Auxiliary tool for replacing carrier roller of conveying chain

Abstract

The utility model relates to the technical field of carrier roller replacing equipment, in particular to a conveying chain carrier roller replacing auxiliary tool which comprises a scissor jack, a supporting plate and a rocker, the supporting plate is located on the top of the scissor jack, the scissor jack is provided with a lead screw used for adjusting lifting of the scissor jack, and the rocker is located on the supporting plate. A hanging ring is arranged at one end of the lead screw, and a hook connected with the hanging ring in a hanging mode is arranged at one end of the rocker. The rocking bar further comprises a telescopic rod and a handle, one end of the telescopic rod is connected with the hook, the other end of the telescopic rod is connected with the handle, and the telescopic rod can stretch out and draw back to adjust the distance between the hook and the handle. The length of the telescopic rod can be adjusted according to the position of the carrier roller, and then the length of the rocker is adjusted, so that the scissor jack and the supporting plate on the scissor jack are conveniently pushed to different depths so as to jack conveying chains at different positions to replace the carrier roller, and the universality of the tool is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of idler replacement equipment, and more specifically, to an auxiliary tool for replacing a conveyor chain idler. Background Technique

[0002] According to the current workshop process layout, the vehicles coming out of the rain line directly enter the PDI (Pre-Delivery Inspection) conveyor line. The amount of water carried by the vehicle body is relatively large, dripping onto the surface of the PDI conveyor chain, and seeping into the foundation pit below the conveyor chain through the gaps on the conveyor chain surface, resulting in high humidity in the foundation pit and a damp overall environment, causing a large number of idlers in the conveyor line foundation pit to rust, making harsh abnormal noises during rotation operation, and the rusty idlers need to be replaced.

[0003] Currently, the entire idler crossbeam is removed to replace the rusty idlers. However, due to the narrow space, the operators cannot enter the middle of the foundation pit. Coupled with its increased weight, the crossbeam is not easy to operate during reinstallation. It is purely disassembled and assembled by manpower, with long working hours and a risk of falling and injuring people.

[0004] The prior art discloses a belt conveyor idler replacement device, including a support frame for the idler and a forward bracket installed on the support frame. A crossbeam is provided on the support frame directly below the idler. The forward bracket includes a base, a telescopic frame, and a support plate. The base is fixed on the crossbeam and is telescopic. The telescopic frame is fixed on the base. The support plate is horizontally fixed at the upper end of the telescopic frame. The telescopic frame is a scissor lift table, and a lifting screw rod is provided on the telescopic frame to adjust the rise and fall of the telescopic frame. A perforation is provided at the end of the lifting screw rod, and a rocker is horizontally suspended on the perforation. The rocker includes a hook, a rotating rod, and a handle. The rotating rod is a horizontal solid straight rod. The end of the rotating rod is inclined downward and then bent vertically upward to form a hook. The other end of the rotating rod is vertically bent and then bent outward vertically to form a handle. In this solution, the telescopic frame is raised by turning the handle to support the belt for idler replacement. However, the length of the rocker is fixed, and it is only suitable for assisting in the replacement of idlers at a single position, with a single use scenario and a small scope of application. Content of the Utility Model

[0005] The purpose of the utility model is to overcome the deficiency of the small scope of application of the existing replacement device, and provide an auxiliary tool for replacing a conveyor chain idler, which can adjust the position of the tool to facilitate the replacement of idlers at different positions and improve the universality of the tool.

[0006] To solve the above technical problems, the technical solution adopted by the utility model is:

[0007] Provided is an auxiliary tool for replacing a conveyor chain idler, which includes a scissor jack, a support plate, and a rocker. The support plate is located at the top of the scissor jack. The scissor jack is provided with a lead screw for adjusting the lifting of the scissor jack. One end of the lead screw is provided with a hanging ring, and one end of the rocker is provided with a hook that is hooked to the hanging ring. The rocker further includes a telescopic rod and a handle. One end of the telescopic rod is connected to the hook, and the other end of the telescopic rod is connected to the handle. The telescopic rod is telescopic to adjust the distance between the hook and the handle.

[0008] When using the auxiliary tool for replacing the conveyor chain idler of the present utility model, hook the hook of the rocker to the hanging ring at one end of the lead screw. Adjust the telescopic amount of the telescopic rod according to the distance between the position of the idler and the edge of the conveyor chain. Push the scissor jack and the support plate thereon into the designated target position inside the conveyor chain foundation pit through the rocker. Rotate the rocker to make the lead screw rotate, so that the scissor jack acts and the support plate at the top of the scissor jack rises. The support plate jacks up the conveyor chain pressing the idler. The support plate can increase the contact area with the conveyor chain, creating space for the replacement of the idler. Then, unhook the hook from the hanging ring and use the hook to hook out the idler to be replaced. The present utility model can adjust the length of the telescopic rod according to the position of the idler, and further adjust the length of the rocker, so as to facilitate pushing the scissor jack and the support plate thereon to different depths to jack up the conveyor chain at different positions for replacing the idler, improving the universality of the tool.

[0009] Further, the telescopic rod includes a first telescopic section and a second telescopic section. One end of the first telescopic section is connected to the hook, and one end of the second telescopic section is connected to the handle. The end of the first telescopic section away from the hook is slidably connected to the end of the second telescopic section away from the handle. At least two first connection holes are provided at the end of the first telescopic section away from the hook, and at least two second connection holes are provided at the end of the second telescopic section away from the handle. The first connection holes and the second connection holes are connected by fasteners. Connecting the first connection holes at different positions to the second connection holes at different positions through fasteners can adjust the length of the telescopic rod to adapt to the replacement of idlers at different positions.

[0010] Further, the telescopic rod includes a first telescopic section, an intermediate telescopic section, and a second telescopic section. One end of the first telescopic section is connected to the hook, and one end of the second telescopic section is connected to the handle. The end of the first telescopic section away from the hook is slidably connected to the end of the intermediate telescopic section close to the hook, and the end of the second telescopic section away from the handle is slidably connected to the end of the intermediate telescopic section close to the handle. At least two first connection holes are formed at the end of the first telescopic section away from the hook, at least two second connection holes are formed at the end of the second telescopic section away from the handle, third connection holes are respectively formed at both ends of the intermediate telescopic section, and the first connection holes and the second connection holes are respectively connected to the third connection holes at both ends of the intermediate telescopic section through fasteners. The setting of the intermediate telescopic section can further increase the adjustment range of the length of the telescopic rod and further improve the universality of the auxiliary tool for replacing the conveyor chain idler.

[0011] Further, the telescopic rod includes a first telescopic section, an intermediate telescopic section, and a second telescopic section. The intermediate telescopic section is sleeved on the outer periphery of the first telescopic section, and the second telescopic section is sleeved on the outer periphery of the intermediate telescopic section. One end of the first telescopic section is connected to the hook, and one end of the second telescopic section is connected to the handle. The end of the intermediate telescopic section close to the hook and the end of the first telescopic section away from the hook, and the end of the intermediate telescopic section close to the handle and the end of the second telescopic section away from the handle are respectively connected through a buckle structure. The pulling-out lengths of the first telescopic section and the intermediate telescopic section are fixed through two buckle structures respectively, preventing the rocker from shrinking during the process of pushing the scissor jack into the specified target position inside the conveyor chain foundation pit.

[0012] Further, the buckle structure includes a spring, a ball, and a through hole. One end of the spring is connected to the inner wall of the first telescopic section or the inner wall of the intermediate telescopic section, the other end of the spring is connected to the ball, the through hole is formed in the intermediate telescopic section or the second telescopic section, and the ball can be snap-connected to the through hole. During the process of pulling out the first telescopic section from the intermediate telescopic section and pulling out the intermediate telescopic section from the second telescopic section, the spring is compressed. When pulled out until the ball is aligned with the through hole, the ball pops out under the elastic force of the spring and is snap-connected to the through hole.

