Centralized lubricating device capable of automatically adding grease and exhausting gas

Abstract

The utility model discloses a centralized lubricating device capable of automatically adding grease and exhausting air. The centralized lubricating device comprises a breather valve, an oil storage barrel, an elastic assembly, a plunger plate, an impeller, a heating belt and an integrated oil way. The integrated oil way is arranged below the oil storage barrel and connected with the oil storage barrel. The impeller is mounted on the inner wall of the bottom of the oil storage barrel; the plunger plate is installed in the oil storage barrel and can be tightly attached to the lateral inner wall of the oil storage barrel in a sealed mode. Two breathing holes are formed in the side face of the oil storage barrel, located in the upper side and the lower side of the plunger plate respectively and connected together through a pipeline. One end of the elastic assembly is connected with the plunger plate, and the other end of the elastic assembly is connected with the inner wall of the top of the oil storage barrel. The breather valve is connected with the oil storage barrel and located on the top of the oil storage barrel. The heating belt is arranged on the outer wall of the oil storage barrel and is close to the bottom of the oil storage barrel; according to the lubricating grease filling device, lubricating grease can be automatically filled into the grease storage barrel, the filled lubricating grease is exhausted, and the flowability of the lubricating grease is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mechanical centralized lubrication, especially to a centralized lubrication device with automatic grease feeding and exhaust. BACKGROUND

[0002] The centralized lubrication device is widely used in the fields of wind driven generators and engineering machinery. Through program control, the lubricating pump sends lubricating grease to each lubricating point through the grease feeding pipeline in a timely and quantitative manner, so as to realize the purpose of automatically feeding the lubricating grease to the friction pair.

[0003] After the lubricating grease is added to the centralized lubrication barrel, the air mixed with the lubricating grease in the barrel needs to be discharged to avoid the air entering the pipe system of the lubricating grease distributor. In the past, the exhaust method is as described in Chinese invention patent application CN114440105A. After the grease feeding is completed, the air is naturally discharged by using the exhaust film. However, in the actual use process, because the lubricating grease has large viscosity and poor flowability, the air remaining in the lubrication barrel is difficult to discharge. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the problems in the prior art, provides a centralized lubrication device with automatic grease feeding and exhaust, improves the existing centralized lubrication device that cannot discharge the internal air after grease feeding, cannot automatically feed the grease to the oil storage barrel, and the lubricating grease has poor flowability under low temperature working conditions, can realize automatic feeding of the lubricating grease to the oil storage barrel and exhaust of the fed lubricating grease, and increases the flowability of the lubricating grease.

[0005] To achieve the above-mentioned purpose, the utility model provides a technical scheme of a centralized lubrication device with automatic grease feeding and exhaust. The device comprises a breathing valve, an oil storage barrel, an elastic assembly, a plunger plate, an impeller, a heating belt and an integrated oil circuit. The integrated oil circuit is arranged below the oil storage barrel and connected with the oil storage barrel. The impeller is installed at the bottom inner wall of the oil storage barrel. The plunger plate is installed in the oil storage barrel and can be tightly sealed with the lateral inner wall of the oil storage barrel. Two breathing holes are opened on the side of the oil storage barrel, which are located on the upper and lower sides of the plunger plate and connected together through pipelines. One end of the elastic assembly is connected with the plunger plate, and the other end is connected with the top inner wall of the oil storage barrel. The breathing valve is connected with the oil storage barrel and located at the top of the oil storage barrel. The heating belt is arranged at the outer wall of the oil storage barrel and close to the bottom of the oil storage barrel.

[0006] Further, the integrated oil circuit comprises a stop check valve, a vacuum pump, a stop valve, a first three-way valve, a second three-way valve, a third three-way valve, an oil transfer pump, a grease distributor and pipelines; a first port of the first three-way valve is connected with the bottom of the oil storage barrel through a pipeline, a second port of the first three-way valve is connected with a preset manual oil filling hole through a pipeline, and a third port of the first three-way valve is connected with a first port of the third three-way valve through a pipeline; a first port of the second three-way valve is connected with the bottom of the oil storage barrel through a pipeline, a second port of the second three-way valve is connected with a preset external automatic oil filling hole through a pipeline, and a third port of the second three-way valve is connected with a second port of the third three-way valve through the oil transfer pump; the third port of the third three-way valve is connected with the grease distributor; one end of the stop check valve is connected with the top of the oil storage barrel through a pipeline, and the other end of the stop check valve is connected with one end of the stop valve through the vacuum pump, and the other end of the stop valve is connected with a pipeline extending to the outside.

[0007] Further, a grease oil level monitoring device is arranged in the oil storage barrel, and is used for monitoring the oil level in the oil storage barrel.

[0008] Further, the first three-way valve, the second three-way valve and the third three-way valve are electromagnetic three-way valves or manual three-way valves.

[0009] Further, heating tapes are embedded in the inner wall of the oil storage barrel and the impeller.

[0010] Further, the elastic assembly is a spring.

[0011] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0012] 1. The utility model can realize automatic filling of grease into the oil storage barrel, shorten the grease filling time and improve the operation efficiency.

[0013] 2. The utility model can realize exhaust of the filled grease, and reduce the risk of air injection into the grease distributor.

[0014] 3. The utility model can realize heating of the grease, increase the flowability of the grease and improve the exhaust effect. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model. DETAILED DESCRIPTION

[0016] The utility model will be further described in combination with specific embodiments.

[0017] Embodiment 1

[0018] Reference Figure 1As shown, the centralized lubricating device with automatic grease feeding and exhaust provided by the embodiment comprises a breathing valve 1, an oil storage tank 2, an elastic assembly 3, a plunger plate 4, an impeller 5, a heating belt 13, a grease oil level monitoring device and an integrated oil circuit.

[0019] The integrated oil circuit is arranged below and connected with the oil storage tank 2; the impeller 5 is installed at the inner wall of the bottom of the oil storage tank 2; the plunger plate 4 is installed in the oil storage tank 2 and can be tightly sealed with the lateral inner wall of the oil storage tank 2; two breathing holes A and B are formed in the side of the oil storage tank 2, and the two breathing holes A and B are located on the upper and lower sides of the plunger plate 4 respectively and are connected together through pipelines; the elastic assembly 3 is a spring, one end of the spring is connected with the plunger plate 4, and the other end of the spring is connected with the top inner wall of the oil storage tank 2; the breathing valve 1 is connected with the oil storage tank 2 and is located at the top of the oil storage tank 2; the heating belt 13 is arranged at the outer wall of the oil storage tank 2 and is close to the bottom of the oil storage tank 2; the grease oil level monitoring device is installed inside the oil storage tank 2 and is used for monitoring the oil level inside the oil storage tank 2; preferably, the inner wall of the oil storage tank 2 and the impeller 5 are pre-buried with the heating belt.

[0020] The integrated oil circuit comprises a stop check valve 6, a vacuum pump 7, a stop valve 8, a first three-way valve 9, a second three-way valve 10, a third three-way valve 11, an oil transfer pump 12, a grease distributor 14 and pipelines; the first three-way valve 9, the second three-way valve 10 and the third three-way valve 11 are all electromagnetic three-way valves, the first port of the first three-way valve 9 is connected with the bottom of the oil storage tank 2 through a pipeline, the second port of the first three-way valve 9 is connected with a preset manual oil feeding hole through a pipeline, and the third port of the first three-way valve 9 is connected with the first port of the third three-way valve 11 through a pipeline; the first port of the second three-way valve 10 is connected with the bottom of the oil storage tank 2 through a pipeline, the second port of the second three-way valve 10 is connected with a preset external automatic oil feeding hole through a pipeline, and the third port of the second three-way valve 10 is connected with the second port of the third three-way valve 11 through the oil transfer pump 12; the third port of the third three-way valve 11 is connected with the grease distributor 14; one end of the stop check valve 6 is connected with the top of the oil storage tank 2 through a pipeline, the other end of the stop check valve 6 is connected with one end of the stop valve 8 through the vacuum pump 7, and the other end of the stop valve 8 is connected with a pipeline extending to the outside.

[0021] Embodiment 2

[0022] Different from embodiment 1, the centralized lubricating device with automatic grease feeding and exhaust provided by the embodiment, wherein the first three-way valve 9, the second three-way valve 10 and the third three-way valve 11 are all manual three-way valves.

[0023] Embodiment 3

[0024] Different from the embodiment 1, the automatic greasing exhaust centralized lubricating device provided by the embodiment can use a single pump satisfying the working condition instead of the vacuum pump 7 and the oil transfer pump 12, so as to save space and reduce cost.

[0025] Embodiment 4

[0026] The operation method of the automatic greasing exhaust centralized lubricating device provided by the embodiment is as follows:

[0027] 1) Oil filling operation: first, the plunger plate 4 is pulled up, the lubricating grease is injected into the oil storage barrel 2 through the pipeline a1-second three-way valve 10-pipeline a2-oil transfer pump 12-pipeline a3-third three-way valve 11-pipeline a4-pipeline a5, in the oil filling process, the impeller 5 rotates to flatten and preliminarily exhaust the oil, the air above the oil is discharged through the breather valve 1, and the oil filling is completed when the oil is filled to the lower end of the breathing hole B.

[0028] 2) Exhaust operation: after the oil filling is completed, the first three-way valve 9, the second three-way valve 10 and the breather valve 1 are closed, the heating belt 13 is turned on, the rotating impeller 5 is started, the vacuum pump 7 is started, the air above the lubricating grease is pumped, the lubricating grease and the air are separated through the pressure difference and the density difference, and the air is discharged to the atmosphere through the breathing hole B-breathing hole A-pipeline a8-shutoff check valve 6-vacuum pump 7-shutoff valve 8-pipeline a11. Keep the vacuum state static, after the air is completely discharged, manually put down the plunger plate 4, the plunger plate 4 is pressed under the action of the spring force, so that the lubricating grease is in an air-free state, the breather valve 1 is opened, and the vacuum above the lubricating grease is destroyed.

[0029] 3) Lubrication operation: adjust the directions of the second three-way valve 10 and the third three-way valve 11, start the oil transfer pump 12, and make the lubricating grease pass through the rotating impeller 5-pipeline a6-second three-way valve 10-pipeline a2-oil transfer pump 12-pipeline a3-third three-way valve 11-pipeline a7-lubricating grease distributor 14 (i.e. primary distributor)-secondary distributor, and then injected into the lubricating pinion, so as to play a lubricating role.

[0030] The above-described embodiments are only preferred embodiments of the utility model, and do not limit the implementation range of the utility model, so that any change made according to the shape and principle of the utility model should be covered in the protection range of the utility model.

Claims

1. A centralized lubrication device with automatic grease feeding and venting, characterized in that: The application relates to a grease lubricating device, which comprises a breathing valve (1), a grease reservoir (2), an elastic assembly (3), a plunger plate (4), an impeller (5), a heating belt (13) and an integrated oil circuit; the integrated oil circuit is arranged below the grease reservoir (2) and is connected with the grease reservoir (2); the impeller (5) is installed at the inner wall of the bottom of the grease reservoir (2); the plunger plate (4) is installed in the grease reservoir (2) and can be tightly sealed with the lateral inner wall of the grease reservoir (2); two breathing holes are formed in the lateral surface of the grease reservoir (2) and are located above and below the plunger plate (4) respectively and are connected through pipelines; one end of the elastic assembly (3) is connected with the plunger plate (4), and the other end of the elastic assembly (3) is connected with the top inner wall of the grease reservoir (2); the breathing valve (1) is connected with the grease reservoir (2) and is located at the top of the grease reservoir (2); and the heating belt (13) is arranged at the outer wall of the grease reservoir (2) and is close to the bottom of the grease reservoir (2).

2. A centralised lubrication device with automatic greasing and venting according to claim 1, characterised in that: The integrated oil circuit comprises a stop check valve (6), a vacuum pump (7), a stop valve (8), a first three-way valve (9), a second three-way valve (10), a third three-way valve (11), a grease transfer pump (12), a grease distributor (14) and pipelines; the first port of the first three-way valve (9) is connected with the bottom of the grease reservoir (2) through a pipeline, the second port of the first three-way valve (9) is connected with a preset manual oil filling hole through a pipeline, and the third port of the first three-way valve (9) is connected with the first port of the third three-way valve (11) through a pipeline; the first port of the second three-way valve (10) is connected with the bottom of the grease reservoir (2) through a pipeline, the second port of the second three-way valve (10) is connected with a preset external automatic oil filling hole through a pipeline, and the third port of the second three-way valve (10) is connected with the second port of the third three-way valve (11) through the grease transfer pump (12); the third port of the third three-way valve (11) is connected with the grease distributor (14); one end of the stop check valve (6) is connected with the top of the grease reservoir (2) through a pipeline, the other end of the stop check valve (6) is connected with one end of the stop valve (8) through the vacuum pump (7), and the other end of the stop valve (8) is connected with a pipeline extending to the outside.

3. A centralized lubrication device with automatic grease feeding and venting according to claim 1, characterized in that: The application further relates to a grease oil level monitoring device, which is installed in the grease reservoir (2) and is used for monitoring the oil level in the grease reservoir (2).

4. A centralised lubrication device with automatic greasing and exhaust according to claim 2, characterized in that: The first three-way valve (9), the second three-way valve (10) and the third three-way valve (11) are electromagnetic three-way valves or manual three-way valves.

5. A centralized lubrication device for automatic grease feeding and venting according to claim 1, characterized in that: The inner wall of the grease reservoir (2) and the impeller (5) are pre-buried with the heating belt.

6. A centralized lubrication device for automatic grease feeding and venting according to claim 1, characterized in that: The elastic assembly (3) is a spring.

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