Lifting device

Abstract

The invention relates to the technical field of mechanical engineering, in particular to a hoisting device which comprises a bearing frame serving as a carrier of the whole device, a transmission mechanism used for hoisting magnetic materials is arranged on the bearing frame and comprises a motor fixedly installed on the bearing frame, and the output end of the motor is fixedly connected with a transmission shaft. The transmission shaft is sleeved with a transmission wheel, a transmission rope is wound around the transmission wheel, one end of the transmission rope is fixedly connected to the bearing frame, a connecting wheel is installed on the transmission rope, a suction cup assembly is installed on the connecting wheel, a spring wire is electrically connected to a connector of the bearing frame, and a protection shell used for protecting the spring wire is arranged on the suction cup assembly. The connecting wheel is provided with a detection mechanism used for detecting the position of a magnetic material bearing point, and the bearing frame is provided with a protection mechanism used for conducting braking when the suction cup assembly falls down. According to the invention, the sucker assembly is prevented from continuously falling when the motor fails, so that the safety of operators and equipment is effectively protected, and the risk of potential accidents is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical engineering, in particular to a lifting and hoisting device. Background Art

[0002] With the acceleration of industrial automation, lifting and hoisting devices play an increasingly important role in various production and logistics systems. In many application scenarios, especially those involving the handling of magnetic materials, the energy applied by traditional lifting and hoisting equipment remains constant regardless of the weight and shape of the material being lifted. Materials of the same weight and shape require different adsorption forces to ensure safety. If the same energy is applied to all materials, some materials will not be effectively adsorbed, which may cause them to slip or be damaged during transportation. For heavier materials, if the energy is insufficient, the equipment will need to make multiple attempts to complete the handling, which increases the operation time and reduces the overall system efficiency. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides a lifting and hoisting device, which has the advantage of adjusting the energy output to the electromagnet according to the shape and weight of the material, thereby solving the problem that it is difficult to output corresponding energy according to the shape and weight of the material.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A lifting and hoisting device comprises a load-bearing frame as a carrier of the entire device, the load-bearing frame is provided with a transmission mechanism for lifting magnetic materials, the transmission mechanism comprises a motor fixedly mounted on the load-bearing frame, the output end of the motor is fixedly connected to a transmission shaft, a transmission wheel is mounted on the transmission shaft, a transmission rope is wound around the transmission wheel, one end of the transmission rope is fixedly connected to the load-bearing frame, a connecting wheel is mounted on the transmission rope, a suction cup assembly is mounted on the connecting wheel, a spring wire is electrically connected to the joint on the load-bearing frame, a protective shell for protecting the spring wire is provided on the suction cup assembly, a detection mechanism for detecting the position of the bearing point of magnetic materials is provided on the connecting wheel, and a protective mechanism for braking the suction cup assembly when it falls is provided on the load-bearing frame.

[0006] Preferably, the suction cup assembly comprises a shell, in which a plurality of electromagnetic strips are installed, and the plurality of electromagnetic strips are distributed in a ring shape.

[0007] Preferably, the protective mechanism includes a speed sensor installed on the load-bearing frame for detecting the output shaft rotation speed, a spur gear is fixedly connected to the end of the output shaft, two sets of transmission sleeves are fixedly connected to the load-bearing frame, a slide rod is slidably connected to the transmission sleeve, a spring is fixedly connected between the slide rod and the transmission sleeve, a rack corresponding to the spur gear is fixedly connected to the slide rod, and an electric telescopic rod is also fixedly installed on the load-bearing frame, and the free end of the electric telescopic rod is fixedly connected to a connecting frame for lifting the rack, and the end of the connecting frame is inserted into the slot at the bottom of the rack.

[0008] Preferably, a single chip microcomputer is provided in the load-bearing frame, and the single chip microcomputer is electrically connected to the motor and the electric telescopic rod respectively.

[0009] Preferably, the detection mechanism includes a transmission ring fixedly connected to the outer shell, a slider is slidably connected inside the transmission ring, a magnetic ring is fixedly mounted on the connecting wheel, and the connecting wheel is also provided with a sensing component for sensing the tilting direction of the outer shell, and a connecting rope is connected between the sensing component and the slider.

[0010] Preferably, the induction component comprises a slot body arranged on the outer wall of the magnetic ring, a magnetic block is slidably connected to the slot body, and the magnetic block and the magnetic ring are magnetically connected.

[0011] Preferably, a tube body is fixedly connected to the magnetic block, a sliding disk is slidably connected in the tube body, and a second spring is fixedly connected between the sliding disk and the bottom wall of the tube body.

[0012] Preferably, an electromagnetic rod is fixedly connected to the sliding disk, and an electromagnetic sleeve magnetically connected to the electromagnetic rod is provided in the tube body.

[0013] Preferably, a hook is fixedly connected to the connecting wheel, a lifting ring is mounted on the hook, and a positioning rope is fixedly connected between the lifting ring and the shell.

[0014] By means of the above technical solution, the present invention provides a lifting and hoisting device, which has at least the following beneficial effects:

[0015] 1. This lifting and hoisting device effectively protects the safety of operators and equipment and reduces the risk of potential accidents by preventing the suction cup assembly from continuing to fall when the motor fails.

[0016] 2. In this lifting and hoisting device, when the material is on the side between the suction cup assemblies, the electromagnetic strips at the corresponding position start to absorb the material, and the electromagnetic strips at other positions do not operate, thereby reducing the cost of equipment operation, and the electromagnetic strips at the corresponding position can increase power and increase their adsorption force on the material.

[0017] 3. The lifting and hoisting device can brake the suction cup assembly below to prevent it from moving further downward without manual intervention, which helps to improve the safety and reliability of the overall operation.

[0018] 4. The lifting and hoisting device has a fixed connection component for firmly connecting the spring wire device with the suction cup assembly. Compared with the traditional suction cup cable reel, the spring wire device of the present invention has the advantages of low cost, low failure rate, and flexible and convenient use.

[0019] 5. The lifting and hoisting device, through the transmission mechanism, allows the equipment to be suitable for the transportation of a variety of magnetic materials, increasing the application flexibility of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention in the front view direction;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention in the side view direction;

[0023] Figure 3 It is a structural schematic diagram of the transmission mechanism of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the detection mechanism of the present invention;

[0025] Figure 5 For the present invention Figure 4 A magnified image of point A;

[0026] Figure 6 It is a schematic structural diagram of the suction cup assembly of the present invention.

[0027] Reference numerals:

[0028] 100. Load-bearing frame;

[0029] 200, transmission mechanism; 201, motor; 202, transmission wheel; 203, transmission rope; 204, connecting wheel; 205, lifting ring; 206, hook; 207, suction cup assembly; 2071, shell; 2072, electromagnetic strip; 208, protective shell; 209, spring wire; 210, joint; 211, transmission shaft; 212, single chip microcomputer; 213, positioning rope;

[0030] 300, detection mechanism; 301, magnetic ring; 302, transmission ring; 303, slider; 304, connecting rope; 305, induction component; 3051, slot body; 3052, magnetic block; 3053, tube body; 3054, electromagnetic rod; 3055, electromagnetic sleeve; 3056, sliding plate; 3057, spring 2;

[0031] 400, protective mechanism; 401, speed sensor; 402, transmission sleeve; 403, spring 1; 404, sliding rod; 405, rack; 406, spur gear; 407, connecting frame; 408, electric telescopic rod. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] With the development of industrial automation and intelligent manufacturing, lifting and hoisting devices have become increasingly important in various production and logistics fields. Traditional lifting systems usually rely on electric motors, transmission devices and robotic arms to achieve material handling. Although this method has improved work efficiency to a certain extent, it also has many limitations and defects.

[0034] The current technology of lifting and hoisting equipment is usually used for some standardized work processes, such as materials of fixed weight and shape. However, many industrial applications involve materials of different weights, shapes and characteristics, which puts more complex requirements on traditional equipment.

[0035] Embodiment 1:

[0036] Traditional lifting systems usually require special clamps or slings, which have limited applicability and cannot be used for materials of different shapes or materials. In order to solve the above problems, Figure 1 , Figure 2 and Figure 6 As shown, a lifting and hoisting device provided by the present invention includes a load-bearing frame 100 as a carrier of the entire device, and a transmission mechanism 200 for hoisting magnetic materials is provided on the load-bearing frame 100, allowing the device to be applicable to the transportation of various magnetic materials, thereby increasing the application flexibility of the device;

[0037] The conventional suction cup cable reel has certain limitations in use, such as large size, complex structure, high failure rate and high maintenance cost. In order to solve the above problems, the transmission mechanism 200 includes a motor 201 fixedly mounted on the load-bearing frame 100, the output end of the motor 201 is fixedly connected to a transmission shaft 211, a transmission wheel 202 is mounted on the transmission shaft 211, a transmission rope 203 is wound around the transmission wheel 202, one end of the transmission rope 203 is fixedly connected to the load-bearing frame 100, a connecting wheel 204 is installed on the transmission rope 203, a suction cup assembly 207 is installed on the connecting wheel 204, a spring wire 209 is electrically connected to the joint 210 on the load-bearing frame 100, and the suction cup assembly 207 is provided with a spring wire 209 for protecting the spring wire. The protective shell 208 of 209, the suction cup assembly 207 absorbs the object, and then the motor 201 starts to drive the transmission shaft 211 to rotate, the transmission shaft 211 drives the transmission wheel 202 to rotate, the transmission wheel 202 rotates to reel up the transmission rope 203, and then the connection wheel 204 is driven to rise by the transmission rope 203, and the suction cup assembly 207 sucks the material as the connection wheel 204 rises, and the spring wire 209 is set, which is made of copper, silicon copper alloy or copper-plated aluminum material, and can maintain stable electrical performance during stretching and contraction, and the protective shell 208 is made of polycarbonate, polypropylene or polyurethane material, which can protect the main body of the spring wire 209 and prevent people from directly contacting the live parts;

[0038] The connecting wheel 204 is provided with a detection mechanism 300 for detecting the position of the bearing point of the magnetic material, which can detect that the center of gravity of the material is at the specific position of the suction cup assembly 207, and then adjust the use of energy in a targeted manner according to the position of the center of gravity;

[0039] The load-bearing frame 100 is provided with a protection mechanism 400 for fixing the suction cup assembly 207 when it falls rapidly. The setting of the protection mechanism 400 can position the suction cup assembly 207 when the motor 201 is powered off to prevent the suction cup assembly 207 from continuing to fall and causing damage.

[0040] Specifically, the suction cup assembly 207 includes a shell 2071, and a plurality of electromagnetic strips 2072 are installed in the shell 2071. The plurality of electromagnetic strips 2072 are distributed in a ring shape, and the electromagnetic strips 2072 at corresponding positions can be activated according to the position of the material, which is beneficial to saving energy.

[0041] Furthermore, a hook 206 is fixedly connected to the connecting wheel 204, a lifting ring 205 is mounted on the hook 206, and a positioning rope 213 is fixedly connected between the lifting ring 205 and the outer shell 2071, so as to facilitate the disassembly and assembly of the outer shell 2071 and to facilitate maintenance thereof.

[0042] According to the embodiment, the fixed connection component is used to firmly connect the spring wire 209 device to the suction cup assembly 207. Compared with the traditional suction cup cable reel, the spring wire 209 device of the present invention has the advantages of low cost, low failure rate, and flexible and convenient use.

[0043] Embodiment 2:

[0044] Due to the sudden drop, the suction cup and other parts of the lifting equipment (such as motors, transmission devices, etc.) may be subjected to unexpected impact force, causing equipment wear or damage and increasing maintenance costs. In order to solve the above problems, combined with Figure 3As shown, on the basis of the first embodiment, the protection mechanism 400 includes a speed sensor 401 installed on the load-bearing frame 100 for detecting the rotation speed of the output shaft, a spur gear 406 is fixedly connected to the end of the output shaft, two sets of transmission sleeves 402 are fixedly connected to the load-bearing frame 100, a slide rod 404 is slidably connected to the transmission sleeve 402, a spring 403 is fixedly connected between the slide rod 404 and the transmission sleeve 402, a rack 405 corresponding to the spur gear 406 is fixedly connected to the slide rod 404, and an electric telescopic rod 408 is also fixedly installed on the load-bearing frame 100, and a connecting frame 407 for lifting the rack 405 is fixedly connected to the free end of the electric telescopic rod 408, and the end of the connecting frame 407 is inserted into the slot at the bottom of the rack 405. When the motor 201 fails, the suction cup assembly 207 will move downward quickly due to its own weight, and then the suction cup assembly 207 will The transmission wheel 202 is rotated by pulling the transmission rope 203, and the transmission shaft 211 rotates with the transmission wheel 202. The speed sensor 401 detects that the rotation speed of the transmission shaft 211 changes more than the rotation speed of the transmission shaft 211 driven by the motor 201, and then the electric telescopic rod 408 is started. The electric telescopic rod 408 contracts and drives the connecting frame 407 to descend. The connecting frame 407 does not apply thrust to the rack 405, and then the spring 1 403 pushes the slide bar 404 to move downward, and the rack 405 moves downward with the slide bar 404. Then the rack 405 engages with the spur gear 406 to prevent it from rotating, and the transmission wheel 202 on the transmission shaft 211 will not continue to rotate, so that the suction cup assembly 207 below can be braked to prevent it from continuing to move downward without manual intervention, which helps to improve the safety and reliability of the overall operation.

[0045] The extension of the free end of the electric telescopic rod 408 can remove the rack 405 so that it is not engaged with the spur gear 406. The transmission wheel 202 can rotate normally to drive the suction cup assembly 207 to rise and fall. When the electric telescopic rod 408 and the motor 201 lose power at the same time, the spur gear 406 can be stuck normally so that it stops running, and the suction cup assembly 207 is braked, which can prevent the sudden fall of the suction cup assembly 207 from causing damage to materials or equipment, thereby reducing maintenance and replacement costs.

[0046] Specifically, a single chip microcomputer 212 is disposed in the load-bearing frame 100 , and the single chip microcomputer 212 is electrically connected to the motor 201 and the electric telescopic rod 408 , respectively.

[0047] According to the embodiment, by preventing the suction cup assembly 207 from continuing to fall when the motor 201 fails, the safety of the operator and the equipment is effectively protected and the risk of potential accidents is reduced.

[0048] Embodiment three:

[0049] During the handling process, the fixed energy or power output cannot be adjusted according to the weight change of the material, resulting in energy waste and reduced system efficiency. Especially when handling light materials, excessive energy applied is not only ineffective, but also increases the burden on the equipment. In order to solve the above problems, combined with Figure 4 and Figure 5 As shown, on the basis of the first embodiment, the detection mechanism 300 includes a transmission ring 302 fixedly connected to the shell 2071, a slider 303 is slidably connected inside the transmission ring 302, a magnetic ring 301 is fixedly installed on the connecting wheel 204, and a sensing component 305 for sensing the tilted position of the shell 2071 is also provided on the connecting wheel 204, and a connecting rope 304 is connected between the sensing component 305 and the slider 303. After the suction cup assembly 207 absorbs the material, if the material is at the center position of the suction cup assembly 207, the suction cup assembly 207 will not be offset, and the electromagnetic strip 2072 will absorb the material normally. When the material is on the side between the suction cup assemblies 207, the electromagnetic strip 2072 at the corresponding position starts to absorb the material, and the electromagnetic strips 2072 at other positions do not operate, thereby reducing the cost of equipment operation, and the electromagnetic strips 2072 at the corresponding position can increase the power and increase its adsorption force on the material.

[0050] Specifically, the sensing component 305 includes a groove body 3051 arranged on the outer wall of the magnetic ring 301, and a magnetic block 3052 is slidably connected to the groove body 3051. The magnetic block 3052 is magnetically connected to the magnetic ring 301. When the material is on the side of the bottom of the shell 2071, the shell 2071 will also be tilted, so that the slider 303 moves to the inclined position along the transmission ring 302. At the same time, the magnetic block 3052 is pulled to move by the connecting rope 304 during the sliding movement. The magnetic ring 301 detects the moving position of the magnetic block 3052, and the detection result can be transmitted to the single-chip computer 212 through the Hall effect sensor, so that the electromagnetic strip 2072 at the corresponding position can be started to adsorb the material. By activating only the required electromagnetic strip 2072, the consumption of electric energy is reduced, thereby reducing the operating cost of the equipment and improving energy efficiency.

[0051] Furthermore, a tube body 3053 is fixedly connected to the magnetic block 3052, and a sliding disk 3056 is slidably connected inside the tube body 3053. A spring 2 3057 is fixedly connected between the sliding disk 3056 and the bottom wall of the tube body 3053. When the connecting rope 304 pulls the electromagnet, the sliding disk 3056 is also pulled to move. The heavier the material, the greater the inclination of the outer shell 2071, and the more the sliding disk 3056 moves downward.

[0052] An electromagnetic rod 3054 is fixedly connected to the sliding disk 3056, and an electromagnetic sleeve 3055 magnetically connected to the electromagnetic rod 3054 is provided in the tube body 3053. The electromagnetic rod 3054 moves with the sliding disk 3056, and the electromagnetic sleeve 3055 detects the moving position of the electromagnetic rod 3054. The tilt amplitude of the housing 2071 can be detected, which represents that the heavier the material, the more likely it is that the power to the electromagnet can be controlled according to the weight of the material.

[0053] Through the above embodiments, it can be known that: first, the motor 201 starts to drive the transmission shaft 211 to rotate, and the transmission wheel 202 rotates along with the transmission shaft 211. The transmission wheel 202 rotates to unwind the transmission rope 203, which can drive the shell 2071 on the connecting wheel 204 to move downward, and then the material is adsorbed. Then, the motor 201 starts to drive the transmission shaft 211 to reverse, driving the material to rise and lift it. Repeat the above steps to continuously lift the material.

[0054] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting and hoisting device, comprising a load-bearing frame (100) as a carrier of the entire device, characterized in that: The load-bearing frame (100) is provided with a transmission mechanism (200) for lifting magnetic materials; The transmission mechanism (200) comprises a motor (201) fixedly mounted on the load-bearing frame (100); the output end of the motor (201) is fixedly connected to a transmission shaft (211); a transmission wheel (202) is mounted on the transmission shaft (211); a transmission rope (203) is wound around the transmission wheel (202); one end of the transmission rope (203) is fixedly connected to the load-bearing frame (100); a connecting wheel (204) is mounted on the transmission rope (203); a suction cup assembly (207) is mounted on the connecting wheel (204); a spring wire (209) is electrically connected to a joint (210) on the load-bearing frame (100); and a protective shell (208) for protecting the spring wire (209) is provided on the suction cup assembly (207); A detection mechanism (300) for detecting the position of a bearing point of the magnetic material is provided on the connecting wheel (204); The load-bearing frame (100) is provided with a protection mechanism (400) for braking the suction cup assembly (207) when it falls.

2. The lifting and hoisting device according to claim 1, characterized in that: The suction cup assembly (207) comprises a shell (2071), and a plurality of electromagnetic strips (2072) are installed in the shell (2071), and the plurality of electromagnetic strips (2072) are distributed in a ring shape.

3. The lifting and hoisting device according to claim 1, characterized in that: The protection mechanism (400) comprises a speed sensor (401) mounted on the load-bearing frame (100) for detecting the rotation speed of the output shaft, a spur gear (406) is fixedly connected to the end of the output shaft, two sets of transmission sleeves (402) are fixedly connected to the load-bearing frame (100), a slide bar (404) is slidably connected to the transmission sleeve (402), a spring (403) is fixedly connected between the slide bar (404) and the transmission sleeve (402), a rack (405) corresponding to the spur gear (406) is fixedly connected to the slide bar (404), and an electric telescopic rod (408) is also fixedly mounted on the load-bearing frame (100), a connecting frame (407) for lifting the rack (405) is fixedly connected to the free end of the electric telescopic rod (408), and the end of the connecting frame (407) is inserted into a slot at the bottom of the rack (405).

4. The lifting and hoisting device according to claim 3, characterized in that: A single-chip microcomputer (212) is provided in the load-bearing frame (100), and the single-chip microcomputer (212) is electrically connected to the motor (201) and the electric telescopic rod (408) respectively.

5. The lifting and hoisting device according to claim 1, characterized in that: The detection mechanism (300) comprises a transmission ring (302) fixedly connected to the outer shell (2071), a slider (303) slidably connected inside the transmission ring (302), a magnetic ring (301) fixedly mounted on the connecting wheel (204), a sensing component (305) for sensing the tilting direction of the outer shell (2071) is also provided on the connecting wheel (204), and a connecting rope (304) is connected between the sensing component (305) and the slider (303).

6. The lifting and hoisting device according to claim 5, characterized in that: The induction component (305) comprises a slot body (3051) arranged on the outer wall of the magnetic ring (301), a magnetic block (3052) is slidably connected to the slot body (3051), and the magnetic block (3052) and the magnetic ring (301) are magnetically connected.

7. The lifting and hoisting device according to claim 6, characterized in that: The magnetic block (3052) is fixedly connected to a tube body (3053), a sliding plate (3056) is slidably connected inside the tube body (3053), and a second spring (3057) is fixedly connected between the sliding plate (3056) and the bottom wall of the tube body (3053).

8. The lifting and hoisting device according to claim 7, characterized in that: The sliding plate (3056) is fixedly connected with an electromagnetic rod (3054), and an electromagnetic sleeve (3055) magnetically connected to the electromagnetic rod (3054) is arranged in the tube body (3053).

9. The lifting and hoisting device according to claim 1, characterized in that: A hook (206) is fixedly connected to the connecting wheel (204), a lifting ring (205) is sleeved on the hook (206), and a positioning rope (213) is fixedly connected between the lifting ring (205) and the outer shell (2071).

Images