Reciprocating type goods taking elevator

Abstract

The invention relates to the field of warehouse conveying devices, in particular to a reciprocating type goods taking elevator. The device comprises a frame and a roller type conveying device, the roller type conveying device comprises a bearing mechanism, a mounting shaft, a rotating frame, a conveying roller assembly and two sets of sliding roller assemblies, wherein the bearing mechanism and the mounting shaft are arranged on the lifting frame; the rotating frame is rotationally arranged on the mounting shaft; the conveying roller assembly is arranged on the rotating frame; the two sets of guide assemblies are symmetrically distributed and used for guiding the two sets of sliding roller assemblies respectively, the first hydraulic cylinder drives the conveying roller assembly to rotate through stretching out and drawing back, and each guide assembly comprises a support arranged on the lifting frame, a guide piece arranged on the support, a connecting rod arranged on the sliding roller assemblies and a sliding column arranged at the end of the connecting rod; the guiding piece is provided with an initial channel, a reciprocating guiding channel and a reset channel which are distributed around the installation shaft and allow the sliding column to slide. The number of execution devices is small, the container transfer action is simplified, the transfer conveying action is simple, the cost is low, and maintenance is convenient.

Description

Technical Field

[0001] The present invention relates to the field of warehouse conveying devices, in particular to a reciprocating cargo-picking elevator. Background Art

[0002] Currently, three-dimensional warehouses are gradually replacing traditional flat factory buildings. Using elevators, they enable drop-type transport of multiple layers of goods, reducing labor costs during transportation. For example, in the production of new energy vehicles, required parts are stored in boxes on three-dimensional shelves, which have large storage capacities. When a part is needed, the box can be transferred from the shelf using an elevator.

[0003] Chinese patent publication number CN220148258U discloses a three-dimensional automated warehouse pickup lane vehicle for boxes of varying sizes. The three-dimensional mobile device for picking up and grabbing boxes includes a forward and backward motion drive mechanism, a lifting and moving drive mechanism, a left and right motion drive mechanism, and a box manipulator gripper. The forward and backward motion drive mechanisms and the left and right motion drive mechanisms are each equipped with a corresponding independent drive motor and synchronous belt drive assembly. The lifting and moving drive mechanism is equipped with a lifting drive motor and a spur rack lifting assembly. The left and right box grippers follow the left and right, lifting and moving, and forward and backward motion drive mechanisms to pick up and place boxes. This automatically realizes the automatic connection and transfer of warehouse management tasks.

[0004] However, the above technical solution has the following shortcomings: when transferring boxes from the shelves, due to the large number of actuators in the box-picking and grabbing three-dimensional mobile device, multiple actuators need to work together, the operation is cumbersome, the multiple actuators are expensive, and it is inconvenient to maintain. Summary of the Invention

[0005] The purpose of the present invention is to address the problems existing in the background technology and propose a reciprocating cargo lifting machine with fewer actuators, simplified cargo box transfer action, simple transfer and conveying action, low cost and easy maintenance.

[0006] The technical solution of the present invention is a reciprocating cargo lifting machine, comprising a frame and a roller conveyor device; a roller is provided at the bottom of the frame, and an open channel is provided on one side of the frame, wherein a lifting frame and a lifting mechanism for driving the lifting frame to rise and fall are provided inside; the roller conveyor device comprises a supporting mechanism and a mounting shaft provided on the lifting frame, a rotating frame rotatably provided on the mounting shaft, a conveying roller assembly provided on the rotating frame, two sets of sliding roller assemblies symmetrically distributed about the conveying roller assembly, two sets of guide assemblies symmetrically distributed and respectively used to guide the two sets of sliding roller assemblies, and a first hydraulic cylinder for driving the conveying roller assembly to rotate by telescoping; the sliding roller assembly is slidably provided on the conveying roller assembly; the guide assembly comprises a bracket provided on the lifting frame, a guide member provided on the bracket, a connecting rod provided on the sliding roller assembly, and a sliding column provided at the end of the connecting rod; the guide member has an initial channel, a reciprocating guide channel, and a reset channel distributed around the mounting shaft and for sliding the sliding column; the reciprocating guide channel comprises an outward movement channel, a holding channel, and an inward movement channel distributed in a direction away from the initial channel; the holding channel is parallel to the reset channel and the length of the holding channel is less than the length of the reset channel; the inward movement channel is connected to the reset channel, and the reset channel is connected to the initial channel in an offset manner.

[0007] Preferably, the conveying roller assembly includes a second roller frame arranged on a rotating frame, multiple second roller bodies and multiple rollers rotatably arranged on the second roller frame, the multiple second roller bodies and multiple rollers are distributed side by side, and the telescopic end of the first hydraulic cylinder is rotatably connected to the second roller frame.

[0008] Preferably, the sliding roller assembly includes a roller shaft slidingly arranged on the second roller frame and multiple rollers, a third roller frame arranged at the outer end of the roller shaft, and multiple third roller bodies arranged on the third roller frame for rotation side by side, and the third roller bodies are located outside the rollers.

[0009] Preferably, the third roller frame protrudes from the third roller body in the width direction, and a conveying channel is formed between the two third roller frames of the two sets of sliding roller assemblies.

[0010] Preferably, the supporting mechanism includes a first roller frame rotatably arranged on the mounting shaft and a plurality of first roller bodies rotatably arranged side by side on the first roller frame, and the first roller frame is mounted on the lifting frame.

[0011] Preferably, a second hydraulic cylinder is rotatably provided on the lifting frame, the telescopic end of the second hydraulic cylinder is rotatably connected to one end of the first hydraulic cylinder, and a pushing platform for the rotating frame to push is provided at the bottom of the first roller frame.

[0012] Preferably, a guiding slope is provided at the junction of the reset channel and the initial channel.

[0013] Preferably, a fixed frame is provided at the rear end of the top of the lifting frame, and a plurality of groups of buffer assemblies are arranged in an array on the fixed frame. The buffer assembly includes a fixed cylinder arranged on the fixed frame, a sliding rod slidably arranged on the fixed cylinder, a stopper connected to the outer end of the sliding rod, and a spring sleeved on the outer periphery of the sliding rod and connected to the stopper and the fixed cylinder at both ends respectively.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects:

[0015] The present invention utilizes the first hydraulic cylinder as an actuator, reducing the number of actuators and simplifying the container transfer process. This simplifies transfer and conveying operations, reduces costs, and facilitates maintenance. Under its own weight, the container slides along the inclined sliding roller assembly and conveyor roller assembly onto the support mechanism. Extending the first hydraulic cylinder lifts the container from the shelf and conveniently transports it to the support mechanism via roller conveyor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the structure of an embodiment of the present invention;

[0017] Figure 2 A schematic diagram of a partial structure of a transport container prepared for an embodiment of the present invention;

[0018] Figure 3 Schematic diagram of the process of the third roller body adjusting from the initial state to the cargo lifting state;

[0019] Figure 4 A front view of a local structure of an embodiment of the present invention;

[0020] Figure 5 for Figure 4 A magnified view of the structure at point A;

[0021] Figure 6 Schematic diagram of the structure of the guide, connecting rod and sliding column.

[0022] Figure numerals: 1. frame; 2. roller; 3. lifting frame; 4. first roller frame; 41. pushing platform; 5. first roller body; 6. mounting shaft; 7. rotating frame; 8. second roller frame; 9. second roller body; 10. roller; 11. third roller frame; 12. roller shaft; 13. third roller body; 14. second hydraulic cylinder; 15. first hydraulic cylinder; 16. bracket; 17. guide; 171. initial channel; 172. reciprocating guide channel; 173. reset channel; 18. connecting rod; 19. sliding column; 20. fixed frame; 21. fixed cylinder; 22. sliding rod; 23. stop platform; 24. spring. DETAILED DESCRIPTION

[0023] Example 1, as Figures 1-6As shown, a reciprocating cargo lifting machine proposed in this embodiment includes a frame 1 and a roller conveying device.

[0024] The frame 1 is equipped with rollers 2 at its base, along with a drive mechanism capable of rotating the rollers 2. This allows the entire hoist to move and expand its operating range. The frame 1 has an open passageway on one side, housing a lifting frame 3 and a lifting mechanism that drives it upward and downward. The frame 1 includes a guide structure to guide the lifting frame 3. Both the guide structure and the lifting mechanism utilize existing structures found in existing hoists.

[0025] The roller conveyor moves up and down within the open passageway of the frame 1, preventing interference between structures. The roller conveyor comprises a support mechanism and mounting shaft 6 mounted on the lifting frame 3, a rotating frame 7 rotatably mounted on the mounting shaft 6, a conveyor roller assembly mounted on the rotating frame 7, two sets of sliding roller assemblies symmetrically distributed about the conveyor roller assembly, two sets of guide assemblies symmetrically distributed and respectively used to guide the two sets of sliding roller assemblies, and a first hydraulic cylinder 15 that drives the conveyor roller assembly to rotate by telescoping. During the rotation of the two sets of sliding roller assemblies about the mounting shaft 6, the two sets of guide assemblies can move away from or toward each other. The sliding roller assembly is slidably mounted on the conveyor roller assembly. The guide assembly comprises a bracket 16 mounted on the lifting frame 3, a guide member 17 mounted on the bracket 16, a connecting rod 18 mounted on the sliding roller assembly, and a slide column 19 mounted at the end of the connecting rod 18.

[0026] like Figure 2 、 Figure 4 and Figure 6As shown, the guide member 17 has an initial channel 171, a reciprocating guide channel 172, and a reset channel 173, which are distributed around the mounting shaft 6 and for sliding the slide post 19. The guide member 17 has a fan-shaped structure as a whole. The reciprocating guide channel 172 includes an outward movement channel, a holding channel, and an inward movement channel, which are distributed in a direction away from the initial channel 171. The holding channel is parallel to the reset channel 173 and its length is less than that of the reset channel 173. The inward movement channel is connected to the reset channel 173, and the reset channel 173 is connected to the initial channel 171 in an offset manner. In the initial state, the lifting frame 3 is located at the bottom of the frame 1, and the conveying roller assembly and the sliding roller assembly are arranged in an upward tilt. When it is necessary to transport the cargo boxes on the shelf, the lifting frame 3 rises to a position where the supporting mechanism is slightly lower than the bottom height of the cargo boxes. The first hydraulic cylinder 15 contracts, driving the conveyor roller assembly to rotate downward. The conveyor roller assembly then drives the sliding roller assembly downward. During this process, the slide post 19 moves from the initial channel 171 into the outward movement channel of the reciprocating guide channel 172. The slide post 19 drives the sliding roller assembly outward via the connecting rod 18, leaving a distance between the two sets of sliding roller assemblies wider than the width of the cargo box. As the slide post 19 continues to move along the retaining channel, it moves from the retaining channel along the inward movement channel to the bottom of the return channel 173. The two sets of sliding roller assemblies move toward each other until they abut and extend from below the cargo box to the bottom. The sliding roller assembly and the conveyor roller assembly are now horizontally arranged. For a shelf used to hold cargo boxes, the shelf has two platforms on top. The cargo boxes are placed on the platforms, and a space is formed between the two platforms for the two sets of sliding roller assemblies to extend into.

[0027] When transferring the cargo box, the first hydraulic cylinder 15 extends, pushing the conveyor roller assembly to rotate upward, and the slide column 19 moves in the reset channel 173. The conveyor roller assembly drives the sliding roller assembly to rotate upward, and the two sets of sliding roller assemblies remain in a docking state, which can effectively lift the upper cargo box. The sliding roller assembly and the conveyor roller assembly are both in an inclined state, and the cargo box slides onto the supporting mechanism under the action of its own gravity.

[0028] The first hydraulic cylinder 15 continues to extend, causing the slide column 19 to move into the initial channel 171. The two sets of sliding roller assemblies then move slightly apart. The conveyor roller assembly and sliding roller assembly then block one side of the cargo box on the support mechanism, securing the box. At this point, the lifting frame 3 is lowered, and the conveyor roller assembly and sliding roller assembly are rotated outward to prepare for transferring the cargo box off the support mechanism.

[0029] like Figure 6 As shown, a guiding slope is provided at the junction of the reset channel 173 and the initial channel 171 , so as to facilitate the sliding post 19 to slide smoothly from the reset channel 173 into the initial channel 171 .

[0030] This embodiment can use the first hydraulic cylinder 15 as an actuator, simplifying the cargo box transfer action. The transfer and conveying action is simple, low-cost, and easy to maintain. When transferring the cargo box, first retract the first hydraulic cylinder 15, move the two sets of sliding roller assemblies apart, leaving a distance greater than the width of the cargo box, and then move them around to both sides of the cargo box in the width direction. Then, the two sets of sliding roller assemblies are inserted under the cargo box. The first hydraulic cylinder 15 extends, tilting the sliding roller assembly and the conveying roller assembly upward, lifting the cargo box to an inclined state. Under the action of its own gravity, the cargo box slides along the inclined sliding roller assembly and the conveying roller assembly to the supporting mechanism, realizing roller conveying. The contraction and extension action of the first hydraulic cylinder 15 can be used to lift the cargo box from the shelf and convey it to the supporting mechanism, which is very convenient.

