CN110284907B - Steel bow member splicing apparatus - Google Patents
Steel bow member splicing apparatus Download PDFInfo
- Publication number
- CN110284907B CN110284907B CN201910610224.7A CN201910610224A CN110284907B CN 110284907 B CN110284907 B CN 110284907B CN 201910610224 A CN201910610224 A CN 201910610224A CN 110284907 B CN110284907 B CN 110284907B
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- Prior art keywords
- spring
- damping
- vibration
- splicing
- steel arch
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
- E21D11/183—Supporting means for arch members, not provided for in E21D11/22
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
- E21D11/406—Placing endless lining elements, e.g. from reels
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a steel arch splicing device, which comprises: the device comprises splicing rings for mounting steel arches, a fixing device for splicing, positioning and fixing a plurality of steel arches, a vibration damping device for buffering vibration borne by the steel arches and a control device for controlling the action of the fixing device; fixing device all is connected with concatenation ring, controlling means, and damping device's one end is connected with the concatenation ring, and the other end is connected with fixing device. Because be provided with vibration damper between fixing device and the concatenation ring, consequently at the in-process that the steel bow member was assembled, under the condition that produces the vibration, the vibration can at first transmit to the concatenation ring, the vibration transmission of concatenation ring is to vibration damper, vibration damper can cushion the produced vibration of tunnel excavation in-process, avoid vibration transmission to steel bow member to make the steel bow member take place the offset because of the vibration, perhaps the condition of the disconnection of connection between the adjacent steel bow member, go on smoothly in order to guarantee the steel bow member assembly process.
Description
Technical Field
The invention relates to the technical field of tunnel arch support, in particular to a steel arch splicing device.
Background
In the process of tunnel excavation, in order to carry out better fixed to the tunnel to accomplish corresponding engineering construction, need strut the top of tunnel and around, tunnel steel bow member is the more common mode of strutting in the tunnel engineering construction process of our country.
At present, the tunnel steel arch splicing generally adopts a manual operation mechanical mode to operate, the supporting process efficiency is low, and the problems of untimely supporting or unstable quality and even final collapse accidents are easily caused; the automatic splicing of the steel arch frame by a machine is a necessary trend in future development. However, in the automatic operation process of the existing machine, the steel arch installing robot automatically grabs the steel arch on the material conveying trolley for many times through the grabbing mechanism and places the steel arch on the splicing ring to complete the splicing of the whole steel arch. Because the main machine vibrates violently in the advancing direction of tunneling, the steel arch is easy to vibrate irregularly due to the influence of uncertain load in the splicing process of the steel arch, and the splicing task of the steel arch is easy to fail.
In summary, how to avoid the failure of the splicing task due to the vibration problem in the steel arch splicing process is a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of this, the invention aims to provide a steel arch splicing device, which can avoid the influence of host machine vibration on the steel arch in the splicing process and improve the success rate of mechanized splicing of the steel arch.
In order to achieve the above purpose, the invention provides the following technical scheme:
a steel arch splicing apparatus comprising: the device comprises splicing rings for mounting steel arches, fixing devices for splicing, positioning and fixing a plurality of steel arches, a vibration damping device for damping vibration borne by the steel arches and a control device for controlling the actions of the fixing devices;
the fixing device is connected with the splicing ring and the control device, one end of the vibration damping device is connected with the splicing ring, and the other end of the vibration damping device is connected with the fixing device.
Preferably, the vibration damping device comprises a spring and a damping vibration absorber, and the spring and the damping vibration absorber are used for buffering vibration borne by the steel arch;
and the spring is connected with the fixing device, and the damping vibration absorber is connected with the splicing ring.
Preferably, the damping vibration absorber is provided with a first spring bracket for fixing the spring, the spring is sleeved on the outer peripheral part of the damping vibration absorber, and the spring and the damping vibration absorber have an overlapping part in the length direction.
Preferably, the fixing device comprises a limiting block for positioning the steel arch and a grabbing hand for fixing the steel arch positioned on the limiting block;
the limiting block is connected with the vibration damper, and the grabbing hand is connected with the splicing ring.
Preferably, the spring comprises a first spring and a second spring which are arranged at the lower part of the same limiting block, and the damping shock absorber comprises a first damping shock absorber connected with the first spring and a second damping shock absorber connected with the second spring;
the first spring is sleeved on the outer peripheral part of the first damping shock absorber, and the second spring is sleeved on the outer peripheral part of the second damping shock absorber;
the first spring and the first damping vibration absorber have an overlapping portion in the longitudinal direction, and the second spring and the second damping vibration absorber have an overlapping portion in the longitudinal direction.
Preferably, the limiting block is provided with a U-shaped limiting groove for positioning the steel arch frame, and an opening of the U-shaped limiting groove is located on the upper surface of the limiting block.
Preferably, the limiting block is provided with a second spring bracket for fixing the spring, and the second spring bracket is detachably connected with the spring.
Preferably, the grabbing hand is provided with a buffer layer for buffering vibration of the steel arch, and the buffer layer is arranged on the inner surface of the grabbing hand in contact with the steel arch.
Preferably, the grabbing hand is provided with a clamping jaw for clamping the steel arch and a power device for driving the clamping jaw to open or clamp, and the power device is connected with the control device.
Preferably, the grabbing hand is detachably connected with the splicing ring; and/or the vibration damper is detachably connected with the splicing ring.
The invention provides a steel arch splicing device, which comprises: the device comprises splicing rings for mounting steel arches, a fixing device for splicing, positioning and fixing a plurality of steel arches, a vibration damping device for buffering vibration borne by the steel arches and a control device for controlling the action of the fixing device; fixing device all is connected with concatenation ring, controlling means, and damping device's one end is connected with the concatenation ring, and the other end is connected with fixing device.
In the in-process of actually assembling, can snatch a plurality of steel bow member through grabbing device, controlling means control fixing device's action, the steel bow member that grabbing device will snatch is placed in fixing device, and fixing device fixes a position and fixes a plurality of steel bow member in proper order, makes the steel bow member set up for fixing device is fixed, and along the radial and circumference location of concatenation ring, until the whole completion of assembling of steel bow member.
The grabbing device that mentions in this application file is for being used for snatching steel bow member to steel bow member splicing apparatus snatch manipulator or many joint arm isotructure, specifically confirms according to actual conditions, does not do here and give unnecessary details.
Because be provided with vibration damper between fixing device and the concatenation ring, consequently at the in-process that the steel bow member was assembled, under the condition that produces the vibration, the vibration can at first transmit to the concatenation ring, the vibration transmission of concatenation ring is to vibration damper, vibration damper can cushion the produced vibration of tunnel excavation in-process, avoid vibration transmission to steel bow member to make the steel bow member take place the offset because of the vibration, perhaps the condition of the disconnection of connection between the adjacent steel bow member, go on smoothly in order to guarantee the steel bow member assembly process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a first embodiment of a steel arch splicing device provided by the invention;
FIG. 2 is a side view of a steel arch splicing apparatus;
FIG. 3 is a schematic structural view of a limiting block and a damping device;
FIG. 4 is a schematic structural view of a vibration damping device;
fig. 5 is a schematic structural view of the grasping hand.
In FIGS. 1-5:
1 is a grabbing hand, 2 is a splicing ring, 3 is a limiting block, 4 is a steel arch frame, 5 is a vibration damper, 51 is a spring and 52 is a damping vibration damper.
Detailed Description
The technical solutions in the embodiments of the present invention will be 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 of the 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 core of the invention is to provide a steel arch splicing device which can buffer the vibration borne by the steel arch in the splicing process, avoid the influence of the vibration of a host on the steel arch in the splicing process and improve the success rate of the mechanized splicing of the steel arch.
