A lifting type speed reducer

Abstract

The utility model discloses a kind of lifting type speed reducer, including shell, it is characterized in that, the third rotating shaft, second rotating shaft and first rotating shaft are rotatably arranged between the left and right end walls of the shell, first mounting hole, second mounting hole and third mounting hole are arranged in the shell, bearing assembly rotatably connected with the third rotating shaft, second rotating shaft and first rotating shaft is arranged in the shell, transmission gear assembly is arranged between the third rotating shaft, second rotating shaft and first rotating shaft to realize power output, the third rotating shaft rotates and protrudes from the shell, cover and bottom cover are set to detachable mode, so that complete bearing seat hole can be directly arranged on the shell, the effect of bearing installation fixation is better, the shaft can be more stable transmission, and after cover and bottom cover are disassembled, personnel can put parts from the position of the bottom of shell, first mounting hole, second mounting hole, third mounting hole, which is very convenient.

Description

Technical Field

[0001] This utility model relates to the field of lifting reducer technology, specifically a lifting reducer. Background Technology

[0002] Existing lift-type reducers employ multi-stage transmission, but their reducer housings are split-type. During installation, they require the use of locating pins and bolts for connection and fixation. However, because lift-type reducers need to withstand large torques, the structural stability of split-type housings is poor. Therefore, some existing technologies use integrated housings to install bearings, gears, and drive shafts. However, existing integrated housings only have a single-sided assembly opening, requiring axial force to push in bearings and gears during installation. Furthermore, the assembly space is narrow, tool operation is restricted, and efficiency is extremely low. Extensive research has been conducted to address this issue. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a lifting reducer that can solve the problems in the prior art.

[0004] This utility model is achieved through the following technical solution: A lifting reducer of this utility model includes a housing, characterized in that a third rotating shaft, a second rotating shaft, and a first rotating shaft are rotatably arranged between the left and right end walls of the housing; a first mounting hole, a second mounting hole, and a third mounting hole are provided inside the housing; a bearing assembly is provided inside the housing and rotatably connected to the third rotating shaft, the second rotating shaft, and the first rotating shaft; a transmission gear assembly is provided between the third rotating shaft, the second rotating shaft, and the first rotating shaft to realize power output; and the third rotating shaft rotatably extends out of the housing.

[0005] In a further technical solution, a cover plate is fixedly connected to the left side of the housing, and the cover plate blocks and seals the first mounting hole, the second mounting hole and the third mounting hole.

[0006] In a further technical solution, a bottom cover is fixedly connected to the bottom of the housing.

[0007] A further technical solution includes a bearing assembly comprising a first bearing and a second bearing rotatably disposed on the outer surface of the third rotating shaft. The first bearing and the second bearing are mounted and fixed in bearing seat holes corresponding to the third rotating shaft. A third bearing is also rotatably disposed on the outer surface of the third rotating shaft, and the third bearing is mounted and fixed in the bearing seat hole corresponding to the third rotating shaft.

[0008] In a further technical solution, the bearing assembly also includes a fourth bearing and a fifth bearing that are rotatably disposed on the outer surface of the second rotating shaft, and the fourth bearing and the fifth bearing are installed and fixed in bearing seat holes corresponding to the second rotating shaft.

[0009] In a further technical solution, the bearing assembly also includes two sixth bearings rotatably disposed on the outer surface of the first rotating shaft, wherein the sixth bearings are installed and fixed in bearing seat holes corresponding to the first rotating shaft.

[0010] In a further technical solution, a connecting bearing seat is fixed inside the housing, and the connecting bearing seat has a bearing seat hole opposite to the first rotating shaft, and the sixth bearing is installed and fixed in the bearing seat hole.

[0011] In a further technical solution, a motor is fixed to the right side of the housing, the output shaft of the motor extends into the housing, a first gear is fixed to the outer surface of the output shaft of the motor, and a seventh gear is fixed to the end of the third rotating shaft.

[0012] A further technical solution includes a transmission gear assembly comprising a third gear and a second gear fixed to the outer surface of the first rotating shaft, the second gear meshing with the first gear, a fifth gear and a fourth gear fixed to the outer surface of the second rotating shaft, the fourth gear meshing with the third gear, and a sixth gear fixed to the outer surface of the third rotating shaft, the sixth gear meshing with the fifth gear.

[0013] The beneficial effects of this utility model are: First, by designing the cover plate and bottom cover as detachable structures, complete bearing seat holes can be directly set on the housing, which improves the effect of bearing installation and fixation, and makes the shaft more stable in transmission. After the cover plate and bottom cover are removed, personnel can put parts in from the bottom of the housing, the first mounting hole, the second mounting hole, and the third mounting hole, which is very convenient.

[0014] Second, the housing is also threaded with multiple oil plugs around its perimeter. Lubricating oil is added to the housing by opening the oil plugs. The oil plugs are located on the outer surface of the housing and there are multiple of them.

[0015] Third, this reducer achieves three-stage reduction transmission, which can transmit a large torque and is suitable for lifting-type working environments. Attached Figure Description

[0016] For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of a lifting reducer according to the present invention;

[0018] Figure 2 for Figure 1 Schematic diagram of the rear structure of the intermediate speed reducer;

[0019] Figure 3 for Figure 1 A schematic diagram of the intermediate speed reducer after removing the cover plate;

[0020] Figure 4 for Figure 3 A bottom view of the intermediate speed reducer;

[0021] Figure 5 for Figure 1 Schematic diagram of the internal structure of the medium speed reducer;

[0022] Figure 6 for Figure 1 A cross-sectional view of the intermediate speed reducer;

[0023] Figure 7 for Figure 6 A structural schematic diagram of the gearbox from another side view;

[0024] In the figure, there are cover plate 11, housing 12, motor 13, seventh gear 15, third shaft 16, first bearing 17, second shaft 18, fourth bearing 19, bottom cover 21, first gear 22, third gear 23, first shaft 24, sixth bearing 25, fifth gear 26, sixth gear 27, second bearing 28, third bearing 29, fourth gear 31, second gear 32, fifth bearing 33, connecting bearing seat 41, first mounting hole 51, second mounting hole 52, and third mounting hole 53. Detailed Implementation

[0025] like Figures 1-7 As shown, this utility model will be described in detail. For ease of description, the directions mentioned below are defined as follows: the directions of up, down, left, right, front, and back mentioned below are the same as... Figure 1 The projection relationships of this utility model are consistent in the vertical, horizontal, front-back, and vertical directions. It includes a housing 12, with a cover plate 11 detachably fixed to the left side of the housing 12 via fasteners. A bottom cover 21 detachably fixed to the bottom of the housing 12 via fasteners. A third rotating shaft 16, a second rotating shaft 18, and a first rotating shaft 24 are rotatably arranged between the left and right end walls of the housing 12. A first mounting hole 51 corresponding to the third rotating shaft 16 is provided inside the housing 12. The housing 12 has a second mounting hole 52 opposite to the second rotating shaft 18 and a third mounting hole 53 opposite to the first rotating shaft 24. The cover plate 11 covers and seals the first mounting hole 51, the second mounting hole 52 and the third mounting hole 53. The housing 12 has a bearing assembly that is rotatably connected to the third rotating shaft 16, the second rotating shaft 18 and the first rotating shaft 24. A transmission gear assembly is provided between the third rotating shaft 16, the second rotating shaft 18 and the first rotating shaft 24 to realize power output. The third rotating shaft 16 rotates out of the housing 12.

[0026] Advantageously, the bearing assembly includes a first bearing 17 and a second bearing 28 rotatably disposed on the outer surface of the third shaft 16. The first bearing 17 and the second bearing 28 are mounted and fixed in bearing seat holes corresponding to the third shaft 16. A third bearing 29 is also rotatably disposed on the outer surface of the third shaft 16. The third bearing 29 is mounted and fixed in the bearing seat hole corresponding to the third shaft 16. The third bearing 29 is close to the output end of the third shaft 16. The first bearing 17 is located on one side of the first mounting hole 51.

[0027] Advantageously, the bearing assembly also includes a fourth bearing 19 and a fifth bearing 33 rotatably disposed on the outer surface of the second shaft 18. The fourth bearing 19 and the fifth bearing 33 are mounted and fixed in bearing seat holes corresponding to the second shaft 18, and the fourth bearing 19 is disposed on one side of the second mounting hole 52.

[0028] Advantageously, the bearing assembly also includes two sixth bearings 25 rotatably disposed on the outer surface of the first shaft 24, the sixth bearings 25 being mounted and fixed in bearing seat holes corresponding to the first shaft 24.

[0029] Advantageously, a connecting bearing seat 41 is fixed inside the housing 12, and a bearing seat hole opposite to the first rotating shaft 24 is provided in the connecting bearing seat 41. The sixth bearing 25 is installed and fixed in the bearing seat hole, and the connecting bearing seat 41 is located on one side of the third mounting hole 53.

[0030] Advantageously, a motor 13 is fixed to the right side of the housing 12, the output shaft of the motor 13 extends into the housing 12, a first gear 22 is fixed to the outer surface of the output shaft of the motor 13, and a seventh gear 15 is fixed to the end of the third shaft 16. The motor 13 inputs power to the transmission gear assembly through the first gear 22, and then achieves high torque and low speed power output from the third shaft 16 and the seventh gear 15.

[0031] Advantageously, the motor 13 is connected and fixed to the housing 12 via a flange.

[0032] Advantageously, the transmission gear assembly includes a third gear 23 and a second gear 32 fixed to the outer surface of the first rotating shaft 24, the second gear 32 meshing with the first gear 22, a fifth gear 26 and a fourth gear 31 fixed to the outer surface of the second rotating shaft 18, the fourth gear 31 meshing with the third gear 23, and a sixth gear 27 fixed to the outer surface of the third rotating shaft 16, the sixth gear 27 meshing with the fifth gear 26.

[0033] The motor 13 is mounted and fixed to one side of the housing 12 via a flange. During installation, the cover plate 11 and the bottom cover 21 are disassembled from the housing 12. Then, bearings, shafts and gears are installed inside the housing 12. The sixth bearing 25 is installed in the connecting bearing seat 41, the fourth bearing 19 is installed and fixed to one side of the second mounting hole 52, and the first bearing 17 is installed and fixed to one side of the first mounting hole 51. The first gear 22, the second gear 32, the third gear 23, the fourth gear 31, the fifth gear 26 and the sixth gear 27 form a three-stage transmission ratio structure, so that the third rotating shaft 16 and the seventh gear 15 output high torque and low speed.

[0034] After the personnel have installed the bearings, shafts and gears, they can reinstall and fix the cover plate 11 and the bottom cover 21 to the housing 12. By making the cover plate 11 and the bottom cover 21 detachable, the housing 12 can be directly provided with complete bearing seat holes, which improves the bearing installation and fixation effect and makes the shaft more stable in transmission. After the cover plate 11 and the bottom cover 21 are removed, the personnel can put the parts in from the bottom of the housing 12, the first mounting hole 51, the second mounting hole 52 and the third mounting hole 53, which is very convenient.

[0035] After the motor 13 starts working, it drives the first gear 22 to rotate. The first gear 22 and the second gear 32 form the first stage of reduction transmission. Since the second gear 32, the first shaft 24 and the third gear 23 are fixed, the rotation of the third gear 23 forms the second stage of reduction transmission through the third gear 23 and the fourth gear 31. Since the fourth gear 31, the second shaft 18 and the fifth gear 26 are fixedly connected, the fifth gear 26 will also rotate. The fifth gear 26 and the sixth gear 27 form the third stage of transmission, which can drive the third shaft 16 to rotate. Since the third shaft 16 is fixedly connected to the seventh gear 15, it will also drive the seventh gear 15 to rotate at a reduced speed.

[0036] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without creative effort should be included within the protection scope of this utility model; therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A lifting-type speed reducer, comprising a housing (12), characterized in that, The housing (12) is provided with a third rotating shaft (16), a second rotating shaft (18) and a first rotating shaft (24) rotatably disposed between the left and right end walls. The housing (12) is provided with a first mounting hole (51), a second mounting hole (52) and a third mounting hole (53). The housing (12) is provided with a bearing assembly rotatably connected to the third rotating shaft (16), the second rotating shaft (18) and the first rotating shaft (24). A transmission gear assembly is provided between the third rotating shaft (16), the second rotating shaft (18) and the first rotating shaft (24) to realize power output. The third rotating shaft (16) rotatably extends out of the housing (12). A cover plate (11) is fixedly connected to the left side of the housing (12), and the cover plate (11) covers and seals the first mounting hole (51), the second mounting hole (52) and the third mounting hole (53); The bottom of the housing (12) is connected and fixed with a bottom cover (21), and the cover plate (11) and the bottom cover (21) are detachable structures.

2. The lifting reducer according to claim 1, characterized in that: The bearing assembly includes a first bearing (17) and a second bearing (28) rotatably disposed on the outer surface of the third rotating shaft (16). The first bearing (17) and the second bearing (28) are mounted and fixed in bearing seat holes corresponding to the third rotating shaft (16). A third bearing (29) is also rotatably disposed on the outer surface of the third rotating shaft (16). The third bearing (29) is mounted and fixed in the bearing seat hole corresponding to the third rotating shaft (16).

3. The lifting reducer according to claim 2, characterized in that: The bearing assembly also includes a fourth bearing (19) and a fifth bearing (33) rotatably disposed on the outer surface of the second shaft (18), the fourth bearing (19) and the fifth bearing (33) being mounted and fixed in bearing seat holes corresponding to the second shaft (18).

4. A lifting reducer according to claim 3, characterized in that: The bearing assembly also includes two sixth bearings (25) rotatably disposed on the outer surface of the first rotating shaft (24), the sixth bearings (25) being mounted and fixed in bearing seat holes corresponding to the first rotating shaft (24).

5. A lifting reducer according to claim 4, characterized in that: A connecting bearing seat (41) is fixed inside the housing (12). The connecting bearing seat (41) has a bearing seat hole opposite to the first rotating shaft (24). The sixth bearing (25) is installed and fixed in the bearing seat hole.

6. A lifting reducer according to any one of claims 1-5, characterized in that: A motor (13) is fixed on the right side of the housing (12). The output shaft of the motor (13) extends into the housing (12). A first gear (22) is fixed on the outer surface of the output shaft of the motor (13). A seventh gear (15) is fixed at the end of the third rotating shaft (16).

7. A lifting reducer according to claim 6, characterized in that: The transmission gear assembly includes a third gear (23) and a second gear (32) fixed to the outer surface of the first rotating shaft (24), the second gear (32) meshing with the first gear (22), a fifth gear (26) and a fourth gear (31) fixed to the outer surface of the second rotating shaft (18), the fourth gear (31) meshing with the third gear (23), and a sixth gear (27) fixed to the outer surface of the third rotating shaft (16), the sixth gear (27) meshing with the fifth gear (26).

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