CN213580082U - Heavy-duty car gearbox detection device - Google Patents
Heavy-duty car gearbox detection device Download PDFInfo
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- CN213580082U CN213580082U CN202021349771.9U CN202021349771U CN213580082U CN 213580082 U CN213580082 U CN 213580082U CN 202021349771 U CN202021349771 U CN 202021349771U CN 213580082 U CN213580082 U CN 213580082U
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- gearbox
- heavy
- eddy current
- speed
- current dynamometer
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Abstract
The utility model discloses a heavy-duty car gearbox detection device relates to mechanical industry technical field. This heavy-duty car gearbox detection device, including power supply, 1# torquemeter, the gearbox that is surveyed, 2# torquemeter, acceleration rate case, electric eddy current dynamometer, electronic hydraulic pump, the gearbox control handle that shifts, 1# torquemeter is connected to the power supply, 1# torquemeter is connected and is surveyed the gearbox, 2# torquemeter is connected to the gearbox that is surveyed, 2# torquemeter is connected the acceleration rate case, the acceleration rate case is connected electric eddy current dynamometer. According to the heavy-duty automobile gearbox detection device, the speed increasing box is additionally arranged between the gearbox and the eddy current dynamometer, the rotating speed is increased to 1000r/min when the gearbox rotates at a low speed so that the eddy current dynamometer can absorb power, and the application range of the eddy current dynamometer to the rotating speed of the gearbox is enlarged.
Description
Technical Field
The utility model relates to the technical field of the mechanical industry, specifically be a heavy-duty car gearbox detection device.
Background
At present, the prior art for testing the automobile gearbox in China is less, the input rotating speed of the eddy current dynamometer in the prior art is required to be at least 1000r/min when the eddy current dynamometer works normally, the output rotating speed of the tested gearbox is only 300 revolutions particularly when the tested gearbox is tested in a low-speed gear and a reverse gear, and the eddy current dynamometer cannot absorb power at the rotating speed, so that the test cannot be performed normally. To this end, there are two solutions, solution one: customizing a larger eddy current dynamometer to meet the dynamometer requirement under low-speed and large torque, and adopting the scheme II: a speed increasing box is customized, and the low rotating speed is reduced to the high rotating speed after the 2# torque meter so as to meet the input requirement of the dynamometer.
The first scheme is that the manufactured eddy current dynamometer is large in size and cost, and how the effect is not determined in practical use.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a to prior art's is not enough, the utility model provides a heavy-duty car gearbox detection device has solved current eddy current dynamometer machine and can't carry out the absorptive problem of power when motor transmission low-speed.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a heavy-duty car gearbox detection device comprises a power source, a 1# torque meter, a tested gearbox, a 2# torque meter, a speed increasing box, an eddy current dynamometer, an electric hydraulic pump and a gearbox gear shifting control handle, wherein the power source is connected with the 1# torque meter, the 1# torque meter is connected with the tested gearbox, the tested gearbox is connected with the 2# torque meter, the 2# torque meter is connected with the speed increasing box, and the speed increasing box is connected with the eddy current dynamometer;
the electric hydraulic pump is connected with a tested gearbox, the gearbox gear-shifting control handle is connected with the tested gearbox, and the gearbox gear-shifting control handle is connected with the eddy current dynamometer.
Preferably, the power source is a high-power speed-adjustable motor.
Preferably, the power source is a 3307 vehicle engine.
Preferably, the output rotating speed of the speed increasing box is greater than 1000r/min, and the pressure oil of the electric hydraulic pump is led into the speed increasing box and works synchronously with the speed increasing box.
Preferably, the rotating speed of the power source is adjusted by an electric control accelerator.
Preferably, the tested gearbox is driven by a hydraulic torque converter or a locking clutch when working, and the gearbox gear shifting control handle is driven by a self-contained hydraulic pump and controlled by a longitudinal gear electromagnetic valve of the gearbox gear shifting control handle.
(III) advantageous effects
The utility model provides a heavy-duty car gearbox detection device. The method has the following beneficial effects:
according to the heavy-duty automobile gearbox detection device, the speed increasing box is additionally arranged between the gearbox and the eddy current dynamometer, the rotating speed is increased to 1000r/min when the gearbox rotates at a low speed so that the eddy current dynamometer can absorb power, and the application range of the eddy current dynamometer to the rotating speed of the gearbox is enlarged.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
Referring to fig. 1, the present invention provides a technical solution: a heavy-duty car gearbox detection device comprises a power source, a 1# torque meter, a tested gearbox, a 2# torque meter, a speed increasing box, an eddy current dynamometer, an electric hydraulic pump and a gearbox gear shifting control handle, wherein the power source is connected with the 1# torque meter, the 1# torque meter is connected with the tested gearbox, the tested gearbox is connected with the 2# torque meter, the 2# torque meter is connected with the speed increasing box, the speed increasing box is connected with the eddy current dynamometer, the electric hydraulic pump is connected with the tested gearbox, the gearbox gear shifting control handle is connected with the eddy current dynamometer, the power source is a high-power adjustable-speed motor or a 3307 vehicle engine, the output rotating speed of the speed increasing box is more than 1000r/min, pressure oil of the electric hydraulic pump is led into the speed increasing box and synchronously works with the speed increasing box, the rotating speed of the power source is adjusted by an electric control accelerator, the tested gearbox is driven by a hydraulic torque converter or a locking clutch when working, and the gearbox gear-shifting control handle is driven by a self-contained hydraulic pump and is controlled by a longitudinal gear electromagnetic valve of the gearbox gear-shifting control handle.
The speed increasing box is a core part of a heavy-duty automobile gearbox detection device. When the eddy current dynamometer normally works, certain requirements are required on input rotating speed, the minimum rotating speed is 1000r/min or more, the tested gearbox comprises seven gears including a neutral gear and a reverse gear, the output rotating speed is only 1000r/min when the tested gearbox is tested in a low-speed gear and a reverse gear, and the eddy current dynamometer cannot absorb power at the rotating speed, so that the test cannot be normally carried out. So far, the solution firstly customizes a larger eddy current dynamometer to meet the dynamometer requirement under the low-speed large torque, and secondly customizes a speed increasing box to restore the low rotating speed to the high rotating speed after a # torque meter to meet the input power requirement of the eddy current dynamometer.
A gear box for a vehicle is used for carrying out reverse dragging on a gear box detection device of a heavy-duty car to replace a speed increasing box. The hydraulic torque converter is locked by the hydraulic torque converter or the locking clutch because the torque converter does not need to work when the eddy current dynamometer is input, and the hydraulic torque converter is directly driven to eliminate the hydraulic pump of the speed increasing box, and an electric hydraulic pump is arranged to lead pressure oil into the speed increasing box and synchronously work with the speed increasing box. The problem of speed-up box power transmission and the supply of hydraulic oil is solved.
On the control part, an electrically controlled throttle is used to adjust the rotational speed of the power source engine. In the aspect of operation of a gear shifting control handle, gear control of the speed increasing box is synchronous with gear control of the tested gearbox, and the matching problem of rotating speed is perfectly solved. Therefore, the whole gearbox testing process can be coordinated to run, and the testing work is completed.
In conclusion, the heavy-duty automobile gearbox detection device increases the rotating speed to 1000r/min to enable the eddy current dynamometer to absorb power when the gearbox rotates at a low speed in a mode of additionally arranging the speed increasing box between the gearbox and the eddy current dynamometer, and the application range of the eddy current dynamometer to the rotating speed of the gearbox is enlarged.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a heavy-duty car gearbox detection device, includes power supply, 1# torquemeter, is surveyed gearbox, 2# torquemeter, speed-up box, electric eddy current dynamometer, electric hydraulic pump, gearbox control handle that shifts, its characterized in that: the power source is connected with a 1# torque meter, the 1# torque meter is connected with a tested gearbox, the tested gearbox is connected with a 2# torque meter, the 2# torque meter is connected with a speed increasing box, and the speed increasing box is connected with an eddy current dynamometer;
the electric hydraulic pump is connected with a tested gearbox, the gearbox gear-shifting control handle is connected with the tested gearbox, and the gearbox gear-shifting control handle is connected with the eddy current dynamometer.
2. The heavy-duty car transmission case detecting device of claim 1, wherein: the power source is a high-power speed-adjustable motor.
3. The heavy-duty car transmission case detecting device of claim 1, wherein: the power source is 3307 vehicle engine.
4. The heavy-duty car transmission case detecting device of claim 1, wherein: the output rotating speed of the speed increasing box is more than 1000r/min, and the pressure oil of the electric hydraulic pump is led into the speed increasing box and works synchronously with the speed increasing box.
5. The heavy-duty car transmission case detecting device of claim 1, wherein: the rotating speed of the power source is adjusted by an electric control accelerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021349771.9U CN213580082U (en) | 2020-07-10 | 2020-07-10 | Heavy-duty car gearbox detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021349771.9U CN213580082U (en) | 2020-07-10 | 2020-07-10 | Heavy-duty car gearbox detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213580082U true CN213580082U (en) | 2021-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021349771.9U Active CN213580082U (en) | 2020-07-10 | 2020-07-10 | Heavy-duty car gearbox detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213580082U (en) |
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2020
- 2020-07-10 CN CN202021349771.9U patent/CN213580082U/en active Active
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