CN113153345A

CN113153345A - Push-driving slag-discharging type pipe joint

Info

Publication number: CN113153345A
Application number: CN202110375923.5A
Authority: CN
Inventors: 谈海强; 张卫华; 封坤; 马洪素; 张海洋; 赵星光
Original assignee: Jiangsu Ruicheng Machinery Co ltd; Beijing Research Institute of Uranium Geology
Current assignee: Jiangsu Ruicheng Machinery Co ltd; Beijing Research Institute of Uranium Geology
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2021-07-23

Abstract

The invention relates to the technical field of tunnel excavation construction equipment, in particular to a push-press excavation slag-discharge type pipe joint, which provides an unprecedented pipe joint which can be applied to vertical excavation equipment and is used for propelling an excavation head, wherein the pipe joint is provided with an annular cylindrical shell, the upper circumference of the upper end surface of the shell is provided with at least two grooves extending downwards in equal intervals, a lifting lug which extends downwards and can be embedded into a groove arranged on the other pipe joint is arranged on the lower end surface of the shell corresponding to the lower part of the groove, two opposite side walls of the groove on the shell are provided with coaxial first column pin holes, and the lifting lug is provided with a second column pin hole corresponding to the first column pin hole of the pipe joint when the lifting lug is embedded into the groove of the other pipe joint; a slag discharge pipe which has the same axial direction as the shell is arranged in the shell, and an axial rotation stopping groove for circumferentially positioning the pipe joint on the rack of the development machine is arranged on the outer wall of the shell; and a wire trough for leading out a pipeline for controlling a main cutter of the heading machine in an axial direction is also arranged on the outer wall of the shell.

Description

Push-driving slag-discharging type pipe joint

Technical Field

The invention relates to the technical field of tunnel tunneling construction equipment, in particular to a push-pressing tunneling slag-discharging type pipe joint.

Background

High-level radioactive waste (high-level radioactive waste for short) has the characteristics of strong radioactivity, high toxicity and long half-life period, and the difficulty in final safe disposal of the high-level radioactive waste is very high, so that a series of scientific, technical and engineering challenges are faced. Whether the high-level waste can be finally and safely disposed is a strategic subject related to the sustainable development of the nuclear industry and the environmental protection; at present, the international widely accepted technically feasible way of finally disposing high-level waste is deep geological disposal, namely, the high-level waste is buried in a stable geological body with the depth ranging from 500m to 1000 m; such objects requiring deep geological treatment include: high-level glass solidification, other types of high-level solid waste, alpha solid waste, heavy water reactor spent fuel, high temperature gas cooled reactor spent fuel, and other spent fuels; it is a better solution to set up a special disposal library in the unmanned area, and vertical disposal of the disposal object is better than horizontal disposal.

The disposal warehouse comprises a horizontal channel and disposal pits vertically downward on the channel, the size of one possible disposal pit is 1.4m in diameter and 10m in depth, from the viewpoint of long-term safety and stability of the disposal warehouse, the disposal pit requires high dimensional accuracy of a cave and small damage of surrounding rock excavation, the drilling and blasting method is difficult to control the tunneling precision and cause overlarge damage to surrounding rocks, so that the excavation requirement of a disposal pit is difficult to meet, therefore, the mechanical excavation method is generally adopted internationally for pit construction, and currently, granite excavation equipment is developed in Finland and Sweden, but the equipment has the problems of low excavation efficiency, poor slag discharging effect and the like, the equipment design and application are immature on the whole, the construction space of the disposal pit is limited, the surrounding rock strength is high, therefore, high requirements are provided for the compact design, efficient rock breaking, efficient slag tapping, rapid assembly, movement and other performances of the equipment, and the excavation requirements of the disposal pit can be met by no formed rock breaking machine at present.

The excavation equipment for treating the pit can use the excavation principle of a tunnel shield machine, but the horizontal excavation is changed into the vertical excavation, except the aspect that the cutter head is locally similar to the cutter head of a common tunnel shield machine, the structure requirements of the rest parts of the excavation equipment are completely different, a vertical excavation mode also needs to use pipe joints, but the pipe joints used for vertical excavation are almost completely different from the pipe joints used for horizontal excavation in action and structure, and the pipe joints used for the vertical excavation machine are not disclosed at present.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: a pipe joint suitable for use in vertical tunnelling equipment is provided.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a bulldoze and tunnel and arrange sediment formula coupling, has annular cylinder casing, circumference partition is provided with two at least downwardly extending recesses on the up end of casing, corresponding to the below of recess, be equipped with the lug that stretches out downwards and can inlay the recess that establishes on another coupling on the lower terminal surface of casing, be equipped with coaxial first column pinhole on the two relative lateral walls of recess on the casing, be equipped with the second column pinhole that corresponds with the first column pinhole of this coupling when the lug imbeds another coupling recess on the lug.

The pipe joint of above-mentioned scheme is used for satisfying one kind and relies on promoting the pipe joint downwards and promote the vertical tunnelling equipment that the tunnelling head tunneled again, and on the pipe joint need continue to stack the tunnelling head, when the tunnelling head upwards withdraws from, the pipe joint need be separated the transfer in succession again, and the pipe joint passes through recess and lug and adds the pin and connects, and the pin uses to make the pipe joint connect with the separation process operation is convenient fast.

In order to facilitate the operation of the pipe joints by workers during connection and separation, the axes of the first pin hole and the second pin hole are perpendicular to the circumferential diameter line of the shell.

For the snatching of tube coupling convenient and to first cylindric lock hole processing convenience, be equipped with flat bottom groove on the casing outer wall, the drill way of first cylindric lock hole outside is located the tank bottom of flat bottom groove, the tank bottom is perpendicular with first cylindric lock hole axis. The groove bottom is parallel to the diameter line of the pipe joint, so that the manipulator can draw the pipe joint inward along the groove bottom to clamp the pipe joint.

The design sets up the slag discharge passage of tunnelling equipment in the tube coupling to be the mode of vacuum slag absorption, be equipped with the scum pipe the same with casing axial direction in the casing, the scum pipe both ends are the structure that can seal each other that the scum pipe keeps airtight connection when two tube couplings link to each other.

The slag discharging pipe is characterized in that the slag discharging pipe is connected reliably for processing convenience and convenient connection between pipe joints, and the pipe joints are arranged on the pipe joints, the axis of the slag discharging pipe is consistent with the axis of the shell, and a connecting rib is arranged between the outer wall of the slag discharging pipe and the inner wall of the shell.

Due to the reaction force of the rotary tunneling head, the pipe joint needs to transmit the rotary torque to the rack, and the outer wall of the shell is provided with an axial rotation stopping groove for circumferentially positioning the pipe joint on the rack of the tunneling machine.

Because the pipe joints are overlapped and detached, and the tunneling head at the lowest end is provided with pipelines which are required to be connected with an external power and control device and can comprise electric wires, signal wires, oil pipes and air pipes, the outer wall of the shell is also provided with an axial routing groove for leading out the pipeline for controlling the main cutter of the tunneling machine, and the notch of the routing groove is provided with a detachable protective cover.

The invention has the beneficial effects that: the push-push tunneling slag-discharging type pipe joint provided by the invention is an important part used repeatedly by a tunneling machine, downward force can be transmitted to a tunneling head through the pipe joint, the pipe joint is convenient to connect and can better transmit torque by using a lifting lug, the lifting lug can also play a role in positioning in the pipe joint transferring process, and the flat bottom groove is beneficial to plugging and unplugging of a connecting pin and can also be used as a grabbing part of the pipe joint; the torque of the tunneling head can be transmitted to the rack only by arranging the simple protruding part on the rack and combining the rotation stopping groove of the pipe joint, and the pipe joint is also provided with a slag discharging pipe so as to have a slag discharging function.

Drawings

FIG. 1 is a perspective view of a pipe section of the present invention;

FIG. 2 is a cross-sectional view of a pipe section of the present invention taken along an axis;

figure 3 is a top view of a pipe section of the present invention.

In the figure, the slag discharging device comprises a shell 1, a shell 2, a groove 3, a lifting lug 4, a first pin hole 5, a second pin hole 6, a flat bottom groove 7, a slag discharging pipe 8, a connecting rib 9, a rotation stopping groove 10, a wiring groove 11 and a protective cover.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The push-pushing tunneling slag-discharging type pipe joint combining the attached

drawings

1, 2 and 3 is provided with an annular cylindrical shell 1, two grooves 2 extending downwards are arranged on the upper end face of the shell 1 in an equally-divided mode at the periphery, two lifting lugs 3 which extend downwards and can be embedded into the grooves on the other pipe joint are arranged on the lower end face of the shell 1 corresponding to the positions below the grooves 2, coaxial first cylindrical pin holes 4 are arranged on two opposite side walls of the grooves 2 on the shell 1, and second cylindrical pin holes 5 corresponding to the first cylindrical pin holes of the pipe joint when the lifting lugs 3 are embedded into the grooves of the other pipe joint are arranged on the lifting lugs 3. The lifting lug can be used as a guide block when the pipe joint is transferred, and the state of the pipe joint is unchanged when the pipe joint is transferred by combining the guide groove.

The axes of the first pin hole 4 and the second pin hole 5 are both perpendicular to a circumferential diameter line of the housing 1, which is a diameter line of one of the diameter lines of the housing 1 that can intersect the pin hole axis perpendicularly.

The outer wall of the shell 1 is provided with a flat bottom groove 6, the hole opening outside the first pin hole 4 is positioned on the groove bottom of the flat bottom groove 6, and the groove bottom is vertical to the axis of the first pin hole 4. The pipe joint can be transferred in various ways, such as moving on a slide rail or grabbing and moving by using a manipulator, the flat bottom groove 6 can be used as a clamping part during grabbing, and the manipulator can extend into the flat bottom groove 6 to grab the pipe joint.

A slag discharging pipe 7 which is the same as the shell 1 in the axial direction is arranged in the shell 1, two ends of the slag discharging pipe 7 are of a mutually sealed structure which keeps the slag discharging pipe in a sealed connection when the two pipe sections are connected up and down, two ends can be provided with a replaceable rubber sealing ring meshed with each other in a conical surface manner, one rubber ring is provided with a convex conical table surface, and the other rubber ring is provided with an inwards concave conical table surface; the axis of the slag discharging pipe 7 is consistent with the axis of the shell 1, and a connecting rib 8 is arranged between the outer wall of the slag discharging pipe 7 and the inner wall of the shell 1.

The outer wall of the shell 1 is provided with axial rotation stopping grooves 9 which are used for circumferentially positioning the pipe joints on the rack of the heading machine, and the rotation stopping grooves 9 are 4 in number distributed on the circumference.

The outer wall of the shell 1 is also provided with an axial wiring groove 10 for leading out a pipeline for controlling a main cutter of the heading machine, and a detachable protective cover 11 is arranged on a notch of the wiring groove 10.

The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and application ranges, for example, the lifting lug is disposed on the upper end face and the groove is disposed on the lower end face, so that, in view of the above, the content of the present specification should not be construed as limiting the present invention.

Claims

1. A push-pressing tunneling slag-discharging type pipe joint is characterized in that: the pipe joint is provided with an annular cylindrical shell (1), at least two grooves (2) extending downwards are arranged on the upper end face of the shell (1) in an equally-divided mode on the circumference, lifting lugs (3) which extend downwards and can be embedded into the grooves on the other pipe joint are arranged on the lower end face of the shell (1) and correspond to the positions below the grooves (2), first cylindrical pin holes (4) which are coaxial are formed in two opposite side walls of the grooves (2) on the shell (1), and second cylindrical pin holes (5) which correspond to the first cylindrical pin holes of the pipe joint when the lifting lugs (3) are embedded into the grooves of the other pipe joint are formed in the lifting lugs (3).

2. The push-driving slag discharge type pipe joint according to claim 1, wherein: the axis of the first column pin hole (4) and the axis of the second column pin hole (5) are perpendicular to the circumferential diameter line of the shell (1).

3. The push-driving slag discharge type pipe joint according to claim 1, wherein: be equipped with flat bottom groove (6) on casing (1) outer wall, the drill way of first cylindric lock hole (4) outside is located the tank bottom of flat bottom groove (6), the tank bottom is perpendicular with first cylindric lock hole (4) axis.

4. The push-driving slag discharge type pipe joint according to claim 1, wherein: be equipped with in casing (1) and arrange sediment pipe (7) the same with casing (1) axial direction, arrange sediment pipe (7) both ends and be the structure that can seal each other that row sediment pipe kept sealing connection when two tube couplings link to each other from top to bottom.

5. The push tunneling slag discharge type pipe joint according to claim 4, wherein: the axis of the slag discharging pipe (7) is consistent with the axis of the shell (1), and a connecting rib (8) is arranged between the outer wall of the slag discharging pipe (7) and the inner wall of the shell (1).

6. The push-driving slag discharge type pipe joint according to claim 1, wherein: and the outer wall of the shell (1) is provided with an axial rotation stopping groove (9) for circumferentially positioning the pipe joint on the rack of the heading machine.

7. The push-driving slag discharge type pipe joint according to claim 1, wherein: the outer wall of the shell (1) is further provided with an axial wiring groove (10) for leading out a pipeline for controlling a main cutter of the heading machine, and a detachable protective cover (11) is arranged on a notch of the wiring groove (10).