Cantilever roller structure assembly

Abstract

The utility model provides a cantilever roller structure assembly which comprises a motor, a reduction gearbox and a cantilever roller which are sequentially connected, the periphery of the cantilever roller is sleeved with a bearing seat, the bottom of the bearing seat is connected with a base, a buffer assembly comprises an extension frame, a connecting piece and a first elastic piece, the extension frame is connected to the bearing seat, the connecting piece is connected to the reduction gearbox, and the first elastic piece is connected to the bearing seat. The first elastic piece is arranged on the connecting piece and located between the extending frame and the reduction gearbox in the horizontal direction, and a damping base is connected to the bottom of the reduction gearbox. According to the cantilever roller structure assembly, elastic connection is formed between the bearing seat and the reduction gearbox through the extension frame and the first elastic piece, the horizontal swing amplitude of the cantilever roller when the cantilever roller is impacted can be buffered, the stability of the cantilever roller structure assembly is improved, the reduction gearbox is effectively supported and buffered through the damping seat, and the service life of the cantilever roller structure assembly is prolonged. Damage of vibration impact to the cantilever roller structure assembly is greatly reduced, the service life is effectively prolonged, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel rolling equipment, and in particular relates to a cantilever roller structure assembly. Background Art

[0002] Before rolling, steel billets must be heated to the appropriate temperature in a heating furnace. A cantilever roller conveyor is a common structure for conveying billets within the furnace. Its structural characteristics are that the supporting elements (bearing supports) and the transmission elements (motor reducer) of the rollers are located on the same side of the roller conveyor. During operation, only the rollers are located inside the furnace, while the supporting and transmission elements are located outside to avoid high temperatures and ensure optimal performance. This structure makes cantilever roller conveyors widely used for conveying billets during side-entry and side-exit of a furnace.

[0003] However, due to the large temperature difference between the inlet and outlet of the billet, cold air is easily sucked back, creating an oxidizing atmosphere. The environment is very harsh, requiring a high level of stable operation of the cantilever roller. In addition, the frequent impact of the billet during steel feeding causes increased vibration of the cantilever roller and the motor reducer, which can cause serious damage to the motor reducer and other equipment. In the existing technology, the speed reducer is suspended, and rubber pads are added to the bottom of the speed reducer to provide cushioning. However, this cushioning effect is limited. The high ambient temperature causes the rubber to age rapidly, resulting in a short service life and the need for frequent replacement, which increases maintenance time and labor costs, affecting production efficiency. Utility Model Content

[0004] The embodiment of the utility model provides a cantilever roller structure assembly, which can effectively buffer the swing amplitude of the cantilever roller when it is impacted, reduce the damage to the cantilever roller structure assembly caused by vibration impact, effectively extend the service life, and improve production efficiency.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a cantilever roller structure assembly, including a motor, a reduction gear and a cantilever roller connected in sequence, the outer peripheral sleeve of the cantilever roller is provided with a bearing seat, the bottom of the bearing seat is connected to a base, a buffer assembly is connected between the bearing seat and the reduction gear, the buffer assembly includes an extension frame, a connecting member and a first elastic member, the extension frame is connected to the bearing seat, the connecting member is connected to the reduction gear, the first elastic member is arranged on the connecting member, and in the horizontal direction the first elastic member is located between the extension frame and the reduction gear, the bottom of the reduction gear is connected to a shock absorber seat, and the shock absorber seat is spaced apart from the base.

[0006] As another embodiment of the present invention, a mounting plate is provided on the side of the reducer close to the cantilever roller, and the connecting member includes a connecting bolt horizontally connected to the mounting plate and a nut threadedly sleeved on the outer periphery of the connecting bolt, the central axis of the connecting bolt is arranged perpendicular to the central axis of the cantilever roller, the first elastic member is sleeved on the outer periphery of the connecting bolt, and the extension frame abuts against the outer side of the first elastic member.

[0007] As another embodiment of the present invention, the extension frame includes a vertical pole connected to the top of the bearing seat and two support rods connected to the upper end of the vertical pole. The two support rods are respectively located on both sides of the mounting vertical plate, and the outer ends of the support rods are slidably sleeved on the outer periphery of the connecting bolts. There are two first elastic members, and they are respectively located one-to-one between the support rods and the mounting vertical plate.

[0008] As another embodiment of the present invention, the buffer assembly also includes two second elastic members respectively sleeved on the outer periphery of the connecting bolt, the two second elastic members are respectively located on the opposite sides of the two support rods, and the second elastic members are located between the bolt head of the connecting bolt and the support rod or between the nut and the support rod.

[0009] As another embodiment of the present invention, the upper end of the vertical pole is connected to a U-shaped arc plate, and two support rods are connected to the two ends of the U-shaped arc plate in a one-to-one correspondence.

[0010] As another embodiment of the present invention, the shock absorber seat includes a supporting seat body, a shock absorber rod connected to the bottom of the reduction gearbox, and a shock absorber tube located in the supporting seat body. The shock absorber rod extends in the up and down directions, and the shock absorber tube is slidably sleeved on the outer periphery of the shock absorber rod. The outer periphery of the shock absorber rod is sleeved with a third elastic member, and the third elastic member is connected between the shock absorber tube and the shock absorber rod.

[0011] As another embodiment of the present invention, the upper end of the shock-absorbing cylinder is connected to a sealing cover, and the lower end of the shock-absorbing cylinder is connected to a transition block. The shock-absorbing rod is arranged to pass through the sealing cover and the transition block and to slide with the sealing cover and the transition block respectively. The outer periphery of the shock-absorbing rod is provided with a protruding retaining ring, which is slidably connected to the shock-absorbing cylinder. There are two third elastic members, which are respectively located between the retaining ring and the sealing cover and between the retaining ring and the transition block.

[0012] As another embodiment of the present invention, the supporting seat body is connected to two guide rods which are respectively arranged to pass through the transition block along the main axis direction perpendicular to the cantilever roller. The two guide rods are respectively located on both sides of the shock-absorbing rod. The guide rods are slidably fitted with the transition block, and the outer periphery of the guide rods is provided with a fourth elastic member located between the inner cavity wall of the supporting seat body and the transition block.

[0013] As another embodiment of the present invention, the cantilever roller structure assembly also includes a support seat located below the shock absorber seat, the support seat includes a base plate, a support vertical plate connected above the base plate, and a horizontal support plate connected above the support vertical plate, and the supporting seat body is connected above the horizontal support plate.

[0014] As another embodiment of the present invention, the upper end of the shock-absorbing rod is connected to a horizontally extending mounting circular plate, and the mounting circular plate is detachably connected to the reduction gear box.

[0015] The beneficial effect of the cantilever roller structure assembly provided by the utility model is that: compared with the existing technology, the cantilever roller structure assembly of the utility model forms an elastic connection between the bearing seat and the reduction gear box through the extension frame and the first elastic member, which can buffer the horizontal swing amplitude of the cantilever roller when it is impacted, thereby increasing the stability of the cantilever roller structure assembly. At the same time, the shock-absorbing seat at the bottom of the reduction gear box is used to effectively support and buffer the reduction gear box, greatly reducing the damage to the cantilever roller structure assembly caused by vibration impact, effectively extending the service life, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 A schematic diagram of the main structure of the cantilever roller structure assembly provided by an embodiment of the present utility model;

[0018] Figure 2 A schematic diagram of the three-dimensional structure of the cantilever roller structure assembly provided by an embodiment of the utility model;

[0019] Figure 3 For the embodiment of the utility model Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0020] Figure 4 For the embodiment of the utility model Figure 2 A schematic diagram of the enlarged structure of the middle B part;

[0021] Figure 5 This is a schematic cross-sectional structural diagram of the shock-absorbing seat provided in an embodiment of the utility model.

[0022] Among them, the reference numerals in the figures are:

