Transverse shaft type cutting device with built-in excitation mechanism

Abstract

The invention discloses a transverse shaft type cutting device with a built-in excitation mechanism, and belongs to the technical field of structural design of rock-soil tunneling and pavement milling equipment. According to the transverse shaft type cutting device with the built-in excitation mechanism, the drum type cutting device, the driving device, the excitation device and the excitation driving device are arranged, and the two ends of the excitation chamber assembly in the excitation device are connected with the inner wall of the drum type cutting device through bolts, so that torque can be transmitted to the excitation chamber assembly; and then an eccentric block assembly in the vibration excitation device and the vibration excitation driving device drive the eccentric block assembly to rotate to generate centrifugal force, so that the drum-type cutting device generates vibration, the vibration impact composite rock breaking effect is achieved, abrasion of cutting teeth and the cutting surface can be effectively reduced, and the cutting performance of the cutting device is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of rock and soil excavation and road milling equipment structure design, and in particular relates to a transverse axis cutting device with a built-in vibration excitation mechanism. Background Art

[0002] Roadheaders are equipment used in tunneling and mining operations to crush rocks, coal and other minerals. Horizontal-axis cantilever roadheaders, integrated drilling and anchoring machines, road milling machines and other equipment all use similar horizontal-axis cutting devices. Cantilever roadheaders can simultaneously realize functions such as stripping coal and rock, loading and transporting, walking and mobilizing the machine itself, and spray dust removal. They have the characteristics of continuous excavation and no blasting vibration. Compared with full-section roadheaders, cantilever roadheaders are small and flexible, and can be used for tunnels of any support type and cross-sectional shape. They have strong construction adaptability. Cantilever roadheaders have the characteristics of low vibration and low noise. They can effectively replace drilling and blasting construction in areas with restricted blasting, reducing the impact on the environment. However, traditional cantilever roadheaders such as horizontal-axis pick cutting devices have low cutting efficiency under hard rock geological conditions and may even fail to achieve effective rock breaking. Summary of the invention

[0003] The object of the present invention is to provide a transverse axis cutting device with a built-in vibration excitation mechanism, so as to solve the problem of low rock breaking efficiency of the existing transverse axis cutting device with pick teeth.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] The present invention discloses a horizontal axis cutting device with a built-in vibration excitation mechanism, comprising a drum-type cutting device, a driving device, a vibration excitation device and a vibration excitation driving device; the driving device, the vibration excitation device and the vibration excitation driving device are all arranged inside the drum-type cutting device, one end of the driving device is connected to one end of the drum-type cutting device, the output shaft of the driving device is connected to one end of the vibration excitation device; the other end of the vibration excitation device is connected to one end of the vibration excitation driving device; the other end of the vibration excitation driving device is connected to the other end of the cutting device;

[0006] The vibration excitation device comprises a vibration excitation shaft, an eccentric block assembly and a vibration excitation chamber assembly;

[0007] The exciting shaft is arranged in the exciting chamber assembly, one end of the exciting shaft is connected to one end of the exciting chamber assembly, and the other end is connected to the other end of the exciting chamber assembly; the two ends of the exciting chamber assembly are respectively connected to the inner wall bolts of the drum-type cutting device; the eccentric block assembly is arranged on the exciting shaft.

[0008] Furthermore, the driving device comprises a driving motor chamber, a driving motor and a reducer; the driving motor and the reducer are both arranged in the driving motor chamber; the driving motor is bolted to one end of the reducer; the output shaft of the reducer passes through one end of the driving motor chamber and is bolted to one end of the excitation chamber assembly;

[0009] The other end of the driving motor chamber is connected to one end of the drum-type cutting device by bolts of a cover plate I;

[0010] A plurality of shock absorbers I are installed on the end surface of the other end of the driving motor chamber, and the shock absorbers I are fixedly connected to the cover plate I by bolts.

[0011] Further, the excitation chamber assembly includes an excitation assembly end cover I, an excitation chamber shell I, an excitation chamber shell II, an excitation chamber shell III and an excitation assembly end cover II;

[0012] The excitation chamber shell Ⅰ, the excitation chamber shell Ⅱ and the excitation chamber shell Ⅲ are connected in sequence inside the drum-type cutting device, the excitation assembly end cover Ⅰ is connected to the excitation chamber shell Ⅰ, and the excitation assembly end cover Ⅱ is connected to the excitation chamber shell Ⅲ; a bearing seat Ⅰ is arranged between one end of the driving motor chamber and the excitation assembly end cover Ⅰ; one end of the driving motor chamber is bolted to the bearing seat Ⅰ; the bearing seat Ⅰ and the excitation assembly end cover Ⅰ are positioned and installed, and are sealed with a sealing ring; the output of the reducer passes through one end of the driving motor chamber and is arranged in the bearing seat Ⅰ, and is splined with the excitation assembly end cover Ⅰ;

[0013] The vibration assembly end cover II is connected to one end of the vibration driving device;

[0014] The vibration assembly end cover I and the vibration assembly end cover II are respectively connected to the inner wall bolts of the drum-type cutting device.

[0015] Furthermore, one end of the excitation shaft is connected to the end cover I of the excitation assembly, and the other end is connected to the end cover II of the excitation assembly.

[0016] Furthermore, the eccentric block assembly includes eccentric block I, eccentric block II, eccentric block III and eccentric block IV; the eccentric block I, eccentric block II, eccentric block III and eccentric block IV are arranged in sequence and in phase on the excitation shaft; wherein, the eccentric block I is located in the excitation chamber shell I, the eccentric block II and the eccentric block III are arranged in sequence in the excitation chamber shell II, and the eccentric block IV is arranged in the excitation chamber shell III.

[0017] Furthermore, the eccentric block I and the eccentric block IV are both connected by keys to achieve circumferential fixation with the exciting shaft, and are positioned axially by a sleeve.

[0018] Furthermore, the eccentric block II and the eccentric block III are connected to the exciting shaft in the circumferential direction by keys and are fastened in the axial direction by bolts.

[0019] Furthermore, the excitation drive device includes an excitation motor and an excitation motor chamber; the excitation motor is arranged in the excitation motor chamber; the output shaft of the excitation motor is connected to the other end of the excitation shaft through a coupling sleeve, and the coupling sleeve is connected to the end cover II of the excitation assembly; one end of the excitation motor chamber is connected to the other end of the cutting device through a cover plate II, and the other end of the excitation motor chamber is connected to the end cover II of the excitation assembly.

[0020] Furthermore, a bearing seat II is arranged between the other end of the vibration motor chamber and the end cover II of the vibration assembly; the other end of the vibration motor chamber is bolted to one end face of the bearing seat II, and the other end face of the bearing seat II is positioned and installed with a bearing between it and the end cover II of the vibration assembly.

[0021] Furthermore, a plurality of shock absorbers II are arranged on the cross section of one end of the excitation motor room; the shock absorbers II are fixedly connected to the cover plate II by bolts.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention discloses a transverse axis cutting device with a built-in vibration exciting mechanism. By arranging a drum-type cutting device, a driving device, a vibration exciting device and a vibration exciting driving device, the two ends of a vibration exciting chamber assembly in the vibration exciting device are respectively connected with the inner wall bolts of the drum-type cutting device, so that the torque can be transmitted to the vibration exciting chamber assembly, thereby realizing the rotation of the cutting device. Subsequently, through the eccentric block assembly in the vibration exciting device, the vibration exciting driving device drives the eccentric block assembly to rotate to generate centrifugal force, so that the drum-type cutting device vibrates, thereby realizing the crushing of rock materials under the combined action of vibration and impact, and can effectively improve the cutting performance of the cutting device.

[0024] Furthermore, by designing the output shaft of the reducer and the end cover II of the exciting shaft assembly as internal and external splines to drive the exciting chamber assembly, and at the same time the exciting chamber assembly is bolted to the drum-type cutting device, the torque can be transmitted to the exciting chamber assembly, thereby realizing the rotation of the cutting device; by arranging four eccentric blocks with the same phase on the exciting shaft, the exciting motor drives the eccentric blocks to rotate to generate centrifugal force, so that the cutting device vibrates. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a cross-sectional schematic diagram of a horizontal axis cutting device with a built-in vibration excitation mechanism according to the present invention;

[0026] Among them: 1-drum cutting device; 2-cover plate Ⅰ; 3-shock absorber Ⅰ; 4-drive motor room; 5-drive motor; 6-reducer; 7-bearing seat Ⅰ; 8-excitation assembly end cover Ⅰ; 9-eccentric block Ⅰ; 10-excitation chamber shell Ⅰ; 11-eccentric block Ⅱ; 12-excitation chamber shell Ⅱ; 13-excitation shaft; 14-eccentric block Ⅲ; 15-eccentric block Ⅳ; 16-excitation chamber shell Ⅲ; 17-excitation assembly end cover Ⅱ; 18-bearing seat Ⅱ; 19-coupling sleeve; 20-excitation motor; 21-excitation motor room; 22-shock absorber Ⅱ; 23-cover plate Ⅱ. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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 should fall within the scope of protection of the present invention.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] The present invention discloses a transverse axis cutting device with a built-in excitation mechanism, comprising a drum cutting device 1, a driving device, an excitation device and an excitation driving device; wherein the drum cutting device 1 is composed of a cylindrical drum and a plurality of cutting teeth arranged in a spiral shape on the drum surface; the excitation device comprises an excitation shaft 13, an eccentric block assembly and an excitation chamber assembly; the eccentric block assembly comprises an eccentric block I9, an eccentric block II11, an eccentric block III14 and an eccentric block IV15; the excitation chamber assembly comprises an excitation assembly end cover I8, an excitation chamber shell I10, an excitation chamber shell II12, an excitation chamber shell III16 and an excitation assembly end cover II17; the driving device comprises a driving motor chamber 4, a driving motor 5 and a reducer 6; the excitation driving device comprises an excitation motor 20 and an excitation motor chamber 21, wherein the excitation assembly end cover I8 and the excitation assembly end cover II17 are respectively connected with the inner wall of the drum cutting device 1 by bolts.

[0030] The drive motor 5 and the reducer 6 are both installed in the drive motor chamber 4, and the drive motor 5 is bolted to one end of the reducer 6; a plurality of shock absorbers Ⅰ3 are installed in the circumferential direction of one end of the drive motor chamber 4, and the other end is bolted to the end face of the bearing seat Ⅰ7, so as to position and install the bearing between the bearing seat Ⅰ7 and the end cover Ⅰ8 of the excitation assembly, and finally sealed with a sealing ring.

[0031] The exciting shaft 13 is driven by the exciting motor 20 through the coupling sleeve 19, and the eccentric block I9, the eccentric block II11, the eccentric block III14, and the eccentric block IV15 are symmetrically installed on the exciting shaft 13 from left to right. The exciting assembly end cover I8, the exciting chamber shell I10, the exciting chamber shell II12, the exciting chamber shell III16, and the exciting assembly end cover II17 are connected by bolts to form the exciting chamber assembly, and the eccentric block is sealed therein, which has the advantage of easy installation and disassembly.

[0032] The output shaft of the reducer 6 is splined with the end cover Ⅰ8 of the vibration assembly, and the left vibration assembly end cover and the right vibration assembly end cover in the vibration chamber assembly are bolted to the drum-type cutting device 1, so that the power of the drive motor 5 is transmitted to the drum-type cutting device 1 through the vibration chamber assembly to realize the rotation of the drum-type cutting device 1.

[0033] The eccentric block I9 and the eccentric block IV15 are connected by keys to achieve circumferential fixation of the eccentric block and the exciting shaft 13, are axially positioned by a sleeve, and are supported at both ends by a pair of bearings, which are pressed against the baffle.

[0034] The eccentric block II11 and the eccentric block III14 are located in the excitation chamber shell II12, connected circumferentially with keys and fastened axially with bolts. The eccentric blocks can be freely disassembled and adjusted for easy replacement. Both ends are supported by a pair of bearings, and baffles welded to the middle excitation chamber shell are designed at both ends to tighten the bearings and support the excitation shaft 13 to avoid excessive deformation.

[0035] The vibration motor 20 is installed in the vibration motor room 21. A plurality of shock absorbers Ⅱ22 are installed in the circumferential direction at one end of the vibration motor room 21. The shock absorber Ⅱ22 is fixedly connected to the cover plate Ⅱ23 by bolts, and the other end is connected to the end face of the bearing seat Ⅱ18 by bolts. The bearing is positioned and installed between the bearing seat Ⅱ18 and the end cover Ⅱ17 of the vibration assembly, and finally sealed with a sealing ring.

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0037] See also Figure 1 As shown, the present invention discloses a horizontal axis cutting device with a built-in vibration excitation mechanism, including a driving motor chamber 4, a driving motor 5, a reducer 6, a drum-type cutting device 1, a vibration excitation device, a vibration excitation motor 20, and a vibration excitation motor chamber 21;

[0038] The drive motor 5 and the reducer 6 are both installed in the drive motor chamber 4, and the drive motor 5 is bolted to one end of the reducer 6; the drum-type cutting device 1 is composed of a cylindrical drum and a plurality of cutting teeth arranged in a spiral shape on the drum surface;

[0039] Among them, a plurality of shock absorbers Ⅰ3 are installed in the circumferential direction of one end of the driving motor chamber 4, and the other end is connected with the end face of the bearing seat Ⅰ7 by bolts, so as to realize the positioning and installation of the bearing between the bearing seat Ⅰ7 and the end cover Ⅰ8 of the excitation assembly, and finally sealed by a sealing ring;

[0040] The exciting device mainly includes an exciting assembly end cover Ⅰ8, an exciting chamber shell Ⅰ10, an exciting chamber shell Ⅱ12, an exciting chamber shell Ⅲ16, an exciting assembly end cover Ⅱ17, an eccentric block Ⅰ9, an eccentric block Ⅱ11, an eccentric block Ⅲ14, an eccentric block Ⅳ15, and an exciting shaft 13; considering that the eccentric block assembly on the exciting shaft 13 should be easy to install and adjust, the eccentric block assembly is connected by a key, and is axially fixed with bolts and sleeves; considering that the exciting force and amplitude of the vibration should be large enough, the installation phase of the eccentric block assembly should be kept consistent, so that the drum-type cutting device 1 can instantly produce a great impact on the rock, thereby achieving efficient destruction of the hard rock;

[0041] The exciting shaft 13 is driven by the exciting motor 20 through the coupling sleeve 19, and the eccentric block I9, the eccentric block II11, the eccentric block III16, and the eccentric block IV15 are symmetrically installed on the exciting shaft 13 from left to right.

[0042] Among them, the end cover Ⅰ8 of the excitation assembly, the excitation chamber shell Ⅰ10, the excitation chamber shell Ⅱ12, the excitation chamber shell Ⅲ16, and the end cover Ⅱ17 of the excitation assembly are connected by bolts to form an excitation chamber assembly, and the formed cavity seals the eccentric block therein, which has the advantage of being easy to install and disassemble;

[0043] Among them, the output shaft of the reducer 6 is splined with the end cover Ⅰ8 of the excitation assembly, and the end cover Ⅰ8 of the excitation chamber assembly and the end cover Ⅱ17 of the excitation assembly are connected with the drum-type cutting device 1 by bolts, so that the power of the drive motor 5 is transmitted to the drum-type cutting device 1 through the excitation chamber assembly, so as to realize the rotation of the drum-type cutting device 1;

[0044] Among them, the eccentric block I9 and the eccentric block IV15 are both connected with keys and fixed to the exciting shaft 13 in the circumferential direction, compressed by a sleeve in the axial direction, and supported by a pair of bearings at both ends; the eccentric block II11 and the eccentric block III14 are located in the exciting chamber housing II12, connected with keys in the circumferential direction, fastened with bolts in the axial direction, supported by a pair of bearings, and baffles fixed to the exciting chamber housing II12 are designed at both ends to compress the bearings and support the exciting shaft 13 to avoid excessive deformation;

[0045] The vibration motor 20 is installed in the vibration motor room 21. A plurality of shock absorbers Ⅱ22 are installed in the circumferential direction at one end of the vibration motor room 21. The other end is connected with the end face of the bearing seat Ⅱ18 by bolts. The bearing between the bearing seat Ⅱ18 and the end cover Ⅱ17 of the vibration assembly is positioned and installed, and finally sealed with a sealing ring.

[0046] Among them, the functions of the shock absorber Ⅰ3 and the shock absorber Ⅱ22 are mainly to connect the drive motor room 4 and the cover plate Ⅰ2, the exciting motor room 21 and the cover plate Ⅱ23 respectively, and the cover plate Ⅰ2 and the cover plate Ⅱ23 are fixedly connected to the frame, thereby reducing the influence of the internal vibration of the drum-type cutting device 1 on the frame.

[0047] The above contents are only for explaining the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A horizontal axis cutting device with a built-in vibration mechanism, characterized in that: The invention comprises a drum-type cutting device (1), a driving device, a vibration device and a vibration driving device; the driving device, the vibration device and the vibration driving device are all arranged inside the drum-type cutting device (1); one end of the driving device is connected to one end of the drum-type cutting device (1); the output shaft of the driving device is connected to one end of the vibration driving device; the other end of the vibration driving device is connected to one end of the vibration driving device; and the other end of the vibration driving device is connected to the other end of the cutting device (1); The vibration excitation device comprises a vibration excitation shaft (13), an eccentric block assembly and a vibration excitation chamber assembly; The exciting shaft (13) is arranged in the exciting chamber assembly, one end of the exciting shaft (13) is connected to one end of the exciting chamber assembly, and the other end is connected to the other end of the exciting chamber assembly; the two ends of the exciting chamber assembly are respectively connected to the inner wall of the drum-type cutting device (1) by bolts; the eccentric block assembly is arranged on the exciting shaft (13).

2. A horizontal axis cutting device with a built-in vibration excitation mechanism according to claim 1, characterized in that: The driving device comprises a driving motor chamber (4), a driving motor (5) and a reducer (6); the driving motor (5) and the reducer (6) are both arranged in the driving motor chamber (4); the driving motor (5) is bolted to one end of the reducer (6); the output shaft of the reducer (6) passes through one end of the driving motor chamber (4) and is bolted to one end of the excitation chamber assembly; The other end of the driving motor chamber (4) is bolted to one end of the drum-type cutting device (1) via a cover plate I (2); A plurality of shock absorbers I (3) are installed on the end surface of the other end of the driving motor chamber (4), and the shock absorbers I (3) are fixedly connected to the cover plate I (2) by bolts.

3. A horizontal axis cutting device with a built-in vibration excitation mechanism according to claim 2, characterized in that: The excitation chamber assembly comprises an excitation assembly end cover I (8), an excitation chamber shell I (10), an excitation chamber shell II (12), an excitation chamber shell III (16) and an excitation assembly end cover II (17); The excitation chamber shell I (10), the excitation chamber shell II (12) and the excitation chamber shell III (16) are connected in sequence inside the drum-type cutting device (1); the excitation assembly end cover I (8) is connected to the excitation chamber shell I (10), and the excitation assembly end cover II (17) is connected to the excitation chamber shell III (16); a bearing seat I (7) is arranged between one end of the drive motor chamber (4) and the excitation assembly end cover I (8); one end of the drive motor chamber (4) is bolted to the bearing seat I (7); the bearing seat I (7) and the excitation assembly end cover I (8) are positioned and installed, and are sealed with a sealing ring; the output of the reducer (6) passes through one end of the drive motor chamber (4) and is arranged in the bearing seat I (7), and is splined with the excitation assembly end cover I (8); The vibration assembly end cover II (17) is connected to one end of the vibration driving device; The vibration assembly end cover I (8) and the vibration assembly end cover II (17) are respectively connected to the inner wall of the drum-type cutting device (1) by bolts.

4. A horizontal axis cutting device with a built-in vibration excitation mechanism according to claim 3, characterized in that: One end of the excitation shaft (13) is connected to the excitation assembly end cover I (8), and the other end is connected to the excitation assembly end cover II (17).

5. The horizontal axis cutting device with built-in vibration excitation mechanism according to claim 3, characterized in that: The eccentric block assembly comprises an eccentric block I (9), an eccentric block II (11), an eccentric block III (14) and an eccentric block IV (15); the eccentric block I (9), the eccentric block II (11), the eccentric block III (14) and the eccentric block IV (15) are sequentially arranged on the excitation shaft (13) in the same phase; wherein the eccentric block I (9) is located in the excitation chamber shell I (10), the eccentric block II (11) and the eccentric block III (14) are sequentially arranged in the excitation chamber shell II (12), and the eccentric block IV (15) is arranged in the excitation chamber shell III (16).

6. A horizontal axis cutting device with a built-in vibration excitation mechanism according to claim 5, characterized in that: The eccentric block I (9) and the eccentric block IV (15) are both connected by keys to achieve circumferential fixation with the exciting shaft (13), and are positioned axially by sleeves.

7. The horizontal axis cutting device with built-in vibration excitation mechanism according to claim 5, characterized in that: The eccentric block II (11) and the eccentric block III (14) are connected to the exciting shaft (13) in the circumferential direction by keys and are fastened in the axial direction by bolts.

8. The horizontal axis cutting device with built-in vibration excitation mechanism according to claim 5, characterized in that: The excitation drive device comprises an excitation motor (20) and an excitation motor chamber (21); the excitation motor (20) is arranged in the excitation motor chamber (21); the output shaft of the excitation motor (20) is connected to the other end of the excitation shaft (13) through a coupling sleeve (19), and the coupling sleeve (19) is connected to an end cover II (17) of an excitation assembly; one end of the excitation motor chamber (21) is connected to the other end of the cutting device (1) through a cover plate II (23), and the other end of the excitation motor chamber (21) is connected to the end cover II (17) of the excitation assembly.

9. A horizontal axis cutting device with a built-in vibration excitation mechanism according to claim 8, characterized in that: A bearing seat II (18) is arranged between the other end of the vibration motor chamber (21) and the end cover II (17) of the vibration assembly; the other end of the vibration motor chamber (21) is bolted to one end face of the bearing seat II (18), and a bearing is positioned and installed between the other end face of the bearing seat II (18) and the end cover II (17) of the vibration assembly.

10. The horizontal axis cutting device with built-in vibration excitation mechanism according to claim 8, characterized in that: A plurality of shock absorbers II (22) are arranged on the cross section of one end of the vibration motor chamber (21); the shock absorbers II (22) are fixedly connected to the cover plate II (23) by bolts.

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