An oil-free bearing friction detection device

Abstract

An oil-free bearing friction detection device. The present invention relates to a friction detection device. The purpose of the present invention is to solve the problems that the existing bearing detection equipment cannot adjust the speed, has a single speed, a complex structure, a low transmission efficiency, and poor precision. It includes a frame platform, a test assembly and a loading assembly. The test assembly includes a fixed plate, a side plate, a tooling part, a driving part, a tested part, and a sensor detection unit; the fixed plate is installed on the frame platform, the side plate, the tooling part, and the driving part are installed on the fixed plate, the tested part is installed on the tooling part, one end of the sensor detection unit is hinged to the side plate, the other end of the sensor detection unit is fixedly connected to the tooling part, the driving part is connected to the tooling part, and the loading assembly is arranged below the tooling part. The present invention belongs to the field of bearing friction detection.

Description

Technical Field

[0001] The invention relates to a friction force detection device, in particular to an oil-free bearing friction force detection device, and belongs to the field of bearing friction force detection. Background Art

[0002] Oil-free bearing is a novel lubricating bearing that has the characteristics of both metal bearings and oil-free lubricating bearings. The metal matrix bears the load, and the specially formulated solid lubricating material plays a lubricating role. It has the characteristics of high load-bearing capacity, impact resistance, high temperature resistance, strong self-lubricating ability, etc. It is particularly suitable for heavy loads, low speeds, reciprocating or swinging, and other occasions that are difficult to lubricate and form oil films. The oil-free bearing after processing needs to be tested according to requirements. The existing technology has a single speed for oil-free bearing testing equipment and cannot be infinitely adjusted. In addition, the existing equipment structure is relatively complex, with low efficiency and poor accuracy. Summary of the invention

[0003] The purpose of the present invention is to solve the problems of existing bearing detection equipment that cannot adjust speed, has a single speed, a complex structure, low transmission efficiency, and poor accuracy, and further provide an oil-free bearing friction detection device.

[0004] The technical problem is solved by the following solution:

[0005] It includes a frame platform, a test component and a loading component. The test component includes a fixed plate, a side plate, a tooling piece, a driving piece, a piece to be tested and a sensor detection unit. The fixed plate is installed on the frame platform, the side plate, the tooling piece and the driving piece are installed on the fixed plate, the piece to be tested is pressed into the tooling piece through a pressing component, the pressing component includes a base, a frame, a loading cylinder and an extrusion head, the base is installed on the fixed plate, the frame is connected to the base, the extrusion head is connected to the loading cylinder and fixed to the frame, the extrusion head is driven by the loading cylinder to press the oil-free bearing onto the core shaft, one end of the sensor detection unit is hinged to the side plate, the other end of the sensor detection unit is fixedly connected to the tooling piece, the driving piece is connected to the tooling piece, and the loading component is arranged below the tooling piece.

[0006] Compared with the prior art, the present invention has the following beneficial effects:

[0007] 1. The present invention automatically detects bearing parameters by cooperating with a test assembly and a loading assembly. The motor of the present invention can realize stepless speed regulation, and the speed can be adjusted as needed. The servo control is precisely adjusted to perform detection tests.

[0008] 2. The present invention selects corresponding tooling parts for oil-free bearings, so that the present application can adapt to oil-free bearings of different specifications and models.

[0009] 3. The present invention can test the torque change of the bearing by cooperating with the test component and the loading component.

[0010] 4. The present invention changes the loading force of the tested oil-free bearing by artificially changing the weight of the loading weight on the loading member, and then conducts experiments under different loading forces.

[0011] 5. The present invention is applicable to oil-free bearing detection equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of this application.

[0013] Figure 2 It is the main view of the overall structure of this application.

[0014] Figure 3 It is a schematic diagram of the test component.

[0015] Figure 4 It is a schematic diagram of the structure of the press-fit component. DETAILED DESCRIPTION

[0016] Specific implementation method 1: Combination Figure 1-Figure 4 The present embodiment is described, wherein the oil-free bearing friction force detection device comprises a frame platform 1, a test assembly 2 and a loading assembly 4, wherein the test assembly 2 comprises a fixed plate 2-1, a side plate 2-2, a tooling piece 2-3, a driving piece 2-4, a tested piece 2-6 and a sensor detection unit 2-7; the fixed plate 2-1 is mounted on the frame platform 1, the side plate 2-2, the tooling piece 2-3 and the driving piece 2-4 are mounted on the fixed plate 2-1, and the tested piece 2-6 is pressed into the tooling piece 2-3 by a pressing assembly 3, and the pressing assembly 3 comprises a base 3-1, a frame 3- 2. Loading cylinder 3-3 and extrusion head 3-4, base 3-1 is installed on fixed plate 2-1, frame 3-2 is connected to base 3-1, extrusion head 3-4 is connected to loading cylinder 3-3 and fixed to frame 3-2, loading cylinder 3-3 drives extrusion head 3-4 to press oil-free bearing on mandrel, one end of sensor detection unit 2-7 is hinged to side plate 2-2, the other end of sensor detection unit 2-7 is fixedly connected to tooling 2-3, driving member 2-4 is connected to tooling 2-3, loading assembly 4 is arranged below tooling 2-3. The tested part is oil-free bearing, and the number of oil-free bearings is one or two.

[0017] Specific implementation method 2: Combination Figure 1-Figure 4This embodiment describes an oil-free bearing friction force detection device, wherein the driving part 2-4 includes a motor reducer and a driving gear, and the tooling part 2-3 includes a core shaft, a driven gear and two bearing seats with bearings; cylindrical bosses are processed at both ends of the driven gear, the measured part 2-6 is sleeved on the core shaft, and the driven gear is sleeved on the measured part 2-6, the core shaft is mounted on two bearing seats with bearings, and one end of the core shaft is fixedly connected to the sensor detection unit 2-7, the two bearing seats with bearings are fixedly mounted on the fixed plate 2-1, and the driving gear is fixedly mounted on the output end of the motor reducer shaft, and the driving gear and the driven gear are meshed. Other components and connection methods are the same as those in the first specific embodiment.

[0018] Specific implementation method three: Combination Figure 1-Figure 3 This embodiment is described as an oil-free bearing friction detection device. The sensor detection unit 2-7 includes a friction detection sensor and a connecting rod. One end of the connecting rod is fixed to one end of the core shaft, and the other end of the connecting rod is connected to one end of the friction detection sensor. The other end of the friction detection sensor is hinged to the side plate 2-2. Other components and connection methods are the same as those of the first embodiment.

[0019] Specific implementation method four: Combination Figure 1-Figure 3 The present embodiment is described as an oil-free bearing friction force detection device, wherein the loading assembly 4 comprises a loading rod 4-1, a loading member 4-2, a support frame 4-3, a loading pressure sensor unit 4-6, two guide rods 4-4, two linear bearings 4-5, two loading shafts 4-7 and four loading bearings 4-8; the support frame 4-3 is fixedly mounted on the frame platform 1 below the tooling member 2-3, the two guide rods 4-4 are slidably arranged on the support frame 4-3 through guide sleeves, and the loading pressure sensor unit 4-6 is slidably arranged on the two guide rods 4-4 The loading rod 4-1 is rotatably mounted on two linear bearings 4-5, one end of the loading rod 4-1 is supported on the bottom end of the loading pressure sensor unit 4-6 through a semi-cylindrical protrusion, the loading rod 4-1 is rotatably connected and mounted on the support frame 4-3 through a pin shaft, the other end of the loading rod 4-1 passes through the frame platform 1 and is rotatably connected to the loading member 4-2, two loading shafts 4-7 are fixedly mounted on the top of the loading pressure sensor unit 4-6, and two loading bearings 4-8 are symmetrically mounted on each loading shaft 4-7, and the two loading shafts 4-7 are arranged below the tooling 2-3. Other components and connection methods are the same as those of the second specific implementation method.

[0020] The load 4-2 changes the weight of the load by adding or removing weights.

[0021] Specific implementation method five: Combination Figure 1-Figure 3This embodiment describes an oil-free bearing friction force detection device, in which the loading bearings 4-8 on each loading shaft 4-7 are in rolling contact with the cylindrical boss on the driven gear. Other components and connection methods are the same as those of the fourth embodiment.

