Guardrail of mining excavator

Abstract

The utility model discloses a mining excavator guardrail, which belongs to the technical field of engineering machinery and comprises a first handrail, the lower portion of the first handrail is connected with a second handrail, and the first handrail and the second handrail are both of an integrated structure. The first handrail and the second handrail comprise a plurality of bending parts and connecting parts, and the bending parts and the connecting parts are arranged at intervals; the side parts of the first handrail and the second handrail are connected with a supporting piece, a mounting piece is arranged at the lower part of the supporting piece, and the bottom surface and the side surface of the supporting piece are connected with the mounting piece. The safety of a driver can be guaranteed when the vehicle runs or works on an uneven road section, the strength is high, and the service life is long.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering machinery, and in particular relates to a guardrail for a mining excavator. Background Art

[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] An excavator is an earth-moving machine that uses a bucket to dig materials above or below the surface of the machine and load them into a transport vehicle or unload them to a stockpile. The cab of the excavator is equipped with a guardrail in front of the driver to protect the driver, and the driver can hold the guardrail when getting on and off the vehicle.

[0004] Although the current guardrails can provide protection, when driving or working on a downward sloping road, gravity causes the driver's body to tilt forward. At this time, unlike on flat ground, the driver's feet cannot be supported by the bottom plate, so there is a risk of the driver losing balance. When the driver loses balance, the guardrail needs to have a better protective effect to ensure the driver's safety.

[0005] In addition, most of the current guardrail handrails are spliced ​​structures connected by welding. However, welding stress is concentrated, and cracks are easily generated after vibration until they break, which makes them unusable for long-term use. In addition, the contact surface between the guardrail and the mounting seat is mostly point-to-surface contact, with a small contact area, resulting in large stress concentration and low strength after welding. Utility Model Content

[0006] In view of the above problems, the utility model provides a mining excavator guardrail, which can ensure the safety of the driver when driving or working on uneven roads, has high strength and long service life.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A mining excavator guardrail comprises a first handrail, the lower part of which is connected to a second handrail, and the first handrail and the second handrail are both integrated structures; the first handrail and the second handrail comprise a plurality of bending portions and connecting portions, and the bending portions and the connecting portions are arranged at intervals; the side portions of the first handrail and the second handrail are connected to a supporting member, a mounting member is arranged at the lower part of the supporting member, and the bottom and side surfaces of the supporting member are connected to the mounting member.

[0009] Furthermore, the first handrail includes a first connecting portion, one end of the first connecting portion is a first bending portion, one end of the first bending portion is a second connecting portion, and one end of the second connecting portion is a second bending portion.

[0010] Further, one end of the second bending portion is the third connection portion, one end of the third connection portion is the third bending portion, one end of the third bending portion is the fourth connection portion, one end of the fourth connection portion is the fourth bending portion, and one end of the fourth bending portion is the fifth connection portion.

[0011] Furthermore, the first connection portion and the fifth connection portion are vertically arranged, and the first bending portion, the second connection portion, the second bending portion, the third connection portion, the third bending portion, the fourth connection portion and the fourth bending portion are horizontally arranged.

[0012] Furthermore, the second armrest includes a sixth connection portion, one end of the sixth connection portion is fixedly connected to the side of the first connection portion; the other end of the sixth connection portion is a fifth bending portion, one end of the fifth bending portion is a seventh connection portion, one end of the seventh connection portion is a sixth bending portion, one end of the sixth bending portion is an eighth connection portion, and one end of the eighth connection portion is fixedly connected to the side of the fifth connection portion.

[0013] Furthermore, the sixth connecting portion, the fifth bending portion, the seventh connecting portion, the sixth bending portion and the eighth connecting portion are arranged transversely.

[0014] Furthermore, the support member is an integrated structure, and a plurality of the support members are arranged at intervals; the support member includes a first support plate, and second support plates are arranged at both ends of the first support plate.

[0015] Furthermore, a second semicircular hole is provided in the middle of the connection position between the first support plate and the second support plate, and a first semicircular hole is provided in the upper part; the second connection part, the third connection part and the fourth connection part of the first armrest are embedded in the first semicircular hole; the sixth connection part, the seventh connection part and the eighth connection part of the second armrest are embedded in the second semicircular hole.

[0016] Furthermore, the mounting member is an integrated structure, and the mounting member includes a first mounting plate, a second mounting plate is arranged at the lower end of the first mounting plate, and a plurality of mounting holes are symmetrically arranged on the first mounting plate.

[0017] Furthermore, the first handrail, the second handrail and the support member are welded, and the support member and the mounting member are welded.

[0018] Compared with the prior art, the utility model has the following advantages and positive effects:

[0019] The utility model provides a first armrest and a second armrest, and the first armrest and the second armrest have a plurality of connecting parts and bending parts, and the connecting positions of the plurality of connecting parts and the bending parts form a plurality of protection areas, which can better fit the human body for support and protection, and when the driver's center of gravity is unstable, protection can be provided from multiple directions, and the driver's safety can be ensured when driving or working on uneven roads.

[0020] The bent portion of the utility model has a certain curvature, which makes it easier for the driver to grasp the guardrail, thereby ensuring the safety of the driver when getting on and off the vehicle and avoiding the problem of the driver slipping out of the hand due to an inappropriate grasping position.

[0021] The first handrail, the second handrail and the support member of the utility model are all integrated structures with high overall strength, which can cope with the situation of stress concentration. In addition, the support member and the mounting member are in surface contact, and the strength after welding is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0023] Figure 1 It is a structural schematic diagram of a mining excavator guardrail of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the first handrail and the second handrail of the utility model;

[0025] Figure 3 It is a structural diagram of the support member of the utility model;

[0026] Figure 4 It is a structural diagram of the mounting member of the utility model;

[0027] In the figure: 1, first handrail; 11, first connecting portion; 12, first bending portion; 13, second connecting portion; 14, second bending portion; 15, third connecting portion; 16, third bending portion; 17, fourth connecting portion; 18, fourth bending portion; 19, fifth connecting portion;

[0028] 2. second handrail; 21. sixth connecting portion; 22. fifth bending portion; 23. seventh connecting portion; 24. sixth bending portion; 25. eighth connecting portion;

[0029] 3. Support member; 31. First support plate; 32. Second support plate; 33. First semicircular hole; 34. Second semicircular hole;

[0030] 4. Mounting piece; 41. First mounting plate; 42. Second mounting plate; 43. Mounting hole. DETAILED DESCRIPTION

[0031] It should be noted that the following detailed descriptions are all exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0032] The following is a detailed description of the utility model with reference to the accompanying drawings. The present embodiment discloses a mining excavator guardrail, such as Figure 1 As shown, it includes a first handrail 1, the lower part of the first handrail 1 is connected to the second handrail 2, and the first handrail 1 and the second handrail 2 are both integrated structures; the first handrail 1 and the second handrail 2 include a plurality of bending portions and connecting portions, and the bending portions and the connecting portions are arranged at intervals; the side portions of the first handrail 1 and the second handrail 2 are connected to a support member 3, a mounting member 4 is arranged at the lower part of the support member 3, and the bottom and side surfaces of the support member 3 are connected to the mounting member 4.

[0033] A plurality of protection zones are formed at the connection positions of several connecting parts and bending parts. The protection zone is an area with a certain curvature, which can fit the human body for protection. The support member 3 provides vertical support for the first handrail 1 and the second handrail 2, thereby achieving more stable support. The first handrail 1, the second handrail 2 and the support member 3 are welded, and the support member 3 and the mounting member 4 are welded. The mounting member 4 and the support member 3 are in surface contact, and the strength after welding is higher.

[0034] like Figure 2 As shown, the first handrail 1 includes a first connection portion 11, one end of the first connection portion 11 is a first bending portion 12, one end of the first bending portion 12 is a second connection portion 13, and one end of the second connection portion 13 is a second bending portion 14. One end of the second bending portion 14 is a third connection portion 15, one end of the third connection portion 15 is a third bending portion 16, one end of the third bending portion 16 is a fourth connection portion 17, one end of the fourth connection portion 17 is a fourth bending portion 18, and one end of the fourth bending portion 18 is a fifth connection portion 19.

[0035] The second armrest 2 includes a sixth connection portion 21, one end of the sixth connection portion 21 is fixedly connected to the side of the first connection portion 11; the other end of the sixth connection portion 21 is the fifth bending portion 22, one end of the fifth bending portion 22 is the seventh connection portion 23, one end of the seventh connection portion 23 is the sixth bending portion 24, one end of the sixth bending portion 24 is the eighth connection portion 25, and one end of the eighth connection portion 25 is fixedly connected to the side of the fifth connection portion 19.

[0036] The first connection portion 11 and the fifth connection portion 19 are arranged vertically, and the first bending portion 12, the second connection portion 13, the second bending portion 14, the third connection portion 15, the third bending portion 16, the fourth connection portion 17 and the fourth bending portion 18 are arranged horizontally. The sixth connection portion 21, the fifth bending portion 22, the seventh connection portion 23, the sixth bending portion 24 and the eighth connection portion 25 are arranged horizontally.

[0037] The various bending parts and connecting parts of the first handrail 1 and the second handrail 2 are integrated structures, rather than a whole section of round pipe welded together, which can improve the overall strength and provide better protection.

[0038] The first connecting portion 11 and the first bending portion 12 of the first handrail 1 play a role in connecting with the second handrail 2, and one end of the first handrail 1 is transformed from a horizontal setting to a vertical setting through the first bending portion 12. The fourth bending portion 18 and the fifth bending portion 22 of the first handrail 1 also play a role in connecting with the second handrail 2, and the other end of the first handrail 1 is transformed from a horizontal setting to a vertical setting through the fourth bending portion 18.

[0039] The second connecting portion 13, the second bending portion 14 and the third connecting portion 15 form a first protection zone, which has a small curvature and is suitable for protecting the driver's arms. The third connecting portion 15, the third bending portion 16 and the fourth connecting portion 17 form a second protection zone, which has a large curvature and is suitable for protecting the driver's chest or back. The sixth connecting portion 21, the fifth bending portion 22 and the seventh connecting portion 23 form a third protection zone, which is suitable for protecting the driver's legs. The seventh connecting portion 23, the sixth bending portion 24 and the fifth connecting portion 19 form a fourth protection zone, which is suitable for protecting the driver's back.

[0040] like Figure 3 As shown, the support member 3 is an integrated structure, and a plurality of support members 3 are arranged at intervals; the support member 3 includes a first support plate 31, and second support plates 32 are arranged at both ends of the first support plate 31. A second semicircular hole 34 is arranged in the middle of the connection position of the first support plate 31 and the second support plate 32, and a first semicircular hole 33 is arranged in the upper part; the second connecting portion 13, the third connecting portion 15 and the fourth connecting portion 17 of the first handrail 1 are embedded in the first semicircular hole 33; the sixth connecting portion 21, the seventh connecting portion 23 and the eighth connecting portion 25 of the second handrail 2 are embedded in the second semicircular hole 34.

[0041] The support member 3 is an integral non-welded sheet metal bent channel steel, that is, the two ends of a steel plate are bent to form a first support plate 31 and a second support plate 32. The connecting portion and the connecting position of the first semicircular hole 33 and the second semicircular hole 34 are connected by welding. The support member 3 provides vertical support, which improves the strength of the guardrail.

[0042] like Figure 4As shown, the mounting member 4 is an integrated structure, and the mounting member 4 includes a first mounting plate 41 , a second mounting plate 42 is arranged at the lower end of the first mounting plate 41 , and a plurality of mounting holes 43 are symmetrically arranged on the first mounting plate 41 .

[0043] The first mounting plate 41 of the mounting member 4 is welded to the first supporting plate 31 of the supporting member 3, and the second mounting plate 42 of the mounting member 4 is welded to the side of the first supporting plate 31 and the second supporting plate 32 of the supporting member 3. The mounting plate and the supporting plate are in surface-to-surface contact, the connection is more secure, and the overall strength is high. The mounting holes 43 cooperate with the bolts to mount the guardrail at the corresponding position, and multiple mounting holes 43 are provided to make the installation more stable.

[0044] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A mining excavator guardrail, characterized in that: The first armrest comprises a first armrest, the lower part of which is connected to the second armrest, and the first armrest and the second armrest are both integrated structures; the first armrest and the second armrest comprise a plurality of bending parts and connecting parts, and the bending parts and the connecting parts are arranged at intervals; the side parts of the first armrest and the second armrest are connected to a support member, a mounting member is arranged at the lower part of the support member, and the bottom surface and the side surface of the support member are connected to the mounting member; The first handrail includes a first connecting portion, one end of the first connecting portion is a first bending portion, one end of the first bending portion is a second connecting portion, and one end of the second connecting portion is a second bending portion; One end of the second bending portion is the third connecting portion, one end of the third connecting portion is the third bending portion, one end of the third bending portion is the fourth connecting portion, one end of the fourth connecting portion is the fourth bending portion, and one end of the fourth bending portion is the fifth connecting portion; The first connecting portion and the fifth connecting portion are arranged vertically, and the first bending portion, the second connecting portion, the second bending portion, the third connecting portion, the third bending portion, the fourth connecting portion and the fourth bending portion are arranged horizontally; The second armrest includes a sixth connection portion, one end of which is fixedly connected to the side of the first connection portion; the other end of the sixth connection portion is a fifth bending portion, one end of the fifth bending portion is a seventh connection portion, one end of the seventh connection portion is a sixth bending portion, one end of the sixth bending portion is an eighth connection portion, and one end of the eighth connection portion is fixedly connected to the side of the fifth connection portion; The sixth connecting portion, the fifth bending portion, the seventh connecting portion, the sixth bending portion and the eighth connecting portion are arranged transversely; The support member is an integrated structure, and a plurality of the support members are arranged at intervals; the support member comprises a first support plate, and second support plates are arranged at both ends of the first support plate; A second semicircular hole is set in the middle of the connecting position of the first support plate and the second support plate, and a first semicircular hole is set in the upper part; the second connecting part, the third connecting part and the fourth connecting part of the first armrest are embedded in the first semicircular hole; the sixth connecting part, the seventh connecting part and the eighth connecting part of the second armrest are embedded in the second semicircular hole.

2. A mining excavator guardrail as claimed in claim 1, characterized in that: The mounting member is an integrated structure, and the mounting member includes a first mounting plate, a second mounting plate is arranged at the lower end of the first mounting plate, and a plurality of mounting holes are symmetrically arranged on the first mounting plate.

3. A mining excavator guardrail as claimed in claim 1, characterized in that: The first handrail, the second handrail and the support member are welded, and the support member and the mounting member are welded.

Images