CN211852367U

CN211852367U - Hydraulic cylinder buffer valve with stable performance

Info

Publication number: CN211852367U
Application number: CN202020270079.0U
Authority: CN
Inventors: 陈唐春; 曹小菁
Original assignee: Shanghai Qifan Mechanical Equipment Co ltd
Current assignee: Shanghai Qifan Mechanical Equipment Co ltd
Priority date: 2020-03-07
Filing date: 2020-03-07
Publication date: 2020-11-03
Anticipated expiration: 2030-03-07

Abstract

The utility model discloses a pneumatic cylinder cushion valve of stable performance, the power distribution cylinder comprises a cylinder body, cylinder body bottom outer wall has the cylinder base through the bolt fastening, and one side outer wall of cylinder base has seted up the oil filler point, cylinder body top outer wall has cup jointed the cylinder cap, and the both sides outer wall of cylinder cap all is provided with the solenoid valve, the both sides inner wall sliding connection of cylinder body has same piston, and piston top outer wall is provided with the mounting disc, the circular slot has been seted up to mounting disc top outer wall, and the inner wall of circular slot has cup jointed the piston rod, the round mouth has been seted up to cylinder cap top outer wall, the piston rod is pegged graft on the inner wall of round mouth, cylinder cap top. The utility model discloses a set up two buffer gear on the mounting disc, hydraulic oil rises two sealing plugs compression spring simultaneously when the oil pressure in the cylinder body reaches the definite value, and further the help piston cushions, avoids the cylinder body to damage, has solved current pneumatic cylinder and has leaded to the problem that the cylinder body damaged easily when using.

Description

Hydraulic cylinder buffer valve with stable performance

Technical Field

The utility model relates to a pneumatic cylinder technical field especially relates to a pneumatic cylinder cushion valve of stable performance.

Background

The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. When it is used to implement reciprocating motion, it can omit speed-reducing device, and has no transmission gap, and its motion is stable, so that it can be extensively used in various mechanical hydraulic systems. The output force of the hydraulic cylinder is in direct proportion to the effective area of the piston and the pressure difference between the two sides of the effective area; the hydraulic cylinder is basically composed of a cylinder barrel and a cylinder cover, a piston and a piston rod, a sealing device, a buffering device and an exhaust device. The damping device and the exhaust device are determined according to specific application occasions, and other devices are necessary.

The hydraulic cylinder directly influences the movement speed of the piston according to different rates of hydraulic oil entering the cylinder body in working according to different working conditions, and the piston and the cylinder body are collided due to the fact that the speed is too high, so that the service life of the hydraulic cylinder is influenced by damage of the cylinder body in different degrees.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a hydraulic cylinder buffer valve with stable performance.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a pneumatic cylinder cushion valve of stable performance, includes the cylinder body, cylinder body bottom outer wall has the cylinder base through the bolt fastening, and one side outer wall of cylinder base has seted up the oil filler point, cylinder body top outer wall has cup jointed the cylinder cap, and the both sides outer wall of cylinder cap all is provided with the solenoid valve, the both sides inner wall sliding connection of cylinder body has same piston, and piston top outer wall is provided with the mounting disc, the circular slot has been seted up to mounting disc top outer wall, and the inner wall of circular slot has cup jointed the piston rod, the round mouth has been seted up to cylinder cap top outer wall, the piston rod is pegged graft on the inner wall of round mouth, cylinder cap top outer wall is provided with the sealing washer, the installing port of toper structure is all seted up to the both sides of mounting disc top outer wall, and the inner wall of two installing ports all.

Preferably, one end of each oil injection cavity is communicated with the cylinder body, and the two electromagnetic valves are respectively inserted and connected to the other end of each oil injection cavity.

Preferably, the buffering mechanism comprises a sleeve, the sleeve is welded on the inner wall of the mounting opening, the outer wall of the top of the piston is provided with two round openings, and one ends of the two sleeves are respectively inserted into the inner walls of the two round openings.

Preferably, the inner walls of the two sides of the sleeve are connected with the same sealing plug in a sliding mode, and the outer wall of the top of the sealing plug is provided with a supporting column.

Preferably, the outer wall of the top of the supporting column is provided with a buffer disc, one end of the supporting column is sleeved with a spring, and the diameter of the spring is larger than that of the mounting opening.

Preferably, the outer wall of the top of the buffer disc is provided with through holes distributed equidistantly.

Preferably, the electromagnetic valve is connected with a switch through a wire, and the switch is connected with a power line through a wire.

The utility model has the advantages that:

pneumatic cylinder cushion valve that nature performance is stable, through set up two buffer gear on the mounting disc, hydraulic oil rises two sealing plugs simultaneously compression spring when the oil pressure in the cylinder body reaches the definite value, because the existence buffer gear of spring can't rise when the oil pressure in the cylinder body is not enough cushions, set up two notes oil cavities again on the cylinder cap and carry out the oiling to cylinder body upper portion through annotating the oil cavity, further help the piston to cushion, avoid the cylinder body to damage, the problem that current pneumatic cylinder leads to the cylinder body to damage when using easily has been solved.

Drawings

Fig. 1 is a schematic view of a hydraulic cylinder cushion valve with stable performance according to the present invention;

fig. 2 is a schematic sectional structural view of a hydraulic cylinder cushion valve with stable performance according to the present invention;

fig. 3 is the utility model provides a buffer gear structure schematic diagram of pneumatic cylinder cushion valve of stable performance.

In the figure: the device comprises a cylinder body 1, a cylinder seat 2, an oil injection hole 3, a cylinder cover 4, an electromagnetic valve 5, a density ring 6, a piston rod 7, an oil injection cavity 8, a piston 9, a mounting disc 10, a buffer mechanism 11, a sleeve 12, a sealing plug 13, a spring 14, a support column 15 and a buffer disc 16.

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.

Referring to fig. 1-3, a hydraulic cylinder cushion valve with stable performance comprises a cylinder body 1, a cylinder base 2 is fixed on the outer wall of the bottom of the cylinder body 1 through a bolt, an oil injection hole 3 is formed in the outer wall of one side of the cylinder base 2, a cylinder cover 4 is sleeved on the outer wall of the top of the cylinder body 1, electromagnetic valves 5 are arranged on the outer walls of two sides of the cylinder cover 4, the inner wall of two sides of the cylinder body 1 is slidably connected with a same piston 9, a mounting plate 10 is arranged on the outer wall of the top of the piston 9, a circular groove is formed in the outer wall of the top of the mounting plate 10, a piston rod 7 is sleeved on the inner wall of the circular groove, a circular opening is formed in the outer wall of the top of the cylinder cover 4, a sealing ring 6 is arranged on the outer wall of the top of the cylinder cover 4, mounting openings with conical structures are formed in two sides of the, two annotate oil pocket 8's one end and cylinder body 1 and be linked together, two solenoid valve 5 are pegged graft respectively on two other ends of annotating oil pocket 8, buffer gear 11 includes sleeve pipe 12, and sleeve pipe 12 welds on the inner wall of installing port, two round mouths have all been seted up to piston 9 top outer wall, and peg graft respectively on the inner wall of two round mouths to two sleeve pipe 12's one end, sleeve pipe 12's both sides inner wall sliding connection has same sealing plug 13, and sealing plug 13 top outer wall is provided with support column 15, support column 15 top outer wall is provided with buffer tray 16, and spring 14 has been cup jointed to support column 15's one end, spring 14's diameter is greater than the diameter of installing port, the through-hole that the equidistance distributes is all seted up to buffer tray 16 top outer wall, solenoid valve 5.

The working principle is as follows: during the use, annotate oil in the cylinder body 1 through oil filler point 3 earlier, lift piston 9, through set up two buffer gear 11 on mounting disc 10, hydraulic oil rises two sealing plugs 13 and compresses spring 14 simultaneously when the oil pressure in the cylinder body 1 reaches the definite value, because the existence buffer gear 11 of spring 14 can not rise when the oil pressure in the cylinder body 1 is not enough and cushions, set up two notes oil pocket 8 on cylinder cap 4 again and annotate oil through annotating oil pocket 8 to cylinder body 1 upper portion, further help piston 9 cushion, avoid piston 9 fast lead to cylinder body 1 to damage.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The hydraulic cylinder cushion valve with stable performance comprises a cylinder body (1) and is characterized in that a cylinder seat (2) is fixed on the outer wall of the bottom of the cylinder body (1) through bolts, an oil injection hole (3) is formed in the outer wall of one side of the cylinder seat (2), a cylinder cover (4) is sleeved on the outer wall of the top of the cylinder body (1), electromagnetic valves (5) are arranged on the outer walls of two sides of the cylinder cover (4), the inner walls of two sides of the cylinder body (1) are connected with a same piston (9) in a sliding mode, an installation disc (10) is arranged on the outer wall of the top of the piston (9), a circular groove is formed in the outer wall of the top of the installation disc (10), a piston rod (7) is sleeved on the inner wall of the circular groove, a circular opening is formed in the outer wall of the top of the cylinder cover (4), a sealing ring (6) is arranged on the outer wall of the top of the cylinder, and the inner walls of the two mounting ports are provided with buffer mechanisms (11), and oil injection cavities (8) of L-shaped structures are formed in the two sides of the inner wall of the cylinder cover (4).

2. The hydraulic cylinder cushion valve with stable performance as claimed in claim 1, wherein one end of the two oil injection cavities (8) is communicated with the cylinder body (1), and the two electromagnetic valves (5) are respectively inserted at the other ends of the two oil injection cavities (8).

3. The hydraulic cylinder cushion valve with stable performance as claimed in claim 1, wherein the cushion mechanism (11) comprises a sleeve (12), the sleeve (12) is welded on the inner wall of the mounting opening, the outer wall of the top of the piston (9) is provided with two round openings, and one end of each of the two sleeves (12) is respectively inserted into the inner walls of the two round openings.

4. The hydraulic cylinder cushion valve with stable performance is characterized in that the inner walls of the two sides of the sleeve (12) are connected with the same sealing plug (13) in a sliding mode, and the outer wall of the top of the sealing plug (13) is provided with a supporting column (15).

5. The hydraulic cylinder cushion valve with stable performance is characterized in that a cushion disc (16) is arranged on the outer wall of the top of the supporting column (15), a spring (14) is sleeved at one end of the supporting column (15), and the diameter of the spring (14) is larger than that of the mounting opening.

6. The hydraulic cylinder cushion valve with stable performance as claimed in claim 5, characterized in that the outer wall of the top of the cushion disc (16) is provided with through holes distributed equidistantly.

7. The hydraulic cylinder cushion valve with stable performance is characterized in that the electromagnetic valve (5) is connected with a switch through a lead, and the switch is connected with a power line through a lead.