A wear test device for wet multi-plate brake friction plates

Abstract

The utility model relates to wear -resisting test device technical field, concretely is a kind of wet multi-plate brake friction plate's wear -resisting test device, including base, the both sides middle part of base outer surface are rotatably penetrated and inserted and are equipped with adjusting screw rod, the outer surface spiral movable sleeve of one end of adjusting screw rod between being close is equipped with adjusting screw sleeve, the outer surface spiral movable sleeve of adjusting screw sleeve between being close is equipped with friction ring, the upper surface of one end of adjusting screw sleeve between being far away is fixedly installed with positioning lug, the both sides upper portion of base outer surface are fixedly installed with positioning rod, positioning lug movable sleeve is equipped in the outer surface of positioning rod, the middle part of base upper surface is fixedly installed with fixed base. The utility model can carry out friction test to the double side of friction plate simultaneously, and the change of wear position is presented in the testing process, it is favorable to improve testing efficiency while ensuring test accuracy.

Description

Technical Field

[0001] This utility model relates to the technical field of wear resistance testing devices, and more specifically, to a wear resistance testing device for wet multi-disc brake friction pads. Background Technology

[0002] A wet multi-disc brake is a device that achieves braking through the synergistic action of hydraulic oil and friction materials. It is mainly used in automobiles, construction machinery and other fields. In the production process of wet multi-disc brakes, in order to evaluate their performance stability and service life in long-term use and to ensure the safe and reliable operation of the equipment, it is necessary to conduct wear resistance tests on the friction pads of the wet multi-disc brake through a testing device.

[0003] Existing testing equipment requires periodically measuring the change in wear mark position using a displacement sensor during wear resistance testing of friction plates. In this case, the test position of the friction plate must be fixed, resulting in only one side of the friction plate being tested during the test, while the other side of the friction plate needs to be fixed in place. Since both sides of the friction plate are subjected to friction simultaneously during operation, it is difficult to accurately evaluate the performance of the friction plate when only one side is tested, which affects the accuracy of the test.

[0004] Based on this, a wear resistance testing device for wet multi-disc brake friction pads is proposed. Summary of the Invention

[0005] The main objective of this invention is to provide a wear resistance testing device for wet multi-disc brake friction pads to overcome the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides a wear resistance testing device for wet multi-disc brake friction pads, including a base. Adjusting screws are rotatably inserted and installed in the middle of both sides of the outer surface of the base. Adjusting sleeves are spirally fitted onto the outer surface of the adjacent ends of the adjusting screws. Friction rings are fixedly installed at the adjacent ends of the adjusting sleeves. Positioning ears are fixedly installed on the upper surface of the distant ends of the adjusting sleeves. Positioning rods are fixedly installed on the upper parts of both sides of the outer surface of the base, and the positioning ears are movably fitted onto the outer surface of the positioning rods. A fixed seat is fixedly installed in the middle of the upper surface of the base. Lower fixed rings are fixedly installed on the lower parts of both sides of the outer surface of the fixed seat. An upper fixed ring is movably hinged to the rear end of the upper surface of the lower fixed ring. A bracket is fixedly installed on the upper surface of the upper fixed ring. A transmission gear is rotatably installed on the side of the brackets that are close to each other. A motor is fixedly installed on the side of the brackets that are far apart from each other. The output end of the motor is fixedly connected to the transmission gear. An auxiliary wheel is rotatably installed on the inner surface of the fixed seat.

[0007] As a further improvement of this utility model, a driven disc is fixedly installed at the opposite ends of the adjusting screws, a limit port is opened in the middle of the upper and lower surfaces of the friction ring, and a scale line is provided on the outer surface of the positioning rod.

[0008] As a further improvement of this utility model, a dual-axis motor is fixedly installed in the middle of the lower surface of the base, and a drive disc is fixedly installed on both output ends of the dual-axis motor. A transmission belt is sleeved and installed on the outer surfaces of the drive disc and the driven disc together.

[0009] As a further improvement of this utility model, a limiting piece matching the limiting opening is fixedly provided in the middle of the upper surface of the lower fixing ring.

[0010] As a further improvement of this utility model, an opening is provided in the middle of the upper surface of the fixed base, a number of limiting teeth are fixedly provided on the inner ring surface of the auxiliary wheel, a number of meshing teeth are fixedly provided in the middle of the outer ring surface of the auxiliary wheel, the meshing teeth are in meshing contact with the transmission gear, and a friction plate is installed on the inner surface of the auxiliary wheel by limiting and locking through the limiting teeth.

[0011] The beneficial effects of this utility model are: This invention can simultaneously perform friction tests on both sides of the friction plate and present the changes in the wear position during the test, which helps to improve testing efficiency while ensuring testing accuracy, thereby accurately evaluating the performance of the friction plate. Attached Figure Description

[0012] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings: Figure 1 This is a front three-dimensional structural diagram of the present invention; Figure 2 This is a bottom view of the present invention; Figure 3 This is a schematic diagram of the unfolded upper fixing ring structure of this utility model; Figure 4 This is a schematic diagram of the friction ring structure of this utility model in operation; Figure 5 This is a schematic diagram of the base structure of this utility model. Figure 6 This is a schematic diagram showing the disassembled structure of the fixing base of this utility model; Figure 7 This is a schematic diagram showing the disassembled auxiliary wheel structure of this utility model.

[0013] In the diagram: 1. Base; 101. Adjusting screw; 102. Adjusting sleeve; 103. Friction ring; 104. Limiting port; 105. Positioning ear; 106. Positioning rod; 107. Driven disc; 2. Dual-axis motor; 201. Driving disc; 202. Transmission belt; 3. Fixed seat; 301. Lower fixed ring; 302. Limiting plate; 303. Upper fixed ring; 304. Bracket; 305. Transmission gear; 306. Motor; 4. Auxiliary wheel; 401. Limiting tooth; 402. Meshing tooth; 5. Friction plate. Detailed Implementation

[0014] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0015] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0016] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of the utility model described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0017] To make the objectives and advantages of this utility model clearer, the utility model will be further described below with reference to the embodiments; it should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0018] Please see Figures 1-7As shown, a wear resistance testing device for wet multi-disc brake friction pads includes a base 1. Adjusting screws 101 are rotatably inserted and installed in the middle of both sides of the outer surface of the base 1. Driven discs 107 are fixedly installed at the far ends of the adjusting screws 101. Adjusting sleeves 102 are spirally and movably sleeved on the outer surface of the near ends of the adjusting screws 101. Friction rings 103 are fixedly installed at the near ends of the adjusting sleeves 102. Limiting holes 104 are opened in the middle of the upper and lower surfaces of the friction rings 103. Positioning ears 105 are fixedly installed on the upper surface of the far ends of the adjusting sleeves 102. Positioning rods 106 are fixedly installed on the upper parts of both sides of the outer surface of the base 1. The outer surface of the positioning rods 106 is provided with scale lines. The positioning ears 105 are movably sleeved on the outer surface of the positioning rods 106. It should be noted that by rotating the adjusting screw 101 clockwise and counterclockwise, the adjusting sleeve 102 can be controlled to move laterally back and forth along it. During the movement of the adjusting sleeve 102, the friction ring 103 will be moved synchronously, thereby controlling the friction ring 103 to move closer to and away from the friction plate 5. When the friction ring 103 approaches and contacts the friction plate 5, the friction test of the friction plate 5 can be performed. When the friction ring 103 moves away from the friction plate 5, the friction plate 5 to be tested can be replaced. By the limiting port 104 opened on the friction ring 103 and the limiting piece 302 engaging and matching each other, the friction ring 103 can be limited to prevent it from rotating during the movement with the adjusting sleeve 102, thereby ensuring the stability of its friction test on the friction plate 5. When the adjusting sleeve 102 moves laterally back and forth along the adjusting screw 101, the positioning ear 105 will slide along the body of the positioning rod 106. When the adjusting sleeve 102 moves laterally and controls the friction ring 103 to contact the friction plate 5, the position of the positioning ear 105 on the positioning rod 106 is the test base point. During the test, as the friction plate 5 rubs, the friction ring 103 will be continuously in close contact with the friction plate 5 under the cooperation of the adjusting sleeve 102 and the adjusting screw 101. At this time, the movement distance between the positioning ear 105 and the base point on the positioning rod 106 is the wear degree of the friction plate 5.

