CN220082106U - High-reliability piston pin - Google Patents
High-reliability piston pin Download PDFInfo
- Publication number
- CN220082106U CN220082106U CN202320886798.9U CN202320886798U CN220082106U CN 220082106 U CN220082106 U CN 220082106U CN 202320886798 U CN202320886798 U CN 202320886798U CN 220082106 U CN220082106 U CN 220082106U
- Authority
- CN
- China
- Prior art keywords
- piston pin
- piston
- screw thread
- adjusting screw
- side end
- 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
- 210000000707 wrist Anatomy 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to a high-reliability piston pin. Including the piston pin body, fixed mounting has the second dead lever between the piston pin body inner wall circumference surface, the second dead lever left side end runs through and installs the adjusting screw thread, the hexagonal dismantlement groove has been seted up to adjusting screw thread left side end, threaded connection between adjusting screw thread and the second dead lever, adjusting screw thread right side fixed mounting has circular limiting plate, adjusting screw thread right side end is equipped with the bayonet lock piece. According to the utility model, the second fixing rod, the adjusting screw thread, the bayonet lock block and the two wedge blocks are arranged in the piston pin body, so that the two wedge blocks can be extruded to two sides under the drive of the bayonet lock block, the connection strength between the piston pin body and the piston and the connecting rod is enhanced, and when the piston pin is disassembled, the bayonet lock block can be driven to move to the left side only by reversing the adjusting screw thread, so that the two wedge blocks are separated from the connecting rod and the piston.
Description
Technical Field
The utility model relates to the technical field of pistons, in particular to a high-reliability piston pin.
Background
The piston assembly comprises a piston, a piston ring and a piston pin. The piston pin is a key part for connecting the piston and the connecting rod, and the piston pin is used for transmitting the gas pressure and the inertia force on the piston to the connecting rod through the pin seat and the piston pin, so that the conversion from kinetic energy to heat energy is completed. Piston pins are typically manufactured from low carbon steel and alloy steel, with high hardness, high strength, and toughness on the pin surface.
At present, the outer circular surface of the piston pin is in a smooth cylindrical shape, the inside of the piston pin is in a through hole shape, the piston pin is easy to fall off when the piston pin is used for a long time, the working efficiency of the piston is affected, and the piston pin is relatively troublesome to detach and install, so that the piston pin is easy to fall off when in use.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides a high-reliability piston pin.
The utility model provides the following technical scheme: including the piston pin body, fixed mounting has the second dead lever between the piston pin body inner wall circumference surface, the second dead lever left side end runs through and installs the regulation screw thread, six dismantlement grooves have been seted up to regulation screw thread left side end, threaded connection between regulation screw thread and the second dead lever, regulation screw thread right side fixed mounting has circular limiting plate, regulation screw thread right side end is equipped with the bayonet lock piece, the convex groove has been seted up to bayonet lock piece left side end, circular limiting plate rotates the convex inslot of cup jointing seting up at the bayonet lock piece, two wedge blocks are installed in the equidistant running through of piston pin body interlude inner wall circumference surface.
As a preferable technical scheme of the utility model, the cross section of the bayonet lock block is triangular.
As a preferable technical scheme of the utility model, the two opposite surfaces of the wedge-shaped block are respectively attached to the upper end and the lower end of the bayonet lock.
As a preferable technical scheme of the utility model, the front ends of the two wedge-shaped blocks are respectively provided with a sliding rectangular hole in a penetrating way.
As a preferable technical scheme of the utility model, the two wedge-shaped blocks are provided with the first fixing rods in the sliding rectangular holes in a sliding manner.
As a preferable technical scheme of the utility model, the two first fixing rods are fixedly arranged between the inner walls of the piston pin body.
Compared with the prior art, the utility model has the following advantages: 1. this high reliability piston pin through set up second dead lever and adjusting screw thread and bayonet lock piece and two wedge in the inside of piston pin body for two wedge can extrude to both sides under the drive of bayonet lock piece, has strengthened the joint strength between piston pin body and piston and the connecting rod, when dismantling, only need reverse adjusting screw thread, can drive the bayonet lock piece and remove to the left side, thereby makes separation between two wedge and connecting rod and the piston.
2. This high reliability wrist pin, simple structure, the installation of being convenient for and dismantlement can guarantee the piston simultaneously with the connection effect of being connected, the wrist pin drops when can preventing to use.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic view of the structure of the bayonet lock of the present utility model;
FIG. 3 is a schematic view of a second fixing rod according to the present utility model;
fig. 4 is a schematic structural view of the piston pin body of the present utility model.
Wherein: 11. a piston pin body; 12. wedge blocks; 13. sliding the rectangular hole; 14. a first fixing rod; 21. a second fixing rod; 22. adjusting the screw thread; 23. a hexagonal disassembly groove; 24. a circular limiting plate; 25. a convex groove; 26. and a bayonet lock block.
Description of the embodiments
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, a high reliability piston pin comprises a piston pin body 11, a second fixing rod 21 is fixedly installed between the circumferential surface of the inner wall of the piston pin body 11, an adjusting thread 22 is installed at the left side end of the second fixing rod 21 in a penetrating manner, a six-side dismounting groove 23 is formed at the left side end of the adjusting thread 22, the adjusting thread 22 is in threaded connection with the second fixing rod 21, a circular limiting plate 24 is fixedly installed at the right side end of the adjusting thread 22, a clamping block 26 is arranged at the right side end of the adjusting thread 22, a convex groove 25 is formed at the left side end of the clamping block 26, the circular limiting plate 24 is rotatably sleeved in the convex groove 25 formed at the clamping block 26, and two wedge blocks 12 are installed at the circumferential surface of the inner wall of the middle section of the piston pin body 11 in an equidistant penetrating manner.
