Sand leakage prevention structure of main shaft of sand blasting machine

Abstract

The utility model discloses a sand leakage prevention structure of a main shaft of a sand blasting machine, and relates to the technical field of sand blasting machines. The lower end of the main shaft is provided with an impeller and a connecting flange, the upper side of the connecting flange is fixedly connected with a connecting sleeve, the main shaft is provided with a double-lip framework oil seal, one side of the main shaft is provided with a first half-moon disc, and the other side of the main shaft is provided with a second half-moon disc matched with the first half-moon disc; and a mounting groove is formed in the second half-moon disc, and a clamping mechanism is arranged in the mounting groove. Through the arrangement of a triple sand prevention system of the connecting flange, the first half-moon disc, the second half-moon disc and the double-lip framework oil seal, the track of sand grains is effectively changed, layer-by-layer interception is achieved, the sand entering risk of the bearing is greatly reduced, the service life of the bearing is prolonged, firm installation of the first half-moon disc and the second half-moon disc is guaranteed through the inserting plate, the inserting groove and the clamping mechanism, dismounting and overhauling are convenient, and the service life of the bearing is prolonged. And the maintenance working efficiency of the sand blasting machine is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sand blasting machine technical field, concretely relates to a sand blasting machine main shaft sand leakage prevention structure. BACKGROUND

[0002] In modern industrial production, sand blasting machine as an important surface treatment equipment, is widely used in metal, plastic, glass and other material cleaning, rust removal, deburring and increasing roughness process. Sand blasting machine is shot to workpiece surface by high speed abrasive (such as sand) to achieve the desired surface treatment effect.

[0003] In the existing sand blasting machine, the throw head usually adopts the direct connection type structure of main shaft and impeller, however, this structure has obvious defects in preventing sand particles from entering the main shaft bearing, in the actual working process of sand blasting machine, due to the harsh sand blasting environment, sand particles are extremely easy to leak into the connection area of main shaft and impeller under the influence of various factors, such as airflow disturbance, component vibration, etc., causing irreversible damage to the bearing, with the accumulation of damage, the rotation accuracy of the bearing rapidly decreases, the friction force sharply increases, eventually causing the bearing to fail and be completely damaged, and the bearing needs to be replaced, increasing the use cost.

[0004] Therefore, the utility model is provided. UTILITY MODEL CONTENT

[0005] The utility model solves the technical problem in prior art, and provides a sand blasting machine main shaft sand leakage prevention structure.

[0006] To solve the above technical problems, the basic idea of the technical scheme of the utility model is as follows:

[0007] A sand blasting machine main shaft sand leakage prevention structure, comprising: a main shaft, a lower end of the main shaft is provided with an impeller, the lower end of the main shaft is provided with a connecting flange, the upper side of the connecting flange is fixedly connected with a connecting sleeve, a double-lip skeleton oil seal is arranged on the main shaft, one side of the main shaft is provided with a first half moon disc, the other side of the main shaft is provided with a second half moon disc matched with the first half moon disc, an installation groove is formed in the inside of the second half moon disc, a clamping mechanism is arranged in the inside of the installation groove, two insertion slots are formed in one side of the second half moon disc, two insertion plates are fixedly connected with one side of the first half moon disc, clamping grooves are formed in the opposite sides of the two insertion plates, and anti-skid pads are arranged on the opposite sides of the first half moon disc and the second half moon disc.

[0008] By setting the connecting flange, the first half moon disc, the second half moon disc and the double-lip skeleton oil seal three sand prevention systems, the sand particle trajectory is effectively changed, and layer-by-layer interception is realized, so that the risk of sand entering the bearing is greatly reduced, the service life of the bearing is prolonged, the insertion plates, the insertion slots and the clamping mechanism ensure firm installation of the first half moon disc and the second half moon disc, the first half moon disc and the second half moon disc are convenient to disassemble and overhaul, and the working efficiency of sand blasting machine overhaul is improved.

[0009] Preferably, the main shaft is fixedly connected with the connecting sleeve by bolts, the insertion plate is clamped with the insertion slot, and the anti-skid pad is matched with the main shaft.

[0010] Preferably, the clamping mechanism comprises two sliding plates slidingly matched with the inner wall of the mounting groove, and the opposite sides of the two sliding plates are fixedly connected with trapezoidal clamping blocks, and the inner wall of the mounting groove is rotationally matched with a winding roller shaft, and the two sliding plates are provided with traction ropes between the two sliding plates and the winding roller shaft.

