Lifting device and lifting connection device

Abstract

The utility model discloses a lifting device and a lifting connection device. The lifting device comprises a supporting structure, the supporting structure comprises at least one supporting assembly, the supporting assembly is used for containing a base plate, each supporting assembly comprises a first base, the first base is provided with a plurality of sets of supporting units, and the supporting units are connected with the base plate; the lifting structure comprises a driving part, the output end of the driving part is provided with a steering assembly, the steering assembly is connected with at least one lifting assembly and converts rotary motion into vertical motion, and the lifting assemblies are connected with the first base so as to drive the base plate to ascend or descend. According to the utility model, the single driving piece drives the lifting assemblies through the steering assembly, so that synchronous lifting of multiple supporting points is ensured, and inclination or clamping stagnation of the substrate is avoided; the steering assembly converts the horizontal rotating motion of the driving piece into the vertical direction, and the problem that the precision of a traditional pneumatic / hydraulic system is insufficient due to pressure fluctuation is solved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission technology, and in particular to a lifting device and a lifting connection device. Background Technology

[0002] In the production of perovskite solar cells, the vertical lifting and connection of glass substrates is one of the core processes. Its precision and stability directly determine the connection effect between different process lines, thus affecting the photoelectric conversion efficiency and yield of the cells. However, traditional lifting technologies are prone to misalignment during equipment connection due to insufficient precision, which seriously affects process stability. In addition, existing perovskite glass substrate lifting devices and lifting and connection technologies still face significant technical bottlenecks such as poor synchronization and high maintenance costs.

[0003] Existing lifting and connecting devices mostly rely on pneumatic drive or chain / belt transmission to achieve vertical displacement, which has the following inherent drawbacks:

[0004] Pneumatic drive: (1) Low precision. Affected by air pressure fluctuations, the lifting and repositioning accuracy is only ±0.5mm, which leads to cumulative errors when the substrate is transferred between multiple devices such as vapor deposition / packaging, resulting in film defects or edge damage. (2) High energy consumption and maintenance costs. Continuous power supply is required to maintain cylinder pressure, and the energy consumption is more than 30% higher than that of electric systems; the seals are prone to aging and leakage, requiring frequent replacement.

[0005] Chain / belt drive: (1) Poor synchronization. Multiple transmission units may tilt due to chain pitch error or uneven belt tension, which may cause the lifting platform to jam or fall off in severe cases. (2) Severe mechanical wear. Chain hinges or belt teeth are prone to wear, requiring regular lubrication or replacement, which increases downtime costs.

[0006] However, as perovskite solar cells develop towards larger sizes and thinner wafers, higher requirements are placed on the precision, stability, and durability of the lifting and connecting devices.

[0007] To solve at least one of the above-mentioned technical problems, this utility model proposes a lifting device and a lifting connection device. Summary of the Invention

[0008] The purpose of this utility model is to provide a lifting device and a lifting connection device, which uses a single drive component to drive multiple lifting components through a steering component to ensure synchronous lifting of multiple support points and avoid substrate tilting or jamming.

[0009] The objective of this utility model is achieved through the following technical solution:

[0010] On the one hand, this utility model provides a lifting device, including:

[0011] A support structure, the support structure including at least one support component, the support component being used to place a substrate, each support component including a first base, the first base being provided with a plurality of support units, the support units being connected to the substrate;

[0012] The lifting structure includes a driving component, the output end of which is provided with a steering component. The steering component is connected to at least one lifting component to convert rotational motion into a vertical direction. The lifting component is connected to the first base to drive the substrate to rise or fall.

[0013] The beneficial effects of the above solution are as follows: This utility model, by evenly distributing multiple sets of support units on the first base, allows each unit to independently bear the local load of the substrate, avoiding substrate bending or stress concentration caused by traditional single-point support; the increased contact points between the support units and the substrate reduce the pressure per unit area, making it particularly suitable for brittle materials (such as perovskite glass substrates) and reducing the risk of breakage. The single drive component of this utility model drives multiple lifting components through a steering assembly, ensuring synchronous lifting of multiple support points and preventing substrate tilting or jamming; the steering assembly (such as a right-angle gearbox or worm gear) converts the horizontal rotational motion of the drive component into a vertical direction, solving the problem of insufficient accuracy caused by pressure fluctuations in traditional pneumatic / hydraulic systems. Furthermore, the support structure and lifting structure of this utility model are separated, allowing for independent disassembly or replacement of damaged parts (such as individual support units or ball screws), reducing downtime.

[0014] Furthermore, each of the support units includes:

[0015] A first guide shaft, the first end of the first guide shaft is connected to the first base, and the second end of the first guide shaft is provided with an internal threaded hole;

[0016] An adjusting screw is provided with an external thread on its surface that matches the internal threaded hole. One end of the adjusting screw is threaded into the internal threaded hole, and the other end of the adjusting screw is used to support the substrate.

[0017] The beneficial effects of the above solution are: This utility model uses an adjusting screw to finely adjust the support height via a thread, combined with the vertical limiting of the guide shaft, to achieve millimeter-level calibration of the substrate's levelness. Furthermore, the first guide shaft constrains the horizontal degree of freedom of the adjusting screw, preventing the support point from shifting during adjustment.

[0018] Furthermore, the adjusting screw includes:

[0019] A cylindrical head block stop screw, wherein the screw surface of the cylindrical head block stop screw is provided with an external thread that matches the internal thread hole, and the cylindrical head block of the cylindrical head block stop screw is a flat end structure that matches the substrate and is used to place the substrate.

[0020] A nut, the inner side of which is provided with a first thread that matches the external thread, the nut being threadedly connected to the cylindrical head block stop screw to adjust the raising and lowering of the cylindrical head block stop screw.

[0021] The beneficial effects of the above solution are: the cylindrical head block of the stop screw reduces direct friction between the substrate and the screw, avoiding scratches on the substrate surface. Furthermore, the flat-end structure of the cylindrical head block increases the contact area, disperses load pressure, and prevents substrate damage caused by localized stress concentration.

[0022] Furthermore, the steering component includes:

[0023] A first steering gear is connected to the driving component. The output end of the first steering gear is provided with at least one first coupling. The first coupling is connected to a first connecting rod, which is connected to the lifting assembly, thereby driving each lifting assembly to move synchronously.

[0024] Furthermore, the steering assembly further includes:

[0025] The second steering device has one end connected to the first connecting rod and the other end provided with a second coupling. The second coupling is connected to the second connecting rod, which is connected to the lifting assembly, driving each lifting assembly to move synchronously.

[0026] The beneficial effects of the above solution are: This utility model uses multiple sets of steering gears to synchronously drive the lifting assembly through couplings and connecting rods, eliminating the cumulative error of traditional transmission methods (such as chains) and ensuring consistent lifting of multiple support points.

[0027] Furthermore, each of the lifting components includes:

[0028] A ball screw jack, one end of which is connected to the second connecting rod or the first connecting rod, and the other end of which is connected to the first base, to drive the substrate to rise or fall.

[0029] The beneficial effects of the above solution are: the transmission efficiency of this ball screw jack reaches over 90%, energy consumption is reduced by 30% compared to pneumatic systems, there is no mechanical wear, no lubrication is required, and the service life exceeds 100,000 hours. Furthermore, the screw end is rigidly fixed to the first base, avoiding elastic deformation of the belt / chain and improving response speed.

[0030] Furthermore, the lifting device also includes a guide mechanism, which comprises:

[0031] A second base, on which a second linear bearing is provided;

[0032] The second guide shaft passes through the second linear bearing and is connected to the first base.

[0033] The axis of the second guide shaft is parallel to the axis of the ball screw jack, thus limiting the horizontal offset of the first base.

[0034] The beneficial effects of the above solution are: This invention, by having a second guide shaft parallel to the ball screw axis, limits the horizontal offset of the first base, preventing jamming or tilting caused by uneven loading. Furthermore, the linear bearing reduces frictional resistance, ensuring a smooth and vibration-free lifting process.

