Multifunctional electric lifting trolley

Abstract

The utility model provides a multifunctional electric lifting trolley which comprises a main body frame, a lifting frame and a supporting ring, a plurality of lead screws acting independently and motors matched with the lead screws are installed on the periphery of the main body frame, the lead screws are connected with the lifting frame through knuckle bearings, and the motors drive the main body frame to slide up and down along the lead screws; the top of the lifting frame is provided with a plurality of sets of annularly-distributed rolling bearings, the bottom of the supporting ring is provided with a groove connected with the rolling bearings in a matched mode, and the supporting ring is installed on the rolling bearings and can rotate by 360 degrees along the rolling bearings. The device is simple in structure, auxiliary loading and unloading can be conveniently carried out when the device is replaced, damage to the device in the carrying process can be reduced, the replacement efficiency is improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the field of industrial equipment transportation and installation, and particularly relates to a multifunctional electric lifting trolley. Background Art

[0002] In the process of industrial production, the periodic replacement of consumables is an essential part. In this process, there are often a large number of loading and unloading operations of other equipment. Taking the process of crystal bar production as an example, the crucible needs to be replaced every 400 hours, and in this process, auxiliary equipment such as a deflector tube and a thermal shield also need to be loaded and unloaded. A high-quality loading and unloading tool is crucial for reducing equipment damage, improving replacement efficiency, and reducing labor intensity.

[0003] Problems existing in the prior art:

[0004] Currently, there are various types of mobile trolleys for loading and unloading auxiliary equipment. According to their driving power, they can be mainly classified into the following three categories: First, the manual lifting type. This type of trolley realizes lifting through mechanisms such as pulley blocks, steel wires, and hand-cranked gears, but has problems such as slow lifting speed and inconvenient operation. Second, the hydraulic or pneumatic lifting type. Although this type of trolley can realize lifting, it is often limited by factors such as lifting height, heavy body weight, and large volume, resulting in inflexible use. Finally, the electric lifting type. The above three types of trolleys all adopt a structure with items placed in the front and trolley body equipment installed in the rear, relying on counterweights to balance the weight of the items. Therefore, the trolley body is heavy, the movement is not flexible, and functions such as leveling and tilting alignment are lacking. Content of the Utility Model

[0005] The utility model provides a multifunctional electric lifting trolley to solve the problems of the prior art. The structure is simple, which is convenient for auxiliary loading and unloading during equipment replacement, can reduce equipment damage during handling, improve replacement efficiency, and reduce the labor intensity of workers.

[0006] A multifunctional electric lifting trolley, characterized in that it includes a main body frame, a lifting frame, and a support ring. A number of independently operating screw rods and motors matching the screw rods are installed around the main body frame. The screw rods are connected to the lifting frame through spherical plain bearings, and the motors drive the main body frame to slide up and down along the screw rods; a number of groups of annularly distributed rolling bearings are installed on the top of the lifting frame, and grooves matching the rolling bearings are opened at the bottom of the support ring. The support ring is installed on the rolling bearings and can rotate 360 degrees along the rolling bearings.

[0007] For further improvement, the height difference in the vertical direction of a number of spherical plain bearings connecting the lifting frame to the screw rods is less than or equal to 15 mm, that is, the relative positions of each screw rod and the lifting frame are allowed to have a deviation of 15 mm in the vertical direction, so as to perform leveling when the ground is uneven and to align a single moving single screw rod with the installation component.

[0008] In a further improvement, the support ring includes an outer support ring and an inner support ring that are movably connected. The outer support ring is connected to a rolling bearing at the top of the lifting frame, and the inner support ring is embedded in the inner wall of the outer support ring.

[0009] Further improvements include an outer support ring with an inner diameter of 925mm, suitable for hot-screen displays larger than 40 inches, ensuring stable load-bearing capacity. The inner support ring has an inner diameter of 815mm, specifically designed for 36-inch hot-screen displays; its 815mm inner diameter also provides a nesting function, allowing for easy detachment from the trolley body.

[0010] As a further improvement, the lead screw is equipped with buffer rubber blocks at its upper and lower limit positions to protect the position limits.

[0011] In a further improvement, the top of the lifting frame is equipped with a support ring anti-rotation device, and the support ring is equipped with a rotating handle, allowing the support ring to be rotated manually for flexible adjustment.

[0012] Further improvements have been made to the lifting frame, which has a maximum main load of 100KG and a mechanical stroke of 730mm, to meet different height requirements.

[0013] As a further improvement, the main frame is equipped with wheels at the bottom and handrails on the sides.

[0014] As a further improvement, an electrical control box and a battery box are installed on the main frame.

[0015] The beneficial effects of this utility model are as follows:

[0016] Each lead screw is independently controlled, ensuring precise lifting control and facilitating the replacement of disassembled equipment.

[0017] The support ring adopts a double-ring design, with two different sizes to accommodate the lifting needs of objects of different sizes.

[0018] The entire vehicle structure is made of high-strength aluminum alloy to ensure stability and durability, while four swivel wheels ensure easy and flexible movement. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is the front view of the present utility model;

[0021] Figure 2This is a side view of the present invention;

[0022] Figure 3 This is a top view of the present invention;

[0023] Figure 4 This is a perspective view of the present utility model. 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 scope of protection of the present utility model.

[0025] One specific embodiment of this utility model is as follows: Figure 1-4 As shown, in terms of structural design, both the main frame and the lifting frame of the trolley are made of high-strength aluminum alloy welded components. After stress relief treatment, each installation part is precisely machined to ensure installation accuracy. Four sets of independently operable lead screws are installed at the four corners of the main frame. These lead screws are connected to the lifting frame via spherical bearings. A 15 mm vertical deviation is allowed between each lead screw and the lifting frame to facilitate leveling on uneven ground and to allow for single-acting alignment of individual lead screws with the installed components. Buffer blocks are provided at the upper and lower limit positions of the lead screws to protect them from positional limits. The spherical bearings feature a plastic self-lubricating design, requiring no maintenance. At the top of the lifting frame, 16 sets of rolling bearings are installed in a circular arrangement, engaging with the grooves of the support ring to allow the support ring to rotate 360 ​​degrees. An anti-rotation device for the support ring is installed on the handrail side of the lifting frame to prevent rotation during transportation. The inner diameter of the support ring is 40 inches, with a 36-inch support ring embedded within it, allowing for quick loading and unloading to accommodate items of different sizes.

[0026] The main mechanical components in this embodiment include:

[0027] Inner support ring 1: Designed specifically for 36-inch hot screens, with an inner diameter of 815mm, it has a nesting function and can be easily detached from the car body.

[0028] Outer support ring 2: Suitable for hot screens larger than 40 inches, with an inner diameter of 925mm to ensure stable load bearing.

[0029] Lifting Frame 3: Designed with strong load-bearing capacity, the maximum main load can reach 100KG, and the mechanical stroke can reach 730mm, meeting different height requirements.

[0030] Battery Box 4: Designed specifically for battery placement and protection, ensuring battery safety and stability.

[0031] Handrail 5: Serves as a support component for the movement of the trolley, ensuring safety during operation.

[0032] Six wheels: The trolley is equipped with four wheels to ensure stable movement and easy operation.

[0033] Electrical control box 7: As the electrical control box of the trolley, it realizes the effective management and control of electrical components.

[0034] Main frame 8: As the main structure of the car, it supports and connects various components to ensure overall stability.

[0035] Support ring anti-rotation device 9: The support ring can be rotated manually and is stopped by the anti-rotation device, so as to achieve flexible adjustment.

[0036] Motor 10: Used to control the lifting function of the bracket, ensuring the smoothness and precision of the lifting process.

[0037] Support ring rotation handle 11: Facilitates manual operation of the support ring rotation and provides flexible adjustment methods.

[0038] Rolling bearing 12: Sixteen sets of rolling bearings are installed at the top of the lifting frame, arranged in a circle, and cooperate with the groove of the support ring, so that the support ring can rotate 360 ​​degrees.

[0039] Angle sensor 13: Located at the top of the lifting frame, it monitors the rotation angle of the support ring.

[0040] Spherical bearing 14: The lead screw is connected to the lifting frame through a spherical bearing.

[0041] Buffer rubber block 15: Buffer rubber blocks are provided at the upper and lower limit positions of the lead screw to protect the position limits.

[0042] Limit switch 16: A limit switch for matching is provided at the buffer rubber block.

[0043] The gap between the hinge pin holes connecting the trolley lifting frame and the fixed frame must be controlled between 5-8mm to meet the requirements of trolley leveling and tilting.

[0044] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on its differences from other embodiments. In particular, for the device embodiments, the above descriptions are merely preferred embodiments of this utility model. Since they are fundamentally similar to the method embodiments, the descriptions are relatively simple; relevant parts can be referred to the descriptions of the method embodiments. The above descriptions are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this utility model, without departing from the principle of this utility model, should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A multi-functional electric lifting trolley, characterized in that: The system includes a main frame, a lifting frame, and a support ring. Several independently actuating lead screws and motors are installed around the main frame. The lead screws are connected to the lifting frame through spherical bearings, and the motors drive the main frame to slide up and down along the lead screws. Several sets of annularly distributed rolling bearings are installed on the top of the lifting frame. The bottom of the support ring has grooves that mate with the rolling bearings. The support ring is mounted on the rolling bearings and can rotate 360 ​​degrees along the rolling bearings.

2. The multifunctional electric lifting trolley according to claim 1, characterized in that: The height difference between the several joint bearings connected to the lead screw around the lifting frame in the vertical direction is less than or equal to 15mm.

3. The multifunctional electric lifting trolley according to claim 1, characterized in that: The support ring includes an outer support ring and an inner support ring that are movably connected. The outer support ring is connected to a rolling bearing at the top of the lifting frame, and the inner support ring is embedded in the inner wall of the outer support ring.

4. The multifunctional electric lifting trolley according to claim 3, characterized in that: The outer support ring has an inner diameter of 925 mm, and the inner support ring has an inner diameter of 815 mm.

5. The multifunctional electric lifting trolley according to claim 1, characterized in that: The lead screw is equipped with buffer rubber blocks at its upper and lower limit positions.

6. The multifunctional electric lifting trolley according to claim 1, characterized in that: The top of the lifting frame is equipped with a support ring anti-rotation device, and the support ring is equipped with a rotation handle.

7. The multifunctional electric lifting trolley according to claim 1, characterized in that: The maximum main load of the lifting frame is 100KG, and the mechanical stroke is 730mm.

8. The multifunctional electric lifting trolley according to claim 1, characterized in that: The main frame is equipped with wheels at the bottom and handrails on the sides.

9. The multifunctional electric lifting trolley according to claim 1, characterized in that: The main frame is equipped with an electrical control box and a battery box.

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