Quick-change tool

Abstract

The invention relates to the technical field of replacement of lower return rollers of single-machine cantilever belt conveyors, in particular to a quick replacement tool which comprises a lifting assembly used for bearing the lower return rollers. The supporting assembly is provided with an adjusting structure, the lifting assembly is arranged on the supporting assembly through the adjusting structure, and the adjusting structure is used for adjusting the position of the lifting assembly in the horizontal direction; wherein under the condition that the lower return roller to be replaced is detached, the lifting assembly is lifted to support the lower return roller to be replaced, and the adjusting structure is controlled to adjust the lifting assembly to horizontally move to a designated position; and under the condition that the to-be-mounted lower return roller is mounted, the adjusting structure is controlled to adjust the horizontal position of the to-be-mounted lower return roller borne by the lifting assembly, and the lifting assembly is lifted to the mounting position. The lower return roller can be quickly mounted and dismounted through the quick change tool, the change efficiency and precision are improved, collision and damage caused during change are avoided, the risk of injury to workers is reduced, and the reliability is improved.

Description

Technical Field

[0001] This disclosure relates to the technical field of replacing the bottom return idler of a single-unit cantilever belt conveyor, and more particularly to a quick-change tool. Background Technology

[0002] Belt conveyors, as key equipment for material handling, are widely used in mining, ports, chemical industries, and many other sectors. The lower return idler of a single-unit cantilever belt conveyor is a crucial component, and its normal operation directly affects the stability and efficiency of the entire conveying system. With increasing usage time, the lower return idler may lose its normal function due to wear, corrosion, bearing damage, and other reasons, requiring timely replacement to avoid impacting production.

[0003] Currently, the replacement of the bottom return idlers of single-unit cantilever belt conveyors is usually done manually. Operators need to use a lifting platform and simple tools such as pry bars and wrenches to manually remove and carry the old idlers, and then move the new idlers to the installation position and fix them. This method requires a crane to provide a transportation platform, is extremely labor-intensive, has low replacement efficiency, and poses safety hazards.

[0004] Therefore, it is necessary to propose a quick-change tool to at least partially solve the problems existing in the prior art. Summary of the Invention

[0005] This disclosure aims to address at least one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, this disclosure proposes a quick-swap tool.

[0007] In view of this, a quick-change tool is proposed according to an embodiment of the present disclosure for replacing the lower return idler roller of a single-unit cantilever belt conveyor, comprising: The lifting assembly is used to support the aforementioned lower return idler roller; A support component is provided with an adjustment structure, and the lifting component is disposed on the support component through the adjustment structure. The adjustment structure is used to adjust the position of the lifting component in the horizontal direction. In the case of disassembling the lower return idler to be replaced, the lifting assembly is raised to support the lower return idler to be replaced, and the adjustment structure is operated to adjust the horizontal movement of the lifting assembly to a designated position; in the case of installing the lower return idler to be installed, the adjustment structure is operated to adjust the horizontal position of the lower return idler to be installed carried by the lifting assembly, and the lifting assembly is raised to the installation position.

[0008] In one feasible implementation, the lifting component includes: The groove is used to engage the aforementioned return idler roller; The lifting beam has the aforementioned groove connected to its middle section. The lifting beam is connected to the aforementioned support assembly via the aforementioned adjustment structure. Handles are provided at both ends of the lifting beam for connecting lifting equipment.

[0009] In one feasible implementation, the above-mentioned quick-change tool further includes: A baffle is provided on the side of the aforementioned trough away from the aforementioned lifting beam.

[0010] In one feasible implementation, the above-mentioned quick-change tool further includes: Rope loops are provided at both ends of the lifting beam. When the lower return idler is placed in the trough, the lower return idler is fixed by the rope loops.

[0011] In one feasible implementation, the aforementioned fast-motion device further includes: A limiting plate is disposed on the first plate and located between the elastic member and the first plate, for limiting the compression length of the elastic member.

[0012] In one feasible implementation, the above-mentioned quick-change tool further includes: The stop block is provided at both ends of the lifting beam and slide rails. The stop block is slidably disposed on the slide rails and is used to press against the end of the lower return idler roller. A positioning block is provided on the slide rail to fix the stop block.

[0013] In one feasible implementation, the above-mentioned support component includes: First beam body; The second beam is connected to the first beam and is perpendicular to the first beam. The first beam and the second beam are located in the same horizontal plane. The adjustment structure is provided on the first beam and the second beam so that the lifting beam can move along the first beam or the second beam.

[0014] In one feasible implementation, the above-mentioned adjustment structure includes: The first guide rail is provided on the first beam along the extension direction of the first beam. The second guide rail is provided on the second beam along the extension direction of the second beam, and the first guide rail is connected to the second guide rail; The sliding member is slidably connected to the first guide rail or the second guide rail, and the lifting beam is connected to the sliding member.

[0015] In one feasible implementation, the above-mentioned quick-change tool further includes: The locating pin is provided in the lifting beam which has a through hole, and is inserted through the through hole and connected to the sliding member.

[0016] In one feasible implementation, the above-mentioned quick-change tool further includes: The third beam is connected to the second beam via a connecting beam, and the third beam is parallel to the first beam. The third guide rail is provided on the third beam along the extension direction of the third beam. The support member is slidably connected to the third guide rail and is used to support the belt of the lower return idler.

[0017] In one feasible implementation, the above-mentioned quick-change tool further includes: The traveling wheels are located at the bottom of the second beam and / or the third beam mentioned above; Braking components are used to brake the aforementioned traveling wheels.

[0018] Compared to existing technologies, this disclosure offers at least the following advantages: The quick-change tool provided in this embodiment includes a lifting component and a support component. The lifting component can support the lower return idler, and its longitudinal position can be adjusted via a lifting device. The support component has an adjustment structure, and the lifting component can be mounted on the support component via the adjustment structure. The support component supports the lifting component, and the adjustment structure adjusts the horizontal position of the lifting component. With this configuration, when disassembling the lower return idler to be replaced, the lifting device can be manipulated to lift the lifting component longitudinally, causing it to contact the bottom of the lower return idler to be replaced. After the lower return idler to be replaced is fixed, the horizontal position of the lifting component is adjusted by the adjustment component to completely separate the lower return idler to be replaced from the mounting shaft. The adjustment component then continues to adjust the horizontal position of the lifting component, moving the lower return idler to be replaced to the cantilever corridor, thus completing the disassembly operation. When installing a lower return idler, the idler to be installed can be fixed to the lifting assembly. The horizontal position of the lifting assembly is adjusted to the mounting bearing using the adjusting assembly. The lower return idler to be installed is then lifted from the lifting assembly to above the mounting bearing using the lifting device. The horizontal position of the lifting assembly is then precisely adjusted again using the adjusting assembly to align the mounting shafts at both ends of the lower return idler with the mounting bearing, thus completing the installation. The quick-change tool enables rapid installation and removal of the lower return idler, improving replacement efficiency and accuracy, avoiding damage from impacts during replacement, reducing the risk of worker injury, and enhancing reliability. Attached Figure Description

[0019] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of exemplary embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this disclosure. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A schematic structural diagram of a quick-change tool according to an embodiment of this disclosure; Figure 2 A schematic structural diagram of a lifting assembly according to an embodiment of this disclosure; Figure 3 A schematic structural diagram of a support component provided in one embodiment of this disclosure; Figure 4 This is a schematic diagram of the assembly of a locating pin and a sliding member according to one embodiment of the present disclosure.