[0011] Preferably, the trapezoidal clamping blocks are clamped with the clamping slots, the trapezoidal clamping blocks are slidingly matched with one side of the inner wall of the insertion slot, and the two ends of the traction ropes are fixedly connected with the winding roller shaft and the sliding plates respectively.

[0012] Preferably, the first half moon disc is provided with a counterweight groove, and the impeller is provided with a plurality of arc grooves.

[0013] Preferably, the lower side of the connecting flange is provided with a ring groove, and the upper side of the impeller is fixedly connected with a ring block matched with the ring groove.

[0014] Preferably, the two sides of the inner wall of the ring block are fixedly connected with fool-proof blocks, and the two sides of the inner wall of the fool-proof groove are provided with fool-proof grooves matched with the fool-proof blocks.

[0015] Preferably, the two sides of the impeller are rotationally matched with locking bolts, and the two sides of the ring block are provided with screw grooves matched with the locking bolts.

[0016] After the above technical scheme is adopted, the present application has the following advantages compared with the prior art, of course, any product implementing the present application does not necessarily need to achieve all the advantages described below:

[0017] By setting the connecting flange, the first half moon disc, the second half moon disc and the double-lip skeleton oil seal three-sand prevention system, the trajectory of sand particles is effectively changed, and the sand is intercepted layer by layer, the risk of sand entering the bearing is greatly reduced, the service life is prolonged, and the insertion plate, the insertion slot and the clamping mechanism ensure that the first half moon disc and the second half moon disc are firmly installed, which facilitates disassembly and maintenance, and improves the work efficiency of sand blasting machine maintenance.

[0018] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings in the following description are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings. In the drawings:

[0020] Figure 1 It is a three-dimensional structure schematic view of an embodiment of the present application;

[0021] Figure 2It is the explosion structure schematic view of an embodiment of the utility model;

[0022] Figure 3 It is the impeller and the connecting flange section structure schematic view of an embodiment of the utility model;

[0023] Figure 4 It is the first, second half moon connection structure schematic view of an embodiment of the utility model;

[0024] Figure 5 It is the carding mechanism structure schematic view of an embodiment of the utility model.

[0025] In the drawings, the component list represented by each sign is as follows:

[0026] 1, main shaft;2, impeller;3, connecting flange;4, connecting sleeve;5, double-lip skeleton oil seal;6, first half moon;7, second half moon;8, installation groove;9, carding mechanism;91, sliding plate;92, trapezoidal carding block;93, winding roller shaft;94, traction rope;10, insertion slot;11, insertion plate;12, carding slot;13, non-slip pad;14, counterweight groove;15, ring groove;16, ring block;17, foolproof block;18, foolproof slot;19, locking bolt;20, threaded groove;21, arcuate slot.

[0027] It should be noted that these drawings and textual descriptions are not intended to limit the concept range of the utility model in any way, but to illustrate the concept of the utility model to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments.

[0029] Therefore, the following detailed description of the embodiments of the utility model is not intended to limit the scope of the claimed utility model, but only represents some embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the utility model.

[0030] It should be noted that the embodiments in the utility model and the features and technical schemes in the embodiments can be combined with each other without conflict.

[0031] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0032] In the description of the utility model, it needs to explain, the orientation or position relation that the term "upper", "lower" and the like indicate is based on the orientation or position relation that the drawing shows, or it is the orientation or position relation that the product of the invention uses commonly placed, or it is the orientation or position relation that the person skilled in the art commonly understands, the term is only for the convenience of describing the utility model and simplifying the description, and it is not indicated or implied that the device or element indicated must have a particular orientation, is constructed and operated with a particular orientation, therefore, it can not be understood as the restriction of the utility model.In addition, the terms "first", "second" and the like are only used for distinguishing description, and can not be understood as indicating or implying relative importance.

[0033] In order for the person skilled in the art to better understand the utility model scheme, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings.

[0034] It should be noted that the embodiments in the utility model and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0035] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0036] Example 1

[0037] Please refer to Figures 1-5 A sand blasting machine main shaft sand leakage prevention structure, comprising: main shaft 1, the lower end of main shaft 1 is provided with impeller 2, the lower end of main shaft 1 is provided with connecting flange 3, the upper side of connecting flange 3 is fixedly connected with connecting sleeve 4, double-lip skeleton oil seal 5 is installed on main shaft 1, one side of main shaft 1 is provided with first half moon plate 6, the other side of main shaft 1 is provided with second half moon plate 7 matched with first half moon plate 6, installation groove 8 is arranged in the inside of second half moon plate 7, clamping mechanism 9 is arranged in the inside of installation groove 8, two insertion slots 10 are arranged in the side of second half moon plate 7, two insertion plates 11 are fixedly connected in the side of first half moon plate 6, clamping groove 12 is arranged in the opposite side of two insertion plates 11, anti-skid pad 13 is arranged in the opposite side of first half moon plate 6 and second half moon plate 7.Main shaft 1 and connecting sleeve 4 are fixedly connected through bolts, insertion plate 11 and insertion slot 10 are clamped, anti-skid pad 13 cooperates with main shaft 1.

[0038] Implementation process: when the sand blasting machine starts, the motor drives the main shaft 1 to rotate, the main shaft 1 drives the impeller 2 to rotate at high speed to carry out sand blasting work, the connecting flange 3 preliminarily blocks the sand particles, which is in the key position between the main shaft 1 and the impeller 2, the ring groove 15 on the lower side of the connecting flange 3 is matched with the ring block 16 on the upper side of the impeller 2, the installation direction is further ensured to be correct through the foolproof block 17 and the foolproof groove 18, the locking bolts 19 on both sides are screwed into the threaded grooves 20 to firmly fix the two, which ensures that the connection is tight and concentric, the structure design of the connecting flange 3 does not affect the power transmission and airflow direction between the main shaft 1 and the impeller 2, and the hollow part itself or existing can change the movement track of part of the sand particles, so that the sand particles are thrown out from the corresponding place of the arc-shaped groove 21, realizing the preliminary sand particle blocking and diversion, the double half moon structure protection is started when the sand particles that pass through the connecting flange 3 come, due to the high-speed rotation of the double half moon, according to the principle of centrifugal force, the sand particles will be quickly thrown away, far away from the main shaft 1 bearing, moreover, the counterweight groove 14 accurately adjusts the mass distribution of the double half moon, effectively balances its moment of inertia, avoids vibration caused by uneven weight, further guarantees the stability of rotation, continuously and efficiently blocks the sand particles from invading, finally, under the action of the double-lip skeleton oil seal 5, relying on the inner and outer two layers of sealing lips, the outer layer resists the impurities such as fine steel sand and dust in the external environment, and the inner layer closely fits the main shaft 1 to prevent lubricating oil leakage and protect the bearing safety.

[0039] Implementation benefits: through the multi-layer protection system, the sand particles are intercepted, diverted and blocked from the source, transmission path to the bearing near area, greatly reducing the risk of fine steel sand entering the bearing area, effectively protecting the bearing from sand particle erosion and prolonging the service life of the bearing.

[0040] Example 2

[0041] The clamping mechanism 9 includes two sliding plates 91 slidingly fitted on the inner wall of the mounting groove 8, the opposite sides of the two sliding plates 91 are fixedly connected with trapezoidal clamping blocks 92, the inner wall of the mounting groove 8 is rotationally fitted with a winding roller shaft 93, and the two sliding plates 91 and the winding roller shaft 93 are provided with traction ropes 94 therebetween. The trapezoidal clamping block 92 is clamped with the clamping groove 12, and the trapezoidal clamping block 92 is slidingly fitted on one side of the inner wall of the insertion groove 10. The two ends of the traction rope 94 are fixedly connected with the winding roller shaft 93 and the sliding plate 91 respectively. The first half moon 6 is provided with a counterweight groove 14, and the impeller 2 is provided with a plurality of arc-shaped grooves 21. The lower side of the connecting flange 3 is provided with a ring groove 15, and the upper side of the impeller 2 is fixedly connected with a ring block 16 matched with the ring groove 15. The inner wall of the ring block 16 is fixedly connected with foolproof blocks 17 on both sides, and the inner wall of the foolproof groove 18 is provided with foolproof grooves 18 matched with the foolproof blocks 17 on both sides. The two sides of the impeller 2 are rotationally fitted with locking bolts 19, and the two sides of the ring block 16 are provided with threaded grooves 20 matched with the locking bolts 19.

[0042] Implementation process: the first half moon 6 is connected with the second half moon 7 through the insertion board 11 and the slot 10, the insertion board 11 is matched with the trapezoidal clamping block 92, the first half moon 6 and the second half moon 7 are connected stably, the anti-skid pad 13 enhances the friction with the main shaft 1, so that the first half moon 6 and the second half moon 7 can rotate with the main shaft 1 at the same speed stably, when the first half moon 6 and the second half moon 7 need to be disassembled, the traction rope 94 is wound by rotating the winding roller shaft 93, the slide plate 91 is pulled to separate the trapezoidal clamping block 92 from the insertion board 11, the limiting of the insertion board 11 is cancelled, and the first half moon 6 and the second half moon 7 are disassembled.

[0043] The implementation benefits: the first half moon 6 and the second half moon 7 are disassembled and maintained conveniently, the convenience of equipment maintenance is increased, and the maintenance efficiency of the equipment is improved.

[0044] The above embodiments are only used to illustrate the utility model and are not limited to the technical solutions described in the utility model. Although the utility model has been described in detail with reference to the above embodiments, the utility model is not limited to the above specific embodiments, and any modification or equivalent replacement of the utility model is included. All technical solutions and improvements that do not deviate from the spirit and scope of the invention are included in the scope of the claims of the utility model.

Claims

1. A sand-leakage prevention structure for the main shaft of a sandblasting machine, characterized in that, The utility model relates to a main shaft (1) lower end is provided with an impeller (2), the lower end of main shaft (1) is provided with the connecting flange (3), the upper side of connecting flange (3) is fixedly connected with the connecting sleeve (4), the main shaft (1) is equipped with double-lip skeleton oil seal (5), one side of main shaft (1) is provided with first half moon (6), the other side of main shaft (1) is provided with the second half moon (7) matched with first half moon (6), the inside of second half moon (7) is provided with installation groove (8), and the inside of installation groove (8) is provided with the clamping mechanism (9), one side of second half moon (7) is provided with two insertion slots (10), one side of first half moon (6) is fixedly connected with two insertion plates (11), and the opposite side of two insertion plates (11) is provided with clamping groove (12), and the opposite side of first half moon (6) and second half moon (7) is equipped with antiskid pad (13). The main shaft (1) is fixedly connected with the connecting sleeve (4) through the bolt, the insertion plate (11) is clamped with the insertion slot (10), and the antiskid pad (13) is matched with the main shaft (1).

2. The sand leakage prevention structure for a sandblaster spindle according to claim 1, wherein The clamping mechanism (9) includes two sliding plates (91) slidably fitted on the inner wall of the installation groove (8), the opposite sides of the two sliding plates (91) are fixedly connected with trapezoidal clamping blocks (92), the inner wall of the installation groove (8) is rotatably fitted with a winding roller shaft (93), and the two sliding plates (91) and the winding roller shaft (93) are provided with traction ropes (94) therebetween.

3. The sand leakage prevention structure of a sandblaster spindle according to claim 1, wherein The trapezoidal clamping block (92) is clamped with the clamping groove (12), the trapezoidal clamping block (92) is slidably fitted on one side of the inner wall of the insertion slot (10), and the two ends of the traction rope (94) are fixedly connected with the winding roller shaft (93) and the sliding plate (91) respectively.

4. The sand leakage prevention structure of a sandblaster spindle according to claim 3, characterized in that, A counterweight groove (14) is formed in the first half moon (6), and a plurality of arc grooves (21) are formed in the impeller (2).

5. The sand leakage prevention structure for a sandblaster spindle according to claim 1, wherein A ring groove (15) is formed in the lower side of the connecting flange (3), and a ring block (16) matched with the ring groove (15) is fixedly connected to the upper side of the impeller (2).

6. The sand leakage prevention structure for a sandblaster spindle according to claim 1, wherein Anti-stupid blocks (17) are fixedly connected to the inner walls of the ring block (16), and anti-stupid grooves (18) matched with the anti-stupid blocks (17) are formed in the inner walls of the anti-stupid grooves (18).

7. The sand leakage prevention structure of a sandblaster spindle according to claim 6, wherein Locking bolts (19) are rotatably fitted to the two sides of the impeller (2), and screw grooves (20) matched with the locking bolts (19) are formed in the two sides of the ring block (16).

8. The sand leakage prevention structure of a sandblaster spindle according to claim 6, wherein ​

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