Shaft detection platform

Abstract

The utility model belongs to the technical field of nuclear power station detection devices, and particularly relates to a shaft detection platform, which comprises a rotary driving part, a measuring instrument for measuring a shaft to be detected, and a first supporting assembly and a second supporting assembly which are arranged at an interval, the first supporting assembly comprises a first supporting piece and a first clamping piece rotationally installed on the first supporting piece. The second supporting assembly comprises a second supporting piece and a second clamping piece rotationally installed on the second supporting piece. The first clamping piece and the second clamping piece are both used for clamping a shaft to be tested; the rotation driving member is installed on the first supporting member, is connected with the first clamping member, and is used for driving the to-be-tested shaft to rotate through the first clamping member. According to the utility model, the rotation driving member drives the to-be-measured shaft to rotate through the first clamping member, the measuring instrument can measure the roundness of the to-be-measured shaft from the side, and the measuring instrument can measure the roundness of the to-be-measured shaft without being contacted with the to-be-measured shaft, so that the accident that the measuring instrument is damaged due to the contact between the measuring instrument and the to-be-measured shaft is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of nuclear power plant detection devices, in particular to a shaft detection platform. Background Art

[0002] Axles are required in various devices in nuclear power plants, such as turbine generators in nuclear power plants. In the process of producing shaft products, the shaft is prone to bending and deformation due to tissue stress and thermal stress. At present, in actual production, there are two main methods for bending detection of shaft products. One is to observe with the naked eye based on experience. This method has a large error, and because the shaft must be placed on a V-shaped frame for observation, it is time-consuming and laborious to measure the rotating shaft due to the large weight of the shaft. Especially in nuclear power plants, since some shafts work in a radiation environment, manual measurement of the curvature and roundness of the shaft can easily bring greater radiation risks to the measurement personnel. The other is to use a manipulator to drive the dial indicator to rotate around the shaft. The pointer of the dial indicator needs to be connected to the side of the shaft. Due to the large jitter of the manipulator driving the movement, it is easy to cause an accident of damaging the dial indicator, and the accuracy of this detection using a dial indicator is also low. Utility Model Content

[0003] The utility model aims at the technical problem that the dial indicator is easy to be damaged when measuring the roundness of the shaft by a manipulator dial indicator in the prior art, and provides a shaft detection platform.

[0004] In view of the above technical problems, an embodiment of the utility model provides a shaft detection platform, including a rotating drive member, a measuring instrument for measuring the shaft to be measured, and a first support assembly and a second support assembly arranged at intervals;

[0005] The first support assembly includes a first support member and a first clamping member rotatably mounted on the first support member; the second support assembly includes a second support member and a second clamping member rotatably mounted on the second support member; the first clamping member and the second clamping member are both used to clamp the shaft to be measured;

[0006] The rotary driving member is mounted on the first supporting member and connected to the first clamping member, and is used for driving the shaft to be measured to rotate through the first clamping member.

[0007] Optionally, both the first clamping member and the second clamping member are three-jaw chucks, which include a disc body provided with a through hole and three jaws slidably mounted on the disc body, and the three jaws are used to clamp the shaft to be measured in the through hole.

[0008] Optionally, the shaft detection platform further includes a first sliding assembly and a base, the measuring instrument is mounted on the base, and the first support member and the second support member are installed on the base at intervals.

[0009] Optionally, the first sliding assembly includes a first slider, a second slider, and a first guide rail mounted on the base; the first slider is mounted on the first support member and is slidably connected to the first guide rail, and the second slider is mounted on the second support member and is slidably connected to the first guide rail.

[0010] Optionally, the shaft detection platform further includes a first driving assembly, which is mounted on the base and connected to the first support member and the second support member, and is used to drive the first support assembly and the second support assembly to move on the base.

[0011] Optionally, the first driving assembly includes a first motor, a first screw, a first nut and a second nut, the first screw is rotatably mounted on the base; the first motor is mounted on the base and connected to the first screw, and is used to drive the first screw to rotate;

[0012] The first screw rod is provided with a left-handed external thread section and a right-handed external thread section which are spaced apart from each other, the first nut is provided with a left-handed threaded hole, and the second nut is provided with a right-handed threaded hole; the left-handed external thread section is threadedly connected to the left-handed threaded hole, and the right-handed external thread section is threadedly connected to the right-handed threaded hole.

[0013] Optionally, the shaft detection platform also includes a second sliding component, a second driving component and a support seat, the measuring instrument is mounted on the support seat, and the support seat is slidably mounted on the base via the second sliding component; the second driving component is mounted on the base and connected to the support seat, and is used to drive the support seat to move on the base.

[0014] Optionally, the second sliding assembly includes a third sliding block and a second guide rail mounted on the base, the third sliding block is mounted on the support seat and is slidably connected to the second guide rail;

[0015] The second driving assembly includes a second screw, a third nut and a second motor installed on the base; the second screw is rotatably installed on the base; the second motor is connected to the second screw to drive the second screw to rotate; the third nut is installed on the support seat and is threadedly connected to the second screw.

[0016] Optionally, a handle is also provided on the base.

[0017] Optionally, the base is a marble base plate.

[0018] Optionally, a first mounting hole is provided on the first supporting member, and the first supporting assembly further comprises a first bearing, and the first clamping member is rotatably mounted in the first mounting hole through the first bearing;

[0019] The second support member is provided with a second mounting hole, and the second support assembly further comprises a second bearing, and the second clamping member is rotatably mounted in the second mounting hole via the second bearing.

[0020] In the utility model, after the first clamping member and the second clamping member clamp the two opposite ends of the shaft to be measured respectively, the rotating driving member drives the shaft to be measured to rotate through the first clamping member. During the rotation of the shaft to be measured, the measuring instrument can measure the roundness of the shaft to be measured from the side, and the measuring instrument can measure the roundness of the shaft to be measured without contacting the shaft to be measured, thus avoiding the accident of damaging the measuring instrument due to contact between the measuring instrument and the shaft to be measured, and extending the service life of the shaft detection platform. In addition, the shaft detection platform has a compact structure, small space occupation, high detection accuracy, and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a structural schematic diagram of a shaft detection platform provided by an embodiment of the utility model;

[0023] Figure 2 It is a structural schematic diagram of a rotating drive member and a first supporting assembly of a shaft detection platform provided by an embodiment of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the second supporting assembly of the shaft detection platform provided by one embodiment of the utility model.

[0025] The reference numerals in the specification are as follows:

[0026] 1. Rotating drive member; 2. Measuring instrument; 3. First supporting assembly; 31. First supporting member; 32. First clamping member; 321. Disk; 322. Claw; 33. First bearing; 4. Second supporting assembly; 41. Second supporting member; 42. Second clamping member; 43. Second bearing; 5. First sliding assembly; 6. Base; 7. First driving assembly; 8. Second sliding assembly; 9. Second driving assembly; 10. Support seat; 100. Shaft to be measured. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] It should be understood that the directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", and "middle" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation of the present invention.

[0029] like Figures 1 to 3 As shown, an embodiment of the utility model provides a shaft detection platform, including a rotating drive member 1, a measuring instrument 2 for measuring the shaft 100 to be measured, and a first support assembly 3 and a second support assembly 4 arranged at intervals; it can be understood that the measuring instrument 2 includes but is not limited to a laser measuring instrument 2, a laser scanner, etc.

[0030] The first support assembly 3 includes a first support member 31 and a first clamping member 32 rotatably mounted on the first support member 31; the second support assembly 4 includes a second support member 41 and a second clamping member 42 rotatably mounted on the second support member 41; the first clamping member 32 and the second clamping member 42 are both used to clamp the shaft to be measured 100; it can be understood that the first clamping member 32 and the second clamping member 42 both include but are not limited to claws, chucks, etc., and the first clamping member 32 and the second clamping member 42 can respectively clamp the opposite ends of the shaft to be measured 100.

