CN216812402U - Novel connecting pin shaft device - Google Patents
Novel connecting pin shaft device Download PDFInfo
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- CN216812402U CN216812402U CN202220378263.6U CN202220378263U CN216812402U CN 216812402 U CN216812402 U CN 216812402U CN 202220378263 U CN202220378263 U CN 202220378263U CN 216812402 U CN216812402 U CN 216812402U
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- pin shaft
- shoulder
- pin
- shaft
- hole
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Abstract
The utility model discloses a novel connecting pin shaft device, which comprises a first component, a second component and a first pin shaft with a shoulder, and is characterized in that: the first shoulder pin shaft is provided with a pin hole on the outer circular surface of one end far away from the shaft shoulder, the diameter of the pin hole is matched with the outer diameter of the second shoulder pin shaft, the second shoulder pin shaft is inserted into the pin hole and used for preventing the first shoulder pin shaft from being separated from the first pin shaft hole and the second pin shaft hole, and one end of the second shoulder pin shaft far away from the shaft shoulder is provided with an anti-separation device; the outer diameter of the second shoulder pin shaft is larger than 16% of the outer diameter of the first shoulder pin shaft, and the second shoulder pin shaft is made of cold heading steel. According to the utility model, the second shoulder pin shaft is arranged to replace the cotter pin, the strength of the second shoulder pin shaft is higher than that of the cotter pin, and the second shoulder pin shaft is made of cold-heading steel material and is not easy to cut off, so that the problems that the first shoulder pin shaft falls off and the tower crane has safety risk due to the fact that the cotter pin is easy to cut off in the prior art can be effectively solved.
Description
Technical Field
The utility model relates to the technical field of tower cranes, in particular to a novel connecting pin shaft device.
Background
In the construction industry, a tower crane is a necessary construction equipment, and the tower crane is assembled by a plurality of components to meet various requirements of construction operation. Most of components of the tower crane are assembled by pin shafts, the traditional pin shaft form is shown in the attached drawing 1 and comprises a first lug plate, a second lug plate, a pin shaft and a split pin, and the split pin is easy to shear under stress and has the risk of falling of the pin shaft, so that the tower crane has safety risk.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems that in the prior art, a split pin in the existing connecting pin shaft device is easy to be stressed and cut off, and a pin shaft falls off to cause a safety risk of a tower crane, the utility model provides a novel connecting pin shaft device.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides a novel connecting pin axle device, includes first component, second component and first shoulder round pin axle, be equipped with first otic placode on the first component, be equipped with the second otic placode on the second component, first otic placode and second otic placode parallel arrangement, be equipped with first round pin shaft hole on the first otic placode, correspond the position with first round pin shaft hole on the second otic placode and be equipped with second round pin shaft hole, first shoulder round pin shaft passes first round pin shaft hole and second round pin shaft hole, is connected first otic placode and second otic placode to be connected first component and second component, make first component, second component all form rotatable coupling, its characterized in that with first shoulder round pin shaft: the first shoulder pin shaft is provided with a pin hole on the outer circular surface of one end far away from the shaft shoulder, the diameter of the pin hole is matched with the outer diameter of the second shoulder pin shaft, the second shoulder pin shaft is inserted into the pin hole and used for preventing the first shoulder pin shaft from being separated from the first pin shaft hole and the second pin shaft hole, and the end far away from the shaft shoulder of the second shoulder pin shaft is provided with an anti-separation device used for preventing the second shoulder pin shaft from being separated from the pin hole; the outer diameter of the second shoulder pin shaft is larger than 16% of the outer diameter of the first shoulder pin shaft, and the second shoulder pin shaft is made of cold heading steel.
Further, when the outer diameter of the first shoulder pin shaft is phi 40-phi 54mm, the outer diameter of the cylindrical pin of the second shoulder pin shaft is phi 12 mm; when the outer diameter of the first shoulder pin shaft is phi 55-phi 60mm, the outer diameter of the cylindrical pin of the second shoulder pin shaft is phi 14 mm; and when the outer diameter of the first shoulder pin shaft is phi 61-phi 110mm, the outer diameter of the cylindrical pin of the second shoulder pin shaft is phi 18 mm.
Furthermore, the second shoulder pin shaft adopts a B-shaped pin shaft in GB/T882-2008 standard, the lower end of the B-shaped pin shaft is provided with a split pin hole, the anti-falling device is a split pin, and the split pin is inserted into the split pin hole and can prevent the second shoulder pin shaft from falling out of the pin hole.
