Lifting mechanism capable of quickly and accurately adjusting height of conveying equipment

Abstract

The utility model provides a lifting mechanism capable of quickly and accurately adjusting the height of conveying equipment, which relates to the technical field of lifting mechanisms and comprises a lifting support, a gear motor is mounted at the top of the lifting support, and lead screw lifters are symmetrically mounted on two sides of the lifting support through lifter cushion blocks. A conveyor supporting base is fixedly installed at the top end of the lead screw lifting machine, and a linkage mechanism is arranged between the output end of the gear motor and the lead screw lifting machine. During operation, the turbine worm gear motor drives the commutator to rotate through the coupling; when the conveying equipment needs to ascend, the reverser drives a lead screw in the lead screw lifting machine to move upwards through the transmission shaft, the lead screw lifting machine connecting piece-is connected with the lead screw lifting machine, the lead screw in the lead screw lifting machine moves upwards to drive the conveyor supporting seat to move upwards, and the conveyor connecting piece-is connected with the conveying equipment. And the conveyor supporting seat moves upwards to drive the conveying equipment to move up and down, so that the height of the conveying equipment is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting mechanisms, in particular to a lifting mechanism capable of quickly and accurately adjusting the height of a conveying device. Background Art

[0002] The working principle of a lifting mechanism mainly depends on its internal mechanical structure and power system. Generally speaking, a lifting mechanism consists of a traveling mechanism, a hydraulic mechanism, an electric control mechanism, a support mechanism, etc. By controlling the movement of actuators such as hydraulic cylinders or motors, the rise and fall of the lifting platform are realized. In a hydraulically driven lifting mechanism, hydraulic oil forms a certain pressure by a vane pump, and after passing through a series of control valve components, it enters the lower end or upper end of the hydraulic cylinder, thereby driving the up and down movement of the piston to realize the lifting of heavy objects. The electrical control system controls the rotation of the motor and the commutation of the hydraulic valve through control components such as buttons or PLCs to achieve precise control of the lifting process.

[0003] In the existing conveying devices, since the height is fixed, the distance between the conveying device and the discharge port of the packaging machine can only be suitable for one specification of packaging bags. Since manufacturers have different specifications and sizes of packaging bags, when the manufacturer uses other specifications and sizes of packaging bags, the height of the conveying device cannot meet the requirements of the transportation height. During the transportation of the packaging bags filled with materials, the height of the conveying device is too high or too low, resulting in instability during the transportation of the packaging bags filled with materials, and even tipping over, affecting production. Therefore, the utility model proposes a lifting mechanism capable of quickly and accurately adjusting the height of a conveying device to solve the above problems. Summary of the Utility Model

[0004] In view of the above problems, the utility model proposes a lifting mechanism capable of quickly and accurately adjusting the height of a conveying device to solve the problem in the prior art that when the packaging bag is located at the discharge port of the packaging machine, due to the fixed height of the conveying device, it is only suitable for one specification of packaging bag, and for other specifications of packaging bags, the packaging bags filled with materials cannot be stably located on the conveying device.

[0005] To achieve the purpose of the utility model, the utility model is realized through the following technical solutions: A lifting mechanism capable of quickly and accurately adjusting the height of a conveying device, including a lifting bracket, a reduction motor is installed at the top of the lifting bracket, screw jacks are symmetrically installed on both sides of the lifting bracket through lifting machine pads, a conveyor support seat is fixedly installed at the top end of the screw jack, and a linkage mechanism is arranged between the output end of the reduction motor and the screw jack.

[0006] A further improvement lies in that: the screw jack includes a housing, a turbine, a threaded sleeve and a screw rod. The turbine is rotatably installed inside the housing. A threaded sleeve is fixedly connected to the top of the turbine. The screw rod is threadedly connected inside the threaded sleeve. The outer wall of the screw rod is slidably connected to the top end of the housing. The top end of the screw rod is fixedly connected to the bottom of the conveyor support seat.

[0007] A further improvement lies in that: lift connectors are symmetrically arranged on both sides of the conveyor support seat. A conveyor connector is arranged on one side of the lift connector. Fixing holes are provided on both the lift connector and the conveyor connector. Bolts are provided inside the fixing holes. The lift connector is detachably connected to the top end of the screw rod through the bolt. The conveyor connector is detachably connected to the conveying equipment through the bolt.

[0008] A further improvement lies in that: the linkage mechanism includes a coupling, a steering gear, a transmission shaft and a worm. The output end of the reduction motor is fixedly connected to the coupling. Steering gears are symmetrically and fixedly installed at both ends of the coupling. Transmission shafts are symmetrically and fixedly connected to both ends of the steering gear. A worm is fixedly connected to one end of the transmission shaft. The worm meshes with the outer wall of the turbine.

[0009] A further improvement lies in that: the steering gear includes a connecting shaft, bevel gears and a box body. Two bevel gears are rotatably connected inside the box body. The positions of the two bevel gears are perpendicular to each other and their outer walls mesh with each other. Connecting shafts are fixedly connected inside the two bevel gears. One end of one connecting shaft is fixedly connected to one end of the coupling. Both ends of the other connecting shaft are respectively fixedly connected to one end of the two transmission shafts.

[0010] A further improvement lies in that: a limit switch mounting seat is fixedly connected to one side of the lifting bracket. A limit switch is fixedly connected to the top end of the limit switch mounting seat. A controller is arranged outside the reduction motor. The limit switch is electrically connected to the controller through a wire.

[0011] A further improvement lies in that: cross beams are symmetrically and fixedly connected to both sides of the lifting bracket. Feet are symmetrically and rotatably connected to both sides of the bottom of the cross beam. A connecting hole is provided at one end of the foot.

[0012] The beneficial effects of the present utility model are as follows: during operation, the turbine worm reduction motor drives the commutator to rotate through the coupling; when the conveying equipment needs to rise, the commutator drives the screw rod in the screw jack to move upward through the transmission shaft. The screw jack connector is connected to the screw jack. The upward movement of the screw rod in the screw jack drives the conveyor support seat to move upward. The conveyor connector is connected to the conveying equipment. The upward movement of the conveyor support seat drives the conveying equipment to move up and down, thereby realizing the height rise of the conveying equipment. Description of the Drawings

[0013] Figure 1 This is the front view of the present utility model;

[0014] Figure 2 This is the schematic structural view of the support base of the present utility model;

[0015] Figure 3 This is the schematic structural view of the screw jack of the present utility model;

[0016] Figure 4 This is the schematic structural view of the commutator of the present utility model.

[0017] In the figure: 1, reduction motor; 2, coupling; 3, steering gear; 4, transmission shaft; 5, screw jack; 6, conveyor support base; 7, lifting bracket; 8, jacking block; 9, limit switch mounting base; 10, limit switch; 11, cross beam; 12, support rod; 13, anchor; 14, jack connecting piece; 15, conveyor connecting piece; 16, worm; 17, housing; 18, turbine; 19, threaded sleeve; 20, lead screw; 21, connecting shaft; 22, bevel gear; 23, box body. Specific embodiments

[0018] To deepen the understanding of the present utility model, the following will further elaborate on the present utility model in combination with embodiments. These embodiments are only used to explain the present utility model and do not constitute a limitation to the protection scope of the present utility model.

[0019] According to Figure 1 , 2 , as shown in Figures 3 and 4, this embodiment proposes a lifting mechanism that can quickly and accurately adjust the height of a conveying device, including a lifting bracket 7. A reduction motor 1 is installed at the top of the lifting bracket 7. Screw jacks 5 are symmetrically installed on both sides of the lifting bracket 7 through jacking blocks 8. A conveyor support base 6 is fixedly installed at the top end of the screw jack 5. A linkage mechanism is provided between the output end of the reduction motor 1 and the screw jack 5. The reduction motor 1 drives the components inside the screw jack 5 to rotate through the linkage mechanism, so that the screw jack 5 drives the conveyor support base 6 to move upward. When a product moves above the conveyor support base 6 through the output device, the conveyor support base 6 can drive the product to move upward automatically.

[0020] On both sides of the conveyor support base 6, lift connectors 14 are symmetrically arranged. On one side of the lift connector 14, a conveyor connector 15 is provided. Fixing holes are provided on both the lift connector 14 and the conveyor connector 15. Bolts are arranged inside the fixing holes. The lift connector 14 is detachably connected to the top end of the lead screw 20 through a bolt, and the conveyor connector 15 is detachably connected to the conveying equipment through a bolt. Align the fixing hole on the lift connector 14 with the fixing hole at the top end of the lead screw 20, and screw the bolt into the interior of the fixing hole and penetrate through the interior of the lift connector 14 and the lead screw 20 to fix the lift connector 14 and the top end of the lead screw 20 together, that is, the conveyor support base 6 and the lead screw 20 are connected to each other, and the lead screw 20 can drive the conveyor support base 6 to move up and down. Align the mounting hole on the conveyor connector 15 with the mounting hole on the conveying equipment, and screw the bolt into the interior of the fixing hole and penetrate through the interior of the conveyor connector 15 and the conveying equipment to fix the conveyor connector 15 and the top end of the conveying equipment together.

[0021] On both sides of the lifting bracket 7, cross beams 11 are symmetrically and fixedly connected. On both sides of the bottom of the cross beam 11, feet 13 are symmetrically and rotatably connected. One end of the foot 13 is provided with a connection hole. The cross beams 11 on both sides of the lifting bracket 7 are connected to the conveying equipment through support rods 12 and feet 13, so that the cross beam 11 and the foot 13 cooperate to support the lifting bracket 7, and the foot 13 can rotate around the bottom end of the support rod 12, so that the connection holes on the foot 13 and the connection holes on the conveying equipment are parallel to each other in position. Then, use connection bolts to fix this lifting mechanism to the conveying equipment, making the lifting mechanism more firmly fixed on the conveying equipment.

[0022] The linkage mechanism includes a coupling 2, a steering gear 3, a transmission shaft 4, and a worm 16. The output end of the reduction motor 1 is fixedly connected to the coupling 2. Steering gears 3 are symmetrically and fixedly installed at both ends of the coupling 2. Transmission shafts 4 are symmetrically and fixedly connected to both ends of the steering gear 3. One end of the transmission shaft 4 is fixedly connected to a worm 16, and the outer wall of the worm 16 meshes with the outer wall of the turbine 18.

[0023] The steering gear 3 includes a connecting shaft 21, bevel gears 22, and a housing 23. Two bevel gears 22 are rotatably connected inside the housing 23. The positions of the two bevel gears 22 are perpendicular to each other, and their outer walls mesh with each other. A connecting shaft 21 is fixedly connected inside the two bevel gears 22. One end of one connecting shaft 21 is fixedly connected to one end of the coupling 2, and both ends of the other connecting shaft 21 are fixedly connected to one end of the two transmission shafts 4 respectively.

[0024] The output end of the reduction motor 1 is fixedly connected to one of the connecting shafts 21 inside the steering gear 3 through a coupling 2, and the outer walls of the bevel gears 22 perpendicular to each other inside the steering gear 3 are meshed with each other, so as to drive the other connecting shaft 21 to rotate. At this time, both ends of the connecting shaft 21 are fixedly connected to two transmission shafts 4 respectively, so as to drive the two transmission shafts 4 to rotate on the top of the lifting bracket 7, and then drive the worm 16 to rotate through the transmission shaft 4.

[0025] The screw jack 5 includes a housing 17, a turbine 18, a threaded sleeve 19 and a screw rod 20. The turbine 18 is rotatably installed inside the housing 17. The top of the turbine 18 is fixedly connected to a threaded sleeve 19. The inside of the threaded sleeve 19 is threadedly connected to a screw rod 20. The outer wall of the screw rod 20 is slidably connected to the top end of the housing 17. The top end of the screw rod 20 is fixedly connected to the bottom of the conveyor support seat 6. The worm 16 is meshed with the outer wall of the turbine 18, which can drive the turbine 18 to rotate inside the housing 17. And the threaded sleeve 19 is fixed to the turbine 18, so as to drive the threaded sleeve 19 to rotate inside the screw jack 5. And the reduction motor 1 can rotate forward and backward, so that the threaded sleeve 19 can also rotate forward and backward. And because the threaded sleeve 19 is in threaded cooperation with the screw rod 20, and the housing 17 restricts the movement track of the screw rod 20, the screw rod 20 is driven to move up and down reciprocally inside the screw jack 5. The top end of the screw rod 20 is fixed to the conveyor support seat 6, driving the conveyor support seat 6 to perform lifting operations.

[0026] One side of the lifting bracket 7 is fixedly connected to a limit switch mounting seat 9. The top end of the limit switch mounting seat 9 is fixedly connected to a limit switch 10. A controller is arranged outside the reduction motor 1. The limit switch 10 is electrically connected to the controller through a wire. When the conveyor support seat 6 drives the product to move upward, it will contact the limit switch 10. The limit switch 10 generates an electrical signal and transmits it to the controller through the wire. The controller can control the start and stop of the reduction motor 1, so as to stop the rotation of the reduction motor 1 when the product rises to a specified position, that is, the lifting movement of the conveyor support seat 6 stops.

[0027] For the lifting mechanism, the output end of the reduction motor 1 is fixedly connected to one of the connecting shafts 21 inside the steering gear 3 through the coupling 2, and the outer walls of the bevel gears 22 perpendicular to each other inside the steering gear 3 are meshed with each other, so as to drive the other connecting shaft 21 to rotate. At this time, both ends of the connecting shaft 21 are fixedly connected to the two transmission shafts 4 respectively, so as to drive the two transmission shafts 4 to rotate at the top of the lifting bracket 7, and then drive the worm 16 to rotate through the transmission shaft 4. The outer wall of the worm 16 is meshed with the outer wall of the turbine 18, which can drive the turbine 18 to rotate inside the housing 17. The threaded sleeve 19 is fixedly connected to the turbine 18, so as to drive the threaded sleeve 19 to rotate inside the screw jack 5. The reduction motor 1 can rotate forward and backward, so that the threaded sleeve 19 can also rotate forward and backward. Also, because the threaded sleeve 19 is in threaded cooperation with the screw rod 20, and the housing 17 restricts the movement track of the screw rod 20, the screw rod 20 is driven to reciprocate up and down inside the screw jack 5. The top end of the screw rod 20 is fixedly connected to the conveyor support seat 6, driving the conveyor support seat 6 to perform lifting operations.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting mechanism capable of quickly and accurately adjusting the height of a conveying device, comprising a lifting bracket (7), characterized in that: A reduction motor (1) is installed at the top of the lifting bracket (7). On both sides of the lifting bracket (7), screw jacks (5) are symmetrically installed through elevator pads (8). The top of the screw jack (5) is fixedly installed with a conveyor support base (6). A linkage mechanism is provided between the output end of the reduction motor (1) and the screw jack (5). The screw jack (5) includes a housing (17), a turbine (18), a threaded sleeve (19), and a screw rod (20). The turbine (18) is rotatably installed inside the housing (17). The top of the turbine (18) is fixedly connected with a threaded sleeve (19). The inside of the threaded sleeve (19) is threadedly connected with a screw rod (20). The outer wall of the screw rod (20) is slidably connected with the top end of the housing (17). The top end of the screw rod (20) is fixedly connected with the bottom of the conveyor support base (6).

2. The lifting mechanism for quickly and accurately adjusting the height of the conveying device according to claim 1, wherein: On both sides of the conveyor support base (6), elevator connectors (14) are symmetrically provided. On one side of the elevator connector (14), a conveyor connector (15) is provided. Fixing holes are provided on both the elevator connector (14) and the conveyor connector (15). Bolts are provided inside the fixing holes. The elevator connector (14) is detachably connected to the top end of the screw rod (20) through a bolt. The conveyor connector (15) is detachably connected to the conveying equipment through a bolt.

3. The lifting mechanism for quickly and accurately adjusting the height of the conveying device according to claim 1, characterized in that: The linkage mechanism includes a coupling (2), a steering gear (3), a transmission shaft (4), and a worm (16). The output end of the reduction motor (1) is fixedly connected with a coupling (2). Steering gears (3) are symmetrically fixedly installed at both ends of the coupling (2). Transmission shafts (4) are symmetrically fixedly connected to both ends of the steering gear (3). One end of the transmission shaft (4) is fixedly connected with a worm (16). The worm (16) meshes with the outer wall of the turbine (18).

4. A lifting mechanism for quickly and accurately adjusting the height of a conveying device according to claim 3, characterized in that: The steering gear (3) includes a connecting shaft (21), bevel gears (22), and a housing (23). Two bevel gears (22) are rotatably connected inside the housing (23). The positions of the two bevel gears (22) are perpendicular to each other, and their outer walls mesh with each other. Connecting shafts (21) are fixedly connected inside the two bevel gears (22). One end of one connecting shaft (21) is fixedly connected with one end of the coupling (2). The two ends of the other connecting shaft (21) are respectively fixedly connected with one end of the two transmission shafts (4).

5. A lifting mechanism for quickly and accurately adjusting the height of a conveying device according to claim 1, characterized in that: A limit switch mounting seat (9) is fixedly connected to one side of the lifting bracket (7). A limit switch (10) is fixedly connected to the top end of the limit switch mounting seat (9). A controller is provided outside the reduction motor (1). The limit switch (10) is electrically connected to the controller through a wire.

6. The lifting mechanism for quickly and accurately adjusting the height of the conveying device according to claim 1, characterized in that: Cross beams (11) are symmetrically fixedly connected to both sides of the lifting bracket (7). At both sides of the bottom of the cross beam (11), floor feet (13) are symmetrically rotatably connected. A connection hole is provided at one end of the floor foot (13).

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