KR101097766B1 - Linkage of caterpillar - Google Patents

Abstract

Disclosed is a caterpillar tip connecting device coupled to a connecting shaft protruding from a side surface of a track unit constituting an endless track, thereby joining the adjacent track units. The front end connecting device includes a body formed through the connecting shaft insertion hole so that the connecting shaft of each of the adjacent track units can be inserted; Two or more wedges installed between the connection shaft insertion holes of the body, the wedges being opened toward the connection shaft insertion holes; And fixing means for fixing two or more of the wedges in a gaped position. Therefore, not only the maintenance is easy but also the separation of the track unit by vibration and shock can be prevented.

Caterpillar, tip connection

Description

Endless track connecting device {Linkage of caterpillar}

The present invention relates to an endless track end connection device, and more particularly to a front end connection device for connecting the endless track units constituting the endless track used in the lower portion of the tank, mid- and long-term.

Caterpillar is a tank, self-propelled artillery, heavy equipment, etc. are mounted in place of the wheel, in addition to the general road is to be provided for free running in the open field, mountainous areas and the like.

1 is a partial perspective view of a conventional caterpillar.

As shown in FIG. 1, the conventional endless track is composed of a plurality of orbital units 5 connected to each other by the tip connecting device 2. The track unit 5 is coupled so that the connecting shaft for coupling with the distal end connecting device 2 is projected in pairs on both sides, and the pad 4 is coupled to the nut 6 at the bottom thereof.

The connecting shaft 7 is fitted to the distal end connecting device 2 and then fixed by the bolt 1 and the wedge nut 3. A portion of the shaft is chamfered so that the connecting shaft 7 can be caught by the wedge nut 3.

2 is a cross-sectional view of the distal end connecting device of FIG.

As shown in FIG. 2, the wedge nut 3 is fixed to be in contact with the chamfered portion of the connecting shaft 7, thereby preventing the tip connecting device 2 from falling off from the connecting shaft 7. However, in the case of the caterpillar used in the equipment that travels at high speed in a state where the road surface is very poor, vibration or shock is continuously applied. In this case, there is a disadvantage in that the tightening between the bolt 1 and the wedge nut 3 is loosened and gradually released. In particular, when the assembly in the field, when the foreign matter, such as sand, soil penetrated between the wedge nut (3) and the bolt (1) has a disadvantage that can not be tightened with a constant torque more easily released. This causes a big problem in the war, such as the loss of combat power of heavy equipment such as tanks.

In addition, as shown in FIG. 2, in order for the wedge nut 3 to be coupled smoothly, the chamfered portions of the connecting shaft 7 should be positioned obliquely to each other. However, since the connecting shaft 7 is assembled in the fitted state so that it cannot be rotated by the attraction force to the track unit 5, the connecting shaft 7 cannot be easily rotated. Therefore, as shown in FIG. 3, the unit assemblies cannot be assembled in a state where they are parallel to each other, and the assembly is required in a state where a constant angle is maintained, so that assembly is too difficult. In addition, the maintenance in the field has the disadvantage that it takes a considerable time and labor to assemble.

The present invention does not solve the repeated vibration and shock, and to provide an endless connection device of the endless track much easier to assemble.

The present invention is to solve the above problems, in the endless track end connection device for coupling the adjacent track unit by coupling to the connecting shaft protruding to the side of the track unit constituting the infinite track, each of the adjacent track unit A body formed through the connection shaft insertion hole so that the connection shaft can be inserted therein; Two or more wedges installed between the connection shaft insertion holes of the body, the wedges being opened toward the connection shaft insertion holes; And a fixing means for fixing two or more of the wedges at a position apart from each other.

Here, the fixing means, a wedge pin formed in the shape of a pin sandwiched between the wedge; includes, the body, a pin insertion hole is formed so that the wedge pin is inserted, the wedge pin is inserted into the pin insertion hole And then rotated and locked.

The wedge pin, a wedge pressing portion protruding a portion of the cross section; And a locking portion having a part of the cross section protruding therefrom, wherein the body is formed with a separation prevention portion which locks the locking portion when the wedge pin is rotated after the wedge pin is inserted into the insertion hole.

 And a rotation stopper for positioning the locking portion and the release preventing portion to be locked to each other.

The rotation stopper may include a pin stopper protruding from the wedge pin; And a body stopper protruding from the body to engage the pin stopper.

It further includes a pin rotation preventing device for preventing the wedge pin to rotate in the locked position.

The pin anti-rotation device, anti-rotation bolt coupled to the body to apply pressure to the side of the wedge pin; includes.

The pin anti-rotation device, is installed between the anti-rotation bolt and the body, the contact spring for applying a contact pressure in the opposite direction of the rotation preventing bolt is released; further includes.

One end adjacent to the orbital unit of the wedge is hinged to the body.

At a position adjacent to the orbital unit of the body, it is preferable that a recessed groove is formed by opening a portion of the upper surface of the body so that a part of the end of the wedge is exposed.

At the contact portion of the wedges in which the recess is located, a recess is formed in which a recess tool can be fitted.

As described above, according to the present invention, various effects including the following can be expected. However, the present invention does not necessarily achieve the following effects.

First, as such, the wedge is not gradually locked in contact with the connecting shaft, but moves to the side and locks at once, so that the chamfered portion of the connecting shaft can be coupled in a state where the vertical state is maintained. This is much easier than in the prior art.

In addition, it is possible to prevent the wedge pin from being separated even when vibration and shock are applied, thereby preventing the tip connecting device from being separated.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the following description of the present invention, a detailed description of known functions and configurations will be omitted so as not to obscure the gist of the present invention.

Figure 4 is a partial perspective view of the endless track coupled to the tip connecting device of an embodiment of the present invention, Figure 5 is an exploded perspective view of the tip connecting device of FIG.

The tip connecting device 100 according to the embodiment of the present invention is coupled to the connecting shaft 7 protruding to the side of the track unit 5 constituting the infinite track, and combines the adjacent track unit (5).

The connecting shaft (7) is formed by chamfering (7a) a portion on the outer surface of the shaft for fixed coupling with the tip connecting device (100).

The front end connecting device 100 includes a body 110 through which a connecting shaft insertion hole 111 is inserted so that the connecting shaft 7 of each of the adjacent track units 7 can be inserted, and at least two of the body Is installed between the connecting shaft insertion hole 111, the wedge 120 is installed so as to open toward the connecting shaft insertion hole, and two or more fixing means for fixing the wedge in the open position do.

As described above, the body 110 has two connection shaft insertion holes 111 formed therethrough, and as shown in FIG. 7, the wedges 120 are provided between the connection shaft insertion holes 111. Installation portion 112 is located between the connecting shaft insertion hole 111. The wedge mounting portion 112 is formed by communicating between the connecting shaft insertion hole 111. On the opposite side of the track unit of the body, the anti-rotation bolt installation portion 114 is provided with the anti-rotation bolt 151 is formed. The anti-rotation bolt installation unit 114 is formed by passing through the bolt hole 114a to which the anti-rotation bolt 151 can be coupled, and supports the contact spring 152 on the inner wall of the bolt hole 114a. The wall 114b protrudes and is formed.

The upper surface of the wedge mounting portion 112 of the body 110 is formed by penetrating the pin insertion hole 113 so that the wedge pin 130 is inserted in. The body stopper 113b is partially inside the pin insertion hole 113. It is formed to protrude, and the separation prevention portion 113a is formed, the separation prevention portion 113a is a locking portion 133 is rotated when the wedge pin is rotated after the wedge pin 130 is inserted into the pin insertion hole 113. The body stopper 113a protrudes from the body so as to be engaged with the pin stopper 131, and when the body stopper 113a and the pin stopper 131 are engaged with each other, the catching part 133 and the The departure prevention part 113a is located in the position which locks each other.

In addition, a hinge pin insertion hole 116 through which the hinge pin 140 is inserted is formed through the upper surface of the body 110, and a portion of the end of the wedge is exposed at a position adjacent to the track unit of the body. A portion of the upper surface of the body is opened so that the recess 115 is formed.

Two wedges 120 are installed facing each other, one end adjacent to the orbital unit of the wedge is hinged to the body by a hinge pin 140. Therefore, the hinge pin insertion hole 121 for the wedge is penetrated at one end so that the hinge pin 140 can be inserted therein. In addition, when the wedge pin 130 is inserted through the pin insertion hole 113, the pin joint portion 122 in contact with the wedge pin 130 is formed concave. At this time, when the wedge pin 130 is rotated so that the wedge pressing portion 132 and the pin joint portion 122 are in contact with each other, one end of the hook portion 123 of the wedge 120 is connected to the insertion shaft insertion hole 111. It protrudes toward, and as a result, the engaging portion 123 is located in the chamfered portion of the connecting shaft, it is possible to prevent the connecting shaft (7) from falling out.

In addition, in the contact portion of the wedge in which the grooved groove is located is formed a recessed concave portion 124 that can be fitted with a tool for the rim.

The fixing means 130 is implemented by a wedge pin (hereinafter, also referred to as wedge pin 130) formed in a pin shape sandwiched between the wedges 120. The wedge pin is inserted into the pin insertion hole 113 is rotated and locked.

Looking in more detail, the wedge pin 130 is formed of a head portion 134 and the body portion 135, the body portion 135 is a wedge pressing portion 132 protruding a portion of the cross section, a portion of the cross section It includes a locking portion 133 protrudes, the pin stopper 131 is projected between the head portion 134 and the body portion 135.

Wedge pressing portion 132 may pass in the longitudinal direction of the hole formed in the separation prevention portion 113a of the body 110, when rotated, in contact with the pin joint portion 122, the engaging portion of the wedge 120 One end 123 is formed to have a size to protrude toward the connecting shaft insertion hole 111.

The locking portion 133 passes in the longitudinal direction of the hole formed in the release preventing portion 113a and, when rotated, is caught by the release preventing portion 113a to prevent the wedge pin from falling upward.

The rotation stopper for positioning the locking portion 133 and the release preventing portion 113a to lock each other includes a pin stopper 131 and a body stopper 113b protruding from the body to engage the pin stopper. Include.

In addition, the present invention further includes a pin rotation preventing device 150 to prevent the wedge pin 130 from rotating in the locked position.

Pin anti-rotation device 150 is installed between the anti-rotation bolt 151 coupled to the body to apply pressure to the side of the wedge pin 130, the anti-rotation bolt and the body, the anti-rotation bolt The pulley includes a contact spring 152 that applies contact pressure in the opposite direction. The anti-rotation bolt 115 is screwed to the support wall 114b, and a protrusion 151b for supporting the contact spring 152 is formed to protrude. Both ends of the contact spring 152 are supported by the protrusion 151b and the support wall.

Hereinafter, the assembly process and dismantling process of the present invention will be described.

6 to 9, the anti-rotation bolt 151 and the contact spring 152 are installed in the bolt hole 114a of the body 110. That is, as shown in Figure 9, by tightening the anti-rotation bolt 151, when the wedge pin 130 is inserted, so that interference does not occur.

Next, as shown in FIG. 10, the wedge 120 is positioned at the wedge mounting part 112 and then fixed to the body 110 using the hinge pin 140. In this state, as illustrated in FIG. 12, two wedges may be in close contact with each other, or as illustrated in FIG. 13, two wedges may be opened to each other.

Then, the connecting shaft 7 is inserted into the connecting shaft insertion hole 111 as shown in FIG. At this time, the chamfered and shaved portion 7a of the connecting shaft 7 is positioned vertically.

Then, as shown in Figure 16, the wedge pin 130 is inserted into the pin insertion hole 113. At this time, the wedge pin 130 is positioned so that the wedge pressing portion 132 does not cause interference with the release preventing portion 113a (that is, the wedge pressing portion 132 is inserted in the longitudinal direction of the release preventing portion 113a). Insert it.

Then, as shown in FIGS. 17 and 18, when the wedge pin is rotated, the wedge pressing part 132 pushes the wedge toward the connecting shaft insertion hole 111, and as a result, the locking part 123 is connected to the connecting shaft ( It is located in the chamfered part of 7) to prevent the connecting shaft (7) from falling out.

In this way, there is no need for a restriction condition that the chamfered portion of the connecting shaft should be inclined because the direction in which the locking portion 123 of the wedge is caught coincides with the moving direction. Therefore, when the chamfered portion of the connecting shaft is maintained vertically, there is an advantage that the adjacent track assembly can be assembled side by side as shown in FIG.

And, the rotation of the wedge pin is limited by the rotation stopper. That is, by the rotation stopper, the rotation of the wedge pin is stopped at the position where the wedge pressing portion 132 pushes the wedge toward the connecting shaft insertion hole 111 (see FIG. 20). Of course, at this time, the locking portion 133 and the separation prevention portion 113a is a position that is locked (see Fig. 21).

Then, as shown in Figure 22 and 23, by releasing the anti-rotation bolt 151, the end of the anti-rotation bolt 151 is in contact with the wedge pin 130, the assembly is completed.

As described above, in the embodiment of the present invention, even if repeated vibration and shock are applied, the anti-rotation bolt 151 continuously prevents the rotation of the wedge pins, and the wedge pins do not rotate unless they are prevented from leaving 113a. ) Can not be separated. Therefore, the wedge is stable to support the connecting shaft, there is an advantage that the assembly between the orbital unit can be stably maintained unless the wedge is completely crushed.

The disengagement of the tip connector can be performed in the reverse order of assembly. However, when the wedge is held in the open state, as shown in FIGS. 24 and 25, when the wedge indentation portion 124 is retracted using a separate tool 200, the wedge is easily retracted.

Although the preferred embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to these specific embodiments, and may be appropriately changed within the scope described in the claims.

1 is a partial perspective view of a conventional caterpillar

2 is a cross-sectional view of the tip connecting device of FIG.

Figure 3 is a side view showing a state connecting the track unit using the tip connecting device of FIG.

Figure 4 is a partial perspective view of the endless track coupled to the tip connecting device of an embodiment of the present invention

Figure 5 is an exploded perspective view of the tip connecting device of FIG.

6 to 23 are perspective views sequentially showing the assembly process of the tip connecting device

24 is a perspective view showing the operation of pinching the wedge of the tip connecting device

DESCRIPTION OF REFERENCE NUMERALS

5: track unit 7: connecting shaft

100: endless track end connecting device 111: connecting shaft insertion hole

110: body 120: wedge

130: fixing means, wedge pin 113: pin insertion hole

132: wedge pressing portion 133: locking portion

113a: release prevention portion 131: pin stopper

113b: body stopper 150: pin rotation preventing device

151: anti-rotation bolt 152: pressure spring

115: groove for recess 200: tool for recess

124: retracted recess

Claims (11)

delete delete In the caterpillar tip connecting device coupled to the connecting shaft protruding on the side of the track unit constituting the endless track, and coupled to the adjacent track unit, A body formed through a connection shaft insertion hole so that the connection shaft of each of the adjacent track units can be inserted therein; Two or more wedges installed between the connection shaft insertion holes of the body, the wedges being opened toward the connection shaft insertion holes; And Fastening means for fixing at least two said wedges in a gaped position; Including, Wherein, A wedge pin formed in the shape of a pin sandwiched between the wedges; Including, The body, the pin insertion hole is formed so that the wedge pin is inserted, The wedge pin is inserted into the pin insertion hole is rotated and locked, The wedge pin, A wedge pressing portion having a portion of the cross section protruding; And A catching part of which a part of the cross section protrudes; Including, And the wedge pin is inserted into the insertion hole in the body, and when the wedge pin is rotated, an endless track connection device formed therein is provided with a release preventing part for locking the locking portion. The method of claim 3, wherein A rotary stopper for positioning the locking portion and the release preventing portion to be locked to each other; A caterpillar tip connection device further comprising a. The method of claim 4, wherein The rotation stopper is, A pin stopper protruding from the wedge pin; And A body stopper protruding from the body to engage the pin stopper; A caterpillar tip connection device comprising a. The method according to any one of claims 3 to 5, Pin anti-rotation device for preventing the wedge pin to rotate in the locked position; Caterpillar front end connection device further comprising a. The method of claim 6, The pin rotation preventing device, An anti-rotation bolt coupled to the body to apply pressure to the side of the wedge pin; Caterpillar end connection device comprising a. The method of claim 7, wherein The pin rotation preventing device, A contact spring installed between the anti-rotation bolt and the body to apply a contact pressure in an opposite direction to release the anti-rotation bolt; Caterpillar front end connection device further comprising a. The method according to any one of claims 3 to 5, And one end adjacent to the track unit of the wedge is hinged to the body. The method of claim 9, In a position adjacent to the track unit of the body, the endless connection device, characterized in that the recessed groove formed by opening a portion of the top surface of the body so that a portion of the end of the wedge is exposed. 11. The method of claim 10, Endless connection point connecting device, characterized in that the contact portion of the wedge is located in the grooved groove is formed with a recessed concave portion that can be fitted with a tool for the retracting.

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