Device for detecting and adjusting the gap between two sides of a rotating body in a closed or semi-closed cavity

Abstract

The present invention relates to a device for detecting and adjusting the gap on both sides of a rotating body in a closed or semi-closed cavity. The device is composed of a connecting sleeve, a bearing, an adjusting seat, an adjusting locking nut, a protective cover, a bearing limit nut and a connecting seat; the connecting sleeve and the adjusting seat are connected by a bearing, the connecting sleeve can rotate freely relative to the adjusting seat, and the axial direction is an integral linkage structure. The inner hole of the connecting seat and the outer circle of the adjusting seat are connected by threaded transmission, and the adjusting seat is provided with a locking device and a sealing protection device; the connecting seat is installed on the outer cover side cover of the rotating body, the connecting sleeve is connected to the shaft head at one end of the rotating body, and the adjusting seat is rotated to drive the rotating body to move axially to achieve the function of adjustment and detection; the connecting seat is provided with a scale value to display the precise adjustment position. Beneficial effect: the axial gap is eliminated during adjustment, the rotating body positioning can be accurately adjusted, and the actual side spacing can be detected.

Description

Technical Field

[0001] The invention relates to a shaft system component, in particular to a device for detecting and adjusting the gap on both sides of a rotating body in a closed or semi-closed cavity. Background Art

[0002] In the field of mechanics, it is a very common structure to set a rotating body in a closed or semi-closed cavity. It requires very precise axial positioning to ensure mechanical efficiency. If the gap on both sides is too small, friction will occur. If the gap is too large, it will cause leakage on both sides. If the gap on both sides is uneven, it will cause friction on one side and leakage on the other side, and the ideal mechanical efficiency cannot be achieved. In actual use, too many intermediate connectors make it difficult to allocate the accuracy of the dimensional chain. The processing accuracy requirements of each component are very high, or even cannot be guaranteed. Moreover, the rotating body is set in the box, and the actual assembly gap cannot be detected. The cost is too high or cannot be achieved, so the standard can only be lowered and production can be downgraded, thereby reducing mechanical efficiency and causing waste. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a device for detecting and adjusting the gap on both sides of a rotating body in a closed or semi-closed cavity, which can accurately adjust the axial position of the rotating body and detect the gap between the two sides in real time.

[0004] The technical solution of the present invention to solve the above technical problems is as follows: a device for detecting and adjusting the gap on both sides of a rotating body in a closed or semi-closed cavity, comprising a connecting sleeve, a bearing, an adjustment seat and a connecting seat, wherein the connecting sleeve is coaxially sleeved on one end of the rotating body shaft, the connecting sleeve can rotate around the central axis of the rotating body shaft following the rotating body shaft, the bearing is sleeved on the outer periphery of the connecting sleeve, the connecting seat is fixedly connected to a box for placing the rotating body shaft, the connecting seat and the adjustment seat are both annular, the adjustment seat is arranged between the connecting seat and the bearing, and the outer periphery of the adjustment seat is spirally driven with the inner side wall of the connecting seat The adjusting seat can drive the rotating body shaft to move along the central axis direction of the rotating body shaft, a positioning device is provided at one end of the connecting sleeve close to the rotating body shaft shoulder, and the positioning device is used to position the bearing and the rotating body shaft, and a bearing adjustment device is provided at one end of the connecting sleeve away from the rotating body shaft shoulder, and the bearing adjustment device is used to adjust the bearing clearance, and a limiting device is also provided on the adjusting seat, and the limiting device is used to keep the adjusting seat and the connecting seat relatively still, and a sealing device is provided at one end of the adjusting seat away from the rotating body shaft shoulder to seal the lubricating oil in the sealing device.

[0005] The beneficial effects of the present invention are as follows: the axial clearance is eliminated during adjustment, the positioning of the rotating body can be accurately adjusted, and the actual side spacing can be detected.

[0006] Based on the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, a keyway is provided on the inner side wall of the connecting sleeve, and the keyway runs through both ends of the connecting sleeve. A key is provided on the shaft of the rotating body, and the key matches the keyway.

[0008] The beneficial effect of adopting the above further scheme is that the keyway runs through both ends of the connecting sleeve, which facilitates the installation and removal of the rotating body shaft and the connecting sleeve. The connection between the key and the keyway can make the connecting sleeve rotate synchronously with the rotating body shaft.

[0009] Furthermore, two bearings are provided, an adjustment seat positioning ring is provided on the inner side wall of the adjustment seat, the adjustment seat positioning ring is located between the two bearings, and two sides of the adjustment seat positioning ring are respectively in contact with the two bearings.

[0010] The beneficial effect of adopting the above-mentioned further scheme is that both ends of the two bearings have been limited, and the clamping cooperation between the rotating body connecting nut and the rotating body shaft shoulder has also made the connecting sleeve and the rotating body shaft connected as one. The two sides of the adjusting seat positioning ring are respectively abutted against the two bearings, so that the adjusting seat can push the rotating body shaft to move axially when the spiral transmission on the connecting seat moves axially relative to the connecting seat. The setting of the two bearings ensures good bearing rolling when the connecting sleeve and the adjusting seat rotate relative to each other, thereby reducing the friction coefficient.

[0011] Further, the positioning device includes a connecting sleeve retaining ring, which is arranged at one end of the connecting sleeve close to the shoulder of the rotating body shaft, one side of the connecting sleeve retaining ring abuts against the shoulder of the rotating body shaft, and the other side of the connecting sleeve retaining ring abuts against the bearing close to the connecting sleeve retaining ring; one end of the rotating body shaft passes through the connecting sleeve and two rotating body connecting nuts are threadedly connected to its passing end, and the two rotating body connecting nuts abut against each other after being tightened, and the rotating body connecting nut close to the connecting sleeve abuts against the connecting sleeve.

[0012] The beneficial effect of adopting the above further scheme is that, on the one hand, the connecting sleeve retaining ring can position the bearing, and on the other hand, when the adjusting seat pushes the connecting sleeve to move, the rotating body connecting nut and the rotating body shaft shoulder are clamped together to connect the connecting sleeve and the rotating body shaft as one, and the connecting sleeve can push the rotating body shaft to move along its central axis direction.

[0013] Furthermore, the bearing adjustment device includes two bearing limit nuts, and a thread is provided on the outer periphery of one end of the connecting sleeve away from the shoulder of the rotating body shaft. The two bearing limit nuts are threadedly connected to the end of the connecting sleeve away from the shoulder of the rotating body shaft and abut against each other, and the bearing limit nut close to the bearing abuts against the bearing close to the bearing limit nut.

[0014] The beneficial effect of adopting the above further solution is that the two bearing limit nuts can adjust the clearance between the two bearings and lock them to prevent loosening.

[0015] Furthermore, the limiting device includes an adjusting locking nut, which is threadedly connected to the outer periphery of the adjusting seat and abuts against an end of the connecting seat away from the shaft shoulder of the rotating body.

[0016] The beneficial effect of adopting the above further solution is that adjusting the locking nut can prevent the connecting sleeve and the adjustment seat from rotating or shifting when the position of the rotating body shaft does not need to be adjusted.

[0017] Furthermore, the sealing device includes a protective cover, which is a cavity structure with one side open. The protective cover is threadedly connected to the outer periphery of the adjustment seat and abuts against the side of the adjustment locking nut away from the shaft shoulder of the rotating body.

[0018] The beneficial effect of adopting the above further solution is that the protective cover can seal the lubricating oil in the device on the one hand, and can lock and adjust the locking nut to prevent it from loosening on the other hand.

[0019] Furthermore, a plurality of adjusting locking nut adjustment holes are evenly spaced along the circumferential direction on the outer circumference of the adjusting locking nut, and the central axis of each adjusting locking nut adjustment hole is perpendicular to the central axis of the rotating body shaft.

[0020] The beneficial effect of adopting the above further solution is that it is easy to adjust the loosening and tightening of the locking nut.

[0021] Furthermore, a plurality of protective cover adjustment holes are evenly spaced along the circumferential direction on the outer circumference of the protective cover, and the central axis of each protective cover adjustment hole is perpendicular to the central axis of the rotating body shaft.

[0022] The beneficial effect of adopting the above further solution is that it is easy to loosen and tighten the protective cover.

[0023] Furthermore, a plurality of adjustment seat adjustment holes are provided on one end of the adjustment seat away from the shoulder of the rotating body shaft, and the plurality of adjustment seat adjustment holes are evenly spaced along the circumferential direction of the adjustment seat, and the central axis of each adjustment seat adjustment hole is parallel to the central axis of the rotating body shaft.

