CN101788028B

CN101788028B - Self-regulation wet type multi-disc brake

Info

Publication number: CN101788028B
Application number: CN2010101316484A
Authority: CN
Inventors: 李春光; 李兴瑞; 宋建平
Original assignee: Shandong Pengxiang Automobile Co Ltd
Current assignee: Shandong Pengxiang Automobile Co Ltd
Priority date: 2010-03-19
Filing date: 2010-03-19
Publication date: 2011-10-05
Anticipated expiration: 2030-03-19
Also published as: CN101788028A

Abstract

The invention discloses a self-regulation wet type multi-disc brake, an end cover (7) is arranged at one end of a cylinder body (5) of the brake; the self-regulation wet type multi-disc brake is characterized in that: a fixed sheet (1) is supported on the end cover (7), a movable sheet (2) is connected with a vehicle wheel hub, a driving piston (3) and a parking piston (4) are arranged in the cylinder body (5), and the cylinder body (5) brakes and moves back under the action of a return spring (17), a mounting bottom plate (6) and a flange disc (8) are connected at the other end of the cylinder body (5), a disc-shaped spring (9) acts on the parking piston (4) and the mounting bottom plate (6), and a guide pin (11), a pre-tightening spring (18), a sliding ring (12), a regulating ring (10) and a pressure ring (13) are arranged between the driving piston (3) and the parking piston (4), a regulation spring (19) and the parking piston (4) are connected with the regulating ring (10), and the regulating ring (10) regulates under the co-action of the regulation spring (19) and the pre-tightening spring (18); therefore, the self-regulation wet type multi-disc brake has small diameter and great brake force and gives attention to the driving and parking braking and clearance regulating function.

Description

Self-regulation wet type multi-disc brake

Technical field:

The present invention relates to mine vehicle technical field, be that a kind of coupling can satisfy driving and parking function requirement specifically on mining car vehicle bridge, and can realize that brake clearance adjusts the wet multi-disc brake of function automatically.

Background technique:

Development along with the mine vehicle, the mine vehicle progressively develops to the large-tonnage vehicle, aspect bearing capacity and output torque, can continue to use original weight card technique route, product specification is done greatly, satisfied the vehicle usage requirement, but because the economic benefit consideration is heavily blocking the mine vehicle multiselect 6X4 structural type that develops on the basis, and the tyre and rim diameter dimension can not improve synchronously with carrying and moment of torsion, causes heavily blocking with drum brake being difficult to meet the demands.

Summary of the invention:

The objective of the invention is to overcome the deficiencies in the prior art, a kind of diameter is less, braking force is taken into account the self-regulation wet type multi-disc brake that function is adjusted in row, parking braking and gap greatly and provide, and has mainly solved the problem of existing mine with the difficult coupling of vehicle large-tonnage, multiaxis (wheel), little wheel rim and break.

In order to achieve the above object, the present invention is achieved in that self-regulation wet type multi-disc brake, and it comprises cylinder body, establishes end cap at an end of cylinder body, end cap and cylinder body are by bolton together, use oil sealing sealing between end cap and vehicle hub, its special way is that stator closely relies on the end cap, and links by spline with cylinder body, moving plate links by spline and vehicle hub, stator and moving plate occur at interval, according to required braking force, and adjustable number; The driving piston is established by two O type circles in the front portion in cylinder body, the driving piston cooperates with the endoporus of cylinder body, and can move axially, the driving piston is by forming the service brake oil pocket between two O type circles and cylinder body, the Parking piston is established by two O type circles in the rear portion in cylinder body, the Parking piston cooperates with the endoporus of cylinder body, and can move axially, the Parking piston is by forming the parking braking oil pocket between two O type circles and cylinder body, on the Parking piston, establish the return bolt, establish return spring on the return bolt, under the effect of return spring, make driving piston deceleration return; The other end at cylinder body passes through bolt connection base plate and flange plate, flange plate is fixed on the axle housing, establish belleville spring between installation base plate and Parking piston, belleville spring acts on the Parking piston and installs on the base plate, by the axial clearance of the two belleville spring is carried out compressed energy-storage; On the driving piston, establish guide finger, at guide finger peripheral hardware preloading spring, on guide finger, establish slip ring, guide finger is the slip ring guiding, preloading spring is between driving piston and slip ring, slip ring is connected with the adjustment ring, slip ring is the middleware between driving piston and the adjustment ring, adjust ring for having the ring part of helicoid, contact on helicoid with the Parking piston that has helicoid equally, by the bolt pressure ring, the gap of slip ring and pressure ring is for setting the gap on the driving piston, adjust spring one end and be fixed on the Parking piston, the other end is fixed on to be adjusted on the ring; Adjust ring and adjust under the acting in conjunction of adjusting spring and preloading spring, preloading spring acts on the slip ring, sets brake clearance jointly by pressure ring and driving piston.

