CN211731043U

CN211731043U - Tractor transmission device

Info

Publication number: CN211731043U
Application number: CN202020390839.1U
Authority: CN
Inventors: 李占勇; 李占虎
Original assignee: Hebei Zhiwei Tongchuang Power Technology Co ltd
Current assignee: Hebei Zhiwei Tongchuang Power Technology Co ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2020-10-23
Anticipated expiration: 2030-03-25

Abstract

The utility model discloses a tractor traction machine transmission belongs to tractor traction machine transmission technical field. The tractor comprises a driving shaft and a transmission shaft, wherein a driving shaft transmission part is arranged on the driving shaft, a transmission shaft transmission part is arranged on the transmission shaft, a transmission connection structure is arranged between the driving shaft transmission part and the transmission shaft transmission part, the driving shaft comprises a tractor half shaft, the inner end of the tractor half shaft is in transmission connection with a power output shaft of a tractor speed change gear box, and the outer end of the tractor half shaft is connected with a tractor driving wheel hub through a tractor; the outer end of the transmission shaft is supported on the frame through a transmission shaft bearing, a transmission shaft connecting hole is formed in the tractor gearbox body, and the inner end of the transmission shaft is coaxially fixed with a tractor gearbox shaft through the transmission shaft connecting hole so as to transmit power borne by the transmission shaft to the tractor gearbox shaft. The device has the characteristics of wide rotating speed adjusting range, high safety and reliability, convenience in installation and maintenance and the like.

Description

Tractor transmission device

Technical Field

The utility model relates to a tractor traction machine transmission technical field.

Background

When the traction operation machine performs traction operation, the traction speed is adjusted in a large range according to the site construction progress and conditions, for example, a higher traction speed can be adopted at the initial stage of cable erection to improve the construction efficiency; the brake is particularly important at the moment that the reverse tension of the cable is increased as the laying progress gradually approaches to the cable in place, so that safety accidents caused by the reverse dragging of the cable when the traction operation machine loses power are prevented, and serious consequences can be caused if the brake fails; when the cable is close to in position, the cable posture is adjusted to enter a critical period, and the lower traction speed is needed so as to adjust the cable posture, so that the construction quality is guaranteed.

In the existing tractor transmission device, a drive shaft for power output of a tractor adopts a tractor rear tail shaft or a tractor gearbox secondary shaft, the tractor rear tail shaft is adopted as the drive shaft, the rotating speed of the tractor rear tail shaft is not changed in speed through a gearbox gear, the torque is small, and the rotating speed is only controlled by the rotating speed of an engine, so that the rotating speed range transmitted to the tractor is single, the requirement of the tractor for large-range adjustment of the traction speed during traction operation is not facilitated, and the operation process of laying a cable is difficult; adopt tractor gearbox two axles as the drive shaft, this kind of output mode is because accessible change gear box gear carries out variable speed operation to output rotational speed, can satisfy and pull the operation machine and to the requirement of traction speed when pulling the operation, nevertheless because the drive shaft is got from in the gearbox gear box, need reequip tractor change gear box, need assemble main drive gear in tractor change gear box, carry out dismouting change to tractor change gear box, the operation degree of difficulty is big, and produce the influence to tractor change gear box original performance, in case damage maintenance is very difficult.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a tractor transmission, it has rotational speed adjustment range extensively, and fail safe nature is high, characteristics such as installation and maintenance of being convenient for.

In order to solve the technical problem, the utility model discloses the technical scheme who takes is:

a tractor traction machine transmission device comprises a driving shaft which is arranged on a tractor and used for power output of the tractor and a transmission shaft which is arranged on the tractor and used for power input of the tractor, a driving shaft transmission part is arranged on the driving shaft, a transmission shaft transmission part is arranged on the transmission shaft, a transmission connection structure is arranged between the driving shaft transmission part and the transmission shaft transmission part, for transmitting the output power of the driving shaft to the transmission shaft, the driving shaft comprises a tractor half shaft, the inner end of the tractor half shaft is connected with the power output shaft of the tractor speed change gear box in a transmission way, the tractor speed change gear box is used for transmitting power output by the tractor speed change gear box to a tractor half shaft, and the outer end of the tractor half shaft is connected with a tractor driving wheel hub through a tractor separation self-locking device so as to control whether the power output by the tractor half shaft is transmitted to a tractor driving wheel; the outer end of the transmission shaft is supported on the frame through a transmission shaft bearing, a transmission shaft connecting hole is formed in the end part, located on one shaft of the tractor gearbox, of the tractor gearbox body, and the inner end of the transmission shaft is coaxially fixed with the tractor gearbox shaft through the transmission shaft connecting hole so as to transmit power borne by the transmission shaft to the tractor gearbox shaft.

The utility model discloses the further improvement lies in:

the transmission shaft is arranged in parallel with the half shaft of the tractor, the transmission part of the transmission shaft is a transmission shaft chain wheel, and the transmission connecting structure is a transmission chain which connects the transmission shaft chain wheel and the transmission shaft chain wheel together in a meshing manner.

The transmission shaft is arranged in parallel with the half shaft of the tractor, the transmission part of the transmission shaft is a transmission shaft gear, and the transmission connecting structure is formed by connecting the transmission shaft gear and the transmission shaft gear in a meshing manner.

The tractor separation self-locking device comprises a half shaft head connecting part, a hub connector and a meshing connector 2;

the half axle spindle nose connecting portion is located the outer tip of tractor semi-axis, and its structure is: a plurality of shaft head clamping grooves are formed in the shaft head part of the ring half shaft at intervals in the circumferential direction, each shaft head clamping groove is formed in the axial direction from an opening in the end part of a shaft head, and a shaft head threaded connecting hole is formed in the end face of the shaft head;

the hub connector comprises a hub connecting flange and a meshing connecting part, the meshing connecting part is provided with a shaft hole, a plurality of meshing clamping grooves are circumferentially arranged on the outer end face of the ring shaft hole at intervals, the inner end of the meshing connecting part is fixedly connected with the outer end of the flange, so that the flange hole of the hub connecting flange and the shaft hole arranged on the meshing connecting part are communicated together to form a half shaft adapting hole, and the flange screw hole of the hub connecting flange is used for being in threaded connection with a hub;

the meshed connector is provided with a shaft head assembling hole, a meshed connecting structure and a meshed connector screw hole; the diameter of the axle head assembling hole is matched with that of the axle head connecting part of the half axle, a plurality of strip-shaped axle head clamping blocks protruding towards the axle center are arranged on the inner wall of the annular axle head assembling hole at intervals in the circumferential direction, each axle head clamping block is axially arranged, and each axle head clamping block corresponds to each axle head clamping groove of the axle head connecting part of the half axle one by one respectively, so that the axle head connecting part of the half axle is inserted into the axle head assembling hole, and the axle head connecting part of the half axle is fixed with the meshing connector in the circumferential direction by embedding each axle head clamping block into the corresponding axle head; a plurality of meshing fixture blocks are circumferentially arranged at intervals on the inner end surface of the ring shaft head assembling hole, each meshing fixture block respectively corresponds to each meshing clamping groove of the hub connector one by one, and each meshing fixture block is embedded into each corresponding meshing clamping groove, so that the meshing connector and the hub connector are circumferentially fixed together; the screw hole of the meshing connector is arranged at the outer end part of the shaft head assembly hole and corresponds to the threaded connecting hole of the shaft head arranged on the end surface of the shaft head so as to be used for fixedly connecting the meshing connector with the shaft head connecting part of the half shaft through a bolt.

A plurality of shaft head clamping grooves are formed in the circumferential direction of the half shaft head part at equal intervals, and the cross sections of the shaft head clamping grooves are the same, so that the shaft head clamping grooves of the half shaft head part are matched with shaft head clamping blocks of the meshing connector, and the installation angles of the shaft head clamping grooves and the shaft head clamping blocks are convenient to adjust.

A plurality of meshing clamping grooves are formed in the circumferential direction of the outer end face of the annular shaft hole at equal intervals, and the cross sections of the meshing clamping grooves are the same, so that the meshing clamping grooves of the hub connector are matched with the meshing clamping blocks of the meshing connector, and the installation angles of the meshing clamping grooves and the meshing clamping blocks are convenient to adjust.

The transmission shaft and a shaft of the tractor gearbox are of an integrated structure.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:

the tractor half shaft is the shaft with the largest output torque of the whole tractor and the shaft with the largest speed regulating gear, and by taking the tractor half shaft as the driving shaft of the power output of the tractor, the traction force of the existing traction operation machine is doubled, the traction speed is randomly switched from one meter per minute to one hundred meters per minute, the use space and the working efficiency of the traction operation machine are greatly improved, in addition, a set of complete braking system is arranged on the half shaft of the tractor, the original braking system of the tractor can be directly adopted to provide braking for the tractor by using the half shaft of the tractor as a driving shaft for power output of the tractor, therefore, the safety of the traction operation machine during construction is improved, accidents caused by brake failure of the traction operation machine are avoided, the tractor half shaft is used as a driving shaft, and the driving shaft chain wheel is assembled on the tractor half shaft and is driven by the chain so as to be convenient for maintenance of construction operators. Compared with the existing tractor rear tail shaft or tractor gearbox two shafts as driving shafts, the tractor rear tail shaft driving device has the characteristics of wide rotating speed adjusting range, high safety and reliability, convenience in installation and maintenance and the like.

The utility model provides a tractor separation self-lock device passes through the wheel hub flange and the wheel hub fixed connection of wheel hub connector, supports the axletree on the wheel through the semi-axis adaptation hole, and each spindle nose fixture block that is equipped with the spindle nose pilot hole through the meshing connector inlays and imbeds corresponding each spindle nose draw-in groove to fix meshing connector and wheel hub connector circumference together; the meshing connector and the hub connector are circumferentially fixed together by embedding each meshing clamping block into each corresponding meshing clamping groove; the meshing connector is fixedly connected with the axle head connecting part of the half axle through a bolt. Guaranteed that the atress is even when using tractor work, the bearing capacity is bigger, can both relax safe realization tractor auto-lock and separation under any construction bad border, avoided operating personnel's safety and the unclear potential safety hazard of separation when using, original tractor semi-axis is not destroyed to this device, and the bearing capacity of axle does not receive any influence.

It has the characteristics of safety, reliability, convenient operation, low cost and the like.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of a separation self-locking device of the tractor in FIG. 1

FIG. 3 is a schematic view of the configuration of the axle stub shaft connections of FIG. 2;

FIG. 4 is a right side view of FIG. 3;

FIG. 5 is a schematic view of the hub connector of FIG. 2;

FIG. 6 is a cross-sectional view A-A of FIG. 5;

FIG. 7 is a schematic view of the construction of the ratcheting connector of FIG. 2;

fig. 8 is a sectional view a-a of fig. 7.

In the drawings: 1. a half shaft head connecting part; 1-1, connecting a shaft head thread through a hole; 1-2, shaft head clamping grooves; 2. a ratcheting connector; 2-1, assembling holes for the shaft heads; 2-2, a shaft head fixture block; 2-3, meshing the fixture blocks; 2-4, meshing the connector screw hole; 3. a hub; 4. a tractor half shaft; 5. a hub connecting flange; 5-1, flange screw holes; 6. a ratcheting joint; 6-1. shaft hole; 6-2, meshing the clamping grooves; 7. a drive shaft; 8. a drive shaft bearing; 9. a stabilizing sleeve; 10. a tractor gearbox shaft; 11. a shaft speed change gear of a tractor gearbox; 12. a tractor gearbox housing; 13. a shaft bearing of a tractor gearbox; 14. a drive shaft sprocket; 15. a transmission shaft chain wheel.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description and the description of the attached drawings, and the specific connection mode of each part adopts the conventional means of mature bolts, rivets, welding, sticking and the like in the prior art, and the detailed description is not repeated.

Example 1

As can be seen from the embodiments shown in fig. 1 to 8, the present embodiment comprises a drive shaft for power output of the tractor arranged on the tractor and a transmission shaft 7 for power input of the tractor arranged on the tractor, a driving shaft transmission part is arranged on the driving shaft, a transmission shaft transmission part is arranged on the transmission shaft 7, a transmission connection structure is arranged between the driving shaft transmission part and the transmission shaft transmission part, for transmitting the output power of a driving shaft to a transmission shaft 7, the driving shaft comprises a tractor half shaft 4, the inner end of the tractor half shaft 4 is in transmission connection with the power output shaft of a tractor speed change gear box (the prior art and not shown in the figure), the tractor speed change gear box is used for transmitting power output by the tractor speed change gear box to a tractor half shaft 4, the outer end of the tractor half shaft 4 is connected with a tractor driving wheel hub 3 through a tractor separation self-locking device, and whether the power output by the tractor half shaft 4 is transmitted to a tractor driving wheel is controlled; the outer end of the transmission shaft 7 is supported on a frame (not shown in the figure) through a transmission shaft bearing 8, a transmission shaft connecting hole is formed in the end part, located on a first tractor transmission case shaft 10, of the tractor transmission case body 12, and the inner end of the transmission shaft 7 is coaxially fixed with the first tractor transmission case shaft 10 through the transmission shaft connecting hole so as to be used for transmitting power borne by the transmission shaft 7 to the first tractor transmission case shaft 10.

The transmission shaft 7 is arranged in parallel with the tractor half shaft 4, the transmission part of the transmission shaft is a transmission shaft chain wheel 14, the transmission part of the transmission shaft is a transmission shaft chain wheel 15, and the transmission connecting structure is a transmission chain which connects the transmission shaft chain wheel 14 and the transmission shaft chain wheel 15 together in a meshing manner.

The tractor separation self-locking device comprises a half shaft head connecting part 1, a hub connector and a meshing connector 2;

half axle spindle nose connecting portion 1 is located the outer tip of tractor semi-axis 4, and its structure is: a plurality of shaft head clamping grooves 1-2 are arranged at intervals in the circumferential direction at the shaft head part of the ring half shaft, each shaft head clamping groove 1-2 is axially formed by an opening at the end part of a shaft head, and a shaft head threaded connecting hole 1-1 is formed in the end surface of the shaft head;

the hub connector comprises a hub connecting flange 5 and a meshing connecting portion 6, the meshing connecting portion 6 is provided with a shaft hole 6-1, a plurality of meshing clamping grooves 6-2 are circumferentially arranged on the outer end face of the ring shaft hole 6-1 at intervals, the inner end of the meshing connecting portion 6 is fixedly connected with the outer end of the flange 5, so that the flange hole of the hub connecting flange 5 is communicated with the shaft hole 6-1 formed in the meshing connecting portion 6 to form a half shaft matching hole, and a flange screw hole 5-1 of the hub connecting flange 5 is used for being in threaded connection with a hub;

the meshing connector 2 is provided with a shaft head assembling hole 2-1, a meshing connecting structure and a meshing connector screw hole 2-4; the diameter of the axle head assembly hole 2-1 is matched with that of the axle head connecting part 1 of the half axle, a plurality of strip-shaped axle head clamping blocks 2-2 protruding towards the axle center are circumferentially arranged at intervals on the inner wall of the annular axle head assembly hole 2-1, each axle head clamping block 2-2 is axially arranged, each axle head clamping block 2-2 is respectively in one-to-one correspondence with each axle head clamping groove 1-2 of the axle head connecting part 1 of the half axle, so that the axle head connecting part 1 of the half axle is inserted into the axle head assembly hole 2-1, and each axle head clamping block 2-2 is embedded into each corresponding axle head clamping groove 1-2, so that the axle head connecting part 1 of the half axle and the meshing connector; a plurality of meshing fixture blocks 2-3 are circumferentially arranged at intervals on the inner end surface of the ring shaft head assembly hole 2-1, each meshing fixture block 2-3 is respectively in one-to-one correspondence with each meshing clamping groove 6-2 of the hub connector, and each meshing fixture block 2-3 is embedded into each corresponding meshing clamping groove 6-2, so that the meshing connector 2 and the hub connector are circumferentially fixed together; the meshed connector screw hole 2-4 is arranged at the outer end part of the shaft head assembling hole 2-1 and corresponds to a shaft head threaded connecting hole 1-1 arranged on the end face of the shaft head so as to be used for fixedly connecting the meshed connector 2 with the half shaft head connecting part 1 through a bolt.

A plurality of shaft head clamping grooves 1-2 are formed in the circumferential direction of the shaft head part of the ring half shaft at equal intervals, and the sections of the shaft head clamping grooves 1-2 are the same, so that the shaft head clamping grooves 1-2 in the shaft head part of the ring half shaft are matched with the shaft head clamping blocks 2-2 in the meshing connector 2, and the installation angles of the shaft head clamping grooves 1-2 and the shaft head clamping blocks 2-2 are convenient to adjust.

A plurality of meshing clamping grooves 6-2 are formed in the outer end face of the annular shaft hole 6-1 at equal intervals in the circumferential direction, and the sections of the meshing clamping grooves 6-2 are identical, so that the meshing clamping grooves 6-2 of the hub connector are matched with the meshing clamping blocks 2-3 of the meshing connector 2, and the installation angles of the meshing clamping grooves 6-2 and the meshing clamping blocks 2-3 are convenient to adjust.

The transmission shaft 7 and a shaft 10 of the tractor gearbox are of an integral structure.

Example 2

The difference between this example and example 1 is: the transmission shaft 7 is arranged in parallel with the tractor half shaft 4, the transmission part of the drive shaft is a drive shaft gear, the transmission part of the transmission shaft is a transmission shaft gear, and the transmission connection structure is that the drive shaft gear is meshed with the transmission shaft gear (not shown in the figure).

The use method of the tractor traction machine separation self-locking device comprises the following steps:

firstly, fixing a hub connector on the outer side of a hub, aligning a flange hole of a hub connecting flange 5 with a hub hole of the hub, and fixedly connecting the hub connecting flange 5 with the hub through a flange screw hole 5-1; then, the half shaft head connecting part 1 penetrates through a half shaft matching hole of a hub connector from a wheel axle hole of a hub, then the half shaft head connecting part 1 and a wheel are fixed together through a meshing connector 2, the half shaft head connecting part 1 is inserted into a shaft head assembling hole 2-1, and is embedded into corresponding shaft head clamping grooves 1-2 through shaft head clamping blocks 2-2, so that the half shaft head connecting part 1 and the meshing connector 2 are circumferentially fixed together, and a bolt penetrates through a meshing connector screw hole 2-4 and is screwed into the shaft head threaded connecting hole 1-1, so that the meshing connector 2 and the half shaft head connecting part 1 are fixedly connected together, and the power of a tractor is transmitted to the wheel through a half shaft.

When the power output of the tractor is separated from the wheels, the bolt is screwed out of the threaded connecting hole 1-1 of the shaft head, and the meshing connector 2 is detached.

The using method of the device comprises the following steps:

the tractor power output is separated from wheels by the tractor separation self-locking device after the tractor is in place, when the tractor is used for traction operation, the speed of the tractor can be adjusted in a large range by carrying out speed change operation on the tractor half-shaft rotating speed through the tractor speed change gear box gears according to the requirements of site construction progress and conditions, and the speed adjusting gears are tractor gear positions multiplied by the tractor gear positions, namely, each gear of the tractor can carry out corresponding speed change aiming at the tractor half-shaft rotating speed of each gear of the tractor.

Claims

1. A tractor traction machine transmission device comprises a driving shaft arranged on a tractor and used for power output of the tractor and a transmission shaft (7) arranged on the tractor and used for power input of the tractor, wherein a driving shaft transmission part is arranged on the driving shaft, a transmission shaft transmission part is arranged on the transmission shaft (7), a transmission connection structure is arranged between the driving shaft transmission part and the transmission shaft transmission part and used for transmitting the driving shaft output power to the transmission shaft (7), and the tractor traction machine transmission device is characterized in that: the driving shaft comprises a tractor half shaft (4), the inner end of the tractor half shaft (4) is in transmission connection with a power output shaft of a tractor speed change gear box so as to transmit power output by the tractor speed change gear box to the tractor half shaft (4), and the outer end of the tractor half shaft (4) is connected with a tractor driving wheel hub (3) through a tractor separation self-locking device so as to control whether the power output by the tractor half shaft (4) is transmitted to a tractor driving wheel; the outer end of the transmission shaft (7) is supported on the rack through a transmission shaft bearing (8), a transmission shaft connecting hole is formed in the end position, located on one shaft (10) of the tractor gearbox, of the tractor gearbox body (12), the inner end of the transmission shaft (7) is coaxially fixed with the one shaft (10) of the tractor gearbox through the transmission shaft connecting hole, and therefore the transmission shaft (7) is used for transmitting power to the one shaft (10) of the tractor gearbox.

2. A tractor traction drive as claimed in claim 1, wherein: the transmission shaft (7) with tractor semi-axis (4) parallel arrangement, drive shaft transmission part is drive shaft sprocket (14), the drive shaft transmission part is drive shaft sprocket (15), transmission connection structure be with drive shaft sprocket (14) with the drive shaft sprocket (15) meshing link together's drive chain.

3. A tractor traction drive as claimed in claim 1, wherein: the transmission shaft (7) and the tractor half shaft (4) are arranged in parallel, the drive shaft transmission part is a drive shaft gear, the transmission shaft transmission part is a transmission shaft gear, and the transmission connection structure is that the drive shaft gear is meshed with the transmission shaft gear.

4. A tractor traction drive transmission as claimed in claim 1, 2 or 3, wherein: the tractor separation self-locking device comprises a half shaft head connecting part (1), a hub connector and a meshing connector (2);

half axle spindle nose connecting portion (1) is located the outer tip of tractor semi-axis (4), and its structure is: a plurality of shaft head clamping grooves (1-2) are circumferentially arranged at intervals at the head part of the half shaft, each shaft head clamping groove (1-2) is axially formed by an opening at the end part of a shaft head, and a shaft head threaded connecting hole (1-1) is formed in the end surface of the shaft head;

the hub connector comprises a hub connecting flange (5) and a meshing connecting portion (6), wherein the meshing connecting portion (6) is provided with a shaft hole (6-1), a plurality of meshing clamping grooves (6-2) are circumferentially arranged on the outer end surface of the shaft hole (6-1) at intervals, the inner end of the meshing connecting portion (6) is fixedly connected with the outer end of the flange (5), so that a flange hole of the hub connecting flange (5) and the shaft hole (6-1) formed in the meshing connecting portion (6) are communicated together to form a half shaft matching hole, and a flange screw hole (5-1) of the hub connecting flange (5) is used for being in threaded connection with a hub;

the meshed connector (2) is provided with a shaft head assembling hole (2-1), a meshed connecting structure and a meshed connector screw hole (2-4); the diameter of the shaft head assembling hole (2-1) is matched with that of the half shaft head connecting part (1), a plurality of strip-shaped shaft head clamping blocks (2-2) protruding towards the axis are circumferentially arranged at intervals on the inner wall of the shaft head assembling hole (2-1), each shaft head clamping block (2-2) is axially arranged, each shaft head clamping block (2-2) is respectively in one-to-one correspondence with each shaft head clamping groove (1-2) of the half shaft head connecting part (1), so that the half shaft head connecting part (1) is inserted into the shaft head assembling hole (2-1), and each shaft head clamping block (2-2) is embedded into each corresponding shaft head clamping groove (1-2) to circumferentially fix the half shaft head connecting part (1) and the meshing connector (2) together; a plurality of meshed clamping blocks (2-3) are arranged at intervals in the circumferential direction on the inner end face surrounding the shaft head assembling hole (2-1), each meshed clamping block (2-3) is in one-to-one correspondence with each meshed clamping groove (6-2) of the hub connector, and each meshed clamping block (2-3) is embedded into each corresponding meshed clamping groove (6-2), so that the meshed connector (2) and the hub connector are fixed together in the circumferential direction; the meshed connector screw hole (2-4) is arranged at the outer end part of the shaft head assembling hole (2-1) and corresponds to a shaft head threaded connecting hole (1-1) formed in the end face of the shaft head, so that the meshed connector (2) is fixedly connected with the half shaft head connecting part (1) through a bolt.

5. A tractor-tractor transmission according to claim 4, wherein: and a plurality of shaft head clamping grooves (1-2) are arranged at equal intervals in the circumferential direction of the half shaft head part, and the sections of the shaft head clamping grooves (1-2) are the same, so that the shaft head clamping grooves (1-2) of the half shaft head part are matched with the shaft head clamping blocks (2-2) of the meshing connector (2), and the installation angles of the shaft head clamping grooves and the shaft head clamping blocks are convenient to adjust.

6. A tractor-tractor transmission according to claim 5, wherein: a plurality of meshing clamping grooves (6-2) are formed in the circumferential direction of the outer end face of the shaft hole (6-1) at equal intervals, and the sections of the meshing clamping grooves (6-2) are the same, so that the meshing clamping grooves (6-2) of the hub connector are matched with the meshing clamping blocks (2-3) of the meshing connector (2), and the installation angles of the meshing clamping grooves and the meshing clamping blocks are convenient to adjust.

7. A tractor traction drive as claimed in claim 6, wherein: the transmission shaft (7) and the tractor gearbox shaft (10) are of an integral structure.