[0013] Further, the scissor jack includes a base, a top seat, a first lower arm, a second lower arm, a first upper arm, and a second upper arm. One end of the first lower arm and one end of the second lower arm are respectively hinged to the base. The other end of the first lower arm is hinged to one end of the first upper arm through a first hinge member. The other end of the second lower arm is hinged to one end of the second upper arm through a second hinge member. The other ends of the first upper arm and the second upper arm are respectively hinged to the top seat. The first hinge member and the second hinge member are respectively connected to both ends of the screw rod, so that when the screw rod rotates, the first hinge member and the second hinge member move in directions away from or towards each other. Since one end of the first lower arm and one end of the second lower arm are respectively hinged to the base, when the first hinge member and the second hinge member move towards each other, the tops of the first lower arm and the second lower arm move upward simultaneously. Similarly, since the end of the first upper arm away from the first hinge member and the end of the second upper arm away from the second hinge member are respectively hinged to the top seat, when the first hinge member and the second hinge member move towards each other, the top seat moves upward simultaneously, driving the support plate to rise and jack up the conveyor chain pressing on the idler roller, creating space for replacing the idler roller.

[0014] Further, first screw rod and a second screw rod with opposite spiral directions are respectively provided at both ends of the screw rod. The first hinge member is slidably connected to the first screw rod, and the second hinge member is slidably connected to the second screw rod. Since the spiral directions of the first screw rod and the second screw rod are opposite, when the screw rod rotates, the first hinge member and the second hinge member will move in directions away from or towards each other, realizing the rise or fall of the scissor jack and the support plate thereon.

[0015] Further, the support plate is made of stainless steel structure, which can prevent the support plate from rusting.

[0016] Further, the support plate is a structure with a cavity, which can reduce the weight of the support plate.

[0017] Further, the support plate is fixedly welded to the scissor jack to ensure that the middle part of the support plate corresponds to the middle part of the scissor jack, so as to realize the balanced jacking of the conveyor chain at the specified target position and facilitate the replacement of the idler roller.

[0018] Compared with the prior art, the beneficial effects of the conveyor chain idler roller replacement auxiliary tool of the present utility model are as follows:

[0019] The length of the telescopic rod can be adjusted according to the position of the idler roller, and then the length of the rocker can be adjusted, so as to facilitate pushing the scissor jack and the support plate thereon into different depths in the foundation pit to jack up the conveyor chain at different positions for replacing the idler roller, improving the universality of the tool. Description of the Drawings

[0020] Figure 1This is a schematic structural diagram of an auxiliary tool for replacing a conveyor chain idler in an embodiment of the present utility model;

[0021] Figure 2 This is a schematic structural diagram of a rocker when the telescopic rod retracts in an embodiment of the present utility model;

[0022] Figure 3 This is a schematic structural diagram of a rocker when the telescopic rod extends in an embodiment of the present utility model.

[0023] In the drawings: 1 - supporting plate; 2 - base; 3 - first lower arm; 4 - second lower arm; 5 - first upper arm; 6 - second upper arm; 7 - top seat; 8 - lead screw; 81 - hanging ring; 9 - rocker; 91 - hook; 92 - telescopic rod; 921 - first telescopic section; 922 - intermediate telescopic section; 923 - second telescopic section; 924 - buckle structure; 93 - handle. Detailed implementation manners

[0024] The present utility model will be further described below in conjunction with the detailed implementation manners. Among them, the drawings are only for illustrative purposes, showing only schematic diagrams rather than actual diagrams, and should not be construed as a limitation of this patent; in order to better illustrate the embodiments of the present utility model, some components in the drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0025] In the drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so the terms describing the positional relationship in the drawings are only for illustrative purposes and should not be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0026] Embodiment 1

[0027] An auxiliary tool for replacing a conveyor chain idler, as Figures 1 to 3 shown, includes a scissor jack, a supporting plate 1 and a rocker 9. The supporting plate 1 is located at the top of the scissor jack. The scissor jack is provided with a lead screw 8 for adjusting the lifting of the scissor jack. One end of the lead screw 8 is provided with a hanging ring 81, and one end of the rocker 9 is provided with a hook 91 for hanging with the hanging ring 81; the rocker 9 further includes a telescopic rod 92 and a handle 93. One end of the telescopic rod 92 is connected to the hook 91, and the other end of the telescopic rod 92 is connected to the handle 93. The telescopic rod 92 can be telescoped to adjust the distance between the hook 91 and the handle 93.

[0028] For the above-mentioned auxiliary tool for replacing the conveyor chain idler, during use, the hook 91 of the rocker 9 is hooked to the hanging ring 81 at one end of the lead screw 8. The telescopic amount of the telescopic rod 92 is adjusted according to the distance between the idler position and the edge of the conveyor chain. The scissors jack and the support plate 1 thereon are pushed into the specified target position inside the conveyor chain foundation pit through the rocker 9. The rocker 9 is rotated to make the lead screw 8 rotate, so that the scissors jack acts, and the support plate 1 at the top of the scissors jack rises. The conveyor chain pressing the idler is lifted by the support plate 1. The support plate 1 can increase the contact area with the conveyor chain, creating space for the replacement of the idler. Then, the hook 91 is disengaged from the hanging ring 81, and the hook 91 is used to hook out the idler to be replaced. In this embodiment, the length of the telescopic rod 92 can be adjusted according to the idler position, and then the length of the rocker 9 can be adjusted, so as to push the scissors jack and the support plate 1 thereon to different depths to lift the conveyor chain at different positions for replacing the idler, improving the universality of the tool.

[0029] The telescopic rod 92 includes a first telescopic section 921 and a second telescopic section 923. One end of the first telescopic section 921 is connected to the hook 91, and one end of the second telescopic section 923 is connected to the handle 93. The end of the first telescopic section 921 away from the hook 91 is slidably connected to the end of the second telescopic section 923 away from the handle 93. At least two first connection holes are provided at the end of the first telescopic section 921 away from the hook 91, and at least two second connection holes are provided at the end of the second telescopic section 923 away from the handle 93. The first connection holes and the second connection holes are connected by fasteners. During implementation, the first connection holes at different positions are connected to the second connection holes at different positions by fasteners, and the length of the telescopic rod 92 can be adjusted to adapt to the replacement of idlers at different positions.

[0030] Such as Figure 1As shown in the figure, the scissor jack includes a base 2, a top seat 7, a first lower arm 3, a second lower arm 4, a first upper arm 5 and a second upper arm 6. One end of the first lower arm 3 and one end of the second lower arm 4 are respectively hinged to the base 2. The other end of the first lower arm 3 is hinged to one end of the first upper arm 5 through a first hinge. The other end of the second lower arm 4 is hinged to one end of the second upper arm 6 through a second hinge. The other ends of the first upper arm 5 and the second upper arm 6 are respectively hinged to the top seat 7. The first hinge and the second hinge are respectively connected to both ends of the lead screw 8 so that when the lead screw 8 rotates, the first hinge and the second hinge move in directions away from or close to each other. During implementation, after the scissor jack is pushed into the designated target position of the conveying chain foundation pit through the rocker 9, the handle 93 is rotated. The lead screw 8 is rotated through the telescopic rod 92, the hook 91 and the hanging ring 81, so that the first hinge and the second hinge approach each other along the lead screw 8, that is, the tops of the first lower arm 3 and the second lower arm 4 approach each other. Since one end of the first lower arm 3 and one end of the second lower arm 4 are respectively hinged to the base 2, during the process of the first hinge and the second hinge approaching each other, the tops of the first lower arm 3 and the second lower arm 4 move upward simultaneously. Similarly, since one end of the first upper arm 5 far from the first hinge and one end of the second upper arm 6 far from the second hinge are respectively hinged to the top seat 7, during the process of the first hinge and the second hinge approaching each other, the top seat 7 moves upward simultaneously, driving the pallet 1 to rise and lift the conveying chain pressing the idler roller, creating space for replacing the idler roller.

