A shield machine cutter hoisting structure

Abstract

The utility model relates to a shield machine auxiliary technical field especially relates to a shield machine cutter hoisting structure, including bottom plate, the bottom plate bottom is equipped with two groups of universal wheel, the bottom plate top is equipped with hoisting subassembly, be equipped with clamping subassembly on the hoisting subassembly, the bottom plate top is equipped with counterweight subassembly, through the L type arc clamping block to cutter clamping, then through telescopic cylinder to drive movable frame to rotate around the lifting frame, lifting frame drives cutter to move downward, again through first drive mechanism to drive lifting frame to move downward, lifting frame drives cutter to drop to appropriate height, and then it is convenient to install cutter, need not manual handling, not only reduce the labor intensity of artificial, also save a large amount of manpower resource, improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tunnel boring machine auxiliary technology, and in particular to a tunnel boring machine cutter hoisting structure. Background Technology

[0002] A tunnel boring machine (TBM) is a type of tunnel excavation machine that uses the shield tunneling method. The shield tunneling method involves the TBM constructing and laying the tunnel "shield" (referring to the supporting segments) while excavating. The cutterheads on the TBM are wear parts. After a period of use, the cutterheads will experience severe wear and need to be replaced in order to keep the TBM in good working condition. The replacement of the cutterheads requires the use of a cutterhead hoisting structure.

[0003] Current tool lifting structures, during installation and use by users, still have the following shortcomings:

[0004] (1) When the tunnel boring machine is in use, the cutter will wear out. The traditional way is to replace the cutter by manually carrying it. However, the cutter of the tunnel boring machine is relatively heavy. Manually carrying it not only increases the labor intensity of the workers, but also wastes a lot of human resources and reduces work efficiency.

[0005] (2) Most of the existing hoisting structures use only specific sizes of cutting tools, which cannot meet the needs of different sizes of cutting tools, resulting in a small range of applications and low practicality of the hoisting structure. Utility Model Content

[0006] In order to overcome the defects of the prior art as mentioned above, the inventors of this utility model have conducted in-depth research and, after a great deal of creative work, have completed this utility model.

[0007] Specifically, the technical problem to be solved by this utility model is to provide a shield machine cutter hoisting structure to solve the problem that most shield machine cutters are replaced by manual handling. However, shield machine cutters are heavy, and manual handling not only increases the labor intensity of workers, but also wastes a lot of human resources and reduces work efficiency.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0009] A shield tunneling machine cutter hoisting structure includes a base plate, two sets of universal wheels at the bottom of the base plate, a hoisting assembly at the top of the base plate, a clamping assembly on the hoisting assembly, and a counterweight assembly at the top of the base plate.

[0010] The hoisting assembly includes a support frame, which is mounted on the top of the base plate. A lifting frame is slidably connected to the support frame. A connecting shaft is provided on the top of the lifting frame, and a movable frame is rotatably connected to the connecting shaft. A telescopic cylinder is provided between the lifting frame and the movable frame. The telescopic cylinder is hinged to the lifting frame and the movable frame. A first drive mechanism is provided on the lifting frame.

[0011] As an improved technical solution, the first driving mechanism includes a motor mounting plate, two motor mounting plates are disposed inside the base plate, a first motor is disposed on one side of the motor mounting plate, the output end of the first motor is connected to a first spur gear, and the first spur gear is disposed between the two motor mounting plates, a rotating shaft is disposed on the motor mounting plate, a second spur gear is disposed on the rotating shaft, the second spur gear meshes with the first spur gear, a first bevel gear is disposed at both ends of the rotating shaft, a first lead screw is symmetrically disposed inside the support frame, and the two first lead screws have the same thread direction, a second bevel gear is disposed at the bottom end of the first lead screw, the second bevel gear meshes with the first bevel gear, a lifting plate is threadedly connected to the first lead screw, and the lifting plate is fixedly connected to the lifting frame.

[0012] As an improved technical solution, the clamping assembly includes a clamping seat, a U-shaped connecting plate on the top of the clamping seat, the U-shaped connecting plate being hinged to the movable frame, through slots symmetrically opened at the bottom of the clamping seat, a sliding rod inside the through slot, a sliding plate slidably connected to the sliding rod, an L-shaped arc-shaped clamping block at the bottom end of the sliding plate, and a second driving mechanism on the top of the clamping seat.

[0013] As an improved technical solution, the second driving mechanism includes a cavity, which is opened inside the clamping seat. A second motor is provided on the top of the clamping seat. The output end of the second motor is connected to a third bevel gear. A fixed plate is symmetrically arranged inside the cavity. A second lead screw is rotatably connected to the fixed plate. A fourth bevel gear is provided at one end of the second lead screw. The fourth bevel gear meshes with the third bevel gear. The second lead screw is threadedly connected to the sliding plate.

[0014] As an improved technical solution, the counterweight assembly includes a first counterweight box, which is located on the top of the base plate. The top of the first counterweight box has a first water inlet channel. The top of the base plate has a second counterweight box, and the first counterweight box and the second counterweight box are located on opposite sides of the support frame. The top of the second counterweight box has a second water inlet channel.

[0015] As an improved technical solution, the following is provided: a water pump is provided on one side of the first counterweight box, and a connecting pipe is provided at the output end of the water pump, which is connected to one side of the second counterweight box; a water pump is provided on the other side of the second counterweight box, and a connecting pipe is provided at the output end of the water pump, which is connected to the other side of the first counterweight box.

[0016] After adopting the above technical solution, the beneficial effects of this utility model are:

[0017] 1. This utility model uses an L-shaped arc-shaped clamp to hold the cutting tool. Then, a telescopic cylinder drives the movable frame to rotate around the lifting frame. The lifting frame moves the cutting tool downward. Then, the first drive mechanism drives the lifting frame to move downward. The lifting frame lowers the cutting tool to a suitable height, which facilitates the installation of the cutting tool. There is no need for manual handling, which not only reduces the labor intensity of manual labor, but also saves a lot of human resources and improves work efficiency.

[0018] 2. In this utility model, the second motor drives the third bevel gear to rotate, and the third bevel gear drives the second lead screw to rotate through the fourth bevel gear. The two second lead screws drive the two sliding plates to move in opposite directions. The sliding plates drive the L-shaped arc-shaped clamping block to clamp the tools of different sizes, thereby meeting the needs of tools of different sizes. This makes the hoisting structure applicable to a wide range of applications and highly practical.

[0019] 3. In this utility model, the first and second counterweight boxes are used to counterweight the hoisting structure, preventing the hoisting structure from tipping over and making the hoisting structure more stable. At the same time, water pump one and water pump two are used to circulate the water in the first and second counterweight boxes for counterweighting, thereby avoiding the waste of water resources and making the counterweighting operation more convenient. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0021] Figure 1 This is a schematic diagram of the overall structure of a tunnel boring machine cutter hoisting structure according to the present invention.

[0022] Figure 2 This is a cross-sectional structural diagram of the hoisting component of a tunnel boring machine cutter hoisting structure according to the present invention.

[0023] Figure 3 This is a cross-sectional view of the clamping component of a shield machine cutter hoisting structure according to the present invention.

[0024] Figure 4 This is a schematic diagram of the counterweight component structure of a tunnel boring machine cutter hoisting structure according to the present invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Base plate; 2. Lifting assembly; 21. Support frame; 22. Lifting frame; 23. Connecting shaft; 24. Movable frame; 25. Telescopic cylinder; 261. Motor mounting plate; 262. First motor; 263. First spur gear; 264. Rotating shaft one; 265. Second spur gear; 266. First bevel gear; 267. First lead screw; 268. Second bevel gear; 269. Lifting plate; 3. Clamping assembly; 31. Clamping seat; 32. U-shaped connecting plate; 33. Through 34. Slide bar; 35. Sliding plate; 36. L-shaped arc-shaped clamping block; 371. Cavity; 372. Second motor; 373. Third bevel gear; 374. Fixing plate; 375. Second lead screw; 376. Fourth bevel gear; 4. Counterweight assembly; 41. First counterweight box; 42. First water inlet channel; 43. Second counterweight box; 44. Second water inlet channel; 45. Water pump one; 46. Connecting pipe one; 47. Water pump two; 48. Connecting pipe two; 5. Universal wheel. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0030] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0031] like Figure 1 and Figure 4 As shown in the figure, this embodiment provides a shield machine cutter hoisting structure, including a base plate 1, two sets of universal wheels 5 at the bottom of the base plate 1, a hoisting assembly 2 at the top of the base plate 1, a clamping assembly 3 on the hoisting assembly 2, and a counterweight assembly 4 at the top of the base plate 1.

[0032] The hoisting assembly 2 includes a support frame 21, which is located on the top of the base plate 1. A lifting frame 22 is slidably connected to the support frame 21. A connecting shaft 23 is provided on the top of the lifting frame 22, and a movable frame 24 is rotatably connected to the connecting shaft 23. A telescopic cylinder 25 is provided between the lifting frame 22 and the movable frame 24. The telescopic cylinder 25 is hinged to the lifting frame 22 and the movable frame 24. A first drive mechanism is provided on the lifting frame 22. The telescopic cylinder 25 drives the movable frame 24 to rotate around the lifting frame 22. The lifting frame 22 drives the cutter to move downward. The first drive mechanism then drives the lifting frame 22 to move downward. The lifting frame 22 lowers the cutter to a suitable height, which facilitates the installation of the cutter without manual handling, thus reducing the labor intensity of manual labor.

[0033] The first drive mechanism includes motor mounting plates 261, two of which are located inside the base plate 1. A first motor 262 is mounted on one side of each motor mounting plate 261. The output end of the first motor 262 is connected to a first spur gear 263, which is located between the two motor mounting plates 261. A rotating shaft 264 is mounted on each motor mounting plate 261, and a second spur gear 265 is mounted on the rotating shaft 264. The second spur gear 265 meshes with the first spur gear 263. First bevel gears 266 are mounted at both ends of the rotating shaft 264. First lead screws 267 are symmetrically arranged inside the support frame 21, and two first lead screws 267 are also provided. With the same thread direction, the bottom end of the first lead screw 267 is provided with a second bevel gear 268, which meshes with the first bevel gear 266. The first lead screw 267 is threadedly connected to a lifting plate 269, which is fixedly connected to the lifting frame 22. The first motor 262 drives the first spur gear 263 to rotate, and the first spur gear 263 drives the first shaft 264 to rotate through the second spur gear 265. The first shaft 264 drives the first lead screw 267 on the second bevel gear 268 to rotate through the first bevel gear 266. The first lead screw 267 drives the lifting frame 22 to move downward through the lifting plate 269, thus realizing the transmission of motion.

[0034] like Figure 1 and Figure 3 As shown, the clamping assembly 3 includes a clamping base 31. The top of the clamping base 31 is provided with a U-shaped connecting plate 32, which is hinged to the movable frame 24. The bottom of the clamping base 31 is symmetrically provided with through slots 33, and a slide rod 34 is provided inside the through slot 33. The slide rod 34 is slidably connected to a slide plate 35. The bottom end of the slide plate 35 is provided with an L-shaped arc-shaped clamping block 36. The top of the clamping base 31 is provided with a second driving mechanism. The second driving mechanism drives the two slide plates 35 to move towards each other. The slide plates 35 drive the L-shaped arc-shaped clamping block 36 to clamp tools of different sizes, thereby meeting the needs of tools of different sizes.

[0035] The second drive mechanism includes a cavity 371, which is located inside the clamping seat 31. A second motor 372 is mounted on the top of the clamping seat 31. The output end of the second motor 372 is connected to a third bevel gear 373. A fixed plate 374 is symmetrically arranged inside the cavity 371. A second lead screw 375 is rotatably connected to the fixed plate 374. A fourth bevel gear 376 is mounted on one end of the second lead screw 375. The fourth bevel gear 376 meshes with the third bevel gear 373. The second lead screw 375 is threadedly connected to a sliding plate 35. The second motor 372 drives the third bevel gear 373 to rotate. The third bevel gear 373 drives the second lead screw 375 to rotate through the fourth bevel gear 376. The two second lead screws 375 drive the two sliding plates 35 to move towards each other, thus realizing the transmission of motion.

[0036] like Figure 1 and Figure 4 As shown, the counterweight assembly 4 includes a first counterweight box 41, which is located on the top of the base plate 1. The top of the first counterweight box 41 is provided with a first water inlet channel 42. The top of the base plate 1 is provided with a second counterweight box 43. The first counterweight box 41 and the second counterweight box 43 are respectively located on both sides of the support frame 21. The top of the second counterweight box 43 is provided with a second water inlet channel 44. The first counterweight box 41 and the second counterweight box 43 are used to counterweight the hoisting structure to prevent the hoisting structure from tipping over and to make the hoisting structure more stable.

[0037] A water pump 45 is installed on one side of the first counterweight box 41. A connecting pipe 46 is installed at the output end of the water pump 45. The connecting pipe 46 is connected to one side of the second counterweight box 43. A water pump 47 is installed on the other side of the second counterweight box 43. A connecting pipe 48 is installed at the output end of the water pump 47. The connecting pipe 48 is connected to the other side of the first counterweight box 41. The water pump 45 and the water pump 47 circulate the water in the first counterweight box 41 and the second counterweight box 43 for counterweighting, thereby avoiding the waste of water resources.

[0038] In operation, the operator first starts the second motor 372, which drives the third bevel gear 373 to rotate. The third bevel gear 373, through the fourth bevel gear 376, drives the second lead screw 375 to rotate. The two second lead screws 375 respectively drive the two sliding plates 35 to move towards each other along the sliding rod 34. The sliding plates 35 drive the L-shaped arc-shaped clamping block 36 to clamp the tools of different sizes, thus meeting the needs of tools of different sizes. This makes the lifting structure applicable to a wide range of situations and highly practical. Next, the operator starts the first motor 262, which drives the first spur gear 263 to rotate. The first spur gear 263, through the second spur gear 265, drives the rotating shaft 264 to rotate. The rotating shaft 264, through the first bevel gear 266, drives the first lead screw 267 on the second bevel gear 268 to rotate. The first lead screw 267, through the lifting plate 269, drives the lifting frame 22 to move upward. The lifting frame 22, through the movable frame 24, drives the tool upward. When the tool's rising height is insufficient, the telescopic cylinder 25 is retracted. The telescopic cylinder 25 drives... The movable frame 24 rotates around the lifting frame 22, which drives the cutter upward, further increasing the height of the cutter. Then, the two sets of universal wheels 5 drive the hoisting structure to move to the appropriate position. Next, the extension cylinder 25 and the first motor 262 reverse, driving the cutter downward. The lifting frame 24 lowers the cutter to the appropriate height, making it easier to install the cutter without manual handling. This not only reduces the labor intensity of manual labor but also saves a lot of manpower and improves work efficiency. A certain amount of water is added to the first counterweight box 41 and the second counterweight box 43 through the first water inlet channel 42 and the second water inlet channel, respectively. By starting the first water pump 45, the first water pump 45 fills the second counterweight box 43 with water through the first connecting pipe 46, increasing the weight of the second counterweight box 43. By starting the second water pump 47, the second water pump 47 fills the first counterweight box 41 with water through the second connecting pipe 48, increasing the weight of the first counterweight box 41. Through cyclic counterweighting, not only is water waste avoided, but the counterweighting operation is also more convenient.

[0039] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A shield tunneling machine cutter hoisting structure, comprising a base plate (1), wherein the bottom of the base plate (1) is provided with two sets of universal wheels (5), characterized in that: The bottom plate (1) is provided with a hoisting assembly (2) at the top, the hoisting assembly (2) is provided with a clamping assembly (3), and the bottom plate (1) is provided with a counterweight assembly (4); The hoisting assembly (2) includes a support frame (21) which is located on the top of the base plate (1). The support frame (21) is slidably connected to a lifting frame (22). The top of the lifting frame (22) is provided with a connecting shaft (23). The connecting shaft (23) is rotatably connected to a movable frame (24). A telescopic cylinder (25) is provided between the lifting frame (22) and the movable frame (24). The telescopic cylinder (25) is hinged to the lifting frame (22) and the movable frame (24). The lifting frame (22) is provided with a first drive mechanism.

2. The shield tunneling machine cutter hoisting structure according to claim 1, characterized in that: The first driving mechanism includes a motor mounting plate (261), two of which are disposed inside the base plate (1). A first motor (262) is provided on one side of each motor mounting plate (261). The output end of the first motor (262) is connected to a first spur gear (263), and the first spur gear (263) is disposed between the two motor mounting plates (261). A rotating shaft (264) is provided on each motor mounting plate (261), and a second spur gear (265) is provided on the rotating shaft (264). The second spur gear (265) is connected to... The first spur gear (263) meshes with the first shaft (264), and the two ends of the shaft are respectively provided with first bevel gears (266). The support frame (21) is symmetrically provided with first lead screws (267), and the two first lead screws (267) have the same thread direction. The bottom end of the first lead screw (267) is provided with a second bevel gear (268), and the second bevel gear (268) meshes with the first bevel gear (266). The first lead screw (267) is threadedly connected to a lifting plate (269), and the lifting plate (269) is fixedly connected to the lifting frame (22).

3. The shield tunneling machine cutter hoisting structure according to claim 2, characterized in that: The clamping assembly (3) includes a clamping seat (31), the top of which is provided with a U-shaped connecting plate (32), the U-shaped connecting plate (32) is hinged to the movable frame (24), the bottom of the clamping seat (31) is symmetrically provided with through slots (33), the inside of the through slots (33) is provided with a slide rod (34), the slide rod (34) is slidably connected to a slide plate (35), the bottom end of the slide plate (35) is provided with an L-shaped arc-shaped clamping block (36), and the top of the clamping seat (31) is provided with a second driving mechanism.

4. The shield tunneling machine cutter hoisting structure according to claim 3, characterized in that: The second driving mechanism includes a cavity (371) which is opened inside the clamping seat (31). A second motor (372) is provided on the top of the clamping seat (31). The output end of the second motor (372) is connected to a third bevel gear (373). A fixing plate (374) is symmetrically arranged inside the cavity (371). A second lead screw (375) is rotatably connected to the fixing plate (374). A fourth bevel gear (376) is provided at one end of the second lead screw (375). The fourth bevel gear (376) meshes with the third bevel gear (373). The second lead screw (375) is threadedly connected to the sliding plate (35).

5. The shield tunneling machine cutter hoisting structure according to claim 4, characterized in that: The counterweight assembly (4) includes a first counterweight box (41), which is located on the top of the base plate (1). The top of the first counterweight box (41) is provided with a first water inlet channel (42). The top of the base plate (1) is provided with a second counterweight box (43). The first counterweight box (41) and the second counterweight box (43) are located on both sides of the support frame (21). The top of the second counterweight box (43) is provided with a second water inlet channel (44).

6. The shield tunneling machine cutter hoisting structure according to claim 5, characterized in that: A water pump (45) is provided on one side of the first counterweight box (41). A connecting pipe (46) is provided at the output end of the water pump (45). The connecting pipe (46) is connected to one side of the second counterweight box (43). A water pump (47) is provided on the other side of the second counterweight box (43). A connecting pipe (48) is provided at the output end of the water pump (47). The connecting pipe (48) is connected to the other side of the first counterweight box (41).

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