CN203475275U - Asphalt metering device for asphalt mixture stirring device - Google Patents
Asphalt metering device for asphalt mixture stirring device Download PDFInfo
- Publication number
- CN203475275U CN203475275U CN201320451825.6U CN201320451825U CN203475275U CN 203475275 U CN203475275 U CN 203475275U CN 201320451825 U CN201320451825 U CN 201320451825U CN 203475275 U CN203475275 U CN 203475275U
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- China
- Prior art keywords
- asphalt
- metering device
- pitch
- suction pipe
- housing
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- Expired - Lifetime
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Abstract
The utility model discloses an asphalt metering device for an asphalt mixture stirring device, comprises an asphalt metering device body arranged in a suction tube (8) in an asphalt liquid, and a check valve (7) arranged on the suction tube (8) and used for preventing the asphalt liquid from refluxing; when the asphalt metering device body is closed, the asphalt liquid cannot reflux in the suction tube (8) so as to prevent air from entering the suction tube (8), the influence of the asphalt metering device body to a metering signal caused by exhaust is avoided, the metering precision of the asphalt liquid is improved, and the output time of the asphalt liquid is shortened.
Description
Technical field
The utility model relates to a kind of pitch metering device, especially a kind of pitch metering device for asphalt mixing apparatus.
Background technology
When bituminous mixture stirs, the amount that need to add by a certain percentage pitch, thereby guarantee the quality of bituminous mixture, therefore the pitch metering device for asphalt mixing apparatus is a kind of important road building equipment, at the existing pitch metering device for asphalt mixing apparatus, pitch metering device be the about bitumenpump start and stop per minute of intermittently used once, the pitch in pitch suction pipe when bitumenpump shuts down of the asphalt weigher in the past scale body that flows backwards back, when starting again, bitumenpump have a large amount of air to cause bitumenpump vibration in pitch suction pipe, thereby affect the accuracy of pitch metering and the delivery efficiency of pitch.
Summary of the invention
In order to overcome above-mentioned technical disadvantages, the purpose of this utility model is to provide a kind of pitch metering device for asphalt mixing apparatus, has therefore improved the measuring accuracy of asphaltic liquid, has shortened the output time of asphaltic liquid.
For achieving the above object, the technical scheme that the utility model is taked is: include have be arranged on suction pipe in asphaltic liquid pitch metering device body, be arranged on suction pipe and the one way valve for preventing that asphaltic liquid from refluxing.
In the time quantitative pitch metering need to being exported, start pitch metering device body, pitch is input in asphalt mixing apparatus by one way valve and pitch metering device body, pitch metering device body detects pitch weight change, close pitch metering device body and realize the quantitative output of pitch, owing to having designed one way valve, when closing pitch metering device body, asphaltic liquid can not reflux at suction pipe, thereby prevent that air from entering into suction pipe, avoided vibration that pitch metering device body causes due to the exhaust impact on metering signal, therefore improved the measuring accuracy of asphaltic liquid, shortened the output time of asphaltic liquid.
The utility model has designed, one way valve is set to include housing, spring, ball sealer and valve seat, in housing, be provided with spring and ball sealer, valve seat is arranged on the lower surface of housing and is set to connect with ball sealer contact, ball sealer is set to connect with the port contact of the lower surface of housing, between ball sealer and the upper surface of housing, is provided with spring.
The utility model has designed, pitch metering device body is set to include container, upper bracket, lower carriage, sensor, bitumenpump and spray line, between upper bracket and lower carriage, be provided with sensor, container is set to connect with upper bracket, suction pipe is arranged in container and is set to and is communicated with the input port of bitumenpump, and spray line is set to be communicated with the output port of bitumenpump.
Useful technique effect of the present utility model is: at the pitch suction pipe group end of asphalt weigher, install one way valve additional and prevent pitch in the pitch suction pipe scale body that flows backwards back; One way valve is comprised of valve body, adpting flange, spring, sealed steel ball, valve seat etc.; When bitumenpump does not turn round not to the suction force of pitch at this moment the pitch in pitch suction pipe will under the effect of gravity, refund scale body, the steel ball after installing one way valve additional in valve cuts out rapidly the pitch that blocks backflow with valve seat gap under the thrust of the gravity spring of the thrust of pitch itself.
In the technical program, on suction pipe and for preventing that the one way valve that asphaltic liquid refluxes from being important technical characterictic, the technical field at the pitch metering device for asphalt mixing apparatus, has novelty, creativeness and practicality.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model:
Fig. 2 is the structural representation of one way valve 7.
The specific embodiment
Fig. 1 is an embodiment of the present utility model, illustrate by reference to the accompanying drawings the present embodiment, include container 1, upper bracket 2, lower carriage 3, sensor 4, suction pipe 8, bitumenpump 5, spray line 6 and one way valve 7, between upper bracket 2 and lower carriage 3, be provided with sensor 4, container 1 is set to connect with upper bracket 2, suction pipe 8 is arranged in container 1 and is set to and is communicated with the input port of bitumenpump 5, and spray line 6 is communicated with the output port of bitumenpump 5, is provided with one way valve 7 on suction pipe 8.
In the present embodiment, one way valve 7 is set to include housing 71, spring 72, ball sealer 73 and valve seat 74, in housing 71, be provided with spring 72 and ball sealer 73, valve seat 74 is arranged on the lower surface of housing 71 and is set to connect with ball sealer 73 contacts, ball sealer 73 is set to connect with the port contact of the lower surface of housing 71, between ball sealer 73 and the upper surface of housing 71, is provided with spring 72.
Pitch is poured in container 1, in the time quantitative pitch metering need to being exported, start bitumenpump 5, pitch is input in asphalt mixing apparatus by one way valve 7, suction pipe 8 and spray line 6, the pitch weight change of sensor 4 inspection instruments 1, closes the quantitative output that bitumenpump 5 is realized pitch.
The utlity model has lower feature:
1, owing to having designed one way valve 7, when closing pitch metering device body, asphaltic liquid can not reflux at suction pipe 8, thereby prevent that air from entering into suction pipe 8, avoided vibration that pitch metering device body causes due to the exhaust impact on metering signal, therefore improve the measuring accuracy of asphaltic liquid, shortened the output time of asphaltic liquid.
2, owing to having designed one way valve 7, due under resilient force, good sealing effect.
3, owing to having designed container 1, upper bracket 2, lower carriage 3, sensor 4, suction pipe 8, bitumenpump 5 and spray line 6, high to asphaltic liquid measuring accuracy.
In the pitch metering device technical field for asphalt mixing apparatus; Every include have be arranged on suction pipe 8 in asphaltic liquid pitch metering device body, be arranged on suction pipe 8 and for the technology contents that prevents the one way valve 7 that asphaltic liquid refluxes all in protection domain of the present utility model.
Claims (3)
1. the pitch metering device for asphalt mixing apparatus; It is characterized in that: include have be arranged on suction pipe in asphaltic liquid (8) pitch metering device body, be arranged on the upper and one way valve (7) for preventing that asphaltic liquid from refluxing of suction pipe (8).
2. the pitch metering device for asphalt mixing apparatus according to claim 1; It is characterized in that: one way valve (7) is set to include housing (71), spring (72), ball sealer (73) and valve seat (74), in housing (71), be provided with spring (72) and ball sealer (73), valve seat (74) is arranged on the lower surface of housing (71) and is set to connect with ball sealer (73) contact, ball sealer (73) is set to connect with the port contact of the lower surface of housing (71), between ball sealer (73) and the upper surface of housing (71), is provided with spring (72).
3. the pitch metering device for asphalt mixing apparatus according to claim 1 and 2; It is characterized in that: pitch metering device body is set to include container (1), upper bracket (2), lower carriage (3), sensor (4), bitumenpump (5) and spray line (6), between upper bracket (2) and lower carriage (3), be provided with sensor (4), container (1) is set to connect with upper bracket (2), suction pipe (8) is arranged in container (1) and is set to and is communicated with the input port of bitumenpump (5), and spray line (6) is set to be communicated with the output port of bitumenpump (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320451825.6U CN203475275U (en) | 2013-07-29 | 2013-07-29 | Asphalt metering device for asphalt mixture stirring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320451825.6U CN203475275U (en) | 2013-07-29 | 2013-07-29 | Asphalt metering device for asphalt mixture stirring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203475275U true CN203475275U (en) | 2014-03-12 |
Family
ID=50223631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320451825.6U Expired - Lifetime CN203475275U (en) | 2013-07-29 | 2013-07-29 | Asphalt metering device for asphalt mixture stirring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203475275U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109811621A (en) * | 2019-03-19 | 2019-05-28 | 无锡锡通工程机械有限公司 | Pitch metering and sprinkling device for discharging |
-
2013
- 2013-07-29 CN CN201320451825.6U patent/CN203475275U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109811621A (en) * | 2019-03-19 | 2019-05-28 | 无锡锡通工程机械有限公司 | Pitch metering and sprinkling device for discharging |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140312 |