Pushing side-dumping type spiral conveyor

Abstract

The utility model discloses a pushing side unloading type spiral conveyor which comprises a driving unit and a plurality of conveying, unloading and pushing units connected in sequence, and every two adjacent conveying, unloading and pushing units are connected through a universal connecting base. The conveying, unloading and pushing unit comprises a base, a conveying and unloading device and a pushing and pressing device; the material conveying and discharging device comprises a material conveying shaft, a material groove and a material groove overturning oil cylinder. The material pushing and pressing device comprises a material pushing shovel plate and a shovel plate oil cylinder; each universal connecting seat comprises a dumbbell pin, a shaft seat, a transmission shaft and a bearing assembly, and the two ends of each transmission shaft are connected with the two adjacent conveying shafts through universal joints. All the conveying, unloading and pushing units are sequentially connected through the universal connecting bases, so that the conveying, unloading and pushing units can achieve multi-stage type expansible connection, then long-distance conveying can be achieved, adaptability to the uneven ground surface and the front-back bending environment can be met, the conveying efficiency is improved, and the conveying cost is reduced. And in the conveying process, the materials can be unloaded at any place at any time, so that the operation flexibility is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of coal mining and conveying equipment technology, and in particular to a push-side unloading screw conveyor. Background Technology

[0002] Currently, most conveying equipment in the coal mining industry uses screw conveyors. Screw conveyors are single-section conveyors, which use a drive device to rotate the screw to transport materials.

[0003] Because the design and installation of screw conveyors are typically fixed, their conveying length, conveying angle, and position cannot be adjusted after installation. However, in coal mining, the terrain is complex and varied, and the location and conditions of the working face are constantly changing. This prevents existing screw conveyors from adjusting their structure to achieve the optimal conveying path based on the site environment. Consequently, current conveying equipment in coal mining has poor site adaptability, especially on uneven surfaces, which hinders the effective improvement of conveying efficiency. Furthermore, existing screw conveyors can usually only unload at specific points, preventing unloading at arbitrary locations during the conveying process based on actual needs, resulting in poor operational flexibility. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a push-side discharge screw conveyor. To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or to describe the scope of protection of these embodiments. Its sole purpose is to present some concepts in a simple form as a prelude to the detailed description that follows.

[0005] The present invention adopts the following technical solution:

[0006] The present invention provides a push-side unloading screw conveyor, comprising: a drive unit and a plurality of conveying and unloading push units connected in sequence, wherein adjacent conveying and unloading push units are connected by universal joints.

[0007] The conveying and unloading unit includes: a base, a conveying and unloading device, and a pushing and pressing device;

[0008] The material conveying and unloading device includes: a material conveying shaft, a material trough, and a material trough tilting cylinder that drives the material trough to perform a tilting and unloading action, wherein the material conveying shaft is located inside the material trough;

[0009] The material pushing device includes: a material pushing shovel and a shovel cylinder that drives the material pushing shovel to move away from the base;

[0010] The universal connector includes a dumbbell pin, a shaft seat, a drive shaft, and a bearing assembly. Two adjacent bases are connected by the dumbbell pin. The two ends of the shaft seat are respectively connected to the two adjacent bases. The drive shaft is mounted on the shaft seat through the bearing assembly. The two ends of the drive shaft are connected to the two adjacent conveyor shafts through universal joints.

[0011] Furthermore, two parallel connecting seat positioning pins are provided on both sides of the upper surface of the base, and positioning connection holes adapted to the connecting seat positioning pins are provided on both sides of the shaft seat, and the positioning connection holes are elongated holes.

[0012] Furthermore, the bearing seat includes: a bearing seat base plate, a bearing seat body, and a support platform; the positioning connection holes are opened on both sides of the bearing seat base plate, the bearing seat body is disposed on the bearing seat base plate, and an arc-shaped groove is opened on the bearing seat body, and the support platform is disposed in the arc-shaped groove; the bearing assembly is composed of a bearing body and a bearing cover, and the bearing body is disposed on the support platform.

