Screw conveyer of concrete mixing plant
By introducing a filter plate and threaded rod structure into the screw conveyor, the problems of screening large particles of sand and gravel and cleaning impurities are solved, ensuring the efficient operation of the concrete mixing plant.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-03-31
AI Technical Summary
Existing screw conveyors cannot effectively screen large particles of sand and gravel, resulting in reduced mixing efficiency, and failure to clean impurities in time can lead to blockage of the feed inlet.
A screw conveyor for a concrete mixing plant was designed, which adopts a filter plate and threaded rod structure. The rotation of the threaded rod drives the push plate to move. The push plate cooperates with the mounting plate and sliding rod to realize the automatic cleaning of impurities. A scraper prevents impurities from adhering, and a guide plate and a collection box are set to collect impurities.
It achieves effective filtration of large particles of sand and gravel and timely removal of impurities, prevents blockage, improves conveying efficiency, and maintains the normal operation of the conveyor.
Smart Images
Figure CN224062051U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of concrete production, concretely to a spiral conveyor of concrete mixing station. BACKGROUND
[0002] The core component of the spiral conveyor is a rotating shaft with spiral blades, commonly known as a spiral shaft. When the spiral shaft starts to rotate under the drive of the driving device, the friction between the blades and the material generates a forward thrust on the material. At the same time, due to the rotation of the spiral blades, the material is continuously lifted upwards and conveyed forward along the direction of the spiral shaft.
[0003] The existing spiral conveyor, when in operation, allows the concrete raw materials to enter the interior of the conveyor through the feed inlet. However, when the raw material sand particles are too large, it will affect the mixing efficiency, thereby existing the problem of being unable to screen the raw material particles. Moreover, if the filtered sand impurities are not cleaned in time, it will block the feed inlet of the conveyor. SUMMARY
[0004] The utility model discloses a spiral conveyor of concrete mixing station to solve the problem in the background art.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a spiral conveyor of concrete mixing station, including conveyor, the upside of one end of conveyor is fixedly connected with feed box, the inside of feed box is fixedly connected with filter plate, the inside of feed box is fixedly connected with connecting rod, the outer side of connecting rod is slidably connected with push board, the inside screw thread connection of push board other end has screw rod, the inner wall rotation of screw rod one end is connected with feed box, the inside slide of both sides of feed box is connected with second sliding rod, the fixed connection of both sides second sliding rod faces one side has connecting piece, the other end of second sliding rod is fixedly connected with mounting piece, the lower part of mounting piece is fixedly connected with baffle, the inside slide of baffle is connected in feed box, the outer side of screw rod other end is equipped with first transmission belt that penetrates feed box, the inside sleeve of first transmission belt other side has first rotation axis, the outer side rotation of first rotation axis one end is connected with feed box, the fixed connection of first rotation axis other end has connecting gear, the outer side of connecting gear is engagedly connected with rotating disc, the middle fixed connection of rotating disc other side has second rotation axis, the outer side of feed box is fixedly connected with first mounting bracket, the outer side of conveyor is fixedly connected with second mounting bracket, the outer side of second mounting bracket is fixedly connected with motor, the outer side sleeve of motor output is equipped with second transmission belt, the inside sleeve of second rotation axis penetrates first mounting bracket in second transmission belt.
[0006] Preferably, the rotating disc is fixedly connected with an outer gear ring on the outside, and an inner gear is fixedly connected in the middle of the rotating disc, the inner gear and the outer gear ring are symmetrically distributed, and the inner gear and the outer gear ring are engaged with the connecting gear.
[0007] Preferably, the pushing plate is provided with two groups of lifting grooves in the inside, lifting pieces are slidably connected in the lifting grooves, the first sliding rod is fixedly connected to the lower part of the lifting piece, the first sliding rod penetrates the pushing plate and is fixedly connected with a scraper, the first spring is fixedly connected between the lifting piece and the lifting groove, and the first spring is sleeved on the outside of the first sliding rod.
[0008] Preferably, the second spring is fixedly connected between the mounting piece and the outer wall of the feeding box, and the second spring is sleeved on the outside of the second sliding rod.
[0009] Preferably, the feeding box is fixedly connected with two groups of guide plates on the two sides in the inside, and the guide plates are opposite to the upper parts of the connecting rods and the threaded rods.
[0010] Preferably, the feeding box is fixedly connected with a recovery box on the two sides, and the recovery box is opposite to the lower part of the baffle.
[0011] Compared with the prior art, the utility model has the advantages that:
[0012] 1. When the threaded rod rotates, the pushing plate moves along the connecting rod left and right, thereby pushing the sand and stones filtered by the filter plate to the two sides of the feeding box, the pushing plate drives the second sliding rod to move through the mounting piece, the baffle is separated from the inside of the feeding box through the connecting piece, impurities are conveniently discharged, the concrete entering the conveyor can be filtered, impurities such as sand and stones are prevented from entering the conveyor, and the impurities on the upper part of the filter plate can be cleaned in time to prevent too much impurities from accumulating.
[0013] 2. The first spring pulls the lifting piece, the scraper is tightly attached to the upper part of the filter plate through the first sliding rod, thereby preventing impurities from adhering to the filter plate, and small impurities are cleaned. DRAWINGS
[0014] Figure 1 It is a first perspective three-dimensional structure schematic view of the utility model;
[0015] Figure 2 It is a second perspective feeding box structure sectional view of the utility model;
[0016] Figure 3 It is a third perspective rotating disc structure schematic view of the utility model;
[0017] Figure 4 It is a fourth perspective pushing plate structure sectional view of the utility model.
[0018] In the figure: 1, conveyor; 2, feed box; 3, connecting rod; 4, threaded rod; 5, push plate; 6, first sliding rod; 7, scraper; 8, baffle; 9, second sliding rod; 10, connecting piece; 11, mounting piece; 12, first spring; 13, lifting groove; 14, lifting piece; 15, second spring; 16, first transmission belt; 17, first rotating shaft; 18, connecting gear; 19, rotating disc; 20, inner gear; 21, outer tooth ring; 22, first mounting frame; 23, second rotating shaft; 24, second transmission belt; 25, second mounting frame; 26, motor; 27, filter plate; 28, guide plate; 29, recovery box. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0020] Please refer to Figures 1-4The utility model provides a technical scheme: a concrete mixing plant screw conveyor, including conveyor 1, the upper side fixed welding of conveyor 1 one end has feeding box 2, and the concrete has feeding box 2 and enters the conveyor 1, and the concrete is sent, and the inside fixed welding of feeding box 2 has filter plate 27, prevents the sand and stone and enters the conveyor 1, and the influence conveying efficiency, the inside fixed welding of feeding box 2 has connecting rod 3, and the outer side sliding installation of connecting rod 3 has push board 5, and the inside screw thread installation of push board 5 another end has threaded rod 4, and one end of threaded rod 4 is connected with the rotary joint of feeding box 2 inner wall, when threaded rod 4 rotates, drives push board 5 and moves along connecting rod 3 left and right, to push the sand and stone of filter plate 27 to the both sides of feeding box 2, and the inside sliding installation of both sides of feeding box 2 has second sliding rod 9, and the both sides second sliding rod 9 face each other one side fixed welding has connecting piece 10, and the other end fixed welding of second sliding rod 9 has mounting piece 11, and the lower fixed welding of mounting piece 11 has baffle 8, and baffle 8 sliding installation is in feeding box 2, and push board 5 moves through mounting piece 11 and drives second sliding rod 9, and connecting piece 10 drives baffle 8 and separates from the inside of feeding box 2, and the impurity is conveniently discharged, and the other end of threaded rod 4 penetrates the outside sleeve of feeding box 2 and is equipped with first transmission belt 16, and the inside sleeve of first transmission belt 16 other side is equipped with first rotary shaft 17, and one end of first rotary shaft 17 is connected with the rotary joint of feeding box 2 outside, and the other end fixed welding of first rotary shaft 17 has connecting gear 18, and the outside engagement connection of connecting gear 18 has rotary disc 19, and the other side middle fixed welding of rotary disc 19 has second rotary shaft 23, and the outside fixed welding of feeding box 2 has first mounting bracket 22, and the outside fixed welding of conveyor 1 has second mounting bracket 25, and the flange installation of second mounting bracket 25 has motor 26, and motor 26 drives the rotation of transport screw rod in conveyor 1, realizes the transport of concrete, and the outside sleeve of motor 26 output end is equipped with second transmission belt 24, and second rotary shaft 23 penetrates first mounting bracket 22 and is equipped in second transmission belt 24 inside, and when motor 26 works, rotates through second transmission belt 24 and drives second rotary shaft 23, to drive rotary disc 19 rotation, and rotary disc 19 passes through engagement connection gear 18, drives first rotary shaft 17 rotation, and first rotary shaft 17 controls threaded rod 4 rotation through first transmission belt 16;
[0021] The outer gear ring 21 is fixedly welded inside the outer side of the rotating disc 19, the internal gear 20 is fixedly welded inside the middle side of the rotating disc 19, the internal gear 20 and the outer gear ring 21 are symmetrically distributed in gear, the internal gear 20 and the outer gear ring 21 are engaged with the connecting gear 18, when the rotating disc 19 rotates, the internal gear 20 and the outer gear ring 21 are engaged with the connecting gear 18 respectively, thereby realizing the reciprocating rotation of the first rotating shaft 17, realizing the reciprocating rotation of the threaded rod 4, thereby driving the left and right movement of the push plate 5; two groups of lifting grooves 13 are formed in the inside of the push plate 5, the lifting piece 14 is slidably connected inside the lifting groove 13, the first sliding rod 6 is fixedly welded at the lower part of the lifting piece 14, the first sliding rod 6 penetrates the push plate 5 and is fixedly welded with the scraper 7, the first spring 12 is fixedly welded between the lifting piece 14 and the lifting groove 13, the first spring 12 is sleeved outside the first sliding rod 6, the first spring 12 pulls the lifting piece 14, and the scraper 7 is tightly attached to the upper part of the filter plate 27 through the first sliding rod 6, so that impurities are prevented from adhering to the filter plate 27; the second spring 15 is fixedly welded between the mounting piece 11 and the outer wall of the feeding box 2, the second spring 15 is sleeved outside the second sliding rod 9, the second spring 15 pulls the mounting piece 11, and the baffle 8 enters the feeding box 2, preventing concrete from leaking; two groups of guide plates 28 are fixedly welded inside the feeding box 2, the guide plates 28 are opposite to the upper parts of the connecting rod 3 and the threaded rod 4, preventing concrete from directly falling on the connecting rod 3 and the threaded rod 4; the recovery box 29 is fixedly welded on the two sides of the feeding box 2, the recovery box 29 is opposite to the lower part of the baffle 8, so that the impurities pushed out of the feeding box 2 enter the recovery box 29, and the impurities such as sand and gravel are recovered.
[0022] Working principle: when the motor 26 works, the second transmission belt 24 drives the second rotating shaft 23 to rotate, thereby driving the rotating disc 19 to rotate, when the rotating disc 19 rotates, the internal gear 20 and the outer gear ring 21 are engaged with the connecting gear 18 respectively, thereby realizing the reciprocating rotation of the first rotating shaft 17, the first rotating shaft 17 controls the rotation of the threaded rod 4 through the first transmission belt 16, when the threaded rod 4 rotates, the push plate 5 moves along the connecting rod 3 left and right, thereby pushing the sand and gravel filtered by the filter plate 27 to the two sides of the feeding box 2, the push plate 5 drives the second sliding rod 9 to move through the mounting piece 11, the connecting piece 10 drives the baffle 8 to separate from the inside of the feeding box 2, facilitating the discharge of impurities, when the push plate 5 leaves, the second spring 15 pulls the mounting piece 11, so that the baffle 8 enters the feeding box 2, preventing concrete from leaking.
[0023] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0024] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.
Claims
1. A concrete plant screw conveyor comprising a conveyor (1), characterized in that: The feeding box (2) is fixedly connected to one end of the conveyor (1), the filter plate (27) is fixedly connected inside the feeding box (2), the connecting rod (3) is fixedly connected inside the feeding box (2), the push plate (5) is slidably connected to the outer side of the connecting rod (3), the threaded rod (4) is threadedly connected to the other end inside the push plate (5), one end of the threaded rod (4) is rotatably connected with the inner wall of the feeding box (2), the second sliding rod (9) is slidably connected inside the feeding box (2) on both sides, the connecting piece (10) is fixedly connected to the side facing each other of the second sliding rod (9) on both sides, the mounting piece (11) is fixedly connected to the other end of the second sliding rod (9), the baffle (8) is fixedly connected to the lower part of the mounting piece (11), the baffle (8) is slidably connected inside the feeding box (2), the first transmission belt (16) is sleeved on the outer side of the threaded rod (4) penetrating the feeding box (2), the first transmission belt (16) is internally sleeved on the other side of the first rotating shaft (17), one end of the first rotating shaft (17) is rotatably connected with the outer side of the feeding box (2), the connecting gear (18) is fixedly connected to the other end of the first rotating shaft (17), the rotating disc (19) is meshingly connected to the outer side of the connecting gear (18), the second rotating shaft (23) is fixedly connected to the other side of the rotating disc (19), the first mounting frame (22) is fixedly connected to the outer side of the feeding box (2), the second mounting frame (25) is fixedly connected to the outer side of the conveyor (1), the motor (26) is fixedly connected to the outer side of the second mounting frame (25), the second transmission belt (24) is sleeved on the outer side of the output end of the motor (26), the second rotating shaft (23) is sleeved inside the second transmission belt (24) penetrating the first mounting frame (22).
2. A concrete plant screw conveyor as claimed in claim 1, characterized in that: The outer gear ring (21) is fixedly connected to the inner side of the rotating disc (19), the inner gear (20) is fixedly connected to the middle side of the rotating disc (19), the inner gear (20) and the outer gear ring (21) are symmetrically distributed, and the inner gear (20) and the outer gear ring (21) are engaged with the connecting gear (18).
3. A concrete plant screw conveyor as defined in claim 1 wherein: The lifting groove (13) is formed in the push plate (5), the lifting piece (14) is slidably connected in the lifting groove (13), the first sliding rod (6) is fixedly connected to the lower part of the lifting piece (14), the scraper (7) is fixedly connected to the first sliding rod (6) penetrating the push plate (5), the first spring (12) is fixedly connected between the lifting piece (14) and the lifting groove (13), and the first spring (12) is sleeved on the outer side of the first sliding rod (6).
4. A concrete plant screw conveyor as claimed in claim 1, wherein: The second spring (15) is fixedly connected between the mounting piece (11) and the outer wall of the feeding box (2), and the second spring (15) is sleeved on the outer side of the second sliding rod (9).
5. A concrete plant screw conveyor as claimed in claim 1, wherein: Two groups of guide plates (28) are fixedly connected inside the feeding box (2) on both sides, and the guide plates (28) face the upper parts of the connecting rod (3) and the threaded rod (4).
6. A concrete plant screw conveyor as claimed in claim 1, wherein: The recovery box (29) is fixedly connected to the feeding box (2) on both sides, and the recovery box (29) faces the lower part of the baffle (8).