High-concentration oil medium overflow control valve for motor
By designing a high-concentration oil medium overflow control valve for the motor and using the combination of a valve core assembly and a high-damping spring, the problems of overflow valve clogging and improper overflow caused by high-concentration oil are solved, the stability and sealing of the oil circulation are achieved, and the normal operation requirements of the motor are met.
Patent Information
- Application Number
- CN202422992864.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-12-05
AI Technical Summary
When existing motor devices use high-concentration oil, the traditional overflow valve is easily blocked by the viscous medium, resulting in low overflow efficiency. The high-concentration oil also impacts the moving components, causing improper overflow and unstable oil circulation, affecting the lubrication and heat dissipation effects.
A high-concentration oil medium overflow control valve for motors is designed. The valve core assembly, elastic control assembly and high-damping spring are combined with a plug assembly and a sealing mechanism to achieve stable blocking and overflow control of high-concentration oil. The switching between blocking and overflow is achieved through the deformation of the spring assembly, avoiding the use of electronic devices.
It achieves stable sealing and overflow control of high-concentration oil, ensures the stability of oil circulation, avoids improper overflow and pressure difference fluctuation, meets the normal operation of the motor under full load, and has good stability and sealing.
Smart Images
Figure CN223424662U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an overflow control valve, in particular to a high-concentration oil medium overflow control valve for a motor. Background Art
[0002] Existing motors require oil for lubrication and cooling to meet the demands of long-term operation. High-power motors use oil with a higher concentration and viscosity. When the oil expands due to rising temperatures, without proper external circulation, it can easily overflow, impacting the motor's proper operation.
[0003] To this end, a control valve for overflow is often installed in the motor's oil inlet passage. However, directly applying the traditional overflow valve structure is not adaptable to viscous media and is prone to blockage at the inlet position, reducing overflow efficiency and causing delayed activation of the overflow valve, which can still lead to oil overflow. At the same time, since high-concentration oil can easily impact the moving components involved in the overflow valve's sensing during transportation, it can cause the overflow valve to open prematurely, resulting in improper overflow. This can cause pressure fluctuations in the oil supply pipeline, resulting in intermittent oil circulation, affecting the ultimate lubrication and heat dissipation effects.
[0004] In view of the above-mentioned defects, the designers have actively carried out research and innovation in order to create a high-concentration oil medium overflow control valve for motors, making it more valuable for industrial use. Utility Model Content
[0005] In order to solve the above technical problems, the purpose of the utility model is to provide a high-concentration oil medium overflow control valve for a motor.
[0006] The utility model discloses a high-concentration oil medium overflow control valve for a motor, comprising a valve body, a valve core assembly installed in the valve body, wherein: one end of the valve core assembly is connected to a plug assembly, an elastic control assembly is sleeved on the valve core assembly, a poppet is connected to the elastic control assembly, and an overflow hole is provided on the valve body corresponding to the position of the poppet; the other end of the valve body is connected to a valve seat, and an inlet hole is provided on the valve seat; the elastic control assembly includes a spring seat sleeved on the valve core assembly, a spring assembly is sleeved on the spring seat, the tail end of the spring seat abuts against the poppet, a gasket is further sleeved on the valve core assembly, and the spring assembly is in contact with the gasket; a non-contact gap is provided between the gasket, the spring assembly and the inner wall of the valve body, the spring assembly is a high-damping spring, and the diameter of the high-damping spring is 2 to 4 mm.
[0007] Furthermore, the above-mentioned high-concentration oil medium overflow control valve for the motor is provided with a waistline groove on the valve body, and a bearing step is distributed on the side of the valve body located in the embedded waistline groove, and a sealing gasket is installed on the bearing platform, and a first retaining ring is placed on the sealing gasket; an anti-seismic groove is distributed on the other side of the valve body located in the embedded waistline groove, an auxiliary gasket is provided in the anti-seismic groove, and a second retaining ring is placed on the auxiliary gasket.
[0008] Furthermore, in the above-mentioned high-concentration oil medium overflow control valve for the motor, the plug assembly includes a screw plug connected to the valve core assembly, and a rear end sealing ring is distributed around the contact end surface between the screw plug and the valve core assembly.
[0009] Furthermore, the above-mentioned high-concentration oil medium overflow control valve for the motor, wherein the valve core assembly includes a valve core body, a screw sleeve is provided on the outer sleeve of the valve core body, a coupling groove is provided in the valve body for the position of the screw sleeve, a nut is connected to the tail end of the screw sleeve, a sealing groove is provided on the screw sleeve, a front end sealing ring is distributed in the sealing groove, an extension guide rod is distributed at the front end of the valve core body, and the extension guide rod is inserted into the spring seat.
[0010] Furthermore, the above-mentioned high-concentration oil medium overflow control valve for the motor, wherein the poppet includes a head body, a guide column connected to the spring seat extends from the bottom of the body, a limit block is provided in the spring seat, the guide column contacts the limit block, a blocking protrusion extends from the edge of the head body, the width of the blocking protrusion is greater than the diameter of the overflow hole, and a contact cone is distributed at the front end of the head body; when in a non-overflow state, the contact cone is inserted into the inlet hole in the valve seat for blocking.
[0011] Furthermore, in the above-mentioned high-concentration oil medium overflow control valve for the motor, the valve seat is threadedly connected to the valve body, and the inlet hole is a conical inner concave hole.
[0012] Furthermore, in the above-mentioned high-concentration oil medium overflow control valve for the motor, a slow-release channel is provided in the poppet, and the diameter of the slow-release channel is smaller than the diameter of the inlet hole.
[0013] Furthermore, in the above-mentioned high-concentration oil medium overflow control valve for the motor, the edge of the spring seat is provided with a circular arc chamfer.
[0014] By means of the above solution, the present invention has at least the following advantages:
[0015] 1. A plug assembly is provided to meet the need for liquid tightness inside the valve body under daily use, and no overflow will occur at the joint end.
[0016] 2. By matching the elastic control assembly with the lift head, the plugging in daily state and the overflow switching in high oil pressure state can be realized, and the realization completely depends on the deformation of the spring assembly, without using electronic devices, and the stability of use is better.
[0017] 3. The high damping spring is adopted, the high concentration oil liquid pressure fluctuation used by the motor in daily state can be adapted, the early overflow caused by early retraction does not appear, the normal oil liquid pressure maintaining is not affected, and the normal operation in the motor full load state is met.
[0018] 4. The overall structure is simple, the embedded waist line groove is arranged, the conventional pipeline insertion positioning needs can be met, and the first stop ring and the second stop ring are arranged, and the combined auxiliary sealing can be realized.
[0019] 5. A plurality of sealing mechanisms are adopted, so that the oil liquid does not appear leakage.
[0020] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and the content of the specification can be implemented, the following preferred embodiments of the utility model are described in detail in combination with the drawings. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 It is a structure schematic view of the motor high concentration oil liquid medium overflow control valve.
[0022] The meanings of various signs in the drawings are as follows.
[0023] 1. valve body 2. lift head
[0024] 3. overflow hole 4. valve seat
[0025] 5. inlet hole 6. spring seat
[0026] 7. spring assembly 8. slow release channel
[0027] 9. gasket 10. embedded waist line groove
[0028] 11. sealing gasket 12. first stop ring
[0029] 13. auxiliary gasket 14. second stop ring
[0030] 15. screw plug 16. rear end sealing ring
[0031] 17. valve core body 18. screw sleeve
[0032] 19. nut 20. front end sealing ring DETAILED DESCRIPTION
[0033] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0034] like Figure 1 The high-concentration oil medium overflow control valve for motors includes a valve body 1, in which a valve core assembly is installed. The valve body 1 is different in that one end of the valve core assembly is connected to a plug assembly to prevent abnormal overflow caused by oil impacting the valve core assembly. At the same time, in order to achieve effective overflow control according to changes in oil pressure, an elastic control assembly is sleeved on the valve core assembly. During implementation, in order to cooperate with the elastic control group to achieve switching between conventional blocking and high-pressure release according to different liquid flow conditions, a poppet 2 is connected to the elastic control assembly. In addition, the valve body 1 is provided with an overflow hole 3 corresponding to the position of the poppet 2. In addition, in order to meet the contact with the oil medium during daily use and to modify its current liquid flow pressure, the other end of the valve body 1 is connected to a valve seat 4, on which an inlet hole 5 is opened. Considering the flow characteristics of highly concentrated oil and to minimize the potential impact of its viscosity on the elastic control assembly, the elastic control assembly comprises a spring seat 6 mounted on the valve core assembly. A spring assembly 7 is mounted on the spring seat 6, with the tail end of the spring seat 6 abutting the poppet 2. Furthermore, to ensure stable compression deformation of the spring assembly 7 during compression and minimize bottom-end deflection, a gasket 9 is mounted on the valve core assembly, with the spring assembly 7 in contact with the gasket 9. Furthermore, to prevent friction, wear, and abnormal edge deformation, a non-contact gap is provided between the gasket 9, the spring assembly 7, and the inner wall of the valve body 1. This ensures optimal free travel for the spring assembly 7. Considering the potential for transient high-pressure shocks caused by highly concentrated oil under high pressure, the spring assembly 7 is a high-damping spring with a diameter of 2 to 4 mm to ensure effective deformation and prevent abnormal transient high-pressure release.
[0035] In combination with a preferred embodiment of the present invention, in order to be able to conveniently connect to the preset installation base in the pipeline, the connection and connection of the plug-in position can be achieved through subsequent corresponding clamps, etc., and an embedded waistline groove 10 is provided on the valve body 1. In this way, the waistline groove can be inserted into the pipeline interface and docked and locked by the clamp. At the same time, considering that high-concentration oil will bring a certain impact to the present invention during overflow or normal movement, in order to allow the present invention to be stably installed on the base of the diversion pipeline, a bearing step is distributed on one side of the valve body 1 where the waistline groove 10 is embedded, a sealing gasket 11 is installed on the bearing platform, and a first retaining ring 12 is placed on the sealing gasket 11. In addition, an anti-seismic groove is distributed on the other side of the valve body 1 where the waistline groove 10 is embedded, and an auxiliary gasket 139 is provided in the anti-seismic groove, and a second retaining ring 14 is placed on the auxiliary gasket 139. In this way, if the direct connection method of the shunt pipeline is adopted, the first retaining ring 12 and the second retaining ring 14 can be stably inserted into the shunt pipeline. Even if vibration occurs, they will not loosen and the liquid tightness after the combination is met.
[0036] Furthermore, to achieve stable bottom sealing, the plug assembly includes a screw plug 15 connected to the valve core assembly. A rear sealing ring 16 is distributed around the contact surface between the screw plug 15 and the valve core assembly. This prevents leakage at the plug assembly even if oil seeps into the interior of the valve body 1 during use, ensuring the overall fluid-tight consistency of the pipeline.
[0037] In view of actual implementation, in order to guide the spring seat 6 to move smoothly, facilitate its blocking and guiding under normal circumstances, and facilitate effective reset after the overflow is completed, the valve core assembly used includes a valve core body 17, the valve core body 17 is provided with a threaded sleeve 18, and a coupling groove is provided in the valve body 1 for the position of the threaded sleeve 18. In this way, the position of the threaded sleeve 18 can be fine-tuned during assembly to avoid jamming due to interference fit. At the same time, the tail end of the threaded sleeve 18 is connected to a nut 19 to facilitate auxiliary locking. During implementation, a sealing groove is provided on the threaded sleeve 18, and a front sealing ring 20 is distributed in the sealing groove to further ensure the liquid-tight effect of the coupling end face. At the same time, an extension guide rod is distributed at the front end of the valve core body 17, and the extension guide rod is inserted into the spring seat 6. In this way, the displacement trajectory of the spring seat 6 can be properly guided to avoid improper contact friction with the inner wall of the valve body 1 if it becomes skewed.
[0038] Taking a closer look, the poppet 2 employed comprises a poppet body. Extending from the bottom of the body is a guide post connected to a spring seat 6. A stopper is positioned within the spring seat 6, with the guide post contacting the stopper. This ensures a stable connection between the poppet 2 and the spring seat 6. Furthermore, to accommodate normal sealing needs during standby operation, a sealing bump extends from the edge of the poppet body. The width of the blocking bump is greater than the diameter of the overflow hole 3. Furthermore, a contact cone is positioned at the front end of the poppet body. In the non-overflow state, the contact cone inserts into the inlet hole 5 in the valve seat 4, providing a sealing effect.
[0039] During implementation, the valve seat 4 is threadedly connected to the valve body 1 to facilitate convenient and effective contact engagement. Furthermore, the inlet hole 5 is a conical, internally concave hole. This guides the flow of oil, preventing it from unduly blocking the inlet hole 5 due to slow flow, even in highly concentrated and viscous conditions. This ensures that even under high pressure fluctuations, oil can flow through the inlet hole 5 and then dislodge the poppet 2, facilitating subsequent proper overflow guidance.
[0040] At the same time, the present invention provides a slow-release channel 8 in the poppet 2, and the diameter of the slow-release channel 8 is smaller than the diameter of the inlet hole 5. In this way, when subjected to extreme oil pressure shock, the oil first enters the slow-release channel 8, and then gradually pushes the poppet 2, allowing the poppet 2 to smoothly apply pressure to the spring seat 6. In addition, when resetting, the poppet 2 can also be better retracted to avoid the high-concentration and viscous oil causing an additional pressurized area at the front end of the poppet 2. Furthermore, a circular chamfer can be provided on the edge of the spring seat 6. In this way, the existence of sharp end faces can be avoided. In extreme environments where the spring assembly 7 is rapidly pressurized, the sharp edge of the spring seat 6 will not impact the gasket 9, avoiding abnormal deformation of the gasket 9, and better ensuring that the poppet 2 is in a better sealing state after the spring is reset.
[0041] The working principle of this utility model is as follows:
[0042] When the oil is at normal pressure, it contacts the poppet 2 after passing through the inlet hole 5. At this time, since the oil is at a preset normal oil pressure state, the poppet 2 blocks the inlet hole 5 and the overflow hole 3 at the same time.
[0043] When the oil pressure rises abnormally, if there is a momentary high pressure, it first flows into the slow-release channel 8 before pushing the poppet 2. At this point, as the oil continues to flow through the inlet hole 5, the poppet 2 is compressed against the elastic stress of the spring assembly 7. The overflow hole 3 then connects to the inlet hole 5, allowing the oil to overflow.
[0044] During use, the poppet head 2 is always impacted by the high-concentration oil liquid when the oil liquid normally flows, and the poppet head 2 has almost zero moving stroke in the non-overflow oil pressure state due to the high-damping spring, so that unnecessary overflow is avoided, and the oil liquid in the pipeline is always in a reasonable preset oil pressure state.
[0045] As can be seen from the above description and in combination with the drawings, the utility model has the following advantages:
[0046] 1. The plug assembly is provided, the liquid-tight requirement of the valve body in the daily use state is met, and the overflow of the combined end does not occur.
[0047] 2. The elastic control assembly and the poppet head are matched, the plugging in the daily state and the overflow switching in the high oil pressure state are realized, the realization is completely dependent on the deformation of the spring assembly, electronic devices are not needed, and the stability of use is better.
[0048] 3. The high-damping spring is adopted, the high-concentration oil liquid pressure fluctuation of the motor in the daily state is adapted, the overflow caused by the early retraction is avoided, the normal oil liquid pressure is not affected, the normal operation of the motor in the full load state is met.
[0049] 4. The overall structure is simple, the embedded waist line groove is provided, the conventional pipeline insertion positioning requirement is met, meanwhile, the first stop ring and the second stop ring are provided, and the auxiliary sealing after combination is realized.
[0050] 5. The plurality of sealing mechanisms are adopted, and the oil liquid is ensured not to leak.
[0051] In addition, the indication direction or position relationship described in the utility model is based on the direction or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or structure must have a specific direction or be operated in a specific direction, so it cannot be understood as a limitation on the utility model.
[0052] The preferred embodiments described above are only preferred embodiments of the utility model, and are not used to limit the utility model, and it should be pointed out that, for ordinary skilled persons in the technical field, on the premise that the technical principles of the utility model are not deviated, a plurality of improvements and modifications can be made, and the improvements and modifications should also be regarded as the protection range of the utility model.
Claims
1. A high-concentration oil medium overflow control valve for a motor, comprising a valve body, a valve core assembly installed in the valve body, and characterized by: One end of the valve core assembly is connected to a plug assembly, and an elastic control assembly is sleeved on the valve core assembly, and a poppet is connected to the elastic control assembly, and an overflow hole is provided on the valve body corresponding to the position of the poppet; the other end of the valve body is connected to a valve seat, and an inlet hole is provided on the valve seat; the elastic control assembly includes a spring seat sleeved on the valve core assembly, and a spring assembly is sleeved on the spring seat, and the tail end of the spring seat abuts against the poppet, and a gasket is also sleeved on the valve core assembly, and the spring assembly is in contact with the gasket; a non-contact gap is provided between the gasket, the spring assembly and the inner wall of the valve body, and the spring assembly is a high-damping spring, and the diameter of the high-damping spring is 2 to 4 mm.
2. The high-concentration oil medium overflow control valve for motor according to claim 1, characterized in that: The valve body is provided with an embedded waistline groove, and a load-bearing step is distributed on one side of the valve body located in the embedded waistline groove. A sealing gasket is installed on the load-bearing platform, and a first retaining ring is placed on the sealing gasket; the valve body is provided with an anti-seismic groove on the other side of the embedded waistline groove, an auxiliary gasket is provided in the anti-seismic groove, and a second retaining ring is placed on the auxiliary gasket.
3. The high-concentration oil medium overflow control valve for motor according to claim 1, characterized in that: The plug assembly includes a screw plug connected to the valve core assembly, and a rear end sealing ring is distributed on the periphery of the contact end surface of the screw plug and the valve core assembly.
4. The high-concentration oil medium overflow control valve for motor according to claim 1, characterized in that: The valve core assembly includes a valve core body, a threaded sleeve is provided on the outer sleeve of the valve core body, a coupling groove is provided in the valve body for the position of the threaded sleeve, a nut is connected to the tail end of the threaded sleeve, a sealing groove is provided on the threaded sleeve, a front end sealing ring is distributed in the sealing groove, an extension guide rod is distributed at the front end of the valve core body, and the extension guide rod is inserted into the spring seat.
5. The high-concentration oil medium overflow control valve for motor according to claim 1, characterized in that: The poppet head includes a head body, a guide column connected to the spring seat extending from the bottom of the body, a limit block provided in the spring seat, the guide column contacts the limit block, a blocking protrusion extends from the edge of the head body, the width of the blocking protrusion is greater than the diameter of the overflow hole, and a contact cone is distributed at the front end of the head body; when in a non-overflow state, the contact cone is inserted into the inlet hole in the valve seat for blocking.
6. The high-concentration oil medium overflow control valve for motor according to claim 1, characterized in that: The valve seat is threadedly connected to the valve body, and the inlet hole is a conical inner concave hole.
7. The high-concentration oil medium overflow control valve for motor according to claim 1, characterized in that: A slow-release channel is provided in the poppet, and the diameter of the slow-release channel is smaller than the diameter of the inlet hole.
8. The high-concentration oil medium overflow control valve for motor according to claim 1, characterized in that: The edge of the spring seat is provided with a circular arc chamfer.