CN218557938U

CN218557938U - Caterpillar track tensioning mechanism

Info

Publication number: CN218557938U
Application number: CN202222395413.7U
Authority: CN
Inventors: 杨煜新; 何二君; 许丰
Original assignee: Guangdong Jinming Machinery Co Ltd
Current assignee: Guangdong Jinming Machinery Co Ltd
Priority date: 2022-09-08
Filing date: 2022-09-08
Publication date: 2023-03-03
Anticipated expiration: 2032-09-08

Abstract

The utility model discloses a caterpillar track straining device, fixed frame set up in the track of caterpillar track, and are located the caterpillar track entry end, are provided with movable track roof beam and driving piece in the fixed frame, and the tensioning subassembly is including setting up track board A on movable track roof beam and setting up the track board B on fixed frame, and track board A corresponds with track board B and pegs graft, but and relative slip. The movable track beam is driven by the driving piece to slide on the fixed frame, and then the movable track beam drives the track plate A to slide back and forth relative to the track plate B, so that the caterpillar can be loosened, and tensioning adjustment of the caterpillar is achieved. Compare traditional caterpillar track system tensioning and mostly be entry carousel subassembly and export carousel subassembly global movement, realize the setting of tensioning through increaseing the distance between the access & exit carousel, overspeed device tensioner in this application can hide inside the track, and the structure is arranged compactly, and space utilization is high, and the maintenance of being convenient for is changed with the dismantlement, and the thrust utilization of hydro-cylinder is high, has more the economic nature.

Description

Caterpillar track tensioning mechanism

Technical Field

The utility model relates to a film processing technology field, concretely relates to caterpillar track straining device.

Background

The transverse stretcher is an indispensable key component in the film biaxial stretching equipment. The transverse stretcher clamps two ends of the film through chain clamps uniformly distributed on the track, tensions and adjusts the chain track, stretches the film in the direction perpendicular to the advancing direction of the film path through the change of the track path, and circularly heats the film by utilizing a closed oven structure to enable plastic molecules to enter a high elastic state, so that the width of a product is changed, and the mechanical property of the product is improved. The traditional caterpillar track system tensioning is that an inlet turntable assembly and an outlet turntable assembly move integrally, and tensioning is realized by increasing the distance between inlet and outlet turntables, so that later maintenance, disassembly and replacement are inconvenient, and the occupied area is large; meanwhile, the caterpillar track tensioning and adjusting device is mostly arranged outside the track, and the caterpillar track system is not compact enough in structure and low in space utilization rate.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in that the overspeed device tensioner occupation space of the transverse stretching machine among the prior art is big, and the structure is complicated, it is comparatively inconvenient to maintain the change to a caterpillar track straining device is provided.

In order to solve the technical problem, the technical scheme of the utility model as follows:

a caterpillar tensioning mechanism comprising:

the fixed frame is arranged in the track of the caterpillar track and is positioned at the inlet end of the caterpillar track;

the movable track beam is slidably arranged at one end in the fixed frame;

the driving piece is arranged at the other end in the fixed frame and is connected between the movable track beam and the fixed frame;

tensioning subassembly, including setting up track board A on the movable track roof beam and setting are in the track board B of fixed frame's the other end, track board A with track board B corresponds the grafting, just track board A with track board B slidable relatively.

Furthermore, a chain clamp sleeved at the joint of the track plate A and the track plate B is arranged between the track plate A and the track plate B.

Furthermore, a linear guide rail is fixed on the fixed frame, a sliding block is fixed on the movable track beam, and the sliding block is arranged on a sliding groove of the linear guide rail in a sliding mode.

Furthermore, the linear guide rails are provided with at least two linear guide rails on the same fixed frame, and the sliding blocks are installed on the two linear guide rails.

Furthermore, two ends of the driving piece are respectively and rotatably installed at the ends of the movable track beam and the fixed frame.

Furthermore, the driving piece is an oil cylinder.

Further, the flexible end of hydro-cylinder rotates and installs movable track roof beam is last, the stiff end of hydro-cylinder rotates and installs on the fixed frame.

Further, the flexible end of hydro-cylinder rotates and installs on the fixed frame, the stiff end of hydro-cylinder rotates and installs on the movable track roof beam.

Furthermore, a limiting sliding groove is formed in the track plate A, and one end of the track plate B is arranged in the limiting sliding groove in a sliding mode.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a caterpillar track straining device can drive movable track roof beam through the driving piece and slide on fixed frame, and then drives track board A relative track board B through movable track roof beam and slide, can take up the caterpillar track when track board A slides towards track board B, when track board A keeps away from track board B and slides, can transfer the pine caterpillar track to this realizes the tensioning to the caterpillar track and adjusts. Compare traditional caterpillar track system tensioning and mostly be entry carousel subassembly and export carousel subassembly moving as a whole, realize the setting of tensioning through increaseing the distance between the access & exit carousel, overspeed device tensioner in this application can hide inside the track, structural arrangement is more compact, space utilization is high, contrast simultaneously and play the entry and carry out the complicated tensioning structure of tradition that moving as a whole, this application structure is convenient for maintain and dismantle the change, and the thrust utilization ratio of hydro-cylinder is high, the hydro-cylinder is compared in other drive forms, high efficiency, power has certain flexibility, possess certain buffering effect, it has economic nature to compare the selection simultaneously.

2. The utility model provides a chain track straining device is provided with the chain pincers of cover at track board A and track board B junction between track board A and the track board B, so sets up, can be so that track board A and track board B keep smooth motion when the mutual displacement, avoid the chain pincers to take place the derailment phenomenon between track board A and track board B simultaneously.

3. The utility model provides a caterpillar track straining device, linear guide are provided with two at least on same fixed frame, and the slider is installed on two linear guide. So set up, compare the great linear guide of a holistic length, use two linear guide, can strengthen and alleviate more weight, avoid the whole quality of caterpillar track overweight and sensitivity when influencing the caterpillar track motion.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a three-dimensional structure diagram of a caterpillar track tensioning mechanism provided by the embodiment of the present invention;

fig. 2 is a schematic structural view of a caterpillar track tensioning mechanism provided in the embodiment of the present invention;

FIG. 3 is a schematic view of the connection relationship between the caterpillar track tensioning mechanism and the caterpillar track in the present embodiment;

fig. 4 is a schematic structural diagram of the entrance end of the chain track in this embodiment.

Description of the reference numerals: 0. a caterpillar track tensioning mechanism; 1. a fixed frame; 2. a movable track beam; 3. a linear guide rail; 4. an oil cylinder; 5. a track plate A; 6. a track plate B; 7. chain tongs; 8. a slider; 9. a limiting chute; 10. an inlet end; 11. an outlet end; 12. and (4) a caterpillar track.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships 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 and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to 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.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

A caterpillar tensioning mechanism as shown in figures 1-4 comprises a fixed frame 1, a movable track beam 2, a drive member and a mounting assembly. Specifically, the fixed frame 1 is arranged in the track of the caterpillar 12 and is positioned at the inlet end 10 of the caterpillar 12; the movable track beam 2 is arranged at one end in the fixed frame 1 in a sliding way; the driving piece is arranged at the other end in the fixed frame 1 and is connected between the movable track beam 2 and the fixed frame 1; the tensioning assembly comprises a track plate A5 arranged on the movable track beam 2 and a track plate B6 arranged at the other end of the fixed frame 1, wherein the track plate A5 and the track plate B6 are correspondingly inserted, and the track plate A5 and the track plate B6 can slide relatively.

This kind of caterpillar tensioning mechanism can drive movable track roof beam 2 through the driving piece and slide on fixed frame 1, and then drives track board A5 through movable track roof beam 2 and slide relative track board B6, can take up caterpillar 12 when track board A5 slides towards track board B6, when track board A5 keeps away from track board B6 and slides, can transfer loose caterpillar 12 to this realizes tensioning to caterpillar 12 and adjusts. Compare 12 system tensionings of traditional caterpillar track mostly entry carousel subassembly and export carousel subassembly moving as a whole, realize the setting of tensioning through increaseing the distance between the access & exit carousel, caterpillar track straining device 0 in this application can hide inside the track, structural arrangement is more compact, space utilization is high, contrast simultaneously and play the entry and carry out the complicated straining device of tradition that moving as a whole, caterpillar track straining device 0 of this application is convenient for maintain and dismantles the change, and hydro-cylinder 4's thrust utilization ratio is high, hydro-cylinder 4 compares in other drive forms, high efficiency, power has certain flexibility, possess certain buffering effect, it has more economic nature to compare simultaneously to select.

In this embodiment, a chain clip 7 sleeved at the joint of the track plate A5 and the track plate B6 is disposed between the track plate A5 and the track plate B6 of the same chain rail tensioning mechanism 0, so that the track plate A5 and the track plate B6 can keep smooth movement when moving relative to each other, and the derailment of the chain clip between the track plate A5 and the track plate B6 can be avoided. Specifically, a limiting sliding groove 9 is formed in the track plate A5, and one end of the track plate B6 is slidably disposed in the limiting sliding groove 9.

In the present embodiment, the fixed frame 1 is fixed with the linear guide 3, the movable rail beam 2 is fixed with the slider 8, and the slider 8 is slidably disposed on the sliding groove of the linear guide 3. At least two linear guide rails 3 are arranged on the same fixed frame 1, and the sliding blocks 8 are arranged on the two linear guide rails 3. So set up, compare the great linear guide 3 of a holistic length, use two linear guide 3, can strengthen and alleviate more weight, avoid caterpillar 12 whole quality overweight and influence the sensitivity when caterpillar 12 moves.

