Transverse shaft type cutting device with built-in excitation mechanism

Abstract

The utility model 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 shock excitation mechanism, the drum type cutting device, the driving device, the shock excitation device and the shock excitation driving device are arranged, and the two ends of the shock excitation chamber assembly in the shock excitation device are respectively connected with the inner wall of the drum type cutting device through bolts, so that torque can be transmitted to the shock 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 utility model belongs to the technical field of the structural design of rock tunneling and pavement milling equipment, and particularly relates to a horizontal cutting device with an internal vibration excitation mechanism. Background Art

[0002] A roadheader is a device used for tunnel and mining operations, and is used to break rocks, coal and other minerals. Equipment such as a horizontal cantilever roadheader, a roadheader-anchoring machine, and a pavement milling machine all adopt a similar horizontal cutting device. The cantilever roadheader can simultaneously realize functions such as stripping coal and rock, loading and transporting out, the walking and mobilization of the machine itself, and spray dust removal. It has the characteristics of continuous excavation and no blasting vibration. Compared with a full-face roadheader, the cantilever roadheader is small and flexible, can be applied to tunnels of any support type and cross-sectional shape, has strong construction adaptability, and has the characteristics of low vibration and low noise. It can effectively replace the drill-blasting method construction in restricted blasting areas, reducing the impact on the environment. However, traditional cantilever roadheaders such as horizontal pick cutting devices have low cutting efficiency or even cannot effectively break rocks under hard rock geological conditions. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a horizontal cutting device with an internal vibration excitation mechanism, which is used to solve the problem of low rock-breaking efficiency of the existing horizontal pick cutting device.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model discloses a horizontal cutting device with an internal vibration excitation mechanism, which includes 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, and 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 includes a vibration excitation shaft, an eccentric block assembly, and a vibration excitation chamber assembly;

[0007] The vibration excitation shaft is arranged inside the vibration excitation chamber assembly. One end of the vibration excitation shaft is connected to one end of the vibration excitation chamber assembly, and the other end is connected to the other end of the vibration excitation chamber assembly; both ends of the vibration excitation chamber assembly are bolted to the inner wall of the drum-type cutting device; the eccentric block assembly is arranged on the vibration excitation shaft.

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

[0009] One end of the driving motor chamber is bolted to one end of the drum cutting device through Cover Plate I;

[0010] A number of shock absorbers I are installed on the end face of the other end of the driving motor chamber, and the shock absorbers I are fixedly connected to Cover Plate I through bolts.

[0011] Further, the vibration chamber assembly includes Vibration Assembly End Cover I, Vibration Chamber Housing I, Vibration Chamber Housing II, Vibration Chamber Housing III, and Vibration Assembly End Cover II;

[0012] Vibration Chamber Housing I, Vibration Chamber Housing II, and Vibration Chamber Housing III are sequentially connected inside the drum cutting device. Vibration Assembly End Cover I is connected to Vibration Chamber Housing I, and Vibration Assembly End Cover II is connected to Vibration Chamber Housing III; there is a bearing block I between one end of the driving motor chamber and Vibration Assembly End Cover I; one end of the driving motor chamber is bolted to the bearing block I; the bearing block I is installed with bearing positioning with Vibration Assembly End Cover I and sealed with a sealing ring; the output of the speed reducer passes through one end of the driving motor chamber and is arranged inside the bearing block I and is in spline fit with Vibration Assembly End Cover I;

[0013] Vibration Assembly End Cover II is connected to one end of the vibration driving device;

[0014] Vibration Assembly End Cover I and Vibration Assembly End Cover II are respectively bolted to the inner wall of the drum cutting device.

[0015] Further, one end of the vibration shaft is connected to Vibration Assembly End Cover I, and the other end is connected to Vibration Assembly End Cover II.

[0016] Further, the eccentric block assembly includes Eccentric Block I, Eccentric Block II, Eccentric Block III, and Eccentric Block IV; Eccentric Block I, Eccentric Block II, Eccentric Block III, and Eccentric Block IV are arranged on the vibration shaft in the same phase in sequence; among them, Eccentric Block I is located in Vibration Chamber Housing I, Eccentric Block II and Eccentric Block III are sequentially arranged in Vibration Chamber Housing II, and Eccentric Block IV is arranged in Vibration Chamber Housing III.

[0017] Further, both Eccentric Block I and Eccentric Block IV are fixed circumferentially to the vibration shaft by key connection and axially positioned by a sleeve.

[0018] Further, Eccentric Block II and Eccentric Block III are circumferentially connected to the vibration shaft by key connection and axially fastened by bolts.

[0019] Furthermore, the excitation driving 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 excitation assembly end cover II; 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 excitation assembly end cover II.

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

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

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] The utility model discloses a horizontal-axis cutting device with an internal excitation mechanism. By setting a drum-type cutting device, a driving device, an excitation device and an excitation driving device, both ends of the excitation chamber assembly in the excitation device are bolted to the inner wall of the drum-type cutting device, so as to realize the transmission of torque to the excitation chamber assembly, thereby realizing the rotation of the cutting device. Subsequently, through the eccentric block assembly in the excitation device, the excitation driving device drives the eccentric block assembly to rotate to generate a centrifugal force, so that the drum-type cutting device generates vibration, realizing the crushing of rock materials under the combined action of vibration and impact, and effectively improving the cutting performance of the cutting device.

[0024] Furthermore, by designing the output shaft of the reducer and the excitation shaft assembly end cover II to be in internal and external spline fit to drive the excitation chamber assembly, and at the same time the excitation chamber assembly is bolted to the drum-type cutting device, the transmission of torque to the excitation chamber assembly can be realized, thereby realizing the rotation of the cutting device; by arranging 4 eccentric blocks with the same phase on the excitation shaft, the excitation motor drives the eccentric blocks to rotate to generate a centrifugal force, so that the cutting device generates vibration. Description of the Drawings

[0025] Figure 1 It is a schematic cross-sectional view of the horizontal-axis cutting device with an internal excitation mechanism of the utility model;

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

[0027] In order to enable those skilled in the art of the present technology to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] It should be noted that the terms "first", "second", etc. in the description and claims of the present utility model and the above-mentioned accompanying drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0029] The following makes a further detailed description of the present utility model in conjunction with the accompanying drawings:

[0030] The utility model discloses a horizontal cutting device with an internal vibration excitation mechanism, which comprises a drum-type cutting device 1, a driving device, a vibration excitation device and a vibration excitation driving device; wherein, the drum-type cutting device 1 is composed of a cylindrical drum and a plurality of cutting tools arranged in a spiral shape on the drum surface; the vibration excitation device comprises a vibration excitation shaft 13, an eccentric block assembly and a vibration excitation chamber assembly; 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 vibration excitation chamber assembly comprises a vibration excitation assembly end cover I 8, a vibration excitation chamber housing I 10, a vibration excitation chamber housing II 12, a vibration excitation chamber housing III 16 and a vibration excitation assembly end cover II 17; the driving device comprises a driving motor chamber 4, a driving motor 5 and a speed reducer 6; the vibration excitation driving device comprises a vibration excitation motor 20 and a vibration excitation motor chamber 21, wherein, the vibration excitation assembly end cover I 8 and the vibration excitation assembly end cover II 17 are respectively bolted to the inner wall of the drum-type cutting device 1.

[0031] The driving motor 5 and the speed reducer 6 are both installed in the driving motor chamber 4, and the driving motor 5 is bolted to one end of the speed reducer 6; a plurality of shock absorbers I 3 are installed in the circumferential direction at one end of the driving motor chamber 4, and the other end is bolted to the end face of the bearing seat I 7, and the bearing between the bearing seat I 7 and the vibration excitation assembly end cover I 8 is positioned and installed, and finally sealed with a sealing ring.

[0032] The vibration excitation shaft 13 is driven by the vibration excitation motor 20 through a coupling sleeve 19, the eccentric block I 9, the eccentric block II 11, the eccentric block III 14 and the eccentric block IV 15 are symmetrically installed on the vibration excitation shaft 13 in sequence from left to right, and the vibration excitation assembly end cover I 8, the vibration excitation chamber housing I 10, the vibration excitation chamber housing II 12, the vibration excitation chamber housing III 16 and the vibration excitation assembly end cover II 17 are bolted to form a vibration excitation chamber assembly, and the eccentric blocks are sealed therein, which has the advantages of being convenient for installation and disassembly.

[0033] The output shaft of the speed reducer 6 is in spline fit with the vibration excitation assembly end cover I 8, and the left and right vibration excitation assembly end covers in the vibration excitation chamber assembly are bolted to the drum-type cutting device 1, so that the power of the driving motor 5 is transmitted to the drum-type cutting device 1 through the vibration excitation chamber assembly to realize the rotation of the drum-type cutting device 1.

[0034] Both the eccentric block I 9 and the eccentric block IV 15 are connected by keys to realize the circumferential fixation of the eccentric blocks and the vibration excitation shaft 13, axially positioned by a sleeve, and supported by a pair of bearings at both ends, and the bearings are pressed on the baffle.

[0035] The eccentric block II 11 and the eccentric block III 14 are located in the vibration excitation chamber housing II 12, connected by keys in the circumferential direction and fastened by bolts axially. The eccentric blocks can be freely disassembled and adjusted for easy replacement; supported by a pair of bearings at both ends, and designed with baffles welded to the middle vibration excitation chamber housing at both ends to press the bearings and support the vibration excitation shaft 13 to avoid excessive deformation.

[0036] The excitation motor 20 is installed inside the excitation motor chamber 21. A plurality of shock absorbers II 22 are installed in the circumferential direction at one end of the excitation motor chamber 21. The shock absorbers II 22 and the cover plate II 23 are fixedly connected by bolts. The other end is bolted to the end face of the bearing block II 18 to position and install the bearing between the bearing block II 18 and the excitation assembly end cover II 17, and finally sealed with a sealing ring.

[0037] See Figure 1 As shown, the utility model discloses a horizontal-axis cutting device with an internal excitation mechanism, including a drive motor chamber 4, a drive motor 5, a speed reducer 6, a drum-type cutting device 1, an excitation device, an excitation motor 20, and an excitation motor chamber 21;

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

[0039] Among them, a plurality of shock absorbers I 3 are installed in the circumferential direction at one end of the drive motor chamber 4, and the other end is bolted to the end face of the bearing block I 7 to position and install the bearing between the bearing block I 7 and the excitation assembly end cover I 8, and finally sealed with a sealing ring;

[0040] Among them, the excitation device mainly includes an excitation assembly end cover I 8, an excitation chamber housing I 10, an excitation chamber housing II 12, an excitation chamber housing III 16, an excitation assembly end cover II 17, an eccentric block I 9, an eccentric block II 11, an eccentric block III 14, an eccentric block IV 15, and an excitation shaft 13; considering that it is convenient to install and adjust the eccentric block assembly on the excitation shaft 13, the eccentric block assembly is connected by a key and axially fixed with bolts and sleeves at the same time; considering that the excitation force and amplitude generated by the vibration should be large enough to keep the installation phase of the eccentric block assembly consistent, so that the drum-type cutting device 1 generates a great impact on the rock instantly to achieve efficient destruction of hard rock;

[0041] Among them, the excitation shaft 13 is driven by the excitation motor 20 through a coupling sleeve 19, and the eccentric blocks I 9, II 11, III 16, and IV 15 are symmetrically installed on the excitation shaft 13 from left to right in sequence;

[0042] Among them, the excitation assembly end cover I 8, the excitation chamber housing I 10, the excitation chamber housing II 12, the excitation chamber housing III 16, and the excitation assembly end cover II 17 are bolted together to form an excitation chamber assembly, and the formed cavity seals the eccentric blocks, which has the advantage of being convenient for installation and disassembly;

[0043] Among them, the output shaft of the speed reducer 6 is in spline fit with the end cover I 8 of the excitation assembly. The end cover I 8 and the end cover II 17 of the excitation assembly of the excitation chamber assembly are bolted to the drum cutting device 1, so as to transmit the power of the drive motor 5 to the drum cutting device 1 through the excitation chamber assembly, and realize the rotation of the drum cutting device 1;

[0044] Among them, both the eccentric block I 9 and the eccentric block IV 15 are circumferentially fixed to the excitation shaft 13 by key connection, axially pressed by a sleeve, and supported by a pair of bearings at both ends; the eccentric block II 11 and the eccentric block III 14 are located in the excitation chamber housing II 12, circumferentially connected by key connection, axially fastened by bolts, supported by a pair of bearings, and baffles for fixing the excitation chamber housing II 12 are designed at both ends to press the bearings, and at the same time support the excitation shaft 13 to avoid excessive deformation;

[0045] Among them, the excitation motor 20 is installed in the excitation motor chamber 21. A plurality of shock absorbers II 22 are installed in the circumferential direction at one end of the excitation motor chamber 21, and the other end is bolted to the end face of the bearing seat II 18 to position and install the bearing between the bearing seat II 18 and the end cover II 17 of the excitation assembly, and finally sealed with a sealing ring;

[0046] Among them, the main functions of the shock absorber I 3 and the shock absorber II 22 are to connect the drive motor chamber 4 and the cover plate I 2, and the excitation motor chamber 21 and the cover plate II 23 respectively. The cover plate I 2 and the cover plate II 23 are also fixedly connected to the frame, so as to weaken the influence of the vibration inside the drum cutting device 1 on the frame.

[0047] The above content is only to illustrate the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby. Any modification made on the basis of the technical solution according to the technical idea proposed by the present invention falls within the protection scope of the claims of the present invention.

Claims

1. A horizontal cutting device with a built-in excitation mechanism, characterized in that, It includes a drum cutting device (1), 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 cutting device (1), one end of the driving device is connected to one end of the drum cutting device (1), and 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 (1); The vibration excitation device includes a vibration excitation shaft (13), an eccentric block assembly, and a vibration excitation chamber assembly; The vibration excitation shaft (13) is arranged inside the vibration excitation chamber assembly, one end of the vibration excitation shaft (13) is connected to one end of the vibration excitation chamber assembly, and the other end is connected to the other end of the vibration excitation chamber assembly; both ends of the vibration excitation chamber assembly are bolted to the inner wall of the drum cutting device (1); the eccentric block assembly is arranged on the vibration excitation shaft (13).

2. The horizontal cutting device with an internal excitation mechanism according to claim 1, characterized in that, The driving device includes a driving motor chamber (4), a driving motor (5), and a speed reducer (6); the driving motor (5) and the speed reducer (6) are both arranged inside the driving motor chamber (4); the driving motor (5) is bolted to one end of the speed reducer (6); the output shaft of the speed reducer (6) passes through one end of the driving motor chamber (4) and is bolted to one end of the vibration excitation chamber assembly; There is a bolt connection between the other end of the driving motor chamber (4) and one end of the drum cutting device (1) through a cover plate I (2); A number of shock absorbers I (3) are installed on the end face 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) through bolts.

3. The cross - shaft cutting device with an internal excitation mechanism according to claim 2, characterized in that, The vibration excitation chamber assembly includes a vibration excitation assembly end cover I (8), a vibration excitation chamber housing I (10), a vibration excitation chamber housing II (12), a vibration excitation chamber housing III (16), and a vibration excitation assembly end cover II (17); The vibration excitation chamber housing I (10), the vibration excitation chamber housing II (12), and the vibration excitation chamber housing III (16) are sequentially connected inside the drum cutting device (1), the vibration excitation assembly end cover I (8) is connected to the vibration excitation chamber housing I (10), and the vibration excitation assembly end cover II (17) is connected to the vibration excitation chamber housing III (16); there is a bearing seat I (7) between one end of the driving motor chamber (4) and the vibration excitation assembly end cover I (8); one end of the driving motor chamber (4) is bolted to the bearing seat I (7); the bearing seat I (7) is installed with bearing positioning and sealed with a sealing ring to the vibration excitation assembly end cover I (8); the output of the speed reducer (6) passes through one end of the driving motor chamber (4) and is arranged inside the bearing seat I (7), and is in spline fit with the vibration excitation assembly end cover I (8); The vibration excitation assembly end cover II (17) is connected to one end of the vibration excitation driving device; The vibration excitation assembly end cover I (8) and the vibration excitation assembly end cover II (17) are respectively bolted to the inner wall of the drum cutting device (1).

4. The horizontal cutting device with an internal excitation mechanism according to claim 3, characterized in that, One end of the vibration excitation shaft (13) is connected to the vibration excitation assembly end cover I (8), and the other end is connected to the vibration excitation assembly end cover II (17).

5. The horizontal cutting device with an internal excitation mechanism according to claim 3, characterized in that, The eccentric block assembly includes eccentric block I (9), eccentric block II (11), eccentric block III (14) and eccentric block IV (15); the eccentric block I (9), eccentric block II (11), eccentric block III (14), and eccentric block IV (15) are arranged in the same phase in sequence on the excitation shaft (13); among them, the eccentric block I (9) is located in the excitation chamber housing I (10), the eccentric block II (11) and the eccentric block III (14) are arranged in the excitation chamber housing II (12) in sequence, and the eccentric block IV (15) is arranged in the excitation chamber housing III (16).

6. The cross - shaft cutting device with an internal excitation mechanism according to claim 5, characterized in that, Both the eccentric block I (9) and the eccentric block IV (15) are circumferentially fixed to the excitation shaft (13) by key connection and axially positioned by a sleeve.

7. The horizontal cutting device with an internal excitation mechanism according to claim 5, characterized in that, The eccentric block II (11) and the eccentric block III (14) are circumferentially key-connected to the excitation shaft (13) and axially fastened by bolts.

8. The horizontal cutting device with an internal excitation mechanism according to claim 5, characterized in that The excitation drive device includes 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 the excitation assembly end cover II (17); 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 excitation assembly end cover II (17).

9. The horizontal cutting device with an internal excitation mechanism according to claim 8, characterized in that, A bearing housing II (18) is arranged between the other end of the excitation motor chamber (21) and the excitation assembly end cover II (17); the other end of the excitation motor chamber (21) is bolt-connected to one end face of the bearing housing II (18), and a bearing is installed between the other end face of the bearing housing II (18) and the excitation assembly end cover II (17) for positioning.

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

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