Hydraulic oil cooler

Abstract

The invention relates to the field of hydraulic oil cooling, in particular to a hydraulic oil cooler which comprises a tank body, a hydraulic oil inlet, a hydraulic oil outlet, a cooling liquid inlet and a cooling liquid outlet are formed in the tank body, two partition plates are fixedly arranged in the tank body, and a hydraulic oil storage area communicated with the hydraulic oil inlet and the hydraulic oil outlet is arranged between the two partition plates. Cooling liquid flowing areas communicated with the cooling liquid inlet and the cooling liquid outlet are arranged between the two partition plates and the tank body respectively, two cooling assemblies are arranged in the hydraulic oil storage area, a rotating shaft is arranged between the two cooling assemblies, and paddles are arranged on the rotating shaft. Kinetic energy of hydraulic oil is effectively absorbed through rotation of the paddles, the shaking amplitude of the hydraulic oil is reduced, along with rotation of the rotating shaft, the driving assembly drives the cooling pipes to reciprocate, the contact positions between the cooling pipes and the hydraulic oil are changed, the cooling effect is improved, and the cooling effect is improved. And the heat exchange efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of hydraulic oil cooling, and in particular to a hydraulic oil cooler. Background Art

[0002] Hydraulic oil is one of the five basic components of a ship's hydraulic system, and plays an important role in energy and signal transmission. Its quality has a significant impact on the performance and service life of the hydraulic system. The currently disclosed Chinese patent CN220929855U discloses a hydraulic oil cooler for a hydraulic system, comprising a cooling frame, a bottom plate, an oil filling pipe, and two L-shaped flange plates. The inner walls of both sides of the cooling frame are fixedly connected with a connecting pipe, and a plurality of cooling pipes are fixedly arranged between the two connecting pipes. A plurality of the cooling pipes are fixedly connected with connecting elbows between each other, and a plurality of heat dissipating fins are fixedly connected to the outer walls of the plurality of connecting elbows. In this patent, the oil flows inside the cooling pipe, and the cooling water in the cooling frame takes away the heat in the oil through the cooling pipe.

[0003] Although the above scheme can take away the heat in the hydraulic oil and reduce the oil temperature, the ship's hydraulic equipment is in an environment of high temperature, humidity, dust, water corrosion, etc., and the working conditions are very harsh. Since the ship is in a shaking state, the hydraulic oil will shake in the oil tank and the entire system, causing the liquid inside the equipment to shake, resulting in uneven heat exchange of the internal liquid and reducing the heat exchange effect. Summary of the invention

[0004] In view of the problems existing in the prior art, a hydraulic oil cooler is provided. The present invention effectively absorbs the kinetic energy of the hydraulic oil through the rotation of the blades, reduces the shaking amplitude of the hydraulic oil, and as the rotating shaft rotates, the driving component drives the cooling pipe to move back and forth, increases the contact area between the hydraulic oil and the cooling pipe, and improves the heat exchange efficiency.

[0005] In order to solve the problems of the prior art, the present invention provides a hydraulic oil cooler, comprising a tank body, wherein the tank body is provided with a hydraulic oil inlet and a hydraulic oil outlet, and a coolant inlet and a coolant outlet, two partitions are symmetrically and fixedly arranged in the tank body, a hydraulic oil storage area connected to the hydraulic oil inlet and the hydraulic oil outlet is between the two partitions, and a coolant flow area connected to the coolant inlet and the coolant outlet is between the two partitions and the tank body, two groups of cooling components are symmetrically arranged in the hydraulic oil storage area, each group of cooling components is provided with a plurality of cooling pipes arranged in parallel, and both ends of each cooling pipe are connected to the coolant The flow areas are connected, and a rotating shaft rotatably arranged on the tank body is provided between the two groups of cooling components. The axial direction of the rotating shaft is perpendicular to the axial direction of the tank body. The rotating shaft is evenly provided with a plurality of blades around its circumferential direction for reducing the shaking of the hydraulic oil. The cooling pipes can all move in a direction perpendicular to the axis of the tank body. The rotating shaft is also provided with a driving component that can synchronously drive the cooling pipes to reciprocate in the hydraulic oil during its rotation. When the power generated by the shaking of the hydraulic oil in the hydraulic oil storage area acts on the blades, the rotating shaft is in a rotating state, and the cooling pipes are synchronously in an active state.

