CN112081892A - Small-caliber turn-back type heavy-load electric cylinder and method - Google Patents
Small-caliber turn-back type heavy-load electric cylinder and method Download PDFInfo
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- CN112081892A CN112081892A CN202010990928.4A CN202010990928A CN112081892A CN 112081892 A CN112081892 A CN 112081892A CN 202010990928 A CN202010990928 A CN 202010990928A CN 112081892 A CN112081892 A CN 112081892A
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 54
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 43
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 42
- 230000001360 synchronised effect Effects 0.000 claims description 29
- 229910000831 Steel Inorganic materials 0.000 claims description 23
- 239000010959 steel Substances 0.000 claims description 23
- 239000003245 coal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 238000004088 simulation Methods 0.000 description 1
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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
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
- F16H37/124—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types for interconverting rotary motion and reciprocating motion
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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
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/035—Gearboxes for gearing with endless flexible members
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/1004—Structural association with clutches, brakes, gears, pulleys or mechanical starters with pulleys
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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
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H2025/2031—Actuator casings
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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
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H2025/2037—Actuator supports or means for fixing piston end, e.g. flanges
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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
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H2025/204—Axial sliding means, i.e. for rotary support and axial guiding of nut or screw shaft
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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
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H2025/2062—Arrangements for driving the actuator
- F16H2025/2081—Parallel arrangement of drive motor to screw axis
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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
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H2025/2062—Arrangements for driving the actuator
- F16H2025/2096—Arrangements for driving the actuator using endless flexible members
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02034—Gearboxes combined or connected with electric machines
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a small-caliber turn-back heavy-load electric cylinder and a method, comprising a driving mechanism and a transmission mechanism; the driving mechanism comprises a driving motor, a first synchronizing wheel and a motor fixing support; the driving motor is fixedly arranged on the motor fixing support, and an output shaft of the driving motor is connected with the first synchronizing wheel; the transmission mechanism comprises a lead screw, a second synchronizing wheel, an aluminum support and a push rod, the second synchronizing wheel is connected with the first synchronizing wheel through a belt, a driving motor rotates, the second synchronizing wheel is driven to rotate through the first synchronizing wheel, the second synchronizing wheel drives the lead screw to rotate, when the lead screw rotates, a nut in threaded connection with the lead screw drives the aluminum support to slide on the guide rail along the linear direction, when the aluminum support slides, the push rod is driven to move along the linear direction, and finally, the push rod head can penetrate through a push rod extending hole to extend out of a transmission mechanism shell. The electric cylinder has simple structure and reliable use, can meet the working requirements of small caliber and heavy load of certain precision mechanical equipment, and can be used in complicated severe environment.
Description
Technical Field
The invention belongs to the field of machinery, and particularly relates to an electric cylinder.
Background
The electric cylinder is a product which integrates a servo motor and a lead screw, the rotary motion of the motor is converted into the linear motion of a push rod through the mechanical motion of the lead screw and a lead screw pair, the reciprocating motion of an output shaft is realized through the positive and negative rotation of the motor, and the remote control and the centralized control can be realized; the device has the performance characteristics of high transmission efficiency, high positioning accuracy, high reliability and safety, high response speed, high control accuracy and high synchronism.
The existing servo electric cylinder has a complex overall structure and a large overall volume, occupies a large space in applied mechanical equipment, is inconvenient to install and has a small application range; meanwhile, the cable is easy to wear, short in service life, high in noise and inconvenient to connect with external parts; in some occasions with small volume, high precision requirement and large load, the existing product can not meet the use requirement. In order to obtain a more practical and effective use function of the electric cylinder for a special working occasion, the performance of the electric cylinder needs to be improved. Through designing new transmission structure, combine the driving motor of high torque density, not only can reduce the volume of electronic jar, reduce noise at work, can also accomplish the work requirement of small-bore, heavy load, no matter in scientific research or military project application, all have important value.
Chinese patent CN111371244A proposes a high-thrust roller screw type servo electric cylinder for a coal mining equipment support, and provides a high-thrust roller screw type servo electric cylinder for a coal mining equipment support, which comprises a box body, a driving device, a transmission device and an executing device. The structure design of the device leads to large volume and heavy weight, and the device can not be applied to small-volume precision machinery, and the structure leads to large noise in the working process, so that the device has limited application occasions.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a small-caliber turn-back heavy-load electric cylinder and a method, which comprises a driving mechanism and a transmission mechanism; the driving mechanism comprises a driving motor, a first synchronizing wheel and a motor fixing support; the driving motor is fixedly arranged on the motor fixing support, and an output shaft of the driving motor is connected with the first synchronizing wheel; the transmission mechanism comprises a lead screw, a second synchronizing wheel, an aluminum support and a push rod, the second synchronizing wheel is connected with the first synchronizing wheel through a belt, a driving motor rotates, the second synchronizing wheel is driven to rotate through the first synchronizing wheel, the second synchronizing wheel drives the lead screw to rotate, when the lead screw rotates, a nut in threaded connection with the lead screw drives the aluminum support to slide on the guide rail along the linear direction, when the aluminum support slides, the push rod is driven to move along the linear direction, and finally, the push rod head can penetrate through a push rod extending hole to extend out of a transmission mechanism shell. The electric cylinder has simple structure and reliable use, can meet the working requirements of small caliber and heavy load of certain precision mechanical equipment, and can be used in complicated severe environment.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a small-caliber turn-back heavy-load electric cylinder comprises a driving mechanism, a transmission mechanism and a bottom plate;
the driving mechanism comprises a driving motor, a first synchronizing wheel and a motor fixing support; the motor fixing support is of a hollow structure and is fixedly arranged on the bottom plate; the driving motor is fixedly arranged above the side face of the motor fixing support, an output shaft of the driving motor is arranged in a cavity of the motor fixing support, and the output shaft of the driving motor is fixedly connected with the first synchronizing wheel; the driving motor is provided with a driving motor electrical interface, and the driving motor is controlled by the remote control system through the driving motor electrical interface;
the transmission mechanism comprises a lead screw, a push rod head, a steel sleeve, a steel support, a bearing, a guide rail, an aluminum support, a nut, a second synchronous wheel, a guide rail bottom plate, a shell mounting bracket and a transmission mechanism shell; the two guide rails are arranged on two sides of the guide rail bottom plate in parallel to the screw rod, a plurality of guide rail mounting holes are formed in the guide rails, and screws are mounted in the guide rail mounting holes to fix the guide rails and the guide rail bottom plate on the bottom surface inside the transmission mechanism shell; two guide grooves are symmetrically formed below the aluminum support, the aluminum support is arranged on the guide rail through the guide grooves, and the aluminum support can slide on the guide rail; a first round hole is formed in the center of the aluminum support, a plurality of nut mounting holes are uniformly formed in the periphery of the first round hole, the nuts are fixedly mounted on the side face of the aluminum support through the nut mounting holes, and the center holes of the nuts are aligned with the first round hole; the steel support is fixedly arranged on one side, close to the motor fixing support, of the transmission mechanism shell, a second round hole is formed in the center of the steel support, and a bearing is embedded in the second round hole; one end of the lead screw penetrates through a central hole of the nut, then penetrates through the first round hole, then penetrates through the bearing and then is fixedly connected with the second synchronous wheel, the lead screw is connected with the nut through threads, the lead screw is fixedly connected with the bearing, and the other end of the lead screw is suspended; the second synchronous wheel is positioned below the first synchronous wheel in the cavity of the motor fixing support and is connected with the first synchronous wheel through a belt; one end of the push rod is fixedly arranged obliquely above the central hole of the aluminum support, the other end of the push rod is provided with a push rod head, the push rod and the push rod head are of an integrated structure, the push rod head penetrates through a steel sleeve which is fixed on one side of the shell of the transmission mechanism, which is far away from the motor fixing support, the steel sleeve is used for preventing the push rod from shaking in the advancing and retreating processes, and the push rod is parallel to the lead screw; the transmission mechanism shell is fixed on the bottom plate through a shell mounting bracket, the lead screw, the push rod, the aluminum support, the steel support and the guide rail are all arranged in the transmission mechanism shell, and the transmission mechanism shell is used for protecting the transmission mechanism; a push rod extending hole is formed in one side, far away from the motor fixing support, of the transmission mechanism shell;
the driving motor rotates to drive the first synchronous wheel to rotate, the first synchronous wheel drives the second synchronous wheel to rotate through the belt, the second synchronous wheel drives the lead screw to rotate, when the lead screw rotates, the nut in threaded connection with the lead screw drives the aluminum support to slide on the guide rail in the linear direction, when the aluminum support slides, the push rod is driven to move in the linear direction, and finally, the push rod head can penetrate through the push rod extending hole to extend out of the shell of the transmission mechanism; the driving motor can rotate forward and backward, and when the driving motor rotates forward and backward, the push rod makes reciprocating return motion.
Preferably, the number of the guide rail mounting holes is 8; the number of the nut mounting holes is 5.
A push rod moving method applied to a small-caliber turn-back type heavy-load electric cylinder comprises the following steps:
step 1: the electric cylinder is started through a remote control system, and the remote control system controls the driving motor to act;
step 2: the driving motor rotates to drive the first synchronous wheel to rotate, the first synchronous wheel drives the second synchronous wheel to rotate through the belt, the second synchronous wheel drives the lead screw to rotate, when the lead screw rotates, the nut in threaded connection with the lead screw drives the aluminum support to slide on the guide rail along the linear direction, when the aluminum support slides, the push rod is driven to move back to the initial position along the linear direction, and zero setting of the position of the transmission mechanism is completed;
and step 3: the remote control system sets the stroke of the driving motor, the driving motor rotates to drive the push rod to move forwards, and the push rod head penetrates through the push rod extending hole to extend out of the shell of the transmission mechanism, so that the specified operation is realized; after the appointed operation is finished, the driving motor rotates reversely to drive the push rod to move backwards and return to the initial position.
The invention has the following beneficial effects:
1. the push rod designed by the invention has small caliber, can run in a heavy load manner, and is suitable for certain mechanical equipment with small volume, high precision requirement and larger load.
2. The invention can realize high-precision linear motion and high-precision motion control, can reduce noise and save energy, and has the characteristics of high rigidity, strong impact resistance, super-long service life, simple operation and maintenance and extremely low failure rate in severe environment.
3. The transmission mechanism designed by the invention comprises the guide rail, the push rod, the lead screw and the like, has a simple structure, keeps the push rod in linear motion in the rotation process of the lead screw, and uses novel materials to ensure that the transmission mechanism has higher strength and is more reliable to use.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural diagram of the driving mechanism of the present invention.
Fig. 3 is a schematic diagram of the internal structure of the transmission mechanism of the present invention.
In the figure: 1-bottom plate, 2-push rod extension hole, 3-transmission mechanism shell, 4-shell mounting bracket, 5-driving motor, 6-motor fixing bracket, 7-driving motor electrical interface, 8-first synchronous wheel, 9-second synchronous wheel, 10-nut mounting hole, 11-aluminum support, 12-nut, 13-guide rail mounting hole, 14-push rod, 15-guide rail, 16-steel sleeve, 17-push rod head, 18-lead screw, 19-guide rail bottom plate, 20-steel support and 21-bearing.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
As shown in fig. 1, a small-bore turn-back heavy-load electric cylinder comprises a driving mechanism, a transmission mechanism and a bottom plate 1;
as shown in fig. 2, the driving mechanism includes a driving motor 5, a first synchronizing wheel 8 and a motor fixing bracket 6; the motor fixing bracket 6 is of a hollow structure and is fixedly arranged on the bottom plate 1; the driving motor 5 is fixedly arranged above the side surface of the motor fixing support 6, an output shaft of the driving motor 5 is arranged in a cavity of the motor fixing support 6, and an output shaft of the driving motor 5 is fixedly connected with a first synchronizing wheel 8; the driving motor 5 is provided with a driving motor electrical interface 7, and the driving motor 5 is controlled by a remote control system through the driving motor electrical interface 7;
as shown in fig. 3, the transmission mechanism comprises a lead screw 18, a push rod 14, a push rod head 17, a steel sleeve 16, a steel support 20, a bearing 21, a guide rail 15, an aluminum support 11, a nut 12, a second synchronizing wheel 9, a guide rail bottom plate 19, a housing mounting bracket 4 and a transmission mechanism housing 3; the two guide rails 15 are arranged on two sides of a guide rail bottom plate 19 in parallel to a lead screw 18, a plurality of guide rail mounting holes 13 are formed in the guide rails 15, and screws are mounted in the guide rail mounting holes 13 to fix the guide rails 15 and the guide rail bottom plate 19 on the bottom surface inside the transmission mechanism shell 3; two guide grooves are symmetrically formed below the aluminum support 11, the aluminum support 11 is installed on the guide rail 15 through the guide grooves, and the aluminum support 11 can slide on the guide rail 15; a first round hole is formed in the center of the aluminum support 11, a plurality of nut mounting holes 10 are uniformly formed in the periphery of the first round hole, the nuts 12 are fixedly mounted on the side face of the aluminum support 11 through the nut mounting holes 10, and the center holes of the nuts are aligned with the first round hole; the steel support 20 is fixedly arranged on one side, close to the motor fixing support 6, of the transmission mechanism shell 3, a second round hole is formed in the center of the steel support 20, and a bearing 21 is embedded in the second round hole; one end of the lead screw 18 firstly penetrates through a central hole of the nut, then penetrates through the first round hole, then penetrates through the bearing 21 and then is fixedly connected with the second synchronous wheel 9, the lead screw 18 is connected with the nut 12 through threads, the lead screw 18 is fixedly connected with the bearing 21, and the other end of the lead screw 18 is suspended; the second synchronizing wheel 9 is positioned below the first synchronizing wheel 8 in the cavity of the motor fixing support 6 and is connected with the first synchronizing wheel 8 through a belt; one end of the push rod 14 is fixedly arranged obliquely above a central hole of the aluminum support 11, the other end of the push rod 14 is provided with a push rod head 17, the push rod 14 and the push rod head 17 are of an integral structure, the push rod head 17 penetrates through a steel sleeve 16 fixed on one side of the transmission mechanism shell 3, which is far away from the motor fixing support 6, the steel sleeve 16 is used for preventing the push rod 14 from shaking in the advancing and retreating processes, and the push rod 14 is parallel to the lead screw 18; the transmission mechanism shell 3 is fixed on the bottom plate 1 through the shell mounting bracket 4, the lead screw 18, the push rod 14, the aluminum support 11, the steel support 20 and the guide rail 15 are all arranged in the transmission mechanism shell 3, and the transmission mechanism shell 3 is used for protecting the transmission mechanism; a push rod extending hole 2 is formed in one side, far away from the motor fixing support 6, of the transmission mechanism shell 3;
the driving motor 5 rotates to drive the first synchronizing wheel 8 to rotate, the first synchronizing wheel 8 drives the second synchronizing wheel 9 to rotate through a belt, the second synchronizing wheel 9 drives the lead screw 18 to rotate, when the lead screw 18 rotates, the nut 12 in threaded connection with the lead screw 18 drives the aluminum support 11 to slide on the guide rail 15 along the linear direction, when the aluminum support 11 slides, the push rod 14 is driven to move along the linear direction, and finally the push rod head 17 can penetrate through the push rod extending hole 2 and extend out of the transmission mechanism shell 3; the driving motor 5 can rotate forward and backward, and when the driving motor 5 rotates forward and backward, the push rod 14 makes reciprocating return motion.
A push rod moving method applied to a small-caliber turn-back type heavy-load electric cylinder comprises the following steps:
step 1: the electric cylinder is started through a remote control system, and the remote control system controls the driving motor 5 to act;
step 2: the driving motor 5 rotates to drive the first synchronizing wheel 8 to rotate, the first synchronizing wheel 8 drives the second synchronizing wheel 9 to rotate through a belt, the second synchronizing wheel 9 drives the lead screw 18 to rotate, when the lead screw 18 rotates, the nut 12 in threaded connection with the lead screw 18 drives the aluminum support 11 to slide on the guide rail 15 along the linear direction, and when the aluminum support 11 slides, the push rod 14 is driven to move back to the initial position along the linear direction, so that the zero setting of the position of the transmission mechanism is completed;
and step 3: the remote control system sets the stroke of the driving motor 5, the driving motor 5 rotates to drive the push rod 14 to move forwards, and the push rod head 17 penetrates through the push rod extending hole 2 to extend out of the transmission mechanism shell 3, so that the specified operation is realized; after the designated operation is completed, the driving motor 5 rotates reversely to drive the push rod 14 to move backwards and return to the initial position.
The invention can be applied to the aspects of test equipment, such as a six-degree-of-freedom simulation platform, a wave generator and the like; in the aspect of special equipment, other working occasions such as an automatic production line, a lifting platform, a coordinate mechanical arm and the like can replace hydraulic cylinders and pneumatic cylinders; in military terms, it can be equipped in weapon systems for the automated loading of ammunition.
Claims (3)
1. A small-caliber turn-back heavy-load electric cylinder is characterized by comprising a driving mechanism, a transmission mechanism and a bottom plate;
the driving mechanism comprises a driving motor, a first synchronizing wheel and a motor fixing support; the motor fixing support is of a hollow structure and is fixedly arranged on the bottom plate; the driving motor is fixedly arranged above the side face of the motor fixing support, an output shaft of the driving motor is arranged in a cavity of the motor fixing support, and the output shaft of the driving motor is fixedly connected with the first synchronizing wheel; the driving motor is provided with a driving motor electrical interface, and the driving motor is controlled by the remote control system through the driving motor electrical interface;
the transmission mechanism comprises a lead screw, a push rod head, a steel sleeve, a steel support, a bearing, a guide rail, an aluminum support, a nut, a second synchronous wheel, a guide rail bottom plate, a shell mounting bracket and a transmission mechanism shell; the two guide rails are arranged on two sides of the guide rail bottom plate in parallel to the screw rod, a plurality of guide rail mounting holes are formed in the guide rails, and screws are mounted in the guide rail mounting holes to fix the guide rails and the guide rail bottom plate on the bottom surface inside the transmission mechanism shell; two guide grooves are symmetrically formed below the aluminum support, the aluminum support is arranged on the guide rail through the guide grooves, and the aluminum support can slide on the guide rail; a first round hole is formed in the center of the aluminum support, a plurality of nut mounting holes are uniformly formed in the periphery of the first round hole, the nuts are fixedly mounted on the side face of the aluminum support through the nut mounting holes, and the center holes of the nuts are aligned with the first round hole; the steel support is fixedly arranged on one side, close to the motor fixing support, of the transmission mechanism shell, a second round hole is formed in the center of the steel support, and a bearing is embedded in the second round hole; one end of the lead screw penetrates through a central hole of the nut, then penetrates through the first round hole, then penetrates through the bearing and then is fixedly connected with the second synchronous wheel, the lead screw is connected with the nut through threads, the lead screw is fixedly connected with the bearing, and the other end of the lead screw is suspended; the second synchronous wheel is positioned below the first synchronous wheel in the cavity of the motor fixing support and is connected with the first synchronous wheel through a belt; one end of the push rod is fixedly arranged obliquely above the central hole of the aluminum support, the other end of the push rod is provided with a push rod head, the push rod and the push rod head are of an integrated structure, the push rod head penetrates through a steel sleeve which is fixed on one side of the shell of the transmission mechanism, which is far away from the motor fixing support, the steel sleeve is used for preventing the push rod from shaking in the advancing and retreating processes, and the push rod is parallel to the lead screw; the transmission mechanism shell is fixed on the bottom plate through a shell mounting bracket, the lead screw, the push rod, the aluminum support, the steel support and the guide rail are all arranged in the transmission mechanism shell, and the transmission mechanism shell is used for protecting the transmission mechanism; a push rod extending hole is formed in one side, far away from the motor fixing support, of the transmission mechanism shell;
the driving motor rotates to drive the first synchronous wheel to rotate, the first synchronous wheel drives the second synchronous wheel to rotate through the belt, the second synchronous wheel drives the lead screw to rotate, when the lead screw rotates, the nut in threaded connection with the lead screw drives the aluminum support to slide on the guide rail in the linear direction, when the aluminum support slides, the push rod is driven to move in the linear direction, and finally, the push rod head can penetrate through the push rod extending hole to extend out of the shell of the transmission mechanism; the driving motor can rotate forward and backward, and when the driving motor rotates forward and backward, the push rod makes reciprocating return motion.
2. The turn-around heavy-duty electric cylinder with a small diameter according to claim 1, wherein the number of the rail mounting holes is set to 8; the number of the nut mounting holes is 5.
3. A push rod moving method applied to a small-caliber turn-back type heavy-load electric cylinder is characterized by comprising the following steps:
step 1: the electric cylinder is started through a remote control system, and the remote control system controls the driving motor to act;
step 2: the driving motor rotates to drive the first synchronous wheel to rotate, the first synchronous wheel drives the second synchronous wheel to rotate through the belt, the second synchronous wheel drives the lead screw to rotate, when the lead screw rotates, the nut in threaded connection with the lead screw drives the aluminum support to slide on the guide rail along the linear direction, when the aluminum support slides, the push rod is driven to move back to the initial position along the linear direction, and zero setting of the position of the transmission mechanism is completed;
and step 3: the remote control system sets the stroke of the driving motor, the driving motor rotates to drive the push rod to move forwards, and the push rod head penetrates through the push rod extending hole to extend out of the shell of the transmission mechanism, so that the specified operation is realized; after the appointed operation is finished, the driving motor rotates reversely to drive the push rod to move backwards and return to the initial position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010990928.4A CN112081892A (en) | 2020-09-19 | 2020-09-19 | Small-caliber turn-back type heavy-load electric cylinder and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010990928.4A CN112081892A (en) | 2020-09-19 | 2020-09-19 | Small-caliber turn-back type heavy-load electric cylinder and method |
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| CN112081892A true CN112081892A (en) | 2020-12-15 |
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| CN202010990928.4A Pending CN112081892A (en) | 2020-09-19 | 2020-09-19 | Small-caliber turn-back type heavy-load electric cylinder and method |
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| CN (1) | CN112081892A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113847402A (en) * | 2021-02-25 | 2021-12-28 | 西安方元明科技股份有限公司 | Bear big radial force electric cylinder structure |
Citations (5)
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| CN113847402A (en) * | 2021-02-25 | 2021-12-28 | 西安方元明科技股份有限公司 | Bear big radial force electric cylinder structure |
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