JPH08549B2 - Crawler traveling device, manufacturing method and manufacturing device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crawler traveling device in which a large number of crawler members are pin-connected in the longitudinal direction of the crawler to form an endless ring, a manufacturing method thereof and a manufacturing device thereof.

[0002]

2. Description of the Related Art A conventional crawler traveling device of this type is disclosed in Japanese Utility Model Laid-Open No. 3-47290. In this conventional technique, two triangular plate-shaped mounting portions are provided on the non-grounding surface side of the shoe plate to fix a pair of left and right shoe links, and the non-grounding surface and the grounding surface of the shoe plate are made of elastic material such as rubber. A crawler member of a unit product is formed by covering with a body, a large number of the crawler members are arranged in the crawler longitudinal direction, and adjacent shoe links are connected by pins.

Further, the crawler member employs a method and apparatus for vulcanizing and adhering an elastic body by disposing shoe plates one by one in one die.

[0004]

In the above prior art, the crawler traveling device is a set of a large number of independent unit products, and although it is easy to handle as a single product, one crawler traveling device is manufactured one by one. Therefore, the handling at the time of manufacturing cannot be performed efficiently, and it is difficult to mass-produce, so that the manufacturing cost is high.

The present invention provides a crawler traveling device which is easy to manufacture and handle by integrally forming the crawler unit parts adjacent to each other in the longitudinal direction of the crawler with thin wall parts which are longer than the interval and are loose. The purpose is to It is another object of the present invention to provide a method of manufacturing a crawler traveling device and a manufacturing apparatus thereof, which enables mass production by making it possible to simultaneously manufacture a large number of crawler unit parts in the crawler longitudinal direction.

[0006]

Specific means for solving the problems in the present invention was Means for Solving the Problems] A pair of left and right shoes link 5 and through the mounting portion 4 to the non-ground surface 3 side of the shoe plate 2
By projecting and fixing the whole outer surface of the shoe plate 2 including the non-grounded surface 3 and the grounded surface 6 with an elastic body 7 such as rubber.
With this elastic body 7, a lug 18 is integrally formed on the grounding surface 6 side, and a large number of these are arranged in the front-rear direction so that adjacent elastic bodies 7
Are integrally molded by connecting them over substantially the entire length of the front and rear edges, and the pins 15 are formed by superposing the ends of the adjacent shoe links 5.
In a crawler traveling apparatus for coupling, of the elastic body 7
Form a ridge 30 along the edge near the front and rear edges of the non-grounded surface.
The elastic body 7 is connected from the bottom of the groove 30.
That is, the thin portion 23 is integrally molded so as to be longer than the interval between the elastic bodies 7 and slack .

As a concrete means for solving the problem in the method of the present invention, the shoe plate 2 having a pair of left and right shoe links 5 fixed to the non-ground surface 3 side is provided with the cavity 12 of the mold 11.
A plurality of outer surfaces including a non-grounded surface 3 and a grounded surface 6 of the shoe plate 2 inserted in the cavity 12 in the front-rear direction.
Manufacture of crawler traveling device that inflows elastic material covering surface
A method of attaching the pair of left and right shoe links 5
Separated from the non-grounded surface 3 of the shoe plate 2 via the hook 4
Then, lift it and fix it, and then attach the elastic material
Let it flow into the cavity 12 from the left and right outer sides of the port 2 ,
While squeezing the elastic material between the shoe plates 2,
Non-grounded surface 3 of fuse plate 2 and raised shoeli
The elastic material is also made to flow into the space between the link 5 and the link 5 .

The concrete means for solving the problems in the apparatus of the present invention is to use a plurality of split molds 11 to move the shoe plate 2 forward.
Forming multiple cavities 12 that can be arranged rearward
Ri, ungrounded surface 3 and the shoe plate 2 the shoe plate 2 which is fixed a pair of left and right shoes link 5 is inserted into the <br/> cavity 12 through the mounting portion 4 of the protruding non-grounded surface 3 side A shoe plate manufacturing apparatus for manufacturing a crawler traveling device in which the entire outer surface including the ground contact surface 6 is covered with an elastic material.
Each die of the cavity 12 is attached to the split mold on the side of the contact surface 6.
The split mold mating surface 31 is located at a position corresponding to the two layouts.
Material shoe part 1 protruding toward the non-ground surface 3 side
2A, for the split mold on the shoe plate non-ground surface 3 side
A diaphragm facing the material diaphragm 12A with a gap 32 therebetween.
The concave mold 33 and the split mold mating surfaces 31 located on the front and rear sides thereof
Recessed line forming portion 3 protruding further from the shoe plate contact surface 6 side
3 is to have .

[0009]

In the crawler traveling device 16, a large number of crawler unit portions 1 are arranged in the longitudinal direction of the crawler, and the adjacent crawler unit portions 1 are connected by the thin portion 23, and can be handled as one article. The crawler traveling device 16 is
A pair of left and right shoe links 5 is previously attached to the mounting portion 4 formed to project toward the non-grounded surface 3 side of the shoe plate 2 or the non -grounded surface 3
The shoe plate 2 is lifted and fixed in advance, and a large number of such shoe plates 2 are arranged in the cavity 12 of the mold 11 in the longitudinal direction of the crawler so that the shoe plate 2 is elastically attached to the non-grounded surface 3 side and the grounded surface 6 side. Inflow of the material forming the body 7,
A large number of connected crawler unit portions 1 are formed at one time, and the shoe links 5 adjacent to each other in the longitudinal direction of the crawler are connected by a pin 15 to form an endless crawler traveling device 16.

A material narrowing portion 12A is formed at a position corresponding to the center between the shoe plates 2 of the cavity 12.
As a result, the crawler unit 1 of the crawler traveling device 16 is partitioned in the crawler longitudinal direction and is longer than the interval between the elastic bodies 7.
And it becomes a state of being connected by the thin portion 23 in a loose state ,
It can be bent along the wheels.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. In the first embodiment shown in FIGS. 1 to 6, 16 is a large number of crawler unit portions 1A in the crawler longitudinal direction (front-back direction).
It is a crawler traveling device configured by connecting (corresponding to a conventional crawler member), and is engaged with the drive wheel 20 in an endless annular shape and wound around the driving wheel and the rolling wheel.

The crawler unit 1A has a mounting portion 4 formed by fixing two substantially triangular plates on each of the left and right sides to the non-grounded surface (inner peripheral side of the crawler traveling device) 3 of the flat shoe plate 2. The left and right shoe links 5 are fixed to the left and right mounting portions 4, respectively. The shoe link 5 is bent in the middle portion in the crawler longitudinal direction, the front and rear portions are displaced to the left and right, and has a pin hole 17 for inserting the pin 15 at the front and rear ends. A large number of crawler unit parts 1A are connected in the longitudinal direction of the crawler, and adjacent shoe links 5 are connected to each other by superposing one front part on the other rear part and penetrating a pin 15 on both. ing.
The pin 15 serves as an engaging portion that engages with the drive wheel 20.

The shoe plate 2, the triangular plate of the mounting portion 4, the shoe link 5 and the like are made of metal, plastic or the like and are welded, adhered or integrally molded, and the non-grounded surface 3 and the grounded surface of the shoe plate 2 are formed. The (outer peripheral side of the crawler traveling device) 6 is covered with an elastic body 7 such as rubber or plastic. The elastic body 7 covers the entire circumference of the shoe plate 2 including front, rear, left and right side surfaces, and one or a plurality of lugs 18 corresponding to the shoe plate 2 are projected on the grounding surface 6 side by integral molding.

