Shuttle vehicle with double-stroke pallet forks

Abstract

The shuttle vehicle comprises a vehicle body and is provided with the pallet fork, and the pallet fork comprises two fork plate mechanisms which are oppositely arranged and a transmission device; the fork plate mechanism comprises an outer fork plate, a middle fork plate, an inner fork plate and a stroke doubling assembly, the outer fork plate is fixed to the vehicle body, the middle fork plate is in transmission connection with the transmission device, and the inner fork plate is in sliding connection with the middle fork plate; the double-stroke assembly comprises two belt transmission sets arranged in a mirror image mode, each belt transmission set is composed of a differential wheel and a second belt, the differential wheels are rotationally connected with the middle fork plate, the two ends of the second belts are fixed to the outer fork plate and the inner fork plate respectively, and the second belts are wound around the differential wheels and then rotate and reverse. When the transmission device drives the middle fork plate to move by the displacement A, the displacement A can be transmitted to the double-stroke assembly, the two belt transmission sets superpose the displacement A and then transmit the displacement A to the inner fork plate so as to drive the inner fork plate to move by the displacement B, and the displacement B is two times of the displacement A.

Description

TECHNICAL FIELD

[0001] The utility model relates to a shuttle vehicle technical field, especially a kind of shuttle vehicle with double-length fork. BACKGROUND

[0002] As an important transport equipment in intelligent warehousing system, shuttle vehicle is a small flexible and fast automated logistics trolley, mainly used as a handling tool for transporting goods.

[0003] And the material box shuttle vehicle is one of the shuttle vehicles with double-length fork, which is mainly used for carrying material box, and the fork is set on the material box shuttle vehicle to access the material box. At present, the extension of the fork of the general material box shuttle vehicle is realized by using gear and rack transmission.

[0004] However, in the prior art, when facing the demand of large fork extension, the general method is to extend the stroke of the rack. However, due to the complex internal mechanism design of the shuttle vehicle, the shuttle vehicle itself is not small and light, and after extending the stroke of the rack, the volume of the shuttle vehicle becomes larger. Therefore, how to increase the stroke of the fork while avoiding the large volume of the shuttle vehicle becomes a problem to be solved.

[0005] Therefore, the present application proposes a technical solution to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at at least solving one of the technical problems existing in the prior art. Therefore, the utility model proposes a shuttle vehicle with double-length fork, wherein the fork of the shuttle vehicle is provided with a double-length belt group, and the moving stroke of the fork is enlarged without increasing the overall volume of the shuttle vehicle, thereby increasing the stroke of the fork and meeting the production demand.

[0007] According to the shuttle vehicle with double-length fork of the utility model embodiment, the shuttle vehicle comprises:

[0008] The vehicle body is provided with a fork, and the fork comprises two oppositely arranged fork plate mechanisms and a transmission device.

[0009] The fork plate mechanism comprises an outer fork plate, a middle fork plate, an inner fork plate and a double-length assembly. The outer fork plate is fixed to the vehicle body. The middle fork plate is in transmission connection with the transmission device. The inner fork plate is in slidable connection with the middle fork plate.

[0010] The double-length assembly comprises two mirror-image belt transmission groups. The belt transmission group is composed of a differential gear and a second belt. The differential gear is in rotational connection with the middle fork plate. The two ends of the second belt are fixed to the outer fork plate and the inner fork plate respectively. The second belt is wound around the differential gear and then reverses the direction.

[0011] When the transmission device drives the middle fork plate to move displacement A, the displacement A can be transmitted to the range multiplier assembly, and the two belt drive groups are superimposed after transmitting the displacement A to the inner fork plate to drive the inner fork plate to move displacement B, which is twice the displacement A.

[0012] The shuttle vehicle with the range multiplier fork has at least the following beneficial effects: the fork adopts a three-layer fork plate mode, and in the case of the same driving length, the extension stroke of the inner fork plate is multiplied by the formation of the superposition of the two belt drive groups.

[0013] The shuttle vehicle with the range multiplier fork has at least the following beneficial effects: the fork adopts a three-layer fork plate mode, and in the case of the same driving length, the extension stroke of the inner fork plate is multiplied by the formation of the superposition of the two belt drive groups.

[0014] The shuttle vehicle with the range multiplier fork has at least the following beneficial effects: the fork adopts a three-layer fork plate mode, and in the case of the same driving length, the extension stroke of the inner fork plate is multiplied by the formation of the superposition of the two belt drive groups.

[0015] The shuttle vehicle with the range multiplier fork has at least the following beneficial effects: the fork adopts a three-layer fork plate mode, and in the case of the same driving length, the extension stroke of the inner fork plate is multiplied by the formation of the superposition of the two belt drive groups.

[0016] The shuttle vehicle with the range multiplier fork has at least the following beneficial effects: the fork adopts a three-layer fork plate mode, and in the case of the same driving length, the extension stroke of the inner fork plate is multiplied by the formation of the superposition of the two belt drive groups.

[0017] The shuttle vehicle with the range multiplier fork has at least the following beneficial effects: the fork adopts a three-layer fork plate mode, and in the case of the same driving length, the extension stroke of the inner fork plate is multiplied by the formation of the superposition of the two belt drive groups.

[0018] The shuttle vehicle with the range multiplier fork has at least the following beneficial effects: the fork adopts a three-layer fork plate mode, and in the case of the same driving length, the extension stroke of the inner fork plate is multiplied by the formation of the superposition of the two belt drive groups.

[0019] According to the shuttle vehicle with double-length forks provided in the embodiment of the present application, the outer fork plate is provided with an adjusting groove, one end of the third transmission wheel is connected with the adjusting groove, and the third transmission wheel can be moved along the adjusting groove to realize position adjustment, so that the lower transmission section is away from or close to the vehicle body.

[0020] According to the shuttle vehicle with double-length forks provided in the embodiment of the present application, the first belt is a double-tooth surface synchronous belt, the middle fork plate is connected with a rack at the bottom, and the rack is in meshing transmission with the upper transmission section.

[0021] According to the shuttle vehicle with double-length forks provided in the embodiment of the present application, the transmission device further comprises a first driving mechanism, the first driving mechanism comprises a driver and a connecting shaft connected with the driving end of the driver, and the connecting shaft is connected with the transmission wheel set.

[0022] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0023] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0024] Figure 1 It is a structure diagram of the fork of the embodiment of the present application;

[0025] Figure 2 It is Figure 1 It is an enlarged view of the mark A;

[0026] Figure 3 It is a structure exploded view of the fork plate mechanism of the embodiment of the present application;

[0027] Figure 4 It is a structure diagram of the shuttle vehicle with double-length forks of the embodiment of the present application;

[0028] Figure 5 It is a structure schematic diagram of the fork plate mechanism of the embodiment of the present application in a non-working state;

[0029] Figure 6 It is a structure schematic diagram of the fork plate mechanism of the embodiment of the present application in an extended working state;

[0030] Figure 7 It is a structure schematic diagram of the transmission wheel assembly of the embodiment of the present application.

[0031] Explanation of reference signs:

[0032] Vehicle body 1;

[0033] Fork 2;

[0034] Avoidance space 3;

[0035] Fork plate mechanism 100; outer fork plate 110; middle fork plate 120; rack 121; inner fork plate 130; lever 131; differential wheel 140; second belt 150; first guide assembly 160; first guide rail 161; first sliding block 162; second guide assembly 170; second guide rail 171; second sliding block 172;

[0036] Transmission device 200; first belt 210; upper transmission section 211; lower transmission section 212; first transmission wheel 220; second transmission wheel 230; third transmission wheel 240; driver 250; connecting shaft 260. DETAILED DESCRIPTION

[0037] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, and are used to explain the present application, and cannot be understood as a limitation of the present application.

[0038] In the description of the present application, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0039] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is two or more. Greater than, less than, more than, etc. are understood as not including the number, and above, below, etc. are understood as including the number. If the first and the second are described, they are only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0040] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application according to the specific content of the technical scheme.

[0041] Reference Figures 1 to 7The utility model embodiment provides a kind of with double range fork 2, including vehicle body 1, is provided with fork 2, fork 2 includes two oppositely arranged fork plate mechanism 100, transmission device 200;Fork plate mechanism 100 includes outer fork plate 110, middle fork plate 120, inner fork plate 130 and double range assembly, outer fork plate 110 is fixed on vehicle body 1, middle fork plate 120 is transmissionally connected with transmission device 200, and inner fork plate 130 is slidably connected with middle fork plate 120;Double range assembly includes two mirror image settings belt drive group, belt drive group is made of differential wheel 140 and second belt 150, differential wheel 140 is rotationally connected with middle fork plate 120, and the two ends of second belt 150 are respectively fixed on outer fork plate 110 and inner fork plate 130, and second belt 150 is wound after differential wheel 140 and turns change direction.

[0042] Wherein, rotatable shift lever 131 is connected on inner fork plate 130.

[0043] Specifically, as shown in Figures 5 to 6 When transmission device 200 drives middle fork plate 120 to move displacement A, displacement A can be transmitted to double range assembly, and the belt drive group of double range assembly is transmitted to inner fork plate 130 after superimposing displacement A, to drive inner fork plate 130 to move displacement B, wherein displacement B is twice displacement A, so that the stroke of inner fork plate 130 is multiplied.

[0044] It can be understood that fork 2 adopts three-layer plate fork, wherein, when middle fork plate 120 is driven back and forth by transmission device 200, inner fork plate 130 is also driven back and forth by belt drive group, and when inner fork plate 130 is extended to take goods, inner fork plate 130 cooperates with shift lever 131 to realize material box. Wherein, a plurality of shift levers 131 can be provided on inner fork plate 130 to adapt to material boxes of different sizes.

[0045] In addition, fork 2 utilizes double range assembly, and under the condition of equal driving length, the extension stroke of inner fork plate 130 is multiplied by the formation of superposition of two belt drive groups. And under the condition of equal driving speed, the extension speed of inner fork plate 130 is doubled, effectively improving the response speed of shuttle vehicle.

[0046] The shuttle vehicle of the application can realize a larger goods carrying distance under limited driving displacement by setting double range fork 2, improve the efficiency and flexibility of the warehouse system, and avoid the increase of the volume of the shuttle vehicle when the stroke increases, so that the structure of the shuttle vehicle is more compact.

[0047] According to some embodiments of the application, fork plate mechanism 100 includes first guide assembly 160 and second guide assembly 170.

[0048] Specifically, as shown in Figure 3As shown, the first guide assembly 160 comprises a first guide rail 161 and a first sliding block 162, the first guide rail 161 is fixed on the outer fork plate 110, and the first sliding block 162 is fixed on the middle fork plate 120 close to one side of the outer fork plate 110, and the first guide rail 161 is connected with the first sliding block 162 in a matched mode.

[0049] The second guide assembly 170 comprises a second guide rail 171 and a second sliding block 172, the second sliding block 172 is fixed on the inner fork plate 130, and the second guide rail 171 is fixed on the middle fork plate 120 away from one side of the outer fork plate 110, and the second guide rail 171 is connected with the second sliding block 172 in a matched mode.

[0050] It can be understood that the first guide assembly 160 and the second guide assembly 170 are of the same structure. Among them, the first guide assembly 160 is used to ensure the stable movement of the middle fork plate 120 relative to the outer fork plate 110, and the second guide assembly 170 is used to ensure the stable movement of the inner fork plate 130 relative to the middle fork plate 120.

[0051] Further, in the longitudinal direction, the first guide assembly 160 and the second guide assembly 170 are both provided with two, so as to improve the movement stability of the fork plate and ensure the smoothness of the truck taking goods.

[0052] According to some embodiments of the present application, as Figures 1 to 3 As shown, the transmission device 200 comprises a first belt 210, a transmission wheel set fixed on the outer fork plate 110, and a first driving mechanism.

[0053] Specifically, as Figure 7 As shown, the first belt 210 comprises an upper transmission section 211 and a lower transmission section 212, the lower transmission section 212 and the vehicle body 1 form an avoiding space 3, and the middle fork plate 120 is in transmission connection with the upper transmission section 211. Among them, the transmission wheel set comprises a first transmission wheel 220, a second transmission wheel 230 and a third transmission wheel 240 arranged in a triangular mode, and the first transmission wheel 220 is located at one end away from the avoiding space 3.

[0054] Optionally, the second transmission wheel 230 and the third transmission wheel 240 can be provided with multiple ones according to actual needs.

[0055] Further, the outer fork plate 110 is provided with an adjusting groove, one end of the third transmission wheel 240 is connected with the adjusting groove, and the third transmission wheel 240 can move along the adjusting groove to realize position adjustment, so as to make the lower transmission section 212 away from or close to the vehicle body 1. It can be understood that the third transmission wheel 240 supports the first belt 210 at different positions in the longitudinal direction, so as to realize the change of the size of the avoiding space 3.

[0056] Optionally, the second transmission wheel 230 can adjust the position in the longitudinal direction, and together with the third transmission wheel 240 to realize the tensioning of the first belt 210 and the adjustment of the size of the avoiding space 3.

[0057] Preferably, the first belt 210 of this application is a double-toothed synchronous belt. Correspondingly, a rack 121 is connected to the bottom of the middle fork plate 120. The middle fork plate 120 and the first belt 210 are driven by the rack 121 meshing with the first belt 210, ensuring high efficiency and accuracy of transmission.

[0058] This application provides a clearance space 3 for the passage of the shuttle's second drive mechanism, which is used to rotate the shuttle's wheels to enable the shuttle's movement. This fully utilizes the internal space of the vehicle body 1, making the overall structure of the shuttle more compact and further solving the problem of increased volume due to the complex internal structure of the shuttle, thus reducing the overall volume of the vehicle body 1.

[0059] Furthermore, such as Figure 1 As shown, the first drive mechanism includes a driver 250 and a connecting shaft 260 connected to the drive end of the driver 250. The connecting shaft 260 is connected to the transmission wheel set.

[0060] Preferably, to further reduce the overall size of the shuttle, the driver 250 can be a forward and reverse motor, and the two connecting shafts 260 can be linked by a transmission mechanism. The transmission mechanism is connected to the drive end of the driver 250 so that the driver 250 can drive the two connecting shafts 260 to rotate at the same time, so that the two forks 2 can extend or return to their original positions at the same time.

[0061] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0062] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A shuttle vehicle having a reach fork (2), characterized in that The utility model relates to a truck fork mechanism, including: A truck body (1) is provided with a fork (2), and the fork (2) includes two oppositely arranged fork plate mechanisms (100), a transmission device (200); The fork plate mechanism (100) includes an outer fork plate (110), a middle fork plate (120), an inner fork plate (130) and a double stroke assembly, the outer fork plate (110) is fixed on the truck body (1), the middle fork plate (120) is drivingly connected with the transmission device (200), and the inner fork plate (130) is slidably connected with the middle fork plate (120); The double stroke assembly includes two mirror image arranged belt drive groups, the belt drive group is composed of a differential gear (140) and a second belt (150), the differential gear (140) is rotatably connected with the middle fork plate (120), and the two ends of the second belt (150) are fixed on the outer fork plate (110) and the inner fork plate (130) respectively, the second belt (150) is wound through the differential gear (140) and then reverses the direction of rotation; When the transmission device (200) drives the middle fork plate (120) to move displacement A, displacement A can be transmitted to the double stroke assembly, two belt drive groups are superimposed after displacement A is transmitted to the inner fork plate (130), so as to drive the inner fork plate (130) to move displacement B, and displacement B is twice displacement A.

2. A shuttle vehicle having a double-length fork (2) according to claim 1, characterized in that, The fork plate mechanism (100) includes a first guide assembly (160), the first guide assembly (160) includes a first guide rail (161) and a first sliding block (162), the first guide rail (161) is fixed on the outer fork plate (110), the first sliding block (162) is fixed on the side of the middle fork plate (120) close to the outer fork plate (110), and the first guide rail (161) is connected with the first sliding block (162) in a matched mode.

3. A shuttle vehicle having a double-length fork (2) according to claim 2, characterized in that, Two first guide assemblies (160) are arranged in a spaced mode along the direction from the middle fork plate (120) to the truck body (1).

4. A shuttle vehicle having a double-length fork (2) according to claim 1, characterized in that, The fork plate mechanism (100) includes a second guide assembly (170), the second guide assembly (170) includes a second guide rail (171) and a second sliding block (172), the second sliding block (172) is fixed on the inner fork plate (130), the second guide rail (171) is fixed on the side of the middle fork plate (120) away from the outer fork plate (110), and the second guide rail (171) is connected with the second sliding block (172) in a matched mode.

5. A shuttle vehicle having a double-length fork (2) according to claim 4, characterized in that, Two second guide assemblies (170) are arranged in a spaced mode along the direction from the middle fork plate (120) to the truck body (1).

6. A shuttle vehicle having a double-length fork (2) according to claim 1, characterized in that, The transmission device (200) includes a first belt (210), the first belt (210) includes an upper transmission section (211) and a lower transmission section (212), an avoiding space (3) is formed between the lower transmission section (212) and the truck body (1), and the middle fork plate (120) is drivingly connected with the upper transmission section (211).

7. A shuttle vehicle having a double-length fork (2) according to claim 6, characterized in that, The transmission device (200) further comprises a transmission wheel set fixed to the outer fork plate (110), the transmission wheel set comprising a first transmission wheel (220), a second transmission wheel (230) and a third transmission wheel (240) arranged in a triangular shape, the first transmission wheel (220) being located at one end away from the avoiding space (3).

8. A shuttle vehicle having a double-length fork (2) according to claim 7, characterized in that, The outer fork plate (110) is provided with an adjusting groove, one end of the third transmission wheel (240) is connected with the adjusting groove, and the third transmission wheel (240) can move along the adjusting groove to realize position adjustment, so that the lower transmission section (212) is away from or close to the vehicle body (1).

9. A shuttle vehicle having a double-length fork (2) according to claim 6, characterized in that, The first belt (210) is a double-tooth synchronous belt, the bottom of the middle fork plate (120) is connected with a rack (121), and the rack (121) is in meshing transmission with the upper transmission section (211).

10. A shuttle vehicle having a double-length fork (2) according to claim 7, characterized in that, The transmission device (200) further comprises a first driving mechanism, the first driving mechanism comprising a driver (250) and a connecting shaft (260) connected to the driving end of the driver (250), the connecting shaft (260) being connected with the transmission wheel set.

Images