CN217020151U - Counter-force arm and torque wrench - Google Patents
Counter-force arm and torque wrench Download PDFInfo
- Publication number
- CN217020151U CN217020151U CN202220695371.6U CN202220695371U CN217020151U CN 217020151 U CN217020151 U CN 217020151U CN 202220695371 U CN202220695371 U CN 202220695371U CN 217020151 U CN217020151 U CN 217020151U
- Authority
- CN
- China
- Prior art keywords
- section
- sliding
- sliding section
- screw
- reaction arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model discloses a counterforce arm and a torque wrench.A main counterforce arm is arranged into an installation section and a sliding section which are used for being installed on an external torque wrench; and the two ends of the sliding section are respectively provided with a mounting section and a limiting unit for limiting the sliding range of the butt joint rod. Meanwhile, a locking unit is arranged to lock the relative position between the butt-joint rod and the sliding section. When practical application, avoid by spacing unit spacing connecting the pole at the removal in-process and drop out the slip section, influence actual operation, can be at the within range adjusting bolt sleeve of slip section for the distance between the outside torque wrench, but the multistage adjustment further increases the application scene to it is few to solve current reaction arm application scene, is difficult to satisfy the problem of actual demand.
Description
Technical Field
The utility model belongs to the technical field of torque wrenches, and particularly relates to a reaction arm and a torque wrench.
Background
An electric constant torque wrench is generally used in a place where a bolt (nut) is attached and detached with a relatively large torque and where a torque accuracy requirement is high. The existing electric torque wrench usually controls a torque value by an intelligent controller according to the working current value change of a motor in the bolt tightening process, and when the torque value reaches a preset value, the motor stops working to realize the required torque value. The electric torque wrench mainly comprises a mechanical part consisting of a reduction gearbox, a reaction arm, a sleeve, an internal shaft, a gear and the like, an electromechanical part consisting of a machine body, a handle, a switch, a cable sheath, a driving motor and the like, and an electronic intelligent part consisting of an intelligent controller.
When the electric torque wrench works, the sleeve sleeves a bolt which needs to be loosened or tightened, the reaction force arm is supported on the adjacent bolt, the switch is pressed to drive the motor to rotate, the sleeve rotates clockwise or anticlockwise through the transmission of the mechanical part, and the loosening or tightening of the bolt is realized under the action of the reaction force arm and the supporting point.
When the whole machine leaves a factory, a conventional reaction arm is arranged. However, the reaction arm often has the problems of insufficient length or overlong length, and the application scenes are few, so that the practical application requirements of construction are difficult to meet.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a reaction arm and a torque wrench, and solves the problems that the existing reaction arm is few in application scenes and difficult to meet actual requirements.
In order to solve the problems, the technical scheme of the utility model is as follows:
a reaction arm of the present invention includes:
the main force arm comprises a mounting section and a sliding section; the mounting section is connected to a first end of the sliding section for mounting to an external torque wrench;
the first end of the connecting rod is connected to the sliding section in a sliding mode, and the first end of the connecting rod is fixed at the position opposite to the sliding section through a locking unit;
the bolt sleeve is arranged at the second end of the connecting rod and used for being sleeved to an external adjacent bolt;
and the limiting unit is detachably connected to the second end of the sliding section and is used for matching with the mounting section for limiting the sliding range of the connecting rod on the sliding section.
According to the reaction arm, the limiting unit comprises an anti-falling thread piece and a first screw hole formed in the end face of the second end of the sliding section; and under the screwing state of the threads, at least part of the anti-falling threaded part extends out of the second end surface of the sliding section.
According to the reaction arm, the anti-falling thread piece comprises an anti-falling screw and a washer; the gasket is sleeved on the thread section of the anti-falling screw, and at least part of the gasket and/or at least part of the screw head of the anti-falling screw extends out of the second end face of the sliding section.
According to the reaction arm, the first end of the connecting rod is a sliding sleeve, and the inner wall surface of the sliding sleeve is matched with the outer wall surface of the sliding section.
According to the reaction arm, the locking unit comprises a set screw and a second screw hole formed in the sliding sleeve; the fastening screw is in threaded connection with the second screw hole and is tightly pressed on the outer surface of the sliding section through the tail end of the fastening screw.
According to the reaction arm, the mounting section is a mounting ring, and a spline for connecting an external torque wrench is arranged on the inner wall surface of the mounting ring.
In the reaction arm of the utility model, the sliding section is in the shape of a cuboid, and the width of the cuboid in the horizontal direction is larger than the height of the cuboid in the vertical direction.
According to the reaction arm, the second end of the connecting rod is provided with a sleeve joint for detachably connecting the bolt sleeve;
the bolt sleeve is sized to mate with an externally adjacent bolt.
The utility model provides a torque wrench, which comprises the reaction arm.
Due to the adoption of the technical scheme, compared with the prior art, the utility model has the following advantages and positive effects:
one embodiment of the utility model provides for the main force arm to be provided with a mounting section and a sliding section for mounting to an external torque wrench, the first end of the extension rod sliding on the sliding section, the second end of the extension rod being provided with a bolt sleeve for connecting an externally adjacent bolt; and the two ends of the sliding section are respectively provided with an installation section and a limiting unit, and the sliding range of the butt joint rod is limited. Meanwhile, a locking unit is arranged to lock the relative position between the butt-joint rod and the sliding section. When practical application, avoid connecting the pole by spacing unit is spacing to drop out the slip section at the removal in-process, influence actual operation, can be at the within range adjusting bolt sleeve of slip section for the distance between the outside torque wrench, but multistage adjustment further increases the application scene to it is few to solve current reaction arm application scene, is difficult to satisfy actual demand's problem.
Drawings
FIG. 1 is a schematic diagram of a reaction arm of the present invention.
Description of reference numerals: 1: an installation section; 2: a sliding section; 3: a connecting rod; 4: a sliding sleeve; 5: a bolt bushing; 6: an anti-drop screw; 7: a gasket; 8: a first screw hole; 9: tightening the screw; 10: and a second screw hole.
Detailed Description
The reaction arm and the torque wrench according to the present invention will be described in detail with reference to the accompanying drawings and embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims.
Example one
Referring to fig. 1, in one embodiment, a reaction arm includes a main force arm, a extension rod 3, a bolt sleeve 5, and a limit unit.
The main force arm comprises a mounting section 1 and a sliding section 2, wherein the mounting section 1 is connected to a first end of the sliding section 2 for mounting to an external torque wrench.
The first end of the connecting rod 3 is slidably connected to the sliding section 2, and the first end of the connecting rod 3 is fixed at a position opposite to the sliding section 2 through a locking unit. The bolt sleeve 5 is arranged at the second end of the extension rod 3 and is used for sleeving the adjacent bolt outside.
The limiting unit is detachably connected to the second end of the sliding section 2 and is used for matching with the sliding range of the limiting connecting rod 3 of the installation section 1 on the sliding section 2.
The present embodiment provides that by arranging the main force arm as a mounting section 1 and a sliding section 2 for mounting to an external torque wrench, a first end of the extension rod 3 slides on the sliding section 2 and a second end of the extension rod 3 is provided with a bolt sleeve 5 for connecting an externally adjoining bolt. And the two ends of the sliding section 2 are respectively provided with a mounting section 1 and a limiting unit for limiting the sliding range of the butt joint rod 3. At the same time, a locking unit is provided to lock the relative position between the docking rod 3 and the sliding section 2. When in actual application, avoid by spacing unit spacing connecting rod 3 and drop out slip section 2 at the removal in-process, influence actual operation, can be at the within range adjusting bolt sleeve 5 of slip section 2 for the distance between the outside torque wrench, but the multistage adjustment further increases and uses the scene to it is few to solve current reaction arm application scene, is difficult to satisfy actual demand's problem.
The specific structure of the reaction arm in this embodiment is further described below:
in this embodiment, the limiting unit comprises an anti-drop screw and a first screw hole 8 arranged on the second end surface of the sliding section 2. And under the screwing state of the threads, at least part of the anti-falling threaded part extends out of the second end surface of the sliding section 2.
Further, the retaining screw includes a retaining screw 6 and a washer 7. The gasket 7 is sleeved on the thread section of the anti-falling screw 6, at least part of the gasket 7 and/or at least part of the screw head of the anti-falling screw 6 extend out of the second end face of the sliding section 2, and the extending part can limit the sliding range of the first end of the butt joint rod 3 on the sliding section 2.
Wherein, first screw 8 can set up in the border department of the second terminal surface of sliding section 2, is more convenient for packing ring 7 or the head of a screw part to stretch out.
In this embodiment, the first end of the extension rod 3 is a sliding sleeve 4, and the inner wall surface of the sliding sleeve 4 matches with the outer wall surface of the sliding section 2.
Further, the locking unit may specifically comprise a set screw 9 and a second threaded hole 10 opening on the sliding sleeve 4. The set screw 9 is screwed into the second threaded hole 10 and is pressed against the outer surface of the sliding section 2 by the tip of the set screw 9, thereby achieving relative positional fixation of the sliding sleeve 4 with respect to the sliding section 2.
In an embodiment, the mounting section 1 of the reaction arm may be a mounting ring, and a spline for connecting an external torque wrench is provided on an inner wall surface of the mounting ring, and is connected to the external torque wrench through the spline to transmit torque.
In this embodiment, the shape of the sliding section 2 may be specifically a cuboid, and the width of the cuboid in the horizontal direction is greater than the height of the cuboid in the vertical direction, because the sliding section 2 is a part of the counterforce arm, its main function is the transmission of the torque, and the horizontal width is made larger, so that the whole transmittable torque of the sliding section 2 is larger, and the large torque scene can be adapted.
In this embodiment the second end of the extension rod 3 is provided with a socket joint for detachable connection of the bolt socket 5 to facilitate replacement of the bolt socket 5 such that the bolt socket 5 is dimensioned to match an externally adjoining bolt.
Example two
The present embodiment provides a torque wrench, which includes the reaction arm in the first embodiment. By arranging the main force arm as a mounting section 1 and a sliding section 2 for mounting to an external torque wrench, a first end of the extension rod 3 slides on the sliding section 2, and a second end of the extension rod 3 is provided with a bolt sleeve 5 for connecting an externally adjoining bolt. And the two ends of the sliding section 2 are respectively provided with an installation section 1 and a limiting unit, and the sliding range of the butt joint rod 3 is limited. At the same time, a locking unit is provided to lock the relative position between the docking rod 3 and the sliding section 2. When practical application, avoid connecting rod 3 by spacing unit is at removal in-process and drop out sliding section 2, influence actual operation, can be at the within range adjusting bolt sleeve 5 of sliding section 2 for the distance between the outside torque wrench, but the multistage adjustment further increases the application scene to it is few to solve current reaction arm application scene, is difficult to satisfy actual demand's problem.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, they are still within the scope of the present invention provided that they fall within the scope of the claims of the present invention and their equivalents.
Claims (9)
1. A reaction arm, comprising:
a main force arm comprising a mounting section and a sliding section; the mounting section is connected to a first end of the sliding section for mounting to an external torque wrench;
the first end of the connecting rod is connected to the sliding section in a sliding mode, and the first end of the connecting rod is fixed at the position opposite to the sliding section through a locking unit;
the bolt sleeve is arranged at the second end of the connecting rod and used for being sleeved to an external adjacent bolt;
and the limiting unit is detachably connected to the second end of the sliding section and is used for matching with the mounting section for limiting the sliding range of the connecting rod on the sliding section.
