CN218777072U

CN218777072U - Automatic chain resetting device of three-jaw tractor

Info

Publication number: CN218777072U
Application number: CN202223138803.2U
Authority: CN
Inventors: 张浩世; 姜颂; 于春娥
Original assignee: Qingdao Zhongze Plastic Machinery Co ltd
Current assignee: Qingdao Zhongze Plastic Machinery Co ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-03-31
Anticipated expiration: 2032-11-25

Abstract

The utility model discloses a three-jaw tractor chain automatic re-setting device, which comprises a frame, drive sprocket unit mount is in the frame, drive sprocket unit comprises axis of rotation, sprocket and driving motor, drive sprocket unit mount is in the frame drive sprocket unit comprises axis of rotation and sprocket, drive sprocket unit and drive sprocket unit are connected to the chain, tensioning sprocket installs in the frame, the connecting seat is installed on the chain, spacing unit mount is on the connecting seat, the utility model relates to a three-jaw tractor chain automatic re-setting device, arc spacing and tubular product contact, the spacing removal of tubular product promotion arc, the spacing drive piston rod of arc removes, and the piston rod drives the piston and removes, and the piston removes the extrusion second spring to make the second spring compressed, produce the bounce, produce the reaction force to the piston, realize carrying out the centre gripping to tubular product through the spacing realization of arc to the traction's of tubular product centre gripping effect.

Description

Automatic chain resetting device of three-jaw tractor

Technical Field

The utility model relates to a tractor technical field specifically is a three-jaw tractor chain automatic re-setting device.

Background

The extruder extrudes molten plastic through an extrusion port with a fixed shape under the action of a screw, and cuts the plastic after water cooling and shaping under the action of a tractor, and the extruder is mainly used for the mass continuous production of various products with the same cross section, such as pipe profiles and the like, while the crawler belt is a flexible chain ring which is driven by a driving wheel and surrounds the driving wheel, a loading wheel, an inducer and a riding wheel. The track pin connects the track shoes together to form a track link. The two ends of the crawler plate are provided with holes which are meshed with the driving wheel, and the middle part of the crawler plate is provided with induction teeth for aligning the crawler so as to improve the firmness of the crawler plate and the adhesive force between the crawler and the ground.

But in the use, track life is low, and long-time friction causes the track fracture easily, adopts the chain traction simultaneously, does not possess automatic re-setting's effect, and application scope is little.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems and providing a three-jaw tractor chain automatic resetting device.

In order to achieve the above object, the utility model provides a following technical scheme: the method is characterized in that: comprises a frame;

the driving chain wheel assembly is arranged on the rack and consists of a rotating shaft, a chain wheel and a driving motor;

the transmission chain wheel assembly is arranged on the rack and consists of a rotating shaft and a chain wheel;

a chain connecting the drive sprocket assembly and the drive sprocket assembly;

the tensioning chain wheel is arranged on the rack and is used for tensioning the chain;

the connecting seat is arranged on the chain;

the limiting assembly is installed on the connecting seat and consists of a supporting box body, a piston rod, an arc-shaped limiting frame and a second spring.

The technical scheme is that in the using process: the chain drives the connecting seat to move, the connecting seat drives the supporting box body to move, the supporting box body drives the arc limiting frames to move, the pipe is clamped through the upper arc limiting frame and the lower arc limiting frame, the arc limiting frames are in contact with the pipe, the pipe pushes the arc limiting frames to move, the arc limiting frames drive the piston rod to move, the piston rod drives the piston to move, the piston moves to extrude the second spring, the second spring is compressed to generate resilience force, reaction force is generated on the piston, the pipe is clamped through the arc limiting frames, the pipe is clamped and pulled, the effect of clamping and pulling the pipe is achieved, when the arc limiting frames are separated from the pipe, the arc limiting frames reset under the reaction force of the second spring, the automatic resetting effect is achieved, repeated recycling is achieved, the working efficiency is improved, when the pipe is used, the first contact on the piston is in contact with the second contact, signals are transmitted to the controller, the controller receives signals, the positive and negative rotation servo motor is controlled to work, the screw rod is driven to rotate, the two nuts move in opposite directions, the distance between the two chain wheels is increased, the height is improved, the chain is suitable for being used for pipes with different diameters, the use range is enlarged, the protection function is also, the integral damage of the arc limiting frames is prevented, and the integral damage of the pipe is caused by the integral limit frames;

preferably, the fixed slip recess that is provided with on the inner wall of frame left side, sliding connection has two sliding blocks that the specification is the same on the slip recess, be provided with the support frame on the sliding block, the fixed backup pad that is provided with two mutual symmetries on the inner wall of frame right side, movable sleeve is equipped with first axis of rotation in the backup pad, the fixed coaxial screw rod that is provided with between the first axis of rotation, be provided with in the backup pad and be used for driving the screw rod and carry out pivoted positive and negative servo motor, be provided with the controller of control positive and negative servo motor in the frame, threaded connection has two nuts that the specification is the same on the screw rod, the nut is fixed on a supporting bench, the fixed support frame that is provided with on a supporting bench.

Preferably, two driving chain wheel assemblies with the same specification are movably sleeved between the two support frames, and two driving chain wheel assemblies corresponding to the driving chain wheel assemblies are movably sleeved between the two support frames.

Preferably, a plurality of groups of supporting tubes are arranged on the rack, the supporting tubes are located between the chains, a partition plate is fixedly arranged on the middle inner wall of each supporting tube, the upper end and the lower end of each supporting tube are inserted into the corresponding supporting rod in a sliding mode, the supporting rods are connected with the partition plates of the supporting tubes through first springs, and a tensioning chain wheel is movably sleeved at the other end of each supporting rod.

Preferably, a supporting box body is fixedly arranged on the connecting seat, a piston is connected to the inner wall of the supporting box body in a sliding mode, a piston rod is arranged at the lower end of the piston, the lower end of the piston rod penetrates through the supporting box body in a sliding mode, an arc-shaped limiting frame is fixedly arranged at the lower end of the piston rod, a second spring is fixedly arranged at the top end of the inner wall of the supporting box body, and the lower end of the second spring is fixedly connected to the upper end face of the piston.

Preferably, a first contact is fixedly arranged on the upper end face of the piston, a telescopic assembly is fixedly arranged at the top end of the inner wall of the supporting box, the telescopic assembly comprises a telescopic pipe, a telescopic rod and a third spring, a second contact corresponding to the first contact is arranged on the telescopic rod assembly, and the first contact and the second contact are both connected with the controller.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a three-jaw tractor chain automatic re-setting device, spacing and the tubular product contact of arc, tubular product promotes the spacing removal of arc, the spacing drive piston rod of arc removes, the piston rod drives the piston and removes, the piston removes extrudees the second spring, thereby make the second spring compressed, produce the bounce, produce reaction force to the piston, realize carrying out the centre gripping to tubular product through the spacing realization of arc, realize the effect of pulling to the tubular product centre gripping, when spacing and tubular product of arc break away from, the spacing frame of arc resets under the reaction force of second spring, realize automatic re-setting's effect, play iterative recycling, promote work efficiency, when tubular product is thicker, make first contact and second contact on the piston, and give the controller with the signal transmission, controller received signal, control positive and negative servo motor work, it rotates to drive the screw rod, make two nuts move to opposite direction, thereby drive the increase of distance between two sprockets, make the chain promote the height, thereby be applicable to the tubular product use of different diameters, enlarge application range, simultaneously have protect function, prevent that the atress of arc is great, make use holistic damage, thereby the influence.

Drawings

Fig. 1 is a front view of the automatic resetting device of the three-jaw tractor chain of the present invention.

Fig. 2 is a top view of the automatic resetting device of the three-jaw tractor chain of the present invention.

Fig. 3 is a schematic structural view of the automatic resetting device of the three-jaw tractor chain of the present invention.

Fig. 4 is the schematic structural diagram of the tension sprocket of the automatic chain resetting device of the three-jaw tractor of the present invention.

Fig. 5 is a schematic structural view of the limiting component of the automatic chain resetting device of the three-jaw tractor of the present invention.

In the figure: 1-a rack, 2-a sliding groove, 3-a sliding block, 4-a supporting frame, 5-a supporting table, 6-a nut, 7-a supporting plate, 8-a screw rod, 9-a positive and negative rotation servo motor, 10-a driving chain wheel component, 11-a driving chain wheel component, 12-a chain, 13-a supporting tube, 14-a supporting rod, 15-a first spring, 16-a tensioning chain wheel, 17-a connecting seat, 18-a supporting box body, 19-a piston, 20-a piston rod, 21-an arc limiting frame, 22-a second spring, 23-a first contact, 24-a telescopic component and 25-a second contact.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

Referring to fig. 1-5, the present invention provides a technical solution: comprises a frame 1, a sliding groove 2 is fixedly arranged on the inner wall of the left side of the frame 1, two sliding blocks 3 with the same specification are connected on the sliding groove 2 in a sliding way, the sliding block 3 is provided with a supporting frame 4, the inner wall of the right side of the frame 1 is fixedly provided with two supporting plates 7 which are mutually symmetrical, a first rotating shaft is movably sleeved on the supporting plate 7, a coaxial screw 8 is fixedly arranged between the first rotating shafts, a positive and negative rotation servo motor 9 for driving the screw 8 to rotate is arranged on the supporting plate 7, a controller for controlling a positive and negative rotation servo motor 9 is arranged on the frame 1, two nuts 6 with the same specification are connected on the screw rod 8 in a threaded manner, the nut 6 is fixed on a support table 5, the support table 5 is fixedly provided with support frames 4, two drive sprocket wheel assemblies 10 with the same specification are movably sleeved between the two support frames 4, the driving chain wheel component 10 consists of a rotating shaft, a chain wheel and a driving motor, two driving chain wheel components 11 corresponding to the driving chain wheel components are movably sleeved between the two support frames 4, the driving chain wheel component 11 consists of a rotating shaft and a chain wheel, the driving chain wheel component 10 is connected with the driving chain wheel component 11 through a chain 12, a driving motor works to drive the chain wheel to rotate, the chain wheel drives the chain to rotate, the driving chain wheel component plays a role in supporting the chain to rotate, a positive and negative rotation servo motor is started, the positive and negative rotation servo motor works to drive a screw rod to rotate, the screw rod drives a nut to move left and right, the nut drives the support frame 4 to move left and right, so that the effect of adjusting the distance between the driving chain wheel assembly and the transmission chain wheel assembly is realized, and the height of a chain between chain wheels is adjusted;

a plurality of groups of supporting tubes 13 are arranged on the rack 1, the supporting tubes 13 are positioned between the chains 12, a partition plate is fixedly arranged on the inner wall of the middle of each supporting tube 13, supporting rods 14 are inserted into the upper ends and the lower ends of the supporting tubes 13 in a sliding manner, the supporting rods 14 are connected with the partition plates of the supporting tubes 13 through first springs 15, tensioning chain wheels 16 are movably sleeved at the other ends of the supporting rods 14, the supporting and limiting effects on the chains 12 are realized through the tensioning chain wheels, and meanwhile, the supporting rods slide along the supporting tubes, so that the tensioning chain wheels 16 have the automatic up-and-down moving function and the shock absorption function;

the chain 12 is provided with a plurality of connecting seats 17 with the same specification, the connecting seats 17 are fixedly provided with a supporting box 18, the inner wall of the supporting box 18 is connected with a piston 19 in a sliding manner, the lower end of the piston 19 is provided with a piston rod 20, the lower end of the piston rod 20 penetrates out of the supporting box 18 in a sliding manner, the lower end of the piston rod 20 is fixedly provided with an arc-shaped limiting frame 21, the top end of the inner wall of the supporting box 18 is fixedly provided with a second spring 22, the lower end of the second spring 22 is fixedly connected with the upper end surface of the piston 19, the upper end surface of the piston 19 is fixedly provided with a first contact 23, the top end of the inner wall of the supporting box 18 is fixedly provided with a telescopic assembly 24, the telescopic assembly 24 consists of a telescopic pipe, a telescopic rod and a third spring, the telescopic rod assembly 24 is provided with a second contact 25 corresponding to the first contact 23, and the first contact 23 and the second contact 25 are both connected with a controller, when the automatic pipe clamping device is used, the chain drives the connecting seat to move, the connecting seat drives the supporting box body 18 to move, the supporting box body drives the arc limiting frames 21 to move, the pipe is clamped through the upper and lower arc limiting frames 21, the arc limiting frames are in contact with the pipe, the pipe pushes the arc limiting frames to move, the arc limiting frames drive the piston rod to move, the piston rod drives the piston to move, the piston moves to extrude the second spring, so that the second spring is compressed to generate a counterforce to generate a reaction force on the piston, the pipe is clamped through the arc limiting frames, the pipe is clamped and pulled, when the arc limiting frames are separated from the pipe, the arc limiting frames reset under the reaction force of the second spring, the automatic resetting effect is realized, the repeated recycling is realized, the working efficiency is improved, when the pipe is thick, make first contact and the contact of second contact on the piston to give the controller with signal transmission, controller received signal, the servo motor work of control just reversing, drive the screw rod and rotate, make two nuts remove to opposite direction, thereby drive the increase of distance between two sprockets, make the chain promote the height, thereby the tubular product that is applicable to different diameters uses, enlarge application range, protect function has simultaneously, it is great to prevent that the spacing atress of arc from, cause holistic damage, thereby influence the use.

The utility model discloses a theory of operation does: the chain drives the connecting seat to move, the connecting seat drives the supporting box body 18 to move, the supporting box body drives the arc limiting frames 21 to move, clamping of a pipe is achieved through the upper arc limiting frames 21 and the lower arc limiting frames 21, the arc limiting frames are in contact with the pipe, the pipe pushes the arc limiting frames to move, the piston rods drive the pistons to move, the pistons move to extrude the second springs, the second springs are compressed, reaction force is generated on the pistons, clamping of the pipe is achieved through the arc limiting frames, traction effect on pipe clamping is achieved, when the arc limiting frames are separated from the pipe, the arc limiting frames reset under the reaction force of the second springs, automatic reset effect is achieved, repeated recycling is achieved, work efficiency is improved, when the pipe is thick, a first contact on the pistons is in contact with a second contact, signals are transmitted to a controller, the controller receives signals, the controller controls a forward and reverse rotation servo motor to work, the screw is driven to rotate, two nuts move in opposite directions, distance between two sprockets is increased, the chain is enabled, the height is enabled to be suitable for use of pipes, the use range is enlarged, meanwhile, the function of the pipe is achieved, and damage of the integral limiting frames is prevented, and damage of the whole limiting frames is caused.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An automatic resetting device for a three-jaw tractor chain is characterized by comprising a frame (1);

the driving chain wheel assembly (10) is mounted on the rack (1), and the driving chain wheel assembly (10) consists of a rotating shaft, a chain wheel and a driving motor;

the transmission chain wheel assembly (11), the transmission chain wheel assembly (11) is installed on the rack (1), and the transmission chain wheel assembly (11) consists of a rotating shaft and a chain wheel;

a chain (12), the chain (12) connecting the drive sprocket assembly (10) and the drive sprocket assembly (11);

a tension sprocket (16), the tension sprocket (16) being mounted on the frame (1) for tensioning the action of the chain (12);

the connecting seat (17), the said connecting seat (17) is installed on chain (12);

the limiting assembly is installed on the connecting seat (17) and consists of a supporting box body (18), a piston (19), a piston rod (20), an arc-shaped limiting frame (21) and a second spring (22).

2. The automatic resetting device of a three-jaw tractor chain of claim 1, wherein: the utility model discloses a motor, including frame (1), frame (1) left side inner wall, fixed sliding groove (2) that is provided with on the inner wall of sliding groove (2), sliding groove (2) go up sliding connection has two sliding blocks (3) that the specification is the same, be provided with support frame (4) on sliding block (3), fixed backup pad (7) that are provided with two mutual symmetries on frame (1) right side inner wall, the movable sleeve is equipped with first axis of rotation on backup pad (7), fixed coaxial screw rod (8) of being provided with between the first axis of rotation, be provided with in backup pad (7) and be used for driving screw rod (8) and carry out pivoted just reverse servo motor (9), be provided with the controller of control just reverse servo motor (9) on frame (1), threaded connection has two nuts (6) that the specification is the same on screw rod (8), nut (6) are fixed on brace table (5), fixed support frame (4) of being provided with on brace table (5).

3. The automatic resetting device of a three-jaw tractor chain of claim 2, wherein: two drive sprocket components (10) with the same specification are movably sleeved between the support frames (4), and two drive sprocket components (11) corresponding to the drive sprocket components are movably sleeved between the support frames (4).

4. The automatic resetting device of a three-jaw tractor chain of claim 3, wherein: the chain type supporting frame is characterized in that a plurality of groups of supporting tubes (13) are arranged on the frame (1), the supporting tubes (13) are located between the chains (12), partition plates are fixedly arranged on the inner wall in the middle of the supporting tubes (13), supporting rods (14) are inserted into the upper end and the lower end of the supporting tubes (13) in a sliding mode, the supporting rods (14) are connected with the partition plates of the supporting tubes (13) through first springs (15), and tensioning chain wheels (16) are movably sleeved at the other ends of the supporting rods (14).

5. The automatic resetting device of a three-jaw tractor chain of claim 1, wherein: the fixed supporting box body (18) that is provided with on connecting seat (17), sliding connection has piston (19) on supporting box body (18) inner wall, piston (19) lower extreme is provided with piston rod (20), piston rod (20) lower extreme slides and wears out supporting box body (18), piston rod (20) lower extreme is fixed and is provided with arc spacing (21), supporting box body (18) inner wall top is fixed and is provided with second spring (22), second spring (22) lower extreme fixed connection is at piston (19) up end.

6. The automatic resetting device of a three-jaw tractor chain of claim 5, wherein: the upper end face of the piston (19) is fixedly provided with a first contact (23), the top end of the inner wall of the supporting box body (18) is fixedly provided with a telescopic assembly (24), the telescopic assembly (24) comprises a telescopic pipe, a telescopic rod and a third spring, a second contact (25) corresponding to the first contact (23) is arranged on the telescopic assembly (24), and the first contact (23) and the second contact (25) are both connected with a controller.