CN106703721A

CN106703721A - Clamping mechanism

Info

Publication number: CN106703721A
Application number: CN201510792063.XA
Authority: CN
Inventors: 曹超
Original assignee: XUZHOU DUN AN HEAVY INDUSTRY MACHINERY MANUFACTURING Co Ltd
Current assignee: Shanghai Engineering Machinery Co Ltd
Priority date: 2015-11-17
Filing date: 2015-11-17
Publication date: 2017-05-24
Anticipated expiration: 2035-11-17
Also published as: CN106703721B

Abstract

The invention discloses a clamping mechanism. The clamping mechanism is used for exerting a force in the horizontal direction to clamp a columnar casing pipe in the vertical direction and comprises at least two clamping bodies and a clamping oil cylinder with two ends hinged to the clamping bodies through first hinge pins respectively. The clamping mechanism is generally fixed to a base of a casing pipe drilling machine, and the function of clamping the casing pipe is achieved by compressing the clamping oil cylinder. The clamping mechanism is simple and reliable in structure, large in clamping area, large in clamping strength, convenient to maintain and dismount and capable of effectively improving the construction efficiency.

Description

A kind of clamp system

【Technical field】

The present invention relates to a kind of clamp system, more particularly to a kind of double oil cylinder sub-folders on drill machine with casing Tight mechanism.

【Background technology】

Drill machine with casing, is a kind of novel pile work engineering machinery, can plateau, mountain area, hills, seabeach, Constructed under the various complicated geological environments such as rivers,lakes and seas beach, but had drift sand when construction runs into underground, The various complicated geological situations such as solution cavity, rock stratum or sleeve pipe pierce underground it is too deep when, traditional single oil cylinder sleeve pipe Rig pair clamp system can be because clamping the problems such as area is small, dynamics is not enough causes sleeve pipe to glide, to user Made troubles in work progress, influence construction speed, cause unnecessary economic loss.Prior art Secondary clamp system in the case where being frequently used, its defect seems especially prominent.

The Chinese invention patent application the CN103821467th that on May 28th, 2014 announces discloses one Double cylinder clamping mechanisms are planted, in the clamp system, are structure as a whole with the chuck being connected at oil cylinder two ends, Can not open or close up with the change of drill pipe diameter, the circular arc cylinder contact surface of chuck inner side and drilling rod Product is limited.If the clamp system is used for into drill machine with casing, even if chuck inner side is improved as into arc shaped inside Face, cannot also well adapt to the sleeve pipe of various diameters, and replacing is connected with the clamp system of hydraulic jack more The tedious work for influenceing efficiency of construction, it is actually used in, the clamp system also exist clamping dynamics it is uneven, Not clamping situation.Therefore, it is necessary to design a kind of rational in infrastructure, clamping great efforts, practicality are simple Clamp system.

【The content of the invention】

It is simple and reliable for structure it is an object of the invention to provide one kind, clamp area extensively, great efforts are clamped, The clamp system of convenient disassembly is repaired, to improve the efficiency of construction of drill machine with casing.

The purpose of the present invention is achieved through the following technical solutions：A kind of clamp system is provided, for from water Square upwards force clamping vertically place column pipe, the clamp system include at least two clamping bodies And the clamping cylinder that two ends are hinged by the first bearing pin from different clamping bodies respectively, the clamping body and Clamping cylinder is crowded around to form the ring-type grasping part of closing in the horizontal direction, and the clamping body includes logical The second bearing pin is crossed to be hinged the first clamp arm and the second clamp arm being integrated, first clamp arm and Respectively towards draw-in groove is offered in grasping part on second clamp arm, the clamp system also includes being arranged at card Holding board in groove.

Further, the clamp system further includes to be installed on the variable-diameter block on holding board, the change Footpath block has the side wall and the mounting hole of insertion side wall in the horizontal direction of an arc, and the variable-diameter block passes through Bolt in mounting hole is fixedly installed on holding board.

Further, variable-diameter block top is provided with some fins, the fin by clamping body one end to Lower extension is provided with holding section, and the clamping body is provided with edge clipping, and the holding section is blocked edge clipping and can position change The setting height(from bottom) of footpath block.

Further, described sleeve pipe rig has the base of a ring-type, and second bearing pin is fixedly installed in On base.

Further, the clamp system also includes the cover plate being installed on clamping body, the clamping cylinder Including cylinder body and can opposing cylinder back and forth movement piston rod, the range of movement of the piston rod is without departing from lid Plate view field in the horizontal direction.

Further, cover plate includes the middle projection for projecting upwards and positioned at the Gai Yuan of raised both sides, institute Raised bottom notch is stated to accommodate the end of the first bearing pin, cover plate is fixed on clamping body by screw, institute Screw is stated to be installed on same side cover edge.

Further, described two clamping bodies are symmetrical set, and the clamp system includes a pair along opposite The clamping cylinder that direction is placed.

Disclosed herein clamp system have it is simple and reliable for structure, clamp that area is wide, clamping great efforts The advantages of, and maintenance convenient disassembly, efficiency of construction is improve indirectly.

【Brief description of the drawings】

Fig. 1 is the side view for meeting clamp system of the invention.

Fig. 2 is the top view of clamp system shown in Fig. 1.

Fig. 3 is the optical cable of clamp system shown in Fig. 2.

Fig. 4 is the front view of variable-diameter block in clamp system shown in Fig. 2.

Fig. 5 is the side view of variable-diameter block in clamp system shown in Fig. 2.

Fig. 6 is the top view of variable-diameter block first embodiment shown in Fig. 2.

Fig. 7 is the top view of variable-diameter block second embodiment shown in Fig. 2.

【Specific embodiment】

As shown in Figures 1 to 7, meet a kind of clamp system 100 of the invention to can be used to clamp stake work work Column or tubular equipment in journey machinery, for by column or tube help it is straight after squeeze into ground end or from underground Extract.In preferable examples application of clamp system 100 and drill machine with casing in the present embodiment, as sub-folder Clamping apparatus grip sleeve (not shown).It is perpendicular that the clamp system 100 is used for upper force clamping from horizontal direction The straight sleeve pipe placed, the clamp system 100 includes two arc-shaped clamping bodies 1 being oppositely arranged, and The clamping cylinder 2 being connected with clamping body 1 by the first bearing pin 4.

In the present embodiment, the clamp system 100 includes two clamping bodies 1 and two clamping cylinders 2, Property connection, clamping body 1 and clamping cylinder are cut with scissors from different clamping bodies 1 respectively in the two ends of each clamping cylinder 2 2 grasping parts 10 substantially circlewise for surrounding a closing in the horizontal direction, compression clamping cylinder 2 can Reduce grasping part 10 so that clamping foregoing sleeve pipe.The clamping body 1 is by the He of the first clamp arm 11 Second clamp arm 12 is hinged to be formed by the second bearing pin 5, and first clamp arm 11 and second is pressed from both sides Tight arm 12 can be rotated rotating around the second bearing pin 5, and the first clamp arm 11 and the second clamp arm 12 install second The other end of bearing pin 5 is provided with the through hole 101 for installing the first bearing pin 4.The two ends of the clamping cylinder 2 point Not being provided with can accommodate the mounting hole 22 that the first bearing pin 4 is passed through, and described at least one end of first bearing pin 4 is fixed In on clamping body 1, therefore clamping cylinder 2 can turn around the first bearing pin 4 with clamping body 1 in scope of design It is dynamic.Preferably, meet the present embodiment drill machine with casing have a ring-type base (not shown) and one with The relatively-stationary main clamping device (not shown) of the base, the lower end of second bearing pin 5 can fixedly mount Ensureing the concentricity of the inner side of clamping body 1 and sleeve pipe on the base.

The clamp system 100 also includes being installed on the variable-diameter block 7 of the inner side of clamping body 1 and is connected to change Holding board 6 between footpath block 7 and clamping body 1, the holding board 6 is substantially rectangular in the present embodiment Body, is fixed on and is opened towards grasping part 10 in the first clamp arm 11 and the second clamp arm 1 on clamping body 1 If draw-in groove 16 in, the variable-diameter block 7 has the side wall 74 of an arc and insertion side in the horizontal direction The mounting hole 70 of wall 74, the variable-diameter block 7 is fixed by the bolt (non-label) in mounting hole 70 It is installed on holding board 6.Preferably, the mounting hole 70 has the larger entrance (non-label) in aperture To accommodate bolt entrance, and passed through with an aperture 73 screw rod position to allow bolt of less outlet. After variable-diameter block 7 is locked on holding board 6, holding board 6 cannot be extracted from draw-in groove 16 again, be Realize the purpose, the holding board 6 and draw-in groove 16 section in the horizontal direction is substantially trapezoidal shape or wedge shape.

When the diameter of sleeve pipe changes according to job site, the reducing being installed on holding board 6 is directly changed Block 7 to suitable inner diameter model.As shown in fig. 6, the madial wall 74a of variable-diameter block 7a is in horizontal plane On be projected as radius be R1 circular arc；As shown in fig. 7, the madial wall 74b of variable-diameter block 7b is in water The circular arc that radius is R2 of being projected as in plane.Wherein, R1 is less than R2, therefore variable-diameter block 7b than becoming Footpath block 7a is more suitable for using on the sleeve pipe of thicker diameter, to reach the laminating effect for more matching so that folder The clamping of tight mechanism 100 is more firm.Preferably, in the present embodiment, the top of the variable-diameter block 7 is provided with Some fins 71, the fin 71 is extended downwardly by one end of clamping body 1 and is provided with holding section 72, described Clamping body 1 is provided with edge clipping 17, and the holding section 72 is blocked edge clipping 17 and can position the installation of variable-diameter block 7 Highly.

The clamping cylinder 2 include cylinder body 20 and can the back and forth movement of opposing cylinder 20 piston rod 21, by More severe in the use environment of drill machine with casing, generally drop the sandstone soil on piston rod 21 from top The sealing of cylinder body 20 can be made to substantially reduce into therefore meeting clamp system of the invention 100 Deng impurity Also include the cover plate 3 on clamping body 1, the cover plate 3 includes the middle projection 34 for projecting upwards And positioned at the lid edge 33 of raised both sides, raised 34 bottom notch is higher by with accommodating the first bearing pin 4 The upper part of clamping body 1., the length of cover plate 3 exposes the length of cylinder body 20 more than piston rod 21, Therefore, view field of the range of movement of the piston rod 21 without departing from cover plate 3 in the horizontal direction.Institute State cover plate 3 and be provided with pilot hole 31, be fixedly installed in for cover plate 3 after pilot hole 31 by screw 32 On mounting hole 11 on clamping body 1, install for convenience, the screw 32 is installed on same side cover edge On 33.When clamping cylinder 2 stretches, the cover plate 3 covers piston rod 21 from top all the time, with play compared with Good protective effect, extends the service life of clamping cylinder 2.

It is easy for installation because many places employ the connected mode of bearing pin in the present embodiment, and due to each change Footpath block 7 can be freely movable with the first clamp arm 11 or the second clamp arm 12, therefore in compression clamping cylinder While 2, the blessing power distribution between clamp system 100 and sleeve pipe (not shown) is more uniform reliable. In sum, clamp system of the invention 100 is met than prior art, with long service life, behaviour Make simple and reliable, the easy to maintenance and wide advantage of use scope.

Claims

1. a kind of clamp system, the column pipe placed vertically, institute are clamped for upper force from horizontal direction Clamp system is stated to be cut with scissors from different clamping bodies by the first bearing pin respectively including at least two clamping bodies and two ends The clamping cylinder for connecing, the clamping body and clamping cylinder crowd around to form the ring of closing in the horizontal direction Shape grasping part, it is characterised in that：The clamping body includes being hinged what is be integrated by the second bearing pin First clamp arm and the second clamp arm, respectively towards grasping part on first clamp arm and the second clamp arm Draw-in groove is inside offered, the clamp system also includes the holding board being arranged in draw-in groove.

2. clamp system according to claim 1, it is characterised in that：Further include to be installed on fixing Variable-diameter block on plate, the variable-diameter block has the side wall and the peace of insertion side wall in the horizontal direction of an arc Dress hole, the variable-diameter block is fixedly installed on holding board by the bolt in mounting hole.

3. clamp system according to claim 2, it is characterised in that：If the variable-diameter block top is provided with Dry fin, the fin is extended downwardly by one end of clamping body and is provided with holding section, and the clamping body is provided with Block edge clipping and can position the setting height(from bottom) of variable-diameter block in edge clipping, the holding section.

4. clamp system according to claim 1, it is characterised in that：Described sleeve pipe rig has a ring The base of shape, second bearing pin is fixedly installed on base.

5. the clamp system according to Claims 1-4 any one, it is characterised in that：Also include peace Loaded on the cover plate on clamping body, the clamping cylinder include cylinder body and can opposing cylinder back and forth movement piston Bar, the view field of the range of movement of the piston rod without departing from cover plate in the horizontal direction.

6. clamp system according to claim 5, it is characterised in that：The cover plate includes middle upward Prominent projection and positioned at the Gai Yuan of raised both sides, the raised bottom notch is accommodating the first bearing pin End, cover plate is fixed on clamping body by screw, and the screw is installed on same side cover edge.

7. clamp system according to claim 1, it is characterised in that：Described two clamping bodies are in symmetrical Set, the clamp system includes a pair clamping cylinders placed in opposite direction.