Open top elevator

Abstract

The utility model discloses a kind of open top hoist, comprising: open top frame assembly, open top load component and open top lifting assembly.The utility model, overall installation efficiency is high, simple structure is maintained conveniently;And top is open type, it is favorable to reduce hoist overall height, can be perfectly compatible with various height size goods, effectively improve compatibility and space utilization rate;Lifting guide rail uses general T guide rail of elevator, reduces goods pallet swing error, improves equipment accuracy, reduces the load on each guide wheel, prolongs the service life of guide wheel;The lifting motor of open top lifting assembly is driven by open loop chain transmission cooperation counterweight as power source, lifting motor is vertically arranged in the both sides of the support welded pipe of open top load component, can effectively reduce motor rated power requirement;Fast insertion stand column top outer side is provided with maintenance platform, so that construction personnel can directly walk to the position of motor unit through the maintenance platform of side face, effectively improve operating safety.

Description

Technical Field

[0001] This utility model relates to the field of lifting and hoisting equipment technology, specifically to an open-top hoist. Background Technology

[0002] Traditional hoists are mostly enclosed frames, meaning the top is a closed structure. This is mainly because the power source components of traditional hoists, such as motors, transmission assemblies, and speed limiters, need to be installed at the top for lifting operations, which necessitates a top-sealed structural design for the hoist.

[0003] Existing traditional hoists use a closed structure, so the lifting efficiency needs to be improved by changing the power source efficiency, i.e., by replacing the drive motor with one with a more powerful one to increase the lifting speed. At this time, the size and weight of the drive motor will increase simultaneously, occupying more top space and increasing the difficulty of disassembly, assembly and maintenance. Moreover, the hoist's overall structure is top-heavy, which will significantly reduce the stability of the overall frame. At the same time, since the frame hoist must ensure that there is enough space to place the hoisting motor unit while aligning with the top layer of goods outlet, when the top layer of goods is very close to the ceiling, the motor drive unit cannot be installed due to its dependence on height space, thus failing to meet the efficiency requirements. Utility Model Content

[0004] The purpose of this utility model is to provide an open-top hoist to solve the above problems.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution, including: Open-top frame assembly, detachably mounted on the ground, provides support; Open-top loading assembly, detachably mounted on top of the open-top frame assembly, is used to carry cargo pallets; The top-opening lifting component is detachably installed on one side of the top-opening loading component and is used to drive the top-opening loading component. The open-top frame assembly includes a support frame, a support column is installed in the middle of the support frame, a lifting guide rail is provided on the outside of the support column, and a quick-connect column is installed on the outside of the lifting guide rail. The open-top loading assembly includes a support welded pipe, a drive motor is installed inside the support welded pipe, a drive spindle is installed at the output end of the drive motor, and a drive sprocket is installed at the end of the drive spindle. The open-top lifting assembly lifts the motor, and the output end of the drive motor is equipped with a lifting main shaft, with a lifting sprocket installed at the end of the lifting main shaft.

[0006] As a further description of the above technical solution, the support frame is detachably connected to the support column, lifting guide rail and quick-connect column through the base frame welding plate. Four sets of lifting guide rails are symmetrically arranged, and the cross-section of the lifting guide rail is T-shaped.

[0007] As a further description of the above technical solution, multiple sets of quick-connect columns are stacked and detachably connected, and lifting counterweight components are symmetrically arranged on the inner side of each quick-connect column.

[0008] As a further description of the above technical solution, the lifting counterweight assembly includes a counterweight frame, and multiple sets of counterweight plates are stacked inside the counterweight frame. The counterweight plates are detachably connected to the counterweight frame via counterweight tie rods, and a buffer is provided on the top of the counterweight frame.

[0009] As a further description of the above technical solution, a maintenance platform is provided on the outer side of the top of the quick-connect column, and a protective fence is provided on the outer side of the maintenance platform.

[0010] As a further description of the above technical solution, the supporting welded pipe is horizontally installed on the lifting guide rail via a guide wheel support plate. A guide wheel is installed on the inner side of the guide wheel support plate. The drive motor is installed on the sheet metal support seat via an anti-torsion screw on the outer side. A conveying support plate is symmetrically installed on the top of the sheet metal support seat. The bottom of the conveying support plate abuts against the supporting welded pipe via a flange support plate.

[0011] As a further description of the above technical solution, a conveying head block is installed on the inner end of the conveying support plate, and a support bar groove is installed on the top inner side of the conveying support plate.

[0012] As a further description of the above technical solution, a conveying support bar is installed inside the support bar groove, and a guide block is installed at the bottom inside the conveying support plate.

[0013] As a further description of the above technical solution, tensioning wheel sets are symmetrically arranged on both sides of the top of the drive sprocket, and the conveyor chain is wound around the drive sprocket, tensioning wheel sets, conveyor support bars and guide blocks to form a closed conveyor link.

[0014] As a further description of the above technical solution, the lifting motor is vertically mounted on the outside of the supporting welded pipe via a bearing support, and the lifting main shaft is horizontally mounted on the lifting beam via a bearing support.

[0015] The beneficial effects of this utility model are as follows: 1. The frame components of this utility model adopt quick-connect columns, which have high overall installation efficiency, simple structure and convenient maintenance; and the top is open, which helps to reduce the overall height of the elevator. The height of the top shelf can be ignored. No matter what height the top goods are at, as long as the top frame is designed to be flush with the bottom of the top goods pallet, it can perfectly accommodate goods of various heights and sizes, adapt to more warehouse space scenarios, and effectively improve compatibility and space utilization. 2. In this utility model, the lifting guide rail adopts the universal T-shaped guide rail for elevators, and each unit is equipped with 4 sets of guide rails. Compared with the traditional layout of 2 sets of guide rails, it can provide better stability and guidance for the cargo pallet, effectively reduce the shaking error of the cargo pallet, improve the accuracy of the equipment, and reduce the load on each guide wheel, thus extending the service life of the guide wheel. 3. In this utility model, the lifting motor of the open-top lifting component uses an open-loop chain drive in conjunction with a counterweight as the power source. It has high load capacity, long service life, and is maintenance-free for a long time. It can be used normally in harsh environments. Moreover, the lifting motor is vertically installed on both sides of the support welded pipe of the open-top loading component, which can effectively reduce the rated power requirement of the motor. It is simple, reliable, and has good equipment stability. 4. In this utility model, a maintenance platform is provided on the outer side of the top of the quick-connect column, which allows construction personnel to directly walk to the motor unit through the maintenance platform on the side. They can disassemble, install, maintain and repair the drive components such as the hoisting motor without having to climb to the middle of the hoist, which effectively improves the safety of operation. 5. In this utility model, the cargo pallet and the open-top loading component are integrated into a single assembly, resulting in a more compact structure. This allows for pre-installation and debugging in the factory, effectively reducing the workload of subsequent assembly and the delivery cycle.

[0016] To more clearly illustrate the structural features and functions of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the top-opening hoist of this utility model; Figure 2 This is a top view of the open-top hoist of this utility model; Figure 3 yes Figure 1 Enlarged view of point A in the middle; Figure 4 yes Figure 1 Schematic diagram of the structure of the center-opening top-loading assembly; Figure 5 yes Figure 1 Side view of the center-opening top-loading assembly Figure 1 ; Figure 6 yes Figure 1Side view of the center-opening top-loading assembly Figure 2 ; Figure 7 yes Figure 1 Schematic diagram of the structure of the center-opening lifting component; Figure 8 yes Figure 1 Side view of the centrally located, open-top lifting component; Figure 9 yes Figure 1 A schematic diagram of the structure of the lifting counterweight component; Figure 10 yes Figure 1 Side view of the lifting counterweight component.