[0019] A dual-axis motor 2 is fixedly installed in the middle of the lower surface of the base 1. Both output ends of the dual-axis motor 2 are fixedly installed with a drive plate 201. The drive plate 201 and the outer surface of the driven plate 107 are jointly fitted with a transmission belt 202. It should be noted that since the two output ends of the dual-axis motor 2 rotate in different directions, the active disk 201 can be controlled to rotate synchronously during the rotation process. At this time, the active disk 201 is in the rotating state and can be driven by the transmission belt 202 to synchronously control the driven disk 107 to rotate. Thus, the driven disk 107 in the rotating state controls the adjusting screw 101 to rotate. At this time, the adjusting screw 101 in the rotating state can control the adjusting sleeve 102 to move laterally.

[0020] A fixed base 3 is fixedly installed in the middle of the upper surface of the base 1. Lower fixed rings 301 are fixedly installed on the lower parts of both sides of the outer surface of the fixed base 3. A limiting piece 302 matching the limiting port 104 is fixedly protruded from the middle of the upper surface of the lower fixed ring 301. An upper fixed ring 303 is movably hinged to the rear end of the upper surface of the lower fixed ring 301. A bracket 304 is fixedly installed on the upper surface of the upper fixed rings 303. A transmission gear 305 is rotatably installed on the side of the brackets 304 that is close to each other. A motor 306 is fixedly installed on the side of the brackets 304 that is far apart from each other. The output end of the motor 306 is fixedly connected to the transmission gear 305. An auxiliary wheel 4 is rotatably installed on the inner surface of the fixed base 3. An opening is provided in the middle of the upper surface of the fixed base 3. Several limiting teeth 401 are fixedly provided on the inner ring surface of the auxiliary wheel 4. Several meshing teeth 402 are fixedly provided in the middle of the outer ring surface of the auxiliary wheel 4. The meshing teeth 402 mesh with the transmission gear 305. A friction plate 5 is installed on the inner surface of the auxiliary wheel 4 by limiting teeth 401. It should be noted that by setting the fixed seat 3 to limit the installation of the auxiliary wheel 4, the several limiting teeth 401 set in the auxiliary wheel 4 can mesh with the friction teeth on the outer ring surface of the friction plate 5, thereby realizing the locking connection between the friction plate 5 and the auxiliary wheel 4. This allows the friction plate 5 to rotate synchronously when the auxiliary wheel 4 is rotated. At this time, the rotating friction plate 5 can rub against the fixed friction ring 103 to achieve the test. Since the outer ring surface of the auxiliary wheel 4 is provided with meshing teeth 402, and the meshing teeth 402 mesh with the transmission gear 305, the transmission gear 305 can be controlled to rotate around the bracket 304 by starting the motor 306, thereby indirectly controlling the auxiliary wheel 4 to rotate around the fixed seat 3, achieving the effect of driving the friction plate 5 to rotate. Secondly, since the upper fixed ring 303 is movably hinged to the rear end of the upper surface of the lower fixed ring 301, the opening and closing of the upper fixed ring 303 relative to the lower fixed ring 301 facilitates the removal, placement, and replacement of the friction plate 5 placed inside the auxiliary wheel 4.

[0021] When using this utility model, the upper fixing ring 303 on one side of the fixing base 3 can be opened first. At this time, the friction plate 5 to be tested can be inserted into the auxiliary wheel 4. During the insertion process, the friction teeth on the outer ring surface of the friction plate 5 need to be interlocked with the limiting teeth 401 on the inner ring surface of the auxiliary wheel 4. After the friction plate 5 is placed, the upper fixing ring 303 can be closed again and locked with the lower fixing ring 301. At this time, the dual-axis motor 2 can be started. Since the two output ends of the dual-axis motor 2 rotate in different directions, the two sets of active discs 201 can be controlled to rotate in different directions. At this time, the active disc 201 is in the rotating state and can be synchronously controlled to rotate the driven disc 107 through the transmission belt 202. The driven disc 107 in the rotating state controls the adjusting screw 101 to rotate. At this time, the adjusting screw 101 in the rotating state can control the adjusting screw sleeve 102 to move laterally. When the adjusting screw sleeve 102 drives the friction ring 103 to move along the adjusting screw 101, the positioning ear 105 will slide synchronously along the positioning rod 106. During the movement, when the friction ring 103 contacts the friction plate 5, the position of the positioning ear 105 on the positioning rod 106 is the test base point. While keeping the adjusting screw sleeve 102 controlling the friction ring 103 to continuously advance towards the friction plate 5, the starting motor 306 can control the transmission gear 305 to rotate around the bracket 304. Since the outer ring surface of the auxiliary wheel 4 is provided with meshing teeth 402, and the meshing teeth 402 mesh with the transmission gear 305, the auxiliary wheel 4 is indirectly controlled to rotate around the fixed seat 3, thereby achieving the effect of driving the friction plate 5 to rotate. When the friction ring 103 continues to move towards the friction plate 5, the rotating friction plate 5 can rub against the friction ring 103 to achieve the test. During the test, as the friction plate 5 rubs, wear occurs. The friction ring 103 will continuously move towards the state of being in contact with the friction plate 5 under the action of the adjusting sleeve 102 and the adjusting screw 101. At this time, the distance between the positioning ear 105 and the base point on the positioning rod 106 is the degree of wear of the friction plate 5.

[0022] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A wear resistance testing device for wet multi-disc brake friction pads, characterized in that, The base (1) includes an adjusting screw (101) which is rotatably inserted into the middle of both sides of the outer surface of the base (1). An adjusting sleeve (102) is spirally fitted onto the outer surface of the end of the adjusting screw (101) that is close to each other. A friction ring (103) is fixedly installed at the end of the adjusting sleeve (102) that is close to each other. A positioning ear (105) is fixedly installed on the upper surface of the end of the adjusting sleeve (102) that is far away from each other. A positioning rod (106) is fixedly installed on the upper part of both sides of the outer surface of the base (1). The positioning ear (105) is movably fitted onto the outer surface of the positioning rod (106). A fixed seat (3) is fixedly installed in the middle of the upper surface of the base (1). Lower fixed rings (301) are fixedly installed on the lower parts of both sides of the outer surface of the fixed seat (3). An upper fixed ring (303) is movably hinged to the rear end of the upper surface of the lower fixed ring (301). A bracket (304) is fixedly installed on the upper surface of the upper fixed ring (303). A transmission gear (305) is rotatably installed on the side of the brackets (304) that are close to each other. A motor (306) is fixedly installed on the side of the brackets (304) that are far apart from each other. The output end of the motor (306) is fixedly connected to the transmission gear (305). An auxiliary wheel (4) is rotatably installed on the inner surface of the fixed seat (3).

2. The wear resistance testing device for wet multi-disc brake friction pads according to claim 1, characterized in that, Each of the adjusting screws (101) has a driven disc (107) fixedly installed at one end of each screw that is far apart from the other. The friction ring (103) has a limit port (104) in the middle of the upper and lower surfaces. The positioning rod (106) has scale lines on its outer surface.

3. The wear resistance testing device for wet multi-disc brake friction pads according to claim 1, characterized in that, A dual-axis motor (2) is fixedly installed in the middle of the lower surface of the base (1). Both output ends of the dual-axis motor (2) are fixedly installed with a drive disc (201). The outer surfaces of the drive disc (201) and the driven disc (107) are jointly fitted with a drive belt (202).

4. The wear resistance testing device for wet multi-disc brake friction pads according to claim 1, characterized in that, The lower fixing ring (301) has a protruding fixing piece (302) on the middle of its upper surface that matches the limiting port (104).

5. The wear resistance testing device for wet multi-disc brake friction pads according to claim 1, characterized in that, An opening is provided in the middle of the upper surface of the fixed seat (3). Several limiting teeth (401) are fixedly provided on the inner ring surface of the auxiliary wheel (4). Several meshing teeth (402) are fixedly provided in the middle of the outer ring surface of the auxiliary wheel (4). The meshing teeth (402) mesh with the transmission gear (305). A friction plate (5) is installed on the inner surface of the auxiliary wheel (4) by limiting teeth (401).

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