A guard for a loader rollover load test

Abstract

The utility model discloses a kind of protective devices for loader tipping load test, belong to loader technical field, including protection main body, connecting bolt, reinforcing rib plate and stop plate, the connecting bolt is connected with protection main body and stop plate, the lower end of protection main body is equipped with reinforcing rib plate;The protection main body includes first plate body, second plate body, third plate body and fourth plate body, one end surface of the first plate body is provided with first circular slot, the lower end of the first plate body is provided with second plate body, one end of the second plate body is provided with third plate body, one end of the third plate body is provided with fourth plate body;One end face of the stop plate is provided with second circular slot, and the second circular slot is towards first circular slot. When loader tipping load test, it can avoid the damage to the paint surface, edge shape and the damage to steel wire rope caused by shovel, has strong applicability, and ensures test efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of loader technology, specifically relating to a protective device for testing the tipping load of a loader. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] Loaders are widely used in earthmoving, mining, ports, agriculture, and other applications, serving as an important type of construction machinery. To ensure the reliability of loaders, various tests are conducted before they leave the factory. The tilt load test is a crucial test for evaluating the stability and safety of loaders under specific working conditions.

[0004] The typical process for testing a loader's tipping load involves attaching a steel cable above the bucket and connecting a tension gauge below. During the test, the inward compression of the steel cable at the bottom of the bucket's side panels can cause deformation and paint damage to the edges, especially with softer materials. Furthermore, the significant stress on the steel cable during testing, coupled with potential relative movement between the cable and the bucket at the bottom of the side panels, poses a risk of scratches to the cable. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a protective device for loader tilt load testing. It can prevent damage to the paint and edge shape of the bucket, as well as damage to the wire rope, during loader tilt load testing. It has strong applicability and ensures testing efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A protective device for testing the rollover load of a loader includes a protective body, connecting bolts, reinforcing ribs, and an anti-detachment plate. The connecting bolts connect the protective body and the anti-detachment plate, and the lower end of the protective body is provided with reinforcing ribs. The protective body includes a first plate, a second plate, a third plate, and a fourth plate. A first arc groove is provided on one end surface of the first plate, a second plate is provided at the lower end of the first plate, a third plate is provided at one end of the second plate, and a fourth plate is provided at one end of the third plate. A second arc groove is provided on one end surface of the anti-detachment plate, and the second arc groove faces the first arc groove.

[0007] As a further technical solution, the anti-detachment plate is provided with connection holes at both ends, and the connection bolts pass through the connection holes to connect the anti-detachment plate and the first plate of the protective body.

[0008] As a further technical solution, several anti-detachment plates are arranged at intervals, and the two end faces of the anti-detachment plates are arc surfaces.

[0009] As a further technical solution, the first plate, the second plate, the third plate and the fourth plate are an integrated structure; the other end surface of the first plate is a plane.

[0010] As a further technical solution, the upper end face of the second plate is perpendicular to the other end face of the first plate, and the lower end face of the second plate is an arc surface.

[0011] As a further technical solution, the upper end of the first arc groove extends to the top of the first plate, and the lower end of the first arc groove extends to the arc surface of the second plate.

[0012] As a further technical solution, the third plate is inclined to the second plate, the upper and lower surfaces of the third plate are both planes, the upper surface of the third plate is connected to the upper surface of the second plate, and the lower surface of the third plate is connected to the arc surface of the second plate.

[0013] As a further technical solution, the fourth plate is parallel to the second plate, and the third plate is inclined to the fourth plate; the upper and lower end faces of the fourth plate are both planes.

[0014] As a further technical solution, the upper end face of the fourth plate is connected to the upper end face of the third plate, and the lower end face of the fourth plate is connected to the lower end face of the third plate.

[0015] As a further technical solution, a reinforcing rib is provided at the lower end of the fourth plate, one end face of the reinforcing rib is connected to the lower end face of the third plate, and the other end face of the reinforcing rib is connected to the lower end face of the fourth plate.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are: The protective body of this utility model is an integrated structure composed of a first plate, a second plate, a third plate, and a fourth plate. The first arc groove of the protective body is arranged opposite to the second arc groove of the anti-detachment plate, which can fit the wire rope to achieve stable positioning, thereby preventing the wire rope from shaking and scratching the side plate of the excavator bucket.

