CN220009947U - Elastic tensioning device for crawler belt - Google Patents
Elastic tensioning device for crawler belt Download PDFInfo
- Publication number
- CN220009947U CN220009947U CN202321472598.5U CN202321472598U CN220009947U CN 220009947 U CN220009947 U CN 220009947U CN 202321472598 U CN202321472598 U CN 202321472598U CN 220009947 U CN220009947 U CN 220009947U
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- tensioning
- rod
- tensioning device
- elastic
- positioning seat
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- 210000001503 joint Anatomy 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000004575 stone Substances 0.000 description 3
- 230000008093 supporting effect Effects 0.000 description 2
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a crawler elastic tensioning device, and belongs to the field of agricultural machinery. The guide rod is matched with the guide wheel; comprising the following steps: the guide sleeve is fixed on the frame and used for guiding and positioning the guide rod; the tensioning device is fixed on the frame; the elastic pressing plate structure is used for removing the excessive tension force applied by the guide wheel and is connected with the guide rod; the positioning seat can move relative to the tensioning device in the axial direction; the connecting structure is used for fixedly connecting the elastic pressing plate structure to the positioning seat. The utility model has the beneficial effect of providing the elastic crawler tensioning device with a simple structure.
Description
Technical Field
The utility model relates to the technical field of agricultural machinery, in particular to a crawler elastic tensioning device.
Background
The crawler, especially farm rubber crawler tractor for paddy field, when working in paddy field, the stone with high hardness is easy to clamp the engagement of crawler and guide wheel, and then the tension of crawler increases sharply, so that the wheel train, crawler and other parts are damaged or even damaged. The thick springs used by the traditional metal crawler tractor are limited in space, and when the thick springs are installed on an agricultural triangular crawler truck, the complex degree and the weight of the truck body are increased by matched hydraulic pressure and supporting pieces, so that a series of secondary problems such as increased truck body faults, increased ground specific pressure, increased maintenance and replacement difficulty, greatly increased cost and the like can be caused. For this reason, there is an urgent need for a track tensioning device having a simple structure.
Disclosure of Invention
The summary of the utility model is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. The summary of the utility model is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
In order to solve the technical problems mentioned in the background section above, some embodiments of the present utility model provide a track elastic tensioning device for a crawler, which cooperates with a guide bar of a guide wheel; comprising the following steps:
the guide sleeve is fixed on the frame and used for guiding and positioning the guide rod;
the tensioning device comprises a tensioning rod and a tensioning nut, the tensioning nut is fixed on the frame, and the tensioning rod is in threaded connection with the tensioning nut;
the elastic pressing plate structure is used for removing the excessive tension force applied by the guide wheel and is connected with the guide rod;
the positioning seat is abutted with the tensioning rod;
the connecting structure is used for fixedly connecting the elastic pressing plate structure to the positioning seat.
The elastic pressing plate structure is a plurality of plate springs, and the plate springs are fixed together through a fastening piece.
The connecting structure comprises a boss arranged on the positioning seat, a plurality of holes arranged on the boss, a U-shaped screw rod and a nut, wherein the elastic pressing plate structure is framed in the U-shaped screw rod, and the end part of the U-shaped screw rod penetrates through the holes and then is connected with the nut.
The U-shaped screws are arranged in two groups, and the two groups of U-shaped screws are arranged along the length of the elastic pressing plate structure.
The positioning seat is provided with a through groove for the tensioning rod to pass through.
One end of the tensioning rod is connected with the tensioning nut, the other end of the tensioning rod is provided with an anti-falling convex part, and the positioning seat is in butt joint with the anti-falling convex part.
The tensioning rod is a screw rod.
The fastening piece is two binding belts which are respectively arranged on the left side and the right side of the plate spring.
The utility model has the beneficial effects that: a track elastic tensioner of simple construction is provided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model, are incorporated in and constitute a part of this specification. The drawings and their description are illustrative of the utility model and are not to be construed as unduly limiting the utility model.
In addition, the same or similar reference numerals denote the same or similar elements throughout the drawings. It should be understood that the figures are schematic and that elements and components are not necessarily drawn to scale.
In the drawings:
FIG. 1 is a schematic view of the structure of the present utility model used with guide wheels and guide rods.
Fig. 2 is a schematic diagram of a second structure of the present utility model used with a guide wheel and a guide bar.
FIG. 3 is an exploded view of an elastic platen structure according to the present utility model.
FIG. 4 is a schematic view of an elastic platen structure according to the present utility model.
Fig. 5 is a schematic structural view of the tensioning structure in the present utility model.
Detailed Description
Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It should be understood that the drawings and embodiments of the present disclosure are for illustration purposes only and are not intended to limit the scope of the present disclosure.
It should be noted that, for convenience of description, only the portions related to the present utility model are shown in the drawings. Embodiments of the present disclosure and features of embodiments may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in this disclosure are merely used to distinguish between different devices, modules, or units and are not used to define an order or interdependence of functions performed by the devices, modules, or units.
It should be noted that references to "one", "a plurality" and "a plurality" in this disclosure are intended to be illustrative rather than limiting, and those of ordinary skill in the art will appreciate that "one or more" is intended to be understood as "one or more" unless the context clearly indicates otherwise.
The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1-5, a track elastic tensioning device, as shown in fig. 1 and 2, is used on a crawler and cooperates with a guide bar 200 of a guide wheel 100 to realize elastic tensioning of the guide wheel track; the device specifically comprises a guide sleeve 1, a tensioning device, an elastic pressing plate structure 3, a positioning seat 4 and a connecting structure. The guide sleeve 1 and the tensioning device are fixedly connected to the frame through welding or screws, the guide sleeve 1 is used for guiding and positioning the guide rod 200, and the elastic pressing plate structure 3 is connected with the guide rod 200 and used for removing redundant tensioning force applied to the guide wheel. The connecting structure is used for fixedly connecting the elastic pressing plate structure 3 to the positioning seat 4. The redundant tensioning force is effectively unloaded through the elastic pressing plate structure 3, the space of the crawler wheel train is saved, the complexity of the crawler tensioning system is not increased, and the disassembly and the replacement are convenient.
As shown in fig. 3 and 4, the elastic pressing plate structure 3 is a plurality of plate springs 31, the plurality of plate springs 31 are stacked together, and both ends are fixed together by a fastener 32. In this embodiment, the fastening member 32 is two bands, which are respectively disposed on the left and right sides of the leaf spring 31, and both ends of the longest leaf spring are respectively and fixedly connected with the guide rod, so that when the guide wheel is subjected to excessive tension, the guide wheel can be transmitted to the leaf spring through the guide rod. The connecting structure comprises a boss 51, an opening 52, a U-shaped screw 53 and a nut 54, wherein the boss 51 is arranged on the positioning seat and is a platy convex part extending out of the lower part of the positioning seat, the opening 52 is arranged on the boss 51, the elastic pressing plate structure 3 is framed in the U-shaped screw 53, and the end part of the U-shaped screw 53 passes through the opening 52 and is connected with the nut 54. The two sets of U-shaped screws 53 are preferably arranged, the four holes 52 are correspondingly arranged, and the two sets of U-shaped screws 53 are distributed along the length of the elastic pressing plate structure 3 to perform stable positioning connection on the elastic pressing plate structure 3. As shown in fig. 5, the tensioning device comprises a tensioning rod 21 and a tensioning nut 22 connected with the tensioning rod 21, the tensioning nut 22 is fixedly connected with the frame, a through groove 41 for the tensioning rod 21 to pass through is formed in the positioning seat 4, and then the positioning seat can move on the tensioning rod 21, and the positioning seat is positioned through the tensioning rod 21. In this embodiment, the tensioning rod 21 is a screw rod, one end of the tensioning rod 21 is in threaded connection with the tensioning nut 22, the other end of the tensioning rod 21 is provided with an anti-falling protrusion 211, the positioning seat 4 is located at a position between the tensioning nut 22 and the anti-falling protrusion 211, the outer end face on the positioning seat 4 is in contact fit with the anti-falling protrusion 211 for force conduction, when the tensioning rod 21 and the tensioning nut 22 are screwed, the tensioning rod 21 is tensioned (namely moves towards the 22 direction), and the end face on the anti-falling protrusion 211 can drive the positioning seat 4 to move towards the nut 22 direction, so that the elastic pressing plate structure 3 and the guide rod 200 can be pushed in a linkage manner.
When the tensioning device is used, the tensioning device for tensioning the crawler belt is assembled and positioned with the positioning seat, the positioning seat is pulled along the tensioning action direction and drives the plate spring, the two ends of the plate spring push the guide rod, and finally the tensioning action of the crawler belt guide wheel is completed. When the stone is clamped between the guide wheel and the track teeth, the track can be tensioned to generate redundant tensioning force, the redundant tensioning force can be transmitted to the plate spring along the guide rod, the plate spring is stressed to be elastically deformed, the redundant tensioning force is further unloaded, and after the stone, the guide wheel and the track teeth are disengaged, the plate spring is restored to the original state, so that the supporting effect can be restored.
The foregoing description is only of the preferred embodiments of the present disclosure and description of the principles of the technology being employed. It will be appreciated by those skilled in the art that the scope of the utility model in the embodiments of the present disclosure is not limited to the specific combination of the above technical features, but encompasses other technical features formed by any combination of the above technical features or their equivalents without departing from the spirit of the utility model. Such as the above-described features, are mutually substituted with (but not limited to) the features having similar functions disclosed in the embodiments of the present disclosure.
Claims (8)
1. The elastic crawler tensioning device is used for a crawler and is matched with a guide rod of a guide wheel; characterized by comprising the following steps:
the guide sleeve is fixed on the frame and used for guiding and positioning the guide rod;
the tensioning device comprises a tensioning rod and a tensioning nut, the tensioning nut is fixed on the frame, and the tensioning rod is in threaded connection with the tensioning nut;
the elastic pressing plate structure is used for removing the excessive tension force applied by the guide wheel and is connected with the guide rod;
the positioning seat is abutted with the tensioning rod;
the connecting structure is used for fixedly connecting the elastic pressing plate structure to the positioning seat.
2. The track elastic tensioning device of claim 1, wherein: the elastic pressing plate structure is a plurality of plate springs, and the plate springs are fixed together through a fastening piece.
3. The track elastic tensioning device of claim 1, wherein: the connecting structure comprises a boss arranged on the positioning seat, a plurality of holes arranged on the boss, a U-shaped screw rod and a nut, wherein the elastic pressing plate structure is framed in the U-shaped screw rod, and the end part of the U-shaped screw rod penetrates through the holes and then is connected with the nut.
4. A track elastic tensioning device according to claim 3, wherein: the U-shaped screws are arranged in two groups, and the two groups of U-shaped screws are arranged along the length of the elastic pressing plate structure.
5. The track elastic tensioning device of claim 1, wherein: the positioning seat is provided with a through groove for the tensioning rod to pass through.
6. The track elastic tensioning device of claim 5, wherein: one end of the tensioning rod is connected with the tensioning nut, the other end of the tensioning rod is provided with an anti-falling convex part, and the positioning seat is in butt joint with the anti-falling convex part.
7. The track elastic tensioning device of claim 6, wherein: the tensioning rod is a screw rod.
8. The track elastic tensioning device of claim 2, wherein: the fastening piece is two binding belts which are respectively arranged on the left side and the right side of the plate spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321472598.5U CN220009947U (en) | 2023-06-09 | 2023-06-09 | Elastic tensioning device for crawler belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321472598.5U CN220009947U (en) | 2023-06-09 | 2023-06-09 | Elastic tensioning device for crawler belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220009947U true CN220009947U (en) | 2023-11-14 |
Family
ID=88671800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321472598.5U Active CN220009947U (en) | 2023-06-09 | 2023-06-09 | Elastic tensioning device for crawler belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220009947U (en) |
-
2023
- 2023-06-09 CN CN202321472598.5U patent/CN220009947U/en active Active
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