阅读说明：本技术 一种叠垛式中部槽及使用该叠垛式中部槽的刮板输送机 (Stacking type middle groove and scraper conveyor using same ) 是由 李海平 范新民 于 2021-09-24 设计创作，主要内容包括：本发明公开了一种叠垛式中部槽及使用该叠垛式中部槽的刮板输送机。本发明的方法包括：中部槽包括上U型板和下U型板,上下叠垛焊接而成；上U型板和下U型板均为无焊缝的整体钢板,横截面呈大U型；上U型板上设有搭接结构,包括搭接口和搭接板,搭接口为在上U型板一端开的槽口,搭接板为在上U型板另一端延伸出的凸出板,凸出板的位置和尺寸与槽口相配合；底板对称固定在下U型板两外侧；销接结构包括凹端头和凸端头,凹端头和凸端头均设有销孔,凹端头开有凹形开口,凸端头的位置和尺寸与凹形开口相配合。本发明采用耐磨钢板实现对中部槽易磨损部位的全包围,提高中部槽的抗磨损能力,提高刮板输送机的使用寿命和过煤量。(The invention discloses a stacked middle trough and a scraper conveyor using the same. The method of the invention comprises the following steps: the middle groove comprises an upper U-shaped plate and a lower U-shaped plate which are stacked and welded up and down; the upper U-shaped plate and the lower U-shaped plate are both integral steel plates without welding seams, and the cross sections of the upper U-shaped plate and the lower U-shaped plate are large U-shaped; the upper U-shaped plate is provided with a lap joint structure which comprises a lap joint opening and a lap joint plate, the lap joint opening is a notch formed in one end of the upper U-shaped plate, the lap joint plate is a protruding plate extending out of the other end of the upper U-shaped plate, and the position and the size of the protruding plate are matched with the notch; the bottom plates are symmetrically fixed on two outer sides of the lower U-shaped plate; the pin joint structure comprises a concave end head and a convex end head, the concave end head and the convex end head are both provided with pin holes, the concave end head is provided with a concave opening, and the position and the size of the convex end head are matched with the concave opening. The invention adopts the wear-resistant steel plate to realize the full enclosure of the easy-to-wear part of the middle groove, improves the wear resistance of the middle groove, and prolongs the service life and the coal passing amount of the scraper conveyor.)

1. The utility model provides a fold buttress formula middle part groove carries out swing joint through overlap joint and pin junction's mode between each section middle part groove, its characterized in that: the middle part groove includes:

the upper U-shaped plate and the lower U-shaped plate are stacked up and down and welded; the upper U-shaped plate and the lower U-shaped plate are both integral steel plates without welding seams, and the cross sections of the upper U-shaped plate and the lower U-shaped plate are large U-shaped; the upper U-shaped plate is provided with a lap joint structure, the lap joint structure comprises a lap joint opening and a lap joint plate, the lap joint opening is a notch formed in one end of the upper U-shaped plate, the lap joint plate is a protruding plate extending out of the other end of the upper U-shaped plate, and the position and the size of the protruding plate are matched with the notch;

the bottom plates are symmetrically fixed on the two outer sides of the lower U-shaped plate, and the bottom surfaces of the bottom plates are flush with the bottom surface of the lower U-shaped plate;

the pin joint structure comprises a concave end head and a convex end head, both the concave end head and the convex end head are provided with pin holes, the concave end head is provided with a concave opening, the position and the size of the convex end head are matched with those of the concave opening, so that the convex end head can extend into the concave opening and the pin holes are aligned, the two groups of pin joint structures are symmetrically arranged on the two outer sides of the upper U-shaped plate and the lower U-shaped plate, and the concave end head and the convex end head are respectively provided with two ends;

and the pulling and moving seat is arranged on the outer side of the middle plate component and is welded and fixed.

2. A stacked centre channel according to claim 1, characterised in that: the upper U-shaped plate and the lower U-shaped plate are directly rolled or bent by novel wear-resistant steel plates.

3. A stacked centre channel according to claim 1, characterised in that: the thickness of the upper U-shaped plate and the lower U-shaped plate is 8-45 mm.

4. A stacked centre channel according to claim 1, characterised in that: the upper U-shaped plate and the lower U-shaped plate are fixed in a welding mode, and a welding point is arranged on the outer side of the contact position of the upper U-shaped plate and the lower U-shaped plate.

5. A stacked centre channel according to claim 1, characterised in that: the lap joint structure comprises a lap joint opening and a lap joint plate, wherein the lap joint opening is rectangular, and the opening depth is 30-50% of the plate thickness; the length of overlap joint mouth is 80~90% of last U template plate width, and its central line is located the board width central line, the width of overlap joint mouth is 2~10% of last U template plate length.

6. A stacked centre channel according to claim 1, characterised in that: the pin joint structure adopts a dumbbell pin for connection.

7. A stacked centre channel according to claim 1, characterised in that: and the welding point of the bottom plate and the lower U-shaped plate is positioned in the gap between the bottom plate and the lower U-shaped plate.

8. A stacked centre channel according to claim 1, characterised in that: the middle plate component further comprises 4-8 rib plates, and the rib plates are uniformly and symmetrically welded and fixed on the outer side of the middle plate component.

9. A scraper conveyor is characterized in that: the scraper conveyor is provided with the stacked middle trough as claimed in any one of claims 1-8.

Technical Field

The invention belongs to the technical field of scraper conveyors, and particularly relates to a stacked middle trough and a scraper conveyor using the stacked middle trough.

Background

The middle groove is a channel for running of a scraper chain of the scraper conveyor and a track for walking and guiding of the coal mining machine, and is mutually supported by the hydraulic support, so that the pushing of the scraper conveyor and the pulling operation of the hydraulic support are realized, the middle groove is a key part influencing the service performance and the service life of the scraper conveyor, and the quality of the performance of the middle groove is directly related to key indexes such as the reliability of the whole set of conveyor. The failure of the middle groove is mostly caused by excessive wear or breakage of the middle groove, and the most serious positions of the middle groove wear are the middle plate and the ledge. Currently, the middle trough is divided into a rolled ledge middle trough and a cast ledge middle trough. The rolling ledge middle groove is multipurpose for small and medium sized conveyors.

In the prior art, the middle groove is made of a tough material and is welded with a wear-resistant material at a severely worn position, so that the requirements of different positions of the middle groove are met and the quality of the middle groove is improved. In the middle groove quality improvement process, along with the application of the wear-resistant material, the service lives of the ledge and the middle plate alternately increase, and the overhaul period is influenced to a certain extent; and the middle groove is easy to wear, so that the welding seam can not be avoided, and the middle groove is easy to crack.

If the authorization notice number is CN 103332443B, the proposal adopts a left and right cast-weld type structure that a shovel board ledge, a baffle ledge, a bottom plate and a middle plate are welded in sequence, and the shovel board ledge, the baffle ledge, the bottom plate and the middle plate are cast, in the proposal, the contact part of the middle groove and materials has obvious welding seams, which is easy to cause abrasion and even cracking and affects the service life of the middle groove and the scraper conveyor; moreover, the scheme adopts common casting materials, and has low wear resistance.

In order to solve the technical problems, the invention provides a stacked middle trough and a scraper conveyor using the stacked middle trough.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a stacked middle trough, which uses a wear-resistant steel plate to completely surround the easy-to-wear part of the middle trough and improves the wear resistance of the middle trough; the novel wear-resistant steel plate is directly rolled or bent, the original cast ledge is omitted, the middle plate is of a double-layer large U-shaped structure, a welding seam is positioned at a position which is not worn and has small load, and the maintenance rate of the middle groove is reduced, so that the service life of the whole scraper conveyor is prolonged, and the coal passing amount is increased; the upper structure and the lower structure are used, so that the acting direction of the pushing force is perpendicular to the welding direction, and the problem of underground open welding of the middle groove is solved.

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

a pile-up type middle trough is characterized in that each section of middle trough is movably connected in a lap joint and pin connection mode;

the middle part groove includes:

the upper U-shaped plate and the lower U-shaped plate are stacked up and down and welded; the upper U-shaped plate and the lower U-shaped plate are both integral steel plates without welding seams, and the cross sections of the upper U-shaped plate and the lower U-shaped plate are large U-shaped; the upper U-shaped plate is provided with a lap joint structure, the lap joint structure comprises a lap joint opening and a lap joint plate, the lap joint opening is a notch formed in one end of the upper U-shaped plate, the lap joint plate is a protruding plate extending out of the other end of the upper U-shaped plate, and the position and the size of the protruding plate are matched with the notch;

the bottom plates are symmetrically fixed on the two outer sides of the lower U-shaped plate, and the bottom surfaces of the bottom plates are flush with the bottom surface of the lower U-shaped plate;

the pin joint structure comprises a concave end head and a convex end head, both the concave end head and the convex end head are provided with pin holes, the concave end head is provided with a concave opening, the position and the size of the convex end head are matched with those of the concave opening, so that the convex end head can extend into the concave opening and the pin holes are aligned, the two groups of pin joint structures are symmetrically arranged on the two outer sides of the upper U-shaped plate and the lower U-shaped plate, and the concave end head and the convex end head are respectively provided with two ends;

and the pulling and moving seat is arranged on the outer side of the middle plate component and is welded and fixed.

Preferably, go up the U template and adopt novel wear-resisting steel sheet directly to roll or bend and form down, improve the wearability, improve the life of device, guarantee the stability of device.

Preferably, the plate thickness of the upper U-shaped plate and the lower U-shaped plate is 8-45 mm.

Preferably, go up the U template and adopt welding mode fixed with lower U template, the welding point is in the outside of both contact positions, realizes the full encirclement of the easy wearing and tearing position of middle part groove, improves the ability of resistance to wear of middle part groove, and the welding seam is in the position that does not wear and tear, the load is little, reduces the maintenance rate in middle part groove to improve whole scraper conveyor's life and coal passing.

Preferably, the lapping structure comprises a lapping opening and a lapping plate, wherein the lapping opening is rectangular, and the opening depth is 30-50% of the plate thickness; the length of overlap joint mouth is 80~90% of last U template plate width, and its central line is located the board width central line, the width of overlap joint mouth is 2~10% of last U template plate length.

Preferably, the pin joint structure is connected by a dumbbell pin.

Preferably, the welding point of the bottom plate and the lower U-shaped plate is located in a gap between the bottom plate and the lower U-shaped plate, the welding point is located at a position which is not abraded and has small load, the maintenance rate of the middle groove is reduced, the service life of the device is prolonged, and the stability of the device is guaranteed.

Preferably, the middle plate assembly further comprises 4-8 rib plates, the rib plates are uniformly and symmetrically welded and fixed on the outer side of the middle plate assembly, the strength of the middle plate assembly is enhanced, the stability of the device is improved, and the service life of the device is prolonged.

The invention also provides a scraper conveyor using the stacking type middle groove, and the stacking type middle groove has the technical effects, so that the scraper conveyor using the stacking type middle groove also has corresponding technical effects.

Specifically, when using and folding buttress formula middle part groove, need link together each section and fold buttress formula middle part groove through overlap joint and pin junction's mode, the overlap joint mouth of this festival and the overlap joint board overlap joint of last festival, the overlap joint board of this festival and the overlap joint mouth overlap joint of next festival, realize 3~5 horizontal bending or vertical bending according to operating condition, the concave end of this festival and the convex end of last festival adopt the dumbbell pin to connect, the convex end of this festival and the concave end of next festival adopt the dumbbell pin to be connected, guarantee that the working face in middle part groove is complete level and smooth, through multisection overlap joint and pin junction, thereby form scraper conveyor's fuselage.

The invention has the beneficial effects that:

the device is formed by welding the upper U-shaped plate and the lower U-shaped plate in an up-and-down stacked manner, the welding point is positioned on the outer side of the contact position of the upper U-shaped plate and the lower U-shaped plate, so that the full enclosure of the easily worn part of the middle groove is realized, the abrasion resistance of the middle groove is improved, the welding line is positioned at the part which is not worn and has small load, the maintenance rate of the middle groove is reduced, and the service life and the coal passing amount of the whole scraper conveyor are prolonged; the upper and lower structures are used, so that the acting direction of the pushing force is vertical to the welding direction, and the problem of underground open welding of the middle groove is solved;

the upper U-shaped plate and the lower U-shaped plate in the device are directly rolled or bent by novel wear-resistant steel plates, so that the device has good manufacturability and is convenient for large-scale production; the wear resistance is improved, the service life of the device is prolonged, and the stability of the device is ensured;

the lap joint opening of the upper U-shaped plate and the lap joint plate in the device are movably connected in a lap joint mode, so that the stability of the device is improved, and coal leakage is prevented;

the welding point of bottom plate and lower U template is located the bottom plate and the space between the lower U template in this device, and the welding seam is in the position that does not wear and tear, load are little, reduces the maintenance rate in middle part groove, improves the life of device, guarantees the stability of device.

By adopting the scheme, the full enclosure of the easily worn part of the middle groove can be realized, and the abrasion resistance of the middle groove is improved; the novel wear-resistant steel plate is directly rolled or bent, a ledge is omitted, the middle plate is of a double-layer large U-shaped structure, a welding seam is positioned at a position which is not worn and has small load, and the maintenance rate of a middle groove is reduced, so that the service life of the whole scraper conveyor is prolonged, and the coal passing amount is increased; the upper structure and the lower structure are used, so that the acting direction of the pushing force is perpendicular to the welding direction, and the problem of underground open welding of the middle groove is solved.

Drawings

To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic front view of a center tank.

Fig. 2 is a right structural view of the middle tank.

Fig. 3 is a schematic top view of the center tank.

Fig. 4 is a schematic three-view structure diagram of an upper U-shaped plate.

