Hopper cleaning machine with rotary nozzle structure

Abstract

The hopper cleaning machine with the rotary nozzle structure comprises a shell, the shell is provided with an inner cavity, an upper opening of the shell is connected with a hollow rotary seat, and the hollow rotary seat is connected with a rotary spray-washing mechanism and a water inlet mechanism. Cleaning water sequentially passes through a first flow channel in the hollow rotary seat and a second flow channel in the transmission connecting piece through the water inlet mechanism and then enters an inner cavity of the nozzle frame through a water pipeline to be communicated with all the nozzles, the transmission connecting piece is driven by the rotary driving mechanism to rotate, and the transmission connecting piece can drive the nozzle frame to rotate. According to the rotary nozzle frame structure, the defect that the threshold of a cavity is high due to a traditional chassis rotary structure is overcome, the lowest drainage level of equipment is effectively guaranteed, meanwhile, a rotary part is located at the top of the shell, and maintenance is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of hopper cleaning machines, in particular to a hopper cleaning machine with a rotating nozzle structure. Background Art

[0002] At present, the pharmaceutical, food, chemical and other industries use a large number of stainless steel barrels, IBC turnover hoppers, and mixed turnover hoppers to turnover slurries or drug raw materials. Cleaning the turnover hopper is an important task for current pharmaceutical manufacturers. Using a hopper cleaning machine to clean the hopper greatly improves the efficiency and quality of hopper cleaning.

[0003] The utility model patent with application number CN201720142071.4 discloses a hopper cleaning machine, including a shell and a hot air supply device, the shell has a cavity, the cavity of the shell and the hot air supply device are connected by a pipeline, a rotating chassis is provided at the bottom of the shell, and a nozzle is fixed on the side wall of the cavity. The outer surface of the hopper is fully covered and cleaned by the rotation of the rotating chassis, but this chassis rotation structure has the following problems:

[0004] (1) The rotating chassis at the bottom of the shell occupies a large space and the cavity threshold becomes higher;

[0005] (2) The central rotation axis of the rotating chassis will affect the lowest drainage of the equipment;

[0006] (3) The rotating parts are located at the bottom of the shell. During maintenance, personnel need to climb to the bottom of the equipment, which is very inconvenient. Utility Model Content

[0007] The utility model aims to overcome the shortcomings and deficiencies of the prior art and to provide a hopper cleaning machine with a rotating nozzle structure.

[0008] The technical solution adopted by the utility model is as follows: a hopper cleaning machine with a rotating nozzle structure comprises a shell having an inner cavity,

[0009] The upper opening of the shell is connected to a hollow rotating seat, the hollow rotating seat is connected to a rotary spraying mechanism and a water inlet mechanism, and the hollow rotating seat has a first flow channel connected to the water inlet mechanism.

[0010] The rotary spraying mechanism includes a rotary driving mechanism, a transmission connecting member connected to the output end of the rotary driving mechanism, and a nozzle rack located in the inner cavity of the shell. A water pipe connected to the inner cavity of the nozzle rack is connected between the nozzle rack and the transmission connecting member. The transmission connecting member has a second flow channel connecting the first flow channel and the water pipe. The nozzle rack includes a first rack portion extending axially along the shell, and a plurality of first side spray nozzles connected to the inner cavity of the nozzle rack are arranged on the first rack portion along the axial direction of the shell. The transmission connecting member is limited to a hollow rotating seat. When driven by the rotary driving mechanism, the transmission connecting member rotates relative to the hollow rotating seat and drives the nozzle rack and the first side spray nozzle to rotate around the center of the hollow rotating seat.

[0011] Preferably, the rotary drive mechanism is a rotary reducer, and the transmission connecting member includes a rotary support portion that is connected to the output end of the rotary drive mechanism, and a connecting cylinder portion whose upper end is connected to the rotary support portion and whose lower end passes through the upper opening of the shell and enters the inner cavity of the shell; a first bearing is connected between the rotary support portion and the hollow rotary seat, and is limited in the hollow rotary seat by the first bearing.

[0012] Preferably, the slewing bearing portion comprises a first supporting ring portion and a second supporting ring portion connected to the outer periphery of the first supporting ring portion, and a first abutting step is formed between the bottom of the second supporting ring portion and the outer peripheral wall of the first supporting ring portion to limit the upward movement of the first bearing and limit the radial movement of the first bearing toward the center direction of the slewing bearing portion.

[0013] The inner cavity of the hollow swivel seat includes, from top to bottom, a first inner cavity, a second inner cavity, and a third inner cavity which are arranged concentrically. The diameter of the second inner cavity is larger than that of the third inner cavity and a second abutment platform is formed at the connection between the second inner cavity and the third inner cavity. A second abutment step is formed between the second abutment platform and the third inner cavity to limit the downward movement of the first bearing and to limit the radial movement of the first bearing away from the center of the swivel support part.

[0014] Preferably, the diameter of the first inner cavity is larger than that of the second inner cavity and a first abutment platform is formed at the junction between the first inner cavity and the second inner cavity.

[0015] A second bearing radially limited between the outer periphery of the second supporting ring portion and the inner periphery of the first inner cavity is connected, and the lower end of the second bearing is limited on the first abutting platform.

[0016] Preferably, the connecting cylinder has a connecting ring portion along the circumference near the water outlet end of the water inlet mechanism, the second flow channel is an annular flow channel located in the inner cavity of the connecting ring portion, and the first flow channel transversely penetrates the inner and outer walls of the hollow swivel seat to connect the annular flow channel with the water inlet mechanism.

[0017] A first sealing ring located above the first and second flow channels and a second sealing ring located below the first and second flow channels are arranged between the inner wall of the hollow swivel seat and the connecting ring portion.

[0018] Preferably, the nozzle rack also includes a second rack portion extending axially along the shell and a third rack portion arranged transversely and connecting the first rack portion and the second rack portion, and the second rack portion is provided with a plurality of second side spray nozzles connected to the inner cavity of the nozzle rack along the axial direction of the shell.

[0019] Preferably, the second frame portion and the first frame portion are arranged corresponding to the center of the inner cavity of the shell, and a plurality of second side spray nozzles and a plurality of first side spray nozzles are staggered in the axial direction.

[0020] Preferably, the third frame portion is provided with a top spray nozzle connected to the inner cavity of the nozzle frame.

[0021] Preferably, the hollow rotating seat is connected to a connecting pipe with a drying air inlet, a lifting cylinder is arranged in the connecting pipe, the cylinder body of the lifting cylinder is fixed in the connecting pipe, an internal washing ball is lifted and lowered in the inner cavity of the shell, and the telescopic rod of the lifting cylinder is linked to the connecting end of the internal washing ball.

[0022] Preferably, the upper opening of the shell is provided with a connecting upper seat which is cooperatively connected with the bottom of the hollow rotating seat, and the connecting upper seat and the hollow rotating seat are detachably connected via a threaded member.

[0023] The beneficial effects of the utility model are as follows: cleaning water passes through the first flow channel in the hollow rotating seat and the second flow channel in the transmission connecting member through the water inlet mechanism in sequence, and then enters the inner cavity of the nozzle rack through the water pipe to communicate with each nozzle, and the transmission connecting member is driven to rotate by the rotating drive mechanism, and the transmission connecting member will drive the nozzle rack to rotate, thereby achieving full coverage of the outer surface of the hopper located in the shell. The rotating nozzle rack structure of the present application solves the defect of the high cavity threshold brought about by the traditional chassis rotating structure, and effectively ensures the lowest drainage level of the equipment. At the same time, the rotating component is located at the top of the shell, which is convenient for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0025] Figure 1 This is a front view structural diagram of an embodiment of the utility model without the connecting pipe and related structures;

[0026] Figure 2 for Figure 1 A magnified view of the structure at center;

[0027] Figure 3 for Figure 1 A magnified view of the structure at B in the middle;

[0028] Figure 4 This is a front view of the structure of an embodiment of the utility model;

[0029] Figure 5 It is a top view of an embodiment of the utility model;

[0030] In the figure, 1, shell; 2, hollow swivel seat; 3, rotary drive mechanism; 4, nozzle frame; 5, transmission connector; 6, first bearing; 7, second bearing; 8, water pipe; 11, connecting upper seat; 21, first inner cavity; 22, second inner cavity; 23, third inner cavity; 24, first abutment platform; 25, second abutment platform; 26, second abutment step; 41, first frame; 42, second frame; 43, third frame; 51, swivel support; 52, connecting cylinder; 91, connecting pipe; 92, internal washing cleaning ball; 93, lifting cylinder; 101, first sealing ring; 102, second sealing ring; 411, first side spray nozzle; 421, second side spray nozzle; 431, top spray nozzle; 511, first supporting ring; 512, second supporting ring; 513, first abutment step; 521, connecting ring. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0032] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0033] The directions and positions mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., are only for reference to the directions or positions of the drawings. Therefore, the directions and positions used are used to explain and understand the present invention, but not to limit the scope of protection of the present invention.

[0034] like Figures 1 to 5 As shown in the figure, a hopper cleaning machine with a rotating nozzle structure in an embodiment of the utility model comprises a housing 1, the housing 1 has an inner cavity,

[0035] The upper opening of the shell 1 is connected to a hollow rotary seat 2, and the hollow rotary seat 2 is connected to a rotary spraying mechanism and a water inlet mechanism. The hollow rotary seat 2 has a first flow channel connected to the water inlet mechanism.

[0036] The rotary spraying mechanism includes a rotary driving mechanism 3, a transmission connecting member 5 connected to the output end of the rotary driving mechanism 3, and a nozzle rack 4 located in the inner cavity of the shell 1. A water pipe 8 connected to the inner cavity of the nozzle rack 4 is connected between the nozzle rack 4 and the transmission connecting member 5. The transmission connecting member 5 has a second flow channel connecting the first flow channel and the water pipe 8. The nozzle rack 4 includes a first rack portion 41 extending axially along the shell 1. A plurality of first side spray nozzles 411 connected to the inner cavity of the nozzle rack 4 are arranged axially along the shell 1 on the first rack portion 41. The transmission connecting member 5 is limited to the hollow rotating seat 2. Under the drive of the rotary driving mechanism 3, the transmission connecting member 5 rotates relative to the hollow rotating seat 2 and drives the nozzle rack 4 and the first side spray nozzle 411 to rotate around the center of the hollow rotating seat 2.

[0037] Through the above arrangement, the cleaning water passes through the first flow channel in the hollow rotary seat and the second flow channel in the transmission connecting member through the water inlet mechanism, and then enters the inner cavity of the nozzle frame through the water pipe and communicates with each nozzle.

[0038] The transmission connecting part is driven to rotate by the rotary drive mechanism, and the transmission connecting part drives the nozzle holder to rotate, so as to achieve full coverage of the outer surface of the hopper located in the shell by spraying. The rotating nozzle holder structure of the present application solves the defect of high cavity threshold caused by the traditional chassis rotating structure, and effectively ensures the minimum drainage level of the equipment. At the same time, the rotating part is located at the top of the shell, which is convenient for maintenance.

[0039] In this embodiment, the water inlet mechanism includes a water inlet pipe and a control valve located on the water inlet pipe for controlling the flow of fluid in the water inlet pipe.

[0040] The rotary drive mechanism 3 is a rotary reducer, and the transmission connecting member 5 includes a rotary support portion 51 that is connected to the output end of the rotary drive mechanism 3, and a connecting cylinder portion 52 whose upper end is connected to the rotary support portion 51 and whose lower end passes through the upper opening of the shell 1 and enters the inner cavity of the shell 1. A first bearing 6 is connected between the rotary support portion 51 and the hollow rotary seat 2, and is limited in the hollow rotary seat 2 by the first bearing 6.

[0041] Through this arrangement, the first bearing can effectively reduce the friction loss caused by the rotation between the slewing support and the hollow slewing seat; due to the highly integrated characteristics of the rotary reducer, it intersects with other cumbersome transmission structures, which is conducive to the flattening of the structural form of the series transmission connection parts, making the overall volume of the device smaller. The rotary reducer is a prior art, and this embodiment will not be described in detail here.

[0042] The slewing support portion 51 includes a first supporting ring portion 511 and a second supporting ring portion 512 connected to the outer periphery of the first supporting ring portion. A first abutting step 513 is formed between the bottom of the second supporting ring portion 512 and the outer peripheral wall of the first supporting ring portion 511 to limit the upward movement of the first bearing 6 and to limit the radial movement of the first bearing 6 toward the center of the slewing support portion 51.

[0043] The inner cavity of the hollow swivel seat 2 includes, from top to bottom, a first inner cavity 21, a second inner cavity 22, and a third inner cavity 23 which are arranged concentrically. The diameter of the second inner cavity 22 is larger than that of the third inner cavity 23 and a second abutment platform 25 is formed at the connection between the second inner cavity 22 and the third inner cavity 23. A second abutment step 26 is formed between the second abutment platform 25 and the third inner cavity 23 to limit the downward movement of the first bearing 6 and to limit the radial movement of the first bearing 6 away from the center of the swivel support part 51.

[0044] In this embodiment, the first bearing is specifically a thrust ball bearing, which is used to bear the axial load, further effectively reducing the friction loss caused by the rotation between the slewing support part and the hollow slewing seat, and improving the service life of this structure.

[0045] The diameter of the first inner cavity 21 is larger than that of the second inner cavity 22 and a first abutting platform 24 is formed at the junction of the first inner cavity 21 and the second inner cavity 22.

[0046] A second bearing 7 is connected between the outer periphery of the second supporting ring portion 512 and the inner periphery of the first inner cavity 21 and is radially limited therebetween. The lower end of the second bearing 7 is limited on the first abutting platform 24 .

[0047] In this embodiment, the second bearing is specifically a deep groove ball bearing, which is used to bear radial loads and also bear part of the axial load. Through its cooperation with the first bearing, it can further effectively reduce the friction loss caused by the rotation between the slewing support part and the hollow slewing seat.

[0048] The connecting tube 52 has a connecting ring 521 along the circumference near the water outlet of the water inlet mechanism. The second flow channel is an annular flow channel located in the inner cavity of the connecting ring 521. The first flow channel transversely penetrates the inner and outer walls of the hollow rotary seat 2 to connect the annular flow channel and the water inlet mechanism.

[0049] A first sealing ring 101 located above the first and second flow channels and a second sealing ring 102 located below the first and second flow channels are arranged between the inner wall of the hollow swivel seat 2 and the connecting ring portion 521 .

[0050] This arrangement can effectively ensure that cleaning water does not leak when the connecting ring rotates relative to the hollow swivel seat. The first and second sealing rings specifically use polytetrafluoroethylene sealing rings to further improve the sealing effect.

[0051] The nozzle rack 4 also includes a second rack portion 42 extending axially along the shell 1 and a third rack portion 43 arranged transversely and connecting the first rack portion 41 and the second rack portion 42. The second rack portion 42 is provided with a plurality of second side spray nozzles 421 connected to the inner cavity of the nozzle rack 4 axially along the shell 1.

[0052] Through this arrangement, the side spray nozzles on both sides can effectively improve the spraying efficiency.

[0053] The second frame portion 42 and the first frame portion 41 are arranged corresponding to the inner center of the shell 1, and a plurality of second side spray nozzles 421 and a plurality of first side spray nozzles 411 are staggered along the axial direction.

[0054] Through this setting, the spraying efficiency is further improved.

[0055] The third frame portion 43 is provided with a top spray nozzle 431 which is connected to the inner cavity of the nozzle frame 4 .

[0056] With this arrangement, the top spray nozzle sprays the hopper from above, further improving the spraying efficiency while increasing the spray coverage area, making the spray more comprehensive.

[0057] The hollow rotating seat 2 is connected to a connecting pipe 91 with a drying air inlet, and a lifting cylinder 93 is arranged in the connecting pipe 91. The cylinder body of the lifting cylinder 93 is fixed in the connecting pipe 91, and an internal washing ball 92 is lifted and lowered in the inner cavity of the shell 1. The telescopic rod of the lifting cylinder 93 is linked to the connecting end of the internal washing ball 92.

[0058] With this arrangement, the nozzle holder can rotate without affecting the rise and fall of the cleaning balls in the hopper.

[0059] The upper opening of the shell 1 is provided with a connecting upper seat 11 which is matched with the bottom of the hollow rotating seat 2, and the connecting upper seat 11 and the hollow rotating seat 2 are detachably connected by a screw member.

[0060] Through this arrangement, a detachable connection between the hollow swivel seat and the shell is achieved, which facilitates the disassembly, assembly and maintenance of the equipment.

[0061] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A hopper cleaning machine with a rotating nozzle structure, comprising a housing (1), the housing (1) having an inner cavity, characterized in that: The upper opening of the shell (1) is connected to a hollow rotating seat (2), the hollow rotating seat (2) is connected to a rotary spraying mechanism and a water inlet mechanism, and the hollow rotating seat (2) has a first flow channel connected to the water inlet mechanism. The rotary spray washing mechanism comprises a rotary drive mechanism (3), a transmission connection member (5) connected to the output end of the rotary drive mechanism (3), and a nozzle holder (4) located in the inner cavity of the shell (1); a water pipe (8) connected to the inner cavity of the nozzle holder (4) is connected between the nozzle holder (4) and the transmission connection member (5); the transmission connection member (5) has a second flow channel connected to the first flow channel and the water pipe (8); the nozzle holder (4) comprises a first frame portion (41) extending along the axial direction of the shell (1); a plurality of first side spray nozzles (411) connected to the inner cavity of the nozzle holder (4) are arranged on the first frame portion (41) along the axial direction of the shell (1); the transmission connection member (5) is limitedly located on the hollow rotary seat (2); the transmission connection member (5) is driven by the rotary drive mechanism (3) to rotate relative to the hollow rotary seat (2) and drive the nozzle holder (4) and the first side spray nozzles (411) to rotate around the center of the hollow rotary seat (2).

