A center single chain drive and conveyor

Abstract

The present application relates to the mining field, and discloses a single-chain driving device and a conveyor, which comprises a chain wheel, a driving shaft, a driving sleeve and a chain wheel hole.The chain wheel hole is arranged on the chain wheel.Two driving shafts are coaxially and oppositely arranged with a space between them, and the chain wheel is located between the two driving shafts.Two driving sleeves are arranged, and the driving sleeve and the driving shaft are one-to-one corresponding arrangement.The driving sleeve is arranged on the driving shaft, and the driving sleeve is adapted to slide along the axial extension direction of the driving shaft.Two driving sleeves slide towards each other and are inserted into the chain wheel hole.Two driving sleeves are adapted to drive the chain wheel to rotate.Two driving sleeves slide away from each other and are separated from the chain wheel hole, and the chain wheel is adapted to be disassembled or assembled from the two driving shafts.The whole device has simple structure, and the chain wheel replacement process is convenient, which can be operated underground, saving time and effort.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of mining, in particular to a middle single chain driving device and a conveyor. BACKGROUND

[0002] The heading machine is widely used in the excavation work of the coal mine tunnel. The material excavated by the heading machine is transported to the belt conveyor behind the heading machine by the first conveyor. The swing type first conveyor uses the middle single chain scraper chain to transport the material. In actual production, the driving sprocket is worn out quickly and needs to be replaced frequently.

[0003] In the implementation of the present application, it is found that the prior art has at least the following problems: at present, when replacing the sprocket, the driving device needs to be disassembled as a whole and transported to the surface for disassembly, the sprocket is replaced; after the driving device is reassembled, it is transported to the underground for installation, the replacement process of the sprocket is complex, and the downtime for maintenance of the heading machine is increased. SUMMARY

[0004] In view of this, in order to improve the convenience of replacing the sprocket, the present application provides a middle single chain driving device and a conveyor.

[0005] Specifically, the technical scheme comprises the following:

[0006] On the one hand, a middle single chain driving device is introduced, which comprises:

[0007] A sprocket, wherein the sprocket is provided with a sprocket hole;

[0008] Two driving shafts, wherein the two driving shafts are coaxially and oppositely spaced apart, and the sprocket is located between the two driving shafts;

[0009] Two driving sleeves, wherein the driving sleeves and the driving shafts are one-to-one corresponding, the driving sleeves are arranged on the driving shafts, and the driving sleeves are adapted to slide relative to the driving shafts along the axial extension direction of the driving shafts;

[0010] The two driving sleeves slide towards each other and are inserted into the sprocket hole, and the two driving sleeves are adapted to drive the sprocket to rotate;

[0011] The two driving sleeves slide away from each other and are separated from the sprocket hole, and the sprocket is adapted to be disassembled or installed from between the two driving shafts.

[0012] Preferably, the driving shaft is provided with a first external spline;

[0013] The driving sleeve is sleeved on the driving shaft, and the inner ring of the driving sleeve is provided with a first internal spline;

[0014] The first outer spline and the first inner spline both extend along the axial direction of the drive shaft, and the first inner spline and the first outer spline are inserted.

[0015] Preferably, the sprocket hole is provided with a second inner spline.

[0016] The outer ring of the drive sleeve is provided with a second outer spline.

[0017] The second outer spline and the second inner spline both extend along the axial direction of the drive shaft, and the second inner spline and the second outer spline are inserted.

[0018] Preferably, the sprocket hole is provided with a positioning ring, and the positioning ring protrudes towards the direction close to the sprocket axis.

[0019] The positioning ring is located in the middle of the sprocket hole, and the second inner spline is arranged on both sides of the positioning ring, and the drive sleeve and the positioning ring abut.

[0020] Preferably, the drive sleeve is provided with a first step.

[0021] The first step is arranged at one end of the drive sleeve extending into the sprocket hole.

[0022] The first step and the positioning ring are clamped.

[0023] Preferably, the distance between the two drive shafts along the axial extension direction of the sprocket is a first distance.

[0024] The first distance is greater than the thickness of the sprocket.

[0025] Preferably, the single-chain drive device comprises a bearing seat, a bearing and a fixing sleeve.

[0026] The drive shaft, the bearing seat, the bearing and the fixing sleeve are arranged one by one.

[0027] The inner ring of the bearing is connected with the drive shaft, the outer ring of the bearing is connected with the bearing seat, the fixing sleeve is arranged between the drive sleeve and the bearing seat, and the fixing sleeve is used to limit the axial displacement of the drive sleeve when the drive sleeve is inserted into the sprocket hole.

[0028] Preferably, the fixing sleeve comprises an upper sleeve body and a lower sleeve body.

[0029] The upper sleeve body is arranged on one side of the drive shaft, the lower sleeve body is arranged on the other side of the drive shaft, the upper sleeve body and the lower sleeve body are connected through fasteners, and the upper sleeve body and the lower sleeve body enclose a cavity.

[0030] One end of the chamber is provided with a first step, the other end of the chamber is provided with a second step, the first step and the driving sleeve are movably connected, and the second step and the bearing seat are connected.

[0031] Preferably, the middle single chain driving device comprises a pin.

[0032] The driving shaft is provided with a pin hole, the pin is inserted into the pin hole when the driving sleeve and the sprocket are connected, and the pin is used to limit the axial displacement of the driving sleeve.

[0033] In another aspect, a conveyor is introduced, which is provided with the middle single chain driving device.

[0034] The technical scheme provided by the present application has at least the following beneficial effects:

[0035] The driving shafts arranged at intervals provide a dismounting space for the sprocket, meanwhile, the driving sleeve on the driving shafts drives the sprocket, so that the normal operation of the sprocket is ensured. The whole device has a simple structure, and the sprocket can be conveniently replaced, which can be operated underground, saving time and effort. DETAILED DESCRIPTION

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0037] Figure 1 It is a perspective view of the middle single chain driving device of one embodiment of the present application;

[0038] Figure 2 It is a schematic view of the installation structure of the middle single chain driving device of one embodiment of the present application;

[0039] Figure 3 It is a schematic view of the dismounting structure of the middle single chain driving device of one embodiment of the present application;

[0040] Figure 4 It is a schematic view of the sprocket structure of the middle single chain driving device of one embodiment of the present application;

[0041] Figure 5 It is a schematic view of the sprocket structure of the middle single chain driving device of one embodiment of the present application;

[0042] Figure 6 It is a schematic view of the fixing sleeve side view of the middle single chain driving device of one embodiment of the present application;

[0043] Figure 7Fig. 2 is a schematic view of the structure of the fixed sleeve of the single-chain driving device according to an embodiment of the present application;

[0044] Figure 8 Fig. 2 is a schematic view of the structure of the fixed sleeve of the single-chain driving device according to an embodiment of the present application;

[0045] Figure 9 Fig. 2 is a schematic view of the structure of the fixed sleeve of the single-chain driving device according to an embodiment of the present application;

[0046] Figure 10 Fig. 2 is a schematic view of the structure of the fixed sleeve of the single-chain driving device according to an embodiment of the present application.

[0047] The reference numerals in the figures represent the following:

[0048] 1 - driving frame; 2 - bearing seat; 3 - sprocket; 31 - second inner spline; 32 - positioning ring; 4 - driving shaft; 5 - fixed sleeve; 51 - upper sleeve body; 52 - lower sleeve body; 53 - fastener; 54 - first step; 55 - second step; 6 - driving sleeve; 61 - sleeve hole; 62 - first inner spline; 63 - second outer spline; 64 - first step; 65 - second step.

[0049] An explicit embodiment of the present application has been shown by the above-mentioned figures, and will be described in more detail hereinafter. These figures and the written description are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the figures in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort fall within the scope of protection of the present application.

[0051] Before the embodiments of the present application are described in further detail, the orientation nouns such as “upper part”, “lower part”, “side part” involved in the embodiments of the present application do not have the meaning of limiting the scope of protection of the present application.

[0052] In order to make the technical solutions and advantages of the present application clearer, the embodiments of the present application will be described in further detail below with reference to the figures.

[0053] The single chain driving device comprises a sprocket 3, a driving shaft 4, and a driving sleeve 6. The sprocket 3 is provided with a sprocket hole. The driving shaft 4 is provided with two driving shafts 4. One driving shaft 4 is arranged on one side of the sprocket 3, and the other driving shaft 4 is arranged on the other side of the sprocket 3. The two driving shafts 4 are coaxially arranged at intervals. The sprocket 3 is located between the two driving shafts 4. The driving sleeve 6 is provided with two driving sleeves 6. The driving sleeve 6 and the driving shaft 4 are one-to-one corresponding. The driving sleeve 6 is arranged on the driving shaft 4. The driving sleeve 6 is adapted to slide relative to the driving shaft 4 along the axial extension direction of the driving shaft 4. The two driving sleeves 6 slide towards each other and are inserted into the sprocket hole. The two driving sleeves 6 are adapted to drive the sprocket 3 to rotate. The two driving sleeves 6 slide away from each other and are separated from the sprocket hole. The sprocket 3 is adapted to be disassembled or assembled from the two driving shafts 4.

[0054] Further, as shown in Figure 2 and Figure 3 , the sprocket 3 is arranged between the two driving shafts 4 in the embodiment. The two driving shafts 4, the two driving sleeves 6, and the sprocket 3 are coaxially arranged. The two driving sleeves 6 can move towards or away from each other along the axial extension direction of the driving shaft 4. When the sprocket 3 is assembled, the two driving sleeves 6 slide towards each other into the sprocket hole. The driving sleeve 6 and the sprocket 3 are inserted and connected. The driving shaft 4 transmits power to the sprocket 3 through the driving sleeve 6. The sprocket 3 can rotate. When the sprocket 3 is disassembled, the two driving sleeves 6 slide away from each other out of the sprocket hole. The connection between the driving sleeve 6 and the sprocket 3 is disconnected. At the same time, the sprocket 3 can be disassembled from the two driving shafts 4 and replaced with a new sprocket 3. After the replacement is completed, the two driving sleeves 6 are again slid towards each other into the sprocket hole.

[0055] In the embodiment, the driving shaft 4 arranged at intervals provides a disassembly space for the sprocket 3. At the same time, the driving sleeve 6 arranged on the driving shaft 4 transmits power to the sprocket 3, ensuring the normal operation of the sprocket 3. The whole device has a simple structure. The sprocket 3 replacement process is convenient and can be operated underground, saving time and effort.

[0056] Preferably, the driving shaft 4 is provided with a first external spline. The driving sleeve 6 is sleeved on the driving shaft 4. The inner ring of the driving sleeve 6 is provided with a first internal spline 62. The first external spline and the first internal spline 62 extend along the axial direction of the driving shaft 4. The first external spline and the first internal spline 62 are inserted and connected.

[0057] Further, as shown in Figure 9 and Figure 10As shown, the driving sleeve 6 is a convex cylindrical structure, and has a sleeve hole 61 in the middle. The inner wall of the sleeve hole 61 is provided with a first inner spline 62. The driving shaft 4 is inserted into the sleeve hole 61, and the outer wall of the driving shaft 4 is provided with a first outer spline. The first inner spline 62 and the first outer spline are inserted to achieve the circumferential positioning between the driving sleeve 6 and the driving shaft 4, and to realize the circumferential rotation of the driving sleeve 6 driven by the driving shaft 4. It can be understood that the setting length of the first outer spline along the axial direction of the driving shaft 4 needs to meet the requirements of disassembling the chain wheel 3, that is, the axial distance between the two driving sleeves 6 when the driving sleeves 6 slide in opposite directions is greater than the thickness of the chain wheel 3.

[0058] Preferably, the chain wheel 3 hole is provided with a second inner spline 31; the outer ring of the driving sleeve 6 is provided with a second outer spline 63; the second outer spline and the second inner spline 31 both extend along the axial direction of the driving shaft 4, and the second inner spline 31 and the second outer spline 63 are inserted.

[0059] Further, as shown in Figure 9 and Figure 10 , the outer wall of the driving sleeve 6 is provided with a second outer spline 63. As shown in Figure 4 and Figure 5 , the chain wheel 3 hole is provided with a second inner spline 31, and the second outer spline 63 and the second inner spline 31 are inserted to achieve the circumferential positioning between the chain wheel 3 and the driving sleeve 6, and to realize the power transmission from the driving shaft 4 to the chain wheel 3 through the driving sleeve 6 to drive the rotation of the chain wheel 3.

[0060] Preferably, the chain wheel 3 hole is provided with a positioning ring 32, and the positioning ring 32 protrudes towards the axial direction of the chain wheel 3; the positioning ring is located in the middle of the chain wheel 3 hole, and the two sides of the positioning ring 32 are respectively provided with a second inner spline 31, and the driving sleeve 6 abuts against the positioning ring 32.

[0061] Further, as shown in Figure 4 and Figure 5 , it can be understood that the positioning ring 32 is arranged at the middle position of the chain wheel 3 hole along the axial direction of the chain wheel 3. The lengths of the second inner splines 31 arranged on the two sides of the positioning ring 32 along the axial direction of the chain wheel 3 are equal. The driving sleeve 6 is inserted into the chain wheel 3 hole, and the driving sleeve 6 abuts against the positioning ring 32 to achieve the axial positioning of the two driving sleeves 6.

[0062] Preferably, as shown in Figure 10 , the driving sleeve 6 is provided with a first step 64; the first step 64 is arranged at one end of the driving sleeve 6 extending into the chain wheel 3 hole; and the first step 64 and the positioning ring 32 are clamped.

[0063] Further, as shown in Figure 2As shown, two driving sleeves 6 are inserted into the holes of the sprocket 3, and the end faces of the two driving sleeves 6 abut. The extension length of the second outer spline 63 on the driving sleeve 6 in the axial direction of the driving shaft 4 is greater than or equal to the extension length of the second inner spline 31 in the axial direction of the sprocket 3, and the sprocket 3 and the driving shaft 4 are coaxially arranged;

[0064] Preferably, as shown in Figure 3 As shown, the distance between the two driving shafts 4 in the extension direction of the axial line of the sprocket 3 is a first distance; the first distance is greater than the thickness of the sprocket 3. In this embodiment, the first distance between the two driving shafts 4 provides a mounting space for the sprocket 3, facilitating the disassembly and assembly of the sprocket 3. When mounting the sprocket 3, the sprocket 3 is placed at the position of the first distance, and the axial line of the sprocket and the axial line of the driving shaft 4 are coaxially arranged; then the two driving sleeves 6 are respectively slid along the axial direction of the driving shaft 4, and one end of each of the two driving sleeves 6 is clamped with the positioning ring 32, so that the second outer spline 63 of the two driving sleeves 6 and the second inner spline 31 of the sprocket 3 are inserted and fixed, and thus the driving sleeve 6 can drive the sprocket 3 to rotate.

[0065] Further, as shown in Figure 5 The thickness of the sprocket 3 refers to the extension length of the sprocket 3 in the axial direction of the sprocket 3.

[0066] Preferably, as shown in Figure 1 and Figure 2 As shown, the single-chain driving device comprises a bearing seat 2, a bearing, and a fixing sleeve 5; the driving shaft 4, the bearing seat 2, the bearing, and the fixing sleeve 5 are correspondingly arranged; the inner ring of the bearing is connected with the driving shaft 4, the outer ring of the bearing is connected with the bearing seat 2, and the fixing sleeve 5 is arranged between the driving sleeve 6 and the bearing seat 2, and the fixing sleeve 5 is used to limit the axial displacement of the driving sleeve 6 when the driving sleeve 6 is inserted into the hole of the sprocket 3.

[0067] Further, the fixing sleeve 5 achieves the axial positioning of the driving sleeve 6, preventing the driving sleeve 6 from sliding out of the hole of the sprocket 3 when the sprocket 3 is working.

[0068] Preferably, as shown in Figure 6 , Figure 7 and Figure 8 The fixing sleeve 5 comprises an upper sleeve body 51 and a lower sleeve body 52; the upper sleeve body 51 is arranged on one side of the driving shaft 4, the lower sleeve body 52 is arranged on the other side of the driving shaft 4, the upper sleeve body 51 and the lower sleeve body 52 are connected through a fastener 53, and the upper sleeve body 51 and the lower sleeve body 52 enclose a cavity; one end of the cavity is provided with a first step 54, and the other end of the cavity is provided with a second step 55; the first step 54 is movably clamped with the driving sleeve 6, and the second step 55 is clamped with the bearing seat 2.

[0069] Furthermore, the upper sleeve 51 has a through hole, and the lower sleeve 52 has a threaded hole. The fastener 53 is a bolt, which passes through the through hole on the upper sleeve 51 and the threaded hole on the lower sleeve 52 for screwing. The upper sleeve 51 and lower sleeve 52, connected by bolts, form an "I"-shaped chamber. The structure located between the first step 54 and the second step 55 is engaged between the drive sleeve 6 and the bearing seat 2. The first step 54 and the second step 65 of the drive sleeve 6 are movably engaged, allowing the fixed sleeve 5 to axially position the drive sleeve 6 without hindering its rotation. The fixed sleeve 5 encloses the drive sleeve 6, drive shaft 4, and other structures within it, achieving a more complete and aesthetically pleasing appearance for the single-chain drive device. The fixed engagement between the fixed sleeve 5 and the bearing seat 2 restricts the circumferential rotation of the fixed sleeve 5.

[0070] Preferably, in another embodiment, the single-chain drive device includes a pin; the drive shaft 4 is provided with a pin hole, and when the drive sleeve 6 and the sprocket 3 are inserted, the pin is inserted into the pin hole, and the pin is used to limit the axial displacement of the drive sleeve 6.

[0071] Furthermore, such as Figure 1 As shown, in this embodiment, the single-chain drive device further includes a drive frame 1, which is an integrally welded structural component. Bearing seats 2 on both the left and right sides are respectively installed in the bearing seat 2 holes on both sides of the drive frame 1. A drive shaft 4 on each side is respectively installed in the bearing seat 2 on the left and right sides via bearings.

[0072] This embodiment also introduces a conveyor equipped with a single-chain drive device as described above.

[0073] When the conveyor needs to replace the sprocket 3, disassemble and remove the fixing sleeves 5 on both sides; then slide the two drive sleeves 6 to the left and right sides respectively. When the axial distance between the two drive sleeves 6 exceeds the thickness of the sprocket 3, the sprocket 3 can be removed from between the two drive sleeves 6 and the two drive shafts 4 for replacement. Figure 3 As shown; after replacing the new sprocket 3, insert the second external spline 63 of the two drive sleeves 6 and the second internal spline 31 of the sprocket 3; after adjusting the axial position between the sprocket 3, drive sleeve 6 and drive shaft 4, install the two fixing sleeves 5, and the replacement of the sprocket 3 is completed.

[0074] In this embodiment, the single-chain drive device allows for easy replacement of the sprocket 3 at the underground working face. This avoids the hassle of disassembling the entire drive device and transporting it to the surface for disassembly and replacement of the sprocket 3, reducing equipment downtime for maintenance and improving equipment production efficiency.

[0075] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "a plurality" refers to two or more unless otherwise expressly defined.

[0076] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

[0077] The above merely preferred embodiments of the present application and are not intended to limit the present application. These modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A center single chain drive apparatus characterized by, The utility model relates to a kind of single-chain driving device, including: Sprocket, which is provided with a sprocket hole; Two drive shafts are provided, and the two drive shafts are coaxially and oppositely spaced apart, with the sprocket located between the two drive shafts; Two drive sleeves are provided, and the drive sleeve and the drive shaft are one-to-one corresponding arrangement, the drive sleeve is set on the drive shaft, and the drive sleeve is adapted to slide along the axial extension direction of the drive shaft relative to the drive shaft; The two drive sleeves slide towards each other and are inserted into the sprocket hole, and the two drive sleeves are adapted to drive the sprocket to rotate; The two drive sleeves slide away from each other and are separated from the sprocket hole, and the sprocket is adapted to be removed or installed from between the two drive shafts.

2. The single-chain driving device according to claim 1, wherein: The drive shaft is provided with a first external spline; The drive sleeve is fitted on the drive shaft, and the inner ring of the drive sleeve is provided with a first internal spline; The first external spline and the first internal spline both extend along the axial direction of the drive shaft, and the first external spline and the first internal spline are inserted.

3. The single-chain driving device according to claim 1, wherein: The sprocket hole is provided with a second internal spline; The outer ring of the drive sleeve is provided with a second external spline; The second external spline and the second internal spline both extend along the axial direction of the drive shaft, and the second internal spline and the second external spline are inserted.

4. The single-chain driving device according to claim 3, wherein: A positioning ring is provided in the sprocket hole, and the positioning ring protrudes towards the direction close to the sprocket axis; The positioning ring is located in the middle of the sprocket hole, and the second internal spline is provided on both sides of the positioning ring, and the drive sleeve and the positioning ring abut.

5. The single-chain driving device according to claim 4, wherein: The drive sleeve is provided with a first step; The first step is provided at one end of the drive sleeve that extends into the sprocket hole; The first step and the positioning ring are clamped.

6. The single-chain driving device according to claim 1, wherein: The distance between the two drive shafts along the axial extension direction of the sprocket is a first distance; The first distance is greater than the thickness of the sprocket.

7. The single-chain driving device according to claim 1, wherein: The single-chain driving device comprises a bearing seat, a bearing, and a fixing sleeve; The drive shaft, the bearing seat, the bearing, and the fixing sleeve are one-to-one corresponding arrangement; The inner ring of the bearing is connected with the drive shaft, the outer ring of the bearing is connected with the bearing seat, the fixing sleeve is provided between the drive sleeve and the bearing seat, and the fixing sleeve is used to limit the axial displacement of the drive sleeve when the drive sleeve is inserted into the sprocket hole.

8. The single-chain driving device according to claim 7, wherein: The fixing sleeve comprises an upper sleeve body and a lower sleeve body; The upper sleeve body is provided on one side of the drive shaft, the lower sleeve body is provided on the other side of the drive shaft, the upper sleeve body and the lower sleeve body are connected through a fastener, and the upper sleeve body and the lower sleeve body enclose a cavity. One end of the chamber is provided with a first step, the other end of the chamber is provided with a second step, the first step and the driving sleeve are movably connected, and the second step and the bearing seat are connected.

9. The single-chain drive device according to claim 1, wherein the single-chain drive device comprises a pin. The driving shaft is provided with a pin hole, the pin is inserted into the pin hole when the driving sleeve and the sprocket are connected, and the pin is used for limiting axial displacement of the driving sleeve. A single-chain drive device according to any one of claims 1 to 9.

10. A conveyor characterized by ​

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