CN209621319U - Normal pressure tool changing device - Google Patents
Normal pressure tool changing device Download PDFInfo
- Publication number
- CN209621319U CN209621319U CN201920172718.7U CN201920172718U CN209621319U CN 209621319 U CN209621319 U CN 209621319U CN 201920172718 U CN201920172718 U CN 201920172718U CN 209621319 U CN209621319 U CN 209621319U
- Authority
- CN
- China
- Prior art keywords
- knife cylinder
- spool
- tool changing
- normal pressure
- cutter
- Prior art date
- 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.)
- Active
Links
Landscapes
- Safety Valves (AREA)
Abstract
The utility model discloses a kind of normal pressure tool changing devices, it includes knife cylinder mounting base, the knife cylinder being arranged in knife cylinder mounting base, and it is installed on cutter of the knife cylinder wherein on one end, the valve body for being sheathed on knife cylinder and being mutually fixedly connected with knife cylinder mounting base, set on driving mechanism valve intracorporal spool and opened or closed with movable valve plug, spool main body is spherical in shape, when cutter is in running order, knife cylinder is arranged in spool, the axis collinear of accessibke porosity inside the axis and valve seat of inner via hole in the middle part of spool for passing through for knife cylinder, spool is in fully open state at this time, when a tool is changed, the axis of inner via hole and the axis perpendicular of accessibke porosity, spool is in close state at this time.The utility model has the advantage that the utility model realizes the function of normal pressure tool changing using spherical valve core compared with prior art, and seal assembly keeps sealing performance more preferable, and voltage endurance capability is higher, the longer life expectancy used.
Description
Technical field
The utility model relates to a kind of normal pressure tool changing devices.
Background technique
With urban development, underground traffic is also fast-developing.The construction depth of subway and subterranean tunnel is also deeper and deeper.And
Shield construction is the main engineering method of tunnel construction, and the cutter on cutterhead is due to cutting always the soil body, inevitably
It wears, therefore tool changing becomes inevitable process during a tunnel excavation.Tool changing with pressure is such as used, not only efficiency
It is low, and the requirement to personnel is very high, needs special operation workers that can just carry out, it carries out after tool changing with pressure to personnel's health
It endangers larger.Risk with tool changing under pressure condition is also larger, as soil body shakiness is easily caused danger.
Summary of the invention
A kind of normal pressure tool changing device for the longer life expectancy that the purpose of the utility model is to provide voltage endurance capabilities is higher, uses.
In order to achieve the above objectives, the technical solution adopted in the utility model is: a kind of normal pressure tool changing device comprising knife cylinder
It mounting base, the knife cylinder being arranged in the knife cylinder mounting base and is installed on cutter of the knife cylinder wherein on one end, is arranged
In the valve body being mutually fixedly connected on the knife cylinder and with the knife cylinder mounting base, it is set to the intracorporal spool of the valve and drives valve
The driving mechanism that core opens or closes, the spool main body is spherical in shape, and when cutter is in running order, the knife cylinder is arranged in institute
It states in spool, the axis collinear of the accessibke porosity inside the axis and valve seat of the inner via hole in the middle part of spool for passing through for knife cylinder, this
When spool be in fully open state, when a tool is changed, the axis perpendicular of the axis of the inner via hole and the accessibke porosity,
Spool is in close state at this time.
Optimization, the driving mechanism is rotational fuel tank.
Optimization, the one end that the knife cylinder is equipped with cutter is its front end, and the other end is rear end, the knife cylinder
Rear cover including hollow and rear end in the knife cylinder ontology and sealing cover of open-like shape on end thereafter.
Optimization, when cutter is in running order, between the front end of the spool and its top or the valve body of upper side
Equipped with seal assembly, the position of the valve body equipped with seal assembly is installation region.
Optimization, the installation region is stepped comprising step-like positioned at matching with the installation region
Mounting ring, by front end to rear end, step is followed successively by the first rank and second-order and third rank, the first rank of the mounting ring and
Several sealing rings are respectively equipped on the circumferential surface of three ranks, the end face of the second-order is equipped with first annular slot, described first annular
It is equipped with the pressure spring that mounting ring is pressed to spool in slot, offers the second annular groove, second ring on the third rank rear end face
The second sealing ring is equipped in shape slot, there is second sealing ring part to be located on the spool.
Optimization, on the rear end inner sidewall border of the knife cylinder mounting base and/knife cylinder front end is set on lateral wall border
There is sealing ring.
Since above-mentioned technical proposal is used, the utility model has the advantage that the utility model compared with prior art
The function of normal pressure tool changing is realized using spherical valve core, seal assembly keeps sealing performance more preferable, and voltage endurance capability is higher, the service life used
It is longer.
Detailed description of the invention
Attached drawing 1 is the attachment structure schematic diagram of the utility model when ball valve is opened；
Attached drawing 2 is the attachment structure schematic diagram of the utility model when ball valve is closed；
Attached drawing 3 is partial view A in attached drawing 1；
Attached drawing 4 is the utility model tool changing flow diagram
Attached drawing 5 is the structural schematic diagram of mounting ring.
Specific embodiment
Embodiment shown in reference to the accompanying drawing is further described the utility model.
As shown in Figure 1, 2, normal pressure tool changing device include knife cylinder mounting base 0, the knife cylinder being arranged in the knife cylinder mounting base,
And it is installed on cutter 1 of the knife cylinder wherein on one end, is sheathed on the knife cylinder and mutually solid with the knife cylinder mounting base
Surely the valve body 15 that connects, set on the driving mechanism valve intracorporal spool 5 and opened or closed with movable valve plug 5.The drive
Motivation structure is rotational fuel tank 3.
5 main body of spool is spherical in shape, and when cutter 1 is in running order, the knife cylinder is arranged in the spool 5, valve
The axis collinear of accessibke porosity inside the axis and valve seat of inner via hole in the middle part of core 5 for passing through for knife cylinder, spool 5 is at this time
Fully open state, when replacing cutter 1, the axis perpendicular of the axis of the inner via hole and the accessibke porosity, spool 5 at this time
It is in close state.
The one end that the knife cylinder is equipped with cutter 1 is its front end, and the other end is rear end, during the knife cylinder includes
Empty and rear end is set to the rear cover 9 on end thereafter in the knife cylinder ontology 2 and sealing cover of open-like shape.
When cutter 1 is in running order, it is equipped between the front end of the spool and its top or the valve body of upper side close
Sealing assembly 4, the position of the valve body equipped with seal assembly 4 are installation region.Installation region is stepped comprising be located at
The step-like mounting ring that the installation region matches, by front end to rear end, step be followed successively by the first rank 6 and second-order 7 and
Several sealing rings 14, the second-order 7 are respectively equipped on third rank 8, the first rank 6 of the mounting ring and the circumferential surface of third rank 8
End face be equipped with first annular slot 9, the first sealing ring 10 is equipped in the first annular slot 9 and for by the first sealing ring
10 press to the pressure spring 11 of spool with mounting ring, offer the second annular groove 12 on 8 rear end face of third rank, and described second
The second sealing ring 13 is equipped in annular groove 12, partial region is connected and makes between the first annular slot 9 and the second annular groove 12
The region 17 of connection can be passed through to second sealing ring 13 formation extruding, the second sealing ring of raising by obtaining first sealing ring 10
To improve the second sealing ring 13 to the sealing effect of spool 5, second sealing ring 13 has pressing force between 13 and spool 5
There is part to be located on the spool 5.On the rear end inner sidewall border of the knife cylinder mounting base 0 and on the outside of/knife cylinder front end
Wall border is equipped with sealing ring 14.
As shown in figure 3, ball valve is open state under working normally, when detecting tool wear, when needing tool changing, first will
The knife cylinder of fixed cutting tool is extracted out.Because the rear end of knife cylinder mounting base and the front end of knife cylinder have matching to realize knife cylinder ontology and knife cylinder
The sealing ring sealed between mounting base, so the case where being not in the leakage of excavation face mud.After knife cylinder reaches certain position, close
Ball valve is closed, ball valve has completely cut off the mud of excavation face, at this moment can normal pressure replacement cutter.After having replaced, according to opposite process,
Again knife cylinder is installed in place.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention.
All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it
It is interior.
Claims (6)
1. a kind of normal pressure tool changing device comprising knife cylinder mounting base, the knife cylinder being arranged in the knife cylinder mounting base and installation
In the cutter on the knife cylinder wherein one end, the valve that is sheathed on the knife cylinder and is mutually fixedly connected with the knife cylinder mounting base
Body, set on the driving mechanism valve intracorporal spool and opened or closed with movable valve plug, it is characterised in that: the spool master
Body is spherical in shape, and when cutter is in running order, the knife cylinder is arranged in the spool, is used to pass through for knife cylinder in the middle part of spool
The axis of inner via hole and the axis collinear of the accessibke porosity inside valve seat, spool is in fully open state at this time, when replacement cutter
When, the axis perpendicular of the axis of the inner via hole and the accessibke porosity, spool is in close state at this time.
2. normal pressure tool changing device according to claim 1, it is characterised in that: the driving mechanism is rotational fuel tank.
3. normal pressure tool changing device according to claim 1, it is characterised in that: the one end that the knife cylinder is equipped with cutter is
Its front end, the other end are rear end, and the knife cylinder includes hollow and knife cylinder ontology and sealing of the rear end in open-like shape
The rear cover being covered on end thereafter.
4. normal pressure tool changing device according to claim 1, it is characterised in that: when cutter is in running order, the spool
Front end and its top or upper side valve body between be equipped with seal assembly, the position of the valve body equipped with seal assembly is
Installation region.
5. normal pressure tool changing device according to claim 4, it is characterised in that: the installation region is stepped comprising
Positioned at the step-like mounting ring to match with the installation region, by front end to rear end, step is followed successively by the first rank and second
Several sealing rings, the second-order are respectively equipped on rank and third rank, the first rank of the mounting ring and the circumferential surface of third rank
End face be equipped with first annular slot, the pressure spring that mounting ring is pressed to spool, the third rank are equipped in the first annular slot
The second annular groove is offered on rear end face, the second sealing ring is equipped in second annular groove, and second sealing ring has portion
Divide and is located on the spool.
6. normal pressure tool changing device according to claim 1, it is characterised in that: the rear end inner sidewall of the knife cylinder mounting base
On border and/knife cylinder front end lateral wall border is equipped with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920172718.7U CN209621319U (en) | 2019-01-31 | 2019-01-31 | Normal pressure tool changing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920172718.7U CN209621319U (en) | 2019-01-31 | 2019-01-31 | Normal pressure tool changing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209621319U true CN209621319U (en) | 2019-11-12 |
Family
ID=68452785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920172718.7U Active CN209621319U (en) | 2019-01-31 | 2019-01-31 | Normal pressure tool changing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209621319U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736820A (en) * | 2019-01-31 | 2019-05-10 | 中交天和机械设备制造有限公司 | Normal pressure tool changing device |
-
2019
- 2019-01-31 CN CN201920172718.7U patent/CN209621319U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736820A (en) * | 2019-01-31 | 2019-05-10 | 中交天和机械设备制造有限公司 | Normal pressure tool changing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209621319U (en) | Normal pressure tool changing device | |
| CN105019910A (en) | Shield tail sealing device and shield tunneling machine | |
| CN202732968U (en) | Lip-shaped sealing ring of rotary shaft | |
| CN103267138A (en) | Quick-opening valve core | |
| CN201155570Y (en) | Water isolation pump guiding type high pressure fresh water valve | |
| CN109736820A (en) | Normal pressure tool changing device | |
| CN201972985U (en) | Opening-closing bilateral control cartridge valve | |
| CN204851269U (en) | Shield tail sealing device and shield construct machine | |
| CN110295861B (en) | Tool for reducing equivalent circulating density | |
| CN212774297U (en) | Articulated sealing device and shield tunneling machine thereof | |
| CN210949938U (en) | Precision proportional valve | |
| CN100560931C (en) | Oil well electric pump separate-extraction intelligent joint | |
| CN209569340U (en) | A kind of underwater rotary sealing matched with sinking method shaft excavation machine | |
| CN101303088B (en) | Handle pilot valve | |
| CN205530428U (en) | Hydraulic crushing hammers into shape for loader | |
| CN209041571U (en) | A kind of self-sealing fastening-type air shroud structure | |
| CN101776158B (en) | Four-sided valve | |
| CN202500495U (en) | Check valve installed on roller bit | |
| CN201212567Y (en) | Hand pilot valve | |
| CN213808889U (en) | High-frequency cut-off valve | |
| CN212429731U (en) | Double-oil-seal oil leakage prevention structure for main shaft of vertical shaft impact crusher | |
| CN215762525U (en) | Waterproof sealing ring structure for oil cylinder of crusher on shield | |
| CN203463656U (en) | Shaft-end sealing mechanism of hollow blade | |
| CN203239271U (en) | Annular preventer | |
| CN209924718U (en) | Hydraulic door closer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |