CN219733859U - Anti-drop round pin axle - Google Patents
Anti-drop round pin axle Download PDFInfo
- Publication number
- CN219733859U CN219733859U CN202321318937.4U CN202321318937U CN219733859U CN 219733859 U CN219733859 U CN 219733859U CN 202321318937 U CN202321318937 U CN 202321318937U CN 219733859 U CN219733859 U CN 219733859U
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- CN
- China
- Prior art keywords
- limiting block
- fixedly connected
- internal thread
- limiting
- thrust bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000007789 sealing Methods 0.000 claims description 10
- 239000010687 lubricating oil Substances 0.000 abstract description 9
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses an anti-falling pin shaft which comprises a shaft body, wherein the left end of the shaft body is fixedly connected with a first limiting block, the right side of the first limiting block is penetrated through and fixedly connected with a second plane thrust bearing, the middle part of the right end of the shaft body is fixedly connected with an internal thread column, the right side of the internal thread column is provided with a second limiting block, the internal thread column penetrates through the second limiting block, the left side of the second limiting block penetrates through and is fixedly connected with a first plane thrust bearing, the internal thread column penetrates through the first plane thrust bearing, the middle part of the right end of the internal thread column penetrates through and is in threaded connection with a first threaded rod, and the first threaded rod is fixedly connected with the second limiting block. According to the utility model, lubricating oil can be injected into the limiting rod through the hole at the left end of the limiting rod and stored, and along with the use of the pin shaft, the lubricating oil slowly flows out through the small through hole and lubricates the contact part of the connecting structure and the shaft body, so that the friction force is reduced, and the abrasion and friction noise are reduced.
Description
Technical Field
The utility model relates to the technical field of pin shafts, in particular to an anti-falling pin shaft.
Background
The pin shaft is a standardized fastener, can be fixedly connected in a static state and can also relatively move with a connected piece, and is mainly used for the hinge joint of two parts to form hinge connection. The pin shaft is usually locked by a cotter pin, so that the pin shaft is reliable in work and convenient to detach.
The existing pin shaft is generally provided with a limiting block with larger size at one end and a clamp spring at the other end, when the pin shaft is used for connecting two parts, the limiting block and the clamp spring are easy to be in direct contact with the parts, when the two parts rotate, the clamp spring and the limiting block are easy to rub with the limiting block and the clamp spring, along with the fact that lubricating oil on the pin shaft is less and less, the friction between the clamp spring and the limiting block and the parts is more and more serious, friction loss is increased, resistance of relative rotation of the two parts is increased, noise generated when the two parts rotate is increased, and meanwhile, the existing clamp spring is generally exposed to the external environment and is easy to erode.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides an anti-falling pin shaft.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides an anti-drop round pin axle, includes the axis body, the axis body left end fixedly connected with first restriction piece, first restriction piece right side runs through and fixedly connected with second planar thrust bearing, axis body right side middle part fixedly connected with internal thread post, internal thread post right side is provided with second restriction piece and internal thread post runs through second restriction piece, second restriction piece left side runs through and fixedly connected with first planar thrust bearing and internal thread post runs through first planar thrust bearing, internal thread post right-hand member middle part runs through and threaded connection has first threaded rod and second restriction piece fixed connection, first threaded rod left end fixedly connected with restriction pole and restriction pole runs through internal thread post, axis body and first restriction piece, first restriction piece left side middle part runs through and is provided with jump ring and restriction pole cooperation, first restriction piece left side is provided with the apron, second threaded rod and second threaded rod of apron right side middle part fixedly connected with runs through and with restriction pole threaded connection.
For further description of the above technical solution:
the right side of the first limiting block is provided with a first wear pad which is fixedly connected with the second plane thrust bearing.
For further description of the above technical solution:
the left side of the second limiting block is provided with a second wear pad which is fixedly connected with the first plane thrust bearing.
For further description of the above technical solution:
the outer wall of the limiting rod, which is close to the left end, is provided with a clamping groove, and the clamping groove corresponds to the clamping spring.
For further description of the above technical solution:
the right side of the cover plate penetrates through and is fixedly connected with a sealing gasket, and the sealing gasket is tightly attached to the outer wall of the first limiting block.
For further description of the above technical solution:
the middle part of the left side of the first limiting block penetrates through and is provided with a mounting groove which corresponds to the clamp spring.
For further description of the above technical solution:
and chamfer angles are arranged at one sides of the two ends of the notch of the second limiting block, which are close to the first limiting block.
For further description of the above technical solution:
the shaft body and the middle part of the top of the limiting rod are penetrated and provided with small through holes which are communicated.
The utility model has the following beneficial effects:
1. according to the utility model, the penetrating end of the pin shaft is limited by the second limiting block, and then the clamping spring is matched with the clamping groove in the limiting rod, so that the clamping spring not only limits the limiting rod, the first threaded rod and the second limiting block to move rightwards, but also avoids direct contact with the connecting structure, avoids direct friction between the clamping spring and the connecting structure, and reduces abrasion of the clamping spring.
2. According to the utility model, the cover plate is attached to the left side of the clamp spring through the cooperation of the second threaded rod and the clamping groove, so that the clamp spring is protected, and the tightness between the cover plate and the first limiting block is increased through the sealing gasket, so that the clamp spring is not easy to erode in the environment.
3. According to the utility model, the first wear-resisting piece and the second wear-resisting piece are respectively arranged on the adjacent sides of the first limiting piece and the second limiting piece, so that the second limiting piece is not in direct contact with the connecting structure, friction is avoided, when the first wear-resisting piece is worn, only the first wear-resisting piece is required to be replaced, the limiting piece is prevented from being worn, and the service life of the whole pin shaft is prolonged.
4. According to the utility model, the second plane thrust bearing and the first plane thrust bearing are respectively arranged in the first limiting block and the second limiting block, so that when the connecting structure extrudes the two ends of the pin shaft, the two structures can still rotate easily, and friction force and noise generated by friction are reduced.
5. According to the utility model, lubricating oil can be injected into the limiting rod through the hole at the left end of the limiting rod and stored, and along with the use of the pin shaft, the lubricating oil slowly flows out through the small through hole and lubricates the contact part of the connecting structure and the shaft body, so that the friction force is reduced, and the abrasion and friction noise are reduced.
Drawings
Fig. 1 is a schematic diagram of an anti-falling pin provided by the utility model;
FIG. 2 is an exploded left side view of an anti-drop pin according to the present utility model;
FIG. 3 is an exploded right side view of an anti-drop pin according to the present utility model;
fig. 4 is a schematic diagram of a snap spring of an anti-falling pin shaft.
Legend description:
1. a cover plate; 2. a first limiting block; 3. a first wear pad; 4. a small through hole; 5. a shaft body; 6. a second wear pad; 7. a second limiting block; 8. an internal threaded post; 9. a first planar thrust bearing; 10. a first threaded rod; 11. a restraining bar; 12. a second planar thrust bearing; 13. a sealing gasket; 14. a second threaded rod; 15. clamping springs; 16. a clamping groove; 17. a mounting groove; 18. chamfering.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-4, one embodiment provided by the present utility model is: an anti-falling pin comprises a shaft body 5, a first limiting block 2 is fixedly connected to the left end of the shaft body 5, a second plane thrust bearing 12 is fixedly connected to the right side of the first limiting block 2, the shaft body 5 is firstly connected with two structures in a penetrating way through the shaft body 5, the shaft body 5 can be connected with and limited by the two structures, in order to prevent the shaft body 5 from being separated from the two structures, a limiting rod 11 penetrates through an internal thread column 8 and the shaft body 5, an internal thread column 8 is fixedly connected to the middle part of the right end of the shaft body 5, a second limiting block 7 is arranged on the right side of the internal thread column 8, the internal thread column 8 penetrates through the second limiting block 7, then a first threaded rod 10 and the second limiting block 7 are fixed to the internal thread column 8 in a threaded way, the shaft body 5 and the second limiting block 7 form a whole, the size of the two ends of the shaft body 5 is larger than that of the shaft body 5, the shaft body 5 cannot be separated from the two (connected) structures, the left side of the second limiting block 7 is penetrated and fixedly connected with a first plane thrust bearing 9, the internal thread column 8 penetrates through the first plane thrust bearing 9, then the clamping spring 15 is matched with a clamping groove 16 in the limiting rod 11, so that the clamping spring 15 not only limits the limiting rod 11, the first threaded rod 10 and the second limiting block 7 to move rightwards, but also avoids direct contact with a connecting structure, the clamping spring 15 is prevented from directly rubbing the connecting structure, the middle part of the right end of the internal thread column 8 is penetrated and in threaded connection with the first threaded rod 10 and fixedly connected with the second limiting block 7, the left end of the first threaded rod 10 is fixedly connected with the limiting rod 11, the limiting rod 11 penetrates through the internal thread column 8, the shaft body 5 and the first limiting block 2, then the cover plate 1 is jointed with the left side of the clamping spring 15 through the matching of the second threaded rod 14 and the clamping groove 16, and the protection is formed on the clamping spring 15, the middle part of the left side of the first limiting block 2 is penetrated and provided with a clamp spring 15, the clamp spring 15 is matched with the limiting rod 11, the left side of the first limiting block 2 is provided with a cover plate 1, the tightness between the cover plate 1 and the first limiting block 2 is increased through a sealing gasket 13, the clamp spring 15 is not easy to erode by the environment, the middle part of the right side of the cover plate 1 is fixedly connected with a second threaded rod 14, and the second threaded rod 14 penetrates and is in threaded connection with the limiting rod 11.
The right side of the first limiting block 2 is provided with a first wear-resisting plate 3, the first wear-resisting plate 3 is fixedly connected with a second plane thrust bearing 12, through arranging the first wear-resisting plate 3 and the second wear-resisting plate 6 on the adjacent sides of the first limiting block 2 and the second limiting block 7 respectively, the second limiting block 7 is not in direct contact with a connecting structure, friction is avoided, the left side of the second limiting block 7 is provided with the second wear-resisting plate 6, the second wear-resisting plate 6 is fixedly connected with the first plane thrust bearing 9, after the first wear-resisting plate 3 is worn, only the first wear-resisting plate 3 is required to be replaced, the service life of the whole pin shaft is prolonged, the outer wall of the limiting rod 11 close to the left end is provided with a clamping groove 16, the clamping groove 16 corresponds to a clamp spring 15, the right side of the cover plate 1 is penetrated and fixedly connected with a sealing pad 13, the sealing pad 13 is tightly attached to the outer wall of the first limiting block 2, the first limiting block 2 and the second limiting block 7 are respectively provided with the second plane thrust bearing 12 and the first plane thrust bearing 9, so that when the connecting structure extrudes two ends of the pin shaft, the two structures can still rotate easily, friction force and noise generated by friction are reduced, the middle part of the left side of the first limiting block 2 is penetrated and provided with the mounting groove 17, the mounting groove 17 corresponds to the clamp spring 15, one side, close to the first limiting block 2, of the two ends of the notch of the second limiting block 7 is provided with the chamfer 18, lubricating oil can be injected into the limiting rod 11 through the hole at the left end of the limiting rod 11 and stored, and along with the use of the pin shaft, the lubricating oil slowly flows out through the small through holes 4 and lubricates the contact part of the connecting structure and the shaft body 5, so that friction force is reduced, the shaft body 5 and the middle part of the top of the limiting rod 11 are penetrated and are provided with the small through holes 4, and the two small through holes 4 are communicated.
Working principle: firstly, by penetrating and connecting the shaft body 5 with two structures, the shaft body 5 can be connected with and limit the two structures, in order to prevent the shaft body 5 from being separated from the two structures, the limiting rod 11 penetrates through the internal thread column 8 and the shaft body 5, then the first threaded rod 10 and the second limiting block 7 are fixed on the internal thread column 8 in a threaded connection mode, the shaft body 5 and the second limiting block 7 form a whole, the two ends of the shaft body 5 are larger than the shaft body 5 in size, the shaft body 5 cannot separate from the two (connected) structures, then the clamping spring 15 is matched with the clamping groove 16 in the limiting rod 11 through the clamping spring 15, so that the limiting rod 11, the first threaded rod 10 and the second limiting block 7 are prevented from being directly contacted with the connecting structure, the clamping spring 15 is prevented from directly rubbing with the connecting structure, then the clamping spring 15 is matched with the clamping groove 16 through the second threaded rod 14, the cover plate 1 is attached to the left side of the clamp spring 15, so that the clamp spring 15 is protected, the tightness between the cover plate 1 and the first limiting block 2 is increased through the sealing gasket 13, the clamp spring 15 is not easy to erode the environment, the first wear-resisting plate 3 and the second wear-resisting plate 6 are arranged on the adjacent sides of the first limiting block 2 and the second limiting block 7 respectively, the second limiting block 7 is not in direct contact with a connecting structure, friction is avoided, when the first wear-resisting plate 3 is worn, only the first wear-resisting plate 3 needs to be replaced, the service life of the whole pin shaft is prolonged, and the second planar thrust bearing 12 and the first planar thrust bearing 9 are respectively arranged in the first limiting block 2 and the second limiting block 7, so that when the connecting structure extrudes the two ends of the pin shaft, the two structures can still be easily rotated, friction force and noise generated by friction are reduced, lubricating oil can be injected into the limiting rod 11 through the hole at the left end of the limiting rod 11 and stored, and along with the use of the pin shaft, the lubricating oil slowly flows out through the small through hole 4 and lubricates the contact part of the connecting structure and the shaft body 5, so that friction force is reduced.
Finally, it should be noted that: the foregoing description of the preferred embodiments of the present utility model is not intended to be limiting, but rather, it will be apparent to those skilled in the art that the foregoing description of the preferred embodiments of the present utility model can be modified or equivalents can be substituted for some of the features thereof, and any modification, equivalent substitution, improvement or the like that is within the spirit and principles of the present utility model should be included in the scope of the present utility model.
Claims (8)
1. The utility model provides an anti-drop round pin axle, includes axis body (5), its characterized in that: the left end fixedly connected with first limiting block (2) of axis body (5), first limiting block (2) right side runs through and fixedly connected with second plane thrust bearing (12), axis body (5) right-hand member middle part fixedly connected with internal thread post (8), internal thread post (8) right side is provided with second limiting block (7) and internal thread post (8) runs through second limiting block (7), second limiting block (7) left side runs through and fixedly connected with first plane thrust bearing (9) and internal thread post (8) runs through first plane thrust bearing (9), internal thread post (8) right-hand member middle part runs through and threaded connection has first threaded rod (10) and second limiting block (7) fixed connection, first threaded rod (10) left end fixedly connected with limiting rod (11) and limiting rod (11) run through internal thread post (8), axis body (5) and first limiting block (2), first limiting block (2) left side and run through first plane thrust bearing (15) and limit clip spring (15) and limit block (15) limit and left side limit plate (15), the middle part of the right side of the cover plate (1) is fixedly connected with a second threaded rod (14), and the second threaded rod (14) penetrates through and is in threaded connection with the limiting rod (11).
2. The anti-drop pin as claimed in claim 1, wherein: the right side of the first limiting block (2) is provided with a first wear pad (3), and the first wear pad (3) is fixedly connected with a second plane thrust bearing (12).
3. The anti-drop pin as claimed in claim 1, wherein: the left side of the second limiting block (7) is provided with a second wear pad (6), and the second wear pad (6) is fixedly connected with the first plane thrust bearing (9).
4. The anti-drop pin as claimed in claim 1, wherein: the outer wall of the limiting rod (11) close to the left end is provided with a clamping groove (16), and the clamping groove (16) corresponds to the clamping spring (15).
5. The anti-drop pin as claimed in claim 1, wherein: the right side of the cover plate (1) penetrates through and is fixedly connected with a sealing gasket (13), and the sealing gasket (13) is tightly attached to the outer wall of the first limiting block (2).
6. The anti-drop pin as claimed in claim 1, wherein: the middle part of the left side of the first limiting block (2) is penetrated and provided with a mounting groove (17), and the mounting groove (17) corresponds to the clamp spring (15).
7. The anti-drop pin as claimed in claim 1, wherein: and chamfer angles (18) are arranged at one sides of the two ends of the notch of the second limiting block (7) close to the first limiting block (2).
8. The anti-drop pin as claimed in claim 1, wherein: the shaft body (5) and the middle part of the top of the limiting rod (11) are penetrated and provided with small through holes (4) and the two small through holes (4) are communicated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321318937.4U CN219733859U (en) | 2023-05-29 | 2023-05-29 | Anti-drop round pin axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321318937.4U CN219733859U (en) | 2023-05-29 | 2023-05-29 | Anti-drop round pin axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219733859U true CN219733859U (en) | 2023-09-22 |
Family
ID=88026454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321318937.4U Active CN219733859U (en) | 2023-05-29 | 2023-05-29 | Anti-drop round pin axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219733859U (en) |
-
2023
- 2023-05-29 CN CN202321318937.4U patent/CN219733859U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |