Variable frequency lifting conveyor
By installing lifting and lowering components and protective components on the lifting conveyor, and utilizing electric telescopic rods and synchronous controllers, the problem of difficult disassembly during maintenance and repair of the lifting conveyor is solved, improving maintenance efficiency and ease of observation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI LANZHOU AUTOMATION TECH CO LTD
- Filing Date
- 2025-09-28
- Publication Date
- 2026-07-31
AI Technical Summary
When performing maintenance and repairs on the motors and transmission components of existing lifting conveyors, the removal of protective fences and protective shells is difficult, making it difficult for maintenance personnel to fully enter and affecting maintenance efficiency.
A variable frequency lifting conveyor was designed. By combining lifting and lowering components and protective components, and using an electric telescopic rod and a synchronous controller, the protective components are raised and lowered under the drive of the lifting and lowering components, exposing the maintenance and repair space, and facilitating observation and operation through a square window.
This significantly improves the efficiency of maintenance and repair of motors and transmission components without disassembling the protective components, and facilitates daily inspections and observations by maintenance personnel.
Smart Images

Figure CN224577947U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of conveyor technology, and in particular to a variable frequency lifting conveyor. Background Technology
[0002] In modern logistics warehousing, manufacturing production lines, and agricultural and sideline product processing, the lifting and conveying of goods is a key link in ensuring production efficiency and storage. Stacker cranes, due to their high stability, have gradually become the core equipment for lifting and conveying goods.
[0003] To enhance safety, existing lifting conveyors typically employ welded or bolted integral or semi-enclosed protective fences and shells at the frame to protect the motor and transmission components. While welding or bolting provides a certain level of structural strength and safety, disassembling the protective fences and shells during maintenance and repair of the motor and transmission components is difficult. Furthermore, the enclosed or semi-enclosed space restricts the access of maintenance personnel, and the limited space hinders the proper application of force or rotation of conventional maintenance tools, resulting in disassembly difficulties and low work efficiency.
[0004] Therefore, a variable frequency lifting conveyor is proposed. Utility Model Content
[0005] The purpose of this utility model is to provide a variable frequency lifting conveyor that can solve the problems of existing lifting conveyors where it is difficult to disassemble the protective fence and protective shell when maintaining and repairing the motor and transmission components. Furthermore, due to the influence of the integral or semi-enclosed space, it is difficult for maintenance personnel to fully enter during maintenance and repair. In addition, conventional maintenance tools cannot be used properly due to the limited space, resulting in disassembly difficulties and low work efficiency.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a variable frequency lifting conveyor, including a lifting frame, a motor fixedly connected to the left side of the lifting frame, a lifting assembly fixedly connected to the left side of the lifting frame, a protective assembly fixedly connected to one side of the lifting assembly, the lifting assembly including a U-shaped frame, the U-shaped frame fixedly connected to the left side of the lifting frame, a sliding groove provided on the front and rear sides of the U-shaped frame, the sliding groove penetrating the top of the U-shaped frame, a slider slidably connected to the inner wall of the sliding groove, a connecting groove provided on the right side of the inner wall of the U-shaped frame, the connecting groove communicating with the sliding groove, a connecting block slidably connected to the inner wall of the connecting groove, the connecting block being fixedly connected to the slider, and an electric telescopic rod fixedly connected to the bottom of the connecting block at the end away from the slider.
[0007] Preferably, the protective component includes two reinforcing connecting plates, which are fixedly connected to the side opposite to the slider. A U-shaped cover is fixedly connected to the left side of the reinforcing connecting plate, and a square slot is provided on the left side of the U-shaped cover.
[0008] Preferably, a strip is fixedly connected to the left side of the U-shaped cover. There are two strips in total, and each of the two strips has a snap-fit groove on its opposite side. A snap-fit plate is snapped into the inner wall of the snap-fit groove.
[0009] Preferably, a handle is fixedly connected to the left side of the card plate, and a rubber sleeve is provided on the surface of the handle.
[0010] Preferably, the bottom of the inner wall of the U-shaped frame is provided with an annular through hole, and the inner wall of the annular through hole is fixedly connected to the surface of the electric telescopic rod.
[0011] Preferably, a synchronization controller is fixedly connected to the bottom of the U-shaped frame, and the synchronization controller is used in conjunction with the electric telescopic rod.
[0012] Preferably, the top of the U-shaped frame is provided with a guide groove, and the guide groove is square.
[0013] Preferably, an auxiliary slot is provided on the right side of the U-shaped frame, and the auxiliary slot is engaged with the lifting frame.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. This application, by setting up a lifting and lowering assembly, can provide kinetic energy to the protective assembly after the lifting and lowering assembly is powered on and started. Through the cooperation and restraint between the structures in the lifting and lowering assembly, the protective assembly will not shake or detach when it is driven by the lifting and lowering assembly. Under the lifting and lowering of the lifting and lowering assembly, the protective assembly can be raised from the initial position, thereby greatly exposing the maintenance and repair space and avoiding the limitation of maintenance and repair space.
[0016] 2. This application sets up a motor and a protective component, so that the protective component can protect the motor. Furthermore, by pulling up the protective component, a square inspection window can be exposed, which facilitates maintenance personnel to perform daily inspections and observations of the internally protected motor through this window. Attached Figure Description
[0017] Figure 1 This is an overall structural diagram of the variable frequency lifting conveyor of this utility model;
[0018] Figure 2 This is a cross-sectional view of the U-shaped frame in this utility model;
[0019] Figure 3This is a schematic diagram of the cross-section of the lifting frame in this utility model;
[0020] Figure 4 This is a schematic diagram showing the connection between the landing assembly and the protective assembly in this utility model;
[0021] Figure 5 This is a schematic diagram of the protective component in this utility model;
[0022] Figure 6 This utility model Figure 4 Enlarged view of point A in the middle.
[0023] In the diagram, 1. Lifting frame; 2. Motor; 3. Lifting assembly; 301. U-shaped frame; 302. Slide groove; 303. Slider; 304. Connecting groove; 305. Connecting block; 306. Electric telescopic rod; 4. Protective assembly; 401. Reinforcing connecting plate; 402. U-shaped cover; 403. Square slot; 404. Strip block; 405. Snap-fit groove; 406. Snap plate; 5. Handle; 6. Rubber sleeve; 7. Annular through hole; 8. Synchronization controller; 9. Guide groove; 10. Auxiliary slot. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figure 1-6 The present invention provides the following technical solution:
[0026] A variable frequency lifting conveyor includes a lifting frame 1. A motor 2 is fixedly connected to the left side of the lifting frame 1. A lifting assembly 3 is fixedly connected to the left side of the lifting frame 1. A protective assembly 4 is fixedly connected to one side of the lifting assembly 3. The lifting assembly 3 includes a U-shaped frame 301, which is fixedly connected to the left side of the lifting frame 1. Slide grooves 302 are provided on the front and rear sides of the U-shaped frame 301. The slide grooves 302 penetrate the top of the U-shaped frame 301. A slider 303 is slidably connected to the inner wall of the slide grooves 302. A connecting groove 304 is provided on the right side of the inner wall of the U-shaped frame 301. The connecting groove 304 communicates with the slide grooves 302. A connecting block 305 is slidably connected to the inner wall of the connecting groove 304. The connecting block 305 is fixedly connected to the slider 303. An electric telescopic rod 306 is fixedly connected to the bottom of the connecting block 305 away from the slider 303.
[0027] In this embodiment: The lifting frame 1 provides a fixed position for the overall structure, and the motor 2 facilitates lifting and conveying. The U-shaped frame 301 provides a basic support for the lifting assembly 3. The sliding grooves 302 on the front and rear sides of the U-shaped frame 301 extend through its top, and the inner wall of the sliding groove 302 is slidably connected to the slider 303. This allows the protective assembly 4 associated with the slider 303 to rise and fall vertically along the sliding groove 302, exposing the motor 2 and the surrounding area of the transmission components without disassembling the protective assembly 4. Furthermore, the connecting groove 304 connects to the sliding groove 302. The connecting block 305 is slidably connected to the inner wall of the connecting groove 304, and the connecting block 305 is fixedly connected to the slider 303. This not only enhances the stability of the slider 303 sliding in the groove 302 and prevents the slider 303 from deviating or shaking, but also smoothly transmits the driving force of the electric telescopic rod 306 to the slider 303, ensuring that the lifting and lowering action of the protective component 4 is smooth. Moreover, the electric telescopic rod 306 fixedly connected to the bottom of the connecting block 305 away from the slider 303 provides power for the sliding of the slider 303. Through the setting of the protective component 4, the protective component 4 can protect the motor 2.
[0028] Specifically, such as Figure 4 , Figure 5 As shown, the protective component 4 includes a reinforcing connecting plate 401. There are two reinforcing connecting plates 401. The two reinforcing connecting plates 401 are fixedly connected to the side opposite to the slider 303. A U-shaped cover 402 is fixedly connected to the left side of the reinforcing connecting plate 401. A square slot 403 is opened on the left side of the U-shaped cover 402.
[0029] Specifically, such as Figure 5 As shown, a strip 404 is fixedly connected to the left side of the U-shaped cover 402. There are two strips 404 in total. Each of the two strips 404 has a snap-fit groove 405 on the opposite side. A snap-fit plate 406 is snapped into the inner wall of the snap-fit groove 405.
[0030] Specifically, such as Figure 4 , Figure 5 As shown, a handle 5 is fixedly connected to the left side of the card plate 406, and a rubber sleeve 6 is provided on the surface of the handle 5.
[0031] In this embodiment: by setting up reinforcing connecting plates 401, the two reinforcing connecting plates 401 are fixedly connected to the opposite side of the slider 303, which can effectively disperse the concentrated load of the protective component 4 itself and the external force on the slider 303, and avoid damage to the connection part due to excessive force. The U-shaped cover 402 fixedly connected to the left side of the reinforcing connecting plate 401 can form a surrounding protection for the motor 2 and the transmission component. It can not only effectively prevent large external debris from entering the inside of the component and causing wear, but also prevent personnel from accidentally touching the operating motor 2 or the transmission component. In addition, the square slot 403 can facilitate the use of the square slot 403. During equipment operation, maintenance personnel can observe the working status of motor 2 and transmission components. Furthermore, the two strips 404 fixedly connected to the left side of the U-shaped cover 402 have a snap-fit groove 405 on their opposite side that forms a detachable fit with the card plate 406. This allows the card plate 406 to be removed and placed without the aid of tools, thereby improving the efficiency of daily inspection and observation of motor 2. Secondly, the pull handle 5 provides a convenient force application point for removing and placing the card plate 406, avoiding the difficulty of applying force when maintenance personnel directly pry the card plate 406 with their hands, further improving the ease of operation.
[0032] Specifically, such as Figure 6 As shown, an annular through hole 7 is provided at the bottom of the inner wall of the U-shaped frame 301, and the inner wall of the annular through hole 7 is fixedly connected to the surface of the electric telescopic rod 306.
[0033] Specifically, such as Figure 3 , Figure 4 As shown, a synchronous controller 8 is fixedly connected to the bottom of the U-shaped frame 301, and the synchronous controller 8 is used in conjunction with the electric telescopic rod 306.
[0034] In this embodiment: by setting an annular through hole 7, a fixed space can be provided for the electric telescopic pole 306. By setting a synchronization controller 8, the telescopic speed and telescopic amount of the electric telescopic pole 306 can be precisely controlled, so as to avoid the protective component 4 from tilting or jamming due to the asynchronous operation of the electric telescopic pole 306.
[0035] Specifically, such as Figure 2 , Figure 3 , Figure 4 As shown, a guide groove 9 is provided at the top of the U-shaped frame 301, and the guide groove 9 is square.
[0036] Specifically, such as Figure 4 , Figure 6 As shown, an auxiliary slot 10 is provided on the right side of the U-shaped frame 301, and the auxiliary slot 10 is engaged with the lifting frame 1.
[0037] In this embodiment: by setting the guide groove 9, the guide groove 9 can reserve a position for the transmission wire of the lifting conveyor, so as to avoid the transmission wire being unable to be wound and unwound. By setting the auxiliary groove 10, the auxiliary groove 10 can be initially connected to the lifting frame 1, and then the U-shaped frame 301 is fixed on the lifting frame 1 by welding or bolt connection.
[0038] Working principle: When lifting and conveying goods, motor 2 is started, causing the drive drum to rotate. The steel wire inside the drive drum is then wound up or released, causing the lifting platform to move up and down. When the lifting platform reaches the designated height, the forks extend to remove goods from the pallet or place them into the shelf. During maintenance and repair of motor 2, the electric telescopic rod 306 is activated to extend, causing the connecting block 305 to slide upwards within the connecting groove 304. Since the connecting block 305 is fixedly connected to the slider 303, the slider 303 slides upwards synchronously with the connecting block 305 within the sliding groove 302. During the upward sliding of the slider 303, due to the connection between the slider 303 and the forks... The connection of the fixing plate 401 is completed, and the reinforcing plate 401 is also moved upward, driving the U-shaped cover 402 to rise synchronously. After the U-shaped cover 402 rises, the internally protected motor 2 and transmission components are gradually exposed. After rising to the designated height, the electric telescopic rod 306 is closed, and the maintenance personnel can manually perform maintenance and repair on the motor 2 and transmission components. During routine inspections, the clamping plate 406 can be removed from the clamping slot 405 by pulling the handle 5. Afterwards, the maintenance personnel can perform routine inspections and observations on the internally protected motor 2 and transmission components through the exposed square slot 403. After the inspection and observation, the clamping plate 406 can be re-clamped into the clamping slot 405.
[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A variable frequency lift conveyor comprising a lift frame (1), characterized in that: A motor (2) is fixedly connected to the left side of the lifting frame (1), and a lifting assembly (3) is fixedly connected to the left side of the lifting frame (1). A protective assembly (4) is fixedly connected to one side of the lifting assembly (3). The lifting assembly (3) includes a U-shaped frame (301), which is fixedly connected to the left side of the lifting frame (1). Slide grooves (302) are provided on both the front and rear sides of the U-shaped frame (301), and the slide grooves (302) penetrate the U-shaped frame (301). At the top of the slide (302), a slider (303) is slidably connected to the inner wall of the slide (302). A connecting groove (304) is provided on the right side of the inner wall of the U-shaped frame (301). The connecting groove (304) communicates with the slide (302). A connecting block (305) is slidably connected to the inner wall of the connecting groove (304). The connecting block (305) is fixedly connected to the slider (303). An electric telescopic rod (306) is fixedly connected to the bottom of the end of the connecting block (305) away from the slider (303).
2. A variable frequency drive and lift conveyor as in claim 1, wherein: The protective component (4) includes a reinforcing connecting plate (401), and there are two reinforcing connecting plates (401). The two reinforcing connecting plates (401) are fixedly connected to the side opposite to the slider (303). A U-shaped cover (402) is fixedly connected to the left side of the reinforcing connecting plate (401), and a square slot (403) is opened on the left side of the U-shaped cover (402).
3. A variable frequency drive and lift conveyor as in claim 2, wherein: A strip (404) is fixedly connected to the left side of the U-shaped cover (402). There are two strips (404). Each of the two strips (404) has a snap-fit groove (405) on its opposite side. A snap-fit plate (406) is snapped into the inner wall of the snap-fit groove (405).
4. A variable frequency drive and lift conveyor as in claim 3, wherein: A handle (5) is fixedly connected to the left side of the card plate (406), and a rubber sleeve (6) is provided on the surface of the handle (5).
5. A variable frequency drive and lift conveyor as in claim 1, wherein: The bottom of the inner wall of the U-shaped frame (301) is provided with an annular through hole (7), and the inner wall of the annular through hole (7) is fixedly connected to the surface of the electric telescopic rod (306).
6. A variable frequency drive-by-wire conveyor as set forth in claim 1, further comprising: The bottom of the U-shaped frame (301) is fixedly connected to a synchronization controller (8), which is used in conjunction with the electric telescopic rod (306).
7. A variable frequency lifting conveyor according to claim 1, characterized in that: The top of the U-shaped frame (301) is provided with a guide groove (9), which is square.
8. A variable frequency drive-by-wire conveyor as set forth in claim 1, further comprising: An auxiliary slot (10) is provided on the right side of the U-shaped frame (301), and the auxiliary slot (10) is engaged with the lifting frame (1).