Novel AGV jacking mechanism

Abstract

The utility model discloses a novel AGV jacking mechanism which comprises two upper supporting connecting rods, two lower supporting connecting rods and two transverse pull rods. One of the two upper supporting connecting rods is hinged to one of the two lower supporting connecting rods through a first hinge shaft; the other one of the two upper support connecting rods is hinged with the other one of the two lower support connecting rods through a second hinge shaft; the two transverse pull rods are arranged on the two sides of the novel AGV jacking mechanism correspondingly, and the two ends of one transverse pull rod are fixedly connected to the two corresponding ends of the first hinge shaft and the two corresponding ends of the second hinge shaft through fasteners correspondingly. The two ends of the other transverse pull rod are fixedly connected to the other two corresponding ends of the first hinge shaft and the second hinge shaft through fasteners respectively. According to the novel AGV jacking mechanism, the rotational degree of freedom between the transverse pull rod and the first hinge shaft and the rotational degree of freedom between the transverse pull rod and the second hinge shaft are limited, rotation and loosening cannot occur after long-time use, and the jacking stability of the jacking mechanism is higher.

Description

Technical Field

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

[0002] The supporting link and the tie rod of the lifting mechanism of the existing AGV (handling robot) are hingedly connected through sliding bearings and articulated shafts, and then the two sides of the supporting link are axially limited by the end caps and fixings at both ends of the articulated shaft. The rotational freedom of the shaft of such a structure is not restricted, that is, the supporting link and the tie rod are free to rotate relative to the articulated shaft. When the sliding bearing is worn out, the stability of the shaft rotation structure between the supporting link, the tie rod and the articulated shaft will deteriorate, thereby affecting the stability of the lifting operation. Utility Model Content

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

[0004] A novel AGV lifting mechanism comprises: two upper support links, two lower support links and two transverse tie rods; one of the two upper support links is hingedly connected to one of the two lower support links via a first hinge shaft; the other of the two upper support links is hingedly connected to the other of the two lower support links via a second hinge shaft; the two transverse tie rods are respectively arranged on both sides of the novel AGV lifting mechanism, wherein: the two ends of one transverse tie rod are respectively fixedly connected to the corresponding two ends of the first hinge shaft and the second hinge shaft via fasteners, and the two ends of the other transverse tie rod are respectively fixedly connected to the corresponding other two ends of the first hinge shaft and the second hinge shaft via fasteners.

[0005] Furthermore, the fastener is formed with a clamping portion for clamping the outer periphery of the first hinge shaft or the second hinge shaft; the clamping portion is formed with two locking ends for pressing the clamping portion onto the outer periphery of the first hinge shaft or the second hinge shaft; the locking end is formed with a locking hole; the inner thread of the locking hole is provided with a locking screw for adjusting the distance between the two locking ends to lock the clamping portion.

[0006] Furthermore, the fastener is formed with a through hole; fixing holes for fixing the fastener are respectively formed at both ends of the tie rod; the fastener is fixed to the end of the tie rod by passing a screw through the through hole and screwing into the fixing hole.

[0007] Furthermore, both ends of the tie rod are respectively formed with mounting insertion positions for partially inserting the fastener; and the fixing hole is formed at the bottom of the mounting insertion position.

[0008] Furthermore, recesses for cooperating with the blocking arms of the insertion position are respectively formed on the upper side and the lower side of the fastener.

[0009] Furthermore, the inner side of the clamping portion for contacting the first hinge shaft or the second hinge shaft is provided with a locking pad layer for increasing the clamping locking force.

[0010] Furthermore, the fasteners at both ends of the tie rod are integrally formed with the tie rod.

[0011] The benefit of the present utility model lies in that the provided new AGV lifting mechanism uses fixings to fix the two ends of the cross railing to the outer periphery of the first hinge shaft and the second hinge shaft respectively, limiting the rotational freedom between the cross tie rod and the first hinge shaft and the second hinge shaft, and its axial limiting structure for the upper supporting link and the lower supporting link is stable, and will not rotate loose even after long-term use, and the lifting stability of the lifting mechanism is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] 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.

[0013] Figure 1 It is a schematic diagram of the novel AGV lifting mechanism involved in this application;

[0014] Figure 2 yes Figure 1 Schematic diagram of the local structure of the new AGV lifting mechanism;

[0015] Figure 3 yes Figure 2 A schematic diagram of a new AGV lifting mechanism in which a tie rod is fixed to a first articulated shaft and a second articulated shaft by fasteners;

[0016] Novel AGV lifting mechanism 10, upper supporting link 11, lower supporting link 12, transverse tie rod 13, mounting plug 131, stop arm 132, fixing hole (not shown), first hinge shaft 14, second hinge shaft 15, fastener 16, clamping portion 161, locking end 162, locking hole 163, recess 164, locking screw 17, through hole (not shown), locking pad 18, drive motor 19, crank 20, push rod 21. DETAILED DESCRIPTION

[0017] 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.

[0018] 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.

[0019] 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.

[0020] like Figures 1 to 3 As shown, a novel AGV lifting mechanism 10 of the present application includes: a driving motor 11, a load plate 12 and a lifting assembly, and the driving motor 11 drives the lifting assembly to lift the load plate 12. 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.

[0021] 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.

[0022] 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.

[0023] The above-mentioned new AGV lifting mechanism 10 uses 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.

[0024] 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.

[0025] 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 .

[0026] 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.

[0027] 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.

[0028] 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 .

[0029] 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 .

[0030] As a specific implementation, the driving motor 11 is a servo motor with greater driving accuracy.

[0031] 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 lifting mechanism, characterized in that: include: two upper support links, two lower support links and two tie rods; One of the two upper support links is hingedly connected to one of the two lower support links via a first hinge shaft; The other of the two upper supporting links is hingedly connected to the other of the two lower supporting links via a second hinge shaft; The two tie rods are respectively arranged on both sides of the novel AGV lifting mechanism, wherein: The two ends of one of the lateral tie rods are fixedly connected to the corresponding two ends of the first articulated shaft and the second articulated shaft by fasteners, and the two ends of the other lateral tie rod are fixedly connected to the corresponding other two ends of the first articulated shaft and the second articulated shaft by fasteners.

2. The novel AGV lifting mechanism according to claim 1 is characterized in that: The fastener is formed with a clamping portion for clamping on the outer periphery of the first hinge shaft or the second hinge shaft; The clamping portion is formed with two locking ends for pressing the clamping portion onto the outer periphery of the first hinge shaft or the second hinge shaft; The locking end is formed with a locking hole; The inner thread of the locking hole is provided with a locking screw for adjusting the distance between the two locking ends to lock the clamping part.

3. The new AGV lifting mechanism according to claim 1 is characterized in that: The fastener is formed with a through hole; Both ends of the tie rod are respectively formed with fixing holes for fixing the fasteners; The fastener is fixed to the end of the tie rod by passing a screw through the through hole and screwing into the fixing hole.

4. The novel AGV lifting mechanism according to claim 3 is characterized in that: Both ends of the tie rod are respectively formed with installation insertion positions for partially inserting the fastener; The fixing hole is formed at the bottom of the installation position.

5. The novel AGV lifting mechanism according to claim 4 is characterized in that: The upper side and the lower side of the fastener are respectively formed with recesses for matching the blocking arms of the installation insertion position.

6. The novel AGV lifting mechanism according to claim 2 is characterized in that: The inner side of the clamping portion for contacting the first hinge shaft or the second hinge shaft is provided with a locking pad layer for increasing the clamping locking force.

7. The novel AGV lifting mechanism according to claim 1 is characterized in that: The fasteners at both ends of the tie rod are integrally formed with the tie rod.

Images