Motor shaft detection device

Abstract

The utility model provides a motor shaft detection device. The motor shaft detection device comprises a base; the bearing structure is used for carrying the motor shaft; the detection mechanism comprises a probe part in contact with the outer wall surface of the motor shaft; and a driving mechanism. The motor shaft detection device provided by the utility model is provided with the base, and the base is provided with the two bearing structures which are arranged at an interval, so that the two ends of the motor shaft can be jointly supported through the bearing parts on the bearing structures; the detection mechanism is arranged on the base, can slide in the interval direction of the two bearing structures, and is in contact with the outer wall surface of the motor shaft through a probe part, so that the straightness and the roundness of the motor shaft are measured; the detection mechanism driving mechanism is arranged on the base, can drive the two bearing parts to move oppositely or reversely in the positioning driving mode, and can drive the to-be-detected motor shafts located on the two bearing parts to rotate in the rotation driving mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor quality inspection, and specifically relates to a motor shaft detection device. Background Art

[0002] A motor is a device that converts electrical energy into mechanical energy. The motor shaft is an important part of the motor. It is responsible for supporting rotating parts, transmitting torque, and determining the relative position of rotating parts to the stator. The motor shaft has two important parameters, straightness and roundness. Straightness refers to the degree of deviation between the actual shape of the motor shaft in the length direction and the ideal straight line; roundness refers to the maximum deviation between the motor shaft surface and the center line of the shaft.

[0003] In the prior art, when testing the straightness and roundness of a motor shaft, the motor shaft to be tested is usually fixed on a straightness testing device and a roundness testing device respectively in turn to obtain the actual parameters of the motor shaft to be tested. However, in actual production, the staff needs to test each motor shaft, and each motor shaft needs to be tested on a straightness testing device and a roundness testing device, which requires frequent picking and placing, high labor costs, poor adaptability, and poor practicality. Utility Model Content

[0004] The embodiment of the utility model provides a motor shaft detection device, which aims to solve the problem that the existing motor shaft detection method needs to be frequently taken and placed.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a motor shaft detection device, comprising:

[0006] Base;

[0007] There are two bearing structures, the two bearing structures are spaced apart and are both slidably arranged on the base, each bearing structure has a bearing part, and the two bearing parts are used to jointly support the two ends of the motor shaft;

[0008] A detection mechanism is slidably disposed on the base along the spacing direction of the two bearing structures, and the detection mechanism is provided with a probe portion for contacting the outer wall surface of the motor shaft;

[0009] The driving mechanism is arranged on the base and has a positioning driving mode and a rotation driving mode. The positioning driving mode is used to drive the two bearing parts to move relative to or away from each other, and the rotation driving mode is used to drive the motor shaft to be detected located on the two bearing parts to rotate.

[0010] In a possible implementation manner, a spacing direction between the two bearing structures is set as a first direction;

[0011] The driving mechanism comprises:

[0012] There are two vertical plates, and the two vertical plates are spaced apart at two ends of the base along the first direction;

[0013] There are two sliding top rods, which are slidably arranged on the two vertical plates respectively, and each sliding top rod is rotatably connected to the corresponding vertical plates;

[0014] There are two springs, which are respectively sleeved on the two sliding push rods, and are used to make the two sliding push rods always have a tendency to move along the first direction toward the other sliding push rod;

[0015] The driving structure is used to drive the two bearing parts to move relative to or away from each other in the positioning driving mode, and to drive one of the sliding push rods to rotate in the rotation driving mode, thereby driving the motor shafts to be detected on the two bearing parts to rotate.

[0016] In a possible implementation, the driving mechanism further includes a bidirectional lead screw, which is rotatably disposed on the base and disposed along the first direction, and is spirally connected to a nut portion disposed at the bottom of the two bearing structures;

[0017] The threads at both ends of the bidirectional lead screw have opposite rotation directions, and are used to drive the two bearing structures to move relative to or away from each other when the bidirectional lead screw rotates.

[0018] In a possible implementation, the driving structure includes:

[0019] A slide plate, arranged at one end of the base along the first direction, and the slide plate is provided with a slide groove arranged along the first direction;

[0020] A driving motor is slidably arranged in the sliding groove along the first direction and is detachably connected to the bidirectional lead screw, and an output end of the driving motor is provided with a plug-in male end;

[0021] A transmission member having two connecting ends, the two connecting ends are respectively connected to the output end of the driving motor and the sliding push rod located on the same side as the driving motor, and is used to drive the motor shafts to be detected located on the two bearing parts to rotate in the rotation driving mode;

[0022] Wherein, the bidirectional lead screw is provided with a plug-in female end which is detachably connected to the output end of the drive motor.

