CN202418069U - Triple-connection pilot valve for loader - Google Patents
Triple-connection pilot valve for loader Download PDFInfo
- Publication number
- CN202418069U CN202418069U CN2011204795207U CN201120479520U CN202418069U CN 202418069 U CN202418069 U CN 202418069U CN 2011204795207 U CN2011204795207 U CN 2011204795207U CN 201120479520 U CN201120479520 U CN 201120479520U CN 202418069 U CN202418069 U CN 202418069U
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- CN
- China
- Prior art keywords
- pilot valve
- handle
- valve
- monolever
- loader
- 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
A triple-connection pilot valve for a loader belongs to the technical field of accessories of loaders and comprises a single-handle pilot valve and a plate type pilot valve. The single-handle pilot valve and the plate type pilot valve are connected by a middle valve and fixed onto the loader by mounting plates, a double-control handle is arranged on the single-handle pilot valve, a single-control handle is disposed on the plate type pilot valve, a universal joint is arranged in the single-handle pilot valve, an ejector rod movably connected with the single-handle pilot valve is arranged below the double-control handle, an electromagnet is arranged in the middle of the ejector rod, the bottom of the ejector rod is connected with a contact, a resistance structure is fittingly disposed at the bottom of the contact, the single-control handle of the plate type pilot valve is connected with a hinge joint, a pressure reducing valve device is fittingly disposed below the hinge joint, and the triple-connection pilot valve is provided with an oil inlet port P, an oil return port T and six pilot working ports. The single-handle pilot valve is structurally combined with the plate type pilot valve, operation is convenient and flexible, the occupied space is small, pipelines are arranged conveniently, cost is reduced, the resistance device is additionally disposed on the single-handle structure, accordingly, the hand feeling is obvious when the handle moves close to a final point of the stroke, and misoperation is prevented.
Description
Technical field
The utility model belongs to loader accessory technical field, is specifically related to a kind of flexible to operation, loader of occupying little space, being convenient to line arrangement and cost savings with three pilot valves.
Background technique
At present; The following two kinds of structural types of the most of employing of three pilot valves that adopt on the domestic loader pilot system of continuing to use for many years: first kind is that three one chip pilot valves combine; Three structures that handle is arranged in order; A handle is controlled a corresponding multi-way valve action, shovels and corresponding miscellaneous function with the up-down and the turning over of scraper bowl of realizing loading arm.Also a hydraulic fluid port must be arranged in addition on this pilot valve, cooperate multi-way valve could realize the float function of loader together, more than therefore between pilot valve and multi-way valve a pipeline, not only increased cost and taken the space again.The secondth, separate use separately by a monolever pilot valve and a chip pilot valve, this structure must have two cover oil-feeds and two cover return lines, and cost is also higher, and it is also big to take up room.
The model utility content
To the problems referred to above that exist in the existing technology, the purpose of the utility model is to provide a kind of flexible to operation, loader of occupying little space, being convenient to line arrangement and cost savings with three pilot valves.
Described a kind of loader is with three pilot valves; Comprise monolever pilot valve and chip pilot valve, be equipped with two control handles on the described monolever pilot valve, be equipped with single control handle on the chip pilot valve; It is characterized in that described monolever pilot valve is connected by center valve body with the chip pilot valve; And be fixed on the loader through mounting plate, be provided for the universal joints that convenient two control handles rotate in the described monolever pilot valve, be equipped with the push rod that flexibly connects with the monolever pilot valve under two control handles; The push rod middle part is equipped with electromagnet; Described push rod bottom is connected with contact, and the contact bottom is equipped with resistance structure, and single control handle of described chip pilot valve is connected with articulated; Be equipped with two relief valve units below the described articulated, described three pilot valves are provided with oil inlet P, oil return inlet T and 6 pilot valve working holes.
Described a kind of loader is with three pilot valves; It is characterized in that described resistance structure comprises the spring seat that is arranged on the contact bottom; Be provided with two on the spring seat between the upper and lower at a distance from the spring that is provided with; Described two springs are provided with big spring outward, and described big spring is located and is arranged on the monolever pilot valve by setting sleeve.
Described a kind of loader is characterized in that with three pilot valves described push rod is equipped with the location magnetic patch that can be connected with electromagnet magnetic.
Above-mentioned a kind of loader comprises by center valve body connecting, and is fixed on monolever pilot valve and chip pilot valve on the loader through mounting plate with three pilot valves; Be equipped with two control handles on the monolever pilot valve; Be equipped with single control handle on the chip pilot valve, be provided for the universal joint that convenient two control handle rotates in the monolever pilot valve, be equipped with the push rod that flexibly connects with the monolever pilot valve under two control handles; The push rod middle part is equipped with electromagnet; The push rod bottom is connected with contact, and the contact bottom is equipped with resistance structure, and single control handle of chip pilot valve is connected with articulated; Be equipped with two relief valve units below the articulated, described three pilot valves are provided with oil inlet P, oil return inlet T and 6 pilot valve working holes.The utility model is through with monolever pilot valve structure and chip pilot valve textural association together, and is flexible to operation, occupies little space; Be convenient to line arrangement, the few cost of joint, and on the monolever structure, increased resistance device; Obvious feel is arranged when making the handle stroke near terminal point, prevent misoperation.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the A-A sectional drawing of the monolever pilot valve of the utility model Fig. 1;
Fig. 3 is the B-B sectional drawing of the chip pilot valve of the utility model Fig. 1;
Fig. 4 is an A place enlarged view among the utility model Fig. 2;
Fig. 5 is the hydraulic schematic diagram of the utility model.
Among the figure: 2-mounting plate, 3-monolever pilot valve, 4-center valve body, 5-connecting bolt, 6-chip pilot valve; The two control of 1-handle, 8-electromagnet, 9-universal joint, 10-contact; The 11-articulated, 12-relief valve unit, 13-spring seat, 14-setting sleeve; The 15-big spring, the 16-push rod, 17-locatees magnetic patch, 18-spring.
Embodiment
Below in conjunction with Figure of description and embodiment the utility model is done further to describe:
Shown in Fig. 1-5, a kind of loader comprises by center valve body 4 connecting with three pilot valves; And be fixed by bolts to monolever pilot valve 3 and chip pilot valve 6 on the loader through mounting plate 2, and be equipped with two control handles 1 on the described monolever pilot valve 3, be used to control the multi-way valve scraper bowl and join and the swing arm couplet; Be equipped with single control handle 1 on the chip pilot valve 6, be used to control auxiliary the couplet, be provided for the universal joint 9 that convenient two control handle 1 rotates in the monolever pilot valve 3; Two control handles 1 can all around rotate around universal joint 9, and two control handles are equipped with the push rod 16 that flexibly connects with monolever pilot valve 3 for 1 time, and push rod 16 middle parts are equipped with electromagnet 8; Push rod 16 is equipped with the location magnetic patch 17 that can be connected with electromagnet magnetic; When bidirectional handle 1 when pressing down, the location magnetic patch 17 held by electromagnet 8, the location.Push rod 16 bottoms are connected with contact 10, and contact 10 bottoms are equipped with resistance structure, and described resistance structure comprises the spring seat 13 that is arranged on contact 10 bottoms; Be provided with two on the spring seat 13 between the upper and lower at a distance from the spring 18 that is provided with, described two springs, the 18 outer big springs 15 that are provided with, described big spring 15 is located and is arranged on the monolever pilot valve 3 by setting sleeve 14; When bidirectional handle 1 was pressed downwardly onto to a certain degree, spring 18 was depressed into to a certain degree, pressed big spring 15 then; Need bigger power this moment, and obvious feel is arranged, and this moment, the handle stroke was near terminal point; Can shut-down operation, prevent misoperation; Single control handle 1 of described chip pilot valve 6 is connected with articulated 11, is equipped with two relief valve units 12 below the articulated 11, and described three pilot valves are provided with oil inlet P, oil return inlet T and 6 pilot valve working holes.
Shown in Fig. 1-5, monolever pilot valve 3 is provided with oil inlet P, oil return inlet T, and monolever guide working hole 1,2,3,4, chip pilot valve 6 is provided with guide's working hole 5 and 6, and wherein working hole 1,3 control multi-way valve scraper bowls join; 2,4 mouthfuls of control swing arms join; 5,6 mouthfuls of auxiliary couplets of control.The hydraulic fluid port of whole three valves all is arranged on the bottom, and inner oil duct all adopts machining, adopts the sealing of 0 type circle between the valve body, and the body movable sealing place adopts Parker C1 type Sealing.This valve cardinal principle is the direct acting pressure principle, is made up of 6 reduction valve, and working hole pressure is proportional with the deflection angle of handle; Setting sleeve 14 and big spring 15 in the monolever structure, have been increased; When handle deflected near final position, spring seat 13 contacted with setting sleeve 14, continued deflection like handle; Then setting sleeve compression big spring 15 increases steering force.
The utility model is through adopting above-mentioned technology, and following beneficial effect is arranged: 1) monolever structure and slice structure are combined integrated, and is flexible to operation, occupy little space, be convenient to line arrangement, joint cost less; 2) the valve inner oil duct all adopts machining, avoids unfavorable factors such as inner scab; 3) be with resistance structure in the monolever structure, obvious feel arranged during near terminal point, prevent misoperation at the handle stroke; 4) adopt gimbal structure, the rotatable 360 ° of no clamping stagnations of monolever; 5) each outer oil-collecting hole all in the valve body bottom, is convenient to line arrangement.
Claims (3)
1. a loader is with three pilot valves; Comprise monolever pilot valve (3) and chip pilot valve (6); Be equipped with two control handles (1) on the described monolever pilot valve (3); Be equipped with single control handle (1) on the chip pilot valve (6), it is characterized in that described monolever pilot valve (3) is connected by center valve body (4) with chip pilot valve (6), and be fixed on the loader through mounting plate (2); Be provided for the universal joint (9) that convenient two control handles (1) rotate in the described monolever pilot valve (3); Be equipped with the push rod (16) that flexibly connects with monolever pilot valve (3) under two control handles (1), push rod (16) bottom is equipped with electromagnet (8), and described push rod (16) bottom is connected with contact (10); Contact (10) bottom is equipped with resistance structure; Single control handle (1) of described chip pilot valve (6) is connected with articulated (11), is equipped with two relief valve units (12) below the described articulated (11), and described three pilot valves are provided with oil inlet P, oil return inlet T and 6 pilot valve working holes.
2. a kind of loader according to claim 1 is with three pilot valves; It is characterized in that described resistance structure comprises the spring seat (13) that is arranged on contact (10) bottom; Two separated between the upper and lower return springs and pressure adjusting spring (18) are set on the spring seat (13); Big spring (15) is set outside described two springs (18), and described big spring (15) is located and is arranged on the monolever pilot valve (3) by setting sleeve (14).
3. a kind of loader according to claim 1 is characterized in that with three pilot valves described push rod (16) is equipped with the location magnetic patch (17) that can be connected with electromagnet magnetic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204795207U CN202418069U (en) | 2011-11-28 | 2011-11-28 | Triple-connection pilot valve for loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204795207U CN202418069U (en) | 2011-11-28 | 2011-11-28 | Triple-connection pilot valve for loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202418069U true CN202418069U (en) | 2012-09-05 |
Family
ID=46742839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204795207U Expired - Lifetime CN202418069U (en) | 2011-11-28 | 2011-11-28 | Triple-connection pilot valve for loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202418069U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214410A (en) * | 2014-07-11 | 2014-12-17 | 柳州柳工液压件有限公司 | Manual pressure-reducing type pilot valve |
| CN104405714A (en) * | 2014-12-01 | 2015-03-11 | 上海立新液压有限公司 | Pilot control valve |
-
2011
- 2011-11-28 CN CN2011204795207U patent/CN202418069U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214410A (en) * | 2014-07-11 | 2014-12-17 | 柳州柳工液压件有限公司 | Manual pressure-reducing type pilot valve |
| CN104405714A (en) * | 2014-12-01 | 2015-03-11 | 上海立新液压有限公司 | Pilot control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |