CN103674576A - Testing device provided with rocker arm assembly simulating mechanism and load assembly simulating mechanism - Google Patents
Testing device provided with rocker arm assembly simulating mechanism and load assembly simulating mechanism Download PDFInfo
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- CN103674576A CN103674576A CN201310703309.2A CN201310703309A CN103674576A CN 103674576 A CN103674576 A CN 103674576A CN 201310703309 A CN201310703309 A CN 201310703309A CN 103674576 A CN103674576 A CN 103674576A
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Abstract
The invention relates to a testing device provided with a rocker arm assembly simulating mechanism and a load assembly simulating mechanism. The testing device comprises a rectangular testing stand and a supporting frame which is located below the testing stand and used for supporting the testing stand, the testing stand is provided with a steering gear installation part, a steering oil cylinder installation part, the rocker arm assembly simulating mechanism and the load assembly simulating mechanism, and the steering gear installation part is used for fixing a steering gear assembly; the supporting frame is composed of four supporting beams which are arranged vertically, the top ends of the four supporting beams are fixedly connected to four corners of the testing stand respectively, the rocker arm assembly simulating mechanism comprises a rocker arm, a ball pin and a steering oil cylinder provided with two piston rods, one end of the rocker arm is connected with a steering gear through a spline, the other end of the rocker arm is connected with any one piston rod of the steering oil cylinder through the ball pin, and the two piston rods of the steering oil cylinder are connected with a left wheel simulating steel plate and a right wheel simulating steel plate respectively. The testing device is capable of being specially used for testing the aligning capability of hydraulic power assisted steering gears, high in universality, simple in structure, capable of being used for different models of hydraulic power assisted steering gears only by replacing the steering gear installation part, and easy to operate.
Description
Technical field
The present invention relates to auto parts and components proving installation, specifically refer to have the test unit of Rocker arm assembly simulation mechanism and load assembly simulation mechanism.
Background technology
Hydraulic power steering gear, is arranged on automotive front near driver's one side.It can provide power-assisted and assist driver to complete the function turning in Vehicular turn.The power resources of hydraulic power steering gear are engines, driving automobile operation of oil pump in the time of engine operation.When hydraulic oil acts on the end face (pressure-bearing surface) of piston, rack piston is produced to thrust.Along with the rising thrust of oil pressure increases, when thrust increases to and makes deflecting roller overcome road resistance, promote deflecting roller and rotate, vehicle enters steering state.
The security performance that time positive ability direct relation of hydraulic power steering gear is installed this hydraulic power steering gear vehicle, therefore, arbitrary hydraulic power steering gear all should return positive aptitude tests before dispatching from the factory, and in the situation that time positive ability is up to standard, can dispatches from the factory and start selling.In prior art, be not also specifically designed to the test board that positive ability is tested that returns to the hydraulic power steering gear of various models.
Summary of the invention
The problems referred to above that exist for prior art, the object of the invention is provides a kind of test unit for the positive aptitude tests of returning of hydraulic power steering gear.
For achieving the above object, the present invention adopts following technical scheme: the test unit with Rocker arm assembly simulation mechanism and load assembly simulation mechanism, comprise the testing table of strip and be positioned at below testing table and for supporting the bracing frame of testing table, on described testing table, there is the steering gear fabricated section of stationary deflector assembly and the fixing steering cylinder fabricated section of Rocker arm assembly simulation mechanism, also comprise the Rocker arm assembly simulation mechanism and the load assembly simulation mechanism that are arranged on testing table;
Support frame as described above consists of four brace summer I, brace summer II, brace summer III and brace summer IV that vertically arrange, and the top of described brace summer I, brace summer II, brace summer III and brace summer IV is fixedly connected on respectively four jiaos of testing table;
Described Rocker arm assembly simulation mechanism comprises rocking arm, steering cylinder and ball pin; Described steering cylinder has steering cylinder cylinder barrel and is positioned at left piston bar and the right piston rod of steering cylinder cylinder barrel, left piston bar and right piston rod are respectively left piston bar external part and right piston rod external part from the one end of stretching out in steering cylinder cylinder barrel, left piston bar external part and left wheel simulation steel plate are rotatably connected, and right piston rod stretches out with right simulated wheel steel plate and is rotatably connected; The bulb of described ball pin is arranged on left piston bar external part or right piston rod external part rotationally, between the club of ball pin and rocking arm, be provided with drive link, one end of described drive link is fixedly connected with the club of ball pin, the other end of drive link and one end of rocking arm are rotatably connected; the other end of rocking arm has spline, and rocking arm has one end of spline and the splined end of steering gear is connected;
Described load assembly simulation mechanism comprises left hydraulic jack and right hydraulic jack; Described left hydraulic jack has left hydraulic jack cylinder barrel, the bottom of described left hydraulic jack cylinder barrel has left cylinder barrel oil-in and left cylinder barrel oil-out, in left hydraulic jack cylinder barrel, be provided with left piston bar, one end and left wheel simulation steel plate that described left piston bar stretches out left hydraulic jack cylinder barrel are rotatably connected; Right hydraulic jack has right hydraulic jack cylinder barrel, the bottom of described right hydraulic jack cylinder barrel has right cylinder barrel oil-in and right cylinder barrel oil-out, in right hydraulic jack cylinder barrel, be provided with right piston rod, one end and right simulated wheel steel plate that described right piston rod stretches out right hydraulic jack cylinder barrel are rotatably connected; Described oil pump has oil pump oil-in and oil pump oil-out, and described oil pump oil-out is communicated with left cylinder barrel oil-in and right cylinder barrel oil-in by the first oil pipe, and oil pump oil-in is communicated with left cylinder barrel oil-out and right cylinder barrel oil-out by the second oil pipe.
As optimization, described steering gear fabricated section is the first horizontal fixation steel plate and the first vertical L shaped structure that steel plate formation is installed, the described first horizontal fixation steel plate and the first vertical installation steel plate are the integral structure that one-step casting obtains, the first horizontal fixation steel plate horizontally set and being installed on testing table, the first vertical steel plate of installing vertically arranges and on it, has a plurality of for the first mounting hole of steering assembly is installed.
As optimization, described steering cylinder fabricated section is the second horizontal fixation steel plate and the second vertical T shape structure that steel plate formation is installed, the second vertical installation steel plate vertically arranges and bottom is installed on testing table, the second horizontal fixation steel plate horizontally set and be installed in the second vertical top that steel plate is installed, the described second horizontal fixation steel plate top has the U-shaped anchor ear of a plurality of fixedly steering cylinder cylinder barrels.
With respect to prior art, tool of the present invention has the following advantages: the invention provides a kind of test unit that returns positive aptitude tests that is specifically designed to hydraulic power steering gear, this test unit highly versatile, hydraulic power steering gear in the face of different model, only need to change steering gear fabricated section and steering cylinder fabricated section, simple to operate, highly versatile.
Accompanying drawing explanation
Fig. 1 is the structural representation with the test unit of Rocker arm assembly simulation mechanism and load assembly simulation mechanism.
Fig. 2 is the structural representation of Rocker arm assembly simulation mechanism in automotive steering.
Fig. 3 is the structural representation of load assembly simulation mechanism.
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Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Referring to Fig. 1, Fig. 2 and Fig. 3, the test unit with Rocker arm assembly simulation mechanism and load assembly simulation mechanism, comprise the testing table 20 of strip and be positioned at below testing table and for supporting the bracing frame of testing table, on testing table, there is the steering gear fabricated section of stationary deflector assembly and the fixing steering cylinder fabricated section of Rocker arm assembly simulation mechanism, also comprise the Rocker arm assembly simulation mechanism and the load assembly simulation mechanism that are arranged on testing table;
Bracing frame is by four brace summer I 21 that vertically arrange, brace summer II 22, brace summer III 23 and brace summer IV 24 form, described brace summer I 21, brace summer II 22, the top of brace summer III 23 and brace summer IV 24 is fixedly connected on respectively four jiaos of testing table 20, wherein brace summer I 21 and brace summer II 22 are positioned at the front side of testing table, described brace summer III 23 and brace summer IV 24 are positioned at the rear side of testing table, buttress brace 25 before being provided with between brace summer I 21 and brace summer II 22, buttress brace 26 after being provided with between brace summer III 23 and brace summer IV 24, between brace summer I 21 and brace summer III 23, be provided with left buttress brace 27, left buttress brace is connected to the bottom of brace summer I and brace summer III, between brace summer II 22 and brace summer IV 24, be provided with right buttress brace 28, right buttress brace is connected to the bottom of brace summer II and brace summer IV, the rigidity that further raising bracing frame is set and the stability of front buttress brace 25, rear buttress brace 26, left buttress brace 27 and right buttress brace 28, the bottom of left buttress brace 27 and right buttress brace 28 has respectively the contact area of left buttress brace flange 270 and right buttress brace flange 280 increase bracing frames and bottom surface or other supporting surfaces, improves the stability of bracing frame.
Rocker arm assembly simulation mechanism comprises rocking arm 70, steering cylinder and ball pin; Described steering cylinder has steering cylinder cylinder barrel 75 and is positioned at left piston bar 73 and the right piston rod 72 of steering cylinder cylinder barrel 75, left piston bar 73 and right piston rod 72 are respectively left piston bar external part and right piston rod external part from the one end of stretching out in steering cylinder cylinder barrel 75, left piston bar external part and left wheel simulation steel plate 1 are rotatably connected, and right piston rod stretches out with right simulated wheel steel plate 2 and is rotatably connected; The bulb 720 of described ball pin is arranged on left piston bar external part or right piston rod external part rotationally, between the club 721 of ball pin and rocking arm 70, be provided with drive link 723, one end of described drive link 723 is fixedly connected with the club of ball pin 721, one end of the other end of drive link 723 and rocking arm 70 is rotatably connected; the other end of rocking arm 70 has spline, and one end that rocking arm 70 has spline is connected with the splined end of steering gear 80.
Rocker arm assembly simulation mechanism can also comprise left connecting link 71 and right connecting link 74, one end of described left connecting link 71 is rotatably connected by left rotary shaft and the left wheel simulation steel plate 1 being vertically arranged on left wheel simulation steel plate 1, the other end of left connecting link 71 is fixedly connected with left piston bar external part, one end of described right connecting link 74 is rotatably connected by right spindle and the right simulated wheel steel plate 2 being vertically arranged on right simulated wheel steel plate 2, and the other end of right connecting link 74 is fixedly connected with right piston rod external part.
Load hydraulic cylinder assembly comprises left hydraulic jack and right hydraulic jack, described left hydraulic jack has left hydraulic jack cylinder barrel 53, the bottom of described left hydraulic jack cylinder barrel 53 has left cylinder barrel oil-in and left cylinder barrel oil-out, in left hydraulic jack cylinder barrel 53, be provided with left piston bar 51, one end of left piston bar 51 is positioned at left hydraulic jack cylinder barrel 53, the other end stretches out left hydraulic jack cylinder barrel 53, and one end and left wheel simulation steel plate 1 that left piston bar 51 stretches out left hydraulic jack cylinder barrel 53 are rotatably connected; Right hydraulic jack has right hydraulic jack cylinder barrel 54, and the bottom of described right hydraulic jack cylinder barrel 54 has right cylinder barrel oil-in and right cylinder barrel oil-out; In right hydraulic jack cylinder barrel 54, be provided with right piston rod 52, one end of right piston rod 52 is positioned at right hydraulic jack cylinder barrel 54, the other end stretches out right hydraulic jack cylinder barrel 54, and one end and right simulated wheel steel plate 2 that right piston rod 52 stretches out right hydraulic jack cylinder barrel 54 are rotatably connected.
Oil pump 3 has oil pump oil-in and oil pump oil-out, and described oil pump oil-out is communicated with left cylinder barrel oil-in and right cylinder barrel oil-in by the first oil pipe, and oil pump oil-in is communicated with left cylinder barrel oil-out and right cylinder barrel oil-out by the second oil pipe.Described the first oil pipe consists of oil pump outlet line, left cylinder barrel oil inlet pipe 57 and right cylinder barrel oil inlet pipe 56, and described the second oil pipe consists of pump inlet pipe, left cylinder barrel flowline 59 and right cylinder barrel flowline 58; Also be provided with the first three-pronged connector 61 and the second three-pronged connector 62; A bifurcated of the first three-pronged connector 61 is communicated with one end of oil pump outlet line, two other bifurcated is communicated with one end of left cylinder barrel oil inlet pipe 57 and one end of right cylinder barrel oil inlet pipe 56 respectively, the other end of described oil pump outlet line is communicated with oil pump oil-out, and the other end of the other end of described left cylinder barrel oil inlet pipe 57 and right cylinder barrel oil inlet pipe 56 is communicated with left cylinder barrel oil-in and right cylinder barrel oil-in respectively; A bifurcated of the second three-pronged connector 62 is communicated with one end of pump inlet pipe, two other bifurcated is communicated with one end of left cylinder barrel flowline 59 and one end of right cylinder barrel flowline 58 respectively, the other end of described pump inlet pipe is communicated with oil pump oil-in, and the other end of the other end of described left cylinder barrel flowline 59 and right cylinder barrel flowline 58 is communicated with left cylinder barrel oil-out and right cylinder barrel oil-out respectively.
Steering gear fabricated section can be the first horizontal fixation steel plate 32 and the first vertical L shaped structure that steel plate 33 formations are installed, the integral structure that the first horizontal fixation steel plate 32 and the first vertical installation steel plate 33 obtain for one-step casting, the first horizontal fixation steel plate 32 horizontally sets and being installed on testing table, on the first horizontal fixation steel plate, there are a plurality of threaded holes, be generally four, be positioned at four jiaos of the first horizontal fixation steel plate, bolt is fixed on the first horizontal fixation steel plate on testing table through threaded hole, the first vertical steel plate 33 of installing vertically arranges and on it, has a plurality of (by being three) for the first mounting hole 34 of steering gear housing is installed.This first mounting hole is threaded hole, and for the steering gear to a series of identical models is tested, the first vertical installation on steel plate is typically provided with the different a plurality of threaded holes of shape size, and these threaded holes are three multiple normally.In order to strengthen the rigidity of steering gear fabricated section, the first horizontal fixation steel plate 32 and the first vertical the first stiffening plate 35 that is also provided with right-angle triangle between steel plate 33 of installing, two right-angle sides of described the first stiffening plate 35 are fixedly connected on respectively the first horizontal fixation steel plate 32 and the first vertical install on the corresponding end of steel plate 33 (when a right-angle side of the first stiffening plate is fixedly connected on the horizontal left part of the first horizontal fixation steel plate, another right-angle side of the first stiffening plate is also fixedly connected on first vertically on the horizontal left part of installation steel plate).
Steering cylinder fabricated section is the second horizontal fixation steel plate 42 and the second vertical T shape structure that steel plate 43 formations are installed, the second vertical installation steel plate 43 vertically arranges and bottom is installed on testing table, the second horizontal fixation steel plate 42 horizontally sets and be installed in the second vertical top that steel plate 43 is installed, the described second horizontal fixation steel plate 42 tops have the U-shaped anchor ear 44 of a plurality of fixedly steering cylinder cylinder barrels.The second vertical bottom that steel plate 43 is installed has flange, on flange, have and a plurality of the second vertical steel plate 43 of installing is fixed on to the threaded hole on testing table, steering cylinder cylinder barrel is connected in U-shaped anchor ear 44, in order better steering cylinder cylinder barrel to be fixed, a plurality of U-shaped anchor ears 44 can be set, be generally 3 ~ 4.
The intensity being connected with left cylinder barrel oil-out in order to improve left cylinder barrel flowline 59, the intensity that left cylinder barrel oil inlet pipe 57 is connected with left cylinder barrel oil-in, the intensity that right cylinder barrel flowline 58 is connected with right cylinder barrel oil-out, the intensity that right cylinder barrel oil inlet pipe 56 is connected with right cylinder barrel oil-in, left cylinder barrel oil-out is fixedly connected with left cylinder barrel fuel discharge port 511, left cylinder barrel oil-in is fixedly connected with left cylinder barrel fuel inlet neck 510, right cylinder barrel oil-out is fixedly connected with right cylinder barrel fuel discharge port 521, and right cylinder barrel oil-in is fixedly connected with right cylinder barrel fuel inlet neck 520.
Use this test unit with Rocker arm assembly simulation mechanism and load assembly simulation mechanism carry out hydraulic power steering gear return positive aptitude tests time, by steering gear fabricated section, steering assembly is arranged on testing table, by steering cylinder fabricated section, steering cylinder cylinder barrel is arranged on testing table, left hydraulic jack and right hydraulic jack are installed on testing table again, wherein the bottom of left hydraulic jack cylinder barrel and right hydraulic jack cylinder barrel is arranged on testing table rotationally, at the end of steering gear spool closure dish, hand rotation bearing circle is inputted rotating torque to steering gear, valve core rotation drives rack piston to move up and down, rack piston takes output shaft rotation to, one end that output shaft is provided with spline is connected with one end that rocking arm has spline, thereby output shaft drives rocking arm to rotate, rocking arm is passed to rotating torque in a piston rod of steering cylinder, one, two piston rods of piston hydraulic pressure oil cylinder are stretched, a contracting, thereby realizing simulation left and right front-wheel left wheel simulation steel plate and right simulated wheel steel plate rotates.
Finally explanation is, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (3)
1. the test unit with Rocker arm assembly simulation mechanism and load assembly simulation mechanism, it is characterized in that: comprise the testing table (20) of strip and be positioned at below testing table and for supporting the bracing frame of testing table, on described testing table, there is the steering gear fabricated section of stationary deflector assembly and the fixing steering cylinder fabricated section of Rocker arm assembly simulation mechanism, also comprise the Rocker arm assembly simulation mechanism and the load assembly simulation mechanism that are arranged on testing table;
Support frame as described above consists of four the brace summer I (21) that vertically arrange, brace summer II (22), brace summer III (23) and brace summer IV (24), and the top of described brace summer I (21), brace summer II (22), brace summer III (23) and brace summer IV (24) is fixedly connected on respectively four jiaos of testing table (20);
Described Rocker arm assembly simulation mechanism comprises rocking arm (70), steering cylinder and ball pin; Described steering cylinder has steering cylinder cylinder barrel (75) and is positioned at left piston bar (73) and the right piston rod (72) of steering cylinder cylinder barrel (75), left piston bar (73) and right piston rod (72) are respectively left piston bar external part and right piston rod external part from the one end of stretching out in steering cylinder cylinder barrel (75), left piston bar external part and left wheel simulation steel plate (1) are rotatably connected, and right piston rod stretches out with right simulated wheel steel plate and is rotatably connected; The bulb of described ball pin (720) is arranged on left piston bar external part or right piston rod external part rotationally, between the bulb of ball pin (721) and rocking arm (70), be provided with drive link (723), one end of described drive link (723) is fixedly connected with the bulb (721) of ball pin, one end of the other end of drive link (723) and rocking arm (70) is rotatably connected; the other end of rocking arm (70) has spline, and rocking arm (70) has one end of spline and the splined end of steering gear is connected;
Described load assembly simulation mechanism comprises left hydraulic jack and right hydraulic jack; Described left hydraulic jack has left hydraulic jack cylinder barrel (53), the bottom of described left hydraulic jack cylinder barrel (53) has left cylinder barrel oil-in and left cylinder barrel oil-out, in left hydraulic jack cylinder barrel (53), be provided with left piston bar (51), one end and left wheel simulation steel plate (1) that described left piston bar (51) stretches out left hydraulic jack cylinder barrel (53) are rotatably connected; Right hydraulic jack has right hydraulic jack cylinder barrel (54), the bottom of described right hydraulic jack cylinder barrel (54) has right cylinder barrel oil-in and right cylinder barrel oil-out, in right hydraulic jack cylinder barrel, be provided with right piston rod (52), one end and right simulated wheel steel plate (2) that described right piston rod (52) stretches out right hydraulic jack cylinder barrel (54) are rotatably connected;
Described oil pump (3) has oil pump oil-in and oil pump oil-out, and described oil pump oil-out is communicated with left cylinder barrel oil-in and right cylinder barrel oil-in by the first oil pipe, and oil pump oil-in is communicated with left cylinder barrel oil-out and right cylinder barrel oil-out by the second oil pipe.
2. the test unit with Rocker arm assembly simulation mechanism and load assembly simulation mechanism according to claim 1, it is characterized in that: described steering gear fabricated section is the first horizontal fixation steel plate (32) and the first vertical L shaped structure that steel plate (33) formation is installed, the integral structure that the described first horizontal fixation steel plate (32) and the first vertical installation steel plate (33) obtain for one-step casting, the first horizontal fixation steel plate (32) horizontally set and being installed on testing table, the first vertical steel plate (33) of installing vertically arranges and on it, has a plurality of for first mounting hole (34) of steering assembly is installed.
3. the test unit with Rocker arm assembly simulation mechanism and load assembly simulation mechanism according to claim 1, it is characterized in that: described steering cylinder fabricated section is the second horizontal fixation steel plate (42) and the second vertical T shape structure that steel plate (43) formation is installed, the second vertical installation steel plate (43) vertically arranges and bottom is installed on testing table, the second horizontal fixation steel plate (42) horizontally set and be installed in the second vertical top that steel plate (43) is installed, the described second horizontal fixation steel plate (42) top has the U-shaped anchor ear (44) of a plurality of fixedly steering cylinder cylinder barrels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310703309.2A CN103674576A (en) | 2013-12-19 | 2013-12-19 | Testing device provided with rocker arm assembly simulating mechanism and load assembly simulating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310703309.2A CN103674576A (en) | 2013-12-19 | 2013-12-19 | Testing device provided with rocker arm assembly simulating mechanism and load assembly simulating mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN103674576A true CN103674576A (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310703309.2A Pending CN103674576A (en) | 2013-12-19 | 2013-12-19 | Testing device provided with rocker arm assembly simulating mechanism and load assembly simulating mechanism |
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|---|---|
| CN (1) | CN103674576A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082105A (en) * | 2019-05-27 | 2019-08-02 | 儒拉玛特自动化技术(苏州)有限公司 | A kind of rack-and-pinion assisted steering system noise test equipment |
-
2013
- 2013-12-19 CN CN201310703309.2A patent/CN103674576A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082105A (en) * | 2019-05-27 | 2019-08-02 | 儒拉玛特自动化技术(苏州)有限公司 | A kind of rack-and-pinion assisted steering system noise test equipment |
| CN110082105B (en) * | 2019-05-27 | 2023-12-01 | 儒拉玛特自动化技术(苏州)有限公司 | Noise testing equipment for rack power-assisted steering device |
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Application publication date: 20140326 |
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