A device for dismounting oil seal of pumping unit reduction gearbox

CN224809349UActive Publication Date: 2026-09-29PETROCHINA CO LTD
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Patent Information

Application Number
CN202521925827.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-08
Publication Date
2026-09-29
Estimated Expiration
2035-09-08

AI Technical Summary

Technical Problem

但插入拆卸工具向上撬动抽油机减速箱油封时,拆卸工具容易打滑,也容易从抽油机减速箱油封上滑脱,拆卸难度高且费时费力,这将增加操作人员的劳动强度和影响施工效率

Benefits of technology

(1)本实用新型采用连接机构、滑杆、撞击机构和限位机构相结合的结构形式,其中连接机构能够可拆卸连接在抽油机减速箱油封上,使用本实用新型时,先将连接机构连接在抽油机减速箱油封上,然后用手握住撞击机构往复撞击限位机构,撞击机构会对限位机构产生向上的冲击力,多次撞击后便可将抽油机减速箱油封取出。本实用新型中连接机构能和抽油机减速箱油封紧固的连接在一起,使用时本实用新型不易打滑且不易出现滑脱的情况,可以轻松快捷的将抽油机减速箱油封从抽油机减速箱上拆卸下来,省时省力,可有效降低操作人员的劳动强度和提高施工效率,并且使用本实用新型时,不易划伤抽油机减速箱的轴,也不易伤及操作人员,可有效提高操作的安全性。

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Abstract

The utility model discloses a kind of oil pumping machine reduction gearbox oil seal dismounting device, including the connection mechanism that can be detachably connected on the oil pumping machine reduction gearbox oil seal, perpendicular to the connecting mechanism and detachably connected on the connecting mechanism on the slide bar, the impact mechanism and the limiting mechanism for limiting impact mechanism on the slide bar one end away from the connecting mechanism of detachably connected on the slide bar are slidably connected.The connecting mechanism in the utility model can be connected together with the fastening of oil pumping machine reduction gearbox oil seal, when using, the utility model is not prone to skidding and not prone to slipping, and oil pumping machine reduction gearbox oil seal can be easily and quickly dismounted from oil pumping machine reduction gearbox, save time and effort, can effectively reduce the labor intensity of operator and improve construction efficiency, and when using the utility model, the shaft of oil pumping machine reduction gearbox is not easy to scratch, and operator is not easy to hurt, can effectively improve the safety of operation.The utility model is suitable for use when oil pumping machine reduction gearbox oil seal needs to be dismounted.
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Description

Technical Field

[0001] This utility model relates to a disassembly tool, specifically a disassembly device for the oil seal of a pumping unit gearbox. Background Technology

[0002] As a core component of the pumping unit, the sealing performance of the internal oil in the gearbox directly affects the operational stability and service life of the pumping unit. The oil seal of the gearbox is a critical sealing element used to prevent internal oil leakage. Due to prolonged exposure to high temperature, high pressure, and lubricating oil immersion, it is prone to aging, deformation, or wear, necessitating replacement.

[0003] Currently, when replacing the oil seal of a pumping unit's gearbox, it is usually necessary to use disassembly tools to remove the oil seal from the gearbox. Existing tools include pry bars or flathead screwdrivers. To remove the oil seal, a hammer is first used to strike the end of the pry bar or screwdriver to insert it into the oil seal. Then, the oil seal is slowly pried upwards until it is removed. However, when inserting the disassembly tool and prying upwards, the tool is prone to slipping and easily detaches from the oil seal, making disassembly difficult, time-consuming, and labor-intensive. This increases the operator's workload and affects work efficiency. Furthermore, the slipping and detachment of the disassembly tool can easily scratch the gearbox shaft and injure the operator, seriously affecting operational safety. Summary of the Invention

[0004] To address the aforementioned shortcomings in the existing technology, this utility model aims to provide a device for disassembling the oil seal of a pumping unit gearbox, thereby reducing the labor intensity of operators, improving construction efficiency, and enhancing operational safety.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a pumping unit gearbox oil seal disassembly device, comprising a connecting mechanism detachably connected to the pumping unit gearbox oil seal, a slide rod perpendicular to the connecting mechanism and detachably connected to the connecting mechanism, an impact mechanism slidably connected to the slide rod, and a limiting mechanism detachably connected to the slide rod at the end away from the connecting mechanism for limiting the impact mechanism.

[0006] As a limitation of this utility model, the connecting mechanism includes an arc-shaped plate and at least two fastening members that are detachably connected to the arc-shaped plate and extend to the outside of the arc-shaped plate, wherein the fastening members can be detachably connected to the oil seal of the pumping unit gearbox.

[0007] As a further limitation of this utility model, the connecting mechanism also includes a nut fixed to the top of the arc-shaped plate; the end of the slide rod near the arc-shaped plate is threadedly connected to both the nut and the arc-shaped plate.

[0008] As a further definition of this utility model, the fastening member is a self-drilling screw that is threaded onto the arc-shaped plate and extends to the outside of the arc-shaped plate.

[0009] As another limitation of this utility model, the impact mechanism includes a cylindrical impact block sleeved on the outside of the slide bar that can slide along the length direction of the slide bar.

[0010] As a further limitation of this utility model, the limiting mechanism includes a disc-shaped limiting plate threadedly connected to the slide rod at the end away from the connecting mechanism.

[0011] By adopting the above-mentioned technical solution, the beneficial effects achieved by this utility model compared with the prior art are as follows: (1) This utility model adopts a structure combining a connecting mechanism, a sliding rod, an impact mechanism, and a limiting mechanism. The connecting mechanism can be detachably connected to the oil seal of the pumping unit gearbox. When using this utility model, first connect the connecting mechanism to the oil seal of the pumping unit gearbox, then hold the impact mechanism and repeatedly impact the limiting mechanism. The impact mechanism will generate an upward impact force on the limiting mechanism. After multiple impacts, the oil seal of the pumping unit gearbox can be removed. In this utility model, the connecting mechanism can be tightly connected to the oil seal of the pumping unit gearbox. When using this utility model, it is not easy to slip or detach. It can easily and quickly remove the oil seal of the pumping unit gearbox from the pumping unit gearbox, saving time and effort. It can effectively reduce the labor intensity of operators and improve construction efficiency. Furthermore, when using this utility model, it is not easy to scratch the shaft of the pumping unit gearbox or injure the operators, which can effectively improve the safety of operation.

[0012] (2) This utility model has a reasonable structure, low manufacturing cost, and high structural reliability. Through the combination of an arc-shaped plate and at least two fastening components, the utility model can be securely connected to the oil seal of the pumping unit's gearbox, preventing the connection mechanism from detaching from the oil seal. Furthermore, during use, all fastening components can exert an upward pulling force on the oil seal of the pumping unit's gearbox, making it easier to remove the oil seal. This effectively improves the rationality, reliability, and safety of the present invention. Furthermore, the present invention is composed of conventional components, each of which is readily available and inexpensive, thus reducing the manufacturing cost and facilitating its widespread use.

[0013] (3) In this utility model, a nut is provided on the top of the arc plate, and the slide rod is threaded together with the nut and the arc plate, which can improve the connection strength between the slide rod and the arc plate, thereby effectively improving the safety and reliability of this utility model when in use.

[0014] (4) The fastening component in this utility model is a self-drilling screw. When in use, the self-drilling screw can be easily and quickly screwed onto the oil seal of the pumping unit gearbox, and the self-drilling screw can be fastened together with the oil seal of the pumping unit gearbox.

[0015] (5) The connecting mechanism, sliding rod, impact mechanism and limiting mechanism in this utility model can be detachably connected together. When this utility model is damaged, the damaged part can be replaced separately without replacing the whole, which can reduce the cost of use.

[0016] In summary, this utility model has a reasonable structure, is convenient to use, and is highly practical. The connecting mechanism in this utility model can be securely connected to the oil seal of the pumping unit's gearbox. During use, this utility model is not prone to slippage or detachment, allowing for easy and quick removal of the oil seal from the pumping unit's gearbox. This saves time and effort, effectively reducing the labor intensity of operators and improving construction efficiency. Furthermore, when using this utility model, it is less likely to scratch the shaft of the pumping unit's gearbox or injure operators, effectively improving operational safety. This utility model is suitable for use when it is necessary to remove the oil seal of a pumping unit's gearbox. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a structural schematic diagram from another angle of an embodiment of the present utility model; Figure 3 This is a schematic diagram showing the connection relationship between the connecting mechanism and the oil seal of the pumping unit gearbox during use in an embodiment of this utility model; In the diagram: 1. Arc plate; 2. Fastening component; 3. Nut; 4. Slide rod; 5. Impact mechanism; 6. Limiting mechanism; 7. Oil seal of pumping unit gearbox. Detailed Implementation

[0019] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0020] An embodiment of a device for removing the oil seal of a pumping unit gearbox. like Figure 1 , Figure 2As shown, this embodiment includes a connecting mechanism that can be detachably connected to the oil seal 7 of the pumping unit gearbox, a slide rod 4 that is perpendicular to the connecting mechanism and detachably connected to the connecting mechanism, an impact mechanism 5 that is slidably connected to the slide rod 4, and a limiting mechanism 6 that is detachably connected to the slide rod 4 at the end away from the connecting mechanism for limiting the impact mechanism 5, wherein the slide rod 4 is a round rod.

[0021] The connecting mechanism includes an arc-shaped plate 1, at least two fastening members 2 detachably connected to the arc-shaped plate 1 and extending to the outside of the arc-shaped plate 1, and a nut 3 fixed to the top of the arc-shaped plate 1. The fastening members 2 are detachably connected to the oil seal 7 of the pumping unit gearbox. Specifically, in this embodiment, the arc-shaped plate 1 can be placed entirely on top of the oil seal 7 of the pumping unit gearbox. Two fastening members 2 are provided. The fastening members 2 are drill screws that are threadedly connected to the arc-shaped plate 1 and extending to the outside of the arc-shaped plate 1. The end of the slide rod 4 near the arc-shaped plate 1 passes through the nut 3 and the arc-shaped plate 1 in sequence, and the end of the slide rod 4 near the arc-shaped plate 1 is threadedly connected to both the nut 3 and the arc-shaped plate 1.

[0022] The impact mechanism 5 includes a cylindrical impact block that is sleeved on the outside of the slide rod 4 and can slide along the length of the slide rod 4. The limiting mechanism 6 includes a disc-shaped limiting plate that is threadedly connected to the slide rod 4 at the end away from the connecting mechanism.

[0023] When using this embodiment, as Figure 3 As shown, first place the arc-shaped plate 1 on top of the oil seal 7 of the pumping unit gearbox. At this time, the bottom of the arc-shaped plate 1 is attached to the top of the oil seal 7 of the pumping unit gearbox, and the slide rod 4 is in a vertical position. Then, tighten the two self-drilling screws to secure them to the oil seal 7 of the pumping unit gearbox. Finally, hold the cylindrical impact block and repeatedly strike the disc-shaped limiting plate. The cylindrical impact block will generate an upward impact force on the disc-shaped limiting plate. After multiple impacts, the oil seal 7 of the pumping unit gearbox can be removed from the pumping unit gearbox.

[0024] It should be noted that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for disassembling the oil seal of a pumping unit gearbox, characterized in that: The device includes a connecting mechanism detachably connected to the oil seal of the pumping unit gearbox, a slide bar perpendicular to the connecting mechanism and detachably connected to the connecting mechanism, an impact mechanism slidably connected to the slide bar, and a limiting mechanism detachably connected to the slide bar at one end away from the connecting mechanism for limiting the impact mechanism; the connecting mechanism includes an arc-shaped plate and at least two fastening members detachably connected to the arc-shaped plate and extending to the outside of the arc-shaped plate, wherein the fastening members are detachably connected to the oil seal of the pumping unit gearbox.

2. The oil seal disassembly device for a pumping unit gearbox according to claim 1, characterized in that: The connecting mechanism also includes a nut fixed to the top of the arc-shaped plate; the end of the slide rod near the arc-shaped plate is threadedly connected to both the nut and the arc-shaped plate.

3. The oil seal disassembly device for a pumping unit gearbox according to claim 2, characterized in that: The fastening component is a self-drilling screw that is threaded onto the arc-shaped plate and extends to the outside of the arc-shaped plate.

4. A pumping unit gearbox oil seal disassembly device according to any one of claims 1-3, characterized in that: The impact mechanism includes a cylindrical impact block sleeved on the outside of the slide bar that can slide along the length of the slide bar.

5. The oil seal disassembly device for a pumping unit gearbox according to claim 4, characterized in that: The limiting mechanism includes a disc-shaped limiting plate threadedly connected to the slide rod at the end away from the connecting mechanism.