CN217116851U - Traction self-locking device and tractor - Google Patents
Traction self-locking device and tractor Download PDFInfo
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- CN217116851U CN217116851U CN202220906976.5U CN202220906976U CN217116851U CN 217116851 U CN217116851 U CN 217116851U CN 202220906976 U CN202220906976 U CN 202220906976U CN 217116851 U CN217116851 U CN 217116851U
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- traction
- pin
- locking device
- hanging ring
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Abstract
The utility model relates to a traction self-locking device and a tractor, relating to the field of agricultural machinery.A hanging ring of the traction self-locking device is rotatably arranged at the upper end of a traction pin, and a lock tongue is rotatably arranged on a traction frame; the spring bolt can rotate to and link the butt and restriction link rotates, perhaps rotates to dodging the link. The tractor comprises a traction self-locking device. The utility model has the advantages that: after the traction pin is inserted, the hanging ring falls into the lower part of the lock tongue by using the dead weight, and the lock tongue rotates and returns due to the dead weight. The link on the towing pin passes through the spring bolt locking, and when the towing pin received vibrations, the spring bolt hindered the rotation of link to the towing pin is difficult for deviating from, and simple structure, reliable, compact. When the traction pin needs to be taken out, the lock tongue only needs to be rotated to avoid the hanging ring, the hanging ring is lifted to take out the traction pin, and the traction pin taking device is simple to operate and convenient to maintain.
Description
Technical Field
The utility model relates to the field of agricultural machinery, concretely relates to pull self-lock device and tractor.
Background
The tractor pulls as the equipment that pulls agricultural implement and agricultural trailer, and draw gear's design requirement is when pulling agricultural implement or trailer, can satisfy each item agronomy requirement, and the tractor takes agricultural implement group or the operation of trailer unit, should have good traction performance, guarantees the convenience of agricultural implement and trailer dismouting and adjustment. Meanwhile, when the tractor works, the tractor body jolts continuously due to vibration of an engine, shock of a road surface and the like, so that the traction pin is easy to disengage, the whole tractor is disconnected from machines or trailers in the working process, and safety accidents are caused.
The towing pin is installed in the pinhole of traction frame among the prior art, has the hole that is used for installing the elastic pin on the towing pin, and the elastic pin adopts the spring steel material, has certain elasticity, articulates the back when with agricultural implement, inserts in the hole of towing pin, and the elastic locking pin is because elasticity to carry out the locking to the towing pin, play the safety action. But only adopt the elasticity lockpin fixed, receive vibrations or improper exogenic action when the elasticity round pin, deviate from easily to cause the towing pin to lack effective locking, thereby the towing pin deviates from and causes the danger.
SUMMERY OF THE UTILITY MODEL
The utility model discloses how the technical problem that will solve is locking towing pin.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a traction self-locking device comprises a traction frame and a traction pin, wherein the lower end of the traction pin can slidably penetrate through the traction frame, the traction self-locking device also comprises a hanging ring and a lock tongue, the hanging ring is rotatably arranged at the upper end of the traction pin, and the lock tongue is rotatably arranged on the traction frame; the lock tongue can rotate to abut against the hanging ring and limit the hanging ring to rotate, or rotate to avoid the hanging ring.
The utility model has the advantages that: after the traction pin is inserted, the hanging ring falls into the lower part of the lock tongue by using the dead weight, and the lock tongue rotates and returns due to the dead weight. The link on the towing pin passes through the spring bolt locking, and when the towing pin received vibrations, the spring bolt hindered the rotation of link to the towing pin is difficult for deviating from, and simple structure, reliable, compact. When the traction pin needs to be taken out, the lock tongue only needs to be rotated to avoid the hanging ring, the hanging ring is lifted to take out the traction pin, and the traction pin taking device is simple to operate and convenient to maintain.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Furthermore, the lower part of spring bolt has the arc surface, the radius of rotation of arc surface is R, the radius of rotation of link is R, the pivot of link with the distance of spring bolt pivot is D, and D + R > R.
The beneficial effect of adopting the further scheme is that: the arc surface is used for limiting the rotation of the suspension loop, when the spring bolt is shaken and shaken due to the arc surface, the distance from any position on the arc surface to the rotation center of the spring bolt is equal, and the rotation of the suspension loop can be effectively limited at any position.
Further, one side of the upper portion of the lock tongue, which is far away from the towing pin, is provided with a guide plane.
The beneficial effect of adopting the further scheme is that: when the traction pin is inserted into the traction frame, the hanging ring is put down, the hanging ring presses to the guide plane due to the dead weight, the spring bolt rotates due to the action of external force, the hanging ring falls below the lock tongue, and the spring bolt resets under the action of the dead weight and rotates to the upper part of the hanging ring.
Furthermore, the spring bolt is the sector, the centre of a circle department of sector with the traction frame rotates and is connected.
Furthermore, the traction device also comprises an elastic pin which is detachably connected with the end part of the lower end of the traction pin.
The beneficial effect of adopting the further scheme is that: the towing pin is locked together through the elastic pin and the lock tongue, and is stable and reliable.
Furthermore, the upper end of the traction pin is provided with an end head, the hanging ring is rotatably connected with the end head, and the lower surface of the end head is abutted to the traction frame.
The beneficial effect of adopting the further scheme is that: the end is used for realizing the spacing of traction pin upper end and traction frame.
Further, the traction frame comprises a support and a main frame body, one end of the support is fixedly connected with the main frame body, the other end of the support extends to the upper portion of the main frame body, the lower end of the traction pin sequentially penetrates through the other end of the support and the main frame body in a sliding mode, and the lock tongue is rotatably installed on the support.
Furthermore, the spring bolt pulling device further comprises an elastic piece, wherein one end of the elastic piece is connected with the spring bolt, and the other end of the elastic piece is connected with the pulling frame.
The beneficial effect of adopting the further scheme is that: the elastic piece is used for limiting the rotation range of the lock tongue.
The utility model also provides a tractor, include a pull self-lock device.
Drawings
Fig. 1 is a three-dimensional view of a traction self-locking device of the present invention;
fig. 2 is a front view of the traction self-locking device of the present invention;
fig. 3 is a front sectional view of the traction self-locking device of the present invention;
fig. 4 is a bottom view of the traction self-locking device of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a traction frame; 101. a support; 102. a main frame body; 2. a tow pin; 201. a tip; 3. hanging a ring; 4. a latch bolt; 401. a circular arc surface; 402. a guide plane; 5. and an elastic pin.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 4, the present embodiment provides a traction self-locking device, which includes a traction frame 1 and a traction pin 2, wherein a lower end of the traction pin 2 slidably passes through the traction frame 1, and further includes a hanging ring 3 and a lock tongue 4, the hanging ring 3 is rotatably mounted on an upper end of the traction pin 2, and the lock tongue 4 is rotatably mounted on the traction frame 1; the lock tongue 4 can rotate to abut against the hanging ring 3 and limit the hanging ring 3 to rotate, or rotate to avoid the hanging ring 3.
After inserting towing pin 2, link 3 utilizes the dead weight to fall into spring bolt 4 lower part, and spring bolt 4 rotates the playback because of the dead weight simultaneously. The link 3 on the towing pin 2 passes through the locking of spring bolt 4, and when towing pin 2 received vibrations, spring bolt 4 blockked the rotation of link 3 to towing pin 2 is difficult for deviating from, and simple structure, reliable, compact. When the traction pin 2 needs to be taken out, the lock tongue 4 only needs to be rotated to avoid the hanging ring 3, the hanging ring 3 is lifted to take out the traction pin 2, and the operation is simple and the maintenance is convenient.
Wherein, spring bolt 4 can be the piece of arbitrary geometry, and spring bolt 4 is flagging and can restrict the rotation of link 3 under the dead weight effect can. The bolt 4 is not coincident with the rotation center of the suspension ring 3.
On the basis of any one of the above schemes, the lower part of the lock tongue 4 is provided with an arc surface 401, the rotating radius of the arc surface 401 is R, the rotating radius of the hanging ring 3 is R, the distance between the rotating shaft of the hanging ring 3 and the rotating shaft of the lock tongue 4 is D, and D + R is larger than R.
As shown in fig. 3, the arc surface 401 is used for limiting the rotation of the suspension loop 3, and when the lock tongue 4 shakes due to the arc surface 401, the distance from any position on the arc surface 401 to the rotation center of the lock tongue 4 is equal, and the rotation of the suspension loop 3 can be effectively limited at any position.
Specifically, when D + R is larger than R, the outer contour of the lock tongue 4 always exceeds the rotating track of the hanging ring 3, so that the rotation of the hanging ring 3 can be limited.
On the basis of any of the above solutions, the upper portion of the locking tongue 4, which is far away from the towing pin 2, has a guiding plane 402.
When the traction pin 2 is inserted into the traction frame 1, the hanging ring 3 is put down, the hanging ring 3 presses the guide plane 402 due to self weight, the bolt 4 rotates due to external force, the hanging ring 3 falls below the bolt 4, and the bolt 4 resets under the action of self weight and rotates to the position above the hanging ring 3.
The upper part of the bolt 4 near the towing pin 2 can be straight or curved.
Preferably, the lock tongue 4 is a sector, and the circle center of the sector is rotatably connected with the traction frame 1.
On the basis of any scheme, the traction pin device further comprises an elastic pin 5, and the elastic pin 5 is detachably connected with the lower end part of the traction pin 2.
The towing pin 2 is locked together through the elastic pin 5 and the bolt 4, and even the bolt 4 swings too much under the vibration effect, the elastic pin 5 locks, and is stable and reliable.
On the basis of any scheme, the upper end of the traction pin 2 is provided with a head 201, the hanging ring 3 is rotatably connected with the head 201, and the lower surface of the head 201 is abutted to the traction frame 1.
The end head 201 is used for limiting the upper end of the traction pin 2 and the traction frame 1.
On the basis of any scheme, the traction frame 1 comprises a support 101 and a main frame body 102, one end of the support 101 is fixedly connected with the main frame body 102, the other end of the support 101 extends to the upper side of the main frame body 102, the lower end of the traction pin 2 sequentially penetrates through the other end of the support 101 and the main frame body 102 in a sliding manner, and the bolt 4 is rotatably installed on the support 101.
On the basis of any scheme, the novel bolt pulling device further comprises an elastic piece, one end of the elastic piece is connected with the bolt 4, and the other end of the elastic piece is connected with the pulling frame 1.
The elastic piece is used for limiting the rotation range of the bolt, and the locking of the bolt 4 is more reliable. Specifically, when the towing pin 2 is installed, as shown in fig. 3, the latch 4 is pushed to rotate counterclockwise, the elastic element generates elastic force, and the latch 4 is released after the suspension loop 3 falls below the latch 4. Then as shown in fig. 1-3, the latch tongue 4 is at an initial position due to its own weight and the elastic force of the elastic member, and at this time, the latch tongue 4 can limit the suspension loop 3; the elastic piece is in a natural state and does not generate elasticity, or the elastic piece is balanced with the gravity of the bolt 4, and the bolt 4 is balanced in stress. When the shock is received, the bolt 4 can automatically reset under the elastic force action of the elastic piece.
The elastic part can be a torsion spring sleeved on the rotating shaft of the bolt 4, the bolt 4 and the traction frame 1 are respectively provided with a protruding part for limiting, and two ends of the torsion spring are respectively abutted against the protruding parts on the bolt 4 and the traction frame 1; or the elastic part is a compression spring, and two ends of the compression spring are respectively fixedly connected with the bolt 4 and the traction frame 1.
In one specific embodiment, the use process of the traction self-locking device is specifically as follows:
when installing towing pin 2, in inserting towing pin 2 traction frame 1, end 201 and traction frame 1 butt put down link 3, link 3 is because the dead weight, presses to direction plane 402, as shown in fig. 3, spring bolt 4 is owing to receive exogenic action and anticlockwise rotation, makes link 3 fall to spring bolt 4 below, and spring bolt 4 clockwise rotation resets under the dead weight, rotates to the link 3 top. At this time, the elastic pin 5 is inserted into the lower end of the kingpin 2, and the kingpin 2 is completely installed.
When link 3 when vibrations or external force upwards, link 3 promotes spring bolt 4 clockwise rotation, because the center of rotation of spring bolt 4 and the center that link 3 rotated on towing pin 2 are not concentric to when spring bolt 4 rotates, because the arc surface 401 of spring bolt 4 is to the hindrance effect of link 3, thereby realize the locking to link 3.
When the traction pin needs to be disengaged, the elastic pin 5 is firstly taken down, as shown in fig. 3, the bolt 4 is stirred anticlockwise by hand, so that the self-locking effect of the bolt 4 on the hanging ring 3 disappears, then the hanging ring 3 is rotated, and the hanging ring 3 is lifted, so that the traction pin 2 is disengaged.
The utility model also provides a tractor, include a pull self-lock device.
Wherein, the traction frame 1 is connected with the frame of the tractor.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning 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 preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. A traction self-locking device comprises a traction frame (1) and a traction pin (2), wherein the lower end of the traction pin (2) can slidably penetrate through the traction frame (1), and the traction self-locking device is characterized by further comprising a hanging ring (3) and a lock tongue (4), wherein the hanging ring (3) is rotatably arranged at the upper end of the traction pin (2), and the lock tongue (4) is rotatably arranged on the traction frame (1); the lock tongue (4) can rotate to abut against the hanging ring (3) and limit the hanging ring (3) to rotate, or rotate to avoid the hanging ring (3).
2. The traction self-locking device according to claim 1, wherein the lower part of the lock tongue (4) is provided with an arc surface (401), the radius of rotation of the arc surface (401) is R, the radius of rotation of the suspension loop (3) is R, the distance between the rotating shaft of the suspension loop (3) and the rotating shaft of the lock tongue (4) is D, and D + R is greater than R.
3. A towing self-locking device according to claim 2, characterised in that the upper part of the bolt (4) on the side remote from the towing pin (2) has a guide plane (402).
4. The traction self-locking device according to claim 3, wherein the locking tongue (4) is a sector, and the center of the sector is rotatably connected with the traction frame (1).
5. A traction self-locking device according to any one of claims 1-4, characterized by further comprising a spring pin (5), wherein the spring pin (5) is detachably connected with the lower end of the traction pin (2).
6. A traction self-locking device according to any one of claims 1-4, wherein the upper end of the traction pin (2) is provided with a head (201), the suspension loop (3) is rotatably connected with the head (201), and the lower surface of the head (201) is abutted with the traction frame (1).
7. A traction self-locking device according to any one of claims 1-4, wherein the traction frame (1) comprises a bracket (101) and a main frame body (102), one end of the bracket (101) is fixedly connected with the main frame body (102), the other end of the bracket (101) extends to the upper part of the main frame body (102), the lower end of the traction pin (2) sequentially passes through the other end of the bracket (101) and the main frame body (102) in a sliding manner, and the lock tongue (4) is rotatably mounted on the bracket (101).
8. A traction self-locking device according to any one of claims 1 to 4, characterized by further comprising an elastic member, one end of which is connected with the bolt (4) and the other end is connected with the traction frame (1).
9. A tractor comprising a traction lock as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220906976.5U CN217116851U (en) | 2022-04-19 | 2022-04-19 | Traction self-locking device and tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220906976.5U CN217116851U (en) | 2022-04-19 | 2022-04-19 | Traction self-locking device and tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217116851U true CN217116851U (en) | 2022-08-05 |
Family
ID=82649399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220906976.5U Active CN217116851U (en) | 2022-04-19 | 2022-04-19 | Traction self-locking device and tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217116851U (en) |
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2022
- 2022-04-19 CN CN202220906976.5U patent/CN217116851U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee after: Weichai Lovol Intelligent Agricultural Technology Co.,Ltd. Address before: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee before: Weichai leiwo Heavy Industry Co.,Ltd. |