Dust-erosion-resistant gear motor for powder metallurgy

Abstract

The utility model relates to the technical field of gear motors, and discloses a powder metallurgy dust erosion resistant gear motor, which comprises a motor rear shell, a motor front shell and a rotating shaft, the motor front shell is fixedly connected with the motor rear shell through a flange, and one end, far away from the motor rear shell, of the motor front shell is rotatably connected with an output shaft through a bearing. According to the utility model, through the staggered matching design of the gears with different diameters, the decelerating motion is realized, and the sealing structure at the interface and the oil sealing structure of the output shaft are matched, so that the internal sealing performance is ensured, and dust is prevented from entering; the problems that an existing powder metallurgy gear motor is poor in internal sealing performance and complex in gear structure during use are solved, dust is prevented from entering the gear motor to affect rotation of the gear, meanwhile, the simple gear structure is more convenient for gear lubrication and maintenance, and the internal space of the motor is saved.

Description

Technical Field

[0001] The utility model application relates to the technical field of gear motors, in particular to a powder metallurgy gear motor resistant to dust erosion. Background Art

[0002] Gear motor refers to the integration of reducer and motor (motor). Gear motor or reduction motor is usually integrated and assembled by professional reducer manufacturers and supplied as a complete set. It is widely used in the reduction transmission mechanism of various general mechanical equipment such as metallurgy, mining, lifting, transportation, cement, construction, chemical industry, textile, printing and dyeing, pharmaceuticals, medical treatment, beauty, health massage, office supplies, etc.

[0003] When the gear motor is running, it achieves reduced rotation through the different diameters of the gears. However, since the gears need to maintain sufficient lubrication when rotating, there are gaps at the interface and the outer port of the motor, which makes it easy for dust to enter. At the same time, due to the complex internal gear structure, the gears in the motor are stuck after being attached to dust, affecting the normal operation of the motor. Summary of the invention

[0004] In order to solve the problems of poor internal sealing and complex gear structure of the existing powder metallurgy gear motor during use, the utility model provides a powder metallurgy dust-resistant gear motor to solve the above problems.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The gear motor of claim 1, wherein the gear is secured to the front of the motor with a flange configured to extend past the front of the motor and past the rear of the motor to allow the gear to move freely in the gearbox. The gear is secured to the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the front of the motor with a flange configured to extend past the

[0007] Furthermore, the opposite sides of the motor rear shell and the motor front shell are staggered with sealing grooves that cooperate with sealing rings and sealing rubber rings, and the sealing grooves on the sides of the sealing rings are glued and fixed with sealing rubber rings, and several sealing rings are arranged in a sleeve-like manner.

[0008] Furthermore, heat dissipation windows are symmetrically provided on opposite sides of the motor rear shell and the motor front shell of the outer ring of the rotating shaft, and dustproof nets are fixed inside the heat dissipation windows, and the heat dissipation windows are staggered with the rotating rod.

[0009] Furthermore, the outer ring diameter of gear one is smaller than the outer ring diameter of gear two, and the outer ring diameter of gear three is smaller than the outer ring diameter of gear four.

[0010] Furthermore, a guide tube is fixed inside the partition plate, and both ends of the bottom of the guide tube extend to the top of gear one and gear four, and the top of the guide tube extends to the outside of the front shell of the motor and is threadedly sleeved with a sealing cover.

[0011] Furthermore, a sealing rubber plug is fixed inside the sealing cover, and the sealing rubber plug is snap-fitted into the inside of the guide tube, a filter screen cup is arranged inside the guide tube at the bottom of the sealing rubber plug, and the bottom of the outer ring of the filter screen cup is hung on the fixing ring, the outer surface of the fixing ring is fixed on the inner wall of the guide tube, and a pull rod is fixed in the middle of the filter screen cup.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the utility model, the staggered matching design of gears of different diameters is used to achieve deceleration motion. At the same time, the sealing structure at the interface and the oil seal structure of the output shaft are matched to ensure internal sealing and prevent dust from entering. This solves the problems of poor internal sealing and complex gear structure of the existing powder metallurgy gear motor during use. While preventing dust from entering and affecting the rotation of the gears, the simple gear structure is also more convenient for gear lubrication and maintenance, saving internal space of the motor.

[0014] 2. In the utility model, through the oiling assembly on the top, the internal gears can be oiled and lubricated without disassembling the motor during maintenance, further preventing dust from entering during the disassembly and assembly process. At the same time, the air vents with dustproof nets on both sides can ensure the heat dissipation effect when the gears are running. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application 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 present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 is a front view schematic diagram of a gear motor structure according to an embodiment of the present application;

[0017] Figure 2 yes Figure 1A partial cross-sectional schematic diagram of the gear motor structure in the illustrated embodiment;

[0018] Figure 3 yes Figure 1 A schematic diagram of the internal cross-section of the sealing cover connection structure in the illustrated embodiment.

[0019] The meanings of the reference numerals in the figure are: 1. Motor rear housing; 2. Motor front housing; 3. Rotating shaft; 4. Output shaft; 5. Partition plate; 6. Rotating rod; 7. Gear 1; 8. Gear 2; 9. Gear 3; 10. Gear 4; 11. Sealing oil seal; 12. Sealing ring; 13. Sealing rubber ring; 14. Flow guide tube; 15. Sealing cover; 16. Heat dissipation window; 17. Sealing rubber plug; 18. Fixing ring; 19. Filter cup; 20. Pull rod. DETAILED DESCRIPTION

[0020] In order to make the purpose, features, and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0021] Reference Figure 1 and Figure 2A powder metallurgy dust-resistant gear motor comprises a motor rear shell 1, a motor front shell 2 and a rotating shaft 3. The motor rear shell 1 and the motor front shell 2 of the outer ring of the rotating shaft 3 are symmetrically provided with heat dissipation windows 16 on opposite sides thereof, and dust-proof nets are fixed inside the heat dissipation windows 16, and the heat dissipation windows 16 are staggered with the rotating rod 6. The motor front shell 2 is fixedly connected to the motor rear shell 1 through a flange, and the motor rear shell 1 and the motor front shell 2 are staggeredly provided with sealing grooves matched with sealing rings 12 and sealing rubber rings 13 on opposite sides thereof, and sealing rubber rings 13 are glued and fixed to the sealing grooves on the sides of the sealing rings 12, and a plurality of sealing rings 12 are arranged in a ring-like manner, and the end of the motor front shell 2 away from the motor rear shell 1 is rotatably connected with the output shaft 4 through a bearing, and the end of the rotating shaft 3 extending to the inside of the motor front shell 2 is fixed with a gear 7, and the outer ring of the gear 7 The diameter is smaller than the outer ring diameter of gear two 8, the outer ring diameter of gear three 9 is smaller than the outer ring diameter of gear four 10, and the bottom of gear one 7 is meshedly connected with gear two 8, gear two 8 is fixedly sleeved on the rotating rod 6, and the two ends of the rotating rod 6 are rotatably connected to the inside of the motor front housing 2 through bearings, gear three 9 is fixed on the rotating rod 6 on the side of gear two 8, and the top of gear three 9 is meshedly connected with gear four 10, gear four 10 is fixed to one end of the output shaft 4 extending to the inside of the motor front housing 2, two groups of sealing oil seals 11 are arranged inside the motor front housing 2 outside the output shaft 4, sealing rings 12 are staggeredly fixed on the opposite sides of the motor front housing 2 and the motor rear housing 1, a partition plate 5 is fixed on the inner wall of the motor front housing 2 between gear one 7 and gear four 10, and the opposite ends of the output shaft 4 and the rotating shaft 3 are rotatably connected to the partition plate 5 through bearings.

[0022] Specifically, when the motor is running, the shaft 3 rotates, driving the gear 1 7 to rotate, and the gear 1 7 then drives the meshing gear 2 8 to rotate, thereby achieving initial deceleration. The rotation of gear 2 8 synchronously drives gear 3 9 to rotate, and gear 3 9 drives the meshing gear 4 10 to rotate, thereby achieving secondary deceleration. When the output shaft 4 is rotating, the sealing oil seal 11 can prevent dust from entering the interior of the motor front housing 2 through the outside of the output shaft 4, and the sealing ring 12 and the sealing rubber ring 13 can prevent dust from entering from the contact surface between the motor rear housing 1 and the motor front housing 2.

[0023] As an optimization solution, Figure 3 As shown, a guide tube 14 is fixed inside the partition plate 5, and the two ends of the bottom of the guide tube 14 extend to the top of gear 1 7 and gear 4 10, the top of the guide tube 14 extends to the outside of the motor front shell 2 and is threadedly sleeved with a sealing cover 15, a sealing plug 17 is fixed inside the sealing cover 15, and the sealing plug 17 is snap-fitted into the guide tube 14, a filter cup 19 is provided inside the guide tube 14 at the bottom of the sealing plug 17, and the bottom of the outer ring of the filter cup 19 is hung on the fixing ring 18, the outer surface of the fixing ring 18 is fixed on the inner wall of the guide tube 14, and a pull rod 20 is fixed in the middle of the filter cup 19.

[0024] Specifically, when it is necessary to lubricate gear 1 7, gear 2 8, gear 3 9 and gear 4 10, the sealing cover 15 is screwed to release the fixation between the sealing cover 15 and the top of the guide tube 14, and the sealing plug 17 is pulled out from the inside of the guide tube 14, and the lubricating oil is poured in through the top of the guide tube 14. When pouring, it is filtered through the filter cup 19. The lubricating oil drips on gear 1 7 and gear 4 10 under the guidance of the guide tube 14. During the rotation and meshing process of gear 1 7 and gear 4 10, gear 2 8 and gear 3 9 are lubricated. When impurities are accumulated in the filter cup 19, the filter cup 19 can be pulled out by the pull rod 20 to clean the filter cup 19. After cleaning, the filter cup 19 is directly placed in the guide tube 14, and the sealing cover 15 is screwed to the guide tube 14 to fix it, and the sealing plug 17 is inserted into the guide tube 14 at the same time.

[0025] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0026] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A powder metallurgy dust erosion resistant gear motor, characterized in that: The motor comprises a rear housing (1), a front housing (2) and a rotating shaft (3), wherein the front housing (2) is fixedly connected to the rear housing (1) of the motor via a flange, and one end of the front housing (2) of the motor away from the rear housing (1) of the motor is rotatably connected to an output shaft (4) via a bearing, and one end of the rotating shaft (3) extending to the interior of the front housing (2) of the motor is fixedly connected to a gear 1 (7), and the bottom of the gear 1 (7) is meshingly connected to a gear 2 (8), and the gear 2 (8) is fixedly sleeved on a rotating rod (6), and both ends of the rotating rod (6) are rotatably connected to the interior of the front housing (2) of the motor via bearings, and the rotating rod (6) on the side of the gear 2 (8) is provided with a plurality of gears. A gear three (9) is fixed thereto, and a gear four (10) is meshedly connected to the top of the gear three (9), the gear four (10) being fixed to one end of the output shaft (4) extending to the inside of the motor front housing (2), two sets of sealing oil seals (11) are arranged inside the motor front housing (2) outside the output shaft (4), sealing rings (12) are staggeredly fixed on opposite sides of the motor front housing (2) and the motor rear housing (1), a partition plate (5) is fixed on the inner wall of the motor front housing (2) between the gear one (7) and the gear four (10), and the opposite ends of the output shaft (4) and the rotating shaft (3) are rotatably connected to the partition plate (5) through bearings.

2. The powder metallurgy dust erosion resistant gear motor according to claim 1, characterized in that: The opposite sides of the motor rear housing (1) and the motor front housing (2) are staggered with sealing grooves that cooperate with the sealing rings (12) and the sealing rubber rings (13), and the sealing grooves on the sides of the sealing rings (12) are all glued and fixed with the sealing rubber rings (13), and a plurality of sealing rings (12) are arranged in a ring-like manner.

3. The powder metallurgy dust erosion resistant gear motor according to claim 1, characterized in that: The motor rear housing (1) and the motor front housing (2) on the outer ring of the rotating shaft (3) are symmetrically provided with heat dissipation windows (16), and dustproof nets are fixed inside the heat dissipation windows (16), and the heat dissipation windows (16) are staggered with the rotating rod (6).

4. The powder metallurgy dust erosion resistant gear motor according to claim 1, characterized in that: The outer ring diameter of the gear one (7) is smaller than the outer ring diameter of the gear two (8), and the outer ring diameter of the gear three (9) is smaller than the outer ring diameter of the gear four (10).

5. The powder metallurgy dust erosion resistant gear motor according to claim 1, characterized in that: A flow guide tube (14) is fixed inside the partition plate (5), and the two ends of the bottom of the flow guide tube (14) extend to the top of gear one (7) and gear four (10), and the top of the flow guide tube (14) extends to the outside of the motor front housing (2) and is threadedly sleeved with a sealing cover (15).

6. The powder metallurgy dust erosion resistant gear motor according to claim 5, characterized in that: A sealing rubber plug (17) is fixed inside the sealing cover (15), and the sealing rubber plug (17) is snap-fitted into the inside of the flow guide tube (14). A filter cup (19) is arranged inside the flow guide tube (14) at the bottom of the sealing rubber plug (17), and the bottom of the outer ring of the filter cup (19) is hung on a fixing ring (18). The outer surface of the fixing ring (18) is fixed on the inner wall of the flow guide tube (14), and a pull rod (20) is fixed in the middle of the filter cup (19).

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