Energy-saving variable displacement piston pump and servo motor integrated driving device

Abstract

The utility model relates to the technical field of variable displacement piston pumps, in particular to an energy-saving variable displacement piston pump and servo motor integrated driving device, which is characterized in that a driving mechanism is opened to enable a pumping mechanism to operate, then the pumping amount of the pumping mechanism is adjusted through an adjusting mechanism, and liquid is continuously conveyed through the pumping mechanism. The practicability of the equipment is improved; comprising a driving mechanism; the device further comprises a pumping mechanism and an adjusting mechanism, and the driving mechanism and the adjusting mechanism are both installed on the pumping mechanism. The driving mechanism provides power for the pumping mechanism, the adjusting mechanism adjusts the pumping amount, and the pumping mechanism conveys liquid.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of variable plunger pump, in particular to a kind of energy-saving variable plunger pump and servo motor integrated drive device. BACKGROUND

[0002] Variable plunger pump is a kind of hydraulic pump with variable displacement, widely used in metallurgy, mining, engineering machinery, ship, civil aviation ground equipment and other hydraulic transmission fields, existing variable plunger pump such as axial variable plunger pump and the proportional power controller of a kind of swash plate type axial variable plunger pump disclosed in utility model patent with application No. 200620079670.8 and application No. 202322075935.3, can realize the delivery of liquid.

[0003] But in the use process, it is found that the existing variable plunger pump structure is relatively simple, and there is error when processing, so that self-priming is poor when just starting, the delivery efficiency of liquid is low, air in pipeline needs to be discharged, and air is easy to be left in pipeline, which affects pumping effect, so that practicality is poor, thus an energy-saving variable plunger pump and servo motor integrated drive device is needed to improve the above problems. UTILITY MODEL CONTENTS

[0004] To solve the above technical problems, the utility model provides an energy-saving variable plunger pump and servo motor integrated drive device, which opens the driving mechanism, makes the pumping mechanism run, adjusts the pumping capacity of the pumping mechanism through the adjusting mechanism, continuously delivers liquid through the pumping mechanism, thereby improving the practicability of the equipment.

[0005] The energy-saving variable plunger pump and servo motor integrated drive device of the utility model, comprising driving mechanism, further comprising pumping mechanism and adjusting mechanism, driving mechanism and adjusting mechanism are installed on pumping mechanism,

[0006] The driving mechanism provides power for the pumping mechanism, the adjusting mechanism adjusts the pumping capacity, and the pumping mechanism delivers liquid.

[0007] Open the driving mechanism, make the pumping mechanism run, adjust the pumping capacity of the pumping mechanism through the adjusting mechanism, continuously deliver liquid through the pumping mechanism, thereby improving the practicability of the equipment.

[0008] Preferably, the pumping mechanism comprises a base, a shell, a liquid outlet pipe, a first one-way valve, a liquid inlet pipe, a second one-way valve, two sets of connecting valves, a pumping cylinder, two sets of plungers, a transmission frame, a support frame and a pressure regulating mechanism, the shell is installed on the top end of the base, the base is provided with a water inlet and a water outlet, one end of the liquid outlet pipe is installed on the water outlet of the base through the first one-way valve, one end of the liquid inlet pipe is installed on the water inlet of the base through the second one-way valve, the two sets of connecting valves are respectively installed on the other end of the liquid outlet pipe and the first one-way valve, the pumping cylinder is rotatably installed in the base, the inside of the pumping cylinder is provided with a plurality of cavities, the plurality of plungers are respectively slidably installed in the plurality of cavities of the pumping cylinder, one end of each of the plurality of plungers is provided with a ball head, and the plurality of ball heads are rotatably installed on the transmission frame, the transmission frame is rotatably installed in the support frame, and the pressure regulating mechanism is installed on the pumping cylinder; the connecting valve on the liquid inlet pipe is connected with the liquid inlet pipeline, the connecting valve on the liquid outlet pipe is connected with the liquid outlet pipeline, the driving mechanism is opened, the plurality of plungers and the pumping cylinder are driven to rotate through the transmission frame, and the inclination of the transmission frame is adjusted through the adjusting mechanism, then in the rotating process of the pumping cylinder, the plurality of plungers repeatedly stretch and retract in the pumping cylinder, at the same time, the pressure regulating mechanism helps the pumping cylinder and the plurality of plungers to exhaust the air in the pipeline and the cavities of the pumping cylinder, the liquid in the liquid inlet pipeline enters the cavities of the pumping cylinder through the liquid inlet pipe, and with the rotation of the pumping cylinder and the repeated stretching and retracting of the plurality of plungers, the liquid in the cavities of the pumping cylinder is discharged into the liquid outlet pipe, and then the liquid is discharged into the liquid outlet pipeline through the liquid outlet pipe, thereby improving the practicability of the equipment.

[0009] Preferably, the pressure regulating mechanism comprises a plurality of pressure regulating cylinders, a plurality of pistons, a plurality of first electric control valves, a plurality of second electric control valves and a plurality of oil liquid sensors, the plurality of pressure regulating cylinders are installed on the pumping cylinder, and the plurality of pressure regulating cylinders are respectively communicated with the plurality of cavities in the pumping cylinder, the plurality of pistons are respectively slidably installed in the plurality of pressure regulating cylinders, and the plurality of pistons are respectively connected with the plurality of plungers, the plurality of first electric control valves are respectively installed on the plurality of pistons, the plurality of second electric control valves are respectively installed on the plurality of pressure regulating cylinders, and the plurality of pressure regulating cylinders are respectively communicated with the plurality of cavities in the pumping cylinder, and the plurality of oil liquid sensors are respectively installed in the plurality of second electric control valves; in the initial stage of the operation of the equipment, when the plunger moves left to make a contraction movement, the piston moves left with the plunger, so that a negative pressure environment is formed in the inside of the pressure regulating cylinder, then when the right end of the plunger moves to the left side of the second electric control valve, the second electric control valve is opened, the air in the cavity of the pumping cylinder is sucked into the pressure regulating cylinder, then when the plunger moves right to make an extension movement, the piston moves right with the plunger, after the right end of the plunger moves to the right side of the second electric control valve, the first electric control valve is opened, the air in the pressure regulating cylinder is discharged through the first electric control valve, then the above actions are repeatedly repeated until the oil liquid sensor detects the liquid, the second electric control valve is closed, and the first electric control valve is opened, so that the plunger transports the liquid, thereby improving the practicability of the equipment.

[0010] Preferably, the driving mechanism comprises a transmission, a driving motor and a universal coupling, the transmission is installed on the base, the driving motor is installed on the transmission, and the output shaft of the driving motor is connected with the input end of the transmission, and the output end of the transmission is connected with the transmission frame through the universal coupling; the driving motor is turned on, the transmission frame is rotated through the transmission and the universal coupling, and therefore the practicability of the equipment is improved.

[0011] Preferably, the adjusting mechanism comprises a fixed seat and a hydraulic cylinder, the fixed seat is installed on the shell, one end of the hydraulic cylinder is rotatably installed on the fixed seat, and the other end of the hydraulic cylinder is rotatably installed on the support frame; the inclination of the transmission frame is adjusted through the extension or contraction of the hydraulic cylinder, and then the pumping amount of the plurality of plungers to the liquid is adjusted, and therefore the practicability of the equipment is improved.

[0012] Preferably, the inside of the pumping cylinder is provided with a power supply line for supplying power to the first electric control valve, the second electric control valve and the oil sensor, and the right end of the pumping cylinder is provided with a rotary joint connected with the power supply; and therefore the practicability of the equipment is improved.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the driving mechanism is turned on, the pumping mechanism is operated, the pumping amount of the pumping mechanism is adjusted through the adjusting mechanism, the liquid is continuously delivered through the pumping mechanism, and therefore the practicability of the equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is the first axonometric structure schematic view of the utility model;

[0015] Figure 2 is the second axonometric structure schematic view of the utility model;

[0016] Figure 3 is the front view structure schematic view of the utility model;

[0017] Figure 4 is the front view structure schematic view of the utility model;

[0018] Figure 5 is the front view enlarged structure schematic view of the plunger and the piston of the utility model;

[0019] Figure 6 is the A part enlarged structure schematic view in the utility model Figure 4 .

[0020] Marked in the drawing: 1, base; 2, shell; 3, drain pipe; 4, first check valve; 5, liquid inlet pipe; 6, second check valve; 7, connecting valve; 8, pumping cylinder; 9, plunger; 10, transmission frame; 11, support frame; 12, ball head; 13, pressure regulating cylinder; 14, piston; 15, first electric control valve; 16, second electric control valve; 17, oil sensor; 18, transmission; 19, drive motor; 20, universal coupling; 21, fixed seat; 22, hydraulic cylinder. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0022] Embodiment 1

[0023] An energy-saving variable plunger pump and servo motor integrated drive device, comprising a driving mechanism; further comprising a pumping mechanism and an adjusting mechanism, the driving mechanism and the adjusting mechanism are both installed on the pumping mechanism;

[0024] The driving mechanism provides power for the pumping mechanism, the adjusting mechanism adjusts the pumping volume, and the pumping mechanism transports liquid;

[0025] The pumping mechanism comprises a base 1, a shell 2, a drain pipe 3, a first check valve 4, a liquid inlet pipe 5, a second check valve 6, two groups of connecting valves 7, a pumping cylinder 8, two groups of plungers 9, a transmission frame 10, a support frame 11 and a pressure regulating mechanism, the shell 2 is installed at the top end of the base 1, and the base 1 is provided with a water inlet and a drain outlet, one end of the drain pipe 3 is installed on the drain outlet of the base 1 through the first check valve 4, one end of the liquid inlet pipe 5 is installed on the water inlet of the base 1 through the second check valve 6, the two groups of connecting valves 7 are respectively installed on the other end of the drain pipe 3 and the first check valve 4, the pumping cylinder 8 is rotatably installed in the base 1, and the inside of the pumping cylinder 8 is provided with a plurality of chambers, the plurality of plungers 9 are respectively slidably installed in the plurality of chambers of the pumping cylinder 8, one end of each of the plurality of plungers 9 is provided with a ball head 12, and the plurality of ball heads 12 are rotatably installed on the transmission frame 10, the transmission frame 10 is rotatably installed in the support frame 11, and the pressure regulating mechanism is installed on the pumping cylinder 8;

[0026] The pressure regulating mechanism comprises a plurality of pressure regulating cylinders 13, a plurality of pistons 14, a plurality of first electric control valves 15, a plurality of second electric control valves 16 and a plurality of oil liquid sensors 17, the plurality of pressure regulating cylinders 13 are installed on the pumping cylinder 8, and the plurality of pressure regulating cylinders 13 are communicated with a plurality of chambers in the pumping cylinder 8 respectively, the plurality of pistons 14 are slidingly installed in the plurality of pressure regulating cylinders 13 respectively, and the plurality of pistons 14 are connected with the plurality of plungers 9 respectively, the plurality of first electric control valves 15 are installed on the plurality of pistons 14 respectively, the plurality of second electric control valves 16 are installed on the plurality of pressure regulating cylinders 13 respectively, and the plurality of pressure regulating cylinders 13 are communicated with the plurality of chambers in the pumping cylinder 8 respectively, and the plurality of oil liquid sensors 17 are installed in the plurality of second electric control valves 16 respectively;

[0027] The driving mechanism comprises a transmission 18, a driving motor 19 and a universal coupling 20, the transmission 18 is installed on the base 1, the driving motor 19 is installed on the transmission 18, and the output shaft of the driving motor 19 is connected with the input end of the transmission 18, and the output end of the transmission 18 is connected with the transmission frame 10 through the universal coupling 20;

[0028] The inside of the pumping cylinder 8 is provided with a power supply line for supplying power to the first electric control valve 15, the second electric control valve 16 and the oil liquid sensor 17, and the middle part of the right end of the pumping cylinder 8 is provided with a rotary joint connected with a power supply;

[0029] The connecting valve 7 on the liquid inlet pipe 5 is connected with a liquid inlet pipeline, the connecting valve 7 on the liquid outlet pipe 3 is connected with a liquid outlet pipeline, the driving motor 19 is turned on, and the driving motor 19 drives the transmission 18 and the universal coupling 20, and then drives the transmission frame 10, so that the plurality of plungers 9 and the pumping cylinder 8 rotate,

[0030] and the inclination of the transmission frame 10 is adjusted by the extension or contraction of the hydraulic cylinder 22, and then during the rotation of the pumping cylinder 8, the plurality of plungers 9 repeatedly perform contraction and expansion movements in the pumping cylinder 8, in the initial stage of the operation of the device, when the plunger 9 moves to the left to perform a contraction movement, the piston 14 moves to the left with the plunger 9, so that a negative pressure environment is formed in the inside of the pressure regulating cylinder 13, then when the right end of the plunger 9 moves to the left side of the second electric control valve 16, the second electric control valve 16 is opened, the air in the chamber of the pumping cylinder 8 is sucked into the pressure regulating cylinder 13, then when the plunger 9 moves to the right to perform an expansion movement, the piston 14 moves to the right with the plunger 9, and then when the right end of the plunger 9 moves to the right side of the second electric control valve 16, the first electric control valve 15 is opened, so that the air in the pressure regulating cylinder 13 passes through the first electric control valve 15 and is discharged, then the above-mentioned actions are repeatedly performed until the oil liquid sensor 17 detects the liquid, then the second electric control valve 16 is closed and the first electric control valve 15 is opened, so that the plunger 9 transports the liquid, and the liquid passes through the liquid inlet pipe 5, the pumping cylinder 8 and the liquid outlet pipe 3 in turn and is then discharged, thereby improving the practicability of the device.

[0031] Example 2

[0032] As Figures 1 to 6 shown, an energy-saving variable plunger pump and servo motor integrated drive device, comprising a drive mechanism; also comprising pumping mechanism and adjusting mechanism, drive mechanism and adjusting mechanism are installed on the pumping mechanism;

[0033] The drive mechanism provides power for the pumping mechanism, the adjusting mechanism adjusts the pumping capacity, and the pumping mechanism transports the liquid;

[0034] The pumping mechanism comprises a base 1, an outer shell 2, a liquid discharge pipe 3, a first one-way valve 4, a liquid inlet pipe 5, a second one-way valve 6, two groups of connecting valves 7, a pumping cylinder 8, two groups of plungers 9, a transmission frame 10, a support frame 11 and a pressure regulating mechanism, the outer shell 2 is installed on the top end of the base 1, and the base 1 is provided with a water inlet and a water outlet, one end of the liquid discharge pipe 3 is installed on the water outlet of the base 1 through the first one-way valve 4, one end of the liquid inlet pipe 5 is installed on the water inlet of the base 1 through the second one-way valve 6, the two groups of connecting valves 7 are respectively installed on the other end of the liquid discharge pipe 3 and the first one-way valve 4, the pumping cylinder 8 is rotatably installed in the base 1, and the inside of the pumping cylinder 8 is provided with a plurality of groups of chambers, a plurality of groups of plungers 9 are slidably installed in the plurality of groups of chambers of the pumping cylinder 8, one end of each of the plurality of groups of plungers 9 is provided with a ball head 12, and the plurality of ball heads 12 are rotatably installed on the transmission frame 10, the transmission frame 10 is rotatably installed in the support frame 11, and the pressure regulating mechanism is installed on the pumping cylinder 8;

[0035] The pressure regulating mechanism comprises a plurality of groups of pressure regulating cylinders 13, a plurality of groups of pistons 14, a plurality of groups of first electric control valves 15, a plurality of groups of second electric control valves 16 and a plurality of groups of oil liquid sensors 17, the plurality of groups of pressure regulating cylinders 13 are installed on the pumping cylinder 8, and the plurality of groups of pressure regulating cylinders 13 are respectively communicated with the plurality of groups of chambers in the pumping cylinder 8, the plurality of groups of pistons 14 are slidably installed in the plurality of groups of pressure regulating cylinders 13, and the plurality of groups of pistons 14 are respectively connected with the plurality of groups of plungers 9, the plurality of groups of first electric control valves 15 are respectively installed on the plurality of groups of pistons 14, the plurality of groups of second electric control valves 16 are respectively installed on the plurality of groups of pressure regulating cylinders 13, and the plurality of groups of pressure regulating cylinders 13 are respectively communicated with the plurality of groups of chambers in the pumping cylinder 8, the plurality of groups of oil liquid sensors 17 are respectively installed in the plurality of groups of second electric control valves 16;

[0036] The drive mechanism comprises a transmission 18, a drive motor 19 and a universal joint 20, the transmission 18 is installed on the base 1, the drive motor 19 is installed on the transmission 18, and the output shaft of the drive motor 19 is connected with the input end of the transmission 18, the output end of the transmission 18 is connected with the transmission frame 10 through the universal joint 20;

[0037] The adjusting mechanism comprises a fixed seat 21 and a hydraulic cylinder 22, the fixed seat 21 is installed on the outer shell 2, one end of the hydraulic cylinder 22 is rotatably installed on the fixed seat 21, and the other end of the hydraulic cylinder 22 is rotatably installed on the support frame 11;

[0038] The inside of the pumping cylinder 8 is provided with a power supply line for supplying power to the first electric control valve 15, the second electric control valve 16 and the oil sensor 17, and the middle of the right end of the pumping cylinder 8 is provided with a rotary joint connected with the power supply;

[0039] The connecting valve 7 on the liquid inlet pipe 5 is connected with the liquid inlet pipe, the connecting valve 7 on the liquid outlet pipe 3 is connected with the liquid outlet pipe, the driving motor 19 is turned on, the driving motor 19 is driven through the transmission 18 and the universal joint 20, and then the driving frame 10 is driven, so that the plurality of plungers 9 and the pumping cylinder 8 are rotated,

[0040] The inclination of the driving frame 10 is adjusted through the adjusting mechanism, and then the plurality of plungers 9 repeatedly perform the contraction and expansion movements in the pumping cylinder 8 during the rotation of the pumping cylinder 8, in the initial stage of the operation of the equipment, when the plunger 9 moves to the left to perform the contraction movement, the piston 14 moves to the left along with the plunger 9, so that the negative pressure environment is formed in the inside of the pressure regulating cylinder 13, then when the right end of the plunger 9 moves to the left side of the second electric control valve 16, the second electric control valve 16 is opened, the air in the chamber of the pumping cylinder 8 is sucked into the pressure regulating cylinder 13, then when the plunger 9 moves to the right to perform the expansion movement, the piston 14 moves to the right along with the plunger 9, and then when the right end of the plunger 9 moves to the right side of the second electric control valve 16, the first electric control valve 15 is opened, so that the air in the pressure regulating cylinder 13 is discharged through the first electric control valve 15, and then the above-mentioned actions are repeatedly performed until the liquid sensor 17 detects the liquid, then the second electric control valve 16 is closed and the first electric control valve 15 is opened, so that the plunger 9 transports the liquid, and the liquid sequentially passes through the liquid inlet pipe 5, the pumping cylinder 8 and the liquid outlet pipe 3 and is then discharged, thereby improving the practicability of the equipment.

[0041] The first one-way valve 4, the second one-way valve 6, the second electric control valve 16, the oil sensor 17, the transmission 18 and the driving motor 19 of the energy-saving variable plunger pump integrated driving device are purchased on the market, and the technical personnel in the industry only needs to install and operate according to the use instruction manual attached thereto, without the need for the technical personnel in the field to pay creative labor.

[0042] The above-mentioned is only the preferred embodiment of the utility model, and it should be pointed out that for the ordinary technical personnel in the technical field, a number of improvements and modifications can be made without departing from the technical principle of the utility model, and these improvements and modifications should be regarded as the protection range of the utility model.

Claims

1. An energy-saving variable plunger pump and servo motor integrated drive device, comprising a driving mechanism; characterized in that, The driving mechanism and the adjusting mechanism are both mounted on the pumping mechanism; The driving mechanism provides power for the pumping mechanism, and the adjusting mechanism adjusts the pumping amount, and the pumping mechanism transports liquid.

2. The integrated drive of claim 1, wherein the servo motor is a brushless servo motor. The pumping mechanism comprises a base (1), a shell (2), a liquid discharge pipe (3), a first one-way valve (4), a liquid inlet pipe (5), a second one-way valve (6), two groups of connecting valves (7), a pumping cylinder (8), two groups of plungers (9), a transmission frame (10), a support frame (11) and a pressure regulating mechanism, the shell (2) is mounted on the top end of the base (1), the base (1) is provided with a water inlet and a water outlet, one end of the liquid discharge pipe (3) is mounted on the water outlet of the base (1) through the first one-way valve (4), one end of the liquid inlet pipe (5) is mounted on the water inlet of the base (1) through the second one-way valve (6), the two groups of connecting valves (7) are respectively mounted on the other end of the liquid discharge pipe (3) and the first one-way valve (4), the pumping cylinder (8) is rotatably mounted in the base (1), and the inside of the pumping cylinder (8) is provided with a plurality of groups of cavities, the plurality of groups of plungers (9) are respectively slidably mounted in the plurality of groups of cavities of the pumping cylinder (8), one end of each of the plurality of groups of plungers (9) is provided with a ball head (12), and the plurality of groups of ball heads (12) are rotatably mounted on the transmission frame (10), the transmission frame (10) is rotatably mounted in the support frame (11), and the pressure regulating mechanism is mounted on the pumping cylinder (8).

3. The integrated drive of claim 2, wherein the servo motor is a brushless servo motor. The pressure regulating mechanism comprises a plurality of groups of pressure regulating cylinders (13), a plurality of groups of pistons (14), a plurality of groups of first electric control valves (15), a plurality of groups of second electric control valves (16) and a plurality of groups of oil liquid sensors (17), the plurality of groups of pressure regulating cylinders (13) are mounted on the pumping cylinder (8), and the plurality of groups of pressure regulating cylinders (13) are respectively communicated with the plurality of groups of cavities in the pumping cylinder (8), the plurality of groups of pistons (14) are respectively slidably mounted in the plurality of groups of pressure regulating cylinders (13), and the plurality of groups of pistons (14) are respectively connected with the plurality of groups of plungers (9), the plurality of groups of first electric control valves (15) are respectively mounted on the plurality of groups of pistons (14), the plurality of groups of second electric control valves (16) are respectively mounted on the plurality of groups of pressure regulating cylinders (13), and the plurality of groups of pressure regulating cylinders (13) are respectively communicated with the plurality of groups of cavities in the pumping cylinder (8), and the plurality of groups of oil liquid sensors (17) are respectively mounted in the plurality of groups of second electric control valves (16).

4. The integrated drive of claim 2, wherein the servo motor is a brushless servo motor. The driving mechanism comprises a transmission (18), a driving motor (19) and a universal coupling (20), the transmission (18) is mounted on the base (1), the driving motor (19) is mounted on the transmission (18), and the output shaft of the driving motor (19) is connected with the input end of the transmission (18), and the output end of the transmission (18) is connected with the transmission frame (10) through the universal coupling (20).

5. The integrated drive of claim 2, wherein the servo motor is a brushless servo motor. The adjusting mechanism comprises a fixed seat (21) and a hydraulic cylinder (22), the fixed seat (21) is mounted on the shell (2), one end of the hydraulic cylinder (22) is rotatably mounted on the fixed seat (21), and the other end of the hydraulic cylinder (22) is rotatably mounted on the support frame (11).

6. The integrated drive of claim 3, wherein the servo motor is a brushless servo motor. The inside of the pumping cylinder (8) is provided with power supply lines for the first electric control valve (15), the second electric control valve (16) and the oil sensor (17), and the middle of the right end of the pumping cylinder (8) is provided with a rotary joint connected with the power supply.

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