Air suction prevention one-way valve structure for thin oil cooling and lubricating device

Abstract

The utility model relates to an air suction prevention one-way valve structure for a thin oil cooling and lubricating device, which comprises a valve body and a one-way valve core, the valve body is provided with an oil-gas channel, the one-way valve core is arranged in the oil-gas channel in a sliding fit mode, and an elastic piece is arranged on the valve body and used for driving the one-way valve core to block the inlet end of the oil-gas channel. The one-way valve element is provided with an exhaust hole, the exhaust hole is used for exhausting air in a pipeline between the pump and the filter assembly, and the exhaust hole communicates with the oil-gas channel. By means of the exhaust hole formed in the one-way valve element, after the pump is started, air in an outlet pipeline of the pump can be effectively exhausted, the pump can smoothly discharge oil, the phenomenon that the pump idles and does not discharge oil is avoided, and the stability of a system is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of a thin oil cooling and lubricating system, in particular to an anti-cavitation one-way valve structure for a thin oil cooling and lubricating device. Background Art

[0002] In the existing thin oil cooling and lubrication system, the oil from the pump to the filter assembly is mostly connected by a pipeline. The pump sucks oil from the oil tank, transports the oil to the filter inlet through a hose, and finally enters the filter assembly after passing through a one-way valve. After the system is assembled and before the first system operation, start the pump. Since the pipeline between the pump and the filter will form a closed space and the pump itself has no exhaust device, it will cause the pump to easily absorb air.

[0003] Therefore, there is an urgent need for a device that can effectively remove the air in the pump outlet pipeline after the pump is started, so that the pump can smoothly discharge oil, avoid the phenomenon of the pump running idle without discharging oil, and improve the stability of the system. Utility Model Content

[0004] In view of this, the utility model provides an anti-air suction one-way valve structure for a thin oil cooling and lubrication device. After the pump is started, the air in the pump outlet pipeline can be effectively removed to allow the pump to discharge oil smoothly, thereby avoiding the phenomenon of the pump running idle without discharging oil, and effectively improving the stability of the system.

[0005] The utility model provides an anti-cavitation one-way valve structure for a thin oil cooling and lubrication device, which adopts the following technical solutions:

[0006] A one-way valve structure for preventing cavitation for a thin oil cooling and lubrication device comprises a valve body and a one-way valve core, wherein the valve body has an oil and gas passage, the one-way valve core is slidingly fitted in the oil and gas passage, an elastic member is arranged on the valve body, the elastic member is used to drive the one-way valve core to seal the inlet end of the oil and gas passage, the one-way valve core has an exhaust hole, the exhaust hole is used to exhaust air in the pipeline between a pump and a filter assembly, and the exhaust hole is connected to the oil and gas passage.

[0007] Optionally, a fixing seat is provided on the valve body, and the one-way valve core is provided on the fixing seat.

[0008] Optionally, the fixing seat is provided with a guide shaft along the axial direction, and the one-way valve core is slidably fitted on the guide shaft along the axial direction.

[0009] Optionally, a protrusion is provided at the inlet end of the one-way valve core located at the oil and gas channel, and the exhaust hole is opened at the protrusion end of the protrusion.

[0010] Optionally, a step is provided at the inlet end of the oil and gas channel, and the one-way valve core is pressed against the step to block the inlet end of the oil and gas channel.

[0011] Optionally, a guide surface is provided on the side wall of the one-way valve core, and the guide surface and the inner contour of the oil and gas channel are pressed against the step.

[0012] Optionally, the elastic member is a spring, and the spring is used to apply a downward pre-tightening force to the one-way valve core so that the one-way valve core blocks the inlet end of the oil and gas channel.

[0013] To sum up, the utility model includes at least one of the following beneficial technical effects: through the exhaust hole set by the one-way valve core, after the pump is started, the air in the pump outlet pipeline can be effectively removed, so that the pump can discharge oil smoothly, avoiding the phenomenon of the pump running idle without discharging oil, and effectively improving the stability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0016] Figure 2 It is a schematic diagram of exhaust according to an embodiment of the utility model.

[0017] Explanation of the accompanying drawings: 1. valve body; 2. fixed seat; 3. guide rod; 4. spring; 5. one-way valve core. DETAILED DESCRIPTION

[0018] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0019] The following is combined with Figure 1-2 The utility model is described in further detail.

[0020] The utility model embodiment discloses an anti-cavitation one-way valve structure for a thin oil cooling and lubrication device.

[0021] Reference Figure 1 and Figure 2A one-way valve structure for preventing air suction used in a thin oil cooling and lubricating device includes a valve body 1 and a one-way valve core 5. The valve body 1 has an oil and gas passage. The one-way valve core 5 is slidably arranged in the oil and gas passage. An elastic member is arranged on the valve body 1. The elastic member is used to drive the one-way valve core 5 to block the inlet end of the oil and gas passage. The one-way valve core 5 has an exhaust hole. The exhaust hole is used to discharge the air in the pipeline between the pump and the filter assembly. The exhaust hole is connected to the oil and gas passage. Through the exhaust hole provided on the one-way valve core 5, after the pump is started, the air in the pump outlet pipeline can be effectively discharged, so that the pump can smoothly discharge oil, avoiding the phenomenon of the pump running idly without discharging oil, and effectively improving the stability of the system.

[0022] In this embodiment, the valve body 1 has an oil and gas channel for the oil sucked out of the oil tank by the pump to pass through. The oil and gas channel axially penetrates the valve body 1, one end of which is an inlet end for communicating with the oil sucked out of the oil tank by the pump, and the other end is an outlet end for communicating with the filter assembly.

[0023] A fixed seat 2 is provided on the valve body 1, and the fixed seat 2 is used as a basis for supporting the one-way valve core 5. The one-way valve core 5 is arranged on the fixed seat 2. The valve body 1 is provided with a mounting groove at the outlet end, and the fixed seat 2 is installed in the mounting groove. The fixed seat 2 has an intermediate channel that communicates with the oil and gas channel. The oil flowing out of the oil and gas channel flows to the filter assembly through the intermediate channel.

[0024] The fixed seat 2 is axially provided with a guide shaft, the one-way valve core 5 is axially slidably fitted on the guide shaft, the one-way valve core 5 is provided with a sliding portion toward the outlet end, the sliding portion is coaxially provided with a sliding groove, and the guide seat is slidably fitted in the sliding groove to realize the sliding of the one-way valve core 5.

[0025] The one-way valve core 5 is provided with a protrusion at the inlet end of the oil and gas channel, and the exhaust hole is opened at the protrusion end of the protrusion. The one-way valve core 5 includes a head and a sliding part. The head is used to block the inlet end of the oil and gas channel. The protrusion is arranged on the side of the head away from the outlet end. The exhaust hole includes exhaust hole 1 and exhaust hole 2. The exhaust hole coaxially passes through the head and communicates with the sliding groove. The exhaust hole 2 is opened in the sliding part and communicates with the sliding groove and the oil and gas channel respectively. When the head blocks the inlet end of the oil and gas channel, the exhaust hole 1 and the exhaust hole 2 communicate.

[0026] A step is provided at the inlet end of the oil and gas channel, and the one-way valve core 5 is pressed against the step to seal the inlet end of the oil and gas channel. The inner diameter of the step is smaller than the diameter of the head, so that the head can seal the inlet end of the oil and gas channel. At the same time, the step can also limit the displacement of the one-way valve core 5 and play a role in limiting.

[0027] The side wall of the head of the one-way valve core 5 is provided with a guide surface, and the guide surface and the inner contour of the oil and gas channel are pressed against the step. The guide surface can make the oil flow smoother and the blocking smoother.

[0028] In this embodiment, the elastic member is a spring 4, which is used to apply a downward pre-tightening force to the one-way valve core 5 so that the one-way valve core 5 blocks the inlet end of the oil and gas channel. One end of the spring 4 is coaxially sleeved on the sliding part and the other end is fixed to the fixed seat 2. The elastic force applied by the spring 4 is used to complete the sealing or non-blocking, thereby realizing automatic exhaust.

[0029] like Figure 1 As shown in FIG. 1 , the one-way valve core 5 is placed at the bottom of the valve body 1 under the action of the spring 4. When the system is started, the pump sucks oil from the oil tank, forcing the air in the pipeline between the pump and the filter assembly to be discharged through the exhaust hole of the one-way valve core 5. The exhaust is as shown in FIG. Figure 2 When the air in the pipeline is exhausted, the hydraulic oil pushes the one-way valve core 5 to move vertically backward along the guide shaft, and the lubricating oil flows out through the one-way valve core 5 and the fixing seat 2 and enters the filter.

[0030] The utility model has the advantages of simple assembly and high reliability, avoids the phenomenon of the pump running dry without oil discharge, effectively improves the stability of the system, avoids the occurrence of the pump sucking air, and is conducive to the normal operation of the system.

[0031] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The description of the above embodiments is only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make some improvements, embellishments or changes, and can also combine the above technical features in an appropriate manner; these improvements, embellishments, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. An anti-cavitation check valve structure for a thin oil cooling and lubrication device, characterized in that: It includes a valve body and a one-way valve core, the valve body has an oil and gas channel, the one-way valve core is slidingly arranged in the oil and gas channel, an elastic member is arranged on the valve body, the elastic member is used to drive the one-way valve core to block the inlet end of the oil and gas channel, the one-way valve core has an exhaust hole, the exhaust hole is used to discharge the air in the pipeline between the pump and the filter assembly, and the exhaust hole is connected to the oil and gas channel.

2. The anti-cavitation check valve structure for a thin oil cooling and lubrication device according to claim 1, characterized in that: A fixing seat is arranged on the valve body, and the one-way valve core is arranged on the fixing seat.

3. The anti-cavitation check valve structure for a thin oil cooling and lubrication device according to claim 2, characterized in that: The fixing seat is provided with a guide shaft along the axial direction, and the one-way valve core is provided on the guide shaft in a sliding manner along the axial direction.

4. The anti-cavitation check valve structure for a thin oil cooling and lubrication device according to claim 1, characterized in that: The one-way valve core is provided with a protrusion at the inlet end of the oil and gas channel, and the exhaust hole is opened at the protrusion end of the protrusion.

5. The anti-cavitation check valve structure for a thin oil cooling and lubrication device according to claim 1, characterized in that: A step is provided at the inlet end of the oil and gas channel, and the one-way valve core is pressed against the step to block the inlet end of the oil and gas channel.

6. The anti-cavitation check valve structure for a thin oil cooling and lubrication device according to claim 5, characterized in that: The side wall of the one-way valve core is provided with a guide surface, and the guide surface and the inner contour of the oil and gas channel are tightly pressed against the step.

7. The anti-cavitation check valve structure for a thin oil cooling and lubrication device according to claim 1, characterized in that: The elastic member is a spring, and the spring is used to apply a downward pre-tightening force to the one-way valve core so that the one-way valve core blocks the inlet end of the oil and gas channel.

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