CN102926324B - Multifunctional rigidity adjustable speed locking force transmission devices - Google Patents
Multifunctional rigidity adjustable speed locking force transmission devices Download PDFInfo
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- CN102926324B CN102926324B CN201210483794.2A CN201210483794A CN102926324B CN 102926324 B CN102926324 B CN 102926324B CN 201210483794 A CN201210483794 A CN 201210483794A CN 102926324 B CN102926324 B CN 102926324B
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- 230000005540 biological transmission Effects 0.000 title abstract 5
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 19
- 238000013016 damping Methods 0.000 claims description 44
- 239000003921 oil Substances 0.000 claims description 25
- 239000000428 dust Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 229920002545 silicone oil Polymers 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 230000008602 contraction Effects 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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Abstract
The invention relates to a connecting device of railroad bridges, in particular to multifunctional rigidity adjustable speed locking force transmission devices for connecting adjacent bridge spans of the railroad bridges. Each multifunctional rigidity adjustable speed locking force transmission device comprises a piston cylinder and a buffer device fixedly mounted at the bottom end of a cylinder barrel; the piston cylinder comprises the cylinder barrel, a first cylinder cover, a piston, a piston rod and hydraulic oil; the piston is used for dividing the space inside the cylinder barrel into a first chamber and a second chamber; and clearance exists between the piston and the cylinder barrel, and the hydraulic oil can flow between the first chamber and the second chamber through the clearance. The multifunctional rigidity adjustable speed locking force transmission devices can distribute horizontal force to at least three adjacent bridge piers under the action of the horizontal force by the traction for braking or starting a train, thus, the safety problem caused by the increase in the freight volume of the train can be solved by only reinforcing one of every three bridge piers after the multifunctional rigidity adjustable speed locking force transmission devices are additionally arranged.
Description
Technical field
The present invention relates to a kind of connection set of railroad bridge, particularly relate to a kind of multi-functional rigidity adjustable-speed locking force-transmitting device that the adjacent bridge mid-span of railroad bridge is got up.
Background technique
When building a railway or light rail, usually can encounter rivers, mountain valley, highway or intersect with an other railway, in order to allow railway cross over the obstacle in these landform, often need to build various railroad bridges.The chief component of general bridge comprises spanning, bridge pier.Spanning is Oil pipeline, and bridge pier is supporting structure.
The features such as with respect to highway bridge, it is large that railroad bridge has load, and impact force is large, and rate of traffic flow is large.When train starts or brakes, slows down on railroad bridge, horizontal tripping force or braking force directly act in spanning, then by spanning, horizontal applied force are delivered to bridge pier.Therefore, the rigidity of bridge pier and bearing capacity are to ensureing that train operational safety is vital.Especially in recent years, along with the increase gradually of transport volume, in order to guarantee the Security of railroad bridge, need to carry out strengthening reconstruction to existing railroad bridge, if each bridge pier is carried out to strengthening reconstruction, will drop into a large amount of manpower and materials, engineering cost is higher, and the duration is longer.
Summary of the invention
In view of this, be necessary for above-mentioned problem, a kind of multi-functional rigidity adjustable-speed locking force-transmitting device is provided.This multi-functional rigidity adjustable-speed locking force-transmitting device is installed on both sides, railroad bridge expansion joint, and two adjacent spannings are coupled together.Under temperature load effect, this device can be out of shape by free-extension, does not affect the release of the temperature stress of spanning.When train is braked, slows down or starts on railroad bridge, this multi-functional rigidity adjustable-speed locking force-transmitting device can be assigned to horizontal applied force at least three adjacent bridge piers.Like this, add after this multi-functional rigidity adjustable-speed locking force-transmitting device, every three or three above bridge piers are reinforced one of them can solve the safety problem that the increase due to train transport volume causes, thereby saves a large amount of manpower and materials, reduce engineering cost, the reduction of erection time.
The present invention is by the following technical solutions:
Multi-functional rigidity adjustable-speed locking force-transmitting device comprises: a piston cylinder, is fixedly installed in the damping device of cylinder barrel bottom; Described piston cylinder comprises cylinder barrel, the first cylinder cap, piston, piston rod, hydraulic oil; Described piston by space in cylinder barrel every being divided into the first chamber and the second chamber; Between described piston and cylinder barrel, have gap, described hydraulic oil can flow by described gap between the first chamber and the second chamber; Described damping device available buffer acts on the axial impact force of described multi-functional rigidity adjustable-speed locking force-transmitting device.
Described multi-functional rigidity adjustable-speed locking force-transmitting device is installed on two rear flank, railroad bridge expansion joint, spanning expands because the objective condition such as climate temperature, landform changes or during contraction deformation, the hydraulic oil of the first chamber or the second chamber slowly flows in another chamber by described gap, and piston rod is made fore and aft motion; Multi-functional rigidity adjustable-speed locking force-transmitting device does not affect spanning and deforms.And do the used time at the horizontal applied force of train braking or starting traction, there is higher relative movement in part spanning; Now gap sealed effect is played in the gap between piston and cylinder barrel, piston cylinder is transformed into a stiff member, described multi-functional rigidity adjustable-speed locking force-transmitting device changes the force-transmitting device with certain rigidity into, and the horizontal applied force that spanning is subject to is assigned at least three bridge piers; The distribution condition of the active force that described bridge pier is subject to is relevant to the rigidity of damping device, and the rigidity of described damping device can be selected according to concrete design object.
Further, described multi-functional rigidity adjustable-speed locking force-transmitting device also comprises seal arrangement, and described seal arrangement all wraps the cylinder barrel of damping device and piston cylinder, the first cylinder cap, piston etc. to be contained in wherein; Described seal arrangement comprises the circular sleeve of an end opening, by the shrouding of circular sleeve closure of openings; Described damping device one end is fixedly connected with the bottom of cylinder barrel, and the other end is fixedly connected with circular sleeve bottom; Described shrouding is provided with the through hole that can allow piston rod pass through.Described seal arrangement can reduce the erosion of external environment condition to piston cylinder and damping device.
Further, described multi-functional rigidity adjustable-speed locking force-transmitting device also comprises the joint for being connected with spanning end, and described joint is installed on one end that is positioned at seal arrangement outside of described circular sleeve bottom and piston rod.
Further, described joint is U-shaped steel.
Further, between described the first cylinder cap and shrouding, be also provided with damping device, this damping device one end is fixed on the first cylinder cap or shrouding, and the other end freely.Set up after this damping device, can prevent that the first cylinder cap and shrouding from bumping and causing damage.
Further, described damping device is damping spring.
Further, between described cylinder barrel and circular sleeve, have gap, described cylinder barrel outer peripheral surface or circular sleeve inner peripheral surface are provided with tetrafluoroethylene layer.Described tetrafluoroethylene layer reduces the sliding friction between cylinder body and circular sleeve.Described circular sleeve plays guiding and supporting role to cylinder barrel.
Further, described cylinder barrel and the first cylinder cap adopt the Placement of internal thread, to avoid oil hydraulic cylinder and circular sleeve to produce, interfere.
Further, described cylinder barrel comprises the second cylinder cap, circular cylinder, and described the second cylinder cap is fixedly connected on one end of circular cylinder; Described the second cylinder cap is provided with the through hole coordinating with piston rod; In the reciprocating process of described piston rod, the two ends of piston rod are all positioned at outside cylinder body.
Further, the gap width between described piston and cylinder barrel is 0.01～0.05mm.
Further, the outer round surface of described piston is also provided with annular groove.The groove width of described annular groove is 0.3～0.5mm, and groove depth is that 0.5～1.0mm, spacing are 2～5mm.Annular groove makes piston have Self-resetting performance, can reduce frictional force between piston and cylinder barrel, improve sealability.
Further, described hydraulic oil is silicone oil.
Further, described piston cylinder also comprises the first guide sleeve that is positioned at cylinder barrel and is fixed on the first cylinder cap one side, and described the first guide sleeve is socketed on piston rod, and described the first guide sleeve plays guiding and supporting role when piston rod moves reciprocatingly.
Further, described piston cylinder also comprises the second guide sleeve that is positioned at cylinder barrel bottom, and described piston is fixed between piston rod two ends, and described guide sleeve is socketed on piston rod.When train starting or braking, the horizontal applied force that described multi-functional rigidity adjustable-speed locking force-transmitting device bears is larger, sets up after the second guide sleeve, can guarantee the coaxality of cylinder barrel and piston rod, and then reduce the frictional force between piston and cylinder barrel.
Further, described guide sleeve inner side is provided with annular groove, is provided with the seal ring for preventing that hydraulic oil from leaking out along the interval between piston rod and guide sleeve in described annular groove.
Further, described guide sleeve be take high-intensity resin and is made as material.
Further, on described piston rod, offer the first oil inlet passage, the second oil inlet passage; Described first oil inlet passage one end communicates with the first chamber, and the other end can communicate with the external world; Described second oil inlet passage one end communicates with the second chamber, and the other end can communicate with the external world.
Further, described piston rod offers the first exhaust passage, the second exhaust passage; Described first one end, exhaust passage communicates with the downtake pipe that is fixed on piston rod, and the other end can communicate with the external world; Described second one end, exhaust passage communicates with the second exhaust pipe that is fixed on piston rod, and the other end can communicate with the external world; Described downtake pipe is positioned at the first chamber, and described second exhaust pipe is positioned at the second chamber.By described the first exhaust passage, the second exhaust passage can be removed the Bas Discharged in the first chamber, the second chamber.
Described piston cylinder also comprises dust ring, and described dust ring is fixed the first cylinder cap outside, and is socketed on piston rod.Described dust ring can prevent from falling into the dust of piston rod, during along with the fore and aft motion of piston rod, is brought in cylinder body.
The beneficial effect of the multi-functional rigidity adjustable-speed locking of the present invention force-transmitting device is as follows:
1, this multi-functional rigidity adjustable-speed locking force-transmitting device is installed on two rear flank, railroad bridge expansion joint, when the objective condition such as climate temperature, landform change, spanning can expand or contraction deformation, and is not subject to the restriction of multi-functional rigidity adjustable-speed locking force-transmitting device.
2, at the horizontal applied force of train braking or starting traction, do the used time, this multi-functional rigidity adjustable-speed locking force-transmitting device can be assigned to horizontal applied force at least three adjacent bridge piers; Add after this multi-functional rigidity adjustable-speed locking force-transmitting device, the above bridge pier of every three or three is reinforced one of them can solve the safety problem that the increase due to train transport volume causes, thereby save a large amount of manpower and materials, reduce engineering cost, the reduction of erection time.
Accompanying drawing explanation
Fig. 1 is wherein a kind of layout plan being installed on after railroad bridge of the multi-functional rigidity adjustable-speed locking of the present invention force-transmitting device.
Fig. 2 is first embodiment's sectional view of the multi-functional rigidity adjustable-speed locking of the present invention force-transmitting device.
Fig. 3 is second embodiment's sectional view of the multi-functional rigidity adjustable-speed locking of the present invention force-transmitting device.
Fig. 4 is the 3rd embodiment's sectional view of the multi-functional rigidity adjustable-speed locking of the present invention force-transmitting device.
Wherein: 10-multi-functional rigidity adjustable-speed locking force-transmitting device, 20-spanning, 30-bridge pier, 1-cylinder barrel, the 2-the first cylinder cap, 3-piston, 4-piston rod, the 6-the first chamber, the 7-the second chamber, the 8-the first damping spring, 9-circular sleeve, 11-shrouding, 12-joint, 13-guide sleeve, 14-annular groove, 15-seal ring, 16-annular groove, 17-dust ring, the 18-the second damping spring, the 19-the second cylinder cap, 21-circular cylinder, the 22-the first oil inlet passage, the 23-the second oil inlet passage, the 24-the first exhaust passage, the 26-the second exhaust passage, 27-downtake pipe, 28-second exhaust pipe.
Embodiment
For the ease of it will be appreciated by those skilled in the art that the present invention is described further below in conjunction with accompanying drawing and embodiment.
Figure 1 shows that wherein a kind of layout plan being installed on after railroad bridge of the multi-functional rigidity adjustable-speed locking of the present invention force-transmitting device 10.Described multi-functional rigidity adjustable-speed locking force-transmitting device 10 is installed on both sides, railroad bridge expansion joint.Described every adjacent three spannings 20 are one group, and the multi-functional rigidity adjustable-speed locking of the spanning 20 use force-transmitting device 10 between same group couples together, separate between every group.
Figure 2 shows that the multi-functional rigidity adjustable-speed locking of the present invention force-transmitting device 10 first embodiments.Described multi-functional rigidity adjustable-speed locking force-transmitting device 10 comprises single-piston-rod hydraulic cylinder, is fixedly installed in the damping device of cylinder barrel 1 bottom; Described single-piston-rod hydraulic cylinder comprises cylinder barrel 1, the first cylinder cap 2, piston 3, piston rod 4, silicone oil; Described piston 3 is by the interior space of cylinder barrel 1 every being divided into the first chamber 6 and the second chamber 7, and described the first chamber 6 is positioned at the left side of the second chamber 7; Between described piston 3 and cylinder barrel 1, have gap, described hydraulic oil can flow by described gap between the first chamber 6 and the second chamber 7.
Described damping device locks the axial impact force of force-transmitting device 10 in described multi-functional rigidity adjustable-speed for buffer function.Above-mentioned damping device is that the rigidity of the first damping spring 8, the first damping springs 8 can design according to the working condition of railroad bridge.Should be appreciated that, described damping device can also be other suitable damping device.
Described multi-functional rigidity adjustable-speed locking force-transmitting device 10 is installed on two rear flank at railroad bridge expansion joint, spanning 20 expands because the objective condition such as climate temperature, landform changes or during contraction deformation, the hydraulic oil of the first chamber 6 or the second chamber 7 slowly flows in another chamber by described gap, piston rod 4 is made fore and aft motion, does not affect spanning 20 and deforms.And do the used time at the horizontal applied force of train braking or starting traction, between part spanning 20, there is the high speed relative movement of moment.Meanwhile, piston 3 is higher with cylinder barrel 1 speed of related movement, and gap sealed effect is played in the gap between piston 3 and cylinder barrel 1, and now single-piston-rod hydraulic cylinder is as a stiff member.Under the effect of single-piston-rod hydraulic cylinder and the first damping spring 8, horizontal applied force is assigned to four adjacent bridge piers 30.
Clearance seal is a kind of conventional encapsulating method, it relies on the micro-gap between relative movement part fitting surface to carry out Leakage prevention, from annulus axial flow theory, leakage rate is directly proportional to the cube in gap, therefore can adjust leakage by the way of adjusting play.When the gap width between above-mentioned piston 3 and cylinder barrel 1 is 0.01～0.05mm, can reach the requirement of above-mentioned sealing.
When described multi-functional rigidity adjustable-speed locking force-transmitting device 10 is installed, the free end of the first damping spring 8 and piston rod 4 is fixedly connected with the spanning 20 of both sides, expansion joint respectively.
Figure 3 shows that the multi-functional rigidity adjustable-speed locking of the present invention force-transmitting device 10 second embodiments.Described multi-functional rigidity adjustable-speed locking force-transmitting device 10 comprises single-piston-rod hydraulic cylinder, is fixedly installed in the first damping spring 8 of cylinder barrel 1 bottom; Described single-piston-rod hydraulic cylinder comprises cylinder barrel 1, the first cylinder cap 2, piston 3, piston rod 4, hydraulic oil; Described piston 3 is by the interior space of cylinder barrel 1 every being divided into the first chamber 6 and the second chamber 7, and described the first chamber 6 is positioned at the left side of the second chamber 7; Between described piston 3 and cylinder barrel 1, have gap, described hydraulic oil can flow by described gap between the first chamber 6 and the second chamber 7.
The outer round surface of described piston 3 offers annular groove 16.The groove width of described annular groove 16 is 0.3～0.5mm, and groove depth is that 0.5.～1.0mm, spacing are 2～5mm.The effect of described annular groove 16 is as follows:
(a) make piston 3 there is Self-resetting performance.Due to geometrical shape and the coaxiality error of piston 3, the mal-distribution of working pressure oil in seal clearance will form a radial imbalance force, and it increases the frictional force between piston 3 and cylinder barrel 1.Open after annular groove 16, radially oil pressure is tended to balance, piston 3 can automatic centering, thereby reduces the frictional force between piston 3 and cylinder barrel 1.Because the leakage of concentric circumferential weld is more much smaller than eccentric circumferential weld, the leakage rate that the centering of piston 3 has been reduced hydraulic oil, has improved sealability;
(b) fluid is stored in compensating groove, makes piston 3 energy self oilings, and then reduces the frictional force between piston 3 and cylinder barrel 1.
Described single-piston-rod hydraulic cylinder also comprises the guide sleeve 13 that is positioned at cylinder barrel 1 and is fixed on the first cylinder cap 2 one sides, and described guide sleeve 13 is provided with the through hole with piston rod 4 equal diameters, and guide sleeve 13 plays guiding and supporting role when piston rod 4 moves reciprocatingly.After guide sleeve 13 wearing and tearing, can directly be changed, and do not needed replacing the first cylinder cap 2, reduce maintenance cost.Described guide sleeve 13 be take high-intensity resin and is made as raw material.Described guide sleeve 13 inner sides are provided with annular groove 14, are provided with the seal ring 15 for preventing that hydraulic oil from leaking out along the interval between piston rod 4 and guide sleeve 13 in described annular groove 14.
Described single-piston-rod hydraulic cylinder also comprises dust ring 17, and described dust ring 17 is fixed the first cylinder cap 2 outsides, and is socketed on piston rod 4.Described dust ring 17 can prevent from falling into the dust of piston rod 4, during along with the fore and aft motion of piston rod 4, is brought in cylinder body, increases the frictional force between guide sleeve 13 and piston rod 4, piston 3 and cylinder barrel 1.
Described multi-functional rigidity adjustable-speed locking force-transmitting device 10 also comprises seal arrangement, and described seal arrangement all wraps the cylinder barrel of the first damping spring 8 and single-piston-rod hydraulic cylinder 1, the first cylinder cap 2, piston 3 etc. to be contained in wherein; Described seal arrangement comprises the circular sleeve 9 of an end opening, by the shrouding 11 of circular sleeve 9 closure of openings; Described first damping spring 8 one end are fixedly connected with the bottom of cylinder barrel 1, and the other end is free, and contacts with circular sleeve 9 bottoms; Described shrouding 11 is provided with the through hole with piston rod 4 equal diameters, and described piston rod 4 is through this through hole.Described seal arrangement is placed in the assemblies such as the first damping spring 8, cylinder barrel 1, the first cylinder cap 2, piston 3 in the space of a sealing.Can reduce the erosion of external environment condition to assemblies such as the first damping spring 8, cylinder barrel 1, the first cylinder cap 2, pistons 3, as prevent the erosion of rainwater, dust, microorganism.
The external diameter of described cylinder barrel 1 equates with the internal diameter of circular sleeve 9,1 guiding of 9 pairs of cylinder barrels of described circular sleeve and supporting role.Described cylinder barrel 1 and the first cylinder cap 2 adopt the Placement of internal thread.Because the external diameter of cylinder barrel 1 equates with the internal diameter of circular sleeve 9, cylinder barrel 1 and the first cylinder cap 2 adopt the Placement of internal threads can avoid single-piston-rod hydraulic cylinder and circular sleeve 9 to interfere, thereby can guarantee that 9 pairs of cylinder barrels 1 of circular sleeve play the guiding role.
In order to prevent that cylinder body and shrouding 11 from bumping and causing damage, between described the first cylinder cap 2 and shrouding 11, be also provided with the second damping spring 18, described second damping spring 18 one end are fixed on the first cylinder cap 2, and the other end is freely.
Described multi-functional rigidity adjustable-speed locking force-transmitting device 10 also comprises the joint 12 being connected for the end with spanning 20, and described joint 12 is installed on the free end of described circular sleeve 9 bottoms and piston rod 4.Described joint 12 is U-shaped steel.
Figure 4 shows that the multi-functional rigidity adjustable-speed locking of the present invention force-transmitting device 10 the 3rd embodiment.Described multi-functional rigidity adjustable-speed locking force-transmitting device 10 comprises that seal arrangement, part are positioned at oil hydraulic cylinder, the damping spring of seal arrangement inside.Described seal arrangement is identical with assembly corresponding in the second embodiment, at this, is not just describing in detail.
Described oil hydraulic cylinder comprises: circular cylinder 21, the first cylinder cap 2, the second cylinder cap 19, piston 3, piston rod 4, silicone oil; Described the first cylinder cap 2, the second cylinder cap 19 are separately fixed at circular cylinder 21 two ends; On the first cylinder cap 2, the second cylinder cap 19, be equipped with the through hole that allows piston rod 4 pass.In the reciprocating process of described piston rod 4, the two ends of piston rod 4 are all positioned at outside cylinder body.When train starting or braking, the horizontal applied force that described multi-functional rigidity adjustable-speed locking force-transmitting device 10 bears is larger, two through hole has leading role to piston rod 4, can strengthen the coaxality of circular cylinder 21 and piston rod 4, and then reduces the frictional force between piston 3 and circular cylinder 21.
In order to reduce the maintenance cost of oil hydraulic cylinder, further guarantee the coaxality of circular cylinder 21 and piston rod 4, described the first cylinder cap 2 and the second cylinder cap 19 inner sides are equipped with guide sleeve 13, described guide sleeve 13 is socketed on piston rod 4.After guide sleeve 13 wearing and tearing, can directly be changed, and do not needed replacing cylinder cap.Described guide sleeve 13 inner sides are provided with annular groove 14, are provided with the seal ring 15 for preventing that hydraulic oil from leaking out along the interval between piston rod 4 and guide sleeve 13 in described annular groove 14.
Described piston 3 is by the interior space of circular cylinder 21 every being divided into the first chamber 6 and the second chamber 7, and described the first chamber 6 is positioned at the left side of the second chamber 7; Between described piston 3 and circular cylinder 21, have gap, described hydraulic oil can flow by described gap between the first chamber 6 and the second chamber 7.In order to reduce the friction between piston 3 and circular cylinder 21, the outer round surface of described piston 3 offers annular groove 16.
There is certain gap with circular sleeve 9 in described circular cylinder 21, outer surface of cylinder block scribbles polytetrafluoroethylene floor (not shown in FIG.), thereby guarantee can mutually slide between sleeve and circular cylinder 21.21 guiding of 9 pairs of circular cylinders of described circular sleeve and supporting role.
Described damping spring comprises the first damping spring 8, the second damping spring 18; Described first damping spring 8 one end are fixed on the second cylinder cap 19, and the other end freely; Described second damping spring 18 one end are fixed on shrouding 11, and the other end freely.
On described piston rod 4, offer the first oil inlet passage 22, the second oil inlet passage 23; Described first oil inlet passage 22 one end communicate with the first chamber 6, and the other end can communicate with the external world; Described second oil inlet passage 23 one end communicate with the second chamber 7, and the other end can communicate with the external world.Described piston rod 4 also offers 24, the second exhaust passages 26, the first exhaust passage; 24 one end, described the first exhaust passage communicate with the downtake pipe 27 that is fixed on piston rod 4, and the other end can communicate with the external world; 26 one end, described the second exhaust passage communicate with the second exhaust pipe 28 that is fixed on piston rod 4, and the other end can communicate with the external world; Described downtake pipe 27 is positioned at the first chamber 6, and described second exhaust pipe 28 is positioned at the second chamber 7.By 24, the second exhaust passages 26, described the first exhaust passage, the Bas Discharged in the first chamber 6, the second chamber 7 can be gone.On described piston rod 4, be also provided with the switch gear (not shown in FIG.) that described oil inlet passage, gas-entered passageway are stopped up.Oil hydraulic cylinder is in installation process or park for a long time while reworking, and in oil hydraulic cylinder, can infiltrate air, and in order to prevent that creeping from appearring in oil hydraulic cylinder, the abnormalities such as noise and heating, need and add silicone oil the Bas Discharged in chamber.
Described multi-functional rigidity adjustable-speed locking force-transmitting device 10 also comprises the joint 12 being connected for the end with spanning 20, and described joint 12 is installed on the free end of described circular sleeve 9 bottoms and piston rod 4.Described joint 12 is U-shaped steel.
The above embodiment has only expressed three kinds of mode of executions of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (15)
1. a multi-functional rigidity adjustable-speed locking force-transmitting device, is characterized in that: piston cylinder, is fixedly installed in the damping device of cylinder barrel bottom; Described piston cylinder comprises cylinder barrel, the first cylinder cap, piston, piston rod, hydraulic oil; Described piston by space in cylinder barrel every being divided into the first chamber and the second chamber; Between described piston and cylinder barrel, have gap, described hydraulic oil can flow by described gap between the first chamber and the second chamber; Described damping device available buffer acts on the axial impact force of described multi-functional rigidity adjustable-speed locking force-transmitting device;
Described cylinder barrel comprises the second cylinder cap, circular cylinder, and described the second cylinder cap is fixedly connected on one end of circular cylinder; Described the second cylinder cap is provided with the through hole coordinating with piston rod; In the reciprocating process of described piston rod, the two ends of piston rod are all positioned at outside cylinder body.
2. multi-functional rigidity adjustable-speed locking force-transmitting device according to claim 1, is characterized in that: also comprise seal arrangement, described seal arrangement all wraps the cylinder barrel of damping device and piston cylinder, the first cylinder cap, piston etc. to be contained in wherein; Described seal arrangement comprises the circular sleeve of an end opening, by the shrouding of circular sleeve closure of openings; Described damping device one end is fixedly connected with the bottom of cylinder barrel, and the other end freely; Described shrouding is provided with the through hole that can allow piston rod pass through.
3. multi-functional rigidity adjustable-speed according to claim 2 locks force-transmitting device, it is characterized in that: also comprise the joint for being connected with spanning end, described joint is installed on one end that is positioned at seal arrangement outside of described circular sleeve bottom and piston rod; Described joint is U-shaped steel.
4. multi-functional rigidity adjustable-speed locking force-transmitting device according to claim 2, is characterized in that: between described the first cylinder cap and shrouding, be also provided with damping device, this damping device one end is fixed on the first cylinder cap or on shrouding, and the other end freely; Described damping device is damping spring.
5. multi-functional rigidity adjustable-speed locking force-transmitting device according to claim 2, is characterized in that: between described cylinder barrel and circular sleeve, have gap, described cylinder barrel outer peripheral surface or circular sleeve inner peripheral surface are provided with tetrafluoroethylene layer.
6. multi-functional rigidity adjustable-speed locking force-transmitting device according to claim 2, is characterized in that: described cylinder barrel and the first cylinder cap adopt the Placement of internal thread.
7. multi-functional rigidity adjustable-speed locking force-transmitting device according to claim 1 and 2, is characterized in that: the gap width between piston and cylinder barrel is 0.01～0.05mm.
8. multi-functional rigidity adjustable-speed locking force-transmitting device according to claim 7, is characterized in that: the outer round surface of described piston is also provided with annular groove; The groove width of described annular groove is 0.3～0.5mm, and groove depth is 0.5～1.0mm, and spacing is 2～5mm.
9. multi-functional rigidity adjustable-speed locking force-transmitting device according to claim 1 and 2, is characterized in that: described hydraulic oil is silicone oil.
10. multi-functional rigidity adjustable-speed locking force-transmitting device according to claim 2, is characterized in that: described piston cylinder also comprises the first guide sleeve that is positioned at cylinder barrel and is fixed on the first cylinder cap one side, and described the first guide sleeve is socketed on piston rod; Piston cylinder also comprises the second guide sleeve that is positioned at cylinder barrel bottom, and described piston is fixed between piston rod two ends, and described guide sleeve is socketed on piston rod.
11. multi-functional rigidity adjustable-speed locking force-transmitting devices according to claim 10, it is characterized in that: described guide sleeve inner side is provided with annular groove, is provided with the seal ring for preventing that hydraulic oil from leaking out along the interval between piston rod and guide sleeve in described annular groove.
12. multi-functional rigidity adjustable-speeds locking force-transmitting devices according to claim 10, is characterized in that: described guide sleeve be take high-intensity resin and made as material.
13. multi-functional rigidity adjustable-speed locking force-transmitting devices according to claim 1 and 2, is characterized in that: on described piston rod, offer the first oil inlet passage, the second oil inlet passage; Described first oil inlet passage one end communicates with the first chamber, and the other end can communicate with the external world; Described second oil inlet passage one end communicates with the second chamber, and the other end can communicate with the external world.
14. multi-functional rigidity adjustable-speed locking force-transmitting devices according to claim 1 and 2, is characterized in that: described piston rod offers the first exhaust passage the second exhaust passage; Described first one end, exhaust passage communicates with the downtake pipe that is fixed on piston rod, and the other end can communicate with the external world; Described second one end, exhaust passage communicates with the second exhaust pipe that is fixed on piston rod, and the other end can communicate with the external world; Described downtake pipe is positioned at the first chamber, and described second exhaust pipe is positioned at the second chamber.
15. multi-functional rigidity adjustable-speed locking force-transmitting devices according to claim 1 and 2, is characterized in that: described piston cylinder also comprises dust ring, described dust ring is fixed the first cylinder cap outside, and is socketed on piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210483794.2A CN102926324B (en) | 2012-11-23 | 2012-11-23 | Multifunctional rigidity adjustable speed locking force transmission devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210483794.2A CN102926324B (en) | 2012-11-23 | 2012-11-23 | Multifunctional rigidity adjustable speed locking force transmission devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102926324A CN102926324A (en) | 2013-02-13 |
| CN102926324B true CN102926324B (en) | 2014-08-27 |
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| CN201210483794.2A Active CN102926324B (en) | 2012-11-23 | 2012-11-23 | Multifunctional rigidity adjustable speed locking force transmission devices |
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| CN104612042B (en) * | 2013-12-05 | 2018-06-26 | 深圳市市政设计研究院有限公司 | A kind of anticollision attachment device for bridge |
| CN110160732B (en) * | 2018-08-09 | 2020-12-25 | 北京机电工程研究所 | Friction force adjustable device and friction force adjustable method for flutter test |
| CN111335140A (en) * | 2020-04-13 | 2020-06-26 | 中铁二院工程集团有限责任公司 | Arch structure damping device and method for deck type concrete arch bridge |
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| CN101509534A (en) * | 2009-03-25 | 2009-08-19 | 哈尔滨工业大学 | Single rod fluid damper based on shape memory alloy compensator |
| CN101555922A (en) * | 2009-05-13 | 2009-10-14 | 东南大学 | Spiral-hole type viscous damper |
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