A tyre building machine

Abstract

The utility model discloses a kind of tyre changer, including cloth arm support, drive assembly, pipeline telescopic mechanism, cloth belt and pipeline, cloth arm support is equipped with N section, previous section cloth arm support can retract or extend relative to following section;Drive assembly includes head drive cylinder, tail drive cylinder and belt retraction structure, tail drive cylinder is equipped in the rear end of N section cloth arm support, head drive cylinder is equipped in the front end of first section cloth arm support, cloth belt is annularly tensioned on drive assembly;Pipeline is worn on pipeline telescopic mechanism, the head end of pipeline is extended from pipeline telescopic mechanism and is connected with head drive cylinder, its rear end is extended from pipeline telescopic mechanism and is connected with power source, and pipeline telescopic mechanism is used to drive pipeline to lengthen or retract with cloth arm support.The utility model uses head+tail electric double drive design, to optimize the belt tension distribution, reduce the loss of belt.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, specifically to a tire belt machine. Background Technology

[0002] In the construction of water conservancy and hydropower projects, belt conveyors are mainly used for large-volume concrete pouring. These conveyors primarily transport and distribute concrete and other fillers by assembling a belt conveyor within their telescopic boom. The belt conveyor is a crucial component of the belt conveyor system. Currently, most manufacturers' belt conveyors use a tail-drive design in their boom belt conveyor systems, employing either hydraulic or electric drive. This design facilitates the layout of hydraulic lines and saves headroom. However, the tail-drive configuration forces the tail section to simultaneously bear the material load and traction force, resulting in a significant increase in the tension on the tight side of the drive drum, exacerbating belt fatigue and leading to a high failure rate. Simultaneously, the starting torque surges, increasing drive power and energy consumption. Therefore, existing belt conveyor designs not only consume a lot of energy in actual use but also have extremely high failure rates and replacement rates for vulnerable parts, resulting in persistently high operating costs. Utility Model Content

[0003] To address the problems in the background technology, this utility model proposes a tire belt machine that adopts a head + tail electric dual drive design, thereby optimizing the belt tension distribution, reducing belt wear, and reducing the design starting torque, thus lowering energy consumption.

[0004] The present invention adopts the following technical solution: A fabric conveyor belt machine includes a fabric boom, a drive assembly, a pipeline telescopic mechanism, a fabric belt, and a pipeline. The fabric boom has N sections, where N≥3. The previous section of the fabric boom can retract into the next section of the fabric boom, or extend from the next section of the fabric boom. The drive assembly includes a head drive roller, a tail drive roller, and a belt retraction structure. The tail drive roller is located at the rear end of the Nth section of the fabric boom, the head drive roller is located at the front end of the first section of the fabric boom, and the belt retraction structure is located on the fabric boom. The fabric belt is annularly tensioned between the head drive roller, the tail drive roller, and the belt retraction structure. The belt retraction structure can release the fabric belt when the fabric boom extends, so that it extends as the fabric boom extends, and can retract the fabric belt when the fabric boom retracts, so that it retracts as the fabric boom retracts. The pipeline telescopic mechanism is installed on the fabric boom, and the pipeline passes through the pipeline telescopic mechanism. The first end of the pipeline extends from the pipeline telescopic mechanism and is connected to the head drive roller, and the second end extends from the pipeline telescopic mechanism and is connected to the power source. The pipeline telescopic mechanism is used to drive the pipeline to extend or retract with the fabric boom.

[0005] Optionally, the pipeline telescopic mechanism includes N-1 sections of slide rails, which are respectively installed on the second to Nth sections of the fabric boom. Each slide rail is arranged along the telescopic direction of the fabric boom, and multiple sliding structures are slidably installed on each slide rail. The multiple sliding structures are spaced apart along the length direction of the corresponding slide rail. The height position of the previous slide rail corresponds to the height position of the sliding structure on the next slide rail. The pipeline passes through the sliding structures on each slide rail in sequence.

[0006] Optionally, the sliding structure at the rear end of each fabric boom section is fixed to a corresponding slide rail.

[0007] Optionally, the sliding structure includes a sliding part and a mounting part that are hinged together. The sliding part is slidably connected to a corresponding slide rail, and the mounting part is connected to the lower end of the sliding part, through which the pipeline passes.

[0008] Optionally, the power distribution between the head drive roller and the tail drive roller is 1-2:1.

[0009] Optionally, the belt retraction structure includes redirecting rollers located at the rear end of the first section of the boom, the front end of the Nth section of the boom, and the front and rear ends of the remaining boom sections. The boom belt sequentially passes over the tail drive roller, the head drive roller, the redirecting roller at the rear end of the first boom section, the redirecting roller at the front end of the second boom section, the redirecting roller at the rear end of the second boom section, ..., the redirecting roller at the front end of the N-1th boom section, the redirecting roller at the rear end of the N-1th boom section, and the redirecting roller at the front end of the Nth boom section before reaching the tail drive roller. Before and after the preceding boom section extends from the following boom section, the redirecting roller at the rear end of the preceding boom section is located above and behind the redirecting roller at the front end of the following boom section.

[0010] Optionally, the belt retraction structure further includes a redirecting roller located behind the Nth section of the fabric boom. After the fabric belt passes the tail drive roller and before it passes the head drive roller, it also includes a redirecting roller that passes behind the Nth section of the fabric boom.

[0011] Optionally, the drive assembly further includes two tension rollers, which are located at the rear end of the Nth section of the fabric boom and on both sides of the tail drive roller. The fabric belt extends from both ends of the drive roller and passes over the corresponding tension rollers.

[0012] Optionally, each section of the fabric boom is also equipped with multiple idlers to support the fabric belt.

[0013] Optionally, the fabric boom has 3 sections.

[0014] Compared with the prior art, the advantages of this utility model are: This novel tire belt conveyor adopts a dual-drive layout with a head drive and a tail drive, thereby optimizing belt tension distribution and reducing belt wear. Compared with a single tail drive design, this design reduces starting torque and energy consumption. The dual-drive design can still meet on-site construction needs even if one drive fails, improving equipment stability and production efficiency. A pipeline deployment mechanism arranges the pipeline between the telescopic booms, allowing the pipeline to extend and retract with the booms, providing power to the head drive rollers. Attached Figure Description

[0015] To facilitate understanding of this invention, it will be described in more detail with reference to the specific embodiments shown in the accompanying drawings. These drawings depict only typical embodiments of this invention and should not be considered as limiting the scope of protection of this invention.

[0016] Figure 1 This is a front view schematic diagram of the tire belt machine in the extended state according to an embodiment of the present utility model.

[0017] Figure 2 This is a three-dimensional structural diagram of the tire belt machine in the extended state according to an embodiment of the present utility model.

[0018] Figure 3 This is a three-dimensional structural diagram of the pipeline telescopic mechanism in the extended state in an embodiment of this utility model.

[0019] Figure 4 for Figure 3 A magnified view of a portion of the image.

[0020] Figure 5 This is a front view of the tire belt machine in the retracted state according to an embodiment of the present invention.

[0021] Figure 6 This is a three-dimensional structural diagram of the tire belt machine in the retracted state according to an embodiment of the present utility model.

[0022] Figure 7 This is a three-dimensional structural diagram of the pipeline telescopic mechanism in the retracted state in an embodiment of this utility model.

[0023] Figure label: 1. Fabric conveyor belt; 2. Front boom; 3. Intermediate boom; 4. Base boom; 5. Pipeline telescopic mechanism; 51. Slide rail; 52. Sliding structure; 521. Sliding part; 522. Mounting part; 6. Drive assembly; 61. Head drive roller; 62. Tail drive roller; 63. Redirecting roller; 64. Tensioning roller; 65. Idler roller; 7. Pipeline. Detailed Implementation

[0024] The embodiments of the present invention are described below with reference to the accompanying drawings, so that those skilled in the art can better understand and implement the present invention. However, the listed embodiments are not intended to limit the present invention. In the absence of conflict, the following embodiments and the technical features in the embodiments can be combined with each other, wherein the same components are indicated by the same reference numerals.

[0025] like Figures 1-7 As shown, this embodiment provides a tire belt machine, including a fabric boom, a drive assembly 6, a pipeline telescopic mechanism 5, a fabric belt 1, and a pipeline 7. The fabric boom has N sections, where N≥3. The previous section of the fabric boom can retract into the next section of the fabric boom, or extend from the next section of the fabric boom. The drive assembly 6 includes a head drive roller 61, a tail drive roller 62, and a belt retraction structure. The tail drive roller 62 is located at the rear end of the Nth section of the fabric boom, the head drive roller 61 is located at the front end of the first section of the fabric boom, and the belt retraction structure is located on the fabric boom. The fabric belt 1 is annularly tensioned between the head drive roller 61, the tail drive roller 62, and the belt retraction structure. The belt retraction structure can release the fabric belt 1 when the fabric boom extends, so that it extends as the fabric boom extends, and can retract the fabric belt 1 when the fabric boom retracts, so that it retracts as the fabric boom retracts. The pipeline telescopic mechanism 5 is mounted on the fabric boom, and the pipeline 7 passes through the pipeline telescopic mechanism 5. The head end of the pipeline 7 extends from the pipeline telescopic mechanism 5 and is connected to the head drive roller 61, and its rear end extends from the pipeline telescopic mechanism 5 and is connected to the power source. The pipeline telescopic mechanism 5 is used to drive the pipeline 7 to extend or retract with the fabric boom.

[0026] Therefore, a dual-drive layout with head drive and tail drive is adopted, which optimizes belt tension distribution and reduces belt wear. Compared with a single tail drive design, this design reduces starting torque and energy consumption. The dual-drive design can still meet on-site construction needs even if one drive fails, improving equipment stability and production efficiency. A pipeline deployment mechanism arranges the pipeline between the telescopic booms, allowing the pipeline to extend and retract with the boom, providing power to the head drive rollers.

[0027] In this embodiment, the pipeline telescopic mechanism 5 includes N-1 sections of slide rail 51, which are respectively arranged on the second to the Nth sections of the fabric boom. Each section of slide rail 51 is arranged along the telescopic direction of the fabric boom. Multiple sliding structures 52 are slidably provided on each section of slide rail 51. The multiple sliding structures 52 are arranged at intervals along the length direction of the corresponding slide rail 51. The height position of the previous section of slide rail 51 corresponds to the height position of the sliding structure 52 on the next section of slide rail 51. The pipeline 7 passes through the sliding structure 52 on each section of slide rail 51 in sequence.

[0028] Therefore, as Figure 4 As shown, when the first section of the boom retracts into the second section, the slide rail 51 on the first section drives the sliding structures 52 in the second section to slide backward, thereby folding the pipeline segments on the second section. When the first section of the boom retracts into the second section, the first section drives the sliding structures 52 in the second section to slide backward, thus folding the pipeline segments on the second section.

[0029] When the first section of the boom extends from the next section, the continuity of the pipeline will cause the sliding structure 52 on the next section to move forward, thereby unfolding the pipeline segment on the next section. Similarly, when the first section of the boom extends from the second section, the pipeline on the first section will also cause the sliding structure 52 on the second section to move forward, thereby unfolding the pipeline segment on the second section.

[0030] This invention utilizes the boom's own mechanical telescopic and sliding structure to achieve synchronous folding and unfolding of pipeline 7, eliminating the need for additional power mechanisms. The pipeline telescopic mechanism can extend and retract synchronously with the boom, resulting in a simple, stable, reliable, and low-cost structure. Furthermore, compared to pipeline deployment and retraction devices such as cable chains, this design relies on the sliding of a trolley to achieve pipeline folding and extension, without the intervention of complex mechanical structures and power systems, resulting in a low failure rate. While achieving the required functions, it reduces manufacturing and subsequent maintenance costs.

[0031] In this embodiment, the sliding structure 52 at the rear end of each fabric boom section is fixed on the corresponding slide rail 51. That is, the sliding structure 52 at the rear end of each fabric boom section acts as a stop to prevent part of the sliding structure 52 from falling off the slide rail 51 when the fabric boom retracts and drives the sliding structure 52 to move backward as a whole.

[0032] In this embodiment, the sliding structure 52 includes a sliding part 521 and a mounting part 522 that are hinged together. The sliding part 521 is slidably connected to the corresponding slide rail 51, and the mounting part 522 is hinged to the lower end of the sliding part 521. The pipeline 7 passes through the mounting part 522.

[0033] In this embodiment, the power distribution between the head drive roller 61 and the tail drive roller 62 is 1-2:1.

[0034] In this embodiment, the belt retraction structure includes redirecting rollers 63 located at the rear end of the first section of the fabric boom, the front end of the Nth section of the fabric boom, and the front and rear ends of the remaining sections of the fabric boom. The fabric belt 1 sequentially passes around the tail drive roller 62, the head drive roller 61, the redirecting roller 63 at the rear end of the first section of the fabric boom, the redirecting roller 63 at the front end of the second section of the fabric boom, the redirecting roller 63 at the rear end of the second section of the fabric boom, ..., the redirecting roller 63 at the front end of the N-1th section of the fabric boom, the redirecting roller 63 at the rear end of the N-1th section of the fabric boom, and the redirecting roller 63 at the front end of the Nth section of the fabric boom before reaching the tail drive roller 62. Before and after the previous section of the fabric boom extends from the next section of the fabric boom, the redirecting roller 63 at the rear end of the previous section of the fabric boom is always located above and behind the redirecting roller 63 at the front end of the next section of the fabric boom.

[0035] Therefore, when each fabric boom retracts, the redirecting roller 63 at its rear end can drive the fabric belt to fold during the backward movement. When the fabric boom extends, the redirecting roller 63 at its rear end can drive the fabric belt to unfold during the forward movement, so as to realize that the fabric belt extends and retracts with the fabric boom.

[0036] In this embodiment, the belt winding and unwinding structure also includes a redirecting roller 63 located behind the Nth section of the fabric boom. After the fabric belt 1 passes the tail drive roller 62 and before it passes the head drive roller 61, it also includes a redirecting roller 63 that passes behind the Nth section of the fabric boom.

[0037] In this embodiment, in order to achieve better tension of the fabric belt and reduce slippage, the drive assembly 6 also includes two tensioning rollers 64. The two tensioning rollers 64 are located at the rear end of the Nth section of the fabric boom and are located on both sides of the tail drive roller 62. The fabric belt 1 extends from both ends of the drive roller and passes over the corresponding tensioning rollers 64.

[0038] In this embodiment, each section of the fabric boom is also equipped with multiple idler rollers 65 for supporting the fabric belt 1.

[0039] In this embodiment, the fabric boom has 3 sections, as shown in the reference. Figures 1-7 The first section of the fabric boom is the forearm boom 2, the second section of the fabric boom is the intermediate boom 3, and the third section of the fabric boom is the base boom 4.

[0040] The boom conveyor belt system is used to transport filler and concrete, and is a crucial functional structure of the entire machine. The front boom (2), intermediate boom (3), and base boom (4) form the boom mechanism of the conveyor belt system, providing load-bearing capacity. The pipeline extension mechanism (5) is an important auxiliary structure of the boom conveyor belt system. The power pipeline of the conveyor belt extends and retracts synchronously with the boom via this mechanism, ensuring a stable power source for the conveyor belt system.

[0041] The drive assembly 6 mainly consists of a head drive unit, a tail drive unit, a redirecting roller assembly, and an idler roller assembly. The boom conveyor design in this embodiment differs from existing products, employing a dual-drive arrangement (head + tail). The head drive unit accounts for 1 / 2 or 2 / 3 of the total power, bearing the main material load and traction, and providing the primary starting torque. The tail drive unit accounts for 1 / 2 or 1 / 3 of the total power, assisting in bearing the material load and traction, and providing auxiliary starting torque. Even in light-load conditions such as horizontal or downward material transport, a head drive failure ensures continued operation, improving equipment stability and production efficiency. Redirecting roller assemblies are arranged in each boom section for belt redirection and belt storage. The belt is the carrier of material transport, and the idler roller assembly supports the belt's movement; both are crucial components of the conveyor.

[0042] The pipeline telescopic mechanism 5 mainly consists of a forearm fixed pipeline structure, an intermediate arm pipeline telescopic mechanism, and a base arm pipeline telescopic mechanism. The forearm pipeline structure has a fixed relative driving position, allowing the pipeline to be directly fixed to the forearm's own steel structure. The intermediate arm and base arm pipeline telescopic mechanisms must enable the pipeline to telescopically extend and retract synchronously with the boom. This structure requires welding a track to each of the intermediate and base arm structures for the sliding trolleys. Two sets of trolleys are fixed at the front and rear of each boom section, holding the pipeline. As the boom telescopically extends and retracts, the trolleys slide to fold and resize the pipeline. This solution is simple in structure, has a low failure rate, and utilizes the boom's own mechanical structure to achieve synchronous pipeline telescopic movement, eliminating the need for additional power mechanisms.

[0043] In this embodiment, both the head drive roller 61 and the tail drive roller 62 are electrically driven, with the power source being a power supply device and the pipeline 7 being a cable. In other embodiments, the electric motor drive can be replaced with a hydraulic motor drive to achieve the same function, and the pipeline 7 can be a hydraulic oil pipe, with the rest of the structure remaining unchanged.

[0044] In summary, this embodiment of the tire belt conveyor adopts a dual-drive layout with head drive and tail drive. Both the head drive roller and the tail drive roller are electric rollers, and the electric rollers are selected with built-in drive motors to save head space. The head drive roller extends and retracts with the conveyor boom, so a pipeline extension mechanism is designed to work in conjunction with it. The power of the head drive roller accounts for 1 / 2 to 2 / 3 of the total machine power, which is closer to the theoretical tension distribution of the belt conveyor and improves the utilization rate of friction. The tail drive can share the traction force, increase the return belt tension, and prevent belt slippage. Compared with the head-only drive layout, the head-tail dual-drive arrangement can change the belt tension from a concentrated load to a distributed load, reducing the overall belt tension by 30%-60%. Therefore, this drive layout can reduce belt wear. Because the starting torque of the head-tail dual-drive arrangement is shared by two points, the belt tension transmission efficiency is higher, the delay is lower, and the starting load is reduced. Therefore, its overall machine power can also be reduced significantly compared with the tail drive, thus reducing energy consumption.

[0045] In this embodiment, both drives utilize built-in electric rollers. The tail drive roller, due to its fixed position, can be directly connected to the power source. The head drive roller, because it extends and retracts with the boom, requires cable telescopic structures on all boom sections except its own. The sliding trolleys at the rear of the cable telescopic structure on each boom section are fixed to that section. The remaining trolleys slide on tracks as the boom extends and retracts to achieve cable folding and telescopic movement. This design is simple in structure, has a low failure rate, and utilizes the boom's own mechanical structure for synchronous telescopic movement, eliminating the need for additional power mechanisms.

[0046] This invention proposes a novel design concept for a tire belt conveyor boom, employing a dual-drive design at both ends. This optimizes belt tension distribution, reduces maximum belt tension, and minimizes belt wear. Compared to single-point drive, the dual-drive design distributes the starting torque across both ends, reducing the starting load and power consumption. The addition of a pipeline telescopic mechanism enables pipeline extension and retraction, resulting in a purely mechanical structure with a simple design and fewer potential failure points. This reduces belt and energy losses, effectively lowering the operating cost of the tire belt conveyor. The dual-drive arrangement ensures continued operation even if one drive fails, improving overall equipment stability. Therefore, although some initial manufacturing costs are increased (due to cables and the cable telescopic mechanism), the actual performance during use surpasses the original design in energy saving, emission reduction, and belt wear reduction, while also significantly improving operational stability.

[0047] The embodiments described above are merely preferred embodiments of this utility model. The terms "in one embodiment," "in another embodiment," "in yet another embodiment," or "in still another embodiment" used in this specification all refer to one or more of the same or different embodiments according to this disclosure. Ordinary variations and substitutions made by those skilled in the art within the scope of this utility model's technical solution should be included within the protection scope of this utility model.

Images