[0031] The rotary drive member 1 is mounted on the first support member 31 and connected to the first clamping member 32, and is used to drive the shaft to be measured 100 to rotate through the first clamping member 32. It can be understood that the rotary drive member 1 includes but is not limited to a motor and the like.

[0032] In the present utility model, after the first clamping member 32 and the second clamping member 42 clamp the opposite ends of the shaft 100 to be measured, the rotating driving member 1 drives the shaft 100 to be measured to rotate through the first clamping member 32. During the rotation of the shaft 100 to be measured, the measuring instrument 2 can measure the roundness of the shaft 100 to be measured from the side, and the measuring instrument 2 can measure the roundness of the shaft 100 to be measured without contacting the shaft 100 to be measured, thereby avoiding the accident of damaging the measuring instrument 2 caused by contact with the shaft 100 to be measured, and extending the service life of the shaft detection platform. In addition, the shaft detection platform has a compact structure, small space occupation, high detection accuracy, and convenient operation.

[0033] In one embodiment, if Figure 2 and Figure 3 As shown, the first clamping member 32 and the second clamping member 42 are both three-jaw chucks, and the three-jaw chuck includes a disk body 321 provided with a through hole and three claws 322 slidably mounted on the disk body 321, and the three claws 322 are used to clamp the shaft 100 to be measured in the through hole. It can be understood that the three claws 322 are slidably mounted on the disk body 321 in a ring shape with equal spacing, and the three claws 322 can move synchronously toward or away from the center of the through hole, and the three-jaw chuck is a conventional component in the art, which will not be described here. In this embodiment, the three claws 322 can clamp the shaft 100 to be measured in the through hole, and the design of the three-jaw chuck reduces the manufacturing cost of the shaft detection platform; in addition, the three-jaw chuck ensures the stability of clamping the shaft 100 to be measured.

[0034] In one embodiment, if Figure 1 As shown, the shaft detection platform also includes a first sliding component 5 and a base 6, the measuring instrument 2 is installed on the base 6, and the first support member 31 and the second support member 41 are installed on the base 6 at intervals. Preferably, the base 6 is a marble bottom plate, and the design of the marble bottom plate ensures the stability of the first support component 3, the second support component 4 and the measuring instrument 2 installed on the base 6. It can be understood that the first sliding component 5 includes but is not limited to a slider guide assembly, a slide rod sleeve assembly, etc. The design of the first sliding component 5 can adjust the position of the first support component 3 and the second support component 4 on the base 6, so that the first support component 3 and the second support component 4 can clamp the shaft 100 to be measured of different lengths, thereby improving the applicability and versatility of the shaft detection platform.

[0035] In one embodiment, if Figure 1 As shown, the first sliding assembly 5 includes a first slider, a second slider, and a first guide rail mounted on the base 6; the first slider is mounted on the first support member 31 and is slidably connected to the first guide rail, and the second slider is mounted on the second support member 41 and is slidably connected to the first guide rail. It can be understood that the first slider is mounted at the bottom of the first support member 31, and the second slider is mounted at the bottom of the second support member 41. The first support member 31 can slide on the first guide rail through the first slider, and the second support member 41 can slide on the first guide rail through the second slider, so that the sliding adjustment of the first support assembly 3 and the second support assembly 4 on the base 6 is simple.

[0036] In one embodiment, if Figure 1As shown, the shaft detection platform also includes a first drive component 7, which is installed on the base 6 and connects the first support member 31 and the second support member 41, and is used to drive the first support component 3 and the second support component 4 to move on the base 6. It can be understood that the first drive component 7 includes but is not limited to a linear motor, a pneumatic cylinder, a hydraulic cylinder, and a screw nut mechanism, etc. During the process of the first drive component 7 driving the first support member 31 and the second support member 41 to move, the first support component 3 slides on the first guide rail through the first slider, and the second support component 4 slides on the second guide rail through the second slider. In this embodiment, the design of the first drive component 7 improves the automation level of the shaft detection platform.

[0037] In one embodiment, if Figure 1 As shown, the first driving assembly 7 includes a first motor, a first screw, a first nut and a second nut, and the first screw is rotatably mounted on the base 6; the first motor is mounted on the base 6 and connected to the first screw, and is used to drive the first screw to rotate; it can be understood that the first screw can be rotatably mounted on the base 6 via a bearing.

[0038] The first screw rod is provided with a left-handed external thread section and a right-handed external thread section which are spaced apart from each other, the first nut is provided with a left-handed threaded hole, and the second nut is provided with a right-handed threaded hole; the left-handed external thread section is threadedly connected to the left-handed threaded hole, and the right-handed external thread section is threadedly connected to the right-handed threaded hole.

[0039] Specifically, the first motor drives the first screw to rotate, and the first screw drives the first support assembly 3 and the second support assembly 4 to move closer to or farther from each other through the first nut and the second nut, thereby achieving the purpose of adjusting the distance between the first support assembly 3 and the second support assembly 4. In this embodiment, the first drive assembly 7 has a simple structure and low manufacturing cost.

[0040] In one embodiment, if Figure 1As shown, the shaft inspection platform further includes a second sliding assembly 8, a second driving assembly 9 and a support seat 10, the measuring instrument 2 is mounted on the support seat 10, and the support seat 10 is slidably mounted on the base 6 through the second sliding assembly 8; the second driving assembly 9 is mounted on the base 6 and connected to the support seat 10, and is used to drive the support seat 10 to move on the base 6. It can be understood that the second driving assembly 9 includes but is not limited to a linear motor, a pneumatic cylinder, a hydraulic cylinder, and a screw nut mechanism, etc.; the second sliding assembly 8 includes but is not limited to a guide rail slider assembly, a slide rod sliding sleeve assembly, etc.; the measuring instrument 2 is mounted on the top of the support seat 10, and the bottom of the second sliding assembly 8 is slidably mounted on the top surface of the base 6 through the second sliding assembly 8.

[0041] In this embodiment, when the second driving component 9 drives the support seat 10 to move, the support seat 10 slides on the base 6 through the second sliding component 8, so that the support seat 10 can drive the measuring instrument 2 to move along the axial direction of the measured shaft 100, and then the measuring instrument 2 can detect the length, curvature, etc. of the measured shaft 100.

[0042] In one embodiment, if Figure 1 As shown, the second sliding assembly 8 includes a third slider and a second guide rail installed on the base 6, and the third slider is installed on the support seat 10 and is slidably connected to the second guide rail; it can be understood that the third slider is installed on the top of the support seat 10, and the second guide rail is installed on the top surface of the base 6.

[0043] The second driving assembly 9 includes a second screw, a third nut and a second motor installed on the base 6; the second screw is rotatably installed on the base 6; the second motor is connected to the second screw to drive the second screw to rotate; the third nut is installed on the support seat 10 and is threadedly connected to the second screw.

[0044] Specifically, the second motor drives the second screw to rotate, and the second screw drives the support base 10 to move through the third nut, and during the movement of the support base 10, the support base 10 slides on the second guide rail through the third slider, thereby achieving the purpose of driving the measuring instrument 2 to move. In this embodiment, the first driving assembly 7 and the second sliding assembly 8 have a simple structure and low manufacturing cost.

[0045] In one embodiment, a handle (not shown in the figure) is further provided on the base 6; it can be understood that the user can move the shaft detection platform by the handle, thereby improving the convenience of carrying the shaft detection platform.

[0046] In one embodiment, if Figure 2 and Figure 3 As shown, a first mounting hole is provided on the first support member 31, and the first support assembly 3 also includes a first bearing 33, and the first clamping member 32 is rotatably mounted in the first mounting hole through the first bearing 33; it can be understood that the design of the first bearing 33 ensures the stability of the rotation of the first clamping member 32 on the first support member 31.

[0047] The second support member 41 is provided with a second mounting hole, and the second support assembly 4 further includes a second bearing 43, and the second clamping member 42 is rotatably mounted in the second mounting hole via the second bearing 43. It can be understood that the design of the second bearing 43 ensures the stability of the second clamping member 42 in rotation on the second support member 41.

[0048] The above are only embodiments of the shaft detection platform 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 shaft detection platform, characterized in that: It comprises a rotary driving member, a measuring instrument for measuring the shaft to be measured, and a first supporting assembly and a second supporting assembly which are arranged at intervals; The first support assembly includes a first support member and a first clamping member rotatably mounted on the first support member; the second support assembly includes a second support member and a second clamping member rotatably mounted on the second support member; the first clamping member and the second clamping member are both used to clamp the shaft to be measured; The rotary driving member is mounted on the first supporting member and connected to the first clamping member, and is used for driving the shaft to be measured to rotate through the first clamping member.

2. The shaft detection platform according to claim 1, characterized in that: The first clamping member and the second clamping member are both three-jaw chucks, which include a disc body provided with a through hole and three clamping jaws slidably mounted on the disc body, and the three clamping jaws are used to clamp the shaft to be measured in the through hole.

3. The shaft detection platform according to claim 1, characterized in that: The shaft detection platform also includes a first sliding component and a base, the measuring instrument is installed on the base, and the first support member and the second support member are installed on the base at intervals.

4. The shaft detection platform according to claim 3, characterized in that: The first sliding assembly includes a first slider, a second slider, and a first guide rail installed on the base; the first slider is installed on the first support member and is slidably connected to the first guide rail, and the second slider is installed on the second support member and is slidably connected to the first guide rail.

5. The shaft detection platform according to claim 3, characterized in that: The shaft detection platform also includes a first driving component, which is installed on the base and connects the first support member and the second support member, and is used to drive the first support member and the second support member to move on the base.

6. The shaft detection platform according to claim 5, characterized in that: The first driving assembly includes a first motor, a first screw, a first nut and a second nut, wherein the first screw is rotatably mounted on the base; the first motor is mounted on the base and connected to the first screw, and is used to drive the first screw to rotate; The first screw rod is provided with a left-handed external thread section and a right-handed external thread section which are spaced apart from each other, the first nut is provided with a left-handed threaded hole, and the second nut is provided with a right-handed threaded hole; the left-handed external thread section is threadedly connected to the left-handed threaded hole, and the right-handed external thread section is threadedly connected to the right-handed threaded hole.

7. The shaft detection platform according to claim 3, characterized in that: The shaft detection platform further comprises a second sliding assembly, a second driving assembly and a support seat, the measuring instrument is mounted on the support seat, and the support seat is slidably mounted on the base via the second sliding assembly; The second driving assembly is installed on the base and connected to the supporting base, and is used for driving the supporting base to move on the base.

8. The shaft detection platform according to claim 7, characterized in that: The second sliding assembly includes a third sliding block and a second guide rail mounted on the base, wherein the third sliding block is mounted on the support seat and is slidably connected to the second guide rail; The second driving assembly includes a second screw, a third nut and a second motor installed on the base; the second screw is rotatably installed on the base; the second motor is connected to the second screw to drive the second screw to rotate; the third nut is installed on the support seat and is threadedly connected to the second screw.

9. The shaft detection platform according to claim 3, characterized in that: The base is also provided with a handle; and / or The base is a marble base plate.

10. The shaft detection platform according to claim 1, characterized in that: The first support member is provided with a first mounting hole, the first support assembly further comprises a first bearing, and the first clamping member is rotatably mounted in the first mounting hole via the first bearing; The second support member is provided with a second mounting hole, and the second support assembly further comprises a second bearing, and the second clamping member is rotatably mounted in the second mounting hole via the second bearing.

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