A fast opening and closing switching valve for oil mist lubrication system and its control system

Abstract

The present invention belongs to the technical field of oil mist lubrication system, and specifically relates to a fast opening and closing switching valve for oil mist lubrication system and its control system, comprising a main oil mist box and a spare oil mist box, the main oil mist box and the spare oil mist box are respectively connected to a group of piston valve bodies, the left valve body and the right valve body are both provided with vertically arranged piston channels, the tops of the left valve body and the right valve body are connected to the piston valve body; the controller seat is fixed on the oil mist outlet pipe, the top of the controller seat is connected to the high-pressure air intake pipe, the bottom of the controller seat is connected to the left air intake pipe group and the right air intake pipe group, the piston valve body is provided with a columnar pressure block, and the bottom of the columnar pressure block is connected to the piston through a connecting rod. Compared with the prior art, the present invention has the following advantages: by reasonably setting the internal structure of the valve core and the controller seat, the valve core moves according to a predetermined path, realizing the automatic switching of "one open and one closed", reducing manual control, fast execution speed, realizing the continuous operation of the oil mist lubrication system, and extending the service life of the oil mist system.

Description

Technical Field

[0001] The invention belongs to the technical field of oil mist lubrication systems, and in particular relates to a fast opening and closing switching valve for an oil mist lubrication system and a control system thereof. Background Art

[0002] In order to ensure the reliability of lubrication in the prior art, two sets of oil mist systems are usually set up, namely the main oil mist system and the backup oil mist system. The two systems serve as backup for each other, and the switching of the "main" and "backup" oil mist systems is achieved through a switching valve. The switching valve uses two piston valves in a switching system as the oil mist inlet, which are respectively connected to the oil mist outlets of the "main" and "backup" oil mist systems, and the outlets of the switching valves share an outlet channel; during operation, the two piston valves are usually operated independently, which has the problems of cumbersome operation, slow speed, and easy error, and is prone to double opening or double closing problems, making it difficult to achieve continuous oil mist supply; therefore, it is necessary to study how to make the two pistons "one open and one closed"; in addition, there is a certain lag when the staff receives the switching signal and then switches, which will affect the service life of the lubrication system. Therefore, it is necessary to further study how to switch the oil mist lubrication system. Summary of the invention

[0003] The purpose of the present invention is to provide a fast opening and closing switching valve and a control system for an oil mist lubrication system in order to solve the problem that the existing switching valve is cumbersome to operate and prone to errors, thereby affecting the service life of the lubrication system.

[0004] The present invention is realized by the following technical scheme: a fast opening and closing switching valve for oil mist lubrication system, comprising a main oil mist box and a spare oil mist box, the main oil mist box and the spare oil mist box are respectively connected to a group of piston valve bodies, the main oil mist box and the spare oil mist box are fixed with a mounting base, the mounting base is fixed with a valve body assembly, the valve body assembly comprises a left valve body and a right valve body, the left valve body and the right valve body are both provided with a vertically arranged piston channel, an intermediate channel connecting the two piston channels is provided between the left valve body and the right valve body, and the top of the intermediate channel is connected to an oil mist outlet pipe; the tops of the left valve body and the right valve body are fixed with piston flanges and then connected to the piston valve bodies;

[0005] The oil mist outlet pipe is fixed with a controller seat, the top of the controller seat is connected to a high-pressure air intake pipe, the position below the controller seat corresponding to the left valve body is connected to an upper left air intake pipe and a lower left air intake pipe, and the position below the controller seat corresponding to the right valve body is connected to an upper right air intake pipe and a lower right air intake pipe;

[0006] The upper left air intake pipe and the lower left air intake pipe are respectively connected to the upper end and the lower end of the left piston valve body, and the upper right air intake pipe and the lower right air intake pipe are respectively connected to the upper end and the lower end of the right piston valve body; a columnar pressure block is provided in the piston valve body, and the bottom of the columnar pressure block is connected to the piston through a connecting rod, and the piston is located below the piston pressure flange.

[0007] Specifically, an annular groove is provided on the outer periphery of the bottom of the piston, and an O-ring is clamped in the annular groove; an annular clamping table matching the bottom of the piston is provided at the bottom of the piston passage, and the piston is pressed against the annular clamping table under the pressure of high-pressure gas, playing a role of strict sealing.

[0008] Installation grooves are provided on the front sides of the left valve body and the right valve body. An observation window penetrating the piston passage is provided at the center of the installation groove. Here, the observation window is for observing the working state inside the piston passage, and a transparent partition is fixed in the installation groove.

[0009] Specifically, a control groove is provided inside the controller seat. Three ventilation holes are provided above the control groove, namely a middle ventilation hole, a front ventilation hole, and a rear ventilation hole. The middle ventilation hole is connected to the high-pressure inlet pipe; two groups of folded channels are provided below the control groove. The left folded channel is connected to the upper left inlet pipe and the lower left inlet pipe, and the right folded channel is connected to the upper right inlet pipe and the lower right inlet pipe; a valve core is provided in the control groove. An earthen-shaped channel one and an earthen-shaped channel two are provided on the valve core and are separated from each other. When the valve core is in state one, the earthen-shaped channel one connects the high-pressure inlet pipe with the lower left inlet pipe and the upper right inlet pipe, and the earthen-shaped channel two connects the front ventilation hole with the upper left inlet pipe and the lower right inlet pipe; when the valve core is in state two, the earthen-shaped channel two connects the high-pressure inlet pipe with the upper left inlet pipe and the lower right inlet pipe, and the earthen-shaped channel one connects the rear ventilation hole with the lower left inlet pipe and the upper right inlet pipe;

[0010] The valve core is fixed in the control groove through a valve core lock nut. A folded limit groove is provided at the part of the valve core located at the valve core lock nut. A limit hole is provided on the side wall of the valve core lock nut. A movable limit pin is provided in the limit hole. The limit pin cooperates with the folded limit groove, enabling the valve core to move within a certain range along a trajectory to achieve the switching of states;

[0011] A clamping hole is provided at the part of the valve core located outside the valve core lock nut, and a control rod is inserted into the clamping hole.

[0012] A control system for a quick-opening and closing switching valve of an oil mist lubrication system includes a control mechanism. After receiving a switching signal, the control mechanism sends a control instruction to the control rod, causing the valve core to rotate and move horizontally, so that the valve core switches from state one to state two or from state two to state one. The switching process is completed within 0.1 s to achieve continuous oil mist supply;

[0013] The folded limit groove is provided on the outer periphery of the valve core. After unfolding, it is a C-shaped structure, including a horizontal section and a vertical section. The vertical section is parallel to the central axis of the valve core, and the length of the horizontal section is 1 / 4 of the circumference of the valve core at the corresponding position;

[0014] When switching from state 1 to state 2, the valve core rotates 90° counterclockwise and moves inward by a fixed length; when switching from state 2 to state 1, it moves outward by a fixed length and the valve core rotates 90° clockwise; the fixed length here is the length of the vertical section.

[0015] The main oil mist machine box and the standby oil mist machine box are respectively provided with an oil mist generator, an air release valve, a data acquisition module, a wireless communication module and a data processing module. The normal range of each group of data is preset in the data processing module, and an abnormal signal is generated if the normal range is exceeded. The data processing module receives the information collected by the data acquisition module, and transmits a switching signal to the control mechanism if an abnormal signal is obtained after data processing and analysis.

[0016] The data acquisition module is used to collect the oil mist flow data, oil mist pressure data, oil temperature data, air leakage signal, and air blockage signal of the corresponding oil mist box;

[0017] By collecting the above signals, the working conditions of the main oil mist box and the standby oil mist box can be effectively monitored, effectively avoiding the sudden interruption of the oil mist generating equipment affecting the continuous supply of oil mist.

[0018] In addition, liquid level sensors are provided in the main oil mist box and the standby oil mist box respectively. When the liquid level is detected to be lower than the set value, the corresponding oil inlet pump is started to replenish oil.

[0019] Compared with the prior art, the present invention has the following advantages: by reasonably setting the structure of the valve core, the control rod controls the valve core to move along a predetermined path to realize state change, and the high-pressure intake pipe used to control the state of the piston valve is connected with the corresponding intake pipe respectively to realize "one open and one closed"; the data sampling module monitors the working conditions of the main oil mist box and the standby oil mist box, and the control mechanism sends a control instruction after an abnormal signal appears, so that the control rod adjusts the valve core to realize the switching between the main and standby oil mist boxes, reduce manual control, execute quickly, realize continuous operation of the oil mist lubrication system, and extend the service life of the oil mist system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of this installation base.

[0021] Figure 2 It is a structural diagram of the left valve body.

[0022] Figure 3 It is a structural schematic diagram of the right valve body.

[0023] Figure 4 It is a structural diagram of the piston flange.

[0024] Figure 5 It is a schematic diagram of the structure of the piston.

[0025] Figure 6 It is a schematic diagram of the cross-sectional structure in state one.

[0026] Figure 7 It is the left side view of the left valve body in state one.

[0027] Figure 8 yes Figure 7 Enlarged view of point D in the middle.

[0028] Fig. 9 This is the right side view of the right valve body in state one.

[0029] Fig.10 yes Fig. 9 Enlarged view of point C in the middle.

[0030] Fig.11 It is a schematic diagram of the cross-sectional structure in state two.

[0031] Fig.12 It is the left view of the left valve body in state two.

[0032] Fig.13 yes Fig.12 Enlarged view of point B in the middle.

[0033] Fig.14 It is the right view of the right valve body in state two.

[0034] Fig.15 yes Fig.14 Enlarged view of point A in the middle.

[0035] Fig.16 This is a bottom view of the controller base.

[0036] Fig.17 This is a front cross-sectional view of the valve core in state 1.

[0037] Fig.18 yes Fig.17 Cross-section at point B.

[0038] Fig.19 yes Fig.17 Cross-section view at point A.

[0039] Fig. 20 This is a front cross-sectional view of the valve core in state 2.

[0040] Fig.21 It is a schematic diagram of the expansion of the folding limit groove.

[0041] Among them, 1-left valve body, 11-piston channel, 12-left air intake pipe, 121-upper left air intake pipe, 122-lower left air intake pipe, 13-annular card table, 14-left convex hole, 15-left top hole, 16-inner concave hole, 17-installation groove, 18-observation window, 2-right valve body, 21-middle channel, 22-right air intake pipe, 221-upper right air intake pipe, 222-lower right air intake pipe, 23-right top hole, 3-piston valve body, 31-connecting rod, 4-piston, 41-O-type gasket, 42-annular groove, 43-connecting through hole, 5-piston pressure flange, 51-through hole, 6-controller seat, 60-control slot, 61-middle vent, 62-front vent, 63-rear vent, 64-right outer folding channel, 641-export four, 65-right inner folding channel, 651-export three, 66-left outer folding channel, 661-export two, 67-left inner folding channel, 671-export one, 7-valve core, 71-earth type channel two, 72-earth type channel one, 73-folding limit groove, 731-horizontal section, 732-vertical section, 74-control rod, 75-positioning hole, 8-oil mist outlet pipe, 81-valve core lock nut, 82-high pressure air inlet pipe, 9-mounting base, 91-left mounting hole, 92-right mounting hole. DETAILED DESCRIPTION

[0042] The present invention is further described below in conjunction with the accompanying drawings.

[0043] The following will be combined with the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0044] like Figure 1-21As shown in the figure, a quick-opening and closing switching valve for an oil mist lubrication system includes a main oil mist machine box and a standby oil mist machine box. The main oil mist machine box and the standby oil mist machine box are respectively connected to a group of piston valve bodies. A mounting base 9 is fixedly installed on the main oil mist machine box and the standby oil mist machine box. The mounting base 9 includes a left mounting hole 91 and a right mounting hole 92. A valve body assembly is fixedly installed on the mounting base 9. The valve body assembly includes a left valve body 1 and a right valve body 2. Vertical piston channels 11 are provided in both the left valve body 1 and the right valve body 2. An intermediate channel 21 connecting the two piston channels 11 is provided between the left valve body 1 and the right valve body 2. The top of the intermediate channel 21 is connected to an oil mist outlet pipe 8 through a connection outlet 24. On one side of the left valve body close to the right valve body, there is a concave hole 16. On one side of the right valve body close to the left valve body, there is a connecting protrusion matching the concave hole. On the top of the left valve body 1, there is a left top hole 15 matching the bottom of the piston gland 5. On the bottom of the left valve body 1, there is a left convex hole 14 matching the right mounting hole 92. On the top of the right valve body 2, there is a right top hole 23 matching the bottom of the piston gland 5. After the piston gland 5 is fixedly connected to the tops of the left valve body 1 and the right valve body 2, they are connected to the piston valve body 3.

[0045] A controller seat 6 is fixedly installed on the oil mist outlet pipe 8. A control groove 60 is provided in the controller seat 6. Above the control groove 60, there are three ventilation holes, namely an intermediate ventilation hole 61, a front ventilation hole 62, and a rear ventilation hole 63. The intermediate ventilation hole 61 is connected to a high-pressure inlet pipe 82.

[0046] Two sets of folded channels are provided below the control groove 60. The left folded channel includes a left inner folded channel 67 and a left outer folded channel 66. The outlet 671 of the left inner folded channel 67 is connected to a left upper inlet pipe 121. The outlet 661 of the left outer folded channel 66 is connected to a left lower inlet pipe 122. The right folded channel includes a right inner folded channel 65 and a right outer folded channel 64. The outlet 651 of the right inner folded channel 65 is connected to a right upper inlet pipe 221. The outlet 641 of the right outer folded channel 64 is connected to a right lower inlet pipe 222.

[0047] A valve core 7 is provided in the control groove 60. A soil-shaped channel one 72 and a soil-shaped channel two 71 are provided on the valve core 7 and are separated from each other. The valve core 7 is fixed in the control groove 60 through a valve core lock nut 81. A folded limit groove 73 is provided on the part of the valve core 7 at the valve core lock nut 81. The folded limit groove 73 is provided on the outer periphery of the valve core 7 and is in a C-shaped structure after unfolding, including a horizontal section 731 and a vertical section 732. The vertical section 732 is parallel to the central axis of the valve core 7, and the length of the horizontal section 731 is 1 / 4 of the circumference of the valve core 7 at the corresponding position.

[0048] The side wall of the valve core lock nut 81 is provided with a limiting hole 811, and a movable limiting pin 812 is provided in the limiting hole 811. The limiting pin 812 cooperates with the folding limiting groove 73 to enable the valve core 7 to move along a trajectory within a certain range to achieve state switching; the part of the valve core 7 located outside the valve core lock nut 81 is provided with a locking hole 75, and a control rod 74 is inserted in the locking hole 75;

[0049] The upper left air intake pipe 121 and the lower left air intake pipe 122 are respectively connected to the upper end and the lower end of the left piston valve body 3 for the left air intake pipe 12, and the upper right air intake pipe 221 and the lower right air intake pipe 222 are respectively connected to the upper end and the lower end of the right piston valve body 3 for the right air intake pipe 22; a columnar pressure block is provided in the piston valve body 3 (which is a conventional technology in the art, not an innovation of the present invention, and will not be discussed here), and the bottom of the columnar pressure block is connected to the piston 4 through a connecting rod 31, and the piston 4 is located below the piston pressure flange 5;

[0050] The outer periphery of the bottom of the piston 4 is provided with an annular groove 42, and an O-type gasket 41 is clamped in the annular groove 42. The piston 4 is provided with a connecting through hole 43 that penetrates the piston 4, so that the connecting rod can be fixed to the piston 4 after passing through. The piston flange 5 is provided with a through hole 51 that penetrates the piston flange 5, so that the connecting rod can be connected to the piston 4 after passing through.

[0051] An annular clamping platform 13 matching the bottom of the piston 4 is provided at the bottom of the piston channel 11. The piston 4 is pressed tightly against the annular clamping platform 13 under the pressure of the high-pressure gas to achieve a tight sealing effect.

[0052] A control system for a fast opening and closing switching valve for an oil mist lubrication system, comprising a control mechanism, which sends a control instruction to a control rod 74 after receiving a switching signal, and completes rotation and advancement through a manipulator or a cylinder assembly (which is the prior art in the art and is not an improvement point of the present invention), so that the valve core 7 rotates and moves in the horizontal direction, so that the valve core 7 switches from state 1 to state 2 or from state 2 to state 1. When switching from state 1 to state 2, the valve core 7 rotates 90° counterclockwise and moves inward by a fixed length; when switching from state 2 to state 1, the valve core 7 moves outward by a fixed length and rotates 90° clockwise; the fixed length here is the length of the vertical section 732, and the switching process is completed within 0.1s, so that continuous oil mist supply is realized;

[0053] like Figure 6-10 As shown, when the valve core is in state one, the earth-shaped channel one 72 connects the high-pressure air intake pipe 82 with the lower left air intake pipe 122 and the upper right air intake pipe 221, and the earth-shaped channel two 71 connects the front air vent 62 with the upper left air intake pipe 121 and the lower right air intake pipe 222;

[0054] like Figure 11-15As shown, when the valve core is in state two, the earth-shaped channel two 71 makes the high-pressure air intake pipe 82 communicate with the upper left air intake pipe 121 and the lower right air intake pipe 222, and the earth-shaped channel one 72 makes the rear vent hole 63 communicate with the lower left air intake pipe 122 and the upper right air intake pipe 221;

[0055] It can be seen that through the reasonable design of the channel inside the valve core 7 and the reasonable coordination with the internal structure of the controller seat 6, the left valve body 1 and the right valve body 2 can realize an open and a closed state, thereby realizing the switching between the main and standby oil mist chassis, reducing manual control, fast execution speed, and ensuring continuous operation of the oil mist lubrication system.

[0056] In actual use, the main oil mist box and the standby oil mist box are respectively provided with an oil mist generator, an air release valve, a data acquisition module, a wireless communication module and a data processing module. The normal range of each group of data is preset in the data processing module, and an abnormal signal is generated if the normal range is exceeded. The data processing module receives the information collected by the data acquisition module, and transmits a switching signal to the control mechanism if an abnormal signal is obtained after data processing and analysis.

[0057] The data acquisition module is used to collect the oil mist flow data, oil mist pressure data, oil temperature data, air leakage signal, and air blockage signal of the corresponding oil mist box;

[0058] By collecting the above signals, the working conditions of the main oil mist box and the standby oil mist box can be effectively monitored, effectively avoiding the sudden interruption of the oil mist generating equipment affecting the continuous supply of oil mist;

[0059] In addition, liquid level sensors are provided in the main oil mist box and the standby oil mist box respectively. When the liquid level is detected to be lower than the set value, the corresponding oil inlet pump is started to replenish oil. Example 2

[0060] like Figure 2-3 As shown, on the basis of Example 1, the front sides of the left valve body 1 and the right valve body 2 are provided with a mounting groove 17, and the center of the mounting groove 17 is provided with an observation window 18 that passes through the piston channel 11, where the observation window 18 is for observing the working status in the piston channel 11, and a transparent partition is fixed in the mounting groove 17.

[0061] It is convenient for staff to observe the working status.

[0062] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0063] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fast opening and closing switching valve for an oil mist lubrication system, comprising a main oil mist box and a spare oil mist box, wherein the main oil mist box and the spare oil mist box are respectively connected to a group of piston valve bodies, characterized in that: A fixed mounting base is provided on the main oil mist machine case and the spare oil mist machine case. A valve body assembly is fixed on the mounting base. The valve body assembly includes a left valve body and a right valve body. Vertical piston channels are provided in both the left valve body and the right valve body. An intermediate channel connecting the two piston channels is provided between the left valve body and the right valve body. The top of the intermediate channel is connected to an oil mist outlet pipe. The piston gland is fixed on the tops of the left valve body and the right valve body and then connected to the piston valve body. A controller seat is fixed on the oil mist outlet pipe. The high-pressure inlet pipe is connected above the controller seat. The left upper inlet pipe and the left lower inlet pipe are connected below the controller seat corresponding to the position of the left valve body. The right upper inlet pipe and the right lower inlet pipe are connected below the controller seat corresponding to the position of the right valve body. A control slot is provided in the controller seat. Three ventilation holes are provided above the control slot, namely an intermediate ventilation hole, a front ventilation hole and a rear ventilation hole. The intermediate ventilation hole is connected to the high-pressure inlet pipe. Two groups of folded channels are provided below the control slot. The left folded channel is connected to the left upper inlet pipe and the left lower inlet pipe. The right folded channel is connected to the right upper inlet pipe and the right lower inlet pipe. A valve core is provided in the control slot. An earthenware-shaped channel one and an earthenware-shaped channel two are provided on the valve core and are separated from each other. When the valve core is in state one, the earthenware-shaped channel one connects the high-pressure inlet pipe with the left lower inlet pipe and the right upper inlet pipe. The earthenware-shaped channel two connects the front ventilation hole with the left upper inlet pipe and the right lower inlet pipe. When the valve core is in state two, the earthenware-shaped channel two connects the high-pressure inlet pipe with the left upper inlet pipe and the right lower inlet pipe. The earthenware-shaped channel one connects the rear ventilation hole with the left lower inlet pipe and the right upper inlet pipe. The valve core is fixed in the control slot through a valve core lock nut. A folded limit slot is provided at the part of the valve core located at the valve core lock nut. A limit hole is provided on the side wall of the valve core lock nut. A limit pin is movably provided in the limit hole. The folded limit slot is provided on the outer periphery of the valve core. After being unfolded, it is in a U-shaped structure, including a horizontal section and a vertical section. The vertical section is parallel to the central axis of the valve core. The length of the horizontal section is 1 / 4 of the circumference of the valve core at the corresponding position. A positioning hole is provided at the part of the valve core located outside the valve core lock nut. A control rod is inserted into the positioning hole. The left upper inlet pipe and the left lower inlet pipe are respectively connected to the upper end and the lower end of the left piston valve body. The right upper inlet pipe and the right lower inlet pipe are respectively connected to the upper end and the lower end of the right piston valve body. A columnar pressing block is provided in the piston valve body. The bottom of the columnar pressing block is connected to the piston through a connecting rod. The piston is located below the piston gland.

2. A fast opening and closing switching valve for an oil mist lubrication system as claimed in claim 1, characterized in that: An annular groove is provided on the outer periphery of the bottom of the piston. An O-ring is clamped in the annular groove. An annular clamping table matching the bottom of the piston is provided at the bottom of the piston channel.

3. A fast opening and closing switching valve for an oil mist lubrication system as claimed in claim 1, characterized in that: Mounting grooves are provided on the front sides of the left valve body and the right valve body. An observation window penetrating the piston channel is provided at the center of the mounting groove. A transparent partition is fixed in the mounting groove.

4. A control system for a fast opening and closing switching valve for an oil mist lubrication system as claimed in claim 1, characterized in that: It includes a control mechanism. After receiving a switching signal, the control mechanism sends a control instruction to the control rod to rotate the valve core and move it horizontally, so that the valve core is switched from state one to state two or from state two to state one.

5. A control system for a fast opening and closing switching valve for an oil mist lubrication system as claimed in claim 4, characterized in that: When switching from state one to state two, the valve core rotates counterclockwise by 90° and moves inward by a fixed length. When switching from state two to state one, it moves outward by a fixed length and the valve core rotates clockwise by 90°.

6. A control system for a fast opening and closing switching valve for an oil mist lubrication system as claimed in claim 4, characterized in that: The main oil mist machine box and the standby oil mist machine box are both provided with an oil mist generator, an air discharge valve, a data acquisition module, a wireless communication module and a data processing module, wherein the data processing module receives information collected by the data acquisition module, and transmits a switching signal to the control mechanism if an abnormal signal is obtained after data processing and analysis; The data acquisition module is used to collect the oil mist flow data, oil mist pressure data, oil temperature data, air leakage signal, and air blockage signal of the corresponding oil mist box.

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