[0023] In a possible implementation, the transmission member includes:

[0024] A driving gear, sleeved on the output end of the driving motor, and rotating synchronously with the driving motor;

[0025] A driven gear is arranged at intervals from the driving gear in the vertical direction and sleeved on the sliding push rod arranged at intervals above the driving gear in the vertical direction;

[0026] A transmission belt connects the driving gear and the driven gear, and is used to drive the driven gear and the sliding push rod to rotate when the driving motor drives the driving gear to rotate, thereby driving the motor shaft to be detected to rotate.

[0027] In a possible implementation, a V-shaped groove is provided on the top of each of the bearing structures, auxiliary rollers are rotatably provided on both side walls of the V-shaped groove, and the rotation axis of each of the auxiliary rollers is arranged along the first direction.

[0028] In a possible implementation manner, the probe part is a micrometer.

[0029] In this implementation, compared with the prior art, a base is provided, and two spaced-apart bearing structures are provided on the base, so that the two ends of the motor shaft can be supported together through the bearing parts on each bearing structure; a detection mechanism is provided on the base, which can slide along the spacing direction of the two bearing structures and contact the outer wall surface of the motor shaft through the probe part, so as to measure the straightness and roundness of the motor shaft; a detection mechanism driving mechanism is provided on the base, which can drive the two bearing parts to move relative to or away from each other in the positioning drive mode, and drive the motor shaft to be detected located on the two bearing parts to rotate in the rotation drive mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of the structure of a motor shaft detection device provided by an embodiment of the utility model;

[0031] Figure 2 A schematic diagram of the internal structure of a motor shaft detection device provided by an embodiment of the utility model;

[0032] Description of reference numerals:

[0033] 10. Base; 20. Bearing structure; 21. V-shaped groove; 211. Auxiliary roller; 30. Detection mechanism; 40. Driving mechanism; 41. Vertical plate; 42. Sliding push rod; 43. Spring; 44. Driving structure; 441. Slide plate; 442. Driving motor; 443. Transmission member; 4431. Driving gear; 4432. Driven gear; 4433. Transmission belt; 45. Bidirectional screw. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] Please also read Figure 1 and Figure 2 Now, the motor shaft detection device provided by the utility model is described. The motor shaft detection device comprises: a base 10, a bearing structure 20, a detection mechanism 30 and a driving mechanism 40.

[0036] Base 10.

[0037] There are two bearing structures 20 , which are spaced apart and slidably disposed on the base 10 . Each bearing structure 20 has a bearing portion, and the two bearing portions are used to jointly support the two ends of the motor shaft.

[0038] The detection mechanism 30 is slidably disposed on the base 10 along the spacing direction of the two bearing structures 20 , and the detection mechanism 30 is provided with a probe portion for contacting the outer wall surface of the motor shaft.

[0039] The driving mechanism 40 is disposed on the base 10 and has a positioning driving mode and a rotation driving mode. The positioning driving mode is used to drive the two bearing parts to move relative to or away from each other, and the rotation driving mode is used to drive the motor shafts to be detected located on the two bearing parts to rotate.

[0040] Compared with the prior art, the motor shaft detection device provided in this embodiment is provided with a base 10, on which two spaced-apart bearing structures 20 are provided, and the two ends of the motor shaft can be supported together through the bearing parts on each bearing structure 20. A detection mechanism 30 is provided on the base 10, which can slide along the spacing direction of the two bearing structures 20, and contact the outer wall surface of the motor shaft through the probe part, so as to measure the straightness and roundness of the motor shaft. A detection mechanism 30 driving mechanism 40 is provided on the base 10, which can drive the two bearing parts to move relative to or back to each other in the positioning drive mode, and drive the motor shaft to be detected located on the two bearing parts to rotate in the rotation drive mode.

[0041] In some embodiments, the driving mechanism 40 may be configured as follows: Figure 1 , Figure 2 See the structure shown. Figure 1 , Figure 2 , setting the spacing direction of the two supporting structures 20 as the first direction.

