阅读说明：本技术 带有散热鳍片的液压油管 (Hydraulic oil pipe with radiating fins ) 是由 孙艳 刘伟善 刘尔方 许海烽 徐冰 于 2021-10-25 设计创作，主要内容包括：本发明涉及一种带有散热鳍片的液压油管,包括鳍片,所述鳍片连接于油管外壁,沿油管轴向呈螺旋状延伸,鳍片上开有通孔,所述通孔沿鳍片表面均匀分布,且相邻鳍片上的通孔对齐,形成多个平行于油管轴向的风道；还包括散热管,所述散热管连接于所述鳍片的边缘面,散热管的截面呈内凹弧形,从而在鳍片一侧形成一条非封闭式的内凹流道,散热管能够发生弹性变形,使流入所述内凹流道内的空气压缩并沿流道流动。本发明增强了油管表面的被动风冷散热效果,控制液压油温处于合理范围。(The invention relates to a hydraulic oil pipe with radiating fins, which comprises fins, wherein the fins are connected to the outer wall of the oil pipe and extend spirally along the axial direction of the oil pipe, through holes are formed in the fins, the through holes are uniformly distributed along the surfaces of the fins, and the through holes in adjacent fins are aligned to form a plurality of air channels parallel to the axial direction of the oil pipe; still include the cooling tube, the cooling tube connect in the edge face of fin, the cross-section of cooling tube is the indent arc to form a non-closed indent runner on one side of the fin, the cooling tube can take place elastic deformation, makes the air pressure that flows into in the indent runner and flow along the runner. The invention enhances the passive air cooling heat dissipation effect of the surface of the oil pipe and controls the hydraulic oil temperature to be in a reasonable range.)

1. The hydraulic oil pipe with the radiating fins comprises fins (2), wherein the fins (2) are connected to the outer wall of the oil pipe (1) and extend spirally along the axial direction of the oil pipe (1), and is characterized in that through holes (3) are formed in the fins (2), the through holes (3) are uniformly distributed along the surfaces of the fins (2), and the through holes (3) in adjacent fins (2) are aligned to form a plurality of air channels parallel to the axial direction of the oil pipe (1);

still include cooling tube (4), cooling tube (4) connect in the edge face of fin (2), the cross-section of cooling tube (4) is the indent arc to form a non-enclosed indent runner (41) in fin (2) one side, cooling tube (4) can produce elastic deformation, make and flow into air compression in indent runner (41) flows along the runner.

2. The hydraulic oil pipe with radiating fins according to claim 1, wherein the fins (2) are made of rigid material, and the radiating pipe (4) is made of flexible material.

3. The hydraulic oil pipe with radiating fins according to claim 2, wherein the radiating pipe (4) is made of rubber material and can be vibrated and deformed along with the vibration of the oil pipe (1).

4. The hydraulic oil pipe with radiating fins according to claim 2, wherein the radiating pipe (4) is connected in series into a whole by a pull rod (5) parallel to the axial direction of the oil pipe (1), one end of the pull rod (5) is connected with a vibrator (7) fixedly arranged on the outer wall of the oil pipe (1), and the other end is flexibly connected with the outer wall of the oil pipe (1).

5. The hydraulic oil pipe with radiating fins according to claim 4, wherein the pull rod (5) is detachably connected with the pipe wall of the radiating pipe (4).

6. The hydraulic oil pipe with the radiating fins according to claim 4, characterized in that a fixed pulley (6) is arranged on the oil pipe (1) at a turning position, and the fixed pulley (6) is in rolling fit with the pull rod (5).

7. The hydraulic oil pipe with the heat radiating fins as claimed in claim 4, wherein the flexible connecting structure comprises a tension spring (8) and a connecting column (9), the connecting column (9) is fixedly connected to the outer wall of the oil pipe (1), one end of the tension spring (8) is connected with the pull rod (5), and the other end of the tension spring is connected with the connecting column (9).

8. The hydraulic oil pipe with the radiating fins as claimed in claim 4, wherein the pull rod (5) is made of a steel wire rope or a thin iron wire.

9. The hydraulic oil pipe with the radiating fins as claimed in claim 2, wherein the edge surface of the fins (2) is provided with a first clamping portion, and the edge surface of the radiating pipe (4) is provided with a second clamping portion matched with the first clamping portion.

10. The hydraulic oil pipe with the heat dissipation fins as claimed in claim 9, wherein the first clamping portion is a groove (21), the second clamping portion is a boss (42), and the groove (21) and the boss (42) are bonded at the clamping position by a heat conduction glue.

Technical Field

The invention relates to the technical field of hydraulic oil pipe heat dissipation, in particular to a hydraulic oil pipe with heat dissipation fins.

Background

When the hydraulic system works, the temperature of hydraulic oil is increased, the viscosity of the hydraulic oil is reduced, the compression ratio of the hydraulic system is reduced, the output pressure is reduced, the power of a front-end driving part is increased, and the overload risk is caused; in addition, the oxidation of hydraulic oil is intensified by high temperature, and the oil product is invalid.

In the prior art, the heat dissipation measures for the hydraulic oil pipe mainly include: the structure of the oil pipe is improved, and the purpose of heat dissipation is achieved by increasing the flow area of hydraulic oil; and secondly, a cooling fan is added to cool the oil pipe by air cooling. The oil line structure needs to be changed, and the oil pressure stability control is easily influenced; the fan equipment is limited by an installation space, the heat dissipation effect is limited, and the noise and the energy consumption are high during operation.

Disclosure of Invention

The invention provides a hydraulic oil pipe with radiating fins, aiming at enhancing the air cooling radiating effect on the surface of the oil pipe and controlling the hydraulic oil temperature to be in a reasonable range.

The technical scheme adopted by the invention is as follows:

a hydraulic oil pipe with radiating fins comprises fins, wherein the fins are connected to the outer wall of the oil pipe and extend spirally along the axial direction of the oil pipe, through holes are formed in the fins and are uniformly distributed along the surfaces of the fins, and the through holes in adjacent fins are aligned to form a plurality of air channels parallel to the axial direction of the oil pipe; the radiating pipe is connected to the edge surfaces of the fins, the cross section of the radiating pipe is in an inward concave arc shape, so that a non-closed inward concave flow channel is formed on one side of the fins, and the radiating pipe can elastically deform to enable air flowing into the inward concave flow channel to compress and flow along the flow channel.

The further technical scheme is as follows:

the fins are made of rigid materials, and the radiating pipe is made of flexible materials.

The radiating pipe is made of rubber materials and can vibrate and deform along with vibration of the oil pipe.

The radiating pipe is connected in series into a whole through a pull rod parallel to the axial direction of the oil pipe, one end of the pull rod is connected with a vibrator fixedly arranged on the outer wall of the oil pipe, and the other end of the pull rod is flexibly connected with the outer wall of the oil pipe.

The pull rod with the pipe wall detachable connection of cooling tube.

And a fixed pulley is arranged at the turning position on the oil pipe and is in rolling fit with the pull rod.

The flexible connection structure comprises a tension spring and a connection column, the connection column is fixedly connected to the outer wall of the oil pipe, one end of the tension spring is connected with the tension rod, and the other end of the tension spring is connected with the connection column.

The pull rod is made of a steel wire rope or a thin iron wire.

The edge face of the fin is provided with a first clamping portion, and the edge face of the radiating tube is provided with a second clamping portion matched with the first clamping portion.

The first clamping portion is a groove, the second clamping portion is a boss, and the groove is bonded with the boss through heat-conducting glue.

The invention has the following beneficial effects:

the fins of the invention increase the surface area of the oil pipe on one hand, and are beneficial to improving the heat dissipation efficiency of liquid in the pipe; on the other hand, the flow guide device has a certain flow guide effect, so that airflow flowing through the outside of the oil pipe flows along the spiral surface, and the flow path is prolonged; the through holes on the fins are aligned along the axial direction of the oil pipe, so that a passage which can enable airflow to continuously flow along the through holes is formed, the flow path of the airflow along the surface of the oil pipe is increased, and the natural air cooling effect is further improved.

The radiating pipe provided by the invention is made of flexible materials, and the flexible materials are easy to generate elastic deformation when the oil pipe mechanically vibrates, so that air in the concave flow channel is compressed, a certain wind speed is generated, airflow moves along a spiral path of the radiating pipe, and heat generated by the oil pipe is further taken away through the radiating pipe, so that a passive air-cooling radiating effect is generated, and the radiating efficiency of the oil pipe is improved.

The radiating pipe and the fins of the invention adopt a clamping structure, thus increasing the contact area and improving the heat conducting property.

The pull rod transmits the vibration kinetic energy of the vibrator to all the radiating pipe sections connected with the vibrator so as to enhance the vibration deformation of the radiating pipes, thereby enhancing the air compression and flow in the concave flow channel and well meeting the radiating requirements under the working conditions of less external wind and weaker mechanical vibration of the oil pipe.

The fixed pulley transmits the vibration force of the pull rod to the radiating pipe on the turned oil pipe, so that the turning of the acting force is realized, and the fixed pulley is suitable for the layout of various oil pipes; the pull rod is matched with the rolling surface of the fixed pulley at the turning position, so that the axial stress loss or the breakage of the pull rod in the vibration process can be prevented.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is an enlarged view of a portion D in fig. 3.

Fig. 5 is another view of fig. 2.

Fig. 6 is a schematic structural diagram of embodiment 3 of the present invention.

Fig. 7 is an enlarged view of a portion B in fig. 6.

Fig. 8 is an enlarged view of the portion C in fig. 6.

In the figure: 1. an oil pipe; 2. a fin; 21. a groove; 3. a through hole; 4. a radiating pipe; 41. an inward concave flow channel; 42. a boss; 5. a pull rod; 6. a fixed pulley; 7. a vibrator; 8. a tension spring; 9. connecting columns.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

Example 1

Referring to fig. 1, the hydraulic oil pipe with heat dissipation fins in this embodiment 1 includes fins 2, the fins 2 are connected to an outer wall of the oil pipe 1 and extend spirally along an axial direction of the oil pipe 1, through holes 3 are formed in the fins 2, the through holes 3 are uniformly distributed along the fins 2, and the through holes 3 in two adjacent sections of the fins 2 are aligned to form an air duct parallel to the axial direction of the oil pipe 1.

According to the embodiment, the oil pipe is used for conveying hydraulic oil, the oil temperature rises during long-term work, the surface area of the oil pipe 1 is increased through the fins 2, the heat dissipation efficiency of liquid in the pipe is improved, and when airflow flows through the outside of the oil pipe 1, the fins 2 play a certain flow guiding role, so that the airflow flows along the spiral surface, the flowing path is prolonged, and the natural air cooling effect can be further improved.

The through holes 3 are uniformly distributed along the surface of the whole fin 2, and the positions in the axial direction correspond to each other one by one, so that a plurality of air ducts parallel to the axial direction are formed. When airflow passes through the surface of the oil pipe 1, the airflow flows along the fins 2 and also flows along the axial direction through the air channel formed by the through holes 3, so that the flow guiding effect is achieved, and the flow path of the airflow along the surface of the oil pipe 1 is increased.

Specifically, the fin 2 may be made of the same material as the oil pipe 1, such as steel or aluminum.

Specifically, the fin 2 is welded to the oil pipe 1.

Example 2

Compared with embodiment 1, the hydraulic oil pipe with the heat dissipation fins in embodiment 2 has the advantages that the passive heat dissipation element is added on the basis of the structure of the fins 2, and the heat dissipation effect is further improved. The specific scheme is as follows:

referring to fig. 2 to 5, the passive heat dissipation element is a heat dissipation tube 4, the heat dissipation tube 4 is connected to the edge surface of the fin 2, and the cross section of the heat dissipation tube 4 is in a concave arc shape, so as to form a non-closed concave flow channel 41 outside the fin 2;

the radiating pipe 4 can be vibrated (vibrated) and deformed, so that the air flowing into the concave flow passage 41 is compressed and flows along the flow passage.

Preferably, the fin 2 is made of a rigid material, and the radiating pipe 4 is made of a flexible material.

The purpose that cooling tube 4 adopted flexible material makes its easy elastic deformation that produces when oil pipe mechanical oscillation, takes place deformation through shake or vibration for the air in indent runner 41 is compressed, thereby produces certain wind speed, and the air current further takes away the heat that oil pipe 1 produced through the cooling tube along the spiral path motion of cooling tube 4, thereby produces passive air-cooled radiating effect, improves oil pipe 1's radiating efficiency.

The flow path of the air flow in the concave flow channel 41 can be seen with reference to the arrows in fig. 3.

Preferably, the radiating pipe 4 is made of rubber materials, plastics or silica gel and the like with good heat conducting performance, so that the radiating pipe can vibrate and deform along with the vibration of the oil pipe 1.

Specifically, the heat dissipation tube 4 and the fins 2 can be connected by clamping, bonding or hot melting riveting process.

Preferably, the edge face of the fin 2 is provided with a first clamping portion, and the edge face of the radiating tube 4 is provided with a second clamping portion matched with the first clamping portion.

