Self-control overflow valve for lubrication

Abstract

The utility model provides a lubricating self-control overflow valve which comprises a valve body, the valve body is provided with an upper inlet connecting flange and an outlet connecting flange, an L-shaped main channel is arranged between the inlet connecting flange and the outlet connecting flange, an overflow channel is arranged perpendicular to the L-shaped main channel, and the overflow channel is connected with the outlet connecting flange. The valve body is provided with an overflow port flange communicated with the overflow channel, an overflow pressure adjusting assembly is arranged in the overflow channel, the valve body is provided with a pressure sensor and a temperature sensor, the valve body is provided with a pressure detection channel allowing the detection end of the pressure sensor to be inserted therein, and the valve body is provided with an overflow port flange communicated with the overflow channel. The valve body is provided with a temperature detection channel allowing the temperature sensor to be inserted therein, and the temperature detection channel is communicated with the pressure detection channel. According to the utility model, the temperature and the pressure in the valve body can be stably measured, and the overflow pressure in the overflow channel can be adjusted, thereby adapting to various overflow pressures.

Description

TECHNICAL FIELD

[0001] The utility model relates to engineering equipment technical field especially relates to a lubrication self -made overflow valve. BACKGROUND

[0002] The overflow valve is a kind of lubrication pressure control valve, mainly plays the unloading and safety protection of constant pressure overflow pressure stabilizing system in lubricating equipment. The overflow valve currently commonly used in industrial lubrication field is direct-acting overflow valve and pilot overflow valve. Direct-acting overflow valve is used for low pressure, and pilot overflow valve is used for medium and high pressure.

[0003] The direct-acting overflow valve currently commonly used is mainly used in the flow range of 60-100L / min. For the flow range of 300-500L / min of large-flow lubricating system, pilot overflow valve is usually used. The pilot overflow valve has complex structure and large size, and is inconvenient to use for compact lubricating system. And because temperature and pressure change during the overflow process of overflow valve, heat and pressure accumulation will occur when lubricating oil passes through overflow valve for a long time, which will affect the connection position of overflow valve, so it is necessary to monitor the pressure and temperature inside overflow valve in real time. SUMMARY

[0004] The utility model aims at at least one of the technical problems in the related art to some extent.

[0005] To achieve the above purpose, the utility model provides a kind of lubrication self -made overflow valve, including valve body, the valve body is provided with upper inlet connection flange and outlet connection flange, L-shaped main channel is arranged between the inlet connection flange and the outlet connection flange, overflow channel is arranged perpendicular to the L-shaped main channel, overflow port flange is arranged in the valve body and is communicated with the overflow channel, overflow pressure adjustment assembly is arranged in the overflow channel, pressure sensor and temperature sensor are arranged on the valve body, pressure detection channel is arranged on the valve body for the detection end of the pressure sensor to insert, temperature detection channel is arranged on the valve body for the temperature sensor to insert, and the temperature detection channel is communicated with the pressure detection channel.

[0006] The utility model can measure the temperature and pressure in the valve body stably by setting temperature sensor and pressure sensor on the valve body of overflow valve, and the overflow pressure in overflow channel can be adjusted under the action of overflow pressure adjustment assembly, so as to adapt to various overflow pressures.

[0007] Optionally, the overflow pressure adjustment assembly includes overflow valve spool, pressure regulating spring, adjusting part and adjusting channel communicated with the overflow channel;

[0008] The pressure regulating spring is arranged between the overflow valve spool and the adjusting member, and the adjusting member and the overflow valve spool both extend into the pressure spring and are provided with limiting fixed blocks;

[0009] The adjusting channel is arranged opposite to the main channel, the overflow valve spool is slidably connected with the overflow channel, the adjusting member is movably connected with the adjusting channel, and the adjusting member is coaxially arranged with the overflow valve spool.

[0010] Further, a steel wire sleeve is fixedly arranged on the inner wall of the adjusting channel, the adjusting member is threadedly connected with the fixed sleeve, and the adjusting member is provided with an internal hexagonal groove hole in a direction away from the main channel.

[0011] Further, a screw plug is arranged at one end of the adjusting member away from the pressure regulating spring, and the screw plug is threadedly connected with the steel wire sleeve.

[0012] Further, a gasket is arranged between the screw plug and the valve body.

[0013] Further, the overflow valve spool is provided with a containing cavity on a side facing the main channel, and a plurality of overflow holes are formed in a side wall of the containing cavity close to one end of the pressure regulating spring.

[0014] Further, the overflow channel comprises a first channel, a second channel and a third channel arranged in sequence and in communication;

[0015] The first channel is arranged in communication with the main channel;

[0016] The second channel is arranged in communication with the first channel and the adjusting channel, and an inner diameter of the second channel is greater than an inner diameter of the first channel;

[0017] The third channel is arranged in communication with the overflow port flange and the second channel.

[0018] Further, the overflow valve spool comprises a power section and a clamping section arranged in an integral connection, the power section is slidably connected with the overflow channel, the containing cavity is arranged in the power section, and the overflow holes are arranged on a side wall of the power section; the clamping section is arranged in the second channel, the clamping section comprises a clamping inclined surface integrally connected with the power section, a maximum diameter of the clamping inclined surface is greater than a diameter of the power section, and the clamping inclined surface is connected to the power section from the maximum diameter end; and the pressure regulating spring is arranged at one end of the clamping section away from the power section.

[0019] Further, a sealing groove is arranged at each of the inlet connecting flange, the outlet connecting flange and the overflow port flange, and an O-shaped sealing ring is arranged in the sealing groove.

[0020] Further, a plurality of fixing bolts are arranged on the valve body.

[0021] Some of the aspects and advantages of the present application will be presented in the following description, some will become apparent from the description, or will be learned from the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0022] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the accompanying drawings, wherein:

[0023] Fig. 1 Fig. 1 is a schematic diagram of the overall structure of a lubricating self-made overflow valve according to the present application;

[0024] Fig. 2 Fig. 2 is a schematic diagram of the cross-sectional structure of a lubricating self-made overflow valve according to the present application.

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 1, valve body; 11, inlet flange; 12, outlet flange; 13, main channel; 14, overflow port flange; 3, overflow channel; 31, first channel; 32, second channel; 33, third channel; 4, overflow pressure adjusting assembly; 41, overflow valve spool; 411, accommodating cavity; 412, overflow hole; 413, power section; 414, clamping section; 415, clamping inclined surface; 42, pressure adjusting spring; 43, adjusting piece; 431, internal hexagonal groove; 44, adjusting channel; 45, limiting block; 46, steel wire sleeve; 47, screw plug; 5, pressure sensor; 51, pressure detection channel; 6, temperature sensor; 61, temperature detection channel; 7, gasket; 8, sealing groove; 81, O-shaped sealing ring; 9, fixing bolt. DETAILED DESCRIPTION

[0027] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0028] The present application provides a kind of lubricating self-made overflow valve, the following with reference to Figs. 1-2 Detailed description.

[0029] The utility model discloses a lubricate self -made overflow valve, including the valve body 1, be provided with the upper entrance connection flange and the outlet connection flange, be provided with the L shape main channel 13 between the entrance connection flange and the outlet connection flange, be provided with the overflow channel 3 perpendicular to L shape main channel 13, be provided with the overflow port flange 14 of overflow channel 3 communication arrangement on the valve body 1, be provided with overflow pressure adjustment assembly 4 in overflow channel 3, be provided with pressure sensor 5 and temperature sensor 6 on the valve body 1, be provided with the pressure detection channel 51 of the detection end insertion of pressure sensor 5 on the valve body 1, be provided with the temperature detection channel 61 of the insertion of the temperature sensor 6 on the valve body 1, and the temperature detection channel 61 is provided with pressure detection channel 51 communication arrangement.

[0030] The utility model discloses a lubricate self -made overflow valve, including the valve body 1, be provided with the upper entrance connection flange and the outlet connection flange, be provided with the L shape main channel 13 between the entrance connection flange and the outlet connection flange, be provided with the overflow channel 3 perpendicular to L shape main channel 13, be provided with the overflow port flange 14 of overflow channel 3 communication arrangement on the valve body 1, be provided with overflow pressure adjustment assembly 4 in overflow channel 3, be provided with pressure sensor 5 and temperature sensor 6 on the valve body 1, be provided with the pressure detection channel 51 of the detection end insertion of pressure sensor 5 on the valve body 1, be provided with the temperature detection channel 61 of the insertion of the temperature sensor 6 on the valve body 1, and the temperature detection channel 61 is provided with pressure detection channel 51 communication arrangement.

[0031] In an embodiment, the overflow pressure adjustment assembly 4 includes an overflow valve spool 41, a pressure adjusting spring 42, an adjusting member 43, and an adjusting channel 44 in communication with the overflow channel 3.

[0032] The pressure adjusting spring 42 is arranged between the overflow valve spool 41 and the adjusting member 43, and the adjusting member 43 and the overflow valve spool 41 are both provided with a limiting block extending into the pressure spring.

[0033] The adjusting channel 44 is arranged opposite to the main channel 13, the overflow valve spool 41 is in sliding connection with the overflow channel 3, the adjusting member 43 is in movable connection with the adjusting channel 44, and the adjusting member 43 is coaxially arranged with the overflow valve spool 41.

[0034] The overflow valve spool 41 is arranged to slide in the overflow channel 3, when the liquid pressure in the main channel 13 is normal, the overflow valve spool 41 is in the overflow channel 3 to prevent the liquid from flowing out of the overflow port flange 14 along the overflow channel 3; the pressure adjusting spring 42 can adjust the resistance pressure provided by the overflow valve spool 41, so that the overflow valve spool 41 can be adjusted to meet different overflow pressure requirements.

[0035] When more overflow pressure is needed, the adjusting member moves in the adjusting channel 44 towards the overflow valve spool 41, the pressure adjusting spring 42 is compressed, at this time, the elastic force provided by the pressure adjusting spring 42 to the overflow valve spool 41 increases, and the overflow valve spool 41 can provide more overflow pressure to the liquid in the overflow channel 3, thereby increasing the overflow pressure threshold.

[0036] When it is needed to provide less overflow pressure, the adjusting member moves in the adjusting channel 44 towards the direction away from the overflow valve spool 41, the pressure adjusting spring recovers the deformation, at this time the elastic force provided by the pressure adjusting spring 42 to the overflow valve spool 41 is reduced, the overflow valve spool 41 can provide less overflow pressure to the liquid in the overflow channel 3, thereby reducing the overflow pressure threshold.

[0037] In an embodiment, a steel wire screw sleeve 46 is fixedly arranged on the inner wall of the adjusting channel 44, the adjusting member 43 is threadedly connected with the fixed screw sleeve, and the adjusting member 43 is provided with an inner hexagonal groove hole 431 towards the direction away from the main channel 13. The thread connection can adjust the pressure adjusting spring 42, and after the adjustment is completed, the self-locking between the adjusting member 43 and the fixed screw sleeve is formed due to the thread connection, thereby avoiding the situation that the adjusting member 43 is pushed under the action of the pressure adjusting spring 42. The inner hexagonal groove hole 431 can facilitate the adjustment of the adjusting member 43, and when it is needed to adjust, a hexagonal column is inserted into the inner hexagonal groove hole 431, and the rotation control of the adjusting member 43 can be realized by rotating the hexagonal column.

[0038] In an embodiment, a screw plug 47 is arranged at one end of the adjusting member 43 away from the pressure adjusting spring 42, and the screw plug 47 is threadedly connected with the steel wire screw sleeve 46. The screw plug 47 can block the adjusting channel 44, avoid the external sundries from hindering the adjusting member 43 in the overflow channel 3, and prevent the situation that the adjusting member 43 is directly pushed out of the overflow channel 3 due to the self-locking failure.

[0039] In an embodiment, a gasket 7 is arranged between the screw plug 47 and the valve body 1. After the screw plug 47 is completely screwed into the adjusting channel 44, the gasket 7 can disperse the pressure between the screw plug 47 and the valve body 1, and can effectively protect the screw plug 47 and the valve body 1.

[0040] In an embodiment, the overflow valve spool 41 is provided with a containing cavity 411 towards the main channel 13, and a plurality of overflow holes 412 are arranged on the side wall of the containing cavity 411 close to one end of the pressure adjusting spring 42. The containing cavity 411 can facilitate the liquid to flow into the overflow valve spool 41, and after the overflow valve spool 41 is pushed by the liquid, the overflow liquid flowing into the overflow valve spool 41 can flow out from the overflow holes 412, flow from the overflow channel 3 to the overflow port flange 14, and thereby complete the overflow action.

[0041] In an embodiment, the overflow channel 3 comprises a first channel 31, a second channel 32 and a third channel 33 which are sequentially and communicatively arranged;

[0042] The first channel 31 is communicatively arranged with the main channel 13;

[0043] The second channel 32 is in communication with the first channel 31 and the adjusting channel 44, and the inner diameter of the second channel 32 is greater than that of the first channel 31;

[0044] The third channel 33 is in communication with the overflow port flange 14 and the second channel 32.

[0045] The overflow channel 3 is in an L shape as a whole, the first channel 31 and the second channel 32 are coaxially arranged, and the third channel 33 is arranged perpendicularly to the second channel 32. When the overflow valve is pushed into the second channel 32, the overflow liquid can flow out of the overflow hole 412 into the second channel 32. After the overflow liquid flows into the second channel 32, it can flow along the third channel 33 to the position of the overflow port flange 14. The overflow port flange 14 can be in communication with the liquid tank, so that the overflow liquid flows back into the liquid tank.

[0046] The diameter of the second channel 32 being greater than that of the first channel 31 can provide sufficient space for the overflow liquid to flow out when the overflow hole 412 moves to the second channel 32, and it is not necessary to align the overflow hole 412 with the third channel 33 to complete the overflow action.

[0047] In an embodiment, the overflow valve spool 41 comprises a power section 413 and a clamping section 414 which are integrally connected. The power section 413 is in sliding connection with the overflow channel 3, and the containing cavity 411 is arranged in the power section 413. The overflow hole 412 is arranged on the side wall of the power section 413. The clamping section 414 is arranged in the second channel 32, and the clamping section 414 comprises a clamping inclined surface 415 which is integrally connected with the power section 413. The maximum diameter of the clamping inclined surface 415 is greater than that of the power section 413, and the clamping inclined surface 415 is connected to the power section 413 from the end with the maximum diameter. The pressure adjusting spring 42 is arranged at the end of the clamping section 414 away from the power section 413.

[0048] The power section 413 can provide power for the movement of the overflow valve spool 41 under the action of the overflow liquid. The arrangement of the clamping inclined surface 415 ensures that the clamping section 414 always remains in the second channel 32, thereby avoiding the overflow valve spool 41 moving along the overflow channel 3 into the main channel 13. When the elastic force of the pressure adjusting spring 42 changes, the elastic force acts on the clamping section 414, thereby acting on the entire overflow valve spool 41, and the adjustment of the overflow pressure threshold is completed.

[0049] In an embodiment, a sealing groove 8 is arranged at each of the inlet connection flange, the outlet connection flange and the overflow port flange 14, and an O-shaped sealing ring 81 is arranged in the sealing groove 8. The arrangement of the sealing groove 8 and the O-shaped sealing ring 81 can effectively realize the sealing connection of each flange, and reduce the probability of liquid flowing out of the flange.

[0050] In one embodiment, a plurality of fixing bolts 9 are arranged on the valve body 1. The plurality of fixing bolts 9 can be arranged to fix the valve body 1 on other components or walls, thereby completing the fixed installation of the valve body 1.

[0051] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0052] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0053] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0054] In the present application, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0055] In the present application, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that the specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the features of different embodiments or examples described in the present application and the features of different embodiments or examples within the scope of the present application without contradiction.

[0056] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A lubricated self-acting relief valve characterized by, The utility model provides a valve body is provided with upper inlet connecting flange and outlet connecting flan, be provided with L -shaped main channel between inlet connecting flange and outlet connecting flan, be provided with overflow channel perpendicular to L -shaped main channel, be provided with overflow port flange of overflow channel intercommunication on valve body, be provided with overflow pressure adjusting assembly in overflow channel, be provided with pressure sensor and temperature sensor on valve body, be provided with pressure detection channel for pressure sensor detection end inserts on valve body, be provided with temperature detection channel for temperature sensor inserts on valve body, temperature detection channel is provided with intercommunication with pressure detection channel.

2. A self-lubricating relief valve as claimed in claim 1, characterized in that The overflow pressure adjusting assembly includes an overflow valve spool, a pressure adjusting spring, an adjusting member, and an adjusting channel in communication with the overflow channel. The pressure adjusting spring is arranged between the overflow valve spool and the adjusting member, and the adjusting member and the overflow valve spool are both arranged with a limiting block extending into the pressure spring. The adjusting channel is arranged opposite to the main channel, the overflow valve spool is slidingly connected with the overflow channel, the adjusting member is movably connected with the adjusting channel, and the adjusting member is coaxially arranged with the overflow valve spool.

3. A self-lubricating relief valve as defined in claim 2 wherein, A steel wire sleeve is fixedly arranged on the inner wall of the adjusting channel, the adjusting member is threadedly connected with the fixed sleeve, and the adjusting member is arranged with an internal hexagonal groove hole in a direction away from the main channel.

4. A self-lubricating relief valve as claimed in claim 3, wherein, A screw plug is arranged at one end of the adjusting member away from the pressure adjusting spring, and the screw plug is threadedly connected with the steel wire sleeve.

5. A self-lubricating relief valve as claimed in claim 4, wherein, A gasket is arranged between the screw plug and the valve body.

6. A self-lubricating relief valve as defined in claim 2 wherein, The overflow valve spool is arranged with a containing cavity at one side facing the main channel, and a plurality of overflow holes are formed in the side wall of the containing cavity close to the pressure adjusting spring.

7. A self-lubricating relief valve as claimed in claim 6, characterized in that The overflow channel includes a first channel, a second channel, and a third channel arranged in sequence. The first channel is in communication with the main channel. The second channel is in communication with the first channel and the adjusting channel, and the inner diameter of the second channel is larger than that of the first channel. The third channel is in communication with the overflow port flange and the second channel.

8. A self-lubricating relief valve as defined in claim 1 wherein, The overflow valve spool includes a power section and a clamping section arranged integrally, the power section is slidingly connected with the overflow channel, the containing cavity is arranged in the power section, and the overflow holes are arranged on the side wall of the power section; the clamping section is arranged in the second channel, the clamping section includes a clamping inclined surface integrally connected with the power section, the maximum diameter of the clamping inclined surface is larger than the diameter of the power section, and the clamping inclined surface is connected to the power section from the maximum diameter end; the pressure adjusting spring is arranged at one end of the clamping section away from the power section.

9. A self-lubricating relief valve as defined in claim 7 wherein, Sealing grooves are arranged at the inlet connecting flange, the outlet connecting flange, and the overflow port flange, and O-shaped sealing rings are arranged in the sealing grooves.

10. A self-lubricating relief valve as defined in claim 1 wherein, A plurality of fixing bolts are arranged on the valve body.

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