CN220081849U - Hydraulic oil cooling equipment - Google Patents

Abstract

The utility model relates to hydraulic oil cooling equipment, which comprises a frame, a delivery pump, a radiator and a controller, wherein the delivery pump is arranged on the frame and comprises a pump outlet and a pump inlet, the pump inlet is used for communicating an oil tank, the radiator is arranged on the frame and comprises an oil outlet and an oil inlet, the pump outlet is communicated with the oil inlet, the oil outlet is used for communicating the oil tank, a temperature sensor is used for collecting the temperature of hydraulic oil, and the delivery pump, the radiator and the temperature sensor are respectively and electrically connected with the controller, and the radiator is used for cooling the hydraulic oil; this hydraulic oil cooling equipment can assist the temperature that reduces hydraulic oil in the hydraulic panel beating bender for the temperature of hydraulic oil is less than the threshold upper limit that sets for all the time, can effectively prevent to appear the too high problem of oil temperature, especially in summer high temperature weather, ensures that on-the-spot hydraulic panel beating bender can be normal, steady operation, in order to guarantee the production efficiency and the product quality of hydraulic panel beating bender.

Description

Hydraulic oil cooling equipment

Technical Field

The utility model relates to the technical field of hydraulic machinery cooling, in particular to hydraulic oil cooling equipment.

Background

With the continuous improvement of the industrial automation level, the hydraulic equipment is more and more widely applied to industrial production, and particularly to large sheet metal bending machines. The hydraulic metal plate bending machine utilizes the hydraulic oil to drive the oil cylinder to realize the bending processing of the metal plate, can realize high-precision and high-efficiency processing, and is one of indispensable equipment in the metal plate processing.

The existing hydraulic sheet metal bending machine is generally provided with an oil tank for storing hydraulic oil, the hydraulic oil is stored in the oil tank, the performance and stability of hydraulic equipment can be affected by the temperature of the hydraulic oil, a hydraulic oil cooling device is not arranged in some existing hydraulic sheet metal bending machines, a natural heat dissipation mode is adopted for cooling the hydraulic oil, some existing hydraulic sheet metal bending machines are provided with heat dissipation modules, so that the heat dissipation modules are utilized to accelerate to cooling the hydraulic oil, the temperature of the hydraulic oil can be properly increased in the actual operation process, but the temperature of the hydraulic oil can be kept in a design range, and the hydraulic sheet metal bending machine can normally operate.

However, along with the global warming of the air temperature, in a high-temperature environment in summer, especially a high-temperature environment higher than 38 degrees and even higher than 40 degrees, the environment temperature in a factory building is higher, the natural heat dissipation of a hydraulic metal plate bending machine and the heat dissipation requirement of hydraulic oil are difficult to meet through a self-contained heat dissipation module, the temperature of the hydraulic oil in the hydraulic metal plate bending machine in the factory building easily exceeds a normal design range, the hydraulic metal plate bending machine works in a high-oil temperature state, the processing quality of the hydraulic metal plate bending machine can be greatly reduced, and problems such as faults, even damage and the like can occur, so that the production efficiency and the production cost are seriously affected, and the problem is to be solved.

Disclosure of Invention

The first aspect of the present utility model provides an external hydraulic oil cooling device, which can help to reduce the temperature of hydraulic oil in a hydraulic sheet metal bending machine, so that the temperature of the hydraulic oil is always lower than a set upper threshold limit, the problem of overhigh oil temperature can be effectively prevented, and the hydraulic sheet metal bending machine can normally and stably operate in a high-temperature environment, and the main concept is that:

a hydraulic oil cooling device comprises a frame,

the delivery pump is arranged on the frame and comprises a pump outlet and a pump inlet, the pump inlet is used for communicating with the oil tank,

the radiator is arranged on the frame and comprises an oil outlet and an oil inlet, the pump outlet is communicated with the oil inlet, the oil outlet is used for communicating with the oil tank,

a temperature sensor for acquiring the temperature of the hydraulic oil, an

And the conveying pump, the radiator and the temperature sensor are respectively and electrically connected with the controller, and the radiator is used for cooling the hydraulic oil. In the scheme, the conveying pump is configured so as to provide power for the circulating flow of the hydraulic oil, the radiator is configured so as to be used for cooling the circulating flow of the hydraulic oil, and the temperature sensor is configured so as to monitor the actual temperature of the hydraulic oil; through configuration of the controller, the conveying pump, the radiator and the temperature sensor can be mutually matched so as to cool hydraulic oil under the control of the controller, prevent the temperature of the hydraulic oil from being greater than the set upper threshold limit, ensure that the hydraulic sheet metal bending machine can normally and stably operate, avoid the problems of processing quality reduction, failure, even damage and the like in high-temperature weather, and be beneficial to improving the production efficiency and the product quality; by configuring the frame and installing the conveying pump, the radiator, the temperature sensor and the controller on the frame, the device can form a whole with a heat dissipation function so as to be installed on a hydraulic sheet metal bending machine to dissipate heat and cool hydraulic oil, and can be quickly and conveniently installed and used on a production site; in addition, the device has the characteristics of small size, portability, low failure rate, convenient later maintenance and the like, and has higher practicability and market value.

Preferably, the radiator comprises a fan and a radiating part, a radiating channel is formed in the radiating part, two ends of the radiating channel are respectively communicated with the oil outlet and the oil inlet, and the fan is arranged at the position of the adaptive radiating part and used for accelerating air flow outside the radiating part. The hydraulic oil flows through a heat dissipation channel in the heat dissipation part, in the flowing process, the heat of the hydraulic oil is transferred to the inner surface of the heat dissipation part and then transferred to the outer surface of the heat dissipation part in a heat conduction mode, and finally the heat is subjected to heat convection between the outer surface of the heat dissipation part and the outside air, so that the heat of the heat dissipation part is continuously transferred to the outside air, and the cooling function of the hydraulic oil is realized; by configuring the fan, the flow of air around the heat radiating component can be accelerated, and the heat convection process is enhanced, so that the temperature of hydraulic oil can be effectively reduced. In addition, the radiator adopts the air-cooled radiator, and compared with the radiator with other structures, the radiator has the characteristics of simple structure, convenient maintenance, small volume and the like, so that the hydraulic oil cooling equipment can be smaller and more convenient to use and maintain.

In order to further enhance the heat dissipation effect, the heat radiator further comprises a shell which is arranged on the frame, a plurality of heat dissipation holes are respectively arranged on two opposite sides of the shell,

the heat dissipation part is arranged in the shell and positioned between the heat dissipation holes at the two sides, the oil outlet and the oil inlet are respectively arranged in the shell,

the fan is arranged between the heat radiating component and the heat radiating hole. Through disposing the shell to set up a plurality of louvres respectively in the relative both sides of shell, on the one hand, can play dustproof, waterproof and guard action, on the other hand, can form the air circulation passageway from one side louvre to the opposite side louvre in the shell, through setting up the fan between radiator unit and louvre for the fan is located this air circulation passageway, thereby can utilize fan drive air to flow along the air circulation passageway, so that the air force flows through radiator unit, and take the heat of radiator unit away in the in-process of passing through radiator unit, thereby can effectively strengthen the radiating effect.

In order to further enhance the heat dissipation effect, in some schemes, the heat dissipation component comprises a heat dissipation pipeline, two ends of the heat dissipation pipeline are respectively communicated with the oil outlet and the oil inlet, and the heat dissipation pipeline is arranged in a serpentine manner. Through with heat dissipation pipeline snakelike arrangement, can effectively increase the radiating area to can further strengthen the radiating effect.

In order to further enhance the heat dissipation effect, in some schemes, the heat dissipation part comprises a heat dissipation pipeline, two ends of the heat dissipation pipeline are respectively communicated with the oil outlet and the oil inlet, and a plurality of heat dissipation fins are arranged on the outer side surface of the heat dissipation pipeline. By arranging the radiating fins on the outer side of the radiating pipeline, the radiating area can be effectively increased, and the radiating effect can be further enhanced.

For ease of assembly, further, the oil outlet is configured with internal or external threads or flanges and the oil inlet is configured with internal or external threads or flanges. The assembly is convenient, and the sealing connection can be conveniently realized.

For ease of use, it is preferred that the temperature sensor be a non-contact temperature sensor. The hydraulic oil temperature in the hydraulic sheet metal bending machine oil tank is convenient to arrange and collect.

For ease of use, it is preferred that the temperature sensor is mounted to the housing.

The second aspect of the present utility model is to solve the problem of reducing the floor space, further, the rack includes an upper shelf and a lower shelf, the lower shelf is located below the upper shelf, the transfer pump is mounted on the lower shelf, and the radiator is mounted on the upper shelf. The radiator and the delivery pump can be arranged in a superposed mode along the height direction, so that the occupied area of equipment is effectively reduced, the size of the equipment is smaller, and the equipment is more convenient to install on the hydraulic sheet metal bending machine.

The third aspect of the utility model aims to solve the problem of improving the convenience and the universality of the hydraulic oil cooling equipment, and further comprises two adapters which are respectively arranged at two sides of an upper layer frame,

the adapter comprises an upper end interface and a lower end interface, the oil inlet is communicated with the upper end interface of one adapter through a pipeline, the upper end interface of the other adapter is used for communicating with the oil tank,

the pump outlet and the pump inlet are respectively communicated with the lower end interfaces of the two adapters through pipelines. Two adapters are respectively installed on two sides of the upper layer frame, so that one of the adapters can be selected to be connected with the oil tank according to actual needs during assembly, assembly is more convenient, convenience of the hydraulic oil cooling equipment is improved, the hydraulic oil cooling equipment is applicable to different occasions, and universality of the equipment is improved.

Preferably, the transfer pump is a gear pump. The gear pump can realize two-way conveying for when in actual use, the conveying direction of the gear pump can be changed as required, and two adapters above the gear pump are matched, so that the assembly is more convenient, and the universality is better.

For ease of assembly, further, the upper end interface is configured with internal or external threads or flanges and the lower end interface is configured with internal or external threads or flanges. So as to be detachably assembled.

In order to enable the device to stably operate, at least three spring damping shock absorbers for supporting the frame are further arranged at the bottom of the frame. During assembly, the device can be directly installed on the hydraulic sheet metal bending machine through the spring damping shock absorber, so that the device is prevented from occupying extra factory space, and meanwhile, the spring damping shock absorber can play a role in shock absorption, so that the device can be effectively prevented from being influenced by vibration of the hydraulic sheet metal bending machine, and can be stably operated.

Further, still include the switch board, the switch board install in the frame, the controller install in the switch board.

Further, the controller adopts a temperature controller, wherein,

the power supply loop of the conveying pump is provided with a first alternating current contactor which is electrically connected with a first intermediate relay, the temperature controller is electrically connected with the first intermediate relay,

the power supply loop of the fan is provided with a second alternating current contactor which is electrically connected with a second intermediate relay, the temperature controller is electrically connected with the second intermediate relay,

the temperature sensor is electrically connected with the temperature controller. So as to realize automatic control of the temperature of the hydraulic oil.

Further, the automatic switching device further comprises a switching switch and a starting button, wherein the switching switch adopts a manual/automatic switching switch, the switching switch is connected to a power supply loop of the first alternating current contactor and a power supply loop of the second alternating current contactor, the starting button is also connected to the power supply loop, the switching switch is also connected to a power supply loop of the temperature controller, and the switching switch is used for switching between a manual mode and an automatic mode. So that the user can set according to the needs, the use is more convenient, and the universality is improved.

Compared with the prior art, the hydraulic oil cooling equipment provided by the utility model can help to reduce the temperature of hydraulic oil in the hydraulic sheet metal bending machine, so that the temperature of the hydraulic oil is always lower than the set upper limit of the threshold value, the problem of overhigh oil temperature can be effectively prevented, especially in summer high-temperature weather, and the on-site normal and stable operation of the hydraulic sheet metal bending machine in a high-temperature environment is ensured, so that the production efficiency and the product quality of the hydraulic sheet metal bending machine are ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic three-dimensional structure diagram of a hydraulic oil cooling device according to an embodiment of the present utility model.

Fig. 2 is a schematic diagram of a three-dimensional structure of a hydraulic oil cooling device according to an embodiment of the present utility model.

Fig. 3 is a right side view of fig. 1, not showing the temperature sensor.

Fig. 4 is a partial front view of fig. 1.

Fig. 5 is a cross-sectional view at A-A in fig. 4.

Fig. 6 is a cross-sectional view at B-B in fig. 5.

Fig. 7 is a circuit diagram of a main circuit of a hydraulic oil cooling device according to embodiment 3 of the present utility model.

Fig. 8 is a circuit diagram of a control loop of a hydraulic oil cooling apparatus according to embodiment 3 of the present utility model.

Description of the drawings

Frame 1, lower shelf 11, upper shelf 12, side brackets 13, spring damping damper 14

Delivery pump 2, pump outlet 21, pump inlet 22

Radiator 3, shell 31, radiating hole 32, oil outlet 33, oil inlet 34, internal thread 35, fan 36, radiating pipe 37

Temperature sensor 4

Temperature controller 5

Power distribution cabinet 6, door 61

Adapter 7, upper end interface 71, lower end interface 72, external threads 73.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.

Example 1

Referring to fig. 1, in the present embodiment, a hydraulic oil cooling apparatus is provided, which includes a frame 1, a transfer pump 2, a radiator 3, a temperature sensor 4, a controller, and a power distribution cabinet 6, wherein,

the rack 1 is mainly used for bearing so as to provide a stable installation foundation for the installation of the conveying pump 2, the radiator 3, the controller and the power distribution cabinet 6, in practice, the rack 1 can adopt an existing structure, in order to save space, in practice, the rack 1 can be configured to comprise at least two layers of racks so as to arrange devices along the height direction, for example, as shown in fig. 1-3, in the embodiment, the rack 1 comprises an upper layer rack 12 and a lower layer rack 11, the lower layer rack 11 is positioned below the upper layer rack 12, the conveying pump 2 can be installed on the lower layer rack 11, and the radiator 3 can be installed on the upper layer rack 12, as shown in fig. 1-3, so that the radiator 3 and the conveying pump 2 can be installed in an overlapping manner along the height direction, thereby effectively reducing the occupied area of equipment, enabling the volume of the equipment to be smaller and more convenient to install on the hydraulic sheet metal bending machine. In practice, the structures of the upper shelf 12 and the lower shelf 11 can be determined according to actual requirements, and only a stable supporting effect is required, as shown in fig. 1-3, in this embodiment, the upper shelf 12 and the lower shelf 11 are both in plate-shaped structures, two sides of the upper shelf 12 and the lower shelf 11 are respectively connected through the side supports 13, and the side supports 13 are also in plate-shaped structures, so that the upper shelf 12, the lower shelf 11 and the side supports 13 jointly enclose a square cylindrical structure, as shown in fig. 1-3, so that the structure of the whole frame 1 is more stable, and the conveying pump 2 can be covered, thereby playing a role in isolating and protecting the conveying pump 2. In practice, the upper shelves 12, the lower shelves 11, and the side shelves 13 may preferably be made of high strength alloy sheet.

As shown in fig. 1-3, a delivery pump 2 is mounted on a frame 1, and the delivery pump 2 comprises a pump outlet 21 and a pump inlet 22, wherein the pump inlet 22 is used for communicating with an oil tank of a hydraulic sheet metal bending machine. In practice, the transfer pump 2 may be mounted to the lower shelf 11 of the frame 1 by fasteners such as bolts, with the pump outlet 21 and pump inlet 22 facing toward opposite sides of the frame 1, respectively, as shown in fig. 1-3. In practice, the transfer pump 2 may be an existing pump, such as a screw pump, a centrifugal pump, or the like.

In this embodiment, the radiator 3 is mounted on the frame 1, as shown in fig. 1-3, the radiator 3 may be specifically mounted on the upper shelf 12, meanwhile, the radiator 3 is configured with an oil outlet 33 and an oil inlet 34, when assembled, the pump outlet 21 and the oil inlet 34 are communicated through a pipeline, and when in use, the oil outlet 33 may be communicated with an oil tank of the hydraulic sheet metal bending machine through a pipeline, so that the oil tank of the hydraulic sheet metal bending machine, the delivery pump 2 and the radiator 3 may together form a circulation heat dissipation loop for circulation flow of hydraulic oil, so that the radiator 3 is used for heat dissipation and temperature reduction of the hydraulic oil. In this embodiment, the radiator 3 preferably adopts a fin radiator 3, a plate radiator 3, etc., but in the preferred embodiment provided in this embodiment, the radiator 3 adopts an air-cooled hydraulic oil radiator 3, for example, as shown in fig. 4 to 6, the radiator 3 includes a fan 36 and a heat dissipation component, a heat dissipation channel is configured in the heat dissipation component, two ends of the heat dissipation channel are respectively communicated with the oil outlet 33 and the oil inlet 34, the fan 36 is disposed at a position adapting to the heat dissipation component, for example, may be disposed on one side or two sides of the heat dissipation component, and the fan 36 is mainly used for accelerating air flow outside the heat dissipation component. In the actual operation process, the hydraulic oil circularly flows through a heat dissipation channel in the heat dissipation part, in the flowing process, the heat of the hydraulic oil is transferred to the inner surface of the heat dissipation part and then transferred to the outer surface of the heat dissipation part in a heat conduction mode, and finally the heat is subjected to heat convection between the outer surface of the heat dissipation part and the outside air, so that the heat of the heat dissipation part is continuously transferred to the outside air, and the cooling function of the hydraulic oil is realized; by configuring the fan 36, the flow of air around the heat dissipation member can be accelerated, and the heat convection process can be enhanced, so that the temperature of the hydraulic oil can be reduced more effectively.

In order to enhance the heat dissipation effect, in a more sophisticated solution, the heat sink 3 further includes a housing 31, as shown in fig. 1 and 2, the housing 31 is mounted on the rack 1, and a plurality of heat dissipation holes 32 are respectively provided on two opposite sides of the housing 31 for air circulation; as shown in fig. 4 and 5, the heat dissipation member is mounted in the housing 31 and located between the heat dissipation holes 32 on both sides, and as shown in fig. 1 and 2, the oil outlet 33 and the oil inlet 34 are respectively disposed in the housing 31 for assembly. Meanwhile, the fans 36 may be disposed between the heat dissipation member and the heat dissipation holes 32, the number of the fans 36 may be one, two or more, and the fans 36 may be disposed only at one side of the heat dissipation member, as shown in fig. 5, or the fans 36 may be disposed at both sides of the heat dissipation member, in this embodiment, by disposing the housing 31 and disposing the plurality of heat dissipation holes 32 at opposite sides of the housing 31, on the one hand, dust prevention, water prevention and protection effects may be achieved, on the other hand, an air circulation channel between one side of the heat dissipation holes 32 and the other side of the heat dissipation holes 32 may be formed in the housing 31, and by disposing the fans 36 between the heat dissipation member and the heat dissipation holes 32 such that the fans 36 are located in the air circulation channel, the air may be driven to flow along the air circulation channel by the fans 36, so that the air may forcedly flow through the heat dissipation member and the heat dissipation member may be carried away during the passage of the heat dissipation member, thereby effectively enhancing the heat dissipation effect.

In implementation, the heat dissipation part has various embodiments, for example, in one embodiment, the heat dissipation part may include a heat dissipation pipe 37, two ends of the heat dissipation pipe 37 are respectively communicated with the oil outlet 33 and the oil inlet 34, and the heat dissipation pipe 37 is arranged in a serpentine manner, as shown in fig. 4-6, by arranging the heat dissipation pipe 37 in a serpentine manner, the heat dissipation area can be effectively increased, and thus the heat dissipation effect can be further enhanced. For another example, in another embodiment, the heat dissipating component may include a heat dissipating pipe 37, where two ends of the heat dissipating pipe 37 are respectively communicated with the oil outlet 33 and the oil inlet 34, and a plurality of heat dissipating fins are installed on an outer side surface of the heat dissipating pipe 37, so that the heat dissipating area is increased by using the heat dissipating fins, and the heat dissipating effect may be further enhanced. Of course, when implementing, when arranging heat dissipation pipeline 37 snakelike, also can set up the fin in the outside of heat dissipation pipeline 37 to effectively increase the radiating area in limited heat dissipation space, obtain better, the cooling effect of higher efficiency.

The radiator 3 in this embodiment adopts the air-cooled radiator 3, and is smaller, more convenient installation, easy operation, easy to use than the equipment that adopts compression refrigerator, can be in the quick, convenient installation of production scene, is favorable to improving production efficiency. Meanwhile, regular cleaning, refrigerant replacement, maintenance and other works are not needed, so that the maintenance cost is greatly reduced, and the production cost is reduced. In addition, because the structure is simpler, the manufacturing cost is low, the service life is long, and the maintenance cost is low, so that the device has remarkable economic benefit. Compared with the scheme of additionally installing cooling water pipes on the hydraulic sheet metal bending machine, the occupied space is smaller, the cooling effect is more stable, and the cooling requirement of a high-temperature environment is met. Compared with the scheme adopting air cooling, the temperature control is simpler and easier to realize, and the cooling effect under the high-temperature environment is more stable and better.

In this embodiment, the temperature sensor 4 is mainly used for collecting the temperature of the hydraulic oil, and the delivery pump 2, the fan 36 in the radiator 3, and the temperature sensor 4 are respectively electrically connected with the controller, so as to realize automatic control of the temperature of the hydraulic oil. When implementing, temperature sensor 4 can adopt current temperature sensor 4, and temperature sensor 4 can lead to wire and controller and realize the electricity and be connected, and when the assembly, temperature sensor 4 can set up in the oil tank of hydraulic panel beating bender, also can install in frame 1, as shown in fig. 1, only need can gather the temperature of the interior hydraulic oil of oil tank in the hydraulic panel beating bender. In a preferred embodiment, the frame 1 of the device is arranged on a hydraulic sheet metal bending machine, the temperature sensor 4 adopts a high-precision non-contact temperature sensor 4 and corresponds to an oil tank of the hydraulic sheet metal bending machine so as to collect the temperature of hydraulic oil in the oil tank of the hydraulic sheet metal bending machine. In implementation, the controller may be an existing controller, such as a PLC, a single-chip microcomputer, a PC, etc., in which a temperature to be monitored is set in advance, and when the temperature collected by the temperature sensor 4 is greater than the temperature, the controller automatically controls the transfer pump 2 to start, so that hydraulic oil circulates, and automatically controls the fan 36 to start, so as to enhance heat dissipation.

For easy assembly, in implementation, the oil outlet 33 is configured with an internal thread 35 or an external thread 73 or a flange, and correspondingly, the oil inlet 34 may also be configured with an internal thread 35 or an external thread 73 or a flange, which is not only easy for assembly, but also convenient for realizing sealing connection. For example, as shown in fig. 1 and 2, the oil outlet 33 is configured with an internal thread 35, and at the same time, the oil inlet 34 is configured with an internal thread 35, so that when connecting pipes, detachable threaded connection can be conveniently realized, and waterproof adhesive tapes can be arranged between the threads, thereby conveniently realizing sealed connection and preventing oil leakage.

In practice, the power distribution cabinet 6 is mounted to the frame 1 as shown in fig. 1-3, and the controller is mounted to the power distribution cabinet 6. Of course, in practice, other devices may be preferably mounted to the power distribution cabinet 6, such as a switching power supply for supplying power to the controller, which is used to convert the voltage to a desired voltage and provide the voltage to the desired devices in the power distribution cabinet 6, also mounted in the power distribution cabinet 6. The power distribution cabinet 6 is provided with a door 61, and the door 61 is provided with a lock as shown in fig. 1 and 2.

When using this equipment, can install this equipment in the vicinity of hydraulic panel beating bender to use with hydraulic panel beating bender's cooperation, but in preferred embodiment, frame 1's bottom still sets up at least three spring damping bumper shock absorber 14 that are used for supporting frame 1, when the assembly, can be through spring damping bumper shock absorber 14 with this equipment direct mount on hydraulic panel beating bender, avoid this equipment to occupy extra factory building space, simultaneously, spring damping bumper shock absorber 14 can play the absorbing effect, can effectively prevent that hydraulic panel beating bender's vibrations from influencing this equipment, make this equipment can steady operation. In implementation, the number of the spring damping dampers 14 may be determined according to actual needs, for example, in this embodiment, four spring damping dampers 14 are provided at the bottom of the frame 1, as shown in fig. 1-3, and mounting holes are provided at the bottom of the spring damping dampers 14, so that the spring damping dampers 14 are fixed to the hydraulic sheet metal bending machine by using fasteners such as bolts or screws adapting to the mounting holes, so as to realize integrated installation of the device and the hydraulic sheet metal bending machine.

Example 2

The main difference between the embodiment 2 and the embodiment 1 is that the hydraulic oil cooling apparatus provided in the present embodiment further includes two connectors 7, the two connectors 7 are respectively mounted on two sides of the upper shelf 12, as shown in fig. 1-3, the radiator 3 may be located between the two connectors 7, and in implementation, the connectors 7 may be fixed to the frame 1 by welding, screwing, or the like.

In this embodiment, as shown in fig. 1-3, the adaptor 7 includes an upper end interface 71 and a lower end interface 72, the upper end interface 71 communicates with the lower end interface 72, and when assembled, the oil inlet 34 may communicate with the upper end interface 71 of one adaptor 7 through a pipe, and the upper end interface 71 of the other adaptor 7 may be used to communicate with an oil tank, accordingly; the pump outlet 21 and the pump inlet 22 are connected with the lower end interfaces 72 of the two adapters 7 through pipes, respectively. In this embodiment, through installing two adapter 7 respectively in the both sides of upper bracket 12 for can select one of them adapter 7 to connect the oil tank according to actual need when the assembly, not only make the assembly more convenient, be favorable to improving this hydraulic oil cooling equipment's convenience, be applicable to different occasions moreover, be favorable to improving equipment's commonality.

In a further embodiment, the conveying pump 2 is a gear pump, and the gear pump can realize bidirectional conveying, that is, the pump outlet 21 and the pump inlet 22 of the gear pump are mutually switched, so that when in actual use, the conveying direction of the gear pump can be changed according to the needs, and the gear pump is matched with the two adapters 7 above, so that a user can assemble according to the actual needs, thereby being beneficial to more convenient assembly and better universality. For example, in the field, when it is more convenient to input hydraulic oil into the transfer pump 2 from the left side, the adapter 7 located on the left side may be connected to the tank of the hydraulic sheet metal bending machine, and the lower end port 72 of the adapter 7 may be connected to any one port (the pump outlet 21 or the pump inlet 22) of the transfer pump 2 through a pipe. For another example, when hydraulic oil is more convenient to input into the delivery pump 2 from the right side on site, the adapter 7 positioned on the right side can be communicated with the oil tank of the hydraulic sheet metal bending machine, and the lower end interface 72 of the adapter 7 can be connected with any one port (the pump outlet 21 or the pump inlet 22) of the delivery pump 2 through a pipeline, so that the hydraulic sheet metal bending machine is very convenient. After the circulating heat dissipation loop of the hydraulic oil is formed, the hydraulic oil can be enabled to flow in a forward circulating mode by controlling the conveying pump 2, and can also flow in a reverse circulating mode by controlling the conveying pump 2, and the hydraulic oil can be controlled to flow in different directions alternately, so that the blocking of the circulating heat dissipation loop of the hydraulic oil can be effectively prevented, and an automatic blocking prevention function is achieved.

In a more sophisticated version, the upper end interface 71 is configured with internal threads 35 or external threads 73 or flanges, and likewise the lower end interface 72 is configured with internal threads 35 or external threads 73 or flanges for removable assembly. For example, as shown in fig. 3, in the present embodiment, the upper-end interface 71 and the lower-end interface 72 are respectively configured with external threads 73 so as to achieve detachable connection with the pipe by screw connection, which is advantageous in terms of easier operation.

Example 3

The main difference between the present embodiment 3 and the above embodiment 1 or embodiment 2 is that in the hydraulic oil cooling apparatus provided in this embodiment, the existing temperature controller 5 (or referred to as a temperature control module) of the controller is shown in fig. 2, for example, the controller may preferably use an existing E5CN temperature controller, so that the user can define the temperature to be monitored, and also can more accurately implement functions of automatic temperature monitoring, automatic control of the temperature of the hydraulic oil, and the like.

In this embodiment, as shown in fig. 7 and 8, the power supply circuit of the transfer pump 2 is provided with a first ac contactor, and the first ac contactor is used to control the on-off of the power supply circuit of the transfer pump 2; the first alternating current contactor is electrically connected with the first intermediate relay so as to control the state of the first alternating current contactor by using the first intermediate relay; meanwhile, the temperature controller 5 is electrically connected with the first intermediate relay, so that the temperature controller 5 can control the first intermediate relay, and further, the temperature controller 5 can control the start and stop of the conveying pump 2.

Similarly, in this embodiment, the power supply circuit of the fan 36 (it can be understood that in this embodiment, the fan 36 includes a motor, a fan 36 controller for controlling the start and stop of the motor, and a plurality of blades connected to the motor in a driving manner) is provided with a second ac contactor, where the second ac contactor is used to control the on/off of the power supply circuit of the fan 36, and when the power supply circuit of the fan 36 is connected, the fan 36 is started, and when the power supply circuit of the fan 36 is disconnected, the fan 36 is closed. The second alternating current contactor is electrically connected with the second intermediate relay so as to control the state of the second alternating current contactor by using the second intermediate relay; the temperature controller 5 is electrically connected with the second intermediate relay, so that the temperature controller 5 can control the second intermediate relay, and further, the temperature controller 5 can control the start and stop of the fan 36.

In this embodiment, the temperature sensor 4 is electrically connected to the temperature controller 5, and the temperature data collected by the temperature sensor 4 may be fed back to the temperature controller 5, so as to realize automatic control of the hydraulic oil temperature. For example, in one operation mode, when the temperature collected by the temperature sensor 4 is lower than the temperature set by the temperature controller 5 (the temperature should be lower than the upper limit of the temperature threshold set in the hydraulic sheet metal bending machine, for example, the upper limit of the temperature threshold set in the hydraulic sheet metal bending machine may be T1, the temperature exceeds T1, the alarm of the hydraulic sheet metal bending machine will alarm, the temperature set by the temperature controller 5 may be T2, and T2< T1), the fan 36 and the delivery pump 2 are both in the off state, and when the temperature collected by the temperature sensor 4 is higher than the temperature set by the temperature controller 5, the temperature controller 5 automatically controls the fan 36 and the delivery pump 2 to start so that the device starts to operate, so as to enhance the cooling effect on the hydraulic oil.

Of course, in a more sophisticated solution, the power supply circuit of the delivery pump 2 is also provided with a circuit breaker, as shown in fig. 7 and 8, and at the same time, the power supply circuit of the delivery pump 2 is also provided with a thermal relay, so as to protect the motor from overload; the power supply loop of the delivery pump 2 is also provided with a fuse so as to play a role in protecting current; the supply circuit of the transfer pump 2 is also provided with a motor protection switch in order to protect the motor comprehensively.

In order to improve the universality, in a further embodiment, the temperature controller further comprises a change-over switch and a start button, as shown in fig. 7 and 8, the change-over switch is preferably a manual/automatic change-over switch, the change-over switch is arranged on a power supply loop of the temperature controller 5, meanwhile, the change-over switch is arranged on the power supply loops of the first alternating current contactor and the second alternating current contactor, the start button is also arranged on the power supply loop, when the change-over switch is switched to an automatic position, the temperature controller 5 is electrified, so that the device can automatically operate, and when the change-over switch is switched to a manual position, the temperature controller 5 is powered off, so that the device can be manually started through the start button, and manual operation is realized.

As a preferred embodiment, as shown in fig. 7 and 8, a switching power supply VC is configured, the switching power supply VC is connected to a power line (including a live wire and a plurality of common lines), a main line is configured, the main line is connected to an anode output terminal of the switching power supply VC,

the main line is provided with a change-over switch S1, a start button S3 and a stop button S2, as shown in figure 8, the main line is connected with a coil wiring terminal A1 in a second intermediate relay KA2, the coil wiring terminal A2 in the second intermediate relay KA2 is connected with the negative electrode output end of a switching power supply VC through a wire,

as shown in fig. 8, the temperature sensor 4RT is electrically connected to the temperature controller 5, the switch S1 is connected to the positive input end ZD of the temperature controller 5 through a wire, the negative input end OV of the temperature controller 5 is connected, a master control output switch is configured in the temperature controller 5, one end of the master control output switch is connected to the positive input end ZD through a wire, the other end of the master control output switch is connected to the power line through a wire, the coil in the first ac contactor KM1 and the coil in the second ac contactor KM2 are connected in parallel to the wire, the normally open contact in the first intermediate relay KA1 and the normally open contact in the second intermediate relay KA2 are also connected in parallel to the wire, and the coil of the first intermediate relay KA1 is connected in series to the wire, as shown in fig. 8.

As shown in fig. 8, the coil connection terminal A2 in the second intermediate relay KA2 is connected to the normally open connection terminal A2 of the normally open contact in the first intermediate relay KA1 by a wire, as shown in fig. 8.

As shown in fig. 7 and 8, the main contact of the first ac contactor KM1 is connected to the power supply circuit of the transfer pump M1, and the normally open contact of the second ac contactor KM2 is connected to the power supply circuit of the fan M2, as shown in fig. 7 and 8.

In actual use, when the user switches the switch S1 to the automatic position, the temperature controller 5 is communicated with the main line through the switch S1, the temperature controller 5 is powered on, the temperature controller 5 and the temperature sensor RT connected with the temperature controller 5 start to work, when the temperature collected by the temperature sensor RT is higher than the temperature set by the temperature controller 5, the main control output switch of the temperature controller 5 is automatically closed, as shown in fig. 7 and 8, the coil of the first intermediate relay KA1 is automatically attracted, the normally open contact of the first intermediate relay KA1 is closed, the coil of the first ac contactor KM1 is automatically attracted, the main contact of the first ac contactor KM1 is closed, the delivery pump M1 is powered on and starts to work, and meanwhile, the coil of the second ac contactor KM2 is automatically attracted, the normally open contact of the second ac contactor KM2 is closed, the fan M2 is powered on and starts to work, and the purpose of automatic control is achieved.

In actual use, when a user switches the change-over switch S1 to a manual position, the temperature controller 5 is powered off and enters a manual control mode, when the user presses the start button S3, the coil of the second intermediate relay KA2 is automatically attracted, so that the normally open contact of the second intermediate relay KA2 is closed, the coil of the first alternating current contactor KM1 is automatically attracted, the main contact of the first alternating current contactor KM1 is closed, the delivery pump M1 is powered on and starts to work, and meanwhile, the coil of the second alternating current contactor KM2 is automatically attracted, the normally open contact of the second alternating current contactor KM2 is closed, the fan M2 is powered on and starts to work, so that cooling is started; when the user presses the stop button S2, the second intermediate relay KA2 is powered off, and the conveying pump M1 and the fan M2 are powered off and stopped, so that the purpose of manually controlling cooling is achieved.

Of course, in a more sophisticated version, a breaker QF and a fuse FU are also arranged between the power supply and the switching power supply, as shown in fig. 7 and 8. The main line is also provided with a sudden stop switch SB1, a thermal relay KH1, and the like, as shown in fig. 7 and 8.

In implementation, the first ac contactor, the second ac contactor, the first intermediate relay, the second intermediate relay, the switching power supply, the change-over switch, the start button, the stop button, the emergency stop switch, the circuit breaker, the fuse, the thermal relay, and the like may be mounted on the power distribution cabinet 6.

Example 4

The embodiment provides a hydraulic sheet metal bending machine, including the oil tank that is used for storing hydraulic oil, still include above-mentioned hydraulic oil cooling equipment, when the assembly, pump import 22 passes through pipeline and oil tank intercommunication, and the oil-out 33 passes through pipeline and oil tank intercommunication, so that through oil tank and hydraulic oil cooling equipment set up the supplementary cooling return circuit of a set of hydraulic oil, ensure that hydraulic oil of hydraulic sheet metal bending machine is in the design scope all the time under the high temperature environment, guarantee hydraulic sheet metal bending machine's production efficiency and product quality.

The hydraulic oil cooling equipment is assembled in the earlier stage to install the hydraulic panel beating bender in the factory building with this hydraulic oil cooling equipment, show through the in-service use: after the hydraulic metal plate bending machine in the factory building is provided with the hydraulic oil cooling equipment, the hydraulic oil temperature in the hydraulic system in the hydraulic metal plate bending machine can be ensured to be reduced to a proper level, and the expected cooling effect can be achieved. In particular, under the high-temperature environment in summer, the hydraulic sheet metal bending machine has no problem of overhigh temperature, and also has no problems of processing quality reduction, faults, even damage and the like caused by oil temperature.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model.

Claims (10)

1. A hydraulic oil cooling device is characterized by comprising a frame,

the delivery pump is arranged on the frame and comprises a pump outlet and a pump inlet, the pump inlet is used for communicating with the oil tank,

the radiator is arranged on the frame and comprises an oil outlet and an oil inlet, the pump outlet is communicated with the oil inlet, the oil outlet is used for communicating with the oil tank,

a temperature sensor for acquiring the temperature of the hydraulic oil, an

And the conveying pump, the radiator and the temperature sensor are respectively and electrically connected with the controller, and the radiator is used for cooling the hydraulic oil.

2. The hydraulic oil cooling apparatus according to claim 1, wherein the radiator includes a fan and a heat radiating member, a heat radiating passage is configured in the heat radiating member, both ends of the heat radiating passage are respectively communicated with the oil outlet and the oil inlet, and the fan is disposed at a position adapted to the heat radiating member for accelerating air flow outside the heat radiating member.

3. The hydraulic oil cooling apparatus according to claim 2, wherein the radiator further comprises a housing mounted to the frame, a plurality of heat dissipation holes being provided at opposite sides of the housing,

the heat dissipation part is arranged in the shell and positioned between the heat dissipation holes at the two sides, the oil outlet and the oil inlet are respectively arranged in the shell,

the fan is arranged between the heat radiating component and the heat radiating hole.

4. The hydraulic oil cooling apparatus according to claim 2, wherein the heat radiating member includes a heat radiating pipe, both ends of which are respectively communicated with the oil outlet and the oil inlet,

the heat dissipation pipeline is arranged in a serpentine mode, and/or a plurality of heat dissipation fins are arranged on the outer side face of the heat dissipation pipeline.

5. The hydraulic oil cooling apparatus according to claim 2, wherein the oil outlet is configured with an internal thread or an external thread or a flange, and the oil inlet is configured with an internal thread or an external thread or a flange;

the temperature sensor is a non-contact temperature sensor, and is arranged on the rack;

the bottom of the frame is also provided with at least three spring damping shock absorbers for supporting the frame;

still include the switch board, the switch board install in the frame, the controller install in the switch board.

6. The hydraulic oil cooling apparatus according to any one of claims 1 to 5, wherein the frame includes an upper shelf and a lower shelf, the lower shelf is located below the upper shelf, the transfer pump is mounted to the lower shelf, and the radiator is mounted to the upper shelf.

7. The hydraulic oil cooling apparatus according to claim 6, further comprising two adapters respectively installed at both sides of the upper shelf,

the adapter comprises an upper end interface and a lower end interface, the oil inlet is communicated with the upper end interface of one adapter through a pipeline, the upper end interface of the other adapter is used for communicating with the oil tank,

the pump outlet and the pump inlet are respectively communicated with the lower end interfaces of the two adapters through pipelines.

8. The hydraulic oil cooling apparatus according to claim 7, wherein the delivery pump is a gear pump;

and/or the upper end interface is provided with an internal thread or an external thread or a flange plate, and the lower end interface is provided with an internal thread or an external thread or a flange plate.

9. The hydraulic oil cooling apparatus according to any one of claims 2 to 5, wherein the controller is a temperature controller, wherein,

the power supply loop of the conveying pump is provided with a first alternating current contactor which is electrically connected with a first intermediate relay, the temperature controller is electrically connected with the first intermediate relay,

the power supply loop of the fan is provided with a second alternating current contactor which is electrically connected with a second intermediate relay, the temperature controller is electrically connected with the second intermediate relay,

the temperature sensor is electrically connected with the temperature controller.

10. The hydraulic oil cooling apparatus according to claim 9, further comprising a switch and a start button, wherein the switch is a manual/automatic switch, the switch is connected to a power supply circuit of the first ac contactor and the second ac contactor, and the start button is also connected to the power supply circuit, and the switch is further connected to a power supply circuit of the temperature controller, and the switch is used for switching between the manual mode and the automatic mode.