[0042] The driving mechanism 40 includes: a vertical plate 41, a sliding top rod 42, a spring 43 and a driving structure 44. There are two vertical plates 41, and the two vertical plates 41 are spaced apart at both ends of the base 10 along the first direction. There are two sliding top rods 42, and the two sliding top rods 42 are respectively slidably arranged on the two vertical plates 41, and each sliding top rod 42 is rotatably connected to the corresponding vertical plates 41. There are two springs 43, and the two springs 43 are respectively sleeved on the two sliding top rods 42, so that the two sliding top rods 42 always have a tendency to move toward the other sliding top rod 42 along the first direction. The driving structure 44 is used to drive the two bearing parts to move relative to or back to back in the positioning driving mode, and to drive one of the sliding top rods 42 to rotate in the rotation driving mode, thereby driving the motor shafts to be detected on the two bearing parts to rotate.

[0043] The vertical plate 41 is provided with a sliding hole for the sliding push rod 42 to slide and rotate. The spring 43 can make each sliding push rod 42 always have a tendency to move along the first direction toward another sliding push rod 42. The driving structure 44 can drive the two bearing parts to move relative to or back to each other in the positioning driving mode, and drive one of the sliding push rods 42 to rotate in the rotation driving mode, thereby driving the motor shafts to be detected on the two bearing parts to rotate.

[0044] In some embodiments, the driving mechanism 40 may be configured as follows: Figure 1 , Figure 2 See the structure shown. Figure 1 , Figure 2 The driving mechanism 40 also includes a bidirectional lead screw 45, which is rotatably disposed on the base 10 and disposed along a first direction. The bidirectional lead screw 45 is spirally connected to a nut portion disposed at the bottom of the two bearing structures 20.

[0045] The threads at both ends of the bidirectional lead screw 45 have opposite rotation directions, so as to drive the two supporting structures 20 to move relative to or away from each other when the bidirectional lead screw 45 rotates.

[0046] The bidirectional lead screw 45 can drive the two bearing structures 20 to move relative to or away from each other when the bidirectional lead screw 45 rotates. The threads at both ends of the bidirectional lead screw 45 have opposite rotation directions.

[0047] The base 10 is provided with an adjustment cavity for rotationally connecting the bidirectional lead screw 45 , and the two bearing structures 20 are both slidably arranged in the adjustment cavity.

[0048] In some embodiments, the driving structure 44 may be implemented as follows: Figure 1 , Figure 2 See the structure shown. Figure 1 , Figure 2The driving structure 44 includes: a slide plate 441, a driving motor 442 and a transmission member 443. The slide plate 441 is arranged at one end of the base 10 along the first direction, and a slide groove arranged along the first direction is provided on the slide plate 441. The driving motor 442 is slidably arranged in the slide groove along the first direction, and is detachably connected to the bidirectional lead screw 45, and a plug-in male end is provided at the output end of the driving motor 442. The transmission member 443 has two connecting ends, and the two connecting ends are respectively connected to the output end of the driving motor 442 and the sliding top rod 42 located on the same side as the driving motor 442, and are used to drive the motor shaft to be detected located on the two bearing parts to rotate in the rotation driving mode.

[0049] The bidirectional lead screw 45 is provided with a plug-in female end which is detachably connected to the output end of the driving motor 442 .

[0050] The slide plate 441 can make the driving motor 442 slide along the first direction, and can realize a detachable connection with the bidirectional lead screw 45. The transmission member 443 can drive the motor shaft to be detected located on the two bearing parts to rotate in the rotation driving mode.

[0051] In some embodiments, the transmission member 443 may be configured as follows: Figure 1 , Figure 2 See the structure shown. Figure 1 , Figure 2 The transmission member 443 includes: a driving gear 4431, a driven gear 4432 and a transmission belt 4433. The driving gear 4431 is sleeved on the output end of the driving motor 442 and rotates synchronously with the driving motor 442. The driven gear 4432 and the driving gear 4431 are arranged at intervals in the vertical direction, and are sleeved on the sliding top rod 42 above the driving gear 4431 which is arranged at intervals in the vertical direction. The transmission belt 4433 connects the driving gear 4431 and the driven gear 4432, and is used to drive the driven gear 4432 and the sliding top rod 42 to rotate when the driving motor 442 drives the driving gear 4431 to rotate, thereby driving the motor shaft to be detected to rotate.

[0052] The driving gear 4431 can rotate synchronously with the driving motor 442. The driven gear can be sleeved on the sliding push rod 42 arranged above the driving gear 4431 at intervals in the vertical direction. When the driving motor 442 drives the driving gear 4431 to rotate, the transmission belt 4433 can drive the driven gear 4432 and the sliding push rod 42 to rotate, thereby driving the motor shaft to be detected to rotate.

[0053] In some embodiments, the supporting structure 20 may be Figure 1 , Figure 2 See the structure shown. Figure 1 , Figure 2A V-shaped groove 21 is provided on the top of each bearing structure 20 , and auxiliary rollers 211 are rotatably provided on both side walls of the V-shaped groove 21 , and the rotation axis of each auxiliary roller 211 is arranged along the first direction.

[0054] The V-shaped groove 21 can support the motor shaft. The auxiliary roller 211 can convert the sliding friction of the motor shaft on the V-shaped groove 21 into rolling friction.

[0055] In some embodiments, the probe portion may be used as follows Figure 1 , Figure 2 See the structure shown. Figure 1 , Figure 2 , the probe part is a micrometer.

[0056] The micrometer is a measuring instrument that converts the general linear displacement (linear motion) into the rotational motion of the pointer through gears or levers, and then reads the reading on the dial. The micrometer is a prior art and will not be described in detail here.

[0057] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A motor shaft detection device, characterized in that: include: Base; There are two bearing structures, the two bearing structures are spaced apart and are both slidably arranged on the base, each bearing structure has a bearing part, and the two bearing parts are used to jointly support the two ends of the motor shaft; A detection mechanism is slidably disposed on the base along the spacing direction of the two bearing structures, and the detection mechanism is provided with a probe portion for contacting the outer wall surface of the motor shaft; The driving mechanism is arranged on the base and has a positioning driving mode and a rotation driving mode. The positioning driving mode is used to drive the two bearing parts to move relative to or away from each other, and the rotation driving mode is used to drive the motor shaft to be detected located on the two bearing parts to rotate.

2. The motor shaft detection device according to claim 1, characterized in that: Setting the spacing direction of the two bearing structures as a first direction; The driving mechanism comprises: Two vertical plates are provided, and the two vertical plates are spaced apart and arranged at two ends of the base along the first direction; There are two sliding top rods, which are slidably arranged on the two vertical plates respectively, and each sliding top rod is rotatably connected to the corresponding vertical plates; There are two springs, which are respectively sleeved on the two sliding push rods, and are used to make the two sliding push rods always have a tendency to move along the first direction toward the other sliding push rod; The driving structure is used to drive the two bearing parts to move relative to or away from each other in the positioning driving mode, and to drive one of the sliding push rods to rotate in the rotation driving mode, thereby driving the motor shafts to be detected on the two bearing parts to rotate.

3. The motor shaft detection device according to claim 2, characterized in that: The driving mechanism further comprises a bidirectional lead screw, which is rotatably arranged on the base and arranged along the first direction, and is spirally connected with a nut portion arranged at the bottom of the two bearing structures; The threads at both ends of the bidirectional lead screw have opposite rotation directions, and are used to drive the two bearing structures to move relative to or away from each other when the bidirectional lead screw rotates.

4. The motor shaft detection device according to claim 3, characterized in that: The driving structure comprises: A slide plate, arranged at one end of the base along the first direction, and the slide plate is provided with a slide groove arranged along the first direction; A driving motor is slidably arranged in the sliding groove along the first direction and is detachably connected to the bidirectional lead screw, and an output end of the driving motor is provided with a plug-in male end; A transmission member having two connecting ends, the two connecting ends are respectively connected to the output end of the driving motor and the sliding push rod located on the same side as the driving motor, and is used to drive the motor shafts to be detected located on the two bearing parts to rotate in the rotation driving mode; Wherein, the bidirectional lead screw is provided with a plug-in female end which is detachably connected to the output end of the drive motor.

5. The motor shaft detection device according to claim 4, characterized in that: The transmission member comprises: A driving gear, sleeved on the output end of the driving motor, and rotating synchronously with the driving motor; A driven gear is arranged at intervals from the driving gear in the vertical direction and sleeved on the sliding push rod arranged at intervals above the driving gear in the vertical direction; A transmission belt connects the driving gear and the driven gear, and is used to drive the driven gear and the sliding push rod to rotate when the driving motor drives the driving gear to rotate, thereby driving the motor shaft to be detected to rotate.

6. The motor shaft detection device according to claim 2, characterized in that: A V-shaped groove is arranged on the top of each bearing structure, and auxiliary rollers are rotatably arranged on both side walls of the V-shaped groove, and the rotation axis of each auxiliary roller is arranged along the first direction.

7. The motor shaft detection device according to claim 1, characterized in that: The probe part is a micrometer.

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