Spindle sealing structure of agravic mixer

Abstract

The utility model relates to the technical field of zero-gravity mixer sealing, and discloses a zero-gravity mixer main shaft sealing structure which comprises a main rod, the right side of the main rod is fixedly connected with a connecting shaft, the left side of the outer wall of the connecting shaft is fixedly connected with a connecting ring, and the inner portion of the outer wall of the connecting ring is fixedly connected with a first fixing ring. The top of the outer wall of the first fixing ring is in threaded connection with a first bolt, the front side of the outer wall of the first bolt is in threaded connection with a nut, the right side of the main rod is fixedly connected with a first fixing sleeve, and the right side of the first fixing sleeve is fixedly connected with a sealing strip. The connecting shaft is connected with the main rod, the connecting ring and the first fixing ring are fixed on the connecting shaft through the first bolt and the nut, the first fixing sleeve is fixed on the main rod, the second fixing sleeve is connected with the first fixing sleeve through the second bolt to form a closed cavity, the closed cavity is filled with air, and the sealing strip prevents the air from flowing out and prevents materials or media from leaking from the connecting portion and the shaft end. Therefore, the sealing effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of gravityless mixer sealing technology, especially relates to a gravityless mixer main shaft sealing structure. BACKGROUND

[0002] The gravityless mixer is widely applied in many industries such as chemical industry, food, building material and feedstuff, is used for the efficient and uniform mixing of many different materials, when working, two main shafts drive the paddle to rotate at a certain rotating speed, so that the material generates complex movement track in the mixing chamber, thereby realizing fast and uniform mixing, since the properties of mixed materials are various, there are powder, granular and even corrosive, and the main shaft rotates continuously at high speed in the mixing process, which puts forward high requirement on the main shaft sealing structure, needs to ensure that it can be effectively sealed under various working conditions, prevents material leakage and foreign matter from entering.

[0003] Through the search, the utility model is a kind of main shaft sealing device for gravityless mixer, ceramic dynamic seal is sleeved with the main shaft that each main shaft of gravityless mixer end cover plate extends, ceramic dynamic seal includes the axial sealing portion that extends between end cover plate and main shaft, ring flange is connected to the outer end of axial sealing portion, dynamic seal gland is arranged on the main shaft outside ceramic dynamic seal and cooperates with ring flange, dynamic seal gland is connected with main shaft by screw, a plurality of axial compression springs are arranged between the outer end surface of ring flange and dynamic seal gland;Ceramic static seal is sleeved on axial sealing portion, the outer end of ceramic static seal abuts against the ring flange of ceramic dynamic seal, compression cover is arranged on ceramic static seal and fixedly connected with end cover plate, two symmetrical locking screws are arranged on the outer surface of compression cover and lock ceramic static seal, and the sealing effect is good, and foreign matter cannot be generated, but in actual use, since long time rubbing, material can be ground into powder, still can enter main shaft, leading to the sealing performance of main shaft reduces. UTILITY MODEL CONTENTS

[0004] In order to make up for the above shortcomings, the utility model provides a kind of main shaft sealing structure of gravityless mixer, to improve the problem of the sealing effect of main shaft reducing in prior art because long time rubbing, material can be ground into powder, still can enter main shaft.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: a gravity -free mixing machine main shaft sealing structure, including the main rod, the right side fixed connection of main rod has the connecting shaft, the outer wall left side fixed connection of connecting shaft has the connecting ring, the outer wall inside fixed connection of connecting ring has fixed ring no.

[0006] Through the above technical scheme: connecting shaft is linked with the main rod, and the connecting ring and the fixed ring no. are preliminarily fixed on the connecting shaft by bolt no. and nut, the fixed sleeve no. is fixed to the main rod, the fixed sleeve no. is connected with the fixed sleeve no. by bolt no. two, is steady in the right side of main rod by thread hole, is connected into closed cavity and fills air, and the sealing strip prevents air from flowing out, maintains the pressure in the cavity, prevents material or medium from leaking from the connecting part and the shaft end, thereby improve the sealing effect.

[0007] As a further description of the above technical scheme:

[0008] The cooling mechanism includes a connecting sleeve, the right side of the connecting sleeve is fixedly connected to the left side of the connecting shaft, two cooling channels are formed in the left side of the connecting shaft, a threaded groove is formed in the outer wall of the connecting sleeve, a threaded cover is threadedly connected to the outer wall of the threaded groove, and a leakage-proof plate is fixedly connected to the inner left side of the threaded cover.

