Industrial portal crane with hidden wiring structure

Abstract

An industrial door machine with a hidden wiring structure comprises a motor, a rear end cover of the motor is provided with a wire outlet hole, a wire harness of the motor is arranged in the wire outlet hole in a penetrating mode, and the wire harness on one side of the rear end cover is located in the motor; a power line outlet is formed in the driving box; a transmission assembly in transmission connection with the output shaft is arranged in the gearbox, a wire passing cavity is formed in one side of the gearbox, a connecting part is arranged on the other side, adjacent to the wire passing cavity, of the gearbox, and a wire passing hole for communicating the wire passing cavity with the exterior of the wire passing cavity is formed in the connecting part; a wire harness on the other side of the rear end cover sequentially penetrates through the wire passing hole, the wire passing cavity and the power wire outlet, and the tail end of the wire harness is connected with the driving box. Wherein the connecting part is fixedly connected with the rear end cover, the wire outlet hole is communicated with the wire passing hole, the gear box is fixedly connected with the driving box, and a wire harness between the power wire outlet and the wire passing hole is sealed between the wire passing cavity and the driving box, so that the appearance of equipment is simpler, the safety is improved, the service life is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of industrial door machine technology, and in particular to an industrial door machine with a concealed wiring structure. Background Technology

[0002] An industrial gantry crane includes a motor, a drive unit, and a gearbox. The motor's wiring is usually located on the side of the motor housing. The motor is connected to the drive unit via a wiring harness, which is located on the side of the industrial gantry crane.

[0003] In the above-mentioned industrial gantry crane layout, the exposed wiring harnesses are easily pulled, worn or damaged; and the wiring harnesses are directly exposed to the industrial environment, making them susceptible to corrosion from dust, moisture, oil and other contaminants. This increases the risk of short circuits and electric shocks, accelerates the aging of the wiring harnesses, reduces their lifespan, and increases maintenance costs. In addition, exposed wiring harnesses also affect the aesthetics of the equipment, occupy external space, and affect the equipment layout. Utility Model Content

[0004] In response to the shortcomings of the existing production technology, the applicant provides an industrial door machine with a concealed wiring structure, which makes the equipment look simpler, improves the overall visual effect, increases safety, extends service life, and reduces maintenance costs.

[0005] The technical solution adopted in this utility model is as follows:

[0006] An industrial gantry crane with a concealed wiring structure includes:

[0007] The motor has a wire outlet hole on its rear end cover, the output shaft end of the motor is located outside the rear end cover, the motor's wiring harness passes through the wire outlet hole, and the wiring harness on one side of the rear end cover is located inside the motor.

[0008] A drive box, wherein a power line outlet is provided on the drive box;

[0009] The gearbox has a transmission assembly internally connected to the output shaft. A wire passage cavity is provided on one side of the gearbox, and a connecting part is provided on the other side of the gearbox adjacent to the wire passage cavity. The connecting part has a wire passage hole that connects the wire passage cavity and the outside of the wire passage cavity. The wire harness on the other side of the rear end cover is sequentially passed through the wire passage hole, the wire passage cavity and the power line outlet. The end of the wire harness is connected to the drive box.

[0010] The connecting part is fixedly connected to the rear end cover and connects the outlet hole and the through hole. The gearbox is fixedly connected to the drive box and seals the wire harness between the power line outlet and the through hole between the through cavity and the drive box.

[0011] As a further improvement to the above technical solution:

[0012] One side of the cable passage cavity is an open structure, and the end face of the open structure is a plane that contacts the outer surface of the drive box. The end face is provided with a plurality of threaded holes, and fasteners for fixing the end face to the housing of the drive box are provided in the threaded holes.

[0013] The rear end cover is installed at the end of the motor housing, and a wire-passing channel for passing the wire harness is provided on the side wall of the housing. The wire-passing channel is connected to the wire outlet hole.

[0014] The number of the threading channels is four, and they are evenly distributed around the axis of the outer shell. The cross-section of the outer shell is square, and each threading channel corresponds to one side of the square.

[0015] The housing includes a main housing and a brake protection cover, which are connected by a front end cover. The main housing contains a stator and rotor system connected to the output shaft, and the brake protection cover contains an electric brake connected to the output shaft. The wiring channel is located on the main housing and extends through the side wall of the main housing along the axial direction of the main housing. The front end cover has a clearance hole corresponding to the wiring channel.

[0016] The wiring harness includes a first cable connected to the stator and rotor system, and a second cable connected to the electric brake. The clearance hole is used to avoid the first cable, so that the first cable is bent and passed through the cable passage. At the same time, the clearance hole is used to pass through the second cable.

[0017] An encoder is provided inside the main housing. The wiring harness also includes a third cable connected to the encoder. The clearance hole is used to avoid the third cable, so that the third cable is bent and passed through the wiring channel.

[0018] The front cover is plate-shaped, and the cross-sectional shapes of the main housing and the brake protection cover are matched with the shape of the front cover.

[0019] The connecting part includes an extension block that connects to the outside of the gearbox. A connecting plate is provided at the outer end of the extension block. The wire hole passes through both the extension block and the connecting plate. The connecting plate is fixedly connected to the rear end cover.

[0020] A braking resistor is installed inside the cable passage cavity, and the braking resistor is electrically connected to the drive box.

[0021] The gearbox housing is made of aluminum alloy, and the gearbox housing and the wire passage cavity are integrally formed.

[0022] The beneficial effects of this utility model are as follows:

[0023] This utility model has a compact and reasonable structure and is easy to operate. The motor's cable outlet is located on the rear end cover of the motor. A cable passage cavity is set on the gearbox, which is fixedly connected to the drive box and the motor. After the rear end cover is connected to the gearbox, the wire harness located outside the motor can directly pass through the cable passage cavity and enter the drive box, so that the wire harness is not exposed outside the industrial gantry machine, resulting in a simpler appearance of the equipment, improved overall visual effect, increased safety, extended service life, and reduced maintenance costs.

[0024] This utility model also has the following advantages:

[0025] (1) Based on the specific working environment conditions of the industrial gantry crane, the brake resistor is set in the wiring cavity between the drive box and the gear box to avoid the brake resistor and the connecting wire being exposed, and to meet the heat dissipation requirements of the brake resistor.

[0026] (2) Four wiring channels are set on the outer shell to make the wiring space on the outer shell symmetrical. There is no need to confirm the direction, which improves assembly efficiency and can also reduce materials and save costs. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model.

[0028] Figure 2 This is a cross-sectional view of the present invention.

[0029] Figure 3 This is an exploded view of the present invention.

[0030] Figure 4 This is an exploded view (from another perspective) of the present invention.

[0031] Figure 5 This is a schematic diagram of the gearbox structure of this utility model.

[0032] Figure 6 This is a schematic diagram of the gearbox structure of this utility model (from another perspective).

[0033] Figure 7 This is an exploded view of the structure of the motor of this utility model.

[0034] Figure 8 This is a schematic diagram of the structure of the motor of this utility model (exploded view, another perspective).

[0035] Figure 9 This is a schematic diagram of the main housing of this utility model.

[0036] in:

[0037] 1. Drive unit; 10. Power line outlet;

[0038] 2. Gearbox; 21. Drive shaft; 22. Cable guide cavity;

[0039] 23. Connecting part; 231. Extension block; 232. Connecting plate;

[0040] 24. Wiring hole; 25. Braking resistor;

[0041] 3. Electric motor;

[0042] 31. Outer casing; 311. Brake protection cover; 312. Front cover; 3120. Clearance hole; 313. Main casing; 3130. Wiring channel;

[0043] 32. Wire harness; 321. First cable; 322. Third cable; 323. Second cable;

[0044] 33. Output shaft; 34. Rear end cover; 340. Cable outlet; 35. Electric brake. Detailed Implementation

[0045] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0046] Example 1:

[0047] like Figures 1-6 As shown, the industrial door operator with a concealed wiring structure in this embodiment includes:

[0048] The motor 3 has a wire outlet hole 340 on its rear end cover 34. The end of the output shaft 33 of the motor 3 is located outside the rear end cover 34. The wire harness 32 of the motor 3 passes through the wire outlet hole 340. The wire harness 32 on one side of the rear end cover 34 is located inside the motor 3.

[0049] Drive box 1, with a power line outlet 10 provided on drive box 1;

[0050] The gearbox 2 has a transmission assembly internally connected to the output shaft 33. A wire passage cavity 22 is provided on one side of the gearbox 2, and a connecting part 23 is provided on the other side of the gearbox 2 adjacent to the wire passage cavity 22. A wire passage hole 24 is provided on the connecting part 23 to connect the wire passage cavity 22 and the outside of the wire passage cavity 22. The wire harness 32 on the other side of the rear cover 34 is sequentially passed through the wire passage hole 24, the wire passage cavity 22 and the power line outlet 10. The end of the wire harness 32 is connected to the drive box 1.

[0051] The connecting part 23 is fixedly connected to the rear cover 34 and connects the outlet hole 340 and the through hole 24. The gear box 2 is fixedly connected to the drive box 1 and encloses the wire harness 32 between the power line outlet 10 and the through hole 24 between the through cavity 22 and the drive box 1.

[0052] Specifically, the wiring harness 32 on one side of the rear cover 34 is located inside the motor 3, ensuring that the wiring harness 32 does not protrude from the outer surface of the motor 3. The internal transmission component structure of the gearbox 2 is a conventional design and not an innovation of this application, so it will not be described in detail here. Figure 2 As shown, the gearbox 2 has a rectangular cross-section, with the through-line cavity 22 and the connecting part 23 located on two adjacent sides of the rectangle.

[0053] The gearbox 2 is also equipped with a drive shaft 21 for connecting with the door's roller drive. The drive box 1 contains a drive control board, a power switch, and other electronic components. The wiring harness 32 connects the drive box 1 and the motor 3. The drive box 1 serves to drive and control the motor 3.

[0054] The outlet hole 340 of the motor 3 is set on the rear end cover 34 of the motor 3. A wire passage cavity 22 is set on the gear box 2, which is fixedly connected to the drive box 1 and the motor 3. After the rear end cover 34 is connected to the gear box 2, the wire harness 32 located outside the motor 3 passes directly through the wire passage cavity 22 and enters the drive box 1. This prevents the wire harness 32 from being exposed outside the industrial gate machine, making the equipment appearance simpler, improving the overall visual effect, increasing safety, extending service life, and reducing maintenance costs.

[0055] Example 2:

[0056] The industrial door machine with a concealed wiring structure in this embodiment further optimizes the design of the external wiring on the industrial door machine based on the first embodiment, thereby further improving the overall visual effect of the industrial door machine.

[0057] like Figure 5 , Figure 6 As shown, a braking resistor 25 is installed inside the wire passage cavity 22, and the braking resistor 25 is electrically connected to the drive box 1.

[0058] The gearbox 2 housing is made of aluminum alloy, and the gearbox 2 housing and the wire passage cavity 22 are integrally formed.

[0059] Normally, the brake resistor 25 is installed at the bottom of the drive box 1 and exposed to the external environment. At the same time, the connection wire between the brake resistor 25 and the drive box 1 is exposed, which makes the overall integrity of the industrial gantry crane poor.

[0060] The braking resistor 25 converts excess electrical energy into heat energy and releases it into the environment when the motor 3 brakes or brakes suddenly, preventing voltage overshoot and protecting the inverter, driver, or other electronic components. Specifically, in this embodiment, the braking resistor 25 is connected to the drive control board inside the drive box 1 via a connecting wire, which passes through the power line outlet 10.

[0061] In one specific implementation, when the industrial gantry crane does not have high requirements for braking speed, the power of the braking resistor 25 is relatively small, such as less than 100W. In this case, the heat generated by the braking resistor 25 is not much, and the heat dissipation through the aluminum alloy wire cavity 22 is sufficient to meet the requirements.

[0062] In another specific embodiment, the gearbox 2 is equipped with a lubricating oil cooling system. This cooling system can indirectly ensure the temperature inside the wire passage cavity 22 through the gearbox 2 housing, ensuring good heat dissipation of the brake resistor 25 and making full use of the cooling capacity of the lubricating oil cooling system.

[0063] Based on the specific working conditions of the industrial gantry crane, the brake resistor 25 is placed inside the cable passage cavity 22 between the drive box 1 and the gear box 2 to prevent the brake resistor 25 and the connecting wires from being exposed, thus meeting the heat dissipation requirements of the brake resistor 25.

[0064] like Figures 3-5 As shown, one side of the through-hole 22 is an open structure. The end face of the open structure is a plane that contacts the outer surface of the drive box 1. The end face is provided with multiple threaded holes, and fasteners for fixing the end face to the housing of the drive box 1 are provided in the threaded holes.

[0065] The connecting part 23 includes an extension block 231 that is connected to the outside of the gearbox 2. A connecting plate 232 is provided at the outer end of the extension block 231. The wire hole 24 passes through both the extension block 231 and the connecting plate 232. The connecting plate 232 is fixedly connected to the rear cover 34.

[0066] The assembly process of the industrial gantry crane with concealed wiring structure in this embodiment is as follows:

[0067] After the wiring harness 32 of the motor 3 passes through the wire hole 24, the wire cavity 22 and the power line outlet 10, it is connected to the electronic components in the drive box 1. At the same time, the rear cover 34 and the connecting plate 232 are fixedly connected, and the output shaft 33 of the motor 3 is connected to the transmission component inside the gear box 2.

[0068] The brake resistor 25 is fixedly installed in the wire passage cavity 22, and the connecting wire of the brake resistor 25 is connected to the drive control board in the drive box 1.

[0069] The open end face of the through-hole 22 is brought into contact with the outer surface of the drive box 1, and then the box body of the drive box 1 is fixedly connected using fasteners.

[0070] Example 3:

[0071] Based on the above embodiments, the concealed wiring structure of the industrial door operator in this embodiment, such as... Figures 7-9As shown, a rear end cover 34 is installed at the end of the housing 31 of the motor 3, and a wire passage 3130 for threading the wire harness 32 is provided on the side wall of the housing 31. The wire passage 3130 is connected to the wire outlet hole 340.

[0072] Furthermore, there are four wiring channels 3130, evenly distributed around the axis of the housing 31. The cross-section of the housing 31 is square, and each wiring channel 3130 corresponds to one side of the square. By providing four wiring channels 3130 on the housing 31, the wiring space on the housing 31 is arranged symmetrically, eliminating the need to confirm direction, improving assembly efficiency, reducing material usage, and saving costs. Specifically, the shape of each wiring channel 3130 is related to the number and type of cables in the wire harness 32.

[0073] Furthermore, the outer casing 31 includes a main casing 313 and a brake protection cover 311, which are connected by a front end cover 312. The main casing 313 is provided with a stator and rotor system connected to the output shaft 33, and the brake protection cover 311 is provided with an electric brake 35 connected to the output shaft 33. A wire passage 3130 is provided on the main casing 313 and passes through the side wall of the main casing 313 along the axial direction of the main casing 313. The front end cover 312 is provided with a clearance hole 3120 corresponding to the wire passage 3130.

[0074] The wiring harness 32 includes a first cable 321 connected to the stator and rotor system, and a second cable 323 connected to the electric brake 35. The clearance hole 3120 is used to allow the first cable 321 to bend and pass through the wiring channel 3130, while the clearance hole 3120 is used to pass through the second cable 323.

[0075] If there are four wire passages 3130, one clearance hole 3120 can be provided. Once the installation direction of the main housing 313 is selected, one of the wire passages 3130 can be aligned with the clearance hole 3120.

[0076] An encoder is installed inside the main housing 313. The wiring harness 32 also includes a third cable 322 connected to the encoder. The clearance hole 3120 is used to avoid the third cable 322, so that the third cable 322 is bent and passed through the wiring channel 3130.

[0077] The front cover 312 is plate-shaped, and the cross-sectional shapes of the main housing 313 and the brake protection cover 311 match the shape of the front cover 312. The output shaft 33 passes through the front cover 312 and connects to the electric brake 35. Figure 7 , Figure 8 As shown, the connection structure of the main housing 313, the front cover 312 and the brake protection cover 311 is a conventional design, which will not be described in detail in this application.

[0078] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. An industrial door machine having a concealed wiring structure, characterized by: include: The motor (3) has a wire outlet hole (340) on its rear end cover (34). The end of the output shaft (33) of the motor (3) is located outside the rear end cover (34). The wire harness (32) of the motor (3) passes through the wire outlet hole (340). The wire harness (32) on one side of the rear end cover (34) is located inside the motor (3). A drive box (1) is provided with a power line outlet (10); The gearbox (2) is equipped with a transmission assembly that is connected to the output shaft (33). A wire passage cavity (22) is provided on one side of the gearbox (2). A connecting part (23) is provided on the other side of the gearbox (2) adjacent to the wire passage cavity (22). A wire passage hole (24) is provided on the connecting part (23) to connect the wire passage cavity (22) and the outside of the wire passage cavity (22). The wire harness (32) on the other side of the rear end cover (34) is sequentially passed through the wire passage hole (24), the wire passage cavity (22) and the power line outlet (10). The end of the wire harness (32) is connected to the drive box (1). The connecting part (23) is fixedly connected to the rear end cover (34) and connects the outlet hole (340) and the through hole (24). The gearbox (2) is fixedly connected to the drive box (1) and the wire harness (32) between the power line outlet (10) and the through hole (24) is sealed between the through cavity (22) and the drive box (1).

2. The industrial door operator with a hidden wiring structure as claimed in claim 1, wherein: One side of the wire passage cavity (22) is an open structure. The end face of the open structure is a plane that contacts the outer surface of the drive box (1). The end face is provided with a plurality of threaded holes, and fasteners for fixing the end face to the housing of the drive box (1) are provided in the threaded holes.

3. The industrial door operator with a hidden wiring structure as claimed in claim 1, wherein: The rear end cover (34) is installed at the end of the housing (31) of the motor (3). A wire passage (3130) for threading the wire harness (32) is provided on the side wall of the housing (31). The wire passage (3130) is connected to the wire outlet (340).

4. The industrial door operator with a hidden wiring structure as claimed in claim 3, wherein: The number of the threading channels (3130) is four, and they are evenly distributed around the axis of the outer shell (31). The cross-section of the outer shell (31) is square, and each threading channel (3130) corresponds to one side of the square.

5. The industrial door operator with a hidden wiring structure as claimed in claim 3, wherein: The outer casing (31) includes a main casing (313) and a brake protection cover (311). The main casing (313) and the brake protection cover (311) are connected by a front end cover (312). The main casing (313) is provided with a stator and rotor system connected to the output shaft (33). The brake protection cover (311) is provided with an electric brake (35) connected to the output shaft (33). The wiring channel (3130) is provided on the main casing (313) and passes through the side wall of the main casing (313) along the axial direction of the main casing (313). The front end cover (312) is provided with a clearance hole (3120) corresponding to the wiring channel (3130). The wiring harness (32) includes a first cable (321) connected to the stator and rotor system, and a second cable (323) connected to the electric brake (35). The clearance hole (3120) is used to avoid the first cable (321), so that the first cable (321) is bent and passed through the wiring channel (3130). At the same time, the clearance hole (3120) is used to pass through the second cable (323).

6. The industrial door operator with a hidden wiring structure as claimed in claim 5, wherein: An encoder is provided inside the main housing (313), and the wiring harness (32) also includes a third cable (322) connected to the encoder. The clearance hole (3120) is used to avoid the third cable (322), so that the third cable (322) is bent and passed through the wiring channel (3130).

7. The industrial door operator with a hidden wiring structure as claimed in claim 5, wherein: The front cover (312) is plate-shaped, and the cross-sectional shapes of the main housing (313) and the brake protection cover (311) are matched with the shape of the front cover (312).

8. The industrial gantry crane with concealed wiring structure as described in claim 1, characterized in that: The connecting part (23) includes an extension block (231) connected to the outside of the gearbox (2). A connecting plate (232) is provided at the outer end of the extension block (231). The wire hole (24) passes through both the extension block (231) and the connecting plate (232). The connecting plate (232) is fixedly connected to the rear end cover (34).

9. The industrial door operator with a hidden wiring structure as claimed in claim 1, wherein: A braking resistor (25) is provided inside the wire passage cavity (22), and the braking resistor (25) is electrically connected to the drive box (1).

10. The industrial door operator with a hidden wiring structure as claimed in claim 9, wherein: The gearbox (2) is made of aluminum alloy, and the gearbox (2) is integrally formed with the wire passage cavity (22).

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