CN217992413U - Tool for replacing torsion spring on looping car - Google Patents

Abstract

The utility model discloses a frock for changing torsion spring on looping car that looping car overhauld technical field, include: moving the base; the bottom end of the supporting upright post is connected with the movable base; the fixed mounting frame is fixedly connected with the top end of the support upright post; the lifting main arms are arranged in parallel up and down and are rotationally connected with the fixed mounting frame; the movable mounting frame is rotationally connected with the lifting main arm; one end of the telescopic cylinder is hinged with the supporting upright post, and the other end of the telescopic cylinder is rotationally connected with the lifting main arm and drives the movable mounting rack to lift; the rotating auxiliary arm is rotatably connected with the movable mounting frame and can rotate in a horizontal plane; and the bearing jig is rotationally connected with the rotary auxiliary arm and used for bearing the torsion spring. The utility model discloses a frock has reduced intensity of labour, has shortened construction period, has improved torsion spring's change efficiency to construction safety has been improved.

Description

Tool for replacing torsion spring on looping car

Technical Field

The utility model relates to a looping car overhauls technical field, concretely relates to frock is changed to torsion spring.

Background

The looping car is applied to a cold rolling production process and mainly used for storing or releasing strip steel so as to ensure that a rolling mill can continuously and stably carry out processing operation.

As shown in fig. 6, the looping car 300 is located under the ground and can reciprocate along the translation rail 400, and the torsion spring 200 is a main component of the looping car 300 for storing steel strips and is fixedly mounted on a cross beam of the looping car 300 through a connecting bolt. When the torsion spring is replaced, the single torsion spring is 400 kg-500 kg in weight, and the looping car is positioned below the ground, so that the torsion spring cannot be hoisted by using a crane, and the torsion spring can only be hoisted and transported by using the chain block.

However, in the actual production activity, because there is no fixed hoisting point in the looper and the torsion spring has no fixed supporting point, there is a problem of inclined hoisting caused by oblique pulling in the process of using the chain block to transport and install the torsion spring, and this results in high labor intensity for constructors, time and labor consuming construction, low efficiency, and it is easy to generate extrusion and collision damage because multiple constructors are required to enter the looper in the construction process.

Disclosure of Invention

In view of this, the utility model aims at providing a frock for changing torsion spring on looping car to solve the technical problem that the change inefficiency that current torsion spring change method exists.

The utility model discloses the technical scheme who adopts does: the utility model provides a frock for changing torsion spring on looping car, the frock includes:

moving the base;

the bottom end of the support upright post is connected with the movable base;

the mounting frame is fixedly connected with the supporting upright post;

the lifting main arms are at least two and are arranged in parallel up and down, and the lifting main arms are rotationally connected with the fixed mounting frame;

the movable mounting rack is rotatably connected with the lifting main arm;

one end of the telescopic cylinder is hinged with the supporting upright post, and the other end of the telescopic cylinder is rotatably connected with the lifting main arm so as to drive the movable mounting rack to lift through the expansion of the telescopic cylinder;

one end of the rotary auxiliary arm is rotatably connected with the movable mounting frame, and the rotary auxiliary arm can rotate in a horizontal plane;

and the bearing jig is rotationally connected with the other end of the rotary auxiliary arm and is used for bearing the torsion spring.

Preferably, the bearing jig comprises a horizontal bearing plate, radial supporting plates, a longitudinal connecting plate and lug plates, wherein the radial supporting plates are fixedly connected to two ends of the horizontal bearing plate in the length direction, and the longitudinal connecting plate is fixedly connected with one end of the horizontal bearing plate in the width direction; the two ear plates are fixedly connected to the longitudinal connecting plate and are connected with one end of the rotary auxiliary arm in a rotating mode, so that the bearing jig can rotate in the horizontal plane.

Preferably, a V-shaped supporting groove is formed in the top of the radial supporting plate, so that the radial supporting plate can radially limit the torsion spring.

