Portable bearing connecting rod looseness detection device

Abstract

The present invention relates to the technical field of bearing maintenance. Disclosed is a portable bearing connecting rod looseness detection device, comprising a transmission bearing, wherein the transmission bearing comprises a bearing outer ring and a bearing inner ring, a connecting rod is mounted at the position of the bearing inner ring, and a detection assembly is mounted on the bearing outer ring, the detection assembly comprising a detection housing; and a detection module is embedded at the bottom of the detection housing, and the detection module is located above the bearing inner ring. The detection device further comprises an external driving assembly and a remote terminal, wherein the remote terminal comprises a data collection module and a central processing unit. The data collection module is in communication connection with the external driving assembly and the detection module, respectively. The central processing unit is electrically connected to the data collection module, and the central processing unit can receive and process values collected by the data collection module and make corresponding determinations. The present invention has the advantages of high displacement measurement accuracy, accurate result determination, and reduced determination difficulty.

Description

Portable bearing connecting rod looseness detection device TECHNICAL FIELD

[0001] The present application relates to a portable bearing connecting rod looseness detection device, belonging to the technical field of bearing maintenance. BACKGROUND

[0002] Rotary machinery generally refers to mechanical equipment that completes work through rotary motion. They are widely used in various industries. At present, the connecting rods of common rotary machinery are mostly installed in corresponding rotary machinery through connecting structures such as transmission bearing cooperation with clamp block-screw, direct connection, etc.

[0003] The transmission bearing applied to the connecting rod structure may have the problem of insufficient pre-tightening force between the inner ring of the bearing and the end of the connecting rod, or poor lubrication and wear during the operation, rotation and vibration of the rotary machinery, resulting in looseness of the connecting position of the connecting rod and the inner ring of the transmission bearing, causing relative motion of the connecting rod compared to the inner ring of the transmission bearing, and finally leading to inconsistency between the transmission rotation amount output by the external driving assembly and the actual rotation amount of the connecting rod, thereby having a significant impact on the normal operation of the rotary machinery.

[0004] Therefore, after the rotary machinery has been operated for a period of time, the connecting relationship between the transmission bearing and the connecting rod needs to be maintained accordingly to avoid the above-mentioned situation. In the prior art, the maintenance of the connecting relationship between the transmission bearing and the connecting rod often uses the method of marking with a drawing pen to monitor the displacement amount. After corresponding marks are drawn on the transmission bearing and the connecting rod, respectively, and after the rotary machinery has been operated for a period of time, the positions of the marks on the transmission bearing and the connecting rod are compared to determine whether looseness occurs between the transmission bearing and the connecting rod. Although the method is very simple to maintain, it requires the operator to make a judgment by experience when making a judgment, i.e., the operator needs to make a judgment on whether looseness occurs between the transmission bearing and the connecting rod according to the difference between the two marks and in combination with the corresponding deviation range, which has the problems of poor displacement measurement accuracy, dependence on experience for maintenance judgment and high difficulty in judgment. At the same time, the marking method with a drawing pen is not suitable for structures with complex conditions such as dust accumulation, water accumulation and oil accumulation, which has the problem of insufficient applicability. SUMMARY

[0005] In order to solve the above-mentioned problems existing in the prior art, the present application provides a portable bearing connecting rod looseness detection device.

[0006] The technical scheme of the present application is as follows:

[0007] The utility model provides a portable bearing connecting rod loosening detection device, including transmission bearing, transmission bearing includes bearing outer ring and bearing inner race, the connecting rod is installed in the position of bearing inner race, detection assembly is installed on bearing outer ring, detection assembly includes detection casing, the bottom of detection casing is embedded with detection module, detection module is located above bearing inner race, and detection module is used for detecting the number of revolutions of bearing inner race, the detection device still includes the external drive assembly for driving connecting rod to rotate and remote terminal for data processing, and remote terminal includes data acquisition module and central processing unit, data acquisition module is connected with external drive assembly and detection module in communication respectively to gather the transmission rotation amount of external drive assembly output and the number of revolutions of bearing inner race detected by detection module, and central processing unit is electrically connected with data acquisition module, and central processing unit can receive and handle the value obtained by data acquisition module, and make corresponding judgement.

[0008] Further, the remote terminal further comprises a first display module electrically connected with the central processing unit, and the first display module is used for displaying the judgment result made by the central processing unit.