[0022] Specific implementation method six: Combination Figure 1-Figure 3 This embodiment is described. This embodiment is an oil-free bearing friction force detection device. The loading pressure sensor unit 4-6 includes a sensor upper connecting plate, a sensor lower connecting plate and a pressure sensor. The top of the pressure sensor is connected to the sensor upper connecting plate, the bottom of the pressure sensor is connected to the sensor lower connecting plate, and two guide rods 4-4 pass through the sensor lower connecting plate and are fixedly installed on the sensor upper connecting plate. Other components and connection methods are the same as those of the fourth embodiment.

[0023] Specific implementation method seven: Combination Figure 1-Figure 3 This embodiment is described as an oil-free bearing friction force detection device. The loading assembly 4 also includes a limiter, which is inserted into the loading rod 4-1. The loading rod 4-1 is floatingly set on the limiter, the top of the limiter is installed on the frame platform 1, and the baffle at the bottom of the limiter is set below the loading rod 4-1. Other components and connection methods are the same as those of the fourth embodiment.

[0024] Specific implementation method eight: Combination Figure 1-Figure 3 This embodiment is described as an oil-free bearing friction force detection device. The frame platform 1 includes a loading frame 1-1, a button opening member 1-2 and a touch screen control member 1-3. The button opening member 1-2 and the touch screen control member 1-3 are installed on the loading frame 1-1. The driving member 2-4 is connected to the touch screen control member 1-3, and the driving member 2-4 is controlled to work by the touch screen control member 1-3. Other components and connection methods are the same as those of the first embodiment.

[0025] How it works

[0026] When the present application is working, the oil-free bearing of the test piece 2-6 is installed on the core shaft through the press-in assembly 3, the oil-free bearing is sleeved on the core shaft, and the oil-free bearing is interference fit on the core shaft through the loading cylinder 3-3. The motor reducer of the driving part 2-4 is controlled by the touch screen control part 1-3 of the frame platform 1, and the power is transmitted to the driven gear through the meshing of the driving gear and the driven gear. The driven gear overcomes the friction force between the driven gear and the oil-free bearing and rotates, and the pressure is transmitted to the friction detection sensor of the sensor detection unit 2-7 through the connecting rod of the sensor detection unit 2-7, and the friction value is stored and displayed on the friction detection sensor.

[0027] When the present application is working, the oil-free bearing of the tested piece 2-6 is installed on the core shaft through the press-in component 3, the oil-free bearing is sleeved on the core shaft, and the oil-free bearing is interference fit on the core shaft through the loading cylinder 3-3. The motor reducer of the driving piece 2-4 is controlled by the touch screen control component 1-3 of the frame platform 1, and the power is transmitted to the driven gear through the meshing of the driving gear and the driven gear. The driven gear overcomes the friction between the driven gear and the oil-free bearing and rotates, and the pressure is transmitted to the friction detection sensor of the sensor detection unit 2-7 through the connecting rod of the sensor detection unit 2-7, and the friction value is stored and displayed on the friction detection sensor. At the same time, the weight of the loading piece 4-2 is adjusted, and the pressure value of the pressure sensor on the loading pressure sensor unit 4-6 is changed by the weight of the loading piece 4-2, and the driven gear of the tooling piece 2-3 is provided with supporting force through the loading shaft 4-7 and the loading bearing 4-8, so as to obtain the value of the friction detected by the sensor detection unit 2-7 at this time, thereby realizing the detection of the oil-free bearing.

Claims

1. An oil-free bearing friction force detection device, characterized in that: It comprises a frame platform (1), a test assembly (2) and a loading assembly (4); the test assembly (2) comprises a fixed plate (2-1), a side plate (2-2), a tooling piece (2-3), a driving piece (2-4), a tested piece (2-6) and a sensor detection unit (2-7); the fixed plate (2-1) is mounted on the frame platform (1); the side plate (2-2), the tooling piece (2-3) and the driving piece (2-4) are mounted on the fixed plate (2-1); the tested piece (2-6) is pressed into the tooling piece (2-3) by a pressing assembly (3); the pressing assembly (3) comprises a base (3-1), a frame (3-2), a tooling piece (2-3), a driving piece (2-4), a tested piece (2-6) and a sensor detection unit (2-7); 2), a loading cylinder (3-3) and an extrusion head (3-4), the base (3-1) is mounted on the fixed plate (2-1), the frame (3-2) is connected to the base (3-1), the extrusion head (3-4) is connected to the loading cylinder (3-3) and fixed to the frame (3-2), the loading cylinder (3-3) drives the extrusion head (3-4) to press the oil-free bearing onto the core shaft, one end of the sensor detection unit (2-7) is hinged to the side plate (2-2), the other end of the sensor detection unit (2-7) is fixedly connected to the tooling (2-3), and the driving member (2-4) is connected to the tooling (2-3), The loading assembly (4) is arranged below the tooling (2-3), the driving member (2-4) comprises a motor reducer and a driving gear, the tooling (2-3) comprises a core shaft, a driven gear and two bearing seats with bearings; both ends of the driven gear are respectively processed with cylindrical bosses, the measured part (2-6) is sleeved on the core shaft, the driven gear is sleeved on the measured part (2-6), the core shaft is mounted on two bearing seats with bearings, and one end of the core shaft is fixedly connected to the sensor detection unit (2-7), the two bearing seats with bearings are fixedly mounted on the fixing plate (2-1), and the driving gear is fixedly mounted on the motor reducer. At the output end of the shaft, the driving gear and the driven gear are meshed, the sensor detection unit (2-7) includes a friction force detection sensor and a connecting rod, one end of the connecting rod is fixed to one end of the core shaft, the other end of the connecting rod is connected to one end of the friction force detection sensor, and the other end of the friction force detection sensor is hinged to the side plate (2-2), and the loading assembly (4) includes a loading rod (4-1), a loading member (4-2), a support frame (4-3), a loading pressure sensor unit (4-6), two guide rods (4-4), two linear bearings (4-5), two loading shafts (4-7) and four loading bearings (4-8);The support frame (4-3) is fixedly mounted on the frame platform (1) below the tooling (2-3); two guide rods (4-4) are slidably mounted on the support frame (4-3) through guide sleeves; a loading pressure sensor unit (4-6) is slidably mounted on two linear bearings (4-5) through the two guide rods (4-4); one end of the loading rod (4-1) is supported on the bottom end of the loading pressure sensor unit (4-6) through a semi-cylindrical protrusion; the loading rod (4-1) is rotatably mounted on the support frame (4-3) through a pin shaft; and the other end of the loading rod (4-1) passes through the frame platform ( 1) and is rotatably connected to the loading member (4-2), two loading shafts (4-7) are fixedly mounted on the top of the loading pressure sensor unit (4-6), two loading bearings (4-8) are symmetrically mounted on each loading shaft (4-7), the two loading shafts (4-7) are arranged below the tooling member (2-3), the loading assembly (4) further comprises a limiter, the limiter is inserted into the loading rod (4-1), the loading rod (4-1) is floatingly arranged on the limiter, the top of the limiter is mounted on the frame platform (1), and the baffle at the bottom of the limiter is arranged below the loading rod (4-1); The loading bearings (4-8) on each loading shaft (4-7) are in rolling contact with the cylindrical bosses on the driven gears.

2. The oil-free bearing friction force detection device according to claim 1, characterized in that: The loading pressure sensor unit (4-6) comprises an upper sensor connecting plate, a lower sensor connecting plate and a pressure sensor; the top end of the pressure sensor is connected to the upper sensor connecting plate, the bottom end of the pressure sensor is connected to the lower sensor connecting plate, and two guide rods (4-4) pass through the lower sensor connecting plate and are fixedly mounted on the upper sensor connecting plate.

3. The oil-free bearing friction force detection device according to claim 1, characterized in that: The frame platform (1) comprises a loading frame (1-1), a button opening component (1-2) and a touch screen control component (1-3); the button opening component (1-2) and the touch screen control component (1-3) are mounted on the loading frame (1-1); a driving component (2-4) is connected to the touch screen control component (1-3); and the driving component (2-4) is controlled to operate via the touch screen control component (1-3).

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