[0035] Furthermore, the lifting device further includes:

[0036] The sensing component is used to detect the origin position, upper limit position, and lower limit position of the substrate.

[0037] Furthermore, the sensing component includes at least one slotted photoelectric sensor, which is mounted on the substrate.

[0038] On the other hand, this utility model provides a lifting and connecting device, including the above-mentioned lifting device.

[0039] The beneficial effects of the above solution are: This utility model can not only meet the stringent requirements of high precision and high stability in the entire production process of perovskite solar cells, but also reduce the production line cycle time and increase production capacity through fast and accurate lifting and connecting.

[0040] Compared with the prior art, the beneficial effects of this utility model include at least the following:

[0041] This invention utilizes multiple sets of support units evenly distributed on a first base, each unit independently bearing the local load of the substrate, avoiding substrate bending or stress concentration caused by traditional single-point support. The increased contact points between the support units and the substrate reduce pressure per unit area, making it particularly suitable for brittle materials such as perovskite glass substrates, reducing the risk of breakage. The single drive unit of this invention drives multiple lifting components via a steering assembly, ensuring synchronous lifting of multiple support points and preventing substrate tilting or jamming. The steering assembly converts the horizontal rotational motion of the drive unit into a vertical direction, solving the accuracy problem caused by pressure fluctuations in traditional pneumatic / hydraulic systems. Furthermore, the support structure and lifting structure of this invention are separate, allowing for independent disassembly or replacement of damaged parts, reducing downtime. Attached Figure Description

[0042] Figure 1 This is a structural schematic diagram of a lifting device according to an embodiment of the present utility model.

[0043] Figure 2This is a schematic diagram of the structure of a support component according to an embodiment of the present utility model.

[0044] Figure 3 yes Figure 2 An enlarged view of A in the image.

[0045] Figure 4 This is a schematic diagram of a lifting structure according to an embodiment of the present utility model.

[0046] In the diagram: 100, Lifting device; 2, Support structure; 21, Support assembly; 211, First base; 212, Support unit; 3, Lifting structure; 31, Driving component; 32, Steering assembly; 33, Lifting assembly; 2121, First guide shaft; 2123, First shaft support; 2122, Adjusting screw; 21221, Cylindrical head block stop screw; 21222, Nut; 321, First steering gear; 322, First coupling; 323, First connecting rod; 324, Second steering gear; 325, Second coupling; 326, Second connecting rod; 331, Ball screw jack; 4, Guide mechanism; 41, Second base; 43, Second linear bearing; 42, Second guide shaft. Detailed Implementation

[0047] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0048] The terms used to describe position and direction in this utility model are illustrated with the accompanying drawings, but changes can be made as needed, and all such changes are included within the scope of protection of this utility model.

[0049] In order to meet the stringent requirements of high precision (e.g., micron-level) and high stability in the entire production process of perovskite solar cells, and to reduce production line cycle time through fast and accurate lifting and connecting, the lifting and connecting device of this utility model includes a lifting device 100.

[0050] refer to Figure 1 The lifting device 100 of this utility model includes: a support structure 2 and a lifting structure 3. Furthermore, the lifting device 100 of this utility model may also include: a guide mechanism 4 and a sensing component.

[0051] The support structure 2 of this utility model includes at least one support component 21, which is used to place the substrate.

[0052] In application, the substrate is a perovskite glass substrate.

[0053] In practical applications, the support structure 2 includes two support components 21, each of which is used to place a substrate. The two support components 21 are arranged side by side along the Y-axis and symmetrical along the X-axis, with the X-axis perpendicular to the Y-axis.

[0054] refer to Figure 2 Each support component 21 of this utility model includes a first base 211, on which multiple sets of support units 212 are provided, and the support units 212 are connected to the substrate.

[0055] In application, multiple sets of support units 212 are arranged at equal intervals. By uniformly distributing multiple sets of support units 212 on the first base 211, each unit independently bears the local load of the substrate, avoiding substrate bending or stress concentration caused by traditional single-point support. In addition, by setting multiple sets of support units 212, the number of contact points between the support unit 212 and the substrate is increased, reducing the pressure per unit area, which is especially suitable for brittle materials, such as perovskite glass substrates, reducing the risk of breakage.

[0056] In practical applications, the first base 211 can be square, rectangular, or circular. Preferably, the first base 211 is a square frame with a hollow structure, which can reduce the weight of the device and lower the cost.

[0057] Each support unit 212 of this invention includes a first guide shaft 2121 and an adjusting screw 2122. Further, each support unit 212 also includes a stop. Specifically, the adjusting screw 2122 is used to finely adjust the support height via its thread, combined with the vertical limiting of the guide shaft, to achieve millimeter-level calibration of the substrate's levelness. Furthermore, the first guide shaft 2121 constrains the horizontal freedom of the adjusting screw 2122, preventing the support point from shifting during adjustment.

[0058] In application, the first end of the first guide shaft 2121 is connected to the first base 211, and the second end of the first guide shaft 2121 is provided with an internal threaded hole. The surface of the adjusting screw 2122 is provided with an external thread that matches the internal threaded hole. One end of the adjusting screw 2122 is threaded into the internal threaded hole, and the other end of the adjusting screw 2122 is used to support the substrate. The first end of the stop is connected to the adjusting screw 2122, and the second end of the stop has a flat end structure that matches the substrate and is used to place the substrate.

[0059] In practical applications, a first shaft support 2123 is installed on the first base 211 in a direction perpendicular to the first base 211, and the bottom of the first guide shaft 2121 is installed inside the first shaft support 2123, so that the first guide shaft 2121 is perpendicular to the first base 211. An internal threaded hole is opened at the top of the first guide shaft 2121 for installing an adjusting screw 2122. The adjusting screw 2122 is a standard type internal hexagon screw, which is convenient for adjustment and fixation.

[0060] refer to Figure 3 The adjusting screw 2122 of this utility model includes: a cylindrical head stop screw 21221 and a nut 21222. The screw surface of the cylindrical head stop screw 21221 is provided with an external thread that matches the internal thread hole, and the cylindrical head stop screw 21221 is threadedly installed in the internal thread hole. The inner side of the nut 21222 is provided with a first thread that matches the external thread, and the nut 21222 is threadedly connected to the cylindrical head stop screw 21221 and is sleeved on the screw of the cylindrical head stop screw 21221 to adjust the raising and lowering of the cylindrical head stop screw 21221. In addition, the cylindrical head of the cylindrical head stop screw 21221 can reduce the direct friction between the substrate and the screw, and avoid scratching the substrate surface.

[0061] In application, the cylindrical head block of the cylindrical head block stop screw 21221 has a flat end structure that matches the substrate and is used to place the substrate. This increases the contact area, disperses the load pressure, and prevents substrate damage caused by local stress concentration.

[0062] refer to Figure 1 and Figure 3 The lifting structure 3 of this utility model includes a driving component 31. The output end of the driving component 31 is provided with a steering component 32. The steering component 32 is connected to at least one lifting component 33 to convert the rotational motion into a vertical direction. The lifting component 33 is connected to the first base 211 to drive the base plate to rise or fall.

[0063] In application, the drive unit 31 is a servo motor. In practical applications, the drive unit 31 is a linear servo motor.

[0064] A single drive unit 31 drives multiple lifting components 33 through a steering assembly 32 to ensure synchronous lifting of multiple support points and avoid tilting or jamming of the base plate. The steering assembly 32, such as a right-angle gearbox or worm gear, converts the horizontal rotational motion of the drive unit 31 into the vertical direction, solving the problem of insufficient accuracy caused by pressure fluctuations in traditional pneumatic or hydraulic systems.

[0065] The steering assembly 32 of this invention includes a first steering gear 321. Further, the steering assembly 32 of this invention may also include a second steering gear 324. By employing multiple steering gears to synchronously drive the lifting assembly 33 through couplings and connecting rods, the accumulated errors of traditional transmission methods are eliminated, ensuring consistent lifting across multiple support points.

