Electric hoist semi-gantry crane

Abstract

The utility model discloses a kind of electric hoist half door type cranes, it is related to crane field, including machine body and the electric hoist of machine body inside setting, the upper end of the machine body is equipped with electric sliding block by electric sliding rail, and the lower end of electric sliding block is fixedly installed with the upper end of electric hoist, the bottom of the machine body is provided with moving rail, and moving rail is provided with anti-derailing stable moving mechanism between machine body, the front and rear sides of the machine body are provided with cleaning protection mechanism.The electric hoist half door type crane, it is supported by limiting block at the lower end of machine body, the force of drive replaces gear and rack for traditional tire, can better limit the movement of machine body, and limiting wheel is used on the right side of machine body in the mode of rolling on the upper end of support plate, when electric hoist inside machine body hoists heavy article, the pressure of each part will be shared, can more stably hoist and convey goods.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, specifically to an electric hoist semi-gantry crane. Background Technology

[0002] Electric hoist semi-gantry cranes are a common type of industrial lifting equipment, mostly used for vertical and horizontal handling operations in factories and workshops. Its core component is the electric hoist, which drives the wire rope to wind and unwind on the trolley (beam) via an electric motor, completing lifting, lowering, and forward and backward movement. The unit is usually installed on one side of the crane's gantry frame, forming a "semi-gantry" type lifting partial structure, which is more compact and applicable compared to traditional full gantry or bridge cranes.

[0003] In existing technologies, track jamming is a common problem, which can cause electric hoist semi-gantry cranes to easily deviate from their tracks.

[0004] To overcome the above shortcomings, a Chinese patent (publication number CN217921115U) discloses an anti-rail-jamming electric hoist semi-gantry crane, comprising: a support platform, a main beam, a support column, an electric hoist, a hook, a moving beam, a track, a protective device, pulleys, and a buffer. The main beam is located above the support platform, and a support column is located on the right side of the main beam. An electric hoist is slidably connected to the bottom of the main beam, and a hook is located at the bottom of the electric hoist. Moving beams are located at the bottom left side of the main beam and the bottom of the support column. A protective device is provided between the outer side of the moving beam and the track. The technical problem solved by this utility model is that existing gantry cranes often experience rail jamming during use, which can lead to pulley misalignment and derailment accidents in severe cases.

[0005] While existing technologies can overcome the shortcomings mentioned above, other problems still exist during their operation. For example, when an electric hoist semi-gantry crane is moving a load, if the load is heavy, it can easily cause a large load on the electric hoist semi-gantry crane. A large load can easily cause excessive pressure on the internal parts of the electric hoist semi-gantry crane, resulting in damage and affecting the service life of the device. Utility Model Content

[0006] The purpose of this utility model is to provide an electric hoist semi-gantry crane to solve the problem mentioned in the background art that when an electric hoist semi-gantry crane is moving with a large load, the load is likely to cause excessive pressure damage to the internal parts of the electric hoist semi-gantry crane, thus affecting the service life of the device.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an electric hoist semi-gantry crane, comprising a body and an electric hoist installed inside the body, an electric slider mounted on the upper end of the body via an electric slide rail, and the lower end of the electric slider being fixedly installed with the upper end of the electric hoist, a moving rail being provided at the bottom of the body, and an anti-derailment stabilizing moving mechanism being provided between the moving rail and the body, and cleaning and protection mechanisms being provided on the front and rear sides of the body.

[0008] Furthermore, the right side protrusion of the machine body is slidably connected to the upper groove of the support plate, and a limit wheel is rotatably installed on the right side protrusion of the machine body, and the limit wheel is rotatably connected to the upper groove of the support plate.

[0009] Furthermore, the anti-derailment stabilizing movement mechanism is provided with a limit block, and the inner side of the limit block is fixedly installed on the lower end surface of the machine body, and the limit block is slidably connected to the groove inside the moving rail.

[0010] Furthermore, a gear is rotatably mounted inside the lower end of the machine body, and the left side of the gear is connected to the output end of the motor. The upper end of the motor is mounted on the left side of the machine body. A rack is fixedly mounted inside the moving rail, and the rack and the gear mesh with each other.

[0011] Furthermore, a protective plate is fixedly installed on the upper end of the machine body, and the protective plate is hook-shaped. Movable blocks are fixedly installed at the front and rear ends of the electric slider, and rolling wheels are rotatably installed inside the movable blocks. The lower end of the rolling wheels is rotatably connected to the groove of the protective plate.

[0012] Furthermore, the cleaning and protection mechanism is provided with a mounting plate, and the inner side of the mounting plate is fixedly installed on the surface of the machine body, and a guide rod is installed through the inside of the mounting plate.

[0013] Furthermore, a cleaning brush is fixedly installed at the lower end of the guide rod, and the lower end of the cleaning brush corresponds to the rack. A pressure spring is sleeved on the upper end of the guide rod, and the upper and lower ends of the pressure spring are fixedly installed between the guide rod and the mounting plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. The lower end of the machine body is supported by a limiting block. The driving force is replaced by gears and racks instead of traditional tires, which can better restrict the movement of the machine body. On the right side of the machine body, the limiting wheel rolls on the upper end of the support plate, which can reduce the pressure on various parts when the electric hoist inside the machine body lifts heavy items, and distribute the pressure evenly, so as to lift and transport goods more stably. Furthermore, the movable blocks set in front and behind the electric slider slide along the inside of the hook end of the protective plate, and with the setting of the rolling wheels, the sliding friction is transformed into rolling friction, which reduces wear and supports the electric slider. This can further improve the support force of the electric hoist during hoisting, and enable more stable lateral movement of the hoisted goods.

[0015] 2. When the machine moves, the cleaning brush automatically cleans impurities from the rack surface, preventing large impurities from affecting the meshing safety of the rack and gear and improving the service life of the gear and rack. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0017] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below.

[0018] Figure 3 This is a cross-sectional three-dimensional structural diagram of the moving track of this utility model.

[0019] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0020] Figure 5 This is a side sectional three-dimensional structural diagram of the moving track of this utility model.

[0021] Figure 6 This is a three-dimensional structural diagram of the electric slider of this utility model, viewed from below.

[0022] Figure 7 This is a cross-sectional three-dimensional structural diagram of the movable block of this utility model.

[0023] In the diagram: 1. Machine body; 2. Electric slider; 3. Electric hoist; 4. Limit wheel; 5. Support plate; 6. Moving rail; 7. Limit block; 8. Rack; 9. Gear; 10. Protective plate; 11. Movable block; 12. Rolling wheel; 13. Mounting plate; 14. Guide rod; 15. Cleaning brush; 16. Pressure spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: As Figures 1-7The technical solution shown is an electric hoist semi-gantry crane. To solve the problem of easy derailment during movement of the electric hoist semi-gantry crane, the following is disclosed: a body 1 and an electric hoist 3 installed inside the body 1. An electric slider 2 is installed on the upper end of the body 1 via an electric slide rail, and the lower end of the electric slider 2 is fixedly installed on the upper end of the electric hoist 3. A moving rail 6 is provided at the bottom of the body 1, and an anti-derailment stabilizing movement mechanism is provided between the moving rail 6 and the body 1. The right side protrusion of the body 1 is slidably connected to the upper groove of the support plate 5, and a limit wheel 4 is rotatably installed on the right side protrusion of the body 1. The limit wheel 4 is rolled in the upper groove of the support plate 5. The anti-derailment stabilizing movement mechanism is provided. A limiting block 7 is provided, and the inner side of the limiting block 7 is fixedly installed on the lower surface of the body 1. The limiting block 7 is slidably connected to the groove inside the moving rail 6. A gear 9 is rotatably installed inside the lower end of the body 1. The left side of the gear 9 is connected to the output end of the motor. The upper end of the motor is installed on the left side of the body 1. A rack 8 is fixedly installed inside the moving rail 6. The rack 8 and the gear 9 mesh with each other. A protective plate 10 is fixedly installed at the upper end of the body 1. The protective plate 10 is hook-shaped. Movable blocks 11 are fixedly installed at the front and rear ends of the electric slider 2. A rolling wheel 12 is rotatably installed inside the movable block 11. The lower end of the rolling wheel 12 is rotatably connected to the groove of the protective plate 10.

[0026] When the electric hoist semi-gantry crane needs to be used, start the motor on the left side of the machine body 1, such as... Figure 5 As shown, driven by the motor, the motor drives the gear 9 to rotate. The rotation of gear 9 allows it to move along the surface of the meshing rack 8, and under the support of the limiting block 7, the limiting block 7 slides along the internal groove of the moving rail 6. This enables the machine body 1 to move back and forth. The right side of the moving machine body 1 is slidably connected to the upper groove of the support plate 5. A limiting wheel 4 is also provided on the right side of the machine body 1. The limiting wheel 4 reduces the friction between the machine body 1 and the support plate 5, preventing excessive friction from affecting the device's operation. It converts sliding force into rolling force, thus allowing the machine body 1 to move more stably back and forth, reducing the risk of derailment. Simultaneously, as... Figure 6 and Figure 7 As shown, when it is necessary to adjust the left and right position of the electric hoist 3, the electric slider 2 connected to the electric slider 2 is started. Driven by electricity, the electric slider 2 can drive the electric hoist 3 to move left and right to adjust the position. During adjustment, the movable blocks 11 set in front and behind the electric slider 2 slide along the inside of the hook end of the protective plate 10. With the setting of the rolling wheel 12, the sliding friction is changed into rolling friction, which reduces wear and supports the electric slider 2. This prevents the electric hoist 3 from being damaged by excessive pressure when it lowers to lift heavy goods, thus improving the service life of the device and distributing the pressure evenly to avoid easy damage to the stressed position.

[0027] Example 2: Figures 1-5 The technical solution shown, based on Embodiment 1, discloses the following to address the problem that impurities can easily affect the stable use of the device: a cleaning and protection mechanism is provided on the front and rear sides of the body 1, the cleaning and protection mechanism is provided with a mounting plate 13, the inner side of the mounting plate 13 is fixedly installed on the surface of the body 1, and a guide rod 14 is installed through the inside of the mounting plate 13. A cleaning brush 15 is fixedly installed at the lower end of the guide rod 14, and the lower end of the cleaning brush 15 corresponds to the rack 8. A pressure spring 16 is sleeved on the upper end of the guide rod 14, and the upper and lower ends of the pressure spring 16 are fixedly installed between the guide rod 14 and the mounting plate 13.

[0028] As the machine body 1 moves back and forth, mounting plates 13 are provided at the front and rear of the bottom of the machine body 1. A guide rod 14 is installed through the inside of the mounting plate 13. The cleaning brush 15 at the bottom of the guide rod 14 is attached to the surface of the rack 8. Under the setting of the pressure spring 16, pressure can be applied to the cleaning brush 15, so that the cleaning brush 15 is attached to the rack 8. In this way, when the machine body 1 moves, it can automatically clean the impurities on the surface of the rack 8, avoid the presence of a lot of large impurities at the meshing point of the rack 8 and the gear 9, which would affect the safety of meshing and improve the service life of the gear 9 and the rack 8.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electric hoist semi-gantry crane, comprising a body (1) and an electric hoist (3) disposed inside the body (1), characterized in that: The upper end of the machine body (1) is equipped with an electric slider (2) via an electric slide rail, and the lower end of the electric slider (2) is fixedly installed with the upper end of the electric hoist (3). The bottom of the machine body (1) is provided with a moving rail (6), and an anti-derailment stabilizing moving mechanism is provided between the moving rail (6) and the machine body (1). Cleaning and protection mechanisms are provided on the front and rear sides of the machine body (1).

2. The electric hoist semi-gantry crane according to claim 1, characterized in that: The protrusion on the right side of the body (1) is slidably connected to the upper groove of the support plate (5), and a limiting wheel (4) is rotatably installed on the protrusion on the right side of the body (1), and the limiting wheel (4) is rotatably connected to the upper groove of the support plate (5).

3. The electric hoist semi-gantry crane according to claim 1, characterized in that: The anti-derailment stabilizing movement mechanism is provided with a limit block (7), and the inner side of the limit block (7) is fixedly installed on the lower end surface of the body (1), and the limit block (7) is slidably connected to the groove inside the moving rail (6).

4. The electric hoist semi-gantry crane according to claim 3, characterized in that: The lower end of the body (1) is rotatably mounted with a gear (9), and the left side of the gear (9) is connected to the output end of the motor. The upper end of the motor is mounted on the left side of the body (1). The moving rail (6) is fixedly mounted with a rack (8), and the rack (8) and the gear (9) mesh with each other.

5. The electric hoist semi-gantry crane according to claim 4, characterized in that: The upper end of the body (1) is fixedly installed with a protective plate (10), and the protective plate (10) is hook-shaped. The front and rear ends of the electric slider (2) are fixedly installed with movable blocks (11), and the movable blocks (11) are rotatably installed with rolling wheels (12), and the lower end of the rolling wheels (12) is rotatably connected to the groove of the protective plate (10).

6. The electric hoist semi-gantry crane according to claim 1, characterized in that: The cleaning and protection mechanism is provided with a mounting plate (13), and the inner side of the mounting plate (13) is fixedly installed on the surface of the body (1), and a guide rod (14) is installed through the inside of the mounting plate (13).

7. The electric hoist semi-gantry crane according to claim 6, characterized in that: A cleaning brush (15) is fixedly installed at the lower end of the guide rod (14), and the lower end of the cleaning brush (15) corresponds to the rack (8). A pressure spring (16) is sleeved on the upper end of the guide rod (14), and the upper and lower ends of the pressure spring (16) are fixedly installed between the guide rod (14) and the mounting plate (13).

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