[0009] Further, the transmission bearing is symmetrically arranged, the detection casing is arranged on the two transmission bearings, the detection modules are symmetrically arranged on the bottom of the detection casing, and the two detection modules are arranged above the corresponding bearing inner races to detect the number of revolutions of the corresponding bearing inner races.

[0010] Further, the detection casing is detachably connected with the transmission bearing through the connecting assembly.

[0011] Further, the connecting assembly comprises flexible straps, the flexible straps are arranged in pairs on the detection casing, the same pair of flexible straps are arranged on the front and rear outer walls of the detection casing, one end of the flexible strap is fixedly connected with the corresponding outer wall of the detection casing, and the other end of the flexible strap is tied with the corresponding flexible strap to connect the detection casing to the transmission bearing.

[0012] Further, the connecting assembly comprises a connecting frame arranged in an L-shaped structure, one end of the connecting frame is fixedly arranged on the side wall of the detection shell, the connecting frame cooperates with the detection shell to form an n-shaped connecting structure, the transmission bearing is arranged in the interior of the connecting structure, one side wall of the transmission bearing abuts against the detection shell, the top wall of the transmission bearing abuts against the bottom wall of the horizontal section structure of the connecting frame, the other end of the connecting frame is provided with a compression screw, the compression screw is threadedly connected to the vertical section structure of the connecting frame, and the tip of the compression screw can be compressed against the other side wall of the transmission bearing after penetrating through the vertical section structure of the connecting frame.

[0013] Further, the vertical section structure of the connecting frame is provided with a positioning block close to the side wall of the side of the transmission bearing, the positioning block is connected to the connecting frame through a spring, the compression screw is movably arranged through the positioning block, and the positioning block close to the side wall of the side of the transmission bearing can abut against the transmission bearing under the action of the spring.

[0014] Further, the bottom of the positioning block is provided with an auxiliary inclined surface close to the side of the transmission bearing.

[0015] Further, the connecting frame comprises a first frame body and a second frame body, the first frame body is horizontally arranged, the detection shell is connected with the first frame body, and the end of the first frame body away from the detection shell is provided with a sliding groove inwardly opened; the second frame body is vertically arranged, the second frame body is provided with a sliding block on the side wall close to the first frame body, the sliding block is slidably connected in the sliding groove, and an adjusting bolt is further arranged in the sliding groove; one end of the adjusting bolt is rotatably connected with the groove bottom wall of the sliding groove, the other end of the adjusting bolt movably penetrates through the sliding block and the second frame body and outwardly penetrates out from the side wall of the second frame body away from the first frame body, an adjusting nut is further threadedly connected on the adjusting bolt, and the adjusting nut is fixedly connected with the sliding block.

[0016] Further, the detection module is a rotary encoder, an optical sensor or a Hall sensor.

[0017] The present application has the following beneficial effects:

[0018] The application can count the number of rotations of the bearing inner ring by installing a detection assembly on the bearing outer ring, and the remote terminal can collect the transmission rotation amount output by the external driving assembly and the number of rotations of the bearing inner ring detected by the detection module, and the central processor in the remote terminal can process the data collected by the data acquisition module, calculate the difference between the transmission rotation amount output by the external driving assembly and the number of rotations of the bearing inner ring, and compare the calculated difference with the threshold value preset by itself, so as to determine whether the connection between the connecting rod and the bearing inner ring is loose. Compared with the traditional drawing pen marking method, the displacement measurement is accurate, and the obtained judgment result is also very accurate, which has the advantages of high displacement measurement accuracy, accurate result judgment and reduced judgment difficulty.

[0019] The detection device can be well installed on the transmission bearing in complex working conditions such as dust accumulation, water accumulation and oil accumulation, so as to perform corresponding detection work, and has the advantage of good applicability compared with the traditional drawing pen marking method. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 is a schematic diagram of the module composition of the application;

[0021] Fig. 2 is a schematic diagram of the structure of the first embodiment of the application;

[0022] Fig. 3 is a sectional view of the first embodiment of the application;

[0023] Fig. 4 is a schematic diagram of the structure of the second embodiment of the application;

[0024] Fig. 5 is a side view of the connecting frame in the second embodiment of the application;

[0025] Fig. 6 is an enlarged view of A;

[0026] Fig. 7 is a first sectional view of the connecting frame in the second embodiment of the application;

[0027] Fig. 8 is a second sectional view of the connecting frame in the second embodiment of the application.

