CN201331428Y

CN201331428Y - Test bed for measuring transmission efficiency of gears

Info

Publication number: CN201331428Y
Application number: CNU2008202408994U
Authority: CN
Inventors: 孙秋艳; 玄兆燕
Original assignee: Hebei University of Science and Technology
Current assignee: Hebei University of Science and Technology; Hebei Polytechnic University
Priority date: 2008-12-30
Filing date: 2008-12-30
Publication date: 2009-10-21
Anticipated expiration: 2018-12-30

Abstract

The utility model relates to a test bed for measuring transmission efficiency of gears, which comprises a gear set, a transmission shaft and a motor. The motor is provided with a torque measurement device; the transmission shaft is provided with a loader; a permanent seat in the torque measurement device of the motor is arranged on one side of the motor; a gear ring on the periphery of the motor and is engaged with a rack which is fixed on a pin roll; the pin roll is contacted with a pressure spring inside the permanent seat; a displacement sensor is arranged outside the permanent seat; a shaft sleeve in the loader is sleeved outside the transmission shaft; a spiral groove sleeve and a roller are fixed outside the transmission shaft by a connecting piece; a loading sleeve and a nut sleeve are sequentially sleeved outside a shaft sleeve at the other end of the roller; and a control box is arranged on one side of the nut sleeve and fixedly connected with a screw screwed with the nut sleeve and a hand wheel. The test bed has simple structure; power provided by the motor is mainly used for overcoming the friction force, and the energy consumption is less; and during the test, the test bed can control the loading force at any time, is convenient to operate, and is suitable for gears with large batch, long time and heavy load.

Description

Prototype gear transmission efficiency testing table

Technical field

The utility model relates to a kind of testing table, specifically a kind of prototype gear transmission efficiency testing table.

Background technology

Gear-driven efficiency is the important indicator of evaluation gear drive quality.The existing testing table that is used for the prototype gear transmission efficiency is generally open, when loading at the trial, need other oil (gas) filling device, make the whole test platform seem more complicated and heaviness, and the power of motor output will be used to overcome various moments that this labyrinth brings and the frictional resistance between the driving member, energy loss is bigger, and the degree of accuracy of prototype gear transmission efficiency is lower.

The utility model content

The utility model is at the deficiencies in the prior art, and it is little to provide a kind of motor power to consume, the prototype gear transmission efficiency testing table that frictional resistance is few in the measuring process.

Realize the foregoing invention purpose by the following technical solutions: a kind of prototype gear transmission efficiency testing table, comprise gear set, the transmission shaft that matches with gear set and the motor of power is provided for gear set, on the described motor torque measuring device is housed, on the transmission shaft of described gear set loader is housed, wherein:

Holder in a, the described motor torque measurement mechanism places motor one side, the gear ring of motor periphery this tooth bar that is meshed with tooth bar is fixed on the bearing pin, bearing pin touches mutually with the stage clip that places holder inside, and the displacement transducer that is connected with stage clip is equipped with in the holder outside;

Axle sleeve in b, the described loader is sleeved on the outside of transmission shaft, its outside is fixed with spiral groove sleeve and roller with web member, the axle sleeve of the roller other end is set with successively outward and loads cover and nut sleeve, and a side of this nut sleeve is equipped with control box, and the screw rod and the handwheel that spin mutually with this nut sleeve are affixed.

Compared with prior art, the utility model is simple in structure, and the power that motor provided is mainly used in and overcomes frictional resistance, energy consumption is little, control loaded dynamics at any time in process of the test, easy to operate, suitable gear test in enormous quantities, long-time, heavy load is used.

Description of drawings

Fig. 1 is an one-piece construction synoptic diagram of the present utility model.

Fig. 2 is the loader structural scheme of mechanism.

Fig. 3 is the torque measuring device structural representation.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

Referring to accompanying drawing 1-3, in the present embodiment, this testing table that is used for the prototype gear transmission efficiency, it comprises two groups of gear set ab and cd, wherein connects transmission with stiff shaft 1 between the ab, connects transmission with elastic shaft 2 between the cd.Be connected with motor 6 with the stiff shaft 1 that gear set ab matches, on the motor 6 torque measuring device be housed, the axle head of the elastic shaft 2 of gear set cd is set with loader 3, wherein:

Holder 18 in the described torque measuring device is fixed on a side of motor 6, the gear ring 15 of motor 6 peripheries is meshed with one section tooth bar 16, these tooth bar 16 other ends are welded on an end of bearing pin 17, the other end of bearing pin 17 puts in the holder 18, and touch mutually with the stage clip 19 that holder 18 inside are housed, holder 18 outside sides are equipped with the displacement transducer 5 that is connected with stage clip 19.

Axle sleeve 14 in the described loader 3 is sleeved on the outside of elastic shaft 2, its other end is socketed with gear b, the outside of the axle sleeve 14 of close gear b one end is fixedly connected with spiral groove sleeve 7 and roller 8 with fixed pin, one end of spiral groove sleeve 7 is fixed on the gear b, positioning key 9 also is housed on the axle sleeve 14, the axle sleeve of roller 8 other ends is set with successively outward and loads cover 10 and nut sleeve 11, and this nut sleeve 11 is inner with bearing and elastic shaft 2 sockets.One side of nut sleeve 11 is equipped with control box 12, is used for showing torque, and an end of this nut sleeve 1 is connected with a screw rod 13 by engage thread, and the other end of this screw rod 13 and handwheel 4 are affixed.

The utility model can constitute a type closed power flow testing table, its principle of work is: make motor 6 spread out of power and drive stiff shaft 1 rotation, in outputting power, by displacement transducer 5 data presented, can calculate the output torque of motor 6, when loader 3 does not load, when being in the release position, the torque that control box 12 similarly is is 0, when needs load, rotate handwheel 4, make screw rod 13 precession left, move to left thereby promote nut sleeve 11, under the reasoning effect, loading cover 10 moves to left too, in loading cover 10 moved to left process, roller 8 was along the groove slippage in the spiral groove sleeve 7 that is fixed on the gear b, and positioning key 9 is slippage left also, after shifting onto to a certain degree, elastic shaft 2 produces relative torsional deflection, thereby gear has been produced loading force, and at this moment control box 12 can show torque.The gained data are carried out analytical calculation, then can draw the transmission efficiency of gear.

Claims

1, a kind of prototype gear transmission efficiency testing table, comprise gear set, the transmission shaft that matches with gear set and, it is characterized in that, on the described motor torque measuring device is housed for gear set provides the motor of power, on the transmission shaft of described gear set loader is housed, wherein: