Lifting device

Abstract

The lifting device comprises a horizontally-arranged supporting seat and a rack perpendicular to the supporting seat, the rack comprises a first vertical plate and a second vertical plate which are arranged back to back, and the first vertical plate is provided with a pair of parallel lifting guide rails; a tray is movably arranged at the bottom of one side of the first vertical plate, is connected with a driving mechanism and can slide up and down along the lifting guide rail under the driving of the driving mechanism; the tray is further provided with a pair of clamps, and the pair of clamps is suitable for fixing the power module to be installed. In this way, the power module can be conveniently clamped and moved up and down, and therefore the power module can be conveniently installed.

Description

Technical Field

[0001] This utility model relates to the production and processing of electronic and electrical products, and more specifically, to a lifting device. Background Technology

[0002] When installing or testing large frequency converters or inverters, power modules need to be installed into cabinets or test systems. Currently, the usual practice is for personnel with overhead crane licenses to assist with the installation. During the installation process, the top of the cabinet or test system needs to be opened to install the power modules from the top space downwards. If there is insufficient top space, an electric forklift is required for assisted installation.

[0003] The existing operating methods described above are very laborious, inefficient, and pose safety hazards. Utility Model Content

[0004] In view of this, the present invention proposes a lifting device to at least solve the above problems.

[0005] According to an embodiment of the present invention, a lifting device includes a horizontally arranged support base and a frame arranged perpendicular to the support base. The frame includes a first vertical plate and a second vertical plate arranged opposite to each other. A pair of parallel lifting guide rails are provided on the first vertical plate. A tray is movably provided on the bottom of one side of the first vertical plate. The tray is configured to be connected to a drive mechanism and can slide up and down along the lifting guide rails under the drive of the drive mechanism. A pair of clamps are also provided on the tray, which are adapted to fix the power module to be installed.

[0006] Furthermore, the tray includes a base disposed at the bottom, and a first side plate, a second side plate, and a third side plate disposed perpendicular to the base. The first side plate is parallel to the first vertical plate of the frame, and the second side plate and the third side plate are respectively disposed opposite to each other on the horizontal sides of the base.

[0007] Furthermore, a clamp guide rail is provided on the base along the horizontal direction, and the pair of clamps are movably mounted on the clamp guide rail.

[0008] Furthermore, it also includes at least one pair of locking elements adapted to secure the clamp to the clamp guide rail.

[0009] Furthermore, a pair of limiting posts are provided on the clamp guide rail.

[0010] Furthermore, multiple rows of rollers are horizontally arranged on the base of the tray.

[0011] Furthermore, the drive mechanism is mounted on the frame and includes a motor and a lead screw driven by the motor. The lead screw is arranged along the second vertical plate of the frame, and the bottom of the lead screw is connected to and mounted on the tray.

[0012] Furthermore, a pallet fixing plate is installed on the first side plate of the pallet, and the pallet is connected to the lead screw through the pallet fixing plate.

[0013] Furthermore, the lifting device also includes a control box, which is installed on the top of the frame, and the motor is installed in the control box.

[0014] Furthermore, the support base is equipped with auxiliary wheels.

[0015] According to one embodiment of the lifting device of this utility model, a horizontally arranged support base and a vertically arranged frame are provided. A pair of lifting guide rails are provided on the first vertical plate of the frame, and a tray is movably installed at the bottom of the frame. A pair of clamps for fixing the power module tray are provided on the tray. The clamps are connected to a drive mechanism, so that the power module can be driven by the drive mechanism to slide up and down along the lifting guide rails of the frame to install the power module into the cabinet. In addition, the tray of the lifting device of this utility model embodiment is also provided with clamp guide rails to facilitate the horizontal sliding of the clamps, so as to meet the fixing of power modules of different specifications. The tray is also provided with rollers to facilitate the operator to push the power module into the clamps. Attached Figure Description

[0016] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can more clearly understand the above and other features and advantages of the present invention, in which:

[0017] Figure 1 This is a schematic diagram of the overall structure of a lifting device according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the pallet in the lifting device according to another embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of a pair of clamps mounted on a clamp guide rail in a lifting device according to another embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure on the frame of the lifting device according to another embodiment of the present invention.

[0021] The reference numerals in the attached figures are as follows:

[0022] 1. Support base 2. Frame 3. Lifting guide rail

[0023] 4 pallets, 5 clamps, 11 first side plates

[0024] 12 Second side plate 13 Third side plate 21 Fixture guide rail

[0025] 31 Locking component 35 Limiting pin 40 Roller

[0026] 50 motor, 60 lead screw, 70 slider

[0027] 81 Rolling bearing; 83 Motor mounting plate; 85 Pallet mounting plate

[0028] 90 control box Detailed Implementation

[0029] To make the objectives, technical solutions and advantages of this utility model clearer, the following embodiments will be used to further describe this utility model in detail.

[0030] Figure 1 This is a schematic diagram of the overall structure of a lifting device according to an embodiment of the present invention;

[0031] like Figure 1 As shown, the lifting device according to an embodiment of the present invention includes a horizontally arranged support base 1 and a frame 2 arranged perpendicular to the support base 1. The frame 2 includes a first vertical plate and a second vertical plate arranged opposite to each other. A pair of parallel lifting guide rails 3 are arranged on the first vertical plate. A tray is movably arranged at the bottom of one side of the first vertical plate. The tray is configured to be connected to a drive mechanism and can slide up and down along the lifting guide rails 3 under the drive of the drive mechanism. A pair of clamps are also arranged on the tray. The pair of clamps are suitable for fixing the power module to be installed.

[0032] The power module referred to in this utility model, for example, is an IGBT power module used in medium-to-high power converters. Preferably, the support base 1 consists of two brackets fixed to the horizontal sides of the bottom of the vertical frame 2. The first vertical plate and the second vertical plate can be two separate vertical plates or a single integrated vertical plate.

[0033] Preferably, the bottom of the support base 1 is equipped with pulleys to facilitate the movement of the entire lifting device.

[0034] Preferably, handrails are installed on both sides of the frame 2 to facilitate its movement. The frame 2 and the support base 1 can be connected by bolts or other connecting parts.

[0035] The lifting device based on this embodiment uses a horizontally arranged support base 1 and a vertically arranged frame 2. A pair of lifting guide rails 3 are arranged on the first vertical plate of the frame 2, and a tray 4 is movably installed at the bottom of the tray. A pair of clamps 5 for fixing the power module tray are arranged on the tray 4. The clamps 5 are connected to the drive mechanism, so that the power module can be driven to slide up and down along the lifting guide rails 3 of the frame 2 under the drive of the drive mechanism, so as to load the power module into the cabinet.

[0036] Figure 2 This is a schematic diagram of the structure of a tray according to an embodiment of the present invention;

[0037] Combination Figure 1 and Figure 2 As shown, the tray 4 includes a base at the bottom and a first side plate 11, a second side plate 12 and a third side plate 13 arranged perpendicular to the base. The first side plate 11 is parallel to the first vertical plate of the frame 2, and the second side plate 12 and the third side plate 13 are respectively arranged opposite to each other on the horizontal sides of the base.

[0038] Specifically, the tray 4 can be movably placed into or removed from the empty space between the two support bases 1. The positions on the first side plate 11 of the tray corresponding to the two lifting guide rails 3 can be connected to the sliders 70 mounted on the lifting guide rails 3 via bolts or other connecting parts, allowing the tray to move up and down along the lifting guide rails 3. The structure of the sliders 70, how the sliders 70 are fixed to the lifting guide rails 3, and how the tray is fixed to the sliders 70 are well known to those skilled in the art and require no inventive effort; therefore, they will not be described in detail here.

[0039] Furthermore, a clamp guide rail 21 is provided on the base along the horizontal direction, and the pair of clamps 5 are movably mounted on the clamp guide rail 21.

[0040] Figure 3 This is a schematic diagram of a pair of clamps mounted on a clamp guide rail according to another embodiment of the present invention; as shown. Figure 3 As shown, the bottom of the clamp 5 is provided with an extension plate extending horizontally outward, and the clamp guide rail 21 is provided with a slider 70 that can slide along the clamp guide rail 21. The extension plate and the slider 70 are connected by fasteners such as bolts.

[0041] like Figure 3As shown, it also includes at least one pair of locking members 31, which are adapted to fix the clamp on the clamp guide rail 21. Specifically, the locking member 31 includes a slider 70 that is slidably mounted on the clamp guide rail 21. The top of the slider 70 has an opening for the locking bolt to pass through. When the clamp moves to the preset position, the locking bolt is tightened to the bottom, so that its bottom abuts against the clamp guide rail 21, thereby completing the fixation of the clamp.

[0042] like Figure 3 As shown, it also includes a pair of limiting posts 35, which are respectively installed on the outside of the slider 70 of the fixed clamp. In this way, when the clamp moves, its extension plate will not collide with the second side plate 12 and the third side plate 13 of the tray and affect its service life.

[0043] Furthermore, the base of the tray is horizontally provided with multiple rows of rollers 40. This allows the power module to be easily pushed between a pair of clamps for holding.

[0044] Furthermore, the drive mechanism is mounted on the frame 2 and includes a motor and a lead screw 60 driven by the motor. The lead screw 60 is arranged along the second vertical plate of the frame 2, and the tray is connected and installed at the bottom of the lead screw 60.

[0045] Figure 4 This is a schematic diagram of the structure on the frame of a lifting device according to another embodiment of the present invention. Figure 4 As shown, the drive mechanism is located on one side of the second vertical plate (not shown in the figure), including a motor 50 located at the top. The motor 50 is fixed to the frame 2 by a motor fixing plate 83, and the output shaft end of the motor 50 is connected to the top of the lead screw 60 through a rolling bearing 81.

[0046] Furthermore, an L-shaped tray fixing plate 85 is connected to the bottom of the lead screw 60. The tray fixing plate 85 is connected to the first side plate 11 of the tray 4 by bolts or other fasteners. Another rolling bearing 81 is also provided below the tray fixing plate 85 on the lead screw 60. Through this structure, the lead screw 60 rotates under the drive of the motor 50, thereby driving the tray fixing plate 85 to move up and down. The up and down movement of the tray fixing plate 85 in turn drives the tray 4 to move up and down, thereby realizing the up and down movement of the power module on the tray 4.

[0047] Furthermore, such as Figure 1As shown, the lifting device also includes a control box 90, which is mounted on top of the frame 2, and the motor is installed inside the control box 90. This structure is aesthetically pleasing and saves space. Meanwhile, various related control circuits are housed inside the control box 90, including large displacement control circuits and small displacement control circuits. The operation buttons for these control circuits are uniformly located on the surface of the control box 90 for easy operation by the operator.

[0048] As can be seen from the above, the lifting device according to the embodiment of this utility model enables simple and quick installation of the power module, saving manpower and facilitating operation.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., 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 lifting device for assisting in the installation of a power module, characterised in that, The lifting device comprises a horizontally arranged support seat (1) and a rack (2) arranged perpendicularly to the support seat (1), the rack (2) comprising a first vertical plate and a second vertical plate arranged oppositely, and a pair of parallel lifting rails (3) arranged on the first vertical plate; a tray (4) is movably arranged at the bottom of one side of the first vertical plate, and the tray (4) is arranged to be connected with a driving mechanism and can slide up and down along the lifting rails (3) under the driving of the driving mechanism; a pair of clamps (5) are further arranged on the tray (4), and the pair of clamps (5) are suitable for fixing the power module to be installed.

2. The lift device of claim 1, wherein, The tray (4) comprises a base arranged at the bottom, and a first side plate (11), a second side plate (12) and a third side plate (13) arranged perpendicularly to the base, the first side plate (11) being parallel to the first vertical plate of the rack (2), and the second side plate (12) and the third side plate (13) being oppositely arranged at the horizontal two sides of the base respectively.

3. The lift device of claim 2, wherein, A clamp rail (21) is arranged on the base in the horizontal direction, and the pair of clamps are movably mounted on the clamp rail (21).

4. The lift device of claim 3, wherein, At least a pair of locking members (31) are further included, and the pair of locking members (31) are suitable for fixing the clamps on the clamp rail (21).

5. The lift device of claim 3, wherein, A pair of limiting columns (35) are arranged on the clamp rail (21).

6. Lift according to any of claims 2 to 5, characterized in that A plurality of rows of rollers (40) are horizontally arranged on the base of the tray (4).

7. Lift according to any of claims 2 to 5, characterized in that The driving mechanism is mounted on the rack (2) and comprises a motor (50) and a lead screw (60) driven by the motor (50), the lead screw (60) being arranged along the second vertical plate of the rack (2), and the tray (4) being connected and mounted at the bottom of the lead screw (60).

8. The lift device of claim 7, wherein, A tray fixing plate (85) is mounted on the first side plate (11) of the tray, and the tray is connected to the lead screw (60) through the tray fixing plate (85).

9. The lift device of claim 7, wherein, The lifting device further comprises a control box (90), the control box (90) being mounted on the top of the rack (2), and the motor (50) being mounted in the control box (90).

10. The lift device of claim 1, wherein, An auxiliary wheel is arranged on the support seat (1).

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