A speed reducer, a cutting drum mechanism, and a tunneling and anchoring machine

Abstract

This invention discloses a speed reducer, a cutting drum mechanism, and a roadheader. The speed reducer includes a left transmission mechanism and a right transmission mechanism. Both the left and right transmission mechanisms include a parallel shaft gear transmission unit. The parallel shaft gear transmission unit is driven by a bevel gear vertical reversing transmission unit. The bevel gear vertical reversing transmission unit is driven by two planetary transmission units. The two planetary transmission units are symmetrical about the driving bevel gear of the bevel gear vertical reversing transmission unit and have the same speed ratio. The parallel shaft gear transmission units, bevel gear vertical reversing transmission units, and planetary transmission units of the left and right transmission mechanisms are symmetrical and have the same speed ratio. The cutting drum mechanism includes the speed reducer. The roadheader includes the cutting drum mechanism. The speed reducer in this invention is reasonably designed and compact in structure, making it an ideal speed reducer for roadheader cutting devices. It can also be used in other similar devices, such as rotary tillers and rotary excavators, which operate by rotation.

Description

Technical Field

[0001] This invention relates to the field of speed reducer technology, and in particular to a speed reducer, a cutting drum mechanism, and a tunneling and anchoring machine. Background Technology

[0002] The speed reducer is a crucial core component of the roadheader. Driven by a motor, the speed reducer directly bears the vibration and impact generated during coal and rock cutting. The working conditions are harsh, and the reliability requirements are high.

[0003] Currently, there are two types of transmission structures for the reducers of roadheader / anchor blockers:

[0004] The first structure is as follows: after parallel helical gear speed change and bevel gear vertical direction speed change, the output is split to left and right double two-stage planetary gear speed change. For example, the cutting reducer and anchor excavator disclosed in Chinese invention patent application with publication date of March 27, 2020 and publication number CN 110925406 A include a housing, a lubrication component, an input component, a transmission component, and an output component. The lubrication component is located in the housing; the input component is located in the housing and includes an input shaft; the transmission component is located in the housing and includes a transmission shaft, which is connected to the input shaft; the output component is located in the housing and is connected to the transmission shaft; there is one input component and two output components, respectively located at both ends of the transmission shaft.

[0005] The second structure involves adding a vertical direction-changing transmission with a confluence bevel gear and a speed ratio of 1 before the first structure. For example, the reducer of a cutting device for a roadheader unit disclosed in Chinese invention patent application CN 104613162 A (publication date: May 13, 2015) includes upper and lower housings, left and right support housings, upper and lower gearboxes, left and right planetary gearboxes, a cutting block and a cutting cover, left and right support housing covers, five-stage left and right planetary carriers, and a hub. The left and right power input bevel gear shafts are connected to the left and right planetary gearboxes respectively via driven bevel gears, splined shaft driving helical gears, and transmission shafts. Cutting roller mechanisms are connected to both sides of the left and right planetary gearboxes, forming a dual-motor drive.

[0006] The load-bearing capacity of the two aforementioned reducer structures is suitable for all-coal roadways or semi-coal-rock roadways with interbedded rock. However, thin coal seam semi-coal-rock roadways are widely distributed in China, with relatively hard rock on the roof and floor. This requires roadheaders to have stronger rock-breaking capabilities, while the reducers must be able to withstand the vibrations and impacts generated during rock cutting. The load-bearing capacity of existing reducers cannot meet the rock-breaking requirements of thin coal seam semi-coal-rock and soft rock roadways. Therefore, given the limited space available for the reducer, it is necessary to design a new reducer structure with high load-bearing capacity. Summary of the Invention

[0007] To address the shortcomings in the aforementioned background technology, this invention proposes a speed reducer, a cutting drum mechanism, and a roadheader, which solves the technical problem that the load-bearing capacity of existing speed reducers cannot meet the rock-breaking requirements of thin coal seams, semi-coal and rocky sections, and soft rock roadways.

[0008] The technical solution of this application is as follows:

[0009] A speed reducer includes a left transmission mechanism and a right transmission mechanism. Both the left and right transmission mechanisms include a parallel shaft gear transmission unit. The parallel shaft gear transmission unit is driven by a bevel gear vertical reversing transmission unit. The bevel gear vertical reversing transmission unit is driven by two planetary transmission units. The two planetary transmission units are symmetrical about the driving bevel gear of the bevel gear vertical reversing transmission unit and have the same speed ratio. The parallel shaft gear transmission units, the bevel gear vertical reversing transmission units, and the planetary transmission units of the left and right transmission mechanisms are all symmetrical about each other and have the same speed ratio.

[0010] Furthermore, the planetary transmission unit is a two-stage planetary transmission unit.

[0011] Furthermore, the left transmission mechanism includes a left housing, which includes a left high-speed end gearbox for the parallel shaft gear transmission unit and a left bevel gearbox for the bevel gear vertical reversing transmission unit. The two planetary transmission units of the left transmission mechanism include a left two-stage planetary gearbox I located to the left of the left bevel gearbox and a left two-stage planetary gearbox II located to the right of the left bevel gearbox. The right transmission mechanism includes a right housing connected to the left housing, which includes a right high-speed end gearbox for the parallel shaft gear transmission unit and a right bevel gearbox for the bevel gear vertical reversing transmission unit. The two planetary transmission units of the right transmission mechanism include a right two-stage planetary gearbox I located to the right of the right bevel gearbox and a right two-stage planetary gearbox II located to the left of the right bevel gearbox.

[0012] Furthermore, a left driving bevel gear is provided inside the left bevel gearbox, and a left driven bevel gear is connected to one side of the left driving bevel gear. The left driven bevel gear is coaxially connected to a left drive shaft. The two ends of the left drive shaft are positioned inside the left bevel gearbox by bearings. The left end of the left drive shaft is connected to a secondary planetary transmission unit located in the left two-stage planetary gearbox I, and the right end is connected to a secondary planetary transmission unit located in the left two-stage planetary gearbox II.

[0013] Furthermore, the secondary planetary transmission unit within the left two-stage planetary gearbox I includes a left primary sun gear I coaxially connected to the left transmission shaft, a left primary internal gear ring I connected to the left bevel gearbox, and a left primary planet gear I disposed between the left primary sun gear I and the left primary internal gear ring I; the left primary planet carrier I of the left primary planet gear I is coaxially connected to the left secondary sun gear I, the left primary internal gear ring I is fixedly connected to the left secondary planet carrier I, and a left secondary planet gear I is disposed on the left secondary planet carrier I between the left secondary sun gear I and the left secondary internal gear ring I.

[0014] Furthermore, the secondary planetary transmission unit within the left two-stage planetary gearbox II includes a left primary sun gear II coaxially connected to the left transmission shaft, a left primary internal gear ring II connected to the left bevel gearbox, and a left primary planet gear II disposed between the left primary sun gear II and the left primary internal gear ring II; the left primary planet carrier II of the left primary planet gear II is coaxially connected to the left secondary sun gear II, the left primary internal gear ring II is fixedly connected to the left secondary planet carrier II, and a left secondary planet gear II disposed on the left secondary planet carrier II between the left secondary sun gear II and the left secondary internal gear ring II.

[0015] Furthermore, the right bevel gearbox is equipped with a right driving bevel gear, one side of which is connected to a right driven bevel gear. The right driven bevel gear is coaxially connected to a right drive shaft. Both ends of the right drive shaft are positioned in the right bevel gearbox by bearings. The right end of the right drive shaft is connected to a secondary planetary transmission unit located in the right two-stage planetary gearbox I, and the right end is connected to a secondary planetary transmission unit located in the right two-stage planetary gearbox II.

[0016] Furthermore, the second-stage planetary transmission unit within the right two-stage planetary gearbox I includes a right first-stage sun gear I coaxially connected to the right transmission shaft, a right first-stage internal gear ring I connected to the right bevel gearbox, and a right first-stage planet gear I disposed between the right first-stage sun gear I and the right first-stage internal gear ring I; the right first-stage planet carrier I of the right first-stage planet gear I is coaxially connected to the right second-stage sun gear I, the right first-stage internal gear ring I is fixedly connected to the right second-stage planet carrier I, and the right second-stage planet gear I is disposed on the right second-stage planet carrier I between the right second-stage sun gear I and the right second-stage internal gear ring I.

[0017] Furthermore, the second-stage planetary transmission unit within the right two-stage planetary gearbox II includes a right first-stage sun gear II coaxially connected to the right transmission shaft, a right first-stage internal gear ring II connected to the right bevel gearbox, and a right first-stage planet gear II disposed between the right first-stage sun gear II and the right first-stage internal gear ring II; the right first-stage planet carrier II of the right first-stage planet gear II is coaxially connected to the right second-stage sun gear II, the right first-stage internal gear ring II is fixedly connected to the right second-stage planet carrier II, and the right second-stage planet gear II is disposed on the right second-stage planet carrier II between the right second-stage sun gear II and the right second-stage internal gear ring II.

[0018] Furthermore, the left high-speed end gearbox is provided with a left first-stage gear shaft, a left idler gear I, a left idler gear II, and a left fourth-axis gear that are sequentially connected in transmission. The left fourth-axis gear is connected to the driving bevel gear in the left bevel gearbox. The right high-speed end gearbox is provided with a right first-stage gear shaft, a right idler gear I, a right idler gear II, and a right fourth-axis gear that are sequentially connected in transmission. The right fourth-axis gear is connected to the driving bevel gear in the right bevel gearbox.

[0019] Furthermore, the left high-speed end gearbox, right high-speed end gearbox, left bevel gearbox, left two-stage planetary gearbox I, left two-stage planetary gearbox II, right bevel gearbox, right two-stage planetary gearbox I, and right two-stage planetary gearbox II are all sealed designs. The connections and rotating parts of each component are sealed by floating seals, oil seals, and sealing rings. Each gearbox contains mechanical lubricating oil, and the oil level is guaranteed by an oil level plug. At the same time, an external lubrication pump is used to circulate the lubricating oil through the lubrication oil channel to achieve dynamic thermal balance of each gearbox.

[0020] Furthermore, in the left two-stage planetary gearbox I, a left double-layer metal high-pressure oil pipe is installed on the left side of the left second-stage planetary carrier I, and in the right two-stage planetary gearbox I, a right double-layer metal high-pressure oil pipe is installed on the right side of the right second-stage planetary carrier I. Both the left double-layer metal high-pressure oil pipe and the right double-layer metal high-pressure oil pipe are sealed with end caps to extend the high-pressure oil passage inside the reducer.

[0021] A cutting roller mechanism includes the reducer described in any of the above claims, wherein the left secondary internal gear ring I is connected to a left cutting roller, the right secondary internal gear ring I is connected to a right cutting roller, and an intermediate cutting roller is connected between the left secondary internal gear ring II and the right secondary internal gear ring II.

[0022] Furthermore, the left secondary internal gear ring I and the left cutting roller, and the right secondary internal gear ring I and the right cutting roller are all connected by splines, and the left secondary internal gear ring II and the right secondary internal gear ring II are both connected to the intermediate cutting roller by hexagonal connecting blocks.

[0023] Furthermore, both the left and right bevel gearboxes are provided with cutting blocks and cutting caps on their outer peripheries.

[0024] An anchor excavator includes a cutting drum mechanism as described in any of the above claims, wherein the left primary gear shaft is connected to a left motor, the right primary gear shaft is connected to a right motor, and the right motor and the left motor operate synchronously and output the same rotational speed.

[0025] Furthermore, the left motor and / or right motor are electric motors or hydraulic motors.

[0026] This invention possesses significant advantages over prior art. Addressing the harsh environment and confined space requirements of roadheader cutting reduction devices in underground coal mines, it employs a left-right housing, a symmetrical double-sided structure, and a dual two-stage planetary gear mechanism on each side. Power from a single-sided motor is transmitted via parallel shaft gears, bevel gears for vertical direction change, and dual two-stage planetary gear transmission, all through a confluence of the rollers. This reduction gear significantly increases the power-to-volume ratio within a limited space. The reduction gear achieves the extension and retraction of the cutting roller by combining a reliable high-pressure oil passage and a double-layer metal high-pressure oil pipe within the reduction gear. This rationally designed and compact reduction gear is ideal for roadheader cutting devices. It can also be used in other similar devices, such as rotary tillers and rotary excavators, which operate through rotation.

