Stack installation device

Abstract

The present invention discloses a stack installation device, which includes a base, a lifting mechanism arranged on the base, a bearing plate arranged on the lifting mechanism, and a plurality of rolling members arranged on the bearing plate. The lifting mechanism is used to lift and lower the bearing plate in the vertical direction, and the rolling members are used to support the stack and allow the stack to translate along the inside of the stack working station thereon. The stack installation device of the present invention can make the installation of the stack relatively convenient, time-saving and labor-saving.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel cells, and particularly relates to a stack installation device. Background Art

[0002] As is well known, due to the heavy weight of the stack, the "crane + manual" method is generally used to install the stack. Specifically, refer to Figure 1 , a lifting lug bolt 2 is provided on the stack 1, a rope 3 passes through the lifting lug bolt 2 and is connected to a lifting device 4, so as to lift the stack 1 upward through the lifting device 4. After lifting the stack 1, limited by the cage structure of the stack station 5, when the A surface of the stack 1 enters the stack station 5, the lifting rope 3 close to the A surface needs to be untied, and then it is pushed in manually.

[0003] In addition, since the distance d between the top of the stack 1 and the stack station 5 is very small, a forklift cannot be used to push the stack 1 into the stack station 5. Therefore, the stack 1 can only be lifted manually and pushed into the stack station 5.

[0004] However, during the manual pushing process, hard friction will occur between the B surface of the stack 1 and the C surface of the stack station 5, resulting in damage to the protective paint on the B surface of the stack 1, thereby causing wear and rust of the stack 1. At the same time, due to the heavy weight of the stack 1, the stack 1 is not easy to install, and it is time-consuming and laborious. Summary of the Invention

[0005] The main purpose of the present invention is to propose a stack installation device to solve the technical problems of the existing stack installation method, which is laborious to install and easy to wear the protective paint.

[0006] To solve the above technical problems, the present invention proposes a stack installation device, which includes a base, a lifting mechanism provided on the base, a bearing plate provided on the lifting mechanism, and a plurality of rolling members provided on the bearing plate. The lifting mechanism is used to lift and lower the bearing plate in the vertical direction, and the rolling members are used to support the stack and allow the stack to translate along the inside of the stack station on them.

[0007] Preferably, the lifting mechanism includes two sets of scissor lift devices that are separated front and back in the pushing direction of the stack. The scissor lift device includes a lower base, a pair of upper brackets, a pair of lower brackets, and an upper base. One end of the upper bracket is hinged to the upper base, the other end is hinged to one end of the lower bracket, the other end of the lower bracket is hinged to the lower base, and the hinge between the upper bracket and the lower bracket is connected by a lead screw. The bearing plate is installed on the upper base.

[0008] Preferably, the lead screws of the two sets of scissor lift devices are connected into an integral structure, and a crank is provided at one end of the lead screw; alternatively, the lead screws of the two sets of scissor lift devices are connected into an integral structure, and the lifting mechanism further includes a first motor provided on the base, and an output shaft of the first motor is connected to the lead screw through a transmission assembly.

[0009] Preferably, the lifting mechanism includes a hydraulic pump, a hydraulic cylinder and a scissor support frame. The top end of the scissor support frame is connected to the bearing plate, the bottom end of the scissor support is connected to the base, and the hydraulic rod of the hydraulic cylinder is connected to the scissor support frame to drive the lifting of the scissor support frame through the telescopic movement of the hydraulic rod.

[0010] Preferably, the stack mounting device further includes a traction mechanism provided on the base. The traction mechanism includes a second motor, a lead screw connected to the output shaft of the second motor, and a pulling part connected to the nut of the lead screw. The pulling part is used to drive the stack to translate inside the stack station along the rolling elements.

[0011] Preferably, the cross-section of the base is U-shaped, which includes a bottom and two flanging parts oppositely arranged and extending upward along the bottom. The two flanging parts and the bottom form an accommodating cavity for accommodating the lifting mechanism.

[0012] Preferably, the bearing plate is configured as an I-shaped structure, which includes a first bearing part, a second bearing part and a connecting part for connecting the first bearing part and the second bearing part. The connecting part is connected to the lifting mechanism.

[0013] Preferably, the rolling elements include a fixed seat and balls rolling on the fixed seat, or the rolling elements are one-way wheels arranged along the translation direction of the stack.

[0014] The beneficial effects of the embodiments of the present invention are as follows: The stack bearing plate is lifted to a preset height through the lifting mechanism so that the bearing plate is higher than the bottom surface of the stack station. Then, the stack is lifted by a lifting device and placed on the bearing plate. Then, by using the rolling elements provided on the bearing plate, the stack can be easily pushed into the station, and the position of the stack can be adjusted at any time so that the bolt mounting positions on the stack are aligned with the fixing holes on the bottom surface. Using the stack mounting device proposed by the present invention can make the installation of the stack more convenient and time-saving and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the existing stack installation;

[0016] Figure 2 is a schematic structural diagram of an embodiment of the stack mounting device of the present invention;

[0017] Figure 3 Structural diagrams of the left scissors assembly and the right scissors assembly of the stack mounting device of the present invention;

[0018] Figure 4 Structural diagrams of the lifting mechanism and the bearing plate of the stack mounting device of the present invention;

[0019] Figure 5 Structural diagram of the rolling member of the stack mounting device of the invention. Detailed implementation manners

[0020] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0021] To solve the above technical problems, the present invention proposes a stack mounting device. Refer to Figure 2 , the stack mounting device includes a base 10, a lifting mechanism 20 provided on the base 10, a bearing plate 30 provided on the lifting mechanism 20, and a plurality of rolling members 40 provided on the bearing plate 30. The lifting mechanism 20 is used to lift and lower the bearing plate 30 in the vertical direction, and the rolling members 40 are used to support the stack 1 and supply the stack 1 to translate inside the stack working station 5 thereon.

[0022] Combined with Figure 1 , when installing the stack, the stack mounting device involved in the present invention will be placed directly below the stack working station 5, and the bearing plate 30 will be lifted above the C surface of the stack working station 5 through the lifting mechanism 20; after the lifting equipment 4 hoists the stack 1, the stack 1 will be placed on the bearing plate 30 to translate the stack 1 along the inside of the stack working station 5 through the rolling members 40. Since the stack 1 and the bearing plate 30 do not directly contact, but indirectly contact through the rolling members 40 provided on the bearing plate 30, therefore, the friction received by the bottom of the stack 1 is rolling friction. It should be noted that due to the limited height of the stack working station 5, during the process of using the lifting mechanism 20 to lift the bearing plate 30, it is necessary to combine the height of the stack 1 to control the rising height of the bearing plate 30 to avoid the problem that the stack 1 cannot enter the stack working station 5.

[0023] Under the same conditions, the rolling friction force (the frictional resistance suffered by the fuel cell stack 1 when translating inwardly on the rolling member 40) is much smaller than the sliding friction force (the frictional resistance suffered by the fuel cell stack 1 when translating inwardly on the C surface of the fuel cell stack station 5). Therefore, by installing the fuel cell stack with the fuel cell stack installation device involved in the present invention, compared with the existing fuel cell stack installation methods, it can greatly reduce the wear of the fuel cell stack, avoid the fuel cell stack from rusting, and at the same time, it can also make the installation of the fuel cell stack more convenient and easier, and reduce the labor cost.

[0024] The working principle of the fuel cell stack installation device involved in the present invention is as follows: First, place the fuel cell stack installation device below the fuel cell stack station 5; after placing it stably, lift the carrier plate 30 to a preset height by the lifting mechanism 20 so as to be located above the C surface of the fuel cell stack station 5; then, lift the fuel cell stack by the lifting equipment 4 and place a part of it on the carrier plate 30; then, manually push the fuel cell stack 1 to translate inwardly on the rolling member 40. During the translation process, the position of the fuel cell stack 1 within the fuel cell stack station 5 can be adjusted at any time so that the bolt installation position of the fuel cell stack 1 is aligned with the installation hole; secondly, lower the carrier plate 30 to the initial position by the lifting mechanism 20, that is, below the fuel cell stack station 5 and lower than the C surface of the fuel cell stack station 5. At this time, the B surface of the fuel cell stack 1 contacts the C surface of the fuel cell stack station 5; finally, fix the fuel cell stack 1 within the fuel cell stack station 5 with bolts.

[0025] In the above embodiment, the lifting mechanism 20 involved in the present invention includes two sets of scissor lifting devices that are separated front and back in the pushing direction of the fuel cell stack. The scissor lifting device includes a lower base, a pair of upper brackets 21, a pair of lower brackets 22, and an upper base 23. One end of the upper bracket 21 is hinged to the upper base 23, the other end is hinged to one end of the lower bracket 22, the other end of the lower bracket 22 is hinged to the lower base, and the hinge between the upper bracket 21 and the lower bracket 22 is connected by a lead screw 24. The carrier plate 30 is installed on the upper base 23. The upper bracket 21 and the lower bracket 22 are connected by a hinge, and the hinge is connected by a lead screw 24. Driven by an external power, the lead screw 24 drives the hinge between the upper bracket 21 and the lower bracket 22 to make a reciprocating linear motion in the pushing direction of the fuel cell stack, so as to drive the telescopic arm composed of the upper bracket 21 and the lower bracket 22 to expand and contract through the movement of the hinge, thereby driving the carrier plate 30 to lift and lower in the vertical direction. Specifically, when the two hinges approach each other in the pushing direction of the fuel cell stack, the carrier plate 30 will be lifted to a preset height in the vertical direction, and when the two hinges move away from each other in the pushing direction of the fuel cell stack, the carrier plate 30 will be lowered to a preset height in the vertical direction.

[0026] Considering the manufacturing and usage costs of the stack installation device, a crank 25 can be provided at one end of the lead screw 24. The user can drive the rotation of the lead screw 24 simply by rotating the crank 25. By the forward and reverse rotation of the crank 25, the lifting function of the stack installation device is realized. The crank 25 is in an L-shaped structure, and it can be connected to the screw rod of the lead screw 24 by welding, or the lead screw 24 with the crank 25 can be specially customized during manufacturing to meet the requirements of the stack installation device involved in the present invention.

[0027] In addition, considering the convenience of using the stack installation device, the lead screw 24 can be driven to rotate by a motor without manual driving of the lead screw 24. Specifically, in an embodiment, the stack installation device involved in the present invention further includes a first motor provided on the base 10, and the output shaft of the first motor is connected to the lead screw 24 through a transmission assembly. When the stack installation device is placed at the bottom of the stack station 5, the first motor is started to drive the rotation of the lead screw 24 through the first motor, thereby driving the lifting of the carrier plate 30 in the vertical direction.

[0028] In a preferred embodiment, the lifting mechanism 20 involved in the present invention can also adopt a technical solution including a "hydraulic pump + hydraulic cylinder + scissor support frame" to realize the lifting of the carrier plate 30 in the vertical direction. Specifically, the top of the scissor support frame is connected to the carrier plate 30, the bottom of the scissor support frame is connected to the base 10, and the hydraulic rod of the hydraulic cylinder is connected to the scissor support frame to drive the lifting of the scissor support frame through the expansion and contraction of the hydraulic cylinder. The main function of the hydraulic pump is to provide hydraulic pressure to drive the elongation of the hydraulic rod of the hydraulic cylinder, thereby expanding the scissor support frame and causing the carrier plate 30 to rise in the vertical direction. Conversely, the hydraulic rod of the hydraulic cylinder contracts, and the scissor support frame folds, causing the carrier plate 30 to descend in the vertical direction. The main function of the hydraulic cylinder is to drive the expansion and folding of the scissor support frame through the expansion and contraction of the hydraulic rod.

[0029] In another preferred embodiment, the stack installation device involved in the present invention further includes a traction mechanism provided on the base 10. The traction mechanism includes a second motor, a lead screw connected to the output shaft of the second motor, and a pulling part connected to the nut of the lead screw. The pulling part is used to drive the stack to translate along the inside of the stack station on the rolling members 40. In this embodiment, the pulling part is connected to the lifting lug bolt provided on the stack 1, and the lifting lug bolt is provided on the A surface of the stack 1, so that the stack 1 can be automatically translated into the stack station 5 under the traction of the pulling part. Specifically, when a part of the stack 1 is located on the carrier plate 30, the pulling part is connected to the lifting lug bolt, and then, the second motor rotates, and the pulling part is driven to move along the inside of the stack station 5 through the lead screw, thereby realizing the automatic transfer of the stack 1 to save labor costs.

[0030] See Figure 5, the rolling member 40 involved in the present invention includes a fixed seat 41 and balls 42 arranged on the fixed seat 41. It can be understood that the balls 42 can rotate 360° within the fixed seat 41. After the fuel cell stack 1 is placed on the bearing plate 30, an external force is applied to the fuel cell stack 1, and the balls 42 will rotate under the action of the external force, thereby driving the fuel cell stack 1 to move inward into the fuel cell stack station 5. Alternatively, the rolling member 40 involved in the present invention can also be a one-way wheel arranged on the bearing plate 30, that is, the rolling member 40 can only rotate in a specific direction. Therefore, the rotation direction of the one-way wheel is the same as the moving direction of the fuel cell stack 1.