[0023] 1. Motor; 2. Gearbox; 21. Mounting plate; 22. Connecting bolts; 23. Nuts; 3. Cantilever roller; 4. Bearing seat; 5. Base; 6. Buffer assembly; 61. Extension frame; 611. Vertical pole; 612. Support rod; 613. U-shaped arc plate; 62. First elastic member; 63. Second elastic member; 7. Support seat; 71. Bottom plate; 72. Supporting plate; 73. Horizontal support plate; 8. Shock-absorbing seat; 81. Shock-absorbing rod; 811. Retaining ring; 812. Mounting circular plate; 82. Support seat body; 83. Shock-absorbing cylinder; 831. Cover; 832. Transition block; 84. Third elastic member; 85. Guide rod; 86. Fourth elastic member. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or indirectly on the other element. It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0026] Please also refer to Figures 1 to 5 The cantilever roller structure assembly provided by the present invention is now described. The cantilever roller structure assembly includes a motor 1, a reduction gearbox 2, and a cantilever roller 3 connected in sequence. The outer periphery of the cantilever roller 3 is provided with a bearing seat 4, the bottom of the bearing seat 4 is connected to a base 5, and a buffer assembly 6 is connected between the bearing seat 4 and the reduction gearbox 2. The buffer assembly 6 includes an extension frame 61, a connecting member, and a first elastic member 62. The extension frame 61 is connected to the bearing seat 4, the connecting member is connected to the reduction gearbox 2, and the first elastic member 62 is arranged on the connecting member and is horizontally located between the extension frame 61 and the reduction gearbox 2. The bottom of the reduction gearbox 2 is connected to a shock absorber seat 8, which is spaced apart from the base 5.

[0027] Compared with the prior art, the cantilever roller 3 structural assembly provided in this embodiment forms an elastic connection between the bearing seat 4 and the reduction gear box 2 through the extension frame 61 and the first elastic member 62, which can buffer the horizontal swing amplitude of the cantilever roller 3 when it is impacted, thereby increasing the stability of the cantilever roller 3 structural assembly. At the same time, the shock-absorbing seat 8 at the bottom of the reduction gear box 2 is used to effectively support and buffer the reduction gear box 2, greatly reducing the damage to the cantilever roller 3 structural assembly caused by vibration impact, effectively extending the service life, and improving production efficiency.

[0028] In this embodiment, the first elastic member 62 is made of high-temperature-resistant, highly elastic rubber. This member maintains excellent elasticity even under high temperatures, maintaining its shock and vibration absorption function and extending the service life of the buffer assembly 6. The provision of the shock-absorbing seat 8 provides elastic support for the reduction gearbox 2, reducing the vibration amplitude of the suspended motor 1 reduction gearbox 2 and effectively protecting the motor 1 and other equipment.

[0029] As a specific embodiment of the cantilever roller structure assembly provided by the utility model, see Figure 2 and Figure 3 A mounting plate 21 is provided on the side of the reducer 2 close to the cantilever roller 3. The connecting part includes a connecting bolt 22 horizontally connected to the mounting plate 21 and a nut 23 threadedly sleeved on the outer periphery of the connecting bolt 22. The central axis of the connecting bolt 22 is arranged perpendicular to the central axis of the cantilever roller 3. The first elastic member 62 is sleeved on the outer periphery of the connecting bolt 22, and the extension frame 61 abuts against the outer side of the first elastic member 62.

[0030] In this embodiment, the first elastic member 62 is a cylindrical component made of high-temperature-resistant, highly elastic rubber. It is connected to the mounting plate 21 of the reduction gearbox 2 using connecting bolts 22 and nuts 23. The extension frame 61 is located outside the first elastic member 62. This structure, through the first elastic member 62, creates elastic contact between the bearing seat 4 and the reduction gearbox 2, effectively absorbing horizontal vibrations of the reduction gearbox 2. This reduces the amplitude of the reduction gearbox 2's swing when it vibrates with the cantilever roller 3, thereby protecting the motor 1 and the reduction gearbox 2.

[0031] As a specific embodiment of the cantilever roller structure assembly provided by the utility model, see Figure 3 The extension frame 61 includes a vertical rod 611 connected to the top of the bearing seat 4 and two support rods 612 connected to the upper end of the vertical rod 611. The two support rods 612 are respectively located on both sides of the mounting plate 21, and the outer ends of the support rods 612 are slidably sleeved on the outer periphery of the connecting bolt 22. There are two first elastic members 62, and they are respectively located between the support rods 612 and the mounting plate 21 in a one-to-one correspondence.

[0032] In this embodiment, the connecting bolt 22 passes through two support rods 612 and two first elastic members 62. The two first elastic members 62 are respectively located on both sides of the mounting plate 21. The two support rods 612 are located one-to-one on the outside of the two first elastic members 62, providing a two-way buffering effect for the horizontal swing of the reduction gearbox 2. The cooperation of the two support rods 612 and the two first elastic members 62 is conducive to maintaining a balanced state between the reduction gearbox 2 and the cantilever roller 3, making the vibration impact distribution more uniform.

[0033] As a specific embodiment of the cantilever roller structure assembly provided by the utility model, see Figure 3The buffer assembly 6 also includes two second elastic members 63 respectively sleeved on the outer periphery of the connecting bolt 22, the two second elastic members 63 are respectively located on the opposite sides of the two support rods 612, and the second elastic members 63 are located between the bolt head of the connecting bolt 22 and the support rod 612 or between the nut 23 and the support rod 612.

[0034] In this embodiment, the second elastic member 63 is made of the same material as the first elastic member 62, namely, high-temperature resistant high-elastic rubber. The structural dimensions of the second elastic member 63 may be different from those of the first elastic member 62 according to actual installation requirements.

[0035] Specifically, the connecting bolts 22 are hexagonal head bolts. On one side of the mounting plate 21, from inside to outside, the connecting bolts 22 sequentially penetrate the first elastic member 62, the support rod 612, and the second elastic member 63, with the outermost edge being blocked by the hexagonal bolt head of the connecting bolt 22. On the other side of the mounting plate 21, from inside to outside, the connecting bolts 22 sequentially penetrate the first elastic member 62, the support rod 612, and the second elastic member 63, with the outermost edge being blocked by the nut 23. This structure ensures that both sides of each support rod 612 abut against the first elastic member 62 and the second elastic member 63, enhancing the cushioning effect.

[0036] Furthermore, circular washers are provided between the bolt head of the connecting bolt 22 and the second elastic member 63 and between the nut 23 and the second elastic member 63, which can increase the pressure contact area, help to evenly distribute the pressure on the second elastic member 63, and extend its service life.

[0037] As a specific embodiment of the cantilever roller structure assembly provided by the utility model, see Figure 3 The upper end of the vertical rod 611 is connected to a U-shaped arc plate 613, and the two support rods 612 are connected to the two ends of the U-shaped arc plate 613 in a one-to-one correspondence.

[0038] In this embodiment, the two support rods 612 and the U-shaped arc plate 613 together form a U-shaped fork structure. The setting of the U-shaped arc plate 613 makes the above-mentioned U-shaped fork structure itself have a certain elasticity, which can attenuate the transmitted vibration impact. At the same time, combined with the setting of the first elastic member 62 and the second elastic member 63, it helps to enhance the elastic buffering effect.

[0039] As a specific embodiment of the cantilever roller structure assembly provided by the utility model, see Figure 2 、 Figure 4 and Figure 5The shock-absorbing seat 8 includes a supporting seat body 82, a shock-absorbing rod 81 connected to the bottom of the reduction gearbox 2, and a shock-absorbing tube 83 located in the supporting seat body 82. The shock-absorbing rod 81 extends in the up and down directions. The shock-absorbing tube 83 is slidably mounted on the outer periphery of the shock-absorbing rod 81. The outer periphery of the shock-absorbing rod 81 is sleeved with a third elastic member 84, and the third elastic member 84 is connected between the shock-absorbing tube 83 and the shock-absorbing rod 81.

[0040] In this embodiment, when the reduction gear box 2 is impacted and vibrates up and down, the shock-absorbing rod 81 moves up and down along the shock-absorbing cylinder 83, thereby compressing or stretching the third elastic member 84. The third elastic member 84 elastically deforms to generate a reverse thrust to prevent the shock-absorbing rod 81 from moving, thereby buffering the up and down vibration of the reduction gear box 2.

[0041] Specifically, the third elastic member 84 is a high-strength spring.

[0042] As a specific embodiment of the cantilever roller structure assembly provided by the utility model, see Figure 5 The upper end of the shock-absorbing cylinder 83 is connected to the cover 831, and the lower end of the shock-absorbing cylinder 83 is connected to the transition block 832. The shock-absorbing rod 81 passes through the cover 831 and the transition block 832 and slides with the cover 831 and the transition block 832 respectively. The outer periphery of the shock-absorbing rod 81 is provided with a protruding retaining ring 811, and the retaining ring 811 is slidably connected to the shock-absorbing cylinder 83. There are two third elastic members 84, which are respectively located between the retaining ring 811 and the cover 831 and between the retaining ring 811 and the transition block 832.

