Friction detection device for drum type friction plate

Abstract

The utility model discloses a friction detection device of a drum type friction plate, which comprises a mounting seat, a supporting seat is fixedly mounted at the bottom of the mounting seat, a box body is fixedly mounted at the top of the mounting seat, a supporting column is fixedly sleeved in the box body, a supporting bearing is sleeved on the outer side of the supporting column, and the supporting bearing is sleeved on the outer side of the supporting column. A transmission fluted disc is fixedly mounted at the bottom end of the supporting column, a driving mechanism is in transmission engagement with the outer side of the transmission fluted disc, a supporting disc is fixedly mounted at the top of the supporting column, and a supporting ring is fixedly mounted at the bottom of an inner cavity of the box body. Through the arrangement of the semiconductor cooler, the refrigeration end and the heat dissipation end are separated by the semiconductor cooler, so that cold air and hot air are separated, entering of different guide flow is facilitated, cold air and hot air are enabled to be respectively located in the box body, different environments are conveniently switched for use, the utilization effect is improved, the structures do not influence each other, and auxiliary detection is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of friction detection of friction plates, in particular to a friction detection device for drum-type friction plates. Background Art

[0002] Drum brakes: Drum brakes, also known as block brakes, brake by pressing brake pads against the brake wheel. Drum brakes are an early braking system design. The brake drum design was used on horse-drawn carriages as early as 1902, but it wasn't widely adopted in the automotive industry until around 1920. The mainstream drum brake is the inward-expanding type, with the brake pads (brake shoes) located inside the brake wheel. When braking, the pads expand outward, rubbing against the inside of the brake wheel to achieve the desired effect.

[0003] During the production process of drum friction pads, sampling inspection of the friction pads is required to monitor the braking quality. However, in the existing friction detection device, debris will be splashed during the friction detection process, thus threatening the working environment. In addition, the existing friction detection is generally only a friction detection, without simulating the impact of different temperature environments on the braking of the friction pads. It is impossible to measure the impact of temperature on the braking life and braking distance of the friction pads. Based on this, a friction detection device for drum friction pads is proposed. Utility Model Content

[0004] The purpose of the present utility model is to provide a friction detection device for a drum friction plate to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a friction detection device for a drum-type friction plate, comprising a mounting seat, a support seat fixedly mounted on the bottom of the mounting seat, a box body fixedly mounted on the top of the mounting seat, a support column fixedly sleeved on the inside of the box body, a support bearing sleeved on the outside of the support column, a transmission gear disk fixedly mounted on the bottom of the support column, a driving mechanism for transmission engagement on the outside of the transmission gear disk, a support disk fixedly mounted on the top of the support column, a support ring fixedly mounted on the bottom of the box body cavity, a plurality of support balls movably mounted on the top of the support ring, a bolt mounting mechanism fixedly mounted on the top of the support disk, a telescopic mechanism fixedly mounted on the top of the box body cavity, a friction detection mechanism mounted on the bottom end of the telescopic mechanism, a sealed box door movably mounted on the front of the box body through a hinge, and a fixedly mounted There is a water pump, the output end of the water pump is connected to a water pipe, the other end of the water pipe is connected to an atomizing nozzle, two temperature control boxes are fixedly installed on the top of the box, one side of the two temperature control boxes are connected to a U-shaped connecting pipe, the inside of the U-shaped connecting pipe is equipped with a first solenoid valve, the back of the two temperature control boxes are connected to an exhaust pipe, the outer end of the exhaust pipe is movably equipped with a sealing cover, the end of the two temperature control boxes away from the U-shaped connecting pipe is connected to a three-way guide pipe, the inside of the input end of the three-way guide pipe is equipped with a second solenoid valve, the end of the three-way guide pipe away from the temperature control box is connected to a connecting box, the inside of the connecting box is movably equipped with a fan, semiconductor refrigerators are fixedly installed on opposite sides of the two temperature control boxes, a number of heat dissipation strips are fixedly installed on both ends of the semiconductor refrigerator, a control panel is installed on the outside of the box, and one side of the box is connected to a drain pipe.

[0006] Preferably, the driving mechanism is fixedly mounted on the top of the support seat, and the support bearing is fixedly sleeved on the mounting seat and the interior of the box.

[0007] Preferably, the support ring is sleeved on the outside of the support column and the support bearing, the support ring is located at the bottom of the support plate, the top of the support ball is in rolling contact with the top of the support plate, and the support balls are evenly distributed on the opposite sides of the support ring and the support plate.

[0008] Preferably, the water pipe is fixedly passed through the box body and extends to the interior of the box body, and the position of the atomizing nozzle corresponds to the position of the support plate.

[0009] Preferably, the end of the U-shaped connecting tube away from the temperature control box is connected to the interior of the box, and the two temperature control boxes are linearly stacked and fixedly distributed. The connecting box is fixedly installed on the outside of the box, and the connecting box is connected to the interior of the box. The output direction of the fan corresponds to the interior of the box.

[0010] Preferably, the semiconductor refrigerator is fixedly installed inside the temperature control box, the heat dissipation end and the cooling end of the semiconductor refrigerator are respectively located inside the two temperature control boxes, and the heat dissipation strips are linearly and evenly distributed inside the temperature control box.

[0011] Preferably, a temperature and humidity sensor is provided inside the box.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: when the structure is in use, the user fixes the drum friction plate through the bolt mounting mechanism, and simulates the drum-type external closed environment in the box body, detects the physical properties of the drum friction plate when the environment changes, and detects the contact friction of the outer side of the drum friction plate through the friction detection mechanism. During the detection, the driving mechanism drives the transmission gear disc to rotate, thereby driving the support disc to rotate through the support column to simulate the friction process. When it is necessary to simulate a water leakage environment, the water pump input end is connected to an external water source. After starting, the water flows through the water pipe into the atomizing nozzle, and is sprayed on the detection position of the drum friction plate through the atomizing nozzle. When performing air leakage detection, the first solenoid valve, the second solenoid valve, the fan and the exhaust pipe are opened, and the air flow passes through the fan. Power is blown to the drum friction plate detection position, which is convenient for simulating the air leakage of drum brakes during driving. When cold air simulation is needed, the first solenoid valve at the bottom of the U-shaped connecting pipe is opened, and the exhaust pipe at the back of the top temperature control box is opened. At this time, the semiconductor refrigerator is started, and the bottom cooling is conducted through the heat dissipation strip, and the second solenoid valve inside the three-way guide pipe connected to the bottom temperature control box is opened. At this time, the airflow enters the temperature control box through the U-shaped connecting pipe, and the cold air is guided through the three-way guide pipe into the connecting box and blown into the box through the fan. Cold air is blown to the drum friction plate detection position, while the hot air simulation is performed in the opposite way, which is convenient for simulating different environmental tests, increasing the diversity of tests, improving the accuracy of tests, and facilitating production assistance and improving quality.

[0013] By setting up a semiconductor refrigerator, the semiconductor refrigerator separates the cooling end and the heat dissipation end into separate spaces, which promotes the separation of cold air and hot air, facilitates the entry of different diversions, and promotes the cold and hot air to be separately inside the box, which is convenient for switching to different environments, increases the utilization effect, and makes the structures not affect each other, which is convenient for auxiliary detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front three-dimensional appearance structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the three-dimensional appearance structure of the utility model when viewed from the rear or upward direction.

[0016] Figure 3 It is a front sectional structural schematic diagram of the utility model.

[0017] Figure 4It is a schematic diagram of the right side sectional structure of the utility model.

[0018] Figure 5 For this utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0019] In the figure: 1. Mounting seat; 2. Support ball; 3. Support seat; 4. Drain pipe; 5. Box body; 6. Control panel; 7. Sealed box door; 8. Temperature control box; 9. Water pump; 10. Support bearing; 11. U-shaped connecting pipe; 12. First solenoid valve; 13. Three-way guide pipe; 14. Second solenoid valve; 15. Water pipe; 16. Exhaust pipe; 17. Sealing cover; 18. Transmission gear plate; 19. Driving mechanism; 20. Support ring; 21. Connecting box; 22. Semiconductor refrigerator; 23. Heat dissipation strip; 24. Fan; 25. Telescopic mechanism; 26. Friction detection mechanism; 27. Support plate; 28. Support column; 29. ​​Atomizing nozzle; 30. Bolt mounting mechanism. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 5The utility model provides a technical solution: a friction detection device for a drum friction plate, comprising a mounting base 1, a support base 3 fixedly mounted on the bottom of the mounting base 1, a box body 5 fixedly mounted on the top of the mounting base 1, a support column 28 fixedly sleeved inside the box body 5, a support bearing 10 sleeved on the outer side of the support column 28, a transmission gear disc 18 fixedly mounted on the bottom end of the support column 28, a driving mechanism 19 engaged with the outer side of the transmission gear disc 18, a support disc 27 fixedly mounted on the top of the support column 28, a support ring 20 fixedly mounted on the bottom of the inner cavity of the box body 5, a plurality of support balls 2 movably mounted inside the top end of the support ring 20, a bolt mounting mechanism 30 fixedly mounted on the top of the support disc 27, a telescopic mechanism 25 fixedly mounted on the top of the inner cavity of the box body 5, a friction detection mechanism 26 mounted on the bottom end of the telescopic mechanism 25, a sealed box door 7 movably mounted on the front side of the box body 5 through a hinge, a water pump 9 fixedly mounted on the top of the box body 5, the water pump The output end of 9 is connected to a water pipe 15, and the other end of the water pipe 15 is connected to an atomizing nozzle 29. Two temperature control boxes 8 are fixedly installed on the top of the box body 5. One side of the two temperature control boxes 8 are connected to a U-shaped connecting pipe 11, and a first solenoid valve 12 is installed inside the U-shaped connecting pipe 11. The back of the two temperature control boxes 8 are connected to an exhaust pipe 16, and a sealing cover 17 is movably installed on the outer end of the exhaust pipe 16. The two temperature control boxes 8 are connected to a three-way guide pipe 13 at one end away from the U-shaped connecting pipe 11, and a second solenoid valve 14 is installed inside the input end of the three-way guide pipe 13. The end of the three-way guide pipe 13 away from the temperature control box 8 is connected to a connecting box 21, and a fan 24 is movably installed inside the connecting box 21. Semiconductor refrigerators 22 are fixedly installed on the opposite sides of the two temperature control boxes 8, and a number of heat dissipation strips 23 are fixedly installed at both ends of the semiconductor refrigerator 22. A control panel 6 is installed on the outside of the box body 5, and a drain pipe 4 is connected to one side of the box body 5.

[0022] The working principle of the above technical solution is: when in use, the user fixes the drum friction plate through the bolt mounting mechanism 30, and simulates the drum-type external closed environment in the box 5, detects the physical properties of the drum friction plate when the environment changes, and detects the contact friction of the outer side of the drum friction plate through the friction detection mechanism 26. During the detection, the driving mechanism 19 drives the transmission gear plate 18 to rotate, thereby driving the support plate 27 to rotate through the support column 28 to simulate the friction process. When it is necessary to simulate a water leakage environment, the input end of the water pump 9 is connected to an external water source. After starting, the water flows through the water pipe 15 into the atomizing nozzle 29, and is sprayed on the detection position of the drum friction plate through the atomizing nozzle 29. When performing air leakage detection, the first solenoid valve 12, the second solenoid valve 14, the fan 24 and the exhaust pipe 16 are opened, and the air flow is blown by the power of the fan 24. To the drum friction plate detection position, it is convenient to simulate the situation of drum brake air leakage during driving. When cold air simulation is needed, open the first solenoid valve 12 at the bottom of the U-shaped connecting pipe 11, and open the exhaust pipe 16 on the back of the top temperature control box 8. At this time, the semiconductor refrigerator 22 is started, and the bottom cooling is conducted through the heat dissipation strip 23, and the second solenoid valve 14 inside the three-way guide pipe 13 connected to the bottom temperature control box 8 is opened. At this time, the air flow enters the temperature control box 8 through the U-shaped connecting pipe 11, and the cold air is guided through the three-way guide pipe 13 into the connecting box 21, and is blown into the interior of the box body 5 through the fan 24. Cold air is blown at the drum friction plate detection position, and the hot air simulation is the opposite operation, which is convenient for simulating different environmental detections, increasing the diversity of detection, improving the accuracy of detection, facilitating auxiliary production, and improving quality.

[0023] In another embodiment, Figures 1-4 As shown, the driving mechanism 19 is fixedly mounted on the top of the support seat 3 , and the support bearing 10 is fixedly sleeved inside the mounting seat 1 and the box body 5 .

[0024] After the driving mechanism 19 is fixed, it is convenient to drive the transmission gear plate 18 to rotate. The driving mechanism 19 is a motor and a gear at the output end of the motor, which is convenient for transmission. The support bearing 10 provides support and stability for the support column 28.

[0025] In another embodiment, Figure 3-Figure 5 As shown, the support ring 20 is sleeved on the outside of the support column 28 and the support bearing 10, the support ring 20 is located at the bottom of the support plate 27, the top of the support ball 2 is in rolling contact with the top of the support plate 27, and the support balls 2 are evenly distributed on the opposite sides of the support ring 20 and the support plate 27 in a circular shape.

[0026] The support ring 20 provides support for the bottom of the support plate 27 through the support balls 2, so as to increase the rotational stability of the support plate 27 and increase the structural stress strength.

[0027] In another embodiment, Figures 1-4As shown, the water delivery pipe 15 is fixedly passed through the box body 5 and extends to the interior of the box body 5 , and the position of the atomizing nozzle 29 corresponds to the position of the support plate 27 .

[0028] The water pipe 15 inputs the water flow into the interior of the atomizing nozzle 29, and the water is atomized and sprayed at the detection position through the atomizing nozzle 29, which facilitates the operation.

[0029] In another embodiment, Figures 1-4 As shown, the end of the U-shaped connecting tube 11 away from the temperature control box 8 is connected to the interior of the box 5, and the two temperature control boxes 8 are linearly stacked and fixedly distributed. The connecting box 21 is fixedly installed on the outside of the box 5, and the connecting box 21 is connected to the interior of the box 5, and the output direction of the fan 24 corresponds to the interior of the box 5.

[0030] The U-shaped connecting pipe 11 is connected to the inside of the box 5 to facilitate the circulation of air flow, save resources, and promote the circulation of cold air and hot air in the fixed pipeline. The stacked distribution of the temperature control box 8 is convenient for the semiconductor refrigerator 22 to be fixed and the two temperature control boxes 8 are connected to facilitate structural stability. The connecting box 21 guides the air flow into the inside of the box 5 and outputs the air flow through the fan 24 to apply power for easy operation.

[0031] In another embodiment, Figures 1-4 As shown, the semiconductor cooler 22 is fixedly passed through the interior of the temperature control box 8 , the heat dissipation end and the cooling end of the semiconductor cooler 22 are respectively located inside the two temperature control boxes 8 , and the heat dissipation strips 23 are linearly and evenly distributed inside the temperature control box 8 .

[0032] By setting up a semiconductor refrigerator 22, the semiconductor refrigerator 22 separates the cooling end and the heat dissipation end into separate spaces, thereby promoting the separation of cold air and hot air, facilitating the entry of different diversions, and promoting the cold and hot air to be separately inside the box 5, making it easy to switch to different environments for use, increasing the utilization effect, and making the structures not affect each other, which is convenient for auxiliary detection.

[0033] In another embodiment, Figure 1 and Figure 4 As shown, a temperature and humidity sensor is provided inside the box 5.

