CN208749287U - Helicoid hydraulic motor buffering driving-shaft assembly - Google Patents
Helicoid hydraulic motor buffering driving-shaft assembly Download PDFInfo
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- CN208749287U CN208749287U CN201821222436.5U CN201821222436U CN208749287U CN 208749287 U CN208749287 U CN 208749287U CN 201821222436 U CN201821222436 U CN 201821222436U CN 208749287 U CN208749287 U CN 208749287U
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- transmission shaft
- hydraulic motor
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Abstract
The utility model relates to helicoid hydraulic motor technical fields, more particularly to a kind of helicoid hydraulic motor moves set, upper ripple spring, thrust bearings, shell, pressure-bearing set, lower wave spring, spacer, semi-ring, lower TC bearing Jing Quan, lower TC bearing moving-coil, transmission shaft with buffering driving-shaft assembly, including the quiet set of upper TC bearing, upper TC bearing；The dynamic set of the upper TC bearing is connect with the left end of the transmission shaft, the thrust bearings are mounted between the transmission shaft and the shell, the upper ripple spring is mounted between the dynamic set of the upper TC bearing and the left end of the thrust bearings and cooperates with the two, the lower wave spring is mounted on the right end of the spacer Yu the thrust bearings, and the lower TC bearing moving-coil is connect with the right end of the transmission shaft.By way of increased buffering wave spring group and thrust bearings cooperation, the bearing group of weak link is protected when receiving huge external force, so that damage is reduced to minimum.
Description
Technical field
The utility model relates to helicoid hydraulic motor technical field more particularly to a kind of helicoid hydraulic motor buffering driving-shaft assemblies.
Background technique
Helicoid hydraulic motor is a kind of hydraulic machine, is a kind of energy converting means for the pressure energy of liquid being converted to mechanical energy
It sets, also referred to as positive displacement motor, the characteristic with low-speed big, is one of common downhole tool in current drilling engineering,
It is also a kind of most widely used mud motor.Helicoid hydraulic motor is mainly by by-passing valve, stator, rotor, universal axle assembly, biography
The composition such as moving axis assembly.Wherein driving-shaft assembly is one of important component of helicoid hydraulic motor, its service life determines helicoid hydraulic motor
Overall life, driving-shaft assembly is mainly used for transmitting bit pressure, torque, when a well is drilled using bit pressure is excessive or misoperation, lead
The thrust bearings damage in driving-shaft assembly is caused, transmission shaft " locking " is may result in and can not work normally, so as to cause
Drilling work can not be normally carried out, cause it is unnecessary make a trip, influence progress and increase cost.
The structure of driving-shaft assembly at present, by water cap, upper TC bearing moving-coil, upper TC bearing Jing Quan, positioning key, axle power bearing
Group, spacer, pressure-bearing set, semi-ring, lower TC bearing moving-coil, shell, lower TC bearing Jing Quan and transmission shaft composition.Thrust bearings upper end
It being contacted with upper TC bearing moving-coil and upper TC bearing Jing Quan, lower end is covered with pressure-bearing and spacer contacts, when something unexpected happened, transmission
Most weak thrust bearings will bear huge external force and damage in axle assembly.
Utility model content
Purpose of the utility model is to overcome the shortcomings of the above technology, and to provide a kind of helicoid hydraulic motor buffering transmission shafts
Assembly.
In order to achieve the above object, the utility model adopts the following technical solutions: a kind of helicoid hydraulic motor is total with buffering transmission shaft
At, it is characterised in that: including the quiet set of upper TC bearing, upper TC bearing move set, upper ripple spring, thrust bearings, shell, pressure-bearing set, under
Wave spring, spacer, semi-ring, lower TC bearing Jing Quan, lower TC bearing moving-coil, transmission shaft；The dynamic set of the upper TC bearing and the transmission shaft
Left end connection, the dynamic set cooperation of the upper quiet set of TC bearing and the upper TC bearing, the left end of the shell and the upper TC axis
Quiet set connection is held, the thrust bearings are mounted between the transmission shaft and the shell, and the upper ripple spring is mounted on described
Cooperate between the dynamic set of upper TC bearing and the left end of the thrust bearings and with the two, the pressure-bearing set is mounted on the thrust axis
The right end of group is held, the right end of pressure-bearing set is connect with the semi-ring, and the spacer is covered in the outside of the semi-ring and pressure-bearing set,
The lower wave spring is mounted on the right end of the spacer Yu the thrust bearings, the right side of lower the TC bearing Jing Quan and the shell
End connection, the lower TC bearing Jing Quan and the lower TC bearing moving-coil cooperate, the lower TC bearing moving-coil and the transmission shaft
Right end connection.
The beneficial effects of the utility model are: compared with the existing technology, the utility model is with upper and lower two to top wave spring group
At buffering group, respectively contact thrust bearings upper and lower ends.Cooperated by increased buffering wave spring group and thrust bearings
Mode, the bearing group of weak link is protected when receiving huge external force, so that damage is reduced to
It is minimum.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the enlarged drawing of thrust bearings two sides in the utility model.
Specific embodiment
With reference to the accompanying drawing and specific embodiment of the present utility model is described in detail in preferred embodiment.As shown in Figs. 1-2,
A kind of helicoid hydraulic motor buffering driving-shaft assembly, including the dynamic set of the quiet set 1 of upper TC bearing, upper TC bearing 2, upper ripple spring 3, thrust bearing
Group 4, shell 5, pressure-bearing cover 6, lower wave spring 7, spacer 8, semi-ring 9, the quiet circle of lower TC bearing 10, lower TC bearing moving-coil 11, transmission shaft 12；
The dynamic set of the upper TC bearing is connect with the left end of the transmission shaft, and the upper quiet set of TC bearing is matched with the dynamic set of the upper TC bearing
Close, the left end of the shell connect with the upper quiet set of TC bearing, the thrust bearings be mounted on the transmission shaft with it is described
Between shell, the upper ripple spring is mounted between the dynamic set of the upper TC bearing and the left end of the thrust bearings and matches with the two
It closes, the pressure-bearing set is mounted on the right end of the thrust bearings, and the right end of pressure-bearing set is connect with the semi-ring, the spacer set
In the outside of the semi-ring and pressure-bearing set, the lower wave spring is mounted on the right end of the spacer Yu the thrust bearings,
The lower TC bearing Jing Quan is connect with the right end of the shell, and the lower TC bearing Jing Quan and the lower TC bearing moving-coil cooperate,
The lower TC bearing moving-coil is connect with the right end of the transmission shaft.The utility model passes through the knot of innovative design driving-shaft assembly
Structure increases a kind of to top wave spring buffer unit on it.Helicoid hydraulic motor is in underground work, because of misoperation or other reasons
Drilling string not well braked, percussion drill are caused, will lead to the thrust bearings damage in driving-shaft assembly.The innovative design of this patent can avoid thrust axis
It holds the damage of group or is minimized damaged condition.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (1)
1. a kind of helicoid hydraulic motor buffering driving-shaft assembly, it is characterised in that: including the quiet set of upper TC bearing, the dynamic set of upper TC bearing,
Upper ripple spring, thrust bearings, shell, pressure-bearing set, lower wave spring, spacer, semi-ring, lower TC bearing Jing Quan, lower TC bearing moving-coil, transmission
Axis；The dynamic set of the upper TC bearing is connect with the left end of the transmission shaft, the upper quiet set of TC bearing and the dynamic set of the upper TC bearing
Cooperation, the left end of the shell are connect with the upper quiet set of TC bearing, and the thrust bearings are mounted on the transmission shaft and institute
State between shell, the upper ripple spring be mounted between the dynamic set of the upper TC bearing and the left end of the thrust bearings and with the two
Cooperation, the pressure-bearing set are mounted on the right end of the thrust bearings, and the right end of pressure-bearing set is connect with the semi-ring, the spacer
It covers in the outside of the semi-ring and pressure-bearing set, the lower wave spring is mounted on the right side of the spacer Yu the thrust bearings
End, the lower TC bearing Jing Quan are connect with the right end of the shell, and the lower TC bearing Jing Quan matches with the lower TC bearing moving-coil
It closes, the lower TC bearing moving-coil is connect with the right end of the transmission shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821222436.5U CN208749287U (en) | 2018-07-31 | 2018-07-31 | Helicoid hydraulic motor buffering driving-shaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821222436.5U CN208749287U (en) | 2018-07-31 | 2018-07-31 | Helicoid hydraulic motor buffering driving-shaft assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208749287U true CN208749287U (en) | 2019-04-16 |
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ID=66059500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821222436.5U Active CN208749287U (en) | 2018-07-31 | 2018-07-31 | Helicoid hydraulic motor buffering driving-shaft assembly |
Country Status (1)
| Country | Link |
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| CN (1) | CN208749287U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236178A (en) * | 2018-07-31 | 2019-01-18 | 天津立林石油机械有限公司 | Helicoid hydraulic motor buffering driving-shaft assembly |
-
2018
- 2018-07-31 CN CN201821222436.5U patent/CN208749287U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236178A (en) * | 2018-07-31 | 2019-01-18 | 天津立林石油机械有限公司 | Helicoid hydraulic motor buffering driving-shaft assembly |
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