CN215298031U

CN215298031U - Adjustable oil level controller

Info

Publication number: CN215298031U
Application number: CN202121140390.4U
Authority: CN
Inventors: 张碧波
Original assignee: Xinchang Taipulai Electromechanical Co ltd
Current assignee: Xinchang Taipulai Electromechanical Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2021-12-24
Anticipated expiration: 2031-05-26

Abstract

The invention provides an adjustable oil level controller, which comprises a cylinder, wherein an upper end cover is arranged at the upper end of the cylinder, and a lower end cover is arranged at the lower end of the cylinder; the upper end cover is provided with an oil way interface, a valve block is arranged in the oil way interface, and an adjusting mechanism for adjusting the valve block is arranged outside the oil way interface; the lower end of the valve block is provided with a floating ball mechanism which drives a valve needle arranged in the valve block to carry out oil circuit on-off control; and a sealing element is arranged between the valve block and the inner wall of the oil way connector. The invention has simple structure, reasonable design and compact layout, can conveniently realize the accurate adjustment of the ascending or descending of the floating ball mechanism by adjusting the adjusting nut so as to achieve the aim of adjusting the liquid level, has simple adjusting operation and stable process, can lock the position of the floating ball mechanism by utilizing the locking nut, and has high reliability when in use.

Description

Adjustable oil level controller

Technical Field

The invention belongs to the technical field of refrigeration equipment and systems, and particularly relates to an adjustable oil level controller.

Background

During operation of the refrigeration system, the oil level in the crankcase of the compressor varies due to the different operating conditions of the different units. For a double-stage compression system, a system with complex operation conditions, a system with different evaporation temperatures and the like, for a unit of which the oil level needs to be adjusted under different suction pressures, an unadjustable oil level controller with the corresponding oil level height needs to be replaced if the oil level is changed too much, so that the operation cost is increased, the reserve quantity of spare parts is increased, and the unit is possibly damaged when the oil level is not changed in time. In an oil level controller, the control of the liquid level is of great importance, and a mechanical oil level controller adopts a floating ball as a power source, the floating ball floats by utilizing the rising of the liquid level, and the rising of the floating ball drives a valve needle to be tightly attached to an oil inlet of a valve block to complete the closing of an oil way. When the liquid level is reduced, the floating ball descends to drive the valve needle and the valve block to be separated, and the oil way is opened. The oil level height is adjusted, the key problem that will solve is exactly the lift of adjustment whole floater mechanism, among the prior art, oil level control structure is complicated, and it is loaded down with trivial details to adjust operation process, is difficult to realize steady, accurate regulation action. Therefore, improvements are needed.

Disclosure of Invention

In view of the above, the present invention provides an adjustable oil level controller to overcome the defects in the prior art.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

an adjustable oil level controller comprises a cylinder, wherein an upper end cover is arranged at the upper end of the cylinder, and a lower end cover is arranged at the lower end of the cylinder;

the upper end cover is provided with an oil way interface, a valve block is arranged in the oil way interface, and an adjusting mechanism for adjusting the valve block is arranged outside the oil way interface;

the lower end of the valve block is provided with a floating ball mechanism which drives a valve needle arranged in the valve block to carry out oil circuit on-off control; and a sealing element is arranged between the valve block and the inner wall of the oil way connector.

Furthermore, the adjusting mechanism comprises an adjusting nut screwed on the outer side of the oil way interface in a threaded manner, an adjusting groove is formed in the side wall of the oil way interface, a follow-up component is mounted on the adjusting nut, and the follow-up component penetrates through the adjusting groove and is mounted on the valve block.

Further, the follow-up assembly comprises an adjusting follow-up block sleeved on the oil way connector, and the adjusting follow-up block and the valve block are fixed through a connecting pin.

Furthermore, the adjusting groove is axially arranged along the oil way connector, and the connecting pin is in sliding fit with the adjusting groove.

Further, the sealing element comprises a plurality of sealing rings arranged on the valve block.

Furthermore, an inner groove is formed in the lower portion of the adjusting nut, the adjusting follow-up block is located in the inner groove, and the adjusting follow-up block is fixed to the adjusting nut through the clamping piece.

Further, the clamping piece comprises a clamping spring.

Further, a locking nut is mounted above the adjusting nut and screwed on the oil way connector.

Further, the floating ball mechanism comprises a support arranged at the lower part of the valve needle, and a floating ball is arranged at the lower end of the support.

Compared with the prior art, the invention has the following advantages:

the invention has simple structure, reasonable design and compact layout, can conveniently realize the accurate adjustment of the ascending or descending of the floating ball mechanism by adjusting the adjusting nut so as to achieve the aim of adjusting the liquid level, has simple adjusting operation and stable process, can lock the position of the floating ball mechanism by utilizing the locking nut, and has high reliability when in use.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:

FIG. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a cross-sectional view of the present invention with the barrel and lower end cap removed;

fig. 4 is a schematic view of a portion of an adjustment mechanism in an embodiment of the invention.

Detailed Description

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.

An adjustable oil level controller, as shown in fig. 1 to 4, comprises a cylinder body 1, wherein an upper end cover 2 is arranged at the upper end of the cylinder body, and a lower end cover 3 is arranged at the lower end of the cylinder body; normally, a liquid scope 4 and a flange joint base 5 are attached to the cylinder. An oil line interface 6 is installed on the upper end cover, a valve block 7 is installed in the oil line interface, an adjusting mechanism 9 for adjusting the valve block is installed outside the oil line interface, and usually, the part of the upper end of the oil line interface, which extends out of the adjusting mechanism, is used for being installed and connected with a pipeline. The lower end of the valve block is provided with a floating ball mechanism which drives a valve needle 8 arranged in the valve block to carry out oil circuit on-off control; a sealing element 22 is arranged between the valve block and the inner wall of the oil way interface.

In an alternative embodiment, the adjusting mechanism comprises an adjusting nut 14 screwed on the outer side of the oil passage port, and the side wall of the oil passage port is provided with an adjusting groove 10, so that the outer surface of the adjusting nut can be knurled for facilitating the operation so as to improve the surface friction force. And a follow-up component 11 is arranged on the adjusting nut, and the follow-up component penetrates through the adjusting groove to be arranged on the valve block. The adjusting groove is axially arranged along the oil way connector, and usually, the connecting pin is in sliding fit with the adjusting groove, so that the connecting pin is stable in fit with the oil way connector, and the adjusting mechanism and the valve block are guaranteed to have good stability.

By way of example, the follow-up assembly comprises an adjusting follow-up block 12 sleeved on the oil way connector, and the adjusting follow-up block and the valve block are fixed through a connecting pin 13. Specifically, the connecting pin is inserted into the insertion hole of the adjusting follow-up block along the radial direction, and one end of the connecting pin, which penetrates through the adjusting groove inwards, is inserted into the insertion groove of the side wall of the valve block.

Generally, the sealing member includes a plurality of sealing rings mounted on an upper portion (a portion located above the adjustment groove) of the valve block and a plurality of sealing rings mounted on a lower portion (a portion located below the adjustment groove) of the valve block, and the oil passage port is free from leakage at the open groove, and the sealing property between the valve seat and the oil passage port is secured.

In an alternative embodiment, the adjusting nut has an inner groove 15 formed in the lower portion thereof, and the adjusting follow-up block is disposed in the inner groove and fixed to the adjusting nut by a clamping member 16. The jump ring is generally selected for use to chucking spare, when realizing adjusting nut adjustment action from top to bottom, can drive to adjust and follow the piece and remove simultaneously can. Due to the structural design, the adjusting mechanism is compact in structure, small in occupied space and convenient to arrange in an equipment structure.

It should be noted that, adjust and follow up the piece up end and support the lower edge (tank bottom surface) that adjusts the nut inner groovy, the lower terminal surface is by chucking of chucking spare for adjust and follow up the piece and do not have virtual position between adjusting nut, at the regulation liquid level in-process, adjust and follow up piece and adjusting nut synchronization motion, do not have and rock, stability is very high, and it is secure to adjust the accuracy.

Usually, a lock nut 17 is installed above the adjusting nut, the lock nut is screwed on the oil passage interface, and after the lock nut is screwed, the lock nut can abut against the adjusting nut, so that the adjusting nut is prevented from loosening and shifting, and the position of the floating ball mechanism can be locked.

The float mechanism comprises a bracket 18 mounted on the lower part of the valve needle, and a float 19 is mounted on the lower end of the bracket, typically by welding to the underside of the bracket. The floating ball drives the support to move up and down under the action of oil buoyancy, so that the aim of driving the valve needle to move is fulfilled, a liquid passing cavity is arranged in the center of the valve block, the upper end of the liquid passing cavity is communicated with the inner cavity of the oil way connector, a necking is arranged at the lower end of the liquid passing cavity, a tip matched with the necking is arranged at the top end of the valve needle, the valve needle moves upwards, and the tip of the valve needle is matched with the necking to close the liquid passing cavity and complete the action of closing the oil way; when the liquid level is lowered, the floating ball descends to drive the support to move the valve needle downwards, the tip end of the valve needle is separated from the necking part, the upper side and the lower side of the necking part are communicated, and the opening action of an oil way is completed.

In an alternative embodiment, the middle of the bracket is fixed to the valve needle by a first pin 20, one end of the bracket is connected to the floating ball, and the other end of the bracket is installed at the lower part of the valve block by a second pin 21, for example, a vertical chute may be installed at the lower part of the valve block, and the second pin is slidably installed in the chute.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.

Claims

1. An adjustable oil level controller comprises a cylinder, wherein an upper end cover is arranged at the upper end of the cylinder, and a lower end cover is arranged at the lower end of the cylinder; the method is characterized in that:

2. The adjustable oil level controller of claim 1, wherein: the adjusting mechanism comprises an adjusting nut screwed on the outer side of the oil way connector through threads, an adjusting groove is formed in the side wall of the oil way connector, a follow-up component is mounted on the adjusting nut, and the follow-up component penetrates through the adjusting groove and is mounted on the valve block.

3. The adjustable oil level controller of claim 2, wherein: the follow-up assembly comprises an adjusting follow-up block sleeved on the oil way connector, and the adjusting follow-up block is fixed with the valve block through a connecting pin.

4. The adjustable oil level controller of claim 3, wherein: the adjusting groove is axially arranged along the oil way connector, and the connecting pin is in sliding fit with the adjusting groove.

5. The adjustable oil level controller of claim 2, wherein: the sealing element comprises a plurality of sealing rings arranged on the valve block.

6. The adjustable oil level controller of claim 3, wherein: an inner groove is formed in the lower portion of the adjusting nut, the adjusting follow-up block is located in the inner groove, and the adjusting follow-up block is fixed with the adjusting nut through a clamping piece.

7. The adjustable oil level controller of claim 6, wherein: the clamping piece comprises a clamping spring.

8. The adjustable oil level controller of claim 2, wherein: and a locking nut is arranged above the adjusting nut and screwed on the oil way connector.

9. The adjustable oil level controller of claim 1, wherein: the floating ball mechanism comprises a support arranged at the lower part of the valve needle, and a floating ball is arranged at the lower end of the support.