CN215172081U

CN215172081U - Non-return device of gear speed reducer

Info

Publication number: CN215172081U
Application number: CN202120821133.0U
Authority: CN
Inventors: 陈可坡; 林必湖; 李海洋
Original assignee: Shanghai Zhuoda Precision Reducer Co ltd
Current assignee: Shanghai Zhuoda Precision Reducer Co ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-12-14
Anticipated expiration: 2031-04-21

Abstract

The utility model discloses a contrary device that ends of gear reducer, including the gear box, through coupling joint in the motor of gear box input with cup joint in the output shaft of gear box output, the welding has first install bin on the outer wall of gear box one side, and output shaft one end passes through the bearing and connects on first install bin one side outer wall, the welding has the second install bin on the outer wall of gear box top, be equipped with first contrary mechanism that ends on the inner wall of first install bin one side, first contrary mechanism that ends includes the sleeve, the sleeve welds on first install bin one side inner wall, and the sleeve both ends are connected on the output shaft outer wall through the bearing respectively, it has the spout to open on the sleeve outer wall. The utility model discloses make the speed reducer can't carry out reverse rotation, prevent that the upset of motor end from causing the driving gear damage, improved the life of driving gear, can improve the contrary dynamics of ending of the contrary device of speed reducer, prevent gear and other annex damages, improved the security.

Description

Non-return device of gear speed reducer

Technical Field

The utility model relates to a gear reducer technical field especially relates to a gear reducer's contrary device that ends.

Background

The gear reducer is generally used for low-rotating-speed and large-torque transmission equipment, a common reducer of a motor also has several pairs of gears with the same principle to achieve an ideal speed reduction effect, the ratio of the number of the teeth of the large gear to the number of the teeth of the small gear is the transmission ratio, and with the continuous development of the reducer industry, more and more enterprises use the reducer.

At present, make motor end reversal under the action of gravity when transportation motor stops, the rotational speed increases rapidly simultaneously, can cause the damage of the gear and the motor of motor end and other annexes, and the material whereabouts on the conveyer also can cause the material to damage or peripheral equipment and personnel's potential safety hazard in addition, and current backstop causes the damage to the gear of speed reducer when using easily, leads to life to reduce.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a non-return device of a gear speed reducer.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a non-return device of a gear speed reducer comprises a gear box, a motor connected to the input end of the gear box through a coupler and an output shaft sleeved at the output end of the gear box, wherein a first installation box is welded on the outer wall of one side of the gear box, one end of the output shaft is connected to the outer wall of one side of the first installation box through a bearing, a second installation box is welded on the outer wall of the top of the gear box, a first non-return mechanism is arranged on the inner wall of one side of the first installation box and comprises a sleeve, the sleeve is welded on the inner wall of one side of the first installation box, two ends of the sleeve are respectively connected to the outer wall of the output shaft through bearings, a sliding groove is formed in the outer wall of the sleeve along the length direction, a sliding block is arranged in the sliding groove in a sliding mode, an installation ring is sleeved on the outer wall of the sleeve and welded on the outer wall of the sliding block, and fixed blocks which are distributed at equal intervals are welded on the outer wall of one side of the installation ring, the outer wall of the sleeve between the first installation box and the installation ring is sleeved with a first spring, the outer wall of one end, close to the installation ring, of the output shaft is sleeved with a driving gear, the outer wall of one side, close to the installation ring, of the driving gear is welded with first clamping blocks distributed at equal intervals, the inner wall of one side of the second installation box is connected with a transmission shaft through a bearing, the inner wall of one end of the second installation box is welded with a fixed plate, the transmission shaft is connected onto the outer wall of one side of the fixed plate through a bearing, the outer wall of one end, far away from the second installation box, of the transmission shaft is sleeved with a driven gear, the outer wall, located in the second installation box, of the transmission shaft is sleeved with two fixing rings, the outer walls of the two fixing rings are welded with second clamping blocks distributed at equal intervals, two sides of the two fixing rings are respectively provided with a second locking mechanism, each second locking mechanism comprises a supporting plate, and the supporting plate is welded on the outer wall of the top of the gear box, the outer wall of one side of the supporting plate is connected with a connecting rod through a bearing, the outer wall of one end, close to the supporting plate, of the connecting rod is sleeved with a sliding ring, and the outer wall of one end, close to the sliding ring, of the connecting rod is sleeved with a second spring.

Preferably, the first installation box and the second installation box are provided with openings on the outer wall of the top, a top cover is hinged to the inner wall of one side of each opening, a handle of a U-shaped structure is welded to the outer wall of one side of the top cover, a rubber ring is sleeved on the outer wall of the handle, and anti-skidding protrusions distributed at equal intervals are arranged on the outer wall of the rubber ring.

Preferably, the size of the fixing block is matched with that of the first clamping block, and the fixing block is matched with the first clamping block in a locking mode.

Preferably, the driven gear is meshed with the driving gear, and the driven gear is in transmission fit with the driving gear.

Preferably, a through hole is formed in the outer wall of one side of the second installation box, the connecting rod is slidably installed in the through hole, and a limiting block is welded to the outer wall of one end, located outside the second installation box, of the connecting rod.

Preferably, the outer wall of one end, close to the support plate, of the connecting rod is an inclined plane, and the connecting rod and the second clamping block form locking fit.

The utility model has the advantages that:

1. the anti-clockwise rotation speed reducer is provided with a first check mechanism, when the output shaft rotates anticlockwise, the output shaft drives the driving gear to rotate, a first clamping block on one side of the driving gear can slide along an inclined plane of the fixed block to further extrude the fixed block and the mounting ring, the mounting ring moves to extrude a first spring and simultaneously enables the mounting ring to reset under the action of tension of the first spring, when the output shaft rotates clockwise, the first clamping block is contacted with two planes of the fixed block, so that the output shaft cannot rotate clockwise, the speed reducer cannot rotate reversely, the driving gear is prevented from being damaged due to the end overturning of the motor, and the service life of the driving gear is prolonged;

2. be provided with the contrary mechanism of second, the driving gear drives driven gear and rotates, driven gear drives transmission shaft anticlockwise rotation, the transmission shaft drives two solid fixed rings and second fixture block rotation, the second fixture block slides along the inclined plane of connecting rod one end, and then the extrusion connecting rod, make the transmission shaft can anticlockwise rotation, when the transmission shaft clockwise rotation, the plane of second fixture block is withstood by the connecting rod top, make the transmission shaft can't carry out clockwise rotation, can improve the contrary dynamics of ending of the contrary device of speed reducer, prevent gear and other annex damages, the security has been improved.

Drawings

Fig. 1 is a schematic perspective view of a non-return device of a gear reducer according to the present invention;

fig. 2 is a schematic perspective view of a first mounting box and a second mounting box of a non-return device of a gear reducer according to the present invention;

fig. 3 is a schematic perspective view of a first check mechanism of a check device of a gear reducer according to the present invention;

fig. 4 is an enlarged schematic structural view of a point a in fig. 3 according to the present invention;

fig. 5 is a schematic perspective view of a transmission shaft and a second check mechanism of a check device of a gear reducer according to the present invention;

fig. 6 is a schematic view of a three-dimensional structure of a second check mechanism of a check device of a gear reducer according to the present invention.

In the figure: the gear box comprises a gear box 1, a motor 2, an output shaft 3, a first mounting box 4, a second mounting box 5, a top cover 6, a sleeve 7, a sliding block 8, a mounting ring 9, a fixing block 10, a first spring 11, a driving gear 12, a first clamping block 13, a transmission shaft 14, a fixing plate 15, a driven gear 16, a fixing ring 17, a second clamping block 18, a supporting plate 19, a connecting rod 20, a sliding ring 21, a second spring 22 and a limiting block 23.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-6, a non-return device of a gear reducer comprises a gear box 1, a motor 2 connected to an input end of the gear box 1 through a coupler, and an output shaft 3 sleeved at an output end of the gear box 1, wherein a first installation box 4 is welded on an outer wall of one side of the gear box 1, one end of the output shaft 3 is connected to an outer wall of one side of the first installation box 4 through a bearing, a second installation box 5 is welded on an outer wall of the top of the gear box 1, openings are formed in outer walls of the tops of the first installation box 4 and the second installation box 5, a top cover 6 is hinged to an inner wall of one side of each opening, a handle in a U-shaped structure is welded on an outer wall of one side of the top cover 6, a rubber ring is sleeved on an outer wall of the handle, anti-slip protrusions distributed at equal intervals are arranged on the outer wall of the rubber ring, a first non-return mechanism is arranged on an inner wall of one side of the first installation box 4, and comprises a sleeve 7, the sleeve 7 is welded on the inner wall of one side of the first installation box 4, two ends of the sleeve 7 are respectively connected to the outer wall of the output shaft 3 through bearings, a sliding groove is formed in the outer wall of the sleeve 7 along the length direction, a sliding block 8 is slidably installed in the sliding groove, an installation ring 9 is sleeved on the outer wall of the sleeve 7, the installation ring 9 is welded on the outer wall of the sliding block 8, fixed blocks 10 distributed at equal intervals are welded on the outer wall of one side of the installation ring 9, a first spring 11 is sleeved on the outer wall of the sleeve 7 between the first installation box 4 and the installation ring 9, a driving gear 12 is sleeved on the outer wall of one end, close to the installation ring 9, of the output shaft 3, a first clamping block 13 distributed at equal intervals is welded on the outer wall of one side, the size of the fixed block 10 is matched with the size of the first clamping block 13, and the fixed block 10 and the first clamping block 13 form locking matching, the speed reducer cannot rotate reversely, the driving gear is prevented from being damaged due to the overturning of the motor end, and the service life of the driving gear is prolonged;

the inner wall of one side of the second installation box 5 is connected with a transmission shaft 14 through a bearing, the inner wall of one end of the second installation box 5 is welded with a fixing plate 15, the transmission shaft 14 is connected with the outer wall of one side of the fixing plate 15 through a bearing, the outer wall of one end, far away from the second installation box 5, of the transmission shaft 14 is sleeved with a driven gear 16, the driven gear 16 is meshed with a driving gear 12, the driven gear 16 and the driving gear 12 form transmission fit, the outer wall, located in the second installation box 5, of the transmission shaft 14 is sleeved with two fixing rings 17, the outer walls of the two fixing rings 17 are welded with second clamping blocks 18 distributed at equal intervals, two sides of the two fixing rings 17 are respectively provided with a second locking mechanism, each second locking mechanism comprises a support plate 19, the support plate 19 is welded on the outer wall of the top of the gear box 1, and the outer wall of one side of the support plate 19 is connected with a connecting rod 20 through a bearing, the outer wall of one end, close to the supporting plate 19, of the connecting rod 20 is an inclined plane, the connecting rod 20 and the second fixture block 18 form locking fit, the outer wall of one end, close to the supporting plate 19, of the connecting rod 20 is sleeved with the sliding ring 21, the outer wall of one end, close to the sliding ring 21, of the connecting rod 20 is sleeved with the second spring 22, the non-return force of a non-return device of the speed reducer can be improved, damage to gears and other accessories is prevented, and safety is improved;

a through hole is formed in the outer wall of one side of the second installation box 5, the connecting rod 20 is slidably installed in the through hole, and a limiting block 23 is welded on the outer wall of one end, located outside the second installation box 5, of the connecting rod 20.

