A detection device and detection method for grease and flexibility in bearings

Abstract

The present invention discloses a detection device for grease and flexibility in a bearing, comprising a rotating module, a measuring module, a flexible clamping module, and a conveying module; the rotating module is used to rotate the bearing at a predetermined speed and load, the measuring module is used to measure the torque value of the bearing under specific working conditions, the flexible clamping module is used for non-damaging clamping of the bearing, and the conveying module is used for the input and output of the bearing. The detection of whether there is grease in the bearing and the detection of bearing flexibility can be realized at the same time, which saves time and effort, is highly efficient, and avoids human misjudgment. The detection method disclosed in the present invention causes the bearing to rotate at a predetermined speed and load, measures the torque value of the bearing under specific working conditions through a dynamic torque sensor, and then conveys the collected signal to a computer for signal processing and analysis, and compares the measured torque with the judgment limit. It can quickly and accurately detect whether there is grease in the bearing and whether there is flexibility, thereby improving production efficiency and ensuring product quality.

Description

Technical Field

[0001] The invention relates to the technical field of bearing production and manufacturing, and in particular to a detection device and a detection method for grease and flexibility in a bearing. Background Art

[0002] Bearings are an important component in modern mechanical equipment. Bearings play the role of supporting rotating shafts and are used in various mechanical transmission structures. Its main function is to support mechanical rotating bodies, reduce the friction coefficient during their movement, and ensure their rotation accuracy. According to the different friction properties of the moving elements, bearings can be divided into two categories: rolling bearings and sliding bearings. Rolling bearings generally consist of four parts: outer ring, inner ring, rolling element and cage. Strictly speaking, they consist of six parts: outer ring, inner ring, rolling element, cage, sealing ring and lubricating oil. The inner ring is used to be assembled with the end of the rotating shaft to provide support for the rotating shaft. Usually, a concave inner rolling channel adapted to the rolling body is provided on the outer side of the inner ring; the outer ring is usually assembled on a fixed component to provide a basis for the rotation of the inner ring. Usually, a concave outer rolling channel adapted to the rolling body is provided on the inner side of the outer ring, so that a complete rolling channel for the rolling body is formed between the inner ring and the outer ring; the rolling body is assembled in the rolling channel between the inner ring and the outer ring, and the sliding friction motion between the rotating shaft and the fixed component is converted into rolling friction motion, thereby reducing the friction force; the retaining frame is located between the inner ring and the outer ring of the rolling bearing, and separates the rolling bodies from each other to avoid friction between the rolling bodies, while ensuring that the rolling bodies remain in proper positions, so that each rolling body is subjected to uniform force, thereby improving the stability and reliability of the rolling bearing.

[0003] During the operation of the bearing, the rolling friction between the rolling element and the outer ring, cage and inner ring makes the rolling contact surface of the rolling element, outer ring, cage and inner ring easy to wear, thereby shortening the fatigue life of the bearing, so the bearing must be lubricated. Bearing grease is a lubricant made from low-viscosity synthetic lubricant and various additives such as antioxidants and anti-corrosion. Grease has a good effect on bearings, providing good adhesion, wear resistance, temperature resistance, rust resistance and lubricity, can improve high-temperature oxidation resistance, delay aging, dissolve carbon deposits, prevent the aggregation of metal debris and oil stains, and improve the wear resistance, pressure resistance and corrosion resistance of the machinery.

[0004] When adding grease to a bearing, it cannot be filled up completely. When the bearing is working, the lubricating oil will also rotate along the raceway with the ball, so a certain amount of space must be left to reduce the resistance of the grease. In addition, the volume of the lubricating oil will expand when it is working and generate heat, so a certain amount of space must also be left. Practice has shown that any bearing that is filled with grease will definitely generate heat and overflow when working.

[0005] Performance characteristics of bearing grease: excellent anti-wear extreme pressure performance, ensuring optimal load capacity; extremely effective in reducing friction and keeping the heat generated to a minimum; excellent high-temperature oxidation stability, ensuring long-term normal operation of lubricated parts at high temperatures; providing comprehensive protection for bearings and greatly extending bearing life; excellent lubrication of metal surfaces, especially under boundary lubrication conditions.

[0006] Therefore, injecting grease into the bearing and testing the flexibility of the bearing are two indispensable processes in the production and manufacturing of bearings. In the actual production process, bearings that have been injected with grease and bearings that have not been injected with grease are easily confused, so it is necessary to test whether there is grease in the bearing; during the production process, there may be assembly errors, rust, foreign matter intrusion, etc. that affect the flexibility of the bearing, so it is necessary to test the flexibility of the assembled bearing.

[0007] In the prior art, the detection of whether the bearing is greased or not is separated from the detection of bearing flexibility. The detection of whether the bearing is greased or not is mainly done manually, that is, it is judged by people's subjective feeling. This is easy to cause misjudgment, resulting in some bearings entering the next process without grease injection, and some bearings are repeatedly greased, resulting in excessive grease in the bearing, which seriously affects the quality of the product. At the same time, manual detection increases the workload of workers and increases production costs. Summary of the invention

[0008] The purpose of the present invention is to provide a device and method for detecting grease and flexibility in a bearing in view of the shortcomings of the prior art in manually detecting whether there is grease in the bearing, so as to solve the problems existing in the prior art.

[0009] To achieve the above-mentioned purpose, the present invention provides the following solution: The present invention provides a detection device for grease and flexibility in a bearing, comprising a bracket, on which a transport module, a rotation module, a measuring module and a flexible clamping module are installed; the rotation module is used to rotate the bearing at a predetermined speed and load, the measuring module is used to measure the torque value of the bearing under specific working conditions, the flexible clamping module is used for non-destructive clamping of the bearing, and the transport module is used for the input and output of the bearing.

[0010] Preferably, the rotating module includes a rotating motor, a coupling and a rotating head; the measuring module includes a sliding frame, a dynamic torque sensor and a hydraulic cylinder; a slide groove is fixedly installed on the bracket, the sliding frame is slidably connected to the slide groove, the fixed end of the hydraulic cylinder is fixedly installed on the bracket, and the movable end of the hydraulic cylinder is fixedly connected to the sliding frame; the rotating motor and the dynamic torque sensor are both fixedly installed on the sliding frame, the rotating motor is located above the dynamic torque sensor, and the dynamic torque sensor is located above the rotating head; the rotating shaft of the rotating motor, the rotating shaft of the dynamic torque sensor and the rotating head are all connected through a coupling.

[0011] Preferably, the conveying module includes a first conveying portion and a second conveying portion vertically arranged to the first conveying portion.

[0012] Preferably, the first conveying part includes a first motor, a first driving wheel, a first driven wheel, a conveying belt and a first cylinder; the first motor and the first cylinder are both fixedly mounted on the bracket, the first driving wheel and the first driven wheel are both rotatably connected to the bracket, the first driving wheel is fixedly connected to the output shaft of the first motor, and the first driving wheel and the first driven wheel are transmission-connected via the conveying belt; the first cylinder is located above the first driven wheel.

[0013] Preferably, the second conveying part includes a second motor, a belt, a loading port and a discharging port; support plates are provided on both sides of the belt, the support plates are fixedly mounted on the bracket, and the second motor is fixedly connected to the support plates; a second driving wheel and a second driven wheel are rotatably connected to the support plate, the second driving wheel is fixedly connected to the output shaft of the second motor, and the second driving wheel and the second driven wheel are connected through the belt transmission; the loading port and the discharging port are both arranged parallel to the belt and are located directly above the belt; the loading port and the discharging port are both flush with the conveying belt and are arranged perpendicular to the conveying belt; the first cylinder is arranged corresponding to the loading port.

[0014] Preferably, a baffle is provided at the end of the conveyor belt, and the baffle is fixedly connected to the loading port.

