Device for increasing the angle of the hopper and the tipping of a dump truck

Abstract

This utility model is a device for raising the hopper and increasing the tipping angle of a dump truck, solving the problem that the lifting height of the existing dump truck hopper is limited by the stroke of the hydraulic cylinder, resulting in insufficient hopper lifting height. The rear ends of the truck chassis and the hopper chassis are hinged together by a swivel support. The truck chassis and the hopper chassis are composed of a square frame and transverse and longitudinal partitions within the frame. A hydraulic cylinder is hinged to the truck chassis within the space formed by the first and second transverse partitions and the longitudinal partition. The first and second support legs fixed on the third transverse partition of the truck chassis are respectively hinged to the upper ends of the first and second push plates and one end of the first and second traction plates via a first pin. The other end of the first and second traction plates is hinged to the hopper chassis. The first pin is hinged to the upper end of the push rod of the hydraulic cylinder. There is a first bushing between the upper end of the push rod of the hydraulic cylinder and the upper end of the first and second push plates. There is a second bushing between the upper end of the first and second push plates and the lower end of the first and second traction plates.

Description

Technical Field

[0001] This utility model relates to the field of dump truck modification technology, specifically a device that improves the mechanical structure to raise the hopper and increase the tipping angle without changing the original hydraulic cylinder system. Background Technology

[0002] The lifting height of the existing dump truck hopper is limited by the stroke of the hydraulic cylinder. The insufficient lifting height of the hopper causes material to easily accumulate at the discharge port during unloading. Due to the limited turning angle, sticky materials are difficult to be completely unloaded. Traditional improvement solutions require replacing the hydraulic cylinder with one with a larger stroke or modifying the hydraulic system, which has the problems of high cost, damage to the original vehicle stability, and easy blockage of the discharge port, which seriously affects the operating efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a device for raising and tilting the hopper of a dump truck that is simple in structure, low in cost, and can increase the hopper height and tilting angle.

[0004] The purpose of this utility model is achieved as follows: The dump truck hopper lifting and tipping angle increasing device has a chassis 15 and a hopper chassis 16 with their rear ends hinged by a swivel support 1. The chassis 15 and the hopper chassis 16 are composed of a square frame and transverse and longitudinal partitions within the frame. The space between the first and second transverse partitions and the longitudinal partitions of the chassis 15 contains a hydraulic cylinder 12 that is hinged to the chassis 15. The first and second support legs 3 fixed on the third transverse partition of the chassis 15 are respectively hinged to the upper ends of the first and second push plates 11 and to one end of the first and second traction plates 5 via a first pin 13. The other end of the first and second traction plates 5 is hinged to the hopper chassis 16. The first pin 13 is hinged to the upper end of the push rod of the hydraulic cylinder 12. There is a first bushing between the upper end of the push rod of the hydraulic cylinder 12 and the upper end of the first and second push plates 11. There is a second bushing between the upper end of the first and second push plates 11 and the lower end of the first and second traction plates 5.

[0005] The first and second push plates are arc-shaped plates. In the transportation condition, the angle between the first and second push plates and the chassis is less than 15 degrees, the distance between the upper end of the first and second push plates and the chassis is less than 20 centimeters, the support (20) of the hopper chassis is in contact with the upper part of the chassis, the angle between the first and second push plates and the first and second traction plates is less than 30 degrees, and in the unloading condition, the angle between the first and second push plates and the chassis is greater than 60 degrees, and the angle between the push rod of the oil cylinder and the first and second traction plates is greater than 140 degrees. The beneficial effects of this utility model are: 1. The hopper lifting device in this utility model does not replace the original hydraulic system. It breaks through the traditional lifting method and innovatively adopts the diving lifting principle. The lifting parameters can be precisely controlled by changing the push-pull combination structure, thus solving industry problems.

[0006] 2. This utility model, while ensuring that the original hydraulic cylinder system and vehicle stability are not changed, adds a push-pull combination mechanical structure. In the unloading situation, the angle between the first and second push plates and the chassis is greater than 60 degrees, and the angle between the cylinder push rod and the first and second traction plates is greater than 140 degrees. This achieves the increase in hopper height and tilting angle at a lower cost, thereby improving unloading efficiency and reducing the amount of sticky material residue.

[0007] 3. This utility model can be implemented at a lower cost than the existing technology, and is easy to maintain and repair. It has high operating efficiency, wide applicability, and guaranteed heavy-duty service life and operational stability. It is especially suitable for the rapid unloading of viscous materials. Attached Figure Description

[0008] Figure 1 This is a structural diagram of the present invention in a dump truck.

[0009] Figure 2 This is a structural diagram of the present invention. Detailed Implementation The dump truck hopper lifting and tipping angle increasing device has a chassis 15 and a hopper chassis 16 with their rear ends hinged by a swivel support 1. The chassis 15 and the hopper chassis 16 are composed of a square frame and transverse and longitudinal partitions within the frame. The space between the first and second transverse partitions and the longitudinal partitions of the chassis 15 contains a hydraulic cylinder 12 that is hinged to the chassis 15. The first and second support legs 3 fixed on the third transverse partition of the chassis 15 are respectively hinged to the upper ends of the first and second push plates 11 and to one end of the first and second traction plates 5 via a first pin 13. The other end of the first and second traction plates 5 is hinged to the hopper chassis 16. The first pin 13 is hinged to the upper end of the push rod of the hydraulic cylinder 12. There is a first bushing between the upper end of the push rod of the hydraulic cylinder 12 and the upper end of the first and second push plates 11. There is a second bushing between the upper end of the first and second push plates 11 and the lower end of the first and second traction plates 5.

[0010] The first and second push plates are arc-shaped plates. In the transportation state, the angle between the first and second push plates and the chassis is 14 degrees, the distance between the upper part of the first and second push plates and the chassis is 19 centimeters, the support 20 of the hopper chassis is in contact with the top of the chassis, and the angle between the first and second push plates and the first and second traction plates is 25 degrees. In the unloading state, the angle between the first and second push plates and the chassis is 70 degrees, and the angle between the cylinder push rod and the first and second traction plates is 150 degrees. The two outriggers 3 are fixed to the middle of the original frame crossbeam-transverse partition by welding, and then connected to the traction plate 5 by pins to form an outrigger support structure.

[0011] The hopper chassis 16 support structure is based on the original hopper lifting height of the push-pull combination structure. Three support blocks 20 (I-beams) are welded to the longitudinal beams on both sides of the hopper chassis 16 at a distance of 260mm on each side. The hopper rotating seat support 1 is formed by cutting the original hopper rotating seat support base, grinding the cut surface flat, and machining a hopper rotating seat support of appropriate size according to the hopper lifting height. It is then fixed to the original base by welding to form the hopper rotating seat support.

Claims

1. A device for increasing the angle of lift and roll of a dump truck hopper, the device comprising: The rear ends of the chassis (15) and the hopper chassis (16) are hinged by a pivot support (1). The chassis and the hopper chassis are composed of a square frame and transverse and longitudinal partitions within the square frame. The space formed by the first and second transverse partitions and the longitudinal partitions of the chassis contains a hydraulic cylinder (12) which is hinged to the chassis (15). The first and second legs (3) fixed on the third transverse partition of the chassis are respectively hinged to the lower ends of the first and second push plates (11). The upper ends of the first and second push plates (11) are hinged to the lower ends of the first and second traction plates (5) through a pin (13). The upper ends of the first and second traction plates are hinged to the front of the hopper chassis. The pin is hinged to the upper end of the push rod of the hydraulic cylinder. There is a first bushing between the upper end of the push rod of the hydraulic cylinder and the upper end of the first and second push plates. There is a second bushing between the upper end of the first and second push plates and the lower end of the first and second traction plates.

2. The dump truck hopper raising and roll over angle increasing device of claim 1, wherein, The first and second push plates are arc-shaped plates. In the transportation condition, the angle between the first and second push plates and the chassis is less than 15 degrees, the distance between the upper end of the first and second push plates and the chassis is less than 20 centimeters, the support (20) of the hopper chassis is in contact with the upper part of the chassis, the angle between the first and second push plates and the first and second traction plates is less than 30 degrees, and in the unloading condition, the angle between the first and second push plates and the chassis is greater than 60 degrees, and the angle between the push rod of the oil cylinder and the first and second traction plates is greater than 140 degrees.

Images