In the embodiment, the driving member is embodied as an oil cylinder 4, and both ends of the oil cylinder 4 are respectively rotatably mounted on the movable track beam 2 and the end of the fixed frame 1. The telescopic end of the oil cylinder 4 is rotatably arranged on the movable track beam 2, and the fixed end of the oil cylinder 4 is rotatably arranged on the fixed frame 1. In an alternative embodiment, the telescopic end of the cylinder 4 is rotatably mounted on the fixed frame 1, and the fixed end of the cylinder 4 is rotatably mounted on the movable track beam 2.

The working principle is as follows: when the two groups of the chain tongs 7 are arranged in a row on the whole track, the chain tongs can be regarded as an overlong chain, and therefore the chain track 12 can smoothly run just like a common chain by being tensioned. The track 12 tensioning mechanism of the present invention is designed at the outer track 12 near the entry end 10, as shown in fig. 3-4. Structurally, a separated track beam is adopted, referring to fig. 1-2, a movable track beam 2 is hung in a fixed frame 1 through a linear guide rail 3 and a sliding block 8, the movement of the movable track beam 2 is controlled through an oil cylinder 4, meanwhile, a tensioning assembly is disassembled into two parts, a track plate A5 is fixed with the movable track beam 2, a track plate B6 is fixed with the fixed frame 1, and meanwhile, a splicing structure, namely a chain clamp 7, is designed at the position where the tensioning assembly is separated as shown in fig. 1-2, so that when the track plate A5 and the track plate B6 move mutually, the track plate A5 and the track plate B6 can be kept to move smoothly and do not derail through the chain clamp 7. During operation, the oil cylinder 4 is ejected out at a set pressure, is transmitted to the track plate through the movable track beam 2, and the integral caterpillar 12 is tensioned and adjusted by the sliding insertion between the track plate A5 and the track plate B6.

In summary, in the track tensioning mechanism, the driving member can drive the movable track beam 2 to slide on the fixed frame 1, and further the movable track beam 2 drives the track plate A5 to slide relative to the track plate B6, so that the track 12 can be tensioned when the track plate A5 slides towards the track plate B6, and the track 12 can be loosened when the track plate A5 slides away from the track plate B6, thereby tensioning and adjusting the track 12. Compare 12 system tensionings of traditional caterpillar track mostly entry carousel subassembly and export carousel subassembly moving as a whole, realize the setting of tensioning through increaseing the distance between the access & exit carousel, caterpillar track straining device 0 in this application can hide inside the track, structural arrangement is more compact, space utilization is high, contrast simultaneously and play the entry and carry out the complicated straining device of tradition that moving as a whole, caterpillar track straining device 0 of this application is convenient for maintain and dismantles the change, and hydro-cylinder 4's thrust utilization ratio is high, hydro-cylinder 4 compares in other drive forms, high efficiency, power has certain flexibility, possess certain buffering effect, it has more economic nature to compare simultaneously to select.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A caterpillar tensioning mechanism, comprising:

the fixed frame (1) is arranged in the track of the caterpillar track and is positioned at the inlet end (10) of the caterpillar track;

the movable track beam (2) is arranged at one end in the fixed frame (1) in a sliding mode;

the driving piece is arranged at the other end in the fixed frame (1) and is connected between the movable track beam (2) and the fixed frame (1);

tensioning subassembly, including setting up track board A (5) on movable track roof beam (2) and setting are in the track board B (6) of the other end of fixed frame (1), track board A (5) with track board B (6) correspond pegs graft, just track board A (5) with track board B (6) slidable relatively.

2. The chain track tensioning mechanism according to claim 1, characterized in that a chain clamp (7) sleeved at the connection position of the track plate A (5) and the track plate B (6) is arranged between the track plate A (5) and the track plate B (6).

3. Caterpillar tensioning mechanism according to claim 1, characterized in that a linear guide (3) is fixed to the fixed frame (1), a slide (8) is fixed to the movable track beam (2), and the slide (8) is slidably arranged on a sliding groove of the linear guide (3).

4. Caterpillar tensioning mechanism according to claim 3, characterized in that the linear guides (3) are provided at least two on the same fixed frame (1), the slide (8) being mounted on both linear guides (3).

5. Caterpillar tensioning mechanism according to claim 1, characterized in that the driving element is mounted in rotation at its two ends at the ends of the movable track beam (2) and the fixed frame (1), respectively.

6. Caterpillar tensioning mechanism according to claim 1, characterized in that the drive is a cylinder (4).

7. Caterpillar tensioning mechanism according to claim 6, characterized in that the telescopic end of the cylinder (4) is rotatably mounted on the movable track beam (2) and the fixed end of the cylinder (4) is rotatably mounted on the fixed frame (1).

8. Caterpillar tensioning mechanism according to claim 6, characterized in that the telescopic end of the cylinder (4) is rotatably mounted on the fixed frame (1) and the fixed end of the cylinder (4) is rotatably mounted on the movable track beam (2).

9. The caterpillar tensioning mechanism according to claim 1, wherein a limiting sliding groove (9) is formed in the track plate a (5), and one end of the track plate B (6) is slidably disposed in the limiting sliding groove (9).