CN214274388U

CN214274388U - Transmission shaft capable of adjusting size of pin slot

Info

Publication number: CN214274388U
Application number: CN202022390139.5U
Authority: CN
Inventors: 何海峰
Original assignee: Kunshan Qianhu Jingji Electromechanical Co ltd
Current assignee: Kunshan Qianhu Jingji Electromechanical Co ltd
Priority date: 2020-10-25
Filing date: 2020-10-25
Publication date: 2021-09-24
Anticipated expiration: 2030-10-25

Abstract

The utility model provides a transmission shaft that can adjust cotter way size relates to transmission shaft technical field, including first transmission shaft and adjusting device, the surface of first transmission shaft is rotated and is connected with the connecting box, one side that first transmission shaft was kept away from to the connecting box is rotated and is connected with the second transmission shaft, the surface slip of first transmission shaft is connected with two round pin pieces, and forms the cotter way between two round pin pieces, the holding tank has been seted up on the surface of first transmission shaft, and the inside of holding tank is provided with adjusting device, adjusting device includes the slide bar. The utility model discloses, through setting up adjusting device, it generally all is fixed knot structure to have solved the transmission shaft in production, but in the time of in-service use, probably has the condition of deviation between transmission shaft and the machine, and different machine positions probably because the fixed and size of cotter way on transmission shaft surface also is fixed, lead to must carry out extra processing to the cotter way of transmission shaft, reduce the problem of transmission shaft usability.

Description

Transmission shaft capable of adjusting size of pin slot

Technical Field

The utility model relates to a transmission shaft technical field especially relates to a transmission shaft that can adjust keyway size.

Background

The transmission shaft is a high-rotating-speed and low-support rotating body, so that the dynamic balance of the transmission shaft is very important. The dynamic balance test is carried out on a general transmission shaft before leaving a factory, and the transmission shaft is adjusted on a balancing machine. In the case of a front engine rear wheel drive vehicle, the transmission is arranged to transmit the rotation of the transmission to the shaft of the final drive, and the transmission can be provided with a plurality of joints, and the joints can be connected through universal joints.

The transmission shaft is generally of a fixed structure in production, but in actual use, deviation between the transmission shaft and a machine may exist, different machine parts may be fixed due to pin grooves on the surface of the transmission shaft and the size of the pin grooves, so that additional processing must be performed on the pin grooves of the transmission shaft, and the usability of the transmission shaft is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a transmission shaft capable of adjusting the size of a pin groove.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a transmission shaft capable of adjusting the size of a pin groove comprises a first transmission shaft and an adjusting device, wherein the surface of the first transmission shaft is rotatably connected with a connecting box, one side of the connecting box, far away from the first transmission shaft, is rotatably connected with a second transmission shaft, the surface of the first transmission shaft is slidably connected with two pin blocks, a pin groove is formed between the two pin blocks, a containing groove is formed in the surface of the first transmission shaft, the adjusting device is arranged in the containing groove, the adjusting device comprises a slide bar, the surface of the slide bar is slidably connected with the containing groove, square holes are formed in two sides of the slide bar, a second clamping block is slidably connected in the square holes, a second spring is fixedly connected to one side, close to each other, of the second clamping block, one end, far away from the second clamping block, of the second spring is fixedly connected with the square holes, and through holes are formed in the top of the second clamping block and the surface of the slide bar, opposite to the second clamping block, and the inside sliding connection of through-hole has same briquetting, the slide bar is connected with the inserted block for the surface sliding of briquetting, the slide bar is connected with the fixed pin for the fixed surface of inserted block, and the briquetting is located between the inserted block and the fixed pin the two, the jack has been seted up on the surface of briquetting, and the briquetting is with the help of jack, inserted block, fixed pin and slide bar looks block, the spout has been seted up on the surface of slide bar, and the surface and the spout sliding connection of round pin piece, the slot hole has been seted up on the surface of round pin piece, and the inside sliding connection of slot hole has first fixture block, the top fixedly connected with pull ring of first fixture block, first fixture block is close to the first spring of one side fixedly connected with of pull ring, the one end and the spout fixed.

Preferably, the briquetting is "U" shape structure, and two arms and the through-hole sliding connection of "U" shape briquetting, two arm bottoms of briquetting all set up to smooth curved surface, and the curved surface of briquetting and the through-hole of second fixture block contact.

Preferably, clamping grooves are formed in two sides of the first transmission shaft accommodating groove, and the sliding rod is clamped with the first transmission shaft through the second clamping block and the clamping grooves.

Preferably, the bottom of the slide bar is uniformly provided with a limiting groove, and the pin block is clamped with the slide bar by means of a first clamping block, the limiting groove.

Preferably, the surface of the first transmission shaft inside the connecting box is provided with an auxiliary device, the auxiliary device comprises a second turntable, the surface of the second turntable is fixedly connected with the first transmission shaft, one side of the connecting box, which is close to the first transmission shaft, is rotatably connected with a connecting column, the surface of the connecting column is fixedly connected with the first turntable, the first turntable and the second turntable are connected through belt transmission, the port of the connecting column, which is close to the second turntable, is fixedly connected with a telescopic rod, one end of the telescopic rod, which is far away from the connecting column, is fixedly connected with a round block, the surface of the telescopic rod is sleeved with a third spring, two ends of the third spring are respectively fixedly connected with the connecting column and the round block, one side of the connecting box, which is far away from the connecting column, is rotatably connected with a sleeve, the inner wall of the sleeve is slidably connected with the second transmission shaft, and the port of the second transmission shaft, which is located inside the connecting box, is fixedly connected with a gear, the bolt is inserted on the surface of the sleeve, round holes are uniformly formed in the surface of the second transmission shaft, and the second transmission shaft is clamped with the bolt, the round holes and the sleeve.

Preferably, a tooth socket is formed in one side, close to the gear, of the round block, and the gear is clamped with the round block through the tooth socket.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. in the utility model, through arranging the adjusting device, when the pin groove on the surface of the transmission shaft needs to be adjusted, the pin block is firstly adjusted according to the required position, the position of the pin groove is pulled out, the two second clamping blocks can move inwards under the action of the second spring, the two second clamping blocks are separated from the limitation of the clamping groove of the inner wall of the accommodating groove, at the moment, the whole sliding rod can move in the accommodating groove, thereby the position of the pin groove is adjusted, the pressing block is pressed after the adjustment is finished, the pressing block enables the two second clamping blocks to move out from the inner part of the square hole and is mutually clamped with the clamping groove, the pressing block is fixed by the pin block inserted into the pin block, then the size of the pin groove is adjusted according to the size, the pull ring is pulled upwards, the pull ring can drive the first clamping block to move upwards, the first clamping block is separated from the limiting groove of the bottom wall of the sliding rod, the distance between the two pin blocks can be adjusted, thereby the size of the pin groove is adjusted, after adjusting, loosen the pull ring, under the effect of first spring, the fixture block is fixed with the spacing groove again, thereby reach the purpose of adjusting the cotter way size, it generally all is fixed knot structure when production to have solved the transmission shaft, but in the in-service use, there may exist the condition of deviation between transmission shaft and the machine, different machine positions probably because the cotter way on transmission shaft surface is fixed and the size of cotter way also is fixed, lead to carrying out extra processing to the cotter way of transmission shaft, reduce the problem of transmission shaft usability.

2. The utility model discloses in, through setting up auxiliary device, when the transmission shaft needs to carry out the regulation of length, take out the bolt, select suitable round hole on the round hole of second transmission shaft, it fixes to recycle the bolt, when removing the second transfer line, the disk is all the time with the inseparable block of gear under the effect of third spring, thereby when making first transmission shaft pivoted, it rotates to drive the second carousel, the second carousel drives first carousel through the belt and rotates, first carousel drives the spliced pole and rotates, the spliced pole drives the disk and rotates, the disk drives the second transfer line through the gear and rotates, thereby reach the length of adjusting whole transmission shaft in the small range, and be detachable connection between first transmission shaft and the second transmission shaft, the convenience is maintained the junction and the change of part.

Drawings

Fig. 1 is a schematic perspective view of a transmission shaft capable of adjusting the size of a pin slot according to the present invention;

fig. 2 is a schematic view of a first transmission shaft of a transmission shaft capable of adjusting the size of a pin slot according to the present invention;

fig. 3 is a schematic view of an internal structure of a first transmission shaft of a transmission shaft capable of adjusting the size of a pin slot according to the present invention;

fig. 4 is an exploded view of fig. 3 of a transmission shaft capable of adjusting the size of a pin slot according to the present invention;

fig. 5 is a schematic structural diagram of an auxiliary device of a transmission shaft capable of adjusting the size of a pin slot.

Illustration of the drawings: 1. a first drive shaft; 2. a connecting box; 3. a second drive shaft; 4. a pin block; 5. an adjustment device; 51. a pull ring; 52. a first spring; 53. a first clamping block; 54. briquetting; 55. inserting a block; 56. a second fixture block; 57. a second spring; 58. a slide bar; 6. an auxiliary device; 61. a sleeve; 62. a gear; 63. a round block; 64. a third spring; 65. connecting columns; 66. a first turntable; 67. a second turntable.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1-5, the utility model provides a transmission shaft that can adjust keyway size, including first transmission shaft 1 and adjusting device 5, the surface rotation of first transmission shaft 1 is connected with connecting box 2, and one side that first transmission shaft 1 was kept away from to connecting box 2 rotates and is connected with second transmission shaft 3, and the sliding surface of first transmission shaft 1 is connected with two round pin pieces 4, and forms the keyway between two round pin pieces 4.

The specific arrangement and function of the adjusting device 5 and the auxiliary device 6 will be described in detail below.

As shown in fig. 3 and 4, the surface of the first transmission shaft 1 is provided with a receiving groove, and the inside of the receiving groove is provided with an adjusting device 5, the adjusting device 5 includes a sliding rod 58, the surface of the sliding rod 58 is slidably connected with the receiving groove, both sides of the sliding rod 58 are provided with square holes, and the inside of the square hole is slidably connected with a second clamping block 56, one side of the second clamping block 56 close to each other is fixedly connected with a second spring 57, one end of the second spring 57 far away from the second clamping block 56 is fixedly connected with the square hole, the top of the second clamping block 56 and the surface of the sliding rod 58 relative to the second clamping block 56 are both provided with through holes, and the inside of the through holes is slidably connected with a same pressing block 54, the surface of the sliding rod 58 relative to the pressing block 54 is slidably connected with an inserting block 55, the surface of the sliding rod 58 relative to the inserting block 55 is fixedly connected with a fixing pin, and the pressing block 54 is located between the inserting block 55 and the fixing pin, the surface of the pressing block 54 is provided with an insertion hole, the pressing block 54 is clamped with the sliding rod 58 by the aid of the jack, the inserting block 55, the fixing pin and the sliding rod 58, the sliding groove is formed in the surface of the sliding rod 58, the surface of the pin block 4 is connected with the sliding groove in a sliding manner, the surface of the pin block 4 is provided with a long hole, the inside of the long hole is connected with the first clamping block 53 in a sliding manner, the top of the first clamping block 53 is fixedly connected with the pull ring 51, one side, close to the pull ring 51, of the first clamping block 53 is fixedly connected with the first spring 52, one end, far away from the first clamping block 53, of the first spring 52 is fixedly connected with the sliding groove, the pressing block 54 is of a U-shaped structure, two arms of the U-shaped pressing block 54 are connected with the through hole in a sliding manner, the bottom ends of the two arms of the pressing block 54 are both provided with smooth curved surfaces, the curved surface of the pressing block 54 is in contact with the through hole of the second clamping block 56, clamping grooves are formed in two sides of the accommodating groove of the first transmission shaft 1, the sliding rod 58 is clamped with the second clamping block 56, the bottom of the sliding rod 58 is uniformly provided with limiting grooves, and the pin block 4 is clamped with the slide rod 58 by the first clamping block 53, the limiting groove.

The whole adjusting device 5 achieves the effect that by arranging the adjusting device 5, when the pin groove on the surface of the transmission shaft needs to be adjusted, the position of the pin groove is adjusted according to the required position, the inserting block 55 is pulled out, the two second clamping blocks 56 can move inwards under the action of the second spring 57, so that the two second clamping blocks 56 are separated from the limitation of the clamping grooves on the inner wall of the accommodating groove, at the moment, the whole sliding rod 58 can move in the accommodating groove, so as to adjust the position of the pin groove, the pressing block 54 is pressed after the adjustment is finished, the pressing block 54 enables the two second clamping blocks 56 to move out from the square hole and be clamped with the clamping grooves, the pressing block 54 is fixed by inserting the inserting block 55 into the pin block 4, then the pull ring 51 is pulled upwards according to adjust the size of the pin groove, the pull ring 51 can drive the first clamping block 53 to move upwards, so that the first clamping block 53 is separated from the limiting groove on the bottom wall of the sliding rod 58, can adjust the distance between two round pin pieces 4 this moment, thereby adjust the size of cotter way, adjust the back, loosen pull ring 51, under the effect of first spring 52, the fixture block is fixed with the spacing groove again, thereby reach the purpose of adjusting cotter way size, it is generally fixed knot structure when producing to have solved the transmission shaft, but in the time of in-service use, there may be the condition of deviation between transmission shaft and the machine, different machine positions may be because the cotter way on transmission shaft surface is fixed and the size of cotter way is also fixed, lead to additionally processing to the cotter way of transmission shaft, reduce the problem of transmission shaft usability.

As shown in fig. 1 and 5, an auxiliary device 6 is disposed on the surface of the first transmission shaft 1 inside the connection box 2, the auxiliary device 6 includes a second rotary table 67, the surface of the second rotary table 67 is fixedly connected with the first transmission shaft 1, a connection column 65 is rotatably connected to one side of the connection box 2 close to the first transmission shaft 1, a first rotary table 66 is fixedly connected to the surface of the connection column 65, the first rotary table 66 and the second rotary table 67 are connected through a belt transmission, a telescopic rod is fixedly connected to the port of the connection column 65 close to the second rotary table 67, a round block 63 is fixedly connected to one end of the telescopic rod far from the connection column 65, a third spring 64 is sleeved on the surface of the telescopic rod, two ends of the third spring 64 are respectively fixedly connected with the connection column 65 and the round block 63, a sleeve 61 is rotatably connected to one side of the connection box 2 far from the connection column 65, and the inner wall of the sleeve 61 is slidably connected with the second transmission shaft 3, and second transmission shaft 3 is located the inside port fixedly connected with gear 62 of connecting box 2, and the surface of sleeve 61 is inserted and is equipped with the bolt, and the round hole has evenly been seted up on the surface of second transmission shaft 3, and second transmission shaft 3 with the help of bolt, round hole and sleeve 61 looks block, and the tooth's socket has been seted up to one side that circle piece 63 is close to gear 62, and gear 62 passes through tooth's socket and circle piece 63 looks block.

The whole auxiliary device 6 achieves the effect that by arranging the auxiliary device 6, when the length of the transmission shaft needs to be adjusted, the bolt is drawn out, a proper round hole is selected on the round hole of the second transmission shaft 3 and then fixed by a bolt, when the second transmission rod is moved, the round block 63 is always tightly clamped with the gear 62 under the action of the third spring 64, when the first transmission shaft 1 rotates, the second rotary table 67 is driven to rotate, the second rotary table 67 drives the first rotary table 66 to rotate through a belt, the first rotary table 66 drives the connecting column 65 to rotate, the connecting column 65 drives the round block 63 to rotate, the round block 63 drives the second transmission rod to rotate through the gear 62, thereby reach the length of adjusting whole transmission shaft in the minizone, be detachable connection between first transmission shaft 1 and the second transmission shaft 3 moreover, conveniently maintain the junction and the change of part.

The whole working principle is that by arranging the adjusting device 5, when the pin groove on the surface of the transmission shaft needs to be adjusted, the position of the pin groove is adjusted according to the required position, the inserting block 55 is pulled out, the two second clamping blocks 56 can move inwards under the action of the second spring 57, the two second clamping blocks 56 are separated from the limitation of the clamping grooves on the inner wall of the accommodating groove, the whole sliding rod 58 can move in the accommodating groove at the moment, so as to adjust the position of the pin groove, the pressing block 54 is pressed after the adjustment is finished, the pressing block 54 enables the two second clamping blocks 56 to move out from the square hole and be clamped with the clamping grooves, the pressing block 54 is fixed by inserting the inserting block 55 into the pin block 4, then the pull ring 51 is pulled upwards according to the size of the pin groove, the pull ring 51 can drive the first clamping block 53 to move upwards, so that the first clamping block 53 is separated from the limiting groove on the bottom wall of the sliding rod 58, and the distance between the two pin blocks 4 can be adjusted at the moment, therefore, the size of the pin slot is adjusted, after the adjustment is finished, the pull ring 51 is loosened, the fixture block is fixed with the limiting slot again under the action of the first spring 52, the purpose of adjusting the size of the pin slot is achieved, the problem that the transmission shaft is generally of a fixed structure in production, but in actual use, the deviation between the transmission shaft and a machine can exist, different machine parts can cause that the pin slot of the transmission shaft needs to be additionally processed due to the fact that the pin slot on the surface of the transmission shaft is fixed and the size of the pin slot is also fixed, and the usability of the transmission shaft is reduced is solved, through the arrangement of the auxiliary device 6, when the length of the transmission shaft needs to be adjusted, the bolt is drawn out, a proper round hole is selected on the round hole of the second transmission shaft 3 and then fixed by the bolt, when the second transmission shaft is moved, the round block 63 is tightly clamped with the gear 62 all the time under the action of the third spring 64, thereby when making first transmission shaft 1 pivoted, drive second carousel 67 and rotate, second carousel 67 drives first carousel 66 through the belt and rotates, first carousel 66 drives spliced pole 65 and rotates, spliced pole 65 drives the disk 63 and rotates, disk 63 drives the second transfer line through gear 62 and rotates, thereby reach the length of adjusting whole transmission shaft in the minizone, and be detachable connection between first transmission shaft 1 and the second transmission shaft 3, the convenience is maintained the junction and the change of part.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. A transmission shaft capable of adjusting the size of a pin slot comprises a first transmission shaft (1) and an adjusting device (5), and is characterized in that: the surface of the first transmission shaft (1) is rotatably connected with a connecting box (2), one side, far away from the first transmission shaft (1), of the connecting box (2) is rotatably connected with a second transmission shaft (3), the surface of the first transmission shaft (1) is connected with two pin blocks (4) in a sliding manner, a pin groove is formed between the two pin blocks (4), an accommodating groove is formed in the surface of the first transmission shaft (1), an adjusting device (5) is arranged in the accommodating groove, the adjusting device (5) comprises a sliding rod (58), the surface of the sliding rod (58) is connected with the accommodating groove in a sliding manner, square holes are formed in two sides of the sliding rod (58), a second clamping block (56) is connected with the inside of each square hole in a sliding manner, a second spring (57) is fixedly connected to one side, close to each other, of the second clamping block (56), and one end, far away from the second clamping block (56), is fixedly connected with the square holes, the top of the second clamping block (56) and the surface of the sliding rod (58) opposite to the second clamping block (56) are both provided with through holes, the inner parts of the through holes are connected with the same pressing block (54) in a sliding manner, the surface of the sliding rod (58) opposite to the pressing block (54) is connected with an inserting block (55) in a sliding manner, the surface of the sliding rod (58) opposite to the inserting block (55) is fixedly connected with a fixed pin, the pressing block (54) is positioned between the inserting block (55) and the fixed pin, the surface of the pressing block (54) is provided with an inserting hole, the pressing block (54) is clamped with the sliding rod (58) through the inserting hole, the inserting block (55), the fixed pin, the surface of the sliding rod (58) is provided with a sliding groove, the surface of the pin block (4) is connected with the sliding groove in a sliding manner, the surface of the pin block (4) is provided with a long hole, the inner part of the long hole is connected with a first clamping block pull ring (53) in a sliding manner, and the top of the first clamping block (53) is fixedly connected with a pull ring (51), one side, close to the pull ring (51), of the first clamping block (53) is fixedly connected with a first spring (52), and one end, far away from the first clamping block (53), of the first spring (52) is fixedly connected with the sliding groove.

2. A drive shaft capable of adjusting pin slot size as recited in claim 1, wherein: the pressing block (54) is of a U-shaped structure, two arms of the U-shaped pressing block (54) are connected with the through hole in a sliding mode, the bottom ends of the two arms of the pressing block (54) are both set to be smooth curved surfaces, and the curved surfaces of the pressing block (54) are in contact with the through hole of the second clamping block (56).

3. A drive shaft capable of adjusting pin slot size as recited in claim 1, wherein: clamping grooves are formed in two sides of the first transmission shaft (1) accommodating groove, and the sliding rod (58) is clamped with the first transmission shaft (1) through the second clamping block (56) and the clamping grooves.

4. A drive shaft capable of adjusting pin slot size as recited in claim 1, wherein: the bottom of the sliding rod (58) is uniformly provided with a limiting groove, and the pin block (4) is clamped with the sliding rod (58) by means of the first clamping block (53) and the limiting groove.

5. A drive shaft capable of adjusting pin slot size as recited in claim 1, wherein: first transmission shaft (1) is located inside surface of connecting box (2) and is provided with auxiliary device (6), auxiliary device (6) include second carousel (67), the surface and first transmission shaft (1) fixed connection of second carousel (67), one side rotation that connecting box (2) are close to first transmission shaft (1) is connected with spliced pole (65), the fixed surface of spliced pole (65) is connected with first carousel (66), connect through belt transmission between the two of first carousel (66) and second carousel (67), port fixedly connected with telescopic link that spliced pole (65) are close to spliced pole (65) is kept away from to the telescopic link one end fixedly connected with circle piece (63) of spliced pole (65) to the surface cover of telescopic link has third spring (64), the both ends of third spring (64) respectively with spliced pole (65), Circle piece (63) fixed connection, one side rotation that spliced pole (65) were kept away from in connecting box (2) is connected with sleeve (61), the inner wall and second transmission shaft (3) sliding connection of sleeve (61), and second transmission shaft (3) are located inside port fixedly connected with gear (62) of connecting box (2), the surface of sleeve (61) is inserted and is equipped with the bolt, the round hole has evenly been seted up on the surface of second transmission shaft (3), and second transmission shaft (3) are with the help of bolt, round hole and sleeve (61) looks block.

6. A drive shaft capable of adjusting pin slot size as recited in claim 5, wherein: tooth grooves are formed in one side, close to the gear (62), of the round block (63), and the gear (62) is clamped with the round block (63) through the tooth grooves.