Speed reducer with three-stage transmission

Abstract

The utility model discloses a speed reducer with three-stage transmission, which comprises a speed reducer main body, the speed reducer main body comprises a case, one end of the case is fixedly provided with a driving motor through a fixing bolt, one end of the interior of the case is provided with a driven gear III, and the other end of the interior of the case is provided with a driven gear II; a shaft sleeve is fixedly mounted in the driven gear III through a fixing bolt; by designing an anti-shaking reinforcing mechanism, the end of an external driving shaft can penetrate through the interior of a connecting ring to be installed in interference fit with the interior of a shaft sleeve, an internal thread ring rotates and moves downwards in an internal thread groove, and three cambered surface clamping plates are stably extruded and moved by making contact with the outer surfaces of the cambered surface clamping plates through slope structures; and the three cambered surface clamping plates simultaneously extrude and are mounted on the outer surface of the driving shaft to assist in reinforcing and mounting, so that reinforcing, mounting and stable driving between the speed reducer main body and the external driving shaft are facilitated, a friction gap is not easy to generate when the speed reducer main body is subjected to torsion during long-time driving, and the driving operation is stable.

Description

Technical Field

[0001] This utility model belongs to the field of speed reducer technology, specifically relating to a speed reducer with three-stage transmission. Background Technology

[0002] The existing speed reducer is an independent component consisting of gear transmission, worm transmission, and gear-worm transmission enclosed in a rigid housing. It is commonly used as a speed reduction transmission device between the prime mover and the working machine, and achieves three-stage transmission during transmission, with high transmission efficiency and strong load-bearing capacity.

[0003] When existing speed reducers are connected to equipment for driving, the drive shaft end of the external equipment is fixedly installed inside the bushing via spline engagement. Therefore, it is not convenient to reinforce the speed reducer after installation. This causes torque and friction gaps between the splines when the drive is under force after installation. Over time, the torque gaps increase, leading to serious instability and even shaking, which affects the driving effect and safety of the speed reducer. This also affects the reinforcement and fixation of the speed reducer and the bushing after installation. Therefore, this utility model proposes a speed reducer with three-stage transmission. Utility Model Content

[0004] The purpose of this utility model is to provide a speed reducer with three-stage transmission to solve the problem mentioned in the background art. The speed reducer is fixedly installed inside the bushing by spline engagement with the end of the equipment drive shaft. Therefore, it is not convenient to reinforce it after fixed installation. When the drive is subjected to torque after installation, the splines are subjected to force and friction gaps. Over time, the gaps become larger and larger due to the torque, causing serious instability and even shaking, which affects the driving effect and safety of the speed reducer.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a reducer with three-stage transmission, comprising a reducer body, the reducer body including a housing, a drive motor fixedly mounted at one end of the housing by fixing bolts, a driven gear three being provided at one end inside the housing, a bushing fixedly mounted inside the driven gear three by fixing bolts, and the end of the bushing fitting with the surface of the housing, the reducer body also being provided with:

[0006] An anti-sway reinforcement mechanism is provided, and the anti-sway reinforcement mechanism includes an integrally mounted mounting assembly at both ends of the bushing. An anti-sway reinforcement assembly is provided at the inner edge of the mounting assembly. A sliding control assembly is provided at the bottom end of the anti-sway reinforcement assembly. A rotary extrusion assembly is provided on the surface of the anti-sway reinforcement assembly located on the end surface of the mounting assembly.

[0007] An adsorption and collection mechanism is provided, and the adsorption and collection mechanism includes an adsorption and collection component disposed at the bottom of the inside of the casing, wherein the end of the adsorption and collection component is provided with a sealing and fixing component.

[0008] Preferably, the bottom of the chassis is equipped with a ring-shaped worm gear that meshes with the driven gear via a bearing. The end of the ring-shaped worm gear is fitted with a driven gear two via an interference fit. One side of the driven gear two is located inside the chassis and is fitted with a gear shaft that meshes with the driven gear two via a bearing. The end of the gear shaft is fitted with a driven gear one via an interference fit. The end of the drive motor is located inside the chassis and is fixedly equipped with a driving gear, which meshes with the driven gear one.

