CN114109964A - Hydraulic cylinder top cap and oil cylinder connecting structure - Google Patents
Hydraulic cylinder top cap and oil cylinder connecting structure Download PDFInfo
- Publication number
- CN114109964A CN114109964A CN202111403896.4A CN202111403896A CN114109964A CN 114109964 A CN114109964 A CN 114109964A CN 202111403896 A CN202111403896 A CN 202111403896A CN 114109964 A CN114109964 A CN 114109964A
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- Prior art keywords
- oil cylinder
- top cover
- block
- air bag
- moving
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- 238000007789 sealing Methods 0.000 claims abstract description 84
- 230000007246 mechanism Effects 0.000 claims description 34
- 238000009413 insulation Methods 0.000 claims description 17
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract description 136
- 239000010720 hydraulic oil Substances 0.000 abstract description 44
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 12
- 229920002379 silicone rubber Polymers 0.000 abstract description 12
- 239000007789 gas Substances 0.000 abstract description 9
- 239000003292 glue Substances 0.000 abstract description 9
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 7
- 239000001569 carbon dioxide Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 description 17
- 210000004907 gland Anatomy 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 238000005299 abrasion Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000011491 glass wool Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000012774 insulation material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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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
- F15B15/1433—End caps
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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
- F15B15/1438—Cylinder to end cap assemblies
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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
- F15B15/1438—Cylinder to end cap assemblies
- F15B15/1442—End cap sealings
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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
- F16L59/04—Arrangements using dry fillers, e.g. using slag wool which is added to the object to be insulated by pouring, spreading, spraying or the like
Abstract
The invention relates to the technical field of top cover and oil cylinder connecting structures, in particular to a hydraulic oil cylinder top cover and oil cylinder connecting structure which comprises an oil cylinder body, wherein an oil cylinder top cover body is arranged on the outer surface of the upper end of the oil cylinder body, inner hexagon screws which are uniformly distributed are arranged on the outer surface of the upper end of the oil cylinder top cover body, the oil cylinder body is fixedly connected with the oil cylinder top cover body through the inner hexagon screws, and a movable rod penetrates through the outer surface of the upper end of the oil cylinder top cover body and is connected with the oil cylinder top cover body in a movable sealing mode. According to the invention, the first connecting groove is arranged, when oil starts to enter the oil cylinder body, as the temperature of hydraulic oil is about seventy ℃, substances which are easy to expand when heated, such as carbon dioxide, air and other gases, are filled in the first air bag, and the first air bag is made of a silicon rubber material, so that the problem that threads are difficult to disassemble or the surfaces of joints are possibly damaged after the threads are disassembled when threads are loosened by using thread locking glue in the traditional method is avoided, and the overall practicability is improved.
Description
Technical Field
The invention relates to the technical field of top cover and oil cylinder connecting structures, in particular to a hydraulic oil cylinder top cover and oil cylinder connecting structure.
Background
The hydraulic oil cylinder is an actuating element in a hydraulic transmission system, is an energy conversion device for converting hydraulic energy into mechanical energy and is used for driving a working mechanism to do linear reciprocating motion or reciprocating swing, and generally comprises a cylinder barrel and a piston rod assembly, wherein the piston rod assembly comprises a piston and a piston rod, the piston is fixedly connected to the end part of the piston rod, the outer circumferential surface of the piston is in sliding fit with an inner cavity of the cylinder barrel, the inner cavity of the cylinder barrel is divided into a rod cavity and a rodless cavity by the piston, and oil is filled in one of the rod cavity and the rodless cavity to push the piston to drive the piston rod to move, so that the piston rod extends out of the cylinder barrel to drive the working mechanism.
The Chinese patent discloses a hydraulic oil cylinder, the patent application number is CN201610505246.3, which comprises a cylinder body, a piston gland and a piston rod gland, wherein the piston gland is connected with the piston through a screw; and a supporting guide ring and two piston rods are arranged between the cylinder body and the piston rods and are sealed by combination.
Although the above-mentioned patent can make the installation of each sealing element, change more convenient and faster, and can realize the automatic compensation after wearing and tearing, reduce the coefficient of friction between each component, guarantee the centering, the ability to resist the bias load is obviously strengthened, has avoided wearing and tearing and fish tail effectively, but its piston rod gland uses the threaded connection form with the connection structural form of the cylinder, gland and cylinder faying face use the O-ring to seal, use the end of the cylinder to position, the situation that the screw thread is not hard up after using many times, in order to prevent loosing, use the fixed lock glue of screw thread, but use the fixed lock glue of screw thread to damage after the cylinder internal sealing system damages, it is possible to damage the surface of screw thread or joint after difficult to dismantle, lead to the maintenance cost is big, lead to the customer to prefer to buy a new hydraulic cylinder to replace the hydraulic cylinder that has been damaged, but the purchase cycle limits the use of the apparatus again, the utility model has improved user's use cost, it is fixed to use screw hole and socket head cap screw simultaneously, damages the back at hydro-cylinder internal seal system, if can not in time discover, hydraulic oil can mix the area because the impurity that sealing washer wearing and tearing impurity and hydraulic oil itself contained gets into hydro-cylinder and hydro-cylinder top cap threaded connection department, can cause to connect difficult dismantlement or dismantle back damage screw thread and joint surface, reduces the life of top cap.
Therefore, the hydraulic oil cylinder top cover and oil cylinder connecting structure is provided.
Disclosure of Invention
The invention aims to provide a connecting structure of a top cover and an oil cylinder of a hydraulic oil cylinder, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a connecting structure of a hydraulic oil cylinder top cover and an oil cylinder comprises an oil cylinder body, wherein an oil cylinder top cover body is arranged on the outer surface of the upper end of the oil cylinder body, the outer surface of the upper end of the oil cylinder top cover body is provided with inner hexagon screws which are uniformly distributed, the oil cylinder body is fixedly connected with the oil cylinder top cover body through the inner hexagon screws, the outer surface of the upper end of the oil cylinder top cover body is connected with a movable rod in a penetrating and movable sealing way, the annular surface of the oil cylinder top cover body, which is contacted with the oil cylinder body, is provided with a first sealing ring close to the lower end, a second sealing ring is arranged on the annular outer surface of the oil cylinder top cover body, which is contacted with the oil cylinder body, close to the upper end of the first sealing ring, the annular outer surface of the oil cylinder top cover body, which is contacted with the oil cylinder body, is provided with a connecting mechanism close to the upper end of the second sealing ring, an alarm mechanism is arranged between the annular outer surface of the oil cylinder top cover body, which is in contact with the oil cylinder body, close to the second sealing ring and the connecting mechanism;
the connecting mechanism comprises a first connecting groove, a second connecting groove, a first magnet, a first moving groove, a first air bag, a connecting rod, a resisting block, a connecting block, a second magnet and a resetting mechanism, wherein the first connecting groove is annularly provided with the uniformly distributed second connecting groove, the inner surface of the second connecting groove far away from the first connecting groove is fixedly provided with the first magnet, the position of the inside of the oil cylinder top cover body corresponding to the first connecting groove is provided with the uniformly distributed first moving groove, the inner surface of one side of the first moving groove is fixedly provided with the first air bag, the middle position of the outer surface of one side of the first air bag is fixedly provided with the connecting rod, the outer surface of the left side of the connecting rod is fixedly provided with the resisting block, the position of the side surface of the first air bag close to the connecting rod is fixedly provided with the uniformly distributed connecting block, and the outer surface of one end of the connecting block is fixedly provided with the second magnet, and a reset mechanism is arranged in the middle of the inside of the first connecting groove.
When in use, the connecting structure form of the piston rod gland and the oil cylinder in the prior art adopts a threaded connection form, the joint surface of the gland and the oil cylinder is sealed by an O-shaped ring, the end part of the oil cylinder is used for positioning, the situation of thread loosening can occur after repeated use, in order to prevent loosening, thread locking glue is mostly adopted, or the joint part of the end surface is fixed by a processing threaded hole by an inner hexagon screw, so as to prevent rotation, but the methods are not easy to disassemble or can damage the surface of the thread or the joint part after disassembly after the sealing system in the oil cylinder is damaged, so that the maintenance cost is high, by arranging the first connecting groove, when oil starts to enter the oil in the oil cylinder body, because the temperature of hydraulic oil is about seventy degrees, substances which are easy to expand when heated, such as carbon dioxide, air and other gases, are arranged in the first air bag which is made of silicon rubber materials, and can bear the high temperature of four hundred degrees, the silicon rubber has good heat resistance and high support performance, can bear high temperature of four hundred degrees, the temperature of hydraulic oil is transmitted to the oil cylinder top cover body from the oil cylinder body or the movable rod and then transmitted to the first air bag through the oil cylinder top cover body, at the moment, the air in the first air bag is thermally expanded to drive the first air bag to expand, in the process that the first air bag is heated to expand, the expansion force of the first air bag enables the connecting block to be abutted against the inner wall of the first moving groove, meanwhile, the expansion force can push the abutting block to move towards the left side through the connecting rod, the abutting block moves to the first connecting groove from the first moving groove and continues to move towards the left side, as the expansion force of the first air bag always enables the connecting block to be abutted against the inner wall of the first connecting groove, when the connecting block moves to the position vertical to the second connecting groove, because the width of the second connecting groove is larger than that of the connecting block, the expansion force of the first air bag enables the connecting block to overcome the same polarity repulsion force between the first magnet and the second magnet to enter the second connecting groove, when the oil cylinder body internal sealing system is damaged, the first air bag contracts and the expansion force disappears, the same-polarity repulsion force between the first magnet and the second magnet pushes out the second magnet, the first air bag retracts to separate the oil cylinder body and the oil cylinder top cover body, and therefore the problem that the threads or the surface of a joint are possibly damaged after the threads or the joint are disassembled when the threads are loosened by using the thread fixing glue in the prior art is solved, improving the overall practicability.
Preferably, canceling release mechanical system includes first telescope tube, second telescope tube, first spring and reset block, the first telescope tube of medial surface fixed connection of first connecting groove, the inside swing joint second telescope tube of first telescope tube, the first spring of medial surface intermediate position fixed mounting of first connecting groove, first spring is located inside first telescope tube and the second telescope tube, the right side surface fixed mounting reset block of second telescope tube, the right-hand member and the reset block fixed connection of first spring.
When the connecting mechanism is used, although the oil cylinder body and the oil cylinder top cover body can be well fixed together, after the temperature is reduced, the first air bag contracts, the expansion force disappears, the like-polarity repulsion force between the first magnet and the second magnet pushes out the second magnet, and the first air bag retracts, but the first air bag is not easy to bring the original position and is not beneficial to the next connection and fixation work, improving the overall practicability.
Preferably, the sum of the maximum extension length of the first telescopic sleeve and the second telescopic sleeve and the thickness of the reset block is equal to the depth of the first connecting groove.
When the oil cylinder top cover is used, the sum of the maximum extending length of the first telescopic sleeve and the second telescopic sleeve and the thickness of the reset block is equal to the depth of the first connecting groove, so that the oil cylinder top cover ensures that the oil cylinder body and the oil cylinder top cover body can be mutually abutted when disassembly is needed after the first telescopic sleeve and the second telescopic sleeve are completely stretched after the elastic force of the first spring pushes the reset block and the reset block pushes the abutting block to move to the edge position of the first connecting groove in the process of moving the first telescopic sleeve and the second telescopic sleeve to the first connecting groove again.
Preferably, the alarm mechanism comprises a second moving groove, a heat insulation layer, a second air bag, a moving rod, a first switch contact piece, a fixed block, a second switch contact piece, a moving block, a second spring, a third moving groove and an alarm, wherein the heat insulation layer is fixedly arranged on the inner surface of the second moving groove, the second air bag is fixedly arranged on the inner surface of one end of the heat insulation layer, the moving rod is fixedly arranged on the outer surface of the left end of the second air bag, the first switch contact piece is fixedly arranged on the outer surface of the left side of the second air bag, which is close to the periphery of the moving rod, the fixed block is fixedly arranged on the inner side surface of the heat insulation layer, the second switch contact piece is fixedly arranged on the outer surface of the right side of the fixed block, which is close to the periphery of the moving rod, the moving rod penetrates through the fixed block, the moving rod is connected with the fixed block in a sliding manner, and the moving block is fixedly arranged on the outer surface of the left end of the moving rod, the right side outer surface of the moving block is fixedly provided with second springs which are uniformly distributed, the right end outer surface of each second spring is fixedly connected with the corresponding fixed block, a third moving groove is formed in the position, corresponding to the second moving groove, in the oil cylinder body, and an alarm is arranged at the position, close to the left side edge, of the upper end outer surface of the oil cylinder top cover body.
When the hydraulic oil cylinder is used, the hydraulic oil cylinder is fixed by using the threaded hole and the hexagon socket head cap screw, after a sealing system in the hydraulic oil cylinder is damaged, if the situation that the hydraulic oil can not be found in time, the hydraulic oil can carry impurities due to abrasion of the sealing ring and the impurities contained in the hydraulic oil can enter the threaded connection part of the hydraulic oil cylinder and the top cover of the hydraulic oil, the connection can not be easily disassembled or the surfaces of the threads and the connection part can be damaged after the disassembly, and the service life of the top cover is reduced. Such as carbon dioxide, air and other gases, the second air bag is made of silicon rubber materials, can bear high temperature of four hundred degrees, has good heat resistance and high support performance, is heated to expand to generate expansion force, moves to the left side in the second moving groove due to expansion until the second air bag moves to a fixed block to be contacted, the first switch contact and the second switch contact are electrically connected, an electric signal is transmitted to the alarm to give an alarm to remind an operator that the internal sealing system of the oil cylinder body is damaged, the operator can conveniently know whether the internal sealing system of the oil cylinder body normally works or not, and the problem that the internal sealing system of the oil cylinder cannot be timely found after being damaged to cause that hydraulic oil is mixed with impurities due to the abrasion of the sealing ring and the impurities contained in the hydraulic oil to enter the threaded joint of the oil cylinder and the oil cylinder top cover to cause the problem that the threads and the surface of the joint are not easy to be dismounted or damaged after being dismounted is caused, the service life of the oil cylinder top cover body is guaranteed, and the overall practicability is improved.
Preferably, a sealing plate is arranged on the inner side surface of the heat insulation layer, one end of the sealing plate penetrates through the fixing block and is fixedly connected with the moving block, and the side surface of the sealing plate and the side surface of the moving block are both abutted to the heat insulation layer.
When the sealing plate is used, the sealing plate is arranged, the second air bag pushes the moving rod to move towards the left side in the second moving groove in the process that the second air bag moves towards the left side in the second moving groove due to thermal expansion, the moving rod drives the moving block to move towards the left side, and the moving block drives the sealing plate to move towards the left side.
Preferably, the length of the sealing plate is greater than the distance between the second air bag and the fixed block, and the distance between the second air bag and the fixed block is equal to the length of the third moving groove.
When the oil cylinder top cover is used, the length of the sealing plate is larger than the distance between the second air bag and the fixed block, and the length of the sealing plate is larger than the distance that the movable block can drive the sealing plate to move towards the left side, so that the sealing plate and the movable block are in contact with and sealed with gaps between the second moving groove and the third moving groove in the process that the second air bag moves towards the left side, the hydraulic oil containing impurities is further prevented from entering the threaded connection part of the oil cylinder body and the oil cylinder top cover body, and the overall practicability is improved.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, by arranging the first connecting groove, the problem that the threads or the surfaces of the joints are difficult to disassemble or possibly damaged after disassembly when the threads are loosened by using thread fixing and locking glue in the traditional method is solved, and the overall practicability is improved.
2. The invention prevents the temperature of the oil cylinder body from influencing an alarm mechanism when the oil cylinder body normally works by arranging the heat insulation layer, the heat insulation layer is glass wool heat insulation material, when the sealing system in the oil cylinder is damaged and the first sealing ring and the second sealing ring are damaged, hydraulic oil with temperature enters the third moving groove through the first sealing ring and the second sealing ring, an electric signal is transmitted to the alarm to give an alarm to remind an operator that the sealing system in the oil cylinder body is damaged, the operator can conveniently know whether the sealing system in the oil cylinder body normally works, the problem that the sealing system in the oil cylinder is damaged and cannot be found in time is prevented, so that the hydraulic oil can carry impurities due to the abrasion of the sealing rings and the impurities contained in the hydraulic oil can enter the threaded joint of the oil cylinder and the oil cylinder top cover, and the problem that the connection is not easy to disassemble or the threads and the surface of the joint are damaged after the disassembly is caused, the service life of the oil cylinder top cover body is guaranteed, and the overall practicability is improved.
Drawings
FIG. 1 is a schematic view of the complete three-dimensional structure of the present invention;
FIG. 2 is a full elevation cross-sectional structural view of the present invention;
FIG. 3 is an enlarged view of the structure at A of the present invention;
FIG. 4 is an enlarged view of the structure of the present invention at B;
FIG. 5 is an enlarged view of the structure at C of the present invention;
fig. 6 is a front cross-sectional structural view of the alarm mechanism of the present invention.
In the figure: 1. an oil cylinder body; 2. a cylinder head cover body; 3. a socket head cap screw; 4. a movable rod; 5. a first seal ring; 6. a second seal ring; 7. a connecting mechanism; 71. a first connecting groove; 72. a second connecting groove; 73. a first magnet; 74. a first moving slot; 75. a first air bag; 76. a connecting rod; 77. a resisting block; 78. connecting blocks; 79. a second magnet; 710. a reset mechanism; 7101. a first telescopic sleeve; 7102. a second telescopic sleeve; 7103. a first spring; 7104. a reset block; 8. an alarm mechanism; 81. a second moving slot; 82. a thermal insulation layer; 83. a second air bag; 84. a travel bar; 85. a first switch contact; 86. a fixed block; 87. a second switch contact; 88. a moving block; 89. a second spring; 810. a third moving slot; 811. an alarm; 812. and (7) sealing the plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and 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 considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; 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.
Referring to fig. 1 to 6, the present invention provides a technical solution of a connection structure of a hydraulic cylinder top cover and a cylinder:
a connecting structure of a hydraulic cylinder top cover and an oil cylinder is disclosed, as shown in figures 1 to 4, and comprises an oil cylinder body 1, wherein an oil cylinder top cover body 2 is arranged on the outer surface of the upper end of the oil cylinder body 1, inner hexagon screws 3 which are uniformly distributed are arranged on the outer surface of the upper end of the oil cylinder top cover body 2, the oil cylinder body 1 is fixedly connected with the oil cylinder top cover body 2 through the inner hexagon screws 3, a movable rod 4 is movably and hermetically connected to the outer surface of the upper end of the oil cylinder top cover body 2 in a penetrating manner, a first sealing ring 5 is arranged at the position, close to the lower end, of the annular surface, in contact with the oil cylinder body 1, of the oil cylinder top cover body 2, a second sealing ring 6 is arranged at the upper end, close to the upper end of the second sealing ring 6, of the annular surface, in contact with the oil cylinder body 1, of the oil cylinder top cover body 2, is provided with a connecting mechanism 7, an alarm mechanism 8 is arranged between the annular outer surface of the oil cylinder top cover body 2, which is in contact with the oil cylinder body 1, and the second sealing ring 6 and the connecting mechanism 7;
the connecting mechanism 7 comprises a first connecting groove 71, a second connecting groove 72, a first magnet 73, a first moving groove 74, a first air bag 75, a connecting rod 76, a resisting block 77, a connecting block 78, a second magnet 79 and a reset mechanism 710, wherein the second connecting groove 72 which is uniformly distributed is annularly formed in the first connecting groove 71, the first magnet 73 is fixedly installed on the inner surface of the second connecting groove 72 far away from the first connecting groove 71, the first moving groove 74 which is uniformly distributed is formed in the position corresponding to the first connecting groove 71 in the cylinder top cover body 2, the first air bag 75 is fixedly installed on the inner surface of one side of the first moving groove 74, the connecting rod 76 is fixedly installed in the middle position of the outer surface of one side of the first air bag 75, the resisting block 77 is fixedly installed on the outer surface of the left side of the connecting rod 76, and the connecting blocks 78 which are uniformly distributed are fixedly installed on the position of the side surface of the first air bag 75 close to the connecting rod 76, the outer surface of one end of the connecting block 78 is fixedly provided with a second magnet 79, and the inner middle position of the first connecting groove 71 is provided with a reset mechanism 710.
When in use, in the prior art, the connecting structure form of the piston rod gland and the oil cylinder adopts a threaded connection form, the joint surface of the gland and the oil cylinder is sealed by an O-shaped ring, the end part of the oil cylinder is used for positioning, the situation of thread loosening can occur after repeated use, in order to prevent loosening, thread locking glue is mostly adopted, or the joint part of the end surface is fixed by a processing threaded hole by using an inner hexagon screw 3 to prevent rotation, but the methods are not easy to disassemble or can damage the surface of the thread or the joint part after disassembly after the sealing system in the oil cylinder is damaged, so that the maintenance cost is high, by arranging the first connecting groove 71, when oil starts to enter the oil in the oil cylinder body 1, as the temperature of hydraulic oil is about seventy degrees, substances which are easy to expand by heating, such as carbon dioxide, air and other gases are arranged in the first air bag 75, and the first air bag 75 is made of silicon rubber materials and can bear the high temperature of four hundred degrees, the silicon rubber has good heat resistance and high support performance, at the moment, the gas inside the first air bag 75 expands due to heating, and drives the first air bag 75 to expand, and in the process that the first air bag 75 expands due to heating, the expansion force of the first air bag 75 enables the connecting block 78 to be abutted against the inner wall of the first moving groove 74, and meanwhile, the expansion force can push the abutting block 77 to move towards the left side through the connecting rod 76, and move from the first moving groove 74 to the first connecting groove 71 and continue to move towards the left side, because the expansion force of the first air bag 75 always enables the connecting block 78 to be abutted against the inner wall of the first connecting groove 71, when the connecting block 78 moves to the position vertical to the second connecting groove 72, because the width of the second connecting groove 72 is larger than that of the connecting block 78, the expansion force of the first air bag 75 enables the connecting block 78 to overcome the same polarity repulsion force between the first magnet 73 and the second magnet 79 and enter the second connecting groove 72, when the sealing system in the oil cylinder body 1 is damaged, the first air bag 75 shrinks and the expansion force disappears, the same-polarity repulsion force between the first magnet 73 and the second magnet 79 pushes out the second magnet 79, the first air bag 75 retracts to separate the oil cylinder body 1 from the oil cylinder top cover body 2, and therefore the problem that the threads or the surface of a joint part are difficult to disassemble or possibly damaged after disassembly when the threads are loosened by using the thread locking glue in the prior art is solved, improving the overall practicability.
As a specific embodiment of the present invention, as shown in fig. 4, the reset mechanism 710 includes a first telescopic sleeve 7101, a second telescopic sleeve 7102, a first spring 7103 and a reset block 7104, wherein an inner side surface of the first connecting groove 71 is fixedly connected to the first telescopic sleeve 7101, the first telescopic sleeve 7101 is movably connected to the second telescopic sleeve 7102, the first spring 7103 is fixedly installed at a middle position of the inner side surface of the first connecting groove 71, the first spring 7103 is located inside the first telescopic sleeve 7101 and the second telescopic sleeve 7102, the reset block 7104 is fixedly installed on an outer surface of a right side of the second telescopic sleeve 7102, and a right end of the first spring 7103 is fixedly connected to the reset block 7104.
When the connecting mechanism 7 is used, although the oil cylinder body 1 and the oil cylinder top cover body 2 can be well fixed together, after the temperature is reduced, the first air bag 75 contracts, the expansion force disappears, the like-polarity repulsion force between the first magnet 73 and the second magnet 79 ejects the second magnet 79, the first air bag 75 is retracted, but the first air bag 75 cannot easily take the original position, and is not beneficial to the next connection and fixation work, through the arrangement of the first telescopic sleeve 7101, when the first air bag 75 is heated and expanded, the expansion force enables the abutting block 77 to overcome the elasticity of the first spring 7103 to move from the first moving groove 74 to the first connecting groove 71, and when the temperature is reduced, the first air bag 75 contracts, the expansion force disappears, and the like-polarity repulsion force between the first magnet 73 and the second magnet 79 ejects the second magnet 79, the elastic force of the first spring 7103 pushes the reset block 7104, the reset block 7104 pushes the abutting block 77 to move to the first connecting groove 71 again, the next connection and fixing work is facilitated, and the overall practicability is improved.
As a specific embodiment of the present invention, as shown in fig. 4, the sum of the maximum extension length of the first telescopic sleeve 7101 and the second telescopic sleeve 7102 and the thickness of the reset block 7104 is equal to the depth of the first connecting groove 71.
When the oil cylinder is used, the sum of the maximum extension length of the first telescopic sleeve 7101 and the second telescopic sleeve 7102 and the thickness of the reset block 7104 is equal to the depth of the first connecting groove 71, so that in the process that the elastic force of the first spring 7103 pushes the reset block 7104 and the reset block 7104 pushes the abutting block 77 to move to the first connecting groove 71 again, after the first telescopic sleeve 7101 and the second telescopic sleeve 7102 are completely stretched by the elastic force of the first spring 7103, the elastic force of the first spring 7103 just pushes the reset block 7104 to move to the edge position of the first connecting groove 71, and the reset block 7104 pushes the abutting block 77 just to move to the edge position of the first connecting groove 71, so that the oil cylinder body 1 and the oil cylinder top cover body 2 can abut against each other when disassembly is needed, the disassembly work is facilitated, and the overall practicability is improved.
As a specific embodiment of the present invention, as shown in fig. 2 and 6, the alarm mechanism 8 includes a second moving groove 81, a heat insulating layer 82, a second air bag 83, a moving rod 84, a first switch contact 85, a fixed block 86, a second switch contact 87, a moving block 88, a second spring 89, a third moving groove 810 and an alarm 811, the heat insulating layer 82 is fixedly installed on an inner surface of the second moving groove 81, the second air bag 83 is fixedly installed on an inner surface of one end of the heat insulating layer 82, the moving rod 84 is fixedly installed on an outer surface of a left end of the second air bag 83, the first switch contact 85 is fixedly installed on an outer surface of a left side of the second air bag 83 near the periphery of the moving rod 84, the fixed block 86 is fixedly installed on an inner surface of the heat insulating layer 82 near a left edge, the second switch contact 87 is fixedly installed on an outer surface of a right side of the fixed block 86 near the periphery of the moving rod 84, the movable rod 84 penetrates through the fixed block 86, the movable rod 84 is connected with the fixed block 86 in a sliding mode, the movable block 88 is fixedly installed on the outer surface of the left end of the movable rod 84, the second springs 89 which are uniformly distributed are fixedly installed on the outer surface of the right side of the movable block 88, the outer surface of the right end of each second spring 89 is fixedly connected with the fixed block 86, a third movable groove 810 is formed in the position, corresponding to the second movable groove 81, in the cylinder body 1, and an alarm 811 is arranged on the position, close to the left edge, of the outer surface of the upper end of the cylinder top cover body 2.
When the hydraulic cylinder is used, the hydraulic cylinder is fixed by using the threaded hole and the hexagon socket head cap screw 3, after a sealing system in the hydraulic cylinder is damaged, if the situation that the hydraulic oil cannot be found in time, the hydraulic oil can be mixed with impurities due to abrasion of a sealing ring and the impurities contained in the hydraulic oil enter the threaded connection part of the hydraulic cylinder and the top cover of the hydraulic cylinder, so that the connection is difficult to disassemble or the surfaces of the threads and the joint part are damaged after the disassembly, and the service life of the top cover is reduced, the invention prevents the temperature of the hydraulic cylinder body 1 from influencing an alarm mechanism 8 when the hydraulic cylinder body 1 normally works by arranging the heat-insulating layer 82, wherein the heat-insulating layer 82 is made of glass wool heat-insulating materials, when the sealing system in the hydraulic cylinder is damaged and the first sealing ring 5 and the second sealing ring 6 are damaged, the hydraulic oil with the temperature enters the third moving groove 810 through the first sealing ring 5 and the second sealing ring 6, at the moment, the temperature is transferred from the moving block 88 to the second air bag 83, and substances which are easy to expand when the second air bag 83 are heated, such as carbon dioxide, air and other gases, the second air bag 83 is made of silicon rubber materials, can bear high temperature of four hundred degrees, the heat resistance of the silicon rubber is good, meanwhile, the supporting performance is high, the second air bag 83 expands when being heated to generate expansion force, the second air bag 83 moves towards the left side in the second moving groove 81 due to expansion until moving to the fixed block 86 to be contacted, at the moment, the first switch contact piece 85 is electrically connected with the second switch contact piece 87, an electric signal is transmitted to the alarm 811 to give an alarm to remind an operator that the internal sealing system of the oil cylinder body 1 is damaged, the operator can conveniently know whether the internal sealing system of the oil cylinder body 1 normally works, the problem that the internal sealing system of the oil cylinder cannot be found in time after being damaged to cause that the hydraulic oil can be mixed with impurities due to the abrasion of the sealing ring and the impurities contained in the hydraulic oil enter the threaded connection part of the oil cylinder and the oil cylinder top cover is solved, and the surfaces of the threads and the joints are damaged after being difficult to be dismantled, guarantee the life of hydro-cylinder top cap body 2, improve the practicality of totality.
As a specific embodiment of the present invention, as shown in fig. 6, a sealing plate 812 is provided on an inner side surface of the heat insulating layer 82, one end of the sealing plate 812 penetrates through the fixed block 86 and is fixedly connected to the moving block 88, and both a side surface of the sealing plate 812 and a side surface of the moving block 88 contact the heat insulating layer 82.
In use, the sealing plate 812 is provided, so that when the second bladder 83 is expanded by heat and moves to the left in the second moving groove 81, the second air cell 83 pushes the moving rod 84 to move to the left side in the second moving groove 81, the moving rod 84 drives the moving block 88 to move to the left side, the moving block 88 drives the sealing plate 812 to move to the left side, since the side surfaces of the sealing plate 812 and the side surfaces of the moving block 88 are in contact with the insulating layer 82, in the process that closing plate 812 removed to the left side, closing plate 812 contacts sealedly with second shifting chute 81, third shifting chute 810 all the time, prevents that the hydraulic oil that contains impurity from the clearance between second shifting chute 81 and the third shifting chute 810, gets into hydro- cylinder body 1 and 2 threaded connection departments of hydro-cylinder top cap body, causes to connect the difficult problem emergence that damages screw thread and joint surface after dismantling, improves the practicality of totality.
As a specific embodiment of the present invention, as shown in fig. 6, the sealing plate 812 has a length greater than the distance between the second air cell 83 and the fixed block 86, and the distance between the second air cell 83 and the fixed block 86 is equal to the length of the third moving groove 810.
When the oil cylinder top cover is used, the length of the sealing plate 812 is larger than the distance between the second air bag 83 and the fixed block 86, and the length of the sealing plate 812 is larger than the distance that the moving block 88 can drive the sealing plate 812 to move towards the left, so that the sealing plate 812, the moving block 88 and the gaps between the second moving groove 81 and the third moving groove 810 are in contact sealing in the process that the second air bag 83 moves towards the left, the hydraulic oil containing impurities cannot enter the threaded connection part between the oil cylinder body 1 and the oil cylinder top cover body 2, and the overall practicability is improved.
The working principle is as follows: when oil starts to enter the oil cylinder body 1, because the temperature of the hydraulic oil is about seventy degrees, substances which are easy to expand when heated, such as carbon dioxide, air and other gases, are filled in the first air bag 75, the first air bag 75 is made of a silicon rubber material and can bear four hundred degrees of high temperature, the heat resistance of the silicon rubber is good, the support performance is high, and the high temperature of four hundred degrees of high can be borne, the temperature of the hydraulic oil is transmitted to the oil cylinder top cover body 2 from the oil cylinder body 1 or the movable rod 4, the temperature of the hydraulic oil transmitted to the first air bag 75 through the oil cylinder top cover body 2 is transmitted to the oil cylinder top cover body 2 from the oil cylinder body 1 or the movable rod 4, the gas in the first air bag 75 is transmitted to the first air bag 75 through the oil cylinder top cover body 2, the first air bag 75 is expanded when heated, the first air bag 75 is expanded, the expansion force of the first air bag 75 makes the connecting block 78 abut against the inner wall of the first moving groove 74, meanwhile, the expansion force pushes the abutting block 77 to move to the left through the connecting rod 76, the abutting block moves from the first moving groove 74 to the first connecting groove 71 and continues to move to the left, the connecting block 78 is abutted against the inner wall of the first connecting groove 71 all the time due to the expansion force of the first air bag 75, when the connecting block 78 moves to a position perpendicular to the second connecting groove 72, the connecting block 78 enters the second connecting groove 72 by overcoming the same polarity repulsive force between the first magnet 73 and the second magnet 79 due to the expansion force of the first air bag 75 because the width of the second connecting groove 72 is larger than the width of the connecting block 78, the first air bag 75 is always in an expansion state due to the existence of hydraulic pressure and temperature during work, the connecting block 78 is fixed inside the second connecting groove 72 all the time, the oil cylinder body 1 and the oil cylinder top cover body 2 are fixed together by the first air bag 75 and the connecting block 78, and the joint surface of the oil cylinder top cover body 2 and the oil cylinder body 1 is prevented from being sealed by an O-ring, when the sealing system in the oil cylinder body 1 is damaged, the first air bag 75 contracts and the expansion force disappears, the same-polarity repulsion force between the first magnet 73 and the second magnet 79 pushes out the second magnet 79, the first air bag 75 retracts to separate the oil cylinder body 1 from the oil cylinder top cover body 2, so that the problem that the threads are not easy to disassemble or the surfaces of the joints are possibly damaged after the threads are disassembled when the threads are loosened by using thread locking glue in the prior art is solved, the heat insulation layer 82 is arranged to prevent the temperature of the oil cylinder body 1 from influencing the alarm mechanism 8 when the oil cylinder body 1 normally works, the heat insulation layer 82 is made of glass wool heat insulation material, when the sealing system in the oil cylinder is damaged, and the first sealing ring 5 and the second sealing ring 6 are damaged, hydraulic oil with temperature enters the third moving groove 810 through the first sealing ring 5 and the second sealing ring 6, at this time, the temperature is transferred from the moving block 88 to the second air bag 83, substances which are easy to expand when heated, such as carbon dioxide, air and other gases, are filled in the second air bag 83, the second air bag 83 is made of silicon rubber materials, can bear high temperature of four hundred degrees, the heat resistance performance and the support performance of the silicon rubber are good, the temperature of the hydraulic oil is transferred from the oil cylinder body 1 or the movable rod 4 to the oil cylinder top cover body 2, the temperature of the hydraulic oil transferred to the first air bag 75 through the oil cylinder top cover body 2 is transferred from the oil cylinder body 1 or the movable rod 4 to the oil cylinder top cover body 2, the hydraulic oil is transferred to the first air bag 75 through the oil cylinder top cover body 2, the second air bag 83 expands when heated to generate an expansion force, the second air bag 83 moves to the left side in the second moving groove 81 due to expansion until the second air bag moves to be contacted with the fixed block 86, first switch contact 85 and second switch contact 87 electrical property switch-on this moment, signal of telecommunication transmits to alarm 811 and gives an alarm, remind operating personnel 1 inside seal system of hydro-cylinder body to have damaged, make things convenient for the staff to know whether normal work of 1 inside seal system of hydro-cylinder body, can not in time discover after preventing that hydro-cylinder inside seal system from damaging, lead to hydraulic oil can mix the area because the impurity that sealing washer wearing and tearing impurity and hydraulic oil itself contained gets into hydro-cylinder and hydro-cylinder top cap threaded connection department, cause the problem that connects damage screw thread and joint surface after difficult dismantlement or dismantlement to take place, guarantee the life of hydro-cylinder top cap body 2, improve the practicality of totality.
The electric elements in the document are electrically connected with an external main controller and 220V mains supply through a transformer, the main controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased, so that the product is more matched with and accords with the technical scheme of the invention, the product model is a technical scheme of the optimal application of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is familiar to the technical personnel in the field, so that the technical scheme provided by the invention can clearly obtain the corresponding use effect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a hydraulic cylinder top cap and hydro-cylinder connection structure, includes hydro-cylinder body (1), its characterized in that: the outer surface of the upper end of the oil cylinder body (1) is provided with an oil cylinder top cover body (2), the outer surface of the upper end of the oil cylinder top cover body (2) is provided with inner hexagon screws (3) which are uniformly distributed, the oil cylinder body (1) and the oil cylinder top cover body (2) are fixedly connected through the inner hexagon screws (3), the outer surface of the upper end of the oil cylinder top cover body (2) is connected with a movable rod (4) in a penetrating manner in a movable sealing manner, a first sealing ring (5) is arranged on the annular surface, in contact with the oil cylinder body (1), of the oil cylinder top cover body (2), a second sealing ring (6) is arranged on the annular surface, in contact with the oil cylinder body (1), of the oil cylinder top cover body, a connecting mechanism (7) is arranged on the annular surface, in contact with the oil cylinder body (1), of the oil cylinder top cover body, and is close to the upper end of the second sealing ring (6), an alarm mechanism (8) is arranged between the annular outer surface of the oil cylinder top cover body (2) contacted with the oil cylinder body (1), which is close to the second sealing ring (6) and the connecting mechanism (7);
the connecting mechanism (7) comprises a first connecting groove (71), a second connecting groove (72), a first magnet (73), a first moving groove (74), a first air bag (75), a connecting rod (76), a supporting block (77), a connecting block (78), a second magnet (79) and a resetting mechanism (710), wherein the second connecting groove (72) which is uniformly distributed is annularly formed in the first connecting groove (71), the first magnet (73) is fixedly installed on the inner surface, far away from the first connecting groove (71), of the second connecting groove (72), the first moving groove (74) which is uniformly distributed is formed in the position, corresponding to the first connecting groove (71), in the cylinder top cover body (2), the first air bag (75) is fixedly installed on the inner surface of one side of the first moving groove (74), the connecting rod (76) is fixedly installed in the middle position of the outer surface of one side of the first air bag (75), the outer surface of the left side of the connecting rod (76) is fixedly provided with a resisting block (77), the side surface of the first air bag (75) is fixedly provided with evenly distributed connecting blocks (78) at positions close to the connecting rod (76), the outer surface of one end of each connecting block (78) is fixedly provided with a second magnet (79), and the middle position in the first connecting groove (71) is provided with a reset mechanism (710).
2. The hydraulic cylinder head cover and cylinder connecting structure according to claim 1, characterized in that: the reset mechanism (710) comprises a first telescopic sleeve (7101), a second telescopic sleeve (7102), a first spring (7103) and a reset block (7104), the first telescopic sleeve (7101) is fixedly connected with the inner side face of the first connecting groove (71), the second telescopic sleeve (7102) is movably connected with the inner side of the first telescopic sleeve (7101), the first spring (7103) is fixedly installed at the middle position of the inner side face of the first connecting groove (71), the first spring (7103) is located inside the first telescopic sleeve (7101) and the second telescopic sleeve (7102), the reset block (7104) is fixedly installed on the outer surface of the right side of the second telescopic sleeve (7102), and the right end of the first spring (7103) is fixedly connected with the reset block (7104).
3. The hydraulic cylinder head cover and cylinder connecting structure according to claim 2, characterized in that: the sum of the maximum extension length of the first telescopic sleeve (7101) and the second telescopic sleeve (7102) and the thickness of the reset block (7104) is equal to the depth of the first connecting groove (71).
4. The hydraulic cylinder head cover and cylinder connecting structure according to claim 1, characterized in that: the alarm mechanism (8) comprises a second moving groove (81), a heat insulation layer (82), a second air bag (83), a moving rod (84), a first switch contact piece (85), a fixed block (86), a second switch contact piece (87), a moving block (88), a second spring (89), a third moving groove (810) and an alarm (811), wherein the heat insulation layer (82) is fixedly installed on the inner surface of the second moving groove (81), the second air bag (83) is fixedly installed on the inner surface of one end of the heat insulation layer (82), the moving rod (84) is fixedly installed on the outer surface of the left end of the second air bag (83), the first switch contact piece (85) is fixedly installed on the periphery of the moving rod (84) and close to the outer surface of the left side of the second air bag (83), the fixed block (86) is fixedly installed on the inner side of the heat insulation layer (82) close to the left side edge, the second switch contact piece (87) is fixedly installed on the periphery of the moving rod (84) and close to the outer surface of the right side of the fixed block (86), the oil cylinder is characterized in that the moving rod (84) penetrates through the fixed block (86), the moving rod (84) is connected with the fixed block (86) in a sliding mode, the moving block (88) is fixedly installed on the outer surface of the left end of the moving rod (84), the second springs (89) which are uniformly distributed are fixedly installed on the outer surface of the right side of the moving block (88), the outer surface of the right end of each second spring (89) is fixedly connected with the fixed block (86), a third moving groove (810) is formed in the position, corresponding to the second moving groove (81), in the oil cylinder body (1), and an alarm (811) is arranged on the outer surface of the upper end of the oil cylinder top cover body (2) close to the edge of the left side.
5. The hydraulic cylinder head cover and cylinder connecting structure according to claim 4, characterized in that: and a sealing plate (812) is arranged on the inner side surface of the heat insulation layer (82), one end of the sealing plate (812) penetrates through the fixing block (86) and is fixedly connected with the moving block (88), and the side surface of the sealing plate (812) and the side surface of the moving block (88) are both abutted to the heat insulation layer (82).
6. The hydraulic cylinder head cover and cylinder connecting structure according to any one of claims 4 and 5, characterized in that: the length of the sealing plate (812) is greater than the distance between the second air bag (83) and the fixed block (86), and the distance between the second air bag (83) and the fixed block (86) is equal to the length of the third moving groove (810).
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| CN202111403896.4A CN114109964A (en) | 2021-11-24 | 2021-11-24 | Hydraulic cylinder top cap and oil cylinder connecting structure |
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| CN114838221A (en) * | 2022-03-11 | 2022-08-02 | 江苏中安建设集团有限公司 | Quick pipeline connecting device for installation of heating and ventilation equipment |
| CN115263858A (en) * | 2022-09-23 | 2022-11-01 | 烟台中宇航空液压有限公司 | Electro-hydraulic servo force increasing cylinder |
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