Rotary valve type oil feeder and rotary valve type oil feeding system

Abstract

The utility model relates to the technical field of oil feeding, and discloses a rotary valve type oil feeder and a rotary valve type oil feeding system. The rotary valve type oil feeder comprises a valve seat assembly and a piston assembly, wherein the valve seat assembly comprises a valve seat Hell valve element; the piston assembly comprises a piston seat and a piston rod; the valve seat is provided with a first oil supply path, a second oil supply path, a first oil return path and a second oil return path, one end of the first oil supply path and one end of the first oil return path are communicated with the first oil cavity, and one end of the second oil supply path and one end of the second oil return path are communicated with the second oil cavity; the valve element can control synchronous on-off of the first oil supply oil way and the second oil return oil way and synchronous on-off of the second oil supply oil way and the first oil return oil way through rotation of the valve element. According to the rotary valve type oil feeder, the size of the valve cavity is basically consistent with that of the valve element, the space occupied by the valve seat in the axial direction is reduced, the piston seat is located on one side of the valve seat, the overall structure is more compact, and the overall structure size of the rotary valve type oil feeder is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil feeding technical field, concretely relates to a valve type oil feeder and valve type oil feeding system. BACKGROUND

[0002] The lubricating system is the system for supplying the lubricating oil to the friction pair of the mechanical equipment, and its principle is that the oil pump pumps the lubricating oil in the oil tank to each lubricating point of the mechanical equipment, the oil liquid is caused to return to the oil tank under the action of gravity through the design pipeline, and a multi-point circulating system is formed. The oil feeder is an execution mechanism of the lubricating system, is mainly used for controlling and opening the oil circuit, and the signal related to the flow state of the lubricating agent in the pipeline detected by the flow sensor or pressure switch is fed back to the main control system, so that the opening and closing of the electromagnetic valve of the electromagnetic oil feeder is controlled, thereby realizing flow monitoring.

[0003] The mechanical equipment usually adopts the electromagnetic iron drive oil feeder to feed oil, and the electromagnetic iron drive oil feeder needs the valve core to reciprocate in the valve cavity along the axial direction to work. In this kind of driving mode, in order to ensure that the valve core can reciprocate, the axial size of the valve cavity should be greater than the axial size of the valve core, so as to provide enough movement space, which leads to that the space occupation of the valve seat in the axial direction is large, and the overall size of the equipment is increased. SUMMARY

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the utility model provides a valve type oil feeder and valve type oil feeding system.

[0005] The utility model provides a valve type oil feeder, which comprises:

[0006] A valve seat assembly comprises a valve seat and a valve core rotatably arranged in the valve cavity of the valve seat;

[0007] A piston assembly comprises a piston seat arranged on the side surface of the valve seat and a piston rod slidingly arranged in the piston cavity of the piston seat, and the piston rod divides the piston cavity into a first oil cavity and a second oil cavity;

[0008] A first oil supply oil path, a second oil supply oil path, a first oil return oil path and a second oil return oil path are formed in the valve seat, one end of the first oil supply oil path and the first oil return oil path is communicated with the first oil cavity, and one end of the second oil supply oil path and the second oil return oil path is communicated with the second oil cavity;

[0009] The valve core can control the synchronous on-off of the first oil supply oil path and the second oil return oil path and the synchronous on-off of the second oil supply oil path and the first oil return oil path through rotation.

[0010] Optionally, the first oil supply passage comprises a first oil inlet and a first oil supply port, one end of the first oil inlet is communicated with the valve cavity, and the other end is used for introducing lubricating oil, the first oil supply port is used for communicating the valve cavity and the first oil cavity, the first communication hole is arranged through the valve core along the radial direction of the valve core, and the first communication hole can be connected or disconnected between the first oil inlet and the first oil supply port with the rotation of the valve core.

[0011] Optionally, the second oil supply passage comprises a second oil inlet and a second oil supply port, one end of the second oil inlet is communicated with the valve cavity, and the other end is used for introducing lubricating oil, the second oil supply port is used for communicating the valve cavity and the second oil cavity, the second communication hole is arranged through the valve core along the radial direction of the valve core, and the second communication hole can be connected or disconnected between the second oil inlet and the second oil supply port with the rotation of the valve core.

[0012] Optionally, the first oil supply passage comprises a first oil inlet and a first oil supply port, one end of the first oil inlet is communicated with the valve cavity, and the other end is used for introducing lubricating oil, the first oil supply port is used for communicating the valve cavity and the first oil cavity, the first communication hole is arranged through the valve core along the radial direction of the valve core, and the first communication hole can be connected or disconnected between the first oil inlet and the first oil supply port with the rotation of the valve core.

[0013] Optionally, the second oil supply passage comprises a second oil inlet and a second oil supply port, one end of the second oil inlet is communicated with the valve cavity, and the other end is used for introducing lubricating oil, the second oil supply port is used for communicating the valve cavity and the second oil cavity, the second communication hole is arranged through the valve core along the radial direction of the valve core, and the second communication hole can be connected or disconnected between the second oil inlet and the second oil supply port with the rotation of the valve core.

[0014] Optionally, the first communication hole and the fourth communication hole have the same extension direction, the second communication hole and the third communication hole have the same extension direction, and the extension direction of the first communication hole and the fourth communication hole is perpendicular to the extension direction of the second communication hole and the third communication hole.

[0015] Optionally, the first oil outlet, the first oil inlet, the second oil inlet and the second oil outlet are arranged on the valve seat in sequence along the axial direction of the valve seat.

[0016] Optionally, the first oil supply port extends obliquely, one end of the first oil return port is communicated with the valve cavity, and the other end is communicated with the first oil supply port.

[0017] And / or, the second oil supply port is obliquely extended, one end of the first oil return port is communicated with the valve cavity, and the other end is communicated with the first oil supply port.

[0018] Optionally, one end of the piston rod is provided with a magnet, and an end of the piston seat is provided with a sensor for detecting the position of the magnet.

[0019] The utility model also provides a valve rotation type oil supply system, including above-mentioned valve rotation type oil feeder.

[0020] Compared with the prior art, the technical scheme provided by the utility model embodiment has the following advantages:

[0021] The valve rotation type oil feeder provided by the utility model opens the first oil supply oil path, the second oil supply oil path, the first oil return oil path and the second oil return oil path on the valve seat, so as to supply and return oil for the first oil cavity and the second oil cavity, and the opening and closing of the corresponding first oil supply oil path, second oil supply oil path, first oil return oil path and second oil return oil path can be controlled through the rotation of the valve core, so as to meet the oil supply and return requirements of the first oil cavity and the second oil cavity.Under this design mode, the size of the valve cavity and the valve core is basically consistent, thereby reducing the space occupation of the valve seat in the axial direction, and the piston seat is located on one side of the valve seat, so that the overall structure is more compact, and the overall structure size of the valve rotation type oil feeder is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present utility model, and together with the specification, serve to explain the principles of the present utility model.

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the present utility model or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows, and obviously, other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0024] Figure 1 It is a sectional view of the valve rotation type oil feeder described in the utility model embodiment.

[0025] EXPLANATION OF REFERENCE NUMERALS

[0026] 1. Valve seat assembly; 11. Valve seat; 12. Valve core; 121. First connecting hole; 122. Second connecting hole; 123. Third connecting hole; 124. Fourth connecting hole; 13. First plug; 2. Piston assembly; 21. Piston seat; 22. Piston rod; 23. Second oil chamber; 24. Second plug; 3. First oil supply passage; 31. First oil inlet; 32. First oil supply port; 4. Second oil supply passage; 41. Second oil inlet; 42. Second oil supply port; 5. First oil return passage; 51. First oil return port; 52. First oil outlet; 6. Second oil return passage; 61. Second oil return port; 62. Second oil outlet; 7. Magnet; 8. Sensor; 9. Drive component. Detailed Implementation

[0027] To better understand the above-mentioned objectives, features, and advantages of this utility model, the solution of this utility model will be further described below. It should be noted that, unless otherwise specified, the embodiments and features of this utility model can be combined with each other.

[0028] The following description sets forth many specific details to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments described in the specification are only some embodiments of the present invention, and not all embodiments.

[0029] like Figure 1 As shown, the rotary valve oiler provided in this embodiment of the present invention includes a valve seat assembly 1 and a piston assembly 2. The valve seat assembly 1 includes a valve seat 11 and a valve core 12 rotatably disposed inside the valve cavity of the valve seat 11. Specifically, one end of the valve seat 11 is provided with a driving member 9, which can drive the valve core 12 to rotate. The driving member 9 can be a drive motor or a combination of a drive motor and a reducer; these are not limiting factors. The piston assembly 2 includes a piston seat 21 disposed on the side of the valve seat 11 and a piston rod 22 slidably disposed inside the piston cavity of the piston seat 21. The design and connection method of the piston seat 21 and the valve seat 11 are not limited. For example, the piston seat 21 and the valve seat 11 can be designed as separate units, in which case they can be fixed by bolt connection to increase the convenience of disassembly and assembly; or, for example, the piston seat 21 and the valve seat 11 can be integrally formed to form a seat body, with the valve cavity and piston cavity located within the same seat body; these are not limiting factors. The piston chamber's axial dimension is larger than the piston rod 22's length dimension, allowing the piston rod 22 to move axially within the piston chamber. The piston rod 22 divides the piston chamber into a first oil chamber and a second oil chamber 23. Figure 1 Taking the direction shown as an example, a first oil chamber is formed on the left side of the piston rod 22, and a second oil chamber 23 is formed on the right side of the piston rod 22.

[0030] With reference to the foregoing Figure 1 , the valve seat 11 is provided with a first oil supply oil path 3, a second oil supply oil path 4, a first oil return oil path 5 and a second oil return oil path 6, one end of the first oil supply oil path 3 and the first oil return oil path 5 is communicated with the first oil chamber, the other end of the first oil supply oil path 3 is used for introducing lubricating oil, and is specifically communicated with a lubricating oil supply pipeline, the other end of the first oil return oil path 5 is used for leading out lubricating oil, and is specifically communicated with a lubricating oil leading-out pipeline, and is used for oil supply of the corresponding components. The lubricating oil can enter the first oil chamber through the first oil supply oil path 3, or the lubricating oil in the first oil chamber flows out through the first oil return oil path 5. One end of the second oil supply oil path 4 and the second oil return oil path 6 is communicated with the second oil chamber 23, the other end of the second oil supply oil path 4 is used for introducing lubricating oil, and is specifically communicated with a lubricating oil supply pipeline, the other end of the second oil return oil path 6 is used for leading out lubricating oil, and is specifically communicated with a lubricating oil leading-out pipeline, and is used for oil supply of the corresponding components. The lubricating oil can enter the second oil chamber 23 through the second oil supply oil path 4, or the lubricating oil in the second oil chamber 23 flows out through the second oil return oil path 6.

[0031] The valve core 12 can control the synchronous on-off of the first oil supply oil path 3 and the second oil return oil path 6, and control the synchronous on-off of the second oil supply oil path 4 and the first oil return oil path 5 through rotation of the valve core 12. Specifically, when oil is supplied to the first oil chamber, the first oil supply oil path 3 and the second oil return oil path 6 are communicated, the second oil supply oil path 4 and the first oil return oil path 5 are disconnected, the lubricating oil enters the first oil chamber through the first oil supply oil path 3 to push the piston rod 22 to move towards the direction of the second oil chamber 23, at this time, the lubricating oil in the second oil chamber 23 flows out through the second oil return oil path 6, for oil supply of the corresponding components. When oil is supplied to the second oil chamber 23, the second oil supply oil path 4 and the first oil return oil path 5 are communicated, the first oil supply oil path 3 and the second oil return oil path 6 are disconnected, the lubricating oil enters the second oil chamber 23 through the second oil supply oil path 4 to push the piston rod 22 to move towards the direction of the first oil chamber, at this time, the lubricating oil in the first oil chamber flows out through the first oil return oil path 5, for oil supply of the corresponding components.

[0032] The rotating valve type oil feeder provided by the utility model opens the first oil supply oil path 3, the second oil supply oil path 4, the first oil return oil path 5 and the second oil return oil path 6 on the valve seat 11 to supply and return oil (the lubricating oil returned provides to the lubrication part) for the first oil chamber and the second oil chamber 23, and can control the on-off of the corresponding first oil supply oil path 3, second oil supply oil path 4, first oil return oil path 5 and second oil return oil path 6 through the rotation of the valve core 12 to meet the oil supply and return oil demand of the first oil chamber and the second oil chamber 23, under this kind of design mode, the size of the valve cavity and the valve core 12 is basically consistent, thereby reducing the space occupation of the valve seat 11 in the axial direction, and the piston seat 21 is located on one side of the valve seat 11, so that the overall structure is more compact, and the overall structure size of the rotating valve type oil feeder is reduced.

[0033] In some implementations, such as Figure 1 As shown, the first oil supply circuit 3 includes a first oil inlet 31 and a first oil supply port 32, which are disposed opposite to each other on both sides of the valve seat 11. One end of the first oil inlet 31 is connected to the valve cavity, and the other end is used to introduce lubricating oil. The first oil supply port 32 is used to connect the valve cavity and the first oil cavity. The valve core 12 is provided with a first connecting hole 121 through it in the radial direction. The first connecting hole 121 can connect the first oil inlet 31 and the first oil supply port 32 as the valve core 12 rotates, or disconnect the first oil inlet 31 and the first oil supply port 32. Specifically, when the first oil supply circuit 3 needs to be connected, the valve core 12 rotates at an angle such that the axis of the first connecting hole 121 coincides with the axes of the first oil inlet 31 and the first oil supply port 32. At this time, the first connecting hole 121 can connect the first oil inlet 31 and the first oil supply port 32. Lubricating oil enters through the first oil inlet 31 and flows through the first connecting hole 121 to the first oil supply port 32, and then enters the first oil chamber. When the first oil supply circuit 3 does not need to be connected, the valve core 12 rotates at an angle such that the axis of the first connecting hole 121 intersects with the axes of the first oil inlet 31 and the first oil supply port 32. At this time, the outer wall of the valve core 12 is opposite to the positions of the first oil inlet 31 and the first oil supply port 32, and lubricating oil cannot flow from the first oil inlet 31 to the first oil supply port 32.

[0034] In some embodiments, the second oil supply circuit 4 includes a second oil inlet 41 and a second oil supply port 42. One end of the second oil inlet 41 is connected to the valve cavity, and the other end is used to introduce lubricating oil. The second oil supply port 42 is used to connect the valve cavity and the second oil cavity 23. The valve core 12 is provided with a second connecting hole 122 through it in the radial direction. The second connecting hole 122 can connect the second oil inlet 41 and the second oil supply port 42 as the valve core 12 rotates, or disconnect the second oil inlet 41 and the second oil supply port 42. Specifically, when the second oil supply circuit 4 needs to be connected, the angle of rotation of the valve core 12 makes the axis of the second connecting hole 122 coincide with the axis of the second oil inlet 41 and the second oil supply port 42. At this time, the second connecting hole 122 can connect the second oil inlet 41 and the second oil supply port 42. Lubricating oil enters through the second oil inlet 41, flows through the second connecting hole 122 to the second oil supply port 42, and then enters the second oil cavity 23. When the second oil supply circuit 4 does not need to be connected, the valve core 12 rotates at an angle that makes the axis of the second connecting hole 122 intersect with the axis of the second oil inlet 41 and the second oil supply port 42. At this time, the outer wall of the valve core 12 is opposite to the position of the second oil inlet 41 and the second oil supply port 42, and the lubricating oil cannot flow from the second oil inlet 41 to the second oil supply port 42.

[0035] In some embodiments, the first oil return passage 5 includes a first oil return port 51 and a first oil outlet port 52, one end of the first oil outlet port 52 being in communication with the valve cavity and the other end being used to lead out lubricating oil, the first oil return port 51 being used to communicate the valve cavity and the first oil cavity, the spool 12 being provided with a third communication hole 123 penetrating along the radial direction thereof, the third communication hole 123 being capable of communicating or disconnecting the first oil return port 51 and the first oil outlet port 52 along with the rotation of the spool 12. Specifically, when the first oil return passage 5 needs to be communicated, the spool 12 is rotated to an angle such that the axis of the third communication hole 123 coincides with the axes of the first oil return port 51 and the first oil outlet port 52, at this time, the third communication hole 123 is capable of communicating the first oil return port 51 and the first oil outlet port 52, the lubricating oil in the first oil cavity flows back through the first oil return port 51 and flows to the first oil outlet port 52 through the third communication hole 123, and then flows out through the first oil outlet port 52. When the first oil return passage 5 does not need to be communicated, the spool 12 is rotated to an angle such that the axis of the third communication hole 123 intersects with the axes of the first oil return port 51 and the first oil outlet port 52, at this time, the outer wall of the spool 12 is opposite to the positions of the first oil return port 51 and the first oil outlet port 52, and the lubricating oil cannot flow to the first oil outlet port 52 through the first oil return port 51.

[0036] The second oil return passage 6 includes a second oil return port 61 and a second oil outlet port 62, one end of the second oil outlet port 62 being in communication with the valve cavity and the other end being used to lead out lubricating oil, the second oil return port 61 being used to communicate the valve cavity and the second oil cavity 23, the spool 12 being provided with a fourth communication hole 124 penetrating along the radial direction thereof, the fourth communication hole 124 being capable of communicating or disconnecting the second oil return port 61 and the second oil outlet port 62 along with the rotation of the spool 12. Specifically, when the second oil return passage 6 needs to be communicated, the spool 12 is rotated to an angle such that the axis of the fourth communication hole 124 coincides with the axes of the second oil return port 61 and the second oil outlet port 62, at this time, the fourth communication hole 124 is capable of communicating the second oil return port 61 and the second oil outlet port 62, the lubricating oil in the second oil cavity 23 flows back through the second oil return port 61 and flows to the second oil outlet port 62 through the fourth communication hole 124, and then flows out through the second oil outlet port 62. When the second oil return passage 6 does not need to be communicated, the spool 12 is rotated to an angle such that the axis of the fourth communication hole 124 intersects with the axes of the second oil return port 61 and the second oil outlet port 62, at this time, the outer wall of the spool 12 is opposite to the positions of the second oil return port 61 and the second oil outlet port 62, and the lubricating oil cannot flow to the second oil outlet port 62 through the second oil return port 61.

[0037] In some embodiments, the first communication hole 121 and the fourth communication hole 124 have the same extension direction, so that the first communication hole 121 is connected with the first oil inlet 31 and the first oil outlet 32 and the fourth communication hole 124 is connected with the second oil return port 61 and the second oil outlet 62 at the same time during the rotation of the valve core 12, thereby realizing the synchronization of the oil inlet of the first oil chamber and the oil return of the second oil chamber 23. The second communication hole 122 and the third communication hole 123 have the same extension direction, so that the second communication hole 122 is connected with the second oil inlet 41 and the second oil outlet 42 and the third communication hole 123 is connected with the first oil return port 51 and the first oil outlet 52 at the same time during the rotation of the valve core 12, thereby realizing the synchronization of the oil inlet of the second oil chamber 23 and the oil return of the first oil chamber. The extension direction of the first communication hole 121 and the fourth communication hole 124 is perpendicular to the extension direction of the second communication hole 122 and the third communication hole 123. In this design, the valve core 12 can complete the opening and closing of the oil circuit once every 180 degrees, which is convenient for oil supply counting.

[0038] In some embodiments, the first oil outlet 52, the first oil inlet 31, the second oil inlet 41 and the second oil outlet 62 are arranged in sequence on the valve seat 11 along the axial direction of the valve seat 11. Specifically, the first oil outlet 52, the first oil inlet 31, the second oil inlet 41 and the second oil outlet have the same extension direction, which is convenient for the arrangement of the pipeline, and the arrangement of the first oil inlet 31 and the second oil inlet 41 on the inner side of the first oil outlet 52 and the second oil outlet 62 can facilitate the inclined arrangement of the first oil outlet 32 and the second oil outlet 42, so that the overall structure is more compact.

[0039] In some embodiments, the first oil outlet 32 is inclined and extends, one end of the first oil return port 51 is connected with the valve chamber, and the other end is connected with the first oil outlet 32. Specifically, the end of the first oil outlet 32 away from the valve chamber is inclined outward relative to the end of the first oil outlet 32 close to the valve chamber, and the first oil return port 51 shares part of the oil channel with the first oil outlet 32, which can reduce the space occupation in the axial direction of the valve seat 11 compared with the design of the vertical first oil outlet 32.

[0040] In some embodiments, the second oil outlet 42 is inclined and extends, one end of the first oil return port 51 is connected with the valve chamber, and the other end is connected with the first oil outlet 32. Specifically, the end of the second oil outlet 42 away from the valve chamber is inclined outward relative to the end of the second oil outlet 42 close to the valve chamber, and the second oil return port 61 shares part of the oil channel with the second oil outlet 42, which can reduce the space occupation in the axial direction of the valve seat 11 compared with the design of the vertical second oil outlet 42.

[0041] In some embodiments, one end of the piston rod 22 is provided with a magnet 7, and the end of the piston seat 21 is provided with a sensor 8 for detecting the position of the magnet 7, wherein the sensor 8 at this position can be a Hall sensor 8 or the like. Specifically, when the piston rod 22 moves to the left end of the piston cavity, the sensor 8 cannot detect the position of the magnet 7, and when the piston rod 22 moves to the right end of the piston cavity, the sensor 8 can detect the position of the magnet 7.

[0042] In this design, the number of reciprocating movements of the piston rod 22 can be detected by the sensor 8, and the oil supply amount of the rotary valve oil feeder can be counted. Specifically, the rotary valve oil feeder drives the valve core 12 to rotate through the direct current speed reducing motor, and completes the opening and closing of the oil path once every 180°. At the same time, the sensor 8 detects the oil supply information and feeds back to the main control system to complete the oil supply counting. In addition, when the sensor 8 detects the position of the piston rod 22 for a long time or cannot detect the position of the piston rod 22 for a long time, an alarm signal will be sent out to remind that the rotary valve oil feeder has a fault and the piston rod 22 has not moved for a long time.

[0043] In some embodiments, the end of the valve seat 11 away from the driving member 9 is plugged by a first plug 13, and the first plug 13 is detachably connected with the valve seat 11, preferably by screw connection, to increase the convenience of disassembly and assembly, and thus increase the convenience of assembly of the valve core 12.

[0044] In some embodiments, the end of the piston seat 21 away from the driving member 9 is plugged by a second plug 24, and the second plug 24 is detachably connected with the piston seat, preferably by screw connection, to increase the convenience of disassembly and assembly, and thus increase the convenience of assembly of the piston rod 22.

[0045] The utility model also provides a rotary valve oil feeding system, including above-mentioned rotary valve oil feeder, the rotary valve oil feeder at this position includes all technical features of above-mentioned rotary valve oil feeder. It can be understood that the rotary valve oil feeding system should also include other necessary components, which are not described in detail here.

[0046] In some embodiments, the rotary valve oil feeder uses a 24v direct current speed reducing motor as a driving device, and the single power is about 15w. Considering the problem of pressure drop in the field when directly using 24v direct current, the entire control system uses 22v alternating current power supply, so it is necessary to integrate at least 30w conversion power supply on the basis of the existing identifier function.

[0047] It has to be noted that, in the present document, relational terms are intended only to convey a relative position and that the use of these terms is intended to include the negative of the state (e.g. "a first element does not include a second element", "a first element does not exclude a second element") and the removal or addition of the elements between two relativity linked elements (e.g. "a first element between a second element and a third element" or "second element and a third element between a first element").

[0048] The foregoing is merely illustrative of the principles of the application and various modifications can be made by those skilled in the art without departing from the spirit and scope of the application. The above description is embodied in the form of specific examples. The application described and claimed herein can be modified and varied as desired. Such alternate, additional, and / or equivalent implementations should be considered as within the scope of the present application as defined in the claims.

Claims

1. A rotary valve type oiler, characterized in that, include: The valve seat assembly (1) includes a valve seat (11) and a valve core (12) rotatably disposed inside the valve cavity of the valve seat (11); The piston assembly (2) includes a piston seat (21) disposed on the side of the valve seat (11) and a piston rod (22) slidably disposed inside the piston chamber of the piston seat (21), wherein the piston rod (22) divides the piston chamber into a first oil chamber and a second oil chamber (23). The valve seat (11) is provided with a first oil supply passage (3), a second oil supply passage (4), a first oil return passage (5) and a second oil return passage (6). One end of the first oil supply passage (3) and the first oil return passage (5) are connected to the first oil chamber, and one end of the second oil supply passage (4) and the second oil return passage (6) are connected to the second oil chamber (23). The valve core (12) can control the synchronous opening and closing of the first oil supply circuit (3) and the second oil return circuit (6) and the synchronous opening and closing of the second oil supply circuit (4) and the first oil return circuit (5) by its own rotation.

2. The rotary valve type oiler according to claim 1, characterized in that, The first oil supply circuit (3) includes a first oil inlet (31) and a first oil supply port (32). One end of the first oil inlet (31) is connected to the valve cavity, and the other end is used to introduce lubricating oil. The first oil supply port (32) is used to connect the valve cavity and the first oil cavity. The valve core (12) is provided with a first connecting hole (121) along its radial direction. The first connecting hole (121) can connect the first oil inlet (31) and the first oil supply port (32) as the valve core (12) rotates, or disconnect the first oil inlet (31) and the first oil supply port (32).

3. The rotary valve type oiler according to claim 2, characterized in that, The second oil supply circuit (4) includes a second oil inlet (41) and a second oil supply port (42). One end of the second oil inlet (41) is connected to the valve cavity, and the other end is used to introduce lubricating oil. The second oil supply port (42) is used to connect the valve cavity and the second oil cavity (23). The valve core (12) is provided with a second connecting hole (122) along its radial direction. The second connecting hole (122) can connect the second oil inlet (41) and the second oil supply port (42) as the valve core (12) rotates, or disconnect the second oil inlet (41) and the second oil supply port (42).

4. The rotary valve type oiler according to claim 3, characterized in that, The first return oil passage (5) includes a first return oil port (51) and a first oil outlet (52). One end of the first oil outlet (52) is connected to the valve cavity, and the other end is used to lead out lubricating oil. The first return oil port (51) is used to connect the valve cavity and the first oil cavity. The valve core (12) is provided with a third connecting hole (123) along its radial direction. The third connecting hole (123) can connect the first return oil port (51) and the first oil outlet (52) as the valve core (12) rotates, or disconnect the first return oil port (51) and the first oil outlet (52).

5. The rotary valve type oiler according to claim 4, characterized in that, The second oil return passage (6) includes a second oil return port (61) and a second oil outlet (62). One end of the second oil outlet (62) is connected to the valve cavity, and the other end is used to lead out lubricating oil. The second oil return port (61) is used to connect the valve cavity and the second oil cavity (23). The valve core (12) is provided with a fourth connecting hole (124) along its radial direction. The fourth connecting hole (124) can connect the second oil return port (61) and the second oil outlet (62) as the valve core (12) rotates, or disconnect the second oil return port (61) and the second oil outlet (62).

6. The rotary valve type oiler according to claim 5, characterized in that, The first connecting hole (121) and the fourth connecting hole (124) extend in the same direction, the second connecting hole (122) and the third connecting hole (123) extend in the same direction, and the first connecting hole (121) and the fourth connecting hole (124) extend in a direction perpendicular to the second connecting hole (122) and the third connecting hole (123).

7. The rotary valve type oiler according to claim 5, characterized in that, The first oil outlet (52), the first oil inlet (31), the second oil inlet (41) and the second oil outlet (62) are arranged sequentially on the valve seat (11) along the axial direction of the valve seat (11).

8. The rotary valve type oiler according to claim 5 or 7, characterized in that, The first oil supply port (32) extends obliquely, and one end of the first oil return port (51) is connected to the valve cavity, and the other end is connected to the first oil supply port (32); And / or, the second oil supply port (42) extends obliquely, one end of the first oil return port (51) is connected to the valve cavity, and the other end is connected to the first oil supply port (32).

9. The rotary valve type oiler according to claim 1, characterized in that, A magnet (7) is provided at one end of the piston rod (22), and a sensor (8) for detecting the position of the magnet (7) is provided at the end of the piston seat (21).

10. A rotary valve type oil supply system, characterized in that, Includes the rotary valve type oiler as described in any one of claims 1 to 9.

Images