CN112283323A

CN112283323A - Small-size underground high-power transmission mechanism

Info

Publication number: CN112283323A
Application number: CN202011091420.7A
Authority: CN
Inventors: 张正玉; 刘虎; 周同; 陈增宝; 李阳兵; 袁军; 颜磊; 孙玉刚; 刘俊; 李国良; 范杰
Original assignee: Sinopec Oilfield Service Corp; Sinopec Southwest Petroleum Engineering Co Ltd Logging Branch
Current assignee: Southwest Measurement And Control Co Of Sinopec Jingwei Co ltd; Sinopec Oilfield Service Corp; Sinopec Jingwei Co Ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-01-29
Anticipated expiration: 2040-10-13
Also published as: CN112283323B

Abstract

The invention relates to a small-size underground high-power transmission mechanism which comprises a motor, wherein an output shaft of the motor is connected with a planetary reducer, an output end of the planetary reducer is arranged on one side of a coupler, a shaft on the other side of the coupler is respectively connected with a left crawling arm and a right crawling arm, and the motor, the planetary reducer and the coupler are all arranged on a rack. According to the transmission mechanism, the sliding rod, the clamping groove, the hollow gear ring, the left crawling arm, the right crawling arm and the crawling wheel are arranged, so that when teeth on the surface of the transmission gear are greatly abraded, a user does not need to replace the whole transmission gear by pulling the sliding rod out of the clamping groove and replacing the new hollow gear ring, the economic investment required by replacing the whole transmission gear is reduced, the transmission mechanism mainly comprises a planetary reducer, a right-angle reducer and a parallel shaft reducer, the structure is compact, the large reduction ratio and the large-torque transmission can be realized in a small space, the totally-enclosed design is adopted, the service life is long, the maintenance cost is low, and the practicability is high.

Description

Small-size underground high-power transmission mechanism

Technical Field

The invention relates to the technical field of transmission mechanisms, in particular to a small-size underground high-power transmission mechanism.

Background

In order to solve the conveying problem of horizontal wells and highly-deviated downhole equipment, particularly for perforation, production wells, after-casing well logging, downhole operation and the like, a high-power conveyor is needed to convey a logging instrument, a perforating gun and the like to a downhole horizontal section for operation.

Present reduction gear equipment is because size restriction, mostly is open structure, parts such as gear, bearing are non-sealed form, all need wash the spare part of renewal after accomplishing in the pit at every turn, it is comparatively troublesome to use, and reduction ratio and torque transmission are less moreover, and the gear in the reduction gear is great because the friction when in-service use, produce wearing and tearing easily, often need change whole gear when the tooth of the gear tooth appears damaging, make economic input great, the practicality is lower.

Disclosure of Invention

In order to overcome the problems in the background art, the invention provides a small-size underground high-power transmission mechanism, which solves the problems that the conventional speed reducer is troublesome in use, small in speed reduction ratio and torque transmission, and large in economic investment and low in practicability because the whole gear is often required to be replaced when teeth of the gear are damaged.

In order to achieve the above object, the present invention is realized in the following manner:

small-size is high-power drive mechanism in pit, including the motor, the output shaft of motor links to each other with planetary reducer, planetary reducer's output is installed in shaft coupling one side, and the axle of shaft coupling opposite side links to each other with the arm of crawling on the left side and the arm of crawling on the right side respectively, and motor, planetary reducer, shaft coupling are all installed in the frame.

Crawling wheel is all installed to the right flank of the arm of crawling on a left side and the right side of crawling on the right side, used drive gear all includes the base member in planetary reducer, the arm of crawling on a left side and the arm of crawling on the right side, hollow ring gear is installed to the outward appearance of base member, the internal surface fixed connection of hollow ring gear has twelve stoppers.

The limiting block is located in a limiting groove, twelve limiting grooves are formed in the outer surface of the base body, six limiting grooves are formed in opposite surfaces of the limiting grooves, limiting mechanisms are arranged in the clamping grooves, and the six limiting mechanisms are fixedly connected with the back surface of the same pull ring through six movable connecting mechanisms respectively.

As a further scheme of the invention, the limiting mechanism comprises a sliding rod, the sliding rod is positioned in the clamping groove, a sliding sleeve and a spring are respectively sleeved outside the sliding rod, two ends of the spring are respectively abutted against opposite surfaces of the sliding sleeve and the movable connecting mechanism, and the other end of the sliding rod is fixedly connected with one end of the movable connecting mechanism.

As a further scheme of the invention, the movable connection mechanism comprises two fixed frames, the two fixed frames are respectively and movably connected with the same movable rod through two pin shafts, the two fixed frames are respectively and fixedly connected with one end of the sliding rod and the back of the pull ring, and the upper surface of one of the fixed frames is abutted against one end of the spring.

As a further aspect of the invention, the front face of the tab has two protrusions.

As a further scheme of the invention, the inner surface of the base body is provided with a plurality of roller pin bodies, and the connecting shaft is arranged in a cavity formed by the plurality of roller pin bodies.

As a further scheme of the invention, the outer surfaces of the left crawling arm and the right crawling arm are respectively provided with a shell, and the left crawling arm and the right crawling arm are respectively provided with a right-angle speed reducer and a parallel shaft speed reducer.

The invention has the beneficial effects that:

1. the invention has the advantages that through the arrangement of the slide rod, the clamping groove, the hollow gear ring, the left crawling arm, the right crawling arm and the crawling wheel, when teeth on the surface of the transmission gear are greatly worn, a user can pull the slide rod out of the clamping groove and replace a new hollow gear ring, so that the whole transmission gear is not required to be replaced, the economic investment required by replacing the whole transmission gear is reduced, the transmission mechanism mainly comprises the planetary reducer, the right-angle reducer and the parallel shaft reducer, the planetary reducer, the right-angle reducer and the parallel shaft reducer are respectively matched with proper reduction ratios, the performance strength of each part is balanced, the right-angle reducer and the parallel shaft reducer are positioned in the left crawling arm and the right crawling arm, the crawling wheel rotating action is realized when the left crawling arm and the right crawling arm are opened or folded, the structure is compact, and the large reduction ratio can be realized in a small space, the high-torque transmission device has the advantages of large torque transmission, totally-enclosed design, long service life, low maintenance cost and higher practicability.

2. According to the invention, the circle of roller bodies are arranged between the base body and the connecting shaft, so that the device can replace traditional bearing balls with larger radial size with roller bodies with smaller diameter, thereby greatly reducing the radial size of the speed reducer, the inner ring of the base body is directly used as the outer ring of the bearing, and the connected outer ring is used as the inner ring of the bearing, so that the structure saves space and meets the requirement of high-power transmission.

3. According to the invention, internal parts of the transmission gear are all made of high-strength steel, the surface hardness reaches more than HRC55, the connecting shaft is made of bearing steel, and the surface hardness reaches HRC60, so that the device is not easy to wear, and the normal service life of the device is ensured.

Drawings

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a schematic view of the folded structure of the crawling arm of the present invention;

FIG. 3 is a schematic view of the opened structure of the crawling arm of the present invention;

FIG. 4 is a schematic front view of the transmission gear of the present invention;

FIG. 5 is a schematic diagram of a right sectional view of a transmission gear according to the present invention;

fig. 6 is an enlarged schematic view of the structure at a of the present invention.

In the figure, 1-motor, 2-planetary reducer, 3-coupler, 4-frame, 5-left crawling arm, 6-right crawling arm, 7-shell, 8-crawling wheel and 9-transmission gear;

901-base body, 902-hollow gear ring, 903-limiting block, 904-limiting groove, 905-clamping groove, 906-limiting mechanism, 907-pull ring, 908-movable connecting mechanism, 909-roller body and 9010-connecting shaft;

9061-slide bar, 9062-sliding sleeve, 9063-spring;

9081-fixed frame, 9082-pin shaft, 9083-movable rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer and more obvious, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so as to facilitate understanding of the skilled person.

As shown in fig. 1 to 6, one technical solution provided by the present invention is:

a small-size underground high-power transmission mechanism comprises a motor 1, a planetary reducer 2, a coupler 3, a rack 4, a left crawling arm 5, a right crawling arm 6, a shell 7, crawling wheels 8 and a transmission gear 9. The output shaft of motor 1 is planetary reducer 2 of peripheral hardware, motor 1, planetary reducer 2, shaft coupling 3 all installs in frame 4, the right flank of frame 4 is provided with left creeping arm 5 and right creeping arm 6 respectively, planetary reducer 2's output shaft links to each other with shaft coupling 3, the connecting axle of 3 opposite sides of shaft coupling passes through the gear and all links to each other with left creeping arm 5 and right creeping arm 6, all include right angle reduction gear and parallel shaft reduction gear in left creeping arm 5 and the right creeping arm 6. The right-angle reducer and the parallel-shaft reducer enable the left crawling arm 5 and the right crawling arm 6 to be capable of realizing the rotating action of the crawling wheel 8 when being opened or folded.

