Quantitative detectable rotary grease feeding device

Abstract

The utility model discloses a quantitative detectable rotary grease feeding device, which belongs to the technical field of lubricating pumps and particularly comprises a valve body, a piston cavity is arranged in the valve body, a piston rod is movably connected in the piston cavity, and a piston ring attached to the inner wall of the piston cavity is fixedly sleeved on the piston rod. The piston ring divides the piston cavity into a first oil cavity and a second oil cavity, and the first oil cavity and the second oil cavity are both provided with circulation pipelines; an oil inlet pipeline and an oil outlet pipeline corresponding to each circulation pipeline are arranged in the valve body, and one end of the oil inlet pipeline and one end of the oil outlet pipeline are connected with the circulation pipelines; a valve cavity is formed in the valve body, a valve rod is rotationally connected into the valve cavity, and radial circulation holes corresponding to the oil inlet pipeline and the oil outlet pipeline are formed in the valve rod. Compared with a traditional plunger pump mechanical driving quantitative oil feeding mode, the oil feeding device has the advantages of being simple in structure, high in oil feeding precision, low in abrasion rate and high in extreme working condition adaptability.

Description

A quantitative and detectable rotary grease applicator Technical Field

[0001] This utility model belongs to the field of lubrication pump technology, specifically relating to a quantitative and detectable rotating grease supply device. Background Technology

[0002] A lubrication pump is a lubrication device that supplies lubricant to lubrication points. Mechanical equipment requires regular lubrication, and lubrication pumps simplify this maintenance process. Lubrication devices effectively reduce equipment failures, lower energy consumption, improve production efficiency, and extend machine lifespan.

[0003] Chinese utility model patent application number 202322029535.9 is disclosed in the prior art, which discloses an electric lubrication pump, belonging to the field of grease lubrication. The electric lubrication pump includes: a base and a housing fixed on the base; the base has an oil inlet port, an oil outlet a, and an oil outlet b inside; the housing has an oil outlet pipe a, an oil supply pipe a, an oil supply pipe b, and an oil outlet pipe b inside, with oil outlet pipes a and b respectively connected to both sides of an oil reservoir; a plunger pump is installed in the oil reservoir, and a sensor is installed at one end of the oil reservoir; a motor is installed on the outer side of the housing, and the motor is fixed to the housing through a flange hole, with the motor's output shaft connected to a reduction gear shaft, which is located inside the housing and connected to the plunger pump via a reciprocating connecting rod. This electric lubrication pump can simultaneously pump out different types of grease at different flow rates, conveniently meeting the lubrication needs of different mechanical parts; the sensor at one end of the oil reservoir can detect the number of plunger pump movements, facilitating monitoring.

[0004] Although the existing technology uses a plunger pump to mechanically drive the piston to reciprocate and complete the automatic and quantitative oil replenishment operation, it suffers from problems such as complex structure, low oil replenishment accuracy, high wear rate, and poor adaptability to extreme working conditions. Therefore, there is a need to provide a quantitative and detectable rotary grease supply device to solve the above-mentioned technical problems. Summary of the Invention

[0005] To address the problems mentioned in the background section, this invention provides a quantitative and detectable rotary grease supply device, which features a simple structure, high grease supply accuracy, low wear rate, and strong adaptability to extreme working conditions.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a quantitative and detectable rotary grease applicator, comprising a valve body, wherein a piston chamber is provided in the valve body, a piston rod is movably connected in the piston chamber, a piston ring is fixedly sleeved on the piston rod and fits against the inner wall of the piston chamber, the piston ring divides the piston chamber into a first oil chamber and a second oil chamber, and both the first oil chamber and the second oil chamber are provided with flow pipes;

[0007] The valve body is provided with an oil inlet pipe and an oil outlet pipe corresponding to each of the flow pipes, and one end of each of the oil inlet pipe and the oil outlet pipe is connected to the flow pipe.

[0008] The valve body is provided with a valve cavity, and a valve stem is rotatably connected in the valve cavity. The valve stem is provided with radial flow holes corresponding to the oil inlet pipe and the oil outlet pipe.

[0009] Preferably, a first sealing ring is fixedly sleeved on the piston ring.

[0010] Preferably, a sensor is provided at one end of the piston chamber, and a magnet corresponding to the sensor is provided on the piston rod.

[0011] Preferably, the valve body is provided with a sealing pipe that communicates with the flow pipe, and a sealing head is fixedly connected to the other end of the sealing pipe.

[0012] Preferably, a second sealing ring is fixedly connected to both sides of the valve stem inside the valve cavity.

[0013] Preferably, a drive motor is fixedly connected to the valve body, the output shaft of the drive motor passes through the valve cavity and is connected to the valve stem for transmission, and an oil seal is provided between the output shaft of the drive motor and one end of the valve stem.

[0014] Preferably, a sealing cap is fixedly connected to one end of both the piston chamber and the valve chamber.

[0015] Preferably, the valve body also includes a base, which is fixedly connected to the valve body. The base has an oil inlet and oil outlets on both sides.

[0016] Preferably, the oil inlet is provided with an oil injection pipe connected to each of the oil inlet pipes, and the oil outlet is provided with an oil discharge pipe connected to the oil outlet pipe.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention utilizes the oil pressure entering the inlet pipe, which, through the corresponding radial flow holes on the valve stem, allows the oil to enter the first or second oil chamber. During the reciprocating motion of the piston rod and piston rings within the piston chamber, the oil in the piston chamber is discharged into the flow pipe and then, through the corresponding radial flow holes on the valve stem, forces the oil in the second or first oil chamber into the corresponding outlet pipe, thus completing the quantitative oil supply operation. It features a simple structure, high oil replenishment accuracy, low wear rate, and strong adaptability to extreme working conditions. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 is a schematic diagram of the structure of this utility model in a front cross-section.

[0022] Figure 3 is a structural schematic diagram of the main cross-section of this utility model;

[0023] In the diagram: 1. Valve body; 2. Piston chamber; 3. Piston rod; 4. Piston ring; 5. Flow line; 6. Oil inlet line; 7. Oil outlet line; 8. Valve chamber; 9. Valve stem; 10. Radial flow hole; 11. Base; 12. Oil inlet; 13. Oil outlet; 14. Oil injection line; 15. Oil discharge line; 16. First sealing ring; 17. Induction detector; 18. Magnet; 19. Blocking line; 20. Blocking head; 21. Second sealing ring; 22. Drive motor; 23. Oil seal; 24. Blocking cover. 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] Example

[0026] Please refer to Figures 1-3. This embodiment provides the following technical solution: A quantitative and detectable rotary grease applicator includes a valve body 1, a piston chamber 2 is provided inside the valve body 1, a piston rod 3 is movably connected inside the piston chamber 2, and a piston ring 4 is fixedly sleeved on the piston rod 3 and fits against the inner wall of the piston chamber 2. The piston ring 4 divides the piston chamber 2 into a first oil chamber on the left and a second oil chamber on the right. Both the first oil chamber and the second oil chamber are provided with flow pipes 5. When oil enters the first oil chamber or the second oil chamber, the piston rod 3 and the piston ring 4 move in opposite directions, which can squeeze the oil in the second oil chamber or the first oil chamber out of the piston chamber 2, thereby completing the oil inlet and outlet operation.

[0027] A first sealing ring 16 is fixedly sleeved on the piston ring 4. During the movement of the piston ring 4, the sealing between the piston ring 4 and the inner wall of the piston chamber 2 can be improved, and the oil in the first oil chamber and the second oil chamber can be prevented from communicating during the movement of the piston ring 4, which would prevent oil from entering or leaving the chamber.

[0028] A sensor 17 is provided at the right end of the piston chamber 2, and a magnet 18 corresponding to the sensor 17 is provided on the piston rod 3. In some embodiments, the sensor 17 is a Hall sensor, and the magnet 18 is a permanent magnet. Under the action of oil pressure, the piston rod 3 and the piston ring 4 can reciprocate within the piston chamber 2. During the reciprocating motion of the piston rod 3 and the piston ring 4, it is possible to monitor in real time whether the piston ring 4 is stuck or leaking, which improves the service life of the equipment and facilitates the maintenance of the equipment.

[0029] The valve body 1 is provided with two sets of oil inlet pipes 6 and oil outlet pipes 7. The oil inlet pipe 6 and oil outlet pipe 7 on the left are connected to the connecting pipe on the left, and the oil inlet pipe 6 and oil outlet pipe 7 on the right are connected to the connecting pipe on the right. In some embodiments, the oil inlet pipe 6 has an L-shaped structure. The vertical section of the oil inlet pipe 6 is parallel to the oil outlet pipe 7, and the horizontal section of the oil inlet pipe 6 is parallel to the axis of the piston chamber 2. The oil inlet pipe 6 is connected to the oil outlet pipe 7 and the flow pipe 5.

[0030] It also includes a base 11, which is fixedly connected to the valve body 1. The base 11 is provided with an oil inlet 12, and oil outlets 13 are provided on the left and right sides of the base 11 respectively. The oil outlets 13 are connected to the oil outlet pipes 7. The oil inlet 12 is provided with an oil injection pipe 14 connected to each oil inlet pipe 6. The oil outlet 13 is provided with an oil discharge pipe 15 connected to the oil outlet pipes 7. In some embodiments, the oil outlet 13 is connected to a high-pressure oil injection pipe and an oil replenishment pipe, so that after the high-pressure oil is injected into the device, it is then distributed by the device to the mechanical equipment that needs oil replenishment.

[0031] As shown in Figures 2 and 3, a valve cavity 8 is provided inside the valve body 1, and a valve stem 9 is rotatably connected inside the valve cavity 8. The valve stem 9 is provided with radial flow holes 10 corresponding to the oil inlet pipe 6 and the oil outlet pipe 7. In some embodiments, the axial direction of the valve cavity 8 is parallel to the axial direction of the piston cavity 2, and the axial direction of the valve cavity 8 is perpendicular to the oil inlet pipe 6 and the oil outlet pipe 7. The valve cavity 8 is connected to the oil inlet pipe 6 and the oil outlet pipe 7. Four radial flow holes 10 are provided on the valve stem 9, and the four radial flow holes 10 are sequentially divided into four radial holes from left to right: the first radial hole... The first radial flow hole 10, the second radial flow hole 10, the third radial flow hole 10, and the fourth radial flow hole 10 are connected to the oil outlet pipe 7 on the left side, the second radial flow hole 10 is connected to the oil inlet pipe 6 on the left side, the third radial flow hole 10 is connected to the oil inlet pipe 6 on the right side, and the fourth radial flow hole 10 is connected to the oil outlet pipe 7 on the right side. The first radial flow hole 10 and the third radial flow hole 10 are on the same axis, and the second radial flow hole 10 and the fourth radial flow hole 10 are on the same axis.

[0032] A second sealing ring 21 is fixedly connected to both the left and right sides of the valve stem 9 inside the valve cavity 8, which improves the sealing performance of the valve stem 9 when it rotates inside the valve cavity 8.

[0033] A drive motor 22 is fixedly connected to the valve body 1. The output shaft of the drive motor 22 passes through the valve cavity 8 and is connected to the valve stem 9. Under the driving action of the drive motor 22, the valve stem 9 rotates in the valve cavity 8. During the rotation of the valve stem 9, the radial flow hole 10 is connected to the corresponding oil inlet pipe 6 and oil outlet pipe 7, so that the oil inlet pipe 6 or oil outlet pipe 7 on the left and right sides are in an open or closed state, thus completing the quantitative oil inlet and outlet operation.

[0034] The valve body 1 is provided with a blocking pipe 19 that communicates with the flow pipe 5. The other end of the blocking pipe 19 is fixedly connected to a blocking head 20. In some embodiments, the oil inlet section of the blocking pipe 19 is connected to the transverse section of the oil inlet pipe 6, while the oil outlet section of the blocking pipe 19 is connected to the blocking head 20. The blocking head 20 is threadedly connected to the blocking pipe 19, which can ensure stable oil suction efficiency and output pressure.

[0035] An oil seal 23 is provided between the output shaft of the drive motor 22 and the right end of the valve stem 9. The oil seal 23 can increase the sealing performance of the output shaft of the drive motor 22 and the valve stem 9 during rotation.

[0036] Both piston chamber 2 and valve chamber 8 are fixedly connected to the left end of a sealing cap 24. In some embodiments, the sealing cap 24 is threaded onto piston chamber 2 or valve chamber 8, which facilitates the disassembly and assembly of the sealing cap 24, thereby facilitating the disassembly, assembly, and maintenance of the equipment.

[0037] The working principle of this utility model is as follows: When in use, the high-pressure oil injection pipe is connected to the oil inlet 12, so that the high-pressure oil injection pipe injects oil into the oil inlet 12.

[0038] As shown in Figure 2, the drive motor 22 is then started, and when the valve stem 9 rotates to the first position, the first radial flow hole 10 is connected to the oil outlet pipe 7 on the left, and the third radial flow hole 10 is connected to the oil inlet pipe 6 on the right. At this time, under the pressure of the oil, the oil enters the second oil chamber through the oil injection pipe 14 on the right, the oil inlet pipe 6 on the right and the flow pipe 5 on the right. Under the pressure of the oil, the piston rod 3 and the piston ring 4 move to the left side of the piston chamber 2, so that the oil in the first oil chamber enters the oil outlet 13 on the left through the connecting pipe on the left, the oil outlet pipe 7 on the left and the oil drain pipe 15 on the left, thereby performing the oil injection operation on the mechanical equipment.

[0039] As shown in Figure 3, when the valve stem 9 rotates to the second position, the second radial flow hole 10 is connected to the oil inlet pipe 6 on the left, and the fourth radial flow hole 10 is connected to the oil outlet pipe 7 on the left. At this time, under the pressure of the oil, the oil passes through the oil injection pipe 14 on the left, the oil inlet pipe 6 on the left, and the flow pipe 5 on the left and enters the first oil chamber. Under the pressure of the oil, the piston rod 3 and the piston ring 4 move to the right side of the piston chamber 2, so that the oil in the second oil chamber enters the oil outlet 13 on the right through the connecting pipe on the right, the oil outlet pipe 7 on the right, and the drain pipe 15 on the right, thereby performing the oil injection operation on the mechanical equipment.

[0040] During the continuous rotation of valve stem 9, valve stem 9 can be switched to the first or second working position, thereby completing the operation of metered oil inlet and metered oil outlet.

[0041] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quantitative and detectable rotary grease applicator, characterized in that: The valve body (1) includes a piston chamber (2) inside the valve body (1), a piston rod (3) is movably connected inside the piston chamber (2), a piston ring (4) is fixedly sleeved on the piston rod (3) and fits against the inner wall of the piston chamber (2), the piston ring (4) divides the piston chamber (2) into a first oil chamber and a second oil chamber, and a flow pipe (5) is provided on both the first oil chamber and the second oil chamber; an oil inlet pipe (6) and an oil outlet pipe (7) corresponding to each of the flow pipes (5) are provided inside the valve body (1), one end of each of the oil inlet pipe (6) and the oil outlet pipe (7) is connected to the flow pipe (5); a valve chamber (8) is provided inside the valve body (1), a valve rod (9) is rotatably connected inside the valve chamber (8), and a radial flow hole (10) corresponding to the oil inlet pipe (6) and the oil outlet pipe (7) is provided on the valve rod (9).

2. The quantitatively detectable rotary grease applicator according to claim 1, characterized in that: It also includes a base (11), which is fixedly connected to the valve body (1). The base (11) is provided with an oil inlet (12) and oil outlets (13) are provided on both sides of the base (11).

3. The quantitatively detectable rotary grease applicator according to claim 2, characterized in that: The oil inlet (12) is provided with an oil injection pipeline (14) connected to each of the oil inlet pipelines (6), and the oil outlet (13) is provided with an oil discharge pipeline (15) connected to the oil outlet pipeline (7).

4. The quantitatively detectable rotary grease applicator according to claim 1, characterized in that: The piston ring (4) is fixedly fitted with a first sealing ring (16).

5. The quantitatively detectable rotary grease applicator according to claim 1, characterized in that: A sensor (17) is provided at one end of the piston chamber (2), and a magnet (18) corresponding to the sensor (17) is provided on the piston rod (3).

6. The quantitatively detectable rotary grease applicator according to claim 1, characterized in that: The valve body (1) is provided with a blocking pipe (19) that is connected to the flow pipe (5), and the other end of the blocking pipe (19) is fixedly connected to a blocking head (20).

7. The quantitatively detectable rotary grease applicator according to claim 1, characterized in that: The valve cavity (8) is fixedly connected to the second sealing ring (21) on both sides of the valve stem (9).

8. The quantitatively detectable rotary grease applicator according to claim 1, characterized in that: A drive motor (22) is fixedly connected to the valve body (1). The output shaft of the drive motor (22) passes through the valve cavity (8) and is connected to the valve stem (9) in a transmission manner. An oil seal (23) is provided between the output shaft of the drive motor (22) and one end of the valve stem (9).

9. A quantitatively detectable rotary grease applicator according to claim 1, characterized in that: A sealing cap (24) is fixedly connected to one end of both the piston chamber (2) and the valve chamber (8).

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