CN118274041A - Duplex type coaxial transmission part, articulated chassis and articulated tractor - Google Patents

Abstract

The invention discloses a duplex coaxial transmission part, a articulated chassis and an articulated tractor, wherein the duplex coaxial transmission part comprises a pipe shaft part and a first shaft part, the first shaft part is coaxially arranged in the pipe shaft part in a rotating way, the middle part of the first shaft part is provided with a first universal part, the middle part of the pipe shaft part is provided with a second universal part with hollow inside, the first universal part is positioned in the second universal part, the first shaft part can rotate relative to the pipe shaft part, the two ends of the first shaft part and the pipe shaft part can synchronously swing, the first shaft part is rotatably arranged in the pipe shaft part, the middle part of the pipe shaft part is provided with a second universal part, and the middle part of the first shaft part is provided with a first universal part positioned in the second universal part, so that the first shaft part can coaxially rotate relative to the pipe shaft part, and simultaneously can synchronously swing with the pipe shaft part, and at the moment, the pipe shaft part and the first shaft part can respectively transmit power.

Description

Duplex type coaxial transmission part, articulated chassis and articulated tractor

Technical Field

The invention belongs to the technical field of tractors, and particularly relates to a duplex coaxial transmission part, a bowing chassis and a bowing tractor.

Background

At present, small tractors are mainly used in agricultural operation in mountain areas or hilly areas, the requirements of the mountain area operation are generally difficult to be met by large tractors, the requirements of the mountain area operation are mainly reflected in that the bump feeling of the large tractors is strong due to the terrain characteristics of the mountain areas, driving comfort is poor, and the waist-twisting tractors can twist back and forth due to the chassis of the waist-twisting tractors, so that front wheels and rear wheels of the waist-twisting tractors can fall on complex road conditions better and simultaneously land, although the structure of a vehicle for bending and twisting is disclosed in a layout method for a waist-bending steering and waist-twisting swinging mechanism on a vehicle in the document No. CN108482484A, the structure of the waist-twisting position of the waist-twisting tractors is complex, and meanwhile, a driving system at the waist-twisting position of the waist-twisting tractors needs to be correspondingly adjusted.

Disclosure of Invention

In order to solve the above technical problems, one of the purposes of the present invention is to provide a duplex coaxial transmission member, which has a simple structure, is coaxially provided with a tube shaft member and a first shaft member, and can synchronously swing without interference during transmission.

In order to achieve the above object, the technical scheme of the present invention is as follows: the utility model provides a coaxial driving medium of duplex, includes spool piece and first spool piece, the coaxial rotation of first spool piece sets up in the spool piece, first spool piece middle part has first universal piece, the middle part of spool piece has inside hollow second universal piece, first universal piece is located in the second universal piece, first spool piece can for spool piece rotates, just the both ends of first spool piece and spool piece can swing in step.

The beneficial effects of the technical scheme are that: through rotating the first shaft part and setting up in the pipe shaft part, and the middle part of pipe shaft part has the second universal piece, and the middle part of first shaft part has the first universal piece that is located the second universal piece, makes like this first shaft part can rotate for the pipe shaft part is coaxial, can also carry out the pendulum simultaneously with the pipe shaft part and change, and pipe shaft part and first shaft part can carry out power transmission respectively this moment.

In the above technical scheme, the first shaft member further comprises two first rotating shafts, the two first rotating shafts are respectively coaxially installed in the two ends of the tube shaft member in a rotating mode, and one ends, close to each other, of the two first rotating shafts are connected with corresponding ends of the first universal member.

The beneficial effects of the technical scheme are that: the power transmission device is simple in structure, the two first rotating shafts are connected through the first universal piece, so that power transmission can be realized, and swinging can be further carried out.

According to the technical scheme, the pipe shaft piece further comprises two pipe shafts, the two pipe shafts are coaxially sleeved outside the two first rotating shafts respectively, each pipe shaft is coaxially and rotatably connected with the corresponding first rotating shaft, and one ends, close to each other, of the two pipe shafts are connected with the corresponding ends of the second universal piece respectively.

The beneficial effects of the technical scheme are that: through setting up two spool, so make two first pivots can be respectively coaxial in the corresponding spool that rotates the setting, and swing connection and power transmission are carried out through the second universal piece between two spool.

In the technical scheme, the first universal piece and the second universal piece are double-cross-shaft universal joints.

The beneficial effects of the technical scheme are that: the structure is simple, and the power transmission efficiency is high.

In the above technical scheme, the second universal piece includes two fork connection yokes, two cross axles and two single fork heads, two the single fork head is installed respectively two the one end that the tube axle is close to each other, and two the notch of single fork head is close to each other, every the hole of tube axle runs through corresponding the middle part of single fork head, the middle part of cross axle is provided with first through-hole, the middle part of two fork connection yokes is provided with the second through-hole that runs through its both ends, two fork connection yokes set up between two single fork heads, every single fork head with the corresponding end of two fork connection yokes is through one the cross axle pendulum changes to be connected, first universal piece passes in second through-hole and the two first through-holes, two the tip of first pivot all stretches into to corresponding in the single fork head.

The beneficial effects of the technical scheme are that: the structure is simple, so that the first universal piece can be accommodated in the hollow space of the second universal piece, and the second universal piece has no interference to the first universal piece.

The second purpose of the invention is to provide a bowing chassis which has a simple structure, can realize bowing, and can synchronously bow and swing along with the chassis.

In order to achieve the above object, another technical solution of the present invention is as follows: the utility model provides a bow chassis, includes two chassis seats and as above duplex coaxial transmission spare, two the chassis seat sets up along the fore-and-aft direction interval, and two the chassis seat is close to each other one end control pendulum and is rotated and be connected, duplex coaxial transmission spare sets up along the fore-and-aft direction, and two the tube axle is rotated respectively and is installed and correspond on the chassis seat, just first universal piece and second universal piece are located two the pendulum department of chassis seat.

The beneficial effects of the technical scheme are that: the structure is simple, the chassis can be divided into front chassis seats and rear chassis seats, the two chassis seats are connected in a left-right swinging way, power transmission on the chassis is carried out through the duplex coaxial transmission piece, the duplex coaxial transmission piece can swing left and right along with the chassis, and the power transmission is not influenced when the chassis swings.

The technical scheme is characterized by further comprising a second shaft member, wherein the second shaft member is arranged in the front-rear direction, two ends of the second shaft member are respectively connected with two chassis seats in a rotating mode, a third universal member is arranged at the swing joint of the middle part of the second shaft member corresponding to the two chassis seats, and the middle part of the second shaft member can swing synchronously with the two chassis seats.

The beneficial effects of the technical scheme are that: therefore, the power transmission between the front axle and the rear axle can be realized through the second shaft member, the whole chassis can be a four-wheel drive chassis, and the second shaft member can swing through the third universal member while transmitting the power.

In the above technical scheme, the second shaft member further comprises two second rotating shafts, the two second rotating shafts are respectively installed on the two chassis seats in a rotating manner along the front-back direction, and one ends, close to each other, of the two second rotating shafts are connected through the third universal member.

The beneficial effects of the technical scheme are that: the structure is simple.

In the above technical scheme, the third universal piece includes axle sleeve, slide shaft and two sub-universal joints, be provided with the key tooth on the lateral wall of slide shaft, set up the keyway on the inner wall of axle sleeve, the one end of slide shaft stretches into in the one end of axle sleeve, just the keyway agrees with the key tooth, the one end that axle sleeve and slide shaft kept away from each other is connected with one sub-universal joint and two with one end that the second pivot is close to each other respectively.

The beneficial effects of the technical scheme are that: the structure is simple, so that the third universal piece can swing and rotate, power transmission can be carried out, and meanwhile, the telescopic mechanism can stretch and retract, and the telescopic mechanism can provide steering allowance for the chassis.

The invention further aims to provide a bowing tractor which has a simple structure and is suitable for mountain area operation.

The other technical scheme of the invention is as follows: a articulated tractor comprising an articulated chassis as described above.

The beneficial effects of the technical scheme are that: the structure is simple, and the device can meet the requirements of mountain area operation.

Drawings

FIG. 1 is a cross-sectional view of a duplex coaxial transmission according to embodiment 1 of the invention;

FIG. 2 is a schematic structural view of the first shaft member according to embodiment 1 of the present invention;

FIG. 3 is a schematic view of a second gimbal according to embodiment 1 of the present invention;

FIG. 4 is a schematic view of the cross-shaft according to embodiment 1 of the present invention;

FIG. 5 is a partial cross-sectional view of the yoke for dual fork attachment of embodiment 1 of the present invention;

FIG. 6 is a schematic view showing the structure of a articulated chassis according to embodiment 2 of the present invention;

FIG. 7 is a schematic structural view of a third shaft member according to embodiment 2 of the present invention;

fig. 8 is a schematic view showing the assembly of the sleeve and the slide shaft in embodiment 2 of the present invention.

In the figure: 1, a pipe shaft member; 11a second gimbal; a 111 double fork connecting yoke; 1111 second through holes; 112 cross; 1121 a first via; 113 single prongs; 12 tube shafts; 2a first shaft member; a first gimbal member 21; 22 a first rotation axis; 10 duplex coaxial transmission parts; 20 chassis base; a second shaft member 30; 31 a third gimbal; 311 sleeve; 3111 keyways; 312 sliding shafts; 3121 key teeth; 313 sub-universal joint; 32 second axis of rotation.

Detailed Description

The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention. The invention is more particularly described by way of example in the following paragraphs with reference to the drawings. Advantages and features of the invention will become more apparent from the following description and from the claims. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention.

Example 1

As shown in fig. 1, the present embodiment provides a duplex coaxial transmission member, including a tube shaft member 1 and a first shaft member 2, the first shaft member 2 is coaxially rotatably disposed in the tube shaft member 1, a first universal member 21 is disposed in the middle of the first shaft member 2, a second universal member 11 hollow in the interior is disposed in the middle of the tube shaft member 1, the first universal member 21 is disposed in the second universal member 11, the first shaft member 2 is rotatable relative to the tube shaft member 1, and both ends of the first shaft member 2 and the tube shaft member 1 are capable of being synchronously swung, and by rotating the first shaft member in the tube shaft member, the middle of the first shaft member is provided with the second universal member, and the middle of the first shaft member is provided with the first universal member disposed in the second universal member, so that the first shaft member can coaxially rotate relative to the tube shaft member, and simultaneously can be synchronously swung with the tube shaft member, at this time, the tube shaft member and the first shaft member can respectively perform power transmission.

As shown in fig. 2, in the above technical solution, the first shaft 2 further includes two first shafts 22, the two first shafts 22 are coaxially and rotatably mounted in two ends of the pipe shaft 1, and one ends of the two first shafts 22, which are close to each other, are connected with corresponding ends of the first universal member 21, so that the power transmission can be realized and the swing can be performed.

In the above technical solution, the tubular shaft member 1 further includes two tubular shafts 12, the two tubular shafts 12 are respectively coaxially sleeved 311 outside the two first rotating shafts 22, each tubular shaft 12 is coaxially rotatably connected with the corresponding first rotating shaft 22, one ends of the two tubular shafts 12, which are close to each other, are respectively connected with the corresponding ends of the second universal member 11, and by setting the two tubular shafts, the two first rotating shafts can be respectively coaxially rotated and arranged in the corresponding tubular shafts, and swing connection and power transmission are performed between the two tubular shafts through the second universal member.

In the above technical solution, the first universal member 21 and the second universal member 11 are double-cross-shaft universal joints, which have simple structure and high power transmission efficiency.

As shown in fig. 3-5, in the above technical solution, the second universal member 11 includes a double-fork connecting yoke 111, two cross shafts 112 and two single-fork heads 113, the two single-fork heads 113 are respectively installed at one ends of the two tube shafts 12 close to each other, notches of the two single-fork heads 113 are close to each other, an inner hole of each tube shaft 12 penetrates through a middle portion corresponding to the single-fork head 113, a first through hole 1121 is provided in the middle portion of the cross shaft 112, a second through hole 1111 penetrating through two ends of the double-fork connecting yoke 111 is provided in the middle portion of the double-fork connecting yoke 111, the double-fork connecting yoke 111 is disposed between the two single-fork heads 113, each single-fork head 113 and a corresponding end of the double-fork connecting yoke 111 are connected by swinging the single-fork shaft 112, the first universal member 21 penetrates through the second through hole 1111 and the two first through holes 1121, and ends of the two first rotary shafts 22 extend into the corresponding single-fork heads 113, and the structure is simple such that the second universal member can be accommodated in the hollow first universal member without interference.

Of course, the middle part of the single fork head may form a hole (the notch end of the single fork head is C-shaped, and the two ends of the double fork connecting yoke are also C-shaped), while the end of the tube shaft is connected with the hole of the single jack through a spline, and the double fork connecting yoke 111 and the cross 112 in this embodiment are similar to the structure of the existing double cross universal joint, and the difference is only that the middle part of the cross and the middle part of the double fork connecting yoke are respectively provided with a first through hole and a second through hole.

Example 2

As shown in fig. 6, this embodiment provides a articulated chassis, which includes two chassis bases 20 and a duplex coaxial transmission member 10 as described in embodiment 1, wherein the two chassis bases 20 are disposed along a front-rear direction, the two chassis bases 20 are disposed at intervals along the front-rear direction, and the two chassis bases 20 are close to each other and are connected in a side-to-side manner, the duplex coaxial transmission member 10 is disposed along the front-rear direction, and the two tube shafts 12 are respectively rotatably mounted on the corresponding chassis bases 20, and the first universal member 21 and the second universal member 11 are disposed at the swing positions of the two chassis bases 20, at this time, the chassis can be divided into two front and rear chassis bases, and the two chassis bases are connected in a side-to-side manner, and the power transmission on the chassis is performed through the duplex coaxial transmission member, and the duplex coaxial transmission member can swing left and right along with the chassis, and is not affected by the swing motion, wherein the duplex coaxial transmission member 10 further includes a second shaft member 30, and the second shaft member 30 is disposed along the front and rear direction, and the two universal members are respectively connected with the two universal members 20 in a side-to the front and rear direction, and the two universal members are simultaneously connected with the chassis 20, and the chassis can swing at the two ends of the two universal members 30 simultaneously.

In the above technical solution, the second shaft member 30 further includes two second rotating shafts 32, the two second rotating shafts 32 are respectively rotatably mounted on the two chassis bases 20 along the front-rear direction, and one ends of the two second rotating shafts 32, which are close to each other, are connected by the third universal member 31, which has a simple structure.

As shown in fig. 7 and 8, in the above technical solution, the third universal member 31 includes a shaft sleeve 311, a sliding shaft 312 and two sub-universal joints 313, a key tooth 3121 is disposed on a side wall of the sliding shaft 312, a key slot 3111 is disposed on an inner wall of the shaft sleeve 311, one end of the sliding shaft 312 extends into one end of the shaft sleeve 311, the key slot 3111 is engaged with the key tooth 3121, and one end of the shaft sleeve 311 and one end of the sliding shaft 312, which are far away from each other, are respectively connected with one sub-universal joint 313 and two ends of the second rotating shaft 32, which are close to each other, so that the third universal member can swing and power transmission, and can also stretch and retract, so that it can provide a steering allowance for the chassis.

The duplex coaxial transmission member 10 and the second shaft member 30 in this embodiment may be embedded in and rotationally connected to two chassis seats, so that the structure of the entire chassis seat is more compact, in which the tube shaft member is configured to output power from front to back, and the first shaft member may output power to the PTO back, and the second shaft member drivingly connects the front axle differential and the rear axle differential, so as to meet the power transmission requirement of the four-wheel drive vehicle.

Example 3

The embodiment provides a bowing tractor, which comprises the bowing chassis as described in embodiment 2, has a simple structure, and can adapt to the requirements of mountain area operation.

The above description is only of the preferred embodiments of the present invention, and is not intended to limit the present invention in any way; those skilled in the art will readily appreciate that the present invention may be implemented as shown in the drawings and described above; however, those skilled in the art will appreciate that many modifications, adaptations, and variations of the present invention are possible in light of the above teachings, without departing from the scope of the invention; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present invention still fall within the scope of the present invention.

Claims (10)

1. The utility model provides a coaxial driving medium of duplex, its characterized in that, includes spool piece (1) and first spool piece (2), first spool piece (2) coaxial rotation sets up in spool piece (1), first spool piece (2) middle part has first universal piece (21), the middle part of spool piece (1) has inside hollow second universal piece (11), first universal piece (21) are located in second universal piece (11), first spool piece (2) can for spool piece (1) rotate, just the both ends of first spool piece (2) and spool piece (1) can swing in step.

2. The duplex coaxial transmission according to claim 1, wherein the first shaft member (2) further comprises two first rotating shafts (22), the two first rotating shafts (22) are coaxially rotatably mounted inside two ends of the pipe shaft member (1), and one ends of the two first rotating shafts (22) close to each other are connected with corresponding ends of the first universal member (21).

3. The duplex coaxial transmission according to claim 2, wherein the pipe shaft member (1) further comprises two pipe shafts (12), the two pipe shafts (12) are coaxially sleeved (311) outside the two first rotating shafts (22), each pipe shaft (12) is coaxially and rotatably connected with the corresponding first rotating shaft (22), and one ends of the two pipe shafts (12) close to each other are respectively connected with the corresponding ends of the second universal member (11).

4. A twin coaxial transmission according to claim 3, in which the first and second universal members (21, 11) are double cross-shaft universal joints.

5. The duplex coaxial transmission according to claim 4, wherein the second universal member (11) comprises a double-fork connecting yoke (111), two cross shafts (112) and two single-fork heads (113), the two single-fork heads (113) are respectively arranged at one ends of the two tube shafts (12) which are close to each other, notches of the two single-fork heads (113) are close to each other, an inner hole of each tube shaft (12) penetrates through a middle part of the corresponding single-fork head (113), a first through hole (1121) is formed in the middle part of the cross shaft (112), a second through hole (1111) penetrating through two ends of the double-fork connecting yoke (111) is formed in the middle part of the double-fork connecting yoke (111), the corresponding ends of the single-fork heads (113) and the double-fork connecting yoke (111) are connected in a swinging mode through one cross shaft (112), and the first universal member (21) penetrates through the second through hole (1121) and the corresponding two single-fork heads (113) to the two end parts (22) of the single-fork heads (113).

6. The articulated chassis is characterized by comprising two chassis bases (20) and the duplex coaxial transmission member (10) according to any one of claims 3-5, wherein the two chassis bases (20) are arranged in the front-rear direction, the two chassis bases (20) are arranged at intervals in the front-rear direction, the two chassis bases (20) are in left-right swinging connection at one end close to each other, the duplex coaxial transmission member (10) is arranged in the front-rear direction, the two pipe shafts (12) are respectively and rotatably arranged on the corresponding chassis bases (20), and the first universal member (21) and the second universal member (11) are positioned at swinging positions of the two chassis bases (20).

7. The articulated chassis according to claim 6, further comprising a second shaft member (30), wherein the second shaft member (30) is disposed along a front-rear direction, two ends of the second shaft member are respectively rotatably connected with the two chassis bases (20), a third universal member (31) is disposed at a position corresponding to a swing connection position of the two chassis bases (20) in a middle portion of the second shaft member (30), and the middle portion of the second shaft member (30) along the middle portion can swing synchronously with the two chassis bases (20).

8. The articulated chassis according to claim 7, wherein the second shaft member (30) further comprises two second rotating shafts (32), the two second rotating shafts (32) are rotatably mounted on the two chassis base (20) in the front-rear direction, respectively, and one ends of the two second rotating shafts (32) close to each other are connected by the third universal member (31).

9. The articulated chassis according to claim 8, wherein the third universal member (31) comprises a shaft sleeve (311), a sliding shaft (312) and two sub-universal joints (313), key teeth (3121) are arranged on the side wall of the sliding shaft (312), key grooves (3111) are arranged on the inner wall of the shaft sleeve (311), one end of the sliding shaft (312) stretches into one end of the shaft sleeve (311), the key grooves (3111) are engaged with the key teeth (3121), and one end, away from each other, of the shaft sleeve (311) and the sliding shaft (312) is connected with one end, close to each other, of one sub-universal joint (313) and two second rotating shafts (32).

10. A articulated tractor comprising an articulated chassis according to any one of claims 6 to 9.