CN107130985A - A kind of hydraulic prop - Google Patents
A kind of hydraulic prop Download PDFInfo
- Publication number
- CN107130985A CN107130985A CN201710567150.4A CN201710567150A CN107130985A CN 107130985 A CN107130985 A CN 107130985A CN 201710567150 A CN201710567150 A CN 201710567150A CN 107130985 A CN107130985 A CN 107130985A
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- hydraulic cylinder
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- live
- stage hydraulic
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- 239000011148 porous material Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005065 mining Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 58
- 230000008093 supporting effect Effects 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000001976 improved effect Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
- E21D15/512—Arrangement of valves
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Actuator (AREA)
Abstract
A kind of hydraulic prop, belongs to mining supports equipment technical field.It is characterized in that：Including one-stage hydraulic cylinder, two-stage hydraulic cylinder and the triple-use valve being arranged between one-stage hydraulic cylinder and two-stage hydraulic cylinder, one-stage hydraulic cylinder is arranged on the surface of two-stage hydraulic cylinder, the intracavity inter-connection of one-stage hydraulic cylinder and two-stage hydraulic cylinder, and connected with triple-use valve, the upside of one-stage hydraulic cylinder is provided with top cover（15）, the downside of two-stage hydraulic cylinder is provided with base（1）.The one-stage hydraulic cylinder of this hydraulic prop is arranged on the surface of two-stage hydraulic cylinder, substantially increase the stroke of common hydraulic prop, and growth section need not be set, improve the use scope of common hydraulic prop, and good sealing effect, and it will not collide with due to the slight of live post and occur the situation of oil leak, so as to better ensure that the clean and tidy of working environment.
Description
Technical field
A kind of hydraulic prop, belongs to mining supports equipment technical field.
Background technology
Hydraulic prop is a kind of support equipment of new environment-friendly type, both can be supporting for high-grade general with metal hinge top beam
Adopt and use face timbering top plate and fully-mechanized mining working supporting termination with big gun, also can individually do a post or other temporary supportings
With.Suspension type hydraulic prop and conventional monomer hydraulic prop belong to one kind of hydraulic prop, conventional monomer hydraulic prop
Using cylinder seal, live post, which is not afraid of, collides with, but stroke is shorter, so as to cause the limited height of its supporting, it is necessary to increase in lower end
Plus increase section to increase its height, to use the supporting of the mine of different height；Suspension type hydraulic prop is in external poured monomer
One kind of hydraulic prop, its stroke is big, but uses live post sealing, and live post is by easy leakage of slightly colliding with.
Application No. ZL201320568703.5 Chinese utility model patent discloses a kind of floated two-stage stretching list
Body hydraulic prop, its one-level oil cylinder is assemblied in two-level oil cylinder, it is achieved thereby that two-stage stretching, increases stroke height, still
In use, Leakage is just occurred by slight impact in oil cylinder, easily pollutes working environment.
The content of the invention
The technical problem to be solved in the present invention is：Overcoming the deficiencies in the prior art, there is provided a kind of stroke is big, good sealing effect
And the hydraulic prop for increasing section need not be set.
The technical solution adopted for the present invention to solve the technical problems is：The hydraulic prop, it is characterised in that：Including
One-stage hydraulic cylinder, two-stage hydraulic cylinder and the triple-use valve being arranged between one-stage hydraulic cylinder and two-stage hydraulic cylinder, one-stage hydraulic cylinder
The intracavity inter-connection of the surface of two-stage hydraulic cylinder, one-stage hydraulic cylinder and two-stage hydraulic cylinder is arranged on, and is connected with triple-use valve,
The upside of one-stage hydraulic cylinder is provided with top cover, and the downside of two-stage hydraulic cylinder is provided with base.
It is preferred that, column cap is provided between described one-stage hydraulic cylinder and two-stage hydraulic cylinder, column cap, which is provided with, to be used for one-level
The intercommunicating pore that cylinder chamber is connected with two-stage hydraulic cylinder inner chamber, triple-use valve is arranged on column cap, and triple-use valve connects with intercommunicating pore
It is logical.
It is preferred that, described two-stage hydraulic cylinder includes two-level oil cylinder, two grades of live posts and second piston, and two-level oil cylinder is vertical
Set, two grades of live posts and second piston can slide up and down in two-level oil cylinder, and second piston is arranged on two grades of live posts
Upside, seals between second piston and two-level oil cylinder and sets, base is arranged on the downside of two grades of live posts and by two grades of live post lower ends
Closing.
It is preferred that, described two grades are provided with guide sleeve between live post and two-level oil cylinder, under the internal diameter on guide sleeve top is more than
The internal diameter in portion, guide sleeve top is set in two-level oil cylinder lower end and is fixedly connected with two-level oil cylinder, and the bottom of guide sleeve is set in
Two grades of live posts are outer and are slidably connected with two grades of live posts.
It is preferred that, fixed cover is provided between described guide sleeve and base, fixed cover top is fixedly connected with guide sleeve, Gu
Surely the bottom covered is removably connected with base.
It is preferred that, provided with the two-level spring for promoting two-stage hydraulic cylinder to reset in described two-stage hydraulic cylinder.
It is preferred that, described one-stage hydraulic cylinder includes one-level oil cylinder, one-level live post and first stage piston, one-level live post and one
Level piston can slide up and down in one-level oil cylinder, and first stage piston is arranged on the downside of one-level live post, and is lived with one-level
Post is fixedly connected, and is sealed and is set between first stage piston and one-level oil cylinder, and the upside closing of one-level live post is set, and top cover is arranged on one
On the upside of level live post.
It is preferred that, plunger is provided with described one-level live post, plunger is arranged on one-level live post upper end, and by one-level live post
End seal is closed, and top cover is connected with one-level live post and plunger simultaneously.
It is preferred that, provided with the one-level spring for promoting one-stage hydraulic cylinder to reset in described one-stage hydraulic cylinder.
It is preferred that, the middle part of described column cap is provided with the triple-use valve mounting hole of radial direction, and triple-use valve mounting hole connects with intercommunicating pore
Logical, triple-use valve is arranged in triple-use valve mounting hole.
Compared with prior art, the present invention is had an advantageous effect in that：
1st, the one-stage hydraulic cylinder of this hydraulic prop is arranged on the surface of two-stage hydraulic cylinder, makes common hydraulic prop
Stroke substantially increase, and growth section need not be set, the use scope of common hydraulic prop, and sealing is improved
Effect is good, and will not be collided with due to the slight of live post and occurred the situation of oil leak, so as to better ensure that working environment
It is clean and tidy.
2nd, column cap is arranged between one-stage hydraulic cylinder and two-stage hydraulic cylinder, so as to facilitate one-stage hydraulic cylinder and 2-level hydraulic
The connection of cylinder, makes the setting prop of one-stage hydraulic cylinder and two-stage hydraulic cylinder work and does not interfere with each other, intercommunicating pore can by one-stage hydraulic cylinder and
Two-stage hydraulic cylinder is connected, so as to facilitate the setting prop of one-stage hydraulic cylinder and two-stage hydraulic cylinder to operate.
3rd, second piston is arranged on the upside of two grades of live posts, in use, two grades of live posts are stretched downwards in the presence of hydraulic oil
Go out, so as to realize setting prop, it is to avoid setting prop action of the one-stage hydraulic cylinder to two grades of live posts is counteracted.
4th, guide sleeve can be oriented to two grades of live posts, so as to ensure that two grades of live posts are not in the position of radial direction in setting prop
Move, stable supporting effect can either be ensured, two-stage hydraulic cylinder can be protected again.
5th, fixed cover top is fixedly connected with guide sleeve, and bottom is removably connected with base, when base and fixed cover are solid
When connecting surely, two-stage hydraulic cylinder can act as lengthening section, and now the stroke of this hydraulic prop is small, when the big stroke supporting of needs
When, base is taken apart with fixed cover, now one-stage hydraulic cylinder and two-stage hydraulic cylinder can complete setting prop action, substantially increase
The stroke of hydraulic prop, can be adjusted as needed, easy to adjust, make hydraulic prop easy to use.
6th, two-level spring can promote two-stage hydraulic cylinder to reset, and two-stage hydraulic cylinder Rapid reset can be made after use, improve
Operating efficiency.
7th, first stage piston is arranged on the downside of one-level live post, so that in setting prop, one-level live post can be protruded upward, so that
Setting prop support action is completed, and the lifting column operation of one-level live post will not be impacted to 2-level hydraulic bar.
8th, the upper end closed of one-level live post, plunger, one-level live post and top cover can be fixedly connected by plunger, bonding strength
Height, and the carry out supporting that top cover can be stablized.
9th, one-level spring can make one-stage hydraulic cylinder Rapid reset, improve operating efficiency.
10th, the triple-use valve mounting hole of radial direction is provided with the middle part of column cap, triple-use valve mounting hole is connected with intercommunicating pore, so that one-level
Hydraulic cylinder and two-stage hydraulic cylinder are connected with triple-use valve, easy for installation.
Brief description of the drawings
Fig. 1 is the main view schematic cross-sectional view of hydraulic prop.
Fig. 2 is the partial enlarged drawing at A in Fig. 1.
Fig. 3 is the partial enlarged drawing at B in Fig. 1.
In figure：1st, base 101, notch 2, fixed cover 3, guide sleeve 4, two-level oil cylinder 5, two grades of live posts 6, two grades of bullets
Spring 7, second piston 8, column cap 801, intercommunicating pore 802, triple-use valve mounting hole 9, first stage piston 10, one-level oil cylinder 11, one
Level live post 12, one-level spring 13, hand are 14, plunger 15, top cover 16, pin 17, steel wire.
Embodiment
Fig. 1 ~ 3 are highly preferred embodiment of the present invention, and 1 ~ 3 the present invention will be further described below in conjunction with the accompanying drawings.
A kind of hydraulic prop, including one-stage hydraulic cylinder, two-stage hydraulic cylinder and it is arranged on one-stage hydraulic cylinder and two grades
Triple-use valve between hydraulic cylinder, one-stage hydraulic cylinder is arranged on the surface of two-stage hydraulic cylinder, one-stage hydraulic cylinder and two-stage hydraulic cylinder
Intracavity inter-connection, and connected with triple-use valve, the upside of one-stage hydraulic cylinder is provided with top cover 15, and the downside of two-stage hydraulic cylinder is provided with
Base 1.The one-stage hydraulic cylinder of this hydraulic prop is arranged on the surface of two-stage hydraulic cylinder, makes common hydraulic prop
Stroke substantially increase, and growth section need not be set, the use scope of common hydraulic prop, and sealing is improved
Effect is good, and will not be collided with due to the slight of live post and occurred the situation of oil leak, so as to better ensure that working environment
It is clean and tidy.
With reference to specific embodiment, the present invention will be further described, however persons familiar with the art it is to be appreciated that
It is that, in order to preferably explain, structure of the invention is inevitable beyond limited these here in connection with the detailed description that accompanying drawing is provided
Embodiment, and for some equivalents or common approach, be no longer described in detail herein, but still fall within the guarantor of the application
Protect scope.
As shown in Figure 1：One-stage hydraulic cylinder is arranged on the surface of two-stage hydraulic cylinder, and is coaxially disposed with two-stage hydraulic cylinder,
One-stage hydraulic cylinder is connected with the inner chamber of two-stage hydraulic cylinder, so as to when carrying out setting prop action, can complete to rise using a pumping plant
Column operation.
One-stage hydraulic cylinder includes one-level oil cylinder 10, one-level live post 11 and first stage piston 9.One-level oil cylinder 10 is both ends open
Cylinder, one-level oil cylinder 10 is vertically arranged.One-level live post 11 is also the cylinder of both ends open, and the external diameter of one-level live post 11 is slightly smaller
In the internal diameter of one-level oil cylinder 10, one-level live post 11 is co-axially located in one-level live post 11, and one-level live post 11 can be along one-level oil cylinder
10 slide axially.First stage piston 9 is also the cylinder of both ends open, and first stage piston 9 is co-axially located in one-level oil cylinder 10, one-level
The inner wall sealing of piston 9 and one-level oil cylinder 10 is set, and first stage piston 9 can sliding axially along one-level oil cylinder 10, first stage piston 9
The downside of one-level live post 11 is arranged on, the top of first stage piston 9 is stretched into one-level live post 11 and is fixedly connected with one-level live post 11,
First stage piston 9 and the synchronization lifting of one-level live post 11.
One-level oil cylinder 10 is stretched out in the upper end of one-level live post 11, and the upper end of one-level live post 11 is provided with plunger 14, and plunger 14 is set
Set in one-level live post 11 and with the inner wall sealing of one-level live post 11.The bottom of top cover 15 be provided with blind hole, one-level live post 11 it is upper
End is stretched into the blind hole of top cover 15, and the top of plunger 14 also is located in the blind hole of top cover 15.Top cover 15, the one-level post of one-level live post 11
Plug 14 is fixedly connected by being arranged on the pin 16 on right side.One-level live post 11 realizes the sealing of upper end by plunger 14, and leads to
Cross top cover 15 and play support action, so as to avoid damaging one-level live post 11, so as to influence the use of one-level live post 11.
Provided with hand 13 between one-level live post 11 and one-level oil cylinder 10, hand is the cylinders that 13 be upper and lower ends opening, and hand
13 upper end diameter be more than lower end diameter, hand 13 bottom be set in one-level oil cylinder 10 upper end and with one-level oil cylinder
10 are fixedly connected, and hand is slidably located in 13 top on the outside of one-level live post 11, and hand seals setting 13 with one-level live post 11,
So as to be oriented to one-level live post 11, it is to avoid displacement radially occurs in lifting column for one-level live post 11, so as to influence branch
Effect is protected, and one-level live post 11 and one-level oil cylinder 10 are caused to damage.Hand, which is provided with 13 right side, is used for Handheld Division, so that convenient
The movement and transport of this hydraulic prop.
Two-stage hydraulic cylinder includes two-level oil cylinder 4, two grades of live posts 5 and second piston 7, the circle of the both ends open of two-level oil cylinder 4
Cylinder, two-level oil cylinder 4 is vertically arranged.Two grades of live posts 5 are also the cylinder of both ends open, and the external diameter of two grades of live posts 5 is slightly smaller than two grades
The internal diameter of oil cylinder 4, two grades of live posts 5 are co-axially located in two-level oil cylinder 4, and two grades of live posts 5 can be sliding along the axial direction of two-level oil cylinder 4
It is dynamic.Second piston 7 is also the cylinder of both ends open, and second piston 7 is co-axially located in two-level oil cylinder 4, second piston 7 and two grades
The inner wall sealing of oil cylinder 4 is set, and second piston 7 can sliding axially along two-level oil cylinder 4, second piston 7 is arranged on two grades of work
The upside of post 5, the bottom of second piston 7 is stretched into two grades of live posts 5 and is fixedly connected with two grades of live posts 5, second piston 7 and two grades
The synchronization lifting of live post 5.
Two-level oil cylinder 4 is stretched out in the lower end of two grades of live posts 5, and base 1 is arranged on the downside of two grades of live posts 5, and base 1 is lower end seal
The cylinder closed, the lower end of two grades of live posts 5 is stretched into base 1 and is fixedly connected with base 1, and close between base 1 and two grades of live posts 5
Envelope is set, and base 1 is by the lower end closed of two grades of live posts 5, it is achieved thereby that hydraulic oil promotes the lifting column of two grades of live posts 5.
Column cap 8 is provided between one-level oil cylinder 10 and two-level oil cylinder 4, triple-use valve is arranged in column cap 8, and triple-use valve is respectively with one
The inner chamber of level live post 11 is connected with the inner chamber of two grades of live posts 5.Provided with the one-level for promoting one-level live post 11 to reset in one-level live post 11
Spring 12, the upper end of one-level spring 12 is fixedly connected with plunger 14, and the lower end of one-level spring 12 is fixed with the upper end of column cap 8 to be connected
Connect, one-level spring 12 is coaxially disposed with one-level live post 11, so as to promote the Rapid reset of one-level live post 11, there is provided high work
Efficiency, additionally it is possible to avoid the elastic force and the axis of one-level live post 11 of one-level spring 12 from shifting.Provided with promotion in two grades of live posts 5
The two-level spring 6 that two grades of live posts 5 reset, the upper end of two-level spring 6 is fixedly connected with the lower end of column cap 8, the lower end of two-level spring 6
It is fixedly connected, two-level spring 6 is coaxially disposed with two grades of live posts 5, so as to promote two grades of Rapid resets of live post 5, carries with base 1
High operating efficiency, additionally it is possible to avoid the elastic force and the axis of two grades of live posts 5 of two-level spring 6 from shifting.
As shown in Figure 2：Guide sleeve 3 is provided between two-level oil cylinder 4 and two grades of live posts 5, guide sleeve 3 is the circle of open at both ends
Cylinder, the upper-end inner diameter of guide sleeve 3 is more than bottom diameter, the upper end of guide sleeve 3 be set in the lower end of two-level oil cylinder 4 and with two grades of oil
Cylinder 4 is fixedly connected, and the lower end of guide sleeve 3 is set in two grades of outsides of live post 5, seals and sets between guide sleeve 3 and two grades of live posts 5,
And guide sleeve 3 can slide axially with two grades of live posts 5, guide sleeve 3 being capable of being oriented to two grades of live posts 5, it is to avoid in lifting column
The displacement of Shi Fasheng radial directions, both ensure that the supporting of this hydraulic prop was consolidated, and to two grades of live posts 5 and two-level oil cylinder 4
Protective effect is arrived, using effect is good.
Fixed cover 2 is provided between guide sleeve 3 and base 1, fixed cover 2 is the cylinder of both ends open, the lower end of guide sleeve 3
External diameter is less than the external diameter of upper end, forms guide sleeve fixed part, the top external diameter of base 1 is less than the external diameter of bottom, so as to form bottom
Seat fixed part, the upper end of fixed cover 2 is set in outside guide sleeve fixed part, and is fixedly connected by bolt with guide sleeve fixed part,
The lower end of fixed cover 2 is set on the outside of base fixed part, and is removably connected with base fixed part by bolt.When needs make
When hydraulic prop stroke is smaller, set 3 is directed to by fixed cover 2 and is fixedly connected with base 1, now two-stage hydraulic cylinder
Lengthening section can be regarded as, when the stroke of the hydraulic prop needed to use is larger, fixed cover 2 is taken apart with base 1, so as to
The stroke of hydraulic prop is enough greatly increased, and it is easy to use, it is easy to adjust.
Base 1 is provided with base link slot around inwall, and two grades of lower loops of live post 5 also are provided with live post link slot around outer wall, and
It is circular annular chamber that base link slot and live post link slot, which are encircled into section, and base 1 and two grades of live posts 5 are by being arranged on base
Fixation with steel wire connection in link slot and live post link slot, steel wire side is located in base link slot, and opposite side connects positioned at live post
It is easy to connect and be connected firmly in access slot.Notch 101 is provided with the left of the middle part of base 1, so that convenient lay steel wire.
As shown in Figure 3：Column cap 8 is vertically arranged cylinder, and the external diameter of the top and bottom of column cap 8 is less than the outer of middle part
Footpath, so as to form the connecting portion for being connected with one-level oil cylinder 10 and two-level oil cylinder 4, the diameter of connecting portion is slightly smaller than one-level oil cylinder
10 or the internal diameter of two-level oil cylinder 4.
The connecting portion of the upper end of column cap 8 is stretched into one-level oil cylinder 10 and with being welded in one-level oil cylinder 10, the connection of the lower end of column cap 8
Portion stretches into two-level oil cylinder 4 and welded with two-level oil cylinder 4, so as to complete the docking of one-level oil cylinder 10 and two-level oil cylinder 4, and keeps away
One-level oil cylinder 10 is exempted from and two-level oil cylinder 4 interferes.
