Cement fineness screening equipment for engineering detection
By combining the screening box design with tumbling and lateral reciprocating movement, the problem of low screening efficiency of existing cement fineness screening equipment is solved, and a more efficient cement screening and convenient cleaning process is achieved.
Patent Information
- Application Number
- CN202421963579.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-14
AI Technical Summary
The screening components of existing cement fineness screening equipment have a small movement amplitude and a single movement form, which leads to easy accumulation of cement and low screening efficiency.
The screening box design is adopted that combines the tumbling and lateral reciprocating motion. The first motor drives the incomplete gears and racks to achieve the up and down movement of the screening box, and the second motor drives the cam and baffle to achieve the lateral movement, combining the auxiliary support of the spring and telescopic rod to increase the movement amplitude and complexity of the screening box.
It improves the efficiency of cement screening, facilitates the discharge of screened cement, and simplifies the cleaning process of screening boxes.
Smart Images
Figure CN223083280U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cement screening, in particular to a cement fineness screening device for engineering detection. Background Art
[0002] Fineness refers to the overall thickness of cement particles. The finer the cement particles, the larger the surface area reacting with water. Therefore, the hydration reaction rate is relatively fast and relatively complete, and the early strength is also higher. However, the hardening shrinkage in the air is relatively large, and the cost is also relatively high.
[0003] However, in the prior art, for the screening device for cement fineness, its screening components usually perform horizontal reciprocating motion. The motion amplitude of the screening components is small and the motion form is single, resulting in easy accumulation of cement on the screening components, affecting the screening and passing of cement, and the screening efficiency is low. For this reason, we propose a cement fineness screening device for engineering detection. Summary of the Utility Model
[0004] The utility model provides a cement fineness screening device for engineering detection, which solves the above-mentioned technical problems.
[0005] The solution of the utility model to the above technical problems is as follows: A cement fineness screening device for engineering detection includes a box body. A sealing plate is fixedly installed on the outer side wall of the box body through bolts. A support frame is horizontally slidably fitted on the inner wall of the box body. The support frame is connected with a jolting power mechanism. A screening frame is slidably fitted on the upper end surface of the support frame. Wedge blocks are respectively fixedly installed on the inner side walls of both sides of the upper part of the box body. A baffle is vertically installed on the lower end surface of the wedge block through a sliding mechanism. The baffle is slidably fitted with the outer side wall of the screening frame. A pushing power mechanism is arranged on the outer side wall of one of the baffles. The outer side wall of the baffle is fixedly connected with the inner wall of the box body through a first telescopic rod arranged horizontally. A first spring is movably sleeved on the outer side wall of the first telescopic rod.
[0006] Preferably, the jolting power mechanism includes a first motor fixedly installed horizontally on the outer side wall of the box body. The output shaft of the first motor rotates through the box body. An incomplete gear is fixedly installed on the output shaft of the first motor. A rack vertically fixedly installed on the lower end surface of the support frame is meshed and connected with the incomplete gear.
[0007] Preferably, the sliding mechanism includes a chute horizontally opened on the lower end surface of the wedge block. The baffle is slidably connected with the inner wall of the chute.
[0008] Preferably, the pushing power mechanism includes a second motor fixedly installed horizontally on the outer side wall of the box body. The output shaft of the second motor rotates through the box body. A cam is fixedly installed on the output shaft of the second motor. The cam is slidably fitted with the outer side wall of the corresponding baffle on the same side. A plurality of balls are rotatably installed on the outer side wall of the cam.
[0009] Preferably, the inner bottom surface of the box body is inclined, and a discharge port is provided at one end of the lower part of the box body.
[0010] Preferably, a flip cover is horizontally and rotatably installed on the upper part of the box body, and a handle is fixedly installed on the upper end surface of the flip cover.
[0011] Preferably, a second telescopic rod is vertically and fixedly installed on the inner side wall of the box body. The upper end of the second telescopic rod is fixedly connected to the lower end surface of the support frame, and a second spring is movably sleeved on the outer side wall of the second telescopic rod.
[0012] The beneficial effects of the present utility model are as follows:
[0013] 1. By setting the second motor to drive the cam to rotate, and the cam cooperating with the horizontally arranged first telescopic rod and spring, the screening frame can be indirectly pushed to perform a horizontal reciprocating motion. At the same time, the first motor is set to drive the incomplete gear to rotate, and the incomplete gear cooperates with the rack on the lower surface of the support frame to make the support frame and the screening frame jolt. In this way, the screening frame jolts while performing a horizontal reciprocating motion, with a larger movement amplitude and a more complex movement form, making the screening efficiency of the device higher;
[0014] 2. By setting the box body with an inclined bottom, it is more convenient to discharge the screened cement. At the same time, a detachable sealing plate is provided on the side of the box body, making it more convenient and quick to take out and clean the internal screening frame, and facilitating the cleaning of the cement residue in the screening frame.
