High-temperature-resistant high-performance hydraulic oil cylinder

Abstract

The utility model relates to the technical field of hydraulic oil cylinders and discloses a high-temperature-resistant high-performance hydraulic oil cylinder which comprises an oil cylinder body and an installation assembly, a piston rod is movably installed in the oil cylinder body, the installation assembly comprises a gland, a first screw and a second screw, and the gland is installed on the front side of the oil cylinder body. The oil cylinder has the advantages that the heat absorption sleeve on the outer side of the oil cylinder body is tightly attached to the outer wall of the oil cylinder body, heat generated when the oil cylinder works can be efficiently absorbed, the cooling water pipe is wound on the outer side of the heat absorption sleeve in a spiral mode, the cooling water pipe can cool the oil cylinder, and the cooling water pipe can cool the oil cylinder. Heat absorbed by the heat absorption sleeve can be rapidly taken away through circulating flow of a cooling medium, heat exchange is achieved, it is ensured that the temperature of the oil cylinder is maintained within a reasonable range, and the situation that the performance of internal parts and the stability of hydraulic oil are affected due to overheating is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic oil cylinder technical field, concretely is a kind of high-temperature-resistant high-performance hydraulic oil cylinder. BACKGROUND

[0002] In many industrial fields, such as metallurgy, aerospace, power, chemical industry, etc., hydraulic oil cylinder, as a key power execution element, plays an indispensable role, however, the working environment of these industries is often accompanied by high temperature factors, which brings severe challenges to the normal operation of hydraulic oil cylinder;

[0003] The applicant found that a kind of high-temperature-resistant double-acting hydraulic oil cylinder was disclosed in Chinese patent, with publication (announcement) number "CN219432188U". The patent mainly uses inner heat insulation pad and outer heat insulation pad installed on the outside of the oil cylinder body, and cooperates with the vacuum cavity in the center of the heat insulation sleeve, to effectively isolate the influence of external high temperature on the inside of the oil cylinder body, thereby improving its high-temperature-resistant performance. The second threaded hole and the second mounting hole are provided at the upper and lower ends of the heat insulation sleeve, so that the heat insulation sleeve, the inner heat insulation pad and the outer heat insulation pad outside the oil cylinder body can be conveniently replaced after damage. However, the device cannot effectively handle the heat generated inside. Therefore, we propose a kind of high-temperature-resistant high-performance hydraulic oil cylinder. SUMMARY

[0004] The utility model aims at providing a kind of high-temperature-resistant high-performance hydraulic oil cylinder.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of high-temperature-resistant high-performance hydraulic oil cylinder, comprising oil cylinder body and mounting assembly, the piston rod is movably installed in the oil cylinder body, the mounting assembly includes gland, first screw and second screw, the gland is installed on the front side of oil cylinder body, and the center is movably connected with the piston rod, the first screw is connected to the edge of gland, the second screw is connected to the edge of rear end surface of oil cylinder body, the oil cylinder body outside is provided with heat absorption sleeve, the heat absorption sleeve outside is fixedly provided with spiral cooling water pipe, and the outside front and rear end is connected with heat insulation sleeve, the cooling water pipe is located between heat absorption sleeve and heat insulation sleeve, and the two ends are respectively connected with water inlet pipe and water outlet pipe, the side surface of gland is provided with connecting frame, the connecting frame is installed with heat dissipation assembly, the heat dissipation assembly includes ventilating hood, dustproof plate and fan, the bottom surface both ends of ventilating hood are connected with connecting frame, the dustproof plate is located at the center of the bottom surface of ventilating hood, and the fan is located in the inside of ventilating hood.

[0006] As a further scheme of the utility model: the inside of heat absorption sleeve is closely combined with the outer wall of oil cylinder body, and the water inlet pipe and the water outlet pipe are both penetrated in the heat insulation sleeve.

[0007] As a further scheme of the utility model: the heat dissipation assembly is fixed on the connecting frame through six bolts, the ventilation cover is located outside the piston rod and is provided with a plurality of ventilation holes on the side surface, and the dustproof plate and the fan are located below the piston rod.

[0008] As a further scheme of the utility model: the front side of the heat insulation sleeve is connected with the gland through a first screw, and the rear side is connected with the rear end surface of the oil cylinder body through a second screw.

[0009] As a further scheme of the utility model: the oil cylinder body is provided with inlet and outlet oil pipes at the front and rear ends of the side surface, and the inlet and outlet oil pipes penetrate the heat absorption sleeve and the heat insulation sleeve.

[0010] As a further scheme of the utility model: the rear end of the oil cylinder body is provided with a rear connector, and the front end of the piston rod is provided with a front connector.

[0011] As a further scheme of the utility model: the ends of the front connector and the rear connector are respectively provided with shaft holes for hinging, and the shaft centers of the two shaft holes are parallel, so that the oil cylinder body and the piston rod can move in extension and contraction on the same plane.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. The heat absorption sleeve outside the oil cylinder body closely adheres to the outer wall, can efficiently absorb the heat generated during the operation of the oil cylinder, the cooling water pipe spirally surrounds the outside of the heat absorption sleeve, the two ends of the cooling water pipe are connected with the water inlet pipe and the water outlet pipe, the circulating flow of the cooling medium can quickly take away the heat absorbed by the heat absorption sleeve, realizes heat exchange, ensures that the temperature of the oil cylinder is maintained in a reasonable range, avoids the influence of overheating on the performance of internal parts and the stability of hydraulic oil;

[0014] 2. The heat dissipation assembly is stably installed through the connecting frame, when the fan inside the ventilation cover rotates, air can be accelerated to flow from the side ventilation holes, further takes away the heat emitted by the piston rod and other components, strengthens the overall heat dissipation effect, in the aspect of heat insulation, the heat insulation sleeve effectively blocks the conduction of high temperature from the outside to the inside of the oil cylinder, the front side and the gland and the rear side and the rear end of the oil cylinder body are closely connected through screws, and a relatively low-temperature stable internal environment is created for the oil cylinder.

[0015] Other advantages, objects and features of the utility model will be described in the subsequent specification to some extent, and to some extent, will be obvious to those skilled in the art based on the study of the following text or can be taught from the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1It is the whole three-dimensional schematic view of the device in the embodiment of the utility model;

[0017] Figure 2 It is the whole left view schematic view of the device in the embodiment of the utility model;

[0018] Figure 3 It is the whole bottom view schematic view of the device in the embodiment of the utility model;

[0019] Figure 4 It is the whole cross section schematic view of the device in the embodiment of the utility model;

[0020] Figure 5 It is the partial three-dimensional schematic view of the device in the embodiment of the utility model.

[0021] In the drawing: 1, oil cylinder body; 2, installation assembly; 201, gland; 3, piston rod; 4, heat absorption sleeve; 5, cooling water pipe; 501, water inlet pipe; 502, water outlet pipe; 6, heat insulation sleeve; 7, connecting frame; 8, heat dissipation assembly; 801, ventilating cover; 802, dustproof plate; 803, fan. DETAILED DESCRIPTION

[0022] The specific embodiments of the utility model will be further described below in conjunction with the drawings, and it needs to be explained here that the description of these embodiments is used to help understanding the utility model, but does not constitute the limitation to the utility model.

[0023] In addition, the technical features involved in each embodiment of the utility model described below can be combined mutually as long as they do not constitute the conflict.

[0024] Please refer to the drawings Figure 1 - the drawings Figure 5The utility model discloses a kind of high-temperature-resistant high-performance hydraulic oil cylinder, piston rod 3 is movably installed in oil cylinder body 1 inside, installation assembly 2 includes gland 201, first screw and second screw, gland 201 is installed in oil cylinder body 1 front side, and center is movably connected with piston rod 3, first screw is connected in the edge of gland 201, second screw is connected in the rear end surface edge of oil cylinder body 1, heat absorption sleeve 4 is equipped outside oil cylinder body 1, spiral cooling water pipe 5 of encircling is fixedly arranged outside heat absorption sleeve 4, and outside front and rear end is connected with heat insulation sleeve 6, the contact area between cooling water pipe 5 and heat absorption sleeve 4 can be increased by spiral encircling layout, so that heat exchange is more efficient, cooling water pipe 5 is between heat absorption sleeve 4 and heat insulation sleeve 6, and two ends are connected with water inlet pipe 501 and water outlet pipe 502 respectively, cooling medium can be continuously delivered to the inside of cooling water pipe 5 by water inlet pipe 501, cooling medium is in the process of flowing through entire cooling water pipe 5, will fully absorb the heat transferred by heat absorption sleeve 4, then by water outlet pipe 502, cooling medium carrying heat is discharged, to realize the effective transfer of the heat of oil cylinder body 1, gland 201 side is equipped with connecting frame 7, heat dissipation assembly 8 is installed on connecting frame 7, heat dissipation assembly 8 includes ventilating hood 801, dust plate 802 and fan 803, ventilating hood 801 bottom surface both ends are connected with connecting frame 7, dust plate 802 is located in the center of ventilating hood 801 bottom surface, dust plate 802 can effectively avoid foreign matter to adhere on fan 803 or other components, and then influence the normal rotation of fan 803 and the heat dissipation effect of entire heat dissipation assembly 8, fan 803 is located inside ventilating hood 801.

[0025] In example one, heat absorption sleeve 4 inside is closely attached with the outer wall of oil cylinder body 1, water inlet pipe 501 and water outlet pipe 502 are all penetrated in heat insulation sleeve 6, heat dissipation assembly 8 is fixed on connecting frame 7 by six groups of bolts, ventilating hood 801 is located outside piston rod 3, and a plurality of ventilation holes are formed in the side surface, dust plate 802 and fan 803 are located below piston rod 3;

[0026] Specifically, when oil cylinder body 1 generates heat in the working process due to the flow of internal hydraulic oil and the friction between parts and other factors, heat can be quickly conducted to heat absorption sleeve 4, heat insulation sleeve 6 mainly functions to block the conduction of external high temperature to the inside of oil cylinder, to create a relatively low-temperature stable internal environment for the oil cylinder, when fan 803 starts to rotate, air can be accelerated to flow from the plurality of ventilation holes formed in the side surface of ventilating hood 801, so that the air can quickly take away the heat emitted by components such as piston rod 3 in the working process, further strengthening the heat dissipation effect of the entire hydraulic oil cylinder.

[0027] In the second embodiment, the front side of the heat insulation sleeve 6 is connected to the gland 201 by a first screw, and the rear side is connected to the rear end face of the oil cylinder body 1 by a second screw, the oil cylinder body 1 is provided with inlet and outlet oil pipes at the front and rear ends of the side face, the inlet and outlet oil pipes penetrate the heat absorption sleeve 4 and the heat insulation sleeve 6, the rear end of the oil cylinder body 1 is provided with a rear connector, and the front end of the piston rod 3 is provided with a front connector; the distal ends of the front connector and the rear connector are respectively provided with shaft holes for articulation, and the shaft centers of the two shaft holes are parallel, so that the oil cylinder body and the piston rod can move in extension and contraction on the same plane.

[0028] Specifically, the front side of the heat insulation sleeve 6 is connected to the gland 201 by a first screw, and the rear side is connected to the rear end face of the oil cylinder body 1 by a second screw, the oil cylinder body 1 is provided with inlet and outlet oil pipes at the front and rear ends of the side face, the inlet and outlet oil pipes penetrate the heat absorption sleeve 4 and the heat insulation sleeve 6, the rear end of the oil cylinder body 1 is provided with a rear connector, and the front end of the piston rod 3 is provided with a front connector; the distal ends of the front connector and the rear connector are respectively provided with shaft holes for articulation, and the shaft centers of the two shaft holes are parallel, so that the oil cylinder body and the piston rod can move in extension and contraction on the same plane.

[0029] Working principle:

[0030] First, when the high-temperature-resistant and high-performance hydraulic oil cylinder is working, the piston rod 3 in the oil cylinder body 1 moves to realize corresponding action, and heat is generated during this period. The heat absorption sleeve 4 closely attached to the outer wall of the oil cylinder body 1 can efficiently absorb this heat. In the spiral cooling water pipe 5 outside the heat absorption sleeve 4, cooling medium is introduced through the water inlet pipe 501, and the cooling medium circulates in the water pipe, taking away the heat absorbed by the heat absorption sleeve 4 and then being discharged through the water outlet pipe 502, thereby realizing heat exchange to control the temperature of the oil cylinder. At the same time, the heat dissipation assembly 8 installed on the side connecting frame 7 of the gland 201 plays a role. The fan 803 rotates in the ventilating hood 801, promoting the accelerated flow of air from the ventilating holes in the side face of the ventilating hood 801, taking away the heat emitted by the piston rod 3 and other components, and the dustproof plate 802 prevents dust from affecting the operation of the fan 803. In addition, the heat insulation sleeve 6 is connected to the gland 201 and the rear end of the oil cylinder body 1 by screws to block the transmission of external high temperature, and the inlet and outlet oil pipes are responsible for the transportation of hydraulic oil. The rear connector and the front connector are used to interface with external equipment. Thus, the entire working process is completed.

[0031] The above-mentioned front, rear, left, right, top and bottom are based on the drawings in the specification Figure 1 and are defined as front, left, right, top and bottom according to the standard of the human observation angle, with the side facing the observer defined as front, the left side of the observer defined as left, and so on.

[0032] In the description of the utility model, need understanding is, the orientation or position relation that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and is not indicating or implying that the indicated device or element must have a particular orientation, is constructed and operated with a particular orientation, therefore can not be understood as the limitation to the protection scope of the utility model.

[0033] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the described embodiments.

[0034] For those skilled in the art, various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and still fall within the protection scope of the utility model.

Claims

1. A high-temperature-resistant high-performance hydraulic cylinder, comprising a cylinder body (1) and a mounting assembly (2), a piston rod (3) being movably mounted inside the cylinder body (1), the mounting assembly (2) comprising a gland (201), a first screw and a second screw, the gland (201) being mounted on the front side of the cylinder body (1) and movably connected with the piston rod (3) at the center, the first screw being connected to the edge of the gland (201), and the second screw being connected to the edge of the rear end face of the cylinder body (1), characterized in that: The oil cylinder body (1) is provided with a heat absorbing sleeve (4) outside, the heat absorbing sleeve (4) is provided with a spiral surrounding cooling water pipe (5) outside, and the outer side front and rear ends are connected with a heat insulation sleeve (6), the cooling water pipe (5) is located between the heat absorbing sleeve (4) and the heat insulation sleeve (6), and the two ends are connected with the water inlet pipe (501) and the water outlet pipe (502) respectively, the side of the gland (201) is provided with a connecting frame (7), the connecting frame (7) is provided with a heat dissipation assembly (8), the heat dissipation assembly (8) comprises a ventilation cover (801), a dustproof plate (802) and a fan (803), the ventilation cover (801) is connected with the connecting frame (7) on the bottom surface of both ends, the dustproof plate (802) is arranged on the bottom surface of the ventilation cover (801), and the fan (803) is arranged in the ventilation cover (801).

2. The high-temperature-resistant high-performance hydraulic oil cylinder according to claim 1, characterized in that: The heat absorbing sleeve (4) is closely combined with the outer wall of the oil cylinder body (1), and the water inlet pipe (501) and the water outlet pipe (502) penetrate the heat insulation sleeve (6).

3. The high-temperature-resistant high-performance hydraulic oil cylinder according to claim 1, characterized in that: The heat dissipation assembly (8) is fixed on the connecting frame (7) by six groups of bolts, the ventilation cover (801) is located outside the piston rod (3), and a plurality of ventilation holes are formed in the side surface, and the dustproof plate (802) and the fan (803) are located below the piston rod (3).

4. The high-temperature-resistant high-performance hydraulic oil cylinder according to claim 1, characterized in that: The front side of the heat insulation sleeve (6) is connected with the gland (201) by the first screw, and the rear side is connected with the rear end surface of the oil cylinder body (1) by the second screw.

5. The high-temperature-resistant high-performance hydraulic oil cylinder according to claim 1, characterized in that: The oil cylinder body (1) is provided with an inlet and outlet oil pipe on the side surface front and rear ends, and the inlet and outlet oil pipe penetrates the heat absorbing sleeve (4) and the heat insulation sleeve (6).

6. The high-temperature-resistant high-performance hydraulic oil cylinder according to claim 1, characterized in that: The rear end of the oil cylinder body (1) is provided with a rear connector, and the front end of the piston rod (3) is provided with a front connector.

7. The high-temperature-resistant high-performance hydraulic oil cylinder according to claim 6, characterized in that: The ends of the front connector and the rear connector are respectively provided with shaft holes for hinging, and the shaft centers of the two shaft holes are parallel, so that the oil cylinder body and the piston rod can move in the same plane.

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