Speed reducer with heat dissipation and protection effects

Abstract

The utility model relates to a speed reducer with both heat dissipation and protection effects, which comprises a speed reducer shell and a main body assembly, the main body assembly comprises a bearing seat, a plurality of reduction gears, a worm and a worm gear, the outer side of the speed reducer shell is fixedly connected with a servo motor, the worm is fixedly connected to an output shaft of the servo motor, and the worm is fixedly connected to the output shaft of the servo motor. A damp-proof seat is fixedly connected to the lower end of the speed reducer shell, movable heat dissipation assemblies are symmetrically arranged on the portions, on the two sides of the speed reducer shell, of the damp-proof seat, a plurality of upper heat dissipation holes are formed in the upper end of the speed reducer shell, and a shielding mechanism is arranged on the portion, above the upper heat dissipation holes, of the speed reducer shell in a matched mode. Through cooperation of the movable heat dissipation assembly and the shielding mechanism, snakes, insects and other small animals cannot enter the speed reducer shell through the upper heat dissipation holes and the lower heat dissipation holes to damage the main body assembly.

Description

Technical Field

[0001] The utility model relates to the field of speed reducers, in particular to a speed reducer which takes both heat dissipation and protection effects into consideration. Background Art

[0002] The reducer is an independent component enclosed in a rigid housing, consisting of gear transmission, worm transmission, and gear-worm transmission. It is often used as a reduction transmission device between the prime mover and the working machine. It plays the role of matching speed and transmitting torque between the prime mover and the working machine or actuator, and is widely used in modern machinery.

[0003] During operation, the gears in the reducer generate heat due to friction, which causes the temperature inside the reducer to rise. The gears, worms and worm wheels in the reducer work in a high temperature environment for a long time, which will accelerate the aging speed of the above components and affect their service life. In response to this, many manufacturers will open several heat dissipation holes on the reducer housing to assist the gears and worms in heat dissipation.

[0004] However, the heat dissipation holes on the existing reducer housing usually have no covering mechanism. The heat dissipation holes are still exposed when the reducer is idle. In some warm and humid areas, there are usually many small animals such as snakes and insects. These small animals can easily enter the reducer housing through the heat dissipation holes and stay between the gear and the worm when the reducer is idle. If the operator opens the reducer without knowing it, it is easy to cause the reducer to malfunction, affecting the operating efficiency. Utility Model Content

[0005] The utility model provides a reducer which takes both heat dissipation and protection effects into consideration, and solves the above-mentioned problems existing in the use process of the prior art.

[0006] The technical solution of the utility model is achieved as follows: a reducer that takes into account both heat dissipation and protection effects, including a reducer housing and a main component, the main component including a bearing seat, a plurality of reduction gears, a worm and a worm wheel, the outer side of the reducer housing is fixedly connected to a servo motor, the worm is fixedly connected to the output shaft of the servo motor, the lower end of the reducer housing is fixedly connected to a moisture-proof seat, the moisture-proof seat is symmetrically provided with movable heat dissipation components on both sides of the reducer housing, the upper end of the reducer housing is provided with a plurality of upper heat dissipation holes, and the reducer housing is provided with a shielding mechanism above the upper heat dissipation holes.

[0007] The utility model is further configured as follows: the movable heat dissipation assembly includes a heat dissipation seat and a shielding seat, the heat dissipation seat is fixedly connected to the lower end side wall of the reducer housing, a sliding groove is opened in the heat dissipation seat, and the shielding seat is slidably connected in the sliding groove.

[0008] The utility model is further configured as follows: a plurality of lower heat dissipation holes are opened on the side wall of the heat dissipation seat, a ventilation groove is opened through the axial direction of the shielding seat, the shielding seat is in contact with the bottom of the heat dissipation seat, and the side wall of the shielding seat covers the lower heat dissipation holes.

[0009] The utility model is further configured as follows: a sliding plate is fixedly connected to the outer side of the lower wall of the shielding seat, a movable groove is opened on the moisture-proof seat, the sliding plate is slidably connected in the movable groove, limiting sliding blocks are symmetrically arranged at both ends of the sliding plate, the moisture-proof seat has limiting grooves symmetrically opened on both sides of the movable groove, and the limiting sliding blocks are slidably connected in the limiting grooves.

[0010] The utility model is further configured as follows: a dual-axis servo motor is fixedly installed on one side of the reducer housing of the moisture-proof seat, a first transmission screw is fixedly connected to the output shaft of the dual-axis servo motor, a first threaded hole is opened on the shielding seat, and the shielding seat is threadedly connected to the first transmission screw through the first threaded hole.

[0011] The utility model is further configured as follows: the shielding mechanism includes a first shielding plate, a second shielding plate, positive and negative screw rods and a limit rod, the positive and negative screw rods and the limit rod are symmetrically arranged on both sides of the upper heat dissipation hole, the first shielding plate and the second shielding plate are both slidably connected to the limit rod, the first shielding plate and the second shielding plate are both provided with a second threaded hole, and the first shielding plate and the second shielding plate are both threadedly connected to both sides of the positive and negative screw rods through the second threaded holes.

[0012] The utility model is further configured as follows: a single-axis servo motor is fixedly connected to the reducer housing, a transmission gear is fixedly connected to the output shaft of the single-axis servo motor, a rotating gear is fixedly connected to one side of the forward and reverse screw rods, and a synchronous belt is arranged between the transmission gear and the rotating gear.

[0013] In summary, the beneficial effects of the utility model are:

[0014] When the reducer is in an idle state, the shielding mechanism on the upper heat dissipation hole will completely cover the upper heat dissipation hole, and the shielding seat will completely extend into the heat dissipation seat to fully cover the lower heat dissipation hole on the heat dissipation seat, thereby preventing small animals such as snakes and insects from entering the reducer housing through the upper and lower heat dissipation holes and causing damage to the main components. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the isometric cross-section structure of the utility model;

[0018] Figure 3 for Figure 2 A partial enlarged schematic diagram in the middle;

[0019] Figure 4 This is a schematic diagram of the structure of the utility model after removing the shielding seat;

[0020] Figure 5 for Figure 4 A partial enlarged schematic diagram of point B in the middle;

[0021] Figure 6 This is a schematic diagram of the structure of the shielding seat in the utility model;

[0022] Figure 7 for Figure 4 Schematic diagram of the structure after removing the first shielding plate, the second shielding plate, the shielding seat and the synchronous belt;

[0023] Figure 8 for Figure 7 A partial enlarged schematic diagram of point C in the middle;

[0024] Fig. 9 It is a schematic structural diagram of the first shielding plate in the utility model.

[0025] Numbers in the figure: 1 reducer housing, 2 moisture-proof seat, 21 movable groove, 22 limit groove, 3 upper heat dissipation hole, 4 heat dissipation seat, 41 sliding groove, 42 lower heat dissipation hole, 5 shielding seat, 51 ventilation groove, 52 sliding plate, 53 limit slider, 54 first threaded hole, 6 dual-axis servo motor, 61 first transmission screw, 71 first shielding plate, 72 second shielding plate, 73 positive and negative screws, 74 limit rod, 75 second threaded hole, 8 single-axis servo motor, 9 transmission gear, 10 rotating gear, 11 synchronous belt. DETAILED DESCRIPTION

[0026] The following will be combined with the attached embodiment of the utility model Figure 1-9, clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example:

[0028] like Figures 1 to 9 As shown, the utility model discloses a reducer that takes into account both heat dissipation and protection effects, including a reducer housing 1 and a main component, the main component including a bearing seat, a plurality of reduction gears, a worm and a worm wheel, the outer side of the reducer housing 1 is fixedly connected to a servo motor, the worm is fixedly connected to the output shaft of the servo motor, the lower end of the reducer housing 1 is fixedly connected to a moisture-proof seat 2, the moisture-proof seat 2 is symmetrically provided with movable heat dissipation components on both sides of the reducer housing 1, a plurality of upper heat dissipation holes 3 are opened at the upper end of the reducer housing 1, and the reducer housing 1 is provided with a shielding mechanism above the upper heat dissipation holes 3.

[0029] Among them, the movable heat dissipation component includes a heat dissipation seat 4 and a shielding seat 5. The specific structure of the movable heat dissipation component is: the heat dissipation seat 4 is fixedly connected to the lower end side wall of the reducer housing 1, and a sliding groove 41 is opened in the heat dissipation seat 4, and the shielding seat 5 is slidably connected in the sliding groove 41; further, a plurality of lower heat dissipation holes 42 are opened on the side wall of the heat dissipation seat 4, and a ventilation groove 51 is opened axially through the shielding seat 5. When the shielding seat 5 is fully extended into the heat dissipation seat 4, the shielding seat 5 contacts the bottom of the heat dissipation seat 4, and the side wall of the shielding seat 5 covers the lower heat dissipation holes 42.

[0030] As attached Figure 6 As shown, the shielding seat 5 has only one air outlet, namely the air vent 51. When the shielding seat 5 is fully extended into the heat sink 4, the heat dissipation hole is blocked by the shielding seat 5, and the shielding seat 5 is supported against the bottom wall of the heat sink 4 without a hole, so that the shielding seat 5 and the heat sink 4 are in a sealed state. When the reducer is in an idle state, small animals such as snakes and insects cannot enter the reducer through the heat sink 4 to damage the main components.

[0031] Furthermore, a sliding plate 52 is fixedly connected to the outer side of the lower wall of the shielding seat 5, a movable groove 21 is opened on the moisture-proof seat 2, and the sliding plate 52 is slidably connected in the movable groove 21. Limiting sliders 53 are symmetrically arranged at both ends of the sliding plate 52, and the moisture-proof seat 2 has limiting grooves 22 symmetrically opened on both sides of the movable groove 21, and the limiting sliders 53 are slidably connected in the limiting grooves 22; and, the moisture-proof seat 2 is fixedly installed with a dual-axis servo motor 6 on one side of the reducer housing 1 as a power source for moving the shielding seat 5, and the output shafts of the dual-axis servo motors 6 are fixedly connected with a first transmission screw 61, and a first threaded hole 54 is opened on the shielding seat 5, and the shielding seat 5 is threadedly connected to the first transmission screw 61 through the first threaded hole 54.

[0032] The working principle of the above structure is: the limit groove 22 and the limit slider 53 can limit the movement trajectory of the shielding seat 5 so that it can only move horizontally, and at the same time give the shielding seat 5 a certain supporting force to prevent the shielding seat 5 from falling from the heat sink 4 when it is in a state of partially extending out of the heat sink 4; when the reducer needs to dissipate heat during operation, the dual-axis servo motor 6 starts to operate and drives the shielding seats 5 on both sides to move outward, and the exposure degree of the lower heat dissipation hole 42 is determined according to the heat dissipation needs; when the reducer finishes working and no longer generates heat, the heat sink 4 is pushed back into the heat sink 4 to block the lower heat dissipation hole 42 to prevent snakes and insects from entering the reducer housing 1.

[0033] Furthermore, the shielding mechanism located above the upper heat dissipation hole 3 includes a first shielding plate 71, a second shielding plate 72 (the second shielding plate 71 has the same structure as the first shielding plate 72), a positive and negative threaded rod 73 and a limit rod 74, and its specific structure is: the positive and negative threaded rod 73 and the limit rod 74 are symmetrically arranged on both sides of the upper heat dissipation hole 3, respectively, the first shielding plate 71 and the second shielding plate 72 are slidably connected to the limit rod 74, the first shielding plate 71 and the second shielding plate 72 are both provided with a second threaded hole 75, and the first shielding plate 71 and the second shielding plate 72 are both threadedly connected to both sides of the positive and negative threaded rod 73 through the second threaded hole 75;

[0034] In addition, a single-axis servo motor 8 is fixedly connected to the reducer housing 1, a transmission gear 9 is fixedly connected to the output shaft of the single-axis servo motor 8, a rotating gear 10 is fixedly connected to one side of the forward and reverse screw rod 73, and a synchronous belt 11 is provided between the transmission gear 9 and the rotating gear 10. The single-axis servo motor 8 drives the forward and reverse screw rod 73 to rotate through the synchronous belt 11.

[0035] When the reducer is in an idle state, the first baffle plate 71 and the second baffle plate 72 completely cover the upper heat dissipation hole 3 to prevent dust above the reducer from falling into the reducer housing 1. When the reducer needs to dissipate heat during operation, since the thread directions on both sides of the positive and negative screw rods 73 are opposite, the first baffle plate 71 and the second baffle plate 72 will move towards each other and align toward the middle position of the positive and negative screw rods 73, exposing the upper heat dissipation hole 3 during the movement, thereby dissipating the heat of the main components in the reducer housing 1.

[0036] It should also be pointed out that the terms used in the present invention, such as "front", "rear", "vertical", "horizontal", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A reducer that takes into account both heat dissipation and protection effects, comprising a reducer housing (1) and a main body assembly, characterized in that: The main body component comprises a bearing seat, an output shaft, a plurality of reduction gears, a worm and a worm wheel, the output shaft is rotatably connected to the bearing seat, the worm wheel is fixedly connected to the output shaft, the outer side of the reducer housing (1) is fixedly connected to a servo motor, the worm is fixedly connected to the output shaft of the servo motor, the lower end of the reducer housing (1) is fixedly connected to a moisture-proof seat (2), the moisture-proof seat (2) is symmetrically provided with movable heat dissipation components on both sides of the reducer housing (1), the upper end of the reducer housing (1) is provided with a plurality of upper heat dissipation holes (3), and the reducer housing (1) is provided with a shielding mechanism above the upper heat dissipation holes (3).

2. A reducer with both heat dissipation and protection effects according to claim 1, characterized in that: The movable heat dissipation assembly comprises a heat dissipation seat (4) and a shielding seat (5); the heat dissipation seat (4) is fixedly connected to the lower end side wall of the reducer housing (1); a sliding groove (41) is provided in the heat dissipation seat (4); and the shielding seat (5) is slidably connected in the sliding groove (41).

3. A reducer with both heat dissipation and protection effects according to claim 2, characterized in that: A plurality of lower heat dissipation holes (42) are provided on the side wall of the heat dissipation seat (4), a ventilation groove (51) is provided through the axial direction of the shielding seat (5), the shielding seat (5) abuts against the bottom of the heat dissipation seat (4), and the side wall of the shielding seat (5) covers the lower heat dissipation holes (42).

4. A reducer with both heat dissipation and protection effects according to claim 2, characterized in that: A sliding plate (52) is fixedly connected to the outer side of the lower wall of the shielding seat (5); a movable groove (21) is provided on the moisture-proof seat (2); the sliding plate (52) is slidably connected in the movable groove (21); limiting sliding blocks (53) are symmetrically arranged at both ends of the sliding plate (52); the moisture-proof seat (2) has limiting grooves (22) symmetrically provided on both sides of the movable groove (21); and the limiting sliding blocks (53) are slidably connected in the limiting grooves (22).

5. The reducer with both heat dissipation and protection effects according to claim 2, characterized in that: The moisture-proof seat (2) is fixedly mounted with a dual-axis servo motor (6) on one side of the reducer housing (1); the output shafts of the dual-axis servo motor (6) are both fixedly connected with a first transmission screw (61); a first threaded hole (54) is formed on the shielding seat (5); and the shielding seat (5) is threadedly connected to the first transmission screw (61) via the first threaded hole (54).

6. A reducer with both heat dissipation and protection effects according to claim 1, characterized in that: The shielding mechanism comprises a first shielding plate (71), a second shielding plate (72), a positive and negative threaded rod (73) and a limiting rod (74); the positive and negative threaded rod (73) and the limiting rod (74) are symmetrically arranged on both sides of the upper heat dissipation hole (3); the first shielding plate (71) and the second shielding plate (72) are both slidably connected to the limiting rod (74); the first shielding plate (71) and the second shielding plate (72) are both provided with a second threaded hole (75); the first shielding plate (71) and the second shielding plate (72) are both threadedly connected to both sides of the positive and negative threaded rod (73) through the second threaded hole (75).

7. A reducer with both heat dissipation and protection effects according to claim 6, characterized in that: A single-axis servo motor (8) is fixedly connected to the reducer housing (1), a transmission gear (9) is fixedly connected to the output shaft of the single-axis servo motor (8), a rotating gear (10) is fixedly connected to one side of the forward and reverse screw rods (73), and a synchronous belt (11) is provided between the transmission gear (9) and the rotating gear (10).

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