CN217421975U - Drum brake adjustment frock - Google Patents
Drum brake adjustment frock Download PDFInfo
- Publication number
- CN217421975U CN217421975U CN202220546699.1U CN202220546699U CN217421975U CN 217421975 U CN217421975 U CN 217421975U CN 202220546699 U CN202220546699 U CN 202220546699U CN 217421975 U CN217421975 U CN 217421975U
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- Prior art keywords
- drum brake
- adjusting
- brake
- shoe
- clamping device
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- 238000003825 pressing Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000000003 hoof Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a drum brake adjusting tool, which relates to the field of automobile brakes and comprises a clamping device and the like, wherein the drum brake is arranged on a base, and the clamping device is driven by a clamping cylinder to move up and down along the vertical direction; a left adjusting device is arranged on one side of the clamping device in a sliding mode, a right adjusting device is arranged on the other side of the clamping device in a sliding mode, and the left adjusting device and the right adjusting device move back and forth along the horizontal direction of the drum brake so as to contact and adjust the roundness of the left shoe plate and the right shoe plate; the shifting device is fixed on the clamping device and moves up and down along with the clamping device, and the shifting device is used for matching with shifting of the adjusting sleeve so as to adjust the size of the outer circle of the drum brake. The utility model corrects the excircle of the brake shoe of the brake three times before the clearance adjustment, and the excircle of the brake shoe of the brake after the adjustment has better roundness effect than that of the brake shoe of the brake adjusted by the traditional method; when adjusting the clearance, use servo motor drive continuous adjustment, compare in traditional mode, efficiency improves 100%, and the repeatability is better, intensity of labour reduces.
Description
Technical Field
The utility model relates to an automotive brake's field, concretely relates to drum brake adjusts frock.
Background
The automobile drum brake utilizes the brake shoe to extrude the brake drum to obtain the braking force, ensures the clearance between the brake shoe and the brake drum, needs to adjust the brake adjusting sleeve assembly, and the current common practice is as follows: the drum brake is installed on the positioning mandrel, then the excircle size of the brake shoe of the drum brake is locked by two symmetrical positioning tools, and finally the excircle size of the brake shoe is adjusted by using a straight screwdriver to pull the ratchet wheel of the adjusting sleeve.
However, the prior art solutions have the following drawbacks:
1. the size of the outer circle is fixed, and the problems of size adjustment failure and brake shoe out-of-round are caused by adopting a method of carrying out one-time adjustment by using a screw driver;
2. the assembly efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a drum brake adjusting tool to realize the automatic adjustment of the excircle size of the drum brake; the dimensional accuracy and the roundness of the excircle of the drum brake are ensured; the structure is practical and effective, and can be widely popularized and used; high production efficiency and convenient operation.
The purpose of the utility model is accomplished through following technical scheme: the drum brake adjusting tool is used for adjusting the size of an outer circle of a drum brake, the drum brake comprises a brake bottom plate, a left shoe, a right shoe and an adjusting sleeve, and the adjusting sleeve is arranged between the left shoe and the right shoe. The tool comprises a clamping device, a shifting device, a base and a clamping cylinder, wherein the drum brake is installed on the base, the clamping device is arranged above the drum brake, and the clamping device is driven by the clamping cylinder to move up and down along the vertical direction of the drum brake so as to clamp or loosen a brake bottom plate of the drum brake; a left adjusting device is arranged on one side of the clamping device in a sliding mode and is opposite to the left shoe, a right adjusting device is arranged on the other side of the clamping device in a sliding mode and is opposite to the right shoe, and the left adjusting device and the right adjusting device move back and forth along the horizontal direction of the drum brake so as to contact and adjust the roundness of the left shoe and the right shoe; the shifting device is fixed on the clamping device and moves up and down along with the clamping device, and the shifting device is used for matching with shifting of the adjusting sleeve so as to adjust the size of the outer circle of the drum brake.
As a further technical scheme, the clamping device comprises a lifting plate, and the telescopic end of the clamping cylinder is fixed on the lifting plate and used for driving the lifting plate to lift up and down.
As a further technical scheme, a sliding rail is arranged on the lifting plate along the length direction of the lifting plate, sliding grooves are formed in the positions, corresponding to the sliding rail, of the left adjusting device and the right adjusting device, and the sliding grooves are in sliding fit with the sliding rail.
As a further technical scheme, the slide rail is arranged at the edges of the front end and the rear end of the lifting plate.
As a further technical scheme, a left adjusting cylinder is fixed on the left side of the lifting plate, and the telescopic end of the left adjusting cylinder is connected with and drives a left adjusting device through a left connecting baffle; a right adjusting cylinder is fixed at the position of the right side of the lifting plate corresponding to the left adjusting cylinder, and the telescopic end of the right adjusting cylinder is connected with a right adjusting device through a right connecting baffle plate.
As a further technical scheme, a left limiting pin is arranged on one side, close to the left connecting baffle, of the left adjusting cylinder and is used for limiting the stroke of the left connecting baffle and the stroke of the left adjusting device moving rightwards; and a right limiting pin is arranged on one side of the right adjusting cylinder, which is close to the right connecting baffle plate, and is used for limiting the leftward movement stroke of the right connecting baffle plate and the right adjusting device.
As a further technical scheme, the shifting device comprises an adjusting mechanism and a servo motor, wherein the adjusting mechanism is fixed on the lifting plate; the servo motor is fixed on the adjusting mechanism and used for connecting and driving a gear shaft on the adjusting mechanism to rotate, and a gear sleeved on the gear shaft is in meshing transmission with a ratchet wheel on the adjusting sleeve.
As a further technical scheme, a motor shaft of the servo motor is connected with a gear shaft through a belt, and the adjusting mechanism is fixed with the lifting plate through a fixing plate.
As a further technical scheme, a pressing block is fixed at the bottom of the lifting plate and used for pressing the brake bottom plate.
As a further technical scheme, a center hole is formed in the center of the brake bottom plate, a connecting disc is arranged on the base, and the brake bottom plate is fixedly connected with the connecting disc; the central bolt penetrates through the base, the connecting disc and the braking bottom plate in sequence and is fixedly connected with the central hole.
The utility model has the advantages that:
1. before the clearance is adjusted, the excircle of the brake shoe of the brake is corrected for three times, and the roundness effect is better after the excircle of the brake shoe of the brake is adjusted than that of the excircle of the brake shoe of the brake in a traditional mode;
2. when adjusting the clearance, use servo motor drive continuous adjustment, compare in traditional mode, efficiency improves 100%, and the repeatability is better, intensity of labour reduces.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic view of the structure of the present invention.
Fig. 3 is a sectional view a-a of fig. 2.
Fig. 4 is a sectional view B-B of fig. 2.
Fig. 5 is a schematic structural diagram of the toggle device.
Fig. 6 is a schematic view of the mounting structure of the drum brake and the base 1.
Fig. 7 is a schematic view of the mounting structure of the drum brake and the base 2.
Fig. 8 is a schematic view of the structure of the clamping device.
Description of reference numerals: the device comprises a left adjusting device 1, a left limit pin 2, a left adjusting cylinder 3, an adjusting mechanism 4, a gear shaft 41, a gear 42, a belt 43, a fixing plate 44, a drum brake 5, an adjusting sleeve 51, a brake bottom plate 52, a left shoe 53, a right shoe 54, a ratchet 55, a central hole 56, a servo motor 6, a clamping device 7, a right adjusting cylinder 8, a right limit pin 9, a right adjusting device 10, a base 11, a clamping cylinder 12, a lifting plate 13, a sliding rail 14, a sliding chute 15, a left connecting baffle 16, a right connecting baffle 17, a pressing block 18, a connecting plate 19 and a central bolt 20.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings:
example (b): as shown in fig. 1 to 8, the drum brake adjusting tool is used for adjusting the outer circle size of a drum brake 5, the drum brake 5 includes a brake base plate 52, a left shoe 53, a right shoe 54, and an adjusting sleeve 51, and the adjusting sleeve 51 is disposed between the left shoe 53 and the right shoe 54. The tool comprises a clamping device 7, a shifting device, a base 11 and a clamping cylinder 12, wherein the drum brake 5 is installed on the base 11, the clamping device 7 is arranged above the drum brake 5, and the clamping device 7 is driven by the clamping cylinder 12 to move up and down along the vertical direction of the drum brake 5 so as to clamp or loosen a brake bottom plate 52 of the drum brake 5; one side of the clamping device 7 is provided with the left adjusting device 1 in a sliding manner, the left adjusting device 1 is opposite to the left shoe 53, the other side of the clamping device 7 is provided with the right adjusting device 10 in a sliding manner, the right adjusting device 10 is opposite to the right shoe 54, the left adjusting device 1 and the right adjusting device 10 move back and forth along the horizontal direction of the drum brake 5, so that the roundness of the left shoe 53 and the roundness of the right shoe 54 are contacted and adjusted, and preferably, the inner walls of the left adjusting device 1 and the right adjusting device 10 are both arc-shaped. The shifting device is fixed on the clamping device 7 and moves up and down along with the clamping device 7, and the shifting device is used for matching with shifting of the adjusting sleeve 51 so as to adjust the size of the outer circle of the drum brake 5.
Further, as shown in fig. 1 and 8, the clamping device 7 includes a lifting plate 13, and the telescopic end of the clamping cylinder 12 is fixed on the lifting plate 13 for driving the lifting plate 13 to lift up and down. Slide rails 14 are arranged on the lifting plate 13 along the length direction of the lifting plate (preferably, the slide rails 14 are symmetrically arranged at the edges of the front end and the rear end of the lifting plate 13), slide grooves 15 are arranged at positions, corresponding to the slide rails 14, of the left adjusting device 1 and the right adjusting device 10, and the slide grooves 15 are in sliding fit with the slide rails 14. A left adjusting cylinder 3 is fixed on the left side of the lifting plate 13, and the telescopic end of the left adjusting cylinder 3 is connected with and drives the left adjusting device 1 through a left connecting baffle 16. A right adjusting cylinder 8 is fixed at the position of the right side of the lifting plate 13 corresponding to the left adjusting cylinder 3, and the telescopic end of the right adjusting cylinder 8 is connected with and drives a right adjusting device 10 through a right connecting baffle 17.
Furthermore, one side that is close to left connection baffle 16 on the left adjustment cylinder 3 sets up left spacer pin 2 for the stroke of limiting left connection baffle 16 and left adjusting device 1 and moving right, when left connection baffle 16 touched left spacer pin 2, left adjusting device 1 stopped sliding right, thereby guaranteed that the excircle diameter of left hoof piece 53 reaches the predetermined requirement. And a right limit pin 9 is arranged on one side of the right adjusting cylinder 8 close to the right connecting baffle plate 17 and used for limiting the leftward movement stroke of the right connecting baffle plate 17 and the right adjusting device 10, and when the right connecting baffle plate 17 touches the right limit pin 9, the right adjusting device 10 stops sliding leftward, so that the outer circle diameter of the right shoe 54 is ensured to meet the preset requirement.
Referring to fig. 3 and 5, the shifting device comprises an adjusting mechanism 4 and a servo motor 6, wherein the adjusting mechanism 4 is fixed on the lifting plate 13 through a fixing plate 44; the servo motor 6 is fixed on the adjusting mechanism 4 and used for connecting and driving the gear shaft 41 on the adjusting mechanism 4 to rotate, and the gear 42 sleeved on the gear shaft 41 is in meshed transmission with the ratchet wheel 55 on the adjusting sleeve 51. Preferably, the motor shaft of the servo motor 6 is connected with the moving gear shaft 41 through a belt 43.
As shown in fig. 3, 6 and 7, a pressing block 18 is fixed at the bottom of the lifting plate 13 for pressing the brake bottom plate 52. A central hole 56 is formed in the center of the brake bottom plate 52, a connecting disc 19 is arranged on the base 11, and the brake bottom plate 52 is fixedly connected with the connecting disc 19; the central bolt 20 penetrates through the base 11, the connecting disc 19 and the brake bottom plate 52 in sequence and is fixedly connected with the central hole 56.
The utility model discloses a working process: initially, the drum brake 5 is placed on the base 11, the center bolt 20 penetrates the base 11, the connecting disc 19 and the brake bottom plate 52 in sequence, and is fixedly connected with the center hole 56, and the brake bottom plate 52 and the connecting disc 19 are fixedly connected by bolts. After the fixing is completed, the clamping cylinder 12 is started, so that the clamping device 7 and the toggle device are driven by the lifting plate 13 to approach towards the drum brake 5 until the pressing block 18 presses the brake bottom plate 52, and at this time, the gear 42 of the adjusting mechanism 4 is just meshed with the ratchet wheel 55 on the adjusting sleeve 51. Then, the left adjusting cylinder 3 and the right adjusting cylinder 8 are started, and when the left connecting baffle 16 touches the left limit pin 2, the left adjusting device 1 stops sliding rightward, so that the diameter of the outer circle of the left shoe 53 is ensured to meet the preset requirement. When the right connecting baffle 17 touches the right limit pin 9, the right adjusting device 10 stops sliding leftwards, so that the diameter of the outer circle of the right shoe 54 is ensured to meet the preset requirement. The two cylinders work for 3 times continuously to and fro to ensure the roundness of the brake shoe. After the roundness is adjusted, the servo motor 6 drives the gear shaft 41 of the adjusting mechanism 4 through the belt 43, so as to shift the ratchet wheel 55, and the outer circle sizes of the left shoe 53 and the right shoe 54 are adjusted to be attached to the corresponding left adjusting device 1 and the right adjusting device 10 under the action of the adjusting sleeve 51. Finally, the ratchet 55 is adjusted back to three teeth to complete the adjustment of the size of the brake shoe.
It should be understood that equivalent substitutions or changes to the technical solution and the inventive concept of the present invention should be considered to fall within the scope of the appended claims for the skilled person.
Claims (10)
1. The utility model provides a drum brake adjusts frock for adjust drum brake (5) excircle size, drum brake (5) are including brake shoe (52), left shoe (53), right shoe (54) and adjusting sleeve pipe (51), and adjusting sleeve pipe (51) set up between left shoe (53) and right shoe (54), its characterized in that: the drum brake device comprises a clamping device (7), a shifting device, a base (11) and a clamping cylinder (12), wherein the drum brake (5) is installed on the base (11), the clamping device (7) is arranged above the drum brake (5), and the clamping device (7) is driven by the clamping cylinder (12) to move up and down along the vertical direction of the drum brake (5) so as to clamp or loosen the drum brake (5); one side of the clamping device (7) is provided with the left adjusting device (1) in a sliding mode, the left adjusting device (1) is right opposite to the left shoe (53), the other side of the clamping device (7) is provided with the right adjusting device (10) in a sliding mode, the right adjusting device (10) is right opposite to the right shoe (54), and the left adjusting device (1) and the right adjusting device (10) move back and forth along the horizontal direction of the drum brake (5) so as to contact and adjust the roundness of the left shoe (53) and the right shoe (54); the poking device is fixed on the clamping device (7) and moves up and down along with the clamping device (7), and the poking device is used for poking the adjusting sleeve (51) in a matched mode so as to adjust the size of the outer circle of the drum brake (5).
2. The drum brake adjustment tool of claim 1, wherein: the clamping device (7) comprises a lifting plate (13), and the telescopic end of the clamping cylinder (12) is fixed on the lifting plate (13) and used for driving the lifting plate (13) to lift up and down.
3. The drum brake adjustment tool of claim 2, wherein: slide rails (14) are arranged on the lifting plate (13) along the length direction of the lifting plate, sliding grooves (15) are arranged at the positions, corresponding to the slide rails (14), of the left adjusting device (1) and the right adjusting device (10), and the sliding grooves (15) are in sliding fit with the slide rails (14).
4. The drum brake adjustment tool of claim 3, wherein: the sliding rails (14) are arranged at the edges of the front end and the rear end of the lifting plate (13).
5. The drum brake adjustment tooling of claim 2 or 3, wherein: a left adjusting cylinder (3) is fixed on the left side of the lifting plate (13), and the telescopic end of the left adjusting cylinder (3) is connected with and drives the left adjusting device (1) through a left connecting baffle plate (16); the right side of the lifting plate (13) is fixed with a right adjusting cylinder (8) at the position corresponding to the left adjusting cylinder (3), and the telescopic end of the right adjusting cylinder (8) is connected with and drives a right adjusting device (10) through a right connecting baffle plate (17).
6. The drum brake adjustment tooling of claim 5, wherein: a left limiting pin (2) is arranged on one side, close to the left connecting baffle (16), of the left adjusting cylinder (3) and is used for limiting the stroke of the left connecting baffle (16) and the left adjusting device (1) moving rightwards; and a right limit pin (9) is arranged on one side, close to the right connecting baffle plate (17), of the right adjusting cylinder (8) and used for limiting the leftward movement stroke of the right connecting baffle plate (17) and the right adjusting device (10).
7. The drum brake adjustment tooling of claim 2, wherein: the shifting device comprises an adjusting mechanism (4) and a servo motor (6), and the adjusting mechanism (4) is fixed on the lifting plate (13); the servo motor (6) is fixed on the adjusting mechanism (4) and is used for connecting and driving a gear shaft (41) on the adjusting mechanism (4) to rotate; when the clamping device (7) clamps the drum brake (5), the gear (42) sleeved on the gear shaft (41) is just meshed with the ratchet wheel (55) on the adjusting sleeve (51) for transmission.
8. The drum brake adjustment tooling of claim 7, wherein: a motor shaft of the servo motor (6) is connected with the movable gear shaft (41) through a belt (43), and the adjusting mechanism (4) is fixed with the lifting plate (13) through a fixing plate (44).
9. The drum brake adjustment tool of claim 2, wherein: and a pressing block (18) is fixed at the bottom of the lifting plate (13) and is used for pressing the brake bottom plate (52).
10. The drum brake adjustment tool of claim 1, wherein: a center hole (56) is formed in the center of the brake bottom plate (52), a connecting disc (19) is arranged on the base (11), and the brake bottom plate (52) is fixedly connected with the connecting disc (19); the central bolt (20) penetrates through the base (11), the connecting disc (19) and the brake bottom plate (52) in sequence and is fixedly connected with the central hole (56).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220546699.1U CN217421975U (en) | 2022-03-14 | 2022-03-14 | Drum brake adjustment frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220546699.1U CN217421975U (en) | 2022-03-14 | 2022-03-14 | Drum brake adjustment frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217421975U true CN217421975U (en) | 2022-09-13 |
Family
ID=83178189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220546699.1U Active CN217421975U (en) | 2022-03-14 | 2022-03-14 | Drum brake adjustment frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217421975U (en) |
-
2022
- 2022-03-14 CN CN202220546699.1U patent/CN217421975U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.1 Wanxiang Road, Xiaoshan Economic and Technological Development Zone, Hangzhou City, Zhejiang Province Patentee after: Wanxiang Intelligent Manufacturing Co.,Ltd. Patentee after: WANXIANG GROUP Co.,Ltd. Address before: No.1 Wanxiang Road, Xiaoshan Economic and Technological Development Zone, Hangzhou City, Zhejiang Province Patentee before: Zhejiang Wanxiang System Co.,Ltd. Patentee before: WANXIANG GROUP Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |