CN220865293U - Rotating arm - Google Patents

Abstract

The utility model provides a rotating arm which can complete the whole actions of separating a carriage from a chassis and placing the carriage on the ground, and the like, wherein the rotating arm adopts a hydraulic cylinder, so that the action is reliable, the required hydraulic oil pressure is low, the energy consumption is low, the structure is simple, and the operation and the use are quick and convenient. The rotating arm is arranged on a chassis of an automobile and mainly comprises a bracket, a sliding frame, a translation oil cylinder and a turnover oil cylinder; the sliding frame is arranged on the bracket in a sliding way in the front-back direction, and a translation oil cylinder for driving the sliding frame to move back and forth relative to the bracket is connected between the sliding frame and the bracket; the front part of the sliding frame is a vertical arm extending upwards; the upper end of the vertical arm is provided with a detachable hinging structure used for forming with the front part of the carriage; the rear part of the bracket is hinged with the chassis; a turnover oil cylinder is arranged between the chassis and the front part of the bracket and is used for driving the bracket to turn upwards and backwards around the hinge joint of the bracket and the chassis.

Description

Rotating arm

Technical Field

The utility model relates to a rotating arm arranged on an automobile, in particular to a drainage emergency vehicle, which is used for separating a movable carriage from an automobile chassis and placing the movable carriage on the ground.

Background

The movable carriage is used for the drainage emergency vehicle for urban flood prevention and drainage, drought resistance, municipal engineering, emergency drainage and the like, and the carriage can be separated from the chassis and placed on the ground. The movable carriage is used for placing a self-priming pump or a self-walking robot pump station and the like. The engineering rescue vehicle is more convenient to use and has stronger adaptability.

However, the mechanism used for separating the carriage from the chassis is complex in whole, inconvenient to install and inconvenient to operate and use.

Disclosure of Invention

The utility model aims to provide a rotating arm which can complete the whole actions of separating a carriage from a chassis and placing the carriage on the ground and the like, and the rotating arm adopts a hydraulic cylinder, has reliable action, low pressure of needed hydraulic oil, low energy consumption, simple structure and quick and convenient operation and use.

The utility model adopts the following technical scheme:

The rotating arm is arranged on a chassis of the automobile and mainly comprises a bracket, a sliding frame, a translation oil cylinder and a turnover oil cylinder; the sliding frame is arranged on the bracket in a sliding way in the front-back direction, and a translation oil cylinder for driving the sliding frame to move back and forth relative to the bracket is connected between the sliding frame and the bracket; the front part of the sliding frame is a vertical arm extending upwards; the upper end of the vertical arm is provided with a detachable hinging structure used for forming with the front part of the carriage; the rear part of the bracket is hinged with the chassis; a turnover oil cylinder is arranged between the chassis and the front part of the bracket and is used for driving the bracket to turn upwards and backwards around the hinge joint of the bracket and the chassis.

The rotary arm is characterized in that a lug extending downwards is fixed at the rear part of the bracket, and the lower end of the lug is hinged with the chassis; when the bracket is not turned over, the hinge joint of the turning oil cylinder and the bracket is higher than the hinge joint of the lower end of the lug and the chassis.

The upper end of the vertical arm is provided with a pin shaft which is used for being hinged with the front part of the carriage and can be inserted.

The rotating arm is provided with a hook hinged with a hook shaft fixed at the front part of the carriage at the upper end of the vertical arm.

The two turning cylinders are symmetrically arranged on two sides of the bracket.

The number of the rotating arms and the translation cylinders is two.

The utility model has the beneficial effects that:

the rotating arm can completely and quickly separate the carriage from the chassis and place the carriage on the ground. The translation cylinder acts to drive the carriage to move forwards and backwards. The overturning oil cylinder can enable the support to overturn upwards and backwards, so that the carriage can swing while moving, and finally the carriage is placed on the ground.

Specifically, the translation oil cylinder acts, a piston rod in the translation oil cylinder is retracted, the sliding frame and the vertical arm translate backwards relative to the bracket, the vertical arm drives the carriage to slide backwards relative to the chassis, and the rear end part of the carriage gradually leaves the chassis. When the piston rod in the translation oil cylinder is completely retracted, the overturning oil cylinder starts to act, the piston rod of the overturning oil cylinder gradually stretches out to drive the bracket to overturn upwards and backwards around the hinge axis of the lug and the chassis, and the carriage swings in a vertical plane while moving backwards. After the rear end part of the carriage is contacted with the ground, the piston rod of the overturning oil cylinder continues to extend, the rear carriage continues to move backwards (or the chassis moves forwards), and the front end of the rear carriage is separated from the chassis in the vertical direction. The piston rod of the overturning oil cylinder continues to extend, the rotating arm swings backwards and downwards, the front end of the rear carriage gradually approaches the ground, the rear carriage is placed on the ground after the front end of the rear carriage contacts the ground, and the overturning oil cylinder stops acting.

The lug which is fixed at the rear part of the bracket and extends downwards is hinged with the chassis, so that the hydraulic oil pressure for driving the bracket to turn upwards and backwards by the turning oil cylinder is reduced.

Drawings

Fig. 1 is an overall view of a drainage rescue vehicle.

Fig. 2 is a schematic view of the drainage rescue vehicle as the rear compartment translates rearward.

Fig. 3 is a schematic view of the chassis, swivel arm with the rear compartment etc. removed.

Fig. 4 is a perspective view of the chassis, the rotary arm, and the like with the rear compartment removed.

Fig. 5 is another perspective view of the chassis, swivel arm, etc. with the rear compartment removed.

Fig. 6 is a schematic view of the rear compartment when it is flipped over.

Fig. 7 is an overall schematic diagram when the rear compartment is turned over.

Fig. 8 is a partial schematic view of the rear compartment when the rear compartment is flipped over.

Fig. 9 is a perspective view of the rotary arm.

In the figure, a rotating arm 1, a bracket 11, a sliding frame 12, a vertical arm 13, a shaft sleeve 14, a lug 15, a turnover oil cylinder 16,

Chassis 2, support rollers 21, cockpit 3,

A front carriage 4, a submersible pump cabin 41, a submersible pump controller cabin 42, a generator set 43, a storage cabin 44,

Rear compartment 5, rib 51, roller 52, round pin axle 6.

Detailed Description

The drainage emergency vehicle shown in figures 1-3 mainly comprises a chassis 2, wheels, an internal combustion engine and a gearbox which are mainly used for driving the emergency vehicle to walk, a cockpit 3, a front carriage (fixed carriage) 4, a rear carriage (movable carriage) 5, a generator set, a water belt, a float, a submersible pump controller, a self-walking robot pump station arranged in the rear carriage and a rotating arm 1.

Referring to fig. 9, the rotary arm 1 mainly comprises a bracket 11, a sliding frame 12, a vertical arm 13, a shaft sleeve 14, a lug 15, a translation cylinder and a turnover cylinder 16, and is positioned in the middle of the rear part of the chassis. The outer periphery of the sliding frame 12 of the sleeve structure and the inner wall of the bracket 11 of the sleeve structure slide in the front-rear direction. The translation cylinder for driving the carriage to move back and forth relative to the support is located inside the carriage 12, and both ends of the translation cylinder are respectively hinged to the carriage and the support. The front part of the sliding frame is fixedly provided with an upward extending vertical arm 13; the upper end of the vertical arm is provided with a shaft sleeve 14 for inserting the pin shaft 6.

Two parallel rib plates 51 are fixed in the middle of the front end face of the rear carriage 5, and shaft holes matched with two ends of the pin shaft 6 are formed in the rib plates 51.

A downwardly extending lug 15 is fixed to the rear of the bracket 11, the lower end of which lug is hinged to the chassis. The two overturning oil cylinders 16 are symmetrically arranged on two sides of the bracket, one end of each overturning oil cylinder 16 is hinged with the front upper part of the bracket 11, and the other end of each overturning oil cylinder 16 is hinged with the chassis. When the bracket 11 is not turned over, the hinge joint of the turning cylinder and the bracket is higher than the hinge joint of the lower end of the lug and the chassis in the vertical direction.

The front end and the rear end of the bottom of the rear carriage positioned at the two sides of the rotating arm are respectively provided with a rotating roller 52 which is in rolling contact with the two side parts of the upper surface of the chassis. At the rear end of the chassis is provided a rotating support roller 21 protruding from the upper surface of the chassis.

The cockpit 3, the front carriage 4 and the rear carriage 5 are sequentially arranged on the chassis 2 from front to back. A generator set 43 is placed in the front compartment and has a storage compartment 44 for water bands, floats, etc. A submersible pump cabin 41 for placing a submersible pump, a submersible pump controller cabin 42 for placing a submersible pump controller and the like are arranged below the bottom of the front carriage.

Of course, the upper end of the vertical arm 13 may be formed in a detachable hinge structure with the front end surface of the rear compartment in other manners. For example, a hook is fixed at the upper end of the vertical arm, and is hinged with a hook shaft fixed on the rib plate, and the hook and the like belong to the prior art.

In a normal state, the front part of the rear carriage is contacted with the rear part of the front carriage, and a piston rod in a translation oil cylinder on the rotating arm is in an extending state. The process of separating the carriage from the chassis and placing the carriage on the ground after the carriage is slid is as follows:

translation of the rear carriage: referring to fig. 1-5, the translation cylinder acts, a piston rod in the translation cylinder is retracted, the sliding frame and the vertical arm translate backwards relative to the bracket, the vertical arm drives the rear carriage to slide backwards relative to the chassis, the rotating roller rolls on the upper surface of the chassis, the supporting roller rolls relative to the bottom surface of the rear carriage, and the rear end part of the rear carriage gradually leaves the chassis.

And (3) turning over a rear carriage: referring to fig. 6-8, when the piston rod in the translation cylinder is completely retracted, the overturning cylinder starts to act, the piston rod of the overturning cylinder gradually extends out to drive the bracket to overturn upwards and backwards around the hinge axis of the lug and the chassis, and the rear carriage swings in a vertical plane while moving backwards. After the roller at the rear end of the rear carriage contacts the ground, the roller rolls on the middle ground. The piston rod of the overturning oil cylinder continues to extend, the rear carriage continues to move backwards, and the front end of the rear carriage is separated from the chassis in the vertical direction. The piston rod of the overturning oil cylinder continues to extend, the rotating arm swings backwards and downwards, the front end of the rear carriage gradually approaches the ground, the rear carriage is placed on the ground after the front end of the rear carriage contacts the ground, and the overturning oil cylinder stops acting.

Unhooking: the pin shaft is pulled out, so that the vertical arm is not connected with the rear carriage, and then the piston rod of the overturning oil cylinder starts to retract.

The utility model adopts the structures such as the rotating arm, and the like, so that the rear carriage with the self-priming pump or the pump station can be separated from the chassis and placed on the ground, the concept of the mobile water pump is truly realized, the equipment can meet the requirements of emergency drainage and rescue, and all-weather outdoor operation can be realized. If the self-walking robot pump station is adopted, the self-walking robot pump station can come out of a carriage after being placed on the ground and travel to the vicinity of a disaster.

The engineering emergency vehicle is provided with a generator set and has a mobile power supply function. Meanwhile, the device can also be provided with a submersible pump, a submersible cable, a submersible pump controller and the like. The self-priming pump, the pump station and the submersible pump can work normally by using a generator set or commercial power.

In the backward translation process of the rear carriage, the rotary roller rolls on the upper part of the chassis, and the resistance is small. When the rotating arm is turned upwards and backwards relative to the chassis under the action of the turning oil cylinder, the rear carriage swings while moving backwards, the supporting roller rolls relative to the bottom surface of the rear carriage, the resistance to the rear carriage is small, and the action is flexible.

Claims (6)

1. Rotating arm installs on the chassis of car, characterized by: the device mainly comprises a bracket, a sliding frame, a translation oil cylinder and a turnover oil cylinder; the sliding frame is arranged on the bracket in a sliding way in the front-back direction, and a translation oil cylinder for driving the sliding frame to move back and forth relative to the bracket is connected between the sliding frame and the bracket; the front part of the sliding frame is a vertical arm extending upwards; the upper end of the vertical arm is provided with a detachable hinging structure used for forming with the front part of the carriage; the rear part of the bracket is hinged with the chassis; a turnover oil cylinder is arranged between the chassis and the front part of the bracket and is used for driving the bracket to turn upwards and backwards around the hinge joint of the bracket and the chassis.

2. The rotary arm according to claim 1, wherein: the rear part of the bracket is fixed with a downward extending lug, and the lower end of the lug is hinged with the chassis; when the bracket is not turned over, the hinge joint of the turning oil cylinder and the bracket is higher than the hinge joint of the lower end of the lug and the chassis.

3. The rotary arm according to claim 1, wherein: the upper end of the vertical arm is provided with a pin shaft which is used for being hinged with the front part of the carriage and can be inserted.

4. The rotary arm according to claim 1, wherein: the upper end of the vertical arm is provided with a hook which is hinged with a hook shaft fixed at the front part of the carriage.

5. The rotary arm according to claim 1, wherein: the two overturning oil cylinders are symmetrically arranged at two sides of the bracket.

6. The rotary arm according to claim 1, wherein: the number of the translation cylinders is two.