A shield posture mark alignment and correction device

Abstract

The utility model provides a kind of shield posture mark pair deviation rectification device, including multiple propelling units connected in the shield tail of shield machine, propelling unit includes: propelling oil cylinder, propelling unit further includes first connecting seat, second connecting seat, support, motor, transmission assembly, connecting piece, at least two screw rods and the screw nut corresponding to screw rod, first connecting seat is connected with the output end of propelling oil cylinder, second connecting seat is slidably connected with first connecting seat, support is arranged on second connecting seat, screw rod is symmetrically arranged on support and is rotatably connected with support, screw nut and screw rod form screw nut pair, screw nut is fixedly connected with connecting piece, connecting piece is fixedly connected with first connecting seat, motor is installed on second connecting seat, the output end of motor is connected with the input end of transmission assembly, and the output end of transmission assembly drives screw rod to rotate synchronously respectively.The utility model can solve the defect that threaded connection structure is easily damaged, leading to low service life of shield posture mark pair deviation rectification device.

Description

Technical Field

[0001] This utility model relates to the field of shield tunnel attitude correction technology, and in particular to a shield tunnel attitude alignment and correction device. Background Technology

[0002] Currently, the tunnel boring machine (TBM) is propelled by rear-mounted hydraulic cylinders. These cylinders push the tunnel segments behind the machine, providing a counterforce to propel the TBM forward. During tunneling, the TBM is equipped with laser measurement systems and sensors that measure displacement data to determine if any deviation has occurred.

[0003] Existing technologies disclose shield attitude alignment and correction devices installed between several propulsion cylinders and tunnel segments, evenly distributed around the central axis of the shield body. The distance between the propulsion cylinders and tunnel segments is adjusted by extending and retracting these devices, thereby adjusting the shield machine's attitude to achieve the purpose of correction. Specifically, existing technologies use a threaded connection structure to achieve the extension and retraction of the shield attitude alignment and correction device. However, such devices typically use a single screw for drive, which must withstand the thrust of the shield machine during excavation. The high pressure on the screw can easily lead to damage to the threaded connection structure.

[0004] Therefore, it is necessary to develop a shield tunnel attitude alignment correction device to solve the problem that the threaded connection structure is easily damaged, resulting in a short service life of the shield tunnel attitude alignment correction device. Utility Model Content

[0005] The purpose of this invention is to provide a shield tunnel attitude alignment correction device to solve the problem that the existing shield tunnel attitude alignment correction device has a short service life due to the easy damage of the threaded connection structure.

[0006] To solve the above-mentioned technical problems, this utility model provides a shield tunneling attitude alignment and correction device, including multiple propulsion units connected to the tail of the shield machine. Each propulsion unit includes a propulsion cylinder, a first connecting seat, a second connecting seat, a support, a motor, a transmission assembly, a connector, at least two lead screws, and threaded sleeves corresponding to each lead screw. The first connecting seat is connected to the output end of the propulsion cylinder, the second connecting seat is slidably connected to the first connecting seat, the support is disposed on the second connecting seat, the lead screws are symmetrically disposed on the support and rotatably connected to the support, the threaded sleeves form a lead screw and nut pair with the lead screws, the threaded sleeves are fixedly connected to the connector, the connector is fixedly connected to the first connecting seat, the motor is mounted on the second connecting seat, the output end of the motor is connected to the input end of the transmission assembly, and the output end of the transmission assembly drives the lead screws to rotate synchronously.

[0007] Optionally, the number of lead screws is three, and the three lead screws are arranged symmetrically at the center.

[0008] Optionally, the transmission assembly includes a first gear connected to the output end of the motor, and a plurality of second gears meshing with the first gear for driving the lead screw to rotate, wherein the number of the second gears corresponds one-to-one with the number of the lead screw.

[0009] Optionally, a through slot is provided at the position corresponding to the second gear on the support, and multiple second gears pass through the through slot to mesh with the first gear.

[0010] Optionally, a connector is connected to the middle of the threaded sleeve, and a structural hole is provided on the support, through which the threaded sleeve passes and connects to the connector.

[0011] Optionally, the outer surface of the second connector is slidably connected to the inner surface of the first connector.

[0012] Optionally, a plurality of first fixed seats are fixedly connected to the support; a second fixed seat is bolted to the side of the first fixed seat; the lead screw is rotatably mounted on the first fixed seat and the second fixed seat.

[0013] Optionally, a plurality of third fixing seats are fixedly connected to the outer surface of the connector; a fourth fixing seat is bolted to the side of the third fixing seat; the threaded sleeve is located between the third fixing seat and the fourth fixing seat, and is fixedly connected to the third fixing seat and the fourth fixing seat.

[0014] Optionally, the first connecting seat has multiple inspection slots; each of the multiple inspection slots is bolted with a cover plate.

[0015] Optionally, the first connecting seat has a plurality of guide cylinders fixedly connected inside, and the second connecting seat has a guide rod slidably connected to the guide cylinders.

[0016] The shield tunneling attitude alignment and correction device provided by this utility model has the following beneficial effects: By setting at least two lead screws, supports, connectors, threaded sleeves, a first connecting seat, and a second connecting seat, the rotation of at least two lead screws works in conjunction with multiple threaded sleeves to adjust the length of the first and second connecting seats. The use of multiple lead screws in cooperation reduces the force on a single lead screw, thus reducing the likelihood of damage. Furthermore, if the thread of a single lead screw is damaged, multiple other lead screws can compensate, eliminating the need for immediate machine shutdown and replacement. The cooperation between the lead screws and threaded sleeves also allows for higher adjustment precision, facilitating accurate adjustments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the installation of the shield attitude alignment and correction device at the tail of the shield machine in an embodiment of this utility model. Figure 2 This is a schematic diagram of the shield tunnel attitude indicator correction device in an embodiment of this utility model; Figure 3 This is an exploded structural diagram of the shield tunnel attitude indicator correction device in an embodiment of this utility model; Figure 4 This is a partial cross-sectional view of the shield tunnel attitude indicator correction device in an embodiment of this utility model; Figure 5 This is a partial exploded structural diagram of the shield attitude indicator correction device in an embodiment of this utility model.

[0018] Explanation of reference numerals in the attached figures: 110-Propulsion cylinder; 120-First connecting seat; 121-Guide cylinder; 130-Second connecting seat; 131-Guide rod; 140-Support; 141-Structural hole; 150-Motor; 160-Transmission assembly; 161-First gear; 162-Second gear; 170-Connector; 180-Lead screw; 190-Threaded sleeve; 201-First fixed seat; 202-Second fixed seat; 211-Third fixed seat; 212-Fourth fixed seat; 220-Cover plate; 230-End plate; 240-Rubber pad; 250-Sealing ring. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , Figure 1 This is a schematic diagram of the shield attitude calibration and correction device installed at the tail of the shield machine in an embodiment of this utility model. Figure 2 This is a schematic diagram of the shield tunnel attitude alignment and correction device in an embodiment of this utility model. Figure 3 This is an exploded structural diagram of the shield tunnel attitude indicator correction device in an embodiment of this utility model. Figure 4 This is a partial cross-sectional view of the shield tunnel attitude indicator and correction device in an embodiment of this utility model. Figure 5 This is a partial exploded structural diagram of the shield attitude calibration and correction device in this embodiment of the present invention. This embodiment provides a shield attitude calibration and correction device, including multiple propulsion units connected to the tail of the shield machine. Each propulsion unit includes: a propulsion cylinder 110, a first connecting seat 120, a second connecting seat 130, a support 140, a motor 150, a transmission assembly 160, a connector 170, at least two lead screws 180, and threaded sleeves 190 corresponding to each lead screw 180. The first connecting seat 120 is connected to the output end of the propulsion cylinder 110, and the second connecting seat 130 slides against the first connecting seat 120. The system is dynamically connected, with the support 140 mounted on the second connecting seat 130, the lead screw 180 centrally symmetrically mounted on the support 140 and rotatably connected to the support 140, the threaded sleeve 190 forming a lead screw 180 nut pair with the lead screw 180, the threaded sleeve 190 being fixedly connected to the connecting member 170, the connecting member 170 being fixedly connected to the first connecting seat 120, the motor 150 mounted on the second connecting seat 130, the output end of the motor 150 being connected to the input end of the transmission assembly 160, and the output end of the transmission assembly 160 driving the lead screw 180 to rotate synchronously.

[0026] This invention utilizes at least two lead screws 180, a support 140, a connector, a threaded sleeve 190, a first connecting seat 120, and a second connecting seat 130. The rotation of at least two lead screws 180, in conjunction with multiple threaded sleeves 190, allows for the adjustment of the lengths of the first connecting seat 120 and the second connecting seat 130. The use of multiple lead screws 180 reduces the force on a single lead screw 180, thus minimizing the risk of damage. Furthermore, if the thread of a single lead screw 180 is damaged, multiple other lead screws 180 can compensate, eliminating the need for immediate machine shutdown and replacement. The cooperation between the lead screws 180 and the threaded sleeves 190 also results in higher adjustment precision, facilitating accurate adjustments.

[0027] In use, the motor 150 drives the transmission assembly 160 to move, and the transmission assembly 160 drives the lead screw 180 to rotate synchronously. The lead screw 180 and the screw sleeve 190 cooperate to drive the screw sleeve 190 to move relative to the support 140 and the second connecting seat 130, thereby driving the connecting piece 170 connected to the screw sleeve 190 to move relative to the support 140 and the second connecting seat 130, thereby realizing the sliding of the second connecting seat 130 relative to the first connecting seat 120. Moreover, the adjustment accuracy is higher due to the cooperation between the lead screw 180 and the screw sleeve 190, which facilitates precise adjustment.

[0028] Specifically, there are three lead screws 180, which are arranged symmetrically at the center.

[0029] Specifically, the transmission assembly includes a first gear 161 connected to the output end of the motor 150, and a plurality of second gears 162 meshing with the first gear 161 for driving the lead screw 180 to rotate, wherein the number of the second gears 162 corresponds one-to-one with the number of the lead screws 180.

[0030] Specifically, a through groove is provided at the position corresponding to the second gear 162 on the support 140, and multiple second gears 162 pass through the through groove to mesh with the first gear 161.

[0031] Specifically, the threaded sleeve 190 is connected to the middle of the connector 170, and the support 140 has a structural hole 141. The threaded sleeve 190 passes through the structural hole 141 and is connected to the connector 170.

[0032] The output shaft of the motor 150 is arranged parallel to the lead screw 180.

[0033] The outer surface of the second connecting seat 130 is slidably connected to the inner surface of the first connecting seat 120.

[0034] in, Figure 3 The second connecting seat 130 and the support 140 are shown separately.

[0035] refer to Figure 3 and Figure 4 The support 140 is fixedly connected to a plurality of first fixing seats 201; the sides of the first fixing seats 201 are bolted to second fixing seats 202; the lead screw 180 is rotatably mounted on the first fixing seats 201 and the second fixing seats 202. In use, both ends of the lead screw 180 are placed inside the first fixing seats 201 and the second fixing seats 202, which are fixed by bolts, thereby facilitating the disassembly and replacement of the lead screw 180.

[0036] Multiple third fixing seats 211 are fixedly attached to the outer surface of the connector 170; a fourth fixing seat 212 is bolted to the side of the third fixing seat 211; the threaded sleeve 190 is located between the third fixing seat 211 and the fourth fixing seat 212, and is fixedly connected to the third fixing seat 211 and the fourth fixing seat 212; this allows for easy disassembly and replacement of the threaded sleeve 190 and the lead screw 180.

[0037] refer to Figure 2 and Figure 3 The first connecting seat 120 has multiple inspection slots; each of the multiple inspection slots is bolted to a cover plate 220. In use, the inspection slots and cover plates 220 allow for easy opening of the first connecting seat 120, facilitating the replacement of the internal lead screw 180 and thus making it convenient to use.

[0038] refer to Figure 3 and Figure 4 The first connecting seat 120 has multiple guide cylinders fixedly connected inside, and the second connecting seat 130 has a guide rod 131 slidably connected to the guide cylinders. In use, the guide rod 131 can slide inside the guide cylinders, thereby guiding and supporting the telescopic sliding between the second connecting seat 130 and the first connecting seat 120, thus improving stability and distributing the oblique force borne by the lead screw 180.

