Detection device for drum brake of heavy truck

Abstract

The utility model belongs to the technical field of drum brakes, and particularly relates to a heavy truck drum brake detection device which comprises a device body, a mounting bin is arranged on the device body, a mounting plate is arranged in the mounting bin, and a brake drum is rotatably connected to the inner wall of the mounting bin through a bearing seat. According to the heavy truck drum brake detection device, the brake drum used for detecting the heavy truck drum brake, the water tank and the spray head are arranged, clear water in the water tank is guided into the mounting bin through the spray head, the water tank is arranged on the water tank, the water tank is arranged on the water tank, and the water tank is arranged on the water tank. According to the detection device for the drum brake of the heavy truck, a brake detection test is carried out on the drum brake in water, so that whether the drum brake can work normally or not in severe rainwater weather or under the condition that water enters the brake is simulated, detection data of the detection device for the drum brake of the heavy truck is more accurate, and the practicability of the detection device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drum brakes, in particular to a detection device for a heavy truck drum brake. Background Art

[0002] Heavy truck is the abbreviation of heavy truck; this is an authentic, traditional and informal name for heavy trucks and semi-trailer tractors, including various special vehicles (sprinklers, fire trucks, road cleaning trucks, tank trucks, mixer trucks, etc.) or dump trucks (earth-pulling trucks, all with lifts) that you see on the road. Heavy trucks generally use drum brakes for braking; drum brakes use a brake transmission mechanism to make the brake shoe press the brake friction pad against the inside of the brake drum, thereby generating braking force, and slowing down the wheels or stopping them in the shortest distance as needed to ensure driving safety and ensure that the heavy trucks are parked reliably and cannot slip automatically; to ensure that the drum brakes are qualified and normal, generally after the drum brakes are produced and assembled, they need to be tested for their performance and quality using testing devices. The current testing devices cannot simulate the use of drum brakes in actual environments, resulting in their test data not being able to reflect the normal use of drum brakes, thereby affecting the accuracy of the test data of the heavy truck drum brake testing device. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the utility model provides a detection device for a heavy truck drum brake, which solves the problem that the current detection device for a heavy truck drum brake cannot simulate the working environment that an actual drum brake will experience, thereby causing its detection data to be inaccurate.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] A detection device for a heavy-duty truck drum brake comprises a device body, wherein a mounting bin is provided on the device body, a mounting plate is provided in the mounting bin, a brake drum is rotatably connected to the inner wall of the mounting bin via a bearing seat, a braking device cooperating with the brake drum is provided on the inner wall of the mounting plate, a water tank is provided on the device body, a nozzle is provided on the inner wall of the mounting bin, the nozzle is through-connected to a water pump in the water tank via a conduit, a water outlet is provided on the bottom wall inside the mounting bin, the water outlet is through-connected to a water inlet provided on the water tank via a pipe groove, and a solenoid valve is provided at the water outlet of the mounting bin.

[0008] Furthermore, a heating ring is provided on the inner wall of the installation chamber, and the brake drum is located on the inner side of the heating ring.

[0009] Furthermore, an evaporator is provided on the inner wall of the device body, a condenser is provided on the device body, a circulatory heat exchange tube is provided between the evaporator and the condenser, and the device body is rotatably connected to a cover door at the installation bin opening through a bearing seat, and the cover door is adapted to the installation bin opening.

[0010] Furthermore, a through-type observation port is provided on an inner wall of one side of the device body located in the installation bin, and a transparent plate is provided at the notch of the observation port.

[0011] Furthermore, a threaded rod is rotatably connected to the inner wall of the installation bin through a bearing seat, a rotating rod is fixedly connected to the movable end of the threaded rod, the rotating rod is rotatably connected to the through hole opened on the device body through the bearing seat, and the installation plate is threadedly sleeved on the outer side of the threaded rod through the threaded hole opened, and the installation plate is slidably connected to the inner wall of the installation bin

[0012] Furthermore, the device body is provided with a servo motor for driving the brake drum to rotate, and a rotation speed detector for detecting the rotation speed of the brake drum, and the device body is provided with a processor.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a detection device for heavy truck drum brakes, which has the following beneficial effects:

[0015] 1. The utility model is provided with a brake drum, a water tank and a nozzle for detecting the drum brake of a heavy truck. Clean water in the water tank is introduced into the installation chamber through the nozzle, so that the drum brake is subjected to a brake detection test in water, thereby simulating whether the drum brake can work normally in severe rainy weather or when water enters the brake, thereby making the detection data of the detection device of the drum brake of the heavy truck more accurate and improving the practicability of the detection device.

[0016] 2. The utility model is provided with a heating ring for detecting the heavy truck drum brake. By heating the brake drum, it is detected whether the drum brake can work normally in high temperature weather or when the tire is overheated, thereby effectively improving the practicality and detection accuracy of the heavy truck drum brake detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model in which the whole is closed;

[0018] Figure 2 It is a side-view stereoscopic schematic diagram of the utility model as a whole;

[0019] Figure 3It is a front three-dimensional schematic diagram of the utility model as a whole.

[0020] In the figure: 1. Device body; 2. Water tank; 3. Condenser; 4. Cover door; 5. Threaded rod; 6. Mounting compartment; 7. Transparent plate; 8. Brake drum; 9. Heating coil; 10. Processor; 11. Servo motor; 12. Nozzle; 13. Evaporator; 14. Braking device; 15. Speed ​​detector; 16. Mounting plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example

[0023] like Figures 1 to 3 As shown, a detection device for a heavy-duty drum brake proposed in an embodiment of the utility model comprises a device body 1, a mounting chamber 6 is arranged on the device body 1, a mounting plate 16 is arranged in the mounting chamber 6, a brake drum 8 is rotatably connected to the inner wall of the mounting chamber 6 through a bearing seat, a brake device 14 cooperating with the brake drum 8 is arranged on the inner wall of the mounting plate 16, a water tank 2 is arranged on the device body 1, a nozzle 12 is arranged on the inner wall of the mounting chamber 6, the nozzle 12 is connected to the water pump in the water tank 2 through a conduit, a water outlet is arranged on the bottom wall inside the mounting chamber 6, the water outlet is connected to the water inlet arranged on the water tank 2 through a pipe groove, and a solenoid valve is arranged at the water outlet of the mounting chamber 6;

[0024] The braking device 14 is a drum brake. The brake pad of the braking device 14 is set on the inner side of the brake drum 8. Then the brake drum 8 is rotated and the brake device 14 is used to brake the brake drum 8. Before the braking test, the nozzle 12 is needed to inject the water in the water tank 2 into the installation chamber 6. After the test is completed, the water is discharged through the water outlet. The solenoid valve is a prior art structure. Its structural form and usage are not described in detail. The solenoid valve is used to switch the water outlet.

[0025] like Figure 2 As shown, in some embodiments, a heating ring 9 is provided on the inner wall of the installation chamber 6, and the brake drum 8 is located inside the heating ring 9;

[0026] The heating coil 9 is electrically connected to the processor 10 , and the processor 10 controls the start and stop of the heating coil 9 , so that the brake drum 8 is heated by the heating coil 9 .

[0027] like Figure 2As shown, in some embodiments, the device body 1 is located on the inner wall of the installation bin 6 and is provided with an evaporator 13, the device body 1 is provided with a condenser 3, a circulatory heat exchange tube is provided between the evaporator 13 and the condenser 3, the device body 1 is located at the opening of the installation bin 6 and is rotatably connected to a cover door 4 through a bearing seat, and the cover door 4 is adapted to the opening of the installation bin 6;

[0028] The cover door 4 is used to open or close the opening of the installation chamber 6. The evaporator 13 and the condenser 3 are existing technical structures, and their structural forms and usage methods are not described in detail. The evaporator 13 and the condenser 3 cooperate with each other to cool the installation chamber 6.

[0029] like Figure 1 As shown, in some embodiments, a through-type observation port is provided on the inner wall of one side of the device body 1 located at the installation bin 6, and a transparent plate 7 is provided at the notch of the observation port;

[0030] The transparent plate 7 is used to seal the observation port. The transparent plate 7 is a transparent structure, and the internal situation of the installation chamber 6 can be observed through the transparent plate 7.

[0031] like Figure 2 As shown, in some embodiments, a threaded rod 5 is rotatably connected to the inner wall of the installation bin 6 through a bearing seat, a rotating rod is fixedly connected to the movable end of the threaded rod 5, the rotating rod is rotatably connected to the through hole opened on the device body 1 through the bearing seat, and the installation plate 16 is threadedly sleeved on the outer side of the threaded rod 5 through the threaded hole opened, and the installation plate 16 is slidably connected to the inner wall of the installation bin 6;

[0032] By rotating the rotating rod on the threaded rod 5 and then using the threaded rod 5 to drive the mounting plate 16 to slide on the inner wall of the mounting chamber 6, the brake device 14 can slide into the brake drum 8, or the brake device 14 can be separated from the brake drum 8.

[0033] like Figure 3 As shown, in some embodiments, the device body 1 is provided with a servo motor 11 for driving the brake drum 8 to rotate, and a speed detector 15 for detecting the speed of the brake drum 8 is provided, and the device body 1 is provided with a processor 10;

[0034] The servo motor 11 and the speed detector 15 are both electrically connected to the processor 10. The servo motor 11 is used to drive the brake drum 8 to rotate, and the speed detector 15 is used to detect the speed of the brake drum 8 and transmit the detection data to the processor 10. After being processed by the processor 10, the numerical value is displayed on the display screen on the processor 10. The processor 10 is electrically connected to the power supply.

[0035] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heavy truck drum brake detection device, comprising a device body (1), characterized in that: The device body (1) is provided with a mounting chamber (6), a mounting plate (16) is provided in the mounting chamber (6), a brake drum (8) is rotatably connected to the inner wall of the mounting chamber (6) via a bearing seat, a brake device (14) cooperating with the brake drum (8) is provided on the inner wall of the mounting plate (16), a water tank (2) is provided on the device body (1), a nozzle (12) is provided on the inner wall of the mounting chamber (6), the nozzle (12) is connected to a water pump in the water tank (2) via a conduit, a water outlet is provided on the bottom wall inside the mounting chamber (6), the water outlet is connected to a water inlet provided on the water tank (2) via a pipe groove, and a solenoid valve is provided at the water outlet of the mounting chamber (6).

2. The detection device for a heavy truck drum brake according to claim 1, characterized in that: A heating ring (9) is arranged on the inner wall of the installation chamber (6), and the brake drum (8) is located on the inner side of the heating ring (9).

3. The detection device for a heavy truck drum brake according to claim 1, characterized in that: The device body (1) is located on the inner wall of the installation bin (6) and is provided with an evaporator (13); the device body (1) is provided with a condenser (3); a circulatory heat exchange tube is provided between the evaporator (13) and the condenser (3); the device body (1) is located at the opening of the installation bin (6) and is rotatably connected to a cover door (4) via a bearing seat; the cover door (4) is adapted to the opening of the installation bin (6).

4. The detection device for a heavy truck drum brake according to claim 1, characterized in that: The device body (1) is provided with a through-type observation port on an inner wall of one side of the installation bin (6), and a transparent plate (7) is provided at the notch of the observation port.

5. The detection device for a heavy truck drum brake according to claim 1, characterized in that: A threaded rod (5) is rotatably connected to the inner wall of the installation bin (6) via a bearing seat, a rotating rod is fixedly connected to the movable end of the threaded rod (5), and the rotating rod is rotatably connected to a through hole opened on the device body (1) via the bearing seat, and the installation plate (16) is threadedly sleeved on the outer side of the threaded rod (5) through the threaded hole opened, and the installation plate (16) is slidably connected to the inner wall of the installation bin (6).

6. The detection device for a heavy truck drum brake according to claim 1, characterized in that: The device body (1) is provided with a servo motor (11) for driving the brake drum (8) to rotate, and a rotation speed detector (15) for detecting the rotation speed of the brake drum (8). The device body (1) is provided with a processor (10).

Images