Protective device for tail pipe of mining heavy-duty truck

Abstract

The utility model relates to an exhaust tail pipe protection device for a mining heavy-duty truck, which comprises a platform edge beam, an exhaust tail pipe and a silencer, and is characterized by further comprising a hoop, a hanging bracket seat, an exhaust tail pipe connecting pipe fitting and an exhaust tail pipe protection component, the silencer hoop is connected with the lower transverse surface of the platform boundary beam; the exhaust tail pipe connecting pipe fitting comprises an exhaust tail pipe mounting body arranged at the end part of the silencer, a limiting pin and a return spring; the exhaust tail pipe protection assembly is composed of a protection cover plate vertical plate and a protection cover plate inclined plate integrally formed with the protection cover plate vertical plate, a strip-shaped bolt fixing hole is formed in the left side of the protection cover plate vertical plate, and the protection cover plate vertical plate is fixed to the vertical face of the platform edge beam through a fixing screw A and a fixing screw B; and the fixing screws A and the fixing screws B are arranged at intervals. The device has the advantages that the exhaust tail pipe can be effectively prevented from being smashed and deformed by falling goods fragments of the bucket of the electric shovel, the good working state of the exhaust tail pipe is guaranteed, and the vehicle maintenance time and labor intensity are reduced.

Description

Technical Field

[0001] This utility model relates to heavy-duty mining trucks, and more particularly to a protective device for the exhaust tailpipe of heavy-duty mining trucks. Background Technology

[0002] Heavy-duty mining dump trucks used in metallurgical production have high-powered engines. Due to safety and environmental considerations, and to prevent exhaust fumes from irritating the truck body, the exhaust tailpipe, mounted on the muffler, protrudes beyond the cab platform, extending beyond the outer edge of the truck bed. This design frequently results in the exhaust tailpipe being damaged, deformed, or even detached by debris falling from the electric shovel bucket during loading operations. This not only poses a safety hazard but also alters the engine's exhaust direction, increases exhaust noise, and harms the driver's health. Furthermore, it increases vehicle maintenance time and the workload of maintenance personnel, impacting vehicle operating efficiency. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies and provide a protective device for the exhaust tailpipe of heavy-duty mining trucks. This effectively prevents the exhaust tailpipe from being damaged, deformed, or even detached by debris falling from the electric shovel bucket during loading, ensuring the exhaust tailpipe remains in good working order, improving vehicle efficiency, reducing exhaust noise, and decreasing vehicle maintenance time and the workload of maintenance personnel.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A protective device for the exhaust tailpipe of a heavy-duty mining vehicle includes a platform side beam, an exhaust tailpipe, and a muffler. It is characterized by further including a clamp, a hanger seat, an exhaust tailpipe connecting fitting, and an exhaust tailpipe protective assembly. The clamp is fitted onto the muffler, and the hanger seat is connected to the lower horizontal surface of the platform side beam. The clamp is fixed to the hanger seat by bolts. The exhaust tailpipe connecting fitting includes an exhaust tailpipe mounting body, a limiting pin, and a return spring, all located at the end of the muffler. The exhaust tailpipe consists of a straight section and a curved section. The end of the straight section is placed within the exhaust tailpipe mounting body. A rectangular guide limiting groove is formed on the straight section of the exhaust tailpipe. Both ends of the limiting pin pass through the rectangular guide limiting groove of the straight section and are radially slidably connected to the wall of the exhaust tailpipe mounting body. A limiting stop is provided on the outside of the straight section. The return spring A is fitted onto the exhaust tailpipe mounting body, with one end fixed to the muffler and the other end fixed to the outside of the limiting stop on the exhaust tailpipe.

[0006] The exhaust tailpipe protection assembly consists of a protective cover plate upright and a protective cover plate inclined plate integrally formed with the protective cover plate upright. A strip bolt fixing hole is opened on the left side of the protective cover plate upright. The protective cover plate upright is fixed to the platform side beam vertical surface by fixing screw A and fixing screw B, and fixing screw A and fixing screw B are spaced apart.

[0007] As a further description of the above technical solution: the protective cover plate extends outward and downward at an angle, and is installed at the same angle as the curved section of the exhaust tailpipe.

[0008] As a further description of the above technical solution: the fixing screw A passes through the protective cover plate and the platform side beam from the outside and is fixedly connected to the protective cover plate and the platform side beam by a nut. The fixing screw B is a spring-loaded bolt that passes through the strip bolt fixing hole on the platform side beam and the protective cover plate from the inside and is fixedly connected to the protective cover plate and the platform side beam by a nut. The fixing screws A and B are spaced apart.

[0009] This utility model has the following beneficial effects:

[0010] By designing the "Exhaust Tailpipe Protection Device for Mining Heavy-Duty Trucks" of this utility model, it is possible to effectively prevent the exhaust tailpipe of mining heavy-duty trucks from being damaged, deformed, or even falling off by the falling cargo fragments from the electric shovel bucket during loading. This ensures that the exhaust tailpipe is in good working condition, improves vehicle efficiency, reduces exhaust noise, and reduces vehicle maintenance time and the labor intensity of maintenance personnel. Attached Figure Description

[0011] Figure 1 Front view of the exhaust tailpipe protection device for heavy-duty mining trucks;

[0012] Figure 2 Side view of the exhaust tailpipe protection device for heavy-duty mining trucks. Detailed Implementation

[0013] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0014] Please refer to Figures 1-2As shown, this utility model discloses a protective device for the exhaust tailpipe of a heavy-duty mining vehicle, comprising a platform side beam, an exhaust tailpipe, and a muffler 2. Its features include a clamp 1, a hanger seat 7, an exhaust tailpipe connecting fitting, and an exhaust tailpipe protective assembly. The clamp 1 is fitted onto the muffler 2, and the hanger seat 7 is connected to the lower horizontal surface 71 of the platform side beam. The clamp 1 is fixed to the hanger seat 7 by bolts. The exhaust tailpipe connecting fitting includes an exhaust tailpipe mounting body 3, a limiting pin 6, and a return spring A4 disposed at the end of the muffler 2. The exhaust tailpipe is constructed from... straight pipe section 52 and bend section 51 The exhaust tailpipe consists of a curved section 52 and a straight section 51, the ends of which are placed inside the exhaust tailpipe mounting body 3. A rectangular guide and limiting groove 54 is opened on the straight section 51 of the exhaust tailpipe. The two ends of the limiting pin 6 pass through the rectangular guide and limiting groove 54 of the straight section 51 and are radially slidably connected to the pipe wall of the exhaust tailpipe mounting body 3. A limiting stop 53 is provided on the outside of the straight section 51. The return spring A4 is fitted on the exhaust tailpipe mounting body 3, with one end fixed to the muffler 2 and the other end fixed to the limiting stop 53 of the exhaust tailpipe.

[0015] The exhaust tailpipe protection assembly consists of a protective cover plate 8 and a protective cover plate inclined plate 9 integrally formed with the protective cover plate 8. A strip bolt fixing hole 81 is opened on the left side of the protective cover plate 8. The protective cover plate 10 is fixed to the platform side beam facade 72 by fixing screws A10 and B11, and fixing screws A10 and B11 are spaced apart.

[0016] The protective cover plate 9 of this utility model extends outward and downward at an angle, and is installed at the same angle as the curved section 52 of the exhaust tailpipe.

[0017] The fixing screw A10 passes through the protective cover plate 8 and the platform side beam facade 72 from the outside, and is fixedly connected to the protective cover plate 8 and the platform side beam by a nut. The fixing screw B11 is a fixing bolt with a return spring B12, which passes through the platform side beam facade 72 and the strip bolt fixing hole 81 on the protective cover plate 8 from the inside, and is fixedly connected to the protective cover plate 8 and the platform side beam by a nut. The fixing screws A10 and B11 are spaced apart. The asymmetrical double-bolt fixing design of fixing screws A10 and B11 serves to guide and constrain the degrees of freedom of the protective cover plate inclined plate 9 and the protective cover plate 8.

[0018] The protective cover plate 9 decomposes the gravity of the falling debris from the bucket into a component force perpendicular to the protective cover plate 9 and a component force parallel to the protective cover plate 9, thereby reducing the damage to the protective cover plate 9 caused by the falling debris from the bucket. The load borne by the fixing screw A10, platform side beam, and fixing screw B11 further improves the function of protecting the exhaust tailpipe 5.

[0019] When the torque generated by the gravity of the falling fragments is less than the torque generated by the return spring B12, the inclined plate 9 and the upright plate 8 of the protective cover remain stationary relative to the exhaust tailpipe 5. When the torque is greater than the torque generated by the return spring B12, the inclined plate 9 and the upright plate 8 of the protective cover will rotate against the spring force of the return spring B12, tilting downwards and transferring part of the force to the exhaust tailpipe 5. The exhaust tailpipe 5 then retracts into the exhaust tailpipe mounting body 3 against the spring force of the return spring A4, and the guide limiting groove 54 and the limiting pin 6 generate relative displacement. Finally, the exhaust tailpipe 5 is limited, realizing the conversion of potential energy and kinetic energy.

[0020] After the weight of the falling cargo fragments disappears, the protective cover plate 9, the protective cover plate 8, and the exhaust tailpipe 5 return to their original positions under the action of the return springs B12 and A4, respectively.

Claims

1. A protective device for the exhaust tailpipe of a heavy-duty mining vehicle, comprising a platform side beam, an exhaust tailpipe, and a muffler, characterized in that, It also includes clamps, hanger seats, exhaust tailpipe connecting fittings, and exhaust tailpipe protective components; the clamps are fitted onto the muffler, the hanger seats are connected to the lower horizontal surface of the platform side beam, and the clamps are fixed to the hanger seats by bolts; the exhaust tailpipe connecting fittings include an exhaust tailpipe mounting body, a limiting pin, and a return spring, all located at the end of the muffler; the exhaust tailpipe consists of a straight pipe section and a curved pipe section; the end of the straight pipe section of the exhaust tailpipe is placed inside the exhaust tailpipe mounting body; a rectangular guide limiting groove is opened on the straight pipe section of the exhaust tailpipe; both ends of the limiting pin pass through the rectangular guide limiting groove of the straight pipe section and are radially slidably connected to the pipe wall of the exhaust tailpipe mounting body; a limiting stop is provided on the outside of the straight pipe section; the return spring A is fitted onto the exhaust tailpipe mounting body, one end is fixed to the muffler, and the other end is fixed to the outside of the limiting stop of the exhaust tailpipe; The exhaust tailpipe protection assembly consists of a protective cover plate upright and a protective cover plate inclined plate integrally formed with the protective cover plate upright. A strip bolt fixing hole is opened on the left side of the protective cover plate upright. The protective cover plate upright is fixed to the platform side beam vertical surface by fixing screw A and fixing screw B, and fixing screw A and fixing screw B are spaced apart.

2. The exhaust tailpipe protection device for heavy-duty mining vehicles according to claim 1, characterized in that: The protective cover plate extends outward and downward at an angle, and is installed at the same angle as the curved section of the exhaust tailpipe.

3. The exhaust tailpipe protection device for heavy-duty mining vehicles according to claim 1, characterized in that: The fixing screw A passes through the protective cover plate and the platform side beam from the outside and is fixedly connected to the protective cover plate and the platform side beam by a nut. The fixing screw B is a spring-loaded bolt that passes through the strip bolt fixing hole on the platform side beam and the protective cover plate from the inside and is fixedly connected to the protective cover plate and the platform side beam by a nut.

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