CN207701089U - A kind of super helicoid hydraulic motor - Google Patents

Abstract

The utility model discloses a kind of super helicoid hydraulic motors, including anti-lost conversion assembly, motor assembly, universal axle assembly and driving-shaft assembly, the anti-lost conversion assembly includes anti-lost crossover sub, anti-lost disk and anti-lost connecting rod, anti-lost crossover sub is internally provided with anti-lost disk, the upper end of anti-lost connecting rod is inserted in anti-lost disk and is fixed by standby tight nut, and the other end of anti-lost connecting rod and the rotor upper end of motor assembly connect.The utility model is simple in structure, securely and reliably, it can not only realize the rotary drilling of conventional screw drilling tool and curved shell directional drilling function, it is also particularly suitable the drilling applications (being short radius drilling tool) of the compound rotating speed of superelevation under super large discharge, super large torque, super large bit pressure, heavy camber simultaneously, with with the comparable service life of conventional screw, the helicoid hydraulic motor scope of application is had greatly expanded, bit speed can be effectively improved.

Description

A kind of super helicoid hydraulic motor

Technical field

The utility model is related to a kind of super helicoid hydraulic motors, belong to drilling technology field.

Background technology

Currently, in wellbore construction operation at home and abroad, helicoid hydraulic motor is as a kind of warp in straight well, directional well and horizontal well Ji, sturdy durable power drilling tool, use are fairly common.But with drilling technology level and technological equipment, drill bit Deng development level it is higher and higher, and countries in the world in order to environmental requirement, improve yield, old well reform, ultradeep well, marine drilling With the prospect pit of probing new block, complex degree of stratum is higher and higher, super hard-rock layer, bad ground are more and more, particularly drilling well The index request that raises speed is higher and higher, so the mud motor helicoid hydraulic motor to drilling well proposes increasingly higher demands, Also there are similar correlative study in foreign countries, have obtained certain applications, and the actual demand of our countries is also more and more.

Currently, traditional helicoid hydraulic motor is during carrying out heavy duty service, while ensureing bit speed, if encountered When percussion drill operates or continues big bit pressure, high torque drilling well, helicoid hydraulic motor can then be made by larger axial compressive force and flutter failure Helicoid hydraulic motor and drilling life of bit substantially reduce.

Utility model content

The purpose of the utility model is to provide a kind of super screw rods that can bear high bit pressure, large torque, high composite drill Drilling tool, which needs simply, reliably, while having preferable economy again, can not only realize conventional screw Drilling tool rotary drilling and curved shell orientating function, and while ensureing large torque, high-revolving power output, additionally it is possible to it protects The service life of card and conventional screw drilling tool, can effectively improve bit speed, function increases, and the service life does not reduce.

The technical solution of the utility model：A kind of super helicoid hydraulic motor, including it is anti-lost conversion assembly, motor assembly, universal Axle assembly and driving-shaft assembly；

The anti-lost conversion assembly includes anti-lost crossover sub, anti-lost disk and anti-lost connecting rod, is set inside anti-lost crossover sub There are anti-lost disk, the upper end of anti-lost connecting rod to be inserted in anti-lost disk and fixed by standby tight nut, the other end and motor of anti-lost connecting rod The rotor upper end of assembly connects；

The universal axle assembly includes universal shaft outer barrel and mounted on the upper flexural pivot of universal shaft outer barrel, transmission Ball, semi-ring, lock sleeve, rubber sealing boot, flexural pivot connecting rod and lower flexural pivot, the upper/lower terminal of the flexural pivot connecting rod pass through respectively Drive ball is sequentially connected with upper flexural pivot and lower flexural pivot；Upper flexural pivot is connect with motor assembly, lower flexural pivot with Driving-shaft assembly connects；The junction of flexural pivot connecting rod and drive ball is equipped with a pair of symmetrical semi-ring, a pair of symmetrical semi-ring peripheral hardware There are rubber sealing boot, rubber sealing boot to be threadedly coupled with upper flexural pivot or lower flexural pivot through lock sleeve；

The driving-shaft assembly includes transmission shaft outer barrel and setting upper TC bearings Jing Quan, upper TC axis in transmission shaft outer barrel Hold moving-coil, planar slide thrust bearings, spacer, pressure-bearing set, lower TC bearings Jing Quan, trim ring, lower TC bearings moving-coil and transmission The lower thread of axis, the transmission shaft outer barrel is connected with interchangeable anti-lost sleeve, and transmission shaft upper end is connect with lower flexural pivot, transmission The lower end of axis can be directly connected to drill bit；Upper TC bearings moving-coil is cased in transmission shaft external wall of upper portion, in the outer of upper TC bearings moving-coil It is cased with TC bearing Jing Quan on wall, planar slide thrust bearings are cased on the middle part outer wall of transmission shaft, under transmission shaft It is cased with lower TC bearings moving-coil on portion's outer wall, lower TC bearings Jing Quan is cased on the outer wall of lower TC bearings moving-coil, it is dynamic in lower TC bearings The upper end of circle or lower TC bearings Jing Quan are provided with spacer and pressure-bearing set, are set in the lower end of lower TC bearings moving-coil or lower TC bearings Jing Quan It is equipped with trim ring, male cone (strobilus masculinus) is provided on the outer wall of lower TC bearing moving-coils lower end, is arranged on the lower end inner wall of interchangeable anti-lost sleeve Have with the matched inner conical surface of lower TC bearing moving-coils lower end male cone (strobilus masculinus), and the male cone (strobilus masculinus) of lower TC bearings moving-coil lower end with it is interchangeable anti-lost There are gap between the inner conical surface of the lower end of sleeve, can through-flow drilling mud, the bearing in transmission shaft outer barrel is lubricated；When After drive shafts fracture, post-rift transmission shaft is hung on lower TC bearings moving-coil, above carries transmission shaft outer barrel at this time, makes interchangeable anti-lost set Inner conical surface on cylinder is bonded with the male cone (strobilus masculinus) on lower TC bearing moving-coils, and transmission shaft and the transmission shaft outer barrel of fracture can be carried together Go out wellbore, that is, realizes anti-lost function in drilling tool.

Further, the motor assembly includes stator and the rotor in stator, and rotor can rotate in stator, The lower end of rotor is fixedly connected with the upper flexural pivot of universal axle assembly, rubber sleeve is hung on the inner wall of the stator, in rubber sleeve Inner wall on be provided with inside spin structure, the outer spiral shell with the inside spin structure matching on rubber sleeve is provided on the outer wall of rotor Structure is revolved, and the specific lobe of stator and rotor is：3:4、4:5、5:6、7:8 or 9:10, series is：5~8.

Further, the angle of the axial line of the axial line of universal shaft outer barrel lower end and universal shaft outer barrel upper end be 0~ 3 °, 1/3 circle wear-resistant strip is welded on the outside of universal shaft outer barrel camber.

Further, the bulb of the flexural pivot connecting rod upper and lower ends oval Internal Spherical Surface provided circumferentially about for having indent, it is oval The drive ball of shape is mounted in Internal Spherical Surface.

Further, the upper end end face of the transmission shaft is provided with fluid erosion prevention washer, not only has the function of fluid erosion prevention, can also rise To the effect for adjusting planar slide thrust bearings axial gap.

Further, the provided circumferentially about of interchangeable anti-lost sleeve has righting fin, and hard is inlaid on righting fin Alloy column, and according to field demand, interchangeable anti-lost set of different shapes can be easily replaced in the case where not dismantling internal structure Cylinder.

Further, the inner conical surface size of the interchangeable anti-lost sleeve lower end is less than the male cone (strobilus masculinus) of lower TC bearings moving-coil lower end.

Further, the upper and lower end face of the planar slide thrust bearings is equipped with the superhard material of cuboid or cylinder, And in the upper and lower end face of planar slide thrust bearings in respect of 3~5 sinks.

Further, the endoporus of the upper and lower TC bearings Jing Quan of outer circle of the upper TC bearings moving-coil is equipped with 2~4 semicircles Sink.

Due to the adoption of the above technical scheme, the utility model has the advantage of：The utility model is in classic screw drilling tool On the basis of redesigned motor assembly, universal axle assembly and driving-shaft assembly, wherein motor assembly using long helical pitch, multistage, The design of rotor bull number matches the mud pump system of huge discharge High Voltage, obtains large torque, high-revolving power output； Universal axle assembly uses shortest length and minimum curved point design, and the lower flexural pivot of universal joint is directly embedded into transmission shaft outer barrel In；Universal joint components length is also designed short length, and enhances anti-large torque with effect, counter-bending perturbs performance；And ten thousand Being sealed in the design of the long-life in lubricating oil to component, i.e. thrust bearing on transmission shaft and TC bearings belongs to open lubrication, Thrust bearings can bear larger bit pressure, while length is shorter, and mud plays a part of cooling and lubricates to bearing.Therefore, The utility model is simple in structure, securely and reliably, can not only realize the rotary drilling of conventional screw drilling tool and curved shell Directional Drilling Into function, while being also particularly suitable the drilling well of the compound rotating speed of superelevation under super large discharge, super large torque, super large bit pressure, heavy camber Occasion (be short radius drilling tool), have with the comparable service life of conventional screw, have greatly expanded the helicoid hydraulic motor scope of application, Bit speed can be effectively improved.

Description of the drawings

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the structural schematic diagram of anti-lost conversion assembly；

Fig. 3 is the structural schematic diagram of motor assembly；

Fig. 4 is the sectional view of Fig. 3；

Fig. 5 is universal shaft assembly structure schematic diagram；

Fig. 6 is flexural pivot link mechanism schematic diagram；

Fig. 7 is the structural schematic diagram of driving-shaft assembly；

Fig. 8 is the structural schematic diagram of interchangeable anti-lost sleeve；

Fig. 9 is the sectional view of Fig. 8；

Figure 10 is the end view of planar slide thrust bearings；

Figure 11 is the sectional view of upper TC bearings moving-coil.

Reference sign：The anti-lost conversion assemblies of 1-, the anti-lost crossover subs of 1-1-, 1-2- is for tight nut, the anti-lost disks of 1-3-, The anti-lost connecting rods of 1-4-；2- motor assemblies, 2-1- stators, 2-2- rotors；The universal axle assemblies of 3-, 3-1- universal shaft outer barrels, on 3-2- Flexural pivot, 3-3- drive balls, 3-4- semi-rings, 3-5- lock sleeves, 3-6- rubber sealing boots, 3-7- flexural pivot connecting rods, ball under 3-8- Articulated joint, 3-9- wear-resistant strips；4- driving-shaft assemblies, 4-1- fluid erosion prevention washers, 4-2- transmission shaft outer barrels, the upper TC bearings of 4-3- are quiet It encloses, the upper TC bearings moving-coils of 4-4-, 4-5- planar slide thrust bearings, 4-6- spacers, 4-7- pressure-bearing sets, TC bearings are quiet under 4-8- It encloses, 4-9- trim rings, the interchangeable anti-lost sleeves of 4-10-, TC bearing moving-coils under 4-11-, 4-12- transmission shafts, 4-13- hard alloy columnars, 4-14- sinks, 4-15- semicircular water tanks.

Specific implementation mode

In order to keep the utility model aim, technical solution and advantage clearer, below in conjunction with the accompanying drawings and embodiment pair The utility model is described in further detail.

The embodiments of the present invention：A kind of structural schematic diagram such as Fig. 1 of super helicoid hydraulic motor by above method structure It is shown, including anti-lost conversion assembly 1, motor assembly 2, universal axle assembly 3 and driving-shaft assembly 4.

Referring to Fig. 2, the anti-lost conversion assembly 1 includes anti-lost crossover sub 1-1, anti-lost disk 1-3 and anti-lost connecting rod 1-4, Anti-lost crossover sub 1-1 is internally provided with anti-lost disk 1-3, and the upper end of anti-lost connecting rod 1-4 is inserted in anti-lost disk 1-3 and by standby tight spiral shell Female 1-2 is fixed, and the other end of anti-lost connecting rod 1-4 is connect with the upper ends rotor 2-2 of motor assembly 2.

The operation principle of anti-lost conversion assembly 1：The upper ends anti-lost crossover sub 1-1 connect drill string, and the lower ends anti-lost connecting rod 1-4 connect Switch through sub- 2-2, even if after the fracture of drilling tool outer barrel, the anti-lost disk 1-3 of the upper ends rotor 2-2 connection is still suspended on anti-lost conversion and connects In head 1-1 on step.Anti-lost disk 1-3 bore designs are sleeved at interior square hole on the anti-lost connecting rod 1-4 in outer four directions, and by Standby tight nut 1-2 is locked on anti-lost connecting rod 1-4, when anti-lost conversion assembly 1 starts, though anti-lost disk 1-3 by forward direction or When reversely rotating torque, torque is all not transferred to standby tight nut 1-2, and institute is in case tight nut 1-2 will not move back button, anti-lost startup Will be relatively reliable, and slurry channel in drilling tool is closed, well head pressure increases early warning, that is, realizes anti-lost outside drilling tool.

Referring to Fig. 3 and Fig. 4, the motor assembly 2 includes the stator 2-1 and rotor 2-2 in stator 2-1, is turned Sub- 2-2 can rotate in stator 2-1, and the lower end of rotor 2-2 is fixedly connected with the upper flexural pivot 3-2 of universal axle assembly 3, fixed Rubber sleeve is hung on the inner wall of sub- 2-1, inside spin structure is provided on the inner wall of rubber sleeve, is set on the outer wall of rotor 2-2 It is equipped with the external spiral structure with the inside spin structure matching on rubber sleeve, and the specific lobe of stator 2-1 and rotor 2-2 is 5:6, grade Number is：6.

The operation principle of motor assembly 2：Motor assembly 2 is an energy conversion device, and outer spiral shell is driven by mud pressure Rotation in spiral stator 2-1 including the rotor 2-2 of rotation shape, and stator 2-1 and rotor 2-2 engagements are formed by closing spiral shell Rotation seal chamber constantly moves down, and can realize that high-pressure slurry drilling fluid hydraulic energy transfer is at needed for driving bit in drilling tool Mechanical energy, be to promote the use most structure type in the market.

Referring to Fig. 5 and Fig. 6, the universal axle assembly 3 is including universal shaft outer barrel 3-1 and is mounted on universal shaft outer barrel 3-1 Internal upper flexural pivot 3-2, drive ball 3-3, semi-ring 3-4, lock sleeve 3-5, rubber sealing boot 3-6, flexural pivot connecting rod 3-7 and under The upper/lower terminal of flexural pivot 3-8, the flexural pivot connecting rod 3-7 are respectively through drive ball 3-3 and upper flexural pivot 3-2 and lower flexural pivot Connector 3-8 is sequentially connected；Upper flexural pivot 3-2 is connect with motor assembly 2, and lower flexural pivot 3-8 is connect with driving-shaft assembly 4； The junction of flexural pivot connecting rod 3-7 and drive ball 3-3 is equipped with a pair of symmetrical semi-ring 3-4, and a pair of symmetrical semi-ring 3-4 is externally provided with rubber Glue sealing shroud 3-6, rubber sealing boot 3-6 are threadedly coupled through lock sleeve 3-5 with upper flexural pivot 3-2 or lower flexural pivots 3-8.Institute The angle α for stating the axial line of the lower ends universal shaft outer barrel 3-1 and the axial line of the upper ends universal shaft outer barrel 3-1 is 2 °, outside universal shaft It is welded with 1/3 circle wear-resistant strip 3-9 on the outside of cylinder 3-1 cambers.The bulb of the flexural pivot connecting rod 3-7 upper and lower ends is provided circumferentially about indent Oval Internal Spherical Surface, oval drive ball 3-3 be mounted on Internal Spherical Surface in.

The operation principle of universal axle assembly 3：Universal axle assembly 3 has the function of gimbal function and transmits torque, and drive ball The junction of 3-3 and flexural pivot connecting rod 3-7 seals to form lubricant reservoir by rubber sealing boot 3-6, to the two of flexural pivot connecting rod 3-7 End works in upper lower oil cavitie always, considerably increases greasy property, greatly reduces frictional resistance, to extend universal joint Service life is 1 times to 1.5 times of original structure, substantially increases economic benefit.Gimbal function energy possessed by universal axle assembly 3 It enough realizes that the planetary motion of rotor 2-2 is converted to the fixed-axis rotation of bit, especially has in universal shaft outer barrel 3-1 certain Important transformation is played when camber, and the torque that motor assembly 2 generates is passed into transmission shaft 4-12.Wherein drive ball 3- 3 have two groups up and down, design ovalisation, play a part of to transmit torque, and increase the ability for transmitting torque, be passed to improve Dynamic reliability and service life.As shown in figure 5, the flexural pivot connecting rod 3-7 is by the pressure-bearing ball, ball seat and flexural pivot connecting rod complex of conventional structure Five are integrated, and the upper and lower ends spherical surface of flexural pivot connecting rod 3-7 contacted with upper flexural pivot 3-2 and lower flexural pivot 3-8 it is interior It is directly processed into Internal Spherical Surface in hole, simplifies structure, improves 3 anti-axial compressive force of universal axle assembly and anti-rotational centrifugal force Ability effectively increases the reliability and working life of transmission；Flexural pivot connecting rod 3-7, drive ball 3-3, upper flexural pivot 3-2 and under Flexural pivot 3-8 is the core transmission stressed member of universal axle assembly 3, performance and service life determine the assembly performance and Service life.The structure plays raising, and it transmits torque capability and service life, and pressure-bearing ball plays a part of universal and bears axial force. It wherein is welded with 1/3 circle wear-resistant strip 3-9 on the outside of the camber of the lower ends universal shaft outer barrel 3-1, to promote the enabling capabilities of universal shaft outer barrel 3-1 And abrasion-resistance.

Referring to Fig. 7~11, the driving-shaft assembly 4 includes transmission shaft outer barrel 4-2 and is arranged in transmission shaft outer barrel 4-2 The quiet circle 4-3 of upper TC bearings, upper TC bearings moving-coil 4-4, planar slide thrust bearings 4-5, spacer 4-6, pressure-bearing set 4-7, lower TC The quiet circle 4-8 of bearing, trim ring 4-9, lower TC bearings moving-coil 4-11 and transmission shaft 4-12, the lower end spiral shell of the transmission shaft outer barrel 4-2 Line is connected with interchangeable anti-lost sleeve 4-10, and the upper ends transmission shaft 4-12 are connect with lower flexural pivot 3-8, and the lower end of transmission shaft 4-12 can It is directly connected to drill bit；Upper TC bearings moving-coil 4-4 is cased in transmission shaft 4-12 external wall of upper portion, in the outer of upper TC bearings moving-coil 4-4 It is cased with the quiet circle 4-3 of TC bearings on wall, planar slide thrust bearings 4-5 is cased on the middle part outer wall of transmission shaft 4-12, It is cased with lower TC bearings moving-coil 4-11 on the lower part outer wall of transmission shaft 4-12, lower TC is cased on the outer wall of lower TC bearings moving-coil 4-11 The quiet circle 4-8 of bearing is provided with spacer 4-6 in the upper end of the quiet circle 4-8 of lower TC bearings moving-coil 4-11 or lower TC bearings and pressure-bearing covers 4- 7, the lower end of the quiet circle 4-8 of lower TC bearings moving-coil 4-11 or lower TC bearings is provided with trim ring 4-9, the lower lower ends TC bearings moving-coil 4-11 Outer wall on be provided with male cone (strobilus masculinus), be provided on the lower end inner wall of interchangeable anti-lost sleeve 4-10 under lower TC bearing moving-coils 4-11 Hold the matched inner conical surface of male cone (strobilus masculinus), and the lower end of the male cone (strobilus masculinus) of the lower ends lower TC bearings moving-coil 4-11 and interchangeable anti-lost sleeve 4-10 Inner conical surface between there are gap, can through-flow drilling mud, the bearing in transmission shaft outer barrel 4-2 is lubricated；Work as transmission shaft After 4-12 fractures, post-rift transmission shaft 4-12 is hung on lower TC bearings moving-coil 4-11, is above carried transmission shaft outer barrel 4-2 at this time, is made Inner conical surface on interchangeable anti-lost sleeve 4-10 is bonded with the male cone (strobilus masculinus) on lower TC bearing moving-coils 4-11, the transmission shaft 4-12 of fracture with Transmission shaft outer barrel 4-2 can be suggested wellbore together, that is, realize anti-lost function in drilling tool.The circle of the interchangeable anti-lost sleeve 4-10 It is provided with righting fin on week, hard alloy columnar 4-13 is inlaid on righting fin.The interchangeable lower ends anti-lost sleeve 4-10 Inner conical surface size be less than the lower ends lower TC bearings moving-coil 4-11 male cone (strobilus masculinus).The planar slide thrust bearings 4-5 or more End face is equipped with the tungsten-cobalt hard alloy of cuboid or cylinder, and in the upper and lower end face of planar slide thrust bearings 4-5 in respect of 3 ~5 sink 4-14.The endoporus of the quiet circle 4-8 of the upper and lower TC bearings of outer circle of the upper TC bearings moving-coil 4-4 is equipped with 2~4 Semicircular water tank 4-15.The upper end end face of the transmission shaft 4-12 is provided with fluid erosion prevention washer 4-1, not only has fluid erosion prevention work( Can, it may also function as the effect for adjusting planar slide thrust bearings 4-5 axial gaps.

The operation principle of driving-shaft assembly 4：Interchangeable anti-lost the provided circumferentially about of sleeve 4-10 of the driving-shaft assembly 4 has Righting fin is inlaid with hard alloy columnar 4-13 on righting fin, increases the scope of application of drilling tool and and realizes more The ease of Use changed；Meanwhile the inner conical surface size of the interchangeable lower ends anti-lost sleeve 4-10 is less than the lower ends lower TC bearings moving-coil 4-11 Male cone (strobilus masculinus), in the middle part of transmission shaft 4-12 or top breaks rear lower big end and lower TC bearing moving-coils 4-11 and is connected to one It rises, hangs in interchangeable anti-lost sleeve 4-10 endoporus, that is, it is anti-lost to realize drilling tool；The planar slide thrust bearings 4-5's is upper Lower face is equipped with the tungsten-cobalt hard alloy of cuboid or cylinder, which realizes axial shorter size instead of routine The string bearing of longer dimension, and the bearing area of bearing is increased, belong to slide thrust bearing, it is anti-big to realize drilling tool Bit pressure performance；And plane sliding bearing is designed with 3~5 sink 4-14, improves cooling and the greasy property of bearing；It is described The endoporus of the quiet circle 4-8 of the upper and lower TC bearings of outer circle of upper TC bearings moving-coil 4-4 is equipped with 2~4 semicircular water tank 4-15, not Under the premise of influence TC bearings bear radial load, the flow of lubricated slurry is increased, ensure that cooling and the profit of driving-shaft assembly 4 Sliding ability.

In conclusion the utility model passes through the improvement raising to motor assembly 2 and universal axle assembly 3 in helicoid hydraulic motor The performance of helicoid hydraulic motor；The wherein stator 2-1 and rotor 2-2 of motor assembly 2 is coordinated using helical structure, to prolong It has grown the helical pitch of motor assembly 2 and has increased the head number of the sum of series rotor of motor assembly, and improved mud pump system Discharge capacity can increase the output torque and rotating speed of motor assembly 2 in this way；It simultaneously will be under the universal shaft outer barrel 3-1 of universal axle assembly 3 Certain camber is arranged in end, so as to which the planetary motion of rotor 2-2 to be converted to the fixed-axis rotation of bit, improves drilling well effect Rate, and the lower flexural pivot 3-8 of universal joint is directly embedded into transmission shaft outer barrel 4-2 and is connect with transmission shaft 4-12, shortens ten thousand To the length of axle assembly 3, effectively enhances 3 anti-large torque of universal axle assembly, counter-bending perturbs performance；In addition universal axle assembly 3 Flexural pivot connecting rod 3-7 upper and lower ends the bulb oval Internal Spherical Surface provided circumferentially about for having indent, oval drive ball installation In Internal Spherical Surface, increase transmit torque ability, and flexural pivot connecting rod 3-7 by pressure-bearing ball in the prior art, ball seat and Flexural pivot connecting rod is integrated, and not only increases 3 anti-large torque of universal axle assembly, the counter-bending performance perturbed, and improve ten thousand To the ability of 3 anti-axial compressive force and anti-rotation centrifugal force of axle assembly, the reliability and work of the transmission of universal axle assembly 3 are effectively increased Make the service life；Planar slide thrust bearings 4-5 is set on the transmission shaft 4-12 of driving-shaft assembly 4, passes through planar slide thrust The contact area of bearing group 4-5 and transmission shaft 4-12, while the length of transmission shaft 4-12 assemblies is shortened, and then improve transmission shaft The ability of the anti-drilling pressure of assembly 4, and planar slide thrust bearings 4-5 and the TC bearing on transmission shaft 4-12 belongs to open Structure enables mud can smoothly enter into Bearing inner, and bearing is cooled down and lubricated by mud, is slided to improve plane The service life of dynamicthrust bearing group 4-5 and TC bearing.

Claims (9)

1. a kind of super helicoid hydraulic motor, including anti-lost conversion assembly (1), motor assembly (2), universal axle assembly (3) and transmission shaft Assembly (4), it is characterised in that：

The anti-lost conversion assembly (1) includes anti-lost crossover sub (1-1), anti-lost disk (1-3) and anti-lost connecting rod (1-4), anti-lost Crossover sub (1-1) is internally provided with anti-lost disk (1-3), and the upper end of anti-lost connecting rod (1-4) is inserted in anti-lost disk (1-3) and by standby Tight nut (1-2) is fixed, and the other end of anti-lost connecting rod (1-4) is connect with upper end rotor (2-2) of motor assembly (2)；

The universal axle assembly (3) includes universal shaft outer barrel (3-1) and the upper flexural pivot mounted on universal shaft outer barrel (3-1) inside Connector (3-2), drive ball (3-3), semi-ring (3-4), lock sleeve (3-5), rubber sealing boot (3-6), flexural pivot connecting rod (3-7) and under Flexural pivot (3-8), the upper/lower terminal of the flexural pivot connecting rod (3-7) is respectively through drive ball (3-3) and upper flexural pivot (3-2) It is sequentially connected with lower flexural pivot (3-8)；Upper flexural pivot (3-2) connect with motor assembly (2), lower flexural pivot (3-8) with Driving-shaft assembly (4) connects；The junction of flexural pivot connecting rod (3-7) and drive ball (3-3) is equipped with a pair of symmetrical semi-ring (3-4), A pair of symmetrical semi-ring (3-4) is externally provided with rubber sealing boot (3-6), and rubber sealing boot (3-6) is through lock sleeve (3-5) and upper flexural pivot Connector (3-2) or lower flexural pivot (3-8) are threadedly coupled；

The driving-shaft assembly (4) includes that transmission shaft outer barrel (4-2) and the setting upper TC bearings in transmission shaft outer barrel (4-2) are quiet Enclose (4-3), upper TC bearings moving-coil (4-4), planar slide thrust bearings (4-5), spacer (4-6), pressure-bearing set (4-7), lower TC Bearing Jing Quan (4-8), trim ring (4-9), lower TC bearings moving-coil (4-11) and transmission shaft (4-12), the transmission shaft outer barrel (4- 2) lower thread is connected with interchangeable anti-lost sleeve (4-10), and the transmission shaft upper end (4-12) is connect with lower flexural pivot (3-8), passes The lower end of moving axis (4-12) can be directly connected to drill bit；Upper TC bearings moving-coil (4-4) is cased in transmission shaft (4-12) external wall of upper portion, It is cased with upper TC bearings Jing Quan (4-3) on the outer wall of upper TC bearings moving-coil (4-4), is covered on the middle part outer wall of transmission shaft (4-12) There are planar slide thrust bearings (4-5), lower TC bearings moving-coil (4-11) is cased on the lower part outer wall of transmission shaft (4-12), Lower TC bearings Jing Quan (4-8) is cased on the outer wall of lower TC bearings moving-coil (4-11), in lower TC bearings moving-coil (4-11) or lower TC axis The upper end for holding Jing Quan (4-8) is provided with spacer (4-6) and pressure-bearing set (4-7), in lower TC bearings moving-coil (4-11) or lower TC bearings The lower end of Jing Quan (4-8) is provided with trim ring (4-9), and male cone (strobilus masculinus) is provided on the outer wall of lower TC bearings moving-coil (4-11) lower end, It is provided on the lower end inner wall of interchangeable anti-lost sleeve (4-10) matched interior with lower TC bearings moving-coil (4-11) lower end male cone (strobilus masculinus) The conical surface, and deposited between the inner conical surface of the lower end of the male cone (strobilus masculinus) and interchangeable anti-lost sleeve (4-10) of lower TC bearings moving-coil (4-11) lower end In gap.

2. super helicoid hydraulic motor according to claim 1, it is characterised in that：The motor assembly (2) includes stator (2-1) And the rotor (2-2) in stator (2-1), rotor (2-2) can rotate in stator (2-1), the lower end of rotor (2-2) It is fixedly connected with the upper flexural pivot (3-2) of universal axle assembly (3), rubber sleeve is hung on the inner wall of stator (2-1), in rubber It is provided with inside spin structure on the inner wall of set, is provided on the outer wall of rotor (2-2) and the inside spin structure on rubber sleeve The external spiral structure matched, and stator (2-1) and the specific lobe of rotor (2-2) are：3:4、4:5、5:6、7:8 or 9:10, series is： 5~8.

3. super helicoid hydraulic motor according to claim 1, it is characterised in that：The axis of universal shaft outer barrel (3-1) lower end The angle (α) of heart line and the axial line of the upper end universal shaft outer barrel (3-1) is 0~3 °, is welded on the outside of universal shaft outer barrel (3-1) camber There is 1/3 circle wear-resistant strip (3-9).

4. super helicoid hydraulic motor according to claim 1, it is characterised in that：Flexural pivot connecting rod (3-7) upper and lower ends The bulb oval Internal Spherical Surface provided circumferentially about for having indent, oval drive ball (3-3) are mounted in Internal Spherical Surface.

5. super helicoid hydraulic motor according to claim 1, it is characterised in that：The upper end end face of the transmission shaft (4-12) is set It is equipped with fluid erosion prevention washer (4-1).

6. super helicoid hydraulic motor according to claim 1, it is characterised in that：The circumference of the interchangeable anti-lost sleeve (4-10) On be provided with righting fin, hard alloy columnar (4-13) is inlaid on righting fin.

7. super helicoid hydraulic motor according to claim 1, it is characterised in that：Interchangeable anti-lost sleeve (4-10) lower end Inner conical surface size is less than the male cone (strobilus masculinus) of lower TC bearings moving-coil (4-11) lower end.

8. super helicoid hydraulic motor according to claim 1, it is characterised in that：The planar slide thrust bearings (4-5) Upper and lower end face be equipped with the superhard material of cuboid or cylinder, and in the upper and lower end face of planar slide thrust bearings (4-5) In respect of 3~5 sinks (4-14).

9. super helicoid hydraulic motor according to claim 1, it is characterised in that：The outer circle of the upper TC bearings moving-coil (4-4) The endoporus of upper and lower TC bearings Jing Quan (4-8) is equipped with 2~4 semicircular water tanks (4-15).