CN-224230962-U - Bearing clearance detection device and bearing clearance detection system for pump

Abstract

The utility model discloses a bearing clearance detection device and a bearing clearance detection system for a pump, which are used for detecting the axial clearance of a bearing arranged on a pump shaft, and comprise a adapter plate, a bearing box, a connecting plate and a connecting plate, wherein the adapter plate is sleeved on the bearing box at the outer side of the bearing to be detected; the device comprises a mounting mechanism, an air cylinder, an air valve control mechanism, a pump connection adapter, a detection piece and a detection piece, wherein the air cylinder is connected to the mounting mechanism and provided with a first interface and a second interface, the first interface is connected with a first air pipe, the second interface is connected with a second air pipe, the air valve control mechanism is used for controlling air in and out of the first air pipe and the second air pipe to flow so as to drive an output shaft of the air cylinder to do reciprocating linear motion along the axial direction of a pump shaft, one end of the pump connection adapter is used for being connected with the pump shaft, and the other end of the pump connection adapter is in transmission connection with the output shaft of the air cylinder, and the detection piece is used for obtaining axial clearance of a bearing to be detected. The utility model can be used to detect the axial play of a bearing mounted on a pump shaft.

Inventors

• Wei Jinbu
• Fu Qinggen
• HU GUANGYAO
• Kou Fubing

Assignees

• 苏州苏尔寿泵业有限公司

Dates

Publication Date

20260512

Application Date

20260408

Claims (12)

1. 1. A bearing play detection device for a pump for detecting an axial play of a bearing mounted on a pump shaft, the bearing play detection device for a pump comprising: The switching disc is sleeved on the bearing box at the outer side of the bearing to be detected, and a central hole for penetrating the pump shaft is formed in the middle of the switching disc; The mounting mechanism is connected to the adapter plate; The air cylinder is arranged on the mounting mechanism and is provided with a first interface and a second interface, the first interface is connected with a first air pipe, and the second interface is connected with a second air pipe; The air valve control mechanism is used for controlling the air inlet and outlet flowing states of the first air pipe and the second air pipe so as to drive the output shaft of the air cylinder to do reciprocating linear motion along the axial direction of the pump shaft; The pump connecting adapter is characterized in that one end of the pump connecting adapter is used for connecting the pump shaft, and the other end of the pump connecting adapter is in transmission connection with an output shaft of the air cylinder; and the detection piece is used for acquiring the axial clearance of the bearing to be detected.
2. 2. A pump bearing play detection device as set forth in claim 1, wherein the mounting mechanism includes a cylinder block and a leg, The cylinder support comprises a mounting table, and a mounting hole for penetrating an output shaft of the cylinder is formed in the middle of the mounting table; The supporting legs are arranged between the mounting table and the switching disc.
3. 3. The pump bearing play detection device according to claim 2, wherein a limit mechanism is provided between the pump connection adapter and the output shaft of the cylinder, the limit mechanism comprising: the limiting slide rail extends longitudinally along the axial direction of the pump shaft, one end of the limiting slide rail is connected with the mounting table, and the other end of the limiting slide rail is connected with the adapter plate; The limiting support is slidably arranged on the limiting slide rail; and the switching component is arranged on the limiting support and is respectively connected with the output shaft of the air cylinder and the pump connecting switching piece.
4. 4. The device for detecting bearing play for a pump according to claim 3, wherein the adapter assembly comprises a cylinder connecting screw, a stopper and a stopper connecting member which are sequentially arranged along an axial direction of the pump shaft, One end of the cylinder connecting screw is connected with the output shaft of the cylinder, and the other end of the cylinder connecting screw is arranged in the limiting block in a penetrating way; One end of the limiting connecting piece is arranged in the limiting block in a penetrating way, can rotate relative to the limiting block but cannot move radially relative to the limiting block, and the other end of the limiting connecting piece is connected with the pump connecting adapter piece.
5. 5. The device for detecting bearing play for a pump according to claim 4, wherein the limit connecting member comprises a limit connecting rod and a limit transfer connecting rod which are detachably connected, one end of the limit connecting rod is arranged in the limit block in a penetrating manner, can rotate circumferentially relative to the limit block but cannot move radially relative to the limit block, the other end of the limit connecting rod is connected with the limit transfer connecting rod, one end of the limit transfer connecting rod is detachably connected with the limit connecting rod, and the other end of the limit connecting rod is detachably connected with the pump connection transfer member.
6. 6. The pump bearing play detection device according to claim 5, wherein the stopper is detachably mounted on the stopper mount having opposite first and second surfaces along an axial direction of the pump shaft, the stopper including a first stopper located on one side of the first surface and a second stopper located on one side of the second surface; A first limiting groove is formed in the first limiting block, a first clamping part is convexly arranged in the radial direction of the cylinder connecting screw rod, the first clamping part is in clearance fit with the first limiting groove, and the first clamping part is rotatably arranged in the first limiting groove; The second limiting block is internally provided with a second limiting groove, the radial direction of the limiting connecting rod is convexly provided with a second clamping part, the second clamping part is in clearance fit with the second limiting groove, and the second clamping part is rotatably arranged in the second limiting groove.
7. 7. The pump bearing play detection device according to claim 1, wherein the cylinder is a bidirectional cylinder, and the first air pipe and the second air pipe are both intake and exhaust pipes.
8. 8. The device for detecting bearing play for a pump as defined in claim 7, wherein said air valve control mechanism includes an air valve seat connected to said first air tube and said second air tube, said air valve seat being provided with an air inlet and an air outlet, and an air valve switch for controlling a communication relationship between said air inlet, said air outlet, and said first air tube and said second air tube.
9. 9. The pump bearing play detection device according to claim 1, wherein the adapter plate is provided with a plurality of rings of connecting holes at intervals along the radial direction, the diameters and the hole site pitches of the plurality of rings of connecting holes are different, and the plurality of rings of connecting holes are used for adapting to bearing boxes with different outer diameter sizes.
10. 10. The bearing play detection device for a pump according to claim 1, wherein the detection member includes a displacement sensor for measuring an amount of displacement corresponding to when the bearing is automatically reset after moving to a limit position.
11. 11. The pump bearing play detection device according to claim 1, wherein the mounting mechanism is further provided with a lifting hole.
12. 12. A bearing play detection system, characterized in that it comprises a bearing play detection device for a pump according to any one of claims 1 to 11.

Description

Bearing clearance detection device and bearing clearance detection system for pump Technical Field The utility model relates to the technical field of bearing clearance, in particular to a bearing clearance detection device for a pump and a bearing clearance detection system. Background The bearing is one of the most important rotating parts in the pump assembly and plays a very important role in the normal operation of the pump. The bearing play is also referred to as a bearing play, and mainly means a movement amount when one of an inner ring and an outer ring of the bearing is fixed when the bearing is not mounted on the shaft or the bearing housing, and then the other of the bearing play is moved in a radial direction or an axial direction. According to the direction of movement, radial play and axial play can be divided. The size of the play during operation affects the rolling fatigue life, temperature rise, noise, vibration and other performances of the bearing. Bearing play is one of the key indexes for enabling the bearing to normally and stably run, and accurate detection of the bearing play is important. However, for bearings mounted on pumps, there is currently a lack of a dedicated detection device to achieve the detection of their axial play. Therefore, there is a need to provide a bearing play detection device and a bearing play detection system for a pump, which solve at least one of the above problems. It should be noted that the foregoing description of the background art is only for the purpose of providing a clear and complete description of the technical solution of the present application and is presented for the convenience of understanding by those skilled in the art. The above-described solutions are not considered to be known to the person skilled in the art simply because they are set forth in the background of the application section. Disclosure of utility model In view of the defects existing in the prior art, the embodiment of the utility model provides a bearing clearance detection device and a bearing clearance detection system for a pump, which can be used for detecting the axial clearance of a bearing mounted on a pump shaft. The specific technical scheme of the embodiment of the utility model is as follows: the bearing clearance detection device for the pump is used for detecting axial clearance of a bearing mounted on a pump shaft and comprises a switching disc, a mounting mechanism, a cylinder, a valve control mechanism and a pump connection adapter, wherein the switching disc is sleeved on a bearing box on the outer side of the bearing to be detected, a central hole for penetrating the pump shaft is formed in the middle of the switching disc, the mounting mechanism is connected to the switching disc, the cylinder is mounted on the mounting mechanism and is provided with a first interface and a second interface, the first interface is connected with a first air pipe, the second interface is connected with a second air pipe, the valve control mechanism is used for controlling air inlet and outlet flowing states of the first air pipe and the second air pipe so as to drive an output shaft of the cylinder to do reciprocating linear motion along the axial direction of the pump shaft, one end of the pump connection adapter is used for being connected with the pump shaft, the other end of the pump connection adapter is in transmission connection with the output shaft of the cylinder, and the detection piece is used for obtaining the axial clearance of the bearing to be detected. In a preferred embodiment, the mounting mechanism comprises a cylinder support and a supporting leg, the cylinder support comprises a mounting table, a mounting hole for penetrating the output shaft of the cylinder is formed in the middle of the mounting table, and the supporting leg is arranged between the mounting table and the adapter plate. In a preferred embodiment, a limiting mechanism is arranged between the pump connection adapter and the output shaft of the air cylinder, the limiting mechanism comprises a limiting sliding rail, a limiting support seat and a switching assembly, the limiting sliding rail extends longitudinally along the axial direction of the pump shaft, one end of the limiting sliding rail is connected with the mounting table, the other end of the limiting sliding rail is connected with the switching disc, the limiting support seat is slidably arranged on the limiting sliding rail, and the switching assembly is mounted on the limiting support seat and is connected with the output shaft of the air cylinder and the pump connection adapter respectively. In a preferred embodiment, the switching assembly comprises a cylinder connecting screw, a limiting block and a limiting connecting piece, wherein the cylinder connecting screw, the limiting block and the limiting connecting piece are sequentially arranged along the axial direction of the pump shaft, one end of the cylinder connecti