Reciprocating elevator

Abstract

The invention relates to the technical field of elevators, in particular to a reciprocating elevator which comprises a frame body, a compensation mechanism and a replacement mechanism. The compensation mechanism comprises a plate a, a detection part, a sliding rail b, a dragging plate, a telescopic component a, a clamping block a, a telescopic component b and a jacking arm; the plate a is arranged on the frame body, and the detection part is arranged on the plate a; the carriage is connected with the frame body; the slide rail b is connected with the carriage; the telescopic part a is in sliding connection with the sliding rail b and is connected with the jacking arm; the jacking arm is connected with the clamping block a; the telescopic component b is arranged on the carriage and is connected with a lifting block; the replacing mechanism comprises a telescopic component c, a connecting arm a, a mounting block, a hoop block a and a hoop block b; the telescopic component c is connected with the connecting arm a; the connecting arm a is connected with the mounting block; the hoop block a and the hoop block b are connected with the mounting block; steel wire ropes b are connected between the two groups of hoop blocks a and the two groups of hoop blocks b; the extension part of the steel wire rope a is temporarily replaced by the steel wire rope b, and the material conveying progress is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of hoisting technology, and specifically to a reciprocating hoist. Background Technology

[0002] Reciprocating elevators are a common type of logistics automation equipment, mainly used for the efficient and automatic vertical transport of goods (such as pallets, cartons, etc.) between floors. Its core working principle is similar to an intelligent "freight elevator", which achieves transport by the up-and-down reciprocating motion of a "basket" or "car" that carries the goods.

[0003] Chinese Patent Publication No. CN117623165A discloses a reciprocating hoist, which includes a frame, a drive mechanism, a loading and unloading conveyor mechanism, and a car. It can realize the lifting and lowering of materials, with the two actions being opposite. Taking material lifting as an example: after the material is placed on the low-level loading and unloading conveyor mechanism, the material can be transported to the intermediate conveyor mechanism by driving the low-level loading and unloading conveyor mechanism. Then, the drive mechanism is driven to raise the car, and then the intermediate conveyor mechanism is driven to transport the material to the high-level loading and unloading conveyor mechanism, thus completing the material lifting. This application can automatically realize the loading and unloading of the car, reducing manual intervention.

[0004] However, the existing technology has the following drawbacks: it mainly uses a geared motor to drive the sprocket to rotate and drive the chain to move, thereby realizing the lifting and lowering of the car and the conveying of materials. However, when the chain is subjected to tensile loads for a long time, wear will occur between the pin and the sleeve, resulting in the loss of metal material, increased gaps, and an increase in the total length of the chain. This will lead to a height difference (step) or excessive horizontal gap between the car and the fixed conveyor on the outside when the car stops at the floor, causing violent impacts or even jamming when goods enter or exit. Therefore, the chain needs to be tightened in order to continue the conveying operation, which seriously affects the material conveying progress. Summary of the Invention

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a reciprocating hoist.

[0006] The technical solution of the present invention: a reciprocating hoist, comprising a frame, and further comprising: The lifting mechanism includes a drive unit, a wire rope a, a suspended platform, and a conveying unit a; the drive unit has two sets and is located at the top of the frame; the inner wall of the frame is provided with a slide rail a; the suspended platform is slidably connected to the slide rail a; one end of the wire rope a is connected to the drive unit; the other end of the wire rope a is connected to the top of the suspended platform; multiple marking blocks are evenly distributed on the wire rope a; the conveying unit a is located inside the suspended platform. The compensation mechanism includes a plate a, a detection unit, a slide rail b, a sliding plate, a telescopic component a, a locking block a, a telescopic component b, and a lifting arm; plate a is mounted on the frame and has an opening; the detection unit is located inside the opening and directly opposite the wire rope a; the sliding plate is connected to the frame; two sets of slide rails b are provided and connected to the sliding plate; the telescopic component a is slidably connected to the two sets of slide rails b, and one end of the telescopic component a is connected to the lifting arm; one end of the lifting arm is connected to the locking block a; the telescopic component b is mounted on the sliding plate and one end of it is connected to a lifting block. The replacement mechanism includes a telescopic component c, a connecting arm a, a mounting block, a clamping block a, and a clamping block b; the telescopic component c has two sets connected by the connecting arm b; the telescopic component c is connected to the slide rail b via the connecting arm c; the output ends at both ends of the telescopic component c are connected to the connecting arm a; the connecting arm a is connected to the mounting block; the clamping block a is detachably connected to one of the mounting blocks; the clamping block b is detachably connected to the other mounting block; steel wire rope b is connected between the two sets of clamping blocks a and the two sets of clamping blocks b.

[0007] Preferably, a conveying section b is provided on one side of the frame, directly opposite the conveying section a; and a conveying section c is provided at one end of the conveying section b.

[0008] Preferably, telescopic components d are connected to the slide rails a on both sides by pads; one end of the telescopic component d is connected to a locking block b; the two sets of locking blocks b are engaged with each other and locked onto the wire rope a.

[0009] Preferably, the clamping block a has a cavity inside, and the end face of the clamping block a has a circular opening; a motor a is installed inside the cavity; the output end of the motor a is connected to a threaded shaft.

[0010] Preferably, the end face of the clamping block b is provided with a threaded groove that is compatible with the threaded shaft.

[0011] Preferably, the drive unit includes a motor b, a shaft a, a bevel gear a, a bevel gear b, and a take-up roller; the shaft a is rotatably connected to the top of the frame; the take-up roller has two sets and is connected to the shaft a; the bevel gear a is connected to the shaft a; the motor b is located at the top of the frame and its output end is connected to the bevel gear b; the bevel gear b meshes with the bevel gear a; the take-up roller is connected to one end of the wire rope a.

[0012] Preferably, the detection unit includes a laser rangefinder and an tilt sensor; used to measure the distance between adjacent marker blocks.

[0013] Preferably, the inner side of the mounting block is provided with a slot; the outer peripheral surfaces of clamp block a and clamp block b are connected with insert blocks; the insert blocks are inserted into the slots and magnetically attracted to each other.

[0014] Compared with the prior art, the above-mentioned technical solution of the present invention has the following beneficial technical effects: By incorporating a compensation mechanism, the detection unit within the compensation mechanism can monitor the wire rope a in real time. When plastic elongation occurs, the machine can be stopped promptly, and the elongated portion of the wire rope a can be compensated using the telescopic component b in conjunction with the lifting arm and the locking block a. This ensures that when the suspended basket is stopped, the internal conveying section a and conveying section b remain flush, preventing jamming when goods enter or exit the suspended basket. By incorporating a replacement mechanism, after the length compensation of wire rope a is completed, the telescopic component c drives clamping blocks a and b to move towards each other and clamp onto wire rope a. This allows wire rope b to temporarily replace the elongated part of wire rope a, enabling wire rope a to continue to be used for a short period after plastic elongation occurs, ensuring the material conveying progress. After the material conveying is completed, maintenance personnel can then inspect or replace wire rope a. Attached Figure Description

[0015] Figure 1 This is an external perspective view of one embodiment of the present invention; Figure 2 This is a perspective view of the internal structure in one embodiment of the present invention; Figure 3 This is a schematic diagram of the compensation mechanism and the replacement mechanism in one embodiment of the present invention; Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the structure when the mounting block and the clamping block a are separated in one embodiment of the present invention; Figure 6 This is a schematic diagram of the frame and lifting mechanism in one embodiment of the present invention.

[0016] Reference numerals: 1. Suspended basket; 2. Conveying section a; 3. Conveying section b; 4. Conveying section c; 5. Frame; 6. Wire rope a; 7. Motor b; 8. Rewinding roller; 9. Plate a; 10. Detection section; 11. Marking block; 12. Telescopic component c; 13. Connecting arm a; 14. Mounting block; 1401. Slot; 15. Wire rope b; 16. Telescopic component d; 17. Slide rail a; 18. Telescopic component a; 19. Connecting arm b; 20. Clamping block a; 21. Connecting arm c; 22. Slide plate; 23. Insert block; 24. Motor a; 25. Threaded shaft; 26. Locking block b; 27. Locking block a; 28. Lifting arm; 29. ​​Telescopic component b; 30. Lifting block; 31. Clamping block b; 3101. Threaded groove. Detailed Implementation

[0017] Example 1, as Figures 1-6As shown, the present invention proposes a reciprocating elevator, including a frame 5, with a conveying section b3 located on one side of the frame 5 opposite to the conveying section a2; a conveying section c4 is located at one end of the conveying section b3; the conveying sections a2 and b3 are roller conveyors, and the conveying section c4 is a belt conveyor, which is prior art, and its specific structure and working principle will not be described in detail here; the conveying section c4 is used to convey materials onto the conveying section b3; the conveying section b3 cooperates with the conveying section a2 to convey materials into the basket 1; it also includes a lifting mechanism, a compensation mechanism, and a replacement mechanism; The lifting mechanism includes a drive unit, a wire rope a6, a suspended platform 1, and a conveying unit a2; the drive unit has two sets and is located at the top of the frame 5; the inner wall of the frame 5 is provided with a slide rail a17 (the slide rail a17 guides and limits the lifting and lowering of the suspended platform 1); the suspended platform 1 is slidably connected to the slide rail a17; one end of the wire rope a6 is connected to the drive unit; the other end of the wire rope a6 is connected to the top of the suspended platform 1; multiple marking blocks 11 are evenly provided on the wire rope a6 (the multiple marking blocks 11 divide the wire rope a6 into multiple sections); the conveying unit a2 is located inside the suspended platform 1; The compensation mechanism includes plate a9, detection unit 10, slide rail b, sliding plate 22, telescopic component a18, locking block a27, telescopic component b29, and lifting arm 28; plate a9 is mounted on frame 5, and an opening is provided on plate a9; detection unit 10 is located inside the opening and directly opposite wire rope a6; detection unit 10 includes a laser rangefinder and tilt sensor (also includes a built-in chip for calculating spacing values); it is used to measure the distance between adjacent marker blocks 11 (the laser rangefinder emits a laser beam to measure the straight-line distance (slope distance) to the marker block 11, while the built-in tilt sensor measures the angle between the laser beam and the horizontal plane, and then the chip inside detection unit 10 automatically calculates the vertical height); sliding plate 22 and frame 5 5. Connection; two sets of slide rails b are provided and connected to the slide plate 22; telescopic component a18 is slidably connected to the two sets of slide rails b, one end of telescopic component a18 is connected to the lifting arm 28; one end of the lifting arm 28 is connected to the locking block a27; telescopic component b29 is provided on the slide plate 22 and one end of it is connected to the lifting block 30; telescopic component d16 is connected to the slide rails a17 on both sides through pads; one end of telescopic component d16 is connected to the locking block b26; the two sets of locking blocks b26 are engaged with each other and locked on the wire rope a6 (the locking block b26 is locked at the upper end of the extended part of the wire rope a6 to avoid the bending of the upper end of the extended part of the wire rope a6 during the compensation process, which affects the locking of the clamp block a20 and the clamp block b31 on the wire rope a6); The replacement mechanism includes a telescopic component c12, a connecting arm a13, a mounting block 14, a clamping block a20, and a clamping block b31; the telescopic component c12 has two sets connected by the connecting arm b19; the telescopic component c12 is connected to the slide rail b via the connecting arm c21; the output ends of both ends of the telescopic component c12 are connected to the connecting arm a13; the connecting arm a13 is connected to the mounting block 14; the clamping block a20 is detachably connected to one of the mounting blocks 14, and the inner side of the mounting block 14 has a slot 1401; the outer peripheral surfaces of the clamping blocks a20 and b31 are connected to the inserts 23; the inserts 23 are connected to the slots 1401 are plugged in and magnetically attracted to each other (ensuring that after clamp blocks a20 and b31 are engaged, mounting block 14 can be separated from clamp blocks a20 and b31); clamp block b31 is detachably connected to another mounting block 14; steel wire ropes b15 are connected between the two sets of clamp blocks a20 and the two sets of clamp blocks b31; a cavity is opened inside clamp block a20, and a circular opening is opened on the end face of clamp block a20; a motor a24 is installed in the cavity; a threaded shaft 25 is connected to the output end of motor a24; a threaded groove 3101 that is adapted to the threaded shaft 25 is opened on the end face of clamp block b31.

[0018] In this invention, when the wire rope a6 passes through the detection unit 10, the detection unit 10 measures the distance between adjacent marker blocks 11. When the wire rope a6 undergoes local plastic elongation, the detection unit 10 detects a significant increase in the distance between the marker blocks 11 at both ends of the elongated portion and calculates a compensation value (i.e., the difference between the distance between the marker blocks 11 after the wire rope a6 elongates and the distance before elongation). At this time, the laser rangefinder feeds back to the hoist's central control unit, which then controls the drive unit to elongate the wire rope a6. The hoist's main control unit first controls the telescopic components d16 and a18 to operate, causing the locking block b26 to clamp the upper segment of the extended section of the wire rope a6, and the locking block a27 to clamp the lower segment of the extended section. Then, the telescopic component b29 drives the lifting block 30 to move upward, and the lifting block 30 pushes the lifting arm 28 upward, so that the lifting arm 28, together with the locking block a27 and the marking block 11 on the wire rope a6, pulls the lower end of the extended section of the wire rope a6 upward (at this time, the extension...). (The longer section will bend), which in turn causes the suspended basket 1 to move upward by a compensation distance, ensuring that when the suspended basket 1 stops, its internal conveying section a2 and conveying section b3 remain flush, preventing jamming when goods enter or exit the suspended basket 1; subsequently, the hoist's main control unit controls the telescopic component c12 to work, the telescopic component c12 drives the connecting arm a13 to move, the connecting arm a13 drives the mounting block 14 to move, and the mounting blocks 14 on both sides respectively drive the clamping block a20 and clamping block b31 to move towards each other and clamp onto the corresponding segments of the wire rope a6. Simultaneously, motor a24 is turned on, which drives the threaded shaft 25 to rotate, so that its thread is connected inside the threaded groove 3101, realizing the tight connection function of clamping block a20 and clamping block b31, ensuring its tight clamping function for wire rope a6, and realizing the temporary replacement of the elongated part of wire rope a6 by using wire rope b15, so that wire rope a6 can continue to be used for a short time after plastic elongation occurs, ensuring the progress of material conveying. After the material conveying is completed, maintenance personnel will then inspect or replace wire rope a6.

[0019] It is worth noting that when the clamping blocks a27, b26, a20, and b31 are clamped on the wire rope a6, both their upper and lower ends can contact the marking block 11, ensuring stability on the wire rope a6.

[0020] When the wire rope a6 is in normal use, the segments of the wire rope a6 that are aligned with the detection point of the detection unit 10 are aligned with the upper and lower segments of the clamping block a27 and clamping block b26, respectively; at the same time, the clamping blocks a20 and b31 are also aligned with the corresponding segments. When the wire rope a6 experiences local elongation, the segments that were originally aligned with the clamping blocks a27 and b31 are no longer aligned. The position of the clamping block a27 can be finely adjusted by raising and lowering the telescopic component b29 to align the clamping block a27 with the clamping block a26, ensuring that the clamping block a27 can be clamped on the wire rope a6. After length compensation, the segments that were originally aligned with the clamping block a20 are aligned again.

[0021] It should be noted that telescopic components a18, b29, c12, and d16 are all composed of a housing and a cylinder, with the cylinder located inside the housing; the cylinder in telescopic component c12 is a dual-axis cylinder.

[0022] It is worth noting that when the clamping blocks a27, b26, a20, and b31 are clamped on the wire rope a6, the marking block 11 on the wire rope a6 can limit their movement and ensure their stability on the wire rope a6.

[0023] Example 2, as Figure 1 As shown, the reciprocating hoist proposed in this invention, compared with Embodiment 1, further includes a drive unit, which includes a motor b7, a shaft a, a bevel gear a, a bevel gear b, and a winding roller 8; the shaft a is rotatably connected to the top of the frame 5; the winding roller 8 is provided in two sets and connected to the shaft a; the bevel gear a is connected to the shaft a; the motor b7 is located at the top of the frame 5 and its output end is connected to the bevel gear b; the bevel gear b meshes with the bevel gear a; the winding roller 8 is connected to one end of the wire rope a6.

[0024] In this embodiment, motor b7 drives bevel gear a to rotate, bevel gear a drives bevel gear b to rotate, bevel gear b drives shaft a to rotate, and shaft a drives the winding rollers 8 at both ends to rotate, starting to wind or release the wire rope a6, thereby realizing the lifting function of the basket 1 and thus realizing the vertical conveying function of materials.

[0025] In summary, the material to be conveyed is placed on the conveying section c4, then conveyed by the conveying section c4 to the conveying section b3, and finally the conveying section b3, in conjunction with the conveying section a2, conveys the material into the basket 1. Afterwards, the hoist's main control unit controls the motor b7 to work, the motor b7 drives the bevel gear a to rotate, the bevel gear a drives the bevel gear b to rotate, the bevel gear b drives the shaft a to rotate, and the shaft a drives the winding rollers 8 at both ends to rotate, starting to wind up the wire rope a6, thereby realizing the lifting function of the basket 1 and thus realizing the vertical conveying function of the material.

[0026] When the wire rope a6 passes through the detection unit 10, the detection unit 10 measures the distance between adjacent marker blocks 11. When the wire rope a6 undergoes local plastic elongation, the detection unit 10 detects a significant increase in the distance between the marker blocks 11 at both ends of the elongated portion and calculates a compensation value (i.e., the difference between the distance between the marker blocks 11 after the wire rope a6 elongates and the distance before elongation; the calculation method is as follows: a laser rangefinder emits a laser beam and measures the straight-line distance (slope distance) to the marker block 11. At the same time, the built-in tilt sensor measures the angle between the laser beam and the horizontal plane. Then, the chip inside the detection unit 10 automatically calculates the vertical direction. At this point, the laser rangefinder will send feedback to the hoist's main control unit. The hoist's main control unit will control the drive unit to ensure that the extended part of the wire rope a6 is aligned with the detection point of the detection unit 10. The hoist's main control unit will first control the telescopic components d16 and a18 to work, so that the clamping block b26 is clamped at the upper segment of the extended part of the wire rope a6, and the clamping block a27 is clamped at the lower segment of the extended part (before this, the telescopic component b29 will finely adjust the position of the clamping block a27 to align it with the misaligned segment); then the telescopic component b29 will drive the lifting block 30 to move upward, and the lifting block 3... Pushing the lifting arm 28 upwards causes the lifting arm 28, in conjunction with the locking block a27 and the marking block 11 on the wire rope a6, to pull the lower end of the wire rope a6 of the extended part upwards (at this time, the extended part will bend), thereby causing the suspended basket 1 to move upwards by the compensation distance, ensuring that when the suspended basket 1 stops, its internal conveying section a2 and conveying section b3 remain flush, preventing jamming when goods enter or leave the suspended basket 1; subsequently, the hoist's main control unit controls the telescopic component c12 to work, the telescopic component c12 drives the connecting arm a13 to move, the connecting arm a13 drives the mounting block 14 to move, and the mounting blocks 14 on both sides respectively drive the clamping blocks a 20 and clamping block b31 move towards each other and clamp the corresponding segment of wire rope a6. At the same time, motor a24 is turned on, and motor a24 drives threaded shaft 25 to rotate, so that its thread is connected inside threaded groove 3101, realizing the tight connection function of clamping block a20 and clamping block b31, ensuring its tight clamping function of wire rope a6. It also allows wire rope b15 to temporarily replace the elongated part of wire rope a6, so that wire rope a6 can continue to be used for a short time after plastic elongation, ensuring the progress of material conveying. After the material conveying is completed, maintenance personnel can then inspect or replace wire rope a6.

[0027] Finally, telescopic component c12 moves mounting block 14, separating it from clamp block a20 and clamp block b31 (insertion block 23 can be directly pulled out from slot 1401). At the same time, telescopic component d16 moves locking block b26, separating locking block b26 from wire rope a6. Simultaneously, telescopic component a18 moves lifting arm 28, which in turn moves locking block a27, separating locking block a27 from wire rope a6. Telescopic component d16 moves locking block b26, separating locking block b26 from wire rope a6.

[0028] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, 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 elevator, characterized in that, Including the frame (5), it also includes: The lifting mechanism includes a drive unit, a wire rope a (6), a suspended basket (1), and a conveying unit a (2); the drive unit is provided in two sets and is located at the top of the frame (5); the inner wall of the frame (5) is provided with a slide rail a (17); the suspended basket (1) is slidably connected to the slide rail a (17); one end of the wire rope a (6) is connected to the drive unit; the other end of the wire rope a (6) is connected to the top of the suspended basket (1); multiple marking blocks (11) are evenly provided on the wire rope a (6); the conveying unit a (2) is located inside the suspended basket (1); The compensation mechanism includes a plate a (9), a detection unit (10), a slide rail b, a slide plate (22), a telescopic component a (18), a locking block a (27), a telescopic component b (29), and a lifting arm (28); the plate a (9) is mounted on the frame (5), and an opening is provided on the plate a (9); the detection unit (10) is located inside the opening and faces the wire rope a (6); the slide plate (22) is connected to the frame (5); the slide rail b has two sets and is connected to the slide plate (22); the telescopic component a (18) is slidably connected to the two sets of slide rails b, and one end of the telescopic component a (18) is connected to the lifting arm (28); one end of the lifting arm (28) is connected to the locking block a (27); the telescopic component b (29) is mounted on the slide plate (22) and one end of it is connected to a lifting block (30); The replacement mechanism includes a telescopic component c (12), a connecting arm a (13), a mounting block (14), a clamp block a (20), and a clamp block b (31); the telescopic component c (12) is provided in two sets and connected by the connecting arm b (19); the telescopic component c (12) is connected to the slide rail b by the connecting arm c (21); the output ends of both ends of the telescopic component c (12) are connected to the connecting arm a (13); the connecting arm a (13) is connected to the mounting block (14); the clamp block a (20) is detachably connected to one of the mounting blocks (14); the clamp block b (31) is detachably connected to the other mounting block (14); and a steel wire rope b (15) is connected between the two sets of clamp blocks a (20) and the two sets of clamp blocks b (31).

2. The reciprocating elevator according to claim 1, characterized in that, A conveying section b (3) is provided on one side of the frame (5) directly opposite the conveying section a (2); a conveying section c (4) is provided at one end of the conveying section b (3).

3. A reciprocating elevator according to claim 1, characterized in that, Telescopic components d (16) are connected to the slide rails a (17) on both sides by pads; one end of the telescopic component d (16) is connected to a locking block b (26); the two sets of locking blocks b (26) are locked together on the wire rope a (6).

4. A reciprocating elevator according to claim 1, characterized in that, The clamping block a (20) has a cavity inside, and a circular opening is provided on the end face of the clamping block a (20); a motor a (24) is provided inside the cavity; the output end of the motor a (24) is connected to a threaded shaft (25).

5. A reciprocating elevator according to claim 4, characterized in that, The end face of the clamping block b (31) is provided with a threaded groove (3101) that is compatible with the threaded shaft (25).

6. A reciprocating elevator according to claim 1, characterized in that, The drive unit includes a motor b (7), a shaft a, a bevel gear a, a bevel gear b, and a take-up roller (8); the shaft a is rotatably connected to the top of the frame (5); the take-up roller (8) has two sets and is connected to the shaft a; the bevel gear a is connected to the shaft a; the motor b (7) is located at the top of the frame (5) and its output end is connected to the bevel gear b; the bevel gear b meshes with the bevel gear a; the take-up roller (8) is connected to one end of the wire rope a (6).

7. A reciprocating elevator according to claim 1, characterized in that, The detection unit (10) includes a laser rangefinder and an inclination sensor; used to measure the distance between adjacent marker blocks (11).

8. A reciprocating elevator according to claim 1, characterized in that, The inner side of the mounting block (14) is provided with a slot (1401); the outer circumferential surfaces of the clamp block a (20) and clamp block b (31) are connected with insert blocks (23); the insert blocks (23) are inserted into the slot (1401) and magnetically attracted to each other.

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