CN104310266A - Novel hydraulic claw jack - Google Patents
Novel hydraulic claw jack Download PDFInfo
- Publication number
- CN104310266A CN104310266A CN201410661487.8A CN201410661487A CN104310266A CN 104310266 A CN104310266 A CN 104310266A CN 201410661487 A CN201410661487 A CN 201410661487A CN 104310266 A CN104310266 A CN 104310266A
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- CN
- China
- Prior art keywords
- novel hydraulic
- jack
- base plate
- piston rod
- ring
- 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.)
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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
- B66F3/42—Constructional features with self-contained pumps, e.g. actuated by hand
-
- 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
- B66F3/28—Adaptations or arrangements of pistons telescopic
-
- 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
- B66F3/36—Load-engaging elements
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Actuator (AREA)
Abstract
The invention relates to a novel hydraulic claw jack and belongs to the technical field of hydraulic lifting tools. The novel hydraulic claw jack includes a base plate. A small oil pump assembly, an outer cylinder and an inner cylinder are fixedly arranged on the base plate. A rocking mechanism is arranged on the small oil pump assembly. An oil drain valve is arranged between the outer cylinder and the inner cylinder. A main piston rod is arranged in the inner cylinder in a matched mode and provided with a lifting claw in a matched mode. Between the inner wall of the inner cylinder and the main piston rod, a first hole check ring, a first seal ring, a second hole check ring, a first abrasion-resistant ring, a bush with an annular hole, a second seal ring and a second abrasion-resistant ring are fixedly arranged sequentially from top to bottom. The annular hole in the bush with the annular hole is communicated with an overflow hole formed in the inner cylinder. The novel hydraulic claw jack is easy to manufacture, high in safe reliability, durable, convenient to use, wide in application range and the like. Especially, the service life of the novel hydraulic claw jack is super long, and actual measurement shows that the service life of the jack is several times or even dozens of times that of existing similar products. Accordingly, the jack is a revolutionary major technological breakthrough and solves long-standing problems.
Description
Technical field
The invention belongs to hydraulic pulling tool technical field, be specifically related to a kind of novel hydraulic claw jack.
Background technology
In existing hydraulic pulling tool, have a kind of heavy lift instrument being hydraulic gripper jack, what also have is called hydraulic track jack.This product carries out change with reference to conventional common vertical hydraulic jack to strengthen, and installs the hook that is similar to zigzag additional.When lifting jack time, subsidiary hook catches on weight, and such weight can be elevated.Be with common common vertical hydraulic jack main difference part, what common upright jack main piston rod bore is positive pressure, and the main piston rod of hydraulic gripper jack should bear positive pressure and will bear side force simultaneously.
Existing hydraulic gripper jack has two kinds substantially.Be the principle with reference to common upright jack, there are seal ring and carrier bar in main piston rod lower end, and seal ring and carrier bar slide on interior casing wall; There are seal ring and carrier bar in inner casing upper end.Such main piston rod lower end and inner casing upper end (end) are combined and are born side force.This kind of shortcoming is that interior casing wall needs detailed manufacture, and oil piping system cleanliness level requires very high, and manufacture is complicated and cost is high, and inner casing easily weares and teares and causes unrepairable and scrap, and service life is limited.Another is that inner casing middle and lower part has space (not contacting) with main piston rod, inner casing middle and upper part (middle-end and upper end) detailed manufacture, and inner casing upper end processing series of channels places seal ring.Inner casing middle and upper part and piston rod is relied on to be used for bearing side force.This kind of shortcoming is inner casing and piston rod friction, and general inner casing material is not wear-resisting, and inner casing and piston rod are easy to wearing and tearing and are out of order, and reliability and service life are very low.Will process above main piston rod and tinyly unload oilhole, main piston rod material is harder, processes more difficult.Existing hydraulic gripper jack claw main body has three kinds of manufacturing process.One is casting; One is that a few block plate is welded; One is that key position (pawl hypomere) forges and then adds other Plate Weldings and form.These three kinds of claw main bodys all come with some shortcomings.Casting pawl, the steel and iron parts possibility existing defects of well-known casting, thus cause dangerous; Welding pawl, may there is weld defect in crucial force part, manufacturing cost is also high; Then key position forges that welding assembly manufacturing cost is high.Existing base claw (foot) is parallel linear pattern relative to inside groove, and bottom, small oil tank position plate is linear pattern.From unreasonable mechanics and aesthstic angle.
Summary of the invention
For prior art Problems existing, the object of the invention is to design the technical scheme that a kind of novel hydraulic claw jack is provided.
Described a kind of novel hydraulic claw jack, comprise base plate, described base plate is fixedly installed little oil pump assembly, outer shell and inner casing, described little oil pump assembly arranges head motion, between described outer shell and inner casing, oil cock is set, main piston rod is equipped with in described inner casing, described main piston rod is equipped with lifting pawl, it is characterized in that being fixedly installed the first hole back-up ring from top to bottom successively between the described interior inside wall of cylinder and main piston rod, first seal ring, second hole back-up ring, first flow ring, band annular distance lining, second seal ring and the second flow ring, annular distance in described band annular distance lining communicates with the overflow weir that inner casing is arranged.
Described a kind of novel hydraulic claw jack, is characterized in that described base plate both sides are provided with base plate reinforced rib.
Described a kind of novel hydraulic claw jack, it is characterized in that the both sides arranging little oil pump assembly end in described base plate are curvilinear structures, is oblique line structure outside the claw of described base plate.
Described a kind of novel hydraulic claw jack, it is characterized in that described lifting pawl is the integrated Z-type structure of the disposable cutting of steel plate, described lifting pawl both sides are provided with pawl reinforced rib, described lifting pawl and main piston rod junction are provided with locating bush, described lifting pawl upper end is provided with extension spring hook, and the tension spring that described upper extension spring hook and base plate are arranged is provided with extension spring between linking up with.
Described a kind of novel hydraulic claw jack, is characterized in that described outer shell is fixedly installed carrying guide plate with the lifting relative side of pawl.
Described a kind of novel hydraulic claw jack, is characterized in that described outer shell being provided with handle and filler plug.
Described a kind of novel hydraulic claw jack, is characterized in that described main piston rod lower end wall is provided with oil unloading trough.
Described a kind of novel hydraulic claw jack, is fixedly installed the overflow buffering ring of evagination below the overflow weir that it is characterized in that described inner casing.
Described a kind of novel hydraulic claw jack, is characterized in that being equipped with rocking bar in described head motion.
It is simple that above-mentioned a kind of novel hydraulic claw jack has structure, the features such as easy to manufacture, safe reliability is high, durable in use, easy to use, applied widely.Particularly service life overlength, through actual measurement, described jack is several times or even tens times of existing like product service life.Real is revolutionary major technological breakthrough, solves long-standing puzzles.First hole back-up ring, the first seal ring, the second hole back-up ring, the first flow ring, band annular distance lining, the second seal ring and the second flow ring are set between the interior inside wall of cylinder and main piston rod, while playing sealing effectiveness, main piston rod and flow ring wear and tear hardly, and inner casing does not participate in wearing and tearing.Thus improve reliability and the service life of product.Be fixedly installed overflow buffering ring below the overflow weir of inner casing, overflow makes to play buffer action, strengthens inner casing rigid, improves stability in use; Main piston rod lower end wall is provided with oil unloading trough, while ensureing oil draining function, reduces difficulty of processing; Promote pawl and adopt the integrated Z-type structure of the disposable cutting of steel plate, promote pawl surface and be provided with reinforced rib, reduce difficulty of processing and tooling cost, improve safety; The both sides arranging little oil pump assembly end in base plate are curvilinear structures, are oblique line structure, make base plate more stable, meet mechanics and aesthetic requirement outside the claw of base plate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is side-looking structural representation of the present invention;
Fig. 3 is part sectional view of the present invention;
Fig. 4 is the structure schematic diagram of lifting pawl body junction of the present invention;
Fig. 5 is the structural representation promoting pawl in the present invention;
Fig. 6 is the side-looking structural representation promoting pawl in the present invention.
In figure: 1-base plate; 101-curvilinear structures; 102-oblique line structure; 2-oil cock; The little oil pump assembly of 3-; 4-outer shell; 5-carries guide plate; 6-promotes pawl; 7-inner casing; 8-first hole back-up ring; 9-first seal ring; 10-second hole back-up ring; 11-first flow ring; 12-is with annular distance lining; 13-second seal ring; 14-second flow ring; 15-overflow buffering ring; 16-overflow weir; 17-annular distance; 18-main piston rod; 19-oil unloading trough; 20-shakes structure; 21-filler plug; 22-shakes hands; 23-locating bush; 24-pawl reinforced rib; 25-extension spring; The upper extension spring hook of 26-; 27-base plate reinforced rib; 28-tension spring is linked up with; 29-rocking bar; 30-overloads limiting valve; A-first oilhole; B-second oilhole; C-second is with steel ball valve hole; D-the 4th oilhole; E-first is with steel ball valve hole; F-the 3rd oilhole.
Detailed description of the invention
The present invention is further illustrated below in conjunction with Figure of description.
As shown in the figure, a kind of novel hydraulic claw jack comprises base plate 1, base plate 1 is fixedly installed little oil pump assembly 3, outer shell 4 and inner casing 7.Little oil pump assembly 3 arranges head motion 20, in head motion 20, is equipped with rocking bar 29, for controlling the oil circuit in little oil pump assembly 3.Oil cock 2 is set between outer shell 4 and inner casing 7, for controlling the oil circuit in outer shell 4 and inner casing 7.Overload limiting valve 30 is provided with in little oil pump assembly 3.Be equipped with main piston rod 18 in inner casing 7, main piston rod 18 be equipped with and promote pawl 6.
Base plate 1 both sides are provided with base plate reinforced rib 27, improve the intensity of base plate 1.The both sides that base plate 1 arranges little oil pump assembly 3 end are curvilinear structures 101, are oblique line structure 102 outside the claw of base plate 1.Base plate 1 adopts curvilinear structures 101 and oblique line structure 102, more meets mechanics and aesthetic requirement.Promoting pawl 6 is the integrated Z-type structure of the disposable cutting of steel plate, promotes pawl 6 both sides and is provided with pawl reinforced rib 24, reduce difficulty of processing and tooling cost, improve safety.Promote pawl 6 and be provided with locating bush 23 with main piston rod 18 junction, realize promoting pawl 6 and be connected with the firm of main piston rod 18.Promote pawl 6 upper end and be provided with extension spring hook 26, the tension spring that upper extension spring hook 26 and base plate 1 are arranged is provided with extension spring 25 between linking up with 28.
Be fixedly installed the first hole back-up ring 8, first seal ring 9, second hole back-up ring 10, first flow ring 11, band annular distance lining 12, second seal ring 13 and flow ring 14 between inner casing 7 inwall and main piston rod 18 from top to bottom successively, the annular distance 17 in band annular distance lining 12 communicates with the overflow weir 16 that inner casing 7 is arranged.The setting of the first hole back-up ring 8, first seal ring 9, second hole back-up ring 10, first flow ring 11, band annular distance lining 12, second seal ring 13 and flow ring 14, while playing sealing effectiveness, improve the resistance to abrasion of main piston rod, and inner casing is without wearing and tearing, improve the safety of claw, thus improve reliability and the service life of product.
