CN108100918A - It is multigroup to close sealed double guiding jack - Google Patents
It is multigroup to close sealed double guiding jack Download PDFInfo
- Publication number
- CN108100918A CN108100918A CN201611061824.5A CN201611061824A CN108100918A CN 108100918 A CN108100918 A CN 108100918A CN 201611061824 A CN201611061824 A CN 201611061824A CN 108100918 A CN108100918 A CN 108100918A
- Authority
- CN
- China
- Prior art keywords
- end cap
- rear end
- oil cylinder
- piston
- wall
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/26—Adaptations or arrangements of pistons
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Actuator (AREA)
Abstract
The invention discloses a kind of multigroup sealed double guiding jack of conjunction, including oil cylinder, piston component, punching covers and seal assembly, oil cylinder one end is equipped with rear end cap, the piston component includes piston head and piston rod, the outer wall that the piston head is contacted with oil cylinder is set there are two guidance tape, piston head outer wall between two guidance tapes combines two kinds of sufficiently sealed oil cylinder inner walls of seal combination mode and piston head contact surface using hole with stepped seal combination and hole quad seal, piston rod is combined between being covered with punching using axis with quad seal, rear end cap inside and outside wall is using axis step type seal combination, sufficiently sealed rear end cap and oil cylinder contact surface and the contact surface of rear end cap and punching set.Using more than structure, a variety of seal combination modes, multiple-protection are taken, it is ensured that hydraulic oil will not leak, and ensure oil pressure, it is ensured that the working performance of jack, while pre- leakage-preventing hydraulic oil extends its service life to the erosion damage of jack other component.
Description
Technical field
The invention belongs to Hydraulic for lifting load machinery technical fields, and in particular to a kind of multigroup sealed double guiding jack of conjunction.
Background technology
Jack is lockup device common in industrial processes or machine-building, and the sealing performance of seal member is straight
It connects and is related to whether jack can work normally.The jacking and off-load of usual jack are upper and lower in oil cylinder inner wall by piston
Mobile to complete, piston promotes piston rod to rise load, piston retraction then drives piston rod to shrink, so as to off-load, piston and
Generally use dynamic sealing between oil cylinder, thus it is more demanding to the sealing performance of sealing element, but existing hydraulic jack piston
Only with the sealing element of single type between oil cylinder, dynamic sealing performance is relatively poor, and abrasion resistance properties are poor, uses for a long time
Afterwards, sealing element can then deform, and be not tight seal, and jack is caused often to be present with hydraulic oil leakage, influence the feelings of hydraulic pressure
There is seal failure in condition, after long-time use so as to shorten the service life of jack.
The content of the invention
For solution more than technical problem, reach and fully ensure that sealing performance, extend jack service life, the present invention provides
A kind of double guiding jack of more combined sealings.
To achieve the above object, technical scheme is as follows：
A kind of multigroup sealed double guiding jack of conjunction, are characterized by, described including oil cylinder, piston component, punching set
Oil cylinder one end is equipped with rear end cap, and the punching set is mounted in the piston hole in the piston component, the piston component bag
Piston head and piston rod are included, the piston rod has concave step close to rear end cap one end, and the step is equipped with external screw thread,
There is the protrusion being adapted with the step, which is equipped with the interior spiral shell being adapted with the external screw thread on the piston head
Line, the step are longer than protrusion, and described project through is threaded on the step, the one side of the protrusion away from rear end cap
It is close to the side wall of step；
The outer wall that the piston head is contacted with oil cylinder is set there are two guidance tape, the piston head between two guidance tapes
It is set on outer wall there are two A grooves, the stepped seal combination in hole is installed in the A grooves close to rear end cap one side, in another A
Hole is installed to be combined with quad seal in groove；
The piston rod is set close to rear end cap one end there are two B grooves with punching set contact surface, is pacified in the B grooves
It is combined equipped with axis with quad seal, the rear end cap inner wall outer wall is all equipped with C grooves, and being equipped with axis in the C grooves uses rank
Ladder type seal combination；
The end of the oil cylinder other end is equipped with drive end bearing bracket, and the drive end bearing bracket is preceding between the oil cylinder and piston rod
Also using axis step type seal combination between end cap and piston rod.
Using more than structure, combined between two guidance tapes using hole with stepped seal combination and hole with quad seal
Two kinds of seal combination modes effectively prevent hydraulic oil from being leaked from piston head and cylinder wall contact position, between piston rod and punching set
Effectively prevent hydraulic oil from being leaked along punching jacket wall using the combination of axis quad seal, rear end cap inside and outside wall is stepped close using axis
Envelope combination, effectively prevents hydraulic oil from being leaked from rear end cap and oil cylinder contact wall, the same according to each component endurance portion, takes a variety of
Seal combination mode, multiple-protection, it is ensured that hydraulic oil will not leak, and ensure oil pressure, it is ensured that the working performance of jack is prolonged
Its long service life.
As preferred：The opposite side of the protrusion is equipped with round nut, and the round nut is set in the step close to rear end
On the external screw thread of lid.Using more than structure, protrusion is further fastened toward the sidewall extrusion of step, ensures to live by round nut
Chock plug will not loosen during the motion.
As preferred：Inner wall of the piston head close to drive end bearing bracket one side is equipped with B grooves, is also installed in the B grooves
There is axis to be combined with quad seal.Using more than structure, effectively prevent hydraulic oil and leaked along piston head and plunger rod contacts wall.
As preferred：Two guidance tapes are tetrafluoro bronze guidance tape.Using more than structure, increase the wear-resisting of guidance tape
Resistance to pressure, to prevent piston head from scratching inside oil cylinder.
As preferred：The end of the drive end bearing bracket and the described one end of plunger rod contacts face away from rear end cap be equipped with J-type without
Bone dustband.Using more than structure, prevent external dust from the entrance of the outer end of drive end bearing bracket and plunger rod contacts or piston rod
Dust adhesion enters on piston rod wall in piston hole during contraction.
As preferred：The drive end bearing bracket is equipped with D grooves with plunger rod contacts inner wall close to one end of rear end cap, and the D is recessed
Solid lubrication copper sheathing is arranged in slot.Using more than structure, piston rod all contacts in contraction process with solid lubrication copper sheathing, can
Effective lubricating action is played to piston rod, keeps piston rod surface smooth, is more advantageous to the contraction of piston rod.
As preferred：It is connected between the drive end bearing bracket and oil cylinder using thread fitting.It, will than traditional using more than structure
Drive end bearing bracket is fastened on oil cylinder end wall by screw and is more convenient.
Compared with prior art, the beneficial effects of the invention are as follows：
It is provided by the invention it is multigroup close sealed double guiding jack, sealed between two guidance tapes using hole with stepped
Two kinds of seal combination modes are combined in combination and hole with quad seal, effectively prevent hydraulic oil from piston head and oil cylinder inner wall contact position
Leakage, piston rod is combined between being covered with punching using axis with quad seal effectively prevents hydraulic oil from being leaked along punching jacket wall, rear end
Lid inside and outside wall effectively prevents hydraulic oil from being leaked from rear end cap and oil cylinder contact wall, according to each using axis step type seal combination
Component endurance portion is the same, takes a variety of seal combination modes, multiple-protection, it is ensured that hydraulic oil will not leak, and ensure oil
Pressure, it is ensured that the working performance of jack, while pre- leakage-preventing hydraulic oil extends it to the erosion damage of jack other component
Service life.
Description of the drawings
Fig. 1 is the sectional view of one embodiment of the invention；
Fig. 2 is partial enlarged view at A in Fig. 1.
Specific embodiment
The present invention is described in further detail in the following with reference to the drawings and specific embodiments.
