Direct connection transmission type double-beam large cutting machine

Abstract

The invention discloses a direct connection transmission type double-beam large cutting machine, and belongs to the technical field of cutting machines. The large cutting machine comprises a cutter head, a motor and a reduction gearbox, one end of the reduction gearbox is fixedly connected with a connecting disc, the motor is fixedly connected to the connecting disc, the reduction gearbox is rotationally connected with an input shaft in the center of the connecting disc, the input shaft is in transmission connection with an output shaft of the motor, and the reduction gearbox is rotationally connected with a transmission shaft and a main shaft in sequence below the main shaft. The input shaft and the transmission shaft are in transmission connection through two first-stage gears, the transmission shaft and the main shaft are in transmission connection through two second-stage gears, a supporting plate is arranged in the reduction gearbox, one end of the transmission shaft is rotationally connected with the supporting plate, the middle of the main shaft is rotationally connected with the supporting plate, and one end of the main shaft extends to the outer side of the reduction gearbox. Through the direct connection mode, the structure is simple, energy loss in the transmission process is reduced, high efficiency and stability of power transmission can be guaranteed, the number of transmission parts is reduced through the direct connection mode, maintenance is easy, and cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of cutting machines, in particular to a direct-drive double-beam large cutting machine. Background Art

[0002] A large saw is a cutting machine used to cut large objects such as stone. It needs to withstand a large load during the cutting process. The orientation of the blades of most existing large saws is different from that of the motor, which will cause energy loss during the transmission process. At the same time, it will affect the efficiency and stability of power transmission to a certain extent. In addition, there are many parts and it is more troublesome to maintain. Therefore, it is necessary to design a direct-drive large saw to solve this problem. Summary of the invention

[0003] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or be understood by implementing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description and other drawings of the description.

[0004] The object of the present invention is to overcome the above-mentioned disadvantages and provide a direct-drive double-beam large-scale cutting machine.

[0005] To achieve the above-mentioned purpose, the technical solution of the present invention is: a direct-drive double-beam large cutting machine, including a cutter disc, a motor and a reduction gearbox, one end of the reduction gearbox is fixedly connected to a connecting plate, the motor is fixedly connected to the connecting plate, the reduction gearbox is rotatably connected to an input shaft at the center of the connecting plate, the input shaft is transmission-connected to the output shaft of the motor, the reduction gearbox is rotatably connected to a transmission shaft and the main shaft under the main shaft in sequence, the input shaft and the transmission shaft are mutually transmission-connected via two primary gears, the transmission shaft and the main shaft are mutually transmission-connected via two secondary gears, a support plate is provided in the reduction gearbox, one end of the transmission shaft is rotationally connected to the support plate, the middle part of the main shaft is rotationally connected to the support plate, one end of the main shaft extends to the outside of the reduction gearbox, and the cutter disc is fixedly connected to the end of the main shaft.

[0006] By adopting the above technical solution, a connecting plate is set at the end of the reduction box away from the cutter disc, so that the output shaft of the motor can be in the same direction as the main shaft, and then the power of the motor is reduced twice by the transmission shaft, a pair of primary gears and a pair of secondary gears to transmit the power of the motor to the main shaft, so as to provide the low speed and high torque required for stone cutting, and in this way, the direct connection between the motor and the reducer is realized. The direct connection method has a simple structure, reduces the energy loss in the transmission process, can ensure the high efficiency and stability of power transmission, and reduces the number of transmission components, simple maintenance and low cost.

[0007] Preferably, the reduction box is provided with a bearing seat at one end close to the cutter disc, a plurality of bearings are provided in the bearing seat, and the main shaft is rotatably connected to the bearing seat through the plurality of bearings. The present invention utilizes the bearing seat to accommodate a plurality of bearings with different functions to provide stable support for the main shaft and the cutter disc.

[0008] Preferably, the bearing seat is provided with an oil channel having outlets toward the plurality of bearings. The present invention utilizes the oil channel and the outlets on the oil channel to allow the lubricant in the reduction gearbox to flow into the bearings, thereby lubricating the bearings. At the same time, the bearings can be cooled by the lubricating oil flowing in the bearing seat.

[0009] Preferably, the main shaft is surrounded by a plurality of supporting assemblies, each of the supporting assemblies includes a wheel frame, a wheel body, an elastic member and a base, the base is fixedly connected to the reduction gear box, the wheel frame is slidably connected to the base, the elastic member is arranged between the wheel frame and the base, the wheel body is rotatably connected to the wheel frame, a gap is provided between the wheel body and the main shaft through a limiting mechanism, and the reduction gear box is provided with a trigger mechanism for releasing the limit of the limiting mechanism under the main shaft. The present invention utilizes the limiting mechanism to ensure that there is a certain gap between the wheel body and the main shaft and to deform and store energy of the elastic member, so that the main shaft will not contact the wheel body under normal conditions, thereby avoiding wear of the wheel body, and when the bearing used to support the main shaft is worn and causes the main shaft to fall downward, the trigger mechanism will be operated to drive the limiting mechanism to release the limit on the wheel body, at this time, the elastic member will drive the wheel frame to slide so that the wheel body is pressed against the main shaft, so that the main shaft can be temporarily supported to a certain extent, thereby preventing the main shaft from deviating too much, causing the cutter disc to tilt, etc., which may lead to safety accidents and excessive damage to the mechanism.

[0010] Preferably, the limiting mechanism includes a limiting rope and a plurality of pressure-bearing parts, each of the pressure-bearing parts is fixedly connected to each wheel frame, guide wheels are provided on both sides of each base, the limiting rope passes around each guide wheel, and the limiting rope is pressed on the pressure-bearing parts. The present invention utilizes tensioning limiting ropes to press against the pressure-bearing parts, thereby limiting the sliding of the wheel frame, and the guide wheels are used to guide the direction of the limiting rope, so that the limiting rope can generate downward pressure on the wheel frame, thereby balancing the elastic force generated by the elastic part.

[0011] Preferably, the trigger mechanism includes a support frame, a support wheel and a knife roller, the support frame is fixedly connected to the reduction box, the support wheel and the knife roller are both rotatably connected to the support frame, the blade of the knife roller faces upward, the limit rope bypasses the knife roller from below the knife roller, and the knife roller and the support wheel are transmission-connected to each other. When the main shaft falls, the present invention will contact the support wheel, and the support wheel will also rotate due to the friction force caused by the rotation of the main shaft itself. The support wheel will transmit the rotation to the knife roller, and the rotation of the knife roller will turn the blade towards the limit rope, thereby cutting the limit rope. At this time, all wheel frames are in contact with the limit.

[0012] Preferably, the support assemblies are provided in three groups, two of which are respectively provided on both sides of the main shaft, and the other is located above the main shaft, and the support assembly located above the main shaft is connected to the reduction gearbox through a connecting frame. The present invention sets three groups of support assemblies as the minimum number to provide stable support, and the connecting frame is used to fix the support assembly located above the main shaft.

[0013] Preferably, the connecting frame is slidably connected to a tensioning frame, the tensioning frame is rotatably connected to a tensioning wheel, the limiting rope passes over the tensioning wheel, an elastic member 2 is arranged between the tensioning frame and the connecting frame, the connecting frame is threadedly connected to an adjusting bolt, the adjusting bolt abuts against the tensioning frame, the present invention can adjust the position of the tensioning wheel by rotating the adjusting bolt, the upward movement of the tensioning wheel is provided by the elastic member 2, and the downward movement of the tensioning wheel is provided by pressing down the adjusting bolt, and the tensioning degree of the limiting rope can be more conveniently adjusted through the tensioning wheel, thereby adjusting the distance between the wheel body and the main shaft.

[0014] Preferably, the connecting frame is rotatably connected to guide wheels on both sides of the tensioning frame. The present invention utilizes the guidance of the guide wheels to enable the tensioning wheel to better adjust the tension.

[0015] Preferably, the support plate is provided with oil and gas circulation holes.

[0016] In summary, the beneficial effects of the present invention are: 1. The direct connection method has a simple structure, reduces energy loss during transmission, and can ensure the efficiency and stability of power transmission. The direct connection method reduces the number of transmission parts, simplifies maintenance, and reduces costs.

[0017] 2. By utilizing the cooperation of the trigger mechanism, the limit mechanism and the support assembly, the main shaft can get a certain support after the bearing is damaged, reducing the shaking and deviation of the main shaft, avoiding the occurrence of safety accidents, and reducing the damage to the reduction box.

[0018] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

[0019] Undoubtedly, these and other objects of the present invention will become more apparent after the following detailed description of the preferred embodiment described with reference to various figures and drawings.

[0020] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, one or several preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation of the present invention.

[0022] In the drawings, the same reference numerals are used for the same components and the drawings are schematic and not necessarily drawn to scale.

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only one or several embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on such drawings without paying creative work.

[0024] Figure 1 This is a schematic diagram of the overall structure after removing the support assembly, trigger mechanism and limit mechanism; Figure 2 It is a schematic diagram of the overall structure; Figure 3 for Figure 2 A schematic diagram of the partially enlarged structure in the middle; Figure 4 It is a schematic diagram of the trigger mechanism structure; Figure 5 It is a schematic diagram of the structure of the support assembly and the tensioning wheel; Figure 6 for Figure 2 Schematic diagram of the cross-sectional structure.

[0025] Explanation of main reference numerals: 1. Cutter disc; 2. Motor; 3. Reducer box; 4. Connecting plate; 5. Input shaft; 6. Transmission shaft; 7. Main shaft; 8. Primary gear; 9. Secondary gear; 10. Support plate; 11. Bearing seat; 12. Oil channel; 13. Wheel frame; 14. Wheel body; 15. Elastic part 1; 16. Base; 17. Limiting rope; 18. Pressure part; 19. Support frame; 20. Support wheel; 21. Cutter roller; 22. Connecting frame; 23. Tensioning frame; 24. Tensioning wheel; 25. Elastic part 2; 26. Adjusting bolt; 27. Guide wheel; 28. Oil and gas circulation hole. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but are not used to limit the present invention.

[0027] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through a transition structure, but are connected to form a whole through a connecting structure. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0029] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0030] like Figure 1-6As shown, a direct-drive double-beam large cutting machine includes a cutter disc 1, a motor 2 and a reduction gearbox 3, one end of the reduction gearbox 3 is fixedly connected to a connecting disc 4, the motor 2 is fixedly connected to the connecting disc 4, the reduction gearbox 3 is rotatably connected to an input shaft 5 at the center of the connecting disc 4, the input shaft 5 is transmission-connected to the output shaft of the motor 2, the reduction gearbox 3 is rotatably connected to a transmission shaft 6 and the main shaft 7 in sequence below the main shaft 7, the input shaft 5 and the transmission shaft 6 are transmission-connected to each other through two primary gears 8, the transmission shaft 6 and the main shaft 7 are transmission-connected to each other through two secondary gears 9, a support plate 10 is provided in the reduction gearbox 3, one end of the transmission shaft 6 is rotationally connected to the support plate 10, the middle part of the main shaft 7 is rotationally connected to the support plate 10, one end of the main shaft 7 extends to the outside of the reduction gearbox 3, and the cutter disc 1 is fixedly connected to the end of the main shaft 7.

[0031] By adopting the above technical solution, a connecting plate 4 is arranged at the end of the reduction box 3 away from the cutter disc 1, so that the output shaft of the motor 2 can be in the same direction as the main shaft 7, and then the power of the motor 2 is reduced twice by the transmission shaft 6, a pair of primary gears 8 and a pair of secondary gears 9 to transmit the power of the motor 2 to the main shaft 7, so as to provide the low speed and high torque required for stone cutting, and in this way, the direct connection between the motor 2 and the reducer is realized. The direct connection method has a simple structure, reduces the energy loss in the transmission process, can ensure the high efficiency and stability of power transmission, and reduces the number of transmission components, simple maintenance, and low cost.

[0032] The reduction box 3 is provided with a bearing seat 11 at one end close to the cutter disc 1. A plurality of bearings are provided in the bearing seat 11. The main shaft 7 is rotatably connected to the bearing seat 11 through the bearings. The bearing seat 11 can be used to place a plurality of bearings with different functions to provide stable support for the main shaft 7 and the cutter disc 1.

[0033] The bearing seat 11 is provided with an oil passage 12 having outlets toward a plurality of bearings. The oil passage 12 and the outlets on the oil passage 12 are utilized to allow the lubricant in the reduction gearbox 3 to flow into the bearings, thereby lubricating the bearings. Meanwhile, the lubricant oil flows in the bearing seat 11, thereby cooling the bearings.

[0034] Several supporting components are arranged around the main shaft 7, each supporting component includes a wheel frame 13, a wheel body 14, an elastic member 15 and a base 16, the base 16 is fixedly connected to the reduction box 3, the wheel frame 13 is slidably connected to the base 16, the elastic member 15 is arranged between the wheel frame 13 and the base 16, the wheel body 14 is rotatably connected to the wheel frame 13, and there is a gap between the wheel body 14 and the main shaft 7 through a limiting mechanism. The reduction box 3 is provided with a trigger mechanism for releasing the limit of the limiting mechanism under the main shaft 7, and the limiting mechanism is used to make a certain gap between the wheel body 14 and the main shaft 7 and The elastic member 15 is deformed and stores energy, so that the main shaft 7 will not come into contact with the wheel body 14 under normal conditions, thereby avoiding wear of the wheel body 14. When the bearing used to support the main shaft 7 is worn and causes the main shaft 7 to fall downward, the trigger mechanism will work, driving the limiting mechanism to release the limit on the wheel body 14. At this time, the elastic member 15 will drive the wheel frame 13 to slide so that the wheel body 14 is pressed against the main shaft 7, thereby temporarily supporting the main shaft 7 to a certain extent, thereby preventing the main shaft 7 from deviating too much, causing the cutter head 1 to tilt, etc., which may lead to safety accidents and excessive damage to the mechanism.

[0035] The limiting mechanism includes a limiting rope 17 and a plurality of pressure-bearing parts 18, each of which is fixedly connected to each wheel frame 13, and guide wheels are provided on both sides of each base 16. The limiting rope 17 passes around each guide wheel, and the limiting rope 17 is pressed on the pressure-bearing part 18. The limiting rope 17 is tensioned and pressed against the pressure-bearing part 18, so as to limit the sliding of the wheel frame 13. The guide wheel is used to guide the direction of the limiting rope 17, so that the limiting rope 17 can generate downward pressure on the wheel frame 13, thereby balancing the elastic force generated by the elastic part 15.

[0036] The trigger mechanism includes a support frame 19, a support wheel 20 and a knife roller 21. The support frame 19 is fixedly connected to the reduction box 3. The support wheel 20 and the knife roller 21 are both rotatably connected to the support frame 19. The blade of the knife roller 21 faces upward, and the limit rope 17 passes around the knife roller 21 from the bottom of the knife roller 21. The knife roller 21 and the support wheel 20 are transmission-connected to each other. When the main shaft 7 falls, it will contact the support wheel 20. The rotation of the main shaft 7 itself drives the support wheel 20 to rotate through friction. The support wheel 20 transmits the rotation to the knife roller 21. The rotation of the knife roller 21 turns the blade toward the limit rope 17, and the limit rope 17 is cut. At this time, all the wheel frames 13 are in contact with the limit.

[0037] There are three groups of support components, two of which are respectively arranged on both sides of the main shaft 7, and the other is located above the main shaft 7. The support component located above the main shaft 7 is connected to the reduction box 3 through a connecting frame 22. Three groups of support components are set to provide the minimum number of stable supports. The connecting frame 22 is used to fix the support component located above the main shaft 7.

[0038] The connecting frame 22 is slidably connected to the tensioning frame 23, and the tensioning frame 23 is rotatably connected to the tensioning wheel 24. The limiting rope 17 passes around the tensioning wheel 24. An elastic member 25 is arranged between the tensioning frame 23 and the connecting frame 22. The connecting frame 22 is threadedly connected to an adjusting bolt 26, and the adjusting bolt 26 abuts against the tensioning frame 23. The position of the tensioning wheel 24 can be adjusted by rotating the adjusting bolt 26. The upward movement of the tensioning wheel 24 is provided by the elastic member 25, and the downward movement of the tensioning wheel 24 is provided by pressing down the adjusting bolt 26. The tensioning degree of the limiting rope 17 can be more conveniently adjusted through the tensioning wheel 24, thereby adjusting the distance between the wheel body 14 and the main shaft 7.

[0039] The connecting frame 22 is rotatably connected with guide wheels 27 on both sides of the tensioning frame 23 , and the tensioning wheel 24 can be better adjusted and tensioned by the guidance of the guide wheels 27 .

[0040] The support plate 10 is provided with oil and gas circulation holes 28 .

[0041] It should be noted that many specific details are set forth in the above description to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

Claims

1. A direct-drive double-beam large-scale cutting machine, comprising a cutter disc (1), a motor (2) and a reduction gearbox (3), characterized in that: One end of the reduction box (3) is fixedly connected to a connecting disk (4), the motor (2) is fixedly connected to the connecting disk (4), the reduction box (3) is rotatably connected to an input shaft (5) at the center of the connecting disk (4), the input shaft (5) is transmission-connected to a main shaft (7) of the motor (2), the reduction box (3) is rotatably connected to a transmission shaft (6) and the main shaft (7) below the main shaft (7), the input shaft (5) and the transmission shaft (6) are transmission-connected to each other via two primary gears (8), the transmission shaft (6) and the main shaft (7) are transmission-connected to each other via two secondary gears (9), a support plate (10) is provided in the reduction box (3), one end of the transmission shaft (6) is rotationally connected to the support plate (10), the middle part of the main shaft (7) is rotationally connected to the support plate (10), one end of the main shaft (7) extends to the outside of the reduction box (3), and the cutter head (1) is fixedly connected to the end of the main shaft (7).

2. The direct-drive double-beam large-scale cutting machine according to claim 1 is characterized in that: The reduction box (3) is provided with a bearing seat (11) at one end close to the cutter disc (1), a plurality of bearings are provided in the bearing seat (11), and the main shaft (7) is rotatably connected to the bearing seat (11) via the plurality of bearings.

3. The direct-drive double-beam large-scale cutting machine according to claim 2 is characterized in that: The bearing seat (11) is provided with an oil passage (12), and the oil passage (12) has an outlet facing the plurality of bearings.

4. The direct-drive double-beam large-scale cutting machine according to claim 3 is characterized in that: The main shaft (7) is surrounded by a plurality of support assemblies, each of which comprises a wheel frame (13), a wheel body (14), an elastic member (15) and a base (16); the base (16) is fixedly connected to the reduction box (3); the wheel frame (13) is slidably connected to the base (16); the elastic member (15) is arranged between the wheel frame (13) and the base (16); the wheel body (14) is rotatably connected to the wheel frame (13); a gap is formed between the wheel body (14) and the main shaft (7) via a limiting mechanism; and the reduction box (3) is provided with a trigger mechanism for releasing the limiting mechanism below the main shaft (7).

5. The direct-drive double-beam large-scale cutting machine according to claim 4 is characterized in that: The limiting mechanism comprises a limiting rope (17) and a plurality of pressure-bearing members (18), each of the pressure-bearing members (18) being fixedly connected to each wheel frame (13), guide wheels being arranged on both sides of each base (16), the limiting rope (17) passing around each guide wheel, and the limiting rope (17) pressing on the pressure-bearing member (18).

6. The direct-drive double-beam large-scale cutting machine according to claim 5, characterized in that: The trigger mechanism comprises a support frame (19), a support wheel (20) and a knife roller (21); the support frame (19) is fixedly connected to the reduction box (3); the support wheel (20) and the knife roller (21) are both rotatably connected to the support frame (19); the blade of the knife roller (21) faces upward; the limit rope (17) passes around the knife roller (21) from below the knife roller (21); and the knife roller (21) and the support wheel (20) are transmission-connected to each other.

7. The direct-drive double-beam large-scale cutting machine according to claim 5, characterized in that: The support components are provided in three groups, two of which are provided on both sides of the main shaft (7), and the other is located above the main shaft (7). The support components located above the main shaft (7) are connected to the reduction box (3) via a connecting frame (22).

8. The direct-drive double-beam large-scale cutting machine according to claim 7 is characterized in that: The connecting frame (22) is slidably connected to a tensioning frame (23), the tensioning frame (23) is rotatably connected to a tensioning wheel (24), the limiting rope (17) passes around the tensioning wheel (24), an elastic member 2 (25) is provided between the tensioning frame (23) and the connecting frame (22), the connecting frame (22) is threadedly connected to an adjusting bolt (26), and the adjusting bolt (26) is in contact with the tensioning frame (23).

9. The direct-drive double-beam large-scale cutting machine according to claim 8, characterized in that: The connecting frame (22) is rotatably connected to guide wheels (27) on both sides of the tensioning frame (23).

10. The direct-drive double-beam large-scale cutting machine according to claim 1, characterized in that: The support plate (10) is provided with an oil and gas circulation hole (28).

Images