[0028] The reference signs in the drawings are as follows:

[0029] Transmission bearing; 2, bearing outer ring; 3, bearing inner ring; 4, connecting rod;

[0030] Detection assembly; 51, detection shell; 52, detection module; 53, second display module;

[0031] external drive assembly

[0032] remote terminal; 71, data acquisition module; 72, central processor; 73, first display module

[0033] 8, flexible band; 9, connecting frame; 10, compression screw; 11, positioning block; 12, spring; 13, auxiliary inclined surface; 14, first frame body; 15, second frame body; 16, sliding groove; 17, sliding block; 18, adjusting bolt; 19, adjusting nut. DETAILED DESCRIPTION

[0034] The application will be described in detail below with reference to the drawings and specific embodiments.

[0035] The application provides a portable bearing connecting rod looseness detection device, which comprises a transmission bearing 1, the transmission bearing 1 comprises a bearing outer ring 2 and a bearing inner ring 3, the connecting rod 4 is arranged at the bearing inner ring 3 in position, and the bearing inner ring 3 can rotate when the connecting rod 4 rotates. The detection assembly 5 is arranged on the bearing outer ring 2, the detection assembly 5 comprises a detection shell 51, the bottom of the detection shell 51 is embedded with a detection module 52, the detection module 52 is located above the bearing inner ring 3, and the detection module 52 is used for detecting the number of rotations of the bearing inner ring 3. The detection module 52 can be a rotary encoder, an optical sensor or a Hall sensor commonly used in the prior art, and can be selected according to actual conditions. If the rotary encoder is selected, an incremental encoder can be selected, which can count the number of rotations of the bearing inner ring 3 through an output pulse signal, if the optical sensor is selected, an optical mark needs to be arranged on the bearing inner ring 3, and the optical sensor counts the number of rotations of the bearing inner ring 3 by detecting the passing of the optical mark, if the Hall sensor is selected, a magnetic mark needs to be arranged on the bearing inner ring 3, and the Hall sensor counts the number of rotations of the bearing inner ring 3 by detecting the change of the magnetic field between the magnetic mark and the Hall sensor.

[0036] The detection device further comprises an external driving assembly 6 for driving the connecting rod 4 to rotate and a remote terminal 7 for data processing, the remote terminal 7 comprising a data acquisition module 71 and a central processor 72, the data acquisition module 71 being communicatively connected with the external driving assembly 6 and the detection module 52 respectively so as to be able to acquire the transmission rotation amount output by the external driving assembly 6 and the rotation number of the bearing inner ring 3 detected by the detection module 52, and the central processor 72 being electrically connected with the data acquisition module 71, the central processor 72 being capable of receiving and processing the values acquired by the data acquisition module 71 by carrying corresponding degrees and making corresponding judgments. Specifically, the central processor 72 acquires and processes the above data acquired by the data acquisition module 71, calculates the difference between the transmission rotation amount output by the external driving assembly 6 and the rotation number of the bearing inner ring 3, and compares the calculated difference with a threshold value preset by itself, that is, whether the connection between the connecting rod 4 and the bearing inner ring 3 is loose can be judged. If the calculated difference is greater than the threshold value preset by itself, it means that the connection between the connecting rod 4 and the bearing inner ring 3 is loose, and maintenance work is carried out in time. If the calculated difference is not greater than the threshold value preset by itself, it means that the connection between the connecting rod 4 and the bearing inner ring 3 is good, and maintenance work is not needed. The threshold value preset by the central processor 72 can be set according to the actual situation, such as the type of the rotating machine, which is not limited here.

[0037] In order for the operator to know the judgment result, the remote terminal 7 further comprises a first display module 73, the first display module 73 being a common display screen, the first display module 73 being electrically connected with the central processor 72, and the first display module 73 being used for displaying the judgment result made by the central processor 72, so that the operator can know whether maintenance work is needed by reading the judgment result displayed on the first display module 73.

[0038] Embodiment one: please refer to FIG. 2 and FIG. 3, this embodiment takes a common double connecting rod mechanism as an example, and provides a portable bearing connecting rod looseness detection device, which comprises the aforementioned detection assembly 5 as well as the external driving assembly 6 and the remote terminal 7. The double connecting rod mechanism comprises two transmission bearings 1 arranged symmetrically, each of the two transmission bearings 1 comprising a bearing outer ring 2 and a bearing inner ring 3, and each of the bearing inner rings 3 of the two transmission bearings 1 being installed with a connecting rod 4. The detection shell 51 is arranged on the two transmission bearings 1, the detection modules 52 are symmetrically arranged at the bottom of the detection shell 51, and the two detection modules 52 are arranged above the corresponding bearing inner rings 3 so as to be able to detect the rotation number of the corresponding bearing inner rings 3, and the top of the detection shell 51 is further provided with a second display module 53, the second display module 53 being a common display screen, the second display module 53 being electrically connected with the two detection modules 52 together, and the second display module 53 being used for displaying the values detected by the two detection modules 52.

[0039] Through the foregoing arrangement, when the detection device is used in the double connecting rod mechanism, the operator can judge whether the maintenance work needs to be performed by reading the judgment result displayed on the first display module 73, or without using the remote terminal 7, by reading the number of rotations of the two bearing inner rings 3 displayed on the second display module 53, whether the difference between the number of rotations of the two bearing inner rings 3 is reasonable, that is, whether the corresponding connecting rod 4 and the bearing inner ring 3 need to be maintained, which can be very convenient for the operator to use. Whether the difference between the number of rotations of the two bearing inner rings 3 is reasonable can be realized by setting the range of the difference, if the difference between the number of rotations of the two bearing inner rings 3 falls within the corresponding difference range, it means that the maintenance work can not be performed, if the difference between the number of rotations of the two bearing inner rings 3 does not fall within the corresponding difference range, it means that there may be a fault, and maintenance should be performed. The set range of the difference can be determined according to the actual situation.

[0040] In order to facilitate the disassembly and assembly of the detection shell 51, in the embodiment, the detection shell 51 is detachably connected with the transmission bearing 1 through the setting of the connecting assembly. The connecting assembly includes flexible straps 8, which are arranged in pairs on the detection shell 51. The same pair of flexible straps 8 is arranged on the front and rear side walls of the detection shell 51. In order to ensure the connection effect, the number of flexible straps 8 is two pairs, one pair of flexible straps 8 corresponds to one transmission bearing 1, one end of the flexible strap 8 is fixedly connected with the corresponding side wall of the detection shell 51, and the other end is tied with the corresponding flexible strap 8, so that the detection shell 51 can be detachably connected to the transmission bearing 1, so that the detection shell 51 can be adaptively detected. When it is necessary to remove the detection shell 51, the connection of the flexible strap 8 can be released, so that the detection shell 51 can be detached from the transmission bearing 1. The length and material of the flexible strap 8 can be determined according to the actual situation. In the embodiment, the flexible strap 8 can be made of woven tape or nylon material, which has good wear resistance and toughness, so as to avoid the phenomenon of breaking.

[0041] In the embodiment two, please refer to FIG. 4-8, the embodiment provides a portable bearing connecting rod loose detection device, which is different from the embodiment one in the connection assembly. Specifically, the connection assembly comprises a connection frame 9 arranged in an L-shaped structure, one end of the connection frame 9 is fixedly arranged on the side wall of the detection shell 51, the connection frame 9 cooperates with the detection shell 51 to form an n-shaped connection structure, the transmission bearing 1 is arranged in the inside of the connection structure, one side wall of the transmission bearing 1 abuts against the detection shell 51, the top wall of the transmission bearing 1 abuts against the bottom wall of the horizontal section structure of the connection frame 9, the other end of the connection frame 9 is provided with a compression screw 10, the compression screw 10 is threadedly connected to the vertical section structure of the connection frame 9, and the nail tip of the compression screw 10 can abut against the other side wall of the transmission bearing 1 after penetrating through the vertical section structure of the connection frame 9.

[0042] Through the foregoing arrangement, when it is needed to install the detection shell 51 to the transmission bearing 1, the left side wall of the transmission bearing 1 abuts against the right side wall of the detection shell 51, the top wall of the transmission bearing 1 abuts against the bottom wall of the connection frame 9, then the nail tip of the compression screw 10 abuts against the right side wall of the transmission bearing 1 by rotating the compression screw 10, so that the installation of the detection shell 51 can be completed. When the size of the transmission bearing 1 changes, the length of the nail tip of the compression screw 10 extending out of the vertical section structure of the connection frame 9 is adjusted by rotating the compression screw 10, so that the installation of transmission bearings 1 with various sizes can be adapted, thereby improving the applicability of the detection device.

[0043] For the convenience of installing the detection shell 51, the vertical section structure of the connecting frame 9 is provided with a positioning block 11 close to the side wall of the transmission bearing 1 side, the positioning block 11 is connected to the connecting frame 9 through the spring 12, the compression screw 10 is movably arranged through the positioning block 11, the side wall close to the transmission bearing 1 side of the positioning block 11 can abut against the transmission bearing 1 under the action of the spring 12, and the bottom of the positioning block 11 is provided with an auxiliary inclined surface 13 close to the position of the side wall of the transmission bearing 1 side. Through the foregoing arrangement, when the detection shell 51 is installed, the n-shaped connecting structure formed by the connecting frame 9 and the detection shell 51 is buckled to the top of the transmission bearing 1, in this process, if the width of the transmission bearing 1 is greater than the distance between the positioning block 11 and the detection shell 51, the transmission bearing 1 will be in contact with the auxiliary inclined surface 13, and under the action of the auxiliary inclined surface 13, the transmission bearing 1 can push away the positioning block 11 and enter the connecting structure, at this time, the left side wall of the transmission bearing 1 abuts against the right side wall of the detection shell 51, the top wall of the transmission bearing 1 abuts against the bottom wall of the connecting frame 9, and the left side wall of the positioning block 11 abuts against the right side wall of the transmission bearing 1 under the action of the spring 12, so that the detection shell 51 can be positioned on the transmission bearing 1, so as to avoid the falling phenomenon of the detection shell 51 and the connecting frame 9, and then the detection shell 51 is adjusted to the appropriate position, and the compression screw 10 is locked to fix the detection shell 51 on the transmission bearing 1.

[0044] In order to further expand the applicability of the detection device, in the embodiment, the connecting frame 9 comprises a first frame body 14 and a second frame body 15, the first frame body 14 is horizontally arranged, the detection shell 51 is fixedly connected with the left end of the first frame body 14, and the end of the first frame body 14 away from the detection shell 51 is provided with a sliding groove 16 inwardly. The second frame body 15 is vertically arranged, and the compression screw 10 and the spring 12 are arranged on the second frame body 15. The side wall close to the first frame body 14 of the second frame body 15 is provided with a sliding block 17, the sliding block 17 is slidingly connected in the sliding groove 16, and the sliding groove 16 is further provided with an adjusting bolt 18, one end of the adjusting bolt 18 is rotatably connected with the groove bottom wall of the sliding groove 16, the other end is movably penetrated through the sliding block 17 and the second frame body 15 and outwardly penetrates from the side wall of the second frame body 15 away from the first frame body 14, and the adjusting bolt 18 is further threadedly connected with an adjusting nut 19, and the adjusting nut 19 is fixedly connected with the sliding block 17.

[0045] Through the foregoing arrangement, by rotating the adjusting bolt 18, the sliding block 17 will not rotate under the restriction of the sliding groove 16, so that the adjusting nut 19 will not rotate either. To adapt to the rotation of the adjusting bolt 18, the adjusting nut 19 will move along the adjusting bolt 18, thereby driving the sliding block 17 to slide along the adjusting bolt 18 in the sliding groove 16, so as to adjust the distance between the first frame body 14 and the second frame body 15, thereby adjusting the distance between the positioning block 11 and the detection housing 51, so that the detection device can adapt to the installation of more sizes of transmission bearings 1.

[0046] The above description is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is made by using the content of the specification and drawings of the present application, is also included in the patent protection scope of the present application.

Claims

1. A portable bearing connecting rod looseness detection device, comprising a transmission bearing (1), the transmission bearing (1) comprising a bearing outer ring (2) and a bearing inner ring (3), the bearing inner ring (3) being provided with a connecting rod (4) mounted in position, characterized in that: The bearing outer ring (2) is provided with a detection assembly (5), the detection assembly (5) comprises a detection shell (51), the bottom of the detection shell (51) is provided with a detection module (52) in an embedded manner, the detection module (52) is located above the bearing inner ring (3), and the detection module (52) is used for detecting the number of revolutions of the bearing inner ring (3); The detection device further comprises an external driving assembly (6) for driving the connecting rod (4) to rotate and a remote terminal (7) for data processing, the remote terminal (7) comprises a data acquisition module (71) and a central processor (72), the data acquisition module (71) is in communication connection with the external driving assembly (6) and the detection module (52) respectively, so as to acquire the transmission rotation amount output by the external driving assembly (6) and the number of revolutions of the bearing inner ring (3) detected by the detection module (52), and the central processor (72) is in electric connection with the data acquisition module (71), the central processor (72) can receive and process the values acquired by the data acquisition module (71), and make corresponding judgments.