2. A hopper cleaning machine with a rotating nozzle structure according to claim 1, characterized in that: The rotary drive mechanism (3) is a rotary reducer, and the transmission connection member (5) comprises a rotary support portion (51) connected to the output end of the rotary drive mechanism (3), and a connecting tube portion (52) whose upper end is connected to the rotary support portion (51) and whose lower end passes through the upper opening of the shell (1) and enters the inner cavity of the shell (1). A first bearing (6) is connected between the rotary support portion (51) and the hollow rotary seat (2), and is limited in the hollow rotary seat (2) by the first bearing (6).

3. The hopper cleaning machine with a rotating nozzle structure according to claim 2, characterized in that: The slewing support portion (51) comprises a first supporting ring portion (511), and a second supporting ring portion (512) connected to the outer periphery of the first supporting ring portion, wherein a first abutting step (513) is formed between the bottom of the second supporting ring portion (512) and the outer peripheral wall of the first supporting ring portion (511) for limiting the upward movement of the first bearing (6) and limiting the radial movement of the first bearing (6) toward the center direction of the slewing support portion (51). The inner cavity of the hollow slewing seat (2) comprises, from top to bottom, a first inner cavity (21), a second inner cavity (22), and a third inner cavity (23) which are arranged concentrically. The diameter of the second inner cavity (22) is larger than that of the third inner cavity (23) and a second abutment platform (25) is formed at the junction between the second inner cavity (22) and the third inner cavity (23). A second abutment step (26) is formed between the second abutment platform (25) and the third inner cavity (23) for limiting the downward movement of the first bearing (6) and limiting the radial movement of the first bearing (6) in a direction away from the center of the slewing support portion (51).

4. The hopper cleaning machine with a rotating nozzle structure according to claim 3, characterized in that: The diameter of the first inner cavity (21) is larger than that of the second inner cavity (22), and a first abutment platform (24) is formed at the junction between the first inner cavity (21) and the second inner cavity (22). A second bearing (7) is connected between the outer periphery of the second supporting ring portion (512) and the inner periphery of the first inner cavity (21) and is radially limited therebetween, and the lower end of the second bearing (7) is limited on the first abutment platform (24).

5. The hopper cleaning machine with a rotating nozzle structure according to claim 2, characterized in that: The connecting cylinder (52) has a connecting ring (521) along the circumference at a position close to the water outlet end of the water inlet mechanism; the second flow channel is an annular flow channel located in the inner cavity of the connecting ring (521); the first flow channel transversely penetrates the inner and outer walls of the hollow swivel seat (2) to connect the annular flow channel with the water inlet mechanism. A first sealing ring (101) located above the first and second flow channels and a second sealing ring (102) located below the first and second flow channels are provided between the inner wall of the hollow swivel seat (2) and the connecting ring portion (521).

6. The hopper cleaning machine with a rotating nozzle structure according to claim 1, characterized in that: The nozzle rack (4) further comprises a second rack portion (42) extending axially along the shell (1) and a third rack portion (43) arranged transversely and connecting the first rack portion (41) and the second rack portion (42); the second rack portion (42) is provided with a plurality of second side spray nozzles (421) connected to the inner cavity of the nozzle rack (4) axially along the shell (1).

7. The hopper cleaning machine with a rotating nozzle structure according to claim 6, characterized in that: The second frame portion (42) and the first frame portion (41) are arranged correspondingly relative to the inner cavity center of the shell (1), and a plurality of second side spray nozzles (421) and a plurality of first side spray nozzles (411) are arranged alternately along the axial direction.

8. The hopper cleaning machine with a rotating nozzle structure according to claim 6, characterized in that: The third frame portion (43) is provided with a top spray nozzle (431) which is in communication with the inner cavity of the nozzle frame (4).

9. The hopper cleaning machine with a rotating nozzle structure according to claim 1, characterized in that: The hollow rotary seat (2) is connected to a connecting pipe (91) having a drying air inlet, a lifting cylinder (93) is arranged in the connecting pipe (91), a cylinder body of the lifting cylinder (93) is fixed in the connecting pipe (91), an inner cleaning ball (92) is lifted and lowered in the inner cavity of the shell (1), and a telescopic rod of the lifting cylinder (93) is linked to a connecting end of the inner cleaning ball (92).

10. The hopper cleaning machine with a rotating nozzle structure according to claim 1, characterized in that: The upper opening of the shell (1) is provided with a connecting upper seat (11) which is cooperatively connected with the bottom of the hollow rotating seat (2); the connecting upper seat (11) and the hollow rotating seat (2) are detachably connected via a threaded member.

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