Crawler-type aerial work platform vehicle motor

Abstract

The utility model discloses a caterpillar type overhead working platform car motor, including the shell and the outgoing line, the inner ring of outgoing line is equipped with the sealing mechanism, and outgoing line penetrates sealing mechanism and is electrically connected with the element inside the shell, the sealing mechanism includes two rubber fixed rings and the wire distribution board of setting between two rubber fixed rings, and the connecting portion of two rubber fixed rings is rotatably connected with the pivot no.

Description

Technical Field

[0001] This utility model belongs to the field of motor equipment technology, and in particular relates to a motor for tracked aerial work platforms. Background Technology

[0002] Tracked aerial work platforms are widely used in construction, outdoor equipment maintenance, mining operations and other scenarios. Their core drive and control rely on a special vehicle motor. This motor needs to operate for a long time in harsh working conditions with dust, humidity and high-frequency vibration. Therefore, the sealing reliability of the motor leads and the housing, the neatness of the cables and the ease of maintenance directly affect the stability of the platform operation.

[0003] Traditional tracked aerial work platform motors often use a single rubber sealing ring or an integrated sealing sleeve to seal the connection between the lead wire and the outer casing. Relying solely on the elasticity of the rubber itself for adhesion, these seals are prone to displacement and loosening under long-term vibration. This leads to an increase in the sealing gap, allowing dust and rainwater to enter the motor through the gap. This can cause the coil to become damp and short-circuited, and the bearings to accumulate dust and wear, ultimately leading to motor failure. Utility Model Content

[0004] This utility model addresses the problems in the prior art by proposing the following technical solution: A motor for a tracked aerial work platform includes a housing and a lead wire. The inner ring of the lead wire is fitted with a sealing mechanism, and the lead wire passes through the sealing mechanism and is electrically connected to components inside the housing. The sealing mechanism includes two rubber fixing rings and a dividing plate disposed between the two rubber fixing rings. A rotating shaft is rotatably connected to the connection of the two rubber fixing rings, and a positioning shaft is fixedly connected to one side of each of the two rubber fixing rings. A rotating shaft is fixedly connected to one of the rubber fixing rings. A locking plate is rotatably sleeved on the outer ring of the rotating shaft, and the locking plate has a groove that engages with the positioning shaft.

[0005] As a preferred embodiment of the above technical solution, the rotating shaft is provided with a torsion spring, and the two ends of the torsion spring are fixedly connected to a rubber retaining ring and a locking plate, respectively.

[0006] As a preferred embodiment of the above technical solution, the inner wall of the rubber fixing ring is provided with a slot, and the periphery of the dividing plate is fixedly connected with a plug that engages with the slot.

[0007] As a preferred embodiment of the above technical solution, the inner wall of the rubber fixing ring is provided with several wire grooves, and the outer periphery of the dividing plate is provided with several wire grooves. The wire grooves and wire grooves are combined to form a cable hole.

[0008] As a preferred embodiment of the above technical solution, sealing gaskets are fixedly connected to the inner walls of both cable tray one and cable tray two.

[0009] The beneficial effects of this utility model are as follows: 1. The double rubber fixing ring of this utility model is tightly engaged with the positioning shaft through the locking plate. With the continuous pre-tightening force of the torsion spring on the second rotating shaft, it can prevent the fixing ring from loosening due to vibration. The sealing gaskets on the inner walls of the wire groove one and the wire groove two will be squeezed and deformed when they are fastened, filling the gap between the lead wire and the cable hole, completely blocking rainwater and dust from entering the inner shell, preventing the coil from getting damp and short-circuiting, and preventing the bearing from accumulating dust and wearing. It greatly reduces the probability of motor failure caused by impurities entering, and ensures the stability of outdoor operation. 2. This utility model features a double rubber fixing ring that can be flexibly opened and closed around a rotating shaft. During assembly, there is no need to force the wire through, thus avoiding damage to the insulation layer of the lead wire. After inserting the cable, it can be locked in place. This design is more efficient than the traditional one-piece sealing sleeve. During maintenance, simply pry the locking plate to compress the torsion spring to release the fixation. After releasing, the torsion spring will automatically reset. Furthermore, the branch plate can be disassembled through the plug and slot, eliminating the need to disassemble the entire sealing mechanism. This allows for quick cleaning or replacement, making it especially suitable for emergency maintenance on construction sites, saving manpower and time costs. Attached Figure Description

[0010] Figure 1 The diagram shown is a structural schematic of the motor used in the tracked aerial work platform in this embodiment. Figure 2 The diagram shown is a structural schematic of the sealing mechanism in the embodiment.

