Coke oven ascension pipe part replacing device

Abstract

The invention provides a coke oven ascension pipe part replacement device which is used for replacing parts such as a water seal seat, a bridge pipe, a three-way pipe, a vertical pipe and a base of a coke oven ascension pipe, and the replacement device comprises a frame and a linear sliding device group, the whole frame is of a hollow structure and supports the linear sliding device set. The linear sliding device set comprises a first linear sliding device, a second linear sliding device and a third linear sliding device which are each provided with a guide rail and a sliding device, the first linear sliding device is installed on the top of the frame and used for supporting a three-way pipe, and the second linear sliding device is installed on the outer side face of the frame and can be additionally provided with a bridge pipe supporting mechanism. The third linear sliding device is installed at the bottom of the frame, and a base supporting device can be additionally installed and used for supporting and moving a base. According to the replacement device, the posture adjustment problem in the replacement process of the ascending pipe component of the furnace can be avoided, so that crane use and manpower consumption are reduced, and the component replacement efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of special equipment maintenance, and in particular to a coke oven riser component replacement device. Background Art

[0002] In the coke oven area maintenance project of the ironmaking plant, due to the influence of high temperature and dust in the furnace body, the various components of the coke oven top riser (water seal seat, bridge pipe, riser and base) need to be frequently replaced. Before replacing the above-mentioned riser components (water seal seat, bridge pipe, riser and base), the riser components need to be disassembled to change the riser from an assembly into discrete parts. The disassembly steps are as follows: 1. First, use a crane to lift the riser to keep it in a vertical state, then let the riser base fall to the ground, and then manually disassemble it. 1. Remove the base; 2. Use a crane to dump the riser to the ground, then manually remove the vertical pipe of the riser, and then use a crane to move the water seal seat, tee, and bridge pipe to the open space next to it; 3. Use a crane again to place the water seal seat, tee, and bridge pipe vertically, so that the bottom of the bridge pipe touches the ground, then remove the bolts at the connection between the bridge pipe and the tee, and then use a crane to lift the tee and water seal seat as a whole; 4. Finally, dump the remaining parts to the ground to separate the tee and water seal seat, and the disassembly sequence of the riser parts is completed. After the disassembly is completed, the damaged parts will be replaced. The riser is huge in size, and the whole process requires the cooperation of a crane, and personnel are also required to cooperate in the disassembly and installation operations, which is time-consuming and labor-intensive, so that the shifts are not well utilized, and there are also safety hazards for the staff during the construction process. Summary of the invention

[0003] In view of the problems that traditional replacement methods are time-consuming and labor-intensive, have high labor costs, pose safety hazards during the operation process, and cannot replace riser components in batches, the present application provides a coke oven riser component replacement device to solve the above problems.

[0004] To achieve the above objectives, this application provides the following technical solutions:

[0005] The present application provides a coke oven riser component replacement device, comprising:

[0006] A coke oven riser component replacement device, wherein the coke oven riser component comprises a water seal seat, a bridge pipe, a tee pipe, a riser pipe and a base, and is characterized in that it comprises:

[0007] The frame is open at the top and has a hollow structure overall;

[0008] The first linear sliding device, the second linear sliding device and the third linear sliding device are all provided with guide rails and sliding devices. The first linear sliding device is installed on the top of the frame, the second linear sliding device is installed on the outer side of the frame, and the third linear sliding device is installed on the bottom of the frame.

[0009] In one embodiment, it also includes:

[0010] A bridge tube support portion, located outside the frame, the bridge tube support portion is mounted on the second linear slide device and can slide along the second linear slide device;

[0011] In one embodiment, it also includes:

[0012] The base support part is installed on the third linear slide device and can slide along the third linear slide device. The base support part is used to lift and horizontally move the base.

[0013] In one embodiment, the first linear sliding device includes a first motor, a first rail and N first sliders, the first rail is provided with N first sliders inside and is fixed to the top of the frame, the first motor is installed at the end of the first rail and provides power for the N first sliders, so that the N first sliders slide relative to the first rail, where N≥1.

[0014] In one embodiment, the second linear sliding device includes a second motor, a second track and N second sliders, the second track is provided with N second sliders inside and is fixed to the outer side of the frame, the second motor is installed at the end of the second track and provides power for the N second sliders, so that the N second sliders slide relative to the second track, where N≥1.

[0015] In one embodiment, the third linear sliding device includes a third motor, a third rail and N third sliders, the third rail is provided with N third sliders inside and is fixed to the bottom of the frame, the third motor is installed at the end of the third rail and provides power for the N third sliders, so that the N third sliders slide relative to the third rail, where N≥1.

[0016] In one embodiment, the first slider is used to install and move the three-way protrusion, and can drive the three-way protrusion to slide along the first track.

[0017] In one embodiment, the bridge pipe support portion includes a bridge pipe support, a first connection portion, and a second connection portion;

[0018] The bridge pipe support is used to support the bridge pipe;

[0019] The first connection part and the second connection part are used to support the bridge tube support. The number of the second linear sliding devices is 2, which are arranged up and down on the side of the frame in the vertical direction. One end of the first connection part is fixedly connected to the bridge tube support, and the other end is fixedly connected to the second slider of the second linear sliding device above. One end of the second connection part is fixedly connected to the bridge tube support, and the other end is fixedly connected to the second slider of the second linear sliding device below.

[0020] In one embodiment, the base support portion includes a lifting component and a supporting component;

[0021] The lifting component is fixedly connected to the third slider and can slide along the third track along with the third slider;

[0022] The supporting component is fixedly connected to the lifting rod in the lifting component, can move in the vertical direction, and is used to receive the base.

[0023] In one embodiment, the replacement device further comprises a plurality of universal wheels, and the plurality of universal wheels are mounted on the bottom of the frame.

[0024] This application has at least the following technical effects:

[0025] 1. The frame structure of the device of the present application can support the riser and assist the riser in replacing parts, eliminating the problem of the need to constantly adjust the riser's posture during the replacement of the riser's parts (the crane controls the riser to tilt and the riser to be placed vertically). In addition, since the use of cranes is reduced, the risk of parts falling during operation is also reduced;

[0026] 2. The device of the present application is provided with multiple sets of slides, which can be used to move components at various parts (top, middle, and bottom) of the riser, thus reducing the use of manpower costs;

[0027] 3. The device of the present application can place multiple riser pipes at the same time, and replace components of multiple riser pipes at the same time, which can improve labor efficiency;

[0028] 4. The method of the present application is a collaborative method of manual labor and machines. The staff only needs to fix and disassemble the riser components, and there is no need to carry the riser components, which can greatly reduce the labor intensity of the work. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solution of the implementation scheme of the present application, the drawings required for use in the implementation scheme will be briefly introduced below. It should be understood that the following drawings only show certain implementation schemes of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 This is a schematic diagram of the overall structure of a coke oven riser component replacement device in one embodiment of the present application;

[0031] Figure 2 for Figure 1 Schematic diagram of the main view of the coke oven riser component replacement device;

[0032] Figure 3 for Figure 1 Left side view of the coke oven riser component replacement device;

[0033] Figure 4 for Figure 1 Schematic diagram of the overhead view of the coke oven riser component replacement device;

[0034] Figure 5 for Figure 1 Schematic diagram of the upper part of the coke oven riser component replacement device;

[0035] Figure 6 for Figure 1 Schematic diagram of the lower half of the coke oven riser component replacement device;

[0036] Figure 7 for Figure 1 Schematic diagram of the structure of the coke oven riser component replacement device at location A;

[0037] Figure 8 for Figure 1 Schematic diagram of the structure of the coke oven riser component replacement device at B;

[0038] Fig. 9 It is a schematic diagram of the overall structure of the coke oven riser;

[0039] Fig.10 This is a schematic diagram of the coordination between a coke oven riser and a coke oven riser component replacement device in one embodiment of the present application;

[0040] Fig.11 for Fig.10 Left side schematic diagram of coke oven riser and coke oven riser component replacement device;

[0041] Fig.12 This is a schematic diagram of the working conditions for batch replacement of coke oven riser components in one embodiment of the present application.

[0042] Reference numerals:

[0043] 1. Frame; 2. Plate; 3. First linear slide; 31. First motor; 32. First track; 33. First slider; 4. Second linear slide; 41. Second motor; 42. Second track; 43. Second slider; 5. Third linear slide; 51. Third motor; 52. Third track; 53. Third slider; 6. Base support; 61. Lifting component; 62. Support component; 7. Universal wheel; 8. Control box; 9. Bridge pipe support; 91. Bridge pipe support; 92. First connecting part; 93. Second connecting part; 10. Coke oven riser; 101. Water seal seat; 102. Bridge pipe; 103. Tee pipe; 1031. Tee protrusion; 104. Vertical pipe; 105. Base. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0045] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0046] Embodiment 1

[0047] This embodiment provides a coke oven riser component replacement device. Figure 1-3 As shown, the replacement device comprises a frame 1, a first linear slide device 3, a second linear slide device 4 and a third linear slide device 5;

[0048] The frame 1 is open at the top and has a hollow structure as a whole, and is constructed by columns and beams. For example, H-steel / square tubes / angle steels are used as columns and beams, and the columns and beams are used to build the rectangular frame 1. In addition, a ladder is provided along the vertical direction of the frame 1 to facilitate workers to go up and down;

[0049] An even number of first linear sliding devices 3 include guide rails and sliding modules, wherein the guide rails are arranged along the top cross beam of the frame 1 and are fixed to the top of the frame 1 in a symmetrical and mutually parallel manner, and a sliding module is provided inside the guide rails that can move along the top cross beam of the frame 1, and the sliding module is used to fix and translate the coke oven riser components, such as used to move the tee pipe 103;

[0050] The second linear sliding device 4 includes a guide rail and a sliding module, wherein the guide rail is arranged along the side cross beam of the frame 1, and a sliding module that can move along the side cross beam of the frame 1 is provided inside the guide rail, and the sliding module is used to fix and translate components of the coke oven tube, such as for moving the bridge tube 102; in this embodiment, the number of the second linear sliding devices 4 can be one or more, and when the number is more than one, they are arranged on the side cross beam of the frame 1 from top to bottom along the vertical direction.

[0051] The third linear sliding device 5 includes a guide rail and a sliding module, wherein the guide rail is arranged along the bottom cross beam of the above-mentioned rectangular structure, and a sliding module that can move along the bottom cross beam of the above-mentioned frame 1 is provided inside the guide rail. The sliding module is used to fix and translate components of the coke oven tube, such as for moving the base 105 or the combination of the riser 104 and the base 105.

[0052] In summary, the coke oven riser component replacement device of the above-mentioned embodiment can transport and support the coke oven riser components through the sliding devices arranged on the top, the outside and the bottom respectively, avoiding the posture adjustment problem when replacing the coke oven riser components, thereby reducing the use of cranes and manpower and improving the replacement efficiency of the coke oven riser components.

[0053] In this embodiment, the first linear sliding device 3, the second linear sliding device 4 and the third linear sliding device 5 all include guide rails and sliding modules, including a variety of linear motion mechanisms, for example: the guide rail is a linear guide rail, and the sliding module is an electric slider; or, the guide rail is a rack, and the sliding module is a gear; or, the guide rail is a lead screw, and the sliding module is a lead screw nut.

[0054] In this embodiment, the replacement device further includes a bridge tube support portion 9 and a base support portion 6;

[0055] like Figure 5 As shown, the bridge tube support part 9 is installed on the sliding device of the second linear sliding device 4, and is used to support and translate the bridge tube 102. When working, the bottom of the bridge tube 102 is fixed to the top of the bridge tube support part 9, and then the sliding module of the second linear sliding device 4 is driven to translate the bridge tube 102 to other positions;

[0056] like Figure 6 As shown, the base support part 6 is installed on the sliding device of the above-mentioned third linear sliding device 5, and is used to support and translate the base 105. During operation, the bottom of the base 105 is fixed to the appropriate position of the bridge tube base support part 6, so that the base support part 6 can completely hold the base 105, and then drive the sliding device of the third linear sliding device 5 to translate the base 105 to other positions.

[0057] like Figure 4As shown, in this embodiment, the first linear sliding device 3 includes a first motor 31, a first rail 32 and a plurality of first sliders 33;

[0058] The first track 32 is arranged along the top crossbeam of the frame 1 and fixed to the top of the frame 1. A screw is provided in the first track 32. Preferably, the number of the first track 32 is 2 and they are symmetrically arranged on the top of the frame 1.

[0059] The first motor 31 is fixedly connected to one end of the first track 32 and can drive the screw to rotate forward or reversely. The number of the first motor 31 is equal to the number of the first tracks 32.

[0060] A rectangular platform is provided on the top of the multiple first sliders 33 (the platform can be used to lift the coke oven riser components, such as the three-way protrusion 1031), and a threaded hole is provided in the horizontal direction, which is threadedly connected to the screw in the above-mentioned first track 32. When the above-mentioned first motor 31 rotates forward or reversely, the first slider 33 can be driven to slide along the first track 32, thereby driving the component fixed to the three-way protrusion 1031 to move, wherein the number of the first slider 33 can be 1.

[0061] like Figure 7 As shown, in this embodiment, the second linear sliding device 4 includes a second motor 41, a second rail 42 and a plurality of second sliders 43;

[0062] The second rails 42 are distributed in the vertical direction, arranged along the side (middle) cross beam of the frame 1, and fixed to the side of the frame 1. Screws are arranged in the second rails 42. The number of the second rails 42 is preferably 2, which are arranged vertically up and down.

[0063] The second motor 41 is fixedly connected to one end of the second track 42 and can drive the screw to rotate forward or reverse, and the number of the second motor 41 is equal to the number of the second track 42;

[0064] A rectangular platform is provided on the top of the multiple second sliders 43 (the platform can be used to connect other components, such as the bridge tube support part 9), and a threaded hole is provided in the horizontal direction, which is threadedly connected to the screw in the above-mentioned second track 42. When the above-mentioned second motor 41 rotates forward or reversely, the second slider 43 can be driven to slide along the second track 42, thereby driving the movement with the bridge tube support part 9, wherein the number of the second slider 43 can be 1.

[0065] like Figure 8 As shown, in this embodiment, the third linear sliding device 5 includes a third motor 51, a third rail 52 and a plurality of third sliders 53;

[0066] The third track 52 is arranged along the bottom crossbeam of the frame 1 and fixed to the bottom of the frame 1. A screw is arranged in the third track 52. The number of the third track 52 may be 1.

[0067] The third motor 51 is fixedly connected to one end of the third track 52 and can drive the screw to rotate forward or reversely. The number of the third motor 51 is equal to the number of the third track 52.

[0068] A rectangular platform is provided on the top of the multiple third sliders 53 (the platform can be used to connect other components, such as the base support part 6), and a threaded hole is provided in the horizontal direction, which is threadedly connected to the screw in the third track 52. When the above-mentioned third motor 51 rotates forward or reversely, the third slider 53 can be driven to slide along the third track 52, thereby driving the movement with the base support part 6, wherein the number of the third slider 53 is preferably 1.

[0069] Likewise Figure 7 As shown, in this embodiment, the bridge tube support portion 9 includes a bridge tube support 91, a first connecting portion 92 and a second connecting portion 93;

[0070] The bridge pipe support 91 has a disc-shaped bottom and a hollow cylindrical top, and is used to provide support for the bridge pipe 102;

[0071] The first connection part 92 and the second connection part 93 are rod-shaped and provide support for the bridge tube support 91. The second rails 42 are two in number and arranged vertically up and down. One end of the first connection part 92 is fixedly connected to the upper second slider 43 and the other end is fixedly connected to the bridge tube support 91. One end of the second connection part 93 is fixedly connected to the lower second slider 43 and the other end is fixedly connected to the bridge tube support 91.

[0072] When working, the bridge tube 102 is placed on the bridge tube support 91 , and the bridge tube support 91 is driven by the second slider 43 to achieve the action of translating the bridge tube 102 .

[0073] In this embodiment, the second slider 43 can be directly designed as a circular disc structure with a lifting device, and the bridge pipe 102 can be directly placed on the second slider 43 for movement, or the bridge pipe support 91 can be directly fixed to the second slider 43 without other connecting parts.

[0074] Likewise Figure 8 As shown, in this embodiment, the base support portion 6 includes a lifting component 61 and a supporting component 62;

[0075] The bottom of the lifting component 61 is fixed to the third slider 53 and can slide along the third track 52 along with the third slider 53;

[0076] The support member 62 is fixed to the lifting rod of the lifting member 61, can move in the vertical direction, and is provided with a claw structure for receiving the base 105;

[0077] When working, the base 105 is placed in the middle of the support component 62, and then raised in the vertical direction so that the support component 62 fits the bottom of the base 105, and then the third slider 53 is moved to achieve the translation of the base 105.

[0078] In this embodiment, a coke oven riser component replacement device further includes a plurality of universal wheels 7, and the plurality of universal wheels 7 are fixedly connected to the bottom of the frame 1 to facilitate the transfer of the replacement device.

[0079] In this embodiment, a coke oven riser component replacement device further includes a plurality of flat plates 2, which are fixedly connected to the top cross beam of the frame 1 to facilitate workers to stand.

[0080] In this embodiment, a coke oven riser component replacement device also includes a control box 8, which is used to control the movement of sliders in the first linear sliding device 3, the second linear sliding device 4 and the third linear sliding device 5, and can also be used to control the lifting and lowering of the base support part 6.

[0081] Embodiment 2

[0082] Based on the coke oven riser component replacement device described in "Example 1", this embodiment provides a replacement method for "different components of the coke oven riser", which specifically includes the following methods:

[0083] The method for replacing the coke oven riser water seal seat 101 specifically comprises the following steps:

[0084] SA1. Use a crane to hoist the coke oven riser 10 into the frame 1;

[0085] like Figure 10-11 As shown, in this embodiment, the coke oven riser 10 is provided with a three-way protrusion 1031, and the three-way protrusion 1031 is placed on the top of the frame 1;

[0086] SA2. The staff climbs to the flat plate 2 and removes the bolts between the water seal seat 101 and the tee pipe 103;

[0087] SA3. Use a crane to lift away the old water seal seat 101;

[0088] SA4. Use a crane to hoist the new water seal seat 101 to the top of the three-way pipe 103, and the staff connects the new water seal seat 101 and the three-way pipe 103.

[0089] The replacement method of the coke oven riser bridge pipe 102 specifically comprises the following steps:

[0090] SB1. Use a crane to hoist the coke oven riser 10 into the frame 1;

[0091] like Figure 10-11As shown, in this embodiment, the coke oven riser 10 is provided with a three-way protrusion 1031, and the three-way protrusion 1031 is placed on the top of the frame 1;

[0092] SB2, start the second linear sliding device 4, drive the bridge tube support 91 to the bottom of the bridge tube 102, and place the bottom of the bridge tube 102 on the bridge tube support 91;

[0093] In this embodiment, the bridge pipe support 91 has a circular disc-shaped structure at the bottom and a cylindrical structure at the top. The bridge pipe 102 has a diameter larger than the cylindrical structure and is mounted on the cylindrical structure. The bottom of the bridge pipe 102 is placed on the circular disc.

[0094] SB3. The staff climbed to the platform 2 and removed the bolts between the bridge pipe 102 and the tee pipe 103;

[0095] SB4. Use the bridge pipe support 91 to move the old bridge pipe 102 to another location;

[0096] In this embodiment, the staff controls the movement of the second linear slide device 4 through the control box 8 , thereby driving the bridge tube support 91 to translate the bridge tube 102 .

[0097] SB5. Use a crane to replace the new bridge pipe 102, and the staff connects the new bridge pipe 102 and the three-way pipe 103.

[0098] In this embodiment, a crane can be used to place the new bridge pipe 102 on the bridge pipe support 91 , and then the new bridge pipe 102 can be translated to the tee pipe 103 . Then the staff connects the bridge pipe 102 and the tee pipe 103 to complete the replacement of the bridge pipe 102 .

[0099] The method for replacing the coke oven riser base 105 specifically comprises the following steps:

[0100] SC1. Use a crane to hoist the coke oven riser 10 into the frame 1, and align the base 105 with the middle position of the support component 62;

[0101] SC2. Use the lifting component 61 to drive the supporting component 62 to rise, so that the top of the supporting component 62 fits with the bottom of the base 105;

[0102] SC3. The staff removes the bolts between the base 105 and the riser 104;

[0103] SC3, start the third linear sliding device 5 to move the base 105 to another position, and lower the base 105 to the ground;

[0104] SC4. Place the new base 105 on the support member 62 and move it below the riser 104;

[0105] SC5 and the supporting component 62 lift the base 105 , and the staff connects the base 105 and the riser 104 .

[0106] In this embodiment, the staff can also lift the base 105 by using a jack or other device, and then connect the base 105 and the riser 104 to complete the replacement of the base 105 .

[0107] The method for replacing the coke oven riser standpipe 104 specifically comprises the following steps:

[0108] SD1, place the assembled new riser 104 and base 105 in the frame 1 in advance;

[0109] SD2. Use a crane to hoist the coke oven riser 10 into the frame 1, align the base 105 with the middle position of the support component 62, and install the three-way protrusion 1031 to the first slider 33;

[0110] SD3, use the lifting component 61 to drive the supporting component 62 to rise, so that the top of the supporting component 62 fits with the bottom of the base 105;

[0111] SD4. The staff removes the bolts between the tee pipe 103 and the riser pipe 104;

[0112] SD5, use the first linear sliding device 3 to drive the water seal seat 101, the bridge pipe 102 and the tee pipe 103 as a whole to the new riser 104 and the base 105;

[0113] SD6. Move the support component 62 to the new riser 104 and the base 105. The support component 62 rises, lifts the new riser 104 and the base 105 to the bottom of the tee pipe 103, and the staff connects the riser 104 and the base 105.

[0114] like Fig.12 As shown, in this embodiment, the replacement device can accommodate multiple coke oven risers at the same time, and the water seal seat 101 / bridge pipe 102 / riser pipe 104 / base 105 of each coke oven riser can be replaced at the same time, for example, Fig.12 The water seal seat 101 at C, the bridge pipe 102 at D and the base 105 at E.

[0115] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A coke oven riser component replacement device, wherein the coke oven riser component comprises a water seal seat (101), a bridge pipe (102), a tee pipe (103), a riser pipe (104) and a base (105), characterized in that: include: The frame (1) is open at the top and has a hollow structure as a whole; The first linear sliding device (3), the second linear sliding device (4) and the third linear sliding device (5) are all provided with guide rails and sliding devices; the first linear sliding device (3) is installed on the top of the frame (1); the second linear sliding device (4) is installed on the outer side of the frame (1); and the third linear sliding device (5) is installed on the bottom of the frame (1).

2. The replacement device according to claim 1, characterized in that: Also includes: The bridge tube support part (9) is located outside the frame (1); the bridge tube support part (9) is installed on the second linear sliding device (4) and can slide along the second linear sliding device (4).

3. The replacement device according to claim 2, characterized in that: Also includes: The base support part (6) is installed on the third linear slide device (5) and can slide along the third linear slide device (5). The base support part (6) is used to lift and horizontally move the base (105).

4. The replacement device according to claim 3, characterized in that: The first linear sliding device (3) comprises a first motor (31), a first rail (32) and N first sliders (33); the first rail (32) is provided with N first sliders (33) inside and is fixedly connected to the top of the frame (1); the first motor (31) is installed at the end of the first rail (32) and provides power for the N first sliders (33), so that the N first sliders (33) slide relative to the first rail (32), wherein N≥1.

5. The replacement device according to claim 3, characterized in that: The second linear sliding device (4) comprises a second motor (41), a second rail (42) and N second sliders (43); the second rail (42) is provided with N second sliders (43) inside and is fixedly connected to the outer side of the frame (1); the second motor (41) is installed at the end of the second rail (42) and provides power for the N second sliders (43), so that the N second sliders (43) slide relative to the second rail (42), where N≥1.

6. The replacement device according to claim 3, characterized in that: The third linear sliding device (5) comprises a third motor (51), a third rail (52) and N third sliders (53); the third rail (52) is provided with N third sliders (53) inside and is fixed to the bottom of the frame (1); the third motor (51) is installed at the end of the third rail (52) and provides power for the N third sliders (53), so that the N third sliders (53) slide relative to the third rail (52), wherein N≥1.

7. The replacement device according to claim 4, characterized in that: The first sliding block (33) is used to install a movable three-way protrusion (1031), and can drive the three-way protrusion (1031) to slide along the first track (32).

8. The replacement device according to claim 5, characterized in that: The bridge pipe support portion (9) comprises a bridge pipe support (91), a first connecting portion (92) and a second connecting portion (93); The bridge pipe support (91) is used to support the bridge pipe (102); The first connecting part (92) and the second connecting part (93) are used to support the bridge tube support (91); the number of the second linear sliding devices (4) is 2, which are arranged vertically on the side of the frame (1); one end of the first connecting part (92) is fixedly connected to the bridge tube support (91), and the other end is fixedly connected to the second slider (43) of the second linear sliding device (4) above; one end of the second connecting part (93) is fixedly connected to the bridge tube support (91), and the other end is fixedly connected to the second slider (43) of the second linear sliding device (4) below.

9. The replacement device according to claim 6, characterized in that: The base support part (6) comprises a lifting component (61) and a supporting component (62); The lifting component (61) is fixedly connected to the third slider (53) and can slide along the third track (52) along with the third slider (53); The supporting component (62) is fixedly connected to the lifting rod in the lifting component (61), can move in the vertical direction, and is used to receive the base (105).

10. The replacement device according to claim 3, characterized in that: The replacement device also includes a plurality of universal wheels (7), and the plurality of universal wheels (7) are installed at the bottom of the frame (1).

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