CN219277161U

CN219277161U - Traction mechanism for AGV trolley

Info

Publication number: CN219277161U
Application number: CN202223425411.4U
Authority: CN
Inventors: 陆赛赛; 吴元兴; 王佳凯; 李守洋; 胡永建
Original assignee: Shanghai Shenghanshi Intelligent Technology Co ltd
Current assignee: Shanghai Shenghanshi Intelligent Technology Co ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-06-30
Anticipated expiration: 2032-12-20

Abstract

The utility model provides a traction mechanism for an AGV trolley, and relates to the technical field of AGV trolleys. The traction device comprises a vehicle body, movable wheels arranged at the bottom of the vehicle body and alignment devices arranged at two sides of the vehicle body, wherein the vehicle body is provided with a traction mechanism, and the traction mechanism comprises a traction head part and a traction tail part which are arranged at two sides of the vehicle body. The utility model solves the problem that the traction mechanism of the existing AGV trolley cannot be commonly used among AGV trolleys of different specifications.

Description

Traction mechanism for AGV trolley

Technical Field

The utility model provides a traction mechanism for an AGV trolley, and relates to the technical field of AGV trolleys.

Background

The AGVs are automatic guided carts, namely unmanned carrier carts, automatic carts and carrying robots; the transport vehicle is equipped with an electromagnetic or optical automatic guiding device, a radar laser device and the like, can travel along a specified guiding path, and has safety protection and various transfer functions. The main characteristics of the system are that the system has the functions of trolley programming, parking selection device, safety protection and various transfer, can be automatically driven by a person according to instructions under the monitoring of a computer, automatically runs along a specified guide path, reaches a specified place and completes a series of operation tasks. In recent years, with the rise of labor cost, automated production logistics is an effective method for reducing production management cost in manufacturing industry, and application of AGVs as automated production logistics transportation means has been rapidly developed.

Through retrieving, the patent of publication number CN217145554U discloses an AGV traction mechanism, and this traction mechanism has solved the defect that the single AGV automobile body that traditional AGV automobile body exists among the prior art damages and needs the manual work to withdraw equipment and cause troublesome operation, work efficiency low. However, when the traction mechanism is used, certain defects still exist, such as that the AGV trolley has different specifications and structures, and the traction mechanism can not be installed at a uniform height on the vehicle bodies with different specifications, so that the traction mechanism between the vehicle bodies with different specifications can not be used commonly, inconvenience is brought to practical use, and improvement is needed.

Disclosure of Invention

In order to solve the problems, the utility model provides a traction mechanism for an AGV trolley, and particularly solves the problem that the traction mechanism of the existing AGV trolley cannot be commonly used among AGV trolleys of different specifications through the arrangement of the traction mechanism.

The utility model provides a traction mechanism for an AGV (automatic guided vehicle), which comprises a vehicle body, movable wheels arranged at the bottom of the vehicle body and alignment devices arranged at two sides of the vehicle body, wherein the vehicle body is provided with the traction mechanism, the traction mechanism comprises a traction head part and a traction tail part which are arranged at two sides of the vehicle body, the traction tail part comprises a fixed plate fixedly connected to the side wall of the vehicle body, one side of the fixed plate is fixedly connected with a motor, an output shaft of the motor is coaxially fixedly connected with a worm, the worm is meshed with a worm wheel, the worm wheel is coaxially fixedly connected with a bidirectional screw, the bidirectional screw is slidingly connected with a sliding block, two sliding blocks are symmetrically arranged, a lifting plate is arranged above the bidirectional screw, a connecting rod II is hinged between the lifting plate and the sliding block, an electric push rod is fixedly connected to the bottom of the lifting plate, a connecting rod I is fixedly connected to the telescopic end of the electric push rod, one end of the connecting rod I, which is far away from the electric push rod, is fixedly connected with a connecting shaft, the traction head part comprises a connecting rod III fixedly connected with the side wall of the vehicle body, and one end, which is far away from the vehicle body, is fixedly connected with a connecting ring.

Preferably, the traction tail part further comprises two inserted bars fixedly connected to the side wall of the lifting plate, and the two inserted bars are symmetrically arranged.

Preferably, the traction head further comprises a spring fixedly connected to the side wall of the vehicle body, one end, far away from the vehicle body, of the spring is fixedly connected with a plug bush, and one end, far away from the spring, of the plug bush is provided with a jack matched with the plug rod.

Preferably, one end of the worm far away from the motor is rotationally connected with a first supporting plate, the first supporting plate is fixedly connected with a fixed plate, two ends of the bidirectional screw rod are rotationally connected with a second supporting plate, and the second supporting plate is fixedly connected with the fixed plate.

Preferably, a limiting rod is fixedly connected between the second supporting plates, and penetrates through the sliding block and is in sliding connection with the sliding block.

Preferably, the alignment device comprises an infrared emitter and an infrared receiver, wherein the infrared emitter is arranged on the lifting plate, the infrared receiver is arranged on one side of the vehicle body, which is close to the connecting ring, and the infrared emitter and the infrared receiver are respectively provided with a plurality of infrared receivers and are in one-to-one correspondence.

The utility model has the beneficial effects that:

the utility model provides a traction mechanism for an AGV trolley, which can lead the trolley bodies to be drawn through the arrangement of the traction mechanism, and the height of the traction tail part can be adjusted, so that even if the traction mechanism is installed on the trolley bodies with different specifications, the installation heights are different, the traction mechanism can be universal through adjusting the height of a lifting plate, and the traction mechanism is more convenient in practical use.

Drawings

FIG. 1 is a schematic view of the overall structure of a traction mechanism for an AGV of the present utility model.

Fig. 2 is an enlarged view at a of a traction mechanism for an AGV cart according to the present utility model.

FIG. 3 is a right side view of the trailing end of a traction mechanism for an AGV of the present utility model.

FIG. 4 is a top view of the traction head of a traction mechanism for an AGV of the present utility model.

( 1. A plug bush; 2. a spring; 3. a vehicle body; 4. a moving wheel; 5. an electric push rod; 6. a first connecting rod; 7. a connecting shaft; 8. a rod; 9. a lifting plate; 10. a second connecting rod; 11. a first supporting plate; 12. a worm; 13. a fixing plate; 14. a second supporting plate; 15. a motor; 16. a bidirectional screw rod; 17. a worm wheel; 18. a slide block; 19. a limit rod; 20. an infrared emitter; 21. a connecting ring; 22. connecting rod III )

Detailed Description

Preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1 to 4, the utility model provides a traction mechanism for an AGV trolley, which comprises a trolley body 3, a movable wheel 4 arranged at the bottom of the trolley body 3 and alignment devices arranged at two sides of the trolley body 3, wherein the trolley body 3 is provided with a traction mechanism, the traction mechanism comprises a traction head part and a traction tail part which are arranged at two sides of the trolley body 3, the traction tail part comprises a fixed plate 13 fixedly connected to the side wall of the trolley body 3, one side of the fixed plate 13 is fixedly connected with a motor 15, an output shaft of the motor 15 is coaxially fixedly connected with a worm 12, the worm 12 is meshed with a worm wheel 17, the worm wheel 17 is coaxially fixedly connected with a bidirectional screw 16, the bidirectional screw 16 is slidably connected with a sliding block 18, two sliding blocks 18 are symmetrically arranged, a lifting plate 9 is arranged above the bidirectional screw 16, and a connecting rod two 10 is hinged between the lifting plate 9 and the sliding block 18. Specifically, the motor 15 can drive the worm 12 to rotate, the worm 12 drives the worm wheel 17 to rotate, the worm wheel 17 drives the bidirectional screw rod 16 to rotate, the bidirectional screw rod 16 drives the two sliding blocks 18 to move oppositely or separately at the same time, and the sliding blocks 18 move to drive the inclination angle of the connecting rod II 10 to change, so that the lifting plate 9 is driven to lift.

Further, in the utility model, the electric push rod 5 is fixedly connected to the bottom of the lifting plate 9, the first connecting rod 6 is fixedly connected to the telescopic end of the electric push rod 5, the connecting shaft 7 is fixedly connected to one end of the first connecting rod 6 far away from the electric push rod 5, the traction head comprises a third connecting rod 22 fixedly connected with the side wall of the vehicle body 3, and a connecting ring 21 is fixedly connected to one end of the third connecting rod 22 far away from the vehicle body 3. Specifically, the electric push rod 5 can drive the first connecting rod 6 to lift, and the first connecting rod 6 drives the connecting shaft 7 to lift, so that the connecting shaft 7 can penetrate into the connecting ring 21 from the lower part of the connecting ring 21, and the traction head and the traction tail are connected together.

Furthermore, the traction tail part further comprises two inserting rods 8 fixedly connected to the side wall of the lifting plate 9, the two inserting rods 8 are symmetrically arranged, the traction head part further comprises springs 2 fixedly connected to the side wall of the vehicle body 3, one ends of the springs 2, far away from the vehicle body 3, are fixedly connected with inserting sleeves 1, and one ends of the inserting sleeves 1, far away from the springs 2, are provided with inserting holes matched with the inserting rods 8. Specifically, the inserted link 8 is inserted into the insertion hole, the butt joint of the traction head and the traction tail is completed, and compared with the connection only through the connecting shaft 7 and the connecting ring 21, the left-right swing amplitude of the vehicle body 3 can be reduced through the arrangement of the spring 2.

Further, in the present utility model, one end of the worm 12 far away from the motor 15 is rotatably connected with a first support plate 11, the first support plate 11 is fixedly connected with a fixed plate 13, two ends of the bidirectional screw 16 are rotatably connected with a second support plate 14, and the second support plate 14 is fixedly connected with the fixed plate 13. Specifically, the first support plate 11 supports the worm 12, and the second support plate 14 supports the bi-directional screw 16.

Further, in the present utility model, a limiting rod 19 is fixedly connected between the second support plates 14, and the limiting rod 19 penetrates through the sliding block 18 and is slidably connected with the sliding block 18. Specifically, the limiting rod 19 plays a role in limiting the sliding block 18, so that the sliding block 18 cannot rotate, and a threaded transmission is formed between the sliding block 18 and the bidirectional screw rod 16.

Further, the alignment device in the utility model comprises an infrared emitter 20 and an infrared receiver, wherein the infrared emitter 20 is arranged on the lifting plate 9, the infrared receiver is arranged on one side of the vehicle body 3 close to the connecting ring 21, and a plurality of infrared emitters 20 and infrared receivers are arranged in a one-to-one correspondence manner. Specifically, the infrared transmitter 20 can generate infrared rays, the infrared receiver can receive the infrared rays, when the infrared receiver receives the infrared rays, the inserted link 8 is coaxial with the plug bush 1, so that the traction head and the traction tail can be aligned through infrared induction between the infrared transmitter 20 and the infrared receiver, the accuracy of plugging of the inserted link 8 and the plug bush 1 is ensured, and after the inserted link 8 and the plug bush 1 are plugged, the connecting shaft 7 is positioned under the connecting ring 21.

It should be noted that, the spiral lift angle of the worm 12 is smaller than the equivalent friction angle between the meshing teeth of the worm 12 and the worm wheel 17, so that the worm 12 and the worm wheel 17 can realize the self-locking effect, the motor 15 in the utility model adopts a brake motor, the brake motor is a motor provided with an electromagnetic brake, the electromagnetic brake is powered on and attracted when the motor is powered on, at the moment, the motor is not braked, and is powered off when the motor is powered off, the motor is braked, so that the motor 15 has the self-locking function, and double self-locking is realized through the worm wheel 17, the worm 12 and the motor 15, so that the lifting plate 9 has a more stable structure and cannot generate height change under the action of external force.

Working principle: when the utility model is used, the vehicle body 3A which can work is used for pulling the vehicle body 3B which can not work, the vehicle body 3A is moved to the vicinity of the vehicle body 3B through the moving wheel 4, the pulling tail part of the vehicle body 3A is opposite to the pulling head part of the vehicle body 3B, then the motor 15 is started to drive the lifting plate 9 to lift, the infrared emitter 20 and the infrared receiver are used for aligning, the inserted link 8 in the pulling tail part of the vehicle body 3A is opposite to the inserted link 1 in the pulling head part of the vehicle body 3B, then the vehicle body 3A moves towards the direction of the vehicle body 3B, the inserted link 8 is inserted into the inserted link 1, the connecting shaft 7 is positioned under the connecting ring 21 at the moment, then the electric push rod 5 is started, the connecting shaft 7 is pushed to be inserted into the connecting ring 21 upwards, and the connection between the pulling tail part of the vehicle body 3A and the pulling head part of the vehicle body 3B is completed, and the vehicle body 3B can be pulled through the vehicle body 3A.

The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.

Claims

1. A draw gear for AGV dolly, including the automobile body, set up at the removal wheel of automobile body bottom and set up the counterpoint device in automobile body both sides, its characterized in that: the automobile body is equipped with traction mechanism, traction mechanism is including setting up the head and the afterbody that pulls in the automobile body both sides, the afterbody that pulls includes the fixed plate of rigid coupling at the automobile body lateral wall, fixed plate one side rigid coupling has the motor, the coaxial rigid coupling's of output shaft of motor worm, worm meshing has the worm wheel, the coaxial rigid coupling of worm wheel has two-way lead screw, two-way lead screw sliding connection has the slider, the slider symmetry is provided with two, two-way lead screw top is equipped with the lifter plate, it has connecting rod two to articulate between lifter plate and the slider, lifter plate bottom rigid coupling has electric putter, electric putter's flexible end rigid coupling has connecting rod one, electric putter's one end rigid coupling has the connecting axle to keep away from to the connecting rod one, the head that pulls includes the connecting rod three with the automobile body lateral wall rigid coupling, connecting rod one end rigid coupling that the automobile body is kept away from to the connecting rod three has the go-between.

2. A traction mechanism for an AGV cart as set forth in claim 1 wherein: the traction tail part also comprises two inserted bars fixedly connected to the side wall of the lifting plate, and the two inserted bars are symmetrically arranged.

3. A traction mechanism for an AGV cart as set forth in claim 2 wherein: the traction head part further comprises a spring fixedly connected to the side wall of the vehicle body, one end, far away from the vehicle body, of the spring is fixedly connected with a plug bush, and one end, far away from the spring, of the plug bush is provided with a jack matched with the plug rod.

4. A traction mechanism for an AGV cart as set forth in claim 1 wherein: one end of the worm far away from the motor is rotationally connected with a first supporting plate, the first supporting plate is fixedly connected with a fixed plate, two ends of the bidirectional screw rod are rotationally connected with a second supporting plate, and the second supporting plate is fixedly connected with the fixed plate.

5. A traction mechanism for an AGV cart as set forth in claim 4 wherein: and a limiting rod is fixedly connected between the second supporting plates, penetrates through the sliding block and is in sliding connection with the sliding block.

6. A traction mechanism for an AGV cart as set forth in claim 1 wherein: the alignment device comprises an infrared emitter and an infrared receiver, wherein the infrared emitter is arranged on the lifting plate, the infrared receiver is arranged on one side of the vehicle body, which is close to the connecting ring, and the infrared emitter and the infrared receiver are respectively provided with a plurality of infrared receivers and are in one-to-one correspondence.