Further, the cross-sectional shape of the bayonet block 26 is triangular.
Further, the opposite surfaces of the two wedge blocks 12 are respectively attached to the upper and lower ends of the bayonet block 26.
Further, the front ends of the two wedge blocks 12 are respectively provided with a sliding rectangular hole 13.
Further, a first fixing rod 14 is slidably installed in the sliding rectangular hole 13 formed in the two wedge blocks 12.
Further, both the first fixing rods 14 are fixedly installed between the inner walls of the piston pin body 11.
Further, the cross-sectional shape of the bayonet block 26 is triangular.
The working process of the utility model is as follows: when the device is used, the piston is connected with the connecting rod, the device is plugged between the piston and the connecting rod, the piston is connected with the connecting rod at the moment, when a gap appears between the device and the piston and the connecting rod due to abrasion, the device can be plugged into the hexagonal dismounting groove 23 formed by the adjusting screw thread 22 by using a tool, the adjusting screw thread 22 rotates, due to the fact that the adjusting screw thread 22 is in threaded connection with the second fixing rod 21, the second fixing rod 21 is fixedly arranged with the piston pin body 11, the adjusting screw thread 22 moves towards the right side, the adjusting screw thread 22 drives the circular limiting plate 24 to rotate when rotating, the bayonet lock 26 can move towards the right side under the condition of no rotation through the circular limiting plate 24, the bayonet lock 26 can squeeze the two wedge blocks 12 at the moment, the two wedge blocks 12 can move towards the two sides under the extrusion of the bayonet lock 26 through the triangular design of the bayonet lock 26, and when the two wedge blocks 12 move towards the two sides, the two wedge blocks 12 can be fixed with the piston and the connecting rod.
The opposite surfaces of the two wedge blocks 12 are respectively attached to the upper and lower ends of the bayonet block 26. The front ends of the two wedge blocks 12 are provided with sliding rectangular holes 13. The two wedge blocks 12 are provided with sliding rectangular holes 13 in which a first fixing rod 14 is arranged in a sliding manner. Both the first fixing rods 14 are fixedly installed between the inner walls of the piston pin body 11.
The utility model discloses an inside at piston pin body 11 sets up second dead lever 21 and adjusts screw thread 22 and bayonet lock piece 26 and two wedge 12 for two wedge 12 can extrude to both sides under the drive of bayonet lock piece 26, have strengthened the joint strength between piston pin body 11 and piston and the connecting rod, when dismantling, only need reverse adjusting screw thread 22, can drive bayonet lock piece 26 and remove to the left side, thereby make the separation between two wedge 12 and connecting rod and the piston. The utility model has simple structure, is convenient to install and disassemble, can ensure the connection effect of the piston and the connection, and can prevent the piston pin from falling off during use.
The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.
Claims (6)
1. High reliability wrist pin, including piston pin body (11), its characterized in that: the piston pin comprises a piston pin body (11), wherein a second fixing rod (21) is fixedly arranged between the circumferential surfaces of the inner walls of the piston pin body (11), an adjusting thread (22) is arranged at the left side end of the second fixing rod (21) in a penetrating mode, a six-side disassembling groove (23) is formed in the left side end of the adjusting thread (22), threads are connected between the adjusting thread (22) and the second fixing rod (21), a circular limiting plate (24) is fixedly arranged at the right side end of the adjusting thread (22), a clamping pin block (26) is arranged at the right side end of the adjusting thread (22), a convex groove (25) is formed in the left side end of the clamping pin block (26), the circular limiting plate (24) is rotatably sleeved in the convex groove (25) formed in the clamping pin block (26), and two wedge blocks (12) are arranged on the circumferential surfaces of the inner walls of the middle section of the piston pin body (11) in an equidistant penetrating mode.
2. A high reliability wrist pin according to claim 1, wherein: the cross section of the bayonet lock block (26) is triangular.
3. A high reliability wrist pin according to claim 1, wherein: the opposite surfaces of the two wedge-shaped blocks (12) are respectively attached to the upper end and the lower end of the clamping pin block (26).
4. A high reliability wrist pin according to claim 1, wherein: sliding rectangular holes (13) are formed in the front ends of the two wedge-shaped blocks (12) in a penetrating mode.
5. A high reliability wrist pin according to claim 4, wherein: the two wedge blocks (12) are provided with sliding rectangular holes (13) in which a first fixing rod (14) is arranged in a sliding mode.
6. A high reliability wrist pin according to claim 5, wherein: the two first fixing rods (14) are fixedly arranged between the inner walls of the piston pin body (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320886798.9U CN220082106U (en) | 2023-04-19 | 2023-04-19 | High-reliability piston pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320886798.9U CN220082106U (en) | 2023-04-19 | 2023-04-19 | High-reliability piston pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220082106U true CN220082106U (en) | 2023-11-24 |
Family
ID=88830715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320886798.9U Active CN220082106U (en) | 2023-04-19 | 2023-04-19 | High-reliability piston pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220082106U (en) |
-
2023
- 2023-04-19 CN CN202320886798.9U patent/CN220082106U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |