Anti-blocking type bearing steel grit screening machine

Abstract

The utility model discloses an anti-blocking type bearing steel grit screening machine which comprises a screening box, an upper screening net and a lower screening net are fixed in the screening box, a fixing rod located on the top of the upper screening net is fixed in the screening box, a connecting ring is welded to the outer wall of the bottom of the fixing rod, a hook is connected into the connecting ring in a sleeved mode, and a connecting rope is fixed to the bottom of the hook. An impact ball is fixed to the bottom end of the connecting rope, an elastic plate is integrally formed at one end of the hook, a matching groove is formed in the hook, the elastic plate is located in the matching groove, and supporting legs are arranged at the bottom of the screen box. The top of the upper screen mesh and the top of the lower screen mesh are connected with the impact ball through the connecting rope, so that the impact ball vibrates off bearing steel grits blocked on the upper screen mesh and the lower screen mesh through impact, the screening machine is prevented from being blocked during working, the screening machine does not need to be frequently maintained, and due to the use of the upper screen mesh and the lower screen mesh, the service life of the screening machine is prolonged. And the bearing steel grits can be subjected to three-stage screening at a time, so that the grading effect is better when the bearing steel grits are screened.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing steel grit screening equipment, in particular to an anti-blocking type bearing steel grit screening machine. Background Art

[0002] The characteristics of steel grit are moderate hardness, strong toughness, impact resistance, can be used repeatedly for several times in a row, have a long life, good rebound, strong adhesion, fast cleaning speed, low sand consumption, no breakage, high brightness of cleaned workpieces, and good technical effects. Bearing steel grit is special steel grit for grinding bearing surfaces.

[0003] Patent application No. 201621138562.3 discloses a steel sand vibrating grading screen device, including a vibrating box, fixed support feet, shock-absorbing springs, fixed connecting plates, protective covers, power connection devices, vibrating motors, force transmission plates, vibrating bins, steel sand sorting bins, main discharge ports, secondary discharge ports, and steel sand inlets. Four fixed support feet are provided below the vibrating box, shock-absorbing springs are provided on the large fixed support feet, and fixed connecting plates are provided below, and protective covers are provided on the vibrating motors. When the steel sand screening machine in the prior art is in use, the steel sand will get stuck on the screen of the screening machine. When a large amount of steel sand is stuck, the screening machine will be blocked, which will cause the screening machine to require frequent maintenance. Therefore, it is urgent to design an anti-blocking bearing steel sand screening machine to solve the above problems. Utility Model Content

[0004] The utility model aims to provide an anti-blocking bearing steel sand screening machine to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A blocking-proof bearing steel sand screening machine comprises a screen box, an upper screen and a lower screen are fixed inside the screen box, a fixing rod located at the top of the upper screen is fixed inside the screen box, a connecting ring is welded to the bottom outer wall of the fixing rod, a hook is sleeved inside the connecting ring, a connecting rope is fixed to the bottom of the hook, an impact ball is fixed to the bottom end of the connecting rope, a spring plate is integrally formed at one end of the hook, a matching groove is provided inside the hook, the spring plate is located inside the matching groove, legs are provided at the bottom of the screen box, mounting plates are welded to the outer walls on both sides of the screen box, and springs are fixed between the mounting plates and the legs.

[0007] Furthermore, a uniformly distributed discharge hopper is welded to an outer wall on one side of the screen box, and a vibration motor is fixed to an outer wall at the bottom of the screen box.

[0008] Furthermore, a cover plate is provided on the top of the screen box, and a feed hopper is fixed on the top outer wall of the cover plate.

[0009] Furthermore, a plug-in plate is welded to the bottom outer wall of the cover plate, and positioning sleeves are welded to the inner walls on both sides of the screen box, and the plug-in plate is plugged into the interior of the positioning sleeves.

