CN111285018A

CN111285018A - Right-angle turning scraper conveyor

Info

Publication number: CN111285018A
Application number: CN202010168775.5A
Authority: CN
Inventors: 李文华; 董二景; 吴秀强; 孝旭; 王帅; 肖晶; 王翠; 王向荣; 王道明; 高婷婷
Original assignee: Shandong Energy Heavy Equipment Manufacturing Group Co Ltd
Current assignee: Shandong Energy Heavy Equipment Manufacturing Group Co Ltd
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2020-06-16

Abstract

The invention discloses a quarter turn scraper conveyor, which comprises a machine head, a middle part and a machine tail which are connected through a chain channel, wherein a scraper chain is arranged on the chain channel, the scraper chain is driven by the machine head and the machine tail to move circularly along the chain channel, the middle part is provided with a turntable mechanism for realizing the quarter turn of the scraper chain, the turntable mechanism comprises a turntable box, a turntable assembly and transition grooves, the turntable assembly is arranged in the turntable box and used for providing steering support for the scraper chain, the transition grooves are arranged at two ends of the turntable and butted with the chain channel, and the turntable assembly comprises an upper turntable and a lower turntable which rotate coaxially and provide steering support for the scraper chain; the chain wheel is arranged at the machine head and the machine tail respectively to pull the scraper chain to move, the pressing plate chain splitter used for realizing smooth meshing and separation of the scraper chain and the chain wheel is arranged corresponding to the chain wheel, and the pressing plate chain splitter is limited by the machine frame rods and the pressing plate rods in the machine head and the machine tail.

Description

Right-angle turning scraper conveyor

Technical Field

The invention belongs to the technical field of material conveying equipment, and particularly relates to a quarter turn scraper conveyor.

Background

The scraper conveyor is widely used for daily mining and conveying work of coal mines, the scraper conveyor for coal mines adopts an open type, coal mined by the coal mining machine conveniently falls onto the scraper conveyor, a middle steel groove adopts a middle double-chain structure, a traction scraper is adopted, production accidents such as chain ways can often occur when the scraper conveyor is used, and the scraper conveyor and a reversed loader lap joint are harsh in coal dust multi-working environment.

Therefore, the prior art is subject to further improvement and development.

Disclosure of Invention

In order to solve the above problems, a quarter turn flight scraper and a turntable mechanism thereof are proposed.

In order to achieve the purpose, the invention provides the following technical scheme:

a quarter turn scraper machine comprises a machine head, a middle part and a machine tail which are connected through a chain channel, wherein a scraper chain is arranged on the chain channel, the scraper chain is driven by the machine head and the machine tail together to circularly move along the chain channel, the middle part is provided with a turntable mechanism for realizing the quarter turn of the scraper chain, the turntable mechanism comprises a turntable box, a turntable assembly and transition grooves, the turntable assembly is arranged in the turntable box and used for providing steering support for the scraper chain, the transition grooves are arranged at two ends of the turntable and butted with the chain channel, and the turntable assembly comprises an upper turntable and a lower turntable which rotate coaxially and provide steering support for the scraper chain; the machine head and the machine tail are respectively provided with a chain wheel for driving the scraper chain to move, a pressing plate chain divider used for realizing smooth meshing and separation of the scraper chain and the chain wheel is arranged corresponding to the chain wheel, and the pressing plate chain divider is limited through the machine frame rods and the pressing plate rods in the machine head and the machine tail.

Preferably, a guiding block for guiding the scraper chain from the transition groove to the turntable box is arranged at the interface of the two ends of the turntable box of the turntable mechanism.

Preferably, the carousel case includes the bottom plate and sets up in the carousel backplate of carousel subassembly top, the inboard outer edge of bottom plate is provided with the bolt seat that is used for fixed carousel backplate, the carousel backplate passes through bolt fixed connection to on the bolt seat, the outer edge of carousel case is provided with and is used for preventing that coal from spilling over the carousel baffle of carousel incasement.

Preferably, the outer side of the rotary table box is provided with a movable upper edge used for limiting the scraper chain, the movable upper edge is arranged on a vertical plate outside the rotary table box, a T-shaped groove is formed in the vertical plate outside the rotary table box, and the movable upper edge is fixed in the T-shaped groove through a bolt.

Preferably, in the turntable mechanism, an upper chain plate for realizing scraper reset is arranged at the front end of the transition groove at the entrance side of the scraper chain.

Preferably, scraper blade chain includes scraper blade subassembly and the chain of connecting the scraper blade subassembly, the scraper blade subassembly includes the scraper blade body, the scraper blade body is including being used for being connected the middle part with the chain and being located the effect portion of being connected the middle part both sides, it sets up the plain ring groove that is used for the lock joint chain plain ring to connect middle part bottom surface, connects middle part bottom surface both sides and corresponds the plain ring groove and be provided with and be used for holding chain vertical ring and carry out spacing vertical ring groove to chain vertical ring, fixed connection is realized through U type bolt and lock nut's cooperation in chain plain ring and scraper blade body coupling middle part, be provided with the installation slotted hole that is used for holding lock nut on the scraper blade body coupling middle part, lock nut is last to set up and is used for cooperating lock nut to play locking limiting displacement's the anti-rotation packing ring, and installation slotted hole next door.

Preferably, the middle part of the flat ring groove forms a limiting column for clamping the flat ring of the chain, the top end of the limiting column is in butt joint with the U-shaped bolt, the front side and the rear side of the limiting column are arc surfaces, and the radius of the arc surface at the front side of the limiting column is larger than that at the rear side of the limiting column.

Preferably, the top surface of the front side of the connecting middle part of the scraper body is an inclined surface, the inclined surface inclines downwards along the moving direction of the scraper, and the included angle between the inclined surface and the horizontal plane is 6 degrees.

Preferably, prevent changeing the packing ring including the lock joint portion that is used for on the lock joint nut and the spacing arm of being connected with lock joint portion, set up the ring gear with the locknut interlock on the lock joint portion, locknut is last be provided with ring gear complex tooth's socket, spacing arm front end perk is L type structure.

Preferably, the front end of the pressing plate chain divider is arranged in a mounting opening of the chain wheel, a first groove used for clamping a pressing plate rod is arranged on the upper edge of the tail of the pressing plate chain divider, a second groove used for clamping a machine frame rod is arranged on the lower edge of the tail of the pressing plate chain divider, and the position of the pressing plate chain divider is locked through the limiting of the pressing plate rod and the machine frame rod.

Advantageous effects

The invention provides a quarter turn scraper conveyor and a turntable mechanism thereof, which have the following beneficial effects:

the invention can effectively prevent the scraper from falling off from the chain channel, can drive the coal mine to smoothly complete right-angle turning, reduces kinetic energy loss, reduces coal dust, reduces the risk of safety accidents, improves the working environment, has high reliability and service life of each component, is convenient to install, is convenient to maintain and popularize and use.

Drawings

FIG. 1 is a top view of a flight in an embodiment of the invention;

FIG. 2 is a schematic view of the overall structure of a pressing plate chain divider according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of the structure represented by a in FIG. 2;

FIG. 4 is a schematic diagram of a platen chain divider configuration in an embodiment of the present invention;

FIG. 5 is a top view of a turntable mechanism in an embodiment of the present invention;

FIG. 6 is a longitudinal cross-sectional view of a turntable mechanism in an embodiment of the present invention;

FIG. 7 is a top view of a turret box in an embodiment of the invention;

FIG. 8 is a side view of a guide block in an embodiment of the invention;

FIG. 9 is a longitudinal cross-sectional view of a turntable assembly in an embodiment of the present invention;

FIG. 10 is a top view of a turntable assembly in an exemplary embodiment of the invention;

FIG. 11 is a schematic view of the structure of the turntable shield in an embodiment of the present invention;

FIG. 12 is an enlarged view of a portion of A-A of FIG. 11;

FIG. 13 is a side cross-sectional view of a transition groove at the end of a rotary table screed machine in an exemplary embodiment of the invention;

FIG. 14 is a half sectional view of a squeegee in an embodiment of the invention;

FIG. 15 is a top perspective view of a squeegee in an embodiment of the invention;

FIG. 16 is a schematic view of a U-bolt configuration in accordance with an embodiment of the present invention;

FIG. 17 is a side view of a squeegee in an embodiment of the invention;

figure 18 is a cross-sectional view of a side view of a peg board in an embodiment of the invention;

FIG. 19 is a front view of an anti-rotation spacer in an embodiment of the invention;

FIG. 20 is a top view of an anti-rotation spacer in accordance with an embodiment of the present invention;

FIG. 21 is a half sectional view of a squeegee body in an embodiment of the invention;

FIG. 22 is a side view of a locknut in an embodiment of the present invention;

in the figure: 1000 chain way, 1100 scraper blade, 1200 chain, 1210 flat ring groove, 1220 vertical ring groove, 1300U-shaped bolt, 1400 locknut, 1401 tooth groove, 1500 anti-rotation washer, 1510 buckling part, 1520 limit arm, 1530 gear ring, 2000 head, 2100 press plate chain divider, 2110 first groove, 2120 second groove, 2200 press plate rod, 2300 machine frame rod, 3000 turntable mechanism, 3100 turntable box, 3110 turntable box outer side vertical plate, 3111, T-shaped groove, 3120 bolt seat, 3130 gap, 3140 pore plate, 3200 turntable assembly, 3201 upper turntable, 3202 lower turntable, 3203 bushing shaft, 3204 upper transparent cover, 3205 distance sleeve, 3206 bearing, 3207 oil seal, 3208 seal ring, 3209 upper fixed sleeve, 3210 floating seal ring, 3211 seal ring, 3212 lower fixed sleeve, 3213 lower transparent cover, 3214 oil seal, 3215 lower gland and connecting piece, 3300 turntable protective plate, 3301, turntable bottom plate, 3302 scraping block, 3400 guide block, 32120 transition lug, 3500 movable edge block, 3600 transition groove, 3800 turntable baffle, 3900 upper chain plate and 4000 tail

Detailed Description

In order to make the technical solutions of the present invention better understood, the following description of the technical solutions of the present invention with reference to the accompanying drawings of the present invention is made clearly and completely, and other similar embodiments obtained by a person of ordinary skill in the art without any creative effort based on the embodiments in the present application shall fall within the protection scope of the present application. In addition, directional terms such as "upper", "lower", "left", "right", etc. in the following embodiments are directions with reference to the drawings only, and thus, the directional terms are used for illustrating the present invention and not for limiting the present invention.

The following are specific embodiments of the present invention:

as shown in fig. 1 to 22, the present invention provides a quarter turn scraper conveyor, which includes a machine head 2000, a middle part and a machine tail 4000 connected by a chain way 1000, a scraper 1100 chain 1200 is arranged on the chain way 1000, the scraper chain is driven by the machine head 2000 and the machine tail 4000 together to circularly move along the chain way, a turntable mechanism 3000 for realizing the quarter turn of the scraper chain is arranged in the middle part, the turntable mechanism 3000 includes a turntable box 3100, a turntable assembly 3200 arranged in the turntable box 3100 and used for providing a turning support for the scraper chain, and transition slots 3600 arranged at two ends of the turntable and butted with the chain way, the turntable assembly 3200 includes an upper turntable 3210 and a lower turntable 3220 which coaxially rotate and provide a turning support for the scraper chain; the machine head 2000 and the machine tail 4000 are respectively provided with a chain wheel for driving the scraper chain to move, a pressing plate chain divider 2100 used for realizing smooth meshing and separation of the scraper 1100 chain 1200 and the chain wheel is arranged corresponding to the chain wheel, and the pressing plate chain divider 2100 is limited through a rack rod 2300 and a pressing plate rod 2200 in the machine head 2000 and the machine tail 4000.

Specifically, the interface of two ends of the turntable box 3100 of the turntable mechanism is provided with a guide block 3400 for guiding the scraper chain from the transition groove 3600 to the turntable box 3100. The guide block 3400 is comprised of two ear plates 3410 and a transition block 3420 that allows the flights to pass smoothly from the chain path through the center turntable mechanism.

Specifically, the turntable case 3100 includes a bottom plate and a turntable guard plate disposed above the turntable assembly, which can lock the turntable case to prevent dust from entering. The inner side outer edge of the bottom plate is provided with a bolt seat 3120 for fixing a rotary table guard plate, the rotary table guard plate 3300 is fixedly connected to the bolt seat 3120 through bolts and can lock a rotary table box to prevent dust from entering, the structure of the rotary table box comprises a bottom plate 3301, a scraping block 3302 is welded on a side plate of the rotary table box and is used for cleaning coal dust of a rotary table assembly, a partial enlarged view of the scraping block is shown in fig. 12, and a rotary table baffle 3800 for preventing coal from overflowing into the rotary table box 3100 is arranged on the outer edge of the rotary table box 3100.

Specifically, carousel case 3100 outside is provided with and is used for carrying on spacing activity top edge 3500 to the scraper chain, and activity top edge 3500 sets up on carousel case 3100 outside riser 3110, be provided with T type groove 3111 on carousel case 3100 outside riser 3110, the activity is gone up along passing through the bolt fastening in T type groove 3111. The movable upper edge can prevent the scraper from jumping out.

Specifically, in the turntable mechanism 3000, an upper chain plate 3900 for resetting the scraper is provided at the front end of the transition groove 3600 at the entrance side of the scraper chain. Ensuring that the flight 1100 does not flip out of the link 1000 back to the correct position when it is bounced by an irregular force.

Further, the turntable assembly 3200 is used for providing steering support for the scraper chain, and the structure of the turntable assembly comprises an upper turntable 3201, a lower turntable 3202, an upper transparent cover 3204, a distance sleeve 3205, an oil seal 3207, a sealing ring 3208, an upper fixed sleeve 3209, a floating seal ring 3210, a sealing ring 3211, a lower fixed sleeve 3212, a lower transparent cover 3213, an oil seal 3214, a lower gland and a connecting piece 3215. Go up carousel and last carousel coaxial core and rotate, realize connecting through bearing assembly to it turns to the support to make to scrape the smooth realization of scraper chain to provide for upper scraper chain and lower scraper chain respectively. The bearing assembly includes a bushing shaft 3203, the bushing shaft 3203 being disposed on upper and

lower disks

3201, 3202, which are connected to the bushing shaft 3203 by bearings 3206, respectively.

The turntable mechanism has the following advantages: the coal unloading point of the scraper conveyor and the reversed loader is changed into a rotating disc type, so that the overlapping mechanism of the scraper conveyor and the reversed loader is reduced, the power energy consumption is saved, the reliability and the service life of a transmission part are improved, the post configuration is reduced, the ventilation section of the position is increased, and the labor environment is improved; by adopting a rotating disc type guide structure, the continuous right-angle turning movement of the scraper is realized, the smooth turning of the coal flow is ensured, and the reduction of the concentration of bottom chain return coal and underground coal dust is facilitated; because the right-angle turning turntable is adopted without a driving part, the end bracket has no special requirements and has the same specification with the middle bracket, the types of the brackets are reduced, and the equipment maintenance is convenient; with carousel formula mechanism, reduced traditional scraper conveyor aircraft nose height, reduced mechanisms such as traditional scraper conveyor's aircraft nose change wire casing, optimized the cooperation of scraper conveyor with the coal-winning machine, reduced traditional scraper conveyor's aircraft nose structure space, more be favorable to the roof management at scraper conveyor aircraft nose position, the coal-winning machine coal-charging is effectual, and the safe production environment can promote.

Specifically, the flight chain includes a flight 1100 assembly and a chain 1200 connecting the flight assemblies, the scraper component comprises a scraper body, the scraper body comprises a connecting middle part used for being connected with the chain and action parts positioned at two sides of the connecting middle part, the bottom surface of the connecting middle part is provided with a flat ring groove 1210 used for buckling a chain flat ring, the two sides of the bottom surface of the connecting middle part corresponding to the flat ring groove 1210 are provided with vertical ring grooves 1220 used for accommodating chain vertical rings and limiting the chain vertical rings, the middle part of the chain 1200 flat ring connected with the scraper 1100 body is fixedly connected through the matching of the U-shaped bolt 1300 and the locknut 1400, the connecting middle part of the scraper body is provided with an installation slot hole for accommodating the locknut 1400, the anti-rotation washer 1500 used for being matched with the locknut to play anti-rotation limiting effects is arranged on the locknut, and a limiting groove used for limiting the anti-rotation washer 1500 is arranged beside the mounting groove hole.

Specifically, the flat ring groove 1210 middle part forms the spacing post of joint chain flat ring, spacing capital end and U type bolt 1300 butt joint, spacing post front and back side is the arc surface, and wherein, as shown in fig. 13, spacing post front side arc surface radius R1 is greater than spacing post rear side arc surface radius R2. Wherein the radian of front side circular arc face is greater than the radian of chain vertical ring arc tip, guarantees that chain 1200 can swing an angle on carousel mechanism 3000, provides centripetal force for scraper blade 1100 quarter turn, makes scraper blade 1100 turn easier, and rear side circular arc face radian slightly is greater than chain vertical ring arc tip radian, guarantees that when scraping the send object at the scraper blade machine, the chain is big with scraper blade laminating lifting surface area, changes to wait to scrape the send object and takes out the scraper blade machine chain way.

Specifically, the top surface of the front side of the connecting middle part of the scraper body is an inclined surface, the inclined surface inclines downwards along the moving direction of the scraper, and an included angle c between the inclined surface and the horizontal plane is 6 degrees as shown in fig. 12. Ensuring that the friction between the blade and the screed is reduced as the blade 1100 returns to the initial position from below the screed.

Specifically, prevent changeing packing ring 1500 including the position limiting arm 1520 that is used for the buckling part 1510 on the lock joint nut and is connected with buckling part 1510, set up the ring gear 1530 with the locknut interlock on the buckling part, locknut is last be provided with ring gear complex tooth's socket 1410, the tilting of position limiting arm front end is L type structure. The anti-rotation gasket can prevent the locknut from rotating outwards to be separated from the U-shaped bolt due to vibration generated when the scraper conveyor runs.

Specifically, as shown in fig. 21, in the scraper, an included angle e between an upper inclined surface of the end of the scraper and a horizontal plane is 18 °, and an included angle b between a lower inclined surface and the horizontal plane is 30 °, which can effectively reduce friction between the scraper 1100 and the chain way 1000, thereby reducing wear of the scraper 1100.

Specifically, the scraper 1100 is made of 42CrMo ultrahigh-strength steel material.

Specifically, the front end of the pressing plate chain divider 2100 is arranged in a mounting opening of a chain wheel, the upper edge of the tail of the pressing plate chain divider 2100 is provided with a first groove 2110 for clamping a pressing plate rod 2200, the lower edge of the tail of the pressing plate chain divider is provided with a second groove 2120 for clamping an attachment frame rod 2300, the position of the pressing plate chain divider is locked in a limiting mode through the pressing plate rod 2200 and the frame rod 2300, the frame rod 2300 is a detachable frame rod, replacement after abrasion of the frame rod 2300 is facilitated, due to the fact that the pressing plate rod 2200 and the frame rod 2300 are locked in a double mode, the pressing plate chain divider 2100 is better limited in the position, resonance of the pressing plate chain divider 2100 and equipment is reduced, and the occurrence rate of equipment accidents is effectively reduced.

The specific operation basic flow is as follows: when the specific embodiment of the invention starts to operate, the head 2000 and the tail 4000 start to pull the scraper 1100 chain 1200 to move, the scraper chain is smoothly separated from the sprocket through the head pressing plate chain divider 2100, the separated scraper chain enters the chain channel 1000, passes through the transition groove 3600 along with the chain channel and smoothly passes through the turntable mechanism 3000 by the guide block 3400, during right-angle turning, the chain 1200 swings due to the fact that the radius of the front side circular arc surface is larger than the radius of the chain vertical ring, centripetal force is provided for right-angle turning of the scraper 1100, the scraper turns more smoothly, returns to the chain channel 1000 from the turntable mechanism 3000 through the transition groove 3600 after turning, then enters the pressing plate chain divider 2100 located at the tail 4000 along with the movement of the chain 1200, the scraper chain is meshed with the sprocket, and returns to the head 2000 part from the scraper chain channel.

The present invention has been described in detail, and it should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

Claims

1. A quarter turn scraper machine is characterized by comprising a machine head, a middle part and a machine tail which are connected through a chain channel, wherein a scraper chain is arranged on the chain channel, the scraper chain is driven by the machine head and the machine tail to move circularly along the chain channel, the middle part is provided with a turntable mechanism for realizing the quarter turn of the scraper chain, the turntable mechanism comprises a turntable box, a turntable assembly and transition grooves, the turntable assembly is arranged in the turntable box and used for providing steering support for the scraper chain, the transition grooves are arranged at two ends of the turntable and butted with the chain channel, and the turntable assembly comprises an upper turntable and a lower turntable which rotate coaxially and provide steering support for the scraper chain; the machine head and the machine tail are respectively provided with a chain wheel for driving the scraper chain to move, a pressing plate chain divider used for realizing smooth meshing and separation of the scraper chain and the chain wheel is arranged corresponding to the chain wheel, and the pressing plate chain divider is limited through the machine frame rods and the pressing plate rods in the machine head and the machine tail.

2. The quarter turn flight according to claim 1, characterised in that guide blocks for guiding the scraper chain from the transition slot to the turntable box are provided at the interface of the two ends of the turntable box of the turntable mechanism.

3. The quarter turn flight apparatus as claimed in claim 1, wherein the turntable case includes a bottom plate and a turntable shield disposed above the turntable assembly, the bottom plate being provided at an inner peripheral edge thereof with a bolt seat for fixing the turntable shield, the turntable shield being fixedly connected to the bolt seat by a bolt, the turntable case peripheral edge being provided with a turntable shield for preventing coal from overflowing into the turntable case.

4. The quarter turn scraper conveyor according to claim 1, characterized in that the outer side of the rotary table box is provided with a movable upper edge for limiting the scraper chain, the movable upper edge is arranged on a vertical plate outside the rotary table box, the vertical plate outside the rotary table box is provided with a T-shaped groove, and the movable upper edge is fixed in the T-shaped groove through a bolt.

5. The quarter turn flight according to claim 1, wherein the turntable mechanism is provided with an upper link plate for returning the flight at the leading end of the transition groove on the entry side of the flight chain.

6. The quarter turn flight of claim 1, in which the flight chain includes a flight assembly and a chain connecting the flight assemblies, the scraper component comprises a scraper body, the scraper body comprises a connecting middle part used for being connected with the chain and action parts positioned at two sides of the connecting middle part, the bottom surface of the middle connecting part is provided with a flat ring groove for fastening a flat ring of a chain, the two sides of the bottom surface of the middle connecting part are provided with vertical ring grooves corresponding to the flat ring grooves for accommodating vertical rings of the chain and limiting the vertical rings of the chain, the middle part of the chain flat ring and the scraper body are fixedly connected through the matching of a U-shaped bolt and a locknut, the anti-loosening scraper is characterized in that an installation groove hole used for containing a locknut is formed in the middle of the scraper body connection, an anti-rotation washer used for being matched with the locknut to play a locking limiting role is arranged on the locknut, and a limiting groove used for limiting the anti-rotation washer is formed beside the installation groove hole.

7. The quarter turn scraper conveyor according to claim 6, characterized in that the middle of the flat ring groove forms a limit post for clamping the flat ring of the chain, the top end of the limit post is in butt joint with the U-shaped bolt, the front and rear sides of the limit post are both arc surfaces, and the radius of the arc surface at the front side of the limit post is larger than that at the rear side of the limit post.

8. The quarter turn flight scraper of claim 6, wherein the front side of the connecting middle portion of the scraper body is a slope that slopes downward in the direction of movement of the scraper, and the slope makes an angle of 6 degrees with the horizontal plane.

9. The quarter turn scraper conveyor according to claim 6, characterized in that the anti-rotation washer comprises a fastening part for fastening a nut and a limiting arm connected with the fastening part, the fastening part is provided with a gear ring engaged with the locknut, the locknut is provided with a tooth socket matched with the gear ring, and the front end of the limiting arm is tilted to form an L-shaped structure.

10. The quarter turn flight scraper according to claim 1, wherein the front end of the pressing plate chain splitter is arranged in the mounting opening of the chain wheel, the upper edge of the tail part of the pressing plate chain splitter is provided with a first groove for clamping the pressing plate rod, the lower edge of the tail part of the pressing plate chain splitter is provided with a second groove for clamping the frame rod of the scraper, and the position of the pressing plate chain splitter is locked by the limit of the pressing plate rod and the frame rod.