[0027] Compared with existing technologies, the technical solution of this invention, based on the working characteristics of the roadheader cutting device and my country's coal conditions, is based on parallel helical gear speed change, bevel gear vertical direction change speed change followed by split left and right double two-stage planetary gear speed change output. It develops a dual-input symmetrical structure with a single-stage parallel gear speed change, a single-stage bevel gear vertical direction change speed change, and double-sided two-stage planetary gear speed change synchronized through the intermediate cutting drum. It internally constructs a high-power heavy-duty reducer with lubrication oil passages and high-pressure oil passages, which improves the rock-breaking ability of the roadheader and makes the full-width cutting mechanism of the roadheader and anchor machine work more stably and reliably. It provides technical support for the serial development of mining machinery in my country, provides technical reserves for heavy tunneling equipment, and improves the technical level of my country's coal mine roadway tunneling equipment field. Attached Figure Description

[0028] To more clearly illustrate the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a front view of the overall structure of the present invention;

[0030] Figure 2 This is a top view of the overall structure of the present invention;

[0031] Figure 3 This is a side view of the overall structure of the present invention;

[0032] Figure 4 for Figure 1 A partial rotated sectional view of the AA high-speed end;

[0033] Figure 5 for Figure 1 Partial cross-sectional view of the low-speed end of the BB;

[0034] The meanings of the markings in the attached diagram are as follows:

[0035] 1-Left housing, 2-Cover plate, 3-Left high-speed end gearbox, 4-Right high-speed end gearbox, 5-Right housing, 6-Cutting block, 7-Right two-stage planetary gearbox I, 8-Right bevel gearbox, 9-Right two-stage planetary gearbox II, 10-High-strength bolt, 11-Left two-stage planetary gearbox II, 12-Left bevel gearbox, 13-Left two-stage planetary gearbox I, 14-Cutting cover, 15-Left power input spline sleeve, 16-Left first-stage gear shaft, 17-Left idler gear I, 18-Left idler gear II, 19-Left four-axis gear, 20-Right power input spline sleeve, 21-Right first-stage gear 22-Right idler gear I, 23-Right idler gear II, 24-Right fourth shaft gear, 25-Right splined shaft, 26-Left splined shaft, 27-Left driving bevel gear, 28-Left driven bevel gear, 29-Left drive shaft, 30-Left first-stage sun gear II, 31-Left first-stage planetary carrier II, 32-Left second-stage sun gear II, 33-Left second-stage planetary carrier II, 34-Left second-stage internal gear ring II, 35-Left second-stage planetary gear II, 36-Left second-stage planetary shaft II, 37-Left first-stage internal gear ring II, 38-Left first-stage planetary gear II, 39-Left first-stage planetary shaft II, 40-Left bearing housing, 41-Left 42-Left First-stage Planetary Shaft I, 43-Left First-stage Internal Gear Ring I, 44-Left Second-stage Planetary Shaft I, 45-Left Second-stage Planetary Gear I, 46-Left Second-stage Internal Gear Ring I, 47-Left Second-stage Planetary Carrier I, 48-Left Second-stage Sun Gear I, 49-Left First-stage Planetary Carrier I, 50-Left First-stage Sun Gear I, 51-Right Second-stage Internal Gear Ring II, 52-Right Second-stage Planetary Carrier II, 53-Right Second-stage Sun Gear II, 54-Right First-stage Planetary Carrier II, 55-Right First-stage Sun Gear II, 56-Right Drive Shaft, 57-Right Driven Bevel Gear, 58-Left Driving Bevel Gear, 59-Right First-stage Planetary Shaft I, 50-Right First-stage Sun Gear II 60-Right first-stage planetary carrier I, 61-Right second-stage sun gear I, 62-Right second-stage planetary carrier I, 63-Right second-stage internal gear ring I, 64-Right second-stage planetary gear I, 65-Right second-stage planetary shaft I, 66-Right first-stage internal gear ring I, 67-Right first-stage planetary gear I, 68-Right first-stage planetary shaft I, 69-Right bearing housing, 70-Right first-stage planetary shaft II, 71-Right first-stage planetary gear II, 72-Right first-stage internal gear ring II, 73-Right second-stage planetary shaft II, 74-Right second-stage planetary gear II, 75-Right double-layer metal high-pressure oil pipe, 76-Left double-layer metal high-pressure oil pipe. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] A speed reducer includes a left transmission mechanism and a right transmission mechanism. Both the left and right transmission mechanisms include a parallel shaft gear transmission unit. The parallel shaft gear transmission unit is driven by a bevel gear vertical reversing transmission unit. The bevel gear vertical reversing transmission unit is driven by two planetary transmission units. The two planetary transmission units are symmetrical about the driving bevel gears of the bevel gear vertical reversing transmission unit and have the same speed ratio. The parallel shaft gear transmission units, the bevel gear vertical reversing transmission units, and the planetary transmission units in the left and right transmission mechanisms are all symmetrical about each other and have the same speed ratio.

[0038] Furthermore, the planetary transmission unit is a two-stage planetary transmission unit.

[0039] This invention features a symmetrical arrangement of two-sided structures. Each side employs a parallel shaft gear transmission, a bevel gear for vertical direction change and flow splitting, and a two-stage planetary transmission for output, combining the flow from both sides. The left and right gearboxes are modularly designed, resulting in a symmetrical left-right structure.

[0040] As a preferred embodiment of the aforementioned speed reducer, such as Figure 1 , 2 As shown in Figures 3, 4, and 5, the structure includes a left housing 1, a right housing 5, a left high-speed end gearbox 3, a right high-speed end gearbox 4, a left bevel gearbox 12, a right bevel gearbox 8, a left two-stage planetary gearbox I 13, a left two-stage planetary gearbox II 11, a right two-stage planetary gearbox I 7, a right two-stage planetary gearbox II 9, a cutting block 6, a cutting cover 14, and a cover plate 2.

[0041] The left housing 1 is equipped with a left high-speed end gearbox 3 and a left bevel gearbox 12. The left bevel gearbox 12 is equipped with a left two-stage planetary gearbox I 13 and a left two-stage planetary gearbox II 11 on both sides. The right housing 5 is equipped with a right high-speed end gearbox 4 and a right bevel gearbox 8. The right bevel gearbox 8 is equipped with a right two-stage planetary gearbox I 7 and a right two-stage planetary gearbox II 9 on both sides.

[0042] The left high-speed end gearbox 3 is connected to the left power input spline sleeve 15. The left power input spline sleeve 15 is connected to the left first stage gear shaft 16, which is connected to the left spline shaft 26 through the left idler gear I 17, the left idler gear II 18, and the left fourth shaft gear 19. The left spline shaft 26 is connected to the driving bevel gear 27 of the left bevel gearbox 12. The left bevel gearbox 12 is connected to the two-stage left planetary gearbox I 13 and the left two-stage planetary gearbox II 11 through the left drive shaft 29.

[0043] The right high-speed end gearbox 4 is connected to the right power input spline sleeve 20, which is connected to the right first-stage gear shaft 21. The right spline shaft 25 is connected through the right idler gear I 22, the right idler gear II 23, and the right fourth-axis gear 24. The right spline shaft 25 is connected to the driving bevel gear 58 of the right bevel gearbox 8. The right bevel gearbox 8 is connected to the right two-stage planetary gearbox I 7 and the right two-stage planetary gearbox II 9 through the right drive shaft 56.

[0044] The left secondary internal gear ring I46 on the left two-stage planetary gearbox I13 is connected to the left cutting roller of the cutting reduction device via a spline. The left two-stage planetary gearbox II11 and the right two-stage planetary gearbox II9 are connected to the middle cutting roller of the cutting reduction device via hexagonal connecting blocks on the left secondary internal gear ring II34 and the right secondary internal gear ring II51, respectively. The right secondary internal gear ring I63 on the right two-stage planetary gearbox I7 is connected to the right cutting roller of the cutting reduction device via a spline. The left two-stage planetary gearbox I13, the left two-stage planetary gearbox II11, the right two-stage planetary gearbox I7, and the right two-stage planetary gearbox II9 operate synchronously through the middle cutting roller, forming a dual-motor drive to complete the cutting operation synchronously.

[0045] The specific connection structure is as follows: Figure 4 , 5 As shown, the motor power is input from the left and right sides respectively, and is then converted by parallel shaft gears, bevel gears for vertical direction conversion, and double two-stage planetary gears before being output synchronously by the middle cutting roller of the reduction device.

[0046] The left-side connection structure is as follows: the left power input spline sleeve 15 of the left high-speed end gearbox 3 connects to the motor of the cutting reduction device and the left first-stage gear shaft 16. The left first-stage gear shaft 16 drives the left idler gear I 17, the left idler gear II 18, and the left four-axis gear 19. The four-axis gear 19 is connected to the left spline shaft 26. The left spline shaft 26 is connected to the driving bevel gear 27 of the left bevel gearbox 12. The driving bevel gear 27 drives the driven bevel gear 28. The driven bevel gear 28 is connected to the left first-stage sun gear II 30 and the left first-stage sun gear I 50 through the left transmission shaft 29. The left first-stage sun gear I50 of the left two-stage planetary gearbox I13 is connected to three odd-numbered left first-stage planetary gears I42. The left first-stage planetary gears I42 drive the left first-stage planetary carrier I49. The left first-stage internal gear ring I43 is fixed to the left housing 1. The rotation of the left first-stage planetary carrier I49 drives the left second-stage sun gear I48. The left second-stage sun gear I48 drives five odd-numbered left second-stage planetary gears I45. The left second-stage planetary gears I45 drive the left second-stage internal gear ring I46. The left second-stage planetary carrier I47 is fixed to the left first-stage internal gear ring I43. The left second-stage internal gear ring I46 is connected to the left cutting roller of the cutting reduction device via a spline. The left two-stage planetary gearbox I13... The left first-stage sun gear II 30 of the star gearbox II 11 is connected to three odd-numbered left first-stage planetary gears II 38. The left first-stage planetary gears II 38 drive the left first-stage planetary carrier II 31 to rotate. The left first-stage internal gear ring II is fixed to the left housing 1 through the left bearing seat 40. The left first-stage planetary carrier II 31 is connected to drive the left second-stage sun gear II 32. The left second-stage sun gear II 32 is connected to drive five odd-numbered left second-stage planetary gears II 35. The left second-stage planetary gears II 35 are connected to drive the left second-stage internal gear ring II 34 to rotate. The left second-stage planetary carrier II is fixed on the left first-stage internal gear ring II. The left second-stage internal gear ring II 34 is connected to the left end of the middle cutting roller of the cutting reduction device through a hexagonal connecting block.

[0047] The right-side connection structure is as follows: the right power input spline sleeve 20 of the right high-speed end gearbox 4 connects to the motor of the cutting reduction device and the right first-stage gear shaft 21. The right first-stage gear shaft 21 drives the right idler gear I 22, the right idler gear II 23, and the right fourth-axis gear 24. The right fourth-axis gear 24 is connected to the right spline shaft 25. The right spline shaft 25 is connected to the right driving bevel gear 58 of the right bevel gearbox 8. The driving bevel gear 58 drives the right driven bevel gear 57. The right driven bevel gear 57 is connected to the right first-stage sun gear II 55 and the right first-stage sun gear I 59 through the right transmission shaft 56. The right first-stage sun gear I59 of the right two-stage planetary gearbox I7 is connected to three odd-numbered right first-stage planetary gears I67. The right first-stage planetary gears I67 drive the right first-stage planetary carrier I60 to rotate. The right first-stage internal gear ring I66 is fixed to the right housing 5. The right first-stage planetary carrier I60 connects to and drives the right second-stage sun gear I61. The right second-stage sun gear I61 connects to and drives five odd-numbered right second-stage planetary gears I64. The right second-stage planetary gears I64 connect to and drive the right second-stage internal gear ring I63 to rotate. The right second-stage planetary carrier I62 is fixed to the right first-stage internal gear ring I66. The right second-stage internal gear ring I63 is connected to the right cutting roller of the cutting reduction device via a spline. (Right two-stage planetary gear...) The right first-stage sun gear II55 of box II9 is ​​connected to three odd-numbered right first-stage planetary gears II71. The right first-stage planetary gears II71 drive the right first-stage planetary carrier II54 to rotate. The right first-stage internal gear ring II72 is fixed to the right housing 5 through the right bearing seat 69. The right first-stage planetary carrier II54 is connected to drive the right second-stage sun gear II53. The right second-stage sun gear II53 is connected to drive the five odd-numbered right second-stage planetary gears II74. The right second-stage planetary gears II74 are connected to drive the right second-stage internal gear ring II51 to rotate. The right second-stage planetary carrier II52 is fixed on the right first-stage internal gear ring II72. The right second-stage internal gear ring II51 is connected to the right end of the middle cutting roller of the cutting reduction device through a hexagonal connecting block.

[0048] The above structure is a diagram of the reducer's transmission relationship. The overall structure is symmetrically arranged on both sides. Each side consists of parallel shaft gears for speed change, bevel gears for vertical direction change and flow splitting, and a two-stage planetary gearbox for output on both sides, combined with the flow merging on the left and right sides. The left and right gearboxes are modularly designed, and the left and right structures are symmetrical.

[0049] In a preferred embodiment of the reducer, the left high-speed end gearbox 3, the right high-speed end gearbox 4, the left bevel gearbox 12, the left two-stage planetary gearbox I 13, the left two-stage planetary gearbox II 11, the right bevel gearbox 8, the right two-stage planetary gearbox I 7, and the right two-stage planetary gearbox II 9 are all sealed. The connection points and rotating parts are sealed by floating seals, oil seals, and sealing rings. Mechanical lubricating oil is placed inside the gearbox to prevent oil leakage. The oil level is guaranteed by the oil level plug to ensure excellent lubrication of the lubrication system. At the same time, an external lubrication pump is used to circulate the lubricating oil through the lubrication oil passage to achieve dynamic thermal balance of the gearbox.

[0050] In a preferred embodiment of the reducer, each gearbox is sealed, with strict control over sealing specifications and installation dimensions. Each gear is positioned by bearings and must rotate flexibly. The sun gear, planet gears, and internal gear ring in the planetary transmission have high meshing accuracy and the parts must be precise. Installation and debugging must be rigorous. All gears must be made of alloy materials with excellent mechanical properties and undergo hardening treatment. Except for the internal gear ring, all gears must be ground gears. The internal gear ring is machined with high precision and then hardened and nitrided.

[0051] As a preferred embodiment of the speed reducer, Figure 2 , 3 As shown, the left shell 1 and the right shell 5 are positioned by two pins and fastened with 10 high-strength bolts. The tightening torque meets the bolt grade requirements and is treated with anaerobic adhesive to prevent loosening.

[0052] In summary, the transmission relationship of this invention is as follows: the overall structure is symmetrically arranged on both sides, with each side consisting of a parallel shaft gear transmission, a bevel gear vertical direction-changing speed-splitting transmission, and a two-stage planetary transmission output on both sides, combined with the confluence of the left and right sides. In the parallel shaft gear transmission, several idler gears can be added to achieve a compact center distance.

[0053] As a preferred embodiment of the speed reducer, the main structure of the present invention consists of: a left housing 1, a right housing 5, a left high-speed end gearbox 3, a right high-speed end gearbox 4, a left bevel gearbox 12, a right bevel gearbox 8, a left two-stage planetary gearbox I 13, a left two-stage planetary gearbox II 11, a right two-stage planetary gearbox I 7, a two-stage planetary gearbox II 9, a cutting block 6, a cutting cover 14, and a cover plate 2. The left high-speed end gearbox 3 and the left bevel gearbox 12 are located inside the left housing 1; the right high-speed end gearbox 4 and the right bevel gearbox 8 are located inside the right housing 5. The left housing 1 and the right housing 5 are positioned by two pins 16 and are connected together by high-strength bolts 10. The left two-stage planetary gearbox I 13 and the left two-stage planetary gearbox II 11 are arranged on both sides of the left bevel gearbox 12. The left two-stage planetary gearbox I 13 is connected to the left housing 1 by the left first-stage internal gear ring I 43 with high-strength bolts. The left two-stage planetary gearbox II 11 is connected to the left housing 1 by the left first-stage internal gear ring II and the bearing seat 40 with high-strength bolts. The right two-stage planetary gearbox I 7 and the right two-stage planetary gearbox II 9 are arranged on both sides of the right bevel gearbox 8. The right two-stage planetary gearbox I 7 is connected to the right housing 5 by the right first-stage internal gear ring I 66 with high-strength bolts. The right two-stage planetary gearbox II 9 is connected to the right housing 5 by the right first-stage internal gear ring II 72 and the bearing seat 69 with high-strength bolts. The left high-speed end gearbox 3 has a left power input spline sleeve 15 connected to the left drive motor, and the right high-speed end gearbox 4 has a right power input spline sleeve 20 connected to the right drive motor. The left housing 1 and right housing 5 are connected to the cutting arm via a stop and a screw hole. The left second-stage internal gear ring I 46 in the left two-stage planetary gearbox I 13 is splined to the left cutting roller of the cutting reduction device. The left second-stage internal gear ring II 34 in the left two-stage planetary gearbox II 11 is connected to the left end of the middle cutting roller of the cutting reduction device via a hexagonal connecting block. The right second-stage internal gear ring II 51 in the right two-stage planetary gearbox II 9 is connected to the right end of the middle cutting roller of the cutting reduction device via a hexagonal connecting block. The right second-stage internal gear ring I 63 in the right two-stage planetary gearbox I 7 is connected to the right cutting roller of the cutting reduction device via a spline. Two cutting blocks 6 are connected to the left housing 1 and right housing 5 respectively. Two cutting caps 14 are connected to the left housing 1 and right housing 5 respectively. Lubrication channels are arranged on the left housing 1 and right housing 5; high-pressure oil passages are arranged on the left housing 1, right housing 5, left first-stage internal gear ring I43, left second-stage planetary carrier I47, right first-stage internal gear ring I66, and right second-stage planetary carrier I62. A left double-layer metal high-pressure oil pipe 76 is installed on the left side of the left second-stage planetary carrier I47 in the left two-stage planetary gearbox I13, and a right double-layer metal high-pressure oil pipe 75 is installed on the right side of the right second-stage planetary carrier I62 in the right two-stage planetary gearbox I7. The left and right double-sided metal high-pressure oil pipes are sealed by end caps, thus extending the high-pressure oil passages inside the reducer.

[0054] In a preferred embodiment of the reducer, the left high-speed end gearbox 3 is a sealed housing. The lower part of the left high-speed end gearbox 3 is the left power input spline sleeve 15. Inside the left high-speed end gearbox 3 are, in sequence, the left first-stage gear shaft 16, the left idler gear I 17, the left idler gear II 18, the left fourth-axis gear 19, and the left spline shaft 26. The left first-stage gear shaft 16, the left idler gear I 17, the left idler gear II 18, and the left fourth-axis gear 19 are respectively positioned by their respective shafts, keys, bearings, and end covers. The left first-stage gear shaft 16 is connected to the left power input spline sleeve 15 through a spline, and the left fourth-axis gear 19 is connected to the left spline shaft 26 through a spline.

