Pipeline extending device for shield tunneling machine split starting

Abstract

The utility model relates to a pipeline extending device for shield tunneling machine split starting, which is applied to the technical field of shield tunneling machine pipeline tools, solves the technical problem that a shield tunneling machine split starting pipeline is difficult to extend, and comprises a support for bearing the pipeline, and a traveling wheel and an auxiliary wheel which are arranged on the support, the walking wheel is located on a trolley track, the auxiliary wheel is in contact with the duct piece, a universal rotating device is arranged between the auxiliary wheel and the support, the universal rotating device comprises a base fixed to the support, a ball seat located in the base and a rotating body connected in the ball seat in a universal rotating mode, and the rotating body is fixedly connected with the auxiliary wheel. The utility model has the effects of strong generality, capability of being prefabricated in advance and capability of shortening the on-site pipeline connection construction period.

Description

Technical Field

[0001] The utility model relates to the technical field of shield machine pipeline tooling, and more specifically, it relates to a pipeline extension device for the split start of a shield machine. Background Technique

[0002] Since urban traffic construction is an important construction task in infrastructure, and underground traffic is one of the most popular traffic modes at present, an underground traffic line includes tunnels and several passing stations distributed on the tunnel line, and the stations are constructed first. As Figure 4 shown in the schematic diagram of the starting state of the shield machine, since the length of the shield machine is about one hundred meters, during the construction of the station 63, it is impossible to ensure the complete assembly of the shield machine. Therefore, the shield machine will start in a split manner, separating the main machine 61 and the trolley 62, or separating some trolleys 62, and the breaking positions are connected by flexible pipelines 64.

[0003] Chinese Patent with the application number CN201922272657.4 discloses a pipeline support for the split start of a shield machine, which includes an I-beam guide rail arranged on one side of the tunnel along the tunneling direction of the tunnel and a plurality of pipeline hanging parts connected to the I-beam guide rail and slidable in the length direction of the I-beam guide rail. The pipeline hanging parts include a U-shaped bracket, a hook arranged at the bottom of the U-shaped bracket for hanging pipelines, and a pair of pulleys slidably and fittingly installed in the inner tracks on both sides of the I-beam guide rail. The axle of the pulley extends outside the I-beam guide rail and is fixedly connected to the U-shaped bracket, and the pulley can rotate around the axle.

[0004] When installing the above I-beam track, additional structures are required. A "door"-shaped frame is made of profiled steel in the tunnel. Since the frame is fabricated on-site, it is difficult to prefabricate in advance, and these frames are disposable and can only be treated as scrap iron after use, increasing the difficulty of on-site construction and affecting the construction period of on-site construction. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present utility model is to provide a pipeline extension device for the split start of a shield machine, and its advantage is that it has universality and can be prefabricated in advance, shortening the construction period of on-site pipeline connection construction.

[0006] The above technical purpose of the present utility model is achieved through the following technical solutions: A pipeline extension device for the split start of a shield machine includes a bracket for receiving pipelines, and traveling wheels and auxiliary wheels arranged on the bracket. The traveling wheels are located on the trolley track, the auxiliary wheels are in contact with the segment, and a universal rotating device is arranged between the auxiliary wheels and the bracket. The universal rotating device includes a base fixed on the bracket, a ball seat located in the base, and a rotating body universally rotatably connected in the ball seat. The rotating body is fixedly connected to the auxiliary wheel.

[0007] The effects achieved by the above settings are as follows: The pipeline is placed on the support, avoiding direct dragging on the ground. The support is provided with traveling wheels and auxiliary wheels, enabling the support to move synchronously with the shield machine. Due to different sizes of the tunnel diameter, the degree of fitting between the auxiliary wheels and the segments with different diameters is low. However, the universal rotating device can adjust the attitude of the auxiliary wheels to ensure that the auxiliary wheels can fit the segments with different diameters, improving the overall versatility of the device.

[0008] Further setting: The rotating body is concentrically and rotatably connected with a connecting shaft, and a connecting rod is provided between the connecting shaft and the auxiliary wheel.

