A sliding bearing friction and wear experimental device

Abstract

The utility model discloses a sliding bearing friction and wear experimental device belongs to bearing wear experimental equipment technical field, and its technical scheme main points include friction and wear testing machine body, the inside of friction and wear testing machine body is provided with auxiliary test mechanism and auxiliary assembly, the auxiliary test mechanism includes bearing assembly and control assembly, bearing assembly sets up in the inside of friction and wear testing machine body, control assembly sets up in the inside of friction and wear testing machine body, bearing assembly in motor drive driving rod, support rod rotates, and bearing rod is detachable to adapt to different size bearing, and support rod can splice and increase experimental quantity, the adaptability of experimental equipment to different size bearing is improved significantly, and the preparation cost of experiment is reduced, and control assembly adjusts the height of output pipe through adjusting rod, and the bearing is sprayed lubricating liquid to realize the comparison of whether lubricating, the utility model solves the problem of the poor adaptation of existing equipment, single data, and provides data for bearing optimization.

Description

Technical Field

[0001] This utility model relates to the technical field of bearing wear testing equipment, and in particular to a sliding bearing friction and wear testing device. Background Technology

[0002] Friction and wear tests on sliding bearings are key tests for evaluating the friction characteristics and wear life of sliding bearings (composed of inner ring, outer ring, sliding contact surface, etc., with load support achieved by "relative sliding") under different working conditions. The core objective is to simulate the real working environment, quantify bearing performance indicators, and provide data support for bearing design optimization and application selection.

[0003] When in use, the friction and wear testing machine uses a motor to drive the sliding bearing to rotate, and then the bearing wear data is observed in real time on the display screen. However, this equipment is not convenient for quickly installing bearings of different sizes, and it directly rotates the bearing for the experiment without an auxiliary comparison structure, which makes the experimental data relatively simple and thus reduces the user experience.

[0004] To address this, an experimental apparatus for testing the friction and wear of sliding bearings is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a sliding bearing friction and wear testing device. This device addresses the problem that while friction and wear testing machines use a motor to rotate the sliding bearing and then monitor the bearing wear data in real time on a display screen, the current system is not convenient for quickly installing bearings of different sizes. Furthermore, it directly rotates the bearing for testing and lacks an auxiliary comparison structure, resulting in relatively simple experimental data and thus reducing the user experience.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sliding bearing friction and wear testing device, comprising a friction and wear testing machine body, an auxiliary testing mechanism provided on the inner side of the friction and wear testing machine body, the auxiliary testing mechanism comprising a bearing component and a control component, the bearing component being disposed on the inner side of the friction and wear testing machine body, the control component being disposed on the inner side of the friction and wear testing machine body, the bearing component comprising a motor, a drive rod, a protective shell, a support rod, and a bearing rod, the motor being bolted to the inner side of the friction and wear testing machine body, the drive rod being fixedly connected to the left side of the motor, the protective shell being movably connected to the inner side of the friction and wear testing machine body, the support rod being rotatably connected to both ends of the inner side of the protective shell, and the bearing rod being bolted to the inner side of the support rod.

[0007] Preferably, the control assembly includes a storage plate bolted to the top of the protective housing, and an adjustment rod is threaded onto the inner side of the storage plate.

[0008] Preferably, the bottom of the adjusting rod is rotatably connected to a support plate, and the front and rear sides of the support plate are slidably connected to the inner side of the storage plate.

[0009] Preferably, an output pipe is detachably connected to the inner side of the support plate, and a nozzle is connected to the left side of the output pipe.

[0010] Preferably, an auxiliary component is provided on the inner side of the friction and wear testing machine body. The auxiliary component includes a support base fixedly connected to the bottom of the protective shell, and a collection plate is fixedly connected to the top of the inner side of the support base. The top surface of the collection plate is inclined.

[0011] Preferably, a collection box is slidably connected to the bottom of the inner side of the support base, and a handle is fixedly connected to the front side of the collection box.

[0012] Preferably, the left side of the drive rod is connected to the right side flange of the support rod, and a baffle is detachably connected to the top of the protective housing.

[0013] Preferably, the front and rear sides of the inner side of the protective shell are threadedly connected with clamping rods, and the two sides of the inner side of the support rod are provided with threaded holes.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting up a load-bearing component, the problems of "inconvenient quick installation of bearings of different sizes" and "limited number of experiments" are solved: When using this sliding bearing friction and wear testing device, the motor bolt in the load-bearing component is fixed to the inside of the friction and wear testing machine body. Its output end drives the drive rod to rotate. The drive rod and the support rod are connected by a flange to form a stable rotation structure, which can effectively drive the load-bearing rod and the sliding bearing on the surface of the load-bearing rod to rotate synchronously. The protective shell is movably connected to the inside of the testing machine body, which can form a closed protection for the internal support rod, load-bearing rod and bearing, and prevent impurities from entering or parts from splashing during the experiment. The support rod has a threaded hole on the inside, which can be used to splice and connect multiple sets of support rods through bolts, thereby increasing the number of bearings in a single experiment and improving experimental efficiency. At the same time, the load-bearing rod is detachably connected to the support rod through bolts, which supports quick disassembly and replacement. Users can install the corresponding specifications of load-bearing rod according to the different sizes of the bearings to be tested, without replacing the entire experimental structure, which significantly improves the adaptability of the experimental equipment to bearings of different sizes and reduces experimental preparation costs. 2. By setting up a control component, the problem of "single experimental data" is solved, enriching the data dimensions and reference value: The storage plate in the control component is bolted to the top of the protective shell, serving as a stable support structure; the adjusting rod is threaded to the inside of the storage plate, and its bottom is rotatably connected to the support plate, with the front and rear sides of the support plate slidingly engaged with the inside of the storage plate. When the user rotates the adjusting rod, the support plate can slide vertically along the storage plate, thereby changing the height of the output pipe and nozzle inside the support plate, ensuring that the nozzle can maintain the same horizontal position as the inside of the sliding bearing under test; the output pipe can be connected to an external pumping device to spray lubricating liquid into the designated bearing, thus realizing "a comparative experiment of friction and wear of bearings in the same batch, under the same working conditions (same time, same number of rotations, and same load), with and without lubrication." This allows for the intuitive acquisition of the difference in bearing wear under the two conditions, solving the problem that traditional equipment can only conduct experiments under a single working condition and has insufficient data reference value, providing a more comprehensive experimental basis for optimizing bearing lubrication schemes. Attached Figure Description

[0015] Figure 1 This is an overall structural diagram of a sliding bearing friction and wear experimental device according to the present invention; Figure 2 This is a schematic diagram of the auxiliary testing mechanism in this utility model; Figure 3 This is a schematic diagram of the structure of the load-bearing component in this utility model; Figure 4 This is a schematic diagram of the structure of the comparison component in this utility model; Figure 5 This is a schematic diagram of the auxiliary components in this utility model.

[0016] In the figure, 1. Friction and wear testing machine body; 2. Auxiliary testing mechanism; 21. Bearing component; 211. Motor; 212. Drive rod; 213. Protective shell; 214. Support rod; 215. Bearing rod; 22. Control component; 221. Storage plate; 222. Adjusting rod; 223. Bearing plate; 224. Output pipe; 3. Auxiliary component; 31. Bearing base; 32. Collection plate; 33. Collection box. Detailed Implementation

[0017] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-5A sliding bearing friction and wear testing device includes a friction and wear testing machine body 1. An auxiliary testing mechanism 2 is provided inside the friction and wear testing machine body 1. The auxiliary testing mechanism 2 includes a bearing component 21 and a control component 22. The bearing component 21 and the control component 22 are both located inside the friction and wear testing machine body 1. The bearing component 21 includes a motor 211, a drive rod 212, a protective shell 213, a support rod 214, and a bearing rod 215. The motor 211 is bolted to the inside of the friction and wear testing machine body 1. The drive rod 212 is fixedly connected to the left side of the motor 211. The protective shell 213 is movably connected to the inside of the friction and wear testing machine body 1. The support rod 214 is rotatably connected to both ends inside the protective shell 213. The bearing rod 215 is bolted to the inside of the support rod 214.

