Stack push-in and positioning device

Abstract

The utility model relates to the technical field of liquid flow battery discloses a kind of electric pile push and positioning device.The device positions electric pile in electric pile frame center by sliding track and slider;The height of pulley is adjusted by the change of adjusting rod position, and it is convenient to push out device to take out.For the problems such as possible shaking, inaccurate positioning etc. when electric pile is pushed into electric pile frame, the device can maintain electric pile to enter electric pile frame and be positioned in it steadily and accurately, effectively improve electric pile installation efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of flow battery technology, specifically relating to a battery stack pushing and positioning device. Background Technology

[0002] As a large-scale energy storage technology, vanadium redox flow batteries typically have a large volume and weight in their core component, the fuel cell stack. During assembly, the assembled stack needs to be smoothly and accurately pushed into a fixed stack rack. Tilting or shifting can easily lead to uneven stress on the stack rack, affecting its strength and lifespan; in severe cases, it can cause the stack to shake, thus impacting its operating efficiency. Currently, common operation methods often rely on forklifts for direct placement or simple sliding rail tools, which have the following drawbacks: 1. Poor adaptability: Traditional operating machinery such as forklifts have certain height limitations, making it difficult to push the electric stack into the high-positioned stacker rack. The height of the stacker rack may have manufacturing tolerances or specification differences, making it difficult for fixed-height pushing tools such as slide rails to adapt, which can easily lead to the electric stack getting stuck or mispositioning.

[0003] 2. Cumbersome operation steps: The slide rail tool usually requires bolt fixation, and the disassembly and assembly process is cumbersome, which is not conducive to the centralized replacement of fuel cell stacks in large energy storage power stations.

[0004] 3. Safety hazards exist: The manual operation is arduous, and if the push-in process is deviated, it is easy to cause the fuel cell stack to tip over or be bumped, damaging the expensive fuel cell stack components.

[0005] 4. Inefficiency: Inaccurate positioning requires repeated adjustments, which reduces production efficiency.

[0006] 5. Inaccurate positioning: It cannot be installed in the center of the stack rack, which can easily cause uneven stress.

[0007] Therefore, there is an urgent need for a specialized device that can flexibly adjust the height and ensure a smooth and precise pushing process. Utility Model Content

[0008] The purpose of this application is to overcome the shortcomings of the prior art. This application provides a device that is highly adjustable, easy to operate, and can safely and efficiently complete the pushing and positioning of the fuel cell stack.

[0009] This application provides an electric fuel cell stack pushing and positioning device, including a stack frame, a stack pushing bracket, an electric fuel cell stack, and a pushing device. The stack frame and the stack pushing bracket are threadedly connected by a rigid connector. The pushing device can slide along the tracks of the stack frame and the stack pushing bracket. The electric fuel cell stack and the pushing device are connected by a detachable fixed connection.

[0010] By adopting the above technical solution, the fuel cell stack can be pushed into the fuel cell stack frame. The fuel cell stack pushing device is detachable and its position can be adjusted according to different fuel cell stack frame heights.

[0011] Furthermore, the fuel cell stack rack includes an inlet support beam, a fuel cell stack support beam, and a sliding track. The inlet support beam includes positioning holes. The inlet support beam is located below the fuel cell stack support beam and is welded to it. The sliding track is located inside the fuel cell stack support beam and is lower than the support beam, facilitating the entry and exit of the push-in device.

[0012] By adopting the above technical solution, the pusher can slide freely within the stack frame.

[0013] Furthermore, the fuel cell stack insertion support includes a fuel cell stack insertion support sliding track, a fuel cell stack insertion support fixing support, and fastening components. The fuel cell stack insertion support sliding track includes positioning holes for the fixing support. The fuel cell stack insertion support sliding track and the fuel cell stack frame sliding track combine to form a complete sliding track. The fuel cell stack entry support fixing support at the front end of the fuel cell stack insertion support sliding track is fixed to the fuel cell stack inlet support beam by the fastening components, and its position is constrained by the positioning holes of the support beam.

[0014] By adopting the above technical solutions, the fuel cell stack push-in support and the fuel cell stack frame can be disassembled, which facilitates maintenance.

[0015] Furthermore, the fuel cell stack includes a front-end plate and a rear-end plate. The front-end plate includes front-end plate positioning holes. The rear-end plate includes rear-end plate positioning holes.

[0016] By adopting the above technical solutions, the fuel cell stack can be positioned at the center of the fuel cell stack frame.

[0017] Furthermore, the pushing device includes a bottom frame side beam, a bottom frame cross beam, a slide rail positioning beam, a front slider, a rear slider, an adjusting rod shaft connecting plate, an adjusting rod fixing pin, a front pulley shaft, a rear pulley shaft, a pulley connecting shaft, a front pulley movable pin, a rear pulley movable pin, a front pulley connecting plate, a rear pulley connecting plate, a front pulley, a rear pulley, a front pulley shaft fixing bolt, a rear pulley shaft fixing bolt, a front pulley fixing pin, and a rear pulley fixing pin. The slide rail positioning beam includes a slide rail positioning hole and a slider sliding track. The front slider includes a slider fixing hole and a slider pin. The bottom frame side beam and the bottom frame cross beam are connected by welding to ensure the overall structural strength. The slide rail positioning beam is welded above the support frame formed by the bottom frame side beam and the bottom frame cross beam, with one slide rail positioning beam above each of the left and right bottom frame side beams. The pushing device can move the front pulley shaft, the rear pulley shaft, and the pulley connecting shaft by inserting and pulling the adjusting rod. The movable pins of the front pulley and the rear pulley slide up and down and are fixed at the holes of the side beam of the bottom frame.

[0018] The above technical solutions allow for adjusting the height of the push-in device by pulling the adjustment rod, and the push-in device can be pulled out after the fuel cell stack is positioned, making the fuel cell stack push-in process more convenient.

[0019] Furthermore, the front and rear sliders are embedded in the slider sliding track. The front slider is a fixed slider, with bolts passing through the positioning holes in the slide track and the slider fixing holes to fix its relative position. The rear slider is a movable slider, which can slide freely in the slider sliding track. The front slider mates with the positioning holes on the front end plate, and the rear slider mates with the positioning holes on the rear end plate, making it suitable for different fuel cell stack structures.

[0020] The above technical solutions enable the sliding track to be used with fuel cells of different lengths.

[0021] Furthermore, the adjusting rod is connected to the front pulley shaft and the rear pulley shaft by bolts, and pulling the adjusting rod simultaneously drives the front pulley and the rear pulley.

[0022] The above technical solutions can simultaneously drive the front and rear pulleys, making it easy to disassemble and push in the device.

[0023] In summary, this application includes at least one of the following beneficial technical effects: 1. Wide applicability: Suitable for various fuel cell stack heights. The height of the device can be easily adjusted by pulling the adjustment rod, reducing height mismatch caused by fuel cell stack design errors.

[0024] 2. Precise Positioning: The pulley assembly moves synchronously, ensuring the fuel cell stack remains horizontal and stable throughout the pushing process. The sliding rail positioning beam, combined with the front fixed pulleys, keeps the fuel cell stack centered horizontally. Adjusting the relative position of the pushing device and the fuel cell stack frame keeps the fuel cell stack centered front-back. The rear movable pulleys can accommodate fuel cell stack structures of different sizes, ultimately achieving precise positioning within the fuel cell stack frame.

[0025] 3. Protects the fuel cell stack: It avoids jamming and collisions caused by height mismatch, effectively protecting the fuel cell stack from damage.

[0026] 4. Improved efficiency and safety: Reduced labor intensity, simple and quick operation, significantly improved assembly efficiency and safety factor.

[0027] 5. Simple and reliable structure: The overall structure is simple, the manufacturing cost is low, and it is easy to maintain. Attached Figure Description

[0028] Figure 1 This is an exploded view of the pushing device according to an embodiment of this application.

[0029] Figure 2 This is an assembly diagram of the pushing device according to an embodiment of this application.

[0030] Figure 3 This is an operational schematic diagram of an electric stack pushing and positioning device provided in an embodiment of this application.

