CN114508428A - Balance lever structure for adjusting torsion of throttle lever - Google Patents
Balance lever structure for adjusting torsion of throttle lever Download PDFInfo
- Publication number
- CN114508428A CN114508428A CN202111638654.3A CN202111638654A CN114508428A CN 114508428 A CN114508428 A CN 114508428A CN 202111638654 A CN202111638654 A CN 202111638654A CN 114508428 A CN114508428 A CN 114508428A
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- CN
- China
- Prior art keywords
- lever
- camshaft
- balance
- adjusting
- throttle
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- 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.)
- Pending
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- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 5
- 239000000446 fuel Substances 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
- F02D1/02—Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered
- F02D1/08—Transmission of control impulse to pump control, e.g. with power drive or power assistance
- F02D1/10—Transmission of control impulse to pump control, e.g. with power drive or power assistance mechanical
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
- F02D1/02—Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered
- F02D1/08—Transmission of control impulse to pump control, e.g. with power drive or power assistance
- F02D1/12—Transmission of control impulse to pump control, e.g. with power drive or power assistance non-mechanical, e.g. hydraulic
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The invention discloses a balance lever structure for adjusting the torque of a throttle lever, which comprises: the two ends of the camshaft are rotationally connected with the shell of the regulator, and the camshaft is connected with the throttle lever through an internal spline and an external spline; the control lever is arranged on the upper side of the camshaft and is attached to the lift profile of the camshaft; the balance lever, the balance lever sets up in the downside of camshaft to laminate mutually with the balanced profile of camshaft, balance lever and control lever parallel arrangement. The invention can effectively adjust the torque of the throttle lever, reduce the abrasion of parts and improve the service life and reliability of mechanical parts.
Description
Technical Field
The invention relates to the technical field of mechanical hydraulic fuel regulator equipment, in particular to a balance lever structure for adjusting the torque of a throttle lever.
Background
The fuel regulator for aircraft engine is composed of several parts coupled to each other and is an important component of aircraft engine. The fuel regulator is used as an actuating mechanism for main control fuel on one hand and as a mechanical hydraulic control backup for an aircraft engine digital control system on the other hand.
The throttle lever structure in the existing mechanical hydraulic fuel regulator generally has the problem that the torque is larger than a required value, the control of a mechanical part is not facilitated, parts such as a cam shaft, a bearing and the like are seriously abraded, and the harmfulness is high.
Accordingly, those skilled in the art have provided a balance lever structure for adjusting the torque of the throttle lever to solve the above-mentioned problems of the background art.
Disclosure of Invention
The invention provides a balance lever structure for adjusting the torque of a throttle lever, which can solve the problems, effectively adjust the torque of the throttle lever, reduce the abrasion of parts and improve the service life and reliability of mechanical parts.
In order to achieve the above purpose, the invention provides the following technical scheme:
the invention relates to a balance lever structure for adjusting the torsion of a throttle lever, which comprises:
the two ends of the camshaft are rotationally connected with the shell of the regulator, and the camshaft is connected with the throttle lever through an internal spline and an external spline;
the control lever is arranged on the upper side of the camshaft and is attached to the lift profile of the camshaft;
the balance lever, the balance lever sets up in the downside of camshaft to laminate mutually with the balanced profile of camshaft, balance lever and control lever parallel arrangement.
Furthermore, one end of the balance lever is connected with the lower fulcrum, the other end of the balance lever abuts against the upper end of the balance spring, the lower end of the balance spring is provided with an adjusting gasket, and the adjusting gasket is arranged in the shell of the regulator.
Furthermore, one end of the control lever is connected with the upper supporting point, the other end of the control lever abuts against the control spring, and the control spring controls the displacement of the metering sleeve.
Further, the lower fulcrum and the upper fulcrum are both arranged in the regulator shell.
In the technical scheme, the balance lever structure for adjusting the torsion of the throttle lever provided by the invention has the following beneficial effects:
1. through the lever mechanism for balancing the radial force of the camshaft on the throttle lever, the torque of the throttle lever is adjusted, the operation requirement of an engine is met, the abrasion resistance of the camshaft can be improved, and the service life of the cam mechanism is prolonged. Product design with requirement on torsion of throttle lever applied to aviation field
2. The accelerator system has the advantages of simple structure, improvement of the maneuverability of the accelerator system, effective reduction of the abrasion of parts and components, and improvement of the service life of parts and the reliability of products.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is a schematic structural diagram of a balance lever structure for adjusting a torsion moment of a throttle lever according to an embodiment of the present invention.
Description of reference numerals:
1. a camshaft; 2. a control lever; 3. a balance lever; 4. a lower fulcrum; 5. adjusting the gasket; 6. a balance spring; 7. an upper fulcrum; 8. a metering sleeve; 9. the spring is controlled.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1;
the embodiment of the invention provides a balance lever structure for adjusting the torque of a throttle lever, which comprises:
the two ends of the camshaft 1 are rotationally connected with an adjuster shell (not shown), the camshaft 1 is connected with the adjuster shell through a ball bearing, the camshaft 1 is connected with an accelerator rod (not shown) through an internal spline and an external spline, the internal spline and the external spline are installed in a staggered tooth mode, idle stroke is eliminated, and the accelerator rod and the camshaft 1 are guaranteed to rotate synchronously;
the control lever 2 is arranged on the upper side of the camshaft 1, and is attached to the lift profile of the camshaft 1; one end of the control lever 2 is connected with the upper supporting point 7, the other end of the control lever 2 abuts against the control spring 9, and the control spring 9 controls the displacement of the metering sleeve 8;
The lower fulcrum 4 and the upper fulcrum 7 are both arranged in the regulator shell.
During specific work, the camshaft 1 receives input torque transmitted by the throttle lever, when the camshaft 1 rotates, the cam profile rotates, the control lever 2 compresses the control spring 9 to achieve position control of the metering sleeve 8, and the position of the metering sleeve 8 determines the oil supply amount of the regulator; when the control lever 2 works, the balance lever 3 and the balance spring 6 below the camshaft 1 are compressed under the action of the camshaft 1, and due to the arrangement of the adjusting gasket 5, thrust is applied to the balance lever 3 through the balance spring 6, and radial force generated by the camshaft 1 is ensured, so that the torque of the camshaft 1 meets the specified value.
The initial assembly thickness of the adjusting gasket 5 can be calculated by controlling the arm length of the lever 2, the pretightening force of the control spring 9, the arm length of the balance lever 3 and the pretightening force of the balance lever 3; during the regulator is experimental, through the further adjustment to adjusting shim 5, guarantee that the moment of torsion value of throttle lever can satisfy technical requirement.
Meanwhile, because the radial force borne by the camshaft 1 is approximately balanced, eccentric wear with the bearing can not occur, and the service life of the camshaft and the bearing is greatly prolonged; because there is not eccentric wear problem, the clearance between camshaft and the bearing can not grow, this stability of performance when also having guaranteed the regulator work.
The accelerator system is simple in structure, the operability of the accelerator system is improved, the abrasion of parts and components is effectively reduced, and the service life of parts and the reliability of products are improved.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (4)
1. A balance lever structure for adjusting a torque of a throttle lever, the structure comprising:
the two ends of the camshaft (1) are rotationally connected with the shell of the regulator, and the camshaft (1) is connected with the throttle lever through an internal spline and an external spline;
the control lever (2) is arranged on the upper side of the camshaft (1) and is attached to a lift profile of the camshaft (1);
balance lever (3), balance lever (3) set up in the downside of camshaft (1) to laminate mutually with the balanced profile of camshaft (1), balance lever (3) and control lever (2) parallel arrangement.
2. The balance lever structure for adjusting the torsion of the throttle lever according to claim 1, wherein one end of the balance lever (3) is connected with the lower fulcrum (4), the other end of the balance lever (3) abuts against the upper end of the balance spring (6), and the lower end of the balance spring (6) is provided with the adjusting gasket (5). The adjusting shim (5) is arranged in the regulator shell.
3. The balance lever structure for adjusting the torsion of the throttle lever according to claim 2, wherein one end of the control lever (2) is connected with the upper fulcrum (7), the other end of the control lever (2) abuts against the control spring (9), and the control spring (9) controls the displacement of the metering sleeve (8).
4. A balance lever structure for adjusting the torque of a throttle lever according to claim 3, wherein said first fulcrum (4) and said second fulcrum (7) are both disposed in the regulator housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111638654.3A CN114508428A (en) | 2021-12-29 | 2021-12-29 | Balance lever structure for adjusting torsion of throttle lever |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111638654.3A CN114508428A (en) | 2021-12-29 | 2021-12-29 | Balance lever structure for adjusting torsion of throttle lever |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114508428A true CN114508428A (en) | 2022-05-17 |
Family
ID=81548032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111638654.3A Pending CN114508428A (en) | 2021-12-29 | 2021-12-29 | Balance lever structure for adjusting torsion of throttle lever |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114508428A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB487784A (en) * | 1936-02-12 | 1938-06-23 | Sulzer Ag | Improvements in or relating to means for controlling internal conbustion engine power units |
| GB1237071A (en) * | 1967-05-03 | 1971-06-30 | Lucas Industries Ltd | Speed control apparatus for gas turbine engines |
| US4977879A (en) * | 1990-02-12 | 1990-12-18 | Briggs & Stratton Corporation | Mechanical governor for internal combustion engines |
| CN101082308A (en) * | 2007-06-29 | 2007-12-05 | 无锡开普动力有限公司 | Electronic speed regulating device of diesel engine |
| CN101225771A (en) * | 2007-11-29 | 2008-07-23 | 哈尔滨工程大学 | Speed regulating device for double pulse mechanical hydraulic-pressure type diesel engine |
| CN112539093A (en) * | 2020-12-03 | 2021-03-23 | 湖南大兹动力科技有限公司 | Valve timing and lift variable device for internal combustion engine and adjusting mode thereof |
-
2021
- 2021-12-29 CN CN202111638654.3A patent/CN114508428A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB487784A (en) * | 1936-02-12 | 1938-06-23 | Sulzer Ag | Improvements in or relating to means for controlling internal conbustion engine power units |
| GB1237071A (en) * | 1967-05-03 | 1971-06-30 | Lucas Industries Ltd | Speed control apparatus for gas turbine engines |
| US4977879A (en) * | 1990-02-12 | 1990-12-18 | Briggs & Stratton Corporation | Mechanical governor for internal combustion engines |
| CN101082308A (en) * | 2007-06-29 | 2007-12-05 | 无锡开普动力有限公司 | Electronic speed regulating device of diesel engine |
| CN101225771A (en) * | 2007-11-29 | 2008-07-23 | 哈尔滨工程大学 | Speed regulating device for double pulse mechanical hydraulic-pressure type diesel engine |
| CN112539093A (en) * | 2020-12-03 | 2021-03-23 | 湖南大兹动力科技有限公司 | Valve timing and lift variable device for internal combustion engine and adjusting mode thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20220517 |