[0015] Preferably, the flexible clamping module includes a supporting pad, a second cylinder and a clamping portion; the supporting pad is fixedly mounted on a bracket directly below the rotating head, and the top surface of the supporting pad is flush with the loading port; the clamping portion includes an upper clamping plate and a lower clamping plate, and the upper clamping plate is slidably connected to the lower clamping plate; the fixed end of the second cylinder is fixedly mounted on the lower clamping plate, and the movable end of the second cylinder passes through the lower clamping plate and is fixedly connected to the upper clamping plate; the lower clamping plate is fixedly connected to the belt, and the lower clamping plate is slidably connected to the support plate.

[0016] Preferably, both the upper clamping plate and the lower clamping plate are provided with clamping openings, and the clamping openings are arranged corresponding to the rotating head.

[0017] A detection method using the detection device for detecting grease and flexibility in a bearing, comprising:

[0018] Step 1: Make the bearing rotate at a predetermined speed and load; the hydraulic cylinder pulls the entire sliding frame downward, and when the first shaft section of the rotating head is inserted into the circular hole of the inner ring of the bearing, and the shaft shoulder of the rotating head fits with the upper end surface of the inner ring of the bearing, the hydraulic cylinder stops working; at this time, the rotating motor drives the dynamic torque sensor to rotate, and the dynamic torque sensor drives the rotating head to rotate. When the speed reaches the set value, the torque value is collected and transmitted to the computer for analysis and judgment;

[0019] Step 2, determine whether the measured torque is not greater than the determination limit A; if the measured torque is not greater than the determination limit A, it is determined that the bearing is not greased; if it is greater than the determination limit A, proceed to the next step for determination;

[0020] Step 3, determine whether the measured torque is greater than the judgment limit A and less than the judgment limit B; if the measured torque is greater than the judgment limit A and less than the judgment limit B, it is determined that the bearing has been greased; if the measured torque is not less than the judgment limit B, it is determined that the bearing has flexibility problems or too much grease has been injected.

[0021] The present invention discloses the following technical effects:

[0022] The device for detecting grease and flexibility in the bearing provided by the present invention can detect the presence of grease in the bearing and the flexibility of the bearing at the same time, which saves time and effort, is highly efficient, and avoids human misjudgment. The detection method for detecting grease in the bearing and the flexibility of the bearing provided by the present invention causes the bearing to rotate at a predetermined speed and load, measures the torque value of the bearing under specific working conditions through a dynamic torque sensor, and then sends the collected signal to a computer for signal processing and analysis, compares the measured torque with the judgment limit, and draws a conclusion. This method can quickly and accurately detect whether there is grease in the bearing and whether there is flexibility, which can improve the degree of automation of bearing production, thereby improving production efficiency and ensuring product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 is a flow chart of the detection method of the present invention;

[0025] Figure 2 It is a schematic diagram of the overall structure of the detection device of the present invention;

[0026] Figure 3 is a side view of the detection device of the present invention;

[0027] Figure 4 It is a side view of the detection device of the present invention in a working state;

[0028] Figure 5 It is a structural schematic diagram of the rotating head of the present invention;

[0029] Figure 6 The schematic diagram of the structure of the clamping part of the present invention is

[0030] Among them, 1-first motor, 2-first cylinder, 3-conveyor belt, 4-second motor, 5-loading port, 6-rotating motor, 7-chute, 8-coupling, 9-sliding frame, 10-dynamic torque sensor, 11-rotating head, 1101-first shaft section, 1102-shaft shoulder, 12-hydraulic cylinder, 13-upper clamp, 14-lower clamp, 15-support pad, 16-second cylinder, 17-belt, 18-discharging port, 19-support plate, 20-baffle, 21-bracket, 22-clamping port. DETAILED DESCRIPTION

[0031] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] The present invention provides a device for detecting grease and flexibility in a bearing, comprising a bracket 21, on which a transport module, a rotation module, a measuring module and a flexible clamping module are installed; the rotation module is used to rotate the bearing at a predetermined speed and load, the measuring module is used to measure the torque value of the bearing under specific working conditions, the flexible clamping module is used for non-destructive clamping of the bearing, and the transport module is used for the input and output of the bearing.

[0034] Furthermore, the rotating module includes a rotating motor 6, a coupling 8 and a rotating head 11; the measuring module includes a sliding frame 9, a dynamic torque sensor 10 and a hydraulic cylinder 12; a slide groove 7 is fixedly installed on the bracket 21, the sliding frame 9 is slidably connected to the slide groove 7, the fixed end of the hydraulic cylinder 12 is fixedly installed on the bracket 21, and the movable end of the hydraulic cylinder 12 is fixedly connected to the sliding frame 9; the rotating motor 6 and the dynamic torque sensor 10 are both fixedly installed on the sliding frame 9, the rotating motor 6 is located above the dynamic torque sensor 10, and the dynamic torque sensor 10 is located above the rotating head 11; the rotating shaft of the rotating motor 6, the rotating shaft of the dynamic torque sensor 10 and the rotating head 11 are all transmission-connected via the coupling 8.

[0035] Furthermore, the conveying module includes a first conveying part and a second conveying part vertically arranged with respect to the first conveying part. The first conveying part includes a first motor 1, a first driving wheel, a first driven wheel, a conveying belt 3 and a first cylinder 2; the first motor 1 and the first cylinder 2 are both fixedly mounted on the bracket 21, the first driving wheel and the first driven wheel are both rotationally connected with the bracket 21, the first driving wheel is fixedly connected with the output shaft of the first motor 1, and the first driving wheel and the first driven wheel are transmission-connected via the conveying belt 3; the first cylinder 2 is located above the first driven wheel; a proximity switch is installed at the position of the first cylinder 2 to provide a trigger signal for the operation of the first cylinder 2; the second conveying part includes a second motor 4, a belt 17, a loading port 5 and a discharging port 18; Support plates 19 are provided on both sides of the belt 17, and the support plates 19 are fixedly mounted on the bracket 21, and the second motor 4 is fixedly connected to the support plates 19; a second driving wheel and a second driven wheel are rotatably connected to the support plates 19, and the second driving wheel is fixedly connected to the output shaft of the second motor 4, and the second driving wheel and the second driven wheel are transmission-connected through the belt 17; the loading port 5 and the discharging port 18 are both arranged parallel to the belt 17 and located directly above the belt 17; the loading port 5 and the discharging port 18 are both flush with the conveyor belt 3 and arranged perpendicularly to the conveyor belt 3; the first cylinder 2 is arranged corresponding to the loading port 5.

[0036] Furthermore, in order to prevent the bearing from falling, a baffle 20 is provided at the end of the conveyor belt 3 , and the baffle 20 is fixedly connected to the loading port 5 .

[0037] Furthermore, the flexible clamping module includes a support plate 15, a second cylinder 16 and a clamping portion; the support plate 15 is fixedly mounted on the bracket 21 directly below the rotating head 11, and the top surface of the support plate 15 is flush with the loading port 5; the clamping portion can clamp the bearing for transportation, and can also be used to fix the outer ring of the bearing during torque detection. The clamping portion includes an upper clamping plate 13 and a lower clamping plate 14, and the upper clamping plate 13 is slidably connected to the lower clamping plate 14; the fixed end of the second cylinder 16 is fixedly mounted on the lower clamping plate 14, and the movable end of the second cylinder 16 passes through the lower clamping plate 14 and is fixedly connected to the upper clamping plate 13; the lower clamping plate 14 is fixedly connected to the belt 17, and the lower clamping plate 14 is slidably connected to the support plate 19.

[0038] Furthermore, the upper clamping plate 13 and the lower clamping plate 14 are both provided with clamping openings 22 , and the clamping openings 22 are arranged corresponding to the rotating head 11 .

[0039] A detection method using a detection device for grease and flexibility in a bearing, comprising:

[0040] Step 1, make the bearing rotate at a predetermined speed and load; the hydraulic cylinder 12 pulls the entire sliding frame 9 to move downward, and when the first shaft section 1101 of the rotating head 11 is inserted into the circular hole of the inner ring of the bearing, and the shaft shoulder 1102 of the rotating head 11 is in contact with the upper end surface of the inner ring of the bearing, the hydraulic cylinder 12 stops working; at this time, the rotating motor 6 drives the dynamic torque sensor 10 to rotate, and the dynamic torque sensor 10 drives the rotating head 11 to rotate. When the speed reaches the set value, the torque value is collected and transmitted to the computer for analysis and judgment;

[0041] Step 2, determine whether the measured torque is not greater than the determination limit A; if the measured torque is not greater than the determination limit A, it is determined that the bearing is not greased; if it is greater than the determination limit A, proceed to the next step for determination;

[0042] Step 3, determine whether the measured torque is greater than the judgment limit A and less than the judgment limit B; if the measured torque is greater than the judgment limit A and less than the judgment limit B, it is determined that the bearing has been greased; if the measured torque is not less than the judgment limit B, it is determined that the bearing has flexibility problems or too much grease has been injected.

[0043] The bearing model is 6305 deep groove ball bearing. Before testing, the specific working conditions and judgment limits of the bearing must be determined first. The bearing is set to rotate at a predetermined speed and load of 500rpm. The average value of the measured torque is calculated by testing 50 bearings that have passed the grease injection test and is 250N.mm.

[0044] When the speed of the bearing reaches 500rpm, the dynamic torque sensor 10 transmits the measured torque to the computer for analysis and judgment. The difference between the torque corresponding to the greased bearing and the greased bearing is quite obvious. After the speed continues to increase, the torque of the greased and greased bearings will decrease. Combined with the actual situation of the bearing and the equipment itself, 500rpm is selected as the effective speed and specific working condition. At 500rpm, the average value of the torque corresponding to the greased bearing is 250N.mm. Taking into account the influence of factors such as the amount of grease, the judgment limit A is set to 200N.mm and the judgment limit B is set to 300N.mm. That is, when the torque actually detected by the dynamic torque sensor 10 at the bearing speed of 500rpm is not greater than 200N.mm, it is judged that the bearing is not injected with grease; when the torque actually detected by the dynamic torque sensor 10 at the bearing speed of 500pm is greater than 200N.mm and less than 300N.mm, it is judged that the bearing has been injected with grease; when the torque actually detected by the dynamic torque sensor 10 at the bearing speed of 500rpm is not less than 300N.mm, it is judged that the bearing has flexibility problems such as damage and jamming.

[0045] The detection principle of the above detection device is:

[0046] The first motor 1 rotates to drive the conveyor belt 3 to rotate. The bearing on the conveyor belt 3 moves forward under the action of static friction. When the bearing is transported to the position of the first cylinder 2, the proximity switch is triggered, and the first cylinder 2 pushes the bearing forward to enter the loading port 5. The upper clamping plate 13 and the lower clamping plate 14 are tightened under the action of the second cylinder 16 to clamp the bearing of the loading port 5. After clamping the bearing, the second motor 4 rotates to drive the belt 17 to move, thereby driving the clamping device to move to the bottom of the rotating head 11. When the bearing is directly under the rotating head 11, the second motor 4 stops rotating, and the hydraulic cylinder 12 pulls the entire sliding frame 9 to move downward along the slide 7, so that the first shaft section 1101 of the rotating head 11 fits with the inner ring of the bearing, and the shaft shoulder 1102 of the rotating head 11 fits with the end face of the inner ring of the bearing. The rotating motor 6 rotates at a certain speed, and under the action of the coupling 8, it drives the dynamic torque sensor 10 to rotate, and the dynamic torque sensor 10 drives the rotating head 11 to rotate under the action of the coupling 8. The rotating head 11 drives the inner ring of the bearing to rotate. When the dynamic torque sensor 10 collects the signal, it transmits the signal to the computer for processing and analysis. After the measurement is completed, the rotating motor 6 stops rotating, and the hydraulic cylinder 12 pushes the entire sliding frame 9 to move upward along the slide 7. When the rotating head 11 completely leaves the inner ring of the bearing, the bearing moves to the discharge port 18 under the action of the second motor 4. The cylinder on the clamping device pushes open the upper clamping plate 13, puts down the bearing, and the clamping device moves to the loading port 5 for the next clamping. The entire detection process realizes automated detection.

