Telescopic belt conveyor

Abstract

The utility model relates to the field of conveyors, and discloses a telescopic belt conveyor which comprises a supporting plate, supporting legs are installed at the four corners of the lower portion of the supporting plate, a driving motor is installed below the supporting plate, the output end of the driving motor penetrates through the side edge of the supporting plate and then is provided with a lead screw, and a threaded sleeve is arranged outside the lead screw in a spiral transmission mode. First inclined rods are rotationally connected to the two sides of the outer portion of the threaded sleeve, upper supporting rollers are installed on the tops of the first inclined rods, lower supporting rollers are rotationally connected to the side face of the threaded sleeve, and the lead screw is driven to rotate through the driving motor, so that the threaded sleeve moving longitudinally is matched with the sliding sleeve to drive the inclined angles of the first inclined rods and the second inclined rods on the two sides to be changed; the top of the first inclined rod drives the upper supporting rollers on the two sides to move in the guide rail frames on the two sides face to face or back to back, the distance value between the upper supporting rollers on the two sides is adjusted, and therefore the conveying length of the conveying belt can be adjusted within a certain adjusting range, and the using adaptability is improved.

Description

Technical Field

[0001] The present application relates to the field of conveyors, and in particular to a retractable belt conveyor. Background Art

[0002] A belt conveyor, also known as a belt conveyor, is a device that uses a continuously moving conveyor belt to convey materials. It is widely used in various industries such as household appliances, electronics, electrical appliances, machinery, tobacco, injection molding, post and telecommunications, printing, food, etc., for the assembly, inspection, debugging, packaging and transportation of objects. The belt conveyor can select different operating modes according to process requirements.

[0003] At present, the positions of the conveyor rollers of the existing belt conveyor are fixed, so that the overall conveying length of the conveyor belt is fixed, which is inconvenient to reasonably adjust the overall conveying length of the conveyor belt according to the actual transportation scenario, and the adaptability during use needs to be improved.

[0004] The above information disclosed in this background art is only used to increase the understanding of the background art of the present application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Summary of the Utility Model

[0005] In order to solve the problem that the overall conveying length of the conveyor belt is fixed, it is inconvenient to reasonably adjust the overall conveying length of the conveyor belt, and the adaptability during use needs to be improved, the present application provides a retractable belt conveyor. The retractable belt conveyor provided by the present application adopts the following technical solutions:

[0006] A retractable belt conveyor includes a support plate. Four corners of the lower part of the support plate are each installed with a support leg. A driving motor is installed below the support plate. The output end of the driving motor penetrates through the side of the support plate and then a lead screw is installed. A threaded sleeve is helically driven on the outside of the lead screw. Two first inclined rods are rotatably connected to both sides of the outside of the threaded sleeve. An upper support roller is installed at the top of the first inclined rod. A lower support roller is rotatably connected to the side of the threaded sleeve. A conveyor belt is jointly sleeved between the two upper support rollers and the lower support roller. Two groups of limiting components are symmetrically arranged on both sides of the upper surface of the support plate. The limiting components can limit the moving paths of the upper support rollers on both sides.

[0007] Preferably, a group of the limiting components includes two support rods and a guide rail frame. The two support rods are symmetrically installed at two corners above the support plate. The guide rail frame is installed between the tops of the two support rods. The outside of the upper support roller penetrates through the inside of the guide rail frame.

[0008] Preferably, a fixed column is fixedly connected to the side of the upper surface of the support plate away from the lead screw. A sliding sleeve is sleeved on the outside of the fixed column. Two second inclined rods are rotatably connected to both sides of the outside of the sliding sleeve. The tops of the two second inclined rods are respectively rotatably connected to the ends of the corresponding upper support rollers.

[0009] Preferably, a second end plate and a first end plate are respectively installed at the middle positions between the two guide rail frames. The lower surface of the second end plate rotates with the top of the lead screw, and the lower surface of the first end plate is fixed to the top of the fixed column.

[0010] Preferably, limit bolts are threadedly connected to both sides of the support plate, and limit round plates are fixedly connected to the bottoms of the limit bolts.

[0011] Preferably, a drive motor is installed at the end of the first inclined rod, and the output end of the drive motor is fixed to one end of the upper support roller on the same side.

