CN215169814U

CN215169814U - Spiral drill rod with speed reducing mechanism

Info

Publication number: CN215169814U
Application number: CN202121395468.7U
Authority: CN
Inventors: 李海东; 王福波; 张俊强; 王鑫
Original assignee: Jining Yuansheng Electromechanical Co Ltd
Current assignee: Jining Yuansheng Electromechanical Co Ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2021-12-14
Anticipated expiration: 2031-06-23

Abstract

The utility model belongs to the technical field of the mechanical structure technique and specifically relates to a take speed reducing mechanism's auger stem, including auger stem, motor fixed mounting is on a connecting seat, the output shaft of motor has a coaxial output speed reducing mechanism, the output shaft of motor coaxial output speed reducing mechanism's output with auger stem is coaxial setting auger stem's work end is fixed with a drill point through front end bolt spare, coaxial output speed reducing mechanism's output with auger stem's rear end passes through removable bolt spare and realizes detachable fixed connection. The motor is matched with a planetary gear speed reducing structure to be connected with the spiral drill rod, so that the speed reducing effect can be effectively achieved, the coaxiality of a driving shaft and an output shaft can be ensured, and the stability of the spiral drill rod in rotating use is ensured; this structure adopts motor cover and the protection of hollow spacing shell realization to whole inside driving medium when using, and the design that adopts coaxial structure simultaneously can reduce holistic volume, occupation space size when reducing the use.

Description

Spiral drill rod with speed reducing mechanism

Technical Field

The utility model belongs to the technical field of mechanical structure technique and specifically relates to an improved generation's auger stem structure, especially a take speed reduction mechanism's auger stem that can realize mechanical speed reduction according to the operating mode demand effectively.

Background

The spiral drill rod has the characteristics of high drilling speed, good drilling forming, high drilling efficiency, larger torque, stable operation, automatic locking of the spring pin, convenience and quickness in disassembly and the like, so the spiral drill rod is widely applied to engineering construction drilling.

The purpose of the auger stem is to deliver drilling mud to the drill bit and, in conjunction with the drill bit, raise, lower or rotate the bottom hole assembly and therefore must be able to withstand significant internal and external pressures, distortions, bends and vibrations, the drill stem being reusable during the extraction and refinement of oil and gas.

The traditional driving mode of the auger stem is mainly directly connected to an output shaft of a driving motor, but the mode has certain difficulty in controlling the rotation driving speed of the auger stem when being used in a proper range, and if the traditional speed reducer is adopted for achieving the effective speed reduction effect, the traditional speed reducer can cause the displacement of a transmission direction or a transmission shaft, so that the stability of transmission is reduced, and the vibration performance is increased.

Therefore, the company designs an improved structure which can effectively control the speed of the spiral drill rod to be reduced on the premise of ensuring the transmission stability of the spiral drill rod after improvement and research so as to effectively solve the problems in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve one of above-mentioned technical problem, the technical scheme who adopts is: the utility model provides a take speed reduction mechanism's auger stem, includes auger stem, motor fixed mounting is on a connection base, the output shaft of motor is connected with a coaxial output speed reduction mechanism, the output shaft of motor coaxial output speed reduction mechanism's output with auger stem is coaxial setting auger stem's work end is fixed with a drill point through front end bolt spare, coaxial output speed reduction mechanism's output with auger stem's rear end passes through removable bolt spare and realizes detachable fixed connection.

In any of the above schemes, preferably, the coaxial output speed reducing mechanism includes a sun gear fixedly connected and sleeved with the output shaft of the motor, a sun gear pressing plate is tightly supported and installed inside a central cavity of the sun gear, the sun gear pressing plate is fixedly connected with the output shaft of the motor through a pressing bolt, a planetary wheel set is arranged on the periphery of the sun gear, the planetary wheel set is used for realizing coaxial rotation along with the rotation of the sun gear, a fixedly arranged hollow limiting shell is coaxially sleeved on the periphery of the planetary wheel set, and the output end of the planetary wheel set penetrates through the hollow limiting shell and then is coaxially and fixedly connected with the auger stem.

In any of the above schemes, preferably, a motor cover is covered on the periphery of the motor, the motor cover is fixedly mounted on the connecting seat, a motor connecting disc is fixed at the front end of the casing of the motor, the rear end of the motor connecting disc abuts against the motor cover, the front end of the motor connecting disc abuts against the rear end of the hollow limiting casing, and the motor cover, the motor connecting disc and the hollow limiting casing are bolted and fixed through a plurality of connecting bolt pieces arranged at intervals along the circumference of the motor cover, the motor connecting disc and the hollow limiting casing.

In any of the above schemes, preferably, the planetary gear set includes a planetary carrier gland and a planetary carrier, which are coaxially disposed at the rear side and the front side of the sun gear, respectively, the planetary carrier gland and the planetary carrier are relatively and fixedly connected by a plurality of planetary carrier fixing shafts uniformly spaced along the circumferential direction thereof, a planetary gear shaft is installed in the space between the planetary carrier gland and the planetary carrier between the adjacent planetary carrier fixing shafts, a planetary gear is coaxially and cooperatively installed on each planetary gear shaft, two ends of each planetary gear shaft are respectively and fixedly installed on the planetary carrier gland and the planetary carrier at the corresponding positions, each planetary gear is respectively engaged with the sun gear, a limit cavity at the rear end of the hollow limit shell is used for limiting the outer side of each planetary gear, a bearing cavity is communicated with the front side of the limit cavity at the rear end of the hollow limit shell, the front end center of planet carrier an organic whole has linked firmly the ladder connecting axle, the front end axle section of ladder connecting axle extends behind the mounting hole of auger stem rear end and realize linking firmly through removable bolt spare the front end of hollow spacing shell is installed a activity and is cup jointed bearing room end cover on the ladder connecting axle lateral wall.

In any of the above aspects, power is preferably input from the sun gear and output from the carrier.

In any of the above schemes, preferably, tapered roller bearings for supporting the stepped connection shaft are installed at intervals in the bearing cavity, and a stop washer and a round nut which are matched with the stepped connection shaft at corresponding positions are respectively and tightly abutted and installed in the bearing cavity between the tapered roller bearing at the front end and the bearing chamber end cover.

In any one of the above aspects, it is preferable that each of the planetary shafts is engaged with the corresponding planetary gear by a coaxially provided needle bearing.

In any of the above aspects, preferably, the pitch of the adjacent helical blade at the front end of the auger rod is smaller than the pitch of the adjacent helical blade at the rear end.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the motor is matched with the planetary gear speed reduction structure to be connected with the spiral drill rod, so that the speed reduction effect can be effectively achieved, the coaxiality of the driving shaft and the output shaft can be guaranteed, and the stability of the spiral drill rod in the rotating use process is guaranteed.

2. This structure adopts motor cover and the protection of hollow spacing shell realization to whole inside driving medium when using, and the design that adopts coaxial structure simultaneously can reduce holistic volume, occupation space size when reducing the use.

3. The drill point at the front end of the structure can be rapidly detached and replaced as required, meanwhile, the whole auger stem and the coaxial output speed reducing mechanism can also be detached and fixedly connected, and the operation flexibility is strong.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or components are generally identified by like reference numerals. In the drawings, elements or components are not necessarily drawn to scale.

Fig. 1 is a schematic view of the internal partial section structure of the present invention.

Fig. 2 is a schematic diagram of the local enlarged structure of the present invention.

In the figure, 1, a spiral drill rod; 2. a motor; 3. a connecting seat; 4. a front end bolt member; 5. drilling a tip; 6. a detachable bolt member; 7. a sun gear; 8. a sun gear pressure plate; 9. a compression bolt member; 10. a hollow limiting shell; 11. a motor cover; 12. a motor connecting disc; 13. a connecting bolt member; 14. a planet carrier gland; 15. a planet carrier; 16. the planet carrier is fixedly connected with the shaft; 17. a planetary wheel shaft; 18. a planetary gear; 19. a needle bearing; 20. a stepped connecting shaft; 21. a bearing chamber end cap; 22. a tapered roller bearing; 23. a stop washer; 24. a round nut.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1-2, an auger stem with a speed reduction mechanism comprises an auger stem 1 and a motor 2, wherein the motor 2 is fixedly installed on a connecting seat 3, an output shaft of the motor 2 is connected with a coaxial output speed reduction mechanism, the output shaft of the motor 2, the output end of the coaxial output speed reduction mechanism and the auger stem 1 are coaxially arranged, a drill tip 5 is fixed at the working end of the auger stem 1 through a front-end bolt piece 4, and the output end of the coaxial output speed reduction mechanism and the rear end of the auger stem 1 are detachably and fixedly connected through a detachable bolt piece 6.

The drill rod structure can effectively realize speed reduction control through the coaxial output speed reducing mechanism after being provided with the coaxial output speed reducing mechanism, thereby ensuring effective power output during drilling, simultaneously adopting the coaxial speed reducing mechanism to effectively ensure the coaxiality of a driving shaft and an output shaft, and ensuring the stability of the spiral drill rod 1 during rotation use.

In any of the above schemes, preferably, the coaxial output speed reducing mechanism includes a sun gear 7 fixedly connected and sleeved with the output shaft of the motor 2, a sun gear pressing plate 8 is tightly supported and installed inside the central cavity of the sun gear 7, the sun gear pressing plate 8 is fixedly connected with the output shaft of the motor 2 through a compression bolt piece 9, a planetary wheel set is arranged on the periphery of the sun gear 7 and used for realizing coaxial rotation along with the rotation of the sun gear 7, a fixedly arranged hollow limiting shell 10 is coaxially sleeved on the periphery of the planetary wheel set, and the output end of the planetary wheel set penetrates through the hollow limiting shell 10 and then is coaxially and fixedly connected with the auger stem 1.

The coaxial output speed reducing mechanism is connected with the motor 2 and then mainly plays a transmission role through the sun gear 7, the planetary wheel set which is matched with the sun gear 7 in the circumferential direction can be driven to rotate under the action of the movement of the sun gear 7, and the spiral drill rod 1 is driven to rotate through the stepped connecting shaft 20 connected with the planetary wheel set after the planetary wheel set rotates.

In any of the above schemes, preferably, a motor cover 11 is covered on the periphery of the motor 2, the motor cover 11 is fixedly installed on the connecting seat 3, a motor connecting disc 12 is fixed at the front end of the casing of the motor 2, the rear end of the motor connecting disc 12 abuts against the motor cover 11, the front end of the motor connecting disc 12 abuts against the rear end of the hollow limiting casing 10, and the motor cover 11, the motor connecting disc 12 and the hollow limiting casing 10 are bolted and fixed by a plurality of connecting bolt pieces 13 arranged at intervals along the circumference thereof.

The stability of whole peripheral structure can be guaranteed after motor connection pad 12, motor cover 11, hollow spacing shell 10 fixed connection, and motor cover 11 plays the effect to motor 2 protection, and hollow spacing shell 10 can play the effect of carrying on spacingly and protecting to inside coaxial output reduction gears.

In any of the above schemes, preferably, the planetary gear set includes a planetary carrier gland 14 and a planetary carrier 15 coaxially disposed at the rear side and the front side of the sun gear 7, the planetary carrier gland 14 and the planetary carrier 15 are relatively fixedly connected by a plurality of planetary carrier fixed connecting shafts 16 uniformly spaced along the circumferential direction thereof, a planetary gear shaft 17 is installed in the space between the planetary carrier gland 14 and the planetary carrier 15 between the adjacent planetary carrier fixed connecting shafts 16, a planetary gear 18 is coaxially and cooperatively installed on each planetary gear shaft 17, two ends of each planetary gear shaft 17 are respectively and fixedly installed on the planetary carrier gland 14 and the planetary carrier 15 at the corresponding positions, each planetary gear 18 is respectively used for meshing with the sun gear 7, a limit cavity at the rear end of the hollow limit shell 10 is used for limiting the outer side of each planetary gear 18, the front side intercommunication in the spacing chamber of the rear end of hollow spacing shell 10 has a bearing chamber the front end center an organic whole of planet carrier 15 has linked firmly stepped connection axle 20, the front end shaft section of stepped connection axle 20 extends behind the mounting hole of auger stem 1 rear end and realize linking firmly through removable bolt spare 6 the front end of hollow spacing shell 10 is installed a activity and is cup jointed bearing chamber end cover 21 on the 20 lateral walls of stepped connection axle.

The transmission ratio of the sun gear 7 and the planet gears 18 is selected by the user according to the requirement.

The sun gear 7, the whole planet carrier gland 14, the planet carrier 15 and the planet gear 18 form a planetary gear train, power is input by the sun gear 7 and output by the planet carrier 15, so the planet carrier 15 is in a rotating state when being output, the stepped connecting shaft 20 integrally connected with the front end of the planet carrier 15 can rotate along with the planet carrier 15, and the power is output to finally drive the auger stem 1 connected with the power to realize rotary motion.

The limiting cavity at the rear end of the hollow limiting shell 10 can prevent internal components from being rocked in a transition mode, and effective limiting is achieved.

The front end of the stepped connection shaft 20 is inserted into and connected with the rear end of the auger stem 1, and then the connection stability can be effectively guaranteed through the detachable bolt piece 6, meanwhile, the disassembly and replacement of different sizes can be effectively realized according to different use requirements, and the universality is high.

In any of the above schemes, it is preferable that tapered roller bearings 22 for supporting the stepped connection shaft 20 are installed at intervals in the bearing cavity, and a stop washer 23 and a round nut 24 which are fitted on the stepped connection shaft 20 at corresponding positions are respectively and tightly installed in the bearing cavity between the tapered roller bearing 22 at the front end and the bearing chamber end cover 21.

The two tapered roller bearings 22 can effectively stabilize and fix the axis of the stepped connecting shaft 20, effectively ensure the coaxiality of the stepped connecting shaft 20 during movement and rotation, and ensure the stability of the movement.

In any of the above-mentioned aspects, it is preferable that each of the planetary shafts 17 is engaged with the corresponding planetary gear 18 through a needle bearing 19 coaxially disposed therebetween, and the needle bearings 19 may function to reduce the running resistance when the planetary gears 18 rotate.

In any of the above schemes, preferably, the pitch of the adjacent helical blade at the front end of the auger stem 1 is smaller than that of the adjacent helical blade at the rear end, so that the pitch of the front working end is set to be closer, the drilling effect can be ensured, and the drilling and discharging effects are improved.

When in work:

the connecting seat 3 of the whole structure is fixedly installed on external construction equipment as required, then the motor 2 is communicated with a power supply of the equipment, the sun gear 7 of the coaxial output speed reducing mechanism can be driven to rotate by controlling the work of the motor 2, the planet carrier 15 on the planetary wheel set is finally driven to rotate coaxially, power is output to the stepped connecting shaft 20, and the auger stem 1 connected with the stepped connecting shaft 20 is finally driven to rotate and complete work.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification; to those skilled in the art, any alternative improvements or changes made to the embodiments of the present invention are all within the scope of the present invention.

The parts of the present invention not described in detail are the known techniques of those skilled in the art.

