A TBM center swing joint device

Abstract

The utility model relates to tunnel boring machine technical field, concretely relates to a TBM center rotary joint device. The TBM center rotary joint device includes rotary assembly and elastic component, and rotary assembly includes stator and rotor, and the stator is suitable for being connected with the slag collecting bucket of tunnel boring machine, and the rotor rotatably installs in the stator, and one end of the rotor is connected with the cutterhead of tunnel boring machine to drive the rotor to rotate when the cutterhead rotates, and the elastic component includes elastic piece, and one end of elastic piece is connected with the stator, and the other end of elastic piece is connected with the slag collecting bucket. The TBM center rotary joint device of the utility model embodiment can improve the stability and reliability of center rotary joint device.

Description

Technical Field

[0001] This utility model relates to the field of tunnel boring machine technology, specifically to a TBM center rotary joint device. Background Technology

[0002] The cutters mounted on the cutterhead of a TBM (Tunnel Boring Machine) are used to cut rocks. To prevent the cutters from overheating, water is sprayed through a central rotary joint to cool them during the tunneling process, while also reducing dust and improving the moisture content of the excavated soil.

[0003] However, in related technologies, the central rotary joint device is subjected to significant impacts and vibrations during the tunnel boring machine's excavation process, which affects the stability and reliability of the central rotary joint device. Utility Model Content

[0004] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention provide a TBM center rotary joint device, which can improve the stability and reliability of the center rotary joint device.

[0005] The TBM center rotary joint device of this utility model embodiment includes: a rotary assembly, which includes a stator and a rotor. The stator is adapted to be connected to the muck hopper of the tunnel boring machine, and the rotor is rotatably installed in the stator. One end of the rotor is connected to the cutterhead of the tunnel boring machine so as to drive the rotor to rotate when the cutterhead rotates; and an elastic assembly, which includes an elastic element. One end of the elastic element is connected to the stator, and the other end of the elastic element is connected to the muck hopper.

[0006] The TBM center rotary joint device of this utility model, by setting an elastic element between the stator and the slag hopper, utilizes the elastic force of the elastic element to buffer the vibration of the tunnel boring machine, prevents the rotary assembly from being rigidly stressed, improves the impact resistance and vibration resistance of the rotary assembly, and thus improves the stability and reliability of the center rotary joint device.

[0007] In some embodiments, there are multiple elastic elements, which are arranged at intervals, and one end of each elastic element is connected to the stator, while the other end of each elastic element is connected to the slag collection hopper.

[0008] In some embodiments, the elastic component includes a first mounting plate, one end of which is connected to the other end of the plurality of elastic elements, and the other end of which is connected to the slag collection hopper; and / or, the elastic component includes a second mounting plate, one end of which is connected to the one end of the plurality of elastic elements, and the other end of which is connected to the stator.

[0009] In some embodiments, the TBM center rotary joint device further includes a connecting rod, one end of which is connected to the slag collection hopper, and the other end of which is connected to the first mounting plate.

[0010] In some embodiments, one end of the connecting rod is provided with a mounting base, and the mounting base is connected to the slag collection hopper.

[0011] In some embodiments, the TBM center rotary joint device further includes a mounting block connected to the second mounting plate, the mounting block having mounting holes in which the stator is mounted.

[0012] In some embodiments, the inner circumferential surface of the mounting hole is provided with a first limiting portion, and the outer circumferential surface of the stator is provided with a second limiting portion, the second limiting portion being in a limiting engagement with the first limiting portion.

[0013] In some embodiments, the stator has a first fluid flow channel, the rotor has a second fluid flow channel, the second fluid flow channel is connected to the first fluid flow channel, the inlet of the first fluid flow channel is adapted to be connected to a liquid source, and a connecting pipe is provided between the second fluid flow channel and the cutter head.

[0014] In some embodiments, the TBM center rotary joint device further includes a valve block, one end of which is connected to the rotor and the other end of which is connected to the cutter head. The valve block has a flow divider channel, the outlet of the second fluid flow channel is connected to the flow divider channel, and the flow divider channel is connected to the connecting pipe.

[0015] In some embodiments, the rotary assembly further includes a seal, wherein an annular groove is provided on the inner circumferential surface of at least one end of the stator, and the seal engages within the annular groove to seal the gap between the stator and the rotor. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the TBM center rotary joint device according to an embodiment of the present invention.

[0017] Figure 2 This is a cross-sectional view of the TBM center rotary joint device according to an embodiment of the present invention.

[0018] Figure label:

[0019] Fixed plate 10, water inlet pipe 20,

[0020] Rotary assembly 1, stator 11, second limiting part 111, first fluid flow channel 112, annular groove 113

[0021] Rotor 12, second fluid flow channel 121, first section 122, second section 123, third section 124, fourth section 125.

[0022] Seal 13,

[0023] Elastic component 2, elastic element 21, first mounting plate 22, second mounting plate 23.

[0024] Connecting rod 3, mounting base 4

[0025] Mounting block 5, mounting hole 51, first limiting part 511

[0026] Connecting pipe 6, valve block 7, diversion channel 71. Detailed Implementation

[0027] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0028] The following is in conjunction with the appendix Figure 1 and Figure 2 The TBM center rotary joint device according to an embodiment of the present invention will be described.

[0029] The TBM center rotary joint device of this embodiment includes a rotary assembly 1 and an elastic assembly 2. The rotary assembly 1 includes a stator 11 and a rotor 12. The stator 11 is adapted to be connected to the muck hopper of the tunnel boring machine (TBM). The rotor 12 is rotatably mounted inside the stator 11, and one end of the rotor 12 is connected to the cutterhead of the TBM so that the rotor 12 rotates when the cutterhead rotates. The elastic assembly 2 includes an elastic element 21, one end of which is connected to the stator 11, and the other end of which is connected to the muck hopper.

[0030] The TBM center rotary joint device of this utility model provides an elastic element 21 between the stator 11 and the slag hopper. The elastic force of the elastic element 21 acts as a buffer during the vibration of the tunnel boring machine, preventing the rotary assembly 1 from being rigidly stressed, improving the impact resistance and vibration resistance of the rotary assembly 1, and thus improving the stability and reliability of the center rotary joint device.

[0031] Specifically, such as Figure 1 and Figure 2As shown, the upper end of the elastic element 21 is connected to the slag collection hopper, and the lower end of the elastic element 21 is connected to the outer peripheral surface of the stator 11. The stator 11 is fitted on the outer periphery of the rotor 12, and the rotor 12 is rotatable relative to the stator 11. One end of the rotor 12 extends out of the stator 11 and is connected to the cutter head, driving the rotor 12 to rotate when the cutter head rotates.

[0032] Optionally, the lower part of the slag hopper of the tunnel boring machine is provided with a fixing plate 10, and the stator 11 is connected to the fixing plate 10 to fix the stator 11 on the fixing plate 10.

[0033] It is understandable that the tunnel boring machine exerts a relatively large impact and vibration on the central rotary joint device during the tunneling process. By setting an elastic element 21 between the rotary component 1 and the slag hopper, the energy of the impact and vibration is absorbed by the elastic element 21, thereby effectively reducing the impact force and vibration transmission of the tunnel boring machine on the rotary component 1, and thus improving the stability and reliability of the rotary component 1.

[0034] In some embodiments, there are multiple elastic elements 21, which are arranged at intervals, and one end of each elastic element 21 is connected to the stator 11, and the other end of each elastic element 21 is connected to the slag collection hopper.

[0035] Specifically, such as Figure 2 As shown, the upper ends of multiple elastic elements 21 are connected to the slag collection hopper, and the lower ends of multiple elastic elements 21 are connected to the outer peripheral surface of the stator 11. The multiple elastic elements 21 are spaced apart, which can more effectively disperse and absorb impact energy, further improve the impact resistance of the rotary assembly 1, and thus improve the stability and reliability of the central rotary joint device.

[0036] In some embodiments, the elastic component 2 includes a first mounting plate 22, one end of which is connected to the other end of a plurality of elastic elements 21, and the other end of which is connected to a slag collection hopper.

[0037] Specifically, such as Figure 2 As shown, the upper end of the first mounting plate 22 is connected to the slag collection hopper, and the lower end of the first mounting plate 22 is connected to the upper ends of multiple elastic elements 21. By connecting multiple elastic elements 21 to the slag collection hopper simultaneously through the first mounting plate 22, the force transmitted by the slag collection hopper is evenly distributed to each elastic element 21, thereby improving the impact resistance and vibration damping performance of the central rotary joint device.

[0038] In some embodiments, the elastic component 2 includes a second mounting plate 23, one end of which is connected to one end of a plurality of elastic elements 21, and the other end of which is connected to the stator 11.

[0039] Specifically, such as Figure 2As shown, the upper end of the second mounting plate 23 is connected to the lower end of multiple elastic elements 21, and the lower end of the second mounting plate 23 is connected to the outer peripheral surface of the stator 11. By connecting multiple elastic elements 21 to the stator 11 simultaneously through the second mounting plate 23, the force transmitted by the multiple elastic elements 21 is evenly distributed on the stator 11, thereby improving the load-bearing capacity of the rotary assembly 1.

[0040] In some embodiments, the TBM center rotary joint device further includes a connecting rod 3, one end of which is connected to the slag hopper, and the other end of which is connected to the first mounting plate 22.

[0041] Specifically, such as Figure 1 and Figure 2 As shown, the upper end of the connecting rod 3 is connected to the slag collection hopper, and the lower end of the connecting rod 3 is connected to the first mounting plate 22. By setting the connecting rod 3, the installation position of the rotating component 1 can be adjusted, thereby improving the ease of installation.

[0042] In some embodiments, one end of the connecting rod 3 is provided with a mounting base 4, which is connected to the slag collection hopper.

[0043] Specifically, such as Figure 1 and 2 As shown, the upper end of the connecting rod 3 is provided with a mounting base 4, which has two spaced connecting ears. By fitting the fixing plate 10 at the lower end of the slag hopper between the two connecting ears, it is easy to connect the fixing plate 10 with the connecting ears, thereby realizing the connection between the mounting base 4 and the slag hopper. Moreover, the structure is simple and easy to disassemble and assemble.

[0044] Optionally, the connecting ear is provided with a first through hole, and the fixing plate 10 is provided with a second through hole opposite to the first through hole. Fasteners are inserted through the first through hole and the second through hole to realize the detachable connection between the connecting ear and the fixing plate 10.

[0045] For example, the fastener is a bolt.

[0046] In some embodiments, the TBM center rotary joint device further includes a mounting block 5, which is connected to the second mounting plate 23. The mounting block 5 has a mounting hole 51, and the stator 11 is mounted in the mounting hole 51.

[0047] Specifically, such as Figure 2 As shown, the upper end of the mounting block 5 is connected to the second mounting plate 23. By fitting the stator 11 into the mounting hole 51 of the mounting block 5, the positioning accuracy of the stator 11 and the connection stability between the stator 11 and the mounting block 5 are improved.

[0048] Optionally, the diameter of the mounting hole 51 is slightly larger than the outer diameter of the stator 11, which facilitates the smooth installation and positioning of the stator 11. At the same time, when the rotating assembly 1 vibrates, this gap provides a certain buffer space, effectively reducing the transmission of vibration to the mounting block 5.

[0049] In some embodiments, the inner peripheral surface of the mounting hole 51 is provided with a first limiting portion 511, and the outer peripheral surface of the stator 11 is provided with a second limiting portion 111, the second limiting portion 111 being in a limiting engagement with the first limiting portion 511. By the limiting engagement between the first limiting portion 511 on the mounting block 5 and the second limiting portion 111 on the stator 11, the installation accuracy of the stator 11 is improved.

[0050] Optionally, such as Figure 2 As shown, the first limiting part 511 includes two baffles, which are symmetrically arranged in the radial direction of the mounting hole 51. The second limiting part 111 includes two blocks, which are arranged opposite to the two baffles. The limiting and fixing of the stator 11 is achieved by the cooperation between the blocks on the stator 11 and the baffles on the mounting block 5.

[0051] In some embodiments, the stator 11 has a first liquid flow channel 112, the rotor 12 has a second liquid flow channel 121, the second liquid flow channel 121 is connected to the first liquid flow channel 112, the inlet of the first liquid flow channel 112 is adapted to be connected to a liquid source, and a connecting pipe 6 is provided between the second liquid flow channel 121 and the cutter head.

[0052] Specifically, such as Figure 1 As shown, the stator 11 has a mounting cavity, the rear end of the rotor 12 is fitted into the mounting cavity and the rear end face of the rotor 12 is located within the mounting cavity, the first fluid flow channel 112 is located on the rear side of the rotor 12, and the first fluid flow channel 112 is formed between the rear end face of the rotor 12 and the rear end face of the stator 11. The front end of the rotor 12 extends out of the mounting cavity, and the second fluid flow channel 121 penetrates the rotor 12 along the axial direction of the rotor 12.

[0053] The rear end of the first liquid flow channel 112 is connected to the water inlet pipe 20, and the front end of the first liquid flow channel 112 is connected to the rear end of the second liquid flow channel 121. Water from the water inlet pipe 20 enters the second liquid flow channel 121 through the first liquid flow channel 112. Water in the second liquid flow channel 121 flows to the cutter head through the connecting pipe 6, thereby cooling the cutter on the cutter head, reducing dust, and improving the moisture content of the slag.

[0054] Optionally, the connecting pipe 6 is a flexible hose.

[0055] In some embodiments, the TBM center rotary joint device further includes a valve block 7, one end of which is connected to the rotor 12 and the other end of which is connected to the cutter head. The valve block 7 has a diversion channel 71, the outlet of the second liquid flow channel 121 is connected to the diversion channel 71, and the diversion channel 71 is connected to the connecting pipe 6.

[0056] Specifically, such as Figure 1As shown, the front end of the rotor 12 is located on the front side of the stator 11. The valve block 7 is connected to the front end of the rotor 12. The second liquid flow channel 121 is connected to the diversion channel 71 in the valve block 7 to transport the water in the second liquid flow channel 121 to the diversion channel 71. After the water is diverted through the diversion channel 71, it is transported to the connecting pipe 6, which can achieve a better cooling effect.

[0057] Optionally, the rotor 12 is threadedly connected to the valve block 7, and when the cutter head rotates, it drives the valve block 7 to rotate, and the rotation of the valve block 7 drives the rotor 12 to rotate.

[0058] In some embodiments, the rotary assembly 1 further includes a seal 13, and an annular groove 113 is provided on the inner circumferential surface of at least one end of the stator 11. The seal 13 is fitted in the annular groove 113 to seal the gap between the stator 11 and the rotor 12.

[0059] Specifically, such as Figure 1 As shown, by setting the seal 13, water is prevented from flowing out from the gap between the rotor 12 and the stator 11, thereby improving the sealing performance between the stator 11 and the rotor 12 and thus improving the water delivery efficiency.

[0060] Optionally, there are multiple seals 13, which are divided into two groups. Each group of seals 13 includes two seals 13. One group of seals 13 is located at the rear end of the rotor 12, and the other group of seals 13 is located at the front end of the rotor 12, thereby further improving the sealing performance between the rotor 12 and the stator 11.

[0061] Optionally, the rotor 12 includes a first segment 122, a second segment 123, a third segment 124, and a fourth segment 125 connected in sequence. The first segment 122 is sealed to the rear end of the stator 11, the second segment 123 is clearance-fitted to the stator 11, the third segment 124 is sealed to the front end of the stator 11, and the fourth segment 125 is located on the outside of the stator 11. One set of seals 13 is provided in the first segment 122, and another set of seals 13 is provided in the third segment 124. By clearance-fitting the second segment 123 of the rotor 12 to the stator 11, the contact area between the inner circumferential surface of the stator 11 and the outer circumferential surface of the rotor 12 is reduced, which helps to reduce the rotational friction between the rotor 12 and the stator 11, thereby increasing the service life of the rotary assembly 1, reducing the replacement frequency of the rotary assembly 1, and reducing maintenance costs.

[0062] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0063] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0064] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0065] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0066] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0067] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A TBM center rotary joint device, characterized in that, include: A slewing assembly comprising a stator and a rotor, the stator being adapted to be connected to a slag hopper of a tunnel boring machine, the rotor being rotatably mounted within the stator, one end of the rotor being connected to the cutterhead of the tunnel boring machine to drive the rotor to rotate when the cutterhead rotates; An elastic component, comprising an elastic element, one end of which is connected to the stator and the other end of which is connected to the slag collection hopper.

2. The TBM center rotary joint device according to claim 1, characterized in that, There are multiple elastic elements, which are arranged at intervals. One end of each elastic element is connected to the stator, and the other end of each elastic element is connected to the slag collection hopper.

3. The TBM center rotary joint device according to claim 2, characterized in that, The elastic component includes a first mounting plate, one end of which is connected to the other end of the plurality of elastic elements, and the other end of which is connected to the slag collection hopper; and / or The elastic component includes a second mounting plate, one end of which is connected to one end of the plurality of elastic elements, and the other end of which is connected to the stator.

4. The TBM center rotary joint device according to claim 3, characterized in that, It also includes a connecting rod, one end of which is connected to the slag hopper, and the other end of which is connected to the first mounting plate.

5. The TBM center rotary joint device according to claim 4, characterized in that, One end of the connecting rod is provided with a mounting base, which is connected to the slag collection hopper.

6. The TBM center rotary joint device according to claim 3, characterized in that, It also includes a mounting block connected to the second mounting plate, the mounting block having mounting holes in which the stator is mounted.

7. The TBM center rotary joint device according to claim 6, characterized in that, The inner circumferential surface of the mounting hole is provided with a first limiting part, and the outer circumferential surface of the stator is provided with a second limiting part, the second limiting part being in a limiting engagement with the first limiting part.

8. The TBM center rotary joint device according to any one of claims 1-7, characterized in that, The stator has a first liquid flow channel, the rotor has a second liquid flow channel, the second liquid flow channel is connected to the first liquid flow channel, the inlet of the first liquid flow channel is adapted to be connected to a liquid source, and a connecting pipe is provided between the second liquid flow channel and the cutter head.

9. The TBM center rotary joint device according to claim 8, characterized in that, It also includes a valve block, one end of which is connected to the rotor and the other end of which is connected to the cutter head. The valve block has a flow divider channel, the outlet of the second liquid flow channel is connected to the flow divider channel, and the flow divider channel is connected to the connecting pipe.

10. The TBM center rotary joint device according to claim 8, characterized in that, The rotary assembly also includes a seal, and an annular groove is provided on the inner circumferential surface of at least one end of the stator. The seal fits into the annular groove to seal the gap between the stator and the rotor.

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