A drive chain auxiliary repair tool and a drive chain repair method

Abstract

The application discloses a transmission chain auxiliary repair tool and a transmission chain repair method. Two parallel limiting lead screws are respectively inserted into holes in the transmission chain on both sides of the fracture. The two ends of the limiting lead screws are respectively a ring end and a nut end. The ring end of one limiting lead screw is opposite to the nut end of the other limiting lead screw. At least two tightening lead screws are connected to the two limiting lead screws, so that the two limiting lead screws abut against the transmission chain and clamp and position the transmission chain near the fracture. Each limiting lead screw corresponds to the opposite ring end and nut end, and one end of the tightening lead screw is threadedly connected to the nut end. The other end of the tightening lead screw protrudes from and is wider than the ring end of the limiting lead screw. The whole can be in a frame shape to frame the fracture of the transmission chain. Rotating the tightening lead screw can adjust the length of the fracture. The structure is simple and not easy to fall and hurt the workers. The safety is high, the positioning and repair are fast, and the technical problems of the safety and the repair efficiency not being ideal in the transmission chain repair process are solved to a certain extent.

Description

Technical Field

[0001] This application belongs to the field of transmission chain technology, and in particular relates to an auxiliary repair tool and a repair method for transmission chains. Background Technology

[0002] The transmission chain is used in the transmission of the vertical gate valve of the hot blast stove. Because the hot blast stove is in continuous production operation, the transmission chain is under load for a long time, which may lead to the breakage of the transmission chain. If the broken chain cannot be restored in time, it will affect the normal operation of the production line. Therefore, it is necessary to repair the broken transmission chain.

[0003] Currently, after a drive chain breaks, maintenance personnel need to use tools such as chain hoists or chucks to pull and straighten both sides of the broken section. After straightening, new links are used to reconnect the broken parts of the drive chain for reuse. However, if the break is at a high point, it is difficult for maintenance personnel to move heavy tools to that location, and the movement and use of these tools pose certain risks. Furthermore, the operation of tools such as chain hoists and chucks is quite difficult, which also affects the efficiency of drive chain repair. Therefore, the safety and efficiency of drive chain repair are not ideal. Summary of the Invention

[0004] This application aims to address, at least to some extent, the technical problems of insufficient safety and repair efficiency in the transmission chain repair process. To this end, this application provides an auxiliary repair tool and a transmission chain repair method.

[0005] This application provides a transmission chain auxiliary repair tool, applied to assist in the repair of transmission chains, including: At least two limit screws are arranged side by side, with a ring end and a nut end at each end. In two adjacent limit screws, the ring end of one limit screw is opposite to the nut end of the other limit screw. At least two tightening screws are arranged side by side, each of the limiting screws passing through the opposite ring end and the nut end, and one end of the tightening screw is threaded into the nut end, while the other end protrudes out and is wider than the ring end.

[0006] In some or more embodiments, the tightening screw includes: The lever body has an external thread at one end that engages with the threaded end of the nut, and a smooth circumferential wall at the other end. The conical section is coaxially connected to the other end of the bar body section and protrudes beyond and is wider than the ring end.

[0007] In some or more embodiments, the smaller diameter end of the cone portion is fixedly connected to the bar body portion, and the outer peripheral wall of the cone portion has anti-slip texture.

[0008] In some or more embodiments, the limiting screw includes a first section and a second section connected by threads. One end of the first segment is an internal thread end, and the other end is configured as the nut end; One end of the second segment is an external thread end that mates with the internal thread end, and the other end is configured as the annular end.

[0009] In some or more embodiments, the drivetrain auxiliary repair tool further includes: At least two parallel guide rods can slide through two adjacent limiting screws and extend in length along the length direction of the tightening screw.

[0010] In some or more embodiments, one end of the guide rod is provided with an anti-detachment plate.

[0011] This application also provides a method for repairing a drive chain, which is implemented using the drive chain auxiliary repair tool described above. The drive chain repair method includes: The two adjacent limiting screws are inserted into the holes corresponding to the rolling elements in the transmission chain at intervals, so that the break of the transmission chain is located between the two adjacent limiting screws. The two tightening screws are connected to the two limiting screws, and the limiting screws abut against the rolling element; Repair the broken section of the transmission chain.

[0012] In some or more embodiments, before inserting two adjacent limiting screws at intervals into the holes corresponding to the rolling elements in the transmission chain, the transmission chain repair method further includes: Based on the location of the fracture, determine the hole on the transmission chain into which the limiting screw can be inserted.

[0013] In some or more embodiments, the step of "determining the hole on the transmission chain for the insertion of the limiting screw based on the location of the fracture" includes: If the fracture point is located on the chain plate corresponding to the link of the transmission chain, the link where the fracture point is located is the damaged link, and the two limiting screws are respectively inserted into the holes corresponding to the rolling elements on both sides of the damaged link; If the fracture point is located at the pin corresponding to the link of the transmission chain, the damaged area is the link where the pin is located, the rolling element that the pin engages with, and the entire link on the other side of the rolling element. The two limiting screws are respectively inserted into the holes corresponding to the rolling elements on both sides of the damaged area.

[0014] In some or more embodiments, before repairing the broken portion of the transmission chain after the limiting screw abuts against the rolling element, the transmission chain repair method further includes: Rotate the tightening screw so that the distance between the two limiting screws is a multiple of the transmission chain pitch.

[0015] The beneficial effects provided by one or more embodiments of this application are as follows: If a drive chain breaks, two parallel limiting screws from the drive chain auxiliary repair tool are inserted into holes on either side of the break in the drive chain. The two ends of each limiting screw are a ring end and a nut end, with the ring end of one limiting screw opposite the nut end of the other. At least two parallel tightening screws connect the two limiting screws, clamping and positioning them near the break in the drive chain. This design is simple, lightweight, and easy to handle. It offers high flexibility in repairing broken drive chains at heights and reduces the risk of falling debris injuring maintenance personnel, thus improving safety during repairs. Each limiting screw passes through the corresponding ring end and nut end, with one end of the tightening screw threaded into the nut end, and the other end protruding and wider than the ring end of the mating limiting screw. Each limit screw's ring end and nut end can pass through a tightening screw, and these two tightening screws and two limit screws can form a frame structure, which frames the broken part within the frame hole, achieving rapid and stable positioning of the transmission chain. It also allows for repair of the broken part of the transmission chain after positioning, avoiding the situation where the transmission chain detaches during repair or replacement and needs to be reinstalled and positioned, thus improving the repair efficiency of the transmission chain. Furthermore, in this frame structure, the two ends of the two parallel tightening screws are in opposite positions. When one tightening screw is rotated, the other end protrudes from and is wider than the ring end of the limiting screw. The ring end of this limiting screw and the tightening screw only rotate relative to each other, without relative axial movement. When the same tightening screw is engaged with the nut end of the other limiting screw, the nut end of the other limiting screw will have a tendency to rotate. However, since the ring end of the other limiting screw is fitted on the other tightening screw, it is limited by rotation. The rotation will be converted into the axial movement of the other limiting screw along the nut end. By adjusting the distance between the two limiting screws, the repaired transmission chain can be put into use immediately after the limiting screw and other structures are disassembled. This is beneficial for the repair of the transmission chain and the rapid restoration of the production line to normal, and to a certain extent solves the technical problems of unsatisfactory safety and repair efficiency in the transmission chain repair process. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 The diagram illustrates the application of a transmission chain according to some or some embodiments of this application.

[0018] Figure 2 A schematic diagram of the structure of a transmission chain according to some or some embodiments of this application is shown.

[0019] Figure 3 A top view of a transmission chain according to some or some embodiments of this application is shown.

[0020] Figure 4 The diagram illustrates the usage status of a transmission chain auxiliary repair tool according to some or some embodiments of this application.

[0021] Figure 5 A schematic diagram of a tightening screw is shown for some or some embodiments of this application.

[0022] Figure 6 A schematic diagram of the structure of a guide rod according to some or some embodiments of this application is shown.

[0023] Figure 7 A flowchart of a transmission chain repair method according to some or some embodiments of this application is shown.

[0024] Figure 8 A schematic diagram of a transmission chain breakage state is shown in some or some embodiments of this application.

[0025] Figure 9 This illustration shows another transmission chain breakage state in some or certain embodiments of this application.

[0026] Figure 10 This illustration shows a schematic diagram of the usage status of another transmission chain auxiliary repair tool according to some or some embodiments of this application.

[0027] Explanation of reference numerals in the attached drawings: 1. Limiting screw; 11. Ring end; 12. Nut end; 13. First section; 14. Second section; 15. Guide hole; 2. Tightening screw; 21. Screw body; 22. Conical cylinder; 3. Guide rod; 31. Anti-detachment plate; 10. Vertical gate valve; 101. Body; 102. Bracket; 20. Drive chain; 201. Chain link; 2011. Pin; 2012. Chain plate; 202. Rolling element; 2021. Sleeve; 2022. Connecting plate; 2023. Hole between the two sleeves 2022 of the rolling element 202. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] It should be noted that all directional indications in the embodiments of this invention are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly. In this invention, unless otherwise explicitly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, "fixed" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction relationship between two components, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances. In addition, the descriptions involving "first," "second," etc., in this invention are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0030] The present application will now be described in conjunction with the accompanying drawings: For ease of understanding, here is a brief introduction. Figure 1 , Figure 1 This application shows a schematic diagram illustrating the application of a transmission chain according to some or more embodiments of this application. (Refer to...) Figure 1 It is understood that the transmission chain 20 can be used in the vertical gate valve 10 of the hot blast stove. A bracket 102 is provided above the body 101 of the vertical gate valve 10, and the transmission chain 20 is rotatably mounted on the bracket 102. For vertical gate valves 10 with a large height, if the transmission chain 20 on the bracket 102 breaks, the transmission chain auxiliary repair tool in this application can be used for repair.

[0031] Figure 2 This application shows a schematic diagram of the structure of a transmission chain according to some or some embodiments. Figure 3A top view of a transmission chain according to some or some embodiments of this application is shown, in conjunction with... Figure 2 and Figure 3 The transmission chain 20 may include multiple chain links 201 and rolling elements 202.

[0032] Chain link 201 includes two opposing chain plates 2012 and pins 2011 between the two chain plates 2012. The two ends of the pins 2011 are fixedly connected to the surfaces of the two chain plates 2012, respectively. Rolling element 202 includes sleeves 2021 that are respectively rolled around the pins 2011 of the two chain links 201, and connecting plates 2022 respectively connected to the two ends of the sleeves 2021. Multiple chain links 201 and rolling elements 202 are alternately rotatably connected to form a transmission chain 20. A hole 2023 formed between the two sleeves 2021 of the rolling element 202 can be used to insert a limiting screw 1.

[0033] It should be noted that, to ensure strength, the rolling element 202 and the chain link 201 in the aforementioned transmission chain 20 are usually an integral structure and difficult to separate. Therefore, in the event of breakage, it is usually necessary to replace the entire chain link 201 or the rolling element 202. The transmission chain auxiliary repair tool in this application is not limited to the transmission chain 20 with the above-described structure; it can also be used for auxiliary repair of transmission chains 20 with insertable holes or gaps.

[0034] Figure 4 This application shows a schematic diagram illustrating the usage state of a transmission chain auxiliary repair tool according to some or more embodiments. (Refer to...) Figure 4 This application provides a transmission chain auxiliary repair tool for repairing an auxiliary transmission chain 20, comprising: At least two limit screws 1 are arranged side by side, with a ring end 11 and a nut end 12 at their two ends, respectively. In two adjacent limit screws, the ring end 11 of one limit screw 1 is opposite to the nut end 12 of the other limit screw 1.

[0035] At least two tightening screws 2 are arranged side by side. Each limiting screw 1 passes through the corresponding ring end 11 and nut end 12. One end of the tightening screw 2 is threaded with the nut end 12, and the other end protrudes out and is wider than the ring end 11.

[0036] If the transmission chain 20 breaks, two parallel limiting screws 1 from the transmission chain auxiliary repair tool are inserted into the holes on both sides of the broken section of the transmission chain 20. The two ends of each limiting screw 1 are a ring end 11 and a nut end 12, respectively, with the ring end 11 of one limiting screw 1 facing the nut end 12 of the other. At least two parallel tightening screws 2 connect the two limiting screws 1, causing them to clamp and position the transmission chain 20 near the broken section. This design is simple, lightweight, and easy to handle, offering high flexibility in repairing broken sections of the transmission chain 20 at heights and reducing the risk of injury to maintenance personnel from falling debris. It also improves the safety of repairing broken sections. Each limiting screw 1 passes through the corresponding ring end 11 and nut end 12, with one end of the tightening screw 2 threaded into the nut end 12, and the other end of the tightening screw 2 protruding beyond and wider than the ring end 11 of the mating limiting screw 1. The annular end 11 and nut end 12 of each limiting screw 1 can pass through a tightening screw 2, and the two tightening screws 2 and the two limiting screws 1 can form a frame structure to frame the broken part in the frame hole, so as to achieve rapid and stable positioning of the transmission chain 20, and to repair the broken part of the transmission chain 20 after positioning, avoiding the situation that the transmission chain 20 will be dislodged during the repair and replacement process and need to be reinstalled and positioned, which is conducive to improving the repair efficiency of the transmission chain 20. Furthermore, in this frame structure, the two ends of the two parallel tightening screws 2 are in opposite positions. When one tightening screw 2 is rotated, it protrudes beyond and is wider than the other end of the ring end 11 of the limiting screw 1. The ring end 11 of the limiting screw 1 and the tightening screw 2 only rotate relative to each other, without relative axial movement. When the same tightening screw 2 is engaged with the nut end 12 of the other limiting screw 1, the nut end 12 of the other limiting screw 1 will have a tendency to rotate. However, since the ring end 11 of the other limiting screw 1 is sleeved on the other tightening screw 2, it is subject to rotational limitation. The rotation will be converted into the axial movement of the other limiting screw 1 along the nut end 12. By adjusting the distance between the two limiting screws 1, the transmission chain 20 can be put into use immediately after the structure such as the limiting screw 1 is disassembled and repaired. This is beneficial for the repair of the transmission chain 20 and the rapid restoration of the production line to normal, and to a certain extent solves the technical problems of unsatisfactory safety and repair efficiency in the repair process of the transmission chain 20.

[0037] Furthermore, this auxiliary repair tool for transmission chains is relatively flexible in its assembly and disassembly. While enabling quick and effective positioning of the transmission chain 20, it also has good versatility, applicable to transmission chains 20 with different pitches and types. The tightening screw 2 and the limiting screw 1 are configured with at least two components, facilitating installation and replacement.

[0038] Figure 5 This application shows a schematic diagram of the structure of a tightening screw according to some or some embodiments. (Refer to...) Figure 5In some or more embodiments, tightening the lead screw 2 includes: The lever body 21 has an external thread at one end that engages with the nut end 12, and the other end has a smooth circumferential wall.

[0039] The conical section 22 is coaxially connected to the other end of the bar body section 21, and protrudes beyond and is wider than the ring end 11.

[0040] One end of the lever body 21 of the tightening screw 2 can be engaged with the nut end 12 through the external thread, and the smooth peripheral wall of the other end facilitates the rotation of the tightening screw 2 relative to the ring end 11. The tapered cylinder 22, which is coaxially connected to the smooth end of the lever body 21, facilitates the rotation of the tightening screw 2. It is also easy to process, has a small weight, and is also beneficial for maintenance personnel to operate and assemble.

[0041] In some embodiments, the smaller diameter end of the tapered cylinder 22 is fixedly connected to the lever body 21, and the outer peripheral wall of the tapered cylinder 22 has anti-slip texture. With the mass of the tapered cylinder 22 remaining almost constant, it is easy to rotate the tapered cylinder 22 to adjust the distance between the two limit screws 1, which helps improve the repair efficiency of the transmission chain 20.

[0042] In some or more embodiments, the protrusion of the lever body 21, which is wider than the other end of the annular end 11, can also be configured as a flange, annular protrusion, irregular protrusion, etc. This can also serve to limit movement and facilitate the rotation of the screw 2.

[0043] In some or more embodiments, the limiting screw 1 includes a first section 13 and a second section 14 that are threaded together.

[0044] One end of the first segment 13 is an internal thread end, and the other end is configured as a nut end 12.

[0045] One end of the second segment 14 is an external thread end that mates with the internal thread end, and the other end is configured as a ring end 11.

[0046] The limiting screw 1 includes a threaded first section 13 and a second section 14, with the annular end 11 and the nut end 12 respectively located on the first section 13 and the second section 14. Rotating the first section 13 relative to the second section 14 changes the overall length of the limiting screw 1 and alters the axial angle between the nut end 12 and the annular end 11. This structure significantly improves the flexibility of installation and engagement between the first section 13 and the second section 14 of the limiting screw 1 and the tightening screw 2 during the overall installation to the transmission chain 20, facilitating operation and improving the repair efficiency of the transmission chain 20. The axis of the annular end 11 and the axis of the nut end 12 can also be adjusted to near coincidence. Furthermore, as described above, the widths of the two ends of the first section 13 and the second section 14 typically differ, allowing the ends of the first section 13 and the second section 14 to provide a certain limiting function during use. The narrower, threaded end can also be used with smaller-sized rolling elements 202.

[0047] In some or more embodiments, the limiting screw 1 may also be an integral structure. It should be noted that the annular end 11 and the nut end 12 are respectively the annular end and the nut-shaped end.

[0048] Figure 6 This application shows a schematic diagram of the structure of a guide rod according to some or more embodiments. (Refer to...) Figure 6 It is understood that, in some or more embodiments, the transmission chain auxiliary repair tool further includes: At least two parallel guide rods 3 can slide through two adjacent limiting screws 1, and their length extends along the length direction of the tightening screw 2.

[0049] The guide rod 3 can guide the two limit screws 1, thereby improving the stability of the structure composed of the limit screw 1 and the tightening screw 2.

[0050] In some embodiments, taking the vertical working surface of the transmission chain 20 as an example, two limiting screws 1 can be horizontally inserted into the holes 2023 of the rolling elements 202 in the transmission chain 20. Tightening screws 2 can be vertically positioned and nearly parallel to the working surface. Two guide rods 3 can also be vertically positioned and located on opposite sides of the normal direction of the working surface. The limiting screws 1 limit the transmission direction of the transmission chain 20, and the two guide rods 3 clamp the normal sides of the working surface of the transmission chain 20. This improves the stability of the transmission chain 20 and enhances the repair effect at fracture points.

[0051] In some embodiments, one end of the guide rod 3 is provided with an anti-detachment plate 31. This prevents the guide rod 3 from falling off and also facilitates the assembly of the guide rod 3. The diameter of the anti-detachment plate 31 is larger than that of the guide rod 3, thus serving to prevent detachment.

[0052] In some or more embodiments, when the limiting screw 1 includes a first section 13 and a second section 14, the length of the first section 13 may be greater than the length of the second section 14, and the first section 13 is provided with a guide hole 15 that is clearance-fitted with the guide rod 3. This ensures strength and facilitates operation.

[0053] In some or more embodiments, the diameter of the guide hole 15 on the limiting screw 1 can be 1 / 3 to 1 / 2 of the diameter of the limiting screw 1. This provides higher strength and easier operation.

[0054] Based on the same inventive concept, this application also provides a method for repairing a transmission chain. Figure 7 This application illustrates a flowchart of a transmission chain repair method according to some or more embodiments, in conjunction with... Figure 7 This can be achieved using the aforementioned auxiliary repair tools for the drive chain. Drive chain repair methods include: S101: Insert two adjacent limit screws into the holes corresponding to the rolling elements in the transmission chain at intervals, so that the break of the transmission chain is located between the two adjacent limit screws.

[0055] S102: Connect the two tightening screws to the two limiting screws, and make the limiting screws abut against the rolling elements.

[0056] S103: Repair the broken part of the transmission chain.

[0057] The structure and corresponding technical effects of the auxiliary repair tool for the transmission chain can be referred to above, and will not be repeated here. The limit screw abuts against the rolling element, which can limit the transmission chain and facilitate subsequent repairs.

[0058] It should be noted that the transmission chain breakage involved in this application mainly refers to the partial breakage of the main load links. Usually, not all links of the transmission chain break. When the transmission chain is partially broken, there will be feedback indicators that require inspection and maintenance, so that maintenance personnel can know that the transmission chain needs to be maintained and repaired.

[0059] In step S103 of some embodiments, a slack link can be used instead of the link space left on the drive chain after removing the link. The structure of the slack link is similar to that of the link, but the link plate and the pin of the slack link can be separated, and a detachable connection can be achieved by fasteners such as pins (not shown in the figure). This can improve repair efficiency.

[0060] In some or more embodiments, before inserting two adjacent limiting screws at intervals into the holes corresponding to the rolling elements in the transmission chain, the transmission chain repair method may further include: Determine the hole on the transmission chain for the insertion of the limit screw based on the location of the fracture.

[0061] It is easy to operate and allows for maintenance and replacement of the relevant structures at the fracture site.

[0062] In some or more embodiments, "determining the hole on the transmission chain for the insertion of the limiting screw based on the location of the fracture" includes: If the break is located on the chain plate corresponding to the link of the transmission chain, the link where the break is located is considered the damaged link, and the two limit screws are inserted into the holes corresponding to the rolling elements on both sides of the damaged link.

[0063] If the break is located at the pin corresponding to the link of the transmission chain, the damaged area is the link where the pin is located, the rolling element that the pin engages with, and the entire link on the other side of the rolling element. Insert two limit screws into the holes corresponding to the rolling elements on both sides of the damaged area.

[0064] When a chain link's corresponding chain plate breaks, the chain link itself suffers the most severe breakage and deformation. Therefore, it's necessary to cut and remove the broken chain link, replacing it with a healthy, live chain link. In this case, a limit screw can be inserted into the holes of the rolling elements on both sides of the damaged chain link, providing good positioning and allowing for easy adjustment, thus improving repair efficiency. If the breakage is located at the chain link's pin, the chain link itself needs replacement, and the rolling elements mating with the pin will also experience significant deformation. Therefore, the damaged chain link and the rolling elements mating with the pin are considered the damaged area. Inserting a limit screw into the holes of the rolling elements on both sides of the damaged area facilitates repair, and the repaired drive chain's operating time and reliability are also improved.

[0065] For ease of understanding, the following is provided: Figures 8-10 , Figure 8 This diagram illustrates a transmission chain fracture state according to some or more embodiments of this application, with the fracture point of link 201 located at link plate 2012. The usage of the limiting screw 1 can be found in [reference needed]. Figure 4 . Figure 8 The transmission chain 20 in the process can be replaced by the live chain link in step S103 to replace the chain link that originally needed to be removed.

[0066] Figure 9 This invention illustrates another transmission chain breakage state according to some or more embodiments of the present application, with reference to... Figure 9 It can be seen that the pin 2011 of link 201 is broken. At this time, the engagement between the limit screw 1 and the transmission chain 20 can be referenced. Figure 10 , Figure 10 This illustration shows a schematic diagram of the usage status of another transmission chain auxiliary repair tool according to some or some embodiments of this application.

[0067] Figure 10The transmission chain shown requires the removal of one link 201, the rolling element 202 that is engaged with the pin 2011 of the link 201, and the link 201 that is engaged with the other side of the same rolling element 202. Then, two live links and one rolling element 202 are used to replace the removed rolling element 202 and the links 201 on both sides of the rolling element 202.

[0068] It should be noted that the above steps are mainly used to repair the breakage at the point where the chain link 201 and the rolling element are integrated. However, due to the requirements of its own complete loop manufacturing, the transmission chain 20 also uses a single number of movable links to connect the chain into a single loop transmission chain. If the breakage is located at the chain plate of all movable links of the transmission chain 20 itself, simply replace the corresponding movable link with a good one. The usage of the limit screw 1 is as follows... Figure 4 If the breakage occurs at the pin of any of the live links of the transmission chain 20, then a similar method can be used. Figure 10 Using a transmission chain auxiliary repair tool, remove one rolling element 202 and the chain links 201 on both sides. If the transmission chain 20 has broken multiple times and many live chain links have already replaced the original chain links 201 of the transmission chain 20, the chain link 201 at the breakage point or the live chain link can be flexibly replaced as needed. If the transmission chain 20 has exceeded the repair requirements due to excessive repairs, it can be considered to replace the transmission chain that is about to reach the end of its service life with a good transmission chain 20.

[0069] In some or more embodiments, before repairing the broken section of the transmission chain after the limiting screw abuts against the rolling element, the transmission chain repair method further includes: Tighten the lead screws by rotating them so that the distance between the two limit screws is a multiple of the transmission chain pitch. After replacing the chain link, the transmission chain can be directly put into use, resulting in high repair and production recovery efficiency.

[0070] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0071] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0072] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A transmission chain auxiliary repair tool, characterized in that, Repairs applied to auxiliary drive trains include: At least two limit screws are arranged side by side, with a ring end and a nut end at each end. In two adjacent limit screws, the ring end of one limit screw is opposite to the nut end of the other limit screw. At least two tightening screws are arranged side by side, each of the limiting screws passing through the opposite ring end and the nut end, and one end of the tightening screw is threaded into the nut end, while the other end protrudes out and is wider than the ring end; The limiting screw includes a first section and a second section connected by threads. One end of the first segment is an internal thread end, and the other end is configured as the nut end; One end of the second segment is an external thread end that mates with the internal thread end, and the other end is configured as the annular end; If the transmission chain breaks, the two parallel limiting screws in the transmission chain auxiliary repair tool are inserted into the holes on both sides of the broken part of the transmission chain.

2. The transmission chain auxiliary repair tool according to claim 1, characterized in that, The tightening screw includes: The lever body has an external thread at one end that engages with the threaded end of the nut, and a smooth circumferential wall at the other end. The conical section is coaxially connected to the other end of the bar body section and protrudes beyond and is wider than the ring end.

3. The transmission chain auxiliary repair tool according to claim 2, characterized in that, The smaller diameter end of the cone section is fixedly connected to the bar body section, and the outer peripheral wall of the cone section has anti-slip texture.

4. The transmission chain auxiliary repair tool according to any one of claims 1 to 3, characterized in that, The drivetrain auxiliary repair tool also includes: At least two parallel guide rods can slide through two adjacent limiting screws and extend in length along the length direction of the tightening screw.

5. The transmission chain auxiliary repair tool according to claim 4, characterized in that, One end of the guide rod is equipped with an anti-detachment plate.

6. A method for repairing a transmission chain, characterized in that, The transmission chain repair method is implemented using the auxiliary repair tool for the transmission chain as described in any one of claims 1 to 5, and the transmission chain repair method includes: The two adjacent limiting screws are inserted at intervals into the holes corresponding to the rolling elements in the transmission chain, so that the break of the transmission chain is located between the two adjacent limiting screws. The two tightening screws are connected to the two limiting screws, and the limiting screws abut against the rolling element; Repair the broken section of the transmission chain.

7. The transmission chain repair method according to claim 6, characterized in that, The transmission chain repair method further includes inserting two adjacent limiting screws at intervals into the holes corresponding to the rolling elements in the transmission chain. Based on the location of the fracture, determine the hole on the transmission chain into which the limiting screw can be inserted.

8. The transmission chain repair method according to claim 7, characterized in that, Determining the hole on the transmission chain for the insertion of the limiting screw based on the location of the fracture includes: If the fracture point is located on the chain plate corresponding to the link of the transmission chain, the link where the fracture point is located is the damaged link, and the two limiting screws are respectively inserted into the holes corresponding to the rolling elements on both sides of the damaged link; If the fracture point is located at the pin corresponding to the link of the transmission chain, the damaged area is the link where the pin is located, the rolling element that the pin engages with, and the entire link on the other side of the rolling element. The two limiting screws are respectively inserted into the holes corresponding to the rolling elements on both sides of the damaged area.

9. The method for repairing a transmission chain according to any one of claims 6 to 8, characterized in that, After the limiting screw abuts against the rolling element, before repairing the broken part of the transmission chain, the transmission chain repair method further includes: Rotate the tightening screw so that the distance between the two limiting screws is a multiple of the transmission chain pitch.

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