Improved pin shaft

Abstract

The invention provides an improved pin shaft, and relates to the technical field of chain equipment. The improved pin shaft comprises a pin shaft body, a hydraulic energy absorption cavity is formed in the pin shaft body, a plurality of transmission channels are formed in the side wall of the pin shaft body and communicate with the hydraulic energy absorption cavity, and transmission piston plates are arranged in the transmission channels. In the working process, in the process that the negative pressure plate is extruded once, the braking distance between the pin shaft and the sleeve can be shortened through extension of other transmission shafts, impact caused by movement is further reduced, and meanwhile the running stability of equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of chain equipment, in particular to an improved pin shaft. Background Art

[0002] The pin is a type of standardized fastener, mainly used at the hinge of two parts to form a hinge connection. It can be statically fixed or move relative to the connected parts. The pin uses the kinetic energy of rotation to transmit force, and transmits kinetic energy through the teeth of the pin. When the tooth end on the shaft rotates in the opposite direction to the current meshing tooth gap, a transmission force will be generated, which is slightly lower than the axial force of friction, thereby generating kinetic energy on the rotating pin, converting the rotational force into a higher axial force, causing the connecting part to rotate and realize the transmission function.

[0003] The force-bearing parts of traditional pins are relatively limited during the transmission process, and the fixed working scene often causes severe wear in local areas, affecting their working performance and even service life. Summary of the invention

[0004] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides an improved pin shaft, which solves the problem that the force-bearing parts of traditional pin shafts are relatively limited during the transmission process, and the local areas are often severely worn due to the fixed working scene, thus affecting their working performance and even service life.

[0005] (II) Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: an improved pin shaft, including a pin shaft body, a hydraulic energy absorption chamber is opened inside the pin shaft body, and a plurality of transmission channels are opened on the side wall of the pin shaft body, and the plurality of transmission channels are connected with the hydraulic energy absorption chamber, and a transmission piston plate is arranged inside the transmission channel, and the side walls of the plurality of transmission piston plates away from the hydraulic energy absorption chamber are fixedly connected with a transmission shaft, and the ends of the plurality of transmission shafts away from the transmission piston plate extend outside the transmission channel and are fixedly connected with a negative pressure plate, and the ends of the plurality of transmission channels away from the hydraulic energy absorption chamber are provided with a limit baffle, and the limit baffle is fixedly connected to the inner side wall of the transmission channel, and the limit baffle is slidably sleeved on the outer surface of the transmission shaft.

[0006] Preferably, a plurality of the limit baffles are each provided with a plurality of small holes.

[0007] Preferably, oil storage cotton and a reset support member are arranged between the limit baffle and the transmission piston plate located in the same transmission channel, and the reset support member is distributed around the outer surface of the transmission shaft.

[0008] Preferably, the hydraulic energy absorbing chamber is in the shape of a circular cylinder having the same height as the pin body.

[0009] Working principle: When the pin is working and is in a large load movement, due to the existence of the hydraulic energy absorption chamber and the transmission channel, the negative pressure plate under pressure from one side will transfer the pressure through the transmission piston plate and the transmission shaft through the hydraulic oil filled in the hydraulic oil absorption chamber to other transmission piston plates, thereby achieving a sufficient energy absorption effect and reducing the relative action between the sleeve and the pin. Therefore, it has a good protective effect on the pin, avoiding serious damage to local areas due to the solidification of the working environment, which affects the service life. In addition, during the operation, when a negative pressure plate is squeezed, the elongation of the remaining transmission shafts will shorten the braking distance between the pin and the sleeve, further reducing the impact caused by the movement while improving the stability of the equipment during operation.

