CN209083910U - A kind of speed reducer with defencive function - Google Patents

Abstract

The utility model discloses a kind of speed reducers with defencive function, including cabinet, the front side right end of the cabinet is equipped with motor mount, the front side of the motor mount is equipped with motor, the output shaft of the motor passes through the front side of motor mount and cabinet by bearing one and is equipped with master gear, the master gear is engaged with from gear, it is described to be located on worm screw from gear, and the both ends of worm screw are connect by bearing two with box house front and rear sides, bearing block is connected with by fixed wire in the front and rear sides of cabinet positioned at worm screw both ends, the worm screw engagement is connected with annular whirlpool tooth, the inner side array distribution of annular whirlpool tooth has eight arc-shaped slots, when can prevent overload, ball-type fixture block is detached from arc-shaped slot, make to rotate between round fixed block and annular whirlpool tooth, prevent the damage of reducer gear and motor, reduce maintenance cost, The normal use of retarder is not influenced, improves working efficiency etc..

Description

A kind of speed reducer with defencive function

Technical field

The utility model relates to reducer technology field, specially a kind of speed reducer with defencive function.

Background technique

Existing retarder has a cylindrical gear reducer, worm-gear speed reducer, planetary reducer and three-ring gear reducer etc., These retarders are typically all using motor as power, by the transmission output torque of speed reducer, when output torque is design Fixed value, when retarder instantaneous overload, the load of receiving can increase at double, certainly will will lead in this way reducer gear and The damage of motor, increases maintenance cost, influences the normal use of retarder.

Utility model content

The technical problems to be solved in the utility model is to overcome existing defect, provides a kind of deceleration with defencive function Machine, the damage of reducer gear and motor when can prevent from overloading, reduces maintenance cost, does not influence the normal use of retarder, Working efficiency etc. is improved, the problems in background technique can be effectively solved.

To achieve the above object, the utility model provides the following technical solutions: a kind of speed reducer with defencive function, packet Cabinet is included, the front side right end of the cabinet is equipped with motor mount, and the front side of the motor mount is equipped with motor, the motor Output shaft the front side of motor mount and cabinet is passed through by bearing one and is equipped with master gear, the master gear is nibbled with from gear It closes, it is described to be located on worm screw from gear, and the both ends of worm screw are connect by bearing two with box house front and rear sides, and worm screw is located at Both ends are connected with bearing block by fixed wire in the front and rear sides of cabinet, and the worm screw engagement is connected with annular whirlpool tooth, the ring The inner side array distribution of shape whirlpool tooth has eight arc-shaped slots, and the inner side of annular whirlpool tooth is connected with by bearing three The center of round fixed block, the circle fixed block is equipped with speed reducer output revolving shaft, the front and back two of the speed reducer output revolving shaft End passes through the front and rear sides of cabinet by bearing four and extends to outside, and the lateral array of the circle fixed block is distributed with eight A circular groove, the inside of the circular groove are equipped with spring, and the spring is equipped with ball far from one end of speed reducer output revolving shaft Type fixture block, the ball-type fixture block are corresponding with arc-shaped slot.

As a kind of optimal technical scheme of the utility model, set on front side of the motor mount there are four mounting post, Four mounting posts are equidistantly evenly distributed in the front side of motor mount.

As a kind of optimal technical scheme of the utility model, the upper surface left end of the cabinet is equipped with lubricating oil inlet pipe, The inner side top of the lubricating oil inlet pipe has been connected through a screw thread sealing cover, and the upper surface center of the sealing cover is equipped with hand Drop handle, the bottom side of the sealing cover is equipped with lubricants capacity measuring rod, and the bottom end of lubricants capacity measuring rod passes through lubricating oil inlet pipe And extend to the inside of cabinet.

As a kind of optimal technical scheme of the utility model, the circular groove is close to one end of speed reducer output revolving shaft Equipped with positioning column, the outside of the positioning column and spring are socketed.

Compared with prior art, the utility model has the beneficial effects that this has the speed reducer of defencive function, when motor is defeated When entering to overload, arc-shaped slot pushes ball-type fixture block to make spring contraction, between annular whirlpool tooth and round fixed block by bearing three into Row rotation, prevents the damage of reducer gear and motor, reduces maintenance cost, does not influence the normal use of retarder, improves work Make efficiency etc..

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model structure backsight schematic cross-sectional view；

Fig. 3 is structure enlargement diagram at the utility model A.

In figure: 1 cabinet, 2 lubricating oil inlet pipes, 3 sealing covers, 4 handheld rings, 5 speed reducer output revolving shafts, 6 mounting posts, 7 motors Mounting base, 8 motors, 9 fixed wires, 10 bearing blocks, 11 master gears, 12 worm screws, 13 are fixed from gear, 14 annular whirlpool teeth, 15 circles Block, 16 lubricants capacity measuring rods, 17 positioning columns, 18 springs, 19 circular grooves, 20 arc-shaped slots, 21 ball-type fixture blocks.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of speed reducer with defencive function, including Cabinet 1, the front side right end of cabinet 1 are equipped with motor mount 7, and the front side of motor mount 7 is set there are four mounting post 6, and four are pacified Dress column 6 is equidistantly evenly distributed in the front side of motor mount 7, convenient for the installation and fixation of motor, the front side of motor mount 7 Equipped with motor 8, the output shaft of motor 8 passes through the front side of motor mount 7 and cabinet 1 by bearing one and is equipped with master gear 11, Master gear 11 is engaged with from gear 13, is located on worm screw 12 from gear 13, and the both ends of worm screw 12 pass through in bearing two and cabinet 1 The connection of portion front and rear sides, motor 8 work, and drive master gear 11 from gear 13 and rotate, and so that the rotation of worm screw 12 is worked, are located at 12 both ends of worm screw are fixedly connected with bearing block 10 by fixed wire 9 in the front and rear sides of cabinet 1, prevent the position of worm screw 12 from occurring Offset avoids worm screw 12 and annular whirlpool tooth 14 that from can not docking, and the engagement of worm screw 12 is connected with annular whirlpool tooth 14, annular whirlpool tooth 14 it is interior Eight arc-shaped slots 20 are distributed in portion's lateral array, and the inner side of annular whirlpool tooth 14 is connected with round fixed block by bearing three 15, the center of round fixed block 15 is equipped with speed reducer output revolving shaft 5, convenient for the output of power, the front and back of speed reducer output revolving shaft 5 Both ends pass through bearing four across the front and rear sides of cabinet 1 and extend to outside, and the lateral array of round fixed block 15 is distributed with The inside of eight circular grooves 19, circular groove 19 is equipped with spring 18, and spring 18 is equipped with far from one end of speed reducer output revolving shaft 5 Ball-type fixture block 21, ball-type fixture block 21 is corresponding with arc-shaped slot 20, and arc-shaped slot 20 pushes ball-type fixture block 21 to make spring 18 when overload It shrinks, is rotated between annular whirlpool tooth 14 and round fixed block 15 by bearing three, prevent the damage of reducer gear and motor It is bad, maintenance cost is reduced, does not influence the normal use of retarder, improves working efficiency etc., circular groove 19 is defeated close to speed reducer One end of shaft 5 is equipped with positioning column 17 out, and the outside of positioning column 17 and spring 18 are socketed, and prevents spring 18 from shifting influence just The upper surface left end of often work, cabinet 1 is equipped with lubricating oil inlet pipe 2, and the inner side top of lubricating oil inlet pipe 2 is connected through a screw thread There is sealing cover 3, lubricating oil can be added, the upper surface center of sealing cover 3 is equipped with handheld ring 4, and the bottom side of sealing cover 3 is equipped with Lubricants capacity measuring rod 16, and the bottom end of lubricants capacity measuring rod 16 passes through lubricating oil inlet pipe 2 and extends to the inside of cabinet 1, Internal lubricating oil can be measured, prevent internal non lubricant oil from increasing the abrasion of speed reducer, improve service life.

When in use: when motor 8, which inputs, to be overloaded, master gear 11 can be made to drive from gear 13 and rotated, 12 band of worm screw is made Rotating ring shape whirlpool tooth 14 rotates, and arc-shaped slot 20 pushes ball-type fixture block 21 to shrink spring 18, annular whirlpool tooth 14 and round fixed block It is rotated between 15 by bearing three, prevents the damage of reducer gear and motor, reduced maintenance cost, do not influence retarder Normal use, improve working efficiency etc..

When the utility model can prevent overload, ball-type fixture block 21 is detached from arc-shaped slot 20, makes round fixed block 15 and ring It is rotated between shape whirlpool tooth 14, prevents the damage of reducer gear and motor, reduce maintenance cost, do not influence normally making for retarder With raising working efficiency etc..

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (4)

1. a kind of speed reducer with defencive function, including cabinet (1), it is characterised in that: the front side right end of the cabinet (1) is set Have motor mount (7), the front side of the motor mount (7) is equipped with motor (8), and the output shaft of the motor (8) passes through axis It holds the front side that one passes through motor mount (7) and cabinet (1) and is equipped with master gear (11), the master gear (11) and from gear (13) it engages, it is described to be located on worm screw (12) from gear (13), and the both ends of worm screw (12) are internal by bearing two and cabinet (1) Front and rear sides connection is located at worm screw (12) both ends in the front and rear sides of cabinet (1) and is connected with bearing block by fixed wire (9) (10), worm screw (12) engagement is connected with annular whirlpool tooth (14), and the inner side array distribution of the annular whirlpool tooth (14) has The inner side of eight arc-shaped slots (20), the annular whirlpool tooth (14) is connected with round fixed block (15), institute by bearing three The center for stating round fixed block (15) is equipped with speed reducer output revolving shaft (5), and the rear and front end of the speed reducer output revolving shaft (5) is equal The front and rear sides of cabinet (1) are passed through by bearing four and extend to outside, the lateral array distribution of the circle fixed block (15) There are eight circular grooves (19), the inside of the circular groove (19) is equipped with spring (18), and the spring (18) is far from speed reducer One end of output revolving shaft (5) is equipped with ball-type fixture block (21), and the ball-type fixture block (21) is corresponding with arc-shaped slot (20).

2. a kind of speed reducer with defencive function according to claim 1, it is characterised in that: the motor mount (7) it is set on front side of there are four mounting post (6), four mounting posts (6) are equidistantly evenly distributed in the front side of motor mount (7).

3. a kind of speed reducer with defencive function according to claim 2, it is characterised in that: the cabinet (1) it is upper Surface left end is equipped with lubricating oil inlet pipe (2), and the inner side top of the lubricating oil inlet pipe (2) has been connected through a screw thread sealing cover (3), the upper surface center of the sealing cover (3) is equipped with handheld ring (4), and the bottom side of the sealing cover (3) is measured equipped with lubricating oil Gauge rod (16), and the bottom end of lubricants capacity measuring rod (16) passes through lubricating oil inlet pipe (2) and extends to the inside of cabinet (1).

4. a kind of speed reducer with defencive function according to claim 3, it is characterised in that: the circular groove (19) One end close to speed reducer output revolving shaft (5) is equipped with positioning column (17), and the outside and spring (18) of the positioning column (17) are socketed.