Novel oil cylinder carriage portal frame connecting structure

Abstract

The utility model discloses a novel oil cylinder carriage portal frame connecting structure in the field of dumper oil cylinders, which comprises an oil cylinder body, a piston rod and a connecting bracket, the end part of the oil cylinder body is connected with a dumper, the connecting bracket is arranged corresponding to the piston rod, and the connecting bracket comprises an upper cross beam which is transversely arranged; lifting arms extending downwards are connected to the left end and the right end of the upper cross beam, mounting frames are arranged at the lower ends of the lifting arms, the mounting frames are rotationally connected with corresponding lifting supports welded to a carriage of the dumper through lifting pin shafts, and hinge holes are longitudinally formed in the upper cross beam; the upper end of a piston rod of the oil cylinder body is provided with a mounting hole allowing the longitudinal connecting pin shaft to penetrate through, the connecting pin shaft penetrates through the hinge hole, and the piston rod is hinged to the upper cross beam through the connecting pin shaft. The device can adapt to road surfaces with poor working conditions, improves stability, avoids rollover, and is good in applicability and convenient to install.

Description

Technical Field

[0001] The utility model belongs to the field of dump truck oil cylinders, and particularly relates to a novel oil cylinder carriage gantry connection structure. Background Art

[0002] A dump truck is a vehicle that unloads goods by itself through hydraulic or mechanical lifting. It is also called a tipper truck. It consists of components such as a vehicle chassis, a hydraulic lifting mechanism, a cargo compartment and a power take-off device.

[0003] The hydraulic lifting mechanism is generally a cylinder. The FE cylinder is a front-lift cylinder (single earring type). When installing the FE cylinder, the front plate of the dump truck box needs to be tilted forward or slotted. Compared with the traditional box, the design is more complicated and the cost is increased. When the dump truck is lifted, the cylinder supports the box with upper and lower brackets. When the dump truck box swings left and right, the cylinder cannot suppress its shaking well and it is easy to overturn. The FE cylinder needs to be connected to the upper bracket, which requires sufficient installation height. Affected by the height of the box, its adaptability is low. The FC cylinder is a front-lift cylinder (with an outer sleeve). Due to the limitation of the installation method, it cannot be directly switched with the FC cylinder. The problems are: 1. It can only adapt to roads with relatively good working conditions; 2. Poor stability and easy to overturn; 3. Poor applicability, the box needs special design; 4. High requirements for installation height. Utility Model Content

[0004] The utility model aims to provide a novel oil cylinder carriage gantry connection structure, which can adapt to poor working conditions of the road surface, improve stability, avoid rollover, has good applicability and is easy to install.

[0005] The purpose of the utility model is achieved as follows: a novel oil cylinder carriage gantry connection structure comprises an oil cylinder body and a piston rod, the end of the oil cylinder body is connected to a dump truck, and a connecting bracket is arranged corresponding to the piston rod, the connecting bracket comprises a laterally arranged upper cross beam, the left and right ends of the upper cross beam are connected to a lifting arm extending downward, a mounting bracket is arranged at the lower end of the lifting arm, the mounting bracket is rotatably connected to the corresponding lifting bracket welded on the carriage of the dump truck through a lifting pin shaft, a hinge hole is longitudinally opened on the upper cross beam, a mounting hole for accommodating the longitudinal connecting pin shaft to pass through is opened on the upper end of the piston rod of the oil cylinder body, the connecting pin shaft is arranged through the hinge hole, and the piston rod is hinged to the upper cross beam through the connecting pin shaft.

[0006] The utility model is used to connect the oil cylinder on the dump truck with the car body. The piston rod of the oil cylinder is connected to the upper crossbeam on the top of the gantry through a pin shaft. The lifting bracket is welded on the car body. The lower end of the oil cylinder body is hinged to the hinge seat on the dump truck, so that the piston rod of the oil cylinder can lift the car body by extension. Compared with the prior art, the beneficial effects of the utility model are: 1. When the oil cylinder is connected to the car body, the front plate of the car body does not need to be specially designed; 2. Compared with the traditional connection method of the FE oil cylinder, the left and right and front supports are added, which can effectively suppress the left and right shaking of the box body and reduce the probability of rollover; 3. Compared with the FC outer sleeve connection, it ensures the stability of the box body while avoiding scratches and strains between the oil cylinder body and the outer sleeve; 4. The gantry can be directly switched with the FC oil cylinder without adding additional processes, and has a wide range of applicability.

[0007] As a further improvement of the utility model, the upper cross beam includes two parallel beam plates, the upper ends of the two lifting arms extend into the left and right sides between the two beam plates and are fixed to the inner walls of the beam plates, and the cross-section of the lifting arms is rectangular steel or round steel.

[0008] As a further improvement of the utility model, the angle between the upper cross beam and the lifting arm is 90°-135°, a protective cover is provided between the front and rear sides of the two lifting arms, the lower part of the protective cover is open, and the left and right sides of the protective cover are respectively fixed to the two lifting arms. The protective cover is composed of a horizontal top plate and a vertical outer plate, and the left and right sides of the outer plate are provided with mounting feet, and the two mounting feet are respectively fixed to the two lifting arms.

[0009] As a further improvement of the utility model, hinge holes are opened on the two beam plates, the upper end of the piston rod extends between the two beam plates, and the connecting pin shaft is matched and passed through one beam plate, the piston rod and the other beam plate in sequence.

[0010] As a further improvement of the utility model, the mounting frame includes two parallel longitudinal mounting plates, the lifting pin is transversely arranged between the two mounting plates, and the lifting bracket includes a bottom plate fixed to the carriage, a support is provided on the bottom plate, and the support is hinged to the lifting pin.

[0011] As a further improvement of the utility model, the left and right sides of the lower end of the oil cylinder body are provided with mounting shafts, the dump truck is provided with a mounting bracket, the mounting bracket is provided with two left-right symmetrical hinge seats, and the two mounting shafts are respectively hinged to the two hinge seats. The oil cylinder body can swing relative to the dump truck. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the front view of the utility model.

[0013] Figure 2 It is a side view of the utility model.

[0014] Figure 3 It is a top view of the utility model.

[0015] Figure 4 It is a bottom view of the utility model.

[0016] Figure 5 This is the front view of the lifting bracket.

[0017] Figure 6 A side view of the lifting bracket.

[0018] Among them, 1 cylinder body, 1a piston rod, 2 upper cross beam, 2a beam plate, 3 lifting arm, 4 mounting frame, 4a mounting plate, 5 lifting pin, 6 lifting bracket, 6a bottom plate, 6b support, 7 hinge hole, 8 connecting pin, 9 protective cover, 9a top plate, 9b outer plate, 10 mounting shaft, 11 mounting bracket, 12 hinge seat. DETAILED DESCRIPTION

[0019] like Figure 1-6 As shown, a novel cylinder carriage gantry connection structure comprises a cylinder body 1 and a piston rod 1a, the end of the cylinder body 1 is connected to the dump truck, and a connecting bracket is arranged corresponding to the piston rod 1a, the connecting bracket comprises a transversely arranged upper cross beam 2, the left and right ends of the upper cross beam 2 are connected with a lifting arm 3 extending downward, the lower end of the lifting arm 3 is provided with a mounting frame 4, the mounting frame 4 is rotatably connected to the corresponding lifting bracket 6 welded on the carriage of the dump truck through a lifting pin 5, a hinge hole 7 is longitudinally opened on the upper cross beam 2, a mounting hole for accommodating a longitudinal connecting pin 8 to pass through is opened on the upper end of the piston rod 1a of the cylinder body 1, the connecting pin 8 is arranged through the hinge hole 7, the two beam plates 2a are provided with hinge holes 7, the upper end of the piston rod 1a extends between the two beam plates 2a, and the connecting pin 8 is arranged in sequence through one beam plate 2a, the piston rod 1a and the other beam plate 2a; the piston rod 1a is hinged to the upper cross beam 2 through the connecting pin 8.

[0020] The upper cross beam 2 includes two parallel beam plates 2a. The upper ends of the two lifting arms 3 extend into the left and right sides between the two beam plates 2a and are fixed to the inner walls of the beam plates 2a. The cross section of the lifting arms 3 is rectangular steel or round steel.

[0021] The angle between the upper cross beam 2 and the lifting arm 3 is 90°-135°, and a protective cover 9 is provided between the front and rear sides of the two lifting arms 3, the lower part of the protective cover 9 is open, and the left and right sides of the protective cover 9 are respectively fixed to the two lifting arms 3. The protective cover 9 is composed of a horizontal top plate 9a and a vertical outer plate 9b, and the left and right sides of the outer plate 9b are provided with mounting feet, and the two mounting feet are respectively fixed to the two lifting arms 3.

[0022] The mounting frame 4 includes two parallel longitudinal mounting plates 4a, the lifting pin 5 is transversely arranged between the two mounting plates 4a, and the lifting bracket 6 includes a bottom plate 6a fixed to the carriage, a support 6b is provided on the bottom plate 6a, and the support 6b is hinged to the lifting pin 5.

[0023] The left and right sides of the lower end of the oil cylinder body 1 are both provided with mounting shafts 10, and the dump truck is provided with a mounting bracket 11, and the mounting bracket 11 is provided with two left-right symmetrical hinge seats 12, and the two mounting shafts 10 are respectively hinged to the two hinge seats 12. The oil cylinder body 1 can swing relative to the dump truck.

[0024] The utility model is used to connect the oil cylinder and the car body on the dump truck. The piston rod 1a of the oil cylinder is connected to the upper crossbeam 2 on the top of the gantry through a pin shaft, and the lifting bracket 6 is welded on the car body. The lower end of the oil cylinder body 1 is hinged to the hinge seat 12 on the dump truck, so that the piston rod 1a of the oil cylinder can lift the car body by telescoping. The advantages of the utility model are: 1. When the oil cylinder is connected to the car body, the front plate of the car body does not need to be specially designed; 2. Compared with the traditional connection method of the FE oil cylinder, the left and right and front supports are added to effectively suppress the left and right shaking of the box body and reduce the probability of rollover; 3. Compared with the FC outer sleeve connection, it ensures the stability of the box body while avoiding scratches and strains between the oil cylinder body and the outer sleeve; 4. The gantry can be directly switched with the FC oil cylinder without adding additional processes, and has a wide range of applicability.

[0025] The present utility model is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present utility model, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present utility model.

Claims

1. A novel cylinder carriage gantry connection structure, comprising a cylinder body and a piston rod, wherein the end of the cylinder body is connected to a dump truck, characterized in that: A connecting bracket is arranged corresponding to the piston rod, and the connecting bracket includes a laterally arranged upper cross beam, and the left and right ends of the upper cross beam are connected to lifting arms extending downward, and a mounting bracket is arranged at the lower end of the lifting arm, and the mounting bracket is rotatably connected to the corresponding lifting bracket welded on the car body of the dump truck through a lifting pin shaft. A hinge hole is longitudinally opened on the upper cross beam, and a mounting hole for accommodating the longitudinal connecting pin shaft to pass through is opened on the upper end of the piston rod of the oil cylinder body, and the connecting pin shaft is arranged through the hinge hole, and the piston rod is hinged to the upper cross beam through the connecting pin shaft.

2. A novel cylinder carriage gantry connection structure according to claim 1, characterized in that: The upper cross beam comprises two parallel beam plates, the upper ends of the two lifting arms extend into the left and right sides between the two beam plates respectively and are fixed to the inner walls of the beam plates, and the cross section of the lifting arms is rectangular steel or round steel.

3. According to the novel oil cylinder carriage gantry connection structure of claim 2, it is characterized in that: The angle between the upper cross beam and the lifting arm is 90°-135°. A protective cover is provided between the front and rear side surfaces of the two lifting arms. The lower part of the protective cover is open, and the left and right sides of the protective cover are respectively fixed to the two lifting arms.

4. The novel cylinder carriage gantry connection structure according to claim 2 is characterized in that: Both beam plates are provided with hinge holes, the upper end of the piston rod extends into between the two beam plates, and the connecting pin shaft is matched and passed through one beam plate, the piston rod and the other beam plate in sequence.

5. A novel cylinder carriage gantry connection structure according to any one of claims 1 to 4, characterized in that: The mounting frame comprises two parallel longitudinal mounting plates, a lifting pin is transversely arranged between the two mounting plates, and the lifting bracket comprises a bottom plate fixed to the carriage, a support is arranged on the bottom plate, and the support is hinged to the lifting pin.

6. A novel cylinder carriage gantry connection structure according to any one of claims 1 to 4, characterized in that: The left and right sides of the lower end of the oil cylinder body are both provided with mounting shafts, the dump truck is provided with a mounting bracket, the mounting bracket is provided with two left-right symmetrical hinge seats, and the two mounting shafts are respectively hinged with the two hinge seats.

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