CN202001576U - Waist-shaped mounting hole structure used for guaranteeing synchronous initial positions of two rocker arms - Google Patents
Waist-shaped mounting hole structure used for guaranteeing synchronous initial positions of two rocker arms Download PDFInfo
- Publication number
- CN202001576U CN202001576U CN2010205828858U CN201020582885U CN202001576U CN 202001576 U CN202001576 U CN 202001576U CN 2010205828858 U CN2010205828858 U CN 2010205828858U CN 201020582885 U CN201020582885 U CN 201020582885U CN 202001576 U CN202001576 U CN 202001576U
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- gear
- mounting hole
- rocking arm
- hole
- waist
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- Expired - Lifetime
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Abstract
The utility model discloses a waist-shaped mounting hole structure used for guaranteeing synchronous initial positions of two rocker arms. The waist-shaped mounting hole structure comprises a left shell body (1), a right shell body (2), a left gear (4), a right gear (3), a left rocker arm (6) and a right rocker arm (5), wherein the left gear (4) passes through a gear hole A (11) arranged on the left rocker arm (6) and a gear hole B (12) arranged on the left shell body (1); and the right gear (3) passes through a gear hole C (13) arranged on the right rocker arm (5) and a gear hole D (14) arranged on the right shell body (2). The waist-shaped mounting hole structure is characterized in that an mounting hole A (7) arranged on the left rocker arm (6) and an mounting hole B (8) arranged on the right rocker arm (5) are waist-shaped holes. The waist-shaped mounting hole structure does not reduce the precision of assembly, has low requirements on the manufacturing precision and is precise and reliable to install.
Description
Technical field
The utility model relates to field of mechanical technique, relates in particular to a kind of assembling structure of mounting hole.
Background technique
Mechanism's (see figure 1) of existing detection rocking arm corner comprises left shell 1, right shell body 2, left rocking arm 6, right Rocker arm 5, and left gear 4 and right gear 3, gear passes rocking arm and housing, and sensor is connected with gear, to detect the rocking arm corner.For guaranteeing to be synchronized with the movement in the two rocking arm using processs, mount pin need pass a left side simultaneously during assembling, the mounting hole A of right rocking arm, a mounting hole B and a supporting with it left side, right shell body mounting hole C, mounting hole D, left gear passes gear hole A on the left rocking arm and the gear hole B on the left shell, right gear passes gear hole C on the right rocking arm and the gear hole D on the right shell body, because these Kong Jun are designed to circle, mounting hole is four comprehensive stacks apart from size to the final distance of gear hole: on the left rocking arm two pitch-rows from, on the right rocking arm two pitch-rows from, on the left shell two pitch-rows from, on the right shell body two pitch-rows from, two pitch-rows of four parts are from all must strictly controlling, manufacturing requires very high, and occurring mount pin often can not be with the situation of passing four parts.Must make on two rocking arms two mounting holes on two mounting holes and the two housings, these four holes coaxial (4 coincidences) could guarantee to install smoothly, and this promptly influences the assembly quality of product, influences the assembling progress again.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned shortcoming and a kind of assembly precision that do not reduce of providing, and the manufacturing required precision is lower, install and guarantee the waist shape structure of mounting hole that two rocking arm initial positions are synchronous accurately and reliably.
The purpose of this utility model and solve its technical problem underlying and realize by the following technical solutions:
The synchronous waist shape structure of mounting hole of assurance two rocking arm initial positions of the present utility model, comprise left shell, right shell body, left gear, right gear, left rocking arm and right rocking arm, left gear passes gear hole A on the left rocking arm and gear hole B, right gear on the left shell and passes gear hole C on the right rocking arm and the gear hole D on the right shell body, and wherein: the mounting hole A on left rocking arm, the right rocking arm, mounting hole B are waist shaped hole.
The above-mentioned synchronous waist shape structure of mounting hole of assurance two rocking arm initial positions, wherein: waist shaped hole center line and housing mounting hole axis coaxle.
The above-mentioned synchronous waist shape structure of mounting hole of assurance two rocking arm initial positions, wherein: three axially bored line coplanes on the rocking arm.
The utility model compared with prior art, has tangible beneficial effect, as can be known from the above technical solutions: the mounting hole on the left and right rocking arm is designed to waist shaped hole, utilizes the major axis of waist shaped hole and the mounting hole axis conllinear on other two housings just can satisfy the characteristics of matching requirements.The major axis of waist shaped hole overlaps and just can install smoothly on two hole axles on the two housings and the rocking arm.Thereby reduced mounting hole and gear hole on rocking arm and the housing apart from tolerance, thereby reduced the manufacturing requirement of correlated parts.And waist shaped hole is simple in structure, processing, easy to install and use, and the scope of application is wide.
Description of drawings
Fig. 1 is the perspective view of prior art;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 is the plan view of Fig. 2;
Fig. 4 is the A-A sectional view of Fig. 2;
Fig. 5 is the B-B sectional view of Fig. 2;
Mark among the figure:
1, left shell; 2, right shell body; 3, right gear; 4, left gear; 5, right rocking arm; 6, left rocking arm; 7, mounting hole A; 8, mounting hole B; 9, mounting hole C; 10, mounting hole D; 11, gear hole A; 12, gear hole B; 13, gear hole C; 14, gear hole D.
Embodiment
Referring to Fig. 1-5, guarantee the waist shape structure of mounting hole that two rocking arm initial positions are synchronous, comprise left shell 1, right shell body 2, left gear 4, right gear 3, left rocking arm 6 and right Rocker arm 5, left gear 4 passes gear hole A11 on the left rocking arm and the gear hole B12 on the left shell, right gear 3 and passes gear hole C13 on the right rocking arm and the gear hole D14 on the right shell body, and wherein: the mounting hole A7 on left rocking arm 6, the right Rocker arm 5, mounting hole B8 are waist shaped hole.Waist shaped hole center line and housing mounting hole axis coaxle, three axially bored line coplanes on the rocking arm.
Add man-hour, mounting hole A7, mounting hole B8 are processed into waist shaped hole, wherein the waist shaped hole long axis length gets final product for long 1～2 millimeter than the mounting hole C9 on the two housings, mounting hole D10 aperture size, and mounting hole C9 on width and the two housings, mounting hole D10 aperture size are identical.
During use: mount pin is passed left rocking arm 6, left shell 1, right shell body 3, right Rocker arm 5 successively, because the mounting hole on the rocking arm is a waist shaped hole, made full use of the major axis space of waist shaped hole; the mounting hole between rocking arm and housing by four original axially bored lines coaxial could guarantee to install need; the axially bored line that becomes on the housing is coaxial, simultaneously with two rocking arms on the face coplane formed of waist shaped hole long axis just can guarantee the installation needs.
Claims (3)
1. one kind guarantees the synchronous waist shape structure of mounting hole of two rocking arm initial positions, comprise left shell (1), right shell body (2), left gear (4), right gear (3), left rocking arm (6) and right rocking arm (5), left gear (4) passes gear hole A (11) on the left rocking arm and the gear hole B (12) on the left shell, right gear (3) and passes gear hole C (13) on the right rocking arm and the gear hole D (14) on the right shell body, and it is characterized in that: the mounting hole A (7) on left rocking arm (6), the right rocking arm (5), mounting hole B (8) are waist shaped hole.
2. the synchronous waist shape structure of mounting hole of assurance two rocking arm initial positions as claimed in claim 1 is characterized in that: waist shaped hole center line and housing mounting hole axis coaxle.
3. the synchronous waist shape structure of mounting hole of assurance two rocking arm initial positions as claimed in claim 1 or 2 is characterized in that: three axially bored line coplanes on the rocking arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205828858U CN202001576U (en) | 2010-10-29 | 2010-10-29 | Waist-shaped mounting hole structure used for guaranteeing synchronous initial positions of two rocker arms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205828858U CN202001576U (en) | 2010-10-29 | 2010-10-29 | Waist-shaped mounting hole structure used for guaranteeing synchronous initial positions of two rocker arms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202001576U true CN202001576U (en) | 2011-10-05 |
Family
ID=44704317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205828858U Expired - Lifetime CN202001576U (en) | 2010-10-29 | 2010-10-29 | Waist-shaped mounting hole structure used for guaranteeing synchronous initial positions of two rocker arms |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202001576U (en) |
-
2010
- 2010-10-29 CN CN2010205828858U patent/CN202001576U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111005 |