CN215487185U - Pin shaft assembly - Google Patents
Pin shaft assembly Download PDFInfo
- Publication number
- CN215487185U CN215487185U CN202121943429.6U CN202121943429U CN215487185U CN 215487185 U CN215487185 U CN 215487185U CN 202121943429 U CN202121943429 U CN 202121943429U CN 215487185 U CN215487185 U CN 215487185U
- Authority
- CN
- China
- Prior art keywords
- pin
- pin shaft
- protrusion
- impact block
- assembly according
- 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.)
- Active
Links
Images
Landscapes
- Insertion Pins And Rivets (AREA)
Abstract
The utility model relates to the technical field of installation and limiting of fasteners and discloses a pin shaft assembly. The pin shaft assembly comprises a pin shaft (1) and a pin shaft impact block (2), a radial through hole (9) for installing a fixing bolt is formed in one end of the pin shaft (1), and the other end of the pin shaft (1) is detachably connected with the pin shaft impact block (2); the pin shaft impact block (2) is provided with a protrusion (3) extending outwards along the radial direction, the end face of the protrusion (3) facing the pin shaft (1) is a plane, the end face of the protrusion (3) facing away from the pin shaft (1) is a slope, so that the protrusion (3) is integrally formed into a triangular pyramid shape, and the edge and/or corner of the protrusion (3) is formed into a fillet. The pin shaft assembly is simple in structure, fast and convenient to assemble and disassemble, and has the advantages of preventing the pin shaft from being damaged easily, prolonging the service life and saving the cost.
Description
Technical Field
The utility model relates to the technical field of installation and limiting of fasteners, in particular to a pin shaft assembly.
Background
The pin shaft is a standard fastener, can be fixedly connected statically, can also move relative to a connected piece, and is mainly used at the hinged part of two parts to form hinged connection. The pin shaft is usually locked by a split pin, has reliable work and convenient disassembly, and is an indispensable key part of equipment such as engineering machinery and the like.
The current round pin axle sets up the otic placode at round pin axle head portion, otic placode and round pin axle body fixed connection, for example mutual welding set up a through-hole on the otic placode, and fixing bolt passes the screw hole cooperation on through-hole and the articulated part, realizes fixed with the otic placode, and then fixes the round pin axle, but this process is loaded down with trivial details relatively, with high costs. Meanwhile, in order to prevent the axial movement of the pin shaft, a pressing plate is generally adopted to press the lug plate to prevent the movement, or a radial hole is added on one section of the pin shaft and a bolt is installed, however, the installation is complex and the looseness is easy. In most application scenarios, for example, when the excavator works in outdoor operation and needs to be repaired, it is not ensured that a proper tool with a power source is used for repairing and replacing accessories. Therefore, in actual operation, the excavator usually adopts the most original manual knocking mode to detach and mount the pin shaft when replacing accessories and maintaining the oil cylinder. The problem that the end face of the lug plate of the pin shaft or the pin shaft hole is damaged or paint falls off and the like is easily caused by disassembling and assembling the pin shaft in a beating mode, and the like is not compensated.
Therefore, it is desirable to provide a pin assembly to solve the above problems in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that the end face or the pin shaft hole of a pin shaft lug plate is damaged or paint is easy to fall off when the pin shaft is disassembled and assembled in a beating mode in the prior art, and provides a pin shaft assembly which is simple in structure, quick and convenient to assemble and disassemble, and has the advantages of preventing the pin shaft from being easily damaged, prolonging the service life and saving the cost.
In order to achieve the purpose, the utility model provides a pin shaft assembly, which comprises a pin shaft and a pin shaft impact block, wherein one end of the pin shaft is provided with a radial through hole for installing a fixing bolt, and the other end of the pin shaft is detachably connected with the pin shaft impact block; the pin shaft impact block is provided with a protrusion extending outwards along the radial direction, the end face of the protrusion facing the pin shaft is a plane, and the end face of the protrusion facing away from the pin shaft is a slope, so that the protrusion integrally forms a triangular pyramid-like shape, and the edge and/or the corner of the protrusion is formed into a fillet.
Preferably, the end face part of the other end of the pin shaft is recessed inwards to form a threaded hole, and a threaded mounting lug which can be matched with the threaded hole for mounting is formed on the pin shaft impact block.
Preferably, the threaded hole is a straight threaded hole or a tapered threaded hole.
Preferably, the end face part of the other end of the pin shaft is recessed inwards to form a mounting hole, and an L-shaped limiting groove is formed in the inner wall of the mounting hole; a limiting pile is formed on the pin shaft impact block and can slide into the L-shaped limiting groove and be locked.
Preferably, the end surface of the pin impact block, which faces away from the pin, is formed with a truncated cone-shaped impact surface.
Preferably, the part of the pin impact block, which faces away from the pin, is wrapped by a plastic-impregnated layer or a rubber layer.
Preferably, the bulges are a plurality of and are uniformly arranged at intervals along the circumferential direction of the pin impact block.
Preferably, the surface of the pin shaft, which is in contact with the pin shaft impact block after being assembled, is a matching surface, the surface of the pin shaft impact block, which is in contact with the pin shaft after being assembled, is a combining surface, and the area of the combining surface is larger than that of the matching surface.
Preferably, an edge of an end surface of one end of the pin shaft is formed to be rounded.
Preferably, the hole edge of the radial through hole is formed as a chamfered edge.
Through above-mentioned technical scheme, this round pin axle subassembly is connected by round pin axle and round pin axle striking piece detachably, and when the two was assembled the back and was installed to round pin axle mounted position, use outside gravity to strike round pin axle striking piece and just can be sent into the round pin axle, avoided the impact directly to apply on the round pin axle, effectively prevent round pin axle terminal surface gouge, paint drop, screw hole damage. Meanwhile, the pin shaft impact block extends outwards along the radial direction to form a bulge, the bottom end face of the bulge is a plane, and the top end face of the bulge is a slope, so that the bulge is integrally formed into a triangular cone-like shape, and the pin shaft impact block can be quickly and conveniently detached from the pin shaft by rotating or drawing the bulge through external force. Furthermore, the convex edges and/or corners are subjected to rounding treatment, so that the hand scratches of operators at the hard and sharp edges or corners can be effectively prevented, and the safety coefficient is greatly improved.
Drawings
FIG. 1 is a schematic structural view of a pin assembly according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a pin according to one embodiment of the present invention;
FIG. 3 is a side view of a pin strike block in accordance with one embodiment of the present invention;
fig. 4 is an assembly view of a pin assembly according to an embodiment of the present invention.
Description of the reference numerals
1-pin shaft and 2-pin shaft impact block
3-convex 4-threaded hole
5-threaded mounting lug 6-impact surface
7-faying surface 8-mating surface
9-radial through hole
Detailed Description
The following detailed description of embodiments of the utility model refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, the directional words "inner, outer, top, bottom" and the like included in a term merely represent the orientation of the term in a conventional use state or a colloquial meaning understood by those skilled in the art, and should not be construed as limiting the term.
Referring to fig. 1, the utility model provides a pin shaft assembly, which comprises a pin shaft 1 and a pin shaft impact block 2, wherein one end of the pin shaft 1 is provided with a radial through hole 9 for installing a fixing bolt, and the other end of the pin shaft 1 is detachably connected with the pin shaft impact block 2; the pin shaft impact block 2 is formed with a protrusion 3 extending outwards along the radial direction, the end face of the protrusion 3 facing the pin shaft 1 is a plane, the end face of the protrusion 3 facing away from the pin shaft 1 is a slope, so that the protrusion 3 is integrally formed into a triangular pyramid shape, and the edge and/or corner of the protrusion 3 is formed into a fillet.
Therefore, the pin shaft assembly is detachably connected with the pin shaft impact block 2 through the pin shaft 1, the pin shaft assembly and the pin shaft impact block 2 are assembled and then installed at the pin shaft installation position, the pin shaft 1 can be sent in by knocking the pin shaft impact block 2 through external gravity, the impact force is prevented from being directly applied to the pin shaft 1, and the pin shaft 1 is effectively prevented from being damaged by knocking, paint falling and damage to a threaded hole in the end face. Meanwhile, the pin impact block 2 extends outwards along the radial direction to form a protrusion 3, the bottom end face of the protrusion 3 is a plane, and the top end face of the protrusion is a slope, so that the protrusion is integrally formed into a triangular pyramid-like shape, and the pin impact block 2 can be quickly and conveniently detached from the pin 1 by rotating or pulling the protrusion 3 through external force. Further, the edges and/or corners of the protrusions 3 are/is subjected to rounding treatment, so that the hand scratches of operators at hard and sharp edges or corners can be effectively prevented, and the safety coefficient is greatly improved.
In one embodiment of the present invention, the pin 1 and the pin striking block 2 are connected by a screw, that is, the end surface of the other end of the pin 1 is recessed inwards to form a threaded hole 4 (as shown in fig. 2), and the pin striking block 2 is formed with a threaded mounting protrusion 5 capable of being mounted in cooperation with the threaded hole 4.
In this way, the pin striking block 2 can be quickly and easily mounted on the pin 1 or dismounted from the pin 1 by rotating it. Further, in order to simplify the difficulty of disassembly and assembly and reduce the difficulty of processing the workpiece, preferably, the threaded hole 4 is a straight threaded hole or a tapered threaded hole.
In another embodiment of the utility model, the pin shaft 1 and the pin shaft impact block 2 are connected in a rapid limiting manner, namely, the end surface part of the other end of the pin shaft 1 is inwards sunken to form a mounting hole, and an L-shaped limiting groove is formed on the inner wall of the mounting hole; a limiting pile is formed on the pin shaft impact block 2 and can slide into the L-shaped limiting groove and be locked. When the pin shaft impact block 2 needs to be disassembled, the pin shaft impact block 2 rotates reversely to slide out of the L-shaped limiting groove for unlocking, and then the pin shaft impact block 2 is integrally pulled out.
As shown in fig. 3, when the pin striking block 2 is struck by an external force, in order to save the strength of an operator and avoid that the mounting speed is not affected by insufficient strength, the end surface of the pin striking block 2 facing away from the pin 1 is preferably formed with a truncated cone-shaped striking surface 6. Therefore, the contact area between the pin impact block 2 and a weight for applying external force is reduced, the pressure generated when the external force is applied is larger, and the pin 1 can smoothly enter the pin installation position.
The pin shaft assembly provided by the utility model is mostly applied to mechanical parts operated in the open air, the long-time wind, rain and rain easily cause the rusting of the pin shaft impact block 2, once the rusting of the pin shaft impact block 2 causes the inconvenience in installation between the pin shaft impact block and the pin shaft 1, or the contact part of the pin shaft impact block and the pin shaft 1 is rusted and difficult to detach after the installation, and in order to avoid the above situation, a plastic-impregnated layer or a rubber layer is preferably wrapped on the part of the pin shaft impact block 2, which is back to the pin shaft 1. After the plastic-impregnated layer is adopted for wrapping and rust prevention, the installation surfaces of the pin shaft impact block 2 and the pin shaft 1 are effectively rust-resistant and corrosion-resistant, and the service life is greatly prolonged.
In addition, for the convenience of being convenient for rotate or draw round pin axle striking block 2 among installation or the dismantlement process, preferably, arch 3 is a plurality of, and a plurality of archs 3 evenly interval arrange along the circumference direction of round pin axle striking block 2. Therefore, the operation is convenient, and the technical effect of multiple functions can be achieved.
In addition, in order to prevent the end surface of the pin shaft 1 from being accidentally damaged when the external force is knocked, preferably, the surface of the pin shaft 1, which is in contact with the pin shaft impact block 2 after being assembled, is a matching surface 8, the surface of the pin shaft impact block 2, which is in contact with the pin shaft 1 after being assembled, is a combining surface 7, and the area of the combining surface 7 is larger than that of the matching surface 8. Like this, can shelter from round pin axle 1 terminal surface completely after round pin axle striking block 2 installs, no matter external force is exerted from what angle and can not cause the influence to round pin axle 1 terminal surface, has guaranteed the integrality after round pin axle 1 installation dismantles many times.
Referring to fig. 4, the process of mounting and dismounting the pin shaft is as follows: when the installation is carried out, the pin shaft impact block 2 is firstly installed on the pin shaft 1, then the pin shaft component is partially pushed into the pin shaft installation hole, and a heavy object is used for impacting the pin shaft impact block 2 until the pin shaft 2 is installed in place; finally, the pin shaft impact block 2 is taken down; when the pin shaft is disassembled, a special tool is screwed into the threaded hole in the pin shaft 1 for disassembling. Further, the special tool comprises a puller and an inertia hammer.
In order to smoothly insert the pin shaft 1 into the pin shaft mounting hole during the mounting process, it is preferable that the edge of the end face of the one end of the pin shaft 1 is formed as a rounded corner.
Also, in order to facilitate smooth insertion of the fixing bolt into the radial through hole 9 without causing damage to the edge of the radial through hole 9 at the time of fixing, it is preferable that the hole edge of the radial through hole 9 is formed as a chamfered edge.
In conclusion, the pin shaft 1 is only provided with one part, the structure is simple, and machining can be completed; the pin shaft 1 does not need to be welded, and has light weight, low cost and small occupied space; the pin shaft 1 is matched with the pin shaft anti-collision block 2 during installation, so that the problems of gouge, paint falling, damage to a threaded hole and the like of the end surface of the pin shaft 1 are effectively prevented. Meanwhile, the pin shaft anti-collision block 2 can be repeatedly used and can be used for assembling various pin shafts 1, and the pin shaft anti-collision block is wide in application range and high in utilization rate.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the utility model, numerous simple modifications can be made to the technical solution of the utility model, including combinations of the individual specific technical features in any suitable way. The utility model is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
Claims (10)
1. The pin shaft assembly is characterized by comprising a pin shaft (1) and a pin shaft impact block (2), wherein one end of the pin shaft (1) is provided with a radial through hole (9) for mounting a fixing bolt, and the other end of the pin shaft (1) is detachably connected with the pin shaft impact block (2); the pin shaft impact block (2) is provided with a protrusion (3) extending outwards along the radial direction, the end face of the protrusion (3) facing the pin shaft (1) is a plane, the end face of the protrusion (3) facing away from the pin shaft (1) is a slope, so that the protrusion (3) is integrally formed into a triangular pyramid shape, and the edge and/or corner of the protrusion (3) is formed into a fillet.
2. The pin assembly according to claim 1, characterized in that the end surface of the other end of the pin (1) is recessed inwards to form a threaded hole (4), and the pin striking block (2) is formed with a threaded mounting protrusion (5) capable of being fitted with the threaded hole (4).
3. The pin assembly according to claim 2, characterized in that the threaded hole (4) is a straight threaded hole or a tapered threaded hole.
4. The pin shaft assembly according to claim 1, wherein the end surface part of the other end of the pin shaft (1) is recessed inwards to form a mounting hole, and an L-shaped limiting groove is formed on the inner wall of the mounting hole; and a limiting pile is formed on the pin shaft impact block (2), and the limiting pile can slide into the L-shaped limiting groove and be locked.
5. The pin assembly according to claim 1, characterized in that the end surface of the pin striking block (2) facing away from the pin (1) is formed with a truncated cone shaped striking surface (6).
6. The pin assembly according to claim 2, characterized in that the part of the pin striking block (2) facing away from the pin (1) is coated with a plastic or rubber impregnated layer.
7. The pin assembly according to claim 1, wherein the protrusion (3) is plural, and the plural protrusions (3) are uniformly spaced in a circumferential direction of the pin striking block (2).
8. The pin assembly according to claim 1, wherein the surface of the pin (1) that contacts the pin impact block (2) after assembly is a mating surface (8), the surface of the pin impact block (2) that contacts the pin (1) after assembly is a bonding surface (7), and the area of the bonding surface (7) is larger than the area of the mating surface (8).
9. The pin assembly according to claim 1, characterized in that the edge of the end face of said one end of the pin (1) is formed as a rounded corner.
10. The pin assembly according to claim 1, characterized in that the hole edge of the radial through hole (9) is formed as a chamfered edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121943429.6U CN215487185U (en) | 2021-08-18 | 2021-08-18 | Pin shaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121943429.6U CN215487185U (en) | 2021-08-18 | 2021-08-18 | Pin shaft assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215487185U true CN215487185U (en) | 2022-01-11 |
Family
ID=79762920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121943429.6U Active CN215487185U (en) | 2021-08-18 | 2021-08-18 | Pin shaft assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215487185U (en) |
-
2021
- 2021-08-18 CN CN202121943429.6U patent/CN215487185U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215487185U (en) | Pin shaft assembly | |
| US9027445B2 (en) | Socket with a reinforced strength | |
| US8950297B2 (en) | Socket with a reinforced strength | |
| CN214323213U (en) | Jack uide bushing assembly and disassembly tools | |
| CN212683782U (en) | Disassembling tool | |
| CN215701445U (en) | Positioning pin mounting tool | |
| CN212351797U (en) | Fastening assembly easy to assemble and disassemble | |
| CN203293108U (en) | Tool for dismounting and mounting helical blade | |
| CN217596983U (en) | Dismantling tool for reciprocating compressor air valve | |
| CN208323193U (en) | A kind of sleeve for assembling and disassembling nut on aircraft main axle | |
| CN220156307U (en) | Motor protective cover | |
| CN110815128A (en) | Test piece disassembling device and method | |
| CN214578247U (en) | Reusable retaining fastener for pharmaceutical equipment | |
| CN217703239U (en) | Pin puller | |
| CN218802019U (en) | Stifle bearing frame assembly and disassembly tools | |
| CN213673924U (en) | Pneumatic starter fluting nut's dismantlement frock | |
| CN215588985U (en) | Dismounting device of aircraft jaw nut | |
| CN216940406U (en) | Fastener installation tool | |
| CN219212984U (en) | Dismounting device for airplane wheel bearing oil seal | |
| CN212919146U (en) | Heavy-load type hexagonal wrench | |
| CN219854388U (en) | Dismounting device for tire bolts | |
| CN209755082U (en) | Outer hexagon bolt assembly and disassembly tools | |
| CN218140868U (en) | Dismounting device of axle wheel hub assembly is exclusively used in | |
| CN214924026U (en) | Oil seal mounting tool | |
| CN216608871U (en) | Bolt disassembling tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |