CN86207643U

CN86207643U - Hugging puller

Info

Publication number: CN86207643U
Application number: CN 86207643
Authority: CN
Inventors: 隋铁永
Original assignee: No6 Oil Production Field Daqing Petroleum Administration
Current assignee: No6 Oil Production Field Daqing Petroleum Administration
Priority date: 1986-10-04
Filing date: 1986-10-04
Publication date: 1988-08-24

Abstract

The utility model relates to a hugging puller, mainly comprising a hugging device, a tray, a jack and a load screw rod. The utility model is convenient to install and can be assembled by one person's operation, so the dismounting waiting pulley can be dismounted within 20 minutes. The utility model can increase the efficiency of the existing triangle puller by 30-50 times, and the hugging puller is safe. The utility model is suitable for large and medium sized enterprises in particular to oilfields, which is suitable for the motor pulley which needs frequently change an oil pumping unit in order to increase the oil production, so the stroke frequency can be adjusted in order to accomplish the purpose of more oil production.

Description

Hugging puller

The cohesion style chest expander is a kind of extracting tool of vee-pulley.

In the many large, medium-sized enterprises of application of motor, usually change belt wheel at present,, often need the replacing electrical machine belt pulley as being to regulate the oil pumper jig frequency on the oil field to improve oil production according to certain purpose needs.Do not using belt wheel for long-term leaving unused with dismantling for many years, and often making the belt wheel rust dead, wanting belt wheel is pulled down is the very difficult thing of part.The extracting tool that adopts has the triangle chest expander at present, it is three hook local pressures, because belt wheel and motor tip-clearance are little, hook is partly thinner, influence intensity, and contact area being little, is helpless to the belt wheel that is difficult to dismantle, one comes belt wheel not tear open not get off, and two have damaged belt wheel and hook; The triangle chest expander is manually to rotate transferring power by screw rod simultaneously, not only requires great effort but also take a lot of work.

The objective of the invention is in order to overcome above-mentioned shortcoming, design a kind of laborsaving again, timesaving cohesion style chest expander simple in structure, easy to operate.

The cohesion style chest expander, it is and is replaced belt wheel and has a groove or a plurality of sheave to be meshed, and lifting surface area is increased, and replaces spiral to transmit bar with jack in addition, by people's assembly operation, can pull down any belt wheel that is difficult to dismantle in tens minutes.

Structure of the present invention: have obvolvent device (1), pallet (2), jack (3), load screw rod (4) and nut (11) to form.Fig. 1 is cohesion style chest expander assembling section (being the F-F rotation section of Fig. 2), and Fig. 2 is obvolvent device (a 1) structure chart, and Fig. 3 is pallet (a 2) structure chart, uses alignment pin (6) and fastening bolt (5) when Fig. 4 is obvolvent device (1) obvolvent.

Obvolvent device (1) is for cast steel or cast iron circularize pseudoconjugant, and its structure is by split belt wheel (8) structures shape.Annular pseudoconjugant outer rim has bead (12), the union end (14) of uniform symmetry, and the sheave that is meshed with split belt wheel (8) is arranged in annular pseudoconjugant, and its groove number is a plurality of, and 2 grooves can meet the demands.General 4 of bead (12) is advisable on the annular pseudoconjugant, and the through hole (15) with its axially parallel is arranged on its bead (12).For making pseudoconjugant easily hold belt wheel (8) tightly, pseudoconjugant is divided into more than 2 parts of symmetry, partly be advisable with 2, and leave gap (19) at its union end.Parallel its axial through hole (13) of matching with alignment pin (6) is arranged on its union end (14), have vertical its axial slotted eye (7) that the fastening bolt (5) of pin-and-hole matches with the end.The above-mentioned obvolvent device (1) that promptly is divided into 2 parts.According to the belt wheel (8) of different size, model, make serial obvolvent device (1).

The selection of jack (3) estimates that with the rust dismounting belt wheel (8) of dying in an accident or political incident selects 32 tons of jack can be general, this jack can be in vertical, horizontal direction application.The apical axis holder (9) that diameter is slightly less than motor shaft (10) cooperates with the jack top.

Pallet (2) is made by cast steel or cast iron, and its maximum outside diameter matches with obvolvent device (1) maximum outside diameter that it adopts.Hollow disk (17) is arranged on the pallet, and its external diameter matches with the jack bottom.The disc (16) that equates with last bead (12) number of obvolvent device (1) is arranged in its disk outer rim.The disc outer rim has reinforcement (20), and slotted eye (18) is at interval arranged on disc, and its slotted eye is gone up through hole (15) centre-to-centre spacing apart from the center maximum with least radius and serial obvolvent device (1) and matched, and slotted eye is wide to match with load screw rod (4).Pallet (2) has versatility.

There is the load screw rod (4) of reducing at two ends, and its major diameter of thread is gone up slotted eye (18) with last through hole (15) pallet (2) of obvolvent device (1) and matched, and nut (11) matches with its major diameter of thread.

Before the dismounting belt wheel, select the obvolvent device (1) of respective model according to belt wheel.The obvolvent device (1) that is divided into two parts, a prior end is by in alignment pin (6), fastening bolt (5) (alignment pin (6) passes fastening bolt (5) stomidium) connection, obvolvent belt wheel (8) then, the terminal union end of obvolvent device (1) (14) repeat that head end connects and fastening it, other is installed as Fig. 1.

The cohesion style chest expander is easy to use, by people's fitting operation, just can pull down belt wheel in about tens minutes, and safe and reliable, guarantees that belt wheel is harmless fully.Compare (to the belt wheel that is difficult to dismantle, need 2～3 people's alternate operations, could pull down belt wheel about 1 working day) with existing triangle chest expander and improve 30～50 times of work efficiency, and alleviated labour intensity widely.

Claims

1, as a kind of vee-pulley chest expander, on the basis of original triangle chest expander, carried out whole improvement, it is characterized in that it by:

(1), the annular obvolvent device [1] that is meshed with belt wheel, a plurality of sheaves that are meshed with belt wheel [8] are arranged in the inside of annular obvolvent device [1].

(2), the jack of transferring power [3];

(3), the pallet [2] that has trough of belt hole [18] and disc [16];

(4), being used to connect obvolvent device [1] and pallet [2] and two ends has the load screw rod [4] of reducing and nut [11] to form.

2, chest expander as claimed in claim 1 is characterized in that annular obvolvent device (1) outer rim has the bead more than 2 (12) of uniform symmetry, and the through hole (15) with axially parallel is arranged in its bead end.

3, chest expander as claimed in claim 1 is characterized in that annular obvolvent device (1) outer rim has union end (14), and its union end (14) annular obvolvent device (1) is divided into equal 2 partly or 2 partly more than, and leave gap (19).Have slotted eye (7) and through hole (13) in the end of every part, the fastening bolt (5) that has lock-joint with alignment pin (6), end connects.

4, chest expander as claimed in claim 1 is characterized in that very heavy top is furnished with jacking axle (9).

5, chest expander as claimed in claim 1 is characterized in that disk (17) outer rim on the pallet (2) has and last equate and the disc (16) grooved hole (18) of bead (12) number of obvolvent device (1).