2. The counterforce arm of claim 1, wherein the limiting unit comprises an anti-drop screw and a first screw hole arranged on the second end surface of the sliding section; and under the screwing state of the threads, at least part of the anti-falling threaded part extends out of the second end surface of the sliding section.
3. The reaction arm of claim 2 wherein the anti-run off screw includes an anti-run off screw and a washer; the gasket is sleeved on the thread section of the anti-falling screw, and at least part of the gasket and/or at least part of the screw head of the anti-falling screw extends out of the second end face of the sliding section.
4. The reaction arm of claim 1 wherein the extension rod is at a first end thereof a sliding sleeve having an inner wall surface that mates with an outer wall surface of the sliding section.
5. The reaction arm of claim 4, wherein said locking unit comprises a set screw and a second threaded hole provided on said sliding sleeve; the fastening screw is in threaded connection with the second screw hole and is tightly pressed on the outer surface of the sliding section through the tail end of the fastening screw.
6. The reaction arm of claim 1 wherein the mounting segment is a mounting ring having splines on an inner wall surface for connection to an external torque wrench.
7. The reaction arm of claim 1 wherein the sliding section is in the shape of a rectangular parallelepiped, the rectangular parallelepiped having a width in the horizontal direction that is greater than its height in the vertical direction.
8. The reaction arm as recited in claim 1 wherein the extension rod is provided at a second end with a socket joint for removably attaching the bolt socket;
the bolt sleeve is sized to mate with an externally adjacent bolt.
9. A torque wrench comprising a reaction arm according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220695371.6U CN217020151U (en) | 2022-03-29 | 2022-03-29 | Counter-force arm and torque wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220695371.6U CN217020151U (en) | 2022-03-29 | 2022-03-29 | Counter-force arm and torque wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217020151U true CN217020151U (en) | 2022-07-22 |
Family
ID=82412875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220695371.6U Active CN217020151U (en) | 2022-03-29 | 2022-03-29 | Counter-force arm and torque wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217020151U (en) |
-
2022
- 2022-03-29 CN CN202220695371.6U patent/CN217020151U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110814716A (en) | Nut screwing device and nut screwing mechanism thereof | |
| CA2501169A1 (en) | Tolerance compensating mounting device | |
| CA2529714A1 (en) | Connector | |
| CA2444933A1 (en) | Tolerance compensating mounting device | |
| CN217020151U (en) | Counter-force arm and torque wrench | |
| CN102800460A (en) | Transformer bushing assembly, transformer bushing mounting tool and transformer bushing mounting method | |
| CN211361283U (en) | Nut screwing device and nut screwing mechanism thereof | |
| CN207757519U (en) | A kind of spanner | |
| CN207104752U (en) | A kind of combined sleeve die nut | |
| CN212123063U (en) | Stud fastening device | |
| CN209868423U (en) | Electric connecting machine for straight thread sleeve of steel bar | |
| CN217046210U (en) | Counter-force arm and torque wrench | |
| CN217046193U (en) | Counter-force arm and torque wrench | |
| CN106272211A (en) | A kind of intelligent spanner | |
| CN216180075U (en) | Electrified instrument of retightening of circuit pin insulator bolt | |
| CN213106591U (en) | Electric screwdriver tightening head and electric screwdriver component | |
| CN101138840A (en) | Double-screw bolt fast-screwing instrument | |
| CN217046192U (en) | Counter-force arm and torque wrench | |
| CN219466021U (en) | Special-shaped hook spanner | |
| CN210897953U (en) | Ground clamp control device | |
| CN220241306U (en) | Hollow sleeve bidirectional torque wrench | |
| CN116330223A (en) | End face nut specialized tool that can connect fast | |
| CN211615404U (en) | Double offset ring adjustable spanner | |
| CN209447700U (en) | A kind of quick coupling and the link rod that insulate | |
| CN221088849U (en) | Transmission rod structure and wrench device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |