Novel hydraulic wrench pump

Abstract

The utility model relates to the technical field of hydraulic wrench pumps, and discloses a novel hydraulic wrench pump which comprises a wrench pump body, a plurality of flow guide bent pipes are installed in an oil liquid channel of a backflow communication plate in a parallel communication mode, and the flow guide bent pipes are installed in an oil liquid backflow channel in a parallel communication mode. The backflow speed of oil can be reduced through flow division and communication of the multiple sets of flow guide bent pipes, the backflow stroke of the oil can be increased, heat in the oil can be fully conducted in a contact mode, the heat is dissipated to the upper portions of the cooling fins through conduction, efficient and rapid dissipation of the heat of the oil can be achieved in cooperation with circulation heat dissipation of the cooling fan, and the heat dissipation efficiency is improved. Compared with a traditional single-group elbow heat dissipation structure, the split-type elbow heat dissipation structure has a better heat dissipation effect, the split-type installation structure is adopted, the flow guide elbow, the heat conduction plate base and the heat dissipation fan are all of independent structures, the components can be independently and rapidly disassembled and assembled from outside to inside when needed, all the components can also be disassembled and separated as an overall function module, and therefore the heat dissipation effect is better. And the maintenance operation of the device is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic wrench pumps, and particularly relates to a new type of hydraulic wrench pump. Background Technique

[0002] Bolts are commonly used and very important parts in metallurgy, power plants, chemical industries, heavy assembly, petrochemical equipment, etc. Many parts are connected by bolts. Due to the need for installation and fastening, bolts in different structural parts have different installation torque requirements. In order to quickly and accurately fasten and install bolts, hydraulic wrenches are commonly used in the installation and fastening operations of bolts. Hydraulic wrenches play an irreplaceable role in the installation and disassembly of large-sized bolts and are very important tools. As the driving device of the hydraulic wrench, the hydraulic wrench pump is a necessary working device for the operation of the hydraulic wrench.

[0003] The hydraulic wrench pump can provide high-pressure driving oil to the hydraulic wrench through a high-pressure oil pump. Since the oil pressure is relatively high, the temperature of the oil will rise rapidly after the oil supply operation, and a large amount of heat will be carried in the return oil. To ensure the stable operation of the device, a heat dissipation structure needs to be set in the oil return pipeline. Existing hydraulic wrench pumps mostly adopt a bent-tube type oil heat dissipation structure, and the bent tubes are mostly set in a single group. Since the return oil still has a certain pressure and flow rate is relatively fast, relying only on the single-group bent-tube structure, it is difficult to effectively conduct and dissipate the heat of the oil, and the heat dissipation effect is not good. Therefore, a new type of hydraulic wrench pump is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a new type of hydraulic wrench pump to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a new type of hydraulic wrench pump, including a wrench pump body. An oil sump and a high-pressure oil pump are arranged at the lower part of the wrench pump body. A driving motor is installed at the driving end of the high-pressure oil pump. An electric control box and a quick connector are arranged at the upper part of the wrench pump body. A heat dissipation mechanism is arranged at the rear part of the wrench pump body;

[0006] The heat dissipation mechanism is used for the heat dissipation and temperature reduction of the return oil. The heat dissipation mechanism includes a return connection plate, a diversion bent tube, a heat conduction plate seat and a heat dissipation fan. A plurality of diversion bent tubes are provided, and several diversion bent tubes are connected in parallel and installed in the oil passage of the return connection plate. The heat conduction plate seat and the heat dissipation fan are sequentially installed at the rear part of the return connection plate.

[0007] Preferably, a plurality of universal wheels are arranged at the lower part of the wrench pump body, and the universal wheels are supported and installed at the lower part of the wrench pump body.

[0008] Preferably, the above oil tank is installed at the lower part of the wrench pump body. The liquid inlet end of the high-pressure oil pump is communicated with the liquid outlet end of the oil tank. The driving rotating shaft of the driving motor is fixedly connected to the driving shaft end of the high-pressure oil pump. The electric control box is installed on the upper side of the wrench pump body. The control output end of the electric control box is electrically connected to the driving end of the driving motor.

[0009] Preferably, the above quick connector is arranged at the front part of the wrench pump body. The quick connector is communicated with the liquid outlet end of the high-pressure oil pump. A pressure gauge is arranged at the front part of the wrench pump body. The pressure gauge is communicated and installed between the communication pipeline of the quick connector and the high-pressure oil pump. A protective frame is installed on the upper part of the wrench pump body.

[0010] Preferably, the above return connection plate is fixedly installed by bolts on the side of the bracket at the rear part of the wrench pump body. An oil pipe interface is arranged at the lower part of the return connection plate. The return connection plate is communicated and installed with the return pipeline through the oil pipe interface. The heat conduction plate seat is installed on the rear part of the return connection plate by bolts. Bending pipe embedding grooves are arranged on the installation fitting sides of the return connection plate and the heat conduction plate seat. The diversion bending pipe is fitted and installed inside the bending pipe embedding groove.

[0011] Preferably, a bending pipe fixing block is fixed on the upper part of the above diversion bending pipe. The bending pipe fixing block is fitted and engaged with the notch on the side of the bending pipe embedding groove. A fastening bolt is arranged on the upper part of the bending pipe fixing block. The diversion bending pipe is fixedly installed on the side of the heat conduction plate seat through the cooperation of the bending pipe fixing block and the fastening bolt. Bending pipe ends are arranged at both ends of the diversion bending pipe. Connecting jacks are arranged on both sides inside the bending pipe embedding groove. The bending pipe ends are inserted and installed inside the connecting jacks. The connecting jacks are communicated with the oil pipe interface.

[0012] Preferably, heat dissipation fins are installed at equal intervals vertically at the rear part of the above heat conduction plate seat. An installation support column is fixed at the rear part of the heat conduction plate seat. The installation support column is located between two adjacent heat dissipation fins. The heat dissipation fan is supported and installed on the rear part of the installation support column by bolts.

[0013] Compared with the prior art, the utility model adopts the above technical solutions and has the following technical effects:

[0014] This hydraulic wrench pump adopts a multi-group parallel heat dissipation elbow structure. A multi-group of diversion elbows are fitted and installed on the side of the return connection plate. The diversion elbows are connected and installed in the oil return channel in a parallel manner. Through the shunt connection of the multi-group of diversion elbows, the return speed of the oil can be reduced, and the return stroke of the oil can be increased to fully conduct heat contact with the heat in the oil. Through conduction, the heat is dissipated to the upper part of the heat dissipation fins. With the circulation heat dissipation of the cooling fan, the efficient and rapid dissipation of the heat of the oil can be achieved. It has a better heat dissipation effect compared with the traditional single-group elbow heat dissipation structure, and adopts a split installation structure. The diversion elbows, the heat conduction plate seat and the cooling fan are all set as independent structures. When needed, the components can be disassembled and assembled independently and quickly from the outside to the inside, or the components can be disassembled and separated as a whole functional module. The disassembly and assembly are convenient, which is conducive to the maintenance and repair operations of the device. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0016] Figure 1 Front side overall structure schematic diagram of the present utility model;

[0017] Figure 2 Rear side overall structure schematic diagram of the present utility model;

[0018] Figure 3 Front side split structure schematic diagram of the heat dissipation mechanism of the present utility model;

[0019] Figure 4 Rear side split structure schematic diagram of the heat dissipation mechanism of the present utility model;

[0020] Figure 5 Installation structure schematic diagram of the diversion elbow and the heat conduction plate seat of the present utility model.

[0021] Description of the reference numerals: 1, wrench pump body; 2, drive motor; 3, electric control box; 4, pressure gauge; 5, quick connector; 6, protective frame; 7, universal wheel; 8, heat dissipation mechanism; 9, return connection plate; 10, diversion elbow; 11, heat conduction plate seat; 12, cooling fan; 13, elbow slot; 14, elbow fixing block; 15, connection jack; 16, elbow end; 17, oil pipe interface; 18, heat dissipation fins; 19, installation support. Detailed Embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limited conditions that can be implemented in this application. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship, or adjustment of the size should still fall within the scope that can be covered by the technical content disclosed in this application without affecting the effects that this application can produce and the purposes that can be achieved.

