CN210802890U

CN210802890U - Testing device

Info

Publication number: CN210802890U
Application number: CN201922234598.1U
Authority: CN
Inventors: 荣朝运; 魏杰; 汪伟
Original assignee: Shanghai Jingzhi Industry Co ltd
Current assignee: Shanghai Jingzhi Industry Co ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-06-19
Anticipated expiration: 2029-12-13

Abstract

The utility model belongs to the technical field of auto parts test, a testing arrangement is disclosed. The test device includes: the input mechanism and the output mechanism of the measuring bracket are respectively connected with the input mechanism and the output mechanism of the measuring bracket; the output mechanism penetrates through the other side of the measuring support and is connected to the output end of the workpiece, the workpiece can rotate relative to the measuring support under the driving of the input mechanism, and power is output to the output mechanism and used for workpiece fatigue detection; the loading mechanism can load the workpiece in the radial direction of the workpiece. The testing device respectively carries out fatigue testing on the workpiece according to different loading loads, thereby improving the precision and accuracy of measurement. Simultaneously, compare with prior art, in the measurement process, with gear direct mount on measuring the support, can directly perceivedly see the inside wearing and tearing condition of gear, be convenient for monitor and observation.

Description

Testing device

Technical Field

The utility model relates to an auto parts tests technical field, especially relates to a testing arrangement.

Background

The gearbox is an important part on a vehicle, and the speed changing and torque changing are generated through different gear combinations to change the transmission ratio, so that the effect of expanding the torque and the rotating speed of a driving wheel is achieved.

The existing gearbox gear test is that a gearbox shell is directly placed on a gearbox gear test device, the internal abrasion condition of a gearbox gear cannot be seen, and the measurement result of the stress fatigue of the gear is single because the load cannot be loaded along the radial direction of the gear, so that the measurement precision of the stress fatigue of the gear is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a testing arrangement can carry out the loading along the radial direction of work piece, has improved the measurement accuracy of work piece.

To achieve the purpose, the utility model adopts the following technical proposal:

a test apparatus, comprising:

the measuring bracket is used for bearing the workpiece;

the output end of the input mechanism penetrates through one side of the measuring bracket and is connected to the workpiece;

the output mechanism penetrates through the other side of the measuring support and is connected to the output end of the workpiece, the workpiece can rotate relative to the measuring support under the driving of the input mechanism, and power is output to the output mechanism for workpiece fatigue detection;

and the loading mechanism can load the workpiece along the radial direction of the workpiece.

Preferably, the measurement holder includes a substrate on which:

the first outer plate is provided with a first through hole for the input mechanism to penetrate through;

the second outer plate is provided with a second through hole for the output mechanism to penetrate through;

and the inner plate is positioned between the first outer plate and the second outer plate, and mounting holes for the penetration of workpieces are formed in the first outer plate, the second outer plate and the inner plate.

Preferably, the first outer plate, the second outer plate and the inner plate are arranged in parallel at intervals, and the first outer plate, the second outer plate and the inner plate are all vertically arranged on the substrate through a fixing seat.

Preferably, a bearing is installed in the installation hole, and the workpiece is arranged in the bearing in a penetrating mode.

Preferably, the first outer plate and the inner plate are connected to each other by a first connecting rod, and the second outer plate and the inner plate are connected to each other by a second connecting rod.

Preferably, the loading mechanism comprises a load driving source and a loading rod connected to an output end of the load driving source, a clamp is sleeved on the workpiece, and the load driving source drives the loading rod to move towards the direction close to the measuring support and abut against the clamp.

Preferably, the loading mechanism further includes:

the upright post is provided with a guide seat;

and the double guide rod assembly is arranged between the output end of the load driving source and the loading rod, penetrates through the guide seat and is in sliding fit with the guide seat.

Preferably, the loading mechanism further includes:

the bearing block is arranged on the measuring bracket;

and the linear bearing is arranged in the bearing seat, and the loading rod penetrates through the linear bearing and is in sliding fit with the linear bearing.

Preferably, the input mechanism includes an input holder and an input drive source provided on the input holder.

Preferably, the output mechanism comprises an output fixing seat and an output actuator arranged on the output fixing seat.

The utility model has the advantages that:

the utility model provides a testing arrangement, after the drive power transmission of input mechanism gives the work piece, be used for simulating spare part atress and fatigue condition in the gearbox gear train from output mechanism output, loading mechanism can carry out the loading load to the work piece along the radial direction of work piece, to the loading load of difference, carries out fatigue test to the work piece respectively to measuring precision and accuracy have been improved. Simultaneously, compare with prior art, in the measurement process, with gear direct mount on measuring the support, can directly perceivedly see the inside wearing and tearing condition of gear, be convenient for monitor and observation.

Drawings

FIG. 1 is a schematic structural diagram of the testing device of the present invention;

fig. 2 is a schematic structural view of the testing device of the present invention with the loading mechanism hidden;

FIG. 3 is a schematic structural diagram of a measuring stand in the testing device of the present invention;

fig. 4 is a schematic structural diagram of a loading mechanism in the testing device of the present invention.

In the figure:

1. a measuring support; 2. an input mechanism; 3. an output mechanism; 4. a loading mechanism; 500. a workpiece;

11. a substrate; 12. a first outer plate; 13. a second outer plate; 14. an inner plate; 15. mounting holes; 16. a first connecting rod; 17. a second connecting rod; 18. a fixed seat; 19. a bearing;

121. a first through hole; 131. a second through hole;

21. an input fixing seat; 22. an input drive source;

31. an output fixing seat; 32. an output actuator;

41. a loading rod; 42. clamping a hoop; 43. a column; 44. a guide seat; 45. a double guide rod assembly; 46. a bearing seat; 47. and a linear bearing.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

The embodiment provides a testing device, which is used for testing a transmission gear, and as shown in fig. 1, the testing device includes a measuring support 1, an input mechanism 2, an output mechanism 3, and a loading mechanism 4, where the measuring support 1 is used as a supporting structure for bearing a workpiece 500, and the workpiece 500 is specifically a transmission gear. The input mechanism 2 and the output mechanism 3 are respectively located on two sides of the measuring support 1, the loading mechanism 4 is located on any one of the other two sides of the measuring support 1, namely the input mechanism 2 and the output mechanism 3 are arranged along the axial direction of the workpiece 500, and the loading mechanism 4 is arranged along the radial direction of the workpiece 500, so that the input mechanism 2, the output mechanism 3 and the loading mechanism 4 surround the measuring support 1. The output end of the input mechanism 2 penetrates through one side of the measuring support 1 and is connected to the workpiece 500, the input mechanism 2 penetrates through the other side of the measuring support 1 and is connected to the output end of the workpiece 500, and under the driving of the input mechanism 2, the workpiece 500 can rotate relative to the measuring support 1 and outputs power to the output mechanism 3, so that the fatigue detection of the workpiece 500 is realized. The loading mechanism 4 can load the workpiece 500 in the radial direction of the workpiece 500, and the measurement result of the gear stress fatigue is more accurate for the stress fatigue test of the gap between the gear and the shaft and the gear shaft in the workpiece 500.

According to the testing device provided by the embodiment, after the driving force of the input mechanism 2 is transmitted to the workpiece 500, the output mechanism 3 is used for simulating the stress and fatigue conditions of parts in the gearbox gear set, the loading mechanism 4 can load the workpiece 500 along the radial direction of the workpiece 500, and the fatigue test can be respectively carried out on the workpiece 500 according to different loading loads, so that the measuring precision and accuracy are improved. Simultaneously, compare with prior art, in the measurement process, with gear direct mount on measuring support 1, can directly perceivedly see the inside wearing and tearing condition of gear, be convenient for monitor and observation.

As shown in fig. 2, the input mechanism 2 includes an input fixing base 21 and an input driving source 22 disposed on the input fixing base 21, the input fixing base 21 is used for bearing and fixing the input driving source 22, and the input driving source 22 is specifically a hydraulic rotary cylinder. Since the output end of the input drive source 22 is connected to the workpiece 500, the input drive source 22 can drive the workpiece 500 to rotate. Meanwhile, the output mechanism 3 includes an output fixing seat 31 and an output actuator 32 disposed on the output fixing seat 31, the output fixing seat 31 is used for bearing and fixing the output actuator 32, and the output actuator 32 is specifically a hydraulic rotary cylinder. An intermediate gear is meshed at the output end of the workpiece 500, a spline is circumferentially arranged at the input end of the output actuator 32, a spline groove for clamping the spline is circumferentially arranged on the inner wall of a central hole of the intermediate gear, and the input end of the output actuator 32 is connected to the intermediate gear through the spline, so that the output end of the workpiece 500 transmits power to the output actuator 32 through the intermediate gear, and the fatigue performance of the workpiece 500 is evaluated and tested according to the input value of the input driving source 22 and the output value of the output actuator 32.

As shown in fig. 2-3, the measuring bracket 1 includes a substrate 11, the substrate 11 serves as a measuring base to support and bear load, a first outer plate 12, a second outer plate 13 and an inner plate 14 are vertically disposed on the substrate 11, and are disposed in parallel at intervals, and the inner plate 14 is disposed between the first outer plate 12 and the second outer plate 13. In order to fixedly connect the base plate 11 to the first outer plate 12, the second outer plate 13 and the inner plate 14, all of them are vertically arranged on the base plate 11 through a fixing seat rod 18. In order to further enhance the stabilizing effect, the first outer plate 12 and the inner plate 14 are connected to each other by a plurality of first connecting rods 16, and the second outer plate 13 and the inner plate 14 are connected to each other by a plurality of second connecting rods 17, wherein the number of the first connecting rods 16 and the number of the second connecting rods 17 are four, and the specific number can be adjusted according to actual needs. The four corners of one side of the inner plate 14 are respectively penetrated through by the first connecting rods 16, and the four corners of the other side of the inner plate 14 are respectively penetrated through by the second connecting rods 17, so that the first outer plate 12, the second outer plate 13 and the inner plate 14 are connected to form a whole, and the structural stability of the measuring support 1 is improved.

Further, in order to facilitate the insertion of the input mechanism 2 and the output mechanism 3, the first outer plate 12 is provided with a first through hole 121 through which the input mechanism 2 is inserted, and the second outer plate 13 is provided with a second through hole 131 through which the output mechanism 3 is inserted. In order to enable the workpiece 500 to rotate relative to the measuring bracket, the first outer plate 12, the second outer plate 13 and the inner plate 14 are all provided with mounting holes 15 for the workpiece 500 to penetrate through. Each mounting hole 15 is internally provided with a bearing 19 (shown in fig. 2), and the workpiece 500 is arranged through the bearing 19, so that the workpiece 500 can rotate smoothly, and the fatigue performance of the workpiece 500 can be tested conveniently.

As shown in fig. 4, in order to realize that the loading mechanism 4 can apply a load in the radial direction of the workpiece 500, the loading mechanism 4 includes a load driving source (not shown) and a loading rod 41 connected to an output end of the load driving source, and the load driving source is specifically a servo hydraulic cylinder. In order to prevent the loading rod 41 from directly acting on the workpiece 500 to easily damage the workpiece 500, a clamp 42 is sleeved on the workpiece 500, and the loading rod 41 is driven by the loading drive source to move towards the direction close to the measuring bracket 1 and abut against the clamp 42 so as to load the workpiece 500 and drive the workpiece 500 to move, thereby realizing the gap between the gear and the gear shaft and the fatigue performance test of the gear shaft.

Further, in order to improve the accuracy of the load application, a double-guide-rod assembly 45 is disposed between the output end of the load driving source and the loading rod 41, the double-guide-rod assembly 45 specifically includes two guide rods disposed in parallel and at an interval, and two ends of each guide rod are respectively connected to the output end of the load driving source and the loading rod 41. Meanwhile, an upright column 43 is arranged between the load driving source and the measuring bracket 1, a guide seat 44 is correspondingly arranged on one side of the upright column 43 facing the guide rod, the guide rod penetrates through the guide seat 44, and through the sliding fit between the guide rod and the guide seat 44, when the stroke of the loading rod 41 is large, the guide effect is achieved, and the stability of the loading rod 41 in the moving process is enhanced.

In order to further improve the stability of the loading rod 41, a bearing seat 46 is further arranged between the second outer plate 13 and the inner plate 14, a linear bearing 47 is arranged in the shaft of the bearing 19, and the loading rod 41 is arranged through the linear bearing 47 and is in sliding fit with the linear bearing 47. The loading rod 41 can slide relative to the linear bearing 47, and the linear bearing 47 plays a role in guiding the loading rod 41, so that the stability and the accuracy of the loading rod 41 acting on the clamp 42 are improved.

The working process of the testing device provided by the embodiment is as follows:

the input driving source 22 can drive the workpiece 500 to rotate, and the output end of the workpiece 500 transmits power to the output actuator 32 through the intermediate gear, so that the fatigue performance of the workpiece 500 is evaluated and tested according to the input value of the input driving source 22 and the output value of the output actuator 32;

the load driving source drives the double-guide-rod assembly 45 and drives the loading rod 41 to move towards the direction close to the measuring bracket 1, so that the loading rod 41 is abutted against the clamp 42 to apply load to the workpiece 500 and drive the workpiece 500 to move, and the fatigue performance test of the gap between the gear and the shaft and the fatigue performance test of the gear shaft is realized.

In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are used in an orientation or positional relationship based on that shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied thereto. 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, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. A test apparatus, comprising:

a measuring carriage (1) for carrying a workpiece (500);

the output end of the input mechanism (2) penetrates through one side of the measuring support (1) and is connected to the workpiece (500);

the output mechanism (3) is arranged on the other side of the measuring support (1) in a penetrating mode and connected to the workpiece (500), and the workpiece (500) can rotate relative to the measuring support (1) and output power to the output mechanism (3) under the driving of the input mechanism (2);

a loading mechanism (4), wherein the loading mechanism (4) can load the workpiece (500) along the radial direction of the workpiece (500).

2. The testing device according to claim 1, characterized in that the measuring carriage (1) comprises a base plate (11), on which base plate (11) there are arranged:

a first outer plate (12) provided with a first through hole (121) for the input mechanism (2) to penetrate through;

the second outer plate (13) is provided with a second through hole (131) for the output mechanism (3) to penetrate through;

and the inner plate (14) is positioned between the first outer plate (12) and the second outer plate (13), and mounting holes (15) for the penetration of workpieces (500) are formed in the first outer plate (12), the second outer plate (13) and the inner plate (14).

3. The testing device according to claim 2, wherein the first outer plate (12), the second outer plate (13) and the inner plate (14) are arranged in parallel and spaced apart, and all three are vertically arranged on the base plate (11) by means of a fixed seat bar (18).

4. The testing device according to claim 2, characterized in that a bearing (19) is mounted in the mounting hole (15), and the workpiece (500) is arranged through the bearing (19).

5. A testing device according to claim 4, characterized in that the first outer plate (12) and the inner plate (14) are interconnected by a first connecting rod (16) and the second outer plate (13) and the inner plate (14) are interconnected by a second connecting rod (17).

6. The testing device according to claim 1, wherein the loading mechanism (4) comprises a load driving source and a loading rod (41) connected to an output end of the load driving source, a clamp (42) is sleeved on the workpiece (500), and the load driving source drives the loading rod (41) to move towards the direction close to the measuring bracket (1) and abut against the clamp (42).

7. The testing device according to claim 6, wherein the loading mechanism (4) further comprises:

the vertical column (43), the vertical column (43) is provided with a guide seat (44);

and the double-guide-rod assembly (45) is arranged between the output end of the load driving source and the loading rod (41), and the double-guide-rod assembly (45) penetrates through the guide seat (44) and is in sliding fit with the guide seat.

8. The testing device according to claim 7, wherein the loading mechanism (4) further comprises:

a bearing seat (46) arranged on the measuring bracket (1);

the linear bearing (47) is arranged in the bearing seat (46), and the loading rod (41) penetrates through the linear bearing (47) and is in sliding fit with the linear bearing.

9. The testing device according to claim 1, wherein the input mechanism (2) comprises an input holder (21) and an input drive source (22) disposed on the input holder (21).

10. The testing device according to claim 1, wherein the output mechanism (3) comprises an output holder (31) and an output actuator (32) arranged on the output holder (31).