CN203306927U

CN203306927U - Lifting valve bank with flow regeneration function of container face crane

Info

Publication number: CN203306927U
Application number: CN2013203256735U
Authority: CN
Inventors: 吴猛; 孙庆宁; 刘敏; 王艳平
Original assignee: Anhui Heli Co Ltd
Current assignee: Anhui Heli Co Ltd
Priority date: 2013-06-07
Filing date: 2013-06-07
Publication date: 2013-11-27
Anticipated expiration: 2023-06-07

Abstract

The utility model relates to a lifting valve bank with a flow regeneration function of a container face crane. The lifting valve bank comprises a lifting cylinder, a safety valve, a first throttling valve, a two-station two-way governor valve, a first one-way valve, a pressure reducing valve, a second one-way valve, a two-station two-way electromagnetic valve, a third throttling valve, a two-station three-way control valve, a two-station three-way electromagnetic valve and a second throttling valve. By adding the two-station three-way control valve, the two-station three-way electromagnetic valve and the second throttling valve, the internal structure of the valve bank is changed, the lifting speed of a boom is improved, and the actually measured speed increases by 42mm/s; the container stacking efficiency of the container face crane is remarkably improved; the oil temperature of a hydraulic system is reduced through the lifting valve bank.

Description

Lifting valve group with container face crane of flow regeneration function

Technical field

The utility model belongs to the container face crane technical field, is specifically related to the hydraulic efficiency pressure system lifting valve group of container face crane.

Background technology

The hydraulic efficiency pressure system of container face crane comprises that two are played the lift valve piece, play the lift valve piece and be arranged on the rodless cavity entrance of jib lift oil tank, the hydraulic operation hoisted in order to control the front handling mobile crane jib, complete hoisting of freight container, the flow rate of hydraulic system of container face crane is larger, and the fluid that main valve is supplied with two lift oil tanks all passes through this two valve groups, and its major defect is that hydraulic efficiency pressure system generation heat is large, and the jib lifting velocity is slower, heap case efficiency is not high.

The utility model content

In order to realize the jib fast lifting, improve heap case efficiency, the utility model provides a kind of container face crane lifting valve group with flow regeneration function.

Lifting valve group with container face crane of flow regeneration function comprises lift oil tank 6, safety valve 2,

first throttle valve

3,2/2-way governor valve 4, the first check valve 5, reducing valve 10, the

second check valve

11,2/2-way electromagnetic valve 12 and the 3rd flow regulating valve 13; The mouth A of the entrance E of safety valve 2 and valve body 1 is connected, another mouthful F of safety valve 2 is connected with mouth H, the control mouth K of two-bit triplet electromagnetic valve 8, the mouth S of 2/2-way governor valve 4 of first throttle valve 3, the second check valve 11, reducing valve 10 respectively, the 3rd mouth G of safety valve 2 is connected with the 3rd flow regulating valve 13, and the mouth T of 2/2-way governor valve 4 is connected with the rodless cavity of lift oil tank 6 by the mouth C on valve body 1; Mouth T also with the first check valve 5 of 2/2-way governor valve 4 is connected, and the mouth M of another mouthful of the first check valve 5 and two-bit triplet control cock 7 is connected, and the mouth P of two-bit triplet control cock 7 is connected with the rod chamber of lift oil tank 6 by the mouth D on valve body 1; The mouth N of two-bit triplet control cock 7 is connected with mouth J, the mouth I of reducing valve 10, the mouth Q of 2/2-way electromagnetic valve 12 of two-bit triplet electromagnetic valve 8 respectively, and directly is being communicated with the mouth B of valve body 1; The spool two ends of two-bit triplet control cock 7 are controlled mouth and with mouth L, second flow regulating valve 9 of two-bit triplet electromagnetic valve 8, are connected respectively; Another mouthful R the respectively with three flow regulating valve 13 of 2/2-way electromagnetic valve 12, first throttle valve 3 are connected.

The utility model is compared with traditional product and is had advantages of following aspect:

1. by setting up two-bit triplet control cock, two-bit triplet electromagnetic valve and the second flow regulating valve, change valve group inner structure, improved the jib lifting velocity, actual measurement speed has increased 42mm/s; Significantly improved the heap case efficiency of container face crane;

2. the utility model decreases the oil temperature of hydraulic efficiency pressure system.

The accompanying drawing explanation

Fig. 1 is the utility model structural representation.

Sequence number in upper figure: valve body 1, safety valve 2,

first throttle valve

3,2/2-way governor valve 4, the first check valve 5, lift oil tank 6, two-bit triplet control cock 7, two-bit triplet electromagnetic valve 8, the second flow regulating valve 9, reducing valve 10, the

second check valve

11,2/2-way electromagnetic valve 12, the 3rd flow regulating valve 13.

The specific embodiment

Below in conjunction with accompanying drawing, by embodiment, the utility model is further described.

Referring to Fig. 1, lifting valve group with container face crane of flow regeneration function comprises lift oil tank 6, safety valve 2,

first throttle valve

3,2/2-way governor valve 4, the first check valve 5, reducing valve 10, the

second check valve

11,2/2-way electromagnetic valve 12 and the 3rd flow regulating valve 13, also comprises two-bit triplet control cock 7, two-bit triplet electromagnetic valve 8 and the second flow regulating valve 9.The mouth A of the entrance E of safety valve 2 and valve body 1 is connected, another mouthful F of safety valve 2 is connected with mouth H, the control mouth K of two-bit triplet electromagnetic valve 8, the mouth S of 2/2-way governor valve 4 of first throttle valve 3, the second check valve 11, reducing valve 10 respectively, the 3rd mouth G of safety valve 2 is connected with the 3rd flow regulating valve 13, and the mouth T of 2/2-way governor valve 4 is connected with the rodless cavity of lift oil tank 6 by the mouth C on valve body 1; Mouth T also with the first check valve 5 of 2/2-way governor valve 4 is connected, and the mouth M of another mouthful of the first check valve 5 and two-bit triplet control cock 7 is connected, and the mouth P of two-bit triplet control cock 7 is connected with the rod chamber of lift oil tank 6 by the mouth D on valve body 1; The mouth N of two-bit triplet control cock 7 is connected with mouth J, the mouth I of reducing valve 10, the mouth Q of 2/2-way electromagnetic valve 12 of two-bit triplet electromagnetic valve 8 respectively, and directly is being communicated with the mouth B of valve body 1; The spool two ends of two-bit triplet control cock 7 are controlled mouth and with mouth L, second flow regulating valve 9 of two-bit triplet electromagnetic valve 8, are connected respectively; Another mouthful R the respectively with three flow regulating valve 13 of 2/2-way electromagnetic valve 12, first throttle valve 3 are connected.

During work, come the mouth A of the high-voltage oil liquid process valve body 1 of autonomous system to enter in valve body 1, after the mouth E of safety valve 2, enter 2/2-way governor valve 4 again, by the mouth C of valve body 1, enter the rodless cavity of lift oil tank 6, to promote the piston rod movement in lift oil tank 6, now navigating mate press button on bar handle make high-speed lifting two-bit triplet electromagnetic valve 8 electric, spool in high-speed lifting two-bit triplet electromagnetic valve 8 will move, at this moment spool moves to the left position of high-speed lifting two-bit triplet electromagnetic valve 8, now high-speed lifting two-bit triplet electromagnetic valve 8 will enter the spool left end of high-speed lifting two-bit triplet control cock 7 by the mouth K of high-speed lifting two-bit triplet electromagnetic valve 8 from the signal fluid that safety valve 2 outlet F get, give hydraulic thrust of spool of high-speed lifting two-bit triplet control cock 7, make the spool of high-speed lifting two-bit triplet control cock 7 be operated in left position, in order to make high-speed lifting two-bit triplet control cock 7 spool stable action, without impacting, high-speed lifting two-bit triplet control cock 7 right side springs and work the signalling oil hydraulic coupling of a balance part from the mouth L of high-speed lifting two-bit triplet electromagnetic valve 8 from the signal pressure oil one of the second flow regulating valve 9, now the fluid in lift oil tank 6 rod chambers will enter valve body 1 by the mouth D of valve body 1, again by a mouth P mouthful M that flows through of high-speed lifting two-bit triplet control cock 7, again by after the first check valve 5, through the direct repairing of mouth C of valve body 1, arrive the rodless cavity of lift oil tank 6, to realize that the flow of supplying with lift oil tank 6 is greater than the flow that real system provides, thereby increased the speed of stretching out of lift oil tank 6 piston rods, the speed that jib hoists also increases thereupon, add to the fluid of lift oil tank 6 rodless cavities because reduced from cycle time system, producing heat will reduce, thereby reduced the rising of oil temperature in hydraulic system.

Claims

1. the lifting valve group that has the container face crane of flow regeneration function, comprise lift oil tank (6), safety valve (2), first throttle valve (3), 2/2-way governor valve (4), the first check valve (5), reducing valve (10), the second check valve (11), 2/2-way electromagnetic valve (12) and the 3rd flow regulating valve (13), it is characterized in that: the mouth A of the entrance E of safety valve (2) and valve body (1) is connected, another mouthful F of safety valve (2) respectively with first throttle valve (3), the second check valve (11), the mouth H of reducing valve (10), the control mouth K of two-bit triplet electromagnetic valve (8), the mouth S of 2/2-way governor valve (4) is connected, the 3rd mouth G of safety valve (2) is connected with the 3rd flow regulating valve (13), the mouth T of 2/2-way governor valve (4) is connected with the rodless cavity of lift oil tank (6) by the mouth C on valve body (1), mouth T also with the first check valve (5) of 2/2-way governor valve (4) is connected, another of the first check valve (5) mouthful is connected with the mouth M of two-bit triplet control cock (7), and the mouth P of two-bit triplet control cock (7) is connected with the rod chamber of lift oil tank (6) by the mouth D on valve body (1), the mouth N of two-bit triplet control cock (7) is connected with mouth I, the mouth Q of 2/2-way electromagnetic valve (12) of mouth J, the reducing valve (10) of two-bit triplet electromagnetic valve (8) respectively, and directly the be communicated with valve body mouthful B of (1), the spool two ends of two-bit triplet control cock (7) are controlled mouth and with mouth L, second flow regulating valve (9) of two-bit triplet electromagnetic valve (8), are connected respectively, another mouthful R the respectively with three flow regulating valve (13) of 2/2-way electromagnetic valve (12), first throttle valve (3) are connected.