Roller bed device

Abstract

The utility model relates to the field of conveying equipment, and provides a roller bed device, which is used for conveying materials and comprises a base and a roller bed main body, the base and the roller bed main body are connected through a plurality of groups of lifting driving components, and the plurality of groups of lifting driving components are arranged at intervals along the conveying direction of the materials; a driving part is arranged in the middle of the base, the driving part is in transmission connection with the multiple sets of lifting driving assemblies, and the driving part drives the multiple sets of lifting driving assemblies to move and can drive the roller machine body to move in the height direction of the base. According to the roller machine device, the driving part is arranged in the middle of the base, a short middle shaft can be adopted to be connected with the lifting driving assembly, the structural arrangement is compact, compared with a structure arranged on one side of the base in a traditional structure, arrangement of a large middle transmission shaft can be omitted, and therefore cost can be reduced, and the production efficiency is improved. And the precision of the roller bed can be improved.

Description

Technical Field

[0001] This utility model relates to the field of conveying equipment technology, and in particular to a roller bed device. Background Technology

[0002] In automobile production lines, such as body welding lines, lifting roller beds are typically used to transport materials such as parts.

[0003] In traditional low-height roller press structures, the drive unit used to drive the lifting assembly to raise and lower the roller press body is mostly located on the outside of the base. In this case, an intermediate drive shaft connected to the lifting assembly is usually installed on the base. This intermediate drive shaft is connected to the drive unit, allowing the drive unit to rotate the intermediate drive shaft, which in turn drives the lifting assembly to move, thus raising and lowering the roller press body. However, this structure not only requires a drive unit with a large output torque, resulting in more parts and higher costs, but also makes it difficult to ensure the accuracy of the roller press assembly during setup, installation, and debugging. Utility Model Content

[0004] In view of this, the present invention aims to provide a rolling bed device that can reduce costs while improving the accuracy of the rolling bed.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A roller bed device for conveying materials includes a base and a roller bed body;

[0007] The base and the roller bed body are connected by multiple sets of lifting drive components, and the multiple sets of lifting drive components are arranged at intervals along the conveying direction of the material;

[0008] The base has a drive unit in the middle, which is connected to multiple sets of lifting drive components. The drive unit drives the multiple sets of lifting drive components, which can drive the roller bed body to move along the height direction of the base.

[0009] Furthermore, each of the lifting drive components includes an eccentric shaft rotatably mounted on the base and a support portion mounted on the eccentric shaft, and each of the support portions jointly supports the roller bed body; a guide structure is provided between the base and the roller bed body, and the guide structure is used to guide the roller bed body to move along the height direction of the base.

[0010] Furthermore, the guide structure includes a guide post disposed on one of the base and the roller bed body, and a guide sleeve disposed on the other of the base and the roller bed body; the guide post is inserted into the guide sleeve.

[0011] Furthermore, the drive unit and the eccentric shaft are connected by a transmission assembly; the transmission assembly includes a drive wheel located at the power output end of the drive unit, a driven wheel located on the eccentric shaft, and a transmission component that is connected between the drive wheel and the driven wheel.

[0012] Furthermore, a positioning structure is provided between the eccentric shaft and the base; the positioning structure can position the eccentric shaft during the installation process of the eccentric shaft on the base.

[0013] Furthermore, the positioning structure includes a positioning block, which is detachably connected to the eccentric shaft and the base, respectively.

[0014] Furthermore, the eccentric shaft is provided with a first positioning surface, and the positioning block is provided with a second positioning surface and a third positioning surface; during the installation of the eccentric shaft on the base, the positioning block abuts against the first positioning surface through the second positioning surface, and the positioning block abuts against the base through the third positioning surface.

[0015] Furthermore, the base is provided with a first positioner, which is used to position the material in the conveying direction, and the roller bed body is provided with a first avoidance part for avoiding the first positioner.

[0016] Furthermore, the base is provided with a second positioner, which is used to position the material in the height direction of the base, and the roller bed body is provided with a second avoidance part for avoiding the second positioner.

[0017] Furthermore, the eccentric shaft includes a first shaft body and second shaft bodies disposed at both ends of the first shaft body, and the second shaft bodies at both ends are eccentrically disposed relative to the first shaft body; the support portion includes a support wheel rotatably disposed on each of the second shaft bodies.

[0018] Compared with the prior art, this utility model has the following advantages:

[0019] The roller bed device of this utility model, through the arrangement of multiple sets of lifting drive components and a drive unit located in the middle of the base, enables the drive unit to be connected to the multiple sets of lifting drive components for transmission. When the drive unit drives the lifting components to move, it can drive the roller bed body to move up and down along the height direction of the base. In this way, by arranging the drive unit in the middle of the base, a shorter intermediate shaft can be used to connect to the lifting drive components. This not only makes the structure more compact, but also eliminates the need for a larger intermediate transmission shaft compared to the traditional structure in which the drive unit is located on one side of the base. This reduces costs and also helps to improve the accuracy of the roller bed.

[0020] Furthermore, each lifting drive assembly includes an eccentric shaft rotatably mounted on the base. Supports on each eccentric shaft collectively support the roller bed body. Simultaneously, a guide structure positioned between the base and the roller bed body allows the roller bed body to rise and fall along the height of the base as the eccentric shaft rotates. Moreover, the combination of the eccentric shaft and the guide structure enables small-stroke lifting of the roller bed body.

[0021] Secondly, the guiding structure employs a combination of guide columns and guide sleeves, which is simple in structure, easy to design and implement, and can effectively guide the roller bed body to move up and down along the height direction of the base. When multiple sets of guide columns and guide sleeves are arranged at intervals, the up and down movement of the roller bed body can be better guided, and the stability of the roller bed body relative to the base during movement is also improved. The transmission assembly uses a driving wheel set on the drive unit, a driven wheel set on the eccentric shaft, and a transmission component connecting the driving wheel and the driven wheel. This transmission method has a simple structure and high transmission efficiency, and can stably transmit the power of the drive unit to the eccentric shaft, ensuring the synchronous operation of multiple eccentric shafts, thereby facilitating the smooth lifting and lowering of the roller bed body.

[0022] Furthermore, a positioning structure is installed between the eccentric shaft and the base to position the eccentric shaft during installation and adjustment, thus ensuring better assembly accuracy. The positioning structure includes a positioning block, which is detachably connected to both the eccentric shaft and the base. Its simple structure facilitates installation and disassembly, and provides precise positioning for the eccentric shaft during installation.

[0023] By setting a first positioning surface on the eccentric shaft, and a second and third positioning surface on the positioning block, the positioning block is connected to the first positioning surface through the second positioning surface, thereby achieving the connection and positioning of the positioning block and the eccentric shaft. The positioning block is also connected to the base through the third positioning surface, thereby achieving the connection and positioning of the positioning block and the base. Its structure is simple and easy to install and operate.

[0024] In addition, the first positioner mounted on the base can position the material conveyed to the roller bed body in the conveying direction, thus ensuring the accuracy of the material conveying position. The second positioner mounted on the base can position the material conveyed to the roller bed body in the height direction of the base, which also helps to ensure the accuracy of the material conveying position. The eccentric shaft adopts an eccentrically set first shaft and second shaft, which can have a small eccentricity. This structural characteristic, namely the mechanical self-locking structure, provides good positional stability and effectively prevents the roller bed from slipping in the event of transmission component failure. The support part adopts support wheels, which have a simple structure and are easy to design and implement. Attached Figure Description

[0025] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0026] Figure 1 This is a schematic diagram of the rolling bed device described in an embodiment of the present invention;

[0027] Figure 2 This is a first-view structural schematic diagram of the roller bed body described in an embodiment of the present invention;

[0028] Figure 3 This is a second-view structural schematic diagram of the roller bed body described in an embodiment of the present invention;

[0029] Figure 4 This is a first-view structural schematic diagram of the base described in an embodiment of the present utility model;

[0030] Figure 5 This is a second-view structural schematic diagram of the base described in an embodiment of the present invention;

[0031] Figure 6 This is a schematic diagram of the eccentric shaft described in an embodiment of the present invention;

[0032] Figure 7 This is a schematic diagram of the positioning block described in an embodiment of the present utility model;

