CN214495555U

CN214495555U - Novel side-pushing jack

Info

Publication number: CN214495555U
Application number: CN202120425153.6U
Authority: CN
Inventors: 王书蒙; 兰李李; 欧艳梅; 王相亭
Original assignee: Anhui Mining Electromechanical Equipment Co ltd
Current assignee: Anhui Mining Electromechanical Equipment Co ltd
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2021-10-26
Anticipated expiration: 2031-02-26

Abstract

The utility model belongs to the technical field of the jack for the two sides hydraulic support that live in colliery, concretely relates to novel side pushes away jack, including cylinder bottom, cylinder, piston rod, piston and uide bushing, the piston rod is equipped with the one end of piston stretches into inside the cylinder, the uide bushing is established the open end of cylinder, the piston rod is kept away from the one end of piston is passed the uide bushing extends the cylinder outside, the cylinder bottom dress is in the bottom of cylinder, just the round pin shaft hole of cylinder bottom with the round pin shaft hole of cylinder is coaxial, the cylinder bottom with the cylinder passes through the round pin hub connection. The side-pushing jack changes the existing connecting structure of the cylinder bottom and the cylinder barrel, cancels the welding process of the cylinder bottom and the cylinder barrel, enhances the lateral force bearing capacity of the side-pushing jack, and prolongs the service life of the side-pushing jack.

Description

Novel side-pushing jack

Technical Field

The utility model belongs to the technical field of the jack for the two side hydraulic support that lives in the colliery, concretely relates to novel side pushes away jack.

Background

The side-pushing jacks are positioned inside the top beam and the shield beam, the bottom ends of the cylinders are fixed with the side protection plates through pin shaft connecting pieces, the rod ends of the rods are fixed with the top beam or the shield beam through pin shaft connecting pieces, and when the double-side hydraulic support for the coal mine works, the side protection plates tightly push the adjacent hydraulic supports through the extension of the side-pushing jacks, so that a safe operation space is formed. When the support is moved, the hydraulic support can smoothly move forwards along with the machine by withdrawing the side-push jack. When the side-pushing jack works, the side-pushing jack is impacted by the side force due to the sudden pressure of the top plate. Because the side-pushing jack is acted by a lateral force in the working process and the strength of the welding part of the cylinder bottom and the cylinder barrel is weak (see fig. 3, the cylinder bottom and the cylinder barrel of the existing side-pushing jack are connected through a welding process), the side-pushing jack is easy to deform seriously and even break when bearing the lateral force, so that the side-pushing jack is damaged and loses the supporting function.

Disclosure of Invention

In order to overcome the weak point of above-mentioned prior art, the utility model provides a novel side pushes away jack has changed the connection structure of current cylinder end and cylinder, cancels cylinder end and cylinder welding process, and the reinforcing side pushes away the jack and bears the yawing force ability, improves the life of side pushes away the jack.

The utility model discloses a realize through following technical scheme: the utility model provides a novel side pushes away jack, includes cylinder bottom, cylinder, piston rod, piston and uide bushing, the piston rod is equipped with the one end of piston stretches into inside the cylinder, the uide bushing is established the open end of cylinder, the piston rod is kept away from the one end of piston is passed the uide bushing extends the cylinder outside, the cylinder bottom dress is in the bottom of cylinder, just the round pin shaft hole at the cylinder bottom with the round pin shaft hole of cylinder is coaxial, the cylinder bottom with the cylinder passes through the round pin hub connection.

Further, the cylinder comprises a threaded cylinder bottom, the threaded cylinder bottom is located between the cylinder bottom and the piston, and the threaded cylinder bottom is in threaded connection with the cylinder barrel.

Further, the piston is in threaded connection with the piston rod, and the guide sleeve is in threaded connection with the cylinder barrel.

The utility model has the advantages that: the application changes the existing connecting structure of the cylinder bottom and the cylinder barrel, cancels the welding process of the cylinder bottom and the cylinder barrel, enhances the lateral force bearing capacity of the lateral pushing jack, and prolongs the service life of the lateral pushing jack.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a second embodiment of the present invention;

fig. 3 is a schematic structural diagram of the prior art.

In the figure, the cylinder comprises a cylinder bottom I, a cylinder bottom 1b, a cylinder bottom II, a threaded cylinder bottom 2, a threaded cylinder bottom 3a, a cylinder barrel I, a cylinder barrel 3b, a cylinder barrel II, a cylinder barrel 4a, a piston rod I, a piston rod 4b, a piston rod II, a piston rod 5a, a piston I, a piston rod 5b, a piston II, a piston 6a, a guide sleeve I, a guide sleeve 6b and a guide sleeve II.

Detailed Description

The invention will be further explained below with reference to the drawings and examples.