[0019] In this embodiment: By setting up a motor 211, drive rod 212, protective shell 213, support rod 214, and bearing rod 215, the bearing installation and experimental preparation are as follows: According to the size of the sliding bearing to be tested, select a bearing rod 215 of appropriate specifications, and fix the bearing rod 215 to the inside of the support rod 214 with bolts; if it is necessary to increase the number of experiments, multiple sets of support rods 214 can be spliced ​​by bolts using the threaded holes on the inside of the support rod 214 (each set of support rods 214 corresponds to a set of bearing rods 215 and bearings); after the sliding bearing is sleeved on the surface of the bearing rod 215, rotate the clamping rods on the front and rear sides of the inner side of the protective shell 213 so that the ends of the clamping rods press against the outer ring of the bearing, ensuring that the outer ring of the bearing is fixed and the inner ring rotates synchronously with the bearing rod 215 during the experiment; finally, cover the inner side of the protective shell 213 with the inner side of the testing machine body to complete the basic structure assembly.

[0020] Specifically, such as Figure 2 , Figure 4 As shown, the control assembly 22 includes a storage plate 221 bolted to the top of the protective housing 213, and an adjustment rod 222 is threaded onto the inner side of the storage plate 221.

[0021] Specifically, such as Figure 2 , Figure 4 As shown, the bottom of the adjusting rod 222 is rotatably connected to the support plate 223, and the front and rear sides of the support plate 223 are slidably connected to the inner side of the storage plate 221.

[0022] Specifically, such as Figure 2 , Figure 4 As shown, an output pipe 224 is detachably connected to the inner side of the support plate 223, and a nozzle is connected to the left side of the output pipe 224.

[0023] In this embodiment: By setting up a receiving plate 221, adjusting rod 222, bearing plate 223, and output pipe 224, the control experimental structure is adjusted as follows: For the bearing group that needs to be "lubricated for comparison", rotate the adjusting rod 222 in the control assembly 22—the adjusting rod 222 drives the bearing plate 223 to slide along the inner side of the receiving plate 221 until the nozzle at the left end of the output pipe 224 on the inner side of the bearing 223 is aligned with the inner side of the bearing group; connect the right end of the output pipe 224 to an external pumping device (such as a lubricating oil pump), and adjust the pumping pressure and flow rate to ensure that the lubricating liquid can be stably sprayed into the bearing; the bearing group that does not require lubrication remains in its initial state, forming a control experimental group. Experimental operation and waste liquid recovery: Start the motor 211 in the friction and wear testing machine body 1 and the bearing assembly 21. The motor 211 drives the drive rod 212 to rotate, and the drive rod 212 drives the support rod 2 through the flange transmission. 14. The bearing rod 215 and the inner ring of the bearing rotate. During the experiment, the external pumping equipment is turned on to continuously spray lubricating liquid onto the control group bearings, while the bearings in the unlubricated group rotate normally. The splashed lubricating liquid is blocked by the protective shell 213 and flows along the inner wall of the shell to the bottom collection plate 32. It is then guided by the inclined collection plate 32 to the collection box 33 inside the bearing base 31. The friction coefficient, temperature, number of rotations, and other data of the two sets of bearings are recorded in real time through the display screen of the test machine. The experiment ends and the data is compared: after the preset experimental time or number of rotations is reached, the motor 211 and the pumping equipment are turned off, the protective shell 213 and the clamping rod are disassembled, and the two sets of experimental bearings are taken out. The wear of the bearings (such as surface roughness and wear depth) is observed and measured. Combined with the real-time data recorded on the display screen, the differences in friction and wear of the bearings under unlubricated and lubricated conditions are compared and analyzed to form a complete experimental report.

[0024] Specifically, such as Figure 1 , Figure 5 As shown, an auxiliary component 3 is provided on the inner side of the friction and wear testing machine body 1. The auxiliary component 3 includes a bearing base 31 fixedly connected to the bottom of the protective shell 213. A collecting plate 32 is fixedly connected to the top of the inner side of the bearing base 31. The top surface of the collecting plate 32 is inclined.

[0025] Specifically, such as Figure 1 , Figure 5 As shown, a collection box 33 is slidably connected to the bottom of the inner side of the support base 31, and a handle is fixedly connected to the front side of the collection box 33.

[0026] In this embodiment: by setting up a support base 31, a collection plate 32 and a collection box 33, the support base 31, the collection plate 32 and the collection box 33 cooperate with each other. The support base 31 is located at the bottom of the protective shell 213, and it is combined with the protective shell 213 to form a closed structure. At the same time, the support base 31 can receive and fix the collection plate 32. At this time, the collection plate 32 is located at the bottom of the protective shell 213 and is used to receive the lubricating liquid output by the control component 22. The collection box 33 is located at the bottom of the collection plate 32 and is used to collect and recycle waste liquid.

[0027] Specifically, such as Figure 3 As shown, the left side of the drive rod 212 is connected to the right flange of the support rod 214, and a baffle is detachably connected to the top of the protective housing 213.

[0028] Specifically, such as Figure 3 As shown, clamping rods are threadedly connected to the front and rear sides of the inner side of the protective housing 213, and threaded holes are opened on both sides of the inner side of the support rod 214.

[0029] In this embodiment: by setting up a drive rod 212, a protective shell 213, and a support rod 214, the drive rod 212, the protective shell 213, and the support rod 214 cooperate with each other. The protective shell 213 is located on the outside and is used as a shielding structure. It can protect the support rod 214 and the bearing rod 215. At the same time, it can assist the comparison component 22. When the comparison component 22 outputs lubricating liquid into the comparison sliding bearing, the lubricating liquid splashes because the bearing is in a rotating state. At this time, the protective shell 213 can receive the liquid and prevent splashing. Furthermore, the front and rear sides of the inner side of the protective shell 213 are threaded with clamping rods. This structure can clamp and fix the outer ring of the bearing, ensuring that the outer ring is fixed while the inner ring of the bearing rotates. The drive rod 212 and the support rod 214 can be combined to form a rotating structure, which is the main structure that drives the bearing to rotate.

[0030] Working Principle: First, this device is used to test the friction and wear characteristics of sliding bearings under different working conditions. Before the experiment, the equipment assembly and parameter settings need to be completed: Bearing Installation and Experiment Preparation: According to the size of the sliding bearing to be tested, select a suitable bearing rod 215 and fix the bearing rod 215 to the inside of the support rod 214 with bolts; if it is necessary to increase the number of experiments, multiple sets of support rods 214 can be spliced ​​by bolts using the threaded holes on the inside of the support rod 214 (each set of support rods 214 corresponds to a set of bearing rods 215 and bearings); after the sliding bearing is sleeved on the surface of the bearing rod 215, rotate the inner front and rear sides of the protective shell 213. The clamping rod is used to press the end of the clamping rod against the outer ring of the bearing, ensuring that the outer ring of the bearing is fixed and the inner ring rotates synchronously with the bearing rod 215 during the experiment; finally, the protective shell 213 is closed on the inside of the testing machine body to complete the basic structure assembly. The experimental structure is then adjusted as follows: For the bearing group requiring "lubrication comparison", the adjusting rod 222 in the comparison assembly 22 is rotated—the adjusting rod 222 drives the bearing plate 223 to slide along the inside of the receiving plate 221 until the nozzle at the left end of the output pipe 224 on the inside of the bearing plate 223 is aligned with the inside of the bearing group; the right end of the output pipe 224 is connected to an external pumping device (such as a lubricating oil pump) and adjusted. Pump pressure and flow rate are adjusted to ensure a stable spraying of lubricating fluid into the bearing interior. Bearings requiring no lubrication remain in their initial state, forming a control group. Experimental operation and waste fluid recovery: The motor 211 in the friction and wear testing machine body 1 and the bearing assembly 21 is started. The motor 211 drives the drive rod 212 to rotate, which in turn drives the support rod 214, the bearing rod 215, and the bearing inner ring to rotate via a flange transmission. During the experiment, an external pump is activated to continuously spray lubricating fluid into the control group bearings, while the unlubricated bearings rotate normally. The splashed lubricating fluid is blocked by the protective casing 213 and flows along the inner wall of the casing to… The bottom collection plate 32 guides the flow to the collection box 33 inside the support base 31. The friction coefficient, temperature, number of rotations and other data of the two sets of bearings are recorded in real time through the display screen of the test machine body. After the experiment is completed and the data is compared: after the preset test time or number of rotations is reached, the motor 211 and pumping equipment are turned off, the protective shell 213 and clamping rod are removed, and the two sets of test bearings are taken out. The wear of the bearings (such as surface roughness and wear depth) is observed and measured. Combined with the real-time data recorded on the display screen, the difference in friction and wear of the bearings under unlubricated and lubricated conditions is compared and analyzed to form a complete experimental report.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the scope of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sliding bearing friction and wear testing apparatus, comprising a friction and wear testing machine body (1), characterized in that: An auxiliary testing mechanism (2) is provided on the inner side of the friction and wear testing machine body (1). The auxiliary testing mechanism (2) includes a bearing component (21) and a control component (22). The bearing component (21) is located on the inner side of the friction and wear testing machine body (1), and the control component (22) is located on the inner side of the friction and wear testing machine body (1). The bearing component (21) includes a motor (211), a drive rod (212), a protective shell (213), a support rod (214), and a bearing rod (215). The motor (211) is bolted to the inner side of the friction and wear testing machine body (1). The drive rod (212) is fixedly connected to the left side of the motor (211). The protective shell (213) is movably connected to the inner side of the friction and wear testing machine body (1). The support rod (214) is rotatably connected to both ends of the inner side of the protective shell (213). The bearing rod (215) is bolted to the inner side of the support rod (214).

2. The sliding bearing friction and wear test apparatus according to claim 1, characterized in that: The control assembly (22) includes a storage plate (221) bolted to the top of the protective housing (213), and an adjustment rod (222) is threaded onto the inner side of the storage plate (221).

3. The sliding bearing friction and wear test apparatus according to claim 2, characterized in that: The bottom of the adjusting rod (222) is rotatably connected to a support plate (223), and the front and rear sides of the support plate (223) are slidably connected to the inner side of the storage plate (221).

4. The sliding bearing friction and wear test apparatus according to claim 3, characterized in that: The inner side of the support plate (223) is detachably connected to an output pipe (224), and the left side of the output pipe (224) is connected to a nozzle.

5. The sliding bearing friction and wear test apparatus according to claim 1, characterized in that: An auxiliary component (3) is provided on the inner side of the friction and wear testing machine body (1). The auxiliary component (3) includes a support base (31) fixedly connected to the bottom of the protective shell (213). A collection plate (32) is fixedly connected to the top of the inner side of the support base (31). The top surface of the collection plate (32) is inclined.

6. The sliding bearing friction and wear test apparatus according to claim 5, characterized in that: A collection box (33) is slidably connected to the bottom of the inner side of the support base (31), and a handle is fixedly connected to the front side of the collection box (33).

7. The sliding bearing friction and wear test apparatus according to claim 1, characterized in that: The left side of the drive rod (212) is connected to the right flange of the support rod (214), and the top of the protective housing (213) is detachably connected to a baffle plate.

8. The sliding bearing friction and wear test apparatus according to claim 1, characterized in that: The protective shell (213) has a clamping rod threadedly connected to the front and rear sides of its inner side, and the support rod (214) has threaded holes on both sides of its inner side.

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