1. A light hose pump based on metal punch forming and a control system thereof are characterized in that low-carbon steel is selected as a material of a hose pump shell, the shell of the hose pump is designed to be U-shaped and comprises a U-shaped bent plate, a side surface shaping plate, a sealing plate and a cover plate, the U-shaped bent plate is processed and manufactured by adopting a metal punch forming process, and is controlled by adopting a PLC (programmable logic controller) technology, as shown in figure 1, the hose pump and the control system thereof comprise a pump body (1), a coupler (2), a speed reducer (3), a motor power box (4), a motor (5) and a control box (24), wherein the motor (5) is connected with the speed reducer (3), and the speed reducer (3) is connected with a main shaft (7) of the hose pump through the coupler (2) and is fixed on a base (6); the hose pump comprises a main shaft (7), a triangular transmission plate (11), eccentric shafts (14), rollers (10), a hose fixing rod (13) and the like, wherein the triangular transmission plate (11) is respectively installed at two ends of the main shaft, the triangular transmission plate (11) is connected with the three eccentric shafts (14) through transmission bolts (12), the eccentric shafts are connected with the rollers (10) through rolling bearings (15), a hose is U-shaped in a shell and is fixed by the hose fixing rod (13), and when the hose pump runs, the three rollers sequentially extrude the hose, so that a medium in the hose is conveyed from a medium inlet (8) to a medium outlet (9); the control box (24) comprises a switching power supply (16), a transformer (17), a frequency converter (18), an air switch (19), a PLC (programmable logic controller) (20), a touch screen (21), a starting button (22) and a knob switch (23); the 380V three-phase alternating current is electrically connected with an air switch (19), a transformer (17), a switching power supply (16), a starting button (22) and a PLC (programmable logic controller) (20); the knob switch (23) is connected with the PLC (programmable logic controller) (20); the PLC (20) is connected with the touch screen (21); the PLC (20) is connected with a frequency converter (18), and the frequency converter is connected with a motor power box (4) of the hose pump.

2. The light-weight hose pump formed by stamping and forming metal and the control system thereof as claimed in claim 1, wherein the sealing plate and the sizing plate are correspondingly connected by bolts, and the end surfaces of the two sides of the U-shaped bent plate are welded to the inner side of the sealing plate by welding, so as to complete the assembly of the housing part.

3. The light-weight hose pump based on metal punch forming and the control system thereof as claimed in claim 1, wherein the sizing plate on the side of the pump body is provided with two round holes for facilitating lifting and carrying.

4. The lightweight hose pump based on metal stamping forming and the control system thereof as claimed in claim 1, wherein the eccentric shaft inside the pump body can properly adjust the eccentric gap.

Background

In practical application, the hose pump has good self-absorption capacity, can almost generate perfect vacuum to absorb liquid, can convey gas-liquid-containing and foam liquid without air resistance, is also very suitable for conveying high-viscosity and shear-sensitive media, and is widely applied to the industries such as water conservancy and hydropower, gold smelting, chemical industry, mining, food processing, brewing, agriculture and the like. Traditional casting formula hose pump is because weight is big, inconvenient transport, and there is the pollution in casting formula course of working, along with the continuous development of science and technology and material, in order to satisfy different operating modes and use and needs, the hose pump product needs further improvement in aspects such as specification, variety, processing mode. Therefore, it is very important to provide a light hose pump based on metal punch forming and a control system thereof.

Disclosure of Invention

The invention aims to solve the problems that a cast hose pump is high in processing cost, heavy in weight, inconvenient to carry, low in control automation degree and low in precision, and pollution exists in the cast processing process.

The technical scheme of the invention is as follows: adopt low carbon steel as hose pump shell material, rely on press and mould to exert external force to panel, make it produce plastic deformation, accomplish the processing of the hose pump shell of required shape and size, casing and curb plate adopt welding mode to connect, be fixed with the bearing frame on the curb plate, be used for fixing the main shaft, the triangle driving plate is installed at the main shaft both ends, three eccentric shaft is connected to the triangle driving plate, eccentric shaft connection gyro wheel, the hose becomes the U type in the casing, control box control hose pump operation based on PLC programmable controller, when hose pump operation, three gyro wheel extrudees the hose in proper order, realize the transport of medium from the entry to the export in the hose.

The invention has the following beneficial effects: the utility model provides a lightweight hose pump and control system based on metal stamping forming, utilizes the stamping forming mode to replace the casting formula to carry out hose pump casing processing, can avoid the material extravagant, alleviates hose pump's weight, improves production efficiency, and reduction in production cost adopts the PLC technique to realize automatic accurate control, improves automatic level.

Drawings

Fig. 1 is a schematic view of the overall structure of a hose pump according to the present invention.

Fig. 2 is a left side view of the hose pump according to the present invention.

Fig. 3 is a schematic structural view of a rotor part according to the present invention.

Fig. 4 is a schematic view of the roller structure according to the present invention.

Fig. 5 is a schematic structural view of a shell bending plate according to the present invention.

Fig. 6 is a schematic view of the internal arrangement of the control box according to the present invention.

Fig. 7 is a schematic view of the external arrangement of the control box according to the present invention.

Wherein the reference numerals are specified as follows: 1-a pump body; 2-a coupler; 3, a speed reducer; 4-motor power box; 5, a motor; 6-a base; 7-a main shaft; 8-a media inlet; 9-a medium outlet; 10-a roller; 11-a triangular transmission plate; 12-a drive bolt; 13-hose securing lever; 14-an eccentric shaft; 15-rolling bearings; 16-a switching power supply; 17-a transformer; 18-a frequency converter; 19-an air switch; 20-a PLC programmable controller; 21-a touch screen; 22-start button; 23-a knob switch; and 24, controlling the box. In addition, the hose and the front housing are not installed in fig. 1 for clearly showing the internal structure of the pump body of the hose pump.

Detailed Description

In order to more clearly illustrate the technical solution of the present invention, the following description will be made in conjunction with the accompanying drawings so as to be understood by those skilled in the art. The drawings illustrate only some embodiments of the invention.

Take a use of lightweight hose pump and control system at agricultural liquid manure integration based on metal stamping forming as an example, the hose pump of casting formula is heavy in weight in the use, inconvenient transport, and only rely on motor control, can't realize accurate automated control. Taking a common three-roller hose pump as an example, the bending plate is the most important part of the housing, and the size of the bending plate directly influences the working performance of the hose pump. According to the invention, the processing mode and the external structure of the hose pump shell are changed, the low-carbon steel plate is used as the U-shaped bent plate material of the hose pump shell, the hose pump shell is bent into a U shape through the procedures of trimming, bending and the like, and the sealing plate and the shaping plate are correspondingly connected through the bolts; next, the end surfaces of the two sides of the U-shaped bent plate are abutted against the sealing plate, and the U-shaped bent plate is welded with the inner side of the sealing plate; and welding the bent plate and the sealing plate together along the inner edge of the U-shaped bent plate in the shell to complete the assembly of the shell part.

As shown in fig. 1, a pump body of the hose pump is connected with a speed reducer through a coupler, the speed reducer is connected with a motor and is fixed on a base, and the coupler is connected with a main shaft of the hose pump. The two ends of a main shaft in a pump body of the hose pump are respectively provided with a triangular transmission plate, the triangular transmission plates are respectively connected with three eccentric shafts through transmission bolts, the eccentric shafts are connected with the rollers through rolling bearings, and after the hose pump works for a period of time, the interference of the rollers on the hose can be properly adjusted by adjusting the eccentric gaps of the eccentric shafts. The hose is U-shaped in the shell and is installed between the shell and the roller, one end of the hose is fixed below a front panel of the hose pump through a bolt to serve as a medium outlet of the hose pump and be connected with a drip irrigation pipeline in the field, and the other end of the hose is fixed above the front panel of the hose pump through a bolt to serve as a medium inlet of the hose pump and be connected with an outlet of a liquid fertilizer storage tank.

When the user uses, open hose pump control system through the start button, set up through control system's touch-sensitive screen fertilizer application amount, after PLC programmable controller and touch-sensitive screen start-up, the switch-on and the disconnection of knob on-off control PLC programmable controller input terminal, PLC programmable controller output terminal connects the converter, the terminal connection hose pump motor power supply box of converter. Set up the fast instruction of converter section into 35, 50, 65, rotatory to different positions when knob switch, the different terminal switch-ons of PLC programmable controller, the converter obtains different frequency instructions, and then the control hose pump operates under different rotational speeds, three gyro wheel extrudees the hose in proper order in the pump body, inhale fertile liquid from the medium entry, export fertile liquid from the medium, realize the transport of fertile liquid from the medium entry to the medium export in the hose, and then the completion is delivered the fertile liquid in the storage fertilizer jar to the job task in the drip irrigation pipeline through the hose pump.

The foregoing embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention, which is within the scope of the invention, as such insubstantial modifications of the inventive concepts and solutions, or their direct application to other applications without modification, are possible using the inventive concepts and solutions of the present invention.