Bulk material crushing and screening device

Abstract

The utility model relates to the technical field of bulk material production equipment, and provides a bulk material crushing and screening device, which comprises a crushing mechanism and a screening mechanism, and is characterized in that the crushing mechanism comprises a crushing cavity shell and a discharge hopper arranged at the bottom of the crushing cavity shell, and tracks are symmetrically arranged on two sides of the lower part of the discharge hopper; the screening mechanism comprises a screening cavity shell, a screening plate, a linear driving unit and a vibration unit, a butt joint opening is formed in the top wall of the screening cavity shell, supporting parts are symmetrically formed on the two sides of the butt joint opening, rails on the two sides of the discharging hopper are supported on the supporting parts, and the screening plate is inserted into sliding grooves of the rails; the upper end face of the screening plate is attached to the lower end face of the discharging hopper and can be driven by the linear driving unit to slide along the sliding groove, and the vibrating unit is used for vibrating the part, exposed out of the sliding groove, of the screening plate. The crushing and screening device overcomes the defects in the prior art, is reasonable in design and convenient to use, and solves the technical problems that an existing crushing and screening device is high in blockage clearing frequency and affects production efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to bulk production equipment technical field, concretely relates to a kind of bulk powdering screening device. BACKGROUND

[0002] The existing bulk powdering screening device, generally by vibrator, periodically vibrates the screening plate arranged at the discharge port of the crushing mechanism, to make the material be screened on the screen surface according to the particle size, small particles fall through the screen hole, and large particles are retained on the screen surface to continue the crushing operation. But the screen plate is easy to be blocked, especially the screening frequency of fine bulk is higher, and the disassembly and cleaning of the powdering screening device greatly affect the production efficiency.

[0003] Therefore, we provide a kind of bulk powdering screening device. UTILITY MODEL CONTENT

[0004] (I) the technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of bulk powdering screening device, overcome the deficiencies of prior art, design is reasonable, convenient to use, solve the technical problem that the existing powdering screening device is high in frequency of cleaning and blocking, and affects production efficiency.

[0006] (II) technical scheme

[0007] To achieve the above object, the utility model is realized by the following technical scheme:

[0008] A kind of bulk powdering screening device, including crushing mechanism and screening mechanism, it is characterized by: the crushing mechanism includes crushing cavity shell and the discharge hopper installed at the bottom of crushing cavity shell, the discharge hopper lower part both sides are symmetrically equipped with track, the screening mechanism includes screening cavity shell, screening plate, linear drive unit and vibration unit, the top wall of screening cavity shell is equipped with butt joint opening, butt joint opening both sides are symmetrically formed with support part, the track of discharge hopper both sides is supported on support part, the screening plate is inserted in the sliding slot of track, the upper end surface of screening plate is attached with the lower end surface of discharge hopper and is spaced apart from the top wall of screening cavity shell, the linear drive unit is used to drive screening plate to slide along sliding slot, and the vibration unit is used to vibrate the part of screening plate exposed from sliding slot.

[0009] Further, the linear drive unit includes electric cylinder and connecting rod, the electric cylinder is installed on the side wall of screening cavity shell by first connecting seat, and the both ends of connecting rod are connected with the output end of electric cylinder and the end of screening plate respectively.

[0010] Further, the end of the connecting rod is provided with a connecting piece, the connecting piece and the end of the screening plate are provided with a waist-shaped hole, and the connecting piece and the screening plate are connected through a connecting ring penetrating the waist-shaped holes.

[0011] Further, the end of the connecting rod is connected with the screening plate through a pull rope.

[0012] Further, the vibrating unit comprises a motor, a transmission shaft and a cam, the motor is installed on the side wall of the screening cavity shell through a second connecting seat, and the output end of the motor is connected with the transmission shaft, the transmission shaft is rotatably supported on the side wall of the screening cavity shell at two ends, and the cam is installed on the transmission shaft and abuts against the screening plate.

[0013] Further, the transmission shaft is provided with a pair of cams.

[0014] Further, the top wall of the screening cavity shell is provided with a sealing soft pad outside the periphery of the butt joint opening, and the sealing soft pad abuts against the outer wall of the discharge hopper.

