CN217761292U - Oil field pressure drive operation piston maintenance device - Google Patents
Oil field pressure drive operation piston maintenance device Download PDFInfo
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- CN217761292U CN217761292U CN202221726179.5U CN202221726179U CN217761292U CN 217761292 U CN217761292 U CN 217761292U CN 202221726179 U CN202221726179 U CN 202221726179U CN 217761292 U CN217761292 U CN 217761292U
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Abstract
The utility model relates to an oil field production instrument technical field, in particular to oil field is pressed and is driven operation piston and maintain device, its technical scheme is: including piston abrasionproof decreases device, piston abrasionproof decreases device includes cylinder liner and piston rod, cylinder liner inside center installation piston rod, the piston rod bottom is equipped with the external screw thread, internal thread hole mounting screw one is seted up to the piston rod outer wall, screw one passes the hole of vertical sliding sleeve lateral wall, vertical sliding sleeve suit is on the piston rod outer wall, the beneficial effects of the utility model are that: piston ring and piston sleeve use more corrosion-resistant material, and reduced the friction between piston body and the cylinder liner, make the two have longer life, utilize simple structure to fix the piston body on the piston rod, when guaranteeing to press the performance of driving the pump, be convenient for to the installation and the dismantlement of piston body.
Description
Technical Field
The utility model relates to an oil field production instrument technical field, in particular to oil field is pressed and is driven operation piston and maintain device.
Background
The existing pressure drive pump applies a hydraulic transmission principle, high-speed rotation mechanical energy of a motor is converted into pressure energy of hydraulic oil through a constant-power variable oil pump, and then the pressure energy of the hydraulic oil is directly converted into pressure energy of working liquid through a piston by a hydraulic reciprocating oscillator, so that a traditional mechanical transmission chain is replaced, a mechanical transmission link is reduced, and high-efficiency energy transmission is realized.
However, in the process of delivering drilling fluid by a pressure drive pump under a high pressure condition in oil field production, the pressure drive pump has extremely bad working conditions and strong corrosivity, so that a piston of the pump is easily damaged in relative motion with a cylinder sleeve, the service life of the piston greatly affects the working quality of the pressure drive pump, and the abrasion between the piston and the cylinder sleeve needs to be reduced to prolong the service life of the pressure drive pump; simultaneously, the piston that uses at present is mostly the design of integral type, and this just leads to when changing the piston of damage, and the flow is complicated and operate very difficultly, the change to the piston of being not convenient for.
Therefore, the design of the piston maintenance device for the oilfield pressure drive operation is necessary.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides an oil field is pressed and is driven operation piston and maintain device through the up-and-down motion that increases the pulley with the auxiliary piston rod at the piston rod outer wall, keeps the motion route of piston rod, reduces the friction between piston body and the cylinder liner to simplify the structure of piston, make it can dismantle more easily and install when having better performance, in order to solve the piston because the life that easily wearing and tearing lead to is short, and the problem that the piston change work of damage also is difficult to implement.
In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides an oil field is pressed and is driven operation piston and maintain device, includes piston abrasionproof and decrease the device, piston abrasionproof decreases the device and includes cylinder liner and piston rod, cylinder liner internal center installation piston rod, the piston rod bottom is equipped with the external screw thread, internal thread hole mounting screw one is seted up to the piston rod outer wall, screw one passes the hole of vertical sliding sleeve lateral wall, vertical sliding sleeve suit is on the piston rod outer wall.
Preferably, the installation pole is connected to vertical sliding sleeve outer wall both sides, installation pole front end installation pulley mount pad, pulley mount pad front end fluting installation pulley, the pulley rolls and installs in the spout.
Preferably, the two sliding grooves are arranged on two sides of the inner wall of the cylinder sleeve, two sides of the top of the cylinder sleeve are provided with second internal thread holes for mounting screws, and the second screws penetrate through holes in the upper surface of the limiting block.
Preferably, the front end of the piston rod is provided with a piston body, the piston body comprises a piston ring and a piston sleeve, the piston ring is a corrosion-resistant nodular iron casting with an annular clamping groove formed in the outer wall, and the piston clamping column is sleeved on the outer wall of the piston rod.
Preferably, a piston sleeve is installed in the clamping groove in the outer wall of the piston ring, the piston sleeve is made of corrosion-resistant perfluororubber, and an annular groove is formed in the outer wall of the piston sleeve.
Preferably, the outer wall of the piston rod is provided with a groove for installing a clamping ring body, through holes are formed in two sides of a fracture of the clamping ring body, the bottom of the piston rod is provided with a round cover, and the round cover is an iron ring with an inner thread formed in the inner wall.
The utility model has the advantages that:
1. the utility model has the advantages that the pulleys sliding up and down are arranged on the two sides of the piston rod, so that when the piston rod is supported, the contact between the piston and the inner wall of the cylinder sleeve can be reduced by reducing the position deviation of the piston rod in the horizontal direction during the up-and-down movement, the wear rate of the piston is reduced, and the service life of the piston is prolonged;
2. the piston sleeve is sleeved in the annular groove on the outer wall of the ring, so that the piston sleeve is convenient to mount and dismount, and the maintenance of the piston is more convenient;
3. the piston ring is a corrosion-resistant nodular iron casting, and the perfluorinated rubber with the same corrosion resistance is used as the piston sleeve, so that the piston ring and the perfluorinated rubber have longer service life, the frequency of damage and replacement of the piston is reduced, and the working quality of the pressure drive pump is further ensured;
4. the top of the piston ring is limited by the clamp ring body, so that the piston ring can be prevented from sliding on the piston rod, and the performance of the piston is influenced; the top of the piston ring is provided with the round cover, so that the piston ring is prevented from sliding downwards and is convenient to disassemble; under the combined action of the clamp ring body and the round cover, the position of the piston ring on the piston rod can be ensured to be fixed, and the working performance of the pressure drive pump is further ensured;
5. the utility model has the advantages of simple structure, convenient to detach and installation have guaranteed the performance of piston and the efficiency of maintaining.
Drawings
FIG. 1 is a block diagram provided by the present invention;
fig. 2 is a schematic view of the pulley installation provided by the present invention;
fig. 3 is a schematic view of the piston sleeve installation provided by the present invention;
FIG. 4 is a view showing a piston ring structure according to the present invention;
fig. 5 is a schematic view of a snap ring body provided by the present invention;
fig. 6 is a structure view of the round cover of the present invention.
In the figure: the piston wear prevention device 100, the cylinder sleeve 110, the piston rod 120, the external thread 121, the first screw 122, the vertical sliding sleeve 130, the mounting rod 131, the pulley mounting seat 132, the pulley 140, the sliding groove 150, the second screw 160, the limiting block 170, the piston body 200, the piston ring 210, the piston sleeve 220, the groove 221, the snap ring body 230, the through hole 231, the round cover 240 and the internal thread 241.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Embodiment 1, refer to fig. 1-6, the utility model provides a pair of oil field is pressed and is driven operation piston and maintain device, including piston anti-abrasion device 100, piston anti-abrasion device 100 includes cylinder liner 110 and piston rod 120, and cylinder liner 110 installs piston rod 120 in the center, and piston rod 120 bottom is equipped with external screw thread 121, and the internal thread hole mounting screw 122 is seted up to the outer wall of piston rod 120, and screw 122 passes the hole of vertical sliding sleeve 130 lateral wall, and vertical sliding sleeve 130 suit is on the outer wall of piston rod 120; the piston wear prevention device 100 mainly comprises a cylinder sleeve 110 and a piston rod 120, wherein the piston rod 120 is installed in the center inside the cylinder sleeve 110, the piston rod 120 can move up and down inside the cylinder sleeve 110, an external thread 121 is arranged at the bottom of the piston rod 120, the external thread 121 is combined with an internal thread 241 on the inner wall of a round cover 240 to play a role in installing the round cover 240 on the piston rod 120, and a screw 122 penetrates through a hole in the side face of the vertical sliding sleeve 130 and rotates in an internal thread hole in the outer wall of the piston rod 120 to play a role in fixing the vertical sliding sleeve 130 on the outer wall of the piston rod 120.
Two sides of the outer wall of the vertical sliding sleeve 130 are connected with mounting rods 131, the front end of each mounting rod 131 is provided with a pulley mounting seat 132, the front end of each pulley mounting seat 132 is provided with a groove for mounting a pulley 140, and the pulley 140 is arranged in a sliding groove 150 in a rolling manner;
the two sliding grooves 150 are arranged on two sides of the inner wall of the cylinder sleeve 110, two sides of the top of the cylinder sleeve 110 are provided with second screw holes 160, and the second screws 160 penetrate through holes in the upper surface of the limiting block 170; vertical sliding sleeve 130 plays the effect of connecting pulley mount pad 132 through installation pole 131, pulley mount pad 132 is through the slotted mode at the front end, play the effect of installation pulley 140, spout 150 plays for pulley 140 is spacing, and can not take place the effect of offset in the horizontal direction when guaranteeing that it slides from top to bottom, vertical sliding sleeve 130 passes through the pulley 140 of both sides, in the up-and-down motion of auxiliary piston rod 120, still play and avoid piston rod 120 to take place the slope when moving from top to bottom, and then reduce the effect of piston body 200 wearing and tearing.
The front end of the piston rod 120 is provided with a piston body 200, the piston body 200 comprises a piston ring 210 and a piston sleeve 220, the piston ring 210 is a corrosion-resistant nodular iron casting with an annular clamping groove on the outer wall, and the piston ring 210 is sleeved on the outer wall of the piston rod 120; a piston sleeve 220 is arranged in the clamping groove on the outer wall of the piston ring 210, the piston sleeve 220 is made of corrosion-resistant perfluororubber, and an annular groove is formed in the outer wall of the piston sleeve 220; piston rod 120 plays the effect of installation piston body 200, piston ring 210 and piston bush are the main component parts of piston body 200, wherein piston ring 210 is corrosion-resistant nodular cast iron, can prolong its life, set up ring groove at piston ring 210 outer wall, be convenient for block piston bush 220, the rate of corrosion can be reduced for perfluororubber to piston bush 220 material, in order to guarantee its life, reduce its frequency of damaging the change, it can increase the area of contact of piston bush to be equipped with the ring channel at piston bush 220 outer wall, promote its performance.
The outer wall of the piston rod 120 is provided with a groove for installing a clamp ring body 230, through holes 231 are formed in two sides of a fracture of the clamp ring body 230, the bottom of the piston rod 120 is provided with a round cover 240, and the round cover 240 is an iron round ring with an inner wall provided with an inner thread 241; piston rod 120 plays the effect of installation snap ring body 230 through seting up the recess at the outer wall, through-hole 231 is seted up to snap ring body 230 fracture both sides, be convenient for to the dismantlement and the installation of snap ring body 230, snap ring body 230 is installed at piston ring 210 top, play spacing effect, can prevent the slip of piston ring 210 on piston rod 120, dome 240 plays the effect of installing dome 240 in piston rod 120 bottom through the inter combination of internal thread 241 and external thread 121 of seting up on its inner wall, through the extrusion effect of dome 240 and snap ring body 230 to piston ring 210, play and fix piston ring 210 on the piston rod 120 outer wall, guarantee that it can not gliding effect from top to bottom.
The utility model discloses a use as follows: the technical personnel in the field are to sleeve two groups of vertical sliding sleeves 130 on the outer wall of the piston rod 120, slide the vertical sliding sleeves 130 until the holes on the outer wall are opposite to the internal thread holes on the piston rod 120, pass a screw 122 through the holes on the outer wall of the vertical sliding sleeve 130, then rotate in the internal thread holes on the outer wall of the piston rod 120, further fix the two vertical sliding sleeves 130 on the outer wall of the piston rod 120, then weld mounting rods 131 with proper length on both sides of the vertical sliding sleeve 130, connect a pulley mounting seat 132 with a groove at the front end of the mounting rod 131, finally install a pulley 140 in the groove of the pulley mounting seat 132, and ensure that the pulleys 140 on both sides can enter the sliding grooves 150 on both sides of the inner wall of the cylinder sleeve 110 and slide up and down without being blocked;
firstly, the snap ring body 230 is sleeved on the top of the piston rod 120 and pushed upwards, so that the snap ring body 230 slides into the groove on the outer wall of the piston rod 120 to play a role in preventing the piston ring 210 from sliding upwards; then, the plasticity of the piston sleeve 220 made of the perfluororubber material is utilized, the piston sleeve 220 is sleeved in an annular groove on the outer wall of the piston ring 210, then the piston ring 210 is sleeved on the piston rod 120, finally, the internal thread 241 and the external thread 121 are combined with each other, the round cover 240 is installed on the piston rod 120, the piston ring 210 is fixed under the combined action of the round cover 240 and the snap ring body 230, the piston ring is prevented from shifting in the up-and-down movement process of the piston rod 120 to influence the performance of a pressure driving pump, finally, the piston rod 120 provided with the pulley 140 and the piston body 200 is installed in the cylinder sleeve 110, the limiting blocks 170 are installed on two sides of the top of the cylinder sleeve to prevent the pulley 140 from derailing, and the screw II 160 penetrates through a hole on the surface of the limiting block 170 and then rotates in an internal thread hole on the top of the cylinder sleeve 110 to fix the limiting block 170;
when the piston sleeve 220 or the piston ring 210 needs to be replaced, the second screw 160 is rotated to remove the fixing of the limiting plate 170, then the limiting block 170 at the top of the cylinder sleeve 110 is removed, and then the piston rod 120 is pulled out of the cylinder sleeve 110; when the piston body 200 is disassembled, the round cap 240 is rotated reversely and then disassembled, the piston ring 210 can slide on the piston rod 120 after the supporting force of the round cap 240 is lost, and the piston ring 210 or the piston sleeve 200 can be replaced by a new piston ring 210 or piston sleeve 200 after the piston ring 210 is disassembled.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of the claimed invention as far as possible.
Claims (5)
1. The utility model provides an oil field is pressed and is driven operation piston and maintain device, includes piston wear prevention device (100), piston wear prevention device (100) include cylinder liner (110) and piston rod (120), its characterized in that: a piston rod (120) is installed in the center of the interior of the cylinder sleeve (110), an external thread (121) is arranged at the bottom of the piston rod (120), a first screw (122) is installed in an internal thread hole formed in the outer wall of the piston rod (120), the first screw (122) penetrates through a hole in the side wall of the vertical sliding sleeve (130), and the vertical sliding sleeve (130) is sleeved on the outer wall of the piston rod (120); the pulley is characterized in that mounting rods (131) are connected to two sides of the outer wall of the vertical sliding sleeve (130), a pulley mounting seat (132) is mounted at the front end of each mounting rod (131), a pulley (140) is mounted at the front end of each pulley mounting seat (132) in a groove mode, and the pulleys (140) are mounted in sliding grooves (150) in a rolling mode.
2. The oil field pressure drive operation piston maintenance device according to claim 1, characterized in that: the two sliding grooves (150) are arranged on two sides of the inner wall of the cylinder sleeve (110), two sides of the top of the cylinder sleeve (110) are provided with second internal thread holes for mounting screws (160), and the second screws (160) penetrate through holes in the upper surface of the limiting block (170).
3. The piston maintenance device for the oilfield pressure drive operation according to claim 1, wherein: the piston is characterized in that a piston body (200) is installed at the front end of the piston rod (120), the piston body (200) comprises a piston ring (210) and a piston sleeve (220), the piston ring (210) is a corrosion-resistant nodular iron casting with an annular clamping groove formed in the outer wall, and the piston ring (210) is sleeved on the outer wall of the piston rod (120).
4. The piston maintenance device for the oilfield pressure drive operation according to claim 3, wherein: a piston sleeve (220) is installed in a clamping groove in the outer wall of the piston ring (210), the piston sleeve (220) is made of corrosion-resistant perfluoro rubber, and an annular groove is formed in the outer wall of the piston sleeve (220).
5. The oil field pressure drive operation piston maintenance device according to claim 1, characterized in that: the piston rod (120) outer wall is seted up recess installation snap ring body (230), through-hole (231) are seted up to snap ring body (230) fracture both sides, piston rod (120) bottom installation dome (240), the iron ring of internal thread (241) is seted up for the inner wall in dome (240).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221726179.5U CN217761292U (en) | 2022-07-06 | 2022-07-06 | Oil field pressure drive operation piston maintenance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221726179.5U CN217761292U (en) | 2022-07-06 | 2022-07-06 | Oil field pressure drive operation piston maintenance device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217761292U true CN217761292U (en) | 2022-11-08 |
Family
ID=83870931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221726179.5U Active CN217761292U (en) | 2022-07-06 | 2022-07-06 | Oil field pressure drive operation piston maintenance device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217761292U (en) |
-
2022
- 2022-07-06 CN CN202221726179.5U patent/CN217761292U/en active Active
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