Rotary drilling mechanism for drill carriage

Abstract

The invention relates to the technical field of drill carriages, and discloses a rotary drilling mechanism for a drill carriage, a driving assembly comprises a drill spindle and a plurality of cycloid motors, the drill spindle is mounted in a gyrator, the cycloid motors are mounted at one end of the gyrator, the outer side of the drill spindle is fixedly sleeved with a large gear, an output shaft of the large gear is inserted into the gyrator, and the output shaft of the large gear is fixedly connected with the gyrator. Output shafts of the cycloid motors are fixedly connected with planetary gears; according to the invention, the plurality of cycloid motors are arranged, so that the output torque and the rotating speed which are large enough can be ensured; meanwhile, the cycloid motors of the same specification can be selected, mutual replacement is facilitated, the standardization degree of products can be improved, the error rate is reduced, and the production efficiency is improved; one, two, three or four cycloid motors can be respectively started according to the load so as to adjust the output torque; 2 or 4 starting is preferentially recommended, and when the 2 starting is carried out, the 2 starting is set to be symmetrically distributed so as to ensure that the stress of the drill spindle is uniform.

Description

Technical Field

[0001] The invention relates to the technical field of drilling vehicles, in particular to a rotary drilling mechanism for a drilling vehicle. Background Art

[0002] The rotary drilling mechanism for a drilling vehicle is generally a rotator, which is used for outputting torque and speed of an anchor drilling vehicle, a rock drilling vehicle and an oil drilling rig. The rotator of an existing drilling vehicle, a rock drilling vehicle and an oil drilling rig is usually a single hydraulic motor connected to an output shaft or a reduction box, which is used to output torque and speed, and then drive the drill rod and drill bit to perform drilling operations: its rated torque and speed are not large enough and cannot be adjusted, or when the rated torque and speed are large enough, the shape of the power mechanism is particularly large, and it cannot drill through when encountering a harder rock formation, and when encountering a soft rock formation, energy is wasted, and the overall size is large, and it is inconvenient to install. Therefore, a rotary drilling mechanism for a drilling vehicle is proposed. Summary of the invention

[0003] The object of the present invention is to provide a rotary drilling mechanism for a drilling vehicle to solve the problem proposed in the above background technology that the rotator of the existing drilling vehicle, rock drilling vehicle and oil drilling rig is usually a single hydraulic motor connected to the output shaft or reduction box, which is used to output torque and rotation speed, and then drive the drill rod and drill bit to perform drilling operations: its rated torque and rotation speed are not large enough and cannot be adjusted, or when the rated torque and rotation speed are large enough, the shape of the power mechanism is particularly large, and it cannot drill through when encountering harder rock formations, and when encountering soft rock formations, energy is wasted, and the overall size is large and inconvenient to install.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a rotary drilling mechanism for a drilling vehicle, comprising a rotator of a drilling rig, on which a driving assembly is installed;

[0005] The driving assembly includes a drill shaft and several cycloidal motors. The drill shaft is installed inside the rotator, and several cycloidal motors are installed at one end of the rotator. A large gear is fixedly sleeved on the outer side of the drill shaft, and the output shaft is inserted into the inside of the rotator, and the output shafts of several cycloidal motors are fixedly connected to planetary gears.

[0006] Preferably, the above-mentioned cycloidal motor is provided with a cycloidal motor tail, and the cycloidal motor tail is respectively provided with an oil inlet and an oil outlet.

[0007] Preferably, a mounting seat is provided on the rotator, and a fixing hole for installation is provided on the mounting seat.

[0008] Preferably, the rotator is in a square shape, and the drill axis is located at the center of the rotator.

[0009] Preferably, the plurality of planetary gears are meshedly connected to the outer side of the large gear, and the plurality of planetary gears are evenly distributed on the outer side of the large gear.

[0010] Preferably, the above-mentioned several cycloidal motors are evenly distributed at one end of the rotator.

[0011] Preferably, the interface sizes of the oil inlet and the oil outlet are the same.

[0012] Preferably, the shape of the rotator is polygonal.

[0013] Compared with the prior art, the present invention adopts the above technical solution and has the following technical effects:

[0014] 1. The present invention can ensure a sufficiently large output torque and speed by setting a plurality of cycloidal motors; at the same time, the cycloidal motors can be selected with the same specifications, which is convenient for mutual replacement, which is beneficial to improve the standardization of products, reduce the error rate, and improve production efficiency;

[0015] 2. In the present invention, a plurality of cycloidal motors are evenly distributed around the drill shaft, with the center forming a square, which can make the overall shape of the cycloidal motor smaller and make the force of each cycloidal motor on the drill shaft uniform, thereby increasing the service life of the drill shaft 2;

[0016] 3. The oil inlet and outlet of the cycloidal motor in the present invention are both located at the tail of the cycloidal motor, which is convenient for the installation of the oil pipe and makes the entire oil circuit neat and beautiful; and the interfaces of the oil inlet and outlet at the tail of the cycloidal motor are the same, which is convenient for configuring the high-pressure mooring pipe assembly, reducing the specifications of parts and components, and facilitating management;

[0017] 4. The cycloidal motors in the present invention can be started 1, 2, 3 or 4 times according to the load size to adjust the output torque; it is preferred to start 2 or 4 times, and when starting 2 times, they are set to be started symmetrically to ensure that the drill shaft is evenly stressed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0020] It should be understood that the terms "length", "width", "up", "down", "front", "back", "first", "second", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0022] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the present invention;

[0025] Figure 3 It is a left-side structural schematic diagram of the present invention;

[0026] Figure 4 It is a schematic diagram of the top view structure of the present invention;

[0027] Figure 5 It is a right view structural schematic diagram of the present invention;

[0028] Figure 6 It is a schematic diagram of the meshing structure of the planetary gear and the large gear of the present invention.

[0029] Explanation of the reference numerals: 1. rotator; 11. fixing hole; 12. mounting seat; 101. large gear; 102. planetary gear; 2. drill shaft; 3. cycloidal motor; 31. tail of cycloidal motor; 32. oil inlet; 33. oil outlet. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0032] Example 1

[0033] In the prior art, the rotator of a drilling vehicle, a rock drilling vehicle, or an oil drilling rig is usually a single hydraulic motor connected to an output shaft or a reduction box, which is used to output torque and rotation speed, thereby driving the drill rod and drill bit to perform drilling operations: the rated torque and rotation speed are not large enough and cannot be adjusted, or when the rated torque and rotation speed are large enough, the shape of the power mechanism is particularly large, and it cannot drill through harder rock formations. When encountering soft rock formations, energy is wasted, and the overall size is large, making installation inconvenient.

[0034] See also Figure 1-6 The present invention provides a technical solution: a rotary drilling mechanism for a drilling vehicle, comprising a rotator 1 of the drilling rig, on which a driving assembly is installed.

[0035] By setting up a driving component, the size of the output torque can be adjusted, and at the same time, a sufficiently large output torque and rotation speed can be ensured; the driving component includes a drill shaft 2 and a plurality of cycloidal motors 3, the drill shaft 2 is installed inside the rotator 1, and the plurality of cycloidal motors 3 are installed at one end of the rotator 1, and the outer side of the drill shaft 2 is fixedly sleeved with a large gear 101, and the output shaft is inserted into the inside of the rotator 1, and the output shafts of the plurality of cycloidal motors 3 are fixedly connected with planetary gears 102, and the plurality of planetary gears 102 are meshedly connected to the outer side of the large gear 101; the cycloidal motors 3 can be started 1, 2, 3 or 4 according to the load size to adjust the size of the output torque; it is preferred to start 2 or 4, and when starting 2, it is set to start 2 symmetrically distributed to ensure that the drill shaft 2 is evenly stressed.

[0036] In order to facilitate the management and use of the device, the cycloidal motor 3 is provided with a cycloidal motor tail 31, and the cycloidal motor tail 31 is respectively provided with an oil inlet 32 ​​and an oil outlet 33, and the interface sizes of the oil inlet 32 ​​and the oil outlet 33 are the same; the oil inlet 32 ​​and the oil outlet 33 of the cycloidal motor 3 are both located at the cycloidal motor tail 31, which is convenient for the installation of the oil pipe, making the entire oil circuit neat and beautiful; and the interfaces of the oil inlet 32 ​​and the oil outlet 33 of the cycloidal motor tail 31 are the same, which is convenient for configuring the high-pressure mooring assembly, reducing the specifications of parts and components, and facilitating management.

[0037] In order to facilitate the use of the device, a mounting seat 12 is provided on the rotator 1, and a fixing hole 11 for installation is provided on the mounting seat 12; the fixing hole 11 is provided on the mounting seat 12 for fixing on the movable guide rail to realize the feeding movement.

[0038] A number of planetary gears 102 are evenly distributed on the outside of the large gear 101, and a number of planetary gears 102 are evenly meshed on the outside of the large gear 101 to ensure that the drill shaft 2 is evenly stressed; a number of cycloidal motors 3 are evenly distributed on one end of the rotator 1, the rotator 1 is square in shape, the drill shaft 2 is located at the center of the rotator 1, and a number of cycloidal motors 3 are evenly distributed around the drill shaft 2, with the center forming a square, which can make the overall shape of the cycloidal motor 3 smaller and make the force of each cycloidal motor 3 on the drill shaft 2 uniform, thereby improving the service life of the drill shaft 2.

[0039] Working principle or structural principle, multiple cycloidal motors 3 can be installed on the rotator 1. By installing four cycloidal motors 3, the four cycloidal motors 3 are evenly distributed and fixed around the rotator 1, and the centers of the four cycloidal motors 3 form a square; the drill shaft 2 is located in the center of the square, and the compact design can make the overall shape of the cycloidal motor 3 smaller, and make the force of each cycloidal motor 3 on the drill shaft 2 uniform, thereby increasing the service life of the drill shaft; the four cycloidal motors 3 are selected to be of the same specification and can be replaced with each other, which is conducive to improving the standardization of products, reducing the error rate, and improving production efficiency; the oil inlet 32 ​​and the oil outlet 33 of the four cycloidal motors 3 are all located at the tail, which is convenient for the installation of the oil pipe, making the entire oil circuit neat and beautiful; the interfaces of the oil inlet 32 ​​and the oil outlet 33 on the tail 31 of the four cycloidal motors are the same, which is convenient for configuring the high-pressure oil pipe assembly, reducing the specifications of parts and components, and facilitating management; and the four cycloidal motors 3 can be started 1, 2, 3 or 4 respectively according to the load size to adjust the output torque. It is preferred to start 2 or 4. When starting 2, they are set to start 2 symmetrically distributed to ensure that the drill shaft 2 is evenly stressed.

[0040] Example 2

[0041] The difference from the first embodiment is that the shape of the rotator 1 is a polygon. The polygonal setting can match the evenly distributed installation of multiple cycloidal motors 3, while reducing the overall size of the rotator 1 and improving the convenience of installation of the rotator 1.

[0042] So far, the embodiments of the present invention have been described in detail in conjunction with the accompanying drawings. It should be noted that the implementation methods not shown or described in the drawings or the body of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each component are not limited to the various specific structures, shapes or methods mentioned in the embodiments, and ordinary technicians in the field can simply change or replace them.

[0043] It will be appreciated by those skilled in the art that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.

[0044] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rotary drilling mechanism for a drilling vehicle, comprising a rotary device (1) of a drilling rig, characterized in that: A driving assembly is installed on the rotator (1); The driving assembly comprises a drill shaft (2) and a plurality of cycloidal motors (3); the drill shaft (2) is mounted inside the rotator (1); the plurality of cycloidal motors (3) are mounted on one end of the rotator (1); a large gear (101) is fixedly sleeved on the outer side of the drill shaft (2); the output shaft is inserted into the interior of the rotator (1); and the output shafts of the plurality of cycloidal motors (3) are fixedly connected to planetary gears (102).

2. A rotary drilling mechanism for a drilling vehicle according to claim 1, characterized in that: The cycloid motor (3) is provided with a cycloid motor tail (31), and the cycloid motor tail (31) is respectively provided with an oil inlet (32) and an oil outlet (33).

3. The rotary drilling mechanism for a drilling vehicle according to claim 1, characterized in that: The rotator (1) is provided with a mounting seat (12), and the mounting seat (12) is provided with a fixing hole (11) for mounting.

4. The rotary drilling mechanism for a drilling vehicle according to claim 1, characterized in that: The shape of the rotator (1) is a square, and the drill shaft (2) is located at the center of the rotator (1).

5. The rotary drilling mechanism for a drilling vehicle according to claim 1, characterized in that: A plurality of the planetary gears (102) are meshedly connected to the outside of the large gear (101), and the plurality of the planetary gears (102) are evenly distributed on the outside of the large gear (101).

6. The rotary drilling mechanism for a drilling vehicle according to claim 1, characterized in that: A plurality of the cycloid motors (3) are evenly distributed at one end of the rotator (1).

7. The rotary drilling mechanism for a drilling vehicle according to claim 2, characterized in that: The interface sizes of the oil inlet (32) and the oil outlet (33) are the same.

8. The rotary drilling mechanism for a drilling vehicle according to claim 1, characterized in that: The gyrator (1) is in the shape of a polygon.

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