[0015] (Three) beneficial effects

[0016] The utility model provides a kind of pulverization and screening device of bulk material, with the following beneficial effects:

[0017] 1, screening plate is installed movably, specifically under the driving of linear drive unit, horizontal transverse migration is carried out, different regions of screening plate can be matched screening, and the region exposed to discharge hopper, not screened can vibrate under the action of vibrating unit, realize unblocking, can reduce the frequency of shutdown, disassembly, unblocking, guarantee production efficiency;

[0018] 2, the top wall of screening plate and screening cavity shell is spaced apart, can guarantee the vibration amplitude of screening plate, and then guarantee unblocking effect;

[0019] 3, in the process of translation, the part of clogging material exposed to the upper end surface of screening plate can be broken and peeled under the shearing action of the lower end surface of discharge hopper, reduce the clamping degree of remaining part and screen hole, can improve subsequent vibration unblocking effect. DETAILED DESCRIPTION

[0020] Figure 1 It is the structure schematic diagram of the utility model;

[0021] Figure 2 It is the explosion schematic diagram of the utility model;

[0022] Figure 3 It is the explosion schematic diagram of screening mechanism in the utility model;

[0023] Figure 4 It is the cross-sectional view schematic diagram of screening mechanism in the utility model;

[0024] Figure 5 For Figure 4 The structure schematic diagram of the local amplification at A in the middle.

[0025] In the figure:

[0026] 11, crushing cavity shell;

[0027] 12, crushing motor;

[0028] 13, feed hopper;

[0029] 14, discharge hopper;

[0030] 15, track;

[0031] 21, screening cavity shell;

[0032] 211, butt joint opening;

[0033] 2111, L-shaped support part;

[0034] 221, vibration motor;

[0035] 222, transmission shaft;

[0036] 223, cam;

[0037] 231, electric cylinder;

[0038] 232, connecting rod;

[0039] 2321, waist-shaped hole;

[0040] 233, connecting ring;

[0041] 24, screening plate;

[0042] 25, sealing soft pad. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model more clear, the technical scheme in the embodiments of the utility model will be described clearly and completely below by combining with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0044] Refer to the drawings Figures 1-5The utility model provides a kind of screening device of bulk material, including pulverization mechanism and screening mechanism, the pulverization mechanism includes pulverization cavity shell 11, the pulverization motor 12 of being installed in the top of pulverization cavity shell 11, the feed hopper 13 (be communicated by pipeline) of being installed in the side of pulverization cavity shell 11 and the discharge hopper 14 of being installed in the bottom of pulverization cavity shell 11, the track 15 of being symmetrically installed in the lower part of discharge hopper 14 two sides, track 15 is side placed concave letter shape structure, i. E. Formed with chute in inside, and the upper end surface of chute is flush with the lower end surface of discharge outlet, the screening mechanism includes screening cavity shell 21, screening plate 24 (surface is distributed with sieve hole), linear drive unit and vibration unit, the top wall of screening cavity shell 21 is provided with butt joint opening 211, L-shaped support portion 2111 is symmetrically formed in butt joint opening 211 two sides, the track 15 of discharge hopper 14 two sides is supported on L-shaped support portion 2111, the screening plate 24 is inserted in the chute of track 15, the upper end surface of screening plate 24 is attached (can be installed on the lower end surface of chute, and the upper elastic resistance of screening plate 24 is attached to the lower end surface of discharge hopper, and the effective attachment of screening plate 24 and the lower end surface of discharge hopper is based on not affecting sliding effect) and is spaced apart with the top wall of screening cavity shell 21, the length of screening plate is generally greater than the outer diameter or length of discharge outlet, the length of screening plate is generally 2-3 times of the outer diameter or length of discharge outlet, the linear drive unit is used to drive screening plate 24 to slide along chute, and the vibration unit is used to vibrate the part of screening plate 24 exposed from chute.

[0045] In the embodiment, the linear drive unit includes an electric cylinder 231 and a connecting rod 232, the electric cylinder 231 is installed on the side wall of the screening cavity shell 21 through a first connecting seat, and the connecting rod 232 is connected with the output end of the electric cylinder 231 and the end of the screening plate 24 respectively.

[0046] In the embodiment, the end of the connecting rod 232 is provided with a connecting piece, the connecting piece and the end of the screening plate 24 are provided with a waist-shaped hole 2321, and the connecting piece and the screening plate 24 are connected through a connecting ring 233 penetrating the waist-shaped holes 2321. In other embodiments, the end of the connecting rod 232 is connected with the screening plate 24 through a pull rope. Whether through the cooperation of the connecting ring 233 and the waist-shaped hole 2321 or through the setting of the pull rope, the hard connection of the connecting rod 232 and the screening plate 24 can be avoided, and the stability of the connecting rod 232 and the connecting structure of the connecting rod 232 and the screening plate 24 can be reduced when the vibration unit acts.

[0047] In the embodiment, the vibration unit comprises a vibration motor 221, a transmission shaft 222 and a cam 223. The vibration motor 221 is installed on the side wall of the screening cavity shell 21 through the second connecting seat, and the output end of the vibration motor 221 is connected with the transmission shaft 222. The transmission shaft 222 is rotatably supported on the side wall of the screening cavity shell 21 at both ends. The cam 223 is installed on the transmission shaft 222 and abuts against the screening plate 24. A pair of cams 223 are arranged on the transmission shaft 222, and the pair of cams 223 abut against the vibrating screening plate 24 to expose the end of the chute. The arrangement of the pair of cams 223 can generate more uniform and strong vibration, and can better balance the vibration of the screening plate 24.

[0048] In the embodiment, the top wall of the screening cavity shell 21 is provided with a sealing soft pad 25 around the butt joint opening 211, and the sealing soft pad 25 abuts against the outer wall of the discharge hopper 14. Only one pair of strip-shaped sealing soft pads 25 are shown in the figure. The sealing soft pad 25 can be annular or H-shaped, and abuts against the outer wall of the discharge hopper 14 in a circle to ensure better sealing effect. The discharge opening or the lower part of the discharge opening is preferably rectangular, which facilitates the formation of more stable contact with the butt joint opening 211. Meanwhile, a ring sleeve with an inner circle and an outer square can be additionally arranged outside the circular discharge opening to achieve the purpose.

[0049] In some embodiments, linear drive units and vibration units can be arranged on both sides of the screening cavity shell 21. In addition, if the strength of the vibration unit cannot achieve rapid screening, the original vibrator installed on the side wall of the discharge hopper can also be retained.

[0050] In the above embodiment, the screen holes of the screening plate have the same diameter. In some other embodiments, the set of devices is slightly improved, and three screen hole regions with different diameters can be arranged along the length direction of the screening plate. The screening plate is moved by the linear drive unit to match different screening regions. Correspondingly, the clogging of the screening plate is more in the batch of different particle size bulk material crushing and screening.

[0051] It should be noted that, in the present document, the terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

[0052] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features therein can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A bulk material comminution and screening apparatus comprising a comminution mechanism and a screening mechanism, characterised in that: The crushing mechanism comprises a crushing cavity shell and a discharge hopper installed at the bottom of the crushing cavity shell, and rails are symmetrically installed at the lower part of the discharge hopper.

2. A bulk material comminution and classification apparatus as claimed in claim 1 wherein: The linear drive unit is used to drive the screening plate to slide along the sliding groove, and the vibration unit is used to vibrate the screening plate to expose the end part of the sliding groove.

3. A bulk material comminution and classification apparatus as claimed in claim 2 wherein: The end part of the connecting rod is provided with a connecting piece, the connecting piece and the end part of the screening plate are both provided with a waist-shaped hole, and the connecting piece and the screening plate are connected through a connecting ring penetrating the waist-shaped holes.

4. A bulk material comminution and classification apparatus as claimed in claim 2, wherein: The end part of the connecting rod is connected with the screening plate through a pull rope.

5. A bulk material comminution and classification apparatus as claimed in claim 1 wherein: The vibration unit comprises a motor, a transmission shaft and a cam, the motor is installed on the side wall of the screening cavity shell through a second connecting seat and its output end is connected with the transmission shaft, the transmission shaft is rotatably supported on the side wall of the screening cavity shell at both ends, and the cam is installed on the transmission shaft and abuts against the screening plate.

6. A bulk material comminution and classification apparatus as claimed in claim 5 wherein: A pair of cams are arranged on the transmission shaft.

7. A bulk material comminution and classification apparatus as claimed in claim 1 wherein: A sealing soft pad is arranged on the outer periphery of the top wall of the screening cavity shell at the docking opening, and the sealing soft pad abuts against the outer wall of the discharge hopper.

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