Head telescopic device

Abstract

The utility model provides a head telescopic device, which belongs to the technical field of conveyors and comprises a frame, a transmission device, a driving device and a control device. The control device is used for controlling the driving device to drive; the driving device is connected with the transmission device, and the transmission device is connected with the frame; a head hopper, a head turnabout drum, an upper carrier roller set, movable carrier roller sets and a fixed carrier roller set are connected to the frame, the movable carrier roller sets are connected through chains, and the movable carrier roller sets can be driven by a driving device and a transmission device to stretch out and draw back along with movement of a head telescopic device. The vehicle frame further comprises a vehicle frame extension section, and a straight-through hopper is connected to the vehicle frame extension section. According to the head telescopic device, the straight-through hopper on the frame can be used for guiding materials to directly lead to the next-stage belt conveyor from the previous-stage belt conveyor through the straight-through hopper, so that the materials are prevented from being in contact with and impacting a head turnabout drum and an adhesive tape near the head funnel when being discharged from the head funnel; damage to the head turnabout drum and the adhesive tape is avoided, and it is ensured that materials can be stably and efficiently conveyed.

Description

Technical Field

[0001] The utility model belongs to the technical field of conveyors, and more specifically, relates to a head telescopic device. Background Art

[0002] The head telescopic device is primarily used to adjust the discharge point position at the head of a fixed belt conveyor, enabling flexible switching between multiple discharge points and ensuring precise material distribution to designated areas. The head telescopic device not only significantly reduces the lifting height of the feeder conveyor, thereby reducing the required installed power and belt tension, but also effectively lowers the overall height of the transfer station, thereby reducing the initial investment in the building structure. Through these combined advantages, the head telescopic device demonstrates its significant value in improving the transportation efficiency and economic benefits of belt conveyors.

[0003] In the material conveying process, through-feeding is a common method of conveying materials. It involves the material passing from the upper belt conveyor through the head funnel of the head telescopic device directly into the lower belt conveyor. As the material passes through the head funnel of the head telescopic device, it impacts the internal redirection roller and the belt. This can not only cause the roller structure to deform, affecting its strength and stability, but also damage the rubber layer on the belt surface, reducing its strength and even causing serious consequences such as breakage.

[0004] Therefore, it is necessary to optimize and improve the structure of the telescopic device to avoid the impact of materials on the roller and belt, and ensure that the materials can be transported smoothly and efficiently. Utility Model Content

[0005] The purpose of the utility model is to provide a head telescopic device to prevent the material from damaging the roller and the tape during straight-through feeding.

[0006] To achieve the above-mentioned objectives, the utility model provides a head telescopic device, including a frame, a transmission device, a drive device and a control device; the control device is used to control the drive device to drive; the drive device is connected to the transmission device, and the transmission device is connected to the frame; the frame is connected to a head funnel, a head redirecting roller, an upper roller group, a movable roller group and a fixed roller group, and the movable roller groups are connected by chains. The movable roller group can be extended and retracted as the head telescopic device moves under the drive of the transmission device; the frame also includes a frame extension section, and the frame extension section is connected to a straight-through hopper.

[0007] Furthermore, a buffer roller group is connected to the frame.

[0008] Furthermore, a wheel device is connected to the bottom of the frame, and a track is provided below the wheel device. The frame moves along the track through the wheel device to perform work station conversion.

[0009] Furthermore, a material guide trough is connected to the frame.

[0010] Furthermore, an upper sealing plate device is connected to the frame, and the upper sealing plate device is used to seal the material guide trough.

[0011] Furthermore, the driving device includes a motor, a reducer, a brake, a coupling and a connecting shaft; the brake, the reducer and the coupling are connected in sequence, one end of the connecting shaft is connected to the motor, and the other end passes through the brake, the reducer and the coupling in sequence and is connected to the transmission device; the driving force of the motor is transmitted to the transmission device through the connecting shaft.

[0012] Furthermore, the transmission device includes a gear and a rack; the gear is connected to the connecting shaft; the rack is fixed to the bottom of the frame, and the gear and the rack are engaged with each other.

[0013] Furthermore, the straight-through hopper includes a first shell and a first wear-resistant lining provided on an inner side of the first shell.

[0014] Furthermore, the head funnel includes a second shell and a second wear-resistant lining plate arranged on the inner side of the second shell.

[0015] Furthermore, the control device includes a PLC control system and a travel switch, and the PLC control system controls the moving position of the frame according to a signal sent by the travel switch.

[0016] Compared with the prior art, the present invention has the following technical effects:

[0017] The head telescopic device of the utility model is provided with a frame extension section on the frame, and a straight-through hopper is provided on the frame extension section. When the head telescopic device of the utility model is used for cross-transfer at the unloading point, the material can be guided from the upper belt conveyor through the straight-through hopper directly to the next belt conveyor through the straight-through hopper on the frame, so as to avoid contact and impact of the head redirecting roller and the adhesive belt near the head funnel when the material is discharged from the head funnel, thereby avoiding damage to the head redirecting roller and the adhesive belt, and ensuring that the material can be transported smoothly and efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 A schematic diagram of the overall structure of a head telescopic device provided by an embodiment of the present utility model;

[0020] Figure 2 for Figure 1 Top view of .

[0021] Among them, the reference numerals in the figures are:

[0022] 1. Head hopper, 2. Frame, 3. Head redirecting roller, 4. Wheel assembly, 5. Buffer roller group, 6. Upper roller group, 7. Material guide trough, 8. Drive unit, 9. Upper sealing plate assembly, 10. Mobile roller group, 11. Fixed roller group, 12. Straight-through hopper. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0025] It should be understood that the terms "length", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates otherwise.

[0027] The terms "first" and "second" are used solely for descriptive purposes, to distinguish objects, such as substances, from one another, and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. For example, a first XX could also be referred to as a second XX, and similarly, a second XX could also be referred to as a first XX, without departing from the scope of the embodiments of the present invention. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of such features.

[0028] See also Figure 1 、 Figure 2 Now, a head telescopic device provided by an embodiment of the present utility model is described.

[0029] In one embodiment of the present invention, a head telescopic device of the embodiment of the present invention includes a frame 2, a transmission device, a drive device 8 and a control device; the control device is used to control the drive device 8 to drive; the drive device 8 is connected to the transmission device, and the transmission device is connected to the frame 2; the frame 2 is connected with a head funnel 1, a head redirecting roller 3, an upper roller group 6, a movable roller group 10 and a fixed roller group 11, and the movable roller groups 10 are connected by a chain. The movable roller group 10 can be extended and retracted as the head telescopic device moves under the drive of the drive device 8 and the transmission device; the frame 2 also includes a frame extension section, and the frame extension section is connected with a straight-through hopper 12.

[0030] A head telescopic device of an embodiment of the present invention is provided with a frame extension section on the frame 2, and a straight-through hopper 12 is provided on the frame extension section. When the head telescopic device of the present invention is used for cross-transfer at the unloading point, the material can be guided from the upper-level belt conveyor through the straight-through hopper 12 on the frame to directly pass through the straight-through hopper 12 to the lower-level belt conveyor, thereby preventing the material from contacting and impacting the head redirecting roller 3 and the belt near the head funnel 1 when unloading from the head funnel 1, avoiding damage to the head redirecting roller 3 and the belt, and ensuring that the material can be transported smoothly and efficiently.

[0031] This embodiment Figure 1 、 Figure 2 The displayed frame extension section is connected to two straight-through hoppers 12. In an actual production environment, only one straight-through hopper 12 may be connected to the frame extension section depending on the size of the site.

[0032] Furthermore, a buffer roller group 5 is connected to the frame 2 of this embodiment. The buffer roller group 5 is arranged below the conveyor belt, which can make the material more stable and smooth during transportation, reduce material impact and transportation noise, and improve material transportation efficiency.

[0033] Furthermore, the bottom of the frame 2 of this embodiment is further connected to a wheel device 4, and a track is provided below the wheel device 4. The frame 2 moves horizontally along the track to switch work positions via the wheel device 4. The horizontal movement of the wheel device 4 on the track can make the telescopic action of the frame 2 smoother.

[0034] Furthermore, a material guide trough 7 is connected to the vehicle frame 2 of this embodiment, and the material is guided into the conveyor belt through the material guide trough 7.

[0035] Furthermore, an upper sealing plate device 9 is connected to the vehicle frame 2 of this embodiment. The upper sealing plate device 9 is used to seal the material guide chute 7 to prevent air dust from being generated during the transportation of materials on the material guide chute 7.

[0036] Furthermore, the drive device 8 of this embodiment includes a motor, a reducer, a brake, a coupling, and a connecting shaft. The brake, reducer, and coupling are sequentially connected. One end of the connecting shaft is connected to the motor, and the other end passes through the brake, reducer, and coupling in sequence before connecting to the transmission device. The driving force of the motor is transmitted to the transmission device via the connecting shaft. The drive device 8 is fixed to the ground foundation and can drive the frame 2 to perform telescopic movement.

[0037] Furthermore, the transmission device of this embodiment includes a gear and a rack; the gear is connected to the connecting shaft of the driving device 8; the rack is fixed to the bottom of the frame 2, and the gear and rack are meshed with each other. The rotation of the motor in the driving device 8 drives the gear to rotate, thereby dragging the frame 2 to move.

[0038] Furthermore, the straight-through hopper 12 of this embodiment includes a first housing and a first wear-resistant lining disposed inside the first housing. The first housing can be fabricated from steel plate, and the first wear-resistant lining has good wear resistance. The first housing and the first wear-resistant lining are fixedly connected. The straight-through hopper 12 is connected to the vehicle frame 2, and the connection can be a fixed connection.

[0039] Furthermore, the head hopper 1 of this embodiment includes a second shell and a second wear-resistant lining disposed inside the second shell. The second shell can be made of steel plate, and the second wear-resistant lining has good wear resistance. The second shell and the second wear-resistant lining are fixedly connected. The head hopper 1 is connected to the vehicle frame 2, and the connection method can be fixed.

[0040] Furthermore, the control device of this embodiment includes a PLC control system and a limit switch. The PLC control system controls the movement position of the carriage 2 based on signals from the limit switch. Specifically, when the center lines of the head hopper 1 and the through hopper 12 coincide with the center lines of the belt conveyor at the corresponding material drop points, the limit switch sends a signal, causing the PLC control system to stop and fix the carriage 2 at that position, and then the belt conveyor starts operating.

[0041] It should be noted that the specific arrangement positions or specific connection methods of the head hopper 1, head redirecting roller 3, wheel device 4, buffer roller group 5, upper roller group 6, material guide trough 7, upper sealing plate device 9, movable roller group 10, fixed roller group 11, etc. on the frame 2 in this embodiment are all existing technologies and will not be described in detail in this embodiment.

[0042] In addition, in this embodiment, if the connection or fixing method of the components is not specifically stated, the connection or fixing method can be through bolt fixing, fixed pin fixing, or pin shaft connection commonly used in the prior art, so it will not be described in detail in this embodiment.

[0043] In this embodiment, the drive device 8 is fixed to the ground and drives the frame 2 to move, thereby simultaneously driving the movable roller assembly 10 to extend or retract with the movement of the head telescopic device. The tape from the belt conveyor passes through the movable roller assembly 10 and enters between the buffer roller assembly 5 and the guide chute 7 on the frame 2. It then passes around the head redirecting roller 3 and enters the belt conveyor through the redirecting roller in the middle of the frame 2, forming a closed system for the tape. The driving device 8 drives the rack fixed on the frame 2 through the gear through the motor reducer fixed to the ground, thereby dragging the belt, head funnel 1, head redirecting roller 3, guide trough 7 and middle redirecting roller fixed on the frame 2, and gradually pulling the mobile roller group 10 apart according to the length of the chain. The frame 2 moves on the rail guided by the wheel rim of the wheel device 4. When the center line of the head funnel 1 or the straight-through hopper 12 coincides with the center line of the belt conveyor at the corresponding drop point, the control system controls the frame 2 to stop and fix it at this position, and then the belt conveyor starts to operate.

[0044] The head extension device of this embodiment can be switched to different positions: Figure 1 The material is fed from the left side and discharged to the lower belt conveyor through the head hopper 1; Figure 1 The material is fed from the top and sent to the middle belt conveyor corresponding to the head telescopic device. Figure 1 The material can be discharged from the left side of the Figure 1 The material is fed from the top and discharged directly to the lower belt conveyor through the straight hopper 12.

[0045] Specifically, in one embodiment, when the head telescopic device of this embodiment is in operation, it has the following functions: the material is unloaded from the upper belt conveyor to the middle belt conveyor that cooperates with the head telescopic device, and the material conveying direction is along the Figure 1 From right to left, the upper belt conveyor can unload materials to the middle belt conveyor.

[0046] Specifically, in another embodiment, when the head telescopic device of this embodiment is in operation, when the center line of the head funnel 1 moves to the center position of the right side drop pipe, it has the following functions: the material is discharged via the upper belt conveyor A to the middle belt conveyor matched with the head telescopic device, and the material conveying direction is along Figure 1 From right to left. At this time, the upper belt conveyor A can be unloaded to the middle belt conveyor. At this time, it also has the following functions: the material is unloaded to the lower belt conveyor B through the middle belt conveyor matched with the head telescopic device. At this time, the material conveying direction is along Figure 1 From left to right, the middle belt conveyor can unload to the lower belt conveyor B.

[0047] Specifically, in another embodiment, when the head telescopic device of this embodiment is in operation, when the center line of the head funnel 1 moves to the center position of the left drop pipe, it has the following functions: the material is discharged to the lower belt conveyor A via the middle belt conveyor matched with the head telescopic device, and the material conveying direction is along Figure 1 From left to right. At this time, the middle belt conveyor can discharge materials to the lower belt conveyor A. At this time, it also has the following function: materials are discharged from the upper belt conveyor B through the straight-through hopper 12 to the lower belt conveyor B. When this function is realized, the middle belt conveyor does not need to work.

[0048] Specifically, in another embodiment, when the head extension and retraction device of this embodiment operates, when the centerline of the head hopper 1 moves to the left of the center of the left drop pipe and the centerline of the straight-through hopper 12 is aligned with the drop pipe, the following functions are achieved: material is discharged from the upper belt conveyor A through the straight-through hopper 12 to the lower belt conveyor A, and material is discharged from the upper belt conveyor B through the straight-through hopper 12 to the lower belt conveyor B. The intermediate belt conveyor does not need to be in operation when this function is achieved.

[0049] The head telescopic device of this embodiment can not only realize the cross-transfer of multiple unloading points and reduce the height of the transfer station, but also provide a reliable straight-through method to prevent the material from damaging the head redirecting roller 3 and the belt during straight-through loading.

[0050] The above embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the concept of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A head telescopic device, characterized in that: It includes a frame, a transmission device, a drive device and a control device; the control device is used to control the drive device to drive; the drive device is connected to the transmission device, and the transmission device is connected to the frame; the frame is connected with a head funnel, a head redirecting roller, an upper roller group, a movable roller group and a fixed roller group, and the movable roller groups are connected by a chain. The movable roller group can be extended and retracted as the head retractable device moves under the drive device and the transmission device; the frame also includes a frame extension section, and the frame extension section is connected with a straight-through hopper.

2. A head telescopic device according to claim 1, characterized in that: The frame is also connected with a buffer roller group.

3. A head extension device according to claim 1, characterized in that: The bottom of the frame is also connected to a wheel device, and a track is provided below the wheel device. The frame moves along the track through the wheel device to perform work station conversion.

4. A head extension device according to claim 1, characterized in that: The frame is also connected with a material guide trough.

5. A head extension device according to claim 4, characterized in that: The frame is also connected to an upper sealing plate device, and the upper sealing plate device is used to seal the material guide trough.

6. The head telescopic device according to claim 1, wherein: The driving device includes a motor, a reducer, a brake, a coupling and a connecting shaft; the brake, the reducer and the coupling are connected in sequence, one end of the connecting shaft is connected to the motor, and the other end passes through the brake, the reducer and the coupling in sequence and is connected to the transmission device; the driving force of the motor is transmitted to the transmission device through the connecting shaft.

7. A head extension device according to claim 6, characterized in that: The transmission device includes a gear and a rack; the gear is connected to the connecting shaft; the rack is fixed to the bottom of the frame, and the gear and the rack are meshed with each other.

8. The head telescopic device according to claim 1, wherein: The straight-through hopper includes a first shell and a first wear-resistant lining plate arranged on the inner side of the first shell.

9. The head extension device according to claim 1, wherein: The head funnel includes a second shell and a second wear-resistant lining plate arranged on the inner side of the second shell.

10. A head telescopic device according to any one of claims 1 to 9, characterized in that: The control device includes a PLC control system and a travel switch. The PLC control system controls the moving position of the frame according to a signal sent by the travel switch.

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