CN210137460U

CN210137460U - Sealed quick-change electric heating device and tunnel drilling and blasting construction equipment

Info

Publication number: CN210137460U
Application number: CN201920513709.XU
Authority: CN
Inventors: 刘永磊; 李冰涛; 付文清
Original assignee: Railway Engineering Equipment Group Tunnel Equipment Manufacturing Co Ltd
Current assignee: Railway Engineering Equipment Group Tunnel Equipment Manufacturing Co Ltd
Priority date: 2019-04-16
Filing date: 2019-04-16
Publication date: 2020-03-10
Anticipated expiration: 2029-04-16

Abstract

The utility model belongs to the technical field of tunnel drilling explosion excavation construction, in particular to a sealed quick-change electric heating device, mainly for providing a sealed quick-change electric heating device, when the liquid storage tank heating pipe breaks down, the operation process of unloading and replacing the heating pipe body can be directly and efficiently realized, the sealed quick-change electric heating device comprises a heating pipe and an electric heating unit body connected with the heating pipe, a transition connecting block is arranged at the transition connecting part between the heating pipe and the electric heating unit body, a sealing shell is arranged outside the heating pipe, and a shell connecting flange is fixedly welded on the sealing shell; still be provided with the liquid circulation mouth on seal housing, be provided with at the front end of seal housing internal heating pipe and proclaim oneself the formula connecting block, proclaim oneself the formula connecting block and be connected with seal housing through elastic connecting piece, this novel structural design's a sealed quick change formula electric heater unit, the effectual operating efficiency who improves equipment operation in-process.

Description

Sealed quick-change electric heating device and tunnel drilling and blasting construction equipment

Technical Field

The utility model belongs to the technical field of tunnel drilling and blasting excavation construction; in particular to a sealed quick-change electric heating device and tunnel drilling and blasting construction equipment.

Background

The tunnel drilling and blasting construction is totally called 'drilling and blasting construction', and mainly refers to a construction method for breaking rock mass and opening caverns by using an explosive blasting mode; the method is effectively used in most railway tunnel engineering in China; the tunnel drilling and blasting construction is usually called as a 'mine method' in engineering practice because the tunnel drilling and blasting construction is used in mine roadway engineering for the earliest time and for a long time; in the process of excavation construction by a tunnel drilling and blasting method, drilling holes are included; charging and blasting; ventilating; necessary construction support; the method comprises the following main processes of deslagging, clearing away a field and the like, wherein in the process of tunnel drilling and blasting construction, construction mechanical equipment such as a concrete wet spraying machine, a three-arm drilling trolley, a cantilever tunneling machine and the like is generally used, and in the use process of excavating hydraulic mechanical equipment by the concrete wet spraying machine or the tunnel drilling and blasting method, particularly in a hydraulic system and a fluid system of excavating hydraulic mechanical equipment by the tunnel drilling and blasting method, various liquid storage boxes suitable for heating occasions, such as a hydraulic oil tank, a lubricating liquid box and the like, are generally arranged; liquid in the liquid storage tank body is heated and then applied to the operation process of equipment of tunnel drilling and blasting excavation mechanical equipment, however, most of the existing heating pipes are fixed to the wall of the liquid storage tank body through threads or flanges, so that the heating pipes are in direct contact with oil, and the heating pipes generate heat after being electrified, so that the heating mode of the temperature of the oil is quickly improved; however, when the heating pipe is failed and needs to be replaced in time in the heating mode of adopting the connection and heating of the heating pipe and the liquid storage box body, the liquid to be heated in the liquid storage box body is generally emptied completely, and then the heating pipe can be unloaded and replaced, so that the labor intensity of workers is greatly improved, the normal use of equipment is influenced, and certain resource waste is caused.

Disclosure of Invention

The utility model discloses an inventive purpose:

the sealing quick-change electric heating device and the tunnel drilling and blasting construction equipment are mainly used for effectively achieving the operation process that when a heating pipe of a liquid storage box body of the tunnel drilling and blasting excavation mechanical equipment fails, the heating pipe body can be directly and efficiently unloaded and replaced, the operation efficiency of the tunnel drilling and blasting excavation mechanical equipment in the operation process is effectively improved, the labor intensity of workers in the maintenance and replacement process is effectively reduced, the maintenance and replacement cost of the equipment is effectively reduced, and the economic benefit of enterprises is effectively improved.

The technical scheme of the utility model is that:

the sealing quick-change electric heating device comprises a heating pipe and an electric heating unit body connected with the heating pipe, wherein a transition connecting block is arranged at the transition connecting position between the heating pipe and the electric heating unit body, a sealing shell is arranged outside the heating pipe, and a shell connecting flange is fixedly welded on the sealing shell; the transition connecting block is connected with the sealing shell through a connecting and sealing device; a liquid circulation port is also arranged at the position, corresponding to the front end of the heating pipe, on the sealing shell, a self-sealing connecting block is arranged at the front end of the heating pipe in the sealing shell, and the self-sealing connecting block is connected with the end surface of the inner side of the sealing shell through an elastic connecting piece.

The connecting boss body is arranged at the position of the end face of the sealing shell connected with the transition connecting block, and the transition connecting block is tightly connected with the connecting boss body through a locking screw.

And a sealing rubber pad is also arranged between the transition connecting block and the sealing shell.

The self-sealing connecting block adopts a rectangular self-sealing structure.

The self-sealing connecting block is of an arch self-sealing structure, and two symmetrical side wing sealing blocks are transitionally arranged at two ends of the self-sealing connecting block.

And a rubber sealing layer is arranged at the outer end of the self-sealing connecting block.

The two end parts of the self-sealing connecting block are in transition fit with the inner wall of the sealing shell.

The elastic connecting piece adopts a conical spring.

And limit stops which are symmetrically arranged with each other are arranged at the rear end position of the liquid circulation port in the sealed shell.

The tunnel drilling and blasting construction equipment comprises the sealed quick-change electric heating device.

The utility model has the advantages that:

this novel structural design's a sealed quick change formula electric heating device and tunnel bore and explode construction equipment, not only effectual realized tunnel bore and explode method excavation mechanical equipment when stock solution tank heating pipe breaks down, can direct efficient will heat the operation process that the body uninstallation was changed, the effectual operating efficiency that improves tunnel bore and explode method excavation mechanical equipment in the operation process, and the effectual intensity of labour who reduces the workman in the maintenance change in-process, the effectual maintenance change cost that reduces equipment, the effectual economic benefits who improves the enterprise.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is the structural schematic diagram of the self-sealing connecting block of the present invention adopting an arch-shaped self-sealing structure.

In the figure; 1 is a heating pipe; 2 is an electric heating unit body; 3 is a transition connecting block; 4 is a sealed shell; 5 is a shell connecting flange; 6 is a connecting sealing device; 7 is a liquid circulation port; 8 is a self-sealing connecting block; 9 is an elastic connecting piece; 10 is a connecting boss body; 11 is a locking screw; 12 is a sealing rubber pad; 13 is a side wing sealing block; and 14 is a limit stop.

Detailed Description

The following detailed description of embodiments of the present invention is made with reference to the accompanying drawings.

As shown in fig. 1-2, a sealed quick-change electric heating device is provided, which includes a heating pipe 1 and an electric heating unit body 2 connected with the heating pipe, a transition connection block 3 is arranged at a transition connection position between the heating pipe and the electric heating unit body, and in a heating process of a liquid storage tank body of shield equipment, most of the heating methods adopt an electric heating pipe for heating by electrifying, wherein the electric heating unit body is directly connected with a direct current or alternating current power supply, and the heating pipe is heated by the electric heating method; a sealing shell 4 is arranged outside the heating pipe, a shell connecting flange 5 is fixedly welded on the sealing shell, and the arranged shell connecting flange structure can effectively and directly mount and connect the sealing quick-change electric heating device with the liquid storage tank body, so that the heating pipe wrapped by the sealing shell is directly inserted into the liquid storage tank body; the transition connecting block arranged at the transition connection position between the heating pipe and the electric heating unit body is directly connected with the sealing shell through the connecting and sealing device 6, and the connecting and sealing device can effectively realize the quick dismounting and mounting process of the heating pipe; a liquid circulation port 7 is also arranged on the sealing shell corresponding to the front end of the heating pipe, a self-sealing connecting block 8 is arranged at the front end of the heating pipe in the sealing shell, and the self-sealing connecting block is connected with the end surface of the inner side of the sealing shell through an elastic connecting piece 9; the sealed quick-change electric heating device adopts an independent connection unit structure between an electric heating pipe and a liquid storage box body on the tunnel drilling and blasting excavation mechanical equipment, when liquid in the liquid storage box body needs to be heated, a transition connecting block and a sealing shell are locked, the front end of the heating pipe props against a self-sealing connecting block structure, the self-sealing connecting block contracts under the action of an elastic connecting piece, and the liquid in the liquid storage box body is communicated with the heating pipe in the sealing shell body through a liquid flow port arranged on the sealing shell body, so that the heating process of the liquid in the liquid storage box body is effectively realized; when the heating device needs to be maintained and replaced, the heating pipe is directly dismounted from the sealed shell, the self-sealing connecting block is retracted under the elastic action at the moment, the liquid circulation port is closed, and the liquid in the liquid storage tank does not flow into the sealed shell.

Further, the connecting and sealing device arranged between the transition connecting block and the sealing shell is characterized in that a connecting boss body 10 is arranged at the position of the end face connected with the transition connecting block on the sealing shell in an accessible manner, the connecting boss body structure can effectively improve the connecting strength between the heating pipe unit and the sealing shell, and the transition connecting block and the connecting boss body are fixedly connected through a locking screw 11 in order to facilitate the connection and disassembly processes of the heating pipe.

Further, a sealing rubber gasket 12 is arranged between the transition connecting block and the sealing shell, and the sealing rubber gasket is used for effectively improving the sealing performance between the heating pipe body and the sealing shell in the installation process.

Furthermore, the self-sealing connecting block arranged in the sealing shell can adopt a rectangular self-sealing structure.

Furthermore, in order to better improve the sealing performance between the self-sealing connecting block and the liquid circulation port, the self-sealing connecting block adopts an arched self-sealing structure, and two symmetrical wing sealing blocks 13 are transitionally arranged at two ends of the self-sealing connecting block.

Further, in order to effectively improve the stability of the self-sealing connecting block in the front and rear displacement contraction process, a rubber sealing layer is arranged at the outer end of the self-sealing connecting block.

Furthermore, two end parts of the self-sealing connecting block are in transition fit with the inner wall of the sealing shell.

Furthermore, the elastic connecting piece adopts a conical spring; the use of a conical compression coil spring configuration allows the spring to compress without the coils compressing against each other, allowing for better and longer travel of the overall elastomeric connector.

Furthermore, limit stops 14 which are symmetrically arranged are arranged at the rear end part of the liquid circulation port in the sealed shell; the utility model discloses a sealing device, including the heating pipe, the formula connecting block is connected with the spacing block, the spacing block structure that sets up can effectual restriction proclaim oneself the return stroke position of formula connecting block at the return stroke in-process, proclaim oneself the formula connecting block return stroke in-process moreover, form effectual volume between it and the spacing block sealed, further improve the sealing performance of heating pipe at the sealed casing of dismantlement maintenance in-process.

Further, a tunnel drilling and blasting construction device is provided, and the tunnel drilling and blasting construction device comprises the sealed quick-change type electric heating device.

This novel structural design's a sealed quick change formula electric heating device and tunnel bore and explode construction equipment, not only effectual realized tunnel bore and explode method excavation mechanical equipment when stock solution tank heating pipe breaks down, can direct efficient will heat the operation process that the body uninstallation was changed, the effectual operating efficiency that improves in the tunnel bore and explode method excavation mechanical equipment operation process, and the effectual intensity of labour who reduces the workman in the maintenance change process, the effectual maintenance change cost that reduces equipment, the effectual economic benefits who improves the enterprise.

Claims

1. The utility model provides a sealed quick change formula electric heater unit, includes heating pipe and the electric heating unit body that is connected with the heating pipe, its characterized in that: a transition connecting block is arranged at the transition connection position between the heating pipe and the electric heating unit body, a sealing shell is arranged outside the heating pipe, and a shell connecting flange is fixedly welded on the sealing shell; the transition connecting block is connected with the sealing shell through a connecting and sealing device; a liquid circulation port is also arranged at the position, corresponding to the front end of the heating pipe, on the sealing shell, a self-sealing connecting block is arranged at the front end of the heating pipe in the sealing shell, and the self-sealing connecting block is connected with the end surface of the inner side of the sealing shell through an elastic connecting piece.

2. A sealed quick-change electric heating device according to claim 1, characterized in that: the connecting boss body is arranged at the position of the end face of the sealing shell connected with the transition connecting block, and the transition connecting block is tightly connected with the connecting boss body through a locking screw.

3. A sealed quick-change electric heating device according to claim 2, characterized in that: and a sealing rubber pad is also arranged between the transition connecting block and the sealing shell.

4. A sealed quick-change electric heating device according to claim 1, characterized in that: the self-sealing connecting block adopts a rectangular self-sealing structure.

5. A sealed quick-change electric heating device according to claim 1, characterized in that: the self-sealing connecting block is of an arch self-sealing structure, and two symmetrical side wing sealing blocks are transitionally arranged at two ends of the self-sealing connecting block.

6. A sealed quick-change electric heating device according to claim 4 or 5, characterized in that: and a rubber sealing layer is arranged at the outer end of the self-sealing connecting block.

7. A sealed quick-change electric heating device according to claim 6, characterized in that: the two end parts of the self-sealing connecting block are in transition fit with the inner wall of the sealing shell.

8. A sealed quick-change electric heating device according to claim 1, characterized in that: the elastic connecting piece adopts a conical spring.

9. A sealed quick-change electric heating device according to claim 6, characterized in that: and limit stops which are symmetrically arranged with each other are arranged at the rear end position of the liquid circulation port in the sealed shell.

10. The utility model provides a tunnel bores and explodes construction equipment which characterized in that: the tunnel drilling and blasting construction equipment comprises a sealed quick-change type electric heating device as claimed in any one of claims 1-9.