[0006] Preferably, the blade is a plate-like structure, and is provided with an avoidance groove for avoiding each cooling tube during its rotation. The avoidance groove is opened vertically outward from the axis of the rotating shaft, and the opening of the avoidance groove is larger than the outer diameter of the cooling tube. The rotating shaft is provided with a hollow channel for the coolant to pass through along its axial direction. One end of the rotating shaft is an inlet, and the other end is an outlet. One end of the rotating shaft inlet is provided with a power component that uses the coolant as a power source to drive the rotating shaft to rotate.

[0007] Preferably, the cooling pipe is a pipeline structure with an arc-shaped middle part and straight ends. Both ends of the cooling pipe are provided with a guide pipe extending outward in a direction perpendicular to the axis of the tank body. Each guide pipe is connected to the corresponding coolant flow area with a drainage pipe, the drainage pipe is fixedly connected to the tank body, the guide pipe can move in the drainage pipe, and a telescopic rubber sleeve for maintaining a sealed state is fixedly provided between the guide pipe and the drainage pipe. A plurality of branch pipes extending in a direction perpendicular to the pipeline are also provided on the straight section of each cooling pipe, and each branch pipe is in a connected state with the cooling pipe.

[0008] Preferably, the driving assembly includes a transmission member arranged on the rotating shaft and located between the arc sections of the cooling pipes, and a reset connector arranged on each partition and connected to the guide pipes of each group of cooling pipes respectively. When the rotating shaft rotates so that the transmission member drives the cooling pipes to move outward synchronously, the reset connector is in a state of following the movement of the cooling pipes. After the rotating shaft rotates one circle, the reset connector drives the cooling pipes to be in a state of synchronous inward reset, so that the cooling pipes are in a reciprocating state with the cooperation of the transmission member and the reset connector.

[0009] Preferably, the transmission member has a pressure-applying portion symmetrically and fixedly arranged on the rotating shaft, and a pressure-receiving portion fixedly arranged on each arc section of the cooling tube. When the rotating shaft rotates to cause the two pressure-applying portions to pass through the pressure-receiving portions of the cooling tubes respectively, the cooling tubes are in a state of gradually moving outward.

[0010] Preferably, the pressure-applying portion is a block-shaped structure and extends along the axial direction of the rotating shaft. When the rotating shaft rotates, the pressure-applying portion is in a rotational state capable of synchronously acting on each cooling tube, so that each cooling tube can be synchronously pushed and fully contacted with the hydraulic oil.

[0011] Preferably, the pressure-receiving part is specifically an arc-shaped strip structure, the inner diameter of the pressure-receiving part is smaller than the inner diameter of the arc-shaped section of the cooling tube, the distance between the end of the pressure-applying part and the axis of the rotating shaft is greater than the inner diameter of the pressure-receiving part, and when the rotating shaft rotates, the pressure-applying part passes through the pressure-receiving part, so that the pressure-receiving part is in an active state of being pushed outward.

[0012] Preferably, both ends of the pressure-receiving portion have inclined guiding surfaces for the pressure-applying portion to rotate along the arc surface of the pressure-receiving portion.

[0013] Preferably, the end portion of the pressure-applying portion extending outward is rotatably provided with a roller for reducing the friction force generated by contact with the pressure-receiving portion.

[0014] Preferably, the reset connector has a movable shaft arranged perpendicular to the partition, and a connecting rod symmetrically and hinged on the movable shaft. The partition has a sleeve for the movable shaft to be slidably inserted therein, and a reset spring is fixedly connected between the movable shaft and the sleeve. The free end of each connecting rod is hinged to a connecting part, and the connecting part fixedly connects multiple cooling pipes on the same side. When the cooling pipes above the rotating shaft descend by their own gravity, the cooling pipes below the rotating shaft are in a state of resetting upward together under the transmission of the connecting rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention effectively absorbs the kinetic energy of the hydraulic oil through the rotation of the blades, reduces the shaking amplitude of the hydraulic oil, and the turbulence effect generated by the blades further disperses the kinetic energy of the hydraulic oil, making it more evenly distributed, reducing the formation of local high kinetic energy areas. As the rotating shaft rotates, the driving component is started, driving the cooling pipe to move back and forth, changing the contact position between the cooling pipe and the hydraulic oil, improving the heat exchange efficiency, allowing the coolant to more effectively take away the heat in the hydraulic oil, and improving the overall cooling effect.

[0017] 2. The present invention drives the rotating shaft to rotate by the impact of coolant on the blades, and combines the shaking of hydraulic oil as a power source, so that the rotation of the blades is more stable, ensuring the smooth operation of the cooling pipe, and allowing the cooling pipe to reciprocate stably and reliably during the movement process, ensuring that the cooling pipe is in full contact with the hydraulic oil, achieving a uniform and efficient cooling effect, and optimizing the power transmission and cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a three-dimensional structural schematic diagram of a hydraulic oil cooler.

[0019] Figure 2 The present invention is a partial three-dimensional structural cross-sectional view of the coolant inlet direction of a hydraulic oil cooler.

[0020] Figure 3 The present invention is a partial three-dimensional structural cross-sectional view showing the direction of the coolant outlet of a hydraulic oil cooler.

[0021] Figure 4 The present invention is a plan cross-sectional view of a hydraulic oil cooler.

[0022] Figure 5 yes Figure 4 A cross-sectional view of the three-dimensional structure at AA.

[0023] Figure 6 The present invention is a three-dimensional structural schematic diagram of a hydraulic oil cooler without the tank body.

[0024] Figure 7 It is a partial plan view of a hydraulic oil cooler without the tank.

[0025] Figure 8 yes Figure 7 A cross-sectional view of the three-dimensional structure at BB.

[0026] Fig. 9 yes Figure 4 Enlarged schematic diagram of point C.

[0027] Fig.10 yes Figure 4 Enlarged schematic diagram of point D.

[0028] The numbers in the figure are: 1. tank body; 11. hydraulic oil inlet; 12. hydraulic oil outlet; 13. coolant inlet; 14. coolant outlet; 2. partition; 21. hydraulic oil storage area; 22. coolant flow area; 3. cooling pipe; 31. guide pipe; 32. drainage pipe; 33. telescopic rubber sleeve; 34. branch pipe; 4. rotating shaft; 41. paddle; 42. hollow channel; 43. power assembly; 431. blade; 432. casing; 4321. pressurizing port; 5. driving assembly; 51. transmission part; 511. pressure-applying part; 5111. roller; 512. pressure-receiving part; 5121. guide surface; 52. reset connecting part; 521. movable shaft; 5211. bushing; 5212. reset spring; 522. connecting rod; 5221. connecting part. DETAILED DESCRIPTION

[0029] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] See also Figure 1-Figure 8 As shown, a hydraulic oil cooler comprises a tank body 1, wherein the tank body 1 is provided with a hydraulic oil inlet 11 and a hydraulic oil outlet 12, as well as a coolant inlet 13 and a coolant outlet 14, wherein two partitions 2 are symmetrically and fixedly arranged in the tank body 1, wherein a hydraulic oil storage area 21 connected to the hydraulic oil inlet 11 and the hydraulic oil outlet 12 is provided between the two partitions 2, and a coolant flow area 22 connected to the coolant inlet 13 and the coolant outlet 14 is provided between the two partitions 2 and the tank body 1, wherein two groups of cooling components are symmetrically arranged in the hydraulic oil storage area 21, wherein each group of cooling components is provided with a plurality of cooling pipes 3 arranged in parallel, and wherein both ends of each cooling pipe 3 are respectively connected to the coolant flow area 22. The two cooling components are connected to each other in the tank body 1 and connected to the moving area 22. A rotating shaft 4 rotatably arranged on the tank body 1 is provided between the two groups of cooling components. The axial direction of the rotating shaft 4 is perpendicular to the axial direction of the tank body 1. A plurality of paddles 41 for reducing the shaking of the hydraulic oil are evenly arranged on the rotating shaft 4 around its circumferential direction. The cooling pipes 3 can all move in a direction perpendicular to the axis of the tank body 1. The rotating shaft 4 is also provided with a driving component 5 that can synchronously drive the cooling pipes 3 to reciprocate in the hydraulic oil during its rotation. When the power generated by the shaking of the hydraulic oil in the hydraulic oil storage area 21 acts on the paddles 41, the rotating shaft 4 is in a rotating state, and the cooling pipes 3 are synchronously in an active state.

[0031] When the hydraulic oil enters the hydraulic oil storage area 21 of the tank body 1 through the hydraulic oil inlet 11, the hydraulic oil is distributed in the tank body 1 and is ready to be cooled. The coolant enters the coolant flow area 22 of the tank body 1 through the coolant inlet 13. The coolant flows through the cooling pipe 3 and exchanges heat with the hydraulic oil to take away the heat in the hydraulic oil. The coolant after heat exchange flows out of the tank body 1 through the coolant outlet 14. When the ship shakes, the hydraulic oil shakes in the tank body 1. The shaking of the hydraulic oil acts on the blades 41 on the rotating shaft 4, causing it to start rotating. The rotation of the blades 41 absorbs part of the kinetic energy of the hydraulic oil and converts it into rotational kinetic energy, thereby reducing the shaking amplitude of the hydraulic oil. As the ship rotates, the hydraulic oil shakes. The shaft 4 rotates, and the drive assembly 5 starts working, driving the cooling pipe 3 to reciprocate in the hydraulic oil. The reciprocating movement of the cooling pipe 3 increases the contact area between the hydraulic oil and the cooling pipe 3, and improves the heat exchange efficiency. The movement of the cooling pipe 3 in the hydraulic oil further promotes the uniform distribution of the hydraulic oil and reduces the situation where the local temperature is too high or too low. The rotation of the blade 41 not only absorbs the kinetic energy of the hydraulic oil, but also through the turbulence effect generated by its rotation, makes the hydraulic oil more evenly distributed in the tank body 1, which helps to stabilize the liquid level of the hydraulic oil and reduce the liquid level fluctuation caused by the shaking of the ship. After the hydraulic oil is cooled, it flows out of the tank body 1 through the hydraulic oil outlet 12 and returns to the hydraulic system for continued use.

[0032] See also Figure 2-Figure 8 As shown, the blade 41 is a plate-like structure, and an avoidance groove is opened on the blade 41 to avoid each cooling tube 3 during its rotation. The avoidance groove is opened vertically outward from the axis of the rotating shaft 4, and the opening of the avoidance groove is larger than the outer diameter of the cooling tube 3. The rotating shaft 4 is opened along its axial direction with a hollow channel 42 for the coolant to pass through. One end of the rotating shaft 4 is an inlet, and the other end is an outlet. One end of the inlet of the rotating shaft 4 is provided with a power component 43 that uses the coolant as a power source to drive the rotating shaft 4 to rotate.

[0033] The power assembly 43 includes a blade 431 fixedly connected to the rotating shaft 4, and a casing 432 in which the blade 431 is covered and fixedly connected to the tank body 1. The casing 432 is provided with a pressurizing port 4321 for injecting coolant facing the blade 431. When the coolant is injected into the casing 432 through the pressurizing port 4321, the coolant impacts the blade 431, causing the rotating shaft 4 to rotate. Then the coolant enters the hollow channel 42 and is discharged from the outlet. The rotation of the blade 41 is driven by the shaking of the hydraulic oil as a power source, so that the rotation of the blade 41 is more stable and a stable shaking reduction effect is maintained. The avoidance groove on the blade 41 ensures that it will not collide with the cooling pipe 3 during the rotation process. While having a good anti-sway effect on the shaking hydraulic oil, it also ensures the stability of the reciprocating activity of the cooling pipe 3, ensuring that the cooling pipe 3 can be fully in contact with the hydraulic oil to achieve a good cooling effect.

[0034] See also Figure 2-Figure 8 As shown, the cooling pipe 3 is a pipeline structure with an arc-shaped middle part and straight ends. Both ends of the cooling pipe 3 are provided with a guide pipe 31 extending outward along the axial direction perpendicular to the tank body 1. A drainage pipe 32 is connected between each guide pipe 31 and the corresponding coolant flow area 22. The drainage pipe 32 is fixedly connected to the tank body 1. The guide pipe 31 can move in the drainage pipe 32. A telescopic rubber sleeve 33 is fixedly provided between the guide pipe 31 and the drainage pipe 32 to maintain a sealed state. A plurality of branch pipes 34 extending along a direction perpendicular to the pipeline are also provided on the straight section of each cooling pipe 3, and each branch pipe 34 is in a connected state with the cooling pipe 3.

