CN218717831U

CN218717831U - Straddle type installation hydraulic swing oil cylinder

Info

Publication number: CN218717831U
Application number: CN202220878257.7U
Authority: CN
Inventors: 王兴利
Original assignee: Weihai Yuhui Machinery Co ltd
Current assignee: Weihai Yuhui Machinery Co ltd
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2023-03-24
Anticipated expiration: 2032-04-15

Abstract

The utility model discloses a straddle-type mounting hydraulic swing oil cylinder, which comprises a cylinder body, wherein a trapezoidal thread sleeve is welded on the inner peripheral side of the cylinder body, a trapezoidal inner and outer thread piston is in threaded connection with the inner peripheral side of the trapezoidal thread sleeve, a trapezoidal thread shaft is in threaded connection with the inner peripheral side of the trapezoidal inner and outer thread piston, the two ends of the trapezoidal thread shaft are respectively and fixedly connected with a front output shaft and a rear output shaft which extend to the outer parts of the two ends of the cylinder body, and a sealing element which is in sealed connection with the surface of the rear output shaft is sleeved in the rear end of the cylinder body; the utility model discloses a setting of preceding output shaft and back output shaft realizes the diaxon output torque of hydraulic swing hydro-cylinder, and the use of trapezoidal internal and external screw thread piston cooperation trapezoidal thread cover and trapezoidal thread axle has not only increased the moment of torsion of hydraulic swing hydro-cylinder simultaneously, has increased its moment of flexure simultaneously, and prevents that the phenomenon of deformation from appearing in the hydraulic swing hydro-cylinder, and this hydraulic swing hydro-cylinder is applicable to the big heavy mining equipment and the engineering equipment of moment of torsion, moment of flexure are big, has improved the application range of hydraulic swing hydro-cylinder.

Description

Straddle type installation hydraulic swing oil cylinder

Technical Field

The utility model relates to a hydraulic pressure swing hydro-cylinder field especially relates to a straddle type installation hydraulic pressure swing hydro-cylinder.

Background

The hydraulic swing cylinder is a closely assembled fitting, the hydraulic pressure is applied in a small space to integrate very high torque, a combined helical tooth structure is adopted in the hydraulic swing cylinder, the whole swing cylinder can generate large torque in a small space, the hydraulic swing cylinder can still be accurately and easily controlled in spite of high power, the swing cylinder is successfully applied to almost all fields requiring limited rotary motion and large torque, the hydraulic swing cylinder can be used under very severe conditions and underground and below 2300 meters of sea level, and the most compact structure can realize high torque output, high bearing capacity, impact resistance, zero leakage and flexible installation.

In the prior art, a hydraulic swing oil cylinder can only output a single moment, so that the torque is small, the bending moment is small, and the hydraulic swing oil cylinder is inconvenient to use in heavy mining equipment and engineering equipment with large torque and large bending moment.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a straddle type installation hydraulic swing oil cylinder to solve the problem provided in the above background art.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a straddle type installation hydraulic pressure swing hydro-cylinder, includes the barrel, the lateral welding has trapezoidal thread bush in the barrel, the internal side threaded connection of trapezoidal thread bush has trapezoidal internal and external thread piston, and the internal side threaded connection of trapezoidal internal and external thread piston has trapezoidal thread axle, the both ends difference rigid coupling of trapezoidal thread axle has the preceding output shaft and the back output shaft that extend to barrel both ends outside, and the inside registrate of barrel rear end have with back output shaft sealing connection's sealing member.

As an optimal technical scheme of the utility model, trapezoidal thread axle, preceding output shaft and back output shaft formula structure as an organic whole.

As a preferred technical scheme of the utility model, the installation base has been welded respectively to the front and back end of barrel downside, and the both ends of installation base all run through threaded hole.

As an optimal technical scheme of the utility model, front end housing and rear end cap have been welded respectively in the outside of preceding output shaft and back output shaft, and the periphery on front end housing and rear end cap surface has a plurality of connecting holes along annular equidistance through.

As the utility model discloses a preferred technical scheme, the length of trapezoidal thread cover is greater than the length of trapezoidal internal and external thread piston, and trapezoidal internal and external thread piston is located the middle part of trapezoidal thread cover.

As a preferred technical scheme of the utility model, the front and back end of barrel upside is provided with the oiling mouth respectively, the upper end of oiling mouth is provided with the oil cap, and is provided with the oil storage cavity with two oiling mouths intercommunication respectively between the trapezoidal thread bush outside and the barrel inboard, and barrel inner chamber's front and back both ends form the water conservancy diversion cavity through trapezoidal inside and outside threaded piston respectively, communicate through leading the oilhole between oil storage cavity and the water conservancy diversion cavity.

Compared with the prior art, the utility model discloses the beneficial effect that can reach is:

the utility model discloses a setting of preceding output shaft and back output shaft, realize the diaxon output torque of hydraulic swing hydro-cylinder, set up trapezoidal internal and external screw thread piston into trapezium structure simultaneously, and the trapezoidal thread cover of cooperation rather than adaptation and the use of trapezoidal thread axle, the moment of torsion of hydraulic swing hydro-cylinder has not only been increased, its moment of flexure has been increased simultaneously, and prevent that the phenomenon of deformation from appearing in the hydraulic swing hydro-cylinder, this hydraulic swing hydro-cylinder is applicable to that the moment of torsion is big, heavy mining equipment and engineering equipment that the moment of flexure is big, the application range of hydraulic swing hydro-cylinder has been improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a rear view of the present invention;

fig. 3 is a top view of the present invention;

fig. 4 is a schematic structural view of the inside of the cylinder body of the present invention;

FIG. 5 is an enlarged view of a portion a of FIG. 4;

wherein: 1. a barrel; 2. a front output shaft; 3. a rear output shaft; 4. a rear end cap; 5. a front end cap; 6. installing a base; 7. an oil filling port; 8. a seal member; 9. trapezoidal internal and external thread pistons; 10. a trapezoidal thread bush; 11. an oil storage cavity; 12. a flow guide cavity; 13. an oil guide hole; 14. trapezoidal thread axle.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the invention easy to understand, the invention is further explained below with reference to the specific embodiments, but the following embodiments are only the preferred embodiments of the invention, not all. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in fig. 1-4, the utility model provides a straddle-type installation hydraulic swing cylinder, including barrel 1, the upside front and back end of barrel 1 is provided with the through-hole of injection pressure oil respectively, trapezoidal thread cover 10 has been welded to the barrel 1 inner periphery, trapezoidal thread cover 10 inner periphery screw thread connection has trapezoidal internal and external screw thread piston 9, and trapezoidal thread connection has trapezoidal thread axle 14 in trapezoidal internal and external screw thread piston 9 inner periphery screw thread connection, trapezoidal thread axle 14's both ends rigid coupling has front output shaft 2 and the back output shaft 3 that extends to barrel 1 both ends outside respectively, and barrel 1 rear end's inside registrates with back output shaft 3 surface sealing connection's sealing member 8, specifically, trapezoidal thread axle 14, front output shaft 2 and back output shaft 3 formula structure as an organic whole;

in this embodiment, the trapezoidal internal and external threaded pistons 9 cooperate with the pressure oil at the front and rear ends inside the cylinder 1 to perform rotary motion, and cooperate with the trapezoidal threaded shaft 14 to drive the front output shaft 2 and the rear output shaft 3 at the front and rear ends to swing, so as to realize the two-axis output torque of the hydraulic swing cylinder, the trapezoidal internal and external threaded pistons 9 are set to be of a trapezoidal structure, and cooperate with the trapezoidal thread sleeve 10 and the trapezoidal threaded shaft 14 adapted thereto, so that not only is the torque of the hydraulic swing cylinder increased, but also the bending moment of the hydraulic swing cylinder is increased, and the phenomenon of deformation of the hydraulic swing cylinder is prevented.

As shown in fig. 3, in the embodiment, the front and rear ends of the lower side of the cylinder 1 are respectively welded with the mounting bases 6, and both ends of the mounting bases 6 are penetrated with threaded holes;

in the embodiment, the installation base 6 arranged at the front end and the rear end of the lower side of the cylinder body 1 and the threaded holes penetrating through the surface of the installation base 6 are used for facilitating the connection of the hydraulic swing oil cylinder and a host machine through the threaded holes penetrating through the bolts.

As shown in fig. 1 and 2, in the embodiment, a front end cover 5 and a rear end cover 4 are welded to the outer sides of a front output shaft 2 and a rear output shaft 3 respectively, and a plurality of connecting holes penetrate through the peripheries of the surfaces of the front end cover 5 and the rear end cover 4 at equal intervals along a ring shape;

in this embodiment, the front end cover 5 and the rear end cover 4 are welded to the end portions of the front output shaft 2 and the rear output shaft 3, respectively, and the front end cover 5 and the rear end cover 4 are matched with the connecting holes penetrating through the surfaces of the front end cover 5 and the rear end cover 4, so that the front output shaft 2 and the rear output shaft 3 can be conveniently connected with the driving member.

As shown in fig. 4 and 5, in the embodiment, the length of the trapezoidal thread bush 10 is greater than the length of the trapezoidal internal and external thread piston 9, and the trapezoidal internal and external thread piston 9 is located in the middle of the trapezoidal thread bush 10, specifically, the front end and the rear end of the upper side of the barrel 1 are respectively provided with the oil injection ports 7, the upper end of the oil injection port 7 is provided with an oil cap, an oil storage cavity 11 communicated with the two oil injection ports 7 is respectively arranged between the outer side of the trapezoidal thread bush 10 and the inner side of the barrel 1, the front end and the rear end of the inner cavity of the barrel 1 form a diversion cavity 12 through the trapezoidal internal and external thread piston 9, and the oil storage cavity 11 is communicated with the diversion cavity 12 through the oil guide hole 13;

in this embodiment, when the hydraulic swing cylinder is in use, when pressure oil is injected into the oil injection port 7 at the front end, the pressure oil is introduced into the flow guide cavity 12 at the front end through the oil storage cavity 11 and the oil guide hole 13, the trapezoidal internal and external threaded pistons 9 move towards the rear end while rotating, so as to drive the front output shaft 2 and the rear output shaft 3 to rotate, when the pressure oil is injected into the oil injection port 7 at the rear end, the trapezoidal internal and external threaded pistons 9 rotate in the opposite direction and move forwards, so as to drive the front output shaft 2 and the rear output shaft 3 to rotate in the opposite direction, and then the swing of the front output shaft 2 and the rear output shaft 3 is realized.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a straddle type installation hydraulic pressure swing hydro-cylinder, includes barrel (1), its characterized in that: the inner periphery of the barrel body (1) is welded with a trapezoidal thread sleeve (10), the inner periphery of the trapezoidal thread sleeve (10) is in threaded connection with a trapezoidal internal and external thread piston (9), the inner periphery of the trapezoidal internal and external thread piston (9) is in threaded connection with a trapezoidal thread shaft (14), two ends of the trapezoidal thread shaft (14) are fixedly connected with a front output shaft (2) and a rear output shaft (3) which extend to the outer portions of the two ends of the barrel body (1) respectively, and a sealing element (8) which is in surface sealing connection with the rear output shaft (3) is sleeved in the rear end of the barrel body (1).

2. The straddle mount hydraulic swing cylinder of claim 1, wherein: the trapezoidal thread shaft (14), the front output shaft (2) and the rear output shaft (3) are of an integrated structure.

3. The straddle mount hydraulic swing cylinder of claim 1, wherein: the front end and the rear end of the lower side of the barrel body (1) are respectively welded with an installation base (6), and threaded holes are formed in the two ends of the installation base (6) in a penetrating mode.

4. The straddle mount hydraulic swing cylinder of claim 2, wherein: the outer sides of the front output shaft (2) and the rear output shaft (3) are respectively welded with a front end cover (5) and a rear end cover (4), and a plurality of connecting holes penetrate through the peripheries of the surfaces of the front end cover (5) and the rear end cover (4) at equal intervals along a ring shape.

5. The straddle mount hydraulic swing cylinder of claim 1, wherein: the length of the trapezoidal thread sleeve (10) is greater than that of the trapezoidal internal and external thread piston (9), and the trapezoidal internal and external thread piston (9) is positioned in the middle of the trapezoidal thread sleeve (10).

6. The straddle mount hydraulic swing cylinder of claim 5, wherein: the utility model discloses a water-saving oil pump, including barrel (1), barrel (1) upside, front and back end are provided with oiling mouth (7) respectively, the upper end of oiling mouth (7) is provided with the oil cap, and is provided with respectively between trapezoidal thread bush (10) outside and barrel (1) inboard with oil storage cavity (11) of two oiling mouths (7) intercommunication, and barrel (1) inner chamber around both ends form water conservancy diversion cavity (12) through trapezoidal internal and external screw thread piston (9) respectively, communicate through leading oilhole (13) between oil storage cavity (11) and the water conservancy diversion cavity (12).