CN108068027A - Polished rod callipers - Google Patents
Polished rod callipers Download PDFInfo
- Publication number
- CN108068027A CN108068027A CN201611024035.4A CN201611024035A CN108068027A CN 108068027 A CN108068027 A CN 108068027A CN 201611024035 A CN201611024035 A CN 201611024035A CN 108068027 A CN108068027 A CN 108068027A
- Authority
- CN
- China
- Prior art keywords
- caliper body
- caliper
- polished rod
- fixed column
- support bar
- 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 57
- 239000007787 solid Substances 0.000 claims description 4
- 238000012856 packing Methods 0.000 abstract description 56
- 239000003208 petroleum Substances 0.000 abstract description 2
- 210000004907 gland Anatomy 0.000 description 20
- 210000000080 chela (arthropods) Anatomy 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
- B25B7/14—Locking means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a polished rod caliper, and belongs to the field of petroleum. The polish rod caliper includes: a first caliper body; a second caliper body intersecting the first caliper body at an intersection point; a shaft for movably connecting the first caliper body and the second caliper body at an intersection. The front end part of the first caliper body is bent, and the front end part of the second caliper body is bent; the inner side of the rear end part of the first caliper body is connected with a first locking mechanism, the inner side of the rear end part of the second caliper body is connected with a second locking mechanism, and the positions of the first locking mechanism and the second locking mechanism are corresponding; a spring is connected between the middle part of the first caliper body and the middle part of the second caliper body. According to the packing rod clamping device, the first locking mechanism and the second locking mechanism are arranged on the inner sides of the rear end parts of the first caliper body and the second caliper body, so that a polish rod can be clamped more easily when a packing is replaced; through set up the spring between first calliper body and second calliper body, polished rod calliper can be lifted off to laborsaving more.
Description
Technical field
The present invention relates to oil field, more particularly to a kind of polished rod caliper.
Background technology
With the fast development of social economy, the demand of petroleum-based energy is on the increase, thus causes the replacement frequency of packing
Rate also gradually increases.Packing pressure cap and the replacing construction of fixed effect packing of packing gland and the degree of wear of polished rod, institute
How to fix packing pressure cap and packing gland, become the problem of people extremely pay close attention in oil field.
At present, method is the set for having on polished rod inside installation rubber used by fixing packing pressure cap and packing gland
Cylinder, specially：First packing pressure cap with packing gland along polished rod is moved upwards, then sleeve is sleeved on to the outer wall of polished rod, finally will
Screw is screwed together through the screw hole of sleeve, and sleeve is made to be fastened on polished rod, so as to just reach fixed packing pressure cap with
The purpose of packing gland.
Inventor has found that the prior art has at least the following problems：
Sleeve, which is fastened on, needs screwing togather and unload sleeve from polished rod and needing to back out screw for screw on polished rod, therefore
The installation of sleeve is cumbersome and time consuming with dismantling.
The content of the invention
In order to solve the problems, such as that prior art operation is time-consuming and laborious, an embodiment of the present invention provides a kind of operation is time saving and energy saving
Polished rod caliper.The technical solution is as follows：
A kind of polished rod caliper, including：
First caliper body；
The second caliper body intersected with first caliper body in intersection；
For the axis of be movably connected in the intersection first caliper body and second caliper body；
Wherein, the front end of first caliper body is Curved, and the front end of second caliper body is curved
It is curved；
The first retaining mechanism is connected on the inside of the rear end portion of first caliper body, and in the second clamp sheet
The second retaining mechanism is connected on the inside of the rear end portion of body；
First retaining mechanism is in the position of first caliper body and second retaining mechanism described second
The position of caliper body is corresponding；
Spring is connected between in the middle part of the middle part of first caliper body and second caliper body.
Preferably, first retaining mechanism is made of with second retaining mechanism a pair of oblique rack.
