Special gear motor for roller shutter door

Abstract

A speed reducing motor special for a roller shutter door comprises a motor body and a gear box in transmission connection with the output end of the motor body, an installation clamping plate is fixedly arranged on the side, facing the motor body, of the gear box, the two sides of the clamping plate extend downwards to be provided with installation supporting lugs, and installation grooves are formed between the installation clamping plate and the installation supporting lugs. A wire harness of the motor body is led out from a gap between the installation clamping plate and a shell of the motor body, a planet box is arranged on the gearbox, an inner gear ring is arranged in the planet box, a plurality of clamping blocks are evenly arranged on the outer wall of the inner gear ring in the circumferential direction, and axial clamping grooves matched with the clamping blocks are correspondingly formed in the inner wall of the planet box. The circumferential positioning and axial detachable connection of the inner gear ring in the planet box are realized through the embedding of the clamping blocks and the clamping grooves; an output shaft is rotationally arranged in the planet box, and the output end of the output shaft penetrates through the planet box and is sleeved with an impeller; the device has the advantages of high installation efficiency, convenient maintenance, reliable use and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to a speed reducer motor, especially in a special speed reducer motor of roll up door. BACKGROUND

[0002] As the isolation facilities widely used in industrial plants, commercial places and the like, the reliability, installation convenience and maintainability of the drive system of the roll up door directly affect the use effect. The special speed reducer motor of roll up door on the current market has significant deficiencies in the maintenance design of the installation structure and the core transmission components. On the one hand, the motor lacks integrated special installation interface, usually needs to additionally make a support, and the power supply and control wire harness have no reasonable leading channel, the installation process is complex and there is a risk of cable extrusion. On the other hand, the key vulnerable parts (such as the inner gear ring of the planetary speed reduction mechanism) in the transmission system are mostly interference press-fitted or bolted, and are difficult to be individually replaced after damage, resulting in high maintenance cost and long time consumption; at the same time, the traditional connection mode (such as key connection) of the drive impeller and the output shaft also faces the contradiction of inconvenient installation and easy loosening. SUMMARY

[0003] The utility model aims at solving the deficiency of prior art, and provides a special speed reducer motor of roll up door which is high in installation efficiency, convenient to maintain and reliable in use.

[0004] The utility model discloses a special speed reducer motor of roll up door, including motor body, the gear box that is transmission connection with the output end of motor body, the one side of gear box towards motor body is fixedly arranged with the installation clamping plate, the both sides of installation clamping plate downward extension are equipped with the mounting lug, the installation groove is formed between installation clamping plate and the mounting lug of motor body, the wire harness of motor body is led out from the gap between installation clamping plate and the shell of motor body, be equipped with planetary box on the gear box, be equipped with inner gear ring in planetary box, the outer wall of inner gear ring is evenly provided with a plurality of clamping blocks along the circumference, the inner wall of planetary box is correspondingly provided with the axial clamping groove of the clamping block adaptation, the inner gear ring is positioned in the circumferential direction and axially detachably connected in planetary box through the embedding of clamping block and clamping groove;Output shaft is rotatably arranged in the planetary box, and the output end of output shaft passes through planetary box and is sleeved with impeller.

[0005] As preferred, the output end of the motor body is provided with a worm, the input shaft is provided in the gear box, the worm is engaged with the turbine on the input shaft, the end of the worm is sleeved with a shaft sleeve through a pin, and a detachable threaded cover is provided on the gear box corresponding to the position of the shaft sleeve.

[0006] As preferred, the output shaft end is provided with a planetary carrier integrally formed therewith, a plurality of planetary pin shafts are uniformly distributed on the planetary carrier in the circumferential direction, a planetary gear is sleeved on the planetary pin shaft and engages with the inner gear ring, a middle positioning plate is arranged between the planetary box and the gear box, the input shaft extends through the middle positioning plate into the planetary box and the end is sleeved with a sun gear engaging with the planetary gear.

[0007] As preferred, the geometric center position of the impeller is provided with a mounting hole, the outer ring of the impeller is provided with an annular sleeve, the impeller is provided with a reinforcing rib between the outer periphery of the mounting hole and the inner periphery of the annular sleeve, and the impeller is sleeved on the roller shutter door roller through the annular sleeve, and the annular sleeve is uniformly provided with a sleeving hole for fixing the roller shutter door roller.

[0008] As preferred, the mounting hole of the impeller and the cross section of the output end of the output shaft are both matched non-circular structures, the impeller is sleeved on the output shaft through the mounting hole, and the output shaft is sleeved with an elastic tab and a shaft snap ring on the outside of the impeller, so as to realize the axial fixation and circumferential synchronous transmission of the impeller on the output shaft.

[0009] The beneficial effects of the present application are:

[0010] 1. The mounting card and the mounting slot provide a standardized interface for quick alignment and fixation, improving installation efficiency, and the gap between the mounting card and the shell of the motor body provides a protected special channel for the wire harness, effectively preventing extrusion and wear;

[0011] 2. The inner gear ring is positioned and connected by the embedding of the clamping block on the outer wall of the inner gear ring and the axial clamping groove on the inner wall of the planetary box, which can be independently and quickly disassembled from the axial direction, greatly simplifying the replacement process of the core vulnerable parts and reducing downtime and maintenance costs;

[0012] 3. The impeller is circumferentially synchronously transmitted by matching the non-circular mounting hole with the output shaft, and is axially quickly locked and released by relying on the elastic tab and the shaft snap ring, ensuring the reliability of transmission and facilitating the disassembly, on-site debugging and replacement of the impeller;

[0013] 4. The shaft sleeve is arranged on the worm to manually adjust the limit, and the roller shutter door can be manually opened when power is off. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is the overall structure schematic view of the embodiment of the present application;

[0015] Figure 2 is a sectional view of the embodiment of the present application;

[0016] Figure 3 is the B-B sectional view of the present application Figure 3 ;

[0017] Figure 4 This is an exploded view of the planetary box of this utility model;

[0018] Figure 5 This is a schematic diagram of the impeller structure of this utility model.

[0019] In the diagram: 1. Motor body; 11. Wiring harness; 12. Worm gear; 2. Gearbox; 21. Input shaft; 22. Turbine; 23. Pin; 24. Bushing; 25. Threaded cover; 3. Mounting plate; 31. Mounting lug; 32. Mounting slot; 4. Planetary gearbox; 41. Axial slot; 42. Output shaft; 43. Planetary carrier; 44. Planetary pin; 45. Planetary gear; 46. Center positioning plate; 47. Sun gear; 5. Internal gear ring; 51. Clamping block; 6. Impeller; 61. Mounting hole; 62. Annular sleeve; 63. Reinforcing rib; 64. Fitting hole; 65. Elastic lever; 66. Shaft retaining ring. Detailed Implementation

[0020] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0021] Example: Figures 1 to 5 The illustrated geared motor for roller shutter doors includes a motor body 1, a gearbox 2, a planetary gearbox 4, and an impeller 6. A mounting plate 3 is fixedly mounted on the side of the gearbox 2 facing the motor body 1. The main body of the mounting plate 3 is a plate-shaped structure that matches the housing of the motor body 1. Two mounting lugs 31 extend vertically downwards on both sides, forming a mounting groove 32 between the mounting plate 3 and the mounting lugs 31. This groove is then fixed to a mounting bracket pre-installed on the wall. The mounting groove 32 allows for a certain range of vertical adjustment after installation to ensure the motor output shaft 42 reaches the ideal height position. Simultaneously, a uniform gap of approximately 3-5 mm is reserved between the mounting plate 3 and the aluminum housing of the motor body 1. The wiring harness 11 of the motor body 1 is led out from this gap, effectively protecting the wiring harness 11 and preventing it from being squeezed when tightening the mounting bolts, thus resulting in a cleaner appearance.

[0022] The output end of the motor body 1 is provided with a worm 12, the end of the worm 12 is sleeved with a shaft sleeve 24 (the shaft sleeve 24 is a regular polygon) through a pin 23, the gear box 2 is provided with a detachable threaded cover 25 at the position corresponding to the shaft sleeve 24, and the threaded cover is unscrewed to adjust or maintain the axial gap of the worm 12. The gear box 2 is provided with an input shaft 21, the input shaft 21 is provided with a turbine 22, the worm 12 extends into the gear box 2 and forms a first-stage worm and gear 12 speed reduction pair with the turbine 22 installed on the input shaft 21, and has self-locking characteristics. The planetary gear box 4 is connected with the gear box 2 through bolts, and a middle positioning plate 46 is arranged between the planetary gear box 4 and the gear box 2 to ensure coaxiality, and the input shaft 21 extends into the planetary gear box 4 through the middle positioning plate 46 and is sleeved with a sun gear 47 at the end through a spline.

[0023] The planetary gear box 4 is provided with an inner ring gear 5, the outer wall of the inner ring gear 5 is uniformly provided with eight protruding rectangular clamping blocks 51 (the number can be adjusted according to the size) in the circumferential direction, and the aluminum alloy casting shell of the planetary gear box 4 is precisely machined with eight axial clamping grooves 41 matched with the shape of the clamping blocks 51. When assembling, the inner ring gear 5 is only pushed into the planetary gear box 4 along the axial direction, the clamping blocks 51 are aligned and slid into the clamping grooves, the accurate circumferential positioning and firm radial support of the inner ring gear 5 can be realized, when the inner ring gear 5 is pitted or worn due to long-term use, the maintenance personnel only needs to take out the old inner ring gear 5 along the axial direction and replace the new inner ring gear 5, the maintenance work is extremely simple and efficient.

[0024] The planetary gear box 4 is provided with an output shaft 42, the output shaft 42 is provided with a planetary carrier 43 integrally forged with high-strength alloy steel at the end, which ensures the overall rigidity, the planetary carrier 43 is uniformly distributed with three planetary pin shafts 44 in the circumferential direction, the planetary pin shafts 44 are sleeved with planetary gears 45, the planetary gears 45 are simultaneously engaged with the sun gear 47 and the inner ring gear 5, and the speed reduction and torque increase are completed.

[0025] The output end of the output shaft 42 passes through the planetary box 4 and is sleeved with the impeller 6, the geometric center position of the impeller 6 is provided with a mounting hole 61, the mounting hole 61 of the impeller 6 and the cross section of the output end of the output shaft 42 are both matched non-circular structures (preferably two parallel planes and two end circular arcs form a hole structure), only need to push the mounting hole 61 of the impeller 6 assembly to align the output end of the output shaft 42, the two realize the torque transmission without circumferential sliding through the non-circular cross section, a ring-shaped clamping groove (not shown in the figure) is turned on the end of the output shaft 42, after installation, a spring steel elastic tab 65 (the inner side has a protrusion) is clamped into the ring-shaped clamping groove, finally, an axle clamping ring 66 is sleeved on the outer side of the elastic tab 65 to axially limit, this connection mode is extremely firm, when the impeller 6 needs to be disassembled to replace the roller shutter cloth or the roller shaft, only need to gently pry the elastic tab 65 with a screwdriver to deform and come out of the clamping groove, the impeller 6 can be taken out in the axial direction, the whole process does not need any special puller or heavy tool. The outer ring of the impeller 6 is provided with a ring sleeve 62, the impeller 6 is provided with a reinforcing rib 63 between the outer periphery of the mounting hole 61 and the inner periphery of the ring sleeve 62, the impeller 6 is sleeved on the roller shutter roller through the ring sleeve 62 and the ring sleeve 62 is uniformly provided with sleeving holes 64 for fixing the roller shutter roller, during installation, the roller shutter roller is inserted into the ring sleeve 62 and fastened through the sleeving holes 64 by bolts, the reinforcing rib 63 between the impeller 6 and the sleeve effectively enhances the torsional stiffness of the connection part.

[0026] The motor body 1 drives the worm 12 to rotate, drives the turbine 22 and the input shaft 21 to perform the first-stage speed reduction, the input shaft 21 drives the sun gear 47 to rotate, the sun gear 47 drives the three planetary gears 45 to revolve around it, the revolving motion of the planetary gears 45 drives the output shaft 42 connected with the planetary carrier 43 to rotate at a lower speed and a larger torque, finally the torque is transmitted to the impeller 6 through the non-circular driving end of the output shaft 42, drives the roller shutter roller to complete the lifting work of the door.

Claims

1. A special deceleration motor for roller shutter door, comprising a motor body (1) and a gear box (2) in transmission connection with the output end of the motor body (1), characterized in that: The gear box (2) is fixedly provided with a mounting clamping plate (3) on the side of the motor body (1), the mounting clamping plate (3) is provided with mounting lugs (31) extending downward on both sides, and the mounting clamping plate (3) and the mounting lug (31) form a mounting groove (32) therebetween, the wire harness (11) of the motor body (1) is led out from the gap between the mounting clamping plate (3) and the shell of the motor body (1), the gear box (2) is provided with a planetary box (4), the planetary box (4) is provided with an inner gear ring (5) therein, the outer wall of the inner gear ring (5) is uniformly provided with a plurality of clamping blocks (51) in the circumferential direction, and the inner wall of the planetary box (4) is correspondingly provided with an axial clamping groove (41) matched with the clamping block (51), and the inner gear ring (5) is circumferentially positioned and axially detachably connected in the planetary box (4) through the clamping of the clamping block (51) and the clamping groove.

2. The roller shutter door dedicated reduction motor according to claim 1, characterized in that: The output end of the motor body (1) is provided with a worm (12), the gear box (2) is provided with an input shaft (21) therein, the input shaft (21) is provided with a turbine (22) engaged with the worm (12), the end of the worm (12) is provided with a shaft sleeve (24) through a pin (23), and the gear box (2) is provided with a detachable threaded cover (25) at the position corresponding to the shaft sleeve (24).

3. The roller shutter door dedicated reduction motor according to claim 2, characterized in that: The output shaft (42) is provided with a planetary carrier (43) integrally formed thereon at the end, a plurality of planetary pin shafts (44) are uniformly distributed on the planetary carrier (43) in the circumferential direction, a planetary gear (45) engaged with the inner gear ring (5) is sleeved on the planetary pin shaft (44), a middle positioning plate (46) is arranged between the planetary box (4) and the gear box (2), and the input shaft (21) extends through the middle positioning plate (46) into the planetary box (4) and is provided at the end with a sun gear (47) engaged with the planetary gear (45).

4. The roller shutter door dedicated reduction motor according to claim 1, characterized in that: The geometric center of the impeller (6) is provided with a mounting hole (61), the outer circle of the impeller (6) is provided with an annular sleeve (62), and the impeller (6) is provided with a reinforcing rib (63) between the outer periphery of the mounting hole (61) and the inner periphery of the annular sleeve (62), the impeller (6) is sleeved on the roller shutter door roller through the annular sleeve (62), and the annular sleeve (62) is uniformly provided with a sleeving hole (64) for fixing the roller shutter door roller.

5. The roller shutter door dedicated reduction motor according to claim 4, characterized in that: The mounting hole (61) of the impeller (6) and the cross section of the output end of the output shaft (42) are both non-circular structures matched with each other, the impeller (6) is sleeved on the output shaft (42) through the mounting hole (61), and the output shaft (42) is provided with an elastic tab (65) and a shaft clasp (66) on the outside of the impeller (6) to realize the axial fixation and circumferential synchronous transmission of the impeller (6) on the output shaft (42).

Images