CN114323509A - Bridge deflection detection equipment and detection method thereof - Google Patents
Bridge deflection detection equipment and detection method thereof Download PDFInfo
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- CN114323509A CN114323509A CN202111372585.6A CN202111372585A CN114323509A CN 114323509 A CN114323509 A CN 114323509A CN 202111372585 A CN202111372585 A CN 202111372585A CN 114323509 A CN114323509 A CN 114323509A
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- bridge
- positioning seat
- detector
- movable support
- positioning
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Abstract
The invention relates to the technical field of cutting devices, in particular to bridge deflection detection equipment and a detection method thereof; comprises a fixed track, a traveling device and a measuring device; measuring device is including moving movable support, the positioning seat, the detector, locating component and installation component, moving movable support passes through advancing device sliding connection with the trapped orbit, the positioning seat passes through locating component sliding connection with moving movable support, the detector passes through installation component fixed connection with the positioning seat, advancing device sets up on the trapped orbit, and be used for driving moving movable support and remove, locating component sets up on moving movable support, and be used for driving the positioning seat and slide, install trapped orbit at the bridge both ends, start advancing device, make moving movable support back-and-forth movement on the trapped orbit, further start locating component, make the positioning seat drive the detector and control on moving movable support, thereby make the detector carry out comprehensive amount of deflection to the bridge and detect.
Description
Technical Field
The invention relates to the technical field of cutting devices, in particular to bridge deflection detection equipment and a detection method thereof.
Background
When the bridge is stressed or changes in non-uniform temperature in the use process, deflection deformation can be generated, and when the deflection of the bridge exceeds a design value, the safety of the bridge cannot be ensured, so that the detection of the deflection of the bridge is very critical.
The existing deflection detection equipment can only detect the edge of a bridge, but because the load applied to the middle of the bridge is greater than that applied to the edge of a bridge floor, the deflection of the middle of the bridge is greater than that of the edge of the bridge, so that the deflection detection equipment cannot perform comprehensive deflection detection on the bridge.
Disclosure of Invention
The invention aims to provide bridge deflection detection equipment and a detection method thereof, and aims to solve the technical problem that the deflection detection equipment in the prior art can only detect the edge of a bridge, but the deflection of the middle of the bridge is greater than the deflection of the edge of the bridge because the load on the middle of the bridge is greater than the edge of a bridge deck, so that the deflection of the middle of the bridge is greater than the deflection of the edge of the bridge, and the deflection detection equipment cannot perform comprehensive deflection detection on the bridge.
In order to achieve the aim, the invention provides bridge deflection detection equipment which comprises a fixed track, a traveling device and a measuring device, wherein the fixed track is provided with a first guide rail and a second guide rail;
the measuring device comprises a moving support, a positioning seat, a detector, a positioning assembly and a mounting assembly, wherein the moving support is in sliding connection with the fixed track through the advancing device and is located on one side of the fixed track, the positioning seat is in sliding connection with the moving support through the positioning assembly and is located on one side, close to the fixed track, of the moving support, the detector is in fixed connection with the positioning seat through the mounting assembly and is located on one side, close to the fixed track, of the positioning seat, the advancing device is arranged on the fixed track and is used for driving the moving support to move, and the positioning assembly is arranged on the moving support and is used for driving the positioning seat to slide.
The positioning assembly comprises a rotating gear, a positioning rack and a driving member, wherein the rotating gear is rotatably connected with the movable support through the driving member and is positioned on one side of the movable support, which is close to the fixed track; the positioning rack is meshed with the rotating gear, is connected with the movable support in a sliding manner and is positioned on the positioning seat in a fixed connection; the driving component is arranged on the moving bracket and is used for driving the rotating gear to rotate.
The mounting assembly comprises a mounting rod and a mounting table, and the mounting rod is fixedly connected with the positioning seat and is positioned on one side, close to the detector, of the positioning seat; the mounting table is fixedly connected with the mounting rod and the detector respectively, and the mounting table is located on one side, close to the detector, of the mounting rod.
The mounting assembly comprises a mounting rod and a mounting table, and the mounting rod is fixedly connected with the positioning seat and is positioned on one side, close to the detector, of the positioning seat; the mounting table is fixedly connected with the mounting rod and the detector respectively, and the mounting table is located on one side, close to the detector, of the mounting rod.
The traveling device further comprises a traveling motor, the traveling motor is arranged on the fixed track, and the output end of the traveling motor is connected with the traveling rod piece.
The invention provides a bridge deflection detection method, which comprises the following steps,
the fixed rails are arranged at two ends of the bridge, and the advancing motor is started to drive the advancing rod piece to rotate;
the traveling seat moves back and forth so as to drive the movable support to move back and forth;
starting a driving component to drive the rotating gear to rotate;
the positioning rack slides left and right on the movable support, so that the positioning seat moves left and right;
the detector moves left and right, so that the detector can perform comprehensive deflection detection on the bridge.
According to the bridge deflection detection equipment and the detection method thereof, the fixed rails are fixedly arranged at the left end and the right end of the edge of the bridge, the advancing devices are started to enable the movable support to move back and forth in the fixed rails, the positioning assembly is further started to enable the positioning seat to move left and right on the movable support, and the detector is fixedly arranged on the positioning seat through the mounting assembly, so that the detector can move transversely and vertically along the bridge, and further the detector can perform comprehensive deflection detection on the bridge.
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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the bridge deflection detection device provided by the invention.
Fig. 2 is a front view of the bridge deflection detecting apparatus of the present invention.
Fig. 3 is a schematic view of the connection structure of the positioning assembly and the movable support of the present invention.
FIG. 4 is a flow chart of the bridge deflection detection method of the present invention.
In the figure: 1-fixed track, 21-travelling seat, 22-travelling rod, 23-travelling motor, 31-movable support, 32-positioning seat, 33-detector, 341-rotating gear, 342-positioning rack, 351-mounting rod, 352-mounting table, 3431-mounting shaft rod, 3432-rotating belt, 34331-motor body, 34332-output shaft rod and 34333-output shaft sleeve.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 3, the present invention provides a bridge deflection detecting apparatus, which includes a fixed track 1, a traveling device and a measuring device;
the measuring device comprises a movable support 31, a positioning seat 32, a detector 33, a positioning assembly and a mounting assembly, wherein the movable support 31 is in sliding connection with the fixed track 1 through the advancing device and is positioned on one side of the fixed track 1, the positioning seat 32 is in sliding connection with the movable support 31 through the positioning assembly and is positioned on one side, close to the fixed track 1, of the movable support 31, the detector 33 is in fixed connection with the positioning seat 32 through the mounting assembly and is positioned on one side, close to the fixed track 1, of the positioning seat 32, the advancing device is arranged on the fixed track 1 and is used for driving the movable support 31 to move, and the positioning assembly is arranged on the movable support 31 and is used for driving the positioning seat 32 to slide.
In this embodiment, the number of the fixed rails 1 is two, the fixed rails 1 are rectangular guide rails having rectangular sliding grooves with upward openings, the fixed rails 1 are respectively and fixedly installed at the left and right ends of the edge of the bridge, the movable bracket 31 is a bracket shaped like a "door", the movable bracket 31 is slidably connected with the fixed rails 1 through the advancing device and installed above the fixed rails 1, the movable bracket 31 is driven to move back and forth in the fixed rails 1 through the operation of the advancing device, the positioning seat 32 is a rectangular seat, the positioning seat 32 is slidably connected with the movable bracket 31 through the positioning assembly and installed below the movable bracket 31, the positioning seat 32 is driven to move left and right on the movable bracket 31 through the operation of the positioning assembly, the detector 33 is an instrument capable of detecting the deflection of the bridge, the detector 33 and the positioning seat 32 are fixedly connected through the mounting assembly and are mounted below the positioning seat 32, so that the fixed rail 1 is fixedly mounted at the left end and the right end of the edge of the bridge, the advancing device is started to enable the movable support 31 to move back and forth in the fixed rail 1, the positioning assembly is further started to enable the positioning seat 32 to move left and right on the movable support 31, and the detector 33 is fixedly mounted on the positioning seat 32 through the mounting assembly, so that the detector 33 can move transversely and vertically along the bridge, and the detector 33 can perform comprehensive deflection detection on the bridge.
Further, referring to fig. 1 to 3, the positioning assembly includes a rotating gear 341, a positioning rack 342, and a driving member, wherein the rotating gear 341 is rotatably connected to the moving bracket 31 through the driving member and is located at one side of the moving bracket 31 close to the fixed rail 1; the positioning rack 342 is engaged with the rotating gear 341, is connected with the movable bracket 31 in a sliding manner, and is located at the positioning seat 32 and fixedly connected therewith; the driving member is disposed on the moving bracket 31 and drives the rotation gear 341 to rotate.
Further, referring to fig. 1 to 3, the driving member includes a mounting shaft 3431, a rotating belt 3432 and a driving motor, the mounting shaft 3431 is disposed on the moving support 31, rotates with the moving support 31, and is fixed to the rotating gear 341; one side of the rotating belt 3432 is sleeved on the mounting shaft 3431, and one side of the rotating belt 3432 is sleeved on the output end of the driving motor; the driving motor is disposed on the moving bracket 31 and is used to drive the rotating belt 3432 to rotate.
Further, referring to fig. 1 and 3, the driving motor includes a motor body 34331, an output shaft 34332 and an output shaft sleeve 34333, the motor body 34331 is disposed on the movable support 31 and fixed to the movable support 31; the output shaft 34332 is disposed on the motor body 34331 and connected to an output end of the motor body 34331; the output bushing 34333 is disposed on the output shaft 34332 and is fixed to the output shaft 34332.
In this embodiment, the rotating gear 341 is a circular gear having a plurality of teeth on the outer edge, the rotating gear 341 is rotatably connected to the movable bracket 31 through the mounting shaft 3431 and is mounted below the movable bracket 31, the positioning rack 342 is a rectangular rack having a plurality of teeth on the lower end, the positioning rack 342 is externally engaged with the rotating gear 341 and is slidably connected to the movable bracket 31 through a roller and is fixed to the positioning seat 32 through a bolt, the positioning rack 342 is mounted between the movable bracket 31 and the rotating gear 341, the mounting shaft 3431 is a cylindrical rod, the mounting shaft 3431 is rotatably connected to the movable bracket 31 through a supporting seat, the rotating gear 341 is fixedly mounted on the outer side of the mounting shaft 3431, the rotating belt 3432 is annular, one side of the rotating belt 3432 is fitted over the mounting shaft 3431, the other side of the rotating belt 3432 is sleeved on an output shaft sleeve 34333 of the driving motor, the motor body 34331 is fixedly installed at the right end of the movable support 31, the output shaft 34332 is a cylindrical rod, the output shaft 34332 is fixedly connected with the output end of the motor body 34331, the free end of the output shaft 34332 is sleeved with the output shaft sleeve 34333, so that the motor body 34331 is started to drive the output shaft 34332 to rotate left and right, thereby driving the output shaft 34333 to rotate left and right, further driving the rotating belt 3432 to rotate left and right, further driving the installation shaft 3431 to rotate left and right, thereby driving the rotating gear 341 to rotate, further driving the positioning rack 342 to move left and right on the movable support 31, and further driving the positioning seat 32 to move left and right.
Further, referring to fig. 1 and fig. 2, the mounting assembly includes a mounting rod 351 and a mounting table 352, wherein the mounting rod 351 is fixedly connected to the positioning seat 32 and is located at a side of the positioning seat 32 close to the detecting instrument 33; the mounting table 352 is fixedly connected to the mounting rod 351 and the detector 33, respectively, and the mounting table 352 is located on a side of the mounting rod 351 close to the detector 33.
In this embodiment, the mounting rod 351 is a cylindrical rod, the mounting rod 351 is fixedly mounted below the positioning seat 32, the mounting table 352 is a circular table, the mounting table 352 is fixedly mounted below the mounting rod 351 and fixedly connected to the measuring instrument 33 by a bolt, and the mounting rod 351 and the mounting table 352 support the measuring instrument 33, so that the connection between the measuring instrument 33 and the positioning seat 32 is further tightened by the supporting action of the mounting rod 351 and the mounting table 352.
Further, referring to fig. 1, the traveling device includes a traveling seat 21 and a traveling rod 22, the traveling seat 21 is slidably connected to the fixed rail 1, and is fixedly connected to the movable bracket 31, and is located on one side of the fixed rail 1 close to the movable bracket 31; the traveling rod 22 is rotatably connected to the fixed rail 1, penetrates through the traveling base 21, and is located on one side of the fixed rail 1 close to the traveling base 21.
Further, referring to fig. 1, the traveling device further includes a traveling motor 23, the traveling motor 23 is disposed on the fixed rail 1, and an output end of the traveling motor 23 is connected to the traveling rod 22.
In this embodiment, the traveling base 21 is a rectangular base with a threaded hole, the traveling base 21 is slidably mounted in a sliding groove of the fixed rail 1 through an internal roller and is fixedly connected with the movable bracket 31 through a bolt, the traveling rod 22 is a cylindrical rod with an external thread, the external thread of the traveling rod is matched with the threaded hole of the traveling base 21, the traveling rod is rotatably connected with the fixed rail 1 through a bearing, penetrates through the traveling base 21 through the threaded hole and is mounted in the fixed rail 1, the traveling motor 23 is fixedly mounted at the right end of the fixed rail 1, the output end of the traveling motor 23 is fixedly connected with the traveling rod 22, so that the traveling motor 23 is started to drive the traveling rod 22 to rotate left and right, thereby driving the traveling base 21 to move back and forth in the fixed rail 1, thereby moving the moving bracket 31 forward and backward.
Referring to fig. 4, the present invention provides a method for detecting a deflection of a bridge, comprising the following steps,
s601: the fixed rails 1 are installed at two ends of the bridge, and the advancing motor is started to drive the advancing rod piece 22 to rotate;
s602: the traveling base 21 moves forward and backward, thereby driving the moving bracket 31 to move forward and backward;
s603: the driving member is started to drive the rotating gear 341 to rotate;
s604: the positioning rack 342 slides left and right on the movable bracket 31, so that the positioning seat 32 moves left and right;
s605: the detector 33 moves left and right, so that the detector 33 can detect the comprehensive deflection of the bridge.
In this embodiment, the fixed rail 1 is fixedly installed at two ends of a bridge, the forward motor is started to drive the forward rod 22 to rotate left and right, so as to drive the forward seat 21 to move back and forth in the fixed rail 1, so as to drive the moving bracket 31 to move back and forth, and further start the motor body 34331, so as to drive the output shaft 34332 to rotate left and right, so as to drive the output shaft 34333 to rotate left and right, so as to drive the rotating belt 3432 to rotate, further drive the installation shaft 3431 to rotate, so as to drive the rotating gear 341 to rotate left and right, so as to drive the positioning rack 342 to slide left and right, so as to move the positioning seat 32 left and right on the moving bracket 31, and since the detector 33 is fixedly installed on the positioning seat 32 through the installation component, so as to enable the detector 33 to move horizontally and vertically along the bridge, and then the detector 33 detects the comprehensive deflection of the bridge.
According to the bridge deflection detection equipment and the detection method thereof, the fixed rail 1 is fixedly arranged at the left end and the right end of the edge of a bridge, the advancing device is started to enable the movable support 31 to move back and forth in the fixed rail 1, the positioning assembly is further started to enable the positioning seat 32 to move left and right on the movable support 31, and the detector 33 is fixedly arranged on the positioning seat 32 through the mounting assembly, so that the detector 33 can move transversely and vertically along the bridge, and the detector 33 can perform comprehensive deflection detection on the bridge.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The bridge deflection detection equipment is characterized by comprising a fixed track, a traveling device and a measuring device;
the measuring device comprises a moving support, a positioning seat, a detector, a positioning assembly and a mounting assembly, wherein the moving support is in sliding connection with the fixed track through the advancing device and is located on one side of the fixed track, the positioning seat is in sliding connection with the moving support through the positioning assembly and is located on one side, close to the fixed track, of the moving support, the detector is in fixed connection with the positioning seat through the mounting assembly and is located on one side, close to the fixed track, of the positioning seat, the advancing device is arranged on the fixed track and is used for driving the moving support to move, and the positioning assembly is arranged on the moving support and is used for driving the positioning seat to slide.
2. The bridge deflection detection apparatus of claim 1,
the positioning assembly comprises a rotating gear, a positioning rack and a driving member, the rotating gear is rotatably connected with the movable support through the driving member and is positioned on one side of the movable support, which is close to the fixed track; the positioning rack is meshed with the rotating gear, is connected with the movable support in a sliding manner and is positioned on the positioning seat in a fixed connection; the driving component is arranged on the moving bracket and is used for driving the rotating gear to rotate.
3. The bridge deflection detection apparatus of claim 1,
the mounting assembly comprises a mounting rod and a mounting table, the mounting rod is fixedly connected with the positioning seat and is positioned on one side, close to the detector, of the positioning seat; the mounting table is fixedly connected with the mounting rod and the detector respectively, and the mounting table is located on one side, close to the detector, of the mounting rod.
4. The bridge deflection detection apparatus of claim 1,
the advancing device comprises an advancing seat and an advancing rod piece, wherein the advancing seat is connected with the fixed track in a sliding manner, is fixedly connected with the movable support and is positioned on one side of the fixed track close to the movable support; the advancing rod is rotatably connected with the fixed track, penetrates through the advancing seat and is positioned on one side, close to the advancing seat, of the fixed track.
5. A bridge deflection detection apparatus according to claim 4,
the traveling device further comprises a traveling motor, the traveling motor is arranged on the fixed track, and the output end of the traveling motor is connected with the traveling rod piece.
6. A bridge deflection detection method is characterized in that the bridge deflection detection equipment as claimed in claim 1 to claim 5 is adopted, and comprises the following steps,
the fixed rails are arranged at two ends of the bridge, and the advancing motor is started to drive the advancing rod piece to rotate;
the traveling seat moves back and forth so as to drive the movable support to move back and forth;
starting a driving component to drive the rotating gear to rotate;
the positioning rack slides left and right on the movable support, so that the positioning seat moves left and right;
the detector moves left and right, so that the detector can perform comprehensive deflection detection on the bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111372585.6A CN114323509A (en) | 2021-11-18 | 2021-11-18 | Bridge deflection detection equipment and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111372585.6A CN114323509A (en) | 2021-11-18 | 2021-11-18 | Bridge deflection detection equipment and detection method thereof |
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| Publication Number | Publication Date |
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| CN114323509A true CN114323509A (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111372585.6A Pending CN114323509A (en) | 2021-11-18 | 2021-11-18 | Bridge deflection detection equipment and detection method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100981160B1 (en) * | 2009-11-30 | 2010-09-10 | (주)디에스지 | Moving type bridge inspection frame for drive device whitin moving of inspection frame |
| KR20110034794A (en) * | 2009-09-29 | 2011-04-06 | 현대로템 주식회사 | Load applying apparatus for testing vehicle-launched bridge |
| CN106272591A (en) * | 2016-08-29 | 2017-01-04 | 成都知人善用信息技术有限公司 | A kind of newspaper cutting machine promoting safety coefficient |
| CN110672425A (en) * | 2019-11-14 | 2020-01-10 | 苏州科联建设工程质量检测有限公司 | Bridge bearing capacity detection device and detection method |
| CN210154768U (en) * | 2019-05-09 | 2020-03-17 | 广东荣骏建设工程检测股份有限公司 | Bridge load test deflection detection device |
| CN210922537U (en) * | 2019-12-30 | 2020-07-03 | 刘涵 | Device for measuring dynamic deflection of bridge |
| CN111537169A (en) * | 2020-05-11 | 2020-08-14 | 中国建筑第七工程局有限公司 | Movable bridge deflection detector |
-
2021
- 2021-11-18 CN CN202111372585.6A patent/CN114323509A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110034794A (en) * | 2009-09-29 | 2011-04-06 | 현대로템 주식회사 | Load applying apparatus for testing vehicle-launched bridge |
| KR100981160B1 (en) * | 2009-11-30 | 2010-09-10 | (주)디에스지 | Moving type bridge inspection frame for drive device whitin moving of inspection frame |
| CN106272591A (en) * | 2016-08-29 | 2017-01-04 | 成都知人善用信息技术有限公司 | A kind of newspaper cutting machine promoting safety coefficient |
| CN210154768U (en) * | 2019-05-09 | 2020-03-17 | 广东荣骏建设工程检测股份有限公司 | Bridge load test deflection detection device |
| CN110672425A (en) * | 2019-11-14 | 2020-01-10 | 苏州科联建设工程质量检测有限公司 | Bridge bearing capacity detection device and detection method |
| CN210922537U (en) * | 2019-12-30 | 2020-07-03 | 刘涵 | Device for measuring dynamic deflection of bridge |
| CN111537169A (en) * | 2020-05-11 | 2020-08-14 | 中国建筑第七工程局有限公司 | Movable bridge deflection detector |
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