CN202508560U - Mining double-layer double-conveying belt conveyer - Google Patents
Mining double-layer double-conveying belt conveyer Download PDFInfo
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- CN202508560U CN202508560U CN2012200952222U CN201220095222U CN202508560U CN 202508560 U CN202508560 U CN 202508560U CN 2012200952222 U CN2012200952222 U CN 2012200952222U CN 201220095222 U CN201220095222 U CN 201220095222U CN 202508560 U CN202508560 U CN 202508560U
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- belt conveyer
- adhesive tape
- frame
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Abstract
The utility model discloses a mining double-layer double-conveying belt conveyer which is provided with two sets of belt conveyers having the vertical parts overlappingly arranged. the tensioning and redirecting mechanism of the upper belt conveyer is arranged in front of a lower driving mechanism, the tensioning and redirecting mechanism of the lower belt conveyer is arranged in a trench below an installing base and is adjacent to the lower driving mechanism; the wheels at the two ends of a tension vehicle are provided with double wheel rims, and derailing proofing wheels contacted with the side surfaces of guide rails are arranged at the two sides of the lower part of the vehicle body; the plurality of supporting legs of the middle rectangular frames of the two sets of belt conveyers are double-layer compound supporting legs, the double-layer compound supporting legs are provided with a plurality of adjustable hoops, the upper rectangular frame and the lower rectangular frame are arranged into the corresponding hoops respectively, the upper rectangular frame and the lower rectangular frame are connected to a lower supporting roller through an installing rack, a groove-shaped supporting roller, and a recessed arc support. The mining double-layer double-conveying belt conveyer provided ensures the stable, safe, and high-efficiency running, and the mining double-layer double-conveying belt conveyer is convenient in installation and wide in application; in addition, the mining double-layer double-conveying belt conveyer has great application values in the reconstruction of medium and small coal mines, particularly, old conveying tunnels.
Description
Technical field
The utility model relates to the belt conveyer that uses under a kind of coal mine.
Background technology
Belt conveyer is because operational throughput is big, fed distance is long; Safe and reliable, degree of automation is high, easy maintenance; Recurrent expenses is low, applied widely, under China every profession and trade widespread use, particularly coal mine more than 90% is to adopt belt conveyer as transportation means.The middle and small scale coal mine of China southwestward is mainly the mountain region inclined seam, because the coal seam is thin, coal seam branch is complicated, the space of underworkings receives the restriction in investment and coal seam, and large-scale efficient delivery system can't be installed, and generally adopts belt conveyer; Existing belt conveyer comprises frame, is located at upper and lower two-layer carrying roller, driver train, tensioning changed course mechanism, adhesive tape, stern barrel on the frame; Frame comprises rectangular frame and several supporting legs, and driver train includes motor, retarder, coupler and the cylinder of being located at the frame head; Tensioning changed course mechanism comprises cylinder, tension car and the guide rail more than three, and tensioning changed course mechanism cylinder foremost is loaded on the tension car, and an end of a steel wire connects with tension car separately, and the other end is around on the pulley, and this pulley links to each other with the piston rod of oil cylinder; Adhesive tape is around on all cylinder and carrying roller, and carrying roller is loaded on rectangular frame or the supporting leg through the installation shaft at two ends.
The common arrangement separate unit is arranged belt conveyer on the underworkings base plate at present, if arrange two equipment, the tunnel need enlarge about 1 times, installs on the roadway floor side by side to guarantee equipment level.Domesticly in recent years the mining double-deck belt conveyer that transform voluntarily in the very small amount colliery occurred, its arrangement form is that two belt conveyers are arranged up and down, has realized practicing thrift the purpose in tunnel.It is two kinds of fixed type (like Fig. 1) and suspension types (like Fig. 2) that its keystone configuration form is divided into the middle part carrying roller; Two-layer up and down equipment all has independently actuating device, carrying roller, tensioning changed course device, stern barrel, adhesive tape etc.; Rely on the friction force of the driving drum of adhesive tape and driver train drive to make adhesive tape do the continuous closed-loop running; Realize afterbody charging, head discharging, reach the purpose of convey materials.
More than two kinds of equipment all on the standard belt conveyer, transform and form; In order to satisfy the driver train and the tensioning changed course arrangement of mechanism of two-layer equipment up and down; Have to the height of belt conveyer upper strata belt conveyer driver train to (particularly lower floor's belt conveyer driver train and stretching device place) between the belt conveyer tensioning changed course mechanism of lower floor improved; The equipment installation difficulty strengthens, along with the height increase of equipment, the safety of equipment operation, stable corresponding reduction; And, roadway construction difficulty and investment cost have been increased because device height increases, carries height of tunnel also to need corresponding increase.Simultaneously its actuating device, tensioning changed course mechanism and frame width are too wide, need take the People's Bank of China or the access path in tunnel, give the back personnel and make troubles through, overhaul of the equipments and material delivery.The equipment that has is arranged on the belt conveying drive end unit to reduce the height of stretching device position with the tensioning mechanism that alters course; To practice thrift the tunnel investment; But because the distance of tensioning changed course mechanism and driver train is longer, tension force provides needs a period of time, and therefore the cylinder tension force of adhesive tape and driver train is less when device start; Cause friction force less, the phenomenon that adhesive tape skids very easily occurs.
The double-deck belt conveyer of suspension type is that two suspension type belt conveyers are arranged in up and down on the same roadway floor; As shown in Figure 2, cooresponding two supporting legs 50 in adhesive tape both sides link to each other with snub pulley 52 through upper and lower two-layer flute profile carrying roller 51, because flute profile carrying roller 51 is a suspension type; The adhesive tape distance is less up and down; The double-deck back device height of installing is lower, and less demanding to the tunnel, its version is simple economy comparatively; But, cause equipment failure rate height, the easy sideslip of adhesive tape, equipment energy consumption height, transport efficiency lower because hanging carrier roller 51 can't be installed aligning carrier roller, the carrying roller resistance is big; Simultaneously because double-deck belt conveyer center of gravity is higher, its hanging carrier roller structure is an activity form owing to carrying roller; Under the situation of startup, shutdown, rubber belt from deviating, load change; Carrying roller 51,52 (particularly upper strata carrying roller) can cause the vibration and the distortion of frame with external force effect swing, has big potential safety hazard.Do not prevent that adhesive tape is at concave arc section lower floor adhesive tape ribbon (tightened when from bottom to top moving be lifted because of adhesive tape) owing to have; Carrying roller 51 is not for there being fixing hanging structure form in addition; This equipment can't be realized moving under the change gradient condition of concave arc, convex arc etc., can only realize 2 straight line conveying; Its supporting leg 50 adopts bolt of rear end plate to be connected with rectangular frame; Because the down-hole is with a varied topography; Belt conveyer height of landing leg and spacing receive the landform variable effect bigger; Bolt of rear end plate connects can't carry out corresponding adjusting, causes the belt conveyer zone face to be uneven, and the installation of this equipment rectangular frame and supporting leg 50 simultaneously, adjustment, maintenance and dismounting later on are all inconvenient.
The double-deck belt conveyer of fixed type is that two common belt conveyors are arranged in up and down on the same roadway floor; As shown in Figure 1, cooresponding two supporting legs 55 in adhesive tape both sides are equipped with upper and lower two-layer erecting frame 56, and each layer erecting frame 56 links to each other with snub pulley 59 through flute profile carrying roller 57, linear pattern support 58; It is higher that the back device height is installed; Device security hidden danger is big, poor stability, and common head-room can't satisfy the equipment needs simultaneously, and needing to expand high tunnel could install.Do not prevent adhesive tape at concave arc section lower floor adhesive tape ribbon (tightened when from bottom to top moving be lifted because of adhesive tape) owing to have, this equipment can't be realized that concave arc, convex arc etc. surpass under 6 ° the change gradient condition and move; Snub pulley 59 is installed as the draw-in groove form, and the installation shaft at snub pulley 59 two ends is easy to jump out from draw-in groove in operational process, is prone to the situation that snub pulley drops; Its supporting leg 55 adopts bolt of rear end plate to be connected with rectangular frame; Because the down-hole is with a varied topography; Height of landing leg and spacing receive the landform variable effect bigger; Bolt of rear end plate connects can't carry out corresponding adjusting, causes the belt conveyer zone face to be uneven, and the installation of this equipment rectangular frame and supporting leg 55 simultaneously, adjustment, maintenance and dismounting later on are all inconvenient; Above-mentioned each belt conveyer has seriously restricted the raising of coal mine output, so coal mining enterprise presses for a kind of conserve space, freight volume is big, safety performance is high conveyer.
Summary of the invention
The purpose of the utility model is the above-mentioned deficiency to prior art; Provide a kind of mining bilayer two conveying belt type conveyers; It doubles operational throughput under the situation that does not increase the tunnel investment; And stable, safe, the efficient operation of the equipment that guaranteed, and easy for installation, applied widely, the particularly old conveying of medium and small colliery tunnel transformation there is high using value.
For achieving the above object; The two conveying belt type conveyers of the mining bilayer of the utility model; Comprise two cover belt conveyers; Every cover belt conveyer includes frame, is located at upper and lower two-layer carrying roller, driver train, tensioning changed course mechanism, adhesive tape, stern barrel on the frame, and frame comprises rectangular frame and several supporting legs, and driver train includes motor, retarder, coupler and the cylinder of being located at the frame head; Tensioning changed course mechanism comprises cylinder, tension car and the guide rail more than three, and tensioning changed course mechanism cylinder foremost is loaded on the tension car, and an end of a steel wire connects with tension car separately, and the other end is around on the pulley, and this pulley links to each other with the piston rod of oil cylinder; Adhesive tape is around on all cylinder and carrying roller; The frame and the adhesive tape that it is characterized in that two cover belt conveyers are in the overlapping setting of longitudinal component; The tensioning changed course mechanism of upper strata belt conveyer is positioned at the place ahead of lower floor's driver train, and the tensioning changed course mechanism of lower floor's belt conveyer is located in the trench below the installation base surface and contiguous lower floor driver train; The wheel at tension car two ends is provided with the two-wheel edge, and both sides are provided with the anti-derailing of guide rail contacts side surfaces and take turns below vehicle body; The rectangular frame of two cover belt conveyers is provided with several supporting legs of part bonded assembly in longitudinal overlap and is the double-layer composite supporting leg; The double-layer composite supporting leg is provided with the chute of upper and lower layer; Several anchor ears are located in the chute separately through jam nut; Upper and lower layer rectangular frame is loaded in each self-corresponding anchor ear; The cooresponding two double-layer composite supporting legs in adhesive tape both sides link to each other through upper and lower tie-beam, all are fixed with erecting frame on the upper and lower layer rectangular frame, and the upper and lower layer erecting frame of adhesive tape both sides all flute profile carrying roller, the arcs of recesses support through separately links to each other with snub pulley.
The utility model is staggeredly arranged the driver train on upper strata and the driver train of lower floor at throughput direction, guarantee upper and lower layer driver train arrangement space, and realizes the transportation of levels material biobelt, discharging; Rotatable parts all are installed in the rectangular frame, have reduced the device space to greatest extent in, the safe operation normal at assurance equipment, guarantee the unimpeded of access path; Mechanism is located between upper strata driver train and the lower floor's driver train with upper strata tensioning changed course; For equipment operation provides enough tension force and improved the tension force reaction time, tensioning changed course mechanism of lower floor is located in the trench below the installation base surface and contiguous lower floor driver train, and assurance equipment adhesive tape when starting is non-slip; And assurance upper strata belt conveyer height consistent (linearly); Reduced the tunnel and transformed length and transform difficulty, the access path height does not reduce simultaneously, has improved device '; Adopt single wire tension version, reduce steel wire and twine; The tension car is the compact form of two-wheel edge+anti-derailing wheel, on the basis that guarantees equipment safety operation, has reduced device height and width, has also reduced the tunnel and has transformed difficulty, realizes conserve space, convenient purpose of installing;
The upper and lower two cover ribbon conveyers of the utility model are shared double-layer composite supporting leg at the middle part; Each anchor ear is adjusted at the lengthwise position on the supporting leg through locking nut, and anchor ear drives supporting leg and can move along rectangular frame simultaneously, can be based on the position relation of tunnel landform adjustment double-layer composite supporting leg and rectangular frame; Guarantee that device height one causes the equipment operation more stable; Install, dismantle more convenient simultaneously, the Device-General performance is good, is fit to produce in batches, enhance productivity; Simultaneously tie-beam can increase equipment intensity and limit height of materials, the concave arc section take place seriously to fly with situation under prevent that lower floor's adhesive tape from contacting with upper layer device, and do not damage adhesive tape; Replaced original horizontal linear support with the arcs of recesses support; Installing rack can be reduced downwards; Reduce flute profile carrying roller setting height(from bottom), the lower belt surface height is shortened, on the basis that guarantees the levels space length, reduced the height of middle part common mechanism; Structure is more compact, has improved stabilization of equipment performance and security performance.
As the further improvement of the utility model, the lower floor's erecting frame in the adhesive tape both sides also is provided with pressure roller, and pressure roller is positioned at the top of lower floor's flute profile carrying roller, and lower floor's adhesive tape is clipped between pressure roller and the groove profile carrier roller.Can make adhesive tape can not leave the carrying roller face in the concave arc fragment position, adhesive tape can't fly band, guarantees that adhesive tape passes through the concave arc section smoothly, has realized the change gradient safe operation of equipment between 6 °-20 °, and the applicable area of equipment is improved;
As the further improvement of the utility model, the installation shaft at two-layer snub pulley two ends is equipped with flat side, and erecting frame is provided with the cooresponding U-lag with flat side, and installation shaft places U-lag, in the upper fixed of U-lag baffle plate is arranged; Can prevent that snub pulley (particularly upper strata belt conveyer) from coming off under the situation of vibrating, damaging, influence normal operation of lower floor's belt conveyer and personal security;
In sum; The utility model doubles operational throughput under the situation that does not increase the tunnel investment; And stable, safe, the efficient operation of the equipment that guaranteed, and easy for installation, applied widely, the particularly old conveying of medium and small colliery tunnel transformation there is high using value.
Description of drawings
Fig. 1 is the cross sectional drawing of fixed double-deck conveyer for the middle part carrying roller.
Fig. 2 is the cross sectional drawing of the double-deck conveyer of suspension type for the middle part carrying roller.
Fig. 3 is the structural representation of the embodiment of the invention.
Fig. 4 is the birds-eye view of the embodiment of the invention.
Fig. 5 is Fig. 3 adhesive tape tension place cross sectional drawing at the middle and upper levels.
Fig. 6 is lower floor's adhesive tape tension place cross sectional drawing among Fig. 3.
Fig. 7 is double-layer composite supporting leg place, a middle part cross sectional drawing.
Fig. 8 is the rack construction figure at double-layer composite supporting leg place, middle part.
Fig. 9 is that A among Fig. 8 is to view.
Figure 10 is the mounting structure figure at snub pulley two ends.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed explanation.
Extremely shown in Figure 9 by Fig. 3; The two conveying belt type conveyers of this mining bilayer; Comprise that two are enclosed within the belt conveyer of the overlapping setting of longitudinal component; The upper strata belt conveyer comprises frame 1, is located at upper and lower two-layer carrying roller 2 and 3, driver train 4, tensioning changed course mechanism 5, adhesive tape 6, stern barrel 7 on the frame 1; Lower floor's belt conveyer comprises frame 31, is located at upper and lower two- layer carrying roller 32 and 33, driver train 34, tensioning changed course mechanism 35, adhesive tape 36, stern barrel 37 on the frame 31, and frame 1 or 31 includes rectangular frame 8 and several supporting legs 9, and driver train 4 or 34 includes motor 10, retarder 11, coupler 12 and the cylinder 13 of being located at the frame head; Tensioning changed course mechanism 5 or 35 includes four cylinders 14, tension car 15 and guide rail 16; Tensioning changed course mechanism 5 or 35 cylinder 14 foremost is loaded on the tension car 15; One end of one steel wire 17 connects with tension car 15 separately; The other end is around on the pulley 18, and this pulley 18 links to each other with the piston rod of separately oil cylinder 19; Adhesive tape 6 or 36 be around in all cylinders 13,14,7 or 37 and carrying roller 2 and 3 or 32 and 33 on; The frame 1 and 31 of two-layer belt conveyer, adhesive tape 6 and 36 are in the overlapping setting of longitudinal component; The tensioning changed course mechanism 5 of upper strata belt conveyer is positioned at the place ahead of lower floor's driver train 34, and the tensioning changed course mechanism 35 of lower floor's belt conveyer is located in the trench 38 below the installation base surface and contiguous lower floor driver train 34; The wheel 20 at tension car 15 two ends is provided with the two-wheel edge, and both sides are provided with the anti-derailing of guide rail 16 contacts side surfaces and take turns 22 below vehicle body 21; The rectangular frame 8 of two-layer belt conveyer is provided with several supporting legs 9 of part bonded assembly in longitudinal overlap and is double-layer composite supporting leg 9a; Double-layer composite supporting leg 9a is channel-section steel structure and the chute 23 that is provided with upper and lower layer; Several anchor ears 24 are located in the chute 23 separately through jam nut 25, and the channel-section steel of forming upper and lower layer rectangular frame 8 is loaded in each self-corresponding anchor ear 24, and adhesive tape 6 links to each other through upper and lower tie- beam 26,27 with the cooresponding two double-layer composite supporting leg 9a in 36 both sides; All be fixed with erecting frame 28,29 on the upper and lower layer rectangular frame 8; The upper and lower layer erecting frame 28,29 of adhesive tape both sides all flute profile carrying roller 39 or 43, the arcs of recesses support 40 or 44 through separately links to each other with snub pulley 41 or 45, and the lower floor's erecting frame 29 in the adhesive tape both sides also is provided with pressure roller 42, and pressure roller 42 is positioned at the top of lower floor's flute profile carrying roller 43; Lower floor's adhesive tape 36 is clipped between pressure roller 42 and the groove profile carrier roller 43; Also can at interval aligning carrier roller 49 be set on the flute profile carrying roller 39 or 43, adhesive tape is difficult for sideslip, and fault rate is low; Shown in figure 10, the installation shaft 46 at two-layer snub pulley 41,45 two ends is equipped with flat side, and erecting frame 28,29 is provided with the cooresponding U-lag 47 with flat side, and installation shaft 46 places U-lag 47, above U-lag 47, through screw retention baffle plate 48 is arranged;
The utility model is staggeredly arranged upper strata driver train 4 and lower floor's driver train 34 at throughput direction, guarantees upper and lower layer driver train arrangement space, and realize that upper and lower layer of material transports smoothly, discharging; Rotatable parts all are installed in the rectangular frame 8, have reduced the device space to greatest extent in, the safe operation normal at assurance equipment, guarantee the unimpeded of access path; Mechanism 5 is located between upper strata driver train 4 and the lower floor's driver train 34 with upper strata tensioning changed course; Tensioning changed course mechanism 35 of lower floor is located in the trench 38 below the installation base surface and contiguous lower floor driver train 34; For equipment operation provides enough tension force and has improved the tension force reaction time; Assurance equipment adhesive tape when starting is non-slip, and can guarantee upper strata belt conveyer height consistent (linearly), has reduced the tunnel and has transformed length and transform difficulty; The access path height does not reduce simultaneously, has improved device '; Adopt single wire tension version, reduce steel wire and twine; Tension car 15 is the compact form of two-wheel edge+anti-derailing wheel 22, on the basis that guarantees equipment safety operation, has reduced device height and width, has also reduced the tunnel and has transformed difficulty, realizes conserve space, convenient purpose of installing;
The upper and lower two-layer belt conveyer of the utility model is shared double-layer composite supporting leg 9a at the middle part; Each anchor ear 24 can be adjusted at the lengthwise position on the supporting leg 9a through jam nut 25; Anchor ear 24 drives supporting leg 9a and can move along rectangular frame 8 simultaneously; Can guarantee that device height one causes equipment operation more stable according to the position relation of tunnel landform adjustment double-layer composite supporting leg 9a and rectangular frame 8, install, dismantle more convenient simultaneously; The Device-General performance is good, is fit to batch manufacturing, enhances productivity; Simultaneously tie- beam 26,27 can increase equipment intensity and limit height of materials, the concave arc section take place seriously to fly with situation under prevent that lower floor's adhesive tape 36 from contacting with upper layer device, and do not damage adhesive tape; Replaced original horizontal linear support with arcs of recesses support 40 or 44; Can erecting frame 28,29 be reduced downwards; Reduce the setting height(from bottom) of flute profile carrying roller 39,43, the lower belt surface height is shortened, on the basis that guarantees the levels space length, reduced the height of middle part common mechanism; Structure is more compact, has improved stabilization of equipment performance and safety performance; Pressure roller 42 can make adhesive tape 36 can not leave the carrying roller face in the concave arc fragment position, and adhesive tape can't fly band, guarantees that adhesive tape passes through the concave arc section smoothly, has realized the change gradient safe operation of equipment between 6 °-20 °, and the applicable area of equipment is improved; Baffle plate 48 can prevent that snub pulley 41 or 45 (particularly upper strata belt conveyer) from coming off under the situation of vibrating, damaging, influence normal operation of lower floor's belt conveyer and personal security.
The utility model doubles operational throughput not increasing under the situation of tunnel investment, and the equipment that guaranteed is stable, safety, efficient operation, and easy for installation, applied widely, and the particularly old conveying of medium and small colliery tunnel transformation is had high using value.
Claims (3)
1. two conveying belt type conveyers of a mining bilayer; Comprise two cover belt conveyers; Every cover belt conveyer includes frame, is located at upper and lower two-layer carrying roller, driver train, tensioning changed course mechanism, adhesive tape, stern barrel on the frame; Frame comprises rectangular frame and several supporting legs, and driver train includes motor, retarder, coupler and the cylinder of being located at the frame head; Tensioning changed course mechanism comprises cylinder, tension car and the guide rail more than three, and tensioning changed course mechanism cylinder foremost is loaded on the tension car, and an end of a steel wire connects with tension car separately, and the other end is around on the pulley, and this pulley links to each other with the piston rod of oil cylinder; Adhesive tape is around on all cylinder and carrying roller; The frame and the adhesive tape that it is characterized in that two cover belt conveyers are in the overlapping setting of longitudinal component; The tensioning changed course mechanism of upper strata belt conveyer is positioned at the place ahead of lower floor's driver train, and the tensioning changed course mechanism of lower floor's belt conveyer is located in the trench below the installation base surface and contiguous lower floor driver train; The wheel at tension car two ends is provided with the two-wheel edge, and both sides are provided with the anti-derailing of guide rail contacts side surfaces and take turns below vehicle body; The rectangular frame of two cover belt conveyers is provided with several supporting legs of part bonded assembly in longitudinal overlap and is the double-layer composite supporting leg; The double-layer composite supporting leg is provided with the chute of upper and lower layer; Several anchor ears are located in the chute separately; Upper and lower layer rectangular frame is loaded in each self-corresponding anchor ear; The cooresponding two double-layer composite supporting legs in adhesive tape both sides link to each other through upper and lower tie-beam, all are fixed with erecting frame on the upper and lower layer rectangular frame, and the upper and lower layer erecting frame of adhesive tape both sides all flute profile carrying roller, the arcs of recesses support through separately links to each other with snub pulley.
2. the two conveying belt type conveyers of mining bilayer as claimed in claim 1 is characterized in that also being provided with pressure roller at lower floor's erecting frame of adhesive tape both sides, and pressure roller is positioned at the top of lower floor's flute profile carrying roller, and lower floor's adhesive tape is clipped between pressure roller and the groove profile carrier roller.
3. according to claim 1 or claim 2 two conveying belt type conveyers of mining bilayer; The installation shaft that it is characterized in that two-layer snub pulley two ends is equipped with flat side; Erecting frame is provided with the cooresponding U-lag with flat side, and installation shaft places U-lag, in the upper fixed of U-lag baffle plate is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200952222U CN202508560U (en) | 2012-03-14 | 2012-03-14 | Mining double-layer double-conveying belt conveyer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200952222U CN202508560U (en) | 2012-03-14 | 2012-03-14 | Mining double-layer double-conveying belt conveyer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202508560U true CN202508560U (en) | 2012-10-31 |
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ID=47061058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200952222U Withdrawn - After Issue CN202508560U (en) | 2012-03-14 | 2012-03-14 | Mining double-layer double-conveying belt conveyer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202508560U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102602659A (en) * | 2012-03-14 | 2012-07-25 | 四川东林矿山运输机械有限公司 | Double-layer double-conveying belt type conveyer for mine |
| CN104029981A (en) * | 2014-06-05 | 2014-09-10 | 苏州博讯仪器有限公司 | Novel separation and conveying device |
-
2012
- 2012-03-14 CN CN2012200952222U patent/CN202508560U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102602659A (en) * | 2012-03-14 | 2012-07-25 | 四川东林矿山运输机械有限公司 | Double-layer double-conveying belt type conveyer for mine |
| CN102602659B (en) * | 2012-03-14 | 2013-07-17 | 四川东林矿山运输机械有限公司 | Double-layer double-conveying belt type conveyer for mine |
| CN104029981A (en) * | 2014-06-05 | 2014-09-10 | 苏州博讯仪器有限公司 | Novel separation and conveying device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121031 Effective date of abandoning: 20130717 |
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| RGAV | Abandon patent right to avoid regrant |