JPS6123963Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a chain tension structure for a traveling drive chain in a multi-wheel power transport vehicle.

Multi-wheel power transport vehicles are generally driven by a traveling chain device installed in a chain case, and in this case, traveling drive chains are arranged in a staggered manner between each axle. It will be suspended. The drive chain is provided with a chain tension plate to prevent the drive chain from sagging. However, in the past, this chain tension plate was provided for each drive chain.
For this reason, it is necessary to prepare as many chain cladding plates as there are drive chains, and when installing them, not only does it take time and effort to mount each plate independently, but they must also be discarded when they wear out due to contact with the chains. It was a waste of money to replace the chain with a new one.

Therefore, in this proposal, this chain cladding plate is formed into a single-plate chain cladding plate that can accommodate all of the drive chains, thereby reducing the effort required to install the chain cladding plates, and also allowing each drive chain to be arranged in a staggered manner. The purpose of this project is to make it possible to use this chain cladding board again.

The present invention will be explained below based on embodiments shown in the drawings.

A is an 8-wheel power transport vehicle as a multi-wheel power transport vehicle, with four running wheels 1, 1, and 4 on each side of the vehicle body.
1, 1 and an engine 2 installed at the front of the vehicle body.
The power is transmitted via the propeller shaft 3 to a traveling drive section 4 provided at the rear of the vehicle body, and the power is transmitted from the traveling drive section 4 to traveling chain devices 6, 6 configured in left and right chain cases 5, 5. While transmitting the power, each of the running wheels 1 is driven to cause the vehicle body to travel.

Reference numerals 7, 7, and 7 designate traveling drive chains in the traveling chain device 6, which are suspended in a staggered manner between the respective axles 1', 1', 1', and 1' that are pivotally supported on the chain case 5. . The drive chains 7, 7, 7 are arranged symmetrically between the left and right travel chain devices 6, 6. Further, 8 is a sprocket provided on each axle 1'.

In the figure, 9 indicates a pair of drive bevel gears provided in the travel drive section 4, 10 and 10 indicate the same steering clutch, and 11 and 11 indicate a pair of drive bevel gears provided between the travel drive section 4 and the travel chain devices 6 and 6. This is a group of reduction gears interposed between.

Reference numerals 12 and 12 designate chain tension plates provided at the bottoms of the left and right chain cases 5, 5, using a single plate having a width wider than the horizontal width t of the parallel drive chains.
This is formed into a wave-like shape so that the number of wave parts 12a, 12a, 12a is the same as the number of drive chains 7. In addition, 12b and 12b are this chain clad plate 12
This chain tension plate is arranged so that the troughs 12b, 12b are located directly below the sprockets 8, 8, and the wavy parts 12a, 12a, 12a support the lower side of each drive chain 7, respectively. 12 will be installed. The chain cladding plate 12 is made of spring steel or nylon-based synthetic resin, and can be inserted into and removed from the chain case 5 from the rear end surface 5' of the chain case 5.

Therefore, when the chain lining plate 12 of the present invention is attached to the bottom of the chain case 5, each drive chain 7, 7,
7 is suspended under tension while its lower side is supported by the corrugated portions 12a, thereby preventing it from sagging. And this chain cladding board 1
2, as the drive chain 7 rotates, wear will occur on each wave part 12a, but in this case, since the drive chains 7 are arranged in a staggered manner, the Wear parts m, m, due to contact
m will also occur in staggered positions. After a certain period of use, the abrasion of the worn part m becomes severe and it becomes necessary to replace the chain lining plate 12. However, in this proposal, the chain lining plates 12, 12 may be replaced with the left and right chain cases 5, 5, or Alternatively, if the front and back directions are reversed and the chain is inserted into the same chain case 5, the worn parts n, n, n of the chain tension plate 12 will be formed at positions symmetrical to the original staggered position. This makes it possible to reuse the chain panel 12, thereby doubling its service life.

As mentioned above, according to the present invention, since the chain cladding plate is formed from a single plate, there is no need to prepare many chain cladding plates unlike the conventional method, and there is an effect that the labor required for installing the chain cladding plates can be reduced. .
Furthermore, since the chain cladding can be reused, its useful life can be doubled.

[Brief explanation of the drawing]

Figure 1 is an overall side view showing an eight-wheel power carrier as a multi-wheel power carrier, Figure 2 is an explanatory plan view showing the same power transmission structure, and Figure 3 is a perspective view showing a chain panel according to an embodiment of the present invention. It is a diagram. A: 8-wheel power transport vehicle, 1: Running wheels, 1': Axle, 5: Chain case, 6: Running chain device,
7: Travel drive chain, 12: Chain cladding plate, 12
a: wave top, 12b: trough, m: worn part, n: worn part.

Claims (1)

[Scope of utility model registration request] The axles 1', 1', 1', 1' are supported by a chain case 5, and traveling drive chains 7, 7, 7 are arranged in a staggered manner between the axles 1', 1', 1', 1'. In a multi-wheeled power transport vehicle that is suspended in the suspended state, a chain cladding plate 12, which is a single plate formed into a wavy shape, is provided at the bottom of the chain case 5, and the wavy portions 12a, A chain tension structure of a travel drive chain in which the lower parts of the drive chains 7, 7, 7 are respectively supported by 12a, 12a.