Hydraulic excavator walking pressure building testing device

Abstract

The utility model relates to the technical field of engineering machinery hydraulic excavator walking pressure build-up performance testing, in particular to a hydraulic excavator walking pressure build-up testing device which comprises an excavator crawler belt, rotating wheels arranged at the two ends of the excavator crawler belt in a sleeved mode, first grooves formed in the surface of the excavator crawler belt at equal intervals and a bottom plate. Comprising a horizontal part and a bent part, the horizontal part and the bent part of the bottom plate are arranged in an L shape, the horizontal part of the bottom plate is fixedly connected with a steel plate laid in a workshop, a plurality of anti-skid blocks are transversely welded to the upper surface of the horizontal part of the bottom plate at intervals, and a locking block is arranged on the inner side of the upper end of the bent part of the bottom plate. According to the utility model, faults of a walking system of the excavator can be effectively prevented, fault reasons can be diagnosed preliminarily, the stability and safety of the operation of the excavator are improved, and the safety of the walking pressure building test of the hydraulic excavator is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of traveling and holding pressure performance testing of a hydraulic excavator of engineering machinery, in particular to a traveling and holding pressure testing device of a hydraulic excavator. Background Art

[0002] The test of hydraulic excavator's travel pressure holding can test whether the pressure of the excavator's travel system is normal when the hydraulic excavator is traveling and holding pressure, so as to ensure that the hydraulic pump, hydraulic motor, hydraulic cylinder and other components of the travel system can work normally; it can also diagnose the fault of the travel system: if the excavator's travel system fails, the cause of the fault can be preliminarily diagnosed through the travel pressure holding test, such as insufficient output pressure of the hydraulic pump, leakage of the hydraulic motor, etc.; it can also prevent the failure of the excavator's travel system: regular travel pressure holding tests can prevent the failure of the excavator's travel system and extend the service life of the travel system; it can also ensure the safe operation of the excavator: the travel system is an important part of the excavator. If the travel system fails, it may cause the excavator to lose control, thereby causing a safety accident.

[0003] At present, an iron rod is placed at the chain link of the hydraulic excavator's travel drive sprocket to jam the sprocket for a travel pressure test. However, there is a risk of the iron rod flying out due to loose jamming, which poses a safety hazard and also a risk of damaging the drive sprocket. Utility Model Content

[0004] In view of the above problems, the utility model provides a hydraulic excavator walking pressure holding test device, which can not only effectively prevent the failure of the excavator walking system, preliminarily diagnose the cause of the failure, improve the stability and safety of the excavator operation, but also improve the safety of the hydraulic excavator walking pressure holding test.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is: a hydraulic excavator walking pressure test device, including an excavator track, rotating wheels are provided at both ends of the excavator track, and first grooves are evenly spaced on the surface of the excavator track. It also includes a bottom plate, and the bottom plate includes a horizontal part and a curved part. The horizontal part and the curved part of the bottom plate are arranged in an "L" shape. The horizontal part of the bottom plate is fixedly connected to the steel plate laid in the workshop, and a plurality of anti-sliding blocks are welded on the upper surface of the horizontal part of the bottom plate at laterally intervals, and a locking block is provided on the inner side of the upper end of the curved part of the bottom plate.

[0006] As a further solution of the utility model: the width of the bottom plate is greater than the width of the excavator crawler track.

[0007] As a further solution of the utility model: the spacing between the anti-sliding blocks is a multiple of the spacing between the first grooves on the excavator crawler, and the cross-sectional dimensions of the anti-sliding blocks are the same as those of the first grooves on the excavator crawler.

[0008] As a further solution of the utility model: the locking block has the same cross-sectional size as the first groove on the excavator crawler.

[0009] As a further solution of the utility model: second grooves are provided on both sides of the bottom of the anti-sliding block and the locking block, and the second grooves are engaged with the adjusting block.

[0010] As a further solution of the utility model: the curved portion of the bottom plate is "C"-shaped, and the distance between the upper and lower openings of the curved portion of the bottom plate is twice the sum of the radius of the rotating wheel and the thickness of the crawler track.

[0011] As a further solution of the utility model: it also includes a reinforcing rib plate, which is vertically fixed on the outside of the curved part of the bottom plate, and the bottom end of the reinforcing rib plate is fixedly connected to the steel plate laid in the workshop.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The practical hydraulic excavator walking pressure holding test device is used to test and solve the safety problem during the debugging of walking pressure holding, which not only avoids the damage to the crawler of the excavator, but also ensures the safety of the staff.

[0014] 2. The hydraulic excavator travel pressure holding test device of the utility model also solves the problem that the backward travel pressure holding test cannot be tested. The backward travel pressure holding test makes the test of the excavator travel system more comprehensive.

[0015] 3. The hydraulic excavator walking pressure holding test device of the utility model can be applicable to various types of crawlers, has a wide range of applications, and can be used to test various types of machines.

[0016] 4. The hydraulic excavator walking pressure holding test device of the utility model greatly improves the efficiency of the walking pressure holding test, reduces the damage problem of the driving sprocket during the test, saves costs, and generates economic benefits.

[0017] 5. The hydraulic excavator travel pressure test device of the utility model can effectively detect whether the pressure of the excavator travel system is normal when the excavator travels and the pressure is held, provide convenience for the preliminary diagnosis of the fault of the travel system, effectively prevent the fault of the excavator travel system, extend the service life of the travel system, and ensure the safe operation of the excavator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of a hydraulic excavator travel pressure holding test device;

[0019] Figure 2 This is a schematic diagram of the anti-sliding block and the adjusting block of the hydraulic excavator walking pressure holding test device;

[0020] Figure 3 This is a schematic diagram of the locking block and the adjusting block of the hydraulic excavator walking pressure holding test device;

[0021] Figure 4 This is a schematic diagram of the pressure holding test for the hydraulic excavator moving forward;

[0022] Figure 5 This is a schematic diagram of the hydraulic excavator's backward walking pressure holding test;

[0023] In the figure: 1, bottom plate; 2, anti-sliding block; 3, locking block; 4, reinforcing rib plate; 5, excavator track; 6, first groove; 7, second groove; 8, adjustment block; 9, rotating wheel. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1

[0026] refer to Figures 1 to 4 , use this device to carry out the pressure holding test of hydraulic excavator forward movement.

[0027] A hydraulic excavator walking pressure test device comprises an excavator track 5, both ends of which are sleeved with rotating wheels 9, the surface of the excavator track 5 is provided with first grooves 6 at equal intervals, and also comprises a bottom plate 1, the bottom plate 1 comprises a horizontal part and a curved part, the horizontal part and the curved part of the bottom plate 1 are arranged in an "L" shape, the horizontal part of the bottom plate 1 is fixedly connected to the steel plate laid in the workshop to prevent the test device from tipping over and moving, a plurality of anti-sliding blocks 2 are welded at lateral intervals on the upper surface of the horizontal part of the bottom plate 1 to prevent the excavator track 5 from slipping when the excavator is conducting a pressure test, resulting in failure to conduct the test normally, and a locking block 3 is provided on the inner side of the upper end of the curved part of the bottom plate 1 to prevent the excavator track 5 from moving forward and moving up and down, so as to ensure that the purpose of pressure holding is achieved.

[0028] In order to ensure stability during testing, the width of the bottom plate 1 is greater than the width of the excavator crawler 5 so that the bottom of the excavator crawler 5 is placed on the bottom plate 1 .

[0029] In order to prevent the excavator track 5 from slipping during testing, the spacing between the anti-sliding blocks 2 is a multiple of the spacing between the first grooves 6 on the excavator track 5, and the cross-sectional dimensions of the anti-sliding blocks 2 and the first grooves 6 on the excavator track 5 are the same, so that the anti-sliding blocks 2 can function effectively.

[0030] In order to lock the excavator crawler 5 during testing to prevent the excavator crawler 5 from moving, the locking block 3 has the same cross-sectional size as the first groove 6 on the excavator crawler 5 .

[0031] In order to adjust the size of the anti-sliding block 2 and the locking block 3 and the distance between the anti-sliding block 2, so that the anti-sliding block 2 and the locking block 3 can better fit the excavator track 5 and can be applicable to various models of excavator tracks 5, second grooves 7 are provided on both sides of the bottom of the anti-sliding block 2 and the locking block 3, and the second grooves 7 are clamped with the adjustment block 8.

[0032] The curved portion of the base plate 1 is "C"-shaped, and the distance between the upper and lower openings of the curved portion of the base plate 1 is twice the sum of the radius of the rotating wheel 9 and the thickness of the crawler track 5. The opening size of the curved portion of the base plate 1 can be adjusted according to the diameter of the rotating wheel 9 and the thickness of the excavator crawler track 5.

[0033] In order to prevent the device from being damaged during the pressure holding test, the device also includes a reinforcing rib plate 4, which is vertically fixed on the outside of the curved part of the bottom plate 1, and the bottom end of the reinforcing rib plate 4 is fixedly connected to the steel plate laid in the workshop.

[0034] When conducting a hydraulic excavator forward travel pressure holding test, determine the installation position of the travel pressure holding device according to the track gauge of the excavator track 5, and weld the bottom plate 1 of the device securely to the steel plate laid in the commissioning workshop; when conducting a hydraulic excavator forward travel pressure holding test, slowly drive the excavator forward onto the device to ensure that the first groove 6 on the excavator track 5 is just inserted into the anti-skid plate 2; insert the locking block 3 into the first groove 6 of the excavator track 5, and start testing related performance.

[0035] Example 2

[0036] refer to Figures 1 to 3 and Figure 5 On the basis of Example 1, the device is used to carry out a hydraulic excavator backward walking pressure holding test.

[0037] When conducting a hydraulic excavator forward travel pressure holding test, determine the installation position of the travel pressure holding device according to the track gauge of the excavator track 5, and weld the bottom plate 1 of the device securely to the steel plate laid in the commissioning workshop; when conducting a backward travel pressure holding test of the excavator, slowly tilt the excavator backward onto the device to ensure that the first groove 6 on the excavator track 5 is just inserted into the anti-skid plate 2; insert the locking block 3 into the first groove 6 of the excavator track 5, and start testing related performance.

[0038] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydraulic excavator walking pressure test device, comprising an excavator crawler (5), wherein both ends of the excavator crawler (5) are sleeved with rotating wheels (9), and the surface of the excavator crawler (5) is provided with first grooves (6) at equal intervals, characterized in that: It also comprises a bottom plate (1), the bottom plate (1) comprising a horizontal portion and a curved portion, the horizontal portion and the curved portion of the bottom plate (1) being arranged in an "L" shape, the horizontal portion of the bottom plate (1) being fixedly connected to a steel plate laid in a workshop, a plurality of anti-sliding blocks (2) being welded at intervals laterally on the upper surface of the horizontal portion of the bottom plate (1), and a locking block (3) being provided on the inner side of the upper end of the curved portion of the bottom plate (1).

2. The hydraulic excavator travel pressure holding test device according to claim 1, characterized in that: The width of the bottom plate (1) is greater than the width of the excavator crawler track (5).

3. The hydraulic excavator travel pressure holding test device according to claim 2, characterized in that: The spacing between the anti-sliding blocks (2) is a multiple of the spacing between the first grooves (6) on the excavator crawler (5), and the cross-sectional dimensions of the anti-sliding blocks (2) and the first grooves (6) on the excavator crawler (5) are the same.

4. The hydraulic excavator travel pressure holding test device according to claim 3, characterized in that: The locking block (3) has the same cross-sectional dimensions as the first groove (6) on the excavator crawler (5).

5. The hydraulic excavator travel pressure holding test device according to claim 4, characterized in that: Second grooves (7) are provided on both sides of the bottom of the anti-sliding block (2) and the locking block (3), and the second grooves (7) are engaged with the adjustment block (8).

6. The hydraulic excavator travel pressure holding test device according to claim 5, characterized in that: The curved portion of the bottom plate (1) is in a "C" shape, and the distance between the upper and lower openings of the curved portion of the bottom plate (1) is twice the sum of the radius of the rotating wheel (9) and the thickness of the crawler track (5).

7. The hydraulic excavator travel pressure holding test device according to claim 6, characterized in that: It also comprises a reinforcing rib plate (4), wherein the reinforcing rib plate (4) is vertically fixedly arranged on the outside of the curved portion of the bottom plate (1), and the bottom end of the reinforcing rib plate (4) is fixedly connected to a steel plate laid in the workshop.

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