AGV towing pin
Technical Field
The utility model belongs to the automatic control field especially relates to a AGV's towing pin.
Background
Automated Guided Vehicle (AGV) systems have evolved into one of the largest specialized branches of production flow systems. A conventional AGV is shown in fig. 1 and includes: a housing and a kingpin 1; the traction pin 1 of the existing AGV is lifted by a cam.
In the scheme for realizing the prior art, the following technical problems are found in the prior art:
in the process that the AGV is driven by the cam to lift in the prior art, the motor is easy to block, the motor is damaged, and the service life of the motor is influenced.
Disclosure of Invention
An object of the embodiment of the utility model is to provide a towing pin of AGV, its towing pin of mainly solving prior art takes place the motor stall easily, influences the problem in motor life-span.
The utility model provides a AGV's towing pin, the towing pin includes: the device comprises a shell, a cover plate, a traction rod, a screw rod, a gear nut, a vertical gear, a horizontal gear, a pull ring hanging pin, a lifting limiting hanging pin, a spring, an installation base and a driving motor; wherein,
a middle hole is formed in the middle of the screw rod, lifting grooves are formed in two sides of the screw rod, the traction rod is located in the middle hole, and a lifting hole is formed in the bottom of the traction rod; the pull ring is fixed on the upper part of the screw in a scraping way; the lifting limiting scrapers are in contact with the bottoms of the gear nuts, one ends of the lifting limiting scrapers are connected with one ends of the springs, the lifting limiting scrapers penetrate through the lifting grooves and the lifting holes and drive the traction rods to lift, and the other ends of the springs are connected with one ends of the pull ring scrapers;
the gear nut is sleeved on the screw rod, the driving motor and the vertical gear are both fixed on the installation base, the rotating side of the driving motor is connected with the horizontal gear and drives the horizontal gear to rotate, the horizontal gear and the vertical gear are combined to drive the vertical gear to rotate, and the vertical gear and the gear nut are meshed and drive the gear nut to rotate.
Optionally, the lifting limiting scraping further comprises: a limiting rod and a bearing; wherein the bearing is in contact with the bottom of the gear nut.
In the embodiment of the utility model, the utility model provides an in the technical scheme traction lever in through a plurality of nut drive towing pin, so even take place stifled commentaries on classics, can not influence the motor yet, so it has the advantage that improves motor life.
Drawings
FIG. 1 is a block diagram of an AGV provided in the prior art;
FIG. 2 is the structure diagram of AGV towing pin provided by the present invention.
Reference numerals in the drawings indicate:
the device comprises a traction pin 1, a shell 2, a cover plate 3, a traction rod 4, a screw rod 5, a gear nut 6, a vertical gear 7, a horizontal gear 8, a pull ring hanging pin 9, a lifting limiting hanging pin 10, a spring 11, an installation base 12, a driving motor 13, a middle hole 51, a lifting hole 41, a limiting rod 101 and a bearing 102.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The utility model provides a towing pin of AGV, this towing pin is shown as figure 2, include: the device comprises a shell 2, a cover plate 3, a traction rod 4, a screw rod 5, a gear nut 6, a vertical gear 7, a horizontal gear 8, a pull ring hanging pin 9, a lifting limit hanging pin 10, a spring 11, an installation base 12 and a driving motor 13; wherein,
a middle hole 51 is formed in the middle of the screw rod 5, lifting grooves 52 are formed in two sides of the screw rod 5, the traction rod 4 is located in the middle hole 51, and a lifting hole 41 is formed in the bottom of the traction rod 4; the pull ring scraper 9 is fixed on the upper part of the screw rod 5; the lifting limiting scraper 10 is contacted with the bottom of the gear nut 6, one end of the lifting limiting scraper 10 is connected with one end of a spring 11, the lifting limiting scraper 10 penetrates through a lifting groove 52 and a lifting hole 41 and drives the traction rod 4 to lift, and the other end of the spring 11 is connected with one end of a pull ring scraper 9;
gear nut 6 cup joints on screw rod 5, and driving motor 13 and vertical gear 7 are all fixed on installation base 12, and driving motor 13's rotation side is connected with horizontal gear 8 and drives horizontal gear 8 and rotate, and horizontal gear 8 and vertical gear 7 meshing and drive vertical gear and rotate, and vertical gear 7 and gear nut 6 meshing and drive gear nut 6 and rotate.
The working principle of the utility model is that the driving motor drives the horizontal gear to rotate, the horizontal gear drives the vertical gear to rotate, the vertical gear drives the gear nut to rotate, so that the gear nut moves up and down on the screw rod, when the gear nut moves up, because the lifting limit scraper 10 is not pressed by the gear nut, the spring 11 can drive the lifting limit scraper 10 to move up along the lifting groove, thus the lifting limit scraper 10 can drive the traction rod 4 to move up, thereby achieving the purpose of the traction pin, when the gear nut moves down, the gear nut presses the lifting limit scraper 10 to move down along the lifting groove, the lifting limit scraper 10 drives the traction pin to move down, thereby achieving the purpose of moving down, because the downward or upward movement of the traction pin is driven by the gear nut at the moment, even if the seizure condition occurs, because of the gear nut, the vertical nut and the horizontal nut, the dead strength of card can not directly influence driving motor yet, so to driving motor it can not receive the dead influence of card, so it has driving motor and uses the advantage that the reliability is high, in addition, owing to adopt the three nut transmission drive of gear nut, vertical nut and horizontal nut, can effectual reduction towing pin's height, so it also has the advantage of reducing the towing pin height.
Optionally, the lifting limiting scraper 10 further comprises: a stop lever 101 and a bearing 102; wherein the bearing 102 is in contact with the bottom of the gear nut 6. The contact part of the elevation limit scraper 10 and the gear nut 6 is set as a bearing because the rotation of the bearing can convert the contact point of the elevation limit scraper 10 and the gear nut 6, which can improve the service life of the traction pin.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.