A belt guard for an excavator

Abstract

The utility model provides a rubber belt protection device for the earth -moving machine, is equipped with in pairs in the rubber belt both sides of earth -moving machine, include: upper fixed base, lower fixed base, cylinder and gyro wheel axle, upper fixed base with lower fixed base is fixed respectively in the rack of earth -moving machine, gyro wheel axle is fixed between upper fixed base with lower fixed base, the outer periphery of gyro wheel axle with cylinder rotation connection, cylinder is coaxial with gyro wheel axle links to each other, and the outer periphery of cylinder with the narrow surface of rubber belt of earth -moving machine is opposite and is provided, when rubber belt is off -centre and leaves earth -moving machine, the radial force of cylinder is cancelled through circumferential rotation with rubber belt. The utility model is equipped with gyro wheel axle respectively in the both sides of earth -moving machine, and the cylinder is rotatably equipped on each gyro wheel axle, when the phenomenon of rubber belt deviation occurs, the outer peripheral surface of cylinder can offset the radial force of rubber belt, thereby guaranteeing that the earth -moving machine will not have the accident of rubber belt off -centre.

Description

Technical Field

[0001] This utility model relates to the technical field, and in particular to a tape protection device for a soil dumping machine. Background Technology

[0002] In the material conveying operation of a dumper, the conveyor belt is a core transmission component, but it is prone to deviation during operation, leading to a series of serious malfunctions. A misaligned conveyor belt will experience severe sliding friction with the beams on both sides of the tension drum at the tail of the dumper, directly causing the belt edges to wear off and break, damaging the integrity of the belt's internal structure, and ultimately easily inducing belt tearing accidents. This not only significantly shortens the belt's lifespan but also causes substantial economic losses. Each malfunction requires replacing 200 meters of new belt, with the belt purchase cost alone reaching 200,000 yuan. Adding the labor costs for disassembly and assembly and the cost of rubber materials, the direct cost of a single repair exceeds 300,000 yuan. More seriously, the replacement process requires at least four days of production downtime, during which 160,000 to 180,000 cubic meters of output will be lost, equivalent to an economic loss of approximately 807,500 yuan. These comprehensive losses severely impact production efficiency and profitability. Utility Model Content

[0003] To address the potential problems of existing spoil heaps during operation as described in the background section, this utility model proposes the following technical solution:

[0004] A conveyor belt protection device for a spoil disposal machine, arranged in pairs on both sides of the conveyor belt, includes: an upper fixed seat, a lower fixed seat, a roller, and a roller shaft; the upper fixed seat and the lower fixed seat are respectively fixed on the frame of the spoil disposal machine; the roller shaft is fixed between the upper fixed seat and the lower fixed seat, and the outer circumference of the roller shaft is rotatably connected to the roller; the roller is coaxially connected to the roller shaft, and the outer circumference of the roller is opposite to the narrow side of the conveyor belt of the spoil disposal machine; when the conveyor belt deviates from the spoil disposal machine, the roller counteracts the radial force of the conveyor belt by circumferential rotation.

[0005] The upper fixed seat includes: an upper base, an upper cover plate, and an upper limit stop; the upper base is provided with an upper limit groove that matches the roller shaft; the upper base and the upper cover plate are connected by a connector to hold one end of the roller shaft in the upper limit groove; one end of the limit stop passes through the upper limit groove and one end of the roller shaft in sequence to limit one side of the roller shaft in the upper limit groove.

[0006] Furthermore, the lower fixing seat includes: a lower base, a lower cover plate, and a lower limiting bolt; the lower base is provided with a lower limiting groove that matches the roller shaft, and the lower base and the lower cover plate are connected by a connector to hold one end of the roller shaft in the lower limiting groove; one end of the limiting bolt passes through the lower limiting groove and one end of the roller shaft in sequence to limit the roller shaft in the lower limiting groove.

[0007] Furthermore, the roller shaft is provided with a first mounting hole that matches the upper limit bolt and a second mounting hole that matches the lower limit bolt at both ends.

[0008] Furthermore, bearing seats are provided at both ends of the roller, the inner ring of the bearing seat is fixedly connected to the outer circumference of the roller shaft, and the outer ring of the bearing seat is fixedly connected to the inner wall of the end of the roller.

[0009] Furthermore, the roller shaft is inclined relative to the narrow side of the conveyor belt of the soil dumping machine.

[0010] Beneficial effects: This utility model has roller shafts fixed on both sides of the soil dumping machine, and each roller shaft has a roller that can rotate. When the conveyor belt deviates, the outer circumference of the roller can cancel the radial force of the conveyor belt, thereby ensuring that the soil dumping machine will not have a conveyor belt misalignment accident. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a conveyor belt protection device for a soil dumping machine according to an embodiment of the present invention. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of this application clearer, the present invention will be described in further detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the present invention.

[0013] It should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., 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 patent 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 patent.

[0014] Figure 1 This is a schematic diagram of a conveyor belt protection device for a soil dumping machine according to an embodiment of the present invention.

[0015] Reference Figure 1A conveyor belt protection device for a spoil disposal machine according to an embodiment of the utility model includes: an upper fixed seat 1, a lower fixed seat 2, a roller 3, and a roller shaft 4. The upper fixed seat 1 and the lower fixed seat 2 are respectively fixed to the frame of the spoil disposal machine by bolts or other connecting components. The roller shaft 4 is located between the upper fixed seat 1 and the lower fixed seat 2, and its outer circumference is rotatably connected to the roller 3. The roller 3 and the roller shaft 4 are coaxially connected, and the outer circumference of the roller 3 is positioned opposite the narrow side of the conveyor belt of the spoil disposal machine. When the conveyor belt deviates from the spoil disposal machine, the roller 3 counteracts the radial force of the conveyor belt through its circumferential rotation, thereby preventing the conveyor belt from tearing due to deviation from the frame of the spoil disposal machine.

[0016] Specifically, the upper fixed seat 1 includes: an upper base 11, an upper cover plate 12, and an upper limit bolt 13. The upper base 11 has a recessed upper limit groove 111. The upper base 11 and the upper cover plate 12 are connected by a connector to clamp and limit the roller shaft 4 within the upper limit groove 111. Both ends of the upper limit groove 111 are connected to the outside, and both ends of the roller shaft 4 pass through corresponding limiting grooves (i.e., the upper limit groove 111 and the lower limit groove 211) and are connected to the outside. Furthermore, the upper fixed seat 1 and the lower fixed seat 2 are symmetrical about the centerline of the roller shaft 4. Similarly, the lower fixed seat 2 includes: a lower base 21, a lower cover plate 22, and a lower limit bolt 23. The lower base 21 and the upper base 11 are relatively distributed, located next to the conveyor belt on the same side of the excavator. The lower base 21 is located below the upper base 11, and the lower base 21 has a recessed lower limit groove 211. The upper limit stop 13 and the lower limit stop 23 are respectively inserted into one end of the roller shaft 4, thereby limiting the roller shaft 4 between the upper base 11 and the lower base 21. The two ends of the roller shaft 4 are respectively provided with a first mounting hole 41 and a second mounting hole 42 that match the upper limit stop 13 and the lower limit stop 23.

[0017] Furthermore, bearing seats 31 are provided at both ends of the roller 3. Each bearing seat 31 is located at the end of the roller 3, and the inner ring of each bearing seat 31 is fixedly connected to the outer circumference of the roller shaft 4, while the outer ring of each bearing seat 31 is fixedly connected to the inner wall of the end of the roller 3. When the outer circumference of the roller 3 is subjected to the radial movement force of the conveyor belt of the excavator, it begins to generate a circumferential rotation effect, thereby further counteracting the movement deviation of the conveyor belt of the excavator.

[0018] During operation, a set of belt protection devices is installed on both sides of the conveyor belt of the dumper to ensure that the belt will come into contact with the belt protection device if it deviates during operation. The roller shafts 4 of each set of belt protection devices are set facing each other, and the roller shafts 4 of each set of belt protection devices are inclined to the narrow side of the conveyor belt of the dumper.

[0019] In summary, this utility model has roller shafts fixed on both sides of the soil dumping machine, and each roller shaft has a rotatable roller. When the conveyor belt deviates, the outer circumferential surface of the roller can cancel the radial force of the conveyor belt, thereby ensuring that the soil dumping machine will not have a conveyor belt misalignment accident.

[0020] The above description describes specific embodiments of the utility model. Other embodiments are within the scope of the appended claims.

[0021] The terms “exemplary,” “example,” etc., used throughout this specification mean “serving as an example, instance, or illustration” and do not imply “preferred” or “advantageous” than other embodiments. Detailed descriptions are included for the purpose of providing an understanding of the described techniques. However, these techniques can be practiced without these detailed descriptions. In some instances, well-known structures and apparatuses are shown in block diagram form to avoid obscuring the concepts of the described embodiments.

[0022] The optional embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the embodiments of the present utility model are not limited to the specific details in the above embodiments. Within the scope of the technical concept of the embodiments of the present utility model, various simple modifications can be made to the technical solutions of the embodiments of the present utility model, and these simple modifications all fall within the protection scope of the embodiments of the present utility model.

[0023] The foregoing description of this specification is provided to enable any person skilled in the art to implement or use the content of this specification. Various modifications to the content of this specification will be apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the scope of protection of this specification. Therefore, this specification is not limited to the examples and designs described herein, but is consistent with the widest scope of the principles and novel features disclosed herein.

Claims

1. A conveyor belt protection device for a dumping machine, wherein the device is installed in pairs on both sides of the conveyor belt of the dumping machine, characterized in that, include: The machine comprises an upper fixed seat (1), a lower fixed seat (2), a roller (3), and a roller shaft (4); the upper fixed seat (1) and the lower fixed seat (2) are respectively fixed on the frame of the excavator; the roller shaft (4) is fixed between the upper fixed seat (1) and the lower fixed seat (2), and the outer circumference of the roller shaft (4) is rotatably connected to the roller (3); the roller (3) is coaxially connected to the roller shaft (4), and the outer circumference of the roller (3) is opposite to the narrow surface of the conveyor belt of the excavator; when the conveyor belt deviates from the excavator, the roller (3) counteracts the radial force of the conveyor belt by circumferential rotation.

2. The conveyor belt protection device for a dump truck according to claim 1, characterized in that, The upper fixed seat (1) includes: an upper base (11), an upper cover plate (12), and an upper limit stop (13); the upper base (11) is provided with an upper limit groove (111) that matches the roller shaft (4); the upper base (11) and the upper cover plate (12) are connected by a connector to hold one end of the roller shaft (4) in the upper limit groove (111); one end of the upper limit stop (13) passes through the upper limit groove (111) and one end of the roller shaft (4) in sequence to limit one side of the roller shaft (4) in the upper limit groove (111).

3. A conveyor belt protection device for a dump truck according to claim 2, characterized in that, The lower fixed seat (2) includes: a lower base (21), a lower cover plate (22), and a lower limit bolt (23); the lower base (21) is provided with a lower limit groove (211) that matches the roller shaft (4); the lower base (21) and the lower cover plate (22) are connected by a connector to hold one end of the roller shaft (4) in the lower limit groove (211); one end of the lower limit bolt (23) passes through the lower limit groove (211) and one end of the roller shaft (4) in sequence to limit the roller shaft (4) in the lower limit groove (211).

4. A conveyor belt protection device for a dump truck according to claim 3, characterized in that, The roller shaft (4) is provided with a first mounting hole (41) that matches the upper limit bolt (13) and a second mounting hole (42) that matches the lower limit bolt (23) at both ends.

5. A conveyor belt protection device for a dump truck according to claim 4, characterized in that, The roller (3) is provided with bearing seats (31) at both ends. The inner ring of the bearing seat (31) is fixedly connected to the outer circumference of the roller shaft (4), and the outer ring of the bearing seat (31) is fixedly connected to the inner wall of the end of the roller (3).

6. A conveyor belt protection device for a dump truck according to claim 4, characterized in that, The roller shaft (4) is inclined relative to the narrow side of the conveyor belt of the soil dumping machine.

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