Preferably, the first fixed column is connected in the inside middle portion of first caliper body, and in second clamp
The inside middle portion of body is connected with the second fixed column, and the both ends of the spring is made to be respectively fitted over first fixed column and described the
The outside of two solid columns.
Preferably, first fixed column in the position of first caliper body and second fixed column described the
The position of two caliper bodies is corresponding.
Preferably, first fixed column is welded on the inside in the middle part of first caliper body, and described second fixes
Column is welded on the inside in the middle part of second caliper body.
Preferably, first support bar is connected on the outside of the first caliper body front end, and in the described second card
Second support bar is connected on the outside of pincers body front end.
Preferably, the first support bar in the position of first caliper body and the second support bar described the
The position of two caliper bodies is corresponding.
Preferably, the first support bar, the second support bar, the front end and described the of first caliper body
The front end of two caliper bodies is in the same plane.
Preferably, the first support bar is welded on the outside of the first caliper body front end, and second support
Bar is welded on the outside of the second caliper body front end.
The advantageous effect that technical solution provided in an embodiment of the present invention is brought is：
Polished rod is clamped by the rear end portion for directly controlling the first caliper body and the second caliper body, this is easy to operate
It is time saving；By the way that the first retaining mechanism and second is set to lock respectively on the inside of the rear end portion 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
Two retaining mechanisms lock to keep clamped condition of the polished rod caliper to polished rod so that need not apply when replacing packing bigger
Power clamps polished rod, saves time and effort；In addition, by setting spring between the first caliper body and the second caliper body,
So that flicking the rear end portion of the first caliper body and the second caliper body when unloading polished rod caliper by the elastic force of spring, it is not required to
To apply external force to polished rod caliper with regard to that can achieve the purpose that unload polished rod caliper, i.e., it is time saving and laborsaving.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the structure diagram of polished rod caliper provided in an embodiment of the present invention；
Fig. 2 is the structure diagram of the oblique rack of polished rod caliper provided in an embodiment of the present invention；
Fig. 3 a are the structure diagrams of the first rubber provided in an embodiment of the present invention；
Fig. 3 b are the structure diagrams of the second rubber provided in an embodiment of the present invention.
Wherein, it is as follows to each label declaration in attached drawing：
1 first caliper body；2 second caliper bodies；3 axis；4 first retaining mechanisms；5 second retaining mechanisms；6 springs；7
One fixed column；8 second fixed columns；9 first support bars；10 second support bars；11 first rubber, 1,101 first grooves, 1,102
Two grooves；12 second rubber, 1201 the 3rd grooves, 1202 the 4th grooves；
A crosspoints, the center line of B-B polished rod calipers.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
An embodiment of the present invention provides a kind of polished rod caliper, as shown in Figure 1, the polished rod caliper includes：First caliper body
1；The second caliper body 2 intersected with the first caliper body 1 at the A of crosspoint；For being movably connected at the A of crosspoint
The axis 3 of one caliper body 1 and the second caliper body 2.
Wherein, the front end of the first caliper body 1 is Curved, and the front end of the second caliper body 2 is Curved；
The first retaining mechanism 4 is connected on the inside of the rear end portion of the first caliper body 1, and in the second caliper body 2
The second retaining mechanism 5 is connected on the inside of rear end portion；
First retaining mechanism the position of the first caliper body and the second retaining mechanism the second caliper body position phase
It is corresponding；
Spring 6 is connected between 2 middle part of the middle part of the first caliper body 1 and the second caliper body.
The operation principle with regard to the polished rod caliper, which is given, below describes：
When needing replacing packing, packing pressure cap and packing gland are first risen into certain distance along polished rod, then passed through
The rear end portion 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
Front end 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 1 rear end portion of body is locked with the second retaining mechanism 5 on the inside of 2 rear end portion of the second caliper body
Tightly；When having replaced packing and needing to unload polished rod caliper, pass through the rear end for clamping the first caliper body 1 and the second caliper body 2
Then portion relies on again positioned at the middle part and second of the first caliper body 1 come the first retaining mechanism 4 and the second retaining mechanism 5 of staggering
The elastic force of spring 6 between the middle part of caliper body 2 come flick the rear end portion of the first caliper body 1 with after the second caliper body 2
Then packing gland is installed with packing pressure cap the top of packing pressure box to squeeze the packing in packing box to reach by end successively again
To the effect of sealing polished rod.
It should be noted that the first retaining mechanism 4 in the position of the first caliper body 1 and the second retaining mechanism 5 second
The position of caliper body 2 is corresponding, refer to when the first caliper body 1 front end and the second clamp 2 front end portion grips polished rod when,
First retaining mechanism 4, which can be contacted with the second retaining mechanism 5 and can cooperated, plays the role of locking, such as can make first
Retaining mechanism 4 is in the position of the first caliper body 1 and the second retaining mechanism 5 in the position of the second caliper body 2 on polish rod clamp
The center line B-B of pincers is symmetrical.The embodiment of the present invention can contain multigroup retaining mechanism, wherein every group of retaining mechanism includes one the
One retaining mechanism 4 and second retaining mechanism 5, and the position of 1 rear end portion of the first caliper body where first retaining mechanism 4
It is corresponding with the position of 2 rear end portion of the second caliper body where the second retaining mechanism 5.But if retaining mechanism group number is excessive
If, polished rod caliper locking is made to get up cumbersome, so the embodiment of the present invention is only in the rear end portion and the of the first caliper body 1
The rear end portion of two caliper bodies 2 sets the retaining mechanism of one group of moderate strength, this group of retaining mechanism is enable to meet polished rod caliper
The requirement of locking.
As it can be seen that clamped polished rod by the rear end portion for directly controlling the first caliper body 1 and the second caliper body 2, this
It is easy to operate time saving；By setting the first locking machine respectively on the inside of the rear end portion of the first caliper body 1 and the second caliper body 2
4 and second retaining mechanism 5 of structure, while making the front end portion grips polished rod of the first caliper body 1 and the second caliper body 2, by
One retaining mechanism 4 and the second retaining mechanism 5 lock to keep clamped condition of the polished rod caliper to polished rod so that when replacing packing
Bigger power need not be applied to clamp polished rod, it is saves time and effort；In addition, by the first caliper body 1 and the second clamp
Spring 6 is set between body 2 so that flicks the first caliper body 1 and second by the elastic force of spring 6 when unloading polished rod caliper
The rear end portion of caliper body 2, need not to polished rod caliper apply external force with regard to that can achieve the purpose that unload polished rod caliper, i.e., it is time saving again
It is laborsaving.
In practical operation, in order to which more labour-saving operates polished rod caliper, make the rear end portion of the first caliper body 1
Length be more than the first caliper body 1 front end length and the second caliper body 2 rear end portion length be more than second
The length of the front end of caliper body 2 thus can more effortlessly clamp polished rod according to lever principle.In practical application
In, the cross section of the first caliper body 1 and the front end of the second caliper body 2 is shaped to it is square, to be conveniently operated；
The cross section of first caliper body 1 and the rear end portion of the second caliper body 2 is shaped to circle, that is, improves the first clamp
The intensity and service life of the rear end portion of 1 and second caliper body 2 of body, are also convenient for operating, and CN 202742234U are also disclosed
A kind of pumping well polish rod scale removal and packing box pressing cap fixed dual-purpose pincers, but the handle of the gripping tongs is processed with sheet deformation
Form, and the sheet metal is unclosed, there are handle strength it is not yielding enough the problem of, and to solve handle strong for the embodiment of the present invention
The problem of degree is not yielding enough.It is big on the first caliper body 1 and the size of the cross section of the front end of the second caliper body 2
Small, the embodiment of the present invention is not limited, such as before the first caliper body 1 and the second caliper body 2 of the embodiment of the present invention
The size of the cross section of end is (9mm~11mm) × (4mm~6mm)；On the first caliper body 1 and the second caliper body 2
Rear end portion cross section size, new embodiment of the present invention is not limited, and has polished rod caliper certain strong
Degree, such as the cross section of the rear end portion of the first caliper body 1 and the second caliper body 2 of new embodiment of the present invention are outer
Footpath is 7mm~9mm.
In practical operation, it can play and carry out the rear end portion of the first caliper body 1 and the rear end portion of the second caliper body 2
There are many devices of locking effect, such as respectively setting can in the inside of 2 rear end portion of the first caliper body 1 and the second caliper body
Coordinate and the iron hook of locking can be played the role of, but this iron hook can only play the polished rod of special diameter locking polished rod caliper
Effect, it is impossible to be applied on the polished rod of different-diameter, so the retaining mechanism of the embodiment of the present invention is arranged to certain length
Oblique rack, i.e. the first retaining mechanism 4 and the second retaining mechanism 5 are made of a pair of oblique rack.Specifically, in the first clamp
The oblique rack opposite with each setting rack angle of inclination on the inside of the rear end portion of the second caliper body 2 on the inside of the rear end portion of body 1,
This is enable to organize oblique rack to cooperate, achievees the purpose that lock the first caliper body 1 and the second caliper body 2；For not
With the polished rod of diameter, by adjusting the angle between the first caliper body 1 and the second caliper body 2, so as to change oblique rack phase
The rack number mutually coordinated, to achieve the purpose that the polished rod to different-diameter plays locking polished rod caliper.Wherein, on oblique tooth
The relevant parameter of item, the embodiment of the present invention are not limited, and do not influence to lock polished rod caliper, such as shown in Fig. 2, this hair
The length of oblique rack in bright embodiment is 15~25mm, a height of 1mm~3mm of the tooth of helical teeth, the space width of helical teeth be 4mm~
The height of 6mm and oblique rack is 5mm~7mm, wherein the height of oblique rack for oblique rack bottom top to tooth top
Distance.
In practical operation, by the both ends of spring 6 respectively with the middle part of the first caliper body 1 and the second caliper body 2
There are many modes of middle part connection, such as welding manner, but this mode is unfavorable for the replacement of spring 6, so the present invention is real
It applies example and is connected with the first fixed column 7 in the inside middle portion of the first caliper body 1, and connect in the inside middle portion of the second caliper body 2
The second fixed column 8 is connected to, the both ends of spring 6 is made to be respectively fitted over the outside of the first fixed column 7 and the second solid column 8, need not be used
Spring 6 and the first fixed column 7 and the second fixed column 8 are fixedly connected by any measure, because when replacing spring 6, only
Spring 6 need to be removed from the outside of the first fixed column 7 and the second fixed column 8.Material wherein on spring 6, the present invention
Embodiment is not limited, after spring 6 is enable effectively to flick rear end portion and the second caliper body 2 of the first caliper body 1
End.
As shown in Figure 1, further, the first fixed column 7 is in the position of the first caliper body 1 and the second fixed column 8 the
The position of two caliper bodies 2 is corresponding, i.e., spring 6 will not be differed due to the first fixed column 7, the second fixed column 8 with the distance of axis 3
Weaken the effect for flicking the rear end portion of the rear end portion of the first caliper body 1 and the second caliper body 2 greatly very much.The present invention is implemented
Example can contain multigroup fixed column, wherein every group of fixed column includes first fixed column 7 and second fixed column 8, and should
The position of the position at 1 middle part of the first caliper body and 2 middle part of the second caliper body where the second fixed column 8 where first fixed column 7
It puts corresponding.The group number of fixed column is set in the middle part of caliper body, it is mainly related with the elastic force of spring 6, such as present invention implementation
As soon as a group fixed column is set in example, because the spring 6 for being sleeved on the outside of this group of fixed column can be effectively by the first caliper body 1
Rear end portion and the rear end portion of the second caliper body 2 flick.Wherein, on the first fixed column 7 and the first caliper body 1 and
There are many two fixed columns 8 and the connection mode of the second caliper body 2, preferably, the embodiment of the present invention welds the first fixed column 7
The inside at 1 middle part of the first caliper body is connected on, the second fixed column 8 is welded on the inside at 2 middle part of the second caliper body, because welding
Not only securely but also conveniently；On the shape and size of fixed column, the embodiment of the present invention is not limited, such as in the embodiment of the present invention
Fixed column outer diameter for 7mm~9mm, the length of fixed column is 10mm~15mm.
