Sunken vertical shaft heading machine with protection function

Abstract

The sinking type vertical shaft heading machine with the protection function comprises a machine body, a supporting shoe beam, a cutting head, a supporting ring and a protection net, the inclined strut is connected to the side wall of the end, close to a supporting shoe, of the supporting shoe beam, the inclined strut extends in the direction of the shaft wall of a vertical shaft, the end, away from the supporting shoe beam, of the inclined strut is spaced from the supporting shoe, the action of the supporting shoe cannot be interfered, and the working efficiency of the vertical shaft heading machine is improved. The supporting ring is composed of a plurality of supporting arc sections, the ends of the supporting arc sections are connected and supported on the ends, away from the supporting shoe beam, of the inclined struts, the protective net is in a fan shape, and the protective net is located in the space defined by the outer wall of the machine body, the side wall of the supporting shoe beam and the inner walls of the supporting arc sections and connected with the outer wall of the machine body, the side wall of the supporting shoe beam and the inner walls of the supporting arc sections. During construction, foreign matters can be prevented from falling into the sinking type vertical shaft heading machine through the protective net, so that the equipment safety of the sinking type vertical shaft heading machine is guaranteed, even if an extreme condition that constructors fall into a vertical shaft occurs, the constructors can be buffered and blocked through the protective net and are prevented from being in contact with a cutting head, and the safety is better.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical shaft construction equipment, in particular to a sinking vertical shaft boring machine with a protective function. Background Art

[0002] In urban construction, there is a strong demand for large-diameter vertical shafts with a depth of about 100 meters. For example, subway shafts, storage shafts, underground parking garages, etc. all need to dig such shafts. As a shaft excavation device, the sunken shaft boring machine has the advantages of safety and efficiency, and is widely used in the excavation of such shafts.

[0003] Most of the existing sinking shaft boring machines use a cutting head to cut the soil, and then use the mud pump installed on the back of the cutting head to circulate the mud and discharge the slag, and finally use the synchronous prefabricated pipe segments to assemble for support. During construction, the machine body with the cutting head installed sinks together with the pipe segments to achieve excavation. However, this type of sinking shaft boring machine has no protective parts on the machine body and does not have a protective function. During the construction process, bolts, washers, nuts, wrenches, welding rods, steel plates, concrete, steel bar heads, profiles, etc. are easily caught on the machine body. In the case of components falling under the machine body, once they fall, such metal components or hard components cannot be broken by the cutting head, nor can they be discharged through the mud pump, which can easily cause damage to the cutting teeth of the cutting head. In serious cases, it may also cause the cutting head drive unit to get stuck and the mud pump to be damaged, affecting the equipment safety of the sunken vertical shaft boring machine. At the same time, the unfinished shaft entrance is open, and people are also at risk of falling into the shaft when working near or above the shaft entrance. Once they fall, they will face the high-speed rotating teeth on the cutting head, which poses a great safety hazard. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a sinking vertical shaft boring machine with a protective function.

[0005] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is a sunken vertical shaft boring machine with a protective function, comprising:

[0006] a machine body, said machine body being located at the center of the shaft;

[0007] A shoe support beam, one end of which is connected to the side wall of the machine body, and the other end of which is connected to a shoe support for pressing against a pipe segment or a shaft wall, and there are multiple shoe support beams, which are evenly distributed along the center line of the shaft;

[0008] A cutting head, one end of which is rotatably connected to the bottom of the machine body, and the other end of which extends obliquely downward and is provided with rotatable cutting teeth;

[0009] The end side wall of the shoe support beam close to the shoe support is connected with an oblique support, the oblique support extends toward the shaft wall, and the end of the oblique support away from the shoe support beam is spaced from the shoe support;

[0010] The sunken vertical shaft boring machine with protective function also includes a support ring and a protective net. The support ring is composed of a plurality of support arc segments. The ends of the support arc segments are connected to and supported on the ends of the oblique supports away from the support shoe beams. The protective net is fan-shaped. The protective net is located in a space surrounded by the outer wall of the machine body, the side walls of the support shoe beams, and the inner walls of the support arc segments, and is connected to the outer wall of the machine body, the side walls of the support shoe beams, and the inner walls of the support arc segments.

[0011] Preferably, the angle between the extension direction of the diagonal brace and the extension direction of the shoe beam is 20-40°.

[0012] Preferably, the upper end surface of the supporting arc segment is not lower than the upper end surface of the support shoe beam.

[0013] Further preferably, each of the supporting arc segments is connected to a rubber plate extending upward and outwardly obliquely, and an outer edge of the rubber plate is in contact with the shaft wall of the vertical shaft.

[0014] Further preferably, the rubber sheet is composed of a plurality of rubber sheet segments, the back side of each of the rubber sheet segments is connected to a plurality of support strips extending downward, and the lower ends of the support strips are welded to the outer wall of the support arc segment.

[0015] Preferably, the end of the diagonal brace away from the support shoe beam is connected to a first flange plate extending in the horizontal direction, and the end of the support arc segment is connected to a second flange plate extending in the horizontal direction, and the first flange plate and the second flange plate are locked by through bolts.

[0016] Further preferably, the sunken vertical shaft boring machine with protective function also includes an auxiliary support rod, one end of the auxiliary support rod is connected to the outer wall of the machine body, and the other end extends toward the wall of the vertical shaft, there are multiple auxiliary support rods and they are arranged at intervals with the support shoe beam, and the middle part of the protective net is supported on the upper end surface of the auxiliary support rod.

[0017] Further preferably, the two ends of the supporting arc segment are respectively overlapped on the auxiliary support rod and the diagonal support, and the end of the auxiliary support rod close to the shaft wall is provided with a third flange plate extending in the horizontal direction, and the third flange plate is also locked with the first flange plate by through bolts.

[0018] Preferably, one end of the supporting arc segment is connected to a pin extending vertically upward, and the other end is connected to a plug plate, and the plug plate is provided with a socket matching the pin, and in two adjacent supporting arc segments, the pin of one supporting arc segment is inserted into the socket of the other supporting arc segment.

[0019] Preferably, the protection net located at the angle between the support shoe beam and the support arc segment is spaced apart from the support shoe.

[0020] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0021] The utility model provides a sunken vertical shaft boring machine with a protective function, comprising a machine body, a support shoe beam, a cutting head, a support ring and a protective net, wherein an oblique support is connected to the side wall of the end of the support shoe beam close to the support shoe so that the oblique support is extended toward the wall of the vertical shaft, and the end of the oblique support away from the support shoe beam is spaced from the support shoe and will not interfere with the movement of the support shoe; the support ring is composed of a plurality of support arc segments, and the ends of the support arc segments are connected and supported on the ends of the oblique support away from the support shoe beam, so that the protective net is fan-shaped, and the protective net is located in a space surrounded by the outer wall of the machine body, the side wall of the support shoe beam, and the inner wall of the support arc segment, and is connected to the outer wall of the machine body, the side wall of the support shoe beam, and the inner wall of the support arc segment; during construction, the protective net can be used to prevent foreign objects from falling into, thereby ensuring the equipment safety of the sunken vertical shaft boring machine; even in the extreme case of construction personnel falling into the vertical shaft, the protective net can be used to buffer and block them to prevent them from contacting the cutting head, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a top view schematic diagram of a preferred embodiment of the present invention.

[0023] Figure 2 yes Figure 1 A partial enlarged schematic diagram of the middle protective net.

[0024] Figure 3 yes Figure 1 A three-dimensional schematic diagram of the vehicle. For ease of observation, the protective net is hidden.

[0025] Figure 4 , Figure 5 yes Figure 3 A three-dimensional enlarged schematic diagram of the middle support ring segment and auxiliary support rod.

[0026] Figure 6 yes Figure 4 A local enlarged schematic diagram of point A in the middle.

[0027] Figure 7 yes Figure 4 A local enlarged schematic diagram of point B in the middle.

[0028] Figure 8 yes Figure 5 A partial enlarged schematic diagram of point C in the middle.

[0029] Among them: 10. body; 20. support shoe beam; 21. support shoe; 22. diagonal support; 221. first flange plate; 30. cutting head; 31. cutting tooth; 41. supporting arc segment; 411. second flange plate; 412. latch; 413. plug plate; 414. plug hole; 42. rubber sheet; 43. rubber sheet segment; 44. support bar; 50. protective net; 60. auxiliary support rod; 601. third flange plate. DETAILED DESCRIPTION

[0030] like Figures 1 to 8 As shown, the utility model provides a sunken shaft boring machine with protective function, comprising: a machine body 10, a shoe beam 20, a cutting head 30, a support ring, and a protective net 50, wherein the machine body 10 is located in the center of the shaft; the shoe beam 20 extends in the radial direction of the shaft, one end of the shoe beam 20 is connected to the side wall of the machine body 10, and the other end is connected to a shoe 21 for pressing against a pipe segment or a shaft wall, there are multiple shoe beams 20, and the multiple shoe beams 20 are evenly distributed along the center line of the shaft, and the end side wall of the shoe beam 20 close to the shoe 21 is connected to an oblique support 22, and the oblique support 22 extends toward the shaft wall, and the end of the oblique support 22 away from the shoe beam 20 is connected to the shoe 21. spaced apart; one end of the cutting head 30 is rotatably connected to the bottom of the machine body 10, and the other end extends obliquely downward and is provided with a rotatable cutting tooth 31; the support ring is composed of a plurality of support arc segments 41, and the ends of the support arc segments 41 are connected to and supported on the ends of the diagonal braces 22 away from the support shoe beam 20, and the protective net 50 is basically fan-shaped and has multiple pieces, each piece of the protective net 50 is located in the space surrounded by the outer wall of the machine body 10, the side wall of the support shoe beam 20, and the inner wall of the support arc segment 41, and is connected to the outer wall of the machine body 10, the side wall of the support shoe beam 20, and the inner wall of the support arc segment 41, and the protective net 50 located at the angle between the support shoe beam 20 and the support arc segment 41 is spaced apart from the support shoe 21.

[0031] The advantages of this setting are:

[0032] 1. It will not interfere with the movement of the shoe.

[0033] 2. During construction, the protective net can prevent foreign objects from falling in, thereby ensuring the equipment safety of the sunken shaft boring machine.

[0034] 3. Even in the extreme case that construction workers fall into the shaft, the protective net can be used to buffer and block them, preventing them from contacting the cutting head, which is safer.

[0035] Preferably, the angle between the extension direction of the diagonal brace 22 and the extension direction of the shoe beam 20 is 20-40°. In this embodiment, the angle is 30°.

[0036] Preferably, the upper end surface of the supporting arc segment 41 is not lower than the upper end surface of the shoe support beam 20 . In this embodiment, the upper end surface of the supporting arc segment 41 is flush with the upper end surface of the shoe support beam 20 .

[0037] Furthermore, each supporting arc segment 41 is connected to a rubber plate 42 extending upward and outwardly, and the outer edge of the rubber plate 42 contacts the wall of the shaft. When the machine body 10 is hoisted in and out, the support shoe 21 needs to be separated from the pipe segment or the wall of the shaft. At this time, the stability of the machine body 10 when hoisted in and out can be enhanced by the contact of the outer edge of the rubber plate 42.

[0038] For ease of arrangement, in this embodiment, the rubber sheet 42 is composed of a plurality of rubber sheet segments 43 , and the back of each rubber sheet segment 43 is connected to a plurality of support bars 44 extending downward, and the lower end of the support bar 44 is welded to the outer wall of the support arc segment 41 .

[0039] To facilitate the fixation of the support arc segment 41, in this embodiment, the end of the diagonal support 22 away from the support shoe beam 20 is connected to a first flange plate 221 extending in the horizontal direction, and the end of the support arc segment 41 is connected to a second flange plate 411 extending in the horizontal direction. The first flange plate 221 and the second flange plate 411 are locked together by through bolts.

[0040] In order to enhance the supporting effect of the protective net 50, in the present embodiment, the sunken vertical shaft boring machine with protective function also includes an auxiliary support rod 60, one end of which is connected to the outer wall of the machine body 10, and the other end extends toward the shaft wall along the radial direction of the shaft. There are multiple auxiliary support rods 60, which are spaced apart from the support shoe beam 20, and the middle part of the protective net 50 is supported on the upper end surface of the auxiliary support rod 60.

[0041] Furthermore, the two ends of the supporting arc segment 41 are respectively overlapped on the auxiliary support rod 60 and the diagonal support 22. The end of the auxiliary support rod 60 close to the shaft wall is provided with a third flange plate 601 extending in the horizontal direction. The third flange plate 601 and the first flange plate 221 are also locked by through bolts.

[0042] To facilitate alignment, in the present embodiment, one end of the support arc segment 41 is connected to a pin 412 extending vertically upward, and the other end is connected to a plug plate 413, on which a socket 414 matching the pin 412 is provided. In two adjacent support arc segments 41, the pin 412 of one support arc segment 41 is inserted into the socket 414 of the other support arc segment 41.

[0043] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly. They cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A sunken shaft boring machine with protective function, comprising: a machine body, said machine body being located at the center of the shaft; A shoe support beam, one end of which is connected to the side wall of the machine body, and the other end of which is connected to a shoe support for pressing against a pipe segment or a shaft wall, and there are multiple shoe support beams, which are evenly distributed along the center line of the shaft; A cutting head, one end of which is rotatably connected to the bottom of the machine body, and the other end of which extends obliquely downward and is provided with rotatable cutting teeth; Features: The end side wall of the shoe support beam close to the shoe support is connected with an oblique support, the oblique support extends toward the shaft wall, and the end of the oblique support away from the shoe support beam is spaced from the shoe support; The sunken vertical shaft boring machine with protective function also includes a support ring and a protective net. The support ring is composed of a plurality of support arc segments. The ends of the support arc segments are connected to and supported on the ends of the oblique supports away from the support shoe beams. The protective net is fan-shaped. The protective net is located in a space surrounded by the outer wall of the machine body, the side walls of the support shoe beams, and the inner walls of the support arc segments, and is connected to the outer wall of the machine body, the side walls of the support shoe beams, and the inner walls of the support arc segments.

2. The sunken shaft boring machine with protective function according to claim 1, characterized in that: The included angle between the extending direction of the diagonal brace and the extending direction of the brace shoe beam is 20-40°.

3. The sunken shaft boring machine with protective function according to claim 1, characterized in that: The upper end surface of the supporting arc segment is not lower than the upper end surface of the support shoe beam.

4. The sunken shaft boring machine with protective function according to claim 3, characterized in that: Each of the supporting arc segments is connected with a rubber plate extending upward and outwardly obliquely, and the outer edge of the rubber plate contacts the wall of the vertical shaft.

5. The sunken shaft boring machine with protective function according to claim 4, characterized in that: The rubber sheet is composed of a plurality of rubber sheet segments, and the back of each rubber sheet segment is connected with a plurality of support strips extending downward, and the lower end of the support strips is welded to the outer wall of the support arc segment.

6. The sunken shaft boring machine with protective function according to claim 1, characterized in that: The end of the diagonal brace away from the support shoe beam is connected to a first flange plate extending in the horizontal direction, and the end of the support arc segment is connected to a second flange plate extending in the horizontal direction. The first flange plate and the second flange plate are locked by through bolts.

7. The sunken shaft boring machine with protective function according to claim 6, characterized in that: The sunken vertical shaft boring machine with protective function also includes an auxiliary support rod, one end of which is connected to the outer wall of the machine body, and the other end extends toward the wall of the vertical shaft. There are multiple auxiliary support rods and they are arranged at intervals from the support shoe beam. The middle part of the protective net is supported on the upper end surface of the auxiliary support rod.

8. The sunken shaft boring machine with protective function according to claim 7, characterized in that: The two ends of the supporting arc segment are respectively overlapped on the auxiliary support rod and the diagonal support. The end of the auxiliary support rod close to the shaft wall is provided with a third flange plate extending in the horizontal direction. The third flange plate and the first flange plate are also locked by through bolts.

9. The sunken shaft boring machine with protective function according to claim 1, characterized in that: One end of the support arc segment is connected to a pin extending vertically upward, and the other end is connected to a plug plate, and the plug plate is provided with a socket matching the pin. In two adjacent support arc segments, the pin of one support arc segment is inserted into the socket of the other support arc segment.

10. The sunken shaft boring machine with protective function according to claim 1, characterized in that: The protection net located at the angle between the support shoe beam and the support arc segment is spaced apart from the support shoe.

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