[0031] In yet another preferred embodiment, the cross-section of the base 10 involved in the present invention is U-shaped, which includes a bottom 11 and two flanging portions 12 arranged opposite to each other and extending upward along the bottom 11. The two flanging portions 12 and the bottom 11 form a receiving cavity for receiving the lifting mechanism 20. In this embodiment, referring to Figure 1 , during the descending process of the lifting mechanism 20, it will fold and contract. The U-shaped base 10 involved in the present invention can receive it in its receiving cavity, which can save manufacturing costs and is also convenient for placement.

[0032] Referring to Figure 4 , the bearing plate 30 involved in the present invention is configured as an I-shaped structure, which includes a first bearing portion 31, a second bearing portion 32, and a connecting portion 33 for connecting the first bearing portion 31 and the second bearing portion 32. The connecting portion 33 is connected to the lifting mechanism 20. In this embodiment, at least two rolling members 40 are arranged at intervals on both the first bearing portion 31 and the second bearing portion 32. By supporting the bottom of the fuel cell stack 1 with the first bearing portion 31 and the second bearing portion 32 arranged in parallel and at intervals, and combined with manpower and the rolling members 40, the fuel cell stack 1 can be easily pushed into the fuel cell stack station 5, thereby completing the installation of the fuel cell stack.

[0033] The above are only partial or preferred embodiments of the present invention. Whether in terms of text or drawings, the protection scope of the present invention cannot be limited thereby. All equivalent structural transformations made by using the content of the specification and drawings of the present invention under the overall concept of the present invention, or directly / indirectly applied in other related technical fields are included in the protection scope of the present invention.

Claims

1. A stack installation device, characterized in that, It includes a base, a lifting mechanism arranged on the base, a bearing plate arranged on the lifting mechanism, and a plurality of rolling members arranged on the bearing plate. The lifting mechanism is used to lift and lower the bearing plate in the vertical direction, and the rolling members are used to support the fuel cell stack and allow the fuel cell stack to translate inside the fuel cell stack station thereon. The lifting mechanism includes two sets of scissor lift devices separated front and rear in the fuel cell stack pushing direction. The scissor lift device includes a lower base, a pair of upper brackets, a pair of lower brackets, and an upper base. One end of the upper bracket is hinged to the upper base, the other end is hinged to one end of the lower bracket, the other end of the lower bracket is hinged to the lower base, and the hinge between the upper bracket and the lower bracket is connected by a lead screw. The bearing plate is installed on the upper base. The lead screws of the two sets of scissor lift devices are connected into an integral structure, and a crank is arranged at one end of the lead screw; or, the lead screws of the two sets of scissor lift devices are connected into an integral structure, and the lifting mechanism further includes a first motor arranged on the base, and the output shaft of the first motor is connected to the lead screw through a transmission component.

2. The fuel cell stack mounting device according to claim 1, characterized in that The lifting mechanism includes a hydraulic pump, a hydraulic cylinder, and a scissor support frame. The top of the scissor support frame is connected to the bearing plate, the bottom of the scissor support frame is connected to the base, and the hydraulic rod of the hydraulic cylinder is connected to the scissor support frame to drive the lifting and lowering of the scissor support frame through the telescopic movement of the hydraulic rod.

3. The fuel cell stack mounting device according to claim 1, characterized in that, It further includes a traction mechanism arranged on the base. The traction mechanism includes a second motor, a lead screw connected to the output shaft of the second motor, and a pulling part connected to the nut of the lead screw. The pulling part is used to drive the fuel cell stack to translate inside the fuel cell stack station on the rolling members.

4. The fuel cell stack mounting device according to claim 1, wherein, The cross-section of the base is U-shaped, which includes a bottom and two flanging parts arranged oppositely and extending upward along the bottom. The two flanging parts and the bottom form a receiving cavity for receiving the lifting mechanism.

5. The fuel cell stack mounting device according to claim 1, characterized in that, The bearing plate is configured as an I-shaped structure, which includes a first bearing part, a second bearing part, and a connecting part for connecting the first bearing part and the second bearing part. The connecting part is connected to the lifting mechanism.

6. The fuel cell stack mounting device according to claim 1, wherein The rolling member includes a fixed seat and a ball rolling on the fixed seat, or the rolling member is a one-way wheel arranged along the translation direction of the fuel cell stack.

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