CN100596323C - Support cylinder as well as support means and crane having the same - Google Patents
Support cylinder as well as support means and crane having the same Download PDFInfo
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- CN100596323C CN100596323C CN200810005995A CN200810005995A CN100596323C CN 100596323 C CN100596323 C CN 100596323C CN 200810005995 A CN200810005995 A CN 200810005995A CN 200810005995 A CN200810005995 A CN 200810005995A CN 100596323 C CN100596323 C CN 100596323C
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- support cylinder
- oilhole
- support
- oil hole
- cylinder
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Abstract
The invention discloses a support cylinder used for supporting an outrigger of a crane. The support cylinder is provided with a hollow cavity which is matched with a cylinder rod; the upper wall of the support cylinder is provided with a first oil hole leading to a stockless cavity of the support cylinder; the cylinder wall of the support cylinder is provided with a second oil hole leading to a stocked cavity of the support cylinder; the second oil hole comprises a first longitudinal oil hole and a first transverse oil hole on the upper wall of the support cylinder as well as a second longitudinal oil hole and a second transverse oil hole on the lateral wall of the support cylinder; the first longitudinal oil hole, the first transverse oil hole, the second longitudinal oil hole and the second transverse oil hole are communicated in sequence; the first longitudinal oil hole leads to the outside of the support cylinder; the second transverse oil hole is communicated with the stocked cavity of the support cylinder. The oil hole is arranged inside the cylinder wall of the support cylinder without arranging a hydraulic oil tube outside the support cylinder, thereby avoiding the damage of the oil tube caused by the crash of a weight to the hydraulic oil tube and leading the retraction of the cylinder rod, thereby having good safety performance.
Description
Technical field
The present invention relates to a kind of support cylinder, relate in particular to a kind of support cylinder that is used on the hoist.The present invention also relates to a kind of hoist with above-mentioned support cylinder simultaneously.
Background technique
The hoist of prior art, as railway breakdown crane, the support when all adopting support device realization work, and then the support strength of hoist when increasing work avoid working load excessive and cause hoist to overturn.
Railway breakdown crane travels along the railway track, and is mainly used in that railway locomotive is overturned, the stand-by service of derailment accident, also have concurrently simultaneously lay a railway track, the purposes such as loading and unloading of bridge formation and heavy goods.
Railway breakdown crane is in when work, bears railway breakdown crane and the weight of the object sling by support cylinder and supporting leg.Support cylinder need connect the oil pipe of hydraulic circuit, by inserting oil pipe to the support cylinder fuel feeding in the support cylinder outside.
Normal conditions, the sidewall of support cylinder have two hydraulic fluid ports, are specially rod chamber hydraulic fluid port and rodless cavity hydraulic fluid port.The rod chamber hydraulic fluid port is positioned at the sidewall of support cylinder near the support cylinder opening end, and this hydraulic fluid port leads to the rod chamber of support cylinder; The rodless cavity hydraulic fluid port is positioned at close support cylinder top on the support cylinder sidewall, and this hydraulic fluid port is communicated with the rodless cavity of support cylinder, and the rod chamber hydraulic fluid port is connected with two hydraulic fluid ports of hydraulic lock by outside oil pipe respectively with the rodless cavity hydraulic fluid port.
In actual applications, because the oil pipe that is connected with the support cylinder oilhole exposes the outside at support cylinder, when crane job, the weight of slinging is easy to run into exposed oil pipe externally, cause the hydraulic circuit leakage of oil, cause the piston rod of support cylinder to shrink, and then cause hoist generation overthrow accident, thereby the poor safety performance of this support cylinder.
In addition, the hydraulic lock at support cylinder top hides by easy protective housing, is damaged by the weight bump easily, can cause the oil circuit leakage of oil, thereby poor safety performance.
Summary of the invention
At the problems referred to above, the technical problem that the present invention solves is, a kind of support cylinder is provided, and has good Safety performance.
Support cylinder provided by the invention, be used to support the supporting leg of heavy-duty machine, this support cylinder has the cavity that cooperates with piston rod, the upper wall of described support cylinder is offered first oilhole that leads to the support cylinder rodless cavity, the casing wall of described support cylinder is offered an end and is led to the support cylinder rod chamber, and an end leads to second oilhole of the upper wall outer surface of support cylinder.
Preferably, described second oilhole specifically comprises: the second vertical oilhole of the first vertical oilhole of support cylinder upper wall and the first horizontal oilhole, support cylinder sidewall and the second horizontal oilhole; Described first vertical oilhole, the first horizontal oilhole, second vertical oilhole and the second horizontal oilhole are communicated with successively, and described first vertical oilhole leads to the outside of described support cylinder, and the described second horizontal oilhole is communicated with described support cylinder rod chamber.
Preferably, described support cylinder top has the groove that is used to place hydraulic lock, and described first oilhole and second oilhole are communicated with the oilhole of hydraulic lock.
Preferably, the sidewall of described groove has an opening, and the top of described groove has end cap, and this end cap is connected with the roof anchorage of support cylinder.
Preferably, described second oilhole specifically comprises vertical oilhole and the interior horizontal oilhole of support cylinder sidewall in the support cylinder sidewall, and described vertical oilhole and described horizontal oilhole are interconnected, and described horizontal oilhole is communicated with the rod chamber of support cylinder.
The present invention provides a kind of support device simultaneously, comprise support cylinder, the supporting leg of fixedlying connected with support cylinder and fixedly connected the support backing plate with the piston-rod lower end of support cylinder, described support cylinder is summary of the invention of the present invention and the described support cylinder of preferred embodiment.
The present invention provides a kind of hoist simultaneously, and this hoist is equipped with summary of the invention of the present invention and the described support cylinder of preferred embodiment.
Compare with the support cylinder of prior art, the support cylinder that the invention of this reality provides, its upper wall is offered first oilhole that leads to the support cylinder rodless cavity, casing wall is offered and is led to second oilhole that supports oily thick stick rod chamber, realize the hydraulic oil circuit of support cylinder by first oilhole and second oilhole, because oilhole is opened in the casing wall of support cylinder, need be at the disposed outside hydraulic oil pipe of support cylinder, thereby avoid weight to the bump of hydraulic oil pipe and damage oil pipe, cause the retraction of piston rod, thereby have good Safety performance.
In a preferred embodiment of the invention, support cylinder top has groove, hydraulic lock can be placed in the described groove, sets up an end cap on this groove top, thereby can avoid the bump of weight to hydraulic lock, has good Safety performance.
Description of drawings
Fig. 1 is the plan view of first kind of embodiment of support cylinder of the present invention;
Fig. 2 is the plan view of first kind of embodiment of support cylinder of the present invention;
Fig. 3 is the revolved sectional view along A-A Section line among Fig. 2;
Fig. 4 is the structural representation of second kind of embodiment of support cylinder of the present invention;
Fig. 5 is the revolved sectional view along B-B Section line among Fig. 4;
Fig. 6 is the structural representation of a kind of embodiment of support device of the present invention.
Embodiment
In order to make those skilled in the art better understand technological scheme of the present invention, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the plan view of first kind of embodiment of support cylinder of the present invention; Fig. 2 is the plan view of first kind of embodiment of support cylinder of the present invention.
As depicted in figs. 1 and 2, first support cylinder 1 that present embodiment provides has and piston rod 2 matched cylindrical cavitys, and described first support cylinder 1 also comprises the axle sleeve 3 that cooperates with piston rod 2, the oil cylinder cover 4 that is installed in support cylinder 1 opening end and card key 5.
The external frame of described first support cylinder 1 is rectangular structure (or cube structure), wherein has a boss that protrudes from described rectangular side plane 13 on the width direction on first support cylinder 1 rectangular side plane 13, this boss has the fluting towards first support cylinder, 1 top near the opening end of first support cylinder 1 on the described boss.
Described oil cylinder cover 4 is for having central through bore step cutting pattern structure, specifically comprise first step 41, second step 42 and the 3rd step 43, the width direction of the external diameter of first step 41 and described support cylinder 1 measure-alike, the internal diameter of the external diameter of second step 42 and the opening end of support cylinder 1 is identical and cooperatively interact.The external diameter of the diameter of the central through bore of oil cylinder cover 4 and piston rod 2 is identical and cooperatively interact, and the first seal ring (not shown) is installed on its fitting surface.Oil cylinder cover 4 is fixedlyed connected with the end face of the opening end of support cylinder 1 by bolt.
Described axle sleeve 3 is the cylindrical shroud barrel structure, the internal diameter of its external diameter and the cylindrical cavity of support cylinder 1 is identical and cooperatively interact, the external diameter of its internal diameter and piston rod 2 is identical and cooperatively interact, one end of axle sleeve 3 has boss, and the external diameter of this boss is greater than the internal diameter of the cylindrical cavity of described support cylinder 1.
The oil cylinder upper wall of support cylinder 1 is offered first oilhole 11 that leads to rodless cavity 14, and this first oilhole 11 is perpendicular to the upper wall of support cylinder 1.
The casing wall of support cylinder 1 is offered second oilhole that leads to rod chamber 15.
Please refer to Fig. 3, Fig. 3 is the sectional view along A-A Section line among Fig. 2.
As shown in Figure 3, described second oilhole specifically comprises, the axial location of contiguous support cylinder 1 and perpendicular to pars intramuralis on first vertical oilhole 12 of support cylinder 1 upper wall, the support cylinder 1 and be parallel to the first horizontal oilhole 13, support cylinder 1 interior of this upper wall and be parallel to second vertical oilhole 16 of this sidewall and support cylinder 1 interior and perpendicular to the second horizontal oilhole 17 of this sidewall.
As seen from Figure 3, the degree of depth of first vertical oilhole 12 is half of support cylinder 1 upper wall thickness, first vertical oilhole 12 is a blind hole, its lower end is communicated with an end of the first horizontal oilhole 13, the other end of the first horizontal oilhole 13 is communicated with the upper end of second vertical oilhole 16, the lower end of second vertical oilhole 16 is communicated with an end of the second horizontal oilhole 17, and the other end of the second horizontal oilhole 17 is communicated with the rod chamber 15 of support cylinder 1.
As seen, first vertical oilhole 12, second horizontal oilhole 13, the second vertical oilhole 16 and the second horizontal oilhole 17 have been connected to form second oilhole in proper order.
Specifically describe the course of working of second oilhole below:
The first step gets out first vertical oilhole 12, and the degree of depth of this first vertical oilhole 12 is roughly half of support cylinder 1 upper wall thickness.
Second step along the sidewall of support cylinder 1 position near the upper end of support cylinder, got out the first horizontal oilhole 13, and an end in the lateral oil hole 13 of winning is communicated with the end of first vertical oilhole 12.
In the 3rd step,, guarantee that second vertical oilhole 16 is communicated with the first horizontal oilhole 13 along the downward second vertical oilhole 16 that bores of the sidewall of support cylinder 1.
In the 4th step,, guarantee that the second horizontal oilhole 17 is communicated with the end of second vertical oilhole 16 along the support cylinder 1 Side wall drill second horizontal oilhole 17.
In the 5th step, first horizontal oilhole 13, second vertical oilhole 16 of processing and the second horizontal oilhole 17 end along the casing wall of support cylinder 1 is sealed, and then can realize processing second oilhole.
Support cylinder hydraulic work principle:
To the hydraulic lock fuel feeding, a hydraulic fluid port of hydraulic lock is connected with first oilhole 11 support cylinder 1 by oil pipe, and another hydraulic fluid port of hydraulic lock is connected with first vertical oilhole 12.
Hydraulic oil can enter in the rodless cavity 14 by first oilhole 11 that is communicated with the rodless cavity 14 of support cylinder 1.Same hydraulic oil can enter rod chamber 15 by second oilhole that is communicated with the rod chamber 15 of support cylinder 1, just by first vertical oilhole 12, enter in the rod chamber 15 through first horizontal oilhole 13, the second vertical oilhole 16 and the second horizontal oilhole 17 again, thereby can form the hydraulic oil control loop, by the flow direction and the flow velocity of control hydraulic oil, the moving direction of may command piston rod 2 and movement velocity.
The support cylinder 1 that present embodiment provides, by first oilhole 11 that is opened in its upper wall and the hydraulic oil circuit that is opened in second oilhole realization support cylinder on support cylinder 1 casing wall, because oilhole is opened in the casing wall of support cylinder 1, need be at the disposed outside hydraulic oil pipe of support cylinder 1, thereby can avoid weight to the bump of hydraulic oil pipe and damage oil pipe, cause the retraction of piston rod 2, thereby have good Safety performance.
Can further optimize the support cylinder that first embodiment of the invention provides.
As depicted in figs. 1 and 2, the top of support cylinder 1 has circular groove 18, has an opening 22 (shown in Figure 2) on the sidewall of this groove 18, described first oilhole 11 is connected with the oilhole of hydraulic lock with first vertical oilhole 12, this hydraulic lock places in the described groove 18, and oil pipe can stretch out with the hydraulic system oil circuit of support cylinder 1 by opening 22 and be communicated with.
The top of groove 18 has circular end cap 19, and this end cap 19 is fixedlyed connected by bolt 20 with the top of support cylinder 1.
Terminate in the groove 18 of support cylinder 1 because hydraulic lock is anti-, and by end cap 19 with its covering, thereby can avoid the weight bump and damage hydraulic lock, thereby this support cylinder 1 has a good Safety performance.
First oilhole of support cylinder provided by the invention and second oilhole also can have other mode of execution.
Please refer to Fig. 4, Fig. 4 is the structural representation of second kind of embodiment of support cylinder of the present invention.
As shown in Figure 4, first oilhole 21 is opened in the position of sidewall of the contiguous support cylinder 1 of upper wall of support cylinder 1, and first oilhole 21 is perpendicular to the upper wall of support cylinder 1.
Please refer to Fig. 5, Fig. 5 is the revolved sectional view along B-B Section line among Fig. 4;
As shown in Figure 5, second oilhole specifically comprises vertical oilhole 26 that is opened in support cylinder 1 interior and the horizontal oilhole 27 that is opened in support cylinder 1 interior.Vertically an end of oilhole 26 is communicated with an end of horizontal oilhole 27, and laterally the other end of oilhole 27 is communicated with the rod chamber 15 of support cylinder 1.
Select the suitable hydraulic lock of size, the hydraulic fluid port of hydraulic lock is communicated with first oilhole 21 and vertical oilhole 26.
According to the described principle of first embodiment of the invention, the support cylinder that present embodiment provides can be realized the control loop of hydraulic oil equally, and owing to reduced a vertical oilhole and horizontal oilhole, thereby this structure is simpler, low cost of manufacture.
Please refer to Fig. 6, Fig. 6 is the structural representation of a kind of embodiment of support device of the present invention.
As shown in Figure 6, the support device that provides of present embodiment comprises the described support cylinder 1 of first embodiment of the invention, the supporting leg 9 of fixedlying connected with support cylinder 1 and fixedlys connected support backing plate 10 with piston rod 2 lower ends of support cylinder 1.
Have several through holes on the sidewall of described I-steel, can supporting leg 7 be fixedlyed connected with support cylinder 1 by high-strength bolt 8.
The lower end of the piston rod of support cylinder 1 is fixedly connected in supporting backing plate, and supporting backing plate is the flat board of rectangle, can increase Area of bearing, reduces the pressure on 1 pair of ground of support cylinder.
As can be known described by first embodiment of the invention, owing to offer first oilhole 11 and second oilhole in the casing wall of first support cylinder 1, avoid by exposing oil pipe fuel feeding, thereby this support device has good Safety performance in the oil cylinder outside.
The support cylinder that above embodiment provides can be applied on various types of hoists.Following examples provide a kind of railway breakdown crane, and this railway breakdown crane is equipped with the described support cylinder of first embodiment of the invention.
Logical being connected and fixed with supporting leg of described support cylinder is connected, and fixedlying connected with the support backing plate in the lower end of the piston rod of support cylinder, and then can realize railway breakdown crane is implemented supporting effect.Working principle by first embodiment of the invention as can be known, this railway breakdown crane has good Safety performance.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. support cylinder, be used to support the supporting leg of heavy-duty machine, this support cylinder has the cavity that cooperates with piston rod, it is characterized in that, the upper wall of described support cylinder is offered first oilhole that leads to the support cylinder rodless cavity, the casing wall of described support cylinder is offered an end and is led to the support cylinder rod chamber, and an end leads to second oilhole of the upper wall outer surface of support cylinder.
2. support cylinder according to claim 1 is characterized in that, described second oilhole specifically comprises: the second vertical oilhole of the first vertical oilhole of support cylinder upper wall and the first horizontal oilhole, support cylinder sidewall and the second horizontal oilhole; Described first vertical oilhole, the first horizontal oilhole, second vertical oilhole and the second horizontal oilhole are communicated with successively, and described first vertical oilhole leads to the outside of described support cylinder, and the described second horizontal oilhole is communicated with described support cylinder rod chamber.
3. support cylinder according to claim 2 is characterized in that, described support cylinder top has the groove that is used to place hydraulic lock, and described first oilhole and second oilhole are communicated with the oilhole of hydraulic lock.
4. support cylinder according to claim 3 is characterized in that, the sidewall of described groove has an opening, and the top of described groove has end cap, and this end cap is connected with the roof anchorage of support cylinder.
5. support cylinder according to claim 1, it is characterized in that, described second oilhole specifically comprises vertical oilhole and the interior horizontal oilhole of support cylinder sidewall in the support cylinder sidewall, described vertical oilhole and described horizontal oilhole are interconnected, and described horizontal oilhole is communicated with the rod chamber of support cylinder.
6. support device comprises support cylinder, the supporting leg of fixedlying connected with support cylinder and fixedlys connected the support backing plate with the piston-rod lower end of support cylinder, it is characterized in that described support cylinder is each described support cylinder of claim 1-5.
7. a hoist is characterized in that, this hoist is equipped with each described support cylinder of claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810005995A CN100596323C (en) | 2008-02-25 | 2008-02-25 | Support cylinder as well as support means and crane having the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810005995A CN100596323C (en) | 2008-02-25 | 2008-02-25 | Support cylinder as well as support means and crane having the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101224857A CN101224857A (en) | 2008-07-23 |
| CN100596323C true CN100596323C (en) | 2010-03-31 |
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ID=39857100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810005995A Expired - Fee Related CN100596323C (en) | 2008-02-25 | 2008-02-25 | Support cylinder as well as support means and crane having the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100596323C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201597654U (en) * | 2010-02-09 | 2010-10-06 | 三一重工股份有限公司 | Crawler type walking machine support oil cylinder and crawler type walking machine |
| DE102010043957A1 (en) * | 2010-11-16 | 2012-05-16 | Putzmeister Engineering Gmbh | Mobile implement with support structure |
| CN102635596B (en) * | 2012-04-26 | 2016-01-20 | 三一重工股份有限公司 | Guide sleeve structure and oil cylinder |
| CN102678664A (en) * | 2012-05-31 | 2012-09-19 | 齐齐哈尔轨道交通装备有限责任公司 | Hydraulic support oil cylinder and crane |
| CN105545224B (en) * | 2014-10-31 | 2018-01-05 | 中国石油天然气股份有限公司 | supporting seat |
| CN109654085A (en) * | 2018-12-29 | 2019-04-19 | 武昌船舶重工集团有限公司 | A kind of lifesaving breakout equipment cylinder and its application |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2137078A1 (en) * | 1971-07-24 | 1973-02-01 | Ver Flugtechnische Werke | HYDRAULIC SUPPORT OR CONTROL ORGAN |
| CN2582919Y (en) * | 2002-11-14 | 2003-10-29 | 三一重工股份有限公司 | Hydraulic supporting leg for heavy load vehicle |
| CN2916219Y (en) * | 2005-10-26 | 2007-06-27 | 长沙中联重工科技发展股份有限公司 | Built-in hydraulic oil cylinder |
| CN200988483Y (en) * | 2006-09-11 | 2007-12-12 | 贵州枫阳液压有限责任公司 | Oil cylinder with support leg |
-
2008
- 2008-02-25 CN CN200810005995A patent/CN100596323C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2137078A1 (en) * | 1971-07-24 | 1973-02-01 | Ver Flugtechnische Werke | HYDRAULIC SUPPORT OR CONTROL ORGAN |
| CN2582919Y (en) * | 2002-11-14 | 2003-10-29 | 三一重工股份有限公司 | Hydraulic supporting leg for heavy load vehicle |
| CN2916219Y (en) * | 2005-10-26 | 2007-06-27 | 长沙中联重工科技发展股份有限公司 | Built-in hydraulic oil cylinder |
| CN200988483Y (en) * | 2006-09-11 | 2007-12-12 | 贵州枫阳液压有限责任公司 | Oil cylinder with support leg |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101224857A (en) | 2008-07-23 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 161002 Qigihar City, Heilongjiang province Tiefeng District Plant Road No. 36 Patentee after: CRRC QIQIHAR ROLLING STOCK Co.,Ltd. Address before: 161002 Qigihar City, Heilongjiang province Tiefeng District Plant Road No. 36 Patentee before: QIQIHAR RAILWAY ROLLING STOCK Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100331 |