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A novel speed transmission endurance test shift mechanism
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A technology of durability test and shifting mechanism, applied in the field of transmission test, can solve the problem that the transmission cannot be automatically shifted, and achieve the effects of convenient and quick shifting, good rigidity and high shifting precision.
Inactive Publication Date: 2017-05-31
HARBIN DONGAN AUTO ENGINE
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[0003] The purpose of the present invention is to propose a novel transmission durability test shifting mechanism to solve the problem that the transmission cannot be automatically shifted during the test during the durability test and performance test
Method used
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specific Embodiment approach 1
[0017] Specific implementation manner one: such as figure 1 Shown: a new type of gear shift mechanism for durability test of transmission, which includes test base plate 8, two linear slide rails 3, six limit screw seats 4, six sliding bearing seats 5, six fine-tuning handles 6, eight optical fibers Bracket 7, two soft tie bars 9, six fine-tuning screws 11, eight optical fiber sensors 13 and four cylinders; the two linear slides 3 are linear slide 1 3-1 and linear slide 2 3 -2, the six limit threaded seats 4 are limit threaded seat 4-1, limit threaded seat two 4-2, limit threaded seat three 4-3, limit threaded seat four 4-4 , Limit thread seat 5 4-5 and limit thread seat 6 4-6, the six sliding bearing seats 5 are sliding bearing seat 5-1, sliding bearing seat two 5-2, sliding bearing seat three 5-3, sliding bearing seat four 5-4, sliding bearing seat five 5-5 and sliding bearing seat six 5-6, the six fine-tuning handles 6 are fine-tuning handle 1 6-1, fine-tuning handle 2 6 2...
specific Embodiment approach 2
[0023] Specific implementation manner two: such as figure 1 As shown, a new type of transmission endurance test shift mechanism described in the first embodiment, the new type of transmission endurance test shift mechanism further includes two soft brace brackets 10; the two soft braces The brackets 10 are respectively a soft brace bracket 10-1 and a soft brace bracket 10-2. The soft brace 1 9-1 is supported by the soft brace bracket 10-1, and the soft brace 2 9-2 is supported by the soft brace bracket two 10-2, the soft brace bracket one 10-1 and the soft brace bracket two 10-2 are respectively (by screws) detachably fastened and connected to the upper surface of the test base plate 8 .
specific Embodiment approach 3
[0024] Specific implementation manner three: such as figure 1 As shown, a new type of transmission endurance test shift mechanism described in the first or second embodiment, the said new type of transmission endurance test shift mechanism further includes two support frames, the two support frames are respectively The first support frame and the second support frame; the shift-in cylinder 1 and the back-shift cylinder 2 are arranged on the first support frame, the two gear selection cylinders 12 are arranged on the second support frame, and both support frames are (through Screw) and the upper surface of the test base plate 8 can be detachably fastened and connected.
[0025] Working principle: According to the current program of the transmission endurance test, the automatic gear shifting mechanism is issued a shift position command, four cylinders are controlled, and two soft ties 9 (also called shift cables) are controlled, two soft pulls Rib 9 is connected to the gear shift...
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Abstract
A novel speed transmission endurance test shift mechanism belongs to the technical field of speed transmission tests. A piston rod of a forward gear cylinder is fixedly connected with a first soft pull bar through a first linear slide rail, and the first soft pull bar is fixedly connected with a transmission shift lever; the cylinder body of the forward gear cylinder is fixed on a first space-limiting screw seat; the first space-limiting screw seat is in threaded connection with a first fine tuning screw; the first fine tuning screw is slidably connected with a first sliding bearing seat; first optical fiber sensors are respectively fixed on two optical fiber holders; the structure of a first gear selecting cylinder is the same as that of the forward gear cylinder; a piston rod of a return gear cylinder is fixedly connected to a third space-limiting threaded seat; a third fine-tuning screw goes through a third sliding bearing seat to be in threaded connection with the third space-limiting threaded seat; the rear end of a cylinder body of the return gear cylinder is fixed on a fourth sliding bearing seat; the front end of a forth fine-tuning screw is in sliding connection with the fourth sliding bearing seat; the forth fine-tuning screw is in threaded connection with a fourth space-limiting threaded seat; and two third optical supports are respectively fixed with third optical fiber sensors. The structure of a second gear selecting cylinder is the same with that of the return cylinder. The invention is used for speed transmission endurance tests.
Description
Technical field [0001] The invention relates to a gear shift mechanism for a transmission durability test, belonging to the technical field of transmission tests. Background technique [0002] In the development process of the transmission, it is necessary to carry out fatigue durability assessment and performance test on the transmission assembly. On the existing transmission durability test bench, the operator needs to go to the test site to manually shift gears, which has a long cycle and is easy to misoperation. The purpose of automatic and accurate gear shifting cannot be achieved. Summary of the invention [0003] The purpose of the present invention is to propose a new type of gear shifting mechanism for endurance test of transmission to solve the problem that the gear can not be automatically shifted during the endurance test and performance test of the transmission. [0004] By designing a new automatic shifting mechanism, the test bench can not only realize the durability...
Claims
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Application Information
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