Without loss of generality, referring to fig. 5, the first clamping portion is a groove 21, and the second clamping portion is a boss 42. The groove 21 is located in the center of the edge face of the top of the fin 2 and extends along the length direction, the boss 42 is located in the center of the edge face of one side of the radiating pipe 4 and extends along the length direction, and the connecting structure of the groove 21 and the boss 42 increases the contact area of the fin 2 and the radiating pipe 4, thereby being beneficial to improving the heat exchange effect.

Preferably, the groove 21 and the boss 42 are bonded at the clamping position by a heat-conducting glue.

Specifically, the heat conducting performance can be met by directly connecting the fins 2 and the radiating pipes 4 by adopting a hot melting riveting point process.

Specifically, the fin 2 may be made of the same material as the oil pipe 1, such as steel or aluminum.

Specifically, the fin 2 is welded to the oil pipe 1.

Specifically, the pitch and radius of the fin 2 can be selected according to actual needs.

Specifically, the through holes 3 on the fins 2 are round holes, square holes or elliptical holes, and are selected according to actual needs.

In this embodiment 2, the radiating tube 4 is further disposed on the outer edge of the fin 2, which is particularly suitable for generating a passive radiating effect when there is no wind outside, so as to improve the radiating efficiency.

Example 3

In the hydraulic oil pipe with heat dissipation fins of this embodiment 3, on the basis of embodiment 2, a driving mechanism is added, and under the working condition that the vibration of the oil pipe 1 is weak, the vibration deformation of the heat dissipation pipe 4 can be realized.

Referring to fig. 6 to 8, the driving mechanism includes a rod 5 and a vibrator 7. The pull rod 5 sequentially penetrates through the walls of the radiating tubes 4 along the direction parallel to the axial direction of the oil pipe 1 to connect the radiating tubes in series, the vibrator 7 is fixedly arranged at one end of the outer wall of the oil pipe 1, one end of the pull rod 5 is connected with the vibrator 7, and the other end of the pull rod is flexibly connected with the other end of the outer wall of the oil pipe 1.

The function of the tie bar 5 is to transfer the vibration kinetic energy of the vibrator 7 to all the radiating pipe sections connected thereto to enhance the vibration deformation of the radiating pipe 4, thereby enhancing the air compression and flow in the concave flow passage 41.

The pull rod 5 is detachably connected with the pipe wall of the radiating pipe 4.

Concretely, accessible threaded connection between the pipe wall of every section cooling tube 4 and pull rod 5, perhaps through magnetism type connector, can drive all cooling tube sections and vibrate when guaranteeing the stay cord vibration.

Preferably, the oil pipe 1 is provided with a fixed pulley 6 at a turning position, and as shown in fig. 6, the fixed pulley 6 is in rolling fit with the pull rod 5.

In practical cases, the oil pipe 1 usually has a turning structure rather than a straight shape, depending on the use and installation conditions. The fixed pulley 6 is arranged to realize the steering of the acting force, so that the vibration force of the pull rod 5 is transmitted to the radiating pipe 4 of the oil pipe 1 after the turning. Meanwhile, the pull rod 5 is in rolling fit with the roller surface of the fixed pulley 6 at the turning position, so that the axial stress loss or breakage of the pull rod 5 in the vibration process can be prevented.

Specifically, the fixed pulley 6 is installed on a rotating shaft, the rotating shaft is fixedly connected with the outer wall of the oil pipe 1, and the roller surface of the fixed pulley 6 is an inwards concave cambered surface and can accommodate the pull rod 5.

Specifically, the flexible connection structure comprises a tension spring 8 and a connection column 9, the connection column 9 is fixedly connected with the outer wall of the oil pipe 1, one end of the tension spring 8 is connected with the pull rod 5,

specifically, the connecting column 9 is welded with the outer wall of the oil pipe 1.

Preferably, the pull rod 5 can be made of a steel wire rope or a thin iron wire.

Specifically, the vibrator 7 may be a pneumatic type micro vibrator, which is commercially available.

In the above embodiments, the pitch and radius of the fins, the shape and size of the through holes, and the pipe diameter of the heat dissipation pipe can be determined according to the size of the oil pipe and the heat dissipation requirement. The fins can be continuously arranged along the surface of the corresponding oil pipe and disconnected at a turning position or a valve and flange mounting position so as to give way to the mounting position. The specific installation structure, the working principle and other structures which are not described are all the prior art, and are not described in detail.

The foregoing is only a preferred embodiment of the present invention, it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.