CN214356342U - Maintenance-free pre-tightening type tensioning device - Google Patents
Maintenance-free pre-tightening type tensioning device Download PDFInfo
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- CN214356342U CN214356342U CN202023009502.0U CN202023009502U CN214356342U CN 214356342 U CN214356342 U CN 214356342U CN 202023009502 U CN202023009502 U CN 202023009502U CN 214356342 U CN214356342 U CN 214356342U
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Abstract
The utility model discloses a maintenance-free pre-tightening type tensioning device, which comprises an installation support, a tensioning spring, a screw rod, a sliding support, an adjusting nut and an adjusting washer; the adjustable tensioning device is characterized in that an installation support is fixedly connected to one end of the screw, the installation support is fixedly connected with a sliding block on the tensioning wheel, an adjusting nut is connected to the other end of the screw through threads, a sliding support and a tensioning spring are sleeved on the outer side of the screw in a penetrating mode, one end of the tensioning spring abuts against the side end of the installation support, the other end of the tensioning spring abuts against the side end of the sliding support, the sliding support can slide axially along the screw, the adjusting nut is located on one side, far away from the tensioning spring, of the sliding support, the sliding support is provided with a step shaft, an adjusting washer is embedded on the step shaft in a clamping mode, and the adjusting washer is used for adjusting the installation length of the tensioning device. The utility model discloses rational in infrastructure, convenient to use, the effect is reliable, greatly reduced use cost.
Description
The technical field is as follows:
the utility model relates to a track overspeed device tensioner technical field of crawler-type walking machine, concretely relates to non-maintaining pretension formula overspeed device tensioner.
Background art:
the tensioning device is an important part in a walking mechanism of the crawler-type walking machine, bears a large load, ensures the stability of the operation of the crawler and has a guiding function. The existing track tensioning device is generally a tensioning device with a tensioning cylinder, and the basic structure of the existing track tensioning device comprises: the tensioning degree of the track is mainly adjusted by the tensioning oil cylinder, and the manufacturing and maintenance costs of the tensioning oil cylinder are high.
The utility model has the following contents:
the utility model aims at solving foretell technical problem, provide a no tensioning hydro-cylinder, it is with low costs, and need not frequently carry out the non-maintaining pretension formula overspeed device tensioner who adjusts in the use.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:
a maintenance-free pre-tightening type tensioning device comprises an installation support, a tensioning spring, a screw, a sliding support, an adjusting nut and an adjusting washer; the adjustable tensioning device is characterized in that an installation support is fixedly connected to one end of the screw, the installation support is fixedly connected with a sliding block on the tensioning wheel, an adjusting nut is connected to the other end of the screw through threads, a sliding support and a tensioning spring are sleeved on the outer side of the screw in a penetrating mode, one end of the tensioning spring abuts against the side end of the installation support, the other end of the tensioning spring abuts against the side end of the sliding support, the sliding support can slide axially along the screw, the adjusting nut is located on one side, far away from the tensioning spring, of the sliding support, the sliding support is provided with a step shaft, an adjusting washer is embedded on the step shaft in a clamping mode, and the adjusting washer is used for adjusting the installation length of the tensioning device.
Furthermore, a first screw is connected to the side wall of the adjusting nut through threads, and the first screw abuts against the screw rod to fasten the adjusting nut and the screw rod.
Furthermore, the fixed connection mode of the mounting support and the screw rod adopts a welding mode, a threaded connection mode, an interference fit mode or an integrated mode.
Furthermore, the mounting support, the tensioning spring, the screw rod, the sliding support, the adjusting nut and the adjusting washer are all made of metal materials.
Furthermore, the adjusting washer and the sliding support are assembled, clamped and connected in an interference fit mode.
Furthermore, a cover plate is detachably connected to the outer wall of the mounting support through a second screw.
The utility model provides a pair of non-maintaining pretension formula overspeed device tensioner has following beneficial effect: the sliding support can slide left and right on the screw rod, and the adjusting nut rotates and moves to drive the sliding support to compress or release the tensioning spring, so that the pre-tightening force of the tensioning spring meets the preset requirement; the outer side of the sliding support cushion is provided with an adjusting washer, the total length of the maintenance-free pre-tightening type tensioning device can meet the installation requirement by increasing or decreasing the thickness of the adjusting washer, and the sag of the crawler belt can meet the design specification. In the maintenance-free pre-tightening tensioning device provided by the utility model, the adjusting washer outside the sliding support is assembled with the sliding support in an interference fit manner, and no extra fastener is needed for fixing, so that the sliding support is more convenient to mount and dismount; lubricating grease is filled between the sliding support and the screw rod, so that sliding abrasion between the sliding support and the screw rod is reduced; the utility model discloses rational in infrastructure, convenient to use, the effect is reliable, greatly reduced use cost.
Description of the drawings:
the following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings:
fig. 1 is a schematic structural view of a maintenance-free pre-tightening type tensioning device provided by the present invention;
fig. 2 is a schematic structural view of a connection state between a maintenance-free pre-tightening type tensioning device and a tensioning wheel provided by the present invention;
fig. 3 is the utility model provides a non-maintaining pretension formula overspeed device tensioner mounted position schematic diagram in crawler-type running gear.
The reference numbers in the figures illustrate: 1. mounting a support; 2. tensioning the spring; 3. a screw; 4. a sliding support; 5. adjusting the nut; 6. an adjusting washer; 7. a first screw; 8. a cover plate; 9. a second screw;
a, a tension wheel; b, a crawler belt; c, a crawler frame; d, a tensioning device.
The specific implementation mode is as follows:
it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as up-down-left-right-front-back … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components in a specific posture (as shown in the drawings) -motion situation, etc., and if the specific posture is changed, the directional indicator is changed accordingly, and the connection may be a direct connection or an indirect connection.
As shown in fig. 1-2, a maintenance-free pre-tightening type tensioning device comprises a mounting support 1, a tensioning spring 2, a screw rod 3, a sliding support 4, an adjusting nut 5 and an adjusting washer 6; the adjustable tensioning device is characterized in that an installation support 1 is fixedly connected to one end of the screw rod 3, the installation support 1 is fixedly connected with a sliding block on the tensioning wheel a, an adjusting nut 5 is connected to the other end of the screw rod 3 through threads, a sliding support 4 and a tensioning spring 2 are sleeved outside the screw rod 3 in a penetrating mode, one end of the tensioning spring 2 abuts against the side end of the installation support 1, the other end of the tensioning spring 2 abuts against the side end of the sliding support 4, the sliding support 4 can axially slide along the screw rod 3, the adjusting nut 5 is located on one side, far away from the tensioning spring 2, of the sliding support 4 is provided with a step shaft, an adjusting washer 6 is embedded on the step shaft in a clamping mode, and the adjusting washer 6 is used for adjusting the installation length of the tensioning device.
Specifically, a first screw 7 is connected to the side wall of the adjusting nut 5 through threads, and the first screw 7 abuts against the screw rod 3 to fasten the adjusting nut 5 and the screw rod 3.
It should be noted that the fixed connection mode of the mounting support 1 and the screw 3 is a welding type, a threaded connection type, an interference fit type or an integrated type.
Specifically, the mounting support 1, the tension spring 2, the screw rod 3, the sliding support 4, the adjusting nut 5 and the adjusting washer 6 are all made of metal materials.
Specifically, the adjusting washer 6 and the sliding support 4 are assembled, clamped and connected in an interference fit manner.
Specifically, the outer wall of the mounting support 1 is detachably connected with a cover plate 8 through a second screw 9. Foreign matter is prevented from falling into the spring by the provision of the cover plate 8.
With the above technical solution, in use, as shown in fig. 1-3, the utility model provides an among the non-maintaining pretension formula overspeed device tensioner d slider fixed connection on installing support 1 and take-up pulley a, sliding support 4 alternates in track frame c among the crawler traveling device and carries out size adjustment erection joint through adjusting washer 6, and take-up pulley a butt is carried out the tensioning to track b on track b. The sliding support 4 can slide left and right on the screw rod 3, and the adjusting nut 5 rotates to drive the sliding support 4 to compress or release the tensioning spring 2, so that the pre-tightening force of the tensioning spring 2 meets the preset requirement; the adjusting washer 6 is arranged on the outer side of the sliding support 4 pad, the total length of the maintenance-free pre-tightening type tensioning device can meet the installation requirement by increasing or decreasing the thickness of the adjusting washer 6, and the sag of the crawler belt can meet the design specification. In the maintenance-free pre-tightening tensioning device provided by the utility model, the adjusting washer 6 outside the sliding support 4 is assembled with the sliding support 4 in an interference fit manner, and no extra fastener is needed for fixing, so that the sliding support 4 is more convenient to mount and dismount; the sliding abrasion between the sliding support 4 and the screw rod 3 is reduced by filling lubricating grease between the sliding support and the screw rod.
The foregoing shows and describes the general principles, essential features, and features of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the description of the above embodiments and the description is only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and these changes and modifications are all within the scope of the present invention as claimed. The scope of the invention is to be protected by the following claims and their equivalents.
Claims (6)
1. The utility model provides a non-maintaining pretension formula overspeed device tensioner which characterized in that: the device comprises a mounting support (1), a tension spring (2), a screw rod (3), a sliding support (4), an adjusting nut (5) and an adjusting washer (6); one end of the screw rod (3) is fixedly connected with an installation support (1), the installation support (1) is fixedly connected with a sliding block on the tension wheel, the other end of the screw rod (3) is connected with an adjusting nut (5) through threads, a sliding support (4) and a tension spring (2) are sleeved outside the screw rod (3), one end of the tension spring (2) is abutted against the side end of the mounting support (1), the other end of the tension spring (2) is abutted against the side end of the sliding support (4), the sliding support (4) can axially slide along the screw rod (3), the adjusting nut (5) is positioned on one side of the sliding support (4) far away from the tension spring (2), the sliding support (4) is provided with a step shaft, an adjusting washer (6) is embedded on the step shaft in a clamping mode, and the adjusting washer (6) is used for adjusting the installation length of the tensioning device.
2. A maintenance-free pre-tensioned tensioning device as recited in claim 1 wherein: the side wall of the adjusting nut (5) is connected with a first screw (7) through threads, the first screw (7) is abutted against the screw rod (3) to fasten the adjusting nut (5) and the screw rod (3).
3. A maintenance-free pre-tensioned tensioning device as recited in claim 1 wherein: the mounting support (1) and the screw (3) are fixedly connected in a welding mode, a threaded connection mode, an interference fit mode or an integrated mode.
4. A maintenance-free pre-tensioned tensioning device as recited in claim 1 wherein: the mounting support (1), the tensioning spring (2), the screw rod (3), the sliding support (4), the adjusting nut (5) and the adjusting washer (6) are all made of metal materials.
5. A maintenance-free pre-tensioned tensioning device as recited in claim 1 wherein: the adjusting washer (6) and the sliding support (4) are assembled, clamped and connected in an interference fit mode.
6. A maintenance-free pre-tensioned tensioning device as recited in claim 1 wherein: the outer wall of the mounting support (1) is detachably connected with a cover plate (8) through a second screw (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023009502.0U CN214356342U (en) | 2020-12-14 | 2020-12-14 | Maintenance-free pre-tightening type tensioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023009502.0U CN214356342U (en) | 2020-12-14 | 2020-12-14 | Maintenance-free pre-tightening type tensioning device |
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| Publication Number | Publication Date |
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| CN214356342U true CN214356342U (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023009502.0U Active CN214356342U (en) | 2020-12-14 | 2020-12-14 | Maintenance-free pre-tightening type tensioning device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117048730A (en) * | 2023-10-11 | 2023-11-14 | 中国核工业二四建设有限公司 | Crawler-type wall climbing welding robot |
-
2020
- 2020-12-14 CN CN202023009502.0U patent/CN214356342U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117048730A (en) * | 2023-10-11 | 2023-11-14 | 中国核工业二四建设有限公司 | Crawler-type wall climbing welding robot |
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