Auxiliary device for replacing carrier roller of belt conveyor

Abstract

The invention provides an auxiliary device for replacing a carrier roller of a belt conveyor, relates to the technical field of belt conveyors, and aims to solve the problem that an existing auxiliary device is inconvenient for operators to operate when a belt is jacked up. Comprising a jacking module, the jacking module comprises a fixing base, a first mandrel, a second mandrel and a jacking assembly, the fixing base is provided with an adjusting screw hole with the axis extending in the horizontal direction and a containing cavity communicating with the adjusting screw hole, and the containing cavity is provided with a lateral opening and a top opening; the first mandrel comprises a threaded section and a transmission section, the threaded section is spirally connected to the adjusting screw hole, and the transmission section is located in the containing cavity; the second core shaft comprises a connecting section and a driving section, a circumferential limiting structure is arranged between the connecting section and the transmission section, and the driving section is rotationally installed on the fixing base and exposed out of the lateral opening; the jacking assembly is installed at the top opening in a vertically sliding mode, the transmission section and the driving section are each provided with a conical surface part, and the jacking assembly is provided with an inclined surface part in sliding fit with the conical surface parts. The method is convenient to operate.

Description

Technical Field

[0001] This application relates to the field of belt conveyor technology, and more specifically, to an auxiliary device for changing belt conveyor idlers. Background Technology

[0002] Belt conveyors, also known as belt conveyors, are indispensable continuous conveying equipment in industries such as mining, ports, and building materials. Idler rollers, as key load-bearing and guiding components of belt conveyors, are numerous and constantly withstand material impact, wear, corrosion, and eccentric loads, making them one of the most vulnerable parts of the equipment. Once idler rollers fail, it will lead to conveyor belt misalignment, accelerated wear, increased energy consumption, and even production shutdowns. Therefore, timely replacement of idler rollers is crucial to ensuring the stable operation of belt conveyors.

[0003] In existing technology, when replacing idler rollers, an auxiliary device is needed to lift the belt first to separate it from the idler roller before the replacement operation can be performed. However, when the existing auxiliary device needs to lift the belt, the operator needs to reach under the belt to work, which is inconvenient for the operator due to the narrow space under the belt. Summary of the Invention

[0004] The purpose of this application is to provide an auxiliary device for changing belt conveyor idlers, so as to solve the technical problem that when existing auxiliary devices need to lift the belt, operators need to put their hands under the belt to perform the operation, which is inconvenient for operators due to the narrow space under the belt.

[0005] The belt conveyor idler replacement auxiliary device provided in this application includes a lifting module, which includes a fixed base, a first spindle, a second spindle, and a lifting assembly. The fixed base is provided with an adjusting screw hole extending horizontally along its axis and a receiving cavity communicating with the adjusting screw hole. The receiving cavity has a side opening and a top opening. The first spindle includes a threaded section and a transmission section. The threaded section is helically connected to the adjusting screw hole, and the transmission section is located in the receiving cavity. The second spindle includes a connecting section and a driving section. A circumferential limiting structure is provided between the connecting section and the transmission section. The driving section is rotatably mounted on the fixed base and exposed through the side opening. The lifting assembly is slidably mounted on the top opening. Both the transmission section and the driving section are provided with a conical surface. The diameter of the conical surface gradually increases from the first spindle to the second spindle. The lifting assembly is provided with an inclined surface that slides with the conical surface.

[0006] Furthermore, the fixed base also includes a first support roller and a second support roller arranged side by side in a horizontal direction. The first support roller and the second support roller are rotatably disposed in the receiving cavity, and the axes of the first support roller and the second support roller are parallel to the axis of the first mandrel. The driving section and the transmission section are both supported by the first support roller and the second support roller.

[0007] Furthermore, the circumferential limiting structure includes a transmission groove and a protrusion that inserts into the transmission groove. The transmission groove is provided on the side of the transmission section facing the connecting section, and the protrusion is provided on the side of the connecting section facing the transmission section. The transmission groove is a non-circular groove.

[0008] Furthermore, the end face of the drive segment opposite to the connecting segment is provided with a drive groove, which is a slotted groove, a cross groove, or a hexagonal groove.

[0009] Furthermore, the lifting assembly includes a sliding seat, a support column, and a tray. The sliding seat is slidably installed in the top opening, and the tray is spaced apart from the sliding seat in the vertical direction. One end of the support column is detachably and fixedly connected to the sliding seat, and the other end of the support column is detachably and fixedly connected to the tray.

[0010] Furthermore, both ends of the support column are provided with external threads, and the external threads at both ends of the support column rotate in opposite directions. The sliding seat and the support plate are both provided with threaded holes for engaging with the external threads of the support column.

[0011] Furthermore, the number of support columns is multiple, and the multiple support columns are arranged at intervals.

[0012] Furthermore, the belt conveyor idler replacement auxiliary device also includes a base plate, and the lifting module is provided in two sets, which are spaced apart and are both installed on the base plate through the fixing seat; the base plate is provided with an avoidance notch between the two sets of lifting modules, and the avoidance notch is used to avoid the idler to be replaced.

[0013] Furthermore, the belt conveyor roller replacement auxiliary device also includes a linkage mechanism. The second spindles of the two sets of lifting modules are connected by the linkage mechanism. The linkage mechanism is configured to drive the other second spindle to rotate synchronously when one of the second spindles rotates.

[0014] Furthermore, the linkage mechanism includes a first toothed portion, a second toothed portion, and a transmission chain. The first toothed portion is formed on the outer periphery of the drive section of one set of lifting modules, and the second toothed portion is formed on the outer periphery of the drive section of another set of lifting modules. The transmission chain is sleeved on and supported by both the first toothed portion and the second toothed portion.

[0015] The beneficial effects of the belt conveyor idler roller replacement auxiliary device of this application are: By setting up a belt conveyor idler replacement auxiliary device, mainly composed of a fixed seat, a first mandrel, a second mandrel, and a lifting assembly, the fixed seat can be placed on the bracket for installing the idler to be removed, so that the belt conveyor idler replacement auxiliary device is below the belt and the side opening of the fixed seat faces outward. When it is necessary to lift the belt to remove it from the support of the idler, the operator can apply a rotational force to the drive section of the second mandrel through the side opening, causing the connecting section to rotate. At this time, under the action of the circumferential limiting structure between the connecting section and the transmission section, the rotational force of the connecting section will be transmitted to the transmission section, causing the threaded section to be helically fed in the adjusting screw hole.

[0016] During the above process, as the second spindle is driven to rotate, the first and second spindles rotate synchronously and simultaneously move horizontally. At this time, the cone-shaped surfaces of both the drive section and the transmission section cooperate with the inclined surfaces of the lifting assembly to drive the lifting assembly upward, thereby lifting the belt to facilitate the disassembly of the idler roller by the operator.

[0017] The belt conveyor idler replacement auxiliary device, through the above-mentioned configuration, enables vertical output to be achieved by horizontal feed, transferring the work that originally needed to be completed in the vertical direction to the horizontal direction. This allows the operator to apply rotational force to the second spindle laterally when the belt needs to be lifted, without having to reach under the belt to perform the work. The spaciousness effectively improves the situation where it is inconvenient for operators to operate due to the narrow space under the belt.

[0018] Furthermore, by setting conical surfaces in both the drive section and the transmission section, and setting inclined surfaces at different positions of the lifting assembly to cooperate with the conical surfaces, while realizing the lifting drive of the lifting assembly, on the one hand, lifting force can be provided on both conical surfaces, which can double the lifting force. This means that when the output lifting force remains unchanged, only half the force needs to be applied by the operator, making the lifting process more labor-saving. On the other hand, while the first spindle moves to drive the lifting assembly, the second spindle also moves to drive the lifting assembly. The lifting assembly is driven in different parts, avoiding jamming of the lifting assembly during movement.

[0019] In addition, by setting a threaded section on the second spindle to cooperate with the adjusting screw hole of the fixed seat, not only is the adjusting screw hole provided with a horizontal movement margin for the second spindle, but also the cooperation between the adjusting screw hole and the threaded section can achieve self-locking after the rotational force applied to the second spindle disappears, so that the lifting assembly is kept at the current height position, thus eliminating the need for operators to lift the belt. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments or background art of this application, the drawings used in the description of the embodiments or background art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 A side cross-sectional view of the belt conveyor idler replacement auxiliary device provided in the embodiment of this application when the lifting module is in an unlifted state; Figure 2 A side cross-sectional view of the belt conveyor idler replacement auxiliary device provided in the embodiment of this application when the lifting module is in the lifting state; Figure 3 This is a front view of the belt conveyor roller replacement auxiliary device provided in the embodiments of this application in its use state; Figure 4 This is a top view of the belt conveyor idler replacement auxiliary device provided in the embodiment of this application in its use state.

[0022] Explanation of reference numerals in the attached figures: 010 - Idler roller to be replaced; 020 - Belt; 100 - Lifting module; 200 - Base plate; 300 - Linkage mechanism; 110 - Fixed base; 120 - First spindle; 130 - Second spindle; 140 - Lifting assembly; 111 - Adjusting screw hole; 112 - Receiving cavity; 113 - First support roller; 114 - Second support roller; 121 - Threaded section; 122 - Transmission section; 101 - Conical section; 131-Connecting section; 132-Drive section; 1321-Drive slot; 141-Sliding seat; 1411-Sloping part; 142-Support column; 143-Panel; 210 - Avoidance gap; 310 - First toothed section; 320 - Second toothed section; 330 - Transmission chain. Detailed Implementation

[0023] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0024] Figure 1 This is a side cross-sectional view of the belt conveyor idler replacement auxiliary device provided in this embodiment when the lifting module 100 is in an unlifted state. Figure 2 This is a side cross-sectional view of the belt conveyor idler replacement auxiliary device provided in this embodiment when the lifting module 100 is in the lifting state. Figure 1 and Figure 2 As shown, this embodiment provides an auxiliary device for replacing conveyor rollers, including a lifting module 100. Specifically, the lifting module 100 includes a fixed base 110, a first spindle 120, a second spindle 130, and a lifting assembly 140. The fixed base 110 is provided with an adjusting screw hole 111 extending horizontally along its axis and a receiving cavity 112 communicating with the adjusting screw hole 111. The receiving cavity 112 has a lateral opening and a top opening. The first spindle 120 includes a threaded section 121 and a transmission section 122. The threaded section 121 is helically connected to the adjusting screw hole 111, and the transmission section 122 is located in the receiving cavity. The cavity 112; the second spindle 130 includes a connecting section 131 and a driving section 132. A circumferential limiting structure is provided between the connecting section 131 and the transmission section 122. The driving section 132 is rotatably mounted on the fixed base 110 and exposed through a side opening. The lifting assembly 140 is slidably mounted on the top opening. Both the transmission section 122 and the driving section 132 are provided with a conical surface 101. The diameter of the conical surface 101 gradually increases from the first spindle 120 to the second spindle 130. The lifting assembly 140 is provided with an inclined surface 1411 that slides with the conical surface 101.

[0025] By setting up a belt conveyor idler replacement auxiliary device mainly composed of a fixed base 110, a first spindle 120, a second spindle 130, and a lifting assembly 140, the fixed base 110 can be placed on a bracket for installing the idler to be removed, so that the belt conveyor idler replacement auxiliary device is below the belt 020, and the side opening of the fixed base 110 faces outward. When it is necessary to lift the belt 020 so that the belt 020 can be removed from the support of the idler, the operator can apply a rotational force to the drive section 132 of the second spindle 130 through the side opening, causing the connecting section 131 to rotate. At this time, under the action of the circumferential limiting structure of the connecting section 131 and the transmission section 122, the rotational force of the connecting section 131 will be transmitted to the transmission section 122, so that the threaded section 121 is spirally fed in the adjusting screw hole 111.

[0026] During the above process, as the second spindle 130 is driven to rotate, the first spindle 120 and the second spindle 130 rotate synchronously, and the first spindle 120 and the second spindle 130 also generate a horizontal movement stroke. At this time, under the cooperation of the tapered surface 101 of both the drive section 132 and the transmission section 122 and the inclined surface 1411 of the lifting assembly 140, the lifting assembly 140 is driven to rise, thereby lifting the belt 020 through the lifting assembly 140 to facilitate the disassembly of the idler roller by the operator.

[0027] The belt conveyor idler replacement auxiliary device, through the above-mentioned configuration, enables vertical output to be achieved by horizontal feed, transferring the work that originally needed to be completed in the vertical direction to the horizontal direction. This means that when it is necessary to lift the belt 020, the operator only needs to apply a rotational force to the second spindle 130 from the side, without having to put their hands under the belt 020 to perform the work. The space is open, effectively improving the situation where it is inconvenient for operators to operate due to the narrow space under the belt 020.

[0028] Furthermore, by providing conical surfaces 101 in both the drive section 132 and the transmission section 122, and by providing inclined surfaces 1411 at different positions on the lifting assembly 140 to cooperate with the conical surfaces 101, the lifting assembly 140 can be driven to rise and fall simultaneously. On the one hand, lifting force can be provided in the two conical surfaces 101, which can double the lifting force. This means that when the output lifting force remains constant, only half the force needs to be applied by the operator, making the lifting process more labor-saving. On the other hand, while the first spindle 120 moves to drive the lifting assembly 140, the second spindle 130 also moves to drive the lifting assembly 140. The lifting assembly 140 is driven in different parts, preventing the lifting assembly 140 from jamming during movement.

[0029] In addition, by providing a threaded section 121 on the second spindle 130 to cooperate with the adjusting screw hole 111 of the fixed seat 110, not only is the adjusting screw hole 111 used to provide the second spindle 130 with a horizontal movement margin, but also, after the rotational force applied to the second spindle 130 disappears, the cooperation between the adjusting screw hole 111 and the threaded section 121 can achieve self-locking, so that the lifting assembly 140 is kept at the current height position, thus eliminating the need for operators to lift the belt 020.

[0030] Figure 3 This is a front view of the belt conveyor idler replacement auxiliary device provided in this embodiment in its operating state. Please continue to refer to... Figure 1 and Figure 2 and combined Figure 3In this embodiment, the fixed base 110 may further include a first support roller 113 and a second support roller 114 arranged side by side in the horizontal direction. The first support roller 113 and the second support roller 114 are both rotatably arranged in the receiving cavity 112, and the axes of the first support roller 113 and the second support roller 114 are parallel to the axis of the first spindle 120. The driving section 132 and the transmission section 122 are both supported by the first support roller 113 and the second support roller 114.

[0031] When a rotational force is applied to the drive section 132 of the second spindle 130, the second spindle 130 will rotate relative to the fixed base 110. Under the action of the circumferential limiting structure between the connecting section 131 and the transmission section 122, the rotation will be further transmitted to the first spindle 120, causing the first spindle 120 to rotate synchronously. By setting the first support roller 113 and the second support roller 114, on the one hand, when the second spindle 130 rotates, the sliding friction between the second spindle 130 and the fixed seat 110 can be converted into rolling friction to reduce the resistance when the second spindle 130 rotates. On the other hand, by supporting the transmission section 122, the first support roller 113 and the second support roller 114 together with the adjusting screw hole 111 form a two-point support, so that the first spindle 120 is supported by two points. Thus, the weight of the first spindle 120 from the lifting assembly 140 can be unloaded to the fixed seat 110 through the first support roller 113 and the second support roller 114, avoiding excessive force on the first spindle 120 and the second spindle 130.

[0032] In this embodiment, the circumferential limiting structure includes a transmission groove and a protruding post that is inserted into the transmission groove. The transmission groove is provided on the side of the transmission section 122 facing the connecting section 131, and the protruding post is provided on the side of the connecting section 131 facing the transmission section 122. The transmission groove is a non-circular groove.

[0033] This configuration of the circumferential limiting structure enables reliable transmission of the rotational force from the second spindle 130 to the first spindle 120, and it is simple in structure and easy to process and manufacture.

[0034] Please continue to refer to Figure 1 and Figure 2 In this embodiment, the end face of the drive segment 132 facing away from the connecting segment 131 is provided with a drive groove 1321, which is a hexagonal groove.

[0035] This configuration allows operators to use tools to work with the drive section 132 of the second spindle 130 to apply rotational force to the second spindle 130.

[0036] In other embodiments, the drive slot 1321 may also be configured as a slot or a cross slot.

[0037] Please continue to refer to Figure 1 and Figure 2 In this embodiment, the lifting assembly 140 may include a sliding seat 141, a support column 142, and a support plate 143. Specifically, the sliding seat 141 is slidably installed in the top opening, the support plate 143 is spaced apart from the sliding seat 141 in the vertical direction, one end of the support column 142 is detachably and fixedly connected to the sliding seat 141, and the other end of the support column 142 is detachably and fixedly connected to the support plate 143.

[0038] This design provides two advantages: firstly, it allows the lifting assembly 140 to have a certain support height, increasing the height of the conveyor belt roller replacement auxiliary device in this embodiment, so that the lifting assembly 140 can cooperate with the belt 020 to lift the belt 020; secondly, the detachable and fixed connection between the two ends of the support column 142 and the sliding seat 141 and the pallet 143 facilitates the removal of the pallet 143 and the support column 142 for carrying and transportation, effectively reducing the space occupied by the conveyor belt roller replacement auxiliary device in this embodiment during carrying and transportation, thereby improving the convenience of carrying and transportation.

[0039] Please continue to refer to Figure 1 and Figure 2 In this embodiment, both ends of the support column 142 are provided with external threads, and the external threads at both ends of the support column 142 rotate in opposite directions. The sliding seat 141 and the support plate 143 are both provided with threaded holes for use in conjunction with the external threads of the support column 142.

[0040] With the above configuration, not only can the two ends of the support column 142 be detachably and fixedly connected to the sliding seat 141 and the support plate 143 respectively, but also, when it is necessary to use the support column 142 to assemble the support plate 143 and the sliding seat 141 together or to remove the support column 142 from between the support plate 143 and the sliding seat 141, simply by turning the support column 142, the support column 142 can be connected to or separated from the support plate 143 and the sliding seat 141 at the same time, which is beneficial to improving the assembly and disassembly efficiency of the lifting assembly 140.

[0041] Please continue to refer to Figure 1 and Figure 2 In this embodiment, there are multiple support columns 142, which are arranged at intervals.

[0042] By providing multiple support columns 142 between the pallet 143 and the sliding seat 141, the lifting stability is good during the process of using the pallet 143 to contact the belt 020 to lift the belt 020, and the stress concentration at the support column 142 can be improved.

[0043] Figure 4 This is a top view of the belt conveyor idler replacement auxiliary device provided in this embodiment in its operating state. Please continue to refer to... Figure 3and combined Figure 4 In this embodiment, the belt conveyor idler replacement auxiliary device also includes a base plate 200. Specifically, two sets of lifting modules 100 are provided, and the two sets of lifting modules 100 are spaced apart and are both installed on the base plate 200 through fixing seats 110. The base plate 200 is provided with an avoidance notch 210 between the two sets of lifting modules 100, wherein the avoidance notch 210 is used to avoid the idler 010 to be replaced.

[0044] When using this belt conveyor idler replacement auxiliary device, please continue to refer to... Figure 4 The two lifting modules 100 can be positioned on both sides of the idler roller 010 to be replaced. During this process, the clearance notch 210 provided on the base plate 200 is used to avoid the idler roller 010 to be replaced. When it is necessary to lift the belt 020, the two lifting modules 100 can be activated to lift the belt 020 simultaneously on both sides of the idler roller 010 to be replaced.

[0045] This configuration allows the two lifting modules 100 to lift the belt 020 by a small stroke to meet the installation and removal requirements of the idler roller 010 to be replaced. This effectively avoids the problem that when the belt 020 is only lifted on one side of the idler roller 010 to be replaced, it will sag on the other side, requiring the belt 020 to be lifted by a large stroke to meet the installation and removal requirements of the idler roller 010 to be replaced. On the other hand, it also allows the belt 020 to be lifted at multiple positions simultaneously, avoiding secondary wear caused by concentrated force on the belt 020.

[0046] Please continue to refer to Figure 4 In this embodiment, along the axial direction of the roller to be replaced 010, the length of the lifting assembly 140 is approximately the same as the length of the roller to be replaced 010.

[0047] Please continue to refer to Figure 4 In this embodiment, the belt conveyor roller replacement auxiliary device may further include a linkage mechanism 300, wherein the second spindles 130 of the two sets of lifting modules 100 are connected by the linkage mechanism 300, and the linkage mechanism 300 is configured to drive the other second spindle 130 to rotate synchronously when one of the second spindles 130 rotates.

[0048] By setting up a linkage mechanism 300, when the operator applies a rotational force to the second spindle 130 of one of the two lifting modules 100, the rotational force can be synchronously transmitted to the second spindle 130 of the other lifting module 100, so that the second spindle 130 of the other lifting module 100 can rotate synchronously. This, in turn, enables the synchronous lifting components 140 of the two lifting modules 100 to be lifted synchronously, allowing the belts 020 on both sides of the idler roller 010 to be replaced to be lifted synchronously. This setup not only eliminates the need for the operator to apply rotational force to both sides of the idler roller 010 to be replaced simultaneously, reducing labor intensity, but also achieves two lifting outputs with a single rotational input, resulting in high efficiency.

[0049] Please continue to refer to Figure 3 and Figure 4 In this embodiment, the linkage mechanism 300 may include a first toothed portion 310, a second toothed portion 320, and a transmission chain 330. Specifically, the first toothed portion 310 is formed on the outer periphery of the drive section 132 of a set of lifting modules 100, the second toothed portion 320 is formed on the outer periphery of the drive section 132 of another set of lifting modules 100, and the transmission wheel is sleeved on and supported by both the first toothed portion 310 and the second toothed portion 320.

[0050] This design, which forms a first toothed portion 310 and a second toothed portion 320 on the outer periphery of the drive section 132 of the two sets of lifting modules 100 respectively, achieves the integration of the first toothed portion 310 and the second toothed portion 320 with the corresponding lifting module 100. While realizing the linkage effect of the two sets of lifting modules 100, it also reduces the number of parts and helps to improve assembly efficiency.

[0051] It should be noted that in this embodiment, the working principle of the belt conveyor roller replacement auxiliary device is only schematically illustrated in the accompanying drawings. In fact, the inclined surface 1411 can have a large angle and an effective engagement length so that when the second spindle 130 and the first spindle 120 are fed forward, the sliding seat 141 has a large upward movement stroke to ensure that the belt 020 can be lifted to a sufficient height.

[0052] While this application discloses the above information, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of this application; therefore, the scope of protection of this application shall be determined by the scope defined in the claims.

[0053] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the term "comprising" or any other variations thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0054] In the above embodiments, descriptions of directions such as "up" and "down" are based on the accompanying drawings.

[0055] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application.

[0056] Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An auxiliary device for changing idler rollers of a belt conveyor, characterized in that, The system includes a lifting module (100), which comprises a fixed base (110), a first spindle (120), a second spindle (130), and a lifting assembly (140). The fixed base (110) is provided with an adjusting screw hole (111) extending horizontally along its axis and a receiving cavity (112) communicating with the adjusting screw hole (111). The receiving cavity (112) has a lateral opening and a top opening. The first spindle (120) includes a threaded section (121) and a transmission section (122). The threaded section (121) is helically connected to the adjusting screw hole (111), and the transmission section (122) is located in the receiving cavity (112). The second spindle (130) includes... The connecting section (131) and the driving section (132) are provided with a circumferential limiting structure between the connecting section (131) and the transmission section (122). The driving section (132) is rotatably mounted on the fixed base (110) and exposed through the lateral opening. The lifting assembly (140) is slidably mounted on the top opening. Both the transmission section (122) and the driving section (132) are provided with a conical surface (101). The diameter of the conical surface (101) gradually increases from the first mandrel (120) to the second mandrel (130). The lifting assembly (140) is provided with an inclined surface (1411) that slides with the conical surface (101).

2. The belt conveyor idler roller replacement auxiliary device according to claim 1, characterized in that, The fixed base (110) further includes a first support roller (113) and a second support roller (114) arranged side by side in the horizontal direction. The first support roller (113) and the second support roller (114) are rotatably arranged in the receiving cavity (112), and the axes of the first support roller (113) and the second support roller (114) are parallel to the axis of the first spindle (120). The driving section (132) and the transmission section (122) are both supported on the first support roller (113) and the second support roller (114).

3. The belt conveyor idler replacement auxiliary device according to claim 1, characterized in that, The circumferential limiting structure includes a transmission groove and a protrusion that is inserted into the transmission groove. The transmission groove is provided on the side of the transmission section (122) facing the connecting section (131), and the protrusion is provided on the side of the connecting section (131) facing the transmission section (122). The transmission groove is a non-circular groove.

4. The belt conveyor idler replacement auxiliary device according to claim 1, characterized in that, The drive section (132) has a drive groove (1321) on its end face away from the connecting section (131). The drive groove (1321) is a slot, a cross groove, or a hexagonal groove.

5. The belt conveyor idler replacement auxiliary device according to claim 1, characterized in that, The lifting assembly (140) includes a sliding seat (141), a support column (142), and a tray (143). The sliding seat (141) is slidably installed in the top opening. The tray (143) is spaced apart from the sliding seat (141) in the vertical direction. One end of the support column (142) is detachably and fixedly connected to the sliding seat (141), and the other end of the support column (142) is detachably and fixedly connected to the tray (143).

6. The belt conveyor idler replacement auxiliary device according to claim 5, characterized in that, Both ends of the support column (142) are provided with external threads, and the external threads at both ends of the support column (142) rotate in opposite directions. The sliding seat (141) and the support plate (143) are both provided with threaded holes for cooperating with the external threads of the support column (142).

7. The belt conveyor idler roller replacement auxiliary device according to claim 5, characterized in that, The number of the support columns (142) is multiple, and the multiple support columns (142) are arranged at intervals.

8. The belt conveyor idler roller replacement auxiliary device according to any one of claims 1-7, characterized in that, The belt conveyor idler replacement auxiliary device also includes a base plate (200). Two sets of lifting modules (100) are provided. The two sets of lifting modules (100) are spaced apart and are both installed on the base plate (200) through the fixing seat (110). The base plate (200) is provided with a clearance notch (210) between the two sets of lifting modules (100). The clearance notch (210) is used to avoid the idler (010) to be replaced.

9. The belt conveyor idler replacement auxiliary device according to claim 8, characterized in that, The belt conveyor roller replacement auxiliary device also includes a linkage mechanism (300). The second spindles (130) of the two sets of lifting modules (100) are connected by the linkage mechanism (300). The linkage mechanism (300) is configured to drive the other second spindle (130) to rotate synchronously when one of the second spindles (130) rotates.

10. The belt conveyor idler roller replacement auxiliary device according to claim 9, characterized in that, The linkage mechanism (300) includes a first toothed portion (310), a second toothed portion (320), and a transmission chain (330). The first toothed portion (310) is formed on the outer periphery of the drive section (132) of one set of lifting modules (100), and the second toothed portion (320) is formed on the outer periphery of the drive section (132) of another set of lifting modules (100). The transmission chain (330) is sleeved on and supported by both the first toothed portion (310) and the second toothed portion (320).

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