CN216027885U

CN216027885U - Chain tensioning device

Info

Publication number: CN216027885U
Application number: CN202121977421.1U
Authority: CN
Inventors: 籍增显; 姜凤凯
Original assignee: Shandong Iron and Steel Group Yongfeng Lingang Co Ltd
Current assignee: Shandong Iron and Steel Group Yongfeng Lingang Co Ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-03-15
Anticipated expiration: 2031-08-23

Abstract

The utility model discloses a chain tensioning device which comprises a base, wherein a first supporting plate is fixedly connected to the right side of the top end of the base, a first bearing is fixedly connected to the middle upper portion of the first supporting plate, a lead screw is arranged in the middle of the first bearing, a nut is in threaded connection with the left side of the middle of the lead screw, an extension rod is fixedly connected to the bottom end of the nut, a second bearing is arranged on the outer side of the left portion of the lead screw, the second bearing is fixedly connected to the middle upper portion of the second supporting plate, and threaded holes are formed in four corners of the base. According to the chain tensioning device, the chain is tensioned through the first hook and the second hook, the purpose of saving labor is achieved, the operation is convenient, the base is fixed on the workbench or other suitable positions through the bolts, the lead screw rotates stably under the support of the first supporting plate and the second supporting plate, the purpose of stable operation of the chain tensioning device is achieved, the butt joint quality and speed of the chain are effectively improved, the working efficiency is improved, and the chain tensioning device is worthy of being widely popularized.

Description

Chain tensioning device

Technical Field

The utility model relates to the technical field of chain transmission, in particular to a chain tensioning device.

Background

The chain is generally a metal chain ring or a metal ring, is mainly used for mechanical transmission and traction, and is a chain for mechanical transmission, the chain comprises four series of chains, namely a transmission chain, a conveying chain, a dragging chain and a special professional chain, different chains are used in different fields, the transmission chain is mainly used for transmitting power, the conveying chain is mainly used for conveying a chain of materials, the dragging chain is mainly used for dragging and hoisting the chain, the special professional chain is mainly used for a chain with special functions and structures on a special mechanical device, when a chain interface is butted, two persons respectively grab one chain and force towards the middle to tighten the chain, then a third person is needed to install the chain slipknots, firstly, the standing positions of the persons are dense, the operation is inconvenient, secondly, the person tightens the chain by labor, the chain cannot be fixed, and the third person is inconvenient to install the slipknots, the operation is complex and time-consuming and labor-consuming.

Chinese patent document CN213870970U discloses a chain tensioning device, which comprises a front claw and a moving claw, wherein a front claw bolt hole and a moving claw bolt hole are respectively processed at 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 located at the same horizontal height, the front claw and the moving claw are connected with each other through a screw inserted into the front claw bolt hole and the moving claw bolt hole, a front claw V-shaped groove is arranged at the lower part of the front claw, a moving claw V-shaped groove is arranged at the lower part of the moving 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 moving claw, the sliding track is inserted into the through hole and slides in the through hole, a first butterfly nut is assembled at the end part of the screw exposed out of the front claw bolt hole, and a second butterfly nut is assembled at the end part of the screw exposed out of the moving claw bolt hole. This patent 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, but its operation needs great strength just can twist butterfly nut, and the operation is hard, and does not have fixing device, produces unstable phenomenon easily during the use.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to solve the drawbacks of the prior art and to provide a chain tensioner.

In order to achieve the purpose, the utility model adopts the following technical scheme: chain straining device, the on-line screen storage device comprises a base, the first backup pad of base top right side fixedly connected with, the first bearing of upper portion fixedly connected with in the first backup pad, first bearing middle part is provided with the lead screw, lead screw middle part left side threaded connection has the nut, nut bottom fixedly connected with extension rod, the lead screw left part outside is provided with the second bearing, upper portion in the second backup pad is connected to second bearing fixed connection, the base four corners all is provided with the screw hole.

As a further description of the above technical solution:

the right end of the lead screw is fixedly connected with a turntable.

As a further description of the above technical solution:

the right part of the screw rod is fixedly connected with a first baffle at the right end of the first supporting plate.

As a further description of the above technical solution:

and the right part of the screw rod is fixedly connected with a second baffle at the left end of the first supporting plate.

As a further description of the above technical solution:

and the bottom end of the second supporting plate is fixedly connected to the left side of the top end of the base.

As a further description of the above technical solution:

and bolts are connected with the inner parts of the threaded holes in a threaded manner.

As a further description of the above technical solution:

the middle lower part of the left end of the first supporting plate is fixedly connected with a first hook.

As a further description of the above technical solution:

and the bottom end of the extension rod is fixedly connected with a second hook.

The utility model has the following beneficial effects:

1. according to the chain butt joint device, the first hook and the second hook are respectively hung at two ends of the chain, the rear end rotary table is rotated clockwise, the first hook and the second hook are close to each other, the purpose of tensioning the chain is achieved, the chain is convenient to install by installing the chain slipknot when the chain is pulled to a proper position, after the chain is installed, the rotary table is rotated anticlockwise, the first hook and the second hook are far away, the purpose of conveniently taking out the chain is achieved, the chain butt joint device is labor-saving and convenient to operate, a tool is used for replacing manpower, personnel are saved, the chain butt joint interface can be completed by only one person, and the chain butt joint device is labor-saving to operate.

2. According to the utility model, by arranging the base, when the chain slipknots need to be installed, the base is fixed on the workbench or other suitable positions through the bolts, and the lead screw rotates stably under the support of the first support plate and the second support plate, so that the purpose of stable operation of the device is achieved, the butt joint quality and speed of the chains are effectively improved, the working efficiency is improved, and the device is worth of being widely popularized.

Drawings

Fig. 1 is a perspective view of a chain tensioner according to the present invention;

fig. 2 is a front view of the chain tensioner proposed by the present invention;

fig. 3 is a top view of the chain tensioner of the present invention.

Illustration of the drawings:

1. a first bearing; 2. a first hook; 3. a second hook; 4. an extension pole; 5. a base; 6. a bolt; 7. a second support plate; 8. a second bearing; 9. a nut; 10. a lead screw; 11. a second baffle; 12. a first support plate; 13. a turntable; 14. a first baffle plate; 15. a threaded bore.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within 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", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, one embodiment of the present invention is provided: chain tensioning device, including the base 5, through being provided with the base 5, reach the purpose of supporting whole device, make the device operation stable, the base 5 top right side fixedly connected with first backup pad 12, upper portion fixedly connected with first bearing 1 in the first backup pad 12, first bearing 1 middle part is provided with lead screw 10, lead screw 10 middle part left side threaded connection has nut 9, lead screw 10 rotates, make nut 9 move along lead screw 10, according to the difference of lead screw 10 direction of rotation, the direction that nut 9 moves is different, reach the purpose of tensioning or loosening the chain, and nut 9 is under the pulling of chain, can not produce the rotation, only can move about, nut 9 bottom fixedly connected with extension rod 4, through being provided with extension rod 4, reach the distance between extension second couple 3 and nut 9, make first couple 2 and second couple 3 keep at same horizontal position, improve the quality when chain both ends butt joint, make things convenient for the installation of zip fastener knot, effectively improve work efficiency, the 10 left part outside of lead screw is provided with second bearing 8, upper portion in second backup pad 7 is fixed connection to second bearing 8, through being provided with primary shaft bearing 1 and second bearing 8, it is more nimble to make lead screw 10 rotate, reach the purpose of using manpower sparingly, even operate alone, also can install fast, 5 four corners of base all are provided with screw hole 15, can construction bolt 6 through screw hole 15, thereby reach unable adjustment base 5's purpose, improve the stability of device.

The right end of the lead screw 10 is fixedly connected with a rotary table 13, the rear end rotary table 13 is rotated clockwise to enable the first hook 2 and the second hook 3 to be close to each other, the purpose of tensioning a chain is achieved, the chain slipknot is installed when the lead screw is pulled to a proper position, the installation is convenient, after the installation is finished, the rotary table 13 is rotated anticlockwise to enable the first hook 2 and the second hook 3 to be far away, the purpose of conveniently taking out the chain is achieved, the device is labor-saving and convenient to operate, the manual work is replaced by a tool, the personnel is saved, only one person is needed to complete the chain butt joint interface, the right part of the lead screw 10 is fixedly connected with a first baffle 14 at the right end of a first supporting plate 12, the right part of the lead screw 10 is fixedly connected with a second baffle 11 at the left end of the first supporting plate 12, the purpose of limiting the lead screw 10 is achieved by arranging the first baffle 14 and the second baffle 11, the left-right deviation of the lead screw 10 is effectively prevented, and the rotating stability of the lead screw 10 is improved, 7 bottom fixed connection of second backup pad is in 5 top left sides of base, the inside equal threaded connection of screw hole 15 has bolt 6, fix base 5 on the workstation through bolt 6, perhaps other suitable position, under the support of first backup pad 12 with second backup pad 7, lead screw 10 rotates steadily, reach the purpose that the device operation is stable, effectively improve the butt joint quality and the speed of chain, the work efficiency is improved, the first couple of lower part fixedly connected with 2 in the 12 left ends of first backup pad, 4 bottom fixed connection of extension rod have the second couple 3, hang first couple 2 and second couple 3 at the both ends of chain respectively, reach the purpose of convenient taut chain.

The working principle is as follows: when the chain tensioning device is used, the first hook 2 and the second hook 3 are respectively hung at two ends of a chain, the rear end rotary table 13 is rotated clockwise, the first hook 2 and the second hook 3 are close to each other, the purpose of tensioning the chain is achieved, the chain slipknot is installed when the chain is pulled to a proper position, the chain is convenient to install, after the chain is installed, the rotary table 13 is rotated anticlockwise, the first hook 2 and the second hook 3 are far away from each other, the purpose of conveniently taking out the chain is achieved, the device saves labor and is convenient to operate, the manual work is replaced by a tool, the chain butt joint interface can be completed by only one person, the base 5 is arranged, when the chain slipknot is needed to be installed, the base 5 is fixed on a workbench through the bolt 6 or at other proper positions, under the support of the first support plate 12 and the second support plate 7, the lead screw 10 rotates stably, and the purpose of stable operation of the device is achieved, the butt joint quality and speed of the chain are effectively improved, the working efficiency is improved, and the butt joint device is worthy of being widely popularized.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. Chain straining device, including base (5), its characterized in that: base (5) top right side fixedly connected with first backup pad (12), upper portion fixedly connected with first bearing (1) in first backup pad (12), first bearing (1) middle part is provided with lead screw (10), lead screw (10) middle part left side threaded connection has nut (9), nut (9) bottom fixedly connected with extension rod (4), the lead screw (10) left part outside is provided with second bearing (8), upper portion in second backup pad (7) is connected to second bearing (8) fixed connection, base (5) four corners all is provided with screw hole (15).

2. The chain tensioner as set forth in claim 1, wherein: the right end of the lead screw (10) is fixedly connected with a rotary table (13).

3. The chain tensioner as set forth in claim 1, wherein: the right part of the screw rod (10) is fixedly connected with a first baffle (14) at the right end of the first supporting plate (12).

4. The chain tensioner as set forth in claim 1, wherein: and a second baffle (11) is fixedly connected to the right part of the screw rod (10) at the left end of the first supporting plate (12).

5. The chain tensioner as set forth in claim 1, wherein: the bottom end of the second supporting plate (7) is fixedly connected to the left side of the top end of the base (5).

6. The chain tensioner as set forth in claim 1, wherein: and bolts (6) are connected with the inner parts of the threaded holes (15) in a threaded manner.

7. The chain tensioner as set forth in claim 1, wherein: the middle lower part of the left end of the first supporting plate (12) is fixedly connected with a first hook (2).

8. The chain tensioner as set forth in claim 1, wherein: the bottom end of the extension rod (4) is fixedly connected with a second hook (3).