[0011] Explanation of reference numerals in the attached figures: 10. Outer casing; 11. Lead wire; 20. Sealing mechanism; 21. Rubber retaining ring; 22. Rotating shaft one; 23. Positioning shaft; 24. Rotating shaft two; 25. Clamping plate; 26. Divider plate. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0013] Example like Figure 1 and Figure 2As shown, the motor for a tracked aerial work platform includes a housing 10 and a lead wire 11. The inner ring of the lead wire 11 is fitted with a sealing mechanism 20. The lead wire 11 passes through the sealing mechanism 20 and is electrically connected to the components inside the housing 10. The housing 10, as the "protective shell" of the motor, can isolate dust, rainwater, gravel and other impurities during outdoor operations, preventing internal coils, bearings and other precision components from being corroded or damaged by impact, and ensuring the stability of the motor's core structure. After the lead wire 11 passes through the sealing mechanism 20, it is electrically connected to the internal components, which not only realizes the power transmission and signal interaction between the motor and the external control system, but also prevents the "lead wire penetration point" from becoming a loophole for impurities to enter through the sealing mechanism 20. The sealing mechanism 20 includes two rubber fixing rings 21 and a dividing plate 26 disposed between the two rubber fixing rings 21. A rotating shaft 22 is rotatably connected at the connection of the two rubber fixing rings 21, and a positioning shaft 23 is fixedly connected to one side of each of the two rubber fixing rings 21. A rotating shaft 24 is fixedly connected to one of the rubber fixing rings 21. A locking plate 25 is rotatably sleeved on the outer ring of the rotating shaft 24. The locking plate 25 has a groove that engages with the positioning shaft 23.

[0014] Specifically, the two rubber retaining rings 21 are rotatably connected by a rotating shaft 22, which can be opened and closed like a "flip cover". This makes it easy to quickly put the lead wire 11 into the interior during motor assembly without forcibly threading the wire, thus avoiding damage to the insulation layer of the lead wire 11. After assembly, the two rubber retaining rings 21 are engaged with the positioning shaft 23 through the slot of the locking plate 25, which can tightly fasten the two rubber retaining rings 21, preventing the retaining rings from loosening or shifting due to motor vibration during operation, and ensuring the overall structural stability of the sealing mechanism 20. The splitter plate 26 is set between two rubber retaining rings 21, which can separate multiple lead wires 11 into different areas in advance, avoid the cables from getting tangled and squeezed in the retaining rings, reduce the risk of insulation layer damage caused by cable friction during subsequent use, and also lay the foundation for subsequent "precise wiring".

[0015] like Figure 2 As shown, the second rotating shaft 24 is fitted with a torsion spring, and the two ends of the torsion spring are fixedly connected to the rubber fixing ring 21 and the snap-fit ​​plate 25, respectively.

[0016] Specifically, when tracked aerial work platforms operate in construction sites, factories, and other scenarios, they will experience continuous vibrations due to uneven ground and track rotation. If the locking plate 25 is engaged solely by its own weight or by manual pressing, long-term vibrations can easily cause the engagement to loosen. The elastic force of the torsion spring can provide a continuous "pre-tightening force" to the locking plate 25, ensuring that the slot is always tightly engaged on the positioning shaft 23, preventing the fixing ring from loosening and ensuring that the sealing effect does not fail. When replacing the lead wire 11 during motor maintenance, simply manually pry the locking plate 25 to compress the torsion spring to release the engagement with the positioning shaft 23. After releasing your hand, the torsion spring will automatically drive the locking plate 25 to reset. There is no need to manually adjust the position of the locking plate 25. It can be directly engaged during the next assembly, reducing maintenance steps and improving maintenance efficiency.

[0017] like Figure 2 As shown, the inner wall of the rubber fixing ring 21 has a slot, and the outer periphery of the splitter plate 26 is fixedly connected with a plug that engages with the slot. The inner wall of the rubber fixing ring 21 has several wire grooves, and the outer periphery of the splitter plate 26 has several wire grooves. The wire grooves and wire grooves are combined to form a cable hole.

[0018] It should be noted that if the splitter plate 26 is only fixed by the compression of the rubber retaining ring 21, vibration can easily cause the splitter plate 26 to shift, which will make it impossible for the subsequent cable slot one and cable slot two to align, affecting the formation of the cable hole. The insertion and engagement of the slot and the plug can act like a "positioning pin" to firmly fix the splitter plate 26 in the center position of the two rubber retaining rings 21, ensuring that the splitter plate 26 will not shift left or right or up and down, and ensuring the alignment accuracy of the cable slots; Meanwhile, the size of the cable hole is matched with the diameter of the lead wire 11 (slight interference fit), which can firmly fix the lead wire 11 in the fixing ring, and prevent the lead wire 11 from being pulled by shaking when the motor is working or the platform moves (the pulling force can easily cause the solder joint between the lead wire 11 and the internal components to fall off, or to be damaged by friction with the edge of the fixing ring), thus ensuring the stability and service life of the cable connection.

[0019] like Figure 1 and Figure 2 As shown, sealing gaskets are fixedly connected to the inner walls of both cable tray one and cable tray two.

[0020] It should be noted that tracked aerial work platforms often operate outdoors in humid or dusty environments (such as construction sites and mines). If there is no sealing gasket on the inner wall of the cable tray, tiny gaps will exist between the cable and the tray, allowing rainwater and dust to easily seep into the motor. The sealing gasket (usually made of elastic rubber or silicone) is compressed and deformed when the cable tray 1 and cable tray 2 are closed, filling all the tiny gaps between the cable and the tray, forming a "flexible sealing layer." This completely blocks the path of impurities, protects the internal components of the motor from moisture and dust accumulation, and extends the outdoor service life of the motor.

[0021] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A motor for a tracked aerial work platform vehicle, characterized in that, It includes an outer shell (10) and a lead wire (11). The inner ring of the lead wire (11) is fitted with a sealing mechanism (20). The lead wire (11) passes through the sealing mechanism (20) and is electrically connected to the components inside the outer shell (10). The sealing mechanism (20) includes two rubber fixing rings (21) and a dividing plate (26) disposed between the two rubber fixing rings (21). A rotating shaft (22) is rotatably connected at the connection of the two rubber fixing rings (21), and a positioning shaft (23) is fixedly connected to one side of each of the two rubber fixing rings (21). A rotating shaft (24) is fixedly connected to one of the rubber fixing rings (21). A locking plate (25) is rotatably sleeved on the outer ring of the rotating shaft (24). The locking plate (25) has a slot that engages with the positioning shaft (23).

2. The motor for a tracked aerial work platform according to claim 1, characterized in that, The rotating shaft 2 (24) is fitted with a torsion spring, and the two ends of the torsion spring are fixedly connected to the rubber fixing ring (21) and the locking plate (25) respectively.

3. The motor for a tracked aerial work platform according to claim 1, characterized in that, The inner wall of the rubber fixing ring (21) is provided with a slot, and the outer periphery of the dividing plate (26) is fixedly connected with a plug that engages with the slot.

4. The motor for a tracked aerial work platform according to claim 1, characterized in that, The inner wall of the rubber fixing ring (21) is provided with several wire grooves, and the outer periphery of the dividing plate (26) is provided with several wire grooves. The wire grooves and wire grooves are combined to form a cable hole.

5. The motor for a tracked aerial work platform according to claim 4, characterized in that, Both the inner walls of cable tray one and cable tray two are fixedly connected with sealing gaskets.

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