[0015] The above description is only an overview of the technical solution of the present utility model. In order to be able to understand the technical means of the present utility model more clearly and implement it in accordance with the content of the description, the following takes the preferred embodiments of the present utility model and combines with the attached drawings to describe in detail as follows. The specific implementation manners of the present utility model are given in detail by the following embodiments and their attached drawings. Description of the Drawings
[0016] The drawings described herein are used to provide a further understanding of the present utility model, and constitute a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:
[0017] Figure 1 is a schematic structural diagram of a cement fineness screening device for engineering detection proposed by the present utility model;
[0018] Figure 2 is a schematic structural diagram of the sealing plate of a cement fineness screening device for engineering detection proposed by the present utility model;
[0019] Figure 3 is a schematic structural diagram of the screening frame of a cement fineness screening device for engineering detection proposed by the present utility model;
[0020] Figure 4 Schematic diagram of the wedge block structure of a cement fineness screening device for engineering detection proposed by the present utility model;
[0021] Figure 5 A cement fineness screening device for engineering detection proposed by the present utility model Figure 3 Enlarged view at position A in
[0022] Legend description:
[0023] 1. Box body; 2. Sealing plate; 3. Support frame; 4. Screening frame; 5. Wedge block; 6. Baffle; 7. First telescopic rod; 8. First spring; 9. First motor; 10. Incomplete gear; 11. Rack; 12. Second motor; 13. Cam; 14. Ball; 15. Second telescopic rod; 16. Second spring. Specific implementation mode
[0024] The following combines the attached Figures 1-5 Describe the principle and characteristics of the present utility model. The examples given are only used to explain the present utility model and are not used to limit the scope of the present utility model. In the following paragraphs, the present utility model will be described more specifically by way of example with reference to the drawings. According to the following description and the claims, the advantages and features of the present utility model will be clearer. It should be noted that the drawings are all in a very simplified form and use non-precise scales, only for the purpose of conveniently and clearly assisting in explaining the embodiments of the present utility model.
[0025] As Figures 1-5 shown, a cement fineness screening device for engineering detection of the present utility model includes a box body 1. A flip cover is horizontally rotatably installed on the upper part of the box body 1. A handle is fixedly installed on the upper end surface of the flip cover. The inner bottom surface of the box body 1 is inclined to facilitate discharging. An outlet is opened at one end of the lower part of the box body 1. A sealing plate 2 is fixedly installed on the outer side wall of the box body 1 through bolts. A support frame 3 is horizontally slidably fitted on the inner wall of the box body 1. The support frame 3 is connected with a jolting power mechanism. A screening frame 4 is slidably fitted on the upper end surface of the support frame 3. Wedge blocks 5 are respectively fixedly installed on the inner side walls of both sides of the upper part of the box body 1. A baffle 6 is vertically installed on the lower end surface of the wedge block 5 through a sliding mechanism. The sliding mechanism includes a chute horizontally opened on the lower end surface of the wedge block 5. The baffle 6 is slidably connected with the inner wall of the chute. The baffle 6 is slidably fitted with the outer side wall of the screening frame 4. A pushing power mechanism is arranged on the outer side wall of one of the baffles 6. The outer side wall of the baffle 6 is fixedly connected with the inner wall of the box body 1 through a horizontally arranged first telescopic rod 7. A first spring 8 is movably sleeved on the outer side wall of the first telescopic rod 7.
[0026] Specifically, the jolting power mechanism includes a first motor 9 horizontally and fixedly installed on the outer side wall of the box body 1. The output shaft of the first motor 9 rotates through the box body 1. An incomplete gear 10 is fixedly installed on the output shaft of the first motor 9. A rack 11 meshed with the incomplete gear 10 is vertically and fixedly installed on the lower end surface of the support frame 3. The first motor 9 drives the incomplete gear 10 to rotate. The incomplete gear 10 drives the support frame 3 and the screening frame 4 to move upward indirectly through the transmission of the rack 11. When the incomplete gear 10 loses meshing with the rack 11, the screening frame 4 moves downward due to gravity, thereby realizing up-and-down jolting and screening the cement in the screening frame 4.
[0027] More specifically, the pushing power mechanism includes a second motor 12 horizontally and fixedly installed on the outer side wall of the box body 1. The output shaft of the second motor 12 rotates through the box body 1. A cam 13 is fixedly installed on the output shaft of the second motor 12. The cam 13 is slidably matched with the outer side wall of the corresponding baffle 6 on the same side. A plurality of balls 14 are rotatably installed on the outer side wall of the cam 13. The second motor 12 drives the cam 13 to rotate. The cam 13 pushes the baffle 6 to drive the screening frame 4 to move horizontally. The first spring 8 pushes the baffle 6 to drive the screening frame 4 to reset, so that the screening frame 4 performs horizontal reciprocating motion, intensifying the jolting of the cement in the screening frame 4, optimizing the screening of the cement, and arranging the balls 14 to directly contact the baffle 6 to replace sliding friction with rolling friction and reduce friction loss.
