Belt roller replacement device

Abstract

The utility model relates to a belt supporting roller replacement device belongs to supporting roller maintenance technical field, this belt supporting roller replacement device, include: shear type jack, mounting seat and set up between the adjusting lever of both, adjusting mechanism, the adjusting mechanism includes two clamping blocks of sliding connection in the inner wall of mounting seat, two the two-way screw rod is set up between clamping blocks, two auxiliary support bars are set up between shear type jack and adjusting lever, through setting adjustable clamping block in the base inside, and its combination with two-way screw rod, solved the problem that traditional shear type jack can only adapt specific belt support, through making the clamping block spacing adjustable, make mounting seat can adapt to different size belt support, thereby promoted the applicability and flexibility of jack, reduced the operation difficulty that the base and support do not match bring, improved operation safety and equipment versatility.

Description

Technical Field

[0001] This utility model relates to the field of idler maintenance technology, and in particular to a belt idler replacement device. Background Technology

[0002] Belt idlers are crucial components of belt conveyors, supporting the conveyor belt and materials while reducing running resistance. Normal wear during use can lead to roller damage, bearing failure causing abnormal noise or jamming; poor sealing leading to grease leakage and dust intrusion accelerating wear; and material adhering to the surface, all of which can cause belt misalignment and damage. Therefore, timely replacement is key to ensuring stable operation of the conveyor system and preventing unexpected shutdowns and safety accidents. A belt idler replacement device is required when replacing idlers.

[0003] The traditional method for replacing belt idlers involves using a scissor jack to lift the belt from below the idler to be replaced. However, the base of a traditional scissor jack must be stably engaged with the belt support for it to work, which means that one type of jack can only be used with a specific support, resulting in low flexibility in its use. Utility Model Content

[0004] Therefore, it is necessary to provide a belt roller replacement device to address the issue of low usage flexibility.

[0005] The belt idler replacement device includes: a scissor jack, a mounting base, and an adjusting rod disposed between the two; The adjustment mechanism includes two clamping blocks slidably connected to the inner wall of the mounting base, a bidirectional lead screw is provided between the two clamping blocks, and two auxiliary support rods are provided between the scissor jack and the adjustment rod.

[0006] In one embodiment, one end of the bidirectional lead screw is rotatably connected to the inner wall of the mounting base, while the other end is fixedly connected to a first bevel gear, which is rotatably connected to the inner wall of the mounting base.

[0007] In one embodiment, a second bevel gear is rotatably connected to the upper surface of the mounting base. The second bevel gear penetrates the mounting base and meshes with the first bevel gear. A rotating wheel is provided at the top of the second bevel gear.

[0008] In one embodiment, the top end of the adjusting rod is hinged to the bottom end of the scissor jack, the bottom end of the adjusting rod is hinged to the surface of the mounting base, and a positioning element is slidably connected to the bottom end of the adjusting rod, the positioning element penetrating the adjusting rod.

[0009] In one embodiment, the surface of the mounting base is provided with a plurality of positioning holes corresponding to the positioning member, and a spring is provided between the end of the positioning member near the mounting base and the back of the adjusting rod.

[0010] In one embodiment, sliders are slidably connected to the inner walls of both sides of the adjusting rod, and the auxiliary support rod is hinged between the sliders and the scissor jack.

[0011] In one embodiment, the inner wall of the adjusting rod is provided with a plurality of limiting holes, and a threaded rod is provided between the bottom end of the slider and the auxiliary support rod, the threaded rod being provided in correspondence with the limiting holes.

[0012] In one embodiment, the auxiliary support rods located on both sides of the adjusting rod are arranged in a mirror image.

[0013] Beneficial effects 1. By incorporating adjustable clamps within the base and combining them with a two-way lead screw, the problem of traditional scissor jacks only being compatible with specific belt supports is solved. Adjustable clamp spacing allows the mounting base to accommodate belt supports of different sizes, thereby improving the jack's applicability and flexibility, reducing operational difficulties caused by mismatches between the base and the support, and enhancing operational safety and equipment versatility. 2. By hinged the adjusting rod between the mounting base and the jack, the jack's angle and position relative to the mounting base can be flexibly adjusted, thus better adapting to different working environments and task requirements. This allows the jack to be used in more complex working conditions, improving operational flexibility. Especially in hard-to-access spaces, operators can adjust the jack's position and angle to ensure smooth operation, avoiding the problem of traditional jacks being unable to apply force in confined spaces. 3. By setting an auxiliary support rod between the jack and the adjusting rod, the supporting force of the jack after the angle is adjusted is increased, thereby making the support of the belt by this device more stable. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the mounting base of this utility model; Figure 3 This is a schematic diagram showing the connection between the connector and the adjusting rod of this utility model; Figure 4 This is an exploded view of the present invention; Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.

[0016] Figure label: 100. Scissor jack; 200. Adjusting rod; 300. Mounting base; 400. Adjusting mechanism; 410. Clamping block; 420. Two-way lead screw; 421. First bevel gear; 422. Second bevel gear; 430. Positioning component; 431. Spring; 432. Positioning hole; 440. Auxiliary support rod; 441. Sliding block; 442. Limiting hole; 443. Threaded rod. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] The following is combined Figure 1 - Figure 5 This invention describes a belt idler roller replacement device.

[0019] In one embodiment, the belt idler replacement device includes: a scissor jack 100, a mounting base 300, and an adjusting rod 200 disposed between the two; The adjustment mechanism 400 includes two clamping blocks 410 slidably connected to the inner wall of the mounting base 300, a bidirectional lead screw 420 between the two clamping blocks 410, and two auxiliary support rods 440 between the scissor jack 100 and the adjustment rod 200.

[0020] When replacing idlers, first stop the machine and lock the power supply to the conveyor belt. The operator then locates the idler to be replaced. Next, install this device under the belt support near the idler. Then, operate the scissor jack 100, using the rocker arm to rotate the screw in the center of the jack, driving the two crossed arms to retract inward, thereby lifting the support and supporting the belt above, creating working space below. Finally, remove the old idler, install the new idler, and rotate the screw in the opposite direction to lower the jack and reset the belt. One end of the screw of the scissor jack 100 in this device is fixedly connected to a wheel. The operator can manually rotate the wheel to drive the jack. At the same time, the other end of the scissor jack 100 is equipped with an adapter, which can be connected to the drive end of a servo motor. The operator can also drive the screw through the servo motor, and can choose to use it according to the specific application scenario. When the screw of the 100mm scissor jack is rotated, the threads on it force the internal nut to move horizontally, which in turn changes the angle between the two sets of cross-connected support arms. Rotating the screw makes the angle smaller, and the top lifting platform rises vertically. Conversely, when the angle increases, the platform descends, thus achieving the lifting and lowering of heavy objects.

[0021] like Figure 1 and Figure 2 As shown, one end of the bidirectional lead screw 420 is rotatably connected to the inner wall of the mounting base 300, while the other end is fixedly connected to a first bevel gear 421. The first bevel gear 421 is rotatably connected to the inner wall of the mounting base 300. A second bevel gear 422 is rotatably connected to the upper surface of the mounting base 300. The second bevel gear 422 penetrates into the mounting base 300 and meshes with the first bevel gear 421. A rotating wheel is provided at the top of the second bevel gear 422.

[0022] In this embodiment, when the operator rotates the wheel corresponding to the second bevel gear 422, the wheel will preferentially drive the second bevel gear 422 to rotate, the second bevel gear 422 will drive the first bevel gear 421 to rotate, and the rotation of the first bevel gear 421 will drive the bidirectional lead screw 420 to rotate synchronously, thereby driving the clamping block 410 to rotate. Since this device is only used when replacing the idler rollers, it is normally stored. Before use, it needs to be properly cleaned. In the working state, its base is placed on the belt support, and the bidirectional lead screw 420 is located between the base and the belt support. In order to reduce the weight of this device, the bidirectional lead screw 420 of this device can work normally without the addition of additional protective components.

[0023] It should be noted that this device flexibly adapts to different belt supports by setting an adjustable clamping base at the bottom of the traditional scissor jack 100. It also adds an angle adjustment function to the scissor jack 100, enabling the jack to support the belt in complex environments. The adjustment mechanisms 400 of this device are all located on the outside of the scissor jack 100 and will not affect the internal structure of the scissor jack 100. Furthermore, this device only provides position fixing and angle adjustment for the scissor jack 100 and will not affect the normal operation of the jack.

[0024] like Figure 1 , Figure 3 and Figure 4As shown, the top end of the adjusting rod 200 is hinged to the bottom end of the scissor jack 100, and the bottom end of the adjusting rod 200 is hinged to the surface of the mounting base 300. A positioning element 430 is slidably connected to the bottom end of the adjusting rod 200, and the positioning element 430 passes through the adjusting rod 200. The surface of the mounting base 300 has multiple positioning holes 432 corresponding to the positioning elements 430. A spring 431 is provided between the end of the positioning element 430 near the mounting base 300 and the back of the adjusting rod 200.

[0025] In this embodiment, a semi-circular protrusion is provided in the middle part of the mounting base 300, and the bottom end of the adjusting rod 200 is hinged to this part. At the same time, multiple positioning holes 432 are evenly distributed in a circle along the hinge point between the adjusting rod 200 and the mounting base 300. The positioning member 430 consists of two positioning rods, a connecting plate connecting the two positioning rods, and a pull ring fixed to the surface of the positioning rod. Meanwhile, the spring 431 is sleeved on the surface of the positioning rod. When it is necessary to adjust the angle of the adjusting rod 200, the adjusting rod 200 can be disengaged from the positioning hole 432 by pulling the pull ring. At this time, the adjusting rod 200 is in a movable connection with the semi-circular protrusion, and the positioning rod will cooperate with the adjusting rod 200 to compress the spring 431. When the adjusting rod 200 is adjusted to a suitable angle, the pull ring is released, and the spring 431 will drive the positioning rod to automatically reset and insert into the positioning hole 432.

[0026] like Figure 1 , Figure 4 and Figure 5 As shown, sliders 441 are slidably connected to the inner walls of both sides of the adjusting rod 200, and an auxiliary support rod 440 is hinged between the sliders 441 and the scissor jack 100. Multiple limiting holes 442 are provided on the inner wall of the adjusting rod 200, and a threaded rod 443 is provided between the bottom ends of the sliders 441 and the auxiliary support rod 440, with the threaded rod 443 corresponding to the limiting holes 442. The auxiliary support rods 440 located on both sides of the adjusting rod 200 are arranged in a mirror image.

[0027] In this embodiment, the slider 441 is slidably connected to the grooves opened on both sides of the adjusting rod 200. The cross-section of the groove is U-shaped, and the slider 441 is set inside the groove. The slider 441 consists of a square block and a threaded sleeve, and the threaded rod 443 is threaded with the threaded sleeve. When the threaded rod 443 is rotated, the threaded rod 443 will move in conjunction with the threaded sleeve, thereby limiting and fixing the auxiliary support rod 440 in conjunction with the limiting hole 442. When it is necessary to adjust the angle of the jack, the jack is tilted to one side, and the bottom end of the auxiliary support rod 440 on the corresponding side will slide down along the groove, while the bottom end of the auxiliary support rod 440 on the other side will slide up along the groove in conjunction with the slider 441. After adjusting to a suitable angle, fine-tuning is required to align the threaded rod 443 with the limiting hole 442, thereby providing a stable fulcrum for the auxiliary support rod 440 and providing support force for the jack.

[0028] Working principle: When it is necessary to replace the belt idler, select a suitable position for installation of this device; during installation, select a suitable position for the belt bracket, and then place the mounting base 300 on its surface. Then, by rotating the rotating wheel, the rotating wheel drives the threaded rod 443 to rotate. When the threaded rod 443 rotates, the two clamping blocks 410 on its surface will move synchronously until the two clamping blocks 410 are in contact with the belt bracket and apply pressure. At this point, the installation of the mounting base 300 is completed. When the installation position of this device is not the optimal position for belt support, the angle of the adjusting rod 200 can be adjusted to achieve the optimal angle for belt support. During this process, the positioning part 430 is pulled out from the positioning hole 432, and then the adjusting rod 200 is rotated. At this time, the bottom end of the adjusting rod 200 can rotate. The operator manually rotates the adjusting rod 200 to the appropriate angle, and then releases the positioning part 430. Under the action of the spring 431, the positioning part 430 will automatically insert into the corresponding positioning hole 432 to complete the reset and fix the bottom of the adjusting rod 200. When the angle of the jack needs to be adjusted, rotate the two threaded rods 443 to disengage them from the limiting hole 442, then rotate the jack directly to adjust it until the appropriate angle is reached. Then, select the appropriate limiting hole 442 to make slight adjustments to the jack until the threaded rod 443 is aligned with the limiting hole 442. Finally, rotate the threaded rod 443 in the opposite direction to reset it.

[0029] It should be noted that the scissor jack 100, threaded rod 443, double-acting screw 420, and spring 431 mentioned above are all devices with relatively mature existing technology. Specific models can be selected according to actual needs, and will not be elaborated here.

[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A belt idler roller replacement device, characterized in that, include: A scissor jack (100), a mounting base (300), and an adjusting rod (200) disposed between the two; The adjustment mechanism (400) includes two clamping blocks (410) slidably connected to the inner wall of the mounting base (300), a bidirectional lead screw (420) is provided between the two clamping blocks (410), and two auxiliary support rods (440) are provided between the scissor jack (100) and the adjustment rod (200).

2. The belt idler replacement device according to claim 1, characterized in that, One end of the bidirectional lead screw (420) is rotatably connected to the inner wall of the mounting base (300), while the other end is fixedly connected to a first bevel gear (421), which is rotatably connected to the inner wall of the mounting base (300).

3. The belt idler replacement device according to claim 2, characterized in that, The upper surface of the mounting base (300) is rotatably connected to a second bevel gear (422), which penetrates the mounting base (300) and meshes with the first bevel gear (421). A rotating wheel is provided at the top of the second bevel gear (422).

4. The belt idler replacement device according to claim 1, characterized in that, The top end of the adjusting rod (200) is hinged to the bottom end of the scissor jack (100), and the bottom end of the adjusting rod (200) is hinged to the surface of the mounting base (300). The bottom end of the adjusting rod (200) is slidably connected to a positioning element (430), and the positioning element (430) passes through the adjusting rod (200).

5. The belt idler replacement device according to claim 4, characterized in that, The surface of the mounting base (300) is provided with a plurality of positioning holes (432) corresponding to the positioning member (430), and a spring (431) is provided between the end of the positioning member (430) near the mounting base (300) and the back of the adjusting rod (200).

6. The belt idler replacement device according to claim 1, characterized in that, The inner walls on both sides of the adjusting rod (200) are slidably connected to sliders (441), and the auxiliary support rod (440) is hinged between the sliders (441) and the scissor jack (100).

7. The belt idler replacement device according to claim 6, characterized in that, The inner wall of the adjusting rod (200) is provided with multiple limiting holes (442), and a threaded rod (443) is provided between the bottom end of the slider (441) and the auxiliary support rod (440), and the threaded rod (443) is provided in correspondence with the limiting holes (442).

8. The belt idler replacement device according to claim 7, characterized in that, The auxiliary support rods (440) located on both sides of the adjusting rod (200) are arranged in a mirror image.

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