Parallel shaft hollow platform speed reducer

Abstract

The parallel shaft hollow platform speed reducer comprises a box body, an input shaft and a transmission worm are arranged in the box body, the input shaft is a hollow shaft, the two ends of the input shaft penetrate through the box body and extend to the outer side of the box body, and the transmission worm is in transmission connection with the input shaft; an input bevel gear shaft perpendicular to the input shaft is arranged on the side, away from the transmission worm, of the input shaft in the box body, and the input bevel gear shaft is in transmission connection with the input shaft. An output gear shaft is further arranged in the box body, a mounting disc is fixed to the end portion of one end of the output gear shaft, the output gear shaft and the mounting disc are each of a hollow structure, and cavities of the output gear shaft and the mounting disc communicate with each other; a transmission shaft is arranged on the side, facing the transmission worm, of the output gear shaft, a transmission turbine and a driving gear are arranged on the transmission shaft, the transmission turbine is meshed with the transmission worm, and the driving gear is meshed with the output gear shaft; the transmission device has the advantages of simple structure, reasonable design, convenience in installation and use, stable transmission and the like.

Description

Technical Field

[0001] The utility model relates to a reducer, in particular to a parallel-axis hollow platform reducer. Background Art

[0002] The reducer is a reduction transmission device used between the prime mover and the working machine. It plays the role of matching the speed and transmitting the torque between the prime mover and the working machine or the actuator. It mainly includes a reducer housing, an input shaft, an output shaft, and a gear reduction mechanism arranged between the input shaft and the output shaft. The hollow rotary platform reducer is a new product used in a variety of rotary motion occasions. It has the advantages of high working efficiency, high precision, and high rigidity. However, during the use of the existing hollow platform reducer, the stability of the connection between the various structures is poor, which makes its transmission force poor. The vibration generated by long-term operation can easily loosen the connector, affecting the use of the device. Moreover, the structure of the whole machine is mostly "7" shaped, which is not conducive to installation and use in a small space. Summary of the invention

[0003] The utility model aims to solve the deficiencies of the prior art and provides a parallel shaft hollow platform reducer with simple structure, reasonable design, convenient installation and use, and stable transmission.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a parallel shaft hollow platform reducer, including a box body, an input shaft and a transmission worm are arranged in the box body, the input shaft is a hollow shaft and both ends of which penetrate the box body and extend to the outside of the box body, and the transmission worm is transmission-connected with the input shaft; an input bevel gear shaft perpendicular to the input shaft is arranged in the box body on the side of the input shaft away from the transmission worm, and the input bevel gear shaft is transmission-connected with the input shaft; an output gear shaft is also arranged in the box body, a mounting plate is fixed at one end of the output gear shaft, the output gear shaft and the mounting plate both adopt a hollow structure and the cavities of the two are communicated with each other; a transmission shaft is arranged on the side of the output gear shaft facing the transmission worm, a transmission turbine and a driving gear are arranged on the transmission shaft, the transmission turbine is meshed with the transmission worm, and the driving gear is meshed with the output gear shaft.

[0005] Preferably, the box body comprises a first shell and a second shell, the first shell and the second shell are spliced ​​together to form a box with a rectangular structure, and a sealing ring is provided between the first shell and the second shell.

[0006] Preferably, the housing is provided with an intermediate shaft between the input shaft and the transmission worm, the input shaft, the intermediate shaft and the transmission worm are arranged parallel to each other, the input shaft is also provided with a first bevel gear and a first intermediate gear, the first bevel gear is meshed with the input bevel gear shaft, the transmission worm is provided with a fourth intermediate gear, and the intermediate shaft is provided with a second intermediate gear and a third intermediate gear, which are respectively meshed with the first intermediate gear and the fourth intermediate gear.

[0007] Preferably, a first bearing is provided between both ends of the input shaft and the housing, a third bearing is provided between both ends of the intermediate shaft and the housing, and a fourth bearing is provided between both ends of the transmission worm and the housing.

[0008] Preferably, two groups of second bearings are sleeved between the input bevel gear shaft and the housing, a bearing spacer ring is provided on the outer wall of the input bevel gear shaft between the two groups of second bearings, the housing is provided with a flange on one side of the input end of the input bevel gear shaft, the input end of the input bevel gear shaft extends through the flange to the outside of the housing and a direct connection hole for connecting the motor is provided at the end.

[0009] Preferably, the output gear shaft is fixedly connected to the mounting plate by bolts and is rotatably arranged in the casing through a fifth bearing. The end of the output gear shaft away from the mounting plate and the end of the mounting plate away from the output gear shaft both penetrate the casing and extend to the outside of the casing. A first oil seal skeleton is provided between the output gear shaft and the casing, and a second oil seal skeleton is provided between the mounting plate and the casing.

[0010] Preferably, the housing is provided with a plurality of support shafts on the outside of the output gear shaft, the plurality of support shafts and the transmission shaft are arranged at equal intervals along the circumference of the output gear shaft, the support shafts are provided with support wheels meshing with the output gear shaft, a fifth bearing is provided between both ends of the transmission shaft and the housing, and a sixth bearing is provided between the support shaft and the housing.

[0011] The box body of the utility model adopts a rectangular parallelepiped structure, and the output gear shaft and the input shaft are arranged perpendicular to each other and are both hollow structures. An input bevel gear shaft is also arranged on one side of the input shaft. The position of the motor input can be selected according to the on-site conditions, which greatly facilitates the installation and use of the whole machine. A plurality of supporting wheels are also arranged on the outside of the output gear shaft. The supporting wheels and the driving gear can support the output gear shaft during use, thereby improving the transmission stability of the whole machine.

[0012] The utility model has the advantages of simple structure, reasonable design, convenient installation and use, stable transmission, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of a top view structure of an embodiment of the utility model;

[0014] Figure 2 It is a side view structural schematic diagram of an embodiment of the utility model.

[0015] In the figure: 1, casing; 11, first housing; 12, second housing; 13, sealing ring; 14, flange; 2, input shaft; 21, first bevel gear; 22, first intermediate gear; 23, first bearing; 3, transmission worm; 31, fourth intermediate gear; 32, fourth bearing; 4, input bevel gear shaft; 41, second bearing; 42, bearing spacer; 43, direct connection hole; 5, output gear shaft; 51, fifth bearing; 52, first oil seal skeleton; 6, mounting plate; 61, second oil seal skeleton; 7, transmission shaft; 71, transmission turbine; 72, driving gear; 73, fifth bearing; 8, intermediate shaft; 81, second intermediate gear; 82, third intermediate gear; 83, third bearing; 9, support shaft; 91, support wheel; 92, sixth bearing. DETAILED DESCRIPTION

[0016] The technical solution of the utility model is further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0017] Example:

[0018] like Figure 1 to Figure 2 A parallel axis hollow platform reducer shown includes a housing 1, wherein the housing 1 includes a first shell 11 and a second shell 12, wherein the first shell 11 and the second shell 12 are spliced ​​together to form a box of a rectangular structure, and a sealing ring 13 is provided between the first shell 11 and the second shell 12.

[0019] An input shaft 2 and a transmission worm 3 are arranged in the housing 1. An intermediate shaft 8 is arranged between the input shaft 2 and the transmission worm 3. The input shaft 2, the intermediate shaft 8 and the transmission worm 3 are arranged in parallel with each other. The input shaft 2 is a hollow shaft and both ends thereof extend through the housing 1 to the outside of the housing 1. The transmission worm 3 is transmission-connected with the input shaft 2. A first bevel gear 21 and a first intermediate gear 22 are sleeved on the input shaft 2. The first bevel gear 21 meshes with the input bevel gear shaft 4. A fourth intermediate gear 31 is arranged on the transmission worm 3. A second intermediate gear 81 and a third intermediate gear 82 meshed with the first intermediate gear 22 and the fourth intermediate gear 31 are sleeved on the intermediate shaft 8. A first bearing 23 is arranged between both ends of the input shaft 2 and the housing 1. A third bearing 83 is arranged between both ends of the intermediate shaft 8 and the housing 1. A fourth bearing 32 is arranged between both ends of the transmission worm 3 and the housing 1.

[0020] An input bevel gear shaft 4 perpendicular to the input shaft 2 is provided in the housing 1 on the side of the input shaft 2 away from the transmission worm 3. The input bevel gear shaft 4 is transmission-connected to the input shaft 2. Two groups of second bearings 41 are sleeved between the input bevel gear shaft 4 and the housing 1. A bearing spacer ring 42 is provided on the outer wall of the input bevel gear shaft 4 between the two groups of second bearings 41. The housing 1 is provided with a flange 14 on one side of the input end of the input bevel gear shaft 4. The input end of the input bevel gear shaft 4 passes through the flange 14 and extends to the outside of the housing 1, and a direct connection hole 43 for connecting the motor is provided at the end.

[0021] An output gear shaft 5 is also provided in the housing 1, and a mounting plate 6 is fixed at one end of the output gear shaft 5. The output gear shaft 5 and the mounting plate 6 both adopt a hollow structure and the cavities of the two are interconnected. The output gear shaft 5 and the mounting plate 6 are fixedly connected by bolts and are rotatably arranged in the housing 1 through a fifth bearing 7351. The end of the output gear shaft 5 away from the mounting plate 6 and the end of the mounting plate 6 away from the output gear shaft 5 both penetrate the housing 1 and extend to the outside of the housing 1. A first oil seal skeleton 52 is provided between the output gear shaft 5 and the housing 1, and a second oil seal skeleton 61 is provided between the mounting plate 6 and the housing 1.

[0022] The output gear shaft 5 is provided with a transmission shaft 7 on the side facing the transmission worm 3, and the transmission shaft 7 is provided with a transmission worm 71 and a driving gear 72. The transmission worm 71 is meshed with the transmission worm 3, and the driving gear 72 is meshed with the output gear shaft 5. A fifth bearing 7351 is provided between the two ends of the transmission shaft 7 and the housing 1.

[0023] The housing 1 is provided with a plurality of support shafts 9 on the outside of the output gear shaft 5. The plurality of support shafts 9 and the transmission shaft 7 are arranged at equal intervals along the circumference of the output gear shaft 5. The support shaft 9 is provided with a support wheel 91 meshing with the output gear shaft 5. A sixth bearing 92 is provided between the support shaft 9 and the housing 1.

[0024] The box body 1 of the utility model adopts a rectangular parallelepiped structure, and the output gear shaft 5 and the input shaft 2 are arranged perpendicular to each other and are both hollow structures. An input bevel gear shaft 4 is also arranged on one side of the input shaft 2. The position of the motor input can be selected according to the on-site conditions, which greatly facilitates the installation and use of the whole machine. A plurality of support wheels 91 are also arranged on the outside of the output gear shaft 5. The support wheels 91 and the driving gear 72 can support the output gear shaft 5 during use, thereby improving the stability of the transmission of the whole machine.

[0025] The above-described embodiment is only a preferred solution of the present invention and does not limit the present invention in any form. There are other variations and modifications without exceeding the technical solution described in the claims.

Claims

1. A parallel shaft hollow platform reducer, comprising a housing (1), characterized in that: An input shaft (2) and a transmission worm (3) are provided in the housing (1); the input shaft (2) is a hollow shaft with both ends penetrating the housing (1) and extending to the outside of the housing (1); the transmission worm (3) is transmission-connected to the input shaft (2); an input bevel gear shaft (4) perpendicular to the input shaft (2) is provided in the housing (1) on a side of the input shaft (2) away from the transmission worm (3); the input bevel gear shaft (4) is transmission-connected to the input shaft (2); an output gear shaft ( 5), a mounting plate (6) is fixed to one end of the output gear shaft (5), the output gear shaft (5) and the mounting plate (6) both have a hollow structure and the cavities of the two are interconnected; the output gear shaft (5) is provided with a transmission shaft (7) on the side facing the transmission worm (3), the transmission shaft (7) is provided with a transmission turbine (71) and a drive gear (72), the transmission turbine (71) is meshed with the transmission worm (3), and the drive gear (72) is meshed with the output gear shaft (5).

2. The parallel shaft hollow platform reducer according to claim 1, characterized in that: The box body (1) comprises a first shell (11) and a second shell (12); the first shell (11) and the second shell (12) are spliced ​​together to form a box with a rectangular parallelepiped structure; a sealing ring (13) is provided between the first shell (11) and the second shell (12).

3. The parallel shaft hollow platform reducer according to claim 1, characterized in that: The housing (1) is provided with an intermediate shaft (8) between the input shaft (2) and the transmission worm (3); the input shaft (2), the intermediate shaft (8) and the transmission worm (3) are arranged parallel to each other; the input shaft (2) is also sleeved with a first bevel gear (21) and a first intermediate gear (22); the first bevel gear (21) is meshed with the input bevel gear shaft (4); the transmission worm (3) is provided with a fourth intermediate gear (31); and the intermediate shaft (8) is sleeved with a second intermediate gear (81) and a third intermediate gear (82) which are respectively meshed with the first intermediate gear (22) and the fourth intermediate gear (31).

4. The parallel shaft hollow platform reducer according to claim 3, characterized in that: A first bearing (23) is provided between the two ends of the input shaft (2) and the housing (1), a third bearing (83) is provided between the two ends of the intermediate shaft (8) and the housing (1), and a fourth bearing (32) is provided between the two ends of the transmission worm (3) and the housing (1).

5. The parallel shaft hollow platform reducer according to claim 1, characterized in that: Two groups of second bearings (41) are sleeved between the input bevel gear shaft (4) and the housing (1); a bearing spacer ring (42) is provided on the outer wall of the input bevel gear shaft (4) between the two groups of second bearings (41); the housing (1) is provided with a flange (14) on one side of the input end of the input bevel gear shaft (4); the input end of the input bevel gear shaft (4) passes through the flange (14) and extends to the outside of the housing (1); and a direct connection hole (43) for connecting to a motor is provided at the end thereof.

6. The parallel shaft hollow platform reducer according to claim 1, characterized in that: The output gear shaft (5) and the mounting plate (6) are fixedly connected by bolts and are rotatably arranged in the housing (1) via a fifth bearing (73) (51); an end of the output gear shaft (5) away from the mounting plate (6) and an end of the mounting plate (6) away from the output gear shaft (5) both penetrate the housing (1) and extend to the outside of the housing (1); a first oil seal skeleton (52) is arranged between the output gear shaft (5) and the housing (1); and a second oil seal skeleton (61) is arranged between the mounting plate (6) and the housing (1).

7. The parallel shaft hollow platform reducer according to claim 1, characterized in that: The housing (1) is provided with a plurality of support shafts (9) outside the output gear shaft (5); the plurality of support shafts (9) and the transmission shaft (7) are arranged at equal intervals along the circumference of the output gear shaft (5); the support shaft (9) is provided with a support wheel (91) meshing with the output gear shaft (5); fifth bearings (73) (51) are provided between the two ends of the transmission shaft (7) and the housing (1); and a sixth bearing (92) is provided between the support shaft (9) and the housing (1).

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