Hinges for HEAVY floor hatch!

[Busster]

OK. Thanks! I'll make the hatch myself. I don't know where to get bushings, but bearings are easy and cheap to find.

 

[Bjober]

Hinges for a car door? They are sturdy but probably really expensive as new spare parts.
Used?
Otherwise, make your own.
Iron against iron with a drop of oil once in a while shouldn't be a problem. That lid isn't likely to flutter like a lark's wing exactly?

 

[raveper]

There are welding hinges. Should work excellently and cheaply.

 

[Violina]

There are welding hinges. Should work excellently and cheaply.

No, they are not made for this type of load (the pin risks bending/weld may crack) and you also have to get them completely straight for them to work if you use them like this.. (in normal application they slide on the contact surface between the male and female where there is a brass washer)

 

[Andreas_kalmar]

Axle straight through and bearings in the frame? Shouldn't cost a fortune

 

[Violina]

Axle straight through and bearings in the frame? Shouldn't cost a fortune

It will be difficult with a through axle in "a hole in the floor," how do you get it there?

I know how I would have done it, a bit tempted to start up the computer and fire up Inventor

 

[Busster]

It will be difficult with a continuous shaft in "a hole in the floor", how to get it there?

I know how I would have done it, a bit tempted to start up the computer and fire up Inventor

“If there is a will, there is a way!”

 

[Andreas_kalmar]

You build the frame and the door together and attach it in the hole; if it is steel, you weld, if it is concrete, it becomes a chemical anchor or am I missing something?

 

[Busster]

You build the frame and door together and attach it to the hole; if it's steel, you weld it, if it's concrete, you'll use chemical anchors, or am I missing something?

Not many misses here!

 

[Andreas_kalmar]

Just see lots of solutions, how much should it be opened? If I compare with my cart on the machine, it lifts about 10 tons and leads on greased 60 axles at 2 points, then a small hatch at 200 kg should manage on 30mm axles without even thinking about wear if you open <1000 times a year.

 

[Busster]

I see a lot of solutions, how much should it open? Compared to my cart on the machine, it lifts about 10 tons and glides on greased 60 axles at 2 points, so a small hatch of 200 kg should manage on 30mm axles without even considering wear if you're going to open it <1000 times a year

Some pictures would be great

 

[Andreas_kalmar]

I'll do it tomorrow as soon as it gets light

 

[Andreas_kalmar]

 

[Busster]

What do you think of this opening?

 

[Andreas_kalmar]

Maybe a little overworked...