Pushing side-dumping type spiral conveyor

Abstract

The invention 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] The invention relates to the technical field of coal mining and conveying equipment, in particular to a push-side unloading screw conveyor. Background Art

[0002] At present, most of the conveying equipment in the coal mine production field is screw conveyor. The screw conveyor is a single-section transmission, which drives the screw body to rotate through the driving device to realize the material transportation.

[0003] Since the design and installation of screw conveyors are usually fixed, their conveying length, conveying angle and their own position cannot be adjusted after installation. However, in the process of coal mining, the terrain is complex and changeable, and the position and conditions of the working surface will constantly change, resulting in the inability of existing screw conveyors to adjust their own structures according to the on-site environment to achieve the best conveying path. Therefore, the current conveying equipment in the coal mining production field has poor site adaptability, especially on uneven surfaces, which in turn leads to the inability to effectively improve the conveying efficiency. In addition, existing screw conveyors can usually only unload at specific unloading points, and cannot unload at any location according to actual needs during the conveying process, resulting in poor operational flexibility. Summary of the invention

[0004] To solve the above technical problems, the present invention provides a push side discharge screw conveyor. In order to have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. This summary is not a general review, nor is it intended to identify key / important components or describe the scope of protection of these embodiments. Its only purpose is to present some concepts in a simple form as a preface to the detailed description that follows.

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

[0006] The present invention provides a push side discharge type screw conveyor, comprising: a driving unit and a plurality of conveying, unloading and pushing units connected in sequence, wherein the adjacent conveying, unloading and pushing units are connected via a universal connection seat;

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

[0008] The conveying and unloading device comprises: a conveying shaft, a trough, and a trough flipping cylinder for driving the trough to perform flipping and unloading, wherein the conveying shaft is located in the trough;

[0009] The material pushing device comprises: a material pushing shovel plate and a shovel plate oil cylinder driving the material pushing shovel plate to move away from the base;

[0010] The universal connecting seat includes: a dumbbell pin, an axle seat, a transmission shaft and a bearing assembly. The two adjacent bases are connected by the dumbbell pin, and the two ends of the axle seat are respectively connected to the two adjacent bases. The transmission shaft is arranged on the axle seat through the bearing assembly, and the two ends of the transmission shaft are connected to the two adjacent conveying shafts through universal joints.

[0011] Furthermore, two connection seat locating pins arranged in parallel are provided on both sides of the upper surface of the base, and positioning connection holes adapted to the connection seat locating pins are opened on both sides of the shaft seat, and the positioning connection holes are oblong holes.

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

[0013] Furthermore, connecting ear seats are arranged on both sides of the base, and the connecting ear seats on two adjacent bases are connected by the dumbbell pin; and the base is also provided with a base pushing ear seat for connecting with a 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 plate, and each of the material pushing shovel plates is sequentially arranged in the base from top to bottom.

[0015] Furthermore, the pushing and pressing device also includes: a pushing rear ear seat and a pushing front ear seat, the pushing rear ear seat is arranged 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 arranged at the front end of the shovel plate body, and the pushing front ear seat is arranged on the shovel plate body; the fixed end of the shovel plate cylinder is hinged to the pushing rear ear seat, and the movable end of the shovel plate cylinder is hinged to the pushing front ear seat, so that when the shovel plate cylinder is extended, the pushing shovel plate is pushed out from the side of the base.

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

[0017] Furthermore, the shaft seat is provided with a material trough positioning groove on a side facing the conveying, unloading and pushing unit, and first transmission connection holes are provided at both ends of the transmission shaft.

[0018] Furthermore, the driving unit includes: a transmission connecting pin, a reducer and a driving source; the power output shaft of the driving source is connected to the reducer, and the conveying shaft in the conveying, unloading and pushing unit arranged in the first place 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 a spiral blade arranged on the conveying shaft, and second transmission connection holes are opened at both ends of the conveying shaft.

[0020] The beneficial effects brought about by the present invention are as follows: a modular design is adopted, and each conveying, unloading and pushing unit is connected in sequence by a universal connecting seat, so that the conveying, unloading and pushing units can realize multi-level expandable connection, and then the length of the conveyor can be adjusted according to actual needs to realize long-distance transportation. At the same time, the overall bending angle of the conveyor can also be adjusted to meet the adaptability to the uneven surface and the front and back curved environment to realize the best conveying path. The structural design of the present invention not only improves the adaptability of the conveyor, thereby improving the conveying efficiency, but also allows unloading at any time and at any location during the conveying process, greatly improving the flexibility of operation and the functionality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0022] Figure 1 It is a structural schematic diagram of a push side discharge type screw conveyor of the present invention;

[0023] Figure 2 yes Figure 1 EE cross-section diagram;

[0024] Figure 3 It is a schematic diagram of the working state of a push side discharge type screw conveyor of the present invention;

[0025] Figure 4 It is a cross-sectional schematic diagram of a push side discharge type screw conveyor of the present invention when it is in a working state;

[0026] Figure 5 is a schematic structural diagram of a drive unit of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the base of the present invention;

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

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

[0030] Fig. 9 It is a structural schematic diagram of a push shovel plate of the present invention;

[0031] Fig.10 yes Fig. 9 CC direction schematic diagram;

[0032] Fig.11 It is a schematic diagram of the structure of the material trough of the present invention;

[0033] Fig.12 yes Fig.11 BB direction schematic diagram;

[0034] Fig.13 It is a structural schematic diagram of the universal connecting seat of the present invention;

[0035] Fig.14 yes Fig.13 D-direction schematic diagram;

[0036] Fig.15 yes Fig.13 HH direction schematic diagram;

[0037] Fig.16 It is a structural schematic diagram of the conveying shaft of the present invention;

[0038] Fig.17 It is a schematic diagram of the structure of the material pushing device of the present invention when pushing materials;

[0039] Fig.18 It is a schematic diagram of the material pushing device of the present invention when it is a multi-layer structure;

[0040] Fig.19 It is a schematic diagram of an application example of the present invention;

[0041] Fig. 20 It is a top view of an application example of the present invention. DETAILED DESCRIPTION

[0042] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be clear that the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] like Figure 1-18As shown, in some illustrative embodiments, a push side discharge screw conveyor is provided, comprising: a driving unit 100 and a plurality of conveying and unloading and pushing units 200 connected in sequence, and adjacent conveying and unloading and pushing units 200 are connected via a universal connection seat 4.

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

[0045] The main part of the conveyor of the present application adopts a modular design, that is, it is composed of a number of conveying, unloading and pushing material units 200 connected in sequence. The overall length of the conveyor can be adjusted by increasing or decreasing the number of conveying, unloading and pushing material units 200 according to actual conveying needs, so as to realize material conveying at various distances. Adjacent conveying, unloading and pushing material units 200 are connected by a universal connection seat 4, so that the conveying path of the conveyor can be bent within a certain range, thereby adapting to different terrains and space restrictions, and changing the conveying path and angle according to the characteristics of the material and the conveying requirements, thereby improving the conveying efficiency.

[0046] The driving unit 100 includes: a transmission connection pin shaft 9 , a reducer 10 and a driving source 11 .

[0047] Since the conveying, unloading and pushing material units 200 are connected in sequence, that is, according to the connection order, the driving unit 100 is arranged at the end of the conveying, unloading and pushing material unit 200 arranged in the first place. The driving source 11 is a driving motor or a motor, and the power output shaft of the driving source 11 is connected to the reducer 10. The conveying material shaft 3 in the conveying, unloading and pushing material unit 200 arranged in the first place is connected to the power output shaft of the reducer 10 through the transmission connection pin shaft 9, so that the power of the driving source 11 is transmitted to the conveying, unloading and pushing material unit 200.

[0048] The main function of the reducer 10 is to reduce the high-speed rotation output by the driving source 11 and convert it into a low-speed and high-torque rotation suitable for the conveyor. After the driving source 11 is started, its power output shaft rotates and transmits power to the reducer 10. The reducer 10 reduces the speed of the driving source 11 and increases the torque at the same time, and then transmits the power to the transmission connection pin 9. The transmission connection pin 9 transmits the power to the conveying material shaft 3 in the conveying unloading and pushing unit 200 arranged in the first position, and the conveying material shaft 3 rotates, thereby realizing the conveying of materials.

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

[0050] The base 1 is the basic support structure of the conveying, unloading and pushing material unit 200, which is used to fix and support the conveying, unloading and pushing material device, that is, the conveying, unloading and pushing material device are both arranged on the base 1, and the unloading operation and the pushing material operation are both performed with the base 1 as a fulcrum to ensure the working stability of the conveying, unloading and pushing material unit 200. The conveying, unloading and pushing material device is located below the conveying, unloading and pushing material device, and its main function is to discharge the material unloaded by the conveying, unloading and pushing material device away from the conveyor to prevent the material from accumulating at the conveyor.

[0051] The material conveying and unloading device comprises: a material conveying shaft 3, a material trough 5, a material trough turning cylinder 8, a turning upper ear seat 30 and a turning lower ear seat 14.

[0052] The trough 5 is a trough-shaped structure with a semicircular cross section and an upper opening, and a discharge port 51 is arranged on the side. The trough 5 is used in conjunction with the conveying shaft 3 and the trough turning cylinder 8. When used in conjunction with the conveying shaft 3, the material is transported, and when used in conjunction with the trough turning cylinder 8, the material is unloaded. The conveying shaft 3 is located in the trough 5. When the driving source 11 drives the conveying shaft 3 to rotate, the material can be driven to move from one side of the trough 5 to the other side.

[0053] The lower flip ear seat 14 is arranged on the upper surface of the base 1, the fixed end of the trough flip cylinder 8 is hinged to the lower flip ear seat 14, the upper flip ear seat 30 is arranged at one end of the trough 5, and the movable end of the trough flip cylinder 8 is hinged to the upper flip ear seat 30. The trough flip cylinder 8, the upper flip ear seat 30 and the lower flip ear seat 14 together form a movable connection mechanism, so that the trough 5 can be flipped under the action of the trough flip cylinder 8, thereby realizing unloading.

[0054] The trough flipping cylinder 8 is used to drive the trough 5 to perform the flipping and unloading action, that is, when the material is transported to the specified position, the trough flipping cylinder 8 is started, and the trough 5 is driven to rotate with the base 1 as the fulcrum, so that the material in the trough 5 is poured out from the discharge port 51 at the other end to complete the unloading action. The design of the conveying and unloading device can not only effectively complete the material conveying and unloading tasks, but also make the unloading process more flexible. It can not only adapt to the curved conveying path, but also can unload at any required position, which improves the convenience of operation, and can quickly discharge the material, reducing the unloading time and improving production efficiency.

[0055] The material pushing device is located below the material conveying and unloading device, and specifically comprises: a material pushing shovel plate 2, a shovel plate oil cylinder 7, a pushing rear ear seat 13 and a pushing front ear seat 17.

[0056] The push shovel plate 2 is composed of a shovel plate body 81 with a U-shaped cross section and an inclined pressure plate 18 arranged at the front end of the shovel plate body 81, wherein the front end of the shovel plate body 81 refers to the side facing the unloaded material, and the push shovel plate 2 pushes the material and compacts the material 32 to ensure that the material 32 is not easily scattered during the pushing process. The shovel plate cylinder 7 is used to drive the push shovel plate 2 to move away from the base 1, and the material 32 is pushed and compacted during the movement, so that the material 32 discharged by the conveying and unloading device is pushed to the conveyor.

[0057] The base 1 is a box structure, and a plurality of box spaces can be arranged in the base 1. The material pushing device includes at least one material pushing shovel plate 2, each material pushing shovel plate 2 corresponds to a shovel plate oil cylinder 7, and each material pushing shovel plate 2 is sequentially arranged in the base 1 from top to bottom, that is, located in each box space. The above structural design enables 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 ear seat 13 is arranged on the inner side wall of the base 1, the front ear seat 17 is arranged on the shovel board body 81, the fixed end of the shovel board cylinder 7 is hinged to the rear ear seat 13, and the movable end of the shovel board cylinder 7 is hinged to the front ear seat 17. The shovel board cylinder 7, the rear ear seat 13 and the front ear seat 17 are hinged to form a movable connection mechanism, so that the pushing shovel board 2 can be pushed outward under the action of the shovel board cylinder 7.

[0059] When the conveying and unloading device completes the unloading of the material, the shovel plate cylinder 7 is started, and when it is extended, the push shovel plate 2 moves away from the base 1, that is, the push shovel plate 2 is pushed out from the side of the base 1, and during the movement, the inclined pressure plate 18 of the push shovel plate 2 pushes and compacts the material 32, pushes the material 32 to the unloading point, avoids the accumulation of the material 32, ensures the smooth flow of the conveying line, and then improves the efficiency of the material 32 transportation, and reduces the downtime caused by the accumulation of the material 32. In this application, the base 1 and the push shovel plate 2 are relative to each other by using the extension and contraction of the shovel plate cylinder 7. When the shovel plate cylinder 7 is extended and drives the push shovel plate 2 to push the material 32, the material 32 will apply a reaction force to the pushing device, so that the conveying and unloading pushing unit can achieve its own translation.

[0060] The structural design of the pushing and pressing device not only effectively solves the problem of scattering and accumulation of the material 32 during the conveying process, but also enables the conveyor in a curved state to quickly and continuously push the material 32, further improving the overall performance of the conveyor. In addition, the shovel body 81 with a U-shaped cross section is closely matched with the base 1 to form a closed box structure. In the process of pushing the material 32, this design can effectively prevent the material 32 from scattering inside the conveyor, ensuring the cleanliness and efficiency of the material 32 conveying.

[0061] The universal connecting seat 4 includes: a dumbbell pin 6, a shaft seat 22, a transmission shaft 23, and a bearing assembly.

[0062] Two adjacent bases 1 are connected by dumbbell pins 6. The dumbbell pins 6 are special connecting pins. After connecting two adjacent bases 1 together, the bases 1 can rotate within a certain range, thereby realizing a flexible connection between the two bases 2, that is, a certain angle between the two bases 1 can be achieved to meet the use in curved and uneven environments.

[0063] The two ends of the shaft seat 22 are respectively connected to the two adjacent bases 1. The specific connection method is: two parallel connection seat positioning pins 16 are arranged on both sides of the upper surface of the base 1, and positioning connection holes 27 adapted to the connection seat positioning pins 16 are opened on both sides of the shaft seat. Adaptation means that the connection seat positioning pins 16 can be inserted into the positioning connection holes 27. The positioning connection holes 27 are oblong holes. The design of the oblong holes allows the connection seat positioning pins 16 to move in a certain direction in the holes, that is, to provide sufficient moving space for the connection seat positioning pins 16, so that the angle between the two bases 1 can be adjusted, and the universal connection seat 4 can adapt to this angle change, thereby realizing the gradual bending arrangement of each conveying, unloading and pushing unit 200.

[0064] The transmission shaft 23 is used to transmit power so that the conveying shafts 3 in the two adjacent conveying, unloading and pushing units 200 can work together. The transmission shaft 23 is arranged on the shaft seat 22 through a bearing assembly, and both ends of the transmission shaft 23 are connected to the two adjacent conveying shafts 3 through universal joints. Through the universal joint connection, while satisfying the rotation transmission, it can also achieve adaptive changes to the height and angle of the ground.