Preferably, the movable base comprises a vehicle body, a driving wheel and a steering wheel, the driving wheel is arranged at the rear end of the vehicle body and used for driving the movable base to move, and the steering wheel is arranged at the front end of the vehicle body and used for controlling the moving direction of the movable base.

Preferably, a rotary bearing is installed at the top of the movable base, and the bottom end of the support upright is fixedly connected with the rotary bearing, so that the main lifting arm can rotate in a horizontal plane.

Preferably, the fixed mounting frame is a U-shaped frame with an upward opening, the U-shaped frame is fixedly connected with the top end of the supporting upright post, and the two main lifting arms are arranged in the U-shaped frame in parallel one above the other and are rotatably connected with the U-shaped frame through a rotating shaft.

Preferably, the movable mounting frame is a U-shaped frame with a downward opening, and the two main lifting arms are arranged in the U-shaped frame in parallel one above the other and are rotatably connected with the U-shaped frame through a rotating shaft; the top end of the movable mounting frame is rotatably connected with one end of the rotary auxiliary arm through a bearing.

Preferably, the telescopic cylinder comprises a hydraulic cylinder; and the middle part of the supporting upright post is fixedly connected with a mounting plate, the cylinder body end of the hydraulic cylinder is hinged with the mounting plate through a pin shaft, and the piston end is rotatably connected with the lifting main arm through a rotating shaft.

Preferably, the middle part of the lifting main arm above the lifting main arm is rotatably connected with the fixed mounting frame, and a balancing weight is arranged at one end, far away from the movable mounting frame, of the lifting main arm.

Preferably, a lifting lug is arranged in the middle of the lifting main arm above the lifting main arm.

The utility model has the advantages that:

the utility model discloses a mode of auxiliary stay. The bottom end of the supporting upright post is connected with a movable base, and the tool can move back and forth along the direction of the translation track by the movement of the movable base, so that the relative position of the tool and the looping car is changed; the top end of the supporting upright post is fixedly connected with a fixed mounting frame, the fixed mounting frame is rotationally connected with two lifting main arms which are arranged in parallel up and down, the end parts of the two lifting main arms are rotationally connected with a movable mounting frame, and a parallelogram mechanism is formed, so that the movable mounting frame is always kept in a vertical state; a telescopic cylinder is hinged between the lifting main arm and the supporting upright post, and the lifting main arm can be driven to rotate in a vertical plane through the extension and the shortening of the telescopic cylinder, so that the lifting of the movable mounting rack is realized; the top of moving the mounting bracket rotates through the bearing and is connected with rotatory fly jib, and the tip of rotatory fly jib is connected with the transmission of bearing the tool, because move the mounting bracket and remain vertical state throughout for rotatory fly jib can be in the rotation of horizontal plane, and then changes the size of frock, with the removal of convenient frock, and the regulation bears the distance of tool and looping car, and then removes torsion spring to mounted position.

The utility model discloses a frock has reduced intensity of labour, has shortened construction period, has improved torsion spring's change efficiency to construction safety has been improved.

Drawings

Fig. 1 is a structural schematic diagram of the expansion state of the tool for replacing the torsion spring on the looping car according to the present invention;

fig. 2 is a structural schematic diagram of a folded state of the tool for replacing the torsion spring on the looping car of the present invention;

FIG. 3 is a side view of the tool for replacing the torsion spring on the looping car of the present invention;

fig. 4 is a schematic perspective view of the carrying fixture;

FIG. 5 is a view showing a state of use of the tool for replacing the torsion spring of the looping car of the present invention;

fig. 6 is a schematic structural view of the looping car.

The reference numbers in the figures illustrate:

100. tooling;

110. moving the base;

111. a vehicle body; 112. a drive wheel; 113. a steering wheel; 114. a slew bearing;

120. supporting the upright post;

121. mounting a plate;

130. fixing a mounting frame;

140. lifting the main arm;

141. a rotating shaft; 142. lifting lugs;

150. a movable mounting rack;

160. a telescopic cylinder;

170. a rotating auxiliary arm;

180. carrying a jig;

181. a horizontal bearing plate; 182. a radial support plate; 183. a longitudinal connecting plate; 184. an ear plate; 185. a V-shaped supporting groove;

190. a balancing weight;

200. a torsion spring;

300. looping a vehicle;

400. and (6) translating the track.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the attached drawings. These embodiments are provided only for illustrating the present invention and are not intended to limit the present invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "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 the 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" and "second" 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 according to specific situations by those skilled in the art.

In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

In one embodiment, as shown in fig. 1 to 5, a tooling 100 for replacing a torsion spring of a looping car includes:

a moving base 110, the moving base 110 being capable of reciprocating along the extending direction of the translation rail 400.

A support column 120, and the bottom end of the support column 120 is connected with the movable base 110.

And a mounting frame 130, wherein the mounting frame 130 is fixedly connected with the top end of the support upright 120.

At least two main lifting arms 140, the main lifting arms 140 being arranged in parallel up and down; meanwhile, each of the lifting main arms 140 is rotatably coupled to the fixed mounting bracket 130, respectively, so that all the lifting main arms 140 can rotate in a vertical plane around the fixed mounting bracket 130.

And a movable mounting frame 150, wherein the movable mounting frame 150 is rotatably connected with one end of each lifting main arm 140, so that the fixed mounting frame 130, the lifting main arms 140 and the movable mounting frame 150 form a parallelogram transmission mechanism.

And a telescopic cylinder 160, one end of which 160 is hinged to the support column 120, and the other end of which is hinged to the main lifting arm 140, so that the movable mounting rack 150 is driven to lift by the expansion and contraction of the telescopic cylinder 160.

And a revolute pair arm 170, one end of the revolute pair arm 170 being rotatably connected to the movable mounting frame 150, and the revolute pair arm 170 being rotatable in a horizontal plane.

And the bearing jig 180 is rotatably connected with the other end of the rotary auxiliary arm 170 and is used for bearing or supporting the torsion spring 200.

This application adopts the mode of auxiliary stay. The bottom end of the support upright 120 is connected with a movable base 110, and the reciprocating movement of the tool 100 in the extension direction of the translation track 400 can be realized through the movement of the movable base 110, so that the relative positions of the tool 100 and the looping car 300 are changed, and the movement of the torsion spring 200 in a workshop is realized; the top end of the supporting upright post 120 is fixedly connected with a fixed mounting frame 130, the fixed mounting frame 130 is rotatably connected with two lifting main arms 140 which are arranged in parallel up and down, the end parts of the two lifting main arms 140 rotate with a movable mounting frame 150 to form a parallelogram transmission mechanism, and the movable mounting frame 150 can be kept in a vertical state all the time through the stable transmission of the parallelogram transmission mechanism; a telescopic cylinder 160 is hinged between the lifting main arm 140 and the support upright 120, and the lifting main arm 140 can be driven to rotate in a vertical plane by extending and shortening the telescopic cylinder 160, so that the lifting of the movable mounting rack 150 is realized; the top of the movable mounting frame 150 is rotatably connected with the auxiliary rotary arm 170 through a bearing, and due to the existence of the parallelogram transmission mechanism, when the telescopic cylinder 160 drives the lifting main arm 140 to ascend or descend, the movable mounting frame 150 is always kept in a vertical state, so that the auxiliary rotary arm 170 can rotate in a horizontal plane, the size of the tool 100 is changed, and the tool 100 can be conveniently moved; the end of the rotary auxiliary arm 170 is rotatably connected with the bearing jig 180, the distance between the bearing jig 180 and the looping car 300 can be adjusted through the rotation of the rotary auxiliary arm 170, the posture of the bearing jig 180 can be adjusted in time by matching the rotation of the bearing jig 180, the bearing jig 180 can be conveniently moved under the torsion spring 200, and meanwhile, the torsion spring 200 can be conveniently moved to the installation position.

In one embodiment, as shown in fig. 1 and 4, the supporting fixture 180 includes a horizontal supporting plate 181, a radial supporting plate 182, a longitudinal connecting plate 183, and an ear plate 184; the number of the radial support plates 182 and the lug plates 184 is two, and the two radial support plates 182 are fixedly connected to two ends of the horizontal carrier plate 181 in a one-to-one correspondence manner, and are used for radially supporting two ends of the torsion spring 200 and simultaneously limiting the axial movement of the torsion spring 200. The longitudinal connecting plate 183 is fixedly connected with one end of the horizontal bearing plate 181 in the width direction, and can also be fixedly connected with the radial supporting plate 182; two otic placodes 184 are fixed connection on longitudinal tie 183 one on top of the other to at the upper and lower both sides fixedly connected with axis of rotation of revolute pair arm 170 tip, this axis of rotation one-to-one wears to locate in the hole of two otic placodes 184, realizes that revolute pair arm 170 tip is connected with the rotation that bears tool 180, so that bear tool 180 can rotate in the horizontal plane, and then be convenient for the adjustment and bear the gesture of tool 180, just also make and bear tool 180 and torsion spring 200 just right.

So set up because: the looper 300 does not have a supporting point (in the vertical direction) of the torsion spring 200, and the torsion spring 200 is fixedly coupled to a cross member of the looper 300 by a plurality of horizontally disposed coupling bolts, so that the torsion spring 200 needs to be supported in the vertical direction when the torsion spring 200 is removed and installed. In the embodiment, the longitudinal distance (the direction of the double arrow in the figure) between the carrying fixture 180 and the installation position of the torsion spring 200 is adjusted by moving the moving base 110 in the extending direction of the translation rail 400, the lateral distance (the direction of the single arrow in the figure) between the carrying fixture 180 and the installation position of the torsion spring 200 is adjusted by rotating the rotary sub-arm 170 in the horizontal plane, and the orientation of the carrying fixture 180 is changed by rotating the rotary sub-arm 170, so that the carrying fixture 180 is rotatably connected to the end of the rotary sub-arm 170, the orientation of the carrying fixture 180 can be timely adjusted by the relative rotation between the carrying fixture 180 and the rotary sub-arm 170, so as to move the carrying fixture 180 to the installation position of the torsion spring 200, and the two radial supporting plates 182 of the carrying fixture 180 support the two ends of the torsion spring 200 in the installation position by the lifting main arm 140.

Preferably, as shown in fig. 4, a V-shaped support groove 185 is formed at the top of the radial support plate 182 to axially limit the torsion spring 200 and also to radially limit the torsion spring 200 by the radial support plate 182.

With the arrangement, the V-shaped support grooves 185 are formed in the two radial support plates 182, so that the torsion spring 200 can be radially supported, the axial limit of the torsion spring 200 can be realized, the radial movement of the torsion spring 200 can be prevented, and the safety of the torsion spring 200 in the hoisting process can be improved.

In one embodiment, as shown in fig. 3 and 5, the reciprocating movement of the moving base 110 in the extending direction (the direction of the double arrow in the figure) of the translation track 400 can adopt any known moving method, such as laying a moving track parallel to the translation track 400 under the moving base 110 and making the moving base 110 slidably connected to the moving track.

Describing a moving manner of the moving base in detail, as shown in fig. 3, the moving base 110 includes a vehicle body 111, a driving wheel 112, and a steering wheel 113; two driving wheels 112 are arranged on two sides of the rear end of the vehicle body 111, and the driving wheels 112 are in transmission connection with the motor and are used for driving the movable base 110 to move. Two steering wheels 113 are disposed on two sides of the front end of the vehicle body 111, and are controllably rotatable in a horizontal plane for controlling the moving direction of the moving base 110.

This is so set up because: after the tooling 100 is moved to one side of the looping car 300, the loading jig 180 is driven to be close to the installation position of the torsion spring 200 by moving the tooling 100 along the extension direction of the translation track 400; the tool 100 in the folded state needs to be moved in other directions to a predetermined position to attach and detach the torsion spring 200. In this embodiment, by providing the driving wheel 112 and the steering wheel 113 on the bottom of the vehicle body 111, the movement of the tool 100 can be controlled individually by controlling the rotation of the driving wheel 112, and the movement direction of the tool 100 can also be controlled by controlling the steering of the steering wheel 113.

In one embodiment, as shown in fig. 1, a slewing bearing 114 is installed at the middle of the top of the moving base 110, and the bottom end of the support column 120 is fixedly connected to the slewing bearing 114, so that the main lifting arm 140 can rotate in a horizontal plane.

So set up because: the torsion spring 200 is installed in the middle of the looping car 300, and after the tool 100 in the folded state moves to one side of the looping car 300, the longitudinal distance between the auxiliary rotating arm 170 and the looping car 300 can be adjusted through the rotation of the supporting upright 120, so that the bearing jig 180 can be conveniently moved to the installation position of the torsion spring 200.

In one embodiment, as shown in fig. 1 and 2, the fixed mounting frame 130 is a U-shaped frame with an upward opening, the bottom end of the U-shaped frame is fixedly connected to the top end of the supporting upright 120, two main lifting arms 140 are arranged in the U-shaped frame in parallel one above the other, and each main lifting arm 140 is rotatably connected to the U-shaped frame through a rotating shaft 141, so that the main lifting arms 140 can rotate around the U-shaped frame in a vertical plane. The movable mounting frame 150 is a U-shaped frame with a downward opening, the two main lifting arms 140 are arranged in the U-shaped frame in parallel one above the other, and the right end of each main lifting arm 140 is rotatably connected with the U-shaped frame through a rotating shaft 141, so that the two main lifting arms 140, the movable mounting frame 150 and the fixed mounting frame 130 form a parallelogram transmission mechanism for driving the movable mounting frame 150 to lift through the lifting of the main lifting arms 140; meanwhile, the top end of the movable mounting bracket 150 is rotatably connected to one end of the swing sub-arm 170 through a bearing, so that the swing sub-arm 170 can rotate in a horizontal plane.

So set up because: in the moving process of the rotary auxiliary arm 170, the bearing jig 180 moves along with the rotary auxiliary arm 170, and in order to accurately move the bearing jig 180 to the installation position of the torsion spring 200, the rotary auxiliary arm 170 needs to be rotated in a horizontal plane all the time; however, the lifting and lowering of the loading jig 180 are achieved by the rotation of the main lifting arm 140 in the vertical plane, and the lifting of the main lifting arm 140 causes the auxiliary rotating arm 170 to rotate synchronously in the vertical plane, and causes the posture of the loading jig 180 to tilt, so that the torsion spring 200 is unbalanced in stress. In this embodiment, two lifting main arms 140 arranged in parallel up and down are provided, one end of each of the two lifting main arms 140 is rotatably connected to the U-shaped frame with the upward opening through the rotating shaft 141, and the other end of each of the two lifting main arms 140 is rotatably connected to the U-shaped frame with the downward opening through the rotating shaft 141, so that the two lifting main arms 140, the movable mounting frame 150 and the fixed mounting frame 130 form a parallelogram transmission mechanism (the axes of the four rotating shafts 141 are located at four vertexes of a parallelogram), and since the fixed mounting frame 130 is fixedly connected to the top end of the supporting upright 120, the movable mounting frame 150 and the fixed mounting frame 130 can be always in a parallel state under the transmission action of the parallelogram transmission mechanism, that is, the movable mounting frame 150 can be always in a vertical state, and thus the rotary sub-arm 170 can rotate in a horizontal plane during the lifting of the lifting main arms 140.

In one embodiment, as shown in fig. 1 and 2, the telescoping cylinder 160 can be any type of telescoping mechanism that can be extended and shortened, such as a hydraulic cylinder; a mounting plate 121 is fixedly connected to the middle of the support column 120, a hinge seat is mounted on the mounting plate 121, a cylinder end of the hydraulic cylinder is hinged to the hinge seat on the mounting plate 121 through a pin shaft, and a piston end of the hydraulic cylinder is rotatably connected to the main lifting arm 140 through a rotating shaft 141.

So set up because: the extension or contraction of the hydraulic cylinder is easily controlled, thereby facilitating the adjustment of the ascent or descent of the lifting main arm 140.

Specifically, one end of the lifting main arm 140, which is located at the upper side and away from the movable mounting frame 150, extends in the length direction and is rotatably connected with a piston rod end of the hydraulic cylinder.

In one embodiment, as shown in fig. 1 and 2, the middle portion of the upper lifting main arm 140 is rotatably connected to the stationary mounting frame 130, and a weight 190 is disposed at an end of the lifting main arm 140 away from the movable mounting frame 150.

So set up because: the weight of the torsion spring 200 is 400 kg-500 kg, and the tool 100 has a large gravity center change and is easy to roll over due to the large weight of the torsion spring 200. In this embodiment, after the end of the main lifting arm 140 away from the movable mounting frame 150 is connected to the counterweight 190, a part of the gravity of the torsion spring 200 can be balanced, so as to prevent the tool 100 from rolling over.

In one embodiment, as shown in fig. 1 and 2, a lifting lug 142 is provided at the middle of the upper lifting main arm 140.

So set up because: the lifting lug 142 is arranged on the lifting main arm 140, and the tool 100 can be lifted into different loops through a crane and a steel wire rope and used for replacing the torsion spring 200 on the looping car 300 in different loops in a workshop.

The utility model discloses a use of frock as follows:

the torsion spring 200 is disassembled as follows:

s11: by adopting a remote control mode, the tool 100 in a folded state is moved to one side of the looping car 300 along the extension direction of the translation track 400 by controlling the movement of the movable base 110; and then, the swing sub-arm 170 is controlled to rotate in a manual mode to unfold the swing sub-arm 170, so that the replacement tool 100 is converted from the folded state to the unfolded state.

S12: the lifting main arm 140 is controlled to descend by the extension of the hydraulic cylinder until the loading jig 180 descends below the torsion spring 200, then the movement of the movable base 110 is controlled by remote control to drive the loading jig 180 to move right below the torsion spring 200, and finally the lifting main arm 140 is controlled to ascend by the hydraulic cylinder, so that the loading jig 180 supports the torsion spring 200 in the vertical direction.

The transverse relative position between the bearing jig 180 and the torsion spring 200 can be adjusted by controlling the rotation of the auxiliary rotary arm 170, or the posture of the bearing jig 180 can be adjusted by controlling the relative rotation between the bearing jig 180 and the auxiliary rotary arm 170, so that the bearing jig 180 is opposite to the torsion spring 200.

S13: the torsion spring 200 is disconnected from the looping car 300, that is, the connection bolt between the torsion spring 200 and the cross member of the looping car 300 is removed.

S14: after the torsion spring 200 is completely disassembled, the movement of the movable base 110 is controlled by remote control, so that the torsion spring 200 is far away from the looping car 300; then, the tool 100 carrying the torsion spring 200 is converted from the unfolded state to the folded state by controlling the rotation of the swing sub-arm 170.

S15: the torsion spring 200 is moved to a designated position by controlling the movement of the moving base 110 in a remote control manner.

The method for mounting the torsion spring 200 includes the following steps:

s21: by adopting a remote control mode, firstly, the tooling 100 bearing the torsion spring 200 is moved to one side of the looping car 300 by controlling the movement of the movable base 110; then, the swing sub-arm 170 is controlled to rotate manually for unfolding the swing sub-arm 170, thereby converting the replacement tool from the folded state to the unfolded state.

S22: the lifting of the main lifting arm 140 is controlled by the extension of the hydraulic cylinder, so that the bearing jig 180 drives the torsion spring 200 to move to a position equal to the mounting position, the rotation of the auxiliary rotating arm 170 drives the bearing jig 180 to drive the torsion spring 200 to move transversely to a position opposite to the mounting position, and finally the movement of the movable base 110 is controlled, so that the bearing jig 180 drives the torsion spring 200 to move longitudinally to the mounting position along the extension direction of the translation rail.

S23: torsion spring 200 is attached to looping car 300, i.e., torsion spring 200 is fixedly attached to a cross member of looping car 300 by means of attachment bolts.

S24: the lifting of the main lifting arm 140 is controlled by the extension and contraction of the hydraulic cylinder, so that the bearing jig 180 descends and is separated from the torsion spring 200; the tool 100 is then converted from the unfolded state to the folded state by controlling the rotation of the sub-rotary arm 170.

S25: the movement of the movable base 110 is controlled in a remote control manner, so that the displacement of the tool 100 is realized.

It should be noted that the rotation of the supporting upright 120, the rotation of the rotary sub-arm 170, and the rotation of the carrying fixture 180 are all manual rotations.

Compared with the prior art, the method has the following beneficial technical effects:

(1) Liberation of labor and reduction of working strength

In the prior construction method, 5-6 workers are required to continuously operate for 2-3 days to complete the replacement of the torsion spring on all looping cars, but 1-2 workers are required to complete the replacement of the torsion spring by using the tool in the application, so that the labor intensity of the constructors is greatly reduced, and the productivity is liberated.

(2) And the construction safety and the labor efficiency are improved

By using the tool, the working time of a constructor in a loop can be shortened, the risk of extrusion injury possibly generated is reduced, the construction safety is improved, the construction time is greatly reduced, and the production labor efficiency is improved; meanwhile, the new hoisting method can also avoid the damage to the silicon steel strip in the traditional torsion spring replacing process, and the comprehensive strength of regional equipment maintenance business can be improved by using a new tool.

(3) Good economic benefit

The construction method for replacing manpower with the tool in cooperation with the chain block to replace the torsion spring can greatly reduce labor intensity, labor cost is reduced by 12000-18000 yuan/time each time, safety is greatly improved, and operation efficiency is improved by 2-3 times.

(4) Good safety benefit

By using the tool, the labor intensity of workers can be reduced, the operation time is shortened, the operation labor efficiency is improved, and the safety risk caused by manual labor of a plurality of people due to narrow operation position space is reduced.

(5) Good popularization benefit

The tool can be used repeatedly, has long service life and can create effects for enterprises for a long time; meanwhile, the tool can be applied and popularized in the overhaul of other overhaul teams.

(6) Good social benefit

The tool changes the original construction mode of pure manual operation, greatly reduces the safety risk in construction, and has important significance for guaranteeing the personal safety of operating personnel in construction; once popularized and applied, the labor intensity of staff doing the work can be greatly reduced. Meanwhile, the tool shortens the time of each overhaul, wins more time for the production operation of a steel rolling workshop, and is beneficial to improving the production benefit.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides a frock for changing torsion spring on looping car which characterized in that, frock (100) includes:

a mobile base (110);

the bottom end of the supporting upright post (120) is connected with the movable base (110);

the mounting frame (130), the mounting frame (130) is fixedly connected with the supporting upright post (120);

the number of the main lifting arms (140) is at least two, the main lifting arms (140) are arranged in parallel up and down, and the main lifting arms (140) are rotatably connected with the fixed mounting frame (130);

the movable mounting rack (150), the movable mounting rack (150) is rotatably connected with the main lifting arm (140);

one end of the telescopic cylinder (160) is hinged with the supporting upright post (120), and the other end of the telescopic cylinder (160) is rotatably connected with the lifting main arm (140) so as to drive the movable mounting rack (150) to lift through the expansion and contraction of the telescopic cylinder (160);

the auxiliary rotating arm (170), one end of the auxiliary rotating arm (170) is rotatably connected with the movable mounting rack (150), and the auxiliary rotating arm (170) can rotate in a horizontal plane;

and the bearing jig (180) is rotatably connected with the other end of the rotating auxiliary arm (170) and is used for bearing the torsion spring (200).

2. The tooling for replacing the torsion spring on the looping car according to claim 1, wherein the bearing jig (180) comprises a horizontal bearing plate (181), a radial support plate (182), a longitudinal connection plate (183) and an ear plate (184), the radial support plate (182) is fixedly connected to two ends of the horizontal bearing plate (181) in the length direction, and the longitudinal connection plate (183) is fixedly connected to one end of the horizontal bearing plate (181) in the width direction; the two ear plates (184) are fixedly connected to the longitudinal connecting plate (183) and are connected with one end of the rotating auxiliary arm (170) in a rotating mode, so that the bearing jig (180) can rotate in a horizontal plane.

3. The tooling for replacing the torsion spring on the looping car according to claim 2, characterized in that a V-shaped supporting groove (185) is formed in the top of the radial supporting plate (182) so that the radial supporting plate (182) can limit the torsion spring (200) in the radial direction.

4. The tooling for replacing the torsion spring on the looping car according to claim 1, characterized in that the moving base (110) comprises a car body (111), a driving wheel (112) and a steering wheel (113), wherein the driving wheel (112) is arranged at the rear end of the car body (111) and is used for driving the moving base (110) to move, and the steering wheel (113) is arranged at the front end of the car body (111) and is used for controlling the moving direction of the moving base (110).

5. The tooling for replacing the torsion spring on the looping car as claimed in claim 1, wherein a rotary bearing (114) is installed on the top of the moving base (110), and the bottom end of the supporting upright (120) is fixedly connected with the rotary bearing (114) so that the main lifting arm (140) can rotate in a horizontal plane.

6. The tooling for replacing the torsion spring on the looping car as claimed in claim 1, wherein the fixed mounting frame (130) is a U-shaped frame with an upward opening, the U-shaped frame is fixedly connected with the top end of the supporting upright post (120), and the two main lifting arms (140) are arranged in parallel one above the other in the U-shaped frame and are rotatably connected with the U-shaped frame through a rotating shaft (141).

7. The tooling for replacing the torsion spring on the looping car as claimed in claim 1, wherein the movable mounting frame (150) is a U-shaped frame with a downward opening, and two main lifting arms (140) are arranged in the U-shaped frame in parallel one above the other and are rotatably connected with the U-shaped frame through a rotating shaft (141); the top end of the movable mounting frame (150) is rotatably connected with one end of the rotary auxiliary arm (170) through a bearing.

8. The tooling for replacing a torsion spring on a looping car according to claim 1, characterized in that said telescoping cylinder (160) comprises a hydraulic cylinder; and the middle part of the supporting upright post (120) is fixedly connected with a mounting plate (121), the cylinder body end of the hydraulic cylinder is hinged with the mounting plate (121) through a pin shaft, and the piston end is rotatably connected with the lifting main arm (140) through a rotating shaft (141).

9. The tooling for replacing the torsion spring on the looping car as claimed in claim 1, wherein the middle of the lifting main arm (140) above is rotatably connected with the fixed mounting frame (130), and a counterweight (190) is arranged at one end of the lifting main arm (140) far away from the movable mounting frame (150).

10. The tooling for replacing the torsion spring on the looping car as recited in claim 1, characterized in that a lifting lug (142) is arranged at the middle part of the lifting main arm (140).

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