CN219567479U - Telescopic fork - Google Patents

Abstract

The utility model discloses a telescopic fork, which belongs to the technical field of forks and comprises a rack, a workbench, an adjusting sliding table and fork arms; the workbench is connected to the frame in a sliding manner along the vertical direction, and a lifting driving mechanism for driving the workbench to move along the vertical direction is arranged on the frame; the two adjusting sliding tables are oppositely arranged and are connected to the workbench in a sliding manner along a first horizontal direction, and a first horizontal driving mechanism for driving the two adjusting sliding tables to move reversely and synchronously is fixedly arranged on the workbench; and each adjusting sliding table is connected with a fork arm in a sliding manner along a second horizontal direction, and a second horizontal driving mechanism for driving the two fork arms to synchronously move in the same direction is fixedly arranged on the workbench. The utility model has novel and reasonable structural design, can ensure that the turnover condition does not occur in the process of carrying and transferring the tray, and can be suitable for the fork operation of different types of trays.

Description

Telescopic fork

Technical Field

The utility model relates to the technical field of forks, in particular to a telescopic fork.

Background

With the progress of technology, AGV carts are widely used to transport goods in the logistics field and in production workshops. In the use of the AGV trolley, the AGV trolley needs to be matched with a fork for use, and goods are placed on the AGV trolley through the fork or unloaded from the AGV trolley.

In the prior art, the fork is only provided with two basic use functions of telescopic and lifting of the fork arm, so that cargo loading, unloading and transferring operations of the AGV trolley are realized. However, the existing pallet fork does not have the function of adjusting the distance between the two fork arms, and in the actual use process, the placement position of the goods on the pallet may be changed, so that the gravity center of the goods may fall at a position outside the two fork arms, and thus the situation that the pallet and the goods on the pallet are entirely tipped over from the fork arms may occur in the process of carrying the pallet by the pallet fork. In addition, for trays with different dimensions, the spacing between the tray holes is different, and if the spacing between the fork arms is fixed and cannot be adjusted, the two fork arms of the fork may not be inserted into the tray at the same time during use.

For example, chinese patent publication No. CN216549473U discloses a liftable telescopic fork, including frame and syllogic fork, syllogic fork is through fork driving motor telescopic motion, plays the effect to the goods bottom support, frame side movable mounting has the crane, syllogic fork is installed on the crane, and the telescopic direction of syllogic fork is left and right displacement, the frame side is fixed to be equipped with the driving piece, and the driving piece drives the crane reciprocates, the driving piece includes the motor, the frame upper and lower end is equipped with upper shaft and the lower axle of horizontal setting respectively, upper shaft and lower axle head are equipped with chain gear, upper shaft and lower axle are through the chain round joint on chain gear transmission action, upper shaft rotates and drives the lower axle promptly, the crane side is fixed to be equipped with the mounting, the mounting is fixed with the chain, can drive syllogic fork and reciprocate.

It can be seen that the fork of the utility model only has the functions of lifting and stretching, and two fork arms in the three-section fork have no function of adjusting the distance.

Disclosure of Invention

The utility model aims to provide a telescopic fork which aims to solve the problems that the distance between two fork arms of the fork cannot be adjusted in the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a telescopic fork comprises

A frame;

the workbench is connected to the frame in a sliding manner along the vertical direction, and a lifting driving mechanism for driving the workbench to move along the vertical direction is arranged on the frame;

the two adjusting sliding tables are oppositely arranged and are connected to the workbench in a sliding manner along a first horizontal direction, and a first horizontal driving mechanism for driving the two adjusting sliding tables to move reversely and synchronously is fixedly arranged on the workbench;

and fork arms are connected to each adjusting sliding table in a sliding manner along a second horizontal direction, wherein a second horizontal driving mechanism for driving the two fork arms to synchronously move in the same direction is fixedly arranged on the workbench.

Preferably, the lifting driving mechanism is a turbine screw lifter driven by a motor.

Preferably, the first horizontal driving mechanism is a bidirectional transmission screw rod, and two output ends of the bidirectional transmission screw rod are respectively connected with the two adjusting sliding tables.

Preferably, the second horizontal driving mechanism is a linear driving mechanism, a bidirectional expansion plate is fixed on the output end of the linear driving mechanism, the middle part of the bidirectional expansion plate is fixedly connected with the output end of the linear driving mechanism, and two ends of the bidirectional expansion plate are respectively and fixedly connected with two fork arms.

Preferably, the linear driving mechanism is a rodless cylinder or a linear sliding table module.

Preferably, the second horizontal direction is perpendicular to the first horizontal direction.

By adopting the technical scheme, the utility model has the beneficial effects that: according to the utility model, through the arrangement of the first horizontal driving mechanism, the two adjusting sliding tables can reversely and synchronously move in the first horizontal direction, so that the distance between the two fork arms can be flexibly adjusted during use, the gravity centers of the tray and the goods on the tray fall between the two fork arms, and the situation that the tray is overturned in the process of carrying and transferring is ensured as much as possible; in addition, the fork arms with adjustable spacing can be applicable to different types of trays, so that the application range can be effectively expanded; correspondingly, through the arrangement of the bidirectional expansion plate, the distance between the two fork arms is changed, so that the action of the second horizontal driving mechanism is not influenced, and the fork arms can be ensured to normally fork and hold the tray.

Drawings

FIG. 1 is a schematic top view of the present utility model;

fig. 2 is a schematic front view of the present utility model.

In the figure, the device comprises a 1-frame, a 2-workbench, a 21-horizontal chute, a 22-gap, a 3-lifting driving mechanism, a 4-adjusting sliding table, a 5-first horizontal driving mechanism, a 6-fork arm, a 7-second horizontal driving mechanism and an 8-bidirectional expansion plate.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

It should be noted that, in the description of the present utility model, the positional or positional relation indicated by the terms such as "upper", "lower", "left", "right", "front", "rear", etc. are merely for convenience of describing the present utility model based on the description of the structure of the present utility model shown in the drawings, and are not intended to indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The terms "first" and "second" in this technical solution are merely references to the same or similar structures, or corresponding structures that perform similar functions, and are not an arrangement of the importance of these structures, nor are they ordered, or are they of a comparative size, or other meaning.

In addition, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., the connection may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two structures. It will be apparent to those skilled in the art that the specific meaning of the terms described above in this application may be understood in the light of the general inventive concept in connection with the present application.

A telescopic fork, as shown in figures 1 and 2, comprises a frame 1, a workbench 2, an adjusting sliding table 4 and a fork arm 6.

The frame 1 is of an L-shaped structure as a whole and comprises a horizontal base and a vertical wallboard. The workbench 2 is configured into a three-dimensional frame structure formed by splicing metal profiles or a box-shaped structure, the front end and the rear end of the left side surface of the workbench 1 are respectively connected with the vertical wallboard in the frame 1 in a sliding manner through a sliding rail and sliding block structure, and the workbench 2 slides along the vertical direction. In addition, a lifting driving mechanism 3 for driving the workbench 2 to move along the vertical direction is fixedly installed on the vertical wallboard in the frame 1, in this embodiment, the lifting driving mechanism 3 is preferably a chain type lifter, a mounting block is fixed on a chain of the chain type lifter, and the mounting block is connected with the workbench 2, which is not described in detail in this embodiment.

The adjusting sliding table 4 is of a strip-shaped metal structure, two adjusting sliding tables 4 are oppositely arranged on one side of the top surface of the workbench 2, the length directions of the two adjusting sliding tables 4 are parallel to the front-back direction of the telescopic fork, meanwhile, the two adjusting sliding tables 4 are slidably connected to the top surface of the workbench 2 along the first horizontal direction (namely the left-right direction in the figure), for example, horizontal sliding grooves 21 are respectively arranged at the front position and the back position of the top surface of the workbench 2, and horizontal sliding blocks matched with the horizontal sliding grooves 21 are respectively arranged at the front position and the back position of the bottom surface of the two adjusting sliding tables 4. In addition, a first horizontal driving mechanism 5 is fixedly installed in the middle of the top surface of the workbench 1, the first horizontal driving mechanism 5 is located below the two adjusting sliding tables 4, for example, the workbench is installed inside the workbench 2, a gap 22 for the output end of the workbench 2 to extend is formed in the top surface of the workbench 2, the first horizontal driving mechanism 5 is preferably a two-way transmission screw, two output ends of the two-way transmission screw are respectively connected with the two adjusting sliding tables 4 after extending from the gap 22, and accordingly the two adjusting sliding tables 4 are driven to reversely and synchronously move on the workbench 2 through the first horizontal driving mechanism 5.

Each adjustment sliding table 4 is slidably connected with a yoke 6 along a second horizontal direction (front-rear direction in the figure), for example, a sliding groove is formed in the bottom surface of the yoke 6, and a fixed rail matched with the sliding groove is correspondingly installed on the adjustment sliding table 4, wherein the cross section of the sliding groove is configured into a dovetail shape or a T shape so as to prevent the yoke 6 from falling off from the top direction of the adjustment sliding table 4. In addition, a second horizontal driving mechanism 7 for driving the two fork arms 6 to synchronously move in the same direction is fixedly arranged on the workbench 2.

In this embodiment, the second horizontal driving mechanism 7 is configured as a linear driving mechanism, which is preferably a linear slide module driven by a screw, but may be a rodless cylinder in other embodiments. The linear driving mechanism is arranged in the middle of the top surface of the workbench 1 along the front-back direction, the output end of the linear driving mechanism is fixedly provided with a bidirectional expansion plate 8, the bidirectional expansion plate 8 is arranged in the left-right direction, and the middle position is fixedly connected with the output end of the linear driving mechanism through a bolt. The two ends of the bidirectional expansion plate 8 are welded with connecting plates, and the two connecting plates are respectively fixedly connected with the two fork arms 6 through screws.

The reason why the second horizontal driving mechanism 7 directly covers the horizontal sliding groove 21 and the slit 22 is that the distance between adjacent insertion holes on different types of trays is not changed greatly, so the movement amplitude of the two adjusting sliding tables 4 is not usually large, and even if the middle parts of the horizontal sliding groove 21 and the slit 22 are covered by the second horizontal driving mechanism 7, the implementation of the embodiment is not affected.

The working principle of the utility model is as follows:

after a transport device such as an AGV (automatic guided vehicle) transfers a pallet to a telescopic fork provided by the embodiment, the telescopic fork provided by the embodiment starts to work, firstly, a lifting driving mechanism 3 acts to drive a workbench 2 to move along the vertical direction, and a fork arm 6 and an insertion hole on the pallet are positioned at the same height; the first horizontal driving mechanism 5 acts to drive the two adjusting sliding tables 4 to synchronously move reversely until the distance between the two fork arms 6 is the same as the distance between the jacks on the tray, and at the moment, the two fork arms 6 are aligned with the two corresponding jacks on the tray respectively; then the second horizontal driving mechanism 7 acts, and the output end of the second horizontal driving mechanism drives the two fork arms 6 to synchronously move in the same direction through the bidirectional expansion plate 8, so that the two fork arms 6 are respectively inserted into the two jacks on the tray; then, the lifting driving mechanism 3 continues to act to drive the workbench 2 to move upwards along the vertical direction, so that the bottom surface of the tray leaves the AGV trolley, and the weight of the tray is pressed on the two fork arms 6; then the second horizontal driving mechanism 7 acts reversely to drive the two fork arms 6 to reset, so that the pallet is transferred to the telescopic fork from the AGV trolley. Similarly, after the telescopic fork executes a corresponding action process, the tray can be transferred from the telescopic fork to another AGV trolley.

The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, and yet fall within the scope of the utility model.

Claims (6)

1. A telescopic pallet fork, characterized in that: comprising

A frame;

the workbench is connected to the frame in a sliding manner along the vertical direction, and a lifting driving mechanism for driving the workbench to move along the vertical direction is arranged on the frame;

the two adjusting sliding tables are oppositely arranged and are connected to the workbench in a sliding manner along a first horizontal direction, and a first horizontal driving mechanism for driving the two adjusting sliding tables to move reversely and synchronously is fixedly arranged on the workbench;

and fork arms are connected to each adjusting sliding table in a sliding manner along a second horizontal direction, wherein a second horizontal driving mechanism for driving the two fork arms to synchronously move in the same direction is fixedly arranged on the workbench.

2. The telescopic pallet fork according to claim 1, wherein: the lifting driving mechanism is a turbine screw rod lifter driven by a motor.

3. The telescopic pallet fork according to claim 1, wherein: the first horizontal driving mechanism is a bidirectional transmission screw rod, and two output ends of the bidirectional transmission screw rod are respectively connected with the two adjusting sliding tables.

4. The telescopic pallet fork according to claim 1, wherein: the second horizontal driving mechanism is a linear driving mechanism, a bidirectional expansion plate is fixed on the output end of the linear driving mechanism, the middle part of the bidirectional expansion plate is fixedly connected with the output end of the linear driving mechanism, and two ends of the bidirectional expansion plate are respectively and fixedly connected with two fork arms.

5. The telescopic pallet fork according to claim 4, wherein: the linear driving mechanism is a rodless cylinder or a linear sliding table module.

6. The telescopic pallet fork according to claim 1, wherein: the second horizontal direction is perpendicular to the first horizontal direction.