A multi-channel grease filling intelligent distribution valve

Abstract

The present invention discloses a multi-way intelligent distribution valve for lubricating grease filling, comprising a main valve body, on which a filling device and a position selection device are arranged; the filling device comprises a plurality of oil receiving and filling rods penetrating the main valve body, the plurality of oil receiving and filling rods are connected with a sealing ball for controlling the opening and closing of grease filling, one side of the sealing ball is connected with a reset oil inlet mechanism for resetting the sealing ball and feeding oil, and one side of the main valve body is provided with an oil delivery mechanism for delivering oil; the position selection device comprises a position selection fork, the position selection fork abuts against at least two cams, the cam drives the oil receiving and filling rod to move to control the opening and closing of grease filling, and the position selection fork is connected with a sensor driving mechanism for driving the position selection fork to move to another oil receiving and filling rod. The present invention has the following beneficial effects: the multi-way intelligent distribution valve for lubricating grease filling can realize automatic filling of different oil amounts at each point, so as to replace manual filling and extend the service life of the machinery.

Description

Technical Field

[0001] The invention relates to the technical field of grease filling for mechanical equipment bearings and shaft sleeves, in particular to a multi-channel lubricating grease filling intelligent distribution valve. Background Art

[0002] After mechanical equipment has been running for a period of time, the pins and bearings of each moving connection part must be supplemented with grease. The amount of grease added must be accurate. Adding more or less grease will have a certain impact on the normal operation of the pins and bearings. In addition, mechanical equipment generally has a large number of operating joints, and their sizes are not uniform, so there are certain requirements for the amount of grease added. Therefore, when mechanical equipment is repaired, it is often done by manually operating a grease pump, which is a large workload and may result in incorrect filling or omissions, posing a hidden danger to the operation of the machinery.

[0003] At present, lubricating greases are divided into different grades with different viscosities, especially high-grade and high-viscosity greases. The solenoid valves that control their on-and-off flow in pipelines are often large in size and high in power consumption, which brings difficulties to multi-channel integrated control. This is also the reason why multi-channel automated grease filling systems rarely appear on the market. Summary of the invention

[0004] The purpose of the present invention is to provide a multi-way lubricating grease filling intelligent distribution valve. The multi-way lubricating grease filling intelligent distribution valve can realize automatic filling of different oil amounts at various points to replace manual filling and extend the service life of the machine.

[0005] The object of the present invention is achieved through the following technical solutions:

[0006] A multi-way lubricating grease filling intelligent distribution valve comprises a main valve body, on which is provided a filling device for filling grease and a positioning device for selecting the position of a pin shaft or a bearing to be filled with grease; the filling device comprises a plurality of oil receiving and filling rods penetrating the main valve body, the plurality of oil receiving and filling rods being connected to a sealing ball for controlling the opening and closing of grease filling, one side of the sealing ball being connected to a resetting oil inlet mechanism for resetting the sealing ball and feeding oil, and one side of the main valve body being provided with an oil delivery mechanism for delivering oil; the positioning device comprises a positioning fork, the positioning fork being abutted against at least two cams, the cams driving the oil receiving and filling rods to move to control the opening and closing of grease filling, and the positioning fork being connected to a sensor driving mechanism for driving the positioning fork to move to another oil receiving and filling rod.

[0007] By adopting the above technical solution, the opening and closing of grease filling is controlled by the movement of the oil receiving and filling rod, the cam is driven to move by the position selection fork, and the movement of the oil receiving and filling rod is driven by the rotation of the cam to control the opening and closing of grease filling. In addition, the sensor setting drives the sensor driving mechanism to work, so that the position selection fork moves automatically, thereby realizing full-automatic filling, replacing manual filling.

[0008] The present invention is further configured as follows: the reset oil inlet mechanism includes a sliding hole one and a sliding hole two arranged in the main valve body, the sealing ball is arranged at the connection between the sliding hole one and the sliding hole two, and the oil receiving and filling rod is provided with oil drain grooves on both sides close to the sealing ball. When the sealing ball moves, the gap between the sliding hole one and the sliding hole two is exposed, and the grease enters the sliding hole one through the sliding hole two, an oil inlet spring is arranged under the sealing ball, and an oil inlet seat externally connected to the oil pipeline is arranged at the end of the oil inlet spring.

[0009] By adopting the above scheme, the movement of the oil receiving and filling rod will drive the movement of the sealing ball, thereby exposing the gap between sliding hole one and sliding hole two, so that the grease in sliding hole two and the grease driven by the power outside the oil inlet seat move to sliding hole one, and are filled through the oil drain groove.

[0010] The present invention is further configured as follows: the oil delivery mechanism includes an oil delivery branch pipe, the oil delivery branch pipe is connected to the main valve body, an oil delivery hole 1 and an oil delivery hole 2 are arranged in the oil delivery branch pipe, and an oil delivery ball is arranged between the oil delivery hole 1 and the oil delivery hole 2.

[0011] By adopting the above technical solution, when the grease passes through the sliding hole 1 and the oil drain groove into between the oil delivery hole 1 and the oil delivery hole 2, the oil delivery ball is pushed open and the grease is output.

[0012] The present invention is further configured as follows: the oil delivery ball is in contact with an oil delivery spring, the oil delivery spring is fixedly connected to an oil delivery seat, and an oil outlet is provided on one side of the oil delivery seat.

[0013] After adopting the above technical solution, the grease entering the second oil delivery hole is output through the oil outlet to the connecting piece where grease needs to be added for grease addition, and the output oil amount is controlled by the oil amount sensor.

[0014] The present invention is further configured as follows: a driving shaft and a driven shaft in the shape of a hexagonal prism are arranged above the oil receiving and filling rod, the cam sliding sleeve is arranged on the driving shaft and the driven shaft, the driving shaft and the driven shaft are respectively connected with a transmission gear A and a transmission gear B, the transmission gear A is meshed with the transmission gear B, the transmission gear A is connected to a driving motor, and a high point sensor and a low point sensor are arranged on one side of the driving motor.

[0015] After adopting the above technical solution, the driving motor drives the driving shaft to work, and then the driving gear A and the driving gear B drive the driven shaft to work, and finally the cam is driven to rotate, and the rotation of the cam drives the oil filling rod to move, so as to add grease. The above high point sensor and low point sensor can control the position of the cam and the rotation of the cam.

[0016] The present invention is further configured as follows: the sensor drive mechanism includes positioning grooves arranged on both sides of the positioning fork, the positioning grooves correspond to the cam settings, lead screw nuts are respectively arranged at both ends of the positioning fork, the lead screw nut is threadedly connected with a lead screw, one end of the lead screw is fixedly sleeved with a synchronous pulley and passes through the synchronous pulley to be connected to the side plate bearing, the synchronous pulleys are connected by a synchronous belt, and the other end of the lead screw is connected to a positioning motor.

[0017] After adopting the above technical solution, the position selection fork is driven to move by the position selection motor, thereby driving the cam to move to the position of the oil filling rod where grease is required. After that, the active motor drives the cam to rotate, thereby automatically filling grease to the connecting part.

[0018] The present invention is further configured as follows: a starting position sensor is provided on one side of the screw rod, and the starting position sensor is used for reversing the screw rod to drive the position selection fork to reset.

[0019] In summary, the present invention has the following beneficial purposes: This multi-channel lubricating grease filling intelligent distribution valve can realize automatic filling of different oil amounts at various points to replace manual filling and extend the service life of the machinery. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an embodiment;

[0021] Figure 2 It is a schematic diagram of the structure in another direction of the embodiment;

[0022] Figure 3 An exploded view of an embodiment;

[0023] Figure 4 An exploded view of the main valve body;

[0024] Figure 5 This is the internal structure diagram of the main valve body;

[0025] Figure 6 is a schematic diagram of a valve body control unit;

[0026] Figure 7 It is a schematic diagram of the overall oil circuit structure.

[0027] Figure numerals: 1, main valve body; 2, side plate; 3, filling device; 301, oil receiving and filling rod; 3011, filling rod one; 3012, filling rod two; 302, sliding hole one; 303, sliding hole two; 304, sealing ball; 305, oil drain groove; 306, oil inlet spring; 307, oil inlet seat; 308, oil delivery branch pipe; 309, oil delivery hole one; 310, oil delivery hole two; 311, oil delivery ball; 312, oil outlet; 313, oil delivery Spring; 314, oil delivery seat; 315, sealing ring; 316, driving shaft; 317, driven shaft; 318, transmission gear A; 319, transmission gear B; 320, driving motor; 321, cam A; 322, cam B; 323, main input oil pipe; 4, positioning device; 401, positioning fork; 402, positioning groove; 403, screw nut; 404, screw; 405, synchronous pulley; 406, synchronous belt; 407, positioning motor. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0029] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0030] like Figure 1 As shown, a multi-way lubricating grease filling intelligent distribution valve includes a main valve body 1, and side plates 2 are arranged on both sides of the main valve body 1. The main valve body 1 is provided with a filling device 3 for filling grease and a position selection device 4 for selecting the position of the pin shaft or bearing to be filled with grease.

[0031] 1. Filling device 3

[0032] like Figure 2 , Figure 3 As shown, the filling device 3 includes a plurality of oil receiving filling rods 301 arranged in the middle of the main valve body 1. The plurality of oil receiving filling rods 301 are arranged in two rows on the main valve body 1, namely, a row of filling rods 1 3011 and a row of filling rods 2 3012. The filling rods 1 3011 and the filling rods 2 3012 are not in the same straight line and are arranged alternately with each other.

[0033] The oil filling rod 301 is located inside the main valve body 1. Figure 4 , Figure 5As shown, a sliding hole 1 302 is provided in the main valve body 1 for the oil receiving and filling rod 301 to slide. The sliding hole 1 302 is connected with the sliding hole 2 303. A sealing ball 304 is provided at the bottom of the oil receiving and filling rod 301. The sealing ball 304 is inserted into the connection position of the sliding hole 1 302 and the sliding hole 2 303 and blocks the sliding hole 1 302 and the sliding hole 2 303. Among them, oil drain grooves 305 are provided on both sides of the oil receiving and filling rod 301 close to the sealing ball 304. When the oil receiving and filling rod 301 moves downward as shown in the figure, the sealing ball 304 moves downward, and at the same time, the sliding hole 1 302 and the sliding hole 2 303 are connected, and are no longer blocked by the sealing ball 304. An oil inlet spring 306 is provided below the sealing ball 304. The end of the oil inlet spring 306 is fixedly connected to the oil inlet seat 307. The oil inlet seat 307 is connected to the oil pipeline and oil is introduced through a grease plunger pump. When the sealing ball 304 moves downward, the oil pipeline will be filled with oil through the sliding hole 2 303. The grease passes through the sliding hole 2 303 and enters the sliding hole 1 302 through the oil drain groove 305. Correspondingly, the main valve body 1 is provided with an oil branch pipe 308 on one side of the oil drain groove 305. The oil branch pipe 308 is provided with an oil hole 1 309 and an oil hole 2 310, and an oil ball 311 is provided between the oil hole 1 309 and the oil hole 2 310. The oil ball 311 is abutted against an oil spring 313. The oil spring 313 is fixedly connected to the oil seat 314. An oil outlet 312 is provided on one side of the oil seat 314. When the grease enters the position of the oil delivery ball 311 through the oil delivery hole 1 309 in the oil delivery branch pipe 308, pressure is applied to the oil delivery ball 311, pushing the oil delivery ball 311 to move to the right side of the figure. The movement of the oil delivery ball 311 drives the oil delivery spring 313 to compress. At the same time, the grease enters the oil delivery hole 2 310 from the oil delivery hole 1 309, and is output through the oil outlet 312 on the oil delivery seat 314 to lubricate the connecting parts such as the pin shaft and the bearing. The purpose of setting the oil delivery ball 311 and the oil delivery spring 313 in the oil delivery branch pipe 308 is mainly to play the role of a check valve. When the grease is closed, the residual grease in the external oil delivery branch pipe 308 is reduced to react on the oil receiving and filling rod 301.

[0034] Optimally, a main valve body 1 is provided with a main input oil pipe 323 on one side, and the main input oil pipe 323 refuels each oil inlet seat 307. An oil quantity sensor is provided on the main input oil pipe 323. The oil quantity sensor is used to calculate the output oil quantity or the output time, and the oil quantity or the oil delivery time can be preset. The oil quantity sensor is located at the main input oil pipe 323 because the grease is added by a single oil receiving and filling rod 301 each time. For multi-way grease filling, it is only necessary to set the data of each refueling unit, pre-store the oil quantity required to be added at the position of each oil receiving and filling rod 301, and control the opening and closing of the grease filling.

[0035] Optimally, a sealing ring 315 is provided on the outer periphery of the oil receiving and filling rod 301 , and the sealing ring 315 is used to prevent grease from escaping from the gap between the oil receiving and filling rod 301 and the main valve body 1 , thereby ensuring good sealing performance.

[0036] In the above process, the movement of the oil receiving and filling rod 301 drives the grease filling, and no electromagnetic valve is required, which reduces energy consumption and makes filling convenient. The structural setting in the oil delivery branch pipe 308 can make the grease filling more stable, facilitate the control of the grease filling amount and the stable oil delivery to ensure that there is no leakage during the filling process.

[0037] A hexagonal driving shaft 316 is arranged above the filling rod 1 3011, and a hexagonal driven shaft 317 is arranged above the filling rod 2 3012. Both ends of the driving shaft 316 and the driven shaft 317 are cylindrical ends. The driving shaft 316 and the driven shaft 317 pass through the side plate 2 on one side and are respectively connected with a transmission gear A318 and a transmission gear B319. The transmission gear A318 is meshed with the transmission gear B319, and the transmission gear A318 is connected with a driving motor 320. The driving motor 320 is a DC reduction motor. When the driving motor 320 drives the transmission gear A318 to rotate, it drives the driving shaft 316A to rotate, and drives the driven shaft 317 to rotate through the transmission gear B319. The sliding sleeve of the driving shaft 316 is provided with a cam A321, and the driven shaft 317 is sleeved with a cam B322. Cam A321 is used to drive filling rod 1 3011 to move, and cam B322 is used to drive filling rod 2 3012 to move.

[0038] In addition, a high point sensor and a low point sensor are provided on the side plate 2 . When the cam A321 and the cam B322 are moved by the position selection device 4 to the position of the filling rod 1 3011 or the filling rod 2 3012 to be filled, as the cam A321 and the cam B322 rotate, the far end of the cam A321 or the cam B322 presses the filling rod 1 3011 or the filling rod 2 3012 at this position until the high point sensor senses it, so that the grease is output to the oil outlet 312 through the oil inlet seat 307, and at the same time, the high point sensor transmits a signal to stop the active motor 320. At this time, the oil volume sensor measures the output oil volume (or the timer counts). When the preset oil volume (preset time) is reached, the active motor 320 runs, and the cam A321 or the cam B322 turns from the far end to the near end, the filling rod 1 3011 or the filling rod 2 3012 at this position is reset, and the channel is closed. When the cam A321 or the cam B322 reaches the near end, the low point sensor senses it, and the active motor 320 stops under the signal of the low point sensor.

[0039] 2. Position selection device 4

[0040] like Figure 2 , Figure 3As shown, the position selection device 4 includes a position selection fork 401. Two position selection slots 402 are provided on the position selection fork 401. The two position selection slots 402 correspond to cam A321 and cam B322 respectively. Since the middle parts of the driving shaft 316 and the driven shaft 317 are hexagonal, when the position selection fork 401 moves, the cam A321 and the cam B322 can be driven to move, and when the driving shaft 316 and the driven shaft 317 rotate, the cam A321 and the cam B322 can be driven to rotate.

[0041] Screw nuts 403 are respectively provided at both ends of the position selection fork 401. A screw 404 is threadedly connected to the middle of the screw nut 403. One end of the screw 404 is fixedly sleeved with a synchronous pulley 405 and passes through the synchronous pulley 405 to be connected to the bearing of the side plate 2. The synchronous pulleys 405 are connected by a synchronous belt 406. The other end of one of the screws 404 is connected to a position selection motor 407. Among them, the position selection motor 407 is a stepping motor.

[0042] Optimally, a start position sensor is provided on one side of the screw rod 404. The start position sensor is used for the screw rod 404 to reverse and drive the position selection fork 401 to reset.

[0043] When cam A321 or cam B322 is sensed by the low point sensor, the position selection motor 407 runs, rotates the corresponding number of circles according to the preset position information, drives the screw rod 404, and moves the cam A321 and cam B322 sleeved on the driving shaft 316 and the driven shaft 317 to slide to the preset position through the position selection fork 401, so as to open and close the filling rod 1 3011 or the filling rod 2 3012 at this position. The position selection motor 407, when powered on, reset and the cam low point sensing sensor senses, has a return to zero position action, and the position selection motor 407 reverses until the cam runs to zero position, the screw rod 404 starts to sense the position sensor, and the position selection motor 407 stops working.

[0044] 3. Valve control unit

[0045] like Figure 6As shown, in order to better understand the present application, the applicant further elaborates on the workflow of the present application through the valve body control unit. As shown in the figure, the main control system is a PLC unit or an MCU circuit. First, manually input the corresponding data, including but not limited to the oil filling time, stepping unit, preset oil volume, etc. Run the position selection device 4, so that the position selection motor 407, i.e., the stepping motor drives the position selection fork 401 to move step by step, and drives the cam A321 to the top of the preset filling rod 3011. The position selection motor 407 stops, and the DC reduction motor drives the cam A321 and the wheel B to rotate. At the same time, the cam high point sensor senses, so that the filling rod 3011 is pressed down to drive the sealing ball 304 to move, so that the input oil volume is output through the oil outlet 312, and the connector that needs to be refueled is filled and lubricated. After filling to the preset oil volume or time, the DC reduction motor drives the cam A321 or cam B322 to continue to rotate, and the cam low point sensor senses at the same time. The stepper motor works, driving the position selection fork 401 to move, so that the cam A321 and the cam B322 move to the position of the next filling rod 2 3012. In this process, if the ambient temperature is too low, the valve body heating drive circuit makes the valve body heating rod in working state. At the same time, the grease pump start signal interface connects the grease plunger pump, and the grease plunger pump is started at the same time when the high point sensor senses it. Repeat the above steps, so that the filling rod 2 3012 is pressed down, and the oil delivery branch pipe 308 corresponding to the filling rod 2 3012 outputs grease. Each time the above steps are repeated, the filling rod 1 3011 and the filling rod 2 3012 work once respectively, and the oil delivery is alternately operated.

[0046] 4. Overall oil circuit structure

[0047] like Figure 7 The grease output process is further described as shown. The grease plunger pump in the present application inputs grease into the distribution valve through the oil pipe when the signal is transmitted, and then the position selection device 4 and the filling device 3 are used to fill oil to several filling points, namely the oil receiving and filling rod 301, and the oil delivery branch pipe 308 is used to lubricate the connecting parts that need to be filled with oil.

Claims

1. A multi-channel grease filling intelligent distribution valve, comprising a main valve body (1), characterized in that: The main valve body (1) is provided with a filling device (3) for filling grease and a positioning device (4) for selecting the position of the pin shaft or bearing to be filled with grease; the filling device (3) comprises a plurality of oil receiving and filling rods (301) penetrating the main valve body (1); the plurality of oil receiving and filling rods (301) are connected to a sealing ball (304) for controlling the opening and closing of grease filling; one side of the sealing ball (304) is connected to a resetting and oil inlet mechanism for resetting the sealing ball (304) and feeding oil; one side of the main valve body (1) is provided with an oil delivery mechanism for delivering oil. The positioning device (4) comprises a positioning fork (401), wherein the positioning fork (401) is in contact with at least two cams, wherein the cams drive the oil receiving and filling rod (301) to move to control the opening and closing of grease filling, and the positioning fork (401) is connected to a sensor driving mechanism that drives the positioning fork (401) to move to another oil receiving and filling rod (301); the sensor driving mechanism comprises positioning grooves (402) arranged on both sides of the positioning fork (401), wherein the positioning grooves (402) are arranged corresponding to the cams, and the two ends of the positioning fork (401) are respectively arranged A screw nut (403) is provided, the screw nut (403) is threadedly connected to a screw (404), one end of the screw (404) is fixedly sleeved with a synchronous pulley (405) and passes through the synchronous pulley (405) to be connected to a bearing of the side plate (2), the synchronous pulleys (405) are connected via a synchronous belt (406), and the other end of the screw (404) is connected to a position selection motor (407); a start position sensor is provided on one side of the screw (404), and the start position sensor is used for reversing the screw (404) to drive the position selection fork (401) to reset; the sensor A driving shaft (316) and a driven shaft (317) in the shape of a hexagonal prism are arranged above the oil filling rod (301); the cam sliding sleeve is arranged on the driving shaft (316) and the driven shaft (317); the driving shaft (316) and the driven shaft (317) are respectively connected to a transmission gear A (318) and a transmission gear B (319); the transmission gear A (318) and the transmission gear B (319) are meshed; the transmission gear A (318) is connected to a driving motor (320); a high point sensor and a low point sensor are arranged on one side of the driving motor (320).

2. The multi-channel grease filling intelligent distribution valve according to claim 1 is characterized in that: The reset oil inlet mechanism comprises a sliding hole 1 (302) and a sliding hole 2 (303) arranged in the main valve body (1); the sealing ball (304) is arranged at the connection between the sliding hole 1 (302) and the sliding hole 2 (303); the oil receiving and filling rod (301) is provided with oil drain grooves (305) on both sides close to the sealing ball (304); when the sealing ball (304) moves, the gap between the sliding hole 1 (302) and the sliding hole 2 (303) is exposed, and the grease enters the sliding hole 1 (302) through the sliding hole 2 (303); an oil inlet spring (306) is arranged below the sealing ball (304); and an oil inlet seat (307) connected to an external oil pipeline is arranged at the end of the oil inlet spring (306).

3. The multi-channel grease filling intelligent distribution valve according to claim 2 is characterized in that: The oil delivery mechanism comprises an oil delivery branch pipe (308), the oil delivery branch pipe (308) is connected to the main valve body (1), an oil delivery hole 1 (309) and an oil delivery hole 2 (310) are arranged in the oil delivery branch pipe (308), and an oil delivery ball (311) is arranged between the oil delivery hole 1 (309) and the oil delivery hole 2 (310).

4. The multi-channel grease filling intelligent distribution valve according to claim 3 is characterized in that: The oil delivery sphere (311) is in contact with an oil delivery spring (313), the oil delivery spring (313) is fixedly connected to an oil delivery seat (314), and an oil outlet (312) is provided on one side of the oil delivery seat (314).

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