Lifting device of stacking machine

Abstract

The utility model discloses a stacker lifting device, belongs to the field of lifting devices, and solves the problems that when a rope reel and a lifting motor are connected and fixed in the prior art, time and labor are wasted during disassembly and assembly, and an anti-overload mechanism is lacked. The device mainly comprises a machine body frame, the machine body frame comprises an upper cross beam, the upper cross beam is provided with an anti-overload mechanism, the anti-overload mechanism is transversely arranged, the anti-overload mechanism fixes one end of a rope, the other end of the rope is connected with a lifting mechanism after bypassing a pulley block, and the lifting mechanism comprises a steel wire hub and a lifting motor. The steel wire hub is connected with an output shaft of the lifting motor through a tensioning sleeve, and an anti-disengaging baffle is arranged on the steel wire hub. By the adoption of the tensioning sleeve connection mode, installation and detachment are convenient, manpower is saved, centering precision is high, connection is stable and reliable, and equipment can be protected against damage during overload.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting devices, and in particular to a stacker lifting device. Background Art

[0002] A stacker is a special crane that uses a fork or a string as a picking device to grab, transport and stack or pick up and place unit goods from high-rise shelves in warehouses, workshops, etc. It is a type of storage equipment. It is responsible for stacking goods in the warehouse, and the operating efficiency of the stacker directly affects the operating efficiency of the entire warehouse system. In the context of Industry 4.0 and intelligent manufacturing, the stacker is mainly responsible for the tasks of outbound and inbound storage in warehousing logistics. Technical optimization and structural design can improve its operating efficiency, thereby improving the work efficiency of the entire automated warehouse.

[0003] The stacker is mainly composed of a walking mechanism, a lifting mechanism, a fork mechanism, a positioning system and a mechanical structure system. The application with application number CN211644413U discloses a single-rope winding hoist, including a vertical rotating rod arranged at the center position of the upper end surface of the base, one end of the rotating rod is rotatably connected to a lifting rod, a cable drum is arranged on the lifting rod, one side of the cable drum is transmission-connected to a lifting motor, one end of the lifting rod is rotatably connected to a rotating wheel, a rope is wound around the cable drum and the rotating wheel, and a rope hook is arranged at one end of the rope; the lifting motor and the cable drum of the device are usually connected and fixed with a key and the double output shaft of the lifting motor, and the key and the drum are generally interference fit, and disassembly and assembly are time-consuming and labor-intensive. At present, there is a lack of a wire hub and a lifting motor that is easier to install. Summary of the invention

[0004] The purpose of the utility model is to provide a stacker lifting device to solve the problem in the prior art that it is time-consuming and laborious to disassemble and assemble the rope drum when it is connected and fixed to the lifting motor; and the stacker lifting device lacks an anti-overload device, which poses a safety hazard.

[0005] The utility model is realized by the following technical solutions:

[0006] A stacker lifting device comprises a machine frame, the machine frame comprises an upper crossbeam, an anti-overload mechanism is arranged on the upper crossbeam, the anti-overload mechanism is arranged horizontally, the anti-overload mechanism fixes one end of a rope, the other end of the rope passes around a pulley block and is connected to the lifting mechanism, the lifting mechanism comprises a wire hub and a lifting motor, the wire hub is connected to the output shaft of the lifting motor through a tensioning sleeve, an anti-slip baffle is arranged on the wire hub, the anti-slip baffle is pressed against the outside of the rope, and the rope is prevented from moving between the grooves of the wire hub.

[0007] Furthermore, the anti-overload mechanism includes a fixed seat, which is fixed on the body frame. A sliding shaft is slidably provided inside the fixed seat. Both ends of the sliding shaft extend out of the fixed seat. One end of the sliding shaft is connected to a lifting ring, and the other end is sleeved with a sleeve. A spring is provided inside the sleeve, and the spring is sleeved on the sliding shaft. A travel switch cooperating with the sleeve is provided on the body frame, and the travel switch controls the start of the lifting motor. An adjustment mechanism is provided between the fixed seat and the lifting ring, and the adjustment mechanism is threadedly connected to the sliding shaft.

[0008] Furthermore, a plurality of rope clamps are provided on one side of the lifting ring, and the plurality of rope clamps are arranged equidistantly in the horizontal direction to stabilize the rope and provide a guiding function.

[0009] Furthermore, the lifting motor is a double-output shaft motor.

[0010] Furthermore, the wire hub comprises a wire hub I and a wire hub II, and the wire hub I and the wire hub II are respectively fixed to both sides of the lifting motor.

[0011] Furthermore, an anti-slip baffle is provided between the wire hub I and the wire hub II, and the anti-slip baffle includes a left baffle and a right baffle, and the left baffle and the right baffle respectively press against the outer side of the rope pressed on the wire hub I and the wire hub II.

[0012] Furthermore, the pulley block includes three fixed pulleys, and the three fixed pulleys are all fixed on the machine body frame to change the direction of the rope.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model adopts a tension sleeve connection method to replace the original key connection method. The installation method of the tension sleeve only needs to tighten the bolts on the tension sleeve, which solves the problem of inconvenient installation, improves the installation efficiency, and increases the concentricity of the wire hub and the lifting motor drive shaft; and the utility model installs an anti-overload component on the body frame. When the device is overloaded, the operation of the lifting device can be stopped urgently to avoid irreversible damage to the motor.

[0015] 2. The utility model solves the problem of large space occupation of the original solution by installing the anti-overload component horizontally, increases the upper limit of the operating height of the cargo platform, and improves the space utilization rate of the vertical warehouse. The pulley group is used to convert the horizontal pulling force into the vertical pulling force, replacing the anti-overload component to bear the longitudinal torque. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the whole machine view of the stacker;

[0017] Figure 2 To enhance the main view of the organization;

[0018] Figure 3 It is the left view of the lifting mechanism;

[0019] Figure 4 This is the main view of the beam;

[0020] Figure 5 For overload protection device components;

[0021] In the figure: 1. anti-slip baffle; 2. wire hub I; 3. tension sleeve; 4. wire hub II; 5. lifting motor; 6. anti-overload mechanism; 7. rope clamp; 8. lifting ring; 9. adjustment mechanism; 10. spring; 11. sleeve; 12. sliding shaft; 13. pulley block; 14. lifting mechanism; 15. machine frame. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by ordinary technicians in this field without making creative work should all fall within the scope of protection of this application. In addition, the directional words mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only referenced to the directions of the drawings. Therefore, the directional words used are used to illustrate rather than limit the creation of the present invention.

[0023] The utility model is further described below in conjunction with the accompanying drawings.

[0024] Embodiment 1: A stacker lifting device, such as Figure 1-Figure 3 As shown, it includes a body frame 15, and the body frame 15 includes an upper crossbeam, on which an anti-overload mechanism 6 is provided. The anti-overload mechanism 6 is arranged horizontally, and the anti-overload mechanism 6 fixes one end of the rope, and the other end of the rope passes around the pulley block 13 and is connected to the lifting mechanism 14. The lifting mechanism 14 includes a wire hub and a lifting motor 5. The wire hub is connected to the output shaft of the lifting motor 5 through a tensioning sleeve 3. The wire hub and the output shaft of the lifting motor 5 maintain a certain concentricity to ensure that the tensioning sleeve 3 can be smoothly inserted. The tensioning sleeve 3 is acted on by high-strength tension bolts to generate huge clamping force between the inner ring and the output shaft and between the outer ring and the hub, so as to realize a keyless connection between the wire hub and the drive shaft of the lifting motor 5. When subjected to load, the tensioning sleeve 3, the wire hub and the output shaft have a combined pressure and the friction force generated thereby to transmit torque, axial force and the combined load of the two. The wire wheel hub is provided with an anti-slip baffle 1, which is pressed against the outer side of the rope to prevent the rope from moving between the grooves of the wire wheel hub. The lifting motor 5 drives the wire wheel hub to rotate to retract and release the rope.

[0025] After the wire wheel hub is placed into the transmission shaft of the lifting motor 5, the tension sleeve 3 is directly installed at the center of the wheel hub. The installation of the tension sleeve 3 only requires tightening the bolts on the tension sleeve 3 to securely connect the transmission shaft and the wire wheel hub. The installation efficiency of this connection method has been greatly improved compared with the above-mentioned traditional installation method. It is easy to install, adjust and disassemble, and saves manpower. It has high centering accuracy, stable and reliable connection, and can protect the equipment from damage when overloaded.

[0026] The present application adopts a method of connecting the tension sleeve 3 with the lifting motor 5, and the wire hub and the output shaft are matched for connection. A keyless connection device is used to realize power transmission by tightening the high-strength bolts to generate pressure and friction between the containing surfaces. It is easy to install, adjust and disassemble, and saves manpower. It has high centering accuracy and stable and reliable connection, and can protect the equipment from damage when overloaded.

[0027] Embodiment 2: A stacker lifting device, such as Figure 4-Figure 5 As shown, the overload protection mechanism 6 includes a fixed seat, which is fixed on the machine frame 15. A sliding shaft 12 is slidably arranged in the fixed seat. Both ends of the sliding shaft 12 extend out of the fixed seat. One end of the sliding shaft 12 is connected to the lifting ring 8, and the other end is sleeved with a sleeve 11; a spring 10 is arranged inside the sleeve 11, and the spring 10 is sleeved on the sliding shaft 12. A travel switch cooperating with the sleeve 11 is arranged on the machine frame 15, and the travel switch controls the start of the lifting motor 5; an adjusting mechanism 9 is arranged between the fixed seat and the lifting ring 8, and the adjusting mechanism 9 is threadedly connected to the sliding shaft 1 2; a plurality of rope clamps 7 are arranged horizontally and equidistantly on one side of the lifting ring 8; the lifting motor 5 adopts a double output shaft motor, the wire hub includes a wire hub Ⅰ2 and a wire hub Ⅱ4, the wire hub Ⅰ2 and the wire hub Ⅱ4 are respectively fixed on both sides of the lifting motor 5, and the anti-slip baffle 1 is fixed on the left pressure plate and the right pressure plate; an anti-slip baffle 1 is provided between the wire hub Ⅰ2 and the wire hub Ⅱ4, and the anti-slip baffle 1 includes a left baffle and a right baffle; the pulley block 13 includes three fixed pulleys, and the three fixed pulleys are fixed on the body frame 15. The rest is the same as that of embodiment 1.

[0028] The key components of the anti-overload device are a lifting ring 8, an adjustment mechanism 9, a spring 10, a sleeve 11, and a sliding shaft 12. The present application installs the anti-overload component horizontally, and uses a fixed pulley to convert the lateral tension into vertical tension, replacing the anti-overload component in bearing the longitudinal torque. This installation method can greatly save longitudinal space and increase the effective travel distance of the cargo platform. The electric ring fixes one end of the rope, and then the rope passes through three rope clamps 7, bypasses the fixed pulley on the right side of the upper beam, and then goes down around the pulley on the cargo platform, and then goes up around the two large pulleys of the upper beam, and finally connects to the wire drum. There is a spring 10 on the anti-overload mechanism 6. Under normal circumstances, the spring 10 remains within the normal elastic deformation value. If it is overloaded, the spring 10 will be compressed, and at this time, the sleeve 11 will be driven to toggle the travel switch in the compressed direction, and the stacker will be powered off; if the rope breaks, the spring 10 will extend, and then drive the sleeve 11 to toggle the travel switch on the other side, and the stacker will be powered off. The adjusting mechanism includes an adjusting nut and a connecting sleeve. One end of the connecting sleeve is threadedly connected to the lifting ring through the adjusting nut, and the other end is threadedly connected to the sliding shaft through the adjusting nut. The distance between the lifting ring and the sliding shaft is adjusted by the adjusting nut, and then the installation position of the sleeve is adjusted.

[0029] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. A stacker lifting device, comprising a machine frame (15), characterized in that: The machine frame (15) comprises an upper crossbeam, on which an anti-overload mechanism (6) is arranged transversely, the anti-overload mechanism (6) fixes one end of a rope, and the other end of the rope passes through a pulley block (13) and is connected to a lifting mechanism (14), the lifting mechanism (14) comprises a wire hub and a lifting motor (5), the wire hub is connected to the output shaft of the lifting motor (5) via a tension sleeve (3), and an anti-slip baffle (1) is provided on the wire hub.

2. The stacker lifting device according to claim 1, characterized in that: The anti-overload mechanism (6) comprises a fixed seat, which is fixed on the machine frame (15); a sliding shaft (12) is slidably arranged in the fixed seat, both ends of the sliding shaft (12) extend out of the fixed seat, one end of the sliding shaft (12) is connected to the lifting ring (8), and the other end is sleeved with a sleeve (11); a spring (10) is arranged inside the sleeve (11), and the spring (10) is sleeved on the sliding shaft (12); a travel switch cooperating with the sleeve (11) is arranged on the machine frame (15), and the travel switch controls the start of the lifting motor (5); an adjusting mechanism (9) is arranged between the fixed seat and the lifting ring (8), and the adjusting mechanism (9) is threadedly connected to the sliding shaft (12).

3. The stacker lifting device according to claim 2, characterized in that: A plurality of rope clamps (7) are arranged on one side of the lifting ring (8), and the plurality of rope clamps (7) are arranged at equal distances in the transverse direction.

4. The stacker lifting device according to claim 1, characterized in that: The lifting motor (5) is a double output shaft motor.

5. The stacker lifting device according to claim 4, characterized in that: The wire wheel hub comprises a wire wheel hub I (2) and a wire wheel hub II (4), and the wire wheel hub I (2) and the wire wheel hub II (4) are respectively fixed to two sides of the lifting motor (5).

6. The stacker lifting device according to claim 5, characterized in that: An anti-slip baffle (1) is provided between the wire wheel hub I (2) and the wire wheel hub II (4), and the anti-slip baffle (1) comprises a left baffle and a right baffle.

7. The stacker lifting device according to claim 1, characterized in that: The pulley block (13) comprises three fixed pulleys, and the three fixed pulleys are all fixed on the upper crossbeam.

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