CN213870970U

CN213870970U - Chain tensioning device

Info

Publication number: CN213870970U
Application number: CN202022784910.7U
Authority: CN
Inventors: 王光瑞; 苏全明; 刘纯玉; 亓斌; 王中华; 运洪良; 邹元甲; 张引鹏; 张华�; 亓燕君; 田超
Original assignee: Shandong Iron and Steel Co Ltd
Current assignee: Shandong Iron and Steel Co Ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-08-03
Anticipated expiration: 2030-11-27

Abstract

The utility model discloses a chain straining device, including fore-stock and removal claw, the top of fore-stock has processed fore-stock bolt hole and removal claw bolt hole respectively with the top of removal claw, fore-stock bolt hole and removal claw bolt hole are located same level, the fore-stock is through inserting screw rod interconnect in fore-stock bolt hole and removal claw bolt hole with removing the claw, the lower part of fore-stock is provided with fore-stock V type groove, the lower part of removing the claw is provided with removal claw V type groove, one side of fore-stock is provided with the slip track, be provided with the through-hole that matches with the slip track on the removal claw, the slip track inserts in the through-hole and slides in the through-hole, the tip that exposes in the fore-stock bolt hole of screw rod is equipped with first butterfly nut, the tip that exposes in removal claw bolt hole of screw rod is equipped with second butterfly nut. The utility model discloses a chain straining device uses lightly, and is swift convenient, makes things convenient for the chain butt joint operation, has reduced intensity of labour, has reduced the operation personnel.

Description

Chain tensioning device

Technical Field

The utility model belongs to the technical field of mechanical transportation equipment, more specifically relates to a chain straining device.

Background

Manufacturing enterprise needs mechanical transportation equipment such as roller chain to transport or carry the etc. to the product in process of production, and the chain that uses is more, changes whole chain or changes certain chain of chain and links the back, needs the hand chain to make it be in the tensioning state usually, then reuses the chain and adds the wire rope and take-up, makes the chain be in the state that can dock, thereby docks again and accomplish the chain and change. Because the chain block is heavy, pulling the chain block in the horizontal direction is very inconvenient, and the defects are aggravated particularly under the condition of high-altitude operation.

At present, a simple and feasible chain tensioning device is not available, and the chain tensioning device can be used conveniently, quickly and conveniently when chains are handed over.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and solve the problems in the prior art, and provides a chain tensioning device for the chain tensioning device, which comprises a front claw and a movable claw, wherein a front claw bolt hole and a movable claw bolt hole are respectively processed at the top end of the front claw and the top end of the movable claw, the front claw bolt hole and the movable claw bolt hole are positioned at the same horizontal height, the front claw and the movable claw are connected with each other through a screw rod inserted into the front claw bolt hole and the movable claw bolt hole, a front claw V-shaped groove is arranged at the lower part of the front claw, a movable claw V-shaped groove is arranged at the lower part of the movable claw, a sliding track is arranged at one side of the front claw, a through hole matched with the sliding track is arranged on the movable claw, the sliding track is inserted into the through hole and slides in the through hole, and a first butterfly nut is assembled at the end part of the screw rod exposed out of the front claw bolt hole, and a second butterfly nut is assembled at the end part of the screw rod exposed out of the movable claw bolt hole.

Preferably, in the chain tensioner, the front pawl and the moving pawl are machined.

Preferably, in the chain tensioner as described above, the sliding rail is machined with a high roughness grade.

Preferably, in the chain tensioner, the slide rail and the through hole used in cooperation with the slide rail are chamfered.

Compared with the prior art, the utility model discloses a chain straining device has following beneficial effect: the chain tensioning device is light in use, fast and convenient, convenient to maintain and capable of self-locking the chain tensioning device without manual maintenance, facilitates butt joint operation of the chain, reduces labor intensity, reduces operating personnel, is low in manufacturing price, is convenient to carry and long in service life, can be repeatedly used, and indirectly increases working efficiency.

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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only 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 perspective view of the chain tensioner of the present invention;

FIG. 2 is a front view of the chain tensioner of the present invention;

FIG. 3 is a schematic view of the chain tensioner of the present invention in an operating state;

FIG. 4 is a perspective view of the front pawl in the chain tensioner of the present invention;

fig. 5 is a perspective view of the movable claw in the chain tensioner of the present invention.

Description of reference numerals:

1. a first section of a chain to be connected; 2. a first wing nut; 3. a front claw; 4. a screw; 5. a movable claw; 6. a second wing nut; 7. a sliding track; 8. a second section of the chain to be connected; 9. a front claw bolt hole; 10. a front claw V-shaped groove; 11. a movable claw bolt hole; 12. a through hole; 13. and the movable claw is a V-shaped groove.

Detailed Description

To make the purpose, technical solution and advantages of the present invention clearer, it is right to combine the embodiments of the present invention below. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in the figures 1 and 2, respectively, fig. 3, fig. 4 and fig. 5 show, the utility model discloses a chain straining device includes fore paw 3 and removal claw 5, fore paw bolt hole 9 and removal claw bolt hole 11 have been processed respectively on the top of fore paw 3 and the top of removal claw 5, fore paw bolt hole 9 and removal claw bolt hole 11 are located same level, fore paw 3 and removal claw 5 are through inserting screw rod 4 interconnect in fore paw bolt hole 9 and removal claw bolt hole 11, the lower part of fore paw 3 and removal claw 5 is provided with fore paw V type groove 10 and removal claw V type groove 13 respectively, one side of fore paw 3 is provided with slip track 7, be provided with the through-hole 12 that matches with slip track 7 on the removal claw 5, slip track 7 inserts in through-hole 12 and can slide in through-hole 12, the tip that exposes in fore paw bolt hole 9 of screw rod 4 is equipped with first butterfly nut 2, the tip that exposes in removal claw bolt hole 11 of screw rod 4 is equipped with second butterfly nut 6.

The utility model discloses a chain tensioning device's application method does: when the chain tensioning device is required to be used for tensioning the first section 1 of the chain to be jointed and the second section 8 of the chain to be jointed to a butt joint state so as to complete chain butt joint, firstly, a roller of the chain to be jointed is clamped into a V-shaped groove of the chain tensioning device, for example, the roller of the first section 1 of the chain to be jointed is clamped into a front claw V-shaped groove 10, and the roller of the second section 8 of the chain to be jointed is clamped into a movable claw V-shaped groove 13; then, the first butterfly nut 2 and the second butterfly nut 6 are rotated to enable the first butterfly nut 2 and the second butterfly nut 6 to be close to each other, the sliding rail 7 slides in the through hole 12 along with the approach of the two butterfly nuts, so that the first section 1 of the chain to be connected and the second section 8 of the chain to be connected are also close to each other until the two sections can be in a butt joint state, and then the butt joint of the chain can be completed.

Preferably, the front jaw 3 and the moving jaw 5 are made by machining, so as to guarantee good bending resistance and long service life.

Preferably, the sliding track 7 is machined with a high roughness level.

Preferably, the sliding rail 7 and the through hole 12 used in cooperation with the sliding rail 7 are chamfered.

The utility model discloses a chain straining device uses lightly, and is swift convenient, can the auto-lock need not the manual work and maintain with the taut back chain straining device of chain, makes things convenient for the chain butt joint operation, has reduced intensity of labour, has reduced the operation personnel, makes low price, convenient to carry, and is longe-lived, can used repeatedly, has indirectly increased work efficiency.

It is noted that, herein, relational terms such as "first," "second," and the like may be used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities. Also, the term "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Meanwhile, the term "connected" and the like as used herein should be broadly interpreted as referring to a fixed connection, a detachable connection, a direct connection, or an indirect connection through intermediate components. In addition, "front", "rear", "left", "right", "upper", "lower", "inner", "outer", and the like are referred to herein as being placed in the state shown in the drawings.

It should be further noted that the above embodiments are only used for illustrating the technical solution of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the scope of the present invention.

Claims

1. A chain tensioning device is characterized by comprising a front claw and a moving claw, wherein a front claw bolt hole and a moving claw bolt hole are respectively machined in the top end of the front claw and the top end of the moving claw, the front claw bolt hole and the moving claw bolt hole are positioned at the same horizontal height, the front claw and the moving claw are connected with each other through a screw rod inserted into the front claw bolt hole and the moving claw bolt hole, a front claw V-shaped groove is formed in the lower portion of the front claw, a moving claw V-shaped groove is formed in the lower portion of the moving claw, a sliding rail is arranged on one side of the front claw, a through hole matched with the sliding rail is formed in the moving claw, the sliding rail is inserted into the through hole and slides in the through hole, and a first butterfly nut is assembled at the end portion, exposed out of the front claw bolt hole, of the screw rod, and a second butterfly nut is assembled at the end part of the screw rod exposed out of the movable claw bolt hole.

2. The chain tensioner as set forth in claim 1, wherein said front pawl and said moving pawl are machined.

3. The chain tensioner as set forth in claim 1, wherein said sliding track is machined with a high roughness grade.

4. A chain tensioner according to any one of claims 1 to 3, wherein the sliding track and the through hole with which the sliding track cooperates are chamfered.