CN209943430U

CN209943430U - Secondary speed reduction transmission mechanism of barrier gate movement

Info

Publication number: CN209943430U
Application number: CN201920094973.4U
Authority: CN
Inventors: 刘训武; 陈国彬; 肖勇善
Original assignee: Guangdong Ankuai Intelligent Science & Technology Co Ltd
Current assignee: Guangdong Ankuai Intelligent Science & Technology Co Ltd
Priority date: 2019-01-21
Filing date: 2019-01-21
Publication date: 2020-01-14
Anticipated expiration: 2029-01-21

Abstract

The utility model discloses a second grade speed reduction drive mechanism of banister core, its casing cavity forms installation space, but worm and output shaft are installed to the pivot in the installation space, the organism of motor links firmly with the casing and the rotation axis of motor stretches into installation space, the region that the rotation axis stretches into installation space is equipped with the driving gear, the driven gear with driving gear meshing is installed to the non-spiral tooth region of worm, the output shaft is located the region of installation space and installs the worm wheel that meshes with the worm and can realize the auto-lock, on the one hand can not pound the harm personal property safety naturally when banister pole lifting lever or pole dropping in-process suddenly stops, on the other hand, the artificial banister that passes through of banister pole illegal when preventing that the banister from closing. In addition, the bearing seat for installing the main shaft of the barrier gate is arranged at the top of the outer side of the shell, so that the structure of the barrier gate is simplified, the assembling precision and the strength of the main shaft of the barrier gate can be improved, and the running stability of the barrier gate is improved.

Description

Secondary speed reduction transmission mechanism of barrier gate movement

Technical Field

The utility model relates to a banister core transmission field, in particular to second grade speed reduction drive mechanism of banister core.

Background

In many occasions, in order to meet the requirement of controlling the transmission speed of the motor, a speed control mechanism is usually installed and equipped, for example, a speed reduction transmission mechanism is needed to be installed between the motor and the brake rod in a barrier gate system to reduce the lifting speed of the brake rod, so as to avoid the damage of machine elements and even the harm to personal and property safety caused by too high speed. In the traditional way, people use the gear drive mode to change the moment to realize the purpose of speed reduction, and because the restriction of the movement volume of the barrier gate, the mode of multi-stage gear speed reduction transmission is needed to be adopted to achieve the ideal speed reduction effect, so the volume, the stability and the precision of the speed reduction transmission mechanism are difficult to guarantee, and the gear drive is bidirectional transmission, on one hand, in the rising or falling process of the barrier gate rod, if a motor fault or power failure occurs, the barrier gate rod can naturally smash and fall down due to gravity and possibly damage the personal and property safety, on the other hand, the barrier gate rod can be artificially lifted after the barrier gate is closed, and illegal people can easily pass through the barrier gate illegally. In order to solve the problem, in the prior art, the length, the position and the angle of a four-bar linkage mechanism connecting a speed reduction mechanism and a barrier gate rod are designed, so that when the barrier gate rod is lifted or descended to the proper position, three rotation points of the four-bar linkage mechanism are positioned on the same straight line to form a dead point, and the barrier gate rod lifted or descended to the proper position is locked, thereby preventing the barrier gate rod from suddenly stopping falling down naturally due to gravity or being lifted up manually in the rod lifting or rod falling process under the condition that a motor does not rotate. However, due to design, manufacturing and assembly errors of the planar four-bar linkage, it is difficult to ensure that the four-bar linkage can form a dead point when the barrier bar is lifted or lowered into position. In addition, the output shaft of the speed reduction transmission mechanism is connected with the main shaft of the barrier gate through the four-bar linkage, the main shaft of the traditional barrier gate is installed on a fixing plate in a box body of a barrier gate core through a bearing, the fixing plate is separated from the speed reduction transmission mechanism and is manufactured and assembled respectively, more design errors, machining errors and accumulated errors exist, the problems of small structural strength and large assembly errors exist, the parallelism between the main shaft of the barrier gate installed on the fixing plate and the axis of the output shaft of the speed reduction transmission mechanism is difficult to guarantee, and the stable operation of the barrier gate is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model mainly provides a small, can realize auto-lock and enable the banister steady operation's second grade reduction gears of banister core.

In order to realize the above-mentioned purpose, the utility model provides a second grade reduction gears of banister core, which comprises a housin, casing cavity forms installation space, but pivot installation worm and output shaft in the installation space, but the organism of motor links firmly and the rotation axis of motor stretches into the installation space with the casing, and the region that the rotation axis stretched into the installation space is equipped with the driving gear, the driven gear with driving gear engagement has been installed in the non-spiral tooth region of worm, the output shaft is located the region of installation space and installs the worm wheel that meshes with the worm and can realize the auto-lock, the outside top of casing is equipped with the bearing frame, but the main shaft of banister pass through the main bearing pivot adorn in on the bearing frame, and the axis of the main shaft of banister is parallel.

In the utility model, the driving gear and the driven gear form a first-stage speed reducing mechanism, then a second-stage speed reducing mechanism is formed by the cooperation of a worm gear and a worm, the first-stage speed reducing mechanism and the second-stage speed reducing mechanism are vertically arranged in the installation space, the volume of the speed reducing transmission mechanism can be effectively reduced, the stress and the abrasion of a workpiece can be reduced by the second-stage speed reducing distribution moment, the service life of the workpiece is prolonged, and the speed reducing transmission mechanism has a self-locking function, on one hand, when the speed reducing transmission mechanism is suddenly stopped in the bar lifting process of the barrier bar, the body and property safety can not be naturally smashed and damaged, on the other hand, the illegal passing of the barrier bar by lifting the barrier bar is prevented when the barrier is closed, in addition, a bearing seat is arranged at the top outside the shell, the main shaft of the barrier can be pivotally arranged on the bearing seat through the main bearing, and the, on one hand, the structure of the barrier gate is facilitated to be simplified, on the other hand, the assembling precision and strength of the main shaft of the barrier gate can be improved, and the running stability of the barrier gate is further improved.

Drawings

Fig. 1 is an exploded schematic view of a two-stage reduction transmission mechanism of the barrier gate movement of the present invention;

fig. 2 is a sectional view of the second-stage reduction transmission mechanism of the barrier gate movement of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indicators (such as … …, upper, lower, left, right, front, back, top, bottom, inner, outer, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial) are involved in the embodiments of the present invention, the directional indicators are only used to explain the relative position, motion, etc. of the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are changed accordingly.

In addition, if there is a description relating to "first" or "second", etc. in the embodiments of the present invention, the description of "first" or "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a second grade reduction gears of banister core.

In the embodiment of the present invention, as shown in fig. 1 and fig. 2, the two-stage reduction transmission mechanism includes a housing 1, the housing 1 is hollow to form an installation space, a worm 3 and an output shaft 23 are pivotally installed in the installation space, wherein the worm 3 and the output shaft 23 are perpendicular to each other, a body of a motor 5 is fixedly connected to the housing 1, a rotating shaft 7 of the motor 5 extends into the installation space, a driving gear 71 is disposed in a region where the rotating shaft 7 extends into the installation space, a driven gear 4 engaged with the driving gear 71 is disposed in a non-helical gear region of the worm 3, a worm wheel 2 engaged with the worm 3 and capable of realizing self-locking is disposed in a region where the output shaft 23 is located in the installation space, a bearing seat 11 is disposed at a top portion outside the housing 1, a main shaft 6 of a barrier gate is pivotally installed on the bearing seat through a main bearing 61, and, this kind of mode of casing is located to bearing frame, help simplifying the structure of banister on the one hand, on the other hand can improve the assembly precision and the intensity of the main shaft 6 of banister, and then improve the stability of banister operation, and driving gear and driven gear set become first order reduction gears, by the worm wheel afterwards, the worm cooperation forms second level reduction gears, first order reduction gears and second level reduction gears arrange perpendicularly in installation space, can effectively reduce the utility model discloses speed reduction drive mechanism's volume, and second grade speed reduction distribution moment can reduce the atress and the wearing and tearing of work piece, the life of work piece has been prolonged to possess self-locking function, on the one hand, can not pound naturally when banister pole in-process suddenly and fall the harm personal safety, on the other hand, the artificial banister that passes through of banister of lifting when preventing that the banister from closing.

Specifically, at least one section of the area of the rotating shaft 7 of the motor extending into the installation space is a gear shaft, the gear shaft forms the driving gear 71, and the mode of manufacturing the driving gear and the rotating shaft of the motor into an integrated structure can improve the bonding strength of the driving gear and the rotating shaft, reduce the manufacturing cost and simultaneously improve the transmission precision. Of course, the driving gear may be a split structure fixed to the end of the rotating shaft 7.

Specifically, key grooves are formed in the positions, opposite to the worm 3 and the driven gear 4, of the worm, the driven gear is clamped and connected to the worm through the flat key 8 and the key grooves in a matched mode, a clamping groove is formed in the position, below the driven gear 4, of the worm 3, and a retaining ring 41 which is abutted to the driven gear is clamped and connected to the clamping groove.

Specifically, the worm 3 is a shuttle-shaped rod-shaped structure with two ends being thin and a thick middle part, the middle part is formed with spiral teeth 31 and meshed with the gear teeth 24 of the worm wheel 2, the two ends are respectively provided with an upper bearing 32 and a lower bearing 33, and the upper bearing 32 and the lower bearing 33 are arranged in the installation space, so that the worm is fixedly supported on the shell and can rotate.

Furthermore, two ends of the worm 3 are fixedly connected with inner rings of the upper bearing 32 and the lower bearing 33 in an interference fit or check ring clamping and positioning mode, and outer rings of the upper bearing 32 and the lower bearing 33 are fastened on the shell 1 in a screw or buckle or pressing ring pressing mode. The upper bearing 32 and the lower bearing 33 can be mounted on the housing by other mounting methods, which are not described in detail herein.

Furthermore, as shown in fig. 2, an oil seal 9 is arranged between the lower bearing and the driven gear, a shaft retainer ring 34 is arranged above the oil seal, and an O-ring 72 is arranged below the driven gear, so that sand, dust, water vapor and the like can be prevented from invading into the bearing from the outside, and meanwhile, lubricating oil in the bearing is prevented from leaking.

The embodiment of the utility model provides an in, casing 1 corresponds the both sides position of output shaft 23 and has seted up left through-hole 13 and right through-hole, and supporting being equipped with can seal the end cover 10 of right through-hole, output shaft 23 at least part passes left through-hole 13 for connecting plane four-bar linkage (not shown) rotates with the main shaft 6 that drives the banister of being connected with four-bar linkage, thereby 6 drive banister poles through the main shaft of banister go up and down.

Further, the output shaft 23 is provided with a left bearing 25 and a right bearing 26, an outer ring of the left bearing 25 is fixedly arranged in the left through hole 13, an outer ring of the right bearing 26 is fixedly arranged in a limiting groove 101 on one side surface of the end cover 10, the end cover 10 is fixedly arranged on the housing by using screws, and naturally, the left bearing 25 and the right bearing 26 can also be arranged on the housing by adopting other existing installation modes, which is not described herein again.

Specifically, casing 1 with 11 integrated into one piece of bearing frame, integrated into one piece's structure has structural strength height, advantage that low in manufacturing cost, 11 shaping of bearing frame has the mounting hole that is located directly over the output shaft, the base bearing 61 is installed the mounting hole, this mode that sets up makes the utility model discloses second grade speed reduction drive can select left direction or right direction as required at any time and install in banister movement box, adapts to different banister equipment requirements.

The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims

1. The utility model provides a second grade reduction gears of banister core which characterized in that: the motor comprises a housin, casing cavity forms installation space, but pivot in the installation space installs worm and output shaft, and the organism of motor links firmly with the casing and the rotation axis of motor stretches into installation space, and the rotation axis stretches into installation space's region and is equipped with the driving gear, the driven gear with driving gear meshing is installed in the non-spiral tooth region of worm, the output shaft is located installation space's region and installs the worm wheel that meshes with the worm and can realize the auto-lock, the outside top of casing is equipped with the bearing frame, but the main shaft of banister passes through the main bearing pivot adorn in on the bearing frame, and the axis of the main shaft of banister is parallel with the axis of output.

2. A two-stage reduction transmission mechanism of barrier gate movement according to claim 1, characterized in that: at least one section of the rotating shaft of the motor extending into the installation space is a gear shaft, and the gear shaft forms the driving gear or the driving gear is a split structure fixed at the end part of the rotating shaft.

3. A two-stage reduction transmission mechanism of barrier gate movement according to claim 1, characterized in that: key grooves are respectively formed in the positions, opposite to the worm and the driven gear, of the worm, the driven gear is clamped and connected to the worm through the matching of the flat keys and the key grooves, a clamping groove is formed in the position, below the driven gear, of the worm, and a retaining ring which is abutted to the driven gear is clamped and connected to the clamping groove.

4. A two-stage reduction transmission mechanism of barrier gate movement according to claim 1, characterized in that: the worm is in a fusiform rod-shaped structure with two thin ends and a thick middle part, spiral teeth are formed in the middle part and are meshed with gear teeth of the worm wheel, an upper bearing and a lower bearing are mounted at two ends of the worm respectively, and the upper bearing and the lower bearing are mounted in the mounting space.

5. The two-stage reduction transmission mechanism of the banister movement according to claim 4, characterized in that: the two ends of the worm are fixedly connected with the inner rings of the upper bearing and the lower bearing in an interference fit or check ring clamping and positioning mode, and the outer rings of the upper bearing and the lower bearing are fastened on the shell in a screw or buckle or pressing ring pressing mode.

6. A two-stage reduction transmission mechanism of barrier gate movement according to claim 5, characterized in that: an oil seal is arranged between the lower bearing and the driven gear, a shaft retainer ring is arranged above the oil seal, and an O-shaped ring is arranged below the driven gear.

7. A two-stage reduction transmission mechanism of barrier gate movement according to claim 1, characterized in that: the shell is provided with a left through hole and a right through hole at positions corresponding to two sides of the output shaft, an end cover capable of sealing the right through hole is arranged in a matched mode, and at least part of the output shaft penetrates through the left through hole.

8. A two-stage reduction transmission mechanism of barrier gate movement according to claim 7, characterized in that: the output shaft is provided with a left bearing and a right bearing, the outer ring of the left bearing is fixedly arranged in the left through hole, and the outer ring of the right bearing is fixedly arranged in a limiting groove on one side surface of the end cover.

9. A two-stage reduction transmission mechanism of a banister movement according to any one of claims 1 to 8, characterized in that: the housing and the bearing seat are integrally formed.

10. A two-stage reduction transmission mechanism of a banister movement according to claim 9, characterized in that: and the bearing seat is provided with a mounting hole positioned right above the output shaft in a molding manner, and the main bearing is arranged in the mounting hole.