Compact embedded electric lifting device for heavy-load conveying line and lifting method

Abstract

The invention discloses a compact embedded electric lifting device and a lifting method for a heavy-load conveying line. The compact embedded electric lifting device and the lifting method solve the problem of how to design a compact heavy-load lifting device which can meet the lifting requirement of more than 1 ton. After transferred goods on a heavy-load conveying line enter the transfer conveying assembly mounting frame (9), an electric cylinder in the driving electric cylinder assembly (5) is started, the U-shaped walking frame (12) is driven by an output shaft of the electric cylinder to move from right to left, the walking wheels (13-1) walk from right to left along the walking wheel walking guide grooves (3-1), and the U-shaped walking frame (12) moves from right to left along the walking wheel walking guide grooves (3-1). An outer lifting wheel (13-2) abuts against and walks on an outer lifting wheel tread, an inner lifting wheel (13-3) abuts against and walks on an inner lifting wheel tread, and under walking and jacking of the outer lifting wheel and the inner lifting wheel, the transfer conveying assembly mounting frame is matched with a vertical guide shaft (2) through a self-aligning mounting seat (10), so that the transfer conveying assembly is mounted on the outer lifting wheel tread and the inner lifting wheel tread. And upward lifting of the mounting frame of the transshipment conveying assembly is realized.

Description

Technical Field

[0001] The invention relates to a transfer lifting device on a logistics conveying line, in particular to a lifting device arranged at a transfer position on a heavy-load conveying line with a docking height of only 300 mm. Background Art

[0002] The transfer lifting device on the heavy-load conveyor line is used for the transfer of logistics transportation. Its working principle is: when the conveyed material along the left and right directions is transported to the transfer position, the conveying working surface is lifted to the specified height by the lifting mechanism, and then the conveying line mechanism along the front and rear directions transports the conveyed object to the specified position in the other direction; therefore, the lifting device needs to be nested between the two cross conveying devices, and the lifting device needs to occupy a large space. Especially when the weight of the conveyed object exceeds 1 ton, in order to meet the lifting weight requirements, hydraulic scissors, gear rack and other structures are generally used. These structures have the characteristics of complex structure, harsh environment, and large space occupation. When encountering a design space with a maximum lifting space of 300 mm, the above structure cannot meet the layout requirements of the electric drive lifting device. How to design a compact heavy-load lifting device that can meet the lifting requirements of more than 1 ton has become a problem that needs to be solved. Summary of the invention

[0003] The present invention provides a compact embedded electric lifting device and a lifting method for a heavy-load conveyor line, which solves the technical problem of how to design a compact heavy-load lifting device that can meet the lifting requirements of more than 1 ton.

[0004] The present invention solves the above technical problems through the following technical solutions: A compact embedded electric lifting device used in a heavy-load conveyor line comprises a rectangular base plate and a transfer conveying assembly mounting frame; vertical guide shafts in the up-and-down directions are fixedly arranged at the four corners of the top surface of the rectangular base plate, left-right movable guide rails of a traveling frame are arranged on the top surface of the rectangular base plate inside each vertical guide shaft, a driving electric cylinder mounting seat is arranged in the middle of the top surface of the rectangular base plate, and a driving electric cylinder assembly is arranged horizontally on the driving electric cylinder mounting seat along the left and right horizontal directions; a transfer conveying assembly mounting frame is movably arranged directly above the rectangular base plate, and a transfer conveying assembly mounting frame is arranged below the transfer conveying assembly mounting frame. Self-aligning mounting seats are provided at the four corners of the bottom surface, and a wedge-shaped guide block is provided on the lower bottom surface of the transfer and conveying assembly installation frame inside each self-aligning mounting seat; each vertical guide shaft is movably arranged in the corresponding self-aligning mounting seat, so that the transfer and conveying assembly installation frame can be raised and lowered along the vertical guide shaft; a U-shaped walking frame is provided between the rectangular base plate and the transfer and conveying assembly installation frame, and four bearing roller assemblies are provided on the U-shaped walking frame, and each bearing roller assembly is provided between the corresponding left and right moving guide rails and the wedge-shaped guide block; the U-shaped walking frame is connected to the push rod end of the driving electric cylinder assembly.

[0005] The bearing roller assembly is composed of a wheel axle, a traveling wheel, an outer lifting wheel and an inner lifting wheel. The traveling wheel, the outer lifting wheel and the inner lifting wheel are arranged in parallel on the wheel axle, and the traveling wheel is arranged in the center; a traveling wheel traveling guide groove is arranged in the middle of the left and right movable guide rails; an outer lifting wheel tread and an inner lifting wheel tread are respectively arranged on the inclined lower bottom surface of the wedge-shaped guide rail block, and a long strip groove is arranged on the inclined lower bottom surface of the wedge-shaped guide rail block between the outer lifting wheel tread and the inner lifting wheel tread; the traveling wheel travels in the traveling wheel traveling guide groove, the outer lifting wheel is top-connected on the outer lifting wheel tread, and the inner lifting wheel is top-connected on the inner lifting wheel tread; a traveling wheel top end gap is formed between the traveling wheel and the long strip groove, an inner lifting wheel bottom end gap is formed between the inner lifting wheel and the left and right movable guide rails, and an outer lifting wheel bottom end gap is formed between the outer lifting wheel and the left and right movable guide rails.

[0006] A left movement limit position stopper of the U-shaped walking frame is arranged at the left end of the rectangular base plate, and a right movement limit position stopper of the U-shaped walking frame is arranged at the right end of the rectangular base plate; and extended fixed foot connecting plates of the base plate are arranged at the four corners of the rectangular base plate.

[0007] A lifting method for a compact embedded electric lifting device on a heavy-load conveyor line comprises the following steps: The first step is that when the transferred goods on the heavy-load conveyor line enter the transfer conveying assembly installation frame, the electric cylinder in the driving electric cylinder assembly is started, and the U-shaped walking frame moves from right to left under the drive of the push rod of the electric cylinder. At this time, the walking wheel moves from right to left along the walking wheel walking guide groove, the outer lifting wheel is connected and walks on the outer lifting wheel tread, and the inner lifting wheel is connected and walks on the inner lifting wheel tread. Under the movement and lifting of the outer lifting wheel and the inner lifting wheel, the transfer conveying assembly installation frame realizes the upward lifting of the transfer conveying assembly installation frame through the cooperation of the self-aligning mounting seat and the vertical guide shaft; Step 2: When the installation frame of the transfer conveyor assembly is lifted to the designed position, the electric cylinder push rod is controlled to stop extending; Step 3: The conveyor line mechanism in the front and rear directions conveys the heavy objects to be transferred on the installation frame of the transfer conveyor assembly; The fourth step is to control the push rod of the electric cylinder to retract, and the walking wheel moves from left to right along the walking wheel walking guide groove, the outer lifting wheel is connected and moves right on the outer lifting wheel tread, and the inner lifting wheel is connected and moves right on the inner lifting wheel tread. Under the movement and lifting of the outer and inner lifting wheels, the transfer and conveying assembly installation frame realizes the downward return of the transfer and conveying assembly installation frame through the cooperation of the self-aligning mounting seat and the vertical guide shaft.

[0008] The invention realizes the transfer and lifting of heavy-loaded goods in a narrow space and has a simple and compact structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic structural diagram of a rectangular base plate 1 of the present invention; Figure 3 It is a schematic structural diagram of the left and right movable guide rail 3 of the present invention; Figure 4 It is a structural schematic diagram of the transfer conveying assembly installation frame 9 of the present invention; Figure 5 is a schematic structural diagram of a wedge-shaped guide rail block 11 of the present invention; Figure 6 It is a schematic structural diagram of the U-shaped walking frame 12 of the present invention; Figure 7 It is a schematic structural diagram of the bearing roller assembly 13 of the present invention. DETAILED DESCRIPTION

[0010] The present invention is described in detail below in conjunction with the accompanying drawings: A compact embedded electric lifting device for a heavy-load conveyor line comprises a rectangular base plate 1 and a transfer conveyor assembly mounting frame 9, on which a transfer conveyor line is arranged; vertical guide shafts 2 in the up-and-down directions are fixedly arranged at the four corners of the top surface of the rectangular base plate 1, and the connecting line of the four vertical guide shafts 2 is in a rectangular shape; left and right movable guide rails 3 of a traveling frame are arranged on the top surface of the rectangular base plate 1 inside each vertical guide shaft 2, and the four left and right movable guide rails 3 are arranged in sections and connected to the upper surface of the U-shaped traveling frame 12. Corresponding to the four groups of bearing roller assemblies 13, a driving electric cylinder mounting seat 4 is arranged in the middle of the top surface of the rectangular base plate 1, and a driving electric cylinder assembly 5 is horizontally arranged on the driving electric cylinder mounting seat 4 along the left and right horizontal directions. The output shaft of the electric cylinder in the driving electric cylinder assembly 5 is telescopic along the left and right horizontal directions; a transfer conveying assembly mounting frame 9 is movably arranged directly above the rectangular base plate 1, and self-aligning mounting seats 10 are arranged on the four corners of the bottom surface of the transfer conveying assembly mounting frame 9. The self-aligning mounting seat 10 is used in conjunction with the vertical guide shaft 2. The self-aligning mounting seat 10 It can be lifted and lowered along the vertical guide shaft 2. On the lower bottom surface of the transfer and conveying assembly installation frame 9 inside each self-aligning mounting seat 10, a wedge-shaped guide block 11 is arranged. The wedge-shaped guide block 11 is arranged along the left and right horizontal directions. Each vertical guide shaft 2 is movably arranged in the corresponding self-aligning mounting seat 10, so that the transfer and conveying assembly installation frame 9 can be lifted and lowered along the vertical guide shaft 2. A U-shaped walking frame 12 is movably arranged between the rectangular base plate 1 and the transfer and conveying assembly installation frame 9, and four bearing roller assemblies 13 are arranged on the U-shaped walking frame 12. The bearing roller assembly 13 is the left and right walking support wheel mechanism of the U-shaped walking frame 12. Each bearing roller assembly 13 is arranged between the corresponding left and right movable guide rails 3 and the wedge-shaped guide rail block 11. That is to say, the U-shaped walking frame 12 is movably embedded between the transfer and conveying assembly mounting frame 9 and the rectangular base plate 1, and the bearing roller assembly 13 is embedded between the wedge-shaped guide rail block 11 and the left and right movable guide rails 3; the U-shaped walking frame 12 is connected to the push rod end of the driving electric cylinder assembly 5, so that the driving electric cylinder assembly 5 becomes the power for the U-shaped walking frame 12 to move left and right.

[0011] The bearing roller assembly 13 is composed of a wheel axle 13-4, a running wheel 13-1, an outer lifting wheel 13-2 and an inner lifting wheel 13-3. The running wheel 13-1, the outer lifting wheel 13-2 and the inner lifting wheel 13-3 are arranged in parallel on the wheel axle 13-4, and the running wheel 13-1 is arranged in the center; a running wheel running guide groove 3-1 is arranged in the middle of the left and right movable guide rails 3; an outer lifting wheel tread 11-1 and an inner lifting wheel tread 11-2 are respectively arranged on the inclined lower bottom surface of the wedge-shaped guide rail block 11, and a long strip groove 11-5 is arranged on the inclined lower bottom surface of the wedge-shaped guide rail block 11 between the outer lifting wheel tread 11-1 and the inner lifting wheel tread 11-2; the running wheel 13-1 runs in the running wheel running guide groove 3-1 The outer lifting wheel 13-2 is connected to the outer lifting wheel tread 11-1, and the inner lifting wheel 13-3 is connected to the inner lifting wheel tread 11-2; a top gap 11-3 of the walking wheel is formed between the walking wheel 13-1 and the long strip groove 11-5, an inner lifting wheel bottom gap 3-3 is formed between the inner lifting wheel 13-3 and the left and right movable guide rails 3, and an outer lifting wheel bottom gap 3-2 is formed between the outer lifting wheel 13-2 and the left and right movable guide rails 3; the U-shaped walking frame 12 is supported by four walking wheels 13-1 and walks on the rectangular base plate 1, and the U-shaped walking frame 12 realizes the vertical lifting and lowering operation of the transfer and conveying assembly installation frame 9 through four groups of outer lifting wheels 13-2 and inner lifting wheels 13-3.

[0012] A left movement limit position stopper 7 of the U-shaped walking frame is arranged at the left end of the rectangular base plate 1, and a right movement limit position stopper 6 of the U-shaped walking frame is arranged at the right end of the rectangular base plate 1; an extended fixed foot connecting plate 8 of the base plate is arranged at the four corners of the rectangular base plate 1, and the rectangular base plate 1 is fixed on the conveying line in the left and right directions through the extended fixed foot connecting plate 8.

[0013] A lifting method for a compact embedded electric lifting device on a heavy-load conveyor line comprises the following steps: The first step is that when the transferred goods on the heavy-load conveyor line enter the transfer conveying assembly installation frame 9, the electric cylinder in the driving electric cylinder assembly 5 is started, and the U-shaped walking frame 12 moves from right to left under the drive of the output shaft of the electric cylinder. At this time, the walking wheel 13-1 moves from right to left along the walking wheel walking guide groove 3-1, and the outer lifting wheel 13-2 is connected and walks on the outer lifting wheel tread 11-1, and the inner lifting wheel 13-3 is connected and walks on the inner lifting wheel tread 11-2. Under the walking and lifting of the outer lifting wheel 13-2 and the inner lifting wheel 13-3, the transfer conveying assembly installation frame 9 is lifted upward through the cooperation of the self-aligning mounting seat 10 and the vertical guide shaft 2; Step 2: When the transfer conveying assembly installation frame 9 is lifted to the designed position, the electric cylinder push rod is controlled to stop extending; Step 3: The conveyor line mechanism in the front-to-back direction conveys the heavy objects to be transferred on the transfer conveyor assembly installation frame 9; The fourth step is to control the electric cylinder push rod to retract, and the walking wheel 13-1 moves from left to right along the walking wheel walking guide groove 3-1, and the outer lifting wheel 13-2 is connected to and moves to the right on the outer lifting wheel tread 11-1, and the inner lifting wheel 13-3 is connected to and moves to the right on the inner lifting wheel tread 11-2. Under the movement and lifting of the outer lifting wheel 13-2 and the inner lifting wheel 13-3, the transfer and conveying assembly installation frame 9 is realized by the cooperation of the self-aligning mounting seat 10 and the vertical guide shaft 2, so that the transfer and conveying assembly installation frame 9 is dropped downward.

Claims

1. A compact embedded electric lifting device for a heavy-load conveyor line, comprising a rectangular base plate (1) and a transfer conveyor assembly mounting frame (9); characterized in that: Vertical guide shafts (2) in the up-down direction are fixedly arranged at the four corners of the top surface of the rectangular base plate (1); left-right movable guide rails (3) of the traveling frame are arranged on the top surface of the rectangular base plate (1) inside each vertical guide shaft (2); a driving electric cylinder mounting seat (4) is arranged in the middle of the top surface of the rectangular base plate (1); a driving electric cylinder assembly (5) is arranged horizontally on the driving electric cylinder mounting seat (4) along the left-right horizontal direction; a transfer conveying assembly mounting frame (9) is movably arranged directly above the rectangular base plate (1); self-aligning mounting seats (10) are arranged at the four corners of the bottom surface of the transfer conveying assembly mounting frame (9); and inside each self-aligning mounting seat (10) A wedge-shaped guide rail block (11) is arranged on the lower bottom surface of the transfer conveying assembly installation frame (9); each vertical guide shaft (2) is movably arranged in a corresponding self-aligning mounting seat (10), so that the transfer conveying assembly installation frame (9) can be raised and lowered along the vertical guide shaft (2); a U-shaped walking frame (12) is arranged between the rectangular base plate (1) and the transfer conveying assembly installation frame (9), and four bearing roller assemblies (13) are arranged on the U-shaped walking frame (12), and each bearing roller assembly (13) is arranged between the corresponding left and right movable guide rails (3) and the wedge-shaped guide rail block (11); the U-shaped walking frame (12) is connected to the end of the push rod of the driving electric cylinder assembly (5).

2. The compact embedded electric lifting device for a heavy-load conveyor line according to claim 1 is characterized in that: The bearing roller assembly (13) is composed of a wheel axle (13-4), a running wheel (13-1), an outer lifting wheel (13-2) and an inner lifting wheel (13-3). The running wheel (13-1), the outer lifting wheel (13-2) and the inner lifting wheel (13-3) are arranged in parallel on the wheel axle (13-4), and the running wheel (13-1) is arranged in the middle. A running wheel running guide groove (3-1) is arranged in the middle of the left and right movable guide rails (3). An outer lifting wheel tread (11-1) and an inner lifting wheel tread (11-2) are respectively arranged on the inclined lower bottom surface of the wedge-shaped guide rail block (11). The wedge-shaped guide rail block (11) between the outer lifting wheel tread (11-1) and the inner lifting wheel tread (11-2) is provided with a support. A long strip groove (11-5) is provided on the inclined lower bottom surface of the rail block (11); the running wheel (13-1) runs in the running wheel running guide groove (3-1); the outer lifting wheel (13-2) is connected to the outer lifting wheel tread (11-1); and the inner lifting wheel (13-3) is connected to the inner lifting wheel tread (11-2); a running wheel top gap (11-3) is formed between the running wheel (13-1) and the long strip groove (11-5); an inner lifting wheel bottom gap (3-3) is formed between the inner lifting wheel (13-3) and the left and right movable guide rails (3); and an outer lifting wheel bottom gap (3-2) is formed between the outer lifting wheel (13-2) and the left and right movable guide rails (3).

3. A compact embedded electric lifting device for a heavy-load conveyor line according to claim 1 or 2, characterized in that: A left movement limit position stopper (7) of a U-shaped walking frame is arranged at the left end of the rectangular base plate (1), and a right movement limit position stopper (6) of the U-shaped walking frame is arranged at the right end of the rectangular base plate (1); and extended fixed foot connection plates (8) of the base plate are arranged at the four corners of the rectangular base plate (1).

4. The lifting method of a compact embedded electric lifting device used in a heavy-load conveyor line according to claim 2, characterized by the following steps: The first step is that when the goods to be transferred on the heavy-load conveyor line enter the transfer conveying assembly installation frame (9), the electric cylinder in the driving electric cylinder assembly (5) is started, and the U-shaped walking frame (12) moves from right to left under the drive of the push rod of the electric cylinder. At this time, the walking wheel (13-1) moves from right to left along the walking wheel walking guide groove (3-1), the outer lifting wheel (13-2) is connected to and walks on the outer lifting wheel tread (11-1), and the inner lifting wheel (13-3) is connected to and walks on the inner lifting wheel tread (11-2). Under the movement and lifting of the outer lifting wheel (13-2) and the inner lifting wheel (13-3), the transfer conveying assembly installation frame (9) is lifted upward through the cooperation of the self-aligning mounting seat (10) and the vertical guide shaft (2); Step 2: When the transfer conveyor assembly installation frame (9) is lifted to the designed position, the electric cylinder push rod is controlled to stop extending; Step 3: The conveyor line mechanism in the front-to-back direction conveys the heavy objects to be transferred on the transfer conveyor assembly mounting frame (9); Step 4: Control the electric cylinder push rod to retract, the travel wheel (13-1) travels from left to right along the travel wheel travel guide groove (3-1), the outer lifting wheel (13-2) contacts and travels rightward on the outer lifting wheel tread (11-1), and the inner lifting wheel (13-3) contacts and travels rightward on the inner lifting wheel tread (11-2). Under the movement and lifting of the outer lifting wheel (13-2) and the inner lifting wheel (13-3), the transfer and conveying assembly installation frame (9) cooperates with the self-aligning mounting seat (10) and the vertical guide shaft (2), so that the transfer and conveying assembly installation frame (9) falls back downward.

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