CN207122490U - Swing arm bolt device - Google Patents
Swing arm bolt device Download PDFInfo
- Publication number
- CN207122490U CN207122490U CN201720924203.9U CN201720924203U CN207122490U CN 207122490 U CN207122490 U CN 207122490U CN 201720924203 U CN201720924203 U CN 201720924203U CN 207122490 U CN207122490 U CN 207122490U
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- CN
- China
- Prior art keywords
- swing arm
- shaft part
- hole
- bolt device
- limit pin
- 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.)
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Abstract
The utility model discloses a kind of swing arm bolt device, belongs to engineering machinery accessory technical field, the swing arm bolt device, including the swing arm limiting plate being located on vehicle frame and the plug housing being located in swing arm, multiple limit pin holes are offered on swing arm limiting plate；It is coated with plug housing and stretches out termination through swing arm wing plate, the spacing bearing pin being installed in the limit pin hole；The limit pin hole is circular hole；Provided with the spacer that its core bore is taper in the circular hole.The utility model can solve existing swing arm bolt device and be carried out using the limit pin hole of ellipse spacing, cause to be difficult in swing arm rotation process higher to hole position and oval hole position requirement on machining accuracy, it is difficult to the problem of processing.
Description
Technical field
It the utility model is related to engineering machinery accessory technical field, especially a kind of latch in engineering machinery swing arm
Device.
Background technology
Swing arm is the slewing equipment being connected by oil cylinder with engineering machinery equipment in engineering machinery；During work, work
Make device has a variety of operating angles by the revolution of swing arm；And realize positioning work of the equipment under these operating angles
Make, it is necessary to using swing arm bolt device, a kind of swing arm bolt device as shown in Figure 1 and Figure 2, including the swing arm being located on vehicle frame
Limiting plate 01 and the plug housing 04 being located in swing arm, multiple oval limit pin hole k1 are offered on swing arm limiting plate 01；Insert
Key seat 04 is provided with its external part through swing arm wing plate 02, the latch 03 being installed in the limit pin hole k1；So, needs are worked as
When adjusting the operating angle of equipment, first control plugging pin oil cylinder to be exited from limit pin hole, swing arm is turned back to relevant position
Afterwards, then plugging pin oil cylinder is controlled to be inserted into corresponding limit pin hole；But because this swing arm bolt device is using ellipse
Limit pin hole carry out it is spacing, cause to be difficult in swing arm rotation process it is higher to hole position and oval hole position requirement on machining accuracy, it is difficult
The problem of to process.
Utility model content
The utility model provides a kind of swing arm bolt device, the device can solve existing swing arm bolt device using
The limit pin hole of ellipse carry out it is spacing, cause to be difficult in swing arm rotation process to hole position and oval hole position requirement on machining accuracy compared with
It is high, it is difficult to the problem of processing.
In order to solve the above problems, technical scheme is used by the utility model：This swing arm bolt device, including set
Swing arm limiting plate on vehicle frame and the plug housing being located in swing arm, multiple limit pin holes are offered on swing arm limiting plate；Latch
It is coated with seat and stretches out termination through swing arm wing plate, the spacing bearing pin being installed in the limit pin hole；The limit pin hole
For circular hole；Provided with the spacer that its core bore is taper in the circular hole.
In above-mentioned technical proposal, more specifically technical scheme can also be：The stretching termination of the spacing bearing pin is corresponding
In the pre-small post-large cone of the spacer core bore.
Further：The spacing bearing pin includes its one end and is installed on rear shaft part on plug housing, the stretching termination and
After described middle shaft part is provided between shaft part；The diameter dimension of shaft part is less than the diameter dimension of the middle shaft part after described；Positioned at institute
State and be set with spring on the rear shaft part in swing arm wing plate；Bullet is set with the rear shaft part in the swing arm wing plate
Spring.
By adopting the above-described technical solution, the utility model has the advantages that compared with prior art：
1st, due to including the swing arm limiting plate being located on vehicle frame and the plug housing being located in swing arm, being opened up on swing arm limiting plate
There are multiple limit pin holes；It is coated with plug housing and stretches out termination through swing arm wing plate, the limit being installed in the limit pin hole
Position bearing pin；The limit pin hole is circular hole；Provided with the spacer that its core bore is taper in the circular hole；So, spacing shape is changed
Formula, limit pin hole is changed to circular hole, is not only easy to align with hole position, accurate positioning, and circular hole machining accuracy is also easy to ensure；
2nd, because the termination of stretching out of spacing bearing pin is the pre-small post-large cone corresponding to spacer core bore；So, further
Strengthen the reliability of positioning；
3rd, rear shaft part on plug housing is installed on because spacing bearing pin includes its one end, it is stretched out between termination and rear shaft part
Provided with middle shaft part；The diameter dimension of shaft part is less than the diameter dimension of middle shaft part afterwards；It is set with the rear shaft part in swing arm wing plate
There is spring；So, the stretching termination of spacing bearing pin enters the spacer core bore automatic impaction spacer of taper under spring force,
Make positioning more firm, be not easy to rock.
Brief description of the drawings
Fig. 1 is the structural representation of existing swing arm bolt device.
Fig. 2 is Fig. 1 left view.
Fig. 3 is the structural representation of the utility model embodiment.
Fig. 4 is Fig. 3 left view.
Fig. 5 is the structural representation of the spacing bearing pin of the utility model embodiment.
Embodiment
The utility model is described in further detail for embodiment below in conjunction with the accompanying drawings：
Swing arm bolt device shown in Fig. 3, Fig. 4, Fig. 5, including the swing arm limiting plate 1 being fixed on vehicle frame and it is fixed on pendulum
Plug housing 4 on arm, multiple limit pin hole k are offered on swing arm limiting plate 1；Limit pin hole k is circular hole；Its core is provided with circular hole
Hole is the spacer 6 of taper；Its external part 31 is coated with plug housing 4 through swing arm wing plate 2, the limit being installed in limit pin hole k
Position bearing pin 3；Spacing bearing pin 3 is by stretching out termination 31, rear shaft part 33 and located at the middle shaft part stretched out between termination 31 and rear shaft part 33
32 are formed；One end of shaft part 33 is installed on plug housing 4 afterwards, and its other end is located in swing arm wing plate 2, and is set with spring 5；Afterwards
The diameter dimension of shaft part 33 is less than the diameter dimension of middle shaft part 32；The termination of stretching out of spacing bearing pin 3 is corresponding to the core bore of spacer 6
Pre-small post-large cone.The utility model changes spacing form, and limit pin hole is changed into circular hole, is not only easy to align with hole position,
Accurate positioning；Circular hole machining accuracy is easy to ensure；And the reliability of positioning is high.
Claims (3)
1. a kind of swing arm bolt device, including the swing arm limiting plate being located on vehicle frame and the plug housing being located in swing arm, swing arm limit
Multiple limit pin holes are offered on the plate of position；Be coated with plug housing its stretch out termination through swing arm wing plate, be installed on it is described spacing
Spacing bearing pin in pin-and-hole；It is characterized in that：The limit pin hole is circular hole；In the circular hole provided with its core bore for taper every
Set.
2. swing arm bolt device according to claim 1, it is characterised in that：The stretching termination of the spacing bearing pin is corresponding
In the pre-small post-large cone of the spacer core bore.
3. swing arm bolt device according to claim 1 or 2, it is characterised in that：The spacing bearing pin is worn including its one end
Rear shaft part on the plug housing, middle shaft part is provided between the stretching termination and the rear shaft part；Shaft part after described
Diameter dimension is less than the diameter dimension of the middle shaft part；Spring is set with the rear shaft part in the swing arm wing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720924203.9U CN207122490U (en) | 2017-07-27 | 2017-07-27 | Swing arm bolt device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720924203.9U CN207122490U (en) | 2017-07-27 | 2017-07-27 | Swing arm bolt device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207122490U true CN207122490U (en) | 2018-03-20 |
Family
ID=61612930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720924203.9U Active CN207122490U (en) | 2017-07-27 | 2017-07-27 | Swing arm bolt device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207122490U (en) |
-
2017
- 2017-07-27 CN CN201720924203.9U patent/CN207122490U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |