CN102251823B - Double-torsion spring mounting bracket and manufacturing method thereof - Google Patents
Double-torsion spring mounting bracket and manufacturing method thereof Download PDFInfo
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- CN102251823B CN102251823B CN 201110156646 CN201110156646A CN102251823B CN 102251823 B CN102251823 B CN 102251823B CN 201110156646 CN201110156646 CN 201110156646 CN 201110156646 A CN201110156646 A CN 201110156646A CN 102251823 B CN102251823 B CN 102251823B
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- main body
- thrust plate
- lamina affixa
- torsion spring
- mounting bracket
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Abstract
The invention aims to provide a double-torsion spring mounting bracket and a manufacturing method thereof, ensuring that a double-torsion spring can be favorably positioned and installed on a guide block so as to improve the reliability of a valve lift control system. The double-torsion spring mounting bracket comprises a tabular main body provided with a mounting hole, wherein the front part of the main body is provided with a catch vertical to the main body; a first vertical thrust plate is respectively arranged below two sides of the main body; the rear part of the main body is connected with an affiliated plate which is parallel to the main body and is positioned below the main body; the affiliated plate is provided with a hole corresponding to a mounting hole; a second vertical thrust plate is respectively arranged below two sides of the affiliated plate; and a front vertical thrust plate is arranged below the front part of the affiliated plate. The double-torsion spring mounting bracket has the advantages of simple structure, low cost and simple manufacturing technology and convenience for installation.
Description
Technical field
The invention belongs to internal combustion engine system technology for making field, more particularly, the present invention relates to a kind of torsion spring mounting bracket and manufacture method thereof of novel changable valve lift distribution device.
Background technique
Along with the Abgasgesetz of the soaring and increasingly stringent of oil price, the main flow trend that lowly pollute, low oil consumption, motor high-power, high pulling torque becomes engine design, the changeable air valve technology is also popularized gradually.Patent CN200910116666.2 discloses a kind of valve lift control mechanism that is applied to the realized step-less adjustment of internal-combustion engine, can realize that valve lift is fully variable, satisfies Under Different Work Condition of Engine to valve lift and open-interval requirement.Camshaft in this valve lift control mechanism is installed on the bearing support of engine cylinder cover, engine cylinder covers hydraulic tappet is housed, finger type rocking arm is arranged on the hydraulic tappet, engine cylinder covers valve and valve spring is housed, this valve lift control mechanism also comprises link arm, eccentric shaft, the combination rocking arm, guide pad, torque spring, needle bearing I, needle bearing II, coupling shaft, worm gear structure, link arm is installed on the eccentric shaft, the combination rocking arm connects together eccentric shaft by link arm with the combination rocking arm, eccentric shaft is connected with stepper motor by worm gear structure, and torque spring is fixed on the guide pad, the pivoted arm of torque spring is installed on the combination rocking arm, and combination rocking arm lower surface is made as globoidal structure.The two torque springs of torque spring in the above-mentioned patent for being coupled together by two springs, its middle part is the fixing part of ring structure, this torque spring only relies on a clamping bolt that this fixing part is fixed on the guide pad, its installation is difficult to guarantee accurate location, two torque springs can deform in the middle of the distribution device working procedure, thereby the reliability of system is had a negative impact.
Summary of the invention
The objective of the invention is to propose a kind of pair of torsion spring mounting bracket and manufacture method thereof, with assurance two torque springs can be located and be installed on the guide pad well, thus the reliability of raising valve lift control system.
Of the present invention pair of torsion spring mounting bracket comprises the plate-like body that is provided with mounting hole, and the front portion of described main body is provided with the catch perpendicular to main body, and the down either side of described main body is provided with the first thrust plate perpendicular to main body.
When mounted, the fixing part of the ring structure in the middle part of two torque springs is positioned over the below of main body mounting hole, and be stuck between the first thrust plate of both sides, and then utilize bolt to be fixed on together two torque springs and support on the guide pad, and the lower end that makes the first thrust plate is stuck in the guide pad both sides, such the first thrust plate just can play location and spacing effect to two torque springs, catch also can play spacing effect to two torque springs in the horizontal direction simultaneously, can reduce torque spring distortion in the course of the work, improve the reliability of system.
Further, the lamina affixa that the rear portion of described main body is parallel to main body with one and is positioned at main body below is connected, the position perforate of the corresponding mounting hole of described lamina affixa, the down either side of lamina affixa is provided with the second thrust plate perpendicular to lamina affixa, and the lower front of lamina affixa is provided with the front thrust plate perpendicular to lamina affixa.When mounted, the fixing part of two torque springs is snapped between main body and the lamina affixa, and make the second thrust plate and front thrust plate be stuck in the periphery of guide pad, better two torque springs are positioned, main body and lamina affixa can also play to two torque springs the position-limiting action of Vertical direction simultaneously.
Further, the spacing of the first thrust plate of described main body both sides is greater than the spacing of the second thrust plate of lamina affixa both sides, and described the first thrust plate extends downward the below of lamina affixa.Be combined in the horizontal direction so as a wholely between main body and the lamina affixa, improved intensity, and between main body and lamina affixa, just formed the cavity body structure of an end opening, can play to two torque springs the position-limiting action of a plurality of directions.
The length of described the second thrust plate is greater than the length of the first thrust plate, to strengthen the supporting effect in vertical direction of two torque springs.
Described catch has two, and is arranged at respectively the both sides of body front part, can play better position-limiting action to two torque springs in the horizontal direction.
The top of described catch is semicircle shape, keeps consistent with two torque spring top shape, and attractive in appearance and difficult and other parts of motor interfere.
The manufacture method of above-mentioned pair of torsion spring mounting bracket comprises the steps: A: utilize cutting mode to obtain the sheet metal part of reservation shape, the medium position of sheet metal part is described main body; B: the front part sides of main body is upwards bent to form two described catch perpendicular to main body; C: the main body both sides are bent to form two vertical described the first thrust plates downwards; D: the rear portion of main body also is bent to form forward the described lamina affixa that is parallel to main body downwards, the both sides of lamina affixa are bent to form two described the second thrust plates perpendicular to lamina affixa downwards, the front portion of lamina affixa is bent to form described front thrust plate perpendicular to lamina affixa downwards.Above-mentioned reservation shape comprises the main body of intermediate rectangular, the first area of body front part and the second area of back body, and wherein the main body middle part is provided with mounting hole; The middle part of first area is rectangle, and both sides are semicircle; Second area is rectangle, and the middle part is provided with perforate, and the rear end is provided with outstanding rectangle; Be connected to each other between main body, first area, the second area.
Of the present invention pair of torsion spring mounting bracket is simple in structure, and cost is low, and manufacturing process is simple, easy for installation, can guarantee accurate location, two torque springs can be located and be installed on the guide pad well, thus the reliability of raising valve lift control system.
Description of drawings
Fig. 1 is the front view of of the present invention pair of torsion spring mounting bracket.
Fig. 2 is the side view of of the present invention pair of torsion spring mounting bracket.
Fig. 3 is the plan view of of the present invention pair of torsion spring mounting bracket.
Fig. 4 is the stereogram of of the present invention pair of torsion spring mounting bracket.
Fig. 5 is the plan view of making the used sheet metal part of of the present invention pair of torsion spring mounting bracket.
Fig. 6 is the use phase diagram of of the present invention pair of torsion spring mounting bracket.
Be labeled as among the figure: 1, torque arm; 2, two torque springs; 3, mounting bracket; 4, bolt; 5, guide pad; 6, secondary rocking arm; 7, restraining groove; 8, pivoted arm; 31, catch; 32, mounting hole; 33, front thrust plate; 34, the first thrust plate; 35, the second thrust plate; 36, main body; 37, lamina affixa.
Embodiment
The below contrasts accompanying drawing, by the description to embodiment, the effect of the mutual alignment between the shape of the specific embodiment of the present invention such as related each member, structure, the each several part and annexation, each several part and working principle etc. are described in further detail.
Embodiment 1:
Shown in Fig. 1～4, two torsion spring mounting brackets of present embodiment comprise the plate-like body 36 that is provided with mounting hole 32, the front portion of main body 36 is provided with two catch 31 perpendicular to main body, and the down either side of main body 36 is provided with the first thrust plate 34 perpendicular to main body 36; The lamina affixa 37 that the rear portion of main body 36 is parallel to main body with one and is positioned at main body below is connected, the position perforate of lamina affixa 37 corresponding mounting holes 32, the down either side of lamina affixa 37 is provided with the second thrust plate 35 perpendicular to lamina affixa 37, and the lower front of lamina affixa 37 is provided with the front thrust plate 33 perpendicular to lamina affixa 37; The spacing of the first thrust plate 34 of main body 36 both sides is greater than the spacing of the second thrust plate 35 of lamina affixa both sides, and the first thrust plate 34 extends downward the below of lamina affixa 37.
[0022]The length of the second thrust plate 35 is greater than the length of the first thrust plate 34, to strengthen the supporting effect in vertical direction of two torque springs.
The top of catch 31 is semicircle shape, keeps consistent with two torque spring top shape, and attractive in appearance and difficult and other parts of motor interfere.
As shown in Figure 5, the manufacture method of above-mentioned pair of torsion spring mounting bracket comprises the steps: A: utilize cutting mode to obtain the sheet metal part of reservation shape, the medium position of sheet metal part is described main body; B: the front part sides of main body is upwards bent to form two described catch perpendicular to main body; C: the main body both sides are bent to form two vertical described the first thrust plates downwards; D: the rear portion of main body also is bent to form forward the described lamina affixa that is parallel to main body downwards, the both sides of lamina affixa are bent to form two described the second thrust plates perpendicular to lamina affixa downwards, the front portion of lamina affixa is bent to form described front thrust plate perpendicular to lamina affixa downwards.Above-mentioned reservation shape comprises the main body of intermediate rectangular, the first area of body front part and the second area of back body, and wherein the main body middle part is provided with mounting hole; The middle part of first area is rectangle, and both sides are semicircle; Second area is rectangle, and the middle part is provided with perforate, and the rear end is provided with outstanding rectangle; Be connected to each other between main body, first area, the second area.
As shown in Figure 6, two torsion spring mounting bracket usings method of present embodiment are as follows: secondary rocking arm 6, torque arm 1 are installed on the guide pad 5, and two torque springs 2 are fixed on the mounting bracket 3, are fixed on by bolt 4 on the tapped hole of guide pad 5.The pivoted arm 8 of two torque springs 2 is installed on the restraining groove of secondary rocking arm 6, thereby guarantees the storage of secondary rocking arm 6 energy of torque spring 2 in rotation return process.
When mounted, the fixing part of the ring structure at two torque springs 2 middle parts is stretched between main body 36 and the lamina affixa 37, and make the second thrust plate 35 and front thrust plate 33 be stuck in the periphery of guide pad 5, and then utilize bolt 4 that two torque springs 2 and support 3 are fixed on the guide pad 5 together, such the first thrust plate 34, connecting plate between mainboard 36 and the lamina affixa 37 just can play to two torque springs 2 location and the position-limiting action of substantially horizontal, catch 31 can make spacing at axial direction of two torque springs 2, can reduce torque spring 2 distortion in the course of the work, improve the reliability of system; Main body 36 and lamina affixa 37 can play to two torque springs 2 position-limiting action of Vertical direction; The second thrust plate 35, front thrust plate 33 cooperate guide pad 5 can realize the simply and easily installation of two torque springs 2 and mounting bracket 3.