Referring to fig. 1 to 5, fig. 1 is a schematic structural diagram of a first embodiment of a steel arch splicing apparatus according to the present invention; FIG. 2 is a side view of a steel arch splicing apparatus; FIG. 3 is a schematic structural view of a limiting block and a damping device; FIG. 4 is a schematic structural view of a vibration damping device; fig. 5 is a schematic structural view of the grasping hand.
This concrete embodiment provides a steel bow member splicing apparatus, includes: the steel arch splicing device comprises a splicing ring 2 for mounting steel arches 4, a fixing device for splicing, positioning and fixing a plurality of steel arches 4, a vibration damping device 5 for damping vibration borne by the steel arches 4 and a control device for controlling the action of the fixing device; the fixing device is connected with the splicing ring 2 and the control device, one end of the vibration damping device 5 is connected with the splicing ring 2, and the other end of the vibration damping device is connected with the fixing device.
In the in-process of actually assembling, can snatch a plurality of steel bow member 4 through grabbing device, controlling means control fixing device's action, grabbing device places the steel bow member 4 that snatchs in fixing device, and fixing device fixes a position and fixes a plurality of steel bow member 4 in proper order, makes steel bow member 4 for fixing device is fixed to be set up, and along the radial and circumference location of concatenation ring 2, until the completion is assembled to steel bow member 4 is whole.
It should be noted that the grabbing device for grabbing the steel arch 4 may be a multi-degree-of-freedom manipulator or a grabbing device disposed on the multi-degree-of-freedom robot, and only needs to complete grabbing the steel arch 4 from the original placement position to the positioning position in the splicing process of the steel arch 4.
Preferably, the splicing ring 2 is of an annular structure and is used for installing the fixing device and the vibration damping device 5, the control device can be arranged on the splicing ring 2 and can also be arranged outside the splicing ring 2, and the control device is specifically determined according to actual conditions and is not repeated herein.
Because be provided with damping device 5 between fixing device and the splice ring 2, consequently at the in-process that steel bow member 4 was assembled, under the circumstances that produces the vibration, the vibration can transmit to splice ring 2 at first, the vibration transmission of splice ring 2 is to damping device 5, damping device 5 can cushion the produced vibration of tunnel excavation in-process, avoid vibration transmission to steel bow member 4 to make steel bow member 4 because the vibration takes place the offset, perhaps the condition of the disconnection between the adjacent steel bow member 4, in order to guarantee going on smoothly of steel bow member 4 assembly process.
It should be noted that, during the tunnel excavation process, the vibration along the length direction of the tunnel is large, preferably, the vibration device is arranged between the splicing ring 2 and the fixing device, and the damping direction of the vibration damping device 5 is along the length direction of the tunnel; of course, the vibration damping device 5 may also include a peripheral vibration damping device disposed at the outer periphery of the limiting block 3 and used for damping the vibration in the non-tunnel length direction, and the arrangement mode of the vibration damping device 5 needs to be determined according to the actual situation, which is not described herein again.
The damping device 5 may be elastic rubber with a damping effect, or may be a damping spring, or other devices that can perform a damping effect, and is specifically determined according to actual conditions, and is not described herein.
On the basis of the above embodiment, the structure of the vibration damping device 5 can be further limited, the vibration damping device 5 includes a spring 51 and a damping vibration absorber 52, and the spring 51 and the damping vibration absorber 52 are used for buffering the vibration received by the steel arch frame 4; and the spring 51 is connected with the fixing device, and the damping vibration absorber 52 is connected with the splice ring 2.
It should be noted that the spring 51 and the damping absorber 52 may be arranged in parallel and are both connected to the fixing device, when the splicing ring 2 receives vibration, the vibration is transmitted to the spring 51 and the damping absorber 52, and the spring 51 and the damping absorber 52 play a role in buffering at the same time; or the spring 51 and the damping vibration absorber 52 are connected in the height direction, one end of the spring 51 is connected with the fixing device, the other end of the spring 51 is connected with the damping vibration absorber 52, the damping vibration absorber 52 is connected with the splicing ring 2, after the fixing device is impacted by vibration, the vibration is firstly transmitted to the spring 51, the spring 51 deforms, and then the vibration is transmitted to the damping vibration absorber 52; of course, other setting modes can be adopted, and the setting mode is determined according to the actual situation.
Preferably, the damper shock absorber 52 may be provided with a first spring bracket for fixing the spring 51, the spring 51 may be fitted to an outer circumferential portion of the damper shock absorber 52, and the spring 51 and the damper shock absorber 52 may be partially overlapped in a longitudinal direction.
The spring 51 and the damping vibration absorber 52 are arranged in a manner shown in fig. 4, one end of the spring 51 is connected with the fixing device, the damping vibration absorber 52 is provided with a first spring bracket for fixing the spring 51, after the splicing ring 2 is vibrated, the vibration is firstly transmitted to the damping vibration absorber 52, the damping vibration absorber 52 is deformed, when the deformation amount of the damping vibration absorber 52 is larger, the vibration is transmitted to the overlapped section of the spring 51 and the damping vibration absorber 52, the spring 51 and the damping vibration absorber 52 simultaneously play a vibration damping role, if the vibration is further increased, the deformation amount of the damping vibration absorber 52 basically reaches the limit, and the spring 51 plays a vibration damping role.
Under the condition of different vibrations, the spring 51 and the damping absorber 52 respectively play a role in vibration reduction or simultaneously play a role in vibration reduction after being connected in parallel, so that different reactions can be realized according to different vibrations, and the influence of the vibration on the steel arch frame 4 is further avoided.
The springs 51 and the damper 52 are provided to absorb not only the vibration in the longitudinal direction of the tunnel but also some of the vibration in other directions, for example, the vibration perpendicular to the longitudinal direction of the tunnel.
On the basis of the above embodiment, in order to enable the fixing device to smoothly position and fix the steel arch frame 4, the fixing device may include a limiting block 3 for positioning the steel arch frame 4 and a grabbing hand 1 for fixing the steel arch frame 4 positioned on the limiting block 3; the limiting block 3 is connected with the vibration damper 5, and the grabbing hand 1 is connected with the splicing ring 2.
It should be noted that, one fixing device may include one limiting block 3 and one grasping hand 1, may also include two limiting blocks 3 and one grasping hand 1, or include two limiting blocks 3 and two grasping hands 1, which is determined according to actual conditions, and is not described herein again.
Of course, the gripper hands 1 can also be opened or gripped manually by mechanical means, but in order to enable a fully automated mechanical mounting of the steel arch 4, it is preferred that the gripper hands 1 are controlled by a control device to open or close the clamping.
On the basis of the above embodiment, the spring 51 may include a first spring and a second spring disposed at the lower portion of the same stopper 3, and the damping absorber 52 includes a first damping absorber connected to the first spring and a second damping absorber connected to the second spring; the first spring is sleeved on the outer peripheral part of the first damping shock absorber, and the second spring is sleeved on the outer peripheral part of the second damping shock absorber; the first spring and the first damping absorber are partially overlapped in the length direction, and the second spring and the second damping absorber are partially overlapped in the length direction.
It should be noted that the number of the springs 51 connected to the same stopper 3 may be 1, or 2, 3 or more, and is determined according to the actual situation.
Preferably, the first spring and the second spring are arranged along the length direction of the same limiting block 3, and of course, the first spring and the second spring may also be arranged along the width direction or other directions of the same limiting block 3, which is determined specifically according to actual conditions and is not described herein.
On the basis of the above embodiment, in order to smoothly position the steel arch frame 4 at the limiting block 3, a U-shaped limiting groove for positioning the steel arch frame 4 may be provided at the limiting block 3, and an opening of the U-shaped limiting groove is located on the upper surface of the limiting block 3.
It should be noted that the arrangement of the U-shaped limiting groove mainly meets the requirement of positioning the steel arch 4 along the radial direction, and certainly, a circumferential positioning part for positioning the steel arch 4 along the circumferential direction may be arranged in the length direction of the U-shaped limiting groove, or the axial position of the steel arch 4 is limited by the arrangement of the U-shaped limiting groove; the circumferential positioning of the steel arch 4 is mainly accomplished by the gripping device.
In the process of actually assembling the steel arch frame 4, the sizes of the steel arch frames 4 are different, so that different damping devices 5 are required to be arranged on the limiting blocks 3, and in order to enable the limiting blocks 3 to be matched with the damping devices 5 of different models, second spring brackets for fixing the springs 51 can be arranged on the limiting blocks 3 and detachably connected with the springs 51.
Meanwhile, under the condition that the spring 51 or the limiting block 3 is damaged, the limiting block 3 or the spring 51 can be replaced independently, and maintenance is facilitated.
Preferably, the spring 51 bracket is a plate-shaped structure provided with a groove for fixing the spring 51, and of course, the spring 51 bracket may also be in other structural forms, which is determined according to actual situations and is not described herein again.
On the basis of the above embodiment, in order to avoid the steel arch 4 from being affected by vibration during splicing, a buffer layer for buffering the vibration of the steel arch 4 may be disposed on the grabbing hand 1, and the buffer layer is disposed on the inner surface of the grabbing hand 1 contacting the steel arch 4.
Preferably, the buffer layer is an elastic rubber pad, and certainly, the buffer layer can also be other buffer damping materials such as elastic sponge, and is determined according to actual conditions, and is not described herein again.
In order to successfully fix the steel arch 4 after being positioned, the gripping hand 1 may be provided with a clamping jaw for clamping the steel arch 4 and a power device for driving the clamping jaw to open or clamp, and the power device is connected with the control device.
The power device can be an air cylinder, an oil cylinder, a motor or other power equipment, and the control device can control the opening or the clamping of the clamping jaw by controlling the action of the power device.
Preferably, the gripping jaws of the gripping hand 1 are in their clamped state in the non-end position of the fixed steel arch 4.
Preferably, in order to enable the steel arch splicing device to meet the splicing requirements of different numbers of steel arches 4, the grabbing hand 1 and the splicing ring 2 can be detachably connected; and/or the damping device 5 is detachably connected to the splice ring 2.
In another embodiment, the splice ring 2 is a ring-shaped structure, 8 limiting blocks 3 and 5 grabbing hands 1 are arranged on the same surface of the splice ring 2, the setting positions of the limiting blocks 3 and the grabbing hands 1 are related to the number of the steel arches 4 and the length of each steel arch 4, one section of steel arch 4 can be matched with one limiting block 3 and also can be matched with two limiting blocks 3 at the same time, one grabbing hand 1 is generally only used for fixing one end of the steel arch 4, the splice ring is specifically determined according to actual conditions, and the splice ring is not described in detail herein.
It should be noted that, in the present application, the first spring bracket and the second spring bracket, the first spring and the second spring, and the first damping absorber and the second damping absorber are mentioned only for distinguishing the position differences and are not in sequence.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. Any combination of all embodiments provided by the present invention is within the scope of the present invention, and will not be described herein.
The steel arch splicing device provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (9)
1. A steel bow splicing device, comprising: the steel arch support comprises a splicing ring (2) used for mounting steel arches (4), a fixing device used for splicing, positioning and fixing a plurality of steel arches (4), a vibration damping device (5) used for damping vibration borne by the steel arches (4) and a control device used for controlling the action of the fixing device;
the fixing device is connected with the splicing ring (2) and the control device, one end of the vibration damping device (5) is connected with the splicing ring (2), and the other end of the vibration damping device is connected with the fixing device;
the fixing device comprises a limiting block (3) used for positioning the steel arch (4) and a grabbing hand (1) used for fixing the steel arch (4) positioned on the limiting block (3);
the limiting block (3) is connected with the vibration damper (5), and the grabbing hand (1) is connected with the splicing ring (2).
2. The steel arch splicing device according to claim 1, wherein the damping device (5) comprises a spring (51) and a damping vibration absorber (52), the spring (51) and the damping vibration absorber (52) are used for buffering the steel arch (4) from vibration;
and the spring (51) is connected with the fixing device, and the damping vibration absorber (52) is connected with the splicing ring (2).
3. The steel arch splicing apparatus of claim 2, wherein the damping damper (52) is provided with a first spring bracket for fixing the spring (51), the spring (51) is sleeved on an outer peripheral portion of the damping damper (52), and the spring (51) and the damping damper (52) have an overlapping portion in a length direction.
4. The steel arch splicing apparatus of claim 3, wherein the spring (51) comprises a first spring and a second spring disposed at a lower portion of the same limiting block (3), and the damping vibration absorber (52) comprises a first damping vibration absorber connected to the first spring and a second damping vibration absorber connected to the second spring;
the first spring is sleeved on the outer peripheral part of the first damping shock absorber, and the second spring is sleeved on the outer peripheral part of the second damping shock absorber;
the first spring and the first damping vibration absorber have an overlapping portion in the longitudinal direction, and the second spring and the second damping vibration absorber have an overlapping portion in the longitudinal direction.
5. The steel arch splicing device according to claim 4, wherein the limiting block (3) is provided with a U-shaped limiting groove for positioning the steel arch (4), and an opening of the U-shaped limiting groove is located on an upper surface of the limiting block (3).
6. Steel arch splicing device according to claim 5, wherein said stop block (3) is provided with a second spring bracket for fixing said spring (51), said second spring bracket being detachably connected to said spring (51).
7. A steel arch splicing device according to any one of claims 1 to 6, wherein the gripping hand (1) is provided with a damping layer for damping vibrations of the steel arch (4), the damping layer being provided on the inner surface of the gripping hand (1) in contact with the steel arch (4).
8. The steel arch splicing device according to claim 7, wherein the gripping hand (1) is provided with gripping jaws for gripping the steel arch (4) and a power device for driving the gripping jaws to open or grip, the power device being connected with the control device.
9. The steel arch splicing device according to claim 8, wherein said gripping hand (1) is removably connected to said splicing ring (2); and/or the vibration damper (5) is detachably connected with the splicing ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910610224.7A CN110284907B (en) | 2019-07-08 | 2019-07-08 | Steel bow member splicing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910610224.7A CN110284907B (en) | 2019-07-08 | 2019-07-08 | Steel bow member splicing apparatus |
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| CN110284907A CN110284907A (en) | 2019-09-27 |
| CN110284907B true CN110284907B (en) | 2021-03-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110640380B (en) * | 2019-10-31 | 2023-06-02 | 中国铁建重工集团股份有限公司 | Integral ring assembling tool and method for segmented steel pipe ring |
| CN113756846B (en) * | 2021-09-14 | 2024-03-22 | 中铁工程装备集团有限公司 | Steel arch locking device, steel arch and steel arch assembling method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4382721A (en) * | 1979-07-16 | 1983-05-10 | Holywell Engineering Limited | Mine roadway support stilt |
| EP1691107B1 (en) * | 2005-02-11 | 2015-10-14 | Schaeffler Technologies AG & Co. KG | Torsional vibration damper |
| CN206513088U (en) * | 2017-01-20 | 2017-09-22 | 南京丹枫机械科技有限公司 | A kind of elastic damping shock absorber |
| CN108278121B (en) * | 2018-03-26 | 2023-08-22 | 中铁工程装备集团有限公司 | Intelligent steel arch assembling robot |
| CN108756927B (en) * | 2018-07-05 | 2024-01-19 | 中国铁建重工集团股份有限公司 | Steel arch installing system of heading machine |
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