[0024] Embodiment

[0025] Please refer to Figures 1-5 , the present utility model provides a technical solution: a new type of hydraulic wrench pump, including a wrench pump body 1. The wrench pump body 1 is an existing technical device, and the model of the wrench pump body 1 can be GXA-8.5. Therefore, the specific structure and connection relationship of the wrench pump body 1 will not be elaborated here, and only its main structure will be described herein. As shown in the attached Figure 1 figure, an oil storage tank and a high-pressure oil pump are provided at the lower part of the wrench pump body 1. The oil storage tank is installed at the lower part of the wrench pump body 1, and the liquid inlet end of the high-pressure oil pump is communicated with the liquid outlet end of the oil storage tank. In order to drive the operation of the high-pressure oil pump, a driving motor 2 is installed at the driving end of the high-pressure oil pump, and the driving rotating shaft of the driving motor 2 is fixedly connected to the driving shaft end of the high-pressure oil pump to complete the driving of the operation of the high-pressure oil pump.

[0026] As shown in the attached Figure 1 figure, an electric control box 3 and a quick connector 5 are provided at the upper part of the wrench pump body 1. The internal integrated control driving elements are provided in the electric control box 3, and the electric control box 3 is used for the driving control of the device. The electric control box 3 is installed at the side of the upper part of the wrench pump body 1, and the control output end of the electric control box 3 is electrically connected to the driving end of the driving motor 2 to control the operation of the driving motor 2. The quick connector 5 is provided at the front part of the wrench pump body 1, and the quick connector 5 is communicated with the liquid outlet end of the high-pressure oil pump for the connection and installation of the oil supply pipeline. In order to detect the oil supply pressure, a pressure gauge 4 is provided at the front part of the wrench pump body 1, and the pressure gauge 4 is connected in communication between the quick connector 5 and the communication pipeline of the high-pressure oil pump. In order to improve the structural protection of the wrench pump body 1, a protective frame 6 is installed at the upper part of the wrench pump body 1. In order to facilitate the movement of the wrench pump body 1, universal wheels 7 are provided at the lower part of the wrench pump body 1. As shown in the attached Figure 2As shown, there are four universal wheels 7, and the four universal wheels 7 are supported and installed at the four corners of the lower part of the wrench pump body 1.

[0027] In order to dissipate heat from the returned oil, a heat dissipation mechanism 8 is provided at the rear of the wrench pump body 1. The heat dissipation mechanism 8 includes a return connection plate 9, a diversion elbow 10, a heat conduction plate seat 11, and a cooling fan 12. As shown in the appendix Figure 2 As shown, the return connection plate 9 is fixedly installed on the side of the bracket at the rear of the wrench pump body 1 by bolts. In order to connect and install with the return oil pipe, an oil pipe interface 17 is provided at the lower part of the return connection plate 9, and the return connection plate 9 is connected and installed with the return pipeline through the oil pipe interface 17.

[0028] Both the return connection plate 9 and the heat conduction plate seat 11 can be made of aluminum alloy and have good heat conduction characteristics. The heat conduction plate seat 11 is installed on the rear of the return connection plate 9 by bolts. The diversion elbow 10 can be made of copper and has good heat conduction characteristics. As shown in the appendix Figure 4 As shown, there are three diversion elbows 10. In order to fit and install the diversion elbows 10, elbow fitting grooves 13 are provided on both the installation and fitting sides of the return connection plate 9 and the heat conduction plate seat 11. The diversion elbows 10 are fitted and installed inside the elbow fitting grooves 13. In order to install and fix the diversion elbows 10, as shown in the appendix Figure 5 As shown, a bend fixing block 14 is fixed on the upper part of the diversion elbow 10. The bend fixing block 14 is fitted and engaged with the notch on the side of the elbow fitting groove 13. A fastening bolt is provided on the upper part of the bend fixing block 14. The diversion elbow 10 is fixedly installed on the side of the heat conduction plate seat 11 through the cooperation of the bend fixing block 14 and the fastening bolt. In order to connect and install with the return connection plate 9, bend ends 16 are provided at both ends of the diversion elbow 10. Connection jacks 15 are provided on both sides inside the elbow fitting groove 13. The bend ends 16 are inserted and installed inside the connection jacks 15. The three diversion elbows 10 are connected in parallel in the oil passage of the return connection plate 9. The connection jacks 15 are connected to the oil pipe interface 17, and the circulation of oil can be realized. By the shunt connection of multiple groups of diversion elbows 10, the return speed of the oil can be reduced, and the return stroke of the oil can be increased to fully conduct the heat in the oil by contact. The heat is dissipated to the upper part of the heat dissipation fins 18 through conduction, and the efficient and rapid dissipation of the heat of the oil can be realized by the circulation heat dissipation of the cooling fan 12, which has a better heat dissipation effect than the traditional single-group elbow heat dissipation structure.

