Adjustable Deviation Belt Conveyor Self-Shifting Tail

Abstract

An adjustable offset type belt conveyor self - moving tailstock is disclosed, which includes a tailstock, a headstock, an intermediate frame, and a track. Lifting oil cylinder assemblies are arranged on both sides of the tailstock, the headstock, and the intermediate frame. Pushing oil cylinders and offset adjusting oil cylinders are provided on both sides of the tailstock and the headstock. The lifting oil cylinder assemblies on both sides of the tailstock and the headstock include cylinder sleeve assemblies and lifting oil cylinders. The cylinder sleeve assembly includes a cylinder sleeve, an offset adjusting oil cylinder hinge ear, a pushing oil cylinder hinge ear, a web plate, and a hinge. One end of the offset adjusting oil cylinders on both sides of the tailstock is hinged to the offset adjusting oil cylinder hinge ear, and the other end is hinged to the tailstock. One end of the offset adjusting oil cylinders on both sides of the headstock is hinged to the offset adjusting oil cylinder hinge ear, and the other end is hinged to the headstock. One end of the pushing oil cylinders on both sides of the tailstock is hinged to the pushing oil cylinder hinge ear, and the other end is hinged to a fixed block on the track. One end of the pushing oil cylinders on both sides of the headstock is hinged to the pushing oil cylinder hinge ear, and the other end is hinged to a fixed block on the track. The structure of the present invention is simple and compact, the offset adjustment is convenient and fast, and the overall height of the self - moving tailstock can be reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of underground coal mine transportation machinery, and more specifically, relates to an adjustable deviation belt conveyor self-shifting tail. Background Art

[0002] The self-shifting tail for belt conveyor is the main transportation equipment for the operation of the crossheading in the fully mechanized coal mining face. It is installed between the head of the transfer machine and the tail of the belt conveyor, and the head of the transfer machine is lapped on the body guide rail of the self-shifting tail. Coal is unloaded onto the self-shifting tail through the head of the transfer machine and then transferred to the belt conveyor for conveying to the ground. In addition, the self-shifting tail can also be installed in the supporting part of the driving roadway.

[0003] At present, most of the self-shifting tails on the market do not have the deviation adjustment function. In this way, during the coal transportation process, when the belt deviates, it cannot be directly adjusted and can only be adjusted by stopping the machine, resulting in low production efficiency. Even if some self-shifting tails have the deviation adjustment function, they also adopt the deviation adjustment method of overall bottom penetration to achieve the deviation adjustment function. This method has a complex structure, high cost, small deviation adjustment range, and is inconvenient for installation and maintenance. In particular, the overall height of the machine will increase, making it difficult to adapt to the environment with relatively strict requirements for the height space in the underground coal mine. Summary of the Invention

[0004] In order to solve the above problems existing in the prior art, the present invention provides an adjustable deviation belt conveyor self-shifting tail, including a tail frame, a head frame, an intermediate frame connected between the tail frame and the head frame, and tracks arranged under the tail frame, the intermediate frame and the head frame. On both sides of one end of the tail frame far from the intermediate frame, there are first height-adjusting oil cylinder assemblies. On both sides of one end of the head frame far from the intermediate frame, there are second height-adjusting oil cylinder assemblies. On both sides of one end of the head frame close to the intermediate frame, there are third height-adjusting oil cylinder assemblies. On both sides of the intermediate frame, there are fourth height-adjusting oil cylinder assemblies. On both sides of one end of the tail frame far from the intermediate frame, there are first pushing oil cylinders. On both sides of one end of the head frame far from the intermediate frame, there are second pushing oil cylinders. It is characterized in that on both sides of the tail frame, there are first deviation-adjusting oil cylinders, and on both sides of the head frame, there are second deviation-adjusting oil cylinders, wherein:

[0005] The first height-adjusting oil cylinder assembly includes a first cylinder sleeve assembly and a first height-adjusting oil cylinder. The first cylinder sleeve assembly is sleeved on the outer periphery of the first height-adjusting oil cylinder. The first cylinder sleeve assembly includes a first cylinder sleeve, a first deviation-adjusting oil cylinder hinge ear arranged on one side of the first cylinder sleeve, a first pushing oil cylinder hinge ear arranged on the other side of the first cylinder sleeve, a first web plate arranged on the side surface of the first cylinder sleeve, and a first hinge arranged on the end surface of the first web plate. The first height-adjusting oil cylinder is installed on the inner periphery of the first cylinder sleeve in a clearance fit manner. The first cylinder sleeve assembly is hinged to the tailstock through the first web plate and the first hinge;

[0006] The second height-adjusting oil cylinder assembly includes a second cylinder sleeve assembly and a second height-adjusting oil cylinder. The second cylinder sleeve assembly is sleeved on the outer periphery of the second height-adjusting oil cylinder. And the second cylinder sleeve assembly includes a second cylinder sleeve, a second deviation-adjusting oil cylinder hinge ear arranged on one side of the second cylinder sleeve, a second web plate arranged on the side surface of the second cylinder sleeve, and a second hinge arranged on the end surface of the second web plate. The second height-adjusting oil cylinder is installed on the inner periphery of the second cylinder sleeve in a clearance fit manner. The second cylinder sleeve assembly is hinged to the headstock through the second web plate and the second hinge;

[0007] The third height-adjusting oil cylinder assembly includes a third cylinder sleeve assembly and a third height-adjusting oil cylinder. The third cylinder sleeve assembly is sleeved on the outer periphery of the third height-adjusting oil cylinder. And the third cylinder sleeve assembly includes a third cylinder sleeve, a second pushing oil cylinder hinge ear arranged on one side of the third cylinder sleeve, a third web plate arranged on the side surface of the third cylinder sleeve, and a third hinge arranged on the end surface of the third web plate. The third height-adjusting oil cylinder is installed on the inner periphery of the third cylinder sleeve in a clearance fit manner. The third cylinder sleeve assembly is hinged to the headstock through the third web plate and the third hinge;

[0008] One end of the first deviation-adjusting oil cylinder is hinged to the first deviation-adjusting oil cylinder hinge ear, and the other end of the first deviation-adjusting oil cylinder is hinged to the tailstock. One end of the second deviation-adjusting oil cylinder is hinged to the second deviation-adjusting oil cylinder hinge ear, and the other end of the second deviation-adjusting oil cylinder is hinged to the headstock;

[0009] One end of the first pushing oil cylinder is hinged to the first pushing oil cylinder hinge ear, and the other end of the first pushing oil cylinder is hinged to a first fixing block installed on the track. One end of the second pushing oil cylinder is hinged to the second pushing oil cylinder hinge ear, and the other end of the second pushing oil cylinder is hinged to a second fixing block installed on the track.

[0010] Further, in the above-mentioned adjustable deviation belt conveyor self-shifting tailstock, the fourth height-adjusting oil cylinder assembly includes a fourth cylinder sleeve assembly and a fourth height-adjusting oil cylinder. The fourth cylinder sleeve assembly is sleeved on the outer periphery of the fourth height-adjusting oil cylinder. The fourth cylinder sleeve assembly includes a fourth cylinder sleeve, a fourth web plate arranged on the side surface of the fourth cylinder sleeve, and a fourth hinge arranged on the end surface of the fourth web plate. The fourth height-adjusting oil cylinder is installed on the inner periphery of the fourth cylinder sleeve in a clearance fit manner. The fourth cylinder sleeve assembly is hinged to the intermediate frame through the fourth web plate and the fourth hinge.

[0011] Further, in the above-mentioned adjustable deviation belt conveyor self-shifting tailstock:

[0012] The first height-adjusting oil cylinder assembly further includes a first bushing, and the first bushing is installed at the top of the first cylinder sleeve of the first cylinder sleeve assembly;

[0013] The second height-adjusting oil cylinder assembly further includes a second bushing, and the second bushing is installed at the top of the second cylinder sleeve of the second cylinder sleeve assembly;

[0014] The third height-adjusting oil cylinder assembly further includes a third bushing, and the third bushing is installed at the top of the third cylinder sleeve of the third cylinder sleeve assembly;

[0015] The fourth height-adjusting oil cylinder assembly further includes a fourth bushing, and the fourth bushing is installed at the top of the fourth cylinder sleeve of the fourth cylinder sleeve assembly.

[0016] Further, in the above-mentioned adjustable deviation belt conveyor self-shifting tailstock:

[0017] The first height-adjusting oil cylinder assembly further includes a first pin shaft. Hinge ears and mating hinges for hinging with the first hinge on the first web plate are provided on both side surfaces of the tailstock. The first pin shaft vertically penetrates through the mating hinge on the tailstock and the first hinge on the first web plate;

[0018] The second height-adjusting oil cylinder assembly further includes a second pin shaft. Hinge ears and mating hinges for hinging with the second hinge on the second web plate are provided on both side surfaces of the headstock. The second pin shaft vertically penetrates through the mating hinge on the headstock and the second hinge on the second web plate;

[0019] The third height-adjusting oil cylinder assembly further includes a third pin shaft. Hinge ears and mating hinges for hinging with the third hinge on the third web plate are provided on both side surfaces of the headstock. The third pin shaft vertically penetrates through the mating hinge on the headstock and the third hinge on the third web plate;

[0020] The fourth height-adjusting oil cylinder assembly further includes a fourth pin shaft. Hinged ears and mating hinges that are hinged to the fourth hinges on the fourth web plate are provided on both side surfaces of the intermediate frame. The fourth pin shaft vertically penetrates the mating hinge on the intermediate frame and the fourth hinge on the fourth web plate.

[0021] Further, in the above-mentioned self-propelled tail of the adjustable deviation belt conveyor, the first web plate, the second web plate, the third web plate, and the fourth web plate are special-shaped structures that avoid the bottom rollers.

[0022] Further, in the above-mentioned self-propelled tail of the adjustable deviation belt conveyor:

[0023] One end of the first pushing oil cylinder that is hinged to the hinged ear of the first pushing oil cylinder is provided with a first hinged ear, and a spherical plain bearing is provided at the first hinged ear;

[0024] One end of the second pushing oil cylinder that is hinged to the hinged ear of the second pushing oil cylinder is provided with a second hinged ear, and a spherical plain bearing is provided at the second hinged ear.

[0025] The self-propelled tail of the adjustable deviation belt conveyor of the present invention has the following advantages and beneficial effects:

[0026] 1. Height-adjusting oil cylinders are provided on both sides of the tail frame, the intermediate frame, and the head frame. Deviation-adjusting oil cylinders and pushing oil cylinders are provided on both sides of the tail frame and the head frame. Thus, convenient, fast, and accurate walking and deviation adjustment of the whole machine can be realized. At the same time, since deviation-adjusting oil cylinders and pushing oil cylinders are not provided on both sides of the intermediate frame as in the prior art, the structural complexity can be effectively reduced and the cost can be saved;

[0027] 2. The self-propelled tail can be conveniently self-adjusted for lateral deviation, has the advantages of simple and compact structure, convenient and fast deviation adjustment, safety and reliability, and can minimize the overall height of the self-propelled tail. It can adapt to various working conditions with strict dimensional requirements, especially has good adaptability to the occasion with a lower coal seam, and has unique advantages for the situation with a lower roadway height. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0029] Figure 1 It is a schematic diagram of the overall structure of the self-propelled tail of the adjustable deviation belt conveyor of the present invention;

[0030] Figure 2 Schematic diagram of the structure of the tail frame of the adjustable deviation belt conveyor self-shifting tailstock of the present invention;

[0031] Figure 3 Along Figure 2 Partial view in the direction of A in

[0032] Figure 4 Partial top view of the tail frame of the adjustable deviation belt conveyor self-shifting tailstock of the present invention;

[0033] Figure 5 Partial top view of the intermediate frame of the adjustable deviation belt conveyor self-shifting tailstock of the present invention;

[0034] Figure 6 Schematic diagram of the structure of the first cylinder sleeve assembly of the adjustable deviation belt conveyor self-shifting tailstock of the present invention, where (b) is the side view of (a);

[0035] Figure 7 Schematic diagram of the structure of the second cylinder sleeve assembly of the adjustable deviation belt conveyor self-shifting tailstock of the present invention;

[0036] Figure 8 Schematic diagram of the structure of the third cylinder sleeve assembly of the adjustable deviation belt conveyor self-shifting tailstock of the present invention.

[0037] Explanation of reference numerals:

[0038] 1 - First deviation adjustment oil cylinder, 2 - First height adjustment oil cylinder assembly, 3 - Tail frame, 5 - First pushing oil cylinder, 21 - First cylinder sleeve assembly, 22 - First height adjustment oil cylinder, 23 - First bushing, 24 - First pin shaft, 211 - First deviation adjustment oil cylinder hinge ear, 212 - First cylinder sleeve, 213 - First pushing oil cylinder hinge ear, 214 - First hinge, 215 - First web plate, 51 - Spherical plain bearing;

[0039] 4 - Rail, 41 - First fixing block, 42 - Second fixing block;

[0040] 6 - Intermediate frame, 61 - Fourth height adjustment oil cylinder assembly, 611 - Fourth cylinder sleeve, 612 - Fourth hinge, 613 - Fourth web plate;

[0041] 7 - Head frame, 71 - Second deviation adjustment oil cylinder, 72 - Second height adjustment oil cylinder assembly, 72′ - Third height adjustment oil cylinder assembly, 73 - Second pushing oil cylinder, 721 - Second deviation adjustment oil cylinder hinge ear, 722 - Second cylinder sleeve, 723 - Second hinge, 724 - Second web plate, 722′ - Third cylinder sleeve, 723′ - Third hinge, 724′ - Third web plate, 725 - Second pushing oil cylinder hinge ear. Detailed implementation manners

[0042] To make the objectives, technical solutions and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions of the present invention in conjunction with specific embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts fall within the scope of protection of the present invention.

[0043] As Figures 1 to 8 shown, the adjustable offset belt conveyor self-shifting tail frame of the present invention includes a tail frame 3, a head frame 7, an intermediate frame 6 that is a rigid body as a whole and is connected between the tail frame 3 and the head frame 7, and tracks 4 provided below the tail frame 3, the intermediate frame 6 and the head frame 7. On both sides of one end of the tail frame 3 far from the intermediate frame 6, there are first height-adjusting oil cylinder assemblies 2. On both sides of one end of the head frame 7 far from the intermediate frame 6, there are second height-adjusting oil cylinder assemblies 72. On both sides of one end of the head frame 7 close to the intermediate frame 6, there are third height-adjusting oil cylinder assemblies 72'. On both sides of the intermediate frame 6, there are fourth height-adjusting oil cylinder assemblies 61. On both sides of one end of the tail frame 3 far from the intermediate frame 6, there are first offset-adjusting oil cylinders 1. On both sides of one end of the head frame 7 far from the intermediate frame 6, there are second offset-adjusting oil cylinders 71. On both sides of the tail frame 3, there are first pushing oil cylinders 5. On both sides of the head frame 7, there are second pushing oil cylinders 73.

[0044] The first height-adjusting oil cylinder assembly 2 includes a first cylinder sleeve assembly 21 and a first height-adjusting oil cylinder 22. The first cylinder sleeve assembly 21 is sleeved on the outer periphery of the first height-adjusting oil cylinder 22. The first cylinder sleeve assembly 21 includes a first cylinder sleeve 212, a first offset-adjusting oil cylinder hinge ear 211 provided on one side of the first cylinder sleeve 212, a first pushing oil cylinder hinge ear 213 provided on the other side of the first cylinder sleeve 212, a first web plate 215 provided on the side surface of the first cylinder sleeve 212, and a first hinge 214 provided on the end surface of the first web plate 215. The first height-adjusting oil cylinder 22 is installed in the inner periphery of the first cylinder sleeve 212 in a clearance fit manner, so that the first height-adjusting oil cylinder 22 can rotate relative to the first cylinder sleeve 212. The first cylinder sleeve assembly 21 is hinged to the tail frame 3 through the first web plate 215 and the first hinge 214.

[0045] The structure of the second height-adjusting oil cylinder assembly 72 is similar to that of the first height-adjusting oil cylinder assembly 2, including a second cylinder sleeve assembly and a second height-adjusting oil cylinder. The second cylinder sleeve assembly is sleeved on the outer periphery of the second height-adjusting oil cylinder, and the second cylinder sleeve assembly includes a second cylinder sleeve 722, a second offset oil cylinder hinge ear 721 provided on one side of the second cylinder sleeve 722, a second web plate 724 provided on the side surface of the second cylinder sleeve 722, and a second hinge 723 provided on the end surface of the second web plate 724. The second height-adjusting oil cylinder is installed on the inner periphery of the second cylinder sleeve 722 in a clearance fit manner, so that the second height-adjusting oil cylinder can rotate relative to the second cylinder sleeve 722. The second cylinder sleeve assembly is hinged to the headstock 7 through the second web plate 724 and the second hinge 723. The difference between the second height-adjusting oil cylinder assembly 72 and the first height-adjusting oil cylinder assembly 2 is that there is no push oil cylinder hinge ear provided in the second height-adjusting oil cylinder assembly 72.

[0046] The structure of the third height-adjusting oil cylinder assembly 72' is similar to that of the first height-adjusting oil cylinder assembly 2, including a third cylinder sleeve assembly and a third height-adjusting oil cylinder. The third cylinder sleeve assembly is sleeved on the outer periphery of the third height-adjusting oil cylinder, and the third cylinder sleeve assembly includes a third cylinder sleeve 722', a second push oil cylinder hinge ear 725 provided on one side of the third cylinder sleeve 722', a third web plate 724' provided on the side surface of the third cylinder sleeve 722', and a third hinge 723' provided on the end surface of the third web plate 724'. The third height-adjusting oil cylinder is installed on the inner periphery of the third cylinder sleeve 722' in a clearance fit manner, so that the third height-adjusting oil cylinder can rotate relative to the third cylinder sleeve 722'. The third cylinder sleeve assembly is hinged to the headstock 7 through the third web plate 724' and the third hinge 723'. The difference between the third height-adjusting oil cylinder assembly 72' and the first height-adjusting oil cylinder assembly 2 is that there is no offset oil cylinder hinge ear provided in the third height-adjusting oil cylinder assembly 72'.

[0047] The fourth height-adjusting oil cylinder assembly 61 includes a fourth cylinder sleeve assembly and a fourth height-adjusting oil cylinder. The fourth cylinder sleeve assembly is sleeved on the outer periphery of the fourth height-adjusting oil cylinder, and the fourth cylinder sleeve assembly includes a fourth cylinder sleeve 611, a fourth web plate 613 provided on the side surface of the fourth cylinder sleeve 611, and a fourth hinge 612 provided on the end surface of the fourth web plate 613. The fourth height-adjusting oil cylinder is installed on the inner periphery of the fourth cylinder sleeve 611 in a clearance fit manner, so that the fourth height-adjusting oil cylinder can rotate relative to the fourth cylinder sleeve 611. The fourth cylinder sleeve assembly is hinged to the intermediate frame 6 through the fourth web plate 613 and the fourth hinge 612.

[0048] One end of the first offset oil cylinder 1 is hinged to the first offset oil cylinder hinge ear 211 of the first cylinder sleeve assembly 21 in the first height-adjusting oil cylinder assembly 2, and the other end is hinged to the tailstock 3. Similarly, one end of the second offset oil cylinder 71 is hinged to the second offset oil cylinder hinge ear 721 of the second cylinder sleeve assembly in the second height-adjusting oil cylinder assembly 72, and the other end is hinged to the headstock 7.

[0049] One end of the first pushing oil cylinder 5 is hinged to the first pushing oil cylinder hinge ear 213 of the first cylinder sleeve assembly 21 in the first height-adjusting oil cylinder assembly 2, and the other end is hinged to the first fixing block 41 installed on the track 4. Similarly, one end of the second pushing oil cylinder 73 is hinged to the second pushing oil cylinder hinge ear 725 of the third cylinder sleeve assembly in the third height-adjusting oil cylinder assembly 72', and the other end is hinged to the second fixing block 42 installed on the track 4.

[0050] As a specific implementation manner, the first height-adjusting oil cylinder assembly 2 further includes a first bushing 23, and the first bushing 23 is installed on the top of the first cylinder sleeve 212 of the first cylinder sleeve assembly 21 to prevent the top from bending when the first height-adjusting oil cylinder 22 is stressed, thereby improving the stress condition and prolonging the service life.

[0051] Similarly, the second height-adjusting oil cylinder assembly 72 further includes a second bushing, and the second bushing is installed on the top of the second cylinder sleeve 722 of the second cylinder sleeve assembly to prevent the top from bending when the second height-adjusting oil cylinder is stressed, thereby improving the stress condition and prolonging the service life; the third height-adjusting oil cylinder assembly 72' further includes a third bushing, and the third bushing is installed on the top of the third cylinder sleeve 722' of the third cylinder sleeve assembly to prevent the top from bending when the third height-adjusting oil cylinder is stressed, thereby improving the stress condition and prolonging the service life; the fourth height-adjusting oil cylinder assembly 61 further includes a fourth bushing, and the fourth bushing is installed on the top of the fourth cylinder sleeve 611 of the fourth cylinder sleeve assembly to prevent the top from bending when the fourth height-adjusting oil cylinder is stressed, thereby improving the stress condition and prolonging the service life.

[0052] As a specific implementation manner, the first height-adjusting oil cylinder assembly 2 further includes a first pin 24. Hinge ears and mating hinges hinged to the first hinge 214 on the first web plate 215 are provided on both side surfaces of the tailstock 3. The first pin 24 vertically penetrates through the mating hinge on the tailstock 3 and the first hinge 214 on the first web plate 215, whereby the first cylinder sleeve assembly 21 of the first height-adjusting oil cylinder assembly 2 is hinged to the tailstock 3 and ensures flexible rotation.

[0053] Similarly, the second high-lift cylinder assembly 72 further includes a second pin shaft. Hinged ears and mating hinges that are hinged to the second hinge 723 on the second web plate 724 are provided on both side surfaces of the headstock 7. The second pin shaft vertically penetrates through the mating hinge on the headstock 7 and the second hinge 723 on the second web plate 724. Thus, the second cylinder sleeve assembly of the second high-lift cylinder assembly 72 is hinged to the headstock 7 and ensures flexible rotation; the third high-lift cylinder assembly 72' further includes a third pin shaft. Hinged ears and mating hinges that are hinged to the third hinge 723' on the third web plate 724' are provided on both side surfaces of the headstock 7. The third pin shaft vertically penetrates through the mating hinge on the headstock 7 and the third hinge 723' on the third web plate 724'. Thus, the third cylinder sleeve assembly of the third high-lift cylinder assembly 72' is hinged to the headstock 7 and ensures flexible rotation; the fourth high-lift cylinder assembly 61 further includes a fourth pin shaft. Hinged ears and mating hinges that are hinged to the fourth hinge 612 on the fourth web plate 613 are provided on both side surfaces of the intermediate frame 6. The fourth pin shaft vertically penetrates through the mating hinge on the intermediate frame 6 and the fourth hinge 612 on the fourth web plate 613. Thus, the fourth cylinder sleeve assembly of the fourth high-lift cylinder assembly 61 is hinged to the intermediate frame 6 and ensures flexible rotation.

[0054] Preferably, the first web plate 215 provided on the side surface of the first cylinder sleeve 212 of the first cylinder sleeve assembly 2 in the first high-lift cylinder assembly 2 is a special-shaped structure that can avoid the bottom rollers, thereby avoiding interference and increasing the web plate area to improve the stress condition.

[0055] Similarly, the second web plate 724 provided on the side surface of the second cylinder sleeve 722 of the second cylinder sleeve assembly in the second high-lift cylinder assembly 72 is a special-shaped structure that can avoid the bottom rollers, thereby avoiding interference and increasing the web plate area to improve the stress condition; the third web plate 724' provided on the side surface of the third cylinder sleeve 722' of the third cylinder sleeve assembly in the third high-lift cylinder assembly 72' is a special-shaped structure that can avoid the bottom rollers, thereby avoiding interference and increasing the web plate area to improve the stress condition; the fourth web plate 613 provided on the side surface of the fourth cylinder sleeve 611 of the fourth cylinder sleeve assembly in the fourth high-lift cylinder assembly 61 is a special-shaped structure that can avoid the bottom rollers, thereby avoiding interference and increasing the web plate area to improve the stress condition.

[0056] As a specific implementation manner, one end of the first pushing oil cylinder 5 hinged to the first pushing oil cylinder hinge ear 213 of the first cylinder sleeve assembly 21 in the first height-adjusting oil cylinder assembly 2 is provided with a first hinge ear, and a spherical plain bearing 51 is arranged at this first hinge ear. Thus, it can be ensured that the first pushing oil cylinder 5 can rotate freely back and forth and can rotate a certain angle up and down, ensuring smooth pushing. Similarly, one end of the second pushing oil cylinder 73 hinged to the second pushing oil cylinder hinge ear 725 of the third cylinder sleeve assembly in the third height-adjusting oil cylinder assembly 72' is provided with a second hinge ear, and a spherical plain bearing is arranged at this second hinge ear. Thus, it can be ensured that the second pushing oil cylinder 73 can rotate freely back and forth and can rotate a certain angle up and down, ensuring smooth pushing.

[0057] The working principle and process of the adjustable deviation belt conveyor self-shifting tail of the present invention are as follows: When the whole machine needs to move forward, the height-adjusting oil cylinders of the first height-adjusting oil cylinder assembly 2, the second height-adjusting oil cylinder assembly 72, the third height-adjusting oil cylinder assembly 72', and the fourth height-adjusting oil cylinder assembly 61 extend, the fuselage is lifted, and then the first pushing oil cylinder 5 and the second pushing oil cylinder 73 extend, and the fuselage moves forward along the track 4; When it is necessary to adjust the deviation according to the direction of the belt deviation, taking the movement to the right as shown in Figure 3 as an example, the height-adjusting oil cylinders contract, the first deviation-adjusting oil cylinders 1 and the second deviation-adjusting oil cylinders 71 on the right side of the fuselage extend, the first deviation-adjusting oil cylinders 1 and the second deviation-adjusting oil cylinders 71 on the left side of the fuselage contract, then the height-adjusting oil cylinders extend, the fuselage is lifted, and then the deviation-adjusting oil cylinders on the right side of the fuselage contract, and at the same time the deviation-adjusting oil cylinders on the left side of the fuselage extend. Under the action of the deviation-adjusting oil cylinders of the head frame and the tail frame, the intermediate frame 6 as a rigid body as a whole deviates, so that the whole fuselage moves to the right, realizing the deviation-adjusting function; In addition, when the deviation-adjusting oil cylinders and the pushing oil cylinders extend and contract together, the intermediate frame can be directly pulled straight, realizing simultaneous overall deviation adjustment and forward movement.

[0058] In summary, compared with the prior art, the adjustable deviation belt conveyor self-shifting tail of the present invention has the following advantages and beneficial effects:

[0059] 1. In the adjustable deviation belt conveyor self-shifting tail of the present invention, height-adjusting oil cylinders are provided on both sides of the tail frame, the intermediate frame and the head frame, and deviation-adjusting oil cylinders and pushing oil cylinders are provided on both sides of the tail frame and the head frame. It can realize the convenient, fast and accurate walking and deviation adjustment of the whole machine. At the same time, deviation-adjusting oil cylinders and pushing oil cylinders are not provided on both sides of the intermediate frame, effectively reducing the structural complexity and saving costs;

[0060] 2. The adjustable deviation belt conveyor self-shifting tail of the present invention can conveniently realize the independent side deviation adjustment of the self-shifting tail, has the advantages of simple and compact structure, convenient and fast deviation adjustment, safety and reliability, and can minimize the overall height of the self-shifting tail, can adapt to various working conditions with strict dimensional requirements, especially has good adaptability to the occasion with a lower coal seam, and has unique advantages for the situation with a lower roadway height.

[0061] It should be noted that, in this article, unless otherwise clearly specified and defined, the term "connection" or its synonyms should be understood in a broad sense. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood according to specific circumstances. Moreover, expressions such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. At the same time, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. In addition, in this article, "front", "rear", "left", "right", "upper" and "lower" are all referenced based on the placement state shown in the drawings.

[0062] It should also be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the present invention.

Claims

1. An adjustable offset belt conveyor self - moving tailstock, comprising a tail frame, a head frame, an intermediate frame connected between the tail frame and the head frame, and tracks provided under the tail frame, the intermediate frame and the head frame. On both sides of one end of the tail frame away from the intermediate frame, there are first height - adjusting oil cylinder assemblies. On both sides of one end of the head frame away from the intermediate frame, there are second height - adjusting oil cylinder assemblies. On both sides of one end of the head frame close to the intermediate frame, there are third height - adjusting oil cylinder assemblies. On both sides of the intermediate frame, there are fourth height - adjusting oil cylinder assemblies. On both sides of one end of the tail frame away from the intermediate frame, there are first pushing oil cylinders. On both sides of one end of the head frame away from the intermediate frame, there are second pushing oil cylinders, characterized in that, On both sides of the tailstock, there are first offset cylinders, and on both sides of the headstock, there are second offset cylinders, where: The first height-adjusting cylinder assembly includes a first cylinder sleeve assembly and a first height-adjusting cylinder. The first cylinder sleeve assembly is sleeved on the outer periphery of the first height-adjusting cylinder. The first cylinder sleeve assembly includes a first cylinder sleeve, a first offset cylinder hinge ear provided on one side of the first cylinder sleeve, a first pushing cylinder hinge ear provided on the other side of the first cylinder sleeve, a first web provided on the side surface of the first cylinder sleeve, and a first hinge provided on the end surface of the first web. The first height-adjusting cylinder is installed in the inner periphery of the first cylinder sleeve in a clearance fit manner. The first cylinder sleeve assembly is hinged to the tailstock through the first web and the first hinge; The second height-adjusting cylinder assembly includes a second cylinder sleeve assembly and a second height-adjusting cylinder. The second cylinder sleeve assembly is sleeved on the outer periphery of the second height-adjusting cylinder. And the second cylinder sleeve assembly includes a second cylinder sleeve, a second offset cylinder hinge ear provided on one side of the second cylinder sleeve, a second web provided on the side surface of the second cylinder sleeve, and a second hinge provided on the end surface of the second web. The second height-adjusting cylinder is installed in the inner periphery of the second cylinder sleeve in a clearance fit manner. The second cylinder sleeve assembly is hinged to the headstock through the second web and the second hinge; The third height-adjusting cylinder assembly includes a third cylinder sleeve assembly and a third height-adjusting cylinder. The third cylinder sleeve assembly is sleeved on the outer periphery of the third height-adjusting cylinder. And the third cylinder sleeve assembly includes a third cylinder sleeve, a second pushing cylinder hinge ear provided on one side of the third cylinder sleeve, a third web provided on the side surface of the third cylinder sleeve, and a third hinge provided on the end surface of the third web. The third height-adjusting cylinder is installed in the inner periphery of the third cylinder sleeve in a clearance fit manner. The third cylinder sleeve assembly is hinged to the headstock through the third web and the third hinge; The fourth height-adjusting cylinder assembly includes a fourth cylinder sleeve assembly and a fourth height-adjusting cylinder. The fourth cylinder sleeve assembly is sleeved on the outer periphery of the fourth height-adjusting cylinder. And the fourth cylinder sleeve assembly includes a fourth cylinder sleeve, a fourth web provided on the side surface of the fourth cylinder sleeve, and a fourth hinge provided on the end surface of the fourth web. The fourth height-adjusting cylinder is installed in the inner periphery of the fourth cylinder sleeve in a clearance fit manner. The fourth cylinder sleeve assembly is hinged to the intermediate frame through the fourth web and the fourth hinge; One end of the first offset cylinder is hinged to the first offset cylinder hinge ear, and the other end of the first offset cylinder is hinged to the tailstock. One end of the second offset cylinder is hinged to the second offset cylinder hinge ear, and the other end of the second offset cylinder is hinged to the headstock; One end of the first pushing cylinder is hinged to the first pushing cylinder hinge ear, and the other end of the first pushing cylinder is hinged to a first fixed block installed on the track. One end of the second pushing cylinder is hinged to the second pushing cylinder hinge ear, and the other end of the second pushing cylinder is hinged to a second fixed block installed on the track; The first height-adjusting oil cylinder assembly further includes a first bushing, and the first bushing is installed at the top of the first cylinder sleeve of the first cylinder sleeve assembly; The second height-adjusting oil cylinder assembly further includes a second bushing, and the second bushing is installed at the top of the second cylinder sleeve of the second cylinder sleeve assembly; The third height-adjusting oil cylinder assembly further includes a third bushing, and the third bushing is installed at the top of the third cylinder sleeve of the third cylinder sleeve assembly; The fourth height-adjusting oil cylinder assembly further includes a fourth bushing, and the fourth bushing is installed at the top of the fourth cylinder sleeve of the fourth cylinder sleeve assembly; The first height-adjusting oil cylinder assembly further includes a first pin shaft. Hinge ears and mating hinges that are hinged to the first hinge on the first web plate are provided on both side surfaces of the tailstock, and the first pin shaft vertically penetrates through the mating hinge on the tailstock and the first hinge on the first web plate; The second height-adjusting oil cylinder assembly further includes a second pin shaft. Hinge ears and mating hinges that are hinged to the second hinge on the second web plate are provided on both side surfaces of the headstock, and the second pin shaft vertically penetrates through the mating hinge on the headstock and the second hinge on the second web plate; The third height-adjusting oil cylinder assembly further includes a third pin shaft. Hinge ears and mating hinges that are hinged to the third hinge on the third web plate are provided on both side surfaces of the headstock, and the third pin shaft vertically penetrates through the mating hinge on the headstock and the third hinge on the third web plate; The fourth height-adjusting oil cylinder assembly further includes a fourth pin shaft. Hinge ears and mating hinges that are hinged to the fourth hinge on the fourth web plate are provided on both side surfaces of the intermediate frame, and the fourth pin shaft vertically penetrates through the mating hinge on the intermediate frame and the fourth hinge on the fourth web plate.

2. The adjustable-offset belt conveyor self-shifting tailstock according to claim 1, characterized in that, The first web plate, the second web plate, the third web plate, and the fourth web plate are special-shaped structures that avoid the bottom rollers.

3. The adjustable-offset belt conveyor self-shifting tailstock according to claim 1 or 2, wherein: One end of the first pushing oil cylinder that is hinged to the hinge ear of the first pushing oil cylinder is provided with a first hinge ear, and a spherical plain bearing is provided at the first hinge ear; One end of the second pushing oil cylinder that is hinged to the hinge ear of the second pushing oil cylinder is provided with a second hinge ear, and a spherical plain bearing is provided at the second hinge ear.

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