A mining shovel and a waterproof cover plate assembly for an a-frame drag link thereof

Abstract

The utility model discloses a mining electric shovel and A-shaped frame pull rod waterproof cover plate assembly, and left cover plate and right cover plate butt joint together and arrange on the machine shed top cover plate, left fixed base and right fixed base butt joint together and arrange on left cover plate and right cover plate, and pull rod passes through from the butt joint of left and right cover plate and the butt joint of left and right fixed base, two rubber sleeves are installed between left cover plate and left fixed base and between right cover plate and right fixed base respectively, and after butt joint, two rubber sleeves surround pull rod and closely fit with the side of pull rod, and first fastening part is structured to fix and release the fixing between left and right fixed base, and second fastening part is structured to fix and release the fixing between left cover plate, left fixed base and rubber sleeve and between right cover plate, right fixed base and rubber sleeve. Based on the existing machine shed top cover plate, a group of waterproof cover plate assembly of direct connection pull rod is newly added to the upper portion, and the waterproof performance of the part is strengthened.

Description

Technical Field

[0001] This utility model relates to a waterproof cover plate assembly for the A-shaped frame tie rod of a mining electric shovel, belonging to the technical field of mining electric shovels. Background Technology

[0002] Currently, the A-frame tie rod of the electric shovel and the roof cover of the connected shed are assembled. This existing assembly method has a sealing problem caused by vibration of the A-frame, leading to rain leakage inside the shed during rain. The remedial method of applying sealant after assembly will also become ineffective due to prolonged exposure to sunlight and vehicle vibration.

[0003] The problems mentioned above are mainly caused by the following reasons: 1. The weld quality of the various sub-components that make up the top cover of the machine shed is affected by environmental and human factors. Assembly errors are affected by the machining process and geometric tolerances.

[0004] 2. Direct connection with the A-frame tie rod greatly affects the airtightness of the roof cover of the machine shed; the purpose of rain and dust protection cannot be guaranteed.

[0005] 3. Based on on-site feedback, the top cover of the machine shed, which is directly assembled with the A-frame tie rod, is prone to delamination when the vehicle frame vibrates, which has a significant impact on the product life cycle. Summary of the Invention

[0006] This utility model provides a waterproof cover assembly for the machine shed top cover plate position connected to the A-frame tie rod, which ensures long-term sealing without compromising the structural strength of the tie rod itself.

[0007] This utility model is achieved according to the following technical solution: In a first aspect, this utility model provides a waterproof cover plate assembly for the A-frame tie rod of a mining electric shovel, comprising: The left and right cover plates, which are joined together, are arranged on the top cover plate of the machine shed; The left and right fixed bases, which are joined together, are arranged on the left and right cover plates, and the pull rod passes through the joint of the left and right cover plates and the joint of the left and right fixed bases. Two rubber sleeves are installed between the left cover plate and the left fixed base, and between the right cover plate and the right fixed base, respectively. After the two rubber sleeves are joined together, they surround the pull rod and fit tightly against the side of the pull rod. The first fastening component is configured to secure and release the left and right fixed bases; The second fastening component is configured to fasten and release the left cover plate, the left fixing base and the rubber sleeve, as well as the right cover plate, the right fixing base and the rubber sleeve.

[0008] In some embodiments, the left cover plate and the right cover plate are symmetrical structures; both the left cover plate and the right cover plate are semi-enclosed box-shaped structures composed of a top plate and three side plates, and the top plate has a groove in the middle area of ​​the edge facing the pull rod; after the left cover plate and the right cover plate are joined together, the shape of the through hole formed by the two grooves is the same as the outer contour of the pull rod.

[0009] In some embodiments, the top plate is provided with at least one light hole, and the left and right fixed bases are provided with threaded holes arranged coaxially with the light hole; the second fastening component is a bolt, which passes through the light hole and is screwed into the threaded hole, thereby fixing the cover plate and the fixed base together and pressing the rubber sleeve between them.

[0010] In some embodiments, the threaded holes on the left and right fixed bases are formed by direct drilling; or, the left and right fixed bases are drilled with open holes, and a nut or threaded post coaxial with the open holes is welded at the open holes, wherein the threaded holes are formed by open holes and nuts or threaded posts.

[0011] In some embodiments, the included angles between the three side plates and the top plate are all obtuse angles.

[0012] In some embodiments, the left fixed base and the right fixed base are symmetrical structures; both the left fixed base and the right fixed base are composed of a concave plate and a vertical plate fixed on the concave plate; after the left fixed base and the right fixed base are joined together, the shape of the through hole formed by the two concave plates is the same as the outer contour of the pull rod; the first fastening component fastens the vertical plates on the left and right fixed bases.

[0013] In some embodiments, a vertical plate is fixed at each of the protruding portions at both ends of the concave plate near the top edge, and the vertical plate is arranged perpendicular to the concave plate; after the concave plates on both sides are joined together, the vertical plates on both sides are also joined together.

[0014] In some embodiments, at least one set of coaxially arranged optical holes are provided on the two vertical plates that are joined together. The first fastening component is a bolt and a nut. The bolt passes through the optical hole and the left cover plate and the right cover plate are fixed together by the nut.

[0015] In some embodiments, the left fixed base, the right fixed base, and the rubber sleeve are all arranged in the cavity formed by the left cover plate and the right cover plate; and / or, the gap at the joint of the left cover plate and the right cover plate is sealed by applying adhesive; the gap at the connection between the left cover plate and the right cover plate and the top cover plate of the machine shed is sealed by applying adhesive.

[0016] Secondly, this utility model provides a mining electric shovel, including a machine shed top cover plate, an A-frame, and the aforementioned mining electric shovel A-frame tie rod waterproof cover plate assembly.

[0017] The beneficial effects of this utility model are: Based on the existing roof cover of the machine shed, a new set of waterproof cover components with direct connecting rods is added to the upper part to enhance the waterproof performance of this part and minimize the possibility of water leakage at the connection between the roof cover and the A-frame rod due to vibration.

[0018] The structural form of the waterproof cover assembly has lower requirements for the shape of the tie rod. Whether it is H-shaped or rectangular, it can meet the usage requirements. It has a high degree of fit with the whole and maximizes the waterproof and dustproof reliability of the cover.

[0019] Reduce welding workload and improve production efficiency; reduce the risk of waterproof cover assembly sliding off by connecting it to the tie rod with a rubber sleeve. Attached Figure Description

[0020] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0021] In the attached diagram: Figure 1 This is a structural diagram of a waterproof cover plate assembly for an A-shaped frame tie rod of a mining electric shovel according to the present invention; Figure 2 This is a perspective view of a waterproof cover plate assembly for an A-shaped frame tie rod of a mining electric shovel according to the present invention; Figure 3 This is a structural diagram of the left fixed base of this utility model; Figure 4 This is a structural diagram of the right fixed base of this utility model; Figure 5 This is an application diagram of a waterproof cover plate assembly for an A-shaped frame tie rod of a mining electric shovel according to this utility model.

[0022] Attached diagram labels: 1. Left fixed base, 2. Right fixed base, 3. Left cover plate, 4. Right cover plate, 5. Rubber sleeve, 6. Threaded hole, 7. Smooth hole, 8. Concave plate, 9. Vertical plate, 10. Tie rod, 11. Top cover plate of machine shed, 12. Waterproof cover plate assembly.

[0023] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] like Figure 1 , Figure 2 , Figure 5 As shown, a waterproof cover plate assembly 12 for an A-frame pull rod of a mining electric shovel includes a left cover plate 3, a right cover plate 4, a left fixed base 1, a right fixed base 2, a rubber sleeve 5, a first fastening component, and a second fastening component; the left cover plate 3 and the right cover plate 4 are joined together and arranged on the top cover plate 11 of the machine shed; the left fixed base 1 and the right fixed base 2 are joined together and arranged on the left cover plate 3 and the right cover plate 4; the pull rod 10 passes through the joint of the left and right cover plates 3 and 4 and the joint of the left and right fixed bases 1 and 2. Two rubber sleeves 5 are respectively installed between the left cover plate 3 and the left fixed base 1 and between the right cover plate 4 and the right fixed base 2, and the two rubber sleeves 5 are joined together and surround the pull rod 10, and fit tightly against the side of the pull rod 10; the first fastening component is configured to fix and release the left and right fixed bases 1 and 2; the second fastening component is configured to fix and release the left cover plate 3, the left fixed base 1 and the rubber sleeves 5 and the right cover plate 4, the right fixed base 2 and the rubber sleeves 5.

[0028] The following provides a further explanation of the specific structure of the left and right cover plates mentioned above.

[0029] like Figure 1 , Figure 2As shown, the left cover plate 3 and the right cover plate 4 are symmetrical structures; both the left cover plate 3 and the right cover plate 4 are semi-enclosed box-shaped structures composed of a top plate and three side plates. The top plate has a groove in the middle area of ​​the edge facing the tie rod 10; after the left cover plate 3 and the right cover plate 4 are joined together, the shape of the through hole formed by the two grooves is the same as the outer contour of the tie rod 10.

[0030] Further options, such as Figure 1 , Figure 2 As shown, the top plate is provided with at least one light hole, and the left fixed base 1 and the right fixed base 2 are provided with threaded holes 6 arranged coaxially with the light hole; the second fastening component is a bolt, which passes through the light hole and is tightened in the threaded hole 6, thereby fixing the cover plate and the fixed base together and pressing the rubber sleeve 5 between them.

[0031] In the preferred embodiment, the plates of the left fixed base 1 and the right fixed base 2 are thicker, and the threaded hole 6 is formed by direct drilling; the plates of the left fixed base 1 and the right fixed base 2 are thinner, and smooth holes are drilled on them. A nut or threaded post coaxial with the smooth hole is welded at the smooth hole, and the threaded hole 6 is formed by the smooth hole and the nut or threaded post.

[0032] It should be noted that connecting the cover plate and the fixed base as a whole with bolts can transfer stress to the fixed base, which can reduce adhesive cracking caused by frame vibration and improve the waterproof performance of the waterproof cover plate assembly.

[0033] Further options, such as Figure 1 , Figure 2 As shown, the included angles between the three side panels and the top panel are all obtuse angles.

[0034] The following provides a further explanation of the specific structure of the left and right fixed bases mentioned above.

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the left fixed base 1 and the right fixed base 2 are symmetrical structures; both the left fixed base 1 and the right fixed base 2 are composed of a concave plate 8 and a vertical plate 9 fixed on the concave plate 8; after the left fixed base 1 and the right fixed base 2 are connected, the shape of the through hole formed by the two concave plates 8 is the same as the outer contour of the pull rod 10; the first fastening component fastens the vertical plate 9 on the left and right fixed bases 1 and 2.

[0036] It should be noted that, Figure 1 , Figure 2 A preferred embodiment is provided, wherein the through hole is rectangular in shape, for accommodating the rear tie rod of the A-frame, such as... Figure 5 As shown; of course, the waterproof cover assembly provided by this utility model is also applicable to the front pull rod of the A-frame, only the shape and size of the through hole need to be changed.

[0037] Further options, such as Figure 3 , Figure 4 As shown, a vertical plate 9 is fixed at each of the protruding parts at both ends of the concave plate 8 near the top edge, and the vertical plate 9 is arranged perpendicular to the concave plate 8; after the concave plates 8 on both sides are joined together, the vertical plates 9 on both sides are also joined together.

[0038] Further options, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, at least one set of coaxially arranged light holes 7 are provided on the two vertical plates 9 that are joined together. The first fastening component is a bolt and a nut. The bolt passes through the light hole and the left cover plate 3 and the right cover plate 4 are fixed together by the nut.

[0039] Further options, such as Figure 1 , Figure 2 As shown, the left fixed base 1, the right fixed base 2 and the rubber sleeve 5 are all arranged in the cavity formed by the left cover plate 3 and the right cover plate 4.

[0040] It should be noted that in practical applications, the left fixed base 1, the right fixed base 2, and the rubber sleeve 5 can also be arranged on the outside of the left cover plate 3 and the right cover plate 4. The reason for placing the left fixed base 1, the right fixed base 2, and the rubber sleeve 5 inside the left cover plate 3 and the right cover plate 4 is to better protect the rubber sleeve 5 and extend its service life.

[0041] A further solution is to seal the gap at the joint between the left cover plate 3 and the right cover plate 4 by applying adhesive; and to seal the gap at the connection between the left cover plate 3 and the right cover plate 4 and the top cover plate 11 of the machine shed by applying adhesive.

[0042] It should be noted that since the rubber sleeve 5 is tightly fitted to the pull rod 10, it is equivalent to a flexible connection. The rubber sleeve 5 plays a sealing role on the one hand, and increases the friction at the connection on the other hand, reducing the possibility of the waterproof cover assembly 12 sliding off the top cover 11 of the machine shed due to vibration and thus improving the waterproof performance of the waterproof cover assembly 12.

[0043] The following describes the assembly process of the aforementioned waterproof cover assembly on the A-frame rear tie rod.

[0044] like Figure 1 , Figure 2 , Figure 5As shown, first, the left fixed base 1 and the right fixed base 2 are connected on the tie rod 10, and then the left fixed base 1 and the right fixed base 2 are fixed together by multiple sets of bolts and nuts; then, the two rubber sleeves 5 are connected and tightly fitted to the tie rod 10 and placed on the left fixed base 1 and the right fixed base 2; then, the left cover plate 3 and the right cover plate 4 are connected on the tie rod 10, and the left cover plate 3 and the left fixed base 1 are fixed together by multiple bolts, and the right cover plate 4 and the right fixed base 2 are fixed together; finally, after the waterproof cover plate assembly 12 is assembled, the gap at the joint of the left cover plate 3 and the right cover plate 4 is sealed with glue, and the gap at the connection between the left cover plate 3 and the right cover plate 4 and the top cover plate 11 of the machine shed is sealed with glue.

[0045] In summary, this utility model provides a waterproof cover plate assembly for the A-frame tie rod of a mining electric shovel, achieving the following functions and effects: Based on the existing roof cover of the machine shed, a new waterproof cover assembly with a direct-connecting tie rod is added to its upper part. This enhances the waterproof performance of this area and minimizes the possibility of water leakage at the connection between the roof cover and the A-frame tie rod due to vibration. The structural form of the waterproof cover assembly has lower requirements for the shape of the tie rod; both H-shaped and rectangular shapes can meet the requirements, ensuring a high degree of fit with the overall structure and maximizing the waterproof and dustproof reliability of the cover. This reduces welding workload and improves production efficiency; the connection between the cover assembly and the tie rod via a rubber sleeve reduces the risk of the waterproof cover assembly slipping and falling off.

[0046] The electric mining shovel provided by this utility model is described below. The electric mining shovel described below and the waterproof cover plate assembly described above can be referred to in correspondence.

[0047] The present invention provides a mining electric shovel, including a machine shed top cover plate, an A-frame, and the above-mentioned mining electric shovel A-frame tie rod waterproof cover plate assembly.

[0048] The beneficial effects achieved by the mining electric shovel provided by this utility model are consistent with the beneficial effects achieved by the waterproof cover plate assembly provided by this utility model, so they will not be repeated here.

[0049] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0050] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this invention and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

[0051] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A waterproof cover plate assembly for the A-frame tie rod of a mining electric shovel, characterized in that, include: The left and right cover plates, which are joined together, are arranged on the top cover plate of the machine shed; The left and right fixed bases, which are joined together, are arranged on the left and right cover plates, and the pull rod passes through the joint of the left and right cover plates and the joint of the left and right fixed bases. Two rubber sleeves are installed between the left cover plate and the left fixed base, and between the right cover plate and the right fixed base, respectively. After the two rubber sleeves are joined together, they surround the pull rod and fit tightly against the side of the pull rod. The first fastening component is configured to secure and release the left and right fixed bases; The second fastening component is configured to fasten and release the left cover plate, the left fixing base and the rubber sleeve, as well as the right cover plate, the right fixing base and the rubber sleeve.

2. The waterproof cover plate assembly for the A-frame tie rod of a mining electric shovel according to claim 1, characterized in that: The left and right cover plates are symmetrical structures; both the left and right cover plates are semi-enclosed box-shaped structures composed of a top plate and three side plates, and the top plate has a groove in the middle area of ​​the edge facing the pull rod. After the left and right cover plates are joined together, the through hole formed by the two grooves has the same shape as the outer contour of the pull rod.

3. The waterproof cover plate assembly for the A-frame tie rod of a mining electric shovel according to claim 2, characterized in that: The top plate is provided with at least one light hole, and the left fixed base and the right fixed base are provided with threaded holes arranged coaxially with the light hole; The second fastening component is a bolt, which passes through the light hole and is then tightened in the threaded hole, thereby fixing the cover plate and the fixed base together and pressing the rubber sleeve between them.

4. The waterproof cover plate assembly for the A-frame tie rod of a mining electric shovel according to claim 3, characterized in that: The threaded holes on the left and right fixed bases are formed by direct drilling; or, the left and right fixed bases are drilled with smooth holes, and a nut or threaded post coaxial with the smooth holes is welded at the smooth holes, and the threaded holes are formed by smooth holes and nuts or threaded posts.

5. The waterproof cover plate assembly for the A-frame tie rod of a mining electric shovel according to claim 2, characterized in that: The included angles between the three side plates and the top plate are all obtuse angles.

6. The waterproof cover plate assembly for the A-frame tie rod of a mining electric shovel according to claim 1, characterized in that: The left and right fixed bases are symmetrical structures; both the left and right fixed bases consist of a concave plate and a vertical plate fixed on the concave plate. After the left and right fixed bases are connected, the shape of the through hole formed by the two concave plates is the same as the outer contour of the pull rod. The first fastening component secures the vertical plates on the left and right fixed bases.

7. A waterproof cover plate assembly for an A-frame tie rod of a mining electric shovel according to claim 6, characterized in that: On the side of the concave plate, a vertical plate is fixed at each of the protruding parts at both ends near the top edge, and the vertical plate is arranged perpendicular to the concave plate; after the concave plates on both sides are joined together, the vertical plates on both sides are also joined together.

8. A waterproof cover plate assembly for an A-frame tie rod of a mining electric shovel according to claim 7, characterized in that: The two vertical plates that are joined together are provided with at least one set of coaxially arranged optical holes. The first fastening component is a bolt and a nut. The bolt passes through the optical hole and the left cover plate and the right cover plate are fixed together by the nut.

9. A waterproof cover plate assembly for an A-frame tie rod of a mining electric shovel according to claim 1, characterized in that: The left fixed base, the right fixed base, and the rubber sleeve are all arranged in the cavity formed by the left cover plate and the right cover plate; and / or, The gap at the joint between the left and right cover plates is sealed with adhesive; the gap at the connection between the left and right cover plates and the top cover plate of the machine shed is sealed with adhesive.

10. A mining electric shovel, comprising a top cover plate of the machine shed and an A-frame, characterized in that: It also includes the waterproof cover plate assembly for the A-frame tie rod of the mining electric shovel as described in any one of claims 1 to 9.

Images