CN220904796U - Lifting mechanism of dump truck - Google Patents

Abstract

The utility model discloses a dump truck lifting mechanism, which belongs to the technical field of dump trucks and comprises a frame, wherein one end of the top of the frame is hinged with a hopper, the end part of the hopper is hinged with a baffle, a locking mechanism is arranged between the hopper and the baffle, the bottom of the hopper, which is close to one end of the baffle, is provided with a contact switch, the bottom of the frame is provided with a hydraulic cylinder, the output end of the hydraulic cylinder is hinged with the top of the hopper, the contact switch is electrically connected with the hydraulic cylinder through a wire, and the frame is provided with a supporting mechanism. According to the arrangement of the contact switch at the bottom of the car hopper, the contact switch is electrically connected with the hydraulic cylinder, when the baffle is attached to the car hopper, the contact switch is in the closed state, the hydraulic cylinder cannot be started at the moment, and the hydraulic cylinder can be started only after the hook is separated from the lapping block, so that the backward lifting of the car hopper in the full-load state is effectively avoided, and the use safety is improved.

Description

Lifting mechanism of dump truck

Technical Field

The utility model relates to a lifting mechanism, in particular to a self-dumping truck lifting mechanism, and belongs to the technical field of self-dumping trucks.

Background

The self-unloading vehicle is a vehicle which automatically unloads goods through hydraulic or mechanical lifting, the carriage of the self-unloading vehicle is divided into backward tipping and lateral tipping, the piston rod is controlled to move through the control system, the backward tipping is common, the piston rod is pushed to tip the carriage, and a few of the self-unloading vehicles are bidirectionally tipped.

The utility model of application number 202223263787.X discloses a dump truck lifting mechanism with high safety, when the container is horizontally arranged on the frame, the switch pressing block is pressed at the working end of the travel switch, the vehicle controller can identify the position state of the container, the safety in the use process of the dump truck is improved, the proximity switch and the travel switch can detect the position state of the container at the same time, and the running stability of the mechanism is further improved.

Similar to the above-mentioned application, there are currently disadvantages:

1. In the unloading process, the situation that a worker lifts the baffle for opening the baffle can occur, so that the gravity center of the vehicle moves backwards, the situation that the vehicle turns backwards and is even sunk into the ground easily is caused, and certain potential safety hazards exist;

2. The supporting area at the center of gravity of the vehicle cannot be increased in the lifting process, so that the stability of the rear support of the vehicle is poor;

A dump truck lifting mechanism is designed for the purpose to optimize the problems.

Disclosure of utility model

The utility model mainly aims to provide a lifting mechanism for a dump truck, which comprises a lifting mechanism body, a lifting mechanism body and a lifting mechanism body.

The aim of the utility model can be achieved by adopting the following technical scheme:

The utility model provides a dumper lifting mechanism, includes the frame, the one end at frame top articulates installs the car hopper, the tip of car hopper articulates there is the baffle, be provided with locking mechanical system between car hopper and the baffle, the bottom that the car hopper is close to baffle one end is provided with contact switch, the pneumatic cylinder is installed to the bottom of frame, the output of pneumatic cylinder articulates with the top of car hopper, contact switch passes through electric connection between wire and the pneumatic cylinder, be provided with supporting mechanism on the frame.

Preferably: the locking mechanism comprises a hook and a lapping block, the hook is arranged on two sides of one end, close to the baffle, of the car hopper, the hook is rotationally connected with the car hopper, the lapping block is arranged on two sides of the baffle, and the hook is lapped with the lapping block.

Preferably: one end of the bottom of the car hopper, which is far away from the hook, is provided with a rubber cushion block, and the length of the rubber cushion block is the same as the width of the car hopper.

Preferably: the support mechanism comprises sliding grooves, sliding blocks and gears, wherein the sliding grooves are formed in two sides of the frame, the sliding blocks are arranged in the sliding grooves in a sliding mode, the hydraulic cylinders are rotatably arranged between the sliding blocks, racks are fixed on one sides of the sliding blocks, the gears are meshed with the bottoms of the racks, and supporting rods are arranged on the gears.

Preferably: the one end that branch kept away from the gear articulates and installs the support, the bottom of support is provided with the slipmat.

The beneficial effects of the utility model are as follows:

According to the dump truck lifting mechanism, the contact switch at the bottom of the hopper is electrically connected with the hydraulic cylinder, when the baffle is attached to the hopper, the contact switch is in the closed state, the hydraulic cylinder cannot be started at the moment, and the hydraulic cylinder can be started only after the hook is separated from the lapping block, so that the backward lifting of the hopper in the full-load state is effectively avoided, and the use safety is improved;

The setting of frame both sides spout rotates between the inside slider of spout and the pneumatic cylinder to be connected, when the pneumatic cylinder starts, control the slider earlier and slide towards the tip of spout, and cooperation gear, rack, pair of power and support are used again, can be when lifting the car hopper, control the upset of branch, laminate between the bottom and the bottom surface of support, improved the area of contact between focus department and the bottom surface, increased the stability of vehicle.

Drawings

FIG. 1 is a front cross-sectional view of the present utility model;

FIG. 2 is a discharge state diagram of the present utility model;

FIG. 3 is an enlarged view of FIG. 1A in accordance with the present utility model;

Fig. 4 is an enlarged view of fig. 2B in accordance with the present utility model.

In the figure: 1. a frame; 2. a hopper; 3. a baffle; 4. a hook; 5. building blocks; 6. a contact switch; 7. a hydraulic cylinder; 8. a chute; 9. a slide block; 10. a rack; 11. a gear; 12. a support rod; 13. and (5) a support.

Detailed Description

In order to make the technical solution of the present utility model more clear and clear to those skilled in the art, the present utility model will be described in further detail with reference to examples and drawings, but the embodiments of the present utility model are not limited thereto.

Example 1

As shown in fig. 1-4, this embodiment provides a dump truck lifting mechanism, including frame 1, the one end at frame 1 top articulates installs hopper 2, the tip of hopper 2 articulates there is baffle 3, be provided with locking mechanical system between hopper 2 and the baffle 3, locking mechanical system includes couple 4 and clutch 5, couple 4 installs the both sides that are close to baffle 3 one end at hopper 2, and rotate between couple 4 and the hopper 2 to be connected, clutch 5 installs the both sides at baffle 3, overlap joint between couple 4 and the clutch 5, the bottom that hopper 2 is close to baffle 3 one end is provided with contact switch 6, pneumatic cylinder 7 is installed to the bottom of frame 1, the output of pneumatic cylinder 7 articulates with the top of hopper 2, contact switch 6 passes through electric connection between wire and the pneumatic cylinder 7, be provided with supporting mechanism on the frame 1, the one end that the couple 4 was kept away from to the hopper 2 bottom is provided with the rubber cushion, and the length of rubber cushion is the same with the width of hopper 2.

After the car hopper 2 is filled with goods, the hook 4 is turned over, the baffle 3 is attached to the top of the lapping block 5, the end of the car hopper 2 is attached to the baffle 3, the baffle 3 is in contact with the contact switch 6, the hydraulic cylinder 7 cannot be opened, the baffle 3 is separated from the contact switch 6 in the positioning state of the baffle 3 in the unloading process, then the hydraulic cylinder 7 is controlled to be started in the control room, the car hopper 2 is jacked up, and the goods slide from one end close to the baffle 3.

Example two

In this embodiment, as shown in fig. 1-4, the supporting mechanism includes a sliding chute 8, sliding blocks 9 and gears 11, the sliding chute 8 is provided on two sides of the frame 1, the sliding blocks 9 are slidably disposed in the sliding chute 8, the hydraulic cylinder 7 is rotatably mounted between the sliding blocks 9, a rack 10 is fixed on one side of the sliding block 9, the bottom of the rack 10 is meshed with the gears 11, and a supporting rod 12 is mounted on the gears 11.

When the hydraulic cylinder 7 is started, along with the extension of the hydraulic cylinder 7, the control slide block 9 moves towards the end part of the chute 8, the rack 10 on the slide block 9 controls the rotation of the gear 11, the support rod 12 is turned downwards and supported on the bottom surface, the contact area of the gravity center is increased, the gravity center position is stabilized, and after the support is completed, the hydraulic cylinder 7 continues to extend, and the car hopper 2 is jacked up.

In the embodiment, a support 13 is hinged at one end of the support rod 12 far away from the gear 11, and an anti-slip pad is arranged at the bottom of the support 13.

By means of the arrangement of the support 13, the contact area and the contact effect in the use process are improved.

The above description is merely a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto, and any person skilled in the art will be able to apply equivalents and modifications according to the technical solution and the concept of the present utility model within the scope of the present utility model disclosed in the present utility model.

Claims (5)

1. The utility model provides a tipper lifting mechanism which characterized in that: including frame (1), hopper (2) are installed in the articulated one end at frame (1) top, the tip of hopper (2) articulates there is baffle (3), be provided with locking mechanical system between hopper (2) and baffle (3), the bottom that hopper (2) are close to baffle (3) one end is provided with contact switch (6), pneumatic cylinder (7) are installed to the bottom of frame (1), the output of pneumatic cylinder (7) is articulated with the top of hopper (2), electric connection between contact switch (6) through wire and pneumatic cylinder (7), be provided with supporting mechanism on frame (1).

2. The lift mechanism of a dump truck of claim 1, wherein: the locking mechanism comprises a hook (4) and a lapping block (5), wherein the hook (4) is arranged on two sides of one end, close to the baffle (3), of the car hopper (2), the hook (4) is rotationally connected with the car hopper (2), the lapping block (5) is arranged on two sides of the baffle (3), and the hook (4) is lapped with the lapping block (5).

3. The dump truck lifting mechanism of claim 2, wherein: one end of the bottom of the car hopper (2) far away from the hook (4) is provided with a rubber cushion block, and the length of the rubber cushion block is the same as the width of the car hopper (2).

4. A dump truck lifting mechanism according to claim 3, wherein: the supporting mechanism comprises sliding grooves (8), sliding blocks (9) and gears (11), wherein the sliding grooves (8) are formed in two sides of a frame (1), the sliding blocks (9) are arranged in the sliding grooves (8) in a sliding mode, the hydraulic cylinders (7) are rotatably arranged between the sliding blocks (9), racks (10) are fixed on one sides of the sliding blocks (9), the gears (11) are meshed with the bottoms of the racks (10), and supporting rods (12) are arranged on the gears (11).

5. The lift mechanism of claim 4, wherein: one end of the supporting rod (12) far away from the gear (11) is hinged with a support (13), and an anti-slip pad is arranged at the bottom of the support (13).