CN204661263U - A kind of workplatform leveling swing type mechanism of track operation facility - Google Patents
A kind of workplatform leveling swing type mechanism of track operation facility Download PDFInfo
- Publication number
- CN204661263U CN204661263U CN201520119117.1U CN201520119117U CN204661263U CN 204661263 U CN204661263 U CN 204661263U CN 201520119117 U CN201520119117 U CN 201520119117U CN 204661263 U CN204661263 U CN 204661263U
- Authority
- CN
- China
- Prior art keywords
- leveling
- workplatform
- assembly
- hinged
- telescopic boom
- Prior art date
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Forklifts And Lifting Vehicles (AREA)
Abstract
The utility model discloses a kind of workplatform leveling swing type mechanism of track operation facility, comprise telescopic boom assembly, link mechanism assembly, workplatform assembly and detecting device, telescopic boom assembly and workplatform assembly are distributed in the two side ends of link mechanism assembly; Link mechanism assembly is articulated with telescopic boom assembly, can carry out upper and lower luffing in vertical direction around telescopic boom assembly; Workplatform assembly is articulated with link mechanism assembly, can carry out left and right luffing in the horizontal direction around link mechanism assembly; Detecting device is connected with workplatform assembly with telescopic boom assembly respectively, for controlling automatic leveling and horizontal rotation.Compact conformation, easy accessibility, flexible operation, safe and reliable, practical, in leveling and revolution etc., all adopt oil cylinder to add the assembling mechanism of connecting rod mechanism, the operation of vertical luffing, level luffing and automatic leveling can be realized, the more important thing is take up room little, meet installation requirement, load-carrying capacity is strong, stability is good.
Description
Technical field
The utility model relates to a kind of track operation facility, particularly relates to a kind of workplatform leveling swing type mechanism of track operation facility, belongs to engineering mechanical device technical field.
Background technology
Along with the development of railway and urban track traffic, need comprehensively to check Along Railway equipment and railroad bridge etc., safeguard.The track operation facility that operation uses generally are contained on locomotive, because installing space is very limited, therefore have very high requirement to the action radius of job platform.
At present, the turning gear in traditional work platform generally uses rotary motor mode, but its complex structure, cost are high, reliability of service is relatively low, property easy to maintenance is poor; Simultaneously, leveling equipment in job platform generally uses lift arm to coordinate single or two oil cylinders jointly to carry out leveling, but its oil cylinder and lift arm take up room greatly, be not suitable for the installing space that track operation facility are narrow and small, be therefore necessary the leveling turning gear developing a kind of improvement.
Utility model content
Main purpose of the present utility model is, overcomes deficiency of the prior art, provides a kind of workplatform leveling swing type mechanism of track operation facility, is specially adapted to railway class track operation facility.
Technical problem to be solved in the utility model is to provide the workplatform leveling swing type mechanism of compact conformation, easy accessibility, flexible operation, safe and reliable, practical track operation facility, not only can realize the operation of vertical luffing, level luffing and automatic leveling, and take up room little, meet installation requirement, simultaneously load-carrying capacity by force, steadily firm, have the value in industry.
In order to achieve the above object, the technical scheme that the utility model adopts is:
A workplatform leveling swing type mechanism for track operation facility, comprises telescopic boom assembly, link mechanism assembly, workplatform assembly and detecting device, and described telescopic boom assembly and workplatform assembly are distributed in the two side ends of link mechanism assembly.
Wherein, described link mechanism assembly is articulated with telescopic boom assembly, can carry out upper and lower luffing in vertical direction around telescopic boom assembly; Described workplatform assembly is articulated with link mechanism assembly, can carry out left and right luffing in the horizontal direction around link mechanism assembly; Described detecting device is connected with workplatform assembly with telescopic boom assembly respectively, for controlling automatic leveling and horizontal rotation.
The utility model is set to further: described telescopic boom assembly comprises telescopic boom, connector and leveling cyclinder, and the top of described connector is fixedly connected with the termination of telescopic boom, the cylinder bottom termination of bottom and leveling cyclinder is hinged.
The utility model is further set to: described link mechanism assembly comprises vertical tray, leveling linkage I and leveling linkage II.
Wherein, one end of described leveling linkage I and connector is hinged, the other end and the cylinder rod end of leveling cyclinder and one end of leveling linkage II jointly hinged, the other end and the vertical tray of described leveling linkage II are hinged; Described vertical tray is articulated with connector, drive leveling linkage I and leveling linkage II by leveling cyclinder after, can rotate up and down in vertical direction around connector.
The utility model is further set to: described workplatform assembly comprises workplatform, angling cylinder, pivoted link I, pivoted link II and rig bracket, and described workplatform is installed in rig bracket.
Wherein, the cylinder bottom termination of described angling cylinder and rig bracket are hinged, one end of the cylinder rod end of described angling cylinder and one end of pivoted link I and pivoted link II is jointly hinged, the other end and the vertical tray of described pivoted link I are hinged, and the other end and the rig bracket of described pivoted link II are hinged; Described rig bracket is articulated with vertical tray, drive pivoted link I and pivoted link II by angling cylinder after, left and right can be carried out in the horizontal direction around vertical tray and turn round.
The utility model is further set to: described detecting device comprises controller, the obliquity sensor be connected with controller respectively, leveling valve and multiway valve; Described controller carries out the control operation of automatic leveling and horizontal rotation respectively by control leveling valve and multiway valve; Described obliquity sensor is arranged in rig bracket, for the level inclination of testing platform; Described leveling valve is connected with leveling cyclinder, carries out expanding-contracting action for ordering about leveling cyclinder according to the control signal of controller; Described multiway valve is connected with angling cylinder, carries out expanding-contracting action for ordering about angling cylinder according to the control signal of controller.
The utility model is further set to: described connector comprises connecting panel, connects shrouding and two panels bending side plate.
Wherein, described connecting panel be connected shrouding and be vertically connected l-shaped plate, described connecting panel is fixedly connected with the arm end of telescopic boom, and described connection shrouding and telescopic boom axis parallels and is positioned at immediately below telescopic boom; Described two panels bending side plate keep being parallel to each other, being vertically installed in L-type plate two side ends limit, form the hollow L type plate body of one end face closure with L-type plate; Described leveling cyclinder is distributed between two panels bending side plate, and the cylinder bottom termination of leveling cyclinder and two panels are bent side plate and be hinged by the first bearing pin.
The utility model is further set to: described vertical tray comprises two panels bracket side plate, bracket shrouding, pin sleeve and the first anchor shaft, and described two panels bracket side plate is vertical with bracket shrouding is connected to hollow box body; One end of described hollow box body to be distributed between two panels bending side plate and bend side plate with two panels and is hinged, and the other end is provided with the pin sleeve keeping vertical direction to distribute; Described first anchor shaft be arranged on hollow box body bottom, with pin sleeve axially parallel, also keep vertical direction to distribute.
The utility model is further set to: described leveling linkage I and leveling linkage II are two pieces, is symmetrically distributed in the both sides of two panels bending side plate and two panels bracket side plate respectively; By the second bearing pin and two panels, one end of described leveling linkage I bends that side plate is hinged, the other end by the 3rd bearing pin and the cylinder rod end of leveling cyclinder and one end of leveling linkage II jointly hinged, the other end of described leveling linkage II is hinged by the 4th bearing pin and two panels bracket side plate; Described second bearing pin and the 4th bearing pin bend the board plane of side plate and two panels bracket side plate respectively perpendicular to two panels.
The utility model is further set to: described rig bracket is thin wall hollow casing, and the horizontal top surface of described thin wall hollow casing is installed with workplatform, inner chamber horizontal positioned has angling cylinder, be provided with the second anchor shaft near the bottom surface of pivoted link II, load pin sleeve near the side of pin sleeve by normal pin axle sleeve is articulated with vertical tray; Described pivoted link I and pivoted link II are respectively two pieces first bent plate and two pieces second bent plate, are all symmetrically distributed in the both sides of the cylinder bar of angling cylinder; One end of described pivoted link I by the 5th bearing pin and the cylinder rod end of angling cylinder and one end of pivoted link II jointly hinged, the other end and first anchor shaft of described pivoted link I are hinged, and the other end and second anchor shaft of described pivoted link II are hinged.
The utility model is further set to: be all vertically installed with gusset between described two pieces first bent plate and two pieces second bent plate.
Compared with prior art, the beneficial effect that the utility model has is:
By telescopic boom assembly, link mechanism assembly, the setting of workplatform assembly and detecting device, link mechanism assembly be articulated with telescopic boom assembly and upper and lower luffing can be carried out in vertical direction around telescopic boom assembly, workplatform assembly be articulated with link mechanism assembly and left and right luffing can be carried out in the horizontal direction around link mechanism assembly, and control vertical luffing by detecting device, level luffing and automatic leveling, in leveling and revolution etc., all adopt oil cylinder to add the assembling mechanism of connecting rod mechanism, what discard tradition drives pivoting support with rotary reducer and drives the pivotal method of workplatform and the method by the vertical luffing of lift arm, whole mechanism installing space is significantly reduced, not only compact conformation, flexible operation, safe and reliable, and it is little to take up room, load-carrying capacity is strong, stability is good, significantly can strengthen alerting ability and the comformability of track operation facility workplatform, thus meet working environment install and use requirement.
Foregoing is only the general introduction of technical solutions of the utility model, and in order to clearer understanding technological means of the present utility model, below in conjunction with accompanying drawing, the utility model will be further described.
Accompanying drawing explanation
Fig. 1 of the present utility modelly faces structural representation;
Fig. 2 of the present utility modelly looks up structural representation;
Fig. 3 be in the utility model telescopic boom assembly face structural representation;
Fig. 4 be in the utility model link mechanism assembly face structural representation;
Fig. 5 be in the utility model workplatform assembly face structural representation;
Fig. 6 be in the utility model detecting device face structural representation;
Fig. 7 is the front elevational schematic of vertical luffing working process of the present utility model;
Fig. 8 is the schematic top plan view of level luffing working process of the present utility model.
Detailed description of the invention
Below in conjunction with Figure of description, the utility model is further described.
As shown in Figures 1 to 8, a kind of workplatform leveling swing type mechanism of track operation facility, comprise telescopic boom assembly 1, link mechanism assembly 2, workplatform assembly 3 and detecting device 4, described telescopic boom assembly 1 and workplatform assembly 3 are distributed in the two side ends of link mechanism assembly 1; Described link mechanism assembly 2 is articulated with telescopic boom assembly 1, can carry out upper and lower luffing in vertical direction around telescopic boom assembly 1; Described workplatform assembly 3 is articulated with link mechanism assembly 2, can carry out left and right luffing in the horizontal direction around link mechanism assembly 2; Described detecting device 4 is connected with workplatform assembly 3 with telescopic boom assembly 1 respectively, for controlling automatic leveling and horizontal rotation.
As shown in Figure 1, Figure 2 and Figure 3, described telescopic boom assembly 1 comprises telescopic boom 11, connector 12 and leveling cyclinder 13, and the top of described connector 12 is fixedly connected with the termination of telescopic boom 11, the bottom of connector 12 and the cylinder bottom termination of leveling cyclinder 13 are hinged.
Described connector 12 comprises connecting panel 121, connects shrouding 122 and two panels bending side plate 123; Described connecting panel 121 be connected shrouding 122 and be vertically connected l-shaped plate, described connecting panel 121 is fixedly connected with the arm end of telescopic boom 11, and described connection shrouding 122 parallels with telescopic boom 11 axis and is positioned at immediately below telescopic boom 11; Described two panels bending side plate 123 keep being parallel to each other, being vertically installed in L-type plate two side ends limit, form the hollow L type plate body of one end face closure with L-type plate; Described leveling cyclinder 13 is distributed between two panels bending side plate 123, and the cylinder bottom termination of leveling cyclinder 13 and two panels are bent side plate 123 and be hinged by the first bearing pin 10.
As shown in Figure 1, Figure 2 and Figure 4, described link mechanism assembly 2 comprises vertical tray 21, leveling linkage I 22 and leveling linkage II 23; Described vertical tray 21 comprises two panels bracket side plate 211, bracket shrouding 212, pin sleeve 213 and the first anchor shaft 214, described two panels bracket side plate 211 is vertical with bracket shrouding 212 is connected to hollow box body, one end of described hollow box body to be distributed between two panels bending side plate 123 and bend side plate 123 with two panels and is hinged, and the other end is provided with the pin sleeve 213 keeping vertical direction to distribute; Described first anchor shaft 214 be arranged on hollow box body bottom, with pin sleeve 213 axially parallel, also keep vertical direction to distribute.Described vertical tray 21 by be articulated with two panels bending side plate 123 in connector and after driving leveling linkage I 22 and leveling linkage II 23 by leveling cyclinder 13, can rotate up and down in vertical direction around connector 12.
Described leveling linkage I 22 and leveling linkage II 23 are two pieces, are symmetrically distributed in the both sides of two panels bending side plate 123 and two panels bracket side plate 211 respectively; By the second bearing pin 20 and two panels, one end of described leveling linkage I 22 bend that side plate 123 is hinged, the other end by the 3rd bearing pin 30 and the cylinder rod end of leveling cyclinder 13 and one end of leveling linkage II 23 jointly hinged, the other end of described leveling linkage II 23 is hinged by the 4th bearing pin 40 and two panels bracket side plate 211; Described second bearing pin 30 and the 4th bearing pin 40 bend the board plane of side plate 123 and two panels bracket side plate 211 respectively perpendicular to two panels.
As shown in Figure 1, Figure 2 with shown in Fig. 5, described workplatform assembly 3 comprises workplatform 31, angling cylinder 32, pivoted link I 33, pivoted link II 34 and rig bracket 35.
Described rig bracket 35 is thin wall hollow casing, and the horizontal top surface of described thin wall hollow casing is installed with workplatform 31, inner chamber horizontal positioned has angling cylinder 32, the bottom surface of close pivoted link II 34 is provided with the second anchor shaft 351, the side of close pin sleeve 213 overlaps loading pin sleeve 213 by vertical bearing pin 36 and is articulated with vertical tray 21; Described rig bracket 35 is articulated with vertical tray 21, driven pivoted link I 33 and pivoted link II 34 by angling cylinder 32 after, left and right can be carried out in the horizontal direction around vertical tray 21 and turn round.
Described pivoted link I 33 and pivoted link II 34 are respectively two pieces first bent plate and two pieces second bent plate, are all symmetrically distributed in the both sides of the cylinder bar of angling cylinder 32; One end of described pivoted link I 33 by the 5th bearing pin 50 and the cylinder rod end of angling cylinder 32 and one end of pivoted link II 34 jointly hinged, the other end and first anchor shaft 214 of described pivoted link I 33 are hinged, and the other end and second anchor shaft 351 of described pivoted link II 34 are hinged.All be vertically installed with gusset 37 between described two pieces first bent plate and two pieces second bent plate, play booster action.
As shown in figures 1 to 6, described detecting device 4 comprises controller 41, the obliquity sensor 42 be connected with controller respectively, leveling valve 43 and multiway valve 44; Described controller 41 carries out the control operation of automatic leveling and horizontal rotation respectively by control leveling valve 43 and multiway valve 44; Described obliquity sensor 42 is arranged in rig bracket 35, for the level inclination of testing platform 31; Described leveling valve 43 is connected with leveling cyclinder 13, carries out expanding-contracting action for ordering about leveling cyclinder 13 according to the control signal of controller 41; Described multiway valve 44 is connected with angling cylinder 32, carries out expanding-contracting action for ordering about angling cylinder 32 according to the control signal of controller 41.
As shown in Figure 7 and Figure 8, when the workplatform leveling swing type mechanism of track operation facility needs to carry out upper and lower luffing in vertical direction, telescopic boom 11 luffing is when by workplatform 31, from Fig. 7, solid line position is to dotted line position, workplatform 31 angle changes, obliquity sensor 42 is responded to the change of angle immediately and is produced corresponding signal and send to controller 41, controller 41 controls the flowing that leveling valve 43 orders about hydraulic oil makes leveling cyclinder 32 regulate, by or stretch or contracting action, until leveling to job platform 31 level, thus reach self-levelling object in the upper and lower amplitude changing process of vertical direction, when workplatform 31 needs to carry out left and right luffing in the horizontal direction, then manipulation controller 41 produces signal and passes to multiway valve 44, the flowing of multiway valve 44 hydraulic control oil is ordered about angling cylinder 32 and is shunk or stretch out, by the mating reaction with two groups of pivoted links I 33 and pivoted link II 34, the horizontal rotation of the platform 31 that fulfils assignment.
Innovative point of the present utility model is, what discard tradition drives pivoting support with rotary reducer and drives the pivotal method of workplatform and the method by the vertical luffing of lift arm, in leveling and revolution etc., all adopt oil cylinder to add the assembling mechanism of connecting rod mechanism, thus whole mechanism installing space is significantly reduced, not only compact conformation, flexible operation, safe and reliable, and take up room little, load-carrying capacity is strong, stability is good, significantly strengthen alerting ability and the comformability of track operation facility workplatform, thus meet working environment install and use requirement.
More than show and describe groundwork of the present utility model, principal character and advantage.The technical personnel of the industry should be understood; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (10)
1. the workplatform leveling swing type mechanism of track operation facility, it is characterized in that: comprise telescopic boom assembly, link mechanism assembly, workplatform assembly and detecting device, described telescopic boom assembly and workplatform assembly are distributed in the two side ends of link mechanism assembly;
Described link mechanism assembly is articulated with telescopic boom assembly, can carry out upper and lower luffing in vertical direction around telescopic boom assembly;
Described workplatform assembly is articulated with link mechanism assembly, can carry out left and right luffing in the horizontal direction around link mechanism assembly;
Described detecting device is connected with workplatform assembly with telescopic boom assembly respectively, for controlling automatic leveling and horizontal rotation.
2. the workplatform leveling swing type mechanism of a kind of track operation facility according to claim 1, it is characterized in that: described telescopic boom assembly comprises telescopic boom, connector and leveling cyclinder, the top of described connector is fixedly connected with the termination of telescopic boom, the cylinder bottom termination of bottom and leveling cyclinder is hinged.
3. the workplatform leveling swing type mechanism of a kind of track operation facility according to claim 2, is characterized in that: described link mechanism assembly comprises vertical tray, leveling linkage I and leveling linkage II;
One end of described leveling linkage I and connector is hinged, the other end and the cylinder rod end of leveling cyclinder and one end of leveling linkage II jointly hinged, the other end and the vertical tray of described leveling linkage II are hinged;
Described vertical tray is articulated with connector, drive leveling linkage I and leveling linkage II by leveling cyclinder after, can rotate up and down in vertical direction around connector.
4. the workplatform leveling swing type mechanism of a kind of track operation facility according to claim 3, it is characterized in that: described workplatform assembly comprises workplatform, angling cylinder, pivoted link I, pivoted link II and rig bracket, and described workplatform is installed in rig bracket;
The cylinder bottom termination of described angling cylinder and rig bracket are hinged, one end of the cylinder rod end of described angling cylinder and one end of pivoted link I and pivoted link II is jointly hinged, the other end and the vertical tray of described pivoted link I are hinged, and the other end and the rig bracket of described pivoted link II are hinged;
Described rig bracket is articulated with vertical tray, drive pivoted link I and pivoted link II by angling cylinder after, left and right can be carried out in the horizontal direction around vertical tray and turn round.
5. the workplatform leveling swing type mechanism of a kind of track operation facility according to claim 4, is characterized in that: described detecting device comprises controller, the obliquity sensor be connected with controller respectively, leveling valve and multiway valve; Described controller carries out the control operation of automatic leveling and horizontal rotation respectively by control leveling valve and multiway valve;
Described obliquity sensor is arranged in rig bracket, for the level inclination of testing platform;
Described leveling valve is connected with leveling cyclinder, carries out expanding-contracting action for ordering about leveling cyclinder according to the control signal of controller;
Described multiway valve is connected with angling cylinder, carries out expanding-contracting action for ordering about angling cylinder according to the control signal of controller.
6. the workplatform leveling swing type mechanism of a kind of track operation facility according to claim 4, is characterized in that: described connector comprises connecting panel, connects shrouding and two panels bending side plate;
Described connecting panel be connected shrouding and be vertically connected l-shaped plate, described connecting panel is fixedly connected with the arm end of telescopic boom, and described connection shrouding and telescopic boom axis parallels and is positioned at immediately below telescopic boom;
Described two panels bending side plate keep being parallel to each other, being vertically installed in L-type plate two side ends limit, form the hollow L type plate body of one end face closure with L-type plate;
Described leveling cyclinder is distributed between two panels bending side plate, and the cylinder bottom termination of leveling cyclinder and two panels are bent side plate and be hinged by the first bearing pin.
7. the workplatform leveling swing type mechanism of a kind of track operation facility according to claim 6, it is characterized in that: described vertical tray comprises two panels bracket side plate, bracket shrouding, pin sleeve and the first anchor shaft, described two panels bracket side plate is vertical with bracket shrouding is connected to hollow box body;
One end of described hollow box body to be distributed between two panels bending side plate and bend side plate with two panels and is hinged, and the other end is provided with the pin sleeve keeping vertical direction to distribute;
Described first anchor shaft be arranged on hollow box body bottom, with pin sleeve axially parallel, also keep vertical direction to distribute.
8. the workplatform leveling swing type mechanism of a kind of track operation facility according to claim 7, is characterized in that: described leveling linkage I and leveling linkage II are two pieces, is symmetrically distributed in the both sides of two panels bending side plate and two panels bracket side plate respectively;
By the second bearing pin and two panels, one end of described leveling linkage I bends that side plate is hinged, the other end by the 3rd bearing pin and the cylinder rod end of leveling cyclinder and one end of leveling linkage II jointly hinged, the other end of described leveling linkage II is hinged by the 4th bearing pin and two panels bracket side plate; Described second bearing pin and the 4th bearing pin bend the board plane of side plate and two panels bracket side plate respectively perpendicular to two panels.
9. the workplatform leveling swing type mechanism of a kind of track operation facility according to claim 7, it is characterized in that: described rig bracket is thin wall hollow casing, the horizontal top surface of described thin wall hollow casing is installed with workplatform, inner chamber horizontal positioned has angling cylinder, be provided with the second anchor shaft near the bottom surface of pivoted link II, be articulated with vertical tray near the side of pin sleeve by normal pin axle sleeve loading pin sleeve;
Described pivoted link I and pivoted link II are respectively two pieces first bent plate and two pieces second bent plate, are all symmetrically distributed in the both sides of the cylinder bar of angling cylinder; One end of described pivoted link I by the 5th bearing pin and the cylinder rod end of angling cylinder and one end of pivoted link II jointly hinged, the other end first anchor shaft of described pivoted link I is hinged, and the other end and second anchor shaft of described pivoted link II are hinged.
10. the workplatform leveling swing type mechanism of a kind of track operation facility according to claim 9, is characterized in that: be all vertically installed with gusset between described two pieces first bent plate and two pieces second bent plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520119117.1U CN204661263U (en) | 2015-02-28 | 2015-02-28 | A kind of workplatform leveling swing type mechanism of track operation facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520119117.1U CN204661263U (en) | 2015-02-28 | 2015-02-28 | A kind of workplatform leveling swing type mechanism of track operation facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204661263U true CN204661263U (en) | 2015-09-23 |
Family
ID=54131674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520119117.1U Withdrawn - After Issue CN204661263U (en) | 2015-02-28 | 2015-02-28 | A kind of workplatform leveling swing type mechanism of track operation facility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204661263U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104692302A (en) * | 2015-02-28 | 2015-06-10 | 徐州徐工随车起重机有限公司 | Work platform leveling and slewing mechanism for rail operation machine |
| WO2019001589A1 (en) * | 2017-11-28 | 2019-01-03 | 徐工集团工程机械有限公司 | Pitch change apparatus and tunnel maintenance vehicle |
-
2015
- 2015-02-28 CN CN201520119117.1U patent/CN204661263U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104692302A (en) * | 2015-02-28 | 2015-06-10 | 徐州徐工随车起重机有限公司 | Work platform leveling and slewing mechanism for rail operation machine |
| WO2019001589A1 (en) * | 2017-11-28 | 2019-01-03 | 徐工集团工程机械有限公司 | Pitch change apparatus and tunnel maintenance vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107010550A (en) | A kind of counterweight can adjust cantilever type rotating crane | |
| CN202936116U (en) | Folding type truck crane | |
| CN2795434Y (en) | Variable amplitude link rod mechanism of rotary digging and drilling machine movable arm | |
| CN108643574A (en) | A kind of concreting distributing system suitable for multi-state | |
| CN102910561A (en) | Aerial work platform and autorail | |
| CN204661263U (en) | A kind of workplatform leveling swing type mechanism of track operation facility | |
| CN104692302A (en) | Work platform leveling and slewing mechanism for rail operation machine | |
| CN202897964U (en) | High-altitude operation platform and autorail | |
| CN204980934U (en) | Cantilever crane device | |
| CN202465223U (en) | Cover plate-turning machine | |
| CN204958224U (en) | Lift cantilever crane | |
| CN205204682U (en) | Folding arm -type lorry crane | |
| CN203568724U (en) | Mast and engineering machine vehicle configured with same | |
| CN202988664U (en) | Autorail | |
| CN202465121U (en) | Suspension arm of crane | |
| CN211102510U (en) | Rear overhang assembly jacking equipment | |
| CN2863316Y (en) | Turn-over apparatus for steel ladle | |
| CN208686100U (en) | A kind of concreting distributing system suitable for multi-state | |
| CN202465117U (en) | Suspending arm of crane | |
| CN202465102U (en) | Double-trolley rotary electromagnetic overhead crane with carrier-beam | |
| CN207348867U (en) | A kind of Multifunctional aloft-work constructing device for constructing tunnel | |
| CN105502176A (en) | Hydraulic luffing-type cantilever tower crane | |
| CN101769826A (en) | Jib crane test bed | |
| CN206375593U (en) | A kind of balance crane | |
| CN200951939Y (en) | Dual rotating arm crane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150923 Effective date of abandoning: 20170517 |
|
| AV01 | Patent right actively abandoned |