[0035] The coolant enters the guide pipe 31 through the guide pipe 32 and then enters the cooling pipe 3. The coolant flows in the cooling pipe 3, exchanges heat with the hydraulic oil, and takes away the heat in the hydraulic oil. The branch pipe 34 on the cooling pipe 3 further increases the contact area between the coolant and the hydraulic oil, thereby improving the cooling effect. The coolant after heat exchange flows out of the tank body 1 through the guide pipe 31 and the guide pipe 32 at the other end. When the rotating shaft 4 drives the cooling pipe 3 to reciprocate in the hydraulic oil through the driving assembly 5, the guide pipe 31 moves in the guide pipe 32, which not only plays a guiding effect, but also guides the coolant into the cooling pipe 3, and the telescopic rubber sleeve 33 ensures that the coolant will not leak during the flow process.

[0036] See also Figure 2-Figure 8 As shown, the driving assembly 5 includes a transmission member 51 arranged on the rotating shaft 4 and located between the arc sections of the cooling tubes 3, and a reset connector 52 arranged on each partition 2 and connected to the guide tubes 31 of each group of cooling tubes 3. When the rotating shaft 4 rotates to cause the transmission member 51 to drive the cooling tubes 3 to move outward synchronously, the reset connector 52 is in a state of following the movement of the cooling tubes 3, and after the rotating shaft 4 rotates one circle, the reset connector 52 drives the cooling tubes 3 to be in a state of synchronous inward reset, so that the cooling tubes 3 are in a reciprocating state with the cooperation of the transmission member 51 and the reset connector 52.

[0037] When the rotating shaft 4 starts to rotate, the transmission member 51 located between the arc sections of the two groups of cooling tubes 3 moves accordingly, driving the two groups of cooling tubes 3 to move outward synchronously. At this time, the reset connector 52 connected to the guide tube 31 of each group of cooling tubes 3 also moves with the movement of the cooling tubes 3. After the rotating shaft 4 completes one rotation, the reset connector 52 plays its role, prompting each group of cooling tubes 3 to move back inward and return to the initial position. In the process of the transmission member 51 pushing the cooling tubes 3 to move outward and the reset connector 52 pulling back the cooling tubes 3, the cooling tubes 3 achieve reciprocating movement. The reciprocating movement of the cooling tubes 3 increases the contact time and contact area between the coolant and the hydraulic oil, thereby improving the heat exchange efficiency.

[0038] See also Figure 4-Figure 9 As shown, the transmission member 51 has a pressure-applying portion 511 that is symmetrically and fixedly arranged on the rotating shaft 4, and a pressure-receiving portion 512 that is fixedly arranged on each arc-shaped section of the cooling tube 3. When the rotating shaft 4 rotates to cause the two pressure-applying portions 511 to pass through the pressure-receiving portions 512 of the cooling tube 3 respectively, the cooling tubes 3 are in a state of gradually moving outward.

[0039] When the rotating shaft 4 rotates, the pressure-applying part 511 fixed thereon rotates accordingly, and the pressure-applying part 511 gradually approaches and contacts the pressure-receiving part 512 on the arc-shaped section of the cooling tube 3. During the contact between the pressure-applying part 511 and the pressure-receiving part 512, the pressure-applying part 511 applies pressure to the pressure-receiving part 512, pushing the cooling tube 3 to move outward. As the rotating shaft 4 continues to rotate, the pressure-applying part 511 completely passes through the pressure-receiving part 512, and the cooling tube 3 reaches its maximum outward position. During this process, the cooling tube 3 is in a state of gradually moving outward. Through the mechanical cooperation between the pressure-applying part 511 and the pressure-receiving part 512, the cooling tube 3 is moved outward smoothly and gradually, reducing impact and vibration. The gradual outward movement of the cooling tube 3 changes the contact position between the cooling tube 3 and the hydraulic oil, increases the range of action, and makes the cooling process more uniform.

[0040] See also Figure 4-Figure 9 As shown, the pressure-applying portion 511 is specifically a block-shaped structure and extends along the axial direction of the rotating shaft 4. When the rotating shaft 4 rotates, the pressure-applying portion 511 is in a rotational state that can synchronously act on each cooling tube 3, so that each cooling tube 3 can be synchronously pushed and fully contacted with the hydraulic oil.

[0041] When the rotating shaft 4 rotates, the pressure-applying portion 511 gradually acts on the pressure-receiving portion 512 of each cooling tube 3. During the contact between the pressure-applying portion 511 and the pressure-receiving portion 512, the pressure-applying portion 511 applies pressure to the pressure-receiving portion 512, pushing the cooling tube 3 to move outward. Since the pressure-applying portion 511 extends along the axial direction of the rotating shaft 4, it is ensured that during the entire rotation process, the pressure-applying portion 511 can synchronously act on each cooling tube 3, so that each cooling tube 3 can be pushed and fully contact the hydraulic oil, achieving a smooth and consistent pushing effect.

[0042] See also Figure 4-Figure 9 As shown, the pressure-bearing portion 512 is specifically an arc-shaped strip structure, the inner diameter of the pressure-bearing portion 512 is smaller than the inner diameter of the arc-shaped section of the cooling tube 3, the distance between the end of the pressure-applying portion 511 and the axis of the rotating shaft 4 is greater than the inner diameter of the pressure-bearing portion 512, and when the rotating shaft 4 rotates, the pressure-applying portion 511 passes through the pressure-bearing portion 512, so that the pressure-bearing portion 512 is in an active state of being pushed outward.

[0043] When the rotating shaft 4 starts to rotate, the end of the pressure-applying portion 511 gradually approaches and contacts the pressure-receiving portion 512 having an arc-shaped strip structure. Since the distance between the end of the pressure-applying portion 511 and the axis of the rotating shaft 4 is greater than the inner diameter of the pressure-receiving portion 512, the pressure-applying portion 511 can effectively contact the pressure-receiving portion 512 and apply outward pressure thereto. As the rotating shaft 4 continues to rotate, the pressure-applying portion 511 passes through the pressure-receiving portion 512 and continues to push the pressure-receiving portion 512, so that the arc-shaped section of the cooling pipe 3 is pushed outward. During this process, the pressure-receiving portion 512 is in an active state of being pushed outward. Through the continuous pushing of the pressure-applying portion 511 on the pressure-receiving portion 512, the cooling pipe 3 can fully contact the hydraulic oil.

[0044] See also Figure 4-Figure 9 As shown, both ends of the pressure receiving portion 512 have inclined guiding surfaces 5121 for the pressure applying portion 511 to rotate along the arc surface of the pressure receiving portion 512 .

[0045] When the rotating shaft 4 starts to rotate, the pressure-applying part 511 gradually approaches the pressure-receiving part 512. Since the two ends of the pressure-receiving part 512 have inclined guide surfaces 5121, the pressure-applying part 511 can smoothly contact and rotate along the curved surface of the pressure-receiving part 512 along these guide surfaces 5121. The inclined guide surfaces 5121 make the pressure-applying part 511 smoother when contacting the pressure-receiving part 512, reducing friction and impact. As the rotating shaft 4 continues to rotate, the pressure-applying part 511 pushes the pressure-receiving part 512 along the guide surfaces 5121 of the pressure-receiving part 512, causing the cooling tube 3 to gradually move outward.

[0046] See also Figure 4-Figure 9 As shown, the end portion of the pressure-applying portion 511 extending outward is rotatably provided with a roller 5111 for reducing the friction force generated by contact with the pressure-receiving portion 512 .

[0047] When the rotating shaft 4 starts to rotate, the end of the pressure-applying part 511 gradually approaches the pressure-receiving part 512. Since a roller 5111 is provided at the end of the pressure-applying part 511, the roller 5111 can roll instead of slide when in contact with the pressure-receiving part 512. As the rotating shaft 4 continues to rotate, the roller 5111 of the pressure-applying part 511 rolls along the curved surface of the pressure-receiving part 512, reducing the friction generated by direct contact. The rolling method enables the pressure-applying part 511 to smoothly push the pressure-receiving part 512, so that the cooling tube 3 gradually moves outward.

[0048] See also Figure 4-Figure 8 and Fig.10As shown, the reset connector 52 has a movable shaft 521 arranged perpendicular to the partition 2, and a connecting rod 522 symmetrically and hinged on the movable shaft 521, the partition 2 has a sleeve 5211 for the movable shaft 521 to slide and insert therein, a reset spring 5212 is fixedly connected between the movable shaft 521 and the sleeve 5211, the free end of each connecting rod 522 is hinged to a connecting portion 5221, the connecting portion 5221 fixes multiple cooling tubes 3 on the same side, when the cooling tube 3 above the rotating shaft 4 is in the process of descending by its own gravity, under the transmission of the connecting rod 522, the cooling tube 3 below the rotating shaft 4 is in a state of resetting upward together.

[0049] When the cooling pipe 3 above the rotating shaft 4 descends by its own gravity, the connecting rod 522 connected to the cooling pipe 3 will move downward accordingly. Since the connecting rod 522 is symmetrically hinged on the movable shaft 521, and the free end of each connecting rod 522 is hinged to a connecting portion 5221 respectively, when the connecting rod 522 on one side moves downward, the connecting rod 522 on the other side will be driven to move upward. During this process, the movable shaft 521 slides in the shaft sleeve 5211, and the return spring 5212 shortens. As the upper cooling pipe 3 continues to descend, the lower cooling pipe 3 is pushed upward through the transmission of the connecting rod 522 for reset. During this process, the return spring 5212 always generates a pulling force on the movable shaft 521 to provide a restoring force to help the movable shaft 521 return to its initial position (at this position, the return spring 5212 still generates a pulling force on the movable shaft 521, and the distance between the cooling pipes 3 on the upper and lower sides is the smallest), thereby realizing the linkage reset between the upper and lower cooling pipes 3 and ensuring the synchronization of the reciprocating motion.

[0050] The present invention effectively absorbs the kinetic energy of the hydraulic oil through the rotation of the blades 41, reduces the shaking amplitude of the hydraulic oil, and the turbulence effect generated by the blades 41 further disperses the kinetic energy of the hydraulic oil, making it more evenly distributed and reducing the formation of local high kinetic energy areas. As the rotating shaft 4 rotates, the driving component 5 is started, driving the cooling pipe 3 to move back and forth, increasing the contact area between the hydraulic oil and the cooling pipe 3, improving the heat exchange efficiency, and allowing the coolant to more effectively take away the heat in the hydraulic oil, thereby improving the overall cooling effect.

[0051] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A hydraulic oil cooler, comprising a tank body (1), wherein the tank body (1) is provided with a hydraulic oil inlet (11) and a hydraulic oil outlet (12), and a coolant inlet (13) and a coolant outlet (14); It is characterized in that Two partitions (2) are symmetrically and fixedly arranged in the tank body (1); between the two partitions (2) is a hydraulic oil storage area (21) connected to a hydraulic oil inlet (11) and a hydraulic oil outlet (12); between the two partitions (2) and the tank body (1) is a coolant flow area (22) connected to a coolant inlet (13) and a coolant outlet (14); two groups of cooling components are symmetrically arranged in the hydraulic oil storage area (21); each group of cooling components is provided with a plurality of cooling pipes (3) arranged in parallel; and both ends of each cooling pipe (3) are respectively connected to the coolant flow area (22); A rotating shaft (4) rotatably arranged on the tank body (1) is provided between the two groups of cooling components. The axial direction of the rotating shaft (4) is perpendicular to the axial direction of the tank body (1). The rotating shaft (4) is evenly provided with a plurality of paddles (41) around its circumference for reducing the shaking of the hydraulic oil. The cooling pipes (3) are all able to move in a direction perpendicular to the axis of the tank body (1). The rotating shaft (4) is also provided with a driving component (5) capable of synchronously driving the cooling pipes (3) to reciprocate in the hydraulic oil during its rotation. When the power generated by the shaking of the hydraulic oil in the hydraulic oil storage area (21) acts on the paddles (41), the rotating shaft (4) is in a rotating state, synchronously making the cooling pipes (3) all in an active state.

2. A hydraulic oil cooler according to claim 1, characterized in that: The blade (41) is a plate-like structure. The blade (41) is provided with an avoidance groove for avoiding each cooling tube (3) during its rotation. The avoidance groove is opened vertically outward from the axis of the rotating shaft (4). The opening of the avoidance groove is greater than the outer diameter of the cooling tube (3). The rotating shaft (4) is provided with a hollow channel (42) for the coolant to pass through along its axial direction. One end of the rotating shaft (4) is an inlet and the other end is an outlet. One end of the inlet of the rotating shaft (4) is provided with a power component (43) that uses the coolant as a power source to drive the rotating shaft (4) to rotate.

3. A hydraulic oil cooler according to claim 2, characterized in that: The cooling pipe (3) is a pipe structure with an arc-shaped middle portion and straight ends. Both ends of the cooling pipe (3) are provided with a guide pipe (31) extending outward in a direction perpendicular to the axis of the tank body (1). A drainage pipe (32) is provided between each guide pipe (31) and the corresponding coolant flow area (22). The drainage pipe (32) is fixedly connected to the tank body (1). The guide pipe (31) can move in the drainage pipe (32). A telescopic rubber sleeve (33) is fixedly provided between the guide pipe (31) and the drainage pipe (32) for maintaining a sealed state. A plurality of branch pipes (34) extending in a direction perpendicular to the pipe are also provided on the straight section of each cooling pipe (3). Each branch pipe (34) is in a state of communication with the cooling pipe (3).

4. A hydraulic oil cooler according to claim 3, characterized in that: The driving assembly (5) comprises a transmission member (51) arranged on the rotating shaft (4) and located between the arc sections of the cooling pipes (3), and a reset connection member (52) arranged on each partition (2) and connected to the guide pipes (31) of each group of cooling pipes (3). When the rotating shaft (4) rotates so that the transmission member (51) drives the cooling pipes (3) to move outward synchronously, the reset connection member (52) is in a state of following the movement of the cooling pipes (3). After the rotating shaft (4) rotates one circle, the reset connection member (52) drives the cooling pipes (3) to be in a state of synchronously resetting inward, so that the cooling pipes (3) are in a state of reciprocating movement under the cooperation of the transmission member (51) and the reset connection member (52).

5. The hydraulic oil cooler according to claim 4, characterized in that: The transmission member (51) comprises a pressure-applying portion (511) symmetrically and fixedly arranged on the rotating shaft (4), and a pressure-receiving portion (512) fixedly arranged on the arc-shaped section of each cooling tube (3). When the rotating shaft (4) rotates so that the two pressure-applying portions (511) respectively pass through the pressure-receiving portions (512) of the cooling tubes (3), the cooling tubes (3) are in a state of gradually moving outwards.

6. A hydraulic oil cooler according to claim 5, characterized in that: The pressure-applying portion (511) is specifically a block-shaped structure and extends along the axial direction of the rotating shaft (4). When the rotating shaft (4) rotates, the pressure-applying portion (511) is in a rotation state capable of synchronously acting on each cooling tube (3), so that each cooling tube (3) can be synchronously pushed and fully contacted with the hydraulic oil.

7. The hydraulic oil cooler according to claim 5, characterized in that: The pressure-bearing portion (512) is specifically an arc-shaped strip structure, the inner diameter of the pressure-bearing portion (512) is smaller than the inner diameter of the arc-shaped section of the cooling tube (3), the distance between the end of the pressure-applying portion (511) and the axis of the rotating shaft (4) is greater than the inner diameter of the pressure-bearing portion (512), and when the rotating shaft (4) rotates, the pressure-applying portion (511) passes through the pressure-bearing portion (512), so that the pressure-bearing portion (512) is in an active state of being pushed outward.

8. The hydraulic oil cooler according to claim 7, characterized in that: Both ends of the pressure receiving portion (512) have inclined guide surfaces (5121) for the pressure applying portion (511) to rotate along the arc surface of the pressure receiving portion (512).

9. The hydraulic oil cooler according to claim 8, characterized in that: The end portion of the pressure-applying portion (511) extending outward is rotatably provided with a roller (5111) for reducing the friction force generated by contact with the pressure-receiving portion (512).

10. The hydraulic oil cooler according to claim 4, characterized in that: The reset connector (52) comprises a movable shaft (521) arranged perpendicular to the partition (2), and a connecting rod (522) symmetrically hinged on the movable shaft (521); the partition (2) comprises a shaft sleeve (5211) for the movable shaft (521) to be slidably inserted therein; a reset spring (5212) is fixedly connected between the movable shaft (521) and the shaft sleeve (5211); the free end of each connecting rod (522) is hinged to a connecting portion (5221) respectively; the connecting portion (5221) fixedly connects a plurality of cooling pipes (3) on the same side; when the cooling pipe (3) above the rotating shaft (4) descends by its own gravity, the cooling pipe (3) below the rotating shaft (4) is in a state of being reset upwards together under the transmission of the connecting rod (522).

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