CN218098333U - Drive axle on-line multifunctional test bench - Google Patents

Abstract

The utility model provides an online multi-functional test bench of transaxle, through the fixed plate, first/second lead screw, first/second slide, first/second worm wheel, the cooperation of first/second worm is used, make the test bench drive the locating plate through rotating first worm and slide along the spacing groove in the locating seat, the transaxle of placing on the locating plate is moved in the drive simultaneously, through the gag lever post of suit in the locating seat, with the synchronous clamp in transaxle both ends fix between gag lever post and locating plate, make transaxle dismantle with simple to operate swift, safety and reliability. Through the cooperation use of first/second T type slider, fixing bolt, bracing piece, third/fourth slide ejector pin, make the test bench drive two fixed subassembly antiport through rotating two-way lead screw, and then adjust the interval between the positioning seat according to the transaxle of different wheel bases and different grade type, conveniently adjust the position of positioning seat, be convenient for install fixedly the transaxle, improve test bench's application scope.

Description

Drive axle on-line multifunctional test bench

Technical Field

The utility model belongs to the test equipment field relates to a test bench of test drive axle performance, especially relates to an online multi-functional test bench of transaxle.

Background

At present, in agricultural machinery and engineering machinery production and manufacturing enterprises in China, after series of driving axles for agricultural machinery and series of driving axles for engineering machinery are manufactured and assembled, various functions of a driving axle need to be tested for checking functions of forward and reverse rotation operation, parking braking, service braking, steering and the like of the driving axle. The test bench that current part is used for the transaxle test needs to use the bolt manual fixation on the positioning seat that corresponds to the transaxle in the use, leads to the dismantlement of transaxle and installation all more troublesome, when fixing the transaxle to different wheel bases and different grade type simultaneously, and the test bench need install the positioning seat of different grade type, and it is very inconvenient to adjust.

The application number of the utility model patent entitled by the national intellectual property office in 2017, 3 and 29 months, a test bed for detecting a drive axle is as follows: 201621015388.3, the authorization notice number is: CN206056954U; the application date is: 2016, 8, 31 months. A test stand for inspecting a drive axle is disclosed. The method comprises the following steps: the test bench comprises a driving motor, a transmission shaft, a support, a hydraulic station and an electric control cabinet for controlling a power supply of the test bench, wherein a drive axle is fixed on the support through a fixing plate, one end of the transmission shaft is connected with an input shaft of the drive axle through a conversion flange, and the other end of the transmission shaft is connected with an output shaft of the driving motor; gear oil is filled in the drive axle, a hydraulic oil pipe of the hydraulic station is connected with a brake of the drive axle, and a flow oil pipe of the hydraulic station is connected with a brake radiator of the drive axle. The electric control cabinet is used for realizing manual speed regulation of the driving motor from 0 to 740 revolutions, simulating the running state of the driving axle at different rotating speeds, checking the using effect and various parameters of the driving axle, and realizing detection of the braking performance, the sealing performance and the differential performance of the driving axle through the hydraulic station. The running state of the drive axle under different rotating speeds is simulated by means of manual speed regulation, and the accuracy and reliability of the obtained detection parameters are difficult to guarantee. Therefore, it is necessary to provide an online multifunctional test bench for a drive axle, which has a compact structure, is convenient to operate, and has accurate and reliable measurement data.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defects or shortcomings in the prior art, the present application aims to provide an online multifunctional test bench for a drive axle, which comprises a frame, a motor, a fixing plate, an oil tank, a fixing assembly, a first screw rod, a second screw rod, a first adjusting mechanism, a second adjusting mechanism and a protective cover; the motor is fixedly installed at the top of the rack, the fixed plate is fixedly installed at the inner side of the rack, the oil tank with the pulley block at the bottom is placed below the fixed plate, the fixed assembly is connected to the top of the rack in a sliding mode, the first screw rod and the second screw rod are respectively and rotatably connected between the rack and the fixed plate, the first adjusting mechanism is sleeved on the outer sides of the first screw rod and the second screw rod through threads, and the second adjusting mechanism is in transmission connection between the first screw rod and the second screw rod fixedly installed at the bottom of the fixed plate; the protective cover is arranged at the outer side of one end of the motor arranged at the top of the frame.

The middle part of the top of the rack is provided with a position avoiding port, and the oil tank is provided with a liquid inlet under the position avoiding port.

The first adjusting mechanism comprises a first sliding seat in threaded sleeve connection with the outer side of the first screw rod and a second sliding seat in threaded sleeve connection with the outer side of the second screw rod, a bidirectional screw rod and a supporting rod are respectively and rotatably connected between the first sliding seat and the second sliding seat, a third sliding seat and a fourth sliding seat in threaded sleeve connection with the outer side of the supporting rod are respectively and movably in threaded sleeve connection with the outer side of the supporting rod, the tops of the third sliding seat and the fourth sliding seat are respectively in movable sleeve connection with ejector rods on the inner side of the fixed component, and a positioning plate in sliding connection with the inner side of the fixed component is fixedly installed on the tops of the third sliding seat and the fourth sliding seat.

The fixing assembly comprises a first T-shaped sliding block and a second T-shaped sliding block which are connected to the inner side of the rack in a sliding mode and located on two sides of the ejector rod, positioning seats which are movably sleeved on the outer side of the ejector rod and located on the outer side of the positioning plate are fixedly installed inside the first T-shaped sliding block and the second T-shaped sliding block through fixing bolts, limiting rods are movably sleeved inside the positioning seats, and the middle portions of the positioning seats are connected with the positioning plate in a sliding mode through limiting blocks fixedly installed on the outer side of the positioning plate.

The locating seat is internally provided with a limiting groove matched with the limiting block, the locating seat is internally provided with a mounting hole matched with the limiting rod, and the tops of the first T-shaped sliding block and the second T-shaped sliding block are provided with locating columns.

The second adjusting mechanism comprises a first fixed seat, a second fixed seat, a third fixed seat and a fourth fixed seat which are respectively and fixedly arranged at the bottom of the fixed plate, as well as a first worm wheel and a second worm wheel which are respectively and fixedly sleeved at the outer sides of the bottom ends of the first screw rod and the second screw rod, wherein the first fixed seat and the second fixed seat are rotatably connected with a first worm which is meshed with the outer edge of the first worm wheel, and the third fixed seat and the fourth fixed seat are rotatably connected with a second worm which is meshed with the outer edge of the second worm wheel.

The first worm and the second worm are fixedly connected through a limiting bolt, and a limiting boss matched with the second worm is arranged on one side of the first worm.

And a positioning bolt clamped outside the bidirectional screw rod is sleeved on the inner thread of one side of the third sliding seat.

The utility model adopts the above technical scheme after can be expected following beneficial effect:

the utility model discloses a fixed plate, first lead screw, the second lead screw, first slide, the second slide, first worm wheel, the second worm wheel, the cooperation of first worm and second worm is used, make test bench can drive the locating plate through rotating first worm and slide along the inside spacing groove of positioning seat, it removes to drive the transaxle of placing on the locating plate simultaneously, and then through the gag lever post of suit inside the positioning seat, fix the both ends synchronous clamping of transaxle between gag lever post and locating plate, make the dismantlement and the simple to operate swift of transaxle, safety and reliability. In addition, through the cooperation use of first T type slider, second T type slider, fixing bolt, bracing piece, third slide, fourth slide and ejector pin for test bench can carry out the reverse movement through rotating two-way lead screw drive two fixed subassemblies, and then adjust the interval between the positioning seat according to the transaxle of different wheel distances and different grade type, conveniently adjust the position of positioning seat, be convenient for install fixedly to the transaxle, improve test bench's application scope.

Drawings

Fig. 1 is a schematic view of a main structure of an online multifunctional test bench for a drive axle of the present invention;

FIG. 2 is a schematic side view of the drive axle on-line multifunctional test bed of the present invention;

fig. 3 is a schematic cross-sectional side view of a third sliding seat of the online multifunctional test bench for the drive axle of the present invention;

fig. 4 is the utility model discloses a drive axle on-line multifunctional test bench overlook the schematic structure view.

