CN212359667U - Novel hydraulic bottom tongs - Google Patents
Novel hydraulic bottom tongs Download PDFInfo
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- CN212359667U CN212359667U CN202020702944.4U CN202020702944U CN212359667U CN 212359667 U CN212359667 U CN 212359667U CN 202020702944 U CN202020702944 U CN 202020702944U CN 212359667 U CN212359667 U CN 212359667U
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Abstract
A novel hydraulic bottom clamp comprises a main body of a holding claw, a pair of holding claws, a pair of sticking claws and a pair of grasping oil cylinders; the middle part of the right end of the holding claw main body is fixedly connected with a pair of limiting blocks which are symmetrically distributed in the front and back direction, the middle part of one side of each limiting block is provided with a pair of sliding grooves, and the shapes and the sizes of the sliding grooves are matched with those of the mast slideway; the left side of the middle part of the holding claw main body is fixedly connected with a positioning block, and the left end of the positioning block is fixedly connected with a positioning plate; the middle parts of the pair of holding claws are hinged with the front end and the rear end of the holding claw main body respectively, the left ends of the pair of holding claws are hinged with the middle parts of the pair of sticking claws respectively, the right ends of the pair of holding claws are hinged with the piston rod ends of the pair of grasping oil cylinders respectively, and the cylinder barrels of the pair of grasping oil cylinders are hinged with the front side and the rear side of the middle part of the holding claw main body respectively. This bottom tong can realize carrying out stable centre gripping to the drilling rod bottom conveniently, can be convenient for the drilling rod go into the adjustment of rock angle, also can guarantee the stability of guaranteeing the drilling rod at the in-process that whole car removed.
Description
Technical Field
The utility model belongs to the technical field of building and bridge construction equipment specifically, concretely relates to novel hydraulic bottom tongs.
Background
Because the radial rotation allowance of down-the-hole hammer drilling rod is great, the drilling rod can be more serious if its swing of effectual centre gripping is not had in the bottom when mentioning, and then can influence operating personnel and carry out the drilling rod in different apertures and go into the in good time adjustment of rock angle, simultaneously, also can cause the influence to the security of organism. In addition, in the whole vehicle moving process of the down-the-hole hammer, the swing of the bottom of the drill rod can be also more severe if the bottom of the drill rod is not effectively clamped, so that the operation of an operator can be affected, and the safety of a machine body can be affected.
Disclosure of Invention
To the problem that above-mentioned prior art exists, the utility model provides a novel hydraulic pressure bottom tongs, this bottom tongs can realize carrying out stable centre gripping to the drilling rod bottom conveniently, can be convenient for the drilling rod go into the adjustment of rock angle, simultaneously, also can guarantee the stability of guaranteeing the drilling rod at the in-process that whole car removed, can be favorable to improving the security of organism.
In order to achieve the purpose, the utility model provides a novel hydraulic bottom tongs, which comprises a main body of a holding claw, a pair of holding claws, a pair of sticking claws and a pair of grasping oil cylinders;
the middle part of the right end of the holding claw main body is fixedly connected with a pair of limiting blocks which are symmetrically distributed front and back, the middle part of one side of each limiting block is provided with a pair of sliding chutes, and the shapes and the sizes of the sliding chutes are matched with those of the mast slideway; the left side of the middle of the holding claw main body is fixedly connected with a positioning block, and the left end of the positioning block is fixedly connected with a positioning plate;
the middle parts of the pair of holding claws are hinged with the front end and the rear end of the holding claw main body respectively, the left ends of the pair of holding claws are hinged with the middle parts of the pair of sticking claws respectively, the right ends of the pair of holding claws are hinged with the piston rod ends of the pair of grasping oil cylinders respectively, and the cylinder barrels of the pair of grasping oil cylinders are hinged with the front side and the rear side of the middle part of the holding claw main body respectively.
Furthermore, in order to conveniently adjust the clamping range to meet the clamping requirements of different drill rods in model sizes, the middle of the holding claw main body is provided with a transversely extending guide groove, and an opening of the guide groove is positioned on the left end face of the middle of the holding claw main body; the positioning block is inserted into the guide groove in a sliding manner, and the size of the positioning block is larger than that of the guide groove; the part of the holding claw main body in the guide groove is provided with a plurality of connecting holes A penetrating through the thickness direction of the holding claw main body; the positioning block is provided with a plurality of connecting holes B corresponding to the connecting holes A, and the positioning block is fixedly connected with the guide groove through pin shafts inserted into the corresponding connecting holes A and the corresponding connecting holes B.
Furthermore, in order to realize the switching between the clamping state and the loosening state of the drill rod more quickly in the process of grasping the expansion of the oil cylinder, the middle parts of the holding claws are of a bending structure, the pair of holding claws are hinged with the front end and the rear end of the holding claw main body through bending parts of the holding claws, and the notches of the pair of holding claws are arranged back to back.
Furthermore, in order to reliably clamp one side of the drill rod far away from the holding claw main body, the pasting claws are V-shaped, the pasting claws are hinged with the left ends of the holding claws through corners of the pasting claws, and notches of the pasting claws are oppositely arranged.
Further, in order to enable a space enclosed by the holding claw main body, the pair of holding claws and the pair of attaching claws to be matched with the shape of the drill rod so as to form more stable clamping on the drill rod, the front end and the rear end of the holding claw main body symmetrically extend towards the front of the left side and the rear of the left side of the holding claw main body from the middle part of the holding claw main body.
The utility model discloses in, the middle part of a pair of embracing the claw is articulated with the front and back end of embracing the claw main part, and its outside is articulated with the piston rod end that articulates a pair of promptly hydro-cylinder at embracing claw main part middle part, like this, just can make a pair of left end of embracing the claw be close to each other through stretching out of a pair of promptly hydro-cylinder of drive simultaneously, and then can make to articulate a pair of claw of pasting of embracing the claw left end and be close to each other to be convenient for carry out reliable centre gripping to the drilling rod that gets into the centre. The positioning plate connected with the left end of the positioning block can be matched with the pair of sticking claws to clamp the drill rod. In addition, the pair of grasping oil cylinders can be driven asynchronously to realize small-distance deviation of the drill rod, so that the application of actual working conditions can be facilitated. The clamping force is provided by grasping the oil cylinder, so that stable supply of the clamping force can be ensured, and the stability of clamping is further ensured. The drill rod can be conveniently assembled on the main machine mast through the arrangement of the pair of sliding grooves, and then a specific distance can be kept between the tightly held drill rod and the main machine mast. This back-up wrench can realize carrying out stable centre gripping to the drilling rod bottom conveniently, can be convenient for the drilling rod go into the adjustment of rock angle, simultaneously, also can guarantee the stability of guaranteeing the drilling rod at the in-process that whole car removed, can be favorable to improving the security of organism.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is an assembly schematic of the present invention.
In the figure: 1. the drilling rod clamping device comprises a sticking claw, 2, a holding claw, 3, a grasping oil cylinder, 4, a holding claw main body, 5, a positioning block, 6, a limiting block, 7, a sliding groove, 8, a guide groove, 9, a positioning plate, 10, connecting holes A and 11, connecting holes B and 12 and a drilling rod.
Detailed Description
The present invention will be further explained below.
As shown in fig. 1 and 2, a novel hydraulic bottom wrench comprises a main body 4, a pair of holding claws 2, a pair of sticking claws 1 and a pair of grasping cylinders 3;
the middle part of the right end of the embracing claw body 4 is fixedly connected with a pair of limiting blocks 6 which are symmetrically distributed front and back, wherein the right end surface of the embracing claw body 4 is of a plane structure extending front and back, the middle part of one side of the pair of limiting blocks 6 is provided with a pair of sliding chutes 7, and the shapes and the sizes of the pair of sliding chutes 7 are matched with those of the mast slideway; the left side of the middle part of the holding claw body 4 is fixedly connected with a positioning block 5, and the left end of the positioning block 5 is fixedly connected with a positioning plate 9;
the middle parts of the pair of holding claws 2 are hinged with the front end and the rear end of the holding claw main body 4 respectively, the front end and the rear end of the holding claw main body 4 symmetrically extend towards the front side and the rear side of the left side of the holding claw main body 4 from the middle parts of the holding claw main body, preferably, the middle parts of the holding claw main body 4 can be rectangular, the front end and the rear end of the holding claw main body are respectively provided with oblique extending parts, and the oblique extending parts of the front end and the rear end extend towards the left side and towards the direction far away from the middle part of the holding claw main body. The left ends of the pair of holding claws 2 are respectively hinged with the middle parts of the pair of sticking claws 1, the right ends of the pair of holding claws 2 are respectively hinged with the piston rod ends of the pair of grasping oil cylinders 3, and the cylinder barrels of the pair of grasping oil cylinders 3 are respectively hinged with the front side and the rear side of the middle part of the holding claw main body 4.
The middle part of the holding claw main body 4 is provided with a transversely extending guide groove 8, and the opening of the guide groove 8 is positioned on the left end face of the middle part of the holding claw main body 4; the positioning block 5 is slidably inserted into the guide groove 8, and the size of the positioning plate 9 is larger than that of the guide groove 8; the holding claw body 4 is provided with a plurality of connecting holes A10 penetrating through the thickness direction of the holding claw body at the part of the guide groove 8; the positioning block 5 is provided with a plurality of connecting holes B11 corresponding to the connecting holes A10, and the positioning block 5 is fixedly connected with the guide groove 8 through pin shafts inserted into the corresponding connecting holes A and B.
The middle of the holding claw 2 is of a bending structure, the pair of holding claws 2 are hinged with the front end and the rear end of the holding claw main body 4 through bending parts of the holding claws, and the notches of the pair of holding claws 2 are arranged back to back. Preferably, the bending angle of the holding claw 2 is an obtuse angle.
Paste claw 1 and be the V font, a pair of claw 1 all is embraced the left end of claw 2 with a pair of through its corner and is articulated, and the notch of a pair of claw 1 sets up relatively. Preferably, a rubber pad is fixedly connected to the inner surface of the sticking claw 1.
When the clamping device is used, the pair of grasping oil cylinders 3 are in a contraction state, the left ends of the pair of holding claws 2 are far away from each other, the pair of attaching claws 1 are far away from each other, a drill rod 12 to be clamped is wrapped at the center of a clamping space of the clamping device through an opening between the pair of attaching claws 1, the distance of the positioning block relative to the holding claw main body 4 is changed by adjusting the depth of the positioning block 5 inserted into the guide groove 8, piston rods of the pair of grasping oil cylinders 3 are synchronously driven to extend out, the left ends of the pair of holding claws 2 can be driven to be close to each other, the pair of attaching claws 1 are close to each other, the front part and the rear part of the left side of the drill rod 12 are held tightly through notches of the pair of attaching claws 1, meanwhile, the positioning plate 9 can be used for supporting.
Claims (5)
1. A novel hydraulic bottom clamp comprises a clamping claw main body (4), and is characterized by further comprising a pair of clamping claws (2), a pair of sticking claws (1) and a pair of grasping oil cylinders (3);
the middle part of the right end of the holding claw main body (4) is fixedly connected with a pair of limiting blocks (6) which are symmetrically distributed front and back, the middle part of one side of each limiting block (6) is provided with a pair of sliding chutes (7), and the shapes and the sizes of the sliding chutes (7) are matched with those of the mast slideway; the left side of the middle part of the holding claw main body (4) is fixedly connected with a positioning block (5), and the left end of the positioning block (5) is fixedly connected with a positioning plate (9);
the middle parts of the pair of holding claws (2) are hinged with the front end and the rear end of the holding claw main body (4) respectively, the left ends of the pair of holding claws (2) are hinged with the middle parts of the pair of attaching claws (1) respectively, the right ends of the pair of holding claws (2) are hinged with the piston rod ends of the pair of grasping oil cylinders (3) respectively, and the cylinder barrels of the pair of grasping oil cylinders (3) are hinged with the front side and the rear side of the middle part of the holding claw main body (4) respectively.
2. The novel hydraulic bottom tongs are characterized in that the middle of the holding jaw main body (4) is provided with a transversely extending guide groove (8), and the opening of the guide groove (8) is positioned on the left end surface of the middle of the holding jaw main body (4); the positioning block (5) is slidably inserted into the guide groove (8), and the size of the positioning plate (9) is larger than that of the guide groove (8); the part of the holding claw main body (4) in the guide groove (8) is provided with a plurality of connecting holes A (10) penetrating through the thickness direction of the holding claw main body; the positioning block (5) is provided with a plurality of connecting holes B (11) corresponding to the connecting holes A (10), and the positioning block (5) is fixedly connected with the guide groove (8) through pin shafts inserted into the corresponding connecting holes A (10) and the corresponding connecting holes B (11).
3. The novel hydraulic bottom tongs as claimed in claim 1 or 2, characterized in that the middle of the clasping claws (2) is of a bent structure, the pair of clasping claws (2) are hinged with the front end and the rear end of the clasping claw main body (4) through the bent parts of the clasping claws, and the notches of the pair of clasping claws (2) are arranged in a back-to-back manner.
4. The novel hydraulic bottom tongs as claimed in claim 3, characterized in that the pasting claws (1) are V-shaped, the left ends of the pair of holding claws (2) are hinged to the pair of pasting claws (1) through the corners of the pasting claws, and the notches of the pair of pasting claws (1) are oppositely arranged.
5. A new hydraulic bottom tong according to claim 4, characterized in that the front and rear ends of the holding-jaw main body (4) extend from its middle part symmetrically to the front and rear left sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020702944.4U CN212359667U (en) | 2020-04-30 | 2020-04-30 | Novel hydraulic bottom tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020702944.4U CN212359667U (en) | 2020-04-30 | 2020-04-30 | Novel hydraulic bottom tongs |
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| Publication Number | Publication Date |
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| CN212359667U true CN212359667U (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020702944.4U Active CN212359667U (en) | 2020-04-30 | 2020-04-30 | Novel hydraulic bottom tongs |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685145A (en) * | 2021-08-27 | 2021-11-23 | 中国煤炭科工集团太原研究院有限公司 | Clamping rod positioning device and jacking device |
| CN113756733A (en) * | 2021-08-27 | 2021-12-07 | 中国煤炭科工集团太原研究院有限公司 | Clamping rod top connecting device for drill stand and drill stand |
-
2020
- 2020-04-30 CN CN202020702944.4U patent/CN212359667U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685145A (en) * | 2021-08-27 | 2021-11-23 | 中国煤炭科工集团太原研究院有限公司 | Clamping rod positioning device and jacking device |
| CN113756733A (en) * | 2021-08-27 | 2021-12-07 | 中国煤炭科工集团太原研究院有限公司 | Clamping rod top connecting device for drill stand and drill stand |
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