[0020] in, Figure 1 and Figure 2 The correspondence between the reference numerals and component names in the attached drawings is as follows: 100 Quick-change tool, 110 Lifting assembly, 111 Groove, 112 Lifting beam, 1121 Handle, 113 Baffle, 114 Rope loop, 120 Support assembly, 121 First beam, 122 Second beam, 130 Adjustment structure, 131 First guide rail, 132 Second guide rail, 133 Sliding element, 140 Positioning pin, 150 Third beam, 160 Third guide rail, 170 Connecting beam. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the description of these embodiments is intended to aid in understanding the invention, but does not constitute a limitation thereof. The specific structural and functional details disclosed herein are merely for describing exemplary embodiments of the invention. However, the invention can be embodied in many alternative forms and should not be construed as being limited to the embodiments described herein.

[0022] like Figures 1 to 4As shown, according to an embodiment of this disclosure, a quick-change tool 100 is provided for replacing the lower return idler of a single-unit cantilever belt conveyor. The tool includes: a lifting assembly 110 for supporting the lower return idler; and a support assembly 120, which is provided with an adjustment structure 130. The lifting assembly 110 is disposed on the support assembly 120 via the adjustment structure 130, and the adjustment structure 130 is used to adjust the horizontal position of the lifting assembly 110. Specifically, when disassembling the lower return idler to be replaced, the lifting assembly 110 is lifted to support the lower return idler, and the adjustment structure 130 is manipulated to adjust the horizontal movement of the lifting assembly 110 to a designated position. When installing the lower return idler to be installed, the adjustment structure 130 is manipulated to adjust the horizontal position of the lower return idler carried by the lifting assembly 110, and the lifting assembly 110 is lifted to the installation position.

[0023] It is understood that the quick-change tool 100 provided in this embodiment of the present disclosure is provided with a lifting component 110 and a support component 120. The lifting component 110 can be used to support the lower return idler roller, and its longitudinal position can be adjusted by a lifting device. The support component 120 is provided with an adjustment structure 130, through which the lifting component 110 can be mounted. The support component 120 can support the lifting component 110, and the adjustment structure 130 can adjust the horizontal position of the lifting component 110. With this configuration, when disassembling the lower return idler to be replaced, the lifting device can be operated to lift the lifting assembly 110 longitudinally, so that the lifting assembly 110 contacts the bottom of the lower return idler to be replaced. After the lower return idler to be replaced is fixed, the horizontal position of the lifting assembly 110 is adjusted by the adjusting assembly to completely separate the lower return idler to be replaced from the mounting shaft seat. Then the adjusting assembly continues to adjust the horizontal position of the lifting assembly 110, and the lifting assembly 110 moves the lower return idler to be replaced to the cantilever corridor, thereby completing the disassembly operation. When installing the lower return idler to be installed, the lower return idler to be installed can be fixed to the lifting assembly 110. The horizontal position of the lifting assembly 110 is adjusted to the mounting shaft seat by the adjusting assembly. The lower return idler to be installed at the lifting assembly 110 is then lifted above the mounting shaft seat by the lifting device. Subsequently, the horizontal position of the lifting assembly 110 is precisely adjusted by the adjusting assembly so that the mounting shafts at both ends of the lower return idler to be installed are aligned with the mounting shaft seat, thus completing the installation operation. The quick-change tool 100 enables the rapid installation and removal of the lower return idler, improving replacement efficiency and accuracy, avoiding damage from impacts during the replacement of the lower return idler, reducing the risk of injury to workers, and improving reliability.

[0024] In some examples, such as Figure 1 and Figure 2As shown, the lifting assembly 110 includes: a groove 111 for engaging the lower return idler roller; and a lifting beam 112, wherein the groove 111 is connected to the middle of the lifting beam 112, the lifting beam 112 is connected to the support assembly 120 via the adjustment structure 130, and handles 1121 are provided at both ends of the lifting beam 112 for connecting lifting equipment.

[0025] Understandably, the lifting assembly 110 may be equipped with a trough 111 and a lifting beam 112. The trough 111 may be an arc-shaped groove to match the shape of the lower return idler, reducing the swaying amplitude of the lower return idler within the trough 111 and improving stability. The trough 111 is connected to the middle of the lifting beam 112 to ensure force balance. The lifting beam 112 can be connected to the support assembly 120 via an adjustment structure 130. The position of the lifting beam 112 relative to the support assembly 120 in the horizontal plane can be adjusted via the adjustment structure 130, thereby adjusting the position of the trough 111 relative to the mounting shaft of the single-unit cantilever belt conveyor in the horizontal plane. Furthermore, handles 1121 may be provided at both ends of the lifting beam 112. The lifting beam 112 can be connected to the lifting device via the handles 1121, thereby adjusting the longitudinal position of the lifting beam 112 through the lifting device and avoiding interference with the components of the single-unit cantilever belt conveyor during adjustment, improving reliability.

[0026] In some examples, such as Figure 1 and Figure 2 As shown, the quick-change tool 100 also includes a baffle 113, which is disposed on the side of the groove 111 away from the lifting beam 112.

[0027] Understandably, the quick-change tool 100 may also be equipped with a baffle 113. Specifically, the baffle 113 may be set on the side of the trough 111 away from the lifting beam 112. The baffle 113 limits the lower return idler roller to prevent it from deviating from the trough 111 during installation or disassembly operations, thereby improving stability.

[0028] In some examples, such as Figure 1 and Figure 2 As shown, the quick-change tool 100 also includes a rope loop 114, which is disposed at both ends of the lifting beam 112. When the lower return idler is placed in the trough 111, the lower return idler is fixed by the rope loop 114.

[0029] Understandably, the quick-change tool 100 may also be equipped with rope loops 114. Specifically, two rope loops 114 may be provided, located at both ends of the lifting beam 112. During disassembly operations, when the bottom of the lower return idler to be replaced is engaged in the groove 111 of the lifting assembly 110, the lower return idler can be secured with ropes to facilitate subsequent movement. During installation operations, the lower return idler to be installed can be placed in the groove 111 and secured with ropes to facilitate subsequent movement and improve stability.

[0030] In some examples, the quick-change tool 100 further includes: a stop block, wherein slide rails are provided at both ends of the lifting beam 112, the stop block is slidably disposed on the slide rails, and the stop block is used to press against the end of the lower return idler roller; and a positioning block, disposed on the slide rails, for fixing the stop block. Understandably, the quick-change tool 100 may also be equipped with stops. Specifically, slide rails are provided at both ends of the lifting beam 112, extending along the length of the lifting beam 112. Stops can be installed in the trough 111 and can slide along the slide rails to adjust the distance between the two stops. With this configuration, after the lower return idler is placed in the trough 111, the distance between the stops is adjusted, and the stops are fixed by positioning blocks. This limits the displacement of both ends of the lower return idler by the stops, improving placement stability and adapting to lower return idlers of different lengths, thus improving applicability.

[0031] Understandably, the slide rail can be provided with positioning holes along its length, and positioning blocks can be inserted into different positioning holes to adjust the position of the positioning blocks on the slide rail, thereby adapting to positioning blocks in different positions and improving applicability.

[0032] In some examples, such as Figure 1 and Figure 3 As shown, the support assembly 120 includes: a first beam 121; a second beam 122 connected to the first beam 121 and perpendicular to the first beam 121, the first beam 121 and the second beam 122 being located in the same horizontal plane, and the adjustment structure 130 being disposed on the first beam 121 and the second beam 122 to allow the lifting beam 112 to move along the first beam 121 or the second beam 122.

[0033] Understandably, the support assembly 120 may include a first beam 121 and a second beam 122. The second beam 122 is connected to the first beam 121 and lies on the same horizontal plane. The lifting beam 112 is parallel to the first beam 121, and the second beam 122 is perpendicular to the first beam 121. An adjustment structure 130 may be provided on the first beam 121 and the second beam 122 to adjust the movement of the lifting beam 112 along the first beam 121 and the second beam 122, thereby increasing the range of motion of the lifting beam 112 and improving its applicability.

[0034] For example, there may be one first beam 121 and two second beams 122, with the two second beams 122 arranged in parallel.

[0035] In some examples, such as Figure 1 and Figure 3 As shown, the adjustment structure 130 includes: a first guide rail 131, which is provided on the first beam 121 along the extension direction of the first beam 121; a second guide rail 132, which is provided on the second beam 122 along the extension direction of the second beam 122, wherein the first guide rail 131 is connected to the second guide rail 132; a sliding member 133, which is slidably connected to the first guide rail 131 or the second guide rail 132, wherein the lifting beam 112 is connected to the sliding member 133.

[0036] It is understood that the adjustment structure 130 may be provided with a first guide rail 131 and a second guide rail 132. The first guide rail 131 is disposed on the first beam 121 along the extension direction of the first beam 121, and the second guide rail 132 is disposed on the second beam 122 along the extension direction of the second beam 122. The first guide rail 131 is connected to the second guide rail 132, allowing the sliding member 133 to slide along the first guide rail 131 to the second guide rail 132. The lifting beam 112 is connected to the sliding member 133, thereby causing the lifting beam 112 to move along the first guide rail 131 or the second guide rail 132 through the sliding of the sliding member 133, so as to accurately adjust the distance between the lower return idler roller and the mounting shaft on the horizontal plane.

[0037] In some examples, such as Figure 4 As shown, the quick-change tool 100 also includes a positioning pin 140. The lifting beam 112 has a through hole, and the positioning pin 140 passes through the through hole and is connected to the sliding member 133.

[0038] Understandably, the quick-change tool 100 may be equipped with a positioning pin 140. Specifically, multiple through holes may be provided along the length of the lifting beam 112, through which the positioning pin 140 can pass and connect to the sliding member 133, so that the sliding member 133 drives the positioning pin 140 to slide, thereby driving the lifting beam 112 to move. While restricting the longitudinal displacement of the lifting beam 112 relative to the first beam 121 by the positioning pin 140, the smooth sliding of the lifting beam 112 along the first beam 121 and the second beam 122 is ensured.

[0039] It should be noted that the locating pin 140 can be integrated with the sliding member 133 to improve structural strength and ensure stability. Lubrication structures can be provided in the first guide rail 131 and the second guide rail 132 to ensure smooth sliding of the sliding member 133, reduce friction, and extend service life.

[0040] In some examples, such as Figure 1 and Figure 3 As shown, the quick-change tool 100 further includes: a third beam 150 connected to the second beam 122 via a connecting beam 170, the third beam 150 being parallel to the first beam 121; a third guide rail 160 extending along the extension direction of the third beam 150; and a support member slidably connected to the third guide rail 160, the support member being used to support the belt of the lower return idler roller.

[0041] It is understood that the quick-change tool 100 may also include a third beam 150, a third guide rail 160, and a support member. The third beam 150 is connected to the side of the second beam 122 opposite to the first beam 121 via a connecting beam 170, and the third beam 150 is parallel to the first beam 121. A third guide rail 160 is provided along the extending direction of the third beam 150. The support member can slide along the third guide rail 160 and can be used to support the belt of the lower return idler, preventing belt collapse and interference during the replacement of the lower return idler, thus improving replacement stability and efficiency. For example, a small jack may be used as the support member.

[0042] In some examples, the quick-change tool 100 further includes: a traveling wheel disposed at the bottom of the second beam 122 and / or the third beam 150; and a brake for braking the traveling wheel.

[0043] Understandably, the quick-change tool 100 may also be equipped with wheels and brakes. The wheels can be located at the bottom of the second beam 122 and the third beam 150 to facilitate transporting the quick-change tool 100 and improve transport efficiency. After the quick-change tool 100 reaches the designated position, the brakes can press against the wheels to brake them, ensuring the quick-change tool 100 remains in place and improving reliability.

[0044] It should be understood that the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. Although the terms "first," "second," etc., may be used herein to describe various units, these units should not be limited by these terms. These terms are only used to distinguish one unit from another. For example, a first unit may be referred to as a second unit, and similarly, a second unit may be referred to as a first unit, without departing from the scope of the exemplary embodiments of the invention.

[0045] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article describes another relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.

[0046] It should be understood that in the description of this invention, the terms "upper," "vertical," "inner," "outer," etc., indicate the orientation or positional relationship as commonly placed when the disclosed product is used, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0047] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments of the invention. As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” “containing,” and / or “including” as used herein specify the presence of the stated features, integers, steps, operations, units, and / or components, and do not exclude the presence or addition of one or more other features, quantities, steps, operations, units, components, and / or combinations thereof.

[0049] Specific details are provided in the following description to provide a complete understanding of the exemplary embodiments. However, those skilled in the art will understand that the exemplary embodiments can be implemented without these specific details. In other embodiments, well-known processes, structures, and techniques may be omitted in the depiction of non-essential details to avoid obscuring the exemplary embodiments.

[0050] The above are merely specific embodiments of this application, enabling those skilled in the art to understand or implement 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. 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 claimed herein.

[0051] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art.

Claims

1. A quick-change tool for replacing the lower return idler roller of a single-unit cantilever belt conveyor, characterized in that, include: A lifting assembly is used to support the lower return idler roller; A support assembly is provided with an adjustment structure, and a lifting assembly is disposed on the support assembly through the adjustment structure, wherein the adjustment structure is used to adjust the position of the lifting assembly in the horizontal direction. In the case of disassembling the lower return idler to be replaced, the lifting assembly is raised to support the lower return idler to be replaced, and the adjusting structure is manipulated to adjust the horizontal movement of the lifting assembly to a designated position; in the case of installing the lower return idler to be installed, the adjusting structure is manipulated to adjust the horizontal position of the lower return idler to be installed carried by the lifting assembly, and the lifting assembly is raised to the installation position.

2. The quick-change tool according to claim 1, characterized in that, The lifting component includes: The groove is used to engage the lower return idler roller; A lifting beam is provided, the groove is connected to the middle of the lifting beam, the lifting beam is connected to the support assembly through the adjustment structure, and handles are provided at both ends of the lifting beam for connecting lifting equipment.

3. The quick-change tool according to claim 2, characterized in that, Also includes: A baffle is provided on the side of the trough away from the lifting beam.

4. The quick-change tool according to claim 2, characterized in that, Also includes: Rope loops are provided at both ends of the lifting beam to fix the lower return idler when the lower return idler is placed in the trough.

5. The quick-change tool according to claim 2, characterized in that, Also includes: The lifting beam has slide rails at both ends, and the stop block is slidably disposed on the slide rails. The stop block is used to press against the end of the lower return idler roller. A positioning block is disposed on the slide rail and is used to fix the stop block.

6. The quick-change tool according to claim 2, characterized in that, The support components include: First beam body; A second beam is connected to the first beam and is perpendicular to the first beam. The first beam and the second beam are located in the same horizontal plane. The adjustment structure is provided on the first beam and the second beam to allow the lifting beam to move along the first beam or the second beam.

7. The quick-change tool according to claim 6, characterized in that, The adjustment structure includes: The first guide rail is provided on the first beam along the extension direction of the first beam; The second guide rail is provided on the second beam along the extension direction of the second beam, and the first guide rail is connected to the second guide rail; A sliding member is slidably connected to the first guide rail or the second guide rail, and the lifting beam is connected to the sliding member.

8. The quick-change tool according to claim 7, characterized in that, Also includes: The lifting beam has a through hole, and the positioning pin passes through the through hole and is connected to the sliding member.

9. The quick-change tool according to claim 7, characterized in that, Also includes: The third beam is connected to the second beam via a connecting beam, and the third beam is parallel to the first beam. The third guide rail is provided on the third beam along the extension direction of the third beam; A support member is slidably connected to the third guide rail, and the support member is used to support the belt of the lower return idler.

10. The quick-change tool according to claim 9, characterized in that, Also includes: Walking wheels are provided at the bottom of the second beam and / or the third beam; Braking components are used to brake the traveling wheels.

Images