The right flank of the arm of crawling 5 and the right side of crawling 6 on a left side all is equipped with crawl wheel 8, and the internal planetary gear of the gear box of the arm of crawling is connected with crawl wheel meshing, and used in the arm of crawling 5 and the arm of crawling 6 on a left side all includes base member 901 with planet carrier gear drive gear 9 of power transmission for crawl wheel 8, forms through all adopting the high strength steel to make with drive gear 9 internals, and the surface hardness reaches more than HRC 55.

The transmission gear 9 comprises a base 901, a hollow gear ring 902, a limiting block 903, a limiting groove 904, a limiting mechanism 906, a pull ring 907, a movable connecting mechanism 908, a needle roller body 909 and a connecting shaft 9010.

The connecting shaft 9010 is made of bearing steel, the surface hardness reaches HRC60, the transmission gear 9 is not prone to abrasion, the normal service life of the transmission gear 9 is guaranteed, the hollow gear ring 902 is installed on the outer surface of the base 901, and twelve limiting blocks 903 are fixedly connected to the inner surface of the hollow gear ring 902.

Stopper 903 is located spacing groove 904, through setting up stopper 903 and spacing groove 904, make can inject hollow ring gear 902's angle and position when stopper 903 card goes into spacing groove 904, make hollow ring gear 902 can not rotate, also can not backward move, twelve spacing grooves 904 all set up the surface at base member 901, wherein six spacing grooves 904 become circular equipartition, it has draw-in groove 905 to locate the design at every spacing groove 904, be provided with stop gear 906 in the draw-in groove 905, six stop gear 906 are respectively through the back fixed connection of six swing joint mechanisms 908 and same pull ring 907.

Specifically, as shown in fig. 2 and 3, the left crawling arm 5 and the right crawling arm 6 are both provided with a shell 7 with an opening on the side surface, and the left crawling arm 5 and the right crawling arm 6 both include a right-angle speed reducer and a parallel-shaft speed reducer therein. Through setting up casing 7 for casing 7 can shelter from right angle reduction gear and parallel shaft reduction gear, thereby can reduce the negative effects that external force factor caused right angle reduction gear and parallel shaft reduction gear.

Specifically, as shown in fig. 4, a plurality of needle rollers 909 are disposed on an inner surface of the base 901, and the plurality of needle rollers 909 are disposed on an outer surface of the connecting shaft 9010. By arranging the circle of roller bodies 909 between the base 901 and the connecting shaft 9010, the device can replace traditional bearing balls with larger radial size with the roller bodies 909 with smaller diameters, so that the radial size of the speed reducer is greatly reduced, the inner ring of the base 901 is directly used as the outer ring of a bearing, and the outer ring of the connecting shaft 9010 is used as the inner ring of the bearing, and the structure saves space and meets the requirement of high-power transmission.

Specifically, as shown in fig. 5, the front surface of the pull ring 907 is provided with two protrusions, and the two protrusions are arranged on the front surface of the pull ring 907, so that the friction force between the fingers of the worker and the pull ring 907 can be improved, and the use of the device by the user is facilitated.

Specifically, as shown in fig. 6, the limiting mechanism 906 includes a sliding rod 9081, the sliding rod 9061 is located in the clamping groove 905, and by arranging the sliding rod 9061, when the sliding rod 9061 is clamped into the clamping groove 905, the position of the limiting groove 904 can be limited, and is matched with the limiting between the limiting groove 904 and the limiting block 903, so that the position of the hollow gear ring 902 can be fixed, the sliding rod 9061 is respectively sleeved with a sliding sleeve 9062 and a spring 9063, one end of the spring 9063 abuts against the lower surface of the sliding sleeve 9062, and the other end of the spring 9063 abuts against the upper surface of the movable connection mechanism 908. Through setting up spring 9063 for spring 9063 can utilize self elasticity to drive slide bar 9061 to remove and block into draw-in groove 905 always, and sliding sleeve 9062 fixed connection is on base member 901, through setting up sliding sleeve 9062, thereby can carry out spacingly for slide bar 9061's removal, make the more stable that slide bar 9061 removed, the other end of slide bar 9061 and the one end fixed connection of swing joint mechanism 908, swing joint mechanism 908 includes two mounts 9081, two mounts 9081 are respectively through two round pin axles 9082 and same movable rod 9083 swing joint. By arranging the fixed frame 9081, the pin shaft 9082 and the movable rod 9083, when the front fixed frame 9081 moves forwards, one end of the movable rod 9083 can be driven to move forwards through the pin shaft 9082, so that the sliding rod 9061 is driven to move and be separated from the clamping groove 905, a user can conveniently detach the hollow gear ring 902, the two fixed frames 9081 are fixedly connected to one end of the sliding rod 9061 and the back face of the pull ring 907 respectively, and the upper surface of one of the fixed frames 9081 is abutted to one end of the spring 9063.

The working principle of the invention is as follows:

s1, when teeth on the surface of the transmission gear 9 are greatly abraded, a user can pull the front fixing frames 9081 forwards through the pull ring 907, so that the front fixing frames 9081 can drive the sliding rods 9061 to be away from each other through the pin shaft 9082, the movable rod 9083 and the rear fixing frame 9081, and the sliding rods 9061 can be separated from the clamped clamping grooves 905 respectively.

S2, the user can pull the hollow gear ring 902 forward, the limit blocks 903 can be separated from the limit grooves 904 respectively, the user can replace a new hollow gear ring 902, and the limit blocks 903 in the new hollow gear ring 902 can be clamped into the limit grooves 904 respectively.

S3, the pull ring 907 is loosened, so that the springs 9063 can drive the sliding rods 9061 to be clamped into the clamping grooves 905 respectively by utilizing the tension of the springs 9063, and the position of the hollow gear ring 902 can be fixed.

In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. The two elements may be mechanically or electrically connected, directly or indirectly connected through an intermediate medium, or connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Finally, while the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention encompassed by the appended claims.

Claims

1. A transmission gear is characterized by comprising a base body and a hollow gear ring, wherein teeth are arranged on the outer surface of the hollow gear ring, a limiting block is arranged on the inner surface of the hollow gear ring, a limiting groove is formed in the outer surface of the base body, the limiting block on the inner surface of the hollow gear ring is arranged in the limiting groove in the outer surface of the base body, and the hollow gear ring is fixedly connected with the base body through the limiting block and the limiting groove.

2. The transmission gear according to claim 1, wherein the number of the limiting blocks and the limiting grooves is 12, and the limiting blocks and the limiting grooves are arranged at equal intervals.

3. The transmission gear according to claim 2, wherein any 6 of the 12 limiting blocks have grooves on the bottom surface, one end of each of the 6 limiting mechanisms is clamped in the corresponding groove, the other end of each of the 6 limiting mechanisms is connected with 6 movable connecting mechanisms, and the 6 movable connecting mechanisms are fixedly connected with the back surface of the same pull ring in the middle.

4. The transmission gear according to claim 3, wherein any 6 of the 12 limited blocks are provided with a groove, and the limited blocks on every two grooved bottom surfaces are separated by an un-grooved limited block.

5. The transmission gear according to claim 3, wherein the limiting mechanism comprises a sliding rod, the sliding rod is located in the clamping groove, the sliding rod is sleeved with the sliding sleeve and the spring, two ends of the spring are respectively abutted to opposite surfaces of the sliding sleeve and the movable connecting mechanism, and the other end of the sliding rod is fixedly connected with one end of the movable connecting mechanism.

6. The transmission gear according to claim 3, wherein the movable connection mechanism includes two fixed frames, the two fixed frames are movably connected with the same movable rod through two pin shafts respectively, the two fixed frames are fixedly connected with one end of the sliding rod and the back of the pull ring respectively, and the upper surface of one of the fixed frames is abutted against one end of the spring; the front surface of the pull ring is provided with two bulges.

7. A gear mechanism comprising a transmission gear according to any one of claims 1 to 8, a plurality of needle bodies mounted on an inner surface of an inner race of the transmission gear, and a connecting shaft mounted in a cavity formed by the plurality of needle bodies.

8. A decelerator comprising a decelerator inside of which a geared drive is used using the gear mechanism according to claim 7.

9. A crawler arm comprising a speed reducer according to claim 8, wherein the speed reducer is a right-angle speed reducer and a parallel-axis speed reducer.

10. A transmission mechanism is characterized by comprising a motor, wherein an output shaft of the motor is connected with a planetary reducer, an output end of the planetary reducer is installed on one side of a coupler, a shaft on the other side of the coupler is respectively connected with a left crawling arm and a right crawling arm, the motor, the planetary reducer and the coupler are all installed on a rack, the left crawling arm and the right crawling arm internally contain the gear mechanism according to claim 7, and shells are installed outside the left crawling arm and the right crawling arm.