[0012] In summary, the present application includes the following beneficial technical effects:

[0013] By driving the lead screw to rotate through the drive motor, the threaded sleeve moving longitudinally cooperates with the sliding sleeve to change the inclination angles of the first inclined rods and the second inclined rods on both sides, so that the top of the first inclined rod drives the upper support rollers on both sides to move towards or away from each other inside the guide rail frames on both sides, adjusting the distance between the upper support rollers on both sides, thereby enabling the conveying length of the conveyor belt to be telescopic within a certain adjustment range, improving the adaptability during use. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the conveyor main body according to the embodiment of the application;

[0015] Figure 2 is a schematic structural diagram of the upper main body of the conveyor according to the embodiment of the application;

[0016] Figure 3 is a schematic structural diagram of the conveyor in a partially sectional state above.

[0017] Description of the reference numerals: 2, support leg; 3, drive motor; 4, limit bolt; 5, limit round plate; 6, support rod; 7, guide rail frame; 8, first end plate; 9, conveyor belt; 10, first inclined rod; 11, threaded sleeve; 12, lead screw; 13, second end plate; 14, support plate; 15, upper support roller; 16, second inclined rod; 17, fixed column; 18, sliding sleeve; 19, lower support roller; 20, drive motor. Detailed Description of the Embodiment

[0018] The following further elaborates on the present application in conjunction with the attached Figures 1 - 3 for a more detailed description.

[0019] The embodiment of the present application discloses a retractable belt conveyor.

[0020] Refer to Figure 1 and Figure 2 as well as Figure 3A retractable belt conveyor includes a support plate 14, and support legs 2 are installed at the four corners below the support plate 14, and universal wheels are installed at the bottom of the support legs 2 to facilitate the change of the use position of the device. At the same time, a driving motor 3 is installed below the support plate 14, and a screw rod 12 is installed after the output end of the driving motor 3 passes through the side of the support plate 14. The screw rod 12 is spirally driven with a threaded sleeve 11 on the outside, and both sides of the outside of the threaded sleeve 11 are rotatably connected to a No. 1 inclined rod 10, and an upper support roller 15 is installed on the top of the No. 1 inclined rod 10, and a lower support roller 19 is rotatably connected to the side of the threaded sleeve 11. A conveyor belt 9 is commonly sleeved between the two upper support rollers 15 and the lower support roller 19, and the output end of the driving motor 3 drives the screw rod 12 to rotate. The rod 12 rotates, and then the rotating screw rod 12 drives the threaded sleeve 11 to move longitudinally, and then the longitudinally moving threaded sleeve 11 can drive the inclination angle of the No. 1 inclined rod 10 and the No. 2 inclined rod 16 on both sides to change, so that the top of the No. 1 inclined rod 10 drives the upper support rollers 15 on both sides to move toward or away from each other inside the guide rail frames 7 on both sides, and adjusts the spacing value of the upper support rollers 15 on both sides, so that the conveying length of the conveyor belt 9 can be extended and retracted within a certain adjustment range. At the same time, two sets of limit assemblies are symmetrically provided on both sides of the upper surface of the support plate 14, and the limit assemblies can limit the moving paths of the upper support rollers 15 on both sides. The limit assemblies ensure that the upper support rollers 15 on both sides can move stably laterally according to the preset trajectory.

[0021] Reference Figure 1 and Figure 3 A set of limiting components includes two support rods 6 and a guide rail frame 7. The two support rods 6 are symmetrically installed at the two corners above the support plate 14. The guide rail frame 7 is installed between the tops of the two support rods 6. The outside of the upper support roller 15 passes through the inside of the guide rail frame 7. A rectangular through groove is opened inside the guide rail frame 7, so that the upper support roller 15 can slide in the rectangular through groove without affecting the normal rotation of the upper support roller 15.

[0022] Reference Figure 2 and Figure 3 In the device, a fixed column 17 is fixedly connected to the upper surface of the support plate 14 on the side away from the screw rod 12, and a sliding sleeve 18 is sleeved on the outside of the fixed column 17, and the side of the sliding sleeve 18 rotates away from one end of the lower support roller 19, and the two sides of the outside of the sliding sleeve 18 are rotatably connected with the second inclined rod 16, and the tops of the second inclined rods 16 on both sides rotate with the corresponding ends of the upper support roller 15, so that the sliding sleeve 18 can slide outside the fixed column 17 and cooperate with the movable threaded sleeve 11 to synchronously drive the first inclined rod 10 and the second inclined rod 16 on both sides to change their angles, thereby ensuring the stability of the spacing change process of the upper support rollers 15 on both sides.

[0023] Reference Figure 2 and Figure 3, at the middle positions of the two guide rail frames 7 in the device, a second end plate 13 and a first end plate 8 are respectively installed. The lower surface of the second end plate 13 rotates with the top of the lead screw 12, and the lower surface of the first end plate 8 is fixed to the top of the fixed column 17, improving the stability when the lead screw 12 and the fixed column 17 are installed on both sides of the upper surface of the support plate 14.

[0024] Refer to Figure 1 , limit bolts 4 are threadedly connected to both sides of the support plate 14 in the device, and a limit circular plate 5 is fixedly connected to the bottom of the limit bolt 4. During use, the limit bolts 4 on both sides are rotated in sequence, so that the bottom of the limit bolt 4 drives the limit circular plate 5 to move downward until it is in close contact with the ground, further realizing the limit below the support plate 14 and ensuring the stability of the device during operation;

[0025] Refer to Figure 1 and Figure 2 and Figure 3 , a driving motor 20 is installed at the end of one side of the first diagonal rod 10, and the output end of the driving motor 20 is fixed to one end of the upper support roller 15 on the same side. By starting the driving motor 20, the output end of the driving motor 20 can drive the upper support roller 15 on the same side to rotate, and cooperate with the other upper support rollers 15 and the lower support rollers 19 to realize the conveying of the conveyor belt 9.

[0026] The implementation principle of an extensible belt conveyor in an embodiment of the present application is as follows:

[0027] During use, the driving motor 3 is started through an external power supply, so that the output end of the driving motor 3 drives the lead screw 12 to rotate. Then, the rotating lead screw 12 drives the threaded sleeve 11 to move longitudinally. Immediately afterwards, the longitudinally moving threaded sleeve 11 cooperates with the sliding sleeve 18 to drive the lower support roller 19 to move longitudinally synchronously, and at the same time, it can also drive the inclination angles of the first diagonal rods 10 and the second diagonal rods 16 on both sides to change, so that the top of the first diagonal rod 10 drives the upper support rollers 15 on both sides to move towards or away from each other inside the two guide rail frames 7, adjusting the distance between the upper support rollers 15 on both sides, so that the conveying length of the conveyor belt 9 can be extended or retracted within a certain adjustment range, improving the adaptability during use.

[0028] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, and can also be the communication inside two components. It can be directly connected. "Upper", "lower", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change;

[0029] Secondly: In the accompanying drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference may be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0030] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

[0031] The above are all the preferred embodiments of this application and do not limit the protection scope of this application accordingly. Therefore, any equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A retractable belt conveyor, including a support plate (14), and support legs (2) are installed at four corners below the support plate (14), and it is characterized in that: A driving motor (3) is installed below the support plate (14); a screw rod (12) is installed after the output end of the driving motor (3) passes through the side of the support plate (14); a threaded sleeve (11) is spirally driven on the outside of the threaded sleeve (11); both sides of the outside of the threaded sleeve (11) are rotatably connected to a first inclined rod (10); an upper support roller (15) is installed on the top of the first inclined rod (10); a lower support roller (19) is rotatably connected to the side of the threaded sleeve (11); a conveyor belt (9) is commonly sleeved between the two upper support rollers (15) and the lower support rollers (19); two groups of limit assemblies are symmetrically provided on both sides of the upper surface of the support plate (14); the limit assemblies can limit the moving paths of the upper support rollers (15) on both sides.

2. The retractable belt conveyor according to claim 1, characterized in that: A set of the limiting components comprises two support rods (6) and a guide rail frame (7), wherein the two support rods (6) are symmetrically mounted at two corners above the support plate (14), the guide rail frame (7) is mounted between the tops of the two support rods (6), and the outside of the upper support roller (15) passes through the inside of the guide rail frame (7).

3. A retractable belt conveyor according to claim 2, characterized in that: A fixed column (17) is fixedly connected to the upper surface of the support plate (14) on the side facing away from the screw rod (12); a sliding sleeve (18) is sleeved on the outside of the fixed column (17); two sides of the outside of the sliding sleeve (18) are rotatably connected to a second inclined rod (16); and the tops of the second inclined rods (16) on both sides rotate with the corresponding ends of the upper support roller (15).

4. A retractable belt conveyor according to claim 3, wherein: A second end plate (13) and a first end plate (8) are respectively installed at the middle positions of the two guide rail frames (7); the lower surface of the second end plate (13) rotates with the top of the screw rod (12), and the lower surface of the first end plate (8) is fixed with the top of the fixing column (17).

5. The retractable belt conveyor according to claim 3, characterized in that: Both sides of the support plate (14) are threadedly connected to the limiting bolts (4), and the bottom of the limiting bolts (4) is fixedly connected to the limiting circular plate (5).

6. The retractable belt conveyor according to claim 3, wherein: A transmission motor (20) is installed at the end of the first diagonal rod (10) on one side, and the output end of the transmission motor (20) is fixed to one end of the upper supporting roller (15) on the same side.

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