Simple mounting and dismounting device for packing box of oil pumping unit

Abstract

The utility model relates to the technical field of oil pumping unit packing dismounting and mounting, and discloses an oil pumping unit packing box simple mounting and dismounting device which comprises a packing dismounting and mounting assembly, the packing dismounting assembly comprises a locking hoop, a vertical concave frame is fixedly connected to the locking hoop, a lead screw is rotatably connected to the vertical concave frame, a moving block is in threaded connection to the lead screw, and a packing box is arranged on the moving block. A lifting rod is fixedly connected to the moving block, a supporting plate is fixedly connected to the upper portion of the lifting rod, the upper portion of the lifting rod is sleeved with a connecting plate, the upper portion of the lifting rod is in threaded connection with a locking nut, a T-shaped pressing base is fixedly connected to the connecting plate, a U-shaped clamping groove is formed in the T-shaped pressing base, and four opening grooves are formed in the four side walls of the T-shaped pressing base. A hook rod for spiral sealing packing is clamped in the open groove, and the upper portion of the hook rod is fixedly connected with a baffle ring. The screw rod lifting structure is used for lifting and pressing the spiral sealing packing, so that the sealing packing does not need to be disassembled and assembled manually, the disassembly and assembly are more convenient, and the efficiency is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of packing disassembly and assembly of oil pumping units, in particular to a simple installation and disassembly device for a packing box of an oil pumping unit. Background Art

[0002] At present, in the later stage of oil field development, pumping units and oil well pumps are generally used as equipment for pumping well fluid. The blowout preventer is an important component of the wellhead seal of the pumping unit. The rubber packing with oblique cuts is filled inside, which plays the role of sealing the polished rod when the polished rod reciprocates up and down. The inner ring of the packing will be severely worn due to the reciprocating friction of the polished rod, resulting in oil leakage at the wellhead, thereby polluting the environment. Therefore, it is often necessary to replace the packing to ensure the normal production of the oil well.

[0003] When disassembling and assembling the existing packing of oil pumping units, personnel generally use a wrench to hook the spiral sealing packing in the packing box back and forth upwards. However, in actual operation, the personnel cannot exert force upwards and need to hook it repeatedly, which is inconvenient to operate. At the same time, when installing the packing, the personnel will use tools to poke and squeeze the packing, thereby stuffing the packing into the packing box, which is very strenuous and cannot press the packing down evenly, resulting in the need for repeated continuous squeezing, which is inconvenient to operate. In order to solve the above-mentioned problems, a simple installation and disassembly device for the packing box of an oil pumping unit is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a simple installation and disassembly device for a packing box of an oil pump in order to solve the above-mentioned problems.

[0005] The technical solution adopted by the utility model is as follows: a simple installation and disassembly device for a packing box of an oil pumping unit, comprising a packing box for an oil pumping unit and a packing disassembly assembly, wherein a spiral sealing packing is inserted into the packing box, a polished rod for an oil pumping unit is movably connected up and down in the packing box, a pressure cap is threadedly connected to the upper part of the packing box, the pressure cap is sleeved on the polished rod, the packing disassembly assembly comprises a locking hoop, the locking hoop is locked and fixedly installed on the packing box, a vertical concave frame is fixedly connected to the locking hoop, a screw rod is rotatably connected to the vertical concave frame, a shift block is threadedly connected to the screw rod, A lifting rod is fixedly connected to the shift block, and the lifting rod is slidably connected to the upper part of the vertical concave frame, and a supporting plate is fixedly connected to the upper part of the lifting rod, and a connecting plate is inserted into the upper part of the lifting rod, and a locking nut is threadedly connected to the upper part of the lifting rod, and a T-shaped pressure seat is fixedly connected to the connecting plate, and the T-shaped pressure seat is provided with a U-shaped groove, and the light rod is inserted into the U-shaped groove, and four open grooves arranged in an array are provided on the four side walls of the T-shaped pressure seat, and the hook rod for the spiral sealing packing is inserted into the open groove, and a retaining ring is fixedly connected to the upper part of the hook rod.

[0006] In a preferred embodiment, the locking hoop includes two semicircular hoops, the vertical concave frame is fixedly mounted on one of the semicircular hoops, and the two semicircular hoops are connected together by bolts.

[0007] In a preferred embodiment, the lower end of the screw rod is fixedly connected with a hexagon socket bolt head.

[0008] In a preferred embodiment, a positioning groove is formed on the support plate, a positioning plate is fixedly connected to the bottom of the connecting plate, and the positioning plate is inserted into the positioning groove.

[0009] In a preferred embodiment, the width of the U-shaped groove is greater than the diameter of the polished rod.

[0010] In a preferred embodiment, the diameter of the retaining ring is greater than the width of the opening groove, the lower end of the hook rod is a pointed structure, and the lower end of the hook rod is upwardly tilted to form a hook shape.

[0011] In a preferred embodiment, a sleeve hole is provided on the connecting plate, and the lifting rod passes through the sleeve hole.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] 1. In the utility model, when disassembling the packing, the personnel hook the hook rod with the packing, and then just rotate the screw rod to drive the T-shaped pressure seat to move upward, thereby pushing the hook rod to move upward to pull out the spiral sealing packing, so as to quickly disassemble the sealing packing, the disassembly operation is simple, more convenient and more efficient.

[0014] 2. In the utility model, when installing a new spiral sealing disk packing, the personnel only need to rotate the screw rod in the opposite direction to move the T-shaped pressure seat downward, so that the spiral sealing disk can be forced into the packing box. The installation operation is convenient, the packing is evenly packed, and the installation efficiency is higher.

[0015] 3. In the utility model, the T-shaped pressure seat does not contact the polished rod through the U-shaped slot, so when the packing disassembly assembly disassembles the spiral sealing packing, it will not cause any damage to the polished rod, and the polished rod structure is effectively protected during the disassembly operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the packing disassembly and assembly assembly of the utility model;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the positioning groove and the positioning plate in the utility model.

[0019] Markings in the figure: 1-packing box, 2-packing disassembly and assembly assembly, 3-spiral sealing packing, 4-plain rod, 6-locking hoop, 7-vertical concave frame, 8-screw rod, 9-moving block, 10-lifting rod, 11-support plate, 12-connecting plate, 13-locking nut, 14-T-type pressure seat, 15-U-type slot, 16-open slot, 17-hook rod, 18-retaining ring, 19-pressure cap, 20-semicircular hoop, 21-hexagon socket bolt head, 22-positioning slot, 23-positioning plate, 24-hole. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The following will be combined Figure 1-Figure 3 A simple installation and removal device for a packing box of an oil pumping unit according to an embodiment of the utility model is described in detail.

[0022] Example:

[0023] The utility model provides a simple installation and removal device for the packing box of an oil pumping unit, referring to Figures 1 to 3 As shown, it includes a packing box 1 for an oil pumping unit, a spiral sealing packing 3 is inserted into the packing box 1, a polished rod 4 for an oil pumping unit is movably connected up and down in the packing box 1, a pressure cap 19 is threadedly connected to the upper part of the packing box 1, and the pressure cap 19 is inserted into the polished rod 4. This structure utilizes the pressure cap 19 to squeeze the spiral sealing packing 3 in the packing box 1, thereby utilizing the connection between the spiral sealing packing 3, the polished rod 4 and the packing box 1 for sliding sealing.

[0024] refer to Figures 1 to 3As shown, the packing disassembly and assembly component 2 includes a locking hoop 6, which is locked and fixedly installed on the packing box 1, and the locking hoop 6 is fixedly connected to a vertical concave frame 7, and the vertical concave frame 7 is rotatably connected to a screw rod 8, and a moving block 9 is threadedly connected to the screw rod 8, and a lifting rod 10 is fixedly connected to the moving block 9, and the lifting rod 10 is slidably connected to the upper part of the vertical concave frame 7, and the upper part of the lifting rod 10 is fixedly connected to a support plate 11, and the upper part of the lifting rod 10 is sleeved with a connecting plate 12, and the lifting rod 10 is fixedly connected to the upper part of the vertical concave frame 7. The upper part of the lowering rod 10 is threadedly connected with a locking nut 13, and the connecting plate 12 is fixedly connected with a T-shaped pressure seat 14. Four side walls of the T-shaped pressure seat 14 are provided with four open grooves 16 arranged in an array. A hook rod 17 for the spiral sealing packing 3 is inserted into the open groove 16. The upper part of the hook rod 17 is fixedly connected with a retaining ring 18. When the spiral sealing packing 3 needs to be disassembled, the personnel first disassemble the pressure cap 19 and hang it on the upper part of the light rod through a steel wire, and then the personnel will vertically The concave frame 7 is fixedly installed on the packing box 1 through the locking hoop 6, and the upper part of the vertical concave frame 7 does not exceed the upper end of the packing box 1. Then the personnel put the connecting plate 12 on the lifting rod 10 and support it on the supporting plate 11. Then the personnel screw the locking nut 13 on the lifting rod 10 to fix the T-shaped pressure seat 14 on the connecting plate 12 on the lifting rod 10. Then the personnel insert the hook rod 17 into the opening groove 16 of the T-shaped pressure seat 14 and manually align the hook rod 17 with the packing box 1. The spiral sealing packing 3 of the upper part is hooked, and then the personnel rotate the screw rod 8 through the energy-saving wrench. At this time, the screw rod 8 drives the lifting rod 10 on the shift block 9 to move upward, thereby driving the T-shaped pressure seat 14 on the connecting plate 12 to move upward, and then pushing the retaining ring 18 to drive the hook rod 17 to move upward, thereby forcibly pulling the spiral sealing packing 3 out of the packing box 1, so that the spiral sealing packing 3 can be quickly disassembled, and the disassembly is convenient, without the need for personnel to manually hook and pull the spiral sealing packing 3 upward, thereby improving the disassembly efficiency;

[0025] When the spiral sealing packing 3 needs to be installed, the personnel first removes the hook rod 17, and then the personnel puts the spiral sealing packing 3 onto the bare rod 4 and pre-inserts it into the packing box 1. Then the personnel reversely rotates the screw rod 8 with the energy-saving wrench, and uses the screw rod 8 to drive the T-shaped pressure seat 14 to descend, so as to use the T-shaped pressure seat 14 to force the spiral sealing packing 3 into the packing box 1, thereby completing the installation of the spiral sealing packing 3. The installation is convenient and fast, and personnel do not need to use tools to poke the spiral sealing packing 3 back and forth, thereby improving the installation efficiency.

[0026] refer to Figures 1 to 3 As shown, the diameter of the retaining ring 18 is greater than the width of the opening groove 16. This structure enables the T-shaped pressure seat 14 to push the hook rod 17 upward. The lower end of the hook rod 17 is a pointed structure, and the lower end of the hook rod 17 is upwardly tilted in a hook shape. This structure ensures that the hook rod 17 can hook the spiral sealing packing 3.

[0027] refer to Figures 1 to 3As shown, the T-shaped pressure seat 14 is provided with a U-shaped groove 15, and the polished rod 4 is inserted into the U-shaped groove 15. The width of the U-shaped groove 15 is greater than the diameter of the polished rod 4. In this structure, when the connecting plate 12 is connected to the lifting rod 10, the T-shaped pressure seat 14 will be inserted into the U-shaped groove 15. Since the width of the U-shaped groove 15 is greater than the diameter of the polished rod 4, the T-shaped pressure seat 14 will not contact the polished rod 4, thereby causing no friction damage to the polished rod 4.

[0028] refer to Figures 1 to 3 As shown, a sleeve hole 24 is clamped on the connecting plate 12, and the lifting rod 10 passes through the sleeve hole 24. In this structure, the lifting rod 10 is sleeved with the lifting rod 10 by using the sleeve hole 24.

[0029] refer to Figures 1 to 3 As shown, a positioning groove 22 is opened on the support plate 11, and a positioning plate 23 is fixedly connected to the bottom of the connecting plate 12. The positioning plate 23 is inserted into the positioning groove 22. This structural positioning block 23 is inserted into the positioning groove 22, thereby positioning the connection position between the connecting plate 12 and the lifting rod 10.

[0030] refer to Figures 1 to 3 As shown, the locking hoop 6 includes two semicircular hoops 20, and the vertical concave frame 7 is fixedly installed on one of the semicircular hoops 20. The two semicircular hoops 20 are connected together by bolts. The curvature of the two semicircular hoops 20 of this structure adapts to the curvature of the packing box 1, and then the two semicircular hoops 20 are tightened by bolt connection, so that the locking hoop 6 and the packing box 1 are locked together.

[0031] refer to Figures 1 to 3 As shown, the lower end of the screw rod 8 is fixedly connected with a hexagon socket bolt head 21. The hexagon socket bolt head 21 of this structure facilitates the screw rod 8 to be rotated by a wrench.

[0032] It should be noted that the disassembly and assembly structure of the above-mentioned embodiment is applied to the disassembly and assembly of packing of an oil pumping unit, and belongs to the technical field of disassembly and assembly of packing of an oil pumping unit.

[0033] The implementation principle of a simple installation and removal device for a packing box of an oil pumping unit in an embodiment of the present application is as follows: when it is necessary to remove the spiral sealing packing 3, the personnel first remove the pressure cap 19 and hang it by hooking it with the upper part of the bare rod through a steel wire, and then the personnel fix the vertical concave frame 7 on the packing box 1 through the locking hoop 6, and make the upper part of the vertical concave frame 7 not exceed the upper end of the packing box 1, and then the personnel insert the connecting plate 12 into the lifting rod 10 and support it on the supporting plate 11, and then the personnel screw the locking nut 13 into the lifting rod 10, so as to fix the T-shaped pressure seat 14 on the connecting plate 12 on the lifting rod 10 , and then the personnel insert the hook rod 17 into the opening groove 16 of the T-shaped pressure seat 14, and manually hook the hook rod 17 with the spiral sealing packing 3 inside the packing box 1, and then the personnel rotate the screw rod 8 through the energy-saving wrench. At this time, the screw rod 8 drives the lifting rod 10 on the shift block 9 to move upward, thereby driving the T-shaped pressure seat 14 on the connecting plate 12 to move upward, and then pushes the retaining ring 18 to drive the hook rod 17 to move upward, thereby forcibly pulling the spiral sealing packing 3 out of the packing box 1, so that the spiral sealing packing 3 can be quickly disassembled, and the disassembly is convenient, and there is no need for personnel to manually hook and pull the spiral sealing packing 3 upward, thereby improving the disassembly efficiency;

[0034] When the spiral sealing packing 3 needs to be installed, the personnel first removes the hook rod 17, and then the personnel puts the spiral sealing packing 3 onto the bare rod 4 and pre-inserts it into the packing box 1. Then the personnel reversely rotates the screw rod 8 with the energy-saving wrench, and uses the screw rod 8 to drive the T-shaped pressure seat 14 to descend, so as to use the T-shaped pressure seat 14 to force the spiral sealing packing 3 into the packing box 1, thereby completing the installation of the spiral sealing packing 3. The installation is convenient and fast, and personnel do not need to use tools to poke the spiral sealing packing 3 back and forth, thereby improving the installation efficiency.

[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A simple installation and removal device for a packing box of an oil pumping unit, comprising a packing box for an oil pumping unit (1) and a packing assembly and removal component (2), characterized in that: The packing box (1) has a spiral sealing packing (3) inserted therein, and a pumping unit polished rod (4) is movably connected therein, and a pressure cap (19) is threadedly connected to the upper portion of the packing box (1), and the pressure cap (19) is sleeved on the polished rod (4). The packing disassembly and assembly component (2) comprises a locking hoop (6), and the locking hoop (6) is fixedly mounted on the packing box (1), and a vertical concave frame (7) is fixedly connected to the locking hoop (6), and a screw rod (8) is rotatably connected to the vertical concave frame (7), and a moving block (9) is threadedly connected to the moving block (9), and a lifting rod (10) is fixedly connected to the lifting rod (10), and the lifting rod (10) is rotatably mounted on the vertical concave frame (7). The upper part is slidably connected, the upper part of the lifting rod (10) is fixedly connected with a supporting plate (11), the upper part of the lifting rod (10) is sleeved with a connecting plate (12), the upper part of the lifting rod (10) is threadedly connected with a locking nut (13), the connecting plate (12) is fixedly connected with a T-shaped pressure seat (14), the T-shaped pressure seat (14) is provided with a U-shaped groove (15), the light rod (4) is inserted into the U-shaped groove (15), the four side walls of the T-shaped pressure seat (14) are provided with four open grooves (16) arranged in an array, the open groove (16) is inserted with a hook rod (17) for the spiral sealing packing (3), and the upper part of the hook rod (17) is fixedly connected with a retaining ring (18).

2. The simple installation and removal device for the packing box of an oil pumping unit according to claim 1, characterized in that: The locking hoop (6) comprises two semicircular hoops (20), the vertical concave frame (7) is fixedly mounted on one of the semicircular hoops (20), and the two semicircular hoops (20) are connected together by bolts.

3. The simple installation and removal device for the packing box of an oil pumping unit according to claim 1, characterized in that: The lower end of the screw rod (8) is fixedly connected with a hexagon socket bolt head (21).

4. The simple installation and removal device for the packing box of an oil pumping unit according to claim 1, characterized in that: The support plate (11) is provided with a positioning groove (22), the bottom of the connecting plate (12) is fixedly connected with a positioning plate (23), and the positioning plate (23) is inserted into the positioning groove (22).

5. The simple installation and removal device for packing box of oil pumping unit according to claim 1, characterized in that: The width of the U-shaped groove (15) is greater than the diameter of the polished rod (4).

6. The simple installation and removal device for packing box of an oil pumping unit according to claim 1, characterized in that: The diameter of the retaining ring (18) is greater than the width of the opening groove (16); the lower end of the hook rod (17) is a pointed structure, and the lower end of the hook rod (17) is tilted upward to form a hook shape.

7. The simple installation and removal device for packing box of oil pumping unit according to claim 1, characterized in that: The connecting plate (12) is provided with a sleeve hole (24), and the lifting rod (10) passes through the sleeve hole (24).

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