CN206065851U - A kind of novel hydraulic pin removal - Google Patents

Abstract

The utility model provides a novel hydraulic pin puller, comprising: a pin shaft, a connecting plate, a hydraulic jack, an ear seat, a central connecting plate, a small hydraulic jack, a pulling rod, a bolt connector, and a base. The utility model is a new type of hydraulic pin puller, which adopts a double-cylinder hydraulic structure, which can alleviate the physical fatigue of workers during the pin pull process, and improves the safety of the mechanical operation process. A small hydraulic jack is installed at the bottom to increase The length of the pin is improved; the utility model has the advantages of convenient operation, short working hours, low labor intensity, high production efficiency and high safety factor.

Description

A new hydraulic pin puller

technical field

The utility model belongs to the technical field of mechanical assembly, in particular to a novel hydraulic pin puller.

Background technique

Coal mine production machinery and equipment are mostly connected by pins, so the pin puller is a commonly used tool for disassembly and assembly. The traditional pin puller uses cranes, cranes, steel brazes, etc. to pull and pull the pins manually. Or rely on the rapid movement of the ram on the guide rod to generate an impact force, so that the pin shaft is pulled out from the pin hole, which not only has high labor intensity, long acting time, low efficiency, and sometimes damages the pin shaft and parts, but also the working environment Harsh, low safety factor, etc. Therefore, aiming at the above deficiencies, we provide a new hydraulic pin puller with convenient operation, short working hours, low labor intensity, high production efficiency and high safety factor.

Contents of the invention

The utility model provides a novel hydraulic pin puller with convenient operation, short working time, low labor intensity, high production efficiency and high safety factor.

For reaching above-mentioned purpose, the technical scheme that the utility model adopts is as follows:

A new type of hydraulic pin puller, comprising: a pin shaft, a connecting plate, a hydraulic jack, an ear seat, a central connecting plate, a small hydraulic jack, a pulling rod, a bolt connector, and a base. There is an ear seat, the left ear seat of the central connecting plate is connected to a hydraulic jack through a pin shaft, the two hydraulic jacks are connected by a connecting plate through a pin shaft, the connecting plate is connected to a pull rod, and the pull rod is connected to a bolt Connector, the two ends of the right side of the central connecting plate are provided with lug seats, the right ear seats of the central connecting plate are connected to a small hydraulic jack through pin shafts, and the small hydraulic jack is connected to the base.

Further, the cylinder bottom of the hydraulic jack and the small hydraulic jack are welded to the ear seat, and the ear seat is welded to the central connecting plate.

Beneficial effects of the utility model: the utility model is a new type of hydraulic pin puller, which adopts a double-cylinder hydraulic structure, which can alleviate the physical fatigue of the workers during the pin pull process, and improves the safety of the mechanical operation process. A small hydraulic jack is installed to increase the length of the pin; the utility model has the advantages of convenient operation, short working time, low labor intensity, high production efficiency and high safety factor.

Description of drawings

Fig. 1 is a schematic structural view of a new hydraulic pin puller of the present invention.

The numbers in the figure are: 1. Pin shaft, 2. Connecting plate, 3. Hydraulic jack, 4. Ear seat, 5. Central connecting plate, 6. Small hydraulic jack, 7. Pull rod, 8. Bolt connector, 9 .base.

detailed description

The embodiment given below intends to further illustrate the utility model, but can not be interpreted as the limitation to the scope of protection of the utility model, and those skilled in the art still belong to some non-essential improvements and adjustments of the utility model according to the content of the utility model. Protection scope of the present utility model.

In Figure 1, 1. Pin shaft, 2. Connecting plate, 3. Hydraulic jack, 4. Ear seat, 5. Central connecting plate, 6. Small hydraulic jack, 7. Pull rod, 8. Bolt connector, 9 .base.

A new type of hydraulic pin puller, comprising: a pin shaft 1, a connecting plate 2, a hydraulic jack 3, an ear seat 4, a central connecting plate 5, a small hydraulic jack 6, a pulling rod 7, a bolt connector 8, and a base 9. Both ends of the left side of the central connecting plate 5 are provided with ear seats 4, the left ear seats 4 of the central connecting plate 5 are connected to the hydraulic jack 3 through the pin shaft 1, and the two hydraulic jacks 3 are connected by the connecting plate 2 through the pin shaft 1 connection, the connecting plate 2 is connected to the pull rod 7, the pull rod 7 is connected to the bolt connector 8, the two ends of the right side of the central connecting plate 5 are provided with ear seats 4, and the right ear of the central connecting plate 5 The seat 4 is connected to the small hydraulic jack 6 through the pin shaft 1, and the small hydraulic jack 6 is connected to the base 9. The cylinder bottom of the hydraulic jack 3 and the cylinder bottom of the small hydraulic jack 6 are welded to the ear seat 4, and the ear seat 4 is welded to the central Connecting board 5.

When in use, select the bolt of the pin puller according to the size of the threaded hole of the pin shaft; weld the connecting bolt with the lifting ring and install it on the bolt connector; lift the hydraulic pin puller with a lifting device, and connect the connecting bolt and the threaded hole of the pin shaft Connection; connect the pump station, the upper chamber of the oil cylinder returns liquid, the lower chamber enters liquid, and the cylinder barrel moves away from the pin shaft relative to the piston rod, and the pin shaft is pulled out under the drive of the cylinder barrel; the entire pin pulling process is completed . When the length of the pin shaft is greater than the stroke of the push cylinder, a small jack can be connected to the pump station, the upper chamber of the oil cylinder will return liquid, and the lower chamber will enter liquid, so that the cylinder barrel of the push cylinder moves away from the ground relative to the piston rod, increasing the length of the pin, and then Follow the steps above to unplug it.

Claims (1)

1. a kind of novel hydraulic pin removal, including：Bearing pin（1）, connecting plate（2）, hydraulic jack（3）, ear mount（4）, central authorities even Fishplate bar（5）, small-sized hydraulic jack（6）, drawing bar（7）, Bolt Connector（8）, base（9）, it is characterised in that：The central authorities Connecting plate（5）Left side two ends are provided with ear mount（4）, the central web（5）Left side ear mount（4）By bearing pin（1）Connection hydraulic pressure Jack（3）, described two hydraulic jacks（3）By connecting plate（2）By bearing pin（1）Connection, the connecting plate（2）Connection is drawn Dead man（7）, the drawing bar（7）Connecting bolt adapter（8）, the central web（5）Right side two ends are provided with ear mount（4）, The central web（5）Right side ear mount（4）By bearing pin（1）Connection small-sized hydraulic jack（6）, the small-sized hydraulic is very heavy Top（6）Connect base（9）.