In the non-grounded surface 3 of the shoe plate 2, the elastic body 7 covering the non-grounded surface 3 is formed continuously from the grounded surface 6 through the periphery of the shoe plate 2, except for the mounting portion 4. It is integrally formed on the entire non-grounded surface 3 without breaks. That is, the mounting portion 4 is
Non-ground plane 3 of the shoe 2 and the shoe play of the left and right shoe links 5.
The left and right shoe links 5 should be
It is lifted and fixed from the view plate 2 and is not grounded.
The elastic body 7 covering the surface 3 is attached to the shoe plate 2 and the left and right shoes.
-It also exists between the link 5 and elasticity.
The body 7 is squeezed from the left and right outer sides of the left and right shoe links 5.
-The inside of the link 5 is integrally molded. Supre
Non-ground plane 3 of the shoe 2 and the shoe play of the left and right shoe links 5.
As for the height of isolation from the side 5A on the side of the gate, the non-ground plane 3 is shown in FIG.
The thickness is approximately the same as the thickness of the elastic body 7 to be covered.

The elastic member 7 forms a thin portion 23 between the adjacent crawler members 1A. The elastic member 7 around the shoe plate 2 and the elastic member 7 of the thin portion 23 are integrally formed.
The crawler member 1A is connected by the thin portion 23. That is, the elastic body 7 is the non-ground surface 3 of the shoe plate 2.
And the entire outer surface including the ground plane 6 is covered with this elastic body 7.
A lug 18 is integrally formed on the ground contact surface 6 side, and
Forming a concave streak portion 30 along the edge near the front and rear edges of the surface on the ground contact side
are doing. The thin-walled portion 23 is formed by connecting the adjacent elastic bodies 7 to the front and rear edges.
Of the elastic body 7 on the non-grounded side.
From the bottom of the groove 30 near the front and rear edges of the surface to the elastic body 7
It is integrally molded in a long and loose state.

In FIGS. 5 and 6, 8A is a crawler manufacturing apparatus, and the mold 11 is divided into a fixed split mold 11A and a movable split mold 11B, 11C which is vertically movable.
And has a cavity 12 formed therein. The cavity 12 of the mold 11 is a long one corresponding to the entire length of one crawler traveling device 16. The fixed mold 11A has a recess 13 into which the shoe link 5 is inserted. By inserting and mounting the shoe link 5 in the recess 13, the shoe plate 2 is placed at a predetermined position in the cavity 12 of the split molds 11B and 11C. Can be placed in. The surface of the fixed mold 11A on the cavity 12 side is substantially flush with the edge of the shoe link 5 on the shoe plate 2 side.

The cavities 12 corresponding to the crawler unit portions 1A are continuous with each other in the longitudinal direction of the crawler, and at the position corresponding to the center between the arrangements of the shoe plates 2, the crawler unit portion 1A is divided. A material narrowing portion 12A to be formed is formed. That is, shoe plate contact
For split molds 11B and 11C, which are split molds on the ground 6 side,
Corresponding between each shoe plate 2 arrangement of cavity 12
From the split mold mating surface 31 to the position, the shoe plate is not grounded
The material drawing portion 12A is formed so as to project toward the surface 3 side,
To the fixed mold 11A, which is a split mold on the non-grounded surface 3 side,
A diaphragm facing the material diaphragm 12A with a gap 32 in between.
The concave portion 33 and the split mold mating surface 3 located on the front and rear sides thereof
Recessed line forming part protruding from the shoe plate ground surface 6 side from 1
And 34 are formed .

Then, the molds 11A, 11B and 11C.
The thin portion 23 is formed by the material drawing portion 12A and the drawing concave portion 33 of
The elastic body 7 and the thin wall portion 23 are connected by the recessed portion forming portion 34.
The partial ridge portion 30 is formed. In order to manufacture the crawler unit 1A, first, a mounting portion 4 is provided on the non-grounded surface 3 side of the shoe plate 2, and a pair of left and right shoe links 5 are lifted and fixed via the mounting portion 4, Prepare many.

After assembling in this way, these shoe links 5 are inserted into the recesses 13 of the fixed mold 11A of the mold 11, the molds 11B and 11C are closed and the shoe plate 2 is surrounded by the cavity 12, and A slug 26 made of an elastic material such as rubber flows into the cavity 12, and the elastic body 7 is vulcanized and adhered to the non-grounded surface 3 and the grounded surface 6 side of the shoe plate 2. This slag 26 is made by preforming a strip plate,
It may be arranged on the non-grounded surface 3 side and the grounded surface 6 side of the shoe plate 2, and the shortage may be press-fitted by a press.

When the mold 11 is opened after the vulcanization and the crawler unit 1A is taken out, many crawler unit 1A are in a continuous state in the crawler longitudinal direction, and the shoe links 5 of each crawler unit 1A. Is connected by a pin 15 to form a crawler traveling device 16 as a finished product. The mold 11 may be configured such that the molds 11B and 11C are opened and closed to the left and right.

7 and 8 show the second embodiment of the present invention, in which the crawler unit 1B of the crawler traveling device 16 has the mounting portions 4 formed in the shape of two right and left corner columns. The column-shaped mounting portions 4 are arranged in an overlapped state or a non-overlapped state with being shifted in the crawler longitudinal direction in a side view. The mold 11 of the crawler manufacturing apparatus 8B of the second embodiment has a fixed mold 11A having a protrusion 25 fitted between the left and right shoe links 5, and the molds 11B, 1
1C is divided corresponding to the upper surface of the protrusion 25, and the upper mold 1
The material injection port 28 is provided in 1C. 30 is the piston 2
9 shows a guide.

The thin molds 11A, 11B and 11C are thin.
The shape for forming the meat portion 23 is the same as that of the first embodiment.
It is like. The crawler manufacturing apparatus 8B is manufactured by fitting the left and right shoe links 5 fixed to the shoe plate 2 to the protrusions 25 of the fixed mold 11A, closing the molds 11B and 11C, and then pouring the material for the upper mold 11C. The slug 26 placed on the upper side of the inlet 28 is pushed by the piston 29 to flow from the material inlet 28 into the cavity 12.

The slug 26 is a shoop in the cavity 12.
Left and right outer sides of the shoe plate 2 on the non-grounded surface 3 side of the rate 2
When it is introduced from one side, the inside of the cavity 12 is a material narrowing part.
12A, etc., and the crawler unit portion 1B is substantially divided into
The slag 26 is squeezed by the material squeezing section 12A and the like.
While being in response to the resistance, a pair of left and right shoe link 5
Lift the shoe plate 2 away from the non-ground surface 3
Since it is installed, it is lifted up with the non-ground plane 3 of the shoe plate 2.
Between the surface 5A of the shoe link 5 that has been struck, the slag 2
6 smoothly flows in.

FIG. 9 shows a third embodiment of the present invention.
The crawler unit 1C has a mounting portion 4 formed in a front and rear horizontal plate shape. The front and rear horizontal plate-shaped mounting portions 4 connect the left and right shoe links 5, respectively.
Is bent and the front-to-back spacing is different, so that one of the front and back is longer than the other. FIG. 10 shows a fourth embodiment of the present invention. In the crawler unit 1D, the front and rear ends of the shoe plate 2 are bent toward the non-grounded surface 3 side to form a U-shaped cross section, and the protruding front and rear ends are formed. A mounting portion 4 is provided, and the left and right shoe links 5 are fixed to each mounting portion 4 at the same time. Further, the shoe plate 2 is formed by cutting out both left and right side portions at both front and rear ends so that both left and right side portions do not protrude from the surface of the elastic body 7.

Incidentally, if the front and rear mounting portions 4 of the crawler unit 1D are cut out in the same manner as the both ends of the space between the left and right shoe links 5, the shoe plate 2 and the shoe links will be the same. 5 and 5 can be easily formed by integral molding. However, there is no problem if the shoe plate 2 has a notch in its entire length and protrudes from the surface of the elastic body 7.

The present invention is not limited to the above embodiment, but can be variously modified. For example, a large number of through holes are formed in the shoe plate 2, and the elastic body 7 is penetrated from the non-ground plane 3 to the ground plane 6 to reduce the weight of the shoe plate 2 and improve the peel resistance of the elastic body 7. You may do it. Further, the material narrowing portion 12A is preferably located at the center between the adjacent shoe plates 2, but may be biased to one side.

Further, the shoe link 5 is formed of a flat plate having no bent portion, and the left and right spaces thereof are made different in size to make two types, and these two types are alternately arranged in the crawler longitudinal direction to provide a large space. Shoe link 5 and Shoe link 5 with a small gap
May be superimposed and connected by the pin 15. Also, mold 1
The cavity 12 in 1 may be formed in an arc shape instead of a straight shape in the crawler longitudinal direction.

[0028]

According to the present invention described in detail above, the shoe
The left and right sides of the rate 2 on the side of the non-grounded surface 3 via the mounting portion 4.
The pair of shoe links 5 are fixedly protruded and fixed to the shoe plate.
The entire outer surface including the non-ground plane 3 and the ground plane 6 of 2 is made of rubber or the like.
The elastic body 7 is covered with the elastic body 7 and the lug 1 is provided on the ground contact surface 6 side.
8 are integrally molded, and many of them are arranged in the front-rear direction, and
Connect the elastic bodies 7 in contact with each other over almost the entire length of the front and rear edges.
The end portions of the shoe links 5 that are integrally formed and are adjacent to each other
It is a crawler traveling device that superposes
The edges of the elastic body 7 near the front and rear edges of the non-grounded surface.
A ridge portion 30 is formed along the ridge portion 30 and elastic from the bottom of the ridge portion 30.
The thin portion 23 connecting the body 7 is made longer than the interval between the elastic bodies 7.
In addition, since it is integrally molded in a loose state, the crawler traveling device 16 that is long in the longitudinal direction of the crawler can be molded at one time, and the crawler unit 1 can be connected.
To prevent sinking while traveling in a mud,
It is possible to prevent the mud from riding on the inner circumference of the device 16.
Also, the thin-walled portion 23 for performing such an action is formed by an elastic body.
Even if it does not project too much from the surface of the non-grounded side of 7,
It can be formed in a state of being longer and looser than the interval between the sex bodies 7.

A pair of left and right shoes are provided on the non-ground plane 3 side.
The shoe plate 2 to which the link 5 is fixed to the mold 11
Many cavities 1 are inserted into the tee 12 in the front-back direction.
2 includes the non-ground plane 3 and the ground plane 6 of the shoe plate 2.
A crawler running device in which an elastic material covering the entire outer surface is introduced.
And a pair of left and right shoe links 5.
The non-ground surface 3 of the shoe plate 2 via the mounting portion 4
The elastic material is separated from the
Flow into the cavity 12 from the left and right outer sides of the fuse plate 2.
Insert and squeeze the elastic material between each shoe plate 2.
And the non-ground surface 3 of the shoe plate 2 is lifted.
The elastic material also flows into the shoe link 5.
In the inlet material is therefore inhibited to the left and right shoe link 5
It is possible to cover the non-grounded surface 3 of the shoe plate 2 without
By squeezing this elastic material between the shoe plates 2.
Can reliably flow into the entire cavity 12 and is thin
The part 23 can also be formed.

Further, shoe play is performed with a plurality of split molds 11.
Forming a cavity 12 that allows multiple glands 2 to be arranged in the front-rear direction
Via the mounting portion 4 protruding toward the non-ground plane 3 side.
Shoe plate 2 to which a pair of left and right shoe links 5 are fixed
Of the shoe plate 2 by inserting the
The entire outer surface including the non-ground plane 3 and the ground plane 6 is covered with an elastic material.
A manufacturing apparatus of a crawler traveling apparatus for covering, Shoup
Each die of the cavity 12 is attached to the split mold on the side of the rate grounding surface 6.
-Split mold mating surface at a position corresponding to the two plate arrangements
Material diaphragm protruding from 31 toward shoe plate non-ground plane 3 side
Dividing the shoe plate non-grounding surface 3 side with a groove 12A
The mold is opposed to the material narrowing portion 12A via a gap 32.
Matching the split dies located on the front and rear sides of the throttle recess 33
Recessed line projecting from the surface 31 to the shoe plate contact surface 6 side
Since they have formed part 33 can be mass produced a large number of crawler unit parts 1 at a time, and a crawler traveling apparatus 16 of the elongate can be molded at one time in the crawler longitudinal direction, moreover Is the thin portion 23 the surface of the elastic body 7 on the non-grounded side?
Longer than the elastic body 7 interval without protruding too much
In addition, it can be formed in a loose state.

[Brief description of drawings]

FIG. 1 is a perspective view showing a crawler traveling device according to a first embodiment of the present invention.

FIG. 2 is a sectional front view of the same.

FIG. 3 is a plan view of the same.

FIG. 4 is a sectional side view of the same.

FIG. 5 is a sectional front view of the crawler manufacturing apparatus.

FIG. 6 is an enlarged cross-sectional view of a material narrowing portion.

FIG. 7 is a perspective view showing a second embodiment of the present invention.

FIG. 8 is a sectional front view showing the crawler manufacturing apparatus.

FIG. 9 is a perspective view showing a third embodiment of the present invention.

FIG. 10 is a perspective view showing a fourth embodiment of the present invention.

[Explanation of symbols]

 1 Crawler unit 2 Shoe plate 3 Non-grounding surface 4 Mounting part 5 Shoe link 6 Grounding surface 7 Elastic body 8 Crawler manufacturing device 11 Mold 12 Cavity 12A Material narrowing part 16 Crawler running device 23 Thin part

Claims (3)

[Claims] 1. The non-ground plane (3) of the shoe plate (2)
Mounting portion on the side (4) and through a pair of left and right shoe link (5) projecting fixed, rubber all outer surface including the non-contact surface of the shoe plate (2) (3) and the ground plane (6) Covered with an elastic body (7) such as
(6) integrally molded lugs (18) on the side, and arranging a large number of these back and forth direction <br/> direction, adjacent elastic bodies (7) before and after edge comrades
Of the shoe links (5) adjacent to each other and integrally molded together , and the end portions of the adjacent shoe links (5) are overlapped with each other to form the pin (15).
A crawler traveling device that is connected by means of a front and rear edges of the surface of the elastic body (7) on the non-ground side.
Forming a ridge (30) along the bottom of the ridge (30)
From the elastic body (7) to the thin portion (23) connecting the two
A crawler traveling device characterized by being integrally molded in a state of being longer than the body (7) interval and being slack . 2. A shoe plate (2) having a pair of left and right shoe links (5) fixed to the non-ground surface (3) side is attached to a mold (1).
Insert a large number in the front-back direction into the cavity (12) of 1),
A method for manufacturing a crawler traveling device in which an elastic material that covers the entire outer surface of the shoe plate (2) including the non-grounded surface (3) and the grounded surface (6) flows into the cavity (12).
And attach the pair of left and right shoe links (5) to the mounting portion (4).
Through the non-ground plane (3) of the shoe plate (2).
Lift up and fix it firmly, and then push the elastic material
From the left and right outer sides of the rate (2) into the cavity (12)
Inflow and squeeze the elastic material between each shoe plate (2)
While the non-ground plane (3) of the shoe plate (2)
Elastic material between the lifted shoe links (5)
A method for manufacturing a crawler traveling device, characterized in that: 3. Shoe play with a plurality of split molds (11)
Cavities (1
Forms a 2), wherein the non-ground surface (3) attachment portion via the (4) of the pair of right and left projecting side shoe link (5) shoe to fix the plate (2) cavity (12)
All outer surface including a non-contact surface of the shoe plate (2) is inserted (3) and the ground plane (6) A manufacturing apparatus of a crawler traveling apparatus for coating an elastic material within the shoe plate ground plane (6 ) Side split mold cavity
Position corresponding to each shoe plate (2) arrangement of (12)
The shoe plate is not in contact with the split mold mating surface (31)
It has a material squeezing part (12A) protruding to the ground (3) side,
The above material is used for the split mold on the shoe plate non-grounding surface (3) side.
A diaphragm that faces the diaphragm (12A) with a gap (32) in between.
Split mold mating surfaces located at the front and back of the recess (33)
Projected from (31) to the shoe plate contact surface (6) side
An apparatus for manufacturing a crawler traveling device, which has a groove forming portion (33) .