Manual driving structure and bus elevator

Abstract

The utility model discloses a manual driving structure and a bus elevator, the manual driving structure is applied to a motor rotating shaft of the bus elevator, and the motor rotating shaft is provided with a linear groove axially extending along the center of the motor rotating shaft; the manual driving structure comprises a sleeve, a limiting piece and a holding piece, the limiting piece comprises two limiting parts and an inserting part, one side of each limiting part is arranged at the sleeving opening and connected to the sleeve, and the other side of each limiting part extends into the corresponding linear groove; the inserting part is inserted between the two limiting parts so as to push the two limiting parts to move to abut against the groove wall of the linear groove and the wall face of the sleeving opening, and the holding piece is used for driving the sleeve to rotate around the central axis of the motor rotating shaft so as to drive the motor rotating shaft to move around the central axis of the motor rotating shaft. According to the design, fixed connection with a motor rotating shaft is realized in an inserting manner, and the mounting efficiency is improved; the limiting piece abuts against the outer wall of the motor rotating shaft, so that the manual driving structure is fixedly connected with the motor rotating shaft, the motor rotating shaft is conveniently driven to rotate subsequently, and the cell condition stability of the aluminum electrolysis cell is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of busbar hoists, and in particular to a manual drive structure and a busbar hoist. Background Art

[0002] Aluminum electrolytic cells are the main equipment for aluminum industry production. During the operation of the electrolytic cell, the anode participates in the chemical reaction and is continuously consumed. Therefore, it is necessary to control the lifting and lowering of the anode to keep the distance between the cathode and the anode constant. Since the anode busbar needs to maintain an electrical connection with the anode in a relative position, a busbar hoist is needed to lift the anode busbar.

[0003] In the related technology, in the daily production of the electrolytic cell, the motor of the busbar hoist needs to rotate forward and reverse frequently to ensure the smooth operation of the electrolytic production. Long-term use will cause the motor coil to burn out. When the motor is damaged or fails, the anode cannot automatically adjust the voltage, which will cause voltage fluctuations, voltage swings, etc., which will seriously affect the working stability of the aluminum electrolytic cell. Utility Model Content

[0004] The embodiments of the present application provide a manual drive structure and a busbar hoist, which can solve the problem that the anode cannot automatically adjust the voltage due to the failure of the busbar hoist motor, causing voltage fluctuations and further damaging the aluminum electrolytic cell.

[0005] In the first aspect, an embodiment of the present application provides a manual drive structure; the manual drive structure is applied to the motor shaft of a busbar hoist, and the motor shaft is provided with a linear groove extending along its central axis; the manual drive structure includes a sleeve, a limit piece and a holding piece, the sleeve has a sleeve groove for accommodating the motor shaft, and a sleeve opening connected to the sleeve groove; the limit piece includes two oppositely arranged limit parts and a plug-in part, one side of the limit part is arranged at the sleeve opening and connected to the sleeve, and the other side of the limit part extends into the linear groove; the plug-in part is inserted between the two limit parts to push the two limit parts to move to abut against the groove wall of the linear groove and the wall surface of the sleeve opening; the holding piece is arranged on the side of the sleeve away from the motor shaft, and the holding piece is used to drive the sleeve to rotate around the central axis of the motor shaft to drive the motor shaft to move around its central axis.

[0006] In some embodiments, the sleeve has a mounting groove extending along a first direction near the sleeve opening, and the first direction is perpendicular to the axial direction of the motor shaft;

[0007] The limiting part includes a protrusion and a limiting body, the protrusion is movably connected to the mounting groove, and the size of the mounting groove is larger than the size of the protrusion; the limiting body is located in the mounting hole and fixedly connected to the protrusion; and,

[0008] In the first direction, the protrusion is used to limit the limiting body from being separated from the sleeve.

[0009] In some of the embodiments, the manual drive structure further includes an elastic member, which is disposed between and connected to the two limiting bodies, and the elastic member is spaced apart from the plug-in portion.

[0010] In some embodiments, the number of the elastic members is two, and in the circumferential direction of the motor shaft, one of the elastic members is arranged on one side of the plug-in portion, and the other of the plug-in portion is arranged on the other side of the plug-in portion.

[0011] In some embodiments, the plug-in portion is plugged between the limiting bodies of the two limiting portions, and the plug-in portion is in contact with the bottom wall of the linear groove.

[0012] In some embodiments, one of the surfaces of the limiting body and the plug-in portion facing each other is provided with an inserting groove, and the other is provided with an inserting strip, and the inserting strip is inserted into the inserting groove.

[0013] In some embodiments, the holding member includes a transmission rod and a driving turntable, the transmission rod is arranged on a side of the sleeve away from the motor shaft, and the transmission rod is extended along a second direction parallel to the axial direction of the motor shaft; the driving turntable is connected to the transmission rod, and the driving turntable is used to drive the transmission rod to rotate, thereby driving the motor shaft connected to the sleeve to move around its central axis.

[0014] In some embodiments, the transmission rod is a telescopic structure, and the height of the driving turntable is adjusted in a first direction parallel to the axial direction of the motor shaft.

[0015] In a second aspect, an embodiment of the present application provides a busbar hoist, which includes a manual drive structure.

[0016] In some embodiments, the busbar hoist also includes a motor and a manual drive structure, the motor includes a motor shaft, the motor shaft is provided with a linear groove extending along its axial direction, the sleeve of the manual drive structure is sleeved on the end of the motor shaft, and the limit member is inserted into the linear groove.

[0017] Based on the manual drive structure in the embodiment of the present application, on the one hand, the fixation with the motor shaft is achieved by plugging in, which can improve the installation efficiency; on the other hand, the limit member abuts against the outer wall of the motor shaft, so that the manual drive structure as a whole is fixedly connected to the motor shaft, which is convenient for subsequent driving of the motor shaft to rotate, and then lifting the anode to ensure the stability of the cell condition of the aluminum electrolytic cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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 or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of a manual drive structure in an embodiment of the present application;

[0020] Figure 2 This is an exploded schematic diagram of a manual drive structure installed on a motor shaft in one embodiment of the present application;

[0021] Figure 3 This is a front view structural diagram of a manual drive structure installed on a motor shaft in one embodiment of the present application;

[0022] Figure 4 This is a schematic cross-sectional structure diagram of an embodiment of the present application without inserting the plug-in portion;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of an insertion plug-in portion in an embodiment of the present application.

[0024] Reference numerals:

[0025] 1. Manual drive structure;

[0026] 10, sleeve; 10a, sleeve groove; 10b, sleeve opening; 10c, installation groove;

[0027] 20. Limiting member; 21. Limiting portion; 211. Protrusion; 212. Limiting body; 22. Connecting portion;

[0028] 30. Elastic parts;

[0029] 40. gripping member; 41. transmission rod; 42. driving turntable;

[0030] 60. motor; 61. motor shaft; 61a. linear groove;

[0031] A. The first direction. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0033] Please refer to Figure 1 and Figure 2The first aspect of the present application proposes a manual drive structure 1, which can be used in conjunction with the motor shaft 61 of the busbar hoist. The motor shaft 61 is manually driven to rotate to operate the motor 60 of the busbar hoist to ensure the normal operation of the busbar hoist.

[0034] The manual drive structure 1 acts on the motor shaft 61 of the busbar hoist. Figure 2 The motor shaft 61 shown is provided with a linear groove 61a extending along its central axis; the manual drive structure 1 includes a sleeve 10, a limiter 20 and a holding member 40, the sleeve 10 has a sleeve groove 10a for accommodating the motor shaft 61, and a sleeve opening 10b connected to the sleeve groove 10a; the limiter 20 includes two relatively arranged limit parts 21 and an inserting part 22, a part of the limit part 21 is arranged in the sleeve opening 10b and connected to the sleeve 10, and the other part of the limit part 21 extends into the linear groove 61a; the inserting part 22 is inserted between the two limit parts 21 to push the two limit parts 21 to move to abut against the groove wall of the linear groove 61a and the wall surface of the sleeve opening 10b; the holding member 40 is arranged on the side of the sleeve 10 away from the motor shaft 61, and the holding member 40 is used to drive the sleeve 10 to rotate around the central axis of the motor shaft 61 to drive the motor shaft 61 to move around its central axis.

