CN206550895U - A kind of polished rod caliper - Google Patents
A kind of polished rod caliper Download PDFInfo
- Publication number
- CN206550895U CN206550895U CN201621245444.2U CN201621245444U CN206550895U CN 206550895 U CN206550895 U CN 206550895U CN 201621245444 U CN201621245444 U CN 201621245444U CN 206550895 U CN206550895 U CN 206550895U
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- China
- Prior art keywords
- caliper body
- caliper
- fixed column
- polished rod
- retaining mechanism
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Abstract
The utility model discloses a kind of polished rod caliper, belong to oil field.The clamp include：First caliper body；The second caliper body intersected with the first caliper body in intersection；Axle for be movably connected in intersection the first caliper body and the second caliper body；The leading section of first caliper body is Curved, and the leading section of the second caliper body is Curved；The first retaining mechanism is connected with the inside of the rearward end of the first caliper body, and is connected with the inside of the rearward end of the second caliper body the second retaining mechanism；The first fixed column is connected with the middle part of the first caliper body, and is connected with the middle part of the second caliper body the second fixed column；Spring is cased with the outside of the outside of the first fixed column and the second fixed column.The utility model makes spring flick the rearward end of caliper body by being cased with spring on the outside of the first fixed column and the second fixed column, it is not necessary to apply the purpose that external force unloads lower caliper with regard to that can reach to clamp, i.e., time saving and laborsaving.
Description
Technical field
The utility model is related to oil field, more particularly to a kind of polished rod caliper.
Background technology
With the fast development of social economy, the demand to petroleum-based energy is on the increase, and thus causes the replacing frequency of packing
Rate also gradually increases.The replacing construction and the degree of wear of polished rod of the fixed effect packing of packing pressure cap and packing gland, institute
How to fix packing pressure cap and packing gland, the problem of extremely being paid close attention to as people in oil field.
At present, the method that fixed packing pressure cap and packing gland are used is the set inside being installed on polished rod with rubber
Cylinder, be specially：First packing pressure cap is moved upwards with packing gland along polished rod, then sleeve is enclosed on the outer wall of polished rod, finally will
Screw is screwed together through the screw hole of sleeve, sleeve is fastened on polished rod, thus just reach fixed packing pressure cap and
The purpose of packing gland.
Designer has found that prior art at least has problems with：
, it is necessary to which sleeve, which is unloaded from polished rod, needs to back out screw after packing has been changed, thus pulling off sleeves it is not only time-consuming but also
Arduously.
Utility model content
In order to solve the problem of pulling off sleeves are wasted time and energy in the prior art, the utility model embodiment provides a kind of light
Bar clamp.The technical scheme is as follows：
The utility model embodiment provides a kind of polished rod caliper, and the polished rod caliper includes：
First caliper body；
The second caliper body intersected with first caliper body in intersection；
Axle for be movably connected in the intersection first caliper body and second caliper body；
Wherein, the leading section of first caliper body is Curved, and the leading section of second caliper body is curved
It is curved；
The first retaining mechanism is connected with the inside of the rearward end of first caliper body, and in the second clamp sheet
The second retaining mechanism is connected with the inside of the rearward end of body；
Inner side in the middle part of first caliper body is connected with the first fixed column, and in the middle part of second caliper body
Inner side be connected with the second fixed column；
Spring is cased with the outside of the outside of first fixed column and second fixed column.
Preferably, first fixed column and second fixed column are symmetrical on the center line of the polished rod caliper.
Preferably, first fixed column is shaped as cylinder, and second fixed column is shaped as cylinder.
Preferably, first fixed column is connected by the way of welding with the middle part of first caliper body, and institute
The second fixed column is stated by the way of welding with the middle part of second caliper body to be connected.
Preferably, first fixed column is vertically connected on the middle part of first caliper body, and described second fixes
Post is vertically connected on the middle part of second caliper body.
Preferably, first retaining mechanism and center line pair of second retaining mechanism on the polished rod caliper
Claim.
Preferably, first retaining mechanism is made up of with second retaining mechanism a pair of oblique racks.
Preferably, first retaining mechanism is connected by the way of welding with the rearward end of first caliper body,
And second retaining mechanism is connected by the way of welding with the rearward end of second caliper body.
The beneficial effect brought of technical scheme that the utility model embodiment is provided is：
By directly controlling the rearward end of the first caliper body and the second caliper body to clamp polished rod, this is easy to operate
It is time saving；By setting the first retaining mechanism and second to lock respectively on the inside of the rearward end of the first caliper body and the second caliper body
Tight mechanism, while making the front end portion grips polished rod of the first caliper body and the second caliper body, by the first retaining mechanism and the
The locking of two retaining mechanisms is to keep polished rod caliper to the clamped condition of polished rod so that need not apply bigger when changing packing
Power clamps polished rod, saves time and effort；In addition, by being cased with bullet in the outside of the outside of the first fixed column and the second fixed column
Spring so that flick the rearward end of the first caliper body and the second caliper body when unloading polished rod caliper by the elastic force of spring,
The purpose that external force unloads polished rod caliper with regard to that can reach need not be applied to polished rod caliper, i.e., it is time saving and laborsaving.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the utility model embodiment
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the structural representation for the polished rod caliper that the utility model embodiment is provided；
Fig. 2 a are the structural representations for the first rubber that the utility model embodiment is provided；
The structural representation for the second rubber that Fig. 2 b the utility model embodiment is provided.
Wherein, it is as follows to each label declaration in accompanying drawing：
1 first caliper body；2 second caliper bodies；3 axles；4 first retaining mechanisms；5 second retaining mechanisms；6 first consolidate
Fixed column；7 second fixed columns；8 springs；9 first rubber, 901 first grooves, 902 second grooves；10 second rubber, 1001 the 3rd
Groove, 1002 the 4th grooves；
A crosspoints, the center line of B-B polished rod calipers.
Embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Type embodiment is described in further detail.
The utility model embodiment provides a kind of polished rod caliper, as shown in figure 1, the polished rod caliper includes：First clamp
Body 1；The second caliper body 2 intersected with the first caliper body 1 at the A of crosspoint；For movably connecting at the A of crosspoint
Connect the axle 3 of the first caliper body 1 and the second caliper body 2.
Wherein, the leading section of the first caliper body 1 is Curved, and the leading section of the second caliper body 2 is Curved；
The first retaining mechanism 4 is connected with the inside of the rearward end of first caliper body 1, and in the rearward end of the second caliper body 2
Side is connected with the second retaining mechanism 5；The first fixed column 6 is connected with the inner side at the middle part of the first caliper body 1, and in the second clamp
The inner side at the middle part of body 2 is connected with the second fixed column 7；Bullet is cased with the outside of the outside of the first fixed column 6 and the second fixed column 7
Spring 8.
The operation principle with regard to the polished rod caliper, which is given, below describes：
When needing to change packing, packing pressure cap and packing gland are first risen into certain distance along polished rod, then passed through
The rearward end of the first caliper body 1 and the second caliper body 2 is controlled to drive the first caliper body 1 and the second caliper body 2
Leading section clamps the polished rod below packing pressure cap and packing gland, while polished rod is clamped, will be located at the first clamp
The first retaining mechanism 4 on the inside of the rearward end of body 1 and the second retaining mechanism on the inside of the rearward end of the second caliper body 2
5 lockings；When having changed packing and needing to unload polished rod caliper, by clamping after the first caliper body 1 and the second caliper body 2
End is come the first retaining mechanism 4 and the second retaining mechanism 5 of staggering, then again by the outside and second for being enclosed on the first fixed column 6
The elastic force of the spring 8 in the outside of fixed column 7 flicks the rearward end of the first caliper body 1 and the rear end of the second caliper body 2
Portion, then again installs packing gland with packing pressure cap on the top of packing pressure box to extrude the packing in packing box to reach successively
Seal the effect of polished rod.
By directly controlling the rearward end of the first caliper body 1 and the second caliper body 2 to clamp polished rod, this operation side
Just it is time saving；By set respectively on the inside of the rearward end of the first caliper body 1 and the second caliper body 2 first retaining mechanism 4 with
Second retaining mechanism 5, while making the front end portion grips polished rod of the first caliper body 1 and the second caliper body 2, by the first locking
The retaining mechanism 5 of mechanism 4 and second locks to keep polished rod caliper to the clamped condition of polished rod so that need not be applied when changing packing
It is saves time and effort plus bigger power clamps polished rod；In addition, by the outside of the first fixed column 6 and the second fixed column 7
Outside be cased with spring 8 so that the first caliper body 1 and the second card are flicked when unloading polished rod caliper by the elastic force of spring 8
Clamp the rearward end of body 2, it is not necessary to apply the purpose that external force unloads polished rod caliper with regard to that can reach, i.e., time saving and province to polished rod caliper
Power.
As shown in figure 1, further, B-B pairs of the center line of the first fixed column 6 and the second fixed column 7 on polished rod caliper
Claim so that spring 8 will not be differed greatly due to the distance of the first fixed column 6, the second fixed column 7 and axle 3 and be weakened the first card
Clamp the effect that the rearward end of body 1 is flicked with the rearward end of the second caliper body 2.The utility model embodiment can contain multigroup
Fixed column, wherein every group of fixed column includes first fixed column 6 and second fixed column 7, and the place of first fixed column 6
The position at the middle part of the first caliper body 1 is with the position where the second fixed column 7 in the middle part of second caliper body 2 on polished rod caliper
Center line B-B.The group number of fixed column is set at the middle part of the first caliper body 1 and the middle part of the second caliper body 2, mainly with bullet
The elastic force of spring 8 is relevant, such as one group of fixed column is set in the utility model embodiment, because being enclosed on the outside of this group of fixed column
Spring 8 just effectively the rearward end of the first caliper body 1 and the rearward end of the second caliper body 2 can be flicked.
In practical operation, for the ease of the two ends of spring 8 to be respectively fitted over to outside and the second fixation of the first fixed column 6
First fixed column 6 is shaped to cylinder by the outside of post 7, the utility model embodiment, by the shape of the second fixed column 7
It is set to cylinder.Wherein, on the first fixed column 6 and the first caliper body 1 and the second fixed column 7 and the second caliper body
2 connected mode has a variety of, preferably, the first fixed column 6 is welded on the first caliper body 1 by the utility model embodiment
Middle part, the second fixed column 7 is welded on the middle part of the second caliper body 2, because welding is not only firmly but also conveniently；Shape on fixed column
Shape and size, the utility model embodiment are not limited, such as the external diameter of the fixed column in the utility model embodiment is 7mm
~9mm, the length of fixed column is 10mm~15mm.Further, in order that the first fixed column 6 is welded on more securely
The middle part of one caliper body 1 and the second fixed column 7 are welded on the middle part of the second caliper body 2 more securely, and the utility model is real
Apply that the first fixed column 6 in example is vertically connected on the middle part of the first caliper body 1 and the second fixed column 7 is vertically connected on second
The middle part of caliper body 2, to increase bonding area.
As shown in figure 1, further, the center line B- of the first retaining mechanism 4 and the second retaining mechanism 5 on polished rod caliper
B is symmetrical, i.e., when leading section and the front end portion grips polished rod of the second clamp 2 of the first caliper body 1, the first retaining mechanism 4 and
Second retaining mechanism 5, which can be contacted and can cooperated, plays a part of locking.The utility model embodiment can contain multigroup
Retaining mechanism, wherein every group of retaining mechanism includes first retaining mechanism 4 and second retaining mechanism 5, and first lock
The position of the rearward end of first caliper body 1 where tight mechanism 4 and the rearward end of the second caliper body 2 where the second retaining mechanism 5
Position is corresponding.But, if retaining mechanism group number is excessive, polished rod caliper locking is got up cumbersome, so this reality
One group of moderate strength only is set with the rearward end of the second caliper body 2 in the rearward end of the first caliper body 1 with new embodiment
Retaining mechanism, this group of retaining mechanism is met the requirement for locking polished rod caliper.
As shown in figure 1, further, the first retaining mechanism 4 is made up of with the second retaining mechanism 5 a pair of oblique racks,
To reach that the polished rod to different-diameter plays the purpose of locking polished rod caliper.Specifically, in the rearward end of the first caliper body 1
The side diagonal-cut rack opposite with each setting rack angle of inclination on the inside of the rearward end of the second caliper body 2, makes this group of diagonal-cut rack
It can cooperate, reach the purpose of the first caliper body 1 of locking and the second caliper body 2；For the polished rod of different-diameter,
By adjusting the angle between the first caliper body 1 and the second caliper body 2, so as to change the rack of diagonal-cut rack mutual cooperation
Number, to lock the polished rod of different-diameter.Wherein, the relevant parameter on diagonal-cut rack, the utility model embodiment is without limit
System, does not influence to lock polished rod caliper；First retaining mechanism 4 and the connected mode of the first caliper body 1 and the second locking
Mechanism 5 and the connected mode of the second caliper body 2 have a variety of, preferably, the first locking machine in the utility model embodiment
Structure 4 is connected by the way of welding with the middle part of the first caliper body 1 and the second retaining mechanism 5 is by the way of welding and the
The middle part of two caliper bodies 2 is connected.
In practical operation, if directly polished rod caliper is fastened on polished rod surface, can wear and tear polished rod, in order that polished rod
Do not worn and torn polished rod, and polished rod caliper is not contacted directly with polished rod surface, so the utility model embodiment is in polished rod caliper
Leading section inner side set rubber, as shown in figure 1, be specially：In the inner side of the leading section of the first caliper body 1, the first glue is set
Skin 9 and the second rubber 10 of inner side setting in the leading section of the second caliper body 2.On the first rubber 9 and the second rubber 10
Shape, more specifically as shown in Fig. 2 a and Fig. 2 b, in order that the first rubber 9 and the second rubber 10 can more effortlessly by
Polished rod caliper is clamped, and can set multiple in the discontiguous side in inner side of the first rubber 9 with the first caliper body 1 leading section
First groove 901, the second groove of side setting with the interior side contacts of the leading section of the first caliper body 1 in the first rubber 9
902, and in multiple 3rd grooves of the discontiguous side setting in inner side with the leading section of the second caliper body 2 of the second rubber 10
1001st, in the 4th groove 1002 of side setting with the interior side contacts of the leading section of the second caliper body 2 of the second rubber 10.
In summary, by setting the first locking respectively on the inside of the rearward end of the first caliper body and the second caliper body
Mechanism and the second retaining mechanism, make the first retaining mechanism and the second retaining mechanism lock to keep clamping of the polished rod caliper to polished rod
State so that need not apply bigger power to clamp polished rod when changing packing, it is saves time and effort；By being fixed first
The outside of post and the outside of the second fixed column are cased with spring so that flick first by the elastic force of spring when unloading polished rod caliper
The rearward end of caliper body and the second caliper body, i.e., it is time saving and laborsaving；In addition, by the way that retaining mechanism is set to have necessarily
The oblique rack of length, can play a part of locking to the polished rod of different-diameter.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (8)
1. a kind of polished rod caliper, the clamp include：
First caliper body (1)；
The second caliper body (2) intersected with first caliper body (1) at crosspoint (A) place；
For first caliper body (1) and second caliper body (2) of being movably connected at the crosspoint (A) place
Axle (3)；
Characterized in that, the leading section of first caliper body (1) is before Curved, and second caliper body (2)
End is Curved；
The first retaining mechanism (4) is connected with the inside of the rearward end of first caliper body (1), and in second clamp
The second retaining mechanism (5) is connected with the inside of the rearward end of body (2)；
Inner side in the middle part of first caliper body (1) is connected with the first fixed column (6), and in second caliper body
(2) inner side in the middle part of is connected with the second fixed column (7)；
Spring (8) is cased with the outside of the outside of first fixed column (6) and second fixed column (7).
2. polished rod caliper according to claim 1, it is characterised in that first fixed column (6) is fixed with described second
Post (7) is symmetrical on the center line (B-B) of the polished rod caliper.
3. polished rod caliper according to claim 1, it is characterised in that first fixed column (6) is shaped as cylinder,
And second fixed column (7) is shaped as cylinder.
4. polished rod caliper according to claim 1, it is characterised in that first fixed column (6) is by the way of welding
It is connected with the middle part of first caliper body (1), and second fixed column (7) is blocked by the way of welding with described second
The middle part for clamping body (2) is connected.
5. polished rod caliper according to claim 4, it is characterised in that first fixed column (6) is vertically connected on described
The middle part of first caliper body (1), and second fixed column (7) is vertically connected on the middle part of second caliper body (2).
6. polished rod caliper according to claim 1, it is characterised in that first retaining mechanism (4) and the described second lock
Tight mechanism (5) is symmetrical on the center line (B-B) of the polished rod caliper.
7. polished rod caliper according to claim 6, it is characterised in that first retaining mechanism (4) and the described second lock
Tight mechanism (5) is made up of a pair of oblique racks.
8. polished rod caliper according to claim 7, it is characterised in that first retaining mechanism (4) is using the side welded
Formula is connected with the rearward end of first caliper body (1), and second retaining mechanism (5) using welding by the way of with it is described
The rearward end of second caliper body (2) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621245444.2U CN206550895U (en) | 2016-11-18 | 2016-11-18 | A kind of polished rod caliper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621245444.2U CN206550895U (en) | 2016-11-18 | 2016-11-18 | A kind of polished rod caliper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206550895U true CN206550895U (en) | 2017-10-13 |
Family
ID=60368432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621245444.2U Active CN206550895U (en) | 2016-11-18 | 2016-11-18 | A kind of polished rod caliper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206550895U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107932420A (en) * | 2017-12-26 | 2018-04-20 | 合肥得润电子器件有限公司 | A kind of frock for aiding in snap ring installation |
-
2016
- 2016-11-18 CN CN201621245444.2U patent/CN206550895U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107932420A (en) * | 2017-12-26 | 2018-04-20 | 合肥得润电子器件有限公司 | A kind of frock for aiding in snap ring installation |
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