CN2511636Y

CN2511636Y - Chain clip device

Info

Publication number: CN2511636Y
Application number: CN 01277162
Authority: CN
Inventors: 阮根富; 吕振奎; 江光彪
Original assignee: Baoshan Iron and Steel Co Ltd
Current assignee: Baoshan Iron and Steel Co Ltd
Priority date: 2001-12-28
Filing date: 2001-12-28
Publication date: 2002-09-18
Anticipated expiration: 2011-12-28

Abstract

The utility model relates to a chain clip device which solves the problems of disassembly and replacement of a chain, and comprises a left linkage and a right linkage, a left claw bar and a right claw bar, a thread bar, a beam, a lug nut and ratchet mechanism, wherein the thread bar is fixed at the middle of the beam; the lug nut is arranged at the upper end of the thread bar; one end of the left linkage and one end of the right linkage are respectively and movably connected with the lugs at the two sides of the lug nut, the other end of the left linkage and the other end of the right linkage are respectively and movably connected with the upper end of the left claw bar and the upper end of the right claw bar; the left claw bar and the right claw bar are respectively and movably connected with the beam at the two sides of the thread bar, the ratchet mechanism is arranged on the thread bar; the ratchet mechanism comprises a main body, a pawl, a ratchet, a spring and an adjustable lever, wherein the main body is arranged at the middle of the thread bar, the ratchet is fixed on the thread bar, one end of the pawl is pressed against the ratchet, the spring is arranged on a pawl rod. The ratchet can drive the thread bar to rotate to make the nut move up and down, the nut can pull the linking rod to move up and down, the other ends of the linkages are fixed on the claw rod which is pushed to move horizontally; therefore, the round claw of the claw rod can tightly clamp the chain. The utility model has the advantages of simple structure, easy operation, quickness and so forth.

Description

A kind of chain binding clasp

Technical field

The utility model relates to a kind of chain binding clasp.

Background technology

Delivery chain in use, because work under bad environment, the bearing failure that has, chain rivet, chain plate hole undue wear cause and knock, make the equipment operation difficulty bring great threat for the conveyor line ordinary production, and the wear damage of chain rivet, chain plate hole, bearing occurs on the multistage different parts on a chain sometimes, cause and change two, three chain rivets and will change section two, three times, repeat the pull-up counterweight, strain chain, increased labor intensity greatly with cucurbit.One eight people overhauls group and can only change two chain rivets or carrier bar at 8 hours at most in the periodical repair, do not catch up with at all and always reach more than 1,000 meter and certain chain link sometimes and have and damage the rhythm that presses for replacing, the result makes spare part new product and rehabilitation expense high no matter be what to damage can only sectionally all be upgraded.

Summary of the invention

The purpose of this utility model is to provide a kind of simple in structure, easy to use, binding clasp of chain rivet carrier bar replacing efficiently.

For achieving the above object, the utility model comprises left and right trace, left and right claw bar, screw mandrel, crossbeam, band ear screw, ratchet device; Described screw mandrel is fixed in crossbeam central authorities; Described band ear screw is arranged at the screw mandrel upper end, and left and right trace one end flexibly connects with the ear piece of being with ear screw both sides respectively; The other end flexibly connects with left and right claw bar upper end respectively; Left and right claw bar is movably connected on respectively on the crossbeam of screw mandrel both sides, and ratchet device is arranged on the screw mandrel.

Described ratchet device comprises body, is arranged at ratchet, ratchet, spring and tommy bar in the chamber body; Described body is sheathed in the middle of the screw mandrel, and ratchet is fixed on the screw mandrel, and the ratchet head and the ratchet of ratchet one end offset, and the other end stretches out originally external; Spring housing is located on one's body the pawl bar, is positioned at the ratchet head rear portion, and the other end and inner body wall offset, and tommy bar is inserted on the body.The working face of ratchet compresses ratchet all the time during work under the effect of spring, though spring weight, the oblique cambered surface of ratchet on ratchet also be skid out-of-run.

The rotation of screw mandrel makes the oscilaltion of screw energy, and trace works to transmit pulling force and thrust.When screw mandrel dextrorotation moves down screw, the screw ear by bearing pin pulling trace down, and the other end of trace is fixed on the claw bar, height can not change, can only spur the claw bar side travel, thereby making two claw bar tops is that shrink in the axle center with the crossbeam pin-and-hole respectively, thereby bottom circle claw portion is that the center is opened round pawl is outwards unclamped with the crossbeam pin-and-hole.When screw mandrel is left-handed when making screw up mobile, the screw ear makes trace toward rising by bearing pin, and the other end of trace is fixed on the claw bar, short transverse can not change, can only promote the outside side travel of claw bar, thereby making two claw bar tops is that open in the axle center with the crossbeam pin-and-hole respectively, thereby bottom circle claw portion is that the center contraction reaches the clamping of round pawl to chain with the crossbeam pin-and-hole.

As further improvement of the utility model, described ratchet outer end is provided with projection for the circle cap, has the detent that matches with circle cap projection on the body.

Described left and right claw bar lower end claw is a circular arc.

Described crossbeam two ends have the groove that inserts for left and right claw bar.

Have the adjusting pin-and-hole on the described left and right trace.

Have the adjusting pin-and-hole on the described left and right claw bar, also can use any a pair of according to the load size that clamps with the high and low position of adjusting crossbeam and claw bar circle claw portion.

Have the adjusting pin-and-hole on the described crossbeam, thereby can use corresponding pin-and-hole that two claw bars are effectively located apart from length according to the actual needs of chain pitch.

Advantage of the present utility model is, has avoided weak points such as original dismounting and change complex labour intensity height.Since the horizontal center of binding clasp when clamping work all the time with the chain central lines, the carrier bar of replacing place can not be distorted, very laborsaving in dismounting, installation process, two people just can work, speed is fast, the raising work efficiency reaches six times more than; Chain rivet, carrier bar that long chain is needed to change different sections more can show the convenient of it, the fast speed distinctive feature.Owing to be by the rigid transmission of screw mandrel screw, the safety hazard that the circle claw portion may skid off when work can not take place.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is an A-A sectional structure scheme drawing of the present utility model.

Fig. 3 is a B-B sectional structure scheme drawing of the present utility model.

Fig. 4 is the utility model control process scheme drawing.

Fig. 5 is another scheme drawing of the utility model control process.

Fig. 6 is a view of an embodiment of the present utility model.

Fig. 7 is another view of an embodiment of the present utility model.

The specific embodiment

As Fig. 1, Fig. 2, shown in Figure 3, the utility model comprises left trace 1, right trace 4, left claw bar 12, right claw bar 8, screw mandrel 2, crossbeam 7, band ear screw 3, ratchet device 5; Described screw mandrel 2 is that standard dextrorotatory form cooperates formation one sleeve screw rod pair with screw 3, is arranged in crossbeam 7 centre holes; Described band ear screw 3 is arranged at screw mandrel 2 upper ends, and left and

right trace

1,4 one ends flexibly connect with the ear piece 31 of being with ear screw 3 both sides respectively; The other end flexibly connects with left and

right claw bar

12,8 upper ends respectively; Left and

right claw bar

12,8 is movably connected on respectively on the crossbeam 7 of screw mandrel 2 both sides, and regulating mechanism 5 is arranged on the screw mandrel 2; Described crossbeam 7 two ends have the groove 72 of regulating pin-and-hole 71 and inserting for left and right claw bar, it not only carries out centralized positioning to screw mandrel 2, and work the time bearing screw mandrel 2 to it pressure and claw bar to its pulling force, two claw bars distance is positioned after inserting bearing pin according to the actual needs of the chain chain pitch pin-and-hole by diverse location.

Have on the described left and

right trace

1,4 and regulate pin-and-hole 101,401,12,8 have adjusting pin-and-

hole

121,81 on the described left and right claw bar, have on the described crossbeam 7 and regulate pin-and-hole 71.

This ratchet device comprises body 51, is arranged at ratchet 54, ratchet 52, spring 55 and tommy bar 13 in body 51 inner chambers; Described body 51 is sheathed in the middle of the screw mandrel 2, and ratchet 52 is connected with screw mandrel 2 shafts by key, and the ratchet head and the ratchet 52 of ratchet 54 1 ends offset, and the other end stretches out outside the body 51; Spring 55 is sheathed on ratchet 54 shafts, is positioned at the ratchet head rear portion, and the other end and body 51 inwalls offset, and tommy bar 13 is inserted on the screw 53 of body 51.

Described left and

right claw bar

12,8 lower end claws 11 are circular arc.

Described ratchet 54 outer ends are provided with projection 56 for the circle hat, have the detent 511 that matches with circle cap projection 56 on the body 51, as shown in Figure 3.

Pull tommy bar 13 back and forth, ratchets 52 in the body 51 drive the left-handed or dextrorotation of screw mandrel 2 and make that screw is upper and lower to be moved, thereby making two claw bars, 12,8 tops by

trace

1,4 is that the axle center is opened or shunk with the crossbeam pin-and-hole respectively, bottom circle claw portion 11 can be that the center swings with the crossbeam pin-and-hole also, thereby reaches the purpose that 11 pairs of chains of round pawl clamp and unclamp.

Binding clasp ratchet 54 driving surfaces are put into hook tooth 52 left, as shown in Figure 4, screw on tommy bar 13, the left and right tommy bar 13 of pulling back and forth, when tommy bar 13 was pulled to the right, body 51 drives screw mandrel 2 right-hand rotations (screw mandrel 2 is the standard right-hand screw thread) by ratchet 54, ratchet 52 descended band ear screw 3, spurs two

traces

1,4 distance on two claw bars, 12,8 tops is dwindled, lower end circle claw 11 is flared to and is enough to put into till chain two rollers, sees Fig. 6.(when tommy bar 13 was pulled left, ratchet 54 screw mandrel 2 that skids on ratchet 52 was failure to actuate).

Then, binding clasp is put into the chain of need changing, with ratchet 54 oppositely just driving surface put into hook tooth 52 to the right, shown in Figure 5.The left and right again tommy bar 13 of pulling back and forth, when tommy bar 13 is pulled left, body 51 drives ratchet 52, screw mandrel 2 left-hand rotations by ratchet 54, and band ear screw 3 is risen, and promotes two

traces

1,4, along with

trace

1,4 straight lines are vertical to screw mandrel 2 line of centerss gradually, top two

claw bars

12,8 distance continues to increase, and to make shaft bottom two circle claws 11 be that inwardly constantly shrink at the center with the crossbeam pin-and-hole, and the chain of changing up to need 16 lifts, bearing pin and carrier bar have enough loosening till, see Fig. 7.(when tommy bar 13 was pulled to the right, ratchet 54 skidded and does not drive ratchet 52 rotations, and at this moment screw mandrel 2 is failure to actuate)

Be replaceable chain rivet, carrier bar, roller or bearing now.After replacing finishes, again ratchet 54 is pulled out from ratchet 52 teeth, turnback, as shown in Figure 4, be reentered in ratchet 52 teeth, pull tommy bar 13 back and forth, round claw 11 is come up, till taking out binding clasp, at this moment the whole chain strip device under the pulling force of deadweight, time gesture of the latter half and counterweight, stretched tight tightly, whole replacing end-of-job.

According to the requirement of the needed roller pitch of dismounting chain, as dismantle carrier bar and need widen, can adjust the distance of binding clasp two claw bars by pin-and-hole, extract the active pin shaft of crossbeam and trace out, former claw bar hole is aligned crossbeam and the outermost adjustment hole of trace, insert bearing pin, the requirement of the needed roller pitch of carrier bar is dismantled in reaching fully apart from length of two claw bars.

Through nearly 1 year actual proof, the utility model is compared with original technology and has been improved the work efficiency that maintenance is changed, can adapt to the replacing of different sections easily, prolonged the operating cycles that equipment integral is changed, spare part new product and rehabilitation expense have been saved greatly, for steady production contributes.Can be widely used in adopting chain-type conveyer chain, take off the conveyer chain that needs grade separation work behind excellent chain, the goods packing etc., especially narrow and small, the aloft work in work-yard uses that hoist crane is had any problem, labour intensity is big, can use this binding clasp.According to the different pitch of chain and the length of needs, can extend, shorten the size of crossbeam, claw bar and trace.In certain scope, can adapt to requirement by increase adjusting the hole to different chain pitch.

Claims

1. a chain binding clasp is characterized in that, comprises left and right trace, left and right claw bar, screw mandrel, crossbeam, band ear screw, ratchet device; Described screw mandrel is fixed in crossbeam central authorities; Described band ear screw is arranged at the screw mandrel upper end, and left and right trace one end flexibly connects with the ear piece of being with ear screw both sides respectively; The other end flexibly connects with left and right claw bar upper end respectively; Left and right claw bar is movably connected on respectively on the crossbeam of screw mandrel both sides, and ratchet device is arranged on the screw mandrel.

2. a kind of chain binding clasp as claimed in claim 1 is characterized in that, described ratchet device comprises body, is arranged at ratchet, ratchet, spring and tommy bar in the chamber body; Described body is sheathed in the middle of the screw mandrel, and ratchet is fixed on the screw mandrel, and the ratchet head and the ratchet of ratchet one end offset, and the other end stretches out originally external; Spring housing is located on one's body the pawl bar, is positioned at the ratchet head rear portion, and the other end and inner body wall offset, and tommy bar is inserted on the body.

3. a kind of chain binding clasp as claimed in claim 1 is characterized in that, described left and right claw bar lower end claw is a circular arc.

4. as claim 1 or 2 or 3 described a kind of chain binding clasps, it is characterized in that described ratchet outer end is provided with projection for the circle cap, have the detent that matches with circle cap projection on the body.

5. as claim 1 or 2 or 3 described a kind of chain binding clasps, it is characterized in that described crossbeam two ends have the groove that inserts for left and right claw bar.

6. as claim 1 or 2 or 3 described a kind of chain binding clasps, it is characterized in that, have the adjusting pin-and-hole on the described left and right trace.

7. a kind of chain binding clasp as claimed in claim 4 is characterized in that, has the adjusting pin-and-hole on the described left and right trace.

8. as claim 1 or 2 or 3 described a kind of chain binding clasps, it is characterized in that, have the adjusting pin-and-hole on the described left and right claw bar.

9. a kind of chain binding clasp as claimed in claim 4 is characterized in that, has the adjusting pin-and-hole on the described left and right claw bar.

10. as claim 1 or 2 or 3 described a kind of chain binding clasps, it is characterized in that, have the adjusting pin-and-hole on the described crossbeam.