CN1071737A

CN1071737A - Crank pulley oil sucker

Info

Publication number: CN1071737A
Application number: CN 92103513
Authority: CN
Inventors: 杨鹤年
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-05-16
Filing date: 1992-05-16
Publication date: 1993-05-05

Abstract

A kind of pumping unit.It is characterized in that an end hitches the rope chain 5 of suspension point 7, behind deflecting roller 6, walk around crank pulley 4, tie up to the other end near the deflecting roller or tie up on the pulley.When crank 3 rotations, the rope chain affects the suspension point working in reciprocating mode.Characteristics, simple in structure, stroke is long, and is energy-conservation, can transform beam-pumping unit easily, makes it to increase stroke, from heavy and light, reduces energy consumption.

Description

Crank pulley oil sucker

The invention belongs to oil pumping machinery.

The extensive beam pumping unit that adopts, though reliable operation simple in structure, the big body weight of shape, stroke is short, huge walking beam and horse head reciprocally swinging, consumes energy.Some all do not break away from walking beam to its improved design, and other long stroke pumping unit schemes, most complex structure, the life-span is not long.

The object of the present invention is to provide the simpler non-beam beam-pumping unit of a kind of structure, it has kept beam-pumping unit reliable operation, advantage that amount of maintenance is few, and stroke is long, efficient is high.

Crank pulley oil sucker of the present invention (seeing accompanying drawing), by prime mover 1, speed changer 2, crank 3 and on pulley 4, rope chain 5, deflecting roller 6, suspension point 7 and frame 8 constitute.After one end hitches the rope chain warp deflecting roller of suspension point, walk around crank pulley and tie up to the other end near the deflecting roller or tie up on the pulley.Crank pulley can normally be arranged synchronous working in bilateral symmetry in a side of speed changer.

The crank that the present invention addresses comprises bent axle, and its radius can be fixed, and also can be adjustable, but can be rotated in the forward also counterrotating.The rope chain can be any flexible things that can bear pulling force such as steel cable, chain, adhesive tape, and its quantity can be one, normally 2,4,6,8,10 and more even number root symmetric arrangement, and the race that is in contact with it has respective shapes and groove number.Many rope interchain speed differences that cause in order to remedy manufacturing, installation, wearing and tearing and unbalance stress, every the rope chain preferably has own pulley and the deflecting roller that freely rotates, promptly restrict chain radical and single sheave of equating of wheel number, and to tie up on the even year device also can be multiple-grooved pulley at the two ends of symmetry rope chain.

When prime mover power is passed to speed changer, make crank and together with the pulley on it by selected speed rotation, pulley away from or during near deflecting roller, rope chain haulage suspension point working in reciprocating mode.The suspension point reciprocal distance promptly is a working stroke.When the rope chain the other end tied up near the deflecting roller, working stroke S was about 4 times of crank radius R, i.e. S ≈ 4R, and when the rope chain the other end tied up on the pulley, working stroke was 2 times of crank radius, i.e. S=2R.If wanting has bigger stroke, suspension point is changed into movable pulley, then S ≈ 8R.

Advantage of the present invention is to utilize the flexible strand chain that rotatablely moving of crank is converted to to-and-fro motion, according to this and the pumping unit of design, stroke is long, power consumption less, cost is low, from heavy and light, install easily, convenient transportation.Especially can reequip existing beam-pumping unit easily, reach increase stroke, reduce weight, energy-conservation effect.

By adjust crank rotating center and deflecting roller center in the horizontal direction apart from B, the proportionate relationship of the distance H of in the vertical direction and crank throw R, make suspension point work done and prime mover power output better fit, adjust crank and lay particular stress on and make rotating inertia force corresponding, can make that work is more steady, power consumption is littler with the suspension point work done.

Rope chain cross section hour, radical is many, and indefatigability is wear-resistant poor, and corresponding train complexity is then opposite when rope chain cross section is big.

Use is two stretches crank, 2-4 root rope chain, and single groove pulley, S ≈ 4R, crank is laid particular stress on the pumping unit that is slightly larger than suspending weight and is had good using effect, and is beneficial to the repacking beam pumping unit.

Claims

1, a kind of pumping unit, by crank and on pulley, rope chain, deflecting roller, suspension point constitute, feature of the present invention is, after one end hitches the rope chain warp deflecting roller of suspension point, walking around crank pulley ties up to the other end near the deflecting roller or ties up on the pulley, when crank rotates together with the pulley on it, affect suspension point to-and-fro motion work by the rope chain.

2, can be any flexible things that can bear pulling force such as steel cable, chain, adhesive tape as right 1 described rope chain.

3, be one at least as right 1 described rope chain, 2-10 even number root symmetric arrangement normally.

4, pulley, the deflecting roller as rope chain contact as described in the right 1 should have and the corresponding shape of rope chain.

5, can be the single-wheel that equates and freely rotate with rope chain radical root as right 1 described pulley, deflecting roller, also can be multiple-grooved pulley.