Automatic beating device of negative pressure sieve analyzer

Abstract

The utility model discloses an automatic beating device of a negative pressure sieve analyzer, which comprises a beating device and the negative pressure sieve analyzer, a sieve cover is arranged on the negative pressure sieve analyzer, and the beating device comprises a transmission part and a beating hammer; the transmission component comprises a small chain wheel, a chain, a large chain wheel and a center shaft, the small chain wheel is connected with an output shaft of the motor and connected with the large chain wheel through the chain, the large chain wheel is coaxially connected with the center shaft, a circular ring is fixedly connected to the center shaft, the center shaft is tangent to the circular ring, and the circular ring and the connecting rod are kept on the same horizontal plane. The connecting rod is connected with the supporting rod through a pin shaft. The device has the beneficial effects that the beating device can automatically conduct beating operation according to the set frequency and strength, and it is ensured that fine powder fully passes through the screen; after screening analysis is completed, the system automatically stops beating, the whole experiment process only needs no manual intervention, the labor intensity is greatly reduced, occupational health hazards are reduced, and meanwhile the working efficiency and the experiment result accuracy are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of negative pressure screen vibration device, concretely relates to a negative pressure screen analyzer automatic knocking device. BACKGROUND

[0002] Cement as an important building material, its production process control in need of grinding link, namely raw material, coal powder, cement process will refer to its sieve residue as the basis of process operation, sieve residue, particle distribution of different processes are crucial to quality management, process energy consumption. Especially since June 1, 2023, the new national standard GB175 of cement began to implement, there are clear limit value provisions for cement 45 micron sieve residue, enough to see the importance of sieve residue detection. The experimental results have important influence on the quality of cement final product.

[0003] And cement negative pressure screen analyzer is the basic experimental equipment of cement enterprise detection raw material, coal powder, cement sieve residue, and the frequency of use is very high in the daily quality management process. At present, the traditional cement negative pressure screen analyzer in the screening process, the powder (raw material, coal powder, cement) is adhered to the sieve cover due to its own characteristics and equipment pressure, so the experimental personnel need to knock the screen manually to ensure that the fine powder can pass through the sieve hole smoothly, ensure the accuracy of experimental data. This manual operation not only increases the labor intensity, but also easily produces human error, affects the accuracy of screening results, causes trouble to cement quality control.

[0004] Chinese patent document CN217342277U discloses a kind of negative pressure screen analyzer automatic percussion device, and its percussion device is integrated structure with negative pressure screen analyzer, and the vibration caused by the driving motor of knocking device when working can have adverse effect on the work of negative pressure screen analyzer, and the working effect of knocking device is poor.Therefore, an automatic knocking device for screen is needed to improve the efficiency and precision of cement plant powder sieve residue analysis. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of negative pressure screen analyzer automatic knocking device, to solve the above-mentioned technical problems that in the working process of negative pressure screen, due to material is more small and is influenced by centrifugal force, a small amount of material will adhere to the surface of cover plate, need artificial knocking to remove, reduce use effect, increase artificial labor intensity.

[0006] The utility model provides a kind of negative pressure sieve analysis appearance automatic knocking device, it includes knocking device and negative pressure sieve analysis appearance, the sieve cover is provided on the negative pressure sieve analysis appearance, the knocking device includes transmission component and knocking hammer;The end of the knocking hammer is provided with connecting rod, the transmission component includes small sprocket, chain, large sprocket and center shaft, small sprocket is connected with motor output shaft, small sprocket is connected with large sprocket by chain, the large sprocket is coaxially connected with center shaft, the center shaft is fixedly connected with annular ring, the center shaft is tangent with annular ring, the annular ring and connecting rod keep in the same horizontal plane, the connecting rod is connected with support rod pin shaft.

[0007] Further, the connecting rod includes first connecting rod and second connecting rod, the first connecting rod right end is provided with screw hole, the second connecting rod left end is provided with external thread, and the first connecting rod is threadedly connected with the second connecting rod.

[0008] Further, the connecting rod is provided with a first hook on the side close to the support table, the support table is provided with a second hook corresponding to the first hook, and a spring is arranged between the first hook and the second hook.

[0009] Further, the support rod is provided with a support table below, the support rod is vertically arranged on the support table, and the support table is provided with an electric control table below.

[0010] Further, the support table is provided with a first bearing seat and a second bearing seat above the center shaft, the first bearing seat is provided with a first bearing, the second bearing seat is provided with a second bearing, the center shaft penetrates the first bearing and the second bearing, and the center shaft is fixedly connected with an annular ring between the first bearing seat and the second bearing seat.

[0011] Further, the electric control table includes a frequency regulator and a time controller, and the time controller is connected with the negative pressure sieve analysis appearance.

[0012] The utility model has the advantages that: compared with prior art, the negative pressure sieve analysis appearance starts to work, airflow is screened through screen, the transmission component is driven by motor, small sprocket drives large sprocket to rotate through chain, and large sprocket is coaxially connected with center shaft, so as to drive center shaft to rotate;The annular ring on the center shaft keeps in the same horizontal plane with connecting rod, with the rotation of center shaft, connecting rod drives knocking hammer to move up and down, and sieve cover is rhythmically knocked;After screening is completed, motor and negative pressure sieve analysis appearance are closed, screening result is checked, and parameters are adjusted for screening again according to needs.

[0013] The knocking device can automatically carry out the knocking operation according to the set frequency and force, and ensure that the fine powder is fully passed through the screen mesh; after the screening is completed, the system automatically stops the knocking, and the entire experimental process only needs no manual intervention, greatly reduces the labor intensity, reduces the occupational health hazards, and improves the working efficiency and the accuracy of experimental results. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a top view structural schematic diagram of the automatic knocking device of the negative pressure screening instrument.

[0015] Figure 2 It is a main view structural schematic diagram of the automatic knocking device of the negative pressure screening instrument in use state 1.

[0016] Figure 3 It is a main view structural schematic diagram of the automatic knocking device of the negative pressure screening instrument in use state 2.

[0017] Figure 4 It is a structural schematic diagram of a transmission component.

[0018] Figure 5 It is a main view structural schematic diagram of the automatic knocking device of the negative pressure screening instrument in use state 1.

[0019] Figure 6 It is a main view structural schematic diagram of the automatic knocking device of the negative pressure screening instrument in use state 2.

[0020] Wherein: 1, motor; 2, transmission component; 21, small chain wheel; 22, chain; 23, large chain wheel; 24, center shaft; 241, first bearing seat; 242, second bearing seat; 25, circular ring; 3, knocking device; 30, knocking hammer; 31, connecting rod; 320, first connecting rod; 321, screw hole; 322, second connecting rod; 323, external thread; 33, support rod; 4, electric control table; 5, support table; 51, spring; 52, first hook; 53, second hook; 6, negative pressure screening instrument; 61, screen cover. DETAILED DESCRIPTION

[0021] 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 one 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 labor fall within the protection scope of the present application.

[0022] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0023] In the following description, reference has been made to "one embodiment", "an embodiment", "one example", "an example" etc. which means that a particular feature, structure, characteristic, property, element or limitation described in connection with the embodiment or example can be included in at least one embodiment or example of the application but is not necessarily included in all embodiments or examples. In addition, the use of the term "according to an embodiment of the present application" although possibly referring to the same embodiment, does not necessarily refer to the same embodiment.

[0024] In the present embodiment, as shown in Figure 1 The knocking device 3 and the negative pressure sieve analyzer 6 are fixed on different support devices, so as to avoid the influence of the vibration caused by the driving motor 1 of the knocking device 3 on the working of the negative pressure sieve analyzer 6, and improve the efficiency and precision of the analysis of the cement plant powder residue.

[0025] The material of the knocking hammer 30 is polyurethane or wear-resistant rubber with wear resistance and elasticity, so as to ensure that the fine powder can be effectively pushed through the sieve hole during the knocking process, and the sieve screen is not damaged.

[0026] The knocking device 3 and the negative pressure sieve analyzer 6 are fixed on different support devices, so as to avoid the influence of the vibration caused by the driving motor 1 of the knocking device 3 on the working of the negative pressure sieve analyzer 6, and improve the efficiency and precision of the analysis of the cement plant powder residue.

[0027] The center shaft 24 is fixedly connected with a circular ring 25, the center shaft 24 is tangent to the circular ring 25, the circular ring 25 and the connecting rod 31 are kept in the same horizontal plane, the connecting rod 31 is connected with a support rod 33 through a pin shaft, the circular ring 25 is driven to rotate by the center shaft 24 through the large sprocket 23, so that the connecting rod 31 moves up and down; the introduction of the knocking device 3 effectively solves the problem that the sample may cover the sieve cover 61 during the screening process; the knocking device 3 knocks the sieve cover 61 through mechanical vibration, which helps to prevent the accumulation of particulate matter on the sieve cover 61, thereby improving the screening efficiency and accuracy.

[0028] The knocking device 3 will automatically perform the knocking operation according to the set frequency and force, so as to ensure that the fine powder can pass through the sieve screen; after the sieve analysis is completed, the system automatically stops the knocking, and the entire experimental process only needs no manual intervention, which greatly reduces the labor intensity, reduces the occupational health hazards, improves the working efficiency and the accuracy of the experimental results.

[0029] The connecting rod 31 comprises a first connecting rod 320 and a second connecting rod 322, the first connecting rod 320 is provided with a threaded hole 321 at the right end, the second connecting rod 322 is provided with an external thread 323 at the left end, the first connecting rod 320 is connected with the threaded hole 321 of the second connecting rod 322, and the first connecting rod 320 and the second connecting rod 322 are designed to be detachable for length adjustment to adapt to different sieve cover 61 heights, and facilitate replacement of damaged knocking hammer 30.

[0030] The connecting rod 31 is provided with a first hook 52 on the side close to the support table 5, the support table 5 is provided with a second hook 53 corresponding to the first hook 52, and a spring 51 is arranged between the first hook 52 and the second hook 53, which plays a traction role and controls the striking direction and rebound of the connecting rod 31.

[0031] The support rod 33 is vertically arranged on the support table 5, and the support table 5 is provided with an electric control table 4 below, and the support table 5 comprises a damping device for reducing the influence of vibration intensity generated in the knocking process on the screening result.

[0032] The support table 5 is not arranged on the negative pressure screening instrument 6, but is fixed on the wall surface, table top or experimental table top around the negative pressure screening instrument 6, which has better stability and will not damage the structure of the negative pressure screening instrument 6. Due to the characteristics of its own support structure, the knocking device can even realize "one machine for multiple uses", that is, one knocking device serves multiple screening instruments around.

[0033] The support table 5 is provided with a first bearing seat 241 and a second bearing seat 242 on the central shaft 24, a first bearing is arranged on the first bearing seat 241, and a second bearing is arranged on the second bearing seat 242, the central shaft 24 penetrates the first bearing and the second bearing, and a circular ring 25 is fixedly connected between the first bearing seat 241 and the second bearing seat 242 on the central shaft 24, which ensures the stability and precision of the central shaft 24 during rotation, reduces vibration and deviation, and improves the working efficiency of the knocking device 3.

[0034] The electric control table 4 comprises a frequency regulator and a time controller, and the time controller is connected with the negative pressure screening instrument 6; the knocking frequency and time can be adjusted by the experimental personnel according to the screening requirements; the start and stop of the electric control table 4 can be connected with the start and stop of the cement negative pressure screening instrument 6, that is, the negative pressure screening instrument 6 is started, and the knocking device 3 is automatically started, the negative pressure screening instrument 6 is stopped, and the knocking device 3 is synchronously stopped, the frequency regulator and the time controller of the electric control table 4 can flexibly adjust the knocking frequency and the screening time according to different sample characteristics and screening requirements, and further optimize the screening effect.

[0035] Workflow: the negative pressure sieve analyzer 6 starts to work, the airflow is sieved through the screen, the transmission component 2 is driven by the motor 1, the small sprocket 21 drives the large sprocket 23 to rotate through the chain 22, the large sprocket 23 is coaxially connected with the central shaft 24, so as to drive the central shaft 24 to rotate; the ring 25 on the central shaft 24 keeps the same horizontal plane with the connecting rod 31, with the rotation of the central shaft 24, the connecting rod 31 drives the knocking hammer 30 to move up and down, and the screen cover 61 is knocked rhythmically.

[0036] The first connecting rod 320 and the second connecting rod 322 are detachably designed, which is convenient for length adjustment to adapt to different screen cover 61 heights, and is convenient for replacing the damaged knocking hammer 30; through the spring 51 on the supporting table 5, the knocking force of the knocking hammer 30 can be buffered and adjusted to prevent damage to the screen cover 61.

[0037] After the sieving is completed, the motor 1 and the negative pressure sieve analyzer 6 are turned off, the sieving result is checked, and the parameters are adjusted according to the need for re-sieving.

[0038] The above description of the disclosed embodiments is that the professional skilled in the art can realize or use the utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic knocking device for a negative pressure sieve analyzer, characterized in that: Including knock device and negative pressure sieve analyzer, the negative pressure sieve analyzer is provided with sieve cover, the knock device includes transmission part and knock hammer, one end of the knock hammer is provided with connecting rod, the transmission part includes small chain wheel, chain, large chain wheel and center shaft, the small chain wheel is connected with motor output shaft, the small chain wheel and the large chain wheel are connected through chain, the large chain wheel is coaxially connected with the center shaft, the center shaft is fixedly connected with ring, the center shaft is tangent to the ring, the ring and the connecting rod are kept in the same horizontal plane, the connecting rod is connected with support rod pin shaft.

2. The automatic rapping device of a negative pressure screen analyzer according to claim 1, characterized in that: The connecting rod includes first connecting rod and second connecting rod, the right end of the first connecting rod is provided with screw hole, the left end of the second connecting rod is provided with external thread, the first connecting rod is screwed with the second connecting rod.

3. The automatic rapping device of a negative pressure screen analyzer according to claim 1, characterized in that: The support rod is vertically arranged on the support table, and the support table is provided with an electric control table below.

4. The automatic rapping device of a negative pressure screen analyzer according to claim 3, characterized in that: The side of the connecting rod close to the support table is provided with a first hook, the support table is provided with a second hook corresponding to the first hook, and a spring is arranged between the first hook and the second hook.

5. The automatic rapping device of a negative pressure screen analyzer according to claim 3, characterized in that: The support table is provided with a first bearing seat and a second bearing seat above the center shaft, the first bearing seat is provided with a first bearing, the second bearing seat is provided with a second bearing, the center shaft passes through the first bearing and the second bearing, and the center shaft is fixedly connected with a ring between the first bearing seat and the second bearing seat.

6. The automatic rapping device of a negative pressure screen analyzer according to claim 3, characterized in that: The electric control table includes a frequency regulator and a time controller, and the time controller is connected with the negative pressure sieve analyzer.

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