Further, be equipped with 1 ~ 3 annular grooves on the second shoulder pin epaxial remote shaft shoulder one end excircle facial make-up, the anticreep device is established to the jump ring, all be equipped with the jump ring in the annular groove, can prevent that second shoulder pin from deviating from in the pinhole.
Furthermore, the outer circular surface of one end of the far shaft shoulder on the second shoulder pin shaft is provided with an external thread, the anti-falling device is set into 1-2 nuts, the nut is sleeved on the external thread of the shaft end of the second shoulder pin shaft and is in threaded connection with the second shoulder pin shaft, and the second shoulder pin shaft can be prevented from falling out of the pin hole.
Compared with the prior art, the utility model has the following beneficial effects: 1) the second shoulder pin shaft is arranged to replace the cotter pin, the strength of the second shoulder pin shaft is higher than that of the cotter pin, the second shoulder pin shaft is made of cold heading steel materials and is not easy to shear, and the problems that the first shoulder pin shaft falls off and the safety risk occurs to the tower crane due to the fact that the cotter pin is easy to shear in the prior art can be effectively solved; 2) the anti-falling device is arranged on the second shoulder pin shaft, so that the second shoulder pin shaft can be effectively prevented from falling out of the pin hole, and the safety and stability of the connecting pin shaft are improved.
Drawings
FIG. 1 is a schematic structural view of a conventional connecting pin device;
FIG. 2 is a schematic structural diagram of an embodiment of the present invention;
FIG. 3 is a schematic structural diagram according to a second embodiment of the present invention;
FIG. 4 is a schematic diagram of a third structure according to an embodiment of the present invention.
In the figure: 1. the first component, 2, the second component, 3, the first otic placode, 301, the first round pin shaft hole, 4, the second otic placode, 401, the second round pin shaft hole, 5, the first shoulder round pin axle, 501, the pinhole, 6, the second shoulder round pin axle, 601, split pin hole, 602, ring groove, 603, external screw thread, 7, split pin, 8, nut, 9, jump ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
As shown in fig. 2, an embodiment of the present invention is a connecting pin device between two adjacent arm sections of a tower crane jib, including a first member 1, a second member 2, a first shouldered pin 5 and a second shouldered pin 6, wherein the first member 1 is provided with two first ear plates 3, the second member 2 is provided with two second ear plates 4, the first ear plates 3 and the second ear plates 4 are arranged in parallel, the two second ear plates 4 are inserted between the two first ear plates 3, the first ear plates 3 are provided with first pin hole 301, the second ear plates 4 are provided with second pin hole 401 corresponding to the first pin hole 301, the outer diameter of the first shouldered pin 5 is 40mm, the first shouldered pin 5 passes through the first pin hole 301 and the second pin hole 401, the two first ear plates 3 and the two second ear plates 4 are connected, thereby connecting the first member 1 with the second member 2, and enabling the first member 1 and the second member 2 to be rotatably connected with the first shouldered pin 5, a pin hole 501 is formed in the outer circular surface of one end, far away from the shaft shoulder, of the first shoulder pin shaft 5, the aperture of the pin hole 501 is matched with the outer diameter of the second shoulder pin shaft 6, the second shoulder pin shaft 5 is inserted into the pin hole 501 and used for preventing the first shoulder pin shaft 5 from being separated from the first pin shaft hole 301 and the second pin shaft hole 401, and an anti-separation device is arranged at one end, far away from the shaft shoulder, of the second shoulder pin shaft 6 and used for preventing the second shoulder pin shaft 6 from being separated from the pin hole 501; the outer diameter of the second shoulder pin shaft 6 is larger than 16% of the outer diameter of the first shoulder pin shaft 5, and the second shoulder pin shaft 6 is made of cold heading steel.
The second shoulder pin shaft 6 adopts a B-shaped pin shaft in GB/T882-2008 standard, the lower end of the B-shaped pin shaft is provided with a split pin hole 601, the nominal diameter of the second shoulder pin shaft 6 is phi 12mm, the anti-falling device is a split pin 7, and the split pin 7 is inserted into the split pin hole 601 to prevent the second shoulder pin shaft 6 from falling out of the pin hole 501.
As shown in fig. 3, the second embodiment of the present invention is substantially the same as the first embodiment, except that: the outer diameter of the first shoulder pin shaft 5 is phi 60mm, and the outer diameter of the cylindrical pin of the second shoulder pin shaft 6 is phi 14 mm; and 2 annular grooves 602 are formed in the outer circular surface of one end of the far shaft shoulder of the second shoulder pin shaft 6, the anti-falling device is set to be a clamp spring 8, and the clamp springs 8 are arranged in the annular grooves 602, so that the second shoulder pin shaft 6 can be prevented from falling out of the pin hole 501.
As shown in fig. 4, the third embodiment of the present invention is substantially the same as the first embodiment, except that: the outer diameter of the first shoulder pin shaft 5 is phi 110mm, and the outer diameter of the cylindrical pin of the second shoulder pin shaft 6 is phi 18 mm; an external thread 603 is arranged on the outer circular surface of one end of the far shaft shoulder of the second shoulder pin shaft 6, the anti-falling device is set to be 1 nut 9, the nut 9 is sleeved on the external thread 603 of the shaft end of the second shoulder pin shaft 6 and is in threaded connection with the second shoulder pin shaft 6, and the second shoulder pin shaft 6 can be prevented from falling out of the pin hole 501.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a novel connecting pin axle device, includes first component, second component and first shoulder round pin axle, be equipped with first otic placode on the first component, be equipped with the second otic placode on the second component, first otic placode and second otic placode parallel arrangement, be equipped with first round pin shaft hole on the first otic placode, correspond the position with first round pin shaft hole on the second otic placode and be equipped with second round pin shaft hole, first shoulder round pin shaft passes first round pin shaft hole and second round pin shaft hole, is connected first otic placode and second otic placode to be connected first component and second component, make first component, second component all form rotatable coupling, its characterized in that with first shoulder round pin shaft: the first shoulder pin shaft is provided with a pin hole on the outer circular surface of one end far away from the shaft shoulder, the diameter of the pin hole is matched with the outer diameter of the second shoulder pin shaft, the second shoulder pin shaft is inserted into the pin hole and used for preventing the first shoulder pin shaft from being separated from the first pin shaft hole and the second pin shaft hole, and the end far away from the shaft shoulder of the second shoulder pin shaft is provided with an anti-separation device used for preventing the second shoulder pin shaft from being separated from the pin hole; the outer diameter of the second shoulder pin shaft is larger than 16% of the outer diameter of the first shoulder pin shaft, and the second shoulder pin shaft is made of cold heading steel.
2. The novel connecting pin device of claim 1, wherein: when the outer diameter of the first shoulder pin shaft is phi 40-phi 54mm, the outer diameter of the cylindrical pin of the second shoulder pin shaft is phi 12 mm; when the outer diameter of the first shoulder pin shaft is phi 55-phi 60mm, the outer diameter of the cylindrical pin of the second shoulder pin shaft is phi 14 mm; and when the outer diameter of the first shoulder pin shaft is phi 61-phi 110mm, the outer diameter of the cylindrical pin of the second shoulder pin shaft is phi 18 mm.
3. The novel connecting pin device of claim 2, wherein: the second shoulder pin shaft adopts a B-shaped pin shaft in GB/T882-2008 standard, the lower end of the B-shaped pin shaft is provided with a split pin hole, the anti-falling device is a split pin, and the split pin is inserted into the split pin hole and can prevent the second shoulder pin shaft from falling out of the pin hole.
4. The novel connecting pin device of claim 2, wherein: and 1-3 annular grooves are formed in the outer circular surface of one end of the far shaft shoulder on the second shoulder pin shaft, the anti-falling device is set to be a clamp spring, and the clamp springs are arranged in the annular grooves, so that the second shoulder pin shaft can be prevented from falling out of the pin hole.
5. The novel connecting pin device of claim 2, wherein: the anti-falling device is provided with 1-2 nuts, the nut is sleeved on the external thread of the shaft end of the second shouldered pin shaft and is in threaded connection with the second shouldered pin shaft, and the second shouldered pin shaft can be prevented from falling out of the pin hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220378263.6U CN216812402U (en) | 2022-02-23 | 2022-02-23 | Novel connecting pin shaft device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220378263.6U CN216812402U (en) | 2022-02-23 | 2022-02-23 | Novel connecting pin shaft device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216812402U true CN216812402U (en) | 2022-06-24 |
Family
ID=82043567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220378263.6U Active CN216812402U (en) | 2022-02-23 | 2022-02-23 | Novel connecting pin shaft device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216812402U (en) |
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2022
- 2022-02-23 CN CN202220378263.6U patent/CN216812402U/en active Active
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