[0009] Through the above technical scheme: cooling liquid flows into the threaded cooling channel on the left side of the connecting shaft from the outside, the threaded design prolongs the flow path and the contact time, so that it can fully absorb the heat generated by the working of the connecting shaft, and the cooling liquid is stored in the closed space formed by the connecting sleeve and the connecting shaft. The threaded cover is threadedly connected to the connecting sleeve to prevent leakage, and the leakage-proof plate is pressed against the channel outlet when tightened, so that the connecting rod can be cooled.

[0010] As a further description of the above technical scheme:

[0011] The outer wall right side of the main rod is fixedly connected with the fixed ring no. two, and a plurality of positioning holes are formed in the right side of the fixed ring no. two.

[0012] Through the above technical scheme: the fixed ring no. two is fixed to the outer wall right side of the main rod, and a plurality of positioning holes are formed in the right side thereof, which can be accurately positioned during equipment installation, and ensure that the installation positions of various components are accurate.

[0013] As a further description of the above technical scheme:

[0014] The outer wall of the connecting shaft is fixedly connected with a plurality of guide strips, and the right front end of the second fixing sleeve is fixedly connected with a cap.

[0015] Through the above technical scheme: the outer wall of the connecting shaft has a plurality of guide strips, which can play a guiding role during installation, making the installation smoother, and the right front end of the second fixing sleeve is connected with the cap for covering the air inlet after inflation.

[0016] As a further description of the above technical scheme:

[0017] The outer wall of the threaded cap is fixedly connected with a plurality of anti-skid strips, and the plurality of anti-skid strips are designed to be smooth.

[0018] Through the above technical scheme: the outer wall of the threaded cap is provided with a plurality of anti-skid strips designed to be smooth, which can increase the friction between the anti-skid strips and the hand when the threaded cap needs to be opened, facilitating operation.

[0019] As a further description of the above technical scheme:

[0020] The outer wall of the connecting shaft is fixedly connected with a plurality of guide strips, and the right front end of the second fixing sleeve is fixedly connected with a cap.

[0021] Through the above technical scheme: the outer wall of the connecting shaft has a plurality of guide strips, which can play a guiding role during installation, making the installation smoother, and the right front end of the second fixing sleeve is connected with the cap for covering the air inlet after inflation.

[0022] As a further description of the above technical scheme:

[0023] The diameter of the first fixing ring is smaller than the diameter of the connecting ring, and the diameter of the sealing ring is smaller than the diameter of the groove.

[0024] Through the above technical scheme: the diameter of the first fixing ring is smaller than the diameter of the connecting ring, which ensures compact installation and does not affect the connection strength, and the diameter of the sealing ring is smaller than the diameter of the groove, facilitating embedding and realizing sealing.

[0025] As a further description of the above technical scheme:

[0026] The diameter of the anti-leakage plate is smaller than the diameter of the connecting sleeve, and the plurality of anti-skid strips are fixedly connected to the outer wall of the threaded cap at equal distances.

[0027] Through the above technical scheme: the diameter of the anti-leakage plate is smaller than the diameter of the connecting sleeve, which ensures that the anti-leakage plate can normally play the anti-leakage role, and the plurality of anti-skid strips are distributed at equal distances on the outer wall of the threaded cap, providing stable friction.

[0028] The utility model has the following beneficial effects:

[0029] 1. The utility model discloses a connecting shaft is connected with the main stem, and the connecting ring and fixed ring one preliminary fixation is completed with the nut on the connecting shaft, and the fixed sleeve one is fixed in the main stem, and the fixed sleeve two is connected with the fixed sleeve one through bolt no. 2, and is steady in the right side of the main stem through the thread hole, and is connected into the closed cavity and fills the air, and the sealing strip prevents the air from flowing out, maintains the pressure in the cavity, prevents the material or medium from leaking from the connecting part and the axle end, thereby realize the promotion sealing effect.

[0030] 2. The utility model discloses a cooling liquid from the outside flows into the connecting shaft left side threadlike cooling channel, and the thread design has prolonged the flow path and the contact length, makes it fully absorb the heat generated during the operation of the connecting shaft, and the efficient cooling guarantees the stable operation of the equipment, and the cooling liquid is stored in the closed space formed by the connecting sleeve and the connecting shaft, and the thread cover is prevented from leaking with the thread cooperation of the connecting sleeve, and the leakproof plate is pressed against the channel export when screwing, thereby realize the cooling of the connecting rod. DRAWINGS

[0031] Figure 1 It is the perspective drawing of the gravity -free mixing machine main shaft sealing structure that the utility model proposes;

[0032] Figure 2 It is the right view of the gravity -free mixing machine main shaft sealing structure that the utility model proposes;

[0033] Figure 3 It is the left view of the gravity -free mixing machine main shaft sealing structure that the utility model proposes;

[0034] Figure 4 It is the structure schematic diagram of the sealing strip of the gravity -free mixing machine main shaft sealing structure that the utility model proposes;

[0035] Figure 5 It is the section view of the thread groove of the gravity -free mixing machine main shaft sealing structure that the utility model proposes.

[0036] LEGEND:

[0037] 1, the main stem, 2, cooling mechanism, 201, cooling channel, 202, connecting sleeve, 203, thread groove, 204, thread cover, 205, leakproof plate, 3, connecting shaft, 4, connecting ring, 5, fixed ring one, 6, bolt one, 7, nut, 8, fixed sleeve one, 9, sealing strip, 10, fixed sleeve two, 11, bolt no. 2, 12, thread hole, 13, fixed ring two, 14, positioning hole, 15, guide strip, 16, cap, 17, antiskid strip, 18, sealing ring, 19, recess. DETAILED DESCRIPTION

[0038] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0039] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. Figure 1 Figure 4 The present application provides an embodiment: a main shaft sealing structure of a gravity-free mixer, comprising a main rod 1, a connecting shaft 3 fixedly connected to the right side of the main rod 1 and used for connecting the sealing structure, a connecting ring 4 fixedly connected to the outer wall left side of the connecting shaft 3, a fixed ring one 5 fixedly connected to the inner wall of the outer wall of the connecting ring 4, a bolt one 6 threadedly connected to the top of the outer wall of the fixed ring one 5 and used for fixing the fixed ring one 5 on the connecting ring 4, a nut 7 threadedly connected to the front side of the outer wall of the bolt one 6 and used for fixing the bolt one 6, a fixed sleeve one 8 fixedly connected to the right side of the main rod 1, a sealing strip 9 fixedly connected to the right side of the fixed sleeve one 8, a fixed sleeve two 10 arranged on the right side of the fixed sleeve one 8, a plurality of bolt twos 11 threadedly connected to the right side of the fixed sleeve two 10, and the fixed sleeve one 8 and the fixed sleeve two 10 being connected together through the bolt twos 11 and forming a cavity inside, the cavity being filled with air, and the sealing strip 9 on the right side of the fixed sleeve one 8 preventing the air inside from flowing out, and a plurality of thread holes 12 being arranged on the right side of the fixed sleeve one 8 and used for fixing the fixed sleeve one 8 and the fixed sleeve two 10 on the right side of the main rod 1, and a cooling mechanism 2 arranged on the left side of the connecting shaft 3 and used for cooling the connecting shaft 3.

[0040] Specifically, the connecting shaft 3 used for connecting the sealing structure is connected to the right side of the main rod 1, the connecting ring 4 is closely connected to the outer wall left side of the connecting shaft 3, the fixed ring one 5 is fixed to the inner wall of the outer wall of the connecting ring 4, the fixed ring one 5 is closely fixed to the connecting ring 4 through the bolt one 6 threadedly connected to the top, the nut 7 is threadedly connected to the front side of the outer wall of the bolt one 6 to ensure the stability of the bolt one 6, the fixed sleeve one 8 is fixed to the right side of the main rod 1, the sealing strip 9 is attached to the right side of the fixed sleeve one 8, the fixed sleeve two 10 is arranged on the right side of the fixed sleeve one 8, the plurality of bolt twos 11 are threadedly connected to the right side of the fixed sleeve two 10, the fixed sleeve one 8 and the fixed sleeve two 10 are closely connected through the bolt twos 11, an enclosed cavity is formed inside after the two are connected, the cavity is filled with air, the sealing strip 9 on the right side of the fixed sleeve one 8 plays a key role and effectively prevents the air inside from flowing out, in addition, the plurality of thread holes 12 are arranged on the right side of the fixed sleeve one 8, the thread holes 12 are used for fixing the fixed sleeve one 8 and the fixed sleeve two 10 on the right side of the main rod 1 during installation, and the stability and reliability of the entire sealing structure are ensured.

[0041] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. Figure 5 ​The cooling mechanism 2 comprises a connecting sleeve 202 fixedly connected to the left side of the connecting shaft 3, the left side of the connecting shaft 3 is provided with two cooling channels 201, the two cooling channels 201 are threadedly provided in the inside of the connecting shaft 3, the cooling liquid flows into the inside, the outer wall of the connecting sleeve 202 is provided with a threaded groove 203, the threaded groove 203 is threadedly connected with a threaded cover 204, the cooling liquid in the cooling channel 201 is prevented from flowing out, the inside left side of the threaded cover 204 is fixedly connected with a leakage-proof plate 205, when the threaded cover 204 covers, the leakage-proof plate 205 abuts against the cooling channel 201, and the cooling liquid is prevented from flowing out;

[0042] Specifically, the connecting sleeve 202 is fixedly connected to the left side of the connecting shaft 3, the left side of the connecting shaft 3 is provided with two thread-shaped cooling channels 201, the cooling liquid can flow into the cooling channels 201, the flow path and time of the cooling liquid can be increased, the cooling effect is improved, the outer wall of the connecting sleeve 202 is provided with a threaded groove 203, the threaded groove 203 is threadedly connected with a threaded cover 204, the threaded cover 204 prevents the cooling liquid in the cooling channel 201 from flowing out, the inside left side of the threaded cover 204 is fixedly connected with a leakage-proof plate 205, when the threaded cover 204 tightly covers the connecting sleeve 202, the leakage-proof plate 205 abuts against the cooling channel 201, the sealing performance is further improved, the leakage of the cooling liquid is effectively avoided, and the normal work of the cooling system is ensured.

[0043] With reference to Figure 1 and Figure 2 The outer wall of the main rod 1 is fixedly connected with a fixed ring two 13 at the right side, the right side of the fixed ring two 13 is provided with a plurality of positioning holes 14, which are used for positioning during installation, the outer wall of the connecting shaft 3 is fixedly connected with a plurality of guide strips 15, which are used for guiding during installation, the right side of the fixed sleeve two 10 is fixedly connected with a cap 16 at the front end, the outer wall of the threaded cover 204 is fixedly connected with a plurality of anti-skid strips 17, the plurality of anti-skid strips 17 are designed to be smooth, and the friction between the anti-skid strips 17 and the hand is increased when the threaded cover 204 is opened;

[0044] Specifically, the outer wall of the main rod 1 is fixedly connected with a fixed ring two 13 at the right side, the right side of the fixed ring two 13 is provided with a plurality of positioning holes 14, which are used for positioning during installation, the outer wall of the connecting shaft 3 is fixedly connected with a plurality of guide strips 15, which are used for guiding during installation, the right side of the fixed sleeve two 10 is fixedly connected with a cap 16 at the front end, the outer wall of the threaded cover 204 is fixedly connected with a plurality of anti-skid strips 17, the plurality of anti-skid strips 17 are designed to be smooth, and the friction between the anti-skid strips 17 and the hand is increased when the threaded cover 204 is opened;

[0045] With reference to Figure 4 and Figure 5The outer wall of the connecting shaft 3 is fixedly connected with a sealing ring 18 in the middle part, the inner part of the fixed sleeve two 10 is provided with a groove 19 to prevent the internal gas from flowing out, the diameter of the fixed ring one 5 is smaller than that of the connecting ring 4, the diameter of the sealing ring 18 is smaller than that of the groove 19, the diameter of the leakage prevention plate 205 is smaller than that of the connecting sleeve 202, and the adjacent multiple anti-skid strips 17 are fixedly connected to the outer wall of the threaded cap 204 at equal intervals.

[0046] Specifically, the outer wall of the connecting shaft 3 is fixedly connected with a sealing ring 18 in the middle part, the inner part of the fixed sleeve two 10 is provided with a groove 19 to prevent the internal gas from flowing out, the diameter of the fixed ring one 5 is smaller than that of the connecting ring 4, the diameter of the sealing ring 18 is smaller than that of the groove 19, the diameter of the leakage prevention plate 205 is smaller than that of the connecting sleeve 202, and the adjacent multiple anti-skid strips 17 are fixedly connected to the outer wall of the threaded cap 204 at equal intervals.

[0047] Working principle: the connecting shaft 3 is connected with the main rod 1, the connecting ring 4 and the fixed ring one 5 are fixed on the connecting shaft 3 through the bolt one 6 and the nut 7 to complete the preliminary connection, the fixed sleeve one 8 is fixed with the main rod 1, the fixed sleeve two 10 is connected with the fixed sleeve one 8 through the bolt two 11, and is fixed on the right side of the main rod 1 by using the threaded hole 12 on the right side of the fixed sleeve one 8 to ensure the stability of the whole structure, after the fixed sleeve one 8 and the fixed sleeve two 10 are connected, an enclosed cavity is formed in the inside and is filled with air, the sealing strip 9 on the right side of the fixed sleeve one 8 plays a key role and can effectively prevent the air in the cavity from flowing out, so as to maintain the stability of the air pressure in the cavity and make the sealing cavity become a relatively independent and sealed space, when there is pressure outside trying to make the material or other medium enter, the air pressure in the sealing cavity plays a buffering and blocking role, due to the sealing property of the sealing cavity, the internal air pressure can resist the external pressure, so as to prevent the material or medium from leaking from the connecting part of the fixed sleeve one 8 and the fixed sleeve two 10 and the shaft end, and a good sealing effect is achieved.

[0048] And, the cooling liquid flows into the two thread-shaped cooling channels 201 on the left side of the connecting shaft 3 from an external cooling liquid source, the thread-shaped design increases the flow path of the cooling liquid in the channel, prolongs the contact time of the cooling liquid with the connecting shaft 3, so that the cooling liquid can more fully absorb the heat generated by the connecting shaft 3 in work, efficiently take away the heat, improve the cooling effect, guarantee the stable operation of the connecting shaft 3 and related equipment, after the cooling liquid completes heat exchange in the cooling channel 201, the connecting sleeve 202 is closely connected with the connecting shaft 3, which provides a relatively closed storage space for the cooling liquid, the thread groove 203 on the outer wall cooperates with the threaded cover 204, which prevents the cooling liquid from leaking from the connecting sleeve 202 under normal circumstances, when the threaded cover 204 is screwed to cover the connecting sleeve 202, the leakage-proof plate 205 on the left side plays a key role, the leakage-proof plate 205 just abuts against the outlet of the cooling channel 201, further enhancing the sealing performance, even under special circumstances such as equipment vibration and cooling liquid pressure fluctuation, cooling liquid leakage can be effectively avoided, ensuring that the cooling liquid of the cooling system can circulate stably and continuously play a cooling role, guaranteeing the normal operation of the equipment.

[0049] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A sealing structure for the main shaft of a zero-gravity mixer, comprising a main rod (1), characterized in that: A connecting shaft (3) is fixedly connected to the right side of the main rod (1). A connecting ring (4) is fixedly connected to the left side of the outer wall of the connecting shaft (3). A fixing ring (5) is fixedly connected to the inner side of the outer wall of the connecting ring (4). A bolt (6) is threadedly connected to the top of the outer wall of the fixing ring (5). A nut (7) is threadedly connected to the front side of the outer wall of the bolt (6). A fixing sleeve (8) is fixedly connected to the right side of the main rod (1). A sealing strip (9) is fixedly connected to the right side of the fixing sleeve (8). A fixing sleeve (10) is provided on the right side of the fixing sleeve (8). Multiple bolts (11) are threadedly connected to the right side of the fixing sleeve (10). Multiple threaded holes (12) are opened on the right side of the fixing sleeve (8). A cooling mechanism (2) is provided on the left side of the connecting shaft (3). The cooling mechanism (2) is used to cool the connecting shaft (3).

2. The zero-gravity mixer main shaft sealing structure according to claim 1, characterized in that: The cooling mechanism (2) includes a connecting sleeve (202), the right side of which is fixedly connected to the left side of the connecting shaft (3). Two cooling channels (201) are opened on the left side of the connecting shaft (3). A threaded groove (203) is opened on the outer wall of the connecting sleeve (202). A threaded cover (204) is threadedly connected to the outer wall of the threaded groove (203). A leak-proof plate (205) is fixedly connected to the left side of the inside of the threaded cover (204).

3. The zero-gravity mixer main shaft sealing structure according to claim 1, characterized in that: A fixing ring 2 (13) is fixedly connected to the right side of the outer wall of the main rod (1), and multiple positioning holes (14) are opened on the right side of the fixing ring 2 (13).

4. The zero-gravity mixer main shaft sealing structure according to claim 1, characterized in that: Multiple guide strips (15) are fixedly connected to the outer wall of the connecting shaft (3), and a cap (16) is fixedly connected to the right front end of the fixing sleeve (10).

5. The zero-gravity mixer main shaft sealing structure according to claim 2, characterized in that: The outer wall of the threaded cap (204) is fixedly connected with multiple anti-slip strips (17), all of which are rounded.

6. The zero-gravity mixer main shaft sealing structure according to claim 1, characterized in that: A sealing ring (18) is fixedly connected to the middle of the outer wall of the connecting shaft (3), and a groove (19) is provided inside the fixing sleeve (10).

7. The zero-gravity mixer main shaft sealing structure according to claim 6, characterized in that: The diameter of the fixing ring (5) is smaller than the diameter of the connecting ring (4), and the diameter of the sealing ring (18) is smaller than the diameter of the groove (19).

8. The zero-gravity mixer main shaft sealing structure according to claim 5, characterized in that: The diameter of the leak-proof plate (205) is smaller than the diameter of the connecting sleeve (202), and the multiple anti-slip strips (17) are fixedly connected to the outer wall of the threaded cover (204) at equal intervals.

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