Trapezoidal lead screw heavy-load lifting mechanism
By designing the fixing mechanism and adjusting lifting mechanism of the trapezoidal screw heavy load lifting mechanism, the problems of poor stability and large wear of the device during transportation are solved, and the effect of stable transportation and wear reduction is achieved.
Patent Information
- Application Number
- CN202421721314.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-19
AI Technical Summary
When the existing lifting mechanism transports ball-type cargo, the cargo moves inside the fence, which has poor stability and continuous movement leads to greater wear on the lifting mechanism.
A trapezoidal lead screw heavy load lifting mechanism is designed, including a fixing mechanism and an adjusting lifting mechanism. The fixing mechanism stabilizes the ball cargo through arc-shaped fixing blocks and connecting rods, and the adjustment and lifting mechanism uses trapezoidal screws and adjustment components to achieve a self-locking function to avoid sliding up and down without external thrust or tension.
The stable lifting and transportation of spherical goods is achieved, which reduces wear on the device during transportation, and improves the applicability and stability of the device, avoids increasing the high procurement cost of the brake mechanism.
Smart Images
Figure CN222795061U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of material transportation, in particular to a trapezoidal lead screw heavy-load lifting mechanism. Background Art
[0002] In industrial production, lifting mechanisms are widely used in material transportation, equipment installation, production line automation, etc., which improves production efficiency and product quality. In the process of transportation, in order to prevent the goods from moving and falling during the lifting process, the lifting mechanisms in the prior art mostly set up fences to block the goods, thereby preventing them from falling and posing a hidden danger to the safety of the workers. However, for some spherical goods, such goods will still move inside the fences and have poor stability. At the same time, due to the continuous movement of the spherical goods, the lifting mechanisms are also greatly worn. Utility Model Content
[0003] In view of the shortcomings of the prior art, the utility model provides a trapezoidal screw heavy-load lifting mechanism, which has the advantages of being able to stably lift and transport spherical goods and reduce the wear caused during the transportation process. It solves the problem that when the lifting mechanism in the prior art transports some spherical goods, such goods will move inside the enclosure and have poor stability. At the same time, the spherical goods will cause great wear to the lifting mechanism due to the continuous movement.
[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:
[0005] The trapezoidal screw heavy-load lifting mechanism comprises a load-bearing base used as the whole of the load-bearing mechanism, the top of the load-bearing base is provided with an adjusting lifting mechanism with a self-locking function, the top of the adjusting lifting mechanism is provided with a fixing mechanism for stably fixing spherical cargo, the fixing mechanism comprises a bottom plate and arc-shaped fixing blocks symmetrically distributed in pairs, the top of the bottom plate is fixedly connected with a square enclosure, a connecting rod is fixedly connected between the two arc-shaped fixing blocks on the same side, a through groove is provided on the two arc-shaped fixing blocks on the same side, limiting grooves are provided on both sides of the two through grooves on the same side, a through hole is provided on the opposite side of the two connecting rods, miniature telescopic rods are installed in the two through holes, the movable ends of the two miniature telescopic rods are fixedly connected with fixing plates, the two fixing plates slide in the two limiting grooves on the same side respectively, and a driving component for driving the two connecting rods to move relative to each other is provided on the side wall of the square enclosure.
[0006] Preferably, the driving assembly includes a load-bearing plate fixedly connected to the two side walls of the square enclosure, the side walls of the square enclosure are fixedly connected to a limiting plate, the bottoms of the two connecting rods are fixedly connected to a T-shaped connecting plate that can slide on the limiting plate, the square enclosure is located below the load-bearing plate and is fixedly connected to a round rod, the square enclosure is located below the load-bearing plate and is rotatably connected to a bidirectional threaded rod, the two T-shaped connecting plates are respectively threadedly connected to the two sections of the thread of the bidirectional threaded rod, and the two T-shaped connecting plates are respectively slidably connected on the round rod.
[0007] Preferably, the adjustable lifting mechanism includes a fixed base fixedly connected to the load-bearing base, two guide rails are fixedly connected to one side of the fixed base, sliders are slidably connected in the two guide rails, a lifting component is fixedly connected to one side of the two sliders, two bearing seats are fixedly connected to one side of the fixed base, and an adjustment component for adjusting the lifting and lowering of the lifting component is arranged between the two bearing seats.
[0008] Preferably, the adjustment assembly includes a stopper fixedly connected to one side of the lifting component, a lifting trapezoidal screw is installed between the two bearing seats, a sleeve is threadedly connected to the lifting trapezoidal screw, the stopper and the sleeve are fixedly connected, a worm gear is fixedly connected to the bottom end of the lifting trapezoidal screw, a protective box is fixedly connected to one side of the bearing seat close to the worm gear, and a worm meshing with the worm gear is rotatably connected in the protective box.
[0009] Preferably, a motor for driving the bidirectional threaded rod is installed on one side of the square enclosure, and a micro motor for driving the worm is installed on one side of the protection box.
[0010] Preferably, balls are installed at the connection points between the two T-shaped connecting plates and the limiting plates.
[0011] By means of the above technical solution, the utility model provides a trapezoidal screw heavy-load lifting mechanism, which has at least the following beneficial effects:
[0012] 1. The utility model sets a fixing mechanism so that the device can stably fix the spherical cargo. The driving assembly drives two arc-shaped fixing blocks on different sides to fix the spherical cargo between the direction panels, so that the device is not easy to shake when transporting the cargo, reducing the wear caused by the device. At the same time, the two fixing plates can be moved by two electric telescopic rods, so that the two fixing plates can still fix ordinary cargo workpieces, thereby improving the applicability of the device and improving the stability during the lifting process.
[0013] 2. The utility model sets an adjustable lifting mechanism so that the device can prevent the lifting components from sliding up and down in the absence of external upward or downward thrust or pulling force. Since the thread lead angle of the trapezoidal screw is smaller than the static friction angle, the adjustment component can be self-locking, and there is no need to add a brake mechanism at the transmission input end, which greatly saves procurement costs, facilitates assembly and debugging by staff, and saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:
[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the structure of the adjustable lifting mechanism of the utility model;
[0017] Figure 3 It is a structural schematic diagram of the adjustment component of the utility model;
[0018] Figure 4 It is a structural schematic diagram of the fixing mechanism of the utility model;
[0019] Figure 5 It is a structural schematic diagram of the drive assembly of the utility model.
[0020] Reference numerals:
[0021] 1. Load-bearing base; 2. Adjustment and lifting mechanism; 201. Fixed base; 202. Slider; 203. Guide rail; 204. Lifting component; 205. Bearing seat; 206. Adjustment assembly; 2061. Block; 2062. Lifting trapezoidal screw; 2063. Sleeve; 2064. Worm gear; 2065. Worm; 2066. Protection box; 3. Fixing mechanism; 301. Square enclosure; 302. Arc-shaped fixing block; 303. Connecting rod; 304. Through groove; 305. Limiting groove; 306. Micro telescopic rod; 307. Fixing plate; 308. Driving assembly; 3081. Load-bearing plate; 3082. T-shaped connecting plate; 3083. Limiting plate; 3084. Round rod; 3085. Bidirectional threaded rod. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] When the existing lifting mechanism is used to transport some spherical goods, such goods will shake inside the enclosure during the lifting process, and the stability is poor. If the spherical goods continue to shake inside the enclosure, after working for a long time, the lifting mechanism will be greatly worn. The following describes the trapezoidal screw heavy-load lifting mechanism provided by some embodiments of the utility model in conjunction with the accompanying drawings.
[0024] Embodiment 1:
[0025] In order to solve the problem that the existing technology cannot stably fix the spherical cargo through the coaming, thus causing greater wear on the mechanism during transportation, Figure 1 , Figure 4 and Figure 5 As shown, a trapezoidal screw heavy-load lifting mechanism is proposed. The mechanism is provided with a load-bearing base 1 used as a whole load-bearing mechanism. The entire device is fixed by the load-bearing base 1. The top of the load-bearing base 1 is provided with an adjusting lifting mechanism 2 capable of self-locking the mechanism. The top of the adjusting lifting mechanism 2 is provided with a fixing mechanism 3. The fixing mechanism 3 is used to stably fix spherical cargo, and the applicability is high.
[0026] Since the spherical cargo workpiece cannot be stably fixed by the enclosure plate alone, a fixing mechanism 3 is provided to stably fix the spherical cargo workpiece to avoid shaking during transportation. The fixing mechanism 3 is provided with a bottom plate and arc-shaped fixing blocks 302 symmetrically distributed in pairs. The top of the bottom plate is fixedly connected with a square enclosure plate 301, and a connecting rod 303 is fixedly connected between the two arc-shaped fixing blocks 302 on the same side. A through groove 304 is provided on the two arc-shaped fixing blocks 302 on the same side, and limiting grooves 305 are provided on both sides of the two through grooves 304 on the same side. Through holes are provided on the opposite sides of the two connecting rods 303, and micro telescopic rods 306 are installed in the two through holes. The movable ends of the two micro telescopic rods 306 are fixedly connected with fixing plates 307. The two fixing plates 3 07 slide in the two limiting grooves 305 on the same side respectively. A driving assembly 308 for driving the two connecting rods 303 to move relative to each other is arranged on the side wall of the square enclosure 301. The two connecting rods 303 are relatively moved by the driving assembly 308, so that the two connecting rods 303 drive the two arc-shaped fixing blocks 302 located on the same side to move, so that the four arc-shaped fixing blocks 302 can clamp and fix the spherical cargo workpieces. The two fixing plates 307 are adjusted by the two miniature telescopic rods 306, so that the two fixing plates 307 slide in the through groove 304 and the limiting groove 305, so that the two fixing plates 307 can fix and clamp ordinary cargo workpieces, thereby improving the applicability of the device. The length of the movable end of the miniature telescopic rod 306 is greater than the vertical line length of the through groove 304.
[0027] In order to ensure that the arc-shaped fixing blocks 302 on both sides can fix cargo workpieces of different sizes, a driving assembly 308 is set up, and the two side walls of the square enclosure 301 are fixedly connected with load-bearing plates 3081, and the side walls of the square enclosure 301 are fixedly connected with limit plates 3083. The bottoms of the two connecting rods 303 are fixedly connected with T-shaped connecting plates 3082 that can slide on the limit plates 3083. The square enclosure 301 is located below the load-bearing plate 3081 and is fixedly connected with a round rod 3084. The square enclosure 301 is located below the load-bearing plate 3081 and is rotatably connected with A bidirectional threaded rod 3085, two T-shaped connecting plates 3082 are respectively threadedly connected to the two sections of the thread of the bidirectional threaded rod 3085, and the two T-shaped connecting plates 3082 are respectively slidably connected on the round rod 3084. A motor for driving the bidirectional threaded rod 3085 is installed on one side of the square enclosure 301. The cargo workpieces are placed through the two load-bearing plates 3081, and the bidirectional threaded rod 3085 is driven to rotate by the motor, so that the two T-shaped connecting plates 3082 slide on the limit plates 3083 and the round rod 3084, so that the device can fix cargo workpieces of different sizes.
[0028] Ball bearings are installed at the connection points between the two T-shaped connecting plates 3082 and the limiting plates 3083 , and the ball bearings can reduce the friction force on the two T-shaped connecting plates 3082 when sliding on the limiting plates 3083 .
[0029] Embodiment 2:
[0030] On the basis of Example 1, the technical solution proposed in Example 1 is used to solve the problem that when the lifting mechanism transports some spherical goods, such goods will move inside the enclosure and have poor stability. At the same time, the spherical goods will cause great wear to the lifting mechanism due to continuous movement. However, the existing lifting mechanism generally adds a brake mechanism at the transmission input end, or uses a motor with a brake to prevent the mechanism from sliding up and down in the absence of external upward or downward thrust or pull. This method increases the procurement cost and is not convenient for assembly and debugging.
[0031] In order to reduce the extra purchase cost caused by adding brake mechanism, combined with Figure 1 and Figure 2 as well as Figure 3As shown, an adjustable lifting mechanism 2 is provided, wherein a fixed base 201 is fixedly connected to a load-bearing base 1, two guide rails 203 are fixedly connected to one side of the fixed base 201, sliders 202 are slidably connected in the two guide rails 203, a lifting component 204 is fixedly connected to one side of the two sliders 202, two bearing seats 205 are fixedly connected to one side of the fixed base 201, an adjusting assembly 206 for adjusting the lifting of the lifting component 204 is provided between the two bearing seats 205, a stopper 2061 is fixedly connected to one side of the lifting component 204, a lifting trapezoidal lead screw 2062 is installed between the two bearing seats 205, a sleeve 2063 is threadedly connected to the lifting trapezoidal lead screw 2062, the stopper 2061 and the sleeve 2063 are fixedly connected, a worm gear 2064 is fixedly connected to the bottom end of the lifting trapezoidal lead screw 2062, a protective box 2066 is fixedly connected to one side of the bearing seat 205 close to the worm gear 2064, and a rotating A worm 2065 meshing with the worm wheel 2064 is connected, and a micro motor for driving the worm 2065 is installed on one side of the protection box 2066. The lifting component 204 is adjusted and moved by the adjustment component 206, and the worm 2065 is controlled to rotate by the micro motor, so that the worm wheel 2064 rotates, so that the position of the block 2061 is lifted and lowered through the sleeve 2063, so that the lifting component 204 slides on the two guide rails 203 through the two sliders 202, and the lifting trapezoidal screw 2062 can rotate stably through the two bearing seats 205. The self-locking function of the lifting trapezoidal screw 2062 is used to prevent the lifting component 204 from sliding up and down in the absence of external up and down thrust or tension, so that the device does not need to add a brake mechanism at the transmission input end, or use a motor with a brake, which greatly saves costs and is convenient for staff to assemble and debug the mechanism, greatly saving labor and time costs. The locking load limit of this mechanism is 400Kg.
[0032] 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.
[0033] 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 trapezoidal screw heavy-load lifting mechanism, comprising a load-bearing base (1) used as a whole of the bearing mechanism, characterized in that: The top of the load-bearing base (1) is provided with an adjusting and lifting mechanism (2) having a self-locking function, and the top of the adjusting and lifting mechanism (2) is provided with a fixing mechanism (3) for stably fixing the spherical cargo; The fixing mechanism (3) comprises a bottom plate and two symmetrically distributed arc-shaped fixing blocks (302); a square enclosure plate (301) is fixedly connected to the top of the bottom plate; a connecting rod (303) is fixedly connected between the two arc-shaped fixing blocks (302) on the same side; a through slot (304) is provided on the two arc-shaped fixing blocks (302) on the same side; limiting slots (305) are provided on both sides of the two through slots (304) on the same side; through holes are provided on the opposite sides of the two connecting rods (303); micro telescopic rods (306) are installed in the two through holes; the movable ends of the two micro telescopic rods (306) are fixedly connected to fixing plates (307); the two fixing plates (307) slide in the two limiting slots (305) on the same side respectively; and a driving component (308) for driving the two connecting rods (303) to move relative to each other is provided on the side wall of the square enclosure plate (301).
2. The trapezoidal screw heavy-load lifting mechanism according to claim 1, characterized in that: The driving assembly (308) comprises a load-bearing plate (3081) fixedly connected to two side walls of the square enclosure (301); the side walls of the square enclosure (301) are fixedly connected to a limiting plate (3083); the bottoms of the two connecting rods (303) are fixedly connected to a T-shaped connecting plate (3082) that can slide on the limiting plate (3083); the square enclosure (301) is located below the load-bearing plate (3081) and is fixedly connected to a round rod (3084); the square enclosure (301) is located below the load-bearing plate (3081) and is rotatably connected to a bidirectional threaded rod (3085); the two T-shaped connecting plates (3082) are respectively threadedly connected to two sections of the thread of the bidirectional threaded rod (3085); and the two T-shaped connecting plates (3082) are respectively slidably connected on the round rod (3084).
3. The trapezoidal screw heavy-load lifting mechanism according to claim 2, characterized in that: The adjustable lifting mechanism (2) comprises a fixed base (201) fixedly connected to the load-bearing base (1); two guide rails (203) are fixedly connected to one side of the fixed base (201); sliders (202) are slidably connected inside the two guide rails (203); a lifting component (204) is fixedly connected to one side of the two sliders (202); two bearing seats (205) are fixedly connected to one side of the fixed base (201); and an adjusting component (206) for adjusting the lifting of the lifting component (204) is arranged between the two bearing seats (205).
4. The trapezoidal screw heavy-load lifting mechanism according to claim 3, characterized in that: The adjustment assembly (206) comprises a stopper (2061) fixedly connected to one side of the lifting component (204); a lifting trapezoidal screw (2062) is installed between the two bearing seats (205); a sleeve (2063) is threadedly connected to the lifting trapezoidal screw (2062); the stopper (2061) and the sleeve (2063) are fixedly connected; a worm gear (2064) is fixedly connected to the bottom end of the lifting trapezoidal screw (2062); a protection box (2066) is fixedly connected to one side of the bearing seat (205) close to the worm gear (2064); a worm (2065) meshing with the worm gear (2064) is rotatably connected inside the protection box (2066).
5. The trapezoidal screw heavy-load lifting mechanism according to claim 4, characterized in that: A motor for driving a bidirectional threaded rod (3085) is installed on one side of the square enclosure (301), and a micro motor for driving a worm (2065) is installed on one side of the protection box (2066).
6. The trapezoidal screw heavy-load lifting mechanism according to claim 2, characterized in that: Ball bearings are installed at the connection points between the two T-shaped connecting plates (3082) and the limiting plates (3083).