Telescopic sealing-tape machine and telescopic method

Abstract

The invention relates to the technical field of telescopic sealing-tape machines, and particularly discloses a telescopic sealing-tape machine and a telescopic method.The telescopic sealing-tape machine comprises a first-stage machine body arranged on the ground, a last-stage machine body located at the farthest position during stretching and a plurality of movable second-stage machine bodies in the middle; first rollers and second rollers are arranged in the final-stage machine body and the multiple secondary machine bodies at intervals, a driving roller and multiple third rollers are arranged on the first-stage machine body, and a first speed reducer acting on the driving roller in a transmission mode is arranged on the first-stage machine body; an adhesive tape is wound on the driving roller, the plurality of third rollers, the plurality of first rollers and the second rollers; locking mechanisms for mutually fixing the current fuselage and the adjacent fuselage close to one side of the last-stage fuselage are arranged on the first-stage fuselage and the plurality of secondary fuselages; the problems that due to an independently-arranged telescopic control system of a traditional telescopic sealing-tape machine, the telescopic sealing-tape machine is complex in structure and high in cost, and the comprehensive cost efficiency of a power and transmission device with the telescopic function of a machine body is low are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of telescopic belt conveyors, and in particular, to a telescopic belt conveyor and a telescopic method. Background Art

[0002] Today, with the increasingly developed logistics, telescopic belt conveyors are widely used in scenarios such as logistics transfer for loading and unloading trucks, avoiding in the processing center passage, and fire disconnection. Based on the functional requirements of the telescopic belt conveyor, in conventional design practices, the power and transmission of the two functions of the body telescoping and the belt conveying are independently arranged. However, in actual use, the frequency of use of the body telescoping function is relatively low. Considering comprehensively, the comprehensive cost-effectiveness ratio of the power and transmission devices of the body telescoping function is extremely low. The independently set telescopic control system of the telescopic belt conveyor involves a telescopic power system and a locking system, which requires a large number of electrical control devices and system cooperation, making the structure of the telescopic belt conveyor complex and costly. Summary of the Invention

[0003] The purpose of the present invention is to provide a telescopic belt conveyor and a telescopic method, which solve the problems that the independently set telescopic control system of the traditional telescopic belt conveyor makes the structure of the telescopic belt conveyor complex and costly, and the comprehensive cost-effectiveness ratio of the power and transmission devices of the body telescoping function is relatively low, etc.

[0004] The present invention is realized through the following technical solutions: A telescopic belt conveyor includes a primary body provided on the ground, when extended, a last-stage body located at the farthest position, and a plurality of secondary bodies that can move in the middle. The first rollers and the second rollers are spaced apart in both the last-stage body and the plurality of secondary bodies. A driving roller and a plurality of third rollers are provided on the primary body. A first speed reducer is provided on the primary body, and the first speed reducer acts on the driving roller through transmission; a belt is wound around the driving roller, the plurality of third rollers, the plurality of first rollers and the second rollers.

[0005] It further includes a locking mechanism. The locking mechanism is provided on both the primary body and the plurality of secondary bodies, and the locking mechanism is used to fix the current body to the adjacent body on the side close to the last-stage body.

[0006] The locking mechanism includes a mounting seat, a driving rod, a clamping seat and a plurality of guide rods. The mounting seat is fixed to the corresponding primary body or secondary body. The driving rod is rotatably arranged on the mounting seat. Threaded sections are symmetrically arranged at both ends of the driving rod. A plurality of guide rods parallel to the driving rod are provided at both ends of the mounting seat. A clamping seat is slidably arranged on the guide rods at both ends of the mounting seat. The two clamping seats are respectively in threaded cooperation with the two threaded sections. Clamping plates are provided at the tops of the two clamping seats, and the two clamping plates are located on the left and right sides of the next-stage body.

[0007] Furthermore, the locking mechanism also includes a driving shaft and a driving gear, the driving shaft is arranged in parallel at the bottom of the next-level fuselage, the driving gear is sleeved on the driving rod, the driving shaft is provided with a first rack, and two sections of second racks are also arranged on the driving shaft at intervals, the second rack and the first rack are circumferentially arranged about the driving shaft, and when the driving shaft moves with the extension and retraction of the fuselage in which it is located, the first rack or the second rack is controlled to engage with the driving gear on the upper-level fuselage by rotating the driving shaft.

[0008] Furthermore, it also includes a synchronization mechanism, which is arranged between adjacent fuselages, and includes a bearing seat, a driving wheel, a driven wheel and a synchronous belt, wherein the bearing seat is arranged at the bottom of the secondary and final fuselages, the driving wheel is rotatably arranged on the bearing seat, and the driving wheel is sleeved on the drive shaft of the fuselage of the stage and connected with the drive shaft sliding key;

[0009] The driven wheel is sleeved on the driving shaft on the upper-level machine body, and the driving wheel and the driven wheel are connected through the synchronous belt transmission.

[0010] Furthermore, a first hand wheel is sleeved on the driving shaft located at the bottom of the final stage fuselage.

[0011] Furthermore, a second reducer is provided at the bottom of the last-stage fuselage, and an output end of the second reducer is drivingly connected to the drive shaft on the fuselage of this stage.

[0012] Furthermore, the driving gear is a turbine, and the first rack and the second rack are both incomplete helical teeth.

[0013] Furthermore, the locking mechanism further comprises a connecting plate and a second hand wheel disc, and one end of a plurality of the guide rods away from the mounting seat is fixedly connected to the connecting plate;

[0014] The two ends of the driving rod are respectively rotatably connected to the two connecting plates, and the two ends of the driving rod respectively extend out of the two connecting plates and are both connected to a second hand wheel disc.

[0015] Furthermore, it includes a machine base and a lifting member, the machine base is provided at both the front and rear ends of the first-level fuselage, the first-level fuselage is hinged to the machine base located at the rear, two lifting members are symmetrically provided at the front end of the first-level fuselage, and both ends of the lifting member are respectively hinged to the first-level fuselage and the machine base located at the front side of the first-level fuselage.

[0016] Furthermore, a handle is provided at the front end of the final-stage fuselage.

[0017] Furthermore, a telescopic tape machine telescopic method, using a telescopic tape machine, comprises the following steps:

[0018] S1. When the multi-stage fuselage is extended, the two lifting members are controlled to retract so that the front end of the first stage fuselage is lower than the rear end thereof;

[0019] S2, start the first speed reducer to make the belt at the top run forward, and the combined force of the multi-stage fuselage moves forward, cooperating with the inclined first-stage fuselage, so that the multi-stage fuselage is unfolded;

[0020] S3, when the multi-stage fuselage moves forward to the right position, the second rack at the rear end drives the driving gear to rotate so that the clamping plates on both sides clamp the next fuselage;

[0021] S31, when the multi-stage fuselage is required to be incompletely unfolded, after the multi-stage fuselage moves forward to the required length and the length required to drive the driving gear is subtracted, the first hand wheel or the second reducer is used to control the driving shaft to rotate so that the first rack is engaged with the driving gear, and as the multi-stage fuselage continues to move forward, the clamping plates on both sides clamp the corresponding next stage fuselage;

[0022] S4. When the multi-stage fuselage is retracted, the two lifting parts are controlled to extend so that the front end of the first-stage fuselage is higher than its rear end, and the first reducer is started to make the tape at the top run backward. The resultant force on the multi-stage fuselage is directed backward, and the multi-stage fuselage is retracted in coordination with the first-stage fuselage tilted backward. When the multi-stage fuselage is retracted into place, the second rack at the front end drives the driving gear to rotate, thereby causing the two clamps to clamp the corresponding next-stage fuselage, so that the entire multi-stage fuselage is fixed to each other.