2. A portable bearing link looseness detection device according to claim 1, characterized in that: The remote terminal (7) further comprises a first display module (73), the first display module (73) is in electric connection with the central processor (72), and the first display module (73) is used for displaying the judgment result made by the central processor (72).

3. A portable bearing link looseness detection device according to claim 1, characterized in that: The transmission bearing (1) is symmetrically arranged, the detection shell (51) is arranged on the two transmission bearings (1), the detection modules (52) are symmetrically arranged on the bottom of the detection shell (51), the two detection modules (52) are arranged above the corresponding bearing inner rings (3) to detect the number of revolutions of the corresponding bearing inner rings (3), and the top of the detection shell (51) is further provided with a second display module (53), the second display module (53) is in electric connection with the two detection modules (52), and the second display module (53) is used for displaying the values detected by the two detection modules (52).

4. The portable bearing link looseness detection device of claim 1, wherein: The detection shell (51) is detachably connected with the transmission bearing (1) through the connecting assembly.

5. A portable bearing link looseness detection device according to claim 4, characterized in that: The connecting assembly comprises flexible bands (8), the flexible bands (8) are arranged in pairs on the detection shell (51), the same pair of flexible bands (8) are arranged on the front and rear side outer walls of the detection shell (51), one end of the flexible band (8) is fixedly connected with the corresponding side outer wall of the detection shell (51), and the other end is tied with the corresponding flexible band (8) to connect the detection shell (51) to the transmission bearing (1).

6. A portable bearing link looseness detection device according to claim 4, characterized in that: The connecting assembly comprises a connecting frame (9) arranged in an L-shaped structure, one end of the connecting frame (9) is fixedly arranged on the side wall of the detection shell (51), the connecting frame (9) cooperates with the detection shell (51) to form an n-shaped connecting structure, the transmission bearing (1) is arranged in the connecting structure, one side wall of the transmission bearing (1) abuts against the detection shell (51), the top wall of the transmission bearing (1) abuts against the bottom wall of the horizontal section of the connecting frame (9), the other end of the connecting frame (9) is provided with a compression screw (10), the compression screw (10) is threadedly connected to the vertical section of the connecting frame (9), and the tip of the compression screw (10) can be compressed against the other side wall of the transmission bearing (1) after penetrating through the vertical section of the connecting frame (9).

7. A portable bearing link looseness detection device according to claim 6, characterised in that: The side wall of the vertical section of the connecting frame (9) close to the transmission bearing (1) is provided with a positioning block (11), the positioning block (11) is connected to the connecting frame (9) through a spring (12), the compression screw (10) is movably arranged through the positioning block (11), and the side wall of the positioning block (11) close to the transmission bearing (1) can abut against the transmission bearing (1) under the action of the spring (12).

8. A portable bearing link looseness detection device according to claim 7, characterized in that: An auxiliary inclined surface (13) is arranged at the position of the bottom of the positioning block (11) close to the transmission bearing (1).

9. The portable bearing link looseness detection device of claim 6, wherein: The connecting frame (9) comprises a first frame body (14) and a second frame body (15), the first frame body (14) is arranged horizontally, the detection shell (51) is connected with the first frame body (14), and the end of the first frame body (14) away from the detection shell (51) is provided with a sliding groove (16) inwardly; the second frame body (15) is arranged vertically, the second frame body (15) is provided with a sliding block (17) on the side wall close to the first frame body (14), the sliding block (17) is slidably connected in the sliding groove (16), and an adjusting bolt (18) is further arranged in the sliding groove (16); one end of the adjusting bolt (18) is rotatably connected with the groove bottom wall of the sliding groove (16), the other end of the adjusting bolt (18) movably penetrates through the sliding block (17) and the second frame body (15) and outwardly penetrates out from the side wall of the second frame body (15) away from the first frame body (14), and an adjusting nut (19) is threadedly connected on the adjusting bolt (18), and the adjusting nut (19) is fixedly connected with the sliding block (17).

10. The portable bearing link looseness detection device of claim 1, wherein: The detection module (52) is a rotary encoder, an optical sensor or a Hall sensor.

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