[0043] In this embodiment, the shock-absorbing rod 81 slides with the cover 831 and the transition block 832 respectively, ensuring that the shock-absorbing rod 81 maintains linear motion during the sliding process, thereby reducing deflection and wear.

[0044] Specifically, when the shock-absorbing rod 81 moves downward with the vibration of the reduction gear box 2, the upper third elastic member 84 is stretched and the lower third elastic member 84 is compressed, jointly resisting the downward movement of the shock-absorbing rod 81; similarly, when the shock-absorbing rod 81 moves upward with the vibration of the reduction gear box 2, the upper third elastic member 84 is compressed and the lower third elastic member 84 is stretched, jointly resisting the upward movement of the shock-absorbing rod 81, thereby improving the shock-absorbing effect of the shock-absorbing seat 8 on the reduction gear box 2.

[0045] In another feasible embodiment, in order to simplify the installation, the two ends of the third elastic member 84 may only be in contact with the cover 831 or the transition block 832 and the retaining ring 811 instead of being fixedly connected. In this case, when the shock-absorbing rod 81 moves downward, the third elastic member 84 below is compressed, and when the shock-absorbing rod 81 moves upward, the third elastic member 84 above is compressed, which can also achieve a shock-absorbing effect.

[0046] As a specific embodiment of the cantilever roller structure assembly provided by the utility model, see Figure 4 and Figure 5 The supporting seat body 82 is connected to two guide rods 85 that are respectively arranged along the main axis direction perpendicular to the cantilever roller 3 and pass through the transition block 832. The two guide rods 85 are respectively located on both sides of the shock absorber rod 81. The guide rod 85 is slidably fitted with the transition block 832. The outer periphery of the guide rod 85 is provided with a fourth elastic member 86 located between the inner cavity wall of the supporting seat body 82 and the transition block 832.

[0047] In this embodiment, two guide rods 85 are provided, one on each side of the shock-absorbing rod 81, to provide stable support for the transition block 832, thereby ensuring the vertical vibration-damping effect of the shock-absorbing cylinder 83. Furthermore, the transition block 832 can swing horizontally along the guide rods 85 and compress the fourth elastic member 86, thereby providing a buffer for the horizontal vibration of the reduction gearbox 2. This structure, supplementing the buffer assembly 6, ensures effective absorption of vibrations from the reduction gearbox 2 and motor 1, improving the stability of the cantilever roller 3 structural assembly.

[0048] Specifically, the fourth elastic member 86 is a high-strength spring.

[0049] As a specific embodiment of the cantilever roller structure assembly provided by the utility model, see Figure 2 and Figure 4 The cantilever roller structure assembly also includes a support seat 7 located below the shock absorber seat 8. The support seat 7 includes a base plate 71, a support vertical plate 72 connected to the top of the base plate 71, and a horizontal support plate 73 connected to the top of the support vertical plate 72. The supporting seat body 82 is connected to the top of the horizontal support plate 73.

[0050] In this embodiment, the bottom plate 71 is connected to the structural mounting surface like the base 5, and the height of the supporting vertical plate 72 is determined according to the actual installation height of the reduction gearbox 2, so that the horizontal support plate 73 can effectively cooperate with the shock-absorbing seat 8 to support and cushion the reduction gearbox 2.

[0051] The supporting seat body 82 and the transverse support plate 73 are detachably connected, so that the supporting seat 7 and the shock-absorbing seat 8 can be processed separately and installed on site, which helps to achieve the interchangeability of the supporting seat 7.

[0052] As a specific embodiment of the cantilever roller structure assembly provided by the utility model, see Figure 5 The upper end of the shock-absorbing rod 81 is connected to a horizontally extending mounting circular plate 812 , and the mounting circular plate 812 is detachably connected to the reduction box 2 .

[0053] In this embodiment, the mounting plate 812 is detachably connected to the bottom of the reduction gearbox 2 by bolts or other means, which facilitates processing and installation. At the same time, the mounting plate 812 can increase the support area of ​​the damping rod 81 on the reduction gearbox 2, thereby improving the stability of the reduction gearbox 2.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cantilever roller structure assembly, comprising a motor, a reduction gearbox and a cantilever roller connected in sequence, wherein the outer periphery of the cantilever roller is provided with a bearing seat, and the bottom of the bearing seat is connected to a base, characterized in that: A buffer assembly is connected between the bearing seat and the reduction gear box, and the buffer assembly includes an extension frame, a connecting member and a first elastic member. The extension frame is connected to the bearing seat, and the connecting member is connected to the reduction gear box. The first elastic member is arranged on the connecting member, and in the horizontal direction, the first elastic member is located between the extension frame and the reduction gear box. A shock-absorbing seat is connected to the bottom of the reduction gear box, and the shock-absorbing seat is spaced apart from the base.

2. The cantilever roller structure assembly according to claim 1, characterized in that: A mounting plate is provided on the side of the reduction gearbox close to the cantilever roller, and the connecting member includes a connecting bolt horizontally connected to the mounting plate and a nut threadedly sleeved on the outer periphery of the connecting bolt, the central axis of the connecting bolt is arranged perpendicular to the central axis of the cantilever roller, the first elastic member is sleeved on the outer periphery of the connecting bolt, and the extension frame abuts against the outer side of the first elastic member.

3. The cantilever roller structure assembly according to claim 2, characterized in that: The extension frame includes a vertical pole connected to the top of the bearing seat and two support rods connected to the upper end of the vertical pole. The two support rods are respectively located on both sides of the mounting vertical plate, and the outer ends of the support rods are slidably sleeved on the outer periphery of the connecting bolts. There are two first elastic members, and they are respectively located between the support rods and the mounting vertical plate in a one-to-one correspondence.

4. The cantilever roller structure assembly according to claim 3, characterized in that: The buffer assembly also includes two second elastic members respectively sleeved on the outer periphery of the connecting bolt, the two second elastic members are respectively located on the opposite sides of the two support rods, and the second elastic members are located between the bolt head of the connecting bolt and the support rod or between the nut and the support rod.

5. The cantilever roller structure assembly according to claim 4, characterized in that: The upper end of the vertical pole is connected with a U-shaped arc plate, and the two support rods are connected to the two ends of the U-shaped arc plate in a one-to-one correspondence.

6. A cantilever roller structure assembly according to any one of claims 2 to 5, characterized in that: The shock absorber seat includes a supporting seat body, a shock absorber rod connected to the bottom of the reduction gearbox, and a shock absorber cylinder located in the supporting seat body. The shock absorber rod extends in the up and down directions. The shock absorber cylinder is slidably sleeved on the outer periphery of the shock absorber rod. The outer periphery of the shock absorber rod is sleeved with a third elastic member, and the third elastic member is connected between the shock absorber cylinder and the shock absorber rod.

7. The cantilever roller structure assembly according to claim 6, characterized in that: The upper end of the shock-absorbing cylinder is connected to a sealing cover, and the lower end of the shock-absorbing cylinder is connected to a transition block. The shock-absorbing rod is arranged to pass through the sealing cover and the transition block, and slides with the sealing cover and the transition block respectively. The outer periphery of the shock-absorbing rod is provided with a protruding retaining ring, and the retaining ring is slidably connected to the shock-absorbing cylinder. There are two third elastic members, which are respectively located between the retaining ring and the sealing cover and between the retaining ring and the transition block.

8. The cantilever roller structure assembly according to claim 7, characterized in that: The supporting seat body is connected to two guide rods which are respectively arranged to pass through the transition block along a direction perpendicular to the main axis of the cantilever roller. The two guide rods are respectively located on both sides of the shock absorber rod. The guide rods are slidably fitted with the transition block. The outer periphery of the guide rods is provided with a fourth elastic member located between the inner cavity wall of the supporting seat body and the transition block.

9. The cantilever roller structure assembly according to claim 6, characterized in that: The cantilever roller structure assembly also includes a support seat located below the shock absorber seat, the support seat includes a base plate, a support vertical plate connected above the base plate, and a horizontal support plate connected above the support vertical plate, and the supporting seat body is connected above the horizontal support plate.

10. The cantilever roller structure assembly according to claim 6, characterized in that: The upper end of the shock-absorbing rod is connected with a horizontally extending mounting circular plate, and the mounting circular plate is detachably connected to the reduction box.

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