[0031] Both ends of the lead screw 8 are respectively provided with a first screw rod and a second screw rod with opposite spiral directions. The first hinge is slidably connected to the first screw rod, and the second hinge is slidably connected to the second screw rod. During implementation, due to the opposite spiral directions of the first screw rod and the second screw rod, when the lead screw 8 rotates, the first hinge connected to the first screw rod and the second hinge connected to the second screw rod will move in directions away from or close to each other, realizing the rise or fall of the scissor jack and the pallet 1 thereon.

[0032] The pallet 1 is made of stainless steel. During implementation, since the vehicle coming out of the rain line directly enters the PDI conveying line, the water carried by the vehicle body drops to the surface of the conveying chain and penetrates into the foundation pit below through the conveying chain, causing high humidity in the foundation pit. Setting the pallet 1 as a stainless steel structure can prevent the pallet 1 from rusting.

[0033] The pallet 1 is a structure with a cavity. The weight of the pallet 1 can be reduced by setting the cavity.

[0034] The pallet 1 is fixedly welded to the scissor jack to ensure that the middle part of the pallet 1 corresponds to the middle part of the scissor jack, so as to realize the balanced lifting of the conveying chain at the designated target position and facilitate the replacement of the idler roller.

[0035] Embodiment 2

[0036] This embodiment is similar to the first embodiment, except that the telescopic rod 92 includes a first telescopic section 921, an intermediate telescopic section 922, and a second telescopic section 923. One end of the first telescopic section 921 is connected to the hook 91, and one end of the second telescopic section 923 is connected to the handle 93. The end of the first telescopic section 921 away from the hook 91 is slidably connected to the end of the intermediate telescopic section 922 close to the hook 91, and the end of the second telescopic section 923 away from the handle 93 is slidably connected to the end of the intermediate telescopic section 922 close to the handle 93. At least two first connection holes are provided at the end of the first telescopic section 921 away from the hook 91, and at least two second connection holes are provided at the end of the second telescopic section 923 away from the handle 93. Third connection holes are respectively provided at both ends of the intermediate telescopic section 922. The first connection holes and the second connection holes are respectively connected to the third connection holes at both ends of the intermediate telescopic section 922 through fasteners. During implementation, the first connection holes at different positions are connected to the third connection holes at the end of the second telescopic section 923 close to the hook 91 through fasteners, and / or the second connection holes at different positions are connected to the third connection holes at the end of the second telescopic section 923 close to the handle 93 through fasteners, so as to adjust the length of the telescopic rod 92 to adapt to the replacement of idlers at different positions; wherein, the setting of the intermediate telescopic section 922 can further increase the adjustment range of the length of the telescopic rod 92 and further improve the universality of the auxiliary tool for replacing the conveyor chain idler.

[0037] Embodiment III

[0038] This embodiment is similar to the second embodiment, except that, as Figure 3 shown, the telescopic rod 92 includes a first telescopic section 921, an intermediate telescopic section 922, and a second telescopic section 923. The intermediate telescopic section 922 is sleeved on the outer periphery of the first telescopic section 921, and the second telescopic section 923 is sleeved on the outer periphery of the intermediate telescopic section 922. One end of the first telescopic section 921 is connected to the hook 91, and one end of the second telescopic section 923 is connected to the handle 93. The end of the intermediate telescopic section 922 close to the hook 91 and the end of the first telescopic section 921 away from the hook 91, and the end of the intermediate telescopic section 922 close to the handle 93 and the end of the second telescopic section 923 away from the handle 93 are respectively connected through a snap structure 924. During implementation, the first telescopic section 921 and the second telescopic section 923 can respectively slide along the intermediate telescopic section 922 to adjust the length of the telescopic rod 92. When the telescopic rod 92 needs to be shortened, the first telescopic section 921, the intermediate telescopic section 922, and the second telescopic section 923 are sleeved from the inside out in sequence; when the telescopic rod 92 needs to be lengthened, the first telescopic section 921 is pulled out from the intermediate telescopic section 922, the intermediate telescopic section 922 is pulled out from the second telescopic section 923, and the pulled-out lengths of the first telescopic section 921 and the intermediate telescopic section 922 are respectively fixed through the two snap structures 924 to prevent the rocker 9 from contracting during the process of pushing the scissor jack into the specified target position inside the conveyor chain foundation pit.

[0039] Specifically, the buckle structure 924 includes a spring, a ball, and a through hole. One end of the spring is connected to the inner wall of the first telescopic section 921 or the inner wall of the middle telescopic section 922, the other end of the spring is connected to the ball, the through hole is provided in the middle telescopic section 922 or the second telescopic section 923, and the ball can be snap-connected to the through hole. During implementation, when the first telescopic section 921 is pulled out from the middle telescopic section 922, and when the middle telescopic section 922 is pulled out from the second telescopic section 923, the spring is compressed. When pulled out until the ball is aligned with the through hole, the ball pops out under the elastic force of the spring and is snap-connected to the through hole.

[0040] A clamping platform is respectively provided at one end of the first telescopic section 921 away from the hook 91 and at one end of the middle telescopic section 922 close to the handle 93. A boss is respectively provided on the inner wall of one end of the middle telescopic section 922 close to the hook 91 and at one end of the second telescopic section 923 away from the handle 93. The clamping platform located on the first telescopic section 921 is clamped with the boss located on the middle telescopic section 922, and the clamping platform located on the middle telescopic section 922 is clamped with the boss located on the second telescopic section 923; the distance between the spring and the ball on the first telescopic section 921 and the hook 91 is less than the distance between the clamping platform on the first telescopic section 921 and the hook 91, the distance between the spring and the ball on the middle telescopic section 922 and the hook 91 is less than the distance between the clamping platform on the middle telescopic section 922 and the hook 91, the distance between the through hole on the middle telescopic section 922 and the hook 91 is less than the distance between the boss on the middle telescopic section 922 and the hook 91, and the distance between the through hole on the second telescopic section 923 and the handle 93 is greater than the distance between the boss on the second telescopic section 923 and the handle 93. When the first telescopic section 921 and the middle telescopic section 922 are pulled out in place, the clamping platform is clamped with the boss to prevent continuous pulling out and separation and disassembly of the first telescopic section 921, the middle telescopic section 922, and the second telescopic section 923.

[0041] In the specific content of the above specific implementation manner, each technical feature can be combined arbitrarily without contradiction. For the sake of concise description, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features does not exist in contradiction, it should be considered as the scope recorded in this specification.

[0042] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or variations can be made on the basis of the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An auxiliary tool for replacing a conveyor chain idler, comprising a scissor jack, a support plate (1) and a rocker (9). The support plate (1) is located at the top of the scissor jack. The scissor jack is provided with a lead screw (8) for adjusting the lifting of the scissor jack. One end of the lead screw (8) is provided with a hanging ring (81), and one end of the rocker (9) is provided with a hook (91) hooked to the hanging ring (81); characterized in that, The rocker (9) further includes a telescopic rod (92) and a handle (93). One end of the telescopic rod (92) is connected to the hook (91), and the other end of the telescopic rod (92) is connected to the handle (93). The telescopic rod (92) is telescopic to adjust the distance between the hook (91) and the handle (93).

2. The conveying chain idler replacement auxiliary tool according to claim 1, characterized in that The telescopic rod (92) includes a first telescopic section (921) and a second telescopic section (923). One end of the first telescopic section (921) is connected to the hook (91), and one end of the second telescopic section (923) is connected to the handle (93). The end of the first telescopic section (921) away from the hook (91) is slidably connected to the end of the second telescopic section (923) away from the handle (93). At least two first connection holes are provided at the end of the first telescopic section (921) away from the hook (91), and at least two second connection holes are provided at the end of the second telescopic section (923) away from the handle (93). The first connection holes and the second connection holes are connected by fasteners.

3. The auxiliary tool for replacing the conveyor chain idler according to claim 1, characterized in that, The telescopic rod (92) includes a first telescopic section (921), an intermediate telescopic section (922), and a second telescopic section (923). One end of the first telescopic section (921) is connected to the hook (91), and one end of the second telescopic section (923) is connected to the handle (93). The end of the first telescopic section (921) away from the hook (91) is slidably connected to the end of the intermediate telescopic section (922) close to the hook (91), and the end of the second telescopic section (923) away from the handle (93) is slidably connected to the end of the intermediate telescopic section (922) close to the handle (93). At least two first connection holes are provided at the end of the first telescopic section (921) away from the hook (91), and at least two second connection holes are provided at the end of the second telescopic section (923) away from the handle (93). Third connection holes are respectively provided at both ends of the intermediate telescopic section (922), and the first connection holes and the second connection holes are respectively connected to the third connection holes at both ends of the intermediate telescopic section (922) by fasteners.

4. The conveying chain idler replacement auxiliary tool according to claim 1, characterized in that, The telescopic rod (92) includes a first telescopic section (921), an intermediate telescopic section (922), and a second telescopic section (923). The intermediate telescopic section (922) is sleeved on the outer periphery of the first telescopic section (921), and the second telescopic section (923) is sleeved on the outer periphery of the intermediate telescopic section (922). One end of the first telescopic section (921) is connected to the hook (91), and one end of the second telescopic section (923) is connected to the handle (93). The end of the intermediate telescopic section (922) close to the hook (91) and the end of the first telescopic section (921) away from the hook (91), and the end of the intermediate telescopic section (922) close to the handle (93) and the end of the second telescopic section (923) away from the handle (93) are respectively connected by a snap structure (924).

5. The conveying chain idler replacement auxiliary tool according to claim 4, characterized in that, The snap structure (924) includes a spring, a ball, and a through hole. One end of the spring is connected to the inner wall of the first telescopic section (921) or the inner wall of the middle telescopic section (922), and the other end of the spring is connected to the ball. The through hole is provided in the middle telescopic section (922) or the second telescopic section (923), and the ball can be snap-connected to the through hole.

6. The conveying chain idler replacement auxiliary tool according to claim 1, wherein The scissors jack includes a base (2), a top seat (7), a first lower arm (3), a second lower arm (4), a first upper arm (5), and a second upper arm (6). One end of the first lower arm (3) and one end of the second lower arm (4) are respectively hinged to the base (2). The other end of the first lower arm (3) is hinged to one end of the first upper arm (5) through a first hinge member. The other end of the second lower arm (4) is hinged to one end of the second upper arm (6) through a second hinge member. The other ends of the first upper arm (5) and the second upper arm (6) are respectively hinged to the top seat (7). The first hinge member and the second hinge member are respectively connected to both ends of the lead screw (8) so that when the lead screw (8) rotates, the first hinge member and the second hinge member move in directions away from or towards each other.

7. The auxiliary tool for replacing the conveyor chain idler according to claim 6, characterized in that, Both ends of the lead screw (8) are respectively provided with a first screw rod and a second screw rod with opposite spiral directions. The first hinge member is slidably connected to the first screw rod, and the second hinge member is slidably connected to the second screw rod.

8. The auxiliary tool for replacing the conveyor chain idler according to claim 1, wherein, The support plate (1) is made of stainless steel.

9. The conveying chain idler replacement auxiliary tool according to claim 1, characterized in that, The support plate (1) has a structure with a cavity.

10. The conveying chain idler replacement auxiliary tool according to any one of claims 1 to 9, characterized in that, The support plate (1) is fixedly welded to the scissors jack.

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