Motor pump set of operation vehicle and motor pump set integration box of motor pump set

Abstract

The utility model provides a motor pump set and a motor pump set integration box of a working vehicle, and relates to the technical field of motor pump sets, the motor pump set comprises a motor pump set main body, the motor pump set main body comprises an oil pump, a direct current motor, a driver, a buffer tank, an output pipeline and an integration box main body, the integration box main body comprises a bottom plate, a side plate and an upper sealing plate; a motor pump set body adopted by the device uses a direct-current motor as power, the direct-current motor and an oil pump are integrated, the direct-current motor is used for driving the oil pump to work, inlet oil enters the oil pump after being buffered and stabilized through a buffer tank, a traditional pneumatic mode is replaced with the design, working noise and vibration strength generated along with the working noise are reduced, and the working efficiency is improved. And the motor pump set main body is provided with the matched integrated box main body, so that the motor pump set main body is better supported and protected.

Description

Technical Field

[0001] The utility model relates to the technical field of motor pump units, in particular to a motor pump unit of a work vehicle and a motor pump unit integrated box thereof. Background Art

[0002] Existing work vehicles can replenish oil for equipment and vehicles through a pump unit. Most of the pump units used are pneumatic oil pumps. Although such pneumatic oil pumps have a low cost, they have a large working noise, can drive the conveying pipeline to vibrate during the working process, increase the risk of pipeline leakage, increase the equipment maintenance cost, and the existing pneumatic oil pumps lack a special integrated box and cannot be well supported and protected. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a motor pump unit of a work vehicle and a motor pump unit integrated box thereof, which have the advantages of reducing the working noise and the vibration intensity generated thereby, and giving better support and protection to the main body of the motor pump unit, and solve the technical problems that the pneumatic oil pump has a large working noise and can drive the conveying pipeline to vibrate during the working process; and lacks a special integrated box and cannot be well supported and protected.

[0004] The utility model provides a motor pump unit of a work vehicle and a motor pump unit integrated box thereof, including:

[0005] The main body of the motor pump unit, which includes:

[0006] An oil pump, on the outer wall of which a DC motor is fixedly assembled;

[0007] The output end of the DC motor is fixedly connected to the main shaft of the oil pump;

[0008] A driver, which is electrically connected to the DC motor;

[0009] A buffer tank, which is fixedly communicated with the input end of the oil pump, and the output end of the oil pump is fixedly connected with an output pipeline.

[0010] As a further optimized scheme, in order to control the flow rate of the oil output and avoid the backflow of the oil, a flow meter and a check valve are fixedly assembled on the output pipeline, and the check valve is located on the side close to the output end of the oil pump.

[0011] As a further optimized scheme, in order to more conveniently control the speed and rotation direction of the DC motor, and thus control the oil pump, a controller is further included, and the controller is electrically connected to the driver.

[0012] A motor pump unit integrated box, adopting the above-mentioned motor pump unit of a work vehicle, including:

[0013] The main body of the integrated box, which includes:

[0014] The bottom plate, with side plates fixedly assembled on its upper edge;

[0015] The upper sealing plate, which is buckled on the upper ends of the side plates, and fixing bolts are evenly screwed at positions between the upper sealing plate and the upper edges of the side plates;

[0016] There are three main bodies of the motor pump unit, and the drivers, oil pumps, and DC motors of the three main bodies of the motor pump unit are fixedly assembled on the upper surface of the bottom plate.

[0017] As a further optimization scheme, in order to facilitate the output end of the main body of the motor pump unit to extend to the outside of the integrated box body, an oil pump outlet is opened on the upper surface of the upper sealing plate, and the output end of the main body of the motor pump unit passes through the oil pump outlet and extends to the outside.

[0018] As a further optimization scheme, in order to support and strengthen the integrated box body, a support skeleton is fixedly assembled on the outer walls of the bottom plate and the side plates, and the support skeleton is welded by square steel tubes.

[0019] As a further optimization scheme, in order to ensure the strength of the side plates and the upper sealing plate and improve the mechanical strength of the bottom plate, the thickness of the bottom plate is 2.5 mm, and the thicknesses of the side plates and the upper sealing plate are 1.5 mm.

[0020] As a further optimization scheme, in order to facilitate the installation of the driver, oil pump, and DC motor and facilitate the extension of the input end of the oil pump out of the integrated box body, the bottom plate includes:

[0021] Cold-rolled steel plate, on which drive installation holes and motor pump unit installation holes are evenly opened along the length direction;

[0022] The drive installation holes and the motor pump unit installation holes are distributed at intervals;

[0023] The driver is fixedly assembled in the drive installation holes;

[0024] The oil pump and the DC motor are fixedly assembled in the motor pump unit installation holes;

[0025] An oil pump inlet is opened on the cold-rolled steel plate corresponding to the output end of the oil pump, and the input end of the oil pump passes through the corresponding oil pump inlet.

[0026] As a further optimization scheme, in order to hoist and fix the device at the position to be fixed, hoisting mounting seats are welded at both ends of the upper surface of the upper sealing plate along the width direction, and it includes:

[0027] A strip-shaped plate, which is welded on the upper surface of the upper sealing plate along the width direction;

[0028] Connecting ear plates are integrally formed by bending upwards at the left and right edges of the upper surface of the strip-shaped plate;

[0029] The connecting ear plate is evenly provided with mounting through holes along the length direction.

[0030] As a further optimization scheme, in order to play a wear-resistant and anti-corrosion protection role, the outer wall of the integrated box body is coated with a spray coating.

[0031] The utility model provides a motor pump unit of a work vehicle and an integrated box of the motor pump unit by improvement. Compared with the prior art, the following improvements and advantages are achieved:

[0032] The motor pump unit main body adopted by the device uses a DC motor as the power, integrates the DC motor and the oil pump into one, uses the DC motor to drive the oil pump to work, and the oil inlet first passes through the buffer tank for buffering and leveling and then enters the oil pump. The above design replaces the traditional pneumatic method, reduces the working noise and the resulting vibration intensity, reduces the risk of pipeline leakage, and reduces the equipment maintenance cost. The above motor pump unit main body is provided with a supporting integrated box body, which gives better support and protection to the motor pump unit main body. Description of the Drawings

[0033] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required to be used in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0034] Figure 1 It is a schematic structural diagram of the present utility model;

[0035] Figure 2 It is a schematic structural diagram of the integrated box body of the present utility model;

[0036] Figure 3 It is a schematic structural diagram of the bottom plate of the present utility model;

[0037] Figure 4 It is a schematic structural diagram of the support frame of the present utility model;

[0038] Figure 5 It is a schematic structural diagram of the lifting mounting seat of the present utility model.

[0039] Description of the reference numerals:

[0040] 1 - Motor pump unit main body, 11 - Oil pump, 12 - DC motor, 13 - Buffer tank, 14 - Driver, 2 - Check valve, 3 - Flowmeter, 4 - Controller, 5 - Integrated box main body, 51 - Bottom plate, 511 - Cold-rolled steel plate, 512 - Motor pump unit mounting hole positions, 513 - Driver mounting hole positions, 514 - Oil pump inlet, 52 - Side plate, 53 - Upper sealing plate, 6 - Oil pump outlet, 7 - Support skeleton, 8 - Lifting mounting seat, 81 - Strip plate, 82 - Connecting ear plate, 83 - Mounting through hole. Detailed implementation manners

[0041] The technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0042] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0043] In the description of the present utility model, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined. In addition, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0044] Please refer to Figures 1-5 , the present utility model provides a technical solution: a motor pump unit of a work vehicle, including:

[0045] The main body 1 of the motor pump unit, which includes:

[0046] An oil pump 11, on the outer wall of which a DC motor 12 is fixedly assembled. The DC motor 12 is connected to an external DC power supply, which is convenient for installation on a work vehicle for use. The oil pump 11 is driven to work by the DC motor 12.

[0047] The output end of the DC motor 12 is fixedly connected to the main shaft of the oil pump 11.

[0048] A driver 14, which is electrically connected to the DC motor 12. The driver 14 is used to control the rotation speed and direction of the DC motor 12, and thus control the operation of the oil pump 11.

[0049] A buffer tank 13, which is fixedly communicated with the input end of the oil pump 11. An output pipeline is fixedly connected to the output end of the oil pump 11. The buffer tank 13 buffers the incoming oil to maintain a constant pressure of the oil fluid.

[0050] In some embodiments, in order to control the flow rate of the outgoing oil and prevent the oil fluid from flowing back, a flow meter 3 and a check valve 2 are fixedly assembled on the output pipeline, and the check valve 2 is located on the side close to the output end of the oil pump 11. The flow meter 3 is used to control the flow rate of the outgoing oil, and the check valve 2 is used to prevent the oil fluid from flowing back.

[0051] In some embodiments, in order to more conveniently control the speed and direction of the DC motor 12, and thus control the oil pump 11, a controller 4 is further included. The controller 4 is electrically connected to the driver 14. When in use, the controller 4 is electrically connected to the control cabinet in the work vehicle for unified control.

[0052] A motor pump unit integrated box, adopting the motor pump unit of the above-mentioned work vehicle, includes:

[0053] An integrated box main body 5, which includes:

[0054] A bottom plate 51, on the upper edge of which side plates 52 are fixedly assembled.

[0055] An upper sealing plate 53, which is buckled on the upper end of the side plates 52. Fixing bolts are evenly screwed between the upper sealing plate 53 and the upper edge of the side plates 52.

[0056] There are three motor pump unit main bodies 1. The drivers 14, oil pumps 11, and DC motors 12 of the three motor pump unit main bodies 1 are fixedly assembled on the upper surface of the bottom plate 51. The three motor pump unit main bodies 1 can work simultaneously to fill oil fluid into different devices or different positions of the same device, improving work efficiency.

[0057] The bottom plate 51 needs to be welded at multiple places to bear the internal components of the integrated box main body 5, and all external welding points need to be polished smoothly.

[0058] In some embodiments, in order to facilitate the extension of the output end of the motor pump unit main body 1 to the outside of the integrated box main body 5, an oil pump outlet 6 is provided on the upper surface of the upper sealing plate 53, and the output end of the motor pump unit main body 1 passes through the oil pump outlet 6 and extends to the outside.

[0059] In some embodiments, in order to support and strengthen the integrated box main body 5, a support skeleton 7 is fixedly assembled on the outer walls of the bottom plate 51 and the side plates 52, and the support skeleton 7 is welded by square steel tubes and has high mechanical strength.

[0060] In some embodiments, in order to ensure the strength of the side plates 52 and the upper sealing plate 53 and improve the mechanical strength of the bottom plate 51, the thickness of the bottom plate 51 is 2.5 mm, and the thicknesses of the side plates 52 and the upper sealing plate 53 are 1.5 mm.

[0061] In some embodiments, in order to facilitate the installation of the driver 14, the oil pump 11, and the DC motor 12 and facilitate the extension of the input end of the oil pump 11 out of the integrated box main body 5, the bottom plate 51 includes:

[0062] Cold-rolled steel plate 511, on which driver installation hole positions 513 and motor pump unit installation hole positions 512 are evenly arranged along the length direction. There are three driver installation hole positions 513 and motor pump unit installation hole positions 512 corresponding to the motor pump unit main body 1;

[0063] The driver installation hole positions 513 and the motor pump unit installation hole positions 512 are spaced apart;

[0064] The driver 14 is fixedly assembled in the driver installation hole position 513. The driver 14 is fixed in the driver installation hole position 513 by bolts, which is convenient for disassembly and installation;

[0065] The oil pump 11 and the DC motor 12 are fixedly assembled in the motor pump unit installation hole position 512. The oil pump 11 and the DC motor 12 are fixed in the motor pump unit installation hole position 512 by bolts, which is convenient for disassembly and installation;

[0066] An oil pump inlet 514 is provided on the cold-rolled steel plate 511 corresponding to the output end of the oil pump 11, and the input end of the oil pump 11 passes through the corresponding oil pump inlet 514.

[0067] In some embodiments, in order to hoist and fix the device at the position to be fixed, hoisting mounting seats 8 are welded to both ends of the upper surface of the upper sealing plate 53 along the width direction, and it includes:

[0068] Strip-shaped plate 81, which is welded to the upper surface of the upper sealing plate 53 along the width direction;

[0069] Connecting ear plates 82 are integrally formed by bending upward at the left and right edges of the upper surface of the strip-shaped plate 81;

[0070] Mounting through holes 83 are evenly formed along the length direction of the upper edge of the connecting ear plate 82, and the mounting through holes 83 of the connecting ear plate 82 are fixedly connected to the operation vehicle ceiling through bolts and nuts.

[0071] In some embodiments, in order to play a wear-resistant and anti-corrosion protection role, the outer wall of the integrated box body 5 is coated with a plastic spraying coating, and the plastic spraying coating uses black paint.

[0072] Working principle:

[0073] The DC motor 12 is connected to an external DC power supply, which is convenient for installation on the operation vehicle for use. The oil pump 11 is driven to work by the DC motor 12. The driver 14 is used to control the rotation speed and direction of the DC motor 12, and thus control the work of the oil pump 11. The buffer tank 13 is fixedly communicated with the input end of the oil pump 11. The output end of the oil pump 11 is fixedly connected with an output pipeline. The buffer tank 13 buffers the incoming oil to maintain a constant pressure of the oil fluid. The above design replaces the traditional pneumatic method, reduces the working noise and the resulting vibration intensity, reduces the risk of pipeline leakage, and reduces the equipment maintenance cost. The above motor pump unit main body 1 is provided with a supporting integrated box body 5, which gives better support and protection to the motor pump unit main body 1.

[0074] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A motor pump set of a work vehicle, characterized in that Comprising: The main body of the motor pump unit (1), which includes: An oil pump (11), on the outer wall of which a DC motor (12) is fixedly assembled; The output end of the DC motor (12) is fixedly connected to the main shaft of the oil pump (11); A driver (14), which is electrically connected to the DC motor (12); A buffer tank (13), which is fixedly communicated with the input end of the oil pump (11), and the output end of the oil pump (11) is fixedly connected with an output pipeline.

2. The motor pump unit of a work vehicle according to claim 1, wherein, A flow meter (3) and a check valve (2) are fixedly assembled on the output pipeline, and the check valve (2) is located on the side close to the output end of the oil pump (11).

3. The motor pump unit of a work vehicle according to claim 1, characterized in that, It further includes a controller (4), and the controller (4) is electrically connected to the driver (14).

4. A motor pump unit integrated box, which adopts the motor pump unit of a work vehicle according to any one of claims 1-3, is characterized in that Comprising: The main body of the integrated box (5), which includes: A bottom plate (51), on the upper edge of which side plates (52) are fixedly assembled; An upper sealing plate (53), which is buckled on the upper end of the side plate (52), and fixing bolts are evenly screwed between the upper sealing plate (53) and the upper edge of the side plate (52); There are three motor pump unit bodies (1), and the drivers (14), oil pumps (11), and DC motors (12) of the three motor pump unit bodies (1) are fixedly assembled on the upper surface of the bottom plate (51).

5. The integrated box of an electric pump unit according to claim 4, characterized in that An oil pump outlet (6) is opened on the upper surface of the upper sealing plate (53), and the output end of the motor pump unit body (1) extends to the outside through the oil pump outlet (6).

6. The integrated box of the motor pump unit according to claim 4, characterized in that, Support skeletons (7) are fixedly assembled on the outer walls of the bottom plate (51) and the side plate (52), and the support skeletons (7) are welded by square steel tubes.

7. The integrated box of the motor pump unit according to claim 4, characterized in that, The thickness of the bottom plate (51) is 2.5 millimeters, and the thicknesses of the side plate (52) and the upper sealing plate (53) are 1.5 millimeters.

8. The integrated box of an electric pump set according to claim 4, characterized in that, The bottom plate (51) includes: A cold-rolled steel plate (511), on which drive installation hole positions (513) and motor pump unit installation hole positions (512) are evenly opened along the length direction; The drive installation hole positions (513) and the motor pump unit installation hole positions (512) are spaced apart; The driver (14) is fixedly assembled in the drive installation hole positions (513); The oil pump (11) and the DC motor (12) are fixedly assembled in the motor pump unit installation hole positions (512); An oil pump inlet (514) is opened on the cold-rolled steel plate (511) corresponding to the output end of the oil pump (11), and the input end of the oil pump (11) passes through the corresponding oil pump inlet (514).

9. The integrated box of an electric pump set according to claim 4, wherein Lifting installation seats (8) are welded at both ends of the upper surface of the upper sealing plate (53) along the width direction, and it includes: A strip plate (81), which is welded on the upper surface of the upper sealing plate (53) along the width direction; Connecting ear plates (82) are integrally formed by bending upwards at the left and right edges of the upper surface of the strip plate (81); Installation through holes (83) are evenly opened along the length direction on the connecting ear plates (82).

10. The integrated box of an electric pump set according to claim 4, characterized in that, The outer wall of the integrated box main body (5) is coated with a spray coating.

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