CN116223029A - Commercial vehicle drive axle transmission error testing system based on drive axle test bench - Google Patents
Commercial vehicle drive axle transmission error testing system based on drive axle test bench Download PDFInfo
- Publication number
- CN116223029A CN116223029A CN202310251781.0A CN202310251781A CN116223029A CN 116223029 A CN116223029 A CN 116223029A CN 202310251781 A CN202310251781 A CN 202310251781A CN 116223029 A CN116223029 A CN 116223029A
- Authority
- CN
- China
- Prior art keywords
- drive axle
- tool
- shaft
- bridge
- encoder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/021—Gearings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to a commercial vehicle drive axle transmission error testing system based on a drive axle testing bench, which comprises a tool base, a driving motor, a tested bridge, an input end tool, a wheel edge tool, a middle drive axle front end cover, an extension shaft tool and an angle encoder, wherein the tool base is connected with the drive motor; the tested bridge is a middle driving bridge sample bridge provided with an inter-wheel differential lock device and an inter-axle differential lock device, an input end tool is arranged at the input end of the tested bridge, a wheel edge tool is arranged at the hub output end of the tested bridge, a middle driving bridge front end cover and a middle driving bridge pinion shaft are matched with a test tool design to carry out corresponding secondary processing, the middle driving bridge sample bridge is replaced and arranged on the tested bridge, and an extension shaft tool is arranged on a middle driving bridge front cover. The system can overcome the influence of the shaft shape of the tool and the inner diameter of the encoder under the situation of using the integrated angle encoder, and realizes the adjustment of the mounting height of the tool, the working condition range of the torque of the output shaft tool without bearing the torque and increasing the torque of the input shaft, and the separate test of the single-pair gear transmission errors of the centering drive axle assembly.
Description
Technical Field
The invention belongs to the technical field of analysis and measurement control, and particularly relates to a commercial vehicle drive axle transmission error testing system based on a drive axle testing bench, which is used for testing transmission errors of gear pairs in a drive axle assembly.
Background
At present, a grating type corner encoder is generally adopted for transmission error test of a drive axle, and can be classified into an integrated corner encoder and a split type corner encoder according to the diameter and the installation form of the grating type corner encoder. The inner diameter of the split type corner encoder is generally more than 180mm, the grating and the reading head are mutually independent and are easy to arrange, but the split type corner encoder is high in price, high in maintenance cost and difficult to popularize. More used in practical tests are integrated angle encoders, which are characterized in that the inner diameter is generally not more than 50mm, the grating and the reading head are designed as an integrated body as an inner ring and an outer ring, and meanwhile, the price is relatively low, and the popularization degree is high.
The structural characteristics of the integrated corner encoder determine that the integrated corner encoder has a plurality of limitations when in use, and because of the limitation of the inner diameter of the integrated corner encoder, the integrated corner encoder can be connected into a transmission system to be tested only by connecting a section of tool shaft in series, thereby providing higher requirements for the whole test system. Firstly, the tool shaft needs to be well supported and fixed so as to avoid bearing excessive bending moment; secondly, the diameter of the tool shaft is limited by the inner diameter of the encoder, and the capacity of bearing torque is limited. The torque transmitted by the drive axle of the commercial vehicle is generally larger, and the input torque is amplified by the bevel gear of the main speed reducer, so that the torque which is multiple times of the torque of the input end is generated on the wheel edge of the drive axle, and the working condition range which can be tested by a transmission error test is limited; finally, for a drive axle assembly comprising a plurality of pairs of gears, such as a cylindrical gear pair and a bevel gear pair in a middle drive axle, the transmission error of a single pair of gears cannot be tested because a tooling shaft cannot be connected in series inside the axle assembly. Based on the above, there is a strong need to develop a commercial vehicle drive axle transmission error testing system based on a drive axle testing rack, so as to effectively solve the above problems.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a commercial vehicle drive axle transmission error testing system based on a drive axle testing rack, which can realize adjustable tool support, overcome the wheel side tool with the bearing capacity of a tool shaft and measure the transmission error of a single pair of gears in a centering drive axle assembly.
The invention aims at realizing the following technical scheme:
a commercial vehicle drive axle transmission error testing system based on a drive axle testing bench comprises a tool base 1, a drive motor, a tested sample axle 5, an input end tool 8, a wheel edge tool 12, a middle drive axle front end cover 14, an extension shaft tool 16 and 3 angle encoders 20;
the driving motor comprises an input motor 2 connected with the input end of the driving axle, and a load motor I3 and a load motor II4 which are positioned at the wheel edges of the left side and the right side of the driving axle;
the tested bridge 5 is a middle drive bridge sample bridge provided with an inter-wheel differential lock device 6 and an inter-axle differential lock device 7; the input end tool 8 consists of an encoder mounting shaft 9, a transmission shaft side flange 10 and a driving axle side flange 11, is mounted at the input end of the tested sample bridge 5 and is supported by the tool base 1; the wheel edge tool 12 consists of an encoder mounting shaft 9 and a wheel edge connecting flange 13, is mounted at the hub output end of the tested sample bridge 5 and is supported by the tool base 1;
the front end cover 14 of the middle drive axle and the pinion shaft 15 of the middle drive axle are matched with the design of a test fixture to perform corresponding secondary processing and are replaced in the tested sample axle 5; the extension shaft tool 16 consists of an extension dummy shaft 17, a diameter extension dummy shaft 18 and an encoder support 19, and is arranged on the front cover 14 of the middle drive axle; the 3 angle encoders 20 are respectively mounted on the encoder mounting shafts 9 in the input end tooling 8 and the wheel side tooling 12 and the diameter expansion dummy shaft 18 in the extension shaft tooling 16.
Further, the whole tool base 1 is of a casting structure, the bottom of the tool base is connected with the horizon iron through foundation bolts, and the top of the tool base is connected with the tool mounting plate through bolts.
Further, the tool mounting plate is connected with the tool base 1 through a slotted hole, an encoder bracket and a bearing seat are arranged on the tool mounting plate, and the outer ring of the angle encoder 20 and the encoder mounting shaft 9 are respectively connected.
Further, load motor II4 inserts test system, with differential lock homonymy motor i.e. load motor I3 and wheel limit frock are connected, through setting up the difference in the test process and turn round, load motor II4 can load total moment of torsion, and input motor 2 is used for controlling the moment of torsion, and load motor II4 is used for controlling the rotational speed.
Further, the tested bridge 5 is a middle driving bridge with a through shaft, and the inter-wheel differential lock device 6 and the inter-shaft differential lock device 7 of the tested bridge 5 are locked at the same time during testing.
Further, the input end tooling 8 is connected in series between the rack input end transmission shaft and the drive axle input flange through a transition flange comprising a transmission shaft side flange 10 and a drive axle side flange 11.
Further, the wheel edge tool 12 is located on the tested bridge 5 and is provided with a wheel edge on one side of the differential lock between wheels, the wheel edge tool is connected with a half shaft flange of the driving axle through a wheel edge connecting flange 13, and the wheel edge connecting flange 13 is located by using a straight opening with the same outer diameter size as the half shaft flange.
Further, the front end cover 14 of the middle drive axle drills a dummy shaft hole at the shaft end position of the pinion shaft for accommodating the extension dummy shaft 17 while processing a screw hole for installing the encoder support 19; the intermediate drive axle pinion shaft 15 is provided with an inner spline hole on the shaft end surface near the intermediate drive axle front end cover 14, and is connected with an extension dummy shaft 17.
Further, one end of the encoder support 19 is mounted on the front end cover 14 of the middle drive axle through a bolt, the other end of the encoder support is provided with an arc-shaped long round hole for fixing the outer ring of the angle encoder 20, an inner hole is processed on the encoder support 19 for accommodating the extension dummy shaft 17, and sealing is carried out between the inner hole and the extension dummy shaft 17 and between the contact surfaces of the inner hole and the front end cover 14 of the middle drive axle.
Further, the extension dummy shaft 17 is supported by a needle bearing in an inner hole of the encoder support 19, and has an external spline machined at one end, and is connected to the intermediate drive axle pinion shaft 15.
Further, the diameter-expanding dummy shaft 18 is connected to the extending dummy shaft 17 for mounting and fixing an inner ring of the angle encoder 20.
Compared with the prior art, the invention has the beneficial effects that:
the drive axle transmission error testing system can overcome the influence of the shaft shape of the tool and the inner diameter of the encoder under the condition of an integrated angle encoder with lower use cost, realize the adjustment of the installation height of the tool, ensure that the output shaft tool does not bear torque, enlarge the torque working condition range of the input shaft and respectively test the transmission errors of a single pair of gears of the centering drive axle assembly.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a general layout of the present test system;
FIG. 2 is a simplified assembly and installation diagram of an input tooling;
FIG. 3 is a simplified assembly and installation diagram of an output tooling;
fig. 4 is a simplified assembly and installation diagram of an extension shaft tooling.
In the figure, 1, a tooling base 2, an input motor 3, a load motor I4, a load motor II 5, a sample bridge 6, an inter-wheel differential lock device 7, an inter-axle differential lock device 8, an input end tooling 9, an encoder mounting shaft 10, a transmission shaft side flange 11, a drive axle side flange 12, a wheel side tooling 13, a wheel side connecting flange 14, a middle drive axle front end cover 15, a middle drive axle pinion shaft 16, an extension shaft tooling 17, an extension dummy shaft 18, a diameter extension dummy shaft 19, an encoder support 20 and an angle encoder.
Detailed Description
The invention is further illustrated by the following examples:
the invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the commercial vehicle drive axle transmission error testing system based on the drive axle testing bench comprises a tool base 1, a drive motor matched with the drive axle testing bench, a tested sample bridge 5, an input end tool 8, a wheel side tool 12, a middle drive axle front end cover 14, an extension shaft tool 16 and an angle encoder 20.
The whole cast structure that is of frock base 1, bottom accessible rag bolt is connected with the horizon iron, and the top is connected with the frock mounting panel through the bolt. The bolt hole that opens on the frock base 1 is the slotted hole, can screw up the position through adjusting bolt and realize the regulation to frock mounting height. The tool mounting plate is fixedly provided with an encoder bracket and a bearing seat through bolt connection, is respectively connected with the outer ring of the angle encoder 20 and the encoder mounting shaft 9, and is connected with the tool.
The driving motor consists of an input motor 2, a load motor I3 and a load motor II 4. The input motor 2 is connected with the input end of the drive axle, the load motor I3 and the load motor II4 are respectively positioned at the left side and the right side of the drive axle and are matched with the test bed, the load motor II4 which is the dynamometer motor on the opposite side of the differential lock is connected with the test system, and the load motor I3 which is the motor on the same side of the differential lock is not connected with the wheel and the wheel tool and does not play a role in the test process. In the test process, the torque of the two load motors is adjusted through a control algorithm carried by the test bench, so that the total output torque of the load motor II4 is realized. For the application of the load, the torque is quantitatively controlled at the input motor 2, the rotation speed is quantitatively controlled at the output motor II4, and the rest parameters can be calculated by a control algorithm carried by the rack.
The tested bridge 5 is a middle drive bridge with an inter-wheel differential lock device 6 and an inter-axle differential lock device 7, and in the testing process, a threaded ejector rod or an air pressure control valve is used for locking the inter-wheel differential lock device 6 and the inter-axle differential lock device 7.
As shown in fig. 2, the input end fixture 8 is composed of an encoder mounting shaft 9, a transmission shaft side flange 10 and a drive axle side flange 11, is mounted on the input end of the tested sample bridge 5, and is supported by the fixture base 1. The input end tool 8 is connected with a rack input end transmission shaft and a drive axle input flange through a transmission shaft side flange 10 and a drive axle side flange 11.
As shown in fig. 3, the hub tooling 12 is composed of an encoder mounting shaft 9 and a hub connecting flange 13, is mounted at the hub output end of the tested sample bridge 5, and is supported by the tooling base 1. The wheel edge tool 12 is arranged on one side of the tested bridge 5, provided with an inter-wheel differential lock, and is connected with a half shaft flange of a driving axle through a wheel edge connecting flange 13, and the wheel edge connecting flange 13 is positioned by using a straight opening with the same outer diameter size as the half shaft flange.
As shown in fig. 4, the intermediate drive axle front end cap 14 is provided with a dummy shaft hole bored at the end of the pinion shaft to accommodate the extension dummy shaft 17, and a screw hole is formed to mount the encoder support 19. The intermediate drive axle pinion shaft 15 is provided with an inner spline hole on the shaft end surface near the intermediate drive axle front end cover 14, and is connected with an extension dummy shaft 17.
The extension shaft tooling 16 consists of an extension dummy shaft 17, a diameter extension dummy shaft 18 and an encoder support 19, and is arranged on the front cover 14 of the middle drive axle. Specifically, one end of the encoder support 19 is mounted on the front end cover 14 of the middle drive axle through bolts, and the other end of the encoder support is provided with an arc-shaped oblong hole to fix the outer ring of the angle encoder 20. The encoder support 19 is machined with an internal bore to accommodate the extended dummy shaft 17, and seals are made between the internal bore and the extended dummy shaft 17 and between the interface with the intermediate drive axle front end cap 14. The extension dummy shaft 17 is supported on an inner hole of the encoder support 19 through a needle bearing, and one end of the extension dummy shaft is provided with an external spline and is connected with the intermediate drive axle pinion shaft 15. The diameter-expanded dummy shaft 18 is connected to the elongated dummy shaft 17 for mounting and fixing an inner ring of the angle encoder 20.
The number of the angle encoders 20 is 3, and the angle encoders are respectively arranged on the encoder mounting shafts 9 in the input end tool 8 and the wheel side tool 12 and the diameter expansion dummy shaft 18 in the extension shaft tool 16.
Example 1
A commercial vehicle drive axle transmission error testing system based on a drive axle test bench comprises a tool base 1, a drive motor matched with the test bench, a tested sample bridge 5, an input end tool 8, a wheel side tool 12, a middle drive axle front end cover 14, an extension shaft tool 16 and an angle encoder 20.
The tooling base 1 is of a cast iron structure, the bottom of the tooling base is provided with an anchor bolt groove, and the tooling base is fixed on a T-shaped groove of the ground flat iron by using anchor bolts; the top is the frock mounting panel through bolted connection, opens on the frock mounting panel has the slotted hole, can realize high regulation through changing the bolt position of screwing up. The encoder bracket and the bearing seat are fixedly connected to the tool mounting plate through bolts, and are respectively connected with the outer ring of the angle encoder 20 and the encoder mounting shaft 9.
The driving motor consists of an input motor 2, a load motor I3 and a load motor II 4. The input motor 2 is connected with the input end of the drive axle, and the load motor I3 and the load motor II4 are respectively positioned at the left side wheel edge and the right side wheel edge of the drive axle and are matched with the test bed. Only the dynamometer motor at the opposite side of the differential lock, namely the load motor II4, is connected to the test system, and the motor at the same side of the differential lock, namely the load motor I3, is not connected with the wheel edge and the wheel edge tool. And in the test process, through setting a differential torque, the total torque loaded by the load motor II4 is realized. During the test, the torque is controlled by the input motor 2 and the rotational speed is controlled by the load motor i 3 and the load motor ii 4.
The test-bed bridge 5 is a center drive axle with a through shaft, and the inter-wheel differential lock device 6 and the inter-axle differential lock device 7 of the test-bed bridge 5 should be locked simultaneously when testing.
The input end tool 8 is connected in series between the input end transmission shaft of the frame and the input flange of the drive axle through a transition flange comprising a transmission shaft side flange 10 and a drive axle side flange 11, wherein the transition flange is connected with end face teeth.
The wheel edge tool 12 is positioned on the tested axle 5 and is provided with a wheel edge on one side of the differential lock between wheels, and is connected with a half axle flange of the driving axle through a wheel edge connecting flange 13. The hub connection flange 13 achieves centering of the mounting through a straight opening of the same outer diameter as the axle shaft flange.
The intermediate drive axle front end cap 14 is bored with a dummy shaft hole at a corresponding position corresponding to the intermediate drive axle pinion shaft 15 for accommodating the extension dummy shaft 17 while a screw hole is machined to mount the encoder support 19.
The intermediate drive axle pinion shaft 15 is provided with an inner spline hole on the shaft end surface near the intermediate drive axle front end cover 14, and is connected with an extension dummy shaft 17. The spline connection between the intermediate drive axle pinion shaft 15 and the extension dummy shaft 17 is secured with a lock nut.
The extension shaft tooling 16 consists of an extension dummy shaft 17, a diameter extension dummy shaft 18 and an encoder support 19.
One end of the encoder support 19 is mounted on the front end cover 14 of the middle drive axle through bolts, and the other end of the encoder support is provided with an arc-shaped oblong hole for fixing the outer ring of the angle encoder 20. An inner bore is machined to accommodate the elongated dummy shaft 17, a rubber seal is used to seal between the inner bore and the dummy shaft, and a sealant is used to seal between the encoder support and the interface of the front end cap of the center drive axle.
The extension dummy shaft 17 is supported in an inner hole of the encoder support 19 through a needle bearing, and an external spline is machined at one inward end and is connected with the intermediate drive axle pinion shaft 15; one end of the nut is provided with threads, and the nut is locked by original installation
The diameter expansion dummy shaft 18 functions close to the encoder mounting shaft 9 and is connected with the extension dummy shaft 17 through a washer and a lock nut for mounting and fixing the inner ring of the angle encoder 20.
According to the attached drawings, the invention relates to a commercial vehicle drive axle transmission error testing system based on a drive axle testing rack, which comprises the following specific use flows: firstly, installing and arranging an input end tool, a wheel edge tool and a tool base, and correctly connecting the tool with a dynamometer motor. And starting the test bench, and controlling and inputting the torque and the rotating speed of the tested sample bridge through the dynamometer motor. Meanwhile, the corner information acquired by the angle encoders in the three tools is recorded, and subsequent processing is carried out to obtain transmission error data of the single pair of gears.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (10)
1. Commercial vehicle transaxle transmission error test system based on transaxle test bench, its characterized in that: the device comprises a tool base (1), a driving motor, a tested sample bridge (5), an input end tool (8), a wheel edge tool (12), a middle driving axle front end cover (14), an extension shaft tool (16) and 3 angle encoders (20);
the driving motor comprises an input motor (2) connected with the input end of the driving axle, and a load motor I (3) and a load motor II (4) which are positioned at the wheel edges of the left side and the right side of the driving axle;
the tested bridge (5) is a middle drive bridge sample bridge provided with an inter-wheel differential lock device (6) and an inter-axle differential lock device (7); the input end tool (8) consists of an encoder mounting shaft (9), a transmission shaft side flange (10) and a driving axle side flange (11), is mounted at the input end of the tested sample bridge (5) and is supported by the tool base (1); the wheel edge tool (12) consists of an encoder mounting shaft (9) and a wheel edge connecting flange (13), is mounted at the output end of a hub of the tested sample bridge (5) and is supported by the tool base (1);
the front end cover (14) of the middle drive axle and the pinion shaft (15) of the middle drive axle are matched with the test tool design to perform corresponding secondary processing and are replaced in the tested sample axle (5); the extension shaft tool (16) consists of an extension dummy shaft (17), a diameter extension dummy shaft (18) and an encoder support (19) and is arranged on a front cover (14) of the middle drive axle; the 3 angle encoders (20) are respectively arranged on the encoder installation shafts (9) in the input end tool (8) and the wheel edge tool (12) and the diameter expansion dummy shaft (18) in the extension shaft tool (16).
2. The drive axle transmission error testing system for a commercial vehicle based on a drive axle testing bench according to claim 1, wherein: the whole tool base (1) is of a casting structure, the bottom of the tool base can be connected with the horizon iron through foundation bolts, and the top of the tool base is connected with the tool mounting plate through bolts; the tool mounting plate is connected with the tool base (1) through a slotted hole, an encoder bracket and a bearing seat are arranged on the tool mounting plate, and the outer ring of the angle encoder (20) and the encoder mounting shaft (9) are respectively connected.
3. The drive axle transmission error testing system for a commercial vehicle based on a drive axle testing bench according to claim 1, wherein: the load motor II (4) is connected into the test system, the load motor I (3) which is a motor on the same side as the differential lock is not connected with the wheel rim and the wheel rim tool, no effect is exerted in the test process, the load motor II (4) can load all torque by setting differential torque in the test process, the input motor (2) is used for controlling torque, and the load motor II (4) is used for controlling rotating speed.
4. The drive axle transmission error testing system for a commercial vehicle based on a drive axle testing bench according to claim 1, wherein: the tested bridge (5) is a middle drive bridge with a through shaft, and in the testing process, a threaded ejector rod or an air pressure control valve is used for locking the inter-wheel differential lock device (6) and the inter-shaft differential lock device (7).
5. The drive axle transmission error testing system for a commercial vehicle based on a drive axle testing bench according to claim 1, wherein: the input end tool (8) is connected in series between the rack input end transmission shaft and the drive axle input flange through a transmission shaft side flange (10) and a drive axle side flange (11).
6. The drive axle transmission error testing system for a commercial vehicle based on a drive axle testing bench according to claim 1, wherein: the wheel edge tool (12) is positioned on a tested sample bridge (5) and is provided with a wheel edge on one side of the differential lock between wheels, the wheel edge tool is connected with a half shaft flange of a driving axle through a wheel edge connecting flange (13), and the wheel edge connecting flange (13) is positioned by using a straight opening with the same outer diameter size as the half shaft flange.
7. The drive axle transmission error testing system for a commercial vehicle based on a drive axle testing bench according to claim 1, wherein: the front end cover (14) of the middle drive axle is provided with a dummy shaft hole at the shaft end position of the pinion shaft, and is used for accommodating the extension dummy shaft (17) and simultaneously is provided with a threaded hole for installing an encoder support (19); the intermediate drive axle pinion shaft (15) is provided with an inner spline hole on the shaft end surface near one side of the intermediate drive axle front end cover (14) and is connected with the extension dummy shaft (17).
8. The drive axle transmission error testing system for a commercial vehicle based on a drive axle testing bench according to claim 1, wherein: one end of the encoder support (19) is arranged on the front end cover (14) of the middle drive axle through a bolt, an arc-shaped long round hole is formed in the other end of the encoder support to fix the outer ring of the angle encoder (20), an inner hole is formed in the encoder support (19) to accommodate the extension dummy shaft (17), and sealing is carried out between the inner hole and the extension dummy shaft (17) and between the inner hole and the contact surface of the extension dummy shaft and the front end cover (14) of the middle drive axle.
9. The drive axle transmission error testing system for a commercial vehicle based on a drive axle testing bench according to claim 1, wherein: the extension dummy shaft (17) is supported on an inner hole of the encoder support (19) through a needle bearing, one end of the extension dummy shaft is provided with an external spline, and the extension dummy shaft is connected with the intermediate drive axle pinion shaft (15).
10. The drive axle transmission error testing system for a commercial vehicle based on a drive axle testing bench according to claim 1, wherein: the diameter expansion dummy shaft (18) is connected with the extension dummy shaft (17) and is used for installing and fixing the inner ring of the angle encoder (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310251781.0A CN116223029A (en) | 2023-03-15 | 2023-03-15 | Commercial vehicle drive axle transmission error testing system based on drive axle test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310251781.0A CN116223029A (en) | 2023-03-15 | 2023-03-15 | Commercial vehicle drive axle transmission error testing system based on drive axle test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116223029A true CN116223029A (en) | 2023-06-06 |
Family
ID=86584325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310251781.0A Pending CN116223029A (en) | 2023-03-15 | 2023-03-15 | Commercial vehicle drive axle transmission error testing system based on drive axle test bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116223029A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117969121A (en) * | 2024-04-02 | 2024-05-03 | 无锡市朗迪测控技术有限公司 | Driving axle testing device |
-
2023
- 2023-03-15 CN CN202310251781.0A patent/CN116223029A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117969121A (en) * | 2024-04-02 | 2024-05-03 | 无锡市朗迪测控技术有限公司 | Driving axle testing device |
| CN117969121B (en) * | 2024-04-02 | 2024-06-18 | 无锡市朗迪测控技术有限公司 | Driving axle testing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104111170B (en) | A kind of automobile hub bearing moment of friction testing stand | |
| CN211178991U (en) | Vehicle dynamometer system | |
| CN116223029A (en) | Commercial vehicle drive axle transmission error testing system based on drive axle test bench | |
| CN206832459U (en) | Power transmission shaft reverses the detection means in gap | |
| GB2450217A (en) | A differential drive pinion with dual pilot surfaces | |
| CN205300927U (en) | Area is from unloaded running -in test bench of positioning and clamping device's that feels relieved gear box | |
| CN102252840B (en) | Tester of fault diagnosis of rotating machinery with closed power | |
| CN208736386U (en) | A kind of car transmissions torsion gap measuring apparatus | |
| CN114646466A (en) | Rolling bearing test equipment with load and assembly double simulation | |
| CN112985659B (en) | Heavy-load, high-power and large-torque chassis dynamometer under multi-environment system | |
| US4182166A (en) | Dynamometer test stand | |
| CN210774731U (en) | Steering parameter tester installation fixing device | |
| CN205538211U (en) | Forerunner automobile machinery gearbox transmission error test bench | |
| CN104806733B (en) | A kind of Torque test structures and methods based on shaft strength | |
| WO2021082617A1 (en) | Six-dimensional force sensor calibration apparatus and calibration method | |
| CN109342051B (en) | Transmission clearance measuring method | |
| CN207197812U (en) | A kind of mechanical transmission contact (area) pattern testing stand | |
| CN105258621B (en) | A kind of bearing bracket stand angle bisection degree detection method | |
| CN102052994B (en) | Device for testing performance of built-in shaft type dynamic balancing instrument | |
| CN213209487U (en) | Radial fatigue testing machine for wheel | |
| CN113125166A (en) | Installation structure and installation method of rotating hub tension and compression sensor of chassis dynamometer | |
| CN113358261A (en) | Automobile steering force testing tool and testing method thereof | |
| CN105300707A (en) | Static torsion test device of wheel edge speed reducer | |
| CN204964173U (en) | Sub vehicle frame differential mechanism support fatigue test rack | |
| CN215178616U (en) | Rack test equipment for hub unit loading test |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |