CN218848076U

CN218848076U - Tail gas detection equipment with double-shaft variable wheel base adjusting structure

Info

Publication number: CN218848076U
Application number: CN202221976553.7U
Authority: CN
Inventors: 董玮; 龚天宇; 渠谨黛; 谷淼; 陈越; 刘金强; 刘星; 冯皓; 黄金山; 王海彬
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2023-04-11
Anticipated expiration: 2032-07-29

Abstract

The utility model particularly relates to a tail gas detection equipment with variable wheel base of biax adjusts structure. Comprises a front shaft chassis assembly, a rear shaft chassis assembly and a belt transmission device. The front axle chassis assembly comprises two front axle rotary drums, two adjustable position lateral limiting catch wheels, four front axle lateral limiting idler wheels and a front axle motor; the adjustable position lateral limiting stop wheel is arranged in front of the front shaft rotating drum, the lateral limiting idler wheels are arranged on two sides of the front shaft rotating drum, and the front shaft motor is arranged on the outer side of the front shaft chassis assembly. The rear axle chassis assembly comprises two rear axle rotary drums, two air exhaust devices, four rear axle lateral limiting idler wheels and a rear axle motor; the rear axle lateral limiting idler wheels are installed on two sides of the rear axle rotating drum, the air exhaust device is installed on the rear side of the rear axle rotating drum, and the rear axle motor is installed on the outer side of the rear axle chassis assembly. The front axle chassis assembly is connected with the rear axle chassis assembly through a slide rail. The belt transmission device is connected with a front shaft rotary drum of the front chassis assembly and a rear shaft rotary drum of the rear chassis assembly.

Description

Tail gas detection equipment with double-shaft variable wheel base adjusting structure

Technical Field

The utility model relates to a chassis dynamometer technical field, concretely relates to tail gas detection equipment with variable wheel base adjustment structure of biax.

Background

According to the GB18285-2018 regulation requirements, tail gas spot check work needs to be carried out on fuel vehicles which are off-line in a whole vehicle factory, and related data are uploaded to a national platform to provide data tracing information. At present, mainstream tail gas detection equipment is in a fixed wheelbase form or a single wheelbase adjustable form, and cannot adapt to compatibility detection of various vehicle types and two-drive/four-drive versions.

A single-shaft dynamometer or a fixed-wheel-base dynamometer is used for a general whole vehicle factory and a social detection line, a double-idle speed measurement scheme is adopted when a four-wheel drive vehicle is measured, and the tail gas change in the dynamic test process cannot be fed back in real time through a double-idle speed measurement mode.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the system designs the wheel base to be a function capable of being adjusted forwards and backwards, and provides an integrated solution of two-wheel drive and four-wheel drive vehicle types and variable wheel bases. The method can realize the steady-state working condition detection method and the simple transient working condition detection method of the four-wheel drive vehicle.

The utility model provides a tail gas detection device with a double-shaft variable wheelbase adjusting structure, which comprises a front shaft chassis assembly 1, a rear shaft chassis assembly 2 and a belt transmission device 3; the front axle chassis assembly 1 is connected with the rear axle chassis assembly 2 through a slide rail; the belt transmission device 3 is connected with a front axle rotary drum 11 of the front chassis assembly and a rear axle rotary drum 21 of the rear chassis assembly.

Further, the wheel base adjustment of the front axle chassis assembly 1 and the rear axle chassis assembly 2 is realized through the sliding of the rear axle chassis assembly 2, the wheel base adjustment is driven by a servo motor, and a ball screw mechanism is used for transmission.

Further, the front axle chassis assembly 1 comprises two front axle rotary drums 11, two adjustable position lateral limiting catch wheels 12, four front axle lateral limiting rollers 13 and a front axle motor 14; the adjustable position lateral limiting catch wheel 12 is installed in front of the front axle rotary drum 11, the lateral limiting idler wheels 13 are installed on two sides of the front axle rotary drum 11, and the front axle motor 14 is installed on the outer side of the front axle chassis assembly 1.

Further, the position of the adjustable position lateral limiting catch wheel 12 is adjusted according to the size of the wheel, so that the front-drive vehicle is prevented from laterally deviating on the test bed.

Further, the rear axle chassis assembly 2 comprises two rear axle rotary drums 21, two air exhaust devices 22, four rear axle lateral limiting rollers 23 and a rear axle motor 24; the rear axle lateral limiting rollers 23 are arranged on two sides of the rear axle rotary drum 21, the air exhaust device 22 is arranged on the rear side of the rear axle rotary drum 21, and the rear axle motor 24 is arranged on the outer side of the rear axle chassis assembly 2.

Further, when detecting tail gas, the front wheels run on the front axle drum 11, the rear wheels run on the rear axle drum 21, and the roller assemblies are used for simulating actual road running in a controllable environment.

Further, the belt transmission device 3 drives the front shaft rotary drum 11 and the rear shaft rotary drum 21 to move synchronously, the transmission pulley in the belt transmission device 3 drives the belt to move, and the movable pulley in the belt transmission device 3 enables the belt to keep a tensioning state through position movement.

Further, a clutch is arranged between the belt transmission system and the front shaft rotating drum 11 and the rear shaft rotating drum 21, so that the front shaft rotating drum 11 and the rear shaft rotating drum 21 can synchronously and respectively run.

The beneficial effects of the utility model are that: the specially designed double-shaft chassis dynamometer meets the automobile emission detection of a single-shaft driving and four-wheel driving (front-driving, intelligent four-wheel-driving and full-time four-wheel-driving vehicle test) simple working condition method. Compare in fixed wheel base and independent front axle dynamometer, the utility model discloses compatible more motorcycle types to can make the four-wheel drive vehicle pass through simple and easy operating mode method automobile emission and detect.

Drawings

FIG. 1 is a structural diagram of an exhaust gas detecting apparatus having a two-axis variable wheelbase adjusting structure;

FIG. 2 is a schematic view of the belt transmission device connected to the front and rear drums;

FIG. 3 is a schematic view of a belt drive;

FIG. 4 is a schematic view of an adjustable position lateral restraining catch wheel;

FIG. 5 is a schematic view of the lateral limiting rollers of the front and rear axles.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 simplification of description, but do not indicate or imply that the device or element referred to 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" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model provides a tail gas detection equipment with variable wheel base adjustment structure of biax, as shown in fig. 1, including front axle chassis assembly 1, rear axle chassis assembly 2 and belt drive 3.

As shown in fig. 1, the front axle chassis assembly 1 includes two front axle drums 11, two adjustable position lateral limiting catch wheels 12, four front axle lateral limiting rollers 13 and a front axle motor 14; the adjustable position lateral limiting catch wheel 12 is installed in front of the front axle rotary drum 11, the lateral limiting idler wheels 13 are installed on two sides of the front axle rotary drum 11, and the front axle motor 14 is installed on the outer side of the front axle chassis assembly 1.

As shown in fig. 1, the rear axle chassis assembly 2 includes two rear axle drums 21, two air exhaust devices 22, four rear axle lateral limiting rollers 23 and a rear axle motor 24; the rear axle lateral limiting rollers 23 are arranged on two sides of the rear axle rotary drum 21, the air exhaust device 22 is arranged on the rear side of the rear axle rotary drum 21, and the rear axle motor 24 is arranged on the outer side of the rear axle chassis assembly 2.

The front axle chassis assembly 1 is connected with the rear axle chassis assembly 2 through a sliding rail; the wheel base adjustment of the front axle chassis assembly 1 and the rear axle chassis assembly 2 is realized through the sliding of the rear axle chassis assembly 2, the wheel base adjustment is driven by a servo motor, and a ball screw mechanism is used for transmission.

As shown in fig. 2, the belt drive 3 connects the front axle drum 11 of the front chassis assembly and the rear axle drum 21 of the rear chassis assembly.

When the tail gas detection is carried out, front wheels run on the front axle rotary drum 11, rear wheels run on the rear axle rotary drum 21, and the roller assemblies are utilized to simulate actual road running in a controllable environment.

The adjustable position lateral limiting catch wheel 12 is shown in fig. 4, and the position is adjusted according to the size of the wheel, so that the front-drive vehicle is prevented from laterally deviating on the test bed.

The front axle lateral limiting idler wheel and the rear axle lateral limiting idler wheel are shown in fig. 5, so that the automobile can be effectively prevented from being laterally punched on the test bed.

The belt transmission device 3 drives the front shaft rotary drum 11 and the rear shaft rotary drum 21 to synchronously move, as shown in fig. 3, a transmission pulley in the belt transmission device 3 drives a belt to move, a movable pulley in the belt transmission device 3 enables the belt to keep a tensioning state through position movement, and the movable pulley and the rear shaft chassis assembly 2 synchronously move, so that the belt always keeps the tensioning state when the wheel base is adjusted.

Clutches are arranged between the belt transmission system and the front shaft rotating drum 11 and the rear shaft rotating drum 21, and synchronous operation and separate operation of the front shaft rotating drum 11 and the rear shaft rotating drum 21 are guaranteed.

Claims

1. The tail gas detection equipment with the double-shaft variable wheelbase adjusting structure is characterized by comprising a front shaft chassis assembly (1), a rear shaft chassis assembly (2) and a belt transmission device (3); the front shaft chassis assembly (1) is connected with the rear shaft chassis assembly (2) through a sliding rail; the belt transmission device (3) is connected with a front shaft rotary drum (11) of the front chassis assembly and a rear shaft rotary drum (21) of the rear chassis assembly.

2. The exhaust gas detection apparatus with the dual-axis variable wheelbase adjustment structure according to claim 1, wherein the wheelbase adjustment of the front axle chassis assembly (1) and the rear axle chassis assembly (2) is realized by sliding the rear axle chassis assembly (2), the wheelbase adjustment is driven by a servo motor, and the ball screw mechanism is used for transmission.

3. The exhaust gas detection device with the double-shaft variable wheelbase adjusting structure according to claim 1, wherein the front axle chassis assembly (1) comprises two front axle rotary drums (11), two adjustable position lateral limiting catch wheels (12), four front axle lateral limiting rollers (13) and a front axle motor (14); the adjustable position lateral limiting catch wheel (12) is installed in front of the front axle rotary drum (11), the lateral limiting idler wheels (13) are installed on two sides of the front axle rotary drum (11), and the front axle motor (14) is installed on the outer side of the front axle chassis assembly (1).

4. The exhaust gas detection apparatus having a biaxial variable wheelbase adjustment structure according to claim 3, wherein the position of the adjustable position lateral restriction catch wheel (12) is adjusted according to the wheel size, preventing the front-wheel-drive vehicle from laterally deviating on the test stand.

5. The exhaust gas detecting apparatus having a biaxial variable wheelbase adjusting structure according to claim 1, wherein the rear axle chassis assembly (2) includes two rear axle rotating drums (21), two air discharging devices (22), four rear axle lateral limiting rollers (23), and a rear axle motor (24); the rear shaft lateral limiting rollers (23) are arranged on two sides of the rear shaft rotating drum (21), the air exhaust device (22) is arranged on the rear side of the rear shaft rotating drum (21), and the rear shaft motor (24) is arranged on the outer side of the rear shaft chassis assembly (2).

6. The exhaust gas detecting apparatus having a biaxial variable wheelbase adjustment structure as set forth in claim 1, wherein a front wheel is driven on the front axle drum (11) and a rear wheel is driven on the rear axle drum (21) at the time of exhaust gas detection, and actual road driving is simulated in a controlled environment by using a wheel assembly.

7. The exhaust gas detecting apparatus with a biaxial variable wheelbase adjusting structure according to claim 1, wherein the belt transmission device (3) drives the front axle drum (11) and the rear axle drum (21) to move synchronously, a transmission pulley in the belt transmission device (3) drives a belt to move, and a movable pulley in the belt transmission device (3) keeps the belt in a tensioned state through position movement.

8. The exhaust gas detecting apparatus having a two-axis variable wheelbase adjusting structure according to claim 7, wherein a clutch is provided between the belt transmission device (3) and the front axle drum (11) and the rear axle drum (21) to ensure that the front axle drum (11) and the rear axle drum (21) can be operated synchronously and separately.