JPH072325U - Telescopic frame structure of telescopic belt conveyor - Google Patents

Abstract

(57) [Abstract] [Purpose] By combining frame materials of the same shape, it is possible to easily assemble and manage parts and reduce costs. Also, the bending rigidity is high, and space is provided in the width and height directions. Proposal of an expandable frame structure that allows adjacent frames to be expanded and contracted without being taken apart [Structure] An inward opening and an outward opening are formed vertically in a substantially self-shaped cross section, and By using a plurality of pairs of left and right elongated frame members 2 in which the inward facing openings are juxtaposed so as to face each other, the frame members of each set adjacent to the inside are placed in the upper inward opening of each set of frame members. The frame members of each set are assembled so as to be expandable and contractable by sequentially inserting and contracting, and the horizontal connecting member 1 is provided between the upper ends of the inward openings of the frame members of each set.
Combine 0 to combine them.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a stretchable frame structure for a belt conveyor capable of stretching the conveyor length.

[0002]

[Prior art]

 Hitherto, as a frame for an extendable conveyor, there has been proposed one in which a plurality of conveyor frames are telescopically inserted so that the frame can be extended and retracted (Actual No. 51-104589, No. 50-42219). .

[0003]

[Problems to be solved by the device]

 However, in this conventional type, the constituent members of the conveyor frame are a combination of bent steel plates and shaped steels, which are expensive because they are assembled by welding, and precision is difficult to obtain. Moreover, since it is long, it is not only inconvenient to handle, but there is a problem in strength, especially in bending strength, and it is often prone to bending. In addition, there is a problem in that a relatively large width and height are required because the adjacent frames are elastically inserted into each other, and the degree becomes larger as the length of the conveyor machine becomes longer.

The present invention solves the conventional problems described above, and in order to reduce the number of parts used, it is possible to easily assemble and manage parts with a combination of frame materials of the same shape, thereby reducing costs and bending. It proposes an expandable frame structure that has high rigidity and that allows adjacent frames to be inserted and expanded without space in the width and height directions.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the telescopic frame structure of the present invention has an inward opening and an outward opening which are integrally formed vertically and has a substantially self-shaped cross section. Using multiple pairs of left and right elongated frame members that are juxtaposed so as to face each other, the frame members of each set that are adjacent to the inside are sequentially inserted into the upper inward opening of each set of frames so that they can expand and contract. Then, the frame members of each set are assembled so that they can expand and contract with each other, and a horizontal connecting member is integrally joined between the upper ends of the inward openings of the frame members of each set.

A guide roller that rotates in contact with a guide roller guide portion on the upper surface or the lower surface of the outward opening of each pair of frame members adjacent to the inside is attached to the inward opening. . As a result, the adjacent frame members of each set smoothly expand and contract.

[0007]

【Example】

 An embodiment of the present invention will be described below. 1 and 2 are cross-sectional views of different portions of the left and right frame members and the horizontal connecting members, and the frame member and the horizontal connecting members are shown separately. 3 and 4 are a plan view and a front view showing the telescopic belt conveyor having the telescopic frame structure of the present invention, showing the frame extended state.

Referring to the drawings, reference numerals 1, 1 ′ and 1 ″ denote three types of conveyor frames having different sizes. A pair of left and right frame members 2, 2 ′ and 2 ″ are juxtaposed so as to face each other. And lateral connecting members 10, 10 ', 10 "that are joined together between the upper ends of the left and right frame members.

First, the frame material 2 will be described in detail. The frame material had a substantially self-shaped cross-sectional shape in which an inward opening 5 and an outward opening 4 were integrally formed vertically. It is formed of an elongated member. The term “inward” used in the present specification means a direction toward the center of a pair of left and right frame members that are juxtaposed so as to face each other, and the term “outward” means a pair of left and right frames. It means the direction from the center of the material to the outside.

Guide rollers 7 and 8 are attached so as to be housed in the inward opening 5. The guide roller 7 has a function of supporting the weight of the adjacent frame member 2'by mounting it, and the guide roller 8 is attached slightly behind the guide roller 7 to extend the frame member 2 '. It sometimes has the function of preventing it from falling down. These allow the frame members of each set to smoothly expand and contract with each other. Therefore, as shown in FIG. 3 and FIG. The mounting members are displaced and the mounting heights are also slightly displaced, so that they can be rotated about an axis parallel to the lateral connecting members 10, 10 ', 10 ". The guide roller is configured to contact and rotate with respect to the upper surface or the lower surface of the outward opening.

The frame member 2 ′ has the same shape as the frame member 2, but is inserted into the frame member 2 so as to fit in the inward opening 5 of the frame member 2. Further, the frame member 2 ″ has the same shape as the frame members 2 and 2 ′, but is inserted into the frame member 2 ′ so as to fit in the inward opening 5 ′ of the frame member 2 ′. The frame members of each group have the same shape, but only the dimensions are different, so that the frame members of each group that are adjacent to the inside can be expanded and contracted sequentially, and the frame members of each group can expand and contract with each other. The guide rollers 7 ', 8'and 9'having the same functions as those of the frame member 2 are attached to the inward openings 5'of the pair of left and right frame members 2'. The guide roller is configured so as to contact and rotate with respect to the upper surface or the lower surface of the outward opening of each pair of frame members adjacent to the inner side. 9'is attached as shown, and members corresponding to the guide rollers 7 and 8 are not provided.

In FIG. 4, reference numeral 12 is a base frame with wheels 11 attached to the lower portion 6 of the frame member 2. Reference numerals 13 and 14 denote a pair of front and rear sprockets attached to the outward opening 4 of the frame member 2. Chains 15 and 15 are stretched on the front and rear sprockets 13 and 14, respectively, and the chains are driven via a common rotary shaft 17 that is rotated by a motor 16 provided on the frame 12. . The chain is connected to the frame member 2'by a connecting portion 18 provided at an appropriate portion thereof. A pair of left and right rope sheaves 19 and 20 are attached to the front of the guide roller 9'in the inward openings of the pair of left and right frame members 2 '. A rope 21 is stretched on each of the front and rear rope sheaves 19, 20. The rope is connected to the frame member 2 via a connecting portion 22 provided at an appropriate portion on the lower side, and at an appropriate portion on the upper portion. It is connected to the frame member 2 ″ via the connecting portion 23 provided.

In the telescopic frame structure having the above structure, the motor 16 is driven to rotate the chain 15 to expand or contract the frame member 2 ′ fixed to the connecting portion 18. At this time, the rope 21 is rotated through the joint portion 22, and the frame member 2 ″ is extended or contracted through the joint portion 23.

The belt 25 rotated by driving a motor pulley 24 provided at the rear end of the frame 12 includes pulleys 26 and 27 provided at the front end of the frame member 2 ″, a pulley 28 provided at the rear end, and a frame member 2 ′. The pulleys 29, 30, 31 provided at the front, middle, and rear ends of the frame, the take-up roller 32 provided at the front end of the frame member 2, and the guide pulleys 33, 34 provided in front of the motor pulley are stretched in order. There is.

When using the above-mentioned telescopic belt conveyor, after driving the motor 16 to extend the frame members 2 ′ and 2 ″ with respect to the frame members 2 and 2 ′, respectively, to make the conveyor machine length to a required length, The motor pulley 24 is driven, and when the belt 25 is rotated by this, the belt 25 slides on the lateral connecting members 10, 10 ', 10 ".

When not in use, the frame members 2 ′ and 2 ″ are reduced with respect to the frame members 2 and 2 ′ so that the conveyor machine length can be minimized and stored.

In the above embodiment, three pairs of left and right frame members are used, and the frame members of each group are sequentially inserted so that they can expand and contract. However, the number of stages of the frame members to be assembled is not limited to this. Not a thing. In addition, a roller that supports the weight of the adjacent frame material by mounting it on the inward opening of each frame material is attached, but it is also possible to install another guide member in addition to the roller or instead of the roller. Is.

[0018]

[Effect of device]

 As described above, the present invention is composed of a combination of elongated frame members of the same shape, so that it is easy to assemble.Because all parts can be prepared as standard products, parts management is easy and production is easy. It is possible to improve the cost and reduce the cost. Even when it is used, the frame material is formed of an elongated frame material having a substantially self-shaped cross section in which the inward opening portion and the outward opening portion are integrally formed, so that the bending rigidity is high. In addition, since the frame members of each set that are adjacent to the inside can be expandably inserted into the upper inward opening of each set of frame members, the adjacent frames can be expanded and contracted without taking space in the width and height directions. Since it can be inserted as much as possible, there is an effect that the telescopic frame structure can be made compact.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing the left and right frame members and a lateral connecting member separately in the present invention.

FIG. 2 is a view similar to FIG. 1, but with cross-sections taken at different positions in the longitudinal direction.

FIG. 3 is a plan view showing a telescopic belt conveyor having a telescopic frame structure according to the present invention, showing a frame extended state.

FIG. 4 is a front view of that of FIG.

FIG. 5 is a front view of the same contracted state.

FIG. 6 is an enlarged cross-sectional view of a main part of the telescopic belt conveyor of FIG. 3, omitting a belt return side.

FIG. 7 is a view similar to FIG. 6, but at different positions in the longitudinal direction.

FIG. 8 is likewise a sectional view at different positions in the longitudinal direction.

[Explanation of symbols]

 1 Conveyor frame 1'Conveyor frame 1 "Conveyor frame 2 Frame material 2'Frame material 2" Frame material 4 Outward opening 4'Outward opening 4 "Outward opening 5 Inward opening 5'Inward opening 5 "inward opening 7 guide roller 7'guide roller 8 guide roller 8'guide roller 9 guide roller 9'guide roller 10 lateral connecting material 10 'lateral connecting material 10" lateral connecting material 25 belt

Claims (2)

[Scope of utility model registration request] 1. A pair of left and right elongate members in which an inward opening portion and an outward opening portion are integrally formed vertically and which has a substantially self-shaped cross section and in which the inward opening portions are juxtaposed so as to face each other. By using multiple sets of frame members, the frame members of each set that are adjacent to the inside can be expanded and contracted sequentially into the upper inward opening of each set of frame members, and the frame members of each set can expand and contract with each other. The telescopic frame structure of the telescopic belt conveyor is formed by connecting the horizontal connecting members integrally between the upper ends of the inward openings of the frame members of each set. 2. A guide roller that rotates in contact with a guide roller guide portion on the upper surface or the lower surface of the outward opening of each pair of frame members adjacent to the inside is attached to the inward opening. The elastic frame structure of the elastic belt conveyor according to 1.