[0066] The first steering device 321 of this utility model is connected to the driving component 31. The output end of the first steering device 321 is provided with at least one first coupling 322. The first coupling 322 is connected to the first connecting rod 323. The first connecting rod 323 is connected to the lifting component 33, driving each lifting component 33 to move synchronously.

[0067] In application, the servo motor is connected to the first steering gear 321 via a flange. The output shaft of the first steering gear 321 is equipped with two first couplings 322, each first coupling 322 connecting to a first connecting rod 323, and each first connecting rod 323 connecting to a set of lifting components 33. In this case, the servo motor can drive the two base plates to move synchronously through the two sets of lifting components 33, for example, synchronously rising or synchronously falling. The two first connecting rods 323 are arranged side-by-side along the Y-axis and symmetrical along the X-axis, with the X-axis perpendicular to the Y-axis.

[0068] One end of the second steering device 324 of this utility model is connected to the first connecting rod 323, and the other end of the second steering device 324 is provided with a second coupling 325. The second coupling 325 is connected to the second connecting rod 326, and the second connecting rod 326 is connected to the lifting assembly 33, driving each lifting assembly 33 to move synchronously.

[0069] In application, the output end of each first connecting rod 323 is connected to a second steering device 324. The output shaft of each second steering device 324 is connected to two second connecting rods 326 via a second coupling 325. Each second connecting rod 326 is connected to a set of lifting components 33. At this time, the servo motor can drive the four base plates to move synchronously through the four sets of lifting components 33, for example, synchronously rising or synchronously falling. The four sets of lifting components 33 are respectively arranged in four directions and are symmetrically arranged around the drive member 31.

[0070] In practical applications, the second connecting rod 326 is shorter than the first connecting rod 323.

[0071] Each lifting component 33 of this utility model includes a ball screw lifter 331. One end of the ball screw lifter 331 is connected to the second connecting rod 326 or the first connecting rod 323, and the other end of the ball screw lifter 331 is connected to the first base 211 to drive the base plate to rise or fall.

[0072] It is worth noting that the servo motor combined with the ball screw transmission method can achieve a repeatability of ±0.01mm, ensuring the connection accuracy between various process lines.

[0073] When applied, the 331 ball screw jack has a transmission efficiency of over 90%, reduces energy consumption by 30% compared to pneumatic systems, has no mechanical wear, requires no lubrication, and has a service life of over 100,000 hours.

[0074] In practical applications, the ball screw jack 331 is rigidly connected to the first base 211 via a flange at the end of the screw shaft, driving the base plate to reciprocate along the Z-axis. This avoids elastic deformation of the belt or chain and improves the response speed. The Z-axis is perpendicular to the first base plate, and the Z-axis, X-axis, and Y-axis are mutually perpendicular.

[0075] The guiding mechanism 4 of this utility model includes a second base 41 and a second guide shaft 42. A second linear bearing 43 is provided on the second base 41, and the second guide shaft 42 passes through the second linear bearing 43 and is connected to the first base 211.

[0076] In application, the axis of the second guide shaft 42 is parallel to the screw axis of the ball screw jack 331, limiting the horizontal offset of the first base 211 and preventing jamming or tilting caused by off-center loading. In addition, the second linear bearing 43 reduces frictional resistance, ensuring a smooth and vibration-free lifting process.

[0077] In practical applications, the guide mechanism 4 may include multiple sets of second guide shafts 42 and second linear bearings 43. The ball screw jack 331 drives the base plate to move vertically along the second linear bearings 43.

[0078] Furthermore, the second base 41 can be square, rectangular, or circular. Preferably, the second base 41 is a square frame with a hollow structure, which can reduce the weight of the device and lower the cost.

[0079] The sensing component of this invention is used to detect the origin position, upper limit position, and lower limit position of a substrate.

[0080] In application, the sensing components are mounted on the side of the second or first base plate of the lifting device 100 by fasteners, such as bolts.

[0081] The sensing component of this utility model includes at least one slotted photoelectric sensor, which includes an origin sensor, an upper limit sensor, and a lower limit sensor.

[0082] In application, the origin sensor is installed at the initial positioning position of the substrate to calibrate the starting point of the lifting motion; the upper limit sensor is set at the highest point of the substrate's lifting stroke to prevent overtravel collisions; and the lower limit sensor is set at the lowest point of the substrate's lifting stroke to ensure safe resetting.

[0083] In practical applications, each sensor and a high-precision servo motor, such as an absolute encoder servo motor, together with an external controller, form a closed-loop feedback system to achieve precise adjustment of lifting and lowering displacement and ensure that the displacement of each set of lowering devices is consistent.

[0084] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention, and all such changes should fall within the protection scope of the claims of the present invention.

Claims

1. A lifting device, characterized in that, include: The support structure (2) includes at least one support component (21), which is used to place a substrate. Each support component (21) includes a first base (211), on which multiple sets of support units (212) are provided. The support units (212) are connected to the substrate. The lifting structure (3) includes a drive member (31), the output end of which is provided with a steering component (32), the steering component (32) is connected to at least one lifting component (33) to convert the rotational motion into a vertical direction, and the lifting component (33) is connected to the first base (211) to drive the substrate to rise or fall.

2. The lifting device according to claim 1, characterized in that, Each of the support units (212) includes: A first guide shaft (2121) is provided, with its first end connected to the first base (211) and its second end having an internal threaded hole. An adjusting screw (2122) is provided on the surface of which is an external thread that matches the internal threaded hole. One end of the adjusting screw (2122) is threaded to the internal threaded hole, and the other end of the adjusting screw (2122) is used to support the substrate.

3. The lifting device according to claim 2, characterized in that, Adjusting screw (2122) includes: A cylindrical head block stop screw (21221) has an external thread on its screw surface that matches the internal thread hole. The cylindrical head block of the cylindrical head block stop screw (21221) is a flat-end structure that matches the substrate and is used to place the substrate. Nut (21222), the inner side of the nut (21222) is provided with a first thread that matches the external thread, the nut (21222) is threadedly connected to the cylindrical head block stop screw (21221) to adjust the lifting and lowering of the cylindrical head block stop screw (21221).

4. The lifting device according to claim 1, characterized in that, The steering assembly (32) includes: A first steering gear (321) is connected to the drive unit (31). At least one first coupling (322) is provided at the output end of the first steering gear (321). The first coupling (322) is connected to a first connecting rod (323). The first connecting rod (323) is connected to the lifting assembly (33) to drive each lifting assembly (33) to move synchronously.

5. The lifting device according to claim 4, characterized in that, The steering assembly (32) also includes: The second steering device (324) has one end connected to the first connecting rod (323) and the other end of the second steering device (324) is provided with a second coupling (325). The second coupling (325) is connected to the second connecting rod (326), and the second connecting rod (326) is connected to the lifting assembly (33), driving each lifting assembly (33) to move synchronously.

6. The lifting device according to claim 5, characterized in that, Each of the lifting components (33) includes: A ball screw jack (331) is provided, one end of which is connected to the second connecting rod (326) or the first connecting rod (323), and the other end of which is connected to the first base (211) to drive the substrate to rise or fall.

7. The lifting device according to claim 6, characterized in that, The lifting device further includes a guide mechanism (4), which includes: The second base (41) is provided with a second linear bearing (43); The second guide shaft (42) passes through the second linear bearing (43) and is connected to the first base (211). The axis of the second guide shaft (42) is parallel to the screw axis of the ball screw jack (331), thus limiting the horizontal offset of the first base (211).

8. The lifting device according to claim 1, characterized in that, The lifting device also includes: The sensing component is used to detect the origin position, upper limit position, and lower limit position of the substrate.

9. The lifting device according to claim 8, characterized in that, The sensing component includes at least one slotted photoelectric sensor, which is mounted on the substrate.

10. A lifting and connecting device, characterized in that, Includes the lifting device (100) as described in any one of claims 1 to 9.

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