CN115032000A

CN115032000A - Abrasion testing device and system for thrust wheel and caterpillar track

Info

Publication number: CN115032000A
Application number: CN202210589542.1A
Authority: CN
Inventors: 郭志远; 封小鹏; 盛华
Original assignee: Suote Transmission Equipment Co Ltd
Current assignee: Suote Transmission Equipment Co Ltd
Priority date: 2022-05-26
Filing date: 2022-05-26
Publication date: 2022-09-09

Abstract

The invention provides a wear testing device and a wear testing system for a thrust wheel and a caterpillar track. During testing, the vertical loading mechanism operates to apply positive pressure to the thrust wheel; and the first transverse loading mechanism applies a driving force to the first mounting assembly to drive the first mounting assembly to transversely move along the first direction. During testing, the friction contact surface of the thrust wheel and the caterpillar track is the same as the actual working condition, so that the abrasion condition of the thrust wheel and the caterpillar track in matching can be effectively simulated and tested, the user fault can be rapidly reproduced in the research and development stage, and the test problem can be modified; meanwhile, the testing device only comprises a rack, a first mounting assembly, a vertical loading mechanism and a first transverse loading mechanism, and is small in size and relatively simple and quick to manufacture; during testing, only the matching of the thrust wheel and the local crawler track is required to be tested, so that the testing is convenient, and the test period and the research and development period can be effectively shortened.

Description

Abrasion testing device and system for thrust wheel and caterpillar track

Technical Field

The invention relates to the technical field of performance testing of crawler structural components, in particular to a wear testing device and a wear testing system for a thrust wheel and a caterpillar track.

Background

The crawler-type traveling mechanism is widely applied to the field of engineering machinery due to the advantages of good traction and adhesion performance, strong adaptability to complex ground and the like. However, due to the complex working environment and the various stress postures of the crawler, the crawler is often worn and fatigued in the using process, and great potential safety hazards are caused to the operation of the crawler. In order to improve the service performance of the crawler structure, the prenatal simulation experiment of the crawler structure has important significance.

Track structure test bench among the prior art, including mounting bracket, drive arrangement, action wheel, from the driving wheel, drive arrangement sets up on the mounting bracket and links to each other with the action wheel, and during the experiment, the thrust wheel is installed on the mounting bracket to the tread of thrust wheel contacts with the action wheel and the wheel body from the driving wheel, starts drive arrangement, and the thrust wheel is at the action of action wheel, from the radial loading device of driving wheel, rotatory running-in. The experiment table with the structure can only test the abrasion and temperature rise conditions of the thrust wheel, and cannot test the abrasion conditions when the thrust wheel is matched with the caterpillar track; when the test bed is used for testing, the thrust wheel is in running-in with the driving wheel and the driven wheel on two sides in a rotating mode, and the friction contact surface of the thrust wheel is inconsistent with the actual working condition, so that the test result is influenced.

The existing comprehensive experiment table capable of realizing the matched wear test of the thrust wheel and the chain wheel comprises a test table, a belt wheel and other structures, and is used for testing the lower body structure of the whole crawler-type vehicle such as a driving device, a crawler, the thrust wheel, a tensioning device, a crawler frame caterpillar track, a guide wheel and the like during the test, namely simulating a real vehicle to test, and the test table is large in size and difficult to manufacture and test actually; meanwhile, the test assembly has many parts and huge manufacturing cost, and the test bed and the test assembly have long manufacturing period and long experimental period.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defects of huge cost, difficulty in realization and long manufacturing and test period caused by the large comprehensive test bed with the crawler structure in the prior art, so that the wear test device and the wear test system for the thrust wheel and the caterpillar track are provided.

In order to solve the above problems, the present invention provides a wear testing device for a thrust wheel and a caterpillar track, comprising a frame; the track chain track comprises a first mounting assembly and a second mounting assembly which are movably arranged on the rack, wherein a thrust wheel is suitable for being mounted and fixed on the first mounting assembly, and a track chain track is suitable for being correspondingly mounted on the second mounting assembly; one end of the vertical loading mechanism is fixedly connected with the rack, and the other end of the vertical loading mechanism is movably connected with the first mounting assembly; one end of the first transverse loading mechanism is fixedly connected with the other end of the rack and movably connected with the first mounting assembly.

