CN207497431U

CN207497431U - A kind of torque arm vehicle telescopic arm

Info

Publication number: CN207497431U
Application number: CN201721212249.4U
Authority: CN
Inventors: 王灿喜; 陈中全; 王渊
Original assignee: Fujian Sea Environmental Protection Equipment Ltd By Share Ltd
Current assignee: Fujian Sea Environmental Protection Equipment Ltd By Share Ltd
Priority date: 2017-09-21
Filing date: 2017-09-21
Publication date: 2018-06-15
Anticipated expiration: 2027-09-21

Abstract

The utility model discloses a kind of torque arm vehicle telescopic arms, including outer barrel, telescopic arm, plunger case and sliding block, the outer barrel is the hollow square tube guide rail of welded type, telescopic arm nesting is slided mounted on outer barrel, sliding block is housed between the outer barrel and telescopic arm, the telescopic arm rear end is equipped with plunger case, and the plunger cylinder position is corresponded with slide position, the plunger connection sliding block of the plunger case.The utility model eliminates the gap between torque arm vehicle telescopic arm and sliding block and outer barrel by the hydraulic spring grease cup effect of plunger case, simple in structure, at low cost, and easy to implement, suitable popularization and application are reequiped in existing vehicle.

Description

A kind of torque arm vehicle telescopic arm

Technical field

The utility model is related to environmental sanitation equipment field more particularly to a kind of torque arm vehicle telescopic arms.

Background technology

Compartment removable garbage truck is indispensable transit vehicle in current China's environmental sanitation dust alleviation work.Carriage detachable type Garbage truck completes the automatic loading and unloading function of dustbin by telescopic arm, mainly drives carriage translation, master cylinder by translation oil cylinder Driving middle part cylinder arm is overturn, and telescopic arm is driven above to carry or transfer dustbin.

For the big compartment removable garbage truck of loading capacity, translation distance of the telescopic arm on subframe is very long, Long outer barrel guide pass inevitably occurs the fit clearance of deviation, outer barrel and telescopic arm in bending and welding, in length range It is inside non-uniform, when occurring larger gap between telescopic arm and guide rail, when translation can cause lifting hook to deflect, and compartment turns over It can lead to vehicle rollover when turning.Be easy to cause when gap is smaller between outer barrel and inner cylinder telescopic arm stretch out or retraction when clamping stagnation not It is suitable, influence dustbin handling operation.Prior art solution is the gap measured between outer barrel and telescopic arm, single to match gasket tune Whole gap, but inevitably there is the phenomenon that having time gap is bigger than normal it cannot be guaranteed that gap size is consistent in length range.At present some Producer eliminates gap using butterfly spring, and the deformation but spring easily fails, pressure change is big, and effect is not fine.

Invention content

The purpose of this utility model is to provide a kind of torque arm vehicle telescopic arms, are stretched using plunger case and eliminate gap, sliding block Keep certain pressure so that telescopic arm is capable of expansion and contraction.

Following technical scheme may be used to realize in the technical issues of the utility model solves：

A kind of torque arm vehicle telescopic arm, it is characterised in that：Including outer barrel, telescopic arm, plunger case and sliding block, the outer barrel is sky Heart square tube type guide rail, telescopic arm nesting are slided mounted on outer barrel, described flexible equipped with sliding block between the outer barrel and telescopic arm It is corresponded on arm equipped with plunger case, the plunger cylinder position with slide position, the plunger connection sliding block of the plunger case.

Preferably, the sliding block is made of MC self-lubricating nylon plate materials, and the telescopic arm is equipped with 6 pieces of sliding blocks, is mounted on Between on the outside of telescopic arm and on the inside of outer barrel.

Preferably, the plunger case is cylinder diameter Φ 30mm, and bar diameter is Φ 25mm, and stroke is the plunger case of 5mm.

Preferably, the plunger and sliding block mating spherical surfaces.

The utility model is eliminated by the hydraulic spring grease cup effect of plunger case between torque arm vehicle telescopic arm and sliding block and outer barrel Gap, it is simple in structure, it is at low cost, easy to implement, suitable popularization and application are reequiped in existing vehicle.

Description of the drawings

Fig. 1 is the longitudinal cross-section structure diagram of the utility model.

Fig. 2 is the hydraulic schematic of the utility model.

In figure, 1- outer barrels, 2- telescopic arms, 3- plunger cases, 4- plungers, 5- sliding blocks, 6- piston rods, 7- multiple directional control valves, 8- Pressure measuring tie-in.

Specific embodiment

The utility model is described in further detail with reference to embodiment, but the embodiment of the utility model is not It is limited to this.

As Fig. 1,2 be the utility model preferred embodiment, including outer barrel 1, telescopic arm 2, plunger case 3, plunger 4 and sliding block 5.

Outer barrel 1 is guide rail, and hollow rhs-structure, telescopic arm 2 is nested to be mounted in outer barrel 1, and the piston rod 6 of lifting hook drives Telescopic arm 2 moves in outer barrel 1, and equipped with sliding block 5 between outer barrel 1 and telescopic arm 2, sliding block 5 is MC self-lubricating nylon plate material systems Into, instead of common bloom, under the service condition of low-speed heave-load, can self-lubricating, friction coefficient is small, and wearability is good.This reality It applies in example, sliding block 5 has 6 pieces, is separately mounted between 1 inside of 2 outside of telescopic arm and outer barrel.

Plunger case 3 is set according to the quantity of sliding block 5, and size is selected according to the space between 2 inner wall of piston rod 6 and telescopic arm It selects, is only to eliminate gap only to need to select the plunger case 3 of very little cylinder diameter, in the present embodiment, equipped with 6 plunger cases 3, selects cylinder diameter Φ 30mm, bar diameter are Φ 25mm, and stroke is the plunger case of 5mm, and 3 position of plunger case corresponds with 5 position of sliding block, installs respectively It in 2 surrounding of telescopic arm, is moved as shown in Figure 1, being provided with hole on telescopic arm 2 for plunger 4,4 connection sliding block 5 of plunger, when sliding block 5 is worn When generating gap, oil pressure drives plunger 4 that sliding block 5 is pressed on outer tube inner wall, plays the role of compensation and eliminates gap.This implementation In example, plunger 4 and 5 mating spherical surfaces of sliding block can adapt to the medial surface of torque arm, carry out universal adjustment, as shown in Figure 1 automatically.

This system is to draw pressure oil all the way from the pressure measuring tie-in 8 of lifting hook multiple directional control valve 7, with small path high-pressure After hose is connected to 2 inner slide of telescopic arm, 5 position, then branches out 6 tunnels and connect 6 plunger cases 3 respectively, without in addition arranging hydraulic pressure It stands, hydraulic valve.

The utility model is acted on using the oil pressure of plunger case 3, gap is completely eliminated, pressure is identical up and down, is more than Operating pressure is, for pressure oil by the direct draining oil return box of oil return inlet T of multiple directional control valve 7, telescopic arm 2 is capable of expansion and contraction.

The above is only the utility model preferred embodiment, not the technical scope of the utility model is appointed What is limited, therefore every any trickle amendment, equivalent variations made according to the technical essence of the utility model to above example With modification, the scope of protection of the utility model is still fallen within.

Claims

1. a kind of torque arm vehicle telescopic arm, it is characterised in that：Including outer barrel, telescopic arm, plunger case and sliding block, the outer barrel is hollow Square tube type guide rail, telescopic arm nesting are slided mounted on outer barrel, equipped with sliding block, the telescopic arm between the outer barrel and telescopic arm It is upper to be corresponded equipped with plunger case, the plunger cylinder position and slide position, the plunger connection sliding block of the plunger case.

2. a kind of torque arm vehicle telescopic arm according to claim 1, it is characterised in that：The sliding block is MC self-lubricating nylon plates Material is made, and the telescopic arm is equipped with 6 pieces of sliding blocks, on the outside of telescopic arm between outer barrel inside.

3. a kind of torque arm vehicle telescopic arm according to claim 1, it is characterised in that：The plunger case is cylinder diameter Φ 30mm, Bar diameter is Φ 25mm, and stroke is the plunger case of 5mm.

4. a kind of torque arm vehicle telescopic arm according to claim 1, it is characterised in that：The plunger and sliding block mating spherical surfaces.