Photovoltaic panel assembly storage rack library and automatic storing and taking device with same

Abstract

The utility model provides a photovoltaic panel assembly storage rack warehouse and an automatic storing and taking device with the same, the photovoltaic panel assembly storage rack warehouse comprises a hoisting frame, a hoisting mechanism, a first rectangular frame and a connecting piece, and the hoisting mechanism is installed on the hoisting frame; the multiple first rectangular frames are arranged in parallel up and down, every two adjacent first rectangular frames are connected through the multiple telescopic connecting pieces, and a storage gap is formed between every two adjacent first rectangular frames. One end of the connecting piece is fixedly connected with the hoisting end of the hoisting mechanism, and the other end of the connecting piece is fixedly connected with the topmost first rectangular frame. The photovoltaic panel assembly storage rack library and the automatic storing and taking device with the photovoltaic panel assembly storage rack library belong to the field of photovoltaic technologies, and can automatically store and take photovoltaic panel assemblies.

Description

Technical Field

[0001] The utility model relates to a photovoltaic panel component storage rack and an automatic storage and retrieval device therewith, belonging to the photovoltaic technical field. Background Art

[0002] During the production and transportation of photovoltaic panel assemblies, a large number of photovoltaic panel assemblies need to be stored and extracted to prepare for the next process. The prior art CN217801642U discloses a photovoltaic panel storage bracket. By adding a flap, the overall space of the storage bracket can be fully utilized. In order to improve the applicability of the storage bracket to photovoltaic panels of various specifications, the flap can be adsorbed on the switching component through the adsorption component to achieve the folding of the flap, and finally realize the switching of the storage bracket in the transportation mode of photovoltaic panels of different specifications. The buffer unit can alleviate the impact force of the bulky photovoltaic panel when it is transferred to the storage bracket and directly contacted with the storage bracket, avoiding bumps and damage to the photovoltaic panel. However, it cannot adjust its own volume, and multiple photovoltaic panels are arranged at an angle, which is not conducive to extraction and placement, and is not conducive to automation improvement. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a photovoltaic panel component storage rack and an automatic storage and retrieval device having the same, which can automatically store and retrieve the photovoltaic panel components.

[0004] The utility model solves the above technical problems with the following technical solutions: A photovoltaic panel assembly storage rack, comprising:

[0005] Lifting frame;

[0006] A lifting mechanism, wherein the lifting mechanism is installed on the lifting frame;

[0007] A first rectangular frame, wherein the first rectangular frames are multiple and arranged in parallel up and down, and two adjacent first rectangular frames are connected by multiple telescopic connectors to form a storage gap between them;

[0008] A connecting piece, one end of which is fixedly connected to the lifting end of the lifting mechanism, and the other end of which is fixedly connected to the first rectangular frame at the top.

[0009] The beneficial effects of the utility model are as follows: the lifting mechanism lifts the topmost first rectangular frame upwards through the connecting piece, the telescopic connecting piece is extended, and a storage gap is formed between two adjacent first rectangular frames, the storage gap is used to store panels, and multiple photovoltaic panel assemblies can be arranged in parallel, thereby improving the storage stability of the photovoltaic panel assemblies and improving the storage efficiency; when the multiple first rectangular frames are not affected by the lifting mechanism, there is no gap between them in a stacked state, and the volume can be reduced.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, the connecting member includes two reinforcement plates, the inner side plates of which are fixed correspondingly to the two side edges of the first rectangular frame at the top, and a plurality of second rectangular frames arranged in parallel and at intervals are fixed between the two reinforcement plates, storage gaps are formed between the plurality of second rectangular frames, and the plurality of second rectangular frames are located above the first rectangular frame at the top.

[0012] The beneficial effect of adopting the above further scheme is as follows: in order to improve the connection strength between the lifting mechanism and the first rectangular frame and the lifting mechanism, reinforcement plates are fixed to the two side edges of the top first rectangular frame, and a plurality of parallel and spaced second rectangular frames are fixed between the two reinforcement plates, which not only increases the strength of the reinforcement plates on both sides, but also forms a storage gap therebetween for storing photovoltaic panel assemblies.

[0013] Furthermore, the lifting mechanism includes a lifting motor, a driving shaft and two transmission components. The lifting motor is fixed on the lifting frame, and the driving shaft is rotatably connected to the lifting frame via a rotating connecting seat. The output shaft of the lifting motor is transmission-connected to the driving shaft, and both ends of the driving shaft are transmission-connected to two reinforcement plates via the two transmission components.

[0014] Furthermore, the transmission assembly includes a driving sprocket, a driven sprocket and a chain, the driving sprocket is fixed at one end of the drive shaft, the driven sprocket is installed on the lifting frame through a wheel frame, the chain is transmission-connected to the driving sprocket and the driven sprocket, and the reinforcement plate is fixedly connected to the chain.

[0015] Furthermore, the connecting member also includes two connecting plates, which are symmetrically fixed on the outer plate surface of the reinforcing plate, and the chain is disconnected and its two ends are fixedly connected to the upper and lower ends of the connecting plates.

[0016] The utility model solves the above-mentioned technical problem through the following technical solution: an automatic storage and retrieval device, comprising a storage and retrieval mechanism and the storage rack library, wherein the storage and retrieval mechanism is installed on the lifting frame and is located in the first rectangular frame, and the driving end of the storage and retrieval mechanism can correspond to the storage gap.

[0017] The beneficial effect of the utility model is that when multiple first rectangular frames are stacked, the driving end of the storage and retrieval mechanism is higher than the topmost first rectangular frame, and the photovoltaic panel assembly is transported to the driving end of the storage and retrieval mechanism. At this time, the driving end can transport the photovoltaic panel assembly to the inside of the first rectangular frame. When the two side ends of the photovoltaic panel assembly can overlap on the first rectangular frame, the storage and retrieval mechanism stops transporting, and the lifting mechanism lifts the top first rectangular frame upward. The top first rectangular frame abuts against the photovoltaic panel assembly to lift it upward. At the same time, the distance between the top first rectangular frame and the first rectangular frame below it becomes larger and forms a storage gap. After the gap increases to the maximum, the adjacent first rectangular frame below is pulled upwards, and the photovoltaic panel assembly continues to be transported to the driving end of the storage and retrieval mechanism, and the driving end can transport the photovoltaic panel assembly to the inside of the first rectangular frame, and so on, multiple photovoltaic panel assemblies are stored in multiple storage gaps accordingly; when the photovoltaic panel assembly needs to be extracted, the lifting mechanism transports the first rectangular frame downwards, so that the photovoltaic panel assembly of the bottom layer abuts against the driving end of the storage and retrieval mechanism, and the driving end of the storage and retrieval mechanism outputs the photovoltaic panel assembly, and so on, the photovoltaic panel assemblies in the storage rack are extracted in turn to complete the automatic storage and retrieval of the photovoltaic panel assemblies.

[0018] Furthermore, the storage and retrieval mechanism includes a support frame, a drive motor and multiple groups of belt conveyor assemblies. The support frame is fixed at the bottom of the lifting frame and is located in the first rectangular frame. The drive motor is fixed on the support frame. The multiple groups of belt conveyor assemblies are arranged in parallel and installed on the support frame. The drive motor is connected to the multiple groups of belt conveyor assemblies through a transmission shaft.

[0019] The beneficial effect of adopting the above further solution is that the drive motor is connected to the transmission shaft through the coupling.

[0020] Furthermore, the belt conveyor assembly includes a mounting plate, a driving wheel, a driven wheel and a conveyor belt. The mounting plate is fixed on the support frame and has a mounting hole. The transmission shaft passes through the mounting hole and is rotatably connected thereto. The driving wheel is fixed on the transmission shaft. The driven wheel is rotatably connected to one end of the mounting plate away from the mounting hole. The conveyor belt is transmission-connected to the driving wheel and the driven wheel.

[0021] Furthermore, the belt conveyor assembly also includes a connecting shaft, a through hole is opened on the mounting plate, the connecting shaft passes through and is fixedly connected to the through hole, and the driven wheel is rotatably connected to the connecting shaft.

[0022] Furthermore, the storage and retrieval mechanism also includes a plurality of groups of support wheel assemblies, each group of the support wheel assemblies is rotatably connected to the support frame and arranged parallel to the conveyor belt, and the highest point of the support wheel assembly is flush with the topmost surface of the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of a photovoltaic panel assembly storage rack provided by the utility model when in operation;

[0024] Figure 2 for Figure 1 The main view;

[0025] Figure 3 for Figure 1 Left view of

[0026] Figure 4 A schematic diagram of the structure of a photovoltaic panel assembly storage rack provided by the utility model when it is shut down;

[0027] Figure 5 for Figure 4 A magnified view of part A;

[0028] Figure 6 for Figure 5 The main view;

[0029] Figure 7 for Figure 5 Left view of

[0030] Figure 8 A schematic diagram of the structure of a storage and retrieval mechanism and a lifting frame in an automatic storage and retrieval device provided by the utility model;

[0031] Fig. 9 for Figure 8 A magnified view of part B;

[0032] Fig.10 A schematic diagram of the structure of an automatic storage and retrieval device provided by the utility model when it is working;

[0033] Fig.11 The utility model is a structural schematic diagram of an automatic storage and retrieval device when it stops working.

[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0035] 1. Lifting frame; 2. Lifting mechanism; 21. Lifting motor; 22. Transmission assembly; 221. Driving sprocket; 222. Driven sprocket; 223. Chain; 224. Wheel frame; 23. Drive shaft; 24. Rotating connecting seat; 25. Gear box; 3. First rectangular frame; 4. Storage gap; 5. Fixed connecting piece; 51. Reinforcement plate; 52. Connecting plate; 6. Second rectangular frame; 7. Storage gap; 8. Access mechanism; 81. Support frame; 82. Transmission shaft; 83. Belt conveyor assembly; 831. Mounting plate; 832. Driving wheel; 833. Driven wheel; 834. Conveyor belt; 835. Connecting shaft; 84. Support wheel assembly; 9. Telescopic connecting piece. DETAILED DESCRIPTION

[0036] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0037] The purpose of the utility model is to provide a photovoltaic panel component storage rack and an automatic storage and retrieval device therewith, so as to solve the problems existing in the prior art and to automatically store and retrieve photovoltaic panel components.

[0038] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] The utility model provides a photovoltaic panel component storage rack library, such as Figures 1 to 7 As shown, including:

[0040] Lifting frame 1;

[0041] A lifting mechanism 2, wherein the lifting mechanism 2 is installed on the lifting frame 1;

[0042] A first rectangular frame 3, wherein the first rectangular frames 3 are multiple and arranged in parallel up and down, and two adjacent first rectangular frames 3 are connected by multiple telescopic connectors 9 and a storage gap 4 is formed between them;

[0043] A fixed connecting member 5 , one end of which is fixedly connected to the lifting end of the lifting mechanism 2 , and the other end of which is fixedly connected to the first rectangular frame 3 at the top.

[0044] The utility model provides a photovoltaic panel assembly storage rack. The lifting mechanism 2 lifts the topmost first rectangular frame 3 upwards through the fixed connecting piece 5. The telescopic connecting piece 9 is extended to form a storage gap 4 between two adjacent first rectangular frames 3. The storage gap 4 is used to store photovoltaic panel assemblies. Multiple photovoltaic panel assemblies can be arranged in parallel, thereby improving the stability of photovoltaic panel assembly storage and improving storage efficiency. When the multiple first rectangular frames 3 are not affected by the lifting mechanism 2, there is no gap between them in a stacked state, which can reduce the volume.

[0045] Preferably, the telescopic connecting member 9 can be a telescopic rod, a flexible belt or a connecting belt.

[0046] In a specific embodiment of the utility model, multiple first rectangular frames 3 are all provided with threaded holes, and the locking plate is provided with through holes. The locking bolts pass through the through holes and connect with the threaded holes to lock the connecting belt on the first rectangular frame 3 .

[0047] In a specific embodiment of the utility model, the fixed connecting member 5 includes two reinforcement plates 51, the inner side plate surfaces of the two reinforcement plates 51 are fixed to the two side edges of the top first rectangular frame 3, and a plurality of parallel and spaced second rectangular frames 6 are fixed between the two reinforcement plates 51, and storage gaps 7 are formed between the plurality of second rectangular frames 6, and the plurality of second rectangular frames 6 are located above the top first rectangular frame 3.

[0048] In order to improve the connection strength between the lifting mechanism 2 and the first rectangular frame 3, reinforcement plates 51 are fixed to the two side edges of the top first rectangular frame 3, and a plurality of parallel and spaced second rectangular frames 6 are fixed between the two reinforcement plates 51, which not only increase the strength of the reinforcement plates 51 on both sides, but also form a storage gap 7 for storing photovoltaic panel assemblies.

[0049] In a specific embodiment of the present invention, the first rectangular frame 3 and the second rectangular frame 6 have the same shape.

[0050] In a specific embodiment of the present invention, the outer side surfaces of the two reinforcing plates 51 are in sliding contact with the inner side of the lifting frame 1 .

[0051] In a specific embodiment of the utility model, the lifting mechanism 2 includes a lifting motor 21, a driving shaft 23 and two transmission components 22. The lifting motor 21 is fixed on the lifting frame 1, and the driving shaft 23 is rotatably connected to the lifting frame 1 through a rotating connecting seat 24. The output shaft of the lifting motor 21 is transmission-connected to the driving shaft 23, and the two ends of the driving shaft 23 are transmission-connected to the two reinforcement plates 51 through the two transmission components 22.

[0052] In a specific embodiment of the utility model, there are two rotating connection seats 24 which are respectively fixed on two sides of the lifting frame 1 , and the driving shaft 23 passes through and is rotatably connected to the two rotating connection seats 24 .

[0053] In a specific embodiment of the utility model, the rotating connection seat 24 includes a fixed seat and a bearing. The fixed seat is fixed on the lifting frame 1, the outer ring of the bearing is fixed on the fixed seat, and the inner ring is fixedly connected to the driving shaft 23.

[0054] In a specific embodiment of the utility model, a gear box 25 is further included. The output shaft of the lifting motor 21 is transmission-connected to the gear box 25 , and the driving shaft 23 is transmission-connected to the gear box 25 .

[0055] In a specific embodiment of the utility model, the transmission assembly 22 includes a driving sprocket 221, a driven sprocket 222 and a chain 223. The driving sprocket 221 is fixed to one end of the driving shaft 23, and the driven sprocket 222 is installed on the lifting frame 1 through a wheel frame 224. The chain 223 is transmission-connected to the driving sprocket 221 and the driven sprocket 222, and the reinforcement plate 51 is fixedly connected to the chain 223.

[0056] In a specific embodiment of the present invention, two driving sprockets 221 are fixed at two ends of the driving shaft 23 .

[0057] In a specific embodiment of the utility model, the fixed connecting member 5 also includes two connecting plates 52, which are symmetrically fixed on the outer plate surface of the reinforcing plate 51, and the chain 223 is disconnected and its two ends are fixedly connected to the upper and lower ends of the connecting plates 52.

[0058] The utility model provides an automatic storage and retrieval device, such as Figures 8 to 11 As shown, it includes a storage and retrieval mechanism 8 and a storage rack. The storage and retrieval mechanism 8 is installed on the lifting frame 1 and is located in the first rectangular frame 3. The driving end of the storage and retrieval mechanism 8 can correspond to the storage gap 4.

[0059] The automatic storage and retrieval device provided by the utility model has the following advantages: when multiple first rectangular frames 3 are stacked and arranged, the driving end of the storage and retrieval mechanism 8 is higher than the topmost first rectangular frame 3, and the conveyor belt conveying mechanism in the factory conveys the photovoltaic panel assembly to the driving end of the storage and retrieval mechanism 8. At this time, the driving end can transport the photovoltaic panel assembly to the inside of the first rectangular frame 3. When the two side ends of the photovoltaic panel assembly can be overlapped on the first rectangular frame 3, the storage and retrieval mechanism 8 stops transporting, and the lifting mechanism 2 lifts the top first rectangular frame 3 upwards. The top first rectangular frame 3 abuts against the photovoltaic panel assembly to lift it upwards. At the same time, the distance between the top first rectangular frame 3 and the first rectangular frame 3 below it becomes larger and forms a storage gap 4 for storage. After the gap 4 increases to the maximum, the adjacent first rectangular frame 3 below is pulled upwards, and the photovoltaic panel assembly continues to be transported to the driving end of the access mechanism 8, and the driving end can transport the photovoltaic panel assembly to the inside of the first rectangular frame 3, and so on, multiple photovoltaic panel assemblies are stored in multiple storage gaps 4 accordingly; when the photovoltaic panel assembly needs to be extracted, the lifting mechanism 2 transports the first rectangular frame 3 downward, so that the photovoltaic panel assembly of the lowermost layer abuts against the driving end of the access mechanism 8, and the driving end of the access mechanism 8 outputs the photovoltaic panel assembly, and the conveyor belt conveying mechanism receives the output photovoltaic panel assembly, and so on, the photovoltaic panel assemblies in the storage rack are extracted in turn to complete the automatic storage and extraction of the photovoltaic panel assemblies.

[0060] In a specific embodiment of the present invention, the storage gap 7 can also store photovoltaic panel components.

[0061] In a specific embodiment of the utility model, the storage and retrieval mechanism 8 includes a support frame 81, a drive motor and multiple groups of belt conveyor components 83. The support frame 81 is fixed to the bottom of the lifting frame 1 and is located in the first rectangular frame 3. The drive motor is fixed on the support frame 81. The multiple groups of belt conveyor components 83 are arranged in parallel and installed on the support frame 81. The drive motor is connected to the multiple groups of belt conveyor components 83 through a transmission shaft 82.

[0062] The drive motor is connected to the transmission shaft 82 through a coupling. The installation method of the drive motor is the existing technology and is not shown in the drawings.

[0063] In a specific embodiment of the utility model, the belt conveyor assembly 83 includes a mounting plate 831, a driving wheel 832, a driven wheel 833 and a conveyor belt 834. The mounting plate 831 is fixed on the support frame 81 and has a mounting hole. The transmission shaft 82 passes through the mounting hole and is rotatably connected thereto. The driving wheel 832 is fixed on the transmission shaft 82. The driven wheel 833 is rotatably connected to one end of the mounting plate 831 away from the mounting hole. The conveyor belt 834 is transmission-connected to the driving wheel 832 and the driven wheel 833.

[0064] In a specific embodiment of the present invention, the end of the conveyor belt 834 may correspond to the end of the conveyor belt conveying mechanism.

[0065] In a specific embodiment of the present invention, a plurality of driving wheels 832 are fixed on the transmission shaft 82 .

[0066] In a specific embodiment of the utility model, the belt conveyor assembly 83 also includes a connecting shaft 835 . A through hole is opened on the mounting plate 831 . The connecting shaft 835 passes through and is fixedly connected to the through hole. The driven wheel 833 is rotatably connected to the connecting shaft 835 .

[0067] In a specific embodiment of the present invention, a plurality of driven wheels 833 are rotatably connected to the connecting shaft 835 .

[0068] In a specific embodiment of the utility model, the storage and retrieval mechanism 8 also includes multiple groups of support wheel assemblies 84, each group of support wheel assemblies 84 is rotatably connected to the support frame 81 and arranged parallel to the conveyor belt 834, and the highest point of the support wheel assembly 84 is flush with the top surface of the conveyor belt 834.

[0069] In a specific embodiment of the utility model, the support wheel assembly 84 includes a plurality of guide wheels, which are arranged along the conveying direction of the conveyor belt 834 and rotatably connected to the support frame 81, and the highest points of the plurality of guide wheels are flush with the top surface of the conveyor belt 834.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A photovoltaic panel assembly storage rack, characterized in that: include: Lifting frame (1); A lifting mechanism (2), wherein the lifting mechanism (2) is installed on the lifting frame (1); A first rectangular frame (3), wherein the first rectangular frames (3) are multiple and arranged in parallel up and down, and two adjacent first rectangular frames (3) are connected by multiple telescopic connecting members (9) and a storage gap (4) is formed between them; A fixed connecting member (5), one end of which is fixedly connected to the lifting end of the lifting mechanism (2), and the other end of which is fixedly connected to the first rectangular frame (3) at the top.

2. A photovoltaic panel assembly storage rack according to claim 1, characterized in that: The fixed connection member (5) comprises two reinforcing plates (51), the inner side plate surfaces of the two reinforcing plates (51) being fixed to the two side edges of the first rectangular frame (3) at the top, and a plurality of second rectangular frames (6) arranged in parallel and spaced apart are fixed between the two reinforcing plates (51), a storage gap (7) is formed between the plurality of second rectangular frames (6), and the plurality of second rectangular frames (6) are located above the first rectangular frame (3) at the top.

3. A photovoltaic panel assembly storage rack according to claim 2, characterized in that: The lifting mechanism (2) comprises a lifting motor (21), a driving shaft (23) and two transmission components (22); the lifting motor (21) is fixed on the lifting frame (1); the driving shaft (23) is rotatably connected to the lifting frame (1) via a rotating connecting seat (24); the output shaft of the lifting motor (21) is transmission-connected to the driving shaft (23); and the two ends of the driving shaft (23) are transmission-connected to two reinforcement plates (51) via the two transmission components (22).

4. A photovoltaic panel assembly storage rack according to claim 3, characterized in that: The transmission assembly (22) comprises a driving sprocket (221), a driven sprocket (222) and a chain (223); the driving sprocket (221) is fixed to one end of the drive shaft (23); the driven sprocket (222) is mounted on the lifting frame (1) via a wheel frame (224); the chain (223) is transmission-connected to the driving sprocket (221) and the driven sprocket (222); and the reinforcing plate (51) is fixedly connected to the chain (223).

5. A photovoltaic panel assembly storage rack according to claim 4, characterized in that: The fixed connection member (5) further comprises two connection plates (52), wherein the two connection plates (52) are symmetrically fixed to the outer plate surface of the reinforcing plate (51), and the chain (223) is disconnected and its two disconnected ends are fixedly connected to the upper and lower end sides of the connection plates (52).

6. An automatic storage and retrieval device, characterized in that: It comprises a storage rack library as described in any one of claims 1 to 5 and a storage mechanism (8), wherein the storage mechanism (8) is installed on the lifting frame (1) and is located in the first rectangular frame (3), and the driving end of the storage mechanism (8) can correspond to the storage gap (4).

7. An automatic storage and retrieval device according to claim 6, characterized in that: The storage and retrieval mechanism (8) includes a support frame (81), a drive motor and a plurality of belt conveyor assemblies (83); the support frame (81) is fixed to the bottom of the lifting frame (1) and is located in the first rectangular frame (3); the drive motor is fixed on the support frame (81); the plurality of belt conveyor assemblies (83) are arranged in parallel and installed on the support frame (81); the drive motor is connected to the plurality of belt conveyor assemblies (83) through a transmission shaft (82).

8. An automatic storage and retrieval device according to claim 7, characterized in that: The belt conveyor assembly (83) comprises a mounting plate (831), a driving wheel (832), a driven wheel (833) and a conveyor belt (834); the mounting plate (831) is fixed on the support frame (81) and is provided with a mounting hole; the transmission shaft (82) passes through the mounting hole and is rotatably connected thereto; the driving wheel (832) is fixed on the transmission shaft (82); the driven wheel (833) is rotatably connected to one end of the mounting plate (831) away from the mounting hole; and the conveyor belt (834) is transmission-connected to the driving wheel (832) and the driven wheel (833).

9. An automatic storage and retrieval device according to claim 8, characterized in that: The belt conveyor assembly (83) further includes a connecting shaft (835); a through hole is provided on the mounting plate (831); the connecting shaft (835) passes through and is fixedly connected to the through hole; and the driven wheel (833) is rotatably connected to the connecting shaft (835).

10. An automatic storage and retrieval device according to claim 8 or 9, characterized in that: The storage and retrieval mechanism (8) further comprises a plurality of groups of support wheel assemblies (84), each group of the support wheel assemblies (84) being rotatably connected to the support frame (81) and arranged parallel to the conveyor belt (834), and the highest point of the support wheel assembly (84) being flush with the topmost surface of the conveyor belt (834).

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