With reference to multigroup sealed double guiding jack of conjunction shown in FIG. 1, including oil cylinder 1, piston component 2, punching set 3, institute
It states 1 one end of oil cylinder and rear end cap 11 is installed, the punching set 3 is mounted in the piston hole 22 in the piston component 2, the work
Plug assembly 2 includes piston head 20 and piston rod 21, and the piston rod 21 has concave step 211 close to 11 one end of rear end cap,
The step 211 is equipped with external screw thread, has the protrusion 201 being adapted with the step 211, the protrusion on the piston head 20
201 are equipped with the internal thread being adapted with the external screw thread, and the step 211 is longer than protrusion 201, and described raised 201 pass through spiral shell
Line is connected on the step 211, and the side wall of step 211, the protrusion are close in raised 201 one side away from rear end cap 11
201 opposite side is equipped with round nut 23, and the round nut 23 is set in the step 211 on the external screw thread of rear end cap 11,
The end of 1 other end of oil cylinder is equipped with drive end bearing bracket 12, is connected between drive end bearing bracket 12 and oil cylinder 1 using thread fitting, the drive end bearing bracket
12 between the oil cylinder 1 and piston rod 21, also using axis step type seal combination between drive end bearing bracket 12 and piston rod 12
63。
Piston head 20 sets the guidance tape 4 there are two tetrafluoro bronze material with the outer wall that oil cylinder 1 contacts, in two guiding
With being set on 20 outer wall of piston head between 4 there are two A grooves, being equipped with hole in the A grooves close to 11 one side of rear end cap uses rank
Stepped sealing ring that is, first in the groove equipped with " Ο " shape sealing ring, is being embedded in groove by ladder type seal combination 60 again,
Hole quad seal combination 61 is installed in another A grooves, i.e., first in the groove equipped with " Ο " shape sealing ring, then will be square close
Seal is embedded in the groove.The sealing performance between piston head and cylinder wall can be greatly enhanced using two groups of seal combination modes.
Piston rod 21 covers 3 contact surfaces with the punching and is set close to 11 one end of rear end cap there are two B grooves, in the B grooves
Axis quad seal combination 62 is installed, inner wall of the piston head 20 close to 12 one side of drive end bearing bracket is equipped with B grooves, in the B grooves
Axis quad seal combination 62 is inside also installed, the 11 inner wall outer wall of rear end cap is all equipped with C grooves, is installed in its C groove
There is the stepped seal combination 63 of axis.
Drive end bearing bracket 12 and the end of the described one end of 21 contact surface of piston rod away from rear end cap 11 are equipped with J-type bone free dustband
7, the drive end bearing bracket 12 contacts inner wall with piston rod 21 and is equipped with D grooves 120 close to one end of rear end cap 11, in the D grooves 120
It is arranged with solid lubrication copper sheathing 121.
The course of work of the present invention is as follows：
Hydraulic oil enters from close to the oil inlet 13 of 11 one end of rear end cap inside oil cylinder 1, promotes piston head 20 in oil cylinder 1
It is moved along, and piston head 20 is connected with piston rod 21, so as to which 21 ejection cylinder 1 of piston rod be driven to play the work of lifting load
With when needing to lay down load, the oil outlet 14 that will be close to drive end bearing bracket 12 is opened, and high pressure oil outflow, pressure disappears, piston rod 21
It then slowly withdraws inside oil cylinder 1, in 21 telescopic process of piston rod, by hole with stepped seal combination 60 and hole with square close
Envelope combination 61 is effective to prevent hydraulic oil from being leaked along piston head 20 and 1 contact wall of oil cylinder, and rear end cap is by axis step type sealing group
Closing 63 prevents hydraulic oil from being leaked along the inside and outside wall of rear end cap, is combined between piston rod 21 and punching set 3 using axis with quad seal
62 prevent hydraulic oil from covering 3 outer wall spill and leakages along punching, take multi-sealed combination, and effective sealing fluid pressure oil reduces spill and leakage, protects
Oil pressure is demonstrate,proved, so as to ensure the working performance of jack, the opposite service life for extending jack.
Finally it should be noted that foregoing description is merely a preferred embodiment of the present invention, those of ordinary skill in the art
Under the enlightenment of the present invention, on the premise of without prejudice to present inventive concept and claim, expression as multiple types can be made, this
The conversion of sample is each fallen within protection scope of the present invention.
Claims (7)
1. a kind of multigroup sealed double guiding jack of conjunction, it is characterised in that：Including oil cylinder (1), piston component (2), punching set
(3), described oil cylinder (1) one end is equipped with rear end cap (11), and the punching set (3) is mounted on the work in the piston component (2)
In consent (22), the piston component (2) includes piston head (20) and piston rod (21), and the piston rod (21) is close to rear end cap
(11) one end has concave step (211), and the step (211) is equipped with external screw thread, have on the piston head (20) with
The adaptable protrusion (201) of the step (211), the protrusion (201) are equipped with the internal thread being adapted with the external screw thread, institute
It is longer than raised (201) to state step (211), the protrusion (201) is threadedly attached on the step (211), the protrusion
(201) side wall of step (211) is close in the one side away from rear end cap (11)；
The piston head (20) and the outer wall that oil cylinder (1) contacts are set there are two guidance tape (4), two guidance tapes (4) it
Between piston head (20) outer wall on set there are two A grooves, hole ladder is installed in the A grooves close to rear end cap (11) one side
Type seal combination (60), in another A grooves be equipped with hole is combined (61) with quad seal；
The piston rod (21) is set close to rear end cap (11) one end there are two B grooves, in the B with punching set (3) contact surface
Axis is installed to be combined (62) with quad seal in groove, rear end cap (11) the inner wall outer wall is all equipped with C grooves, recessed in the C
Axis stepped seal combination (63) is installed in slot；
The end of oil cylinder (1) other end is equipped with drive end bearing bracket (12), and the drive end bearing bracket (12) is located at the oil cylinder (1) and piston
Between bar (21), also using axis step type seal combination (63) between the drive end bearing bracket (12) and piston rod (12).
2. multigroup sealed double guiding jack of conjunction according to claim 1, it is characterised in that：The protrusion (201)
Opposite side is equipped with round nut (23), and the round nut (23) is set in external screw thread of the step (211) close to rear end cap (11)
On.
3. multigroup sealed double guiding jack of conjunction according to claim 1, it is characterised in that：The piston head (20) is leaned on
Nearby the inner wall of end cap (12) one side is equipped with B grooves, and be also equipped with axis in the B grooves is combined (62) with quad seal.
4. multigroup sealed double guiding jack of conjunction according to claim 1, it is characterised in that：Two guidance tapes
(4) it is tetrafluoro bronze guidance tape.
5. multigroup sealed double guiding jack of conjunction according to claim 1, it is characterised in that：The drive end bearing bracket (12) with
The end of the described one end of piston rod (21) contact surface away from rear end cap (11) is equipped with J-type bone free dustband (7).
6. multigroup sealed double guiding jack of conjunction according to claim 1, it is characterised in that：The drive end bearing bracket (12) with
Piston rod (21) contacts inner wall and is equipped with D grooves (120) close to one end of rear end cap (11), is arranged in the D grooves (120) solid
Body lubrication copper sheathing (121).
7. multigroup sealed double guiding jack of conjunction according to claim 1, it is characterised in that：The drive end bearing bracket (12) with
It is connected between oil cylinder (1) using thread fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611061824.5A CN108100918A (en) | 2016-11-25 | 2016-11-25 | It is multigroup to close sealed double guiding jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611061824.5A CN108100918A (en) | 2016-11-25 | 2016-11-25 | It is multigroup to close sealed double guiding jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108100918A true CN108100918A (en) | 2018-06-01 |
Family
ID=62205447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611061824.5A Pending CN108100918A (en) | 2016-11-25 | 2016-11-25 | It is multigroup to close sealed double guiding jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108100918A (en) |
-
2016
- 2016-11-25 CN CN201611061824.5A patent/CN108100918A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180601 |
|
| WD01 | Invention patent application deemed withdrawn after publication |