The first embodiment:

as shown in figure 1, a novel side pushes away jack, including I1 a at the bottom of the cylinder, cylinder I3 a, piston rod I4 a, piston I5 a and uide bushing I6 a, the inside of cylinder I3 a is equipped with the location shaft shoulder towards I3 a open end of cylinder (the one end that is equipped with piston rod I4 a is the I3 a open end of cylinder), and this location shaft shoulder is used for supporting I1 a at the bottom of the cylinder. The cylinder bottom I1 a is assembled through the open end of the cylinder barrel I3 a, so that the pin shaft hole of the cylinder bottom I1 a is coaxial with the pin shaft hole of the cylinder barrel I3 a, and the cylinder bottom I1 a is connected with the cylinder barrel I3 a through a pin shaft. Two static seals are assembled on the cylinder bottom I1 a for sealing, and liquid leakage is prevented. The piston I5 a with I4 a of piston rod passes through threaded connection to stretch into I3 a of cylinder with I4 a's one end that is equipped with piston I5 a of piston rod inside, with the open end threaded connection of uide bushing I6 a and I3 a of cylinder, uide bushing I6 a plays guiding motion and spacing effect to I4 a of piston rod. Specifically, when the assembly, earlier with guide sleeve I6 a suit on piston rod I4 a, again with piston rod I4 a and I5 a threaded connection of piston together, stretch into cylinder I3 a with the one end that I4 a was equipped with piston I5 a inside, then with guide sleeve I6 a and I3 a threaded tightening of cylinder.

Second embodiment:

as shown in figure 2, the novel side-push jack comprises a cylinder bottom II 1b, a threaded cylinder bottom 2, a cylinder barrel II 3b, a piston rod II 4b, a piston II 5b and a guide sleeve II 6b, wherein a positioning shaft shoulder facing the bottom of the cylinder barrel II 3b (one end provided with the cylinder bottom II 1b is the bottom of the cylinder barrel II 3 b) is arranged inside the cylinder barrel II 3b, and the positioning shaft shoulder is used for supporting the threaded cylinder bottom 2. The threaded cylinder bottom 2 is installed from the bottom of the cylinder barrel II 3b, and the threaded cylinder bottom 2 is in threaded connection with the cylinder barrel II 3 b. And a static seal is assembled on the threaded cylinder bottom 2 for sealing, so that liquid leakage is prevented. The cylinder bottom II 1b is also installed from the bottom of the cylinder barrel II 3b, so that a pin shaft hole of the cylinder bottom II 1b is coaxial with a pin shaft hole of the cylinder barrel II 3b, and the cylinder bottom II 1b is connected with the cylinder barrel II 3b through a pin shaft. The piston II 5b is in threaded connection with the piston rod II 4b, one end, provided with the piston II 5b, of the piston rod II 4b extends into the cylinder II 3b, the guide sleeve II 6b is in threaded connection with the opening end of the cylinder II 3b, and the guide sleeve II 6b plays a role in guiding movement and limiting on the piston rod II 4 b. Specifically, during assembly, the guide sleeve II 6b is sleeved on the piston rod II 4b, the piston rod II 4b is connected with the piston II 5b in a threaded mode, one end, provided with the piston II 5b, of the piston rod II 4b extends into the cylinder II 3b, and then the guide sleeve II 6b is screwed with the cylinder II 3b in a threaded mode.

The optimized side-push jack of the two embodiments changes the structure of the cylinder bottom and the cylinder barrel, cancels the welding process of the cylinder bottom and the cylinder barrel, increases the strength of the cylinder body, can reduce the deformation and the damage of the cylinder body, and prolongs the service life of the side-push jack.

Claims

1. The utility model provides a novel jack is pushed to side, includes cylinder bottom, cylinder, piston rod, piston and uide bushing, the piston rod is equipped with the one end of piston stretches into inside the cylinder, the uide bushing is established the open end of cylinder, the piston rod is kept away from the one end of piston is passed the uide bushing extends the cylinder outside, its characterized in that: the cylinder bottom is arranged at the bottom of the cylinder barrel, a pin shaft hole of the cylinder bottom is coaxial with a pin shaft hole of the cylinder barrel, and the cylinder bottom is connected with the cylinder barrel through a pin shaft.

2. The novel side-pushing jack of claim 1, wherein: the piston cylinder further comprises a threaded cylinder bottom, the threaded cylinder bottom is located between the cylinder bottom and the piston, and the threaded cylinder bottom is in threaded connection with the cylinder barrel.

3. A novel side pushing jack as claimed in claim 1 or 2, wherein: the piston is in threaded connection with the piston rod, and the guide sleeve is in threaded connection with the cylinder barrel.