JPH0858643A - Traveling motor cover device for construction - Google Patents

Abstract

PURPOSE: To facilitate the maintenance work for a part of a hydraulic piping by dividing a cover plate to cover a hydraulic piping part connected to a traveling motor into a front cover plate and a rear cover plate, and connecting the front edge of the rear cover plate to the rear edge of the front cover plate through a hinge. CONSTITUTION: A housing 18 for mounting a traveling motor is arranged at the rear of a truck frame 16 of a crawler type carrier, and a cover plate 20 to cover a part of a hydraulic piping 28 connected to a traveling motor 27 is provided inside a protective plate 19 installed from the upper side to the lower side of the traveling motor 27 which forms a part of the housing 18. In this case, the cover plate 20 is formed dividingly with a front cover plate 21 and a rear cover plate 22, and the front edge of the rear cover plate 22 is connected to the rear end of the front cover plate 21 through a hinge member 23. Thus the rear cover plate 22 can be opened easily, and the maintenance work near the traveling motor 27 in also facilitated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crawler type construction machine such as a hydraulic excavator and a cover device for a traveling motor mounted on a traveling body of a work vehicle.

[0002]

2. Description of the Related Art FIG. 5 is a perspective view showing a main part assembly structure of a crawler frame 1 of a traveling body for a hydraulic excavator (not shown). In the figure, 2L and 2R are left and right track frames of the crawler frame 1, and 3 is a housing mounting plate welded to the rear portions of the track frames 2L and 2R, respectively. The track frames 2L, 2R
Since the respective structures of the rear portions are configured to be symmetrical to each other, the side of the track frame 2R will be described as a representative example. Reference numeral 4 is a notched hole formed in the housing mounting plate 3, 5 is a housing for mounting the traveling motor 6, 7 is a motor mounting flange of the housing 5, 8 is a protective plate, and 9 is a screw hole fixed to the protective plate 8. Attached block, 10 is a plurality of hydraulic pipes, 11 is a clamp fitting for fixing the hydraulic pipe 10, 12 is a cover plate, 13 is a mounting hole for the cover plate 12,
14 is a bolt and 15 is a washer.

Next, a conventional cover device will be described with reference to FIG. Crawler frame 1 for traveling body for hydraulic excavator
Then, the housing mounting plate 3 is welded to the rear portion of the track frame 2R (the left and right track frames 2L and 2R are provided symmetrically with respect to each other, so the right track frame 2R will be described as a representative). 3, a motor mounting flange 7 and a protection plate 8 extending from the upper surface side to the lower surface side of the traveling motor 6 along the outer peripheral edge portion of the motor mounting flange 7 are welded, and the inner surface side of the motor mounting plate 7 travels. A cover plate 12 for covering the protruding portion of the motor 6 and the portions of the plurality of hydraulic pipes 10 connected to the traveling motor 6 is detachably attached to the protection plate 8.
A housing 5 for mounting the traveling motor is configured.

[0004]

In the crawler type traveling body of the hydraulic excavator, when carrying out maintenance work on the traveling motor or in the vicinity of the traveling motor, or when removing dirt accumulated in the housing for mounting the traveling motor. When performing, the cover plate of the housing is removed and the work is performed. However, in the conventional traveling motor cover device, as shown in FIG. 5, the traveling motor and the portion of the hydraulic pipe in the vicinity of the traveling motor are covered with a single cover plate. For this reason, when the hydraulic excavator is large or medium-sized, the cover plate has a large weight, so that the work of attaching and detaching the cover plate was performed by two people. Therefore, not only the labor of the worker is wasted, but also the fatigue of the worker is great.
It is an object of the present invention to provide a traveling motor cover device that can solve the above problems.

[0005]

According to the present invention, a housing mounting plate is welded to a rear portion of a track frame of a traveling body, and a motor mounting flange and an outer peripheral edge portion of the motor mounting flange are attached to the housing mounting plate. The protective plate is welded from the upper surface side to the lower surface side of the traveling motor, and the cover plate that covers the traveling motor protruding portion on the inner side surface of the motor mounting plate and the portion of the hydraulic pipe connected to the traveling motor is provided as the protective plate. In the travel motor mounting housing that is detachably attached to the front cover plate, the cover plate is divided into a front cover plate and a rear cover plate, and the front end edge of the rear cover plate is the rear end of the front cover plate. The edge portion is connected by a hinge member. Alternatively, the cover plate is divided into a front cover plate and a rear cover plate, and the front cover plate and the rear cover plate are detachably attached to the protective plate. Alternatively, a window hole is formed in a portion of the cover plate corresponding to the traveling motor mounting position, and a lid plate for covering the window hole is hinged to the cover plate.

[0006]

The cover plate of the housing for mounting the traveling motor is divided into a front cover plate and a rear cover plate, and the front end edge of the rear cover plate is a hinge member to the rear end edge of the front cover plate. With the connected cover device, the bolts that fasten and fix the rear cover plate are loosened and removed when performing maintenance work near the travel motor. By this operation, the rear cover plate is opened and closed about the hinge axis of the hinge member. Therefore, the rear cover plate can be easily opened to perform maintenance work near the travel motor. Conversely, when the rear cover plate is attached and the bolts that fasten and fix the front cover plate are loosened and removed, the front cover plate opens and closes around the hinge axis of the hinge member. Therefore, it is possible to easily open the front cover plate and perform maintenance work on the hydraulic piping connected to the traveling motor.

Further, the cover plate of the traveling motor mounting housing is divided into a front cover plate and a rear cover plate,
In the cover device in which the front cover plate and the rear cover plate are detachably attached to the protective plate, the rear cover is used when maintenance work is performed near the traveling motor or the portion of the hydraulic pipe connected to the traveling motor. Plate and front cover plate at least one of the required cover plates is tightened and loosened and removed. By this operation, the rear cover plate or the front cover plate, or the rear cover plate and the front cover plate can be easily removed individually. Therefore, at least one required cover plate can be removed and opened to perform maintenance work in the vicinity of the traveling motor and the portion of the hydraulic pipe connected to the traveling motor.

Further, in a cover device in which a window hole is formed in a portion of the cover plate of the traveling motor mounting housing corresponding to the traveling motor mounting position, and a cover plate for covering the window hole is hinged to the cover plate, When performing maintenance work in the vicinity, loosen the bolts that secure the lid plate and remove it. By this operation, the lid plate is opened and closed about the hinge axis of the hinge member. Therefore, the lid plate can be easily opened to perform maintenance work in the vicinity of the traveling motor.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view of a main portion of a rear portion of a truck frame 16 equipped with a cover device according to a first embodiment of the present invention, as viewed from the inside. In the drawing, 17 is a housing mounting plate, 18 is a housing for mounting a traveling motor, 19 is a protective plate which is one component of the housing 18, 20 is a cover plate, 21 is a front cover plate of the cover plate 20, and 22 is a cover plate. A rear cover plate, 23 is a hinge member, and 24 is a front cover plate 21.
Is a bolt for fastening the inner side surface of the rear portion of the track frame 16, and 25 is a bolt for fastening the rear cover plate 22 to the protective plate 19. FIG. 2 is a diagram showing a state in which the rear cover plate 22 in FIG. 1 is opened.
In the figure, 26 is a motor mounting flange of the housing 18, 27 is a traveling motor, 28 is a plurality of hydraulic pipes connected to the traveling motor 27, 29 is a block with screw holes welded inside the protective plate 19, Reference numeral 30 is a screw hole formed in the block with screw holes 29, and 31 is a bolt hole opened in the rear cover plate 22.

Next, the structure and operation of the cover device according to the first embodiment of the present invention will be described with reference to FIGS. In the present invention, the cover plate 20 is replaced by the front cover plate 21 and the rear cover plate 2.
The front cover plate 22 is divided into two parts, and the front end edge part of the rear cover plate 22 is hinged to the rear end edge part of the front cover plate 21.
Configured by connecting with. Therefore, when performing maintenance work near the traveling motor 27, the bolts 25 (shown in FIG. 1) that fasten and fix the rear cover plate 22 are loosened and removed. By this operation, the rear cover plate 22 is opened and closed about the hinge axis of the hinge member 23. Therefore, the rear cover plate 22 can be easily opened as shown in FIG. 2 to perform maintenance work near the traveling motor 27. On the contrary, when the rear cover plate 22 is attached and the bolts 24 fastening the front cover plate 21 are loosened and removed, the front cover plate 21 is centered on the hinge axis of the hinge member 23. Since it can be opened and closed freely, the front cover plate 21 can be easily opened, and the traveling motor 2
It is possible to perform maintenance work on the hydraulic pipes 28 connected to 7.

