Hydraulic servo all-in-one machine

Abstract

The utility model discloses a hydraulic servo all-in-one machine which comprises an oil pump, a servo motor and a radiator, the oil pump is provided with a first outlet, a second outlet, a first inlet and a second inlet, the first outlet is used for outputting oil, and the first inlet is used for returning oil; the servo motor is used for driving the oil pump, the oil pump is fixedly connected to the servo motor, and the servo motor is provided with a driver; the radiator is arranged in the driver and used for absorbing heat in the driver, the input end of the radiator communicates with the second outlet through an oil conveying pipe, and the output end of the radiator communicates with the second inlet through an oil return pipe. The driver can be cooled through the liquid cooling circulation system formed between the radiator in the driver and the oil pump, an independent cooling circulation system does not need to be additionally arranged, and therefore the occupied space and the use cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic systems, in particular to a hydraulic servo integrated machine. Background Art

[0002] The hydraulic system generally includes an oil tank and a hydraulic servo integrated machine. The hydraulic servo integrated machine is used to drive the oil circulation in the oil tank. The hydraulic servo integrated machine is composed of a servo motor and an oil pump. The servo motor drives the oil pump, thereby driving the oil circulation in the hydraulic system. The driver of the servo motor will overheat during operation. The existing technology dissipates heat for the driver by configuring a separate liquid cooling circulation system or an air cooling system, resulting in the hydraulic servo integrated machine occupying a large space as a whole, which is not conducive to installation and has a high cost of use. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art to at least a certain extent. To this end, the utility model provides a hydraulic servo integrated machine, which can dissipate heat from the driver through a liquid cooling circulation system formed between a radiator inside the driver and an oil pump, without the need to configure an additional separate cooling circulation system, thereby reducing the occupied space and use cost.

[0004] According to an embodiment of the utility model, a hydraulic servo integrated machine is provided, including an oil pump, a servo motor and a radiator, the oil pump is provided with a first outlet, a second outlet, a first inlet and a second inlet, the first outlet is used to output oil, and the first inlet is used to return oil; the servo motor is used to drive the oil pump, the oil pump is fixedly connected to the servo motor, and the servo motor has a driver; the radiator is arranged inside the driver, the radiator is used to absorb heat inside the driver, the input end of the radiator is connected to the second outlet through an oil delivery pipe, and the output end of the radiator is connected to the second inlet through an oil return pipe.

[0005] A hydraulic servo all-in-one machine of the utility model embodiment has at least the following beneficial effects: when in use, the oil pump drives the oil in the hydraulic system to circulate, the oil is output from the first outlet, and flows back to the oil pump from the first inlet, thereby realizing the oil circulation of the hydraulic system, and at the same time, the oil in the oil pump is output from the second outlet, and is transported to the radiator along the oil pipe. While flowing through the radiator, the oil absorbs and takes away the heat of the radiator, the oil flows out from the output end of the radiator, and flows back to the oil pump along the return oil pipe and the second inlet, the heated oil is mixed with the oil in the hydraulic system in the oil pump, and is cooled by heat exchange, thereby realizing the oil cooling cycle between the radiator and the oil pump, and the radiator absorbs the heat inside the driver and transfers the absorbed heat to the oil in the radiator, so that the driver can be oil-circulated and cooled, without the need to additionally configure a separate cooling circulation system, which can reduce the occupied space and use cost of the hydraulic servo all-in-one machine.

[0006] According to some embodiments of the present invention, the driver includes a plurality of components and a circuit board, the components are electrically connected to the circuit board, the heat sink is connected to the circuit board, and the plurality of components abut against the heat sink.

[0007] According to some embodiments of the present utility model, the radiator has an elongated strip shape, and the radiator is provided with a channel, and the channel is arranged along the length direction of the radiator.

[0008] According to some embodiments of the present invention, the plurality of elements are distributed at equal intervals along the length direction of the heat sink.

[0009] According to some embodiments of the utility model, a plurality of heat sinks are provided on the inner wall of the channel protruding inwardly, and the plurality of heat sinks are evenly spaced along the axial direction of the channel.

[0010] According to some embodiments of the present invention, the heat sink is annular in shape, and is coaxially disposed with the channel.

[0011] According to some embodiments of the present invention, the driver comprises a mounting shell, and the heat sink, the component and the circuit board are all arranged inside the mounting shell.

[0012] According to some embodiments of the utility model, the oil pump is provided with a plurality of connecting parts, the plurality of connecting parts are evenly spaced along the circumference of the oil pump, the connecting parts are penetrated by bolts, and the connecting parts are fixedly connected to the servo motor by the bolts.

[0013] According to some embodiments of the present invention, a fixing seat is connected to the bottom of the servo motor, and a mounting hole is formed in the fixing seat.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 This is a structural schematic diagram of a hydraulic servo integrated machine according to an embodiment of the utility model;

[0017] Figure 2 This is a structural schematic diagram of the hydraulic servo integrated machine of the embodiment of the utility model after the installation shell is hidden;

[0018] Figure 3 It is a cross-sectional view of the hydraulic servo integrated machine according to an embodiment of the utility model.

[0019] Description of reference numerals:

[0020] Oil pump 100, first outlet 110, second outlet 120, first inlet 130, second inlet 140, connecting portion 150, bolt 160, servo motor 200, driver 300, element 310, circuit board 320, mounting shell 330, radiator 400, channel 410, input end 411, output end 412, heat sink 413, oil delivery pipe 500, oil return pipe 600, fixing seat 700, mounting hole 710. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0024] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0025] It is understandable that, referring to Figures 1 to 3 The utility model is a hydraulic servo integrated machine, including an oil pump 100, a servo motor 200 and a radiator 400. The oil pump 100 is provided with a first outlet 110, a second outlet 120, a first inlet 130 and a second inlet 140. The first outlet 110 is used to output oil, and the first inlet 130 is used to return oil; the servo motor 200 is used to drive the oil pump 100, the oil pump 100 is fixedly connected to the servo motor 200, and the servo motor 200 has a driver 300; the radiator 400 is arranged inside the driver 300, and the radiator 400 is used to absorb the heat inside the driver 300. The input end 411 of the radiator 400 is connected to the second outlet 120 through an oil delivery pipe 500, and the output end 412 of the radiator 400 is connected to the second inlet 140 through an oil return pipe 600.

[0026] When in use, the oil pump 100 drives the oil in the hydraulic system to circulate, the oil is output from the first outlet 110, and flows back to the oil pump 100 from the first inlet 130, thereby realizing the oil circulation of the hydraulic system. At the same time, the oil in the oil pump 100 is output from the second outlet 120 and transported to the radiator 400 along the oil delivery pipe 500. While the oil flows through the radiator 400, it absorbs and takes away the heat of the radiator 400. The oil flows out from the output end 412 of the radiator 400 and flows along the return oil pipe 600 and the second inlet. 140 flows back to the oil pump 100, and the heated oil is mixed with the oil in the hydraulic system in the oil pump 100, and is cooled by heat exchange, thereby realizing the oil cooling cycle between the radiator 400 and the oil pump 100. The radiator 400 absorbs the heat inside the driver 300 and transfers the absorbed heat to the oil in the radiator 400, so that the driver 300 can be cooled by oil circulation, without the need to configure a separate cooling circulation system, which can reduce the occupied space and use cost of the hydraulic servo integrated machine. In addition, by fixing the oil pump 100 to the servo motor 200, the oil pump 100 and the servo motor 200 can be integrated into a whole, thereby reducing the occupied space of the hydraulic servo integrated machine and facilitating installation.

[0027] It should be noted that the first outlet 110, the second outlet 120, the first inlet 130 and the second inlet 140 are all connected to the inner cavity of the oil pump 100, so that the oil flowing back from the first inlet 130 to the oil pump 100 and the oil flowing back from the second inlet 140 to the oil pump 100 can be mixed and heat exchanged in the inner cavity of the oil pump 100, thereby cooling the oil after absorbing heat and heating up.

[0028] The oil pipeline 500 and the oil return pipe 600 can both be made of stainless steel or aluminum alloy, etc., which can improve the temperature resistance and corrosion resistance of the oil pipeline 500 and the oil return pipe 600, so as to reduce the risk of heat deformation or corrosion damage of the oil pipeline 500 and the oil return pipe 600 due to long-term oil transportation.

[0029] The oil pump 100 outputs oil to the hydraulic system through the first outlet 110, and the oil in the hydraulic system flows back to the oil pump 100 through the first inlet 130. When the servo motor 200 drives the oil pump 100 to work, it can drive the oil circulation in the hydraulic system while driving the oil circulation between the radiator 400 and the oil pump 100.

[0030] Conventionally, the driver 300 dissipates heat through an external separate liquid cooling circulation system, which has an independent oil circuit and can adjust the flow rate and pressure in the independent oil circuit. However, the hydraulic servo integrated machine of this embodiment can adjust the pressure and flow rate of the oil circuit by changing the diameter of the second inlet 140 and / or the second outlet 120, or by changing the inner diameter of the oil delivery pipe 500 and / or the oil return pipe 600, without the need for additional pressure and flow rate control devices, thereby reducing the use cost.

[0031] When it is impossible to adjust to the preset pressure and flow rate by changing the diameter of the second inlet 140 and the second outlet 120, or changing the inner diameter of the oil delivery pipe 500 and the oil return pipe 600, an oil circuit block and a throttle can be set at the second inlet 140 and / or the second outlet 120 to adjust the pressure and flow rate of the oil circuit, thereby improving the accuracy of the adjustment.

[0032] It is understandable that, referring to Figure 2 The driver 300 includes a plurality of components 310 and a circuit board 320, the components 310 are electrically connected to the circuit board 320, the heat sink 400 is connected to the circuit board 320, and the plurality of components 310 abut against the heat sink 400. By connecting the heat sink 400 to the circuit board 320 and a plurality of components 310 abutting against the heat sink 400, the heat of the circuit board 320 and the components 310 can be directly transferred to the heat sink 400, so as to improve the heat transfer efficiency, thereby improving the heat dissipation efficiency.

[0033] It should be noted that the heat in the driver 300 is mainly generated during the operation of the component 310, and the component 310 will transfer part of the heat to the circuit board 320. Therefore, the direct contact between the heat sink 400 and the component 310 and the circuit board 320 can improve the heat dissipation efficiency.

[0034] Specifically, refer to Figure 2 and Figure 3 The radiator 400 has a long strip shape, and is provided with a channel 410, which is arranged along the length direction of the radiator 400. Since the radiator 400 is provided with the channel 410, the oil absorbs and takes away the heat of the radiator 400 when flowing through the channel 410. By arranging the channel 410 along the length direction of the radiator 400, the contact area between the inner wall of the channel 410 and the oil can be increased, and the time for the oil to flow through the radiator 400 can be extended, thereby improving the heat exchange efficiency and the amount of heat exchange, and further improving the heat dissipation and cooling efficiency of the driver 300.

[0035] Specifically, refer to Figure 2 , multiple elements 310 are evenly spaced along the length direction of the radiator 400. By evenly spaced multiple elements 310 along the length direction of the radiator 400, multiple elements 310 can be dispersedly arranged on the radiator 400 and exchange heat with the radiator 400 individually, which can reduce the mutual influence of heat exchange between the elements 310, thereby improving the heat exchange efficiency between the elements 310 and the radiator 400, and the heat absorbed by the radiator 400 along the length direction can be evenly transferred to the wall surface of the channel 410, so as to improve the uniformity of heating the wall surface of the channel 410, thereby improving the heat exchange efficiency.

[0036] Specifically, refer to Figure 3 The inner wall of the channel 410 is provided with a plurality of heat sinks 413 protruding inwards, and the plurality of heat sinks 413 are evenly arranged along the axial direction of the channel 410. Since the inner wall of the channel 410 is provided with a plurality of heat sinks 413 protruding inwards, the heat of the radiator 400 can be transferred to the oil in the channel 410 through the heat sinks 413, and the plurality of heat sinks 413 are evenly arranged along the axial direction of the channel 410, the contact area between the inner wall of the channel 410 and the oil can be increased, thereby improving the heat exchange efficiency between the radiator 400 and the oil.

[0037] It should be noted that the heat sink 413 may be in a strip shape, a wave shape, a spiral shape, etc., which can increase the contact area between the inner wall of the channel 410 and the oil, so as to improve the heat exchange efficiency between the radiator 400 and the oil.

[0038] Specifically, refer to Figure 3, the heat sink 413 is annular in shape, and the heat sink 413 is coaxially arranged with the channel 410. By setting the heat sink 413 to be annular in shape, and the heat sink 413 is coaxially arranged with the channel 410, the oil can pass through the central hole of the heat sink 413, and the heat sink 413 is used to block the flow of the oil, which can reduce the flow speed of the oil, thereby extending the time for the oil to flow through the channel 410, thereby improving the heat exchange efficiency and the heat exchange amount. In addition, it is conducive to the oil to form a vortex in the channel 410, thereby improving the heat exchange efficiency.

[0039] Specifically, refer to Figures 1 to 3 The driver 300 includes a mounting shell 330, and the heat sink 400, the component 310, and the circuit board 320 are all arranged inside the mounting shell 330. Since the heat sink 400, the component 310, and the circuit board 320 are all arranged inside the mounting shell 330, the heat sink 400, the component 310, and the circuit board 320 are protected by the mounting shell 330, and the influence of the surrounding environment on the internal components of the mounting shell 330 can be reduced, thereby improving the stability of the operation of the servo motor 200.

[0040] It is understandable that, referring to Figure 1 The oil pump 100 is provided with a plurality of connecting parts 150, and the plurality of connecting parts 150 are evenly arranged at intervals along the circumference of the oil pump 100. The connecting parts 150 are penetrated with bolts 160, and the connecting parts 150 are fixedly connected to the servo motor 200 by the bolts 160. Since the connecting parts 150 are penetrated with the bolts 160, the connecting parts 150 can be fixedly connected to the servo motor 200 by tightening the bolts 160, so that the oil pump 100 is fixedly connected to the servo motor 200, which is convenient for disassembly, assembly and maintenance of the oil pump 100, and since the plurality of connecting parts 150 are evenly arranged at intervals along the circumference of the oil pump 100, the forces on the connecting parts 150 can be balanced, thereby improving the strength of the connection structure, and further improving the connection stability between the oil pump 100 and the servo motor 200.

[0041] It is understandable that, referring to Figure 1 and Figure 3 The bottom of the servo motor 200 is connected with a fixing seat 700, and the fixing seat 700 is provided with a mounting hole 710. By passing the bolt 160 through the mounting hole 710, the position of the servo motor 200 can be conveniently fixed, so as to facilitate the installation and fixing of the hydraulic servo integrated machine.

[0042] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A hydraulic servo integrated machine, characterized in that: include: An oil pump, wherein the oil pump is provided with a first outlet, a second outlet, a first inlet and a second inlet, wherein the first outlet is used to output oil, and the first inlet is used to return oil; A servo motor, used for driving the oil pump, the oil pump is fixedly connected to the servo motor, and the servo motor has a driver; A radiator is arranged inside the driver, and is used to absorb heat inside the driver. The input end of the radiator is connected to the second outlet through an oil pipeline, and the output end of the radiator is connected to the second inlet through an oil return pipe.

2. The hydraulic servo integrated machine according to claim 1, characterized in that: The driver includes a plurality of components and a circuit board, the components are electrically connected to the circuit board, the heat sink is connected to the circuit board, and the plurality of components abut against the heat sink.

3. The hydraulic servo integrated machine according to claim 2, characterized in that: The radiator has an elongated shape and is provided with a channel, which is arranged along the length direction of the radiator.

4. The hydraulic servo integrated machine according to claim 3, characterized in that: The plurality of elements are distributed at equal intervals along the length direction of the heat sink.

5. The hydraulic servo integrated machine according to claim 3, characterized in that: The inner wall of the channel is protruding inwardly to be provided with a plurality of heat sinks, and the plurality of heat sinks are evenly spaced along the axial direction of the channel.

6. The hydraulic servo integrated machine according to claim 5, characterized in that: The heat sink is annular in shape, and is coaxially arranged with the channel.

7. The hydraulic servo integrated machine according to claim 2, characterized in that: The driver comprises a mounting shell, and the heat sink, the element and the circuit board are all arranged inside the mounting shell.

8. The hydraulic servo integrated machine according to claim 1, characterized in that: The oil pump is provided with a plurality of connecting parts, and the plurality of connecting parts are evenly spaced along the circumference of the oil pump. Bolts are passed through the connecting parts, and the connecting parts are fixedly connected to the servo motor through the bolts.

9. The hydraulic servo integrated machine according to claim 1, characterized in that: The bottom of the servo motor is connected with a fixing seat, and the fixing seat is provided with a mounting hole.

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