KR102685225B1 - Wheel assembly jig and wheel assembly method using assembly jig - Google Patents

Abstract

The present invention relates to a wheel assembly jig that can improve work efficiency by fixing the tab washer when assembling a wheel, and a wheel assembly method using the assembly jig, which is attached to the wheel to solve the problem of the tab washer rotating when bolting. We propose an assembly jig that secures the tap washer. The assembly jig is disposed inside the central hole of the wheel, and the end of the assembly jig is in contact with the central hole and includes an insertion groove corresponding to the tap washer exposed in the central hole to secure the tap washer. A single worker who fixes the tap washer and tightens the bolt can assemble the phonic wheel, which has the effect of increasing work efficiency by saving maintenance time and human factors.

Description

Wheel assembly jig and wheel assembly method using assembly jig {Wheel assembly jig and wheel assembly method using assembly jig}

The present invention relates to a wheel assembly jig and a wheel assembly method using an assembly jig, and more specifically, to a wheel assembly jig and a wheel assembly method using an assembly jig that can improve work efficiency by fixing the tab washer when assembling the wheel. will be.

The tab washer has a hole in the center where a bolt is inserted, and a plurality of tabs are formed. The tabs are bent inside the central hole of the bolt head and the phonic wheel to prevent the coupled bolts from loosening due to vibration.

A phonic wheel is a component of a railroad vehicle, with teeth formed on the outside to transmit power transmitted through the shaft to a configuration combined with the teeth. Figure 1 is a combined perspective view of a tab washer combined. Referring to FIG. 1, a bolt hole is formed spaced apart from the central hole 50 of the phonic wheel, and a bolt B is fastened to the bolt hole along with a tab washer 60. At this time, one or more tabs of the tab washer must be disposed to be exposed to the central hole, but the tab washer rotates together with the rotation for fastening the bolt, making it difficult to control the position of the tab.

To fix the tab washer, the tab washer was fixed with a flat head screwdriver and then the bolt was joined with a torque wrench. At this time, a worker to fix the tap washer and a worker to tighten the bolt were required, so two workers were essential. In addition, there is an inconvenience in that two or more workers are placed in a narrow area and the workers have to maintain an unstable posture. To solve the above problem, an assembly jig that can be operated by one person is required when assembling the phonic wheel.

Therefore, the present invention was created to solve the problems of the prior art as described above. The purpose of the present invention is to solve the problem of requiring two workers when assembling a wheel, so that one worker can assemble the phonic wheel. We propose a wheel assembly method using a wheel assembly jig and assembly jig to secure the tab washer.

In addition, the present invention proposes a wheel assembly jig and a wheel assembly method using the assembly jig in which the assembly jig that fixes the tap washer is fixed in place when assembling the phonic wheel, so that the worker can transmit sufficient force to the bolt with both hands.

The present invention relates to an assembly jig for determining the position of a tap washer when fastening a bolt and a tap washer to a wheel in which a bolt hole is formed, wherein the wheel has a central hole of a certain shape formed in the center, and the assembly jig has the center hole of the central hole. It is arranged and fixed in contact with the inside, and an end of the assembly jig includes an insertion groove corresponding to the tab washer exposed in the central hole.

In addition, the assembly jig is formed in a plate shape and includes a leg portion protruding toward the bolt hole, and an end of the leg portion is in contact with the central hole and the insertion groove is formed.

In addition, the central hole is formed in a polygonal shape, and the leg portion is in contact with the central hole to limit rotation of the assembly jig.

In addition, the center of the assembly jig is disposed on the same line as the center of the central hole.

Additionally, the assembly jig includes a handle hole in the center.

In addition, a cover corresponding to the central position is disposed on the rear side of the wheel, and the cover includes a protrusion disposed at the center through the central hole, and the handle hole is coupled to the protrusion to determine the position of the assembly jig. It is characterized by being fixed.

In addition, the cross-sectional shape of the handle hole corresponds to the cross-sectional shape of the protrusion, and the protrusion is formed in a polygonal shape to limit rotation of the assembly jig.

In addition, in the wheel assembly method including an assembly jig, the assembly jig arrangement step of arranging the end of the assembly jig to contact the central hole of the wheel; A tab washer fixing step in which the tab washer exposed in the central hole is inserted into the insertion groove formed in the assembly jig; and a wheel fastening step of fastening the wheel by rotating the bolt while the tab washer is fixed.

Additionally, the assembly jig arrangement step is characterized in that the handle hole formed in the center of the assembly jig is inserted into the protrusion of the cover.

In addition, the tab washer fixing step is characterized in that a plurality of tab washers are inserted into each insertion hole and fixed.