[0055] In a preferred embodiment of the reducer, the right high-speed end gearbox 4 is a sealed housing. The lower part of the right high-speed end gearbox 4 is the right power input spline sleeve 20. Inside the right high-speed end gearbox 4 are, in sequence, the right first-stage gear shaft 21, the right idler gear I 22, the right idler gear II 23, the right fourth-axis gear 24, and the right spline shaft 25. The right first-stage gear shaft 21, the right idler gear I 22, the right idler gear II 23, and the right fourth-axis gear 24 are respectively positioned by their respective shafts, keys, bearings, and end covers. The right first-stage gear shaft 21 is connected to the right power input spline sleeve 20 through a spline, and the right fourth-axis gear 24 is connected to the right spline shaft 25 through a spline.

[0056] In a preferred embodiment of the speed reducer, the left bevel gearbox 12 is a sealed housing. The lower part of the left bevel gearbox 12 contains a driving bevel gear 27, which is vertically connected to a driven bevel gear 28. The driven bevel gear 28 is fixed to the left drive shaft 29. Both ends of the left drive shaft 29 are positioned on the left housing 1 and bearing seats 40 via bearings, with the bearing seats 40 fixed to the left housing 1. The upper part of the left bevel gearbox 12 contains a cutting cover 14, which is fixed to the left housing 1.

[0057] In a preferred embodiment of the reducer, the right bevel gearbox 8 is a sealed housing. The lower part of the right bevel gearbox 8 contains a driving bevel gear 58, which is vertically connected to a driven bevel gear 57. The driven bevel gear 57 is fixed to the right drive shaft 56. Both ends of the right drive shaft 56 are positioned on the right housing 5 and bearing seats 69 via bearings, with the bearing seats 69 fixed to the right housing 5. The upper part of the right bevel gearbox 8 contains a cutting cover 14, which is fixed to the right housing 5.

[0058] In a preferred embodiment of the reducer, the left two-stage planetary gearbox I13 is a sealed housing. The left first-stage internal gear ring I43 is fixed to the left housing 1. The left first-stage sun gear I50 is connected to the left drive shaft 29 and the left first-stage planetary gear I42. The left first-stage planetary gear I42 is fixed to the planetary shaft 41, and the planetary shaft 41 is fixed to the left first-stage planet carrier I49. The left first-stage planetary gear I42 is connected to the left first-stage sun gear I50 on the inner side and to the left first-stage internal gear ring I43 on the outer side. The left second-stage sun gear I48 is connected to the left first-stage planetary carrier I49. The planetary carrier I49 and the left second-stage planetary gear I45 are fixed on the planetary shaft 44, which is fixed on the left second-stage planetary carrier I47. The left second-stage planetary carrier I47 is fixed on the left first-stage internal gear ring I43. The left second-stage planetary gear I45 is connected to the left second-stage sun gear I48 on the inner side and to the left second-stage internal gear ring I46 on the outer side. The left second-stage internal gear ring I46 is fixed on the left second-stage planetary carrier I47 to achieve radial and axial positioning. The left second-stage planetary carrier I47 is connected to the left double-layer metal high-pressure oil pipe 76 on the outer side.

[0059] In a preferred embodiment of the reducer, the right two-stage planetary gearbox I7 is a sealed housing. The right first-stage internal gear ring I66 is fixed to the right housing 5. The right first-stage sun gear I59 connects the right drive shaft 56 and the right first-stage planetary gear I67. The right first-stage planetary gear I67 is fixed on the planetary shaft 68, and the planetary shaft 68 is fixed on the right first-stage planet carrier I60. The right first-stage planetary gear I67 is connected to the right first-stage sun gear I59 on its inner side and to the right first-stage internal gear ring I66 on its outer side. The right second-stage sun gear I61 is connected to the right first-stage planetary carrier I60. The planetary carrier I60 and the right second-stage planetary gear I64 are fixed on the planetary shaft 65, which is fixed on the right second-stage planetary carrier I62. The right second-stage planetary carrier I62 is fixed on the right first-stage internal gear ring I66. The right second-stage planetary gear I64 is connected to the right first-stage sun gear I59 on the inner side and to the right second-stage internal gear ring I63 on the outer side. The right second-stage internal gear ring I63 is fixed on the right second-stage planetary carrier I62, achieving radial and axial positioning. The right double-layer metal high-pressure oil pipe 75 is connected to the outer side of the right second-stage planetary carrier I62.

[0060] In a preferred embodiment of the reducer, the left two-stage planetary gearbox II11 is a sealed housing. The left first-stage internal gear ring II is fixed to the left housing 1. The left first-stage sun gear II30 is connected to the left drive shaft 29 and the left first-stage planet gear II38. The left first-stage planet gear II38 is fixed to the planet shaft 39, and the planet shaft 39 is fixed to the left first-stage planet carrier II31. The left first-stage planet gear II38 is connected to the left first-stage sun gear II30 on the inner side and to the left first-stage internal gear ring II on the outer side. The left second-stage sun gear II32 is connected to the left first-stage planet carrier II31 and the left second-stage planet gear II35. The left second-stage planet gear II35 is fixed to the planet shaft 36, and the planet shaft 36 is fixed to the left second-stage planet carrier II. The left second-stage planet carrier II is fixed to the left first-stage internal gear ring II. The left second-stage planet gear II35 is connected to the left first-stage sun gear II30 on the inner side and to the left second-stage internal gear ring II34 on the outer side. The left second-stage internal gear ring II34 is fixed to the left second-stage planet carrier II, achieving radial and axial positioning.

[0061] In a preferred embodiment of the reducer, the right two-stage planetary gearbox II9 is ​​a sealed housing. The right first-stage internal gear ring II72 is fixed to the right housing 5. The upper sun gear 55 connects the right drive shaft 56 and the right first-stage planetary gear II71. The right first-stage planetary gear II71 is fixed to the planetary shaft 70, and the planetary shaft 70 is fixed to the right first-stage planetary carrier II54. The right first-stage planetary gear II71 is connected to the right first-stage sun gear II55 on its inner side and to the right first-stage internal gear ring II72 on its outer side. The right second-stage sun gear II53 connects the right first-stage planetary carrier II54 and the right second-stage planetary gear II74. The right second-stage planetary gear II74 is fixed to the planetary shaft 73, and the planetary shaft 73 is fixed to the right second-stage planetary carrier II52. The right second-stage planetary carrier II52 is fixed to the right first-stage internal gear ring II72. The right second-stage planetary gear II74 is connected to the right second-stage sun gear II53 on its inner side and to the right second-stage internal gear ring II51 on its outer side. The right second-stage internal gear ring II51 is fixed to the right second-stage planetary carrier II52, achieving radial and axial positioning.

[0062] In a preferred embodiment of the reducer, splines are provided on the left secondary internal gear ring I46 and the right secondary internal gear ring I63 for connecting the cutting drum.

[0063] In a preferred embodiment of the reducer, hexagonal connecting blocks are provided on the left secondary internal gear ring II 34 and the right secondary internal gear ring II 51 for connecting the cutting drum; the spline of the left secondary internal gear ring I 46 and the hexagonal connecting block of the left secondary internal gear ring II 34 have corresponding positional relationships; the spline of the right secondary internal gear ring I 63 and the hexagonal connecting block of the right secondary internal gear ring II 51 have corresponding positional relationships.

[0064] In a preferred embodiment of the reducer, the left high-speed end gearbox 3 and the right high-speed end gearbox 4 have the same speed ratio, which is: four-axis gear: one-axis gear = 1.2:1.

[0065] In a preferred embodiment of the reducer, the left bevel gearbox 12 and the right bevel gearbox 8 have the same speed ratio, which is: driven bevel gear: driving bevel gear 2.93:1.

[0066] In a preferred embodiment of the reducer, the left two-stage planetary gearbox I13, the left two-stage planetary gearbox II11, the right two-stage planetary gearbox I7, and the right two-stage planetary gearbox II9 have the same speed ratio. The planetary gears are arranged in an odd number, with a speed ratio of 5 for a planetary gear train consisting of 3 planetary gears, a sun gear, and an internal gear ring. The planetary gear train is also arranged in an odd number, with a speed ratio of 3.17 for a fixed-axis gear train consisting of 5 planetary gears, a sun gear, and an internal gear ring.

[0067] A cutting roller mechanism includes the reducer described in any of the above claims, wherein the left secondary internal gear ring I 46 is connected to a left cutting roller, the right secondary internal gear ring I 63 is connected to a right cutting roller, and an intermediate cutting roller is connected between the left secondary internal gear ring II 34 and the right secondary internal gear ring II 51.

[0068] Furthermore, the left secondary internal gear ring I46 and the left cutting roller, and the right secondary internal gear ring I63 and the right cutting roller are all connected by splines, and the left secondary internal gear ring II34 and the right secondary internal gear ring II51 are both connected to the intermediate cutting roller by hexagonal connecting blocks.

[0069] Furthermore, both the left and right bevel gearboxes 12 are equipped with cutting blocks 6 and cutting covers 14 on their outer peripheries. The cutting blocks 6 and cutting covers 14 are used in areas that are impacted or loosened during the cutting process of the cutting drum, making drum cutting impossible. They need to possess high strength, hardness, wear resistance, and resistance to detachment. Because the reducer is subjected to strong vibration and impact loads during the cutting process, the covers of each gearbox need to be securely installed, and reliable anti-loosening measures must be adopted for internal components to prevent malfunctions caused by loose parts.

[0070] An anchor excavator includes the cutting drum mechanism described in any of the above claims, wherein the left primary gear shaft 16 is connected to a left motor, and the right primary gear shaft is connected to a right motor, and the right motor and the left motor operate synchronously and output the same rotational speed.

[0071] Furthermore, the left motor and / or right motor are electric motors or hydraulic motors.

[0072] All aspects not detailed in this invention are conventional technical means known to those skilled in the art.

[0073] The above content shows and describes the basic principles, main features, and beneficial effects of the present invention. The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A speed reducer, characterized in that: It includes a left transmission mechanism and a right transmission mechanism. Both the left and right transmission mechanisms include a parallel shaft gear transmission unit. The parallel shaft gear transmission unit is connected to a bevel gear vertical reversing transmission unit. The bevel gear vertical reversing transmission unit is connected to two planetary transmission units. The two planetary transmission units are symmetrical about the driving bevel gear of the bevel gear vertical reversing transmission unit and have the same speed ratio. The parallel shaft gear transmission units corresponding to the left and right transmission mechanisms, the bevel gear vertical reversing transmission units, and the planetary transmission units are all symmetrical about each other and have the same speed ratio. The left transmission mechanism includes a left housing (1), which includes a left high-speed end gearbox (3) for the parallel shaft gear transmission unit and a left bevel gearbox (12) for the bevel gear vertical reversal transmission unit. The two planetary transmission units of the left transmission mechanism include a left two-stage planetary gearbox I (13) located to the left of the left bevel gearbox (12) and a left two-stage planetary gearbox II (11) located to the right of the left bevel gearbox (12). The right transmission mechanism includes a right housing (5) connected to the left housing (1), which includes a right high-speed end gearbox (4) for the parallel shaft gear transmission unit and a right bevel gearbox (8) for the bevel gear vertical reversal transmission unit. The two planetary transmission units of the right transmission mechanism include a right two-stage planetary gearbox I (7) located to the right of the right bevel gearbox (8) and a right two-stage planetary gearbox II (9) located to the left of the right bevel gearbox (8). The left bevel gearbox (12) is provided with a left driving bevel gear (27), and a left driven bevel gear (28) is connected to one side of the left driving bevel gear (27). The left driven bevel gear (28) is coaxially connected to a left drive shaft (29). The two ends of the left drive shaft (29) are positioned in the left bevel gearbox (12) by bearings. The left end of the left drive shaft (29) is connected to a secondary planetary transmission unit located in the left two-stage planetary gearbox I (13), and the right end is connected to a secondary planetary transmission unit located in the left two-stage planetary gearbox II (11). The secondary planetary transmission unit in the left two-stage planetary gearbox I (13) includes a left first-stage sun gear I (50) coaxially connected to the left transmission shaft (29), a left first-stage internal gear ring I (43) connected to the left bevel gearbox (12), and a left first-stage planet gear I (42) disposed between the left first-stage sun gear I (50) and the left first-stage internal gear ring I (43); the left first-stage planet carrier I (49) of the left first-stage planet gear I (42) is coaxially connected to the left second-stage sun gear I (48), the left first-stage internal gear ring I (43) is fixedly connected to the left second-stage planet carrier I (47), and a left second-stage planet gear I (45) is disposed on the left second-stage planet carrier I (47) between the left second-stage sun gear I (48) and the left second-stage internal gear ring I (46).

2. The speed reducer according to claim 1, characterized in that: The planetary transmission unit is a two-stage planetary transmission unit.

3. The speed reducer according to claim 2, characterized in that: The second-stage planetary transmission unit in the left two-stage planetary gearbox II (11) includes a left first-stage sun gear II (30) coaxially connected to the left transmission shaft (29), a left first-stage internal gear ring II (37) connected to the left bevel gearbox (12), and a left first-stage planet gear II (38) disposed between the left first-stage sun gear II (30) and the left first-stage internal gear ring II (37); the left first-stage planet carrier II (31) of the left first-stage planet gear II (38) is coaxially connected to the left second-stage sun gear II (32), the left first-stage internal gear ring II (37) is fixedly connected to the left second-stage planet carrier II (33), and a left second-stage planet gear II (35) is disposed on the left second-stage planet carrier II (33) between the left second-stage sun gear II (32) and the left second-stage internal gear ring II (34).

4. The speed reducer according to any one of claims 1-3, characterized in that: The right bevel gearbox (8) is provided with a right driving bevel gear (58), and a right driven bevel gear (57) is connected to one side of the right driving bevel gear (58). The right driven bevel gear (57) is coaxially connected to a right drive shaft (56). The two ends of the right drive shaft (56) are positioned in the right bevel gearbox (8) by bearings. The right end of the right drive shaft (56) is connected to a secondary planetary transmission unit located in the right two-stage planetary gearbox I (7), and the right end is connected to a secondary planetary transmission unit located in the right two-stage planetary gearbox II (9).

5. The speed reducer according to claim 4, characterized in that: The second-stage planetary transmission unit in the right two-stage planetary gearbox I (7) includes a right first-stage sun gear I (59) coaxially connected to the right drive shaft (56), a right first-stage internal gear ring I (66) connected to the right bevel gearbox (8), and a right first-stage planetary gear I (67) disposed between the right first-stage sun gear I (59) and the right first-stage internal gear ring I (66); the right first-stage planetary carrier I (60) of the right first-stage planetary gear I (67) is coaxially connected to the right second-stage sun gear I (61), the right first-stage internal gear ring I (66) is fixedly connected to the right second-stage planetary carrier I (62), and a right second-stage planetary gear I (64) is disposed on the right second-stage planetary carrier I (62) between the right second-stage sun gear I (61) and the right second-stage internal gear ring I (63).

6. The speed reducer according to claim 5, characterized in that: The second-stage planetary transmission unit in the right two-stage planetary gearbox II (9) includes a right first-stage sun gear II (55) coaxially connected to the right transmission shaft (56), a right first-stage internal gear ring II (72) connected to the right bevel gearbox (8), and a right first-stage planetary gear II (71) disposed between the right first-stage sun gear II (55) and the right first-stage internal gear ring II (72); the right first-stage planetary carrier II (54) of the right first-stage planetary gear II (71) is coaxially connected to the right second-stage sun gear II (53), the right first-stage internal gear ring II (72) is fixedly connected to the right second-stage planetary carrier II (52), and a right second-stage planetary gear II (74) is disposed on the right second-stage planetary carrier II (52) between the right second-stage sun gear II (53) and the right second-stage internal gear ring II (51).

7. The speed reducer according to any one of claims 1-3 and 5-6, characterized in that: The left high-speed end gearbox (3) is provided with a left first-stage gear shaft (16), a left idler gear I (17), a left idler gear II (18), and a left fourth-axis gear (19) that are connected in sequence. The left fourth-axis gear (19) is connected to the driving bevel gear in the left bevel gearbox (12). The right high-speed end gearbox (4) is provided with a right first-stage gear shaft (21), a right idler gear I (22), a right idler gear II (23), and a right fourth-axis gear (24) that are connected in sequence. The right fourth-axis gear (24) is connected to the driving bevel gear in the right bevel gearbox (8).

8. The speed reducer according to claim 7, characterized in that: The left high-speed end gearbox (3), right high-speed end gearbox (4), left bevel gearbox (12), left two-stage planetary gearbox I (13), left two-stage planetary gearbox II (11), right bevel gearbox (8), right two-stage planetary gearbox I (7), and right two-stage planetary gearbox II (9) are all sealed designs. The connection and rotation of each component are sealed by floating seals, oil seals, and sealing rings. Each gearbox contains mechanical lubricating oil, and the oil level plug ensures the oil quantity. At the same time, an external lubrication pump is used to circulate the lubricating oil through the lubrication oil channel to achieve dynamic thermal balance of each gearbox.

9. The speed reducer according to claim 8, characterized in that: The left double-layer metal high-pressure oil pipe (76) is installed on the left side of the left second-stage planetary carrier I (47) in the left two-stage planetary gearbox I (13), and the right double-layer metal high-pressure oil pipe (75) is installed on the right side of the right second-stage planetary carrier I (62) in the right two-stage planetary gearbox I (7). Both the left double-layer metal high-pressure oil pipe (76) and the right double-layer metal high-pressure oil pipe (75) are sealed by end caps to extend the high-pressure oil passage inside the reducer.

10. A cutting roller mechanism, characterized in that: The reducer includes the reducer described in claim 5 or 6, wherein the left secondary internal gear ring I (46) is connected to a left cutting roller, the right secondary internal gear ring I (63) is connected to a right cutting roller, and an intermediate cutting roller is connected between the left secondary internal gear ring II (34) and the right secondary internal gear ring II (51).

11. A cutting roller mechanism according to claim 10, characterized in that: The left secondary internal gear ring I (46) and the left cutting roller, and the right secondary internal gear ring I (63) and the right cutting roller are all connected by splines. The left secondary internal gear ring II (34) and the right secondary internal gear ring II (51) are both connected to the intermediate cutting roller by hexagonal connecting blocks.

12. A cutting roller mechanism according to claim 10 or 11, characterized in that: Both the left bevel gearbox (12) and the right bevel gearbox (8) are provided with cutting blocks (6) and cutting caps (14) on their outer periphery.

13. A roadheader, characterized in that: The cutting drum mechanism includes any one of claims 10-12, wherein the left primary gear shaft (16) is connected to the left motor, the right primary gear shaft is connected to the right motor, and the right motor and the left motor operate synchronously and output the same speed.

14. The roadheader and anchorer according to claim 13, characterized in that: The left motor and / or right motor are electric motors or hydraulic motors.

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