CN219197967U

CN219197967U - Wear alarm integrated self-adjusting arm

Info

Publication number: CN219197967U
Application number: CN202320777611.1U
Authority: CN
Inventors: 杨金琨; 刘自坤; 郭势力; 张博
Original assignee: Henan Dexin Wantong Industrial Co ltd
Current assignee: Henan Dexin Wantong Industrial Co ltd
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-06-16
Anticipated expiration: 2033-04-11

Abstract

The utility model discloses a wear alarm integrated self-adjusting arm, which comprises a self-adjusting arm body and an alarm mechanism, wherein a control arm tooth sleeve is arranged at the lower part of the self-adjusting arm body, one side of the control arm tooth sleeve is connected with a control arm, one side of the control arm is fixedly connected with an arc-shaped track plate, and an adjusting block is arranged in the arc-shaped track plate. Through need remove the fine setting piece and make it remove in the movable tank, make the fine setting piece shift out the movable tank and carry out preliminary spacing through spacing slider, rethread grafting subassembly is fixed regulating block and fine setting piece simultaneously, along with brake braking, slide in the arc track board at the fixed regulating block of self-adjusting arm body surface, until the fine setting piece in the regulating block contacts with the pressure sensor of arc track board tip, pressure sensor feeds back pressure again and sends the alarm to the controller, remind to overhaul, position adjustable through regulating block and fine setting piece, the vehicle of the multiple different brake strokes of better adaptation has improved the practicality.

Description

Wear alarm integrated self-adjusting arm

Technical Field

The utility model relates to the technical field of automatic adjusting arms, in particular to an abrasion alarm integrated self-adjusting arm.

Background

The automatic adjusting arm is used for a drum brake truck, the handle is fixed on the air chamber, the turbine is arranged on the spline shaft, and in order to ensure the driving safety, a proper fit clearance between the brake shoe and the brake drum is required to be ensured, and the adjusting arm is a device for adjusting and controlling the clearance between the brake shoe and the brake drum.

In the running process of a truck, frequent braking can lead to continuous abrasion of a brake shoe and a brake drum, so that the gap between the brake shoe and the brake drum is gradually increased, finally, the stroke of a push rod of a brake air chamber is prolonged, the thrust is reduced, the braking hysteresis and the braking force are reduced, the situation can be found that the brake shoe needs to be replaced only when the brake shoe is manually checked, if the brake shoe is not timely found, the damage of a brake system is caused, and an accident is caused, in the prior art, the detection stroke of an alarm structure is relatively fixed, namely, the alarm can be carried out only when a self-adjusting arm rotates by a fixed angle, and the detection cycle and the rotation degree of the braking of each vehicle are different, so that the alarm structure with higher suitability is needed to adapt to vehicles with various complex conditions.

Disclosure of Invention

Aiming at the defects and shortcomings in the prior art, the utility model provides the wear alarm integrated self-adjusting arm.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a wear alarm integrated self-adjusting arm, which comprises a self-adjusting arm body and an alarm mechanism, wherein a control arm tooth sleeve is arranged at the lower part of the self-adjusting arm body, one side of the control arm tooth sleeve is connected with a control arm, one side of the control arm is fixedly connected with an arc-shaped track plate, an adjusting block is arranged in the arc-shaped track plate, the middle part of the adjusting block is provided with a movable groove, one end of the movable groove is communicated with the outside, a fine adjusting block is connected in a sliding manner in the movable groove, a limiting sliding piece for fixing the position of the fine adjusting block is arranged in the movable groove, one end of the arc-shaped track plate, which is close to the control arm, is provided with a pressure sensor which is matched with the adjusting block and the fine adjusting block, the output end of the pressure sensor is electrically connected with the alarm mechanism, and a plug-in assembly for simultaneously fixing the positions of the adjusting block and the fine adjusting block is arranged on the side wall of the self-adjusting arm body.

By adopting the wear alarm integrated self-adjusting arm, when the wear alarm integrated self-adjusting arm is used, the handle on the self-adjusting arm body is fixed at the end part of the telescopic rod of the air chamber, then the control arm tooth is sleeved on the vehicle spline shaft, then the control arm is fixedly connected with the vehicle body, the alarm mechanism is installed in the cab, the fine adjustment block is moved in the movable groove according to the requirement, the fine adjustment block is moved out of the movable groove to carry out preliminary limit through the limit sliding part, the adjusting block and the fine adjustment block are fixed simultaneously through the plug-in assembly, along with braking, the telescopic rod pushes the handle of the self-adjusting arm body to move, the self-adjusting arm body drives the vehicle spline shaft to rotate to drive the brake shoe to contact with the brake drum for braking, meanwhile, the adjusting block fixed on the surface of the self-adjusting arm body slides in the arc-shaped track plate until the fine adjustment block contacts with the pressure sensor at the end part of the arc-shaped track plate, the pressure sensor feeds back the pressure to the controller, and after the condition that the stroke of the push rod is prolonged, the pressure received by the pressure sensor changes, the alarm mechanism is fed back to the alarm mechanism to remind that maintenance is needed.

Preferably, one end of the adjusting block, which is close to the self-adjusting arm body, is fixedly connected with a chassis, and one side wall of the chassis, which is close to the arc-shaped track plate, is in clearance fit with the chassis.

Preferably, a non-slip pad is arranged on one side wall of the chassis, which is close to the self-adjusting arm body.

Preferably, the limiting sliding piece comprises limiting sliding strips fixedly connected to two sides of the end part of the fine adjustment block, and a plurality of limiting sliding grooves spliced with the limiting sliding strips are formed in two side walls of the movable groove.

Preferably, the plug assembly comprises a first jack penetrating through the adjusting block and the chassis, a bolt is inserted into the first jack, a second jack inserted with the bolt is arranged on the fine adjusting block, a plurality of bolt holes in threaded connection with the bolt are formed in the self-adjusting arm body, and the bolt holes are arranged in an arc shape with the axis of the control arm tooth sleeve as a reference.

Preferably, the second jack is designed as a long groove and is matched with the length of the movable groove.

Preferably, the alarm mechanism comprises a buzzer, and the output end of the pressure sensor is electrically connected with the buzzer.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the fine adjustment block is moved in the movable groove by moving the fine adjustment block, the fine adjustment block is moved out of the movable groove to perform preliminary limit through the limit sliding piece, the adjusting block and the fine adjustment block are fixed at the same time through the plug-in assembly, along with braking, the adjusting block fixed on the surface of the self-adjusting arm body slides in the arc-shaped track plate until the fine adjustment block in the adjusting block is contacted with the pressure sensor at the end part of the arc-shaped track plate, the pressure sensor feeds back pressure to the controller to give an alarm, the controller is reminded of maintenance, and the positions of the adjusting block and the fine adjustment block are adjustable, so that the self-adjusting arm is better adapted to vehicles with various different braking strokes, and the practicability is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of the present utility model;

fig. 2 is a split perspective view of a trimming block of the present utility model.

The reference numerals are explained as follows:

1. a self-adjusting arm body; 2. an alarm mechanism; 3. a plug assembly; 3a, bolt holes; 3b, a bolt; 3c, a second jack; 3d, a first jack; 4. a limit slider; 4a, limiting sliding strips; 4b, limiting sliding grooves; 5. a control arm tooth sleeve; 6. a control arm; 7. an arc track plate; 8. a pressure sensor; 9. an adjusting block; 10. a movable groove; 11. fine tuning blocks; 12. a chassis; 13. a buzzer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

Referring to fig. 1-2, the utility model provides an abrasion alarm integrated self-adjusting arm, which comprises a self-adjusting arm body 1 and an alarm mechanism 2, wherein a control arm tooth sleeve 5 is arranged at the lower part of the self-adjusting arm body 1, one side of the control arm tooth sleeve 5 is connected with a control arm 6, one side of the control arm 6 is fixedly connected with an arc track plate 7, an adjusting block 9 is arranged in the arc track plate 7, a movable groove 10 is formed in the middle part of the adjusting block 9, one end of the movable groove 10 is communicated with the outside, a fine adjusting block 11 is slidingly connected in the movable groove 10, a limit sliding piece 4 for fixing the position of the fine adjusting block 11 is arranged in the movable groove 10, a pressure sensor 8 matched with the adjusting block 9 and the fine adjusting block 11 is arranged at one end of the arc track plate 7 close to the control arm 6, the output end of the pressure sensor 8 is electrically connected with the alarm mechanism 2, and a plug-in assembly 3 for simultaneously fixing the positions of the adjusting block 9 and the fine adjusting block 11 is arranged on the side wall of the arm body 1.

As an alternative embodiment, the end of the adjusting block 9 close to the self-adjusting arm body 1 is fixedly connected with the chassis 12, and a side wall of the chassis 12 close to the arc-shaped track plate 7 is in clearance fit with the chassis, so that the adjusting block 9 can be more stable when moving in the arc-shaped track plate 7.

Specifically, a sliding pad (not shown in the figure) is arranged on a side wall of the chassis 12, which is close to the self-adjusting arm body 1, so that when the bolt 3b extrudes the adjusting block 9 and the chassis 12, the surface of the chassis 12 is tightly contacted with the surface of the self-adjusting arm body 1 to increase friction force, and the loosening condition of the adjusting block 9 in multiple braking is avoided.

Referring to fig. 2, the limiting sliding piece 4 includes limiting sliding strips 4a fixedly connected to two sides of the end of the fine adjustment block 11, a plurality of limiting sliding grooves 4b inserted with the limiting sliding strips 4a are formed in two side walls of the movable groove 10, and the limiting sliding strips 4a can be inserted into different limiting sliding grooves 4b by moving the fine adjustment block 11, so that preliminary movement limiting of the fine adjustment block 11 is completed.

As an alternative embodiment, the plugging component 3 includes a first jack 3d penetrating through the adjusting block 9 and the chassis 12, a bolt 3b is plugged into the first jack 3d, a second jack 3c plugging into the bolt 3b is provided on the fine adjusting block 11, a plurality of bolt holes 3a in threaded connection with the bolt 3b are provided on the self-adjusting arm body 1, the plurality of bolt holes 3a are arranged in an arc shape based on the axis of the control arm tooth sleeve 5, the bolt 3b is inserted into the second jack 3c and the first jack 3d, and finally, the bolt holes 3a are fixed, so that the position fixing of the fine adjusting block 11 and the adjusting block 9 is completed.

Specifically, the second insertion hole 3c is designed as a long groove, and is adapted to the length of the movable groove 10, so that the bolt 3b can be smoothly inserted into the second insertion hole 3c to fix the fine adjustment block 11 while the fine adjustment block 11 is moved in position.

As an alternative embodiment, the alarm mechanism 2 includes a buzzer 13, and the output end of the pressure sensor 8 is electrically connected with the buzzer 13, where the buzzer 13 is disposed and can be installed in the cab, so as to improve the reminding effect, and meanwhile, the connection mode of the pressure sensor 8 and the buzzer 13 is automatically controlled by a controller, and a control circuit of the controller can be implemented by simple programming of those skilled in the art, which belongs to the common knowledge in the art, and the application is mainly used for protecting a mechanical device, so that the application does not explain the control mode and circuit connection in detail.

By adopting the structure, when the self-adjusting arm is used, the handle on the self-adjusting arm body 1 is fixed at the end part of the telescopic rod of the air chamber, the control arm toothed sleeve 5 is installed on the vehicle spline shaft, then the control arm 6 is fixedly connected with the vehicle body, the alarm mechanism 2 is installed in the cab, the micro-adjusting block 11 is moved in the movable groove 10 according to the requirement, the micro-adjusting block 11 is moved out of the movable groove 10 to carry out preliminary limiting through the limiting sliding piece 4, the adjusting block 9 and the micro-adjusting block 11 are simultaneously fixed through the inserting assembly 3, along with braking, the telescopic rod pushes the handle of the self-adjusting arm body 1 to move, the vehicle spline shaft is driven to rotate through the self-adjusting arm body 1 to drive the brake shoe to contact with the brake drum, meanwhile, the adjusting block 9 fixed on the surface of the self-adjusting arm body 1 slides in the arc-shaped track plate 7 until the micro-adjusting block 11 contacts with the pressure sensor 8 at the end part of the arc-shaped track plate 7, the pressure sensor 8 feeds back the pressure to the controller, after the condition that the push rod is lengthened, the pressure sensor 8 receives the pressure changes, and the alarm mechanism 2 is fed back to alarm to remind that maintenance is required.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a wear warning integral type self-adjusting arm, includes self-adjusting arm body (1) and alarm mechanism (2), its characterized in that: the lower part of this self-adjusting arm body (1) is equipped with control arm tooth cover (5), one side of control arm tooth cover (5) is connected with control arm (6), one side fixedly connected with arc track board (7) of this control arm (6), the inside of arc track board (7) is equipped with regulating block (9), movable groove (10) have been seted up at the middle part of regulating block (9), the one end and the external intercommunication of this movable groove (10), sliding connection has fine setting piece (11) in movable groove (10), and is equipped with in movable groove (10) spacing slider (4) that are used for fixing fine setting piece (11) position, and arc track board (7) are close to the one end of control arm (6) install with pressure sensor (8) of regulating block (9) and fine setting piece (11) adaptation, and the output and alarm mechanism (2) electricity of pressure sensor (8) are connected, be provided with on the lateral wall of fixed simultaneously plug-in components (3) of regulating block (9) and fine setting piece (11) position.

2. The wear alert integrated self-adjusting arm of claim 1, wherein: one end of the adjusting block (9) close to the self-adjusting arm body (1) is fixedly connected with a chassis (12), and one side wall of the chassis (12) close to the arc-shaped track plate (7) is in clearance fit with the chassis.

3. The wear alert integrated self-adjusting arm of claim 2, wherein: and an anti-slip pad is arranged on one side wall of the chassis (12) close to the self-adjusting arm body (1).

4. The wear alert integrated self-adjusting arm of claim 1, wherein: the limiting sliding piece (4) comprises limiting sliding strips (4 a) fixedly connected to two sides of the end part of the fine adjustment block (11), and a plurality of limiting sliding grooves (4 b) spliced with the limiting sliding strips (4 a) are formed in two side walls of the movable groove (10).

5. The wear alert integrated self-adjusting arm of claim 2, wherein: the utility model discloses a control arm tooth cover, including grafting subassembly (3), including running through first jack (3 d) of regulating block (9) and chassis (12) in grafting subassembly (3), peg graft in this first jack (3 d) have bolt (3 b), set up second jack (3 c) with bolt (3 b) grafting on fine setting piece (11), set up a plurality of bolt holes (3 a) with bolt (3 b) threaded connection on self-adjusting arm body (1), and a plurality of bolt holes (3 a) are the arc with the axis of control arm tooth cover (5) as the benchmark and arrange.

6. A wear alert integrated self-adjusting arm as in claim 5, wherein: the second jack (3 c) is designed to be a long groove and is matched with the length of the movable groove (10).

7. The wear alert integrated self-adjusting arm of claim 1, wherein: the alarm mechanism (2) comprises a buzzer (13), and the output end of the pressure sensor (8) is electrically connected with the buzzer (13).