[0047] Calculation of internal friction in bearings: A more accurate calculation method can be given by a detailed analysis based on the root causes of friction. There are four different causes of friction in the bearing that need to be considered, including sliding friction, rolling friction, friction of seals, and friction caused by damage, jamming, etc. Therefore, the formula f = f1 + f2 + f3 + f4 is obtained, where f = total internal friction, f1 = rolling friction, f2 = sliding friction, f3 = friction of seals, and f4 = friction caused by damage, jamming, etc. This method determines each cause of friction in the bearing and combines these factors. In addition, the friction caused by seals and other additional causes can be added to calculate the total friction as needed.

[0048] Torque = force × lever arm, in Nm. When the lever arm remains unchanged, the force is proportional to the torque. For bearings injected with grease, when rotating, the internal resistance of the bearing = grease adhesion + total friction; for bearings not injected with grease, when rotating, the internal resistance of the bearing = total internal friction; for damaged and stuck bearings, there will be an additional friction f4 than normal bearings. It can be seen that compared with bearings not injected with grease, bearings injected with grease have an additional grease adhesion when rotating. According to torque = force × lever arm, when the lever arm remains unchanged, the greater the force, the greater the torque. Therefore, at the same speed, the torque of bearings injected with grease is greater than that of bearings not injected with grease. The torque of bearings with flexibility problems such as jamming and distortion is greater than that of bearings not injected with grease. The torque of bearings with flexibility problems such as jamming and distortion is distributed in two intervals. The first interval is: the torque of bearings not injected with grease is less than the torque of bearings with flexibility problems and less than the torque of bearings injected with grease; the second interval is that the torque of bearings with flexibility problems is greater than the torque of bearings injected with grease. Therefore, in the bearing flexibility detection problem of the present design, the main purpose is to distinguish defective bearings whose torque is greater than the torque of the greased bearings.

[0049] The rotational speed of the bearing is not limited to a certain value. The torque of the same bearing at different rotational speeds is different, and the torque of bearings of different models at the same rotational speed is also different. Therefore, while ensuring the measurement accuracy, different rotational speeds can be selected and the limit can be determined according to the above method.

[0050] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0051] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A device for detecting grease and flexibility in a bearing, comprising a bracket (21), characterized in that: The support (21) is provided with a transport module, a rotation module, a measurement module and a flexible clamping module; the rotation module is used to rotate the bearing at a predetermined speed and load, the measurement module is used to measure the torque value of the bearing under specific working conditions, the flexible clamping module is used to clamp the bearing without damage, and the transport module is used to input and output the bearing; The rotating module comprises a rotating motor (6), a coupling (8) and a rotating head (11); the measuring module comprises a sliding frame (9), a dynamic torque sensor (10) and a hydraulic cylinder (12); a slide groove (7) is fixedly mounted on the bracket (21), the sliding frame (9) is slidably connected to the slide groove (7), the fixed end of the hydraulic cylinder (12) is fixedly mounted on the bracket (21), and the movable end of the hydraulic cylinder (12) is fixedly connected to the sliding frame (9); the rotating motor (6) and the dynamic torque sensor (10) are both fixedly mounted on the sliding frame (9), the rotating motor (6) is located above the dynamic torque sensor (10), and the dynamic torque sensor (10) is located above the rotating head (11); the rotating shaft of the rotating motor (6), the rotating shaft of the dynamic torque sensor (10) and the rotating head (11) are all connected by transmission through the coupling (8); The conveying module includes a first conveying part and a second conveying part arranged vertically to the first conveying part; The first conveying part comprises a first motor (1), a first driving wheel, a first driven wheel, a conveying belt (3) and a first cylinder (2); the first motor (1) and the first cylinder (2) are both fixedly mounted on the bracket (21); the first driving wheel and the first driven wheel are both rotatably connected to the bracket (21); the first driving wheel is fixedly connected to the output shaft of the first motor (1); the first driving wheel and the first driven wheel are transmission-connected via the conveying belt (3); the first cylinder (2) is located above the first driven wheel; The second conveying part comprises a second motor (4), a belt (17), a loading port (5) and a discharging port (18); support plates (19) are arranged on both sides of the belt (17), the support plates (19) are fixedly mounted on the bracket (21), and the second motor (4) is fixedly connected to the support plates (19); a second driving wheel and a second driven wheel are rotatably connected to the support plates (19), the second driving wheel is fixedly connected to the output shaft of the second motor (4), and the second driving wheel and the second driven wheel are connected by transmission via the belt (17); the loading port (5) and the discharging port (18) are both arranged parallel to the belt (17); the loading port (5) and the discharging port (18) are both flush with the conveying belt (3) and are arranged perpendicular to the conveying belt (3); the first cylinder (2) is arranged corresponding to the loading port (5); A baffle (20) is provided at the end of the conveyor belt (3), and the baffle (20) is fixedly connected to the loading port (5); The flexible clamping module includes a supporting pad (15), a second cylinder (16) and a clamping portion; the supporting pad (15) is fixedly mounted on a bracket (21) directly below the rotating head (11), and the top end surface of the supporting pad (15) is flush with the loading port (5); the clamping portion includes an upper clamping plate (13) and a lower clamping plate (14), and the upper clamping plate (13) is slidably connected to the lower clamping plate (14); the fixed end of the second cylinder (16) is fixedly mounted on the lower clamping plate (14), and the movable end of the second cylinder (16) passes through the lower clamping plate (14) and is fixedly connected to the upper clamping plate (13); the lower clamping plate (14) is fixedly connected to the belt (17), and the lower clamping plate (14) is slidably connected to the supporting plate (19).

2. The device for detecting grease and flexibility in a bearing according to claim 1, characterized in that: The upper clamping plate (13) and the lower clamping plate (14) are both provided with clamping openings (22), and the clamping openings (22) are arranged corresponding to the rotating head (11).

3. A detection method using the detection device for bearing grease and flexibility according to any one of claims 1-2, characterized in that: include: Step 1, the bearing is rotated at a predetermined speed and load; the hydraulic cylinder (12) pulls the entire sliding frame (9) to move downward, and when the first shaft section (1101) of the rotating head (11) is inserted into the circular hole of the inner ring of the bearing, and the shaft shoulder (1102) of the rotating head (11) is in contact with the upper end surface of the inner ring of the bearing, the hydraulic cylinder (12) stops working; at this time, the rotating motor (6) drives the dynamic torque sensor (10) to rotate, and the dynamic torque sensor (10) drives the rotating head (11) to rotate. When the speed reaches the set value, the torque value is collected and transmitted to the computer for analysis and judgment; Step 2, determining whether the measured torque is not greater than a determination limit A; If the measured torque is not greater than the judgment limit A, it is determined that the bearing is not greased. If it is greater than the judgment limit A, proceed to the next step for judgment; Step 3, determine whether the measured torque is greater than the judgment limit A and less than the judgment limit B; if the measured torque is greater than the judgment limit A and less than the judgment limit B, it is determined that the bearing has been greased; if the measured torque is not less than the judgment limit B, it is determined that the bearing has flexibility problems or too much grease has been injected.

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