CN109454581B

CN109454581B - Follow-up rotation preventing device for fastener

Info

Publication number: CN109454581B
Application number: CN201811116813.1A
Authority: CN
Inventors: 时春雨; 高亚春; 史航; 王留生
Original assignee: Xuji Group Co Ltd; Xuchang Xuji Wind Power Technology Co Ltd
Current assignee: Xuji Group Co Ltd; Xuchang Xuji Wind Power Technology Co Ltd
Priority date: 2018-09-25
Filing date: 2018-09-25
Publication date: 2020-12-08
Anticipated expiration: 2038-09-25
Also published as: CN109454581A

Abstract

The invention relates to a follow-up rotation preventing device for a fastener. This fastener is prevented following and is changeed device including being used for with the fastener that wants the fastening and only changes complex sleeve, but sleeve outside coaxial arrangement has coaxial pivoted return piece, is equipped with between return piece and the sleeve and only changes locking unblock spare, and the return piece still is connected with the containment part through the rope, containment part has and is used for only changing complex bayonet socket with corresponding fastener. With the sleeve suit in the one end of fastener, the bayonet socket that will hold down the part clamps on close fastener, utilize the spline locking unlocking piece to die the return piece lock on the sleeve, the rope is taut gradually when using spanner fastening piece other end to take place to follow the commentaries on classics phenomenon, sleeve and hold down the part and can not take place relative rotation, only need the adjustment to stop when the device installation is dismantled simultaneously and lock the unlocking piece, the simple quick one of fastening process can operate, the inconvenient operation when having solved among the prior art processing fastener and following the commentaries on classics, fastening inefficiency problem.

Description

Follow-up rotation preventing device for fastener

Technical Field

The invention relates to a follow-up rotation preventing device for a fastener.

Background

When parts or components are assembled, two workpieces to be fastened are fixed together by using a fastener, the fastener is usually matched with a bolt and a nut, when the bolt and the nut are fastened to a certain degree, the bolt or the nut is continuously fastened, the follow-up rotation of the bolt or the nut is caused, and the workpieces to be fastened cannot be fixed by adjusting the bolt or the nut after the follow-up rotation. The method for preventing follow-up rotation at present is to prevent the emergence of follow-up rotation phenomenon with two spanners application opposite direction's power on bolt and nut, and this kind of method often single can't be operated and when the interval between two sets of bolts is less or the operating space is narrow, and the operation is inconvenient, and fastening efficiency is low.

Disclosure of Invention

The invention aims to provide a fastener follow-up rotation preventing device which is used for solving the problems of inconvenience in operation and low fastening efficiency in the process of processing follow-up rotation of a fastener in the prior art.

In order to achieve the purpose, the technical scheme of the fastener follow-up rotation preventing device is as follows: the fastener is prevented following and is changeed the device including being used for with the fastener that wants the fastening and only changes complex sleeve, but sleeve outside coaxial arrangement has coaxial pivoted return piece, be equipped with between return piece and the sleeve and only change locking unblock spare, return piece still is connected with the system part through the rope, system part has and is used for only changing complex bayonet socket with corresponding fastener, and the rope is deviated from its rotation center with the hookup location of return piece.

The invention has the beneficial effects that: sleeving a sleeve on a fastener, clamping a bayonet of a restraining part at one end of a close fastener, locking a return block on the sleeve by using a rotation-stopping locking and unlocking piece, connecting the return block and the restraining part by using a rope, and deviating the connecting position of the rope return block from the rotation center of the return block; when the other end of the fastening piece is fastened by using the wrench, the rope is gradually tensioned, the sleeve and the traction part are tensioned and fixed by the rope and cannot relatively rotate, and the corresponding fastening piece cannot rotate; when the device needs to be disassembled when fastening is completed, the rotation-stopping locking and unlocking piece is adjusted to release the return block, the return block and the sleeve rotate relatively under the tension of the rope, and the device can be easily taken down when the tension of the rope disappears. The invention solves the problem that the fixed-standby fastener cannot be sufficiently fastened due to follow-up rotation, and meanwhile, only by adjusting the rotation-stopping locking and unlocking piece during installation and disassembly, the fastening process can be operated simply and quickly by a single person, and the fastening efficiency is effectively improved.

Furthermore, the return block is arranged at the top of the sleeve through a positioning column at the top of the sleeve, and a return spring is arranged between the return block and the sleeve; when the sleeve is disassembled, the movement between the return block and the sleeve is buffered, and the return block can return to the position during assembly.

Furthermore, the return spring is a traction spring and is respectively connected with the return block and the sleeve along the axial direction of the sleeve.

Furthermore, more than two traction springs are uniformly arranged around the circumference of the sleeve; the stress of the return block is more uniform.

Furthermore, the return block is arranged at the top of the sleeve through a positioning column at the top of the sleeve, and the rotation-stopping locking and unlocking piece is a compression nut in threaded fit with the positioning column; the return block is pressed on the sleeve by the nut which is provided with the thread on the positioning column and is matched with the thread, so that the rotation of the return block and the sleeve is prevented.

Further, the compression nut is provided with a handle extending in a radial direction; the operation of the compression nut is facilitated.

Furthermore, one of the return block and the sleeve is provided with a protrusion on the surface adjacent to the other, and the other is provided with a concave part corresponding to the protrusion; through setting up arch and recess, further prevent that sleeve and return block from taking place to rotate.

Further, the restraining component is a sleeve type rotation stopping sleeve; the bayonet of the sleeve is matched with the fastening piece, so that the fastening piece and the sleeve are prevented from rotating.

Further, the sleeve is connected with the restraining component through a handle, the position where the handle is connected with the sleeve is located on the axis of the sleeve and is in rotating fit with the sleeve, and the handle and the restraining component are also in rotating fit; the handle and the sleeve, and the handle and the traction part can rotate in the circumferential direction, so that the relative positions of the rotary drum and the traction part can be conveniently adjusted, and meanwhile, the sleeve and the traction part are connected by utilizing the handle, so that the sleeve and the traction part are conveniently carried.

Furthermore, the handle is a telescopic handle which can adjust the distance between the sleeve and the restraining component through telescoping; the length of the telescopic handle is adjusted according to the positions of the adjacent fasteners, so that the fastener follow-up rotation preventing device is suitable for fasteners with different distances.

Drawings

FIG. 1 is a general schematic view of a fastener anti-follow-up device of the present invention;

FIG. 2 is a cross-sectional view of a first sleeve of the fastener anti-rotation device of the present invention;

FIG. 3 is a schematic view of a fastener anti-follow-up device of the present invention in use;

wherein: 1-a first sleeve, 2-a return spring, 3-a fastening nut, 4-a return block, 5-a nylon rope, 6-a connecting rod, 7-a second sleeve, 8-an upper snap spring, 9-a bulge, 10-a lower snap spring, 11-a pull ring support, 12-a handle, 13-a pull ring, 14-a nut, 15-a wrench, 16-a workpiece to be fastened, and 17-a bolt.

Detailed Description

The following rotation preventing device for the fastener of the invention is further described in detail with reference to the accompanying drawings.

In the embodiment of the fastener anti-rotation device of the invention, as shown in fig. 1 and 2, the fastener anti-rotation device comprises a first sleeve 1 and a second sleeve 7, the inner holes of which are regular hexagons, and the fastener formed by a bolt and a nut can be fastened, the upper ends of the two sleeves are closed, and the inner hole at the lower part of the sleeve is a regular hexagon. The first sleeve 1 is provided with a cylinder which is collinear with the axis of the first sleeve 1, the upper end of the cylinder is provided with a thread, the cylinder is sleeved with a return block 4, the upper part of the return block 4 is provided with a fastening nut 3 which is matched with the thread at the upper end of the cylinder, and the fastening nut 3 is welded with a handle 12 along the radial direction. The contact surface of the return block 4 and the first sleeve 1 is provided with a bulge 9 with a circular arc-shaped section, and the contact surface of the first sleeve 1 and the return block 4 is provided with a circular arc-shaped groove matched with the bulge 9 in shape. Still be provided with return spring 2 along the axis direction of first sleeve 1 between return block 4 and the first sleeve 1, return spring 2 sets up two along the axis direction symmetry of first sleeve 1. The return block 4 and the second sleeve 7 are welded with pull ring supports 11, pull rings 13 are arranged on the pull ring supports 11, and the nylon rope 5 is combined with the pull rings 13 to connect the return block 4 and the second sleeve 7. The telescopic connecting rod 6 is inserted on the central line of the first sleeve 1 and the second sleeve 7, and the telescopic connecting rod 6 is fixed in the centers of the two sleeves by a lower clamp spring 10 and an upper clamp spring 8.

In the embodiment, the inner holes of the first sleeve 1 and the second sleeve 7 are regular hexagons and have the same size as the bolt or the nut to be fastened; current fastener tip is mostly regular hexagon, sets up the sleeve into regular hexagon and can make the fastener prevent following the application scope of commentaries on classics device wider. In other embodiments, the corresponding shape of the inner hole of the sleeve can be designed according to the specific shape of the bolt or the nut, such as a triangle, a square and other irregular shapes. The second sleeve is a restraining member for restraining the first sleeve 1, and functions to fix the nut or the bolt head together, so as to facilitate restraining the first sleeve 1.

Be provided with the cylinder that the top was threaded on the closed end of first sleeve 1, make return block 4 and fastening nut 3 suit on the cylinder, fastening nut 3 can be deadly on first sleeve 1 with return block 4 lock. It can be understood that the cylinder on the first sleeve 1 can be used for positioning the return block 4 and the fastening nut 3 on the first sleeve 1, the fastening nut 3 can be used for locking and unlocking the rotation-stopping piece, the return block 4 is locked on the first sleeve 1, so that the relative rotation between the return block and the first sleeve can not occur, and the cylinder can be a cylinder or other positioning columns. In addition, a pin hole which is the same as the axial direction of the first sleeve can be formed between the return block and the first sleeve, and the return block is locked on the first sleeve through the positioning pin.

The limiting structure is formed by the protrusion 9 on the return block 4 and the groove on the first sleeve 1, the cross section of the protrusion 9 is arc-shaped, the relative rotation between the return block 4 and the first sleeve 1 is further prevented, and the two limiting structures are symmetrically arranged. The limiting structure formed by the protrusion 9 and the groove can further prevent the return block 4 and the first sleeve 1 from rotating relatively after the fastening nut 3 is pressed tightly, meanwhile, the semicircular section is convenient to ensure that the return block 4 of the follow-up rotation prevention device for dismounting the fastening piece can be smoothly separated from the first sleeve 1, and due to the invention concept, the protrusion can be arranged on the sleeve and the groove corresponding to the protrusion is arranged on the return block to form the limiting structure, and in addition, the number of the limiting structures can be set according to the actual situation; the section of the bulge can also adopt a trapezoid or triangle or other structures with inclined plane shapes, so that the return block and the sleeve can be easily separated.

The welding has pull ring support 11 on second sleeve 7 and return block 4, is connected with the pull ring 13 that nylon rope 5 of being convenient for passed on pull ring support 11, and nylon rope 5 takes place to follow the rope of commentaries on classics time drive sleeve and takes place to rotate as the fastener of tractive second sleeve 7, and nylon rope 5 is also by gradual taut, prevents the sleeve to take place to rotate after nylon rope 5 is taut, and then prevents that the fastener from following the phenomenon of changeing and taking place. The rope needs to be closely wound outside the sleeve, and flexible tensile ropes such as steel wire ropes or high-fiber ropes can also be adopted.

The axial direction of following first sleeve 1 between return block 4 and the first sleeve 1 is provided with return spring 2 to the symmetry, and this return spring 2 is for carrying out towed traction spring to return block 4, and return spring 2 is used for dismantling fastener and prevents following return block 4 when changeing the device and can directly get back to protruding 9 and the spacing complex position of recess under return spring 2's pulling force, and return spring 2 can play certain cushioning effect to return block 4 when releasing rope pulling force simultaneously. In other embodiments, the return springs can be uniformly arranged around the circumference of the sleeve in other quantities, so that the stress of the return blocks is more uniform.

The fastening nut 3 is further provided with a handle 12 in the radial direction for facilitating the handling of the fastening nut 3, which handle 12 is welded on the outside of the fastening nut 3 in this embodiment. In other embodiments, the handle may be detachably disposed on the fastening nut, for example, the handle may be inserted into the fastening nut by using a screw connection or a secondary opening on the fastening nut, so that the overall structure is compact, and the fastening nut may be operated by using a wrench without disposing the handle.

The telescopic connecting rod 6 is limited on the central axis of the sleeve by the upper clamp spring 8 and the lower clamp spring, so that the two sleeves are convenient to carry and transport; the link may not be used in other embodiments for simplicity of construction.

When the fastener follow-up rotation preventing device of the embodiment is used, as shown in fig. 3, a plurality of groups of fasteners are arranged on a workpiece 16 to be fastened, the length of the telescopic connecting rod 6 is adjusted, the second sleeve 7 is sleeved on one nut 14, a pull ring on the second sleeve 7 is opposite to the other nut, the return block 4 is pressed on the first sleeve 1 by rotating a handle 12 on the fastening nut 3, and meanwhile, the first sleeve 1 and the return block 4 are prevented from rotating relative to each other by a limiting mechanism between the two; rotating the first sleeve 1 around the connecting rod 6 to relatively tighten the nylon rope 5, and then sleeving the first sleeve 1 on a nut 14 to be fastened; at the moment, the two sleeves are tensioned by the nylon rope 5, the bolt 17 is fastened by the wrench 15, and the two nuts are also fixed as the two sleeves are tensioned and fixed by the nylon rope 5; when fastening force continues to increase, fastening nut on the first sleeve 1 drives the first sleeve 1 to rotate with the wheel in a small range, and the increase of the tension force of the nylon rope 5 prevents the nut from continuing to rotate with the wheel. After one nut is fastened, the other bolt can be directly fastened without detaching the fastener follow-up rotation preventing device; in addition, this fastener is prevented following and is changeed device also can the suit on the bolt, fastens the nut through the spanner.

When dismantling this fastener and preventing following the commentaries on classics device, because the tensile force of nylon rope 5, two sleeves can not directly be extracted, unscrew fastening nut 3 this moment, and the arc surface of arch 9 makes and loses limiting displacement at the roof pressure that does not have fastening nut 3, takes place relative rotation under the tensile force of nylon rope 5 between return block 4 and the first sleeve 1, and the tensile force of nylon rope 5 also obtains releasing, can easily take off the sleeve.

The invention can effectively solve the problem of follow-up rotation of the fastening fastener and solve the problem that the fastening fastener cannot be fastened fully due to follow-up rotation; the invention can be operated by a single person, and the operation is simple, reliable and efficient; only the fastening nut needs to be adjusted when the mounting and dismounting are carried out, the operation is simple and quick, and the fastening efficiency is effectively improved.

Claims

1. The utility model provides a device is rotated with following to fastener which characterized in that: the locking device comprises a sleeve which is used for being in rotation stop fit with a fastening piece to be fastened, a return block which can coaxially rotate is coaxially arranged outside the sleeve, a rotation stop locking and unlocking piece is arranged between the return block and the sleeve, the return block is also connected with a restraining part through a rope, the restraining part is provided with a bayonet which is used for being in rotation stop fit with the corresponding fastening piece, and the connecting position of the rope and the return block deviates from the rotation center of the rope; the sleeve is sleeved at one end of a fastening piece to be fastened, the bayonet of the restraining part is clamped at one end of the adjacent fastening piece, the return block is locked on the sleeve by the rotation-stopping locking and unlocking piece, when the other end of the fastening piece to be fastened is fastened by using a wrench, the rope is gradually tensioned, the sleeve and the restraining part are tensioned and fixed by the rope and cannot relatively rotate, and the corresponding fastening piece cannot rotate; when the device needs to be disassembled when fastening is completed, the rotation-stopping locking and unlocking piece is adjusted to release the return block, the return block and the sleeve rotate relatively under the tension of the rope, and the tightening force of the rope disappears to take down the fastening piece to prevent the rotation-following device.

2. The fastener anti-heel-turn device of claim 1, wherein: the return block is arranged at the top of the sleeve through a positioning column at the top of the sleeve, and a return spring is arranged between the return block and the sleeve.

3. The fastener anti-heel-turn device of claim 2, wherein: the reset spring is a traction spring and is respectively connected with the reset block and the sleeve along the axial direction of the sleeve.

4. The fastener anti-heel-turn device of claim 3, wherein: the number of the traction springs is more than two, and the traction springs are uniformly arranged around the circumference of the sleeve.

5. The fastener anti-heel-turn device of claim 2, wherein: the return block is arranged at the top of the sleeve through a positioning column at the top of the sleeve, and the rotation-stopping locking-unlocking piece is a compression nut in threaded fit with the positioning column.

6. The fastener anti-heel-turn device of claim 5, wherein: the compression nut is provided with a radially extending handle.

7. The fastener anti-follow device of claim 5 or 6, wherein: one of the return block and the sleeve is provided with a bulge on the surface adjacent to the other return block and the sleeve is provided with a concave part corresponding to the bulge.

8. The fastener anti-heel-turn device of claim 1, wherein: the restraining component is a sleeve type rotation stopping sleeve.

9. The fastener anti-heel-turn device of claim 1, wherein: the sleeve is connected with the restraining component through a handle, the position where the handle is connected with the sleeve is located on the axis of the sleeve and is in running fit with the sleeve, and the handle and the restraining component are also in running fit.

10. The fastener anti-heel-turn device of claim 9, wherein: the handle is a telescopic handle capable of adjusting the distance between the sleeve and the restraining component in a telescopic mode.