[0009] Preferably, the mounting assembly includes a connecting ring integrally disposed at the end of the bushing, and the connecting ring has an internal thread groove at the surface edge.

[0010] Preferably, the anti-sway reinforcement component includes three limiting grooves equidistantly opened at the bottom of the internal thread groove located inside the connecting ring, and the limiting groove is provided with an arc-shaped clamp plate inside, and the inner surface of the arc-shaped clamp plate is provided with anti-slip texture.

[0011] Preferably, the sliding control component includes a control slider integrally disposed at the bottom end of the arc-shaped clamping plate, and a control groove that slides with the control slider is provided at the bottom end of the limiting groove.

[0012] Preferably, the rotary extrusion assembly includes an internally threaded ring threaded into the internally threaded groove, the bottom end of the inner surface of the internally threaded ring having a beveled structure, and the surface of the beveled structure being in contact with the outer surface of the arc-shaped clamping plate, and the upper surface of the internally threaded ring having an internal hexagonal hole.

[0013] Preferably, the adsorption and collection assembly includes an installation port at the bottom of the chassis, through which a storage box extends to the bottom of the chassis, and an adsorption magnet is installed at the bottom of the storage box by screws.

[0014] Preferably, the sealing and fixing assembly includes a sealing gasket fitted onto the surface of the storage box, an installation bolt threaded to the end of the mounting port, and an internal threaded hole matching the installation bolt at the end of the mounting port.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] By designing an anti-sway reinforcement mechanism, the end of the external drive shaft can be inserted through the inside of the connecting ring and installed with the inside of the bushing via an interference fit. The internal threaded ring rotates and moves downward inside the internal threaded groove, and through the inclined structure, it contacts the outer surface of the arc-shaped clamping plate, which stably presses and moves the three arc-shaped clamping plates. The three arc-shaped clamping plates simultaneously press and install the drive shaft on the outer surface for auxiliary reinforcement installation, thereby facilitating the reinforcement and stable installation between the reducer body and the external drive shaft for drive use. When the drive is subjected to torque for a long time, it is not easy to generate friction gaps, stabilizes drive operation, and improves the auxiliary reinforcement and fixation of the drive shaft and bushing when the reducer body is installed and used. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the three-stage transmission structure of this utility model;

[0019] Figure 3 This utility model Figure 1 Enlarged structural diagram of section A;

[0020] Figure 4 This is a cross-sectional view of the connecting ring, internal threaded ring, and arc-shaped clamping plate of this utility model.

[0021] Figure 5 This is a schematic diagram of the internal threaded ring, internal hexagonal hole, and inclined surface structure of this utility model;

[0022] Figure 6 This utility model Figure 1 Enlarged structural diagram of section B;

[0023] Figure 7 This is a partial cross-sectional view of the storage box, the adsorption magnet, and the installation state of the bottom of the internal casing of this utility model.

[0024] In the diagram: 100, reducer body; 101, housing; 1011, mounting port; 1012, storage box; 1013, sealing gasket; 1014, mounting bolt; 1015, internal threaded hole; 1016, magnetic magnet; 102, bushing; 1021, connecting ring; 1022, internal threaded ring; 1023, arc-shaped clamping plate; 1024, internal threaded groove; 1025, internal hexagonal hole; 1026, inclined structure; 1027, limiting groove; 1028, control slide; 1029, control slider; 103, drive motor; 104, driven gear three; 105, driving gear; 106, driven gear one; 107, gear shaft; 108, driven gear two; 109, circumferential worm gear. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 7 This utility model provides a technical solution: a reducer with three-stage transmission, including a reducer body 100, the reducer body 100 including a housing 101, a drive motor 103 is fixedly installed at one end of the housing 101 by fixing bolts, a driven gear 104 is provided at one end inside the housing 101, a bushing 102 is fixedly installed inside the driven gear 104 by fixing bolts, and the end of the bushing 102 matches the surface of the housing 101;

[0027] Inside the chassis 101, at the bottom, a ring-shaped worm gear 109 is mounted via bearings, meshing with driven gear three 104. Driven gear two 108 is interference-fitted to the end of the ring-shaped worm gear 109. A gear shaft 107, meshing with driven gear two 108, is mounted via bearings on one side of driven gear two 108 inside the chassis 101. Driven gear one 106 is interference-fitted to the end of gear shaft 107. A drive gear 105 is fixedly mounted at the end of the drive motor 103 inside the chassis 101. This achieves the three... In three-stage transmission, when the gear shaft 107 rotates, it meshes with the outer surface of the driven gear 108, driving the annular envelope worm gear 109 to rotate. When the annular envelope worm gear 109 rotates, it meshes with the outer surface of the driven gear 104, driving the driven gear 104 to rotate the drive shaft connected to the bushing 102 and external equipment. At this time, multiple teeth mesh with each other between the annular envelope worm gear 109 and the driven gear 104, resulting in strong transmission power and higher transmission efficiency. This facilitates the realization of three-stage transmission to drive the drive shaft. The reducer body 100 is also equipped with:

[0028] The anti-sway reinforcement mechanism includes an integrally mounted mounting component at both ends of the bushing 102. An anti-sway reinforcement component is provided at the inner edge of the mounting component, and a sliding control component is provided at the bottom end of the anti-sway reinforcement component. A rotary pressing component is provided on the surface of the anti-sway reinforcement component located at the end surface of the mounting component. After the reducer body 100 is installed with the drive shaft of the external equipment, the anti-sway reinforcement mechanism can be used to assist in reinforcement, making the equipment more stable after installation.

[0029] In order to facilitate the installation and fixation of the arc-shaped clamp 1023 by means of the installation component, in this embodiment, preferably, the installation component includes a connecting ring 1021 integrally disposed at the end of the bushing 102. The connecting ring 1021 has an internal thread groove 1024 on its surface edge. After the drive shaft is installed through the interior of the connecting ring 1021, it can be rotated inside the internal thread groove 1024 to squeeze and adjust the internal thread ring 1022.

[0030] In order to facilitate the auxiliary reinforcement installation between the bushing 102 and the external drive shaft by means of the anti-sway reinforcement component, in this embodiment, preferably, the anti-sway reinforcement component includes three limiting grooves 1027 equidistantly opened at the bottom end of the internal thread groove 1024 located inside the connecting ring 1021. The limiting grooves 1027 are provided with arc-shaped clamping plates 1023, and the inner surface of the arc-shaped clamping plates 1023 is provided with anti-slip texture, so that the three arc-shaped clamping plates 1023 can be moved and pressed against the outer surface of the drive shaft at the same time for auxiliary reinforcement installation.

[0031] In order to facilitate the stable compression and movement of the curved clamping plate 1023 by means of the sliding control component, in this embodiment, preferably, the sliding control component includes a control slider 1029 integrally disposed at the bottom end of the curved clamping plate 1023, and a control groove 1028 that slides with the control slider 1029 is provided at the bottom end of the limiting groove 1027. The curved clamping plate 1023 can be controlled to slide within the control groove 1028 by the control slider 1029 when it moves, so that the curved clamping plate 1023 can be stably moved, clamped and fixed.

[0032] To facilitate the compression, movement, and reinforcement of the arc-shaped clamping plate 1023 using the rotary compression assembly, in this embodiment, preferably, the rotary compression assembly includes an internally threaded ring 1022 threadedly connected inside the internally threaded groove 1024. The bottom end of the inner surface of the internally threaded ring 1022 has a beveled structure 1026, and the surface of the beveled structure 1026 contacts the outer surface of the arc-shaped clamping plate 1023. The upper surface of the internally threaded ring 1022 has an internal hexagonal hole 1025. When a wrench is engaged inside the internal hexagonal hole 1025, the internally threaded ring 1022 rotates inside the internally threaded groove 1024. When the internally threaded ring 1022 rotates, the beveled structure 1026 contacts the surface of the arc-shaped clamping plate 1023, compressing and moving the arc-shaped clamping plate 1023, thus facilitating its movement, reinforcement, installation, and use.

[0033] The adsorption collection mechanism includes an adsorption collection component located at the bottom of the housing 101. The end of the adsorption collection component is provided with a sealing and fixing component. When the reducer body 100 is in operation after installation, the adsorption collection mechanism can adsorb and collect the iron filings generated inside the housing 101, which is convenient for regular cleaning.

[0034] In order to facilitate the adsorption and collection of iron filings generated inside the chassis 101 by means of an adsorption and collection component, in this embodiment, preferably, the adsorption and collection component includes a mounting port 1011 opened at the bottom of the chassis 101. A storage box 1012 extends through the interior of the mounting port 1011 to the bottom of the interior of the chassis 101. An adsorption magnet 1016 is installed at the bottom of the interior of the storage box 1012 by screws. The adsorption magnet 1016 can be fixed inside the storage box 1012. When iron filings are generated inside the chassis 101, they are adsorbed by the adsorption magnet 1016 and collected inside the storage box 1012.

[0035] To facilitate the sealing and fixing of the storage box 1012 using a sealing and fixing assembly, in this embodiment, preferably, the sealing and fixing assembly includes a sealing gasket 1013 fitted onto the surface of the storage box 1012, a mounting bolt 1014 threadedly connected to the end of the mounting opening 1011, and an internal threaded hole 1015 matching the mounting bolt 1014 at the end of the mounting opening 1011. The storage box 1012 can be sealed and installed by the sealing gasket 1013 after the end is closed, and the mounting bolt 1014 can be rotated again to insert into the internal threaded hole 1015 to fix the storage box 1012, which is convenient for fixed use and facilitates regular cleaning.

[0036] The working principle and usage process of this utility model: When using this type of reducer with three-stage transmission, the end of the drive shaft of the external equipment is first installed inside the bushing 102 through spline interference fit. When the drive motor 103 is powered on, it drives the drive gear 105 to rotate. When the drive gear 105 rotates, it meshes with the surface of the driven gear 106, driving the gear shaft 107 to rotate. When the gear shaft 107 rotates, it meshes with the outer surface of the driven gear 108, driving the worm gear 109 to rotate. When the worm gear 109 rotates, it meshes with the outer surface of the driven gear 104, driving the drive shaft connected to the bushing 102 and the external equipment to rotate, thus facilitating the three-stage transmission to drive the drive shaft operation.

[0037] Then, when the reducer body 100 is installed before use, the end of the external drive shaft passes through the inside of the connecting ring 1021 and is installed with an interference fit inside the bushing 102. After the snap-fit ​​installation, the wrench is snapped into the inside of the internal hexagonal hole 1025 to drive the internal thread ring 1022 to rotate and move down inside the internal thread groove 1024. When the internal thread ring 1022 is screwed in and moved down, it contacts the outer surface of the arc-shaped clamping plate 1023 through the inclined structure 1026 and presses and moves the arc-shaped clamping plate 1023. When the arc-shaped clamping plate 1023 moves, it drives the bottom end of the control slider 1029 to slide stably inside the control groove 1028. This allows the three arc-shaped clamping plates 1023 to press and install on the outer surface of the drive shaft at the same time to assist in the reinforcement installation. This facilitates the reinforcement installation between the reducer body 100 and the external drive shaft for stable drive use. When the drive is subjected to torque for a long time, it is not easy to generate friction gaps, stabilizes the drive operation, and improves the auxiliary reinforcement and fixation of the drive shaft and bushing 102 when the reducer body 100 is used after installation.

[0038] Finally, before using the reducer body 100, the adsorption magnet 1016 is fixed inside the storage box 1012. The storage box 1012 extends through the mounting port 1011 and is embedded into the bottom of the housing 101 until the end of the storage box 1012 and the end surface of the mounting port 1011 are sealed together by the sealing gasket 1013. The mounting bolt 1014 is rotated and inserted into the internal threaded hole 1015 to fix the storage box 1012 and the adsorption magnet 1016 to the bottom of the housing 101. When the reducer body 100 is driven for a long time inside the housing 101, friction will generate tiny iron filings, producing... The iron filings are directly attracted by the magnet 1016 and collected inside the collection box 1012. This convenient collection of iron filings reduces the risk of severe friction when they come into contact with the transmission components during operation. It also improves the ease of collecting iron filings inside the reducer body 100 during installation and use. The iron filings collected inside the collection box 1012 can be cleaned during regular lubrication oil changes. The magnetic force of the magnet 1016 is only needed to attract iron filings, and the internal transmission force is relatively large, so the magnetic force does not affect the internal transmission components, or even has a negligible impact.

[0039] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A speed reducer with three-stage transmission, comprising a speed reducer body (100), the speed reducer body (100) including a housing (101), a drive motor (103) being fixedly mounted at one end of the housing (101) by fixing bolts, a driven gear three (104) being provided at one end inside the housing (101), a bushing (102) being fixedly mounted inside the driven gear three (104) by fixing bolts, and the end of the bushing (102) fitting with the surface of the housing (101), characterized in that: The reducer body (100) is also provided with: An anti-sway reinforcement mechanism, comprising an integrally mounted mounting assembly at both ends of a bushing (102), an anti-sway reinforcement assembly at the inner edge of the mounting assembly, a sliding control assembly at the bottom end of the anti-sway reinforcement assembly, and a rotary extrusion assembly on the surface of the anti-sway reinforcement assembly located at the end surface of the mounting assembly. The adsorption and collection mechanism includes an adsorption and collection component disposed at the bottom of the casing (101), and the end of the adsorption and collection component is provided with a sealing and fixing component.

2. The speed reducer with three-stage transmission according to claim 1, characterized in that: The bottom of the housing (101) is fitted with a bearing to a ring-shaped worm gear (109) that meshes with a driven gear three (104). A driven gear two (108) is fitted with an interference fit at the end of the ring-shaped worm gear (109). A gear shaft (107) that meshes with the driven gear two (108) is fitted with a bearing inside the housing (101) on one side of the driven gear two (108). A driven gear one (106) is fitted with an interference fit at the end of the gear shaft (107). A drive gear (105) is fixedly installed inside the housing (101) at the end of the drive motor (103), and the drive gear (105) meshes with the driven gear one (106).

3. A speed reducer with three-stage transmission according to claim 1, characterized in that: The mounting assembly includes a connecting ring (1021) integrally disposed at the end of the bushing (102), and an internal thread groove (1024) is provided at the surface edge of the connecting ring (1021).

4. A speed reducer with three-stage transmission according to claim 3, characterized in that: The anti-sway reinforcement component includes three limiting grooves (1027) equidistantly opened at the bottom of the internal thread groove (1024) located inside the connecting ring (1021). The limiting groove (1027) is provided with an arc-shaped clamping plate (1023), and the inner surface of the arc-shaped clamping plate (1023) is provided with anti-slip texture.

5. A speed reducer with three-stage transmission according to claim 4, characterized in that: The sliding control component includes a control slider (1029) integrally disposed at the bottom end of the arc-shaped clamping plate (1023), and a control groove (1028) that slides with the control slider (1029) is provided at the bottom end of the inner side of the limiting groove (1027).

6. A speed reducer with three-stage transmission according to claim 4, characterized in that: The rotary extrusion assembly includes an internally threaded ring (1022) threaded inside an internally threaded groove (1024). The bottom end of the inner surface of the internally threaded ring (1022) has a bevel structure (1026), and the surface of the bevel structure (1026) is in contact with the outer surface of the arc-shaped clamping plate (1023). The upper surface of the internally threaded ring (1022) has an internal hexagonal hole (1025).

7. A speed reducer with three-stage transmission according to claim 1, characterized in that: The adsorption and collection assembly includes a mounting port (1011) at the bottom of the chassis (101), through which a storage box (1012) extends to the bottom of the chassis (101), and an adsorption magnet (1016) is installed at the bottom of the storage box (1012) by screws.

8. A speed reducer with three-stage transmission according to claim 7, characterized in that: The sealing and fixing assembly includes a sealing gasket (1013) fitted onto the surface of the storage box (1012), and a mounting bolt (1014) is threadedly connected to the end of the mounting port (1011). The end of the mounting port (1011) has an internal threaded hole (1015) that matches the mounting bolt (1014).

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