The upper and lower ends of column cap 8 are equipped with spring connector, and spring connector is be co-axially located at the two ends of column cap 8 blind
Hole, spring connecting hole is mainly used in the connection of one-level spring 12 and two-level spring 6.
When mounted, the connector of " m " shape is equipped with spring installing port, one-level spring 12 or two-level spring 6 are with being connected
The middle part of part is flexibly connected, and the opening of connector is directed away from the side of column cap 8, and two ends of connector are fixed in spring peace
Fill on intraoral wall, so as to facilitate the installation of one-level spring 12 or two-level spring 6, and firmly install, and the middle part energy of connector
Enough one-level spring 12 or two-level spring 6 are carried out spacing.
Intercommunicating pore 801 is coaxially provided with column cap 8, the upper end of intercommunicating pore 801 is connected with the spring installing port on top, lower end with
The spring installing port connection of bottom, the diameter of intercommunicating pore 801 is less than the diameter of spring installing port, so as to facilitate connector
Location and installation.
The middle part of column cap 8 is provided with the triple-use valve mounting hole 802 of radial direction, middle part and the intercommunicating pore 801 of triple-use valve mounting hole 802
Middle part connection, so as to facilitate triple-use valve to be connected with one-level live post 11 and two grades of inner chambers of live post 5.Triple-use valve is pacified installed in triple-use valve
Fill in hole 801.
The above described is only a preferred embodiment of the present invention, being not the limitation for making other forms to the present invention, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But it is every without departing from technical solution of the present invention content, the technical spirit according to the present invention is to above example institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection domain of technical solution of the present invention.
Claims (10)
1. a kind of hydraulic prop, it is characterised in that：Including one-stage hydraulic cylinder, two-stage hydraulic cylinder and it is arranged on one-level hydraulic pressure
Triple-use valve between cylinder and two-stage hydraulic cylinder, one-stage hydraulic cylinder is arranged on the surface of two-stage hydraulic cylinder, one-stage hydraulic cylinder and two
The intracavity inter-connection of level hydraulic cylinder, and connected with triple-use valve, the upside of one-stage hydraulic cylinder is provided with top cover（15）, two-stage hydraulic cylinder
Downside be provided with base（1）.
2. hydraulic prop according to claim 1, it is characterised in that：Described one-stage hydraulic cylinder and two-stage hydraulic cylinder
Between be provided with column cap（8）, column cap（8）It is provided with the intercommunicating pore for being used for connecting one-stage hydraulic cylinder inner chamber with two-stage hydraulic cylinder inner chamber
（801）, triple-use valve is installed in column cap（8）On, and triple-use valve and intercommunicating pore（801）Connection.
3. hydraulic prop according to claim 1 or 2, it is characterised in that：Described two-stage hydraulic cylinder includes two grades
Oil cylinder（4）, two grades of live posts（5）And second piston（7）, two-level oil cylinder（4）It is vertically arranged, two grades of live posts（5）And second piston
（7）It can slide up and down installed in two-level oil cylinder（4）It is interior, second piston（7）It is arranged on two grades of live posts（5）Upside, two grades of work
Plug（7）With two-level oil cylinder（4）Between seal set, base（1）It is arranged on two grades of live posts（5）Downside and by two grades of live posts（5）
Lower end closed.
4. hydraulic prop according to claim 3, it is characterised in that：Two grades of described live posts（5）With two-level oil cylinder
（4）Between be provided with guide sleeve（3）, guide sleeve（3）The internal diameter on top is more than the internal diameter of bottom, guide sleeve（3）Top is set in two
Level oil cylinder（4）Lower end and and two-level oil cylinder（4）It is fixedly connected, guide sleeve（3）Bottom be set in two grades of live posts（5）It is outer and with two
Level live post（5）It is slidably connected.
5. hydraulic prop according to claim 4, it is characterised in that：Described guide sleeve（3）With base（1）Between
Provided with fixed cover（2）, fixed cover（2）Top and guide sleeve（3）It is fixedly connected, fixed cover（2）Bottom and base（1）Detachably
Connection.
6. hydraulic prop according to claim 1, it is characterised in that：Provided with promotion two in described two-stage hydraulic cylinder
The two-level spring that level hydraulic cylinder resets（6）.
7. hydraulic prop according to claim 1 or 2, it is characterised in that：Described one-stage hydraulic cylinder includes one-level
Oil cylinder（10）, one-level live post（11）And first stage piston（9）, one-level live post（11）And first stage piston（9）It can slide up and down
Installed in one-level oil cylinder（10）It is interior, first stage piston（9）It is arranged on one-level live post（11）Downside, and with one-level live post（11）It is fixed
Connection, first stage piston（9）With one-level oil cylinder（10）Between seal set, one-level live post（11）Upside closing set, top cover
（15）It is arranged on one-level live post（11）Upside.
8. hydraulic prop according to claim 7, it is characterised in that：Described one-level live post（11）It is interior to be provided with plunger
（14）, plunger（14）It is arranged on one-level live post（11）Upper end, and by one-level live post（11）Upper end closed, top cover（15）Simultaneously with one
Level live post（11）And plunger（14）Connection.
9. hydraulic prop according to claim 1, it is characterised in that：Provided with promotion one in described one-stage hydraulic cylinder
The one-level spring that level hydraulic cylinder resets（12）.
10. hydraulic prop according to claim 2, it is characterised in that：Described column cap（8）Middle part provided with radially
Triple-use valve mounting hole（802）, triple-use valve mounting hole（802）With intercommunicating pore（801）Connection, triple-use valve is installed installed in triple-use valve
Hole（802）It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710567150.4A CN107130985B (en) | 2017-07-12 | 2017-07-12 | Single hydraulic prop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710567150.4A CN107130985B (en) | 2017-07-12 | 2017-07-12 | Single hydraulic prop |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107130985A true CN107130985A (en) | 2017-09-05 |
| CN107130985B CN107130985B (en) | 2023-11-03 |
Family
ID=59737467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710567150.4A Active CN107130985B (en) | 2017-07-12 | 2017-07-12 | Single hydraulic prop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107130985B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201225159Y (en) * | 2008-05-30 | 2009-04-22 | 赵炳昌 | Short-specification long-stroke single hydraulic prop |
| CN101655010A (en) * | 2009-09-18 | 2010-02-24 | 陶宾 | Dual-protection single hydraulic prop |
| CN201554477U (en) * | 2009-11-20 | 2010-08-18 | 兖矿集团有限公司 | Novel individual hydraulic prop |
| CN203515612U (en) * | 2013-09-13 | 2014-04-02 | 太原市考尔机电工程有限公司 | Suspension type dual-stage stretchable individual hydraulic prop |
| CN205400761U (en) * | 2016-03-10 | 2016-07-27 | 湖北万安通复合再制造科技有限公司 | Single -body hydraulic supporter |
| CN206942794U (en) * | 2017-07-12 | 2018-01-30 | 山东瀚业机械有限公司 | A kind of hydraulic prop |
-
2017
- 2017-07-12 CN CN201710567150.4A patent/CN107130985B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201225159Y (en) * | 2008-05-30 | 2009-04-22 | 赵炳昌 | Short-specification long-stroke single hydraulic prop |
| CN101655010A (en) * | 2009-09-18 | 2010-02-24 | 陶宾 | Dual-protection single hydraulic prop |
| CN201554477U (en) * | 2009-11-20 | 2010-08-18 | 兖矿集团有限公司 | Novel individual hydraulic prop |
| CN203515612U (en) * | 2013-09-13 | 2014-04-02 | 太原市考尔机电工程有限公司 | Suspension type dual-stage stretchable individual hydraulic prop |
| CN205400761U (en) * | 2016-03-10 | 2016-07-27 | 湖北万安通复合再制造科技有限公司 | Single -body hydraulic supporter |
| CN206942794U (en) * | 2017-07-12 | 2018-01-30 | 山东瀚业机械有限公司 | A kind of hydraulic prop |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107130985B (en) | 2023-11-03 |
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