[0031] Example 2, as Figures 1-6 As shown, this embodiment proposes a reciprocating cargo lift. Compared to the first embodiment, in this embodiment, the conveying roller assembly includes a second roller frame 8 mounted on a rotating frame 7, a plurality of second roller bodies 9 rotatably mounted on the second roller frame 8, and a plurality of rollers 10. The second roller bodies 9 are staggered with the sliding roller assembly on both sides. When the sliding roller assembly rotates, the sliding roller assembly does not interfere with the guide member 17. The plurality of second roller bodies 9 and the plurality of rollers 10 are arranged side by side, enabling roller conveying of the cargo box. The telescopic end of the first hydraulic cylinder 15 is rotatably connected to the second roller frame 8.

[0032] like Figure 3 As shown, the sliding roller assembly includes a roller shaft 12 that slides between the second roller frame 8 and multiple rollers 10, a third roller frame 11 positioned at the outer end of the roller shaft 12, and multiple third rollers 13 rotatably mounted on the third roller frame 11. The third rollers 13 are positioned outside the rollers 10. The rollers 10 have through-channels through which the roller shafts 12 are inserted, restraining the rollers 10 on the second roller frame 8. The roller shafts 12 provide a rotational support point for the rollers 10 and guide the roller shafts 12 for both outward and inward movement.

[0033] like Figure 3 As shown, the third roller frame 11 protrudes from the third roller body 13 in the width direction, and a conveying channel is formed between the two third roller frames 11 of the two sets of sliding roller assemblies. The two third roller frames 11 can limit the sliding range of the cargo box and prevent the cargo box from falling to other areas.

[0034] This embodiment can realize the movement of two sets of sliding roller assemblies on the conveying roller assembly away from or towards each other, and the third roller body 13 and the roller 10 are staggered. When the third roller bodies 13 in the two sets of sliding roller assemblies are docked, the third roller body 13, the roller 10 and the second roller body 9 are distributed side by side, which can transport the cargo box to the supporting mechanism.

[0035] Example 3, as Figures 1-6As shown, this embodiment proposes a reciprocating cargo lift. Compared to the first embodiment, this embodiment has a support mechanism comprising a first roller frame 4 rotatably mounted on a mounting shaft 6 and a plurality of first rollers 5 rotatably mounted side by side on the first roller frame 4. After the cargo box slides off the inclined sliding roller assembly and conveyor roller assembly, it can continue to slide onto the plurality of first rollers 5 for support, effectively transporting the cargo box to the support mechanism. The first roller frame 4 rests on the lifting frame 3 and can rotate about the mounting shaft 6, swinging upward away from the lifting frame 3 or rotating back onto the lifting frame 3.

[0036] like Figure 4 As shown, a second hydraulic cylinder 14 is rotatably mounted on the lifting frame 3. The telescopic end of the second hydraulic cylinder 14 is rotatably connected to one end of the first hydraulic cylinder 15. A support platform 41 is provided at the bottom of the first roller frame 4, which is pushed by the rotating frame 7. When the lifting frame 3 descends to the bottom, the first hydraulic cylinder 15 is first retracted, rotating the conveyor roller assembly and the sliding roller assembly outward to a horizontal position. At this point, the rotating frame 7 rotates until it contacts the bottom surface of the support platform 41. Subsequently, the second hydraulic cylinder 14 is retracted, causing the rotating frame 7 to push the support platform 41 counterclockwise, thereby driving the first roller frame 4 counterclockwise rotation. This adjusts the support mechanism, the conveyor roller assembly, and the sliding roller assembly to a sequentially distributed downwardly inclined position. The cargo box on the first roller body 5 slides down under its own weight, and the cargo box is transported from the elevator to the ground or other receiving platform.

[0037] This embodiment can realize roller conveying and transferring of the cargo box on the supporting mechanism through the action of the second hydraulic cylinder 14 based on the action of the first hydraulic cylinder 15, and the action is simple.

[0038] Example 4, as Figures 1-6 As shown, this embodiment proposes a reciprocating cargo lift. Compared with the first embodiment, in this embodiment, a fixed frame 20 is provided at the top rear end of the lifting frame 3. A plurality of buffer assemblies are arranged in an array on the fixed frame 20. The buffer assemblies include a fixed cylinder 21 provided on the fixed frame 20, a slide bar 22 slidably provided on the fixed cylinder 21, a stopper 23 connected to the outer end of the slide bar 22, and a spring 24 sleeved around the outer periphery of the slide bar 22 and connected at both ends to the stopper 23 and the fixed cylinder 21. When the cargo box slides onto the support mechanism, it hits the stopper 23, which compresses the spring 24, cushioning the impact and preventing the cargo box from falling off the support mechanism.

[0039] In this embodiment, when the cargo box is lifted from the shelf and slides along the inclined sliding roller assembly and the conveying roller assembly onto the supporting mechanism, the buffer assembly can limit the position of the cargo box and buffer the impact.

[0040] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A reciprocating cargo elevator, characterized in that: include: A frame (1) is provided with a roller (2) at the bottom, has an open channel on one lateral side, and is provided with a lifting frame (3) and a lifting mechanism for driving the lifting frame (3) to move upward and downward; The roller conveying device comprises a supporting mechanism and a mounting shaft (6) arranged on a lifting frame (3), a rotating frame (7) rotatably arranged on the mounting shaft (6), a conveying roller assembly arranged on the rotating frame (7), two sets of sliding roller assemblies symmetrically distributed about the conveying roller assembly, two sets of guide assemblies symmetrically distributed and respectively used to guide the two sets of sliding roller assemblies, and a first hydraulic cylinder (15) for driving the conveying roller assembly to rotate by telescoping, wherein the sliding roller assembly is slidably arranged on the conveying roller assembly, and the guide assembly comprises a bracket (16) arranged on the lifting frame (3), a guide member (17) arranged on the bracket (16), and a guide member (18) arranged on the sliding roller assembly. A connecting rod (18) and a sliding column (19) arranged at the end of the connecting rod (18); a guide member (17) having an initial channel (171) distributed around the installation axis (6) and for the sliding column (19) to slide, a reciprocating guide channel (172) and a reset channel (173); the reciprocating guide channel (172) includes an outward moving channel, a holding channel and an inward moving channel distributed in a direction away from the initial channel (171); the holding channel is parallel to the reset channel (173) and the length of the holding channel is less than the length of the reset channel (173); the inward moving channel is connected to the reset channel (173), and the reset channel (173) is connected to the initial channel (171) in a staggered manner.

2. A reciprocating cargo lift according to claim 1, characterized in that: The conveying roller assembly comprises a second roller frame (8) arranged on a rotating frame (7), a plurality of second roller bodies (9) and a plurality of rollers (10) rotatably arranged on the second roller frame (8), the plurality of second roller bodies (9) and the plurality of rollers (10) being distributed side by side, and a telescopic end of a first hydraulic cylinder (15) being rotatably connected to the second roller frame (8).

3. A reciprocating cargo lift according to claim 2, characterized in that: The sliding roller assembly comprises a roller shaft (12) slidingly arranged on a second roller frame (8) and a plurality of rollers (10), a third roller frame (11) arranged at the outer end of the roller shaft (12), and a plurality of third roller bodies (13) arranged on the third roller frame (11) and rotating side by side, wherein the third roller bodies (13) are located outside the rollers (10).

4. A reciprocating cargo lift according to claim 3, characterized in that: The third roller frame (11) protrudes from the third roller body (13) in the width direction, and a conveying channel is formed between the two third roller frames (11) of the two sets of sliding roller assemblies.

5. The reciprocating cargo lifting machine according to claim 1, characterized in that: The supporting mechanism comprises a first roller frame (4) rotatably arranged on a mounting shaft (6) and a plurality of first roller bodies (5) rotatably arranged side by side on the first roller frame (4); the first roller frame (4) is mounted on a lifting frame (3).

6. A reciprocating cargo lifting machine according to claim 5, characterized in that: A second hydraulic cylinder (14) is rotatably provided on the lifting frame (3), and a telescopic end of the second hydraulic cylinder (14) is rotatably connected to one end of the first hydraulic cylinder (15). A supporting platform (41) for being pushed by the rotating frame (7) is provided at the bottom of the first roller frame (4).

7. The reciprocating cargo lifting machine according to claim 1, characterized in that: A guiding slope is provided at the junction of the reset channel (173) and the initial channel (171).

8. The reciprocating cargo lifting machine according to claim 1, characterized in that: A fixing frame (20) is provided at the rear end of the top of the lifting frame (3). A plurality of buffer assemblies are arranged in an array on the fixing frame (20). The buffer assemblies include a fixing cylinder (21) provided on the fixing frame (20), a slide rod (22) slidably provided on the fixing cylinder (21), a stopper (23) connected to the outer end of the slide rod (22), and a spring (24) sleeved on the outer periphery of the slide rod (22) and connected to the stopper (23) and the fixing cylinder (21) at both ends.

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