[0010] (III) Beneficial effects The present invention provides an improved pin shaft, which has the following beneficial effects: 1. When the improved pin shaft is in a large load movement, due to the existence of the hydraulic energy absorption cavity and the transmission channel, the negative pressure plate under pressure from one side will transfer the pressure to the other transmission piston plate through the transmission piston plate and the transmission shaft through the hydraulic oil filled in the hydraulic oil absorption cavity, thereby achieving a full energy absorption effect and reducing the relative effect between the sleeve and the pin shaft. Therefore, it plays a good protective role for the pin shaft, avoiding serious damage to the local area due to the solidification of the working environment, which affects the service life.

[0011] 2. During the operation of the improved pin, when the negative pressure plate is squeezed, the elongation of the remaining transmission shafts will shorten the braking distance between the pin and the sleeve, further reducing the impact caused by the movement while also improving the stability of the equipment during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged view of point A.

[0013] Among them, 1. pin shaft body; 2. hydraulic energy absorption chamber; 3. transmission channel; 4. transmission piston plate; 5. reset support; 6. limit baffle; 7. transmission shaft; 8. negative pressure plate; 9. oil storage cotton. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0015] like Figure 1-2 As shown, an embodiment of the present invention provides an improved pin shaft, including a pin shaft body 1, a hydraulic energy absorption chamber 2 is opened inside the pin shaft body 1, a plurality of transmission channels 3 are opened on the side wall of the pin shaft body 1, and the plurality of transmission channels 3 are connected with the hydraulic energy absorption chamber 2, a transmission piston plate 4 is arranged inside the transmission channel 3, and the side walls of the plurality of transmission piston plates 4 away from the hydraulic energy absorption chamber 2 are fixedly connected with a transmission shaft 7, and one end of the plurality of transmission shafts 7 away from the transmission piston plate 4 extends to the outside of the transmission channel 3 and is fixedly connected with a negative pressure plate 8, and one end of the plurality of transmission channels 3 away from the hydraulic energy absorption chamber 2 is provided with a limit baffle 6, the limit baffle 6 is fixedly connected to the inner side wall of the transmission channel 3, and the limit baffle 6 is slidably sleeved on the outer surface of the transmission shaft 7.

[0016] Multiple limit baffles 6 are each penetrated by a plurality of small holes; oil storage cotton 9 and a reset support 5 are arranged between the limit baffle 6 and the transmission piston plate 4 located in the same transmission channel 3, and the reset support 5 is distributed around the outer surface of the transmission shaft 7; the shape of the hydraulic energy absorption chamber 2 is a circular cylinder with the same height as the pin shaft body 1.

[0017] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An improved pin, comprising a pin body (1), Features: A hydraulic energy absorption chamber (2) is provided inside the pin shaft body (1), and a plurality of transmission channels (3) are provided on the side wall of the pin shaft body (1). The plurality of transmission channels (3) are connected to the hydraulic energy absorption chamber (2), and a transmission piston plate (4) is provided inside the transmission channel (3). The side walls of the plurality of transmission piston plates (4) away from the hydraulic energy absorption chamber (2) are fixedly connected to a transmission shaft (7), and one end of the plurality of transmission shafts (7) away from the transmission piston plate (4) extends outside the transmission channel (3) and is fixedly connected to a negative pressure plate (8), and one end of the plurality of transmission channels (3) away from the hydraulic energy absorption chamber (2) is provided with a limit baffle (6), the limit baffle (6) is fixedly connected to the inner side wall of the transmission channel (3), and the limit baffle (6) is slidably sleeved on the outer surface of the transmission shaft (7).

2. The improved pin according to claim 1, Features: A plurality of the limit baffles (6) are each provided with a plurality of small holes.

3. The improved pin according to claim 1, Features: An oil storage cotton (9) and a reset support member (5) are arranged between the limit baffle (6) and the transmission piston plate (4) located in the same transmission channel (3), and the reset support member (5) is distributed around the outer surface of the transmission shaft (7).

4. The improved pin according to claim 1, Features: The hydraulic energy absorption chamber (2) is in the shape of a circular cylinder having the same height as the pin shaft body (1).

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