CN102935985A - Route limiting stopper of hydraulic hoisting device - Google Patents
Route limiting stopper of hydraulic hoisting device Download PDFInfo
- Publication number
- CN102935985A CN102935985A CN2012104604092A CN201210460409A CN102935985A CN 102935985 A CN102935985 A CN 102935985A CN 2012104604092 A CN2012104604092 A CN 2012104604092A CN 201210460409 A CN201210460409 A CN 201210460409A CN 102935985 A CN102935985 A CN 102935985A
- Authority
- CN
- China
- Prior art keywords
- plate
- limiting
- rocking bar
- hydraulic
- guide rod
- 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
Links
Images
Abstract
A route limiting stopper of a hydraulic hoisting device comprises a limiting stopper shell body, a screw, a position hitting plate, a guide rod, a limiting part, a rocking arm, a reversing valve and a bearing. The screw rotates along with a rolling drum, the position hitting plate fixed on the end portion of the screw cannot rotate due to the action of the guide rod; the connection mode of the position hitting plate and the screw is relatively rotatable, accordingly the number of rotating turns of the rolling drum is the rotating turns of the screw, converted into the number of screw pitch of the screw, and further converted into axial displacement of the position hitting rod; and then limiting is achieved by pushing the limiting through the position hitting plate. The route limiting stopper of the hydraulic hoisting device has the advantages of being accurate and reliable in limiting, sensitive in movement, simple and convenient to adjust, easy to maintain, durable, convenient to mount, low in cost and strong in practical applicability.
Description
Technical field
The present invention relates to a kind of Hydraulic for lifting load device travel inhibiting device, particularly a kind of Hydraulic for lifting load device travel inhibiting device.
Background technology
At present, general weight-lifting equipment is all with distance caging device, and the stroke limiter that hoists commonly used in elevator machinery class safety guard has weight hammer type, coding type and driving type etc. several.The heavy hammer type lifting stroke limiter has adopted suspension hook to collide the principle that lever makes the counter weight balanced type switch motion when the rising limit, has the shortcomings such as fragile, poor reliability, maintenance be large.Coding type the hoist coder of stroke limiter and drum shaft connection, the output pulse code accurately represents reel revolution and angle, has equally the shortcomings such as poor reliability, maintenance is large, cost is higher.The hoist reductor of stroke limiter of driving type is connected with drum shaft, selects transmitting ratio to make worm gear wheel shaft upper-part make switch motion when the control position, is a kind of modal distance caging device.Its Typical Representative is for being Typical Representative such as the patent No.: ZL 200520111759.3 Cam type lifting devices, its hydraulic stop is that LS mouth connection limit valve carries out spacing from the working oil path of manual apportioning valve, although its adjusting is convenient, Costco Wholesale is high, usage range is little, pipeline is long, limit valve exposes outside outward easily get rusty malfunctioning! It is very high to also have its apportioning valve itself to require, and little of usage range is practically applicable to the apportioning valve of manual apportioning valve working oil path band LS mouth, and this is than the apportioning valve price with LS mouth same specification model is expensive not a lot.Also have the working oil path of the apportioning valve of part brand not to be with the LS mouth, just having no idea to hoist, it is spacing to carry out up and down.
Summary of the invention
Goal of the invention: for weak point of the prior art, a kind of range limiter of Hydraulic for lifting load equipment is provided, this range limiter can accomplish spacing accurately and reliably, be active in one's movements, debug easy, maintenance is easy, durable in use, easy for installation, cost is low, practical.
Technical scheme: a kind of range limiter of Hydraulic for lifting load equipment comprises limiting device housing, screw rod, hits a plate, guide rod, limiting component, rocking bar, change-over valve and bearing; Described limiting device housing is fixedly mounted on the support of Hydraulic for lifting load equipment, and described screw rod is connected by the drum shaft of screw thread with Hydraulic for lifting load equipment, and described bearing is installed between limiting device housing and the drum shaft; Described change-over valve comprises valve body and contact lever, and a described plate rotary type that hits is fixed in the screw rod end, and described guide rod is fixedly mounted on the limiting device housing, and the center of described guide rod is parallel with the center of drum shaft, and described guide rod passes and hits a plate top; Described rocking bar is captiveed joint with the contact lever of change-over valve, and described limiting component is connected with the contact lever by rocking bar, hits a plate when spacing and promotes limiting component promotes contact lever realization change-over valve by rocking bar commutation.Screw rod of the present invention rotates with reel, and be fixed on the screw rod end hit a plate because the effect of guide rod can't be rotated, because hitting the connection mode of a plate and screw rod is can be counterrotating, the number of turns of therefore reel being rotated is that the number of turns of bolt rotary is converted into the screw pitch number, is further converted to the longitudinal travel that hits a bar; Realize spacing by hitting a plate promotion limiting component again.
Preferred version one: this preferred version can be realized bidirectionally limited, described limiting component comprises lower limiting board and upper limit plate, described upper limit plate is fixed on and forms " F " shape structure on the lower limiting board, and the middle part that described rocking bar is fixed in lower limiting board forms fork configuration; The described bottom of a plate of hitting is between lower limiting board and upper limit plate.
For the convenient stroke-limit of regulating, described lower limiting board comprises the elongate slots on limiting section, base plate and the base plate, described limiting section is vertical with base plate, described upper limit plate is captiveed joint with lower limiting board by elongate slots, described rocking bar is captiveed joint with lower limiting board by elongate slots, and the rocking bar junction is between upper limit plate and limiting section.
In order to realize accurate limiting, described top of hitting a plate is provided with the pilot hole that can pass guide rod, and described center of hitting a plate is provided with the stepped hole that is connected with the screw rod rotary type, and described bottom of hitting a plate is provided with the limited step that contacts with limiting component.
Preferred version two: this preferably can only realize unidirectional spacing, and described limiting component comprises spacing spheroid, and described spacing spheroid is fixed in the upper end of rocking bar, and a described plate bottom of hitting is provided with the spacing inclined-plane that contacts with spacing spheroid.
Beneficial effect: of the present invention can accomplish spacing accurately and reliably, be active in one's movements, debug easy, maintenance is easy, durable in use, easy for installation, cost is low, practical.
Description of drawings
Fig. 1 is the first exemplary construction scheme drawing of range limiter of the present invention;
Fig. 2 is the first example lower limit position plate structure scheme drawing of range limiter of the present invention;
Fig. 3 hits a plate structure scheme drawing in the first example of range limiter of the present invention;
Fig. 4 is the second exemplary construction scheme drawing of range limiter of the present invention.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
Embodiment one
As Figure 1-3, present embodiment can be realized bidirectionally limited, and a kind of range limiter of Hydraulic for lifting load equipment comprises limiting device housing 1, screw rod 2, hits a plate 3, guide rod 4, limiting component 5, rocking bar 6, change-over valve 7 and bearing 8; Described limiting device housing 1 is fixedly mounted on the support of Hydraulic for lifting load equipment, and described screw rod 2 is connected with the drum shaft 9 of Hydraulic for lifting load equipment by screw thread, and described bearing 8 is installed between limiting device housing 1 and the drum shaft 9; Described change-over valve 7 comprises valve body 71 and contact lever 72, a described plate 3 rotary types that hit are fixed in screw rod 2 ends, described guide rod 4 is fixedly mounted on the limiting device housing 1, and the center of described guide rod 4 is parallel with the center of drum shaft 9, and described guide rod 4 passes and hits a plate 3 tops; Described rocking bar 6 is captiveed joint with the contact lever 72 of change-over valve 7, and described limiting component 5 is connected with contact lever 72 by rocking bar 6, hits a plate 3 when spacing and promotes limiting component 5 promotes contact lever 72 realization change-over valves 7 by rocking bar 6 commutation.
For the convenient stroke-limit of regulating, described limiting component 5 comprises lower limiting board 51 and upper limit plate 52, and described upper limit plate 52 is fixed on and forms " F " shape structure on the lower limiting board 51, and the middle part that described rocking bar 6 is fixed in lower limiting board 51 forms fork configuration; The described bottom of a plate 3 of hitting is between lower limiting board 51 and upper limit plate 52.
For the convenient stroke-limit of regulating, described lower limiting board 51 comprises the elongate slots 513 on limiting section 511, base plate 512 and the base plate 512, described limiting section 511 is vertical with base plate 512, described upper limit plate 52 is captiveed joint with lower limiting board 51 by elongate slots 513, described rocking bar 6 is captiveed joint with lower limiting board 51 by elongate slots 513, and rocking bar 6 junctions are between upper limit plate 52 and limiting section 511.
In order to realize accurate limiting, described top of hitting a plate 3 is provided with the pilot hole 31 that can pass guide rod 4, described center of hitting a plate 3 is provided with the stepped hole 32 that is connected with screw rod 2 rotary types, and described bottom of hitting a plate 3 is provided with the limited step 33 that contacts with limiting component 5.
Principle of work: screw rod of the present invention 2 rotates with reel, and be fixed on screw rod 2 ends hit a plate 3 because the effect of guide rod 4 can't be rotated, because hitting the connection mode of a plate 3 and screw rod 2 is can be counterrotating, therefore the number of turns with the reel rotation is that the number of turns that screw rod 2 rotates is converted into screw rod 2 pitch numbers, is further converted to the longitudinal travel that hits a bar 3; Realize spacing by hitting a plate 3 promotion limiting components 5 again.
Embodiment two
As shown in Figure 4, present embodiment can only be realized unidirectional spacing, and a kind of range limiter of Hydraulic for lifting load equipment comprises limiting device housing 1, screw rod 2, hits a plate 3, guide rod 4, limiting component 5, rocking bar 6, change-over valve 7 and bearing 8; Described limiting device housing 1 is fixedly mounted on the support of Hydraulic for lifting load equipment, and described screw rod 2 is connected with the drum shaft 9 of Hydraulic for lifting load equipment by screw thread, and described bearing 8 is installed between limiting device housing 1 and the drum shaft 9; Described change-over valve 7 comprises valve body 71 and contact lever 72, a described plate 3 rotary types that hit are fixed in screw rod 2 ends, described guide rod 4 is fixedly mounted on the limiting device housing 1, and the center of described guide rod 4 is parallel with the center of drum shaft 9, and described guide rod 4 passes and hits a plate 3 tops; Described rocking bar 6 is captiveed joint with the contact lever 72 of change-over valve 7, and described limiting component 5 is connected with contact lever 72 by rocking bar 6, hits a plate 3 when spacing and promotes limiting component 5 promotes contact lever 72 realization change-over valves 7 by rocking bar 6 commutation.Described limiting component 5 comprises spacing spheroid 53, and described spacing spheroid 53 is fixed in the upper end of rocking bar 6, and a described plate 3 bottoms of hitting are provided with the spacing inclined-plane 34 that contacts with spacing spheroid 53.
Principle of work: screw rod of the present invention 2 rotates with reel, and be fixed on screw rod 2 ends hit a plate 3 because the effect of guide rod 4 can't be rotated, because hitting the connection mode of a plate 3 and screw rod 2 is can be counterrotating, therefore the number of turns with the reel rotation is that the number of turns that screw rod 2 rotates is converted into screw rod 2 pitch numbers, is further converted to the longitudinal travel that hits a bar 3; Realize spacing by hitting a plate 3 promotion limiting components 5 again.
Claims (5)
1. the range limiter of a Hydraulic for lifting load equipment is characterized in that: comprise limiting device housing (1), screw rod (2), hit a plate (3), guide rod (4), limiting component (5), rocking bar (6), change-over valve (7) and bearing (8); Described limiting device housing (1) is fixedly mounted on the support of Hydraulic for lifting load equipment, and described screw rod (2) is connected with the drum shaft (9) of Hydraulic for lifting load equipment by screw thread, and described bearing (8) is installed between limiting device housing (1) and the drum shaft (9); Described change-over valve (7) comprises valve body (71) and contact lever (72), a described plate (3) rotary type that hits is fixed in screw rod (2) end, described guide rod (4) is fixedly mounted on the limiting device housing (1), the center of described guide rod (4) is parallel with the center of drum shaft (9), and described guide rod (4) passes and hits a plate (3) top; Described rocking bar (6) is captiveed joint with the contact lever (72) of change-over valve (7), described limiting component (5) is connected with contact lever (72) by rocking bar (6), hits a plate (3) when spacing and promotes limiting component (5) promotes contact lever (72) realization change-over valve (7) by rocking bar (6) commutation.
2. the range limiter of Hydraulic for lifting load equipment according to claim 1, it is characterized in that: described limiting component (5) comprises lower limiting board (51) and upper limit plate (52), described upper limit plate (52) is fixed on upper " F " shape structure that forms of lower limiting board (51), and the middle part that described rocking bar (6) is fixed in lower limiting board (51) forms fork configuration; Described bottom of hitting a plate (3) is positioned between lower limiting board (51) and the upper limit plate (52).
3. the range limiter of Hydraulic for lifting load equipment according to claim 2, it is characterized in that: described lower limiting board (51) comprises the elongate slots (513) on limiting section (511), base plate (512) and the base plate (512), described limiting section (511) is vertical with base plate (512), described upper limit plate (52) is captiveed joint with lower limiting board (51) by elongate slots (513), described rocking bar (6) is captiveed joint with lower limiting board (51) by elongate slots (513), and rocking bar (6) junction is positioned between upper limit plate (52) and the limiting section (511).
4. according to claim 1 and 2 or the range limiter of 3 described Hydraulic for lifting load equipment, it is characterized in that: described top of hitting a plate (3) is provided with the pilot hole (31) that can pass guide rod (4), described center of hitting a plate (3) is provided with the stepped hole (32) that is connected with screw rod (2) rotary type, and described bottom of hitting a plate (3) is provided with the limited step (33) that contacts with limiting component (5).
5. the range limiter of Hydraulic for lifting load equipment according to claim 1, it is characterized in that: described limiting component (5) comprises spacing spheroid (53), described spacing spheroid (53) is fixed in the upper end of rocking bar (6), and a described plate (3) bottom of hitting is provided with the spacing inclined-plane (34) that contacts with spacing spheroid (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104604092A CN102935985A (en) | 2012-11-15 | 2012-11-15 | Route limiting stopper of hydraulic hoisting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104604092A CN102935985A (en) | 2012-11-15 | 2012-11-15 | Route limiting stopper of hydraulic hoisting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102935985A true CN102935985A (en) | 2013-02-20 |
Family
ID=47694921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104604092A Pending CN102935985A (en) | 2012-11-15 | 2012-11-15 | Route limiting stopper of hydraulic hoisting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102935985A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2043235U (en) * | 1989-01-18 | 1989-08-23 | 建设部长沙建筑机械研究所 | Simple rotary position limiting device |
| CN2546425Y (en) * | 2002-04-12 | 2003-04-23 | 宝钢集团上海第一钢铁有限公司 | Safety protector for crane |
| CN201301975Y (en) * | 2008-09-17 | 2009-09-02 | 徐州重型机械有限公司 | Liquid proportional pressure-reducing valve, valve bank, suspension arm and hoisting hydraulic control system |
| CN102030267A (en) * | 2011-01-17 | 2011-04-27 | 徐州重型机械有限公司 | Hoist and closed hydraulic system thereof |
| CN102556875A (en) * | 2012-01-17 | 2012-07-11 | 中国水产科学研究院渔业机械仪器研究所 | Wave compensation system for marine exploration device |
| CN102627241A (en) * | 2012-04-23 | 2012-08-08 | 江苏金土木建设集团华顺工程有限公司 | Lifting travel limiting device for elevator |
| CN202912616U (en) * | 2012-11-15 | 2013-05-01 | 江苏威和重工有限公司 | Stroke stopper of hydraulic hoisting equipment |
-
2012
- 2012-11-15 CN CN2012104604092A patent/CN102935985A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2043235U (en) * | 1989-01-18 | 1989-08-23 | 建设部长沙建筑机械研究所 | Simple rotary position limiting device |
| CN2546425Y (en) * | 2002-04-12 | 2003-04-23 | 宝钢集团上海第一钢铁有限公司 | Safety protector for crane |
| CN201301975Y (en) * | 2008-09-17 | 2009-09-02 | 徐州重型机械有限公司 | Liquid proportional pressure-reducing valve, valve bank, suspension arm and hoisting hydraulic control system |
| CN102030267A (en) * | 2011-01-17 | 2011-04-27 | 徐州重型机械有限公司 | Hoist and closed hydraulic system thereof |
| CN102556875A (en) * | 2012-01-17 | 2012-07-11 | 中国水产科学研究院渔业机械仪器研究所 | Wave compensation system for marine exploration device |
| CN102627241A (en) * | 2012-04-23 | 2012-08-08 | 江苏金土木建设集团华顺工程有限公司 | Lifting travel limiting device for elevator |
| CN202912616U (en) * | 2012-11-15 | 2013-05-01 | 江苏威和重工有限公司 | Stroke stopper of hydraulic hoisting equipment |
Non-Patent Citations (2)
| Title |
|---|
| 张国雷: "重锤式起升高度限位器的改进", 《起重运输机械》, no. 11, 30 November 1992 (1992-11-30) * |
| 邵宪琴: "起升高度限位器的改进设计", 《建筑机械化》, no. 01, 31 January 1996 (1996-01-31) * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202429824U (en) | Machine room-free speed limiter | |
| CN203529859U (en) | Automatic lifting platform | |
| CN109292686A (en) | A kind of anti-fall mechanism of light duty platform | |
| CN202912616U (en) | Stroke stopper of hydraulic hoisting equipment | |
| CN203906975U (en) | Pneumatic actuator for valve | |
| CN201703934U (en) | Centrifugal fling block type speed-limiting anti-falling safety device | |
| CN102935985A (en) | Route limiting stopper of hydraulic hoisting device | |
| CN103994264A (en) | Valve pneumatic actuator | |
| CN204358079U (en) | Control device and there is the vehicle of control device | |
| CN109626228A (en) | A kind of tandem major-minor derrick crane | |
| CN202912604U (en) | Hydraulic hoisting equipment | |
| CN208665497U (en) | A kind of all-directional rotation limiting device for photoelectric platform | |
| CN202912617U (en) | Stroke limiting valve of hydraulic hoisting equipment | |
| CN204369348U (en) | Highly sensitive safety tongs shift mechanism | |
| CN202766182U (en) | Electric hydraulic control rope blocking device | |
| CN102963830B (en) | Hydraulic hoisting apparatus | |
| CN205908424U (en) | A control handle for inclined disc type variable piston pump | |
| CN101865267B (en) | Connecting rod type transmission mechanism | |
| CN205651375U (en) | Suspension wire is patrolled and examined robot and is crossed barrier mechanism | |
| CN208249833U (en) | Working bucket disk weighing system and aerial work platform with the system | |
| CN203284116U (en) | Limiting device of electric chain hoist | |
| CN201495087U (en) | Filling machine piston lifting device | |
| CN102963834B (en) | The stroke position limiting valve of hydraulic hoisting apparatus | |
| CN202992094U (en) | Gear drive lifting device | |
| CN204512844U (en) | Folding elevating type 3.5D degree-of-freedom cradle head |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130220 |