The present invention allows one worker to assemble the phonic wheel by fixing the tap washer and tightening the bolt, which has the effect of increasing work efficiency through saving maintenance time and human factors.

Additionally, workers can fasten the phonic wheel with accurate and stable torque.

In addition, one worker can assemble the phonic wheel, allowing the user to change to a comfortable position while working, thereby preventing safety accidents due to worker carelessness.

Figure 1 is a combined perspective view of a tab washer combined.
Figure 2 is an exploded perspective view including a phonic wheel.
Figure 3 is a front view incorporating the present invention.
Figure 4 is a front view of the assembly jig.
Figure 5 is a front view of the phonic wheel.
Figure 6 is a perspective view of the cover.
Figure 7 is an enlarged view of Figure 3.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all changes included in the spirit and technical scope of the present invention.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by a person of ordinary skill in the technical field to which the present invention pertains.

Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless clearly defined in the present application, should not be interpreted in an ideal or excessively formal sense. It shouldn't be.

Hereinafter, a wheel assembly jig and a wheel assembly method using the assembly jig according to an embodiment of the present invention will be described in detail with reference to the attached drawings.

Figure 2 is an exploded perspective view including a phonic wheel. Referring to Figure 2, in a railway vehicle, the cab (10), cover (20), plug ring (30), and locking plate (40) are sequentially coupled, and then the phonic wheel (50) is bolted to the cap (10). do. The phonic wheel 50 has teeth formed on the outside, and the teeth are connected to the external device to transmit power.

The phonic wheel 50 includes a central hole formed in the center and a bolt hole formed spaced apart from the central hole. A bolt is inserted into the bolt hole and coupled to the cap 10, and a tab washer 60 is disposed to prevent the bolt from loosening due to vibration.

The present invention illustrates the assembly of a phonic wheel as an example, does not limit the type of wheel, and can be applied to various types of wheels. In addition, the purpose of the present invention is to fix the tab washer, and the present invention can be applied to fields where the tab washer is applied.

Figure 3 is a front view incorporating the present invention. Referring to FIG. 3, in the assembly jig 100 for determining the position of the tab washer 60 when fastening the bolt B and the tab washer 60 to the wheel 50 in which the bolt hole is formed, the wheel 50 ) is formed at the center with a central hole 51 having a certain shape, the assembly jig 100 is disposed inside the central hole 51, and the end of the assembly jig 100 is formed with the central hole 51. It contacts and includes an insertion groove 121 corresponding to the tab washer 60 exposed to the central hole 51.

The assembly jig 100 is formed in a plate shape and is inserted and placed into the central hole 51 of the phonic wheel 50. The end of the assembly jig 100 inserted into the central hole 51 is in contact with the central hole 51 and the position is fixed. The assembly jig 100 includes a leg portion 120 protruding from the center toward the tab washer 60, and an end of the leg portion 120 is in contact with the central hole 51 and has an insertion groove 121. It is characterized by being formed.

The assembly jig 100 is supported by a plurality of leg portions 120 so as to be stably disposed within the central hole 51. The number of leg portions 120 may be formed to correspond to the number of tab washers, or a plurality of insertion grooves 121 may be formed in one leg portion 120 to simultaneously fix a plurality of tab washers 60.

The phonic wheel 50 has a central hole 51 in the center where the assembly jig 100 is placed, and a bolt hole in which the tap washer 60 is placed is formed spaced apart from the central hole 51.

The cover 20 is disposed on the rear of the phonic wheel 50, and the center of the cover 20 coincides with the center of the phonic wheel 50, and the protrusion 21 formed on the cover 20 is connected to the assembly jig 100. It is combined with the handle hole 110 of.

The assembly jig 100 is characterized in that its position is fixed by the central hole 51 of the phonic wheel 50 and the protrusion 21 of the cover 20.

The tab washer 60 is coupled to the phonic wheel 50 by bolting, and one tab among the one or more tabs is exposed to the central hole 51. The exposed tab is coupled with the insertion groove 121 of the assembly jig 100 and its position is fixed. The tab washer 60 is inserted into the insertion groove 121 of the assembly jig 100, and when the bolt is tightened, the tab washer 60 is fixed without rotating. Since the tab washer 60 is fixed by the assembly jig, one worker can assemble the phonic wheel 50, saving human factors. Additionally, it has the advantage of being able to easily change posture while working and assume a comfortable posture.

Figure 4 is a front view of the assembly jig. Referring to Figure 4, the assembly jig 100 is formed in a plate shape, and a handle hole 110 is formed in the center so that the worker can easily hold the assembly jig 100. The assembly jig 100 has radial leg portions 120 formed from the center outward. The end of the leg portion 120 is formed with an insertion groove 121 into which the tab of the tab washer is inserted.

The rear of the assembly jig 100 is arranged to contact a cover (not shown) or a locking plate (not shown). The assembly jig 100 has a certain thickness so as to protrude from the central hole 51 because it must be combined with the tab washer disposed on the upper surface of the phonic wheel.

In addition, the assembly jig 100 of the present invention is made of a metal material and requires a reduced volume and a handle so that it can be easily carried and manipulated. The assembly jig 100 forms a handle hole 110 by forming a hole in the center. The handle hole 110 is formed in the center of the assembly jig 100, which has the advantage of allowing the worker to easily hold the assembly jig 100 and easily carry and transport it. In addition, the handle hole 100 has a shape corresponding to the protrusion formed in the center of the cover, so that the center of the assembly jig 100 coincides with the center of the cover and the center of the phonic wheel 50 through the combination of the handle hole and the protrusion. It is arranged as much as possible.

The end of the leg portion 120 is arranged to contact the central hole of the phonic wheel, so that the position of the assembly jig 100 is fixed. Briefly referring to Figure 2, since the bolt for coupling the locking plate 40 is placed in the central hole of the phonic wheel 50, the leg portion of the assembly jig is arranged to avoid the bolt for coupling the locking plate 40.

The assembly jig 100 includes insertion grooves 121 corresponding to the number of tab washers formed on the phonic wheel. One or more insertion grooves 121 are formed in one leg portion 120.

The insertion groove 121 is formed at a position corresponding to the tab exposed in the central hole and has a corresponding width so that it can be inserted. The insertion groove 121 simultaneously fixes one or more tabs exposed to the central hole.

Figure 5 is a front view of the phonic wheel. Referring to FIG. 5, a central hole 51 having a certain shape is formed in the center of the phonic wheel 50, and a bolt hole 52 into which a bolt is inserted is formed spaced apart from the central hole 51. The phonic wheel 50 is stably coupled to the cap by a bolt inserted into the bolt hole.

The phonic wheel 50 has a sawtooth shape on the front and transmits the force received from the center to a configuration connected to the teeth.

The central hole 51 formed in the center of the phonic wheel 50 is formed in a circular, oval, or polygonal shape. When the central hole 51 is formed in a circular shape, the assembly jig disposed in the central hole 51 may rotate based on the center of the central hole 51. In a situation where the assembly jig is placed in the central hole 51, the position of the insertion groove can be adjusted by rotating about the center. This has the advantage that the assembly jig can be made small by not having to fix a plurality of tab washers at the same time. In addition, there is an advantage that it can be applied to the central hole 51 of the same diameter.

However, when the central hole 51 is formed in a circular shape, an operation step of adjusting the position of the insertion hole to match the positions of the plurality of tab washers is required, which causes a time-consuming problem. In addition, when combined with one tab washer, the position is not fixed, which has the disadvantage of requiring multiple tab washers.

In the present invention, it is preferable that the central hole 51 is formed in a shape other than a circle in order to fix the position of the assembly jig disposed in the central hole 51. Through this, the assembly jig of the present invention has the feature that the position is fixed by the tab washer and at the same time, the position is fixed by the shape of the central hole 51 of the wheel.

Since the position of the assembly jig is supported by the central hole, the force transmitted to the tap washer can be reduced, thereby reducing damage to the tap washer.

Figure 6 is a perspective view of the cover. Referring to FIG. 6, the cover 20 includes a main body formed in a circular cylindrical shape and a circular protrusion 21 formed at the center of the main body. Briefly referring to Figure 2, the cover 20 is coupled to the cap 10 and is disposed between the cap 10 and the phonic wheel 50.

The protrusion 21 protrudes in the center in a pillar shape and may be formed in a circular or polygonal shape. The cross-sectional shape of the handle hole corresponds to the cross-sectional shape of the protrusion, and when the protrusion is formed in a polygon, the rotation of the assembly jig is restricted.

A different configuration is disposed between the cover and the phonic wheel, and the protrusion 21 has a certain height to be disposed through the central hole of the phonic wheel. The protrusion 21 is coupled to an assembly jig placed in the central hole. Through this, the center of the assembly jig and the center of the cover 20 are aligned, and the assembly jig is arranged to simultaneously contact the protrusion 21 of the cover 20 and the central hole of the phonic wheel, allowing the position to be more firmly fixed.

When fastening the bolts of the phonic wheel, part of the force is transmitted to the assembly jig through the tab washer, and the assembly jig may move forward and backward and be separated. However, the assembly jig of the present invention is designed to be separated from the protrusion 21 of the cover 20 and the center of the phonic wheel. The contact area with the hole is large, so it has a fixing effect.

The purpose of the assembly jig of the present invention is to fix the tab washer so that one person can perform the wheel fastening process, which conventionally requires two people. Since the tap washer is fixed through an assembly jig, one worker can focus on tightening the bolt. To this end, the position of the assembly jig 100 must be fixed without receiving force from the operator, so the position is fixed by combining with a component including a wheel.

Figure 7 is an enlarged view of Figure 6. Referring to Figure 7, a bolt (B) is coupled to the phonic wheel with a tab washer (60). The tab washer 60 is formed with a plurality of tabs, one of which is exposed and disposed toward the central hole 51 of the wheel. The tab exposed in the central hole 51 is inserted into the insertion groove 121 formed at the end of the assembly jig 100 and fixed.

At this time, the width of the insertion groove 121 corresponds to the width of the tab. In addition, the central hole 51 is formed in a polygonal shape, and the end of the assembly jig 100 makes surface contact with the central hole 51 to fix the position. Through this, the tab washer 60 receives rotational force when the bolt is fastened, but the assembly jig fixes the position of the exposed tab, which has the advantage of fixing the position of the tab.

The present invention includes a wheel assembly method using an assembly jig. An assembly jig arrangement step in which the end of the assembly jig is placed in contact with the central hole of the wheel, a tab washer fixing step in which the tab washer exposed to the central hole is inserted into the insertion groove formed in the assembly jig, and, with the tab washer fixed It includes a wheel fastening step of fastening the wheel by rotating the bolt.

The assembly jig placement step is characterized in that the handle hole formed in the center of the assembly jig is inserted into the protrusion of the cover. The assembly jig is arranged to contact the central hole and the protrusion at the same time, so the assembly jig supports its own position. This eliminates the need for workers to continuously apply force to secure the assembly jig, allowing one worker to focus on inserting tap washers and tightening bolts.

The tab washer fixing step is a wheel coupling method characterized in that a plurality of tab washers are inserted into each insertion hole and fixed. Fix multiple tab washers to one assembly jig.

When the central hole and the protrusion are formed in a circular shape, the assembly jig can be rotated, but the rotation is limited by being combined with a plurality of tab washers.

In the wheel fastening step, the bolt is fastened using a tool, the jig is removed, and the tab of the tab washer is bent to prevent the bolt from easily loosening due to vibration.

The present invention is not limited to the above-described embodiments, and the scope of application is diverse. Of course, various modifications and implementations are possible without departing from the gist of the present invention as claimed in the claims.

10: cap
20: cover 21: protrusion
30: Plug ring 40: Locking plate
50: wheel
51: central hole 52: bolt hole
60: tab washer 61: tab
61: tab
100: Jig body
110: handle hole
120: Leg 121 insertion groove
B: bolt

Claims (10)

In the assembly jig for determining the position of the tap washer when fastening the bolt and the tap washer to the wheel in which the bolt hole is formed,
The wheel has a polygonal central hole in the center,
The assembly jig is formed in a plate shape and includes a leg portion protruding toward the bolt hole,
The leg portion includes an insertion groove corresponding to the tab washer exposed in the central hole,
An assembly jig, characterized in that the rotation of the assembly jig is restricted by contacting the inside of the central hole.
delete delete According to paragraph 1,
The center of the assembly jig is
An assembly jig, characterized in that it is arranged on the same line as the center of the central hole.
According to paragraph 4,
The assembly jig is an assembly jig including a handle hole in the center.
According to clause 5,
A cover corresponding to the central position is disposed on the rear of the wheel,
The cover includes a protrusion disposed through the central hole in the center,
An assembly jig, wherein the handle hole is coupled to the protrusion to fix the position of the assembly jig.
According to clause 6,
The cross-sectional shape of the handle hole corresponds to the cross-sectional shape of the protrusion,
An assembly jig, wherein the protrusion is formed in a polygonal shape to limit rotation of the assembly jig.
In the wheel coupling method including the assembly jig of claim 1,
An assembly jig arrangement step in which the end of the assembly jig is placed in contact with the central hole of the wheel;
A tab washer fixing step in which the tab washer exposed in the central hole is inserted into the insertion groove formed in the assembly jig; and
A wheel fastening step of fastening the wheel by rotating the bolt while the tab washer is fixed;
A wheel coupling method including.
According to clause 8,
The assembly jig arrangement step is a wheel coupling method characterized in that the handle hole formed in the center of the assembly jig is inserted into the protrusion of the cover.
According to clause 8,
The tab washer fixing step is a wheel coupling method characterized in that a plurality of tab washers are inserted into each insertion groove and fixed.