[0031] Figure 4 This is an assembly diagram of the fuel cell stack frame and fuel cell stack push-in support according to an embodiment of this application.

[0032] Figure 5 This is a schematic diagram of the fuel cell stack structure in an embodiment of this application.

[0033] Explanation of reference numerals in the attached drawings: 1. Stacker frame; 101. Stacker frame inlet support beam; 1011. Support beam positioning hole; 102. Stacker support beam; 103. Stacker frame sliding rail; 2. Stacker push-in bracket; 201. Stacker push-in bracket sliding rail; 202. Stacker push-in bracket fixed support; 2021. Fixed support positioning hole; 203. Fastening assembly; 3. Stacker; 301. Stacker front end plate; 3011. Front end plate positioning hole; 302. Stacker rear end plate; 3021. Rear end plate positioning hole; 4. Push-in device; 401. Bottom frame side beam; 402. Bottom frame crossbeam; 403. Slide rail positioning beam; 4031. Slide rail positioning hole; 40 32. Slider sliding track; 404. Front slider; 4041. Slider fixing hole; 4042. Slider pin; 405. Rear slider; 406. Adjusting rod; 407. Shaft connecting plate; 408. Adjusting rod fixing pin; 409. Front pulley shaft; 410. Rear pulley shaft; 411. Pulley connecting shaft; 412. Front pulley movable pin; 413. Rear pulley movable pin; 414. Front pulley connecting plate; 415. Rear pulley connecting plate; 416. Front pulley; 417. Rear pulley; 418. Front pulley shaft fixing bolt; 419. Rear pulley shaft fixing bolt; 420. Front pulley fixing pin; 421. Rear pulley fixing pin; Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-2 The present application will be further described in detail with reference to the embodiments.

[0035] This application discloses an electric stack pushing and positioning device. (See reference...) Figure 3 , 4A fuel cell stack pushing and positioning device includes a fuel cell stack frame 1, a fuel cell stack pushing bracket 2, a fuel cell stack 3, and a pushing device 4. The fuel cell stack frame 1 includes a fuel cell stack frame inlet support beam 101, a fuel cell stack support beam 102, and a fuel cell stack frame sliding track 103. The fuel cell stack pushing bracket 2 includes a fuel cell stack pushing bracket sliding track 201, a fuel cell stack pushing bracket fixing support 202, and a fastening assembly 203. The fuel cell stack frame 1 and the fuel cell stack pushing bracket 2 are constructed of welded steel structures. The fuel cell stack pushing bracket fixing support 202 in the fuel cell stack pushing bracket 2 is fixed to the fuel cell stack frame inlet support beam 101 in the fuel cell stack frame 1 by the fastening assembly 203. The fuel cell stack pushing bracket sliding track 201 and the fuel cell stack frame sliding track 103 form a complete track for pushing the fuel cell stack 3 into the fuel cell stack frame 1. The outer surface of the fuel cell stack pushing bracket sliding track 201 is flush with the outer surface of the fuel cell stack frame sliding track 103 to prevent the pushing device 4 from jamming. The two ends of the fuel cell stack rack sliding rail 103 are welded to the fuel cell stack rack 1, and the upper surface is flush with the upper surface of the fuel cell stack push-in support sliding rail 201. The fuel cell stack support beam 102 is welded to the fuel cell stack rack inlet support beam 101, so that a gap is formed between the fuel cell stack support beam 102 and the fuel cell stack rack sliding rail 103, which facilitates the placement and removal of the push-in device 4.

[0036] refer to Figure 1 , 2The pushing device 4 includes a bottom frame side beam 401, a bottom frame cross beam 402, a slide rail positioning beam 403, a front slider 404, a rear slider 405, an adjusting rod 406, a shaft connecting plate 407, an adjusting rod fixing pin 408, a front pulley shaft 409, a rear pulley shaft 410, a pulley connecting shaft 411, a front pulley movable pin 412, a rear pulley movable pin 413, a front pulley connecting plate 414, a rear pulley connecting plate 415, a front pulley 416, a rear pulley 417, a front pulley shaft fixing bolt 418, a rear pulley shaft fixing bolt 419, a front pulley fixing pin 420, and a rear pulley fixing pin 421. The slide rail positioning beam 403 includes a slide rail positioning hole 4031 and a slider sliding track 4032. The front slider 404 includes a slider fixing hole 4041 and a slider pin 4042. The bottom frame side beam 401 and bottom frame cross beam 402 are welded from steel. A slide rail positioning beam 403 is welded to the frame formed by the bottom frame side beam 401 and bottom frame cross beam 402; the length and width of the slide rail positioning beam 403 are the same as the length and width of the frame. The front slider 404 is bolted to the slide rail positioning hole 4031, and the rear slider 405 moves freely in the slider sliding track 4032, allowing it to move to different positions according to the length of the fuel cell stack. The front pulley shaft 409 is connected to the front pulley movable pin 412, and the two together can slide at the corresponding hole position at the front of the bottom frame side beam 401. The rear pulley shaft 410 is connected to the rear pulley movable pin 413, and the two together can slide at the corresponding empty position at the rear of the bottom frame side beam 401. The front pulley movable pin 412 passes through the upper part of the front pulley connecting plate 414. A front pulley fixing pin 420 passes through the lower part of the front pulley connecting plate 414 and is fixed to the bottom frame side beam 401. The front pulley connecting plate 414 is connected to the front pulley 416. A rear pulley movable pin 413 passes through the upper part of the rear pulley connecting plate 415. A rear pulley fixing pin 421 passes through the lower part of the upper part of the rear pulley connecting plate 415 and is fixed to the bottom frame side beam 401. The rear pulley connecting plate 415 is connected to the rear pulley 417. A pulley coupling 411 connects the front pulley shaft 409 and the rear pulley shaft 410. A front pulley shaft fixing bolt 418 fixes the front pulley shaft 409 and the pulley coupling 411. After the rear pulley shaft fixing bolt 419 is fixed, the rear pulley shaft 410 and the pulley coupling 411 are also fixed. One end of the shaft connecting plate 407 passes through the front pulley shaft 409, and the other end passes through the adjusting rod fixing pin 408. The adjusting rod 406 is fixed on the adjusting rod fixing pin 408, and the other end passes through the through hole of the bottom frame crossbeam 402. The front pulley 416 and the rear pulley 417 can be moved up and down by inserting and pulling the adjusting rod 406.

[0037] refer to Figure 2 , 5The fuel cell stack 3 includes a front plate 301 and a rear plate 302. The front plate 301 includes a front plate positioning hole 3011. The rear plate 302 includes a rear plate positioning hole 3021. A front slider 404 is a fixed slider, with a slider pin 4042 inserted into the front plate positioning hole 3011. A rear slider 405 is a movable slider, with a slider pin 4042 inserted into the rear plate positioning hole 3021. The front slider 404 can fix the fuel cell stack 3 at the left or right center position of the fuel cell stack frame 1, while the rear slider 405 can accommodate different fuel cell stack lengths.

[0038] The implementation principle of the fuel cell stack pushing and positioning device in this application embodiment is as follows: After the fuel cell stack frame and the fuel cell stack pushing support are connected by bolts, a complete sliding track is formed for the pushing device to slide. The pushing device is placed on the sliding track of the fuel cell stack pushing support, and the fuel cell stack and the front and rear sliders of the pushing device are connected by a lifting hoist. At this time, the adjusting rod of the pushing device is pushed inward, and the pushing device pulley is adjusted to the highest position, which can push the fuel cell stack along the sliding track of the fuel cell stack pushing support and the sliding track of the fuel cell stack frame into the center position of the fuel cell stack frame. After the fuel cell stack is positioned, the adjusting rod of the pushing device is pulled, and the pushing device pulley is adjusted to the lowest position, so that the pushing device can be removed from between the fuel cell stack support beam and the sliding track of the fuel cell stack frame.

[0039] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A device for pushing and positioning an electric stack, characterized in that, include: The electric stack frame (1), the electric stack push-in bracket (2), the electric stack (3), and the push-in device (4) are provided. The electric stack frame (1) and the electric stack push-in bracket (2) are connected by a rigid connector threaded together. The push-in device (4) can slide along the track of the electric stack frame (1) and the electric stack push-in bracket (2). The electric stack (3) and the push-in device (4) are connected by a detachable fixed connection.

2. The fuel cell stack pushing and positioning device as described in claim 1, characterized in that, The stack rack (1) includes a stack rack inlet support beam (101), a stack support beam (102), and a stack rack sliding track (103); the stack rack inlet support beam (101) includes a support beam positioning hole (1011); the stack rack inlet support beam (101) is located below the stack support beam (102), and the stack rack inlet support beam (101) and the stack support beam (102) are connected by welding; the stack rack sliding track (103) is located inside the stack support beam (102), and its height is lower than that of the stack support beam (102), which facilitates the entry and exit of the push-in device (4).

3. A stack push and positioning device as claimed in claim 1, wherein, The fuel cell push-in support (2) includes a fuel cell push-in support sliding track (201), a fuel cell push-in support fixed support (202), and a fastening assembly (203); the fuel cell push-in support sliding track (201) includes a fixed support positioning hole (2021); the fuel cell push-in support sliding track (201) and the fuel cell rack sliding track (103) are combined to form a complete sliding track, and the fuel cell entry support fixed support (202) at the front end of the fuel cell push-in support sliding track (201) is fixed on the fuel cell inlet support beam (101) by the fastening assembly (203), and the position is constrained by the support beam positioning hole (1011).

4. The fuel cell stack pushing and positioning device as described in claim 1, characterized in that, The fuel cell stack (3) includes a front end plate (301) and a rear end plate (302); the front end plate (301) includes a front end plate positioning hole (3011); the rear end plate (302) includes a rear end plate positioning hole (3021).

5. The fuel cell stack pushing and positioning device as described in claim 1, characterized in that, The pushing device (4) includes a bottom frame side beam (401), a bottom frame cross beam (402), a slide rail positioning beam (403), a front slider (404), a rear slider (405), an adjusting rod (406) shaft connecting plate (407), an adjusting rod fixing pin (408), a front pulley shaft (409), a rear pulley shaft (410), a pulley connecting shaft (411), a front pulley movable pin (412), a rear pulley movable pin (413), a front pulley connecting plate (414), a rear pulley connecting plate (415), a front pulley (416), a rear pulley (417), a front pulley shaft fixing bolt (418), and a rear pulley shaft fixing bolt. (419), front pulley fixing pin (420), rear pulley fixing pin (421); the slide rail positioning beam (403) includes a slide rail positioning hole (4031) and a slider sliding track (4032); the front slider (404) includes a slider fixing hole (4041) and a slider pin (4042); the bottom frame side beam (401) and the bottom frame cross beam (402) are connected by welding to ensure the overall strength of the structure. The slide rail positioning beam (403) is welded on the support frame formed by the bottom frame side beam (401) and the bottom frame cross beam (402). There is a slide rail positioning beam (403) on each of the left and right bottom frame side beams (401).

6. The fuel cell stack pushing and positioning device as described in claim 1, characterized in that, The pushing device (4) can drive the front pulley shaft (409), the rear pulley shaft (410), and the pulley connecting shaft (411) to move by inserting and pulling the adjusting rod (406). The front pulley movable pin (412) and the rear pulley movable pin (413) slide up and down and are fixed at the hole position of the bottom frame side beam (401).

7. The fuel cell stack pushing and positioning device as described in claim 5, characterized in that, The front slider (404) and the rear slider (405) are embedded in the slider sliding track (4032). The front slider (404) is a fixed slider. Bolts pass through the slide track positioning hole (4031) and the slider fixing hole (4041) to fix the relative position of the front slider (404). The rear slider (405) is a movable slider and can slide freely in the slider sliding track (4032). The front slider (404) is connected to the front plate positioning hole (3011), and the rear slider (405) is connected to the rear plate positioning hole (3021), which can be applied to different fuel cell stack structures.

8. The fuel cell stack pushing and positioning device as described in claim 5, characterized in that, The adjusting rod (406) is connected to the front pulley shaft (409) and the rear pulley shaft (410) by bolts. Pulling the adjusting rod (406) will simultaneously drive the front pulley (416) and the rear pulley (417).

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