CN213235868U - Hydraulic drum type double-collar shoe gap self-adjusting brake with mechanical alarm device - Google Patents
Hydraulic drum type double-collar shoe gap self-adjusting brake with mechanical alarm device Download PDFInfo
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- CN213235868U CN213235868U CN202021937255.8U CN202021937255U CN213235868U CN 213235868 U CN213235868 U CN 213235868U CN 202021937255 U CN202021937255 U CN 202021937255U CN 213235868 U CN213235868 U CN 213235868U
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- brake shoe
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Abstract
The utility model relates to a hydraulic drum type double-collar shoe clearance self-adjusting brake with a mechanical alarm device, which comprises a brake base, wherein two brake sub-pumps are connected on the brake base, each brake sub-pump comprises a pump body and a piston, a rotatable ratchet assembly is penetrated at the end part of the piston, the ratchet assembly is in threaded connection with an adjusting bolt, the adjusting bolt and the pump body are respectively connected with brake shoe assemblies at two sides, a reset spring is connected between the two brake shoe assemblies, each brake shoe assembly comprises a reinforcing plate and a lining plate, the lining plate is connected with a friction plate and a spring piece, the pump body is rotatably connected with a rotating shifting plate through a positioning bolt, the shifting plate is connected with a return spring, the other end of the return spring is connected with a support plate, the support plate is connected with the piston, and is also provided with a support end for supporting the shifting plate, the hydraulic drum type double-collar shoe, the brake is guaranteed to be normally used, and a mechanical alarm is provided to remind of replacing a friction plate or a brake shoe assembly.
Description
Technical Field
The utility model relates to a stopper especially relates to a take mechanical alarm device's two leading hoof clearances of hydraulic drum formula self-modulation stopper.
Background
The friction plate is continuously worn due to frequent braking in the use process of the automobile brake; when the friction plate reaches the use limit size, the friction plate (or a brake shoe assembly) needs to be replaced, otherwise, the situation of insufficient braking force and even braking failure occurs, and great hidden danger is brought to driving safety; however, due to factors such as road conditions and usage habits, the service life and the wear degree of the friction plate are different, and the friction plate is worn to the limit size when the time or the mileage specified in the usage specification is not reached, so that a user can not know the wear degree; great hidden danger is brought to traffic safety.
SUMMERY OF THE UTILITY MODEL
The applicant researches and improves the defects and provides a hydraulic drum type double-leading-shoe clearance self-adjusting brake with a mechanical alarm device.
The utility model discloses the technical scheme who adopts as follows:
the utility model provides a take two leading hoof clearance self-modulation brakes of mechanical alarm device's hydraulic drum, includes the brake base, connect two brake wheel pumps on the brake base, the brake wheel pump includes the pump body and piston, rotatable ratchet assembly has been worn to the piston tip, ratchet assembly threaded connection adjusting bolt, and adjusting bolt and the pump body connect the brake shoe assembly of both sides respectively, connect reset spring between two brake shoe assemblies, the brake shoe assembly includes reinforcing plate and welt, welt connection friction disc and spring leaf, it is used for stirring ratchet assembly pivoted group board to rotate to connect through positioning bolt on the pump body, dial the board and connect return spring, the bearing plate is connected to the return spring other end, the piston is connected to the bearing plate, and the bearing plate still sets up the holding end that the board was dialled in the support.
As a further improvement of the above technical solution:
the brake shoe assembly is further connected with a pressing mechanism, the pressing mechanism comprises a positioning rod, the positioning rod penetrates through holes in reinforcing plates of the brake base and the brake shoe assembly from the lower side of the brake base and extends to the upper side of the reinforcing plate, the positioning rod is located above the reinforcing plate of the brake shoe assembly and is sleeved with a spring seat and a pressing spring, and the positioning rod is located above the pressing spring and is connected with the pressing seat.
The friction disc is connected in the welt outside, the spring leaf is connected at the welt inboard, the spring leaf includes installation section and the section of bending, set up the riveting hole on the installation section, the installation section passes riveting hole fixed connection to the welt inboard through the rivet, the section of bending passes the through-hole of seting up on the welt and extends to the welt outside.
And arc-shaped supporting seats for supporting the brake shoe assembly are arranged above and below the lining plate.
The utility model has the advantages as follows: in the hydraulic drum type double-collar shoe gap self-adjusting brake with the mechanical alarm device, a friction plate is continuously abraded in the use process of the brake, the gap between a brake shoe and a brake drum is gradually increased, and a piston of a brake cylinder pushes a brake shoe assembly to apply pressure to the brake drum so as to brake; the piston can drive the supporting plate to move when moving, the supporting plate can drive the shifting plate to rotate through the return spring, and the ratchet assembly can be driven to rotate through the shifting plate; when the clearance between the brake shoe and the brake drum reaches a designed value, the ratchet assembly is shifted by the rotating angle of the shifting plate to rotate by one tooth, and the bolt can be outwards adjusted by the rotation of the ratchet assembly through the thread, so that the clearance between the brake shoe assembly and the brake drum is automatically compensated, the average value of the clearance between the brake shoe assembly and the brake drum is always kept in a reasonable range, and the normal work of the brake is ensured; when the friction plates are worn to the maximum value, the bending sections of the spring pieces are in contact with the brake drum during braking, the spring pieces vibrate continuously to make sounds under the elastic action of the spring pieces, the sounds are large and can be directly heard by a person sitting in a cab, and after the sounds are heard, the driver can judge that the friction plates of the brake shoe assembly reach the maximum service life and needs to replace the friction plates or the brake shoe assembly in pairs.
Drawings
Fig. 1 is the utility model provides a hydraulic drum formula double leading shoe clearance self-modulation brake's of taking mechanical alarm device plan view.
Fig. 2 is the cross-sectional view of the hydraulic drum type double leading shoe gap self-adjusting brake with the mechanical alarm device provided by the utility model.
Fig. 3 is a top view of the hydraulic drum type double-collar shoe gap self-adjusting brake shoe assembly with mechanical alarm device provided by the present invention.
Fig. 4 is a side view of the hydraulic drum type double-collar shoe clearance self-adjusting brake shoe assembly with mechanical alarm device provided by the utility model.
Fig. 5 is a top view of the hydraulic drum type double-collar shoe gap self-adjusting brake spring piece with the mechanical alarm device provided by the utility model.
Fig. 6 is a side view of the hydraulic drum type double-collar shoe gap self-adjusting brake spring piece with the mechanical alarm device provided by the utility model.
Fig. 7 is a top view of the hydraulic drum type double-collar shoe gap self-adjusting brake cylinder with mechanical alarm device of the present invention.
Fig. 8 is a sectional view of the hydraulic drum type double-collar shoe gap self-adjusting brake cylinder with mechanical alarm device of the present invention.
Fig. 9 is a front view of the hydraulic drum type dual-collar shoe clearance self-adjusting brake cylinder with mechanical alarm device of the present invention.
In the figure: 1. a brake base; 2. a brake cylinder; 21. a pump body; 22. a piston; 221. a support plate; 23. A ratchet assembly; 231. adjusting the bolt; 24. dialing a plate; 241. positioning the bolt; 25. a return spring; 3. A brake shoe assembly; 31. a reinforcing plate; 32. a liner plate; 321. a circular arc-shaped supporting seat; 33. a friction plate; 34. A spring plate; 341. an installation section; 342. bending sections; 343. riveting holes; 344. riveting; 35. a hold-down mechanism; 351. positioning a rod; 352. a spring seat; 353. a compression spring; 354. a pressing seat; 4. a return spring.
Detailed Description
The following describes a specific embodiment of the present embodiment with reference to the drawings.
As shown in fig. 1 to 9, the hydraulic drum type double leading shoe gap self-adjusting brake with a mechanical alarm device of the present embodiment includes a brake base 1, two brake cylinders 2 are connected to the brake base 1, each brake cylinder 2 includes a pump body 21 and a piston 22, a rotatable ratchet assembly 23 is connected to an outer end of the piston 22, the ratchet assembly 23 is connected to an adjusting bolt 231 by a screw thread, the adjusting bolt 231 and the pump body 21 are respectively connected to the brake shoe assemblies 3 on two sides, the brake shoe assembly 3 is further connected to a pressing mechanism 35, the pressing mechanism 35 includes a positioning rod 351, the positioning rod 351 extends to above the reinforcing plate 31 from a lower side of the brake base 1 through a through hole on the reinforcing plate 31 of the brake base 1 and the brake shoe assembly 3, the positioning rod 351 is located above the reinforcing plate 31 of the brake shoe assembly 3 and is sleeved with a spring seat 352 and a pressing spring 353, and the positioning rod 351 is located above the pressing, a return spring 4 is connected between the two brake shoe assemblies 3, the brake shoe assemblies 3 comprise reinforcing plates 31 and lining plates 32, the outer sides of the lining plates 32 are connected with friction plates 33, the lining plate 32 is provided with an arc-shaped supporting seat 321 which is arranged up and down and used for supporting the brake shoe assembly 3, the inner side of the lining plate 32 is connected with the spring piece 34 through a rivet 344, the spring piece 34 comprises an installation section 341 and a bending section 342, the installation section 341 is provided with a riveting hole 343, the installation section 341 passes through the riveting hole 343 through the rivet 344 and is fixedly connected to the inner side of the lining plate 32, the bending section 342 passes through a through hole formed in the lining plate 32 and extends to the outer side of the lining plate 32, the pump body 21 is rotatably connected with a shifting plate 24 used for shifting the ratchet assembly 23 to rotate through a positioning bolt 241, the shifting plate 24 is connected with a return spring 25, the other end of the return spring 25 is connected with the supporting plate 221, the supporting.
When the hydraulic drum type double-leading-shoe gap self-adjusting brake with the mechanical alarm device is used, when braking is carried out, the brake cylinder 2 enters the hydraulic oil to drive the piston 22 to extend out, so that the two brake shoe assemblies 3 can be driven to move outwards, the braking operation is realized through the friction between the friction plate 33 of the brake shoe assemblies 3 and a brake drum, in the using process of the brake, the friction plate 33 can be continuously worn and thinned, the gap between the brake shoe assemblies 3 and the brake drum is gradually enlarged, the stroke of the piston 22 is enlarged in the braking process, the stroke of the support plate 221 connected on the piston 22 is enlarged, the rotating angle of the shifting plate 24 around the positioning bolt 241 is enlarged, when the pushing stroke of the piston 22 reaches a set value, the ratchet assembly 23 can be shifted to rotate a tooth through the shifting plate 24, and as the ratchet assembly 23 is connected with the adjusting bolt 231 through threads, the adjusting bolt 231 can be driven, thereby driving the brake shoe assembly 3 to move outwards for a certain distance, reducing the gap between the brake shoe assembly 3 and the brake drum, keeping the average value of the gap between the brake shoe assembly 3 and the brake drum within a reasonable range all the time, and ensuring the normal work of the brake; and friction disc 33 is worn and thinned continuously, when friction disc 33 is worn to the limit value, bending section 342 of spring leaf 34 will contact with brake drum during braking, spring leaf 34 itself elastic action makes spring leaf 34 vibrate continuously and make a sound, this sound is great, can be heard by people sitting in the driver's cabin directly, after hearing the sound driver can judge that friction disc 33 of brake shoe assembly 3 has reached the limit life, need to change friction disc 33 or brake shoe assembly 3 in pairs.
The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made without departing from the basic structure of the invention.
Claims (4)
1. The utility model provides a take mechanical alarm device's two leading hoof clearance self-modulation brakes of hydraulic drum, its characterized in that: including brake base (1), connect two brake cylinders (2) on brake base (1), brake cylinder (2) are including the pump body (21) and piston (22), rotatable ratchet assembly (23) have been worn to piston (22) tip, ratchet assembly (23) threaded connection adjusting bolt (231), and adjusting bolt (231) and pump body (21) connect the brake shoe assembly (3) of both sides respectively, connect reset spring (4) between two brake shoe assemblies (3), brake shoe assembly (3) are including reinforcing plate (31) and welt (32), friction disc (33) and spring leaf (34) are connected in welt (32), rotate through positioning bolt (241) on the pump body (21) and connect and be used for stirring ratchet assembly (23) pivoted and dial board (24), dial board (24) and connect return spring (25) one end, the other end of the return spring (25) is connected with a supporting plate (221), the supporting plate (221) is connected with the piston (22), and the supporting plate (221) is also provided with a supporting end for supporting the shifting plate (24).
2. The hydraulic drum type double leading shoe clearance self-adjusting brake with mechanical alarm device as claimed in claim 1, characterized in that: the brake shoe assembly (3) is further connected with a pressing mechanism (35), the pressing mechanism (35) comprises a positioning rod (351), the positioning rod (351) penetrates through holes in reinforcing plates (31) of the brake base (1) and the brake shoe assembly (3) from the lower side of the brake base (1) and extends to the upper side of the reinforcing plate (31), the positioning rod (351) is located on the upper portion of the reinforcing plate (31) of the brake shoe assembly (3) and is sleeved with a spring seat (352) and a pressing spring (353), and the positioning rod (351) is located on the upper portion of the pressing spring (353) and is connected with the pressing seat (354).
3. The hydraulic drum type double leading shoe clearance self-adjusting brake with mechanical alarm device as claimed in claim 1, characterized in that: the friction plate (33) is connected to the outer side of the lining plate (32), the spring piece (34) is connected to the inner side of the lining plate (32), the spring piece (34) comprises an installation section (341) and a bending section (342), a riveting hole (343) is formed in the installation section (341), the installation section (341) penetrates through the riveting hole (343) through a rivet (344) to be fixedly connected to the inner side of the lining plate (32), and the bending section (342) penetrates through a through hole formed in the lining plate (32) to extend to the outer side of the lining plate (32).
4. The hydraulic drum type double leading shoe clearance self-adjusting brake with mechanical alarm device as claimed in claim 1 or 3, characterized in that: and circular arc-shaped supporting seats (321) for supporting the brake shoe assembly (3) are arranged above and below the lining plate (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021937255.8U CN213235868U (en) | 2020-09-07 | 2020-09-07 | Hydraulic drum type double-collar shoe gap self-adjusting brake with mechanical alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021937255.8U CN213235868U (en) | 2020-09-07 | 2020-09-07 | Hydraulic drum type double-collar shoe gap self-adjusting brake with mechanical alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213235868U true CN213235868U (en) | 2021-05-18 |
Family
ID=75871485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021937255.8U Active CN213235868U (en) | 2020-09-07 | 2020-09-07 | Hydraulic drum type double-collar shoe gap self-adjusting brake with mechanical alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213235868U (en) |
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2020
- 2020-09-07 CN CN202021937255.8U patent/CN213235868U/en active Active
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