Turnover unit of roller conveyor

Abstract

The utility model discloses a turnover unit of a roller conveyor. The turnover unit solves the problem of how to enable a conveying unit passing through a fireproof isolation door to be turnover. A pair of cantilever plates (11) are fixedly arranged on the front side and the rear side of the left end of a fixed roller horizontal supporting frame body (4), a turnover driving shaft (13) is arranged between a pair of mounted bearings (12), a turnover motor mounting support (23) is arranged on a supporting leg of a second support (2) below the rear end of the turnover driving shaft, a turnover motor (24) is arranged on the turnover motor mounting support (23), and a turnover motor (24) is arranged on the turnover motor mounting support (23). A pair of expansion sleeve lifting lugs (21) are fixedly connected to the overturning driving shaft in a sleeving mode, and the lower ends of the pair of expansion sleeve lifting lugs (21) are connected with an overturning frame (18). A turnover roller horizontal supporting frame body (5) is movably arranged between the first support (1) and the turnover driving shaft, and rollers (7) on the turnover frame body are arranged on the turnover roller horizontal supporting frame body (5) at intervals.

Description

Technical Field

[0001] The invention relates to a roller conveyor, in particular to a reversible roller conveyor. Background Art

[0002] Roller conveyor is a commonly used equipment in intelligent logistics transportation system. The driving motor drives the power roller to rotate through a circular closed chain. Double sprockets are set at both ends of the power roller. Another set of sprockets on the power roller drives the driven roller to rotate through another set of circular closed chains. The synchronous rotation of the rollers on the conveyor frame is realized through such a circular chain. Generally, one driving motor will drive a group of rollers to rotate. The length of this group of rollers on the frame is generally about 6 meters; the objects to be transported on the roller bed are generally placed in a pallet, and the conveyed objects are conveyed by friction; roller conveyor lines are generally long, and many roller conveyor lines must be laid through fire isolation doors. When a fire occurs, the fire safety door needs to respond quickly and fall down to isolate the fire and reduce losses; but traditional roller conveyors do not have a flipping function. How to make the roller conveyor set at the fire isolation door have a flipping function, quickly flip when a fire occurs, and make room for the fire isolation door to fall, and quickly restore the conveying function when the fire alarm is eliminated, has become a problem that needs to be solved at the logistics site. Summary of the invention

[0003] The invention provides a reversible unit of a roller conveyor, which solves the technical problem of how to make the conveying unit passing through a fireproof isolation door reversible.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] A reversible unit of a roller conveyor comprises a second bracket and a third bracket, a fixed roller horizontal supporting frame is arranged between the second bracket and the third bracket, rollers on the fixed frame are arranged at intervals on the fixed roller horizontal supporting frame, a roller driving motor and a driving sprocket are arranged below the fixed roller horizontal supporting frame, the roller driving motor and the driving sprocket are connected with two active rollers on the fixed frame through an active annular closed chain, and two adjacent rollers on the fixed roller horizontal supporting frame are connected through an annular closed driven chain; a pair of cantilever plates are fixedly arranged on the front and rear sides of the left end of the fixed roller horizontal supporting frame, a seat bearing is arranged at the cantilever end of the cantilever plate, a reversing driving shaft is arranged between the pair of seat bearings, a reversing motor mounting bracket is arranged on the support leg of the second bracket below the rear end of the reversing driving shaft, a reversing motor is arranged on the reversing motor mounting bracket, and the output shaft of the reversing motor is connected with the reversing driving shaft; a pair of expansion sleeves are fixedly sleeved on the reversing driving shaft The lifting lugs are connected to a flip frame at the lower ends of a pair of expansion sleeve lifting lugs; a first bracket is arranged on the left side of the second bracket, and a flip roller horizontal support frame is movably arranged between the first bracket and the flip drive shaft, and rollers on the flip frame are arranged at intervals on the flip roller horizontal support frame, and the left part of the flip frame is arranged below the flip roller horizontal support frame; a first right driven roller is arranged at the left end of the fixed roller horizontal support frame on the right side of the flip drive shaft, and a first right driven roller is arranged at the left end of the fixed roller horizontal support frame on the left side of the flip drive shaft. A second left-side driven roller is arranged at the right end of the flipping roller horizontal support frame, a double sprocket is arranged at the end of the flipping drive shaft, a second driven roller end double sprocket is arranged at the end of the second left-side driven roller, a second endless chain is arranged between the second driven roller end double sprocket and the flipping shaft end double sprocket, a first driven roller end double sprocket is arranged at the end of the first right-side driven roller, and a first endless chain is arranged between the first driven roller end double sprocket and the flipping shaft end double sprocket.

[0006] A support for turning is arranged on the right bottom end surface of the turnable roller horizontal support frame.

[0007] A counterweight plate is arranged on the top end surface of the left part of the flippable roller horizontal support frame.

[0008] A pair of L-shaped limiting plates are arranged at the lower part of the legs of the second bracket.

[0009] When the flippable horizontal roller support frame is flipped and vertically arranged, a fire door falling space is formed between the first bracket and the second bracket.

[0010] If the reversible roller horizontal support frame is to be turned upright to make room for the fireproof door to fall for the fireproof isolation door directly above the reversible roller horizontal support frame, the reversing motor is started first, and the output shaft of the reversing motor drives the reversing drive shaft to rotate clockwise, and a pair of expansion sleeve lifting ears fixedly sleeved on the reversing drive shaft also rotate clockwise along with the reversing drive shaft, and the reversing frame connected to the lower ends of the pair of expansion sleeve lifting ears also rotates clockwise around the reversing drive shaft, so that the left end of the reversible roller horizontal support frame is separated from the first bracket; when the reversing frame rotates and swings to a vertical state, a space for the fireproof door to fall is formed between the first bracket and the second bracket;

[0011] If the fire alarm is lifted and the fire door rises and opens again, the flip motor is started, so that the output shaft of the flip motor drives the flip drive shaft to rotate counterclockwise, and the flip drive shaft drives the flip frame to rotate counterclockwise, so that the left part of the flip frame drives the flip roller horizontal support frame to fall back to the first bracket, so that the flip unit of the roller conveyor returns to normal working state.

[0012] The double-row transmission sprocket type roller conveyor line of the present invention can not only ensure the overall transmission and transportation function of the roller bed under normal conditions, but also ensure the free rotation of the flipping conveying parts around the axis during the flipping process. The counterweight plate can use gravity to reduce the motor power and reduce costs. The overall structural design is simple, the operation is stable, and the applicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the present invention;

[0014] Figure 2 It is a schematic diagram of the structure in the main viewing direction when the present invention is working normally;

[0015] Figure 3 It is a schematic structural diagram of the reversible roller horizontal support frame 5 of the present invention during reversal;

[0016] Figure 4 It is a schematic structural diagram of the flippable horizontal roller support frame 5 of the present invention in the rearward direction during flipping;

[0017] Figure 5 It is a schematic diagram of the structure of the reversible horizontal roller support frame 5 of the present invention after being reversed into place;

[0018] Figure 6 It is a diagram showing the matching relationship between the flippable roller horizontal support frame 5 and the flip frame 18 of the present invention. DETAILED DESCRIPTION

[0019] The present invention is described in detail below in conjunction with the accompanying drawings:

[0020] A reversible unit of a roller conveyor comprises a second bracket 2 and a third bracket 3, a fixed roller horizontal support frame 4 is arranged between the second bracket 2 and the third bracket 3, rollers 6 on the fixed frame are arranged at intervals on the fixed roller horizontal support frame 4, a roller drive motor and a drive sprocket 8 are arranged below the fixed roller horizontal support frame 4, the roller drive motor and the drive sprocket 8 are connected to two active rollers on the fixed frame through an active annular closed chain 9, and two adjacent rollers on the fixed roller horizontal support frame 4 are connected through an annular closed driven chain The device of the present invention is a double-row transmission sprocket type roller conveyor line, in which a double-row sprocket is arranged at both ends of each roller, and an annular closed chain is arranged between two adjacent double-row sprockets. Driven by the sprocket on the active transmission roller, these annular closed chains drive all the rollers to rotate synchronously in turn to realize the transmission of goods; a pair of cantilever plates 11 are fixedly arranged on the front and rear sides of the left end of the fixed roller horizontal support frame 4, a seat bearing 12 is arranged at the cantilever end of each cantilever plate 11, and a flap is arranged between the pair of seat bearings 12. The turning drive shaft 13 can rotate in the two seat bearings 12. A turning motor mounting bracket 23 is arranged on the leg of the second bracket 2 below the rear end of the turning drive shaft 13. A turning motor 24 is arranged on the turning motor mounting bracket 23. The output shaft of the turning motor 24 is connected to the turning drive shaft 13. A pair of expansion sleeve lifting ears 21 are fixedly sleeved on the turning drive shaft 13. The pair of expansion sleeve lifting ears 21 can rotate with the turning drive shaft 13. The lower end of the pair of expansion sleeve lifting ears 21 is connected with a turning frame 18, so that the turning motor 24 drives the turning. The frame 18 turns around the two seat bearings 12; the first bracket 1 is arranged on the left side of the second bracket 2, and a flip roller horizontal support frame 5 is movably arranged between the first bracket 1 and the flip drive shaft 13, and rollers 7 on the flip frame are arranged at intervals on the flip roller horizontal support frame 5. The left part of the flip frame 18 is arranged below the flip roller horizontal support frame 5. When the flip frame 18 flips, the left part of the flip frame 18 lifts the flip roller horizontal support frame 5, so that the flip roller horizontal support frame 5 flips together with the flip frame 18;At the left end of the fixed roller horizontal support frame 4 on the right side of the flipping drive shaft 13, a first right side driven roller 16 is arranged, and at the right end of the flippable roller horizontal support frame 5 on the left side of the flipping drive shaft 13, a second left side driven roller 17 is arranged, and at the end of the flipping drive shaft 13, a flipping shaft end double sprocket 22 is arranged, and at the end of the second left side driven roller 17, a second driven roller end double sprocket is arranged, and between the second driven roller end double sprocket and the flipping shaft end double sprocket 22, a second endless chain 15 is arranged, and at the end of the first right side driven roller 16, a first driven roller end double sprocket is arranged, and between the first driven roller end double sprocket and the flipping shaft end double sprocket 22, a first endless chain 14 is arranged; in normal working state, The roller drive motor and the drive sprocket 8 drive the roller 6 on the fixed frame body on the fixed roller horizontal support frame body 4 to rotate, and the first right driven roller 16 is also in a driven rotation state. The first right driven roller 16 drives the double sprocket 22 at the end of the flip shaft to rotate through the first ring chain 14, and the double sprocket 22 at the end of the flip shaft drives the second double sprocket at the end of the second left driven roller 17 through the second ring chain 15 to rotate, thereby transmitting the transmission rotation power to the roller 7 on the flip frame body on the flip roller horizontal support frame body 5; when the flip drive shaft 13 rotates around the two seat bearings 12, the double sprocket 22 at the end of the flip shaft of the flip drive shaft 13 is still in a rotating state, but the rotation speed has changed. ;

[0021] A supported flipping beam 19 is provided on the right bottom end surface of the flippable horizontal roller support frame 5 , and the supported flipping beam 19 serves to connect the flippable horizontal roller support frame 5 and the flipping frame 18 .

[0022] A counterweight plate 20 is arranged on the top surface of the left portion of the flippable roller horizontal support frame 5 . This design can significantly reduce the driving power of the flip motor 24 .

[0023] A pair of L-shaped limit plates 26 are provided at the lower part of the legs of the second bracket 2, so that the flip frame 18 can only flip 90 degrees at most; when the flippable roller horizontal support frame 5 is flipped and set vertically, a fire door falling space 25 is formed between the first bracket 1 and the second bracket 2.

[0024] If the reversible roller horizontal support frame 5 is to be turned upright and a fire door drop space 25 is vacated for the fire isolation door directly above the reversible roller horizontal support frame 5, the reversing motor 24 is first started, and the output shaft of the reversing motor 24 drives the reversing drive shaft 13 to rotate clockwise, and the pair of expansion sleeve lifting ears 21 fixedly sleeved on the reversing drive shaft 13 also rotate clockwise with the reversing drive shaft 13, and the reversing frame 18 connected to the lower ends of the pair of expansion sleeve lifting ears 21 also rotates clockwise around the reversing drive shaft 13, so that the reversible roller horizontal support frame 5 can be turned upright. The left end of the roller horizontal support frame 5 is separated from the first bracket 1; when the flip frame 18 rotates and swings to a vertical state, the flip motor 24 stops rotating, and a fire door drop space 25 is formed between the first bracket 1 and the second bracket 2. After the flip frame 18 is set vertically, the proximity switch installed in front of the L-shaped limit plate 26 will work first, and it will automatically stop the flipping action when it is judged that the flip frame 18 is flipped. The L-shaped limit plate 26 is used to prevent the flip frame 18 from over-flipping and causing damage to the equipment after the proximity switch fails;

[0025] If the fire alarm is lifted and the fire door rises and opens again, the flip motor 24 is started, so that the output shaft of the flip motor 24 drives the flip drive shaft 13 to rotate counterclockwise, and the flip drive shaft 13 drives the flip frame 18 to rotate counterclockwise, so that the left part of the flip frame 18 drives the flippable roller horizontal support frame 5 to fall back onto the first bracket 1, so that the flip unit of the roller conveyor returns to normal working state.

Claims

1. A reversible unit of a roller conveyor, comprising a second bracket (2) and a third bracket (3), a fixed roller horizontal support frame (4) being arranged between the second bracket (2) and the third bracket (3), rollers (6) on the fixed frame being arranged at intervals on the fixed roller horizontal support frame (4), a roller drive motor and a drive sprocket (8) being arranged below the fixed roller horizontal support frame (4), the roller drive motor and the drive sprocket (8) being connected to two active rollers on the fixed frame through an active annular closed chain (9), and two adjacent rollers on the fixed roller horizontal support frame (4) being connected through an annular closed driven chain (10); characterized in that: A pair of cantilever plates (11) are fixedly arranged at the front and rear sides of the left end of the fixed horizontal roller support frame (4); a seat bearing (12) is arranged at the cantilever end of the cantilever plate (11); a flip drive shaft (13) is arranged between the pair of seat bearings (12); a flip motor mounting bracket (23) is arranged on the support leg of the second bracket (2) below the rear end of the flip drive shaft (13); a flip motor (24) is arranged on the flip motor mounting bracket (23); an output shaft of the flip motor (24) is connected to the flip drive shaft (13); a pair of expansion sleeve lifting ears (21) are fixedly sleeved on the flip drive shaft (13); a flip frame (18) is connected to the lower ends of the pair of expansion sleeve lifting ears (21); a first bracket (1) is arranged on the left side of the second bracket (2); a flip roller horizontal support frame (5) is movably arranged between the first bracket (1) and the flip drive shaft (13); a flip motor (24) is arranged on the flip motor mounting bracket (23); and a flip motor (24) is arranged on the output shaft of the flip motor (24) and the flip drive shaft (13). A roller (7) on a reversible frame is arranged at a distance from the ground, and the left part of the reversible frame (18) is arranged below the reversible roller horizontal support frame (5); a first right side driven roller (16) is arranged at the left end of the fixed roller horizontal support frame (4) on the right side of the reversing drive shaft (13); a second left side driven roller (17) is arranged at the right end of the reversible roller horizontal support frame (5) on the left side of the reversing drive shaft (13); and at the end of the reversing drive shaft (13), A double sprocket (22) is provided at the end of the flip shaft, a second double sprocket is provided at the end of the second left driven roller (17), a second endless chain (15) is provided between the second double sprocket and the flip shaft end double sprocket (22), a first double sprocket is provided at the end of the first right driven roller (16), and a first endless chain (14) is provided between the first double sprocket and the flip shaft end double sprocket (22).

2. A reversible unit of a roller conveyor according to claim 1, characterized in that: A supported flipping beam (19) is arranged on the right bottom end surface of the flippable roller horizontal support frame (5).

3. A reversible unit of a roller conveyor according to claim 1 or 2, characterized in that: A counterweight plate (20) is arranged on the top end surface of the left portion of the reversible roller horizontal support frame (5).

4. A reversible unit of a roller conveyor according to claim 3, characterized in that: A pair of L-shaped limiting plates (26) are arranged at the lower part of the legs of the second bracket (2); when the flippable roller horizontal support frame (5) is flipped and arranged vertically, a fire door falling space (25) is formed between the first bracket (1) and the second bracket (2).

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