Self-regulation wet type multi-disc brake of the present invention compared with prior art has outstanding substantive distinguishing features and remarkable progress: 1, brake functionality is complete: break is except that all capable parking braking functions of general break, also parking braking and brake clearance are adjusted automatically that function is integrated in the break 2, polydisc structure braking moment is big, and helped modularization and seriation design; 3, parking braking relies on belleville spring to realize, braking force is big, it is little to take up room; 4, adjust brake clearance automatically: with the abrasives wearing and tearing, brake clearance is adjusted invariable automatically, guarantees brake safe, and abrasives obtains utilizing fully, has improved working life, has reduced the maintenance expense.

Description of drawings:

Fig. 1 is a structural representation of the present invention.

The drawing explanation:

1 stator, 2 moving plates, 3 driving pistons, 4 Parking pistons, 5 cylinder bodies 6 are installed base plate 7 end caps 8 flange plate 9 belleville springs 10 and are adjusted ring 11 guide fingers 12 slip rings 13 pressure rings 14 spring washers 15 bolts 16 return bolts 17 return springs 18 preloading springs 19 adjustment spring 20O type circle 21O type circles 22 locking nuts 23 bolts 24 service brake oil pockets 25 parking braking oil pocket 26O type circle 27O type circles

Embodiment:

In order to understand better and to implement, provide specific embodiment below in conjunction with accompanying drawing and describe self-regulation wet type multi-disc brake of the present invention in detail.

Embodiment 1, referring to Fig. 1, be processed into it and comprise cylinder body 5, at an end of cylinder body 5 end cap 7 is installed, end cap 7 passes through bolton together with cylinder body 5, use oil sealing sealing between end cap 7 and vehicle hub, stator 1 is closely relied on the end cap 7, and link by spline with cylinder body 5, moving plate 2 is linked by spline and vehicle hub, stator 1 occurs at interval with moving plate 2, according to required braking force, and adjustable number;

Anterior by two O type circles 26 in

cylinder body

5,27 install driving piston 3, driving piston 3 cooperates with the endoporus of cylinder body 5, and can move axially, driving piston 3 is by two

O type circles

26,27 and 5 of cylinder bodies form service brake oil pocket 24, the rear portion is by two O type circles 20 in

cylinder body

5,21 install Parking piston 4, Parking piston 4 cooperates with the endoporus of cylinder body 5, and can move axially, Parking piston 4 is by two

O type circles

20,21 and 5 of cylinder bodies form parking braking oil pocket 25, on Parking piston 4, fixedly mount return bolts 16 by locking nut 22, return spring 17 is installed on the return bolt 16, under the effect of return spring 17, is made driving piston 3 braking returns;

The other end at cylinder body 5 passes through bolt 23 connection base plates 6 and flange plate 8, flange plate 8 is fixed on the axle housing, installation belleville spring 9 between base plate 6 and the Parking piston 4 is being installed, belleville spring 9 acts on Parking piston 4 and installs on the base plate 6, by the axial clearance of the two belleville spring 9 is carried out compressed energy-storage;

On driving piston 3, guide finger 11 is installed, preloading spring 18 is installed outside guide finger 11, slip ring 12 is installed on guide finger 11, guide finger 11 is slip ring 12 guiding, preloading spring 18 is between driving piston 3 and slip ring 12, slip ring 12 is connected with adjustment ring 10, slip ring 12 is for driving piston 3 and adjust the middleware that encircles between 10, adjust ring 10 for having the ring part of helicoid, contact on helicoid with the Parking piston 4 that has helicoid equally, on driving piston 3, pass through bolt 15 and spring washer 14 fixed pressure rings 13, slip ring 12 is the setting gap with the gap of pressure ring 13, to adjust spring 19 1 ends and be fixed on the Parking piston 4, the other end is fixed on to be adjusted on the ring 10, and certain stretching pretension amount is arranged; Adjusting ring 10 adjusts under the acting in conjunction of adjusting spring 19 and preloading spring 18, preloading spring 18 acts on the slip ring 12, by pressure ring 13 and the driving piston 3 common brake clearances of setting, when the adjusting play, adjusting spring 19 pulling adjustment rings 10 is rotated, have helicoid owing to adjust ring 10, rotation back axially size increases, thereby has reached the adjustment purpose

Self-regulation wet type multi-disc brake of the present invention, moving plate and wheel hub link, the stator transfixion, stator and moving plate can increase and reduce in pairs, thereby obtain needed braking moment; The driving piston compresses Moving plate by hydraulic driving and price fixing reaches the service brake purpose, and braking is removed by the return spring piston return of will driving a vehicle; Parking braking adopts belleville spring to realize, the parking braking oil pocket is full of hydraulic oil compression belleville spring during automobile running, there is not impacting force effect automobile freely to travel between moving plate and stator, when starting parking braking when stopping, the drain charge of parking braking oil pocket hydraulic oil, belleville spring ejects and to compress the service brake piston, adjusts ring, slide blocks and service brake piston, thereby compresses price fixing and Moving plate reaches the parking braking purpose; The automatic adjustment of brake clearance, adjusting ring and Parking piston matches by helicoid, thereby adjust ring rotation under the effect of adjusting spring and reach the purpose that axial motion is adjusted, brake clearance is set by the gap between slide blocks and pressure ring, satisfy when setting the gap, preloading spring compresses adjustment ring and the Parking piston that cooperates self-locking by helicoid, the gap is constant, surpass when setting the gap, driving piston band pressure ring drives the translation of slide blocks trace, the preloading spring pretension is removed, and adjusts the spring pulling and adjusts ring spin balancing axial clearance, and preloading spring effect adjustment finishes.

Claims

1. self-regulation wet type multi-disc brake, it comprises cylinder body (5), establish end cap (7) at an end of cylinder body (5), end cap (7) passes through bolton together with cylinder body (5), uses oil sealing sealing between end cap (7) and vehicle hub, it is characterized in that stator (1) closely relies on the end cap (7), and link by spline with cylinder body (5), moving plate (2) links by spline and vehicle hub, and stator (1) adjustable number occurs at interval with moving plate (2); Driving piston (3) is established by two O type circles in the front portion in cylinder body (5), driving piston (3) cooperates with the endoporus of cylinder body (5), and can move axially, driving piston (3) is by forming service brake oil pocket (24) between two O type circles and cylinder body (5), Parking piston (4) is established by two O type circles in the rear portion in cylinder body (5), Parking piston (4) cooperates with the endoporus of cylinder body (5), and can move axially, Parking piston (4) is by forming parking braking oil pocket (25) between two O type circles and cylinder body (5), upward pass through fixedly return bolt (16) of locking nut (22) at Parking piston (4), establish return spring (17) on the return bolt (16), under the effect of return spring (17), make driving piston (3) braking return; The other end at cylinder body (5) passes through bolt (23) connection base plate (6) and flange plate (8), flange plate (8) is fixed on the axle housing, between installation base plate (6) and Parking piston (4), establish belleville spring (9), belleville spring (9) acts on Parking piston (4) and installs on the base plate (6), by the axial clearance of the two belleville spring (9) is carried out compressed energy-storage; On driving piston (3), establish guide finger (11), at guide finger (11) peripheral hardware preloading spring (18), on guide finger (11), establish slip ring (12), guide finger (11) is slip ring (a 12) guiding, preloading spring (18) is between driving piston (3) and slip ring (12), preloading spring (18) acts on the slip ring (12), slip ring (12) is connected with adjustment ring (10), slip ring (12) is for driving piston (3) and adjust the middleware that encircles between (10), adjust ring (10) for having the ring part of helicoid, contact on helicoid with the Parking piston (4) that has helicoid equally, go up by bolt (15) and spring washer (14) fixed pressure ring (13) at driving piston (3), set brake clearance jointly by pressure ring (13) and driving piston (3), slip ring (12) is the setting gap with the gap of pressure ring (13), adjust spring (19) one ends and be fixed on the Parking piston (4), the other end is fixed on to be adjusted on the ring (10); Adjusting ring (10) adjusts under the acting in conjunction of adjusting spring (19) and preloading spring (18).