Concrete aggregate conveying equipment

Abstract

Concrete aggregate conveying equipment comprises a feeding cylinder, a screening cylinder connected with the feeding cylinder, a control unit connected to the side wall of the feeding cylinder in a sliding mode and used for controlling a connecting opening between the feeding cylinder and the screening cylinder to be closed / opened, and a first screening unit arranged in the screening cylinder. Through the structural arrangement of the control unit and the first screening unit, the device is of a closed structure, and the problems of dust raising and the like cannot occur; meanwhile, driving elements do not exist in the device, and the device has the advantages of being simple in structure and low in failure rate.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete equipment, and in particular relates to concrete aggregate conveying equipment. Background Art

[0002] Concrete refers to an artificial stone made by mixing cement as the main cementitious material with water, sand, gravel, and chemical admixtures and mineral admixtures when necessary, in appropriate proportions, and through uniform mixing, compacting, forming, and curing and hardening. Concrete has good workability, and buildings made of concrete have good strength and rigidity. The production cost of concrete is low, so concrete is widely used in people's construction.

[0003] Different concretes require sand of different sizes. During the operation of current sand screening devices, a large amount of sand is put into the sand screening equipment at one time. The agglomerated sand often blocks the screen holes of the screen. At the same time, a large amount of agglomerated sand raw materials cannot be fully utilized, which reduces the utilization rate of the raw materials and the practicality of the device. Therefore, it is necessary to design a concrete mortar raw material screening equipment to solve this problem.

[0004] The document with authorization announcement number CN220386802U discloses a concrete mortar raw material screening equipment, including a support plate, a material guide trough, a suspension, a transmission assembly, a drive assembly, a transmission mechanism, a dispersion plate, a screen plate, a sealing plate and a crushing blade. When the device is in use, the drive assembly drives the transmission assembly and the transmission mechanism to operate, and at the same time drives the crushing blade and the dispersion plate to rotate. The transmission assembly drives the sealing plate to intermittently block the discharge port, so that the raw materials intermittently fall into the crushing barrel, and the agglomerated raw materials are finely crushed by the crushing blades. The crushed raw materials fall from the crushing barrel, and the dispersion plate at the bottom rotates. Under the action of centrifugal force, the raw materials are dispersed and fall on the screen plate to avoid raw material accumulation. The transmission mechanism drives the screen plate to shake back and forth. The reciprocating shaking of the screen plate can accelerate the screening of the raw materials falling on the screen plate. At the same time, the dredging rod will intermittently pass through the sieve holes, thereby realizing continuous dredging of the sieve holes to avoid clogging of the sieve holes.

[0005] However, the device still has the following problems: the device has an open structure, which is prone to dust and other problems during screening, and the device vertically arranges multiple components including a second bump, crushing blades, a dispersion plate, a driven shaft, etc. on the same drive shaft, the drive shaft is heavily loaded, and the probability of failure is high. Utility Model Content

[0006] In view of the above-mentioned problems, the purpose of the utility model is to provide a concrete aggregate conveying equipment. Through the structural setting of the control unit and the first screening unit, the device becomes a closed structure and does not cause problems such as dust. At the same time, there is no driving element inside the device, which has the advantages of simple structure and low failure rate.

[0007] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0008] A concrete aggregate conveying device comprises a feed cylinder, a screening cylinder connected to the feed cylinder, a control unit slidably connected to the side wall of the feed cylinder for controlling the closing / opening of a connection port between the feed cylinder and the screening cylinder, and a first screening unit arranged in the screening cylinder.

[0009] As a further preferred embodiment of the present invention, the control unit includes a first vertical rail arranged on the inner wall of the feed barrel, a second vertical rail arranged on the outer wall of the feed barrel and connected to the vertical rail, a sliding block slidably connected to the first vertical rail, a driving plate arranged at the end of the sliding block and slidably connected to the second vertical rail and extending outside the feed barrel, and a sealing plate arranged on the side end of the sliding block away from the first vertical rail and adapted to the connecting port.

[0010] As a further preferred embodiment of the present invention, the first screening unit includes a first plate body detachably mounted in the screening cylinder, and a first screening hole arranged on the first plate body.

[0011] As a further preferred embodiment of the present invention, the conveying device further comprises a second screening unit which is arranged at the lower end of the control unit and crushes the lumps on the first plate body by approaching the first plate body.

