CN216430109U

CN216430109U - Novel high-stability split type piston oil cylinder device

Info

Publication number: CN216430109U
Application number: CN202122313638.9U
Authority: CN
Inventors: 嵇友文
Original assignee: Suzhou Yongliyuan Machinery Technology Co ltd
Current assignee: Suzhou Yongliyuan Machinery Technology Co ltd
Priority date: 2021-09-25
Filing date: 2021-09-25
Publication date: 2022-05-03
Anticipated expiration: 2031-09-25

Abstract

The utility model discloses a novel high-stability split piston oil cylinder device, which comprises a front end cover, a rear end cover, a cylinder body, a piston rod and a sealing ring, through dividing the piston design into the individual structure, adopt between piston and the piston rod to pass the threaded through-hole on the piston and the installation screw hole on the piston rod through the bolt, carry out equipment connection with piston and piston rod, it is stable to connect, the threaded through-hole setting on the piston is in the sealing washer draw-in groove, the one end of spiral shell and threaded through-hole is the counter sink, the head of bolt can not bulge behind the installation bolt, do not influence the installation of sealing washer, can not influence the normal use of piston, the arc recess that sets up on the protruding and piston of arc that set up on the piston rod, guarantee the positioning accuracy of piston and piston rod installation on the one hand, the protruding joint of on the other hand arc is in the arc recess, the stability of being connected of piston and piston rod has further been strengthened.

Description

Novel high-stability split type piston oil cylinder device

Technical Field

The utility model relates to a hydro-cylinder technical field, in particular to novel split type piston cylinder of high stability device.

Background

The hydraulic cylinder is a linear motion type actuating element with output force in direct proportion to the effective area of the piston and the pressure difference between the two sides of the piston. Its function is to convert hydraulic energy into mechanical energy. The input of the hydraulic cylinder is the flow and pressure of the fluid, and the output is the linear motion speed and force. The piston of the hydraulic cylinder can complete linear reciprocating motion, and the output linear displacement is limited. The hydraulic cylinder is an energy conversion device that converts hydraulic energy into mechanical energy of reciprocating linear motion. The oil cylinder is mainly used for places needing to support heavy objects for a long time, can still support the heavy objects when oil pressure is removed, and is safe and reliable.

The cylinder is generally provided with a piston rod, and the rear end of the piston rod is connected with a piston. During the working process of the oil cylinder, the cylinder body is filled with hydraulic oil, so that the requirement on the whole tightness of the oil cylinder is high, and the situation of gap oil leakage is prevented. In the oil cylinder in the prior art, a piston rod and a piston are easy to loosen, so that the working stability of the oil cylinder is reduced.

The utility model provides a novel split type piston cylinder device of high stability solves above-mentioned technical problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the hydro-cylinder among the prior art, it is not hard up easily between its piston rod and the piston to reduce this technical problem of stability of hydro-cylinder work, provide a novel split type piston cylinder device of high stability and solve above-mentioned technical problem.

For realizing the purpose of the utility model, the utility model adopts the technical scheme that: the piston comprises a front end cover, a rear end cover, a cylinder body, a piston rod and a sealing ring, wherein the front end cover is fixed at the upper end of the cylinder body, the rear end cover is fixed at the lower end of the cylinder body, the bottom of the piston rod penetrates through the front end cover and extends into the cylinder body, the bottom end of the piston rod is connected with the piston, a first circle of arc-shaped bulges and a second circle of arc-shaped bulges are sequentially arranged at the bottom of the piston rod from top to bottom, a first circle of arc-shaped grooves and a second circle of arc-shaped grooves are sequentially arranged on the inner wall of the piston from top to bottom, the piston is divided into a left piston and a right piston, a left first circle of arc-shaped grooves and a left second circle of arc-shaped grooves are sequentially arranged on the inner wall of the left piston from top to bottom, a right first circle of arc-shaped grooves and a right second circle of arc-shaped grooves are sequentially arranged on the inner wall of the right piston from top to bottom, the left first circle of arc-shaped grooves and the right circle of arc-shaped grooves are spliced to form the first circle of arc-shaped grooves, the left second ring arc-shaped groove and the right second ring arc-shaped groove are spliced to form a second ring arc-shaped groove, the first ring arc-shaped protrusion is matched with the first ring arc-shaped groove, the second ring arc-shaped protrusion is matched with the second ring arc-shaped groove, a first sealing ring clamping groove and a second sealing ring clamping groove are sequentially arranged on the outer side of the piston from top to bottom, the first sealing ring clamping groove is divided into a left first sealing ring clamping groove and a right first ring sealing clamping groove, the second sealing ring clamping groove is divided into a left second sealing ring clamping groove and a right second ring sealing clamping groove, a left first sealing ring clamping groove and a left second sealing ring clamping groove are sequentially arranged on the outer wall of the left piston from top to bottom, a right first ring sealing clamping groove and a right second ring sealing clamping groove are sequentially arranged on the outer wall of the right piston from top to bottom, threaded through holes are formed in the left first sealing ring clamping groove, the left second sealing ring clamping groove, the right first ring clamping groove and the right second ring clamping groove, the piston is characterized in that one end of the threaded through hole, which is located on the outer side of the piston, is of a counter bore structure, the piston rod is provided with mounting threaded holes, the threaded through hole and the mounting threaded holes correspond to each other one by one, sealing rings are arranged in the first sealing ring clamping groove and the second sealing ring clamping groove, the depth of the first arc-shaped groove is 0.5-1.0mm greater than the height of the first circle of arc-shaped protrusion, and the depth of the second arc-shaped groove is 0.5-1.0mm greater than the height of the second circle of arc-shaped protrusion.

As an improved scheme of the utility model: the height of the first circle of arc-shaped bulges and the height of the second circle of arc-shaped bulges are 3mm-8 mm.

As an improved scheme of the utility model: the front end of the piston rod extends out of the front end cover.

As an improved scheme of the utility model: the front end cover and the rear end cover are made of No. 35 steel or No. 20 steel, and the cylinder body, the piston and the piston rod are made of No. 45 steel or No. 35 steel.

Compared with the prior art, the utility model has the advantages that: through dividing the piston design into the individual structure, adopt between piston and the piston rod to pass the threaded through-hole on the piston and the installation screw hole on the piston rod through the bolt, carry out equipment connection with piston and piston rod, it is stable to connect, the threaded through-hole setting on the piston is in the sealing washer draw-in groove, the one end of spiral shell and threaded through-hole is the counter sink, the head of bolt can not bulge behind the installation bolt, do not influence the installation of sealing washer, can not influence the normal use of piston, the arc recess that sets up on the protruding and piston of arc that set up on the piston rod, guarantee the positioning accuracy of piston and piston rod installation on the one hand, the protruding joint of on the other hand arc is in the arc recess, the stability of being connected of piston and piston rod has further been strengthened. To sum up, the utility model discloses a series of settings have avoided piston and piston rod not hard up, make piston and piston rod be in stable connection state always, have promoted the stability of hydro-cylinder work, have guaranteed the performance of hydro-cylinder.

Drawings

Fig. 1 is a schematic structural view of a middle piston and a piston rod of a novel high-stability split piston cylinder device of the present invention;

fig. 2 is a schematic view of the overall structure of a piston in the novel high-stability split piston cylinder device of the present invention;

fig. 3 is a schematic structural view of a novel high-stability split piston cylinder device of the present invention;

in the figure: 1. a front end cover; 2. a rear end cap; 3. a cylinder body; 4. a piston; 5. a piston rod; 6. a seal ring; 7. a first circle of arc-shaped protrusions; 8. the second circle of arc-shaped bulges; 9. a first circle of arc-shaped grooves; 10. A second circle of arc-shaped grooves; 11. a left piston; 12. a right piston; 13. a first left arc-shaped groove; 14. A left second circle of arc-shaped grooves; 15. a first right arc-shaped groove; 16. the right second circle of arc-shaped grooves; 17. A first seal ring clamping groove; 18. a second seal ring clamping groove; 19. a left first seal ring slot; 20. the first right ring of sealing clamping grooves; 21. a left second seal ring clamping groove; 22. the right second ring seals the clamping groove; 23. a threaded through hole; 24. and installing a threaded hole.

Detailed Description

In view of the deficiencies in the prior art, the technical solution of the present invention can be provided through long-term research and a large amount of practice. The technical solution 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.

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Fig. 1 is a schematic structural view of a middle piston and a piston rod of a novel high-stability split piston cylinder device of the present invention; fig. 2 is a schematic view of the overall structure of a piston in the novel high-stability split piston cylinder device of the present invention; fig. 3 is a schematic structural view of a novel high-stability split piston cylinder device of the present invention; as shown in fig. 1 to fig. 3, the embodiment of the present invention provides a novel high-stability split piston cylinder device: including front end housing 1, rear end housing 2, cylinder body 3, piston 4, piston rod 5 and sealing washer 6, front end housing 1 fixes the upper end at cylinder body 3, rear end housing 2 fixes the lower extreme at cylinder body 3, front end housing 1 is passed to piston rod 5's bottom to extend to in cylinder body 3, the bottom is connected with piston 4, piston rod 5's bottom from the top down is equipped with first circle arc arch 7 and second circle arc arch 8 in proper order, 4 inner walls from the top down of piston are equipped with first circle arc recess 9 and second circle arc recess 10 in proper order, piston 4 divide into left piston 11 and right piston 12, the inner wall from the top down of left piston 11 is equipped with left first circle arc recess 13 and left second circle arc recess 14 in proper order, the inner wall from the top down of right piston 12 is equipped with right first circle arc recess 15 and right second circle arc recess 16 in proper order, first circle arc recess 13 and right first circle arc recess 15 splice form first circle arc recess 9 The left second ring arc-shaped groove 14 and the right second ring arc-shaped groove 16 are spliced to form a second ring arc-shaped groove 10, the first ring arc-shaped protrusion 7 is matched with the first ring arc-shaped groove 9, the second ring arc-shaped protrusion 8 is matched with the second ring arc-shaped groove 10, a first sealing ring clamping groove 17 and a second sealing ring clamping groove 18 are sequentially arranged on the outer side of the piston 4 from top to bottom, the first sealing ring clamping groove 17 is divided into a left first sealing ring clamping groove 19 and a right first ring sealing clamping groove 20, the second sealing ring clamping groove 18 is divided into a left second sealing ring clamping groove 21 and a right second ring sealing clamping groove 22, a left first sealing ring clamping groove 19 and a left second sealing ring clamping groove 21 are sequentially arranged on the outer wall of the left piston 11 from top to bottom, a right first ring sealing ring clamping groove 20 and a right second ring sealing clamping groove 22 are sequentially arranged on the outer wall of the right piston 12 from top to bottom, the left first sealing ring clamping groove 19, All be equipped with screw thread through-hole 23 in left side second sealing washer draw-in groove 21, the first ring of sealed draw-in groove 20 in the right side and the sealed draw-in groove 22 in the second ring in the right side, the one end that screw thread through-hole 23 is located the piston 4 outside is counter bore structure, and the bolt can not bulge after the equipment, does not influence the installation of sealing washer and the normal use of piston, be equipped with installation screw hole 24 on the piston rod 5, screw thread through-hole 23 and installation screw hole 24 one-to-one mutual correspondence, piston and 4 piston rod 5 pass through the bolt and assemble threaded through-hole 23 and installation screw hole 24 and fix, be equipped with sealing washer 6 in first sealing washer draw-in groove 17 and the second sealing washer draw-in groove 18, the degree of depth of first arc recess 9 is 0.5-1.0mm than the height of first ring arc arch 7, the degree of depth of second arc recess 10 is 0.5-1.0mm than the height of second ring arc arch 8.

The embodiment of the utility model provides a provide a novel split type piston cylinder of high stability device: the height of the first circle of arc-shaped bulges 7 and the height of the second circle of arc-shaped bulges 8 are 3mm-8 mm.

The embodiment of the utility model provides a provide a novel split type piston cylinder of high stability device: the front end of the piston rod 5 extends out of the front end cover 1.

The embodiment of the utility model provides a provide a novel split type piston cylinder of high stability device: the front end cover 1 and the rear end cover 2 are made of No. 35 steel or No. 20 steel, and the cylinder body 3, the piston 4 and the piston rod 5 are made of No. 45 steel or No. 35 steel.

The beneficial effects of the utility model include: through dividing the piston design into the individual structure, adopt between piston and the piston rod to pass the threaded through-hole on the piston and the installation screw hole on the piston rod through the bolt, carry out equipment connection with piston and piston rod, it is stable to connect, the threaded through-hole setting on the piston is in the sealing washer draw-in groove, the one end of spiral shell and threaded through-hole is the counter sink, the head of bolt can not bulge behind the installation bolt, do not influence the installation of sealing washer, can not influence the normal use of piston, the arc recess that sets up on the protruding and piston of arc that set up on the piston rod, guarantee the positioning accuracy of piston and piston rod installation on the one hand, the protruding joint of on the other hand arc is in the arc recess, the stability of being connected of piston and piston rod has further been strengthened. To sum up, the utility model discloses a series of settings have avoided piston and piston rod not hard up, make piston and piston rod be in stable connection state always, have promoted the stability of hydro-cylinder work, have guaranteed the performance of hydro-cylinder.

It should be noted that, although the present specification describes embodiments, each embodiment does not include only a single technical solution, and such description of the specification is only for clarity, and those skilled in the art should take the specification as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art, and the above-mentioned embodiments only express the preferred embodiments of the technical solutions, and the description thereof is more specific and detailed, but should not be construed as limiting the scope of the claims of the technical solutions. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several modifications, improvements and substitutions can be made, which all fall within the protection scope of the present technical solution. The protection scope of this technical solution patent should be subject to the appended claims.

The utility model provides a pair of novel split type piston cylinder device of high stability, it should be understood, above-mentioned embodiment is only for the explanation the utility model discloses a technical conception and characteristics, its aim at let the personage of familiar with this technique can understand the utility model discloses a content is according to with the implementation, can not restrict with this the utility model discloses a protection scope. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a novel split type piston cylinder device of high stability which characterized in that: the piston comprises a front end cover, a rear end cover, a cylinder body, a piston rod and a sealing ring, wherein the front end cover is fixed at the upper end of the cylinder body, the rear end cover is fixed at the lower end of the cylinder body, the bottom of the piston rod penetrates through the front end cover and extends into the cylinder body, the bottom end of the piston rod is connected with the piston, a first circle of arc-shaped bulges and a second circle of arc-shaped bulges are sequentially arranged at the bottom of the piston rod from top to bottom, a first circle of arc-shaped grooves and a second circle of arc-shaped grooves are sequentially arranged on the inner wall of the piston from top to bottom, the piston is divided into a left piston and a right piston, a left first circle of arc-shaped grooves and a left second circle of arc-shaped grooves are sequentially arranged on the inner wall of the left piston from top to bottom, a right first circle of arc-shaped grooves and a right second circle of arc-shaped grooves are sequentially arranged on the inner wall of the right piston from top to bottom, the left first circle of arc-shaped grooves and the right circle of arc-shaped grooves are spliced to form the first circle of arc-shaped grooves, the left second ring arc-shaped groove and the right second ring arc-shaped groove are spliced to form a second ring arc-shaped groove, the first ring arc-shaped protrusion is matched with the first ring arc-shaped groove, the second ring arc-shaped protrusion is matched with the second ring arc-shaped groove, a first sealing ring clamping groove and a second sealing ring clamping groove are sequentially arranged on the outer side of the piston from top to bottom, the first sealing ring clamping groove is divided into a left first sealing ring clamping groove and a right first ring sealing clamping groove, the second sealing ring clamping groove is divided into a left second sealing ring clamping groove and a right second ring sealing clamping groove, a left first sealing ring clamping groove and a left second sealing ring clamping groove are sequentially arranged on the outer wall of the left piston from top to bottom, a right first ring sealing clamping groove and a right second ring sealing clamping groove are sequentially arranged on the outer wall of the right piston from top to bottom, threaded through holes are formed in the left first sealing ring clamping groove, the left second sealing ring clamping groove, the right first ring clamping groove and the right second ring clamping groove, the piston is characterized in that one end of the threaded through hole, which is located on the outer side of the piston, is of a counter bore structure, the piston rod is provided with mounting threaded holes, the threaded through hole and the mounting threaded holes correspond to each other one by one, sealing rings are arranged in the first sealing ring clamping groove and the second sealing ring clamping groove, the depth of the first arc-shaped groove is 0.5-1.0mm greater than the height of the first circle of arc-shaped protrusion, and the depth of the second arc-shaped groove is 0.5-1.0mm greater than the height of the second circle of arc-shaped protrusion.

2. The novel high-stability split type piston oil cylinder device is characterized in that: the height of the first circle of arc-shaped bulges and the height of the second circle of arc-shaped bulges are 3mm-8 mm.

3. The novel high-stability split type piston oil cylinder device is characterized in that: the front end of the piston rod extends out of the front end cover.

4. The novel high-stability split type piston oil cylinder device is characterized in that: the front end cover and the rear end cover are made of No. 35 steel or No. 20 steel, and the cylinder body, the piston and the piston rod are made of No. 45 steel or No. 35 steel.