CN211259184U

CN211259184U - Double rack swing hydro-cylinder

Info

Publication number: CN211259184U
Application number: CN201921515334.7U
Authority: CN
Inventors: 周鸣杰
Original assignee: Wuxi Shibang Machinery Manufacture Co ltd
Current assignee: Wuxi Shibang Machinery Manufacture Co ltd
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2020-08-14
Anticipated expiration: 2029-09-11

Abstract

The utility model relates to a swing hydro-cylinder correlation technique field just discloses a double rack swing hydro-cylinder, including four cylinder bottoms, four cylinder bodies, hexagon socket head cap screw, four flanges, box, two racks and gear, four ports have been seted up to the left and right sides of box, and the left and right sides of box is connected with four cylinder bodies respectively through four flanges, and O type circle is all installed to the port inboard on box left and right sides, and the annular inner wall of O type circle contacts with the annular outer wall of corresponding cylinder body, and four flanges are respectively through hexagon socket head cap screw and box fixed connection, and the equal fixed mounting in end of four cylinder bodies has the cylinder bottom, and two tapered roller bearings are installed to the inner chamber of box. This double rack swing hydro-cylinder, through intercommunication each other between each oilhole that the box openly set up, increased the stability of high-pressure fluid circulation, still reduced the external length of oil pipe, the aesthetic property that increases equipment fixing used has reduced the occupation space of equipment under the workshop environment.

Description

Double rack swing hydro-cylinder

Technical Field

The utility model relates to a swing hydro-cylinder correlation technique field specifically is a double rack swing hydro-cylinder.

Background

The hydraulic cylinder is a close fitting that applies hydraulic pressure in a small space to develop very high torque. The principle of the oscillating cylinder is that the reciprocating motion of the hydraulic cylinder drives the gear through the rack to be converted into forward and reverse oscillating rotation of the gear shaft, and meanwhile, the thrust of the reciprocating cylinder is converted into the output torque of the gear shaft. Because the swing angle of gear shaft is directly proportional with the length of rack, therefore the swing angle of gear shaft can be selected wantonly, and can be greater than 360, and double rack swing hydro-cylinder generally carries hydraulic fluid through many oil pipe intercommunications each other, and oil pipe generally sets up and fixes arranging in the outside of equipment, when swing hydro-cylinder installs the use, many oil pipe's setting, the occupation space of equipment fixing has been increased, especially the condition that the intercommunication conjunction between many oil pipe also easily appears leaking under the condition that receives different high-pressure fluid circulation for a long time, oil pipe external easy is corroded or is damaged simultaneously, the maintenance cycle that the equipment used has been reduced, therefore the inventor has designed a double rack swing hydro-cylinder, it takes place to reduce the inconvenient condition that oil pipe external causes and use.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a double rack swing hydro-cylinder has solved the external problem that causes the corrosion damage to reduce the plant maintenance cycle of swing hydro-cylinder oil pipe.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a double-rack swing oil cylinder comprises four cylinder bottoms, four cylinder bodies, inner hexagon screws, four flanges, a box body, two racks and a gear, wherein four ports are formed in the left side and the right side of the box body, the left side and the right side of the box body are respectively connected with the four cylinder bodies through the four flanges, the inner sides of the ports on the left side and the right side of the box body are respectively provided with an O-shaped ring I, the annular inner wall of the O-shaped ring I is contacted with the annular outer wall of the corresponding cylinder body, the four flanges are respectively and fixedly connected with the box body through the inner hexagon screws, the cylinder bottoms are fixedly arranged at the tail ends of the four cylinder bodies, two conical roller bearings are arranged in the inner cavity of the box body, the gear is fixedly arranged between the inner rings of the two conical roller bearings, a first gland is fixedly arranged on the front side of the box body, a first, o type circle three is installed to the inboard of gland two, the annular inside wall of O type circle three contacts with the outer lane of gear, four two liang of correspondences of cylinder body, be provided with the rack between two corresponding cylinder bodies, two racks all mesh with the gear mutually, the inboard of box is transversely run through to the rack, peg graft respectively at the inner chamber of corresponding cylinder body in both ends about the rack, both ends all are through the most advanced holding screw fixedly connected with piston of interior hexagonal about two racks, both ends all alternate O type circle two about two racks, O type circle two contacts with the annular inside wall of corresponding piston, it connects porose with the combination sealing washer to all fix the cup jointing on four pistons, the lateral wall of hole with the combination sealing washer contacts with the inside wall of corresponding cylinder body.

The left side surface of the box body is provided with an upper left oil hole and a lower left oil hole, the right side surface of the box body is provided with a lower right oil hole and an upper right oil hole, the front side of the bottom of the box body is provided with a left closed oil hole and a right closed oil hole, the front surface of the box body is provided with a first oil guide hole and a second oil guide hole, the first oil guide hole is communicated with the left oil upper hole, the second oil guide hole is communicated with the right oil upper hole, the lower right oil hole is communicated with the left closed oil hole, the left closed oil hole is communicated with the left oil upper hole, the lower left oil hole is communicated with the right.

The four cylinder bottoms are respectively communicated with the corresponding left upper oil hole, the left lower oil hole, the right upper oil hole and the right lower oil hole through oil pipes.

Preferably, the combined sealing ring for the hole, the O-shaped ring I, the O-shaped ring II and the O-shaped ring III can adopt German Merkel, and the applicable temperature is-30-80 ℃.

Preferably, the open ends of the right closed oil hole and the left closed oil hole are blocked by electric welding, the right lower oil hole and the right closed oil hole are staggered, and the left lower oil hole and the left closed oil hole are staggered.

Preferably, the pitch and the modulus of the two racks are equal, and the two racks and the gear can perform synchronous meshing motion.

Preferably, two corresponding pistons are symmetrically arranged about corresponding racks, and the annular outer side wall of each rack is matched with the inner diameter of the inner side wall of the corresponding cylinder port.

Preferably, the centers of the tapered roller bearing, the gear and the housing are on the same longitudinal axis.

Preferably, the oil guide hole and the oil guide hole are not communicated with the inner cavity of the box body, the oil guide hole is positioned on the inner layer of the front face of the box body, and the oil guide hole is positioned on the outer layer of the front face of the box body.

(III) advantageous effects

The utility model provides a double rack swing hydro-cylinder. The method has the following beneficial effects:

(1) this double rack swing hydro-cylinder, through setting up the box, the cylinder body, cylinder bottom and oil pipe mutually support, when equipment uses, oil pipe is with the upper left oilhole on cylinder bottom and the box, oilhole under a left side, oilhole and right upper oilhole interconnect under the right side, the external mode of oil pipe of traditional double rack swing hydro-cylinder has been changed, avoid producing the condition emergence of leaking through many-way articulate between each other between the oil pipe, and communicate each other between each oilhole through the positive setting of box, the stability of high-pressure fluid circulation has been increased, the life of equipment has been prolonged, the maintenance cycle of extension equipment simultaneously, the external length of oil pipe has still been reduced, increase the aesthetic property that the equipment fixing used, the occupation space of equipment under workshop environment has been reduced.

(2) This double rack swing hydro-cylinder, through setting up the upper left oilhole, oilhole under a left side, oilhole under the right side, the oilhole on the upper right side, oil guide hole two and oil guide hole one communicate each other, make hydraulic fluid flow in its cavity that communicates each other, the effectual produced heat of fluid extrusion of box absorbs, and then can guarantee the fluid temperature when equipment uses for a long time, the single continuous live time of extension equipment, shorten the length that oil pipe set up simultaneously, the pipeline that can effectual assurance hydraulic equipment is receiving the fluid security when extrudeing in the twinkling of an eye, the effectual condition of avoiding bursting takes place, avoid the damage that the pipeline leads to equipment is scraped to the foreign object.

Drawings

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

FIG. 2 is a schematic view of the present invention;

FIG. 3 is a schematic side view of the present invention;

fig. 4 is a schematic top view of the present invention;

fig. 5 is a schematic view of the rack structure of the present invention;

fig. 6 is a schematic view of the piston of the present invention;

FIG. 7 is a front view of the box body of the present invention;

FIG. 8 is a schematic side view of the case of the present invention;

FIG. 9 is a schematic view of the back of the case of the present invention;

fig. 10 is a schematic view of the gear structure of the present invention.

In the figure: the oil cylinder comprises a cylinder bottom 1, a cylinder body 2, a hexagon socket head cap screw 3, a flange 4, a box body 5, a rack 6, a first O-shaped ring 7, a second O-shaped ring 8, a combined sealing ring for 9 holes, a set screw with a hexagon socket head cap 10, a piston 11, a first gland 12, a dust ring 13, a tapered roller bearing 14, a second gland 15, a gear 16, a third O-shaped ring 17, an upper left oil hole 18, a lower right oil hole 19, an upper right oil hole 20, a lower left oil hole 21, a first oil guide hole 22, a second oil guide hole 23 and an oil pipe 24.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-10, the utility model provides a technical solution: a double-rack swing oil cylinder comprises four cylinder bottoms 1, four cylinder bodies 2, inner hexagon screws 3, four flanges 4, a box body 5, two racks 6 and a gear 16, wherein four ports are formed in the left side and the right side of the box body 5, the left side and the right side of the box body 5 are respectively connected with the four cylinder bodies 2 through the four flanges 4, O-shaped rings 7 are respectively arranged on the inner sides of the ports on the left side and the right side of the box body 5, the annular inner walls of the O-shaped rings 7 are in contact with the corresponding annular outer walls of the cylinder bodies 2, the four flanges 4 are respectively fixedly connected with the box body 5 through the inner hexagon screws 3, the cylinder bottoms 1 are respectively and fixedly arranged at the tail ends of the four cylinder bodies 2, two tapered roller bearings 14 are arranged in an inner cavity of the box body 5, the gear 16 is fixedly arranged between the bearing inner rings of the two tapered, the tooth pitches and the modulus of the two racks 6 are equal, the two racks 6 and the gear 16 can synchronously engage, the front side of the box body 5 is fixedly provided with a first gland 12, the inner side of the first gland 12 is provided with a dust ring 13, the dust ring 13 can isolate the tapered roller bearing 14 from the outside, the sealing property of the inner cavity of the equipment and the outside is ensured, the annular inner wall of the dust ring 13 is contacted with the outer ring of the gear 16, the rear side of the box body 5 is fixedly provided with a second gland 15, the inner side of the second gland 15 is provided with a third O-shaped ring 17, the annular inner side wall of the third O-shaped ring 17 is contacted with the outer ring of the gear 16, the four cylinder bodies 2 correspond to each other, the racks 6 are arranged between the two corresponding cylinder bodies 2, the two racks 6 are engaged with the gear 16, the racks 6 transversely penetrate through the inner side of the box body 5, the, pistons 11 are fixedly connected to the left end and the right end of each of the two racks 6 through hexagon socket pointed set screws 10, the pistons 11 guarantee the stability of the horizontal movement of the racks 6 in the corresponding cylinders 2, the two corresponding pistons 11 are symmetrically arranged about the corresponding racks 6, the annular outer side wall of each rack 6 is matched with the inner diameter of the inner side wall of the corresponding port of the cylinder 2, O-shaped rings 8 are inserted into the left end and the right end of each of the two racks 6, the O-shaped rings 8 are in contact with the annular inner side wall of the corresponding pistons 11, combined sealing rings 9 for holes are fixedly sleeved on the four pistons 11, the outer side wall of each combined sealing ring 9 for holes is in contact with the inner side wall of the corresponding cylinder 2, the combined sealing rings 9 for holes, the O-shaped ring II 8 and the O-shaped ring III 17 can adopt German Merkel, the applicable temperature is-30-80 ℃, and the sealing performance of the equipment in a high-pressure high-strength use environment is guaranteed.

The left side surface of the box body 5 is provided with a left upper oil hole 18 and a left lower oil hole 21, the right side surface of the box body 5 is provided with a right lower oil hole 19 and a right upper oil hole 20, the front side of the bottom of the box body 5 is provided with a left closed oil hole and a right closed oil hole, the front surface of the box body 5 is provided with a first oil guide hole 22 and a second oil guide hole 23, the first oil guide hole 22 and the second oil guide hole 23 are not communicated with the inner cavity of the box body 5, the first oil guide hole 22 is positioned on the inner layer of the front surface of the box body 5, the second oil guide hole 23 is positioned on the outer layer of the front surface of the box body 5, the first oil guide hole 22 is communicated with the left upper oil hole 18, the second oil guide hole 23 is communicated with the right upper oil hole 20, the right lower oil hole 19 is communicated with the left closed oil hole, the left closed oil hole is communicated with the left upper oil hole 18, the left, hydraulic fluid leakage is avoided, the right lower oil hole 19 and the right closed oil hole are staggered, and the left lower oil hole 21 and the left closed oil hole are staggered.

The four cylinder bottoms 1 are respectively communicated with the corresponding left upper oil hole 18, left lower oil hole 21, right upper oil hole 20 and right lower oil hole 19 through oil pipes 24.

The outer surface of the equipment is sprayed with paint, the sprayed paint is used outdoors in acid and salt fog resistance, the paint is black, and one bottom and two sides are provided.

In conclusion, the oil pipe 24 connects the cylinder bottom 1 and the upper left oil hole 18, the lower left oil hole 21, the lower right oil hole 19 and the upper right oil hole 20 on the box 5, when the device is used, the device is connected with the motor, the output shaft of the motor is connected with the inner ring of the gear 16 through the spline, the first oil guide hole 22 and the second oil guide hole 23 are respectively communicated with the device to be connected, hydraulic fluid is injected into the cylinder body 2, the output shaft of the motor drives the gear 16 to rotate, so that the gear 16 drives the two racks 6 to move transversely, two ends of the movable rack 6 respectively extrude and circulate fluid in the cylinder body 2 through the corresponding pistons 11, the fluid in the upper left oil hole 18 and the lower right oil hole 19 is led out or led in through the first oil guide hole 22, and the fluid in the upper right oil hole 20 and the lower left oil hole 21 is led out or led in through the second oil.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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 double rack swing hydro-cylinder, includes four cylinder bottoms, four cylinder bodies, hexagon socket head cap screw, four flanges, box, two racks and gear, and four ports, its characterized in that have been seted up to the left and right sides of box: the left side and the right side of the box body are respectively connected with four cylinder bodies through four flanges, the inner sides of ports on the left side and the right side of the box body are respectively provided with a first O-shaped ring, the annular inner wall of the first O-shaped ring is contacted with the annular outer wall of the corresponding cylinder body, the four flanges are respectively fixedly connected with the box body through hexagon socket head cap screws, the tail ends of the four cylinder bodies are respectively and fixedly provided with a cylinder bottom, the inner cavity of the box body is provided with two tapered roller bearings, a gear is fixedly arranged between the inner rings of the two tapered roller bearings, the front side of the box body is fixedly provided with a first gland, the inner side of the first gland is provided with a dust ring, the annular inner wall of the dust ring is contacted with the outer ring of the gear, the rear side of the box body is fixedly provided with a second gland, the inner side of, the two racks are meshed with the gear, the racks transversely penetrate through the inner side of the box body, the left end and the right end of each rack are respectively inserted into the inner cavity of the corresponding cylinder body, the left end and the right end of each rack are fixedly connected with a piston through an inner hexagonal tip fastening screw, the left end and the right end of each rack are respectively inserted with an O-shaped ring II, the O-shaped rings II are contacted with the annular inner side wall of the corresponding pistons, the four pistons are fixedly sleeved with combined sealing rings for holes, and the outer side walls of the combined sealing rings for holes are contacted with the inner side wall of the corresponding cylinder body;

the left side surface of the box body is provided with an upper left oil hole and a lower left oil hole, the right side surface of the box body is provided with a lower right oil hole and an upper right oil hole, the front side of the bottom of the box body is provided with a left closed oil hole and a right closed oil hole, the front surface of the box body is provided with a first oil guide hole and a second oil guide hole, the first oil guide hole is communicated with the left upper oil hole, the second oil guide hole is communicated with the right upper oil hole, the lower right oil hole is communicated with the left closed oil hole, the left closed oil hole is communicated with the left upper oil hole, the lower left oil hole is communicated with the right;

2. A double rack swing cylinder according to claim 1, characterized in that: the combined sealing ring for the hole, the O-shaped ring I, the O-shaped ring II and the O-shaped ring III adopt German Merkel, and the applicable temperature is-30-80 ℃.

3. A double rack swing cylinder according to claim 1, characterized in that: the open ends of the right closed oil hole and the left closed oil hole are electrically welded and blocked, the right lower oil hole and the right closed oil hole are staggered, and the left lower oil hole and the left closed oil hole are staggered.

4. A double rack swing cylinder according to claim 1, characterized in that: the pitch and the modulus of the two racks are equal, and the two racks and the gear can synchronously engage and move.

5. A double rack swing cylinder according to claim 1, characterized in that: the two corresponding pistons are symmetrically arranged relative to the corresponding racks, and the annular outer side walls of the racks are matched with the inner diameter of the inner side walls of the ports of the corresponding cylinder bodies.

6. A double rack swing cylinder according to claim 1, characterized in that: the centers of the tapered roller bearing, the gear and the box body are on the same longitudinal axis.

7. A double rack swing cylinder according to claim 1, characterized in that: the first oil guide hole and the second oil guide hole are not communicated with the inner cavity of the box body, the first oil guide hole is located in the inner layer of the front face of the box body, and the second oil guide hole is located in the outer layer of the front face of the box body.