Multi-way pressurized electromagnetic lubricator

Abstract

The present invention relates to a multi-way pressurized electromagnetic oiler in the field of oiler technology. The oiler comprises a valve block, a piston, a two-position, two-way normally open electromagnetic valve, and a one-way valve. The valve block is provided with a vertical piston chamber, the lower end of which is provided with an inlet A and an outlet a. Outlet a is open at one end facing away from the piston chamber. The upper portion of the piston chamber is provided with an inlet B. The piston chamber, located between inlets A and B, is provided with a piston in a sealing and sliding manner along its axial direction. The piston chamber, located below the piston, is provided with a return spring for returning the piston to its original position. The present invention utilizes a two-position, two-way normally open electromagnetic valve and, through the provision of a first connecting channel and a second connecting channel, achieves the same functions as a conventional electromagnetic oiler while simplifying the oil supply structure, saving costs, and facilitating control.

Description

Technical Field

[0001] The present invention relates to the technical field of oil feeders, in particular to a multi-channel pressurized electromagnetic oil feeder. Background Art

[0002] As the actuator of the intelligent lubrication system, the electromagnetic lubricator is mainly used to control and open the oil circuit, and transmit the signal detected by the flow sensor to the main control system through the information identifier. The information processing module executes the instructions sent by the main control system to control the opening and closing of the electromagnetic lubricator valve to realize the oil supply control of the lubrication point.

[0003] Currently, the solenoid valves in the existing multi-way electromagnetic oil feeders all use three-position three-way valves, which makes the oil supply structure complex, the cost high, and inconvenient to control. Summary of the Invention

[0004] The object of the present invention is to provide a multi-way pressurized electromagnetic oil feeder in order to solve the above problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] A multi-way pressurized electromagnetic oil feeder includes a valve block, a piston, a two-position, two-way normally open solenoid valve, and a one-way valve. The valve block is provided with a vertical piston chamber, with an inlet A and an outlet a provided at the lower end of the piston chamber. Outlet a is open at one end facing away from the piston chamber. An inlet B is provided at the upper end of the piston chamber. The piston chamber, located between inlets A and B, is axially sealed and slidingly engaged with a piston. The piston chamber, located below the piston, is provided with a return spring for returning the piston. The valve block is provided with a first connecting channel and a second connecting channel extending therethrough from top to bottom. The first connecting channel is connected to inlet B, and the second connecting channel is connected to inlet A via the one-way valve.

[0007] There are at least two valve blocks, the multiple valve blocks are sealed together front and back, the first connecting channels in the multiple valve blocks are correspondingly connected, and the second connecting channels in the multiple valve blocks are correspondingly connected, and the outer ends of the first connecting channels and the second connecting channels in the two outer valve blocks are detachably sealed with first sealing members;

[0008] A vertical valve cavity is provided on the upper end face of any of the valve blocks, the lower end of the valve cavity is connected to the second connecting channel, and an outlet b and an inlet C corresponding to the inlet B are provided in the middle of the valve cavity. The inlet C is open at one end away from the valve cavity, and a two-position, two-normally open solenoid valve coaxial with it is sealed and connected in the valve cavity. The valve body of the two-position, two-normally open solenoid valve corresponding to the first connecting channel is provided with a horizontal through hole coaxial with the first connecting channel, and the valve body of the two-position, two-normally open solenoid valve corresponding to the horizontal through hole is provided with an annular groove along its radial direction for ensuring that the outlet b and the inlet C are always connected, and a vertical hole is provided on the lower end face of the two-position, two-normally open solenoid valve, a valve core is provided in the vertical hole, and the upper end of the vertical hole is connected with the horizontal through hole.

[0009] Preferably, the upper end of the return spring is correspondingly connected to the center of the bottom of the piston, and the lower end of the return spring is correspondingly connected to the piston cavity.

[0010] Preferably, the valve block is further provided with a detection member for detecting the movement state of the piston.

[0011] Preferably, the detection member is a proximity switch, which is coaxially arranged with the piston, and the detection end of the proximity switch faces the piston.

[0012] Preferably, a hollow screw plug coaxial with the piston is provided at the lower end of the valve block, the detection end of the detection member extends into the interior of the hollow screw plug, and the detection member is correspondingly connected to the hollow screw plug.

[0013] Preferably, the valve block is provided with an adjusting member for adjusting the reset position of the piston.

[0014] Preferably, the adjusting member is an adjusting screw coaxial with the piston, the adjusting screw is threadedly engaged with the valve block, the screw end of the adjusting screw extends into the piston cavity and abuts against the middle of the upper end surface of the piston.

[0015] Preferably, the upper end face of the valve block is provided with a blind hole coaxial with the piston, a threaded hole is provided in the middle of the bottom of the blind hole, and the lower end of the threaded hole is connected to the piston cavity, the adjusting screw is threadedly matched with the threaded hole, and the open end of the blind hole is detachably sealed and connected with a second seal.

[0016] Preferably, the one-way valve includes a fixing ring, a conical cavity is provided at the end of the inlet A away from the piston cavity, and the small mouth end of the conical cavity is connected to the corresponding second connecting channel, a fixing ring coaxial with the inlet A is provided inside the inlet A, and a spring matching and coaxial with the conical cavity is provided at one end of the fixing ring corresponding to the conical cavity, and a sphere that can seal with the conical cavity is provided at the end of the spring away from the fixing ring.

[0017] Preferably, the valve block is provided with mounting holes running through the front and rear, and all the mounting holes in the valve block are coaxially arranged.

[0018] The beneficial effects are:

[0019] 1. Using a two-position, two-position normally open solenoid valve and setting up the first and second connecting channels, it can achieve the same function as the traditional electromagnetic lubricator while simplifying the oil supply structure, saving costs and facilitating control;

[0020] 2. According to the actual oil demand of the equipment, you can select the appropriate number of valve blocks for superposition to achieve the function of controlling multiple oil outputs through one oil inlet, saving the number of solenoid valves used and facilitating the integration of oil supply;

[0021] 3. All valve blocks are connected in parallel with a common oil circuit to form a centralized oil supply system. By adjusting the oil supply amount of different valve blocks, more parameter settings can be achieved.

[0022] Additional technical features and advantages of the present invention will be more clearly explained in the following description, or can be understood through specific practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following detailed description, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 It is a structural schematic diagram of the present invention;

[0025] Figure 2 is a cross-sectional view of the first valve block in the present invention;

[0026] Figure 3 is a cross-sectional view of the second valve block of the present invention;

[0027] Figure 4 This is a schematic diagram of the oil supply principle when the present invention is powered on;

[0028] Figure 5 It is a schematic diagram of the oil supply principle when power is lost in the present invention.

[0029] The following are the descriptions of the reference numerals:

[0030] 1. Valve block; 11. Piston chamber; 111. Inlet A; 112. Outlet a; 113. Inlet B; 12. First connecting channel; 13. Second connecting channel; 14. Valve chamber; 141. Outlet b; 142. Inlet C; 2. Piston; 3. Two-position, two-way normally open solenoid valve; 4. Return spring; 5. Adjusting element; 6. First sealing element; 7. Detection element; 8. Hollow plug; 9. One-way valve; 91. Retaining ring; 92. Spring; 93. Ball; 10. Second sealing element. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0033] Example 1, as Figure 1-5 As shown, a multi-way pressurized electromagnetic oil feeder includes a valve block 1, a piston 2, a two-position, two-normally open electromagnetic valve 3, and a one-way valve 9. The valve block 1 is provided with a vertical piston chamber 11. The lower end of the piston chamber 11 is provided with an inlet A111 and an outlet a112. The outlet a112 is open at one end away from the piston chamber 11. The upper section of the piston chamber 11 is provided with an inlet B113. The chamber of the piston chamber 11 located between the inlets A111 and B113 is axially sealed and slidably fitted with the piston 2, and the chamber of the piston chamber 11 located below the piston 2 is provided with a return spring 4 for returning the piston 2. The valve block 1 is provided with a first connecting channel 12 and a second connecting channel 13 running through it from top to bottom. The first connecting channel 12 is correspondingly connected to the inlet B113, and the second connecting channel 13 is correspondingly connected to the inlet A111 through the one-way valve 9.

[0034] There are at least two valve blocks 1, and the multiple valve blocks 1 are sealed together front and back, and the first connecting channels 12 in the multiple valve blocks 1 are correspondingly connected, and the second connecting channels 13 in the multiple valve blocks 1 are correspondingly connected. The outer ends of the first connecting channels 12 and the second connecting channels 13 in the two outer valve blocks 1 are detachably and sealedly connected with the first sealing member 6;

[0035] A vertical valve chamber 14 is provided on the upper end surface of any valve block 1, and the lower end of the valve chamber 14 is connected to the second connecting channel 13. An outlet b141 and an inlet C142 corresponding to the inlet B113 are provided in the middle of the valve chamber 14. The inlet C142 is open at one end away from the valve chamber 14. A two-position, two-normally open solenoid valve 3 coaxial with the two-position, two-normally open solenoid valve 3 is sealed and connected thereto. The valve body of the two-position, two-normally open solenoid valve 3 corresponding to the first connecting channel 12 is provided with a horizontal through hole coaxial with the first connecting channel 12. The valve body of the two-position, two-normally open solenoid valve 3 corresponding to the horizontal through hole is provided with an annular groove along its radial direction for ensuring that the outlet b141 and the inlet C142 are always connected. A vertical hole is provided on the lower end surface of the two-position, two-normally open solenoid valve 3, a valve core is provided in the vertical hole, and the upper end of the vertical hole is connected to the horizontal through hole.

[0036] In the above structure, when installing, the open end of the inlet C142 is connected to the oil source, and the open end of the outlet a112 is connected to the oil inlet pipeline of the equipment. When in use, Figure 4 and Figure 5When the solenoid valve is energized, the oil enters the first channel 12 and then enters the piston chamber 11 in all valve blocks 1, which is located above the piston 2. Then the piston 2 moves downward, compressing the return spring 4. At this time, the oil in the piston chamber 11 located below the piston 2 is discharged through the outlet a112. When the solenoid valve is de-energized, the return spring 4 is reset, thereby resetting the piston 2, and the oil inlet C142 stops flowing. Due to the reset of the piston 2, the oil in the piston chamber 11 located above the piston 2 enters the second connecting channel 13 through the two-position two-normally open solenoid valve 3, and then enters the inlet A111 through the one-way valve 9, realizing the oil replenishment function. Then the above actions are repeated to complete the oil supply function.

[0037] The advantages of this arrangement are: using a two-position, two-way normally open solenoid valve 3 and setting up the first connecting channel 12 and the second connecting channel 13, it can achieve the same function as a traditional electromagnetic oil feeder while simplifying the oil supply structure, saving costs and facilitating control; according to the actual oil demand of the equipment, an appropriate number of valve blocks 1 can be selected and stacked to achieve the function of controlling multiple oil outputs with one oil inlet, saving the number of solenoid valves used and facilitating the integration of oil supply;

[0038] During specific implementation, more parameter settings can be achieved by adjusting the oil supply amount of different valve plates. For example, the integrated system consists of 10 valve blocks. For example, the fixed flow rate of valve block 1 is set to 100 units, the fixed flow rate of valve block 2 is set to 10 units, the fixed flow rate of valve block 3 is set to 1 unit, the fixed flow rate of valve block 4 is set to 0.1 units, the fixed flow rate of valve block 5 is set to 0.01 units... and so on. The integration makes the oil supply control accuracy higher; for another example, if a single oil supply of 123.156 units is required, it is only necessary to integrate 18 valve blocks and 1 control valve plate, and set the oil output to one 100, two 10s, three 1s, one 0.1, five 0.01s and six 0.001s respectively.

[0039] Example 2, based on Example 1, the upper end of the return spring 4 is correspondingly connected to the center of the bottom of the piston 2, and the lower end of the return spring 4 is correspondingly connected to the piston cavity 11; this arrangement can achieve the reset of the piston 2 through the restoring force of the return spring 4.

[0040] Embodiment 3, based on embodiment 1, the valve block 1 is further provided with a detection member 7 for detecting the motion state of the piston 2;

[0041] The detection member 7 is a proximity switch, which is coaxially arranged with the piston 2, and the detection end of the proximity switch faces the piston 2;

[0042] The lower end of the valve block 1 is provided with a hollow screw plug 8 coaxial with the piston 2, the detection end of the detection member 7 extends into the interior of the hollow screw plug 8, and the detection member 7 is correspondingly connected to the hollow screw plug 8;

[0043] The lower end of the piston cavity 11 is open, and the hollow screw plug 8 is sealedly connected to the open end of the piston cavity 11, while the upper end of the hollow screw plug 8 is closed;

[0044] Such a setting can be used for fault detection through the proximity switch, and can also be used as a trigger switch to realize automatic control of the on and off power of the solenoid valve, forming system feedback; the detection component 7 can also be a sensor to collect working status signals and feedback whether the valve plate is working normally.

[0045] Embodiment 4, based on embodiment 1, the valve block 1 is provided with an adjusting member 5 for adjusting the reset position of the piston 2;

[0046] The adjusting member 5 is an adjusting screw coaxial with the piston 2. The adjusting screw is threadedly engaged with the valve block 1. The end of the screw of the adjusting screw extends into the piston cavity 11 and abuts against the middle of the upper end surface of the piston 2. This arrangement allows the amplitude of the up and down movement of the piston 2 to be adjusted by adjusting the position of the adjusting member 5, thereby achieving the function of controlling the oil output. That is, the adjusting screw limits the upward stroke of the piston 2. The more the adjusting screw is rotated downward, the smaller the reciprocating stroke of the piston 2 each time, and the smaller the oil output. Conversely, the more the adjusting screw is adjusted upward, the larger the reciprocating stroke of the piston 2 each time, and the larger the oil output.

[0047] The upper end face of the valve block 1 is provided with a blind hole coaxial with the piston 2, and a threaded hole is provided in the middle of the bottom of the blind hole, and the lower end of the threaded hole is connected to the piston chamber 11. The adjusting screw is threadedly engaged with the threaded hole, and the open end of the blind hole is detachably sealed with a second sealing member 10. This arrangement can prevent oil leakage from the valve block and ensure sealing.

[0048] Embodiment 5, on the basis of embodiment 1, the one-way valve 9 includes a fixing ring 91, a conical cavity is provided at the end of the inlet A111 away from the piston cavity 11, and the small mouth end of the conical cavity is connected to the corresponding second connecting channel 13, a fixing ring 91 is provided inside the inlet A111 which is coaxial with it, and a spring 92 is provided which matches and is coaxial with it at the end of the fixing ring 91 corresponding to the conical cavity, and a ball 93 which can be sealed with the conical cavity is provided at the end of the spring 92 away from the fixing ring 91. Such an arrangement can elastically squeeze the ball 93 through the spring, and the ball 93 is sealed with the conical cavity, so that the oil in the second connecting channel 13 can enter the piston cavity 11, while the oil in the piston cavity 11 cannot enter the second connecting channel 13.

[0049] Example 6. Based on Example 1, the valve block 1 is provided with mounting holes that pass through the front and back, and the mounting holes in all the valve blocks 1 are coaxially arranged. Specifically, each valve block 1 is provided with multiple mounting holes, which can ensure stable matching between the valve blocks 1. This arrangement can fix all the valve blocks 1 together by bolts or other connecting parts.

[0050] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Multi-way pressurized electromagnetic oil feeder, characterized by: The invention comprises a valve block (1), a piston (2), a two-position two-way normally open solenoid valve (3), and a one-way valve (9), wherein the valve block (1) is provided with a vertical piston chamber (11), the lower end of the piston chamber (11) is provided with an inlet A (111) and an outlet a (112), the outlet a (112) being open at one end away from the piston chamber (11), the upper section of the piston chamber (11) is provided with an inlet B (113), the chamber of the piston chamber (11) between the inlet A (111) and the inlet B (113) is sealed and slidably fitted with a piston (2) along its axial direction, and the chamber of the piston chamber (11) below the piston (2) is provided with a reset spring (4) for resetting the piston (2); the valve block (1) is provided with a first connecting channel (12) and a second connecting channel (13) running through the front and back at intervals from top to bottom, the first connecting channel (12) is correspondingly connected to the inlet B (113), and the second connecting channel (13) is correspondingly connected to the inlet A (111) through the one-way valve (9); The valve blocks (1) are provided with at least two, and the plurality of valve blocks (1) are sealed and fitted together front and back, and the first connecting channels (12) in the plurality of valve blocks (1) are correspondingly connected, and the second connecting channels (13) in the plurality of valve blocks (1) are correspondingly connected, and the outer ends of the first connecting channels (12) and the second connecting channels (13) in the two outer valve blocks (1) are detachably sealed and connected with the first sealing member (6); A vertical valve cavity (14) is provided on the upper end face of any of the valve blocks (1), the lower end of the valve cavity (14) is communicated with the second connecting channel (13), an outlet b (141) and an inlet C (142) corresponding to the inlet B (113) are provided in the middle of the valve cavity (14), the inlet C (142) is open at one end away from the valve cavity (14), a two-position two-normally open solenoid valve (3) coaxial with the valve cavity (14) is sealed and connected thereto, the valve body of the two-position two-normally open solenoid valve (3) corresponding to the first connecting channel (12) is provided with a horizontal through hole coaxial with the first connecting channel (12), the valve body of the two-position two-normally open solenoid valve (3) corresponding to the horizontal through hole is provided with an annular groove along its radial direction for ensuring that the outlet b (141) and the inlet C (142) are always communicated, the lower end face of the two-position two-normally open solenoid valve (3) is provided with a vertical hole, a valve core is provided in the vertical hole, and the upper end of the vertical hole is communicated with the horizontal through hole; The upper end of the return spring (4) is correspondingly connected to the center of the bottom of the piston (2), and the lower end of the return spring (4) is correspondingly connected to the piston cavity (11); The valve block (1) is provided with an adjusting member (5) for adjusting the reset position of the piston (2); The adjusting member (5) is an adjusting screw coaxial with the piston (2), the adjusting screw being threadably engaged with the valve block (1), the screw end of the adjusting screw extending into the piston cavity (11) and resting against the middle of the upper end surface of the piston (2).

2. The multi-channel pressurized electromagnetic oil feeder according to claim 1, characterized in that: The valve block (1) is also provided with a detection member (7) for detecting the motion state of the piston (2).

3. The multi-channel pressurized electromagnetic oil feeder according to claim 2, characterized in that: The detection member (7) is a proximity switch, which is coaxially arranged with the piston (2), and the detection end of the proximity switch faces the piston (2).

4. The multi-channel pressurized electromagnetic oil feeder according to claim 2 or 3, characterized in that: The lower end of the valve block (1) is provided with a hollow screw plug (8) coaxial with the piston (2), the detection end of the detection member (7) extends into the interior of the hollow screw plug (8), and the detection member (7) and the hollow screw plug (8) are correspondingly connected.

5. The multi-channel pressurized electromagnetic oil feeder according to claim 1, characterized in that: The upper end surface of the valve block (1) is provided with a blind hole coaxial with the piston (2), a threaded hole is provided in the middle of the bottom of the blind hole, and the lower end of the threaded hole is connected to the piston cavity (11), the adjusting screw is threadedly engaged with the threaded hole, and the open end of the blind hole is detachably sealed and connected to a second sealing member (10).

6. The multi-channel pressurized electromagnetic oil feeder according to claim 1, characterized in that: The one-way valve (9) includes a fixed ring (91), an end of the inlet A (111) facing away from the piston chamber (11) is provided with a tapered cavity, and the small end of the tapered cavity is communicated with the corresponding second connecting channel (13), the interior of the inlet A (111) is provided with a fixed ring (91) coaxial with the inlet A (111), an end of the fixed ring (91) corresponding to the tapered cavity is provided with a spring (92) matching and coaxial with the inlet A (111), and an end of the spring (92) facing away from the fixed ring (91) is provided with a ball (93) capable of sealing with the tapered cavity.

7. The multi-channel pressurized electromagnetic oil feeder according to claim 1, characterized in that: The valve block (1) is provided with mounting holes that penetrate front and back, and all the mounting holes in the valve block (1) are coaxially arranged.

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