CN202181182U - Self-walking type hydraulic winch - Google Patents
Self-walking type hydraulic winch Download PDFInfo
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- CN202181182U CN202181182U CN2011202484843U CN201120248484U CN202181182U CN 202181182 U CN202181182 U CN 202181182U CN 2011202484843 U CN2011202484843 U CN 2011202484843U CN 201120248484 U CN201120248484 U CN 201120248484U CN 202181182 U CN202181182 U CN 202181182U
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Abstract
The utility model relates to a self-walking type hydraulic winch, which is composed of a chassis, a power device, a hydraulic and control system, a four-corner leveling device and a traction winding drum device. The hydraulic and control system comprises a driving motor valve group which controls rotation of a front-back driving hydraulic motor, a traction motor group which controls rotation of a traction winding drum hydraulic motor, a leveling valve group which drives four leveling hydraulic cylinders, a steering valve group which controls a steering oil cylinder and a one-key switchover valve group composed of an electromagnetic directional valve. The driving motor valve group and the traction motor groups are respectively connected with the one-key switchover valve group. The self-walking type hydraulic winch can automatically move under the driven of self-power, thereby greatly improving construction efficiency and meeting requirements of building extra-high voltage power grids under the condition of complicated terrain. Hydraulic winching is adopted, alternative implementation of two functions including winch driving and winch traction are achieved through the one-key switchover valve group, and safety of construction is improved.
Description
Technical field
The utility model is about a kind of power line construction equipment, relates in particular to a kind of self-propelled hydraulic wireline winch that is used to erect power transmission lines.
Background technology
In recent years, under the promotion of national economy high speed development, Electricity Demand increases fast, and the construction of electrical network has got into a new peak load conditions.Along with the rapid raising of transmission line of electricity voltage class and state-of-art, country to ecological environmental protection, occupational safety and health with improve operating environment, protection laborer life and health rights and interests aspect require increasingly highly, the electrical network operating technique has been proposed new higher requirement with equipping.
Current power transmission track maintenance machine degree is low, operating personnel's labour intensity is high, potential safety hazard is big, the operating technique level with big gap is abroad arranged, some technical difficulties that run in the construction are not properly settled yet.
Strand mill is a kind of under power free situation,, is applicable to tower erection in the power line construction, puts stringing and other hoisting operation to adapt to the small-sized construction machinery and equipment of mountain area, field construction needs as traction, elevator machinery.At present; What generally use in the transmission line construction at home is motor-driven strand mill; Motor-driven strand mill commonly used partly is made up of driving engine, power-transfer clutch, change speed gear box, core grinding etc., during work, realizes the function of drawing, stopping and descending through the friction force that is wrapped in the steel rope of a fixing turn on the core grinding; But; Owing to adopt mechanical speed change; Gear braking and friction clutch, thus in construction, start, impact when stopping with gear shift big, function such as can not realize that stepless change and tractive force are preset; Be difficult to satisfy extra-high voltage grid build in changeable operating mode and the safety requirements of lifting work, especially can not accurately implement overload protection and cause construction accident.
In order to overcome the defective of motor-driven strand mill, a kind of hydraulic pressure strand mill has been proposed.Existing hydraulic pressure strand mill partly is made up of tire assembly, support assembly, dynamic assembly, control assembly, hydraulic system assembly and supporting leg assembly etc.; Frame and tire assembly are formed single shaft pulling type structure; Power, control and hydraulic system assembly are installed on the frame, and supporting leg adopts the mechanical type supporting leg; During work with four mechanical supporting legs of hydraulic pressure strand mill according to the landform leveling after, start the engine, the rotation of driving engine coaxial drive Hydraulic Pump; Hydraulic Pump is from the hydraulic reservoir oil suction; Then high-pressure and hydraulic oil is sent into HM Hydraulic Motor through control cock, the HM Hydraulic Motor rotation is through reductor deceleration back coaxial drive hitch wheel; Realize the rotation of hitch wheel, the forward and backward that realizes reel through hydraulic control lever with stop; But should there be ability voluntarily by existing hydraulic pressure strand mill; Its transition or all need trailer to tow when mobile or the entrucking transportation; Can't satisfy the requirement of (marsh, depression, mire and high-land) mobile transition under the MODEL OVER COMPLEX TOPOGRAPHY; Simultaneously, its mechanical supporting leg that adopts is difficult to leveling under MODEL OVER COMPLEX TOPOGRAPHY, bring inconvenience to construction.
Along with the increase of the construction project of extra high voltage network and to the needs of environmental protection; The transmission line construction landform becomes increasingly complex; Therefore; Need a kind of all-hydraulic transmission, have voluntarily ability, overload protection, o-volt protection, tractive force and accurately control, move flexibly, possess off-road capability, be applicable to working lifting, tractor equipment under the multiple MODEL OVER COMPLEX TOPOGRAPHY, to satisfy pressing for of transmission line construction.
In view of this, the inventor relies on relevant design and manufacturing experience for many years, proposes a kind of self-propelled hydraulic wireline winch, to overcome the defective of prior art.
The utility model content
The purpose of the utility model is to provide a kind of self-propelled hydraulic wireline winch, can under self power driven, move voluntarily, solves the problem that existing hydraulic pressure strand mill can't in place and mechanical supporting leg very difficult leveling on unfairness ground under MODEL OVER COMPLEX TOPOGRAPHY; Can improve operating efficiency and working security greatly, and satisfy the needs that extra-high voltage grid is built under MODEL OVER COMPLEX TOPOGRAPHY.
The purpose of the utility model is achieved in that a kind of self-propelled hydraulic wireline winch, and this self-propelled hydraulic wireline winch is made up of chassis, engine installation, hydraulic pressure and control system, four-corner leveling device and hitch wheel device; The chassis includes crossbeam, front and back drive axle and tire, go before installing respectively on the drive axle of front and back HM Hydraulic Motor with after the HM Hydraulic Motor that goes, also be provided with on the front driving axle and turn to oil cylinder; Engine installation is fixedly mounted on the chassis forward position, engine installation include driving engine and with coaxial bonded assembly controllable capacity pump of driving engine and gear type pump; The four-corner leveling device by four be installed in respectively the chassis all around the hydraulic actuating cylinder of corner location form; The hitch wheel device is fixedly installed on the chassis rearward position, and the hitch wheel device is made up of hitch wheel HM Hydraulic Motor, reductor and hitch wheel; Hydraulic pressure and control system are integrated control box; Be fixedly installed on the chassis; This hydraulic pressure and control system include the convertible valve group that driving motors valve group that the HM Hydraulic Motor that goes before and after the control rotates, traction motor valve group, the leveling valve group that drives four leveling hydraulic actuating cylinders, control that control hitch wheel HM Hydraulic Motor rotates turn to oil cylinder, and a key transfer valve group that is made up of solenoid directional control valve; Said driving motors valve group and traction motor valve group are connected in a key transfer valve group respectively, and this key transfer valve group is communicated in the controllable capacity pump of engine installation through oil circuit.
In a preferred embodiments of the utility model, the controllable capacity pump of said engine installation and gear type pump by the hydraulic reservoir oil suction and be input to hydraulic pressure and control system in.
In a preferred embodiments of the utility model, said leveling valve group is connected with the gear type pump outlet with the convertible valve group.
In a preferred embodiments of the utility model, said leveling valve group is made up of the change-over valve of four parallel connections, each change-over valve control linkage one leveling hydraulic actuating cylinder.
In a preferred embodiments of the utility model, said hydraulic pressure and control system also include the brake valve group, and this brake valve group is connected with the gear type pump outlet.
In a preferred embodiments of the utility model, a said key transfer valve group is made up of first group of change-over valve and second group of change-over valve; Said driving motors valve group and traction motor valve group are connected in first group of change-over valve respectively; First priority valve and second priority valve are connected in the variable delivery side of pump through second a group of change-over valve and a proportion directional valve.
In a preferred embodiments of the utility model; Said traction motor valve group is reached with the series connected balance cock of hitch wheel HM Hydraulic Motor by the by pass valve parallelly connected with the hitch wheel HM Hydraulic Motor, shuttle valve and constitutes; Said hitch wheel HM Hydraulic Motor is provided with reducing valve and drg, and this drg is connected in series a drg electromagnetic valve.
In a preferred embodiments of the utility model, a tractive force control cock is connected in the variable delivery side of pump.
From the above mentioned, the self-propelled hydraulic wireline winch of the utility model can move under self power driven voluntarily, has improved operating efficiency greatly, has satisfied the needs that extra-high voltage grid is built under MODEL OVER COMPLEX TOPOGRAPHY; Simultaneously, this self-propelled hydraulic wireline winch adopts all-hydraulic control, and realizes that by a key transfer valve group winch goes and replacing of two kinds of functions of winch traction implemented, and has ensured the reliability and stability of work progress.
Description of drawings
Following accompanying drawing only is intended to the utility model is done schematic illustration and explanation, does not limit the scope of the utility model.Wherein:
Fig. 1: be the structural representation of the utility model self-propelled hydraulic wireline winch.
Fig. 2: be the structured flowchart of the utility model self-propelled hydraulic wireline winch.
Fig. 3: be the hydraulic efficiency pressure system scheme drawing of the utility model self-propelled hydraulic wireline winch.
Fig. 4: be the hitch wheel apparatus structure scheme drawing of the utility model self-propelled hydraulic wireline winch.
The specific embodiment
Understand for technical characterictic, purpose and effect to the utility model have more clearly, contrast the specific embodiment of description of drawings the utility model at present.
Like Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the utility model proposes a kind of self-propelled hydraulic wireline winch 100, and this self-propelled hydraulic wireline winch 100 is made up of chassis 1, hydraulic pressure and control system 2, engine installation 3, four-corner leveling device 4 and hitch wheel device 5; Like Fig. 1, shown in Figure 2, chassis 1 includes crossbeam, front driving axle 11, rear driving axle 12 and tire 13, go before installing respectively on the front and back drive axle 11,12 HM Hydraulic Motor 14 and after the HM Hydraulic Motor 15 that goes, also be provided with on the front driving axle 11 and turn to oil cylinder 16; Engine installation 2 is fixedly mounted on chassis 1 forward position, and is as shown in Figure 3, engine installation 3 include driving engine 31 and with coaxial bonded assembly controllable capacity pumps 32 of driving engine 31 and gear type pumps 33; The controllable capacity pump 32 of said engine installation 3 and gear type pump 33 by hydraulic reservoir 34 oil suctions and be input to hydraulic pressure and control system 2 in, on fuel tank 34, also be provided with annexes such as oil suction filter, return filter and radiator; Four-corner leveling device 4 by four be installed in respectively chassis 1 all around the hydraulic actuating cylinder 41 of corner location form (like Fig. 2, shown in Figure 3); Hitch wheel device 5 is fixedly installed on chassis 1 rearward position, and is as shown in Figure 4, and hitch wheel device 5 is made up of hitch wheel HM Hydraulic Motor 51, reductor 52 and hitch wheel 53; Hydraulic pressure and control system 2 are integrated control box; Be fixedly installed on the chassis 1; As shown in Figure 3, traction motor valve group 22, the leveling valve group 23 of four leveling hydraulic actuating cylinders 41 of driving, control that the driving motors valve group 21 that the HM Hydraulic Motor 14,15 that goes before and after this hydraulic pressure and control system 2 include and control rotates, control hitch wheel HM Hydraulic Motor 51 rotate turn to convertible valve group 24, the brake valve group 25 of oil cylinder 16 and a key transfer valve group 26 that is made up of solenoid directional control valve; Said driving motors valve group 21 is connected to a key transfer valve group 26 with traction motor valve group 22; By this key transfer valve group 26 with the oil circuit switched conductive in above-mentioned two valve groups; To realize that winch goes and replacing of two kinds of functions of winch traction implemented, this key transfer valve group 26 is communicated in the controllable capacity pump 32 of engine installation 3 through oil circuit.
From the above mentioned, the self-propelled hydraulic wireline winch of the utility model can move under self power driven voluntarily, has improved operating efficiency greatly, has satisfied the needs that extra-high voltage grid is built under MODEL OVER COMPLEX TOPOGRAPHY; Simultaneously, this self-propelled hydraulic wireline winch adopts all-hydraulic control, and realizes that by a key transfer valve group winch goes and replacing of two kinds of functions of winch traction implemented, and has ensured the reliability and stability of work progress.
Further, in this embodiment, said leveling valve group 23, convertible valve group 24 and brake valve group 25 are connected with gear type pump 33 outlets, are come the leveling operation of the turning to of modulated pressure winch, brake and leveling cyclinder 41 by this gear type pump 33 and corresponding oil circuit; Said leveling valve group 23 is made up of the solenoid directional control valve 231 of four parallel connections, each change-over valve 231 control linkages one leveling hydraulic actuating cylinder 41.
As shown in Figure 3, in this embodiment, a said key transfer valve group 26 is to be made up of first group of change-over valve 261 and second group of change-over valve 262; Said driving motors valve group 21 is connected to first group of change-over valve 261 with traction motor valve group 22; One first priority valve 27 and one second priority valve 28 are connected in the outlet of controllable capacity pump 32 through second a group of change-over valve 262 and a proportion directional valve 29.First priority valve 27 is installed in the operator's compartment of winch, is used for when winch goes fuel-displaced direction and the fuel-displaced flow to controllable capacity pump 32 and controls; Second priority valve 28 is installed in the winch control box, is used for when the winch towage fuel-displaced direction and the fuel-displaced flow to controllable capacity pump 32 and controls.Two groups of change-over valves 261,262 in the said key transfer valve group 26 are by a control button synchro control; When control button is pressed; Two groups of change-over valves move simultaneously; Oil circuit conducting simultaneously in the driving motors valve group 21 and first priority valve 27, is driven thus and controls winch and go, at this moment; The oil circuit of the traction motor valve group 22 and second priority valve 28 is closed, all to the operation of the hitch wheel of self-propelled hydraulic wireline winch with invalid; When pressing control button once more; Two groups of change-over valves replace simultaneously; Oil circuit conducting simultaneously in the traction motor valve group 22 and second priority valve 28, is driven and controls winch thus and carry out towage, at this moment; The oil circuit of the driving motors valve group 21 and first priority valve 27 is closed, all to the mobility operation of self-propelled hydraulic wireline winch with invalid.
In this embodiment; Said traction motor valve group 22 is by reaching with hitch wheel HM Hydraulic Motor 51 series connected balance cocks 223 and constitute with hitch wheel HM Hydraulic Motor 51 parallelly connected by pass valve 221, shuttle valves 222; Be parallel with a check valve 224 on the balance cock 223; Also be provided with reducing valve 225 and drg 226 on the said hitch wheel HM Hydraulic Motor 51, this drg 226 serial connections one drg electromagnetic valve 227.The normally closed brake that said drg 226 carries for reductor 52; By pass valve 221 is imported and exported to communicate with hitch wheel HM Hydraulic Motor 51 and is played the function of overload protection; Shuttle valve 222 is connected the assurance hydraulic brake can be changeed, stop and open or brake with drg 226 with hitch wheel; Balance cock 223 makes the rotating speed of hitch wheel HM Hydraulic Motor 51 not receive the influence of load change; Weight free fall when check valve 224 can prevent conduit failure or brake failure avoids construction accident to take place.Owing to adopt the normally closed brake fuel feeding to open, so when driving engine during phenomenon such as flame-out suddenly or hydraulic tubing explosion, the locking of drg decompression, realization o-volt protection function.
Further, as shown in Figure 3, in this embodiment, a tractive force control cock 228 is set also in the system, this tractive force control cock 227 is connected in the outlet of controllable capacity pump 32.Tractive force control cock 228 can the real-time regulated tractive force size, it is preset to cooperate electromagnetic valve 227 to carry out tractive force simultaneously; When tractive force is preset,, declines hitch wheel 53 then before the control handle with second priority valve 28 and be in the lifting operating mode electromagnetic valve 227 energisings; Drg 226 brakings this moment; Just can regulate hitch wheel HM Hydraulic Motor 51 entrance pressures through by pass valve 221, the control handle with second priority valve 28 places meta then, with electromagnetic valve 227 outages; Just can accomplish the tractive force preset function; When pressure surpassed preset pressure in the lifting process, hitch wheel 53 stopped traction automatically, plays overload protective function.
The working process and the principle of the utility model self-propelled hydraulic wireline winch 100 are following:
Driving engine 31 is through coupler and controllable capacity pump 32 and 33 coaxial connections of gear type pump; Driving engine 31 starts the back and drives controllable capacity pump 32 oil suction from hydraulic reservoir 34; Controllable capacity pump 32 is input to a key transfer valve group 26 with high pressure oil, according to working condition requirement, by a key transfer valve group 26 hydraulic oil is input to driving motors valve group 21 through change-over valve; The walking of driving winch; Through being arranged on first priority valve, the 27 control handles operation in the operator's compartment, realize the function that moves forward and backward of self-propelled hydraulic wireline winch, the size that pushes away the angle through first priority valve, 27 control handles is controlled moving velocity.Former and later two driving motors 14,15 are set; Back motor 15 drives two trailing wheels 13 through drive axle 12; Preceding motor 14 drives two front-wheels 13 through drive axle 11, and a change-over valve 211 (as shown in Figure 3) is set between the motor of front and back, when the needs two-wheel drive, change-over valve 211 is cut off the power supply; When the needs four wheel drive, with change-over valve 211 energisings.Two check valves 212 are set in the motor oil oral-lateral that goes, prevent that driving motors is inhaled sky in self-propelled hydraulic wireline winch descending process, assurance self-propelled hydraulic wireline winch is driving safety in the mountain area.
When the self-propelled hydraulic wireline winch needs traction working condition, through a key transfer valve group 26 controllable capacity pump 32 output circuits control is switched to traction motor valve group 22, at this moment all to the ride control of self-propelled hydraulic wireline winch with invalid.By gear type pump 33 and corresponding control oil channel with four leveling hydraulic actuating cylinder 41 leveling of self-propelled hydraulic wireline winch after; The all around is good with earth anchorage; The traction steel wire fag end is fixed by bolts to reel one side; With steel rope winding reel three circles, the steel rope other end is passed coaster and is connected with the object that will draw then.Start the engine 31 lets engine preheating 5 minutes, according to lifting thing weight, with drg 226 brakings, regulates by pass valve 221 preset tractive forces, then drg 226 is opened, and just can carry out normal traction working condition; Through second priority valve, 28 control handle control variable pumps 32 (the controllable capacity pump actuator port is divided into A, two mouths of B) fuel-displaced direction and oil outlet flow; When second priority valve, 28 control handles push away forward; Controllable capacity pump 32 is fuel-displaced from the A mouth, and hydraulic oil gets into from the A mouth of traction motor valve group 22, opens drum brake 226 through shuttle valve 222; Thereby drive drum motor 51 and just passing on the lifting requirement; Second priority valve, 28 control handles forward to push away the angle big more, then controllable capacity pump 32 delivery rates are big more, so reel 53 rotating speeds are fast more; When second priority valve, 28 control handles were in meta, because A, the B mouth of controllable capacity pump 32 do not have hydraulic oil output, drum motor 51 did not have oil and gets into, and shuttle valve 222 cuts out drg 226 brakings, and therefore, hitch wheel 53 stops operating; When second priority valve, 28 control handles were pulled back, controllable capacity pump 32 was from B mouth output fluid, and hydraulic oil gets into the B mouth of traction motor valve group 22, opened drg 226 through shuttle valve 222 and drove hitch wheel 53 counter-rotatings.
When driving engine 31 started, gear type pump 33 from hydraulic reservoir 34 oil suctions, respectively was input to leveling valve group 23, convertible valve group 24 and brake valve group 25 with high pressure oil through the oil suction filter; One accumulator (not shown) is set in convertible valve group 24, guarantees that the self-propelled hydraulic wireline winch turns to flexibility and reliability under the decompression state; At the brake control bit accumulator (not shown) one by one is set, it is safe and reliable to guarantee that the self-propelled hydraulic wireline winch brakes under unpowered situation, and brake valve is used to regulate brake pressure, guarantees that brake is sensitive.As shown in Figure 3, the effect of by pass valve 35 is to need the dominated variable top pressure through system, realizes the operation of security of system failure-free.
The utility model self-propelled hydraulic wireline winch has following beneficial effect:
1. can under self power driven, move voluntarily, improve operating efficiency greatly, satisfy the needs that extra-high voltage grid is built under MODEL OVER COMPLEX TOPOGRAPHY; Simultaneously, this self-propelled hydraulic wireline winch adopts all-hydraulic control, and realizes that by a key transfer valve group winch goes and replacing of two kinds of functions of winch traction implemented, and has ensured the reliability and stability of construction.
2. adopt four leveling hydraulic actuating cylinders, can under MODEL OVER COMPLEX TOPOGRAPHY, hydraulic wireline winch be carried out leveling at an easy rate, offer convenience to construction.
3. for a kind ofly having functions such as four wheel drive, off-road capability, overload protection, o-volt protection, infinite speed variation and tractive force be preset, meeting the self-propelled hydraulic wireline winch of constructing under the multiple MODEL OVER COMPLEX TOPOGRAPHY; Satisfy the construction under tension stringing of domestic various voltage classs at present; Operating efficiency, working security have been improved; Reduce labour intensity, promoted transmission line construction mechanization level.
4. modular design, the reel of compact conformation, reasonable installation are provided with presses rope mechanism, steel rope can be wrapped on the reel uniformly not be damaged with the protection steel rope.
5. can design serial self-propelled hydraulic wireline winch according to different voltage classs, satisfy different voltage classs and requirements of different users.
6. can design electrohydraulic control or crawler self formula hydraulic wireline winch according to user's request.
The above is merely the schematic specific embodiment of the utility model, is not in order to limit the scope of the utility model.Any those skilled in the art, equivalent variations of under the prerequisite of design that does not break away from the utility model and principle, having done and modification all should belong to the scope that the utility model is protected.
Claims (8)
1. self-propelled hydraulic wireline winch, it is characterized in that: this self-propelled hydraulic wireline winch is made up of chassis, engine installation, hydraulic pressure and control system, four-corner leveling device and hitch wheel device; The chassis includes crossbeam, front and back drive axle and tire, go before installing respectively on the drive axle of front and back HM Hydraulic Motor with after the HM Hydraulic Motor that goes, also be provided with on the front driving axle and turn to oil cylinder; Engine installation is fixedly mounted on the chassis forward position, engine installation include driving engine and with coaxial bonded assembly controllable capacity pump of driving engine and gear type pump; The four-corner leveling device by four be installed in respectively the chassis all around the hydraulic actuating cylinder of corner location form; The hitch wheel device is fixedly installed on the chassis rearward position, and the hitch wheel device is made up of hitch wheel HM Hydraulic Motor, reductor and hitch wheel; Hydraulic pressure and control system are integrated control box; Be fixedly installed on the chassis; This hydraulic pressure and control system include the convertible valve group that driving motors valve group that the HM Hydraulic Motor that goes before and after the control rotates, traction motor valve group, the leveling valve group that drives four leveling hydraulic actuating cylinders, control that control hitch wheel HM Hydraulic Motor rotates turn to oil cylinder, and a key transfer valve group that is made up of solenoid directional control valve; Said driving motors valve group and traction motor valve group are connected in a key transfer valve group respectively, and this key transfer valve group is communicated in the controllable capacity pump of engine installation through oil circuit.
2. self-propelled hydraulic wireline winch as claimed in claim 1 is characterized in that: the controllable capacity pump of said engine installation and gear type pump by the hydraulic reservoir oil suction and be input to hydraulic pressure and control system in.
3. self-propelled hydraulic wireline winch as claimed in claim 1 is characterized in that: said leveling valve group is connected with the gear type pump outlet with the convertible valve group.
4. self-propelled hydraulic wireline winch as claimed in claim 3 is characterized in that: said leveling valve group is made up of the change-over valve of four parallel connections, each change-over valve control linkage one leveling hydraulic actuating cylinder.
5. self-propelled hydraulic wireline winch as claimed in claim 1 is characterized in that: said hydraulic pressure and control system also include the brake valve group, and this brake valve group is connected with the gear type pump outlet.
6. self-propelled hydraulic wireline winch as claimed in claim 1 is characterized in that: a said key transfer valve group is made up of first group of change-over valve and second group of change-over valve; Said driving motors valve group and traction motor valve group are connected in first group of change-over valve respectively; First priority valve and second priority valve are connected in the variable delivery side of pump through second a group of change-over valve and a proportion directional valve.
7. self-propelled hydraulic wireline winch as claimed in claim 1; It is characterized in that: said traction motor valve group is reached with the series connected balance cock of hitch wheel HM Hydraulic Motor by the by pass valve parallelly connected with the hitch wheel HM Hydraulic Motor, shuttle valve and constitutes; Said hitch wheel HM Hydraulic Motor is provided with reducing valve and drg, and this drg is connected in series a drg electromagnetic valve.
8. self-propelled hydraulic wireline winch as claimed in claim 1 is characterized in that: a tractive force control cock is connected in the variable delivery side of pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202484843U CN202181182U (en) | 2011-07-14 | 2011-07-14 | Self-walking type hydraulic winch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202484843U CN202181182U (en) | 2011-07-14 | 2011-07-14 | Self-walking type hydraulic winch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202181182U true CN202181182U (en) | 2012-04-04 |
Family
ID=46174228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202484843U Expired - Fee Related CN202181182U (en) | 2011-07-14 | 2011-07-14 | Self-walking type hydraulic winch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202181182U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104909293A (en) * | 2015-05-18 | 2015-09-16 | 天津吉森机电设备工程有限公司 | Movable warping winch |
| CN105384100A (en) * | 2015-12-02 | 2016-03-09 | 青岛港国际股份有限公司 | Hydraulic mooring winch convenient to move and operate |
| CN109372549A (en) * | 2018-11-19 | 2019-02-22 | 中铁工程装备集团有限公司 | A kind of concrete spraying machine chassis and concrete spraying machine |
-
2011
- 2011-07-14 CN CN2011202484843U patent/CN202181182U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104909293A (en) * | 2015-05-18 | 2015-09-16 | 天津吉森机电设备工程有限公司 | Movable warping winch |
| CN105384100A (en) * | 2015-12-02 | 2016-03-09 | 青岛港国际股份有限公司 | Hydraulic mooring winch convenient to move and operate |
| CN109372549A (en) * | 2018-11-19 | 2019-02-22 | 中铁工程装备集团有限公司 | A kind of concrete spraying machine chassis and concrete spraying machine |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120404 Termination date: 20120714 |