[0010] Furthermore, a plug-in rod is fixed to the bottom outer wall of the mounting plate, and the bottom end of the plug-in rod extends to the inside of the supporting leg.

[0011] Furthermore, a nut is welded to an outer wall of one side of the screen box, a stud is threadedly connected to the inside of the nut, one end of the stud abuts against the plug-in plate, and a knob is fixed to the other end of the stud.

[0012] In the above technical scheme, the utility model provides an anti-blocking bearing steel sand screening machine, which has the following beneficial effects: an impact ball is connected to the top of the upper screen and the lower screen by a connecting rope, so that the impact ball can shake off the bearing steel sand stuck on the upper screen and the lower screen by impact, thereby preventing blockage when the screening machine is working, thereby making it unnecessary to frequently maintain the screening machine. The use of the upper screen and the lower screen can perform three-level screening on the bearing steel sand at one time, so that the grading effect of the bearing steel sand is better during screening; the impact ball is more convenient and firm to be fixed to the fixed rod by the provided hook and the hook is closed by the spring plate, thereby facilitating the installation of the impact ball and the fixed rod; the cover plate is plugged into the inside of the positioning sleeve by the plug-in plate, and the plug-in plate is squeezed and fixed by the stud, thereby making it more convenient to disassemble the cover plate from the screen box, thereby facilitating the opening and maintenance of the screen box. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0014] Figure 1 The present invention provides a schematic diagram of the main structure of an anti-blocking bearing steel sand screening machine embodiment.

[0015] Figure 2 The utility model provides a schematic diagram of the internal structure of an anti-blocking bearing steel sand screening machine embodiment.

[0016] Figure 3 The present invention is a schematic diagram of the positioning sleeve structure provided in an embodiment of an anti-blocking bearing steel sand screening machine of the utility model.

[0017] Figure 4 The present invention is a schematic diagram of a hook structure provided in an embodiment of an anti-blocking bearing steel sand screening machine of the utility model.

[0018] Figure 5 This is a schematic diagram of the enlarged structure of point A provided in an embodiment of an anti-blocking bearing steel sand screening machine of the utility model.

[0019] Description of reference numerals:

[0020] 1 screen box, 2 upper screen, 3 lower screen, 4 discharge hopper, 5 cover plate, 6 feed hopper, 7 mounting plate, 8 legs, 9 spring, 10 plug-in rod, 11 vibration motor, 12 positioning sleeve, 13 plug-in plate, 14 fixing rod, 15 impact ball, 16 nut, 17 stud, 18 knob, 19 connecting rope, 20 connecting ring, 21 hook, 22 spring plate, 23 matching groove. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0022] like Figure 1-5 As shown, an anti-blocking bearing steel sand screening machine provided by an embodiment of the utility model includes a screen box 1, an upper screen 2 and a lower screen 3 are fixed inside the screen box 1, a fixing rod 14 located on the top of the upper screen 2 is fixed inside the screen box 1, a connecting ring 20 is welded to the bottom outer wall of the fixing rod 14, a hook 21 is sleeved inside the connecting ring 20, a connecting rope 19 is fixed to the bottom of the hook 21, an impact ball 15 is fixed to the bottom end of the connecting rope 19, a spring plate 22 is integrally formed at one end of the hook 21, a matching groove 23 is provided inside the hook 21, the spring plate 22 is located inside the matching groove 23, a support leg 8 is provided at the bottom of the screen box 1, a mounting plate 7 is welded to the outer walls on both sides of the screen box 1, and a spring 9 is fixed between the mounting plate 7 and the support leg 8.

[0023] Specifically, in the present embodiment, a screen box 1 is included, wherein an upper screen 2 and a lower screen 3 are fixed inside the screen box 1, the mesh of the upper screen 2 is larger than that of the lower screen 3, so that the upper screen 2 and the lower screen 3 can screen out three different particle sizes of bearing steel sand, a fixing rod 14 located at the top of the upper screen 2 is fixed inside the screen box 1, and the top of the lower screen 3 also has a fixing rod 14, a connecting ring 20 is welded to the bottom outer wall of the fixing rod 14, a hook 21 is sleeved inside the connecting ring 20, a connecting rope 19 is fixed to the bottom of the hook 21, an impact ball 15 is fixed to the bottom end of the connecting rope 19, the impact ball 15 is in contact with the upper screen 2, and at the same time, the lower screen 3 is in contact with the impact ball 15 above it, and a spring plate 22 is integrally formed at one end of the hook 21, and the spring plate 22 can be elastically deformed after being subjected to force, and the hook A matching groove 23 is provided inside the hook 21, and the spring plate 22 is located inside the matching groove 23, so that the spring plate 22 can form a closed state for the hook 21, so that the hook 21 and the connecting ring 20 are not easily separated. Legs 8 are provided at the bottom of the screen box 1, and mounting plates 7 are welded to the outer walls on both sides of the screen box 1. Springs 9 are fixed between the mounting plates 7 and the legs 8, and the springs 9 elastically support the screen box 1. Evenly distributed discharge hoppers 4 are welded to the outer wall of one side of the screen box 1. There are three discharge hoppers 4, and they are arranged from top to bottom, so that three different particle sizes of bearing steel sand screened out can flow out from different discharge hoppers 4. A vibration motor 11 is fixed to the outer wall of the bottom of the screen box 1. Preferably, there are two vibration motors 11, and the vibration motor 11 is used to drive the screen box 1 to vibrate.

[0024] The utility model provides an anti-blocking bearing steel sand screening machine, in which an impact ball 15 is connected to the top of an upper screen 2 and a lower screen 3 by a connecting rope 19, so that the impact ball 15 can shake off the bearing steel sand stuck on the upper screen 2 and the lower screen 3 by impact, thereby preventing blockage when the screening machine is working, thereby making it unnecessary to frequently maintain the screening machine. The use of the upper screen 2 and the lower screen 3 can achieve the effect of three-level screening of the bearing steel sand at one time, so that the grading effect of the bearing steel sand is better when screening.

[0025] In another embodiment provided by the utility model, a cover plate 5 is provided on the top of the screen box 1, and a feed hopper 6 is fixed on the top outer wall of the cover plate 5, and the bearing steel sand to be screened is added to the screen box 1 from the feed hopper 6; a plug-in plate 13 is welded on the bottom outer wall of the cover plate 5, and positioning sleeves 12 are welded on the inner walls on both sides of the screen box 1, and the plug-in plate 13 is plugged into the inside of the positioning sleeve 12, and the positioning of the cover plate 5 is achieved by the cooperation of the plug-in plate 13 and the positioning sleeve 12, and a nut 16 is welded on the outer wall of one side of the screen box 1, and a stud 17 is threadedly connected to the inside of the nut 16, one end of the stud 17 is in conflict with the plug-in plate 13, and a knob 18 is fixed to the other end of the stud 17, and the cover plate 5 is plugged into the inside of the positioning sleeve 12 through the plug-in plate 13, and the plug-in plate 13 is squeezed and fixed by the stud 17, so that the cover plate 5 is more convenient to disassemble from the screen box 1, thereby facilitating the opening and maintenance of the screen box 1.

[0026] In another embodiment provided by the utility model, a plug-in rod 10 is fixed to the bottom outer wall of the mounting plate 7, and the bottom end of the plug-in rod 10 extends to the inside of the leg 8; there is a gap between the plug-in rod 10 and the leg 8 for left and right and up and down movement, so that the plug-in rod 10 will not hinder the spring 9 from flexibly supporting the screen box 1; when the spring 9 breaks, the plug-in rod 10 can limit the inclination of the screen box 1, thereby preventing the screening machine from tipping over.

[0027] Working principle: When the hook 21 needs to be hooked with the connecting ring 20 at the bottom of the fixing rod 14, the spring plate 22 of the hook 21 is pressed against the connecting ring 20, so that the connecting ring 20 is sleeved inside the hook 21 from the spring plate 22. At the same time, the spring plate 22 can be closed with the matching groove 23 by elastic force, so that the spring plate 22 can seal the hook 21 to prevent the hook 21 from being separated from the connecting ring 20, thereby making it more convenient and firm for the impact ball 15 to be connected with the fixing ring. When in use, the vibrating motor 11 is used to drive the screen box 1 to vibrate, and then the bearing steel sand is added from the feed hopper 6 to the inside of the screen box 1, so that the vibration generated by the screen box 1 can move the bearing steel sand on the upper screen 2. After preliminary screening, the medium-sized and small-sized bearing steel sands pass through the upper screen 2 and fall on the lower screen 3, and the larger-sized bearing steel sands are intercepted by the upper screen 2 and flow out from the top discharge hopper 4; the small-sized bearing steel sands falling on the lower screen 3 pass through the lower screen 3 and fall on the bottom inner wall of the screen box 1, and then the small-sized bearing steel sands flow out from the bottom discharge hopper 4; the medium-sized bearing steel sands intercepted by the lower screen 3 flow out from the middle discharge hopper 4; when the screen box 1 vibrates, the impact ball 15 continuously impacts the upper surfaces of the upper screen 2 and the lower screen 3, so that the bearing steel sands stuck on the upper screen 2 and the lower screen 3 are shaken off, so that the screening machine does not need to be frequently maintained when screening the bearing steel sands.

[0028] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An anti-blocking bearing steel sand screening machine, characterized in that: The invention comprises a screen box (1), wherein an upper screen (2) and a lower screen (3) are fixed inside the screen box (1), a fixing rod (14) located at the top of the upper screen (2) is fixed inside the screen box (1), a connecting ring (20) is welded to the bottom outer wall of the fixing rod (14), a hook (21) is sleeved inside the connecting ring (20), a connecting rope (19) is fixed to the bottom of the hook (21), a striking ball (15) is fixed to the bottom end of the connecting rope (19), a spring plate (22) is integrally formed at one end of the hook (21), a matching groove (23) is provided inside the hook (21), and the spring plate (22) is located inside the matching groove (23), a supporting leg (8) is provided at the bottom of the screen box (1), a mounting plate (7) is welded to the outer walls on both sides of the screen box (1), and a spring (9) is fixed between the mounting plate (7) and the supporting leg (8).

2. The anti-blocking bearing steel sand screening machine according to claim 1 is characterized in that: A uniformly distributed discharge hopper (4) is welded to an outer wall on one side of the screen box (1), and a vibration motor (11) is fixed to an outer wall at the bottom of the screen box (1).

3. The anti-blocking bearing steel sand screening machine according to claim 1 is characterized in that: A cover plate (5) is provided on the top of the screen box (1), and a feed hopper (6) is fixed to the top outer wall of the cover plate (5).

4. The anti-blocking bearing steel sand screening machine according to claim 3 is characterized in that: A plug-in plate (13) is welded to the bottom outer wall of the cover plate (5), and positioning sleeves (12) are welded to the inner walls on both sides of the screen box (1), and the plug-in plate (13) is plugged into the interior of the positioning sleeves (12).

5. The anti-blocking bearing steel sand screening machine according to claim 1, characterized in that: A plug-in rod (10) is fixed to the bottom outer wall of the mounting plate (7), and the bottom end of the plug-in rod (10) extends to the inside of the supporting leg (8).

6. The anti-blocking bearing steel sand screening machine according to claim 4, characterized in that: A nut (16) is welded to the outer wall of one side of the screen box (1), and a stud (17) is threadedly connected to the inside of the nut (16), one end of the stud (17) abuts against the plug-in plate (13), and a knob (18) is fixed to the other end of the stud (17).

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