Hydraulic cylinder with cooling function

Abstract

The utility model discloses a hydraulic cylinder with cooling function, including cooling assembly cladding and the hydraulic cylinder body of cladding in cooling assembly cladding, cooling assembly cladding is by two symmetrical setting's inner heat conduction half circle arc cover and is formed, the outside sleeve surface of inner heat conduction half circle arc cover is pressed and is equipped with arc liquid cooling board, the arc liquid cooling half is equipped with liquid cooling cavity, the end side mounting fixed of inner heat conduction half circle arc cover has end half ring, install the stop pin on the end half ring, the outer sleeve surface edge of inner heat conduction half circle arc cover fixed mounting has arc cover assembly along the strip, two the arc cover assembly along the strip of inner heat conduction half circle arc cover can detachable installation together. Advantageous effect lies in aiming at the cylinder body has the effect of quick heat dissipation cooling, and dismounting and installation are convenient, need not to reconstruct hydraulic cylinder and can be added to partial existing hydraulic cylinder body, and maintenance uses simple.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder devices, and in particular to a hydraulic cylinder with a cooling function. Background Technology

[0002] A hydraulic cylinder is basically composed of a cylinder barrel and cylinder head, a piston and piston rod, a sealing device, a buffer device, and an exhaust device. It achieves the reciprocating motion of the piston rod through the input and output of hydraulic oil. When used in outdoor environments exposed to direct sunlight or indoor high-temperature environments, cooling of the cylinder with liquid oxygen needs to be considered. For example, the patent with publication number CN207906189U describes a hydraulic cylinder structure with water cooling. Water cooling is a common type of liquid cooling. However, the cooling structure in the above patent requires modification of the front cover and cannot be directly applied to existing hydraulic cylinders. Secondly, the main heat of the hydraulic cylinder is in the main cylinder body, where the high-pressure hydraulic oil inside rubs against the piston. The front cover mainly dissipates heat from the piston rod, and its effect on the overall cooling of the cylinder body is limited. Utility Model Content

[0003] The purpose of this invention is to provide a hydraulic cylinder with a cooling function in order to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] A hydraulic cylinder with a cooling function includes a cooling assembly covering layer and a hydraulic cylinder body covered within the cooling assembly covering layer. The cooling assembly covering layer is composed of two symmetrically arranged inner heat-conducting semi-circular arc sleeves. An arc-shaped liquid cooling plate is pressed onto the outer sleeve surface of the inner heat-conducting semi-circular arc sleeve. A liquid cooling cavity is provided inside the arc-shaped liquid cooling plate. An end half-ring is installed and fixed on the end side of the inner heat-conducting semi-circular arc sleeve. A stop pin is installed on the end half-ring. An arc sleeve assembly strip is fixedly installed at the edge of the outer sleeve surface of the inner heat-conducting semi-circular arc sleeve. The arc sleeve assembly strips of the two inner heat-conducting semi-circular arc sleeves can be detachably installed together.

[0006] Furthermore, the liquid cooling cavity is equipped with several alternately distributed counter-current channel baffles and co-current channel baffles.

[0007] Furthermore, two liquid inlet and outlet fittings are installed on the arc-shaped liquid cooling plate.

[0008] Furthermore, the two arc-shaped liquid cooling plates are connected together in series via connecting hoses.

[0009] Furthermore, a heat-insulating protective layer is attached to the outer arc plate surface of the arc-shaped liquid cooling plate.

[0010] Furthermore, the arc sleeve assembly strip is provided with a plurality of assembly holes, and assembly bolts are inserted into the assembly holes.

[0011] Furthermore, the end half-ring is provided with a plurality of pin holes, one end of the stop pin is threaded into the pin hole, and the other end of the stop pin is provided with an internal hexagonal groove.

[0012] Furthermore, a front cover and a rear cover are fixedly installed at both ends of the hydraulic cylinder body, respectively. A piston rod is inserted into the front cover, and one end of the piston rod extends into the hydraulic cylinder body and is fitted with a hydraulic plug.

[0013] The beneficial effects are as follows: the hydraulic cylinder with cooling function described in this utility model has a rapid heat dissipation and cooling effect on the cylinder body, and is easy to disassemble and install. It can be added to some existing hydraulic cylinder bodies without modifying the hydraulic cylinder, and is simple to maintain and use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a hydraulic cylinder with cooling function according to the present invention;

[0015] Figure 2 This is a structural diagram of the cooling assembly and covering layer of a hydraulic cylinder with cooling function as described in this utility model;

[0016] Figure 3 This is a schematic diagram showing the unfolded liquid cooling cavity inside the arc-shaped liquid cooling plate of a hydraulic cylinder with cooling function as described in this utility model.

[0017] The annotations in the attached figures are explained as follows:

[0018] 1. Cooling assembly covering layer; 2. Front end cover; 3. Rear end cover; 4. Piston rod; 5. Inner heat-conducting semi-circular arc sleeve; 6. Arc sleeve assembly strip; 7. Arc-shaped liquid cooling plate; 8. Heat insulation protective layer; 9. End semi-ring; 10. Stop pin; 11. Liquid inlet / outlet end fittings; 12. Assembly bolt; 13. Connecting hose; 14. Pin hole; 15. Assembly hole; 16. Liquid cooling cavity; 17. Counterflow channel baffle; 18. Co-flow channel baffle. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] like Figures 1-3 As shown, a hydraulic cylinder with cooling function mainly consists of a cooling assembly covering layer 1 and a hydraulic cylinder body covered within the cooling assembly covering layer 1.

[0021] The hydraulic cylinder is typically a cylindrical cylinder structure, which is also the main movement area for hydraulic oil and piston. The internal part generates more heat than the piston rod on the outer side.

[0022] The cooling assembly covering layer 1 consists of two symmetrically arranged inner heat-conducting semi-circular arc sleeves 5. An arc-shaped liquid cooling plate 7 is pressed on the outer sleeve surface of the inner heat-conducting semi-circular arc sleeve 5. The arc-shaped liquid cooling plate 7 is provided in the liquid cooling cavity 16. The heat of the hydraulic cylinder is carried away by the continuously flowing refrigerant inside. The inner heat-conducting semi-circular arc sleeve 5 is made of lightweight aluminum alloy heat-conducting material, which has good thermal conductivity and is lightweight.

[0023] An end semi-ring 9 is fixedly installed on the end side of the inner heat-conducting semi-circular sleeve 5. A stop pin 10 is installed on the end semi-ring 9. The arc-shaped liquid cooling half 7 can be quickly removed by removing the stop pin 10, which is convenient for replacement and disassembly.

[0024] An arc sleeve assembly strip 6 is fixedly installed at the edge of the outer surface of the inner heat-conducting semi-circular arc sleeve 5. The arc sleeve assembly strips 6 of the two inner heat-conducting semi-circular arc sleeves 5 can be detached and installed together to realize the assembly and disassembly of the two inner heat-conducting semi-circular arc sleeves 5.

[0025] like Figures 1-3 As shown, this utility model also discloses the following more optimized specific structures:

[0026] The liquid cooling cavity 16 is equipped with several alternating counter-flow channel baffles 17 and co-flow channel baffles 18, which makes the refrigerant flow along the channels in the liquid cooling cavity 16, resulting in more uniform cooling.

[0027] Two liquid inlet and outlet fittings 11 are installed on the arc-shaped liquid cooling plate 7, which are used for liquid inlet and liquid outlet respectively.

[0028] Two arc-shaped liquid cooling plates 7 are connected together in series by a connecting hose 13, which makes the internal flow channels open. The connecting hose 13 can be detachably installed on the inlet and outlet liquid end fittings 11.

