CN101055056A

CN101055056A - Rotary valve type oil supplier

Info

Publication number: CN101055056A
Application number: CN 200710106052
Authority: CN
Inventors: 曹辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-05-31
Filing date: 2007-05-31
Publication date: 2007-10-17

Abstract

A rotary valve type oil feeder includes an oil feeder body, a valve core and a piston. The oil feeder body includes a valve cavity and a piston cavity. The valve cavity is disposed with an oil inlet and two outlets; one side of the piston in the piston cavity is an oil input cavity connected to one outlet of the valve cavity, another side is an oil output cavity connected to another outlet, the oil output cavity is disposed with an oil outlet. The valve core is disposed with a through hole in radial direction and has a deflexion angle, and is disposed with a side wall groove or oil through hole in axial direction. The valve core is driven to rotate; the oil inlet will connect to one outlet through the radial through hole of the valve core and cut off with another outlet; when the drive stops or the valve core is reverse acted to reset, the oil inlet will cut off with the two outlets, and the two outlets are connected through the side wall groove or oil through hole of the valve core. The piston or the oil feeder body can be mounted with oil regulating and detecting devices. The oil feeder is novel in structure, has no leakage in work, can prevent environment pollution, has broad application range, can adjust the oil feeding amount of each lubricant point and set the cycle for each lubricant point, can satisfy different lubricant requirement for each point of a centralized lubricating system and has broad application foreground.

Description

Rotary valve type oil supplier

Technical field

The present invention relates to a kind of oilier, especially a kind of rotary valve type oil supplier that is used for supplying lubricating oil fat.

Background technique

For guaranteeing the accurately normal feed of lubricant grease in the lubrication system, mostly existing solution is to adopt centralized lubrication.At present, centralized lubrication is commonly used lubricating systems such as single line, two-wire, oil gas, and its main components and parts are single-line type oilier, two-wire system oilier, laddering oilier etc.But in actual applications, no matter be single-line type, two-wire system or laddering oilier, all can not carry out STOCHASTIC CONTROL, require accurately to calculate the grease amount of every of system, be difficult for adjusting in actual the use, and the lubrication interval of every of system must be identical in when design; There is the little defective of Applicable scope in the single-line type oilier, is only applicable to that the viscosity grade is low, the fluid of good fluidity, and fluid, the semifluid medium of or mobile difference high for the viscosity grade then can't carry out normal feed; And the structure more complicated of two-wire system oilier and laddering oilier, requirement on machining accuracy height, rate of fault height in the use; The parallel alternately fuel feeding of necessary two main lines of two-wire system oilier, the pipeline complexity; In a single day break down during laddering oilier is used, accurately difficulty is overhauled in failure judgement point position.Novel valve-type oil feeder can address the above problem, but spool is prone to leakage in its running, causes environmental pollution easily.

Summary of the invention

The present invention is in order to solve problem and the defective that the grease supply exists in the existing centralized lubrication system, by experimental study, a kind of novel rotary valve type oil supplier is provided, its novel structure, do not have in the working procedure and leak, prevent the pollution of the environment, applied widely, can satisfy the difference of centralized lubrication system each point and lubricate needs.

Technological scheme of the present invention is as follows:

Rotary valve type oil supplier comprises oil supply body, spool and piston.The oil supply body contains valve pocket and piston cavity, and valve pocket is established a filler opening and two outlets; Piston cavity piston one side is an oil suction chamber, is communicated with valve pocket one outlet, and the piston opposite side is communicated with another outlet of valve pocket for going out oil pocket, goes out oil pocket and sets out hydraulic fluid port.Spool rotates in valve pocket, radially is provided with through hole, is communicated with the outlet of filler opening and oil suction chamber one side, behind the valve core reset, the sidewall channels that are communicated with two outlets are axially arranged, or be provided with the oil throughs that are communicated with two outlets, this oil through is to be made of axial bore is communicated with outer side wall with it radial hole; Establish reposition element on the piston.

After driving valve core rotation, valve pocket and spool are in the working position, filler opening is connected with the radial hole of an outlet by spool, end with another outlet, at this moment the lubricant grease of filler opening enters the oil suction chamber of piston one side by the radial hole of spool, the promotion piston moves, the compression reposition element, and the lubricant grease that goes out in the oil pocket enters pipeline to the operation point by oil outlet; Driving stops valve core reset, be in stop position, filler opening and two outlets all end, two outlets are connected by the sidewall channels or the oil through of spool, the oil suction chamber of piston both sides is connected with going out oil pocket, and the lubricant grease of oil suction chamber enters out oil pocket by the sidewall channels or oil through connection two outlets of spool.

Spool can by electronic, surge, pneumatic, motor-driven, manual or Electromagnetic Drive slides in valve pocket.

Piston or oil supply body can be provided with separately to oil controller and detection device.

This oilier is applicable to the lubricant grease in various different pressures, the viscosity scope.

This rotary valve type oil supplier, novel structure, do not have in the work and leak, avoid environmental pollution, applied widely, be provided with to behind oil controller and the detection device, can adjust at random each lubricating point grease delivery volume, lubrication interval to every is set at random, can satisfy the lubricated needs of difference of centralized lubrication system each point, has a extensive future.

Description of drawings

Fig. 1 is the working state schematic representation of first kind of form rotary valve type oil supplier

Fig. 2 is the halted state schematic representation of first kind of form rotary valve type oil supplier

Fig. 3 is the working state schematic representation of another kind of form rotary valve type oil supplier

Fig. 4 is the halted state schematic representation of another kind of form rotary valve type oil supplier

Embodiment

Introduce embodiments of the invention below in conjunction with accompanying drawing.

This rotary valve type oil supplier mainly is made up of oil supply body 1, spool 2 and piston 5 etc.

Oil supply body 1 contains valve pocket 3 and piston cavity 4.Valve pocket 3 is established an oil inlet P and two outlets A, B.Piston cavity 4 inner carriers 5 one sides are

oil suction chamber

4a, and 3 outlet A are communicated with valve pocket, and piston 5 opposite sides are for going out

oil pocket

4b, and 3 outlet B are communicated with valve pocket, go out oil pocket 4b and set out hydraulic fluid port C.Oil supply body 1 contained valve pocket 3 and piston cavity 4 also can discretely be provided with, and the connection of the two is connected by pipeline.

The structure of spool 2 has two kinds of form: Fig. 1, spool 2 shown in Figure 2 radially to establish through hole 2a, is communicated with an oil inlet P and an outlet A; Behind the deflection several angle, spool 2 axially has the sidewall channels 2b that is communicated with two outlet A, B.

Fig. 3, spool 2 shown in Figure 4 are radially also established through hole 2a, are communicated with an oil inlet P and an outlet A; With preceding a kind of different is, behind the deflection several angle, 2 of spools are provided with the oil through 2c that is communicated with two outlet A, B, and oil through 2c is made of axial blind hole is communicated with outer side wall with it radial hole.

Piston 5 step places can be provided with Returnning spring 6.

The external drive unit (not shown) of this rotary valve type oil supplier, can adopt electronic, surge, drive unit such as pneumatic, motor-driven or manual.

The working principle of rotary valve type oil supplier is as follows: when lubrication system works, drive unit drives spool 2 and rotates arrival working position (seeing Fig. 1 or Fig. 3), the lubricant grease of oil inlet P enters oil suction chamber 4a by the radial direction through hole 2a of spool 2 with outlet A, promoting piston 5 moves, pressure spring 6, the lubricant grease that goes out among the oil pocket 4b enters pipeline to the operation point by oil outlet C.

Drive unit stops action or counteragent, spool 2 resets and is in stop position (seeing Fig. 2 or Fig. 4), oil inlet P is ended with outlet A, B, outlet A, B are interconnected by the sidewall channels 2b (see figure 2) or the oil through 2b (see figure 4) of spool, make oil suction chamber 4a and go out oil pocket 4b and connect, spring 6 resets, and promotes piston 5 and oppositely moves, and the lubricant grease in the oil suction chamber 4a enters out oil pocket 4b by the sidewall channels 2b (see figure 2) or the oil through 2b (see figure 4) of outlet A, spool with outlet B.

Piston 5 or oil supply body 1 are provided with separately to oil mass and regulate and the detection device (not shown), so that the lubricant grease amount that goes out oil pocket 4b discharge is adjusted, and carry out oil supply and detect.

Claims

1. rotary valve type oil supplier is characterized in that, it comprises oil supply body, spool and piston,

The oil supply body contains valve pocket and piston cavity, and valve pocket is established a filler opening and two outlets, and piston cavity piston one side is an oil suction chamber, is communicated with valve pocket one outlet, and the piston opposite side is communicated with another outlet of valve pocket for going out oil pocket, goes out oil pocket and sets out hydraulic fluid port;

Spool rotates in valve pocket, radially is provided with through hole, is communicated with the outlet of filler opening and oil suction chamber one side, behind the valve core reset, the sidewall channels that are communicated with two outlets are axially arranged, or be provided with the oil throughs that are communicated with two outlets, this oil through is to be made of axial bore is communicated with outer side wall with it radial hole;

Establish reposition element on the piston.

2. rotary valve type oil supplier according to claim 1 is characterized in that, after the valve core rotation, valve pocket and spool are in the working position, and filler opening is connected with the radial direction through hole of an outlet by spool, ends with another outlet; Valve core reset is in stop position, and filler opening and two outlets all end, and two outlets are connected by the sidewall channels or the oil through of spool.

3. rotary valve type oil supplier according to claim 1 is characterized in that being provided with on the piston Returnning spring.

4. rotary valve type oil supplier according to claim 1 and 2 is characterized in that, spool by electronic, surge, pneumatic, motor-driven, manual or Electromagnetic Drive rotates in valve pocket.

5. rotary valve type oil supplier according to claim 1 is characterized in that, piston or oil supply body are established in addition to oil controller and detection device.