CN207892621U - A kind of middle part movement support structures from mobile tunnel inverted arch trestle - Google Patents
A kind of middle part movement support structures from mobile tunnel inverted arch trestle Download PDFInfo
- Publication number
- CN207892621U CN207892621U CN201820252081.8U CN201820252081U CN207892621U CN 207892621 U CN207892621 U CN 207892621U CN 201820252081 U CN201820252081 U CN 201820252081U CN 207892621 U CN207892621 U CN 207892621U
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- China
- Prior art keywords
- sliding tube
- supporting rack
- lift actuator
- support
- inverted arch
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of middle part movement support structures from mobile tunnel inverted arch trestle comprising supporting rack is respectively equipped with the roller group that connection is rolled with trestle on two insides of supporting rack；The bottom of support frame as described above is equipped at least three height-adjustable support legs, the support leg includes sliding tube, sliding tube is slidably connected on the sliding cavity inside supporting rack, the first lift actuator that driving sliding tube is moved up and down along sliding cavity is equipped in sliding cavity, the lower slide of the sliding tube is connected with support base, which is moved up and down by the second lift actuator drive being located in sliding tube.The utility model is not only simple in structure in such a way that twin-stage adjusts support leg height, and can ensure the stability of supporting rack support, so that it is guaranteed that the safety during constructing tunnel.
Description
Technical field
The utility model is related to tunnel construction machinery field more particularly to a kind of middle part work from mobile tunnel inverted arch trestle
Dynamic support construction.
Background technology
In the prior art, the support leg height on movable support frame can only realize that single-stage is adjusted, due to the ground of tunnel internal
Face out-of-flatness only adjusts the height of support leg by single-stage, and the bottom that cannot achieve each support leg is all supported on ground, in this way
It is easy for causing movable support frame entirety astasia, influences the overall operation of trestle.
Invention content
In order to solve deficiency in the prior art, the purpose of this utility model is to provide a kind of more stable shiftings certainly of support
The middle part movement support structures of dynamic tunnel inverted arch trestle.
To achieve the above object, the utility model uses following technical scheme：
A kind of middle part movement support structures from mobile tunnel inverted arch trestle, including supporting rack, on two insides of supporting rack
It is respectively equipped with the roller group that connection is rolled with trestle；The bottom of support frame as described above is equipped at least three height-adjustable supports
Foot, the support leg include sliding tube, and sliding tube is slidably connected on the sliding cavity inside supporting rack, and driving is equipped in sliding cavity
The first lift actuator that sliding tube is moved up and down along sliding cavity, the lower slide of the sliding tube are connected with support base, should
Support base is moved up and down by the second lift actuator drive being located in sliding tube.
First lift actuator and the second lift actuator are oil cylinder, and the stroke of the first lift actuator is more than
The stroke of second lift actuator.
The roller group includes upper roller and bottom roller.
There are four the support legs.
The utility model using the above structure, the coarse adjustment of support leg height is realized by the first lift actuator, then
The accurate adjustment section of height is realized by the second lift actuator again so that each support base can be supported on ground, so that it is guaranteed that
The stability of supporting rack.The utility model is not only simple in structure, and can be true in such a way that twin-stage adjusts support leg height
The stability for protecting supporting rack support, so that it is guaranteed that the safety during constructing tunnel.
Description of the drawings
The utility model is described in further details below in conjunction with the drawings and specific embodiments；
Fig. 1 is the schematic diagram of the utility model.
Specific implementation mode
As shown in Figure 1, the utility model includes supporting rack 1, it is respectively equipped on two insides of supporting rack 1 and rolls company with trestle
The roller group connect；The bottom of support frame as described above 1 is equipped at least three height-adjustable support legs 2, and the support leg 2 includes sliding
Dynamic pipe 21, sliding tube 21 are slidably connected on the sliding cavity inside supporting rack 1, and driving sliding tube 21 is equipped in sliding cavity along sliding
The first lift actuator 22 that chamber moves up and down, the lower slide of the sliding tube 21 are connected with support base 23, the support base
23 the second lift actuator 24 drive by being located in sliding tube 21 moves up and down.
First lift actuator, 22 and second lift actuator 24 is oil cylinder, and the row of the first lift actuator 22
Journey is more than the stroke of the second lift actuator 24.Using the above structure so that the first lift actuator 22 can realize support leg 2
The coarse adjustment of height, and the second lift actuator then 24 accurate adjustment sections for realizing 2 height of support leg so that each support base 23 can
It is supported on ground, ensures the stability of supporting rack 1.
The roller group includes upper roller 3 and bottom roller 4.Such structure, can enable the smoothly edge of supporting rack 1
Trestle moves.
There are four the support legs 2.Four support legs 2, which are square, is located at the bottom of supporting rack 1.
The operation principle of the utility model：When supporting rack 1 will be supported on the ground in tunnel, the first lifting driving is first passed through
Device 22 drive 21 downlink certain distance of sliding tube, then again by the second lift actuator 24 drive support base 23 downlink by support
In on ground.It in such a way that twin-stage adjusts 2 height of support leg, is not only simple in structure, and can ensure what supporting rack 1 supported
Stability, so that it is guaranteed that the safety during constructing tunnel.
Claims (4)
1. a kind of, oneself moves the middle part movement support structures of tunnel inverted arch trestle, including supporting rack, divides on two insides of supporting rack
The roller group of connection She You not be rolled with trestle；The bottom of support frame as described above is equipped at least three height-adjustable support legs,
It is characterized in that：The support leg includes sliding tube, and sliding tube is slidably connected on the sliding cavity inside supporting rack, in sliding cavity
Equipped with the first lift actuator that driving sliding tube is moved up and down along sliding cavity, the lower slide of the sliding tube is connected with branch
Seat is supportted, which is moved up and down by the second lift actuator drive being located in sliding tube.
2. a kind of middle part movement support structures from mobile tunnel inverted arch trestle according to claim 1, it is characterised in that：
First lift actuator and the second lift actuator are oil cylinder, and the stroke of the first lift actuator is more than the second lifting
The stroke of driver.
3. a kind of middle part movement support structures from mobile tunnel inverted arch trestle according to claim 1, it is characterised in that：
The roller group includes upper roller and bottom roller.
4. a kind of middle part movement support structures from mobile tunnel inverted arch trestle according to claim 1, it is characterised in that：
There are four the support legs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820252081.8U CN207892621U (en) | 2018-02-12 | 2018-02-12 | A kind of middle part movement support structures from mobile tunnel inverted arch trestle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820252081.8U CN207892621U (en) | 2018-02-12 | 2018-02-12 | A kind of middle part movement support structures from mobile tunnel inverted arch trestle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207892621U true CN207892621U (en) | 2018-09-21 |
Family
ID=63540939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820252081.8U Active CN207892621U (en) | 2018-02-12 | 2018-02-12 | A kind of middle part movement support structures from mobile tunnel inverted arch trestle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207892621U (en) |
-
2018
- 2018-02-12 CN CN201820252081.8U patent/CN207892621U/en active Active
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