CN215634735U

CN215634735U - Electric transmission mechanism of chassis vehicle

Info

Publication number: CN215634735U
Application number: CN202121711033.9U
Authority: CN
Inventors: 黄分田; 黄鑫
Original assignee: Shengzhongyi Power Technology Co ltd
Current assignee: Shengzhongyi Power Technology Co ltd
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2022-01-25
Anticipated expiration: 2031-07-26

Abstract

The utility model discloses an electric transmission mechanism of a chassis truck, which comprises a motor and a transmission case, wherein the motor comprises a motor shaft, the motor shaft is arranged on one side wall of the transmission case in a penetrating manner, a first gear, a clutch component and a fourth gear are arranged in the transmission case, the first gear is linked with the motor shaft, the clutch component comprises a second gear and a third gear, the second gear is linked with the first gear, the third gear is linked with the fourth gear, and two opposite side walls of the transmission case are provided with output shafts which are linked with the fourth gear and are coaxial in a penetrating manner. The transmission mechanism is modularized, the installation is convenient, the later-stage maintenance and the replacement are convenient, the transmission box can protect internal components, the normal use of the electric transmission mechanism is ensured, and the two ends of the output shaft penetrating out of the transmission box can be connected with an external padlock component and an external transmission rod respectively.

Description

Electric transmission mechanism of chassis vehicle

Technical Field

The utility model belongs to the technical field of switch equipment, and particularly relates to an electric transmission mechanism of a chassis truck.

Background

In the existing draw-out switchgear, in order to facilitate the advance and withdrawal of the circuit breaker, a chassis is generally used to carry components such as the circuit breaker, and the components are moved forward or backward on a track in the switchgear through a traveling wheel mounted on the chassis.

In order to realize the movement of the chassis truck in the switch device, the current common chassis truck mostly adopts a manual operation mechanism, namely, a screw rod is arranged on the chassis truck, a screw nut fixed on a chassis frame is sleeved on the screw rod, a handle is sleeved on the end part of the screw rod, and the handle is adopted to drive the screw rod to rotate, so that the screw nut drives the chassis truck to move back and forth, thereby realizing the propulsion and the exit of the circuit breaker chassis truck. The manual chassis vehicle adopts a manual mode of manually operating the handle, has the defects of low working efficiency, labor-consuming operation, unsuitability for remote control operation and the like, and is not in accordance with the development of electric power automation.

Along with technical development, the electrodynamic type chassis car has also appeared among the prior art, and the electrodynamic type chassis car includes electric drive mechanism usually, but current electric drive mechanism structure is complicated usually, and is bulky, and current electric drive mechanism installs directly on the chassis car usually moreover, maintenance and the change in inconvenient later stage.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides the modular electric transmission mechanism of the chassis truck, which has a simpler structure and is convenient to maintain and replace subsequently.

In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides a chassis car electric drive mechanism, includes the motor, the motor includes the motor shaft, still includes the transmission case, the motor shaft is worn to establish on a lateral wall of transmission case, be equipped with first gear, clutch components and fourth gear in the transmission case, first gear and motor shaft interlock, clutch components includes second gear and third gear, second gear and first gear interlock, third gear and fourth gear interlock, wear to be equipped with on the relative both sides wall of transmission case and interlock and coaxial output shaft with fourth gear.

By adopting the scheme, the transmission mechanism is modularized, the installation is convenient, the later maintenance and the replacement are convenient, the transmission box can protect the internal components, the normal use of the electric transmission mechanism is ensured, and the output shaft penetrates out of the two ends of the transmission box and can be connected with the external padlock component and the external transmission rod respectively.

As a further arrangement of the utility model, the clutch assembly further comprises a positioning shaft and a clutch sleeved on the positioning shaft, wherein a clamp spring is hooped on the outer wall of the clutch, the clamp spring comprises a limiting end capable of limiting with the inner wall of the transmission case, the second gear and the third gear are both sleeved on the positioning shaft and are respectively arranged at two ends of the clutch, a plurality of limiting balls which are rotationally symmetrical along the positioning shaft are arranged between the second gear and the clutch, a first concave cavity for embedding the limiting balls is arranged on the surface of the second gear facing the clutch, a second concave cavity for embedding the limiting balls is arranged on the surface of the clutch facing the second gear, the shapes of the first concave cavity and the second concave cavity are both smaller than or equal to the spherical crown shape of a hemisphere, the third gear comprises a cylindrical extension part extending towards the clutch, the extension part is sleeved on the positioning shaft, and a pressure spring is arranged between the extension part and the positioning shaft, the two ends of the pressure spring are respectively abutted against the bottoms of the clutch and the extension part, a convex block is arranged on the surface of the clutch facing the third gear, and a groove for embedding the convex block is arranged on the surface of the extension part facing the clutch.

Adopt above-mentioned scheme, when out of work, first cavity and second cavity are inlayed simultaneously to spacing ball, when operating through the motor, the second gear rotates under the drive of first gear, frictional force and the spacing messenger clutch that brings through the pressure spring rotate along with the second gear through spacing of spacing ball, it is spacing to limit end and the inner wall formation of transmission case, the second gear continues to rotate, make first cavity and second cavity dislocation appear, extrude spacing ball from first cavity and/or second cavity, make the clutch close to the third gear, the clutch continues to rotate under the drive of second gear, until the lug embedding recess, make third gear and clutch interlock, finally through fourth gear control output shaft rotation. When the first gear completely stops rotating, the limiting ball resets, the clutch moves in the direction away from the third gear under the action of the elastic force of the pressure spring, the matching of the convex block and the groove is removed, and the separation work is completed.

The clutch assembly can be operated in an electric mode and a manual mode according to actual requirements. When an operator performs manual operation, only the third gear rotates along with the fourth gear, and the condition that the motor shaft is damaged due to the manual operation is prevented.

As a further arrangement of the utility model, the clutch assembly further comprises a limiting shaft sleeve sleeved on the positioning shaft, the clutch and the compression spring are sleeved on the limiting shaft sleeve, and two ends of the limiting shaft sleeve are respectively abutted against the second gear and the bottom of the extension part.

By adopting the scheme, the distance between the second gear and the third gear is ensured, and the normal use of the clutch assembly is ensured.

As a further arrangement of the utility model, a fixing plate with an end face perpendicular to the motor shaft is arranged in the transmission case, the first gear comprises a cylindrical fixing part, an inner spline is arranged on the inner wall of the fixing part, an outer spline matched with the inner spline is arranged on the outer wall of the motor shaft, and one end of the fixing part, which is far away from the motor, is arranged on the fixing plate in a penetrating manner.

Adopt above-mentioned scheme, the cooperation of internal spline and external spline makes the first gear of drive that the motor shaft can be better rotate, prevents to appear idle running, and the fixed part enables first gear to rotate more stably.

As a further arrangement of the present invention, the extending portion is disposed on the fixing plate in a penetrating manner, the end surface of the positioning shaft is perpendicular to the end surface of the fixing plate, one end of the positioning shaft is disposed on the side wall of the transmission case facing the motor in a penetrating manner, and the other end of the positioning shaft is fixedly connected to the extending portion.

By adopting the scheme, the clutch assembly can stably operate, and the preferred extension part and the positioning shaft are fixed through the pin shaft.

As a further arrangement of the present invention, the third gear and the fourth gear are both bevel gears, and the axis of the output shaft and the axis of the motor shaft are perpendicular to each other.

By adopting the scheme, the arrangement of the utility model is more reasonable.

As a further arrangement of the present invention, the output shaft includes a prism-shaped matching section, the fourth gear is sleeved on the matching section, an inner wall of the fourth gear is attached to the matching section, a step surface facing the fourth gear is disposed on an outer wall of the output shaft, and a spring is disposed between the step surface and the fourth gear.

By adopting the scheme, the matching section is matched with the fourth gear, the fourth gear is ensured to smoothly drive the output shaft to rotate, and the spring ensures that the utility model can smoothly complete force transmission during electric and manual operation.

The utility model is further described below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is an exploded view of an embodiment of the present invention;

FIG. 3 is a diagram of an embodiment of the present invention;

FIG. 4 is a schematic view of a clutch assembly according to an embodiment of the present invention;

fig. 5 is a cross-sectional view a-a of fig. 4.

The motor 1, a motor shaft 11, an external spline 111, a transmission case 2, a first gear 3, a fixing part 31, an internal spline 311, a clutch component 4, a positioning shaft 41, a second gear 42, a first cavity 421, a clutch 43, a snap spring 431, a limiting end 4311, a second cavity 432, a projection 433, a third gear 44, an extending part 441, a groove 4411, a limiting ball 45, a pressure spring 46, a limiting shaft sleeve 47, a fourth gear 5, a fixing plate 6, an output shaft 7, a matching section 71, a step surface 72, a spring 8 and a padlock component 9.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that, unless otherwise specified, the orientations or positional relationships indicated in the description as terms of "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Specific embodiments of the utility model are shown in the drawings.

The utility model provides a chassis car electric drive mechanism, includes motor 1 and transmission case 2, and motor 1 includes motor shaft 11, and motor shaft 11 wears to establish on the lateral wall of transmission case 2, is equipped with first gear 3, clutch module 4 and fourth gear 5 in the transmission case 2, and first gear 3 links with motor shaft 11, and clutch module 4 includes location axle 41, second gear 42, clutch 43 and third gear 44, and second gear 42, clutch 43 and third gear 44 overlap in proper order and establish on location axle 41.