[0034] The input end of the control panel 6 is electrically connected to the output end of the temperature and humidity sensor through a wire, and the output end of the control panel 6 is electrically connected to the input ends of the water pump 9, the first solenoid valve 12, the second solenoid valve 14, the drive mechanism 19, the semiconductor cooler 22 and the fan 24 through a wire for easy control. A programmable PCL controller component is provided inside the control panel 6 for auxiliary detection.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A friction detection device for a drum friction plate, comprising a mounting seat (1), characterized in that: The bottom of the mounting seat (1) is fixedly mounted with a support seat (3), the top of the mounting seat (1) is fixedly mounted with a box body (5), the interior of the box body (5) is fixedly sleeved with a support column (28), the outer side of the support column (28) is sleeved with a support bearing (10), the bottom end of the support column (28) is fixedly mounted with a transmission gear disc (18), the outer side of the transmission gear disc (18) is transmission-engaged with a driving mechanism (19), the top of the support column (28) is fixedly mounted with a support disc (27), and the bottom of the inner cavity of the box body (5) is fixedly mounted with a support column (28). A ring (20) is provided, a plurality of supporting balls (2) are movably mounted inside the top of the support ring (20), a bolt mounting mechanism (30) is fixedly mounted on the top of the support plate (27), a telescopic mechanism (25) is fixedly mounted on the top of the inner cavity of the box body (5), a friction detection mechanism (26) is mounted on the bottom end of the telescopic mechanism (25), a sealed box door (7) is movably mounted on the front of the box body (5) through a hinge, a water pump (9) is fixedly mounted on the top of the box body (5), the output end of the water pump (9) is connected to a water pipe (15), and the water pipe (15) is connected to the output end of the water pump (9). The other end of the water pipe (15) is connected to an atomizing nozzle (29), two temperature control boxes (8) are fixedly installed on the top of the box body (5), one side of the two temperature control boxes (8) is connected to a U-shaped connecting pipe (11), the interior of the U-shaped connecting pipe (11) is installed with a first solenoid valve (12), the back of the two temperature control boxes (8) is connected to an exhaust pipe (16), the outer end of the exhaust pipe (16) is movably installed with a sealing cover (17), and the ends of the two temperature control boxes (8) away from the U-shaped connecting pipe (11) are connected to a three-way guide pipe (13), A second solenoid valve (14) is installed inside the input end of each of the three-way flow guide tubes (13); one end of the three-way flow guide tube (13) away from the temperature control box (8) is connected to a connecting box (21); a fan (24) is movably installed inside the connecting box (21); semiconductor refrigerators (22) are fixedly installed on opposite sides of the two temperature control boxes (8); a plurality of heat dissipation strips (23) are fixedly installed on both ends of the semiconductor refrigerators (22); a control panel (6) is installed on the outside of the box body (5); and a drain pipe (4) is connected to one side of the box body (5).

2. The friction detection device for a drum friction plate according to claim 1, characterized in that: The driving mechanism (19) is fixedly mounted on the top of the support seat (3), and the support bearing (10) is fixedly sleeved inside the mounting seat (1) and the box body (5).

3. The friction detection device for a drum friction plate according to claim 1, characterized in that: The support ring (20) is sleeved on the outer sides of the support column (28) and the support bearing (10), the support ring (20) is located at the bottom of the support disk (27), the top of the support ball (2) is in rolling contact with the top of the support disk (27), and the support ball (2) is evenly distributed on the opposite sides of the support ring (20) and the support disk (27).

4. The friction detection device for a drum friction plate according to claim 1, characterized in that: The water delivery pipe (15) is fixedly passed through the box (5) and extends to the interior of the box (5). The position of the atomizing nozzle (29) corresponds to the position of the support plate (27).

5. The friction detection device for a drum friction plate according to claim 1, characterized in that: One end of the U-shaped connecting pipe (11) away from the temperature control box (8) is connected to the interior of the box (5), and the two temperature control boxes (8) are linearly stacked and fixedly distributed. The connecting box (21) is fixedly installed on the outside of the box (5), and the connecting box (21) is connected to the interior of the box (5). The output direction of the fan (24) corresponds to the interior of the box (5).

6. The friction detection device for a drum friction plate according to claim 1, characterized in that: The semiconductor refrigerator (22) is fixedly inserted into the temperature control box (8), the heat dissipation end and the cooling end of the semiconductor refrigerator (22) are respectively located inside the two temperature control boxes (8), and the heat dissipation strips (23) are linearly and evenly distributed inside the temperature control box (8).

7. The friction detection device for a drum friction plate according to claim 1, characterized in that: A temperature and humidity sensor is provided inside the box (5).

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