Novel AGV scissor fork jacking mechanism

Abstract

The utility model discloses a novel AGV scissor fork jacking mechanism. The novel AGV scissor fork jacking mechanism comprises a driving motor, a load plate and a jacking assembly. A crank is fixed on a motor shaft of the driving motor; one end of the crank is fixedly connected with a long arm; one end of the long arm is rotationally connected to the load plate; the scissor fork assembly comprises a first fork arm and a second fork arm. The middle parts of the first fork arm and the second fork arm are hinged through a hinge shaft; the lower end of the first fork arm is rotationally connected to a fixing base fixed to a chassis of the AGV. An upper sliding block is rotationally mounted at the upper end of the first fork arm; an upper sliding groove is formed in the lower side of the end, facing the driving motor, of the load plate. The upper sliding block is inserted into the upper sliding groove in a sliding mode. The upper end of the second fork arm is rotationally connected to the lower side of the end, away from the driving motor, of the load plate. A lower sliding block is rotationally mounted at the lower end of the second fork arm; a lower sliding groove is formed in a chassis of the AGV. The lower sliding block is inserted into the lower sliding groove in a sliding mode. The novel AGV scissor fork jacking mechanism is simple in structure, low in cost and low in space occupancy rate.

Description

Technical Field

[0001] The utility model relates to a novel AGV scissor fork lifting mechanism. Background Art

[0002] The existing AGV lifting mechanism adopts a crank rocker combined with a double parallel four-bar mechanism or a screw guide rail combined with a scissor fork mechanism. The schematic diagram of the existing AGV lifting mechanism using a crank rocker combined with a double parallel four-bar mechanism has many parts, high cost and high space occupancy; the schematic diagram of the existing AGV lifting mechanism using a screw guide rail combined with a scissor fork mechanism has high cost, poor wear resistance, and inconvenient later maintenance. Utility Model Content

[0003] The utility model provides a new AGV scissor fork lifting mechanism to solve the above-mentioned technical problems, and specifically adopts the following technical solutions:

[0004] A novel AGV scissor fork lifting mechanism comprises: a driving motor, a load plate and a lifting assembly for lifting the load plate; a crank is fixed to the motor shaft of the driving motor; one end of the crank is rotatably connected to a long arm; one end of the long arm is rotatably connected to the load plate; the lifting assembly comprises: two groups of scissor fork assemblies symmetrically arranged on both sides below the load plate; the scissor fork assembly comprises: a first fork arm and a second fork arm; the middle parts of the first fork arm and the second fork arm are hingedly connected by a hinge shaft; the lower end of the first fork arm is rotatably connected to a fixing seat fixed to the chassis of the AGV; an upper slider is rotatably installed on the upper end of the first fork arm; an upper slide groove is provided on the lower side of one end of the load plate facing the driving motor; the upper slider is slidably inserted in the upper slide groove; the upper end of the second fork arm is rotatably connected to the lower side of one end of the load plate away from the driving motor; the lower end of the second fork arm is rotatably installed with a lower slider; the chassis of the AGV is provided with a lower slide groove; the lower slider is slidably inserted in the lower slide groove.

[0005] Furthermore, both the first fork arm and the second fork arm are formed with a limiting portion for interfering with each other to limit the lowest position of the load plate.

[0006] Furthermore, the upper slide groove and the lower slide groove are aligned in the vertical direction.

[0007] Further, the lower slide groove supports the upper slide groove from below when the load plate is at the lowest position.

[0008] Furthermore, the first fork arm and the second fork arm are formed with empty grooves on both sides of the hinge axis for reducing the overall weight.

[0009] Furthermore, a connection seat is provided at the lower side of the end of the load plate away from the driving motor; and the upper end of the second fork arm is rotatably connected to the connection seat.

[0010] Furthermore, the fixing seat supports the connecting seat from below when the load plate is at the lowest position.

[0011] Furthermore, a rotation support seat is formed in the middle of one end of the load plate; and one end of the long arm is rotationally connected to the rotation support seat through a lifting shaft.

[0012] Furthermore, the angle between the long arm and the plane where the load plate is located ranges from 120 degrees to 150 degrees.

[0013] Furthermore, the driving motor is a servo motor.

[0014] The utility model is beneficial in that the provided new AGV scissor fork lifting mechanism adopts a crank to push the load plate to control the lifting of the overall structure, and adjusts the twisting angle of the first fork arm and the second fork arm through the matching structure of the slider and the slide groove. It has a simple structure, low cost and low space occupancy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a schematic diagram of a novel AGV scissor fork lifting mechanism involved in the present application;

[0017] The new AGV scissor fork lifting mechanism 10, driving motor 11, load plate 12, rotating support seat 13, lifting shaft 14, crank 15, long arm 16, scissor fork assembly 17, first fork arm 171, upper slider 172, upper slide groove 173, second fork arm 174, lower slider 175, lower slide groove 176, hinge shaft 177, limit part 178, empty groove 179, fixed seat 18, connecting seat 19. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0019] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0021] like Figure 1 As shown, a novel AGV scissor fork lifting mechanism 10 of the present application includes: a driving motor 11, a load plate 12 and a lifting assembly, and the load plate 12 is lifted by driving the lifting assembly through the driving motor 11. A crank 15 is fixed to the motor shaft of the driving motor 11. One end of the crank 15 is rotatably connected to a long arm 16. One end of the long arm 16 is rotatably connected to the load plate 12. The lifting assembly includes: two sets of scissor fork assemblies 17, and the two sets of scissor fork assemblies 17 are symmetrically arranged on both sides below the load plate 12.

[0022] Specifically, the scissor fork assembly 17 includes: a first fork arm 171 and a second fork arm 174, the middle parts of the first fork arm 171 and the second fork arm 174 are hingedly connected by a hinge shaft 177, the lower end of the first fork arm 171 is rotatably connected to a fixed seat 18 fixed to the chassis of the AGV, the upper end of the first fork arm 171 is rotatably mounted with an upper slider 172, the lower side of the end of the load plate 12 facing the drive motor 11 is provided with an upper slide groove 173, the upper slider 172 is slidably inserted into the upper slide groove 173, the upper end of the second fork arm 174 is rotatably connected to the lower side of the end of the load plate 12 away from the drive motor 11, and the lower end of the second fork arm 174 is rotatably mounted with a lower slider 175. The chassis of the AGV is provided with a lower slide groove 176. The lower slider 175 is slidably inserted into the lower slide groove 176.

[0023] Based on the above-mentioned connection structure, when the driving motor 11 drives the crank 15 to rotate clockwise, the crank 15 pushes the long arm 16 to push the load plate 12 upward. At this time, the first fork arm 171 and the second fork arm 174 of the two scissors fork assemblies 17 support the load plate 12 through their mutual rotation under the upward movement of the load plate 12. The constraint structure limited by the sliding of the slide groove of the slider enables the load plate 12 to move upward in the vertical direction. When the driving motor 11 drives the crank 15 to rotate counterclockwise, the load plate 12 moves downward in the vertical direction, thereby realizing the up and down position adjustment of the load plate 12.

[0024] The above-mentioned new AGV scissor fork lifting mechanism 10 adopts a crank 15 to push the load plate 12 to control the lifting of the overall structure, and adjusts the twisting angle of the first fork arm 171 and the second fork arm 174 through the matching structure of the slider and the slide groove, so that the load plate 12 can achieve up and down translation in the vertical direction. It has a simple structure and does not require a complicated connecting rod lifting structure or a screw drive structure. It has low operating costs and a stable structure. The sliding matching of the slider and the slide groove is wear-resistant, has a low maintenance rate, and has a low space occupancy rate.

[0025] As a specific implementation, the first fork arm 171 and the second fork arm 174 both form a limiting portion 178, through which the first fork arm 171 and the second fork arm 174 can interfere with each other when they rotate relative to a preset position to limit the lowest position of the load plate 12.

[0026] As a specific implementation, the upper slide groove 173 and the lower slide groove 176 are aligned in the vertical direction. When the lower slide groove 176 is at the lowest position of the load plate 12 , the upper slide groove 173 is supported from below, thereby improving the support stability of the load plate 12 .

[0027] As a specific implementation, the first fork arm 171 and the second fork arm 174 are formed with a slot 179 on both sides of the hinge shaft 177 to reduce the overall weight.

[0028] As a specific implementation, a connection seat 19 is provided at the lower side of the end of the load plate 12 away from the drive motor 11, and the upper end of the second fork arm 174 is rotatably connected to the connection seat 19. When the fixing seat 18 is at the lowest position of the load plate 12, the connection seat 19 is supported from below, thereby further improving the support stability of the load plate 12.

[0029] As a specific implementation, a rotating support seat 13 is formed in the middle of one end of the load plate 12 , and one end of the long arm 16 is rotatably connected to the rotating support seat 13 through a lifting shaft 14 , thereby improving the pushing stability of the load plate 12 .

[0030] As a specific implementation, the angle between the long arm 16 and the plane where the load plate 12 is located ranges from 120 degrees to 150 degrees, so as to reduce the energy consumption of pushing the load plate 12 .

[0031] As a specific implementation, the driving motor 11 is a servo motor with greater driving accuracy.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the above embodiments do not limit the utility model in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the utility model.

Claims

1. A new type of AGV scissor fork lifting mechanism, characterized in that: include: A driving motor, a load plate and a lifting assembly for lifting the load plate; A crank is fixed to the motor shaft of the driving motor; One end of the crank is rotatably connected to a long arm; One end of the long arm is rotatably connected to the load plate; The lifting assembly includes: two sets of scissor fork assemblies symmetrically arranged on both sides below the load plate; The scissor fork assembly comprises: a first fork arm and a second fork arm; The middle parts of the first fork arm and the second fork arm are hingedly connected via a hinge shaft; The lower end of the first fork arm is rotatably connected to a fixing seat fixed to the chassis of the AGV; An upper slider is rotatably mounted on the upper end of the first fork arm; An upper slide groove is provided on the lower side of one end of the load plate facing the drive motor; The upper sliding block is slidably inserted into the upper sliding groove; The upper end of the second fork arm is rotatably connected to the lower side of the end of the load plate away from the drive motor; A lower slider is rotatably mounted on the lower end of the second fork arm; The chassis of the AGV is equipped with a downward sliding groove; The lower sliding block is slidably inserted in the lower sliding groove.

2. The new AGV scissor fork lifting mechanism according to claim 1 is characterized in that: The first fork arm and the second fork arm are both formed with a limiting portion for interfering with each other to limit the lowest position of the load plate.

3. The new AGV scissor fork lifting mechanism according to claim 1 is characterized in that: The upper slide groove and the lower slide groove are aligned in the vertical direction.

4. The new AGV scissor fork lifting mechanism according to claim 3 is characterized in that: The lower slide groove supports the upper slide groove from below when the load plate is at the lowest position.

5. The new AGV scissor fork lifting mechanism according to claim 1 is characterized in that: The first fork arm and the second fork arm are formed with empty grooves on both sides of the hinge shaft for reducing the overall weight.

6. The new AGV scissor fork lifting mechanism according to claim 1 is characterized in that: A connecting seat is provided on the lower side of one end of the load plate away from the driving motor; The upper end of the second fork arm is rotatably connected to the connecting seat.

7. The new AGV scissor fork lifting mechanism according to claim 6 is characterized in that: The fixing seat supports the connecting seat from below when the load plate is at the lowest position.

8. The novel AGV scissor fork lifting mechanism according to claim 1 is characterized in that: One end of the load plate is formed with a rotation support seat in the middle; One end of the long arm is rotatably connected to the rotating support seat through a lifting shaft.

9. The novel AGV scissor fork lifting mechanism according to claim 1 is characterized in that: The angle between the long arm and the plane where the load plate is located ranges from 120 degrees to 150 degrees.

10. The novel AGV scissor fork lifting mechanism according to claim 1 is characterized in that: The driving motor is a servo motor.

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