CN201671574U - Column-clamping type hydraulic chunk - Google Patents
Column-clamping type hydraulic chunk Download PDFInfo
- Publication number
- CN201671574U CN201671574U CN2010202001824U CN201020200182U CN201671574U CN 201671574 U CN201671574 U CN 201671574U CN 2010202001824 U CN2010202001824 U CN 2010202001824U CN 201020200182 U CN201020200182 U CN 201020200182U CN 201671574 U CN201671574 U CN 201671574U
- Authority
- CN
- China
- Prior art keywords
- chuck
- chunk
- guide pin
- pin bushing
- roller
- 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
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Abstract
The utility model discloses a column-clamping type hydraulic chunk, which comprises a top cap and two split pressing plates, wherein the top cap can be used for limiting a guide sleeve of the chunk; a spring seat sleeved outside the guide sleeve of the chunk is fixedly connected below the split pressing plates and is internally provided with a plurality of groups of springs; the lower part of the spring seats is arranged in a clamping ring sleeved outside the guide sleeve of the chunk; the guide sleeve of the chunk is provided with two symmetrical guide sleeve roller grooves; roller bayonets are arranged at the corresponding parts of a clamping drill rod clamped in the guide sleeve of the chunk; the clamping ring is also provided with a clamping ring roller groove; a chunk piston is arranged at the lower end of the guide sleeve of the chunk; an outer ring at the upper end of the chunk piston surrounds a chunk oil cylinder; a sealing ring is arranged between the chunk piston and the chunk oil cylinder; and a pressure bearing is arranged between the chunk oil cylinder and the clamping ring. In the utility model, the clamping drill rod is reliably clamped by the roller; and an arc groove arranged on the clamping drill rod can prolong the service life of the clamping drill rod and cannot scrape the clamping drill rod.
Description
Technical field
The utility model relates to engineering drilling equipment, especially for the post cassette oild chuck of spindle-type core drill.
Background technology
In the present domestic rock-core borer, all kinds of rig series are various, and drilling technology also has nothing in common with each other, but on chuck structure, substantially all are to adopt butterfly spring chucking, and oil pressure unclamps, three slips self-centering formula forms.It is simple to have the chuck structure overall structure now, operating maintenance is convenient, but in use, skid, the scratch kelly, collapse some problems such as slips thereby cause easily because three slips, make the kelly wearing and tearing to the clamping of kelly and make that chuck clamps unreliable easily; Especially slips wearing and tearing are easy to cause the slips displacement, block kelly and can not reset.
Summary of the invention
The utility model purpose is to provide a kind of and can satisfies the rig kelly and clamp, unclamp, and simple in structure, and simple and convenient, the long service life of operating maintenance is not hindered the post cassette oild chuck of kelly.
For achieving the above object, the utility model can be taked following technical proposals: a kind of post cassette oild chuck, it comprises the top cover that the chuck guide pin bushing is played position-limiting action, below top cover, fixing two and splitting pressing plate, this is split in the circular trough that pressure board is located at chuck guide pin bushing upper end, splitting the fixedly connected spring base that is set in chuck guide pin bushing outside under the pressing plate, many group springs are housed in the spring base the inside, this spring bottom is installed in the holding ring that is set in chuck guide pin bushing outside;
Offer symmetrically arranged two guide pin bushing roller slots on this chuck guide pin bushing, the relevant position that is arranged in the clamping drilling rod in the chuck guide pin bushing also offers the roller bayonet socket, also offers the holding ring roller slot on the above-mentioned holding ring;
Chuck piston is equipped with in lower end at the chuck guide pin bushing, the chuck piston lower end is connected rig by flange, and other accepts part, the outer ring, upper end of chuck piston is around the chuck oil cylinder, there is the hydraulic fluid port that injects and flow out hydraulic oil chuck oil cylinder outside, between chuck piston and chuck oil cylinder, be provided with joint ring, between chuck oil cylinder and holding ring, be provided with pressure bearing.
Be equipped with dive key between this holding ring and the chuck guide pin bushing, holding ring only done on the chuck guide pin bushing slided up and down.
This splits pressing plate for semicircle.
This spring is six groups.
This roller bayonet socket is an arc groove.
Advantage of the present utility model is: the utility model post cassette oild chuck structure is very simple, and operating maintenance is very easy to.In addition, owing to adopt roller to clamp the clamping drilling rod, clamp very reliable.The design arc groove can prolong the application life of clamping drilling rod on the clamping drilling rod, simultaneously the clamping drilling rod is not caused scratch.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment.
The specific embodiment
As shown in Figure 1, the utility model has comprised the top cover 1 of position-limiting action, is fixing below top cover 1 by what two semicircular ring were formed and is splitting pressing plate 2, and this is split in the circular trough that pressing plate 2 is fastened on chuck guide pin bushing 8 upper ends.Splitting 2 times fixedly connected spring bases 4 that are set in chuck guide pin bushing 8 outsides of pressing plate, the spring 3 of six groups of big elastic force is housed in spring base 4 the insides, spring 3 bottoms are installed on the holding ring 5 that is set in chuck guide pin bushing 8 outsides, between holding ring 5 and chuck guide pin bushing 8, be equipped with dive key 6, holding ring 5 only done on chuck guide pin bushing 8 slided up and down.
Offer symmetrically arranged two guide pin bushing roller slots 81 on the chuck guide pin bushing 8, be built-in with cylindrical rollers 7 at roller slot 81, the relevant position that is arranged in the clamping drilling rod 13 in the chuck guide pin bushing 8 also offers roller bayonet socket 131, and this roller bayonet socket 131 is an arc groove in the present embodiment.Also offer holding ring roller slot 51 on the holding ring 5.
In the lower end of chuck guide pin bushing 8 chuck piston 9 is housed, chuck piston 9 lower ends are connected rig by flange, and other accepts part.The outer ring, upper end of chuck piston 9 is around chuck oil cylinder 10.There is the hydraulic fluid port 14 that injects and flow out hydraulic oil chuck oil cylinder 10 outsides.Be provided with joint ring 12 between chuck piston 9 and chuck oil cylinder 10, joint ring 12 plays the effect of chuck cylinder seal.Between chuck oil cylinder 10 and holding ring 5, be provided with pressure bearing 11.
When injecting hydraulic oil in the chuck oil cylinder 10, because chuck piston 9 is fixed by flange, under the hydraulic fluid pressure effect, the chuck oil cylinder 10 squeeze pressure bearing 11 that will move up, pressure bearing 11 transmits pressure and gives holding ring 5, holding ring 5 will compress spring 3 compressions, and corresponding moving up, make move on the holding ring roller slot 51 in the holding ring 5 with guide pin bushing roller slot 81 on same horizon, at this moment, move up and down by clamping drilling rod 13, the part of the roller 7 guide pin bushing roller slot 81 by chuck guide pin bushing 8 will be squeezed in the holding ring roller slot 51 of holding ring 5, realize unclamping of clamping drilling rod 13.
When emitting hydraulic oil in the chuck oil cylinder 10, limited upwards slip of spring base 4 owing to split pressing plate 2, under the elastic force effect of spring 3, holding ring 5 is subjected to a downward force effect and moves down, make the holding ring roller slot move away guide pin bushing roller slot 81 51 times, roller 7 enters in the roller bayonet socket 131 of guide pin bushing roller slot 81 and clamping drilling rod 13, realizes the clamping action to clamping drilling rod 13.
Claims (5)
1. post cassette oild chuck, it is characterized in that comprising the top cover that the chuck guide pin bushing is played position-limiting action, below top cover, fixing two and splitting pressing plate, this is split in the circular trough that pressure board is located at chuck guide pin bushing upper end, splitting the fixedly connected spring base that is set in chuck guide pin bushing outside under the pressing plate, in the spring base the inside many group springs are housed, this spring bottom is installed in the holding ring that is set in chuck guide pin bushing outside;
Offer symmetrically arranged two guide pin bushing roller slots on this chuck guide pin bushing, the relevant position that is arranged in the clamping drilling rod in the chuck guide pin bushing also offers the roller bayonet socket, also offers the holding ring roller slot on the above-mentioned holding ring;
Chuck piston is equipped with in lower end at the chuck guide pin bushing, the chuck piston lower end is connected rig by flange, and other accepts part, the outer ring, upper end of chuck piston is around the chuck oil cylinder, there is the hydraulic fluid port that injects and flow out hydraulic oil chuck oil cylinder outside, between chuck piston and chuck oil cylinder, be provided with joint ring, between chuck oil cylinder and holding ring, be provided with pressure bearing.
2. post cassette oild chuck according to claim 1 is characterized in that, is equipped with dive key between this holding ring and the chuck guide pin bushing.
3. post cassette oild chuck according to claim 1 is characterized in that, this splits pressing plate for semicircle.
4. post cassette oild chuck according to claim 1 is characterized in that this spring is six groups.
5. post cassette oild chuck according to claim 1 is characterized in that this roller bayonet socket is an arc groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202001824U CN201671574U (en) | 2010-05-24 | 2010-05-24 | Column-clamping type hydraulic chunk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202001824U CN201671574U (en) | 2010-05-24 | 2010-05-24 | Column-clamping type hydraulic chunk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201671574U true CN201671574U (en) | 2010-12-15 |
Family
ID=43328986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202001824U Expired - Fee Related CN201671574U (en) | 2010-05-24 | 2010-05-24 | Column-clamping type hydraulic chunk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201671574U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287147A (en) * | 2011-08-15 | 2011-12-21 | 李雪伟 | drill rod clamping device |
| CN103556958A (en) * | 2013-11-13 | 2014-02-05 | 长沙探矿机械厂 | Clamping structure for core drilling machine |
| CN103953300A (en) * | 2014-05-15 | 2014-07-30 | 佛山职业技术学院 | Drill rod chuck for hydraulic rock drilling rig |
-
2010
- 2010-05-24 CN CN2010202001824U patent/CN201671574U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287147A (en) * | 2011-08-15 | 2011-12-21 | 李雪伟 | drill rod clamping device |
| CN103556958A (en) * | 2013-11-13 | 2014-02-05 | 长沙探矿机械厂 | Clamping structure for core drilling machine |
| CN103556958B (en) * | 2013-11-13 | 2016-08-03 | 长沙探矿机械厂 | A kind of core-drill(ing) machine clamp structure |
| CN103953300A (en) * | 2014-05-15 | 2014-07-30 | 佛山职业技术学院 | Drill rod chuck for hydraulic rock drilling rig |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20140524 |