Optionally, in the above wear test device for a supporting wheel and a caterpillar track, the first mounting assembly includes a mounting seat for mounting the supporting wheel, and a first mounting plate disposed on the mounting seat, one end of the vertical loading mechanism is connected to the other end of the rack and connected to the first mounting plate, and one end of the first transverse loading mechanism is connected to the other end of the rack and connected to the first mounting plate.

Optionally, in the wear testing device for the track roller and the caterpillar track, a second guiding mechanism for guiding the first mounting plate (201) to slide is arranged between the vertical loading mechanism and the first mounting plate.

Optionally, the wear testing device for the thrust wheel and the caterpillar track further comprises a second transverse loading mechanism, the first mounting assembly further comprises a second mounting plate arranged between the first mounting plate and the mounting seat, one end of the second transverse loading mechanism is connected to the rack, the other end of the second transverse loading mechanism is connected to the second mounting plate, and the second transverse loading mechanism is perpendicular to the loading direction of the first transverse loading mechanism.

Optionally, in the wear testing apparatus for a track roller and a caterpillar track, a third guiding mechanism for guiding the second mounting plate to slide is disposed between the first mounting plate and the second mounting plate.

Optionally, in the wear test device for the track roller and the caterpillar track, two mounting seats are provided, and the distance between the two mounting seats is adjustable.

Optionally, in the above wear testing apparatus for a thrust wheel and a caterpillar track, the vertical loading mechanism is connected to the first mounting assembly by an orientation mechanism, the orientation mechanism includes a first connecting plate, an orientation plate, a second connecting plate, and a plurality of orientation columns, the first connecting plate, the orientation plate, the second connecting plate, and the plurality of orientation columns are sequentially arranged, one end of each orientation column is fixed to the first connecting plate, the other end of each orientation column penetrates through the orientation plate and is fixed to the second connecting plate, and the orientation plate is fixed to the frame; the vertical loading mechanism is connected with the first connecting plate, and the first mounting assembly is connected with the second connecting plate.

Optionally, in the wear testing device for the track roller and the caterpillar track, the second mounting assembly includes a groove body and a third mounting plate disposed in the groove body; the groove body is rotatably arranged on the rack, and the crawler track is suitable for being arranged on the third mounting plate.

Optionally, the abrasion testing device for the thrust wheel and the caterpillar track further comprises an inclined loading mechanism, and one end of the inclined loading mechanism is connected with the rack, and the other end of the inclined loading mechanism is connected with the groove body.

The invention provides a test system which comprises a wear test device of the thrust wheel and the caterpillar track.

The invention has the following advantages:

1. according to the abrasion testing device for the thrust wheel and the caterpillar track, provided by the invention, during testing, the thrust wheel and the caterpillar track are firstly installed on the testing device, the first installation assembly is driven to vertically move through the vertical loading mechanism so as to enable the thrust wheel to be in contact with the caterpillar track, the vertical loading mechanism continuously operates to apply positive pressure to the thrust wheel, and the positive pressure applied to the thrust wheel under the actual working condition is simulated through the positive pressure; meanwhile, the first transverse loading mechanism applies driving force to the first mounting assembly to drive the first mounting assembly to transversely move along the first direction, so that relative sliding occurs between the thrust wheel and the track chain rail, friction between the thrust wheel and the track chain rail when the track runs is simulated, the thrust wheel directly contacts the track chain rail during testing, the friction contact surface between the thrust wheel and the track chain rail is the same as the actual working condition, the abrasion condition when the test thrust wheel and the track chain rail are matched can be effectively simulated, user faults can be rapidly reproduced in the research and development stage, and the test problems are modified; meanwhile, the testing device only comprises a rack, a first mounting assembly, a vertical loading mechanism and a first transverse loading mechanism, and is small in size and relatively simple and quick to manufacture; during testing, only the matching of the thrust wheel and the local crawler track is required to be tested, so that the testing is convenient, and the test period and the research and development period can be effectively shortened. Compared with a large comprehensive experiment table, the test cost can be effectively reduced.

2. The testing device further comprises a second transverse loading mechanism, and during testing, the second transverse loading mechanism applies lateral force to the thrust wheel at the same time so as to simulate the abrasion loss of the thrust wheel and the caterpillar track of the crawler track in the steering state of the test vehicle.

3. The orientation mechanism is matched with the first matching part to guide the first mounting assembly to vertically lift, so that the vertical loading mechanism is ensured to apply positive pressure to the thrust wheel, the force application deflection is prevented, and the accuracy of the test is ensured.

4. First installation component includes first mounting panel, the second mounting panel and locate two mount pads of second mounting panel bottom relatively, but first mounting panel and second mounting panel independent motion, cooperation vertical loading mechanism and second connecting plate, the three-dimensional direction's independent motion can finally be realized to the second mounting panel, the motion of three direction does not influence each other, can be when only applying the drive power of vertical normal pressure and first direction, the operating mode under the normal steady straight line running state of simulation test vehicle, and observe and measure the wearing and tearing condition of track and thrust wheel. And vertical positive pressure, driving force in the first direction and lateral pressure in the second direction can be applied at the same time, the working condition of the caterpillar track under the lateral force in the steering process of the vehicle is simulated, and the abrasion condition of the caterpillar track and the thrust wheel is observed and measured.

5. The test device further comprises a second mounting assembly and an inclination loading mechanism, and inclination moment is applied to the second mounting assembly through the inclination loading mechanism, so that the second mounting assembly drives the caterpillar track on the second mounting assembly to change the inclination angle in real time, and the abrasion conditions of the lower supporting wheel and the caterpillar track under the condition of inclination or unilateral operation of the test vehicle are simulated.

6. The second mounting assembly comprises a groove body and a third mounting plate arranged in the groove body; during the test, can put into material such as silt or muddy water in the cell body to the different operating modes of simulation track and thrust wheel make the experiment more close to actual conditions, obtain more accurate test result.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 shows a first angle schematic diagram of a wear testing device of a track roller and a caterpillar track provided in embodiment 1 of the present invention;

FIG. 2 is a second angle schematic diagram of a wear testing device for a track roller and a caterpillar track provided in embodiment 1 of the present invention;

FIG. 3 shows a partial enlarged view of portion A of FIG. 2;

FIG. 4 is a third angle schematic diagram of a wear testing device for a track roller and a caterpillar track provided in embodiment 1 of the present invention;

fig. 5 is a fourth angle diagram of a wear testing device for a track roller and a caterpillar track provided in embodiment 1 of the present invention;

fig. 6 is a schematic view showing an operating state of the wear testing device for the track roller and the caterpillar according to embodiment 1 of the present invention.

Description of reference numerals:

10. a frame; 20. a first mounting assembly; 201. a first mounting plate; 202. a second mounting plate; 2021. a kidney-shaped hole; 203. a mounting seat; 30. a vertical loading mechanism; 40. a first lateral loading mechanism; 50. a second lateral loading mechanism; 60. an orientation mechanism; 601. a first connecting plate; 602. a second connecting plate; 603. a directional column; 70. a first mating portion; 80. a second guide mechanism; 801. a first guide rail; 802. a first slider; 90. a third guide mechanism; 901. a second guide rail; 902. a second slider; 100. a second mounting assembly; 1001. a trough body; 1002. a third mounting plate; 110. a tilt loading mechanism; 120. rotating the support assembly; 1201. a base; 1202. a support shaft; 1203. a hinged seat; 130. a thrust wheel; 140. a track caterpillar.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

The embodiment provides a wear testing device for a thrust wheel and a caterpillar track, as shown in fig. 1, fig. 2, and fig. 4 to fig. 6, which includes a machine frame 10, a first mounting assembly 20, a second mounting assembly 100, a vertical loading mechanism 30, and a first transverse loading mechanism 40, wherein the first mounting assembly 20 and the second mounting assembly 100 are movably disposed on the machine frame 10; track roller 130 is adapted to be mounted to first mounting assembly 20, and track link 140 is adapted to be correspondingly mounted to second mounting assembly 100; one end of the vertical loading mechanism 30 is fixedly connected with the frame 10, the other end of the vertical loading mechanism is movably connected with the first mounting assembly 20, and the vertical loading mechanism 30 is used for driving the first mounting assembly 20 to vertically lift so as to enable the tread of the thrust wheel 130 to contact with the caterpillar track 140; the first lateral loading mechanism 40 has one end fixedly connected to the frame and the other end movably connected to the first mounting assembly 20, and the first lateral loading mechanism 40 is configured to drive the first mounting assembly 20 to move laterally in a first direction, so that the track roller 130 and the track rail 140 slide relative to each other.

According to the abrasion testing device for the thrust wheel and the caterpillar track with the structure, during testing, the thrust wheel 130 and the caterpillar track are firstly installed on the testing device, the first installation assembly 20 is driven to vertically move through the vertical loading mechanism 30 so that the thrust wheel 130 contacts the caterpillar track 140 of the caterpillar track, the vertical loading mechanism 30 continuously operates to apply positive pressure to the thrust wheel 130, and the positive pressure applied to the thrust wheel 130 under the actual working condition is simulated through the positive pressure; meanwhile, the first transverse loading mechanism 40 applies a driving force to the first mounting assembly 20 to drive the first mounting assembly to transversely move along a first direction, so that the thrust wheel 130 and the track chain rail 140 relatively slide to simulate friction between the thrust wheel 130 and the track chain rail 140 when the track runs, the thrust wheel 130 directly contacts the track chain rail 140 during testing, the friction contact surface between the thrust wheel 130 and the track chain rail is the same as the actual working condition, the wear condition during testing of the thrust wheel 130 and the track chain rail 140 in matching can be effectively simulated, user faults can be rapidly reproduced during the research and development stage, and the test problems are modified; meanwhile, the testing device only comprises the rack 10, the first mounting assembly 20, the vertical loading mechanism 30 and the first transverse loading mechanism 40, and is small in size and relatively simple and quick to manufacture; during testing, only the matching of the thrust wheel 130 and the local crawler track 140 is required to be tested, so that the testing is convenient, and the test period and the research and development period can be effectively shortened. Compared with a large comprehensive experiment table, the test cost can be effectively reduced.

Specifically, the vertical loading mechanism 30 is a first hydraulic ram to stably apply a sufficient positive pressure to the bogie wheel 130. The cylinder body of the first hydraulic cylinder is fixed on the frame 10, and the telescopic shaft of the first hydraulic cylinder is connected with the first mounting assembly 20. Alternatively, the first lateral loading mechanism 40 is a second hydraulic cylinder, the cylinder portion of which is fixed to the frame 10, and the telescopic shaft is connected to the first mounting assembly 20.

Referring to fig. 4, the testing apparatus further includes a second transverse loading mechanism 50, one end of the second transverse loading mechanism 50 is connected to the frame 10, and the other end is connected to the first mounting assembly 20, the second transverse loading mechanism 50 is perpendicular to the loading direction of the first transverse loading mechanism 40, and the second transverse loading mechanism 50 is configured to drive the first mounting assembly 20 to move transversely along a second direction, which is perpendicular to the first direction. Since the vehicle is subjected to a side load during steering, the second transverse loading mechanism 50 simultaneously applies a side force to the bogie wheel 130 during testing, so as to simulate the wear of the bogie wheel 130 and the track link 140 during testing of the steering state of the vehicle.

As best seen in fig. 6, one end of the vertical loading mechanism 30 is disposed on the top of the frame 10, that is, the body of the first hydraulic cylinder is fixed on the top of the frame 10, and the first hydraulic cylinder extends and contracts to drive the first mounting assembly 20 to drive the thrust wheel 130 to vertically lift, so that the thrust wheel 130 contacts the track chain 140 at the bottom of the frame 10, and at the same time, the thrust wheel 130 is conveniently pressed from top to bottom.

Referring to fig. 1 to 3, the testing apparatus further includes an orientation mechanism 60, two ends of the orientation mechanism 60 are respectively connected to the vertical loading mechanism 30 and the first mounting assembly 20, a first matching portion 70 is disposed on the rack 10, and the orientation mechanism 60 is matched with the first matching portion 70 to guide the first mounting assembly 20 to vertically lift, so as to ensure that the vertical loading mechanism 30 applies positive pressure to the thrust wheel 130, prevent the applied force from deviating, and ensure the accuracy of the test.

Specifically, referring to fig. 3, the orientation mechanism 60 includes a first connection plate 601, an orientation plate, a second connection plate 602, and a plurality of orientation posts 603, which are sequentially disposed, the plurality of orientation posts 603 being disposed between the first connection plate 601 and the second connection plate 602; the first connecting plate 601 is connected to one end of the vertical loading mechanism 30, that is, the first connecting plate 601 is connected to a piston rod of a first hydraulic cylinder, and the first mounting assembly 20 is slidably connected to the second connecting plate 602 to drive the thrust wheel 130 to move in the first direction under the driving of a second hydraulic cylinder; the first engaging portion 70 is an orientation plate fixedly disposed on the frame 10, and a plurality of orientation posts 603 slidably penetrate through the orientation plate. When the telescopic shaft of the first hydraulic cylinder is extended, the plurality of orientation posts 603 slide in the orientation plate to guide the first mounting assembly 20 to move vertically, thereby ensuring the application of positive pressure and uniformity of force to the thrust wheel 130.

Both ends of each orientation column 603 are fixedly arranged on the first connecting plate 601 and the second connecting plate 602 respectively, for example, the orientation column 603 is welded and fixed on the first connecting plate 601 and the second connecting plate 602. Optionally, the orientation posts 603 are cylindrical, four orientation posts 603 are provided, the first connection plate 601, the second connection plate 602 and the orientation plates are rectangular plate-shaped, and the four orientation posts 603 are uniformly spaced at four corners of the first connection plate 601, so as to improve the stability of guiding and the uniformity of force application. Referring to fig. 1 to 3, the top of the orientation plate is fixed on a support frame, and the top of the support frame is fixed on a frame 10.

Referring to fig. 3, the first mounting assembly 20 includes a first mounting plate 201, a second mounting plate 202, and two mounting seats 203 oppositely disposed at the bottom of the second mounting plate 202, wherein the first mounting plate 201 is slidably connected to a second connecting plate 602; one end of the first transverse loading mechanism 40 is connected with the first mounting plate 201, and the other end is connected with the rack; the second mounting plate 202 is slidably connected to the bottom of the first mounting plate 201; one end of the second transverse loading mechanism 50 is connected with the second mounting plate 202, and the other end is connected with the rack; the thrust wheel 130 is adapted to be mounted on the mount 203. The first lateral loading mechanism 40 drives the first mounting plate 201 to move in a first direction to drive the track roller 130 to move in the first direction, and the second lateral loading mechanism 50 applies a lateral force to the second mounting plate 202 in a second direction to press the rim side of the track roller 130 against the surface of the track rail 140 to apply the lateral force to the track roller 130. The first mounting plate 201 and the second mounting plate 202 can independently move, the vertical loading mechanism 30 and the second connecting plate 602 are matched, the second mounting plate 202 can finally realize independent movement in three-dimensional directions, the movement in the three directions is not influenced mutually, the working condition of the vehicle in a normal stable linear running state can be simulated and tested when only vertical positive pressure and driving force in the first direction are exerted, and the abrasion conditions of the track and the thrust wheel 130 are observed and measured. Vertical positive pressure, driving force in the first direction and lateral pressure in the second direction can be applied at the same time, the working condition of the caterpillar track under lateral force in the steering process of the vehicle is simulated, and the abrasion condition of the caterpillar track and the thrust wheel 130 is observed and measured.

The testing device further comprises a second guide mechanism 80 and a third guide mechanism 90, wherein the second guide mechanism 80 is arranged between the second connecting plate 602 and the first mounting plate 201 to guide the first mounting plate 201 to slide along the first direction; the third guiding mechanism 90 is disposed between the first mounting plate 201 and the second mounting plate 202 to guide the second mounting plate 202 to slide along the second direction, so that the thrust wheel 130 is driven by the second guiding mechanism 80 and the third guiding mechanism 90 to move smoothly.

For example, referring to fig. 3, the second guiding mechanism 80 includes two first guide rails 801 and two first sliding blocks 802, the two first guide rails 801 are arranged along the first direction and are fixed at the bottom of the second connecting plate 602 at intervals, one end of each of the two first sliding blocks 802 is fixed on the first mounting plate 201, and the other end of each of the two first sliding blocks 802 is slidably sleeved on the first sliding rail to guide the first mounting plate 201 to move along the first direction. The third guiding mechanism 90 includes two second guide rails 901 and two second sliders 902, the two second guide rails 901 extend along the second direction and are fixedly disposed at the bottom of the first mounting plate 201 at intervals, that is, the second guide rails 901 are perpendicular to the first guide rails 801, one end of each of the two second sliders 902 is fixed on the second mounting plate 202, and the other end is sleeved on the second guide rail 901 to guide the second mounting plate 202 to move along the second direction.

Referring to fig. 3, when the thrust wheel 130 is installed, its axial ends are fixed to the mounting seats 203 by bolts. The distance between the two mounting seats 203 is adjustable and arranged at the bottom of the second mounting plate 202, so that the distance between the two mounting seats 203 can be adjusted to adapt to the mounting of different types of thrust wheels 130 (i.e. thrust wheels 130 with different axial lengths). Specifically, two waist-shaped holes 2021 are formed in the second mounting plate 202 at the top of each mounting seat 203, the waist-shaped holes 2021 extend along the direction of the second rail 901, the orientation plate is fixed on the second mounting plate 202 by bolts, and the mounting distance between the mounting seats 203 on both sides of the second mounting plate 202 can be changed by the waist-shaped holes 2021.

Referring to fig. 3, the bottom of the mounting seat 203 is provided with a connecting seat, the connecting seat is fixed on the mounting seat 203 through bolts, and the thrust wheel 130 is fixed on the connecting seat through bolts so as to be fixed on the mounting seat 203. When the bolt of installation thrust wheel 130 and the bolt hole on the connecting seat were not matched, only need change the connecting seat, need not to change mount pad 203 and second mounting panel 202, the connecting seat is located first installation component 20 below, and it is convenient to change, can adapt to the installation and the wear test of different thrust wheels 130 convenient and fast.

Referring to fig. 1 and 2, the frame 10 includes a bottom plate, four supporting columns fixedly disposed on the bottom plate, i-beams fixed on two sides of the tops of the supporting columns, a fixing plate crossing the tops of the two i-beams, and a first side plate and a second side plate respectively fixedly disposed on the sides of the supporting columns. The cylinder body of the first hydraulic oil cylinder is fixed on the fixing plate, the cylinder body of the second hydraulic oil cylinder is fixed on the first side plate, and the cylinder body of the third hydraulic oil cylinder is fixed on the second side plate. During the test, the bottom plate of the frame 10 is fixed on a fixed base through bolts.

Referring to fig. 1, 5 and 6, the testing apparatus further includes a tilt loading mechanism 110, wherein the second mounting assembly 100 is rotatably disposed on the frame 10, and the track link 140 is adapted to be mounted on the second mounting assembly 100; the two ends of the tilt loading mechanism 110 are connected to the frame 10 and the second mounting assembly 100, respectively, to drive the second mounting assembly 100 to swing. In actual conditions, the vehicle can be in an inclined or unilateral operation condition sometimes, the caterpillar track can be inclined and worn at the moment, the inclined loading mechanism 110 applies an inclined moment to the second mounting assembly 100, so that the second mounting assembly 100 drives the caterpillar track thereon to change the inclined angle in real time, and the abrasion conditions of the lower supporting wheel 130 and the caterpillar track under the inclined or unilateral operation condition of the test vehicle are simulated. The inclined loading mechanism 110 can be matched with the vertical loading mechanism 30 to simulate and test the abrasion conditions of the thrust wheel 130 and the caterpillar track of the vehicle under the working conditions of static inclination or unilateral operation; the inclined loading mechanism 110 can also be matched with the vertical loading mechanism 30 and the first transverse loading mechanism 40 to simulate the abrasion conditions of the thrust wheel 130 and the caterpillar track under the inclined or unilateral operation working condition of the test vehicle during operation; the inclined loading mechanism 110 can also be matched with the vertical loading mechanism 30, the first transverse loading mechanism 40 and the second transverse loading mechanism 50 at the same time to simulate the abrasion conditions of the thrust wheel 130 and the caterpillar track under the complex working conditions of running, steering, matching inclination or unilateral operation and the like of the test vehicle. The test device can simulate the abrasion conditions of the thrust wheel 130 and the caterpillar track of the test vehicle under different working conditions.

The second mounting assembly 100 comprises a slot 1001 and a third mounting plate 1002 arranged in the slot 1001; the housing 1001 is rotatably mounted to the frame 10 and is coupled to the tilt loading mechanism 110, and the track link 140 is adapted to be mounted to the third mounting plate 1002. During testing, the track chain 140 is bolted to the third mounting plate 1002. During the test, can put into materials such as silt or muddy water in cell body 1001 to the different operating modes of simulation track and thrust wheel 130 make the experiment more close to the operating condition, obtain more accurate test result.

Referring to fig. 2, the top surface of the bottom plate of the frame 10 is provided with a rotary support assembly 120, and the rotary support assembly 120 includes a base 1201, a support shaft 1202 and a hinge base 1203. The base 1201 is fixed on the bottom plate of the frame 10, the hinge base 1203 is hinged on the base 1201 through the support shaft 1202, and the top of the hinge base 1203 is fixedly connected with the groove 1001. The two ends of the tilting loading mechanism 110 are respectively hinged to the bottom plate of the rack 10 and the trough body 1001, and the telescopic shaft of the tilting loading mechanism 110 stretches to drive the trough body 1001 and the hinging seat 1203 to rotate around the supporting shaft 1202 so as to adjust the tilting angle of the caterpillar track. Preferably, the base 1201 and the hinge seats 1203 are triangular in cross section, the number of the base 1201 is three, the number of the hinge seats 1203 is two, the three bases 1201 are spaced apart from each other on the bottom plate of the machine frame 10, the two hinge seats 1203 are reversely buckled in the gap between the adjacent bases 1201, and the support shaft 1202 sequentially penetrates through each base 1201 and each hinge seat 1203.

The second mounting plate 202 may be mounted with a displacement monitoring device, such as a laser displacement sensor, a pull wire type or a pull rod type displacement sensor, on the bottom surface thereof, for detecting the wear amount of the track roller 130 and the caterpillar track in real time during the test. After the test is finished, the thrust wheel 130 and the caterpillar track are disassembled, and the abrasion condition of the thrust wheel 130 and the caterpillar track is measured manually.

Alternatively, the second lateral loading mechanism 50 is a third hydraulic ram and the tilt loading mechanism 110 is a fourth hydraulic ram. The telescopic shaft of the first hydraulic oil cylinder is hinged on the first connecting plate 601 so as to release partial degree of freedom when the first hydraulic oil cylinder is vertically telescopic, avoid rigid connection with the first connecting plate 601 and prevent the first hydraulic oil cylinder from being broken when the first connecting plate 601 rocks or inclines. To achieve the same function, the telescopic rod of the second hydraulic cylinder is hinged on the first mounting plate 201, and the telescopic rod of the third hydraulic cylinder is hinged on the second mounting plate 202. The load sizes of the four hydraulic oil cylinders can be adaptively adjusted according to theoretical data or user loads.

As a first alternative embodiment of example 1, the second guide mechanism 80 and the third guide mechanism 90 may also be any other structure capable of performing a translational guide function. The interval can also be adjusted through slider and slide rail complex mode to two mount pads 203, and mount pad 203 is fixed on the slider, and the slide rail is fixed to be set up on second mounting panel 202, and two mount pads 203 interval adjustment are accomplished, and it can on second mounting panel 202 with the slider locking to rethread fasteners such as bolt.

As a second alternative embodiment of embodiment 1, the first mounting assembly 20 may also be provided with only the first mounting plate 201, and the driving ends of the first transverse loading mechanism 40 and the second transverse loading mechanism 50 are respectively connected to the first mounting plate 201 to drive it to drive the thrust wheel 130 to move transversely.

As a third alternative embodiment of the embodiment 1, the first lateral loading mechanism 40, the second lateral loading mechanism 50 and the tilt loading mechanism 110 may also be linear driving mechanisms such as electric cylinders.

Example 2

This embodiment provides a testing system, which includes the wear testing device for the track roller and the caterpillar track in embodiment 1.

When the structure test system is used for testing, the friction contact surface of the thrust wheel 130 and the caterpillar track is the same as the actual working condition, so that the abrasion condition when the thrust wheel 130 and the caterpillar track 140 are matched can be effectively simulated and tested, the user fault can be rapidly reproduced in the research and development stage, and the test problem can be modified; meanwhile, the testing device has small volume and is relatively simple and quick to manufacture; during testing, only the matching of the thrust wheel 130 and the local crawler track 140 is required to be tested, so that the testing is convenient, and the test period and the research and development period can be effectively shortened. Compared with a large comprehensive experiment table, the test cost can be effectively reduced.

According to the above description, the present invention has the following advantages:

1. the testing device simulates the abrasion conditions of the caterpillar track and the thrust wheel 130 of the vehicle under common and complex working conditions in a bench test mode, and effectively restores after-sales faults;

2. by combining the testing device with the corresponding user working condition load product abrasion standard, the testing device tests effective fewer test fields and user failure rates, and shortens the development process;

3. because the test field test period is long, the test device effectively replaces the test field test or reduces the test field test times through the standard test, and the test cost and the period are reduced.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications derived therefrom are intended to be within the scope of the invention.

Claims

1. A wear testing device for a thrust wheel and a caterpillar track is characterized by comprising:

a frame (10);

the crawler track assembly comprises a first mounting assembly (20) and a second mounting assembly (100) which are movably arranged on the frame (10), wherein a thrust wheel (130) is suitable for being mounted and fixed on the first mounting assembly (20), and a crawler track (140) is suitable for being correspondingly mounted on the second mounting assembly (10);

one end of the vertical loading mechanism (30) is fixedly connected with the rack (10), and the other end of the vertical loading mechanism (30) is movably connected with the first mounting assembly (20);

one end of the first transverse loading mechanism (40) is fixedly connected with the rack, and the other end of the first transverse loading mechanism (40) is movably connected with the first mounting component (20).

2. The apparatus for testing wear of a track roller and a caterpillar according to claim 1, wherein the first mounting assembly (20) comprises:

a mounting seat (203) for mounting the thrust wheel (130),

the mounting structure comprises a first mounting plate (201) arranged on a mounting seat (203), wherein one end of a vertical loading mechanism is connected with the other end of a rack and connected with the first mounting plate (201), one end of a first transverse loading mechanism (40) is connected with the other end of the rack (10) and connected with the first mounting plate (201).

3. The device for testing the wear of the track roller and the chain track according to claim 2, characterized in that a second guide mechanism (80) for guiding the first mounting plate (201) to slide is arranged between the vertical loading mechanism (30) and the first mounting plate (201).

4. The apparatus for testing wear of a track roller and a caterpillar according to claim 2, further comprising a second lateral loading mechanism (50), wherein the first mounting assembly (20) further comprises a second mounting plate (202) disposed between the first mounting plate (201) and the mounting seat (203), one end of the second lateral loading mechanism (50) is connected to the frame (10), the other end of the second lateral loading mechanism is connected to the second mounting plate (202), and the loading direction of the second lateral loading mechanism (50) is perpendicular to that of the first lateral loading mechanism (40).

5. The device for testing the wear of the track roller and the chain track according to claim 4, characterized in that a third guide mechanism (90) for guiding the second mounting plate (202) to slide is arranged between the first mounting plate (201) and the second mounting plate (202).

6. The device for testing the abrasion between the thrust wheel and the caterpillar track according to claim 2, wherein the number of the mounting seats (203) is two, and the distance between the two mounting seats (203) is adjustable.

7. The device for testing the wear of the thrust wheel and the caterpillar according to any one of claims 1 to 6, wherein the vertical loading mechanism is connected with the first mounting assembly (20) through an orientation mechanism (60), the orientation mechanism (60) comprises a first connecting plate (601), an orientation plate and a second connecting plate (602) which are sequentially arranged, and a plurality of orientation columns (603), one end of each orientation column (603) is fixed on the first connecting plate (601), the other end of each orientation column penetrates through the orientation plate and is fixed on the second connecting plate (602), and the orientation plate is fixed on the machine frame (10); the vertical loading mechanism (30) is connected with the first connecting plate (601), and the first mounting assembly (20) is connected with the second connecting plate (602).

8. The apparatus for testing wear of a track roller and a track chain as claimed in claim 1, wherein the second mounting assembly (100) comprises a slot (1001) and a third mounting plate (1002) disposed in the slot (1001); the trough body (1001) is rotatably arranged on the rack (10), and the crawler track (140) is suitable for being arranged on the third mounting plate (1002).

9. The device for testing the wear of the track roller and the caterpillar according to claim 8, further comprising a tilt loading mechanism (110), wherein one end of the tilt loading mechanism (110) is connected to the frame (10) and the other end is connected to the slot (1001).

10. A test system comprising a wear test apparatus of a track roller and a caterpillar according to any one of claims 1 to 9.