CN201808076U

CN201808076U - Universal shearing and expanding pinchers

Info

Publication number: CN201808076U
Application number: CN2010205361287U
Authority: CN
Inventors: 卢文杰; 王宏超; 朱人杰; 崔赟
Original assignee: Shanghai Maritime University
Current assignee: Shanghai Maritime University
Priority date: 2010-09-20
Filing date: 2010-09-20
Publication date: 2011-04-27
Anticipated expiration: 2020-09-20

Abstract

The utility model provides universal shearing and expanding pinchers, which comprise two blades. A bolt hole and a chute are formed on the two blades respectively, and the two blades are fixed on a phase lock loop through the bolt holes; the pinchers also comprise a box body, the inner surface of which is provided with screw threads; the middle part of the phase lock loop is provided with a gear; steel balls are jacked on two sides of the gear, and the steel balls are jacked on the box body through springs; a hole is reserved in the center of the phase lock loop, one end of a main shaft passes through the hole reserved in the center of the phase lock loop, and the other end of the main shaft is arranged in a screw; and the screw is connected with a secondary shaft, the secondary shaft is provided with a bevel gear, a crank bevel gear is vertical to the bevel gear, and the middle part of the crank bevel gear is connected with a crank. The universal shearing and expanding pinchers can realize large axial force output with small input torque according to screw thread transmission and can play a role in axial positioning; and by bevel gear transmission, screw thread transmission and plane mechanism motion, the input rotary motion of the crank is converted into rotary motion of the blades around a twisting point, and shearing and expansion of steel bars and the like are finally realized.

Description

Universal cutting expanded pincers

Technical field

The utility model relates to a kind of cutting and expands pincers, is specifically related to a kind ofly to be applicable to earthquake, caves in, universal the cutting of dangerous environment of explosion expand pincers.

Background technology

With regard to small-sized reinforcing bar is cut expansion equipment, domestic abrasive machine and two kinds of forms of electric hydaulic of mainly containing.Although the former is simple in structure, can cut off the metal bar material of plurality of specifications, the emery wheel loss is big, efficient is low, and because of dust, noise penalty environment.Electric hydaulic is cut the monoblock type that all adopts working head, the pump housing, fuel tank, motor etc. to fit together, improved efficient than grinding wheel type, improved condition of work, but because labour intensity is bigger during big and heavy the use, and because of tankage can't strengthen, radiating condition is poor, in addition can't attached again distribution box, use safety inadequately, and cost is huge.

The utility model content

At the problems referred to above, technical problem to be solved in the utility model is providing a kind of easy to use, can realize with the bigger axial force of less input torque output and can play the characteristics of axial location according to the screw thread transmission, by Bevel Gear Drive, screw thread transmission and plane mechanism motion, make the rotatablely moving of crank of input be converted into blade around the rotatablely moving of twisted point, the final realization expanded pincers to the shearing of reinforcing bar etc. and universal the cutting of expansion.

The utility model solves above-mentioned technical problem by following technical proposals: a kind of universal cutting expanded pincers, it is characterized in that: the described expansion pincers of cutting comprise two blades, two blades link together by king-bolt, leave bolt hole and chute respectively on two blades, two blades are fixed on the phaselocked loop by described bolt hole, the described expansion pincers of cutting also comprise the threaded casing of inner surface, the middle part of described phaselocked loop is provided with gear, there is steel ball on the top, both sides of gear, steel ball withstands on the casing by spring, described phaselocked loop is made up of three parts: the top conical surface that is positioned at described phaselocked loop top, be positioned at the middle part gear and the bottom convex that is positioned at described phaselocked loop bottom at described phaselocked loop middle part, above-mentioned three parts form a whole, the hole is left at described phaselocked loop center, there is an end of a main shaft to pass the hole that described phaselocked loop center is stayed, the other end of described main shaft is installed in the screw rod, connect countershaft on the described screw rod, be with on the described countershaft on the conical gear, vertical with described conical gear be provided with a crank circle bevel gear, the middle part of described crank circle bevel gear is connected with a crank.

Wherein, the end of described main shaft is provided with convex, and the upper end of described screw rod is provided with the T-shape hole, and described convex is arranged in the T-shape hole of screw rod.

Positive progressive effect of the present utility model is: the utility model provides, and universal cutting expanded pincers and had the following advantages: the utility model can be realized with the bigger axial force of less input torque output according to the screw thread transmission and can play the characteristics of axial location, by Bevel Gear Drive, screw thread transmission and plane mechanism motion, make the rotatablely moving of crank of input be converted into blade, final shearing and the expansion that realizes reinforcing bar etc. around the rotatablely moving of twisted point.The utility model volume is little in addition, can be used for narrow space or inconvenient place operation in pick-up operation, does not need to be connected with outside power, and working head rotatable 360 is spent, and especially is useful in earthquake, caves in, dangerous environment such as explosion.

Description of drawings

Fig. 1 is the structural representation of the utility model blade closure;

Fig. 2 is the structural representation of the utility model blades open.

The specific embodiment

Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.

Fig. 1 is the structural representation of the utility model blade closure, Fig. 2 is the structural representation of the utility model blades open, referring to Fig. 1 and 2, the utility model can be realized with the bigger axial force of less input torque output according to the screw thread transmission and can play the characteristics of axial location, by Bevel Gear Drive, screw thread transmission and plane mechanism motion, make the rotatablely moving of crank of input be converted into blade, final shearing and the expansion that realizes reinforcing bar etc. around the rotatablely moving of twisted point.

Shearing and expanding process are as follows:

Staff shakes crank 1200, produce input torque, torque is through a pair of Bevel Gear Drive that is meshed, pass to conical gear 1000 by crank circle bevel gear 1100, conical gear 1000 can change the direction of torque, to be converted into the torque of conical gear 1000 axially perpendicular to the torque of the crank circle bevel gear 1100 of axis direction, and by bigger gearratio is set, can make manual input expand as the big torque of conical gear 1000 for the little torque of crank 1200, driving countershaft 900 by conical gear 1000 rotates, and then the rotation of the screw rod 800 that links to each other with countershaft 900 of drive, screw rod 800 rotates in the threaded casing 700 of inner surface, form worm drive, little torque can be converted into bigger axial thrust, move vertically to promote main shaft 600, main shaft 600 will drive king-bolt 200 motion vertically together wherein, king-bolt 200 is by corresponding hole, position on main shaft 600 and the blade 100, main shaft 600 and blade 1 are coupled together, in main shaft 600 and king-bolt wherein 200 motion vertically together, king-bolt 200 will move in the chute 300 on two blades, and (chute 300 is two holes on the sheet, open on the line at king-bolt 200 and stove bolt 201 centers, drive two blades and rotate, finally realize the shearing and the extensional motion of blade 100 around the stove bolt 201 that is fixed on the phaselocked loop 500.

Can change the direction of axial force by the rotation direction that changes crank 1200, and then realize the different rotary direction of blade 100, reach the various objectives of shearing with expansion.When shaking crank 1200 clockwise (from the right side), conical gear 1000 will clockwise rotate (seeing from below) with screw rod 800, screw rod 800 will rise with respect to casing 700 with main shaft 600, and then promotion king-bolt 200 moves upward, blade 100 is outwards rotated around the stove bolt 201 that is fixed on the phaselocked loop 500, realize the function of expansion.Otherwise, when shaking crank 1200 counterclockwise, will make main shaft 600 and king-bolt 200 move downward, blade 100 is inwardly rotated around the stove bolt 201 that is fixed on the phaselocked loop 500, realize the function of shearing.

Shearing and during expansion, conical gear 1000 with crank circle bevel gear 1100, be fixed on crank 1200, Positioning Gear 1300 on the crank circle bevel gear 1100, along with countershaft 900, screw rod 800, main shaft 600 motion vertically together.Wherein, conical gear 1000 is fixed on the countershaft 900, Positioning Gear 1300 then is enclosed within on the countershaft 900, its effect is to clamp crank circle bevel gear 1100 with conical gear 1000, crank circle bevel gear 1100 can be moved vertically with it, remain engagement and do not break away from.Because the rotation direction of Positioning Gear 1300 and the direction of rotation of conical gear 1000 are so Positioning Gear 1300 can not be fixed on the countershaft 900.The center of Positioning Gear 1300 is the hole, the end of screwed countershaft 900 passes the hole and matches with nut 1400, utilize the terminal shaft shoulder and the nut 140 of countershaft 900 that Positioning Gear 1300 is located in the axial direction, like this when Positioning Gear 1300 meshes with crank circle bevel gear 1100, both can clamp crank circle bevel gear 1100 with conical gear 1000, can realize again carrying out rightabout rotation, satisfy transmission condition with conical gear 1000.

The cutter head rotation:

Outstanding feature of the present utility model is to realize that to the end 360 degree rotate, and so just can shear materials such as reinforcing bars and expands in different angles.This function mainly realizes that by phaselocked loop 5 course of work is as follows:

Phaselocked loop 500 is made up of three parts: the top conical surface 501, middle part gear 502 and bottom convex 503, and this three part forms a whole, and main shaft 600 passes the hole at its center.Wherein, the top conical surface 501 plays fixedly stove bolt 201, make phaselocked loop 500 can drive stove bolt 201 when rotating and rotate, and then drive blade 100 rotates together.Blade 100 is when rotating, to drive king-bolt 200 and main shaft 600 rotates together, and the convex 601 of the end of main shaft 600 is because of in the T-shape hole 801 that has been enclosed within screw rod 800, be subjected to the axial force of screw rod 800 so can realize main shaft 600, axially move with screw rod 800, and main shaft 600 can not drive screw rod 800 rotation when rotated, does not promptly influence the screw thread transmission on screw rod 800 and the casing 700 and the axial location of screw rod 800.The middle part gear of phaselocked loop 500 contacts with steel ball 400, steel ball 400 is placed in the hole radially on casing 700 tops with spring 401, symmetrical expression is laid two, the profile of tooth of middle part gear 502 is a triangle, steel ball 400 is stuck between two lance tooths, be subjected to pretightning force and red applying of spring 401, staff can be stirred the middle part gear by herein hole on the casing 700 and rotate and stop in place, spring 401 is subjected to force compresses during rotation, steel ball 400 bounces back in the hole in the casing 700, stir when stopping, the pretightning force of spring 401 is fitted the steel ball 400 and the red face of middle part gear 502 once more, the circumferential locations of phaselocked loop 500 is fixed, make it when shearing, the rotation of circumferencial direction can not take place with expansion.The bottom convex of phaselocked loop 500 is stuck in the cannelure of casing 700, make phaselocked loop 500 freely radially to rotate, and axial relative motion does not take place, like this with casing 700, both can make cutter head realize that 360 degree rotate, and have guaranteed normally carrying out of shearing and expansion again.

The utility model can be realized with the bigger axial force of less input torque output according to the screw thread transmission and can play the characteristics of axial location, by Bevel Gear Drive, screw thread transmission and plane mechanism motion, make the rotatablely moving of crank of input be converted into blade, final shearing and the expansion that realizes reinforcing bar etc. around the rotatablely moving of twisted point.The utility model volume is little in addition, can be used for narrow space or inconvenient place operation in pick-up operation, does not need to be connected with outside power, and working head rotatable 360 is spent, and especially is useful in earthquake, caves in, dangerous environment such as explosion.

More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. universal cutting expanded pincers, it is characterized in that: the described expansion pincers of cutting comprise two blades (100), two blades (100) link together by king-bolt (200), leave bolt hole (101) and chute (300) on two blades (100) respectively, two blades (100) are fixed on the phaselocked loop (500) by described bolt hole (101), the described expansion pincers of cutting also comprise the threaded casing of inner surface (700), the middle part of described phaselocked loop (500) is provided with gear, there is steel ball (400) on the top, both sides of gear, steel ball (400) withstands on the casing (700) by spring (401), described phaselocked loop (500) is made up of three parts: the top conical surface (501) that is positioned at described phaselocked loop (500) top, be positioned at the middle part gear (502) at described phaselocked loop (500) middle part and be positioned at the bottom convex (503) of described phaselocked loop (500) bottom, above-mentioned three parts form a whole, the hole is left at described phaselocked loop (500) center, there is an end of a main shaft (600) to pass the hole that described phaselocked loop (500) center is stayed, the other end of described main shaft (600) is installed in the screw rod (800), described screw rod (800) is gone up and is connected countershaft (900), be with on the conical gear (1000) on the described countershaft (900), vertical with described conical gear (1000) be provided with a crank circle bevel gear (1100), the middle part of described crank circle bevel gear (1100) is connected with a crank (1200).

2. universal cutting according to claim 1 expanded pincers, it is characterized in that: the end of described main shaft (600) is provided with convex (601), the upper end of described screw rod (800) is provided with T-shape hole (801), and described convex (601) is arranged in the T-shape hole (801) of screw rod (800).