CN210949718U

CN210949718U - Automatic spring tensioning mechanism for chain

Info

Publication number: CN210949718U
Application number: CN201922009704.6U
Authority: CN
Inventors: 雷万钧
Original assignee: Fuzhou Kaihe Zhongwang Mechatronics Co ltd
Current assignee: Fuzhou Kaihe Zhongwang Mechatronics Co ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-07-07
Anticipated expiration: 2029-11-20

Abstract

The utility model discloses an automatic spring straining device of chain, which comprises a supporting rack, be fixed with preceding fixed post and the after-fixing stand that the interval set up on the support frame, the vertical fixation has two horizontal optical axes that are parallel to each other between preceding fixed post and the after-fixing stand, sliding connection has sprocket seat post and tensioning post on two horizontal optical axes, the sprocket rotation of being connected with the chain meshing is connected on sprocket seat post, it establishes the compression spring on horizontal optical axis to be connected with the cover between sprocket seat post and the tensioning post, the last tensioning screw that fixed perpendicular to after-fixing stand set up of after-fixing stand, after-fixing stand is passed through to tensioning screw's one end, and threaded connection has the propulsion nut on the tensioning screw, the propulsion nut is near on the rear end face of after-fixing stand. The utility model discloses mechanism reasonable in design, simple structure, easy dismouting, the chain can realize automatic tensioning at the operation in-process, has alleviateed the degree of difficulty that needs to dismantle on-the-spot maintenance operations such as sprocket chain greatly, provides effective guarantee for normal production operation simultaneously.

Description

Automatic spring tensioning mechanism for chain

Technical Field

The utility model relates to a chain drive field especially relates to automatic spring straining device of chain.

Background

In the prior art, chain wheels of the dish conveying machine are all fixed structures which cannot be adjusted, and a chain needs to be disassembled, increased and decreased or half-buckled chains are additionally arranged after the chain is naturally extended in the operation process so as to achieve the purpose of tensioning the chain. But the adjustment is not satisfactory due to the fact that the adjustment is not adjustable, and the operation is not smooth; meanwhile, the chain is extremely complicated to disassemble and assemble, time is consumed by error work, and normal production and operation orders are greatly discounted.

Disclosure of Invention

An object of the utility model is to provide an automatic spring straining device of chain that can be at the automatic tensioning chain of operation in-process.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

automatic spring straining device of chain, including the support frame, be fixed with preceding fixed post and the after-fixing stand that the interval set up on the support frame, the vertical fixation has two horizontal optical axes that are parallel to each other between preceding fixed post and the after-fixing stand, and sliding connection has sprocket seat post and tensioning post on two horizontal optical axes, and the sprocket that is connected with the chain meshing rotates to be connected on sprocket seat post, is connected with the cover between sprocket seat post and the tensioning post and establishes the compression spring on horizontal optical axis, the tensioning screw rod that fixed perpendicular to after-fixing stand set up on the after-fixing stand, the after-fixing stand is passed to the one end of tensioning screw rod, and threaded connection has the propulsion nut on the tensioning screw rod, and the propulsion nut is near on the rear end face of after-fixing.

And a polished rod perpendicular to the front fixed upright is arranged on the front fixed upright and is respectively sleeved and connected with the front fixed upright and the chain wheel seat post in a sliding manner.

And the polished rod is connected with the front fixed upright post and the chain wheel seat post in a sliding manner through self-lubricating copper sleeves.

The chain wheel seat column and the tensioning column are connected with the two transverse optical shafts through linear bearings.

And the tensioning screw rod is in threaded connection with a locking nut which is used for fixing the tensioning screw rod on the rear fixing upright post.

Be equipped with travel switch and siren on the support frame, when touching travel switch when the chain becomes loose, the siren sends the prompt tone, reminds the customer to tighten up the chain.

The utility model adopts the above technique, following beneficial effect has: the chain is under a compressed state through the compression spring, when the chain is worn and lengthened, the pressure of the spring pushes the chain wheel to move, the chain is continuously tensioned, and the chain is continuously kept in a proper tensioned state within a certain range. The utility model discloses mechanism reasonable in design, simple structure, easy dismouting, the chain can realize automatic tensioning at the operation in-process, has alleviateed the degree of difficulty that needs to dismantle on-the-spot maintenance operations such as sprocket chain greatly, provides effective guarantee for normal production operation simultaneously.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments;

fig. 1 is a schematic view of the present invention.

Detailed Description

As shown in fig. 1, the utility model discloses automatic spring straining device of chain, including support frame 1, be fixed with preceding fixed post 2 and the back fixed post 3 that the interval set up on the support frame 1, the vertical fixation has two horizontal optical axes 4 that are parallel to each other between preceding fixed post 2 and the back fixed post 3, sliding connection has sprocket seat post 5 and tensioning post 6 on two horizontal optical axes 4, the sprocket rotation of being connected with the chain meshing is connected on sprocket seat post 5, be connected with between sprocket seat post 5 and the tensioning post 6 and establish the compression spring 7 on horizontal optical axis 4 by the cover, the last fixed tensioning screw 8 that is perpendicular to back fixed post 3 set up of back fixed post 3, back fixed post 3 is passed to tensioning screw 8's one end, and threaded connection has propulsion nut 9 on the tensioning screw 8, and propulsion nut 9 is near on the rear end face of back fixed post 3.

The front fixed upright post 2 is provided with a polish rod 10 vertical to the front fixed upright post 2, and the polish rod 10 is respectively connected with the front fixed upright post 2 and the chain wheel seat post 5 in a sliding sleeved mode. The polish rod 10 is connected with the front fixed upright post 2 and the chain wheel seat post 5 in a sliding way through a self-lubricating copper sleeve 11. The front fixed upright post 2 and the chain wheel seat post 5 are crossed by a polished rod 10 to limit the torsion of the chain wheel seat post 5 caused by the action of chain force, and the polished rod 10 keeps the sliding state of the chain wheel seat post 5 on the polished rod 10 through a self-lubricating copper sleeve 11 (or other parts which are convenient for the polished rod 10 to slide) arranged on the front fixed upright post and the chain wheel seat post 5. In addition, the polish rod 10 may or may not be fixed, but may not move to the left, as desired.

The chain wheel seat post 5 and the tensioning post 6 are connected with the two transverse optical shafts 4 through the linear bearings 12, so that the height can be increased.

And the tensioning screw rod 8 is in threaded connection with a locking nut 13 for fixing the tensioning screw rod on the rear fixing upright post 3.

In addition, be equipped with travel switch and siren on support frame 1, when touching travel switch when the chain becomes loose, the siren sends the prompt tone, reminds the customer to tighten up the chain.

The utility model discloses a theory of operation: when the chain tensioning device is installed, the pushing nut 9 on the tensioning screw 8 is rotated, the tensioning column 6 is pushed forwards, the chain wheel seat column 5 is pushed to slide forwards through the compression spring 7, and the upper chain and the lower chain are synchronously tensioned. When the chain is worn and lengthened, the pressure of the spring pushes the chain wheel to move, the chain is continuously tensioned, and the chain is continuously kept in a proper tensioning state within a certain range. When the chain becomes longer and the tension of the spring cannot meet the tension requirement, the tension of the chain can be set to be in an appropriate range again by increasing the tension of the spring.

The travel of the tensioning screw 8 is limited when tightening the compression springs 7, and cannot be adjusted again when the tensioning screw 8 and the polished rod 10 are in contact with each other, and the optimal state of the compression springs 7 in the device is adjusted to the limit, and the limit position can also be realized by sleeving the two compression springs 7 with appropriate pipes. Therefore, the device can be adjusted conveniently only when the device is adjusted to be fixed, and particularly, the device is more convenient to use as the device is provided with a plurality of groups of compression springs and needs to be adjusted to be consistent. After the equipment runs for a period of time, the compression spring 7 is loosened, and when the equipment is tightened again, the equipment can be adjusted only by adjusting to be fixed, and even people who do not know the equipment at all can also adjust the equipment conveniently.

The utility model discloses mechanism reasonable in design, simple structure, easy dismouting, the chain can realize automatic tensioning at the operation in-process, has alleviateed the degree of difficulty that needs to dismantle on-the-spot maintenance operations such as sprocket chain greatly, provides effective guarantee for normal production operation simultaneously.

The practice of the present invention has been described with reference to the accompanying drawings, but the invention is not limited to the embodiments described above, which are illustrative rather than limiting, and it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. Automatic spring straining device of chain, including the support frame, its characterized in that: the supporting frame is fixed with a front fixing stand column and a rear fixing stand column which are arranged at intervals, two transverse optical axes which are parallel to each other are vertically fixed between the front fixing stand column and the rear fixing stand column, a chain wheel seat column and a tensioning column are connected to the two transverse optical axes in a sliding mode, a chain wheel connected with a chain in a meshed mode is connected to the chain wheel seat column in a rotating mode, a compression spring which is sleeved on the transverse optical axes is connected between the chain wheel seat column and the tensioning column, a tensioning screw rod which is perpendicular to the rear fixing stand column is fixed to the rear fixing stand column, one end of the tensioning screw rod penetrates through the rear fixing stand column, a pushing nut is connected to the tensioning screw rod in a threaded mode, and the.

2. The automatic chain spring tensioning mechanism of claim 1, wherein: and a polished rod perpendicular to the front fixed upright is arranged on the front fixed upright and is respectively sleeved and connected with the front fixed upright and the chain wheel seat post in a sliding manner.

3. The automatic chain spring tensioning mechanism of claim 2, wherein: and the polished rod is connected with the front fixed upright post and the chain wheel seat post in a sliding manner through self-lubricating copper sleeves.

4. The automatic chain spring tensioning mechanism of claim 1, wherein: the chain wheel seat column and the tensioning column are connected with the two transverse optical shafts through linear bearings.

5. The automatic chain spring tensioning mechanism of claim 1, wherein: and the tensioning screw rod is in threaded connection with a locking nut which is used for fixing the tensioning screw rod on the rear fixing upright post.

6. The automatic chain spring tensioning mechanism of claim 1, wherein: be equipped with travel switch and siren on the support frame, when touching travel switch when the chain becomes loose, the siren sends the prompt tone, reminds the customer to tighten up the chain.