Automatic oiling mechanism for valve stem taper face
By designing an automatic oiling mechanism for the valve stem conical surface, the automatic oiling of the valve stem is achieved using moving components, gripping components, and lifting devices, which solves the problems of valve stem switching life and airtightness, and improves oiling efficiency and uniformity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SANHUA CO LTD (JIANGXI) AUTOMATIC CONTROL COMPONENTS
- Filing Date
- 2025-06-05
- Publication Date
- 2026-06-12
AI Technical Summary
In the existing technology, the valve stem switching life is not up to standard, the valve core airtightness is not up to standard, and manual oiling makes it difficult to ensure that the oiling area of each valve stem cone is consistent, resulting in slow oiling efficiency.
Design an automatic oiling mechanism for valve stem conical surface, including a moving component, a gripping component, a storage component, and a lifting device, to achieve automated oiling of valve stem through mechanization, ensuring consistency in oiling depth and area each time.
It enables automated oiling of the valve stem cone surface, improving oiling efficiency, ensuring consistent oiling depth and area each time, and avoiding the unevenness of manual oiling.
Smart Images

Figure CN224346203U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of valve body processing technology, and more specifically, to an automatic oiling mechanism for the conical surface of a valve stem. Background Technology
[0002] The valve stem is an important component of a valve. It connects the actuator (such as a handwheel, electric actuator, or pneumatic actuator) and the closing element (such as a valve disc, ball, or butterfly plate) to transmit opening and closing forces and motion, thereby realizing the opening and closing of the valve.
[0003] Market feedback indicates that the valve stem's switching lifespan and the valve core's airtightness are substandard, necessitating oiling the valve stem's conical surface. Currently, this is done manually using an oil brush. However, manual oiling makes it difficult to ensure adequate oiling coverage on every conical surface, resulting in slow oiling efficiency. Utility Model Content
[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide an oiling mechanism that can automatically apply oil to the conical surface of valve stems and ensure that the oiling area of the conical surface of each valve stem is consistent.
[0005] To solve the above problems, the present invention adopts the following technical solution.
[0006] An automatic oiling mechanism for valve stem conical surfaces includes:
[0007] A movable component having a movable part that can be moved horizontally;
[0008] A gripping component, mounted on the moving component with its output end facing downwards, is used to grip the valve stem;
[0009] A storage component, disposed below the gripper, is used to store oil; the storage component has an opening at its top; and
[0010] A lifting device, the output end of which is connected to the storage unit, is used to drive the storage unit to rise so that the valve body on the gripping member can enter the storage unit through the opening for oiling; and to drive the storage unit to reset.
[0011] Compared with the prior art, the present invention has at least the following beneficial effects:
[0012] The gripper grasps the valve stem, and the moving component then moves the gripper to a position directly above the storage unit. The lifting device then raises the storage unit, allowing the valve stem to be inserted into the storage unit through the opening for oiling. The lifting device then lowers the storage unit back to its original position, and the moving component moves the gripper to another location. This process is repeated to achieve automatic oiling with higher efficiency. Because the lifting device is mechanical, it ensures that the storage unit rises to a consistent height each time, thus ensuring that the depth and area of oiling the valve stem are consistent each time.
[0013] Preferably, the storage device contains an elastic adsorption element, which is used to adsorb oil and coat the oil onto the valve stem cone surface.
[0014] Preferably, the elastic adsorption element is a sponge.
[0015] Preferably, a material receiving station, an oiling station, and an assembly station are sequentially and spaced apart between the gripping member and the storage member along the horizontal movement direction of the moving member; the material receiving station is used to pre-store the valve stem, and the gripping member grips the valve stem at the material receiving station; the oiling station corresponds to the storage member and is used to provide a position for oiling the conical surface of the valve stem; the assembly station is used to receive the oiled valve stem.
[0016] Preferably, the moving component further includes a crossbeam and a horizontal drive member; the moving component is movably disposed on the crossbeam, and the output end of the horizontal drive member is connected to the moving component to drive the moving component to move horizontally.
[0017] Preferably, the moving component further includes a telescopic member disposed between the moving member and the gripping member, the telescopic member being used to drive the gripping member to move up and down.
[0018] Preferably, the gripping component is a finger cylinder.
[0019] Preferably, the lifting device is a straight cylinder, and the output end of the straight cylinder is vertically connected to the storage device. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the valve stem of this utility model before it is coated with oil;
[0021] Figure 2 This is a schematic diagram showing the valve stem of this utility model inserted into the storage component.
[0022] Explanation of the labels in the diagram:
[0023] 1. Moving component; 11. Moving part; 12. Crossbeam; 2. Gripping part; 3. Valve stem; 4. Storage part; 41. Opening; 42. Elastic suction part; 5. Lifter; 6. Incoming material station; 7. Assembly station. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] refer to Figure 1-2 An automatic valve stem conical surface oiling mechanism includes: a moving component 1, a gripping component 2, a storage component 4, and a lifting device 5. The moving component 1 has a horizontally movable component 11; the gripping component 2 is disposed on the moving component 11 with its output end facing downward, for gripping a valve stem 3; the storage component 4 is disposed below the gripping component 2 for storing oil; the top of the storage component 4 has an opening 41; the output end of the lifting device 5 is connected to the storage component 4, for driving the storage component 4 to rise so that the valve body on the gripping component 2 enters the storage component 4 through the opening 41 for oiling; and for lowering the storage component 4 to reset.
[0026] Understandably, the horizontal movement of the moving part 11 can be achieved through a sliding engagement of guide rails and guide wheels, or a sliding engagement of a groove and a slider, etc., but is not limited to these. The gripping part 2 is a component that grips the valve stem 3, such as a finger cylinder, suction cup, electromagnetic clamp, etc., but is not limited to these. The storage part 4 is a component that stores oil, such as a tank structure or box structure with the opening 41 facing upwards, etc., but is not limited to these. The lifting device 5 can be installed on the ground or on other base components. The lifting device 5 can be a straight cylinder, an electric push rod, a scissor lift, etc., but is not limited to these.
[0027] With this setup, the gripper 2 grips the valve stem 3, and then the moving part 11 drives the gripper 2 to move the valve stem 3 directly above the storage unit 4. The lifting device 5 then lifts the storage unit 4, allowing the valve stem 3 to be inserted into the storage unit 4 through the opening 41 for oiling. Then, the lifting device 5 lowers the storage unit 4 back to its original position, and the moving part 11 drives the gripper 2 to move the valve stem 3 to another location. This process is repeated to achieve automatic oiling with higher efficiency. Since the lifting device 5 is mechanical, it ensures that the height of the storage unit 4 is consistent each time, thus ensuring that the depth and area of oiling the valve stem 3 are consistent each time.
[0028] In some embodiments, the storage unit 4 stores an elastic adsorption member 42, which is used to adsorb oil and apply it to the conical surface of the valve stem 3. It is understood that the elastic adsorption member 42 can be made of polyurethane foam, fiber cloth, cotton, etc., but is not limited to these. A sponge is preferred, as it has a strong oil absorption capacity without losing its elasticity. Thus, when applying oil, the valve stem 3 is inserted into the storage unit 4, and the conical surface of the valve stem 3 can press against the elastic adsorption member 42, which then applies the oil to the conical surface of the valve stem 3 without leaving excessive residue. Furthermore, the elastic adsorption member 42 can effectively absorb and stabilize the oil, preventing oil from splashing when the storage unit 4 moves.
[0029] In some embodiments, between the gripper 2 and the storage unit 4, a material receiving station 6, an oiling station, and an assembly station 7 are sequentially and spaced apart along the horizontal movement direction of the moving member 11; the material receiving station 6 is used to pre-store the valve stem 3, and the gripper 2 grips the valve stem 3 at the material receiving station 6; the oiling station corresponds to the storage unit 4 and is used to provide a position for oiling the conical surface of the valve stem 3; the assembly station 7 is used to receive the oiled valve stem 3.
[0030] It is understandable that the incoming material station 6 can be a fixture, conveyor belt, or alignment jig for storing and positioning the valve stem 3, but is not limited to these. The oiling station refers to the area between the lifting device 5 and the storage component 4. The assembly station 7 can also be a fixture, conveyor belt for storing and positioning the valve stem 3, or a station for assembling the valve stem 3, but is not limited to these.
[0031] With this setup, the moving component 11 drives the gripper 2 to the material receiving station 6, where the gripper 2 grips the valve stem 3. Then, the moving component 11 drives the gripper 2 to move the valve stem 3 to the oiling station, specifically above the opening 41 of the storage unit 4. The storage unit 4 then rises, allowing the valve stem 3 to penetrate and be oiled. After oiling, the storage unit 4 lowers to its original position. Finally, the moving component 11 drives the gripper 2 to move the oiled valve stem 3 to the assembly station 7, where the gripper 2 releases. This process is repeated, allowing for the orderly and automated completion of material handling, oiling, and unloading.
[0032] In some embodiments, the moving assembly 1 further includes a crossbeam 12 and a horizontal drive member; the moving member 11 is movably mounted on the crossbeam 12, and the output end of the horizontal drive member is connected to the moving member 11 to drive the moving member 11 to move horizontally. It is understood that the crossbeam 12 is the base component of the entire moving assembly 1, and can be, for example, a frame structure or a horizontal plate structure, but is not limited thereto. The horizontal drive member can employ a cylinder-driven structure, a screw-driven transmission structure, a motor-driven guide wheel rolling structure, etc., but is not limited thereto. The structure of the horizontal drive member and how it cooperates with the moving member are known to those skilled in the art, and therefore are not shown in the accompanying drawings. Thus, the horizontal drive member can drive the moving member 11 to move, thereby driving the gripping member 2 to move, thereby achieving adjustment and movement of the valve stem 3 at any position.
[0033] In some embodiments, the moving assembly 1 further includes a telescopic member disposed between the moving member 11 and the gripping member 2, the telescopic member being used to drive the gripping member 2 to move up and down. Here, the telescopic member is known to those skilled in the art and is therefore not shown in the accompanying drawings. Specifically, the telescopic member can be a cylinder or an electric push rod, etc. Thus, the telescopic member enables the gripping member 2 to move up and down, facilitating the gripping of valve stems 3 at different heights. Simultaneously, it can also drive the gripping member 2, and consequently the valve stem 3, to move downwards into the storage member 4 for oiling.
[0034] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. An automatic oiling mechanism for the conical surface of a valve stem, characterized in that, include: A movable component having a movable part that can be moved horizontally; A gripping component, mounted on the moving component with its output end facing downwards, is used to grip the valve stem; A storage component, located below the gripping component, is used to store oil; the top of the storage component has an opening; as well as A lifting device, the output end of which is connected to the storage unit, is used to drive the storage unit to rise so that the valve body on the gripping member can enter the storage unit through the opening for oiling. The descent causes the storage device to reset.
2. The automatic oiling mechanism for the valve stem conical surface according to claim 1, characterized in that, The storage device contains an elastic adsorption element, which is used to adsorb oil and coat the oil onto the valve stem cone surface.
3. The automatic oiling mechanism for the valve stem conical surface according to claim 2, characterized in that, The elastic adsorption element is a sponge.
4. The automatic oiling mechanism for the valve stem conical surface according to claim 1, characterized in that, Between the gripper and the storage unit, along the horizontal movement direction of the moving unit, there are sequentially spaced arrival stations, oiling stations, and assembly stations; the arrival station is used to pre-store valve stems, and the gripper grips the valve stems at the arrival station; the oiling station corresponds to the storage unit and is used to provide a position for oiling the conical surface of the valve stem; the assembly station is used to receive the oiled valve stems.
5. The automatic oiling mechanism for the valve stem conical surface according to claim 1, characterized in that, The moving component also includes a crossbeam and a horizontal drive component; the moving component is movably mounted on the crossbeam, and the output end of the horizontal drive component is connected to the moving component to drive the moving component to move horizontally.
6. The automatic oiling mechanism for the valve stem conical surface according to claim 5, characterized in that, The moving component also includes a telescopic member disposed between the moving member and the gripping member, the telescopic member being used to drive the gripping member to move up and down.
7. The automatic oiling mechanism for the valve stem conical surface according to claim 1, characterized in that, The gripper is a finger cylinder.
8. The automatic oiling mechanism for the valve stem conical surface according to claim 1, characterized in that, The lifting device is a straight cylinder, and the output end of the straight cylinder is vertically connected to the storage device.