Next, FIG. 3 is a perspective view of an essential part of the crawler frame 32 showing the assembled construction of the cover apparatus according to the second embodiment of the present invention. In the figure, 33 is a track frame provided on the left and right of the crawler frame 32, 34 is a housing mounting plate, 35 is a housing for mounting a traveling motor, and 36 is a housing.
Is a protective plate of the housing 35, 37 is a cover plate, 38 is a front cover plate of the cover plate 37, 39 is a rear cover plate, 4
0 and 41 are bolts, respectively. Next, the second aspect of the present invention
The structure and operation of the embodiment cover device will be described with reference to FIG. In the present invention, the cover plate 37 is divided into the front cover plate 38 and the rear cover plate 39, and the front cover plate 3 is formed.
8 and the rear cover plate 39 are detachably attached to the protective plate 36. Therefore, when performing maintenance work near a traveling motor (not shown) or a portion of hydraulic piping (not shown) connected to the traveling motor, at least one of the rear cover plate 39 and the front cover plate 38 is used. Bolt 4 that fastens and fixes one required cover plate
Loosen 1,40 and remove. By this operation, the rear cover plate 39 or the front cover plate 38, or the rear cover plate 39 and the front cover plate 38 can be easily removed individually. Therefore, at least one required cover plate can be removed and opened to perform maintenance work in the vicinity of the traveling motor and the portion of the hydraulic pipe connected to the traveling motor.

Next, FIG. 4 is a side view of the main part of the rear portion of the track frame 16 'equipped with the cover device of the third embodiment of the present invention, as viewed from the inside. In the drawing, 17 'is a housing mounting plate, 18' is a housing for mounting a traveling motor, 19 'is a protective plate which is one component of the housing 18', 42 is a cover plate, 43 is a rear side of the cover plate 42. The formed window hole, 44 is a bolt for fastening the cover plate 42 to the inner surface of the protective plate 19 'and the track frame 16', 45 is a cover plate, and 46 is a cover plate 45.
Reference numeral 47 is a hinge member that is hinged to 2, and 47 is a bolt that fastens the cover plate 45 to the cover plate 42. Next, the configuration and operation of the third embodiment cover device of the present invention will be described with reference to FIG. In the present invention, a window hole 43 is formed in a portion of the cover plate 42 corresponding to a traveling motor (not shown) mounting position, and a lid plate 45 for covering the window hole 43 is mounted via a hinge member 46. . Therefore, when performing maintenance work near the traveling motor, the bolts 47 fastening and fixing the cover plate 45 are loosened and removed. By this operation, the lid plate 45
Is openable and closable around the hinge axis of the hinge member 46. Therefore, it is possible to easily open the cover plate 45 and perform maintenance work near the traveling motor.

[0013]

In the cover device of the first embodiment of the present invention, the cover plate is divided into the front cover plate and the rear cover plate, and the front edge of the rear cover plate is formed at the rear end of the front cover plate. A hinge member was connected to the edge portion. Therefore, when the front cover plate is attached and the bolt fixing the rear cover plate is loosened and removed, the rear cover plate becomes openable and closable around the hinge axis of the hinge member. Therefore, the rear cover plate can be easily opened to perform maintenance work near the travel motor. Conversely, when the rear cover plate is attached and the bolts that fasten and fix the front cover plate are loosened and removed, the front cover plate opens and closes around the hinge axis of the hinge member. Therefore, it is possible to easily open the front cover plate and perform maintenance work on the hydraulic piping connected to the traveling motor. In the cover device according to the second embodiment of the present invention, the cover plate is divided into a front cover plate and a rear cover plate, and the front cover plate and the rear cover plate are detachably attached to the protective plate. It was Thereby, at least one of the rear cover plate and the front cover plate is tightened and fixed by loosening and removing the bolts that secure the rear cover plate or the front cover plate, or the rear cover plate and the front cover plate. The part cover plates can be individually removed. Since the weight of each of the rear cover plate and the front cover plate is a relatively light weight that can be held by one operator, the operator can easily remove and open the required cover plate, It is possible to perform maintenance work near the traveling motor and the portion of the hydraulic pipe connected to the traveling motor. Further, in the cover device of the third embodiment of the present invention, the window hole is formed in the portion of the cover plate corresponding to the position where the traveling motor is attached, and the cover plate covering the window hole is hinged to the cover plate. Therefore, when performing a maintenance work in the vicinity of the traveling motor, if the bolt fixing the lid plate is loosened and removed, the lid plate becomes openable and closable around the hinge axis of the hinge member. Therefore, the lid plate can be easily opened to perform maintenance work in the vicinity of the traveling motor. That is, in the construction machine and the working vehicle equipped with the traveling motor cover device of the present invention, labor can be saved during maintenance work in the traveling motor mounting housing, and work efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a side view of a main part of a rear part of a truck frame equipped with a cover device according to a first embodiment of the present invention as viewed from the inside.

FIG. 2 is a diagram showing a state in which a rear cover plate in FIG. 1 is opened.

FIG. 3 is a perspective view of a main part of a crawler frame showing an assembled configuration of a cover device according to a second exemplary embodiment of the present invention.

FIG. 4 is a side view of a main part of a rear part of a truck frame equipped with a cover device according to a third embodiment of the present invention, as viewed from the inside.

FIG. 5 is a perspective view showing a main part assembly configuration of a conventional crawler frame.

[Explanation of symbols]

 1,32 Crawler frame 2L, 2R, 16, 16 ', 33 Track frame 3, 17, 17', 34 Housing mounting plate 5, 18, 18 ', 35 Housing 6,27 Traveling motor 8, 19, 19', 36 Protective plate 10,28 Hydraulic piping 12,20,37,42 Cover plate 21,38 Front cover plate 22,39 Rear cover plate 23,46 Hinge member 43 Window hole 45 Lid plate

Claims (3)

[Claims] 1. A housing mounting plate is welded to a rear portion of a track frame of a traveling body, and a motor mounting flange is attached to the housing mounting plate and a lower side of the traveling motor along an outer peripheral edge of the motor mounting flange. Weld a protective plate over and attach a cover plate that covers the protruding part of the traveling motor on the inner side of the motor mounting plate and the part of the hydraulic pipe connected to the traveling motor to the protective plate in a removable manner. In the housing for mounting the traveling motor, the cover plate is divided into a front cover plate and a rear cover plate, and the front edge of the rear cover plate is a hinge member with respect to the rear edge of the front cover plate. A cover device for a traveling motor of a construction machine, which is characterized by being connected with each other. 2. A housing mounting plate is welded to the rear portion of the track frame of the traveling body, and the motor mounting flange is attached to the housing mounting plate and the lower side of the traveling motor along the outer peripheral edge of the motor mounting flange. Weld a protective plate over and attach a cover plate that covers the protruding part of the traveling motor on the inner side of the motor mounting plate and the part of the hydraulic pipe connected to the traveling motor to the protective plate in a removable manner. In the housing for mounting the traveling motor, the cover plate is divided into a front cover plate and a rear cover plate, and the front cover plate and the rear cover plate are detachably attached to the protective plate. The cover device for the traveling motor of the characteristic construction machine. 3. A housing mounting plate is welded to the rear portion of the track frame of the traveling body, and the motor mounting flange is attached to the housing mounting plate and the lower side of the traveling motor along the outer peripheral edge of the motor mounting flange. Weld a protective plate over and attach a cover plate that covers the protruding part of the traveling motor on the inner side of the motor mounting plate and the part of the hydraulic pipe connected to the traveling motor to the protective plate in a removable manner. In the housing for mounting the traveling motor, a window hole is formed in a portion of the cover plate corresponding to the mounting position of the traveling motor, and a lid plate that covers the window hole is hinged to the cover plate. Motor cover device.