CN203722406U

CN203722406U - Gear motor

Info

Publication number: CN203722406U
Application number: CN201420113696.4U
Authority: CN
Inventors: 黄建烽; 王世勇
Original assignee: NINGBO ZHENHAI YUANYI MECHANICAL AND ELECTRICAL MANUFACTURE CO Ltd
Current assignee: NINGBO ZHENHAI YUANYI MECHANICAL AND ELECTRICAL MANUFACTURE CO Ltd
Priority date: 2014-03-13
Filing date: 2014-03-13
Publication date: 2014-07-16
Anticipated expiration: 2024-03-13

Abstract

The utility model provides a gear motor which comprises a dc motor. A decelerator is fixed at the front end of the dc motor, and comprises a casing, a gear and a rotating shaft. A front bearing and a rear bearing are arranged in the casing in parallel, the gear is positioned between the front bearing and the rear bearing, the tail end of the rotating shaft successively penetrates through the front bearing, the gear and the rear bearing, and the rotating shaft is connected with the gear via a flat key. An annular positioning groove is formed in the sidewall of the rotating shaft, a jumper ring is clamped in the annular positioning groove and positioned between the gear and the rear bearing, the front end of the rotating shaft is provided with a back-up ring in a sliding manner, and the back-up ring is positioned between the front bearing and the gear. An output shaft of the dc motor extends into the casing, and gear teeth formed at the end portion of the output shaft are engaged with the gear. The gear motor of the utility model is simple and compact in structure, small in size, low in weight, low in working noise, convenient to maintain and long in service life.

Description

A kind of reducing motor

Technical field

The utility model relates to a kind of motor, particularly a kind of reducing motor.

Background technology

Reducing motor refers to the conglomerate of reductor and motor (motor).This conglomerate also can be described as gear motor or gear motor conventionally.Traditional reducing motor complex structure, volume is large, work noise is large and not easy to assemble, affects daily maintenance.

Utility model content

(1) technical problem that will solve

The technical problems to be solved in the utility model is to provide a kind of simple and compact for structure, volume is little, lightweight, work noise is low, convenient to disassembly reducing motor.

(2) technical scheme

For solving the problems of the technologies described above, the utility model provides a kind of reducing motor, comprise direct current machine 1, the front end of described direct current machine 1 is fixed with deceleration device, described deceleration device comprises housing 2, gear 3 and rotating shaft 4, in described housing 2, be arranged with fore bearing 5 and rear bearing 6 in parallel, described gear 3 is between described fore bearing 5 and rear bearing 6, the tail end of described rotating shaft 4 is successively through described fore bearing 5, gear 3 and rear bearing 6, described rotating shaft 4 is connected by flat key 7 with described gear 3, the sidewall of described rotating shaft 4 offers annular positioning groove, in described annular positioning groove, be arranged with jump ring 8, described jump ring 8 is between described gear 3 and described rear bearing 6, the front end of described rotating shaft 4 is equipped with back-up ring 9, described back-up ring 9 is between described fore bearing 5 and described gear 3, the output shaft 101 of described direct current machine 1 extends in described housing 2, and the gear teeth that are opened in described output shaft 101 ends engage with described gear 3.

Further, described housing 2 comprises and is mounted by means of bolts on the rear end cap of described direct current machine 1 end and is bolted on the front end housing on described rear end cap, in described front end housing, offer the first shoulder hole, described fore bearing 5 is set in described the first shoulder hole, in described rear end cap, offer the second shoulder hole, described rear bearing 6 is set in described the second shoulder hole, and is provided with elastomeric element 10 between the end face of described rear bearing 6 and the step surface of described the second shoulder hole.

Further, described elastomeric element 10 is corrugated gasket.

Further, between described rotating shaft 4 and described front end housing, be provided with outside framework oil seal 11.

Further, the gear teeth on the output shaft 101 of described direct current machine are helical teeth, and described gear 3 is helical gear.

Further, on the front end face of described front end housing, be circumferentially evenly equipped with at least six threaded mounting holes 201.

Further, be circumferentially evenly equipped with at least six reinforcements 202 on the front end face of described front end housing, described threaded mounting hole 201 is opened on described reinforcement 202.

(3) beneficial effect

The utility model reducing motor, in the end of motor shaft, straight forming goes out the gear teeth that engage with reduction gearing, makes overall structure simply compact, has reduced volume and weight; And work noise is low, dismantle and install very convenient, be beneficial to regular maintenance or maintenance; And rotating shaft can be born certain power in the axial direction, avoids rotating shaft to be subject to axial force and damages, and has extended useful life; The utility model reducing motor, simple and compact for structure, volume is little, lightweight, work noise is low, easy to maintenance and long service life.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model reducing motor;

Fig. 2 is the cutaway view of the utility model reducing motor;

Fig. 3 is the left view of the utility model reducing motor;

Fig. 4 is the structural representation of the deceleration device of the utility model reducing motor.

Embodiment

Consult Fig. 1～Fig. 4, the utility model provides a kind of reducing motor, comprise direct current machine 1, front end at direct current machine 1 is fixed with deceleration device, this deceleration device comprises housing 2, gear 3 and rotating shaft 4, in housing 2, be arranged with fore bearing 5 and rear bearing 6 in parallel, gear 3 is between fore bearing 5 and rear bearing 6, the tail end of rotating shaft 4 is successively through fore bearing 5, gear 3 and rear bearing 6, and rotating shaft 4 is connected by flat key 7 with gear 3, sidewall in rotating shaft 4 offers annular positioning groove, in this annular positioning groove, be arranged with jump ring 8, jump ring 8 is between gear 3 and rear bearing 6, for axial location, be equipped with back-up ring 9 at the front end of rotating shaft 4, this back-up ring 9 is between fore bearing 5 and gear 3, the output shaft 101 of direct current machine 1 extends in housing 2, and the gear teeth that are opened in output shaft 101 ends engage with gear 3, in the present embodiment, housing 2 comprises the rear end cap that is mounted by means of bolts on direct current machine 1 end, and be bolted on the front end housing on this rear end cap, preferably, all adopt hexagon socket head cap screw, in front end housing, offer the first shoulder hole, fore bearing 5 is set in the first shoulder hole, in rear end cap, offer the second shoulder hole, this second shoulder hole is blind hole, rear bearing 6 is set in this second shoulder hole, and between the step surface of the end face of rear bearing 6 and the second shoulder hole, be provided with elastomeric element 10, preferably, this elastomeric element 10 is corrugated gasket, it can make it have certain cushioning effect in the time that rotating shaft is subject to axial force, avoid the impact of axial force on deceleration device, thereby stability and useful life are improved, in order to make it have good sealing effectiveness, between rotating shaft 4 and front end housing, be provided with sealing device, preferred, sealing device is outside framework oil seal 11, in order to reduce work noise, to avoid producing impact endurance test shock, and make transmission more stable, the gear teeth on the output shaft 101 of the direct current machine in the present embodiment are helical teeth, and gear 3 is helical gear, this scheme has further reduced volume and weight, and driving torque is large, startup and stable drive, meanwhile, be circumferentially evenly equipped with at least six threaded mounting holes 201 on the front end face of front end housing, it can make to install more accurate, further, on the front end face of front end housing, be circumferentially evenly equipped with at least six reinforcements 202, threaded mounting hole 201 is opened on this reinforcement 202, and preferred, this reinforcement is eight, threaded mounting hole is also eight simultaneously, this reinforcement not only has booster action, and it has reduced the contact area of front end housing end face and fixation simultaneously, thereby avoids affecting because flatness is poor installation, and increase pressure, further improved installation accuracy and stability is installed.

The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.

Claims

1. a reducing motor, it is characterized in that: comprise direct current machine (1), the front end of described direct current machine (1) is fixed with deceleration device, described deceleration device comprises housing (2), gear (3) and rotating shaft (4), in described housing (2), be arranged with fore bearing (5) and rear bearing (6) in parallel, described gear (3) is positioned between described fore bearing (5) and rear bearing (6), the tail end of described rotating shaft (4) is successively through described fore bearing (5), gear (3) and rear bearing (6), described rotating shaft (4) is connected by flat key (7) with described gear (3), the sidewall of described rotating shaft (4) offers annular positioning groove, in described annular positioning groove, be arranged with jump ring (8), described jump ring (8) is positioned between described gear (3) and described rear bearing (6), the front end of described rotating shaft (4) is equipped with back-up ring (9), described back-up ring (9) is positioned between described fore bearing (5) and described gear (3), the output shaft (101) of described direct current machine (1) extends in described housing (2), and the gear teeth that are opened in described output shaft (101) end engage with described gear (3).

2. reducing motor as claimed in claim 1, it is characterized in that: described housing (2) comprises the rear end cap that is mounted by means of bolts on described direct current machine (1) end, and be bolted on the front end housing on described rear end cap, in described front end housing, offer the first shoulder hole, described fore bearing (5) is set in described the first shoulder hole, in described rear end cap, offer the second shoulder hole, described rear bearing (6) is set in described the second shoulder hole, and be provided with elastomeric element (10) between the end face of described rear bearing (6) and the step surface of described the second shoulder hole.

3. reducing motor as claimed in claim 2, is characterized in that: described elastomeric element (10) is corrugated gasket.

4. reducing motor as claimed in claim 2, is characterized in that: between described rotating shaft (4) and described front end housing, be provided with outside framework oil seal (11).

5. reducing motor as claimed in claim 1, is characterized in that: the gear teeth on the output shaft (101) of described direct current machine are helical teeth, and described gear (3) is helical gear.

6. reducing motor as claimed in claim 2, is characterized in that: on the front end face of described front end housing, be circumferentially evenly equipped with at least six threaded mounting holes (201).

7. reducing motor as claimed in claim 6, is characterized in that: on the front end face of described front end housing, be circumferentially evenly equipped with at least six reinforcements (202), described threaded mounting hole (201) is opened on described reinforcement (202).