CN211924445U - Pressure adjustable high-pressure pump - Google Patents

Abstract

The utility model relates to the technical field of high-pressure pumps, in particular to a pressure-adjustable high-pressure pump, which comprises a frame, a sheet metal cover and a pressurizing mechanism; the installation of panel beating cover with in the frame, the panel beating covers to open there are inlet and liquid outlet, communicating pipe is worn to be equipped with by the inlet, locate communicating pipe between inlet and the booster mechanism and between booster mechanism and the liquid outlet, the panel beating cover is close to open the position of inlet has the backward flow mouth, pressure boost portion intercommunication has the backward flow case, pressure boost portion with through one-way pressure valve intercommunication between the backward flow case, the backward flow case passes through the back flow intercommunication to the backward flow mouth. The utility model discloses the effect that has is: when the pressure in the pipeline is excessive, namely the pressure is overhigh, the pressure can be automatically released.

Description

Pressure adjustable high-pressure pump

Technical Field

The utility model belongs to the technical field of the high-pressure pump technique and specifically relates to a pressure adjustable high-pressure pump is related to.

Background

In the use process of processing machines such as grinders, automatic lathes, numerically controlled lathes, stainless steel cutting machines, machine tools, shoe-making machines and the like, liquids such as engine oil or cutting fluid need to be pressurized.

The pressure pump of board itself self-carrying is difficult to satisfy the working demand sometimes, and the hydraulic pressure that provides is too high to lead to the pipeline to leak, fluid viscosity changes greatly, and the oil temperature risees, and fluid becomes rare, and then makes the transmission unstable, follow-up frequency that continues to use the leakage also can increase, leads to pressure to hang down on the low side.

SUMMERY OF THE UTILITY MODEL

To the deficiency that prior art exists, the utility model aims at providing a pressure adjustable high-pressure pump, its effect that has is: when the pressure in the pipeline is excessive, namely the pressure is overhigh, the pressure can be automatically released.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a pressure-adjustable high-pressure pump comprises a rack, a sheet metal cover and a pressurizing mechanism;

the installation of panel beating cover with in the frame, the panel beating covers to open there are inlet and liquid outlet, communicating pipe is worn to be equipped with by the inlet, locate communicating pipe between inlet and the booster mechanism and between booster mechanism and the liquid outlet, the panel beating cover is close to open the position of inlet has the backward flow mouth, pressure boost portion intercommunication has the backward flow case, pressure boost portion with through one-way pressure valve intercommunication between the backward flow case, the backward flow case passes through the back flow intercommunication to the backward flow mouth.

Through adopting above-mentioned technical scheme, when the pressure in the pipeline is excessive, when pressure was too high promptly, the oil circuit from the back flow returns, steps down hydraulic system to reduce the pipeline and leak, the oil temperature risees, and fluid becomes rare and then makes the emergence of the circumstances such as transmission unstability.

The utility model discloses further set up to: and a heat radiation fan is arranged between the return box and the return port, and the return pipe penetrates through a shell of the heat radiation fan.

Through adopting above-mentioned technical scheme, dispel the heat in to the panel beating cover through radiator fan, avoid the too high work that influences the delivery pump of the high temperature in the panel beating cover. Because the higher liquid temperature of hydraulic pressure is usually higher, radiator fan dispels the heat to the back flow simultaneously, avoids the overheated back flow of damaging of liquid in the back flow pipe or scald operating personnel.

The utility model discloses further set up to: an oil path block is arranged at the position of the liquid outlet, and the communicating pipe is communicated to the oil path block.

Through adopting above-mentioned technical scheme, through setting up the oil circuit piece, the oil circuit piece has compact structure, maintains convenient characteristics, simplifies hydraulic system's installation, maintenance, change and the maintenance in later stage.

The utility model discloses further set up to: the panel beating covers the up end and is provided with the prefabricated liquid outlet of a plurality of, the spot welding has the dust board on the prefabricated liquid outlet.

Through adopting above-mentioned technical scheme, when a liquid outlet can't satisfy the working requirement, dismantle the dust board, use prefabricated liquid outlet.

The utility model discloses further set up to: an access hole is formed in one side of the metal plate cover, and an access door is arranged on the access hole.

Through adopting above-mentioned technical scheme, through setting up the access door, the maintenance personal of being convenient for overhauls.

The utility model discloses further set up to: the access door orientation be provided with the rib on the inside one side of panel beating cover is interior, the rib is for using steel sheet four sides turn-ups to form.

Through adopting above-mentioned technical scheme, through setting up the rib, strengthen the bending resistance of access door, increase the intensity of access door.

The utility model discloses further set up to: the frame is provided with four universal wheels.

Through adopting above-mentioned technical scheme for this pressure adjustable high-pressure pump is convenient for remove.

To sum up, the utility model discloses a following at least one useful technological effect:

1. when the pressure in the hydraulic system is too high, returning from an oil way of the return pipe to reduce the pressure of the hydraulic system;

2. the heat dissipation fan dissipates heat to the return pipe, and avoids the liquid in the return pipe from being overheated to damage the return pipe or scald an operator.

Drawings

Fig. 1 is a schematic view of an overall structure of an embodiment of the present invention;

fig. 2 is a schematic view of the overall structure of an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a rack according to an embodiment of the present invention;

fig. 4 is a schematic structural view of the inside of the sheet metal cover according to an embodiment of the present invention;

fig. 5 is a schematic structural view of an access door according to an embodiment of the present invention.

In the figure, 1, a frame; 11. a universal wheel; 2. a sheet metal cover; 21. a liquid inlet; 22. a liquid outlet; 23. an access hole; 24. an access door; 241. a reinforcing portion; 25. prefabricating a liquid outlet; 251. a dust guard; 26. a return port; 3. a pressurization mechanism; 31. a drive member; 32. a pressurization part; 33. a return tank; 4. a filter; 5. a communicating pipe; 51. an oil circuit block; 6. a return pipe; 7. a heat dissipation fan.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Refer to fig. 1, do the utility model discloses a pressure adjustable high-pressure pump, including frame 1, panel beating cover 2 and booster mechanism 3. One side of the sheet metal cover 2 is provided with an access hole 23, and the access hole 23 is provided with an access door 24, so that maintenance personnel can conveniently maintain the sheet metal cover.

Referring to fig. 2, the upper end surface of the sheet metal cover 2 is provided with a plurality of prefabricated liquid outlets 25, and dust baffles 251 are spot-welded on the prefabricated liquid outlets 25. When one of the outlets 22 fails to meet the working requirement, the dust guard 251 is removed and the prepared outlet 25 is used.

Referring to fig. 1 and 5, a reinforcing portion 241 is provided on one side of the access door 24 facing the inside of the sheet metal cover 2, the reinforcing portion 241 is formed by flanging four sides of a steel plate, a nut is welded on the access door 24, and the reinforcing portion 241 is installed on the access door 24 by a bolt. By providing the reinforcement portion 241, the bending resistance of the access door 24 is enhanced, and the strength of the access door 24 is increased.

Referring to fig. 1 and 4, the sheet metal cover 2 is installed on the frame 1, the sheet metal cover 2 is provided with a liquid inlet 21 (refer to fig. 2) and a liquid outlet 22, the liquid inlet 21 is provided with a communicating pipe 5 in a penetrating manner, the communicating pipe 5 is arranged between the liquid inlet 21 and the supercharging mechanism 3 and between the supercharging mechanism 3 and the liquid outlet 22, and a filter 4 is arranged between the liquid inlet 21 and the supercharging mechanism 3. The supercharging mechanism 3 includes a drive member 31 and a supercharging portion 32, and an impeller driven by the drive member 31 is provided in the supercharging portion 32.

The driving piece 31 is selected from a VP-20-FA3 hydraulic oil pump motor, the motor of the type performs high-precision processing on a shaft center and a flange spigot, concentricity of the shaft center and the flange spigot is guaranteed after assembly, noise and vibration caused by misalignment of the pump and the motor are well solved, and meanwhile, the hydraulic oil pump motor is simple to mount, compact in structure, small in occupied space and safe and reliable because a rotating part is not exposed.

Wherein, the filter 4 can be selected as a high-pressure back-flushing filter 4 and the filter element is 1800 molybdenum. Under normal conditions, the turning valve of the filter 4 is opened, water flow is filtered by the filter 4 cylinder and then is discharged from the outlet, when the blowdown valve station of the filter 4 is opened, the total flow of the liquid passing through the filter 4 is increased, the flow rate is increased, impurities stuck on the pipe wall of the filter 4 are pushed, the impurities are discharged from the blowdown port, when the diverter valve on the filter 4 is closed and the drain valve is opened, the water flow is forced to enter the outside of the filter cylinder from the mesh of the inlet section of the filter cylinder, most of the water flows out of the outlet, and one part of the water flows into the inside of the filter cylinder from the outside of the filter 4 through the mesh of the impurity collecting section, the filter cartridge is back-flushed, so that the effect of flushing the impurities adhered to the mesh from the outside of the filter cartridge is achieved, the impurities are still discharged through the sewage discharge outlet, make filter 4 self can the backwash filter screen, need not operating personnel dismantle the filter screen and wash convenient operation.

Referring to fig. 3, the frame 1 is formed by welding a plurality of steel pipes, and four universal wheels 11 are installed on the lower end face of the frame 1, so that the pressure-adjustable high-pressure pump is convenient to move.

Referring to fig. 2 and 4, a return port 26 is formed in the sheet metal cover 2 at a position close to the liquid inlet 21, the pressurizing portion 32 communicates with a return tank 33, the pressurizing portion 32 communicates with the return tank 33 via a one-way pressure valve, and the return tank 33 communicates with the return port 26 via the return pipe 6. When the pressure in the pipeline is excessive, namely, the pressure is too high, the oil returns from the oil path of the return pipe 6 to reduce the pressure of the hydraulic system.

Referring to fig. 4, the radiator fan 7 is provided between the return tank 33 and the return port 26, and the return pipe 6 penetrates the casing of the radiator fan 7. Dispel the heat in to panel beating cover 2 through radiator fan 7, avoid the too high work that influences the delivery pump of the high temperature in the panel beating cover 2, because the higher liquid temperature of hydraulic pressure is higher usually, radiator fan 7 dispels the heat to back flow 6 simultaneously, avoids the overheated damage back flow 6 or the scald operating personnel of liquid in the back flow 6.

Referring to fig. 4, an oil path block 51 is disposed at the position of the liquid outlet 22, and the communication pipe 5 communicates with the oil path block 51. Through setting up oil circuit piece 51, oil circuit piece 51 has compact structure, maintains convenient characteristics, simplifies hydraulic system's installation, overhauls, changes and the maintenance in later stage.

The implementation principle of the embodiment is as follows:

when the pressure in the pipeline is excessive, namely the pressure is too high, the oil returns from the oil way of the return pipe 6 to reduce the pressure of the hydraulic system, so that the pipeline leakage is reduced, the oil temperature is increased, the oil becomes thin, and further the transmission is unstable.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (7)

1. A pressure adjustable high pressure pump characterized in that: comprises a frame (1), a sheet metal cover (2) and a supercharging mechanism (3);

sheet metal cover (2) installation with on frame (1), it has inlet (21) and liquid outlet (22) to open on sheet metal cover (2), communicating pipe (5) are worn to be equipped with in inlet (21), locating communicating pipe (5) between inlet (21) and booster mechanism (3) and between booster mechanism (3) and liquid outlet (22), sheet metal cover (2) are close to open the position of inlet (21) has backward flow mouth (26), booster mechanism (3) are including pressurization portion (32), pressurization portion (32) intercommunication has backward flow case (33), pressurization portion (32) with through the one-way pressure valve intercommunication between backward flow case (33), backward flow case (33) communicate to backward flow mouth (26) through back flow (6).

2. The pressure adjustable high pressure pump according to claim 1, wherein: and a heat radiation fan (7) is arranged between the return box (33) and the return port (26), and the return pipe (6) penetrates through a shell of the heat radiation fan (7).

3. The pressure adjustable high pressure pump according to claim 1 or 2, characterized in that: an oil path block (51) is arranged at the position of the liquid outlet (22), and the communicating pipe (5) is communicated to the oil path block (51).

4. The pressure adjustable high pressure pump according to claim 3, wherein: the metal plate cover is characterized in that a plurality of prefabricated liquid outlets (25) are formed in the upper end face of the metal plate cover (2), and dust baffles (251) are welded on the prefabricated liquid outlets (25).

5. The pressure adjustable high pressure pump according to claim 1, wherein: one side of the sheet metal cover (2) is provided with an access hole (23), and an access door (24) is arranged on the access hole (23).

6. The pressure adjustable high pressure pump according to claim 5, wherein: the access door (24) orientation be provided with rib (241) on the inside one side of panel beating cover (2), rib (241) are for forming with steel sheet four sides turn-ups.

7. The pressure adjustable high pressure pump according to claim 1, wherein: four universal wheels (11) are installed on the frame (1).

Images