Main piston rod 18 lower end wall is provided with oil unloading trough 19, while ensureing oil draining function, reduces difficulty of processing.Below the overflow weir 16 of inner casing 7, specifically the second flow ring 14 place is fixedly installed the overflow buffering ring 15 of evagination, plays buffer action during overflow, strengthens inner casing strength rigid, improves stability in use.
Outer shell 4 is fixedly installed with the lifting relative side of pawl 6 and carries guide plate 5, and carrying guide plate 5 plays the effect that carrying promotes pawl 6.Outer shell 4 is provided with handle 22 and filler plug 21.
Novel hydraulic claw jack is with reference to common vertical hydraulic jack principle.Oil cock 2 on locking base plate 1, the hole that the first oilhole A then in inner casing 7 is connected with the second oilhole B in outer shell 4 is blocked, rocking bar 29 inserts in head motion 20 and shakes, the vacuum that valve piston motion in small oil tank assembly 3 is formed makes the hydraulic oil stored between outer shell 4 and inner casing 7 enter in small oil tank by the 3rd oilhole F and first band steel ball valve hole E, and then passing hole the 4th oilhole D and second band steel ball valve hole C enters in inner casing 7.Hydraulic oil promotes main piston rod 18 and rises, and crosses the second seal ring 13 place start emptying when the overflow groove 19 on main piston rod 18, and oil is overflowed by the overflow weir 16 of band annular distance lining 12 and inner casing 7, and main piston rod 18 stops not rising.Main piston rod 18 rises, promote pawl 6 also synchronously rise, main piston rod 18 stop not rising then promote pawl 6 also slack.Realize the function promoting pawl 6 lifting heavy thus.Need lifting pawl 6 and main piston rod 18 to decline, just unclamp oil cock 2, the oil in inner casing 7 enters the space between inner casing 7 and outer shell 4 by the first oilhole A and the second oilhole B, and main piston rod 18 declines.Inner casing 7 main piston rod 18 of getting along well directly contacts, and is contacted with main piston rod 18 by the first flow ring 11, second flow ring 14, thus improves resistance to abrasion.
Shown in the above and figure is only the preferred embodiment of the present invention.It should be pointed out that for the person of ordinary skill of the art, under the premise without departing from the principles of the invention, can also make some modification and improvement, these also should be considered as belonging to protection scope of the present invention.
Claims (9)
1. a novel hydraulic claw jack, comprise base plate (1), described base plate (1) is fixedly installed little oil pump assembly (3), outer shell (4) and inner casing (7), described little oil pump assembly (3) arranges head motion (20), between described outer shell (4) and inner casing (7), oil cock (2) is set, main piston rod (18) is equipped with in described inner casing (7), described main piston rod (18) is equipped with and promotes pawl (6), it is characterized in that being fixedly installed the first hole back-up ring (8) from top to bottom successively between described inner casing (7) inwall and main piston rod (18), first seal ring (9), second hole is with back-up ring (10), first flow ring (11), band annular distance lining (12), second seal ring (13) and the second flow ring (14), annular distance (17) in described band annular distance lining (12) communicates with the upper overflow weir (16) arranged of inner casing (7).
2. a kind of novel hydraulic claw jack as claimed in claim 1, is characterized in that described base plate (1) both sides are provided with base plate reinforced rib (27).
3. a kind of novel hydraulic claw jack as claimed in claim 1, it is characterized in that arranging in described base plate (1) both sides that little oil pump assembly (3) holds is curvilinear structures (101), is oblique line structure (102) outside the claw of described base plate (1).
4. a kind of novel hydraulic claw jack as claimed in claim 1, it is characterized in that described lifting pawl (6) is for the integrated Z-type structure of the disposable cutting of steel plate, described lifting pawl (6) both sides are provided with pawl reinforced rib (24), described lifting pawl (6) and main piston rod (18) junction are provided with locating bush (23), described lifting pawl (6) upper end is provided with extension spring hook (26), and described upper extension spring hook (26) and the upper tension spring arranged of base plate (1) are linked up with between (28) and be provided with extension spring (25).
5. a kind of novel hydraulic claw jack as claimed in claim 1, is characterized in that described outer shell (4) is fixedly installed with lifting pawl (6) relative side and carries guide plate (5).
6. a kind of novel hydraulic claw jack as claimed in claim 1, is characterized in that described outer shell (4) is provided with handle (22) and filler plug (21).
7. a kind of novel hydraulic claw jack as claimed in claim 1, is characterized in that described main piston rod (18) lower end wall is provided with oil unloading trough (19).
8. a kind of novel hydraulic claw jack as claimed in claim 1, is characterized in that overflow weir (16) below of described inner casing (7) is fixedly installed the overflow buffering ring (15) of evagination.
9. a kind of novel hydraulic claw jack as claimed in claim 1, is characterized in that being equipped with rocking bar (29) in described head motion (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410661487.8A CN104310266B (en) | 2014-11-19 | 2014-11-19 | A kind of novel hydraulic claw jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410661487.8A CN104310266B (en) | 2014-11-19 | 2014-11-19 | A kind of novel hydraulic claw jack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104310266A true CN104310266A (en) | 2015-01-28 |
| CN104310266B CN104310266B (en) | 2017-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410661487.8A Active CN104310266B (en) | 2014-11-19 | 2014-11-19 | A kind of novel hydraulic claw jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104310266B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105291044A (en) * | 2015-10-30 | 2016-02-03 | 常州南车铁马科技实业有限公司 | Replacing method for motor train unit braking clamp brake pad and replacing tool for brake pad |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2064764U (en) * | 1990-04-13 | 1990-10-31 | 刘大罡 | Multifunctional hydraulic jack |
| CN2083580U (en) * | 1991-03-20 | 1991-08-28 | 北京市密云县汽车千斤顶厂 | Twe-stage hydraulic jack |
| CN201198446Y (en) * | 2008-04-18 | 2009-02-25 | 江晓星 | Claw type jack |
| CN201338926Y (en) * | 2009-01-09 | 2009-11-04 | 俞政 | Piston unloading fingernail-type hoisting jack |
| DE102010015115A1 (en) * | 2010-04-16 | 2011-10-20 | Georg Kramp Gmbh & Co. Kg | Mobile lifter with electro-hydraulic drive |
| CN202785462U (en) * | 2012-09-21 | 2013-03-13 | 上海深港起重工具有限公司 | Hydraulic jack |
| CN204310764U (en) * | 2014-11-19 | 2015-05-06 | 杭州富阳泳富机械有限公司 | A kind of novel hydraulic claw jack |
-
2014
- 2014-11-19 CN CN201410661487.8A patent/CN104310266B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2064764U (en) * | 1990-04-13 | 1990-10-31 | 刘大罡 | Multifunctional hydraulic jack |
| CN2083580U (en) * | 1991-03-20 | 1991-08-28 | 北京市密云县汽车千斤顶厂 | Twe-stage hydraulic jack |
| CN201198446Y (en) * | 2008-04-18 | 2009-02-25 | 江晓星 | Claw type jack |
| CN201338926Y (en) * | 2009-01-09 | 2009-11-04 | 俞政 | Piston unloading fingernail-type hoisting jack |
| DE102010015115A1 (en) * | 2010-04-16 | 2011-10-20 | Georg Kramp Gmbh & Co. Kg | Mobile lifter with electro-hydraulic drive |
| CN202785462U (en) * | 2012-09-21 | 2013-03-13 | 上海深港起重工具有限公司 | Hydraulic jack |
| CN204310764U (en) * | 2014-11-19 | 2015-05-06 | 杭州富阳泳富机械有限公司 | A kind of novel hydraulic claw jack |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105291044A (en) * | 2015-10-30 | 2016-02-03 | 常州南车铁马科技实业有限公司 | Replacing method for motor train unit braking clamp brake pad and replacing tool for brake pad |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104310266B (en) | 2017-07-14 |
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