[0039] refer to Figure 5 The second connecting seat 130 has an end plate 230 detachably fixed to the side away from the first connecting seat 120 by fasteners; a rubber pad 240 is fixed to the side of the end plate 230. In use, the rubber pad 240 provides elastic contact with the pipe segment, thus providing a certain degree of protection, and the fasteners fix the end, making it convenient to install and replace the end, and easy to use.

[0040] Further reference Figure 3 A sealing ring 250 is provided at the connection between the inner surface of the first connecting seat 120 and the outer surface of the second connecting seat 130. During use, lubricating oil can be injected into the interior of the first connecting seat 120 and the second connecting seat 130 to reduce heat at the connection between the lead screw 180 and the threaded sleeve 190, thereby reducing thread damage to the surface of the lead screw 180. The sealing ring 250 seals the first connecting seat 120 and the second connecting seat 130, reducing lubricating oil leakage. The cover plate 220 can be optionally equipped with a sealing element for sealing as needed.

[0041] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A shield tunneling machine attitude alignment and correction device, comprising multiple propulsion units connected to the tail of the shield machine, wherein the propulsion unit comprises: A propulsion cylinder, characterized in that the propulsion unit further includes a first connecting seat, a second connecting seat, a support, a motor, a transmission assembly, a connecting member, at least two lead screws, and threaded sleeves corresponding to each lead screw. The first connecting seat is connected to the output end of the propulsion cylinder, the second connecting seat is slidably connected to the first connecting seat, the support is disposed on the second connecting seat, the lead screws are symmetrically disposed on the support and rotatably connected to the support, the threaded sleeves and the lead screws form a lead screw-nut pair, the threaded sleeves are fixedly connected to the connecting member, the connecting member is fixedly connected to the first connecting seat, the motor is mounted on the second connecting seat, the output end of the motor is connected to the input end of the transmission assembly, and the output end of the transmission assembly drives the lead screws to rotate synchronously.

2. The shield tunnel attitude alignment and correction device as described in claim 1, characterized in that, The number of lead screws is three, and the three lead screws are arranged symmetrically at the center.

3. The shield tunneling attitude alignment and correction device as described in claim 1, characterized in that, The transmission assembly includes a first gear connected to the output end of the motor, and a plurality of second gears meshing with the first gear for driving the lead screw to rotate, wherein the number of the second gears corresponds one-to-one with the number of the lead screw.

4. The shield tunnel attitude alignment and correction device as described in claim 3, characterized in that, A through slot is provided at the position corresponding to the second gear on the support, and multiple second gears pass through the through slot to mesh with the first gear.

5. The shield tunnel attitude alignment and correction device as described in claim 1, characterized in that, A connector is connected to the middle of the threaded sleeve, and a structural hole is provided on the support. The threaded sleeve passes through the structural hole and is connected to the connector.

6. The shield tunnel attitude alignment and correction device as described in claim 1, characterized in that, The outer surface of the second connector is slidably connected to the inner surface of the first connector.

7. The shield tunnel attitude alignment and correction device as described in claim 1, characterized in that, The support is fixedly connected to a plurality of first fixed seats; the side of the first fixed seats is bolted to a second fixed seat; the lead screw is rotatably mounted on the first fixed seats and the second fixed seats.

8. The shield tunnel attitude alignment and correction device as described in claim 1, characterized in that, Multiple third fixing seats are fixedly attached to the outer surface of the connector; a fourth fixing seat is bolted to the side of the third fixing seat; the threaded sleeve is located between the third fixing seat and the fourth fixing seat, and is fixedly connected to the third fixing seat and the fourth fixing seat.

9. The shield tunnel attitude alignment and correction device as described in claim 1, characterized in that, The first connecting seat has multiple inspection slots; each of the multiple inspection slots is bolted with a cover plate.

10. The shield tunnel attitude alignment and correction device as described in claim 1, characterized in that, The first connecting seat has multiple guide cylinders fixedly connected inside, and the second connecting seat has a guide rod that is slidably connected to the guide cylinders.

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