CN203837854U - Hydraulic dynamometer - Google Patents
Hydraulic dynamometer Download PDFInfo
- Publication number
- CN203837854U CN203837854U CN201420088396.5U CN201420088396U CN203837854U CN 203837854 U CN203837854 U CN 203837854U CN 201420088396 U CN201420088396 U CN 201420088396U CN 203837854 U CN203837854 U CN 203837854U
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- CN
- China
- Prior art keywords
- bearing
- rotor
- hydraulic dynamometer
- shell body
- right shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a hydraulic dynamometer, comprising a central shaft; a rotor is installed in the center of the central shaft; two sides of the rotor are provided with a left housing and a right housing mutually connected; the left housing and the right housing form a cavity therein to enclose the rotator; the outside of the left housing and the right housing is provided with a bearing rack connected to the left housing and the right housing; the bearing rack is in connection with a bearing; the bearing and a bearing cover are connected and fixed. The outer walls of left and right housings are respectively provided with a water inlet and a water outlet. The rotor comprises a shaft sleeve in connection with a main shaft and a shaft ring; a plurality of spokes are uniformly arranged between the shaft ring and the shaft sleeve and are sleeved by rotating rings to connect with fins; the inner walls of left and right housings are terraced and are provided with a plurality of cooling tanks; steps are connected through inclined surfaces. The hydraulic dynamometer has the characteristics of good cooling effect and large test range.
Description
Technical field
The utility model relates to dynamometer technical field, is specifically related to a kind of hydraulic dynamometer.
Background technology
Hydraulic dynamometer is mainly used in the power of test engine, also can be used as the loading equipemtn of gear case, reductor, wheel box, for testing their transmitted power.Its principle is: dynamometer disk is fixed in rotating shaft, rotates in the enclosure together with rotating shaft, has formed the rotor of dynamometer.Water flows into the inner chamber of shell through water intaking valve.In the time that internal combustion engine flywheel rotor driven rotates in shell, due to the rubbing action between rotating disk and water, water is and then rotation together also.Under the effect of centrifugal force, water is thrown toward outer casing inner wall, and meanwhile, shell is subject to after the impact of water, be around axis oscillating.Water slug outer casing inner wall, the effect that is subject to the frictional resistance of inwall has reduced speed, has paid kinetic energy, under the effect of hydraulic pressure, is folded to shell center flow, forms vortex ring hydrosphere, finally makes the temperature of water raise.Due to the friction of hydrosphere and outer casing inner wall, the rotation of shell (swing) speed is slower than the rotation of rotor, thereby hydrosphere will stop the rotation of rotor and produce a moment of resistance.This moment of resistance acts directly on the flywheel of internal combustion engine by shaft coupling, and Here it is is added in the load on internal combustion engine.In other words, water has absorbed the power of internal combustion engine.Owing to can producing in the course of the work heat, make water temperature sharply increase, cannot be cooling fast, become problem now so how to reduce the high temperature producing in hydraulic dynamometer.
Summary of the invention
For the problems referred to above, the purpose of this utility model is to provide one can reduce temperature, the hydraulic dynamometer of coolant water temperature at work.
Realize the technical solution of the utility model as follows:
Hydraulic dynamometer, comprise central shaft, rotor is arranged on the center of central shaft, rotor both sides are provided with interconnective left shell and right shell body, left, right shell body connects the inner cavity that surrounds rotor that forms, left, right shell body outside is provided with the bearing bridge being attached thereto, on bearing bridge, be connected with bearing, bearing and bearing cap are connected and fixed, left, on right shell body outer wall, be respectively equipped with water inlet and water delivering orifice, described rotor comprises and main shaft connecting bushing, and the axle collar, uniformly between the axle collar and axle sleeve be provided with multiple spokes, on described spoke, be arranged with by swivel eye and connect fin, a described left side, right shell body inwall is stepped and with multiple cooling baths, between each step, connect by inclined-plane.
The angle of described inclined-plane and step is 120 °, advantage be can make water and inner walls longer duration of contact, reach desirable cooling effect.
Described spoke is cylindrical, and advantage is to be convenient to fin rotate taking spoke as axle center.
Described fin two ends are provided with the locating ring being fixed on spoke, and advantage is to be convenient to locate fin, prevent its dislocation, affect other fins and normally work.
Described cooling bath is the ring groove that once reduces of diameter or densely covered slotted eye, and advantage is to reduce water to injure with the friction of inner walls, and increases contact area.
Described water inlet and water delivering orifice are provided with switch valve, control the turnover of water and the overflow of anti-sealing.
Adopt above-mentioned scheme, bearing bridge, the fixed sturcture that bearing and bearing cap form is by a left side, right shell body is fixed on central shaft, prevent that in the course of the work it is loosening, the step structure that inner walls is designed to be connected by inclined-plane also offers cooling bath, effectively reduce the impact that housing is subject to water, increase contact area, and can make water temperature cooling rapidly, make its infringement being subject to drop to minimum, the fin that on rotor, spoke is provided with can rotate by swivel eye, by its rotation at work, reduce the test starting point of hydraulic dynamometer, expand the test specification of hydraulic dynamometer.
Brief description of the drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the structural representation of rotor of the present utility model;
Fig. 3 is the structural representation of fin in Fig. 2;
Fig. 4 is the cut-open view of left shell;
Fig. 5 is the front view of left shell;
Fig. 6 is the front view of the another embodiment of cooling bath on left shell;
In figure, axle centered by 1,2 is rotor, 3 is left shell, 4 is right shell body, and 5 is bearing bridge, and 6 is bearing cap, and 7 is bearing, 8 is water inlet, and 9 is water delivering orifice, and 10 is valve, and 11 is spoke, 12 is axle sleeve, and 13 is the axle collar, and 14 is fin, 15 is swivel eye, and 16 is locating ring, and 17 is step, 18 is inclined-plane, and 19 is ring groove, and 20 is slotted eye.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, hydraulic dynamometer, comprise central shaft 1, rotor 2 is arranged on the center of central shaft 1, rotor 2 both sides are provided with interconnective left shell 3 and right shell body 4, left, right shell body connects the inner cavity that surrounds rotor that forms, left, right shell body outside is provided with the bearing bridge 5 being attached thereto, on bearing bridge 5, be connected with bearing 7, bearing 7 is connected and fixed with bearing cap 6, left, on right shell body outer wall, be respectively equipped with water inlet 8 and water delivering orifice 9, described rotor 2 comprises and central shaft 1 connecting bushing 12, and the axle collar 13, uniformly between the axle collar 13 and axle sleeve 12 be provided with multiple spokes 11, on described spoke 11, be arranged with by swivel eye 15 and connect fin 14, a described left side, right shell body inwall is stepped and with multiple cooling baths, between each step 17, connect by inclined-plane 18.
The angle of described inclined-plane and step is 120 °, advantage be can make water and inner walls longer duration of contact, reach desirable cooling effect, spoke 11 is cylindrical, advantage is to be convenient to fin 14 rotate taking spoke 11 as axle center, fin 14 two ends are provided with the locating ring 16 being fixed on spoke 11, advantage is to be convenient to locate fin 14, prevent its dislocation, affecting other fins 14 normally works, cooling bath is the ring groove 19 that once reduces of diameter or densely covered slotted eye 20, described slotted eye is rectangle or circle, here preferentially square, advantage is to reduce the friction injury of water and inner walls, and increase contact area, water inlet 8 and water delivering orifice 9 are provided with switch valve 10, control the turnover of water and the overflow of anti-sealing.
By test, this hydraulic dynamometer can run well under condition once: temperature 0-50 °, humidity≤85%, sea level elevation≤3000m, power supply is alternating voltage 220 ± 10%, frequency 50Hz ± 1%, and the temperature of normal water is≤32 DEG C, and dynamometer should be fixed in firm foundations, infield around should be without the air-flow, vibration and the electromagnetic field that affects performance, and non-corrosiveness gas and electro-conductive dust existence.The permanent torque adjustment error of this hydraulic dynamometer is between dynamometer maximum range ± 1% in addition; Permanent rotational speed regulation error is between ± 5r/min; Rotating speed square regulating error is between ± 5r/min; Rotating speed ratio regulating error is between ± 5r/min; In the time of tachometric survey, when rotating speed is not more than 1000r/min, error is between ± 1r/min; When rotating speed is greater than 1000r/min, error dynamometer rotating speed maximum range ± 0.1% ± 1 word; When dynamometer smooth operation, temperature at discharging condensate should be higher than 70 DEG C;
Claims (6)
1. hydraulic dynamometer, comprise central shaft, rotor is arranged on the center of central shaft, rotor both sides are provided with interconnective left shell and right shell body, left, right shell body connects the inner cavity that surrounds rotor that forms, left, right shell body outside is provided with the bearing bridge being attached thereto, on bearing bridge, be connected with bearing, bearing and bearing cap are connected and fixed, left, on right shell body outer wall, be respectively equipped with water inlet and water delivering orifice, described rotor comprises and main shaft connecting bushing, and the axle collar, uniformly between the axle collar and axle sleeve be provided with multiple spokes, it is characterized in that: on described spoke, be arranged with by swivel eye and connect fin, a described left side, right shell body inwall is stepped and with cooling bath, between each step, connect by inclined-plane.
2. hydraulic dynamometer according to claim 1, is characterized in that: the angle of described inclined-plane and step is 120 °.
3. hydraulic dynamometer according to claim 1, is characterized in that: described spoke is cylindrical.
4. hydraulic dynamometer according to claim 1, is characterized in that: described fin two ends are provided with the locating ring being fixed on spoke.
5. hydraulic dynamometer according to claim 1, is characterized in that: described cooling bath is the ring groove that diminishes successively of diameter or densely covered slotted eye.
6. hydraulic dynamometer according to claim 1, is characterized in that: described water inlet and water delivering orifice are provided with switch valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420088396.5U CN203837854U (en) | 2014-02-28 | 2014-02-28 | Hydraulic dynamometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420088396.5U CN203837854U (en) | 2014-02-28 | 2014-02-28 | Hydraulic dynamometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203837854U true CN203837854U (en) | 2014-09-17 |
Family
ID=51515679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420088396.5U Expired - Fee Related CN203837854U (en) | 2014-02-28 | 2014-02-28 | Hydraulic dynamometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203837854U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806623A (en) * | 2016-05-12 | 2016-07-27 | 中国航空动力机械研究所 | Zero torque testing device and testing method for turboshaft engine |
| CN106374353A (en) * | 2016-10-13 | 2017-02-01 | 国网山东省电力公司章丘市供电公司 | Low voltage distribution network reactive compensating tank with high load changing rate |
| CN107402091A (en) * | 2017-09-13 | 2017-11-28 | 中国船舶重工集团公司第七0三研究所 | A kind of Novel disc-type hydraulic dynamometer |
-
2014
- 2014-02-28 CN CN201420088396.5U patent/CN203837854U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806623A (en) * | 2016-05-12 | 2016-07-27 | 中国航空动力机械研究所 | Zero torque testing device and testing method for turboshaft engine |
| CN106374353A (en) * | 2016-10-13 | 2017-02-01 | 国网山东省电力公司章丘市供电公司 | Low voltage distribution network reactive compensating tank with high load changing rate |
| CN107402091A (en) * | 2017-09-13 | 2017-11-28 | 中国船舶重工集团公司第七0三研究所 | A kind of Novel disc-type hydraulic dynamometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20160228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |