CN202768535U - Oil cylinder locking device - Google Patents
Oil cylinder locking device Download PDFInfo
- Publication number
- CN202768535U CN202768535U CN 201220477681 CN201220477681U CN202768535U CN 202768535 U CN202768535 U CN 202768535U CN 201220477681 CN201220477681 CN 201220477681 CN 201220477681 U CN201220477681 U CN 201220477681U CN 202768535 U CN202768535 U CN 202768535U
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- Prior art keywords
- locking
- oil cylinder
- lock pawl
- column
- locking device
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses an oil cylinder locking device. To achieve the purpose of safe and fast locking of a gate hydraulic pressure on-and-off machine oil cylinder, the oil cylinder locking device comprises a locking base connected with a cylinder body, a locking column arranged in the locking base and connected with a piston rod, and a locking claw which is arranged between the locking column and the locking base and can constrain the locking column to move downward. The locking claw is driven by a servo device to be locked or unlocked. When the locking claw is unlocked, the locking column can freely move up and down relative to the locking base. When the locking claw is locked, a locking column head arranged on the upper portion of the locking column is arranged on the locking claw. The oil cylinder locking device is even and reasonable in stress along main stressed coupling parts such as the locking column and the locking claw, compact in servo structure, short in servo stroke and strong in choice of servo power source, and solves the locking problems of the gate hydraulic pressure on-and-off machine oil cylinder of Liyang tail water accidents.
Description
Technical field
The utility model relates to a kind of oil cylinder locking device.
Background technique
Because the needs of general arrangement, Liyang tail water emergency gate oil cylinder of hydraulic headstock gear must arrange locking device.
Chinese patent ZL201020222977.5 discloses a kind of hydraulic cylinder locking device, comprise the locked cylinder that locking lever, clamping block and driving clamping block move, described locking lever is arranged in the master cylinder and with the main oil cylinder piston bar and is fixedly connected with, offer locking slot on the described locking lever, offer the clamping block guide groove on the cylinder cap of master cylinder, clamping block guide groove and clamping block guide groove perpendicular with locking slot communicates with locking slot, and clamping block and clamping block guide groove are slidingly connected.But this patent is stressed unreasonable along the main stress couple, and structure is complicated, is difficult to adapt to the locking of Liyang tail water emergency gate oil cylinder of hydraulic headstock gear.
The model utility content
For the safety that realizes the gate oil cylinder of hydraulic headstock gear, the purpose of quick lock in, the utility model aims to provide a kind of oil cylinder locking device, this locking device is stressed evenly rationally along main stress couple (locking column and lock pawl), servomechanism is compact, servo stroke is short, and the servo power source is alternative strong.
To achieve these goals, the technological scheme that adopts of the utility model is:
A kind of oil cylinder locking device, its structural feature be, but comprise and the locking seat with locking seat hole that cylinder body connects, be contained in the locking column that connects with piston rod in the locking seat, lock pawl that the limitation lock fixed column between being contained in locking column and locking moves down; Described lock pawl drives its locking or release by servomechanism installation; When lock pawl discharged, locking column can relatively lock seat and freely move up and down; When lock pawl locked, the locking column cap that is positioned at locking column top placed on the lock pawl.
It below is the further improvement of the utility model scheme.
According to embodiment of the present utility model, described lock pawl is preferably two, and two lock pawls are arranged symmetrically in the outside of locking column; The root of described lock pawl is movably connected on the locking seat; The inner of described lock pawl is movably connected on the driver plate by slide-bar, and this driver plate links to each other with the pull bar that servomechanism installation drives; Described pull bar, driver plate, lock pawl and slide-bar form connecting rod.Further, the root of described lock pawl is hinged on the locking seat by bearing pin.
In order to guarantee that the locking column easy on and off moves under releasing state, the aperture, locking seat hole of described locking seat is more than or equal to the maximum outside diameter of locking column.
Described driver plate has the slotted hole that laterally slides for slide-bar, and thus, when pull bar promoted driver plate, two bearing pins were along corresponding slotted hole move toward one another, and lock pawl opens release; During pull bar pulling driver plate, two bearing pins move dorsad along corresponding slotted hole, and lock pawl draws the locking locking column in.
Described slide-bar preferably is fixedly connected on the inner of described lock pawl, when slide-bar slides along the slotted hole of driver plate thus, and lock pawl locking or discharge.
Working principle of the present utility model is: when oil cylinder is ready, oil cylinder is promoted to top dead center and shuts down, and locking device enters lock state automatically.The oil cylinder control program allows the downslide of oil cylinder a certain amount of (such as 250mm).When under the locking column cap is more than lock pawl, sliding to the approach locking pawl, the oil cylinder automatic re-ascending; When control is broken down oil cylinder when continue gliding, the lock pawl upper-end surface of taking a seat, locking column column cap lower end surface stops to continue to glide.
As shown in Figure 3, it is descending that locking column head d2 passes locking seat hole d1 in the locking releasing state, and the oil cylinder regulating gate is transferred.
3. this locking device structure characteristics
Pull bar, driver plate, lock pawl and bearing pin on driver plate slotted hole and form connecting rod with the slide-bar of lock pawl consubstantiality.Lock pawl rotates around bearing pin, slide-bar rotates around bearing pin and slides along driver plate slotted hole inwall simultaneously, driver plate connects with bolt and pull bar becomes integral body, driving force makes pull bar reciprocating, driving force is rotated around bearing pin through the slotted hole on the driver plate and the driving of the slide-bar on lock pawl lock pawl, realizes locking and the release of locking device.
4. this locking device is lubricated
Because locking device is fully immersed in the interior hydraulic oil of hoist oil cylinder rodless cavity, all working surfaces that need to lubricate of locking device all can obtain good lubrication.
5. the two ends stop control of this locking device operation
The two ends stop control of this locking device operation, the to some extent difference by the difference of using power source:
1) adopts hydraulic driving
When two lock pawls that are arranged symmetrically with were closed, servo-cylinder can't be rotated further because of lock pawl, and oil pressure rises rapidly in the actuator chamber, triggered the hydraulic system pressure sensor action, and the servo-system system stops automatically;
When two lock pawls that are arranged symmetrically with discharged, slide-bar slides into slotted hole the inner along slotted hole can't be continued to slide, and oil pressure rises rapidly in the actuator chamber, triggers the hydraulic system pressure sensor action, and the servo-system system stops automatically;
2) adopt electric pushrod to drive
Can select electric pushrod with positioning control in hoist manufactory, to adjust during Installation and Debugging.
Compared with prior art, the beneficial effects of the utility model are: the utility model is stressed evenly rationally along main stress couple (locking column and lock pawl), servomechanism is compact, servo stroke is short, the servo power source is alternative strong, has solved the lockout issue of Liyang tail water emergency gate oil cylinder of hydraulic headstock gear.
Below in conjunction with drawings and Examples the utility model is further elaborated.
Description of drawings
Fig. 1 is a kind of embodiment's of the utility model lock state structural representation;
Fig. 2 is the oil cylinder locking device releasing state figure of Fig. 1;
Fig. 3 is the A-A sectional view of Fig. 1.
In the drawings
1-locks seat; The 2-locking column; The 3-lock pawl; The 4-bearing pin; The 5-driver plate;
The 6-pull bar; The 7-slide-bar; The 8-slotted hole; 1a-locking seat hole; 2a-locks column cap.
Embodiment
A kind of oil cylinder locking device as shown in Figure 1, mainly comprises locking seat 1, locking column 2, lock pawl 3, bearing pin 4, driver plate 5 and pull bar 6.Wherein locking seat 1 connects by connecting bolt and cylinder body, and locking column 2 connects by screw thread and piston rod, and pull bar 6 combines together with the main driving rod member of servomechanism installation (can be oil cylinder or electric pushrod).Oil cylinder locking device lock state as shown in Figure 1, releasing state are as shown in Figure 2.Described lock pawl 3 is contained between locking column 2 and the locking seat 1 and but limitation lock fixed column 2 moves down; Described lock pawl 3 drives its locking or release by servomechanism installation, when lock pawl 3 discharges, locking column 2 can relatively lock seat 1 and freely move up and down, when lock pawl 3 locking, the locking column cap 2a that is positioned at locking column 2 tops places on the lock pawl 3, these locking column 2 integral body are "T"-shaped, and locking column cap 2a is positioned at the top of locking column 2.Described lock pawl 3 is two, and two lock pawls 3 are arranged symmetrically in the outside of locking column 2; As shown in Figure 3, the root of described lock pawl 3 is hinged on the locking seat 1 by bearing pin 4; The inner of described lock pawl 3 is movably connected on the driver plate 5 by slide-bar 7, and this driver plate 5 links to each other with the pull bar 6 that servomechanism installation drives; Described pull bar 6, driver plate 5, lock pawl 3 form connecting rod with slide-bar 7.The 1a aperture, locking seat hole of described locking seat 1 is more than or equal to the maximum outside diameter of locking column 2.Described driver plate 5 has the slotted hole 8 that cooperates slide-bar 7 laterally to slide.Described slide-bar 7 is fixedly connected on the inner of described lock pawl 3.
During lock pawl 3 locking, two lock pawls 3 close up internal diameter of formation and lock the little circular channel of column cap 2a external diameter.
Thus, when pull bar 6 promoted driver plate 5, two bearing pins 4 were along corresponding slotted hole 8 move toward one another, and lock pawl 3 opens release; During pull bar 6 pulling driver plate 5, two bearing pins 4 move dorsad along corresponding slotted hole 8, and lock pawl 3 draws locking locking column 2 in.
The content that above-described embodiment is illustrated should be understood to these embodiments and only is used for being illustrated more clearly in the utility model, and be not used in the restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present utility model.
Claims (6)
1. oil cylinder locking device, it is characterized in that, comprise and the locking seat (1) with locking seat hole (1a) that cylinder body connects, be contained in the locking column (2) that connects with piston rod in the locking seat (1), be contained in locking column (2) with lock (1) but between the lock pawl (3) that moves down of limitation lock fixed column (2); Described lock pawl (3) drives its locking or release by servomechanism installation; When lock pawl (3) discharged, locking column (2) can relatively lock seat (1) and freely move up and down; When lock pawl (3) locked, the locking column cap (2a) that is positioned at locking column (2) top placed on the lock pawl (3).
2. oil cylinder locking device according to claim 1 is characterized in that, described lock pawl (3) is two, and two lock pawls (3) are arranged symmetrically in the outside of locking column (2); The root of described lock pawl (3) is movably connected on the locking seat (1); The inner of described lock pawl (3) is movably connected on the driver plate (5) by slide-bar (7), and this driver plate (5) links to each other with the pull bar (6) that servomechanism installation drives; Described pull bar (6), driver plate (5), lock pawl (3) form connecting rod with slide-bar (7).
3. oil cylinder locking device according to claim 2 is characterized in that, the root of described lock pawl (3) is hinged on the locking seat (1) by bearing pin (4).
4. oil cylinder locking device according to claim 1 is characterized in that, the aperture, locking seat hole (1a) of described locking seat (1) is more than or equal to the maximum outside diameter of locking column (2).
5. oil cylinder locking device according to claim 1 is characterized in that, described driver plate (5) has the slotted hole (8) that cooperation slide-bar (7) laterally slides.
6. oil cylinder locking device according to claim 2 is characterized in that, described slide-bar (7) is fixedly connected on the inner of described lock pawl (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220477681 CN202768535U (en) | 2012-09-19 | 2012-09-19 | Oil cylinder locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220477681 CN202768535U (en) | 2012-09-19 | 2012-09-19 | Oil cylinder locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202768535U true CN202768535U (en) | 2013-03-06 |
Family
ID=47775115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220477681 Expired - Lifetime CN202768535U (en) | 2012-09-19 | 2012-09-19 | Oil cylinder locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202768535U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840191A (en) * | 2012-09-19 | 2012-12-26 | 中国水电顾问集团中南勘测设计研究院 | Oil cylinder locking device |
| CN113339355A (en) * | 2021-06-24 | 2021-09-03 | 中国长江电力股份有限公司 | Hydraulic locking device and method for completely clamping inside of oil cylinder |
-
2012
- 2012-09-19 CN CN 201220477681 patent/CN202768535U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840191A (en) * | 2012-09-19 | 2012-12-26 | 中国水电顾问集团中南勘测设计研究院 | Oil cylinder locking device |
| CN102840191B (en) * | 2012-09-19 | 2015-06-17 | 中国电建集团中南勘测设计研究院有限公司 | Oil cylinder locking device |
| CN113339355A (en) * | 2021-06-24 | 2021-09-03 | 中国长江电力股份有限公司 | Hydraulic locking device and method for completely clamping inside of oil cylinder |
| CN113339355B (en) * | 2021-06-24 | 2023-11-28 | 中国长江电力股份有限公司 | Hydraulic locking device and method for completely clamping inside oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA POWER GROUP ZHONGNAN INVESTIGATION DESIGN + Free format text: FORMER NAME: HYDROCHINA ZHONGNAN ENGINEERING CORPORATION Owner name: HYDROCHINA ZHONGNAN ENGINEERING CORPORATION Free format text: FORMER NAME: ZHONGNAN PROSPECTING DESIGN INST. CHINA HYDRAUELECTRIC CONSULTANT GROUP |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 410014, 9 camphor Road, Yuhua District, Hunan, Changsha Patentee after: HYDROCHINA ZHONGNAN ENGINEERING Corp. Address before: 410014, 9 camphor Road, Yuhua District, Hunan, Changsha Patentee before: Mid-South Hydroelectric Investigation & Design Institute of China Hydropower Engineering Consulting Group |
|
| CP03 | Change of name, title or address |
Address after: 410014 Hunan province Changsha Yuhua District, camphor Road No. 16 Patentee after: POWERCHINA ZHONGNAN ENGINEERING Corp.,Ltd. Address before: 410014, 9 camphor Road, Yuhua District, Hunan, Changsha Patentee before: HYDROCHINA ZHONGNAN ENGINEERING Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130306 |