CN102967398A - Torque testing device - Google Patents
Torque testing device Download PDFInfo
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- CN102967398A CN102967398A CN2012104435060A CN201210443506A CN102967398A CN 102967398 A CN102967398 A CN 102967398A CN 2012104435060 A CN2012104435060 A CN 2012104435060A CN 201210443506 A CN201210443506 A CN 201210443506A CN 102967398 A CN102967398 A CN 102967398A
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- hydraulic cylinder
- gear
- torsion
- testing apparatus
- pedestal
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Abstract
The invention discloses a torque testing device. The device comprises a base, a hydraulic cylinder one, a hydraulic cylinder two, a pressure limiting valve, a gear, a gear push rod and a differential pressure gauge. The hydraulic cylinder one, the hydraulic cylinder two and the gear are installed on the base respectively; the gear push rod is meshed with the gear, and two ends of the gear push rod are connected with piston rods of the hydraulic cylinder one and the hydraulic cylinder two respectively; and the pressure limiting valve and the differential pressure gauge are arranged between the hydraulic cylinder one and the hydraulic cylinder two through pipelines. When the torque testing device is applied, a large stroke and a large rotation speed are not needed, and the device is particularly suitable for torque testing of angular-displacement electric actuators.
Description
Technical field
The present invention relates to a kind of torsion-testing apparatus, be specifically related to a kind of device for the test of actuator output torque.
Background technology
Present electronic execution architecture test output torque proving installation commonly used has dynamometer machine and lever weight.Dynamometer machine has the delivery stroke requirement when test moment, namely turn over certain angle, just can add moment when reaching certain speed, and test stroke and the rotating speed of angle stroke actuator are lower, are not suitable for using dynamometer machine.Adopt the proving installation of lever weight type, it is monolateral stressed, and moment values changes greatly.Therefore be necessary to develop a kind of new proving installation.
Summary of the invention
To the objective of the invention is the defective that exists in the prior art in order solving, to provide a kind of for small-sized slow-speed of revolution actuator, and the torsion-testing apparatus that can regulate.
In order to achieve the above object, the invention provides a kind of torsion-testing apparatus, comprise pedestal, hydraulic cylinder one, hydraulic cylinder two, pressure limiting valve, gear, gear push rod and differential pressure indicator; Described hydraulic cylinder one, hydraulic cylinder two, gear are installed in respectively on the described pedestal; Described gear push rod is meshed with described gear, and two ends link to each other with the piston rod of hydraulic cylinder one with hydraulic cylinder two respectively; Described pressure limiting valve links to each other with hydraulic cylinder two with hydraulic cylinder one by pipeline respectively with differential pressure indicator.
Above-mentioned torsion-testing apparatus also comprises the adjustment valve, and this is adjusted valve and links to each other with hydraulic cylinder two with hydraulic cylinder one respectively by pipeline.
Wherein, hydraulic cylinder one is identical with hydraulic cylinder two cylinder diameters, and with one heart.
Described pedestal comprises pedestal bottom plate, hydraulic cylinder support member and bearing seat; Described hydraulic cylinder support member and bearing seat are separately fixed on the pedestal bottom plate; Described hydraulic cylinder one and hydraulic cylinder two are fixed on the pedestal by the hydraulic cylinder support member; Described gear is rotationally connected by bearing seat and pedestal.In pedestal, described hydraulic cylinder support member is chosen as supporting seat or a plurality of back up pad, preferred a plurality of back up pads that opening shape and hydraulic cylinder one and hydraulic cylinder two peripheral shape are complementary that have; Described bearing seat is provided with chute, and the gear push rod is located in the chute.
Described pressure limiting valve is bidirectional pressure regulating valve or two one-way pressure regulating valves that parallel connection is oppositely installed.
The present invention has the following advantages compared to existing technology: utilize gear driven gear push rod, change torque axis the pressure reduction of two hydraulic cylinders into, show torque by differential pressure indicator.When torsion-testing apparatus of the present invention is used, do not need large stroke and rotating speed, be particularly suitable for the torsion-testing of part-turn electric actuator.
Description of drawings
Fig. 1 is the structural representation of torsion-testing apparatus of the present invention;
Fig. 2 is the assembling synoptic diagram of pedestal and hydraulic cylinder among Fig. 1;
Fig. 3 is the structural representation of Fig. 1 bottom bracket.
Among the figure, the 1-pedestal, 2-hydraulic cylinder one, 3-gear push rod, the 4-gear, the 5-pressure limiting valve, 6-hydraulic cylinder two, the 7-differential pressure indicator, 8-adjusts valve, 9-pipeline, 10-pedestal bottom plate, 11-hydraulic cylinder support member, 12-bearing seat, 13-chute.
Embodiment
Below in conjunction with accompanying drawing torsion-testing apparatus of the present invention is elaborated.
As shown in Figure 1, torsion-testing apparatus of the present invention comprises pedestal 1, hydraulic cylinder 1, gear push rod 3, gear 4, pressure limiting valve 5, hydraulic cylinder 26, differential pressure indicator 7 and adjusts valve 8.In conjunction with Fig. 2, pedestal 1 comprises pedestal bottom plate 10, hydraulic cylinder support member 11 and bearing seat 12.Hydraulic cylinder 1 and hydraulic cylinder 26 cylinder diameters equate, and two axis point-blank.Hydraulic cylinder support member 11 is 4 back up pads that are provided with opening, and hydraulic cylinder 1 and hydraulic cylinder 26 respectively dispose two of back up pads, and are fixed on the pedestal bottom plate 10.The opening shape of each back up pad is complementary with corresponding hydraulic cylinder 1 and hydraulic cylinder 26 peripheral shape respectively.Hydraulic cylinder 1 and hydraulic cylinder 26 are separately fixed in the opening of pedestal bottom plate 10 two end supports plates, are fixed on the pedestal 1 by back up pad.Bearing seat 12 is fixed on the pedestal bottom plate, and between hydraulic cylinder 1 and hydraulic cylinder 26.Bearing seat 12 is provided with chute 13, as shown in Figure 3.Gear 4 is rotatably connected on the pedestal 1 by bearing seat 12.Gear push rod 3 is installed in the chute 13 of bearing seat 12, be meshed with gear 4, and two ends links to each other with the piston rod of hydraulic cylinder 1 with hydraulic cylinder 26 respectively, can move axially along the center of two hydraulic cylinders, and chute 13 limiting gear push rods 3 are made transversal displacement.Pressure limiting valve 5, adjustment valve 8 and differential pressure indicator 7 are mounted between hydraulic cylinder 1 and the hydraulic cylinder 26 by pipeline 9 respectively.
During use, by adjusting the initial position of valve 8 adjusting gears, the adjusting pressuring knob setting threshold of rotation pressure limiting valve 5 is finished torque adjusting.The output terminal of topworks is linked to each other with gear 4, by 3 motions of gear 4 driven gear push rods, 6 one pressurizeds of hydraulic cylinder 1 and hydraulic cylinder, a tension, form pressure reduction, when both sides pressure reduction surpasses the threshold value of pressure limiting valve 5, pressure limiting valve 5 valve opens, liquid is flowed to tension one side hydraulic cylinder by pressurized one side hydraulic cylinder by pipeline 9, gear push rod 3 persistent movements, this moment, pressure reduction remained on threshold value, and the diameter of pressure reduction, hydraulic cylinder body diameter and the gear 4 that shows by differential pressure indicator 7 can obtain the moment of torsion of topworks's input.
Suppose that gear 4 radiuses are R, hydraulic cylinder 1 and hydraulic cylinder 26 inner hole sections are A, and pressure reduction is P, and oil cylinder friction force is f, and then moment of torsion can be written as:
Can be directly the displayed value of differential pressure indicator being adjusted into moment of torsion gets final product.
Claims (7)
1. a torsion-testing apparatus is characterized in that: comprise pedestal, hydraulic cylinder one, hydraulic cylinder two, pressure limiting valve, gear, gear push rod and differential pressure indicator; Described hydraulic cylinder one, hydraulic cylinder two, gear are installed in respectively on the described pedestal; Described gear push rod is meshed with described gear, and two ends link to each other with the piston rod of hydraulic cylinder one with hydraulic cylinder two respectively; Described pressure limiting valve links to each other with hydraulic cylinder two with hydraulic cylinder one by pipeline respectively with differential pressure indicator.
2. torsion-testing apparatus according to claim 1, it is characterized in that: described torsion-testing apparatus also comprises the adjustment valve; Described adjustment valve links to each other with hydraulic cylinder two with hydraulic cylinder one respectively by pipeline.
3. torsion-testing apparatus according to claim 1 and 2, it is characterized in that: described hydraulic cylinder one is identical with hydraulic cylinder two cylinder diameters, and with one heart.
4. torsion-testing apparatus according to claim 1 and 2, it is characterized in that: described pedestal comprises pedestal bottom plate, hydraulic cylinder support member and bearing seat; Described hydraulic cylinder support member and bearing seat are separately fixed on the pedestal bottom plate; Described hydraulic cylinder one and hydraulic cylinder two are fixed on the pedestal by the hydraulic cylinder support member; Described gear is rotationally connected by bearing seat and pedestal.
5. torsion-testing apparatus according to claim 4, it is characterized in that: the hydraulic cylinder support member is supporting seat or a plurality of back up pad.
6. torsion-testing apparatus according to claim 4, it is characterized in that: described bearing seat is provided with chute; Described gear push rod is located in the chute.
7. torsion-testing apparatus according to claim 1 and 2 is characterized in that: described pressure limiting valve is bidirectional pressure regulating valve or two one-way pressure regulating valves that parallel connection is oppositely installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104435060A CN102967398A (en) | 2012-11-08 | 2012-11-08 | Torque testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104435060A CN102967398A (en) | 2012-11-08 | 2012-11-08 | Torque testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102967398A true CN102967398A (en) | 2013-03-13 |
Family
ID=47797693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104435060A Pending CN102967398A (en) | 2012-11-08 | 2012-11-08 | Torque testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102967398A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092242A (en) * | 2015-08-13 | 2015-11-25 | 宁波新世达精密机械有限公司 | Static test board for plastic gear |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB828355A (en) * | 1957-03-15 | 1960-02-17 | Napier & Son Ltd | Transmission gearing including means for measuring torque |
| CN2081531U (en) * | 1990-05-12 | 1991-07-24 | 杨光华 | Hydraulic balance force torque measuring instrument |
| CN101158609A (en) * | 2007-10-22 | 2008-04-09 | 浙江金华自动化仪表有限公司 | Force moment testing device of corner type electric actuating mechanism |
-
2012
- 2012-11-08 CN CN2012104435060A patent/CN102967398A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB828355A (en) * | 1957-03-15 | 1960-02-17 | Napier & Son Ltd | Transmission gearing including means for measuring torque |
| CN2081531U (en) * | 1990-05-12 | 1991-07-24 | 杨光华 | Hydraulic balance force torque measuring instrument |
| CN101158609A (en) * | 2007-10-22 | 2008-04-09 | 浙江金华自动化仪表有限公司 | Force moment testing device of corner type electric actuating mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092242A (en) * | 2015-08-13 | 2015-11-25 | 宁波新世达精密机械有限公司 | Static test board for plastic gear |
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Application publication date: 20130313 |