Double-speed spindle box

Abstract

The utility model provides a double-speed spindle box. The double-speed spindle box comprises a main box body, a first shaft body, a second shaft body, a driving mechanism and a speed reducing mechanism, the first shaft body is rotationally arranged on the main box body, and the second shaft body penetrates through the interior of the first shaft body and is rotationally connected with the first shaft body; the speed reducing mechanism comprises a first gear set, a second gear set, a third gear set and a transmission shaft body; the first gear set is connected with the driving mechanism, one end of the second shaft body is connected with the second gear set, one end of the first shaft body is connected with the third gear set, and the second gear set and the third gear set are in transmission connection with the first gear set through the transmission shaft body; the other end of the first shaft body is provided with a first saw blade installation section extending out of the main box body, and the other end of the second shaft body is provided with a second saw blade installation section extending out of the first shaft body. The tower-shaped saw blade group has the advantages that the small saw blade at the front end and the large saw blade at the rear end in the tower-shaped saw blade group have different rotating speeds, and the tower-shaped saw blade group is ensured to have more reasonable torque cutting output.

Description

TECHNICAL FIELD

[0001] The utility model relates to cutting machine technical field, especially a double -speed spindle box. BACKGROUND

[0002] The structure of the cutting machine is different according to the different cutting objects. In order to improve work efficiency, a stone cutting machine capable of achieving multi-piece combined stone cutting effect appears, such as the Chinese utility model patent with the application number CN202222467041.4 discloses a cutting machine, which is provided with a plurality of saw blades at an interval, and the plurality of saw blades form a tower-shaped saw blade group, that is, each saw blade is arranged in a tower-shaped structure from large to small. However, the saw blades of the tower-shaped saw blade group are of different sizes, and the existing cutting machine drives the tower-shaped saw blade group to rotate by using a main shaft, so that the small saw blade at the front end and the large saw blade at the rear end have the same rotating speed, and it is impossible to ensure that the tower-shaped saw blade group has a reasonable torque cutting amount. In view of the above problems, it is urgent to provide a double-speed spindle box capable of enabling the small saw blade at the front end and the large saw blade at the rear end of the tower-shaped saw blade group to have different rotating speeds, so as to ensure that the tower-shaped saw blade group has a reasonable torque cutting amount. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a double-speed spindle box capable of enabling the small saw blade at the front end and the large saw blade at the rear end of the tower-shaped saw blade group to have different rotating speeds.

[0004] The utility model is implemented in the following way: a double-speed spindle box, which comprises a main box body, a first shaft body, a second shaft body, a driving mechanism and a speed reduction mechanism; the first shaft body is rotationally arranged on the main box body, the second shaft body passes through the inside of the first shaft body and is rotationally connected with the first shaft body;

[0005] The speed reduction mechanism comprises a first gear set, a second gear set, a third gear set and a transmission shaft body; the first gear set is connected with the driving mechanism, one end of the second shaft body is connected with the second gear set, one end of the first shaft body is connected with the third gear set, and the second gear set and the third gear set are both transmissionally connected with the first gear set through the transmission shaft body; the other end of the first shaft body has a first saw blade mounting section extending to the outside of the main box body, and the other end of the second shaft body has a second saw blade mounting section extending to the outside of the first shaft body.

[0006] Further, the rotating speed of the second shaft body is greater than that of the first shaft body, and the rotating speed of the second shaft body is less than the output rotating speed of the driving mechanism.

[0007] Further, the first gear set comprises a first gear and a second gear arranged in mesh with each other, the first gear is arranged at the output end of the driving mechanism, and the second gear is arranged on the transmission shaft body, the number of teeth of the first gear is less than that of the second gear;

[0008] The second gear set comprises a third gear and a fourth gear arranged in mesh with each other, the third gear is arranged on the transmission shaft body, and the fourth gear is arranged on the second shaft body, the number of teeth of the fourth gear is less than or equal to that of the third gear;

[0009] The third gear set comprises a fifth gear and a sixth gear arranged in mesh with each other, the fifth gear is arranged on the transmission shaft body, and the sixth gear is arranged on the first shaft body, the number of teeth of the fifth gear is less than that of the sixth gear.

[0010] Further, the first gear, the second gear, the third gear, the fourth gear, the fifth gear and the sixth gear are all helical gears.

[0011] Further, the first saw blade mounting section is further provided with an extension shaft section extending in the axial direction, the outer part of the extension shaft section is sleeved with a bearing mounting seat, the outer part of the bearing mounting seat is sleeved with a mounting sleeve, the mounting sleeve serves as a second saw blade mounting section, the two ends of the bearing mounting seat are rotatably connected with the mounting sleeve through first bearings, and one end of the mounting sleeve is connected with the other end of the second shaft body.

[0012] Further, the speed reduction mechanism is further provided with a speed reducer box, the speed reducer box is arranged at one end of the main box body, and the first gear set and the second gear set are both arranged in the speed reducer box; the inside of the main box body is divided into a gear set mounting cavity through a support partition plate at the end close to the speed reducer box, and the third gear set is arranged in the gear set mounting cavity.

[0013] Further, one end of the transmission shaft body is rotatably connected with one end of the speed reducer box through a second bearing, the middle part of the transmission shaft body is rotatably connected with the other end of the speed reducer box through a third bearing, and the other end of the transmission shaft body is rotatably connected with the support partition plate through a fourth bearing; one end of the first shaft body is rotatably connected with the support partition plate through a fifth bearing, the middle part of the first shaft body is rotatably connected with the other end of the main box body through a sixth bearing; and one end of the second shaft body is rotatably connected with one end of the speed reducer box through a seventh bearing.

[0014] Further, the other end of the main box body is internally formed with a main shaft sleeve, and the two ends of the main shaft sleeve are rotatably connected with the middle part of the first shaft body through sixth bearings.

[0015] Further, the two ends of the first saw blade mounting section are provided with first limiters, and the two ends of the second saw blade mounting section are provided with second limiters.

[0016] By adopting the technical scheme of the utility model, at least the following beneficial effects are obtained: through designing the double-speed spindle box including the first shaft body and the second shaft body penetrating through the inside of the first shaft body, connecting one end of the first shaft body with the third gear set, the other end of the first shaft body having the first saw blade mounting section, connecting one end of the second shaft body with the second gear set, the other end of the second shaft body having the second saw blade mounting section, when used, the large saw blade in the tower-shaped saw blade set located in the rear end part can be mounted on the first saw blade mounting section, and the small saw blade in the tower-shaped saw blade set located in the front end part can be mounted on the second saw blade mounting section, so that the small saw blade in the front end of the tower-shaped saw blade set and the large saw blade in the rear end have different rotating speeds, and the whole tower-shaped saw blade set has a reasonable torque cutting amount. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further explained in connection with the embodiments with reference to the drawings.

[0018] Figure 1 It is the whole structure diagram of the utility model double-speed spindle box;

[0019] Figure 2 It is the sectional view of the utility model double-speed spindle box;

[0020] Figure 3 It is the structure diagram of the utility model speed reducer;

[0021] Figure 4 It is the local sectional view of the utility model in the position where the second saw blade mounting section is located;

[0022] Figure 5 It is the local sectional view of the utility model in the position where the speed reducer is located.

[0023] Explanation of reference signs:

[0024] Double-speed spindle box 100;

[0025] Main box 1, support partition 11, gear set mounting cavity 12, spindle sleeve 13;

[0026] First shaft body 2, first saw blade mounting section 21, extension shaft section 22, bearing mounting seat 23, first limiting piece 24;

[0027] Second shaft body 3, second saw blade mounting section 31, mounting sleeve 32, second limiting piece 33;

[0028] Driving mechanism 4;

[0029] Speed reduction mechanism 5, first gear set 51, first gear 511, second gear 512, second gear set 52, third gear 521, fourth gear 522, third gear set 53, transmission shaft body 54, speed reducer box 55;

[0030] First bearing 61, second bearing 62, third bearing 63, fourth bearing 64, fifth bearing 65, sixth bearing 66, seventh bearing 67.

DETAILED DESCRIPTION

[0031] In order to better understand the technical scheme of the utility model, the technical scheme of the utility model will be described in detail below in combination with the description of the drawings and specific embodiments.

[0032] It should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing these embodiments and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation. In addition, the terms "first", "second" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features.

[0033] Please refer to Figures 1 to 5 The preferred embodiment of the utility model discloses a double-speed spindle box 100, the double-speed spindle box 100 includes main box body 1, first shaft body 2, second shaft body 3, drive mechanism 4 and speed reduction mechanism 5, wherein the drive mechanism 4 is drive motor, the first shaft body 2 is rotationally arranged on the main box body 1, so that the first shaft body 2 can rotate relative to the main box body 1, the second shaft body 3 passes through the inside of the first shaft body 2 and is rotationally connected with the first shaft body 2, that is, the first shaft body 2 is a hollow shaft, and the second shaft body 3 can independently rotate relative to the first shaft body 2, the speed reduction mechanism 5 is rotationally connected with the second shaft body 3, and the speed reduction mechanism 5 is rotationally connected with the main box body 1, and the speed reduction mechanism 5 is rotationally connected with the second shaft body 3.

[0034] The speed reduction mechanism 5 comprises a first gear set 51, a second gear set 52, a third gear set 53 and a transmission shaft body 54; the first gear set 51 is connected with the driving mechanism 4, so that the first gear set 51 is driven by the driving mechanism 4; one end of the second shaft body 3 is connected with the second gear set 52, so that the second shaft body 3 is driven to rotate by the second gear set 52; one end of the first shaft body 2 is connected with the third gear set 53, so that the first shaft body 2 is driven to rotate by the third gear set 53; the second gear set 52 and the third gear set 53 are both connected with the first gear set 51 through the transmission shaft body 54, so that the first gear set 51 can drive the second gear set 52 and the third gear set 53 through the transmission shaft body 54; the other end of the first shaft body 2 has a first saw blade mounting section 21 extending to the outside of the main box body 1, and the other end of the second shaft body 3 has a second saw blade mounting section 31 extending to the outside of the first shaft body 2; in specific use, a part of saw blades in the tower-shaped saw blade set can be mounted on the first saw blade mounting section 21, and another part of saw blades can be mounted on the second saw blade mounting section 31.

[0035] The utility model discloses a double -speed spindle box 100 including first shaft body 2 and through the second shaft body 3 of first shaft body 2 inside, the one end of first shaft body 2 is connected with third gear set 53, and the other end of first shaft body 2 has first saw blade mounting section 21, and the one end of second shaft body 3 is connected with second gear set 52, and the other end of second shaft body 3 has second saw blade mounting section 31, so that in specific use, the big saw blade of tower-shaped saw blade set in rear end portion can be installed to first saw blade mounting section 21, and the small saw blade of tower-shaped saw blade set in front end portion can be installed to second saw blade mounting section 31, to be able to make the small saw blade (specifically can include the multiple small saw blades of gradually reducing) in front end of tower-shaped saw blade set with the big saw blade (specifically can include the multiple big saw blades of gradually reducing) in rear end have different rotating speed, ensure that the whole tower-shaped saw blade set has the torque cutting amount of being more reasonable.

[0036] In some embodiments of the utility model, the rotating speed of the second shaft body 3 is greater than the rotating speed of the first shaft body 2, that is, the rotating speed of the small saw blade installed on the second saw blade mounting section 31 is greater than the rotating speed of the big saw blade installed on the first saw blade mounting section 21, so that when specifically carrying out stone cutting, the whole tower-shaped saw blade set has the torque cutting amount of being more reasonable, so that the cutting effect can be ensured, and the whole tower-shaped saw blade set is not easy to wear; the rotating speed of the second shaft body 3 is less than the output rotating speed of the driving mechanism 4, that is, the rotating speed of the first shaft body 2 and the rotating speed of the second shaft body 3 are all less than the output rotating speed of the driving mechanism 4, to achieve the purpose of reducing speed and improving output torque.

[0037] The utility model discloses in specific implementation, please refer to Figure 3As shown, the first gear set 51 comprises a first gear 511 and a second gear 512 arranged in meshing with each other, the first gear 511 is arranged at the output end of the driving mechanism 4, the second gear 512 is arranged on the transmission shaft body 54, the number of teeth of the first gear 511 is less than the number of teeth of the second gear 512, so that the first gear set 51 can reduce the output rotating speed of the driving mechanism 4 to improve the output torque;

[0038] The second gear set 52 comprises a third gear 521 and a fourth gear 522 arranged in meshing with each other, the third gear 521 is arranged on the transmission shaft body 54, the fourth gear 522 is arranged on the second shaft body 54, the number of teeth of the fourth gear 522 is less than or equal to the number of teeth of the third gear 521, so that the second gear set 52 can output the rotating speed of the transmission shaft body 54 at constant speed or accelerate to ensure that the small saw blade on the second saw blade mounting section 31 has a greater rotating speed;

[0039] The third gear set 53 comprises a fifth gear 531 and a sixth gear 532 arranged in meshing with each other, the fifth gear 531 is arranged on the transmission shaft body 54, the sixth gear 532 is arranged on the first shaft body 2, the number of teeth of the fifth gear 531 is less than the number of teeth of the sixth gear 532, so that the third gear set 53 can reduce the output rotating speed of the transmission shaft body 54 to ensure that the large saw blade on the first saw blade mounting section 21 has a lower rotating speed.

[0040] As a specific embodiment of the utility model, the first gear 511, the second gear 512, the third gear 521, the fourth gear 522, the fifth gear 531 and the sixth gear 532 all adopt helical gears. Because the teeth of the helical gears are inclined, the meshing process of each tooth adopts progressive contact, which can effectively reduce impact and noise and improve transmission quality and stability. The design of the helical gears makes them have greater coincidence degree, so that they can bear greater load. At the same time, through the combination of helical gears with different numbers of teeth, different proportional speed adjustment and steering adjustment can be realized.

[0041] In some embodiments of the utility model, please refer to Figure 4As shown, the first saw blade mounting section 21 is also provided with an extension shaft section 22 extending along the axial direction, an outer bearing mounting seat 23 is sleeved on the extension shaft section 22, an installation sleeve 32 is sleeved on the outer bearing mounting seat 23, the installation sleeve 32 is used as the second saw blade mounting section 31, the two ends of the bearing mounting seat 23 are rotatably connected with the installation sleeve 32 through the first bearing 61, so that the installation sleeve 32 can stably rotate, and one end of the installation sleeve 32 is connected with the other end of the second shaft body 3, so that the second shaft body 3 drives the installation sleeve 32 to rotate.

[0042] The first saw blade mounting section 21 is provided with the extension shaft section 22 extending along the axial direction, the outer bearing mounting seat 23 is sleeved on the extension shaft section 22, the installation sleeve 32 is sleeved on the outer bearing mounting seat 23, the two ends of the bearing mounting seat 23 are rotatably connected with the installation sleeve 32 through the first bearing 61, and the installation sleeve 32 is directly used as the second saw blade mounting section 31 for mounting the saw blade.

[0043] In some embodiments of the utility model, the speed reducer mechanism 5 is also equipped with a speed reducer box 55, the speed reducer box 55 is arranged at one end of the main box body 1, and specifically, the speed reducer box 55 and the main box body 1 are locked and connected together by screws; the first gear set 51 and the second gear set 42 are arranged in the speed reducer box 55; the inside of the main box body 1 is divided into a gear set mounting cavity 12 at one end close to the speed reducer box 55 by a supporting partition plate 11, and the third gear set 53 is arranged in the gear set mounting cavity 12.

[0044] Because the double-speed spindle box 100 of the utility model is provided with the first shaft body 2 and the second shaft body 3, and the end of the second shaft body 3 needs to extend to the outside of the first shaft body 2, the speed reducer box 55 is arranged at one end of the main box body 1, the first gear set 51 and the second gear set 52 are arranged in the speed reducer box 55, and the third gear set 53 is arranged in the main box body 1, so that the actual installation operation can be facilitated, the first gear set 51, the second gear set 52 and the third gear set 53 can be protected, and the whole structure can be more compact and beautiful.

[0045] In some embodiments of the utility model, please refer toFigure 5 As shown, in order to make the transmission shaft body 54, the first shaft body 2 and the second shaft body 3 can smoothly rotate, one end of the transmission shaft body 54 is rotatably connected with one end of the speed reducer box 55 through the second bearing 62, the middle part of the transmission shaft body 54 is rotatably connected with the other end of the speed reducer box 55 through the third bearing 63, the other end of the transmission shaft body 54 is rotatably connected with the support partition plate 11 through the fourth bearing 64; one end of the first shaft body 2 is rotatably connected with the support partition plate 11 through the fifth bearing 65, the middle part of the first shaft body 2 is rotatably connected with the other end of the main box body 1 through the sixth bearing 66; one end of the second shaft body 3 is rotatably connected with one end of the speed reducer box 55 through the seventh bearing 67.

[0046] In some embodiments of the utility model, the other end of main box body 1 is formed with main shaft sleeve 13, both ends of main shaft sleeve 13 are rotatably connected with the middle part of first shaft body 2 through sixth bearing 66.

[0047] Because the other end of first shaft body 2 is provided with first saw blade mounting section 21 and extension shaft section 22, the first shaft body 2 is long, therefore, by setting main shaft sleeve 13 on the other end of main box body 1, and rotatably connecting both ends of main shaft sleeve 13 with the middle part of first shaft body 2 through sixth bearing 66, more reliable support to first shaft body 2 can be realized, and the rotation of first shaft body 2 can be ensured.

[0048] In some embodiments of the utility model, both ends of first saw blade mounting section 21 are provided with first limiting piece 24, so as to limit the saw blade installed on first saw blade mounting section 21 by first limiting piece 24, and first limiting piece 24 is detachably installed with first shaft body 2; both ends of second saw blade mounting section 31 (i.e. mounting sleeve 32) are provided with second limiting piece 33, so as to limit the saw blade installed on second saw blade mounting section 31 by second limiting piece 33, and in the specific implementation, one end of second limiting piece 33 can be integrally formed with mounting sleeve 32, and the other end of second limiting piece 33 is detachably installed with mounting sleeve 32.

[0049] Although the specific embodiments of the utility model are described above, those skilled in the art should understand that the specific embodiments described by us are only illustrative, and are not used to limit the scope of the utility model, and equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the utility model should be covered in the scope of protection of the claims of the utility model.

Claims

1. A two-speed spindle head, characterized by: The application relates to a double-shaft sawing machine, which comprises a main box body, a first shaft body, a second shaft body, a driving mechanism and a speed reduction mechanism. The speed reduction mechanism comprises a first gear set, a second gear set, a third gear set and a transmission shaft body; the first gear set is connected with the driving mechanism; one end of the second shaft body is connected with the second gear set; one end of the first shaft body is connected with the third gear set; the second gear set and the third gear set are both transmissionally connected with the first gear set through the transmission shaft body; the other end of the first shaft body has a first saw blade mounting section extending to the outside of the main box body; and the other end of the second shaft body has a second saw blade mounting section extending to the outside of the first shaft body.

2. A dual speed spindle head as claimed in claim 1, characterised in that: The rotating speed of the second shaft body is greater than that of the first shaft body, and the rotating speed of the second shaft body is less than the output rotating speed of the driving mechanism.

3. A dual speed spindle head as claimed in claim 1, characterized in that: The first gear set comprises a first gear and a second gear which are arranged in mesh with each other; the first gear is arranged at the output end of the driving mechanism; the second gear is arranged on the transmission shaft body; and the number of teeth of the first gear is less than that of the second gear. The second gear set comprises a third gear and a fourth gear which are arranged in mesh with each other; the third gear is arranged on the transmission shaft body; the fourth gear is arranged on the second shaft body; and the number of teeth of the fourth gear is less than or equal to that of the third gear. The third gear set comprises a fifth gear and a sixth gear which are arranged in mesh with each other; the fifth gear is arranged on the transmission shaft body; the sixth gear is arranged on the first shaft body; and the number of teeth of the fifth gear is less than that of the sixth gear.

4. A dual speed spindle head as claimed in claim 3, characterised in that: The first gear, the second gear, the third gear, the fourth gear, the fifth gear and the sixth gear are all helical gears.

5. A dual speed spindle head as claimed in claim 1, characterized in that: The first saw blade mounting section is further provided with an extension shaft section extending along the axial direction; the outside of the extension shaft section is sleeved with a bearing mounting seat; the outside of the bearing mounting seat is sleeved with a mounting sleeve; the mounting sleeve serves as the second saw blade mounting section; the two ends of the bearing mounting seat are both rotationally connected with the mounting sleeve through first bearings; and one end of the mounting sleeve is connected with the other end of the second shaft body.

6. A dual speed spindle head as claimed in claim 1, characterized in that: The speed reduction mechanism is further provided with a speed reducer box; the speed reducer box is arranged at one end of the main box body; the first gear set and the second gear set are both arranged in the speed reducer box; the inside of the main box body is divided into a gear set mounting cavity through a supporting partition plate at the end close to the speed reducer box; and the third gear set is arranged in the gear set mounting cavity.

7. A dual speed spindle head as claimed in claim 6, characterised in that: One end of the transmission shaft body is rotationally connected with one end of the speed reducer box through a second bearing; the middle part of the transmission shaft body is rotationally connected with the other end of the speed reducer box through a third bearing; the other end of the transmission shaft body is rotationally connected with the supporting partition plate through a fourth bearing; one end of the first shaft body is rotationally connected with the supporting partition plate through a fifth bearing; the middle part of the first shaft body is rotationally connected with the other end of the main box body through a sixth bearing; and one end of the second shaft body is rotationally connected with one end of the speed reducer box through a seventh bearing.

8. A dual speed spindle head as claimed in claim 7, characterised in that: The other end of the main box body is internally formed with a main shaft sleeve; and the two ends of the main shaft sleeve are both rotationally connected with the middle part of the first shaft body through sixth bearings.

9. A dual speed spindle head as claimed in claim 1, characterized in that: The first saw blade mounting section is provided with first limiting members at both ends, and the second saw blade mounting section is provided with second limiting members at both ends.

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