Claims (6)
1. a two torsion spring mounting bracket is characterized in that comprising the plate-like body that is provided with mounting hole, and the front portion of described main body is provided with the catch perpendicular to main body, and the down either side of described main body is provided with the first thrust plate perpendicular to main body; The lamina affixa that the rear portion of described main body is parallel to main body with one and is positioned at main body below is connected, the position perforate of the corresponding mounting hole of described lamina affixa, the down either side of lamina affixa is provided with the second thrust plate perpendicular to lamina affixa, and the lower front of lamina affixa is provided with the front thrust plate perpendicular to lamina affixa.
2. according to claim 1 pair of torsion spring mounting bracket is characterized in that the spacing of the first thrust plate of described main body both sides greater than the spacing of the second thrust plate of lamina affixa both sides, and described the first thrust plate extends downward the below of lamina affixa.
3. according to claim 2 pair of torsion spring mounting bracket is characterized in that the length of described the second thrust plate is greater than the length of the first thrust plate.
4. according to claim 1 and 2 or 3 described pairs of torsion spring mounting brackets, it is characterized in that described catch has two, and be arranged at respectively the both sides of body front part.
5. according to claim 4 pair of torsion spring mounting bracket, the top that it is characterized in that described catch is semicircle shape.
6. the manufacture method of according to claim 4 pair of torsion spring mounting bracket is characterized in that comprising the steps: A: utilize cutting mode to obtain the sheet metal part of reservation shape, the medium position of sheet metal part is described main body; B: the front part sides of main body is upwards bent to form two described catch perpendicular to main body; C: the main body both sides are bent to form two described the first thrust plates perpendicular to main body downwards; D: the rear portion of main body also is bent to form forward the described lamina affixa that is parallel to main body downwards, the both sides of lamina affixa are bent to form two described the second thrust plates perpendicular to lamina affixa downwards, the front portion of lamina affixa is bent to form described front thrust plate perpendicular to lamina affixa downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110156646 CN102251823B (en) | 2011-06-13 | 2011-06-13 | Double-torsion spring mounting bracket and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110156646 CN102251823B (en) | 2011-06-13 | 2011-06-13 | Double-torsion spring mounting bracket and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102251823A CN102251823A (en) | 2011-11-23 |
| CN102251823B true CN102251823B (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110156646 Active CN102251823B (en) | 2011-06-13 | 2011-06-13 | Double-torsion spring mounting bracket and manufacturing method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929717A (en) * | 2015-05-14 | 2015-09-23 | 奇瑞汽车股份有限公司 | Return torsion spring mounting pressing sheet and manufacturing method thereof |
| CN112032230B (en) * | 2020-09-10 | 2021-10-22 | 中国航空工业集团公司沈阳飞机设计研究所 | Method for determining performance of torsion spring with rectangular section |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1802490A (en) * | 2003-03-29 | 2006-07-12 | 液压环有限公司 | Variable valve lift control system for a combustion engine with underneath camshaft |
| CN101539042A (en) * | 2009-04-29 | 2009-09-23 | 奇瑞汽车股份有限公司 | Valve lift control mechanism capable of realizing stepless regulation |
| GB2473250A (en) * | 2009-09-07 | 2011-03-09 | Mechadyne Plc | Variable valve actuating system for i.c. engines |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2378729A (en) * | 2001-08-18 | 2003-02-19 | Mechadyne Plc | Adjustable engine valve control system |
| JP4519104B2 (en) * | 2006-06-01 | 2010-08-04 | 日立オートモティブシステムズ株式会社 | Variable valve operating device for internal combustion engine |
-
2011
- 2011-06-13 CN CN 201110156646 patent/CN102251823B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1802490A (en) * | 2003-03-29 | 2006-07-12 | 液压环有限公司 | Variable valve lift control system for a combustion engine with underneath camshaft |
| CN101539042A (en) * | 2009-04-29 | 2009-09-23 | 奇瑞汽车股份有限公司 | Valve lift control mechanism capable of realizing stepless regulation |
| GB2473250A (en) * | 2009-09-07 | 2011-03-09 | Mechadyne Plc | Variable valve actuating system for i.c. engines |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2007-321653A 2007.12.13 |
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| CN102251823A (en) | 2011-11-23 |
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