CN220581671U - Double locking structure of push-pull rod - Google Patents
Double locking structure of push-pull rod Download PDFInfo
- Publication number
- CN220581671U CN220581671U CN202322192703.6U CN202322192703U CN220581671U CN 220581671 U CN220581671 U CN 220581671U CN 202322192703 U CN202322192703 U CN 202322192703U CN 220581671 U CN220581671 U CN 220581671U
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- China
- Prior art keywords
- locking
- push
- radial
- pull rod
- axial
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Links
- 238000007906 compression Methods 0.000 claims abstract description 13
- 230000006835 compression Effects 0.000 claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052802 copper Inorganic materials 0.000 claims abstract description 7
- 239000010949 copper Substances 0.000 claims abstract description 7
- 230000009977 dual effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a double locking structure of a push-pull rod, which is used for locking the push-pull rod on a piston rod and comprises the following steps: the device comprises a locking large nut, a radial locking screw, an axial locking screw and a compression block; the axial line of the locking large nut is provided with a first axial threaded through hole which is in threaded connection with the piston rod, the edge of the end face of the locking large nut is provided with a plurality of second axial threaded through holes which are symmetrically arranged, and the locking large nut is provided with a plurality of radial threaded through holes; the radial locking screw is arranged in the second axial threaded through hole, and the end face of the radial locking screw is abutted against the end face of the push-pull rod; the compressing block is placed in the radial threaded through hole, and the radial locking screw rod compresses tightly the compressing block on the piston rod. According to the double locking structure of the push-pull rod, friction force generated by axial pre-tightening is generated by virtue of a plurality of axial locking screws, friction force generated by tightening of radial locking nuts is generated, so that friction force generated by a copper block and a piston rod is ensured not to rotate between the push-pull rod and the piston rod, and the friction force generated by the axial direction and the radial direction of the double locking structure plays a double locking role.
Description
Technical Field
The utility model relates to the technical field of servomotors, in particular to a push-pull rod double locking structure.
Background
The push-pull rod locking structure on the market at present is that two long screw rods lock the push-pull rod on a piston rod, and friction force generated by the two screw rods is insufficient to lock the push-pull rod because pretightening force given by the two screw rods is limited in the use process, so that the push-pull rod does not rotate. The rotation of the push-pull rod can affect the stable operation of the unit. It is therefore necessary to design a push-pull rod locking structure that effectively prevents the push-pull rod from rotating.
Disclosure of Invention
The utility model provides a double locking structure of a push-pull rod, which aims to solve the technical problems in the prior art.
The technical scheme adopted by the utility model is as follows: there is provided a push-pull rod double locking structure for locking a push-pull rod on a piston rod, comprising: the device comprises a locking large nut, a radial locking screw, an axial locking screw and a compression block; the axial line of the locking large nut is provided with a first axial threaded through hole which is in threaded connection with the piston rod, the edge of the end face of the locking large nut is provided with a plurality of second axial threaded through holes which are symmetrically arranged, and the locking large nut is provided with a plurality of radial threaded through holes; the radial locking screw is arranged in the second axial threaded through hole, and the end face of the radial locking screw is abutted against the end face of the push-pull rod; the compressing block is placed in the radial threaded through hole, and the radial locking screw rod compresses the compressing block on the piston rod.
Further, the device also comprises a first screw rod, wherein the first screw rod is radially arranged between the push-pull rod and the piston rod in a penetrating way.
Further, the compaction block is made of copper.
Further, the end face, which is contacted with the piston rod, of the compression block is provided with a thread groove which is matched with the surface of the piston rod.
Further, the axial locking screw has 12, and is provided with the serial number on it.
Further, the number of the radial locking screws is 4, and the radial locking screws are symmetrically connected to the locking large nut in the circumferential direction.
The beneficial effects of the utility model are as follows: according to the double locking structure of the push-pull rod, friction force generated by axial pre-tightening is generated by virtue of the plurality of axial locking screws, friction force generated by tightening the radial locking nuts is generated by virtue of the copper block and the piston rod, so that the push-pull rod and the piston rod are prevented from rotating, the friction force generated by the axial direction and the radial direction of the double locking structure plays a double locking role, and the push-pull rod and the piston rod can be effectively prevented from rotating.
Drawings
FIG. 1 is a schematic illustration of a dual lock structure of a push-pull rod according to the present disclosure;
FIG. 2 is a schematic view of the radial lock screw, axial lock screw and compression block of the present utility model mounted on a lock nut;
fig. 3 is a cross-sectional view of the radial lock screw, axial lock screw and compression block of the present disclosure mounted on a lock nut.
Reference numerals: the device comprises a push-pull rod, a first screw rod, a large 3-locking nut, a first axial threaded through hole, a second axial threaded through hole, a radial locking screw rod, a 5-piston rod, a 6-axial locking screw rod and a 7-compression block.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail with reference to the accompanying drawings, but embodiments of the present utility model are not limited thereto. It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Example 1:
referring to fig. 1-3, the present embodiment discloses a push-pull rod double locking structure for locking a push-pull rod 1 on a piston rod 5, the push-pull rod double locking structure includes: the large locking nut 3, the radial locking screw 4, the axial locking screw 6 and the compression block 7; a first axial threaded through hole 31 for being in threaded connection with the piston rod 5 is formed in the axis of the locking large nut 3, a plurality of second axial threaded through holes 32 which are symmetrically arranged are formed in the edge of the end face of the locking large nut 3, and a plurality of radial threaded through holes 33 are formed in the locking large nut 3; the radial locking screw 4 is arranged in the second axial threaded through hole 32, and the end surface of the radial locking screw is abutted against the end surface of the push-pull rod 1; the compression block 7 is placed in the radial threaded through hole 33, and the radial locking screw 4 compresses the compression block 7 on the piston rod 5.
Specifically, two ends of the axis of the large locking nut 3 are two end faces of the large locking nut 3, and the radial threaded through hole 33 is arranged at the circumferential side wall between the two end faces.
Further, the double locking structure of the push-pull rod further comprises a first screw rod 2, wherein the first screw rod 2 is radially arranged between the push-pull rod 1 and the piston rod 5 in a penetrating mode, and further rotation between the push-pull rod 1 and the piston rod 5 is prevented.
Preferably, the compacting block 7 is made of copper, and the copper is moderate in hardness, so that certain wear resistance can be ensured, and damage to threads on the surface of the piston rod 5 due to too high hardness can be avoided. The end surface of the compressing block 7, which is contacted with the piston rod 5, is also provided with a thread groove which is matched with the surface of the piston rod 5, so that the abrasion of the thread on the surface of the piston rod is reduced as much as possible.
Specifically, the number of the axial locking screws 6 is 12, and the number is arranged on the axial locking screws. The installation is performed sequentially and diagonal installation is required, that is, no. 1 and No. 2 are diagonal and No. 3 and No. 4 are diagonal.
Specifically, the number of the radial locking screws 4 is 4, and the radial locking screws are symmetrically connected to the locking large nut 3 in the circumferential direction.
The working principle of the push-pull rod double locking structure of the embodiment is as follows: during installation, the locking large nut is firstly installed on the piston rod 5, then the push-pull rod 1 is installed, the axial locking screw rod 6 is screwed down in sequence, the radial locking screw rod 4 and the compression block 7 are installed in the radial threaded through hole 33, and the first screw rod 2 is installed between the push-pull rod 1 and the piston rod 5. The friction force generated by the axial pre-tightening of 12 axial locking screws 6 and the friction force generated by the radial locking nuts to ensure that the friction force generated by the copper block and the piston rod 5 does not rotate between the push-pull rod 1 and the piston rod 5 can play a double locking role.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be appreciated by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (6)
1. A push-pull rod double locking structure for locking a push-pull rod on a piston rod, comprising: the device comprises a locking large nut, a radial locking screw, an axial locking screw and a compression block; the axial line of the locking large nut is provided with a first axial threaded through hole which is in threaded connection with the piston rod, the edge of the end face of the locking large nut is provided with a plurality of second axial threaded through holes which are symmetrically arranged, and the locking large nut is provided with a plurality of radial threaded through holes; the radial locking screw is arranged in the second axial threaded through hole, and the end face of the radial locking screw is abutted against the end face of the push-pull rod; the compressing block is placed in the radial threaded through hole, and the radial locking screw rod compresses the compressing block on the piston rod.
2. The dual lock structure of a push-pull rod according to claim 1, further comprising a first screw disposed radially therethrough between the push-pull rod and the piston rod.
3. The push-pull rod double locking structure according to claim 1, wherein the compression block is made of copper.
4. A push-pull rod double locking structure according to claim 1 or 3, wherein the end surface of the compression block, which is contacted with the piston rod, is provided with a thread groove which is matched with the surface of the piston rod.
5. The push-pull rod double locking structure according to claim 1, wherein the axial locking screws have 12 numbers and are provided thereon.
6. The double locking structure of a push-pull rod according to claim 1, wherein the number of the radial locking screws is 4, and the radial locking screws are symmetrically connected to the locking large nut in the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322192703.6U CN220581671U (en) | 2023-08-15 | 2023-08-15 | Double locking structure of push-pull rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322192703.6U CN220581671U (en) | 2023-08-15 | 2023-08-15 | Double locking structure of push-pull rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220581671U true CN220581671U (en) | 2024-03-12 |
Family
ID=90116175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322192703.6U Active CN220581671U (en) | 2023-08-15 | 2023-08-15 | Double locking structure of push-pull rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220581671U (en) |
-
2023
- 2023-08-15 CN CN202322192703.6U patent/CN220581671U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |