CN104691519A - Anti-rollover mechanism and system for truss type bridge inspection vehicle - Google Patents
Anti-rollover mechanism and system for truss type bridge inspection vehicle Download PDFInfo
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- CN104691519A CN104691519A CN201510023994.3A CN201510023994A CN104691519A CN 104691519 A CN104691519 A CN 104691519A CN 201510023994 A CN201510023994 A CN 201510023994A CN 104691519 A CN104691519 A CN 104691519A
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- support
- truss
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- horizontal
- oil cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S9/00—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
- B60S9/02—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting
- B60S9/10—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting by fluid pressure
- B60S9/12—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting by fluid pressure of telescopic type
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- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses an anti-rollover mechanism for a truss type bridge inspection vehicle. The mechanism comprises four self-propelled support wheels (10) mounted at the bottom end of an auxiliary frame, auxiliary support wheels (20) arranged on one side in the truss extension direction, horizontal telescopic oil cylinders (24), vertical support leg oil cylinders (25) and support traveling wheels (26) at lower ends of the vertical support legs, wherein each auxiliary support wheel comprises a horizontal support leg box (21) mounted on an upper vehicle auxiliary beam (30), an L-shaped telescopic support leg (22) and a vertical support leg (23), one end of each L-shaped telescopic support leg is sleeved with each horizontal support leg box, and each vertical support leg is sleeved with the other end of each L-shaped telescopic support leg. The bridge inspection vehicle has at least six support points, and support forces of the auxiliary support wheels can be adjusted dynamically, so that the whole vehicle is balanced bilaterally and is kept in the safety coefficient range.
Description
Technical field
The present invention relates to a kind of anti-overturn mechanism and system of bridge inspection car, particularly relate to a kind of anti-overturn mechanism and system of truss-type bridge tool car, belong to bridge maintenance, safeguard technical field of mechanical equipment.
Background technology
Bridge inspection car is a kind of specialized equipment for bridge machinery.Truss-type bridge tool car is the one of bridge inspection car, adopts channel type workplatform, good stability, and load-carrying capacity is large, and during use, testing staff can enter platform from bridge floor easily or return bridge floor.
Truss-type bridge tool car forms primarily of chassis vehicle, top equipment, hydraulic efficiency pressure system and electric-control system four part, during mode of operation, top equipment need stretch out under car arrives bridge outward by tool car, truss own wt will produce moment loading to tire fulcrum in this process, and vehicle body has the trend of tumbling.In order to ensure the balance of car load, existing truss-type bridge tool car adopts and installs stabiliser mechanism additional, to ensure the safety of operating personal to greatest extent.Described stabiliser mechanism comprises the static balance weight and kinetic balance weight that are arranged on subframe top and the self-travel type being arranged on subframe bottom supports castor, and described static balance is heavily generally fixed weight, and kinetic balance heavily comprises telescopic oil cylinder and extendable weight; Self-travel type support wheel totally four groups, be arranged on front and back and the both sides of subframe respectively, comprise support oil cylinder, support and supporting leg wheel, support oil cylinder both can make supporting leg be in liftoff state when walking, can also, when testing, supporting leg be made to take turns extruding ground to ensure car load balance and stability.When the truss of bridge inspection car extend out under bridge, self-travel type support wheel starts to extrude ground and forms four strong points, makes car load center of gravity in areal of support safety zone scope, can also ensure the balance and stability of car load.But because service personnel needs walking to carry out observation maintenance to the different parts of bridge on truss, therefore car load center-of-gravity position can be made to change, thus cause car load center of gravity to have the tendency exceeding areal of support, when supporting ground unfairness, center of gravity is easily caused to exceed areal of support, cause car load to tumble, cause serious safety misadventure.
Summary of the invention
For solving the problem, the invention provides a kind of anti-overturn mechanism and system of truss-type bridge tool car, increase the stability of car load, the bearing force of dynamic conditioning tool car, makes it to remain state of equilibrium, improves the safety factor of bridge inspection car.
Technical scheme adopted to achieve these goals: a kind of anti-overturn mechanism of truss-type bridge tool car, comprise the self-travel type support wheel that four groups are arranged on subframe bottom, also comprise the auxiliary support wheel being arranged on and stretching out phase the same side, direction with truss, described auxiliary support wheel comprises and is arranged on the horizontal support legs case of getting on the bus on attaching beam, L shape telescopic outrigger and vertical leg, one end of L shape telescopic outrigger is sleeved on the inside of horizontal support legs case, and vertical leg is sleeved on the inside of the L shape telescopic outrigger other end; Horizontal telescoping oil cylinder one end is connected in horizontal support legs case, and the other end is connected in L shape telescopic outrigger; Vertical support oil cylinder one end is connected in the supporting leg of L shape telescopic outrigger vertical direction, and the other end is connected in vertical leg, and the lower end of vertical leg is provided with support road wheel.
The present invention improves on prior art basis, change four of existing highway bridge tool car strong points at least six strong points, when the truss of bridge inspection car stretches out work, horizontal telescoping oil cylinder and vertical support oil cylinder stretch out successively, auxiliary support wheel and other four self-travel type support wheels are jointly for bridge inspection car provides support power, further increase right side moment, auxiliary support wheel according to the size of its bearing force of Gravity changer dynamic conditioning of right side truss, thus can make car load left-right balance and remains within the scope of safety factor simultaneously.
Further, mechanism also comprises PLC, multichannel combine valve, alarm unit and pressure sensing cell, described pressure sensing cell is be arranged on the pressure sensor on vertical support oil cylinder in-line, the pressure signal detected is delivered to PLC by pressure sensor, PLC passes through the flexible of four support oil cylinders of multichannel combine valve level of control telescopic oil cylinder, vertical support oil cylinder and self-travel type support wheel, and alarm unit is connected with PLC.
When PLC monitors the pressure change of auxiliary support wheel, can, according to the oil pressure of the program dynamic conditioning vertical support oil cylinder preset, its bearing force be met the demands; If pressure exceeds safe range, PLC outputs signal to alarm unit and reports to the police.
Further, the upper end of attaching beam of getting on the bus is provided with horizontal measuring instrument, and horizontal measuring instrument is connected with alarm unit.Level indicator has obliquity sensor, and set safe inclination angle scope, when horizontal measuring instrument detects that angle of inclination exceeds safe range, illustrate that car load has the trend of tumbling, signal is delivered to alarm unit and reports to the police by horizontal measuring instrument in time, further increases the safety factor of car load.
Further, described auxiliary support wheel is two groups, is separately positioned on the rear and front end of subframe.
The wheel hub overcoat rubber sleeve of described support road wheel.Improve the resistance to abrasion of road wheel on the one hand, the effect playing damping in bridge inspection car driving process can be made on the other hand.
The in-line of horizontal telescoping oil cylinder and vertical support oil cylinder is provided with hydraulic lock.Because the supporting time of auxiliary support wheel is longer, and kinematic velocity is not high, and hydraulic lock can lock hydraulic actuating cylinder when system loses suddenly pressure simultaneously, prevents safety misadventure.
Accompanying drawing explanation
Fig. 1 is the front view of the anti-overturn mechanism of truss-type bridge tool car;
Fig. 2 is the birds-eye view of Fig. 1;
Fig. 3 is the cutaway view of auxiliary support wheel;
Fig. 4 is right elevation and the force diagram (truss is vertical mode of operation) of Fig. 1;
Fig. 5 is the rollover prevention system schematic diagram of truss-type bridge tool car.
In figure: 10, self-travel type support wheel, 20, auxiliary support wheel; 21, horizontal support legs case; 22, L shape telescopic outrigger; 23, vertical leg; 24, horizontal telescoping oil cylinder; 25, vertical support oil cylinder; 26, road wheel is supported; 30, to get on the bus attaching beam.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1 to Figure 3, a kind of anti-overturn mechanism of truss-type bridge tool car, comprise the self-travel type support wheel 10 that four groups are arranged on subframe bottom, this mechanism also comprises the auxiliary support wheel 20 being arranged on and stretching out phase the same side, direction with truss, described auxiliary support wheel 20 comprises and is arranged on the horizontal support legs case 21 of getting on the bus on attaching beam 30, L shape telescopic outrigger 22 and vertical leg 23, one end of L shape telescopic outrigger 22 is sleeved on the inside of horizontal support legs case 21, and vertical leg 23 is sleeved on the inside of L shape telescopic outrigger 22 other end; Horizontal telescoping oil cylinder 24 one end is connected in horizontal support legs case 21, and the other end is connected in L shape telescopic outrigger 22; Vertical support oil cylinder 25 one end is connected in the supporting leg of L shape telescopic outrigger 22 vertical direction, and the other end is connected in vertical leg 23, and the lower end of vertical leg 23 is provided with and supports road wheel 26.
The present invention improves on prior art basis, change four of existing highway bridge tool car strong points at least six strong points, when the truss of bridge inspection car stretches out work, horizontal telescoping oil cylinder 24 and vertical support oil cylinder 25 stretch out successively, auxiliary support wheel 20 and other four self-travel type support wheels 10 are jointly for bridge inspection car provides support power, further increase the support moment on right side, auxiliary support wheel can according to the size of its bearing force of Gravity changer dynamic conditioning of right side truss simultaneously, thus make car load left-right balance and remain within the scope of safety factor.
As shown in Figure 4, when whole truss is in vertical direction, it is the moment the most dangerous in whole expansion process under this operating mode, with right side wheels for the axis that topples, the stressed of right side comprises base gravity G2, sliding rack and swivel mount gravity G3, truss gravity G4, the bearing force Fa of right side self-travel type support wheel and auxiliary support wheel bearing force Fc, the stressed gross weight G1 comprising chassis vehicle and subframe in left side, the heavy P1 of static balance, the heavy P2 of kinetic balance, moment on the left of the bearing force Fb of left side self-travel type support wheel and be M1, right side moment and be M2, in order to ensure safety, balanced basis is got a safety factor k, M1=k × M2, in order to reach the kinetic balance of mode of operation, the size that can adjust auxiliary support wheel bearing force Fc is at any time in stable equilibrium state to make car load.
As shown in Figure 5, mechanism also comprises PLC, multichannel combine valve, alarm unit and pressure sensing cell, described pressure sensing cell is be arranged on the pressure sensor on vertical support oil cylinder 25 in-line, the pressure signal detected is delivered to PLC by pressure sensor, PLC passes through the flexible of four support oil cylinders of multichannel combine valve level of control telescopic oil cylinder 24, vertical support oil cylinder 25 and self-travel type support wheel, and alarm unit is connected with PLC.
When PLC monitors the pressure change of auxiliary support wheel 20, according to the oil pressure of the program dynamic conditioning vertical support oil cylinder 25 preset, PLC can preset safe pressure scope P1 ~ P2.If pressure is higher than P2, the electromagnetic proportional valve in adjustment multichannel combine valve, makes it lower than P2-5bar; If pressure is lower than P1, the electromagnetic proportional valve in adjustment multichannel combine valve, makes it higher than P1+5bar, its bearing force is met the demands; If pressure exceeds safe range, PLC outputs signal to alarm unit and reports to the police.
The get on the bus upper end of attaching beam 30 is provided with horizontal measuring instrument, and horizontal measuring instrument is connected with alarm unit.Level indicator has obliquity sensor, and set safe inclination angle scope, when horizontal measuring instrument detects that angle of inclination exceeds safe range, illustrate that car load has the trend of tumbling, signal is delivered to alarm unit and reports to the police by horizontal measuring instrument in time, further increases the safety factor of car load.
The in-line of horizontal telescoping oil cylinder 24 and vertical support oil cylinder 25 is provided with hydraulic lock.Because the supporting time of auxiliary support wheel is longer, and kinematic velocity is not high, and hydraulic lock can lock hydraulic actuating cylinder when system loses suddenly pressure simultaneously, prevents safety misadventure.
Further, described auxiliary support wheel 20 is two groups, is separately positioned on the rear and front end of subframe.
The wheel hub overcoat rubber sleeve of described support road wheel 26.Improve the resistance to abrasion of road wheel on the one hand, the effect playing damping in bridge inspection car driving process can be made on the other hand.
The present invention changes four of existing highway bridge tool car strong points at least six strong points, auxiliary support wheel can according to the size of its bearing force of Gravity changer dynamic conditioning of right side truss simultaneously, thus make car load left-right balance and remain within the scope of safety factor, further increase the safety performance of car load.
Claims (5)
1. the anti-overturn mechanism of a truss-type bridge tool car, comprise the self-travel type support wheel (10) that four groups are arranged on subframe bottom, it is characterized in that: also comprise the auxiliary support wheel (20) being arranged on and stretching out phase the same side, direction with truss, described auxiliary support wheel (20) comprises the horizontal support legs case (21) be arranged on attaching beam of getting on the bus (30), L shape telescopic outrigger (22) and vertical leg (23), one end of L shape telescopic outrigger (22) is sleeved on the inside of horizontal support legs case (21), vertical leg (23) is sleeved on the inside of L shape telescopic outrigger (22) other end, horizontal telescoping oil cylinder (24) one end is connected in horizontal support legs case (21), and the other end is connected in L shape telescopic outrigger (22), vertical support oil cylinder (25) one end is connected in the supporting leg of L shape telescopic outrigger (22) vertical direction, the other end is connected in vertical leg (23), and the lower end of vertical leg (23) is provided with and supports road wheel (26).
2. the anti-overturn mechanism of truss-type bridge tool car as claimed in claim 1, it is characterized in that: also comprise PLC, multichannel combine valve, alarm unit and pressure sensing cell, described pressure sensing cell is for being arranged on the pressure sensor on vertical support oil cylinder (25) in-line, the pressure signal detected is delivered to PLC by pressure sensor, PLC is by multichannel combine valve level of control telescopic oil cylinder (24), four support oil cylinders of vertical support oil cylinder (25) and self-travel type support wheel flexible, alarm unit is connected with PLC.
3. the anti-overturn mechanism of truss-type bridge tool car as claimed in claim 2, is characterized in that: the upper end of attaching beam of getting on the bus (30) is provided with horizontal measuring instrument, and horizontal measuring instrument is connected with alarm unit.
4. the anti-overturn mechanism of the truss-type bridge tool car as described in claim as arbitrary in claims 1 to 3, is characterized in that: described auxiliary support wheel (20) is two groups, is separately positioned on the rear and front end of subframe.
5. the anti-overturn mechanism of truss-type bridge tool car as claimed in claim 4, is characterized in that: the wheel hub overcoat rubber sleeve of described support road wheel (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510023994.3A CN104691519A (en) | 2015-01-16 | 2015-01-16 | Anti-rollover mechanism and system for truss type bridge inspection vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510023994.3A CN104691519A (en) | 2015-01-16 | 2015-01-16 | Anti-rollover mechanism and system for truss type bridge inspection vehicle |
Publications (1)
| Publication Number | Publication Date |
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| CN104691519A true CN104691519A (en) | 2015-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510023994.3A Pending CN104691519A (en) | 2015-01-16 | 2015-01-16 | Anti-rollover mechanism and system for truss type bridge inspection vehicle |
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| CN (1) | CN104691519A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106544954A (en) * | 2016-03-04 | 2017-03-29 | 徐工集团工程机械股份有限公司 | A kind of leg control system, method and bridge inspection vehicle |
| CN107386966A (en) * | 2017-09-04 | 2017-11-24 | 广西同庆机械制造有限公司 | A kind of rotary drilling rig anti-tilting apparatus |
| CN108082148A (en) * | 2017-12-11 | 2018-05-29 | 大连四达高技术发展有限公司 | Collapsible Auxiliary support wheel apparatus |
| CN110155105A (en) * | 2018-05-21 | 2019-08-23 | 比亚迪股份有限公司 | Anti-side-turning device, bogie, rail vehicle and Rail Transit System |
| CN110979239A (en) * | 2019-10-15 | 2020-04-10 | 长沙中联重科环境产业有限公司 | Rollover prevention control system and wall surface cleaning vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106544954A (en) * | 2016-03-04 | 2017-03-29 | 徐工集团工程机械股份有限公司 | A kind of leg control system, method and bridge inspection vehicle |
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| CN107386966A (en) * | 2017-09-04 | 2017-11-24 | 广西同庆机械制造有限公司 | A kind of rotary drilling rig anti-tilting apparatus |
| CN108082148A (en) * | 2017-12-11 | 2018-05-29 | 大连四达高技术发展有限公司 | Collapsible Auxiliary support wheel apparatus |
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| CN110979239A (en) * | 2019-10-15 | 2020-04-10 | 长沙中联重科环境产业有限公司 | Rollover prevention control system and wall surface cleaning vehicle |
| CN110979239B (en) * | 2019-10-15 | 2021-08-24 | 长沙中联重科环境产业有限公司 | Rollover prevention control system and wall surface cleaning vehicle |
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Application publication date: 20150610 |
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