High-sealing-performance multi-stage gear speed reducer

Abstract

The utility model provides a high-sealing-performance multi-stage gear speed reducer, which is suitable for the technical field of gear speed reducers, and adopts the scheme that the high-sealing-performance multi-stage gear speed reducer comprises a mounting shell, a first speed reduction rod, a second speed reduction rod, a third speed reduction rod, a first speed reduction gear and a second speed reduction gear, a first speed reduction rod, a second speed reduction rod and a third speed reduction rod are rotationally mounted in the mounting shell, and are sequentially arranged from top to bottom; by using the mounting shell, the first speed reduction rod, the second speed reduction rod, the third speed reduction rod, the first speed reduction gear and the second speed reduction gear, when lubricating oil is added into the speed reducer, filtering protection is carried out, particulate matter impurities are prevented from entering the speed reducer, and the sealing performance of the speed reducer is improved; the utility model is also applicable to the field of gear reducers.

Description

Technical Field

[0001] The utility model relates to the technical field of gear reducers, in particular to a high-sealability multi-stage gear reducer. Background Art

[0002] Gear reducers are widely used in the East my country region for the slewing mechanism of tower crane machinery. They are widely used in metallurgy, mining, lifting, transportation, cement, construction, chemical industry, textile, printing and dyeing, pharmaceutical and other fields.

[0003] After the gear reducer has been used for a period of time, it is necessary to add lubricating oil to the gear reducer to reduce the wear of the internal gears of the gear reducer and extend the service life of the gear reducer. However, when adding lubricating oil, the sealing performance of the oil filling hole is limited, resulting in particulate impurities entering the gear reducer from the oil filling hole. The particulate impurities accelerate the wear of the gears and even cause the gear reducer to fail to operate normally.

[0004] Therefore, it is necessary to provide a new high-seal multi-stage gear reducer to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a high-sealing multi-stage gear reducer.

[0006] The utility model provides a high-seal multi-stage gear reducer comprising: a mounting shell, a first reduction rod, a second reduction rod, a third reduction rod, a first reduction gear and a second reduction gear, wherein the first reduction rod, the second reduction rod and the third reduction rod are rotatably mounted inside the mounting shell, the first reduction rod, the second reduction rod and the third reduction rod are arranged in the order of the first reduction rod, the second reduction rod and the third reduction rod from top to bottom, and the outer rings of the bearings of the first reduction rod, the second reduction rod and the third reduction rod are fixed to the circular inner wall of the mounting shell, the surfaces of the first reduction rod and the second reduction rod are fixedly connected with the first reduction gear, the surfaces of the second reduction rod and the third reduction rod are fixedly connected with the first reduction gear, and the surfaces of the second reduction rod and the third reduction rod are fixedly connected with the first reduction gear. A second reduction gear is fixedly connected, the first reduction gear on the surface of the first reduction rod is meshed with the second reduction gear on the surface of the second reduction rod, and the first reduction gear on the surface of the second reduction rod is meshed with the second reduction gear on the surface of the third reduction rod, the motor output shaft is connected to the end of the first reduction rod away from the mounting shell, driving the first reduction rod to rotate, the teeth of the first reduction gear on the surface of the first reduction rod contact the teeth of the second reduction gear on the surface of the second reduction rod, driving the second reduction rod to rotate, the teeth of the first reduction gear on the surface of the second reduction rod contact the teeth of the second reduction gear on the surface of the third reduction rod, driving the third reduction rod to rotate, and performing reduction transmission.

[0007] Preferably, the first filter plate is symmetrically arranged on the left side of the first deceleration rod and the second deceleration rod, and the side surface of the first filter plate is fixedly connected to the circular inner wall of the mounting shell; the first sealing gasket is sleeved on the left side of the third deceleration rod, and the side surface of the first sealing gasket is fixedly connected to the circular inner wall of the mounting shell; the first filter plate filters and protects the bearing gap on the left side of the first deceleration rod and the second deceleration rod, preventing the entry into the mounting shell through the bearing gap; the first sealing gasket seals and protects the bearing on the left side of the third deceleration rod, thereby increasing the sealing performance of the mounting shell.

[0008] Preferably, the second filter plates are symmetrically arranged on the right sides of the second deceleration rod and the third deceleration rod, and the side sides of the second filter plates are fixedly connected to the circular inner wall of the mounting shell; the second sealing gasket is sleeved on the right side of the first deceleration rod, and the side sides of the second sealing gasket are fixedly connected to the circular inner wall of the mounting shell; the second filter plates filter and protect the bearing gaps on the right sides of the second deceleration rod and the third deceleration rod, preventing the entry into the mounting shell through the bearing gaps; the second sealing gasket seals and protects the bearing on the right side of the third deceleration rod, thereby increasing the sealing performance of the mounting shell.

[0009] Preferably, an oil filling seat is fixedly connected to the top of the mounting shell, and the circular groove of the oil filling seat is connected to the circular groove of the mounting shell, an adjusting plate is slidably connected to the inner wall of the rectangular groove of the oil filling seat, snap seats are symmetrically provided on both sides of the oil filling seat, and the bottom of the snap seat is fixedly connected to the top of the mounting shell, and a third filter plate is fixedly connected to the circular inner wall of the adjusting plate, and the adjusting plate is pulled, and the adjusting plate slides along the inner wall of the rectangular groove of the oil filling seat, and the circular hole of the adjusting plate is aligned with the circular groove of the oil filling seat. When the lubricating oil is added, the third filter plate prevents particulate matter and impurities from entering the interior of the mounting shell.

[0010] Preferably, three positioning grooves are equidistantly provided on the surface of the adjustment plate, and two inner walls of the buckle seats are slidably connected with buckle blocks. Reset springs are symmetrically fixedly connected to the bottoms of the two buckle blocks, and the side of the reset spring away from the buckle block is fixedly connected to the inner wall of the buckle seat. When lubricating oil needs to be injected, the circular hole of the adjustment plate is aligned with the circular groove of the oil filling seat, and the buckle block enters the positioning groove. When the oil filling seat needs to be re-sealed, the buckle block is pressed to enter the buckle seat, and the buckle block squeezes the reset spring to contract, and the adjustment plate is pulled, and the plane of the adjustment plate moves to the position of the circular groove of the oil filling seat to seal the oil filling seat. The reset spring resets and opens, and the buckle block is sent into the positioning groove to limit the adjustment plate.

[0011] Preferably, the top edge of the buckle block is provided with a rounded corner to reduce the friction at the top edge of the buckle block and reduce the wear on the inner wall of the positioning groove when the buckle block enters the positioning groove.

[0012] Compared with the related art, the high-seal multi-stage gear reducer provided by the utility model has the following beneficial effects:

[0013] The utility model provides a high-sealing multi-stage gear reducer:

[0014] 1. By using the mounting shell, the first reduction rod, the second reduction rod, the third reduction rod, the first reduction gear and the second reduction gear, filtering protection is performed when adding lubricating oil to the reducer to prevent particulate matter and impurities from entering the reducer, thereby improving the sealing performance of the reducer.

[0015] 2. An oil filling seat is fixedly connected to the top of the mounting shell, and the circular groove of the oil filling seat is connected to the circular groove of the mounting shell. An adjusting plate is slidably connected to the inner wall of the rectangular groove of the oil filling seat. Buckle seats are symmetrically arranged on both sides of the oil filling seat, and the bottom of the buckle seat is fixedly connected to the top of the mounting shell. A third filter plate is fixedly connected to the circular inner wall of the adjusting plate. The adjusting plate is pulled, and the adjusting plate slides along the inner wall of the rectangular groove of the oil filling seat. The circular hole of the adjusting plate is aligned with the circular groove of the oil filling seat. When the lubricating oil is added, the third filter plate prevents particulate matter and impurities from entering the interior of the mounting shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The overall structural diagram provided by the utility model;

[0017] Figure 2 This is one of the cross-sectional schematic diagrams of the installation shell provided by the utility model;

[0018] Figure 3 The second cross-sectional schematic diagram of the installation shell provided by the utility model;

[0019] Figure 4 This is a cross-sectional schematic diagram of the buckle seat provided by the utility model.

[0020] Numbers in the figure: 1, mounting shell; 2, first reduction rod; 3, second reduction rod; 4, third reduction rod; 5, first reduction gear; 6, second reduction gear; 7, first filter plate; 8, first sealing gasket; 9, second filter plate; 10, second sealing gasket; 11, oil filling seat; 12, adjustment plate; 13, buckle seat; 14, third filter plate; 15, positioning groove; 16, buckle block; 17, return spring. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4The high-sealing multi-stage gear reducer comprises: a mounting shell 1, a first reduction rod 2, a second reduction rod 3, a third reduction rod 4, a first reduction gear 5 and a second reduction gear 6. The first reduction rod 2, the second reduction rod 3 and the third reduction rod 4 are rotatably mounted inside the mounting shell 1. The first reduction rod 2, the second reduction rod 3 and the third reduction rod 4 are arranged in the order of the first reduction rod 2, the second reduction rod 3 and the third reduction rod 4 from top to bottom, and the outer rings of the bearings of the first reduction rod 2, the second reduction rod 3 and the third reduction rod 4 are fixed to the circular inner wall of the mounting shell 1. The surfaces of the first reduction rod 2 and the second reduction rod 3 are fixedly connected with the first reduction gear 5. The surfaces of the second reduction rod 3 and the third reduction rod 4 are fixedly connected with the first reduction gear 5. A second reduction gear 6 is connected, the first reduction gear 5 on the surface of the first reduction rod 2 is meshed with the second reduction gear 6 on the surface of the second reduction rod 3, and the first reduction gear 5 on the surface of the second reduction rod 3 is meshed with the second reduction gear 6 on the surface of the third reduction rod 4, the motor output shaft is connected to the end of the first reduction rod 2 away from the mounting shell 1, driving the first reduction rod 2 to rotate, the teeth of the first reduction gear 5 on the surface of the first reduction rod 2 contact the teeth of the second reduction gear 6 on the surface of the second reduction rod 3, driving the second reduction rod 3 to rotate, the teeth of the first reduction gear 5 on the surface of the second reduction rod 3 contact the teeth of the second reduction gear 6 on the surface of the third reduction rod 4, driving the third reduction rod 4 to rotate, and performing reduction transmission.

[0023] Embodiment 1:

[0024] In the specific implementation process, Figure 2 As shown, the first filter plate 7 is symmetrically arranged on the left side of the first deceleration rod 2 and the second deceleration rod 3, and the side of the first filter plate 7 is fixedly connected to the circular inner wall of the mounting shell 1, and the first sealing gasket 8 is sleeved on the left side of the third deceleration rod 4, and the side of the first sealing gasket 8 is fixedly connected to the circular inner wall of the mounting shell 1. The first filter plate 7 filters and protects the bearing gaps on the left sides of the first deceleration rod 2 and the second deceleration rod 3 to prevent entering the interior of the mounting shell 1 through the bearing gaps. The first sealing gasket 8 seals and protects the bearing on the left side of the third deceleration rod 4, thereby increasing the sealing performance of the mounting shell 1.

[0025] refer to Figure 3 As shown, the second filter plates 9 are symmetrically arranged on the right sides of the second reduction rod 3 and the third reduction rod 4, and the side of the second filter plate 9 is fixedly connected to the circular inner wall of the mounting shell 1. The second sealing gasket 10 is sleeved on the right side of the first reduction rod 2, and the side of the second sealing gasket 10 is fixedly connected to the circular inner wall of the mounting shell 1. The second filter plate 9 filters and protects the bearing gaps on the right sides of the second reduction rod 3 and the third reduction rod 4 to prevent entering the interior of the mounting shell 1 through the bearing gaps. The second sealing gasket 10 seals and protects the bearing on the right side of the third reduction rod 4, thereby increasing the sealing performance of the mounting shell 1.

[0026] refer to Figure 1 and Figure 4 As shown, an oil filling seat 11 is fixedly connected to the top of the mounting shell 1, and the circular groove of the oil filling seat 11 is communicated with the circular groove of the mounting shell 1, an adjusting plate 12 is slidably connected to the inner wall of the rectangular groove of the oil filling seat 11, buckle seats 13 are symmetrically arranged on both sides of the oil filling seat 11, and the bottom of the buckle seat 13 is fixedly connected to the top of the mounting shell 1, and a third filter plate 14 is fixedly connected to the circular inner wall of the adjusting plate 12, and the adjusting plate 12 is pulled, and the adjusting plate 12 slides along the inner wall of the rectangular groove of the oil filling seat 11, and the circular hole of the adjusting plate 12 is aligned with the circular groove of the oil filling seat 11. When the lubricating oil is added, the third filter plate 14 prevents particulate matter and impurities from entering the interior of the mounting shell 1.

[0027] refer to Figure 4 As shown, three positioning grooves 15 are equidistantly provided on the surface of the adjusting plate 12, and two inner walls of the snap seats 13 are slidably connected with snap blocks 16, and the bottoms of the two snap blocks 16 are symmetrically fixedly connected with return springs 17, and the side of the return spring 17 away from the snap block 16 is fixedly connected to the inner wall of the snap seat 13. When lubricating oil needs to be injected, the circular hole of the adjusting plate 12 is aligned with the circular groove of the oil filling seat 11, and the snap block 16 enters the interior of the positioning groove 15. When the oil filling seat 11 needs to be resealed, the snap block 16 is pressed to enter the interior of the snap seat 13, and the snap block 16 squeezes the return spring 17 to contract, pulling the adjusting plate 12, and the plane of the adjusting plate 12 moves to the position of the circular groove of the oil filling seat 11 to seal the oil filling seat 11. The return spring 17 is reset and opened, and the snap block 16 is sent into the interior of the positioning groove 15 to limit the adjusting plate 12.

[0028] Embodiment 2:

[0029] refer to Figure 4 As shown, the top edge of the buckle block 16 is rounded to reduce the friction at the top edge of the buckle block 16 and reduce the wear on the inner wall of the positioning groove 15 when the buckle block 16 enters the positioning groove 15.

[0030] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A high-sealing multi-stage gear reducer, characterized in that: include: The mounting shell (1), the first reduction rod (2), the second reduction rod (3), the third reduction rod (4), the first reduction gear (5) and the second reduction gear (6), wherein the first reduction rod (2), the second reduction rod (3) and the third reduction rod (4) are rotatably mounted inside the mounting shell (1), and the first reduction rod (2), the second reduction rod (3) and the third reduction rod (4) are arranged in the order of the first reduction rod (2), the second reduction rod (3) and the third reduction rod (4) from top to bottom, and the first reduction rod (2), the second reduction rod (3) and the third reduction rod (4) 4) The outer ring of the bearing is fixed to the circular inner wall of the mounting shell (1); the first reduction gear (5) is fixedly connected to the surface of the first reduction rod (2) and the second reduction rod (3); the second reduction gear (6) is fixedly connected to the surface of the second reduction rod (3) and the third reduction rod (4); the first reduction gear (5) on the surface of the first reduction rod (2) is meshed with the second reduction gear (6) on the surface of the second reduction rod (3); and the first reduction gear (5) on the surface of the second reduction rod (3) is meshed with the second reduction gear (6) on the surface of the third reduction rod (4).

2. The high-sealability multi-stage gear reducer according to claim 1, characterized in that: A first filter plate (7) is symmetrically arranged on the left side of the first deceleration rod (2) and the second deceleration rod (3), and the side surface of the first filter plate (7) is fixedly connected to the circular inner wall of the mounting shell (1); a first sealing gasket (8) is sleeved on the left side of the third deceleration rod (4), and the side surface of the first sealing gasket (8) is fixedly connected to the circular inner wall of the mounting shell (1).

3. The high-sealability multi-stage gear reducer according to claim 1, characterized in that: A second filter plate (9) is symmetrically arranged on the right side of the second deceleration rod (3) and the third deceleration rod (4), and the side of the second filter plate (9) is fixedly connected to the circular inner wall of the mounting shell (1); a second sealing gasket (10) is sleeved on the right side of the first deceleration rod (2), and the side of the second sealing gasket (10) is fixedly connected to the circular inner wall of the mounting shell (1).

4. The high-sealability multi-stage gear reducer according to claim 1, characterized in that: The top of the mounting shell (1) is fixedly connected to an oil filling seat (11), and the circular groove of the oil filling seat (11) is communicated with the circular groove of the mounting shell (1), an adjustment plate (12) is slidably connected to the inner wall of the rectangular groove of the oil filling seat (11), buckle seats (13) are symmetrically arranged on both sides of the oil filling seat (11), and the bottom of the buckle seat (13) is fixedly connected to the top of the mounting shell (1).

5. The high-sealability multi-stage gear reducer according to claim 4, characterized in that: A third filter plate (14) is fixedly connected to the circular inner wall of the adjustment plate (12).

6. The high-sealability multi-stage gear reducer according to claim 4, characterized in that: The surface of the adjustment plate (12) is provided with three equidistant positioning grooves (15); the inner walls of the two buckle seats (13) are slidably connected with buckle blocks (16); the bottoms of the two buckle blocks (16) are symmetrically fixedly connected with return springs (17); and the side of the return spring (17) away from the buckle blocks (16) is fixedly connected to the inner wall of the buckle seat (13).

7. The high-sealability multi-stage gear reducer according to claim 6, characterized in that: The top edge of the buckle block (16) is provided with a rounded corner.

Images