Roller carrier

Abstract

The utility model relates to the technical field of roller carriers, and provides a roller carrier which comprises a bottom plate. Each supporting piece comprises two swing rods, one ends of the swing rods are correspondingly hinged to the two sides of the bottom plate, and the other ends of the swing rods are hinged to the bottom plate; the two first rollers are correspondingly and rotationally arranged at the other ends of the swing rods, the other ends of the swing rods get close to each other or get away from each other after the swing rods swing and are used for supporting cylinders with different diameters, the first rollers are used for abutting against the cylinders, and the cylinders are driven to rotate after the first rollers rotate; and the two ends of the connecting chain are correspondingly hinged to the two swing rods, and the connecting chain is used for abutting against the cylinder. By means of the technical scheme, the problems that in the prior art, contact points between the roller carrier and the thin-wall cylinder are few, and the cylindrical shell is prone to deformation are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of roller stands, and specifically, to a roller stand. Background Art

[0002] A roller stand is a device that drives a cylindrical (or conical) welded part to rotate by means of the friction force between the welded part and the driving roller; roller stands can be divided into various forms such as self-adjusting type, adjustable type, flat car type, tiltable type, and anti-axial movement type. Among them, the adjustable roller stand includes a base, a driving roller component, and a driven roller component; basically, the roller stands produced in the market have a two-wheel or four-wheel structure, with few contact points with the thin-walled cylinder, and the cylindrical shell is prone to deformation. For example, during the production of a shell-and-tube heat exchanger, when the shell-and-tube heat exchanger lies flat for tube threading or hydrostatic testing, the equipment is relatively heavy, and the contact position with the roller is prone to indentation and deformation. Summary of the Utility Model

[0003] The utility model provides a roller stand, which solves the problem that in the related art, the roller stand has few contact points with the thin-walled cylinder and the cylindrical shell is prone to deformation.

[0004] The technical solution of the utility model is as follows:

[0005] A roller stand, comprising:

[0006] A bottom plate;

[0007] Support members, there are several of them, and each support member includes:

[0008] Two swing rods, one end of each is correspondingly hinged on both sides of the bottom plate;

[0009] Two first rollers, which are correspondingly rotatably arranged at the other end of the swing rod. The other ends of the swing rods approach or move away from each other after swinging, for supporting cylinders of different diameters. The first rollers are used to abut against the cylinder, and after the first rollers rotate, they drive the cylinder to rotate;

[0010] A connecting chain, both ends of which are correspondingly hinged on the two swing rods, and the connecting chain is used to abut against the cylinder.

[0011] As a further technical solution, each support member further includes:

[0012] Two elastic members, one end of each is hinged on the bottom plate, and the other end is hinged on the other end of the swing rod. The elastic members are used to provide the force for the two swing rods to be symmetrically arranged.

[0013] As a further technical solution, each support member further includes:

[0014] Several second rollers, which are spaced and rotatably arranged on the connecting chain and abut against the cylinder.

[0015] As a further technical solution, the support member further includes:

[0016] A driving member disposed within one of the swing rods, the driving member driving the first roller to rotate.

[0017] As a further technical solution, the swing rod has an installation cavity, and the driving member is disposed within the installation cavity.

[0018] As a further technical solution, the connecting chain includes:

[0019] Link rods, there are several of them, and the several link rods are sequentially hinged, and the outermost link rods are respectively hinged to the two swing rods.

[0020] As a further technical solution, it further includes:

[0021] A first chain that is looped around the driving member and the first roller, and the driving member drives the first roller to rotate through the first chain.

[0022] As a further technical solution, it further includes:

[0023] There are several second chains, which are sequentially looped around two adjacent first rollers and the link rods, and the second chains drive the first rollers and the second rollers to rotate synchronously.

