CN202241358U

CN202241358U - Support-pull scissors

Info

Publication number: CN202241358U
Application number: CN201120348616XU
Authority: CN
Inventors: 陈德云; 管继尧
Original assignee: XIANGTAN LIANCHENG MACHINERY CO Ltd
Current assignee: XIANGTAN LIANCHENG MACHINERY CO Ltd
Priority date: 2011-09-19
Filing date: 2011-09-19
Publication date: 2012-05-30
Anticipated expiration: 2021-09-19

Abstract

The utility model discloses a pair of support-pull scissors, and the pair of support-pull scissors is mainly used for solving the problems of large volume, small shearing force and the like in the existing shearing device. The pair of support-pull scissors mainly comprises a pair of scissors, one group of connecting rods and a support-pull device. One group of connecting rods drive a scissor handle to realize a shearing function. The pair of support-pull scissors is convenient to use, has the advantages of simple structure and small volume, and is mainly used for mechanical production, bridge construction, transportation, building engineering, rescue and the like.

Description

The top is drawn and is cut

Technical field

The utility model relates to a kind of shear, especially produces or rescues and use powerful shear.

Background technology

At present, generally there are problems such as volume is excessive, shearing force is little in existing shear.In the activity in production, often need powerful shear; Traffic or other security incidents often take place in daily life, and particularly in today that automobile quantity increases severely, the traffic accident accident is more and more, and the scene of the accident has personnel or visual plant, goods and materials to need rescue.Therefore, be necessary to design a kind of shear, be used for producing and pick-up operation.

Summary of the invention

The purpose of the utility model provides a kind of top and draws and cut.

The technical solution adopted for the present invention to solve the technical problems is: comprise scissors, shear shank; Scissors comprises blade and handle of a knife; Also comprise one group of connecting rod and jacking-drawing device; Said one group of connecting rod comprises first connecting rod and second connecting rod, and the end of said first connecting rod 608a and second connecting rod 608b connects a pivot pin 601 simultaneously, and the other end of first connecting rod 608a and second connecting rod 608b connects the first handle of a knife 609a and the second handle of a knife 609b respectively; Said pivot pin 601 connects jacking-drawing device, and jacking-drawing device driving shaft pin 601 is done to come and go and moved.

Further, said jacking-drawing device is established bearing group and bearing block, jacking-drawing device the top state under, a shaft strength is arranged in the said bearing group, jacking-drawing device under the state that draws, another shaft strength of said bearing group.

Further again, jacking-drawing device comprises that also sleeve 107, top draw nut 103, large bevel gear 108, very useful bearing 109, bearing block 112, draw with bearing 111, screw mandrel 104, housing 110, top draw piece 106, leading truck 606; Sleeve 107, top are drawn nut 103, large bevel gear 108, very useful bearing 109, bearing block 112, are drawn with bearing 111 and be set in screw mandrel 104 successively; And place in the housing 110, said bearing 109 lays respectively at the two ends of bearing block 112, and said top is drawn between nut 103 and the leading screw 104 and is used thread connection; The top draws nut that sleeve 107 is housed; Sleeve 107 connects top draw piece 106, and top draw piece 106 coupled axle-pins 601, pivot pin 601 place in the leading truck (606) and can do to come and go and move.

Connecting rod

608a, 608b and handle of a

knife

611a, 611b link to each other through

pivot pin

611a, 611b respectively.

Thread connection is that angular thread connects or square thread connects.Very useful bearing 109 can be plane bearing or tapering bearing with drawing with bearing 111.Said screw mandrel 109 extends to outside the base 112 and with drive unit and links to each other through clutch.Drive unit can be a worm wheel gearbox, and the worm screw of said worm wheel gearbox connects manually or electric wrench.Said clutch can be a splined clutch.

Leading truck (610) one ends are established first joint 117; Leading truck 610 other ends connect shear shank 606 or connect detachable leading truck; Be that leading truck 610 other ends are established second joint 118 and said shear shank 606 is established the 3rd joint; Said second joint 118 links to each other with the 3rd joint, establishes travel switch in the leading truck 610.

The invention has the beneficial effects as follows, drive handle of a knife, realized the shearing function through one group of connecting rod; Jacking-drawing device has been realized " top " and " drawing " function through increasing by one group of bearing and bearing block, adopts cylindrical roller thrust bearing, and the scope of device holding capacity can reach the 3-500 ton, and easy to use, simple in structure, device volume is little.Can be used for machinery production, bridge construction, architectural engineering and rescue etc.

Description of drawings

Fig. 1 is the structural representation of the utility model when its blade place such as open mode.

Fig. 2 is the structural representation of the utility model when its blade place such as closure state.

Fig. 3 is detachable leading truck sketch map.

101. ratchet groups among the figure, 102. cone pinions, nut is drawn, 104. screw mandrels, 106. top draw pieces, 107. sleeves in 103. tops; 108. large bevel gear, 109. bearings, 110. housings, 111. bearings, 112. bearing blocks, 113. nuts; 114. bottom nut, 116. ratchet shafts, 117. first joints, 118. second joints, 119. the 3rd joints, 201. turbine gear boxes; 202. coupling sleeve, 203. screw mandrel splined shafts, 601,611a, 611b. bearing pin, 602,603. blades, 605. scissors connectors; 606. shear shank, 607. square threads, 608a, 608b. connecting rod, 609a, 609b. handle of a knife, 610. leading trucks.

The specific embodiment

Referring to Fig. 1, Fig. 2, the utility model comprises scissors, shear shank 606, and scissors comprises blade 602,603; Handle of a

knife

611a, 611b also comprise one group of connecting rod and jacking-drawing device, and one group of connecting rod comprises first connecting rod and second connecting rod; The end of first connecting rod 608a and second connecting rod 608b connects a pivot pin 601 simultaneously; The other end of first connecting rod 608a and second connecting rod 608b connects the first handle of a knife 611a and the second handle of a knife 611b respectively, and pivot pin 601 connects jacking-drawing device, and jacking-drawing device driving shaft pin 601 is done to come and go and moved.Connecting

rod

608a, 608b and handle of a

knife

611a, 611b link to each other through

pivot pin

611a, 611b respectively.

Jacking-drawing device is established bearing group and bearing block, jacking-drawing device the top state under, a shaft strength is arranged in the bearing group, jacking-drawing device under the state that draws, another shaft strength of bearing group.

Jacking-drawing device comprises that also sleeve (107), top draw nut (103), large bevel gear (108), very useful bearing (109), bearing block (112), draw with bearing (111), screw mandrel (104), housing (110), top draw piece (106), leading truck (606); Sleeve 107, top are drawn nut 103, large bevel gear 108, very useful bearing 109, bearing block 112, are drawn with bearing 111 and be set in screw mandrel 104 successively, and place in the housing 110, and bearing 109 lays respectively at the two ends of bearing block 112; The top is drawn between nut 103 and the leading screw 104 and is used thread connection; The top draws nut that sleeve 107 is housed, and sleeve 107 connects top draw piece 106, top draw piece 106 coupled axle-pins 601;, pivot pin 601 places in the leading truck 606 and can do to come and go and move.

Thread connection is that angular thread connects or square thread connects.Very useful bearing 109 can be plane bearing or tapering bearing with drawing with bearing 111.Bearing 109 can be tapering bearing or cylindrical roller thrust bearing (GB/T4663-1994) with bearing 111.Screw mandrel 104 extends to outside the base 112, promptly establishes leading screw splined shaft 203 and links to each other through clutch with drive unit.Drive unit can be a worm wheel gearbox, and like SWL series worm wheel gearbox, the worm screw of worm wheel gearbox is jointly moving or electric wrench through coupling sleeve 202.Clutch can be a splined clutch.

Leading truck 610 1 ends are established first joint 117, and leading truck 610 other ends connect shear shank 606 or connect detachable leading truck, and promptly leading truck 610 other ends are established second joint 118 and shear shank 606 is established the 3rd joint, and second joint 118 links to each other with the 3rd joint.When adopting electric wrench to drive, leading truck 610 peripheral hardware travel switches, top draw piece 106 is established travel switch and is met and discussed, and realizes shearing the automatic control that puts in place with return, avoids damage equipment.

Fig. 1 and Fig. 2 are visible, can realize manual drives through ratchet group 101, simultaneously, can also realize electronic or manual drives through the turbine gearbox, to adapt to different occasions.

Large bevel gear 8 is driven by cone pinion 102, and cone pinion 102 provides two-way revolving force by ratchet group 101.

Fig. 1 representes jacking-drawing device under the state of " drawing ", and bearing 110 is stressed; Fig. 2 representes jacking-drawing device under the state on " top ", and bearing middle (center) bearing 109 is stressed.

Referring to Fig. 3, the length of detachable leading truck can be 500mm to 2000mm, as selects three kinds of length, can be respectively 500mm, 1000mm, 2000mm.

The utility model also can be implemented through the concrete mode that adopts other.Therefore, the change of in meaning that is equal to claims content and scope, being made all should be regarded as belonging to the scope of the utility model.

Claims

1. a top is drawn and is cut; Comprise scissors, shear shank, scissors comprises blade and handle of a knife, it is characterized in that: also comprise one group of connecting rod and jacking-drawing device; Said one group of connecting rod comprises first connecting rod and second connecting rod; One end of said first connecting rod (608a) and second connecting rod (608b) connects a pivot pin (601) simultaneously, and the other end of first connecting rod (608a) and second connecting rod (608b) connects first handle of a knife (611a) and second handle of a knife (611b) respectively, and said pivot pin (601) connects said jacking-drawing device.

2. top according to claim 1 is drawn and cut, and it is characterized in that: said jacking-drawing device is established bearing group and bearing block.

3. top according to claim 2 is drawn and cut, and it is characterized in that: jacking-drawing device comprises that also sleeve (107), top draw nut (103), large bevel gear (108), very useful bearing (109), bearing block (112), draw with bearing (111), screw mandrel (104), housing (110), top draw piece (106), leading truck (606);

Sleeve (107), top are drawn nut (103), large bevel gear (108), very useful bearing (109), bearing block (112), are drawn with bearing (111) and be set in screw mandrel (104) successively; And place in the housing (110); Said bearing (109) lays respectively at the two ends of bearing block (112); Said top is drawn between nut (103) and the screw mandrel (104) and is used thread connection; The top draws nut that sleeve (107) is housed, and sleeve (107) connects top draw piece (106), top draw piece (106) coupled axle-pin (601); Pivot pin (601) places in the leading truck (606) and can do to come and go and move, and connecting rod (608a, 608b) links to each other through pivot pin (611a, 611b) respectively with handle of a knife (611a, 611b).

4. top according to claim 3 is drawn and cut, and it is characterized in that: said thread connection is that angular thread connects or square thread connects.

5. top according to claim 3 is drawn and is cut, and it is characterized in that: said very useful bearing (109) and to draw with bearing (111) be plane bearing or tapering bearing.

6. top according to claim 3 is drawn and cut, and it is characterized in that: said screw mandrel (109) extends to outside the base (112) and with drive unit and links to each other through clutch.

7. top according to claim 3 is drawn and cut, and it is characterized in that: drive unit is a worm wheel gearbox, and the worm screw of said worm wheel gearbox connects manually or electric wrench.

8. top according to claim 3 is drawn and cut, and it is characterized in that: said clutch is a splined clutch.

9. top according to claim 3 is drawn and is cut; It is characterized in that: said leading truck (610) one ends are established first joint (117); Leading truck (610) other end connects shear shank (606) or leading truck (610) other end establishes second joint (118) and said shear shank (606) is established the 3rd joint; Said second joint (118) links to each other with the 3rd joint, and said leading truck (610) is established travel switch.