In the figure, 1-concave end, 2-rib plate, 3-pulling seat, 4-convex end, 5-upper U-shaped plate, 6-lower U-shaped plate, 7-bottom plate, 5-1-lap joint and 5-2-lap joint.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

As shown in fig. 1-4, a stackable tundish comprising:

a pile-up type middle trough is characterized in that each section of middle trough is movably connected in a lap joint and pin connection mode;

the middle part groove includes:

the upper U-shaped plate 5 and the lower U-shaped plate 6 are formed by stacking and welding up and down; the upper U-shaped plate 5 and the lower U-shaped plate 6 are both integral steel plates without welding seams, and the cross sections of the upper U-shaped plate and the lower U-shaped plate are large U-shaped; the upper U-shaped plate 5 is provided with a lap joint structure, the lap joint structure comprises a lap joint opening 5-1 and a lap joint plate 5-2, the lap joint opening 5-1 is a notch formed in one end of the upper U-shaped plate, the lap joint plate 5-2 is a protruding plate extending out of the other end of the upper U-shaped plate, and the position and the size of the protruding plate are matched with the notch;

the bottom plates 7 are symmetrically fixed on two outer sides of the lower U-shaped plate 6, and the bottom surface of each bottom plate 7 is flush with the bottom surface of the lower U-shaped plate 6;

the pin joint structure comprises a concave end head 1 and a convex end head 4, both the concave end head 1 and the convex end head 4 are provided with pin holes, the concave end head 1 is provided with a concave opening, the position and the size of the convex end head 4 are matched with the concave opening, so that the convex end head 1 can extend into the concave opening and the pin holes are aligned, the two groups of pin joint structures are symmetrically arranged on the two outer sides of the upper U-shaped plate 5 and the lower U-shaped plate 6, and the concave end head 1 and the convex end head 4 are respectively provided with two ends;

pull and move seat 3, it sets up in the outside of medium plate subassembly to pull to move seat 3, welded fastening.

Preferably, go up U template 5 and lower U template 6 and adopt novel wear-resisting steel sheet directly to roll or bend and form, improve the wearability, improve the life of device, guarantee the stability of device.

Preferably, the thickness of the upper U-shaped plate 5 and the lower U-shaped plate 6 is 8-45 mm.

Preferably, the upper U-shaped plate 5 and the lower U-shaped plate 6 are fixed in a welding mode, the welding points are arranged on the outer sides of the contact positions of the upper U-shaped plate and the lower U-shaped plate, the full surrounding of the easy-to-wear part of the middle groove is achieved, the abrasion resistance of the middle groove is improved, the welding lines are located at the positions which are not worn and have small loads, the maintenance rate of the middle groove is reduced, and therefore the service life and the coal passing amount of the whole scraper conveyor are prolonged.

Preferably, the lapping structure comprises a lapping opening 5-1 and a lapping plate 5-2, wherein the lapping opening 5-1 is rectangular, and the opening depth is 30-50% of the plate thickness; the length of the overlapping opening 5-1 is 80-90% of the width of the upper U-shaped plate 5, the center line of the overlapping opening is located on the center line of the width of the upper U-shaped plate, and the width of the overlapping opening 5-1 is 2-10% of the length of the upper U-shaped plate.

Preferably, the pin joint structure is connected by a dumbbell pin.

Preferably, the welding point of the bottom plate 7 and the lower U-shaped plate 6 is located in a gap between the bottom plate 7 and the lower U-shaped plate 6, the welding line is located at a position which is not abraded and has a small load, the maintenance rate of the middle groove is reduced, the service life of the device is prolonged, and the stability of the device is ensured.

Preferably, the middle plate assembly further comprises 4-8 rib plates 2, the rib plates 2 are uniformly and symmetrically welded and fixed on the outer side of the middle plate assembly, the strength of the middle plate assembly is enhanced, the stability of the device is improved, and the service life of the device is prolonged.

The invention also provides a scraper conveyor using the stacking type middle groove, and the stacking type middle groove has the technical effects, so that the scraper conveyor using the stacking type middle groove also has corresponding technical effects.

Specifically, when the stacking type middle grooves are used, all the stacking type middle grooves are required to be connected together in a lap joint and pin connection mode, the lap joint opening 5-1 of the section is lapped with the lap joint plate 5-2 of the previous section, the lap joint plate 5-2 of the section is lapped with the lap joint opening 5-1 of the next section, 3-5-degree horizontal bending or vertical bending is achieved according to actual working conditions, the concave end 1 of the section and the convex end 4 of the previous section are connected through dumbbell pins, the convex end 4 of the section and the concave end 1 of the next section are connected through dumbbell pins, the working face of the middle groove is guaranteed to be complete and smooth, and the scraper conveyor body is formed through multi-section lap joint and pin connection.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.