[0028] Furthermore, a second telescopic rod 15 is vertically and fixedly installed on the inner side wall of the box body 1. The upper end of the second telescopic rod 15 is fixedly connected to the lower end surface of the support frame 3. A second spring 16 is movably sleeved on the outer side wall of the second telescopic rod 15. The second telescopic rod 15 and the second spring 16 cooperate to assist in supporting the support frame 3, so that the support frame 3 can only descend a short distance, preventing the screening frame 3 above the support frame 3 from colliding with the incomplete gear 10 and ensuring the realization of the device function.
[0029] Working principle:
[0030] During use, open the flip cover, pour the cement into the screening box 4, then close the flip cover, control the start of the first motor 9 and the second motor 12. The first motor 9 drives the incomplete gear 10 to rotate. When the incomplete gear 10 meshes with the rack 11, the rack 11 drives the support frame 3 to move upward, and the support frame 3 pushes the screening box 4 to move upward. When the incomplete gear 10 loses meshing with the rack 11, the screening box 4 moves downward due to gravity. The second motor 12 drives the cam 13 to rotate, and the cam 13 pushes the baffle 6 on the same side to move. The baffle 6 pushes the screening box 4 to move away from the cam 13. As the cam 13 continues to rotate, the second spring 16 acts on the baffle 6, and the baffle 6 pushes the screening box 4 to reset. In this way, the screening box 4 performs vertical jolting and horizontal reciprocating motion at the same time, jolting and screening the cement in the screening box 4. The cement meeting the standard fineness falls through the screening box 4 to the bottom of the box body 1 and then is discharged from the discharge port to complete the screening.
[0031] The above is only the preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention. Any ordinary technician in the industry can smoothly implement the present invention according to the illustrations in the specification and the above description. However, any equivalent changes such as slight modifications, decorations, and evolutions made by those skilled in the art within the scope of the technical solution of the present invention by using the technical content disclosed above are equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications, and evolutions made to the above embodiments based on the essential technology of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims
1. A cement fineness screening device for engineering detection, comprising a box body (1), characterized in that: A sealing plate (2) is fixedly installed on the outer side wall of the box body (1) through bolts. A support frame (3) is horizontally slidably fitted on the inner wall of the box body (1). The support frame (3) is connected with a jolting power mechanism. A screening frame (4) is slidably fitted on the upper end surface of the support frame (3). Wedge blocks (5) are respectively fixedly installed on the inner side walls of both sides of the upper part of the box body (1). A baffle plate (6) is vertically installed on the lower end surface of the wedge block (5) through a sliding mechanism. The baffle plate (6) is slidably fitted with the outer side wall of the screening frame (4). A pushing power mechanism is arranged on the outer side wall of one of the baffle plates (6). The outer side wall of the baffle plate (6) is fixedly connected with the inner wall of the box body (1) through a first telescopic rod (7) arranged horizontally. A first spring (8) is movably sleeved on the outer side wall of the first telescopic rod (7).
2. An engineering inspection cement fineness screening device according to claim 1, characterized in that: The jolting power mechanism includes a first motor (9) fixedly installed horizontally on the outer side wall of the box body (1). The output shaft of the first motor (9) rotates through the box body (1). An incomplete gear (10) is fixedly installed on the output shaft of the first motor (9). A rack (11) meshed with the incomplete gear (10) is vertically fixedly installed on the lower end surface of the support frame (3).
3. An engineering inspection cement fineness screening device according to claim 1, characterized in that: The sliding mechanism includes a chute horizontally opened on the lower end surface of the wedge block (5). The baffle plate (6) is slidably connected with the inner wall of the chute.
4. An engineering inspection cement fineness screening device according to claim 1, characterized in that: The pushing power mechanism includes a second motor (12) fixedly installed horizontally on the outer side wall of the box body (1). The output shaft of the second motor (12) rotates through the box body (1). A cam (13) is fixedly installed on the output shaft of the second motor (12). The cam (13) is slidably fitted with the outer side wall of the corresponding baffle plate (6) on the same side. A plurality of balls (14) are rotatably installed on the outer side wall of the cam (13).
5. An engineering inspection cement fineness screening device according to claim 1, characterized in that: The inner bottom surface of the box body (1) is inclined. An outlet is opened at one end of the lower part of the box body (1).
6. An engineering inspection cement fineness screening device according to claim 1, characterized in that: A flip cover is horizontally rotatably installed on the upper part of the box body (1). A handle is fixedly installed on the upper end surface of the flip cover.
7. An engineering inspection cement fineness screening device according to claim 1, characterized in that: A second telescopic rod (15) is vertically fixedly installed on the inner side wall of the box body (1). The upper end of the second telescopic rod (15) is fixedly connected with the lower end surface of the support frame (3). A second spring (16) is movably sleeved on the outer side wall of the second telescopic rod (15).