[0013] Furthermore, connecting lugs are provided on both sides of the base, and the connecting lugs on two adjacent bases are connected by the dumbbell pin; the base is also provided with base pushing lugs for connecting with the pushing rod.

[0014] Furthermore, the material pushing device is located below the material conveying and unloading device, and the material pushing device includes at least one material pushing shovel, with each material pushing shovel arranged sequentially from top to bottom within the base.

[0015] Furthermore, the pushing and pressing device also includes: a rear pushing lug and a front pushing lug, the rear pushing lug being disposed on the inner side wall of the base; the pushing shovel plate is composed of a shovel plate body with a U-shaped cross-section and an inclined pressure plate disposed at the front end of the shovel plate body, the front pushing lug being disposed on the shovel plate body; the fixed end of the shovel plate cylinder is hinged to the rear pushing lug, and the movable end of the shovel plate cylinder is hinged to the front pushing lug, so that when the shovel plate cylinder extends, the pushing shovel plate is pushed out from the side of the base.

[0016] Furthermore, the material conveying and unloading device also includes: an upper tilting ear seat and a lower tilting ear seat; the lower tilting ear seat is disposed on the upper surface of the base, and the fixed end of the material trough tilting cylinder is hinged to the lower tilting ear seat; the material trough is a trough-shaped structure with a semi-circular cross-section, the upper tilting ear seat is disposed at one end of the material trough, and the movable end of the material trough tilting cylinder is hinged to the upper tilting ear seat.

[0017] Furthermore, the bearing seat has a material trough positioning groove on the side facing the conveying and unloading unit, and the two ends of the drive shaft have first transmission connection holes.

[0018] Furthermore, the drive unit includes: a transmission connecting pin, a reducer, and a drive source; the power output shaft of the drive source is connected to the reducer, and the conveying shaft in the first conveying and unloading pusher unit is connected to the power output shaft of the reducer through the transmission connecting pin.

[0019] Furthermore, the conveying shaft includes: a conveying shaft and helical blades disposed on the conveying shaft, and second transmission connection holes are opened at both ends of the conveying shaft.

[0020] The beneficial effects of this invention are as follows: The modular design utilizes universal connectors to sequentially connect the various conveying and unloading units, enabling multi-level expandable connections. This allows for adjustment of the conveyor length according to actual needs, facilitating long-distance transport. Simultaneously, the overall bending angle of the conveyor can be adjusted to adapt to uneven terrain and varying curvature, achieving the optimal conveying path. This structural design not only enhances the conveyor's adaptability and improves conveying efficiency but also allows for unloading at any location during transport, significantly increasing operational flexibility and equipment functionality. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a push-side unloading screw conveyor according to the present invention;

[0023] Figure 2 yes Figure 1 EE section view;

[0024] Figure 3 This is a schematic diagram of the working state of a push-side unloading screw conveyor according to the present invention;

[0025] Figure 4 This is a cross-sectional schematic diagram of a push-side unloading screw conveyor of the present invention in the working state;

[0026] Figure 5 This is a schematic diagram of the structure of the driving unit of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the base of the present invention;

[0028] Figure 7 yes Figure 6 A schematic diagram of direction F;

[0029] Figure 8 yes Figure 6 A schematic diagram of direction AA;

[0030] Figure 9 This is a schematic diagram of the structure of the pusher blade of the present invention;

[0031] Figure 10 yes Figure 9 CC-direction schematic diagram;

[0032] Figure 11 This is a schematic diagram of the material trough of the present invention;

[0033] Figure 12 yes Figure 11 BB-direction diagram;

[0034] Figure 13 This is a schematic diagram of the universal connector of the present invention;

[0035] Figure 14 yes Figure 13 A schematic diagram of direction D;

[0036] Figure 15 yes Figure 13 A schematic diagram of the HH direction;

[0037] Figure 16 This is a schematic diagram of the material conveying shaft of the present invention;

[0038] Figure 17 This is a schematic diagram of the structure of the material pushing device of the present invention when pushing materials;

[0039] Figure 18 This is a schematic diagram of the material pushing device of the present invention when it has a multi-layer structure;

[0040] Figure 19 This is a schematic diagram of an application example of the present invention;

[0041] Figure 20 This is a top view of an application example of the present invention. Detailed Implementation

[0042] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0043] like Figure 1-18As shown, in some illustrative embodiments, a push-side unloading screw conveyor is provided, including: a drive unit 100 and a plurality of conveying and unloading push units 200 connected in sequence, and adjacent conveying and unloading push units 200 are connected by universal joints 4.

[0044] The drive unit 100 is used to provide power to the conveyor to realize material conveying; the conveying and unloading push unit 200 is used for material conveying, material unloading and material pushing; the universal connector 4 is used to connect the adjacent conveying and unloading push unit 200 to realize the adjustability of the bending angle of the conveyor and the continuity of the conveying power.

[0045] The main body of the conveyor in this application adopts a modular design, consisting of several conveying, unloading, and pushing units 200 connected sequentially. The overall length of the conveyor can be adjusted by increasing or decreasing the number of these units to meet actual conveying needs, enabling material conveying over various distances. Adjacent conveying, unloading, and pushing units 200 are connected by universal joints 4, allowing the conveying path to bend within a certain range, thus adapting to different terrains and spatial constraints. The conveying path and angle can be changed according to the characteristics of the material and conveying requirements, thereby improving conveying efficiency.

[0046] The drive unit 100 includes: a transmission connecting pin 9, a reducer 10, and a drive source 11.

[0047] Since the conveying and unloading units 200 are connected sequentially, i.e., according to the connection order, the drive unit 100 is located at the end of the first conveying and unloading unit 200. The drive source 11 is a drive motor or motor, and the power output shaft of the drive source 11 is connected to the reducer 10. The conveying shaft 3 in the first conveying and unloading unit 200 is connected to the power output shaft of the reducer 10 through the transmission connecting pin 9, thereby transmitting the power of the drive source 11 to the conveying and unloading unit 200.

[0048] The main function of the reducer 10 is to reduce the high-speed rotation output of the drive source 11 and convert it into a low-speed, high-torque rotation suitable for the operation of the conveyor. After the drive source 11 starts, its power output shaft rotates, transmitting power to the reducer 10. The reducer 10 reduces the speed of the drive source 11 while increasing the torque, and then transmits the power to the transmission connecting pin 9. The transmission connecting pin 9 transmits the power to the conveying shaft 3 in the first-positioned conveying and unloading unit 200. The conveying shaft 3 rotates, thereby realizing the conveying of materials.

[0049] The conveying and unloading unit 200 includes: a base 1, a conveying and unloading device, and a pushing and pressing device.

[0050] The base 1 is the basic support structure of the conveying and unloading unit 200, used to fix and support the conveying and unloading device and the pushing device. Both the conveying and unloading device and the pushing device are mounted on the base 1, and the unloading and pushing operations are performed with the base 1 as the fulcrum to ensure the working stability of the conveying and unloading unit 200. The conveying and unloading device is used to convey and unload materials. The pushing device is located below the conveying and unloading device, and its main function is to discharge the material unloaded by the conveying and unloading device and push it away from the conveyor to prevent material accumulation at the conveyor.

[0051] The material conveying and unloading device includes: a conveying shaft 3, a trough 5, a trough tilting cylinder 8, an upper tilting lug 30, and a lower tilting lug 14.

[0052] The material trough 5 is a trough-shaped structure with a semi-circular cross-section and an open top, and a discharge port 51 is provided on the side. The material trough 5 is used in conjunction with the conveyor shaft 3 and the material trough tilting cylinder 8. When used with the conveyor shaft 3, it realizes the transportation of materials; when used with the material trough tilting cylinder 8, it realizes the unloading of materials. The conveyor shaft 3 is located inside the material trough 5. When the drive source 11 drives the conveyor shaft 3 to rotate, it can drive the material to move from one side of the material trough 5 to the other side.

[0053] The lower rotating ear seat 14 is disposed on the upper surface of the base 1. The fixed end of the material trough rotating cylinder 8 is hinged to the lower rotating ear seat 14. The upper rotating ear seat 30 is disposed at one end of the material trough 5. The movable end of the material trough rotating cylinder 8 is hinged to the upper rotating ear seat 30. The material trough rotating cylinder 8, the upper rotating ear seat 30, and the lower rotating ear seat 14 together form a movable connecting mechanism, which allows the material trough 5 to be rotated under the action of the material trough rotating cylinder 8, thereby realizing unloading.

[0054] The trough tilting cylinder 8 is used to drive the trough 5 to perform a tilting and unloading action. When the material is conveyed to the designated position, the trough tilting cylinder 8 is activated, driving the trough 5 to rotate around the base 1, thereby emptying the material from the discharge port 51 at the other end, completing the unloading action. The design of this conveying and unloading device not only effectively completes the material conveying and unloading tasks but also makes the unloading process more flexible. It can adapt to curved conveying paths and can unload at any required location, improving operational convenience and enabling rapid material discharge, reducing unloading time and increasing production efficiency.

[0055] The material pushing device is located below the material conveying and unloading device, and specifically includes: a material pushing shovel 2, a shovel cylinder 7, a rear pushing lug 13, and a front pushing lug 17.

[0056] The pusher shovel 2 consists of a U-shaped shovel body 81 and an inclined pressure plate 18 located at the front end of the shovel body 81. The front end of the shovel body 81 refers to the side facing the unloaded material. The pusher shovel 2 pushes and compacts the material 32, ensuring that the material 32 does not easily scatter during the pushing process. The shovel cylinder 7 is used to drive the pusher shovel 2 to move away from the base 1. During the movement, the material 32 is pushed and compacted, so that the material 32 discharged from the unloading device is pushed onto the conveyor.

[0057] The base 1 has a box-like structure, and multiple internal spaces can be set within the base 1. The material pushing device includes at least one pushing shovel 2, each pushing shovel 2 corresponding to a shovel cylinder 7, and each pushing shovel 2 is arranged sequentially from top to bottom within the base 1, i.e., located in each internal space. The above structural design allows the material pushing device to be used as a multi-layer structure to meet the needs of stacking and pushing materials of different heights.

[0058] The rear pusher seat 13 is disposed on the inner side wall of the base 1, and the front pusher seat 17 is disposed on the shovel plate body 81. The fixed end of the shovel plate cylinder 7 is hinged to the rear pusher seat 13, and the movable end of the shovel plate cylinder 7 is hinged to the front pusher seat 17. The shovel plate cylinder 7, the rear pusher seat 13, and the front pusher seat 17 form a movable connecting mechanism through hinges, so that the pushing shovel plate 2 can be pushed outward under the action of the shovel plate cylinder 7.

[0059] After the material unloading device completes the unloading of materials, the shovel cylinder 7 is activated. When it extends, the pusher shovel 2 moves away from the base 1, that is, the pusher shovel 2 is pushed out from the side of the base 1. During the movement, the inclined pressure plate 18 of the pusher shovel 2 pushes and compacts the material 32, pushing the material 32 to the unloading point, avoiding the accumulation of material 32, ensuring the smooth flow of the conveyor line, thereby improving the efficiency of material 32 conveying and reducing downtime caused by the accumulation of material 32. In this application, the relative movement between the base 1 and the pusher shovel 2 is achieved by the extension and retraction of the shovel cylinder 7. When the shovel cylinder 7 extends and drives the pusher shovel 2 to push the material 32, the material 32 will exert a reaction force on the pushing and pressing device, so that the conveying and unloading pushing unit can achieve its own translation.

[0060] The structural design of the material pushing device not only effectively solves the problem of material 32 scattering and accumulating during the conveying process, but also allows the curved conveyor to quickly and continuously push the material 32, further improving the overall performance of the conveyor. Furthermore, the U-shaped shovel body 81 fits tightly with the base 1, forming a closed box structure. During the pushing process, this design effectively prevents the material 32 from scattering inside the conveyor, ensuring the cleanliness and efficiency of material 32 conveying.

[0061] Universal connector 4 includes: dumbbell pin 6, shaft seat 22, drive shaft 23, and bearing assembly.

[0062] Two adjacent bases 1 are connected by a dumbbell pin 6. The dumbbell pin 6 is a specially designed connecting pin that allows the bases 1 to rotate within a certain range after connecting the two adjacent bases 1, thereby achieving a flexible connection between the two bases 2. This allows the two bases 1 to have a certain angle between them, which can meet the requirements of use in curved and uneven environments.

[0063] The two ends of the bearing seat 22 are connected to two adjacent bases 1 respectively. Specifically, the connection method is as follows: two parallel connecting seat positioning pins 16 are provided on both sides of the upper surface of the base 1, and positioning connection holes 27 adapted to the connecting seat positioning pins 16 are provided on both sides of the bearing seat. "Adapted" means that the connecting seat positioning pins 16 can be inserted into the positioning connection holes 27. The positioning connection holes 27 are elongated holes. The design of the elongated holes allows the connecting seat positioning pins 16 to move in a certain direction within the holes, providing sufficient movement space for the connecting seat positioning pins 16. This allows for angle adjustment between the two bases 1, and also allows the universal connecting seat 4 to adapt to this angle change, thereby enabling the gradual bending arrangement of each conveying and unloading unit 200.

[0064] The drive shaft 23 is used to transmit power, enabling the conveying shafts 3 in two adjacent conveying and unloading units 200 to work together. The drive shaft 23 is mounted on the bearing seat 22 via a bearing assembly. Both ends of the drive shaft 23 are connected to the two adjacent conveying shafts 3 via universal joints. This universal joint connection not only satisfies the rotational transmission requirement but also allows for adaptive changes to ground elevation and angular curvature.

[0065] The structural design of the dumbbell pin 6, the connecting seat positioning pin 16, the positioning connecting hole 27, and the universal joints at both ends of the drive shaft 23 allows the universal connecting seat 4 to allow two adjacent conveying and unloading units 200 to form a certain angle with each other, thereby allowing the conveyor to adjust the bending angle in the horizontal plane without affecting the continuity of the conveying power and the continuity of material conveying, thus ensuring conveying efficiency.

[0066] When the conveyor needs to turn, the bending of the conveyor can be achieved by adjusting the relative position between adjacent bases 1. This allows the conveyor to adjust according to changes in the working surface while maintaining structural stability and efficient conveying capacity, achieving bending at different angles. It can adapt to complex conveying paths and improve the overall performance, applicability, and operational flexibility of the conveyor.

[0067] The bearing seat 22 includes: a bearing seat base plate 222, a bearing seat body 223, and a support platform 224.

[0068] The base plate 222 is the basic part of the bearing 22. It is located between the two bases 1 and plays a supporting and connecting role. The base plate 222 has positioning connection holes 27 on both sides. The positioning connection holes 27 cooperate with the positioning pins 16 on the base 1 to realize the movable connection between the bearing 22 and the base 1.

[0069] The bearing seat body 223 is mounted on the bearing seat base plate 222 and is used to support and guide the transmission shaft 23 and the material trough 5. An arc-shaped groove 225 is formed on the bearing seat body 223, and a support platform 224 is set in the arc-shaped groove 225. The bearing assembly consists of a bearing body 24 and a bearing cover 25. The bearing body 24 is mounted on the support platform 224, and the bearing cover 25 is used to fix the bearing body 24 and prevent it from shifting during use.

[0070] The shaft seat body 223 in the shaft seat 22 has a trough positioning groove 28 on the side facing the conveying and unloading unit 200. The shape and size of the trough positioning groove 28 match the shape and size of the cross-section of the trough 5, so that the two ends of the trough 5 can be embedded in the trough positioning groove 28. During the flipping process of the trough 5, the trough positioning groove 28 can provide support and guidance for the trough 5, ensuring the correct position and stability of the trough 5 during the material conveying and unloading process, and ensuring material conveying efficiency and safety.

[0071] The structural design of the bearing seat 22 not only enables the conveyor to be flexible, but also ensures stable transmission performance and support stability in complex working environments, ensuring that the drive shaft 23 can smoothly transmit power from the drive unit 100 to each conveying and unloading unit 200.

[0072] The drive shaft 23 has first drive connection holes 26 at both ends. The conveying shaft 3 includes a conveying shaft 19 and a spiral blade 20 disposed on the conveying shaft 19. The conveying shaft 19 has second drive connection holes 21 at both ends. The first drive connection holes 26 and the second drive connection holes 21 are used in conjunction to connect the drive shaft 23 and the conveying shaft 3, thereby realizing the transmission of power.

[0073] Connecting lugs 12 are provided on both sides of the base 1. The connecting lugs 12 are used to provide connection points with other bases 1 so that multiple bases 1 can be connected into a whole by dumbbell pins 6. The connecting lugs 12 on two adjacent bases 1 are connected by dumbbell pins 6. During installation, first place the two bases 1 in the correct position, ensuring that the connecting lugs 12 are aligned. Then, insert the dumbbell pins 6 into the holes of a pair of aligned connecting lugs 12. Finally, use locking devices such as nuts or spring pins to fix it.

[0074] The base 1 is also provided with a base pushing lug 15 for connecting with the pushing rod 31. By connecting with the pushing rod 31, the base pushing lug 15 enables the entire conveyor to move on the working surface, which facilitates the adjustment of the working position or the transfer of equipment.

[0075] The conveyor of this invention adopts a modular design. This modular design allows the overall length of the conveyor to be adjusted according to actual working needs by adding or removing conveying and unloading units 200, thereby adapting to different conveying distances. Utilizing the universal joint 4, each conveying and unloading unit 200 can be adjusted at a relatively independent angle, forming multiple conveying paths. This enables the conveyor to flexibly cope with curved, uneven ground and different conveying requirements. Furthermore, the modular design makes maintenance and repair of the conveyor more convenient; only faulty units need to be replaced, without the need for complete disassembly.

[0076] The structural design of this invention enables the conveyor to be quickly assembled and adjusted without stopping the machine, reducing downtime and improving operational efficiency. At the same time, the conveyor can unload materials at any location, improving the flexibility of material handling and reducing the dwell time of materials during the conveying process.

[0077] like Figures 19-20 As shown, after the coal mining machine 300 cuts the coal, the top of the filling hydraulic support 400 supports the roof of the coal seam. When movement is required, firstly, the coal mining machine 300 uses the filling hydraulic support 400 as a fulcrum, and the pushing device 500 of the filling hydraulic support extends, pushing the coal mining machine 300 forward. Then, the filling hydraulic support 400 lowers its height, and the top of the filling hydraulic support 400 no longer supports the roof of the coal seam. At this time, the filling hydraulic support 400 is pulled forward using the coal mining machine 300 as a fulcrum. After reaching its position, the filling hydraulic support 400 rises again to support the roof of the coal seam.

[0078] The push-and-unload screw conveyor of this application is installed below the tail protective beam 600 of the filling hydraulic support 400. It is connected to the filling hydraulic support 400 via a push-moving rod 31. Using the filling hydraulic support 400 as a fulcrum, it moves together with the filling hydraulic support 400 through the extension and retraction of the push-moving cylinder 700. During the movement, the material is unloaded behind the filling hydraulic support 400, achieving filling and compaction of the material.

[0079] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A push-side discharge screw conveyor, characterized in that, include: The system includes a drive unit and several conveying and unloading units connected in sequence, with adjacent conveying and unloading units connected by a universal joint. The conveying and unloading unit includes: a base, a conveying and unloading device, and a pushing and pressing device; The material conveying and unloading device includes: a material conveying shaft, a material trough, and a material trough tilting cylinder that drives the material trough to perform a tilting and unloading action, wherein the material conveying shaft is located inside the material trough; The material pushing device includes: a material pushing shovel and a shovel cylinder that drives the material pushing shovel to move away from the base; The universal connector includes a dumbbell pin, a shaft seat, a drive shaft, and a bearing assembly. Two adjacent bases are connected by the dumbbell pin. The two ends of the shaft seat are respectively connected to the two adjacent bases. The drive shaft is mounted on the shaft seat through the bearing assembly. The two ends of the drive shaft are connected to the two adjacent conveyor shafts through universal joints.

2. The push-side discharge screw conveyor according to claim 1, characterized in that, The upper surface of the base is provided with two parallel connecting seat positioning pins on both sides. The shaft seat is provided with positioning connecting holes on both sides that are adapted to the connecting seat positioning pins, and the positioning connecting holes are elongated holes.

3. A push-side discharge screw conveyor according to claim 2, characterized in that, The bearing seat includes: a bearing seat base plate, a bearing seat body, and a support platform; the positioning connection holes are opened on both sides of the bearing seat base plate, the bearing seat body is disposed on the bearing seat base plate, and an arc-shaped groove is opened on the bearing seat body, and the support platform is disposed in the arc-shaped groove; the bearing assembly is composed of a bearing body and a bearing cover, and the bearing body is disposed on the support platform.

4. A push-side discharge screw conveyor according to claim 3, characterized in that, Connecting lugs are provided on both sides of the base, and the connecting lugs on two adjacent bases are connected by the dumbbell pin; the base is also provided with base pushing lugs for connecting with the pushing rod.

5. A push-side discharge screw conveyor according to claim 4, characterized in that, The material pushing device is located below the material conveying and unloading device. The material pushing device includes at least one material pushing shovel, and each material pushing shovel is arranged sequentially from top to bottom in the base.

6. A push-side discharge screw conveyor according to claim 5, characterized in that, The material pushing device further includes: a rear pushing lug and a front pushing lug, the rear pushing lug being disposed on the inner side wall of the base; the material pushing shovel plate is composed of a shovel plate body with a U-shaped cross-section and an inclined pressure plate disposed at the front end of the shovel plate body, the front pushing lug being disposed on the shovel plate body; the fixed end of the shovel plate cylinder is hinged to the rear pushing lug, and the movable end of the shovel plate cylinder is hinged to the front pushing lug, so that when the shovel plate cylinder extends, the material pushing shovel plate is pushed out from the side of the base.

7. A push-side discharge screw conveyor according to claim 6, characterized in that, The material conveying and unloading device further includes: an upper tilting ear seat and a lower tilting ear seat; the lower tilting ear seat is disposed on the upper surface of the base, and the fixed end of the material trough tilting cylinder is hinged to the lower tilting ear seat; the material trough is a trough-shaped structure with a semi-circular cross-section, the upper tilting ear seat is disposed at one end of the material trough, and the movable end of the material trough tilting cylinder is hinged to the upper tilting ear seat.

8. A push-side discharge screw conveyor according to claim 7, characterized in that, The bearing seat has a material trough positioning groove on the side facing the conveying and unloading unit, and the two ends of the drive shaft have first drive connection holes.

9. A push-side discharge screw conveyor according to claim 8, characterized in that, The drive unit includes: a transmission connecting pin, a reducer, and a drive source; the power output shaft of the drive source is connected to the reducer, and the conveying shaft in the first conveying and unloading pusher unit is connected to the power output shaft of the reducer through the transmission connecting pin.

10. A push-side discharge screw conveyor according to claim 9, characterized in that, The conveying shaft includes a conveying shaft and spiral blades disposed on the conveying shaft, and second transmission connection holes are opened at both ends of the conveying shaft.

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