A device for replacing a belt conveyor idler

Abstract

The present application belongs to the technical field of belt conveyor maintenance tools, and aims to solve the problems of operation difficulty, low efficiency and safety hazards in the existing roller replacement mode. The device for replacing the belt conveyor roller comprises a fixing mechanism, a supporting mechanism and a jacking mechanism, the fixing mechanism is connected with the jacking mechanism through the supporting mechanism; the fixing mechanism is detachably connected with the cross beam of the belt conveyor, and is used for providing fixed support for the device; the supporting mechanism is used for transmitting support force and adjusting the relative position and connection angle between the fixing mechanism and the jacking mechanism; the jacking mechanism is used for providing jacking force and lifting the belt upward to realize the separation of the belt and the to-be-replaced roller. Through the rigid connection of the fixing mechanism with the cross beam of the belt conveyor, a structured and reliable force bearing system is formed in combination with the supporting mechanism, the possibility of tool injury and belt falling caused by the slipping of the support point is eliminated, and the safety and replacement efficiency in the roller replacement process are improved.

Description

Technical Field

[0001] This invention relates to the field of belt conveyor maintenance tools, and more specifically to a device for replacing belt conveyor idlers. Background Technology

[0002] Belt conveyors are the core method for transporting raw coal in power plants. As a key support component of belt conveyors, idlers need to operate under load for extended periods and are prone to malfunctions such as wear on the drum skin and damage to the shaft. They are high-frequency wear parts of belt conveyors and require regular disassembly and replacement. Due to the tension of the belt tensioning device, the weight of the belt itself, and the typically narrow working space of belt conveyors, idler replacement operations are quite difficult.

[0003] Currently, the conventional method for replacing damaged idler rollers in power plants is to use a hand-operated hoist and crowbar in conjunction with manual lifting of the conveyor belt. This method generally requires two or more workers to work together, which is labor-intensive and difficult to operate. Traditional replacement methods lack dedicated adaptable structures, resulting in low work efficiency, time-consuming and labor-intensive operations, which seriously affects the continuity of raw coal transportation in power plants. At the same time, it is difficult to find stable support points for hand-operated hoists and crowbars during operation, which can easily lead to tool slippage, conveyor belt falls, and other situations, posing significant safety hazards. Summary of the Invention

[0004] (a) Purpose of the invention The purpose of this invention is to provide a device for replacing conveyor belt idlers, aiming to solve the problems of operational difficulties, low replacement efficiency, and safety hazards in existing idler replacement methods.

[0005] (II) Technical Solution To solve the above problems, the present invention provides a device for replacing conveyor belt idlers, the device comprising a fixing mechanism, a supporting mechanism and a lifting mechanism, wherein the fixing mechanism is connected to the lifting mechanism through the supporting mechanism; The fixing mechanism is detachably connected to the crossbeam of the belt conveyor and is used to provide fixed support for the device; The support mechanism is used to transmit support force and adjust the relative position and connection angle between the fixing mechanism and the lifting mechanism; The lifting mechanism is used to provide lifting force and lift the belt upward, thereby separating the belt from the idler roller to be replaced.

[0006] Preferably, the fixing mechanism includes a gripper and a first connecting plate, the gripper being connected to the first connecting plate and adapted to the crossbeam, and the first connecting plate being connected to the support mechanism.

[0007] Preferably, the device further includes a first adjustment mechanism, wherein the first connecting plate and the support mechanism are rotatably connected through the first adjustment mechanism, and the first adjustment mechanism is used to adjust the included angle between the first connecting plate and the support mechanism.

[0008] Preferably, the device further includes a second adjustment mechanism, the gripper and the first connecting plate are connected through the second adjustment mechanism, and the second adjustment mechanism is used to adjust the relative position of the gripper and the first connecting plate.

[0009] Preferably, the second adjustment mechanism includes a second connecting plate and a connecting member. The second connecting plate is fixedly connected to the gripper and the connecting member. The connecting member is provided with a limiting protrusion. The first connecting plate is provided with a plurality of limiting through holes. The plurality of limiting through holes are arranged perpendicularly along the axial direction of the connecting member. The limiting protrusion is adapted to the limiting through holes.

[0010] Preferably, the first connecting plate and the second connecting plate are arranged in parallel.

[0011] Preferably, the support mechanism includes a first support plate and a second support plate, the second support plate being connected to the fixing mechanism through the first support plate, and the lifting mechanism being disposed on the second support plate.

[0012] Preferably, the support mechanism further includes a third support plate, one end of which is connected to the surface of the first support plate, and the second end of which is connected to the surface of the second support plate and located on one side of the bottom of the lifting mechanism.

[0013] Preferably, the lifting mechanism includes a jack and a crowbar, the jack being connected to the support mechanism, and the crowbar being connected to the lifting end of the jack.

[0014] Preferably, the lifting mechanism further includes a first anti-slip component and a second anti-slip component. The first anti-slip component is disposed at the bottom of the jack and connected to the support mechanism, and the second anti-slip component is disposed at the lifting end of the jack and connected to the crowbar.

[0015] (III) Beneficial Effects The above-described technical solution of the present invention has the following beneficial technical effects: 1. The fixed mechanism is directly and rigidly connected to the crossbeam of the belt conveyor, forming a structured and reliable load-bearing system in combination with the support mechanism. The lifting force of the lifting mechanism is between the crossbeam and the belt, which completely eliminates the possibility of tool injury or belt falling due to slippage of the support point, and improves the safety during the replacement of idlers.

[0016] 2. The lifting mechanism provides mechanical force to replace manual lifting, transforming heavy manual labor into simple mechanical operation. Usually, one person can operate the lifting mechanism to easily lift the belt, which greatly saves manpower, improves the efficiency of idler replacement, and shortens the downtime of the belt conveyor caused by idler replacement, thus ensuring the continuity of production activities such as coal transportation in power plants.

[0017] 3. By adjusting the relative position and connection angle between the fixed mechanism and the lifting mechanism through the support mechanism, the device is flexible and adjustable, and can be flexibly adjusted according to the site conditions, thereby adapting to various specifications of belt conveyors and improving the site applicability of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the device for replacing conveyor belt idlers provided by the present invention; Figure 2 This is a schematic diagram of the structure of the first connecting plate in the device provided by the present invention.

[0019] Figure label: 1. Fixing mechanism; 11. Gripper; 12. First connecting plate; 12a. Limiting through hole; 2. Supporting mechanism; 21. First support plate; 22. Second support plate; 23. Third support plate; 3. Lifting mechanism; 31. Jack; 32. Crowbar; 33. First anti-slip component; 34. Second anti-slip component.

[0020] 4. First regulating mechanism; 5. Second adjustment mechanism; 51. Second connecting plate; 52. Connecting piece; 521. Limiting protrusion; 100. Crossbeam. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0022] The accompanying drawings illustrate layer structure diagrams according to embodiments of the present invention. These drawings are not to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0023] Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] In the description of this invention, it should be noted that the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] Combination Figure 1 and Figure 2 This invention provides a device for replacing idler rollers on a belt conveyor. The device includes a fixing mechanism 1, a support mechanism 2, and a lifting mechanism 3. The fixing mechanism 1 is connected to the lifting mechanism 3 via the support mechanism 2. The fixing mechanism 1 is detachably connected to the crossbeam 100 of the belt conveyor. By detachably connecting to the inherent, structurally strong crossbeam 100 of the belt conveyor, the device is firmly anchored at the work site, providing fixed support for the device. The support mechanism 2 integrates the fixing mechanism 1 and the lifting mechanism 3 into a single unit, forming a complete force transmission path. Through its own structure, such as changes in length and angle, it adapts to different models of belt conveyors, enabling the lifting mechanism 3 to accurately reach the working point below the belt and perfectly fit the outer contour of the crossbeam 100, ensuring stable force distribution. The lifting mechanism 3 provides a stable and controllable lifting force, acting directly on the belt to overcome its own weight and tension, lifting it and creating operating space for the removal and installation of damaged idler rollers below.

[0026] Specifically, during the use of the device, the detachable connection between the fixing mechanism 1 and the belt conveyor beam 100 establishes a stable and safe working base for the entire device in narrow and complex working environments. The support mechanism 2 accurately transmits and guides the supporting force from the fixing mechanism 1 to the area below the belt that needs to be lifted. At the same time, the support mechanism 2 enables the lifting mechanism 3 to flexibly adapt to belt conveyor frames of different specifications and idlers in different positions, ensuring the versatility of the device. When the lifting mechanism 3 is activated, the lifting force generated acts on the belt, lifting it upward and completely separating it from the idler to be replaced below, thereby completing the replacement operation under no-load and safe conditions.

[0027] With this setup, the fixing mechanism 1 is rigidly connected directly to the crossbeam 100 of the conveyor belt, forming a structured and reliable load-bearing system in conjunction with the support mechanism 2. The lifting force of the lifting mechanism 3 is between the crossbeam 100 and the belt, completely eliminating the possibility of tool injuries or belt falls due to slippage of the support point, thus improving safety during idler replacement. The lifting mechanism 3 provides mechanical force to replace manual lifting, transforming heavy manual labor into simple mechanical operation. Typically, one person can operate the lifting mechanism 3 to easily lift the belt, greatly saving manpower, improving idler replacement efficiency, and shortening the downtime of the conveyor belt caused by idler replacement, ensuring the continuity of production activities such as coal transportation in power plants. The support mechanism 2 allows for adjustment of the relative position and connection angle between the fixing mechanism 1 and the lifting mechanism 3, making the device flexible and adjustable. It can be flexibly adjusted according to site conditions, thus adapting to various specifications of conveyor belts and improving the device's on-site applicability.

[0028] In a preferred embodiment, the fixing mechanism 1 includes a gripper 11 and a first connecting plate 12. The gripper 11 is connected to the first connecting plate 12. As a component in the fixing mechanism 1 that directly contacts the crossbeam 100, the gripper 11 adapts to the shape of the crossbeam 100 to achieve quick and secure hooking or locking, applying the load of the device to the crossbeam 100. The first connecting plate 12 serves as a transition plate in the fixing mechanism 1. One end of the first connecting plate 12 is connected to the gripper 11, and the other end is connected to the support mechanism 2. It smoothly transfers the load borne by the gripper 11 to the subsequent support mechanism 2 and provides a stable mounting component or interface for the connection of the support mechanism 2.

[0029] With this configuration, the gripper 11 is adapted to the crossbeam 100 for faster installation compared to simple bolt clamping. It requires only a simple hook-and-loop action, eliminating the need for additional tools and improving work efficiency in confined spaces. The first connecting plate 12 connects the potentially irregularly shaped gripper 11 to the subsequent support mechanism 2 via a flat plate. This avoids the support mechanism 2 needing to directly adapt to the complex shape of the crossbeam 100, simplifying the overall device and improving structural reliability. More importantly, the gripper 11 directly adapts to the crossbeam 100, achieving surface or line contact, which helps disperse localized stress and prevents damage to the surface of the crossbeam 100.

[0030] In a preferred embodiment, the device further includes a first adjusting mechanism 4. The first connecting plate 12 and the support mechanism 2 are rotatably connected via the first adjusting mechanism 4. The first adjusting mechanism 4 can be a pivot, hinge, or bolt hub with a locking function, connecting the first connecting plate 12 and the support mechanism 2, allowing relative rotation between them to change the included angle, and locking the angle after adjustment. When faced with different tilt angles of the frame or limited operating space, the operator can loosen the first adjusting mechanism 4, rotate the support mechanism 2 to a suitable angle, and then lock the first adjusting mechanism 4, so that a stable new included angle relationship is formed between the support mechanism 2 and the fixing mechanism 1. At the same time, the first connecting plate 12 and the support mechanism 2 can fit completely against the outer contour of the crossbeam 100 to adapt to different specifications of belt frame crossbeams 100.

[0031] With this configuration, the first adjustment mechanism 4 allows the support mechanism 2 to swing relative to the fixed gripper 11. Regardless of the angle or outer contour of the crossbeam 100, it can be adapted by adjusting the angle between the first adjustment structure and the support mechanism 2, greatly improving the device's adaptability to complex field environments.

[0032] In a preferred embodiment, the device further includes a second adjustment mechanism 5, through which the gripper 11 and the first connecting plate 12 are connected. The second adjustment mechanism 5 is used to adjust the relative position of the gripper 11 and the first connecting plate 12, such as... Figure 1 As shown, the second adjustment mechanism 5 is an adjustment element disposed between the gripper 11 and the first connecting plate 12. It can change the position of the gripper 11 relative to the first connecting plate 12, that is, adjust the specific position of the gripper 11 in the inclined direction along the first connecting plate 12 in the figure, and thus adjust the contact length with the inclined surface on the upper left side of the crossbeam 100.

[0033] With this configuration, the cross-sectional dimensions of the crossbeam 100 vary for different models of belt conveyors. For example, when facing a taller crossbeam 100, the grabber 11 can be extended further downwards via the second adjustment mechanism 5 to ensure that the fixing plate can hook onto the bottom of the crossbeam 100, further expanding the versatility of the device and adapting to more specifications of belt conveyors. More importantly, after the grabber 11 is initially attached to the crossbeam 100, the position of the grabber 11 can be fine-tuned via the second adjustment mechanism 5, thereby fine-tuning the posture of the entire device to ensure that the grabber 11 is reliably connected to the crossbeam 100 and is in the optimal stress state.

[0034] In a preferred embodiment, the second adjusting mechanism 5 includes a second connecting plate 51 and a connecting member 52. The second connecting plate 51 is fixedly connected to the gripper 11, and the second connecting plate 51 is fixedly connected to the connecting member 52. The connecting member 52 is provided with a limiting protrusion 521, and the first connecting plate 12 is provided with a plurality of limiting through holes 12a. The plurality of limiting through holes 12a are arranged perpendicularly along the axial direction of the connecting member 52, and the limiting protrusion 521 is adapted to the limiting through holes 12a. Specifically, as shown in the figure... Figure 2 As shown, the second connecting plate 51 serves as a transition between the gripper 11 and the connector 52, transmitting the displacement and force of the gripper 11 to the connector 52. The connector 52 is a rod-shaped or plate-shaped component with a limiting protrusion 521. The limiting protrusion 521 is equivalent to a pin that is movably connected to the limiting through hole 12a on the first connecting plate 12. Multiple limiting through holes 12a are provided on the first connecting plate 12. The limiting protrusion 521 on the connector 52 can be a spring pin or a pluggable pin, which can be selectively inserted into the limiting through holes 12a of different heights on the first connecting plate 12. During adjustment, the limiting protrusion 521 is pulled out or the pin is pulled out, and the gripper 11 is moved up and down, driving the second connecting plate 51 and the connector 52 to the target height. During locking, the limiting protrusion 521 is released or the pin is inserted, allowing the limiting protrusion 521 to be inserted into the corresponding limiting through hole 12a, thereby achieving rigid fixation of the gripper 11 and the first connecting plate 12 in the vertical direction.

[0035] With this arrangement, the multiple limiting through holes 12a provide multiple clear height levels for the device. Height adjustment can be achieved simply by aligning the limiting protrusion 521 with the limiting through hole 12a and inserting it. This structure is simple and easy to manufacture. The tight fit between the limiting protrusion 521 and the hole wall of the limiting through hole 12a effectively prevents any relative swaying, ensuring that the gripper 11 and the first connecting plate 12 remain absolutely stationary during heavy-load lifting, thus ensuring the overall stability of the force-bearing process.

[0036] In the preferred embodiment, the first connecting plate 12 and the second connecting plate 51 are arranged in parallel. No matter which height position the second adjusting mechanism 5 adjusts the gripper 11 to, the connecting piece 52 remains parallel to the first connecting plate 12, thereby causing the second connecting plate 51 to also remain parallel to the first connecting plate 12.

[0037] With this arrangement, the second connecting plate 51 remains parallel to the first connecting plate 12, ensuring that the force is transmitted along the plane of the plates. This allows the connector 52 to primarily bear tensile or compressive forces, while the pin primarily bears shear forces, effectively preventing bending deformation of the connector 52 or pin jamming. More importantly, the parallel arrangement ensures that the movement trajectory of the connector 52 is consistent with the arrangement direction of the limiting through holes 12a on the first connecting plate 12, ensuring a stable and smooth adjustment process.

[0038] Furthermore, the second adjustment mechanism 5 is housed within a frame or housing, and this frame or housing is fitted against the first connecting plate 12. A limiting protrusion 521 extends from the side of the frame or housing that fits against the first connecting plate 12. The end of the second connecting plate 51 near the gripper 11 extends out of the frame or housing, or the gripper 11 extends into the frame or housing and connects to the second connecting plate 51. The specific position of the other end of the second connecting plate 51 relative to the frame or housing is not limited; it can be inside or outside the frame or housing. Housed the second adjustment mechanism 5 within the frame or housing, ensuring stability during the adjustment process and preventing collisions with the connecting member 52 after adjustment, further improving the safety of the device during use.

[0039] In a preferred embodiment, the support mechanism 2 includes a first support plate 21 and a second support plate 22. The second support plate 22 is connected to the fixing mechanism 1 through the first support plate 21, and the lifting mechanism 3 is disposed on the second support plate 22.

[0040] Specifically, the first support plate 21 connects the fixing mechanism 1 and the second support plate 22, so as to smoothly and directly transmit the supporting force transmitted by the fixing mechanism 1 to the second support plate 22. The second support plate 22 serves as a dedicated installation carrier for the lifting mechanism 3, providing a stable installation foundation for the lifting mechanism 3, and at the same time transmitting the lifting reaction force of the lifting mechanism 3 to the first support plate 21. Of course, the second support plate 22 can also be placed directly on other stable structures of the belt conveyor.

[0041] This design simplifies the complex support structure into a combination of two plates, which can be assembled easily through simple steel plate cutting and welding or bolt connection. The second support plate 22 serves as a dedicated mounting carrier for the lifting mechanism 3. Its plate size and thickness can be designed according to the dimensions of the lifting mechanism 3, such as the size of the jack 31 base, allowing for a large-area fit between the lifting mechanism 3 and the second support plate 22. This prevents the lifting mechanism 3 from slipping during lifting operations and improves the stability of the lifting operation.

[0042] In a preferred embodiment, the support mechanism 2 further includes a third support plate 23. One end of the third support plate 23 is connected to the surface of the first support plate 21, and the second end of the third support plate 23 is connected to the surface of the second support plate 22 and located on one side of the bottom of the lifting mechanism 3. One end of the third support plate 23 is fixed to the first support plate 21, and the other end is fixed to the second support plate 22, forming a triangular support structure. This triangle transforms the bending moment that was originally going to act on the connection point into tensile and compressive forces along the length of the third support plate 23, thereby greatly enhancing the rigidity of the entire support mechanism 2 and its ability to resist deformation.

[0043] With this configuration, when lifting the heavy conveyor belt, the support mechanism 2 bears a huge load. The third support plate 23, by forming a triangular stabilizing structure, improves the stability of the structure and further ensures safety during the lifting process. More importantly, the third support plate 23 is located on one side of the bottom of the lifting mechanism 3, acting as a lateral stop to prevent the lifting mechanism 3 from slipping when subjected to unexpected lateral forces, further enhancing operational safety.

[0044] In a preferred embodiment, the lifting mechanism 3 includes a jack 31 and a crowbar 32. The jack 31 is connected to the support mechanism 2 and provides a controllable lifting force. The crowbar 32 is connected to the lifting end of the jack 31. Specifically, the crowbar 32 is located below the belt. Furthermore, the crowbar 32 can be configured as a rod-shaped structure, with one end positioned between the top of the jack 31 and the belt, and the other end extending outward from the belt. By pressing down or lifting the other end of the crowbar 32, the height of the belt can be further increased, thereby further expanding the operating space.

[0045] With this setup, the pressure handle of the jack 31 can be directly controlled to achieve a smooth belt rise. Combined with the crowbar 32, it ensures sufficient operating space for replacing the idler roller and ensures the safety of the operator. At the same time, the crowbar 32, as a force transmission medium, avoids the metal hard contact of the lifting end of the jack 31 directly acting on the belt surface, preventing the lifting end from scratching or damaging the belt.

[0046] In a preferred embodiment, the lifting mechanism 3 further includes a first anti-slip component 33 and a second anti-slip component 34. The first anti-slip component 33 is disposed at the bottom of the jack 31 and connected to the support mechanism 2, increasing the friction between the bottom of the jack 31 and the support mechanism 2, and preventing relative slippage between the jack 31 and the support mechanism 2 during operation. The second anti-slip component 34 is disposed at the lifting end of the jack 31 and connected to the crowbar 32, increasing the friction between the lifting end of the jack 31 and the crowbar 32, preventing relative slippage between the two during lifting operations, and ensuring stable force transmission. Specifically, the first anti-slip component 33 is tightly fitted to the contact surface between the bottom of the jack 31 and the support mechanism 2. Through its own anti-slip structure, such as anti-slip texture or rubber material, it increases the static friction between the jack 31 and the support mechanism 2, offsetting the horizontal sliding force generated by the jack 31 during the lifting operation, and preventing relative slippage between the jack 31 and the support mechanism 2. The second anti-slip component 34 is tightly fitted to the contact surface between the lifting end of the jack 31 and the crowbar 32. Through its own anti-slip structure, it increases the static friction between the two, offsetting the relative slippage force generated when the lifting end moves upward, preventing relative slippage between the lifting end and the crowbar 32, and ensuring that the lifting force of the jack 31 can be smoothly and without loss transmitted to the crowbar 32, and then to the belt.

[0047] With this configuration, the first anti-slip component 33 and the second anti-slip component 34 achieve anti-slip locking from the bottom and lifting end of the jack 31, respectively, preventing slippage between the jack 31 and the support mechanism 2, and between the lifting end and the crowbar 32 during lifting operations. This ensures the overall structural stability of the lifting mechanism 3, making the transmission of lifting force smoother. It also effectively prevents slippage of the jack 31 and detachment of the crowbar 32, further improving the safety of roller replacement operations. Furthermore, the first anti-slip component 33 and the second anti-slip component 34 act as contact intermediaries, preventing direct hard contact between the bottom and lifting end of the jack 31 and other components, preventing scratches and wear on the contact surfaces, effectively protecting the contact surfaces of the jack 31 and the crowbar 32, and extending the service life of the overall structure.

[0048] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of the invention and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of the invention should be included within the protection scope of the invention. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A device for replacing idler rollers of a belt conveyor, characterized in that, The device includes a fixing mechanism (1), a supporting mechanism (2) and a lifting mechanism (3), wherein the fixing mechanism (1) is connected to the lifting mechanism (3) through the supporting mechanism (2); The fixing mechanism (1) is detachably connected to the crossbeam (100) of the belt conveyor and is used to provide fixed support for the device; The support mechanism (2) is used to transmit the support force and adjust the relative position and connection angle between the fixing mechanism (1) and the lifting mechanism (3); The lifting mechanism (3) is used to provide lifting force and lift the belt upward to separate the belt from the idler roller to be replaced.

2. The device for replacing conveyor belt idlers according to claim 1, characterized in that, The fixing mechanism (1) includes a gripper (11) and a first connecting plate (12). The gripper (11) is connected to the first connecting plate (12). The gripper (11) is adapted to the crossbeam (100). The first connecting plate (12) is connected to the support mechanism (2).

3. The device for replacing conveyor belt idlers according to claim 2, characterized in that, The device further includes a first adjustment mechanism (4), the first connecting plate (12) and the support mechanism (2) are rotatably connected through the first adjustment mechanism (4), and the first adjustment mechanism (4) is used to adjust the included angle between the first connecting plate (12) and the support mechanism (2).

4. The device for replacing conveyor belt idlers according to claim 3, characterized in that, The device further includes a second adjustment mechanism (5), the gripper (11) and the first connecting plate (12) are connected through the second adjustment mechanism (5), and the second adjustment mechanism (5) is used to adjust the relative position of the gripper (11) and the first connecting plate (12).

5. The device for replacing conveyor belt idlers according to claim 4, characterized in that, The second adjustment mechanism (5) includes a second connecting plate (51) and a connector (52). The second connecting plate (51) is fixedly connected to the gripper (11), and the second connecting plate (51) is fixedly connected to the connector (52). The connector (52) is provided with a limiting protrusion (521). The first connecting plate (12) is provided with a plurality of limiting through holes (12a). The plurality of limiting through holes (12a) are arranged vertically along the axial direction of the connector (52). The limiting protrusion (521) is adapted to the limiting through hole (12a).

6. The apparatus for replacing conveyor belt idlers according to claim 5, characterized in that, The first connecting plate (12) and the second connecting plate (51) are arranged in parallel.

7. The device for replacing conveyor belt idlers according to claim 1, characterized in that, The support mechanism (2) includes a first support plate (21) and a second support plate (22). The second support plate (22) is connected to the fixing mechanism (1) through the first support plate (21). The lifting mechanism (3) is disposed on the second support plate (22).

8. The apparatus for replacing conveyor belt idlers according to claim 7, characterized in that, The support mechanism (2) further includes a third support plate (23), one end of which is connected to the surface of the first support plate (21), and the second end of which is connected to the surface of the second support plate (22) and located on one side of the bottom of the lifting mechanism (3).

9. The device for replacing conveyor belt idlers according to claim 1, characterized in that, The lifting mechanism (3) includes a jack (31) and a crowbar (32). The jack (31) is connected to the support mechanism (2), and the crowbar (32) is connected to the lifting end of the jack (31).

10. The apparatus for replacing conveyor belt idlers according to claim 9, characterized in that, The lifting mechanism (3) further includes a first anti-slip component (33) and a second anti-slip component (34). The first anti-slip component (33) is disposed at the bottom of the jack (31) and connected to the support mechanism (2). The second anti-slip component (34) is disposed at the lifting end of the jack (31) and connected to the crowbar (32).

Images