A long shoe for a worn casing well

Abstract

The utility model discloses a kind of sleeve damage well long rod shoe, belong to the technical field of shoe, aiming at the problem of wobble when shoe polishing, including polishing head, the polishing head top is fixedly connected with joint, the joint bottom is fixedly connected with polishing particle one, waterproof protective housing is provided above the polishing particle one, assembly column is provided in the waterproof protective housing, the utility model starts motor by controller, makes rotating column drive gear to rotate clockwise, rotating plate will rotate counterclockwise at this time, under the rotation of rotating plate, limit block will drive moving rod and support plate to stretch out outward, the stretching out of several support plates will make it contact with well inner wall, and play the effect of support, the effect of limiting to device whole is played, avoid the phenomenon of wobble or deviation under the condition of polishing, also can avoid the abrasion degree of shoe outer wall caused by wobble, affect polishing effect, reduce the problem of abrasion milling efficiency of shoe whole.

Description

Technical Field

[0001] This utility model belongs to the technical field of grinding shoes, specifically relating to a grinding shoe for a long rod in a well with casing damage. Background Technology

[0002] When using existing grinding shoes to grind wells, if the well's inner wall is wide, the grinding shoe may experience uneven force distribution and wobble. This not only prevents even grinding of objects in the well but also causes one side of the grinding shoe to wear severely while the other wears less, reducing the overall grinding efficiency of the shoe. Therefore, a new type of grinding shoe for damaged wells is needed to solve the problem in existing technologies where the grinding shoe shakes when grinding objects in the well, resulting in uneven wear on the outer wall of the grinding shoe, affecting the grinding effect and reducing the overall grinding efficiency of the grinding shoe. Utility Model Content

[0003] The purpose of this invention is to provide a long rod grinding shoe for damaged wells to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a grinding head is included, a connector is fixedly connected to the top of the grinding head, a grinding particle is fixedly connected to the bottom of the connector, a waterproof protective shell is provided above the grinding particle, and an assembly column is provided inside the waterproof protective shell. A rotating cylinder is fixedly connected to the bottom of the waterproof protective shell, a motor is fixedly connected to the top of the rotating cylinder, a rotating column is fixedly connected to the bottom output end of the motor via a coupling, a gear is fixedly connected to the bottom of the rotating column, a rotating plate is provided below the gear, a moving rod is provided below the rotating plate, and a support plate is fixedly connected to the left side of the moving rod.

[0005] It should be noted in the solution that the top of the rotating cylinder is provided with a rotating groove, the inner wall of the rotating groove is rotatably connected to the outside of the assembly column, the right side of the gear is meshed with a toothed ring, and the bottom of the toothed ring is fixedly connected to the top of the rotating plate.

[0006] It is worth noting that the top of the rotating plate is provided with a moving groove, the inner wall of the moving groove contacts a limiting block, the bottom of the limiting block is fixedly connected to the top of the moving rod, and a limiting block is fixedly connected to the bottom of the inner wall of the rotating cylinder, the back of the limiting block being in contact with the front of the moving rod.

[0007] Furthermore, it should be noted that a limiting block two is fixedly connected to the back of the moving rod, the bottom of the limiting block two is fixedly connected to the bottom of the inner wall of the rotating cylinder, the bottom of the moving rod is slidably connected to the bottom of the inner wall of the rotating cylinder, and the inner wall of the toothed ring is rotatably connected to the surface of the inner wall of the rotating cylinder.

[0008] In a preferred embodiment of a long rod grinding shoe for a damaged well, a connecting post 1 is fixedly connected to the top of the joint, a grinding particle 2 is fixedly connected to the outer wall of the connecting post 1, and a grinding plate is fixedly connected to the side of the outer wall of the connecting post 1 near the grinding particle 2.

[0009] As a preferred embodiment of a long rod grinding shoe for a damaged well, the connector has a water hole on its front side, a connecting column two is fixedly connected to the top of the connecting column one, a chip removal groove is provided on the outer wall of the connecting column two, and a chip removal block is fixedly connected to the side of the outer wall of the connecting column two near the chip removal groove.

[0010] As a preferred embodiment of a long rod grinding shoe for a damaged well, the number of chip removal grooves is several, and the several chip removal grooves are arranged in a ring array. The number of chip removal blocks is several, and the several chip removal blocks are arranged in a ring array. The top of the connecting column two is fixedly connected to the bottom of the assembly column.

[0011] Compared with the prior art, the casing damage well long rod grinding shoe provided by this utility model has at least the following beneficial effects: (1) Start the motor through the controller, so that the rotating column drives the gear to rotate clockwise. At this time, the rotating plate will rotate counterclockwise. Under the rotation of the rotating plate, the limit block will drive the moving rod and the support plate to extend outward. The extension of several support plates will make them contact the inner wall of the well and play a supporting role. This will limit the overall device and prevent it from shaking or shifting during grinding. It can also prevent the uneven wear of the outer wall of the grinding shoe caused by shaking, which will affect the grinding effect and reduce the overall grinding efficiency of the grinding shoe.

[0012] (2) Water is sprayed out through the water hole. Under the rotation of the whole device, the grinding plate and grinding particles will crush the larger chips a second time. At the same time, under the clockwise rotation of the whole device, the chip mixture will move upward along the chip discharge groove and fixed chip discharge block opened on the connecting column. Since the chip discharge groove and chip discharge block are both arc-shaped, the chip mixture will be discharged faster when the device rotates clockwise, avoiding the accumulation of chips at the bottom that affects the milling effect or causes the drill to jam, thus protecting the whole device. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the rotating plate structure of this utility model; Figure 3 This is a schematic diagram of the movable rod structure of this utility model; Figure 4 This is a schematic diagram of the chip removal block structure of this utility model.

[0014] In the picture: 101. Grinding head; 102. Connector; 103. Grinding grit; 104. Assembly column; 105. Waterproof protective shell; 201. Rotating cylinder; 202. Motor; 203. Rotating column; 204. Gear; 205. Gear ring; 206. Rotating plate; 207. Moving groove; 208. Limiting block; 209. Limiting block one; 210. Limiting block two; 211. Moving rod; 212. Support plate; 301. Connecting post one; 302. Grinding particles two; 303. Grinding plate; 304. Water hole; 305. Connecting post two; 306. Chip removal groove; 307. Chip removal block. Detailed Implementation

[0015] Please see Figure 1-4 The present invention provides a grinding head 101, a connector 102 fixedly connected to the top of the grinding head 101, a grinding particle 103 fixedly connected to the bottom of the connector 102, a waterproof protective shell 105 provided above the grinding particle 103, and an assembly column 104 provided inside the waterproof protective shell 105. A rotating cylinder 201 is fixedly connected to the bottom of the waterproof protective shell 105. A motor 202 is fixedly connected to the top of the rotating cylinder 201. A remote controller, model Modicon M241, is installed on the motor 202. A rotating column 203 is fixedly connected to the bottom output end of the motor 202 via a coupling. A gear 204 is fixedly connected to the bottom of the rotating column 203. A rotating plate 206 is installed below the gear 204. A moving rod 211 is installed below the rotating plate 206. A support plate 212 is fixedly connected to the left side of the moving rod 211. The sharp part on the outer wall of the support plate 212 can improve its fixing effect.

[0016] Further as Figure 3 As shown, a limiting block 210 is fixedly connected to the back of the moving rod 211. The bottom of the limiting block 210 is fixedly connected to the bottom of the inner wall of the rotating cylinder 201. The bottom of the moving rod 211 is slidably connected to the bottom of the inner wall of the rotating cylinder 201. The inner wall of the toothed ring 205 is rotatably connected to the inner wall surface of the rotating cylinder 201. A connecting post 301 is fixedly connected to the top of the connector 102. A grinding particle 302 is fixedly connected to the outer wall of the connecting post 301. The outer surface of the grinding particle 302 is coated with a tungsten carbide wear-resistant coating to improve the service life of the grinding particle 302. A grinding plate 303 is fixedly connected to the side of the outer wall of the connecting post 301 near the grinding particle 302.

[0017] Further as Figure 3As shown, a rotating groove is provided at the top of the rotating cylinder 201. The inner wall of the rotating groove is rotatably connected to the outside of the assembly column 104. A gear ring 205 is meshed with the right side of the gear 204. The bottom of the gear ring 205 is fixedly connected to the top of the rotating plate 206. A moving groove 207 is provided at the top of the rotating plate 206. The inner wall of the moving groove 207 contacts a limiting block 208. The bottom of the limiting block 208 is fixedly connected to the top of the moving rod 211. A first limiting block 209 is fixedly connected to the bottom of the inner wall of the rotating cylinder 201. The back of the first limiting block 209 contacts the front of the moving rod 211.

[0018] Further as Figure 2 and Figure 4 As shown, a water eye 304 is provided on the front of the connector 102. A connecting post 2 305 is fixedly connected to the top of the connecting post 1 301. A chip removal groove 306 is provided on the outer wall of the connecting post 2 305. A chip removal block 307 is fixedly connected to the side of the outer wall of the connecting post 2 305 near the chip removal groove 306. The outer wall of the chip removal block 307 is coated with a tungsten carbide wear-resistant coating to increase its wear resistance and reduce the wear of chips. There are several chip removal grooves 306 arranged in a ring array. There are several chip removal blocks 307 arranged in a ring array. The top of the connecting post 2 305 is fixedly connected to the bottom of the assembly post 104.

[0019] In summary: If the device shakes during grinding, first stop its rotation. Then, start the motor 202 via the controller. This will cause the rotating column 203 to drive the gear 204 to rotate clockwise. Since the gear ring 205 is meshed with the gear 204, it will drive the rotating plate 206 to rotate counterclockwise. Because the rotating plate 206 has a moving groove 207 on its top, the moving groove 207 will move the limiting block 208 under the restriction of the first limiting block 209 and the second limiting block 210 while rotating counterclockwise. At this time, several moving rods 211 will drive several support plates 212 to extend outward, contacting the inner wall of the well and providing support. Since the rotating cylinder 201 and the assembly column 104 are rotatably connected, it will not affect the grinding of the device itself, thus preventing the device from shaking when grinding this position. After grinding is completed, the motor 202 can be started. Rotating the rotating plate 206 clockwise resets several support plates 212, allowing the device to perform subsequent in-depth grinding. This prevents the device from shaking or shifting during grinding, and also avoids uneven wear on the outer wall of the grinding shoe caused by shaking, which would affect the grinding effect and reduce the overall grinding efficiency. Water is sprayed through the water eye 304, and the rotation of the device causes the grinding plate 303 and the second grinding particle 302 to further crush larger chips. At the same time, the clockwise rotation of the device causes the chip mixture to move upward along the chip discharge groove 306 and the fixed chip discharge block 307 on the second connecting column 305. Since the chip discharge groove 306 and the chip discharge block 307 are both arc-shaped, the clockwise rotation of the device accelerates the discharge of the chip mixture, preventing chip accumulation at the bottom from affecting the grinding effect or causing the drill to jam, thus protecting the entire device.

[0020] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding shoe for a long rod in a damaged well, comprising a grinding head (101), characterized in that, The top of the grinding head (101) is fixedly connected to a connector (102), the bottom of the connector (102) is fixedly connected to a grinding particle (103), a waterproof protective shell (105) is provided above the grinding particle (103), and an assembly column (104) is provided inside the waterproof protective shell (105). The bottom of the waterproof protective shell (105) is fixedly connected to a rotating cylinder (201), the top of the rotating cylinder (201) is fixedly connected to a motor (202), the bottom output end of the motor (202) is fixedly connected to a rotating column (203) via a coupling, the bottom of the rotating column (203) is fixedly connected to a gear (204), a rotating plate (206) is provided below the gear (204), a moving rod (211) is provided below the rotating plate (206), and a support plate (212) is fixedly connected to the left side of the moving rod (211).

2. The long rod grinding shoe for casing damage wells according to claim 1, characterized in that: The top of the rotating cylinder (201) is provided with a rotating groove, the inner wall of the rotating groove is rotatably connected to the outside of the assembly column (104), and a gear ring (205) is meshed with the right side of the gear (204). The bottom of the gear ring (205) is fixedly connected to the top of the rotating plate (206).

3. The long rod grinding shoe for casing damage wells according to claim 2, characterized in that: The rotating plate (206) has a moving groove (207) at the top. The inner wall of the moving groove (207) contacts a limiting block (208). The bottom of the limiting block (208) is fixedly connected to the top of the moving rod (211). The bottom of the inner wall of the rotating cylinder (201) is fixedly connected to a first limiting block (209). The back of the first limiting block (209) is in contact with the front of the moving rod (211).

4. A long rod grinding shoe for casing damage wells according to claim 3, characterized in that: The moving rod (211) is fixedly connected to the back of the limiting block 2 (210), the bottom of the limiting block 2 (210) is fixedly connected to the bottom of the inner wall of the rotating cylinder (201), the bottom of the moving rod (211) is slidably connected to the bottom of the inner wall of the rotating cylinder (201), and the inner wall of the toothed ring (205) is rotatably connected to the inner wall surface of the rotating cylinder (201).

5. A long rod grinding shoe for casing damage wells according to claim 1, characterized in that: The top of the connector (102) is fixedly connected to a connecting post one (301), the outer wall of the connecting post one (301) is fixedly connected to a polishing particle two (302), and the outer wall of the connecting post one (301) is fixedly connected to a polishing plate (303) on the side of the outer wall of the connecting post one (301) close to the polishing particle two (302).

6. A long rod grinding shoe for casing damage wells according to claim 5, characterized in that: The connector (102) has a water eye (304) on its front side. The top of the first connecting post (301) is fixedly connected to the second connecting post (305). The outer wall of the second connecting post (305) has a chip removal groove (306). The side of the outer wall of the second connecting post (305) near the chip removal groove (306) is fixedly connected to a chip removal block (307).

7. A long rod grinding shoe for casing damage wells according to claim 6, characterized in that: The number of chip removal grooves (306) is several, and the chip removal grooves (306) are arranged in a ring array. The number of chip removal blocks (307) is several, and the chip removal blocks (307) are arranged in a ring array. The top of the connecting column two (305) is fixedly connected to the bottom of the assembly column (104).

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