[0012] As a further preferred embodiment of the present invention, the second screening unit includes a second plate body matching the connecting port, second screening holes arranged on the second plate body and staggered with the first screening holes, and a connecting rod arranged on the side end of the upper surface of the second plate body and connected to the control unit.

[0013] As a further preferred embodiment of the present invention, the length of the connecting rod is smaller than the distance between the connecting port and the first plate body.

[0014] As a further preferred embodiment of the present invention, the hole spacing of the second sieve holes is greater than the hole spacing of the first sieve holes.

[0015] As a further preferred embodiment of the present invention, the second screening unit further includes a plurality of dredging rods arranged on the lower surface of the second plate body and corresponding one-to-one with the first screening holes in the vertical direction.

[0016] As a further preferred embodiment of the present invention, the control unit also includes a fixed plate arranged on the outer side wall of the feed cylinder or the screening cylinder, and a motor arranged on the fixed plate and used for driving the driving plate to rise and fall in the vertical direction.

[0017] As a further preferred embodiment of the present invention, the control unit further includes a ball bearing arranged on a side end of the sealing plate.

[0018] As a further preferred embodiment of the present invention, the first screening unit also includes installation grooves respectively arranged on the inner wall of one end of the screening cylinder, a positioning block arranged on one side end of the first plate body and used to be inserted into the groove, an installation opening arranged on the side wall of the other end of the screening cylinder and used to insert the first plate body, and a sealing door arranged on the side end of the screening cylinder and used to seal the installation opening.

[0019] As a further preferred embodiment of the present invention, the first screening unit further comprises a positioning groove arranged on a side of the first plate body away from the positioning block, and a positioning rod arranged on the sealing door and inserted into the positioning groove.

[0020] As a further preferred embodiment of the present invention, the first screening unit also includes bristles arranged on the inner wall of the installation opening.

[0021] As a further preferred embodiment of the present invention, the feeding cylinder includes a cylinder body and a feeding pipe arranged on one side of the upper end of the cylinder body, the connecting port is arranged on the side of the lower end of the cylinder body away from the feeding pipe, and the cylinder body is inclined near the inner wall of the feeding pipe and extends to the connecting port. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Attached Figure 1 It is a schematic diagram of the structure of the utility model at the main viewing angle.

[0023] Attached Figure 2 It is a schematic diagram of the partial cross-sectional structure of the utility model.

[0024] Attached Figure 3 It is a schematic diagram of the structure of the control unit of the utility model from a side view angle.

[0025] Attached Figure 4 It is a schematic diagram of the partial structure of the first screening unit of the utility model from a top view.

[0026] Attached Figure 5 This is a schematic diagram of another working state of the utility model under the main viewing angle.

[0027] Description of the drawings: feed cylinder 11, screening cylinder 12, control unit 1, first screening unit 2, second screening unit 3, connection port a, cylinder body 111, feed pipe 112;

[0028] A first vertical track 101, a second vertical track 102, a sliding block 103, a driving plate 104, a sealing plate 105, a fixing plate 106, a motor 107, and a ball bearing 108;

[0029] The first plate 201, the first screening hole 202, the mounting groove 203, the positioning block 204, the mounting opening 205, the sealing door 206, the positioning groove 207, the positioning rod 208, and the bristles 209;

[0030] The second plate body 301 , the second screening hole 302 , the connecting rod 303 , and the dredging rod 304 . DETAILED DESCRIPTION

[0031] In the description of the present utility model, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use, or are directions or positional relationships that are usually understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present utility model.

[0032] In addition, the terms "first", "second", etc. are only used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms such as "setting" and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection: it can be a mechanical connection or an electrical connection: it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] A concrete aggregate conveying device provided in this embodiment includes a feed barrel 11, a screening barrel 12 connected to the feed barrel 11, a control unit 1 slidably connected to the side wall of the feed barrel 11 for controlling the closing / opening of a connection port a between the feed barrel 11 and the screening barrel 12, and a first screening unit 2 arranged in the screening barrel 12.

[0035] In this embodiment, the feeding cylinder 11 includes a cylinder body 111 and a feeding pipe 112 arranged on one side of the upper end of the cylinder body 111, the connecting port a is arranged on the side of the lower end of the cylinder body 111 away from the feeding pipe 112, and the cylinder body 111 is inclined near the inner wall of the feeding pipe 112 and extends to the connecting port a.

[0036] In this embodiment, the control unit 1 includes a first vertical track 101 arranged on the inner wall of the feed barrel 11, a second vertical track 102 arranged on the outer wall of the feed barrel 11 and connected to the first vertical track 101, a sliding block 103 slidably connected in the first vertical track 101, a driving plate 104 arranged at the end of the sliding block 103 and slidably connected to the second vertical track 102 and extending to the outside of the feed barrel 11, a sealing plate 105 arranged on the side end of the sliding block 103 away from the first vertical track 101 and adapted to the connecting port a, a fixing plate 106 arranged on the outer wall of the feed barrel 11 or the screening barrel 12, a motor 107 arranged on the fixing plate 106 and used to drive the driving plate 104 to rise and fall in the vertical direction, and a ball 108 arranged on the side end of the sealing plate 105. As a further preference of this embodiment, a side panel can be provided on the side of the sealing plate 105 close to the first vertical track 101 (see attached Figure 3 , not marked in the figure), is used to prevent sand from entering the first vertical track 101, and the ball 108 is mainly arranged on the side of the sealing plate 105 away from the side panel, which is used to reduce the wear between the sealing plate 105 and the inner wall, and also to provide sealing. As a further preference of this embodiment, a limit rod penetrating the sliding block 103 can also be arranged in the first vertical track 101 to enhance the stability of the lifting and lowering of the sealing plate 105, so as to improve the sealing of the connection port a.

[0037] In this embodiment, the first screening unit 2 includes a first plate body 201 detachably mounted in the screening cylinder 12 , and first screening holes 202 arranged on the first plate body 201 .

[0038] In this embodiment, an implementation method of the detachable connection between the first plate body 201 and the screening drum 12 is exemplified as follows: the first screening unit 2 includes mounting grooves 203 respectively arranged on the inner side wall of one end of the screening drum 12, a positioning block 204 arranged on one side of the first plate body 201 and used to be inserted into the groove 203, a mounting opening 205 arranged on the side wall of the other end of the screening drum 12 and used to be inserted into the first plate body 201, a sealing door 206 arranged on the side end of the screening drum 12 and used to block the mounting opening 205, a positioning groove 207 arranged on the side of the first plate body 201 away from the positioning block 204, a positioning rod 208 arranged on the sealing door 206 and inserted into the positioning groove 207, and bristles 209 arranged on the inner wall of the mounting opening 205.

[0039] The positioning blocks 204 and the positioning rods 208 are correspondingly distributed on both sides of the first plate 201, the first purpose is to fix the first plate 201, and the second purpose is to make the first plate 201 installed in the screening cylinder 12 at a unique angle and position, thereby ensuring that the first screening holes 202 on the first plate 201 can be aligned one by one with the dredging rods 304 described below, thereby ensuring the effect of the dredging rods 304. The bristles 209 are mainly used to prevent sand from entering the installation opening 205.

[0040] As a further preferred embodiment of the present invention, the conveying device further includes a second screening unit 3 disposed at the lower end of the control unit 1 and crushing the agglomerates on the first plate 201 by approaching the first plate 201. The specific structure is as follows:

[0041] The second screening unit 3 comprises a second plate 301 matched with the connection port a, second screening holes 302 arranged on the second plate 301 and staggered with the first screening holes 202, a connecting rod 303 arranged at the side end of the upper surface of the second plate 301 and connected to the control unit 1, and a plurality of dredging rods 304 arranged on the lower surface of the second plate 301 and corresponding to the first screening holes 202 in a one-to-one vertical direction. The length of the connecting rod 303 is less than the distance between the connection port a and the first plate 201; the hole pitch of the second screening holes 302 is greater than the hole pitch of the first screening holes 202.

[0042] The working principle of the conveying equipment provided in this embodiment is as follows: the motor 107 in the control unit 1 drives the sealing plate 105 to rise and fall in the vertical direction, thereby achieving the effect of intermittently blocking the connection port a, so that the total amount of raw materials entering the screening cylinder 12 can be controlled, and the first screening unit 2 can screen the raw materials, so that the screening efficiency and screening effect of the device are both excellent. The second plate body 301 in the second screening unit 3 is synchronously raised and lowered under the drive of the sealing plate 105, and when the sealing plate 105 closes the connection port a, the second plate body 301 is just located at the upper end of the first plate body 201, and the distance between the two is about 1~5cm, which can just crush the agglomerated sand accumulated on the first plate body 201, so that more sand can pass through the first plate body 201. In addition, the dredging rod 304 acts on the first screening hole 202 at the same time to dredge it. It is worth mentioning that the second screening unit 3 also has a special state, that is, the sealing plate 105 is located at the upper end of the connection port a, and the second plate body 301 just seals the connection port a, thereby pre-screening the raw materials before entering the screening cylinder 12, further improving the screening effect, and the large volume raw materials that cannot pass through will stay on the second plate body 301 waiting for recovery.

[0043] The conveying equipment provided in this embodiment has the following advantages compared with the prior art: first, the device is a closed structure and will not cause problems such as dust; second, there is no driving element inside the device, the structure is simple, and the failure rate is low; third, the device has the advantages of good practicality and strong functionality by adding a second screening unit, which not only improves the screening effect, but also has the effect of crushing agglomerated sand and unblocking the sieve holes.

[0044] The specific embodiments described herein are merely examples of the spirit of the present invention. A person skilled in the art of the present invention may make various modifications or additions to the specific embodiments described or replace them in a similar manner, but this will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A concrete aggregate conveying device, comprising a feed cylinder (11) and a screening cylinder (12) connected to the feed cylinder (11), characterized in that: It also includes a control unit (1) slidably connected to the side wall of the feed cylinder (11) for controlling the closing / opening of a connection port (a) between the feed cylinder (11) and the screening cylinder (12), and a first screening unit (2) arranged in the screening cylinder (12).

2. A concrete aggregate conveying equipment according to claim 1, characterized in that: The control unit (1) comprises a first vertical track (101) arranged on the inner wall of the feed barrel (11), a second vertical track (102) arranged on the outer wall of the feed barrel (11) and connected to the first vertical track (101), a sliding block (103) slidably connected to the first vertical track (101), a driving plate (104) arranged at the end of the sliding block (103) and slidably connected to the second vertical track (102) and extending outside the feed barrel (11), and a sealing plate (105) arranged on the side end of the sliding block (103) away from the first vertical track (101) and adapted to the connecting port (a).

3. The concrete aggregate conveying equipment according to claim 1, characterized in that: The first screening unit (2) comprises a first plate body (201) detachably mounted in the screening cylinder (12), and a first screening hole (202) arranged on the first plate body (201).

4. A concrete aggregate conveying equipment according to claim 3, characterized in that: The conveying device further comprises a second screening unit (3) which is arranged at the lower end of the control unit (1) and is arranged close to the first plate body (201) to crush the lumps on the first plate body (201).

5. The concrete aggregate conveying equipment according to claim 4, characterized in that: The second screening unit (3) comprises a second plate body (301) matched with the connecting port (a), second screening holes (302) arranged on the second plate body (301) and staggered with the first screening holes (202), and a connecting rod (303) arranged on the side end of the upper surface of the second plate body (301) and connected to the control unit (1).

6. The concrete aggregate conveying equipment according to claim 5, characterized in that: The length of the connecting rod (303) is smaller than the distance between the connecting port (a) and the first plate body (201).

7. The concrete aggregate conveying equipment according to claim 5, characterized in that: The hole spacing of the second sieve holes (302) is greater than the hole spacing of the first sieve holes (202).

8. The concrete aggregate conveying equipment according to claim 5, characterized in that: The second screening unit (3) further comprises a plurality of dredging rods (304) arranged on the lower surface of the second plate body (301) and corresponding one-to-one with the first screening holes (202) in the vertical direction.

9. The concrete aggregate conveying equipment according to claim 2, characterized in that: The control unit (1) further comprises a fixing plate (106) arranged on the outer side wall of the feed cylinder (11) or the screening cylinder (12), and a motor (107) arranged on the fixing plate (106) and used for driving the driving plate (104) to rise and fall in a vertical direction.

10. The concrete aggregate conveying equipment according to claim 2, characterized in that: The control unit (1) further comprises a ball (108) arranged on a side end of the sealing plate (105).

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