阅读说明：本技术 一种轻量化三球销式等速万向节总成 (Lightweight tripod constant velocity universal joint assembly ) 是由 孔玉 周典航 于 2020-07-08 设计创作，主要内容包括：本发明属于等速万向节总成技术领域,具体的说是一种轻量化三球销式等速万向节总成,包括主体、固定槽块和主齿轴,所述主体的四周安装有束线机构,所述固定槽块的一侧安装有卡箍,且固定槽块位于主体的一侧,所述卡箍的一侧安装有橡胶护套,所述主齿轴的一侧安装有轴杆,且主齿轴位于固定槽块的内部,所述固定槽块远离固定槽块的水平中心线的一侧安装有截面,所述主齿轴远离主齿轴的水平中心线的一侧安装有缓冲机构；本发明通过卡箍能够有效的为橡胶护套与固定槽块之间提供可靠的固定方式,通过橡胶护套能够有效的减少外部的灰尘的进入,防止灰尘吸附在轴杆的外部表面,能够有效的减轻轴杆与外部连接部件之间的机械磨损。(The invention belongs to the technical field of constant velocity universal joint assemblies, and particularly relates to a light-weight tripod constant velocity universal joint assembly which comprises a main body, a fixed groove block and a main gear shaft, wherein a wire bundling mechanism is arranged around the main body, a hoop is arranged on one side of the fixed groove block, the fixed groove block is positioned on one side of the main body, a rubber sheath is arranged on one side of the hoop, a shaft rod is arranged on one side of the main gear shaft, the main gear shaft is positioned in the fixed groove block, a cross section is arranged on one side of the fixed groove block, which is far away from a horizontal central line of the fixed groove block, and a buffer mechanism is arranged on one side of the main gear shaft, which is far away from the horizontal central line of; the fixing device can effectively provide a reliable fixing mode between the rubber sheath and the fixing groove block through the hoop, can effectively reduce the entrance of external dust through the rubber sheath, prevents the dust from being adsorbed on the external surface of the shaft rod, and can effectively reduce the mechanical abrasion between the shaft rod and an external connecting part.)

1. The utility model provides a light-weighted tripod constant velocity cardan joint assembly, includes main part (1), fixed slot (3) and main pinion (8), its characterized in that, install beam line mechanism (2) around main part (1), clamp (4) are installed to one side of fixed slot (3), and fixed slot (3) are located one side of main part (1), rubber sheath (5) are installed to one side of clamp (4), axostylus axostyle (6) are installed to one side of main pinion (8), and main pinion (8) are located the inside of fixed slot (3), cross-section (7) are installed to one side of the horizontal center line that fixed slot (3) was kept away from to fixed slot (3) in fixed slot (3), buffer gear (9) are installed to one side of the horizontal center line that main pinion (8) were kept away from in main pinion (8); the fixed groove blocks (3) form an integrated structure through the sections (7), and the outer parts of the sections (7) are of cambered surface structures; the fixed groove block (3) forms a detachable structure with the rubber sheath (5) through the hoop (4), and the outer part of the rubber sheath (5) is of a fold structure; cleaning grooves (10) which are uniformly distributed around are formed in the main body (1); the side wall of the cleaning groove (10) far away from the center of the main body (1) is fixedly connected with uniformly arranged magnetic needles (11); first cleaning holes (12) which are uniformly distributed are formed in the inner wall of the main body (1) at the position of each cleaning groove (10); the first cleaning hole (12) is designed in a circular truncated cone shape; the first cleaning holes (12) are arranged in one-to-one correspondence with the magnetic needles (11), and second cleaning holes (13) are formed in the periphery of the connection part of each magnetic needle (11) and the cleaning groove (10); the side wall of the second cleaning hole (13) is designed in an arc shape.

2. A lightweight tripod constant velocity joint assembly according to claim 1, wherein a cleaning plate (14) is slidably connected within each cleaning groove (10); the cleaning plate (14) is designed in an arc shape, and two ends of the cleaning plate (14) are designed to be tightly attached to the side wall of the corresponding cleaning groove (10); the inner wall of one side of the cleaning groove (10) close to the center of the main body (1) is provided with spring grooves (15) which are uniformly distributed; the spring grooves (15) and the first cleaning holes (12) are alternately arranged; a spring is fixedly connected between each spring groove (15) and the surface of the cleaning plate (14); the middle part of one side of the cleaning plate (14) far away from the spring groove (15) is fixedly connected with a screw rod (16); the screw rod (16) penetrates through the outer surface of the main body (1), and a knob is fixedly connected to the outer surface of the main body (1); the outer surface of the main body (1) is fixedly connected with four threaded rings (17) which are uniformly arranged in a circumferential manner; the screw (16) penetrates through the corresponding threaded ring (17) and is in threaded engagement with the threaded ring (17); third cleaning holes (18) which are uniformly distributed are formed in the surface of the cleaning plate (14); the third cleaning holes (18) are designed to correspond to the magnetic needles (11) one by one; the inner wall of the third cleaning hole (18) is fixedly connected with a cleaning ring (19); the cleaning ring (19) is made of rubber materials, an extrusion cavity (20) is formed in the cleaning ring (19), and springs which are uniformly distributed are arranged in the extrusion cavity (20), so that the cleaning ring (19) is tightly attached to the surface of the magnetic needle (11); the end part of the magnetic needle (11) is designed in an arc shape.

3. A light-weight tripod constant velocity joint assembly according to claim 2, wherein the clearance groove (10) is fixedly connected with a squeeze ring (21) at a side of the first clearance hole (12) away from the main body (1), and the squeeze ring (21) is arranged in one-to-one correspondence with the first clearance hole (12); the outer diameter of the extrusion ring (21) is smaller than the diameter of the third cleaning hole (18), and the inner diameter of the extrusion ring (21) is larger than the maximum diameter of the magnetic needle (11); the surface of the cleaning ring (19) far away from the center of the main body (1) is provided with air holes which are uniformly distributed.

4. The light-weight tripod type constant velocity universal joint assembly according to claim 1, wherein the wire binding mechanism (2) comprises a wire binding groove (201), a pressing piece (202), a return spring (203) and a shaft pin (204), the return spring (203) is arranged inside the wire binding groove (201), the shaft pin (204) is arranged inside the return spring (203), and the pressing piece (202) is installed on one side of the wire binding groove (201) far away from the main body (1); the wire bundling grooves (201) and the pressing sheets (202) form an elastic structure through the matching between the return springs (203) and the shaft pins (204), and the wire bundling grooves (201) are uniformly distributed along the periphery of the main body (1).

5. A lightweight tripod constant velocity joint assembly according to claim 1, wherein the damping mechanism (9) comprises a stopper (901), a runner (902), a damping spring (903) and an oil groove (904), the oil groove (904) is provided inside the stopper (901), the runner (902) is mounted on a side of the stopper (901) away from the main gear shaft (8), and the damping spring (903) is provided inside the runner (902); the stopper (901) and the fixed groove block (3) form an elastic structure through the buffer spring (903), and the fixed groove block (3) and the stopper (901) form a sliding structure through the sliding groove (902).

6. A lightweight tripod constant velocity joint assembly according to claim 3, wherein the stopper (901) is formed in an integral structure by an oil groove (904), and the outer portion of the oil groove (904) is formed in an arcuate structure.

Technical Field

The invention belongs to the technical field of constant velocity universal joint assemblies, and particularly relates to a light tripod type constant velocity universal joint assembly.

Background

With the increasing interest of energy conservation and environmental protection, the light weight is also widely applied to the field of common automobiles, and the constant velocity universal joint has excellent oil saving performance while improving the controllability, wherein the constant velocity universal joint has the function of connecting two rotating shafts with an included angle or changed mutual positions between the shafts, and enables the two shafts to transmit power at the same angular velocity, can overcome the problem of non-constant velocity of the common cross shaft type universal joint, and is particularly suitable for a steering drive axle.

Generally in the use of constant velocity joint assembly, the inside subassembly for the constant velocity joint assembly that can not be fine provides reliable lubrication, the entering of the outside dust that can not be fine prevents, and the weight of passing through of constant velocity joint assembly self that can not be fine, and then realize the lightweight performance of constant velocity joint assembly self, simultaneously along with the use of constant velocity joint assembly, inside produces more abrasive dust easily, the clearance step is complicated, and the clearance is not thorough enough, seriously influence the life of constant velocity joint assembly.

Disclosure of Invention

In order to make up the defects of the prior art and solve the problems that reliable lubrication cannot be well provided for internal components of a constant velocity universal joint assembly, external dust cannot be well prevented from entering the constant velocity universal joint assembly, the weight of the constant velocity universal joint assembly cannot be well reduced, and further the light weight performance of the constant velocity universal joint assembly is realized, meanwhile, along with the use of the constant velocity universal joint assembly, more abrasive dust is easily generated in the constant velocity universal joint assembly, the cleaning steps are complicated, the cleaning is not thorough enough, and the service life of the constant velocity universal joint assembly is seriously influenced, the light weight tripod type constant velocity universal joint assembly provided by the invention has the advantages that the service life of the constant velocity universal joint assembly is prolonged, and the constant velocity universal joint assembly is light in weight and has a simple structure.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a light-weight tripod constant velocity universal joint assembly which comprises a main body, a fixed groove block and a main gear shaft, wherein a wire bundling mechanism is arranged on the periphery of the main body, a hoop is arranged on one side of the fixed groove block, the fixed groove block is positioned on one side of the main body, a rubber sheath is arranged on one side of the hoop, a shaft lever is arranged on one side of the main gear shaft, the main gear shaft is positioned in the fixed groove block, a cross section is arranged on one side of the fixed groove block, which is far away from a horizontal central line of the fixed groove block, and a buffer mechanism is arranged on one side of the main gear shaft, which is far away from the horizontal central line of the main; the fixed groove blocks form an integrated structure through sections, and the outer parts of the sections are of cambered surface structures; the fixed groove block and the rubber sheath form a detachable structure through the hoop, and the outer part of the rubber sheath is of a fold structure; cleaning grooves which are uniformly distributed circumferentially are formed in the main body; the side wall of the cleaning groove far away from the center of the main body is fixedly connected with magnetic needles which are uniformly arranged; first cleaning holes which are uniformly distributed are formed in the inner wall of the main body at the position of each cleaning groove; the first cleaning hole is designed in a circular truncated cone shape; the first cleaning holes and the magnetic needles are arranged in one-to-one correspondence, and second cleaning holes are formed in the periphery of the connection part of each magnetic needle and the cleaning groove; the side wall of the second cleaning hole is in an arc shape; when in work, the material of the universal joint assembly component can be effectively reduced through the section, and the self weight of the universal joint assembly can be effectively reduced, thereby effectively providing the light weight function for the universal joint assembly, secondly, a reliable fixing mode is provided between the rubber sheath and the fixing groove block through the hoop, the entering of external dust can be effectively reduced through the rubber sheath, the dust is prevented from being adsorbed on the external surface of the shaft rod, meanwhile, after being used for a period of time, the magnetic needle can attract the abrasive dust generated in the main body, thereby leading the abrasive dust to enter the cleaning groove through the first cleaning hole, preventing the accumulation of the abrasive dust and unsmooth operation along with the increase of the use time, thereby improve the life of universal joint assembly, reduce the degree of wear, through the design of first clearance hole round platform shape, can accelerate the speed that the abrasive dust got into the clearance groove.

Preferably, a cleaning plate is connected in each cleaning groove in a sliding manner; the cleaning plate is designed in an arc shape, and two ends of the cleaning plate are tightly attached to the side wall of the corresponding cleaning groove; the inner wall of one side of the cleaning groove close to the center of the main body is provided with spring grooves which are uniformly distributed; the spring grooves and the first cleaning holes are alternately arranged; a spring is fixedly connected between each spring groove and the surface of the cleaning plate; the middle part of one side of the cleaning plate, which is far away from the spring groove, is fixedly connected with a screw; the screw rod penetrates through the outer surface of the main body and is fixedly connected with a knob; the outer surface of the main body is fixedly connected with four threaded rings which are uniformly arranged in a circumferential manner; the screw rod penetrates through the corresponding threaded ring and is in threaded engagement with the threaded ring; the surface of the cleaning plate is provided with third cleaning holes which are uniformly distributed; the third cleaning holes and the magnetic needles are designed in a one-to-one correspondence manner; the inner wall of the third cleaning hole is fixedly connected with a cleaning ring; the cleaning ring is made of rubber materials, an extrusion cavity is formed in the cleaning ring, and springs are uniformly arranged in the extrusion cavity to enable the cleaning ring to be tightly attached to the surface of the magnetic needle; the end part of the magnetic needle is designed in an arc shape; the during operation, the adhesion in the magnetism needle surface is adhered because of the attraction in the magnetism needle behind the abrasive dust entering clearance groove, through manual clockwise rotation knob this moment, make the screw rod drive clearance board slide to second clearance hole position, thereby make clearance ring extrusion and strike off the abrasive dust of magnetism needle surface adhesion, make the abrasive dust remove and pile up to second clearance hole direction, along with the accumulational abrasive dust of second clearance hole department increases, can release the abrasive dust through the second clearance hole, conveniently collect and recycle, prevent simultaneously that the clearance inslot abrasive dust from piling up more, influence the collection of abrasive dust, further guarantee the collection efficiency of abrasive dust, thereby further improve life, after partial abrasive dust discharges through the second clearance hole, anticlockwise rotation knob makes the screw rod drive clearance board to first clearance hole direction removal, thereby at the reciprocating motion that the clearance board relapses, improve the clearance efficiency of abrasive dust.

Preferably, the cleaning groove is fixedly connected with extrusion rings at one side of the first cleaning hole, which is far away from the main body, and the extrusion rings are arranged in one-to-one correspondence with the first cleaning hole; the outer diameter of the extrusion ring is smaller than the diameter of the third cleaning hole, and the inner diameter of the extrusion ring is larger than the maximum diameter of the magnetic needle; the surface of the cleaning ring, which is far away from the center of the main body, is provided with air holes which are uniformly distributed; during operation, the knob anticlockwise rotates, make the clearance board to first clearance hole removal in-process extrusion ring insert in the third clearance hole and extrude the clearance ring, can strike off the abrasive dust of clearance ring surface adhesion, drop on the magnetism needle, improve the efficiency in abrasive dust discharge second clearance hole, extrusion ring extrusion clearance ring simultaneously, make the gaseous blow-out through the gas pocket of clearance intra-annular, thereby make the abrasive dust to second clearance hole direction removal, simultaneously will block up the abrasive dust that blocks up on the second clearance hole and blow off the second clearance hole, further improve abrasive dust collection efficiency, prevent simultaneously that the second clearance hole from blockking up, and when clearance ring parcel is on the magnetism needle, the clearance ring receives the extrusion, gaseous blow-out through the gas pocket, improve the clearance efficiency to magnetism needle surface abrasive dust.

Preferably, the wire bundling mechanism comprises a wire bundling groove, a pressing piece, a return spring and a shaft pin, the return spring is arranged in the wire bundling groove, the shaft pin is arranged in the return spring, and the pressing piece is arranged on one side, far away from the main body, of the wire bundling groove; the wire bundling grooves and the pressing sheet form an elastic structure through the matching between the return spring and the shaft pin, and the wire bundling grooves are uniformly distributed along the periphery of the main body; the during operation loosens the preforming, gets back to initial position with the preforming through return spring, fixes the pipeline in the inside of bunch groove through the preforming, and bunch groove provides reliable calandria track for the user, makes the pipeline arrange according to the track of stipulating, prevents not hard up of pipeline, can effectually alleviate the mechanical wear between pipeline and the universal joint assembly subassembly.

Preferably, the buffer mechanism comprises a stop block, a sliding chute, a buffer spring and an oil groove, the oil groove is arranged in the stop block, the sliding chute is arranged on one side of the stop block, which is far away from the main gear shaft, and the buffer spring is arranged in the sliding chute; the stop block and the fixed groove block form an elastic structure through the buffer spring, and the fixed groove block and the stop block form a sliding structure through the sliding groove; during operation, when the inside subassembly of universal joint assembly takes place to touch with the dog, can effectually separate between fixed groove piece and the inside subassembly of universal joint assembly through buffer spring, can effectually alleviate the inside subassembly of universal joint assembly and the collision dynamics between the fixed groove piece.

Preferably, the stop block forms an integrated structure through an oil groove, and the outer part of the oil groove is of an arc structure; during operation, lubricating oil can be placed in the oil groove, and lubricating oil can provide antifriction and wear-resistant functions for the inside subassembly of universal joint assembly to and reduce frictional resistance with the energy saving, reduce wearing and tearing in order to prolong mechanical life, improve economic benefits.

The invention has the following beneficial effects:

1. according to the light tripod constant velocity universal joint assembly, the magnetic needle, the cleaning plate, the first cleaning hole, the second cleaning hole, the third cleaning hole, the cleaning ring and the extrusion ring are arranged, so that abrasive dust generated in the main body 1 is effectively attracted and discharged, the operation is simple and convenient, and the service life of the universal joint assembly is effectively prolonged.

2. According to the light tripod constant velocity universal joint assembly, the pipeline is fixed inside the wire bunching groove through the pressing sheet, the wire bunching groove provides a reliable pipe arranging track for a user, the pipeline is arranged according to the specified track, the looseness of the pipeline is prevented, and the mechanical abrasion between the pipeline and the universal joint assembly component can be effectively reduced.

3. According to the light tripod type constant velocity universal joint assembly, the material of the components of the universal joint assembly can be effectively reduced through the section, the weight of the universal joint assembly can be effectively reduced, and therefore the light function can be effectively provided for the universal joint assembly.

4. According to the light tripod constant velocity universal joint assembly, a reliable fixing mode can be effectively provided between the rubber sheath and the fixing groove block through the hoop, external dust can be effectively reduced through the rubber sheath, dust is prevented from being adsorbed on the outer surface of the shaft rod, mechanical abrasion between the shaft rod and an external connecting part can be effectively reduced, and reliable stretching deformation can be provided for the rubber sheath through the fold structure of the rubber sheath.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic side view of the retaining slot of the present invention;

FIG. 3 is a schematic view of the structure of the cushioning mechanism of the present invention;

FIG. 4 is a cross-sectional view of the body of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 2 at A;

FIG. 6 is a partial enlarged view of FIG. 4 at B;

in the figure: the device comprises a main body 1, a wire bundling mechanism 2, a wire bundling groove 201, a pressing sheet 202, a return spring 203, a shaft pin 204, a fixed groove block 3, a hoop 4, a rubber sheath 5, a shaft rod 6, a section 7, a main gear shaft 8, a buffer mechanism 9, a stop block 901, a sliding groove 902, a buffer spring 903, an oil groove 904, a cleaning groove 10, a magnetic needle 11, a first cleaning hole 12, a second cleaning hole 13, a cleaning plate 14, a spring groove 15, a screw 16, a threaded ring 17, a third cleaning hole 18, a cleaning ring 19, an extrusion cavity 20 and an extrusion ring 21.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 6, the light tripod constant velocity universal joint assembly according to the present invention includes a main body 1, a fixed groove block 3 and a main gear shaft 8, wherein a wire binding mechanism 2 is installed around the main body 1, a clamp 4 is installed on one side of the fixed groove block 3, the fixed groove block 3 is located on one side of the main body 1, a rubber sheath 5 is installed on one side of the clamp 4, a shaft lever 6 is installed on one side of the main gear shaft 8, the main gear shaft 8 is located inside the fixed groove block 3, a cross section 7 is installed on one side of the fixed groove block 3 away from a horizontal center line of the fixed groove block 3, and a buffer mechanism 9 is installed on one side of the main gear shaft 8 away from the horizontal center line of the main gear shaft 8; the fixed groove blocks 3 form an integrated structure through the sections 7, and the outer parts of the sections 7 are of cambered surface structures; the fixed groove block 3 and the rubber sheath 5 form a detachable structure through the hoop 4, and the outer part of the rubber sheath 5 is of a fold structure; cleaning grooves 10 which are uniformly distributed circumferentially are formed in the main body 1; the side wall of the cleaning groove 10 far away from the center of the main body 1 is fixedly connected with magnetic needles 11 which are uniformly arranged; first cleaning holes 12 are uniformly distributed in the inner wall of the main body 1 at the positions of the cleaning grooves 10; the first cleaning hole 12 is designed in a circular truncated cone shape; the first cleaning holes 12 are arranged corresponding to the magnetic needles 11 one by one, and a second cleaning hole 13 is formed on the periphery of the connection part of each magnetic needle 11 and the cleaning groove 10; the side wall of the second cleaning hole 13 is designed in an arc shape; during operation, the material of the universal joint assembly component can be effectively reduced through the cross section 7, and then the self weight of the universal joint assembly can be effectively reduced, so that the light-weighted function can be effectively provided for the universal joint assembly, secondly, a reliable fixing mode is provided between the rubber sheath 5 and the fixed groove block 3 through the hoop 4, the entering of external dust can be effectively reduced through the rubber sheath 5, the dust is prevented from being adsorbed on the external surface of the shaft rod 6, meanwhile, after the universal joint assembly is used for a period of time, the abrasive dust generated in the main body 1 can be attracted through the magnetism of the magnetic needle 11, so that the abrasive dust enters the cleaning groove 10 through the first cleaning hole 12, the accumulation of the abrasive dust and unsmooth operation caused by the increase of the service time are prevented, the service life of the universal joint assembly is prolonged, the abrasion degree is reduced, through the design of the circular truncated cone shape of the first cleaning hole 12, the rate of abrasive dust entering the cleaning tank 10 can be increased.

As an embodiment of the present invention, a cleaning plate 14 is slidably connected in each cleaning groove 10; the cleaning plate 14 is designed in an arc shape, and two ends of the cleaning plate 14 are designed to be tightly attached to the side walls of the corresponding cleaning grooves 10; the inner wall of one side of the cleaning groove 10 close to the center of the main body 1 is provided with spring grooves 15 which are uniformly distributed; the spring grooves 15 and the first cleaning holes 12 are alternately arranged; a spring is fixedly connected between each spring groove 15 and the surface of the cleaning plate 14; the middle part of one side of the cleaning plate 14, which is far away from the spring groove 15, is fixedly connected with a screw 16; the screw 16 penetrates out of the outer surface of the main body 1, and a knob is fixedly connected to the outer surface of the main body 1; the outer surface of the main body 1 is fixedly connected with four threaded rings 17 which are uniformly arranged in a circumferential manner; the screw 16 passes through the corresponding threaded ring 17 and is in threaded engagement with the threaded ring 17; the surface of the cleaning plate 14 is provided with third cleaning holes 18 which are uniformly distributed; the third cleaning holes 18 are designed to correspond to the magnetic needles 11 one by one; the inner wall of the third cleaning hole 18 is fixedly connected with a cleaning ring 19; the cleaning ring 19 is made of rubber materials, an extrusion cavity 20 is formed in the cleaning ring 19, and springs which are uniformly distributed are arranged in the extrusion cavity 20, so that the cleaning ring 19 is tightly attached to the surface of the magnetic needle 11; the end part of the magnetic needle 11 is designed in an arc shape; when the magnetic needle cleaning device works, after abrasive dust enters the cleaning groove 10, the abrasive dust is adhered to the surface of the magnetic needle 11 due to the attraction of the magnetic needle 11, at the moment, the screw rod 16 drives the cleaning plate 14 to slide towards the position of the second cleaning hole 13 through manual clockwise rotation of the knob, so that the cleaning ring 19 extrudes and scrapes the abrasive dust adhered to the surface of the magnetic needle 11, the abrasive dust is moved towards the direction of the second cleaning hole 13 and accumulates, as the accumulated abrasive dust in the second cleaning hole 13 increases, the abrasive dust can be pushed out through the second cleaning hole 13, the collection and the reutilization are convenient, meanwhile, the accumulation of the abrasive dust in the cleaning groove 10 is prevented from being more, the collection of the abrasive dust is influenced, the collection efficiency of the abrasive dust is further ensured, the service life is further prolonged, after part of the abrasive dust is discharged through the second cleaning hole 13, the knob is rotated anticlockwise so that the screw rod 16 drives the cleaning plate 14 to move towards the direction of the first cleaning hole 12, and the cleaning plate 14 repeatedly moves back and, the efficiency of the clearance of abrasive dust is improved.

As an embodiment of the present invention, the cleaning groove 10 is fixedly connected with a squeezing ring 21 at a side of the first cleaning hole 12 away from the main body 1, and the squeezing rings 21 and the first cleaning hole 12 are arranged in a one-to-one correspondence; the outer diameter of the extrusion ring 21 is smaller than the diameter of the third cleaning hole 18, and the inner diameter of the extrusion ring 21 is larger than the maximum diameter of the magnetic needle 11; the surface of the cleaning ring 19, which is far away from the center of the main body 1, is provided with air holes which are uniformly distributed; during operation, the knob anticlockwise rotates, make clearance plate 14 remove in-process extrusion ring 21 to first clearance hole 12 and insert in the third clearance hole 18 and extrude clearance ring 19, can strike off the abrasive dust of clearance ring 19 surface adhesion, drop on magnetic needle 11, improve the efficiency of abrasive dust discharge second clearance hole 13, simultaneously extrusion ring 21 extrudes clearance ring 19, make the gaseous blowout through the gas pocket in clearance ring 19, thereby make the abrasive dust remove to second clearance hole 13 direction, blow off the abrasive dust that blocks up on second clearance hole 13 in the while and blow off second clearance hole 13, further improve abrasive dust collection efficiency, prevent second clearance hole 13 simultaneously and block up, and when clearance ring 19 wraps up on magnetic needle 11, clearance ring 19 receives the extrusion, gaseous blowout through the gas pocket, improve the clearance efficiency to magnetic needle 11 surface abrasive dust.

As an embodiment of the invention, the wire binding mechanism 2 comprises a wire binding groove 201, a pressing piece 202, a return spring 203 and a shaft pin 204, wherein the return spring 203 is arranged inside the wire binding groove 201, the shaft pin 204 is arranged inside the return spring 203, and the pressing piece 202 is arranged on one side of the wire binding groove 201 away from the main body 1; the wire bundling grooves 201 and the pressing sheet 202 form an elastic structure through the matching between the return spring 203 and the shaft pin 204, and the wire bundling grooves 201 are uniformly distributed along the periphery of the main body 1; during operation loosens preforming 202, gets back to initial position with preforming 202 through return spring 203, fixes the pipeline in the inside of bunch groove 201 through preforming 202, and bunch groove 201 provides reliable calandria track for the user, makes the pipeline arrange according to the track of stipulating, prevents not hard up of pipeline, can effectually alleviate the mechanical wear between pipeline and the universal joint assembly subassembly.

As an embodiment of the present invention, the buffer mechanism 9 includes a stopper 901, a chute 902, a buffer spring 903 and an oil groove 904, the oil groove 904 is provided inside the stopper 901, the chute 902 is installed on one side of the stopper 901 away from the main gear shaft 8, and the buffer spring 903 is provided inside the chute 902; the stopper 901 and the fixed groove block 3 form an elastic structure through a buffer spring 903, and the fixed groove block 3 and the stopper 901 form a sliding structure through a sliding groove 902; during operation, when the inside subassembly of universal joint assembly takes place to touch with dog 901, can effectually separate fixed groove piece 3 and the inside subassembly of universal joint assembly through buffer spring 903, can effectually alleviate the collision dynamics between the inside subassembly of universal joint assembly and fixed groove piece 3.

As an embodiment of the present invention, the stopper 901 is formed into an integral structure by an oil groove 904, and the outside of the oil groove 904 is of an arc structure; during operation, lubricating oil can be placed in the oil groove 904, and the lubricating oil can provide antifriction and antiwear functions for components in the universal joint assembly, reduce frictional resistance to save energy, reduce abrasion to prolong mechanical life, and improve economic benefits.

The specific working process is as follows:

when the universal joint assembly works, materials of components of the universal joint assembly can be effectively reduced through the cross section 7, and further the weight of the universal joint assembly can be effectively reduced, so that a light-weight function can be effectively provided for the universal joint assembly, secondly, a reliable fixing mode is provided between the rubber sheath 5 and the fixed groove block 3 through the hoop 4, the entering of external dust can be effectively reduced through the rubber sheath 5, the dust is prevented from being adsorbed on the outer surface of the shaft rod 6, then, the pressing sheet 202 is loosened, the pressing sheet 202 is returned to the initial position through the return spring 203, a pipeline is fixed inside the wire bunching groove 201 through the pressing sheet 202, the wire bunching groove 201 provides a reliable pipe arranging track for a user, finally, lubricating oil can be placed inside the oil groove 904, the lubricating oil can provide an anti-friction and anti-wear function for the components inside the universal joint assembly, and, reduced wear to extend mechanical life;

after a period of use, the abrasive dust generated in the main body 1 can be attracted by the magnetism of the magnetic needle 11, so that the abrasive dust enters the cleaning groove 10 through the first cleaning hole 12, the abrasive dust enters the cleaning groove 10 and then is adhered to the surface of the magnetic needle 11 due to the attraction of the magnetic needle 11, at this time, the screw 16 drives the cleaning plate 14 to slide towards the position of the second cleaning hole 13 by manually rotating the knob clockwise, so that the cleaning ring 19 extrudes and scrapes the abrasive dust adhered to the surface of the magnetic needle 11, the abrasive dust moves and accumulates towards the direction of the second cleaning hole 13, as the abrasive dust accumulated in the second cleaning hole 13 increases, the abrasive dust can be pushed out through the second cleaning hole 13, after part of the abrasive dust is discharged through the second cleaning hole 13, the knob is rotated anticlockwise so that the screw 16 drives the cleaning plate 14 to move towards the first cleaning hole 12, the knob rotates anticlockwise, so that the extrusion ring 21 is inserted into the third cleaning hole 18 and extrudes the cleaning ring 19 in the process that the cleaning plate 14 moves towards the first cleaning hole 12, can strike off the abrasive dust of clearance ring 19 surface adhesion, drop on magnetism needle 11, improve the efficiency of abrasive dust discharge second clearance hole 13, extrusion ring 21 extrudees clearance ring 19 simultaneously, make 19 interior gas of clearance ring pass through the gas pocket blowout, thereby make the abrasive dust remove to second clearance hole 13 direction, simultaneously will block up the abrasive dust that blows off second clearance hole 13 on second clearance hole 13, when clearance ring 19 parcel is on magnetism needle 11, clearance ring 19 receives the extrusion, gas passes through the gas pocket blowout, the improvement is to the cleaning efficiency of 11 surperficial abrasive dusts of magnetism needle.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.