CN2717915Y - Closed rotary drive hydraulic mechanism for crane - Google Patents
Closed rotary drive hydraulic mechanism for crane Download PDFInfo
- Publication number
- CN2717915Y CN2717915Y CN 200420035751 CN200420035751U CN2717915Y CN 2717915 Y CN2717915 Y CN 2717915Y CN 200420035751 CN200420035751 CN 200420035751 CN 200420035751 U CN200420035751 U CN 200420035751U CN 2717915 Y CN2717915 Y CN 2717915Y
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- hydraulic
- crane
- utility
- rotary drive
- model
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Abstract
The utility model discloses a closed rotary drive hydraulic mechanism for crane, comprising an engine (1). The utility model is characterized in that: the engine (1)is connected with a closed hydraulic pump (2) in a driving way; the closed hydraulic pump (2) drives at least two hydraulic motors (3, 4) in parallel; the hydraulic motors (3, 4) drive in series two circumgyration speed reducers (5, 6) respectively. The utility model is a closed rotary drive hydraulic mechanism for crane, which has smaller installation space and convenient space distribution and is applied to the large-tonnage crane, and has simple structure, convenient producing and low cost.
Description
Technical field
The utility model relates to a kind of rotary motion mechanism, particularly relates to a kind of hoisting crane and drives hydraulic gear with the enclosed revolution.
Background technology
The rotary motion mechanism of car hosit is generally open circuit, get off and walk and the shared driving engine of hoisting device of getting on the bus, a hydraulic oil pump comes the driving rotational motor by a change-over valve and rotary buffering valve, drives a rotary reducer, and the revolution action realizes getting on the bus.For the hoisting crane of medium and small tonnage, moment of gyration is little, and hydraulic tubing is uncomplicated, and enough installing spaces are arranged, and the rotary reducer price is lower.And the car hosit more than 100 tons get off the walking with get on the bus hoisting device respectively by two engine drives.The swing type mechanism moment of gyration is big, and installing space is limited, if still adopt original method, a motor driven rotary reducer, the optional narrow range of rotary reducer, supporting scope is little, the rotary reducer price is expensive, and commonality is poor, and is difficult to more hoister in large tonnage expansion.
The utility model content
The hoisting crane that technical problem to be solved in the utility model provides that a kind of installing space is less, spatial destribution is convenient, be applicable to the hoister in large tonnage rotary motion mechanism drives hydraulic gear with the enclosed revolution.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of hoisting crane drives hydraulic gear with the enclosed revolution, comprise driving engine, it is characterized in that: described driving engine and closed type hydraulic pump driving coupling, in parallel at least driving of described closed type hydraulic pump has two HM Hydraulic Motor, and described HM Hydraulic Motor tandem drive respectively has a rotary reducer.
Adopt the hoisting crane enclosed carriage return driver train of technique scheme, owing to adopt the Closed Hydraulic parallel connection of pumps to drive two HM Hydraulic Motor are arranged, described HM Hydraulic Motor tandem drive respectively has a rotary reducer, can adopt small-sized hydraulic motor and small-sized rotary reducer like this, small-sized hydraulic motor and small-sized rotary reducer installing space are less, spatial destribution is convenient, hydraulic tubing is simpler, need not change-over valve and rotary buffering valve, the rotary reducer price is lower, commonality is good, and closed type hydraulic pump can in parallel drive two above HM Hydraulic Motor, is easy to hoister in large tonnage serial expanded more.
In sum, the utility model is that a kind of installing space is less, spatial destribution convenient, is applicable to that hoister in large tonnage and hoisting crane simple in structure, easily manufactured, with low cost drive hydraulic gear with the enclosed carriage return.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is another version scheme drawing of the utility model.
The specific embodiment
Referring to Fig. 1, driving engine 1 and closed type hydraulic pump 2 driving coupling, closed type hydraulic pump 2 in parallel drivings have two HM Hydraulic Motor 3,4, and HM Hydraulic Motor 3,4 tandem drive respectively has a rotary reducer 5,6.
Owing to adopt closed type hydraulic pump 2 in parallel drivings that two HM Hydraulic Motor 3,4 are arranged, HM Hydraulic Motor 3,4 tandem drive respectively has a rotary reducer 5,6, can adopt small-sized hydraulic motor and small-sized rotary reducer like this, small-sized hydraulic motor and small-sized rotary reducer installing space are less, spatial destribution is convenient, and hydraulic tubing is simpler, need not change-over valve and rotary buffering valve, the rotary reducer price is lower, and commonality is good.Referring to Fig. 2, closed type hydraulic pump 2 can in parallel drive three above HM Hydraulic Motor 3,4,7, and HM Hydraulic Motor 3,4,7 tandem drive respectively has a rotary reducer 5,6,8, is easy to hoister in large tonnage serial expanded more.
Claims (1)
- A kind of hoisting crane drives hydraulic gear with the enclosed revolution, comprise driving engine (1), it is characterized in that: described driving engine (1) and closed type hydraulic pump (2) driving coupling, in parallel at least driving of described closed type hydraulic pump (2) has two HM Hydraulic Motor (3,4), and described HM Hydraulic Motor (3,4) tandem drive respectively has a rotary reducer (5,6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420035751 CN2717915Y (en) | 2004-04-30 | 2004-04-30 | Closed rotary drive hydraulic mechanism for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420035751 CN2717915Y (en) | 2004-04-30 | 2004-04-30 | Closed rotary drive hydraulic mechanism for crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2717915Y true CN2717915Y (en) | 2005-08-17 |
Family
ID=34893014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420035751 Expired - Lifetime CN2717915Y (en) | 2004-04-30 | 2004-04-30 | Closed rotary drive hydraulic mechanism for crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2717915Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880007A (en) * | 2010-07-21 | 2010-11-10 | 上海三一科技有限公司 | Double engine-driven closed hydraulic system of main actuating mechanism of caterpillar crane |
| CN101922485A (en) * | 2010-04-13 | 2010-12-22 | 长沙中联重工科技发展股份有限公司 | Hydraulic control system and hydraulic control method |
| CN102923576A (en) * | 2012-10-26 | 2013-02-13 | 贵州航天特种车有限责任公司 | High and low-speed rotary device of double direct current motors |
-
2004
- 2004-04-30 CN CN 200420035751 patent/CN2717915Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922485A (en) * | 2010-04-13 | 2010-12-22 | 长沙中联重工科技发展股份有限公司 | Hydraulic control system and hydraulic control method |
| CN101922485B (en) * | 2010-04-13 | 2014-02-19 | 中联重科股份有限公司 | Hydraulic control system and hydraulic control method |
| CN101880007A (en) * | 2010-07-21 | 2010-11-10 | 上海三一科技有限公司 | Double engine-driven closed hydraulic system of main actuating mechanism of caterpillar crane |
| CN102923576A (en) * | 2012-10-26 | 2013-02-13 | 贵州航天特种车有限责任公司 | High and low-speed rotary device of double direct current motors |
| CN102923576B (en) * | 2012-10-26 | 2015-04-22 | 贵州航天特种车有限责任公司 | High and low-speed rotary device of double direct current motors |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140430 Granted publication date: 20050817 |