CN202900437U - Improved structure of gear chamber - Google Patents
Improved structure of gear chamber Download PDFInfo
- Publication number
- CN202900437U CN202900437U CN 201220515708 CN201220515708U CN202900437U CN 202900437 U CN202900437 U CN 202900437U CN 201220515708 CN201220515708 CN 201220515708 CN 201220515708 U CN201220515708 U CN 201220515708U CN 202900437 U CN202900437 U CN 202900437U
- Authority
- CN
- China
- Prior art keywords
- gear chamber
- positioning pin
- hole
- spacer
- pin hole
- Prior art date
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses an improved structure of a gear chamber. The improved structure comprises a gear chamber main body (10), wherein a positioning pin mounting hole (11) in the gear chamber main body (10) has a structure of a through hole, and a spacer (12) is embedded into the middle section of the positioning pin mounting hole (11) of the through hole; and a spatial distance is reserved between each of the upper and lower end faces of the spacer (12) and each of the upper and lower end faces of the positioning pin mounting hole (11). According to the improved structure, the positioning pin mounting hole is convenient to machine, the machining difficulty is reduced, and the yield of a finished product is improved. The concentricity precision of the positioning pin mounting hole is improved to a great extent, and the convenience in installation and the production and installation efficiency are improved.
Description
Technical field
The utility model relates to a kind of engine components, especially relates to a kind of gear chamber and improves structure.
Background technique
Usually at the motor assembly, need to upper lower body be installed and fixed by the gear chamber parts and be connected on the gear chamber, and upper lower body installed and fixed to be connected on the gear chamber usually to adopt the fixed installation positioning pin hole is set in gear chamber edge-of-part position, and this mounting hole usually adopts the two ends at mounting hole 12 to be provided with the aperture ratio stage casing and the positioning pin hole large securement head hole position 14(in 13 apertures is installed sees Fig. 5), in order to the head of placing screws or bolt to be installed.But because this two ends mounting hole site larger than middle section position aperture adding man-hour, the central position of position, two securement head holes 14 generation skew or concentricity precision are not high enough about causing easily, thereby the upper lower body that causes finally being installed on the gear chamber is installed the defectives such as Location accuracy is inadequate, installation is difficult.
The model utility content
The utility model exists position, up and down two the securement head holes concentricity precision that positioning pin hole is installed not high enough for solving existing gear chamber, difficulty is installed, the present situation such as positioning pin hole difficulty of processing height is installed and a kind of gear chamber that can improve of providing is installed the gear chamber of the concentricity precision of positioning pin hole and improved structure.
The utility model is to solve the problems of the technologies described above the concrete technological scheme that adopts to be: a kind of gear chamber is improved structure, comprise the gear chamber main body, it is characterized in that: the installation positioning pin hole on the gear chamber main body adopts through-hole structure, and the middle section position place at the installation positioning pin hole of through hole is embedded with spacer, and the upper and lower end face of spacer is apart from the upper and lower end face section of the leaving space length that positioning pin hole is installed.The installation positioning pin hole is easy to process, only needs directly process first through hole, and corresponding setting-in spacer just can reach and realizes lower body is installed the installation effect that is positioned on the gear chamber in through hole again; And reduced the difficulty of processing, improved product qualified rate.Improve to a greater extent the concentricity precision that has guaranteed to install positioning pin hole, improve the convenience of fitting operation and produce installation efficiency.
As preferably, has internal thread on the internal diameter of described spacer.Install simple and convenient.
As preferably, described spacer with the positioning pin hole interference fit is installed.Improve the integral installation tightness.
The beneficial effects of the utility model are: it is easy to process that positioning pin hole is installed, and reduced the difficulty of processing, improved product qualified rate.Improve to a greater extent the concentricity precision that has guaranteed to install positioning pin hole, improve the convenience of fitting operation and produce installation efficiency.
Description of drawings:
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the structural representation of gear chamber.
Fig. 2 be among Fig. 1 A-A to structural representation.
Fig. 3 is the partial schematic sectional view that B-B improves structure among Fig. 1 to the utility model gear chamber.
Fig. 4 is the structural representation when among Fig. 3 spacer being installed.
Fig. 5 be among Fig. 1 B-B in the prior art structural representation.
Embodiment
Among Fig. 1, Fig. 2, Fig. 3, the embodiment shown in Figure 4, a kind of gear chamber is improved structure, comprise gear chamber main body 10, installation positioning pin hole 11 on the gear chamber main body 10 adopts the through-hole structure (see figure 3), and be embedded with spacer 12(at the middle section position place of the installation positioning pin hole 11 of through hole and see Fig. 4), the upper and lower end face of spacer is apart from the identical height space distance of the upper and lower end face section of leaving that positioning pin hole is installed, the securement head that is used for installing screw or bolt.Have internal thread on the internal diameter of spacer 12, spacer 12 with positioning pin hole 11 interference fit are installed, upper lower body can install and fix by construction bolt or screw and spacer 12 and link together.
Although this paper has more used the terms such as installation positioning pin hole, spacer; But do not get rid of the possibility of using other term.Using these terms only is in order to describe more easily and explain essence of the present invention; They are construed to any additional restriction all is contrary with spirit of the present invention.
Claims (3)
1. a gear chamber is improved structure, comprise gear chamber main body (10), it is characterized in that: the installation positioning pin hole (11) on the gear chamber main body (10) adopts through-hole structure, and the middle section position place at the installation positioning pin hole (11) of through hole is embedded with spacer (12), and the upper and lower end face of spacer (12) is apart from the equal section of the leaving space length in the upper and lower end face that positioning pin hole (11) is installed.
2. improve structure according to gear chamber claimed in claim 1, it is characterized in that: have internal thread on the internal diameter of described spacer (12).
3. improve structure according to gear chamber claimed in claim 1, it is characterized in that: described spacer (12) and installation positioning pin hole (11) interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220515708 CN202900437U (en) | 2012-10-10 | 2012-10-10 | Improved structure of gear chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220515708 CN202900437U (en) | 2012-10-10 | 2012-10-10 | Improved structure of gear chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202900437U true CN202900437U (en) | 2013-04-24 |
Family
ID=48121116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220515708 Expired - Fee Related CN202900437U (en) | 2012-10-10 | 2012-10-10 | Improved structure of gear chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202900437U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682211A (en) * | 2021-02-03 | 2021-04-20 | 第一拖拉机股份有限公司 | Rearmounted box gear room assembly convenient to dismouting idler gear subassembly |
-
2012
- 2012-10-10 CN CN 201220515708 patent/CN202900437U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682211A (en) * | 2021-02-03 | 2021-04-20 | 第一拖拉机股份有限公司 | Rearmounted box gear room assembly convenient to dismouting idler gear subassembly |
| CN112682211B (en) * | 2021-02-03 | 2022-04-26 | 第一拖拉机股份有限公司 | Rearmounted box gear room assembly convenient to dismouting idler gear subassembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202900437U (en) | Improved structure of gear chamber | |
| CN201982394U (en) | Ultrahigh-pressure hydraulic solenoid reversing valve | |
| CN205544695U (en) | Motor cabinet and unmanned helicopter | |
| CN204805459U (en) | Vice and drive mechanism of accurate turnscrew flexonics | |
| CN103801735A (en) | Drill jig structure for processing lower inclined hole of plunger bushing | |
| CN204061460U (en) | A kind of fixed structure having Line Doorbell | |
| CN204692771U (en) | A kind of integrated steel pipe | |
| CN203711935U (en) | Drill jig structure for processing lower inclined holes in plunger sleeves | |
| CN203371228U (en) | Assembly table of assembly machine | |
| CN202691031U (en) | Oil-leakage-preventing pad | |
| CN202766796U (en) | Wind-guiding and feeding crank assembly for industrial sewing machine | |
| CN202812110U (en) | Bevel gear | |
| CN202768315U (en) | Vibration reduction type oil pump motor assembly of hydraulic bending machine | |
| CN202562537U (en) | Newly-structured fluid pipeline | |
| CN201988909U (en) | Installation limiting device | |
| CN203189686U (en) | Integrated type high transmission ratio box | |
| CN202301760U (en) | Speed reducer for molten steel car | |
| CN209469657U (en) | A kind of fastening structure of non-parallel mounting surface | |
| CN202851327U (en) | Working pump connecting device convenient to disassemble | |
| CN204127541U (en) | A kind of jointing plate | |
| CN106595797B (en) | Fuel-quantity transducer single hole mounting is blue | |
| CN205477069U (en) | Installation pocket door closer | |
| CN204415180U (en) | The integrated morphology of control desk and electric capacity in electric vehicle controller | |
| CN202707844U (en) | Working pump connecting device | |
| CN203132641U (en) | Adjustable fuel sensor assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20141010 |
|
| EXPY | Termination of patent right or utility model |