CN207227936U - A kind of stepless height-regulating spherical bearing - Google Patents
A kind of stepless height-regulating spherical bearing Download PDFInfo
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- CN207227936U CN207227936U CN201720945848.0U CN201720945848U CN207227936U CN 207227936 U CN207227936 U CN 207227936U CN 201720945848 U CN201720945848 U CN 201720945848U CN 207227936 U CN207227936 U CN 207227936U
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Abstract
A kind of stepless height-regulating spherical bearing, equipped with support body system, bridge floor height monitoring system, height-adjusting system composition, bridge floor height monitoring system monitoring bridge floor height, it is characterised in that：The height-adjusting system is arranged on below support body system, height-adjusting system is by vertical thrustor, double helix Contact Pair, horizontal Worm and worm-wheel gearing and base board composition, at least one vertical thrustor is equipped with base board, one double helix Contact Pair and a horizontal Worm and worm-wheel gearing, the lower surface that at least one vertical thrustor corresponds to support body system is set, and support body systematic vertical is jacked up when heightening, horizontal Worm and worm-wheel gearing realizes the control to double helix Contact Pair, realize lifting, and there is auto-lock function, vertical bearing stability is high.Changed according to bridge elevation and carry out height adjustment, it can be achieved that lofty tone or low-key, unrestricted, so as to ensure bridge floor ride comfort.
Description
Technical field
It the utility model is related to bridge or construction engineering technical field, more particularly to a kind of stepless height-regulating spherical bearing.
Background technology
Large-span arch bridge is since the change of temperature can cause the elongation and shortening of arch, so as to cause the height of arch bridge bridge floor
Change, reduce the ride comfort of bridge floor.In order to ensure the comfort of bullet train, generally use drops when train passes through arch bridge
The mode of speed.Arch bridge bridge elevation can vary with temperature daily, in order to control the change of bridge elevation just to need one kind being capable of root
The bearing of height is adjusted accordingly according to bridge elevation change.
At present the height-adjustable supports scheme that uses both at home and abroad there is backing plate to heighten, it is spiral heighten, voussoir is heightened and pressure injection rubber tune
It is 4 kinds high.
（1）Backing plate heightens mode
It is by adding at bearing top, bottom plate that bearing most widely used at present, that construction most convenient is feasible, which heightens one of mode,
If billet, specific configuration graph Fig. 1.When need heightened when, beam body of first jack-uping, then add needed for thickness
Steel plate, so as to fulfill the purpose heightened.
（2）It is spiral to heighten mode
The bearing of such a form adds larger trapezoidal thread, and after being heightened with screw thread, spiral shell up and down is filled with mud jacking
Gap between rotation.Within the specific limits, it can be achieved that the stepless changing of arbitrary height, and as needed can Bidirectional stepless tune up and down
Section, and adjustment can be repeated several times.Jack top beam is also required to during heightening.Spiral height-adjustable supports specific configuration is shown in Fig. 2.
（3）Voussoir heightens mode
Voussoir, which heightens mode, to be heightened by adding one group of gad block above the top plate of bearing.Voussoir heightens branch
Seat tool body structural map is shown in Fig. 3.
（4）Pressure injection rubber heightens mode
Pressure injection rubber height-adjustable supports are equipped with mud jacking pipeline on base-plate, can be held by pressure injection rubber to improve in bearing
The thickness of rubber is pressed, reaches the effect of adjustment height of support.Pressure injection rubber heightens pot bearing specific configuration and sees Fig. 4.
Pressure injection rubber is heightened to be not required to separately set jack top beam when mode is heightened, and by setting multiple tracks pressure injection hole mud jacking, is utilized
Bearing realizes the stepless height-regulating of bearing in itself.Can be allowed by bearing vertical bearing capacity limit value, the amount of heightening and rubber bearing plate should
The grouting pipe slip casting of different maximum crushing stress values is chosen in power control.
Heighten mode for above-mentioned four kinds to belong to passively heighten category, be to meet or exceed a certain limit in railroad bridge deformation
Value, and then when influence Track regularity, just bearing is heightened by railway maintenance Departmental organization relevant unit, there are bright
Aobvious hysteresis quality and uncertainty.Moreover, heightening length duty cycle, efficiency is low, it is necessary to suspend traffic or select to run in circuit
Operation in window phase, construction cost are high.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of stepless height-regulating spherical bearing, become according to bridge elevation
Change and carry out height adjustment, it can be achieved that lofty tone or low-key, unrestricted, so as to ensure bridge floor ride comfort.
To realize above-mentioned technical purpose, used technical solution is：A kind of stepless height-regulating spherical bearing, equipped with bearing sheet
System system, bridge floor height monitoring system, height-adjusting system composition, bridge floor height monitoring system monitoring bridge floor height, it is characterised in that：
The height-adjusting system is arranged on below support body system, and height-adjusting system is by vertical thrustor, double helix Contact Pair, level
Worm and worm-wheel gearing and base board composition, are equipped with least one vertical thrustor, a double helix connects on base board
A secondary and horizontal Worm and worm-wheel gearing is touched, the lower surface that at least one vertical thrustor corresponds to support body system is set
Put, and jack up support body systematic vertical when heightening, double helix Contact Pair is by inside and outside double helix end face structure A and inside and outside couple
Spiral end face structure B compositions, inside and outside double helix end face structure A is to be fixed at support body system lower surface center
Circular helix end face structure, and be made of the oppositely oriented spiral end face of inside and outside two individual layers, inside and outside double helix end face structure B
Top and inside and outside double helix end face structure A it is oppositely oriented, and with inside and outside double helix end face structure A threaded engagements, inside and outside double spiral shells
Revolve the lower part of end face structure B for circular planes and set with base board activity, horizontal Worm and worm-wheel gearing by servomotor,
Worm and worm wheel form, and worm screw is connected with servomotor, and the setting that is meshed with worm gear, and worm gear is set in inside and outside double helix end face
The outside of structure B, and be coaxially disposed with inside and outside double helix end face structure B.
Multiple guide pillar hole A are opened up on the lower surface of support body system described in the utility model, in the lower section of guide pillar hole A
Base board on be correspondingly provided with guide pillar hole B, guide post is equipped with guide pillar hole A and guide pillar hole B, the length of guide post is more than guide pillar hole A
Maximum spacing between guide pillar hole B.
Multiple guide pillar hole A are opened up on the lower surface of support body system described in the utility model, in the lower section of guide pillar hole A
Base board on be correspondingly provided with guide post, one end of guide post is fixed on base board, its other end is inserted in guide pillar hole A.
Multiple guide pillar hole B, the bearing in the top of guide pillar hole B are opened up on the upper surface of base board described in the utility model
Guide post is correspondingly provided with the lower surface of main body system, one end of guide post is fixed in support body system, its other end, which is inserted in, leads
In post holes B.
It is equipped with and turns between the lower surface of inside and outside double helix end face structure B described in the utility model and the upper surface of base board
Dynamic friction pair.
Bearing described in the utility model further includes control system, and control system is connected with bridge floor height monitoring system, control
The bridge floor height that system control height-adjusting system adjustment support body system processed jacks up.
Vertical thrustor described in the utility model is jack.
By adopting the above-described technical solution, the utility model has the advantages that compared to conventional height-adjustable supports：
1）Intelligence ball-shaped height-adjusting support described in the utility model can be used as large-span arch bridge or other bridges because of bridge elevation
Change and need corresponding adjustment height use, the comfort requirement of the ride comfort and train driving of favourable guarantee bridge floor.
2）Intelligence height-adjustable supports described in the utility model are adjusted by full-automatic control system, are applied without manpower
Work, substantially increases the operating efficiency that bearing is heightened, and has and heightens frequency height, the cycle is short, the low advantage of expense.
3）The intelligent height-adjustable supports of the utility model can realize vertical elevation monitoring long-range, it is vertical heighten it is full-automatic and
It is intelligent.
4）Stepless height-regulating spherical bearing described in the utility model can be realized stepless by horizontal Worm and worm-wheel gearing
Heighten.
5）Semi-automatic stepless height-regulating bearing described in the utility model, can be according to foundation settlement from number limitation is heightened
Or beam structure change is repeatedly heightened or turned down.
Brief description of the drawings
Fig. 1 is pading plate height-adjustable supports structure chart；
Fig. 2 heightens mode seat structure figure to be spiral；
Fig. 3 heightens mode seat structure figure for voussoir；
Fig. 4 heightens mode seat structure figure for pressure injection rubber；
Fig. 5 is the structure diagram of the utility model；
Fig. 6 is the A-A sectional views of the utility model Fig. 5；
Fig. 7 is the structure diagram of double helix end face structure A inside and outside the utility model；
Fig. 8 is the connection diagram of double helix end face structure B and worm and gear inside and outside the utility model；
Fig. 9 is the structure diagram of the utility model double helix Contact Pair；
Figure 10 is the utility model double helix Contact Pair separation schematic diagram；
In figure：1st, upper base plate, 2, flat frictional pair, 3, middle seat board, 4, sphere friction it is secondary, 5, lower seat board, 6, double helix connects
Touch pair, 601, inside and outside double helix end face structure A, 602, inside and outside double helix end face structure B, 7, worm gear, 8, worm screw, 9, servo electricity
Machine, 10, vertical thrustor, 11, lower anchor bolt, 12, base board, 13, guide post, 14, upper anchor bolt, 15, bridge floor height
Monitoring system, 16, polyfluortetraethylene plate, 17, rubber seal A, 18, steel lock ring circle A, 19, pressure-bearing rubber plate, 20, it is adjustable on
Support plate, 21, pressure-bearing rubber plate, 22, steel liner plate, 23, sphere polyfluortetraethylene plate, 24, guide pillar hole A, 25, steel lock ring circle B,
26th, rubber seal B, 27, middle steel liner plate, 28, stainless steel plate, 29, sunk screw A, 30, nut, 31, steel bushing, 32, pre-
Sunk screw, 33, steel cushion block, 34, puller bolt, 35, sunk screw B, 36, polytetrafluoroethylene (PTFE) pad, 37, fastening bolt, 38, the seat of honour
Plate component, 39, connection crab-bolt, 40, bearing top plate, 41, plane polyfluortetraethylene plate, 42, guide pillar hole B, 43, jack, 44,
Pump, 45, the steel plate of cushioning, 46, gad block.
Embodiment
As shown in figure 5, a kind of stepless height-regulating spherical bearing, equipped with support body system, bridge floor height monitoring system, is heightened
System forms, and bridge floor height monitoring system monitoring bridge floor height, the monitoring of bridge floor height monitoring system is real-time, described
Height-adjusting system is arranged on below support body system, and support body system is by upper anchor bolt 14, upper base plate 1, flat frictional pair
2nd, middle seat board 3, sphere friction pair 4, lower seat board 5 form, and the form of bearing is not limited to this kind of structure, that is, ensures the upper of height-regulating device
The jack-up component that Fang Youke is jacked up or fallen（Lower seat board）, there is sustainable support member in lower section（Base board）, supporting part
Part is fixed on bridge pier by lower anchor bolt, is jacked up component and is fixed on bridge bottom by upper anchor bolt.
Height-adjusting system is by vertical thrustor 10, double helix Contact Pair 6, horizontal Worm and worm-wheel gearing and base board 12
Composition, base board 12 are provided centrally with the round shape platform that height differs, on the different round platform of every level-one height, equipped with least one
A vertical 10, double helix Contact Pairs 6 of thrustor and a horizontal Worm and worm-wheel gearing, vertical thrustor 10
Installation and use otherwise the installation and use for influencing horizontal Worm and worm-wheel gearing.
The lower surface that at least one vertical thrustor 10 corresponds to support body system is set, and when heightening by bearing sheet
Body systematic vertical jacks up, and the vertical thrustor can use jack or the device similar to jack principle, realization pair
The overall jack-up of support body system, when vertical thrustor 10 is one, it wears from the tubular center of double helix Contact Pair 6
Cross, the support body system of the top of double helix Contact Pair 6 is jacked up, can be according to double when vertical thrustor 10 is more than one
The size adjustment of helical contact pair 6, the tubular center or center, outside for being arranged on double helix Contact Pair 6 are uniformly arranged, vertically
The setting of thrustor 10 ensures that power is enough when support body system is jacked up, and will also ensure quilt when support body system is pushed up
It is vertical to jack up, it is impossible to find offset and tilt.Non- when heightening operation, vertical thrustor is only vertically being heightened from vertical force
Lower seat board is jacked during operation, is subject to holder top structure gravity, after the completion of heightening, vertical thrustor homing, to treat down
It is secondary to heighten.
Double helix Contact Pair 6 is made of inside and outside double helix end face structure A601 and inside and outside double helix end face structure B602, interior
Outer double helix end face structure A601 is the circular helix end face knot for being fixed at support body system lower surface center
Structure, and being made of the oppositely oriented spiral end face of inside and outside two individual layers, the top of inside and outside double helix end face structure B602 with it is inside and outside
Double helix end face structure A601 is oppositely oriented, and with inside and outside double helix end face structure A601 threaded engagements, inside and outside double helix end face
The lower part of structure B602 is set for circular planes and with the activity of base board 12, it is non-heighten operation during, the carrying of double helix Contact Pair
Vertical load, utilizes the auto-lock function of double helix Contact Pair, it is ensured that reliability of structure；It is inside and outside double during heightening operation
Spiral end face structure A601 and inside and outside double helix end face structure B602 separation, the height of jack-up are no more than leading for double helix Contact Pair
Journey, inside and outside double helix end face structure A601 are jacked up, and double helix Contact Pair is not subject to vertical load, inside and outside double helix end face structure
B602 is rotated with worm gear 7, and the bottom surface of inside and outside double helix end face structure B602 rotates on base board 12, double helix Contact Pair it is interior
Continuous stepless change occurs for outer double helix end face structure A601 and inside and outside double helix end face structure B602 contact conditions, and then vertically
Highly change correspondingly, achieve the purpose that height stepless changing, inside and outside double helix end face structure A601 is put down after the completion of heightening, inside and outside
Double helix end face structure A601 and inside and outside double helix end face structure B602 are in thread fitting state.Conversely, when that need to turn down, it is interior
Outer double helix end face structure A601 is jacked up, and double helix Contact Pair is not subject to vertical load, inside and outside double helix end face structure B602
Being jacked up with 7 backwards rotation of worm gear, then by inside and outside double helix end face structure A601, double helix Contact Pair is not subject to vertical load,
Inside and outside double helix end face structure A601 is put down, and achievees the purpose that to turn down.
To reduce friction of the double helix Contact Pair 6 when in use between base board, in inside and outside double helix end face structure
Pivoting friction pair is set between the lower surface of B602 and the upper surface of base board 12.
Horizontal Worm and worm-wheel gearing is made of servomotor 9, worm screw 8 and worm gear 7, and worm screw 8 connects with servomotor 9
Connect, and the setting that is meshed with worm gear 7, worm gear 7 is set in the outside of inside and outside double helix end face structure B602, and with inside and outside double helix
End face structure B602 is coaxially disposed, and is connected by bolt, can be by being calculated by, the helical pitch of screw rod and inside and outside double helix end face
Relation after structure B602 rotations between helical pitch, and the hoisting depth or height of drop of lower seat board, then whole device is set
Put.
Guider is equipped between support body system and base board, support body system is by guider in Vertical Square
Move up and down, guider may include following three kinds of forms：
Multiple guide pillar hole A24, the base in the lower section of guide pillar hole A24 are opened up on the lower surface of the support body system
Guide pillar hole B42 is correspondingly provided with plate 12, guide post 13 is equipped with guide pillar hole A24 and guide pillar hole B42, the length of guide post 13, which is more than, to be led
Maximum spacing between post holes A24 and guide pillar hole B42.
Multiple guide pillar hole A24, the base in the lower section of guide pillar hole A24 are opened up on the lower surface of the support body system
Guide post 13 is correspondingly provided with plate 12, one end of guide post 13 is fixed on base board 12, its other end is inserted in guide pillar hole A24.
Multiple guide pillar hole B42 are opened up on the upper surface of the base board, the support body system in the top of guide pillar hole B42
Guide post 13 is correspondingly provided with the lower surface of system, one end of guide post 13 is fixed in support body system, its other end is inserted in guide post
In the B42 of hole.
Bearing can also set a control system, it is connected with bridge floor height monitoring system, monitor bridge floor height, control in real time
The output terminal of system is connected with height-adjusting system again, the bridge floor height that control height-adjusting system adjustment support body system jacks up.Therefore,
This bearing can be heightened using artificial, semi-automatic, full-automatic mode, its specific implementation process is as described in embodiment 1,2,3.Profit
During with control system, the bridge floor height monitoring system 14 realizes the timely monitor and input control system of floor elevation；Work as institute
The bridge floor for stating the monitoring of bridge floor height monitoring system 14 highly reaches when need to heighten, and first sets the bearing vertically amount of heightening, so
After start control system control height-adjusting system and promote support body system motion, change bridge floor height.
Embodiment 1
When bridge floor height monitoring system 15 detects bridge floor height and altitude datum when manually being heightened using this patent
When deviation reaches given threshold, being calculated by the detection of bridge floor height monitoring system 15 data need to set bearing vertically to heighten
Amount, starts vertical thrustor 10, jacks lower seat board 5 to preset height by jack, completes holder top structure vertical height
Adjustment, this inside and outside double helix end face structure A601 of seat board 5 and inside and outside double helix end face structure B602 double-spiral structures at present
Separation, bearing vertical load are carried by jack.After the completion of vertically heightening action, horizontal direction Worm Wheel System machine is manually started
Tool, drives worm screw 8 to rotate by servomotor 10, and worm screw 8 drives worm gear 7, and worm gear 7 and inside and outside double helix end face structure B602 turns
It is dynamic, until inside and outside double helix end face structure B602 top double-spiral structures with 5 bottom double helix end face structure of seat board under bearing again
Secondary close contact, completes vertical height adjustment.After the completion of adjustment action, vertical thrustor 10 falls unloading after rise, and bearing erects at this time
Carried to power by double helix Contact Pair.So far, bearing vertically heightens completion.
Embodiment 2
When bridge floor height monitoring system 15 detects bridge floor height and benchmark height when carrying out Semi-automatic height using this patent
When degree deviation reaches given threshold, being calculated by the detection of bridge floor height monitoring system 15 data need to set bearing vertically to heighten
Amount, manually loads power source and control system on the apparatus, starts vertical thrustor according to calculation amount by control system
10, lower seat board 5 is jacked to preset height by jack, complete the adjustment of holder top structure vertical height, this seat board 5 at present
Inside and outside double helix end face structure A601 is separated with inside and outside double helix end face structure B602 double-spiral structures, and bearing vertical load is by thousand
Jin is born responsibility load.After the completion of vertically heightening action, control system starts horizontal direction Worm Wheel System machinery, by 10 band of servomotor
Dynamic worm screw 8 rotates, and worm screw 8 drives worm gear 7, and worm gear 7 and inside and outside double helix end face structure B602 is rotated, until inside and outside double helix end
Face structure B602 tops double-spiral structure is in close contact again with 5 bottom double helix end face structure of seat board under bearing, is completed vertical
Highly adjust.After the completion of adjustment action, vertical thrustor 10 falls unloading after rise, and bearing vertical force is held by double helix Contact Pair at this time
Carry.So far, bearing vertically heightens completion.This, which heightens process, needs artificial installed and confirmation operation.
Embodiment 3
When bridge floor height monitoring system 15 detects bridge floor height and benchmark height when automatically being heightened using this patent
Degree deviation is when reaching given threshold, and detecting remote data by bridge floor height monitoring system 15 is sent to controller or carries
Control system, is calculated the bearing vertically amount of heightening that need to set, and control system starts vertical pushing tow according to obtained data in real time
Device 10, jacks lower seat board 5 to preset height by jack, completes the adjustment of holder top structure vertical height, this seat at present
The inside and outside double helix end face structure A601 of plate 5 is separated with inside and outside double helix end face structure B602 double-spiral structures, and bearing vertically carries
Lotus is carried by jack.After the completion of vertically heightening action, control system starts horizontal direction Worm Wheel System machinery, by servo electricity
Machine 10 drives worm screw 8 to rotate, and worm screw 8 drives worm gear 7, and worm gear 7 and inside and outside double helix end face structure B602 is rotated, until inside and outside double
Spiral end face structure B602 tops double-spiral structure is in close contact again with 5 bottom double helix end face structure of seat board under bearing, complete
Adjusted into vertical height.After the completion of adjustment action, vertical thrustor 10 falls unloading after rise, and bearing vertical force is connect by double helix at this time
Touch secondary carrying.So far, bearing vertically heightens completion.All operations are completed by control system in the process, can remotely add control
Platform processed, inquires about data message and data, and bridge floor state etc. are heightened in reaction, to prevent control system operation failure, can control
Added at platform processed and confirm formality, determine that the errorless control system of adjustment can just perform.
Claims (7)
- A kind of 1. stepless height-regulating spherical bearing, equipped with support body system, bridge floor height monitoring system, height-adjusting system composition, bridge Face height monitoring system monitoring bridge floor height, it is characterised in that：The height-adjusting system is arranged on below support body system, is adjusted High system is by vertical thrustor（10）, double helix Contact Pair（6）, horizontal Worm and worm-wheel gearing and base board（12）Group Into in base board（12）It is equipped with least one vertical thrustor（10）, a double helix Contact Pair（6）With a horizontal snail Worm and gear transmission mechanism, at least one vertical thrustor（10）The lower surface of corresponding support body system is set, and is being heightened When support body systematic vertical is jacked up, double helix Contact Pair（6）By inside and outside double helix end face structure A（601）With inside and outside double spiral shells Revolve end face structure B（602）Composition, inside and outside double helix end face structure A（601）To be fixed in support body system lower surface The circular helix end face structure of heart position, and be made of the oppositely oriented spiral end face of inside and outside two individual layers, inside and outside double helix End face structure B（602）Top and inside and outside double helix end face structure A（601）It is oppositely oriented, and with inside and outside double helix end face structure A（601）Threaded engagement, inside and outside double helix end face structure B（602）Lower part be circular planes and and base board（12）Activity is set Put, horizontal Worm and worm-wheel gearing is by servomotor（9）, worm screw（8）And worm gear（7）Composition, worm screw（8）With servomotor （9）Connection, and and worm gear（7）Be meshed setting, worm gear（7）It is set in inside and outside double helix end face structure B（602）Outside, and With inside and outside double helix end face structure B（602）It is coaxially disposed.
- A kind of 2. stepless height-regulating spherical bearing as claimed in claim 1, it is characterised in that：Under the support body system Multiple guide pillar hole A are opened up on surface（24）, in guide pillar hole A（24）Lower section base board（12）On be correspondingly provided with guide pillar hole B （42）, in guide pillar hole A（24）With guide pillar hole B（42）It is interior to be equipped with guide post（13）, guide post（13）Length be more than guide pillar hole A（24）With Guide pillar hole B（42）Between maximum spacing.
- A kind of 3. stepless height-regulating spherical bearing as claimed in claim 1, it is characterised in that：Under the support body system Multiple guide pillar hole A are opened up on surface（24）, in guide pillar hole A（24）Lower section base board（12）On be correspondingly provided with guide post（13）, Guide post（13）One end be fixed on base board（12）On, its other end is inserted in guide pillar hole A（24）It is interior.
- A kind of 4. stepless height-regulating spherical bearing as claimed in claim 1, it is characterised in that：On the upper surface of the base board Open up multiple guide pillar hole B（42）, in guide pillar hole B（42）Top support body system lower surface on be correspondingly provided with guide post （13）, guide post（13）One end be fixed in support body system, its other end is inserted in guide pillar hole B（42）It is interior.
- A kind of 5. stepless height-regulating spherical bearing as claimed in claim 1, it is characterised in that：The inside and outside double helix end face knot Structure B（602）Lower surface and base board（12）Upper surface between be equipped with pivoting friction pair.
- A kind of 6. stepless height-regulating spherical bearing as claimed in claim 1, it is characterised in that：The bearing further includes control system System, control system are connected with bridge floor height monitoring system, and control system control height-adjusting system adjustment support body system jacks up Bridge floor height.
- A kind of 7. stepless height-regulating spherical bearing as claimed in claim 1, it is characterised in that：The vertical thrustor is thousand Jin top.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720945848.0U CN207227936U (en) | 2017-08-01 | 2017-08-01 | A kind of stepless height-regulating spherical bearing |
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| CN201720945848.0U CN207227936U (en) | 2017-08-01 | 2017-08-01 | A kind of stepless height-regulating spherical bearing |
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| CN207227936U true CN207227936U (en) | 2018-04-13 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107447651A (en) * | 2017-08-01 | 2017-12-08 | 中铁二院工程集团有限责任公司 | A kind of stepless height-regulating spherical bearing |
| CN111041993A (en) * | 2019-12-18 | 2020-04-21 | 同济大学 | Steel axle center screw type temporary support |
| CN113235409A (en) * | 2021-05-13 | 2021-08-10 | 中南大学 | Support for adjusting elevation |
-
2017
- 2017-08-01 CN CN201720945848.0U patent/CN207227936U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107447651A (en) * | 2017-08-01 | 2017-12-08 | 中铁二院工程集团有限责任公司 | A kind of stepless height-regulating spherical bearing |
| CN111041993A (en) * | 2019-12-18 | 2020-04-21 | 同济大学 | Steel axle center screw type temporary support |
| CN113235409A (en) * | 2021-05-13 | 2021-08-10 | 中南大学 | Support for adjusting elevation |
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Address after: No.3, Tongjin Road, Chengdu, Sichuan 610000 Patentee after: CHINA RAILWAY ERYUAN ENGINEERING GROUP Co.,Ltd. Patentee after: CSSC Shuangrui (Luoyang) special equipment Co.,Ltd. Patentee after: CHINA RAILWAY ECONOMIC AND PLANNING Research Institute Address before: No.3, Tongjin Road, Chengdu, Sichuan 610000 Patentee before: CHINA RAILWAY ERYUAN ENGINEERING GROUP Co.,Ltd. Patentee before: LUOYANG SUNRUI SPECIAL EQUIPMENT Co.,Ltd. Patentee before: CHINA RAILWAY ECONOMIC AND PLANNING Research Institute |
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