[0009] The effects achieved by the above settings are as follows: When the diameter difference of the segments is too large and exceeds the adjustment ability of the universal rotating device, at this time, by adding a connecting rod, it is ensured that the auxiliary wheel fits the segment. At the same time, the connecting rod can also determine the size in advance according to the drawing and be prefabricated in advance, without the need for on-site measurement and fitting, ensuring that the construction period will not be extended.

[0010] Further setting: A boss is provided on the lower surface of the ball seat inside the base, and a pressing ring is provided on the upper surface of the ball seat. The pressing ring is fixedly connected to the base by bolts.

[0011] The effects achieved by the above settings are as follows: The ball seat includes two identical structures. During assembly, the ball seat is divided into two halves to wrap the rotating body, and the boss and the pressing ring limit the ball seat, preventing the ball seat from being unstable in position and causing the auxiliary wheel to shake randomly during walking.

[0012] Further setting: The base is detachably fixed to the support by bolts.

[0013] The effects achieved by the above settings are as follows: The support is completed by welding ordinary H-shaped steel. The ball seat and the rotating body are machined parts, which is convenient for separate production and processing of the two, and at the same time convenient for recycling and reuse.

[0014] Further setting: A retaining rod for preventing the pipeline from falling is provided on the support.

[0015] The effects achieved by the above settings are as follows: Initially, the pipeline is wound into a coil shape, and the bending rate of the pipeline needs to meet the fluid requirements. Therefore, there is a risk of the pipeline spreading. The retaining rod is used to prevent the pipeline from detaching from the support.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. It can be prefabricated in advance, shortening the on-site construction period;

[0018] 2. It has strong versatility and is applicable to tunnels with a diameter of 6 meters to 9 meters. Brief Description of the Drawings

[0019] Figure 1aIt is a schematic diagram of the positional relationship between the whole of this embodiment and the shield machine;

[0020] Figure 1b It is Figure 1a The enlarged schematic diagram at position A in

[0021] Figure 2 It is a schematic structural diagram of the whole of this embodiment;

[0022] Figure 3 It is a schematic structural diagram showing the connecting rod in this embodiment;

[0023] Figure 4 It is a schematic structural diagram of this embodiment applied in tunnels with different diameters;

[0024] Figure 5 It is a schematic diagram of the starting state of the shield machine in the background art.

[0025] In the figure: 1, support; 2, traveling wheel; 3, auxiliary wheel; 4, universal rotating device; 41, base; 42, ball seat; 43, rotating body; 44, connecting shaft; 45, connecting rod; 46, pressing ring; 5, retaining rod; 61, main machine; 62, trolley; 63, station; 64, pipeline; 65, segment; 66, track. Specific embodiments

[0026] The following further describes the present invention with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0027] Embodiment: Referring to FIGS. 1-3, a pipeline 64 extension device for the split start of a shield machine includes a support 1 for receiving the pipeline 64 and a traveling wheel 2 and an auxiliary wheel 3 provided on the support 1. The support 1 is in an overall triangular shape and is welded by H-shaped steel, such a structure makes the overall framework more stable. The pipeline 64 is placed on the support 1, the traveling wheel 2 travels on the track 66 of the shield machine trolley 62, and the auxiliary wheel 3 travels on the inner side surface of the segment 65. In this way, the whole device does not require an additional track 66 and can travel by relying on the existing tunnel conditions. When the shield machine advances forward, the pipeline 64 falls on the support 1 and advances synchronously with the shield machine, avoiding damage to the pipeline 64 being dragged on the ground. One section of this device is provided every 5-10 meters until the split start of the shield machine ends.

[0028] Refer to Figure 2, a universal rotating device 4 is provided between the auxiliary wheel 3 and the bracket 1. The universal rotating device 4 includes a base 41 fixed on the bracket 1, a ball seat 42 located inside the base 41, and a rotating body 43 rotatably connected to the ball seat 42 in a universal manner. The inner hole of the ball seat 42 is provided with a spherical inner cavity, and the outer surface of the rotating body 43 is a spherical arc, so that the rotating body 43 can rotate arbitrarily on the ball seat 42. The rotating body 43 is coaxially provided with a stepped connecting shaft 44, and the connecting shaft 44 protrudes from the rotating body 43 and is fixedly connected to the auxiliary wheel 3. Due to the different inner diameters of the segments 65, the degree of fit between the auxiliary wheel 3 and the segments 65 varies. The universal rotating device 4 enables the auxiliary wheel 3 to be fully fitted with the segments 65, ensuring the stability of walking.

[0029] Reference Figures 2 - 4 , due to a large deviation in the diameter of the segments 65, and at the same time, the sizes of the trolley 62 and the spacing of the tracks 66 of the trolley 62 are different, so there is a great uncertainty in the degree of fit between the auxiliary wheel 3 and the segments 65. In order to ensure the fit between the auxiliary wheel 3 and the segments 65 and the universality of the whole device, a connecting rod 45 is provided between the connecting shaft 44 and the auxiliary wheel 3. The connecting rod 45 is an H-shaped steel, and the length of the connecting rod 45 can be directly measured and cut according to the actual situation on the drawing. The connecting rod 45 is fixedly connected to the connecting shaft 44 and the auxiliary wheel 3 by welding.

[0030] Reference Figure 2 , a boss is provided on the lower surface of the ball seat 42 inside the base 41, and a pressure ring 46 is provided on the upper surface of the ball seat 42. The pressure ring 46 is fixedly connected to the base 41 by bolts. The base 41 is detachably fixed to the bracket 1 by bolts. The bracket 1 is completed by welding ordinary H-shaped steels. The ball seat 42 and the rotating body 43 are machined parts, which are convenient for separate production and processing of the two, and at the same time are convenient for recycling and reuse.

[0031] Reference Figure 2 , a retaining rod 5 for preventing the hanging wire from falling is provided on the bracket 1. The pipeline 64 can be fixed to the bracket 1 by rope tying, or can be limited by the retaining rod 5. The retaining rod 5 is specifically an H-shaped steel and is fixed to the bracket 1 by welding.

[0032] The implementation principle of the above embodiment is: by providing the bracket 1, the walking wheel 2 and the auxiliary wheel 3, the segment 65 is carried to walk, avoiding the pipeline 64 being dragged on the ground. At the same time, the universal rotating device 4 is provided to improve the overall universality, which can not only be reused, but also be used in different working conditions, avoiding waste caused at one time.

[0033] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and deformations can still be made, and these improvements and deformations should also be regarded as the protection scope of the present invention.

Claims

1. A pipeline extension device for the split start of a shield machine, characterized in that: The invention comprises a support (1) for receiving a pipeline (64), and a running wheel (2) and an auxiliary wheel (3) arranged on the support (1); the running wheel (2) is located on a trolley track; the auxiliary wheel (3) is in contact with a pipe segment; a universal rotation device (4) is arranged between the auxiliary wheel (3) and the support (1); the universal rotation device (4) comprises a base (41) fixed on the support (1), a ball seat (42) located in the base (41) and a rotating body (43) universally connected to the ball seat (42); the rotating body (43) is fixedly connected to the auxiliary wheel (3).

2. The pipeline extension device for split-starting shield machine according to claim 1 is characterized in that: The rotating body (43) is coaxially rotatably connected to a connecting shaft (44), and a connecting rod (45) is provided between the connecting shaft (44) and the auxiliary wheel (3).

3. The pipeline extension device for split-starting shield machine according to claim 1 is characterized in that: A boss is provided in the base (41) on the lower surface of the ball seat (42), and a pressure ring (46) is provided on the upper surface of the ball seat (42). The pressure ring (46) is fixedly connected to the base (41) by bolts.

4. The pipeline extension device for split-starting shield machine according to claim 1 is characterized in that: The base (41) is detachably fixed to the bracket (1) via bolts.

5. The pipeline extension device for split-starting shield machine according to claim 1 is characterized in that: The bracket (1) is provided with a stopper rod (5) for preventing the pipeline (64) from falling.

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