[0023] The technical solution of the present invention has at least the following advantages and beneficial effects:

[0024] 1. When extending the multi-stage fuselage, control the two lifting parts to retract so that the front end of the first-stage fuselage is lower than its rear end; start the first reducer to make the tape at the top run forward, and the combined force of the multi-stage fuselage moves forward, cooperating with the inclined first-stage fuselage, so that the multi-stage fuselage can be unfolded; when the multi-stage fuselage moves forward to the right position, the second rack at the rear end drives the driving gear to rotate so that the clamps on both sides clamp the next fuselage to fix the entire telescopic belt conveyor. Multi-stage telescopic does not require additional telescopic mechanism, the overall structure is simple and easy to use, and the equipment cost is low; the comprehensive cost-effectiveness of the power and transmission device of the telescopic function of the fuselage is relatively high.

[0025] 2. When the multi-stage fuselage is required to be incompletely unfolded, after the multi-stage fuselage moves forward to the required length and subtracts the length required to drive the driving gear, the first hand wheel or the second reducer is used to control the driving shaft to rotate so that the first rack is engaged with the driving gear, and as the multi-stage fuselage continues to move forward, the clamping plates on both sides clamp the corresponding next-stage fuselage.

[0026] 3. When the multi-stage fuselage contracts, control the two lifting members to extend so that the front end of the first-stage fuselage is higher than its rear end, and start the first reduction gear to make the tape at the top run backward. The resultant force on the multi-stage fuselage is backward. Cooperating with the backward-tilted first-stage fuselage, the multi-stage fuselage contracts. When the contraction is in place, the second tooth rail at the front end drives the driving gear to rotate, and then the two clamping plates clamp the corresponding next-stage fuselage to fix the entire multi-stage fuselage to facilitate transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 The front view structural schematic diagram of a telescopic belt conveyor provided by the present invention;

[0029] Figure 2 The structural schematic diagram of the locking mechanism in a telescopic belt conveyor provided by the present invention;

[0030] Figure 3 is Figure 1 The structural schematic diagram of the cross-section at A-A in;

[0031] Figure 4 is Figure 3 The enlarged schematic diagram of the structure at B in;

[0032] Reference signs: 1, the first-stage fuselage; 11, the driving drum; 12, the third drum; 13, the first reduction gear; 14, the machine base; 15, the lifting member; 2, the last-stage fuselage; 21, the first drum; 22, the second drum; 23, the handle; 3, the secondary fuselage; 4, the tape; 5, the locking mechanism; 51, the mounting seat; 52, the driving rod; 521, the threaded section; 53, the clamping seat; 531, the clamping plate; 54, the guide rod; 55, the driving shaft; 551, the first tooth rail; 552, the second tooth rail; 56, the driving gear; 57, the connecting plate; 58, the second hand wheel disc; 6, the synchronization mechanism; 61, the bearing seat; 62, the driving wheel; 63, the driven wheel; 64, the timing belt; 65, the second reduction gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. The components of the embodiments of the present invention usually described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0035] Referring to Figures 1 to 4 As shown, this embodiment provides a telescopic belt conveyor, including a first-stage fuselage 1 arranged on the ground. When extended, the last-stage fuselage 2 at the farthest position and several intermediate-stage fuselages 3 that can move. The lower-stage fuselage 1 is slidably arranged on the upper-stage fuselage. The inside of the fuselage is hollow, and the fuselage is only sealed by side plates on both sides and at the front and rear ends. A first roller 21 and a second roller 22 are arranged at intervals in the last-stage fuselage 2 and several intermediate-stage fuselages 3. A driving roller 11 and several third rollers 12 are arranged on the first-stage fuselage 1. A first speed reducer 13 is arranged on the first-stage fuselage 1, and the first speed reducer 13 transmits power to the driving roller 11; a belt 4 is wound around the driving roller 11, several third rollers 12, several first rollers 21 and second rollers 22; usually, the first roller 21 is located above the front side of the fuselage, and the second roller 22 is located below the rear side of the fuselage, and the belt 4 is wound in an S shape on the intermediate-stage fuselages 3 and the last-stage fuselage 2.

[0036] It further includes a locking mechanism 5. As Figures 1 - 4 shown, the locking mechanism 5 is arranged on both the first-stage fuselage 1 and several intermediate-stage fuselages 3. The locking mechanism 5 is used to fix the current fuselage to the adjacent fuselage on the side close to the last-stage fuselage 2, that is, to fix the current fuselage to the lower-stage fuselage 1.

[0037] More specifically, as Figure 2As shown in the figure, the locking mechanism 5 includes a mounting base 51, a driving rod 52, a clamping seat 53 and a plurality of guide rods 54. The mounting base 51 is fixed to the corresponding primary fuselage 1 or secondary fuselage 3. The driving rod 52 is rotatably arranged on the mounting base 51. Threaded sections 521 are symmetrically arranged at both ends of the driving rod 52. A plurality of guide rods 54 parallel to the driving rod 52 are arranged at both ends of the mounting base 51. A clamping seat 53 is slidably arranged on the guide rods 54 at both ends of the mounting base 51. The two clamping seats 53 are respectively in threaded cooperation with the two threaded sections 521. Clamping plates 531 are arranged at the tops of the two clamping seats 53. The two clamping plates 531 are located on the left and right sides of the lower-level fuselage 1. Then, by rotating the driving rod 52, the threaded sections 521 symmetrically arranged at both ends of the driving rod 52 cooperate with the two clamping seats 53 to control the synchronous movement of the two clamping seats 53 towards or away from each other, and further control the two clamping plates 531 to clamp or loosen the lower-level fuselage 1; the clamping plates 531 are made of hard steel, and friction plates can also be arranged on the inner sides of the clamping plates 531 to meet daily wear, and then only the friction plates need to be replaced.

[0038] More specifically, as Figure 2 shown in the figure, the locking mechanism 5 further includes a driving shaft 55 and a driving gear 56. The driving shaft 55 is arranged in parallel at the bottom of the lower-level fuselage 1. The driving gear 56 is sleeved on the driving rod 52. A first tooth rail 551 is arranged on the driving shaft 55. Two second tooth rails 552 are also arranged at intervals on the driving shaft 55. The second tooth rails 552 are circumferentially arranged with respect to the first tooth rail 551 around the driving shaft 55. When the driving shaft 55 moves telescopically along with the fuselage it is located in, by rotating the driving shaft 55, the first tooth rail 551 or the second tooth rail 552 is controlled to engage with the driving gear 56 on the upper-level fuselage 1. Specifically in implementation, the driving gear 56 is a turbine, and both the first tooth rail 551 and the second tooth rail 552 are incomplete spiral teeth. The incomplete spiral teeth are originally spiral teeth, but they only account for half or less of the spiral teeth, and multiple teeth on the same tooth rail are all located in the same orientation of the driving shaft 55; the use of the turbine and the incomplete spiral teeth is mainly considered that the driving shaft 55 needs to rotate to switch between the first tooth rail 551 and the second tooth rail 552, and it is set to make it easier for the first tooth rail 551 and the second tooth rail 552 to engage with the driving gear 56 when rotating and switching.

[0039] As Figure 3 and Figure 4 shown in the figure, the first tooth rail 551 covers the entire driving shaft 55. It is mainly used to reserve the distance for the driving clamping seat 53 to clamp when the telescopic tape 4 machine is not fully deployed or deployed at any length. When the first tooth rail 551 rotates to engage with the driving gear 56, the driving rod 52 can be rotated by rotating the driving gear 56 to make the clamping seat 53 clamp or loosen the lower-level fuselage 1, while the two second tooth rails 552 at the front and rear ends of the driving shaft 55 respectively make the clamping seat 53 automatically clamp the lower-level fuselage 1 when the contraction is completed and the extension is completed.

[0040] More specifically, Figure 3 and Figure 4 As shown, it also includes a synchronization mechanism 6, and the synchronization mechanism 6 is arranged between adjacent fuselages. The synchronization mechanism 6 includes a bearing seat 61, a driving wheel 62, a driven wheel 63 and a synchronous belt 64. The bearing seat 61 is arranged at the bottom of the secondary and final fuselages 2, and the driving wheel 62 is rotatably arranged on the bearing seat 61. The driving wheel 62 is sleeved on the driving shaft 55 of the fuselage of this stage and is connected with the driving shaft 55 by a sliding key; the driven wheel 63 is sleeved on the driving shaft 55 on the previous fuselage, and the driving wheel 62 and the driven wheel 63 are connected by a synchronous belt 64. In specific implementation, when the driving shaft 55 on the final fuselage 2 or any of its first fuselages 1 is rotated to switch the first rack 551 or the second rack 552, all the driving shafts 55 are synchronously rotated through multiple synchronization mechanisms 6. There is only one synchronization mechanism 6 for the three-stage fuselage, and there are (N-2) synchronization mechanisms 6 for the N-stage fuselage.

[0041] As one embodiment, a first hand wheel is mounted on the driving shaft 55 at the bottom of the final fuselage 2 , and the driving shaft 55 can be manually driven to rotate by the first hand wheel to adjust the meshing of the first rack 551 or the second rack 552 with the driving gear 56 .

[0042] As another example, Figure 3 and Figure 4 As shown, a second reducer 65 is provided at the bottom of the last-stage fuselage 2, and the output end of the second reducer 65 is connected to the drive shaft 55 on the fuselage of this stage. The second reducer 65 can also be used to drive the drive shaft 55 to rotate, thereby controlling the first rack 551 or the second rack 552 to engage with the drive gear 56. This method is more convenient and is suitable for a telescopic tape machine 4 with a large number of fuselage stages.

[0043] More specifically, Figure 1 and Figure 2 As shown, the locking mechanism 5 also includes a connecting plate 57 and a second hand wheel 58, and one end of a plurality of guide rods 54 away from the mounting seat 51 is fixedly connected to the connecting plate 57; the two ends of the driving rod 52 are respectively rotatably connected to the two connecting plates 57, and two connecting plates 57 are respectively extended from the two ends of the driving rod 52 and are both connected to a second hand wheel 58. The two clamping seats 53 can be clamped by manual control, and the second hand wheel 58 can be used to drive the driving shaft 55 to rotate, thereby controlling the two clamping seats 53 to clamp or release the next stage fuselage 1.

[0044] More specifically, Figures 1 - 3As shown in the figure, it further includes a machine base 14 and a lifting member 15. The lifting member 15 is usually an oil cylinder. Machine bases 14 are provided at both the front and rear ends of the first-stage fuselage 1. The first-stage fuselage 1 is hinged to the machine base 14 at the rear. Two lifting members 15 are symmetrically arranged at the front end of the first-stage fuselage 1. Both ends of the lifting member 15 are respectively hinged to the first-stage fuselage 1 and the machine base 14 on the front side of the first-stage fuselage 1. By means of the two lifting members 15, the attitude of the first-stage fuselage 1 is controlled. When the multi-stage fuselage is deployed, the front end of the first-stage fuselage 1 can be controlled to be lower than its rear end, which is convenient for the extension of the multi-stage fuselage under the action of gravity; or when retracting, the front end of the first-stage fuselage 1 can be made higher than its rear end, and then under the action of gravity, it is convenient for the retraction of the multi-stage fuselage.

[0045] Meanwhile, a handle 23 is provided at the front end of the last-stage fuselage 2. It is also possible to manually pull the handle 23 to assist in the deployment and retraction of the multi-stage fuselage.

[0046] As Figures 1 - 4 shown, a telescoping method for a telescopic belt conveyor, using a telescopic belt conveyor, includes the following steps:

[0047] S1. When extending the multi-stage fuselage, control the two lifting members 15 to contract so that the front end of the first-stage fuselage 1 is lower than its rear end;

[0048] S2. Start the first reduction gear 13 to make the belt 4 at the top run forward. The resultant force on the multi-stage fuselage is forward, cooperating with the inclined first-stage fuselage 1, and then the multi-stage fuselage is deployed;

[0049] S3. When the multi-stage fuselage moves forward to the in-place position, the second tooth rail 552 at the rear drives the drive gear 56 to rotate, and then the clamping plates 531 on both sides clamp the next fuselage;

[0050] S31. When the multi-stage fuselage needs to be incompletely deployed, after the multi-stage fuselage moves forward to the required length and subtracts the length required for driving the drive gear 56, control the drive shaft 55 to rotate through the first handwheel or the second reduction gear 65 to make the first tooth rail 551 engage with the drive gear 56. As the multi-stage fuselage continues to move forward, the clamping plates 531 on both sides clamp the corresponding next-stage fuselage 1;

[0051] S4. When the multi-stage fuselage retracts, control the two lifting members 15 to extend so that the front end of the first-stage fuselage 1 is higher than its rear end, and start the first reduction gear 13 to make the belt 4 at the top run backward. The resultant force on the multi-stage fuselage is backward, cooperating with the backward-inclined first-stage fuselage 1 to make the multi-stage fuselage retract. When retracting to the in-place position, the second tooth rail 552 at the front drives the drive gear 56 to rotate, and then the two clamping plates 531 clamp the corresponding next-stage fuselage 1 to fix the entire multi-stage fuselage to each other.

[0052] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A telescopic belt conveyor, characterized in that, It includes a primary fuselage (1) arranged on the ground, a final-stage fuselage (2) located at the farthest position when extended, and several secondary fuselages (3) with intermediate sections that can move. First rollers (21) and second rollers (22) are arranged at intervals inside the final-stage fuselage (2) and several secondary fuselages (3). A driving roller (11) and several third rollers (12) are arranged on the primary fuselage (1). A first speed reducer (13) is arranged on the primary fuselage (1), and the first speed reducer (13) acts on the driving roller (11) through transmission; a belt (4) is wound around the driving roller (11), several third rollers (12), several first rollers (21) and second rollers (22). It further includes a locking mechanism (5). The locking mechanism (5) is arranged on both the primary fuselage (1) and several secondary fuselages (3). The locking mechanism (5) is used to fix the fuselage where it is currently located to the adjacent fuselage on the side close to the final-stage fuselage (2). The locking mechanism (5) includes a mounting seat (51), a driving rod (52), clamping seats (53) and several guide rods (54). The mounting seat (51) is fixed to the corresponding primary fuselage (1) or secondary fuselage (3). The driving rod (52) is rotatably arranged on the mounting seat (51). Threaded sections (521) are symmetrically arranged at both ends of the driving rod (52). Several guide rods (54) parallel to the driving rod (52) are arranged at both ends of the mounting seat (51). A clamping seat (53) is slidably arranged on each of the guide rods (54) at both ends of the mounting seat (51). The two clamping seats (53) are respectively in threaded engagement with the two threaded sections (521). Clamping plates (531) are arranged at the tops of the two clamping seats (53). The two clamping plates (531) are located on the left and right sides of the next-level fuselage (1).

2. The telescopic tape machine according to claim 1, characterized in that, The locking mechanism (5) further includes a driving shaft (55) and a driving gear (56). The driving shaft (55) is arranged in parallel at the bottom of the next-level fuselage (1). The driving gear (56) is sleeved on the driving rod (52). A first tooth rail (551) is arranged on the driving shaft (55). Two second tooth rails (552) are also arranged at intervals on the driving shaft (55). The second tooth rails (552) are circumferentially arranged with respect to the driving shaft (55) relative to the first tooth rail (551). When the driving shaft (55) moves telescopically with the fuselage where it is located, the first tooth rail (551) or the second tooth rail (552) is controlled to be engaged with the driving gear (56) on the upper-level fuselage (1) by rotating the driving shaft (55).

3. The telescopic tape machine according to claim 2, characterized in that, It further includes a synchronization mechanism (6), and the synchronization mechanism (6) is provided between adjacent fuselages. The synchronization mechanism (6) includes a bearing seat (61), a driving wheel (62), a driven wheel (63) and a timing belt (64). The bearing seat (61) is arranged at the bottom of the secondary and the last-stage fuselage (2). The driving wheel (62) is rotatably arranged on the bearing seat (61). The driving wheel (62) is sleeved on the driving shaft (55) of this stage of fuselage and is connected with the driving shaft (55) by a sliding key; The driven wheel (63) is sleeved on the driving shaft (55) of the previous stage of fuselage. The driving wheel (62) and the driven wheel (63) are connected by the timing belt (64) for transmission.

4. The telescopic tape machine according to claim 3, characterized in that, A first handwheel disc is sleeved on the driving shaft (55) at the bottom of the last-stage fuselage (2).

5. A telescopic tape machine according to claim 3, characterized in that, A second speed reducer (65) is arranged at the bottom of the last-stage fuselage (2). The output end of the second speed reducer (65) is connected with the driving shaft (55) of this stage of fuselage for transmission.

6. A telescopic belt conveyor according to claim 4 or 5, characterized in that, The driving gear (56) is a turbine, and both the first toothed rail (551) and the second toothed rail (552) are incomplete spiral teeth.

7. The telescopic tape machine according to claim 6, characterized in that, The locking mechanism (5) further includes a connecting plate (57) and a second handwheel disc (58). One end of several guide rods (54) far away from the mounting seat (51) is fixedly connected with the connecting plate (57); Both ends of the driving rod (52) are rotatably connected with two connecting plates (57) respectively. Both ends of the driving rod (52) extend out of the two connecting plates (57) and are both connected with a second handwheel disc (58).

8. A telescopic belt conveyor according to claim 7, characterized in that, It further includes a machine base (14) and a jacking member (15). The machine base (14) is arranged at both the front and rear ends of the first-stage fuselage (1). The first-stage fuselage (1) is hinged with the machine base (14) at the rear. Two jacking members (15) are symmetrically arranged at the front end of the first-stage fuselage (1). Both ends of the jacking member (15) are respectively hinged with the first-stage fuselage (1) and the machine base (14) in front of the first-stage fuselage (1).

9. The telescopic tape machine according to claim 8, characterized in that, A handle (23) is arranged at the front end of the last-stage fuselage (2).

10. A telescoping method for a telescopic belt conveyor, using a telescopic belt conveyor as described in claim 9, characterized in that, It includes the following steps: S1. When stretching the multi-stage fuselage, control the two jacking members (15) to contract so that the front end of the first-stage fuselage (1) is lower than the rear end; S2. Start the first speed reducer (13) to make the tape (4) at the top run forward. The resultant force on the multi-stage fuselage is forward. Cooperating with the inclined first-stage fuselage (1), the multi-stage fuselage is thus unfolded; S3. When the multi-stage fuselage moves forward in place, the second toothed rail (552) at the rear end drives the driving gear (56) to rotate, and then the clamping plates (531) on both sides clamp the next fuselage; S31. When multi-stage fuselage needs to be incompletely deployed, after the multi-stage fuselage moves forward to the required length and subtracts the length required for driving the driving gear (56), control the driving shaft (55) to rotate through the first handwheel or the second speed reducer (65) to engage the first tooth rail (551) with the driving gear (56). As the multi-stage fuselage continues to move forward, the clamping plates (531) on both sides clamp the corresponding next-stage fuselage (1). S4. When the multi-stage fuselage contracts, control the two lifting members (15) to extend so that the front end of the first-stage fuselage (1) is higher than its rear end, and start the first speed reducer (13) to make the tape (4) at the top run backward. The resultant force on the multi-stage fuselage is backward. Cooperating with the backward-tilted first-stage fuselage (1), the multi-stage fuselage contracts. When the contraction is in place, the second tooth rail (552) at the front end drives the driving gear (56) to rotate, and then the two clamping plates (531) clamp the corresponding next-stage fuselage (1) to fix the entire multi-stage fuselage to each other.

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