Quick tool changing device of shield tunneling machine and using method

Abstract

The invention relates to the technical field of tunnel construction equipment, in particular to a shield tunneling machine rapid tool changing device and a using method, the shield tunneling machine rapid tool changing device comprises a supporting mechanism, the supporting mechanism comprises a vehicle body, a supporting frame, a rotating frame and a rotating component, the supporting frame is rotatably connected to the top of the vehicle body, and a plurality of supporting wheels are rotatably connected to the opposite inner surface walls of the two sides of the supporting frame at equal intervals. During use, a replaced hob body is placed on the extension frame close to the carrying frame, then the other extension frame can be close to one side of the hob body to be replaced by moving the vehicle body, and then a first adjusting motor is controlled to be started, so that the first adjusting motor is matched with an adjusting gear to drive an adjusting gear ring to rotate; and meanwhile, a second adjusting motor is controlled to be started, so that the second adjusting motor can be matched with an adjusting worm, an adjusting worm gear and an adjusting bevel gear to drive an adjusting threaded rod to rotate.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel construction equipment, and specifically relates to a quick tool changing device for a shield machine and a use method thereof. Background Art

[0002] The shield machine is the core equipment in tunnel excavation construction. Its cutterhead is used to cut the soil and rock in front. However, due to long-term high-intensity operation, the cutters on the shield machine cutterhead will gradually wear out, affecting the cutting efficiency and may even cause excavation interruption. Therefore, the replacement of the cutter becomes an inevitable task in the shield construction process.

[0003] However, in the existing technology, the replacement of shield machine cutters is mostly done manually. The disc cutters are transported by on-site electric hoists and installed manually. This process is usually time-consuming and affects the excavation efficiency. In addition, the traditional way of replacing cutters often has certain safety hazards. Operators need to enter the front cutterhead area of ​​the shield machine to work, which is easily exposed to a high-risk working environment, resulting in poor actual use of existing disc cutter replacement equipment. Summary of the invention

[0004] The purpose of the present invention is to provide a shield machine quick cutter changing device and a method of use that can conveniently replace disc cutters at different positions, shorten the actual replacement time, and improve the safety and efficiency of actual operations.

[0005] The technical solution adopted by the present invention is as follows: a shield machine quick tool changing device, comprising: a support mechanism, the support mechanism comprising a car body, a support frame, a rotating frame and a rotating component, the support frame is rotatably connected to the top of the car body, a plurality of support wheels are rotatably connected at equal distances relative to the inner surface wall on both sides of the support frame, the rotating frame is clamped between the relative outer surfaces of the plurality of support wheels, an adjusting threaded rod is rotatably connected between the relative inner surface walls on both sides of the rotating frame, a slide groove is provided on the top of the car body, a carrier is slidably inserted in the slide groove, and the rotating component is arranged on the car body and the support frame; and

[0006] The conveying mechanism comprises a sliding frame, two rotating drums, two extending frames and a limiting component, the sliding frame is slidably sleeved on the outer surface of the rotating frame, the sliding frame and the adjusting threaded rod are threadedly connected, the two rotating drums are rotatably connected to the outer surfaces on both sides of the sliding frame, the two extending frames are respectively fixedly connected to the outer surfaces of one side of the corresponding rotating drums, a group of two-way threaded tubes are rotatably connected to the top of each extending frame, and each group of two-way threaded tubes is provided with two groups of movable threaded rods are threadedly connected inside each group of two-way threaded tubes, and a resist frame is fixedly connected between one end of each group of movable threaded rods, and a pneumatic screwdriver is slidably inserted inside each resist frame, and the limiting component is arranged on the resist frame.

[0007] Wherein, the bottom end of the support frame extends to the bottom of the vehicle body, and a cylinder is fixedly connected to the bottom of the vehicle body.

[0008] Wherein, the rotating component includes an adjusting ring gear, an adjusting gear, a first adjusting motor, a rotating ring gear and a rotating rack, the adjusting ring gear is sleeved on the outer surface of the rotating frame, the adjusting gear is rotatably connected to the inner surface wall of one side of the supporting frame, the adjusting gear and the adjusting ring gear are meshed, the first adjusting motor is fixedly connected to the outer surface of one side of the supporting frame, the output end of the first adjusting motor is fixed to the outer surface of one side of the adjusting gear, the rotating ring gear is sleeved on the outer surface of the supporting frame, the rotating rack is fixedly connected to the output end of the cylinder, and the rotating rack and the rotating ring gear are meshed.

[0009] Among them, the outer surface of the adjusting threaded rod is sleeved with an adjusting bevel gear, the inner surface wall of one side of the rotating frame is rotatably connected with an adjusting shaft, the outer surface of the adjusting shaft is also sleeved with an adjusting bevel gear, the two adjusting bevel gears are meshed, and the outer surface of the adjusting shaft is sleeved with an adjusting worm gear.

[0010] Wherein, a second regulating motor is fixedly connected to the inner surface wall on the other side of the rotating frame, and an adjusting worm is sleeved on the output end of the second regulating motor, and the adjusting worm is meshed with the adjusting worm wheel.

[0011] Among them, two first steering gears are rotatably connected between the inner surface walls on both sides of the sliding frame, and the two first steering gears are meshed. One end of each rotating cylinder is fixedly connected to a second steering gear, and each second steering gear is meshed with the corresponding first steering gear.

[0012] Among them, a steering worm wheel is fixedly connected to the outer surface of one side of the first steering gear, a steering worm is rotatably connected to the outer surface of one side of the sliding frame, the steering worm and the steering worm wheel are meshed, a steering motor is fixedly connected to the outer surface of one side of the sliding frame, and the output end of the steering motor is fixedly connected to one end of the steering worm.

[0013] Among them, there are four groups of limiting components in total, and each group of limiting components includes a push rod and a support spring. The push rod slides through the inner wall of one side of the corresponding push frame, and the support spring is slidably sleeved on the outer surface of the push rod.

[0014] Among them, each of the rotating drums is fixedly connected to a limit motor, and the output end of each of the limit motors is sleeved with a first bevel gear, the top of each of the rotating drums is rotatably connected to a first linkage gear and a second linkage gear, each of the first linkage gears is meshed with a corresponding second linkage gear, and the bottom of each of the first linkage gears extends to the inside of the corresponding rotating drum, one end of each of the first linkage gears is fixedly connected to a second bevel gear, and each of the second bevel gears is meshed with a corresponding first bevel gear, the outer surface of each of the two-way threaded tubes is sleeved with a rotating gear, and each of the rotating gears is meshed with a corresponding second linkage gear, and each of the extension frames is rotatably connected to a plurality of side wheels and a plurality of top wheels at equal distances relative to the inner wall on both sides.

[0015] A method for using a quick tool changing device for a shield machine comprises the following steps:

[0016] S1, quick replacement: the replacement hob body is placed on an extension frame close to the carrier, and then the other extension frame is moved close to the side of the hob body to be replaced by moving the vehicle body, and then the first adjustment motor is started by control, so that the first adjustment motor cooperates with the adjustment gear to drive the adjustment ring gear to rotate, and then the adjustment ring gear can drive the rotating frame to rotate under the support of the support wheel, and at the same time, the second adjustment motor is started by control, so that the second adjustment motor cooperates with the adjustment worm, the adjustment worm wheel and the adjustment bevel gear to drive the adjustment threaded rod to rotate, so that the rotating adjustment threaded rod can move the adjustment slide frame position along the internal direction of the rotating frame The rotating frame and the rotating adjusting threaded rod can move the adjusting extension frame close to the hob body to be replaced, and at this time, the steering motor is controlled to start, so that the steering motor cooperates with the steering worm and the steering worm wheel to drive the corresponding first steering gear to rotate, and then the two first steering gears can drive the two second steering gears to rotate in the opposite direction, and then when the cylinder drives the rotating gear ring to rotate one circle through the rotating rack, the extension frames on both sides can maintain the same use angle, and then the use position of the rotating adjusting threaded rod and the moving vehicle body can be controlled to quickly replace the hob body to be replaced and the replacement hob body;

[0017] S2. Quick construction: When the extension frame completes the clamping of the hob body to be replaced, the limit motor is controlled to start, so that the limit motor can cooperate with the first bevel gear, the second bevel gear, the first connecting gear, the second connecting gear and the rotating gear to drive the two-way threaded tube to rotate, so that the corresponding two abutment frames are moved closer or farther away from each other, so that the pneumatic screwdriver can be aligned with the screws that fasten the hob body to be replaced, so that the hob body can be quickly and conveniently tightened and released, and then the hob body can be quickly replaced. At the same time, after the replacement of the hob body is completed, the replaced hob body can be vertically inserted on the top of the carrier with the support of the rotating frame, the sliding frame and the extension frame, so as to facilitate the temporary storage and replacement of the old and new hob bodies.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0019] (1) In the present invention, when in use, the replacement hob body is placed on an extension frame close to the carrier, and then the other extension frame can be moved close to one side of the hob body to be replaced by moving the vehicle body, and then the first adjustment motor is controlled to start, so that the first adjustment motor cooperates with the adjustment gear to drive the adjustment ring gear to rotate, and then the adjustment ring gear can drive the rotating frame to rotate under the support of the support wheel, and at the same time, the second adjustment motor is controlled to start, so that the second adjustment motor cooperates with the adjustment worm, the adjustment worm wheel and the adjustment bevel gear to drive the adjustment threaded rod to rotate, and then the rotating adjustment threaded rod can move the adjustment slide frame position along the internal direction of the rotating frame, and then the rotating rotating frame and The rotating adjustment threaded rod can move the adjustment extension frame close to clamp the hob body to be replaced. At this time, by controlling the start of the steering motor, the steering motor cooperates with the steering worm and the steering worm wheel to drive the corresponding first steering gear to rotate, and then the two first steering gears can drive the two second steering gears to rotate in the opposite direction. Then, when the cylinder drives the rotating gear ring to rotate one circle through the rotating rack, the extension frames on both sides can maintain the same use angle, and then by controlling the rotating adjustment threaded rod and the use position of the moving body, the hob body to be replaced and the replacement hob body can be quickly replaced, so that the equipment can efficiently replace the hob body, thereby improving the overall construction efficiency.

[0020] (2) In the present invention, when in use, when the extension frame completes the clamping of the hob body to be replaced, the limit motor is controlled to start, so that the limit motor can cooperate with the first bevel gear, the second bevel gear, the first connecting gear, the second connecting gear and the rotating gear to drive the two-way threaded tube to rotate, so that the corresponding two abutment frames are moved closer to or farther away from each other, so that the pneumatic screwdriver can be aligned with the screws that fasten the hob body to be replaced, so that the hob body can be fastened and released quickly and conveniently, and then the hob body can be quickly replaced. At the same time, after the replacement of the hob body is completed, the replaced hob body can be vertically inserted on the top of the carrier with the support of the rotating frame, the sliding frame and the extension frame, so as to facilitate the temporary storage and replacement of the new and old hob bodies, so that the equipment can efficiently realize its functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a first perspective stereogram of the present invention;

[0022] Figure 2 It is a second viewing angle stereogram of the present invention;

[0023] Figure 3 It is a cutaway stereogram of the present invention from a first viewing angle;

[0024] Figure 4It is a cutaway perspective view of the support mechanism of the present invention;

[0025] Figure 5 For the present invention Figure 4 Enlarged view of part A;

[0026] Figure 6 It is a cross-sectional and expanded stereoscopic view of the conveying mechanism of the present invention;

[0027] Figure 7 For the present invention Figure 6 Enlarged view of part B;

[0028] Figure 8 For the present invention Figure 6 Enlarged view of part C in the middle;

[0029] Fig. 9 For the present invention Figure 6 Enlarged view of part D in the middle.

[0030] Markings in the figure: 1. Support mechanism; 101. Car body; 102. Cylinder; 103. Rotating rack; 104. Support frame; 105. Rotating gear ring; 106. Support wheel; 107. Rotating frame; 108. Adjusting gear ring; 109. Adjusting threaded rod; 110. Second adjusting motor; 111. Adjusting worm; 112. Adjusting gear; 113. First adjusting motor; 114. Carrier; 2. Conveying mechanism; 201. Sliding frame; 202. Rotating drum; 203 , second steering gear; 204, first steering gear; 205, steering worm; 206, steering motor; 207, limit motor; 208, first linkage gear; 209, second linkage gear; 210, extension frame; 211, two-way threaded tube; 212, rotating gear; 213, moving threaded rod; 214, support frame; 215, support rod; 216, support spring; 217, pneumatic screwdriver; 218, side wheel; 219, top wheel; 3, hob body. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] Example 1, please refer to Figure 1-Figure 3 A quick tool changing device for a shield machine is composed of a supporting mechanism 1 and a conveying mechanism 2.

[0033] The details are as follows:

[0034] See also Figure 4 and Figure 5The support mechanism 1 includes a vehicle body 101, a support frame 104, a rotating frame 107 and a rotating component. The support frame 104 is rotatably connected to the top of the vehicle body 101. A plurality of support wheels 106 are rotatably connected at equal distances on both sides of the support frame 104 relative to the inner surface wall. The rotating frame 107 is clamped between the relative outer surfaces of the plurality of support wheels 106. An adjusting threaded rod 109 is rotatably connected between the relative inner surface walls on both sides of the rotating frame 107. A slide groove is provided on the top of the vehicle body 101, and a carrier 114 is slidably inserted in the slide groove. The rotating component is arranged on the vehicle body 101 and the support frame 104. The bottom end of the support frame 104 extends to the bottom of the vehicle body 101. The bottom of the vehicle body 101 is fixedly connected to the cylinder 102. The rotating component includes an adjusting gear ring 108, an adjusting gear 112, and a first adjusting motor 113, rotating ring gear 105 and rotating rack 103, adjusting ring gear 108 is sleeved on the outer surface of rotating frame 107, adjusting gear 112 is rotatably connected to the inner surface wall of one side of supporting frame 104, adjusting gear 112 and adjusting ring gear 108 are meshed, the first adjusting motor 113 is fixedly connected to the outer surface of one side of supporting frame 104, the output end of the first adjusting motor 113 is fixed to the outer surface of one side of adjusting gear 112, the rotating ring gear 105 is sleeved on the outer surface of supporting frame 104, the rotating rack 103 is fixedly connected to the output end of cylinder 102, the rotating rack 103 and the rotating ring gear 105 are meshed, the outer surface of adjusting threaded rod 109 is sleeved with adjusting bevel gear, the inner surface wall of one side of rotating frame 107 is rotatably connected with adjusting shaft, the outer surface of adjusting shaft is also sleeved with adjusting Bevel gear, two adjusting bevel gears are meshed, an adjusting worm wheel is sleeved on the outer surface of the adjusting shaft, a second adjusting motor 110 is fixedly connected to the inner surface wall on the other side of the rotating frame 107, an adjusting worm 111 is sleeved on the output end of the second adjusting motor 110, the adjusting worm 111 and the adjusting worm wheel are meshed, the replacement hob body 3 is placed on the extension frame 210 close to the carrier 114, and then the other extension frame 210 can be moved close to the side of the hob body 3 to be replaced by moving the vehicle body 101, and then the first adjusting motor 113 is started by controlling, so that the first adjusting motor 113 cooperates with the adjusting gear 112 to drive the adjusting gear ring 108 to rotate, and then the adjusting gear ring 108 can drive the rotating frame 107 to rotate under the support of the supporting wheel 106, and at the same time, the control is started The second adjusting motor 110 is driven, so that the second adjusting motor 110 cooperates with the adjusting worm 111, the adjusting worm wheel and the adjusting bevel gear to drive the adjusting threaded rod 109 to rotate, so that the rotating adjusting threaded rod 109 can move the adjusting slide frame 201 position along the inner direction of the rotating frame 107, and then the rotating rotating frame 107 and the rotating adjusting threaded rod 109 can move the adjusting extension frame 210 close to clamp the hob body 3 to be replaced. When the cylinder 102 drives the rotating gear ring 105 to rotate one circle through the rotating rack 103, the extension frames 210 on both sides can maintain the same use angle, and then by controlling the use position of the rotating adjusting threaded rod 109 and the moving vehicle body 101, the replacement of the hob body 3 to be replaced and the replacement hob body 3 can be quickly performed;

[0035] See also Figure 6-Figure 9The conveying mechanism 2 includes a sliding frame 201, two rotating drums 202, two extension frames 210 and a limiting component. The sliding frame 201 is slidably sleeved on the outer surface of the rotating frame 107. The sliding frame 201 is threadedly connected to the adjusting threaded rod 109. The two rotating drums 202 are rotatably connected to the outer surfaces on both sides of the sliding frame 201. The two extension frames 210 are respectively fixedly connected to the outer surfaces of one side of the corresponding rotating drum 202. A group of bidirectional threaded tubes 211 are rotatably connected to the top of each extension frame 210. Each group of bidirectional threaded tubes 211 is provided with two in total. Two groups of moving threaded rods 213 are threadedly connected inside each group of bidirectional threaded tubes 211. A resist frame 214 is fixedly connected between one end of each group of moving threaded rods 213. Each resist frame 214 has a sliding inner surface. A pneumatic screwdriver 217 is inserted, and a limiting component is arranged on the abutment frame 214. Two first steering gears 204 are rotatably connected between the inner surface walls on both sides of the sliding frame 201. The two first steering gears 204 are meshed. One end of each rotating cylinder 202 is fixedly connected to a second steering gear 203. Each second steering gear 203 is meshed with the corresponding first steering gear 204. A steering worm wheel is fixedly connected to the outer surface of one side of one first steering gear 204. A steering worm 205 is rotatably connected to the outer surface of one side of the sliding frame 201. The steering worm 205 is meshed with the steering worm wheel. A steering motor 206 is fixedly connected to the outer surface of one side of the sliding frame 201. The output end of the steering motor 206 is fixedly connected to one end of the steering worm 205. There are four groups of limiting components, each group of limiting components includes a push rod 215 and a support spring 216, the push rod 215 slides through the inner wall of the corresponding push frame 214, and the support spring 216 is slidably sleeved on the outer surface of the push rod 215, each rotating drum 202 is fixedly connected to the limiting motor 207, and the output end of each limiting motor 207 is sleeved with a first bevel gear, and the top of each rotating drum 202 is rotatably connected to the first connecting gear 208 and the second connecting gear 209, each first connecting gear 208 is meshed with the corresponding second connecting gear 209, and the bottom of each first connecting gear 208 extends to the inside of the corresponding rotating drum 202, and one end of each first connecting gear 208 is fixedly connected to the second bevel gear Wheel, each second bevel gear is meshed with the corresponding first bevel gear, each bidirectional threaded tube 211 is sleeved with a rotating gear 212 on the outer surface, each rotating gear 212 is meshed with the corresponding second linkage gear 209, and each extension frame 210 is equidistantly connected to the inner wall on both sides thereof and is rotatably connected with a plurality of side wheels 218 and a plurality of top wheels 219. By controlling and starting the steering motor 206, the steering motor 206 cooperates with the steering worm 205 and the steering worm wheel to drive the corresponding first steering gear 204 to rotate, and then the two first steering gears 204 can drive the two second steering gears 203 to rotate in the opposite direction. When the extension frame 210 completes the clamping process of the hob body 3 to be replaced, by controlling and starting the limit motor 207,The limit motor 207 can cooperate with the first bevel gear, the second bevel gear, the first linkage gear 208, the second linkage gear 209 and the rotating gear 212 to drive the bidirectional threaded tube 211 to rotate, so that the corresponding two abutment frames 214 are moved closer or farther away from each other, so that the pneumatic screwdriver 217 can align with the screws fastened by the hob body 3 to be replaced, so that the hob body 3 can be fastened and released quickly and conveniently, and then the hob body 3 can be quickly replaced. At the same time, after the replacement of the hob body 3 is completed, the replaced hob body 3 can be vertically inserted on the top of the carrier 114 under the support of the rotating frame 107, the sliding frame 201 and the extension frame 210, so as to facilitate the temporary storage and replacement of the new and old hob bodies 3.

[0036] The following is a detailed description of a method for using a quick tool changing device for a shield machine provided by an embodiment of the present invention. The method for using the device comprises the following steps:

[0037] Step 1, quick replacement: place the replaced hob body 3 on the extension frame 210 close to the carrier 114, and then move the vehicle body 101 to move another extension frame 210 close to the side of the hob body 3 to be replaced, and then control and start the first adjustment motor 113, so that the first adjustment motor 113 cooperates with the adjustment gear 112 to drive the adjustment ring gear 108 to rotate, and then the adjustment ring gear 108 can drive the rotating frame 107 to rotate under the support of the support wheel 106, and at the same time control and start the second adjustment motor 110, so that the second adjustment motor 110 cooperates with the adjustment worm 111, the adjustment worm wheel and the adjustment bevel gear to drive the adjustment threaded rod 109 to rotate, and then the rotating adjustment threaded rod 109 can move the adjustment slide frame 201 position along the internal direction of the rotating frame 107, and then the rotating The frame 107 and the rotating adjustment threaded rod 109 can move the adjustment extension frame 210 close to clamp the hob cutter body 3 to be replaced. At this time, by controlling the start of the steering motor 206, the steering motor 206 cooperates with the steering worm 205 and the steering worm wheel to drive the corresponding first steering gear 204 to rotate, so that the two first steering gears 204 can drive the two second steering gears 203 to rotate in the opposite direction. Then, when the cylinder 102 drives the rotating gear ring 105 to rotate one circle through the rotating rack 103, the extension frames 210 on both sides can maintain the same use angle, and then by controlling the rotation of the adjustment threaded rod 109 and the use position of the mobile body 101, the replacement of the hob cutter body 3 to be replaced and the replacement hob cutter body 3 can be quickly performed, so that the equipment can efficiently replace the hob cutter body 3, thereby improving the overall construction efficiency;

[0038] Step 2, fast construction: when the extension frame 210 completes the clamping of the hob cutter body 3 to be replaced, by controlling the start limit motor 207, the limit motor 207 can cooperate with the first bevel gear, the second bevel gear, the first connecting gear 208, the second connecting gear 209 and the rotating gear 212 to drive the bidirectional threaded tube 211 to rotate, so that the corresponding two abutment frames 214 are close to or away from each other, so that the pneumatic screwdriver 217 can align the screws that fasten the hob cutter body 3 to be replaced, so that the hob cutter body 3 can be fastened and released quickly and conveniently, and then the hob cutter body 3 can be quickly replaced. At the same time, the replaced hob cutter body 3 to be replaced can be vertically inserted on the top of the carrier 114 under the support of the rotating frame 107, the sliding frame 201 and the extension frame 210 after the replacement of the hob cutter body 3 is completed, so as to facilitate the temporary storage and replacement of the new and old hob cutter bodies 3, so that the equipment can efficiently realize its due functions.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A quick tool changing device for a shield machine, characterized in that: include: A support mechanism (1), the support mechanism (1) comprising a vehicle body (101), a support frame (104), a rotating frame (107) and a rotating component, the support frame (104) is rotatably connected to the top of the vehicle body (101), a plurality of support wheels (106) are rotatably connected at equal distances on both sides of the support frame (104) relative to the inner surface wall, the rotating frame (107) is clamped between the relative outer surfaces of the plurality of support wheels (106), an adjusting threaded rod (109) is rotatably connected between the relative inner surface walls on both sides of the rotating frame (107), a sliding groove is provided on the top of the vehicle body (101), a carrier (114) is slidably inserted in the sliding groove, and the rotating component is arranged on the vehicle body (101) and the support frame (104); and The conveying mechanism (2) comprises a sliding frame (201), two rotating drums (202), two extension frames (210) and a limiting component. The sliding frame (201) is slidably sleeved on the outer surface of the rotating frame (107). The sliding frame (201) and the adjusting threaded rod (109) are threadedly connected. The two rotating drums (202) are rotatably connected to the outer surfaces of both sides of the sliding frame (201). The two extension frames (210) are respectively fixedly connected to the outer surfaces of one side of the corresponding rotating drum (202). A group of bidirectional threaded tubes (211) are rotatably connected to the top of each extension frame (210), and each group of bidirectional threaded tubes (211) is provided with two in total. Two groups of movable threaded rods (213) are threadedly connected inside each group of bidirectional threaded tubes (211), and a support frame (214) is fixedly connected between one end of each group of movable threaded rods (213). A pneumatic screwdriver (217) is slidably inserted inside each of the support frames (214), and the limiting component is provided on the support frame (214).

2. A shield machine quick tool changing device as claimed in claim 1, characterized in that: The bottom end of the support frame (104) extends to below the vehicle body (101), and the bottom of the vehicle body (101) is fixedly connected to a cylinder (102).

3. A shield machine quick tool changing device as claimed in claim 2, characterized in that: The rotating component comprises an adjusting ring gear (108), an adjusting gear (112), a first adjusting motor (113), a rotating ring gear (105) and a rotating rack (103); the adjusting ring gear (108) is sleeved on the outer surface of the rotating frame (107); the adjusting gear (112) is rotatably connected to the inner surface wall of one side of the supporting frame (104); the adjusting gear (112) and the adjusting ring gear (108) are meshed; the first adjusting motor (113) is fixedly connected to the outer surface of one side of the supporting frame (104); the output end of the first adjusting motor (113) is fixed to the outer surface of one side of the adjusting gear (112); the rotating ring gear (105) is sleeved on the outer surface of the supporting frame (104); the rotating rack (103) is fixedly connected to the output end of the cylinder (102); and the rotating rack (103) and the rotating ring gear (105) are meshed.

4. A shield machine quick tool changing device as claimed in claim 3, characterized in that: The outer surface of the adjusting threaded rod (109) is sleeved with an adjusting bevel gear, and the inner surface wall of one side of the rotating frame (107) is rotatably connected with an adjusting shaft, and the outer surface of the adjusting shaft is also sleeved with an adjusting bevel gear, the two adjusting bevel gears are meshed, and the outer surface of the adjusting shaft is sleeved with an adjusting worm gear.

5. A shield machine quick tool changing device as claimed in claim 4, characterized in that: A second regulating motor (110) is fixedly connected to the inner surface wall of the other side of the rotating frame (107); an regulating worm (111) is sleeved on the output end of the second regulating motor (110); and the regulating worm (111) is meshed with the regulating worm wheel.

6. A shield machine quick tool changing device as claimed in claim 5, characterized in that: Two first steering gears (204) are rotatably connected between the inner surface walls on both sides of the sliding frame (201), and the two first steering gears (204) are meshed. One end of each rotating cylinder (202) is fixedly connected to a second steering gear (203), and each second steering gear (203) is meshed with a corresponding first steering gear (204).

7. A shield machine quick tool changing device as claimed in claim 6, characterized in that: A steering worm wheel is fixedly connected to the outer surface of one side of the first steering gear (204); a steering worm (205) is rotatably connected to the outer surface of one side of the slide frame (201); the steering worm (205) and the steering worm wheel are meshed; a steering motor (206) is fixedly connected to the outer surface of one side of the slide frame (201); and an output end of the steering motor (206) is fixedly connected to one end of the steering worm (205).

8. A shield machine quick tool changing device as claimed in claim 7, characterized in that: There are four groups of the limiting components in total, and each group of the limiting components comprises a push rod (215) and a support spring (216). The push rod (215) slides through the inner surface wall of one side of the corresponding push frame (214), and the support spring (216) slides on the outer surface of the push rod (215).

9. A shield machine quick tool changing device as claimed in claim 8, characterized in that: Each of the rotating drums (202) is fixedly connected to a limit motor (207) inside, and the output end of each of the limit motors (207) is sleeved with a first bevel gear. The top of each of the rotating drums (202) is rotatably connected to a first linkage gear (208) and a second linkage gear (209), and each of the first linkage gears (208) is meshed with the corresponding second linkage gear (209). The bottom of each of the first linkage gears (208) extends into the corresponding rotating drum (202). One end of each of the first linkage gears (208) is fixedly connected to a second bevel gear, and each of the second bevel gears is meshed with the corresponding first bevel gear. The outer surface of each of the bidirectional threaded tubes (211) is sleeved with a rotating gear (212), and each of the rotating gears (212) is meshed with the corresponding second linkage gear (209). Both sides of each of the extension frames (210) are rotatably connected to a plurality of side wheels (218) and a plurality of top wheels (219) at equal distances relative to the inner surface wall.

10. A method for using a quick tool changing device for a shield machine, characterized in that: The fast tool changing device for a shield machine as claimed in claim 9 comprises the following steps: S1. Quick replacement: The replaced hob body (3) is placed on an extension frame (210) close to the carrier (114), and then the other extension frame (210) is moved close to the side of the hob body (3) to be replaced by moving the vehicle body (101), and then the first adjustment motor (113) is controlled to be started, so that the first adjustment motor (113) cooperates with the adjustment gear (112) to drive the adjustment ring gear (108) to rotate, and then the adjustment ring gear (108) can drive the rotating frame (107) to rotate under the support of the support wheel (106), and at the same time, the second adjustment motor (110) is controlled to be started, so that the second adjustment motor (110) cooperates with the adjustment worm (111), the adjustment worm wheel and the adjustment bevel gear to drive the adjustment threaded rod (109) to rotate, and then the rotating adjustment threaded rod (109) can move the adjustment slide frame along the inner direction of the rotating frame (107). (201) position, then the rotating rotating frame (107) and the rotating adjusting threaded rod (109) can move the adjusting extension frame (210) close to clamp the roller cutter body (3) to be replaced, at this time, by controlling the starting of the steering motor (206), the steering motor (206) cooperates with the steering worm (205) and the steering worm wheel to drive the corresponding first steering gear (204) to rotate, and then the two first steering gears (204) can drive the two second steering gears (203) to rotate in the opposite direction, and then when the cylinder (102) drives the rotating gear ring (105) to rotate one circle through the rotating rack (103), the extension frames (210) on both sides can maintain the same use angle, and then by controlling the use position of the rotating adjusting threaded rod (109) and the moving vehicle body (101), the roller cutter body (3) to be replaced and the replacement roller cutter body (3) can be quickly replaced; S2, fast construction: when the extension frame (210) completes the process of clamping the hob body (3) to be replaced, the limit motor (207) is controlled to start, so that the limit motor (207) can cooperate with the first bevel gear, the second bevel gear, the first linkage gear (208), the second linkage gear (209) and the rotating gear (212) to drive the bidirectional threaded tube (211) to rotate, thereby making the corresponding two abutment frames (214) approach or move away from each other, thereby making the pneumatic screwdriver (21 7) The screws fastening the hob cutter body (3) to be replaced can be aligned, so that the hob cutter body (3) can be fastened and released quickly and conveniently, and then the hob cutter body (3) can be quickly replaced. At the same time, after the replacement of the hob cutter body (3) is completed, the replaced hob cutter body (3) can be vertically inserted on the top of the carrier (114) with the support of the rotating frame (107), the sliding frame (201) and the extension frame (210), so as to facilitate the temporary storage and replacement of the new and old hob cutter bodies (3).

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