CN2373416Y - Concrete transport pump master hydro-cylinder - Google Patents

Concrete transport pump master hydro-cylinder Download PDF

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Publication number
CN2373416Y
CN2373416Y CN 99209449 CN99209449U CN2373416Y CN 2373416 Y CN2373416 Y CN 2373416Y CN 99209449 CN99209449 CN 99209449 CN 99209449 U CN99209449 U CN 99209449U CN 2373416 Y CN2373416 Y CN 2373416Y
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CN
China
Prior art keywords
cylinder
oil ring
distribution oil
oil
piston
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 99209449
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Chinese (zh)
Inventor
安良平
Original Assignee
安良平
曹光绪
邓文明
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Filing date
Publication date
Application filed by 安良平, 曹光绪, 邓文明 filed Critical 安良平
Priority to CN 99209449 priority Critical patent/CN2373416Y/en
Application granted granted Critical
Publication of CN2373416Y publication Critical patent/CN2373416Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a main oil cylinder of a concrete conveying pump, which is composed of pistons, piston rods, an oil cylinder body, a sealing component, oil ports, a damping device, etc. The utility model is characterized in that the internal part of the oil cylinder body (5) is provided with two groups of piston motion bodies composed of pistons (1), (2) and piston rods (3), (4); oil ports (8), (9) which are on both ends of the oil cylinder body are all arranged on oil distribution ring seats (10), (11); the internal parts of the oil distribution ring seats are provided with oil distribution rings (14), (15) which are coaxial with the oil cylinder body, and the internal holes of the oil distribution rings are the same with the internal diameter of the oil cylinder body. The external circles of the oil distribution rings are provided with a guide groove or a guide hole, and a switching device (16) is connected among the oil distribution rings and the seats of the oil distribution rings. Through making use of the switching device (16), the oil distribution rings (14), (15) are respectively moved to different positions, and the utility model can realize simultaneous movement or respective movement of the front and the back piston rods. The utility model has the advantages of simple structure and reliable sealing.

Description

A kind of concrete pump master cylinder
The utility model relates to a kind of concrete pump master cylinder, belongs to the construction machine field.
Existing concrete transmission pump master cylinder all adopts known normal hydraulic oil cylinder, and its structure all is to adopt compositions such as mono-piston, piston rod, cylinder body, sealing member, two hydraulic fluid ports and shock absorber.This oil cylinder only is applicable to conventional thin material bucket concrete pump.98240320.8 schemes that a kind of dual hopper concrete pump is provided of Chinese patent application.This pump is provided with water tank, concrete cylinder and hopper respectively at the two ends of master cylinder, can be equipped with the different types of assignment valve respectively in the hopper, as S cast or sluice valve-type, realizes that one cover power system, hydraulic efficiency pressure system are two cover pumping mechanism services.This concrete pump requires to have two cover piston and piston rods in the master cylinder, stretches out piston rod from the master cylinder two ends respectively, both can drive secondary piston bar and primary piston bar respectively, can drive forward and backward piston rod simultaneously again.Feasible method is set up two hydraulic fluid ports respectively at the master cylinder front and back ends exactly, sees Fig. 1, and distance is greater than piston thickness between two hydraulic fluid ports.As long as select suitable hydraulic fluid port, just can realize that forward and backward piston rod moves simultaneously or motion respectively like this into and out of oil.Hydraulic fluid port A, C conducting, B, D close, the work of secondary piston bar; Hydraulic fluid port B, D conducting, A, when C closes, the work of primary piston bar; Hydraulic fluid port A, D conducting, B, when C closes, forward and backward piston rod moves simultaneously.
There is following defective in four hydraulic fluid port schemes:
1. though adopt group hole aperture to prevent seal ring undercut phenomenon in the hydraulic fluid port, because each stroke of piston all will be through the group hole in one or two hydraulic fluid port B, the C that occupy the oil cylinder medium position, therefore, the life-span of seal ring has reduced.
2. though the seal ring limit is stung in the minimizing of the aperture group in the hydraulic fluid port, has increased oily resistance of motion, the efficient of hydraulic efficiency pressure system is reduced, increased energy consumption.
3. when selecting two hydraulic fluid ports as working hole from four hydraulic fluid ports, its conducting, the establishment of closing relation realize by exterior valve of oil cylinder and oil pipe, makes complex structure, and cost rises.
The purpose of this utility model is just at above-mentioned deficiency, provide a kind of simple in structure, easy to operate, seal life long, can arbitrarily select the concrete pump master cylinder of forward and backward piston rod movement for use.
The utility model is achieved in that in the oil cylinder of being made up of piston (1) (2), piston rod (3) (4), cylinder body (5), sealing member (6), hydraulic fluid port (8) (9) and shock absorber (12) (13) etc. two groups of piston motion bodies of being made up of piston (1) (2) and piston rod (3) (4) are arranged in the cylinder body (5); The hydraulic fluid port (8) (9) at cylinder body (5) two ends all is located on the distribution oil ring (10) (11); The distribution oil ring (14) (15) coaxial with cylinder body (5) is housed in the distribution oil ring seat (10) (11), and distribution oil ring (14) (15) endoporus is identical with cylinder body (5) internal diameter, has guide groove or guide hole on the outer toroid of this ring; Be connected with shifter (16) between distribution oil ring (14) (15) and its seat.This shifter (16) can be that an end is engaged on the distribution oil ring seat (10) (11), the adjusting bolt of other end apical grafting on distribution oil ring (14) (15); Also can be that an end is engaged on the distribution oil ring seat (14) (15), the plunger cylinder (17) of other end apical grafting on distribution oil ring seat (14) (15).
During use, as long as by two shifters (16), respectively distribution oil ring (14) (15) is moved to different positions, piston rod is with real motion or motion respectively before and after just realizing.When distribution oil ring (14) (15) all is in distribution oil ring seat right-hand member, piston (1) and piston rod (3) motion; When distribution oil ring (14) (15) all is in distribution oil ring seat left end, piston (2) and piston rod (4) motion; When distribution oil ring (14) is in distribution oil ring seat right-hand member and distribution oil ring (15) when being in distribution oil ring seat left end, piston (1) (2) and piston rod (3) (4) move simultaneously.Just realized selection so easily to the oil cylinder piston bar.
The utility model has tangible advantage, no matter because any one piston when motion, all can not pass through hydraulic fluid port, so do not damage seal ring, the seal ring sealing is reliable, and the life-span is long; The oil circuit latus rectum can be bigger, and resistance is little, and is less to the influence of system effectiveness, cuts down the consumption of energy; Easy to operate simple, need only move the distribution oil ring transposition with bolt or small plunger top and both can.
Below in conjunction with accompanying drawing in detail, embodiment of the present utility model is described in detail.
Fig. 1 is the structure principle chart of four hydraulic fluid port scheme master cylinders.Wherein: A, B, C, D-hydraulic fluid port
Fig. 2 is the structure principle chart of the utility model embodiment.Wherein: 1,2-piston; 3,4-piston rod; The 5-cylinder body; The 6-sealing member; 8,9-hydraulic fluid port; 10,11-distribution oil ring seat; 12,13-shock absorber; 14,15-distribution oil ring; The 16-switching bolt; 17-switches plunger case.
Front end at cylinder body (5) is equipped with one group of piston (1), piston rod (3), another group piston (2), piston rod (4) also are equipped with in the rear end of cylinder body (5), respectively there is a distribution oil ring seat (10) (11) at cylinder body (5) two ends, its inside respectively have one with the distribution oil ring (14) (15) of cylinder body with internal diameter, the external diameter of distribution oil ring (14) (15) equates that with the internal diameter of distribution oil ring seat (10) (11) length of distribution oil ring is less than the interior cavity length of distribution oil ring seat.Like this, distribution oil ring can along its axial sway, have guide groove on the outer ring of distribution oil ring (14) (15) in its distribution oil ring seat inner chamber, links up distribution oil ring two ends and hydraulic fluid port, forms three-way valve core.All there is switching bolt (16) in distribution oil ring seat (10) (11) two outsides, when all pushing up distribution oil ring (14) (15) to distribution oil ring seat (10) (11) right-hand member with switching bolt (16), and piston (1), piston rod (3) motion; When distribution oil ring (14) (15) all is in distribution oil ring seat left end by the top, piston (2) and piston rod (4) motion; And be in right-hand member, distribution oil ring (15) when being in left end when distribution oil ring (14), then two pistons (1) (2) and two piston rods (3) (4) move simultaneously.The end position at distribution oil ring (14) (15) two ends is also aimed in two imports of shock absorber (12) (13) respectively, and changes with the change of distribution oil ring position.Realized that easily an oil cylinder can freely select former and later two piston motions.
Adopting and switch plunger rod (17) replacement switching bolt (16), then is another embodiment of the present utility model, and the remainder structure is then identical.

Claims (3)

1. concrete pump master cylinder, form by piston (1) (2), piston rod (3) (4), cylinder body (5), sealing member (6), hydraulic fluid port (8) (9) and shock absorber (12) (13) etc., it is characterized in that: two groups of piston motion bodies of being made up of piston (1) (2) and piston rod (3) (4) are arranged in the cylinder body (5), and the hydraulic fluid port (8) (9) at cylinder body (5) two ends all is located on the distribution oil ring seat (10) (11); The distribution oil ring (14) (15) coaxial with cylinder body (5) is housed in the distribution oil ring seat (10) (11), and distribution oil ring (14) (15) endoporus is identical with cylinder body (5) internal diameter, has guide groove or guide hole on this ring cylindrical; Be connected with shifter (16) between distribution oil ring (14) (15) and its seat (10) (11).
2. master cylinder according to claim 1 is characterized in that: the shifter of distribution oil ring (16) is that an end is engaged on the distribution oil ring seat (10) (11), the adjusting bolt of other end apical grafting on distribution oil ring (14) (15).
3. master cylinder according to claim 1 is characterized in that: the shifter of distribution oil ring (16) is that an end is engaged on the distribution oil ring seat (14) (15), the plunger cylinder (17) of other end apical grafting on distribution oil ring (14) (15).
CN 99209449 1999-04-19 1999-04-19 Concrete transport pump master hydro-cylinder Expired - Fee Related CN2373416Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 99209449 CN2373416Y (en) 1999-04-19 1999-04-19 Concrete transport pump master hydro-cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 99209449 CN2373416Y (en) 1999-04-19 1999-04-19 Concrete transport pump master hydro-cylinder

Publications (1)

Publication Number Publication Date
CN2373416Y true CN2373416Y (en) 2000-04-12

Family

ID=34002954

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 99209449 Expired - Fee Related CN2373416Y (en) 1999-04-19 1999-04-19 Concrete transport pump master hydro-cylinder

Country Status (1)

Country Link
CN (1) CN2373416Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102059563A (en) * 2010-11-26 2011-05-18 大连华根机械有限公司 Oil cylinder driving mechanism with buffer function for clamp
CN103615428A (en) * 2013-12-03 2014-03-05 三一汽车制造有限公司 Hydraulic oil cylinder, pumping mechanism and thick liquid material pump

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102059563A (en) * 2010-11-26 2011-05-18 大连华根机械有限公司 Oil cylinder driving mechanism with buffer function for clamp
CN102059563B (en) * 2010-11-26 2013-09-04 大连华根机械有限公司 Oil cylinder driving mechanism with buffer function for clamp
CN103615428A (en) * 2013-12-03 2014-03-05 三一汽车制造有限公司 Hydraulic oil cylinder, pumping mechanism and thick liquid material pump
CN103615428B (en) * 2013-12-03 2016-02-10 三一汽车制造有限公司 Hydraulic jack and pumping mechanism and thick slurry product pump

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C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee
C19 Lapse of patent right due to non-payment of the annual fee