CN208830912U - A kind of closed type structure drill pipe clamp - Google Patents
A kind of closed type structure drill pipe clamp Download PDFInfo
- Publication number
- CN208830912U CN208830912U CN201821309505.6U CN201821309505U CN208830912U CN 208830912 U CN208830912 U CN 208830912U CN 201821309505 U CN201821309505 U CN 201821309505U CN 208830912 U CN208830912 U CN 208830912U
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- CN
- China
- Prior art keywords
- centralizer
- briquetting
- thrust block
- block pad
- drill pipe
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- 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 provides a kind of closed type structure drill pipe clamp, including centralizer, the rear end of centralizer is provided with the slips of wedge shape, thrust block pad is provided on the inclined-plane of slips, the rear end of thrust block pad is provided with briquetting, the rear end of briquetting is provided with pressure spring, the front end of thrust block pad is hinged on the piston rod of piston cylinder, piston cylinder is connected on high-pressure oil pump, and control valve is provided on the fluid pressure line between piston cylinder and high-pressure oil pump, briquetting is slidably arranged on the positioning pin rod on centralizer, briquetting is slidably arranged on the outer tube wall of centralizer, the outside wall surface of thrust block pad is slidably connected on the inner wall of shell.The embodiment of the utility model structure is simple, so that drilling rod has a safety feature at work.
Description
Technical field
The utility model relates to drilling equipment technical fields, and in particular to a kind of closed type structure drill pipe clamp.
Background technique
Engineer geological prospecting is the extensive technological means of coverage, wherein one of main equipment is exactly that engineering geology is surveyed
Prospecting bit machine is widely applied in fields such as railway tunnel, highway bridge, water conservancy and hydropower, architectural engineerings.
Traditional clamper double acting telescopic ram clamps drilling rod, and by the pressure of hydraulic system, when urgent feelings
When shutting down suddenly under condition, the pressure moment of hydraulic system, which reduces, makes slips that can not clamp drilling rod, and drilling rod is caused to fall damage, consequence
Than more serious.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of closed type structure drill pipe clamp, overcomes existing
Have a deficiency of technology, piston rod pressure be it is lasting, which is a kind of normally closed structure, can prevent drilling rod from falling suddenly, and
Structure is simple.
(2) technical solution
In order to achieve the above object, the utility model is achieved by the following technical programs:
A kind of closed type structure drill pipe clamp, including centralizer, the rear end of the centralizer are provided with the slips of wedge shape,
Thrust block pad is provided on the inclined-plane of the slips, the rear end of the thrust block pad is provided with briquetting, and the rear end of the briquetting is provided with
The front end of pressure spring, the thrust block pad is hinged on the piston rod of piston cylinder, and the piston cylinder connection is on high-pressure oil pump, and piston
Control valve is provided on fluid pressure line between cylinder and high-pressure oil pump, the briquetting is slidably arranged in the positioning pin rod on centralizer
On, the briquetting is slidably arranged on the outer tube wall of centralizer, and the outside wall surface of the thrust block pad is slidably connected at the inner wall of shell
On.
Evenly distributed latch is provided on the inner arc surface of slips, the shape and drilling rod of the latch are adapted.
The pressure spring is butterfly spring.
Positioning pin is provided on the thrust block pad.
Neck bush is provided between the inner wall and drilling rod of the centralizer.
(3) beneficial effect
The utility model embodiment provides a kind of closed type structure drill pipe clamp.Have following the utility model has the advantages that the brill
Rod holder is closure usually, unless pressure spring is broken, not so can not slough the chucking power to drilling rod, improves drilling rod and is working
When security performance, in addition the overall structure of the program is simple.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of closed type structure drill pipe clamp described in the utility model；
Fig. 2 is the structural schematic diagram of slips described in the utility model.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Referring to FIG. 1 to 2, the utility model provides a kind of closed type structure drill pipe clamp, including centralizer 1,
The rear end of centralizer 1 is provided with the slips 2 of wedge shape, and thrust block pad 3, the rear end setting of thrust block pad 3 are provided on the inclined-plane 21 of slips 2
There is briquetting 4, the rear end of briquetting 4 is provided with pressure spring 5, and the front end of thrust block pad 3 is hinged on the piston rod of piston cylinder 6, and piston cylinder 6 connects
Lead on high-pressure oil pump, and is provided with control valve on the fluid pressure line between piston cylinder 6 and high-pressure oil pump, the sliding setting of briquetting 4
On the positioning pin rod 7 on centralizer 1, briquetting 4 is slidably arranged on the outer tube wall of centralizer 1, the outside wall surface sliding of thrust block pad 3
It is connected on the inner wall of shell 8.
Drilling rod is inserted in centralizer 1, and pressure spring 5 pushes against briquetting 4, and briquetting 4 drives thrust block pad 3, so that thrust block pad 3 drives slips
2, so that slips 2 is pressed on drilling rod, so that drilling rod is to clamp when usual, so that being to clamp to drilling rod under normal pressure
, safety when work is improved, when dismounting drilling rod, piston cylinder 6 is filled with high pressure oil, so that the piston rod drive of piston cylinder 6 pushes away
It is moved after power block 3, balances out the elastic force of pressure spring 5, so that slips 2 sloughs the clamping action to drilling rod, can at this time dismantled
Drilling rod, the utility model structure is simple, to the good clamping effect of drilling rod, improves the security performance of drilling rod at work.
Preferably, evenly distributed latch 21 is provided on the inner arc surface of slips 2, the shape of latch 21 is mutually fitted with drilling rod
It answers, in this way can be bigger to the pressure of drilling rod when pressurizeing to drilling rod, so as to the good clamping effect of drilling rod；Pressure spring 5 is butterfly
Spring, the butterfly spring service life is higher, is more convenient for arranging；Positioning pin 9 is provided on thrust block pad 3 so that it is convenient at work, position
It is locked, so that security performance is higher；It is provided with neck bush between the inner wall and drilling rod of centralizer 1, can protect centralizer in this way
Inner wall will not scratch very much, usually only improve the service life of centralizer with replacement neck bush.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；Although referring to aforementioned reality
Example is applied the utility model is described in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and model of various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (5)
1. a kind of closed type structure drill pipe clamp, it is characterised in that: including centralizer, the rear end of the centralizer is provided with wedge
The slips of shape, is provided with thrust block pad on the inclined-plane of the slips, and the rear end of the thrust block pad is provided with briquetting, after the briquetting
End is provided with pressure spring, and the front end of the thrust block pad is hinged on the piston rod of piston cylinder, and the piston cylinder connection is in high-pressure oil pump
On, and control valve is provided on the fluid pressure line between piston cylinder and high-pressure oil pump, the briquetting is slidably arranged on centralizer
Positioning pin rod on, the briquetting is slidably arranged on the outer tube wall of centralizer, and the outside wall surface of the thrust block pad is slidably connected at
On the inner wall of shell.
2. closed type structure drill pipe clamp as described in claim 1, it is characterised in that: set on the inner arc surface of the slips
It is equipped with evenly distributed latch, the shape and drilling rod of the latch are adapted.
3. closed type structure drill pipe clamp as described in claim 1, it is characterised in that: the pressure spring is butterfly spring.
4. closed type structure drill pipe clamp as described in claim 1, it is characterised in that: be provided with positioning on the thrust block pad
Pin.
5. closed type structure drill pipe clamp as described in claim 1, it is characterised in that: the inner wall and drilling rod of the centralizer
Between be provided with neck bush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821309505.6U CN208830912U (en) | 2018-08-14 | 2018-08-14 | A kind of closed type structure drill pipe clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821309505.6U CN208830912U (en) | 2018-08-14 | 2018-08-14 | A kind of closed type structure drill pipe clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208830912U true CN208830912U (en) | 2019-05-07 |
Family
ID=66309325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821309505.6U Active CN208830912U (en) | 2018-08-14 | 2018-08-14 | A kind of closed type structure drill pipe clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208830912U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963078A (en) * | 2020-10-23 | 2020-11-20 | 胜利油田固邦石油装备有限责任公司 | Limiting device of casing centralizer |
-
2018
- 2018-08-14 CN CN201821309505.6U patent/CN208830912U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963078A (en) * | 2020-10-23 | 2020-11-20 | 胜利油田固邦石油装备有限责任公司 | Limiting device of casing centralizer |
| CN111963078B (en) * | 2020-10-23 | 2020-12-15 | 胜利油田固邦石油装备有限责任公司 | Limiting device of casing centralizer |
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