Claims

1. The utility model provides a take speed reducing mechanism's auger stem, includes auger stem, motor, its characterized in that: the motor is fixedly installed on a connecting seat, an output shaft of the motor is connected with a coaxial output speed reducing mechanism, an output shaft of the motor, an output end of the coaxial output speed reducing mechanism and the auger stem are coaxially arranged, a drill point is fixed at a working end of the auger stem through a front-end bolt piece, and the output end of the coaxial output speed reducing mechanism and the rear end of the auger stem are detachably and fixedly connected through a detachable bolt piece.

2. The auger shaft with a speed reduction mechanism according to claim 1, wherein: the coaxial output speed reducing mechanism comprises a sun gear fixedly connected with an output shaft of the motor in a sleeved mode, a sun gear pressing plate is tightly arranged inside a central cavity of the sun gear in an abutting mode, the sun gear pressing plate is fixedly connected with the output shaft of the motor through a compression bolt, a planetary wheel set is arranged on the periphery of the sun gear and used for following the rotation of the sun gear to achieve coaxial rotation, a hollow limiting shell fixedly arranged is sleeved on the periphery of the planetary wheel set, and the output end of the planetary wheel set penetrates out of the hollow limiting shell and then is fixedly connected with the auger stem in a coaxial mode.

3. The auger shaft with a speed reduction mechanism according to claim 2, wherein: the motor is characterized in that a motor cover is covered on the periphery of the motor, the motor cover is fixedly installed on the connecting seat, a motor connecting disc is fixed at the front end of a shell of the motor, the rear end of the motor connecting disc abuts against the motor cover, the front end of the motor connecting disc abuts against the rear end of the hollow limiting shell, and the motor cover, the motor connecting disc and the hollow limiting shell are fixedly bolted through a plurality of connecting bolt pieces arranged at intervals along the circumference of the motor cover.

4. An auger stem with a speed reduction mechanism as claimed in claim 3, wherein: the planetary wheel set comprises planetary carrier glands and planetary carriers which are coaxially arranged at the rear side and the front side of the sun gear respectively, the planetary carrier glands and the planetary carriers are relatively and fixedly connected through a plurality of planetary carrier fixed connection shafts which are uniformly arranged at intervals along the circumferential direction of the planetary carrier glands, a planetary wheel shaft is arranged in the space between the planetary carrier glands and the planetary carriers between the adjacent planetary carrier fixed connection shafts, a planetary gear is coaxially matched and arranged on each planetary wheel shaft, two ends of each planetary wheel shaft are fixedly arranged on the planetary carrier glands and the planetary carriers at corresponding positions respectively, each planetary gear is respectively engaged with the sun gear, a limit cavity at the rear end of the hollow limit shell is used for limiting the outer side of each planetary gear, and a bearing cavity is communicated with the front side of the limit cavity at the rear end of the hollow limit shell, the front end center of planet carrier an organic whole has linked firmly the ladder connecting axle, the front end axle section of ladder connecting axle extends behind the mounting hole of auger stem rear end and realize linking firmly through removable bolt spare the front end of hollow spacing shell is installed a activity and is cup jointed bearing room end cover on the ladder connecting axle lateral wall.

5. An auger stem with a speed reduction mechanism as claimed in claim 4, wherein: tapered roller bearings for supporting the stepped connecting shaft are arranged in the bearing cavity at intervals, and a stop washer and a round nut which are matched with the stepped connecting shaft at corresponding positions are respectively and tightly abutted and arranged in the bearing cavity between the tapered roller bearings at the front end and the bearing chamber end cover.

6. An auger stem with a speed reduction mechanism as claimed in claim 5, wherein: and the planetary gear shafts are matched with the corresponding planetary gears through coaxially arranged needle roller bearings respectively.

7. An auger stem with a speed reduction mechanism as claimed in claim 6, wherein: the pitch of the adjacent helical blade at the front end of the auger stem is smaller than that of the adjacent helical blade at the rear end.