CN214787252U - Casing tongs for drilling - Google Patents
Casing tongs for drilling Download PDFInfo
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- CN214787252U CN214787252U CN202121288315.2U CN202121288315U CN214787252U CN 214787252 U CN214787252 U CN 214787252U CN 202121288315 U CN202121288315 U CN 202121288315U CN 214787252 U CN214787252 U CN 214787252U
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Abstract
The utility model belongs to the technical field of the casing tongs, especially, casing tongs is used in probing. To current casing tongs relatively more crude, heavier, the tooth piece wearability is relatively poor, all be direct rivet on the part, be not convenient for change, and the problem that the tooth piece drops easily, the following scheme is proposed at present, it includes the pincers handle, the one end fixedly connected with rectangular block of pincers handle, the outside of rectangular block is rotated and is installed the fixed block, one side of fixed block is connected with the adapter sleeve, the adapter sleeve internal thread is installed and is pressed from both sides tight head, is connected with the pin on pressing from both sides tight head, is connected with middle link joint on the fixed link joint, is connected with tight chain joint on the middle link joint, is connected with two tight lock axles on the tight chain joint, all is connected with the connecting block on fixed link joint and the middle link joint, the utility model discloses can reduce production technology step, reduce product weight, practiced thrift manufacturing cost, and be convenient for change the tooth piece, simple structure, convenient to use.
Description
Technical Field
The utility model relates to a casing tongs is used in probing belongs to casing tongs technical field.
Background
The casing tongs are also called free tongs of casing, and the casing tongs (free tongs of casing) for drilling are hand tools for screwing and unscrewing casing and other drilling tools in the drilling engineering such as geological core drilling engineering, mineral exploration, engineering geological exploration, coal exploration, water well drilling, hydrogeological drilling and the like.
Most of parts of the same type of casing tongs for drilling on the market are formed by cutting and processing steel plates through a laser cutting machine, a plasma cutting machine or a flame cutting machine, the manufactured products are rough and heavy, the wear resistance of the tooth blocks is poor, the tooth blocks are directly riveted on the parts and cannot be replaced, some tooth blocks are fixed through other modes, the process is complicated, and the tooth blocks are easy to fall off.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the existing casing tongs are relatively rough and heavy, the tooth block has relatively poor wear resistance, and all the teeth are directly riveted on the parts, so that the teeth are not convenient to replace, and the teeth block has the defect of easy falling off, thereby providing the casing tongs for drilling.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a casing tongs for drilling comprises a tongs handle, wherein one end of the tongs handle is fixedly connected with a rectangular block, a fixed block is rotatably installed on the outer side of the rectangular block, one side of the fixed block is connected with a connecting sleeve, a clamping head is installed in the inner thread of the connecting sleeve, a pin is connected onto the clamping head, a fixed chain plate is connected onto the clamping head, an intermediate chain plate is connected onto the fixed chain plate, a locking chain plate is connected onto the intermediate chain plate, two locking shafts are connected onto the locking chain plate, connecting blocks are respectively connected onto the fixed chain plate and the intermediate chain plate, a tooth block is respectively connected onto the two connecting blocks, a mounting groove is formed in one side of the fixed block, a rotating shaft is rotatably installed in the mounting groove, a mounting hole is formed in the rectangular block, the inner wall of the mounting hole is fixedly connected with the outer side of the rotating shaft, a first empty groove is formed in the rectangular block, sliding grooves are respectively formed in the top and the bottom of the rectangular block, and first through holes are respectively formed in the inner walls of the two sliding grooves, clamping mechanisms are arranged in the two first through holes, and second empty grooves are formed in the rectangular blocks.
Preferably, the clamping mechanism comprises two clamping columns, a bidirectional lead screw, a worm wheel and a plurality of clamping grooves, the clamping grooves are respectively formed in the inner wall of the top and the inner wall of the bottom of the mounting groove, the outer sides of the two clamping columns are respectively connected with the inner walls of the two sliding grooves in a sliding mode, the clamping columns are matched with the clamping grooves, thread grooves are formed in the two clamping columns, the outer sides of the bidirectional lead screw are connected with the inner walls of the two thread grooves in a threaded mode, and the inner ring of the worm wheel is fixedly connected with the outer sides of the bidirectional lead screw.
Preferably, a second through hole is formed in the inner wall of one side of the second empty groove, the second through hole is communicated with the first empty groove, a worm is rotatably installed in the second through hole, a second bevel gear is fixedly installed at one end of the worm, and the worm is meshed with the worm wheel.
Preferably, a third through hole is formed in the top of the rectangular block and is communicated with the second empty groove, a rotating rod is rotatably mounted in the third through hole, a hand wheel is fixedly mounted at one end of the rotating rod, a first bevel gear is fixedly mounted at the other end of the rotating rod, and the first bevel gear is meshed with the second bevel gear.
Preferably, bearings are fixedly mounted on the inner walls of the top and the bottom of the mounting groove, the inner wall of one side of the first empty groove, the inner wall of the bottom of the first empty groove and the top of the rectangular block, and inner rings of the five bearings are fixedly connected with the outer sides of the rotating shaft, the bidirectional screw rod, the worm and the rotating rod respectively.
Compared with the prior art, the utility model has the advantages of:
1. this scheme carries out welded connection with fixed link joint and intermediate link joint respectively through two connecting blocks, and the connecting block has connected the tooth piece through high strength bolted connection again, and this technology has replaced traditional rivet connected mode soon, makes the fixed link joint and the tooth piece of product more firm, and is convenient for change.
2. When the hand wheel is rotated, the first bevel gear drives the second bevel gear to rotate, the worm drives the worm gear to rotate, the two-way screw rod drives the two clamping columns to vertically move, and the clamping columns and the clamping grooves are matched, so that the angle between the clamp handle and the connecting sleeve can be conveniently adjusted.
The utility model discloses can reduce production technology step, reduce product weight, practice thrift manufacturing cost, and be convenient for change the tooth piece, simple structure, convenient to use.
Drawings
Fig. 1 is a schematic structural view of a casing tongs for drilling according to the present invention;
FIG. 2 is a schematic structural view of the rectangular block of the casing tongs for drilling and the connecting block according to the present invention;
fig. 3 is an enlarged schematic structural view of a part a in fig. 2 of the casing tongs for drilling according to the present invention.
In the figure: 1. a forceps handle; 2. connecting sleeves; 3. a clamping head; 4. a pin; 5. tightly locking the shaft; 6. locking the chain plate; 7. a tooth block; 8. fixing a chain plate; 9. an intermediate link plate; 10. connecting blocks; 11. a rectangular block; 12. a fixed block; 13. mounting grooves; 14. a rotating shaft; 15. a card slot; 16. a second empty slot; 17. a rotating rod; 18. a hand wheel; 19. a first bevel gear; 20. a second bevel gear; 21. a worm; 22. a worm gear; 23. a chute; 24. clamping the column; 25. two-way lead screw.
Detailed Description
The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments, but not all embodiments.
Example one
Referring to fig. 1-3, a casing tongs for drilling comprises a tongs handle 1, one end of the tongs handle 1 is fixedly connected with a rectangular block 11, the outer side of the rectangular block 11 is rotatably provided with a fixed block 12, one side of the fixed block 12 is connected with a connecting sleeve 2, the inner thread of the connecting sleeve 2 is provided with a clamping head 3, the clamping head 3 is connected with a pin 4, the clamping head 3 is connected with a fixed chain plate 8, the fixed chain plate 8 is connected with an intermediate chain plate 9, the intermediate chain plate 9 is connected with a locking chain plate 6, the locking chain plate 6 is connected with two locking shafts 5, the fixed chain plate 8 and the intermediate chain plate 9 are both connected with connecting blocks 10, the two connecting blocks 10 are both connected with a tooth block 7, one side of the fixed block 12 is provided with a mounting groove 13 in a rotating manner, the mounting groove 13 is provided with a rotating shaft 14, the rectangular block 11 is provided with a mounting hole, the inner wall of the mounting hole is fixedly connected with the outer side of the rotating shaft 14, a first empty groove is arranged in the rectangular block 11, spout 23 has all been seted up to the top and the bottom of rectangular block 11, and first through-hole has all been seted up to the inner wall of two spout 23, is provided with latch mechanism in two first through-holes, has seted up second dead slot 16 in the rectangular block 11.
In this embodiment, the clamping mechanism includes two clamping posts 24, two-way lead screw 25, worm wheel 22 and a plurality of draw-in grooves 15, a plurality of draw-in grooves 15 are seted up respectively at the top inner wall and the bottom inner wall of mounting groove 13, the outside of two clamping posts 24 respectively with the inner wall sliding connection of two spouts 23, clamping post 24 cooperatees with draw-in groove 15, the thread groove has all been seted up on two clamping posts 24, the outside of two-way lead screw 25 and the inner wall threaded connection of two thread grooves, the inner circle of worm wheel 22 and the outside fixed connection of two-way lead screw 25.
In this embodiment, a second through hole is formed in an inner wall of one side of the second empty groove 16, the second through hole is communicated with the first empty groove, a worm 21 is rotatably installed in the second through hole, a second bevel gear 20 is fixedly installed at one end of the worm 21, and the worm 21 is meshed with a worm wheel 22.
In this embodiment, a third through hole is formed in the top of the rectangular block 11, the third through hole is communicated with the second empty groove 16, a rotating rod 17 is rotatably installed in the third through hole, a hand wheel 18 is fixedly installed at one end of the rotating rod 17, a first bevel gear 19 is fixedly installed at the other end of the rotating rod 17, and the first bevel gear 19 is engaged with the second bevel gear 20.
In this embodiment, bearings are fixedly mounted on the top inner wall and the bottom inner wall of the mounting groove 13, the inner wall on one side of the first empty groove and the bottom inner wall, and the top of the rectangular block 11, and inner rings of the five bearings are fixedly connected with the outer sides of the rotating shaft 14, the bidirectional screw rod 25, the worm 21 and the rotating rod 17 respectively.
Example two
Referring to fig. 1-3, a casing tongs for drilling comprises a tongs handle 1, one end of the tongs handle 1 is fixedly connected with a rectangular block 11 by welding, the outer side of the rectangular block 11 is rotatably provided with a fixed block 12, one side of the fixed block 12 is connected with a connecting sleeve 2, a clamping head 3 is arranged in the connecting sleeve 2 through internal threads, a pin 4 is connected on the clamping head 3, a fixed chain plate 8 is connected on the clamping head 3, an intermediate chain plate 9 is connected on the fixed chain plate 8, a locking chain plate 6 is connected on the intermediate chain plate 9, two locking shafts 5 are connected on the locking chain plate 6, connecting blocks 10 are respectively connected on the fixed chain plate 8 and the intermediate chain plate 9 through welding, two tooth blocks 7 are respectively connected on the two connecting blocks 10 through bolts, a mounting groove 13 is arranged on one side of the fixed block 12, a rotating shaft 14 is rotatably arranged in the mounting groove 13, a mounting hole is arranged on the rectangular block 11, and the inner wall of the mounting hole is fixedly connected with the outer side of the rotating shaft 14 through welding, first dead slot has been seted up in rectangular block 11, and spout 23 has all been seted up to the top and the bottom of rectangular block 11, and first through-hole has all been seted up to the inner wall of two spout 23, is provided with clamping mechanism in two first through-holes, has seted up second dead slot 16 in the rectangular block 11.
In this embodiment, the latch mechanism includes two card posts 24, two-way lead screw 25, worm wheel 22 and a plurality of draw-in groove 15, top inner wall and bottom inner wall at mounting groove 13 are seted up respectively to a plurality of draw-in grooves 15, the outside of two card posts 24 respectively with the inner wall sliding connection of two spouts 23, card post 24 cooperatees with draw-in groove 15, the thread groove has all been seted up on two card posts 24, the outside of two-way lead screw 25 and the inner wall threaded connection of two thread grooves, the inner circle of worm wheel 22 passes through welded fastening with the outside of two-way lead screw 25 to be connected, when two-way lead screw 25 rotates, two-way lead screw 20 can drive two card posts 24 vertical removal.
In this embodiment, a second through hole is formed in an inner wall of one side of the second empty groove 16, the second through hole is communicated with the first empty groove, a worm 21 is rotatably installed in the second through hole, a second bevel gear 20 is fixedly installed at one end of the worm 21 through welding, the worm 21 is meshed with a worm wheel 22, and when the worm 21 rotates, the worm wheel 22 can drive the bidirectional screw rod 25 to rotate.
In this embodiment, a third through hole is formed in the top of the rectangular block 11, the third through hole is communicated with the second empty groove 16, a rotating rod 17 is rotatably installed in the third through hole, a hand wheel 18 is fixedly installed at one end of the rotating rod 17 through welding, a first bevel gear 19 is fixedly installed at the other end of the rotating rod 17 through welding, the first bevel gear 19 is meshed with the second bevel gear 20, and when the rotating rod 17 rotates, the first bevel gear 19 can drive the second bevel gear 20 to rotate.
In this embodiment, bearings are fixedly mounted on the top inner wall and the bottom inner wall of the mounting groove 13, the inner wall on one side of the first empty groove and the bottom inner wall, and the top of the rectangular block 11 by welding, inner rings of the five bearings are fixedly connected with the outer sides of the rotating shaft 14, the bidirectional screw rod 25, the worm 21 and the rotating rod 17 by welding, and when the rotating shaft 14, the bidirectional screw rod 25, the worm 21 and the rotating rod 17 rotate, the five bearings can respectively play a role in stabilizing the rotation of the rotating shaft 14, the bidirectional screw rod 25, the worm 21 and the rotating rod 17.
In the embodiment, when the tool is used, the tight-locking chain plates 6, the fixed chain plates 8 and the middle chain plates 9 are sleeved on the outer sides of the sleeves, the clamping heads 3 can be connected and meshed with the tight-locking shafts 5 on the tight-locking chain plates 6, after the clamping heads 3 are meshed with the tight-locking shafts 5, the clamp handle 1 is rotated, the three chain plates, namely the fixed chain plates 8, the middle chain plates 9 and the tight-locking chain plates 6, begin to contract, the tooth blocks 7 fixed on the connecting blocks 10 can hold the sleeves along with the meshing of the clamping heads 3 and the tight-locking shafts 5, the two tooth blocks 7 and the tight-locking chain plates 6 can tightly hold the sleeves along with the continuous stress of the clamp handle 1, and the two tooth blocks 7 and the tight-locking chain plates 6 can be converted into meshing force on the sleeves along with the continuous increase of external force, so that the purpose of screwing or loosening the sleeves or other drilling tools is achieved, when an obstacle or an operation space of an abnormal drilling tool is met, the hand wheel 18 can be rotated, the hand wheel 18 can drive the rotating rod 17 to rotate, the bull stick 17 drives first bevel gear 19 and rotates, first bevel gear 19 drives second bevel gear 20 and rotates, second bevel gear 20 drives worm 21 and rotates, worm 21 drives worm wheel 22 and rotates, worm wheel 22 drives two-way lead screw 25 and rotates, two-way lead screw 25 drives two card post 24 vertical removal, through card post 24 and draw-in groove 15 matched with setting, and then can adjust the angle between pincers handle and the adapter sleeve, thereby can prevent to be difficult to operate when meetting barrier or special-shaped operating space.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (5)
1. A casing tong for drilling, comprising a tong shank (1), characterized in that: one end of the clamp handle (1) is fixedly connected with a rectangular block (11), the outer side of the rectangular block (11) is rotatably provided with a fixed block (12), one side of the fixed block (12) is connected with a connecting sleeve (2), the internal thread of the connecting sleeve (2) is provided with a clamping head (3), the clamping head (3) is connected with a pin (4), the clamping head (3) is connected with a fixed chain plate (8), the fixed chain plate (8) is connected with an intermediate chain plate (9), the intermediate chain plate (9) is connected with a tight locking chain plate (6), the tight locking chain plate (6) is connected with two tight locking shafts (5), the fixed chain plate (8) and the intermediate chain plate (9) are both connected with connecting blocks (10), the two connecting blocks (10) are both connected with tooth blocks (7), one side of the fixed block (12) is provided with a mounting groove (13), the mounting groove (13) is rotatably provided with a rotating shaft (14), and the rectangular block (11) is provided with a mounting hole, the inner wall of mounting hole and the outside fixed connection of pivot (14), seted up first dead slot in rectangular block (11), spout (23) have all been seted up to the top and the bottom of rectangular block (11), and first through-hole has all been seted up to the inner wall of two spout (23), is provided with clamping mechanism in two first through-holes, has seted up second dead slot (16) in rectangular block (11).
2. The casing tongs for drilling according to claim 1, wherein the clamping mechanism comprises two clamping columns (24), a bidirectional screw rod (25), a worm gear (22) and a plurality of clamping grooves (15), the clamping grooves (15) are respectively formed in the top inner wall and the bottom inner wall of the mounting groove (13), the outer sides of the two clamping columns (24) are respectively in sliding connection with the inner walls of the two sliding grooves (23), the clamping columns (24) are matched with the clamping grooves (15), the two clamping columns (24) are respectively provided with a thread groove, the outer side of the bidirectional screw rod (25) is in threaded connection with the inner walls of the two thread grooves, and the inner ring of the worm gear (22) is fixedly connected with the outer side of the bidirectional screw rod (25).
3. The casing tongs for drilling according to claim 2, characterized in that a second through hole is provided on the inner wall of one side of the second hollow groove (16), the second through hole is communicated with the first hollow groove, a worm (21) is rotatably mounted in the second through hole, a second bevel gear (20) is fixedly mounted on one end of the worm (21), and the worm (21) is meshed with the worm wheel (22).
4. The casing tongs for drilling according to claim 3, characterized in that the top of the rectangular block (11) is provided with a third through hole, the third through hole is communicated with the second empty groove (16), a rotating rod (17) is rotatably arranged in the third through hole, one end of the rotating rod (17) is fixedly provided with a hand wheel (18), the other end of the rotating rod (17) is fixedly provided with a first bevel gear (19), and the first bevel gear (19) is meshed with a second bevel gear (20).
5. The casing tongs for drilling according to claim 4, characterized in that bearings are fixedly mounted on the top inner wall and the bottom inner wall of the mounting groove (13), the inner wall on one side and the bottom inner wall of the first empty groove and the top of the rectangular block (11), and the inner rings of the five bearings are fixedly connected with the outer sides of the rotating shaft (14), the bidirectional screw rod (25), the worm (21) and the rotating rod (17), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121288315.2U CN214787252U (en) | 2021-06-09 | 2021-06-09 | Casing tongs for drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121288315.2U CN214787252U (en) | 2021-06-09 | 2021-06-09 | Casing tongs for drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214787252U true CN214787252U (en) | 2021-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121288315.2U Active CN214787252U (en) | 2021-06-09 | 2021-06-09 | Casing tongs for drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214787252U (en) |
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2021
- 2021-06-09 CN CN202121288315.2U patent/CN214787252U/en active Active
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