CN210561722U - Bridge inspection vehicle portal system suitable for variable-gradient walking - Google Patents
Bridge inspection vehicle portal system suitable for variable-gradient walking Download PDFInfo
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- CN210561722U CN210561722U CN201921185496.9U CN201921185496U CN210561722U CN 210561722 U CN210561722 U CN 210561722U CN 201921185496 U CN201921185496 U CN 201921185496U CN 210561722 U CN210561722 U CN 210561722U
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- frame
- gantry
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- walking
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- 210000004258 portal system Anatomy 0.000 title claims abstract description 8
- 238000007689 inspection Methods 0.000 title claims description 25
- 230000007246 mechanism Effects 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The utility model discloses a car portal system is examined to bridge suitable for slope-variable walking, interior portal including frame and both ends, well portal, convex outer portal and walk capable portion, convex outer portal slidingtype is installed on walking the convex track on capable portion, well portal passes through slewing bearing and installs on convex outer portal, the frame end inserts in the portal, set up the spout and rotate through the connecting piece of constituteing jointly by slider section and pivot section along the vertical level of frame on the interior portal of frame one end and install in well portal, establish axis perpendicular to frame fore-and-aft circular shaft hole two on the interior portal of the frame other end and rotate the frame and interior portal jointly through the connecting piece of pivot form and install in well portal. The utility model discloses when variable gradient bridge floor walking such as arched bridge, can adjust the horizontal angle of frame, the frame that running gear asynchronous brought about also can adapt to about also changes, the frame length is flexible, the frame hangs the problem of difference in height about the point.
Description
Technical Field
The utility model relates to a car portal system is examined to bridge suitable for variable slope walking belongs to road bridge inspection repair tools technical field.
Background
In recent years, bridge inspection vehicles (hereinafter referred to as bridge inspection vehicles) are increasingly applied to newly-built bridges or reconstruction of existing bridges, and generally bridge inspection vehicle structures are divided into three main structural components, namely a traveling part, a gantry and a vehicle frame. The frame is used for bearing maintenance equipment and personnel, and the portal is used for connecting the walking part with the frame. Due to different bridge structures, the bridge inspection vehicle generally has two or more walking parts, generally a left walking part and a right walking part, and the walking parts on the two sides can have inconsistent speed in the walking process to cause the deflection of the vehicle frame, so that the portal frame needs to have a structure suitable for the deflection, and the jamming of the walking parts or the distortion of the vehicle frame are avoided.
The typical bridge inspection vehicle travels at the bottom or top of a beam (the beam is generally a steel box beam or a steel truss beam), the bridge inspection vehicle is supported by two rails, the left and right traveling parts are respectively arranged, the frame crosses the whole bridge, the rails are horizontal or inclined, but the gradient is generally not changed, theoretically, the traveling parts on the left and right sides should be completely synchronous, and the connecting line included angle between the frame and the rails is 90 degrees. However, in practice, the left and right running gears cannot run without errors, and the distance between the left and right rails is also in error, so that when the left and right running gears are not synchronous, the included angle between the connecting line between the running gears and the running rail of the bridge inspection vehicle is smaller than 90 degrees, and the distance between the left and right door frames is increased. Therefore, a typical portal frame of the bridge inspection vehicle is provided with a fixed portal frame on one side and a movable portal frame on the other side, the fixed portal frame is connected with the vehicle frame only by releasing one horizontal rotation, and the connection of the movable portal frame and the vehicle frame also satisfies the sliding of the vehicle frame in the transverse bridge direction except for releasing the horizontal rotation.
When the bridge inspection vehicle runs on bridges with changeable track inclination angles such as arch bridges or variable-section steel truss bridges, the change of the track inclination angles requires the vehicle frame to adjust the self horizontal angle, so that the inspection platform is kept horizontal. According to the traditional design method of the portal frame for the bridge inspection vehicle, a hinge or an arc frame with a horizontal angle is added on the basis of a translational portal frame, but the inclination angles and the heights of different positions of an arch bridge or an arc bridge deck are different, when a left walking part and a right walking part are synchronous, the problem can be solved by adding a hinge release swing freedom degree, when the left walking part and the right walking part are asynchronous, the heights of the portal frames on the left side and the right side are different, the centers of the rotation circles of the hinges on the left side and the right side are not at the same height, the twisting or leveling hinge mechanism can be blocked, and therefore more degrees of freedom need to be released by the portal frame and the frame.
SUMMERY OF THE UTILITY MODEL
The invention of the utility model aims to: aiming at the existing problems, a novel portal structure of the portal system of the bridge inspection vehicle suitable for gradient-variable walking is designed from the research of the degree of freedom of the mechanism.
The utility model discloses a technical scheme be like:
a portal system of a bridge inspection vehicle suitable for gradient-variable walking comprises a vehicle frame, portal assemblies at two ends of the vehicle frame and a walking part, the gantry assembly comprises an inner gantry, a middle gantry and an arc-shaped outer gantry, the walking part is provided with an arc-shaped track, the arc-shaped outer gantry is slidably arranged on the arc-shaped track, the middle gantry is arranged on the arc-shaped outer gantry through a slewing bearing at the bottom of the middle gantry, the end of the frame is inserted into the inner door frame, a sliding groove is horizontally arranged on the inner door frame at one end of the frame along the longitudinal direction of the frame and is rotatably installed in the middle door frame in a horizontal sliding and rotating mode through a connecting piece formed by the sliding block section and the rotating shaft section, the part, used for installing the rotating shaft, on the inner door frame at the other end of the frame is a circular shaft hole II with the axis vertical to the longitudinal direction of the frame, and the frame and the inner door frame are rotatably installed in the middle door frame through the connecting piece in the form of the rotating shaft.
In the technical scheme, the part of the middle door frame for installing the connecting piece is a circular shaft hole III.
Since the technical scheme is used, the beneficial effects of the utility model are that:
1. the arc-shaped outer gantry can swing on an arc-shaped track on the walking part, and a rotating shaft of the arc-shaped outer gantry is in the horizontal direction of the transverse bridge, so that the gantry leveling function during the gradient change of the track can be realized;
2. the middle portal frame is arranged on the arc-shaped outer portal frame through a slewing bearing with a connecting shaft in the vertical direction, so that the frame can swing in a horizontal plane, and the horizontal swing adaptation effect of the frame which walks asynchronously left and right is realized;
3. the connecting shaft between the inner portal frame and the middle portal frame is in a horizontal position along the bridge direction, so that the vertical swinging adaptation function of the frame when the left and right traveling parts are different in height can be realized;
4. the frame is in telescopic connection with the inner portal frame, so that the problem that the distance between the left portal frame and the right portal frame is lengthened when the left walking part and the right walking part are not synchronous can be solved;
5. by releasing the degrees of freedom of the outer door frame, the middle door frame, the inner door frame and the frame, the bridge inspection vehicle can adjust the horizontal angle of the door frame when walking on the variable-gradient track, and can adapt to the influence of rotation, expansion and height difference of the door frame caused by asynchronization of the left walking part and the right walking part.
6. When the bridge inspection vehicle travels on a variable-gradient bridge floor such as an arch bridge, the horizontal angle of the frame can be adjusted, the problems of frame and rail included angle change, frame length expansion, frame hanging point left and right height difference caused by asynchronization of left and right travelling mechanisms can be solved, the traveling of the bridge inspection vehicle on the variable-gradient bridge is smoother, the abrasion of a mechanical structure is lower, and the safety and the service life are longer.
Alternatively, the sliding block section of the connecting piece can also directly realize the expansion and contraction of the frame in a mode that a rolling pair rolls in the sliding groove without a sliding bearing surface, but the contact is linear contact, so that the stress of parts is larger.
Preferably, the arc-shaped outer gantry and the arc-shaped track are rotated by a motor to drive the gear and the rack. Preferably, a rack is arranged in the middle of a sliding surface, in contact with a circular arc contact surface on the circular arc track, of the bottom of the circular arc outer gantry, a gear driven by a motor is installed at the end of the circular arc track, the gear drives the rack to drive the circular arc outer gantry to rotate on the circular arc track when rotating, and limit baffles are installed on two sides of the sliding surface. The position of the outer gantry on the circular arc track can be controlled through the motor, so that the leveling of the gantry is realized. Preferably, the sliding surface of the illustration 601 may be designed as a roller bearing surface, and the circular arc outer door frame may swing on a circular arc track.
Preferably, the central axis of the circular arc track, the central axis of rotation of the slewing bearing and the axis of the connecting piece intersect at the same point. The gantry assembly is formed by the outer, middle and inner three layers of gantries together, the three layers of gantries in the gantry assembly are provided with a rotating shaft, the three rotating shafts form three mutually vertical rotatable shaft mechanisms, and the center lines of the three shafts are intersected at one point, so that the rotational freedom degrees of the gantry in three directions of an X longitudinal bridge axial direction, a Y vertical axial direction and a Z transverse bridge axial direction are effectively released. The inner door frame and the middle door frame are axially connected through an X-shaped longitudinal bridge and can rotate in a transverse bridge-direction vertical plane; the middle door frame and the outer door frame are connected in a Y vertical axial direction through a swing mechanism at the bottom of the middle door frame and can rotate in a horizontal plane, and an X axis and a Y axis are intersected at a central point; the outer part of the outer gantry is in a circular arc shape and is in butt joint with a circular arc track on the walking part, the circle center of the circular arc is positioned on the center point, and the whole gantry can swing in a vertical plane in the longitudinal bridge direction through the sliding of the outer gantry on the circular arc track surface.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is an exploded view of one end of the present invention.
Fig. 3 is an exploded view of the other end of the present invention.
Fig. 4 is an end view of the present invention.
The labels in the figure are:
the frame is 1, the inner gantry is 2, the middle gantry is 3, the slewing bearing is 4, the arc-shaped outer gantry is 5, the arc-shaped track is 6, and the walking part is 7;
201 is a sliding groove, 202 is a connecting piece, and 203 is a second shaft hole;
301 is a shaft hole III;
501 is a limit baffle, 502 is a sliding surface, 503 is a rack;
601 is a circular arc contact surface and 602 is a gear.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Example (b):
as shown in fig. 1, the portal frame system for the bridge inspection vehicle suitable for gradient-variable walking comprises a vehicle frame 1, portal frame assemblies at two ends of the vehicle frame 1 and a walking part 7, wherein each portal frame assembly comprises an inner portal frame 2, a middle portal frame 3 and an arc-shaped outer portal frame 5, an arc-shaped track 6 is installed on the walking part 7, the arc-shaped outer portal frames 5 are installed on the arc-shaped track 6 in a sliding mode, the middle portal frames 3 are installed on the arc-shaped outer portal frames 5 through slewing bearings 4 at the bottoms of the middle portal frames 3, and the ends of the vehicle frame 1 are inserted into the inner portal frames 2.
The inner gantry 2 at one end of the frame 1 is horizontally provided with a sliding chute 201 along the longitudinal direction of the frame 1 and is rotatably installed in the middle gantry 3 in a horizontal sliding and rotating mode through a connecting piece 202 (a component marked as 202 in fig. 2) formed by a sliding block section and a rotating shaft section together, as shown in fig. 2.
The part of the inner door frame 2 at the other end of the frame 1 for installing the rotating shaft is a circular shaft hole II 201 with the axis vertical to the longitudinal direction of the frame 1, and the frame 1 and the inner door frame 2 are installed in the middle door frame 3 in a co-rotating mode through a connecting piece 202 in the form of the rotating shaft, as shown in figure 3.
The part of the middle door frame 3 for installing the connecting piece 202 is a circular shaft hole III 301.
The arc-shaped outer gantry 5 and the arc-shaped track 6 rotate through the mode of driving the gear 602 and the rack 503 by the motor. The rack 503 is arranged in the middle of the sliding surface 502, which is in contact with the arc contact surface 601 on the arc track 6, at the bottom of the arc outer gantry 5, and correspondingly, the gear 602 driven by the motor is installed at the end of the arc track 6, the gear 602 drives the rack 503 to drive the arc outer gantry 5 to rotate on the arc track 6 when rotating, and the limit baffles 501 are installed on the two sides of the sliding surface 502.
The circular arc-shaped contact surface 601 may be a contact surface in a sliding manner of a sliding plate, or may be a contact surface in a rolling manner of a roller.
The central axis of the circular arc track 6, the central axis of rotation of the rotary support 4 and the axis of the connecting piece 202 are intersected at the same point, as shown in fig. 4.
The inner door frame 2 is connected with the frame 1, and can be manufactured or fixedly connected with the frame 1 into a whole in actual operation.
Claims (5)
1. The utility model provides a bridge inspection car portal system suitable for slope-variable walking, includes portal subassembly and the walking portion (7) of frame (1) and both ends, its characterized in that: the gantry assembly comprises an inner gantry (2), a middle gantry (3) and an arc-shaped outer gantry (5), wherein an arc-shaped track (6) is mounted on a walking part (7), the arc-shaped outer gantry (5) is slidably mounted on the arc-shaped track (6), the middle gantry (3) is mounted on the arc-shaped outer gantry (5) through a slewing bearing (4) at the bottom of the middle gantry, the end of the frame (1) is inserted into the inner gantry (2), a sliding groove (201) is horizontally arranged on the inner gantry (2) at one end of the frame (1) along the longitudinal direction of the frame (1) and is rotatably mounted in the middle gantry (3) in a horizontal sliding and rotating mode through a connecting piece (202) which is jointly composed of a sliding block section and a rotating shaft section, the part, used for mounting the rotating shaft, on the inner gantry (2) at the other end of the frame (1) is a circular shaft hole II (203) with the axis vertical to the frame (1) and rotates the frame (1) and the inner gantry (2) together through Is arranged in the middle door frame (3).
2. The bridge inspection vehicle gantry system suitable for variable-gradient walking of claim 1, wherein: the part of the middle door frame (3) for installing the connecting piece (202) is a circular shaft hole III (301).
3. The bridge inspection vehicle gantry system suitable for variable-gradient walking of claim 1, wherein: the arc-shaped outer gantry (5) and the arc-shaped track (6) rotate through the mode of driving a gear (602) and a rack (503) by a motor.
4. The portal system of bridge inspection vehicle suitable for variable-gradient walking of claim 3, wherein: a rack (503) is arranged in the middle of a sliding surface (502) of the bottom of the circular arc-shaped outer door frame (5) in contact with a circular arc-shaped contact surface (601) on the circular arc-shaped track (6), a gear (602) driven by a motor is installed at the end of the circular arc-shaped track (6), the gear (602) drives the rack (503) to drive the circular arc-shaped outer door frame (5) to rotate on the circular arc-shaped track (6) when rotating, and limit baffles (501) are installed on two sides of the sliding surface (502).
5. The bridge inspection vehicle gantry system suitable for variable-gradient walking of claim 1, wherein: the central axis of the circular arc track (6), the rotary central axis of the rotary support (4) and the axis of the connecting piece (202) are intersected at the same point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921185496.9U CN210561722U (en) | 2019-07-25 | 2019-07-25 | Bridge inspection vehicle portal system suitable for variable-gradient walking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921185496.9U CN210561722U (en) | 2019-07-25 | 2019-07-25 | Bridge inspection vehicle portal system suitable for variable-gradient walking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210561722U true CN210561722U (en) | 2020-05-19 |
Family
ID=70632755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921185496.9U Withdrawn - After Issue CN210561722U (en) | 2019-07-25 | 2019-07-25 | Bridge inspection vehicle portal system suitable for variable-gradient walking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210561722U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110468703A (en) * | 2019-07-25 | 2019-11-19 | 成都市新筑路桥机械股份有限公司 | A kind of bridge-checking vehicle portal frame system suitable for becoming gradient walking |
-
2019
- 2019-07-25 CN CN201921185496.9U patent/CN210561722U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110468703A (en) * | 2019-07-25 | 2019-11-19 | 成都市新筑路桥机械股份有限公司 | A kind of bridge-checking vehicle portal frame system suitable for becoming gradient walking |
| CN110468703B (en) * | 2019-07-25 | 2024-03-01 | 成都市新筑交通科技有限公司 | Bridge inspection vehicle door frame system suitable for variable gradient walking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240110 Address after: 611400 No. 799, hope road, Wujin street, Xinjin District, Chengdu, Sichuan (Industrial Park) Patentee after: Chengdu Xinzhu Transportation Technology Co.,Ltd. Address before: 611430 Xinjin Industrial Park, Xinjin County, Chengdu City, Sichuan Province Patentee before: CHENGDU XINZHU ROAD & BRIDGE MACHINERY Co.,Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200519 Effective date of abandoning: 20240301 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200519 Effective date of abandoning: 20240301 |