Clamping device for anti-jamming oil pipe anchoring, grinding and milling

Abstract

The utility model discloses an anti-jamming clamping device for oil pipe anchoring, grinding and milling, and belongs to the field of oil pipe anchoring, grinding and milling. The anti-jamming clamping device comprises a workbench, supporting legs are fixedly connected to the bottom of the workbench, a fixing plate B is fixedly connected to the upper end of the workbench, a clamping device is arranged on the outer wall of the fixing plate B, and a through hole is formed in the middle of the fixing plate B; a slag discharge hole is formed in the upper end of the workbench; the clamping device comprises a connecting plate. The clamping device is arranged, a rotating gear A and a rotating gear B rotate through gear transmission, and therefore a connecting rod A and a connecting rod B are pushed to move, and the clamping action of a clamping plate is achieved. According to the automatic operation, manpower is saved, the operation accuracy and stability are improved, and due to the fact that no direct contact metal surface exists, mechanical abrasion and equipment maintenance cost caused by the mechanical abrasion are reduced through electric driving. And through the design of the rotating gear and the connecting rod, movement is more stable and durable, and the service life of the device is prolonged.

Description

Technical Field

[0001] This application relates to the field of tubing anchor milling, and more particularly, to a clamping device for anti-sticking tubing anchor milling. Background Art

[0002] A tubing anchor is a downhole device used for anchoring downhole strings in production and workover wells. It can improve the stress state of the string, reduce fatigue damage of the string, control the expansion and contraction of the string, reduce leakage, and extend the service life of the string. During the production process of rod pumping, fixing the string can reduce stroke loss and improve pump efficiency; during processes such as fracturing and acidizing, fixing the string can improve the pressure-bearing capacity of downhole tools and strings.

[0003] The patent document with the publication number CN108067646A discloses a clamping and fixing processing device for machining, belonging to the field of machining. It includes a main frame body; a threaded rotating rod horizontally passes through the inner wall of the lower part of the main frame body, and the right end of the threaded rotating rod passes through the right side wall of the main frame body; two threaded blocks are vertically and symmetrically sleeved on the middle of the threaded rotating rod through engaging threads; the upper ends of the two threaded blocks are vertically fixed with two movable clamping plates, and the movable clamping plates are embedded in the grooves of the main frame body; a fixed block is vertically fixed at the upper end of the left side wall of the main frame body.

[0004] In the above application document, during the process of the threaded rotating rod driving the two threaded blocks to gather towards the middle and disperse towards both sides, the threads on the surface of the threaded rotating rod are worn relatively seriously, resulting in a reduced service life of the threaded rotating rod, and it is also laborious to manually rotate the threaded rotating rod. Utility Model Content

[0005] In view of the deficiencies of the prior art, the present utility model provides a clamping device for preventing jamming during tubing anchor milling, which solves the problems raised in the above-mentioned background art. To achieve the above objectives, the present utility model is realized through the following technical solutions: A clamping device for preventing jamming during tubing anchor milling, including a workbench, the bottom of the workbench is fixedly connected with support legs, the upper end of the workbench is fixedly connected with a fixing plate B, the outer wall of the fixing plate B is provided with a clamping device, a through hole is opened in the middle of the fixing plate B, and a slag discharge hole is opened at the upper end of the workbench; The clamping device includes a connecting plate, the connecting plate is fixedly connected to the outer wall of the fixing plate B, the other end of the connecting plate is fixedly connected with a mounting plate, the mounting plate, there is a mounting cavity opened in the middle of the mounting plate, a motor A is fixedly connected to the outer wall of the fixing plate B, the output end of the motor A is fixedly connected with a rotating shaft, the other end of the rotating shaft is fixedly connected with a driving gear, a rotating gear A is meshed on the side of the driving gear, a rotating gear B is meshed at the bottom of the rotating gear A, the driving gear, the rotating gear A and the rotating gear B are rotatably connected inside the mounting cavity, and the outer walls of the rotating gear A and the rotating gear B are both fixedly connected with a connecting rod A, the other end of the connecting rod A is rotatably connected with a clamping plate through a pin shaft, and a connecting rod B is rotatably connected inside the mounting cavity through a pin shaft, and the other end of the connecting rod B is rotatably connected with the clamping plate through a pin shaft.

[0006] Preferably, anti-slip lines are provided on the inner wall of the clamping plate.

[0007] Preferably, a cleaning device is provided at the upper end of the workbench. The cleaning device includes a mounting groove opened on the surface of the workbench, a motor B is fixedly connected to the outer wall of the workbench, the output end of the motor B is fixedly connected with a rotating rod, a thread groove is opened on the outer wall of the rotating rod, a moving block A is threadedly connected to the outer wall of the rotating rod through the thread groove, a moving plate is fixedly connected to the upper end of the moving block A, a worm is fixedly sleeved on the outer wall of the rotating rod, a worm gear is meshed at the upper end of the worm, a threaded rod is fixedly connected to the outer wall of the worm gear, a moving block B is threadedly connected to the outer wall of the threaded rod, a scraper is fixedly connected to the bottom of the moving block B, and the other end of the threaded rod is rotatably connected with a fixing block, and the fixing block is fixedly connected to the upper end of the workbench.

[0008] Preferably, the moving block A is slidably connected inside the mounting groove.

[0009] Preferably, the bottom of the scraper is in close contact with the bottom of the workbench.

[0010] Preferably, an electric spindle is fixedly installed on the outer wall of the moving plate, and a milling cutter is fixedly connected to the output end of the electric spindle.

[0011] The advantages of this application are as follows:

[0012] (1). The present application is provided with a clamping device. By means of gear transmission, the rotating gear A and the rotating gear B rotate, thereby driving the movement of the connecting rod A and the connecting rod B, and realizing the clamping action of the clamping plate. This automated operation not only saves manpower, but also improves the accuracy and stability of the operation. Since there is no directly contacting metal surface, the electric drive reduces mechanical wear and the resulting equipment maintenance costs. The design of the rotating gear and the connecting rod makes the movement smoother and more durable, extending the service life of the device.

[0013] (2). The present application is provided with a cleaning device. By driving the rotation of the rotating rod by the motor B, the cleaning device can automatically clean the waste chips and sundries on the surface of the workbench. The rotating rod drives the moving block A to move in the installation groove through the action of the threaded groove, so that the moving plate approaches the tubing anchor, and the waste chips are discharged through the slag discharge hole. The cooperation of the worm and the worm wheel enables the rotation to be transmitted to the threaded rod, thereby driving the movement of the moving block B and the scraper. This ensures that the surface of the workbench can be continuously cleaned even during the processing, preventing the accumulation of waste chips from affecting the work efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings forming a part of this application are used to provide a further understanding of this application, making other features, objectives, and advantages of this application more obvious. The schematic embodiments and descriptions of the drawings of this application are used to explain this application and do not constitute an improper limitation of this application. In the drawings:

[0015] Figure 1 is the overall structural schematic diagram of the present utility model;

[0016] Figure 2 is the Figure 1 enlarged structural schematic diagram at position A in the

[0017] Figure 3 is the Figure 1 enlarged structural schematic diagram at position B in the

[0018] Figure 4 is the top view structural schematic diagram of the present utility model.

[0019] In the above figures,

[0020] 1. Workbench; 2. Support leg; 4. Fixed plate B; 51. Connecting plate; 52. Mounting plate; 53. Motor A; 54. Rotating shaft; 55. Driving gear; 56. Rotating gear A; 57. Rotating gear B; 58. Link A; 59. Clamping plate; 510. Link B; 511. Anti-slip pattern; 6. Through hole; 61. Mounting groove; 62. Motor B; 63. Rotating rod; 64. Threaded groove; 65. Moving block A; 66. Moving plate; 67. Worm; 68. Worm gear; 69. Moving block B; 610. Scraper; 611. Fixed block; 612. Threaded rod; 71. Electric spindle; 72. Milling cutter; 8. Chip removal hole. Detailed implementation manners

[0021] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0022] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will detail this application with reference to the drawings and in conjunction with the embodiments. Embodiment

[0023] See Figures 1 - 4, this embodiment provides a clamping device for preventing jamming during the milling of tubing anchors, including a workbench 1. A support leg 2 is fixedly connected to the bottom of the workbench 1. A fixing plate B4 is fixedly connected to the upper end of the workbench 1. A clamping device is arranged on the outer wall of the fixing plate B4. A through hole 6 is opened in the middle of the fixing plate B4. A slag discharge hole 8 is opened on the upper end of the workbench 1 for slag discharge; the clamping device includes a connecting plate 51, the connecting plate 51 is fixedly connected to the outer wall of the fixing plate B4, the other end of the connecting plate 51 is fixedly connected to a mounting plate 52. A mounting cavity is opened in the middle of the mounting plate 52. A motor A53 is fixedly connected to the outer wall of the fixing plate B4. The output end of the motor A53 is fixedly connected to a rotating shaft 54. The other end of the rotating shaft 54 is fixedly connected to a driving gear 55. A rotating gear A56 is meshed on the side of the driving gear 55. A rotating gear B57 is meshed at the bottom of the rotating gear A56. The driving gear 55, the rotating gear A56 and the rotating gear B57 are rotatably connected inside the mounting cavity. Connecting rods A58 are fixedly connected to the outer walls of the rotating gear A56 and the rotating gear B57. The other end of the connecting rod A58 is rotatably connected to a clamping plate 59 through a pin shaft. A connecting rod B510 is rotatably connected inside the mounting cavity through a pin shaft. The other end of the connecting rod B510 is rotatably connected to the clamping plate 59 through a pin shaft. Anti-slip lines 511 are arranged on the inner wall of the clamping plate 59, thereby increasing the friction of the clamping plate 59 and improving the stability of clamping. An electric spindle 71 is fixedly installed on the outer wall of the moving plate 66. The output end of the electric spindle 71 is fixedly connected to a milling cutter 72.

[0024] When the above equipment is specifically used, first pass the tubing anchor through the inside of the through hole 6 from the back of the fixing plate B4, and then start the motor A53 to drive the rotating shaft 54 to rotate. Then it will drive the driving gear 55 to rotate, which will drive the meshed rotating gear A56 to rotate. Since the rotating gear B57 is meshed with the rotating gear A56, it will also rotate accordingly, and then drive the connecting rod A58 to rotate inwards. In addition, the connecting rod B510 will also rotate accordingly, driving the clamping plate 59 to move towards the middle, so as to fix the tubing anchor. Embodiment

[0025] See Figures 1 - 4, on the basis of Embodiment 1, a cleaning device is provided at the upper end of the workbench 1. The cleaning device includes an installation groove 61 which is opened on the surface of the workbench 1. The outer wall of the workbench 1 is fixedly connected with a motor B62. The output end of the motor B62 is fixedly connected with a rotating rod 63. A threaded groove 64 is opened on the outer wall of the rotating rod 63. A moving block A65 is threadedly connected to the outer wall of the rotating rod 63 through the threaded groove 64. The upper end of the moving block A65 is fixedly connected with a moving plate 66. A worm 67 is fixedly sleeved on the outer wall of the rotating rod 63. A worm gear 68 is engaged with the upper end of the worm 67. The outer wall of the worm gear 68 is fixedly connected with a threaded rod 612. A moving block B69 is threadedly connected to the outer wall of the threaded rod 612. The bottom of the moving block B69 is fixedly connected with a scraper 610. The other end of the threaded rod 612 is rotatably connected with a fixed block 611. The fixed block 611 is fixedly connected to the upper end of the workbench 1. The moving block A65 is slidably connected inside the installation groove 61, whereby it can be ensured that the moving block A65 moves along the opening direction of the installation groove 61. The bottom of the scraper 610 is in close contact with the bottom of the workbench 1, whereby it can be ensured that the scraper 610 can clean the surface of the workbench 1.

[0026] When the above-mentioned equipment is specifically used, when it is necessary to process the tubing anchor, the moving plate 66 is required to drive the milling cutter 72 to move towards the tubing anchor. Therefore, the motor B62 is started to drive the rotating rod 63 to rotate. Then, under the action of the threaded groove 64, the moving block A65 will be driven to move inside the installation groove 61 towards the direction of the fixed plate B4, thereby driving the moving plate 66 to approach the tubing anchor. The waste chips on the upper end of the workbench 1 will be pushed down the workbench 1 through the slag discharge hole 8 by the bottom of the moving plate 66. At the same time, when the rotating rod 63 rotates, the worm 67 will be driven to rotate. Then, the engaged worm gear 68 will rotate accordingly, and then drive the threaded rod 612 to rotate. Then, the moving block B69 and the scraper 610 at its bottom will be driven to move, and the waste chips on the upper end of the workbench 1 can also be pushed down the workbench 1 through the slag discharge hole 8.

[0027] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. A clamping device for anti-stuck oil pipe anchor milling, comprising a workbench (1), characterized in that: The bottom of the workbench (1) is fixedly connected to a support leg (2), the upper end of the workbench (1) is fixedly connected to a fixing plate B (4), the outer wall of the fixing plate B (4) is provided with a clamping device, a through hole (6) is provided in the middle of the fixing plate B (4), and a slag discharge hole (8) is provided at the upper end of the workbench (1); The clamping device comprises a connecting plate (51), wherein the connecting plate (51) is fixedly connected to the outer wall of the fixing plate B (4), the other end of the connecting plate (51) is fixedly connected to a mounting plate (52), wherein a mounting cavity is provided in the middle of the mounting plate (52), the outer wall of the fixing plate B (4) is fixedly connected to a motor A (53), the output end of the motor A (53) is fixedly connected to a rotating shaft (54), the other end of the rotating shaft (54) is fixedly connected to a driving gear (55), and the side surface of the driving gear (55) is meshed with a rotating gear A (56) ), a rotating gear B (57) is meshed at the bottom of the rotating gear A (56), the driving gear (55), the rotating gear A (56) and the rotating gear B (57) are rotatably connected inside the installation cavity, the outer walls of the rotating gear A (56) and the rotating gear B (57) are fixedly connected with a connecting rod A (58), the other end of the connecting rod A (58) is rotatably connected to a clamping plate (59) via a pin shaft, the inside of the installation cavity is rotatably connected with a connecting rod B (510) via a pin shaft, and the other end of the connecting rod B (510) is rotatably connected to the clamping plate (59) via a pin shaft.

2. The clamping device for anti-stuck oil pipe anchor milling according to claim 1, characterized in that: The inner wall of the clamping plate (59) is provided with anti-slip grooves (511).

3. The clamping device for anti-stuck oil pipe anchor milling according to claim 2 is characterized in that: A cleaning device is provided at the upper end of the workbench (1), the cleaning device comprising a mounting groove (61), the mounting groove (61) being formed on the surface of the workbench (1), the outer wall of the workbench (1) being fixedly connected to a motor B (62), the output end of the motor B (62) being fixedly connected to a rotating rod (63), the outer wall of the rotating rod (63) being provided with a threaded groove (64), the outer wall of the rotating rod (63) being threadedly connected to a moving block A (65) via the threaded groove (64), the upper end of the moving block A (65) being fixedly connected to a moving block A movable plate (66) is provided on the outer wall of the rotating rod (63), a worm (67) is fixedly sleeved thereon, a worm gear (68) is meshed at the upper end of the worm (67), a threaded rod (612) is fixedly connected to the outer wall of the worm gear (68), a moving block B (69) is threadedly connected to the outer wall of the threaded rod (612), a scraper (610) is fixedly connected to the bottom of the moving block B (69), the other end of the threaded rod (612) is rotatably connected to a fixed block (611), and the fixed block (611) is fixedly connected to the upper end of the workbench (1).

4. The clamping device for anti-stuck oil pipe anchor milling according to claim 3 is characterized in that: The moving block A (65) is slidably connected inside the mounting groove (61).

5. The clamping device for anti-stuck oil pipe anchor milling according to claim 4 is characterized in that: The bottom of the scraper (610) is tightly fitted to the bottom of the workbench (1).

6. The clamping device for anti-stuck oil pipe anchor milling according to claim 5, characterized in that: An electric spindle (71) is fixedly mounted on the outer wall of the movable plate (66), and a milling cutter (72) is fixedly connected to the output end of the electric spindle (71).

Images