CN202578917U

CN202578917U - Throttle valve body

Info

Publication number: CN202578917U
Application number: CN 201120469586
Authority: CN
Inventors: 杨大明; 张建和
Original assignee: CHONGQING YUHUI MACHINERY CO LTD
Current assignee: CHONGQING YUHUI MACHINERY CO LTD
Priority date: 2011-11-11
Filing date: 2011-11-11
Publication date: 2012-12-05
Anticipated expiration: 2021-11-11

Abstract

The utility model provides a throttle valve body which comprises a bearing and a rotating shaft arranged on the bearing, wherein the rotating shaft is protruded from a rotating frame component; a stop surface is formed at one end of the rotating shaft, which is protruded from the rotating frame component; and the inner side wall of the stop surface is tightly attached to the outer side wall of the rotating frame component. Thus, a space between the rotating shaft and the rotating frame component is eliminated; the use of a spring gasket and the use of a nut are reduced; the number of parts is reduced; and the cost is reduced.

Description

A kind of throttle body

Technical field

The utility model relates to field of mechanical technique, particularly a kind of throttle body.

Background technique

Because running shaft and and the hole of swing frame assembly between have the gap; Drift appears in the idling master who under the effect of vibration and power, causes in the working procedure logical position easily; Thereby can cause the main passage gap smaller, main through hole initial flow descends, and causes idling fault and closure hair fastener problem easily.

The model utility content

The utility model provides a kind of simple in structure, throttle body that cost is low.

To achieve these goals, the utility model provides following technological scheme:

A kind of throttle body; Comprise bearing and be installed in the running shaft on the said bearing, wherein, said running shaft protrudes from said swing frame assembly; And the end that said running shaft protrudes from said swing frame assembly has a grade face, and the madial wall of this grade face is close on the outer side wall of said swing frame assembly.

Through implementing above technological scheme; Has following technique effect: the throttle body that the utility model provides; Said running shaft is close to said swing frame assembly, thereby has eliminated the interval between running shaft and the said swing frame assembly, has reduced the use of spring washer and nut; Reduce component, reduced cost.

Description of drawings

The plan view of the throttle body that Fig. 1 provides for the utility model embodiment;

Fig. 2 is the A-A sectional view of Fig. 1;

The stereogram of the throttle body that Fig. 3 provides for the utility model embodiment;

The plan view (part) of the throttle body that Fig. 4 provides for the utility model embodiment;

The stereogram (part) of the throttle body that Fig. 5 provides for the utility model embodiment;

The stereogram of the double-lip sealing ring that Fig. 6 provides for the utility model embodiment.

Embodiment

In order better to understand the technological scheme of the utility model, describe the embodiment that the utility model provides in detail below in conjunction with accompanying drawing.

The utility model embodiment provides a kind of throttle body; Like Fig. 1, Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5; Comprise tb 3; Be arranged on drag-line support 7, pipe joint 6, stepper motor 2, position transducer 1, running shaft 4, video disc 5, swing frame assembly 11 and torsion spring 9 on the said tb 3, said running shaft 4 is installed on the said swing frame assembly 11, is equiped with

axle sleeve

8,10 on the said running shaft 4.In the present embodiment, said running shaft 4 protrudes from said swing frame assembly 11, and said running shaft 4 is close to said swing frame assembly 11.Said position transducer 1 is provided with D RunddichtringO 14.The inner side surface of a said swing frame assembly 11 is provided with double-lip sealing ring 13.Part according to different structure assembles running shaft 4 and swing frame assembly 11 in advance.With the running shaft 4 of packing in the swing frame assembly 11; The one end protrusion of its running shaft 4 is at the outer surface of swing frame assembly 11; The utilization riveter revolves the riveting distortion with the part of running shaft 4 protrusions; An end that makes this running shaft 4 protrude from said swing frame assembly 11 has grade face 41, and this grade face 41 keeps off this running shaft 4 on said swing frame assembly 11, and the madial wall of this grade face is close on the outer side wall of said swing frame assembly 11.Again the gap between the hole of running shaft 4 and swing frame assembly 11 is filled up, thereby eliminated at interval, revolve the riveting distortion because of the part of running shaft 4 protrusions again and have grade face 41, running shaft 4 closely is connected with swing frame assembly 11.There is the problem in gap thereby reach between the hole that solves running shaft 4 and swing frame assembly 11, is connected inaccessiable effect with nut, reach the minimizing component, reduced cost thereby play former spring washer.

More concrete, as shown in Figure 6, said double-lip sealing ring 13 comprises a rubber ring, and the inner peripheral surface of said rubber ring is provided with a circle groove 133, and the rib circle 131 of the convexity of this groove 133 and groove 133 both sides forms the seal ring 13 of lips.

In the present embodiment, the external diameter of seal ring 13 and tb 3 interference fit all are interference fit between the lips of the internal diameter of sealing circle and the running shaft 4, thereby better than the sealing effect of single procheilon structure and " O " RunddichtringO.

More than a kind of throttle body that the utility model embodiment is provided carried out detailed introduction; For one of ordinary skill in the art; Thought according to the utility model embodiment; The part that on embodiment and application area, all can change, in sum, this description should not be construed as the restriction to the utility model.

Claims

1. throttle body; Comprise bearing and be installed in the running shaft on the said bearing, it is characterized in that said running shaft protrudes from said swing frame assembly; And the end that said running shaft protrudes from said swing frame assembly has a grade face, and the madial wall of this grade face is close on the outer side wall of said swing frame assembly.