CN111452886A

CN111452886A - Free separation AGV dolly based on inertia speed reduction auto-lock

Info

Publication number: CN111452886A
Application number: CN202010465871.6A
Authority: CN
Inventors: 高雪
Original assignee: Changzhou Vocational Institute of Light Industry
Current assignee: Changzhou Vocational Institute of Light Industry
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2020-07-28

Abstract

The invention relates to the technical field of AGV trolleys, in particular to a freely-separated AGV trolley based on inertia speed reduction self-locking, which comprises an AGV trolley body, a plate trolley and a speed reduction self-locking mechanism, wherein the speed reduction self-locking mechanism comprises a gear, a swing rod, a balancing weight, a rack and a locking plate, a middle cavity is arranged in the AGV trolley body, the upper end of the swing rod is fixedly connected with the gear, and the lower end of the swing rod is fixedly connected with the balancing weight. And the structure is simple and the cost is low.

Description

Free separation AGV dolly based on inertia speed reduction auto-lock

Technical Field

The invention relates to the technical field of AGV trolleys, in particular to a free separation AGV trolley based on inertial deceleration self-locking.

Background

The AGV is a transport trolley which is provided with an electromagnetic or optical guiding device, can run according to a specified guiding route and has various transplanting functions, the AGV trolley mainly comprises an AGV trolley body and a pallet truck for loading goods, the AGV trolley body is used for providing traction power to drive the pallet truck to move forwards to a destination, a driving device of the AGV trolley mainly comprises a motor, a speed reducer, a brake and a speed controller, the motor drives wheels to rotate through the speed reducer, a running command of the motor is controlled manually or by a computer, and the running speed, the running direction and the braking are respectively controlled by the computer;

In order to facilitate the AGV to drive the board car to arrive the destination back, the AGV can freely separate with the board car, current way generally is for seting up the drive groove on the AGV car, the last configuration of board car is with the actuating lever that the drive groove matches with the drive groove, with this by the drive groove on the AGV car forward the actuating lever, make the AGV car drive the board car and move ahead in the lump, arrive the destination back, the AGV dolly is backed off, alright make drive groove and actuating lever separation, thereby realize the quick separation of AGV dolly and board car, however this structure is when the braking of AGV dolly is slowed down in the in-process of traveling, the speed of board car can not reduce, consequently, AGV dolly and board car direct break away from appears easily, cause the board car to lose control, produce the problem of striking easily.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to solve the problem that when an AGV trolley in the prior art is braked and decelerated, a pallet truck can continuously move forwards to cause the separation of the AGV trolley and the pallet truck, the free separation AGV trolley based on inertia deceleration self-locking is provided.

The technical scheme adopted by the invention for solving the technical problems is as follows: a freely-separated AGV based on inertial deceleration self-locking comprises an AGV trolley body, a board trolley and a deceleration self-locking mechanism, wherein a strip-shaped driving groove is formed in the right side of the end face of the top end of the AGV trolley body leftwards, the left end of the driving groove is provided with a left side wall, the right end of the driving groove is provided with a right opening, the end face of the bottom end of the board trolley is upwards sunken with a sunken part for the AGV trolley body to pass through, a driving rod matched with the driving groove extends downwards from the top wall of the sunken part, and the driving rod is clamped into the driving groove and is in contact with the left side wall of the driving groove;

Speed reduction self-locking mechanism includes gear, pendulum rod, balancing weight, rack and jam plate, AGV dolly is originally internal to have the middle chamber, gear revolve installs at middle intracavity, the upper end and the gear fixed connection of pendulum rod, the lower extreme and the balancing weight fixed connection of pendulum rod, vertical direction slidable mounting is followed at middle intracavity to the jam plate, the jam plate is located the right side of left side wall, the rack is fixed on the jam plate, and rack and gear intermeshing, when the pendulum rod deflects right, jam plate rebound to the drive inslot.

This scheme utilization drive groove and the mutual cooperation of actuating lever, the actuating lever is being pushed away to the left side wall that makes AGV dolly body, with this drive the wooden handcart and move ahead right, and combine the setting of speed reduction self-locking mechanism, make AGV dolly body when the braking slows down, the inertia that utilizes the balancing weight drives the pendulum rod beat right, the gear drives the rack and shifts up, make jam plate rebound to the drive inslot, shift out the drive groove right with the prevention actuating lever, thereby with the wooden handcart restriction on AGV dolly body, prevent that AGV dolly body from taking place the separation with the wooden handcart when slowing down, and after AGV dolly body speed is stable, pendulum rod automatic recovery to vertical state under the action of gravity, the jam plate leaves the drive downwards.

Furthermore, a locking rod extends rightwards from the right side of the driving rod, and a locking groove for the locking rod to penetrate through is formed in the locking plate; when the AGV dolly body when the braking slows down, the jam plate shifts up, and the actuating lever on the wooden handcart and moves right, and the actuating lever can insert the locking inslot of jam plate, makes the jam plate can't move down to ensure that the wooden handcart can slow down with AGV dolly body in the lump, when the speed of AGV dolly body resumes to being greater than the speed of wooden handcart, the actuating lever contacts with the left side wall in drive groove again, and locking lever and locking groove separation lose the spacing jam plate of locking lever and shift out the drive groove downwards.

Furthermore, the middle cavity is internally provided with two mutually symmetrical clamping grooves, and the edges of two sides of the locking plate are respectively embedded into the clamping grooves on the side where the locking plate is located.

Furthermore, the balancing weight is conical, and the big end of the balancing weight is fixedly connected with the swing rod.

Further, the rightmost side of the driving groove is provided with a guide groove, the guide groove is conical, and the small end of the guide groove is close to the driving groove.

The invention has the beneficial effects that: the freely-separated AGV based on inertia speed reduction self-locking utilizes the mutual matching of the driving groove and the driving rod to enable the left side wall of the AGV body to push the driving rod so as to drive the plate trailer to move forwards rightwards, and combines the arrangement of the speed reduction self-locking mechanism, so that when the AGV body brakes and decelerates, the inertia of the balancing weight is utilized to drive the swing rod to swing rightwards, the gear drives the rack to move upwards, the locking plate moves upwards into the driving groove so as to prevent the driving rod from moving out of the driving groove rightwards, the plate trailer is limited on the AGV body, the AGV body is prevented from being separated from the plate trailer when decelerating, and the freely-separated AGV is simple in structure and low in cost.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic cross-sectional view of an inertial deceleration self-locking based free disengaging AGV of the present invention;

FIG. 2 is an enlarged schematic view of A of FIG. 1;

FIG. 3 is a schematic illustration of the present invention based on inertial deceleration self-locking during deceleration of a free disengaging AGV;

FIG. 4 is an enlarged schematic view of B in FIG. 3;

FIG. 5 is a side view schematic of the present invention inertial deceleration self-locking based free disengaging AGV;

FIG. 6 is a schematic diagram of an AGV body in the free-separation AGV based on inertial deceleration self-locking of the present invention;

FIG. 7 is a schematic illustration of a pallet truck in the present invention based on inertial deceleration self-locking free separation AGV;

In the figure: 1. the AGV comprises an AGV trolley body, 1-1 parts of a driving groove, 1-11 parts of a left side wall, 1-12 parts of a right opening, 1-13 parts of a guide groove, 1-2 parts of a middle cavity, 1-21 parts of a clamping groove, 2 parts of a plate trolley, 2-1 parts of a concave part, 2-11 parts of a driving rod, 2-111 parts of a locking rod, 3 parts of a gear, 4 parts of a swing rod, 5 parts of a balancing weight, 6 parts of a rack, 7 parts of a locking plate, 7-1 parts of a locking groove.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams illustrating the basic structure of the present invention only in a schematic manner, and thus show only the constitution related to the present invention, and directions and references (e.g., upper, lower, left, right, etc.) may be used only to help the description of the features in the drawings. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.

Example 1

As shown in fig. 1-7, a free separation AGV trolley based on inertia speed reduction self-locking comprises an AGV trolley body 1, a pallet 2 and a speed reduction self-locking mechanism, wherein wheels 1 of the AGV trolley and wheels of the pallet 2 are both in contact with the ground, the right side of the end surface of the top end of the AGV trolley body 1 is provided with a strip-shaped driving groove 1-1 leftwards, the left end of the driving groove 1-1 is provided with a left side wall 1-11, the right end of the driving groove 1-1 is provided with a right opening 1-12, the bottom end face of the plate trailer 2 is upwards sunken with a sunken part 2-1 for the AGV trolley body 1 to pass through, the top wall of the concave part 2-1 extends downwards to form a driving rod 2-11 matched with the driving groove 1-1, the driving rod 2-11 is clamped in the driving groove 1-1 and is contacted with the left side wall 1-11 of the driving groove 1-1;

The speed reduction self-locking mechanism comprises a gear 3, a swing rod 4, a balancing weight 5, a rack 6 and a locking plate 7, wherein an intermediate cavity 1-2 is arranged in the AGV trolley body 1, the gear 3 is rotatably arranged in the intermediate cavity 1-2, the upper end of the swing rod 4 is fixedly connected with the gear 3, the lower end of the swing rod 4 is fixedly connected with the balancing weight 5, the locking plate 7 is slidably arranged in the intermediate cavity 1-2 along the vertical direction, the locking plate 7 is positioned on the right side of the left side wall 1-11, the rack 6 is fixed on the locking plate 7, the rack 6 is meshed with the gear 3, and when the swing rod 4 deflects rightwards, the locking plate 7 moves upwards to the driving groove 1-1.

A locking rod 2-111 extends rightwards from the right side of the driving rod 2-11, and a locking groove 7-1 for the locking rod 2-111 to pass through is formed in the locking plate 7; when the AGV trolley body 1 decelerates during braking, the locking plate 7 moves upwards, the pallet trolley 2 and the driving rods 2-11 on the pallet trolley body move rightwards, and the driving rods 2-11 can be inserted into the locking grooves 7-1 of the locking plate 7, so that the locking plate 7 cannot move downwards, the pallet trolley 2 and the AGV trolley body 1 can decelerate together, when the speed of the AGV trolley body 1 is recovered to be higher than that of the pallet trolley 2, the driving rods 2-11 are contacted with the left side walls 1-11 of the driving grooves 1-1 again, the locking rods 2-111 are separated from the locking grooves 7-1, and the locking plate 7 losing the limit of the locking rods 2-111 moves downwards out of the driving grooves 1-1.

Two mutually symmetrical clamping grooves 1-21 are arranged in the middle cavity 1-2, and edges on two sides of the locking plate 7 are respectively embedded into the clamping grooves 1-21 on the side where the locking plate is located; thereby realizing the sliding connection of the locking plate 7 on the AGV trolley body 1.

The counterweight block 5 is conical, and the large end of the counterweight block 5 is fixedly connected with the swing rod 4; thereby being convenient for the balancing weight 5 to drive the swing rod 4 to return to the vertical state.

The rightmost side of the driving groove 1-1 is provided with a guide groove 1-13, the guide groove 1-13 is conical, and the small end of the guide groove 1-13 is close to the driving groove 1-1; so that the driving rod 2-11 is relatively clamped in the driving groove 1-1.

The working principle of the freely-separated AGV based on inertial deceleration self-locking is as follows:

At the starting point of transportation, loading goods into the pallet truck 2 manually, starting the AGV trolley body 1, aligning the driving grooves 1-1 with the driving rods 2-11, moving the AGV trolley body 1 rightwards, clamping the driving rods 2-11 into the driving grooves 1-1, and driving the pallet truck 2 to move forwards to the destination rightwards by the AGV trolley body 1;

When the AGV trolley body 1 is braked and decelerated, the balance weight 5 drives the swing rod 4 to swing rightwards under the inertia effect of the balance weight, the gear 3 drives the rack 6 to move upwards, the locking plate 7 moves upwards into the driving groove 1-1, meanwhile, the pallet trolley 2 and the driving rod 2-11 on the pallet trolley 2 move rightwards, the driving rod 2-11 is inserted into the locking groove 7-1 of the locking plate 7, the locking plate 7 cannot move downwards, so that the pallet trolley 2 and the AGV trolley body 1 can be decelerated together, when the speed of the AGV trolley body 1 is recovered to be higher than that of the pallet trolley 2, the driving rod 2-11 is contacted with the left side wall 1-11 of the driving groove 1-1 again, the locking rod 2-111 is separated from the locking groove 7-1, and the locking plate 7 losing the limit of the locking rod 2-111 moves downwards out of the driving groove 1;

And after the AGV arrives at the destination, the AGV trolley body 1 is stopped, the locking plate 7 is positioned below the driving groove 1-1, then the AGV trolley body 1 is restarted to enable the AGV trolley body to retreat leftwards until the driving groove 1-1 and the driving rod 2-11 are completely separated, so that the AGV trolley body 1 is automatically separated from the plate trolley 2, and the plate trolley 2 loaded with goods stops at the transportation destination.

In light of the foregoing description of the preferred embodiment of the present invention, it is to be understood that numerous changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a freely separate AGV dolly based on inertia speed reduction auto-lock which characterized in that: the AGV comprises an AGV trolley body (1), a board trolley (2) and a speed reduction self-locking mechanism, wherein a strip-shaped driving groove (1-1) is formed in the right side of the end face of the top end of the AGV trolley body (1) leftwards, a left side wall (1-11) is arranged at the left end of the driving groove (1-1), a right opening (1-12) is formed in the right end of the driving groove (1-1), a concave part (2-1) for the AGV trolley body (1) to pass through is upwards concave in the end face of the bottom end of the board trolley (2), a driving rod (2-11) matched with the driving groove (1-1) downwards extends from the top wall of the concave part (2-1), and the driving rod (2-11) is clamped into the driving groove (1-1) and is contacted with the left side wall (1-11) of the driving groove (1-1);

Speed reduction self-locking mechanism includes gear (3), pendulum rod (4), balancing weight (5), rack (6) and jam plate (7), middle chamber (1-2) have in AGV dolly body (1), gear (3) rotate and install in middle chamber (1-2), the upper end and gear (3) fixed connection of pendulum rod (4), the lower extreme and balancing weight (5) fixed connection of pendulum rod (4), jam plate (7) are along vertical direction slidable mounting in middle chamber (1-2), jam plate (7) are located the right side of left side wall (1-11), rack (6) are fixed on jam plate (7), and rack (6) and gear (3) intermeshing, when pendulum rod (4) deflect right, jam plate (7) rebound to drive inslot (1-1).

2. The AGV car of claim 1, wherein the AGV car further comprises: the right side of the driving rod (2-11) extends rightwards to form a locking rod (2-111), and a locking groove (7-1) for the locking rod (2-111) to penetrate through is formed in the locking plate (7).

3. The AGV car of claim 1, wherein the AGV car further comprises: two mutually symmetrical clamping grooves (1-21) are arranged in the middle cavity (1-2), and edges on two sides of the locking plate (7) are respectively embedded into the clamping grooves (1-21) on the side where the locking plate is located.

4. The AGV car of claim 1, wherein the AGV car further comprises: the balancing weight (5) is conical, and the large end of the balancing weight (5) is fixedly connected with the swing rod (4).

5. The AGV car of claim 1, wherein the AGV car further comprises: the rightmost side of the driving groove (1-1) is provided with a guide groove (1-13), the guide groove (1-13) is conical, and the small end of the guide groove (1-13) is close to the driving groove (1-1).