[0065] The structural design of the dumbbell pin 6, the connecting seat locating pin 16, the locating connecting hole 27 and the universal joints at both ends of the transmission shaft 23 enables the universal connecting seat 4 to allow two adjacent conveying, unloading and pushing 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, thereby ensuring the conveying efficiency.

[0066] When the conveyor needs to turn, the conveyor can be bent by adjusting the relative positions between adjacent bases 1, so that the conveyor can be adjusted according to changes in the working surface while maintaining structural stability and efficient conveying capacity, and can achieve bending at different angles. It can adapt to complex conveying paths, thereby improving the overall performance, scope of application and operational flexibility of the conveyor.

[0067] The shaft seat 22 includes a shaft seat bottom plate 222 , a shaft seat body 223 and a support platform 224 .

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

[0069] The shaft seat body 223 is arranged on the shaft seat bottom plate 222, and is used to carry and fix the transmission shaft 23 and support and guide the material trough 5. The shaft seat body 223 is provided with an arc groove 225, and the support platform 224 is arranged in the arc groove 225. The bearing assembly is composed of a bearing body 24 and a bearing pressure cover 25. The bearing body 24 is arranged on the support platform 224, and the bearing pressure cover 25 is used to fix the bearing body 24 to prevent it from shifting during use.

[0070] The shaft seat body 223 in the shaft seat 22 is provided with a trough positioning groove 28 on the side facing the conveying, unloading and pushing 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 edge portions of both ends of the trough 5 can be embedded in the trough positioning groove 28. During the turning 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 process of conveying and unloading materials, and ensuring the efficiency and safety of material conveying.

[0071] The structural design of the shaft seat 22 can not only realize the flexibility of the conveyor, but also ensure stable transmission performance and support stability in a complex working environment, ensuring that the transmission shaft 23 can smoothly transmit power from the drive unit 100 to each conveying, unloading and pushing unit 200 in sequence.

[0072] The first transmission connection holes 26 are formed at both ends of the transmission shaft 23. The conveying shaft 3 includes: a conveying shaft 19 and a spiral blade 20 disposed on the conveying shaft 19, and the second transmission connection holes 21 are formed at both ends of the conveying shaft 19. The first transmission connection hole 26 and the second transmission connection hole 21 are used in conjunction with each other to achieve the connection between the transmission shaft 23 and the conveying shaft 3, thereby achieving power transmission.

[0073] Connecting ear seats 12 are provided on both sides of the base 1, and the connecting ear seats 12 are used to provide connection points with other bases 1, so that multiple bases 1 can be connected into a whole through dumbbell pins 6. The connecting ear seats 12 on two adjacent bases 1 are connected through dumbbell pins 6. When installing, first place the two bases 1 in the correct position to ensure the alignment of the connecting ear seats 12, then insert the dumbbell pins 6 into a pair of aligned holes of the connecting ear seats 12, and finally fix them with locking devices such as nuts and spring pins.

[0074] The base 1 is also provided with a base push ear seat 15 for connecting with the push rod 31. Through the connection with the push rod 31, the base push ear seat 15 enables the entire conveyor to move on the working surface, which is convenient for adjusting the working position or transferring the equipment.

[0075] The conveyor of the present invention adopts a modular design. The modular design allows the conveyor to adjust the overall length of the conveyor by adding or removing the conveying, unloading and pushing unit 200 according to actual work requirements, so as to adapt to different conveying distances. Using the universal connection seat 4, each conveying, unloading and pushing unit 200 can adjust the angle relatively independently, forming a variety of conveying paths so that the conveyor can flexibly cope with curved and uneven surface changes and different conveying requirements. In addition, the modular design makes the maintenance and repair of the conveyor more convenient. It only needs to replace the faulty unit without disassembling the whole.

[0076] The structural design of the present invention enables the conveyor to be quickly assembled and adjusted without stopping, thereby reducing downtime and improving operating efficiency. At the same time, the conveyor can be unloaded at any location, which improves the flexibility of material handling and reduces the residence time of materials during the transportation process.

[0077] like Figure 19-20 As shown, after the coal mining machine 300 cuts the coal, the top of the filling hydraulic support 400 supports the coal seam roof. When it needs to move, first, 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 to push the coal mining machine 300 forward. Then, the filling hydraulic support 400 is lowered, and the top of the filling hydraulic support 400 no longer supports the coal seam roof. At this time, the filling hydraulic support 400 is pulled forward with the coal mining machine 300 as a fulcrum. After it is in place, the filling hydraulic support 400 rises again to support the coal seam roof.

[0078] The push side unloading screw conveyor of the present application is installed under the tail protection beam 600 of the filling hydraulic support, connected with the filling hydraulic support 400 through the push rod 31, and moves with the filling hydraulic support 400 through the extension and contraction of the push cylinder 700 with the filling hydraulic support 400 as the fulcrum. During the movement, the material is unloaded to the back of the filling hydraulic support 400 to achieve filling and compaction of the material at the same time.

[0079] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A push side discharge screw conveyor, characterized in that: include: A driving unit and a plurality of sequentially connected conveying, unloading and pushing units, wherein adjacent conveying, unloading and pushing units are connected via a universal connecting seat; The conveying, unloading and pushing material unit comprises: a base, a conveying and unloading device and a pushing and pressing device; The conveying and unloading device comprises: a conveying shaft, a trough, and a trough flipping cylinder for driving the trough to perform flipping and unloading, wherein the conveying shaft is located in the trough; The material pushing device comprises: a material pushing shovel plate and a shovel plate oil cylinder driving the material pushing shovel plate to move away from the base; The universal connecting seat includes: a dumbbell pin, an axle seat, a transmission shaft and a bearing assembly. The two adjacent bases are connected by the dumbbell pin, and the two ends of the axle seat are respectively connected to the two adjacent bases. The transmission shaft is arranged on the axle seat through the bearing assembly, and the two ends of the transmission shaft are connected to the two adjacent conveying shafts through universal joints.

2. A push side discharge screw conveyor according to claim 1, characterized in that: Two parallel connection seat locating pins are arranged on both sides of the upper surface of the base, and positioning connection holes matched with the connection seat locating pins are opened on both sides of the shaft seat, and the positioning connection holes are oblong holes.

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

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

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

6. A push side discharge screw conveyor according to claim 5, characterized in that: The material pushing device also includes: a pushing rear ear seat and a pushing front ear seat, the pushing rear ear seat is arranged 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 arranged at the front end of the shovel plate body, and the pushing front ear seat is arranged on the shovel plate body; the fixed end of the shovel plate cylinder is hinged to the pushing rear ear seat, and the movable end of the shovel plate cylinder is hinged to the pushing front ear seat, so that when the shovel plate cylinder is extended, the 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 also includes: an upper flip ear seat and a lower flip ear seat; the lower flip ear seat is arranged on the upper surface of the base, and the fixed end of the material trough flip cylinder is hinged to the lower flip ear seat; the material trough is a trough-shaped structure with a semicircular cross-section, the upper flip ear seat is arranged at one end of the material trough, and the movable end of the material trough flip cylinder is hinged to the upper flip ear seat.

8. The push side discharge screw conveyor according to claim 7, characterized in that: The shaft seat is provided with a material trough positioning groove on a side facing the conveying, unloading and pushing unit, and first transmission connection holes are provided at both ends of the transmission shaft.

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

10. The push side discharge screw conveyor according to claim 9, characterized in that: The conveying shaft comprises: a conveying shaft and a spiral blade arranged on the conveying shaft, and second transmission connection holes are arranged at both ends of the conveying shaft.

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