CN211691372U - Railway tunnel construction platform - Google Patents
Railway tunnel construction platform Download PDFInfo
- Publication number
- CN211691372U CN211691372U CN201922361016.6U CN201922361016U CN211691372U CN 211691372 U CN211691372 U CN 211691372U CN 201922361016 U CN201922361016 U CN 201922361016U CN 211691372 U CN211691372 U CN 211691372U
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- chassis
- construction platform
- railway tunnel
- tunnel construction
- pedal
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Abstract
The utility model provides a railway tunnel construction platform, belonging to the technical field of railway engineering; it is used for being under construction to the tunnel top. The construction platform comprises a chassis, a screw rod, a driving assembly, a lifting assembly, a guide rod and a ladder stand. The screw rod is vertically arranged and is rotatably connected with the chassis; the driving assembly is in transmission connection with the screw rod. The lifting assembly comprises a pedal, a connecting nut and a guide cylinder, the connecting nut and the guide cylinder are fixedly connected with the pedal, and the nut is further in threaded connection with the screw rod. The guide rod is connected with the chassis and is in sliding fit with the guide cylinder. The cat ladder slope sets up, the upper end and the footboard rotatable coupling of cat ladder, and the lower extreme can the overlap joint on the chassis. Above-mentioned construction platform can be convenient for constructor to not the region of construction of co-altitude to holistic efficiency of construction has been improved greatly.
Description
Technical Field
The application relates to the field of railway construction, in particular to a railway tunnel construction platform.
Background
When part of railway lines meet mountains in the building process, tunnels are generally required to be excavated, and railways pass through the mountains through the tunnels. The construction and maintenance of the tunnel roof are critical to the safe operation of the whole railway, and particularly in karst mountainous areas, the tunnel roof needs to be reinforced and periodically checked and maintained. The construction and maintenance are very inconvenient because the top of the tunnel is higher; therefore, the railway tunnel construction platform has important significance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a railway tunnel construction platform, it can be used for constructor to be under construction to railway tunnel's top and maintain.
The utility model discloses a realize like this:
a railway tunnel construction platform comprising:
a chassis;
the screw rod is vertically arranged and is rotatably connected with the chassis;
the driving assembly is in transmission connection with the screw rod;
the lifting assembly comprises a pedal, a connecting nut and a guide cylinder, the connecting nut and the guide cylinder are fixedly connected with the pedal, and the nut is further in threaded connection with the lead screw;
the guide rod is connected with the chassis and is in sliding fit with the guide cylinder;
the ladder stand is obliquely arranged, the upper end of the ladder stand is rotatably connected with the pedal, and the lower end of the ladder stand can be overlapped on the chassis.
Furthermore, a lifting block is arranged below the ladder stand and connected with the chassis; the lifting block comprises an inclined surface, and the inclined surface and the ladder stand are arranged oppositely.
The supporting device further comprises a butting block, and the butting block is detachably connected with the chassis; the abutting block is used for abutting against the bottom of the ladder stand so as to prevent the inclination angle of the ladder stand from becoming smaller.
Furthermore, a sliding groove is formed in the base plate and extends along the sliding direction of the bottom of the crawling ladder; the butt joint block is arranged on the sliding groove and connected with the chassis through a bolt.
Further, the railway tunnel construction platform comprises four guide rods, and the lifting assembly comprises four guide cylinders; the pedal is a rectangular plate, and the four guide cylinders are respectively connected to four corners of the pedal.
Further, a linear bearing is arranged in the guide cylinder, and the guide cylinder is in sliding fit with the guide rod through the linear bearing.
The walking device comprises a chassis, a walking component and a driving component, wherein the chassis is provided with a plurality of wheels, the walking component comprises a wheel shaft and two walking wheels, and the walking wheels are rotatably connected with the chassis through the wheel shaft.
Further, flanges are arranged on the inner sides of the walking wheels and extend along the radial direction of the walking wheels.
Further, the ladder stand comprises two ladder stands which are respectively connected to two ends of the pedal.
Further, the lifting assembly further comprises a guardrail, and the guardrail is connected with the pedal.
The utility model provides an it is exactly that the beneficial effect of scheme is:
the utility model discloses a railway tunnel construction platform that above-mentioned design obtained, during the use, remove the position that needs be under construction or maintain to railway tunnel with construction platform earlier. Then the screw rod is driven to rotate, at the moment, the rotation freedom degree of the nut is limited, and the axial freedom degree of the screw rod is limited; therefore, when the screw rod rotates, the nut drives the pedal to do lifting motion. When lifting unit risees to the height of being convenient for the construction, constructor along the cat ladder climb to lifting unit's step on the footboard, on the step on the construction region carry out the construction can. When the height of the pedal is required to be adjusted so as to adapt to construction areas with different heights, the pedal is continuously lifted by rotating the screw rod. Above-mentioned construction platform can be convenient for constructor to not the region of construction of co-altitude to holistic efficiency of construction has been improved greatly.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a construction state of a railway tunnel construction platform in a tunnel provided by an embodiment of the utility model;
fig. 2 is a top view of the railway tunnel construction platform shown in fig. 1 according to an embodiment of the present invention;
fig. 3 is a left side view of the embodiment of the present invention provides the railway tunnel construction platform in fig. 2.
Icon: 100-a construction platform; 110-a chassis; 112-an abutment block; 114-a lifting block; 116-a bearing seat; 120-a screw rod; 130-a drive assembly; 140-a lifting assembly; 141-pedal; 142-a guide cylinder; 143-guard bar; 144-coupling nut; 150-a guide bar; 160-ladder stand; 170-running components; 200-a tunnel; 300-steel rail.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. 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, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Example (b):
the present embodiment provides a railway tunnel construction platform 100 for constructing the roof of a railway tunnel 200. The construction platform 100 comprises a chassis 110, a screw rod 120, a driving assembly 130, a lifting assembly 140, a guide rod 150 and a ladder 160; wherein, the screw rod 120 is vertically arranged in the middle of the chassis 110 and is rotatably connected with the chassis 110; the driving assembly 130 is used for driving the screw rod 120 to rotate; when the screw rod 120 rotates, it can make the lifting assembly 140 move up and down along the guide rod 150; a constructor can climb up the elevating assembly 140 through the ladder 160 to facilitate the construction of the top of the tunnel 200.
Specifically, the chassis 110 includes a frame and a steel plate, and the frame is a rectangular structure formed by welding sectional materials; the steel plate is welded on the frame. To facilitate the mounting of the screw 120 and the drive assembly 130, the middle part of the frame is also provided with horizontal connecting profiles.
The middle part of the chassis 110 is provided with a bearing seat 116, and the bottom of the bearing seat 116 is connected with the connecting section bar through a bolt. The bearing seat 116 includes a seat body and an upper bearing and a lower bearing, wherein the upper bearing is a ball bearing, and the lower bearing is a thrust ball bearing. The two bearings enable the screw 120 to maintain a vertical state and to rotate about its axis.
The driving assembly 130 includes a motor and a speed reducer, which are mounted on the chassis 110; the speed reducer is connected with the screw rod 120 through a belt transmission assembly, thereby driving the screw rod 120 to rotate.
Two walking assemblies 170 are connected below the chassis 110, and each walking assembly 170 comprises an axle and two walking wheels; two running wheels are arranged at both ends of the wheel axle and are rotatably connected with the chassis 110 through the wheel axle. The inner side of the running wheels is also provided with flanges extending in the radial direction thereof, thereby facilitating walking on the rails 300. In addition, in order to drive the running component 170 to run along the steel rail 300, a power component is also arranged on the chassis 110; the power assembly is in transmission connection with one of the wheel shafts.
The lifting assembly 140 is integrally movable up and down along the lead screw 120, and includes a carrier, a pedal 141, a coupling nut 144, and a guide cylinder 142. The bearing frame is a rectangular frame structure formed by welding sectional materials; the pedal 141 is a rectangular corrugated steel plate and is welded to the carrier. The coupling nut 144 is welded to the middle of the frame structure and is threadedly coupled to the lead screw 120. The four corners of the bearing frame are respectively provided with one guide cylinder 142, and linear bearings are arranged in the guide cylinders 142.
Correspondingly, four vertical guide rods 150 are arranged on the chassis 110, and each guide rod 150 is slidably connected with the corresponding guide cylinder 142. The four guide rods 150 not only guide the lifting assembly 140, but also limit the rotational degree of freedom of the lifting assembly 140, so that the lifting assembly 140 can only move up and down when the screw rod 120 rotates. In addition, the guide bar 150 can also reduce the amount of downward deformation at the edges of the carrier.
In order to facilitate the construction worker to climb on the step plate 141, a ladder stand 160 is provided at each of the front and rear portions of the chassis 110. The ladder stand 160 is obliquely arranged, and the upper end of the ladder stand is rotatably connected with the pedal 141 through a rotating shaft which is horizontally arranged; the lower portion of ladder 160 can overlap chassis 110 but not be connected to chassis 110. When the upper part of the ladder stand 160 ascends and descends along with the pedal 141, the bottom part of the ladder stand 160 slides along the length direction of the chassis 110; i.e., toward or away from the lead screw 120.
If the rising height of the pedal 141 is too high, it makes the inclination angle of the ladder stand 160 too large, i.e. the whole ladder stand 160 is too steep; this not only makes ladder 160 dangerous, but also makes it difficult for ladder 160 to self-lock when pedal 141 is likely to be lowered. To prevent the inclination angle of the ladder 160 from being excessively large; a lifting block 114 is provided below each ladder stand 160. The lifting block 114 is connected with the chassis 110; the lifting block 114 includes an inclined surface which is disposed opposite to the ladder stand 160, and when the upper end of the ladder stand 160 is high, the ladder stand 160 is lifted by the lifting block 114 such that the bottom end of the ladder stand 160 is separated from the chassis 110 and the inclined surface abuts against, thereby preventing the inclination angle of the ladder stand 160 from being excessively large. At this time, when the upper end of the ladder stand 160 descends along with the step 141, the bottom end of the ladder stand 160 can gradually descend along the inclined surface and finally return to the chassis 110.
Further, a steel plate of the chassis 110 is also provided with a sliding chute, and the sliding chute extends along the length direction of the steel plate; the chute is provided with a butt block 112. A threaded hole is formed in the abutting block 112, a T-head bolt penetrates through the threaded hole, and the bolt head of the T-head bolt penetrates through the sliding groove to abut against the bottom of the steel plate; the abutment block 112 can be secured to the chute by tightening the nut on the T-head bolt. The bottom of the ladder 160 abuts against one side of the abutment block 112 close to the middle of the steel plate, so that the ladder 160 is more stable, and the ladder 160 can support the pedal 141.
Further, in order to facilitate the constructor to control the driving assembly 130 and the power assembly on the pedal 141, the construction platform 100 is further provided with a controller and two operation panels, wherein the controller is in communication connection with the driving assembly 130 and the power assembly and is used for controlling the driving assembly 130 and the power assembly to work; the operation panels are respectively arranged on the pedal 141 and the chassis 110, and both of the operation panels can send control signals to the controller.
The use method and the beneficial effects of the railway tunnel 200 construction platform 100 provided by the embodiment are as follows: when in use, the running wheels of the construction platform 100 are firstly arranged on the steel rails 300 and are used to the position of the tunnel 200 needing construction or maintenance. Then the screw rod 120 is driven to rotate by the driving assembly 130; at this time, since the rotational degree of freedom of the nut is restricted, and the axial degree of freedom of the screw rod 120 is restricted; therefore, when the screw rod 120 rotates, the nut drives the pedal 141 to move up and down. When the lifting assembly 140 is raised to a height convenient for construction, a constructor climbs the step 141 of the lifting assembly 140 along the ladder 160 and constructs a construction area on the step 141. When the height of the pedal 141 needs to be adjusted so as to be suitable for construction areas with different heights, the pedal 141 is lifted and lowered by rotating the screw rod 120. The construction platform 100 can facilitate construction personnel to construct construction areas with different heights, so that the overall construction efficiency is greatly improved.
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 railway tunnel construction platform, comprising:
a chassis;
the screw rod is vertically arranged and is rotatably connected with the chassis;
the driving assembly is in transmission connection with the screw rod;
the lifting assembly comprises a pedal, a connecting nut and a guide cylinder, the connecting nut and the guide cylinder are fixedly connected with the pedal, and the nut is further in threaded connection with the lead screw;
the guide rod is connected with the chassis and is in sliding fit with the guide cylinder;
the ladder stand is obliquely arranged, the upper end of the ladder stand is rotatably connected with the pedal, and the lower end of the ladder stand can be overlapped on the chassis.
2. The railway tunnel construction platform of claim 1, wherein:
a lifting block is arranged below the crawling ladder and connected with the chassis; the lifting block comprises an inclined surface, and the inclined surface and the ladder stand are arranged oppositely.
3. The railway tunnel construction platform of claim 1, wherein:
the supporting device also comprises a butting block, and the butting block is detachably connected with the chassis; the abutting block is used for abutting against the bottom of the ladder stand so as to prevent the inclination angle of the ladder stand from becoming smaller.
4. The railway tunnel construction platform of claim 3, wherein:
the chassis is provided with a sliding chute which extends along the sliding direction of the bottom of the crawling ladder; the butt joint block is arranged on the sliding groove and connected with the chassis through a bolt.
5. The railway tunnel construction platform of claim 1, wherein:
the railway tunnel construction platform comprises four guide rods, and the lifting assembly comprises four guide cylinders; the pedal is a rectangular plate, and the four guide cylinders are respectively connected to four corners of the pedal.
6. The railway tunnel construction platform of claim 1, wherein:
a linear bearing is arranged in the guide cylinder, and the guide cylinder is in sliding fit with the guide rod through the linear bearing.
7. The railway tunnel construction platform of claim 1, wherein:
the walking mechanism comprises a chassis, and is characterized by further comprising at least two walking assemblies, wherein each walking assembly comprises a wheel axle and two walking wheels, and the walking wheels are rotatably connected with the chassis through the wheel axles.
8. The railway tunnel construction platform of claim 7, wherein:
flanges are arranged on the inner sides of the walking wheels and extend along the radial direction of the walking wheels.
9. The railway tunnel construction platform of claim 1, wherein: the ladder stand comprises two ladder stands which are respectively connected with two ends of a pedal.
10. The railway tunnel construction platform of claim 1, wherein: the lifting assembly further comprises a guardrail, and the guardrail is connected with the pedal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922361016.6U CN211691372U (en) | 2019-12-22 | 2019-12-22 | Railway tunnel construction platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922361016.6U CN211691372U (en) | 2019-12-22 | 2019-12-22 | Railway tunnel construction platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211691372U true CN211691372U (en) | 2020-10-16 |
Family
ID=72794355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922361016.6U Expired - Fee Related CN211691372U (en) | 2019-12-22 | 2019-12-22 | Railway tunnel construction platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211691372U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115126404A (en) * | 2022-06-24 | 2022-09-30 | 保利长大工程有限公司 | Slidable culvert safety cat ladder |
-
2019
- 2019-12-22 CN CN201922361016.6U patent/CN211691372U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115126404A (en) * | 2022-06-24 | 2022-09-30 | 保利长大工程有限公司 | Slidable culvert safety cat ladder |
| CN115126404B (en) * | 2022-06-24 | 2023-04-21 | 保利长大工程有限公司 | Slidable formula culvert safety cat ladder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201016 Termination date: 20211222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |