Track tensioning device

Abstract

This utility model discloses a track tensioning device, including a track beam, a hydraulic cylinder assembly, a spring assembly, and a wheel assembly. The hydraulic cylinder assembly is fixed on the track beam and provides adjustment power. The spring assembly is slidably mounted on the track beam and connected to the output end of the hydraulic cylinder assembly. The wheel assembly is slidably mounted on the track beam and connected to the spring assembly, used to connect with the track and protect and adjust it. The spring assembly includes a sliding frame, a compression spring, a piston rod, a fixing nut, and a mounting bracket. One end of the compression spring abuts against the sliding frame, one end of the piston rod passes through the compression spring and is welded to the sliding frame, the mounting bracket abuts against the other end of the compression spring, and the other end of the piston rod passes through the mounting bracket and is threadedly engaged with the fixing nut. The piston rod and the mounting bracket are slidably connected. This utility model has a simple overall structure, ensures that the track is not damaged when encountering resistance, and quickly tensions the track after overcoming resistance, preventing it from slipping off, effectively improving work efficiency and reducing operating costs.

Description

Technical Field

[0001] This utility model belongs to the field of track tensioning technology, and in particular relates to a track tensioning device. Background Technology

[0002] The track tensioning device is the main device for adjusting track tension to maintain normal transmission and load-bearing of the track rings. In the existing technology, hydraulic cylinders are often used to drive tensioning wheels to adjust track tension. Since the track often encounters resistance during track movement, excessive track tension can easily cause track damage, while excessive track looseness can lead to track slippage, seriously affecting work efficiency. In the long run, it can also damage the hydraulic cylinder, thereby increasing the cost of use. Utility Model Content

[0003] To address some or all of the technical problems existing in the prior art, this utility model provides a track tensioning device comprising a track beam, a hydraulic cylinder assembly, a spring assembly, and a wheel assembly. The hydraulic cylinder assembly is fixed to the track beam and provides adjustment power. The spring assembly is slidably mounted on the track beam and connected to the output end of the hydraulic cylinder assembly. The wheel assembly is slidably mounted on the track beam and connected to the spring assembly, and is used to connect with the track for protection and adjustment.

[0004] The spring assembly includes a sliding frame, a compression spring, a piston rod, a fixing nut, and a mounting bracket. One end of the compression spring abuts against the sliding frame, one end of the piston rod passes through the compression spring and is welded to the sliding frame, the mounting bracket abuts against the other end of the compression spring, and the other end of the piston rod passes through the mounting bracket and is threadedly engaged with the fixing nut. The piston rod is slidably connected to the mounting bracket.

[0005] Furthermore, in the above-mentioned track tensioning device, a hydraulic cylinder positioning plate is longitudinally arranged in the middle of the track beam, a support plate is transversely arranged on the side of the track beam near the hydraulic cylinder positioning plate, and slide rails are symmetrically arranged on the track beam from the side near the support plate to the end of the track beam.

[0006] Furthermore, in the above-mentioned track tensioning device, the hydraulic cylinder assembly includes a hydraulic cylinder, a hydraulic cylinder mounting plate, and a hydraulic cylinder support plate. The hydraulic cylinder mounting plate is disposed at the end of the hydraulic cylinder, one side of the hydraulic cylinder mounting plate abuts against the cylinder positioning plate, the lower end of the hydraulic cylinder mounting plate is welded to the support slide plate, and the hydraulic cylinder support plate is disposed at the front end of the hydraulic cylinder and welded to the support slide plate.

[0007] Furthermore, in the above-mentioned track tensioning device, the piston rod is fixedly connected to the output end of the hydraulic cylinder, and the sliding frame is slidably connected to the support plate.

[0008] Furthermore, in the above-mentioned track tensioning device, the wheel assembly includes a wheel frame, a slider, a connecting bolt, and a wheel. The slider is symmetrically arranged on the upper and lower sides of the wheel frame. The slider is slidably connected to the slide rail. One end of the wheel frame is fixedly connected to the mounting bracket through the connecting bolt. The wheel is rotatably mounted on the other end of the wheel frame.

[0009] The track tensioning device of this utility model has the following advantages and beneficial effects:

[0010] This utility model has a simple overall structure. The spring assembly ensures that the track will not be damaged when it encounters resistance. After overcoming resistance, the track can be quickly brought into a tensioned state to prevent it from falling off, which effectively improves work efficiency and reduces operating costs. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for further understanding of the embodiments of the present invention and constitute a part of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0012] Figure 1 This is a schematic diagram of the overall structure of the track tensioning device of this utility model;

[0013] Figure 2 This is a schematic diagram of the connection structure of the hydraulic cylinder assembly, spring assembly and wheel assembly of the track tensioning device of this utility model;

[0014] Figure 3 This is a schematic diagram of the track beam structure of the track tensioning device of this utility model.

[0015] Explanation of reference numerals in the attached figures:

[0016] 1: Track beam; 11: Positioning plate; 12: Support plate; 13: Slide rail;

[0017] 2: Hydraulic cylinder assembly; 21: Hydraulic cylinder; 22: Hydraulic cylinder mounting plate; 23: Hydraulic cylinder support plate;

[0018] 3: Spring assembly; 31: Sliding bracket; 32: Compression spring; 33: Piston rod; 34: Fixing nut; 35: Mounting bracket;

[0019] 4: Wheel assembly, 41: Wheel frame, 42: Slider, 43: Connecting bolt, 44: Wheel. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] like Figures 1 to 3 As shown, the track tensioning device of this utility model includes a track beam 1, a hydraulic cylinder assembly 2, a spring assembly 3, and a wheel assembly 4. The hydraulic cylinder assembly 2 is fixed on the track beam 1 and provides adjustment power. The spring assembly 3 is slidably mounted on the track beam 1 and connected to the output end of the hydraulic cylinder assembly 2. The wheel assembly 4 is slidably mounted on the track beam 1 and connected to the spring assembly 3, and is used to connect with the track for protection and adjustment.

[0022] The spring assembly 3 includes a sliding frame 31, a compression spring 32, a piston rod 33, a fixing nut 34, and a mounting bracket 35. One end of the compression spring 32 abuts against the sliding frame 31, one end of the piston rod 33 passes through the compression spring 32 and is welded to the sliding frame 31, the mounting bracket 35 abuts against the other end of the compression spring 32, and the other end of the piston rod 33 passes through the mounting bracket 35 and is threadedly engaged with the fixing nut 34. The piston rod 33 and the mounting bracket 35 are slidably connected.

[0023] Furthermore, in the above-mentioned track tensioning device, a hydraulic cylinder positioning plate 11 is longitudinally arranged in the middle of the track beam 1, a support plate 12 is transversely arranged on the side of the track beam 1 near the hydraulic cylinder positioning plate 11, and slide rails 13 are symmetrically arranged on the track beam 1 from the side near the support plate 12 to the end of the track beam 1, thereby effectively ensuring the connection between the hydraulic cylinder assembly 2, the spring assembly 3 and the wheel assembly 4 and the track beam 1.

[0024] Furthermore, in the aforementioned track tensioning device, the hydraulic cylinder assembly 2 includes a hydraulic cylinder 21, a hydraulic cylinder mounting plate 22, and a hydraulic cylinder support plate 23. The hydraulic cylinder mounting plate 22 is located at the end of the hydraulic cylinder 21, one side of the hydraulic cylinder mounting plate 22 abuts against the cylinder positioning plate 11, and the lower end of the hydraulic cylinder mounting plate 22 is welded to the support slide plate 12. The hydraulic cylinder support plate 23 is located at the front end of the hydraulic cylinder 21 and welded to the support slide plate 12, thereby effectively ensuring that the hydraulic cylinder 21 can smoothly output and adjust power.

[0025] Furthermore, in the aforementioned track tensioning device, the piston rod 33 is fixedly connected to the output end of the hydraulic cylinder 21, and the sliding frame 31 is slidably connected to the support plate 12, thereby effectively ensuring that the spring assembly 3 can work smoothly and steadily, and avoiding radial runout during operation.

[0026] Furthermore, in the aforementioned track tensioning device, the wheel assembly 4 includes a wheel frame 41, a slider 42, a connecting bolt 43, and a wheel 44. The slider 42 is symmetrically arranged on the upper and lower sides of the wheel frame 41 and is slidably connected to the slide rail 13. One end of the wheel frame 41 is fixedly connected to the mounting bracket 35 through the connecting bolt 43, and the wheel 44 is rotatably mounted on the other end of the wheel frame 41. This effectively ensures that the wheel frame 41 can drive the wheel 44 to extend and retract smoothly, and avoids the wheel 44 from shifting due to resistance when the track is obstructed.

[0027] Specifically, during use, the hydraulic cylinder assembly 2, spring assembly 3, and wheel assembly 4 are first installed sequentially at the corresponding positions on the track beam 1. The fixing nut 34 is then adjusted according to the working road surface conditions to ensure the compression spring 32 is in a properly compressed state. At this point, the hydraulic cylinder 21 is in its initial state, and the track passes over the wheel 44. Based on the track sag measurement standard, the output end of the hydraulic cylinder 21 is extended, pushing the spring assembly 3 and wheel assembly 4 to tension the track to meet the standard requirements. During this process, the sliding frame moves as the spring assembly 3 moves. 31 slides along the support plate, and the mounting frame 35 moves accordingly under the force of the compression spring 32, which drives the wheel frame 41 mounted on the mounting frame 35 to extend smoothly along the slide rail 13 through the slider 42 to tension the track. When the track is obstructed, the pressure is transmitted to the mounting frame 35 through the wheel 44 and the wheel frame 41. At this time, the middle part of the mounting frame 35 slides along the piston rod 33 to compress and contract the compression spring 32. At this time, the track is relaxed, which plays a role in buffering and protecting the track. When the track passes through the obstructed section, the compression spring 32 quickly rebounds, so that the track returns to its original tension.

[0028] In summary, compared with the prior art, the track tensioning device of this utility model has the following advantages and beneficial effects:

[0029] This utility model has a simple overall structure. The spring assembly ensures that the track will not be damaged when it encounters resistance. After overcoming resistance, the track can be quickly brought into a tensioned state to prevent it from falling off, which effectively improves work efficiency and reduces operating costs.

[0030] It should be noted that, unless otherwise expressly specified and limited, the term "connection" or its synonyms should be interpreted broadly in this document. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. Furthermore, expressions such as "first" and "second" are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Meanwhile, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In addition, the terms "front," "rear," "left," "right," "upper," and "lower" in this document refer to the placement states shown in the accompanying drawings.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A track tensioner characterized by, The track tensioning device includes a track beam, a hydraulic cylinder assembly, a spring assembly, and a wheel assembly. The hydraulic cylinder assembly is fixed to the track beam and provides adjustment power. The spring assembly is slidably mounted on the track beam and connected to the output end of the hydraulic cylinder assembly. The wheel assembly is slidably mounted on the track beam and connected to the spring assembly, and is used to connect with the track for protection and adjustment. The spring assembly includes a sliding frame, a compression spring, a piston rod, a fixing nut, and a mounting bracket. One end of the compression spring abuts against the sliding frame, one end of the piston rod passes through the compression spring and is welded to the sliding frame, the mounting bracket abuts against the other end of the compression spring, and the other end of the piston rod passes through the mounting bracket and is threadedly engaged with the fixing nut. The piston rod is slidably connected to the mounting bracket.

2. The track tensioner of claim 1, wherein A hydraulic cylinder positioning plate is longitudinally arranged in the middle of the track beam, and a support plate is laterally arranged on the side of the track beam near the hydraulic cylinder positioning plate. Slide rails are symmetrically arranged on the track beam from the side near the support plate to the end of the track beam.

3. The track tensioner of claim 2, wherein, The hydraulic cylinder assembly includes a hydraulic cylinder, a hydraulic cylinder mounting plate, and a hydraulic cylinder support plate. The hydraulic cylinder mounting plate is located at the end of the hydraulic cylinder, and one side of the hydraulic cylinder mounting plate abuts against the cylinder positioning plate. The lower end of the hydraulic cylinder mounting plate is welded to the support slide plate, and the hydraulic cylinder support plate is located at the front end of the hydraulic cylinder and welded to the support slide plate.

4. The track tensioner of claim 3, wherein, The piston rod is fixedly connected to the output end of the hydraulic cylinder, and the sliding frame is slidably connected to the support plate.

5. The track tensioner of claim 2, wherein, The wheel assembly includes a wheel frame, a slider, a connecting bolt, and a wheel. The slider is symmetrically arranged on the upper and lower sides of the wheel frame and is slidably connected to the slide rail. One end of the wheel frame is fixedly connected to the mounting bracket through the connecting bolt, and the wheel is rotatably mounted on the other end of the wheel frame.

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