Heavy-load friction accumulation roller way

Abstract

The utility model discloses a heavy-load friction power and free roller way, belongs to the technical field of battery pack transmission, and is designed for solving the problem that a heavy-load roller way is damaged due to continuous friction between a tray and a roller wheel. The utility model discloses a heavy-load friction power and free roller way which comprises a rail assembly. The driven roller assembly comprises a driven wheel shaft, a driven roller, a driven chain wheel, a first friction piece, a second friction piece and a friction force adjusting module, and the friction force adjusting module is used for adjusting the friction force value between the first friction piece and the second friction piece; the driving roller assembly comprises a driving wheel shaft, a driving roller and a driving chain wheel which can rotate synchronously, and the driving chain wheel is connected to the driven chain wheel through a chain; and a drive assembly directly or indirectly connected to the drive axle. According to the heavy-load friction accumulation roller way disclosed by the utility model, the driven roller stops rotating under the condition that the driving assembly does not stop rotating to form an automatic slipping state, so that the problem of continuous friction with the tray is solved, and the service life of the whole machine is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery pack transmission technical field especially relates to heavy load friction accumulation roller table. BACKGROUND

[0002] In the process of battery package assembly, it is usually necessary to use a transport device to convey the battery pack to each process station to perform the corresponding process. In order to reduce the cost and use more conveniently, some manufacturers use heavy load roller as the transport device.

[0003] The heavy load roller mainly includes a support and a row of rollers arranged on the support. The rollers can rotate around their own axes under the action of a driving device. The tray carrying the battery pack is placed on the rollers, and there is friction between the tray and the rollers. With the rotation of the rollers, the tray and the battery pack can be transported forward.

[0004] The defects of the existing heavy load roller include: when encountering a separator or a stopper, the tray is forcibly stopped, and at this time, the continuous friction between the tray and the rollers will cause damage to the heavy load roller, and even the service life of the heavy load roller may be shortened. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a heavy load friction accumulation roller table, which solves the problem of damage to the heavy load roller caused by continuous friction between the tray and the rollers, and prolongs the service life of the heavy load roller.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The heavy load friction accumulation roller table comprises: a track assembly; a driven roller assembly arranged on the track assembly, the driven roller assembly comprising a driven shaft, a driven roller, a driven sprocket, a first friction piece, a second friction piece and a friction force adjusting module, the driven roller being capable of rotating synchronously with the driven shaft, one of the first friction piece and the second friction piece being arranged on the driven shaft, the other of the first friction piece and the second friction piece being arranged on the driven sprocket, the friction force adjusting module being used to adjust the friction force value between the first friction piece and the second friction piece, the first friction piece and the second friction piece being capable of sliding relative to each other when the friction force acting on the driven roller is greater than a set value; a driving roller assembly arranged on the track assembly, the driving roller assembly comprising a driving shaft, a driving roller and a driving sprocket capable of rotating synchronously, the driving sprocket being connected to the driven sprocket through a chain; and a driving assembly directly or indirectly connected to the driven shaft to drive the driven shaft to rotate around its own axis.

[0008] In one preferred embodiment, the friction force adjusting module comprises an elastic member and a locking member, which are respectively sleeved on the driven wheel shaft, one end of the elastic member abuts on one of the first friction member and the second friction member, and the other end of the elastic member abuts on the locking member, the locking member is movable along the axis direction of the driven wheel shaft to change the extension length of the elastic member.

[0009] In one preferred embodiment, the track assembly comprises a U-shaped positioning groove, a positioning through hole is formed in the side wall of the positioning groove, and the driven roller and / or the driving roller is located in the positioning groove, and the driven wheel shaft and / or the driving wheel shaft is arranged in the positioning through hole.

[0010] In one preferred embodiment, the driven sprocket and / or the driving sprocket is arranged outside the positioning groove.

[0011] In one preferred embodiment, the heavy-load friction accumulation and release roller comprises at least two track assemblies, and all the track assemblies are arranged in sequence along the extension direction of the positioning groove.

[0012] In one preferred embodiment, the driven roller and / or the driving roller is equidistantly distributed in the positioning groove.

[0013] In one preferred embodiment, the track assembly comprises two parallel positioning grooves, the driven roller assembly is arranged in each of the two positioning grooves, and the driven roller assemblies in the two positioning grooves are connected through a connecting shaft structure; and / or the driving roller assembly is arranged in each of the two positioning grooves, and the driving roller assemblies in the two positioning grooves are connected through a connecting shaft structure.

[0014] In one preferred embodiment, a friction bushing made of non-metallic material is sleeved on the driving wheel shaft, and the driving roller is sleeved on the outside of the friction bushing.

[0015] In one preferred embodiment, the track assembly comprises two parallel positioning grooves, a connecting member is arranged between the two positioning grooves, and the heavy-load friction accumulation and release roller further comprises an auxiliary support assembly, which is located between the two positioning grooves and parallel to the positioning grooves.

[0016] In one preferred embodiment, the heavy-load friction accumulation and release roller further comprises a support base and a foundation, the track assembly is connected to the support base, and the support base is fixedly connected to the base surface through the foundation.

[0017] The utility model discloses heavy load friction accumulates and puts the roller bed, utilizes chain to be transmitted to driving sprocket with the rotation on driven sprocket, and transmission is more stable, and the response speed of driving sprocket to driven sprocket is faster, and the tray of bearing battery pack can be placed on driven roller and driving roller, along with the rotation of driven roller and driving roller, and battery pack is transmitted to target process position, and transmission is fast and position is accurate, and the processing efficiency of battery pack is improved, when the tray of bearing battery pack on driven roller is stopped by separator or stopper and is blocked, and driven roller continues to roll and will rub with the tray, and this friction will form reaction force on driven roller, when the reaction force is greater than the friction between first friction piece and second friction piece, and relative rotation will occur between first friction piece and second friction piece, and driven wheel shaft stops rotating under the condition that driving assembly does not stop, forms automatic skidding state, solves the problem that driven roller and tray rub continuously, prolongs the service life of complete machine, and the manufacturing cost is low, and the operation noise is small, and maintenance is simple. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structural schematic diagram of heavy load friction accumulates and puts the roller bed provided by the utility model specific embodiment,

[0019] Figure 2 It is the structural schematic diagram of driven roller assembly provided by the utility model specific embodiment,

[0020] Figure 3 It is the structural schematic diagram of driving roller assembly provided by the utility model specific embodiment,

[0021] Figure 4 It is the structural schematic diagram of track assembly provided by the utility model specific embodiment,

[0022] Figure 5 It is the structural schematic diagram of auxiliary support assembly provided by the utility model specific embodiment,

[0023] Figure 6 It is the structural schematic diagram of driving assembly provided by the utility model specific embodiment,

[0024] Figure 7 It is the structural schematic diagram of connecting shaft structure provided by the utility model specific embodiment,

[0025] Figure 8 It is the combined structural schematic diagram of support seat and foot provided by the utility model specific embodiment.

[0026] In the drawing,

[0027] 1, track assembly; 2, driven roller assembly; 3, driving roller assembly; 4, driving assembly; 5, connecting shaft structure; 6, auxiliary support assembly; 7, support seat; 8, ground foot; 11, positioning groove; 12, positioning through hole; 13, connecting piece; 14, protective cover; 21, driven axle; 22, driven roller; 23, driven sprocket; 24, first friction piece; 25, second friction piece; 26, elastic piece; 27, locking piece; 31, driving axle; 32, driving roller; 33, driving sprocket; 34, friction bushing; 41, driving device; 42, shaft coupling; 51, connecting shaft body; 52, universal shaft coupling; 61, U-shaped groove; 62, auxiliary roller; 63, auxiliary axle. DETAILED DESCRIPTION

[0028] In order to make the above objectives, characteristics and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without using these specific details. In other instances, well-known methods have not been described in detail in order to avoid unnecessarily obscuring the present application. Therefore, the specific embodiments of the present application as set forth are not intended to limit the present application, but to elucidate the practical application of the same.

[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0030] In addition, the terms "first", "second", "third" and the like are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can include at least one of the features explicitly or implicitly. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0034] This embodiment discloses a heavy-duty friction accumulation roller conveyor, which can be used, but is not limited to, for transferring battery packs of new energy vehicles between various process positions to complete the assembly of the battery packs. Figures 1 to 8 As shown, the heavy-duty friction accumulation roller conveyor includes a track assembly 1, a driven roller assembly 2, a driving roller assembly 3, and a drive assembly 4. The driven roller assembly 2 and the driving roller assembly 3 are respectively mounted on the track assembly 1.

[0035] Driven roller assembly 2 includes driven wheel shaft 21, driven roller 22, driven sprocket 23, first friction element 24, second friction element 25, and friction adjustment module. Driven roller 22 can rotate synchronously with driven wheel shaft 21. Driven roller assembly 3 includes drive wheel shaft 31, drive roller 32, and drive sprocket 33, which can rotate synchronously. Drive assembly 4 is directly or indirectly connected to drive wheel shaft 31 to drive drive wheel shaft 31 to rotate around its own axis.

[0036] The driving sprocket 33 is connected to the driven sprocket 23 through a chain, the driven sprocket 23 can rotate synchronously with the driving sprocket 33, so as to realize the driving assembly 4 driving the driving axle 31 and the driven axle 21 to rotate synchronously. A plurality of battery pack bearing trays are placed on the driven roller 22 and the driving roller 32 respectively, and the battery pack is transmitted to the target process position with the rotation of the driving roller 32 and the driven roller 22, the transmission is fast and accurate in position, and the processing efficiency of the battery pack is improved. The rotation of the driving sprocket 33 is transmitted to the driven sprocket 23 through the chain, the transmission is more stable, and the response speed of the driven sprocket 23 to the driving sprocket 33 is faster.

[0037] One of the first friction piece 24 and the second friction piece 25 is arranged on the driven axle 21, and the other of the first friction piece 24 and the second friction piece 25 is arranged on the driven sprocket 23. The friction force between the first friction piece 24 and the second friction piece 25 can be adjusted by adjusting the friction force adjusting module, so that the roller has the accumulation and transmission function. Specifically, when the battery pack bearing tray located on the driven roller 22 is blocked and stopped by the separator or the stopper, the driven roller 22 continues to roll and will rub with the tray. The friction will form a reaction force on the driven roller 22. When the reaction force is greater than the friction force between the first friction piece 24 and the second friction piece 25, the first friction piece 24 and the second friction piece 25 will rotate relatively. In the case that the driving assembly 4 does not stop rotating, the driven sprocket 23 cannot continue to drive the driven axle 21 to rotate, and the driven roller 22 also stops rotating, forming an automatic slipping state, solving the problem of continuous friction with the tray, prolonging the service life of the whole machine, reducing the manufacturing cost, reducing the running noise, and being easy to maintain and replace.

[0038] When the weight is less than 2000Kg / m, the maximum conveying speed of the heavy load friction accumulation and conveying roller can reach 18m / min, and the tray conveying is more stable and efficient. The load capacity of 2000Kg / m makes the heavy load friction accumulation and conveying roller have a wider application range and more competitive products.

[0039] The specific structure of the friction force adjusting module is not limited, and the friction force value between the first friction member 24 and the second friction member 25 can be adjusted. In the embodiment, the friction force adjusting module includes an elastic member 26 and a locking member 27 which are respectively sleeved on the driven wheel shaft 21. One end of the elastic member 26 abuts against one of the first friction member 24 and the second friction member 25, and the other end of the elastic member 26 abuts against the locking member 27. The locking member 27 can move along the axis direction of the driven wheel shaft 21 to change the extension length of the elastic member 26. The elastic member 26 can be, but is not limited to, a spring, and the locking member 27 can be, but is not limited to, a locking nut. The end of the driven wheel shaft 21 is provided with an external thread matched with the locking nut. Rotating the locking nut can make it move along the axis direction of the driven wheel shaft 21, thereby changing the elastic length of the spring. The shorter the elastic length is, the greater the elastic force on the spring is, the tighter the first friction member 24 and the second friction member 25 are pressed against each other, and the greater the friction force between the first friction member 24 and the second friction member 25 is. Correspondingly, the force that can make the first friction member 24 and the second friction member 25 rotate relative to each other is also greater.

[0040] The specific shape of the first friction member 24 and the second friction member 25 is not limited, which can be in the form of a sheet, saving space and convenient to process. In the embodiment, a set of the first friction member 24 and the second friction member 25 are respectively arranged at the two ends of the driven sprocket 23, and the stress is more balanced. One of the first friction member 24 and the second friction member 25 is fixedly connected with the driven sprocket 23 through buckling, which can prevent slipping and can withstand greater torsional force; the other of the first friction member 24 and the second friction member 25 is fixedly connected with the driven wheel shaft 21.

[0041] When the friction force on the driven roller 22 from the tray is less than or equal to the friction force between the first friction member 24 and the second friction member 25, the first friction member 24 and the second friction member 25 rotate synchronously, the driving assembly 4 can drive the driven wheel shaft 21 to rotate through the driving shaft 31, the driving sprocket 33, the chain and the driven sprocket 23, and the driven roller 22 rotates synchronously with the driven wheel shaft 21, and the tray is normally transported; when the tray is blocked and the friction force on the driven roller 22 from the tray is greater than the friction force between the first friction member 24 and the second friction member 25, the first friction member 24 and the second friction member 25 rotate relative to each other (i.e. slip), the driven sprocket 23 cannot continue to drive the driven wheel shaft 21 to rotate, and the driven roller 22 stops rotating synchronously, thereby avoiding the friction between the driven roller 22 and the tray.

[0042] As Figures 2 to 4As shown, the track assembly 1 comprises a U-shaped positioning groove 11, and a positioning through hole 12 is formed in the side wall of the positioning groove 11. The driven roller 22 and / or the driving roller 32 is located in the positioning groove 11, and the driven shaft 21 and / or the driving shaft 31 passes through the positioning through hole 12. The driven roller 22 rotates around the axis of the driven shaft 21, and the driving roller 32 rotates around the axis of the driving shaft 31, so as to move the tray along the extension direction of the positioning groove 11.

[0043] In order to protect the positioning groove 11, a protective cover 14 is arranged outside the positioning groove 11. In the embodiment, the protective cover 14 is a columnar structure or a cylindrical structure with a rectangular cross section, and has high structural strength. The protective cover 14 is tightly arranged on the outer wall surface of the positioning groove 11, so as to effectively improve the strength of the outer wall surface of the positioning groove 11, avoid the positioning groove 11 from being impacted by an object from the outside, and make the use safer.

[0044] On the basis of the above structure, the driven sprocket 23 and / or the driving sprocket 33 is arranged outside the positioning groove 11, and the chain can be conveniently connected between the driven sprocket 23 and the driving sprocket 33, so as to make the transmission more stable. Along the length direction of the positioning groove 11, the driven roller 22 and / or the driving roller 32 is equidistantly distributed in the positioning groove 11, so as to make the force on the tray more uniform and the tray transmission more stable.

[0045] The driven roller assembly 2 and the driving roller assembly 3 further comprise a bearing, a retainer, a positioning sheet and the like structures, and various structures for fixing the rotating shaft and the roller in the prior art can be used, which will not be described herein.

[0046] When the position to be transmitted by the tray is relatively far, the heavy-load friction accumulation roller bed comprises at least two track assemblies 1, and all the track assemblies 1 are sequentially and lap-jointedly arranged along the extension direction of the positioning groove 11. After the at least two track assemblies 1 are sequentially and lap-jointedly arranged, a longer track is formed, which is more convenient to use and has a wider application range.

[0047] On the basis of the above structure, as shown in Figs. Figure 1 , Figure 4 and Figure 7 , the track assembly 1 comprises two parallel positioning grooves 11, the driving roller assembly 3 is arranged in each positioning groove 11, the driving roller assemblies 3 in the two positioning grooves 11 are connected through the connecting shaft structure 5, the driven roller assembly 2 is arranged in each positioning groove 11, and the driven roller assemblies 2 in the two positioning grooves 11 are connected through the connecting shaft structure 5. The driving assembly 4 is connected to the driving roller assembly 3 in one positioning groove 11, and the driving roller assembly 3 can drive the driving roller assembly 32 on the other side to rotate through the connecting shaft structure 5.

[0048] Specifically, the connecting shaft structure 5 comprises a connecting shaft body 51 and two universal couplings 52, the two universal couplings 52 are arranged at two ends of the connecting shaft body 51, and the universal couplings 52 are used for connecting the corresponding side driven roller assembly 2 and the driving roller assembly 3. As shown in Figure 6 The driving assembly 4 comprises a driving device 41 and a coupling 42, and the driving device 41 is connected to the driving roller assembly 3 or the connecting shaft structure 5 through the coupling 42.

[0049] In order to improve the wear resistance, as shown in Figure 3 A friction bushing 34 made of non-metallic material is sleeved on the driving axle 31, and the driving roller 32 is sleeved on the outside of the friction bushing 34. That is, the driving axle 31, the friction bushing 34 and the driving roller 32 are sequentially sleeved from inside to outside in the radial direction, which can reduce the wear of the driving roller 32 and prolong the service life of the whole machine.

[0050] As shown in Figure 1 and Figure 4 The track assembly 1 comprises two parallel positioning grooves 11, and a connecting piece 13 is arranged between the two positioning grooves 11 to form a H-shaped structure. The distance between the two positioning grooves 11 is not limited and can be determined according to the width of the pallet to be conveyed. When the span between the two positioning grooves 11 is large, the heavy-load friction accumulation roller way further comprises an auxiliary support assembly 6 which is located between the two positioning grooves 11 and parallel to the positioning grooves 11. The auxiliary support assembly 6 can support the pallet from the middle, so that the pallet is more stable during transportation and deformation of the pallet is avoided.

[0051] The specific structure of the auxiliary support assembly 6 is not limited, and in the embodiment, as shown in Figure 5 The auxiliary support assembly 6 comprises a U-shaped groove 61, an auxiliary roller 62 and an auxiliary axle 63, the auxiliary roller 62 is located in the U-shaped groove 61, and the auxiliary roller 62 can rotate under the action of the friction force of the pallet and will not hinder the normal transportation of the pallet. A through hole is formed in the side wall of the U-shaped groove 61, and the auxiliary axle 63 is arranged in the through hole.

[0052] The auxiliary support assembly 6 is preferably made of an integral profile, and at least one auxiliary roller 62 is arranged in the U-shaped groove 61. When two or more auxiliary rollers 62 are arranged in the U-shaped groove 61, all the auxiliary rollers 62 are distributed at equal intervals, and the stress on the pallet is more balanced. The auxiliary support assembly 6 can further be provided with a retaining ring, a bearing and other structures, and structures in the prior art which can improve the structural stability and running stability of the auxiliary support assembly 6 can be used.

[0053] In order to ensure the normal installation height of the roller way, as shown in Figure 1 and Figure 8As shown, the heavy-load friction accumulation roller bed further comprises a support base 7 and a ground foot 8. The track assembly 1 is connected to the support base 7, and the support base 7 is fixedly connected to the base surface (for example, the ground of the work site) through the ground foot 8. The side surface of the support base 7 is provided with a wire slot mounting bracket, which facilitates integrated wiring of the system and makes the wiring more stable.

[0054] In the embodiment, the support base 7 is of a frame structure, has higher overall strength, is convenient to process, and is more accurate in height value control. At least two support bases 7 are arranged in the direction extending along the track assembly 1, so as to ensure that the spatial posture of the track assembly 1 is more stable.

[0055] It should be noted that the above is only a preferred embodiment of the present application and the technical principles used. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, re-adjustments and substitutions without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A heavy-duty friction accumulation roller bed, characterized in that, Comprise: A track assembly (1); A driven roller assembly (2) arranged on the track assembly (1), the driven roller assembly (2) comprising a driven shaft (21), a driven roller (22), a driven sprocket (23), a first friction piece (24), a second friction piece (25) and a friction force adjusting module, the driven roller (22) can rotate synchronously with the driven shaft (21), one of the first friction piece (24) and the second friction piece (25) is arranged on the driven shaft (21), the other of the first friction piece (24) and the second friction piece (25) is arranged on the driven sprocket (23), the friction force adjusting module is used to adjust the friction force value between the first friction piece (24) and the second friction piece (25), when the friction force on the driven roller (22) is greater than a set value, the first friction piece (24) and the second friction piece (25) can rotate relative to each other; A driving roller assembly (3) arranged on the track assembly (1), the driving roller assembly (3) comprising a driving shaft (31), a driving roller (32) and a driving sprocket (33) which can rotate synchronously, the driving sprocket (33) is connected to the driven sprocket (23) through a chain; and A driving assembly (4) directly or indirectly connected to the driving shaft (31) to drive the driving shaft (31) to rotate around its axis.

2. The heavy-duty friction accumulation roller bed of claim 1, wherein, The friction force adjusting module comprises an elastic piece (26) and a locking piece (27) respectively sleeved on the driven shaft (21), one end of the elastic piece (26) abuts on one of the first friction piece (24) and the second friction piece (25), the other end of the elastic piece (26) abuts on the locking piece (27), the locking piece (27) can move along the axis direction of the driven shaft (21) to change the extension length of the elastic piece (26).

3. The heavy-duty friction accumulation roller bed of claim 1, wherein, The track assembly (1) comprises a U-shaped positioning groove (11), a positioning through hole (12) is formed in the side wall of the positioning groove (11), the driven roller (22) and / or the driving roller (32) is located in the positioning groove (11), and the driven shaft (21) and / or the driving shaft (31) is arranged in the positioning through hole (12).

4. The heavy-duty friction accumulation roller bed of claim 3, wherein, The driven sprocket (23) and / or the driving sprocket (33) is arranged outside the positioning groove (11).

5. The heavy-duty friction accumulation roller bed of claim 3, wherein, The heavy load friction accumulation roller comprises at least two track assemblies (1), and all the track assemblies (1) are arranged in sequence along the extension direction of the positioning groove (11).

6. The heavy-duty friction accumulation roller bed of claim 3, wherein, The driven roller (22) and / or the driving roller (32) is equally distributed in the positioning groove (11).

7. A heavy-duty friction accumulation roller bed according to any one of claims 1 to 6, characterized in that The track assembly (1) comprises two parallel positioning grooves (11), the driven roller assembly (2) is arranged in each positioning groove (11), and the driven roller assemblies (2) in the two positioning grooves (11) are connected through a connecting shaft structure (5); and / or, The driving roller assembly (3) is arranged in each positioning groove (11), and the driving roller assemblies (3) in the two positioning grooves (11) are connected through a connecting shaft structure (5).

8. A heavy-duty friction accumulation roller bed according to any one of claims 1 to 6, characterized in that A friction bushing (34) made of non-metallic material is sleeved on the driving axle (31), and the driving roller (32) is sleeved on the outer side of the friction bushing (34).

9. A heavy-duty friction accumulation roller bed according to any one of claims 1 to 6, characterized in that The track assembly (1) comprises two parallel positioning grooves (11), and a connecting piece (13) is arranged between the two positioning grooves (11); the heavy-load friction accumulation and release roller further comprises an auxiliary support assembly (6), which is located between the two positioning grooves (11) and parallel to the positioning grooves (11).

10. A heavy-duty friction accumulation roller bed according to any one of claims 1 to 6, characterized in that The heavy-load friction accumulation and release roller further comprises a support base (7) and a ground foot (8), the track assembly (1) is connected to the support base (7), and the support base (7) is fixedly connected to a base surface through the ground foot (8).

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