CN111219566B - Heat insulation structure, oil cylinder assembly and excavator - Google Patents
Heat insulation structure, oil cylinder assembly and excavator Download PDFInfo
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- CN111219566B CN111219566B CN202010164864.2A CN202010164864A CN111219566B CN 111219566 B CN111219566 B CN 111219566B CN 202010164864 A CN202010164864 A CN 202010164864A CN 111219566 B CN111219566 B CN 111219566B
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- heat insulation
- positioning pin
- layer
- protective layer
- connecting piece
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/12—Arrangements for supporting insulation from the wall or body insulated, e.g. by means of spacers between pipe and heat-insulating material; Arrangements specially adapted for supporting insulated bodies
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
- E02F9/2271—Actuators and supports therefor and protection therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1485—Special measures for cooling or heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/06—Arrangements using an air layer or vacuum
- F16L59/065—Arrangements using an air layer or vacuum using vacuum
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/08—Means for preventing radiation, e.g. with metal foil
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Thermal Insulation (AREA)
Abstract
The invention relates to the technical field of engineering machinery, in particular to a heat insulation structure, an oil cylinder assembly and an excavator. This thermal-insulated structure passes through clamping mechanism to connect in order in basic connecting piece including thermal-insulated body, protection casing, basic connecting piece and clamping mechanism, thermal-insulated body and protection casing to make the protection casing cover in one side that deviates from in basic connecting piece of thermal-insulated body. The oil cylinder assembly comprises the heat insulation structure. The excavator comprises the oil cylinder assembly. This thermal-insulated structure, this oil cylinder subassembly and this excavator through treating heat-proof device with this thermal-insulated structure equipment under current high temperature production environment conveniently to reduce high temperature environment and to treating heat-proof device's negative influence, thereby improve and treat heat-proof component suitability and working property under high temperature environment, and then improve production efficiency and prolong the life of treating heat-proof component.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to a heat insulation structure, an oil cylinder assembly and an excavator.
Background
In the related art, the oil cylinder is not provided with a heat insulation protection component in structure, so that the applicability in a high-temperature working environment is low, and the working efficiency is reduced due to the reduction of the working performance.
For example, in the steel making process, the discharged slag has high temperature, and the high temperature slag is cleaned by workers operating equipment to remove the slag. Under the working condition of high-temperature slag removal, the normal work of the oil cylinder and a hydraulic pipeline can be seriously influenced by the high-temperature environment, so that the hydraulic oil is deteriorated, the oil cylinder cannot normally work, and the working efficiency and the service life of the high-temperature slag removal are influenced.
Disclosure of Invention
The first purpose of the present invention is to provide a heat insulation structure, so as to solve the technical problems of low applicability and low working efficiency caused by lack of high temperature protection in the structure of the oil cylinder in the prior art to a certain extent.
The second objective of the present invention is to provide an oil cylinder assembly, so as to solve the technical problems of low applicability and low working efficiency caused by lack of high temperature protection in the structure of the oil cylinder in the prior art to a certain extent.
The third objective of the present invention is to provide an excavator, so as to solve the technical problems of low applicability and low working efficiency caused by lack of high temperature protection in the structure of the oil cylinder of the excavator in the prior art to a certain extent.
In order to achieve the above object, the present invention provides the following technical solutions;
based on the first purpose, the heat insulation structure provided by the invention comprises a heat insulation body, a protective cover, a basic connecting piece and a clamping mechanism, wherein the heat insulation body and the protective cover are sequentially connected to the basic connecting piece through the clamping mechanism, so that the protective cover covers one side of the heat insulation body, which is far away from the basic connecting piece.
In any one of the above technical solutions, optionally, the clamping mechanism includes a first clamping assembly and a second clamping assembly, the heat insulation body is clamped with the protection cover detachably through the first clamping assembly, and the protection cover is clamped with the base connector detachably through the second clamping assembly.
In any one of the above technical solutions, optionally, the first clamping assembly includes a lap joint and a lap joint seat provided with a lap joint groove, the lap joint seat is provided with the protective cover, the lap joint is provided with the heat insulation body, and the lap joint passes through the lap joint groove and is detachably connected with the lap joint seat.
In any of the above technical solutions, optionally, the second clamping assembly includes a positioning lug, a positioning pin, a clamping seat, and a clamping claw;
a buckling groove is formed in the clamping seat, the positioning lug and the positioning pin are both arranged at the opening of the buckling groove, and the positioning pin can be retracted into the side wall of the buckling groove;
the clamping claw comprises a tabling part and a fixing part which are connected, and the fixing part is arranged on the protective cover;
when the positioning pin moves to a first position, the clamping claw can be clamped in a positioning space defined by the groove bottom of the buckling groove, the positioning lug and the positioning pin;
when the positioning pin moves to the second position, the embedding part can pass through the positioning pin and the positioning lug to enter and exit the positioning space.
In any of the above technical solutions, optionally, a guide channel is disposed on a side wall of the fastening groove, the positioning pin includes a positioning pin body and an elastic member, the positioning pin body is connected to the guide channel through the elastic member, and the elastic member makes the positioning pin body have a tendency of moving in a direction extending out of the guide channel;
the surface of the positioning pin body facing the opening of the buckling groove is provided with a guide inclined plane, and the guide inclined plane is pressed towards the direction of the bottom of the buckling groove, so that the positioning pin body has the tendency of moving towards the direction of retracting into the guide channel;
the positioning pin body is provided with a poke rod, the clamping seat is provided with a poke through hole communicated with the guide channel, and the poke rod penetrates through the poke through hole to extend out of the guide channel and can move in the poke through hole along the movable direction of the positioning pin body;
still be provided with in the direction passageway along the direction of movement of locating pin body extends the direction slide, the locating pin body be provided with the slider of slide looks adaptation.
In any of the above technical solutions, optionally, the heat insulation body includes a first protective layer, a second protective layer, and a cooling pipe disposed between the first protective layer and the second protective layer, where the cooling pipe is used for introducing a cooling medium;
first protective layer passes through first joint subassembly with protection casing detachably joint, second protective layer butt basic connecting piece.
In any of the above technical solutions, optionally, the heat insulation body further includes a fixing layer fixedly connected to the second protective layer, and a reinforcing layer and a heat insulation layer sequentially disposed between the fixing layer and the first protective layer;
and a fixing groove matched with the cooling pipe is formed between the fixing layer and the second protective layer, and the cooling pipe is arranged in the fixing groove.
In any of the above technical solutions, optionally, the first protective layer and the second protective layer are both metal foil cloth;
the heat insulating layer is an aerogel layer or a vacuum heat insulating layer;
the reinforcing layer is a glass fiber layer;
the fixing layer is formed by a metal net;
the base connector is a hoop connector.
Based on the second purpose, the oil cylinder assembly provided by the invention comprises the heat insulation structure provided by any one of the technical schemes and the oil cylinder with the periphery coated with the heat insulation structure.
In view of the third object, the excavator according to the present invention includes the cylinder assembly according to any one of the above aspects.
By adopting the technical scheme, the invention has the beneficial effects that:
the invention provides a heat insulation structure which comprises a heat insulation body, a protective cover, a base connecting piece and a clamping mechanism. This thermal-insulated structure passes through basic connecting piece to be connected in treating heat-proof device, and the protection casing can avoid treating heat-proof device and be injured by a crashing object, and the body that insulates against heat simultaneously can play the heat that prevents high temperature environment to the effect of treating heat-proof device transmission, can this thermal-insulated structure of convenient and fast ground dismouting through latch mechanism. Therefore, the heat insulation structure can be conveniently assembled on the device to be insulated in the existing high-temperature production environment, so that the negative influence of the high-temperature environment on the device to be insulated is reduced, the applicability and the working performance of the component to be insulated in the high-temperature environment are improved, the production efficiency is improved, and the service life of the component to be insulated is prolonged.
The oil cylinder assembly provided by the invention comprises the heat insulation structure, so that all the beneficial effects realized by the heat insulation structure can be realized.
The excavator provided by the invention comprises the oil cylinder assembly, so that all the beneficial effects realized by the oil cylinder assembly can be realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of a thermal insulation structure according to an embodiment of the present invention;
FIG. 2 is a schematic view of a second clamping assembly of the thermal insulation structure according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an oil cylinder assembly according to a second embodiment of the present invention.
Icon: 1-oil cylinder; 2-a protective cover; 3-a thermally insulating body; 31-a second protective layer; 32-a fixing layer; 33-a heat insulating layer; 34-a cooling pipe; 35-a reinforcing layer; 36-a first protective layer; 4-a base connector; 5-a card seat component; 51-a bayonet mount; 52-positioning space; 53-a guide channel; 54-a locating pin body; 55-an elastic member; 56-a slide way; 57-a slide block; 58-positioning lugs; 6-a jaw assembly; 61-a fixed part; 62-a chimeric portion; 63-a buffer pad; 7-a rubber gasket; 8-second clamping assembly.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
The heat insulation structure provided by the embodiment is used for the oil cylinder assembly.
Referring to fig. 1 and 2 in combination with fig. 3, the heat insulation structure provided by the present embodiment includes a heat insulation body 3, a protection cover 2, a base connector 4, and a clamping mechanism.
The heat insulation body 3 and the protective cover 2 are sequentially connected to the base connecting piece 4 through a clamping mechanism, so that the protective cover 2 covers one side of the heat insulation body 3, which is deviated from the base connecting piece 4.
Specifically, according to thermal-insulated demand, install basic connecting piece 4 in the outside of treating heat-proof device, be connected thermal-insulated body 3 and protection casing 2 and basic connecting piece 4 through latch mechanism, connect the back, thermal-insulated body 3 is located between protection casing 2 and basic connecting piece 4. Wherein, improved this thermal-insulated structure's application through setting up basic connecting piece 4, chooseed for use to be suitable for treating heat-proof device's basic connecting piece 4, can make this thermal-insulated structure be applicable to arbitrary and treat heat-proof device. The heat insulation body 3 can play a role in preventing or obviously reducing heat transfer, and is a key component for reducing the influence on the working performance of the heat insulation device to be treated in a high-temperature working environment. The protective cover 2 is high in structural strength, and when accidental loads such as impact or smashing are met, the accidental loads can be effectively prevented from damaging the heat insulation body 3, the clamping mechanism and the device to be insulated. Through setting up latch mechanism, can improve the convenience of the dismouting between this thermal-insulated structure's thermal-insulated body 3, protection casing 2 and the latch mechanism.
Optionally, the protective cover 2 is stamped with a reinforcing groove, which is beneficial to improving the impact resistance of the protective cover 2.
The heat insulation structure in the embodiment comprises a heat insulation body 3, a protective cover 2, a basic connecting piece 4 and a clamping mechanism. This thermal-insulated structure passes through basic connecting piece 4 to be connected in treating heat-proof device, and protection casing 2 can avoid treating heat-proof device and injures by a crashing object, and thermal-insulated body 3 can play the effect that stops high temperature environment's heat to treating heat-proof device transmission simultaneously, can this thermal-insulated structure of convenient and fast ground dismouting through latch mechanism. Therefore, the heat insulation structure can be conveniently assembled on the device to be insulated in the existing high-temperature production environment, so that the negative influence of the high-temperature environment on the device to be insulated is reduced, the applicability and the working performance of the component to be insulated in the high-temperature environment are improved, the production efficiency is improved, and the service life of the component to be insulated is prolonged.
In the alternative of this embodiment, latch mechanism includes first joint subassembly and second joint subassembly 8, and thermal-insulated body 3 is through first joint subassembly and 2 detachably joints of protection casing, and protection casing 2 is through second joint subassembly 8 and 4 detachably joints of basic connecting piece.
Specifically, will insulate against heat body 3 and install on protection casing 2 through first joint subassembly earlier, rethread second joint subassembly 8 with protection casing 2 with insulate against heat body 3 and install in basic connecting piece 4, when dismantling the contrary preface carry on above operation can, the dismouting is very convenient swift.
In addition, installation back protection casing 2 will insulate against heat body 3 through first joint subassembly and compress tightly in basic connecting piece 4 to basic connecting piece 4 and first joint subassembly play jointly to 3 ground limiting displacement of thermal-insulated body, improve the steadiness of thermal-insulated body 3 between protection casing 2 and basic connecting piece 4.
In the alternative of this embodiment, first joint subassembly includes the overlap joint buckle and is provided with the overlap joint seat in overlap joint groove, and the overlap joint seat sets up in protection casing 2, and the overlap joint buckle sets up in thermal-insulated body 3, and the overlap joint buckle passes through the overlap joint groove and is connected with overlap joint seat detachably.
Because thermal-insulated body 3 is located between protection casing 2 and the basic connecting piece 4, can play certain limiting displacement, therefore first joint subassembly between thermal-insulated body 3 and the protection casing 2 can adopt comparatively simple connection structure to reduce certain cost on the basis of the fixed reliability of guaranteeing to thermal-insulated body 3. Wherein, the first clamping component can adopt the prior hasp with the locking function.
Optionally, the first snap-in component is a safety catch.
In an alternative of this embodiment, the second clamping assembly 8 is composed of a clamping seat assembly 5 and a jaw assembly 6. The card seat assembly 5 comprises a positioning lug 58, a positioning pin and a card seat 51. Jaw assembly 6 includes a clamping jaw and a cushion 63.
The fastening groove is formed in the clamping seat 51, the positioning lug 58 and the positioning pin are both arranged at the opening of the fastening groove, the positioning pin can be retracted into the side wall of the fastening groove, the opening of the fastening groove can be avoided to the maximum when the positioning pin is retracted into the side wall of the fastening groove to the maximum, and the positioning pin can be stopped at the opening of the fastening groove to the maximum when extending out of the side wall of the fastening groove to the maximum.
The clamping claw comprises a tabling part 62 and a fixing part 61 which are connected, the fixing part 61 is arranged on the protective cover 2, wherein the fixing part 61 extends along the thickness direction of the heat insulation body 3, so that the clamping claw can cross the heat insulation body 3 and extend from the protective cover 2 to the base connecting piece 4.
When the positioning pin moves to the first position, the clamping claw can be clamped in the positioning space 52 defined by the groove bottom of the buckling groove, the positioning lug 58 and the positioning pin, namely, the embedded part 62 which is extruded into the positioning space 52 is prevented from automatically separating out through the common limiting action of the positioning lug 58 and the positioning pin, and the purpose of clamping and limiting is achieved.
When the positioning pin moves to the second position, the engaging portion 62 can pass over the positioning pin and the positioning lug 58 to enter the positioning space 52, so that the clamping claw can be conveniently extruded into or separated from the positioning space 52, and the purpose of facilitating disassembly and assembly is achieved.
That is to say, through setting up the locating pin that can retract or stretch out the buckling groove lateral wall, cooperate with location lug 58, can realize the switching between the two states of opening and locking to the buckling groove to under the block state, can reliably connect, under the dismouting state, can dismouting simple and conveniently.
Optionally, the first position is a position where the positioning pin extends out of the side wall of the fastening groove by a distance not less than a first distance, and the second position is a position where the positioning pin extends out of the side wall of the fastening groove by a distance not more than a second distance, wherein the first distance is not less than the second distance.
Optionally, a cushion pad 63 is disposed between the fixing portion 61 and the shield 2.
In an alternative of this embodiment, the side wall of the fastening groove is provided with a guide channel 53, the positioning pin includes a positioning pin body 54 and an elastic member 55, the positioning pin body 54 is connected in the guide channel 53 through the elastic member 55, the elastic member 55 makes the positioning pin body 54 have a tendency of moving towards a direction extending out of the guide channel 53, the guide channel 53 provides an installation space for the elastic member 55 and the positioning pin body 54, and in addition, the elastic member 55 can make the positioning pin body 54 automatically extend out of the side wall of the fastening groove.
The surface of the positioning pin body 54 facing the opening of the engagement groove is provided with a guide slope, and the guide slope is pressed in the direction of the bottom of the engagement groove, so that the positioning pin body 54 tends to move in the direction of the retraction guide passage 53.
Specifically, during the mounting process, a part of the fitting portion 62 is projected into a part of the positioning space 52 corresponding to the positioning lug 58 through a gap between the positioning lug 58 and the positioning pin body 54. The other part of the embedding part 62 is stopped outside the buckling groove by the positioning pin body 54 and is contacted with the guide inclined plane, at this time, the embedding part 62 is pressed towards the direction of the groove bottom of the buckling groove, the guide inclined plane can decompose the pressure from the embedding part 62 into component force pointing to the groove bottom of the guide channel 53, the elastic piece 55 is compressed under the action of the component force, so that the positioning pin body 54 is driven to retract into the guide channel 53, namely, the guide channel 53 moves to the second position, so that the opening of the buckling groove is avoided, the other part of the embedding part 62 is pressed into the part of the positioning space 52 corresponding to the positioning pin under the action of the pressure, the guide inclined plane loses the pressure, the elastic piece 55 automatically rebounds, the positioning pin body 54 rebounds to the first position under the action of the elastic piece 55, the embedding part 62 is limited in the positioning space 52, and the protective cover 2 is installed on the base connecting piece 4.
The positioning pin body 54 is provided with a poke rod, the clamping seat 51 is provided with a poke through hole communicated with the guide channel 53, and the poke rod penetrates through the poke through hole, extends out of the guide channel 53 and can move in the poke through hole along the movable direction of the positioning pin body 54. The poke rod is poked to the side of the groove bottom of the guide channel 53, namely the position of the positioning pin body 54 can be moved from the first position to the second position, the positioning pin body 54 is enabled to avoid the opening of the buckling groove, the embedding part 62 can be pulled out from the positioning space 52, and the protective cover 2 can be detached from the basic connecting piece 4.
The guide channel 53 is further provided with a guide slide way 56 extending along the movable direction of the positioning pin body 54, and the positioning pin body 54 is provided with a slide block 57 matched with the slide way 56. By arranging the slide way 56 and the slide block 57, a guiding function can be provided for the reciprocating movement of the positioning pin body 54 in the guide channel 53, so that the smooth and stable movement can be ensured. In the engaged state, when the fitting portion 62 in the positioning space 52 is twisted, the positioning pin body 54 is pressed to generate a shearing force, and the engagement relationship between the slider 57 and the slide 56 can resist the shearing force to maintain the stopper function of the positioning pin body 54.
Alternatively, the material of the engaging portion 62 may be nylon or plastic material with certain elasticity, so that the engaging portion 62 is pushed into the positioning space 52 during the installation process.
In an alternative of this embodiment, the heat insulation body 3 includes a first protective layer 36, a second protective layer 31, and a cooling pipe 34 disposed between the first protective layer 36 and the second protective layer 31, where the cooling pipe 34 is used for introducing a cooling medium, and the cooling medium may be a cooling medium of a device to be heat insulated; first protective layer 36 is through first joint subassembly and protection casing 2 detachably joint, and second protective layer 31 butt basic connecting piece 4.
The cooling pipe 34 is sandwiched between the first protective layer 36 and the second protective layer 31, and the cooling pipe 34 can be protected from being damaged, so that the reliability of a cooling process in which a cooling medium circulates and takes away heat is ensured. In addition, this thermal-insulated body 3 adopts coolant to treat heat-proof device and cools down, is favorable to further reducing the negative effect of high temperature environment to treating heat-proof device. And because the cooling medium is provided by the cooling system of the device to be insulated, the cooling efficiency of the cooling system of the device to be insulated can be improved, and the cost is reduced.
In an alternative of this embodiment, the insulation body 3 further includes a fixing layer 32 fixedly connected to the second protective layer 31, a reinforcing layer 35 and an insulation layer 33 sequentially disposed between the fixing layer 32 and the first protective layer 36. That is, the thermal insulation body 3 includes the first protective layer 36, the reinforcing layer 35, the thermal insulation layer 33, the fixing layer 32, the cooling pipe 34, and the second protective layer 31, which are sequentially arranged.
The heat insulation layer 33 is arranged to ensure that the heat insulation body 3 has sufficiently low heat conduction capacity and has heat insulation and cooling functions; the structural strength of the insulating body 3 is improved by providing a reinforcing layer 35.
Since the second protective layer 31 is closest to the device to be insulated, the cooling pipe 34 is closest to the second protective layer 31, which is beneficial to improving the heat exchange efficiency of the cooling medium. A fixing groove matched with the cooling pipe 34 is formed between the fixing layer 32 and the second protective layer 31, and the cooling pipe 34 is arranged in the fixing groove, so that the position of the cooling pipe 34 can be kept stable, and the optimal cooling effect is kept.
Alternatively, the cooling tubes 34 are arranged in an S-shape, and the fixing grooves extend in an S-shape, thereby increasing the flow length of the cooling medium and the heat exchange area.
In the alternative of this embodiment, first protective layer 36 and second protective layer 31 are metal foil cloth, and metal foil cloth material easily obtains, and has good wear resistance and formability to on the basis of for other layer structures provide the protection, can also improve this thermal-insulated body 3 variety in shape.
Optionally, the first protective layer 36 and the second protective layer 31 are both made of aluminum foil cloth, which can also have a certain heat radiation reflecting effect while playing a role in protection.
The heat insulation layer 33 is an aerogel layer or a vacuum heat insulation layer, and the aerogel layer and the vacuum heat insulation layer are used as novel heat insulation materials, so that the heat insulation performance is very beneficial, the heat insulation effect is favorably improved, and the influence of a high-temperature environment on the working performance of the heat insulation device is further reduced.
The reinforcing layer 35 is a glass fiber layer, which has good heat resistance and structural strength, and is beneficial to prolonging the applicability and the service life of the reinforcing layer 35 and the heat insulation body 3 in a high-temperature environment on the basis of improving the structural strength of the heat insulation body 3.
The fixed layer 32 is formed by the metal mesh, and the metal mesh wire can not influence the heat transfer effect of cooling tube 34, and easily shaping fixed slot guarantees the fixed effect to cooling tube 34.
The base connector 4 is a hoop connector and is suitable for devices to be insulated in various sizes and shapes. Optionally, the hoop connecting piece is a fastening hoop provided with a connecting flange, so that the connection is reliable, and the disassembly and the assembly are convenient.
Optionally, the pinch is used in conjunction with a rubber grommet 7 to dampen vibrations between the device to be insulated and the pinch.
Example two
The second embodiment provides an oil cylinder assembly, the second embodiment comprises the heat insulation structure in the first embodiment, the technical features of the heat insulation structure disclosed in the first embodiment are also applicable to the second embodiment, and the technical features of the heat insulation structure disclosed in the first embodiment are not repeatedly described.
Referring to fig. 3 in combination with fig. 1 and 2, the oil cylinder assembly provided in this embodiment includes the oil cylinder 1 having the heat insulation structure of the first embodiment and having the heat insulation structure wrapped around the outer circumference.
Through set up this heat-insulating structure in the periphery of hydro-cylinder 1, can completely cut off the heat among the operational environment and conduct to hydro-cylinder 1 is inside to can prevent that hydro-cylinder 1 excessively heats up and even can make hydro-cylinder 1 cool down, protect hydro-cylinder 1 and inside hydraulic oil, maintain the stable and reliable work of hydro-cylinder 1.
Optionally, the heat insulation body 3 and the protective cover 2 of the heat insulation structure are both arc-shaped, so as to improve the matching degree of the heat insulation structure to the shape of the oil cylinder 1. In order to improve the heat insulation effect, the comprehensiveness of coating the oil cylinder 1 can be improved in a mode of splicing a plurality of heat insulation structures.
Alternatively, the cooling medium in the cooling pipe 34 is supplied by a hydraulic oil cooler of the cylinder 1.
The oil cylinder assembly in the present embodiment has the advantages of the heat insulation structure in the first embodiment, and the advantages of the heat insulation structure disclosed in the first embodiment will not be described again.
EXAMPLE III
The third embodiment provides an excavator, the third embodiment comprises the cylinder assembly of the second embodiment, the technical features of the cylinder assembly disclosed in the second embodiment are also applicable to the third embodiment, and the technical features of the cylinder assembly disclosed in the second embodiment are not described repeatedly.
The excavator in the embodiment has the advantages of the oil cylinder assembly in the second embodiment, and the advantages of the excavator disclosed in the first embodiment are not described repeatedly herein.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention. Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Claims (7)
1. The oil cylinder assembly is characterized by comprising a heat insulation structure and an oil cylinder with the periphery coated with the heat insulation structure;
the heat insulation structure comprises a heat insulation body, a protective cover, a basic connecting piece and a clamping mechanism, wherein the basic connecting piece is installed on the outer side of the oil cylinder, and the heat insulation body and the protective cover are sequentially connected to the basic connecting piece through the clamping mechanism so that the protective cover covers one side of the heat insulation body, which is far away from the basic connecting piece;
the clamping mechanism comprises a first clamping component and a second clamping component, and the protective cover is detachably clamped with the base connecting piece through the second clamping component;
the heat insulation body comprises a first protective layer, a second protective layer and a cooling pipe arranged between the first protective layer and the second protective layer, and the cooling pipe is used for introducing a cooling medium;
first protective layer passes through first joint subassembly with protection casing detachably joint, second protective layer butt basic connecting piece.
2. The cylinder assembly of claim 1, wherein the first snap-fit assembly comprises a lap joint and a lap joint seat provided with a lap joint groove, the lap joint seat is disposed on the protective cover, the lap joint is disposed on the heat insulation body, and the lap joint is detachably connected with the lap joint seat through the lap joint groove.
3. The cylinder assembly of claim 1, wherein the second clamping assembly comprises a positioning lug, a positioning pin, a clamping seat and a clamping claw;
a buckling groove is formed in the clamping seat, the positioning lug and the positioning pin are both arranged at the opening of the buckling groove, and the positioning pin can be retracted into the side wall of the buckling groove;
the clamping claw comprises a tabling part and a fixing part which are connected, and the fixing part is arranged on the protective cover;
when the positioning pin moves to a first position, the clamping claw can be clamped in a positioning space defined by the groove bottom of the buckling groove, the positioning lug and the positioning pin;
when the positioning pin moves to the second position, the embedding part can pass through the positioning pin and the positioning lug to enter and exit the positioning space.
4. The cylinder assembly of claim 3,
the side wall of the buckling groove is provided with a guide channel, the positioning pin comprises a positioning pin body and an elastic piece, the positioning pin body is connected into the guide channel through the elastic piece, and the elastic piece enables the positioning pin body to have a tendency of moving towards a direction extending out of the guide channel;
the surface of the positioning pin body facing the opening of the buckling groove is provided with a guide inclined plane, and the guide inclined plane is pressed towards the direction of the bottom of the buckling groove, so that the positioning pin body has the tendency of moving towards the direction of retracting into the guide channel;
the positioning pin body is provided with a poke rod, the clamping seat is provided with a poke through hole communicated with the guide channel, and the poke rod penetrates through the poke through hole to extend out of the guide channel and can move in the poke through hole along the movable direction of the positioning pin body;
still be provided with in the direction passageway along the direction of movement of locating pin body extends the direction slide, the locating pin body be provided with the slider of slide looks adaptation.
5. The cylinder assembly of claim 1,
the heat insulation body further comprises a fixing layer fixedly connected with the second protective layer, and a reinforcing layer and a heat insulation layer which are sequentially arranged between the fixing layer and the first protective layer;
and a fixing groove matched with the cooling pipe is formed between the fixing layer and the second protective layer, and the cooling pipe is arranged in the fixing groove.
6. The cylinder assembly of claim 5,
the first protective layer and the second protective layer are both metal foil cloth;
the heat insulating layer is an aerogel layer or a vacuum heat insulating layer;
the reinforcing layer is a glass fiber layer;
the fixing layer is formed by a metal net;
the base connector is a hoop connector.
7. An excavator comprising a cylinder assembly as claimed in any one of claims 1 to 6.
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| CN202010164864.2A CN111219566B (en) | 2020-03-11 | 2020-03-11 | Heat insulation structure, oil cylinder assembly and excavator |
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