In practical operation, the outer diameter of packing gland and packing pressure cap is more than the outer diameter of polished rod, the front end of polished rod caliper
Outer diameter be slightly larger than the outer diameter of polished rod, such as polished rod outer diameter for 28mm, and the outer diameter of packing gland is about 40mm, and packing pressure
The outer diameter of cap is more than the outer diameter of packing gland, if packing gland and packing pressure cap to be directly placed on to the front end meeting of polished rod caliper
There is the situation that packing gland is contacted with packing pressure cap due to the gravimetric tilt of itself with polished rod surface, abrasion polished rod can be caused
Consequence, so the embodiment of the present invention is connected with first support bar 9 on the outside of 1 front end of the first caliper body, and in the second card
Second support bar 10 is connected on the outside of pincers 2 front end of body, packing gland and packing pressure cap are placed on first support bar 9 and the
On two supporting rods 10, contacted to avoid packing gland with packing pressure cap because tilting with polished rod surface.And CN 202742234U
Also disclose that a kind of pumping well polish rod scale removal and packing box pressing cap fixed dual-purpose pincers, but there are packing pressure cap due to the weight of itself
The problem of situation that power inclination is contacted with polished rod surface is so as to cause abrasion polished rod, and the embodiment of the present invention solves packing pressure cap
The problem of wearing polished rod.
As shown in Figure 1, further, first support bar 9 is in the position of the first caliper body 1 and second support bar 10 the
The position of two caliper bodies 2 is corresponding, i.e., first support bar 9 in the position of the first caliper body 1 and second support bar 10 the
The position of two caliper bodies 2 is symmetrical on the center line B-B of polished rod caliper, and packing gland and packing pressure are supported to stablize
Cap.The embodiment of the present invention can contain multigroup supporting rod, wherein every group of supporting rod includes a first support bar 9 and one second
Supporting rod 10, and the outer side of 1 front end of the first caliper body where the first support bar 9 and second support bar 10 are located at second
Position on the outside of 2 front end of caliper body corresponds to, such as the embodiment of the present invention sets one group on the outside of the front end of polished rod caliper
Supporting rod.In order to which first support bar 9 and second support bar 10 is enable effectively to support packing gland and packing pressure cap, avoid changing
Occurs the situation that packing gland is tilted with packing pressure cap or slid from supporting rod during packing, the embodiment of the present invention is by the
One supporting rod 9, second support bar 10, the front end of the front end of the first caliper body 1 and the second caliper body 2 are same flat
In face.Wherein, the connection on 10 and second caliper body 2 of 9 and first caliper body 1 of first support bar and second support bar
There are many modes, preferably, first support bar 9 is welded on the outside of 1 front end of the first caliper body by the embodiment of the present invention,
And second support bar 10 is welded on the outside of 2 front end of the second caliper body, because welding is not only securely but also conveniently；On supporting rod
Shape and size, the embodiment of the present invention is not limited, enable supporting rod effectively support packing gland with packing pressure cap i.e.
Can, such as supporting rod in the embodiment of the present invention is cylinder, and its outer diameter is 5mm~7mm, length is 20mm~30mm.
In practical operation, if directly polished rod caliper is fastened on polished rod surface, polished rod can be worn, in order to make polished rod
Polished rod is not worn, polished rod caliper is not contacted directly with polished rod surface, so the embodiment of the present invention is before polished rod caliper
The inside of end sets rubber, as shown in Figure 1, being specially：In the inside of 1 front end of the first caliper body, the first rubber 11 is set
And the inside of the front end in the second caliper body 2 sets the second rubber 12.On the first rubber 11 and the second rubber 12
Shape, more specifically as best seen in figs. 3a and 3b, in order to enable the first rubber 11 and the second rubber 12 more effortlessly by light
Bar clamp clamp, and can be set in the discontiguous one side in inside of the first rubber 11 and the first caliper body 1 front end multiple
First groove 1101, the second groove of one side setting with the interior side contacts of 1 front end of the first caliper body in the first rubber 11
It 1102 and is set in the discontiguous one side in inside of the second rubber 12 and the second caliper body 2 front end multiple three recessed
Slot 1201, the 4th groove 1202 of one side setting with the interior side contacts of 2 front end of the second caliper body in the second rubber 12.And
202742234 U of CN also disclose that a kind of pumping well polish rod scale removal and packing box pressing cap fixed dual-purpose pincers, but in the gripping tongs
Binding clip in be provided with arc and scrape dirty tooth, the binding clip there are the gripping tongs directly contacts to wear asking for polished rod with polished rod surface
Topic, and the embodiment of the present invention solves the problems, such as that clamp are directly contacted with polished rod surface.
In conclusion by setting the first locking respectively on the inside of the rear end portion 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 be locked to keep polished rod caliper to polished rod
Clamped condition so that more laborsaving when replacing packing to clamp polished rod；By in the first caliper body and the second caliper body
Between spring is set so that flick the first caliper body and the second caliper body by the elastic force of spring when unloading polished rod caliper
Rear end portion, can more effortlessly unload polished rod caliper；It is solid by being connected with first in the inside middle portion of the first caliper body
Fixed column, and the second fixed column is connected in the inside middle portion of the second clamp sheet, the both ends of spring is made to be respectively fitted over the first fixed column
The outside for consolidating column with second, convenient for the replacement of spring；In addition, by being connected with first on the outside of the first caliper body front end
Strut, and second support bar is connected on the outside of the second caliper body front end, to play a supportive role to packing gland.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modifications, equivalent replacements and improvements are made should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of polished rod caliper, the polished rod caliper includes：
First caliper body (1)；
The second caliper body (2) intersected with first caliper body (1) at crosspoint (A)；
For first caliper body (1) and second caliper body (2) of being movably connected at the crosspoint (A)
Axis (3)；
It is characterized in that, the front end of first caliper body (1) is Curved, and before second caliper body (2)
End is Curved；
The first retaining mechanism (4) is connected on the inside of the rear end portion of first caliper body (1), and in second clamp
The second retaining mechanism (5) is connected on the inside of the rear end portion of body (2)；
First retaining mechanism (4) is in the position of first caliper body (1) with second retaining mechanism (5) described
The position of second caliper body (2) is corresponding；
Spring (6) is connected between the middle part of first caliper body (1) and the middle part of second caliper body (2).
2. polished rod caliper according to claim 1, which is characterized in that first retaining mechanism (4) and the described second lock
Tight mechanism (5) is made of a pair of oblique rack.
3. polished rod caliper according to claim 1, which is characterized in that in the inside middle portion of first caliper body (1)
The first fixed column (7) is connected with, and the second fixed column (8) is connected in the inside middle portion of second caliper body (2), makes institute
The both ends for stating spring (6) are respectively fitted over first fixed column (7) and the outside of the described second solid column (8).
4. polished rod caliper according to claim 3, which is characterized in that first fixed column (7) is in first clamp
The position of body (1) is corresponding in the position of second caliper body (2) with second fixed column (8).
5. polished rod caliper according to claim 3, which is characterized in that first fixed column (7) is welded on described first
Inside in the middle part of caliper body (1), and second fixed column (8) is welded on the inside in the middle part of second caliper body (2).
6. polished rod caliper according to claim 1, which is characterized in that the outside of the first caliper body (1) front end
First support bar (9) is connected with, and second support bar (10) is connected on the outside of second caliper body (2) front end.
7. polished rod caliper according to claim 6, which is characterized in that the first support bar (9) is in first clamp
The position of body (1) is corresponding in the position of second caliper body (2) with the second support bar (10).
8. polished rod caliper according to claim 7, which is characterized in that the first support bar (9), the second support bar
(10), the front end of the front end of first caliper body (1) and second caliper body (2) is in the same plane.
9. polished rod caliper according to claim 8, which is characterized in that the first support bar (9) is welded on described first
The outside of caliper body (1) front end, and the second support bar (10) is welded on the second caliper body (2) front end
Outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611024035.4A CN108068027A (en) | 2016-11-18 | 2016-11-18 | Polished rod callipers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611024035.4A CN108068027A (en) | 2016-11-18 | 2016-11-18 | Polished rod callipers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108068027A true CN108068027A (en) | 2018-05-25 |
Family
ID=62160979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611024035.4A Pending CN108068027A (en) | 2016-11-18 | 2016-11-18 | Polished rod callipers |
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| CN (1) | CN108068027A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2058323U (en) * | 1989-08-29 | 1990-06-20 | 黄荣初 | Strutting device for pelvis cutting off bone |
| CN2850835Y (en) * | 2005-12-03 | 2006-12-27 | 齐鸿祥 | Antiskid pincer for changing pumping rod stuffing |
| CN200974195Y (en) * | 2006-10-13 | 2007-11-14 | 孙玉春 | Polish rod caliper |
| CN201015848Y (en) * | 2007-03-08 | 2008-02-06 | 上海昆杰五金工具有限公司 | Self-locked and automatic self-unlocked large vice |
| CN201573127U (en) * | 2009-12-26 | 2010-09-08 | 崔连意 | Double-shaft pincers |
| CN202742234U (en) * | 2012-08-02 | 2013-02-20 | 刘长斌 | Dual-purpose tongs for polish rod descaling and packing box pressing cap fixing of pumping well |
| CN203636757U (en) * | 2013-12-31 | 2014-06-11 | 新疆新易通石油科技有限公司 | Fastening device for polymer injection pump packing box gland |
| CN204135915U (en) * | 2014-09-26 | 2015-02-04 | 中国石油化工股份有限公司 | Packing box pressing cap, Glan hang fixing pincers |
| CN205588192U (en) * | 2016-03-02 | 2016-09-21 | 中国石油化工股份有限公司 | Cap locator is pressed to oil well packing box |
-
2016
- 2016-11-18 CN CN201611024035.4A patent/CN108068027A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2058323U (en) * | 1989-08-29 | 1990-06-20 | 黄荣初 | Strutting device for pelvis cutting off bone |
| CN2850835Y (en) * | 2005-12-03 | 2006-12-27 | 齐鸿祥 | Antiskid pincer for changing pumping rod stuffing |
| CN200974195Y (en) * | 2006-10-13 | 2007-11-14 | 孙玉春 | Polish rod caliper |
| CN201015848Y (en) * | 2007-03-08 | 2008-02-06 | 上海昆杰五金工具有限公司 | Self-locked and automatic self-unlocked large vice |
| CN201573127U (en) * | 2009-12-26 | 2010-09-08 | 崔连意 | Double-shaft pincers |
| CN202742234U (en) * | 2012-08-02 | 2013-02-20 | 刘长斌 | Dual-purpose tongs for polish rod descaling and packing box pressing cap fixing of pumping well |
| CN203636757U (en) * | 2013-12-31 | 2014-06-11 | 新疆新易通石油科技有限公司 | Fastening device for polymer injection pump packing box gland |
| CN204135915U (en) * | 2014-09-26 | 2015-02-04 | 中国石油化工股份有限公司 | Packing box pressing cap, Glan hang fixing pincers |
| CN205588192U (en) * | 2016-03-02 | 2016-09-21 | 中国石油化工股份有限公司 | Cap locator is pressed to oil well packing box |
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