阅读说明：本技术 万向联轴器与减振器一体化安装结构 (Universal coupling and shock absorber integrated mounting structure ) 是由 金立川 尹学超 吴连财 翟鹏 陈祥波 仵冰冰 李华晶 于 2020-06-16 设计创作，主要内容包括：本申请公开了万向联轴器与减振器一体化安装结构,包括万向联轴器,所述万向联轴器包括防护壳,还包括减振套管、若干弹簧及若干支撑块,所述减振套管一端通过螺纹连接跟防护壳相接,减振套管另一端用于跟螺杆泵螺纹连接配合,所述支撑块活动固定设置在减振套管的外壁上,所述弹簧设置在减振套管与所述支撑块之间。本发明具有如下有益效果：减振套管成为万向联轴器的一部分,且减振套管的两端分别用来连接防护壳及螺杆泵,实现了万向联轴器与减振器一体化,结构简单,使用方便,可靠性强,具有良好的通用性与可更换性,且减振套管同时兼备了进水节的功能,节省了材料及费用。(The application discloses universal joint and shock absorber integration mounting structure, including universal joint, universal joint includes the protecting crust, still includes damping sleeve, a plurality of spring and a plurality of supporting shoe, damping sleeve one end is met with the protecting crust through threaded connection, and the damping sleeve other end is used for cooperating with screw pump threaded connection, the supporting shoe activity is fixed to be set up on damping sleeve's outer wall, the spring set up damping sleeve with between the supporting shoe. The invention has the following beneficial effects: the vibration damping sleeve becomes a part of the universal coupling, and the two ends of the vibration damping sleeve are respectively used for connecting the protective shell and the screw pump, so that the integration of the universal coupling and the vibration damper is realized, the structure is simple, the use is convenient, the reliability is high, the universality and the replaceability are good, the vibration damping sleeve has the function of a water inlet joint, and the material and the cost are saved.)

1. The utility model provides a universal joint and shock absorber integration mounting structure, includes universal joint, universal joint includes the protecting crust, its characterized in that still includes damping sleeve pipe, a plurality of spring and a plurality of supporting shoe, damping sleeve pipe one end is met with the protecting crust through threaded connection, and the damping sleeve pipe other end is used for cooperating with screw pump threaded connection, the supporting shoe activity is fixed to be set up on damping sleeve pipe's outer wall, the spring set up damping sleeve pipe with between the supporting shoe.

2. The integral mounting structure of the universal coupling and the shock absorber according to claim 1, further comprising a pressing plate, wherein the pressing plate is fixedly disposed on the outer wall of the shock absorbing sleeve, and the supporting block is movably and fixedly disposed on the outer wall of the shock absorbing sleeve through the pressing plate.

3. The universal joint and damper integrated mounting structure according to claim 2, wherein the outer wall of the damping sleeve is provided with an annular recess, and the pressing plate is fixed in the annular recess.

4. The universal joint and damper integrated mounting structure according to claim 2, wherein said pressure plates have a plurality of pieces, and adjacent two pressure plates do not contact each other.

5. The universal coupling and damper integrated mounting structure according to claim 1, wherein the damping sleeve and the supporting block are provided with spring grooves, and two ends of the spring are respectively located in the spring grooves.

6. The integral mounting structure of the universal joint and the damper according to claim 1, wherein the support blocks are provided with support surfaces, and a height difference exists between the support blocks.

7. The integral mounting structure of a universal joint and a shock absorber according to claim 1, wherein said support block is provided with a support surface, and there is no height difference between said support block and said support block.

8. The universal joint and damper integrated mounting structure as claimed in claim 1, wherein a gap exists between said support blocks.

9. The integral mounting structure of a universal joint and a shock absorber according to claim 1, wherein said support blocks comprise a first support block and a second support block, said second support block being fixed to said first support block by means of screws.

Technical Field

The invention relates to the field of oil extraction equipment, in particular to an integrated mounting structure of a universal coupling and a shock absorber.

Background

The universal coupling and the screw pump are required to be used in the existing oil extraction equipment, the universal coupling and the screw pump are connected and fixed together during use, meanwhile, the vibration absorber can be mounted on the screw pump to achieve the vibration attenuation effect because the oil extraction equipment vibrates greatly during work, the vibration absorber is mounted on the screw pump in a welding mounting mode at present, and the technical problem that the vibration absorber is mounted on the screw pump is solved.

Disclosure of Invention

The invention provides an integrated mounting structure of a universal coupling and a shock absorber, aiming at the problems.

The technical scheme adopted by the invention is as follows:

the utility model provides a universal joint and shock absorber integration mounting structure, includes universal joint, universal joint includes the protecting crust, still includes damping sleeve pipe, a plurality of spring and a plurality of supporting shoe, damping sleeve pipe one end is met with the protecting crust through threaded connection, and the damping sleeve pipe other end is used for cooperating with screw pump threaded connection, the supporting shoe activity is fixed to be set up on damping sleeve pipe's outer wall, the spring set up damping sleeve pipe with between the supporting shoe.

Because the diameter of universal joint's protecting crust is unchangeable among the present oil production equipment, so consider to install the shock absorber on the protecting crust based on above-mentioned characteristic, specific protecting crust and screw pump all meet with the damping sleeve pipe through threaded connection's mode. Meanwhile, the traditional connection mode is that the screw pump is connected with the water inlet joint of the universal coupling, the water inlet joint is connected with the protective shell, the screw pump is directly connected with the vibration damping sleeve in the scheme, the vibration damping sleeve has the function of the water inlet joint, and materials and cost are saved. The traditional installation mode is that the vibration reduction sleeve is welded and fixed on the screw pump, and welding is usually done before leaving the factory, so the on-site inconvenient replacement, the scheme adopts the convenient on-site replacement of screw thread installation.

In conclusion, the damping sleeve becomes a part of the universal coupling, and the two ends of the damping sleeve are respectively used for connecting the protective shell and the screw pump, so that the universal coupling and the damper are integrated, the structure is simple, the use is convenient, the reliability is high, the universality and the replaceability are good, the damping sleeve has the functions of water inlet and saving materials and cost.

When the screw pump works normally, the vibration transmitted when the screw pump works can be transmitted to the vibration absorber, and the vibration absorbing effect is achieved through the action of the spring.

Optionally, the damping device further comprises a pressing plate, the pressing plate is fixedly arranged on the outer wall of the damping sleeve, and the supporting block is movably and fixedly arranged on the outer wall of the damping sleeve through the pressing plate.

The pressing plate is arranged to movably and fixedly install the supporting block on the outer wall of the damping sleeve, and the supporting block cannot be popped out by the spring.

Optionally, an annular concave is arranged on the outer wall of the vibration reduction sleeve, and the pressing plate is fixed in the annular concave.

Set up annular indent on damping sleeve's outer wall, set up the clamp plate in annular indent, this is for the stability of reinforcing supporting shoe on damping sleeve, and has reduced the external diameter, applicable in the oil well of little internal diameter.

Optionally, the pressing plates are provided with a plurality of blocks, and two adjacent pressing plates are not in contact with each other.

Because the pressure plate in the conventional scheme is a circular ring-shaped structure, the pressure plate with the structure has the following problems: the clearance between the shock absorber and the sleeve is small, so that the overflowing area is small, and well washing and thick oil passing are not facilitated; meanwhile, the phenomenon of clamping stagnation is easy to occur in the process of going into the well; the outer side of the cable has friction risk due to small clearance; in the scheme, a plurality of pressing plates are adopted, and the pressing plates are not contacted, so that the flow area is increased, and the well washing and the thick oil passing are facilitated; the occurrence of the clamping stagnation problem is reduced; and the reliability of the cable is protected.

Optionally, the damping sleeve and the supporting block are both provided with spring grooves, and two ends of the spring are respectively located in the spring grooves.

The spring groove is arranged to enable the spring to be stably positioned between the damping sleeve and the supporting block, and the spring is prevented from slipping.

Optionally, the supporting blocks are provided with supporting surfaces, and a height difference exists between the supporting blocks.

The supporting surface is used for contacting with the wall surface of the oil well casing pipe, the supporting surface is used for tightly propping against the inner wall of the oil well casing pipe, the contact area is large, and the vibration reduction effect is good. The height difference between the supporting blocks forms an eccentric structure damper, and the eccentric distance can be controlled by changing the heights of the supporting blocks.

Optionally, a supporting surface is arranged on the supporting block, and there is no height difference between the supporting block and the supporting block.

When the height difference does not exist between the supporting blocks, the supporting blocks are concentric structure dampers, and the eccentric structure dampers and the concentric structure dampers are respectively suitable for different oil wells.

Optionally, a gap exists between the supporting blocks.

There is the space between supporting shoe and the supporting shoe, just so guarantee when the supporting shoe all paste tight oil well sleeve pipe after, still have the space between oil well sleeve pipe and the damping sleeve pipe, this space exists makes the runner area increase, and is more smooth and easy during well washing.

Optionally, the support blocks include a first support block and a second support block, and the second support block is fixed on the first support block through a screw.

The first supporting block and the second supporting block are adopted to facilitate installation, and an integrated supporting block can be adopted for installation.

The invention has the beneficial effects that: the vibration damping sleeve becomes a part of the universal coupling, and the two ends of the vibration damping sleeve are respectively used for connecting the protective shell and the screw pump, so that the integration of the universal coupling and the vibration damper is realized, the structure is simple, the use is convenient, the reliability is high, the universality and the replaceability are good, the vibration damping sleeve has the function of a water inlet joint, and the material and the cost are saved.

Description of the drawings:

FIG. 1 is a universal joint and damper integrated mounting structure;

fig. 2 is a schematic diagram of the distribution of the first and second support blocks on the damping sleeve.

The figures are numbered: 1. damping sleeve pipe, 2, clamp plate, 3, first supporting shoe, 4, indent, 5, holding surface, 6, spring, 7, spring groove, 8, screw, 9, second supporting shoe, 10, protecting crust, 11, first centre of a circle, 12, the second centre of a circle.

The specific implementation mode is as follows:

the present invention will be described in detail below with reference to the accompanying drawings.

As shown in attached drawings 1 and 2, the integrated mounting structure of the universal coupling and the shock absorber comprises the universal coupling, the universal coupling comprises a protective shell 10, a shock absorption sleeve 1, a plurality of springs 6 and a plurality of supporting blocks, one end of the shock absorption sleeve 1 is connected with the protective shell 10 through threaded connection, the other end of the shock absorption sleeve 1 is matched with threaded connection of a screw pump, the supporting blocks are movably and fixedly arranged on the outer wall of the shock absorption sleeve 1, and the springs 6 are arranged between the shock absorption sleeve 1 and the supporting blocks.

Because the diameter of the protective shell 10 of the universal coupling in the existing oil production equipment is not changed, the vibration absorber is installed on the protective shell 10 based on the above characteristic consideration, and the specific protective shell 10 and the screw pump are connected with the vibration-absorbing sleeve 1 in a threaded connection mode. Meanwhile, the traditional connection mode is that the screw pump is connected with the water inlet joint of the universal coupling, the water inlet joint is connected with the protective shell 10, the screw pump is directly connected with the vibration reduction sleeve 1 in the scheme, the vibration reduction sleeve 1 has the function of the water inlet joint at the same time, and materials and cost are saved. The traditional installation mode is that the vibration reduction sleeve 1 is welded and fixed on the screw pump, and the welding is usually done before leaving the factory, so the replacement is inconvenient on site, and the scheme adopts the convenient-to-site replacement of the thread installation.

To sum up, damping sleeve 1 becomes a part of universal joint in this scheme, and damping sleeve 1's both ends are used for connecting protecting crust 10 and screw pump respectively, have realized universal joint and shock absorber integration, simple structure, convenient to use, the good reliability has good commonality and replaceability, and damping sleeve 1 has had the function of water inlet festival simultaneously, has saved material and expense.

When the screw pump works normally, the vibration transmitted when the screw pump works can be transmitted to the vibration absorber, and the vibration absorbing effect is achieved through the action of the spring 6.

As shown in the attached drawings 1 and 2, the damping sleeve further comprises a pressing plate 2, the pressing plate 2 is fixedly arranged on the outer wall of the damping sleeve 1, and the supporting block is movably and fixedly arranged on the outer wall of the damping sleeve 1 through the pressing plate 2.

The pressing plate 2 is provided to movably and fixedly mount the supporting block on the outer wall of the damping sleeve 1, and to prevent the supporting block from being ejected by the spring 6.

As shown in fig. 1 and 2, an annular indent 4 is formed on the outer wall of the damping sleeve 1, and the pressing plate 2 is fixed at the annular indent 4.

An annular indent 4 is provided on the outer wall of the damping sleeve 1, and the pressing plate 2 is provided in the annular indent 4, which is to enhance the stability of the supporting block on the damping sleeve 1. And the outer diameter is reduced, and the method is suitable for oil wells with small inner diameters.

As shown in the attached figures 1 and 2, the pressing plates 2 are provided with a plurality of blocks, and two adjacent pressing plates 2 are not contacted.

Because the pressure plate 2 in the conventional solution is a circular ring-shaped structure, the pressure plate with such a structure has the following problems: the clearance between the shock absorber and the sleeve is small, so that the overflowing area is small, and well washing and thick oil passing are not facilitated; meanwhile, the phenomenon of clamping stagnation is easy to occur in the process of going into the well; the outer side of the cable has friction risk due to small clearance; in the scheme, the plurality of pressing plates 2 are adopted, and the pressing plates 2 are not contacted, so that the flow area is increased, and the well washing and the thick oil passing are facilitated; the occurrence of the clamping stagnation problem is reduced; and the reliability of the cable is protected.

As shown in fig. 1 and 2, the damping sleeve 1 and the supporting block are both provided with a spring groove 7, and two ends of the spring 6 are respectively located in the spring groove 7.

The spring groove 7 is provided to stably hold the spring 6 between the damper bushing 1 and the support block, and to ensure that the spring 6 does not slip.

As shown in fig. 1 and 2, the supporting blocks are provided with supporting surfaces 5, and a height difference exists between the supporting blocks.

The supporting surface 5 is used for contacting with the wall surface of the oil well casing pipe, the supporting surface 5 is used for tightly propping against the inner wall of the oil well casing pipe, the contact area is large, and the vibration reduction effect is good. The height difference between the supporting blocks forms an eccentric structure damper, and the eccentric distance can be controlled by changing the heights of the supporting blocks.

Referring to fig. 2, a first circle center 11 and a second circle center 12 marked in the damping sleeve 1 are not overlapped, the first circle center 11 and the second circle center 12 are only used for describing that the supporting block forms the damper with an eccentric structure, and do not represent that two circles exist, and when the first circle center 11 and the second circle center 12 are overlapped together, the supporting block forms the damper with a concentric structure.

As shown in fig. 1 and 2, the supporting block is provided with a supporting surface 5, and there is no height difference between the supporting blocks.

When the height difference does not exist between the supporting blocks, the supporting blocks are concentric structure dampers, and the eccentric structure dampers and the concentric structure dampers are respectively suitable for different wells.

As shown in fig. 1 and 2, a gap exists between the supporting blocks.

There is the space between supporting shoe and the supporting shoe, just so guarantee when the supporting shoe all paste tight oil well sleeve pipe after, still have the space between oil well sleeve pipe and the damping sleeve pipe 1, this space exists makes the runner area increase, and is more smooth and easy during well washing.

As shown in fig. 1 and 2, the support blocks include a first support block 3 and a second support block 9, and the second support block 9 is fixed on the first support block 3 by a screw 8.

The first supporting block 3 and the second supporting block 9 are adopted to facilitate installation, and an integrated supporting block can be adopted to install.

As shown in fig. 1 and 2, the protective shell 10 is fixed with the damping sleeve 1 by means of screw connection. In the attached drawing 1, only the right protective shell 10 is shown, and actually the left side is also connected with a screw pump and is also in threaded connection, so that the screw pump on the left side is not shown in order to avoid the situation that the drawing is too dense.

In the embodiment, 4 supporting blocks are adopted, and meanwhile, the supporting blocks are provided with the inclined chamfer angle as can be seen from the attached drawing 1, and the inclined chamfer angle is arranged to reduce the resistance force applied in the process of going into the well.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, which is defined by the claims and their equivalents, and can be directly or indirectly applied to other related fields of technology.