Protective device for rotating part of engineering machinery

Abstract

The utility model provides an engineering machinery rotating part protective device which comprises an upper belt protective cover, a lower belt protective cover is arranged on the lower side of the upper belt protective cover, upper U-shaped frames are installed at the two ends of the upper belt protective cover, lower U-shaped frames are arranged on the lower sides of the upper U-shaped frames, the lower U-shaped frames are fixedly connected with the lower belt protective cover, and the lower belt protective cover is fixedly connected with the lower U-shaped frames. The two parallel side faces of the upper U-shaped frame are each provided with a plurality of upper penetrating holes, the two parallel side faces of the lower U-shaped frame are each provided with a plurality of lower penetrating holes, screws are inserted into channels formed by the upper penetrating holes and the lower penetrating holes, one ends of the screws are in threaded connection with nuts, the nuts are arranged in the lower U-shaped frame, and the upper penetrating holes are communicated with the lower penetrating holes. A batten is arranged on the side, deviating from the lower U-shaped frame, of the upper U-shaped frame, the screws penetrate through the batten, one end of the batten is fixedly connected with a lug plate, and a plurality of fixing holes for bolts to penetrate through are formed in one side face of the lug plate.

Description

Technical Field

[0001] This utility model is a protective device for rotating parts of engineering machinery, belonging to the field of protective covers. Background Technology

[0002] As a crucial protective measure for rotating parts of construction machinery, belt guards typically consist of two interconnected covers. By completely concealing the drive belt within their interior space, they form a physical barrier, effectively preventing personnel from contacting rotating components and causing accidents. During assembly, the two covers are connected using multiple sets of screws and nuts as fasteners. For example, screws are inserted into evenly distributed connecting holes along the edges of the covers, and nuts are tightened to ensure a tight seal. Furthermore, the entire belt guard needs to be secured to a supporting carrier (such as an equipment frame or drive shaft bracket) using additional bolts. Specifically, corresponding mounting holes are drilled in the supporting carrier, and bolts are used to secure the guard to the carrier. However, this traditional installation method has significant drawbacks: firstly, the large number of fasteners increases the complexity and time cost of assembly; secondly, excessive fasteners complicate subsequent maintenance, requiring the removal of numerous screws during drive belt maintenance, significantly reducing maintenance efficiency. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a protective device for the rotating parts of engineering machinery to solve the problems mentioned in the background technology. This utility model reduces the number of fasteners used and improves the efficiency of disassembly and assembly.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a protective device for rotating parts of engineering machinery, comprising an upper belt protective cover, a lower belt protective cover below the upper belt protective cover, upper U-shaped frames installed at both ends of the upper belt protective cover, a lower U-shaped frame below the upper U-shaped frame, the lower U-shaped frame being connected and fixed to the lower belt protective cover, multiple upper through holes on two parallel sides of the upper U-shaped frame, multiple lower through holes on two parallel sides of the lower U-shaped frame, a screw inserted into the channel formed by the upper and lower through holes, a nut threaded to one end of the screw, the nut being located inside the lower U-shaped frame, a strip on the side of the upper U-shaped frame away from the lower U-shaped frame, the screw passing through the strip, an ear plate connected and fixed to one end of the strip, and multiple fixing holes for inserting bolts on one side of the ear plate.

[0005] Furthermore, a horizontal plate is provided on the side of the strip away from the upper U-shaped frame, and a limiting plate is installed at the end of the horizontal plate near the ear plate, which contacts one side of the bolt head, and the screw passes through the horizontal plate.

[0006] Furthermore, one side of the slat has a plurality of round holes evenly distributed, and one side of the cross plate has a plurality of through holes aligned with the round holes, and the screw passes through the channel formed by the through holes and the round holes.

[0007] Furthermore, the limiting plate and the horizontal plate are integrally formed, and the limiting plate and the horizontal plate are arranged perpendicular to each other.

[0008] Furthermore, the ear plate and the slats are integrally formed, and the ear plate and the slats are arranged perpendicular to each other.

[0009] Furthermore, both the side of the upper belt guard facing away from the lower belt guard and the side of the lower belt guard facing away from the upper belt guard have rectangular openings, and a first protective net is installed inside the rectangular openings.

[0010] Furthermore, ventilation openings are machined on the two sides of the upper belt guard adjacent to the rectangular opening, and on the two sides of the lower belt guard adjacent to the rectangular opening, and a second protective net is installed inside the ventilation opening.

[0011] The beneficial effects of this utility model are:

[0012] 1. When using screws and nuts to fasten the relative positions of the upper and lower belt guards, the screws pass through the strips. This allows the screws and nuts to fasten the relative positions of the upper and lower belt guards while simultaneously limiting the position of the ear plate. This eliminates the need for additional fasteners to fasten the ear plate to the relative positions of the ear plate and the upper or lower belt guard, reducing the number of fasteners used and improving assembly and disassembly efficiency.

[0013] 2. After the screw passes through the upper U-shaped frame and extends into the lower U-shaped frame, tighten the nut. Under the restriction of the upper U-shaped frame, part of the screw is exposed. When the screw and nut cannot be separated normally due to rust, the screw can be cut off using the space inside the upper U-shaped frame, which facilitates the smooth separation of the upper belt guard and the lower belt guard.

[0014] 3. When using fasteners formed by screws and nuts to limit the relative position of the plate strip and the upper U-shaped frame, the same fasteners formed by screws and nuts are used to limit the relative position of the horizontal plate and the upper U-shaped frame. At this time, the limiting plate is in contact with one side of the bolt head in the fixing hole. Thus, under the obstruction of the limiting plate, the probability of the bolt in the fixing hole loosening and falling off due to vibration is reduced, thereby improving reliability. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1This is a schematic diagram of the structure of a protective device for rotating parts of engineering machinery according to the present invention;

[0017] Figure 2 This is another perspective view of the protective device for rotating parts of engineering machinery according to the present invention;

[0018] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 4 This is a schematic diagram of the assembly of the limiting plate and the horizontal plate in a protective device for rotating parts of engineering machinery according to the present invention.

[0020] In the diagram: 1-Upper belt protective cover, 2-First protective net, 3-Second protective net, 4-Lower belt protective cover, 5-Strip, 6-Upper U-shaped frame, 7-Screw, 8-Nut, 9-Lower U-shaped frame, 10-Limiting plate, 11-Ear plate, 12-Fixing hole, 13-Horizontal plate, 14-Through hole. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please see Figure 1 and Figure 3 This utility model provides a technical solution: a protective device for rotating parts of engineering machinery, including an upper belt protective cover 1, a lower belt protective cover 4 provided on the lower side of the upper belt protective cover 1, and rectangular openings on the side of the upper belt protective cover 1 away from the lower belt protective cover 4 and the side of the lower belt protective cover 4 away from the upper belt protective cover 1. A first protective net 2 is installed in the rectangular opening. Ventilation openings are processed on the two sides of the upper belt protective cover 1 adjacent to the rectangular opening and the two sides of the lower belt protective cover 4 adjacent to the rectangular opening. A second protective net 3 is installed in the ventilation opening. The first protective net 2 and the second protective net 3 facilitate observation of the working status of the transmission belt without affecting the shielding effect.

[0023] See Figures 1-3Both ends of the upper belt protective cover 1 are equipped with upper U-shaped frames 6, and a lower U-shaped frame 9 is provided on the lower side of the upper U-shaped frame 6. The lower U-shaped frame 9 is connected and fixed to the lower belt protective cover 4. Multiple upper through holes are opened on the two parallel sides of the upper U-shaped frame 6, and multiple lower through holes are opened on the two parallel sides of the lower U-shaped frame 9. Screws 7 are inserted into the channel formed by the upper and lower through holes. A nut 8 is threaded to one end of the screw 7. The nut 8 is set in the lower U-shaped frame 9. A strip 5 is provided on the side of the upper U-shaped frame 6 away from the lower U-shaped frame 9. The screw 7 passes through the strip 5. An ear plate 11 is connected and fixed to one end of the strip 5. Multiple fixing holes 12 for inserting bolts are opened on one side of the ear plate 11. The ear plate 11 and the strip 5 are integrally formed. The ear plate 11 and the strip 5 are arranged perpendicular to each other. The screw 7 and the nut 8 form a tight connection. When the fastener restricts the relative position of the upper belt guard 1 and the lower belt guard 4, the screw 7 passes through the strip 5, thereby using the fastener formed by the screw 7 and the nut 8 to restrict the relative position of the upper belt guard 1 and the lower belt guard 4 while simultaneously restricting the position of the ear plate 11. There is no need to use other fasteners to restrict the relative position of the ear plate 11 with the upper belt guard 1 or the lower belt guard 4, reducing the number of fasteners used and improving disassembly and assembly efficiency. After the screw 7 passes through the upper U-shaped frame 6 and extends into the lower U-shaped frame 9, the nut 8 is screwed on. Thus, under the restriction of the upper U-shaped frame 6, part of the screw 7 is exposed. When the screw 7 and the nut 8 cannot be properly separated due to corrosion, the space inside the upper U-shaped frame 6 can be used to cut off the screw 7, which facilitates the smooth separation of the upper belt guard 1 and the lower belt guard 4.

[0024] See Figures 1-4 A horizontal plate 13 is provided on the side of the slat 5 away from the upper U-shaped frame 6. A limiting plate 10 is installed on the end of the horizontal plate 13 near the ear plate 11, which contacts one side of the bolt head. The limiting plate 10 and the horizontal plate 13 are integrally formed and are arranged perpendicular to each other. Multiple round holes are evenly opened on one side of the slat 5, and multiple through holes 14 are opened on one side of the horizontal plate 13, which are aligned with the round holes. The screw 7 passes through the channel formed by the through holes 14 and the round holes. When the fastener formed by the screw 7 and the nut 8 restricts the relative position of the slat 5 and the upper U-shaped frame 6, the fastener formed by the screw 7 and the nut 8 also restricts the relative position of the horizontal plate 13 and the upper U-shaped frame 6. At this time, the limiting plate 10 is in contact with one side of the bolt head in the fixing hole 12. Thus, under the obstruction of the limiting plate 10, the probability of the bolt in the fixing hole 12 loosening and falling off due to vibration is reduced, thereby improving reliability.

[0025] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rotating part guard for an engineering machine comprising an upper belt guard shield (1) characterised in that: The lower side of the upper belt guard shield (1) is provided with a lower belt guard shield (4), both ends of the upper belt guard shield (1) are provided with an upper U-shaped frame (6), the lower side of the upper U-shaped frame (6) is provided with a lower U-shaped frame (9), the lower U-shaped frame (9) is connected and fixed with the lower belt guard shield (4), both parallel sides of the upper U-shaped frame (6) are provided with a plurality of upper through holes, both parallel sides of the lower U-shaped frame (9) are provided with a plurality of lower through holes, the channel formed by the upper through hole and the lower through hole is inserted with a screw (7), one end of the screw (7) is threadedly connected with a nut (8), the nut (8) is arranged in the lower U-shaped frame (9), one side of the upper U-shaped frame (6) away from the lower U-shaped frame (9) is provided with a batten (5), the screw (7) penetrates the batten (5), one end of the batten (5) is connected and fixed with an ear plate (11), a plurality of fixing holes (12) for penetrating bolts are formed in one side of the ear plate (11).

2. A construction machine swivel point guard according to claim 1, characterised in that: One side of the batten (5) away from the upper U-shaped frame (6) is provided with a horizontal plate (13), one end of the horizontal plate (13) close to the ear plate (11) is provided with a limiting plate (10) in contact with one side of the bolt head, the screw (7) penetrates the horizontal plate (13).

3. A construction machine swivel point guard according to claim 2, characterised in that: A plurality of round holes are uniformly formed in one side of the batten (5), a plurality of through holes (14) aligned with the round holes are formed in one side of the horizontal plate (13), the channel formed by the through hole (14) and the round hole is penetrated by the screw (7).

4. A construction machine swivel point guard according to claim 2, characterised in that: The limiting plate (10) and the horizontal plate (13) are an integral molding structure, and the limiting plate (10) and the horizontal plate (13) are arranged perpendicularly to each other.

5. A rotating part guard for a construction machine according to claim 1, characterized in that: The ear plate (11) and the batten (5) are an integral molding structure, and the ear plate (11) and the batten (5) are arranged perpendicularly to each other.

6. A rotating part shield for a construction machine according to claim 1, characterized in that: One side of the upper belt guard shield (1) away from the lower belt guard shield (4) and one side of the lower belt guard shield (4) away from the upper belt guard shield (1) are provided with a rectangular opening, and the rectangular opening is provided with a first protective net (2).

7. A construction machine swivel point guard according to claim 6, characterised in that: Both sides of the upper belt guard shield (1) adjacent to the rectangular opening and both sides of the lower belt guard shield (4) adjacent to the rectangular opening are provided with a ventilation opening, and the ventilation opening is provided with a second protective net (3).

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