crane

Abstract

The utility model relates to air conditioner technical field provides a kind of crane, including volute, cross flow fan, motor mounting seat and motor, cross flow fan is set to the inside of volute;Motor mounting seat includes base and gland, base is fixedly arranged at one end of volute, gland is detachably connected with base;Motor is set between gland and base, the shell of motor is detachably connected with base, the output shaft of motor is detachably connected with cross flow fan;The one end of base away from volute is provided with first avoiding gap, and first avoiding gap is suitable for motor along the axis direction of cross flow fan to enter and exit base.Such setting, when disassembling and assembling motor, cross flow fan does not need to be disassembled and assembled, the quality and volume of the disassembled and assembled parts are relatively smaller, greatly reduce disassembling and assembling difficulty, improve operation convenience, solve the problem that motor is inconvenient to disassemble and assemble in crane in relevant technology.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner technology, and in particular to a pedestal crane. Background Technology

[0002] The ceiling-mounted air conditioner is a core component of the air conditioning system. It draws in outside air through the air inlet using a built-in fan, pressurizes and accelerates it, and then exchanges heat through a heat exchanger. Finally, it delivers the regulated air to the target space through the air outlet to achieve the functions of cooling, heating or ventilation, and maintain the temperature, humidity and air quality of the target space.

[0003] In related technologies, the fans of the suspended ceiling fan are centrifugal fans, and the output shaft of the motor is connected to the centrifugal fan to drive its rotation. The number of centrifugal fans is determined based on the cooling capacity requirements, and the motor's output shaft is connected to each fan simultaneously. When the motor needs to be removed from the suspended ceiling fan's casing, it must be removed along with each centrifugal fan, and then the motor is removed from the fans. Conversely, when the motor needs to be installed in the suspended ceiling fan's casing, it must be connected to each centrifugal fan and the entire unit installed into the casing. The suspended ceiling fan installation involves a heavy motor, and the motor and centrifugal fans are also large, making disassembly and assembly difficult, inconvenient, and time-consuming due to the numerous parts involved.

[0004] Therefore, how to solve the problem of inconvenient disassembly and assembly of the motor in the related technology of the pedestal crane has become an important technical problem to be solved by those skilled in the art. Utility Model Content

[0005] This utility model provides a seated crane to solve the defect of seated cranes in related technologies where the motor is inconvenient to disassemble and assemble.

[0006] This utility model provides a seated crane, comprising: Snail shell; A cross-flow fan is disposed inside the volute. A motor mounting bracket includes a base and a cover, wherein the base is fixedly disposed at one end of the volute, and the cover is detachably connected to the base; A motor is disposed between the pressure cover and the base, the housing of the motor is detachably connected to the base, and the output shaft of the motor is detachably connected to the cross-flow fan; The base has a first clearance notch at the end away from the volute, and the first clearance notch is adapted to allow the motor to enter and exit the base along the axial direction of the cross-flow fan.

[0007] With this setup, when the motor needs to be disassembled, the gland can be removed from the base, the motor housing can be disconnected from the base, and the motor's output shaft can be disconnected from the cross-flow fan. Applying a force to the motor in a direction away from the cross-flow fan will move the motor relative to the base through the first clearance notch. When the motor's output shaft is completely outside the cross-flow fan, applying a force to the motor in a radial direction away from the base will remove the motor from the motor mounting bracket, thus completing the motor disassembly. When the motor needs to be installed, align the motor's output shaft axis with the cross-flow fan's output shaft axis, apply a force to the motor in a direction close to the cross-flow fan, and bring the motor closer to the fan so that the motor's output shaft extends into the cross-flow fan's bushing. After the motor is installed, connect the motor's output shaft to the cross-flow fan, connect the motor housing to the base, and then connect the gland to the base, thus completing the motor installation. With this setup, the cross-flow fan does not need to be disassembled when the motor is installed or removed. The mass and size of the components to be disassembled and removed are relatively small, which greatly reduces the difficulty of disassembly and assembly, improves the convenience of operation, and solves the problem of inconvenient disassembly and assembly of the motor in the related technology of the pedestal crane.

[0008] According to the present invention, a pedestal crane also includes: The bottom shell has an open end. The volute and the cross-flow fan are both located inside the bottom shell. The side plate of the bottom shell has a second clearance notch. The second clearance notch is adapted to allow the base and the pressure cap to pass through the side plate of the bottom shell so that the base and the pressure cap are partially located inside the bottom shell. The second clearance notch passes through the side plate of the bottom shell at a position corresponding to the open end of the bottom shell. The base is connected to the side plate of the bottom shell. A cover plate, which is detachably connected to the open end of the bottom shell.

[0009] With this configuration, when the motor moves in and out of the base along the axis of the cross-flow fan, the end of the motor away from the cross-flow fan is located outside the bottom shell. The position of the side plate of the bottom shell no longer affects the movement space of the motor along the axis of the cross-flow fan. This helps to reduce the size of the bottom shell along the axis of the cross-flow fan, and also helps to reduce the overall size and volume of the pedestal crane.

[0010] According to the present invention, a pedestal crane also includes: A side cover is detachably disposed at one end of the bottom shell and the cover plate corresponding to the base, and the side cover is adapted to cover the motor mounting base and the second clearance notch.

[0011] This design allows the side cover to conceal the motor mounting bracket and the second clearance notch, ensuring effective protection for the motor and improving the aesthetics of the crane.

[0012] According to the present invention, a pedestal crane is provided in which the side cover is snapped into the bottom shell; The bottom shell has a third connecting hole at its open end, the axis of which is parallel to the open direction of the bottom shell. The side cover has a fourth connecting hole at the position corresponding to the open end of the bottom shell. The side cover is connected to the bottom shell by a second fastener.

[0013] With this configuration, when the bottom shell and cover plate are installed on the side cover, the fourth connecting hole corresponds to the third connecting hole. The second fastener can pass through both the third connecting hole of the bottom shell and the fourth connecting hole of the side cover, thereby fixing the side cover and the bottom shell together.

[0014] According to the present invention, a pedestal crane is provided, the side cover comprising: Side cover body; A connecting part is fixedly disposed on the side cover body. The connecting part corresponds to the open end of the bottom shell. The fourth connecting hole is disposed on the connecting part. Along the open direction of the bottom shell, the projection area of ​​the fourth connecting hole is located outside the projection area of ​​the side cover body.

[0015] With this configuration, the end of the second fastener can be detached while the crane is in the hoisting state, and the second fastener will not be obstructed by the side cover. The second fastener can be installed or removed directly from below the crane, making operation convenient.

[0016] According to the present invention, a pedestal crane also includes: A reinforcing member is provided at the second clearance notch. The reinforcing member is located on the side of the cover away from the base, and both ends of the reinforcing member are detachably connected to the side plate of the bottom shell.

[0017] With this configuration, the reinforcing member can close the open end of the bottom shell corresponding to the second clearance notch, increasing the structural rigidity and strength of the side plates of the bottom shell and improving the stability of the bottom shell.

[0018] According to the present invention, a seated crane is provided in which the side plate of the bottom shell is provided with a first connecting hole, the axis of the first connecting hole is parallel to the opening direction of the bottom shell, the two ends of the reinforcing member are provided with second connecting holes, and the reinforcing member is connected to the side plate of the bottom shell by a first fastener. The side plate of the bottom shell is provided with a first positioning groove, and both ends of the reinforcing member are adapted to extend into the first positioning groove.

[0019] With this configuration, when the crane is in the hoisting state, the open end of the bottom shell faces downwards, and the end of the first fastener faces downwards. The cover plate and the first fastener can be easily installed and removed from below the crane, facilitating operation. When both ends of the reinforcing member are located within the first positioning groove, the second connecting hole on the reinforcing member aligns precisely with the first connecting hole on the side plate of the bottom shell, allowing for quick determination of the reinforcing member's position and facilitating the installation of the first fastener.

[0020] According to the present invention, in a pedestal crane, the side of the reinforcing member facing the pressure cover is adapted to the shape of the pressure cover; The pressure cap is provided with a second positioning groove on the side near the reinforcing member. The second positioning groove extends circumferentially along the pressure cap and is adapted for the edge of the reinforcing member to extend into.

[0021] With this configuration, the reinforcement can be further positioned via the second positioning groove, and the reinforcement can further restrict the position of the pressure cap, thereby further ensuring the stability of the pressure cap and the motor.

[0022] According to the present invention, a gantry crane is provided, the cover plate comprising: The cover, along the opening direction of the bottom shell, has a projection area located outside the projection area of ​​the air inlet of the volute, and the cover is detachably connected to the bottom shell; An air intake grille is provided along the open direction of the bottom shell. The projection area of ​​the air intake of the volute is located inside the projection area of ​​the air intake grille. The end of the air intake grille away from the cover is rotatably connected to the bottom shell, and the end of the air intake grille near the cover is snapped into the cover.

[0023] With this configuration, only the air inlet grille needs to be removed when disassembling and assembling the volute, cross-flow fan, and motor. The cover can be removed when disassembling and assembling other components besides the volute, cross-flow fan, and motor. When removing and assembling the air inlet grille, only the end of the grille closest to the cover needs to be removed. Once this end is disconnected from the cover, the grille rotates outwards from the bottom shell. When the crane is in the hoisting position, the air inlet grille hangs downwards.

[0024] According to the present invention, a pedestal crane also includes: The first damping ring is arranged around the periphery of the motor near the volute. The base is provided with a surrounding structure corresponding to the position of the first damping ring. The surrounding length of the surrounding structure around the first damping ring along the circumference of the first damping ring is greater than half the circumference of the first damping ring. The second damping ring is arranged around the periphery of the end of the motor away from the volute.

[0025] With this configuration, the first and second damping rings are positioned between the motor housing and the motor mounting base to reduce the impact of motor vibration and decrease noise. The central angle of the portion of the first damping ring enclosed by the surrounding structure is greater than 180°. The surrounding structure restricts the movement of the first damping ring and the motor housing along the opening direction of the base. When disassembling the motor and disconnecting the motor housing from the base, the surrounding structure prevents the motor from accidentally falling off.

[0026] The present invention provides a pedestal crane, comprising a volute, a cross-flow fan, a motor mounting base, and a motor. The cross-flow fan is disposed inside the volute, and the motor is disposed on the motor mounting base. The motor mounting base includes a base and a cover, with the base fixedly disposed at one end of the volute. The cover is detachably connected to the base, and the motor is disposed between the cover and the base. The motor housing is detachably connected to the base, and the motor output shaft is detachably connected to the cross-flow fan. After removing the cover from the base, the motor housing is disconnected from the base, and the motor output shaft is disconnected from the cross-flow fan. A first clearance notch is provided at the end of the base away from the volute, allowing the motor, disconnected from the base and the cross-flow fan, to enter and exit the base along the axial direction of the cross-flow fan. When it is necessary to disassemble the motor, the cover can be removed from the base, the motor housing can be disconnected from the base, and the motor output shaft can be disconnected from the cross-flow fan. Applying a force to the motor in a direction away from the cross-flow fan will cause the motor to move relative to the base through the first clearance notch. With the motor's output shaft completely outside the cross-flow fan, apply a force to the motor in a radial direction away from the base to remove it from the motor mounting bracket, thus completing the motor disassembly. When installing the motor, align the motor's output shaft axis with the cross-flow fan's output shaft axis, apply a force to the motor in a direction close to the cross-flow fan, bringing the motor closer so that the motor's output shaft extends into the cross-flow fan's bushing. After the motor is in place, connect the motor's output shaft to the cross-flow fan, connect the motor housing to the base, and then connect the gland to the base, completing the motor installation. This setup eliminates the need to disassemble the cross-flow fan during motor assembly and disassembly, resulting in relatively small parts and significantly reducing assembly and disassembly difficulty, improving operational convenience, and solving the problem of inconvenient motor assembly and disassembly in related technologies. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the external structure of the pedestal crane provided by this utility model.

[0029] Figure 2 This is a structural diagram of the crane provided by this utility model when the air inlet grille is removed.

[0030] Figure 3 This is a structural diagram of the crane provided by this utility model when the side cover is removed.

[0031] Figure 4 yes Figure 3 Enlarged view of point I in the middle.

[0032] Figure 5 This is a structural diagram of the crane provided by this utility model when the reinforcing component is removed.

[0033] Figure 6 yes Figure 5 A magnified view of point X in the middle.

[0034] Figure 7 This is a structural diagram of the crane provided by this utility model when the pressure cover is removed.

[0035] Figure 8 yes Figure 7 A magnified view of point Y in the middle.

[0036] Figure 9 This is a schematic diagram of the structure of the gantry crane provided by this utility model when the motor is removed.

[0037] Figure 10 yes Figure 9 A magnified view of point Z in the middle.

[0038] Figure 11 This is a schematic diagram of the connection structure between the motor and the cross-flow fan provided by this utility model.

[0039] Figure 12 This is a schematic diagram of the enclosure structure provided by this utility model.

[0040] Figure label: 1. Bottom shell; 2. Volute; 3. Crossflow fan; 4. Motor; 5. Base; 6. Cover; 7. Enclosure structure; 8. Output shaft; 9. Side cover; 10. Reinforcing member; 11. First connecting hole; 12. First fastener; 13. First positioning groove; 14. Second positioning groove; 15. Third connecting hole; 16. Second fastener; 17. Cover body; 18. Air inlet grille; 19. First vibration damping ring; 20. Third fastener; 21. Bushing. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0042] The following is combined with Figures 1 to 12 This invention describes a pedestal crane.

[0043] like Figures 1 to 12 As shown, the crane provided in this embodiment of the present invention includes a volute 2, a cross-flow fan 3, a motor mounting base, and a motor 4.

[0044] Specifically, the cross-flow fan 3 is located inside the volute 2, and the motor 4 is located in the motor mounting bracket.

[0045] The motor mounting base includes a base 5 and a cover 6. The base 5 is fixedly mounted on one end of the volute 2. The cover 6 is detachably connected to the base 5. The motor 4 is located between the cover 6 and the base 5. The housing of the motor 4 is detachably connected to the base 5. The output shaft 8 of the motor 4 is detachably connected to the cross-flow fan 3.

[0046] After removing the pressure cap 6 from the base 5, disconnect the housing of the motor 4 from the base 5, and disconnect the output shaft 8 of the motor 4 from the cross-flow fan 3.

[0047] A first clearance notch is provided at the end of the base 5 away from the volute 2. The first clearance notch allows the motor 4, which is disconnected from the base 5 and the cross-flow fan 3, to enter and exit the base 5 along the axial direction of the cross-flow fan 3.

[0048] When it is necessary to disassemble the motor 4, the pressure cap 6 can be removed from the base 5, the housing of the motor 4 can be disconnected from the base 5, and the output shaft 8 of the motor 4 can be disconnected from the cross-flow fan 3. Applying a force to the motor 4 in a direction away from the cross-flow fan 3 will move the motor 4 relative to the base 5 through the first clearance notch. When the output shaft 8 of the motor 4 is completely outside the cross-flow fan 3, applying a force to the motor 4 in a radial direction away from the base 5 along the cross-flow fan 3 will remove the motor 4 from the motor mounting bracket, thus completing the disassembly of the motor 4.

[0049] When installing motor 4, align the output shaft 8 of motor 4 with the axis of cross-flow fan 3. Apply a force to motor 4 in a direction close to cross-flow fan 3, bringing motor 4 closer to cross-flow fan 3 so that the output shaft 8 of motor 4 extends into the bushing 21 of cross-flow fan 3. After motor 4 is installed in place, connect the output shaft 8 of motor 4 to cross-flow fan 3, connect the housing of motor 4 to base 5, and then connect the cover 6 to base 5. This completes the installation of motor 4.

[0050] With this configuration, when disassembling and assembling the motor 4, there is no need to disassemble and assemble the cross-flow fan 3. The mass and volume of the disassembled and assembled parts are relatively small, which greatly reduces the difficulty of disassembly and assembly, improves the convenience of operation, and solves the problem of inconvenient disassembly and assembly of the motor 4 in the related technologies of the pedestal crane.

[0051] It should be noted that the cross-flow fan 3 has a bushing 21 at its end, and the axis of the bushing 21 coincides with the axis of the cross-flow fan 3. The output shaft 8 of the motor 4 extends into the bushing 21, and the output shaft 8 of the motor 4 is connected to the bushing 21 by a third fastener 20.

[0052] Specifically, a threaded hole is provided on the side wall of the bushing 21, and the third fastener 20 is threadedly connected to the threaded hole. The side wall of the output shaft 8 of the motor 4 forms an anti-rotation plane, and the first end of the third fastener 20 can abut against the anti-rotation plane. Through the interaction between the first end of the third fastener 20 and the anti-rotation plane of the output shaft 8 of the motor 4, the relative rotation between the bushing 21 of the cross-flow fan 3 and the output shaft 8 of the motor 4 can be restricted, thereby allowing the output shaft 8 of the motor 4 to drive the cross-flow fan 3 to rotate.

[0053] The second end of the third fastener 20 is located outside the bushing 21. Applying torque to the second end of the third fastener 20 causes the third fastener 20 to rotate relative to the bushing 21, which can make the first end of the third fastener 20 approach or move away from the anti-rotation plane of the output shaft 8 of the motor 4.

[0054] When the first end of the third fastener 20 is pressed against the anti-rotation plane of the output shaft 8 of the motor 4, the bushing 21 of the cross-flow fan 3 will neither rotate relative to the output shaft 8 of the motor 4 nor move relative to the output shaft 8 of the motor 4 along the axial direction of the cross-flow fan 3. At this time, it is considered that the second end of the cross-flow fan 3 is connected to the output shaft 8 of the motor 4.

[0055] A gap is created between the second end of the third fastener 20 and the anti-rotation plane of the output shaft 8 of the motor 4, so that the cross-flow fan 3 can move relative to the output shaft 8 of the motor 4 along its own axial direction. At this time, it is considered that the second end of the cross-flow fan 3 is disconnected from the output shaft 8 of the motor 4.

[0056] In this embodiment of the invention, the crane also includes a base shell 1 and a cover plate. One end of the base shell 1 is open, and the cover plate is detachably connected to the open end of the base shell 1. The volute 2 and the cross-flow fan 3 are both disposed inside the base shell 1.

[0057] The volute 2 has an air inlet on one side corresponding to the open end of the bottom shell 1. The gantry crane uses a cross-flow fan 3, which helps to reduce the size of the bottom shell 1 along its own open direction. When the gantry crane is in the hoisting state, the open end of the bottom shell 1 faces downwards, and the cover plate is located below the bottom shell 1.

[0058] In some embodiments, the base 5 can be completely disposed inside the bottom shell 1, and a certain gap is reserved between the side of the base 5 away from the volute 2 and the side plate of the bottom shell 1. While ensuring the structural integrity of the side plate of the bottom shell 1, the motor 4 can be allowed to approach or move away from the cross-flow fan 3 along the axial direction of the cross-flow fan 3.

[0059] In other embodiments, a portion of the base 5 is disposed inside the bottom shell 1, and a portion of the base 5 is disposed outside the bottom shell 1. In this case, a second clearance notch is provided on the side plate of the bottom shell 1, which allows the base 5 and the pressure cap 6 to penetrate through the side plate of the bottom shell 1, so that portions of the base 5 and the pressure cap 6 are located outside the bottom shell 1, as shown below. Figures 3 to 6 The second clearance notch penetrates the side plate of the bottom shell 1 at the position corresponding to the open end of the bottom shell 1, so that the pressure cap 6 can move closer to or further away from the base 5 along the open direction of the bottom shell 1.

[0060] With this configuration, when the motor 4 moves in and out of the base 5 along the axis of the cross-flow fan 3, the end of the motor 4 away from the cross-flow fan 3 is located outside the bottom shell 1. The position of the side plate of the bottom shell 1 no longer affects the movement space of the motor 4 along the axis of the cross-flow fan 3. This helps to reduce the size of the bottom shell 1 along the axis of the cross-flow fan 3, and helps to reduce the overall size and volume of the gantry crane.

[0061] At this time, the pedestal crane also includes a side cover 9, which is detachably mounted on one end of the base 5 corresponding to the bottom shell 1. The side cover 9 is used to cover the motor mounting base and the second clearance notch to ensure effective protection of the motor 4 and improve the aesthetics of the pedestal crane.

[0062] During the disassembly of motor 4, the side cover 9 needs to be detached from the bottom shell 1 and the cover plate before removing the cover plate. During the installation of motor 4, after the cover plate is installed onto the bottom shell 1, the side cover 9 needs to be installed onto the bottom shell 1 and the cover plate.

[0063] It should be noted that the end of the base 5 closest to the volute 2 is fixedly connected to the volute 2; specifically, the base 5 and the volute 2 can be integrally formed. The position of the base 5 corresponding to the side plate of the bottom shell 1 is fixedly connected to the bottom shell 1 to ensure the stability of the base 5.

[0064] The base shell 1 can be made of metal to ensure structural strength. The side cover 9 can be made of plastic to reduce the weight of the crane.

[0065] In a further embodiment, the crane also includes a reinforcing member 10, which is disposed in the second clearance notch and located on the side of the pressure cover 6 away from the base 5. The two ends of the reinforcing member 10 are detachably connected to the side plates of the bottom shell 1.

[0066] With this configuration, the reinforcing member 10 can close the position of the open end of the bottom shell 1 corresponding to the second clearance notch, thereby increasing the structural rigidity and strength of the side plate of the bottom shell 1 and improving the stability of the bottom shell 1.

[0067] During the disassembly of motor 4, after removing the cover plate and before removing the pressure cover 6 from the base 5, the reinforcing member 10 needs to be removed from the side plate of the bottom shell 1. During the installation of motor 4, after installing the pressure cover 6 to the base 5 and before installing the cover plate to the bottom shell 1, the reinforcing member 10 needs to be installed to the side plate of the bottom shell 1.

[0068] In a specific embodiment, a first connecting hole 11 is provided on the side plate of the bottom shell 1, and the axis of the first connecting hole 11 is parallel to the opening direction of the bottom shell 1.

[0069] Second connecting holes are provided at both ends of the reinforcing member 10. The reinforcing member 10 is connected to the side plate of the bottom shell 1 by the first fastener 12. (Refer to...) Figure 3 and Figure 4 .

[0070] With this configuration, when the crane is in the hoisting state, the open end of the bottom shell 1 faces downwards, and the end of the first fastener 12 faces downwards. The cover plate and the first fastener 12 can be easily disassembled and assembled from below the crane, facilitating operation.

[0071] Specifically, the first fastener 12 can be a connecting screw. At least one of the first connecting hole 11 and the second connecting hole can be a threaded hole, or the first fastener 12 can be connected with a nut.

[0072] In this embodiment, a first positioning groove 13 is provided on the side plate of the bottom shell 1. A pair of first positioning grooves 13 are provided, and each end of the reinforcing member 10 corresponds to one of the first positioning grooves 13. Both ends of the reinforcing member 10 can extend into the first positioning groove 13. (Refer to...) Figure 3 and Figure 4 .

[0073] When both ends of the reinforcing member 10 are located in the first positioning groove 13, the second connecting hole on the reinforcing member 10 is exactly aligned with the first connecting hole 11 on the side plate of the bottom shell 1, which facilitates the installation of the first fastener 12.

[0074] In this embodiment, the side of the reinforcing member 10 facing the pressure cap 6 is adapted to the shape of the pressure cap 6. A second positioning groove 14 is provided on the side of the pressure cap 6 near the reinforcing member 10. The second positioning groove 14 extends circumferentially along the pressure cap 6 and allows the edge of the reinforcing member 10 to extend into it. (Refer to...) Figures 4 to 6 .

[0075] The second positioning groove 14 can further position the reinforcing member 10, and the reinforcing member 10 can further restrict the position of the pressure cover 6, further ensuring the stability of the pressure cover 6 and the motor 4.

[0076] Regarding the detachable connection structure between the side cover 9 and the bottom shell 1, in this embodiment of the utility model, while the side cover 9 and the bottom shell 1 are snapped together, the side plate and the bottom shell 1 are connected and fixed by the second fastener 16.

[0077] Specifically, a third connecting hole 15 is provided at the open end of the bottom shell 1, and the axis of the third connecting hole 15 is parallel to the open direction of the bottom shell 1. A fourth connecting hole is provided at the position of the side cover 9 corresponding to the open end of the bottom shell 1. When the bottom shell 1 and the cover plate are installed on the side cover 9, the fourth connecting hole corresponds to the third connecting hole 15. The second fastener 16 can pass through both the third connecting hole 15 of the bottom shell 1 and the fourth connecting hole of the side cover 9, thereby fixing the side cover 9 and the bottom shell 1 together.

[0078] In this embodiment, the side cover 9 includes a side cover body and a connecting portion. The connecting portion is fixedly disposed on the side cover body, and the connecting portion corresponds to the open end of the bottom shell 1. A fourth connecting hole is disposed on the connecting portion, and along the open direction of the bottom shell 1, the projection area of ​​the fourth connecting hole is located outside the projection area of ​​the side cover body, as shown in the reference. Figure 2 .

[0079] With this configuration, the end of the second fastener 16 can be detached while the crane is in the hoisting state, and the second fastener 16 will not be obstructed by the side cover 9. The second fastener 16 can be installed or removed from below the crane, making the operation convenient.

[0080] Specifically, the second fastener 16 can be a connecting screw, at least one of the third connecting hole 15 and the fourth connecting hole can be a threaded hole, or the second fastener 16 can be connected with a nut.

[0081] In this embodiment, the cover plate includes a cover body 17 and an air inlet grille 18.

[0082] Along the opening direction of the bottom shell 1, the projection area of ​​the cover 17 is located outside the projection area of ​​the air inlet of the volute 2, and the projection area of ​​the air inlet of the volute 2 is located inside the projection area of ​​the air inlet grille 18.

[0083] The cover 17 is detachably connected to the bottom shell 1. The end of the air inlet grille 18 away from the cover 17 is rotatably connected to the bottom shell 1, and the end of the air inlet grille 18 near the cover 17 is snapped into the cover 17.

[0084] With this configuration, when disassembling and assembling the volute 2, the cross-flow fan 3, and the motor 4, only the air inlet grille 18 needs to be disassembled and assembled. When disassembling and assembling other components such as the volute 2, the cross-flow fan 3, and the motor 4, the cover 17 can be disassembled and assembled. When disassembling and assembling the air inlet grille 18, only the end of the air inlet grille 18 closest to the cover 17 needs to be disassembled and assembled. When the end of the air inlet grille 18 closest to the cover 17 is disconnected from the cover 17, the air inlet grille 18 rotates outward from the bottom shell 1. When the crane is in the hoisting state, the air inlet grille 18 is in a downward hanging state.

[0085] In this embodiment of the utility model, the gantry crane also includes a first damping ring 19 and a second damping ring. The first damping ring 19 and the second damping ring are disposed between the housing of the motor 4 and the motor mounting base to reduce the impact of vibration of the motor 4 and reduce noise.

[0086] Specifically, the first damping ring 19 is arranged around the periphery of the motor 4 near the end of the volute 2, as shown in the reference. Figure 12 The second damping ring is located on the periphery of the end of the motor 4 furthest from the volute 2.

[0087] The first damping ring 19 and the second damping ring are made of rubber.

[0088] A surrounding structure 7 is provided on the base 5 corresponding to the position of the first damping ring 19. The surrounding length of the surrounding structure 7 around the first damping ring 19 along the circumference is greater than half the circumference of the first damping ring 19. (Refer to...) Figure 12 .

[0089] The half circumference of the first damping ring 19 is half the circumference of the first damping ring 19.

[0090] Understandably, the central angle of the portion of the first damping ring 19 surrounded by the surrounding structure 7 is greater than 180°. The surrounding structure 7 can restrict the movement of the first damping ring 19 and the housing of the motor 4 along the open direction of the bottom shell 1. When disassembling the motor 4, the surrounding structure 7 can prevent the motor 4 from accidentally falling off when the housing of the motor 4 is disconnected from the base 5.

[0091] The following content describes in detail the disassembly and assembly process of the motor 4 of the pedestal crane provided in the embodiments of this utility model, in conjunction with the above-mentioned embodiments.

[0092] With the crane in the hoisting state, when it is necessary to disassemble the motor 4, first disconnect the end of the air inlet grille 18 near the cover 17 from the cover 17, and rotate the air inlet grille 18 downwards so that the air inlet grille 18 is in a downward hanging state. Then remove the second fastener 16 and remove the side cover 9 from the bottom shell 1 and the cover plate. Then remove the first fastener 12 and remove the reinforcing member 10 from the bottom shell 1. Then remove the pressure cover 6 from the base 5, so that the housing of the motor 4 is disconnected from the base 5, and the output shaft 8 of the motor 4 is disconnected from the cross-flow fan 3. Apply a force to the motor 4 in a direction away from the cross-flow fan 3, so that the motor 4 moves out of the base 5 through the first clearance notch of the base 5 until the output shaft 8 of the motor 4 is completely outside the cross-flow fan 3. Then the motor 4 can be taken out along the opening direction of the bottom shell 1. At this point, the disassembly of the motor 4 is completed.

[0093] With the hoist in the hoisting state, when it is necessary to install the motor 4, align the axis of the output shaft 8 of the motor 4 with the axis of the cross-flow fan 3, apply a force to the motor 4 in the direction close to the cross-flow fan 3, so that the output shaft 8 of the motor 4 extends into the bushing 21 of the cross-flow fan 3. After the motor 4 is installed in place, connect the output shaft 8 of the motor 4 to the cross-flow fan 3, connect the housing of the motor 4 to the base 5, and then connect the pressure cover 6 to the base 5. Use the first fastener 12 to connect the reinforcing member 10 to the side plate of the bottom shell 1, install the side cover 9 at the end of the bottom shell 1 and the cover plate, and use the second fastener 16 to connect the side cover 9 to the bottom shell 1. Finally, rotate the air inlet grille 18 upward so that the end of the air inlet grille 18 near the cover 17 is engaged with the cover 17. At this point, the installation of the motor 4 is completed.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A type of crane, characterized in that, include: volute (2); A cross-flow fan (3) is disposed inside the volute (2); The motor mounting base includes a base (5) and a cover (6). The base (5) is fixedly disposed at one end of the volute (2), and the cover (6) is detachably connected to the base (5). The motor (4) is located between the cover (6) and the base (5). The housing of the motor (4) is detachably connected to the base (5). The output shaft (8) of the motor (4) is detachably connected to the cross-flow fan (3). The base (5) is provided with a first clearance notch at one end away from the volute (2), and the first clearance notch is adapted to allow the motor (4) to enter and exit the base (5) along the axial direction of the cross-flow fan (3).

2. The crane according to claim 1, characterized in that, Also includes: The bottom shell (1) is open at one end. The volute (2) and the cross-flow fan (3) are both located inside the bottom shell (1). The side plate of the bottom shell (1) is provided with a second clearance notch. The second clearance notch is adapted to allow the base (5) and the pressure cap (6) to pass through the side plate of the bottom shell (1) so that the base (5) and the pressure cap (6) are partially located inside the bottom shell (1). The second clearance notch passes through the side plate of the bottom shell (1) at the position corresponding to the open end of the bottom shell (1). The base (5) is connected to the side plate of the bottom shell (1). A cover plate, which is detachably connected to the open end of the bottom shell (1).

3. The crane according to claim 2, characterized in that, Also includes: A side cover (9) is detachably disposed at one end of the bottom shell (1) and the cover plate corresponding to the base (5), and the side cover (9) is adapted to cover the motor mounting base and the second clearance notch.

4. The crane according to claim 3, characterized in that, The side cover (9) is engaged with the bottom shell (1); The bottom shell (1) has a third connecting hole (15) at its open end. The axis of the third connecting hole (15) is parallel to the open direction of the bottom shell (1). The side cover (9) has a fourth connecting hole at the position corresponding to the open end of the bottom shell (1). The side cover (9) is connected to the bottom shell (1) by a second fastener (16).

5. The crane according to claim 4, characterized in that, The side cover (9) includes: Side cover body; A connecting part is fixedly disposed on the side cover body. The connecting part corresponds to the open end of the bottom shell (1). The fourth connecting hole is disposed on the connecting part. Along the open direction of the bottom shell (1), the projection area of ​​the fourth connecting hole is located outside the projection area of ​​the side cover body.

6. The crane according to claim 2, characterized in that, Also includes: A reinforcing member (10) is provided at the second clearance notch. The reinforcing member (10) is located on the side of the cover (6) away from the base (5). Both ends of the reinforcing member (10) are detachably connected to the side plate of the bottom shell (1).

7. The crane according to claim 6, characterized in that, The side plate of the bottom shell (1) is provided with a first connecting hole (11), the axis of the first connecting hole (11) is parallel to the opening direction of the bottom shell (1), the two ends of the reinforcing member (10) are provided with second connecting holes, and the reinforcing member (10) is connected to the side plate of the bottom shell (1) by a first fastener (12). The side plate of the bottom shell (1) is provided with a first positioning groove (13), and both ends of the reinforcing member (10) are adapted to extend into the first positioning groove (13).

8. The crane according to claim 6, characterized in that, The side of the reinforcing member (10) facing the pressure cap (6) is adapted to the shape of the pressure cap (6); The pressure cap (6) is provided with a second positioning groove (14) on the side near the reinforcing member (10). The second positioning groove (14) extends circumferentially along the pressure cap (6) and is adapted for the edge of the reinforcing member (10) to extend into.

9. The crane according to any one of claims 2-8, characterized in that, The cover plate includes: The cover (17) is located outside the projection area of ​​the air inlet of the volute (2) along the opening direction of the bottom shell (1). The cover (17) is detachably connected to the bottom shell (1). The air intake grille (18) is located in the projection area of ​​the air inlet of the volute (2) along the opening direction of the bottom shell (1). The end of the air intake grille (18) away from the cover (17) is rotatably connected to the bottom shell (1), and the end of the air intake grille (18) close to the cover (17) is snapped into the cover (17).

10. The crane according to any one of claims 1-8, characterized in that, Also includes: The first damping ring (19) is arranged around the circumference of the end of the motor (4) near the volute (2). The base (5) is provided with a surrounding structure (7) corresponding to the position of the first damping ring (19). The surrounding structure (7) has a surrounding length of the first damping ring (19) along the circumference of the first damping ring (19) that is greater than half the circumference of the first damping ring (19). The second damping ring is arranged around the periphery of the end of the motor (4) away from the volute (2).

Images