阅读说明：本技术 一种柴油发动机油泵调速器 (Diesel engine oil pump speed regulator ) 是由 周治国 唐立平 于 2020-12-28 设计创作，主要内容包括：本发明属于调速设备技术领域,涉及一种柴油发动机油泵调速器,包括设置在壳体内的飞锤部件、调速部件和张力部件,所述调速部件和张力部件共同铰接在位于飞锤部件中心轴线下方的支承轴上,所述调速部件能够在飞锤部件的作用下向张力部件方向转动,并能够在张力部件的作用下保持额定油量,所述张力部件远离调速部件的一侧设有稳定器部件和调速弹簧,所述稳定器部件和调速弹簧共同作用在张力部件上,用于保证低速运转时飞锤部件的稳定性。本发明结构简单,体积小,便于与油泵连接安装,又兼有操纵力小,调速率低,许用转速高等优良性能,能满足运输车辆、工程机械、农业机械、发电机组等各种用途柴油机的需要。(The invention belongs to the technical field of speed regulation equipment, and relates to a diesel engine oil pump speed regulator, which comprises a flyweight component, a speed regulation component and a tension component which are arranged in a shell, wherein the speed regulation component and the tension component are jointly hinged on a supporting shaft positioned below the central axis of the flyweight component, the speed regulation component can rotate towards the direction of the tension component under the action of the flyweight component and can keep the rated oil quantity under the action of the tension component, a stabilizer component and a speed regulation spring are arranged on one side of the tension component, which is far away from the speed regulation component, and the stabilizer component and the speed regulation spring jointly act on the tension component and are used for ensuring the stability of the flyweight component during low-speed operation. The invention has the advantages of simple structure, small volume, convenient connection and installation with an oil pump, small operating force, low speed regulation rate, high allowable rotating speed and the like, and can meet the requirements of diesel engines with various purposes such as transport vehicles, engineering machinery, agricultural machinery, generator sets and the like.)

1. The utility model provides a diesel engine oil pump speed regulator, is including setting up flyweight part, speed governing part and the tension part in casing (1), its characterized in that: the speed regulation component and the tension component are jointly hinged on the supporting shaft (10), the speed regulation component can rotate towards the direction of the tension component under the action of the flyweight component and can keep the rated oil amount under the action of the tension component, one side, far away from the speed regulation component, of the tension component is provided with a stabilizer component and a speed regulation spring (14), and the stabilizer component and the speed regulation spring (14) jointly act on the tension component and are used for guaranteeing the stability of the flyweight component during low-speed operation.

2. The diesel engine oil pump governor of claim 1, wherein: the flyweight component comprises a camshaft (5) extending into the shell and a flyweight support (6) arranged at the end part of the camshaft (5), the edge of the flyweight support (6) is evenly hinged with a plurality of flyweights (7), the middle cylinder of the flyweight support (6) is sleeved with a sliding sleeve (8) capable of axially moving, one end of the sliding sleeve (8) is connected with the flyweights (7), and the other end of the sliding sleeve is connected with the speed regulation component.

3. The diesel engine oil pump governor of claim 1, wherein: the speed regulation part comprises a speed regulation rod (9), one end of the speed regulation rod (9) is hinged to the supporting shaft (10), the other end of the speed regulation rod is connected with an oil control pull rod (2) located above the flyweight part, one end of the oil control pull rod (2) is connected with a starting spring (3), and a shifting fork (11) and a fork pin (4) which are connected in a matched mode are arranged between the speed regulation rod (9) and the starting spring (3).

4. The diesel engine oil pump governor of claim 1, wherein: the tension component comprises a tension rod (12), one end of the tension rod (12) is hinged to the supporting shaft (10), an oil quantity limiting screw (13) is arranged between the other end of the tension rod and the shell (1), and the speed regulating spring (14) is used for abutting the tension rod (12) against the oil quantity limiting screw (13).

5. The diesel engine oil pump governor of claim 1, wherein: the speed regulating spring (14) is a torsion spring and is arranged on the speed regulating shaft (15), and one end of the speed regulating shaft (15) extends out of the shell (1) to be connected with the speed regulating handle (16) and the speed limiting screw (17).

6. The diesel engine oil pump governor of claim 1, wherein: the stabilizer member includes a stabilizer screw (18) extending into the housing and a stabilizer spring (19) disposed between an end of the stabilizer screw (18) and the tension member.

7. The diesel engine oil pump governor of claim 1, wherein: the supporting shaft (10) is positioned below the central axis of the flyweight component, and the action points of the stabilizer component and the speed regulating spring (14) on the tension component are positioned on the central axis of the flyweight component.

Technical Field

The invention belongs to the technical field of speed regulating equipment, and particularly relates to a diesel engine oil pump speed regulator.

Background

The speed characteristic of the oil pump is very unfavorable for the diesel engine with variable working conditions, and the slight load change of the diesel engine can cause the drastic change of the rotating speed. When the load is reduced, the rotation speed is increased, the oil supply of the plunger pump is increased due to the increase of the rotation speed, and the rotation speed is further increased due to the increased oil supply amount. Conversely, the rotational speed decreases as the load increases, which causes the plunger pump to supply oil in a reduced amount, which in turn causes the rotational speed to decrease further. To change the vicious circle, a device, i.e., a governor, capable of automatically adjusting the amount of oil supply according to the load change is required.

The existing mechanical speed regulators can be divided into a full-stroke speed regulator and a two-pole speed regulator. The prior full-stroke speed regulator has large operating force, and when the prior full-stroke speed regulator is used for transporting vehicles, the counter force on an accelerator pedal is large, so that a driver is easy to fatigue; the existing two-pole speed regulator has small operating force, is suitable for vehicles, but has complex structure and higher cost. For example, the T7B full-range speed regulator for the I pump, which is produced in large scale at home at present, adopts a steel ball type flyweight, a sliding disc and a torsion spring, has no speed regulation lever, simple structure and small volume, but because the force of the speed regulation spring acts on the rotation axis of the flyweight, the operating force is large, and the T7B full-range speed regulator is not suitable for a vehicle high-speed diesel engine, and because of no lever ratio, the speed regulation rate is high, and the T7B full-range speed. The pump I is also provided with a speed regulator special for distributing a generator set, which adopts a torsion spring, a single lever and a lower fulcrum structure, has no automatic starting and thickening functions although the structure is simple, has large operating force and is not suitable for other purposes. And like the RSV whole-course speed regulator widely used at home and abroad, the RAD and RFD two-pole speed regulators adopt an upper fulcrum three-lever and four-lever structure, and a speed regulation spring is a tension spring, so that the speed regulation device has complete functions, but has a complex structure, a large volume and high cost. The RVIM speed regulator of the Czech MOTORPAL company adopts a lower fulcrum double lever, although the structure is simple, the speed regulating spring adopts a pressure spring which is arranged above a flyweight and connected with a tension rod, the height size of the speed regulator is larger, the matching range is limited, and the speed regulator is difficult to be installed and used on products such as a pump I and the like.

Disclosure of Invention

The invention aims to solve the problems of large operating force, complex structure and high cost in the prior art, and provides the diesel engine oil pump speed regulator which is simple in structure, small in size, small in operating force, low in speed regulation rate, sensitive in speed regulation, stable and reliable.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the utility model provides a diesel engine oil pump speed regulator, is including setting up flyweight part, speed governing part and the tension part in the casing, speed governing part and tension part articulate on the supporting axle jointly, the speed governing part can rotate to the tension part direction under the effect of flyweight part to can keep the rated oil mass under the effect of tension part, one side that the speed governing part was kept away from to the tension part is equipped with stabilizer part and speed governing spring, stabilizer part and speed governing spring combined action are on the tension part for the stability of flyweight part when guaranteeing low-speed operation.

Preferably, the flyweight component comprises a camshaft extending into the shell and a flyweight support arranged at the end part of the camshaft, the edge of the flyweight support is evenly hinged with a plurality of flyweights, a sliding sleeve capable of axially moving is sleeved on a middle cylinder of the flyweight support, one end of the sliding sleeve is connected with the flyweights, and the other end of the sliding sleeve is connected with the speed regulation component.

Preferably, the speed regulation part comprises a speed regulation rod, one end of the speed regulation rod is hinged to the supporting shaft, the other end of the speed regulation rod is connected with an oil control pull rod located above the flyweight part, one end of the oil control pull rod is connected with a starting spring, and a shifting fork and a fork pin which are connected in a matched mode are arranged between the speed regulation rod and the starting spring.

Preferably, the tension part comprises a tension rod, one end of the tension rod is hinged to the supporting shaft, an oil amount limiting screw is arranged between the other end of the tension rod and the shell, and the speed regulating spring is used for abutting the tension rod on the oil amount limiting screw.

Preferably, the speed regulating spring is a torsion spring and is arranged on the speed regulating shaft, and one end of the speed regulating shaft extends out of the shell and is connected with the speed regulating handle and the speed limiting screw.

Preferably, the stabilizer member comprises a stabilizing screw extending into the housing and a stabilizing spring disposed between an end of the stabilizing screw and the tension member.

Preferably, the support shaft is located below the center axis of the flyweight member, and the points of action of the stabilizer member and the governor spring on the tension member are located on the center axis of the flyweight member.

After the technical scheme is adopted, the oil pump speed regulator of the diesel engine provided by the invention has the following beneficial effects:

through the design of the stabilizer component, under the synergistic action of the speed regulating spring, the invention not only can ensure the rated oil quantity when the diesel engine runs at high speed, but also can ensure the stability of the flyweight component when the diesel engine runs at low speed. Compared with the prior art, the invention has the advantages of simple structure, small volume, convenient connection and installation with an oil pump, small operating force, low speed regulation rate, high allowable rotating speed and the like, and can meet the requirements of diesel engines with various purposes such as transport vehicles, engineering machinery, agricultural machinery, generator sets and the like.

Drawings

FIG. 1 is a front cross-sectional view of a diesel engine oil pump governor of the present invention;

fig. 2 is a left side cross-sectional view of a diesel engine oil pump governor of the present invention.

Wherein: the oil-controlled hydraulic control device comprises a shell 1, an oil control pull rod 2, a starting spring 3, a fork pin 4, a cam shaft 5, a flyweight support 6, a flyweight 7, a sliding sleeve 8, a speed regulating rod 9, a supporting shaft 10, a shifting fork 11, a tension rod 12, an oil quantity limiting screw 13, a speed regulating spring 14, a speed regulating shaft 15, a speed regulating handle 16, a speed limiting screw 17, a stabilizing screw 18 and a stabilizing spring 19.

Detailed Description

The present invention now will be described more fully hereinafter with reference to the accompanying drawings and detailed description, in which it is to be understood that the embodiments described are merely illustrative of some, but not all embodiments of the invention. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

As shown in fig. 1-2, the oil pump governor for a diesel engine according to the present invention includes a housing 1, and a flyweight member, a governor member, and a tension member disposed inside the housing 1.

The flyweight component comprises a camshaft 5 which extends into the shell 1 and is rotationally connected with the shell 1, a flyweight support 6 is installed at the end part of the camshaft 5, a plurality of L-shaped flyweights 7 are evenly hinged to the edge of the flyweight support 6, a sliding sleeve 8 capable of axially moving is sleeved on a middle cylinder of the flyweight support 6, one end of the sliding sleeve 8 is connected with the flyweights 7, the other end of the sliding sleeve is connected with the speed regulating component, the camshaft 5 drives the flyweight support 6 to rotate, the flyweights 7 rotate along the hinged joints of the flyweights under the rotating action of the flyweight support 6, and different angles are opened at different rotating speeds, namely the flyweights are opened and closed along with the rising and falling of the rotating speeds, so that the sliding sleeve 8 can be pushed to change the position of.

The utility model discloses a fly hammer, including speed governing part, supporting axle 10, speed governing part, actuating spring 3, starting spring 3, be equipped with shift fork 11 and fork pin 4 that the cooperation is connected between speed governing part and the starting spring 3, speed governing part and tension part articulate jointly on the supporting axle 10 that is located fly hammer part the central axis below, it is specific, the speed governing part sets up between fly hammer part and tension part, the speed governing part includes speed adjusting rod 9, speed adjusting rod 9 one end articulates on supporting axle 10, and the other end is connected with the oily pull rod 2 of accuse that is located fly hammer part top, the position that sliding sleeve 8 corresponds to fly hammer part the central axis department is connected between the both ends of speed adjusting rod 9 through the connecting block, the starting spring 3 is connected to accuse oily pull rod 2 one end, be equipped with the cooperation between speed adjusting rod 9 and the starting spring 3.

The tension component comprises a tension rod 12, one end of the tension rod 12 is hinged to the supporting shaft 10, an oil quantity limiting screw 13 is arranged between the other end of the tension rod 12 and the shell 1, and the oil quantity limiting screw 13 is used for limiting the extreme left position of the tension rod 12 so as to control the rated oil quantity.

Furthermore, a stabilizer part and a speed regulating spring 14 are arranged on one side, away from the speed regulating part, of the tension part, the speed regulating spring 14 is a torsion spring and is arranged on a speed regulating shaft 15 and used for abutting the tension rod 12 on an oil quantity limiting screw 13, one end of the speed regulating shaft 15 extends out of the shell 1 and is connected with a speed regulating handle 16 and a speed limiting screw 17, and the pretightening force of the speed regulating spring 14 can be changed through the speed regulating handle 16 and the speed limiting screw 17, so that the rotating speed of the diesel engine is controlled.

The stabilizer part comprises a stabilizing screw 18 extending into the shell and a stabilizing spring 19 arranged between the end part of the stabilizing screw 18 and the tension part, the acting points of the stabilizer part and the speed regulating spring 14 on the tension part are both positioned on the central axis of the flyweight part, and the stability of the flyweight part during low-speed operation, namely the stability of the opening angle of the flyweight 7 during low-speed operation, can be ensured through the synergistic action of the stabilizer part and the speed regulating spring 14 on the tension part.

The diesel engine oil pump speed regulator of the invention works as follows, when the diesel engine starts, the oil control tie rod 2 locates at the starting enrichment position of the leftmost end under the effect of the starting spring 3, after starting, the rotational speed rises, the flyweight 7 opens under the effect of centrifugal force, promote the sliding bush 8 to move rightwards, the velocity modulation pole 9 rotates around supporting axle 10 under the promotion of the sliding bush 8, drive the oil control tie rod 2 to move rightwards, when the rotational speed rises to the velocity modulation pole 9 and collides with the tension lever 12, the flyweight thrust can keep steady under the effects of velocity modulation spring 14 and stabilizing spring 19; when the rotating speed further rises to the state that the thrust of the flyweight is balanced with the pretightening force of the speed regulating spring 14 and the stabilizing spring 19, the oil control pull rod 2 is stopped at the rated oil quantity position; when the rotating speed further rises to the point that the thrust of the flyweight exceeds the pretightening force of the speed regulating spring 14 and the stabilizing spring 19, the sliding sleeve 8 pushes the tension rod 12 to move rightwards, and drives the oil control pull rod 2 to move rightwards to an oil stopping position.

In conclusion, the diesel engine oil pump speed regulator provided by the invention has the advantages of simple structure, small volume, convenience in connection and installation with an oil pump, small operating force, low speed regulation rate, high allowable rotating speed and the like, and can meet the requirements of various diesel engines for transportation vehicles, engineering machinery, agricultural machinery, generator sets and the like.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.