[0024] As a further technical solution, the elastic member includes:

[0025] A first support rod, one end of which is hinged to the swing rod;

[0026] A second support rod, one end of which is hinged to the bottom plate;

[0027] A sleeve, one end of which is slidably disposed on the other end of the first support rod, and the other end is disposed on the other end of the second support rod;

[0028] An elastic unit is located within the sleeve, and both ends are correspondingly disposed on the other end of the first support rod and the other end of the second support rod, and the elastic member is used to provide a force for the first support rod and the second support rod to approach each other.

[0029] The working principle and beneficial effects of the present utility model are as follows:

[0030] In this utility model, to solve the problem in related technologies that there are few contact points between the roller stand and the thin-walled cylinder and the cylindrical shell is prone to deformation, in this solution, the bottom plate is used as a support platform. One end of the swing rod is fixed to both sides of the bottom plate by means of hinge, and the other end is provided with a first roller for contacting the cylindrical workpiece. Through the swing of the swing rod, the first rollers can approach or move away from each other, so as to adapt to cylinders of different diameters, improving the versatility and adaptability of the roller stand. The first roller is rotatably arranged at the other end of the swing rod. When the cylinder is placed on the roller, the friction between the first roller and the cylinder can drive the cylinder to rotate, realizing the stable movement and rotation of the workpiece, which is convenient for welding and assembly operations. Between the two swing rods, a connecting chain is provided, and both ends of the connecting chain are respectively hinged to the swing rods. The design of the connecting chain not only enhances the stability of the support member, but also can form additional contact points with the cylinder, dispersing the pressure on the cylinder and avoiding the deformation problem of the cylindrical shell caused by too few contact points. Through the swing of the swing rod and the layout of the first rollers, the roller stand can flexibly adapt to cylinders of different diameters, and the addition of the connecting chain further enhances the supporting ability for the cylinder. Even when carrying heavy equipment, the geometric accuracy and structural integrity of the cylinder can be maintained, and it is applicable to a variety of industrial application scenarios. Description of the Drawings

[0031] The following will further illustrate the above characteristics, technical features, advantages and their implementation manners of the present utility model in a clear and understandable manner in combination with the drawings of the preferred embodiments.

[0032] Figure 1 It is a schematic structural diagram of the present utility model;

[0033] Figure 2 is Figure 1 an enlarged schematic view of part A of

[0034] Figure 3 is Figure 1 a side view sectional view of

[0035] In the figure: 100, bottom plate; 200, support member; 210, swing rod; 220, first roller; 230, connecting chain; 240, elastic member; 250, second roller; 260, driving member; 211, installation cavity; 231, connecting rod; 300, first chain; 400, second chain; 241, first support rod; 242, second support rod; 243, sleeve; 244, elastic unit. Detailed Embodiment

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, further technical solutions can be understood. Among some of the figures, components with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0037] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0038] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0039] Referring to Figures 1 to 3 , as the first embodiment of the present invention, there is provided

[0040] A roller rack, comprising:

[0041] A bottom plate 100;

[0042] There are several supporting members 200, and each supporting member 200 includes:

[0043] There are two swing rods 210, and one end of each is correspondingly hinged on both sides of the bottom plate 100;

[0044] There are two first rollers 220, which are correspondingly rotatably arranged at the other end of the swing rod 210. After the swing rod 210 swings, the other ends approach or move away from each other, for supporting cylinders with different diameters. The first roller 220 is used to abut against the cylinder. After the first roller 220 rotates, it drives the cylinder to rotate;

[0045] A connecting chain 230, and both ends are correspondingly hinged on the two swing rods 210. The connecting chain 230 is used to abut against the cylinder.

[0046] In this embodiment, to solve the problem in the related art that there are few contact points between the roller stand and the thin-walled cylinder and the cylindrical shell is prone to deformation, in this solution, the bottom plate 100 is used as a support platform. One end of the swing rod 210 is fixed to both sides of the bottom plate 100 by means of hinge, and the other end is provided with a first roller 220 for contacting the cylindrical workpiece. Through the swing of the swing rod 210, the first rollers 220 can approach or move away from each other, so as to adapt to cylinders of different diameters, improving the versatility and adaptability of the roller stand. The first roller 220 is rotatably arranged at the other end of the swing rod 210. When the cylinder is placed on the roller, the frictional force between the first roller 220 and the cylinder can drive the cylinder to rotate, realizing the stable movement and rotation of the workpiece, which is convenient for welding and assembly operations. Between the two swing rods 210, a connecting chain 230 is provided, and both ends of the connecting chain 230 are respectively hinged to the swing rod 210. The design of the connecting chain 230 not only enhances the stability of the support member 200, but also can form additional contact points with the cylinder, dispersing the pressure on the cylinder and avoiding the deformation problem of the cylindrical shell caused by too few contact points. Through the swing of the swing rod 210 and the layout of the first roller 220, the roller stand can flexibly adapt to cylinders of different diameters, and the addition of the connecting chain 230 further enhances the supporting ability for the cylinder. Even when carrying heavy equipment, it can maintain the geometric accuracy and structural integrity of the cylinder, and is applicable to a variety of industrial application scenarios.

[0047] Furthermore, the support member 200 further includes:

[0048] Elastic members 240, there are two of them. One end is hinged to the bottom plate 100, and the other end is hinged to the other end of the swing rod 210. The elastic members 240 are used to provide the force for the two swing rods 210 to be symmetrically arranged.

[0049] In this embodiment, one end of the elastic member 240 is fixed to the bottom plate 100 by means of hinge, and the other end is hinged to the other end of the swing rod 210, forming a force balance system. When the cylindrical workpiece is placed on the roller stand, the elastic member 240 can automatically adjust the position of the swing rod 210 according to the weight and diameter of the workpiece, maintaining the balanced distribution of the contact points between the swing rod 210 and the workpiece, and avoiding the skew or poor rolling of the workpiece caused by uneven unilateral force. Through the symmetrically arranged force provided by the elastic member 240, the roller stand can better adapt to cylindrical workpieces of different sizes and weights. Even when the diameter of the workpiece changes, it can quickly adjust the position of the swing rod 210, making the other ends of the two swing rods 210 approach or move away from each other, and the two swing rods 210 are always symmetrical. The workpiece is stably supported on the roller, improving the versatility and adaptability of the roller stand.

[0050] Furthermore, the support member 200 further includes:

[0051] A plurality of second rollers 250, which are rotatably arranged at intervals on the connecting chain 230 and abut against the cylinder.

[0052] In this embodiment, on the connecting chain 230, a number of second rollers 250 are rotatably arranged at intervals. By arranging the second rollers 250 on the connecting chain 230, the roller frame can provide a more uniform support force distribution, avoiding excessive local compression of the cylinder caused by too few contact points and reducing the deformation risk of the cylinder shell. When supporting cylinders of different diameters or weights, the second rollers 250 can automatically adjust the contact position according to the actual size of the workpiece, and the roller frame can provide a stable support effect under various working conditions. This embodiment not only optimizes the support stability of the cylindrical workpiece and reduces the deformation risk, but also reduces the friction between the cylinder and the connecting chain 230.

[0053] Furthermore, the support member 200 further includes:

[0054] A driving member 260, which is arranged inside a swing rod 210, and the driving member 260 drives the first roller 220 to rotate.

[0055] In this embodiment, inside one of the swing rods 210 of the support member 200, a driving member 260 is designed. The driving member 260 adopts a small motor, a gearbox or a pneumatic / hydraulic driving device, so that the driving member 260 can operate stably even in a narrow space. The driving member 260 is connected to the first roller 220 through a transmission mechanism (such as a chain, a belt or a direct drive method), and can accurately transmit the power to the first roller 220 to realize its active rotation. The use of the driving member 260 not only improves the automation degree of the roller frame, but also enhances the safety of the equipment.

[0056] Furthermore, the swing rod 210 has an installation cavity 211, and the driving member 260 is arranged in the installation cavity 211.

[0057] In this embodiment, inside the swing rod 210, a special installation cavity 211 is designed, and the driving member 260 can be concealedly installed inside the swing rod 210 without being exposed to the external structure of the roller frame. The size and shape of the installation cavity 211 not only ensure the stable installation of the driving member 260, but also ensure the strength and rigidity of the overall structure of the swing rod 210. By arranging the installation cavity 211 inside the swing rod 210, the roller frame can realize the concealed installation of the driving member 260, which not only reduces the floor area of the equipment, improves the structural compactness, but also avoids the potential safety hazards caused by the direct exposure of the driving member 260 outside, such as the injury caused by accidental contact of the operator, and improves the operation safety of the equipment. The design of the installation cavity 211 takes into account the diverse selection of the driving member 260. Whether it is electric, pneumatic or hydraulic drive, a suitable space can be found for installation. This not only improves the adaptability of the roller frame, enabling it to select the most suitable drive method according to different working environments and requirements, but also ensures the versatility of the equipment, enabling it to be applied to a wide range of industrial scenarios.

[0058] Furthermore, the connecting chain 230 includes:

[0059] Link rods 231, there are several of them, and the link rods 231 are sequentially hinged. The outermost link rods 231 are respectively hinged to the two swing rods 210.

[0060] It further includes:

[0061] The first chain 300 is looped around the driving member 260 and the first roller 220. The driving member 260 drives the first roller 220 to rotate through the first chain 300.

[0062] It further includes:

[0063] The second chain 400, there are several of them, and they are sequentially looped around two adjacent first rollers 220 and link rods 231. The second chain 400 drives the first roller 220 and the second roller 250 to rotate synchronously.

[0064] In this embodiment, the connecting chain 230 is composed of several link rods 231. These link rods 231 are sequentially connected by hinge means to form a continuous chain-like structure. The two outermost link rods 231 are respectively hinged to the two swing rods 210, ensuring a stable connection between the connecting chain 230 and the swing rods 210. At the same time, due to the hinge characteristics of the link rods 231, it adapts to the swing of the swing rods 210 and maintains the flexibility and stability of the connecting chain 230. Between the driving member 260 and the first roller 220, a first chain 300 is designed. This chain is looped around the output shaft of the driving member 260 and the driving shaft of the first roller 220. When the driving member 260 is started, through the transmission of the first chain 300, the power can be accurately transmitted to the first roller 220 to realize its active rotation and drive the workpiece to move along a predetermined direction. Between two adjacent first rollers 220 and link rods 231, the second chains 400 are looped. These second chains 400 not only connect the first rollers 220 but also connect the second rollers 250 on the link rods 231. The arrangement of the second chains 400 ensures the synchronous rotation between the first roller 220 and the second roller 250, improving the stability and efficiency of workpiece processing. Through the cooperation of the link rods 231, the first chain 300 and the second chain 400, the automation degree of the roller rack is significantly improved.

[0065] Furthermore, the elastic member 240 includes:

[0066] The first support rod 241, one end of which is hinged to the swing rod 210;

[0067] The second support rod 242, one end of which is hinged to the bottom plate 100;

[0068] The sleeve 243 has one end slidably disposed on the other end of the first rod 241 and the other end disposed on the other end of the second rod 242;

[0069] The elastic unit 244 is located inside the sleeve 243, and its two ends are correspondingly disposed on the other end of the first rod 241 and the other end of the second rod 242. The elastic member 240 is used to provide a force for the first rod 241 and the second rod 242 to approach each other.

[0070] In this embodiment, the elastic member 240 is composed of the first rod 241 and the second rod 242. One end of the first rod 241 is fixedly connected to the swing rod 210 by a hinge, while one end of the second rod 242 is hinged to the bottom plate 100. One end of the sleeve 243 is slidably disposed on the other end of the first rod 241, and the other end is fixed to the other end of the second rod 242. This enables the first rod 241 and the second rod 242 to approach and move away from each other along the arrangement direction of the sleeve 243. The elastic unit 244 is located inside the sleeve 243, and its two ends are respectively disposed on the other end of the first rod 241 and the other end of the second rod 242. The elastic unit 244 is usually made of a spring, an elastic rope or a similar elastic material, and can automatically adjust its length according to the change of the external force, providing a force for the first rod 241 and the second rod 242 to approach each other. When supporting a cylinder with a larger diameter, the first rod 241 and the second rod 242 move away from each other, and the elastic member 240 is stretched. On the contrary, when supporting a cylinder with a smaller diameter. This embodiment not only optimizes the stable support and automatic adjustment mechanism of the swing rod 210, improves the adaptability of the device and the workpiece processing efficiency, but also ensures the convenience of operation and the long-term reliability of the device.

[0071] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A roller frame, characterized in that: include: Bottom plate (100); There are a plurality of support members (200), each of which comprises: There are two swing rods (210), one end of which is hingedly arranged on both sides of the bottom plate (100); The first rollers (220) have two wheels and are rotatably arranged on the other end of the swing rod (210) so that the other ends of the swing rod (210) move closer to or farther from each other after the swing rod (210) swings, and are used to support cylinders of different diameters. The first rollers (220) are used to abut against the cylinders. When the first rollers (220) rotate, they drive the cylinders to rotate; A connecting chain (230) has two ends correspondingly hingedly arranged on the two swing rods (210), and the connecting chain (230) is used to abut against the cylinder.

2. A roller frame according to claim 1, characterized in that: The support member (200) further comprises: The elastic member (240) has two ends, one end of which is hingedly arranged on the bottom plate (100) and the other end of which is hingedly arranged on the other end of the swing rod (210). The elastic member (240) is used to provide force for the two swing rods (210) to be symmetrically arranged.

3. The roller frame according to claim 1, characterized in that: The support member (200) further comprises: A plurality of second rollers (250) are rotatably arranged on the connecting chain (230) at intervals and abut against the cylinder.

4. The roller frame according to claim 1, characterized in that: The support member (200) further comprises: A driving member (260) is disposed in one of the swing rods (210), and the driving member (260) drives the first roller (220) to rotate.

5. The roller frame according to claim 4, characterized in that: The rocker rod (210) has a mounting cavity (211), and the driving member (260) is arranged in the mounting cavity (211).

6. The roller stand according to claim 3, characterized in that: The connection chain (230) comprises: There are a plurality of connecting rods (231), and the connecting rods (231) are hingedly arranged in sequence, and the connecting rods (231) at the outermost edges are hingedly arranged on the two swing rods (210) respectively.

7. The roller frame according to claim 4, characterized in that: Also includes: The first chain (300) is cyclically arranged around the driving member (260) and the first roller (220), and the driving member (260) drives the first roller (220) to rotate via the first chain (300).

8. The roller stand according to claim 6, characterized in that: Also includes: The second chain (400) comprises a plurality of chains which are cyclically arranged on two adjacent first rollers (220) and the connecting rod (231) in sequence, and the second chain (400) drives the first roller (220) and the second roller (250) to rotate synchronously.

9. The roller frame according to claim 2, characterized in that: The elastic member (240) comprises: A first support rod (241), one end of which is hingedly arranged on the swing rod (210); A second support rod (242), one end of which is hingedly disposed on the bottom plate (100); A sleeve (243), one end of which is slidably disposed on the other end of the first support rod (241), and the other end of which is disposed on the other end of the second support rod (242); The elastic unit (244) is located in the sleeve (243), and its two ends are correspondingly arranged on the other end of the first support rod (241) and the other end of the second support rod (242), and the elastic member (240) is used to provide a force for bringing the first support rod (241) and the second support rod (242) closer to each other.

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