CN203769821U - Extendable pushing frame - Google Patents
Extendable pushing frame Download PDFInfo
- Publication number
- CN203769821U CN203769821U CN201420132201.2U CN201420132201U CN203769821U CN 203769821 U CN203769821 U CN 203769821U CN 201420132201 U CN201420132201 U CN 201420132201U CN 203769821 U CN203769821 U CN 203769821U
- Authority
- CN
- China
- Prior art keywords
- expansion link
- rod
- rear push
- connecting hole
- extension type
- 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 - Lifetime
Links
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 239000003245 coal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Abstract
The utility model discloses an extendable pushing frame. The extendable pushing frame comprises a rear pushing rod of a hollow structure, an extension rod is inserted in the rear pushing rod, a connector is hinged to the front end of the extension rod, multiple holes are formed in the extension rod, a connecting hole is formed at the front end of the rear pushing rod, and the connecting hole is connected with any one of the holes in the extension rod through a pin shaft. The connector can swing on the extension rod leftwards and rightwards flexibly, and the extendable pushing frame is simple in structure and convenient for length adjustment.
Description
Technical field
The utility model relates to a kind of coal mine hydraulic supporting parts, relates in particular to a kind of extension type passing frame.
Background technology
Push unit is the critical component of coal mine hydraulic supporting.Push unit complex structure of the prior art, length adjustment inconvenience.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in structure, length adjustment extension type passing frame easily.
The purpose of this utility model is achieved through the following technical solutions:
Extension type passing frame of the present utility model, comprise rear push-rod, described rear push-rod is hollow structure, in described rear push-rod, be inserted with expansion link, the front end of described expansion link is hinged with connector, described expansion link is provided with multiple holes, and the front end of described rear push-rod is provided with a connecting hole, and described connecting hole is connected by bearing pin with any one hole on described expansion link.
The technical scheme being provided by above-mentioned the utility model can be found out, the extension type passing frame that the utility model embodiment provides, because rear push-rod is hollow structure, in rear push-rod, be inserted with expansion link, the front end of expansion link is hinged with connector, and expansion link is provided with multiple holes, and the front end of rear push-rod is provided with a connecting hole, connecting hole is connected by bearing pin with any one hole on expansion link, simple in structure, length adjustment convenience.
Brief description of the drawings
The side structure schematic diagram of the extension type passing frame that Fig. 1 provides for the utility model embodiment;
The plane structure schematic diagram of the extension type passing frame that Fig. 2 provides for the utility model embodiment.
In figure: 1-connector, 2-expansion link, 3-rear push-rod.
Detailed description of the invention
To be described in further detail the utility model embodiment below.
Extension type passing frame of the present utility model, preferably detailed description of the invention is as shown in Figure 1 and Figure 2 for it:
Comprise rear push-rod, described rear push-rod is hollow structure, in described rear push-rod, be inserted with expansion link, the front end of described expansion link is hinged with connector, described expansion link is provided with multiple holes, the front end of described rear push-rod is provided with a connecting hole, and described connecting hole is connected by bearing pin with any one hole on described expansion link.
Hinged by vertical hinge between the front end of described expansion link and described connector.
The front end of described rear push-rod is provided with connecting hole position and is provided with reinforcing ring.
Multiple holes on described expansion link comprise three holes being located at described expansion link front portion and three holes being located at described expansion link rear portion.
Extension type passing frame of the present utility model, connector can left and right flexible swing on expansion link, does not worry having the interference of weld seam etc.; Expansion link, rear push-rod ratio in the past pushing frame structure intensity significantly increase; When normal operating condition, the hole B of expansion link is connected with rear push-rod, need to adjust beam-ends apart from time can be connected with rear push-rod with hole C by hole A, thereby reach the length that control expansion link stretches out, and then realize the adjustable of beam-ends distance.Hole D and hole E, as the connecting hole of transition bracket and face end support use, can realize all passing frames of whole fully-mechanized mining working identical like this, are conducive to the management of support spare part, can effectively avoid the mistake assembling of passing frame.When whole passing frame is damaged, only need to change wherein one, other part can continue to use, and has saved maintenance fund.
The above; it is only preferably detailed description of the invention of the utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (4)
1. an extension type passing frame, it is characterized in that, comprise rear push-rod, described rear push-rod is hollow structure, in described rear push-rod, be inserted with expansion link, the front end of described expansion link is hinged with connector, and described expansion link is provided with multiple holes, the front end of described rear push-rod is provided with a connecting hole, and described connecting hole is connected by bearing pin with any one hole on described expansion link.
2. extension type passing frame according to claim 1, is characterized in that, hinged by vertical hinge between the front end of described expansion link and described connector.
3. extension type passing frame according to claim 1 and 2, is characterized in that, the front end of described rear push-rod is provided with connecting hole position and is provided with reinforcing ring.
4. extension type passing frame according to claim 3, is characterized in that, the multiple holes on described expansion link comprise three holes being located at described expansion link front portion and three holes being located at described expansion link rear portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420132201.2U CN203769821U (en) | 2014-03-21 | 2014-03-21 | Extendable pushing frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420132201.2U CN203769821U (en) | 2014-03-21 | 2014-03-21 | Extendable pushing frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203769821U true CN203769821U (en) | 2014-08-13 |
Family
ID=51287021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420132201.2U Expired - Lifetime CN203769821U (en) | 2014-03-21 | 2014-03-21 | Extendable pushing frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203769821U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868839A (en) * | 2018-07-05 | 2018-11-23 | 中煤北京煤矿机械有限责任公司 | The U-shaped backing pin device of hydraulic support thrusting rod |
| CN109752237A (en) * | 2018-12-21 | 2019-05-14 | 中煤北京煤矿机械有限责任公司 | Beetle haulage system safety pin breaking test method |
-
2014
- 2014-03-21 CN CN201420132201.2U patent/CN203769821U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868839A (en) * | 2018-07-05 | 2018-11-23 | 中煤北京煤矿机械有限责任公司 | The U-shaped backing pin device of hydraulic support thrusting rod |
| CN109752237A (en) * | 2018-12-21 | 2019-05-14 | 中煤北京煤矿机械有限责任公司 | Beetle haulage system safety pin breaking test method |
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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: 20140813 |