CN208289611U - The mill cable architecture of wire rod processing unit - Google Patents

Abstract

The utility model provides a kind of mill cable architecture of wire rod processing unit, including turntable, the first gear unit, the second gear unit, the first linkage unit, the first adjustment module, the second gear unit and second adjustment module.Thus, first abrasive band can be set around to the front side of the first gear unit, the front side of second gear unit and the first linkage unit, and the second abrasive band is set around to the rear side of the first gear unit, the rear side of second gear unit and the second linkage unit, the first gear unit is set to drive the first abrasive band to grind with the second abrasive band to wire rod simultaneously with the second gear unit, and the tension in the first abrasive band Yu the second abrasive band can be adjusted separately with the first adjustment module and second adjustment module according to the wire rod of different line footpaths, in addition to avoiding the first abrasive band and the second abrasive band from being broken, the first abrasive band and the second abrasive band can be more set to be tightly attached to wire rod, and the effect of reaching uniformly grinding and saving milling time.

Description

The mill cable architecture of wire rod processing unit

Technical field

The utility model relates to a kind of mill cable architecture of wire rod processing unit, relate more particularly to a kind of wire rod that can be used as Grinding uses.

Background technique

General wire rod processing unit, including have there are two shaft gear unit, be set around it is ring-like in two shafts Lapping tape and the motor for interlocking two shafts；Relevant wire rod can be made to be passed through by gear unit as a result, and be driven two shafts, And the movement for grinding the ring abrasive belt to the surface of wire rod.

For above-mentioned existing wire rod processing unit, though using rotating shaft transmission ring abrasive belt, and to the table of wire rod The movement that face is ground；But due to being provided only with ring abrasive belt in the wire rod processing unit, therefore can only be to wire rod One side is once ground, and the wire rod is caused to have the non-uniform situation of grinding, and make the metal wire rod in When carrying out abrasive action, multiple repetition grinding need to be carried out to same wire rod, the abrasive action needed for could completing, and then in grinding Mill leads to the waste of man-hour process when acting.And since the ring abrasive belt can not carry out the adjustment of tension according to use demand, Cause the ring abrasive belt when grinding different wire rods, wire rod can be made not grind uniformly because of tension deficiency, or because opening Power is excessive and is broken the ring abrasive belt in process of lapping.

Utility model content

At least one embodiment based on the utility model, can be according to the wire rod of different line footpaths with the first adjustment module and second Adjustment module adjusts separately the tension in the first abrasive band Yu the second abrasive band, in addition to avoiding the first abrasive band and the second abrasive band from being broken, more The first abrasive band and the second abrasive band can be made to be tightly attached to wire rod, and achieve the purpose that uniformly to grind and save milling time.

The utility model provides a kind of mill cable architecture of wire rod processing unit, to drive the first abrasive band and the second abrasive band, Grind first abrasive band to wire rod with second abrasive band comprising: turntable, the first gear unit, the second transmission Unit, the first linkage unit and the second linkage unit；The turntable centre is equipped with outlet hole, and the outlet hole is to guide The wire rod；First gear unit is set to the turntable；Second gear unit is set to the turntable and with described the One gear unit it is opposite to；First linkage unit is set to the turntable and is located at first gear unit and described second Between gear unit, first linkage unit includes the first adjustment module, and first abrasive band is set around first transmission The front side of unit, the front side of second gear unit and first linkage unit, the first adjustment module is to adjust The tension in first abrasive band；Second linkage unit is set to the turntable and is located at first gear unit and described the Between two gear units, and second linkage unit is opposite with first linkage unit to the second linkage unit packet Second adjustment module is included, second abrasive band is set to the rear side of the rear side of first gear unit, second gear unit With second linkage unit, tension of the second adjustment module to adjust second abrasive band.

Through the foregoing embodiment, the utility model provides a kind of mill cable architecture of wire rod processing unit.It can be according to different line footpaths Wire rod the tension in the first abrasive band Yu the second abrasive band is adjusted separately with the first adjustment module and second adjustment module, except avoiding first Except abrasive band and the fracture of the second abrasive band, can more make the first abrasive band and wire rod is tightly attached in the second abrasive band, and reach uniformly grinding and Save the purpose of milling time.

Optionally, the turntable further includes shaft and master gear, and the shaft is located at the centre of the turntable, The master gear is set to the shaft, and the master gear is driven first gear unit and second gear unit, described Outlet hole is set to the shaft.

Optionally, first gear unit include first bearing, the first shaft, the first follower, first band driving wheel and First gear, the first bearing are incorporated into the turntable, and first shaft is set to the first bearing, and described first is passive Wheel is set to first shaft and is located at the one side of turntable, and the first band driving wheel is set to first shaft and is located at described the The front side of one follower, the first gear be set to first shaft and be located at turntable another side, first abrasive band around Set on the first band driving wheel, second abrasive band is set around first follower, the first gear and the master gear Intermeshing.

Optionally, second gear unit include second bearing, the second shaft, second band driving wheel, the second follower and Second gear, the second bearing are incorporated into the turntable, and second shaft is set to the second bearing, and described second drives Wheel is set to second shaft and is located at the one side of turntable, and second follower is set to second shaft and is located at described the Two front sides with driving wheel, the second gear be set to second shaft and be located at turntable another side, first abrasive band around Set on second follower, second abrasive band is set around the second band driving wheel, the second gear and the master gear Intermeshing.

Optionally, first linkage unit further includes the first mandrel and the first idle pulley, and first mandrel is set In the first adjustment module, first idle pulley is set to first mandrel, and it is lazy that first abrasive band is set around described first Wheel.

Optionally, there is the first adjustment module the first axle sleeve, the first pushing block, the first pedestal, the first push rod, first to draw Block, the first fixed link and the first spring, the first axle set are incorporated into the turntable, and first pushing block is incorporated into described first One end of axle sleeve and the one side for being located at the disk body, first mandrel are set to first pushing block, and first pedestal is set to The one side of the disk body and neighbouring first pushing block, first push rod are set to first pedestal and support described first and push away Block, first pulling block are incorporated into the other end of first axle sleeve and are located at the another side of the disk body, and described first is fixed Bar is set to the centre of the another side of the disk body and the neighbouring disk body, and the both ends of first spring are respectively in connection with described the One pulling block and first fixed link.

Optionally, second linkage unit further includes the second mandrel and the second idle pulley, and second mandrel is set In the second adjustment module, second idle pulley is set to second mandrel, and it is lazy that second abrasive band is set around described second Wheel.

Optionally, there is the second adjustment module the second axle sleeve, the second pushing block, the second pedestal, the second push rod, second to draw Block, the second fixed link and second spring, second axle sleeve are incorporated into the turntable, and second pushing block is incorporated into described second One end of axle sleeve and the one side for being located at the disk body, second mandrel are set to second pushing block, and second pedestal is set to The one side of the disk body and neighbouring second pushing block, second push rod are set to second pedestal and support described second and push away Block, second pulling block are incorporated into the other end of second axle sleeve and are located at the another side of the disk body, and described second is fixed Bar is set to the centre of the another side of the disk body and the neighbouring disk body, and the both ends of the second spring are respectively in connection with described the Two pulling blocks and second fixed link.

For the enabled feature and technology contents for being further understood that the utility model, please refer to below in connection with the utility model Detailed description and accompanying drawings, but these explanations are only used to illustrate the utility model with attached drawing, rather than to the power of the utility model Sharp range makees any limitation.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new Some embodiments of type for those of ordinary skill in the art without any creative labor, can be with It obtains other drawings based on these drawings.

Fig. 1 is the appearance diagram of the utility model preferred embodiment；

Fig. 2 is another appearance diagram of the utility model preferred embodiment；

Fig. 3 is the decomposition diagram of the utility model preferred embodiment；

Fig. 4 is the use state diagram one of the utility model preferred embodiment；

Fig. 5 is the use state diagram two of the utility model preferred embodiment；

Fig. 6 is the use state diagram three of the utility model preferred embodiment；And

Fig. 7 is the use state diagram four of the utility model preferred embodiment.

Appended drawing reference

1 mill cable architecture

11 turntables

111 outlet holes

112 shafts

113 master gears

12 first gear units

121 first bearings

122 first shafts

123 first followers

124 first band driving wheels

125 first gears

13 second gear units

131 second bearings

132 second shafts

133 second band driving wheels

134 second followers

135 second gears

14 first linkage units

141 adjustment modules

1411 first axle sleeves

1412 first pushing blocks

1413 first pedestals

1414 first push rods

1415 first pulling blocks

1416 first fixed links

1417 first springs

142 first mandrels

143 first idle pulleys

15 second linkage units

151 second adjustment modules

1511 second axle sleeves

1512 second pushing blocks

1513 second pedestals

1514 second push rods

1515 second pulling blocks

1516 second fixed links

1517 second springs

152 second mandrels

153 second idle pulleys

16 first abrasive bands

17 second abrasive bands

2 wire rods

3 processing units

Specific embodiment

Below in conjunction with attached drawing, the mill knot of the wire rod processing unit of the utility model embodiment is further illustrated Structure.

Fig. 1 to Fig. 7 is please referred to, as shown, the utility model provides a kind of mill cable architecture of wire rod processing unit, it is described Mill cable architecture 1 makes first abrasive band 16 and second abrasive band 17 to line to drive the first abrasive band 16 and the second abrasive band 17 Material 2 is ground comprising turntable 11, the first gear unit 12, the second gear unit 13, the first linkage unit 14 and second Linkage unit 15.

11 centre of turntable is equipped with outlet hole 111, and the outlet hole 111 is to guide the wire rod 2.

First gear unit 12 is set to the turntable 11.

Second gear unit 13 be set to the turntable 11 and with first gear unit 12 it is opposite to.

First linkage unit 14 is set to the turntable 11 and is located at first gear unit 12 and passes with described second Between moving cell 13, first linkage unit 14 includes the first adjustment module 141, and first abrasive band 16 is set around described the The front side of one gear unit 12, the front side of second gear unit 13 and first linkage unit 14, the first adjustment Tension of the module 141 to adjust first abrasive band 16.

Second linkage unit 15 is set to the turntable 11 and is located at first gear unit 12 and passes with described second Between moving cell 13, and second linkage unit 15 and first linkage unit 14 are opposite to second linkage unit 15 include second adjustment module 151, and second abrasive band 17 is set around the rear side of first gear unit 12, second biography The rear side of moving cell 13 and second linkage unit 15, the second adjustment module 151 is to adjust first abrasive band 17 Tension.

It when wire rod 2 is ground when carrying out, removes the wire rod 2 by the outlet hole 111 of the turntable 11, and makes described the One abrasive band 16 is covered on the outer surface of the wire rod 2 with second abrasive band 17, and the turntable 11, first transmission simultaneously Unit 12 and second gear unit 13 rotate, and drive first gear unit 12 simultaneously with second gear unit 13 It is dynamic, and using first linkage unit 14 and second linkage unit 15 as assisting, make first abrasive band 16 with it is described The outer surface of wire rod 2 described in second abrasive band, 17 simultaneous grinding, to remove the attachments such as the rust staining on 2 outer surface of wire rod, paint spot Object, and reach the effect of uniformly grinding and saving milling time.

It, can the first adjustment module 141 and the second adjustment module when being intended to grind the wire rod 2 of different line footpaths 151 adjust separately first linkage unit 14 with second linkage unit 15 in the position on the turntable 11, make described First abrasive band 16 and second abrasive band 16 according to first linkage unit 14 and second linkage unit 15 adjustment and Tension appropriate is generated, the grinding of wire rod 2 is carried out with benefit, except avoiding first abrasive band 16 and 17 fracture of the second abrasive band Outside, it so that first abrasive band 16 is tightly attached to wire rod 2 with second abrasive band 17, and reach uniformly grinding and save grinding The effect of time.

And when practice, the mill cable architecture 1 can be set to the enterprising enforcement of wire rod processing unit 3 use, and it is described Wire rod processing unit 3 has the transmission shaft connecting with the mill cable architecture 1 and motor (not shown), and the wire rod processing unit 3 at least sides have withdrawal mechanism 31 corresponding with the mill cable architecture 1, and then can be driven respectively by the transmission shaft and motor The turntable 11, first gear unit 12 and second gear unit 13, and make the first abrasive band 16 described in the wire rod 2 With the withdrawal mechanism 31 is transmitted to behind second abrasive band 17, the withdrawal mechanism 31 is straightened to the wire rod 2 Movement, to keep the flatness after the grinding of wire rod 2.

In the preferred embodiments of the present invention, the turntable 11 further includes shaft 112 and master gear 113, the shaft 112 is located at the centre of the turntable 11, and the master gear 113 is set to the shaft 112, the outlet hole 111 are set to the shaft 112.It can connect the transmission shaft of the wire rod processing unit 3 by shaft 112 as a result, and the master gear The motor (not shown) of the 113 connection wire rod processing units 3, and then the transmission shaft is made to rotate institute by the shaft 112 Turntable 11 is stated, and the master gear 113 then drives first gear unit 12 and second gear unit 13, and then can increase Add the velocity of rotation of the turntable 11, first gear unit 12 and second gear unit 13, to drive described first The wire rod 2 is quickly ground in abrasive band 16 and second abrasive band 17.

In the preferred embodiments of the present invention, wherein first gear unit 12 include first bearing 121, First shaft 122, the first follower 123, first band driving wheel 124 and first gear 125, the first bearing 121 are incorporated into institute Turntable 11 is stated, first shaft 122 is set to the first bearing 121, and first follower 123 is set to first shaft 122 and it is located at the one side of turntable 11, the first band driving wheel 124 is set to first shaft 122 and to be located at described first passive The front side of wheel 123, the first gear 125 are set to first shaft 122 and are located at the another side of turntable 11.Described second passes Moving cell 13 includes second bearing 131, second the 132, second band of shaft driving wheel 133, the second follower 134 and second gear 135, The second bearing 131 is incorporated into the turntable 11, and second shaft 132 is set to the second bearing 131, second band Driving wheel 133 is set to second shaft 132 and is located at the one side of turntable 11, and second follower 134 is set to second axis Bar 132 and be located at the described second front side with driving wheel 133, the second gear 135 be set to second shaft 132 and be located at turn The another side of disk 11.

In the preferred embodiments of the present invention, first linkage unit 14 further includes the first mandrel 142 and first idle pulley 143, first mandrel 142 be set to the first adjustment module 141, first idle pulley 143 is set to institute State the first mandrel 142.Second linkage unit 15 further includes the second mandrel 152 and the second idle pulley 153, and described second Mandrel 152 is set to the second adjustment module 151, and second idle pulley 153 is set to second mandrel 152.

By the first gear unit 12 described above, second gear unit 13, first linkage unit 14 with it is described The structure of second linkage unit 15 can be such that the first gear 125 of first gear unit 12 mutually nibbles with the master gear 113 It closes, and the second gear 135 of second gear unit 13 and the master gear 113 are intermeshed, and make first abrasive band 16 are set around the second quilt of the first band driving wheel 124 of 12 front side of the first gear unit, second gear unit, 13 front side First idle pulley 143 of driving wheel 134 and first linkage unit 14, and second abrasive band 17 is set around the first transmission list First follower 123 of 12 rear side of member, the second band driving wheel 133 of second gear unit, 13 rear side and described second interlock single Second idle pulley 153 of member 15.In this way, the transmission shaft (not shown) can be made to rotate the turntable 11, and allow described in motor drive Master gear 113 rotates, and the master gear 113 is allowed to drive the first gear 125, and it is described to interlock the first gear 125 First shaft 122, and the first band driving wheel 124 is driven by first shaft 122, allow the first band driving wheel 124 to cooperate Second follower 134 and drive first abrasive band 16；It allows the master gear 113 to drive the second gear 135 simultaneously, and makes The second gear 135 interlocks second shaft 132, and drives the second band driving wheel 133 by second shaft 132, The second band driving wheel 133 is allowed to cooperate the first follower 123 and drive second abrasive band 17.And then can allow the turntable 11, First gear unit 12 is rotated simultaneously with second gear unit 13, with quickly drive first abrasive band 16 with Grind the wire rod 2 in second abrasive band 17.

In the preferred embodiments of the present invention, the first adjustment module 141 has the first axle sleeve 1411, the One pushing block 1412, the first pedestal 1413, the first push rod 1414, the first pulling block 1415, the first fixed link 1416 and the first spring 1417, first axle sleeve 1411 is incorporated into the turntable 11, and first pushing block 1412 is incorporated into first axle sleeve 1411 One end and be located at the disk body 11 one side, first mandrel 142 be set to first pushing block 1412, first pedestal 1413 are set to the one side of the disk body 11 and neighbouring first pushing block 1412, and first push rod 1414 is set on the First Body 1413 and support first pushing block 1412, first pulling block 1415 be incorporated into the other end of first axle sleeve 1411 and Positioned at the another side of the disk body 11, first fixed link 1416 is set to the another side of the disk body 11 and the neighbouring disk body 11 centre, the both ends of first spring 1417 are respectively in connection with first pulling block 1415 and first fixed link 1416。

When being intended to adjust the position of first linkage unit 14, the first push rod on first pedestal 1413 can be rotated 1414, make 1412 pushing tow of the first push rod or remove the first pushing block 1412, makes the first mandrel on first pushing block 1412 142 with movement, and then adjust the position of set first idle pulley 143 in first mandrel 142, make first idle pulley 143 Movement tightens first abrasive band 16 outward, or it is mobile inside adjust pine first abrasive band 16, with can be according to described in different line footpaths Wire rod 2 adjusts first abrasive band 16 to tension appropriate, to avoid first abrasive band 16 with the first adjustment module 141 It causes to be broken in process of lapping due to overtension.And using first pulling block 1415, first fixed link 1416 with The cooperation of first spring 1417, and make first spring because the rotation of turntable 11 generates centrifugal force in process of lapping 1417 because automatically generating elasticity tension, and then it is described to allow the pulling force of first spring 1417 to be tightly attached to first abrasive band 16 Wire rod 2.In this way, can and achieve the purpose that uniformly grind and save milling time.

In the preferred embodiments of the present invention, the second adjustment module 151 has the second axle sleeve 1511, the Two pushing blocks 1512, the second pedestal 1513, the second push rod 1514, the second pulling block 1515, the second fixed link 1516 and second spring 1517, second axle sleeve 1511 is incorporated into the turntable 11, and second pushing block 1512 is incorporated into second axle sleeve 1511 One end and be located at the disk body 11 one side, second mandrel 152 be set to second pushing block 1512, second pedestal 1513 are set to the one side of the disk body 11 and neighbouring second pushing block 1512, and second push rod 1514 is set on described second Body 1513 and support second pushing block 1512, second pulling block 1515 be incorporated into the other end of second axle sleeve 1511 and Positioned at the another side of the disk body 11, second fixed link 1516 is set to the another side of the disk body 11 and the neighbouring disk body 11 centre, the both ends of the second spring 1517 are respectively in connection with second pulling block 1515 and second fixed link 1516。

When being intended to adjust the position of second linkage unit 15, the second push rod on first pedestal 1513 can be rotated 1514, make 1512 pushing tow of the second push rod or remove the second pushing block 1512, makes the second mandrel on second pushing block 1512 152 with movement, and then adjust the position of set second idle pulley 153 in second mandrel 152, make second idle pulley 153 Movement tightens second abrasive band 17 outward, or it is mobile inside adjust pine second abrasive band 17, with can be according to described in different line footpaths Wire rod 2 adjusts second abrasive band 17 to tension appropriate, to avoid second abrasive band 17 with the second adjustment module 151 It causes to be broken in process of lapping due to overtension.And using second pulling block 1515, second fixed link 1516 with The cooperation of the second spring 1517, and make the second spring because the rotation of turntable 11 generates centrifugal force in process of lapping 1517 because automatically generating elasticity tension, and then it is described to allow the pulling force of the second spring 1517 to be tightly attached to second abrasive band 17 Wire rod 2.In this way, can and achieve the purpose that uniformly grind and save milling time.

But in addition, the demand of practice, while adjusting first linkage unit 14 and second linkage unit 15 position, or the position of first linkage unit 14 or second linkage unit 15 is individually adjusted, so that this is practical New Energy more meets the demand of actual use.

In conclusion a kind of mill cable architecture of wire rod processing unit provided by the utility model embodiment, it can be according to difference The wire rod of line footpath adjusts separately the tension in the first abrasive band Yu the second abrasive band with the first adjustment module and second adjustment module, except avoiding Except first abrasive band and the fracture of the second abrasive band, the first abrasive band and the second abrasive band can more be made to be tightly attached to wire rod, and reach uniform grinding And save the purpose of milling time.

The above description is only the embodiments of the present invention, is not the scope of the patents to limit to the utility model.

Claims (8)

1. a kind of mill cable architecture of wire rod processing unit, driving the first abrasive band and the second abrasive band, make first abrasive band with Wire rod is ground in second abrasive band, which is characterized in that the mill cable architecture of the wire rod processing unit includes:

Turntable, centre are equipped with outlet hole, and the outlet hole is to guide the wire rod；

First gear unit is set to the turntable；

Second gear unit, be set to the turntable and it is opposite with first gear unit to；

First linkage unit, set on the turntable and between first gear unit and second gear unit, First linkage unit includes the first adjustment module, and first abrasive band is set around the front side of first gear unit, institute State the second gear unit front side and first linkage unit, the first adjustment module is to adjust first abrasive band Tension；And

Second linkage unit, set on the turntable and between first gear unit and second gear unit, And second linkage unit it is opposite with first linkage unit to, second linkage unit includes second adjustment module, Second abrasive band is set around the rear side of first gear unit, the rear side of second gear unit and described second interlocks Unit, tension of the second adjustment module to adjust second abrasive band.

2. the mill cable architecture of wire rod processing unit according to claim 1, which is characterized in that the turntable further wraps Shaft and master gear are included, the shaft is located at the centre of the turntable, and the master gear is set to the shaft, the master gear It is driven first gear unit and second gear unit, the outlet hole is set to the shaft.

3. the mill cable architecture of wire rod processing unit according to claim 2, which is characterized in that the first gear unit packet First bearing, the first shaft, the first follower, first band driving wheel and first gear are included, the first bearing is incorporated into described turn Disk, first shaft are set to the first bearing, and first follower is set to first shaft and is located at the one of turntable Face, the first band driving wheel are set to first shaft and are located at the front side of first follower, and the first gear is set to First shaft and the another side for being located at turntable, first abrasive band is set around the first band driving wheel, second abrasive band It is set around first follower, the first gear and the master gear are intermeshed.

4. the mill cable architecture of wire rod processing unit according to claim 2, which is characterized in that the second gear unit packet It includes second bearing, the second shaft, the second band driving wheel, the second follower and second gear, the second bearing and is incorporated into described turn Disk, second shaft are set to the second bearing, and described second is set to second shaft with driving wheel and is located at the one of turntable Face, second follower are set to second shaft and are located at the described second front side with driving wheel, and the second gear is set to Second shaft and the another side for being located at turntable, first abrasive band is set around second follower, second abrasive band It is set around the second band driving wheel, the second gear and the master gear are intermeshed.

5. the mill cable architecture of wire rod processing unit according to claim 1, which is characterized in that first linkage unit is more It further comprise the first mandrel and the first idle pulley, first mandrel is set to the first adjustment module, and first idle pulley is set In first mandrel, first abrasive band is set around first idle pulley.

6. the mill cable architecture of wire rod processing unit according to claim 5, which is characterized in that the first adjustment module tool There are the first axle sleeve, the first pushing block, the first pedestal, the first push rod, the first pulling block, the first fixed link and the first spring, described first Axle sleeve is incorporated into the turntable, and first pushing block is incorporated into one end of first axle sleeve and is located at the one side of the disk body, First mandrel is set to first pushing block, and first pedestal is set to the one side of the disk body and neighbouring described first pushes away Block, first push rod are set to first pedestal and support first pushing block, and first pulling block is incorporated into described first The other end of axle sleeve and the another side for being located at the disk body, first fixed link are set to the another side of the disk body and neighbouring institute The centre of disk body is stated, the both ends of first spring are respectively in connection with first pulling block and first fixed link.

7. the mill cable architecture of wire rod processing unit according to claim 1, which is characterized in that second linkage unit is more It further comprise the second mandrel and the second idle pulley, second mandrel is set to the second adjustment module, and second idle pulley is set In second mandrel, second abrasive band is set around second idle pulley.

8. the mill cable architecture of wire rod processing unit according to claim 7, which is characterized in that the second adjustment module tool There are the second axle sleeve, the second pushing block, the second pedestal, the second push rod, the second pulling block, the second fixed link and a second spring, described second Axle sleeve is incorporated into the turntable, and second pushing block is incorporated into one end of second axle sleeve and is located at the one side of the disk body, Second mandrel is set to second pushing block, and second pedestal is set to the one side of the disk body and neighbouring described second pushes away Block, second push rod are set to second pedestal and support second pushing block, and second pulling block is incorporated into described second The other end of axle sleeve and the another side for being located at the disk body, second fixed link are set to the another side of the disk body and neighbouring institute The centre of disk body is stated, the both ends of the second spring are respectively in connection with second pulling block and second fixed link.