CN203051281U - XF-E18L limit valve - Google Patents
XF-E18L limit valve Download PDFInfo
- Publication number
- CN203051281U CN203051281U CN 201320028237 CN201320028237U CN203051281U CN 203051281 U CN203051281 U CN 203051281U CN 201320028237 CN201320028237 CN 201320028237 CN 201320028237 U CN201320028237 U CN 201320028237U CN 203051281 U CN203051281 U CN 203051281U
- Authority
- CN
- China
- Prior art keywords
- valve
- steel ball
- limit valve
- return
- limit
- 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 - Fee Related
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Abstract
The utility model discloses an XF-E18L limit valve which comprises a main body (2), a rear end (1), a valve core (5), a screw (6), an oil return pipe connector (7) and an oil inlet pipe connector (8). The XF-E18L limit valve is characterized in that the limit valve is a steel ball (4), two sides of the steel ball are respectively in contact with a return spring (3) and the valve core, an adjusting nut (9) is arranged on the screw, and two installation holes on the same perpendicular line are arranged in the valve body. The XF-E18L limit valve uses the steel ball as the valve core, uses the spring to return and align and has the advantages of being good alignment, reliable in return and the like compared with an existing conical-valve type valve core. The XF-E18L limit valve uses the adjustable screw, so that a user can set cargo tank lifting angles be self according to vehicle type requirements to save a lot of cost for the user and enable parts to be convenient to replace. The XF-E18L limit valve is vertically installed, uses two parallel bolt holes and has the advantages of being convenient to install, reliable to install and the like.
Description
Technical field
The utility model relates to a kind of hydraulic system oil circuit control unit, especially a kind ofly can more effective, safer, more stably guarantee each executive component of hydraulic circuit, improves the XF-E18L limited valve in the working life of each executive component of hydraulic pressure.
Background technique
Limited valve is to guarantee that dump truck unloads the important hydraulic control device of thing safely automatically; hydraulic oil is time contact limited valve by maximum angle of swing; limited valve was opened and was formed the loop this moment; hydraulic jack no longer moves, and guarantees the dump truck safe operation, reaches to regulate container lifting angle; the protection hydraulic jack; improve oil pump working life, reduce engine operation, reduce fuel consume.Existing limited valve shaft length is fixed, so versatility is relatively poor, and its Bian is undesirable with cone valve type spool centering performance simultaneously, return reliability deficiency.
The model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art; provide a kind of dump truck more can safe operation; the protection hydraulic jack; improve oil pump working life; reduce engine operation, protect user's personal safety as well as the property safety simultaneously, versatility is good; easy installation and reliable, can improve the XF-E18L limited valve of the market competitiveness.The purpose of this utility model realizes by following technical proposals: the utility model comprises main body, rear end, spool, screw rod, oil returning pipe joint, inlet connector, it is characterized in that limited valve is steel ball, touch mutually with return spring and spool respectively the steel ball both sides, screw rod is provided with adjusting nut, and valve body is provided with two at the mounting hole of same vertical line.
Compared with prior art, the utility model limited valve adopts steel ball as spool, adopts spring return centering, more in the past the cone valve type spool have neutrality good, advantage such as return is reliable.Limit switches adopts adjustable adjusting screw rod, and the user can set up container lifting angle on their own according to the vehicle needs; For the user save a large amount of user costs and change component convenient; The utility model limited valve is vertical the installation, adopts two parallel bolts hole, has to be convenient to install and install characteristics such as reliable.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Embodiment 1, as shown in Figure 1, the utility model comprises main body 2, rear end 1, spool 5, screw rod 6, oil returning pipe joint 7, inlet connector 8, it is characterized in that limited valve is steel ball 4, touch mutually with return spring 3 and spool respectively the steel ball both sides, and screw rod is provided with adjusting nut 9, and valve body is provided with two at the mounting hole of same vertical line.The rear end adopts round steel to be processed into worm structure, and main body adopts Q345 material Milling Process to form, and at each oil through of main body processing, spool adopts 40Cr materials processing to form surface roughness Ra 0.4 then.Adjusting screw rod has been equipped with corresponding adjusting nut, can realize the height regulatory function, is applicable to the vehicle of different heights.Oil returning pipe joint 7 is connected with the automobile hydraulic fuel tank, inlet connector 8 adopts threeway to connect hydraulic jack and gear pump, limited valve is fixed on hydraulic jack and surveys the below, hydraulic oil enters hydraulic jack by tee union one end under the effect of gear pump, the other end enters limited valve, but because the limited valve steel ball is in closed condition, so hydraulic oil just can only enter oil cylinder, promote the oil cylinder piston operation.When hydraulic jack rotated to maximum angular, cylinder support compressing adjusting screw rod drove valve core movement, and this moment, steel ball was backed down by spool, and hydraulic oil just directly flows back to fuel tank from oil returning pipe joint by inlet connector, and hydraulic jack no longer moves.The safe and effective operation of hydraulic jack has been protected in the invention of this position-limit mechanism, improves oil pump working life, reduces engine operation, protects user's personal safety as well as the property safety simultaneously.
Claims (1)
1. XF-E18L limited valve, comprise main body (2), rear end (1), spool (5), screw rod (6), oil returning pipe joint (7), inlet connector (8), it is characterized in that: limited valve is steel ball (4), touch mutually with return spring (3) and spool respectively the steel ball both sides, screw rod is provided with adjusting nut (9), and valve body is provided with two at the mounting hole of same vertical line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028237 CN203051281U (en) | 2013-01-21 | 2013-01-21 | XF-E18L limit valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028237 CN203051281U (en) | 2013-01-21 | 2013-01-21 | XF-E18L limit valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203051281U true CN203051281U (en) | 2013-07-10 |
Family
ID=48734239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320028237 Expired - Fee Related CN203051281U (en) | 2013-01-21 | 2013-01-21 | XF-E18L limit valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203051281U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122886A (en) * | 2013-01-21 | 2013-05-29 | 四川重汽王牌兴城液压件有限公司 | XF - E18L limit valve |
-
2013
- 2013-01-21 CN CN 201320028237 patent/CN203051281U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122886A (en) * | 2013-01-21 | 2013-05-29 | 四川重汽王牌兴城液压件有限公司 | XF - E18L limit valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20160121 |
|
| EXPY | Termination of patent right or utility model |