CN114526300A - Unidirectional automatic pneumatic system braking device - Google Patents
Unidirectional automatic pneumatic system braking device Download PDFInfo
- Publication number
- CN114526300A CN114526300A CN202210175569.6A CN202210175569A CN114526300A CN 114526300 A CN114526300 A CN 114526300A CN 202210175569 A CN202210175569 A CN 202210175569A CN 114526300 A CN114526300 A CN 114526300A
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- cylinder
- air
- pneumatic system
- reversing valve
- pressure
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- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 230000009471 action Effects 0.000 claims abstract description 17
- 238000005096 rolling process Methods 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000003921 oil Substances 0.000 claims description 13
- 230000033001 locomotion Effects 0.000 claims description 7
- 239000010687 lubricating oil Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 230000006386 memory function Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 230000007547 defect Effects 0.000 description 7
- 230000006870 function Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
Images
Classifications
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
- F15B13/0446—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors with moving coil, e.g. voice coil
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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
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
- F15B21/0423—Cooling
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/048—Arrangements for compressed air preparation, e.g. comprising air driers, air condensers, filters, lubricators or pressure regulators
-
- 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
- F15B2015/1495—Characterised by the construction of the motor unit of the straight-cylinder type with screw mechanism attached to the piston
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/02—Fluid-pressure mechanisms
Abstract
The invention discloses a unidirectional automatic pneumatic system braking device which comprises a braking executing mechanism, a pneumatic system and a cylinder. The right side of the brake actuating mechanism adopts a bolt type ball, is connected with the cylinder rod of the air cylinder through a rolling seat and an adapter, and is locked by a locking nut to prevent looseness. The two-position five-way reversing valve is connected with the air cylinder and electrically connected with a controller in the pneumatic system. When the two-position five-way reversing valve is electrified at the left position, the cylinder extends out under the action of pneumatic pressure, and the bolt type ball extends out under the action of mechanical connection and is in contact with the controlled object, so that the controlled object stays at the position and cannot pass through; when the right position of the two-position five-way reversing valve is electrified, the cylinder retracts under the action of pneumatic pressure, and the bolt type ball also retracts under the action of mechanical connection to be separated from the controlled object, so that the controlled object can freely pass in the direction.
Description
Technical Field
The invention relates to the technical field of bench test braking, in particular to a pneumatic braking system, a braking device and the technical field of bench test automobile hubs.
Background
In the bench test process, a braking and protecting function is needed for controlling the unidirectional movement of the bench equipment and playing a role in limiting and protecting.
Similar braking and protecting devices have the following defects that some devices depend on manual mechanical operation, the operation is difficult, and the labor cost is high; some selected executing mechanisms have defects in right mechanical design structures and small output force; some systems lack a power-off protection device and cannot ensure that the equipment still keeps the state of a controlled object under the condition of power failure; and the hydraulic system selected for use has the defects of large occupied space of equipment, high noise and high cost.
Disclosure of Invention
The invention aims to provide a unidirectional automatic pneumatic system braking device which can act in the vertical direction or the horizontal direction, is used for controlling unidirectional movement of rack equipment and can also play a role in limiting and protecting.
The embodiment of the invention is realized by the following steps:
the utility model provides a unilateral automatic pneumatic system arresting gear, unilateral automatic pneumatic system arresting gear mainly used bench test includes:
the right side of the brake actuating mechanism adopts a bolt type ball, the brake actuating mechanism is connected with the cylinder rod of the air cylinder through a rolling seat and an adapter, the locking position is locked by a locking nut to prevent loosening, and the rolling seat moves back and forth on the linear guide rail.
And the brake cylinder is mainly used for providing reciprocating power.
The pneumatic system is used for supplementing pneumatic pressure to the air cylinder, a reversing control loop of the two-position five-way electromagnetic reversing valve is adopted, the dual-electric control valve is ensured to have a memory function, and the air cylinder can still be kept in the original working state when the electromagnetic valve is powered off; the two-position five-way reversing valve is electrified at the left position, the two-position five-way reversing valve works at the left position, and the cylinder extends out under the action of pneumatic pressure; when the right position of the two-position five-way reversing valve is electrified, the two-position five-way reversing valve works at the right position, and the air cylinder retracts under the action of pneumatic pressure.
The inventor finds that: similar braking and protecting devices have the following defects that some devices rely on manual mechanical operation and operate a cylinder by inching and reversing, so that misoperation is easy to occur, the operation is complex and the labor cost is high; some actuating mechanism right side mechanical design structures of selecting for use have the defect, and the actuating mechanism right side chooses square slider for use, according to the definition of frictional force, and the power between two objects that contact is sliding friction, and frictional force is great this moment, and the cylinder needs great output power. Meanwhile, if the system is lack of a power-off protection device, the equipment cannot be guaranteed to still keep the extending or retracting state of the air cylinder under the condition of power-off, and the equipment has great potential safety hazard. Some equipment adopts hydraulic system to provide cylinder round trip power, and hydraulic system itself occupation space is great, and equipment noise is great, and the working property is susceptible to the influence of temperature variation.
Therefore, the inventor designs the unidirectional automatic pneumatic system braking device, compared with a hydraulic system, the pneumatic system is adopted, so that the unidirectional automatic pneumatic system braking device has the advantages of convenient air source, no pollution, capability of centralized air supply and remote conveying, good adaptability to the working environment, rapid pneumatic response and convenient adjustment, automatic control can be realized by utilizing an air pressure signal, and the pneumatic element has the advantages of simple structure, low cost and long service life; the double-electric-control two-position five-way electromagnetic reversing valve is added into the system, so that manual intervention is reduced, the automation capacity is improved, the double-electric-control valve is ensured to have a memory function, the air cylinder can still be kept in the original working state when the electromagnetic valve is powered off, and the stability of equipment is ensured. The bolt type ball is adopted on the right side of the brake actuating mechanism, and compared with a square sliding block, sliding friction is changed into rolling friction by using the bolt type ball, so that friction force is reduced, power requirements are reduced, and equipment cost is reduced to a certain extent.
In one embodiment of the invention:
when the two-position five-way reversing valve is electrified at the left position, the two-position five-way reversing valve works at the left position, and the air cylinder extends out under the action of pneumatic pressure.
When the right position of the two-position five-way reversing valve is electrified, the two-position five-way reversing valve works at the right position, and the air cylinder retracts under the action of pneumatic pressure.
In one embodiment of the invention:
the right side of the brake actuating mechanism adopts bolt type balls, and sliding friction is changed into rolling friction by using the bolt type balls, so that friction force is reduced.
In one embodiment of the invention:
further comprising:
the air cylinder mounting base fixes the air cylinder on the mounting base by means of the mounting base fixing bolt.
The cylinder mounting seat and the linear guide rail are fixed respectively by the aid of the cylinder mounting seat fixing bolt and the linear guide rail fixing screw, and the linear guide rail is locked by the linear guide rail locking screw on the side face.
In one embodiment of the invention:
further comprising:
the outer cover is fixed outside the brake actuating mechanism through the outer cover mounting column, and the outer cover plays a role in protecting and beautifying the appearance of the brake actuating mechanism.
In one embodiment of the invention:
the cylinder is connected with a two-position five-way reversing valve through a cylinder port A and a cylinder port B.
In one embodiment of the invention:
further comprising:
an oil atomizer: the oil atomizer atomizes lubricating oil and injects the lubricating oil into air flow, and the lubricating oil flows into the two-position five-way reversing valve and the cylinder along with compressed air, so that the purpose of lubrication is achieved.
The pressure reducing valve is used for reducing the inlet pressure to a certain required outlet pressure through regulation, and the outlet pressure is automatically kept stable by means of the energy of the medium, so that the cylinder is ensured not to fluctuate in the reciprocating motion process.
The air filter separates liquid water and liquid oil drops in the compressed air, filters out dust and solid impurities in the air, and cannot remove gaseous water and oil.
And the air dryer is used for drying moisture in high-pressure air, so that the two-position five-way reversing valve and the air cylinder are prevented from being corroded due to moisture in the air.
The air tank is mainly used for stabilizing air pressure and storing air, has a certain energy-saving effect and also has a certain cooling and filtering effect.
The water diversion drainer is used for separating the water in the compressed air.
A cooler for reducing a temperature increase of the compressed air due to the air compression, the pressure increase, and the like.
An air compressor, which is used primarily to deliver and boost the pressure of the gas, is used to provide compressed air to the pneumatic system.
In one embodiment of the invention:
the adapter is T type structure, is connected it with the roll seat through structural design, and the adapter opposite side is connected with cylinder pole through the screw thread.
In one embodiment of the invention:
the bolt type ball is fixedly connected with the hexagonal thin nut through threads, and the ball can rotate freely.
In one embodiment of the invention:
when the two-position five-way reversing valve is electrified at the left position, the two-position five-way reversing valve works at the left position, and the air cylinder extends out under the action of pneumatic pressure.
When the right position of the two-position five-way reversing valve is electrified, the two-position five-way reversing valve works at the right position, and the cylinder retracts under the action of pneumatic pressure.
The technical scheme of the invention at least has the following beneficial effects:
the unidirectional automatic pneumatic system braking device provided by the invention can act in the vertical direction or the horizontal direction, is used for controlling unidirectional movement of the rack equipment, and can also play a role in limiting and protecting.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of the overall structure of a brake actuator of the braking apparatus of the one-way automatic pneumatic system of the present invention;
FIG. 2 is a schematic diagram of a pneumatic braking system of the unidirectional automatic pneumatic system braking device of the present invention.
Description of reference numerals:
1-cylinder mounting seat, 2-cylinder mounting seat fixing bolt, 3-supporting base fixing bolt, 4-cylinder, 5-outer cover mounting column, 6-locking nut, 7-adapter, 8-rolling seat, 9-linear guide rail fixing bolt, 10-linear guide rail locking bolt, 11-bolt type ball, 12-hexagonal thin nut, 13-linear guide rail, 14-supporting base, 15-outer cover, 16-cylinder A port, 17-cylinder B port, 18-two-position five-way reversing valve, 19-oil atomizer, 20-pressure gauge C, 21-pressure reducing valve, 22-air filter, 23-air dryer, 24-pressure gauge D, 25-air tank, 26-water diversion drainer, 27-cooler, 28-air source adjusting device, 29-air compressor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "inside", "below", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or 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.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
Example 1
Please refer to fig. 1, this embodiment provides a unidirectional automatic pneumatic system braking device, which can act in the vertical direction or the horizontal direction to control the unidirectional movement of the gantry apparatus and also can perform the function of limiting and protecting.
Fig. 1 shows a specific structure of a brake actuator 29 of the unidirectional automatic pneumatic system brake device provided by the embodiment, fig. 1 shows a case that the brake actuator 29 is horizontally installed, and includes a rolling seat 8, a linear guide rail 13 and a cylinder 4, fig. 1 shows a reciprocating motion of the rolling seat of the brake actuator 29 in a horizontal direction under the assistance of the linear guide rail 13, and the linear guide rail 13 is locked by a linear guide rail locking screw 10 and a linear guide rail fixing screw 9 to prevent the linear guide rail 13 from loosening and deviating.
The cylinder 4 carries out threaded connection through adapter 7 and roll seat 8, and lock nut 6 is fixed in the left side of adapter 7 in order to ensure that adapter 7 can not take place not hard up, and cylinder 4 fixes on supporting base 14 under the effect of cylinder mount pad 1, with the help of dead cylinder 4 of cylinder mount pad fixing bolt 2 lock, is provided with on the supporting base 14 and supports base fixing bolt 3 and be used for fixed stay base 14.
The brake actuating mechanism 29 is provided with an outer cover 15 for protecting and beautifying the appearance of the brake actuating structure, an outer cover mounting column 5 is arranged on the supporting base 14, an internal thread is arranged in the middle of the outer cover mounting column 5, and the outer cover 15 and the outer cover mounting column 5 are connected through a bolt.
The right side of the brake actuator 29 comprises a bolt-type ball 11 and a hexagonal thin nut 12, the bolt-type ball 11 and the hexagonal thin nut 12 are connected and fixed on the right side of the brake actuator 29 through threads, and the bolt-type ball 11 also extends out under the action of the cylinder and is in contact with the controlled object, so that the controlled object stays at the position and cannot pass through the position;
referring to fig. 2, fig. 2 shows that the two-position five-way reversing valve 18 is connected with the cylinder 4 through the cylinder port a and the cylinder port B, and the two-position five-way reversing valve is electrically connected with the controller 30 of the whole equipment. The controller 30 controls the working state of the two-position five-way reversing valve 18 by sending signal commands. It should be noted that, in this embodiment, the two-position five-way reversing valve 18 is connected to the controller 30 through a wire harness, and in other specific embodiment modes, the two-position five-way reversing valve 18 may be connected to the controller 30 through a wireless signal. In this particular embodiment, the two-position five-way selector valve 18 is a proportional solenoid valve.
The two-position, five-way directional control valve 18 has, by control of the controller 30:
when the two-position five-way reversing valve 18 is electrified on the left, the two-position five-way reversing valve 18 works on the left, the cylinder 4 extends out under the action of pneumatic pressure, and the bolt type ball 11 extends out under the action of the cylinder 4.
When the right position of the two-position five-way reversing valve 18 is electrified, the two-position five-way reversing valve 18 works at the right position, the cylinder 4 retracts under the action of pneumatic pressure, and the bolt type ball 11 retracts under the action of the cylinder 4.
In this embodiment, when the two-position five-way reversing valve 18 is energized to the left, the piston rod of the cylinder 4 extends to drive the brake actuator 29 to extend, the bolt-type ball 11 contacts with the controlled object to realize braking, and when the two-position five-way reversing valve 18 is energized to the right, the piston rod of the cylinder 4 retracts to release the driving of the brake actuator, the brake actuator 29 retracts, and the bolt-type ball 11 is disengaged from the controlled object to realize braking release.
Fig. 2 also includes an oil atomizer 19, the oil atomizer 19 atomizes the lubricating oil and injects it into the air flow, and flows into the two-position five-way reversing valve 18 and the cylinder 4 with the compressed air to achieve the purpose of lubrication, the pressure reducing valve 21 reduces the inlet pressure to a certain required outlet pressure by adjusting, and makes the outlet pressure automatically keep stable by the energy of the medium, and ensures that the cylinder 4 has no fluctuation in the reciprocating process, the air filter 22 separates the liquid water and liquid oil drops in the compressed air, and filters out the dust and solid impurities in the air, but cannot remove the gaseous water and oil, the air dryer 23 dries the water in the high-pressure air, and avoids the corrosion of the two-position five-way reversing valve 18 and the cylinder 4 due to the water contained in the air, the air tank 25 is used for stabilizing the air pressure and storing the air, and has certain energy-saving effect, and also plays a certain role of cooling and filtering, the water separator/drainer 26 is used to separate water from the compressed air, the cooler 27 is used to reduce the temperature rise of the compressed air due to the pressure increase of the compressed air, and the air compressor 28 is mainly used to deliver gas and increase the pressure of the gas for the cylinder 4 to supply the compressed air.
In the embodiment, a pressure gauge C20 and a pressure gauge D24 are arranged in the pneumatic system and used for observing the pressure fluctuation situation after the pressure reducing valve 21 and the pressure fluctuation situation after the air tank 25 respectively.
It should be noted that, in this embodiment, since the two-position five-way reversing valve 18 is an electromagnetic proportional valve, the electric signal command provided by the controller 30 to the two-position five-way reversing valve 18 may also make the two-position five-way reversing valve 18 have different opening degrees, so that the controller 30 controls the braking effect of the cylinder 4 and the brake actuator 29 connected to the cylinder 4 through the two-position five-way reversing valve 18.
The inventor finds that: similar braking and protecting devices have the following defects that some devices rely on manual mechanical operation and operate a cylinder by inching and reversing, so that misoperation is easy to occur, the operation is complex and the labor cost is high; some actuating mechanism right side mechanical design structures of selecting for use have the defect, and the actuating mechanism right side chooses square slider for use, according to the definition of frictional force, and the power between two objects that contact is sliding friction, and frictional force is great this moment, and the cylinder needs great output power. Meanwhile, if the system is lack of a power-off protection device, the equipment cannot be guaranteed to still keep the extending or retracting state of the air cylinder under the condition of power-off, and the equipment has great potential safety hazard. Some equipment adopts hydraulic system to provide cylinder round trip power, and hydraulic system itself is shared great space, and equipment noise is great, and the working property is susceptible to the influence of temperature variation.
Therefore, the inventor designs the unidirectional automatic pneumatic system braking device, compared with a hydraulic system, the pneumatic system is adopted, so that the unidirectional automatic pneumatic system braking device has the advantages of convenient air source, no pollution, capability of centralized air supply and remote conveying, good adaptability to the working environment, rapid pneumatic response and convenient adjustment, automatic control can be realized by utilizing an air pressure signal, and the pneumatic element has the advantages of simple structure, low cost and long service life; the double-electric-control two-position five-way electromagnetic reversing 18 valve is added into the system, so that manual intervention is reduced, the automation capacity is improved, the double-electric-control valve is ensured to have a memory function, the air cylinder 4 can still be kept in the original working state when the electromagnetic valve is powered off, and the stability of equipment is ensured. The bolt type ball 11 is adopted on the right side of the brake actuating mechanism 29, and the bolt type ball 11 is used, so that sliding friction is changed into rolling friction compared with a square sliding block, friction force is reduced, power requirements are reduced, and equipment cost is reduced to a certain extent. The two-position five-way reversing valve 18 is controlled by the controller 30 to realize braking and contact braking of the brake actuator 29.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a unilateral automatic pneumatic system arresting gear, its characterized in that, unilateral automatic pneumatic system arresting gear mainly used bench test includes:
the right side of the brake actuating mechanism adopts the bolt type ball, the brake actuating mechanism is connected with the cylinder rod of the air cylinder through the rolling seat and the adapter, the locking position is locked by the locking nut to prevent loosening, and the rolling seat moves back and forth on the linear guide rail;
the brake cylinder is mainly used for providing reciprocating power;
the pneumatic system is used for supplementing pneumatic pressure to the air cylinder, a reversing control loop of the two-position five-way electromagnetic reversing valve is adopted, the double electronic control valve is ensured to have a memory function, and the air cylinder can still be kept in an original working state when the electromagnetic valve is powered off; the two-position five-way reversing valve is electrified at the left position, the two-position five-way reversing valve works at the left position, and the cylinder extends out under the action of pneumatic pressure; when the right position of the two-position five-way reversing valve is electrified, the two-position five-way reversing valve works at the right position, and the air cylinder retracts under the action of pneumatic pressure.
2. The unidirectional automated pneumatic system brake of claim 1, wherein; the bolt type ball is adopted on the right side of the brake actuating mechanism, sliding friction is changed into rolling friction by the bolt type ball, and friction force is reduced.
3. The unidirectional automatic pneumatic system brake of claim 1, further comprising: the cylinder mounting base is fixed on the cylinder mounting base by means of the cylinder mounting base fixing bolt, the cylinder is fixed on the cylinder mounting base, the supporting base is fixed by means of the supporting base fixing bolt, the supporting base is arranged above the cylinder mounting base fixing bolt, and the cylinder mounting base and the linear guide rail fixing bolt respectively fix the cylinder mounting base and the linear guide rail and simultaneously lock the linear guide rail by the linear guide rail locking bolt.
4. The unidirectional automated pneumatic system brake of claim 1, further comprising: the outer cover is fixed outside the brake actuating mechanism through the outer cover mounting column, and the outer cover plays a role in protecting and beautifying the appearance of the brake actuating mechanism.
5. The unidirectional automatic pneumatic system brake of claim 4, wherein: the cylinder is connected with the two-position five-way reversing valve through the cylinder port A and the cylinder port B.
6. The unidirectional automated pneumatic system brake of claim 5, further comprising:
an oil atomizer: the oil atomizer atomizes lubricating oil and injects the lubricating oil into air flow, and the lubricating oil flows into the two-position five-way reversing valve and the cylinder along with compressed air to achieve the purpose of lubrication;
the pressure reducing valve is used for reducing the inlet pressure to a certain required outlet pressure through regulation, and the outlet pressure is automatically kept stable by depending on the energy of a medium, so that the cylinder is ensured not to fluctuate in the reciprocating motion process;
the air filter separates liquid water and liquid oil drops in the compressed air, filters out dust and solid impurities in the air, and cannot remove gaseous water and oil;
the air dryer is used for drying moisture in high-pressure air so as to avoid the corrosion of the two-position five-way reversing valve and the air cylinder caused by the moisture in the air;
the air tank is mainly used for stabilizing air pressure and storing air, has a certain energy-saving effect and also plays a certain role in cooling and filtering;
the water diversion drainer is used for separating the water in the compressed air;
a cooler for reducing a temperature increase of the compressed air due to the air compression, the pressure increase;
an air compressor, which is used primarily to deliver and boost the pressure of the gas, is used to provide compressed air to the pneumatic system.
7. The unidirectional automatic pneumatic system brake of claim 6, wherein: the adapter is T type structure, through structural design with it with roll the seat and be connected, the adapter opposite side through the screw with cylinder pole is connected.
8. The unidirectional automatic pneumatic system brake apparatus of claim 7, wherein: the bolt type ball is fixedly connected with the hexagonal thin nut through threads, and the ball can rotate freely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210175569.6A CN114526300B (en) | 2022-02-25 | Unidirectional automatic pneumatic system braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210175569.6A CN114526300B (en) | 2022-02-25 | Unidirectional automatic pneumatic system braking device |
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| Publication Number | Publication Date |
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| CN114526300A true CN114526300A (en) | 2022-05-24 |
| CN114526300B CN114526300B (en) | 2024-04-26 |
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