A mobile double-container spreader locking opening and closing electric drive mechanism

Abstract

The utility model relates to a mobile double container hoist middle lock opening and closing electric drive mechanism belongs to double container hoist technical field. This mobile double container hoist middle lock opening and closing electric drive mechanism, include: motor shell, both ends of motor shell all are installed with end cover, control mechanism can improve the control mechanism setting in the inner wall of motor shell of double container hoist middle part turn -out stability and efficiency, the rotor in motor shell can drive the rotation of the shaft and drive nut, and the nut is embedded in the shaft through a plurality of clamping blocks of outer wall, conveniently drive the nut, and the nut is cooperated with the lead screw and carries out linear drive to the lead screw, reduces the impact load that the device received, and the one end of lead screw is cooperated with the limiting ring and can position guide to the lead screw, prevents the lead screw with the nut and rotates, and the mounting groove of lead screw one end can be connected with the shaft joint and can be connected, can stably control the middle part turn -out of mobile double box hoist and improve the efficiency of device.

Description

Technical Field

[0001] This utility model relates to the field of double container spreader technology, and in particular to an electric drive mechanism for locking and unlocking a mobile double container spreader. Background Technology

[0002] A container spreader is a specialized spreader for loading and unloading containers. It connects to the top corner fittings of the container via turnlocks at the four corners of its end beam. The operator controls the opening and closing of the turnlocks to carry out container loading and unloading operations. The container spreader can be inserted into the corner fitting holes on the top of the container via a central pivot pin to ensure the stability of the spreader and the container. An electric drive unit is required to drive the pivot pin during operation.

[0003] Most existing mobile double-box spreader central pivot mechanisms are driven by hydraulic cylinders, with a few using electric motors. Hydraulic cylinder drives are prone to problems such as oil leakage and significant susceptibility to ambient temperature fluctuations, resulting in a high failure rate and high energy consumption. Electric motor drives are typically powered by independent geared motors or linear motion motors. The motor transmits power to the pivot assembly via sprocket and chain drive or crank-connecting rod mechanism to achieve the pivot's rotational locking function. However, sprocket and chain drive or crank-connecting rod mechanisms are susceptible to impact loads, affecting the device's efficiency. Furthermore, they hinder stable and efficient control of the central pivot of the mobile double-box spreader, reducing its overall effectiveness. Utility Model Content

[0004] Therefore, it is necessary to provide an electric drive mechanism for opening and closing the central locking pin of a mobile double container spreader, which addresses the problem of inconvenience in achieving stable and efficient control of the central pivot pin.

[0005] The device includes a motor housing with end caps installed at both ends; a control mechanism, which improves the stability and efficiency of the central pivot pin of the double container spreader, is located on the inner wall of the motor housing; wherein the control mechanism includes a rotor installed in the middle of the inner wall of the motor housing, a rotating shaft rotatably connected to the inner wall of the rotor, a nut installed on the inner wall of the rotating shaft, a lead screw rotatably connected to the inner wall of the rotating shaft, the lead screw being threadedly connected to the nut, and a pin joint being engaged at one end of the lead screw.

[0006] In one embodiment, the control mechanism further includes a mounting groove formed at one end of the lead screw, the mounting groove engaging with one end of a pin connector, and the pin connector being snapped onto one end of the lead screw via the mounting groove.

[0007] In one embodiment, a limiting ring is fixedly connected to the inner wall of the end cap, and the limiting ring is threadedly connected to the lead screw.

[0008] In one embodiment, the outer wall of the nut is fixedly connected with several evenly arranged locking blocks, which engage with the inner wall of the rotating shaft.

[0009] In one embodiment, a number of evenly arranged fixing screws are installed on one end of the end cover, and one end of the fixing screws passes through the end cover and is threadedly connected to the motor housing.

[0010] In one embodiment, a mounting plate is snapped onto one end of the outer wall of the lead screw, and the mounting plate is mounted on one end of the end cap.

[0011] In one embodiment, a reinforcing plate is fitted onto the outer wall of the mounting plate, and the reinforcing plate is disposed at one end of the end cap.

[0012] In one embodiment, a number of evenly arranged fixing bolts are installed at one end of the reinforcing plate, and one end of the fixing bolts passes through the reinforcing plate and is threadedly connected to the end cap.

[0013] Beneficial effects

[0014] 1. The electric drive mechanism for opening and closing the central lock in the aforementioned mobile double container spreader has a rotor inside the motor housing that drives the rotating shaft to rotate and move the nut after being energized. The nut is embedded in the rotating shaft through multiple locking blocks on the outer wall, facilitating the driving of the nut. The nut cooperates with the lead screw to drive the lead screw linearly, reducing the impact load on the device. One end of the lead screw cooperates with the limit ring to position and guide the lead screw, preventing the lead screw from rotating with the nut. The mounting groove at one end of the lead screw can be engaged with the rotating shaft joint, connecting to the central lock shaft box to rotate the central lock pin shaft 90°, realizing the opening and closing of the central lock. The end cover can be installed at both ends of the motor housing through multiple fixing screws, which can stably control the central rotating pin of the mobile double container spreader and improve the efficiency of the device.

[0015] 2. The mounting plate at one end of the end cap and the lead screw penetrate the outer wall of the end cap and fit together, which can reinforce and protect the lead screw and absorb the impact force on the lead screw. The fixing plate can be installed at one end of the end cap by multiple fixing bolts, which cooperate with the mounting plate to protect the lead screw. The hexagonal groove at one end of the fixing bolt facilitates the driving of the fixing bolt and can improve the stability of the central pivot pin of the mobile double box lifting device. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the drive mechanism structure of this utility model;

[0019] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a partial structural diagram of the drive mechanism of this utility model;

[0021] Figure 5 This is a schematic diagram of the buffer structure of the drive mechanism of this utility model.

[0022] Figure label:

[0023] 100. Motor housing; 200. End cover; 300. Control mechanism; 310. Rotor; 311. Shaft; 320. Nut; 330. Lead screw; 340. Pin joint; 350. Mounting groove; 360. Limiting ring; 370. Clamping block; 371. Fixing screw; 380. Mounting plate; 381. Reinforcing plate; 382. Fixing bolt. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] The following is combined with Figure 1 one Figure 5 This invention describes the electric drive mechanism for locking and unlocking of a mobile double container spreader.

[0026] In one embodiment, a mobile double container spreader's central locking and unlocking electric drive mechanism includes a motor housing 100, with end caps 200 installed at both ends of the motor housing 100; and a control mechanism 300, which can improve the stability and efficiency of the central pivot pin of the double container spreader, is disposed on the inner wall of the motor housing 100; wherein, the control mechanism 300 includes a rotor 310 installed in the middle of the inner wall of the motor housing 100, a rotating shaft 311 rotatably connected to the inner wall of the rotor 310, a nut 320 installed on the inner wall of the rotating shaft 311, a lead screw 330 rotatably connected to the inner wall of the rotating shaft 311, the lead screw 330 being threadedly connected to the nut 320, and a pin joint 340 being engaged at one end of the lead screw 330.

[0027] It should be noted that the double container spreader of model "QTH45L" consists of a telescopic spreader and an independent locking mechanism, and the length is adjusted by hydraulically driving the telescopic chain or hydraulic cylinder.

[0028] Main frame: Uses a standard spreader frame, capable of supporting the weight of two containers;

[0029] Telescopic mechanism: The length can be adjusted by driving a chain or cylinder through hydraulic components, which can adjust the position of the pivot pin in the double container spreader;

[0030] Locking pin components: Each side of the container is equipped with an independent opening and closing locking pin mechanism to ensure synchronized operation;

[0031] When driving the pivot pin in the mobile double container spreader, the control mechanism 300 drives the rotating shaft 311 to rotate the nut 320 after the rotor 310 is energized. This drives the lead screw 330 to move the pin joint 340 in a linear motion, connecting the center lock shaft box and rotating the center lock pin 90° to open and close the center lock. The limit ring 360 can guide and position the lead screw 330. The mounting plate 380 and the reinforcement plate 381 work together to buffer and protect the lead screw 330, improving its impact resistance. This improves the efficiency and stability of the pivot pin in the middle of the double container spreader without affecting the normal use of the mobile double container spreader.

[0032] like Figure 2 and Figure 3 As shown, the control mechanism 300 also includes a mounting groove 350 at one end of the lead screw 330. The mounting groove 350 is engaged with one end of the pin joint 340. The pin joint 340 is snapped onto one end of the lead screw 330 through the mounting groove 350. A limit ring 360 is fixedly connected to the inner wall of the end cover 200. The limit ring 360 is threadedly connected to the lead screw 330. Several evenly arranged locking blocks 370 are fixedly connected to the outer wall of the nut 320. The locking blocks 370 are engaged with the inner wall of the rotating shaft 311. Several evenly arranged fixing screws 371 are installed at one end of the end cover 200. One end of the fixing screw 371 passes through the end cover 200 and is threadedly connected to the motor housing 100.

[0033] In this embodiment, after the rotor 310 inside the motor housing 100 is energized, the rotor 310 can drive the rotating shaft 311 to rotate. The rotating shaft 311 can drive the nut 320 to rotate through multiple locking blocks 370. The nut 320 is threadedly connected to the lead screw 330 to drive the lead screw 330. One end of the lead screw 330 is threadedly connected to the limiting ring 360 to guide and support the lead screw 330, which can make the lead screw 330 run in a straight line. The pin joint 340 is locked to one end of the lead screw 330 through the mounting groove 350, which can stably and efficiently control the middle pivot of the double container.

[0034] like Figure 4 and Figure 5 As shown, a mounting plate 380 is snapped onto one end of the outer wall of the lead screw 330. The mounting plate 380 is installed on one end of the end cover 200. A reinforcing plate 381 is sleeved on the outer wall of the mounting plate 380. The reinforcing plate 381 is located at one end of the end cover 200. Several evenly arranged fixing bolts 382 are installed on one end of the reinforcing plate 381. One end of the fixing bolts 382 passes through the reinforcing plate 381 and is threadedly connected to the end cover 200.

[0035] In this embodiment, when the double container central transfer pin is electrically driven, the mounting plate 380 is snapped onto the lead screw 330 to protect and reinforce the lead screw 330. The reinforcement plate 381 can be threadedly connected to the end cover 200 through multiple fixing bolts 382 to fix the reinforcement plate 381. This can buffer the impact force on the lead screw 330, improve the stability of the double container central transfer pin, and improve the effectiveness of the device.

[0036] Working principle: The rotor 310 and the shaft 311 are installed on the inner wall of the motor housing 100. The nut 320 is engaged with the inner wall of the shaft 311 via a locking block 370. The lead screw 330 is installed on the inner wall of the shaft 311 and the nut 320. One end of each of the multiple fixing screws 371 passes through two end covers 200 and is threadedly connected to the motor housing 100. One end of the pin joint 340 is aligned with the mounting groove 350 at one end of the lead screw 330. The pin joint 340 and the mounting groove 350 are engaged with each other. The disc 380 is snapped onto one end of the lead screw 330. One end of the fixing bolt 382 passes through the reinforcing disc 381 and is threadedly connected to the end cover 200 to fix the reinforcing disc 381. After the motor is powered on, it drives the rotor 310 to drive the rotating shaft 311 to rotate. The rotating shaft 311 drives the nut 320 to be threadedly connected to the lead screw 330. One end of the lead screw 330 is then threadedly connected to the limit ring 360, which can make the lead screw 330 move linearly to one end. The connection to the central locking shaft box causes the central locking pin to rotate 90°, realizing the opening and closing of the central lock.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended 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 will 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. An electric drive mechanism for opening and closing a lock in a mobile double container spreader, characterized in that, include: A motor housing (100), with end caps (200) installed at both ends of the motor housing (100); The control mechanism (300), which can improve the stability and efficiency of the central pivot of the double container spreader, is located on the inner wall of the motor housing (100); The control mechanism (300) includes a rotor (310) installed in the middle of the inner wall of the motor housing (100). The inner wall of the rotor (310) is rotatably connected to a shaft (311). A nut (320) is installed on the inner wall of the shaft (311). A lead screw (330) is rotatably connected to the inner wall of the shaft (311). The lead screw (330) is threadedly connected to the nut (320). One end of the lead screw (330) is engaged with a pin joint (340).

2. The electric drive mechanism for locking and unlocking of the mobile double container spreader according to claim 1, characterized in that, The control mechanism (300) further includes a mounting groove (350) opened at one end of the lead screw (330), the mounting groove (350) and one end of the pin joint (340) are engaged with each other, and the pin joint (340) is snapped onto one end of the lead screw (330) through the mounting groove (350).

3. The electric drive mechanism for locking and unlocking of the mobile double container spreader according to claim 1, characterized in that, A limiting ring (360) is fixedly connected to the inner wall of the end cap (200), and the limiting ring (360) is threadedly connected to the lead screw (330).

4. The electric drive mechanism for locking and unlocking of the mobile double container spreader according to claim 1, characterized in that, The outer wall of the nut (320) is fixedly connected with several evenly arranged locking blocks (370), which are engaged with the inner wall of the rotating shaft (311).

5. The electric drive mechanism for locking and unlocking of the mobile double container spreader according to claim 1, characterized in that, Each end of the end cover (200) is equipped with several evenly arranged fixing screws (371), one end of which passes through the end cover (200) and is threadedly connected to the motor housing (100).

6. The electric drive mechanism for locking and unlocking of the mobile double container spreader according to claim 1, characterized in that, One end of the outer wall of the lead screw (330) is engaged with a mounting plate (380), which is mounted on one end of the end cover (200).

7. The electric drive mechanism for locking and unlocking of the mobile double container spreader according to claim 6, characterized in that, The outer wall of the mounting plate (380) is fitted with a reinforcing plate (381), which is located at one end of the end cap (200).

8. The electric drive mechanism for locking and unlocking of the mobile double container spreader according to claim 7, characterized in that, A number of evenly arranged fixing bolts (382) are installed at one end of the reinforcing plate (381), and one end of the fixing bolts (382) passes through the reinforcing plate (381) and is threadedly connected to the end cap (200).

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