CN204873620U - Caterpillar crane does not have rising of explosion -proof valve and rises system - Google Patents
Caterpillar crane does not have rising of explosion -proof valve and rises system Download PDFInfo
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- CN204873620U CN204873620U CN201520588861.6U CN201520588861U CN204873620U CN 204873620 U CN204873620 U CN 204873620U CN 201520588861 U CN201520588861 U CN 201520588861U CN 204873620 U CN204873620 U CN 204873620U
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- variable displacement
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Abstract
The utility model relates to a caterpillar crane does not have rising of explosion -proof valve and rises system, it includes two -way variable displacement pump, slippage pump, hydraulic motor, plays to rise the main part of system and comprises closed loop hydraulic system, lift frame, oil replenishing system, cooling system, control system, closed loop hydraulic system's main part comprises engine, two -way variable displacement pump, hydraulic motor, detecting system, the main part of lift frame comprises truss mechanism, speed reducer, hoisting mechanism, wire rope, assembly pulley, hoist, the two -way variable displacement pump is connected with main pump discharge capacity control valve, slippage pump, hydraulic motor, cushion valve, benefit oil -overflow valve, overflow valve A, and it has hydraulic oil filter, stopper to open automatically controlled switching -over valve to mend oil pump connection, and hydraulic motor is connected with the stopper, and the stopper is opened automatically controlled switching -over valve and is connected with the cushion valve, is mended the oil -overflow valve, the utility model has the advantages of dependable performance, safety, peaceful steady, energy -conserving a, convenient operation.
Description
Technical field
The utility model belongs to hoisting crane technical field, is specifically related to the hoisting system of a kind of crawler crane without explosion relief valve.
Background technology
Hoisting crane is as the elevator machinery in current commercial production, the stability of its hoisting system and safety are particularly important, in hoisting system, the problem larger to safety effects is the anti-fall problem that hoists and the stability problem that hoists under hard service, for solving the problem, therefore need a kind of crawler crane without the hoisting system of explosion relief valve.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of dependable performance is provided, safely, hoist the hoisting system of steady, energy-conservation, easy to operate crawler crane without explosion relief valve.
The purpose of this utility model is achieved in that the hoisting system of a kind of crawler crane without explosion relief valve, it comprises two way variable displacement pump, slippage pump, HM Hydraulic Motor, the main body of described hoisting system is made up of closed-loop hydraulic system, elevator platform, oil-supplementing system, cooling system, control system, and the main body of described closed-loop hydraulic system is made up of driving engine, two way variable displacement pump, HM Hydraulic Motor, checking system; The main body of described elevator platform is made up of truss mechanism, reductor, hoisting mechanism, steel rope, assembly pulley, suspender; Described two way variable displacement pump is connected with discharge of main pump control cock, slippage pump, HM Hydraulic Motor, cushion valve, repairing by pass valve, by pass valve A, described slippage pump is connected with hydraulic oil filter, drg opens electric control reversing valve, described HM Hydraulic Motor is connected with drg, and described drg is opened electric control reversing valve and is connected with cushion valve, repairing by pass valve.
Described HM Hydraulic Motor is 2.
2 described HM Hydraulic Motor are fixed together.
The repairing delivery port of described slippage pump is provided with check valve.
The repairing delivery port of described slippage pump is connected with hydraulic oil filter.
Described discharge of main pump control cock is electric proportional control valve.
Described drg is plate disc brake.
The beneficial effects of the utility model: the utility model adopts two way variable displacement pump, discharge of main pump control cock, cushion valve, repairing by pass valve, by pass valve A, hydraulic oil filter, slippage pump, drg unlatching electric control reversing valve, HM Hydraulic Motor, drg to form the hoisting system of a kind of crawler crane without explosion relief valve, has dependable performance, safely, hoist steady, energy-conservation, easy to operate advantage; The closed-loop hydraulic system of setting of the present utility model is made up of driving engine, two way variable displacement pump, HM Hydraulic Motor, checking system, has that easy to operate, structure is simple, hoist pulsation-free advantage; Drg of the present utility model is plate disc brake, its compact mechanical structure, and weight is little, retro-speed is fast, rapid heat dissipation, and in the situation that load is larger, braking effect is stablized, and improves the performance of hoisting system; The utility model to hoist operating mode in load, because weight is in the process of hoisting, speed is comparatively steady, and not excessive compression shock or vibration, in this process, the size that operator can promote angle by control handle controls the control electric signal of discharge of main pump control cock, and then control discharge of main pump, control the flow of hoisting system, also just control motor rotary speed and load lifting velocity, the two way variable displacement pump that the utility model is arranged, the load meeting hoisting system hoists demand; The utility model is in the temporary transient static operating mode of load, this operating mode will inevitably frequently occur in hoisting process, because the process of lifting can not ensure once success, constantly adjustment just must can reach the requirement of engineering construction, hoisting system does not provide power, weight is still in the air, this is required to drg is reliable, therefore adopts plate disc brake to meet the requirement that hoists of system; The utility model is in load secondary lifting operating mode, load becomes motion from static, its moment produced directly is born by hydraulic efficiency pressure system after drg starts, main pump can not meet the demands at the pressure provided instantaneously and flow, so load will be reversed by motor in tow, is macroscopically just showing as weight downslide out of control; And if the pressure that main pump provides and flow exceed requirement, but drg is not opened in time, hypervelocity and the fluctuation of pressure of HM Hydraulic Motor will be caused in the moment that drg is opened, macroscopically showing as weight vibration, hoisting system instability is subject to, slippage pump, two way variable displacement pump that the utility model is arranged, meet the load secondary lifting demand of hoisting system; The utility model, in overload operation assault phase, opens electric control reversing valve by drg, in the stage of overload operation, supplements oil mass in time and brakes, having the advantage that efficiency is high, structure is simple, effective; Total, the utility model has dependable performance, safely, hoist steady, energy-conservation, easy to operate advantage.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of crawler crane of the utility model without the hoisting system of explosion relief valve.
In figure: 1, two way variable displacement pump 2, discharge of main pump control cock 3, cushion valve 4, repairing by pass valve 5, by pass valve A6, hydraulic oil filter 7, slippage pump 8, drg open electric control reversing valve 9, HM Hydraulic Motor 10, drg.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further.
Embodiment 1
As shown in Figure 1, a kind of crawler crane is without the hoisting system of explosion relief valve, it comprises two way variable displacement pump 1, slippage pump 7, HM Hydraulic Motor 9, the main body of described hoisting system is made up of closed-loop hydraulic system, elevator platform, oil-supplementing system, cooling system, control system, and the main body of described closed-loop hydraulic system is made up of driving engine, two way variable displacement pump 1, HM Hydraulic Motor 9, checking system; The main body of described elevator platform is made up of truss mechanism, reductor, hoisting mechanism, steel rope, assembly pulley, suspender; Described two way variable displacement pump 1 is connected with discharge of main pump control cock 2, slippage pump 7, HM Hydraulic Motor 9, cushion valve 3, repairing by pass valve 4, by pass valve A5, described slippage pump 7 is connected with hydraulic oil filter 6, drg opens electric control reversing valve 8, described HM Hydraulic Motor 9 is connected with drg 10, and described drg is opened electric control reversing valve 8 and is connected with cushion valve 3, repairing by pass valve 4.
When the utility model is implemented, first the main body of hoisting system is made up of closed-loop hydraulic system, elevator platform, oil-supplementing system, cooling system, control system, and the main body of closed-loop hydraulic system is made up of driving engine, two way variable displacement pump, HM Hydraulic Motor, checking system; The main body of elevator platform is made up of truss mechanism, reductor, hoisting mechanism, steel rope, assembly pulley, suspender; Two way variable displacement pump is connected discharge of main pump control cock, slippage pump, HM Hydraulic Motor, cushion valve, repairing by pass valve, by pass valve A, slippage pump is connected hydraulic oil filter, drg opens electric control reversing valve, HM Hydraulic Motor connecting brake, drg is opened electric control reversing valve and connects cushion valve, repairing by pass valve; Can the utility model place in operation after completing above-mentioned installation, two way variable displacement pump is by driven by engine, for hoisting system provides pressure and flow, drive HM Hydraulic Motor, through reductor, elevator and steel rope, final transmission of power is to weight, the controllable capacity pump of closed system drives two HM Hydraulic Motor, and these two HM Hydraulic Motor force to be consolidated by physical construction, and rotating speed is identical, and the hoisting system of complete machine is made up of 4 groups of closed systems, jointly complete hoisting system task; Total, the utility model has dependable performance, safely, hoist steady, energy-conservation, easy to operate advantage.
Embodiment 2
As shown in Figure 1, a kind of crawler crane is without the hoisting system of explosion relief valve, it comprises two way variable displacement pump 1, slippage pump 7, HM Hydraulic Motor 9, the main body of described hoisting system is made up of closed-loop hydraulic system, elevator platform, oil-supplementing system, cooling system, control system, and the main body of described closed-loop hydraulic system is made up of driving engine, two way variable displacement pump 1, HM Hydraulic Motor 9, checking system; The main body of described elevator platform is made up of truss mechanism, reductor, hoisting mechanism, steel rope, assembly pulley, suspender; Described two way variable displacement pump 1 is connected with discharge of main pump control cock 2, slippage pump 7, HM Hydraulic Motor 9, cushion valve 3, repairing by pass valve 4, by pass valve A5, described slippage pump 7 is connected with hydraulic oil filter 6, drg opens electric control reversing valve 8, described HM Hydraulic Motor 9 is connected with drg 10, and described drg is opened electric control reversing valve 8 and is connected with cushion valve 3, repairing by pass valve 4.
Described HM Hydraulic Motor 9 is 2.
2 described HM Hydraulic Motor 9 are fixed together.
The repairing delivery port of described slippage pump 7 is provided with check valve.
The repairing delivery port of described slippage pump 7 is connected with hydraulic oil filter 6.
Described discharge of main pump control cock 2 is electric proportional control valve.
Described drg 10 is plate disc brake.
When the utility model is implemented, first the main body of hoisting system is made up of closed-loop hydraulic system, elevator platform, oil-supplementing system, cooling system, control system, and the main body of closed-loop hydraulic system is made up of driving engine, two way variable displacement pump, HM Hydraulic Motor, checking system; The main body of elevator platform is made up of truss mechanism, reductor, hoisting mechanism, steel rope, assembly pulley, suspender; Two way variable displacement pump is connected discharge of main pump control cock, slippage pump, HM Hydraulic Motor, cushion valve, repairing by pass valve, by pass valve A, slippage pump is connected hydraulic oil filter, drg opens electric control reversing valve, HM Hydraulic Motor connecting brake, drg is opened electric control reversing valve and connects cushion valve, repairing by pass valve; Can the utility model place in operation after completing above-mentioned installation, two way variable displacement pump is by driven by engine, for hoisting system provides pressure and flow, drive HM Hydraulic Motor, through reductor, elevator and steel rope, final transmission of power is to weight, the controllable capacity pump of closed system drives two HM Hydraulic Motor, and these two HM Hydraulic Motor force to be consolidated by physical construction, and rotating speed is identical, and the hoisting system of complete machine is made up of 4 groups of closed systems, jointly complete hoisting system task; HM Hydraulic Motor of the present utility model is 2, and 2 HM Hydraulic Motor are fixed together, and has stable, the connection failure-free advantage that hoists; The repairing delivery port of slippage pump of the present utility model is provided with check valve, and the repairing delivery port of slippage pump is connected with hydraulic oil filter, has the advantage that repairing is reliable, stable, efficiency is high; Discharge of main pump control cock of the present utility model is electric proportional control valve, and drg is plate disc brake, has the advantage that braking is reliable, structure is simple, cost is low; Total, the utility model has dependable performance, safely, hoist steady, energy-conservation, easy to operate advantage.
The foregoing is only preferred embodiment of the present utility model, protection domain of the present utility model is not limited thereto, and anyly all belongs within the utility model protection domain based on the equivalent transformation in technical solutions of the utility model.
Claims (7)
1. a crawler crane is without the hoisting system of explosion relief valve, it comprises two way variable displacement pump, slippage pump, HM Hydraulic Motor, it is characterized in that: the main body of described hoisting system is made up of closed-loop hydraulic system, elevator platform, oil-supplementing system, cooling system, control system, the main body of described closed-loop hydraulic system is made up of driving engine, two way variable displacement pump, HM Hydraulic Motor, checking system; The main body of described elevator platform is made up of truss mechanism, reductor, hoisting mechanism, steel rope, assembly pulley, suspender; Described two way variable displacement pump is connected with discharge of main pump control cock, slippage pump, HM Hydraulic Motor, cushion valve, repairing by pass valve, by pass valve A, described slippage pump is connected with hydraulic oil filter, drg opens electric control reversing valve, described HM Hydraulic Motor is connected with drg, and described drg is opened electric control reversing valve and is connected with cushion valve, repairing by pass valve.
2. a kind of crawler crane according to claim 1 is without the hoisting system of explosion relief valve, it is characterized in that: described HM Hydraulic Motor is 2.
3. a kind of crawler crane according to claim 2 is without the hoisting system of explosion relief valve, it is characterized in that: 2 described HM Hydraulic Motor are fixed together.
4. a kind of crawler crane according to claim 1 is without the hoisting system of explosion relief valve, it is characterized in that: the repairing delivery port of described slippage pump is provided with check valve.
5. a kind of crawler crane according to claim 1 is without the hoisting system of explosion relief valve, it is characterized in that: the repairing delivery port of described slippage pump is connected with hydraulic oil filter.
6. a kind of crawler crane according to claim 1 is without the hoisting system of explosion relief valve, it is characterized in that: described discharge of main pump control cock is electric proportional control valve.
7. a kind of crawler crane according to claim 1 is without the hoisting system of explosion relief valve, it is characterized in that: described drg is plate disc brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520588861.6U CN204873620U (en) | 2015-08-03 | 2015-08-03 | Caterpillar crane does not have rising of explosion -proof valve and rises system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520588861.6U CN204873620U (en) | 2015-08-03 | 2015-08-03 | Caterpillar crane does not have rising of explosion -proof valve and rises system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204873620U true CN204873620U (en) | 2015-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520588861.6U Expired - Fee Related CN204873620U (en) | 2015-08-03 | 2015-08-03 | Caterpillar crane does not have rising of explosion -proof valve and rises system |
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| CN (1) | CN204873620U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105060137A (en) * | 2015-08-03 | 2015-11-18 | 河南省三马起重机械有限公司 | No-explosionproof valve lifting system of crawler crane |
| CN105621302A (en) * | 2016-03-24 | 2016-06-01 | 湖南师范大学 | Anti-stall device and crane |
-
2015
- 2015-08-03 CN CN201520588861.6U patent/CN204873620U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105060137A (en) * | 2015-08-03 | 2015-11-18 | 河南省三马起重机械有限公司 | No-explosionproof valve lifting system of crawler crane |
| CN105621302A (en) * | 2016-03-24 | 2016-06-01 | 湖南师范大学 | Anti-stall device and crane |
| CN105621302B (en) * | 2016-03-24 | 2018-01-02 | 湖南师范大学 | anti-stall device and crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20170803 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |