CN203187322U - Arm body retraction mechanism in forestry crane pipeline - Google Patents

Abstract

The utility model discloses an arm body retraction mechanism in a forestry crane pipeline and belongs to an arm body retraction mechanism in engineering machinery. The mechanism comprises a basic arm, a connecting body, a supporting plate, a clapboard joint, a protective cover, a telescopic arm, a hard pipe, a slide block, an adjusting slide block and a hose, wherein the telescopic arm is positioned in the basic arm; the connecting body is connected to the end of the basic arm; the supporting plate, the clapboard joint, the protective cover and the slide block are connected to the connecting body; two ends of the clapboard joint are respectively connected with the hard pipe and the hose; the adjusting slide block is connected to two sides at the inner end of the basic arm; the telescopic arm has an inverted T-shaped arm body structure, a space for accommodating the soft and hard pipelines is formed in two sides of the telescopic arm, and a hose bracket is arranged on the lower side of the telescopic arm; and the hose is arranged in the hose bracket to enter the tail end of the telescopic arm. The arm body retraction mechanism has the advantages that the arm body can retract, the pipeline can be effectively protected under severe working conditions through the built-in pipeline structure, and the arm body is compact and attractive in appearance; and moreover, the arm body pipeline is effectively protected, and the safety and service life of the forestry crane in the severe working environment are improved.

Description

The arm body telescoping mechanism that a kind of forestry hoisting crane pipeline is built-in

Technical field

The utility model relates to a kind of arm body telescoping mechanism of construction machinery and equipment, particularly the built-in arm body telescoping mechanism of a kind of forestry hoisting crane pipeline.

Background technology

The forestry hoisting crane be at the log of forestry exploitation collect, a kind of special-purpose lorry-mounted crane of classification, handling labor.It is installed on the matching used car chassis, is collectively referred to as the forestry derrick car, be a kind ofly collect lifting, transportation is the new and effective weight-hauling equipment of one.China's Forest Resources is abundant, and forestry occupies very consequence as one of mainstay of the national economy industry in economic development, and the exploitation of forestry and transhipment then become one of the important step the most in the forest development.In the past exploitation form and transporting mode have very strong dependence to weather.

The forestry hoisting crane can be divided into forestry purposes and industrial use by its purposes, but no matter is applicable to that the forestry exploitation still is used for collection and the transhipment of industrial waste goods and materials, and the working environment of forestry hoisting crane is all very abominable.Grasping the log operation or carrying out trade waste when collecting, easily because of the hydraulic ram to exposing, the block of valve and external hydraulic tubing etc. cause damage, and therefore must carry out actv. to the critical parts of hoisting crane and protect.

The forestry hoisting crane is because of the particularity of its target, in different operating environments, need to use different gripping apparatus accessories, collect the special-purpose accessory of rubble sand etc. during as the broken steel gripping apparatus of the log gripping apparatus of forestry operation, industrial operations and square brick gripping apparatus, earthwork, so on telescopic boom, exist a cover hydraulic pressure inlet and outlet of fuel channel to control the action of gripping apparatus or accessory at least.Because forestry hoisting crane work environment is abominable, external oil circuit very easily suffers damage in operation, causes the consequence of leakage of oil even pipeline fracture.

The utility model content

The purpose of this utility model is the arm body telescoping mechanism that will provide a kind of forestry hoisting crane pipeline built-in, solves in the problem that realizes can playing hydraulic circuit when the arm body stretches effective protective effect.

The purpose of this utility model is achieved in that this arm body telescoping mechanism comprises: basic arm, connector, supporting plate, dividing plate joint, guard shield, telescopic boom, hard tube, slide block, adjustment slide block and flexible pipe; Telescopic boom is positioned at basic arm, is connected with connector in the end of basic arm, is connected with supporting plate, dividing plate joint, guard shield and slide block at connector, and two ends of dividing plate joint are connected with flexible pipe with hard tube respectively, adjusts the both sides that slide block is connected basic arm the inner.

Described telescopic boom is the arm body structure of inverted T-shaped, and both sides are for arranging the space of soft or hard pipeline, and downside is the flexible pipe bracket, and flexible pipe is arranged in and enters the telescopic boom tail end in the flexible pipe bracket and unfold motion simultaneously in the flexible pipe bracket.

Beneficial effect: owing to adopted such scheme, by reasonable Arrangement telescopic boom arm body inner space, be connected and fixed on the hard tube and the flexible pipe that is positioned at telescopic boom flexible pipe bracket of basic arm inboard by the dividing plate joint, by the Driven by Hydraulic Cylinder telescopic boom, realize the built-in arm body telescoping mechanism of hydraulic tubing, with the carriage stationary barrier joint that is fixed on the basic arm hard tube on the basic arm and the flexible pipe that leads to telescopic boom are coupled together, it is inboard fixing that hard tube is close to basic arm, and flexible pipe enters into the telescopic boom tail end by the flexible pipe bracket on the telescopic boom.Hard tube is connected to higher level's oil circuit at basic arm, and flexible pipe is connected to the next stage oil circuit at the telescopic boom afterbody, and telescopic boom drives by hydraulic ram and stretches, thereby has realized the arm body fore and aft motion that pipeline is built-in.Solved in the problem that realizes to play hydraulic circuit when the arm body stretches effective protective effect, reached the purpose of this utility model.

Advantage: this structure can realize that the arm body is flexible, and the built-in structure of pipeline can effectively be protected pipeline under bad working environments, and the arm body is compacter, attractive in appearance simultaneously.Actv. has solved the difficult problem in the known field of present forestry hoisting crane, effectively arm body pipeline is protected, and has improved safety and service life under the abominable working environment of forestry hoisting crane.

Description of drawings

Fig. 1 is that telescopic boom of the present utility model stretches out constructional drawing.

Fig. 2 is telescopic boom retraction structure figure of the present utility model.

Among the figure, 1, basic arm; 2, connector; 3, supporting plate; 4, dividing plate joint; 5, guard shield; 6, telescopic boom; 7, hard tube; 8, slide block; 9, adjust slide block; 10, flexible pipe.

The specific embodiment

Bottom is described in further detail the utility model with specific embodiments by reference to the accompanying drawings.

Embodiment 1: this arm body telescoping mechanism comprises: basic arm 1, connector 2, supporting plate 3, dividing plate joint 4,guard shield 5, telescopic boom 6, hard tube 7,slide block 8,adjustment slide block 9 andflexible pipe 10; Telescopic boom 6 is positioned at basic arm 1, be connected with connector 2 in the end of basic arm 1, be connected with supporting plate 3, dividing plate joint 4,guard shield 5 andslide block 8 at connector 2, two ends of dividing plate joint 4 are connected withflexible pipe 10 with hard tube 7 respectively, adjust the both sides thatslide block 9 is connected basic arm 1 the inner.

Described telescopic boom is the arm body structure of inverted T-shaped, and both sides are for arranging the space of soft or hard pipeline, and downside is the flexible pipe bracket, and flexible pipe is arranged in and enters the telescopic boom tail end in the flexible pipe bracket and unfold motion simultaneously in the flexible pipe bracket.

In Fig. 1, connector 2 fixedly has 4 while of four dividing plate joints supporting plate 3 to be fixed on the connector 2 by screw by being bolted on basic arm 1 on the supporting plate 3.It is inboard fixing that hard tube 7 is close to basic arm 1, is connected on the dividing plate joint at supporting plate 3 places, and the dividing plate joint other end connectsflexible pipe 10 simultaneously.Flexible pipe 10 falls within the flexible pipe bracket of telescopic boom 6, and enters into the telescopic boom afterbody by the flexible pipe bracket, is connected to the next stage oil circuit.In like manner, its excess-three root flexible pipe adopts identical layout with hard tube.Telescopic boom 6 drives by hydraulic ram, carries out fore and aft motion, and along with stretching of telescopic boom,flexible pipe 10 will be done the controlled motion of unfolding in the flexible pipe groove, and the flexible pipe position during the telescopic boom withdrawal as shown in Figure 2.In the telescopic boom both sides, have two be screwed on basic arm by screw rod adjustadjustment slide block 9, the spacing flexible pipe that makes of flexible pipe can not break away from basic arm inside when stretching entirely as telescopic boom on the one hand, can adjust the gap of telescopic boom on the other hand, and the motion of telescopic boom is play the guiding role.At the telescopic boom upside, have by screw to be fixed onnylon slide block 8 on the connector 2, protect theguard shield 5 of pipeline also to be fixed on the connector 2 by screw simultaneously.

Claims (2)

1. arm body telescoping mechanism that forestry hoisting crane pipeline is built-in, it is characterized in that: this arm body telescoping mechanism comprises: basic arm, connector, supporting plate, dividing plate joint, guard shield, telescopic boom, hard tube, slide block, adjustment slide block and flexible pipe; Telescopic boom is positioned at basic arm, is connected with connector in the end of basic arm, is connected with supporting plate, dividing plate joint, guard shield and slide block at connector, and two ends of dividing plate joint are connected with flexible pipe with hard tube respectively, adjusts the both sides that slide block is connected basic arm the inner.

2. the built-in arm body telescoping mechanism of forestry hoisting crane pipeline according to claim 1, it is characterized in that: described telescopic boom is the arm body structure of inverted T-shaped, both sides are for arranging the space of soft or hard pipeline, downside is the flexible pipe bracket, and flexible pipe is arranged in and enters the telescopic boom tail end in the flexible pipe bracket and simultaneously unfold motion in the flexible pipe bracket.

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