A clamp spring 431 is hooped on the outer wall of the clutch 43, the clamp spring 431 includes a limiting end 4311 capable of limiting with the inner wall of the transmission case 2, a plurality of limiting balls 45 which are rotationally symmetrical along the positioning shaft 41 are arranged between the second gear 42 and the clutch 43, in this embodiment, four limiting balls 45 are provided, a first concave cavity 421 into which the limiting balls 45 are embedded is arranged on the surface of the second gear 42 facing the clutch 43, a second concave cavity 432 into which the limiting balls 45 are embedded is arranged on the surface of the clutch 43 facing the second gear 42, the shapes of the first concave cavity 421 and the second concave cavity 432 are both smaller than or equal to the spherical crown shape of a hemisphere, the third gear 44 includes a cylindrical extension 441 extending towards the clutch 43, in this embodiment, the extension 441 and the positioning shaft 41 are fixed by a pin shaft, the extension 441 is sleeved on the positioning shaft 41, a pressure spring 46 is arranged between the extension 441 and the positioning shaft 41, two ends of the pressure spring 46 respectively abut against the bottoms of the clutch 43 and the extension 441, the surface of the clutch 43 facing the third gear 44 is provided with a projection 433, and the surface of the extension 441 facing the clutch 43 is provided with a groove 4411 into which the projection 433 can be inserted.

The second gear 42 is linked with the first gear 3, the third gear 44 is linked with the fourth gear 5, and the output shaft 7 which is linked with and coaxial with the fourth gear 5 is arranged on the two opposite side walls of the transmission case 2 in a penetrating way.

When the motor 1 is operated, the second gear 42 is driven by the first gear 3 to rotate, the clutch 43 rotates along with the second gear 42 through the friction force brought by the pressure spring 46 and the limit of the limiting ball 45 until the limit end 4311 forms limit with the inner wall of the transmission case 2, the second gear 42 continues to rotate, the first cavity 421 and the second cavity 432 are dislocated, the limiting ball 45 is extruded out of the first cavity 421 and/or the second cavity 432, the clutch 43 approaches the third gear 44, the clutch 43 continues to rotate under the drive of the second gear 42 until the bump 433 is embedded into the groove 4411, the third gear 44 and the clutch 43 are linked, and finally the output shaft 7 is controlled to rotate through the fourth gear 5. After the first gear 3 completely stops rotating, the limiting ball 45 is embedded into the first concave cavity 421 and the second concave cavity 432 again, the clutch 43 moves in the direction away from the third gear 44 under the action of the elastic force of the pressure spring 46, the matching between the projection 433 and the groove 4411 is released, and the separation work is completed.

The presence of the clutch assembly 4 allows the present embodiment to be operated both electrically and manually depending on the actual requirements. When an operator performs manual operation, only the third gear 44 rotates along with the fourth gear 5, so that the motor shaft 11 is prevented from being damaged due to the manual operation.

This embodiment is with drive mechanism modularization, and is easy to assemble, makes things convenient for later stage maintenance to change, and the transmission case 2 can protect the inner part subassembly, guarantees electric drive mechanism's normal use, and output shaft 7 wears out the both ends of transmission case 2 and can be connected with outside padlock subassembly 9 and outside transfer line respectively.

The clutch assembly 4 further comprises a limiting shaft sleeve 47 sleeved on the positioning shaft 41, the clutch 43 and the pressure spring 46 are sleeved on the limiting shaft sleeve 47, and two ends of the limiting shaft sleeve 47 are respectively abutted to the bottoms of the second gear 42 and the extension portion 441. The distance between the second gear 42 and the third gear 44 is ensured, and the normal use of the clutch assembly 4 is ensured.

Be equipped with terminal surface and the 11 mutually perpendicular's of motor shaft fixed plate 6 in the transmission case 2, first gear 3 includes the fixed part 31 of tube-shape, is equipped with internal spline 311 on the inner wall of fixed part 31, be equipped with on the outer wall of motor shaft 11 with internal spline 311 complex external spline 111, the one end that motor 1 was kept away from to fixed part 31 is worn to establish on fixed plate 6, in this embodiment, is equipped with the axle sleeve between fixed part 31 and the fixed plate 6. The cooperation of internal spline 311 and external spline 111 makes the first gear 3 of drive that motor shaft 11 can be better rotate, prevents to appear idle running, and fixed part 31 enables first gear 3 and rotates more stably.

The extending portion 441 is disposed on the fixing plate 6, the positioning shaft 41 is perpendicular to the end surface of the fixing plate 6, one end of the positioning shaft 41 is disposed on the side wall of the transmission case 2 facing the motor 1, in this embodiment, a shaft sleeve is disposed between the positioning shaft 41 and the side wall of the motor 1, and the other end is fixedly connected to the extending portion 441. The clutch assembly 4 can stably operate, and in the embodiment, the extending portion 441 is fixed to the positioning shaft 41 by a pin.

The third gear 44 and the fourth gear 5 are both conical gears, and the axis of the output shaft 7 and the axis of the motor shaft 11 are perpendicular to each other. The arrangement of the embodiment is more reasonable.

The output shaft 7 comprises a prismatic matching section 71, the fourth gear 5 is sleeved on the matching section 71, the inner wall of the fourth gear 5 is attached to the matching section 71, a step surface 72 facing the fourth gear 5 is arranged on the outer wall of the output shaft 7, and a spring 8 is arranged between the step surface 72 and the fourth gear 5. The matching section 71 is matched with the fourth gear 5 to ensure that the fourth gear 5 smoothly drives the output shaft 7 to rotate, and the spring 8 ensures that the force transmission can be smoothly completed in the electric and manual operation processes.

The present invention is not limited to the above embodiments, and those skilled in the art can implement the present invention in other embodiments according to the disclosure of the present invention, or make simple changes or modifications on the design structure and idea of the present invention, and fall into the protection scope of the present invention.

Claims

1. The utility model provides a chassis car electric drive mechanism, includes the motor, the motor includes the motor shaft, its characterized in that: the motor shaft penetrates through one side wall of the transmission box, a first gear, a clutch component and a fourth gear are arranged in the transmission box, the first gear is linked with the motor shaft, the clutch component comprises a second gear and a third gear, the second gear is linked with the first gear, the third gear is linked with the fourth gear, and output shafts which are linked with the fourth gear and coaxial with the fourth gear are arranged on two opposite side walls of the transmission box in a penetrating mode.

2. The electric transmission mechanism of the chassis truck as claimed in claim 1, wherein: the clutch assembly further comprises a positioning shaft and a clutch sleeved on the positioning shaft, a clamp spring is hooped on the outer wall of the clutch and comprises a limiting end capable of forming limiting with the inner wall of the transmission case, the second gear and the third gear are sleeved on the positioning shaft and are respectively arranged at two ends of the clutch, a plurality of limiting balls rotationally symmetrical along the positioning shaft are arranged between the second gear and the clutch, a first concave cavity for embedding the limiting balls is formed in the surface of the second gear facing the clutch, a second concave cavity for embedding the limiting balls is formed in the surface of the clutch facing the second gear, the first concave cavity and the second concave cavity are both in spherical cap shapes smaller than or equal to hemispheres, the third gear comprises a cylindrical extension part extending towards the clutch, the extension part is sleeved on the positioning shaft and a pressure spring is arranged between the extension part and the positioning shaft, the two ends of the pressure spring are respectively abutted against the bottoms of the clutch and the extension part, a convex block is arranged on the surface of the clutch facing the third gear, and a groove for embedding the convex block is arranged on the surface of the extension part facing the clutch.

3. The electric transmission mechanism of the chassis truck as claimed in claim 2, wherein: the clutch assembly further comprises a limiting shaft sleeve sleeved on the positioning shaft, the clutch and the compression spring sleeve are arranged on the limiting shaft sleeve, and two ends of the limiting shaft sleeve are respectively abutted to the bottoms of the second gear and the extension portion.

4. The electric transmission mechanism of the chassis truck as claimed in claim 3, wherein: the gear box is characterized in that a fixing plate with an end face perpendicular to a motor shaft is arranged in the transmission box, the first gear comprises a cylindrical fixing portion, an internal spline is arranged on the inner wall of the fixing portion, an external spline matched with the internal spline is arranged on the outer wall of the motor shaft, and one end, far away from the motor, of the fixing portion penetrates through the fixing plate.

5. The electric transmission mechanism of the chassis truck as claimed in claim 4, wherein: the extension portion penetrates through the fixed plate, the positioning shaft is perpendicular to the end face of the fixed plate, one end of the positioning shaft penetrates through the side wall, facing the motor, of the transmission case, and the other end of the positioning shaft is fixedly connected with the extension portion.

6. The electric transmission mechanism of the chassis truck as claimed in claim 5, wherein: the third gear and the fourth gear are both conical gears, and the axis of the output shaft is perpendicular to the axis of the motor shaft.

7. The electric transmission mechanism of the chassis truck as claimed in claim 6, wherein: the output shaft comprises a prismatic matching section, the fourth gear is sleeved on the matching section, the inner wall of the fourth gear is attached to the matching section, a step surface facing the fourth gear is arranged on the outer wall of the output shaft, and a spring is arranged between the step surface and the fourth gear.