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Base; 101. Foot; 102. Eccentric shaft; 103. Transmission component; 104. Bearing housing; 105. Guide column; 106. Positioning block; 1021. Driven wheel; 301. Drive wheel; 11. First mounting plate; 12. Second mounting plate; 13. Third mounting plate; 131. Fixing hole; 132. Fourth connecting hole; 1021. First shaft; 1022. Second shaft; 1023. First positioning surface; 10231. First connecting hole; 1061. Second positioning surface; 1062. Third positioning surface; 10611. Second connecting hole; 10621. Third connecting hole;

[0035] 2. Roller bed body; 201. Roller; 202. Guide roller; 203. Detection switch assembly; 204. Rotary shaft; 205. Synchronous belt; 206. Drive unit; 207. Guide sleeve; 208. Guide rail; 21. Roller bed frame; 22. Roller bed cover plate; 221. First clearance part; 222. Second clearance part;

[0036] 10. First positioner; 20. Second positioner; 30. Drive unit; 40. Support wheel. Detailed Implementation

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0038] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model in light of the specific circumstances.

[0040] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0041] This embodiment relates to a rolling bed device that can reduce manufacturing costs and also improve the accuracy of the rolling bed.

[0042] In terms of overall structure, such as Figure 1 As shown, the roller bed device of this embodiment is used for conveying materials. The roller bed device includes a base 1 and a roller bed body 2. The base 1 and the roller bed body 2 are connected by multiple sets of lifting drive components, which are arranged at intervals along the material conveying direction. Furthermore, a drive unit 30 is provided in the middle of the base 1. The drive unit 30 is connected to the multiple sets of lifting drive components, and the drive unit 30 drives the multiple sets of lifting drive components to move, thereby driving the roller bed body 2 to move along the height direction of the base 1.

[0043] In this configuration, the drive unit 30 is positioned in the middle of the base 1. A shorter intermediate shaft can be used to connect it to the lifting drive assembly. This not only makes the structure more compact, but also eliminates the need for a larger intermediate drive shaft compared to the traditional structure where the drive unit is positioned on one side of the base 1. This reduces costs and also helps improve the accuracy of the rolling mill.

[0044] It should be noted that the materials mentioned above may include, for example, skids and components positioned on the skids. In practical use, the skids are transported from one roller bed body 2 to the next roller bed body 2, thereby realizing the transport of components between multiple roller bed bodies 2.

[0045] Based on the above overview, for details please refer to... Figures 1 to 3 As shown, the main body 2 of this embodiment of the roller bed includes a roller bed frame 21 and a roller bed cover plate 22 disposed on the roller bed frame 21. Multiple rotating shafts 204 are rotatably mounted on the roller bed frame 21, and these shafts are spaced apart along the material conveying direction. Each shaft 204 has rollers 201 at both ends. The roller bed cover plate 22 has through holes corresponding to each roller 201, and a portion of the outer circumferential surface of each roller 201 is exposed through the corresponding through hole, such that the plane containing the highest point of each roller 201 is higher than the plane of the roller bed cover plate 22. At this time, the material is supported on each roller 201, and through the synchronous rotation of each roller 201, the material can move along the conveying direction on the roller bed.

[0046] See Figure 2 and Figure 3 As shown, among the multiple rotating shafts 204, adjacent rotating shafts 204 are connected by a synchronous belt 205. A drive device 206 is provided on one side of the roller bed frame 21, and the power output end of the drive device 206 is connected to one of the rotating shafts 204 via the synchronous belt 205. Thus, driven by the drive device 206, all rotating shafts 204 rotate synchronously, thereby driving the rollers 201 on each rotating shaft 204 to rotate synchronously.

[0047] It is worth noting that the aforementioned drive device 206 may be a motor, and the output end of the motor is connected to one of the rotating shafts 204 via a synchronous belt 205 to transmit the motor power to each rotating shaft 204 and each roller 201.

[0048] In addition, guide wheels 202 are provided at both ends of the roller bed body 2 along the conveying direction. These guide wheels 202 are used to ensure the positional accuracy of the material, i.e., the skid, during its movement on the roller bed body 2. Furthermore, a detection switch assembly 203 is also provided on the roller bed body 2. This detection switch assembly 203 is used to control the movement and stop of the skid after detecting it in motion at a fixed position. The specific structure of this detection switch assembly 203 can refer to mature structures in the prior art.

[0049] In this embodiment, as a preferred implementation, such as Figure 1 , Figure 4 and Figure 6As shown, each lifting drive assembly includes an eccentric shaft 102 rotatably mounted on the base 1, and a support portion mounted on the eccentric shaft 102, with each support portion jointly supporting the roller bed body 2. Meanwhile, a guide structure is provided between the base 1 and the roller bed body 2, which guides the roller bed body 2 to move along the height direction of the base 1.

[0050] At this time, the roller bed body 2 is supported by the support parts on each eccentric shaft 102. At the same time, with the help of the guide structure set between the base 1 and the roller bed body 2, the roller bed body 2 can be raised and lowered along the height direction of the base 1 when the eccentric shaft 102 rotates. Moreover, by using the eccentric shaft 102 and the guide structure in combination, a small stroke lifting and lowering of the roller bed body 2 can be achieved.

[0051] In a specific implementation, a bearing housing 104 with bearings is provided on the base 1, and both ends of the eccentric shaft 102 are installed in the bearings. As a preferred embodiment, in this example, two eccentric shafts 102 are arranged at intervals along the conveying direction, i.e., the length direction of the base 1, and each eccentric shaft 102 has a support portion at both ends. The aforementioned drive unit 30 is arranged between the two eccentric shafts 102 and is drively connected to both eccentric shafts 102. The aforementioned roller bed body 2 is supported on each support portion. At this time, the drive unit 30 drives the eccentric shafts 102 to rotate, allowing the support portions to rotate to their lowest and highest positions. Combined with the guide structure provided between the base 1 and the roller bed body 2, this enables the roller bed body 2 to move up and down along the height direction of the base 1.

[0052] It is worth mentioning that, in addition to the two eccentric shafts 102 arranged at intervals along the conveying direction as described above, there can also be three, four, or more eccentric shafts 102. Furthermore, for existing production lines where the roller bed height is relatively high and an additional operating platform is required, the small-stroke lifting of the roller bed in this embodiment can reduce the operating height, thereby reducing line development costs and production operation costs.

[0053] In this embodiment, as a preferred implementation, the guiding structure includes a guide post 105 disposed on one of the base 1 and the roller bed body 2, and a guide sleeve 207 disposed on the other of the base 1 and the roller bed body 2, with the guide post 105 inserted into the guide sleeve 207. In this structure, the guide post 105 and the guide sleeve 207 work together, resulting in a simple structure that is easy to design and implement, and effectively guides the roller bed body 2 to move up and down along the height direction of the base 1.

[0054] like Figure 3 and Figure 4As shown, guide posts 105 are mounted on the base 1, and guide sleeves 207 are mounted on the roller bed body 2. Multiple sets of guide posts 105 and guide sleeves 207 are arranged in a one-to-one correspondence. Specifically, multiple guide posts 105 are arranged at intervals along the circumference of the base 1, and multiple guide sleeves 207 are arranged corresponding to each guide post 105. With each guide post 105 inserted into its corresponding guide sleeve 207, the lifting and lowering movement of the roller bed body 2 can be better guided, and the stability of the roller bed body 2 relative to the base 1 during movement is also improved.

[0055] It can be understood that, in addition to setting the guide post 105 on the base 1 and the guide sleeve 207 on the roller bed body 2, the guide post 105 can also be set on the roller bed body 2 and the guide sleeve 207 can be set on the base 1. In this way, the roller bed body 2 can be guided to move up and down by the insertion and cooperation of the guide post 105 and the guide sleeve 207.

[0056] In a preferred embodiment, the drive unit 30 and the eccentric shaft 102 are connected by a transmission assembly. This transmission assembly includes a drive wheel 301 located at the power output end of the drive unit 30, a driven wheel 1021 located on the eccentric shaft 102, and a transmission member 103 connecting the drive wheel 301 and the driven wheel 1021. This transmission assembly, using the drive wheel 301, driven wheel 1021, and transmission member 103, has a simple structure, high transmission efficiency, and can stably transmit the power of the drive unit 30 to the eccentric shaft 102, enabling multiple eccentric shafts 102 to operate synchronously, thereby facilitating the smooth lifting and lowering of the roller bed body 2.

[0057] Specifically, the drive wheel 301 is fixedly connected to the power output end of the drive unit 30, and each driven wheel 1021 is fixedly connected to each eccentric shaft 102. Moreover, in this embodiment, the drive wheel 301 and the driven wheel 1021 are preferably sprockets, and the transmission component 103 is preferably a chain. In this case, the drive unit 30 and the eccentric shaft 102 can ensure the rotation accuracy of the shaft 204 through the transmission of the sprockets and the chain.

[0058] It is understandable that, in addition to using sprockets for the driving wheel 301 and driven wheel 1021 and using a chain for the transmission component 103, the driving wheel 301 and driven wheel 1021 can also use gears, and the transmission component 103 can, for example, use transmission gears. Alternatively, the driving wheel 301 and driven wheel 1021 can also use rollers, and the transmission component 103 can, for example, use a synchronous belt. In this way, the power of the drive unit 30 can be transmitted to the eccentric shaft 102 through gear transmission or roller and synchronous belt transmission.

[0059] It should also be noted that the aforementioned drive unit 30 is preferably an electric motor. In a specific implementation, the power output shaft of the electric motor is provided with a double row of drive sprockets, each drive sprocket corresponding to a driven sprocket fixed on each eccentric shaft 102, and connected by a chain driven by the corresponding drive sprocket and driven sprocket.

[0060] Combination Figures 1 to 5 As shown, in this embodiment, a first positioner 10 is also provided on the base 1. The first positioner 10 is used to position the material in the conveying direction, and the roller bed body 2 is provided with a first avoidance part 221 for avoiding the first positioner 10. By providing the first positioner 10 on the base 1, the material conveyed to the roller bed body 2 can be positioned in the conveying direction, which helps to ensure the accuracy of the material conveying position.

[0061] In addition to the first positioner 10, this embodiment also includes a second positioner 20 on the base 1. The second positioner 20 is used to position the material in the height direction of the base 1, and the roller bed body 2 is provided with a second clearance part 222 to avoid the second positioner 20. The second positioner 20 can position the material conveyed to the roller bed body 2 in the height direction of the base 1, which also helps to ensure the accuracy of the material conveying position. At the same time, the cooperation between the first positioner 10 and the second positioner 20 can further ensure the accuracy of the material conveying position.

[0062] Specifically, to facilitate the installation of the first locator 10 and the second locator 20 on the base 1, in this embodiment, as follows: Figure 5 As shown, a first mounting plate 11 and a second mounting plate 12 are provided on the base 1. A first locator 10 is screwed onto the first mounting plate 11, and a second locator 20 is screwed onto the second mounting plate 12.

[0063] Furthermore, it is worth noting that the first positioner 10 and the second positioner 20 can specifically adopt the structure of the prior art. The first positioner 10 and the second positioner 20 are capable of positioning the skids conveyed onto the roller bed body 2. It is also worth noting that the first clearance portion 221 is a first clearance hole provided on the roller bed body 2, i.e., the roller bed cover plate 22, and the second clearance portion 222 is a second clearance hole provided on the roller bed body 2, i.e., the roller bed cover plate 22.

[0064] See Figure 6As shown, the eccentric shaft 102 in this embodiment specifically includes a first shaft 1020 and second shafts 1022 disposed at both ends of the first shaft 1020. The second shafts 1022 at both ends are eccentrically disposed relative to the first shaft 1020. The aforementioned support portion includes support wheels 40 rotatably disposed on each of the second shafts 1022. The roller bed body 2 is then supported on each support wheel 40. It is understood that, in addition to rotatably being disposed on the second shaft 1022, each support wheel 40 can also be fixedly connected to the corresponding second shaft 1022; this is also feasible.

[0065] In this embodiment, the eccentric shaft 102 adopts an eccentrically set first shaft 1020 and second shaft 1022, which can have a small eccentricity. This structural characteristic, namely the mechanical self-locking structure characteristic, can be utilized to have good positional stability, and can effectively prevent the roller bed from slipping when the transmission component fails. The support part adopts a support wheel 40, which has a simple structure and is easy to design and implement.

[0066] In specific implementation, to ensure the accuracy of the rolling bed body 2, a guide rail 208 is also provided on the rolling bed body 2 in this embodiment, and the guide rail 208 abuts against the support wheel 40. At this time, by improving the machining accuracy of the guide rail 208, the accuracy of the rolling bed body 2 on the base 1 can be better guaranteed.

[0067] In a preferred embodiment, a positioning structure is provided between the eccentric shaft 102 and the base 1. This positioning structure can position the eccentric shaft 102 during the installation process on the base 1. Therefore, the positioning structure can effectively position the eccentric shaft 102 during the installation and adjustment process between the eccentric shaft 102 and the base 1, thus ensuring the assembly accuracy of the eccentric shaft 102.

[0068] Specifically, such as Figure 4 , Figure 6 and Figure 7 As shown, the positioning structure includes a positioning block 106, which is detachably connected to the eccentric shaft 102 and the base 1, respectively. This positioning structure, including the positioning block 106 and allowing for detachable connections between the positioning block 106 and the eccentric shaft 102 and the base 1, is simple in structure, easy to install and disassemble, and provides precise positioning for the eccentric shaft 102 during installation, thus helping to ensure the overall installation accuracy of the roller bed. It is worth noting that the positioning block 106, as an assembly and adjustment tool, needs to be removed after the assembly and adjustment of the eccentric shaft 102 and transmission components are completed.

[0069] In this embodiment, as Figure 6 As shown, the eccentric shaft 102 is provided with a first positioning surface 1023, and then... Figure 7As shown, the positioning block 106 has an L-shaped structure, and it is provided with a second positioning surface 1061 and a third positioning surface 1062. During the installation of the eccentric shaft 102 on the base 1, the positioning block 106 is connected to the first positioning surface 1023 through the second positioning surface 1061, and the positioning block 106 is connected to the base 1 through the third positioning surface 1062.

[0070] Combined Figures 4 to 7 As shown, in this embodiment, the first positioning surface 1023 of the positioning block 106 is provided with a first connecting hole 10231, and the second positioning surface 1061 of the positioning block 106 is provided with a second connecting hole 10611. The positioning block 106 and the eccentric shaft 102 are detachably connected by a connector passing through the first connecting hole 10231 and the second connecting hole. The connector mentioned can be, for example, an external bolt or stud.

[0071] In addition, a third mounting plate 13 is provided on the base 1. The third mounting plate 13 is provided with a fixing hole 131 for fixing the bearing seat 104. The bearing seat 104 is screwed and fixed on the third mounting plate 13 by threaded connectors passing through the bearing seat 104 and the fixing hole 131, that is, fixedly installed on the base 1.

[0072] Meanwhile, the third mounting plate 13 also provides an installation position for the positioning block 106. Specifically, the third positioning surface 1062 of the positioning block 106 is provided with a third connecting hole 10621, which is a plurality of elongated holes arranged at intervals. Corresponding to the third connecting hole 10621, the third mounting plate 13 is provided with a fourth connecting hole 132, wherein there are a plurality of fourth connecting holes 132 corresponding to the third connecting hole 10621, and at least one of the fourth connecting holes 132 is an elongated hole. At this time, by means of threaded connectors passing through the corresponding third connecting hole 10621 and fourth connecting hole 132, the positioning block 106 is screwed and fixed on the third mounting plate 13, which means that the positioning block 106 is detachably connected to the base 1.

[0073] Moreover, it is worth noting that the third connecting hole 10621 and part of the fourth connecting hole 132 are elongated holes, which is beneficial for adjusting the installation position of the positioning block 106 on the base 1, thereby improving the convenience of adjusting the eccentric shaft 102.

[0074] In addition, in this embodiment, multiple feet 101 are arranged at intervals around the base 1. At this time, the base 1 can be better fixed on a fixed foundation, such as on the ground, by means of the feet 101, which can improve the stability of the base 1.

[0075] In this embodiment of the rolling bed device, by arranging the drive unit 30 in the middle of the base 1, a shorter intermediate shaft can be used to connect with the lifting drive assembly. This not only makes the structure more compact, but also eliminates the need for a larger intermediate drive shaft compared to the traditional structure where the drive unit is arranged on one side of the base 1. This reduces costs and also helps to improve the accuracy of the rolling bed.

[0076] Meanwhile, by using an eccentric shaft 102 structure to drive the rolling bed body to lift and lower, the overall height of the machine can be effectively reduced, and the driving force requirement can also be reduced. This allows the drive unit 30 to use a small-torque motor to achieve the rotation of the eccentric shaft 102 and the lifting and lowering of the rolling bed body, thus reducing manufacturing costs. Using a positioning block 106 to assist in the adjustment of the position of the eccentric shaft 102 can improve the installation accuracy of the eccentric shaft 102, thereby further ensuring the accuracy of the rolling bed.

[0077] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A roller bed device for conveying materials, characterized in that: Includes a base (1) and a roller bed body (2); The base (1) and the roller bed body (2) are connected by multiple sets of lifting drive components, and the multiple sets of lifting drive components are arranged at intervals along the conveying direction of the material; The base (1) is provided with a drive unit (30) in the middle. The drive unit (30) is connected to multiple sets of lifting drive components respectively. The drive unit (30) drives multiple sets of lifting drive components and can drive the roller bed body (2) to move along the height direction of the base (1).

2. The rolling bed device according to claim 1, characterized in that: Each of the lifting drive components includes an eccentric shaft (102) rotatably mounted on the base (1) and a support portion mounted on the eccentric shaft (102), and each of the support portions together supports the roller bed body (2). A guide structure is provided between the base (1) and the roller bed body (2), and the guide structure is used to guide the roller bed body (2) to move along the height direction of the base (1).

3. The rolling bed device according to claim 2, characterized in that: The guide structure includes a guide post (105) disposed on one of the base (1) and the roller bed body (2), and a guide sleeve (207) disposed on the other of the base (1) and the roller bed body (2). The guide post (105) is inserted into the guide sleeve (207).

4. The rolling bed device according to claim 2, characterized in that: The drive unit (30) and the eccentric shaft (102) are connected by a transmission assembly; The transmission assembly includes a drive wheel (301) located at the power output end of the drive unit (30), a driven wheel (1021) located on the eccentric shaft (102), and a transmission member (103) that is connected between the drive wheel (301) and the driven wheel (1021).

5. The rolling bed device according to claim 2, characterized in that: A positioning structure is provided between the eccentric shaft (102) and the base (1); The positioning structure is capable of positioning the eccentric shaft (102) during the installation of the eccentric shaft (1) on the base (1).

6. The rolling bed device according to claim 5, characterized in that: The positioning structure includes a positioning block (106), which is detachably connected to the eccentric shaft (102) and the base (1).

7. The rolling bed device according to claim 6, characterized in that: The eccentric shaft (102) is provided with a first positioning surface (1023), and the positioning block (106) is provided with a second positioning surface (1061) and a third positioning surface (1062). During the installation of the eccentric shaft (102) on the base (1), the positioning block (106) is connected to the first positioning surface (1023) through the second positioning surface (1061), and the positioning block (106) is connected to the base (1) through the third positioning surface (1062).

8. The rolling bed device according to claim 2, characterized in that: The base (1) is provided with a first positioner (10), which is used to position the material in the conveying direction, and the roller bed body (2) is provided with a first avoidance part (221) for avoiding the first positioner (10).

9. The rolling bed device according to claim 2, characterized in that: The base (1) is provided with a second positioner (20), which is used to position the material in the height direction of the base (1), and the roller bed body (2) is provided with a second avoidance part (222) for avoiding the second positioner (20).

10. The rolling bed apparatus according to any one of claims 2 to 8, characterized in that: The eccentric shaft (102) includes a first shaft body (1020) and a second shaft body (1022) disposed at both ends of the first shaft body (1020), and the second shaft body (1022) at both ends is eccentrically disposed relative to the first shaft body (1020); The support includes a support wheel (40) rotatably mounted on each of the second shafts (1022).

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