[0017] Furthermore, the planar and transitional structural design of the protective body is adaptable to the installation requirements of buckets of different sizes, ensuring that the device remains in close contact with the bucket side plate throughout the testing process, effectively improving structural adaptability. The protective body, in conjunction with the anti-detachment plate, prevents direct contact between the wire rope and the bucket side plate, avoiding scratches and edge deformation caused by the wire rope pressing on the bucket side plate, while also protecting the bucket's paint from damage. Assembly and fixation can be completed using connecting bolts, eliminating the need for complex assembly steps. During installation, simply adjust the position of the protective device to ensure it fits snugly against the bucket side plate. This design perfectly adapts to the operational procedures of loader tilt load testing, effectively improving testing efficiency and providing reliable assurance for loader tilt load testing. Attached Figure Description

[0018] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0019] Figure 1 This is a schematic diagram of the structure of the protective device for testing the rollover load of a loader according to this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the protective device for testing the rollover load of a loader according to this utility model. Figure 2 ; In the diagram: 1. Protective body; 11. First plate; 12. Second plate; 13. Third plate; 14. Fourth plate; 15. First arc groove; 2. Connecting bolt; 3. Anti-detachment plate; 31. Second arc groove; 32. Connecting hole; 4. Reinforcing rib. Detailed Implementation It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0020] The present invention will now be described in detail with reference to the accompanying drawings. This embodiment discloses a protective device for testing the rollover load of a loader, such as... Figure 1 and Figure 2 As shown, it includes a protective body 1, connecting bolts 2, reinforcing ribs 4, and anti-detachment plates 3. The connecting bolts 2 connect the protective body 1 and the anti-detachment plates 3. The lower end of the protective body 1 is provided with reinforcing ribs 4. The protective body 1 includes a first plate 11, a second plate 12, a third plate 13, and a fourth plate 14. A first arc groove 15 is provided on one end surface of the first plate 11. The second plate 12 is provided at the lower end of the first plate 11. The third plate 13 is provided at one end of the second plate 12. The fourth plate 14 is provided at one end of the third plate 13. A second arc groove 31 is provided on one end surface of the anti-detachment plate 3, and the second arc groove 31 faces the first arc groove 15.

[0021] Specifically, the protective body 1 is an integrated structure consisting of a first plate 11, a second plate 12, a third plate 13, and a fourth plate 14. The first arc groove 15 of the protective body 1 is set opposite to the second arc groove 31 of the anti-detachment plate 3, which can fit the wire rope to achieve stable positioning and thus prevent the wire rope from shaking and scratching the side plate of the excavator bucket.

[0022] Furthermore, the planar and transitional structural design of the protective body 1 can adapt to the installation requirements of buckets of different specifications, ensuring that the device remains in close contact with the bucket side plate during testing, effectively improving structural adaptability. The protective body 1, in conjunction with the anti-detachment plate 3, prevents direct contact between the wire rope and the bucket side plate, avoiding pressure from the wire rope causing scratches and edge deformation, while also protecting the bucket's paint from damage. Assembly and fixation can be completed using connecting bolts 2, eliminating the need for complex assembly steps. During installation, simply adjust the position of the protective device to ensure it fits snugly against the bucket side plate. This design perfectly adapts to the loader tilt load testing operation process, effectively improving testing efficiency and providing reliable assurance for loader tilt load testing.

[0023] Specifically, the first arc groove 15 and the second arc groove 31 are both arc grooves with a radius of 15mm. Furthermore, the lower end face of the second plate 12 of the protective body 1 adopts an arc transition method, which intersects with the first arc groove 15 to form an arc transition surface. This can better realize the positioning between the protective device and the wire rope and reduce the risk of the wire rope being scratched at this position.

[0024] The anti-detachment plate 3 has connecting holes 32 at both ends. The connecting bolts 2 pass through the connecting holes 32 to connect the anti-detachment plate 3 and the first plate 11 of the protective body 1. Several anti-detachment plates 3 are arranged at intervals, and the two end faces of the anti-detachment plate 3 are arc surfaces.

[0025] Specifically, the connecting bolt 2 passes through the connecting hole 32 of the anti-detachment plate 3 and is fastened to the first plate 11, forming a stable rigid connection. This effectively resists the lateral tension generated by the wire rope during testing and the vibration impact caused by the bucket's movement, preventing the anti-detachment plate 3 from separating from the protective body 1 and ensuring that the protective device always remains in a complete assembly state. Furthermore, the spaced anti-detachment plates 3 can constrain the wire rope from multiple positions, limiting its deviation range during testing, preventing it from shaking due to force, and avoiding uneven force caused by deviation, thus reducing the risk of scratches. The rounded surfaces at both ends of the anti-detachment plate 3 prevent the edges of the anti-detachment plate 3 from scratching the bucket's paint surface during device installation and adjustment; protecting operators from scratches by sharp parts during assembly and maintenance.

[0026] The first plate 11, the second plate 12, the third plate 13 and the fourth plate 14 are an integrated structure; the other end surface of the first plate 11 is flat.

[0027] Specifically, the plane at the other end of the first plate 11 can be tightly fitted with the surface of the bucket side plate to reduce the fitting gap and prevent the protective body 1 from shaking due to the gap during the test, thereby preventing friction damage to the paint surface between the protective body 1 and the bucket side plate.

[0028] The upper end face of the second plate 12 is perpendicular to the other end face of the first plate 11, and the lower end face of the second plate 12 is an arc surface. The upper end of the first arc groove 15 extends to the top of the first plate 11, and the lower end of the first arc groove 15 extends to the arc surface of the second plate 12.

[0029] Specifically, the upper surface of the second plate 12 is perpendicular to the plane of the first plate 11 and can match the vertical corner of the bucket side plate to ensure the fit between the protective body 1 and the bucket side plate and the bottom of the bucket; the arc surface of the lower end can fit with the arc transition area of ​​the bottom of the bucket to avoid local stress concentration due to structural mismatch and protect the paint and edge shape of the bottom of the bucket from damage.

[0030] The first arc groove 15 extends from the top of the first plate 11 to the arc surface of the second plate 12, forming a complete arc-shaped limiting channel. This channel can stably constrain the wire rope within the arc groove, preventing the wire rope from coming out of the groove during testing. At the same time, the arc-shaped channel can contact the surface of the wire rope, dispersing the force on the wire rope, reducing local compression friction, lowering the probability of the wire rope being scratched, and preventing the wire rope from directly pressing against the edge of the bucket side plate.

[0031] The third plate 13 is inclined to the second plate 12. Both the upper and lower surfaces of the third plate 13 are flat. The upper surface of the third plate 13 connects to the upper surface of the second plate 12, and the lower surface of the third plate 13 connects to the arc surface of the second plate 12. The fourth plate 14 is parallel to the second plate 12, and the third plate 13 is inclined to the fourth plate 14. Both the upper and lower surfaces of the fourth plate 14 are flat. The upper surface of the fourth plate 14 connects to the upper surface of the third plate 13, and the lower surface of the fourth plate 14 connects to the lower surface of the third plate 13.

[0032] Specifically, the structure in which the fourth plate 14 is parallel to the second plate 12 and inclined to connect with the third plate 13 can be adapted to loader buckets with different side plate thicknesses and different bucket bottom inclination angles by adjusting the contact position between the fourth plate 14 and the bucket bottom plate. This eliminates the need to design separate protective devices for specific buckets, improves the applicability of the device, and reduces testing costs.

[0033] A reinforcing rib 4 is provided at the lower end of the fourth plate 14. One end face of the reinforcing rib 4 is connected to the lower end face of the third plate 13, and the other end face of the reinforcing rib 4 is connected to the lower end face of the fourth plate 14.

[0034] Specifically, the thickness of the reinforcing rib 4 is 10mm. The reinforcing rib 4 connects the lower end of the fourth plate 14 and the lower end face of the third plate 13, which can strengthen the structural strength of the connection between the fourth plate 14 and the third plate 13, prevent the connection between the fourth plate 14 and the third plate 13 from breaking or deforming, ensure the structural integrity of the protective device, improve the strength of the protective device, and extend the service life of the protective device.

[0035] Instructions for using protective devices: First, place the test wire rope on the loader bucket and adjust its position so that it passes through the bucket's center of gravity. Then, pass the wire rope between the protective body 1 and the anti-detachment plate 3, and connect the first plate 11 of the protective body 1 and the anti-detachment plate 3 with the connecting bolt 2. Pre-tighten the connecting bolt 2 to prevent the protective device from slipping off the wire rope. Operate the loader bucket to pre-tighten the wire rope, then adjust the position of the protective device to the bottom of the bucket side plate, ensuring that the arc surface of the protective body 1 is tightly fitted with the bottom of the bucket and the plane of the protective device is tightly fitted with the side plate of the bucket. Operate the loader bucket to perform a normal test.

[0036] The outer corner of the protective device uses a rounded transition, intersecting with the rounded groove to form a rounded transition surface. This rounded transition surface is the rounded surface of the second plate 12, which better facilitates the positioning of the protective device and the wire rope and reduces the risk of the wire rope being scratched at this location. A 15mm transition plane is provided between the vertical plane of the protective device and the transition slope. The vertical plane is the surface of the first plate 11, the transition slope is the surface of the third plate 13, and the transition plane is the upper surface of the second plate 12. The vertical plane, the transition plane, and the transition slope work together to accommodate buckets with different side plate thicknesses.

[0037] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A protective device for testing the rollover load of a loader, characterized in that, It includes a protective body, connecting bolts, reinforcing ribs, and anti-detachment plates. The connecting bolts connect the protective body and the anti-detachment plates, and the lower end of the protective body is provided with reinforcing ribs. The protective body includes a first plate, a second plate, a third plate, and a fourth plate. A first arc groove is provided on one end surface of the first plate, a second plate is provided at the lower end of the first plate, a third plate is provided at one end of the second plate, and a fourth plate is provided at one end of the third plate. A second arc groove is provided on one end surface of the anti-detachment plate, and the second arc groove faces the first arc groove.

2. The protective device for loader rollover load testing as described in claim 1, characterized in that, The anti-detachment plate has connection holes at both ends, and the connecting bolts pass through the connection holes to connect the anti-detachment plate and the first plate of the protective body.

3. The protective device for loader rollover load testing as described in claim 1, characterized in that, Several anti-detachment plates are spaced apart, and both ends of the anti-detachment plates are arc surfaces.

4. A protective device for loader rollover load testing as described in claim 1, characterized in that, The first plate, the second plate, the third plate, and the fourth plate are an integrated structure; the other end surface of the first plate is a plane.

5. A protective device for loader rollover load testing as described in claim 1, characterized in that, The upper end face of the second plate is perpendicular to the other end face of the first plate, and the lower end face of the second plate is an arc surface.

6. A protective device for loader rollover load testing as described in claim 5, characterized in that, The upper end of the first arc groove extends to the top of the first plate, and the lower end of the first arc groove extends to the arc surface of the second plate.

7. A protective device for loader rollover load testing as described in claim 1, characterized in that, The third plate is inclined to the second plate. The upper and lower surfaces of the third plate are both planes. The upper surface of the third plate is connected to the upper surface of the second plate, and the lower surface of the third plate is connected to the arc surface of the second plate.

8. A protective device for loader rollover load testing as described in claim 1, characterized in that, The fourth plate is parallel to the second plate, and the third plate is inclined to the fourth plate; the upper and lower end faces of the fourth plate are both planes.

9. A protective device for loader rollover load testing as described in claim 8, characterized in that, The upper end face of the fourth plate is connected to the upper end face of the third plate, and the lower end face of the fourth plate is connected to the lower end face of the third plate.

10. A protective device for loader rollover load testing as described in claim 1, characterized in that, The lower end of the fourth plate is provided with a reinforcing rib. One end face of the reinforcing rib is connected to the lower end face of the third plate, and the other end face of the reinforcing rib is connected to the lower end face of the fourth plate.

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