阅读说明：本技术 一种方便调节自身长度的农业机械牵引装置 (Conveniently adjust agricultural machine draw gear of self length ) 是由 黎望 于 2019-11-11 设计创作，主要内容包括：本发明涉及农业机械技术领域,具体公开了一种方便调节自身长度的农业机械牵引装置,包括相互套接的第一牵引工件和第二牵引工件,所述第一牵引工件内具有一端为敞口结构的容纳腔；所述第二牵引工件的另一端插入至所述容纳腔内后,通过安装在第一牵引工件敞口端外壁上的锁定件进行固定。本发明实施例提供的农业机械牵引装置,通过具有倾斜面的锁定块、弹性支撑件、调节组件以及设置在牵引工件上的锁定槽之间的相互配合,能够实现牵引工件自身长度的调节,从而能够调整农业机械中前后车之间的安全距离,从而提高了农业机械使用的安全性。(The invention relates to the technical field of agricultural machinery, and particularly discloses an agricultural machinery traction device convenient for adjusting the length of the agricultural machinery traction device, which comprises a first traction workpiece and a second traction workpiece which are mutually sleeved, wherein an accommodating cavity with an open structure at one end is formed in the first traction workpiece; and after the other end of the second traction workpiece is inserted into the accommodating cavity, the second traction workpiece is fixed through a locking piece arranged on the outer wall of the open end of the first traction workpiece. According to the agricultural machine traction device provided by the embodiment of the invention, the length of the traction workpiece can be adjusted through mutual matching of the locking block with the inclined surface, the elastic supporting piece, the adjusting assembly and the locking groove arranged on the traction workpiece, so that the safety distance between a front vehicle and a rear vehicle in the agricultural machine can be adjusted, and the use safety of the agricultural machine is improved.)

1. The agricultural machine traction device convenient for adjusting the length of the agricultural machine traction device is characterized by comprising a first traction workpiece (1) and a second traction workpiece (2) which are mutually sleeved, wherein an accommodating cavity (11) with an open structure at one end is formed in the first traction workpiece (1); the other end of the second traction workpiece (2) is inserted into the accommodating cavity (11) and then fixed through a locking piece arranged on the outer wall of the open end of the first traction workpiece (1);

the locking piece comprises a first locking piece (5) and a second locking piece (6) which are symmetrically arranged on two sides of an open end of the first traction workpiece (1), a plurality of locking grooves (21) are formed in the opposite side surfaces of the second traction workpiece (2) at equal intervals, the first locking piece (5) and the second locking piece (6) which are identical in structure respectively comprise a supporting seat (61) fixedly installed on the first traction workpiece (1) and a locking block (62) matched with the locking grooves (21), and the locking block (62) is of a prism block structure with an inclined surface on one side; the supporting seat (61) is internally provided with a supporting groove (63) with an open structure at the bottom, an elastic supporting piece connected with the locking block (62) is rotationally arranged in the supporting groove (63), and the top of the supporting seat (61) is also provided with an adjusting component used for adjusting the orientation of an upper inclined surface of the locking block (62).

2. The agricultural machinery traction device convenient for adjusting the length of the agricultural machinery traction device according to claim 1, wherein the elastic supporting piece comprises a rotating cylinder (66) rotatably arranged in the supporting groove (63), an oval sliding block (68) is arranged in an inner cavity of the rotating cylinder (66) in a vertical sliding mode, and a supporting shaft (64) is arranged on a bottom plate of the rotating cylinder (66) in a penetrating and sliding mode;

the bottom end of a support shaft (64) arranged below the rotary cylinder (66) is fixedly connected with the locking block (62), and the top end of the support shaft (64) arranged in the inner cavity of the rotary cylinder (66) is fixedly connected with the oval sliding block (68);

the elastic support further comprises a support spring (67) for connecting the top surface of the oval slider (68) and the top surface of the inner cavity of the rotary cylinder (66).

3. The agricultural machine traction device convenient for self length adjustment according to claim 2, wherein a limit ring block (65) for limiting and supporting the rotary drum (66) is arranged in the support groove (63).

4. The agricultural machinery traction device convenient for adjusting the length of the agricultural machinery traction device according to claim 2 or 3, wherein the adjusting assembly comprises an adjusting rod (69) rotatably penetrating the top of the supporting base (61), the bottom end of the adjusting rod (69) arranged in the supporting groove (63) is rotatably connected with the top plate of the rotating cylinder (66), and an adjusting disc (70) is fixedly arranged at the top end of the adjusting rod (69) arranged above the supporting base (61).

5. The agricultural machinery traction device convenient for self length adjustment according to claim 4, wherein the top surface of the top plate of the supporting seat (61) is symmetrically provided with at least two limiting pins (71), and the bottom surface of the adjusting disk (70) is symmetrically provided with at least two limiting grooves (72) matched with the limiting pins (71).

6. The agricultural machinery traction device convenient for adjusting the length of the agricultural machinery traction device according to claim 5, wherein a compression spring (73) is further sleeved on the outer ring of the adjusting rod (69) arranged in the supporting groove (63), the top end of the compression spring (73) is in supporting connection with the top surface of the supporting groove (63), and the bottom end of the compression spring (73) is in supporting connection with the top surface of the rotating cylinder (66).

7. The agricultural machinery traction device convenient for self length adjustment according to any one of claims 1 to 3, wherein a traction hook (3) is fixedly arranged at one end of the second traction workpiece (2), and a traction hole (4) is formed in the traction hook (3).

8. The agricultural machine traction device convenient for self length adjustment according to claim 7 is characterized in that a guide groove (12) is formed on the inner wall of the accommodating cavity (11), and the outer ring of the second traction workpiece (2) is provided with a guide block (22) matched with the guide groove (12).

Technical Field

The invention relates to the technical field of agricultural machinery, in particular to an agricultural machinery traction device with the length of the agricultural machinery traction device convenient to adjust.

Background

Agriculture is a production department which uses living functions of animals and plants to transform natural substances and products which can be needed by human beings. At present, agriculture is divided into two categories, namely plant cultivation and animal feeding. In agriculture, crops need to be mechanically fed for generating operation, and common machines need to be towed by a towing device. However, the conventional traction device has a fixed structure, cannot adjust the length of the traction device, cannot automatically adjust the safety distance between a front vehicle and a rear vehicle, and has low safety. Therefore, a traction device for agricultural machinery is provided.

Disclosure of Invention

The invention aims to provide an agricultural machinery traction device with self length convenient to adjust so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

an agricultural machine traction device convenient for adjusting the length of the agricultural machine traction device comprises a first traction workpiece and a second traction workpiece which are mutually sleeved, wherein an accommodating cavity with an open structure at one end is formed in the first traction workpiece;

after the other end of the second traction workpiece is inserted into the accommodating cavity, the second traction workpiece is fixed through a locking piece arranged on the outer wall of the open end of the first traction workpiece;

the locking pieces comprise a first locking piece and a second locking piece which are symmetrically arranged at two sides of an open end of the first traction workpiece, a plurality of locking grooves are formed in the opposite side surfaces of the second traction workpiece at equal intervals, the first locking piece and the second locking piece which are identical in structure comprise a supporting seat fixedly mounted on the first traction workpiece and a locking block matched with the locking grooves, and the locking block is of a prismatic block structure with an inclined surface at one side;

the supporting seat is internally provided with a supporting groove with an open structure at the bottom, an elastic supporting piece connected with the locking block is rotationally arranged in the supporting groove, and the top of the supporting seat is also provided with an adjusting component used for adjusting the orientation of the upper inclined surface of the locking block.

As a further scheme of the invention: the elastic supporting piece comprises a rotating cylinder rotatably arranged in the supporting groove, an oval sliding block is arranged in an inner cavity of the rotating cylinder in a vertical sliding mode, a supporting shaft penetrates through a bottom plate of the rotating cylinder in a sliding mode, the bottom end of the supporting shaft arranged below the rotating cylinder is fixedly connected with the locking block, and the top end of the supporting shaft arranged in the inner cavity of the rotating cylinder is fixedly connected with the oval sliding block;

the elastic supporting piece further comprises a supporting spring used for connecting the top surface of the oval sliding block and the top surface of the inner cavity of the rotary cylinder.

As a further scheme of the invention: and a limiting ring block which has a limiting and supporting effect on the rotary cylinder is arranged in the supporting groove.

As a further scheme of the invention: the adjusting assembly comprises an adjusting rod which is rotatably arranged at the top of the supporting seat in a penetrating mode, the bottom end of the adjusting rod in the supporting groove is rotatably connected with the top plate of the rotating cylinder, and an adjusting disc is fixedly mounted at the top end of the adjusting rod above the supporting seat.

As a further scheme of the invention: at least two limiting pins are symmetrically arranged on the top surface of the top plate of the supporting seat, and at least two limiting grooves matched with the limiting pins are symmetrically arranged on the bottom surface of the adjusting plate.

As a further scheme of the invention: the outer ring of the adjusting rod arranged in the supporting groove is further sleeved with a compression spring, the top end of the compression spring is connected with the top surface support of the supporting groove, and the bottom end of the compression spring is connected with the top surface support of the rotating cylinder.

As a further scheme of the invention: and one end of the second traction workpiece is fixedly provided with a traction hook, and the traction hook is provided with a traction hole.

As a further scheme of the invention: a guide groove is formed in the inner wall of the accommodating cavity, and a guide block matched with the guide groove is arranged on the outer ring of the second traction workpiece.

Compared with the prior art, the agricultural machine traction device provided by the embodiment of the invention can realize the adjustment of the length of the traction workpiece through the mutual matching of the locking block with the inclined surface, the elastic supporting piece, the adjusting assembly and the locking groove arranged on the traction workpiece, so that the safety distance between the front vehicle and the rear vehicle in the agricultural machine can be adjusted, and the use safety of the agricultural machine is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.

Fig. 1 is a structural diagram of an agricultural machine traction device with a length of the agricultural machine traction device conveniently adjusted according to an embodiment of the invention in a use state.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a perspective view of a second traction workpiece in the agricultural machinery traction device which is provided by the embodiment of the invention and is convenient for adjusting the length of the traction workpiece.

Fig. 4 is a schematic structural diagram of an agricultural machine traction device provided by an embodiment of the invention, wherein the length of the agricultural machine traction device is conveniently adjusted in an extending state.

FIG. 5 is a schematic view of the retractable agricultural machine towing apparatus of the present invention with its length conveniently adjusted according to an embodiment of the present invention

In the figure: 1-a first traction workpiece, 2-a second traction workpiece, 3-a traction hook, 4-a traction hole, 5-a first locking piece and 6-a second locking piece;

11-accommodating cavity, 12-guide groove; 21-locking groove, 22-guide block;

61-supporting seat, 62-locking block, 63-supporting groove, 64-supporting shaft, 65-limiting ring block, 66-rotating cylinder, 67-supporting spring, 68-elliptical sliding block, 69-adjusting rod, 70-adjusting disk, 71-limiting pin, 72-limiting groove and 73-compression spring.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-3, in an embodiment provided by the present invention, an agricultural machinery traction device that facilitates adjusting its length includes a first traction workpiece 1 and a second traction workpiece 2 that are sleeved with each other, wherein the first traction workpiece 1 has an accommodating cavity 11 with an open end, one end of the second traction workpiece 2 is fixedly mounted with a traction hook 3, and the traction hook 3 has a traction hole 4; the other end of the second traction workpiece 2 is inserted into the accommodating cavity 11 and then fixed by a locking piece arranged on the outer wall of the open end of the first traction workpiece 1;

a guide groove 12 is formed in the inner wall of the accommodating cavity 11, and a guide block 22 matched with the guide groove 12 is arranged on the outer ring of the second traction workpiece 2;

further, the locking pieces comprise a first locking piece 5 and a second locking piece 6 which are symmetrically arranged on two sides of the open end of the first traction workpiece 1, a plurality of locking grooves 21 are formed in the opposite side surfaces of the second traction workpiece 2 at equal intervals, the first locking piece 5 and the second locking piece 6 which are identical in structure comprise a supporting seat 61 fixedly installed on the first traction workpiece 1 and a locking block 62 matched with the locking grooves 21, and the locking block 62 is of a prism block structure with an inclined surface on one side;

furthermore, in the embodiment of the present invention, a supporting groove 63 with an open bottom is formed in the supporting seat 61, an elastic supporting member connected to the locking block 62 is rotatably disposed in the supporting groove 63, and an adjusting assembly for adjusting the orientation of the inclined surface of the locking block 62 is further disposed at the top of the supporting seat 61;

specifically, the elastic supporting member comprises a rotary cylinder 66 rotatably arranged in the supporting groove 63, a limiting ring block 65 for limiting and supporting the rotary cylinder 66 is arranged in the supporting groove 63, an elliptical sliding block 68 is arranged in an inner cavity of the rotary cylinder 66 in a vertical sliding manner, a supporting shaft 64 is arranged on a bottom plate of the rotary cylinder 66 in a penetrating and sliding manner, the bottom end of the supporting shaft 64 arranged below the rotary cylinder 66 is fixedly connected with the locking block 62, and the top end of the supporting shaft 64 arranged in the inner cavity of the rotary cylinder 66 is fixedly connected with the elliptical sliding block 68; the elastic support member further includes a support spring 67 for connecting the top surface of the oval slider 68 and the top surface of the inner cavity of the rotary cylinder 66.

Referring to fig. 1-3, in the embodiment of the present invention, the adjusting assembly includes an adjusting rod 69 rotatably penetrating the top of the supporting base 61, the bottom end of the adjusting rod 69 disposed in the supporting slot 63 is rotatably connected to the top plate of the rotating cylinder 66, and an adjusting disc 70 is fixedly mounted at the top end of the adjusting rod 69 disposed above the supporting base 61;

at least two limiting pins 71 are symmetrically arranged on the top surface of the top plate of the supporting seat 61, and at least two limiting grooves 72 matched with the limiting pins 71 are symmetrically arranged on the bottom surface of the adjusting disc 70; further, the outer ring of the adjusting rod 69 disposed in the supporting groove 63 is further sleeved with a compression spring 73, the top end of the compression spring 73 is in supporting connection with the top surface of the supporting groove 63, and the bottom end of the compression spring 73 is in supporting connection with the top surface of the rotating cylinder 66.

Specifically, as shown in fig. 5, the first locking member 5 and the second locking member 6 are similarly operated such that the stopper groove 72 is disengaged from the stopper pin 71 by pulling the adjustment disc 70, then the adjustment disc 70 is operated to rotate the elastic support member to drive the inclined surface of the locking block 62 toward the insertion direction of the second workpiece 2, at this time, when the second workpiece 2 is inserted into the receiving cavity 11, the end of the second workpiece 2 is abutted against the inclined surface of the locking block 62 and the elastic support member is compressed, and after the second workpiece 2 is inserted into the receiving cavity 11 according to a desired length, the locking block 62 is inserted into the corresponding locking groove 21, since the non-inclined surface of the locking block 62 is abutted against the vertical surface of the locking groove 21 when the locking block 62 is placed in the locking groove 21, the second workpiece 2 cannot be pulled out of the receiving cavity 11, at this time, one of the first locking member 5 or the second locking member 6 is adjusted, the included locking block 62 is rotated for half a circle (as shown in fig. 1), at this time, the second traction workpiece 2 cannot be pulled outwards or pushed inwards, and at this time, the first traction workpiece 1 and the second traction workpiece 2 are in a fixed state after the length adjustment is completed;

when it is necessary to pull the second workpiece 2 outwardly so as to adjust the inclined surfaces of the locking blocks 62 included in both the first locking member 5 and the second locking member 6 toward the first workpiece 1 (as shown in fig. 4), the second workpiece 2 can be easily pulled out from the housing chamber 11.

In summary, the agricultural machine traction device provided by the embodiment of the invention can realize the adjustment of the length of the traction workpiece through the mutual matching among the locking block with the inclined surface, the elastic supporting piece, the adjusting assembly and the locking groove arranged on the traction workpiece, so that the safety distance between the front vehicle and the rear vehicle in the agricultural machine can be adjusted, and the use safety of the agricultural machine is improved.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.