[0029] A heat insulation protective layer 8 is attached to the outer arc plate surface of the arc-shaped liquid cooling plate 7.

[0030] The arc-shaped assembly strip 6 has several assembly holes 15, and assembly bolts 12 are inserted into the assembly holes 15 for fixing the two arc-shaped assembly strips 6.

[0031] The end half-ring 9 is provided with several pin holes 14. One end of the stop pin 10 is threaded into the pin hole 14, and the other end of the stop pin 10 is provided with an internal hexagonal groove to facilitate tool rotation.

[0032] The hydraulic cylinder body is fixedly installed with a front cover 2 and a rear cover 3 at both ends. A piston rod 4 is inserted into the front cover 2. One end of the piston rod 4 extends into the hydraulic cylinder body and is fitted with a hydraulic plug. The end cover is provided with inlet and outlet oil pipe mounting parts. This is a general structure of hydraulic cylinders and will not be described further.

[0033] like Figures 1-3The hydraulic cylinder shown has a cooling function, which is mainly achieved by external circulating refrigerant. The refrigerant enters the liquid cooling chamber 16 through the inlet and outlet liquid end piece 11, and carries away the heat transferred by the hydraulic cylinder body through the inner heat-conducting semi-circular sleeve 5. This includes the heat of hydraulic movement and the heat of piston movement.

[0034] By removing the retaining pin 10, the arc-shaped liquid cooling plate 7 can be quickly disassembled and installed, making maintenance and replacement more convenient. In addition, the outer layer is equipped with a heat insulation protective layer 8 to avoid absorbing external heat, and the cooling channel improves the cooling efficiency.

[0035] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A hydraulic cylinder with a cooling function, characterized in that: The device includes a cooling assembly covering layer and a hydraulic cylinder body covered within the cooling assembly covering layer. The cooling assembly covering layer consists of two symmetrically arranged inner heat-conducting semi-circular arc sleeves. An arc-shaped liquid cooling plate is pressed onto the outer sleeve surface of the inner heat-conducting semi-circular arc sleeve. A liquid cooling cavity is provided inside the arc-shaped liquid cooling plate. An end half-ring is installed and fixed on the end side of the inner heat-conducting semi-circular arc sleeve. A stop pin is installed on the end half-ring. An arc sleeve assembly edge strip is fixedly installed at the edge of the outer sleeve surface of the inner heat-conducting semi-circular arc sleeve. The arc sleeve assembly edges of the two inner heat-conducting semi-circular arc sleeves can be detachably installed together.

2. A hydraulic cylinder with cooling function according to claim 1, characterized in that: The liquid cooling cavity is equipped with several alternating counter-current channel baffles and co-current channel baffles.

3. A hydraulic cylinder with cooling function according to claim 1, characterized in that: Two liquid inlet and outlet fittings are installed on the arc-shaped liquid cooling plate.

4. A hydraulic cylinder with cooling function according to claim 1, characterized in that: The two arc-shaped liquid cooling plates are connected together in series via connecting hoses.

5. A hydraulic cylinder with cooling function according to claim 1, characterized in that: A heat-insulating protective layer is attached to the outer arc plate surface of the arc-shaped liquid cooling plate.

6. A hydraulic cylinder with cooling function according to claim 1, characterized in that: The arc sleeve assembly strip is provided with a number of assembly holes, and assembly bolts are inserted into the assembly holes.

7. A hydraulic cylinder with cooling function according to claim 1, characterized in that: The end half-ring is provided with several pin holes, one end of the stop pin is threaded into the pin hole, and the other end of the stop pin is provided with an internal hexagonal groove.

8. A hydraulic cylinder with cooling function according to claim 1, characterized in that: The hydraulic cylinder body has a front end cover and a rear end cover fixedly installed at both ends, and a piston rod is inserted into the front end cover. One end of the piston rod extends into the hydraulic cylinder body and is fitted with a hydraulic plug.

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