[0024] The beneficial effect of adopting the above further solution is that it is easy to loosen and tighten the spiral drive of the adjustment seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the device for detecting and adjusting the gap between the two sides of the rotating body in a closed or semi-closed cavity provided by the present invention;

[0026] Figure 2 for Figure 1 The right side view of the adjustment seat of the gap detection and adjustment device on both sides of the rotating body in the closed or semi-closed cavity is shown.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1. Connecting sleeve, 2. Bearing, 3. Adjusting seat, 4. Connecting seat, 5. Adjusting locking nut, 6. Protective cover, 7. Bearing limit nut, 8. Adjusting locking nut adjustment hole, 9. Protective cover adjustment hole, 10. Rotating body shaft, 11. Key, 12. Connecting sleeve retaining ring, 13. Adjusting seat locating ring, 14. Keyway, 15. Rotating body shaft shoulder, 16. Adjusting seat adjustment hole, 17. Connecting seat fixing bolt hole, 18. Rotating body connecting nut. DETAILED DESCRIPTION

[0029] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0030] like Figure 1 and 2As shown, a device for detecting and adjusting the gap on both sides of a rotating body in a closed or semi-closed cavity comprises a connecting sleeve 1, a bearing 2, an adjusting seat 3 and a connecting seat 4. The connecting sleeve 1 is coaxially sleeved on one end of a rotating body shaft 10. The connecting sleeve 1 can rotate around the central axis of the rotating body shaft 10 following the rotating body shaft 10. The bearing 2 is sleeved on the outer periphery of the connecting sleeve 1. The connecting seat 4 is fixedly connected to a box for placing the rotating body shaft 10. The connecting seat 4 and the adjusting seat 3 are both annular. The adjusting seat 3 is arranged between the connecting seat 4 and the bearing 2. The outer periphery of the adjusting seat 3 is spirally connected to the inner side wall of the connecting seat 4. The entire seat 3 can drive the rotating shaft 10 to move along the central axis direction of the rotating shaft 10. A positioning device is provided at one end of the connecting sleeve 1 close to the rotating shaft shoulder 15. The positioning device is used to position the bearing 2 and the rotating shaft 10. A bearing adjustment device is provided at one end of the connecting sleeve 1 away from the rotating shaft shoulder 15. The bearing adjustment device is used to adjust the clearance of the bearing 2. A limiting device is also provided on the adjustment seat 3. The limiting device is used to keep the adjustment seat 3 and the connecting seat 4 relatively still. A sealing device is provided at one end of the adjustment seat 3 away from the rotating shaft shoulder 15 to seal the lubricating oil in the device.

[0031] A keyway 14 is formed on the inner wall of the connecting sleeve 1 , and the keyway 14 runs through both ends of the connecting sleeve 1 . A key 11 is formed on the rotating shaft 10 , and the key 11 matches the keyway 14 .

[0032] Two bearings 2 are provided, and an adjustment seat positioning ring 13 is provided on the inner side wall of the adjustment seat 3 . The adjustment seat positioning ring 13 is located between the two bearings 2 , and two sides of the adjustment seat positioning ring 13 are respectively in contact with the two bearings 2 .

[0033] The positioning device includes a connecting sleeve retaining ring 12, which is arranged at one end of the connecting sleeve 1 close to the rotating body shaft shoulder 15, one side of the connecting sleeve retaining ring 12 abuts against the rotating body shaft shoulder 15, and the other side of the connecting sleeve retaining ring 12 abuts against the bearing 2 close to the connecting sleeve retaining ring 12; one end of the rotating body shaft 10 passes through the connecting sleeve 1 and two rotating body connecting nuts 18 are threadedly connected to its passing end, and the two rotating body connecting nuts 18 abut against each other after being tightened, and the rotating body connecting nut 18 close to the connecting sleeve 1 abuts against the connecting sleeve 1.

[0034] The bearing adjustment device includes two bearing limit nuts 7. The outer periphery of the end of the connecting sleeve 1 away from the rotating body shaft shoulder 15 is provided with a thread. The two bearing limit nuts 7 are threadedly connected to the end of the connecting sleeve 1 away from the rotating body shaft shoulder 15 and abut against each other. The bearing limit nut 7 close to the bearing 2 abuts against the bearing 2 close to the bearing limit nut 7.

[0035] The limiting device comprises an adjusting locking nut 5 , which is threadedly connected to the outer periphery of the adjusting seat 3 and abuts against an end of the connecting seat 4 away from the shaft shoulder 15 of the rotating body.

[0036] The sealing device includes a protective cover 6 , which is a cavity structure with one side open. The protective cover 6 is threadedly connected to the outer periphery of the adjustment seat 3 and abuts against the side of the adjustment locking nut 5 away from the shaft shoulder 15 of the rotating body.

[0037] A plurality of adjusting lock nut adjustment holes 8 are evenly spaced along the circumferential direction on the outer circumference of the adjusting lock nut 5 , and the central axis of each adjusting lock nut adjustment hole 8 is perpendicular to the central axis of the rotating body shaft 10 .

[0038] A plurality of protective cover adjustment holes 9 are evenly spaced along the circumferential direction on the outer circumference of the protective cover 6 , and the central axis of each protective cover adjustment hole 9 is perpendicular to the central axis of the rotating body shaft 10 .

[0039] A plurality of adjustment seat adjustment holes 16 are provided on one end of the adjustment seat 3 away from the rotating body shaft shoulder 15 . The plurality of adjustment seat adjustment holes 16 are evenly spaced along the circumferential direction of the adjustment seat 3 . The central axis of each adjustment seat adjustment hole 16 is parallel to the central axis of the rotating body shaft 10 .

[0040] One end of the connecting seat 4 close to the rotating body shaft shoulder 15 is provided with connecting seat fixing bolt holes 17 evenly spaced along its circumferential direction. The connecting seat 4 is fixedly connected to the box body through the connecting seat fixing bolt holes 17 and bolts.

[0041] Bearing 2 is a thrust ball bearing.

[0042] The outer circle of the connecting seat 4 is engraved with scales, and according to the thread pitch of the adjusting seat 3, the scale value of the accuracy suitable for the actual demand is set to ensure the effect of accurate positioning.

[0043] The present application only provides a schematic diagram of the connection structure between one end of the rotating body shaft 10 and the rotating body positioning device. In actual use, any structure that meets the requirements for accurate positioning of the rotating body can be used.

[0044] The fixed connection mentioned in the present application can be bolt connection, welding or bonding.

[0045] Working principle:

[0046] 1. Axis position adjustment

[0047] according to Figure 1 In the position shown, remove the adjustment locking nut 5 and the protective cover 6, insert a specific tool into the adjustment seat adjustment hole 16 of the adjustment seat 3, rotate the adjustment seat 3 in the forward direction, the adjustment seat 3 is connected to the connecting seat 4 with a spiral transmission, the adjustment seat 3 moves to the left along the axis, the adjustment seat 3 will push the bearing 2 on the left, the bearing 2 will push the connecting sleeve retaining ring 12, the connecting sleeve retaining ring 12 will push the rotating body shaft shoulder 15 to make the rotating body shaft 10 move to the left along the axis; rotate the adjustment seat 3 in the reverse direction, the adjustment seat 3 moves to the right along the axis, the adjustment seat 3 will push the bearing 2 on the right, the bearing 2 will push the bearing limit nut 7 to move to the right, the bearing limit nut 7 drives the connecting sleeve 1 to move to the right, the connecting sleeve 1 pushes the rotating body connecting nut 18 to move to the right, and the rotating body connecting nut 18 drives the rotating body shaft 10 to move to the right along the axis.

[0048] 2. Position detection of rotating body

[0049] First, rotate the adjustment seat 3 forward to move the rotating body axis 10 to the rightmost end, and record the scale value on the connecting seat 4 as position A; then rotate the adjustment seat 3 reversely to move the rotating body axis 10 to the leftmost end, and record the scale value on the connecting seat 4 as position B. The distance between the scale values ​​of points A and B is S, which is the maximum left-right displacement of the axis. Adjust the positive adjustment seat 3 to the right by a distance of S / 2, and lock the rotating body positioning device (tighten the locking nut 5 and the protective cover 6) to complete the uniform distribution of the spacing on both sides of the rotating body position and obtain accurate values.

[0050] The device in the present application abuts the connecting sleeve retaining ring 12 against the rotating body shaft shoulder 15, the bearing 2 abuts against the connecting sleeve retaining ring 12, the adjusting seat positioning ring 13, and the bearing limit nut 7, and the rotating body connecting nut 18 abuts against the connecting sleeve 1, and the axial clearance is eliminated, so the centering position of the shaft can be accurately adjusted.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for detecting and adjusting the gap between two sides of a rotating body in a closed or semi-closed cavity, characterized in that: The invention comprises a connecting sleeve (1), a bearing (2), an adjustment seat (3) and a connecting seat (4); the connecting sleeve (1) is coaxially sleeved on one end of a rotating shaft (10); the connecting sleeve (1) can rotate around the central axis of the rotating shaft (10) following the rotating shaft (10); the bearing (2) is sleeved on the outer periphery of the connecting sleeve (1); the connecting seat (4) is fixedly connected to a box for placing the rotating shaft (10); the connecting seat (4) and the adjustment seat (3) are both annular; the adjustment seat (3) is arranged between the connecting seat (4) and the bearing (2); the outer periphery of the adjustment seat (3) is spirally connected to the inner side wall of the connecting seat (4); the adjustment seat (3) ) can drive the rotating body shaft (10) to move along the central axis direction of the rotating body shaft (10); the end of the connecting sleeve (1) close to the rotating body shaft shoulder (15) is provided with a positioning device, and the positioning device is used to position the bearing (2) and the rotating body shaft (10); the end of the connecting sleeve (1) away from the rotating body shaft shoulder (15) is provided with a bearing adjustment device, and the bearing adjustment device is used to adjust the clearance of the bearing (2); the adjusting seat (3) is also provided with a limiting device, and the limiting device is used to keep the adjusting seat (3) and the connecting seat (4) relatively still; the end of the adjusting seat (3) away from the rotating body shaft shoulder (15) is provided with a sealing device for Lubricating oil in the sealing device; the positioning device comprises a connecting sleeve retaining ring (12), the connecting sleeve retaining ring (12) is arranged at one end of the connecting sleeve (1) close to the rotating body shaft shoulder (15), one side of the connecting sleeve retaining ring (12) abuts against the rotating body shaft shoulder (15), and the other side of the connecting sleeve retaining ring (12) abuts against the bearing (2) close to the connecting sleeve retaining ring (12); one end of the rotating body shaft (10) passes through the connecting sleeve (1) and two rotating body connecting nuts (18) are threadedly connected on the passing end, and the two rotating body connecting nuts (18) abut against each other after being tightened, and the rotating body connecting nuts (18) close to the connecting sleeve (1) ) abuts against the connecting sleeve (1); the bearing adjustment device comprises two bearing limit nuts (7), the outer periphery of one end of the connecting sleeve (1) away from the rotating body shaft shoulder (15) is provided with threads, the two bearing limit nuts (7) are threadedly connected to the end of the connecting sleeve (1) away from the rotating body shaft shoulder (15) and abut against each other, and the bearing limit nut (7) close to the bearing (2) abuts against the bearing (2) close to the bearing limit nut (7); the limiting device comprises an adjusting locking nut (5), the adjusting locking nut (5) is threadedly connected to the outer periphery of the adjusting seat (3) and abuts against the end of the connecting seat (4) away from the rotating body shaft shoulder (15);The sealing device comprises a protective cover (6), the protective cover (6) is a cavity structure with one side open, the protective cover (6) is threadedly connected to the outer periphery of the adjustment seat (3) and abuts against the side of the adjustment locking nut (5) away from the shaft shoulder (15) of the rotating body. ; 2. The device for detecting and adjusting the gap between two sides of a rotating body in a closed or semi-closed cavity according to claim 1, characterized in that: The inner wall of the connecting sleeve (1) is provided with a keyway (14), and the keyway (14) runs through both ends of the connecting sleeve (1). The rotating body shaft (10) is provided with a key (11), and the key (11) matches the keyway (14).

3. The device for detecting and adjusting the gap between two sides of a rotating body in a closed or semi-closed cavity according to claim 1, characterized in that: Two bearings (2) are provided, and an adjustment seat positioning ring (13) is provided on the inner side wall of the adjustment seat (3). The adjustment seat positioning ring (13) is located between the two bearings (2), and two sides of the adjustment seat positioning ring (13) are respectively in contact with the two bearings (2).

4. The device for detecting and adjusting the gap between two sides of a rotating body in a closed or semi-closed cavity according to claim 1, characterized in that: A plurality of adjusting lock nut adjustment holes (8) are evenly spaced along the circumferential direction on the outer circumference of the adjusting lock nut (5), and the central axis of each adjusting lock nut adjustment hole (8) is perpendicular to the central axis of the rotating body shaft (10).

5. The device for detecting and adjusting the gap between two sides of a rotating body in a closed or semi-closed cavity according to claim 1, characterized in that: A plurality of protective cover adjustment holes (9) are evenly spaced along the circumferential direction on the outer circumference of the protective cover (6), and the central axis of each protective cover adjustment hole (9) is perpendicular to the central axis of the rotating body shaft (10).

6. The device for detecting and adjusting the gap between two sides of a rotating body in a closed or semi-closed cavity according to any one of claims 1 to 5, characterized in that: A plurality of adjustment seat adjustment holes (16) are provided on one end of the adjustment seat (3) away from the shaft shoulder (15) of the rotating body. The plurality of adjustment seat adjustment holes (16) are evenly spaced along the circumferential direction of the adjustment seat (3), and the central axis of each of the adjustment seat adjustment holes (16) is parallel to the central axis of the rotating body shaft (10).

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