Telescopic tunneling mechanism and tunneling trolley

Abstract

The utility model discloses a telescopic tunneling mechanism and a tunneling trolley. The telescopic tunneling mechanism comprises a cross beam, a transverse moving seat, a telescopic arm and a tunneling mechanism body. The transverse moving seat is slidably arranged on the cross beam; the telescopic arm comprises an outer box body arranged at the bottom of the transverse moving seat, an inner box body is movably arranged in the outer box body, one end, extending out of the outer box body, of the inner box body is connected with a connecting seat, and a telescopic mechanism is connected between the side wall of the outer box body and the side wall of the connecting seat; the driving device has the advantages that the driving mechanism can independently move front and back, and the risk of clamping stagnation or jamming is reduced.

Description

Technical Field

[0001] This application relates to the field of tunnel engineering equipment technology, and in particular to a telescopic tunneling mechanism and a tunneling trolley. Background Technology

[0002] When using non-explosive excavation, existing integrated tunnel construction units require the excavator arm to swing left and right and slide forward and backward to meet the excavation needs at various locations on the tunnel face. This can be achieved using a crossbeam-based forward and backward sliding mechanism and a hydraulically driven left and right swing mechanism. However, due to the wide frame, elastic deformation occurs during the vehicle's forward and backward movement, resulting in significant changes in the frame's spacing (both forward and backward, and left and right). Therefore, the current method of installing the crossbeam's ends in grooves within the frame for forward and backward sliding often encounters movement stagnation or even jamming during construction, affecting the construction progress. Utility Model Content

[0003] The main purpose of this application is to provide a telescopic tunneling mechanism and tunneling trolley, which aims to solve the technical problem that existing tunnel construction units are prone to jamming or getting stuck when sliding forward and backward.

[0004] To achieve the above objectives, this application provides a telescopic tunneling mechanism, including a crossbeam, a transverse sliding seat, a telescopic boom, and a tunneling mechanism; the transverse sliding seat is slidably disposed on the crossbeam; the telescopic boom includes an outer box disposed at the bottom of the transverse sliding seat, an inner box movably disposed inside the outer box, a connecting seat being connected to one end of the inner box extending out of the outer box, and a telescopic mechanism being connected between the side wall of the outer box and the side wall of the connecting seat; the tunneling mechanism is connected to the connecting seat.

[0005] Optionally, it also includes a slewing mechanism, which is connected between the transverse support and the outer housing, and is used to drive the outer housing to rotate by a corresponding angle.

[0006] Optionally, the slewing mechanism includes an upper flange plate, a lower flange plate, a slewing support, and a drive assembly. The upper flange plate is connected to the bottom of the transverse seat; the lower flange plate is connected to the top of the outer housing; the slewing support is disposed between the upper flange plate and the lower flange plate, and the inner ring of the slewing support is connected to the upper flange plate, and the outer ring of the slewing support is connected to the lower flange plate; the drive assembly is used to drive the outer ring of the slewing support to rotate.

[0007] Optionally, the drive assembly includes an external gear ring, a drive motor, and drive teeth. The external gear ring is fixedly sleeved on the outer ring of the slewing support; the drive motor is mounted on the upper flange plate; and the drive teeth are connected to the bottom of the drive motor and mesh with the external gear ring.

[0008] Optionally, the tunneling mechanism includes a tunneling arm and a breaker hammer, with the tunneling arm connected to a connecting seat and the breaker hammer connected to the other end of the tunneling arm.

[0009] Optionally, the tunneling boom includes a first boom, a second boom, a first hydraulic cylinder, a second hydraulic cylinder, and a third hydraulic cylinder. The first boom is hinged to a connecting seat; the second boom is connected to the other end of the first boom; the first hydraulic cylinder is hinged between the connecting seat and the first boom; the second hydraulic cylinder is hinged between the connecting seat and the second boom; and the third hydraulic cylinder is hinged between the top of the second boom and the breaker hammer.

[0010] Optionally, the third hydraulic cylinder is hinged to a connecting rod assembly, which includes a hinge shaft hinged to the third hydraulic cylinder. Two first connecting rods and a second connecting rod are simultaneously hinged to the hinge shaft. The other ends of the two first connecting rods are respectively hinged to both sides of the second boom, and the other end of the second connecting rod is hinged to a breaker hammer.

[0011] Optionally, the transverse sliding seat is slidably sleeved on the crossbeam.

[0012] Optionally, it also includes a transmission mechanism for driving the transverse slide seat to slide on the crossbeam.

[0013] Optionally, a guide rail is provided between the outer casing and the inner casing.

[0014] To achieve the above objectives, this application also provides a tunneling trolley, including a frame on which a telescopic tunneling mechanism as described above is mounted.

[0015] The beneficial effects that this application can achieve are as follows:

[0016] This application includes a crossbeam, a transverse sliding seat, a telescopic boom, and a tunneling mechanism. The transverse sliding seat is slidably mounted on the crossbeam. The telescopic boom includes an outer housing located at the bottom of the transverse sliding seat, with an inner housing movably mounted inside the outer housing. A connecting seat is connected to one end of the inner housing extending beyond the outer housing. A telescopic mechanism connects the sidewall of the outer housing to the sidewall of the connecting seat. The tunneling mechanism is connected to the connecting seat. When the tunneling mechanism needs to move forward or backward, based on the structural design of the telescopic boom, the inner housing can be extended or retracted into the outer housing via the telescopic mechanism, thus achieving the forward and backward movement of the tunneling mechanism. This eliminates the need for the entire crossbeam to move forward or backward to move the tunneling mechanism, giving the tunneling mechanism independent forward and backward movement capabilities. It also eliminates the need for a crossbeam and chute connection, reducing the overall weight of the machine and improving reliability and stability, thereby preventing jamming or stuck situations. Therefore, when this application is used on a tunneling trolley, it can reduce downtime caused by jamming or stuck situations, improve construction continuity, and ensure construction efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of the structure of a telescopic tunneling mechanism in an embodiment of this application (when installed on a platform);

[0019] Figure 2 for Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0020] Figure 3 This is a schematic diagram of the connection structure of the transverse sliding seat, the rotary mechanism, and the outer housing in an embodiment of this application;

[0021] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0022] Figure 5 This is a schematic diagram of the tunneling mechanism according to an embodiment of this application.

[0023] Figure label:

[0024] 100-Crossbeam, 200-Horizontal sliding seat, 300-Telescopic boom, 310-Outer housing, 320-Inner housing, 330-Connecting seat, 340-Telescopic mechanism, 400-Tunneling mechanism, 410-Tunneling boom, 411-First boom, 412-Second boom, 413-First cylinder, 414-Second cylinder, 415-Third cylinder, 416-Linkage assembly, 4161-Hinge shaft, 4162-First link, 4163-Second link, 420-Breaker, 500-Slewing mechanism, 510-Upper flange plate, 520-Lower flange plate, 530-Slewing support, 540-Drive assembly, 541-External gear ring, 542-Drive motor, 543-Drive gear, 600-Transmission mechanism.

[0025] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0028] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions 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 those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0030] Example 1

[0031] Reference Figures 1-5 This embodiment provides a telescopic tunneling mechanism, including a crossbeam 100, a transverse sliding seat 200, a telescopic boom 300, and a tunneling mechanism 400; the transverse sliding seat 200 is slidably disposed on the crossbeam 100; the telescopic boom 300 includes an outer box 310 disposed at the bottom of the transverse sliding seat 200, an inner box 320 movably disposed inside the outer box 310, a connecting seat 330 connected to one end of the inner box 320 extending out of the outer box 310, and a telescopic mechanism 340 connected between the side wall of the outer box 310 and the side wall of the connecting seat 330; the tunneling mechanism 400 is connected to the connecting seat 330.

[0032] In this embodiment, when the tunneling mechanism 400 needs to move back and forth, based on the structural design of the telescopic boom 300, the inner housing 320 can be extended or retracted into the outer housing 310 via the telescopic mechanism 340, thereby realizing the back and forth movement of the tunneling mechanism 400. This eliminates the need for the entire crossbeam 100 to move back and forth to drive the movement of the tunneling mechanism 400, allowing the tunneling mechanism 400 to move independently. This eliminates the need for the crossbeam 100 to cooperate with the chute, reducing the overall weight of the machine and improving reliability and stability, thus preventing jamming or stuck situations. Therefore, when this embodiment is used on a tunneling trolley, it can reduce the downtime caused by jamming or stuck situations, improve construction continuity, and ensure construction efficiency.

[0033] It should be noted that the telescopic mechanism 340 here can be an automatic telescopic device such as a hydraulic cylinder, a pneumatic cylinder, or an electric push rod.

[0034] As an optional implementation, a slewing mechanism 500 is also included. The slewing mechanism 500 is connected between the transverse support 200 and the outer housing 310. The slewing mechanism 500 is used to drive the outer housing 310 to rotate by a corresponding angle. By setting up the slewing mechanism 500, the outer housing 310 and its connecting accessories can be rotated as a whole, which can drive the tunneling mechanism 400 to swing left and right by a certain angle. Without interfering with other components, it can swing horizontally at any angle to adapt to more excavation operation needs and provide flexible operation.

[0035] As an optional implementation, the slewing mechanism 500 includes an upper flange plate 510, a lower flange plate 520, a slewing support 530, and a drive assembly 540. The upper flange plate 510 is connected to the bottom of the transverse sliding seat 200; the lower flange plate 520 is connected to the top of the outer housing 310; the slewing support 530 is disposed between the upper flange plate 510 and the lower flange plate 520, and the inner ring of the slewing support 530 is connected to the upper flange plate 510, and the outer ring of the slewing support 530 is connected to the lower flange plate 520; the drive assembly 540 is used to drive the outer ring of the slewing support 530 to rotate.

[0036] In this embodiment, when the tunneling mechanism 400 needs to swing, the outer ring of the slewing support 530 is rotated by the drive assembly 540, which in turn rotates the lower flange plate 520 and its bottom outer casing 310, thus achieving synchronous horizontal swinging of the tunneling mechanism 400. At this time, since the inner ring of the slewing support 530 is connected to the upper flange plate 510, the inner ring of the slewing support 530 does not rotate with the outer ring, meaning the upper flange plate 510 does not rotate. This achieves both rotational and support functions. Furthermore, due to the limited space at the top of the platform, and the fact that the slewing support 530 cannot withstand axial tension, the structure of connecting the inner ring of the slewing support 530 to the upper flange plate 510 and the outer ring of the slewing support 530 to the lower flange plate 520 solves the axial force problem.

[0037] It should be noted that the inner ring of the slewing bearing 530 can be connected to the upper flange plate 510 by bolts 550. Similarly, the outer ring of the slewing bearing 530 is also connected to the lower flange plate 520 by bolts 550, which facilitates assembly and disassembly.

[0038] As an optional implementation, the drive assembly 540 includes an external gear ring 541, a drive motor 542, and a drive tooth 543. The external gear ring 541 is fixedly sleeved on the outer ring of the slewing support 530; the drive motor 542 is disposed on the upper flange plate 510; the drive tooth 543 is connected to the bottom of the drive motor 542, and the drive tooth 543 is meshed with the external gear ring 541.

[0039] In this embodiment, during driving, the drive motor 542 (which can be a stepper motor or a servo motor) drives the drive gear 543 to rotate, thereby driving the outer gear ring 541 and the outer ring of the slewing support 530 to rotate synchronously. Automatic control can be achieved with high control precision, and the tunneling mechanism 400 can be made to swing horizontally at any angle without interference.

[0040] It should be noted that multiple sets of drive motor 542 and drive gear 543 components can be set here to improve driving force and ensure that large components can be effectively driven to rotate.

[0041] As an optional implementation, the tunneling mechanism 400 includes a tunneling arm 410 and a hydraulic breaker 420. The tunneling arm 410 is connected to the connecting seat 330; the hydraulic breaker 420 is connected to the other end of the tunneling arm 410. The tunneling arm 410 can drive the hydraulic breaker 420 to swing up and down to the corresponding position, and non-explosive excavation operations can be carried out by the hydraulic breaker 420.

[0042] As an optional implementation, the tunneling boom 410 includes a first boom 411, a second boom 412, a first hydraulic cylinder 413, a second hydraulic cylinder 414, and a third hydraulic cylinder 415. The first boom 411 is hinged to the connecting seat 330; the second boom 412 is connected to the other end of the first boom 411; the first hydraulic cylinder 413 is hinged between the connecting seat 330 and the first boom 411; the second hydraulic cylinder 414 is hinged between the connecting seat 330 and the second boom 412; and the third hydraulic cylinder 415 is hinged between the top of the second boom 412 and the breaker hammer 420.

[0043] In this embodiment, the first hydraulic cylinder 413 can drive the first boom 411 to swing up and down, thereby driving the second boom 412 and the breaker 420 to swing up and down significantly. The second hydraulic cylinder 414 can drive the second boom 412 to swing up and down to a certain extent. The third hydraulic cylinder 415 can drive the breaker 420 to swing up and down slightly. Through the coordinated operation of the first hydraulic cylinder 413, the second hydraulic cylinder 414 and the third hydraulic cylinder 415, the swing range and position of the breaker 420 can be precisely controlled to meet the needs of more precise fixed-point excavation operations.

[0044] As an optional implementation, the third cylinder 415 is hinged to a connecting rod assembly 416. The connecting rod assembly 416 includes a hinge shaft 4161 hinged to the third cylinder 415. Two first connecting rods 4162 and a second connecting rod 4163 are simultaneously hinged to the hinge shaft 4161. The other ends of the two first connecting rods 4162 are respectively hinged to both sides of the second boom 412, and the other end of the second connecting rod 4163 is hinged to the breaker hammer 420.

[0045] In this embodiment, when the third cylinder 415 extends or retracts to pull or push the hinge shaft 4161, the first connecting rod 4162 and the second connecting rod 4163 move synchronously. The first connecting rod 4162 plays a certain supporting role, thereby driving the breaker hammer 420 to swing accordingly. The structure is compact and the movement is more coordinated.

[0046] As an optional implementation, the transverse sliding seat 200 is slidably sleeved on the crossbeam 100, that is, the transverse sliding seat 200 has a shell structure, the connection structure is reliable and stable, and the risk of the transverse sliding seat 200 falling off is prevented.

[0047] As an optional implementation, a transmission mechanism 600 is also included. The transmission mechanism 600 is used to drive the transverse sliding seat 200 to slide on the crossbeam 100. Here, the transmission mechanism 600 can adopt existing hydraulic drive or servo drive and other drive structures, thereby driving the tunneling mechanism 400 to move left and right along the crossbeam 100 as a whole with the transverse sliding seat 200, so as to realize the lateral position adjustment of the tunneling mechanism 400.

[0048] As an optional implementation, a guide rail is provided between the outer housing 310 and the inner housing 320 to reduce wear between the outer housing 310 and the inner housing 320.

[0049] Example 2

[0050] This embodiment provides a tunneling trolley, including a frame on which a telescopic tunneling mechanism as described in the above embodiment is mounted. This reduces downtime caused by jamming or jamming during forward and backward movement, improves construction continuity, and ensures construction efficiency.

[0051] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A telescopic excavation mechanism, characterized in that, The utility model relates to a tunneling machine, which comprises: a beam (100); a horizontal moving seat (200) slidingly arranged on the beam (100); a telescopic arm (300) comprising an outer box (310) arranged at the bottom of the horizontal moving seat (200), an inner box (320) movably arranged in the outer box (310), a connecting seat (330) connected to one end of the inner box (320) extending out of the outer box (310), and a telescopic mechanism (340) connected between the side wall of the outer box (310) and the side wall of the connecting seat (330); a tunneling mechanism (400) connected to the connecting seat (330).

2. A telescoping excavation mechanism as claimed in claim 1, wherein, The utility model also comprises a rotating mechanism (500) connected between the horizontal moving seat (200) and the outer box (310), which is used to drive the outer box (310) to rotate by a corresponding angle.

3. A retraction mechanism according to claim 2, wherein, The rotating mechanism (500) comprises: an upper flange plate (510) connected to the bottom of the horizontal moving seat (200); a lower flange plate (520) connected to the top of the outer box (310); a rotating support (530) arranged between the upper flange plate (510) and the lower flange plate (520), wherein the inner ring of the rotating support (530) is connected to the upper flange plate (510), and the outer ring of the rotating support (530) is connected to the lower flange plate (520); a driving assembly (540) used to drive the outer ring of the rotating support (530) to rotate.

4. A retraction mechanism as claimed in claim 3, wherein, The driving assembly (540) comprises: an outer tooth ring (541) fixedly sleeved on the outer ring of the rotating support (530); a driving motor (542) arranged on the upper flange plate (510); a driving tooth (543) connected to the bottom of the driving motor (542), and the driving tooth (543) is in meshing connection with the outer tooth ring (541).

5. A telescopic excavation mechanism according to any one of claims 1-4, characterized in that The tunneling mechanism (400) comprises: a tunneling arm (410) connected to the connecting seat (330); a breaking hammer (420) connected to the other end of the tunneling arm (410).

6. A telescoping cutting mechanism as claimed in claim 5, wherein, The tunneling arm (410) comprises: a first arm frame (411) hingedly connected to the connecting seat (330); a second arm frame (412) connected to the other end of the first arm frame (411); a first oil cylinder (413) hingedly connected between the connecting seat (330) and the first arm frame (411); a second oil cylinder (414) hingedly connected between the connecting seat (330) and the second arm frame (412). A third oil cylinder (415) is articulated between the top of the second arm frame (412) and the breaking hammer (420).

7. A telescoping cutting mechanism as claimed in claim 6, wherein, The third oil cylinder (415) is articulated with a linkage assembly (416), which comprises an articulated shaft (4161) articulated with the third oil cylinder (415), and two first linkages (4162) and a second linkage (4163) articulated on the articulated shaft (4161) simultaneously, the other ends of the two first linkages (4162) are articulated on the two sides of the second arm frame (412) respectively, and the other end of the second linkage (4163) is articulated on the breaking hammer (420).

8. A telescopic excavating mechanism as claimed in claim 1 or 7, characterized in that Further comprising a transmission mechanism (600) for driving the transverse moving seat (200) to slide on the cross beam (100).

9. A retraction mechanism as claimed in claim 1, wherein, A guide sliding rail is arranged between the outer box body (310) and the inner box body (320).

10. A jumbo, characterized in that A gantry is included, and the gantry is provided with a telescopic tunneling mechanism as claimed in any one of claims 1-9.

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