Dry oil adding equipment and adding method thereof

Abstract

The invention discloses dry oil adding equipment and an adding method for the dry oil adding equipment. The dry oil adding equipment comprises a frame, a dry oil pump, an electromagnetic reversing valve, a proportional overflow valve, a shuttle valve, a speed regulating valve, a pressure increasing valve and an oil separator, and an oil tank is fixedly connected to the lower portion of the frame; the grease pump is mounted at the top of the frame and connected to the oil tank; the electromagnetic directional valve is provided with an injection port, a first output port and a second output port; the proportional overflow valve is provided with an oil inlet, an oil outlet and a control oil port, the oil inlet is connected with the oil outlet end of the grease pump, the oil outlet is connected with the injection port, and the control oil port is connected to the oil tank; the shuttle valve is provided with two oil injection ports and a third output port; the speed regulating valve is arranged on the first oil conveying pipeline; the pressure increasing valve is arranged between the speed regulating valve and the first output port. The oil supply pressure and the oil supply speed can be adjusted according to the requirements of different instruments, the working condition threshold value of the whole set of dry oil adding equipment can be greatly increased, and the adaptability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of hot rolling mechanical equipment, and in particular to a dry oil adding device and an adding method thereof. Background Art

[0002] In mechanical equipment, especially in the mechanical equipment of hot rolling production line, lubrication plays a vital role. If the mechanical transmission equipment is not lubricated or poorly lubricated, it will be damaged in a short time, causing immeasurable losses. Therefore, equipment lubrication is very critical in the daily maintenance of mechanical equipment. In view of the current common equipment lubrication, it can be mainly divided into two categories: automatic lubrication and manual lubrication. The present invention mainly focuses on manual lubrication. At present, there are three common manual lubrication methods, namely, pneumatic pump, electric pump and hand pump. The refueling steps are as follows: (1) add dry grease to the dry oil pump; (2) move the oil pump or hand pump to the use position; (3) specify the lubrication position for refueling; (4) place it in the customized position after adding. Among them, the current pneumatic pump refueling method is mainly to transport the oil barrel through the triangular support point trolley, and place the dry oil pump inside the oil barrel. During the process, it must be used in conjunction with the oil barrel. There is a waste of dry oil in the barrel that cannot be effectively utilized. At the same time, the recycling of dry oil barrels as hazardous waste is relatively complicated. At the same time, the pneumatic pump cannot inject a pressure higher than its own rated power during the refueling process, resulting in the inability to meet the lubrication needs of some equipment. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a dry oil adding device, which can adjust the oil supply pressure or oil supply speed according to actual needs to meet the lubrication needs of different equipment.

[0004] The present invention also provides an adding method with the above-mentioned dry oil adding device.

[0005] According to a first aspect of the present invention, a dry oil adding device comprises: A frame, with universal wheels at the bottom, and a fuel tank fixedly connected to the bottom of the frame; A dry oil pump is installed on the top of the frame, and the oil inlet end of the dry oil pump is connected to the oil tank; The electromagnetic reversing valve is provided with an injection port, a first output port and a second output port; A proportional relief valve is provided with an oil inlet, an oil outlet and a control oil port, the oil inlet is connected to the oil outlet end of the dry oil pump, the oil outlet is connected to the injection port, and the control oil port is connected to the oil tank; The shuttle valve is provided with two oil injection ports and a third output port, and a first oil delivery pipeline and a second oil delivery pipeline are respectively provided between the two oil injection ports and the first output port, and the second output port; A speed regulating valve is arranged on the first oil pipeline; A boost valve, arranged between the speed regulating valve and the first output port; The oil separator is connected to the third output port, the oil separator is connected to an oil injection pipe, and the oil separator directly delivers the dry oil to the device through the oil injection pipe.

[0006] The dry oil adding equipment according to the embodiment of the present invention has at least the following beneficial effects: the oil supply pressure and oil supply speed can be adjusted according to the requirements of different equipment, and the operating threshold of the entire dry oil adding equipment can be greatly improved, thereby improving adaptability.

[0007] According to some embodiments of the present invention, tube reel wheels are provided on both sides of the frame, and the oil filling pipe is wound around the tube reel wheels.

[0008] According to some embodiments of the present invention, the dry oil pump comprises: The outer tube is provided with a first inner cavity and a second inner cavity from top to bottom, wherein the inner diameter of the first inner cavity is smaller than the inner diameter of the second inner cavity, so that a first step is provided between the first inner cavity and the second inner cavity; An inner tube is arranged from top to bottom, the inner tube is built into the outer tube, the inner tube comprises a first tube section and a second tube section arranged from top to bottom, the outer diameter of the first tube section is equal to the inner diameter of the first inner cavity, the outer diameter of the second tube section is equal to the inner diameter of the second inner cavity, and the second tube section is slidably matched with the second inner cavity, the length of the second tube section is less than the length of the second inner diameter, a spring is arranged between the end of the second tube section and the first step, and the spring is sleeved outside the first tube section; A stopper, which is provided with a third inner cavity and a fourth inner cavity from top to bottom, the stopper is fixed to the inner side of the lower end of the second inner cavity, the inner diameter of the third inner cavity is greater than the inner diameter of the fourth inner cavity, so that a second step is provided between the third inner cavity and the fourth inner cavity; A plugging member, the upper end of which is fixedly connected to the lower end of the second pipe member, the plugging member is provided with a guide groove running through it, and the lower end of the plugging member can abut against the second step to block the guide groove; or the lower end of the plugging member is separated from the second step so that the internal space of the inner tube is connected to the oil tank through the guide groove.

[0009] According to some embodiments of the present invention, the lower end of the blocking member is tapered, and the second step is a conical surface that can match the lower end of the blocking member.

[0010] According to some embodiments of the present invention, the fuel tank is equipped with a liquid level sensor, the vehicle frame is provided with an alarm, and the liquid level sensor and the alarm are electrically connected to control the start and stop of the alarm.

[0011] According to some embodiments of the present invention, when the liquid level of the oil tank is lower than or equal to liquid level S1, the lower end of the blocking member abuts against the second step, and the liquid level sensor is disposed at position S2, which is below S1.

[0012] According to some embodiments of the present invention, the oil separator comprises: A housing is provided with a rotating chamber, a side wall of the housing is provided with a plurality of oil injection holes in parallel, and the oil injection holes are connected to the oil injection pipe; A shaft core is inserted into the rotating cavity, the shaft core and the rotating cavity are rotatably connected, a first oil passage is provided through the shaft core along the axial direction of the shaft core, and a plurality of second oil passages are provided on the shaft core along the radial direction of the shaft core, one end of the second oil passage passes through the side wall of the shaft core, and the other end is connected to the first oil passage, and the plurality of second oil passages are staggered; Wherein, one end of the first oil circuit is blocked, and the other end is connected to the third output port; The number of the second oil passages and the oil injection holes is the same, and the shaft core can pivot so that the second oil passages and the oil injection holes can correspond to each other one by one and be connected.

[0013] According to some embodiments of the present invention, a stepper motor is fixedly connected to one end of the shell, and a third oil pipeline is inserted into the other end, the drive shaft of the stepper motor extends into the rotating chamber and is fixedly connected to the end of the shaft core, a coupling is built into the rotating chamber, the coupling is connected to the drive shaft of the stepper motor, and the third oil pipeline is connected to the shuttle valve.

[0014] According to some embodiments of the present invention, the oil filling port connected to the second oil delivery pipeline is provided with a one-way valve.

[0015] The adding method according to the second aspect of the present invention comprises the following steps: Step 1: Move the frame to the vicinity of the equipment that needs lubrication, connect the oil filling pipe to the oil filling port of the equipment, and proceed to step 2; Step 2: Connect the electromagnetic reversing valve to the first output port or the second output port according to the oil pressure and flow rate required by the corresponding device, and proceed to step 2.1 or step 2.2; Step 2.1: If the oil pressure or flow rate required by the device is less than or equal to the rated output oil pressure or rated output flow rate of the dry oil pump, the electromagnetic reversing valve is switched to the second output port to connect the dry oil pump with the second oil pipeline, and then step 3 is performed; Step 2.2: If the oil pressure or flow rate required by the device is greater than the rated output oil pressure or rated output flow of the dry oil pump, the electromagnetic reversing valve is switched to the first output port to connect the dry oil pump and the first oil pipeline, and step 2.2.1 is performed; Step 2.2.1: Adjust the boost multiple of the boost valve according to the oil pressure required by the device, adjust the rated flow rate of the speed regulating valve according to the flow rate required by the device, and proceed to step 3; Step 3: Open the shuttle valve to allow the dry oil in the oil tank to pass through the shuttle valve into the oil separator, and then be injected into the instrument from the oil separator.

[0016] The adding method according to the embodiment of the present invention has at least the following beneficial effects: the oil supply pressure and oil supply speed can be adjusted according to the requirements of different devices, and the operating threshold of the entire set of dry oil adding equipment can be greatly improved, thereby improving adaptability.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 A schematic diagram of a dry oil adding device according to an embodiment of the present invention; Figure 2 A schematic diagram of a dry oil output circuit of a dry oil adding device according to an embodiment of the present invention; Figure 3 A schematic diagram of a dry oil pump of a dry oil adding device according to an embodiment of the present invention; Figure 4 This is a schematic diagram of an oil separator of a dry oil adding device according to an embodiment of the present invention;.

[0019] 100, frame; 110, universal wheel; 120, fuel tank; 121, liquid level sensor; 130, tube reel wheel; 200, dry oil pump; 210, outer tube; 211, first inner cavity; 212, second inner cavity; 213, first step; 220, inner tube; 221, first pipe section; 222, second pipe section; 223, spring; 230, stopper; 231, third inner cavity; 232, fourth inner cavity; 233, second step; 240, blocking member; 241, guide groove; 300, electromagnetic reversing valve; 310, injection port; 320, first output port; 321, first oil pipeline; 330, second output port; 331, second oil pipeline; 400, proportional relief valve; 410, oil inlet; 420, oil outlet; 430, control oil port; 500, shuttle valve; 510, oil filling port; 520, third output port; 521, third oil pipeline; 600, speed regulating valve; 700, boost valve; 800, oil distributor; 810, housing; 811, rotating chamber; 812, oil filling hole; 820, shaft core; 821, first oil circuit; 822, second oil circuit; 830, stepping motor; 831, coupling; 900, oil filling pipe; DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0021] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0023] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0024] Reference Figure 1 and Figure 2The dry oil adding device of the embodiment of the present invention comprises a frame 100, a dry oil pump 200, an electromagnetic reversing valve 300, a proportional relief valve 400, a shuttle valve 500, a speed regulating valve 600, a boost valve 700 and an oil distributor 800. A universal wheel 110 is arranged at the bottom of the frame 100, and an oil tank 120 is fixedly connected to the bottom of the frame 100; the dry oil pump 200 is installed on the top of the frame 100, and the oil inlet end of the dry oil pump 200 is connected to the oil tank 120; the electromagnetic reversing valve 300 is provided with an injection port 310, a first output port 320 and a second output port 330; the proportional relief valve 400 is provided with an oil inlet 410, an oil outlet 420 and a control oil port 430, and the oil inlet 410 and the dry oil pump 200 are connected to the oil tank 120. The oil outlet end is connected, the oil outlet 420 is connected to the injection port 310, and the control oil port 430 is connected to the oil tank 120; the shuttle valve 500 is provided with two oil injection ports 510 and a third output port 520, and the first oil pipeline 321 and the second oil pipeline 331 are respectively provided between the two oil injection ports 510 and the first output port 320, and the second output port 330; the speed regulating valve 600 is arranged on the first oil pipeline 321; the boost valve 700 is arranged between the speed regulating valve 600 and the first output port 320; the oil separator 800 is connected to the third output port 520, and the oil separator 800 is connected to the oil injection pipe 900, and the oil separator 800 directly transports the dry oil to the instrument through the oil injection pipe 900.

[0025] Among them, the frame 100 is used to transport the entire dry oil adding equipment to the vicinity of different equipment to be refueled, the dry oil pump 200 is directly immersed in the dry oil in the oil tank 120 and is used to extract the dry oil, the shuttle valve 500 is used to receive the dry oil from the first oil pipeline 321 or the second oil pipeline 331, and transport the dry oil to the oil separator 800, and finally the dry oil is respectively input into different equipment by multiple oil filling pipes 900 on the oil separator 800.

[0026] Specifically, the adding method of the dry oil adding device of the embodiment of the present invention comprises the following steps: Step 1: Move the frame 100 to the vicinity of the equipment that needs lubrication, and connect the oil filling pipe 900 to the oil filling port of the equipment, and proceed to step 2; Step 2: Connect the electromagnetic reversing valve 300 to the first output port 320 or the second output port 330 according to the oil pressure and flow rate required by the corresponding equipment, and perform step 2.1 or step 2.2; Step 2.1: If the oil pressure or flow rate required by the device is less than or equal to the rated output oil pressure or rated output flow rate of the dry oil pump 200, the electromagnetic reversing valve 300 is switched to the second output port 330 to connect the dry oil pump 200 with the second oil delivery pipeline 331, and step 3 is performed; Step 2.2: If the oil pressure or flow rate required by the device is greater than the rated output oil pressure or rated output flow of the dry oil pump 200, the electromagnetic reversing valve 300 is switched to the first output port 320 to connect the dry oil pump 200 and the first oil pipeline 321, and step 2.2.1 is performed; Step 2.2.1: Adjust the boost multiple of the boost valve 700 according to the oil pressure required by the device, adjust the rated flow rate of the speed regulating valve 600 according to the flow rate required by the device, and proceed to step 3; Step 3: Open the shuttle valve 500 to allow the dry oil in the oil tank 120 to enter the oil separator 800 through the shuttle valve 500, and then be injected into the device through the oil separator 800.

[0027] In the above step 2.2, it belongs to the "low pressure" control process of the dry oil adding device. Specifically, the electromagnetic reversing valve 300 switches to the 2DT passage, so that the second oil pipeline 331 is connected, the first oil pipeline 321 is closed, and the dry oil pump 200 extracts dry oil from the oil tank 120. The dry oil directly enters the shuttle valve 500 through the second oil pipeline and finally flows out from the oil distributor 800. Before passing through the electromagnetic reversing valve 300, the dry oil will first pass through the proportional relief valve 400 and adjust the working pressure through the proportional relief valve 400. Specifically, the working pressure adjusted by the proportional relief valve 400 is less than or equal to the rated working pressure of the dry oil pump 200; In the above steps 2.2 and 2.2.1, it belongs to the "high pressure" control process of the dry oil adding equipment. Specifically, the electromagnetic reversing valve 300 switches to the 1DT passage, so that the first oil pipeline 321 is connected, and the second oil pipeline 331 is closed. The dry oil pump 200 draws dry oil from the oil tank 120, and the dry oil directly enters the shuttle valve 500 through the first oil pipeline, and finally flows out from the oil separator 800. When the dry oil passes through the proportional relief valve 400, the proportional relief valve 400 will be in a fully open state, so that the dry oil enters the electromagnetic reversing valve 300 at the rated pressure of the dry oil pump 200, and enters the boosting valve 700 to be boosted by multiples, and then the oil supply flow rate is adjusted by the speed regulating valve 600. At this time, the flow rate can and can only be changed in a manner lower than the rated flow rate of the dry oil pump 200, that is, a high-pressure and low-speed oil supply speed can be achieved.

[0028] It should be emphasized that the boost valve 700 generally includes a boost chamber, a low-pressure chamber, a piston, a seal, and an inlet and outlet. The piston separates the boost chamber from the low-pressure chamber, and the seal on the piston ensures that the liquids in the two chambers do not leak to each other. When the low-pressure liquid enters from the low-pressure chamber, it pushes the piston to move toward the boost chamber. The liquid in the boost chamber is pressurized due to the squeezing effect of the piston.

[0029] The speed control valve 600 is a combination valve composed of a differential pressure reducing valve and a throttle valve connected in series. Its working principle is to ensure a constant pressure difference before and after the throttle valve through automatic adjustment of the differential pressure reducing valve, because the flow of the throttle valve mainly depends on the throttle port area and the pressure difference before and after. When the throttle port area remains unchanged, the pressure difference is constant, so the flow through the speed control valve 600 can remain stable and is not affected by factors such as load changes.

[0030] In summary, the dry oil adding equipment of the embodiment of the present invention can adjust the oil supply pressure and oil supply speed according to the requirements of different equipment, and can greatly improve the operating condition threshold of the entire set of dry oil adding equipment, thereby improving adaptability.

[0031] According to some embodiments of the present invention, the oil filling port 510 connected to the second oil delivery pipeline 331 is provided with a one-way valve.

[0032] As can be seen from the above, the dry oil enters different devices through the oil separator 800, and the purpose of the oil separator 800 is to switch the oil supply to different devices. Figure 4 The oil distributor 800 includes a housing 810 and a shaft core 820. The housing 810 is provided with a rotating chamber 811. The side wall of the housing 810 is provided with a plurality of oil injection holes 812 in parallel. The oil injection holes 812 are connected to the oil injection pipe 900. The shaft core 820 is inserted into the rotating chamber 811. The shaft core 820 and the rotating chamber 811 are rotatably connected. Along the axial direction of the shaft core 820, the shaft core 820 is penetrated by a first oil passage 821. Along the radial direction of the shaft core 820, the shaft core 82 A plurality of second oil passages 822 are provided, one end of the second oil passage 822 passes through the side wall of the shaft core 820, and the other end is connected to the first oil passage 821, and the plurality of second oil passages 822 are staggered; one end of the first oil passage 821 is blocked, and the other end is connected to the third output port 520; the number of the second oil passages 822 and the oil injection holes 812 is the same, and the shaft core 820 can pivot so that the second oil passages 822 and the oil injection holes 812 can correspond to each other and be connected.

[0033] In actual use, the oil filling pipes 900 connected to different oil filling holes 812 are connected to different instruments. After lubrication of one of the instruments is completed, the shaft core 820 can be directly rotated to connect the different second oil circuits 822 with the corresponding oil filling holes 812, so that the dry oil in the first oil circuit 821 can enter different instruments through the replaced oil filling pipes 900 and lubricate the instruments. In order to ensure the normal rotation of the shaft core 820 in the shell 810, preferably, one end of the shell 810 is fixedly connected to the stepper motor 830, and the other end is inserted with the third oil pipeline 521, the driving shaft of the stepper motor 830 extends into the rotating chamber 811 and is fixedly connected to the end of the shaft core 820, the rotating chamber 811 is built with a coupling 831, the coupling 831 is connected to the driving shaft of the stepper motor 830, and the third oil pipeline 521 is connected to the shuttle valve 500. The driving shaft of the stepper motor 830 is stabilized by the coupling 831 , and the stepper motor 830 can rotate its axis at a fixed angle, so that the oil filling hole 812 and the second oil passage 822 can accurately achieve position correspondence.

[0034] In addition, in order to conveniently store a plurality of oil filling pipes 900 , pipe reel wheels 130 are provided on both sides of the vehicle frame 100 , and the oil filling pipes 900 are wound around the pipe reel wheels 130 .

[0035] According to some embodiments of the present invention, referring to Figure 3The dry oil pump 200 includes an outer tube 210, an inner tube 220, a stopper 230 and a blocking member 240. The outer tube 210 is provided with a first inner cavity 211 and a second inner cavity 212 from top to bottom. The inner diameter of the first inner cavity 211 is smaller than the inner diameter of the second inner cavity 212, so that a first step 213 is provided between the first inner cavity 211 and the second inner cavity 212; the inner tube 220 is provided through from top to bottom, and the inner tube 220 is built into the outer tube 210. The inner tube 220 includes a first pipe section 221 and a second pipe section 222 provided from top to bottom. The outer diameter of the first pipe section 221 is equal to the inner diameter of the first inner cavity 211, the outer diameter of the second pipe section 222 is equal to the inner diameter of the second inner cavity 212, and the second pipe section 222 is slidably matched with the second inner cavity 212. The length of the second pipe section 222 is smaller than the length of the second inner diameter. The end of the second pipe section 222 A spring 223 is provided between the first pipe section 221 and the first step 213, and the spring 223 is sleeved outside the first pipe section 221; the limiting member 230 is provided with a third inner cavity 231 and a fourth inner cavity 232 from top to bottom, and the limiting member 230 is fixed on the inner side of the lower end of the second inner cavity 212, and the inner diameter of the third inner cavity 231 is greater than the inner diameter of the fourth inner cavity 232, so that a second step 233 is provided between the third inner cavity 231 and the fourth inner cavity 232; the blocking member 240, the upper end of which is fixedly connected to the lower end of the second pipe member, and the blocking member 240 is penetrated by a guide groove 241, and the lower end of the blocking member 240 can abut against the second step 233 to block the guide groove 241; or the lower end of the blocking member 240 is separated from the second step 233, so that the internal space of the inner tube 220 is connected to the oil tank 120 through the guide groove 241.

[0036] In actual use, this part of the structure of the dry oil pump 200 is used to be immersed in the oil tank 120, and cooperates with the pump in the dry oil pump 200 to extract the dry oil, wherein, when the inner tube 220 moves to the lower end under the action of the spring 223, and makes the sealing member 240 abut against the second step 233, a metal seal is formed between the sealing member 240 and the limit member 230. At this time, there is still a small amount of dry oil in the entire oil tank 120, which can ensure that the dry oil pump 200 will not be dry-drawn, realize the long-term stable operation of the dry oil pump 200, and improve the service life of the entire dry oil adding equipment; on the contrary, if the oil tank 120 is full of dry oil, the oil pressure will lift the sealing member 240, so that there is a gap between the sealing member 240 and the second step 233. After the dry oil enters from the gap, it will be drawn into the inner tube 220 by the dry oil pump 200 through the guide groove 241, and finally flow out through the upper end of the outer tube 210.

[0037] As a preferred specific embodiment, the lower end of the blocking member 240 is tapered, and the second step 233 is a tapered surface, and can match the lower end of the blocking member 240. The tapered lower end surface can cooperate with the second step 233 to achieve metal sealing, and at the same time, the tapered shape can better guide the blocking member 240, so that the blocking member 240 can just cooperate with the second step 233 to achieve abutment.

[0038] At the same time, in order to further reduce the risk of dry pumping, the fuel tank 120 is equipped with a liquid level sensor 121, and the frame 100 is provided with an alarm. The liquid level sensor 121 and the alarm are electrically connected to control the start and stop of the alarm. Preferably, when the liquid level in the fuel tank 120 is lower than or equal to the liquid level S1, the lower end of the blocking member 240 abuts against the second step 233, and the position of the liquid level sensor 121 is set to S2, which is below S1.

[0039] In addition, a liquid level sensor 121 can be provided at the upper end of the oil tank 120 to prevent the oil from overflowing when refueling the oil tank 120. The liquid level sensor 121 is also electrically connected to the alarm to serve as a warning reminder.

[0040] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A dry oil adding device, characterized in that: include: A vehicle frame (100) is provided with a universal wheel (110) at the bottom, and an oil tank (120) is fixedly connected to the bottom of the vehicle frame (100); A dry oil pump (200) is installed on the top of the vehicle frame (100), and the oil inlet end of the dry oil pump (200) is connected to the oil tank (120); An electromagnetic reversing valve (300) is provided with an injection port (310), a first output port (320) and a second output port (330); A proportional relief valve (400) is provided with an oil inlet (410), an oil outlet (420) and a control oil port (430), wherein the oil inlet (410) is connected to the oil outlet end of the dry oil pump (200), the oil outlet (420) is connected to the injection port (310), and the control oil port (430) is connected to the oil tank (120); The shuttle valve (500) is provided with two oil injection ports (510) and a third output port (520); a first oil delivery pipeline (321) and a second oil delivery pipeline (331) are respectively provided between the two oil injection ports (510) and the first output port (320), and the second output port (330); A speed regulating valve (600) is arranged on the first oil pipeline (321); A boost valve (700) disposed between the speed regulating valve (600) and the first output port (320); The oil separator (800) is connected to the third output port (520), and the oil separator (800) is connected to an oil injection pipe (900). The oil separator (800) directly delivers dry oil to the device through the oil injection pipe (900).

2. The dry oil adding device according to claim 1, characterized in that: Tube reel wheels (130) are arranged on both sides of the vehicle frame (100), and the oil injection pipe (900) is wound around the tube reel wheels (130).

3. The dry oil adding device according to claim 1, characterized in that: The dry oil pump (200) comprises: The outer tube (210) is provided with a first inner cavity (211) and a second inner cavity (212) from top to bottom, wherein the inner diameter of the first inner cavity (211) is smaller than the inner diameter of the second inner cavity (212), so that a first step (213) is provided between the first inner cavity (211) and the second inner cavity (212); An inner tube (220) is arranged to penetrate from top to bottom, the inner tube (220) is built into the outer tube (210), the inner tube (220) comprises a first tube section (221) and a second tube section (222) arranged from top to bottom, the outer diameter of the first tube section (221) is equal to the inner diameter of the first inner cavity (211), the outer diameter of the second tube section (222) is equal to the inner diameter of the second inner cavity (212), and the second tube section (222) is slidably matched with the second inner cavity (212), the length of the second tube section (222) is less than the length of the second inner diameter, a spring (223) is arranged between the end of the second tube section (222) and the first step (213), and the spring (223) is sleeved outside the first tube section (221); A stopper (230) is provided with a third inner cavity (231) and a fourth inner cavity (232) from top to bottom, the stopper (230) is fixed on the inner side of the lower end of the second inner cavity (212), the inner diameter of the third inner cavity (231) is greater than the inner diameter of the fourth inner cavity (232), so that a second step (233) is provided between the third inner cavity (231) and the fourth inner cavity (232); A plugging member (240) has an upper end fixedly connected to a lower end of the second pipe member, and a guide groove (241) is provided through the plugging member (240). The lower end of the plugging member (240) can abut against the second step (233) to block the guide groove (241); or the lower end of the plugging member (240) is separated from the second step (233) so that the internal space of the inner tube (220) is connected to the oil tank (120) through the guide groove (241).

4. The dry oil adding device according to claim 3, characterized in that: The lower end of the blocking member (240) is tapered, and the second step (233) is a tapered surface and can match the lower end of the blocking member (240).

5. The dry oil adding device according to claim 3, characterized in that: The oil tank (120) is provided with a liquid level sensor (121), the vehicle frame (100) is provided with an alarm, and the liquid level sensor (121) is electrically connected to the alarm to control the start and stop of the alarm.

6. The dry oil adding device according to claim 5, characterized in that: When the liquid level of the oil tank (120) is lower than or equal to the liquid level S1, the lower end of the blocking member (240) abuts against the second step (233), and the position of the liquid level sensor (121) is S2, which is located below S1.

7. The dry oil adding device according to claim 1, characterized in that: The oil separator (800) comprises: A housing (810) is provided with a rotating chamber (811), a side wall of the housing (810) is provided with a plurality of oil injection holes (812) arranged side by side, and the oil injection holes (812) are connected to the oil injection pipe (900); A shaft core (820) is inserted into the rotating chamber (811), the shaft core (820) and the rotating chamber (811) are rotatably connected, along the axial direction of the shaft core (820), the shaft core (820) is provided with a first oil passage (821), along the radial direction of the shaft core (820), the shaft core (820) is provided with a plurality of second oil passages (822), one end of the second oil passage (822) passes through the side wall of the shaft core (820), and the other end is connected to the first oil passage (821), and the plurality of second oil passages (822) are staggered; Wherein, one end of the first oil passage (821) is blocked, and the other end is connected to the third output port (520); The number of the second oil passages (822) and the oil injection holes (812) is the same, and the shaft core (820) can pivot so that the second oil passages (822) and the oil injection holes (812) can correspond to each other one by one and be connected.

8. The dry oil adding device according to claim 1, characterized in that: A stepper motor (830) is fixedly connected to one end of the housing (810), and a third oil pipeline (521) is inserted into the other end. The drive shaft of the stepper motor (830) extends into the rotating chamber (811) and is fixedly connected to the end of the shaft core (820). A coupling (831) is built into the rotating chamber (811), and the coupling (831) is connected to the drive shaft of the stepper motor (830). The third oil pipeline (521) is connected to the shuttle valve (500).

9. The dry oil adding device according to claim 1, characterized in that: The oil filling port (510) connected to the second oil delivery pipeline (331) is provided with a one-way valve.

10. The adding method is characterized in that: The dry oil adding device according to any one of claims 1 to 9 comprises the following steps: Step 1: Move the frame (100) to the vicinity of the equipment that needs lubrication, and connect the oil filling pipe (900) to the oil filling port of the equipment, and proceed to step 2; Step 2: Connect the electromagnetic reversing valve (300) to the first output port (320) or the second output port (330) according to the oil pressure and flow rate required by the corresponding device, and proceed to step 2.1 or step 2.2; Step 2.1: If the oil pressure or flow rate required by the device is less than or equal to the rated output oil pressure or rated output flow rate of the dry oil pump (200), the electromagnetic reversing valve (300) is switched to the second output port (330) to connect the dry oil pump (200) and the second oil delivery pipeline (331), and step 3 is performed; Step 2.2: If the oil pressure or flow rate required by the device is greater than the rated output oil pressure or rated output flow of the dry oil pump (200), the electromagnetic reversing valve (300) is switched to the first output port (320) to connect the dry oil pump (200) and the first oil delivery pipeline (321), and step 2.2.1 is performed; Step 2.2.1: Adjust the boost multiple of the boost valve (700) according to the oil pressure required by the device, adjust the rated flow rate of the speed regulating valve (600) according to the flow rate required by the device, and proceed to step 3; Step 3: Open the shuttle valve (500) to allow the dry oil in the oil tank (120) to pass through the shuttle valve (500) and enter the oil separator (800), and then be injected into the device through the oil separator (800).

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