In the figure: 1. a frame; 2. a motor; 3. a fixing plate; 4. an oil tank; 5. a fixing component; 5-1, a first T-shaped sliding block; 5-2, a second T-shaped sliding block; 5-3, fixing bolts; 5-4, positioning seats; 5-5, a limiting rod; 5-6, a limiting block; 6. a first lead screw; 7. a second screw rod; 8. a first adjustment mechanism; 8-1, a first slide carriage; 8-2, a second slide carriage; 8-3, a bidirectional screw rod; 8-4, supporting rods; 8-5, a third slide carriage; 8-6, a fourth slide carriage; 8-7, a top rod; 8-8, positioning plates; 9. a second adjustment mechanism; 9-1, a first fixed seat; 9-2, a second fixed seat; 9-3, a third fixed seat; 9-4, a fourth fixed seat; 9-5, a first worm gear; 9-6, a second worm gear; 9-7, a first worm; 9-8, a second worm; 10. a shield.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. The embodiment of the utility model provides an in the attached drawing: the different kinds of section lines in the figures are not labeled according to the national standards, and do not require the material of the elements in the embodiments, but merely distinguish the sectional views of the elements in the figures.

Referring to fig. 1-4, an online multifunctional test bench for a drive axle comprises a rack 1, a motor 2 fixedly mounted at the top of the rack 1, a fixing plate 3 fixedly mounted at the inner side of the rack 1, and an oil tank 4 disposed below the fixing plate 3 and provided with a pulley block at the bottom, wherein a fixing assembly 5 is slidably connected to the top of the rack 1, a first lead screw 6 and a second lead screw 7 are rotatably connected between the rack 1 and the fixing plate 3 respectively, a first adjusting mechanism 8 is sleeved on the outer side threads of the first lead screw 6 and the second lead screw 7, a second adjusting mechanism 9 in transmission connection with the first lead screw 6 and the second lead screw 7 is fixedly mounted at the bottom of the fixing plate 3, and a protective cover 10 located at the outer side of one end of the motor 2 is mounted at the top of the rack 1.

Wherein the first adjustment mechanism 8 comprises: a first slide seat 8-1 which is sleeved outside the first screw rod 6 in a threaded manner and a second slide seat 8-2 which is sleeved outside the second screw rod 7 in a threaded manner, a bidirectional screw rod 8-3 and a support rod 8-4 are respectively and rotatably connected between the first slide seat 8-1 and the second slide seat 8-2, and a third slide seat 8-5 and a fourth slide seat 8-6 which are movably sleeved outside the support rod 8-4 are respectively sleeved outside the bidirectional screw rod 8-3 in a threaded manner. The top parts of the third sliding seat 8-5 and the fourth sliding seat 8-6 are fixedly provided with a positioning plate 8-8 through a mandril 8-7 movably sleeved on the inner side of the fixed component 5, and the third sliding seat 8-5 and the fourth sliding seat 8-6 can be supported by utilizing a supporting rod 8-4, so that the acting force acting on the bidirectional screw rod 8-3 is reduced, and the bidirectional screw rod 8-3 is prevented from being excessively bent when the drive axle is fixed.

Wherein, fixed subassembly 5 includes: the first T-shaped sliding block 5-1 and the second T-shaped sliding block 5-2 are connected to the inner side of the rack 1 in a sliding mode and located on the two sides of the ejector rod 8-7, a positioning seat 5-4 which is movably sleeved on the outer side of the ejector rod 8-7 and located on the outer side of the positioning plate 8-8 is fixedly installed inside each of the first T-shaped sliding block 5-1 and the second T-shaped sliding block 5-2 through a fixing bolt 5-3, a limiting rod 5-5 is movably sleeved inside each positioning seat 5-4, and the middle portion of each positioning seat 5-4 is connected with the positioning plate 8-8 in a sliding mode through a limiting block 5-6 fixedly installed on the outer side of the positioning plate 8-8.

The positioning seat 5-4 is internally provided with a limiting groove matched with the limiting block 5-6, the limiting block 5-6 can slide on the inner side of the positioning seat 5-4 by utilizing the limiting groove, so that the ejector rod 8-7 can drive the positioning plate 8-8 to move on the inner side of the positioning seat 5-4 conveniently, the positioning seat 5-4 is internally provided with a plurality of mounting holes matched with the limiting rod 5-5, and the limiting rod 5-5 can be installed by selecting a proper hole position according to the type of the drive axle by utilizing the mounting holes. The top parts of the first T-shaped sliding block 5-1 and the second T-shaped sliding block 5-2 are respectively provided with a positioning column, the first T-shaped sliding block 5-1 and the second T-shaped sliding block 5-2 can be limited by the positioning columns, and the first T-shaped sliding block 5-1 and the second T-shaped sliding block 5-2 are prevented from rotating when sliding, so that the fixing bolt 5-3 is prevented from being loosened.

Wherein the second adjusting mechanism 9 includes: the first fixed seat 9-1, the second fixed seat 9-2, the third fixed seat 9-3 and the fourth fixed seat 9-4 are respectively and fixedly arranged at the bottom of the fixed plate 3, and the first worm wheel 9-5 and the second worm wheel 9-6 are respectively and fixedly sleeved at the outer sides of the bottom ends of the first screw rod 6 and the second screw rod 7; the first fixed seat 9-1 and the second fixed seat 9-2 are rotatably connected with a first worm 9-7 meshed with the outer edge of the first worm wheel 9-5, and the third fixed seat 9-3 and the fourth fixed seat 9-4 are rotatably connected with a second worm 9-8 meshed with the outer edge of the second worm wheel 9-6.

The first worm 9-7 and the second worm 9-8 are fixedly connected through a limiting bolt, the first worm 9-7 and the second worm 9-8 are prevented from bending when rotating by the limiting bolt, a limiting boss matched with the second worm 9-8 is arranged on one side of the first worm 9-7, and the first worm 9-7 drives the second worm 9-8 to rotate synchronously by the limiting boss.

Wherein, the centre at 1 top of frame is provided with keeps away a mouthful, and oil tank 4 is located to keep away a mouthful and is provided with the inlet under, utilizes to keep away a mouthful and keeps away the position to the sealing bolt of transaxle bottom, and then makes to dismantle the sealing bolt of transaxle bottom after, the inside gear oil accessible of transaxle keeps away a mouthful and flows into inside the retrieving of oil tank 4 through the inlet.

Wherein, the inner thread of one side of the third sliding seat 8-5 is sleeved with a positioning bolt clamped at the outer side of the bidirectional screw rod 8-3, the positioning bolt is used for limiting and fixing the third sliding seat 8-5, and the third sliding seat 8-5 is conveniently moved to adjust the position between the two positioning plates 8-8, thereby ensuring that the positioning plates 8-8 can be symmetrically distributed at the two sides of the avoiding opening.

When carrying out the agricultural machine transaxle test:

1. before the test, a drive axle is placed on a positioning plate 8-8, the position between positioning seats 5-4 is adjusted by rotating a bidirectional screw 8-3, a limiting rod 5-5 is sleeved inside the positioning seat 5-4, a first worm 9-7 is rotated to drive a second worm 9-8 to rotate, a first screw 6 and a second screw 7 are further driven to rotate, the positioning plate 8-8 is driven to move while the first screw 6 and the second screw 7 rotate, the drive axle is clamped and fixed between the limiting rod 5-5 and the positioning plate 8-8, and then a flange connected to a universal joint on a motor shaft is butted on a flange of the drive axle through bolts.

2. The power supply of the oil pump arranged on the oil tank 4 is switched on, and gear oil in the oil tank 4 is respectively injected into the hubs at the center and two sides of the drive axle. And after the injection is finished, the power supply of the oil pump is disconnected.

3. Two steering oil pipes connected to the matched hydraulic station are connected to two joints of steering oil cylinders of the drive axle respectively.

4. And after the motor is started in forward rotation (forward) or reverse rotation (backward) for 30 minutes, controlling a matched hydraulic station to send a left or right steering command, observing whether steering is flexible and smooth, finally stopping the steering command on the matched hydraulic station, turning off a motor rotating button on the matched hydraulic station, dismounting two steering oil pipe joints at the end of the agricultural machine drive axle, and finishing the test on the agricultural machine drive axle.

When the engineering machinery drive axle test is carried out:

1. before the test, a drive axle is placed on a positioning plate 8-8, the position between positioning seats 5-4 is adjusted by rotating a bidirectional screw rod 8-3, a limiting rod 5-5 is sleeved inside the positioning seat 5-4, a first worm 9-7 is rotated to drive a second worm 9-8 to rotate, a first screw rod 6 and a second screw rod 7 are further driven to rotate, the positioning plate 8-8 is driven to move while the first screw rod 6 and the second screw rod 7 rotate, the drive axle is clamped and fixed between the limiting rod 5-5 and the positioning plate 8-8, and then a flange connected to a universal joint on a motor shaft is butted on a flange of the drive axle through bolts.

2. And a power supply of an oil pump arranged on the oil tank 4 is switched on, and gear oil in the oil tank 4 is respectively injected into the hubs at the center and two sides of the drive axle. And after the injection is finished, the power supply of the oil pump is disconnected.

3. Two parking, driving and steering oil pipes connected to a matched hydraulic station are respectively connected to two joints of a parking, driving and steering oil cylinder of a drive axle.

4. And then, unscrewing a hydraulic working knob on a hydraulic station control panel, pressing an oil pump button next to the hydraulic working knob, pulling a brake knob for opening the parking brake, pressing a parking brake button, and checking whether the hubs on the two sides of the drive axle can rotate or not, wherein the hubs can be still and can not rotate to be in a parking brake normal state. And finally, pulling a brake knob for closing the parking brake to finish the test of the parking brake.

5. And after the motor is started in forward rotation (forward) or reverse rotation (backward) for 30 minutes, the service brake knob on the control panel of the hydraulic station is unscrewed, the service brake button is pressed, the hubs on the two sides of the drive axle are in a service brake state at the moment, finally, the service brake knob is turned off, the motor rotation button on the matched hydraulic station is turned off, and the service brake test is finished.

6. And controlling the matched hydraulic station to send a left or right steering instruction, observing whether steering is flexible and smooth, and finally stopping the steering instruction on the matched hydraulic station to finish the steering test.

7. And respectively detaching two parking, driving and steering oil pipes at the end of the engineering mechanical drive axle, and ending the test of the engineering mechanical drive axle.

Those not described in detail in this specification are well within the skill of the art.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the technical scope of the present invention is not limited to the technical solutions of the specific combinations of the technical features described above, and other technical solutions formed by arbitrary combinations of the technical features described above or their equivalents may be covered without departing from the technical idea described above. Therefore, all modifications, equivalents and the like which come within the spirit of the invention are intended to be included within the scope of the following claims.

Claims (8)

1. A drive axle on-line multifunctional test bench comprises a rack (1), a motor (2), a fixing plate (3), an oil tank (4), a fixing assembly (5), a first screw rod (6), a second screw rod (7), a first adjusting mechanism (8), a second adjusting mechanism (9) and a protective cover (10); the method is characterized in that: the motor (2) is fixedly installed at the top of the rack (1), the fixing plate (3) is fixedly installed on the inner side of the rack (1), an oil tank (4) with a pulley block arranged at the bottom is placed below the fixing plate (3), the fixing component (5) is connected to the top of the rack (1) in a sliding mode, the first lead screw (6) and the second lead screw (7) are respectively connected between the rack (1) and the fixing plate (3) in a rotating mode, the first adjusting mechanism (8) is sleeved on the outer sides of the first lead screw (6) and the second lead screw (7) through threads, and the second adjusting mechanism (9) is connected between the first lead screw (6) and the second lead screw (7) which are fixedly installed at the bottom of the fixing plate (3) in a transmission mode; the protective cover (10) is arranged on the outer side of one end of the motor (2) arranged on the top of the frame (1).

2. The drive axle on-line multifunctional test bench according to claim 1, characterized in that: the middle part of the top of the frame (1) is provided with a position avoiding port, and the oil tank (4) is arranged under the position avoiding port and is provided with a liquid inlet.

3. The drive axle on-line multifunctional test bench according to claim 1, characterized in that: the first adjusting mechanism (8) comprises a first sliding seat (8-1) and a second sliding seat (8-2), wherein the first sliding seat (8-1) is in threaded sleeve connection with the outer side of the first screw rod (6), the second sliding seat (8-2) is in threaded sleeve connection with the outer side of the second screw rod (7), a bidirectional screw rod (8-3) and a supporting rod (8-4) are respectively connected between the first sliding seat (8-1) and the second sliding seat (8-2) in a rotating mode, the outer side of the bidirectional screw rod (8-3) is respectively in threaded sleeve connection with a third sliding seat (8-5) and a fourth sliding seat (8-6) which are movably sleeved on the outer side of the supporting rod (8-4), the tops of the third sliding seat (8-5) and the fourth sliding seat (8-6) are respectively in threaded sleeve connection with ejector rods (8-7) which are movably sleeved on the inner side of the fixed component (5), and a positioning plate (8-8) which is in sliding connection with the inner side of the fixed component (5) is fixedly installed.

4. The drive axle on-line multifunctional test bench according to claim 3, characterized in that: and a positioning bolt clamped and connected at the outer side of the bidirectional screw rod (8-3) is sleeved on the inner thread of one side of the third sliding seat (8-5).

5. The drive axle on-line multifunctional test bench according to claim 1, characterized in that:

the fixing component (5) comprises a first T-shaped sliding block (5-1) and a second T-shaped sliding block (5-2) which are connected to the inner side of the rack (1) in a sliding mode and located on two sides of the ejector rod (8-7), positioning seats (5-4) which are movably sleeved on the outer side of the ejector rod (8-7) and located on the outer side of the positioning plate (8-8) are fixedly installed inside the first T-shaped sliding block (5-1) and the second T-shaped sliding block (5-2) through fixing bolts (5-3), limiting rods (5-5) are movably sleeved inside the positioning seats (5-4), and the middle portions of the positioning seats (5-4) are connected with the positioning plate (8-8) in a sliding mode through limiting blocks (5-6) fixedly installed on the outer side of the positioning plate (8-8).

6. The drive axle on-line multifunctional test bench according to claim 5, characterized in that: a limiting groove matched with the limiting block (5-6) is formed in the positioning seat (5-4), a mounting hole matched with the limiting rod (5-5) is formed in the positioning seat (5-4), and positioning columns are arranged at the tops of the first T-shaped sliding block (5-1) and the second T-shaped sliding block (5-2).

7. The drive axle on-line multifunctional test bench according to claim 1, characterized in that: the second adjusting mechanism (9) comprises a first fixed seat (9-1), a second fixed seat (9-2), a third fixed seat (9-3) and a fourth fixed seat (9-4) which are fixedly arranged at the bottom of the fixing plate respectively, and a first worm wheel (9-5) and a second worm wheel (9-6) which are fixedly sleeved on the outer sides of the bottom ends of the first screw rod (6) and the second screw rod (7) respectively, wherein the first fixed seat (9-1) is rotatably connected with the second fixed seat (9-2) through a first worm (9-7) meshed with the outer edge of the first worm wheel, and the third fixed seat (9-3) is rotatably connected with the fourth fixed seat (9-4) through a second worm (9-8) meshed with the outer edge of the second worm wheel (9-6).

8. The drive axle on-line multifunctional test bench according to claim 7, characterized in that: the first worm (9-7) and the second worm (9-8) are fixedly connected through a limiting bolt, and a limiting boss matched with the second worm (9-8) is arranged on one side of the first worm (9-7).

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