Molecular pump main shaft dynamic balance detection support

Abstract

The utility model relates to a support for molecular pump main shaft dynamic balance detection, which comprises a sliding seat, a V-shaped plate, a clamping plate, a waist-shaped plate and an L-shaped plate, two side plates are formed above the sliding seat, the V-shaped plate is respectively connected with the two side plates in a sliding manner, and two ends of the clamping plate are respectively connected and fixed with different side plates in a rotating manner; the kidney-shaped plate is inserted into a groove in the middle of the clamping plate and slides in the vertical direction relative to the clamping plate, and the L-shaped plate moves in the left-right direction relative to the sliding base. According to the utility model, for spindles of the same specification, multiple adjustment is not needed, the installation of the spindles and the support can be completed only by adjusting for the first time and then rotating the hook plate to fix the clamping plate and the sliding seat, the spindles are limited, the operation steps are few, and the efficiency of detecting a plurality of spindles of the same specification is improved.

Description

Technical Field

[0001] The utility model relates to the field of a main shaft dynamic balance detection bracket, in particular to a bracket for dynamic balance detection of a main shaft of a molecular pump. Background Art

[0002] Due to the limitation of the existing structure, the existing spindle dynamic balance detection device has complicated installation and removal steps for the two ends of the spindle and the bracket, which increases the removal time and reduces the detection efficiency. At the same time, the bracket and the end surface of the spindle are in sliding friction, and the vibration of the spindle is partially absorbed, resulting in inaccurate detection results of the vibration sensor. Utility Model Content

[0003] The utility model aims to solve the above problems and provides a bracket for dynamic balance detection of a molecular pump main shaft, thereby solving the above technical problems.

[0004] A bracket for detecting the dynamic balance of a molecular pump spindle comprises: a sliding seat, a V-shaped plate, a clamping plate, a waist plate and an L-shaped plate, wherein two side plates are formed above the sliding seat, the V-shaped plate is slidingly connected to the two side plates respectively, and different side plates at both ends of the clamping plate are rotatably connected and fixed; the waist plate is inserted into a groove in the middle of the clamping plate and slides in the up and down direction relative to the clamping plate, and the L-shaped plate moves in the left and right direction relative to the sliding seat.

[0005] On the basis of the above technical solution, it also includes a hook plate, which forms a limiting groove with the side plate fixed with the clamping plate. One end of the hook plate is rotatably connected to the clamping plate, and the other end is inserted into the limiting groove.

[0006] On the basis of the above technical solution, it also includes a first bearing and a second bearing. The V-shaped plate is formed with a V-shaped groove running through the left and right sides. The two first bearings are respectively located on both sides of the V-shaped groove. The two first bearings are respectively installed on the V-shaped plate. The second bearing is installed at the lower end of the waist plate. The axes of the first bearing and the second bearing are parallel.

[0007] Based on the above technical solution, it also includes a fixing plate and a fourth screw. The fixing plate is fixedly connected to the sliding seat, the L-shaped plate is slidably connected to the fixing plate, the fixing plate is formed with a fourth strip hole, and the fourth screw passes through the fourth strip hole and is threadedly connected to the L-shaped plate.

[0008] On the basis of the above technical solution, it also includes an adjusting column, a third screw and a third bearing. The adjusting column is slidably connected to the L-shaped plate, and the adjusting column moves up and down relative to the L-shaped plate. The L-shaped plate is formed with a third strip hole. The third screw passes through the third strip hole and is threadedly connected to the adjusting column. The third bearing is installed at one end of the adjusting column away from the third screw.

[0009] Based on the above technical solution, it also includes a first screw and an adjusting nut. The side plate is formed with a first strip hole. The first screw passes through the first strip hole and is threadedly connected to the V-shaped plate. One end of the adjusting nut is threadedly connected to the sliding seat, and the other end contacts the bottom surface of the V-shaped plate.

[0010] On the basis of the above technical solution, it also includes a second screw, the waist-shaped plate is formed with a second strip hole, and the second screw passes through the second strip hole and is threadedly connected with the clamping plate.

[0011] On the basis of the above technical solution, it also includes a rotating handle and a screw rod, wherein the screw rod is rotatably connected to the sliding seat, the rotating handle is fixedly connected to the screw rod, and the screw rod is threadedly connected to the first nut.

[0012] The utility model has the following advantages:

[0013] 1. For the spindle of the same specification, it is not necessary to adjust it multiple times. Only the first adjustment is required. Then, the hook plate is turned to fix the clamping plate and the sliding seat to complete the installation of the spindle and the bracket. The spindle is limited, the operation steps are few, and the efficiency of detecting multiple spindles of the same specification is improved.

[0014] 2. The third bearing is set at the end to reduce the friction of the spindle end face, making the detection results of the vibration sensor more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only one embodiment of the utility model. For ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0016] Figure 1 : A schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 : The second schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 3 : A side structural schematic diagram of the utility model;

[0019] Figure 4 : A schematic diagram of the three-dimensional structure of the utility model when working. DETAILED DESCRIPTION

[0020] The utility model is further described below with reference to the accompanying drawings and examples:

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] Embodiment 1:

[0025] like Figures 1 to 4 As shown, this embodiment provides a bracket for dynamic balance detection of a molecular pump spindle, comprising: a sliding seat 21, a V-shaped plate 22, a clamping plate 23, a waist plate 24 and an L-shaped plate 25, two side plates 211 are formed above the sliding seat 21, the V-shaped plate 22 is slidingly connected to the two side plates 211 respectively, and the side plates 211 at both ends of the clamping plate 23 are rotatably connected and fixed; the waist plate 24 is inserted into the groove in the middle of the clamping plate 23 and slides in the up and down directions relative to the clamping plate 23, and the L-shaped plate 25 moves in the left and right directions relative to the sliding seat 21.

[0026] On the basis of the above technical solution, it further includes a hook plate 231 , which forms a limiting groove 214 with the side plate 211 fixed with the clamping plate 23 , and one end of the hook plate 231 is rotatably connected to the clamping plate 23 , and the other end is inserted into the limiting groove 214 .

[0027] On the basis of the above technical solution, it also includes a first bearing 222 and a second bearing 241. The V-shaped plate 22 is formed with a V-shaped groove 221 that passes through the left and right sides. The two first bearings 222 are respectively located on both sides of the V-shaped groove 221. The two first bearings 222 are respectively installed on the V-shaped plate 22. The second bearing 241 is installed on the lower end of the waist plate 24. The axes of the first bearing 222 and the second bearing 241 are parallel.

[0028] On the basis of the above technical solution, it also includes a fixing plate 27 and a fourth screw 272. The fixing plate 27 is fixedly connected to the sliding seat 21, the L-shaped plate 25 is slidably connected to the fixing plate 27, and the fixing plate 27 is formed with a fourth strip hole 271. The fourth screw 272 passes through the fourth strip hole 271 and is threadedly connected to the L-shaped plate 25.

[0029] On the basis of the above technical solution, it also includes an adjustment column 26, a third screw 252 and a third bearing 261, the adjustment column 26 is slidably connected to the L-shaped plate 25, the adjustment column 26 moves up and down relative to the L-shaped plate 25, the L-shaped plate 25 is formed with a third strip hole 251, the third screw 252 passes through the third strip hole 251 and is threadedly connected to the adjustment column 26, and the third bearing 261 is installed at one end of the adjustment column 26 away from the third screw 252. The axis of the third bearing 261 is perpendicular to the first bearing 222 and the second bearing 241.

[0030] Based on the above technical solution, it also includes a first screw 213 and an adjusting nut 28. The side plate 211 is formed with a first strip hole 212. The first screw 213 passes through the first strip hole 212 and is threadedly connected to the V-shaped plate 22. One end of the adjusting nut 28 is threadedly connected to the sliding seat 21, and the other end contacts the bottom surface of the V-shaped plate 22.

[0031] On the basis of the above technical solution, a second screw 243 is further included. The waist-shaped plate 24 is formed with a second strip hole 242 . The second screw 243 passes through the second strip hole 242 and is threadedly connected with the clamping plate 23 .

[0032] On the basis of the above technical solution, it further comprises a rotating handle 29 and a screw rod 291 , wherein the screw rod 291 is rotatably connected to the sliding seat 21 , the rotating handle 29 is fixedly connected to the screw rod 291 , and the screw rod 291 is threadedly connected to the first nut.

[0033] When in use, the two brackets 2 are mounted on the platform 1 and are slidably connected to the platform 1. The platform 1 is formed with a linear slide 11, the cross section of which is convex, and the first nut is located in the linear slide 11 and is restricted from moving upward by the linear slide 11. After the bracket 2 is adjusted to the specified position, the rotating handle 29 is turned to drive the screw 291 to rotate, thereby driving the first nut to press against the inner wall of the linear slide 11, thereby fixing the bracket 2 and the platform 1. It should be noted that the first nut is not shown in the figure and slides in the up and down direction relative to the linear slide 11.

[0034] During adjustment, firstly, the adjusting nut 28 is rotated to adjust the height of the V-shaped plate 22, and then the first screw 213 is rotated to fix the sliding seat 21 and the V-shaped plate 22. Then, the end of the main shaft 7 is placed above the two first bearings 222. After that, the clamping plate 23 is rotated and the hook plate 231 is rotated and inserted into the limiting groove 214, so that the clamping plate 23 and the sliding seat 21 are fixed.

[0035] Slide the waist plate 24 downward until the second bearing 241 contacts the main shaft 7, and then turn the second screw 243 to fix the waist plate 24 and the clamping plate 23. Finally, slide the L-shaped plate 25 in the left-right direction and the adjustment column 26 in the up-down direction to make the third bearing 261 contact the end surface of the main shaft 7. Preferably, the third bearing 261 is perpendicular to the axis of the main shaft 7.

[0036] For the above adjustment, as long as the spindle 7 of the same specification is repeatedly tested, it is only necessary to rotate the hook plate 231 to fix the clamping plate 23 and the sliding seat 21.

[0037] During operation, the motor 4 drives the main shaft 7 to rotate through the belt. If the vibration sensor fixed on the sliding seat 21 detects that the amplitude of the vibration exceeds the standard, it means that the main shaft 7 is not dynamically balanced.

[0038] The present invention is described above by way of examples, but the present invention is not limited to the above specific embodiments, and any changes or modifications based on the present invention belong to the scope of protection required by the present invention.

Claims

1. A bracket for detecting the dynamic balance of a molecular pump spindle, characterized in that: include: A sliding seat (21), a V-shaped plate (22), a clamping plate (23), a waist plate (24) and an L-shaped plate (25); two side plates (211) are formed above the sliding seat (21); the V-shaped plate (22) is slidably connected to the two side plates (211) respectively; different side plates (211) at both ends of the clamping plate (23) are rotatably connected and fixed; the waist plate (24) is inserted into the groove in the middle of the clamping plate (23) and slides in the up and down direction relative to the clamping plate (23); the L-shaped plate (25) moves in the left and right direction relative to the sliding seat (21).

2. A molecular pump spindle dynamic balance detection bracket according to claim 1, characterized in that: It also includes a hook plate (231) which is fixed to the side plate (211) of the clamping plate (23) to form a limiting groove (214); one end of the hook plate (231) is rotatably connected to the clamping plate (23) and the other end is inserted into the limiting groove (214).

3. A molecular pump main shaft dynamic balance detection bracket according to claim 1, characterized in that: It also includes a first bearing (222) and a second bearing (241), the V-shaped plate (22) is formed with a V-shaped groove (221) that passes through the left and right sides, the two first bearings (222) are respectively located on both sides of the V-shaped groove (221), the two first bearings (222) are respectively installed on the V-shaped plate (22), the second bearing (241) is installed at the lower end of the waist plate (24), and the axes of the first bearing (222) and the second bearing (241) are parallel.

4. A molecular pump main shaft dynamic balance detection bracket according to claim 1, characterized in that: It also includes a fixing plate (27) and a fourth screw (272), wherein the fixing plate (27) is fixedly connected to the sliding seat (21), the L-shaped plate (25) is slidably connected to the fixing plate (27), the fixing plate (27) is formed with a fourth strip hole (271), and the fourth screw (272) passes through the fourth strip hole (271) and is threadedly connected to the L-shaped plate (25).

5. A molecular pump main shaft dynamic balance detection bracket according to claim 4, characterized in that: The invention also comprises an adjusting column (26), a third screw (252) and a third bearing (261), wherein the adjusting column (26) is slidably connected to the L-shaped plate (25), the adjusting column (26) moves up and down relative to the L-shaped plate (25), the L-shaped plate (25) is formed with a third strip hole (251), the third screw (252) passes through the third strip hole (251) and is threadedly connected to the adjusting column (26), and the third bearing (261) is installed at one end of the adjusting column (26) away from the third screw (252).

6. A molecular pump main shaft dynamic balance detection bracket according to claim 1, characterized in that: It also includes a first screw (213) and an adjusting nut (28); the side plate (211) is formed with a first strip hole (212); the first screw (213) passes through the first strip hole (212) and is threadedly connected to the V-shaped plate (22); one end of the adjusting nut (28) is threadedly connected to the sliding seat (21), and the other end is in contact with the bottom surface of the V-shaped plate (22).

7. A molecular pump main shaft dynamic balance detection bracket according to claim 1, characterized in that: It also includes a second screw (243), the waist plate (24) is formed with a second strip-shaped hole (242), and the second screw (243) passes through the second strip-shaped hole (242) and is threadedly connected to the clamping plate (23).

8. The bracket for detecting dynamic balance of a molecular pump spindle according to claim 1, characterized in that: It also includes a rotating handle (29) and a screw rod (291), wherein the screw rod (291) is rotatably connected to the sliding seat (21), the rotating handle (29) is fixedly connected to the screw rod (291), and the screw rod (291) is threadedly connected to the first nut.

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