CN217206438U - Slewing device and tunneling equipment - Google Patents

Abstract

The utility model provides a slewer and tunnelling equipment. Wherein, slewer is used for excavating equipment, and slewer includes: the rotary support comprises an inner ring and an outer ring which rotate mutually; the connecting bolt is used for connecting the outer ring and the equipment body of the tunneling equipment; the rotary table is connected with the inner ring, a through hole is formed in the rotary table, and the inner ring can enable the connecting bolt to be exposed in the through hole in the rotating process relative to the outer ring. And the maintenance efficiency is improved under the condition of ensuring the reliable strength of the rotary table. Therefore, the rotary table and the cutting arm do not need to be detached, and the overhauling efficiency of the connecting bolt for connecting the rotary support and the equipment body can be improved under the condition that the strength of the rotary table is reliable.

Description

Slewing device and tunneling equipment

Technical Field

The utility model belongs to the technical field of the heading equipment technique and specifically relates to a slewer and heading equipment are related to.

Background

At present, the tunneling equipment, such as longitudinal shaft tunneling equipment in underground tunnel construction, a revolving platform of the tunneling equipment and a revolving support, and connecting bolts of the revolving support and an equipment body bear huge working stress and higher fatigue risk, so that regular inspection and fastening are required. Most tunneling equipment in the related art can realize the maintenance of the rotary table and the rotary support bolt, and generally adopts the following two modes to maintain the connecting bolt of the rotary support and the equipment body.

One is as follows: after the cutting arm and the rotary table are disassembled, the connecting bolt of the rotary support and the equipment body is overhauled, the strength and the structural feasibility of the rotary table can be ensured by the mode, but the operation is complex, the overhauling is inconvenient, and the overhauling efficiency is low;

the second step is as follows: set up the revolving platform into split type structure, maintenance efficiency can promote, nevertheless, can lead to the revolving platform intensity to reduce because of its split type structure.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a slewer need not dismantle revolving platform and cutting arm to guarantee under the reliable circumstances of revolving platform intensity, can improve the efficiency of overhaul of the connecting bolt who connects gyration support and equipment body.

The utility model discloses a first aspect provides a slewer for tunnelling equipment, slewer includes: the rotary support comprises an inner ring and an outer ring which rotate mutually; the connecting bolt is used for connecting the outer ring and the equipment body of the tunneling equipment; the rotary table is connected with the inner ring, a through hole is formed in the rotary table, and the inner ring can enable the connecting bolt to be exposed in the through hole in the rotating process relative to the outer ring.

Furthermore, the rotary table is connected with a cutting arm of the tunneling equipment, and the through hole is formed in one side, away from the cutting arm of the tunneling equipment, of the rotary table; the head of the connecting bolt can be exposed in the through hole; the through hole comprises at least one of a long hole and a kidney-shaped hole.

Further, the swiveling device further includes: the position detection device is arranged on the rotary table and used for detecting whether the connecting bolt is positioned in the effective maintenance range or not and sending an overhaul signal when the connecting bolt is a bolt to be maintained; wherein, the connecting bolt that is located maintenance effective range is the bolt of treating the maintenance.

Further, the position detection device comprises a metal type proximity switch, and the metal type proximity switch is used for detecting whether a connecting bolt exists in a preset range and sending a maintenance signal when the connecting bolt is detected.

Furthermore, the rotary table is provided with two mounting holes for mounting the position detection device, and the two through holes are symmetrically distributed by taking the mounting holes as centers.

Furthermore, a connecting line of the geometric center of the through hole and the rotation center of the rotating device is a first straight line; the connecting line of the geometric center of the mounting hole and the rotation center of the rotation device is a second straight line; the connecting lines of the geometric centers of the two adjacent connecting bolts and the rotation center of the rotation device are respectively a third straight line and a fourth straight line; the included angle between the first straight line and the second straight line is a first included angle, the included angle between the third straight line and the fourth straight line is a second included angle, and the first included angle is an integral multiple of the second included angle.

Furthermore, the rotating angle of the rotating device is a first angle, and the included angle between the first straight lines of the two through holes is a third included angle; wherein the first angle is an integral multiple of the first included angle; the first angle is integral multiple of the second included angle; the first angle is an integral multiple of the third angle.

The embodiment of the utility model provides a heading equipment is provided to the second aspect, include: an apparatus body; and the slewing device of any one of the first to third aspects, wherein the outer ring is connected to the equipment body.

Further, the heading equipment further comprises: and the control device is arranged on the equipment body, is electrically connected with the rotary support and the position detection device of the rotary device and is used for controlling the motion state of the rotary support according to the maintenance signal of the position detection device so as to enable the bolt to be maintained of the rotary device to be exposed in the through hole when the rotary support stops moving.

Further, the heading equipment further comprises: and the alarm device is arranged on the equipment body, is electrically connected with the position detection device of the slewing device and is used for receiving the maintenance signal and sending the alarm signal when the slewing support moves to the position that the slewing device is to be maintained and the bolt is exposed in the through hole.

The embodiment of the utility model provides a slewer and heading equipment, slewer include that the gyration is supported, connecting bolt and revolving platform, and wherein, the gyration is supported including mutual pivoted inner circle and outer lane, and connecting bolt is used for connecting outer lane and equipment body, and the revolving platform is connected with the inner circle, and then makes the inner circle rotate for the outer lane, can realize that the revolving platform rotates for equipment body. Through being provided with the through hole on the revolving platform, the inner circle rotates the in-process for the outer lane, can make connecting bolt expose in the through hole, if connecting bolt's head can expose in the through hole, and then can maintain the connecting bolt who exposes in the through hole through this through hole. Compared with the prior art that the cutting arm and the rotary table need to be disassembled to overhaul the connecting bolt, the operation is simple, the overhaul is convenient, and the overhaul efficiency can be improved; compared with the prior art in which the rotary table is arranged to be of a split structure to overhaul the connecting bolt, the structure of the rotary table is not changed, the strength and the structural feasibility of the rotary table can be ensured, higher maintenance efficiency is ensured, and the rotary table is suitable for popularization and application.

The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. Wherein:

fig. 1 shows a schematic structural diagram of a heading device according to an embodiment of the present invention;

FIG. 2 is a partial block diagram illustrating a perspective of the embodiment of FIG. 1;

FIG. 3 is a schematic diagram showing a portion of the structure of the embodiment shown in FIG. 2;

fig. 4 is a schematic view of a view angle of a turntable according to an embodiment of the present invention;

figure 5 shows a partial cross-sectional view at a-a of the embodiment shown in figure 4.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 5 is:

100 a rotating device, 110 a rotating support, 120 a connecting bolt, 121 a third straight line, 122 a fourth straight line, 130 a rotating table, 131 a through hole, 132 a mounting hole, 133 a first straight line, 134 a second straight line, 140 a position detection device, 200 an equipment body and 300 a cutting arm.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

Turning device 100 and ripping apparatus provided in accordance with some embodiments of the present invention are described below with reference to fig. 1 through 5. The tunneling equipment can be tunneling equipment or other tunneling equipment meeting requirements, as shown in fig. 1 and fig. 2, the tunneling equipment includes an equipment body 200, a turning device 100 is disposed on the equipment body 200, further, the tunneling equipment further includes a cutting arm 300, the turning device 100 is further connected with the cutting arm 300, and the turning device 100 is used for connecting the cutting arm 300 and the equipment body 200, so that the cutting arm 300 can rotate relative to the equipment body 200, and cutting requirements of different positions can be met.

An embodiment of the first aspect of the present invention, as shown in fig. 2 and 3, provides a swiveling device 100, where the swiveling device 100 includes: the rotary support 110, the connecting bolt 120 and the rotary table 130, wherein the rotary support 110 comprises an inner ring and an outer ring which rotate mutually, the connecting bolt 120 is used for connecting the outer ring and the equipment body 200 of the tunneling equipment so as to install the rotary support 110 on the equipment body 200, the rotary table 130 is connected with the inner ring and connected with the cutting arm 300, the inner ring rotates relative to the outer ring, and the rotary table 130 can drive the cutting arm 300 to rotate relative to the equipment body 200.

The through hole 131 is formed in the rotary table 130, so that the connecting bolt 120 can be exposed in the through hole 131 in the process that the inner ring rotates relative to the outer ring, for example, the head of the connecting bolt 120 can be exposed in the through hole 131, the connecting bolt 120 exposed in the through hole 131 can be maintained through the through hole 131, for example, the sleeve extends into the through hole 131, the connecting bolt 120 to be maintained can be fastened, replaced and the like, and compared with the related technology that the connecting bolt is maintained by disassembling the cutting arm and the rotary table, the rotary table type connecting bolt maintenance device is simple in operation and convenient to maintain, and can improve maintenance efficiency; compared with the prior art in which the rotary table is arranged to be of a split structure to overhaul the connecting bolt, the structure of the rotary table is not changed, the strength and the structural feasibility of the rotary table can be ensured, higher maintenance efficiency is ensured, and the rotary table is suitable for popularization and application.

That is to say, the embodiment of the present invention provides a swiveling device 100, which can improve the maintenance efficiency of the connecting bolt 120 connecting the swiveling support 110 and the device body 200 without detaching the swivel table 130 and the cutting arm 300 and ensuring the reliable strength of the swivel table 130.

Further, the rotary table 130 is connected with the inner ring of the rotary support 110 through a bolt, and the bolt connecting the rotary table 130 and the inner ring of the rotary support 110 can be quickly repaired without disassembling the equipment.

Further, the area of the axial cross section of the through hole 131 is greater than the area of the axial cross section of the connecting bolt 120 to ensure that the head of the connecting bolt 120 can be fully exposed in the through hole 131 so that a tool can be inserted into the through hole 131 to perform a maintenance operation on the connecting bolt 120. It can be understood that, the fact that the connecting bolt 120 is exposed in the through hole 131 in the embodiment of the present invention means that the head of the connecting bolt 120 is exposed in the through hole 131, so that the head of the connecting bolt 120 can be operated by a tool to perform maintenance operations such as screwing, replacing, fastening, etc.

In some embodiments that may be realized, because during the operation of the heading equipment, mostly the lower side of the section is pocketed, and the cutting is performed from bottom to top, therefore, the loosening and breaking of the connecting bolt 120 between the revolving support 110 of the heading equipment and the equipment body 200 will occur on the side of the revolving platform 130 away from the cutting arm 300. Therefore, as shown in fig. 3 and 4, the through-hole 131 is formed in the side of the turntable 130 away from the cutting arm 300, and the connecting bolts 120 of the side of the turntable 130 away from the cutting arm 300 are sequentially exposed in the through-hole 131 by swinging the turntable 130 relative to the apparatus body 200 within a certain range, so that the checking, fastening, and replacing operations of the connecting bolts 120 of the side away from the cutting arm 300 can be basically performed. The front-back direction shown by the arrow in fig. 4 refers to the front-back direction of the turntable 130, the front of the turntable 130 is close to the cutting arm 300, and the back of the turntable 130 is far from the cutting arm 300.

The relative rotation angle between the inner ring and the outer ring of the rotating support 110 may be ± 25 °, ± 30 °, ± 35 °, or other numerical values meeting the requirement, that is, the rotation angle of the rotating device 100 may be 25 °, 30 °, 35 °, or other numerical values meeting the requirement. By arranging two through holes 131 at one side of the rotary table 130 far away from the cutting arm 300, the two through holes 131 are matched with the rotary table 130 to rotate within +/-30 degrees relative to the equipment body 200, and the checking, fastening and replacing operations of the connecting bolt 120 far away from the cutting arm 300 can be basically realized.

Further, the through hole 131 includes at least one of a long hole and a kidney-shaped hole, which can completely and sufficiently expose the head of the connection bolt 120 in the through hole 131, so that a tool can be inserted into the through hole 131 to perform a maintenance operation on the connection bolt 120. It is understood that the through hole 131 may be a circular hole, a square hole or a hole with other shapes as long as the area of the axial cross section of the through hole 131 is larger than that of the axial cross section of the connection bolt 120 so that a tool can be inserted into the through hole 131 to operate the head of the connection bolt 120.

In some possible embodiments of the present invention, as shown in fig. 5, the swiveling device 100 further includes: the position detection device 140 and the position detection device 140 are disposed on the rotary table 130, and are configured to detect whether the connecting bolt 120 is located within the effective maintenance range, and when the connecting bolt 120 is located within the effective maintenance range, which indicates that the connecting bolt 120 is loose or broken, the connecting bolt 120 may be regarded as a bolt to be maintained, that is, the position detection device 140 is configured to detect whether the connecting bolt 120 is a bolt to be maintained. The position detection device 140 is further configured to generate an overhaul signal when detecting that the connecting bolt 120 is a bolt to be repaired, so that the heading equipment makes a corresponding control strategy according to the overhaul signal, and the head of the bolt to be repaired can be exposed in the through hole 131, so that the bolt to be repaired can be conveniently overhauled.

In the above embodiment, the position detecting device 140 includes the metal type proximity switch for detecting whether there is the connection bolt 120 within a preset range, and transmitting the service signal when the connection bolt 120 is detected. Specifically, the metal type proximity switch may be a delaware metal type proximity switch, or a metal type proximity switch of another type that meets the requirements, and the metal type proximity switch may detect a metal at a fixed range distance, and may output a signal to the outside when detecting the metal within the range, so that, when the connecting bolt 120 is located within a preset range of the metal type proximity switch due to loosening, it may be determined that the connecting bolt 120 is a bolt to be repaired, and may transmit a repair signal.

Specifically, the prediction range of the proximity switch of the metal type may be set between the distance between the upper end surface of the head of the connection bolt 120 and the top plane of the apparatus body 200, so that when the proximity switch of the metal type detects that the head of the connection bolt 120 is located within the prediction range during the rotation of the turntable 130 relative to the apparatus body 200, it indicates that the connection bolt 120 is loosened, and is a bolt to be repaired, and then, an overhaul signal is transmitted.

In the above embodiment, as shown in fig. 4, the turntable 130 is provided with the mounting hole 132 for mounting the position detection device 140, that is, the position detection device 140 is detachably disposed on the turntable 130 through the mounting hole 132, so that the position detection device 140 can be detached from the turntable 130 for maintenance or replacement, which is convenient for operation and is beneficial to reducing the maintenance and replacement cost.

In this way, when the connecting bolt 120 detected by the position detecting device 140 is a bolt to be maintained, the revolving platform 130 can be rotated in one direction (e.g., clockwise) or rotated in another direction (e.g., counterclockwise) according to the specific position of the bolt to be maintained, so that at least one of the two through holes 131 can be exposed quickly and accurately, the maintenance is facilitated, and the maintenance efficiency can be greatly improved.

In some possible embodiments provided by the present invention, as shown in fig. 4, a line connecting a geometric center of the through hole 131 and a rotation center of the rotation device 100 is a first line 133; a connecting line of the geometric center of the mounting hole 132 and the rotation center of the rotation device 100 is a second straight line 134; connecting lines between the geometric centers of the two adjacent connecting bolts 120 and the rotation center of the rotation device 100 are respectively a third straight line 121 and a fourth straight line 122; an included angle between the first straight line 133 and the second straight line 134 is a first included angle, as shown in fig. 4, α 1 is the first included angle, an included angle between the third straight line 121 and the fourth straight line 122 is a second included angle, the second included angle may be represented by α 2 (not shown in the figure), the first included angle is an integral multiple of the second included angle, that is, α 1 is N1 × α 2(N1 is a positive integer), and the first included angle may be one time, two times, three times, four times or other values meeting requirements of the second included angle, so that, during the rotation process of the turntable 130 relative to the apparatus body 200, the heads of one, two, three, four times or other numbers of connection bolts 120 meeting requirements may be fully and reliably exposed in the through holes 131, so that the tool extends into the through holes 131 to operate the bolts to be smoothly and quickly maintained.

In the above embodiment, the rotation angle of the rotating device 100 is a first angle, the first angle is a positive number, the first angle can be represented by α (not shown in the figure), the included angle between the two first straight lines 133 of the two through holes 131 is a third included angle, as shown in fig. 5, α 3 is a third included angle, wherein the first angle is an integer multiple of the first included angle; the first angle is an integral multiple of the second included angle; the first angle is an integral multiple of the third included angle, that is, the arrangement of α ═ n1 × α 1 ═ n2 × α 2 ═ n3 × α 3(n1, n2, and n3 are all positive integers) enables the heads of the connecting bolts 120 at different positions to be exposed in the through holes 131 quickly, sufficiently, and accurately during the rotation process of the turntable 130 relative to the apparatus body 200 in two different reverse directions, and enables the tool to be inserted into the through holes 131 quickly and smoothly to operate the bolts to be repaired, so as to improve the repair efficiency.

An embodiment of the second aspect of the present invention, as shown in fig. 1 and 2, provides a heading device, including: an apparatus body 200; and the swiveling device 100 according to any one of the first to third aspects, wherein the outer race is connected to the equipment body 200. Since the heading equipment includes the turning device 100 according to any one of the first aspect, all the advantageous technical effects of the turning device 100 are achieved, and are not described in detail herein.

Further, the heading equipment further comprises a cutting arm 300, and the rotary table 130 is connected with the cutting arm 300, wherein one heading equipment may comprise one rotating device 100, or, as shown in fig. 2, one heading equipment may comprise two rotating devices 100, and each rotating device 100 is connected with one cutting arm 300, so as to meet the requirements that different numbers of cutting arms 300 rotate relative to the equipment body 200. It is to be understood that the ripper apparatus may include a different number of turning devices 100, and the present invention is not limited in this regard.

In some embodiments that may be realized, the tunneling apparatus further includes a control device, the control device is disposed on the apparatus body 200, and the control device is connected to the rotary support 110 and the position detection device 140 of the rotary device 100, and is used for controlling the movement state of the rotary support 110 according to the maintenance signal of the position detection device 140 of the rotary device 100, so that the bolt to be maintained of the rotary device 100 is exposed in the through hole 131 when the rotary support 110 stops moving.

Further, the heading equipment may be an intelligent heading equipment, the revolving support 110 of the revolving device 100 rotates relative to the equipment body 200, the position detection device (e.g., a metal proximity switch) arranged on the revolving platform 130 detects that the connecting bolt 120 is located in the effective maintenance range and belongs to a bolt to be maintained, and the position detection device 140 sends an maintenance signal to the control device when the metal proximity switch detects the head of the connecting bolt 120 protruding from the revolving platform 130 and made of metal. The control device controls the movement state of the rotary support 110 according to the received inspection signal of the detection device, so that when the rotary support 110 stops moving, namely the rotary table 130 stops rotating relative to the equipment body 200, the bolt to be maintained of the rotary device 100 is exposed in the through hole 131, namely the head of the bolt to be maintained is exposed through the through hole 131, and the bolt can extend into the sleeve to perform inspection, fastening and replacement operations.

Further, a reset start button is arranged at the revolving platform 130 or an operation platform of the heading equipment, and after the operation of checking the connecting bolt 120 as a bolt to be maintained is completed once, the reset start button is pressed, the revolving support 110 continues to move, and the revolving platform 130 is driven to revolve by a correspondingly set angle.

Further, the heading equipment comprises a rotary oil cylinder for driving the rotary support 110 to move, the telescopic amount position data of the rotary oil cylinder during rotation is acquired, the connecting bolt 120 detected by the position detection device 140 can be accurately positioned, the rotation to the limit is performed on one side (such as clockwise) by adding a movement algorithm, the rotation to the initial detection position is automatically performed in one-time reversing (such as anticlockwise), the detection bolt mode is opened at any position in the whole course by continuing to rotate in the reverse direction (such as anticlockwise), the whole course rotation can be realized, and the overhaul operation of all the connecting bolts 120 is completed.

Further, a starting switch of the maintenance mode of the rotating device 100 and the connecting bolt 120 is arranged on the operation table, the on-off of the starting switch controls the starting and stopping of the maintenance mode of the rotating device 100 and the connecting bolt 120, namely the starting switch is electrically connected with the control device, and the control device controls the working state of the position detection device 140 according to an on-off signal of the starting switch so as to detect whether the connecting bolt 120 is a bolt to be maintained.

In other embodiments of the present invention, the heading machine further includes an alarm device disposed on the machine body, and if the alarm device is disposed on the operation table, the alarm device is electrically connected to the position detecting device 140 of the swiveling mechanism 100 for receiving the maintenance signal and sending the alarm signal when the swiveling support 110 moves to the position where the bolt to be maintained of the swiveling mechanism 100 is exposed in the through hole 131.

In this case, the heading equipment may be ordinary type heading equipment, such as heading equipment that requires an operator to drive. The operator of the heading equipment is prompted according to the alarm signal, the slewing device 100 can be controlled to stop moving, so that the slewing table 130 stops rotating relative to the equipment body 200, and the head of the bolt to be maintained is exposed in the through hole 131. At this time, the auxiliary worker of the excavating equipment can perform inspection, fastening or replacement work on the bolt to be maintained exposed in the through hole 131, and perform reciprocating operation to realize semi-automatic locking of the bolt.

Further, the alarm device may send an alarm signal through a light, a sound or other means meeting the requirement, for example, the alarm device is an indicator light, the operation table is provided with a turn table 130 in place, when the position detection device 140 detects that the connecting bolt 120 is a bolt to be maintained, the position detection device sends an inspection signal to the alarm device, when the head of the bolt to be maintained is exposed in the through hole 131, the indicator light is turned on, the operating hand manually stops the turn device 100, and the roadheader assists in inspecting the exposed bolt to be maintained.

It can be understood that the maintenance mode accords with the normal operation rule of one operator and one auxiliary worker in the tunneling operation, and has economic benefit.

Furthermore, a starting switch of the maintenance mode of the rotating device 100 and the connecting bolt 120 is arranged on the operation table, the on-off of the starting switch controls the starting and stopping of the maintenance mode of the rotating device 100 and the connecting bolt 120, namely the starting switch is electrically connected with the alarm device, only when the starting switch is started, the alarm device collects and receives the maintenance signal of the position detection device 140, and the alarm device does not work at other time.

The embodiment of the utility model provides a slewer 100 and tunnelling equipment have following advantage:

1. according to the distribution of the connecting bolts 120 connecting the rotary support 110 of the rotary device 100 and the equipment body 200, two waist-shaped holes are designed as through holes 131 on the side of the rotary table 130 away from the cutting arm 300 for exposing the heads of the connecting bolts 120, so as to facilitate the maintenance operation of the connecting bolts 120.

2. A position detecting device 140, such as a metal proximity switch, is disposed on the rotary table 130 for detecting the position of the head of the connecting bolt 120, so as to determine that the connecting bolt 120 is a bolt to be repaired, and to cooperate with a related control program, so as to implement an intelligent or semi-automatic maintenance scheme.

3. Aiming at intelligent tunneling equipment, whether the connecting bolt 120 is a bolt to be maintained or not is detected through a metal proximity switch on a rotary table 130 of a rotary device 100, when the bolt to be maintained is detected, a maintenance signal is sent to a control device, the control device is combined with the running state of the rotary device 100, the stroke position of a rotary oil cylinder and a matched reset starting button, automatic control that the through hole 131 of the rotary table 130 exposes the bolt to be maintained is achieved, namely, the through hole 131 of the rotary table 130 is automatically locked at the position of the bolt to be maintained, and intelligent maintenance is achieved.

4. Aiming at the common heading machine, an alarm device is arranged on an operation platform, such as a rotary table 130 in-place alarm lamp, an indicator lamp is electrically connected with a position detection device, and an operator judges whether the through hole 131 of the rotary table 130 exposes the head of the bolt to be maintained through the on-off of the lamp, so that semi-automatic maintenance is realized.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically defined, the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In the present disclosure, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A slewing device for use in a tunnelling apparatus, the device comprising:

the rotary support comprises an inner ring and an outer ring which rotate mutually;

the connecting bolt is used for connecting the outer ring and the equipment body of the tunneling equipment;

the rotary table is connected with the inner ring, a through hole is formed in the rotary table, and the inner ring can enable the connecting bolt to be exposed in the through hole in the rotating process relative to the outer ring.

2. The swivel device of claim 1,

the rotary table is connected with the cutting arm of the tunneling equipment, and the through hole is formed in one side, away from the cutting arm of the tunneling equipment, of the rotary table;

the head of the connecting bolt can be exposed in the through hole;

the through hole comprises at least one of a long-strip hole and a kidney-shaped hole.

3. The swivel device of claim 1 or 2, further comprising:

the position detection device is arranged on the rotary table and used for detecting whether the connecting bolt is positioned in an effective maintenance range or not and sending a maintenance signal when the connecting bolt is a bolt to be maintained;

wherein, the connecting bolt located in the effective maintenance range is the bolt to be maintained.

4. The swivel device of claim 3,

the position detection device comprises a metal type proximity switch, the metal type proximity switch is used for detecting whether the connecting bolt exists in a preset range, and sending the maintenance signal when the connecting bolt is detected.

5. The swivel device of claim 3,

the rotary table is provided with two mounting holes for mounting the position detection device, and the two through holes are symmetrically distributed by taking the mounting holes as centers.

6. The swivel device of claim 5,

the connecting line of the geometric center of the through hole and the rotation center of the rotating device is a first straight line;

the connecting line of the geometric center of the mounting hole and the rotation center of the rotation device is a second straight line;

the connecting lines of the geometric centers of the two adjacent connecting bolts and the rotation center of the rotation device are respectively a third straight line and a fourth straight line;

the included angle between the first straight line and the second straight line is a first included angle, the included angle between the third straight line and the fourth straight line is a second included angle, and the first included angle is an integral multiple of the second included angle.

7. The swivel device of claim 6,

the rotating angle of the rotating device is a first angle, and the included angle between the first straight lines of the two through holes is a third included angle;

wherein the first angle is an integral multiple of the first included angle;

the first angle is an integral multiple of the second included angle;

the first angle is an integral multiple of the third included angle.

8. A heading device, comprising:

an apparatus body; and

the swivel arrangement of any one of claims 1 to 7, the outer race being connected to the equipment body.

9. The ripping apparatus of claim 8, further comprising:

the control device is arranged on the equipment body, is electrically connected with the rotary support of the rotary device and the position detection device and is used for controlling the motion state of the rotary support according to the maintenance signal of the position detection device so as to enable the bolt to be maintained of the rotary device to be exposed in the through hole when the rotary support stops moving.

10. The ripping apparatus of claim 8, further comprising:

and the alarm device is arranged on the equipment body, is electrically connected with the position detection device of the slewing device and is used for receiving an overhaul signal and sending an alarm signal when the slewing support moves to enable the slewing device to be exposed to the through hole through the maintenance bolt.

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