CN219325828U

CN219325828U - Positioning structure for self-positioning of rail wheel type cart

Info

Publication number: CN219325828U
Application number: CN202320816106.3U
Authority: CN
Inventors: 郭满志; 江关喜; 王玎; 张维龙; 余洲; 黄茂邦; 谭金荣; 周红; 黄启旁
Original assignee: Guizhou Panjiang Power Investment Tianneng Coking Co ltd
Current assignee: Guizhou Panjiang Power Investment Tianneng Coking Co ltd
Priority date: 2023-04-13
Filing date: 2023-04-13
Publication date: 2023-07-11
Anticipated expiration: 2033-04-13

Abstract

The utility model relates to a positioning structure for self-positioning of a rail wheel type cart, which is arranged in front of a driving wheel of the cart and comprises an encoder bracket and an encoder; the encoder bracket comprises a bracket body, an encoder wheel and a spring, wherein one end of the bracket body is hinged with the underframe of the cart, the other end of the bracket body is provided with the encoder wheel, one end of the spring is arranged on the underframe of the cart, the other end of the spring is arranged on the bracket body, the encoder wheel is tightly attached to a track under the tension action of the spring, and the encoder wheel rotates along the track under the action of the cart; the encoder is mounted on the encoder wheel for counting the number of revolutions of the encoder wheel. The positioning structure can eliminate the position error generated by skidding during driving and realize accurate positioning.

Description

Positioning structure for self-positioning of rail wheel type cart

Technical Field

The utility model relates to the technical field of rail wheel type trolleys, in particular to a positioning structure for self-positioning of a rail wheel type trolley.

Background

The existing track wheel type cart is automatically positioned by an encoder after automatically positioning and running, and the encoder is arranged behind a motor fan for driving wheels or inside a motor and is used for detecting the moving distance of the cart so as to realize positioning. However, since the rail wheel type cart is often heavy, wheels are made of metal, and the surface friction force is small, when the rail wheel type cart is pushed to move, the wheels are easy to slip, and when the wheels slip, the motor drives the wheels to rotate, but the wheels do not move in the process of slipping, or the moving distance is inconsistent with the actual distance detected by an encoder arranged on the motor, so that the positioning is inaccurate.

Disclosure of Invention

The utility model aims to provide a positioning structure for self-positioning of a rail wheel type cart, which can be directly arranged on the existing rail wheel type cart, so that the problem that the cart is inaccurate in positioning and cannot be accurately positioned due to skidding is solved.

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

the positioning structure for self-positioning of the rail wheel type cart is arranged in front of a cart driving wheel and comprises an encoder bracket and an encoder; the encoder bracket comprises a bracket body, an encoder wheel and a spring, wherein one end of the bracket body is hinged with the underframe of the cart, the other end of the bracket body is provided with the encoder wheel, one end of the spring is arranged on the underframe of the cart, the other end of the spring is arranged on the bracket body, the encoder wheel is tightly attached to a track under the tension action of the spring, and the encoder wheel rotates along the track under the action of the cart; the encoder is mounted on the encoder wheel for counting the number of revolutions of the encoder wheel.

As the optimization of the utility model, the encoder arranged on the encoder wheel is electrically connected with the whole vehicle control system of the cart and is used for transmitting the acquired data to the whole vehicle control system, and the whole vehicle control system calculates the actual moving distance of the cart according to the data transmitted by the encoder.

As a preferred aspect of the present utility model, the encoder wheel includes a wheel body, a bearing, and a connection shaft; the wheel body is a unilateral or bilateral rail wheel, a bearing is arranged at the axle center position of the rail wheel, a connecting shaft is arranged at the inner ring of the bearing, one end of the connecting shaft is fixedly connected with the bracket body, the other end of the connecting shaft is connected with the central shaft of the encoder, and the main body of the encoder is fixedly arranged on the rail wheel.

The utility model has the advantages and beneficial effects that:

1. the utility model is provided with a second encoder in front of the driving wheel based on the original encoder, the second encoder is arranged on a special encoder bracket, the special encoder bracket consists of a bracket body, an encoder wheel and a spring, the encoder is arranged on the encoder wheel, and when the encoder wheel rotates, the encoder is driven to rotate so as to calculate the distance.

2. The spring is arranged on the encoder bracket, the tension of the spring enables the encoder wheel to be tightly attached to the track, and when the cart moves, the wheel provided with the encoder is pushed to rotate, so that the encoder is driven to rotate; when the cart is in slipping, the cart will rotate in situ, and the wheel provided with the encoder cannot be pushed to rotate, so that the position error caused by slipping is eliminated, and accurate positioning is realized.

3. The positioning structure of the utility model has simple structure and convenient installation, can be directly installed on the existing rail wheel type cart, and after the positioning structure of the utility model is installed on the existing cart, the encoder installed on the original motor can be only used for speed control to control the acceleration and the deceleration of the cart.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a positioning structure for self-positioning of a rail wheel cart according to the present utility model;

FIG. 2 is a schematic view of an encoder wheel of the present utility model;

reference numerals: the driving wheel A, the underframe B, the track C, the encoder bracket 1, the encoder 2, the bracket body 11, the encoder wheel 12, the spring 13, the wheel body 121 and the connecting shaft 122.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the two components can be mechanically connected, can be directly connected or can be indirectly connected through an intermediate medium, and can be communicated with each other. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

As shown in fig. 1 and 2, the present embodiment provides a positioning structure for self-positioning of a rail wheel type cart, which is mounted in front of a driving wheel a of the cart and comprises an encoder bracket 1 and an encoder 2; the encoder bracket 1 comprises a bracket body 11, an encoder wheel 12 and a spring 13, wherein one end of the bracket body 11 is hinged with a chassis B of a cart, the other end of the bracket body is provided with the encoder wheel 12, one end of the spring 13 is arranged on the chassis B of the cart, the other end of the spring 13 is arranged on the bracket body 11, the encoder wheel 12 is tightly attached to a track C under the tension action of the spring 13, and the encoder wheel 12 rotates along the track C under the action of the cart; the encoder 2 is mounted on the encoder wheel 12 for counting the number of revolutions of the encoder wheel 12.

Further, in the present embodiment, the encoder wheel 12 includes a wheel body 121, a bearing, and a connection shaft 122; the wheel body 121 is a unilateral or bilateral rail wheel, the tread of the rail wheel is in contact with the rail C, the rail wheel rotates along the rail, a bearing is arranged at the axle center position of the rail wheel, the inner ring of the bearing is provided with a connecting shaft 122, one end of the connecting shaft 122 is fixedly connected with the bracket body 11, the other end of the connecting shaft is connected with the central shaft of the encoder, and the main body of the encoder 2 is fixedly arranged on the rail wheel.

Further, in this embodiment, the encoder 2 mounted on the encoder wheel 1 is electrically connected to a whole vehicle control system of the cart, and is configured to send the collected data to the whole vehicle control system, where the whole vehicle control system calculates the actual moving distance of the cart according to the data sent by the encoder 2.

The foregoing is a specific embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present utility model, and it is intended to cover the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. The positioning structure for the self-positioning of the rail wheel type cart is characterized by being arranged in front of a driving wheel of the cart and comprising an encoder bracket and an encoder; the encoder bracket comprises a bracket body, an encoder wheel and a spring, wherein one end of the bracket body is hinged with the underframe of the cart, the other end of the bracket body is provided with the encoder wheel, one end of the spring is arranged on the underframe of the cart, the other end of the spring is arranged on the bracket body, the encoder wheel is tightly attached to a track under the tension action of the spring, and the encoder wheel rotates along the track under the action of the cart; the encoder is mounted on the encoder wheel for counting the number of revolutions of the encoder wheel.

2. The positioning structure for self-positioning of a rail wheel type cart according to claim 1, wherein the encoder mounted on the encoder wheel is electrically connected with a whole vehicle control system of the cart, and is used for transmitting the acquired data to the whole vehicle control system, and the whole vehicle control system calculates the actual moving distance of the cart according to the data transmitted by the encoder.

3. A positioning structure for self-positioning a rail wheel type cart according to claim 1, wherein said encoder wheel comprises a wheel body, a bearing, a connecting shaft; the wheel body is a unilateral or bilateral rail wheel, a bearing is arranged at the axle center position of the rail wheel, a connecting shaft is arranged at the inner ring of the bearing, one end of the connecting shaft is fixedly connected with the bracket body, the other end of the connecting shaft is connected with the central shaft of the encoder, and the main body of the encoder is fixedly arranged on the rail wheel.