阅读说明：本技术 刮板输送机 (Scraper conveyor ) 是由 张治政 张建平 苟新运 于 2020-04-24 设计创作，主要内容包括：本发明公开了一种刮板输送机,包括机身、驱动机构、传动机构、刮料机构及张紧机构,所述张紧机构包括一组涡轮箱座及涡轮箱,涡轮箱内设蜗轮、蜗杆,涡轮与蜗杆啮合,涡轮通过键与空心涡轮轴配装,空心涡轮轴设于机尾两侧并与丝杠啮合,丝杠与牵引座固定连接,牵引座通过连接销轴与移动密封轴承座连接,移动密封轴承座分别与设于机尾两侧的导向槽配装,从动轴的两端分别安装于移动密封轴承座上。该刮板输送机对张紧机构合理布局,在机尾增加的涡轮蜗杆进行张紧,使得张紧机构更加简单、省力,较传统张紧结构受力更加合理,方便链条张紧操作,实现了不停机张紧度调节；同时降低维修操作难度,易于更换磨损部件,便于维护、检修作业,省时省力。(The invention discloses a scraper conveyor which comprises a conveyor body, a driving mechanism, a transmission mechanism, a scraping mechanism and a tensioning mechanism, wherein the tensioning mechanism comprises a group of turbine box seats and a turbine box, a worm wheel and a worm are arranged in the turbine box, the turbine is meshed with the worm, the turbine is assembled with a hollow turbine shaft through keys, the hollow turbine shaft is arranged on two sides of the conveyor tail and meshed with a lead screw, the lead screw is fixedly connected with a traction seat, the traction seat is connected with movable sealing bearing seats through a connecting pin shaft, the movable sealing bearing seats are respectively assembled with guide grooves arranged on two sides of the conveyor tail, and two ends of a driven shaft are respectively arranged on the movable sealing bearing seats. The scraper conveyor has the advantages that the tensioning mechanism is reasonably distributed, and the worm wheel and the worm are additionally arranged at the tail of the scraper conveyor for tensioning, so that the tensioning mechanism is simpler and more labor-saving, has more reasonable stress compared with the traditional tensioning structure, is convenient for chain tensioning operation, and realizes tensioning degree adjustment without stopping; meanwhile, the maintenance operation difficulty is reduced, the worn parts are easy to replace, the maintenance and overhaul operation is convenient, and time and labor are saved.)

1. The utility model provides a scraper conveyor, its characterized in that includes fuselage (1), actuating mechanism (2), drive mechanism (3), scraping mechanism (4) and straining device (5), wherein:

the machine body (1) comprises a machine head (11) and a machine tail (12), and a plurality of middle grooves (13) are connected between the machine head (11) and the machine tail (12);

the driving mechanism (2) comprises a driving motor (21) and a speed reducer (22), and the driving motor (21) is connected with the speed reducer (22) through a coupling (23);

the transmission mechanism (3) comprises a driving shaft (31) and a driven shaft (32), the driving shaft (31) is transversely installed in the machine head (11), a group of driving chain wheels (33) is assembled on the driving shaft (31), the driving chain wheels (33) are located on two sides in the machine head (11), the driving shaft (31) is connected with the power output end of the speed reducer (22), the driven shaft (32) is transversely arranged in the machine tail (12), a group of driven chain wheels (34) is assembled on the driven shaft (32), and the driven chain wheels (34) are located on two sides in the machine tail (12);

the scraping mechanism (4) comprises two scraper chains (41) and a plurality of scrapers (42), the scraper chains (41) are respectively connected between the driving shaft (31) and the driven shaft (32), and the scrapers (42) are transversely and uniformly connected between the two scraper chains (41);

the tensioning mechanism (5) comprises a group of turbine box seats (501) arranged at two ends of the rear part of the machine tail (12), a turbine box (502) is arranged on each turbine box seat (501), a hollow turbine shaft (503) is longitudinally arranged in each turbine box (502), a worm wheel (504) is assembled on each hollow turbine shaft (503) through a C-shaped key, each worm wheel (504) is engaged with a worm (505) in assembly, each worm (505) is transversely arranged at the rear part of the machine tail (12), the extending ends of the two hollow turbine shafts (503) are respectively arranged at two sides of the machine tail (12), the extending ends are assembled with a lead screw (506) through threads, the other end of the lead screw (506) is fixedly connected with a traction seat (507), the other end of the traction seat (507) is connected with a movable sealing bearing seat (508) through a connecting pin shaft, two ends of a driven shaft (32) are respectively arranged on the two movable sealing bearing seats (508), and the two movable sealing bearing seats (508) are respectively assembled with guide, the tension driving rod (510) is connected between the two worms (505), and the two worms (505) and the tension driving rod (510) are positioned on a straight line.

2. The scraper conveyor of claim 1, characterized in that strip-shaped openings are formed on both sides of the tail (12), and movable sealing mechanisms (6) are arranged on the strip-shaped openings.

3. The scraper conveyor of claim 2, wherein the movable sealing mechanism (6) comprises a set of L-shaped guide rails (61) which are arranged on the upper side and the lower side of the strip-shaped opening in parallel and oppositely, one ends of the two guide rails (61) are connected through a fixed sealing plate (62), the other ends of the two guide rails are connected through a detachable sealing plate (63), a movable sealing plate (64) is arranged between the two guide rails (61), pressing strips (65) are respectively arranged on the two sides of the movable sealing plate (64), the pressing strips (65) are connected with the guide rails (61) through bolts, an annular groove (66) is formed in the middle of the movable sealing plate (64), the driven shaft (32) penetrates through the annular groove (66) to be assembled with the movable sealing bearing seat (508), and crude oil felt is filled between the annular groove (66.

4. The scraper conveyor of claim 1, characterized in that the inner wall of the middle trough (13) is provided with a chain stopper (131).

5. The scraper conveyor of claim 1, characterized in that the scraper chain (41) comprises several chain lengths (411), adjacent chain lengths (411) being connected by a connecting ring (412), the scraper (42) being connected to the connecting ring (412).

6. The scraper conveyor of claim 5, characterized in that the connecting ring (412) comprises a C-shaped ring (412-1), the two ends of the C-shaped ring (412-1) are respectively provided with a connecting end (412-2) with a round hole, the two ends of the scraper (42) are provided with round holes, and the scraper (42) is connected between the two connecting ends (412-2) through the round holes by bolts.

7. Scraper conveyor according to claim 5, characterized in that the connecting ring (412) is provided with a scraper (413) on the side facing outwards, and the scraper (413) is perpendicular to the advancing direction of the scraper chain (41).

8. The scraper conveyor as claimed in claim 1, wherein the tension driving rod (510) comprises a main rod (510-1), a plurality of driving insertion holes (510-2) are arranged on the main rod (510-1), detachable connection sleeves (510-3) are respectively arranged at two ends of the main rod (510-1), the main rod (510-1) and the detachable connection sleeves (510-3) are fixed through a plug pin (510-4), a spline pair is arranged on the inner wall of the other end of the detachable connection sleeves (510-3), and the detachable connection sleeves (510-3) and the worm rods (505) are assembled through the spline pair.

Technical Field

The invention relates to the technical field of coal mining machinery, in particular to a scraper conveyor.

Background

Along with the uneven continuous improvement of the mechanized coal mining mechanization of China, the use of the transfer equipment of the ultralong and heavy fully mechanized coal mining working face is more and more extensive, the chain needs larger and larger pretension as a scraper conveyor of coal dressing matching equipment, the chain is gradually stretched and becomes loose under the long-time high-strength tension load, and the condition is aggravated as a chain connecting ring is gradually enlarged. Therefore, the tightness of the prior scraper conveyor needs to be adjusted regularly in the running process, otherwise, the conditions of chain jumping and chain floating are easily caused, and the traditional adjusting method is to remove a section of chain, because the chain cutting method can only remove integral multiples of chain links and cannot realize the adjustment according to the tightness of the chain in the normal running process of the scraper. Therefore, a corresponding tensioning mechanism is usually required to be arranged on the scraper conveyor.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a scraper conveyor, which has the advantages that the tensioning mechanism of the scraper conveyor is reasonably arranged, the chain tensioning operation is convenient, the non-stop tensioning degree adjustment is realized, the maintenance operation difficulty is reduced, and the maintenance and overhaul operation is convenient.

The invention provides a scraper conveyor, which comprises a conveyor body, a driving mechanism, a transmission mechanism, a scraping mechanism and a tensioning mechanism, wherein:

the machine body comprises a machine head and a machine tail, and a plurality of middle grooves are connected between the machine head and the machine tail;

the driving mechanism comprises a driving motor and a speed reducer, and the driving motor is connected with the speed reducer through a coupling;

the transmission mechanism comprises a driving shaft and a driven shaft, the driving shaft is transversely arranged in the machine head, a group of driving chain wheels are assembled on the driving shaft and located on two sides in the machine head, the driving shaft is connected with the power output end of the speed reducer, the driven shaft is transversely arranged in the machine tail, a group of driven chain wheels are assembled on the driven shaft and located on two sides in the machine tail;

the scraping mechanism comprises two scraper chains and a plurality of scrapers, the scraper chains are respectively connected between the driving shaft and the driven shaft, and the scrapers are transversely and uniformly connected between the two scraper chains;

the tensioning mechanism comprises a group of turbine box seats arranged at two ends of the rear of the tail, a turbine box is arranged on each turbine box seat, a hollow turbine shaft is longitudinally arranged in each turbine box, a worm wheel is assembled on each hollow turbine shaft through a C-shaped key and meshed with a worm, the worms are transversely arranged at the rear of the tail, the extending ends of the two hollow turbine shafts are respectively arranged at two sides of the tail, the extending ends of the two hollow turbine shafts are assembled with a lead screw through threads, the other end of the lead screw is fixedly connected with a traction seat, the other end of the traction seat is connected with movable sealing bearing seats through a connecting pin shaft, two ends of a driven shaft are respectively arranged on the two movable sealing bearing seats, the two movable sealing bearing seats are respectively assembled with guide groove driving rods arranged at two sides of the tail, tensioning rods are connected between the two worms, and the.

Preferably, strip-shaped openings are formed in two sides of the tail, and movable sealing mechanisms are arranged on the strip-shaped openings.

Preferably, the movable sealing mechanism comprises a group of L-shaped guide rails which are arranged on the upper side and the lower side of the strip-shaped opening in parallel and oppositely, one ends of the two guide rails are connected through a fixed sealing plate, the other ends of the two guide rails are connected through a detachable sealing plate, a movable sealing plate is arranged between the two guide rails, pressing strips are respectively arranged on the two sides of the movable sealing plate, the pressing strips are connected with the guide rails through bolts, an annular groove is formed in the middle of the movable sealing plate, the driven shaft penetrates through the annular groove to be assembled with the movable sealing bearing seat.

Preferably, the inner wall of the middle groove is provided with a chain limiting block.

Preferably, the scraper chain comprises a plurality of chain sections, two adjacent chain sections are connected through a connecting ring, and the scraper is connected to the connecting ring.

Preferably, the connecting ring comprises a C-shaped ring, connecting ends with round holes are respectively arranged at two ends of the C-shaped ring, round holes are arranged at two ends of the scraper, and the scraper is connected between the two connecting ends through the round holes by bolts.

Preferably, the outward side of the connecting ring is provided with a scraper, and the scraper is perpendicular to the advancing direction of the scraper chain.

Preferably, the tensioning actuating lever includes the mobile jib, is equipped with several drive jack on the mobile jib, and the mobile jib both ends are equipped with respectively can dismantle the adapter sleeve, and the mobile jib passes through the bolt with can dismantle the adapter sleeve and fix, and the other end inner wall that can dismantle the adapter sleeve is equipped with the spline pair, can dismantle the adapter sleeve and join in marriage through the spline pair with the worm.

The working principle of the invention is as follows: the scraper conveyor is additionally provided with the tensioning mechanism, the tensioning driving rod is rotated manually, the tensioning driving rod drives the worm to rotate, the worm is meshed with the worm wheel to drive the worm wheel to rotate, the worm wheel drives the hollow turbine shaft to rotate, the hollow turbine shaft drives the screw rod meshed with the hollow turbine shaft to move back and forth, the screw rod pulls the movable sealing bearing seat through the traction seat, further drives the driven shaft arranged on the movable sealing bearing seat to move back and forth, and finally the tension degree of a chain is adjusted. Meanwhile, the movable sealing plate sleeve of the movable sealing mechanism is arranged on the driven shaft, so that when the driven shaft moves, the movable sealing plate is driven to move, and good sealing effect is achieved between the driven sealing plate and the fixed sealing plate and between the driven sealing plate and the detachable sealing plate through surface contact. In the conveying process, a chain limiting block positioned on the side wall of the middle groove is used for limiting and controlling the chain; and a scraper arranged on the chain is used for cleaning materials such as coal slime adhered to the side wall.

The invention has the beneficial effects that: according to the tensioning mechanism of the scraper conveyor, the tensioning mechanism is reasonably arranged, and the worm gear and the worm are additionally arranged at the tail of the scraper conveyor for tensioning, so that the tensioning mechanism is simpler and more labor-saving, is more reasonable in stress compared with the traditional tensioning structure, facilitates the tensioning operation of a chain, and realizes the adjustment of the tensioning degree without stopping the scraper conveyor; meanwhile, the maintenance operation difficulty is reduced, the worn parts are easy to replace, and the maintenance and overhaul operation is convenient; and greatly reduces the labor intensity of workers and the working time of the workers. Secondly, when adjusting the rate of tension, the driven shaft that is located the tail removes relative tail, consequently sets up the bar hole in the tail both sides to be equipped with in bar hole department and add movable sealing mechanism, this structure has realized adjustable, the slidingtype of sealing method, can follow the axis of movement and remove in a flexible way, lets whole sealing method be in the motion state all the time and guarantees good sealed effect, makes scraper conveyor safe, environmental protection, clean, health more. In addition, the chain limiting block is additionally arranged on the side wall of the middle groove of the scraper conveyor, so that the conditions of chain jumping and chain floating of the chain are effectively prevented, and the working stability is ensured; the scraper chain structure is convenient for installation and replacement of the scraper and replacement of a damaged chain section; the scraper chain is additionally provided with the scraper, so that materials such as coal slime on the side wall and the like can be cleaned in time, and the material deposition is prevented from influencing the normal operation of the equipment; the tensioning driving rod is provided with a driving jack, and a handle is inserted into the driving jack, so that the main rod can be easily rotated, and the convenience and labor saving are realized; the mobile jib is fixed through the bolt with dismantling between the adapter sleeve, can dismantle the adapter sleeve and join in marriage through the spline width of cloth with the worm for the length of tensioning actuating lever is adjustable, the dismouting of also being convenient for simultaneously.

Drawings

FIG. 1 is a perspective view of a scraper conveyor of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a rear view of the scraper conveyor of the present invention;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 5 is a right side view of the scraper conveyor of the present invention;

fig. 6 is a cross-sectional view of fig. 5 taken along line C-C.

In the figure: the machine body 1, the machine head 11, the machine tail 12, the middle groove 13, the chain limiting block 131, the driving mechanism 2, the driving motor 21, the speed reducer 22, the coupling 23, the transmission mechanism 3, the driving shaft 31, the driven shaft 32, the driving sprocket 33, the driven sprocket 34, the scraping mechanism 4, the scraper chain 41, the chain 411, the connecting ring 412, the C-shaped ring 412-1, the connecting end 412-2, the scraper 413, the scraper 42, the tensioning mechanism 5, the turbine box seat 501, the turbine box 502, the hollow turbine shaft 503, the worm wheel 504, the worm 505, the lead screw 506, the traction seat 507, the movable sealing bearing seat 508, the guide groove 509, the tensioning driving rod 510, the main rod 510-1 and the driving jack 510-2, the detachable connecting sleeve 510-3, the movable sealing mechanism 6, the guide rail 61, the fixed sealing plate 62, the detachable sealing plate 63, the movable sealing plate 64, the pressing strip 65 and the annular groove 66.

Detailed Description

In order to make the technical scheme of the invention easier to understand, the technical scheme of the invention is clearly and completely described by adopting a mode of a specific embodiment in combination with the attached drawings.