Rapid heat dissipation drum brake structure for sweeper

Abstract

The utility model discloses a quick heat dissipation drum brake structure for a sweeper, which belongs to the technical field of drum brakes, and comprises a back plate mechanism and a shoe mechanism, the front end of the back plate mechanism is provided with a drum cover mechanism used for protecting components and providing a friction surface, and the front end of the shoe mechanism is provided with a heat dissipation mechanism. And the back plate mechanism is also provided with a driving mechanism for driving the shoe plate mechanism. Through the arrangement of the heat dissipation holes, the first flow deflectors, the air inlets, the second flow deflectors and the heat dissipation fins, the heat dissipation area of the device and the circulation performance of air in the device are effectively improved, the flow speed of air flow in the device is increased, and therefore the device can dissipate heat rapidly, and through the arrangement of the heat dissipation fins, the shoe mechanisms and the friction mechanisms, the heat dissipation efficiency is improved. The strength of the shoe mechanism is effectively improved, the shoe mechanism is not prone to deformation, the service life of the device is prolonged, only the friction mechanism needs to be replaced during maintenance, and the maintenance cost of the device is reduced.

Description

Technical Field

[0001] This utility model relates to the field of drum brake technology, and in particular to a fast heat dissipation drum brake structure for sweepers. Background Technology

[0002] As specialized equipment in the sanitation field, sweepers play a crucial role in cleaning public areas such as urban roads and squares. They enable efficient and comprehensive cleaning operations, significantly improving sanitation work efficiency and reducing manual labor intensity. In terms of operational safety, drum brake systems are widely used. During operation, the brake shoes expand outward under hydraulic or mechanical force, causing the friction lining to make close contact with the inner wall of the brake drum. The friction force is used to decelerate or brake the vehicle. With its advantages of simple structure, low cost, and stable braking performance, it has become one of the choices for many vehicle braking systems.

[0003] Existing drum brakes are mostly composed of core components such as brake drums, brake shoes, and friction linings. Their structure is often relatively closed and the heat dissipation area is small, resulting in low heat dissipation efficiency. Drum brakes generate a lot of heat during braking. When encountering situations requiring frequent or prolonged braking, such as long downhill slopes and continuous curves, the internal heat will continue to accumulate, and the temperature of the components will continue to rise, causing the braking distance to increase or even brake failure, creating serious safety hazards. Furthermore, the brake shoes and friction parts of existing drum brakes are mostly integrated. When the friction linings wear out, they often need to be replaced together with the brake shoes, resulting in high maintenance costs.

[0004] Therefore, there is an urgent need to provide a fast-heat dissipation drum brake structure for sweepers to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a fast heat dissipation drum brake structure for sweepers.

[0006] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: a fast heat dissipation drum brake structure for a sweeper is provided, including a back plate mechanism and a shoe plate mechanism. The front end of the back plate mechanism is provided with a drum cover mechanism for protecting components and providing a friction surface. The back plate mechanism is also equipped with a drive mechanism for driving the shoe plate mechanism.

[0007] The back plate mechanism is also rotatably equipped with two shoe-shaped mechanisms.

[0008] The shoe mechanism is also screwed with a friction mechanism for generating braking force.

[0009] The present invention is further configured such that: the back plate mechanism includes a back plate body, the back plate body is provided with a plurality of mounting slots, and the back plate mechanism is also integrally fixed with a rotating connecting part.

[0010] With the above technical solution, the backplate body is made of alloy cast iron. The backplate body can be fixed to the vehicle body through the mounting slot, and two rotating pins are provided on the rotating connection part.

[0011] The present invention is further configured such that: the drum cover mechanism includes a drum body at the front end of the back plate body that is not fixedly set, the drum body is provided with a second mounting slot, and the drum body is also provided with a plurality of heat dissipation holes.

[0012] Through the above technical solution, the drum body is also made of alloy cast iron. The drum body can be fixed to the vehicle axle through the second mounting slot. The heat dissipation hole can effectively increase the heat dissipation area of ​​the drum body and allow the heat inside the drum body to be discharged from the heat dissipation hole.

[0013] The present invention is further configured such that: a plurality of guide vanes are integrally fixed on the drum body, and a plurality of air inlets are also provided on the front wall of the drum body, and a guide vane is integrally fixed on one side of the air inlet.

[0014] Through the above technical solution, the first guide vane effectively increases the heat dissipation area of ​​the device. The direction of the first guide vane is the same as the forward direction of the vehicle. When the vehicle moves forward, the airflow on the windward side will enter the drum body through the heat dissipation hole under the reverse flow effect of the first guide vane, further improving the heat dissipation efficiency of the device. The air inlet and the second guide vane have the same effect as above, which can also effectively improve the heat dissipation area and internal air circulation of the device. In addition, the heat dissipation hole and the air inlet can also effectively reduce the weight of the drum body.

[0015] The present invention is further configured such that: the driving mechanism includes a hydraulic push rod fixedly installed on the back plate body, and the driving mechanism also includes two connecting pieces integrally fixed on the back plate body, and a return spring is welded on the connecting pieces.

[0016] With the above technical solution, the hydraulic push rod is connected to the vehicle's hydraulic braking system through pipelines. When the operator depresses the brake pedal, the hydraulic braking system fills the hydraulic push rod with hydraulic oil, causing the hydraulic push rod to extend on both sides, thereby pushing the shoe mechanism on both sides to make its friction part contact the inner wall of the drum and generate braking force. When the operator releases the brake pedal, the hydraulic push rod returns to its original position, and the return spring also drives the shoe mechanism to return to its original position.

[0017] The present invention is further configured such that: the shoe plate mechanism includes two shoe plate bodies rotatably connected to the rotatable connecting part, the shoe plate body is provided with a rotatable connecting hole, the shoe plate body is welded and fixed with a connecting piece two, the shoe plate body is also integrally fixed with a plurality of heat dissipation fins, and the shoe plate body is also integrally fixed with a screw hole post.

[0018] Through the above technical solution, the shoe body is rotatably connected to the rotating connecting part through the rotating connecting hole, the connecting piece two is fixed to the other end of the return spring, the heat sink can effectively increase the heat dissipation area of ​​the shoe body, and also increase the strength of the shoe body, effectively avoiding deformation of the shoe body, the two ends of the screw hole column are connected, and both ends of its interior are provided with internal threads.

[0019] The present invention is further configured such that: the friction mechanism includes a mounting plate fixed to the shoe body by screws, a friction lining is bonded to the outside of the mounting plate, a plurality of connecting ears are integrally fixed on the mounting plate, and mounting screws are provided on the inner side of the connecting ears.

[0020] With the above technical solution, the mounting plate can be snapped onto the shoe body, and the friction lining is a ceramic fiber friction lining with a high coefficient of friction and good heat resistance. The number and position of the connecting ears are matched with the screw hole post. The mounting plate and friction lining can be fixed to the shoe body with mounting screws. When the friction lining wears and ages, the staff can easily replace the mounting plate and friction lining without replacing the entire shoe mechanism, thus reducing the maintenance cost of the device.

[0021] The beneficial effects of this utility model are as follows:

[0022] 1. By setting up heat dissipation holes, guide vane one, air inlet, guide vane two and heat dissipation fins, this utility model effectively improves the heat dissipation area and the airflow inside the device, and increases the airflow velocity inside the device, thereby enabling the device to dissipate heat quickly.

[0023] 2. By incorporating heat sinks, a shoe mechanism, and a friction mechanism, this utility model effectively improves the strength of the shoe mechanism, making it less prone to deformation and extending the service life of the device. Furthermore, maintenance only requires replacing the friction mechanism, which helps reduce the maintenance cost of the device. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a structural diagram of the back plate mechanism, drive mechanism, shoe plate mechanism and friction mechanism of this utility model;

[0026] Figure 3This is a structural diagram of the backplate mechanism and drive mechanism of this utility model;

[0027] Figure 4 This is a structural diagram of the shoe mechanism of this utility model;

[0028] Figure 5 This is a structural diagram of the friction mechanism of this utility model.

[0029] In the diagram: 1. Backplate mechanism; 101. Backplate body; 102. Mounting slot one; 103. Rotating connection part; 2. Drum cover mechanism; 201. Drum body; 202. Mounting slot two; 203. Heat dissipation hole; 204. Guide vane one; 205. Air inlet; 206. Guide vane two; 3. Drive mechanism; 301. Hydraulic push rod; 302. Connecting piece one; 303. Return spring; 4. Shoe mechanism; 401. Shoe body; 402. Rotating connection hole; 403. Connecting piece two; 404. Heat dissipation fin; 405. Screw hole post; 5. Friction mechanism; 501. Mounting piece; 502. Friction lining; 503. Connecting ear; 504. Mounting screw. Detailed Implementation

[0030] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0031] Please see Figures 1-5 A fast-heat dissipation drum brake structure for a sweeper includes a back plate mechanism 1 and a shoe mechanism 4. The back plate mechanism 1 includes a back plate body 101, which has multiple mounting slots 102. A rotating connection part 103 is also integrally fixed on the back plate mechanism 1. The back plate body 101 is made of alloy cast iron. The back plate body 101 can be fixed to the vehicle body through the mounting slots 102. Two rotating pins are provided on the rotating connection part 103.

[0032] like Figure 1As shown, the front end of the backplate mechanism 1 is provided with a drum cover mechanism 2 for protecting components and providing a friction surface. The drum cover mechanism 2 includes a drum body 201 that is not fixedly mounted at the front end of the backplate body 101. The drum body 201 has a second mounting slot 202 and multiple heat dissipation holes 203. Multiple guide vanes 204 are integrally fixed on the drum body 201. Multiple air inlets 205 are also provided on the front wall of the drum body 201. A second guide vane 206 is integrally fixed on one side of the air inlet 205. The drum body 201 is also made of alloy cast iron. The drum body 201 can be fixed to the axle of the vehicle through the second mounting slot 202. The heat dissipation holes 203 can effectively increase the friction surface of the drum body. The heat dissipation area of ​​the drum body 201 is increased, and the heat inside the drum body 201 can be discharged through the heat dissipation hole 203. The guide vane 204 effectively increases the heat dissipation area of ​​the device. The direction of the guide vane 204 is the same as the direction of vehicle movement. When the vehicle moves forward, the airflow on the windward side will enter the drum body 201 through the heat dissipation hole 203 under the reverse flow effect of the guide vane 204, further improving the heat dissipation efficiency of the device. The air inlet 205 and the guide vane 206 have the same effect as the above, which can also effectively improve the heat dissipation area and internal air circulation of the device. In addition, the heat dissipation hole 203 and the air inlet 205 can also effectively reduce the weight of the drum body 201.

[0033] like Figures 2-4As shown, the backplate mechanism 1 is also equipped with a drive mechanism 3 for driving the shoe plate mechanism 4. The drive mechanism 3 includes a hydraulic push rod 301 fixedly mounted on the backplate body 101, and two connecting pieces 302 integrally fixed on the backplate body 101. A return spring 303 is welded onto the connecting piece 302. The hydraulic push rod 301 is connected to the vehicle's hydraulic braking system through a pipeline. When the operator depresses the brake pedal, the hydraulic braking system fills the hydraulic push rod 301 with hydraulic oil, causing the hydraulic push rod 301 to extend to both sides, thereby pushing the shoe plate mechanism 4 on both sides to make its friction part contact the inner wall of the drum 201, generating braking force. When the operator releases the brake pedal, the hydraulic push rod 301 returns to its original position, and the return spring 303 also drives the shoe plate mechanism 4 to return to its original position. The backplate mechanism 1 also rotates. Two shoe plate mechanisms 4 are provided. Each shoe plate mechanism 4 includes two shoe plate bodies 401 rotatably connected to a rotating connection part 103. A rotating connection hole 402 is provided on each shoe plate body 401. A connecting piece 403 is welded and fixed on each shoe plate body 401. Multiple heat sinks 404 are also integrally fixed on each shoe plate body 401. A screw hole post 405 is also integrally fixed on each shoe plate body 401. The shoe plate body 401 is rotatably connected to the rotating connection part 103 through the rotating connection hole 402. The connecting piece 403 is fixed to the other end of the return spring 303. The heat sinks 404 can effectively increase the heat dissipation area of ​​the shoe plate body 401 and also increase the strength of the shoe plate body 401, effectively preventing the deformation of the shoe plate body 401. The two ends of the screw hole post 405 are connected, and both ends of the post are provided with internal threads.

[0034] like Figure 2 and Figure 5 As shown, the shoe plate mechanism 4 is also screwed with a friction mechanism 5 for generating braking force. The friction mechanism 5 includes a mounting plate 501 screwed onto the shoe plate body 401. A friction lining 502 is bonded to the outside of the mounting plate 501. Multiple connecting ears 503 are integrally fixed on the mounting plate 501. A mounting screw 504 is provided on the inner side of the connecting ears 503. The mounting plate 501 can be snapped onto the shoe plate body 401. The friction lining 502 is a ceramic fiber friction lining 502, which has a high coefficient of friction and good heat resistance. The number and position of the connecting ears 503 are matched with the screw hole post 405. The mounting plate 501 and the friction lining 502 can be fixed onto the shoe plate body 401 by the mounting screw 504. When the friction lining 502 wears and ages, the operator can easily replace the mounting plate 501 and the friction lining 502 without replacing the entire shoe plate mechanism 4, thus reducing the maintenance cost of the device.

[0035] In use, the installer can fix the back plate mechanism 1 to the vehicle body, fix the drum cover mechanism 2 to the axle, and connect the drive mechanism 3 to the vehicle's hydraulic braking system through pipelines. When the user presses the brake pedal, the drive mechanism 3 will push the shoe plate mechanism 4, causing the friction mechanism 5 to squeeze the drum cover mechanism 2 to generate braking force. During braking and driving, the structures such as the heat dissipation hole 203, the first guide plate 204, the air inlet 205, the second guide plate 206, and the heat dissipation fin 404 can effectively increase the heat dissipation area of ​​the device and increase the internal airflow velocity, thereby achieving rapid heat dissipation. When the friction lining 502 wears out due to long-term use, the staff can replace the friction mechanism 5 separately.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A fast-heat dissipation drum brake structure for a sweeper, comprising a back plate mechanism (1) and a shoe mechanism (4), characterized in that: The front end of the back plate mechanism (1) is provided with a drum cover mechanism (2) for protecting the components and providing a friction surface. The back plate mechanism (1) is also equipped with a drive mechanism (3) for driving the shoe plate mechanism (4). Two shoe-shaped mechanisms (4) are also rotatably mounted on the back plate mechanism (1); The shoe mechanism (4) is also screwed with a friction mechanism (5) for generating braking force.

2. The rapid heat dissipation drum brake structure for a sweeper according to claim 1, characterized in that: The back plate mechanism (1) includes a back plate body (101), which has a plurality of mounting slots (102) and a rotating connection part (103) integrally fixed on the back plate mechanism (1).

3. The rapid heat dissipation drum brake structure for a sweeper according to claim 2, characterized in that: The drum cover mechanism (2) includes a drum body (201) at the front end of a non-fixed back plate body (101), the drum body (201) is provided with a second mounting slot (202), and the drum body (201) is also provided with a plurality of heat dissipation holes (203).

4. The rapid heat dissipation drum brake structure for a sweeper according to claim 3, characterized in that: Multiple guide vanes (204) are integrally fixed on the drum body (201), and multiple air inlets (205) are also provided on the front wall of the drum body (201). A guide vane (206) is integrally fixed on one side of the air inlet (205).

5. A rapid heat dissipation drum brake structure for a sweeper according to claim 2, characterized in that: The drive mechanism (3) includes a hydraulic push rod (301) fixedly installed on the back plate body (101). The drive mechanism (3) also includes two connecting pieces (302) integrally fixed on the back plate body (101). A return spring (303) is welded on the connecting piece (302).

6. The rapid heat dissipation drum brake structure for a sweeper according to claim 2, characterized in that: The hoof mechanism (4) includes two hoof bodies (401) rotatably connected to the rotating connection part (103). The hoof body (401) is provided with a rotating connection hole (402). A connecting piece (403) is welded and fixed on the hoof body (401). A plurality of heat sinks (404) are also integrally fixed on the hoof body (401). A screw hole post (405) is also integrally fixed on the hoof body (401).

7. A fast-heat dissipation drum brake structure for a sweeper according to claim 6, characterized in that: The friction mechanism (5) includes a mounting plate (501) fixed to the shoe body (401) with screws. A friction lining (502) is bonded to the outside of the mounting plate (501). Multiple connecting ears (503) are integrally fixed on the mounting plate (501). A mounting screw (504) is provided on the inner side of the connecting ear (503).

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