The working principle is as follows: when the output shaft 3 rotates counterclockwise, the output shaft 3 drives the driving gear 12 to rotate, the first fixture block 13 on one side of the driving gear 12 slides along the inclined plane of the fixing block 10, so as to extrude the fixing block 10 and the mounting ring 9, the mounting ring 9 moves to extrude the first spring 11, and simultaneously the mounting ring 9 is reset under the tension of the first spring 11, the driving gear 12 drives the driven gear 16 to rotate, the driven gear 16 drives the transmission shaft 14 to rotate counterclockwise, the transmission shaft 14 drives the two fixing rings 17 and the second fixture block 18 to rotate, the second fixture block 18 slides along the inclined plane at one end of the connecting rod 20, so as to extrude the connecting rod 20, so that the transmission shaft 14 can rotate counterclockwise, when the output shaft 3 rotates clockwise, the first fixture block 13 contacts with the two planes of the fixing block 10, so that the output shaft 3 cannot rotate clockwise, and further the speed reducer cannot rotate reversely, at this time, the plane of the second latch 18 is pressed against the top of the connecting rod 20, so that the transmission shaft 14 cannot rotate clockwise.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are 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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A non-return device of a gear speed reducer comprises a gear box (1), a motor (2) connected to the input end of the gear box (1) through a coupler and an output shaft (3) sleeved at the output end of the gear box (1), and is characterized in that a first installation box (4) is welded on the outer wall of one side of the gear box (1), one end of the output shaft (3) is connected to the outer wall of one side of the first installation box (4) through a bearing, a second installation box (5) is welded on the outer wall of the top of the gear box (1), a first non-return mechanism is arranged on the inner wall of one side of the first installation box (4), the first non-return mechanism comprises a sleeve (7), the sleeve (7) is welded on the inner wall of one side of the first installation box (4), two ends of the sleeve (7) are respectively connected to the outer wall of the output shaft (3) through bearings, and a sliding groove is formed in the outer wall of the sleeve (7) along the length direction, and a sliding block (8) is arranged in the sliding groove in a sliding manner, a mounting ring (9) is sleeved on the outer wall of the sleeve (7), the mounting ring (9) is welded on the outer wall of the sliding block (8), fixed blocks (10) distributed at equal intervals are welded on the outer wall of one side of the mounting ring (9), a first spring (11) is sleeved on the outer wall of the sleeve (7) between the first mounting box (4) and the mounting ring (9), a driving gear (12) is sleeved on the outer wall of one end, close to the mounting ring (9), of the output shaft (3), a first clamping block (13) distributed at equal intervals is welded on the outer wall of one side, close to the mounting ring (9), of the driving gear (12), a transmission shaft (14) is connected on the inner wall of one side of the second mounting box (5) through a bearing, a fixed plate (15) is welded on the inner wall of one end of the second mounting box (5), and the transmission shaft (14) is connected on the outer wall of one side of the fixed plate (15) through a bearing, driven gear (16) have been cup jointed on the one end outer wall that second install bin (5) was kept away from in transmission shaft (14), two solid fixed ring (17) have been cup jointed on the outer wall that transmission shaft (14) is located second install bin (5), and all weld on two solid fixed ring (17) outer walls second fixture block (18) that the equidistance distributes, two gu fixed ring (17) both sides all are equipped with second locking mechanism, second locking mechanism includes backup pad (19), backup pad (19) weld on gear box (1) top outer wall, be connected with connecting rod (20) through the bearing on backup pad (19) one side outer wall, connecting rod (20) have been cup jointed sliding ring (21) on being close to the one end outer wall of backup pad (19), the cover is equipped with second spring (22) on connecting rod (20) is close to the one end outer wall of sliding ring (21).

2. The non-return device of the gear reducer according to claim 1, wherein the first mounting box (4) and the second mounting box (5) are provided with openings on the outer wall of the top portion, a top cover (6) is hinged to the inner wall of one side of each opening, a handle of a U-shaped structure is welded to the outer wall of one side of each top cover (6), rubber rings are sleeved on the outer walls of the handles, and anti-slip protrusions are distributed on the outer walls of the rubber rings at equal intervals.

3. The backstop device of the gear reducer according to claim 1, wherein the size of the fixed block (10) is matched with that of the first clamping block (13), and the fixed block (10) is in locking fit with the first clamping block (13).

4. The backstop device for a gear reducer according to claim 1, characterized in that the driven gear (16) and the driving gear (12) are meshed with each other, and the driven gear (16) and the driving gear (12) form a transmission fit.

5. The non-return device of the gear reducer according to claim 1, wherein a through hole is formed in an outer wall of one side of the second mounting box (5), the connecting rod (20) is slidably mounted in the through hole, and a limiting block (23) is welded to an outer wall of one end, located outside the second mounting box (5), of the connecting rod (20).

6. The backstop device for the gear reducer according to claim 1, wherein the outer wall of one end of the connecting rod (20) close to the support plate (19) is an inclined surface, and the connecting rod (20) and the second fixture block (18) form locking fit.