Novel oil cylinder base pulling device

Abstract

The utility model relates to the field of metallurgical industry, in particular to a novel oil cylinder base pulling device which comprises an oil cylinder base, fixing holes are formed in the two ends of the oil cylinder base, the oil cylinder base is arranged in the fixing holes in a penetrating mode, an oil cylinder is installed between the two fixing holes, and oil cylinder plug pins are sequentially arranged in the fixing holes and the oil cylinder in a penetrating mode so that the oil cylinder can be connected with the oil cylinder base. The novel oil cylinder base pulling device is simple in structure, small in size and low in cost, adopts mechanical threads as a driving mode, does not need to use hydraulic pressure and electricity, is wide in applicability, can be suitable for various environments and various working conditions, and can be widely applied to various working conditions. The device is simple in structure, easy to operate and convenient to use, meanwhile, deformation of the oil cylinder base caused by knocking of a sledge hammer is avoided, the service life of the oil cylinder base is prolonged, the oil cylinder bolt pulling-out efficiency is greatly improved, and therefore the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of metallurgical industry, and specifically relates to a novel oil cylinder base pulling and drawing device. BACKGROUND

[0002] Pin shaft is a kind of standard fastener, mainly used for the hinged joint of two parts to constitute hinge connection, since the heavy equipment is used in steel plant, so oil cylinder drive needs to be used in many places in steel plant, and the connection mode of most oil cylinders is pin shaft type connection, that is, pin shaft is used to pass through oil cylinder joint bearing to be fixed, and oil cylinder needs to be replaced after using a certain period, and old oil cylinder can be lifted away from the scene by pulling out pin shaft, and the current pin shaft pulling-out mode is generally to knock out pin shaft by using a hammer.

[0003] At present, the existing oil cylinder pin shaft dismounting mode generally uses hammer to knock pin shaft out, sometimes pin shaft is deformed and swollen to cause pin shaft to be unable to be pulled out, and only destructive dismounting can be carried out by using flame cutting, and hydraulic lifting device is also used, but the working environment of some oil cylinders is very small, and is accompanied by high temperature and high humidity environment, and hydraulic lifting device also needs to use electricity, so in many cases, hydraulic lifting device cannot be used, thereby causing oil cylinder pin shaft to be difficult to pull out, and reducing work efficiency. SUMMARY

[0004] The utility model mainly aims at solving the above-mentioned existing technical problem, and provides a novel oil cylinder base pulling and drawing device.

[0005] The specific scheme of the utility model is: a novel oil cylinder base pulling and drawing device, which comprises an oil cylinder base, the oil cylinder base is provided with fixing holes at both ends, oil cylinder pins are arranged in the fixing holes, an oil cylinder is arranged between the two fixing holes, the oil cylinder pins are sequentially arranged in the fixing holes and the oil cylinder, so that the oil cylinder is connected with the oil cylinder base, one end of the oil cylinder base is provided with an internal thread hole, a lifting rod is connected with the internal thread hole, the surface of the lifting rod is provided with right-handed threads and left-handed threads, the right-handed threads are located at one end of the lifting rod, so that the lifting rod is threadedly connected with the internal thread hole, a sleeve is arranged on the surface of the lifting rod, the inner diameter of the sleeve is larger than the diameter of the oil cylinder base, a nut is threadedly connected with the surface of the lifting rod, the nut is matched with the left-handed threads, the length of the left-handed threads is longer than the length of the oil cylinder base, and the nut is located at one side of the sleeve, so that the nut pushes the sleeve to one side of the oil cylinder base when the nut moves.

[0006] According to the above technical scheme, the sleeve is pushed to one side by the forward rotation of the lifting rod and the reverse rotation of the nut, and one end of the sleeve clamps the oil cylinder base, since one end of the lifting rod is right-handed and is connected with the oil cylinder base, when the lifting rod moves outwards in the nut, the oil cylinder base can be pulled out.

[0007] Further, the square-shaped end of the lifting rod is away from the oil cylinder base.

[0008] According to the above technical scheme, the square-shaped lifting rod facilitates the rotation of the wrench.

[0009] Further, the length of the right-handed thread is 5mm-1cm, and the right-handed thread is matched with the internal screw hole.

[0010] According to the above technical scheme, the length of the right-handed thread is 5mm-1cm, which can effectively improve the connection stability of the lifting rod and the oil cylinder base, and avoid the situation of falling off.

[0011] Further, the length of the left-handed thread is longer than the length of the oil cylinder base by 5mm-1cm.

[0012] According to the above technical scheme, the length of the left-handed thread is longer than the length of the oil cylinder base, which can ensure that the lifting rod has enough spiral movement space and avoid the situation that the oil cylinder base cannot be pulled out.

[0013] Further, the inner diameter of the sleeve is larger than the diameter of the oil cylinder base by 4mm-7mm.

[0014] According to the above technical scheme, the inner diameter of the sleeve is larger than the diameter of the oil cylinder base, which can prevent the oil cylinder base from being hindered by the sleeve when being moved out.

[0015] Compared with the prior art, the novel oil cylinder base pulling and pulling device has the following advantages: the novel oil cylinder base pulling and pulling device has simple structure, small size and low cost, uses mechanical threads as driving mode, does not need to use hydraulic pressure and electricity, has wide applicability, can be applied to various environments and various working conditions, is simple to operate and convenient to use, avoids the situation that the oil cylinder base is deformed due to hammering, prolongs the service life of the oil cylinder base, greatly improves the efficiency of pulling out the oil cylinder bolt, and thus improves the work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a perspective view of the utility model;

[0017] Figure 2 is Figure 1 a left side view of the utility model;

[0018] Figure 3 is Figure 2 an A-A sectional view of the utility model;

[0019] Figure 4 is Figure 3 an enlarged view of the structure at B of the utility model;

[0020] Figure 5 is a structure schematic view of the lifting rod of the utility model;

[0021] Figure: 1, oil cylinder base; 2, oil cylinder; 3, oil cylinder bolt; 4, fixed hole; 5, internal thread hole; 6, lifting rod; 7, right-handed thread; 8, left-handed thread; 9, sleeve; 10, nut. DETAILED DESCRIPTION

[0022] Reference Figures 1-5 , the embodiment is a new type of oil cylinder base puller, which is composed of an oil cylinder base 1, an oil cylinder 2 and an oil cylinder bolt 3, etc. The oil cylinder base 1 is in the shape of a U, and fixed holes 4 are provided on both ends. The oil cylinder bolt 3 is provided in the fixed holes 4, and the oil cylinder 2 is installed between the two fixed holes 4. The oil cylinder bolt 3 passes through one end of the fixed hole 4, then through the fixed end of the oil cylinder 2, and finally through the other end of the fixed hole 4, so that the oil cylinder 2 is connected with the oil cylinder base 1. One end of the oil cylinder bolt 3 is provided with an internal thread hole 5, and a lifting rod 6 is threadedly connected with the internal thread hole 5. The surface of the lifting rod 6 is provided with right-handed threads 7 and left-handed threads 8. The right-handed threads 7 are located at one end of the lifting rod 6, so that the lifting rod 6 is threadedly connected with the internal thread hole 5. The left-handed threads 8 are located on one side of the right-handed threads 7. A sleeve 9 is provided on the surface of the lifting rod 6, and the inner diameter of the sleeve 9 is greater than the diameter of the oil cylinder base 1. A nut 10 is threadedly connected with the surface of the lifting rod 6, and the nut 10 is matched with the left-handed threads 8. The length of the left-handed threads 8 is longer than the length of the oil cylinder base 1. The nut 10 is located on the outside of the sleeve 9, so that when the nut 10 moves, it pushes the sleeve 9 to one side of the oil cylinder base 1, so that the sleeve 9 is tightly attached to the oil cylinder base 1.

[0023] Further, one end of the lifting rod 6 away from the oil cylinder base 1 is square-shaped, which is convenient for a wrench to hold and rotate.

[0024] Further, the length of the right-handed threads 7 is 5mm~1cm, and the length of the right-handed threads 7 is matched with the internal thread hole 5. The length should be appropriate, and a shorter length can easily lead to unstable connection of the lifting rod 6 with the oil cylinder base 1.

[0025] Further, the length of the left-handed threads 8 is longer than the length of the oil cylinder base 1 by 5mm~1cm, which can effectively ensure that the oil cylinder base 1 is completely pulled out.

[0026] Further, the inner diameter of the sleeve 9 is greater than the diameter of the oil cylinder base 1 by 4mm~7mm, which can effectively ensure that the oil cylinder base 1 is not blocked by the sleeve 9 when being pulled out.

[0027] The working principle of the embodiment is as follows: when the oil cylinder base 1 is pulled out, first, the right thread 7 at one end of the lifting rod 6 is screwed with the internal screw hole 5 at one end of the oil cylinder base 1, then the sleeve 9 is sleeved on the surface of the lifting rod 6, finally, the nut 10 is screwed with the reverse thread 8 on the surface of the lifting rod 6 and pushes the sleeve 9 to one side, so that the other end of the sleeve 9 is tightly attached to the oil cylinder base 1, then the lifting rod 6 is rotated in the right direction while the nut 10 is rotated in the reverse direction, and the sleeve 9 is always pushed against the oil cylinder base 1 by the nut 10, so that the lifting rod 6 moves to the outside, since the lifting rod 6 and the oil cylinder base 1 are connected together, when the lifting rod 6 moves, the oil cylinder bolt 3 is also pulled out, when the oil cylinder bolt 3 is pulled out, directly reversing the nut 10 can also make the lifting rod 6 move to one side, when the oil cylinder base 1 is installed again, the operation is reversed, which greatly improves the convenience and efficiency of pulling out the oil cylinder base 1.

Claims

1. A novel oil cylinder base pulling and drawing device, comprising an oil cylinder base, both ends of the oil cylinder base are provided with fixing holes, an oil cylinder plug is sequentially arranged in the fixing holes, an oil cylinder is arranged between the two fixing holes, the oil cylinder plug is sequentially arranged in the fixing holes and the oil cylinder, so that the oil cylinder is connected with the oil cylinder base, characterized in that, The oil cylinder base is provided with an inner screw hole at one end, the inner screw hole is connected with a lifting rod, the surface of the lifting rod is provided with a right-handed thread and a left-handed thread, the right-handed thread is located at one end of the lifting rod, so that the lifting rod is threadedly connected with the inner screw hole, a sleeve is arranged on the surface of the lifting rod, the inner diameter of the sleeve is greater than the diameter of the oil cylinder base, a nut is threadedly connected to the surface of the lifting rod, the nut is matched with the left-handed thread, the length of the left-handed thread is longer than the length of the oil cylinder base, and the nut is located at one side of the sleeve, so that the nut pushes the sleeve to one side of the oil cylinder base when the nut moves.

2. The novel pulling and drawing device for oil cylinder base according to claim 1, characterized in that, The lifting rod is square away from one end of the oil cylinder base.

3. A new type of pulling device for oil cylinder base according to claim 1 or 2, characterized in that, The length of the right-handed thread is 5mm-1cm, and the right-handed thread is matched with the inner screw hole.

4. A new type of pulling device for oil cylinder base according to claim 1 or 2, characterized in that, The length of the left-handed thread is 5mm-1cm longer than the length of the oil cylinder base.

5. A new type of pulling device for oil cylinder base according to claim 1 or 2, characterized in that, The inner diameter of the sleeve is 4mm-7mm greater than the diameter of the oil cylinder base.

Images