CN204675705U - Pneumatic crane hook peculiar to vessel hoists inhibiting device - Google Patents
Pneumatic crane hook peculiar to vessel hoists inhibiting device Download PDFInfo
- Publication number
- CN204675705U CN204675705U CN201520304662.8U CN201520304662U CN204675705U CN 204675705 U CN204675705 U CN 204675705U CN 201520304662 U CN201520304662 U CN 201520304662U CN 204675705 U CN204675705 U CN 204675705U
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- Prior art keywords
- reversal valve
- way
- pneumatic reversal
- pneumatic
- suspension hook
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Abstract
The utility model discloses a kind of pneumatic crane hook peculiar to vessel to hoist inhibiting device, comprise winch, air motor, 3-position 4-way hand change over valve, bi-bit bi-pass Pneumatic reversal valve, two-position three way Pneumatic reversal valve and two-position three way Pneumatic reversal valve control mechanism, 3-position 4-way air operated reversing valve two mouth is connected with air motor two ends respectively, source output end is connected with 3-position 4-way air operated reversing valve input end by bi-bit bi-pass Pneumatic reversal valve, source output end is also connected with two-position three way Pneumatic reversal valve input end, two-position three way Pneumatic reversal valve mouth is connected with bi-bit bi-pass Pneumatic reversal valve gas control end, two-position three way Pneumatic reversal valve control mechanism is arranged on the upside of suspension hook.The utility model structure is simple, low cost of manufacture, adopt sender steel rope and hoist block composition two-position three way Pneumatic reversal valve control mechanism to suspension hook hoist carry out spacing, solve the spacing problem that air hoist machine suspension hook peculiar to vessel hoists under explosion-proof environment, and portable pneumatic loop wheel machine can be used for.
Description
Technical field
The utility model relates to a kind of weight-lifting equipment peculiar to vessel, particularly relates to a kind of pneumatic crane hook with explosion prevention function and to hoist inhibiting device, belong to deck machinery technical field.
Background technology
The winch of pneumatic loop wheel machine folding and unfolding lifting rope adopts air motor to drive, and has structure simple, cheap, and space is arranged relatively more flexible, and is convenient to make the advantages such as portable, and various ships is used widely.In the occasion that some operating needs is higher, require the suspension hook of pneumatic loop wheel machine to possess and hoist limit function to prevent safety misadventure.The existing suspension hook inhibiting device that hoists has following two kinds:
1, at arm head, suspension hook is installed to hoist lead limit switch, when suspension hook hoist encounter limit switch time, limit switch contact closes, automatically controlled signal is sent to the two-position two-way solenoid valve be connected to for driving on the main air inlet path of the air motor of winch by relay, make its power-off to cut off the air inlet path of air motor, thus winch is stopped operating, suspension hook stops hoisting and obtaining spacing.
2, driving the air motor axle head of winch to install signal output shaft, signal output shaft connects multiple-pass limiting device, the adjusting bolt in limiting device can set suspension hook at an arbitrary position time export electric-controlled switch signal.When capstan drum turns to the setting number of turns, limit switch sends signal to the two-position two-way solenoid valve led on the main air inlet path of air motor, and make electromagnetic valve power-off to cut off air inlet path, winch stops operating, thus plays position-limiting action.
The inhibiting device of above two kinds of pneumatic loop wheel machines can meet the spacing requirement of Conventional pneumatic loop wheel machine, but at portable pneumatic loop wheel machine and have requirement of explosion proof occasion use time, above-mentioned two kinds adopt the hoist components and parts of inhibiting device of automatically controlled spacing suspension hooks all must use expensive explosion-proof components and parts, cause cost to increase a lot; And automatically controlledly under power failure state spacingly also cannot to work.In addition, the connecting cable of electric control element also cannot move, and cannot be used for portable pneumatic loop wheel machine.
Utility model content
It is simple, easy to use that the purpose of this utility model is to provide a kind of structure, do not adopt automatically controlled spacing and the peculiar to vessel pneumatic crane hook that can be used for portable pneumatic loop wheel machine hoists inhibiting device.
The purpose of this utility model is achieved by the following technical programs:
A kind of pneumatic crane hook peculiar to vessel hoists inhibiting device, comprise winch, air motor, 3-position 4-way hand change over valve, bi-bit bi-pass Pneumatic reversal valve, two-position three way Pneumatic reversal valve and two-position three way Pneumatic reversal valve control mechanism, air motor output shaft is connected with winch, lifting rope is wrapped on winch, and lifting rope lower end is connected with suspension hook; 3-position 4-way air operated reversing valve two mouth is connected with air motor two ends respectively; Source output end is connected with 3-position 4-way air operated reversing valve input end by bi-bit bi-pass Pneumatic reversal valve, source output end is also connected with two-position three way Pneumatic reversal valve input end, two-position three way Pneumatic reversal valve mouth is connected with bi-bit bi-pass Pneumatic reversal valve gas control end, and two-position three way Pneumatic reversal valve control mechanism is arranged on the upside of suspension hook.
The purpose of this utility model can also be realized further by following technical measures:
Aforesaid pneumatic crane hook peculiar to vessel hoists inhibiting device, and wherein shutoff valve is connected in parallel between source output end and 3-position 4-way air operated reversing valve input end.
Aforesaid pneumatic crane hook peculiar to vessel hoists inhibiting device, and wherein said two-position three way Pneumatic reversal valve one end is provided with switching contact arm.Described two-position three way Pneumatic reversal valve control mechanism comprises sender steel rope and hoist block, the switching contact arm of described sender steel rope upper end and two-position three way Pneumatic reversal valve is hinged, sender steel rope lower end and hoist block hinged, lifting rope through after hoist block with suspension hook upper end thereof.Described two-position three way Pneumatic reversal valve is fixed in the horizontal-extending section of arm upper end, and hoist block is positioned at the upper extreme position that suspension hook on the upside of suspension hook hoists.
The utility model structure is simple, low cost of manufacture, adopt sender steel rope and hoist block composition two-position three way Pneumatic reversal valve control mechanism to suspension hook hoist carry out spacing, when suspension hook rise be raised to upper limit height time, suspension hook top jack-up hoist block, sender steel rope is in relaxed state, the switching contact arm of two-position three way Pneumatic reversal valve is opened under the effect of return spring force, close bi-bit bi-pass change-over valve simultaneously, cut off air motor air inlet path, winch stops operating, and suspension hook stops at upper extreme position.Even if 3-position 4-way hand change over valve is still in the position that hoists, suspension hook also can not hoist.The utility model does not adopt automatically controlled spacing device can realize suspension hook yet and stops at upper extreme position, solves the spacing problem that air hoist machine suspension hook peculiar to vessel hoists under explosion-proof environment, and can be used for portable pneumatic loop wheel machine.
Advantage and disadvantage of the present utility model, by for illustration and explanation for the non-limitative illustration passing through preferred embodiment below, these embodiments, only provide as an example with reference to accompanying drawing.
Accompanying drawing explanation
Fig. 1 is hydraulic schematic diagram of the present utility model;
Fig. 2 is the structural representation that the utility model is arranged on pneumatic loop wheel machine arm top.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As depicted in figs. 1 and 2, the utility model comprises winch 1, air motor 2,3-position 4-way hand change over valve 3, bi-bit bi-pass Pneumatic reversal valve 4, two-position three way Pneumatic reversal valve 5 and two-position three way Pneumatic reversal valve control mechanism 6, air motor output shaft is connected with winch 1, lifting rope 11 is wrapped on winch 1, and its lower end is connected with suspension hook 7.3-position 4-way air operated reversing valve 3 liang of mouths 31 are connected with air motor 2 two ends respectively by gas line 8.Source output end 9 is connected with the input end 32 of 3-position 4-way air operated reversing valve 3 by bi-bit bi-pass Pneumatic reversal valve 4, the exhaust side 33 of 3-position 4-way air operated reversing valve 3, the exhaust side 51 of two-position three way Pneumatic reversal valve 5 communicate with noise silencer 20 respectively, greatly can reduce the howling be vented.Source output end 9 is also connected with two-position three way Pneumatic reversal valve input end 52, and two-position three way Pneumatic reversal valve mouth 53 is connected with the gas control end 41 of bi-bit bi-pass Pneumatic reversal valve 4, and two-position three way Pneumatic reversal valve control mechanism 6 is arranged on the upside of suspension hook 7.Shutoff valve 10 is connected in parallel between the input end 32 of source output end 9 and 3-position 4-way hand change over valve 3, shutoff valve 10 open rear as bypass gas circuit make source output end 9 output squeezing air by commutation after 3-position 4-way hand change over valve 3 drive air motor 2 to reverse, winch 1 reverses, and suspension hook 7 declines.
Two-position three way Pneumatic reversal valve control mechanism 6 comprises sender steel rope 61 and hoist block 62, two-position three way Pneumatic reversal valve 5 right-hand member is provided with and switches contact arm 51, the switching contact arm 51 of sender steel rope 61 upper end and two-position three way Pneumatic reversal valve 5 right-hand member is hinged, sender steel rope 61 lower end and hoist block 62 hinged, lifting rope 11 is through hoist block 62 and suspension hook 7 upper end thereof.As shown in Figure 2, two-position three way Pneumatic reversal valve 5 is fixed in the horizontal-extending section 101 of arm 100 upper end, the length of adjustment sender steel rope 61, the upper extreme position making hoist block 62 be positioned at the suspension hook on the upside of suspension hook 7 to hoist.
Working process of the present utility model is as follows:
When 7, suspension hook is raised to upper limit height, its top jack-up hoist block 62, the sender steel rope 61 that original lifted weight block 62 is strained now is in relaxed state, the switching contact arm 51 of two-position three way Pneumatic reversal valve 5 right-hand member is switched to the right position of unlatching under the effect of return spring force, the pressurized air exported from the mouth 53 of two position three way directional control valve 5 is by the gas control end 41 of bi-bit bi-pass Pneumatic reversal valve 4, promote bi-bit bi-pass Pneumatic reversal valve 4 valve core and be switched to left position, cut off the air inlet path of air motor 2, winch 1 stops operating, and suspension hook 7 stops at upper extreme position.Even if 3-position 4-way hand change over valve 3 is still in the position that hoists, suspension hook 7 also can not hoist.
Then open shutoff valve 10 and connect bypass gas circuit, handle the position that 3-position 4-way hand change over valve 3 valve core is switched to suspension hook 7 decline, the pressurized air that source output end 9 exports is walked around bi-bit bi-pass Pneumatic reversal valve 4 and is driven air motor 2 to reverse by 3-position 4-way hand change over valve 3, winch 1 reverses, and suspension hook 7 declines.Suspension hook 7 top departs from hoist block 62, sender steel rope 61 lifted weight block 62 is strained and is pulled the switching contact arm 51 of two-position three way Pneumatic reversal valve 5 right-hand member, the valve core of two-position three way Pneumatic reversal valve 5 is made to be switched to the left position of closedown, cut off the compressed air channel of the gas control end 41 of bi-bit bi-pass Pneumatic reversal valve 4, bi-bit bi-pass Pneumatic reversal valve 4 valve core is switched to left position, then will close shutoff valve 10, complete a working cycle.The utility model adopts pneumatic circuit to realize suspension hook 7 and stops at upper extreme position, solves the spacing problem that air hoist machine suspension hook peculiar to vessel hoists under explosion-proof environment.
In addition to the implementation, the utility model can also have other embodiments, and the technical scheme that all employings are equal to or equivalent transformation is formed, all drops in the protection domain of the utility model requirement.
Claims (5)
1. pneumatic crane hook peculiar to vessel hoists an inhibiting device, and comprise winch, air motor and 3-position 4-way hand change over valve, air motor output shaft is connected with winch, and lifting rope is wrapped on winch, and lifting rope lower end is connected with suspension hook; 3-position 4-way air operated reversing valve two mouth is connected with air motor two ends respectively by gas line; It is characterized in that, also comprise bi-bit bi-pass Pneumatic reversal valve, two-position three way Pneumatic reversal valve and two-position three way Pneumatic reversal valve control mechanism, source output end is connected with 3-position 4-way air operated reversing valve input end by bi-bit bi-pass Pneumatic reversal valve, source output end is also connected with two-position three way Pneumatic reversal valve input end, two-position three way Pneumatic reversal valve mouth is connected with bi-bit bi-pass Pneumatic reversal valve gas control end, and two-position three way Pneumatic reversal valve control mechanism is arranged on the upside of suspension hook.
2. pneumatic crane hook peculiar to vessel as claimed in claim 1 hoists inhibiting device, and it is characterized in that, shutoff valve is connected in parallel between source output end and 3-position 4-way air operated reversing valve input end.
3. pneumatic crane hook peculiar to vessel as claimed in claim 1 hoists inhibiting device, and it is characterized in that, described two-position three way Pneumatic reversal valve one end is provided with switching contact arm.
4. the peculiar to vessel pneumatic crane hook as described in claim 1 or 3 hoists inhibiting device, it is characterized in that, described two-position three way Pneumatic reversal valve control mechanism comprises sender steel rope and hoist block, the switching contact arm of described sender steel rope upper end and two-position three way Pneumatic reversal valve is hinged, sender steel rope lower end and hoist block hinged, lifting rope through after hoist block with suspension hook upper end thereof.
5. pneumatic crane hook peculiar to vessel as claimed in claim 4 hoists inhibiting device, and it is characterized in that, described two-position three way Pneumatic reversal valve is fixed in the horizontal-extending section of arm upper end, and the hoist block suspension hook be positioned on the upside of suspension hook hoists upper extreme position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520304662.8U CN204675705U (en) | 2015-05-13 | 2015-05-13 | Pneumatic crane hook peculiar to vessel hoists inhibiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520304662.8U CN204675705U (en) | 2015-05-13 | 2015-05-13 | Pneumatic crane hook peculiar to vessel hoists inhibiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204675705U true CN204675705U (en) | 2015-09-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520304662.8U Withdrawn - After Issue CN204675705U (en) | 2015-05-13 | 2015-05-13 | Pneumatic crane hook peculiar to vessel hoists inhibiting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204675705U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104843601A (en) * | 2015-05-13 | 2015-08-19 | 南京中船绿洲机器有限公司镇江船舶辅机厂 | Lifting limit device of marine pneumatic hoist hook |
-
2015
- 2015-05-13 CN CN201520304662.8U patent/CN204675705U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104843601A (en) * | 2015-05-13 | 2015-08-19 | 南京中船绿洲机器有限公司镇江船舶辅机厂 | Lifting limit device of marine pneumatic hoist hook |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150930 Effective date of abandoning: 20160914 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |