Electric trolley for forklift assembling operation

Abstract

The utility model discloses an electric trolley for forklift assembling operation, and particularly relates to the technical field of forklift assembling, the electric trolley comprises a frame assembly of a box frame structure, the frame assembly comprises a front frame and a rear frame, and the front frame is fixedly connected with the rear frame; a front supporting plate and a rear supporting plate are fixedly mounted on the upper surfaces of the front frame and the rear frame respectively, and a limiting block is fixedly mounted on the upper surface of the rear supporting plate; a front axle assembly is fixedly mounted on the lower surface of the top of the front frame through a front axle mounting bottom plate, and a rear axle assembly is fixedly mounted on the lower surface of the top of the rear frame through a rear axle mounting bottom plate. The box frame structure of the frame assembly is narrow in width, low in gravity center and high in stability, and operation safety is improved; an independent driving unit is adopted, and automatic walking is achieved; the rail wheels are utilized to ensure that the electric trolley runs on the rails, so that the running space is saved; and multiple safety protection functions are realized through various photoelectric switches and safety contact edges.

Description

Technical Field

[0001] This utility model relates to the field of forklift assembly technology, and more specifically, to an electric trolley for forklift assembly operations. Background Technology

[0002] Forklift assembly is known to include component assembly and complete vehicle assembly. Complete forklift assembly first involves mounting and fixing the forklift frame on a fixed or mobile workbench, and then assembling the front axle, rear axle, engine, counterweight, mast, wheels, etc. Currently, the common operation methods are fixed work platforms, non-powered trolley workbench, or automated assembly lines for transfer and assembly.

[0003] Among them, Chinese patent application number 202122227670.5 discloses a special electric trolley for forklift mast line traction and assembly; the solution combines the electric trolley and the driven trolley to form a work platform to realize multi-station operation on the production line; for cases where the mast is long, the electric trolley and the driven trolley use a touch switch to avoid collision between the trolleys.

[0004] However, in actual use, the above solution considers the assembly and transfer of the forklift mast, rather than the assembly of the entire forklift. As the forklift is assembled to a certain extent, the weight will gradually increase. Since the electric trolley and the driven trolley are not an integrated structure, the swaying between the trolleys during transfer and assembly will also increase, and there is a risk of collision between the trolleys. Therefore, an electric trolley for forklift assembly operations is proposed as a further improvement to enhance the safety of the electric trolley when performing forklift assembly operations. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide an electric trolley for forklift assembly operations to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electric trolley for forklift assembly operations, comprising a frame assembly with a box-frame structure.

[0007] The frame assembly includes a front frame and a rear frame, wherein the front frame and the rear frame are fixedly connected.

[0008] The upper surfaces of the front frame and the rear frame are respectively fixedly installed with a front support plate and a rear support plate for supporting the forklift frame, and a limiting block for limiting the rear of the forklift frame is fixedly installed on the upper surface of the rear support plate.

[0009] The front axle assembly is fixedly mounted on the lower surface of the top of the front frame via a front axle mounting base plate, and the rear axle assembly is fixedly mounted on the lower surface of the top of the rear frame via a rear axle mounting base plate.

[0010] Furthermore, a front photoelectric switch is fixedly mounted on the end of the front frame away from the rear frame via a front photoelectric switch mounting plate.

[0011] A bottom photoelectric switch is fixedly installed on the front frame near the rear frame via a positioning photoelectric switch mounting plate.

[0012] A reflector is fixedly mounted on the rear frame at the end furthest from the front frame via a reflector mounting plate.

[0013] Furthermore, a key switch, an operation button, a charging brush plate, and a safety contact edge are fixedly installed at the end of the rear frame away from the front frame.

[0014] Furthermore, both the front axle assembly and the rear axle assembly include track wheels that roll along guide rails.

[0015] Furthermore, it also includes: a drive unit for driving the rotation of the track wheel,

[0016] The drive unit is fixedly mounted on the lower surface of the top of the front frame via a drive unit mounting plate, and the drive unit mounting plate is located between the positioning photoelectric switch mounting plate and the front axle mounting base plate.

[0017] Furthermore, it also includes: a controller and an onboard lithium battery for providing power to the entire vehicle;

[0018] The controller is fixedly mounted on the lower surface of the top of the rear frame, and the on-board lithium battery is fixedly mounted in the middle of the frame assembly and located between the controller and the drive unit.

[0019] The technical effects and advantages of this utility model are as follows:

[0020] 1. Compared with existing technologies, by setting the shape of the frame assembly and adopting a box frame structure, the width is narrow, the center of gravity is low, the stability is high, and the operation safety is improved; by adopting an independent drive unit, it can realize automatic movement after manual operation; by using track wheels, it can ensure that the electric trolley runs on the track, saving operating space; and by using multiple photoelectric switches and safety contact edges for safety protection, multiple safety protection functions are realized.

[0021] 2. Compared with existing technologies, by setting up an on-board lithium battery and charging brush plate, and utilizing the on-board lithium battery of the electric trolley, and with the charging brush plate located at the rear of the frame assembly, charging at the rear saves space compared to side charging, while ensuring that the parts on the forklift do not interfere with the charging pile during assembly and operation; thus, online charging is achieved, and charging can be carried out simultaneously with work, saving time for individual or manual charging.

[0022] 3. Adopting multi-vehicle, multi-station positioning technology, multiple vehicles and multiple stations can operate automatically. Each vehicle can automatically stop at the next station. It can be started or stopped at any time according to production requirements. The working time of each station can be controlled at any time, improving the controllability of production cycle. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0024] Figure 2 This is a schematic diagram of the internal structure of the frame assembly of this utility model. Figure 1 .

[0025] Figure 3 This is a schematic diagram of the internal structure of the frame assembly of this utility model. Figure 2 .

[0026] Figure 4 This is a schematic diagram of the bottom of the frame assembly of this utility model.

[0027] Figure 5 This is a schematic diagram of the top structure of the frame assembly of this utility model.

[0028] Figure 6 This is a schematic diagram of the internal structure of the frame assembly of this utility model. Figure 3 .

[0029] Figure 7 This is a schematic diagram of the structure of the drive unit mounting plate of this utility model.

[0030] Figure 8 This is a schematic diagram of the track wheel of this utility model.

[0031] Figure 9 This is a diagram showing the usage state of this utility model.

[0032] The attached figures are labeled as follows:

[0033] 1. Chassis assembly;

[0034] 11. Front frame;

[0035] 111. Front photoelectric switch mounting plate; 112. Front photoelectric switch;

[0036] 113. Positioning photoelectric switch mounting plate; 114. Bottom photoelectric switch;

[0037] 115. Drive unit mounting plate; 116. Drive unit;

[0038] 12. Rear frame;

[0039] 121. Reflector mounting plate; 122. Reflector;

[0040] 123. Key switch; 124. Operation button; 125. Charging brush plate; 126. Safety contact edge;

[0041] 127. Controller;

[0042] 2. Front support plate; 3. Rear support plate; 4. Limiting block;

[0043] 5. Front axle mounting base plate; 6. Front axle assembly;

[0044] 7. Rear axle mounting base plate; 8. Rear axle assembly;

[0045] 9. Track wheels; 10. Vehicle-mounted lithium battery. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the scope of the utility model; this utility model is a mobile work platform for forklift assembly production lines, and is an electric trolley used for vehicle assembly operations.

[0047] As attached Figure 1 , 2 An electric trolley for forklift assembly operations, shown in figures 5, 6, and 9, includes a frame assembly 1 with a box-frame structure.

[0048] Among them, the chassis assembly 1 adopts a box frame structure, which is designed to utilize its shape to make it highly stable during transportation due to its low center of gravity; its narrow width ensures that the front and rear wheels of the forklift can be installed from both sides, thus facilitating manual operation.

[0049] The frame assembly 1 is equipped with one normally open and one normally closed contactor to realize automatic charging and vehicle operation discharge.

[0050] The frame assembly 1 includes a front frame 11 and a rear frame 12, with the front frame 11 and the rear frame 12 being fixedly connected.

[0051] The front support plate 2 and the rear support plate 3 for supporting the forklift frame are fixedly installed on the upper surfaces of the front frame 11 and the rear frame 12, respectively. The upper surface of the rear support plate 3 is fixedly installed with a limiting block 4 for limiting the rear of the forklift frame.

[0052] Among them, the front support plate 2 is used to support the front of the forklift frame, while ensuring that the forklift frame does not contact the front frame 11 of the frame assembly 1.

[0053] Among them, the rear support plate 3 is used to support the rear of the forklift frame, while ensuring that the forklift frame does not contact the rear frame 12 of the frame assembly 1.

[0054] Among them, the limiting block 4 is used to limit the rear of the forklift frame, which can prevent the frame from shifting during the forklift assembly process.

[0055] The front axle assembly 6 is fixedly mounted on the lower surface of the top of the front frame 11 via the front axle mounting base plate 5, and the rear axle assembly 8 is fixedly mounted on the lower surface of the top of the rear frame 12 via the rear axle mounting base plate 7.

[0056] Among them, the front axle assembly 6 and the rear axle assembly 8 serve the functions of load bearing and guidance;

[0057] The front axle mounting base plate 5 is installed on the lower surface of the top of the front frame 11 and is located away from the rear frame 12 of the drive unit mounting plate 115. That is, the front axle mounting base plate 5 is installed at the front end of the frame assembly 1 and is used to fix the front axle assembly 6.

[0058] The rear axle mounting base plate 7 is installed on the lower surface of the top of the rear frame 12 and away from the front frame 11, that is, the rear axle mounting base plate 7 is installed at the rear of the frame assembly 1 and is used to fix the rear axle assembly 8.

[0059] In a preferred embodiment, as shown in the appendix Figure 1 , 3 As shown in Figures 4 and 6, a front photoelectric switch 112 is fixedly mounted on the end of the front frame 11 away from the rear frame 12 via a front photoelectric switch mounting plate 111.

[0060] A bottom photoelectric switch 114 is fixedly installed on the front frame 11 near the rear frame 12 via a positioning photoelectric switch mounting plate 113;

[0061] A reflector 122 is fixedly mounted on the end of the rear frame 12 away from the front frame 11 via a reflector mounting plate 121.

[0062] As a safety protection measure of this utility model, the front photoelectric switch 112 and reflector 122 are used to realize automatic parking based on position perception; that is:

[0063] The front photoelectric switch 112 is located at the front end of the frame assembly 1, and the reflector 122 is located at the rear end of the frame assembly 1. When two or more vehicles are running at the work station, when they run to a set distance, the front photoelectric switch 112 will work to stop the wheels of the subsequent electric vehicles, thus playing a safety protection role.

[0064] Among them, the bottom photoelectric switch 114 is located on one side of the bottom of the middle part of the frame assembly 1. When the bottom photoelectric switch 114 is working, it acts on the positioning reflector inside the guide rail to achieve two-stage deceleration and multi-station precise positioning with a positioning accuracy of ±10mm.

[0065] For example, the frame assembly 1 has a front photoelectric switch 112 and a bottom photoelectric switch 114. There are two reflectors on the ground arranged in a line, with a certain distance between them. When the front photoelectric switch 112 and the bottom photoelectric switch 114 contact the first reflector, braking begins. After the electric car has traveled a short distance, the second front photoelectric switch 112 and the bottom photoelectric switch 114 contact the second reflector, achieving secondary braking.

[0066] In a preferred embodiment, as shown in the appendix Figure 1 As shown, a key switch 123, an operation button 124, a charging brush plate 125 and a safety contact edge 126 are fixedly installed at the end of the rear frame 12 away from the front frame 11.

[0067] The rear frame 12 is located at the end furthest from the front frame 11, which is the rear end of the frame assembly 1. The key switch 123 and operation button 124 located at the rear end of the frame assembly 1 are used as control buttons to enable manual operation and can also be used for short-distance position adjustment.

[0068] Among them, the charging brush plate 125 is a metal brush plate that can contact the ground charging pile. With the charging station sensing function, it can realize automatic charging. Using the rear charging saves space compared to the side charging, while ensuring that the parts on the forklift do not interfere with the charging pile during assembly and operation. The safety contact edge 126 adds protection.

[0069] In a preferred embodiment, as shown in the appendix Figure 2 , 6 As shown in Figures 6, 8, and 9, both the front axle assembly 6 and the rear axle assembly 8 include track wheels 9 that roll along guide rails to ensure that the electric trolley of this invention moves within the guide rails.

[0070] In a preferred embodiment, as shown in the appendix Figure 2 As shown, it also includes: a drive unit 116 for driving the track wheel 9 to rotate.

[0071] The drive unit 116 is fixedly mounted on the lower surface of the top of the front frame 11 via the drive unit mounting plate 115, and the drive unit mounting plate 115 is located between the positioning photoelectric switch mounting plate 113 and the front axle mounting base plate 5.

[0072] The drive unit 116 is located at the bottom of the front frame 11 away from the rear frame 12, and the drive unit 116 is the power drive component of the electric vehicle; while the drive unit mounting plate 115 is used to fix the drive unit 116.

[0073] In a preferred embodiment, as shown in the appendix Figure 3 As shown, it also includes: a controller 127 and an on-board lithium battery 10 for providing power for the vehicle's operation;

[0074] The controller 127 is fixedly mounted on the lower surface of the top of the rear frame 12, and the vehicle-mounted lithium battery 10 is fixedly mounted in the middle of the frame assembly 1 and located between the controller 127 and the drive unit 116.

[0075] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0076] Although embodiments of the present invention have been shown and described, it will be understood by 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electric trolley for forklift assembly operations, characterized in that: The chassis assembly (1) includes a box-frame structure. The frame assembly (1) includes a front frame (11) and a rear frame (12), wherein the front frame (11) and the rear frame (12) are fixedly connected. The front support plate (2) and the rear support plate (3) for supporting the forklift frame are fixedly installed on the upper surfaces of the front frame (11) and the rear frame (12), respectively. The upper surface of the rear support plate (3) is fixedly installed with a limiting block (4) for limiting the rear of the forklift frame. The front axle assembly (6) is fixedly mounted on the lower surface of the top of the front frame (11) via the front axle mounting base plate (5), and the rear axle assembly (8) is fixedly mounted on the lower surface of the top of the rear frame (12) via the rear axle mounting base plate (7).

2. The electric trolley for forklift assembly operations according to claim 1, characterized in that: The front photoelectric switch (112) is fixedly installed on one end of the front frame (11) away from the rear frame (12) via the front photoelectric switch mounting plate (111); The front frame (11) near the rear frame (12) has a bottom photoelectric switch (114) fixedly installed by a positioning photoelectric switch mounting plate (113); A reflector (122) is fixedly mounted on the end of the rear frame (12) away from the front frame (11) via a reflector mounting plate (121).

3. The electric trolley for forklift assembly operations according to claim 1, characterized in that: The rear frame (12) is fixedly mounted with a key switch (123), an operation button (124), a charging brush plate (125), and a safety contact edge (126) at the end away from the front frame (11).

4. An electric trolley for forklift assembly operations according to claim 2, characterized in that: Both the front axle assembly (6) and the rear axle assembly (8) include track wheels (9) that roll along guide rails.

5. An electric trolley for forklift assembly operations according to claim 4, characterized in that: Also includes: A drive unit (116) for driving the rotation of the track wheel (9), The drive unit (116) is fixedly mounted on the lower surface of the top of the front frame (11) via a drive unit mounting plate (115), and the drive unit mounting plate (115) is located between the positioning photoelectric switch mounting plate (113) and the front axle mounting base plate (5).

6. An electric trolley for forklift assembly operations according to claim 5, characterized in that: Also includes: The controller (127) and the on-board lithium battery (10) for providing power for the vehicle operation; The controller (127) is fixedly mounted on the lower surface of the top of the rear frame (12), and the on-board lithium battery (10) is fixedly mounted in the middle of the frame assembly (1) and located between the controller (127) and the drive unit (116).

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