An external power transmission device for a screw conveyor

By installing a side clamp assembly and a belt drive assembly on the outside of the screw conveyor, the problem of a high center of gravity when the screw conveyor is tilted is solved, thus achieving both equipment stability and ease of operation.

CN224492513UActive Publication Date: 2026-07-14HENAN YINGDA HEAVY IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN YINGDA HEAVY IND CO LTD
Filing Date
2025-08-01
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

When a screw conveyor is set at an incline, its center of gravity is too high, making it prone to tilting and requiring more effort to operate. This is especially true when the motor is located at the top of the material trough, which can lead to instability in the equipment.

Method used

Two sets of side clamping assemblies are installed on the outside of the material trough of the screw conveyor, and shafts are inserted through them. One end of the shaft is fixedly connected to the drive motor, and the other end is connected to the auger screw shaft drive. Combined with the belt drive assembly, it can adapt to auger screws of different sizes and maintain stability.

Benefits of technology

By using an external power transmission device, the lateral tilting caused by the high center of gravity when the screw conveyor is tilted is avoided, thus improving the stability and ease of operation of the equipment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224492513U_ABST
    Figure CN224492513U_ABST
Patent Text Reader

Abstract

The utility model discloses an external power transmission device of screw conveyor relates to screw conveying drive field, the utility model discloses a two groups of side clamping components, a group of belt drive components, a drive motor and a shaft rod, and the shaft rod is arranged in two groups of side clamping components, and the output of drive motor is fixedly connected with one end of the shaft rod, and the belt drive components are set on the group of side clamping components away from drive motor, and the belt drive components are transmission connection with the end of the shaft rod away from drive motor. The utility model discloses one end of the shaft rod is fixedly connected with drive motor, and the other end of the shaft rod is transmission connection with the auger screw rod axle on the upper end of screw conveyor, avoids the high gravity center of screw conveyor inclined setting and leads to the lateral inclination of easy occurrence, and the belt drive components are transmission connection with the auger screw rod axle on the upper end of screw conveyor, and the shaft rod can be transmission connection with the auger screw of various sizes in screw conveyor.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of screw conveyor transmission technology, and in particular relates to an external power transmission device for a screw conveyor. Background Technology

[0002] A screw conveyor works by placing an auger screw inside a material trough, with a motor at one end of the screw. The motor drives the auger screw to rotate, transporting material from one end of the trough to the other. When using a screw conveyor to transport material from a lower to a higher position, the material trough needs to be tilted upwards, and the motor should be positioned at the top of the trough to prevent small particles from entering the motor and causing it to malfunction. Positioning the motor at the top of the trough also raises the center of gravity of the screw conveyor, making it prone to tilting. Furthermore, tilting the screw conveyor requires overcoming the weight of the motor, making the tilting operation laborious.

[0003] To address these issues, we provide an external power transmission device for screw conveyors. Utility Model Content

[0004] The purpose of this utility model is to provide an external power transmission device for a screw conveyor. Two sets of side clamping assemblies are fixedly installed on the outside of the material trough of the screw conveyor. A shaft is inserted through the two sets of side clamping assemblies, with one end of the shaft fixedly connected to a drive motor and the other end of the shaft connected to the auger screw shaft at the upper end of the screw conveyor. This prevents the screw conveyor from tilting due to a high center of gravity. A belt drive assembly is installed at one end of the shaft, connecting it to the auger screw shaft at the upper end of the screw conveyor. The position and size of the auger screw shaft can be adjusted according to different sizes, allowing the shaft to be connected to the auger screw in screw conveyors of various sizes.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is an external power transmission device for a screw conveyor, including two sets of side clamp assemblies, one set of belt drive assembly, one drive motor and one shaft. The shaft passes through the two sets of side clamp assemblies. The output end of the drive motor is fixedly connected to one end of the shaft. The belt drive assembly is set on the set of side clamp assemblies away from the drive motor. The belt drive assembly is connected to the end of the shaft away from the drive motor.

[0007] A further feature of this invention is that the side clamp assembly includes two side clamps and a pull-out seat. A set of pull-out screws is fixedly provided on each of the two sides of the pull-out seat. A screw slide lug is fixedly provided at one end of each side clamp. A set of pull-out screws on each side of the pull-out seat is slidably sleeved in the screw slide lug. A nut is threaded onto the pull-out screw. A shaft sleeve is fixedly installed on one end face of the pull-out seat. The shaft is sleeved in the shaft sleeve.

[0008] A further feature of this invention is that a bearing is provided in the shaft sleeve, and the shaft sleeve is connected inside the bearing.

[0009] A further feature of this invention is that a clamping plate is fixedly provided at the end of the side gripper away from the lead screw slide lug, and the clamping plate extends towards the end away from the shaft sleeve.

[0010] A further configuration of this utility model is that the belt drive assembly includes a belt, a mounting arm, an adapter arm, and a tensioning pulley. The mounting arm is fixedly mounted on a set of side clamp assemblies away from the drive motor. The adapter arm is rotatably mounted on the end of the mounting arm away from the side clamp assemblies, and the rotation axis of the adapter arm is parallel to the shaft axis. The tensioning pulley is rotatably mounted inside the end of the adapter arm away from the mounting arm, and the wheel axis of the tensioning pulley is parallel to the shaft axis. The belt is sleeved on the wheel surface of the tensioning pulley and one end of the shaft.

[0011] A further feature of this invention is that an adapter shaft is fixedly provided on the end face of the mounting arm away from the side clamp assembly, one end of the adapter arm is rotatably mounted on the adapter shaft, and a tightening cap is threaded through one end of the adapter arm on the adapter shaft.

[0012] A further feature of this invention is that an annular groove is provided at one end of the tightening cap near the adapter arm, and a rubber ring is fitted inside the annular groove on the end face of the tightening cap.

[0013] This utility model has the following beneficial effects:

[0014] This invention involves fixing two sets of side clamping assemblies to the outside of the material trough of a screw conveyor, inserting a shaft through the two sets of side clamping assemblies, fixing one end of the shaft to the drive motor, and drivingly connecting the other end of the shaft to the auger screw shaft at the upper end of the screw conveyor. This avoids the screw conveyor from tilting due to its high center of gravity when it is tilted.

[0015] This invention provides a belt drive assembly at one end of the shaft, which is then connected to the auger screw shaft at the top of the screw conveyor. The position and size of the auger screw shaft can be adjusted according to different sizes, allowing the shaft to be connected to the auger screw in screw conveyors of various sizes. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of an external power transmission device for a screw conveyor.

[0018] Figure 2 This is a schematic diagram of the side clamp assembly.

[0019] Figure 3 This is a schematic diagram of the structure of the tie rod and the shaft sleeve.

[0020] Figure 4 This is a structural schematic diagram of the belt drive assembly and the side frame assembly.

[0021] Figure 5 This is an exploded view of the belt drive assembly.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1-Side clamp assembly, 101-Side clamping jaw, 101a-Screw slide lug, 101b-Clamping cross plate, 102-Pull-off seat, 102a-Pull-off screw, 102b-Shaft sleeve, 102b-1-Bearing, 2-Belt drive assembly, 201-Belt, 202-Mounting arm, 202a-Adapter shaft, 202a-1-Tightening cap, 202a-2-Rubber ring, 203-Adapter arm, 204-Tensioning wheel, 3-Drive motor, 4-Shaft. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Example 1

[0025] Please see Figures 1 to 3This utility model relates to an external power transmission device for a screw conveyor, comprising two sets of side clamping assemblies 1, one set of belt drive assemblies 2, one drive motor 3, and one shaft 4. Two sets of side clamping assemblies 1 are fixedly installed on the outside of the material trough of the screw conveyor. A shaft 4 is inserted through the two sets of side clamping assemblies 1, with one end of the shaft 4 fixedly connected to the drive motor 3 and the other end of the shaft 4 connected to the auger screw shaft at the upper end of the screw conveyor. This prevents the screw conveyor from tilting due to a high center of gravity. A belt drive assembly 2 is installed at one end of the shaft 4, connecting it to the auger screw shaft at the upper end of the screw conveyor. The position and size of the auger screw shaft can be adjusted according to different sizes, allowing the shaft 4 to be connected to the auger screw in screw conveyors of various sizes.

[0026] Specifically, the shaft 4 passes through two sets of side clamp assemblies 1, the output end of the drive motor 3 is fixedly connected to one end of the shaft 4, and the belt drive assembly 2 is set on a set of side clamp assemblies 1 away from the drive motor 3, and the belt drive assembly 2 is connected to the end of the shaft 4 away from the drive motor 3.

[0027] Furthermore, the side clamp assembly 1 includes two side clamps 101 and a pull seat 102. A set of pull rods 102a are fixedly provided on each of the two sides of the pull seat 102. A rod lug 101a is fixedly provided at one end of the side clamps 101. A set of pull rods 102a on each side of the pull seat 102 is slidably sleeved in the rod lug 101a. A nut is threaded onto the pull rod 102a. A shaft sleeve 102b is fixedly installed on one end face of the pull seat 102. The shaft 4 is sleeved in the shaft sleeve 102b.

[0028] Furthermore, a bearing 102b-1 is provided in the shaft sleeve 102b, and the shaft 4 is sleeved in the bearing 102b-1.

[0029] Furthermore, a clamping plate 101b is fixed at the end of the side gripper 101 away from the screw slide lug 101a. The clamping plate 101b extends away from the end of the shaft sleeve 102b, so that the two side grippers 101 are attached to the outer side of the material trough of the screw conveyor. The clamping plate 101b of a section of the two side grippers 101 is clamped on both sides of the material trough. The nut on the pull screw 102a is rotated so that the two grippers 101 are tightened synchronously towards the pull seat 102, so that the pull seat 102 is fixedly clamped on the side of the material trough.

[0030] The operation process in this embodiment is as follows:

[0031] The two side grippers 101 are attached to the outer side of the material trough of the screw conveyor. The clamping cross plate 101b of one section of the two side grippers 101 is clamped on both sides of the material trough. The nut on the pull rod 102a is rotated to make the two grippers 101 move closer to the pull seat 102, so that the pull seat 102 is fixedly clamped on the side of the material trough. The belt drive assembly 2 at one end of the shaft 4 is connected to the shaft drive at the upper end of the screw auger. The drive motor 3 drives the shaft 4 to rotate, so that the shaft 4 drives the screw auger to rotate through the belt drive assembly 2. Example 2

[0032] Please see Figures 1 to 5 Based on Embodiment 1, the belt drive assembly 2 includes a belt 201, a mounting arm 202, an adapter arm 203, and a tensioning pulley 204. The mounting arm 202 is fixedly mounted on a side clamp assembly 1, and the adapter arm 203 is rotatably mounted on one end of the mounting arm 202. The belt 201 is sleeved on the shaft 4, and the belt 201 is sleeved on the tensioning pulley 204 at one end of the adapter arm 203 and the upper rotating shaft of the auger screw. Rotating the adapter arm 202 causes the tensioning pulley 204 to tighten the belt 201, ensuring that the belt 201 can rotate, so that the shaft 4 can drive the auger screws of various sizes and specifications to rotate.

[0033] Specifically, the mounting arm 202 is fixedly mounted on a set of side clamp assemblies 1 that are away from the drive motor 3. The adapter arm 203 is rotatably mounted on the end of the mounting arm 202 that is away from the side clamp assembly 1. The rotation axis of the adapter arm 203 is parallel to the rod axis of the shaft 4. The tension wheel 204 is rotatably mounted inside the end of the adapter arm 203 that is away from the mounting arm 202. The wheel axis of the tension wheel 204 is parallel to the rod axis of the shaft 4. The belt 201 is sleeved on the wheel surface of the tension wheel 204 and one end of the shaft 4.

[0034] Furthermore, an adapter shaft 202a is fixedly provided on the end face of the mounting arm 202 away from the side clamp assembly 1. One end of the adapter arm 203 is rotatably mounted on the adapter shaft 202a. The adapter shaft 202a passes through one end of the adapter arm 203 and is threaded with a tightening cap 202a-1.

[0035] Furthermore, an annular groove is provided at one end of the tightening cap 202a-1 near the adapter arm 203, and a rubber ring 202a-2 is attached to the annular groove on the end face of the tightening cap 202a-1. After adjusting the adapter arm 203, the tightening cap 202a-1 is rotated to press the rubber ring 202a-2 against the adapter arm 203, thereby locking the rotation angle of the adapter arm 203.

[0036] The operation process in this embodiment is as follows:

[0037] Attach belt 201 to the upper rotating shaft of the auger screw, rotate the adjusting adapter arm 203 to make the tension wheel 204 tighten belt 201, ensuring that belt 201 can rotate, so that shaft 4 can drive auger screws of various sizes and specifications to rotate; after adjusting the adapter arm 203, rotate the top tightening cap 202a-1 to make the rubber ring 202a-2 press the adapter arm 203, locking the rotation angle of the adapter arm 203.

[0038] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A spiral conveyor external power transmission device, comprising two groups of side clamping assemblies (1), a group of belt drive assemblies (2), a drive motor (3) and a shaft rod (4), characterized in that: The shaft rod (4) is arranged in the two groups of side clamping assemblies (1), one end of the output end of the driving motor (3) is fixedly connected with the shaft rod (4), the belt transmission assembly (2) is arranged on one group of side clamping assemblies (1) away from the driving motor (3), and the belt transmission assembly (2) is in transmission connection with one end of the shaft rod (4) away from the driving motor (3).

2. An external power transmission device for a screw conveyor according to claim 1, characterized in that: The side clamping assembly (1) comprises two side clamping jaws (101) and a counter-pulling seat (102), one group of counter-pulling lead screws (102a) is fixedly arranged on the two side surfaces of the counter-pulling seat (102) respectively, one end of the side clamping jaw (101) is fixedly provided with a lead screw sliding ear (101a), and one group of counter-pulling lead screws (102a) on each side of the counter-pulling seat (102) is slidably sleeved in the lead screw sliding ear (101a) respectively. The counter-pulling lead screw (102a) is screwed with a nut, the counter-pulling seat (102) is fixedly installed with a shaft rod sleeve (102b) on the end face of one end, and the shaft rod (4) is sleeved in the shaft rod sleeve (102b).

3. An external power transmission for a screw conveyor according to claim 2, characterized in that: The shaft rod sleeve (102b) is provided with a bearing (102b-1), and the shaft rod (4) is sleeved in the bearing (102b-1).

4. A power transmission device for an external drive screw conveyor according to claim 3, characterized in that: One end of the side clamping jaw (101) away from the lead screw sliding ear (101a) is fixedly provided with a clamping horizontal plate (101b), and the clamping horizontal plate (101b) extends away from the shaft rod sleeve (102b).

5. A power transmission device for external use in a screw conveyor according to claim 1, characterized in that: The belt transmission assembly (2) comprises a belt (201), a mounting arm (202), an adapter arm (203) and a tensioning wheel (204), the mounting arm (202) is fixedly installed on one group of side clamping assemblies (1) away from the driving motor (3), the adapter arm (203) is rotatably installed on one end of the mounting arm (202) away from the side clamping assembly (1), the rotating axis of the adapter arm (203) is parallel to the rod axis of the shaft rod (4), the tensioning wheel (204) is rotatably installed in one end of the adapter arm (203) away from the mounting arm (202), the wheel axis of the tensioning wheel (204) is parallel to the rod axis of the shaft rod (4), and the belt (201) is sleeved on the wheel surface of the tensioning wheel (204) and one end of the shaft rod (4).

6. An external power transmission for a screw conveyor according to claim 5, characterized in that: One end of the mounting arm (202) away from the side clamping assembly (1) is fixedly provided with an adapter shaft (202a), one end of the adapter arm (203) is rotatably installed on the adapter shaft (202a), and the adapter shaft (202a) is screwed with a tight cap (202a-1) penetrating through one end of the adapter arm (203).

7. An external power drive for a screw conveyor as claimed in claim 6, characterized in that: The tight cap (202a-1) is provided with an annular groove on one end close to the adapter arm (203), and a rubber ring (202a-2) is attached in the annular groove of the end face of the tight cap (202a-1).