[0029] In order to accelerate the heat dissipation speed, the heat conduction plate seat 11 and the cooling fan 12 are sequentially installed at the rear of the return connection plate 9. In order to accelerate the heat dissipation, as shown in the appendix Figure 3As shown in the figure, heat dissipation fins 18 are vertically and equally spaced at the rear of the heat conduction plate base 11. The heat dissipation fins 18 can be made of aluminum alloy and have good heat conduction characteristics. In order to install and connect the heat dissipation fan 12, an installation support column 19 is fixed at the rear of the heat conduction plate base 11. The installation support column 19 is located between two adjacent heat dissipation fins 18. The heat dissipation fan 12 is supported and installed at the rear of the installation support column 19 by bolts. The diversion elbow 10, the heat conduction plate base 11, and the heat dissipation fan 12 are all set as independent structures. When needed, the components can be disassembled and assembled independently and quickly from the outside to the inside, or the components can be disassembled and separated as a whole functional module. The disassembly and assembly are convenient, which is conducive to the maintenance and repair operations of the device.

[0030] Working principle or structural principle: During operation, the device is moved to the working site as a whole by pushing. Then, the device is connected and installed to the liquid supply pipeline of the hydraulic wrench through the quick connector 5. After that, the equipment is started. Driven by the drive motor 2, the high-pressure oil pump located below the wrench pump body 1 pumps out the oil in the oil tank and pressurizes and transports it. It is transported into the hydraulic wrench through the voltage stabilization structure to drive the hydraulic wrench. During operation, the high-pressure oil flows back into the wrench pump body 1 through the return pipeline. The return oil enters the return connection plate 9 through the guide oil pipe. The oil enters through the liquid inlet end of the return connection plate 9 and is then divided into multiple diversion elbows 10 through the elbow end 16. The oil flows in the diversion elbows 10 and conducts heat to the heat conduction plate base 11 at the same time. The heat is conducted from the heat conduction plate base 11 to the heat dissipation fins 18. At the same time, the heat dissipation fan 12 works to accelerate the blowing of external air into the gaps between the heat dissipation fins 18. The high-speed flowing air carries away the heat on the upper part of the heat dissipation fins 18, realizing the dissipation and cooling of the heat of the oil. Then, the oil flows back into the inner side of the oil tank below the wrench pump body 1 through the return pipeline, and the heat dissipation cycle is completed in this way.

[0031] In summary, this hydraulic wrench pump adopts a multi-group parallel heat dissipation elbow structure. Multiple groups of diversion elbows 10 are fitted and installed on the side of the return connection plate 9. The diversion elbows 10 are connected in parallel in the oil return channel. By the shunt connection of multiple groups of diversion elbows 10, the return speed of the oil can be reduced, and the return stroke of the oil can be increased to fully conduct the heat in the oil by contact. The heat is dissipated to the upper part of the heat dissipation fins 18 through conduction. With the circulation heat dissipation of the heat dissipation fan 12, the heat of the oil can be efficiently and quickly dissipated. Compared with the traditional single-group elbow heat dissipation structure, it has a better heat dissipation effect. And it adopts a split installation structure. The diversion elbows 10, the heat conduction plate base 11, and the heat dissipation fan 12 are all set as independent structures. When needed, the components can be disassembled and assembled independently and quickly from the outside to the inside, or the components can be disassembled and separated as a whole functional module. The disassembly and assembly are convenient, which is conducive to the maintenance and repair operations of the device.

[0032] Those skilled in the art can understand that the features recited in the various embodiments and / or claims of the present utility model can be combined or / and combined in various ways, even if such combinations or combinations are not explicitly recited in the present utility model. In particular, without departing from the spirit and teachings of the present utility model, the features recited in the various embodiments and / or claims of the present utility model can be combined and / or combined in various ways. All such combinations and / or combinations fall within the scope of the present utility model.

Claims

1. A new type of hydraulic wrench pump, comprising a wrench pump body (1), characterized in that: A lower part of the wrench pump body (1) is provided with an oil sump and a high-pressure oil pump. A drive motor (2) is installed at a drive end of the high-pressure oil pump. An electric control box (3) and a quick connector (5) are arranged at an upper part of the wrench pump body (1). A heat dissipation mechanism (8) is arranged at a rear part of the wrench pump body (1); The heat dissipation mechanism (8) is used for dissipating heat of the returned oil fluid. The heat dissipation mechanism (8) includes a return connection plate (9), a diversion elbow pipe (10), a heat conduction plate seat (11) and a cooling fan (12). A plurality of the diversion elbow pipes (10) are provided. A plurality of the diversion elbow pipes (10) are installed in parallel and communicated in an oil fluid channel of the return connection plate (9). The heat conduction plate seat (11) and the cooling fan (12) are sequentially installed at a rear part of the return connection plate (9).

2. The novel hydraulic wrench pump according to claim 1, wherein: A plurality of universal wheels (7) are arranged at a lower part of the wrench pump body (1). The universal wheels (7) are supported and installed at the lower part of the wrench pump body (1).

3. A novel hydraulic wrench pump according to claim 1, characterized in that: The oil sump is installed at the lower part of the wrench pump body (1). A liquid inlet end of the high-pressure oil pump is communicated with a liquid outlet end of the oil sump. A drive rotating shaft of the drive motor (2) is fixedly connected with a drive shaft end of the high-pressure oil pump. The electric control box (3) is installed at a side of the upper part of the wrench pump body (1). A control output end of the electric control box (3) is electrically connected with a drive end of the drive motor (2).

4. A novel hydraulic wrench pump according to claim 3, characterized in that: The quick connector (5) is arranged at a front part of the wrench pump body (1). The quick connector (5) is communicated with a liquid outlet end of the high-pressure oil pump. A pressure gauge (4) is arranged at the front part of the wrench pump body (1). The pressure gauge (4) is communicated and installed between a communication pipeline of the quick connector (5) and the high-pressure oil pump. A protective frame (6) is installed at the upper part of the wrench pump body (1).

5. A novel hydraulic wrench pump according to claim 1, characterized in that: The return connection plate (9) is fixedly installed at a side of a bracket at the rear part of the wrench pump body (1) through bolts. An oil pipe interface (17) is arranged at a lower part of the return connection plate (9). The return connection plate (9) is communicated and installed with a return pipeline through the oil pipe interface (17). The heat conduction plate seat (11) is installed at the rear part of the return connection plate (9) through bolts. Bent pipe embedding grooves (13) are arranged at an installation and fitting side of the return connection plate (9) and the heat conduction plate seat (11). The diversion elbow pipe (10) is embedded and installed inside the bent pipe embedding groove (13).

6. The novel hydraulic wrench pump according to claim 5, characterized in that: A bent pipe fixing block (14) is fixed at an upper part of the diversion elbow pipe (10). The bent pipe fixing block (14) is in alignment and embedded with a notch at a side of the bent pipe embedding groove (13). A fastening bolt is arranged at an upper part of the bent pipe fixing block (14). The diversion elbow pipe (10) is fixedly installed at a side of the heat conduction plate seat (11) through cooperation of the bent pipe fixing block (14) and the fastening bolt. Bent pipe ends (16) are arranged at both ends of the diversion elbow pipe (10). Connection jacks (15) are arranged at both sides inside the bent pipe embedding groove (13). The bent pipe ends (16) are inserted and installed inside the connection jacks (15). The connection jacks (15) are communicated with the oil pipe interface (17).

7. A novel hydraulic wrench pump according to claim 6, characterized in that: The rear part of the heat conduction plate base (11) is vertically and equidistantly provided with heat dissipation fins (18). The rear part of the heat conduction plate base (11) is fixed with mounting struts (19). The mounting struts (19) are located between two adjacent heat dissipation fins (18). The heat dissipation fan (12) is supported and mounted on the rear part of the mounting struts (19) by bolts.

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