Accurate positioning and mounting mechanism of large-diameter vertical shaft heading machine

Abstract

The utility model discloses an accurate positioning and mounting mechanism of a large-diameter vertical shaft heading machine, which comprises a regular polygon frame and support arms, the outer part of each corner of the regular polygon frame is connected with one end of one support arm, and the other end of each support arm is arranged in one clamping groove; the regular polygon frame is located in the center of the vertical shaft, and the clamping groove is formed in a preformed groove of a second lining of the vertical shaft. The positioning device has the advantages that the structure is simple, the mounting position of the heading machine can be accurately positioned before the heading machine enters a field formally, the positioning is simple and convenient, and the construction period is saved; the truss type structure is adopted, the weight is small, the rigidity is large, hoisting can be completed through a small truck crane, and the device can be matched with a to-be-positioned heading machine and can be repeatedly used.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft boring machines, in particular to a precise positioning and installation mechanism for a large-diameter shaft boring machine. Background Technique

[0002] A shaft boring machine includes rock drilling, rock loading, hoisting, mucking, suspension, drainage, ventilation equipment, as well as structures such as a shaft sinking derrick and a working platform. Shaft construction requires the setting of structures such as a sealing plate, a fixed plate, a hanging plate, and a steady rope plate. The sealing plate is the well cover, and its functions are: one is to prevent objects from falling into the well from the wellhead to protect the safety of underground construction workers; the other is to serve as a working platform for lifting personnel, loading and unloading materials, and installing and disassembling various pipelines. A fixed plate is set at a position 4.0 - 6.0 m below the sealing plate for installing a measuring plumb bob car. The hanging plate is a steel structure working plate specially set for shaft lining and protecting the safety of workers at the working face. In China, a double-layer hanging plate is mostly used.

[0003] Due to the large weight, long transportation period, and high requirements for hoisting equipment of a large-diameter boring machine, it is necessary to precisely position the boring machine at the vertical sinking type caisson starting pipe section. If the boring machine is directly used for positioning, it will affect the construction progress of the starting section of the shaft, and the risk of the shaft is high when the boring machine is hoisted in and out. Summary of the Invention

[0004] The purpose of the utility model is to provide a precise positioning and installation mechanism for a large-diameter shaft boring machine according to the deficiencies of the above-mentioned prior art. By positioning the position of the large-diameter shaft boring machine through this precise positioning and installation mechanism, not only can the construction progress of the starting section of the shaft be accelerated, but also the risk of the shaft can be reduced when the boring machine is hoisted in and out.

[0005] The realization of the purpose of the utility model is completed by the following technical solutions:

[0006] A precise positioning and installation mechanism for a large-diameter shaft boring machine includes a regular polygon frame and a support arm. One end of each support arm is connected to the outside of each corner of the regular polygon frame, and the other end of each support arm is arranged in a card slot; the regular polygon frame is located at the center of the shaft, and the card slot is arranged in a reserved slot of the secondary lining of the shaft.

[0007] The regular polygon frame is a regular pentagon frame, and the non-adjacent corners of the regular pentagon frame are connected by a strengthening bracket.

[0008] The regular pentagon frame, the strengthening bracket, and the support arm are all truss structures.

[0009] Multiple support arms are of equal length.

[0010] The connection between the regular polygon frame and the support arm is detachable.

[0011] The advantages of the present utility model are as follows:

[0012] 1. The structure is simple, and it can accurately locate the installation position of the roadheader before the formal entry of the roadheader. The positioning is simple and the construction period is saved.

[0013] 2. It adopts a truss structure, with small weight and large stiffness. A small truck crane can complete the hoisting, and it can be matched with the roadheader to be positioned and reused. Description of the Drawings

[0014] Figure 1 It is a plan view of the precise positioning and installation mechanism of the present utility model;

[0015] Figure 2 It is an elevation view of step one of the precise positioning and installation method of the large-diameter shaft roadheader of the present utility model;

[0016] Figure 3 It is an elevation view of step two of the precise positioning and installation method of the large-diameter shaft roadheader of the present utility model;

[0017] Figure 4 It is an elevation view of step three of the precise positioning and installation method of the large-diameter shaft roadheader of the present utility model;

[0018] Figure 5 It is a plan view of step three of the precise positioning and installation method of the large-diameter shaft roadheader of the present utility model;

[0019] Figure 6 It is an elevation view of step four of the precise positioning and installation method of the large-diameter shaft roadheader of the present utility model;

[0020] Figure 7 It is a plan view of step four of the precise positioning and installation method of the large-diameter shaft roadheader of the present utility model;

[0021] Figure 8 It is an elevation view of step five of the precise positioning and installation method of the large-diameter shaft roadheader of the present utility model;

[0022] Figure 9 It is a plan view of step five of the precise positioning and installation method of the large-diameter shaft roadheader of the present utility model;

[0023] Figure 10 It is an elevation view of step six of the precise positioning and installation method of the large-diameter shaft roadheader of the present utility model;

[0024] Figure 11 It is a plan view of step six of the precise positioning and installation method of the large-diameter shaft roadheader of the present utility model;

[0025] Figure 12This is the elevation schematic diagram of Step 7 of the precise positioning and installation method for the large-diameter shaft tunneling machine of the present utility model;

[0026] Figure 13 This is the plan schematic diagram of Step 7 of the precise positioning and installation method for the large-diameter shaft tunneling machine of the present utility model. Specific embodiments

[0027] The features of the present utility model and other related features will be further described in detail below in conjunction with the accompanying drawings through embodiments for the understanding of those skilled in the same industry:

[0028] As Figures 1 to 13 shown, the marks in the figure are respectively represented as:

[0029] Regular pentagon frame 1, support arm 2, card slot 3, strengthening bracket 4, assembly bracket 5, shaft 6, secondary lining 7, reserved slot 8, cutter head 9, precast segment 10, embedded steel plate 11, tunneling machine 12, slewing drive system 13, support arm 14, tunneling machine recovery system 15.

[0030] Embodiment: As Figures 1 to 13 shown, this embodiment relates to a precise positioning and installation mechanism for a large-diameter shaft tunneling machine, which mainly includes a regular polygon frame and a support arm 2. In this embodiment, the regular polygon frame is a regular pentagon frame 1, and the non-adjacent corners of the regular pentagon frame 1 are connected by a strengthening bracket 4 to improve the overall strength of the regular pentagon frame 1. Of course, according to the actual construction situation, it can also be other regular polygon frames. The outer sides of the five corners of the regular pentagon frame 1 are all connected to one end of a support arm 2, and the other end of each support arm 2 is arranged in a card slot 3. The regular pentagon frame 1 is located at the center of the shaft 6, and the card slot 2 is arranged in the reserved slot 8 of the secondary lining 7 of the shaft 6. The regular pentagon frame 1 is used to simulate the slewing drive system 13 of the tunneling machine 12, and the support arm 2 is used to simulate the support arm 14 of the tunneling machine 12, so as to realize the positioning of the position of the tunneling machine 12. Specifically, the five support arms 2 are of equal length, and the connection between the regular pentagon frame 1 and the support arm 2 is detachable for easy assembly. Moreover, the regular pentagon frame 1, the strengthening bracket 4 and the support arm 2 are all truss structures, and the card slot 3 is a welded steel structure.

[0031] As Figures 1 to 13 shown, this embodiment also has a precise positioning and installation method for a large-diameter shaft tunneling machine, and the method specifically includes the following steps:

[0032] Step 1: As Figure 2 shown, before the tunneling machine 12 leaves the factory, assemble the slewing drive system 13 and the support arm 14 of the tunneling machine 12, and install the card slot 3. Among them, the slewing drive system 13 is placed on the assembly bracket 5 on the ground.

[0033] Step 2: As Figure 3As shown, fix the clamping groove 3, and lift off the slewing drive system 13 and the support arm 14 of the roadheader 12.

[0034] Step 3: As Figure 4 and Figure 5 shown, extend and assemble the support bracket 5, assemble and weld the precise positioning and installation mechanism on the support bracket 5, and precisely position the support arm 2 of the precise positioning and installation mechanism into the clamping groove 3.

[0035] Step 4: As Figure 6 and Figure 7 shown, construct the cutting edge 9 of the construction shaft 6, the precast segments 10 of the first three sections, and the secondary lining 7. The precast segments 10 are arranged above the cutting edge 9, the secondary lining 7 is arranged inside the cutting edge 9 and the precast segments 10, five reserved grooves 8 are provided on the secondary lining 7, and a buried steel plate 11 is provided in the precast segment 10 of the third section. The inner side surface of the buried steel plate 11 is flush with the inner side surface of the precast segment 10 of the third section, and the buried steel plate 11 is located inside the reserved groove 8.

[0036] Step 5: As Figure 8 and Figure 9 shown, use a truck crane to hoist the precise positioning and installation mechanism and the clamping groove 3 into the shaft 6, and adjust the position of the precise positioning and installation mechanism to the center of the shaft 6 through measurement. The support arm 2 (clamping groove 3) of the precise positioning and installation mechanism is located inside the reserved groove 8 of the secondary lining 7.

[0037] Step 6: As Figure 10 and Figure 11 shown, temporarily fix the clamping groove 3, lift off the precise positioning and installation mechanism, and weld the clamping groove 3 to the buried steel plate 11 of the precast segment 10 of the third section.

[0038] Step 7: As Figure 12 and Figure 13 shown, continue to assemble the precast segments 10, install the roadheader recovery system 15, etc. The roadheader spare parts enter the site, are assembled into a complete machine using large hoisting equipment and hoisted into the shaft 6. Water is injected into the shaft 6 and tunneling begins.

[0039] The beneficial technical effects of this embodiment are:

[0040] 1. The structure is simple, the installation position of the roadheader can be precisely positioned before the roadheader officially enters the site, the positioning is simple, and the construction period is saved;

[0041] 2. Adopt a truss structure, with small weight and large stiffness. A small truck crane can complete the hoisting, and it can be matched with the roadheader to be positioned and reused.

[0042] Although the above embodiments have been described in detail with reference to the drawings for the concept and embodiments of the purpose of the present utility model, those of ordinary skill in the art can recognize that various improvements and transformations can still be made to the present utility model without departing from the scope defined by the claims, so they will not be elaborated one by one here.

Claims

1. A precise positioning and installation mechanism for a large-diameter shaft boring machine, characterized in that: It comprises a regular polygonal frame and a support arm, wherein the outside of each corner of the regular polygonal frame is connected to one end of one of the support arms, and the other end of each of the support arms is arranged in a slot; the regular polygonal frame is located at the center of the shaft, and the slot is arranged in a reserved slot of the second lining of the shaft.

2. The precise positioning and installation mechanism for a large diameter shaft boring machine according to claim 1, characterized in that: The regular polygonal frame is a regular pentagonal frame, and non-adjacent corners of the regular pentagonal frame are connected by reinforcing brackets.

3. The precise positioning and installation mechanism for a large diameter shaft boring machine according to claim 2, characterized in that: The regular pentagonal frame, the reinforcement bracket and the support arm are all truss structures.

4. The precise positioning and installation mechanism for a large diameter shaft boring machine according to claim 1, characterized in that: The plurality of arms are of equal length.

5. The precise positioning and installation mechanism for a large diameter shaft boring machine according to claim 1, characterized in that: The regular polygonal frame and the supporting arm are detachably connected.

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