CN202810851U - Roadway reversible loader - Google Patents
Roadway reversible loader Download PDFInfo
- Publication number
- CN202810851U CN202810851U CN 201220072391 CN201220072391U CN202810851U CN 202810851 U CN202810851 U CN 202810851U CN 201220072391 CN201220072391 CN 201220072391 CN 201220072391 U CN201220072391 U CN 201220072391U CN 202810851 U CN202810851 U CN 202810851U
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- scraper bowl
- conveyer
- frame
- roadway
- chassis
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Abstract
The utility model relates to a roadway reversible loader. The roadway reversible loader comprises a chassis traveling wheel, a chassis big frame, a conveying and supporting frame and power machine, a conveyor, a conveyor lifting oil cylinder, a scraper bucket and support lifting oil cylinder, a scraper support and extension arm, a scraper bucket rotating oil cylinder, a scraper bucket rotating pull arm, a scraper bucket, a conveying bin, a conveying support rotating pin shaft, a scraper bucket support rotating pin shaft and a scraper bucket rotating shaft. The device can solve the difficult problems of heavy-gradient roadway loading and ultra-low roadway loading. A crawler and a scraper conveyor are not used in a heavy-gradient inclined shaft loader. The technique is designed by comprehensive utilization of the principle of a slag-raking machine and the principle of the loader, namely the raking structure of the ordinary slag-raking machine is replaced, a full-scraper bucket or half-scraper bucket excavating device of the loader is mounted according to the actual conditions, and the full-scraper bucket or half-scraper bucket excavating device is simultaneously assembled on a mechanical hand device or a hole drilling device or a drilling device, so as to form a shelling, mining or loading integrated machine.
Description
Technical field
The utility model relates to the tunnel drill field, particularly a kind of roadway reversible type loader.
Background technology
China's mine resources is extensive, but most of seam thicknesses are between 50cm-150cm, and the overwhelming majority needs the hole to adopt, and particularly many ore beds are in three-dimensional or the plunge state, present roadway loading machine is suitable gallery work only, is not suitable for heavy grade inclined shaft and ultralow roadway work.
The utility model content
Technical problem to be solved in the utility model provides a kind of roadway reversible type loader.
For solving the problems of the technologies described above, the utility model is realized as follows: a kind of roadway reversible type loader comprises chassis road wheel, large of chassis, carries bearing support and dynamic power machine, conveyer, conveyer hoist cylinder, scraper bowl and support lifting shaft cylinder, dipper frame and adjutage, scraper bowl rotary oil cylinder, scraper bowl rotation torque arm, scraper bowl, conveying storehouse, transfer gantry rotary pin shaft, dipper frame rotary pin shaft and scraper bowl axis of rotation; Four described chassis road wheels are connected to the both sides on large of described chassis, and large front portion connects rotatable described dipper frame and adjutage by described dipper frame rotating dog on described chassis; At the front end of described dipper frame and the adjutage described scraper bowl that is rotatably connected, be fixedly connected with described scraper bowl rotation torque arm at described scraper bowl, described scraper bowl rotation torque arm and described scraper bowl are jointly around described scraper bowl axis of rotation rotation; Described scraper bowl rotary oil cylinder two ends connect respectively described scraper bowl rotation torque arm and described dipper frame and adjutage; Described scraper bowl and support hoist cylinder one end are connected on large of the described chassis, and the other end is connected on described dipper frame and the adjutage, the flexible drive dipper frame of described scraper bowl and support hoist cylinder and adjutage oscilaltion campaign; Described conveyer one end inserts the bottom of large of described chassis and described dipper frame and adjutage, and described conveying storehouse is housed on the top of described conveyer; Large the rear portion with described conveyer is provided with described conveyer hoist cylinder on described chassis; Take exercises up and down around described transfer gantry rotary pin shaft in the rear portion of described conveyer, the front portion of described conveyer is fixed; Large afterbody is equipped with described conveying bearing support and dynamic power machine on described chassis.
Good effect of the present utility model is: this device solves the heavy grade roadway load and a ultralow roadway loading difficult problem.It can not use crawler belt and drag conveyor in heavy grade inclined shaft loader.Present technique is that comprehensive utilization Cinder Machine principle and loader principle design form, namely change the digging structure of taking off of common Cinder Machine, load onto full scraper bowl or the half scraper bowl excavating gear of loader according to actual conditions, fit on robot device or cutter eye device or brill dig device simultaneously namely becomes and sets off firecrackers, digs up mine, loads integrated machine.
Description of drawings
Fig. 1 is half bucker-type counter-rotating loader complete machine structure side schematic view;
Fig. 2 is half bucker-type counter-rotating loader complete machine structure schematic top plan view;
Fig. 3 is that reversible type loader ultra-low laneway structure for conveying reduces the attach structure schematic diagram;
Fig. 4 is structure for conveying schematic diagram when heavy grade inclined shaft ultra-low laneway uses;
Fig. 5 is the general tunnel of full bucker-type reversible type loader complete machine structure side schematic view;
Fig. 6 is full bucker-type heavy grade inclined shaft reversible type loader complete machine structure side schematic view;
Fig. 7 is that scraper bowl advances the complete machine structure side schematic view in front and back automatically;
Fig. 8 is the integrated complete machine structure side schematic view of (excavation) loading of setting off firecrackers;
Fig. 9 is conveyer belt automatic tightness regulating apparatus structure schematic diagram.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Roadway counter-rotating loader described in the utility model comprises: chassis road wheel 1, large 2 on chassis, carry bearing support and dynamic power machine 3, delivery wheel 4, conveyer 5, conveyer hoist cylinder 6, scraper bowl and support lifting shaft cylinder 7, dipper frame and adjutage 8, scraper bowl rotary oil cylinder 9, scraper bowl rotation torque arm 10, scraper bowl 11, carry storehouse 12, conveyer belt 13, transfer gantry rotary pin shaft 14, dipper frame rotary pin shaft 15, scraper bowl axis of rotation 16, conveyer belt degree of tightness regulating wheel 17, conveyer driving wheel 18, carriage attached frame (flexible Extension support) 19, carriage body frame 20, carriage side arm 21, carriage side arm contiguous block (point) 22, walking vehicle axle 23, dipper frame 24, carriage front support bracket 25, the carriage attached frame is just regulated axis of rotation 26, scraper bowl axis of rotation 27, telescopic boom (or telescopic oil cylinder) 28, portal frame (or slidably portal frame) 29, Aided Machine 30, belt tension introduction 31, expansion tightening wheel support 32, tensioner is regulated moving frame (spring moves bearing) 33, tensioner is regulated moving frame axis of rotation (pin) 34, tensioner is regulated and is decided frame (spring is decided bearing) 35, spring guide shaft 36, spring 37, spring stop collar (plate) 38 and conveyer belt guide wheel 39.
As shown in Figure 1 and Figure 2, four chassis road wheels 1 are connected to the both sides on large 2 on chassis, large 2 front portion is flexibly connected rotatable dipper frame and adjutage 8 (according to actual needs also shouldn't adjutage) on the chassis, and dipper frame and adjutage 8 can be rotatably connected around dipper frame rotating dog 15.At the front end of dipper frame and adjutage 8 scraper bowl 11 that is rotatably connected, be fixedly connected with scraper bowl rotation torque arm 10 at scraper bowl 11, scraper bowl rotation torque arm 10 and scraper bowl 11 are jointly around 27 rotations of scraper bowl axis of rotation.Scraper bowl rotary oil cylinder 9 two ends connect respectively scraper bowl rotation torque arm 10 and dipper frame and adjutage 8, and scraper bowl rotary oil cylinder 9 is finished to shovel to dig with spinning movement by scraper bowl rotation torque arm 10 drive scraper bowls 11 and finished the loading task.Scraper bowl and support hoist cylinder 7 one ends are connected on large 2 on the chassis, the other end is connected on dipper frame and the adjutage 8, the flexible drive dipper frame of scraper bowl and support hoist cylinder 7 and adjutage 8 oscilaltion campaigns, avoid regulating thereby regulate the excavation height of scraper bowl 11 and met when hard rock hinders, increase the suitability that excavates.The position that suits can be selected in the position of scraper bowl and support hoist cylinder 7 and scraper bowl rotary oil cylinder 9 according to the size of machinery, principle is that scraper bowl and support hoist cylinder 7 guarantees that dipper frames and adjutage 8 can reach and adjust the required height of scraper bowl 11, and scraper bowl rotary oil cylinder 9 can guarantee that scraper bowl 11 reaches and excavates and the necessary anglec of rotation of discharging.
Be arranged on the bottom that conveyer 5 one ends on large 2 on the chassis insert large 2 on chassis and dipper frame and adjutage 8, be equipped with on the top of conveyer 5 and carry storehouse 12, the material that scraper bowl 11 excavates is finished the loading task through carrying storehouse 12 to enter afterbody that conveyer belt transports conveyer 5 to the outward transport vehicle of packing into.The terrain clearance that the rear portion conveyer hoist cylinder 6 of large 2 and conveyer 5 is used for regulating conveyer 5 on the chassis is convenient to the haulage vehicle of applicable differing heights.The certain amplitude motion can be done up and down around transfer gantry rotary pin shaft 14 in the rear portion of conveyer 5, and the front portion of conveyer 5 is fixed, and large 2 afterbody is equipped with and assists the supporting carriage when carrying bearing support and dynamic power machine 3 to be used for walking on the chassis.Large 2 is equipped with the car load power source on the chassis, and this power source is used with or electronic and machine power is dual-purpose as major impetus take electronic or machine power or electronic and machine power.
The first embodiment of the present utility model is as depicted in figs. 1 and 2: Fig. 1 and Fig. 2 are that intention and schematic top plan view are looked in the side of the generally the most applicable half bucker-type reversible type loader complete machine structure in ultralow (more than the high 60cm, 180cm is following) gallery road and light grade tunnel.The half scraper bowl meaning is the scraper bowl principle of using loader, only gets half scraper bowl in order to reduce operation height, and without dipper frame, and material that scraper bowl shovels is directly delivered to by conveyer belt 13 and finished its task on the transport vehicle by the rotational structure conveying storehouse 12 of packing into.
The second embodiment of the present utility model is as shown in Figure 3: Fig. 3 be ultra-low laneway when using conveyer reduce the structural representation of working depth, the design's purpose is a loading difficult problem that solves ultra-low laneway, is one of main task so the solution structure for conveying takies height space.
The design is arranged on usual conveyer driving wheel 18 at the position at middle part, conveyer below, with the thickness of the large frame of reduction conveying, respectively increasing a driven pulley on the both sides of conveyer driving wheel 18 is that conveyer belt degree of tightness regulating wheel 17 is regulated the degree of tightness of belt, assisted belt deflection is adjusted with the contact surface of conveyer driving wheel 18, the common adjusting device of the auxiliary conveyer belt of association in order to regulate conveyer belt 13.Conveyer belt 13 is with U-shaped conveyer belt degree of tightness regulating wheel 17 and the conveyer driving wheel 18 walked around, and it is carriage attached frame (be with telescopic adjustment or add up and down bending adjusting device) 19, carriage body frame 20 and carriage side arm 21 that conveyer 5 is divided into three joints.With carriage side arm contiguous block (point) 22 carriage side arm 21 is fixedly connected on the walking vehicle axle 23, carry storehouse 12 to be fixedly connected on the carriage side arm 21, and make the front end of carriage side arm 21 and carry storehouse 12 to place under scraper bowl rotation torque arm 10, scraper bowl 11, the scraper bowl axis of rotation 16, the material of being convenient in the scraper bowl 11 is discharged into conveying storehouse 12.Carriage body frame 20 is rotatably connected by transfer gantry rotary pin shaft 14 with carriage side arm 21, carriage attached frame 19 and carriage body frame 20 are movable or be rotatably connected, are connected with conveyer and are connected in large 2 on conveyer hoist cylinder 6 and chassis, stretch lifting carriage body frame 20 and driving conveying belt degree of tightness regulating wheel 17, conveyer driving wheel 18, the carriage attached frame 19 etc. of conveyer hoist cylinder 6 move up and down to regulate the haulage vehicle charging that differing heights is highly satisfied in discharging.
The 3rd embodiment of the present utility model is as shown in Figure 4: Fig. 4 is structure for conveying schematic diagram when heavy grade inclined shaft ultra-low laneway uses.This structure is that conveyer 5 is divided into two joints, carriage attached frame 19 (can be with extension adjustment device) is rotatably connected with carriage body frame 20 with transfer gantry rotary pin shaft 14, carriage body frame 20 1 ends are fixedly connected with carrying bearing support and dynamic power machine 3, and carriage body frame 20 other ends are connected with large 2 on chassis by conveyer hoist cylinder 6.Conveyer was sent into material in the transport vehicle at rear after conveyer hoist cylinder 6 was carried storehouse 12 liftings with carriage body frame 20 bands after the material of carrying storehouse 12 is filled, the function in conveyer hoist cylinder 6, carriage body frame 20, conveying storehouse 12 is the angles that change conveyer and ground, guarantees that the feeding gradient of conveyer belt is in suitable scope.Carry front sideline and the scraper bowl axis of rotation 16 in storehouse 12 to pass through with minimum clearance, can arrive the height that is higher than scraper bowl axis of rotation 16, guarantee that simultaneously the material of scraper bowl 11 is discharged into conveying storehouse 12 before 6 liftings of conveyer hoist cylinder.
The 4th embodiment of the present utility model is as shown in Figure 5: Fig. 5 is the structural representation that full bucker-type counter-rotating loader uses in general tunnel (light grade or gallery road).The similar Fig. 1 of its operating principle, the main difference point is that the material of scraper bowl 11 is to be discharged into by rotation after the lifting of scraper bowl and support lifting shaft cylinder 7 drive dipper frames 24 to carry storehouse 12, increase in case of necessity and carry side arm bearing support 25, carry side arm bearing support 25 1 ends to be fixedly connected with large 2 on chassis, the other end is connected with carriage body frame 20 by transfer gantry rotary pin shaft 14, and purpose is to be convenient to install scraper bowl and support lifting shaft cylinder 7, dipper frame rotary pin shaft 15, dipper frame 24 etc.Can also increase in case of necessity carriage and just regulate axis of rotation 26, carriage attached frame (flexible Extension support) 19 and carriage body frame 20 are just regulated axis of rotation 26 by carriage and are rotatably connected, and are used for auxiliary adjustment discharging height.
The 5th embodiment of the present utility model is as shown in Figure 6: Fig. 6 is the full bucker-type counter-rotating loader structural representation that the heavy grade inclined shaft uses.Conveyer hoist cylinder 6 is arranged on the front end of carriage body frame 20, and the shovel excavation formula of this embodiment is identical with Fig. 5, and the working method of conveyer is identical with Fig. 4.
The 6th embodiment of the present utility model is as shown in Figure 7: Fig. 7 be scraper bowl automatically before and after the push structure schematic diagrames.Because must move forward and backward the excavation loading and unloading task that just can finish scraper bowl by complete machine during the work of aforementioned scraper bowl, be unfavorable for like this being connected of loader and transport vehicle, easily cause collsion damage and the increase power consumption of two machineries.So, this structure is that the extension on large 2 on chassis is blocked, increase telescopic support arm or oil cylinder 28 in the centre, telescopic boom (or oil cylinder) 28 push-and-pull scraper bowls and support lifting shaft cylinder 7, dipper frame and adjutage 8, scraper bowl rotary oil cylinder 9, scraper bowl rotation torque arm 10, scraper bowl 11, dipper frame rotary pin shaft 15, dipper frame 24, carriage front support bracket 25, finish shovel when scraper bowl axis of rotation 27 grades seesaw and dig and the loading and unloading task, increase telescopic support arm or oil cylinder 28 in the centre and for increasing stability and fastness many arranged side by side uses can be installed as required.
The 7th embodiment of the present utility model is as shown in Figure 8: Fig. 8 sets off firecrackers, broken, dig dress, load integrated complete machine schematic diagram. because this mechanical anterior device is short, portal frame (or slidably portal frame) 29 can forwardly be installed, at portal frame 29 Aided Machine 30 is installed, as the anterior device that the machinery of automatically setting off firecrackers is installed, crushing mechanism, the anterior device of excavation machinery etc., automatically set off firecrackers machinery anterior device, crushing mechanism, the anterior device of excavation machinery etc. mechanically are referred to as portal frame 30 at this, portal frame 30 is installed is later the loading integrated machine of setting off firecrackers, or broken loading integrated machine, or excavate and load integrated machine.
The frame mode of Fig. 7, Fig. 8 is fit to full bucker-type and also is fit to half bucker-type, and same structure is no longer narrated, and the side schematic view both sides structure of each figure is symmetrical.The rotation of the carriage of conveyer, bending angle are to determine according to the actual needs of different machineries.Each structure of the design can be used separately also on different tool machines and can be used in combination side by side as required.The front portion structure mode of Fig. 7, Fig. 8 is fit to full bucker-type and half bucker-type.
Shown in Figure 9, the use principle of conveyer belt automatic tightness regulating device is: when conveyer often folds use, and the degree of tightness that can automatically regulate conveyer belt; Often not folding in the structure of curved moving use, can not use this device.Tensioner is regulated moving frame (spring move bearing) 33 and tensioner adjusting and is decided frame (spring is decided bearing) 35 and be rotatably connected by transfer gantry rotary pin shaft 14, belt tension introduction 31 is regulated moving frame (spring moves bearing) 33 by expansion tightening wheel support 32 and tensioner and is fixedly connected with, decide mounting spring stop collar (plate) 38 on frame (spring is decided bearing) 35 and tensioner adjusting moving frame (spring moves bearing) 33 in the tensioner adjusting, be provided with spring 37 in the spring stop collar (plate) 38, spring 37 changes along the flexible angle of belt tension guide wheel 31 and conveyer belt guide wheel 39 that makes of spring guide shaft 36, thereby make conveyer belt 13 be in all the time certain degree of tightness state, reach the purpose of automatic adjusting conveyer belt 13 degrees of tightness.Belt tension guide wheel 31 and conveyer belt guide wheel 39 can exchange installation as required with respect to the upper-lower position of belt 13.
Good effect of the present utility model is: this device solves the heavy grade roadway load and a ultralow roadway loading difficult problem.It can not use crawler belt and drag conveyor in heavy grade inclined shaft loader.Present technique is that comprehensive utilization Cinder Machine principle and loader principle design form, namely change the digging structure of taking off of common Cinder Machine, load onto full scraper bowl or the half scraper bowl excavating gear of loader according to actual conditions, be assemblied in simultaneously robot device or cutter eye device or brill and dig device and namely become or set off firecrackers or dig up mine or load integrated machine.
Claims (8)
1. roadway reversible type loader, it is characterized in that, comprise chassis road wheel, large of chassis, carry bearing support and dynamic power machine, conveyer, conveyer hoist cylinder, scraper bowl and support lifting shaft cylinder, dipper frame and adjutage, scraper bowl rotary oil cylinder, scraper bowl rotation torque arm, scraper bowl, conveying storehouse, transfer gantry rotary pin shaft, dipper frame rotary pin shaft and scraper bowl axis of rotation; Four described chassis road wheels are connected to the both sides on large of described chassis, and large front portion connects rotatable described dipper frame and adjutage by described dipper frame rotating dog on described chassis; At the front end of described dipper frame and the adjutage described scraper bowl that is rotatably connected, be fixedly connected with described scraper bowl rotation torque arm at described scraper bowl, described scraper bowl rotation torque arm and described scraper bowl are jointly around described scraper bowl axis of rotation rotation; Described scraper bowl rotary oil cylinder two ends connect respectively described scraper bowl rotation torque arm and described dipper frame and adjutage; Described scraper bowl and support hoist cylinder one end are connected on large of the described chassis, and the other end is connected on described dipper frame and the adjutage, the flexible drive dipper frame of described scraper bowl and support hoist cylinder and adjutage oscilaltion campaign; Described conveyer one end inserts the bottom of large of described chassis and described dipper frame and adjutage, and described conveying storehouse is housed on the top of described conveyer; Large the rear portion with described conveyer is provided with described conveyer hoist cylinder on described chassis; Take exercises up and down around described transfer gantry rotary pin shaft in the rear portion of described conveyer, the front portion of described conveyer is fixed; Large afterbody is equipped with described conveying bearing support and dynamic power machine on described chassis.
2. roadway reversible type loader according to claim 1 is characterized in that, described roadway counter-rotating loader also comprises: conveyer belt, scraper bowl axis of rotation, conveyer belt degree of tightness regulating wheel, conveyer driving wheel, carriage side arm contiguous block and walking vehicle axle; The middle part is provided with described conveyer driving wheel below described conveyer, respectively is provided with a described conveyer belt degree of tightness regulating wheel on the both sides of described conveyer driving wheel; Described conveyer belt is with U-shaped described conveyer belt degree of tightness regulating wheel and the described conveyer driving wheel walked around; Described conveyer is divided into carriage attached frame, carriage body frame and carriage side arm, and described carriage side arm is fixedly connected on the described walking vehicle axle by described carriage side arm contiguous block; Described conveying storehouse is fixedly connected on the described carriage side arm, and the front end of described carriage side arm and described conveying storehouse are placed under described scraper bowl rotation torque arm, described scraper bowl, the described scraper bowl axis of rotation; Described carriage body frame is rotatably connected by described transfer gantry rotary pin shaft with described carriage side arm, and described carriage attached frame is movable with described carriage body frame or be rotatably connected, large of described conveyer hoist cylinder and described chassis be connected conveyer and be connected.
3. roadway reversible type loader according to claim 1 is characterized in that, described conveyer can also be divided into described carriage attached frame and carriage body frame; Described carriage attached frame is rotatably connected with described carriage body frame by described transfer gantry rotary pin shaft, described carriage body frame one end is fixedly connected with described conveying bearing support and dynamic power machine, and the other end is connected by large of described conveyer hoist cylinder and described chassis.
4. roadway reversible type loader according to claim 1 is characterized in that, described roadway counter-rotating loader also comprises dipper frame, carries side arm bearing support and carriage just to regulate axis of rotation; Described conveying side arm bearing support one end is fixedly connected with large of described chassis, and the other end is connected with described carriage body frame by described transfer gantry rotary pin shaft; Described carriage attached frame and described carriage body frame are just regulated axis of rotation by described carriage and are rotatably connected.
5. roadway reversible type loader according to claim 4 is characterized in that, described roadway counter-rotating loader also comprises telescopic boom or oil cylinder; The extension on large of described chassis is blocked, increased telescopic support arm or oil cylinder in the centre, described telescopic boom or oil cylinder one end connect described scraper bowl and support lifting shaft cylinder, the other end is connected with large of described chassis.
6. roadway reversible type loader according to claim 4 is characterized in that, described roadway counter-rotating loader also comprises portal frame or slidably portal frame and Aided Machine; Described anterior install portal frame or slidably portal frame described Aided Machine is installed, described Aided Machine comprises anterior device, the crushing mechanism of the machinery of automatically setting off firecrackers, the anterior device of excavation machinery.
7. roadway reversible type loader according to claim 1, it is characterized in that, large is equipped with the car load power source on described chassis, and described power source can be used with or electronic and machine power is dual-purpose as major impetus take electronic or machine power or electronic and machine power.
8. roadway reversible type loader according to claim 1 is characterized in that, described scraper bowl is half scraper bowl or full scraper bowl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220072391 CN202810851U (en) | 2012-03-01 | 2012-03-01 | Roadway reversible loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220072391 CN202810851U (en) | 2012-03-01 | 2012-03-01 | Roadway reversible loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202810851U true CN202810851U (en) | 2013-03-20 |
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ID=47869749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220072391 Expired - Fee Related CN202810851U (en) | 2012-03-01 | 2012-03-01 | Roadway reversible loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202810851U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109881732A (en) * | 2019-02-25 | 2019-06-14 | 安徽瑞达机械有限公司 | A kind of mine loader material-gathering device |
-
2012
- 2012-03-01 CN CN 201220072391 patent/CN202810851U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109881732A (en) * | 2019-02-25 | 2019-06-14 | 安徽瑞达机械有限公司 | A kind of mine loader material-gathering device |
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| 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: 20130320 Termination date: 20150301 |
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| EXPY | Termination of patent right or utility model |