[0018] Figure label: 1. Open-top frame assembly; 101. Support frame; 102. Support column; 103. Lifting guide rail; 104. Quick-connect column; 105. Base frame welded plate; 2. Open-top loading assembly; 201. Support welded pipe; 202. Drive motor; 203. Drive spindle; 204. Drive sprocket; 205. Guide wheel support plate; 206. Guide wheel; 207. Anti-torsion screw; 208. Sheet metal support; 209. Conveyor support plate; 210. Flange support plate; 211. Conveyor... 1. Head block; 212. Support bar groove; 213. Conveyor support bar; 214. Guide block; 215. Tensioner wheel assembly; 3. Open-top lifting assembly; 301. Lifting motor; 302. Lifting spindle; 303. Lifting sprocket; 304. Bearing support seat; 305. Lifting crossbeam; 4. Cargo pallet; 5. Lifting counterweight assembly; 501. Counterweight frame; 502. Counterweight bar; 503. Counterweight tie rod; 504. Buffer; 6. Maintenance platform; 601. Protective fence. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0020] like Figures 1-10 As shown, in one embodiment, an open-top hoist includes: an open-top frame assembly 1, an open-top loading assembly 2, and an open-top lifting assembly 3; Among them, the open-top frame component 1 is fixed to the preset installation position on the ground through matching connectors. The installation position can be flexibly adjusted according to the warehouse layout, while providing a stable support foundation for the entire equipment and ensuring the structural stability during operation. For example, the open-top frame assembly 1 includes a support frame 101, which is welded from high-strength steel and has excellent resistance to deformation and load-bearing capacity; a support column 102 is installed in the middle of the support frame 101, which is made of thickened profile to further enhance the overall rigidity of the frame. Correspondingly, a lifting guide rail 103 is fixedly installed on the outside of the support column 102 along the vertical direction to provide a guiding path for lifting the load component; a quick-connect column 104 is also installed on the outside of the lifting guide rail 103 to help reinforce the frame structure and expand the support range.

[0021] Specifically, the support frame 101 is detachably assembled with the support column 102, lifting guide rail 103 and quick-connect column 104 by bolting through the preset base plate welding plate 105. The connection nodes are reinforced to ensure connection strength and facilitate disassembly, maintenance or component replacement in the future.

[0022] Understandably, the frame components adopt a quick-connect column design, with quick-connect structures at the column joints. Assembly can be completed without welding or complex tools, effectively improving overall installation efficiency. The structural design is simple and compact, and later maintenance only requires targeted disassembly of faulty parts, resulting in low maintenance costs and convenient operation. Furthermore, the open top breaks the height limitations of traditional enclosed-top hoists, effectively reducing the overall height of the equipment. This design can directly ignore the height differences of the top layer of warehouse racks. Regardless of the stacking height of the top layer of goods, simply adjusting the top frame of the equipment to be flush with the bottom of the top pallet 4 achieves perfect adaptation, completely solving the compatibility problem caused by inconsistent goods heights in traditional hoists. It can adapt to various warehouse space scenarios such as flat warehouses and high-bay rack warehouses, significantly improving the equipment's compatibility with different goods heights and the utilization rate of warehouse space.

[0023] In some embodiments, the lifting guide rails 103 adopt a symmetrical layout, with four sets evenly distributed on the outside of the support column 102, and the guide rail cross-section is designed as a T-shaped structure.

[0024] Understandably, the lifting guide rail 103 uses a standard T-shaped guide rail commonly used in elevators. Its guide surface is precision-machined, resulting in high flatness and excellent wear resistance, making it suitable for high-frequency industrial applications. Each device is equipped with a layout of 4 guide rails, which, compared to the traditional 2-rail design commonly used in hoists, can limit and guide the cargo pallet 4 from four directions, providing more comprehensive support and constraint for the cargo pallet 4. This effectively reduces the swaying error of the cargo pallet 4 and significantly improves the operating accuracy of the equipment. At the same time, the uniform force design of the four guide rails can evenly distribute the weight of the cargo and the running load to each guide wheel, effectively reducing the load on a single guide wheel, significantly reducing the wear rate of the guide wheel, extending the service life of the guide wheel, and reducing the frequency of equipment maintenance and replacement.

[0025] In some embodiments, multiple quick-connect columns 104 are stacked and detachably connected in sequence. The quick-connect columns 104 are symmetrically provided with lifting counterweight components 5 on their inner sides to balance the weight of the load-bearing components and reduce the load on the lifting motor 301.

[0026] Specifically, the counterweight component 5 includes a lightweight counterweight frame 501. The inner side of the counterweight frame 501 adopts a layered structure with multiple sets of counterweight plates 502 stacked on it. The counterweight plates 502 are made of high-density cast iron, which effectively controls the space occupied while ensuring the counterweight effect. The counterweight plates 502 are detachably connected to the counterweight frame 501 through high-strength counterweight tie rods 503. The number of counterweight plates 502 can be increased or decreased according to the load requirements of the goods, so as to accurately match the counterweight balance requirements under different working conditions. In some embodiments, a buffer 504 is also provided on the top of the counterweight frame 501. The buffer 504 is made of elastic material and can effectively absorb impact energy when the load assembly rises to the top or falls to the bottom, so as to avoid rigid collision between the counterweight frame 501 and other parts of the equipment, protect the equipment structure and reduce cargo shaking.

[0027] In some embodiments, a maintenance platform 6 is provided on the outer side of the top of the quick-connect column 104. The maintenance platform 6 is made of anti-slip patterned steel plate with anti-slip texture, which can effectively prevent construction personnel from slipping during operation. A protective fence 601 is provided around the outside of the maintenance platform 6. The height of the fence meets industrial safety standards, and the fence is fully enclosed with no obvious gaps, which can provide comprehensive safety protection for construction personnel.

[0028] Understandably, this allows construction workers to directly access the motor unit via the side maintenance platform 6, enabling them to safely and conveniently disassemble, inspect, and maintain components such as the hoisting motor 301 and sprockets without having to climb to the middle of the hoist. This reduces the safety risks of working at heights, shortens maintenance time, and effectively improves the safety and efficiency of equipment maintenance.

[0029] Please continue reading. Figures 1-10 In this embodiment, the open-top loading assembly 2 is detachably installed on the top of the open-top frame assembly 1 and is used to carry the cargo pallet 4. For example, the open-top load-bearing assembly 2 includes a support welded pipe 201, which is made of seamless steel pipe. The pipe wall thickness is optimized by mechanical calculation, combining lightweight and high strength characteristics, and can reduce its own weight while ensuring load-bearing capacity. A drive motor 202 is installed inside the support welded pipe 201. The drive motor 202 is a high-precision variable frequency motor with a wide speed range and smooth operation. A drive spindle 203 is installed at the output end of the drive motor 202, and a drive sprocket 204 is installed at the end of the drive spindle 203. Furthermore, tensioning wheel sets 215 are symmetrically arranged on both sides of the top of the drive sprocket 204. The tensioning wheel sets 215 are equipped with an automatic adjustment mechanism, which can automatically adjust the tension according to the tightness of the chain, so as to prevent the chain from loosening or falling off due to long-term use and ensure the stability and reliability of the transmission. The conveyor chain adopts a high-strength wear-resistant chain, which is wound together by the drive sprocket 204, tensioning wheel sets 215, conveyor support bar 213 and guide block 214 to form a closed conveyor link. The chain runs with a precise trajectory and high transmission efficiency, which can realize the smooth conveying of the cargo pallet 4. There is no obvious impact during start-up and stop, effectively protecting the goods from damage.

[0030] Specifically, the support welded pipe 201 is horizontally installed on the lifting guide rail 103 via the guide wheel support plate 205. The guide wheel support plate 205 is made of thickened steel plate and stamped and welded to the support welded pipe 201, resulting in high connection strength. Furthermore, a guide wheel 206 is installed on the inner side of the guide wheel support plate 205. The guide wheel 206 is made of wear-resistant rubber material, with a smooth surface and low coefficient of friction, which can reduce frictional wear with the lifting guide rail 103. Correspondingly, the drive motor 202 is mounted on the sheet metal support 208 via an anti-torsion screw 207. The anti-torsion screw 207 can effectively counteract the torque generated during motor operation, prevent the motor installation position from shifting, and ensure transmission accuracy. A conveying support plate 209 is symmetrically installed on the top of the sheet metal support. The bottom of the conveying support plate 209 abuts against the supporting welded pipe 201 via a flange support plate 210. The conveying support plate 209 adopts an integral molding structure with strong load-bearing capacity. The bottom of the conveying support plate 209 abuts tightly against the supporting welded pipe 201 via the flange support plate 210, further enhancing the support stability and preventing deformation during conveying.

[0031] It should be noted in detail that a conveyor head block 211 is installed on the inner end of the conveyor support plate 209. The conveyor head block 211 adopts an arc transition design, which can guide the cargo pallet 4 smoothly into the conveyor chain and avoid jamming. A support bar groove 212 is installed on the top inner side of the conveyor support plate 209. A conveyor support bar 213 is fixedly installed inside the support bar groove 212. The conveyor support bar 213 can be made of wear-resistant polyethylene material, which has good self-lubricating properties, can reduce the frictional resistance of the conveyor chain during operation, and extend the service life of the chain. A guide block 214 is installed on the bottom inner side of the conveyor support plate 209. The guide block 214 is set along the conveying direction and can limit the conveyor chain to prevent the chain from running off-center during operation.

[0032] Understandably, the integrated assembly of cargo pallet 4 and open-top loading component 2 results in a more compact structure. The production workshop can complete the assembly, linkage testing, and performance calibration of each component before shipment, promptly identify and resolve potential problems, and eliminate the need for complex on-site assembly and debugging work. This effectively shortens the on-site installation cycle and the time to production after shipment, thereby improving delivery efficiency.

[0033] Please continue reading. Figures 1-10 In this embodiment, the top-opening lifting component 3 is detachably installed on one side of the top-opening loading component 2 and is used to drive the top-opening loading component 2; For example, the lifting motor 301 of the open-top lifting assembly 3 has overload protection, dustproof and waterproof features, and is suitable for complex operating environments such as warehouses; the output end of the drive motor 202 is connected to the lifting spindle 302 through a reduction mechanism. The lifting spindle 302 is heat-treated, has high strength and good toughness, and the end of the lifting spindle 302 is equipped with a lifting sprocket 303, which transmits power to the load assembly through a chain.

[0034] Specifically, the lifting motor 301 is vertically mounted on the outside of the supporting welded pipe 201 via a bearing support 304. The bearing support 304 is made of cast iron and is equipped with high-precision bearings to reduce the frictional resistance of the lifting spindle 302 during operation. The lifting spindle 302 is horizontally mounted on the lifting beam 305 via the bearing support 304. The lifting beam 305 is rigidly connected to the supporting welded pipe 201, providing stable support for the lifting spindle 302 and ensuring coaxiality during transmission.

[0035] Understandably, the lifting motor 301, powered by an open-loop chain drive and a counterweight, features strong load-bearing capacity, high transmission efficiency, and good wear resistance. It can meet the lifting needs of heavy loads and has a long service life, requiring no frequent maintenance during long-term use. It can maintain stable operation in harsh environments such as high temperature, dust, and humidity, and has excellent protective performance. Furthermore, the lifting motor 301 is vertically installed on both sides of the support welded pipe 201 of the open-top load assembly 2, which can effectively reduce the rated power requirement of the motor, making the equipment operation simpler and more reliable, and significantly improving overall stability.

[0036] Through the above technical solutions, this application can perfectly accommodate goods of various heights and sizes, adapt to more warehouse space scenarios, and effectively improve compatibility and space utilization; it can effectively reduce the shaking error of the goods pallet 4, improve equipment accuracy, and reduce the load on each guide wheel, extending the service life of the guide wheel; it has high load capacity, long service life, long-term maintenance-free operation, can be used normally in harsh environments, and can effectively reduce the rated power requirement of the motor, making it simple, reliable, and with excellent equipment stability.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An open-top hoist, characterized in that, include: An open-top frame assembly (1) is detachably mounted on the ground to provide support; Open-top loading assembly (2) is detachably mounted on top of open-top frame assembly (1) for carrying cargo pallets (4). The top-opening lifting component (3) is detachably installed on one side of the top-opening loading component (2) and is used to drive the top-opening loading component (2). The open-top frame assembly (1) includes a support frame (101), a support column (102) is installed in the middle of the support frame (101), a lifting guide rail (103) is provided on the outside of the support column (102), and a quick-connect column (104) is installed on the outside of the lifting guide rail (103). The open-top loading assembly (2) includes a support welded pipe (201), a drive motor (202) is installed inside the support welded pipe (201), a drive spindle (203) is installed at the output end of the drive motor (202), and a drive sprocket (204) is installed at the end of the drive spindle (203). The top-opening lifting assembly (3) has a lifting motor (301), the output end of the drive motor (202) is equipped with a lifting spindle (302), and the end of the lifting spindle (302) is equipped with a lifting sprocket (303).

2. The open-top hoist according to claim 1, characterized in that, The support frame (101) is detachably connected to the support column (102), lifting guide rail (103) and quick-connect column (104) via the base frame welding plate (105). The lifting guide rail (103) is symmetrically arranged in four sets, and the cross section of the lifting guide rail (103) is T-shaped.

3. The open-top hoist according to claim 2, characterized in that, Multiple sets of quick-connect columns (104) are stacked and detachably connected in sequence, and lifting counterweight components (5) are symmetrically arranged on the inner side of the quick-connect columns (104).

4. The open-top hoist according to claim 3, characterized in that, The lifting counterweight assembly (5) includes a counterweight frame (501), and multiple sets of counterweight plates (502) are stacked inside the counterweight frame (501). The counterweight plates (502) are detachably connected to the counterweight frame (501) via counterweight pull rods (503). A buffer (504) is provided on the top of the counterweight frame (501).

5. The open-top hoist according to claim 1, characterized in that, A maintenance platform (6) is provided on the outer side of the top of the quick-connect column (104), and a protective fence (601) is provided on the outer side of the maintenance platform (6).

6. The open-top hoist according to claim 1, characterized in that, The supporting welded pipe (201) is horizontally installed on the lifting guide rail (103) via the guide wheel support plate (205). The guide wheel support plate (205) is equipped with a guide wheel (206) on its inner side. The drive motor (202) is installed on the sheet metal support base (208) via the anti-torsion screw (207) on its outer side. The sheet metal support base is symmetrically equipped with a conveying support plate (209) on its top. The bottom of the conveying support plate (209) abuts against the supporting welded pipe (201) via a flange support plate (210).

7. The open-top hoist according to claim 6, characterized in that, A conveying head block (211) is installed on the inner end of the conveying support plate (209), and a support bar groove (212) is installed on the top inner side of the conveying support plate (209).

8. The open-top hoist according to claim 7, characterized in that, A conveying support bar (213) is installed inside the support bar groove (212), and a guide block (214) is installed at the bottom inside the conveying support plate (209).

9. The open-top hoist according to claim 1, characterized in that, The drive sprocket (204) is symmetrically provided with tensioning wheel groups (215) on both sides of the top. The conveyor chain is wound around the drive sprocket (204), tensioning wheel groups (215), conveyor support bar (213) and guide block (214) to form a closed conveyor link.

10. The open-top hoist according to claim 1, characterized in that, The lifting motor (301) is vertically mounted on the outside of the supporting welded pipe (201) via a bearing support (304), and the lifting main shaft (302) is horizontally mounted on the lifting crossbeam (305) via a bearing support (304).

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