Sealing device for speed reducer of oil pumping unit

Abstract

The utility model relates to the technical field of oil pumping unit speed reducers, and discloses an oil pumping unit speed reducer sealing device which comprises a sealing box, a speed reducer is fixedly connected in the sealing box, a motor is fixedly connected in the sealing box, and the output end of the motor is fixedly connected with a first belt pulley. The input end of the speed reducer is fixedly connected with a second belt pulley, a belt is arranged between the first belt pulley and the second belt pulley in a sleeved mode, the top end of the sealing box is rotationally connected with a top cover, and one side of the sealing box is fixedly connected with a connecting block. According to the sealing box, by covering the top cover and pushing the handle inwards, the clamping rod extrudes the extrusion spring in the mounting shell to push the limiting block so that the clamping rod can be clamped with the clamping hole, the effect that the sealing box can be sealed and opened is achieved, mounting and dismounting of the speed reducer are facilitated, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil pump reducers, in particular to a sealing device for an oil pump reducer. Background Art

[0002] The reducer of the oil pumping unit is a key equipment in the field of oil extraction. It is mainly used to convert the speed of the motor into the appropriate speed required by the oil pumping unit to achieve the purpose of reducing the number of strokes of the oil pumping unit. Among the surface extraction equipment of the oil field, the beam pumping unit is a common mechanical oil extraction equipment, and its reducer plays a particularly important role. The reducer not only determines the operating efficiency of the oil pumping unit, but also has a direct impact on its life and stability. When installing and using the oil pumping unit reducer, a sealing device for the oil pumping unit reducer is required. The sealing device of the oil pumping unit reducer includes a sealing mechanism, a fastening mechanism and other auxiliary mechanisms.

[0003] In the prior art, the sealing devices of the oil pump reducers are mostly installed using a fixed structure or an integrated splicing structure and cannot be flexibly disassembled, which makes the maintenance of the oil pump reducers during installation and use inconvenient and reduces the overall practicality of the device. Summary of the invention

[0004] In order to remedy the above deficiencies, the utility model provides a pumping unit reducer sealing device, aiming to improve the problem of reduced overall practicality of the device caused by the fact that most pumping unit reducer sealing devices are installed using a fixed structure or an integrated splicing mechanism.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sealing device for a pumping unit reducer comprises a sealing box, a reducer is fixedly connected to the inside of the sealing box, a motor is fixedly connected to the inside of the sealing box, a belt pulley 1 is fixedly connected to the output end of the motor, a belt pulley 2 is fixedly connected to the input end of the reducer, a belt is sleeved between the belt pulleys 1 and 2, a top cover is rotatably connected to the top of the sealing box, a connecting block is fixedly connected to one side of the sealing box, a fastening mechanism is arranged between the sealing box and the top cover, and a maintenance mechanism is arranged at the top of the top cover.

[0006] As a further description of the above technical solution:

[0007] The fastening mechanism includes two fixed blocks, one end of the two fixed blocks away from the connecting block is fixedly connected to one side of the top cover, the one side of the two fixed blocks away from the top cover is fixedly connected to a mounting shell, the interiors of the two mounting shells are fixedly connected to extrusion springs, the opposite sides of the two extrusion springs are fixedly connected to limiting blocks, the interiors of the two mounting shells are slidably connected to locking rods, both ends of the connecting block are provided with locking holes, and the two locking rods are engaged with the two locking holes.

[0008] As a further description of the above technical solution:

[0009] The sealing device of the oil pump reducer according to the above technical solution is characterized in that: the maintenance mechanism includes two maintenance covers, the tops of the two maintenance covers are rotatably connected to the top of the top cover, an installation box is slidably connected between the two maintenance covers, two limit plates are slidably connected inside the installation box, the opposite sides of the two limit plates are fixedly connected with return springs, the opposite sides of the two return springs are fixedly connected with push blocks, the inside of the installation box is rotatably connected with a turntable, both sides of the turntable are fixedly connected with clamping blocks, the opposite sides of the two push blocks are fixedly connected with pin rods, the opposite sides of the two maintenance covers are provided with engaging grooves, and the two pin rods are engaged with the two engaging grooves.

[0010] As a further description of the above technical solution:

[0011] The two limit blocks are slidably connected inside the two mounting shells, the opposite sides of the two engaging rods are fixedly connected with handles, and the two engaging rods pass through the opposite sides of the two mounting shells.

[0012] As a further description of the above technical solution:

[0013] A sealing rubber ring is arranged on the outer periphery of the bottom of the top cover.

[0014] As a further description of the above technical solution:

[0015] Shallow grooves are provided on opposite sides of the two push blocks, and deep grooves are provided on opposite sides of the two push blocks at positions relative to the two shallow grooves.

[0016] As a further description of the above technical solution:

[0017] The outside of the rotating disk is fixedly connected with a shifting rod, and the outside of the shifting rod is covered with an anti-slip cover.

[0018] As a further description of the above technical solution:

[0019] The two push blocks are both slidably connected to the interior of the installation box, and the two pin rods pass through both ends of the installation box.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, by covering the top cover, pushing the handle inward, the clamping rod squeezes the extrusion spring in the installation shell to push the limit block so that the clamping rod is clamped with the clamping hole, and the handle is released. The extrusion spring rebounds and drives the limit block so that the clamping rod is clamped with the clamping hole to complete the sealing of the sealing box, achieving the effect that the sealing box can be sealed and opened, facilitating the installation and disassembly of the reducer, and improving the practicality of the device.

[0022] 2. In the utility model, the lever is turned to rotate the turntable so that the block slides from the shallow groove into the deep groove, and the inspection cover can be opened by pushing the relative movement to release the engagement state between the pin and the engagement groove, thereby achieving the effect of convenient maintenance of the reducer and improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of the sealing device for the oil pump reducer proposed by the utility model;

[0024] Figure 2 This is a cross-sectional view of the sealing box of the oil pumping unit reducer sealing device proposed by the utility model;

[0025] Figure 3 This is a cross-sectional view of the installation shell of the pumping unit reducer sealing device proposed by the utility model;

[0026] Figure 4 This is a cross-sectional view of the installation box of the pumping unit reducer sealing device proposed by the utility model;

[0027] Figure 5 The utility model is a schematic diagram of a push block of a pumping unit reducer sealing device.

[0028] Legend:

[0029] 1. Sealing box; 2. Speed ​​reducer; 3. Motor; 4. Belt pulley 1; 5. Belt pulley 2; 6. Belt; 7. Connecting block; 8. Fixing block; 9. Mounting shell; 10. Extrusion spring; 11. Limiting block; 12. Clamping rod; 13. Handle; 14. Clamping hole; 15. Top cover; 16. Inspection cover; 17. Mounting box; 18. Reset spring; 19. Limiting plate; 20. Pushing block; 21. Clamping block; 22. Turntable; 23. Pushing rod; 24. Pin rod; 25. Shallow groove; 26. Deep groove; 27. Clamping groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0031] Reference Figure 1 - Figure 2 The utility model provides an embodiment: a pumping unit reducer sealing device, comprising a sealing box 1, the sealing box 1 plays the role of installing the reducer, the sealing box 1 is fixedly connected with a reducer 2 inside, the reducer 2 plays the role of reducing speed, the sealing box 1 is fixedly connected with a motor 3 inside, the motor 3 plays the role of providing power, the output end of the motor 3 is fixedly connected with a belt pulley 1 4, the belt pulley 1 4 plays the role of transmission, the input end of the reducer 2 is fixedly connected with a belt pulley 2 5, the belt pulley 2 5 plays the role of transmission, a belt 6 is sleeved between the belt pulley 1 4 and the belt pulley 2 5, the belt 6 plays the role of transmission, the top of the sealing box 1 is rotatably connected with a top cover 15, the top cover 15 plays the role of sealing, one side of the sealing box 1 is fixedly connected with a connecting block 7, the connecting block 7 plays the role of connecting and fixing, a fastening mechanism is arranged between the sealing box 1 and the top cover 15, the fastening mechanism plays the role of fastening and sealing, and a maintenance mechanism is arranged at the top of the top cover 15, the maintenance mechanism plays the role of maintenance.

[0032] Reference Figure 3 - Figure 5The fastening mechanism includes two fixing blocks 8, which play a role of fixed connection. The ends of the two fixing blocks 8 away from the connecting block 7 are fixedly connected to one side of the top cover 15. The sides of the two fixing blocks 8 away from the top cover 15 are fixedly connected with a mounting shell 9, which plays a role of fixing the internal structure. The interiors of the two mounting shells 9 are fixedly connected with extrusion springs 10, which play a role of providing elastic force. The opposite sides of the two extrusion springs 10 are fixedly connected with limit blocks 11, which play a role of preventing the extrusion springs 10 from falling off. The interiors of the two mounting shells 9 are slidably connected with a clamping rod 12, which plays a role of clamping and fixing. Both ends of the connecting block 7 are provided with clamping holes 14, which play a role of clamping and fixing, and the two clamping rods 12 are clamped with the two clamping holes 14. The inspection mechanism includes two inspection covers 16, which serve the purpose of inspection. The tops of the two inspection covers 16 are rotatably connected to the top of the top cover 15. An installation box 17 is slidably connected between the two inspection covers 16. The installation box 17 serves to fix the internal structure. Two limit plates 19 are slidably connected inside the installation box 17. The limit plates 19 serve to prevent the reset spring 18 from falling off. The opposite sides of the two limit plates 19 are fixedly connected with the reset spring 18. The reset spring 18 serves to provide elastic force. The two reset springs 1 8 are fixedly connected to the opposite sides of the two push blocks 20, and the push blocks 20 play a sliding role. The interior of the installation box 17 is rotatably connected to a turntable 22, and the turntable 22 plays a rotating role. Both sides of the turntable 22 are fixedly connected to clamping blocks 21, and the clamping blocks 21 play a sliding role. The opposite sides of the two push blocks 20 are fixedly connected to pin rods 24, and the pin rods 24 play a clamping and fixing role. The opposite sides of the two inspection covers 16 are provided with clamping grooves 27, and the clamping grooves 27 play a clamping and fixing role. The two pin rods 24 are clamped with the two clamping grooves 27. The two limit blocks 11 are both slidably connected to the inside of the two mounting shells 9, the opposite sides of the two engaging rods 12 are fixedly connected with handles 13, the handles 13 play a role of shifting, the two engaging rods 12 pass through the opposite sides of the two mounting shells 9, the bottom periphery of the top cover 15 is provided with a sealing rubber ring, the opposite sides of the two push blocks 20 are provided with shallow grooves 25, the opposite sides of the two push blocks 20 are provided with deep grooves 26 at the relative positions of the two shallow grooves 25, the outside of the turntable 22 is fixedly connected with a lever 23, the outside of the lever 23 is provided with an anti-slip sleeve, the two push blocks 20 are both slidably connected to the inside of the mounting box 17, and the two pin rods 24 pass through both ends of the mounting box 17.

[0033] Working principle: connect the reducer 2 and the motor 3 and install them in the sealed box 1, cover the top cover 15, push the handle 13 inward, and squeeze the extrusion spring 10 in the installation shell 9 through the locking rod 12 to push the limit block 11 so that the locking rod 12 is locked with the locking hole 14. Release the handle 13 to squeeze the spring 10 to rebound and drive the limit block 11 so that the locking rod 12 is locked with the locking hole 14 to complete the sealing of the sealed box 1.

[0034] When the reducer 2 needs to be inspected, the lever 23 is moved to rotate the turntable 22 so that the block 21 slides from the shallow groove 25 into the deep groove 26. The push block 20 moves relative to drive the pin 24 to release its engagement with the engagement groove 27, and the inspection cover 16 can be opened. After the inspection is completed, the inspection cover 16 is closed and the lever 23 is moved in the opposite direction. When the block 21 moves to the shallow groove 25, the reset spring 28 rebounds to engage it, and at the same time, the pin 29 is locked with the engagement groove 27 to close the inspection cover 16.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealing device for a pumping unit reducer, comprising a sealing box (1), characterized in that: A reducer (2) is fixedly connected to the inside of the sealed box (1), a motor (3) is fixedly connected to the inside of the sealed box (1), a belt pulley 1 (4) is fixedly connected to the output end of the motor (3), a belt pulley 2 (5) is fixedly connected to the input end of the reducer (2), a belt (6) is sleeved between the belt pulley 1 (4) and the belt pulley 2 (5), a top cover (15) is rotatably connected to the top of the sealed box (1), a connecting block (7) is fixedly connected to one side of the sealed box (1), a fastening mechanism is provided between the sealed box (1) and the top cover (15), and a maintenance mechanism is provided at the top of the top cover (15).

2. The sealing device for the oil pump reducer according to claim 1, characterized in that: The fastening mechanism comprises two fixing blocks (8), one end of the two fixing blocks (8) away from the connecting block (7) is fixedly connected to one side of the top cover (15), one side of the two fixing blocks (8) away from the top cover (15) is fixedly connected to a mounting shell (9), the inside of the two mounting shells (9) is fixedly connected to a pressing spring (10), the opposite sides of the two pressing springs (10) are fixedly connected to a limiting block (11), the inside of the two mounting shells (9) is slidably connected to a clamping rod (12), both ends of the connecting block (7) are provided with a clamping hole (14), and the two clamping rods (12) are clamped with the two clamping holes (14).

3. The sealing device for the oil pump reducer according to claim 1, characterized in that: The inspection mechanism comprises two inspection covers (16), the tops of the two inspection covers (16) are rotatably connected to the top of the top cover (15), an installation box (17) is slidably connected between the two inspection covers (16), two limit plates (19) are slidably connected inside the installation box (17), the opposite sides of the two limit plates (19) are fixedly connected to return springs (18), the opposite sides of the two return springs (18) are fixedly connected to push blocks (20), the inside of the installation box (17) is rotatably connected to a rotating disk (22), both sides of the rotating disk (22) are fixedly connected to clamping blocks (21), the opposite sides of the two push blocks (20) are fixedly connected to pin rods (24), the opposite sides of the two inspection covers (16) are provided with clamping grooves (27), and the two pin rods (24) are clamped with the two clamping grooves (27).

4. The sealing device for the reducer of the oil pumping unit according to claim 2, characterized in that: The two limit blocks (11) are slidably connected inside the two mounting shells (9), the two engaging rods (12) are fixedly connected to handles (13) on opposite sides thereof, and the two engaging rods (12) pass through opposite sides of the two mounting shells (9).

5. The sealing device for the oil pump reducer according to claim 1, characterized in that: A sealing rubber ring is provided on the outer periphery of the bottom of the top cover (15).

6. The sealing device for the oil pump reducer according to claim 3, characterized in that: Shallow grooves (25) are provided on opposite sides of the two push blocks (20), and deep grooves (26) are provided on opposite sides of the two push blocks (20) at positions relative to the two shallow grooves (25).

7. The sealing device for the oil pump reducer according to claim 3, characterized in that: The outside of the rotating disk (22) is fixedly connected to a lever (23), and the outside of the lever (23) is provided with an anti-slip sleeve.

8. The sealing device for the oil pump reducer according to claim 3, characterized in that: The two push blocks (20) are both slidably connected to the interior of the installation box (17), and the two pin rods (24) pass through both ends of the installation box (17).

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