CN211277304U

CN211277304U - Hydraulic plug pin device

Info

Publication number: CN211277304U
Application number: CN201922218328.1U
Authority: CN
Inventors: 张通友; 戴立虎; 李艳; 后建敏; 刘彬; 孟庆琳
Original assignee: Shandong Fenghui Equipment Technology Co Ltd
Current assignee: Shandong Fenghui Equipment Technology Co Ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-08-18
Anticipated expiration: 2029-12-12

Abstract

The utility model discloses a hydraulic pin inserting and pulling device, which comprises a crossover sub, an oil cylinder, a pin shaft and a stop block, wherein one end of the crossover sub is hung at the end part of a component connecting pin shaft, and the other end is screwed on a screw rod at the head part of a piston rod of the oil cylinder through internal threads; the other end of the oil cylinder is arranged in a semi-arc-shaped clamping groove on the side surface of the stop block through a pin shaft; the two stop blocks are respectively fixed at a first position and a second position on the supporting structure and used for pushing and pulling. The utility model discloses simple operation, safe and reliable, labour saving and time saving, but the operation is dismantled in the part installation of all kinds of engineering machine tool equipment to wide application.

Description

Hydraulic plug pin device

Technical Field

The utility model relates to a hydraulic pressure plug pin device is particularly useful for the round pin axle dismouting operation between the narrow large-scale part in space, and the operation is very convenient, belongs to the engineering machine tool field.

Background

With the development of national economy and the construction of large-scale infrastructure, various engineering machines are in forward large-scale, heavy-duty and component compact evolution, connecting pin shafts of various components are thicker, and the space of the connecting positions of various components is narrow. The installation of the pin shaft is basically realized by swinging a sledge hammer manually for a long time, but the sledge hammer is very difficult to hammer into the pin shaft with large models, time and labor are wasted, and the sledge hammer is not used for unfolding in areas with narrow spaces, so that the design is greatly limited if the problem of component installation and disassembly under the conditions cannot be well solved.

Disclosure of Invention

The utility model aims to solve the technical problem that to the defect that prior art exists, a hydraulic pressure plug pin device is provided.

In order to solve the technical problem, the utility model provides a hydraulic pin inserting and pulling device, which comprises a crossover sub, an oil cylinder, a pin shaft and a stop block, wherein one end of the crossover sub is hung at the end part of a part connecting pin shaft, and the other end is screwed on a screw rod at the head part of a piston rod of the oil cylinder through internal threads; the other end of the oil cylinder is arranged in a semi-arc-shaped clamping groove on the side surface of the stop block through a pin shaft; the two stop blocks are respectively fixed at a first position and a second position on the supporting structure and used for pushing and pulling.

The two sides of the stop block are respectively provided with a semi-arc-shaped stop block clamping groove left arc surface and a stop block clamping groove right arc surface, and the pin shaft is arranged in the arc surfaces of the stop block; the left cambered surface of the stop block clamping groove is used when the oil cylinder pushing part is connected with the pin shaft; the right cambered surface of the stop block clamping groove is used when the oil cylinder pulling part is connected with the pin shaft.

The shoulder of the component connecting pin shaft mills a plane for preventing the component connecting pin shaft from rolling back and forth on the supporting plate.

The center of the side end face of the shaft shoulder of the component connecting pin shaft is provided with a threaded hole, a hexagon head bolt is screwed in, and the adapter and the component connecting pin shaft are connected through the hexagon head bolt and transmit pushing force and drawing force.

Has the advantages that: 1) for parts with narrow space at the joints, such as the pin shaft of a large-scale supporting rotary table, the pin shaft is hammered into by a sledge hammer to be spread, which brings great trouble to installation and even overturns the implementation of the whole scheme. The hydraulic pin plugging and unplugging device of the utility model can well solve the problem; 2) the fixing mode of the connecting pin shaft between the end part of the oil cylinder and the main structure is not the traditional mode of penetrating through a circular through hole, but a stop block with a semi-circular arc-shaped clamping groove is designed, the pin shaft is directly clamped into the semi-circular arc-shaped clamping groove, so that the pushing and the drawing of the oil cylinder can be realized, the penetrating and the installing of the pin shaft are not needed, the installing and positioning time of the oil cylinder is greatly shortened, and the convenience and the practicability are greatly improved; 3) compared with the traditional method, the utility model provides high large-scale engineering machine tool component's installation rate, the top pushes away the process also more steady, does not basically harm the pin shaft, still can reduce the danger that the workman ann torn open in addition. The operation is convenient, safe and reliable, time-saving and labor-saving, and the device can be widely applied to the assembly and disassembly operation of parts of various engineering mechanical equipment.

Drawings

Fig. 1 is a structural axis measuring and indicating diagram of the present invention;

FIG. 2a is a schematic view of the initial position of the first step pushing of the present invention;

FIG. 2b is a schematic view of the completion status of the first step pushing of the present invention;

FIG. 2c is a schematic view of the second step of pushing of the present invention;

fig. 2d is a schematic diagram of the second step of pushing of the present invention.

In the figure: 1 hexagon head bolt, 2 crossover sub, 3 hydro-cylinders, 4 round pin axles, 5 dog, 501 dog draw-in groove left cambered surface, 502 dog draw-in groove right cambered surface, 6 part connecting pin axles.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

Fig. 1 shows a structural axis measuring and indicating diagram of the present invention.

The utility model provides a hydraulic pin inserting and pulling device, which comprises a conversion joint 2, an oil cylinder 3, a pin shaft 4 and a stop block 5, wherein one end of the conversion joint 2 is hung at the end part of a component connecting pin shaft 6, and the other end is screwed on a screw rod at the head part of a piston rod of the oil cylinder 3 through internal threads; the other end of the oil cylinder 3 is arranged in a semi-arc-shaped clamping groove on the side surface of the stop block 5 through a pin shaft 4.

The two stop blocks 5 are respectively fixed at a first position and a second position on the supporting structure and used for pushing and pulling.

A semi-arc-shaped stopper clamping groove left arc surface 501 and a stopper clamping groove right arc surface 502 are respectively arranged on two sides of the stopper 5, and the pin shaft 4 is arranged in the arc surfaces of the stopper 5; the left cambered surface 501 of the stop dog clamping groove is used when the pushing part of the oil cylinder 3 is connected with the pin shaft 6; the right cambered surface 502 of the stop dog clamping groove is used when the oil cylinder 3 is pulled out and is connected with the pin shaft 6.

When the mounting component is connected with the pin 6, the oil cylinder 3 pushes the initial mounting position for the first step, and the pin 4 is clamped at the left cambered surface 501 of the stop dog clamping groove of the stop dog 5 at the position 2. In order to meet the use performance of the pin inserting and pulling device, the part connecting pin shaft 6 is specially designed, a threaded hole is processed in the center of the end face of the shaft shoulder side, and the hexagonal head bolt 1 can be conveniently screwed in to transmit pushing force and pulling force; furthermore, to prevent rolling back and forth on the pallet, the shoulders mill a flat surface.

When the component connecting pin shaft 6 is installed, the shoulder plane of the component connecting pin shaft 6 is placed on the supporting plate downwards, and the hexagon head bolt 1 is screwed into the thread on the end face of the component connecting pin shaft 6. The adapter 2 is provided with an open groove so as to be connected with a nut hung in the hexagon head bolt 1, and in addition, the adapter 2 is provided with a threaded hole so as to be connected with a screw rod on the oil cylinder 3 conveniently. The adapter 2 and the oil cylinder 3 are connected together through threads and then hung in a nut of the hexagon head bolt 1, and finally the oil cylinder is clamped at a left cambered surface 501 of a stop block clamping groove of a stop block 5 at a position 2 through a pin shaft 4, as shown in fig. 2 a.

The hydraulic system is operated to extend the cylinder 3 to the maximum extension stroke, which is shown in fig. 2b, and the part connecting pin 6 is partially pushed into the lug plate pin hole.

And then operating the hydraulic system to retract the cylinder, after the oil cylinder 3 contracts for a proper stroke, clamping the pin shaft 4 at the end part of the oil cylinder 3 at the left cambered surface 501 of the stop block clamping groove of the stop block 5 at the position 1, namely pushing the initial installation position of the oil cylinder 3 at the second step, as shown in fig. 2 c.

Similarly, the hydraulic system is operated again to extend the cylinder 3 until the component connecting pin 6 is pushed completely into place, as shown in fig. 2 d.

And finally, operating the hydraulic system to retract the cylinder until the cylinder is in an initial installation state, disassembling the plug pin device and preparing for pushing operation of other parts. In addition, the disassembly of the component connecting pin 6 is the reverse process of the assembly, and when the oil cylinder 3 is drawn out of the component connecting pin 6, the pin 4 at the end part of the oil cylinder 3 needs to be clamped at the right cambered surface 502 of the stop block clamping groove of the stop block 5.

The above description is provided for the embodiments of the present invention, but not for the limitation of the protection scope of the present invention, and it should be understood by those skilled in the art that, on the basis of the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without inventive work are still within the protection scope of the present invention.

Claims

1. The utility model provides a hydraulic pressure plug pin device which characterized in that: the hydraulic oil cylinder is characterized by comprising an adapter (2), an oil cylinder (3), a pin shaft (4) and a stop block (5), wherein one end of the adapter (2) is hung at the end part of a component connecting pin shaft (6), and the other end of the adapter (2) is screwed on a screw rod at the head part of a piston rod of the oil cylinder (3) through internal threads; the other end of the oil cylinder (3) is arranged in a semi-circular arc-shaped clamping groove on the side surface of the stop block (5) through a pin shaft (4); the two stop blocks (5) are respectively fixed at a first position and a second position on the supporting structure and used for pushing and drawing.

2. The hydraulic plug pin device of claim 1, wherein: a semi-arc-shaped stopper clamping groove left arc surface (501) and a stopper clamping groove right arc surface (502) are respectively arranged on two sides of the stopper (5), and the pin shaft (4) is arranged in the arc surfaces of the stopper (5); the left cambered surface (501) of the stop block clamping groove is used when the oil cylinder (3) pushes a part to be connected with the pin shaft (6); the right cambered surface (502) of the stop block clamping groove is used when the oil cylinder (3) is pulled out and connected with the pin shaft (6).

3. The hydraulic plug pin device of claim 1, wherein: the shoulder of the component connecting pin (6) mills a plane for preventing rolling back and forth on the supporting plate.

4. The hydraulic plug pin device according to claim 1, 2 or 3, characterized in that: the center of the side end face of the shaft shoulder of the component connecting pin shaft (6) is provided with a threaded hole, a hexagon head bolt (1) is screwed in, and the adapter (2) is connected with the component connecting pin shaft (6) through the hexagon head bolt (1) and transmits pushing force and drawing force.