CN219865833U - Quick assembly disassembly formula stretching nut and hydraulic stretching ware - Google Patents
Quick assembly disassembly formula stretching nut and hydraulic stretching ware Download PDFInfo
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- CN219865833U CN219865833U CN202321349503.0U CN202321349503U CN219865833U CN 219865833 U CN219865833 U CN 219865833U CN 202321349503 U CN202321349503 U CN 202321349503U CN 219865833 U CN219865833 U CN 219865833U
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- hole
- stretching
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- 230000000670 limiting effect Effects 0.000 claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a quick detachable stretching nut and a hydraulic stretcher, and belongs to the technical field of stretching equipment. The stretching nut comprises a nut body, wherein the nut body comprises a first part and a second part, and the two parts are connected through a fixing column; wherein, the one end of fixed column is equipped with spacing portion, and the other end is equipped with connecting portion, and this fixed column still is equipped with the locking groove. The limiting part of the fixed column penetrates through the first mounting hole on the first part and extends into the second mounting hole on the second part to be in threaded connection. The first part slides back and forth along the fixed column, and the locking piece embedded in the first part is clamped with or separated from the locking groove on the fixed column, so that the locking or separation between the first part and the second part is realized. The clamping type assembly method is simple and convenient to operate, and can greatly shorten the assembly time between the stretching nut and the screw rod and improve the assembly efficiency.
Description
Technical Field
The utility model belongs to the technical field of stretching equipment, and particularly relates to a quick detachable stretching nut and a hydraulic stretcher.
Background
The hydraulic bolt stretcher is called as a hydraulic stretcher for short and has the functions of fastening and detaching bolts. Can be widely applied to industries such as metallurgical mine, petrochemical industry, ship industry, electric power system, rolling stock, heavy machinery and the like. The hydraulic stretcher stretches the bolt in the elastic deformation area by utilizing the elastic amplitude allowed by the material by the aid of hydraulic power provided by the ultra-high pressure pump, so that the purpose of fastening or detaching the bolt is achieved.
In the existing hydraulic stretcher, a stretching nut and a screw are usually in threaded fit. When assembling or disassembling, the stretching nut needs to be rotated for many circles to finish the connection between the stretching nut and the screw rod, so that the operation time is longer, and the working efficiency is lower. Especially in the operation of special environment such as under water, operating personnel's operating time is limited, and current assembly methods can't satisfy its quick assembly's demand.
Through searching, the application of Chinese patent application No. 201821338704.X discloses a bolt stretcher capable of being fast fastened and detached. The application comprises a shifting ring nut, a cylinder body, a piston, a connecting nut, a supporting bridge, a shifting ring and a shifting rod; the connecting nut is sleeved with a piston, the outer diameter of the piston is sleeved with a cylinder body, the shifting ring nut is screwed on the upper part of the connecting nut through a screw, the lower part of the connecting nut is connected with a supporting bridge, the upper end of the supporting bridge is connected with the cylinder body, the lower end of the supporting bridge is connected with a shifting ring, the supporting bridge is sleeved on the shifting ring, and the radial direction of the shifting ring is horizontally connected with a shifting rod; the high-pressure hose connects the hydraulic pump and the stretching cylinder. In this application, the dial ring nut screws in the upper portion of coupling nut through the screw, to the long, inefficiency's of assembly operation time between tensile nut and the screw rod problem, still not obtain effectual solution.
Disclosure of Invention
1. Problems to be solved
Aiming at the problems of long assembly time and low efficiency of the existing hydraulic stretcher between a stretching nut and a screw, the utility model provides a quick-disassembly type stretching nut and a hydraulic stretcher. The stretching nut adopts a clamping type assembly mode, so that the assembly time between the stretching nut and the screw rod can be greatly shortened, and the assembly efficiency is improved.
2. Technical proposal
In order to solve the problems, the technical scheme adopted by the utility model is as follows:
the utility model relates to a quick detachable stretching nut, which comprises a nut body, wherein the nut body comprises a first part and a second part, and the two parts are connected through a fixing column; wherein one end of the fixed column passes through the first part and extends into the second part; the first part slides back and forth along the fixed column, and the first part and the fixed column are locked or separated by the locking piece.
Further, a first mounting hole for the fixing column to pass through is formed in the first part, and a second mounting hole for the fixing column to insert is formed in the second part; the first mounting hole is a through hole, and the second mounting hole is a blind hole.
Further, one end of the fixed column is provided with a limiting part matched with the first mounting hole, the other end of the fixed column is provided with a connecting part matched with the second mounting hole, and the fixed column is also provided with a locking groove matched with the locking piece.
Further, the first mounting hole and the second mounting hole are stepped holes, and each stepped hole comprises a first connecting hole and a second connecting hole which are connected with each other, wherein the diameter of the first connecting hole is larger than that of the second connecting hole.
Further, the second mounting hole further comprises a third connecting hole, and the third connecting hole is in threaded connection with the connecting part.
Further, a reset spring is sleeved on the fixed column and limited in the space formed by the two first connecting holes.
Further, the locking piece comprises a limiting sleeve, and a limiting spring and a limiting steel ball which are arranged in the limiting sleeve, wherein the limiting spring is limited between the top wall of the limiting sleeve and the limiting steel ball.
The hydraulic stretcher comprises a cylinder body, wherein a piston is arranged in the cylinder body, and the stretching nut is arranged on the piston.
Further, the lateral wall of cylinder body is connected with quick-operation joint, and the bottom of cylinder body is connected with the supporting sleeve, is equipped with the sealing member between cylinder body and the piston.
3. Advantageous effects
Compared with the prior art, the utility model has the beneficial effects that:
(1) The nut body comprises a first part and a second part, wherein the first part and the second part are connected through a fixed column, the first part slides back and forth along the fixed column, and the first part and the fixed column are locked or separated through a locking piece; when the locking piece is assembled, the first part drives the locking piece to synchronously move by applying opposite force to the first part and the second part, and when the locking piece moves to a locking groove on the fixed column, the locking piece and the locking piece are matched with each other to complete locking action; when the locking piece is detached, opposite forces are applied to the first part and the second part, the locking piece slides out of the locking groove along the chamfer angle of the locking groove, and the locking action between the locking piece and the locking groove is released; compared with the traditional stretching nut, when the stretching nut is connected with the screw rod, the stretching nut can be connected or detached from the screw rod after being rotated for a plurality of circles, and the axis between the stretching nut and the screw rod is always consistent in the rotating process; the stretching nut adopts a clamping type mounting mode, is simple and convenient to operate, and can greatly save the assembly time, thereby improving the assembly efficiency.
(2) According to the quick detachable stretching nut, the limiting part is arranged at one end of the fixing column, the connecting part is arranged at the other end of the fixing column, the limiting part is positioned outside the first mounting hole on the first part, the connecting part penetrates through the first mounting hole and extends to the second mounting hole to be connected with the inner threads of the second mounting hole, so that the first part and the second part are connected in series by the fixing column all the time while locking and separating actions are realized, and the falling phenomenon can not occur.
(3) The utility model relates to a quick detachable stretching nut, wherein the first mounting hole and the second mounting hole are stepped holes and comprise a first connecting hole and a second connecting hole which are connected with each other, and the diameter of the first connecting hole is larger than that of the second connecting hole; the reset spring on the fixed column is limited in the space formed by the two first connecting holes, so that the two parts of the nut body are damped during assembly and assisted during disassembly.
Drawings
FIG. 1 is a schematic view of a quick assembly disassembly drawing nut according to the present utility model;
FIG. 2 is a schematic view of the structure of the inside of the nut body according to the present utility model;
FIG. 3 is a schematic structural view of a fixing post according to the present utility model;
FIG. 4 is a cross-sectional view of the structure of the locking member of the present utility model;
FIG. 5 is a schematic view of a hydraulic tensioner according to the present utility model;
FIG. 6 is a cross-sectional view of a hydraulic tensioner of the present utility model;
in the figure: 1. a cylinder; 2. a piston;
3. a nut body; 31. a first portion; 32. a second portion; 33. a first mounting hole; 34. a second mounting hole; 341. a first connection hole; 342. a second connection hole; 343. a third connection hole;
4. fixing the column; 41. a limit part; 42. a connection part; 43. a locking groove; 44. a return spring;
5. a locking member; 51. a limit sleeve; 52. a limit spring; 53. limiting the steel balls;
6. a quick connector; 7. a seal; 8. and a supporting sleeve.
Detailed Description
The utility model is further described below in connection with specific embodiments.
Example 1
The quick detachable tension nut of the embodiment comprises a nut body 3, wherein the nut body 3 comprises a first part 31 and a second part 32 which can be mutually locked and separated. Wherein, the circular arc inner side walls of the first part 31 and the second part 32 are provided with internal threads (not shown in the figure); when the two parts are locked to each other, the internal thread of the first part 31 and the internal thread of the second part 32 together form an internal thread which mates with the external thread of the screw.
Referring to fig. 1, the first portion 31 and the second portion 32 are connected by the fixing posts 4. One end of the fixing post 4 passes through the first portion 31 and extends into the second portion 32 for connection. The first portion 31 can slide back and forth along the fixing post 4, and the first portion 31 and the fixing post 4 are locked or separated by the locking member 5.
As shown in fig. 2, the first portion 31 is provided with a first mounting hole 33 through which the fixing column 4 passes, and the second portion 32 is provided with a second mounting hole 34 through which the fixing column 4 is inserted; wherein the first mounting hole 33 is a through hole, and the second mounting hole 34 is a blind hole.
The first mounting hole 33 and the second mounting hole 34 are stepped holes, and include a first connecting hole 341 and a second connecting hole 342 that are connected to each other. Wherein, the diameter of the first connecting hole 341 is larger than the diameter of the second connecting hole 342.
The fixing column 4 is in clearance fit with the second connecting hole 342, the fixing column 4 can slide back and forth in the second connecting hole 342, and meanwhile, the second connecting hole 342 plays a certain radial limiting effect on the fixing column 4. In addition, the second mounting hole 34 further includes a third connecting hole 343 into which the connecting portion 42 of the fixing post 4 extends.
As shown in fig. 3, one end of the fixing post 4 is provided with a limiting portion 41 matched with the first mounting hole 33, and the other end is provided with a connecting portion 42 matched with the third connecting hole 343. The fixing column 4 is also provided with a locking groove 43 matched with the locking piece 5, and the locking groove 43 is arranged at a position close to the limiting part 41. Preferably, the locking groove 43 is an annular groove, and an arc chamfer is arranged between the annular groove and the peripheral wall of the fixed column 4, so as to facilitate the locking piece 5 to slide out of the locking groove 43.
When assembled, the connecting portion 42 of the fixing post 4 passes through the first mounting hole 33 and extends into the third connecting hole 343 to complete the connection between the fixing post 4 and the second portion 32. At this time, the limiting portion 41 of the fixing post 4 is located outside the second connecting hole 342 on the first portion 31, and a certain moving space is ensured between the first portion 31 and the second portion 32. In this design, the first part 31 and the second part 32 are locked and separated, and are always connected in series by the fixing column 4, so that the falling-off phenomenon is avoided.
In this embodiment, the limiting portion 41 includes a limiting ring and a hexagonal nut, where the limiting ring is used to stop the whole limiting portion 41 at the outer side of the second connecting hole 342, and the hexagonal nut is used to facilitate the rotation operation of the fixing post 4. The outer peripheral wall of the connecting portion 42 is provided with an external thread, and the third connecting hole 343 is provided with an internal thread (not shown) which are connected by threads.
Referring to fig. 1 and 2, the fixed column 4 is sleeved with a return spring 44, and the return spring 44 is limited in a space formed by two first connecting holes 341. By providing the return spring 44, the first portion 31 and the second portion 32 are made to have a damping feeling at the time of assembly and a booster feeling at the time of disassembly.
As shown in fig. 4, the locking member 5 is embedded in the first portion 31, and includes a stop collar 51, and a stop spring 52 and a stop steel ball 53 disposed in the stop collar 51. The limiting spring 52 is compressed and limited between the top wall of the limiting sleeve 51 and the limiting steel ball 53, and always provides elastic force for the limiting steel ball 53. The limit steel balls 53 are matched with the locking grooves 43 to lock or separate the fixed column 4.
In the quick detachable drawing nut of the embodiment, when the drawing nut is assembled (the first part 31 and the second part 32 are in a separated state), the drawing nut is sleeved on a screw rod to be pulled up; then, both hands press the nut body 3 inwards, so that the first part 31 drives the locking member 5 to move towards the second part 32; when the locking piece 5 moves to the locking groove 43, the limiting steel ball 53 slides into the locking groove 43; at this time, the limit spring 52 limits the partial area of the limit steel ball 53 to the locking groove 43 by its own elastic force, and the locking operation between the first portion 31 and the second portion 32 is completed.
When the locking groove 43 is detached, only opposite acting force is applied to the first part 31 and the second part 32, and the limiting steel balls 53 slide out of the locking groove 43 along the arc-shaped chamfer angles of the locking groove 43 under the action of external force, so that the separation work between the first part 31 and the second part 32 is completed.
Example 2
As shown in fig. 5, a hydraulic tensioner of the present embodiment includes a cylinder 1, a piston 2, and a quick-release tensioning nut as described in embodiment 1. Wherein, the piston 2 is arranged in the cylinder body 1, and the stretching nut is positioned at the upper part of the piston 2.
Referring to fig. 6, a quick connector 6 is connected to the side wall of the cylinder body 1, and oil is supplied to the cylinder through the quick connector 6. The bottom of the cylinder body 1 is connected with a support sleeve 8, and the support sleeve 8 is rotatably connected with the cylinder body 1, namely, the support sleeve 8 can rotate relative to the cylinder body 1 so as to facilitate position adjustment. A seal 7 is provided between the cylinder 1 and the piston 2.
According to the hydraulic stretcher, through the arrangement of the quick-disassembly stretching nut, quick disassembly and assembly between the stretching nut and the screw rod can be realized, so that the assembly time between the nut and the screw rod is greatly shortened, and the assembly efficiency is improved. The bolt is particularly suitable for the disassembly and assembly operations of bolts in special environments such as underwater and the like.
The utility model and its embodiments have been described above by way of illustration and not limitation, and the utility model is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present utility model.
Claims (9)
1. The utility model provides a quick assembly disassembly formula stretch nut, includes nut body (3), its characterized in that: the nut body (3) comprises a first part (31) and a second part (32), and the two parts are connected through a fixing column (4); wherein one end of the fixing column (4) passes through the first part (31) and extends into the second part (32); the first part (31) slides back and forth along the fixed column (4), and the first part (31) and the fixed column (4) are locked or separated through the locking piece (5).
2. The quick release draw nut of claim 1, wherein: the first part (31) is provided with a first mounting hole (33) for the fixed column (4) to pass through, and the second part (32) is provided with a second mounting hole (34) for the fixed column (4) to insert into; wherein the first mounting hole (33) is a through hole, and the second mounting hole (34) is a blind hole.
3. A quick release draw nut as defined in claim 2, wherein: one end of the fixed column (4) is provided with a limiting part (41) matched with the first mounting hole (33), the other end of the fixed column is provided with a connecting part (42) matched with the second mounting hole (34), and the fixed column (4) is also provided with a locking groove (43) matched with the locking piece (5).
4. A quick release draw nut as defined in claim 3, wherein: the first mounting hole (33) and the second mounting hole (34) are step holes and comprise a first connecting hole (341) and a second connecting hole (342) which are connected with each other, wherein the diameter of the first connecting hole (341) is larger than that of the second connecting hole (342).
5. The quick release draw nut of claim 4, wherein: the second mounting hole (34) further comprises a third connecting hole (343), and the third connecting hole (343) is in threaded fit with the connecting part (42).
6. The quick release draw nut of claim 4, wherein: the fixed column (4) is sleeved with a reset spring (44), and the reset spring (44) is limited in a space formed by the two first connecting holes (341).
7. A quick release draw nut according to any one of claims 1 to 6, wherein: the locking piece (5) comprises a limit sleeve (51), and a limit spring (52) and a limit steel ball (53) which are arranged in the limit sleeve (51), wherein the limit spring (52) is limited between the top wall of the limit sleeve (51) and the limit steel ball (53).
8. The utility model provides a hydraulic stretcher, includes cylinder body (1), cylinder body (1) in be equipped with piston (2), its characterized in that: the piston (2) is provided with the stretching nut of claim 7.
9. A hydraulic tensioner according to claim 8, wherein: the side wall of the cylinder body (1) is connected with a quick connector (6), the bottom of the cylinder body (1) is connected with a supporting sleeve (8), and a sealing piece (7) is arranged between the cylinder body (1) and the piston (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321349503.0U CN219865833U (en) | 2023-05-30 | 2023-05-30 | Quick assembly disassembly formula stretching nut and hydraulic stretching ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321349503.0U CN219865833U (en) | 2023-05-30 | 2023-05-30 | Quick assembly disassembly formula stretching nut and hydraulic stretching ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219865833U true CN219865833U (en) | 2023-10-20 |
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ID=88369554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321349503.0U Active CN219865833U (en) | 2023-05-30 | 2023-05-30 | Quick assembly disassembly formula stretching nut and hydraulic stretching ware |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219865833U (en) |
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2023
- 2023-05-30 CN CN202321349503.0U patent/CN219865833U/en active Active
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