[0035] The following combination Figures 1 to 4 The specific structure of the manual drive structure 1 is introduced in detail.

[0036] At present, large-scale busbar lifting devices mostly use screw cranes and ball screw triangular plate lifting devices. In the daily production of electrolytic cells, when the motor 60 fails, the height of the anode busbar is adjusted by manually driving the busbar hoist to adjust the height of the anode, thereby preventing the anode from participating in the electrolysis reaction and affecting the stability of the cell condition.

[0037] The motor shaft 61 is provided with a linear groove 61a extending along its axial direction. The linear groove 61a is a groove formed by the motor shaft 61 being recessed. Figure 1-Figure 2 As shown, the manual drive structure 1 includes a sleeve 10, a limit member 20 and a holding member 40. During assembly, the motor shaft 61 is plugged into the sleeve groove 10a of the manual drive structure 1, and the limit member is plugged into the linear groove 61a to prevent the manual drive structure 1 from rotating relative to the motor shaft 61.

[0038] like Figure 1 As shown, the sleeve 10 is a structural component connected to the outer wall of the motor shaft 61 in the manual drive structure 1 . The sleeve 10 is sleeved on the motor shaft 61 and fits with the outer wall of the motor shaft 61 .

[0039] The limit member 20 is used to be clamped in the above-mentioned linear groove 61a, so as to realize indirect connection between the sleeve 10 and the motor shaft 61. The limit member 20 includes two relatively arranged limit parts 21 and an inserting part 22 inserted between the two limit parts. The inserting part 22 pushes the two limit parts 21 to move to abut against the groove wall of the linear groove 61a and the wall surface of the sleeve opening 10b, so that the limit member 20 as a whole can be better installed in the linear groove 61a, which is convenient for the subsequent rotation operation of the motor shaft 61.

[0040] The plug-in portion 22 can be at least partially inserted between the two limiting portions 21, that is, the plug-in portion 30 can partially extend to the external area of ​​the socket opening 10b, or it can be fully inserted into the internal area where the socket opening 10b is located. There is no limitation on this here, and designers can reasonably design it according to actual needs.

[0041] The handle 40 serves as a power source in the manual drive structure 1. When external force acts on the handle 40, the handle 40 drives the sleeve 10 to move to drive the motor shaft 61 to perform circular motion around its central axis. The specific form of the handle 40 is introduced below.

[0042] Based on the manual drive structure 1 in the embodiment of the present application, on the one hand, the fixation with the motor shaft 61 is achieved by plugging in, which can improve the installation efficiency; on the other hand, the limit member 20 abuts against the outer wall of the motor shaft 61, so that the manual drive structure 1 as a whole is fixedly connected to the motor shaft 61, which is convenient for subsequent driving of the motor shaft 61 to rotate, and then lifting the anode to ensure the stability of the cell condition of the aluminum electrolytic cell.

[0043] like Figure 4-Figure 5As shown, in some embodiments, the side wall surface of the sleeve 10 that defines the socket opening 10b is provided with a mounting groove 10c extending circumferentially around the motor shaft 61; the limiting portion 21 includes a protrusion 211 and a limiting body 212, a portion of the limiting body 212 is arranged in the socket opening 10a, and the other portion is arranged in the linear groove 61a, the plug-in portion 22 is inserted between the limiting bodies 211 of the two limiting portions 21, the protrusion 211 of each limiting portion 21 is connected to the side of the limiting body 212 away from the other limiting portion 21, and the protrusion 211 is movably arranged in the mounting groove 10c, so that the two limiting portions 21 can move away from or approach each other in the circumferential direction of the motor shaft 61. Among them, in the circumferential direction of the motor shaft 61, the size of the installation groove 10c is larger than the size of the protrusion 211, and the limiting body 212 is fixedly connected to the protrusion 211, so that the limiting body 212 and the protrusion 211 can move in the circumferential direction of the motor shaft 61, so as to adjust the positions of the two limiting bodies 212, so that the sleeve 10 can be conveniently sleeved on the motor shaft 61. The sleeve opening 10b is opened on the outer peripheral wall surface of the sleeve 10, and optionally, the two limiting bodies 212 can extend from the side of the sleeve opening 10b away from the motor shaft 61 to the sleeve opening 10b and the linear groove 61a in sequence.

[0044] When the plug-in portion 30 is inserted between the two limiting bodies 212, the two limiting bodies 212 move to abut against the groove wall surface of the linear groove 61a and the side wall surface of the socket opening 10b, thereby increasing the contact area among the two limiting bodies 212, the groove wall surface of the linear groove 61a and the side wall surface of the socket opening 10b, preventing the sleeve 10 from rotating relative to the motor shaft 61, and increasing the connection structure strength among the sleeve 10, the motor shaft 61 and the limiting portion 21, thereby being able to drive the motor shaft 61 to rotate stably.

[0045] It can be understood that the wall surface of the sleeve 10 defining the sleeve groove 10a is fitted with the outer surface of the motor shaft 61, and in the circumferential direction of the motor shaft 61, the limiting portion 21 and the side wall surface of the sleeve 10 defining the sleeve opening 10b, and the limiting portion 21 and the groove wall surface of the linear groove 61a defined by the motor shaft 61 are all fitted, so as to prevent the sleeve 10 from rotating relative to the motor shaft 61 in the circumferential direction. However, the sleeve 10, the limiting portion 21 and the motor shaft 61 are too closely fitted, making it difficult for the motor shaft 61 to be smoothly inserted into the sleeve groove 10a of the sleeve 10, and the limiting portion 21 is also difficult to be smoothly inserted into the linear groove 61a. Based on this, as Figure 4As shown, in some embodiments, the manual drive structure further includes an elastic member 30, and the two ends of the elastic member 30 are respectively connected to the two limiting bodies 212. The elastic member 30 is spaced apart from the plug-in portion 22, that is, the elastic member 30 does not affect the insertion of the plug-in portion 22. When the plug-in portion 22 is not inserted between the two limiting bodies 212, the two limiting bodies 212 are pulled closer to each other due to the force of the elastic member 30, so that the limiting bodies 212 are separated from the groove wall surface of the linear groove 61a, and there is a gap, so that when the motor shaft 61 is inserted into the sleeve groove 10a of the sleeve 10, the airflow is exchanged, so that the motor shaft 61 can be smoothly inserted into the sleeve groove 10a of the sleeve 10. When the two limiting bodies 212 are inserted into the linear groove 61a, the plug-in portion 22 is inserted between the two limiting bodies 212, and the two limiting bodies 212 are pushed to move back to back and abut against the groove wall surface of the linear groove 61a and the side wall surface of the sleeve opening 10b. When the sleeve 10 needs to be removed from the motor shaft 61, the limiting body 212 is taken out, and the two limiting bodies 212 are moved closer to each other under the tensile force of the elastic member 30 to restore the elastic deformation, and the limiting body 212 is separated from the groove wall surface of the linear groove 61a, so that the sleeve 10 can be removed smoothly from the motor shaft 61. Optionally, the elastic member 30 is a spring, foam or elastic silicone.

[0046] In the axial direction of the motor shaft 61, the elastic member 30 is arranged outside the plug-in portion 22, and the plug-in portion 22 is plugged between the two limiting bodies 212 and fits against the bottom wall of the linear groove 61a of the motor shaft 61. Optionally, there are two elastic members 30, and in the axial direction of the motor shaft 61, one elastic member 30 is arranged on one side of the plug-in portion 22, and the other elastic member 30 is arranged on the other side of the plug-in portion 22, so that the two limiting bodies 212 can smoothly move away from or close to each other.

[0047] Alternatively, if Figure 5 As shown, in the radial direction of the motor shaft 61, the spacing between the two limiting bodies 212 gradually decreases in the direction away from the motor shaft 61, and correspondingly, in the direction perpendicular to the axial direction of the motor shaft 61, the cross-section of the plug-in portion 22 is trapezoidal, so that the plug-in portion 22 can be smoothly inserted between the two limiting bodies 212 and abut against the wall surfaces of the two limiting bodies 212, and the wall surface of the plug-in portion 22 is in contact with the wall surface of the limiting body 212, thereby improving the matching stability between the plug-in portion 22 and the limiting body 212 and increasing the structural strength.

[0048] The surfaces of the limiting body 212 and the plug-in part 22 are fitted together. In order to make the connection between the plug-in part 22 and the limiting body 212 tighter, one of the surfaces of the limiting body 212 and the plug-in part 22 facing each other is provided with a plug-in groove, and the other is provided with a plug-in strip. The plug-in strip is plugged into the plug-in groove, which facilitates the rapid alignment of the limiting body 212 and the plug-in part 22 and improves the abutment stability. Optionally, the contact surface of the limiting body 212 used to abut against the plug-in part 22 is designed with multiple lines, or the wall surface of the plug-in part 22 has multiple stripes, that is, the surface of the plug-in part 22 and the two limiting bodies 212 is designed as a rough surface. In this design, the roughness of the contact surface of the limiting body 212 and the plug-in part 22 is increased, so that the friction between the limiting body 212 and the plug-in part 22 is increased, and the connection stability between the plug-in part 22 and the limiting body 212, and between the sleeve 10 and the motor shaft 61 is improved.

[0049] Considering that the holding member 40 can realize the rotation of the drive sleeve 10, and then drive the motor shaft 61 to rotate, in order to make the holding member 40 have corresponding functions, such as Figure 3 As shown, it is designed that in some embodiments, the holding member 40 includes a transmission rod 41 and a driving turntable 42, the transmission rod 41 is arranged on the side of the sleeve 10 away from the motor shaft 61, and the driving turntable 42 is connected to the transmission rod 41 and is used to drive the transmission rod 41 to rotate around the central axis of the motor shaft 61, thereby driving the motor shaft 61 connected to the sleeve 10 to move around its central axis. With such a design, the driving turntable 42 is fixedly connected to the transmission rod 41, and the transmission rod 41 is fixedly connected to the sleeve 10. When the motor 60 fails, the operator only needs to hold the driving turntable 42 and make a circular motion along the center axis of the motor shaft 61 to realize the rotation of the motor shaft 61.

[0050] In some other embodiments, the handle 40 can also adopt a hand-cranked drive structure (not shown in the figure), which includes a rocker (not shown in the figure) and a connecting rod (not shown in the figure). The connecting rod is used to be fixedly connected to the sleeve 10, and the rocker is connected to the connecting rod. When the motor 60 fails, the operator only needs to hold the rocker and make circular motion along the centerline axis of the motor shaft 61 to realize the rotation of the motor shaft 61.

[0051] Considering the height difference of each operator, the operator has a high labor intensity when manually operating the driving turntable 42, which leads to low work efficiency. Optionally, the transmission rod 41 is a telescopic structure, which is used to adjust the height of the driving turntable 42 along the first direction A. The specific structure of the transmission rod 41 is not limited here, and a telescopic structure that meets actual needs in the art can be used. With this design, the height of the driving turntable 42 in the first direction A can be adjusted to meet the height requirements of the operator, so the labor intensity of the operator can be reduced.

[0052] The second aspect of the present application proposes a busbar hoist, including a motor shaft 61 and a manual drive structure 1. In this design, the busbar hoist with the manual drive structure 1 has the characteristics of easy disassembly and installation, and can drive the motor shaft 61 to rotate to make the busbar hoist hoist lift and adjust to ensure the stability of the anode voltage of the aluminum electrolytic cell.

[0053] In some embodiments, the busbar hoist also includes a motor 60 and a reducer (not shown in the figure), the motor shaft 61 is fixedly connected to the manual drive structure 1, and the output shaft of the motor 60 is connected to the reducer gear, so that the motor 60 and the reducer work synchronously. In this design, the manual drive structure 1 drives the motor shaft 61 to rotate, so as to drive the reducer to lift the anode busbar, thereby raising the height of the anode to avoid voltage fluctuations, voltage swings, etc.

[0054] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0055] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A manual drive structure, characterized in that: The motor shaft used for a busbar hoist is provided with a linear groove extending along its axial direction; comprising: A sleeve having a sleeve groove for accommodating the motor shaft and a sleeve opening communicated with the sleeve groove; A limiting member, comprising two limiting parts and an inserting part arranged opposite to each other, wherein a part of the limiting part is arranged at the sleeve opening and connected to the sleeve, and another part of the limiting part extends into the linear groove; the inserting part is inserted between the two limiting parts to push the two limiting parts to move to abut against the groove wall surface of the linear groove and the wall surface of the sleeve opening; and The holding member is arranged on a side of the sleeve away from the motor shaft, and the holding member is used to drive the sleeve to rotate around the central axis of the motor shaft to drive the motor shaft to move around its central axis.

2. The manual drive structure according to claim 1, characterized in that: The wall surface of the sleeve defining the sleeve opening is provided with a mounting groove; The limiting portion includes a protrusion and a limiting body, a part of the limiting body is arranged in the sleeve opening, and the other part is arranged in the linear groove, the plug-in portion is inserted between the limiting bodies of the two limiting portions, the protrusion of each limiting portion is connected to the side of the limiting body away from the other limiting portion, and the protrusion is movably arranged in the installation groove, so that the two limiting portions can move away from or approach each other in the circumferential direction of the motor shaft.

3. The manual drive structure according to claim 2, characterized in that: The manual drive structure further comprises an elastic member, which is arranged between the two limiting bodies and connected to the two limiting bodies, and the elastic member is spaced apart from the plug-in portion.

4. The manual drive structure according to claim 3, characterized in that: The number of the elastic members is two. In the circumferential direction of the motor shaft, one of the elastic members is arranged on one side of the plug-in portion, and the other of the plug-in portion is arranged on the other side of the plug-in portion.

5. The manual drive structure according to claim 2, characterized in that: The inserting portion is inserted between the limiting bodies of the two limiting portions, and the inserting portion is in contact with the bottom wall of the linear groove.

6. The manual drive structure according to claim 2, characterized in that: One of the surfaces of the limiting body and the plug-in portion facing each other is provided with an inserting groove, and the other is provided with an inserting strip, and the inserting strip is inserted into the inserting groove.

7. The manual drive structure according to claim 2, characterized in that: In the radial direction of the motor shaft, along the direction away from the motor shaft, the distance between the surfaces of the two limiting bodies facing each other gradually increases; in the axial direction perpendicular to the motor shaft, the cross-section of the plug-in part is trapezoidal, and the surfaces of the limiting body and the plug-in part are in contact with each other.

8. The manual drive structure according to claim 1, characterized in that: The holding member comprises: A transmission rod is arranged on a side of the sleeve away from the motor shaft, and the transmission rod extends in an axial direction parallel to the motor shaft; The driving turntable is connected to the transmission rod, and when the driving turntable is used to drive the transmission rod to rotate, it drives the motor shaft connected to the sleeve to move around its central axis.

9. The manual drive structure according to claim 8, characterized in that: The transmission rod is a telescopic structure, and is used to adjust the height of the driving turntable along a first direction parallel to the axial direction of the motor shaft.

10. A busbar hoist, characterized in that: include: A motor, including a motor shaft; According to the manual drive structure as described in any one of claims 1-9, the motor shaft is provided with a linear groove extending along its axial direction, the sleeve of the manual drive structure is sleeved on the end of the motor shaft, and the limit member is inserted into the linear groove.

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