An explosion-proof European-style wire rope electric hoist

Abstract

This utility model relates to the field of crane technology and discloses an explosion-proof European-style wire rope electric hoist, including a base, a winding reel rotatably connected inside the base, and a wire rope wound on the winding reel. It also includes: a guide plate slidably connected to the base along the length of the winding reel; a control component connected to the guide plate inside the base; and a lubrication wheel rotatably connected to the guide plate. One end of the wire rope extends out of the winding reel and passes through the guide plate. A limit groove is formed in the center of the lubrication wheel, and the end of the wire rope extending out of the winding reel slides into the limit groove. A lubrication unit is provided on one side of the guide plate, connected to the lubrication wheel, to apply lubricating oil to the surface of the lubrication wheel. This improves the lubrication and protection effect on the wire rope and reduces the friction between the wire rope and the guide plate.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, and in particular to an explosion-proof European-style wire rope electric hoist. Background Technology

[0002] European-style cranes are a type of bridge crane, characterized by their compact structure, low energy consumption, and light weight. They effectively limit the extreme values ​​of hook lifting and lowering by using guide plates and limit switches. However, because the winding reel has a cylindrical structure and the guide plate needs to move along the length of the reel, the wire rope is wound in a spiral shape on the reel. This causes the wire rope to easily rub and scratch against the guide plate during winding and unwinding. Over time, and under the pull of heavy objects, the wire rope is prone to breakage, thus presenting certain defects in use. Utility Model Content

[0003] The purpose of this utility model is to provide an explosion-proof European-style wire rope electric hoist to solve the problems existing in the prior art, thereby improving the lubrication and protection effect of the wire rope and reducing the friction between the wire rope and the guide plate.

[0004] To achieve the above objectives, this utility model provides the following solution: This utility model provides an explosion-proof European-style wire rope electric hoist, including a base, a winding reel rotatably connected inside the base, a wire rope wound on the winding reel, and further including:

[0005] A guide plate is slidably connected to the base along the length of the winding reel, and a control component connected to the guide plate is provided in the base.

[0006] A lubricating wheel is rotatably connected to the guide plate. One end of the wire rope extends out of the winding reel and passes through the guide plate. A limiting groove is formed in the center of the lubricating wheel. One end of the wire rope extending out of the winding reel slides into the limiting groove. A lubrication unit is provided on one side of the guide plate. The lubrication unit is connected to the lubricating wheel to apply lubricating oil to the surface of the lubricating wheel.

[0007] Preferably, the lubrication unit includes:

[0008] A receiving box is fixed to one side of the bottom end of the guide plate. The receiving box contains the lubricating oil. A through groove is opened in the center of the guide plate. The lubricating wheel is rotated in the through groove. A notch is opened on the side of the receiving box near the through groove. A partition is fixed between the notch and the inner cavity of the receiving box. The lubricating oil has a tendency to move towards the lubricating wheel.

[0009] Preferred options also include:

[0010] A flexible body is fixed to the inner wall of the bottom end of the notch. The bottom end of the lubricating wheel slides in contact with the flexible body. The flexible body extends toward the top of the partition and extends into the inner cavity. The flexible body can form a capillary effect along the direction from the receiving box to the through groove.

[0011] Preferably, the flexible body is a sponge block, and the portion of the flexible body extending into the inner cavity covers the top of the inner cavity.

[0012] Preferably, the guide plate has an arc-shaped structure, and the top end of the guide plate is slidably connected to one side of the top of the take-up reel, the bottom end of the guide plate extends downward at an angle toward the bottom end of the take-up reel, and the receiving box is arranged directly below the take-up reel.

[0013] Preferably, a gap is provided between the guide plate and the receiving box and the winding reel, and the diameter of the wire rope is smaller than the gap.

[0014] Preferably, the control element includes:

[0015] A servo motor is fixedly connected in the base. A groove is provided on the bottom surface of the base. The take-up reel is rotated in the groove. A sliding groove is provided on the inner wall of the top of the groove. The vertical downward projection of the sliding groove does not contact the take-up reel.

[0016] A screw is fitted into the slide groove, and a slider is threaded onto the screw. The slider slides into the slide groove, and the bottom end of the slider is fixedly connected to the guide plate. The output shaft of the servo motor is coaxially fixedly connected to one end of the screw.

[0017] Preferably, an electric motor is fixedly connected to one side of the base, the output shaft of the electric motor is coaxially fixedly connected to one end of the winding reel, and a flameout limiter is provided on the side wall of the base, the flameout limiter being communicatively connected to the electric motor.

[0018] The present invention discloses the following technical effects:

[0019] This invention utilizes a sliding guide plate connected to a base, with its sliding position controlled by a control component. This allows the guide plate to guide and rotate the wire rope as it is wound onto the reel, ensuring the rope is evenly spirally wound. During winding or unwinding, a lubricating wheel connected to the guide plate rotates and rolls in contact with the wire rope. A limiting groove in the center of the lubricating wheel limits and fixes the wire rope. Simultaneously, a lubrication unit on the guide plate applies lubricating oil to the lubricating wheel, ensuring sufficient lubrication of the wire rope during winding and unwinding. This reduces wear on the wire rope, improves lubrication and protection, and extends its service life. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a diagram showing the connection relationship between the take-up reel and the base in this utility model;

[0022] Figure 2 This is a diagram showing the positional relationship between the guide plate and the transmission structure in this utility model;

[0023] Figure 3 This is a diagram showing the positional relationship between the lubricating wheel and the winding reel in this utility model;

[0024] Figure 4 This is a diagram showing the connection relationship between the flexible body and the receiving box in this utility model;

[0025] Figure 5 This is a diagram showing the positional relationship between the notch and the inner cavity in this utility model;

[0026] Figure 6 This is a diagram showing the positional relationship between the housing and the winding reel in this utility model;

[0027] The components are as follows: 1. Base; 2. Rewinding reel; 3. Wire rope; 4. Guide plate; 5. Lubricating wheel; 6. Moving pulley; 7. Hook; 8. Receptacle box; 81. Inner cavity; 82. Notch; 9. Servo motor; 10. Partition; 11. Flexible body; 12. Screw; 13. Slider; 14. Electric motor; 15. Fire stop limiter; 16. Transmission structure; 17. Baffle. Detailed Implementation

[0028] 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.

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Reference Figures 1-6This utility model provides an explosion-proof European-style wire rope electric hoist, including a base 1, a winding reel 2 rotatably connected inside the base 1, a wire rope 3 wound on the winding reel 2, and further including:

[0031] The guide plate 4 is slidably connected to the base 1 along the length of the winding reel 2. The base 1 is provided with a control component connected to the guide plate 4.

[0032] The lubricating wheel 5 is rotatably connected to the guide plate 4. One end of the wire rope 3 extends out of the winding reel 2 and passes through the guide plate 4. A limit groove is opened in the center of the lubricating wheel 5. One end of the wire rope 3 extending out of the winding reel 2 slides into the limit groove. A lubrication unit is provided on one side of the guide plate 4. The lubrication unit is connected to the lubricating wheel 5 to apply lubricating oil to the surface of the lubricating wheel 5.

[0033] This invention utilizes a sliding guide plate 4 connected to a base 1, with the sliding position of the guide plate 4 controlled by a control component. This allows the guide plate 4 to guide the wire rope 3 as the winding reel 2 winds it, ensuring the wire rope 3 is evenly spirally wound onto the reel 2. During winding or unwinding, a lubrication wheel 5 connected to the guide plate 4 rotates and rolls in contact with the wire rope 3. A limiting groove in the center of the lubrication wheel 5 limits and fixes the wire rope 3. Simultaneously, a lubrication unit on the guide plate 4 applies lubricating oil to the lubrication wheel 5, ensuring sufficient lubrication of the wire rope 3 during winding and unwinding. This reduces wear on the wire rope 3, improves lubrication and protection, and extends its service life.

[0034] In this technical solution, a movable pulley 6 is movably connected below the winding reel 2. By extending one end of the wire rope 3 out of the winding reel 2, passing through the guide plate 4, the lubrication wheel 5 and the movable pulley 6 in sequence, and finally fixing the end to the side of the base 1 away from the winding reel 2, and by fixing the hook 7 at the bottom of the movable pulley 6, the heavy object is lifted by pulling the movable pulley 6 and the hook 7 when the winding reel 2 winds up the wire rope 3. This is existing technology and will not be described in detail.

[0035] Furthermore, the lubrication unit includes:

[0036] The receiving box 8 is fixed to one side of the bottom end of the guide plate 4. The receiving box 8 contains lubricating oil. A through groove is opened in the center of the guide plate 4. The lubricating wheel 5 is rotated in the through groove. A notch 82 is opened on the side of the receiving box 8 near the through groove. A partition 10 is fixed between the notch 82 and the inner cavity 81 of the receiving box 8. The lubricating oil has a tendency to move towards the lubricating wheel 5.

[0037] The lubricating oil is contained in the inner cavity 81 of the housing 8, and the inner cavity 81 and the notch 82 are separated by the partition 10. The lubricating oil moves toward the lubricating wheel 5 to lubricate the lubricating wheel 5, and the lubricating wheel 5 slides in contact with the wire rope 3 to achieve lubrication of the wire rope 3.

[0038] Furthermore, it also includes:

[0039] The flexible body 11 is fixed to the bottom inner wall of the notch 82. The bottom end of the lubricating wheel 5 slides in contact with the flexible body 11. The flexible body 11 extends toward the top of the partition 10 and extends into the inner cavity 81. The flexible body 11 can form a capillary action along the direction from the receiving box 8 to the through groove.

[0040] The lubricating oil is absorbed and transported to the notch 82 by the capillary action generated by the flexible body 11. The lubricating wheel 5 slides and contacts the flexible body 11 through the bottom end. As the wire rope 3 is wound up, the lubricating wheel 5 rotates and applies the lubricating oil to the wire rope 3.

[0041] Furthermore, the flexible body 11 is a sponge block, and the portion of the flexible body 11 that extends into the inner cavity 81 covers the top of the inner cavity 81.

[0042] By utilizing the capillary action of the sponge block and the flexible body 11 covering the top of the inner cavity 81 to prevent lubricating oil leakage, the flexible body 11 absorbs the lubricating oil in the inner cavity 81 and diffuses it to the notch 82 position to lubricate the lubricating wheel 5.

[0043] Furthermore, the guide plate 4 has an arc-shaped structure, and the top of the guide plate 4 is slidably connected to one side of the top of the take-up reel 2. The bottom of the guide plate 4 extends downward at an angle toward the bottom of the take-up reel 2, and the receiving box 8 is arranged directly below the take-up reel 2.

[0044] By setting the guide plate 4 into an arc-shaped structure and extending it along the outer arc of the winding reel 2, the receiving box 8 fixed at the bottom of the guide plate 4 is positioned directly below the winding reel 2, and the notch 82 of the receiving box 8 faces the through groove. Utilizing the arc-shaped protrusion of the guide plate 4, the lubrication wheel 5 rotating in the through groove extends out from the side of the winding reel 2, ensuring that when winding the wire rope 3, the wire rope 3 can effectively pass over the top of the lubrication wheel 5 before being wound back onto the winding reel 2, thus ensuring the lubrication effect.

[0045] Furthermore, a gap is provided between the guide plate 4 and the receiving box 8 and the winding reel 2, and the diameter of the wire rope 3 is smaller than the gap.

[0046] Avoid rubbing against the housing box 8 when winding up the wire rope 3.

[0047] Furthermore, the control components include:

[0048] The servo motor 9 is fixed in the base 1. The bottom surface of the base 1 has a groove. The take-up reel 2 is rotated in the groove. The inner wall of the top of the groove has a sliding groove. The projection of the sliding groove vertically downward does not contact the take-up reel 2.

[0049] The screw 12 is connected to the slide groove, and the slider 13 is threaded on the screw 12. The slider 13 slides in the slide groove, and the bottom end of the slider 13 is fixed to the guide plate 4. The output shaft of the servo motor 9 is coaxially fixed to one end of the screw 12.

[0050] The servo motor 9 can be a common stepper motor to drive the screw 12. The servo motor 9 drives the screw 12 to rotate, which in turn drives the slider 13 to slide along the slide groove. The slider 13 is fixed to the guide plate 4, thereby realizing the adjustment of the position of the guide plate 4.

[0051] Furthermore, an electric motor 14 is fixedly connected to one side of the base 1. The output shaft of the electric motor 14 is coaxially fixedly connected to one end of the winding reel 2. A flameout limiter 15 is provided on the side wall of the base 1. The flameout limiter 15 is communicatively connected to the electric motor 14.

[0052] Specifically, the trigger end of the flameout limit switch 15 is connected to a transmission structure 16, which slides on one side of the base 1. Two baffles 17 extending toward the winding reel 2 contact the wire guide plate 4 on both sides. As the wire guide plate 4 winds up the wire rope 3 and moves, the transmission structure 16 is activated when the wire guide plate 4 contacts the baffles 17, causing the transmission structure 16 to trigger the flameout limit switch 15 to cut off the electric motor 14, thereby limiting the height of the wire rope 3. This is a conventional technology and will not be described in detail.

[0053] This utility model provides a working principle for an explosion-proof European-style wire rope electric hoist:

[0054] The electric motor 14 drives the winding reel 2 to rotate and wind up the wire rope 3. The wire rope 3 is wound up and passes through the guide plate 4. The weight on the hook 7 pulls the wire rope 3, thereby embedding the wire rope 3 into the limiting groove and keeping the wire rope 3 and the lubrication wheel 5 relatively fixed. As the wire rope 3 is wound up, it slides into contact with the lubrication wheel 5 to lubricate the wire rope 3. Through the capillary action of the flexible body 11, the lubricating oil in the inner cavity 81 is delivered to the notch 82. During the rolling of the lubrication wheel 5, the lubricating oil is applied to the lubrication wheel 5 to maintain the lubrication effect on the wire rope 3 and enhance the lubrication and protection of the wire rope 3.

[0055] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0056] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. An explosion-proof European steel wire rope electric hoist, comprising a base (1), a winding disc (2) is rotatably connected in the base (1), and a steel wire rope (3) is wound on the winding disc (2), characterized in that, Also includes: The guide plate (4) is slidably connected to the base (1) along the length direction of the winding reel (2), and the base (1) is provided with a control component connected to the guide plate (4); A lubricating wheel (5) is rotatably connected to the guide plate (4). One end of the wire rope (3) extends out of the winding reel (2) and passes through the guide plate (4). A limiting groove is opened in the center of the lubricating wheel (5). One end of the wire rope (3) extending out of the winding reel (2) slides into the limiting groove. A lubrication unit is provided on one side of the guide plate (4). The lubrication unit is connected to the lubricating wheel (5) to apply lubricating oil to the surface of the lubricating wheel (5).

2. The explosion-proof European steel wire rope electric hoist according to claim 1, characterized in that, The lubrication unit includes: A receiving box (8) is fixed to one side of the bottom end of the guide plate (4). The receiving box (8) contains the lubricating oil. A through groove is opened in the center of the guide plate (4). The lubricating wheel (5) is rotated in the through groove. A notch (82) is opened on the side of the receiving box (8) near the through groove. A partition (10) is fixed between the notch (82) and the inner cavity (81) of the receiving box (8). The lubricating oil has a tendency to move towards the lubricating wheel (5).

3. The explosion-proof European-style wire rope electric hoist according to claim 2, characterized in that, Also includes: A flexible body (11) is fixed to the inner wall of the bottom end of the notch (82), the bottom end of the lubricating wheel (5) slides in contact with the flexible body (11), the flexible body (11) extends toward the top end of the partition (10), and the flexible body (11) extends into the inner cavity (81), the flexible body (11) can form a capillary action along the direction from the receiving box (8) to the through groove.

4. The explosion-proof European steel wire rope electric hoist according to claim 3, characterized in that: The flexible body (11) is a sponge block, and the portion of the flexible body (11) extending into the inner cavity (81) covers the top of the inner cavity (81).

5. The explosion-proof European steel wire rope electric hoist according to claim 2, characterized in that: The guide plate (4) has an arc-shaped structure, and the top end of the guide plate (4) is slidably connected to the top side of the take-up reel (2). The bottom end of the guide plate (4) extends downward at an angle toward the bottom end of the take-up reel (2). The receiving box (8) is arranged directly below the take-up reel (2).

6. The explosion-proof European steel wire rope electric hoist according to claim 2, characterized in that: A gap is provided between the guide plate (4) and the receiving box (8) and the winding reel (2), and the diameter of the wire rope (3) is smaller than the gap.

7. The explosion-proof European steel wire rope electric hoist according to claim 1, characterized in that, The control component includes: A servo motor (9) is fixed in the base (1). The base (1) has a groove on its bottom surface. The take-up reel (2) is rotated in the groove. A sliding groove is provided on the inner wall of the top of the groove. The projection of the sliding groove downwards does not contact the take-up reel (2). The screw (12) is connected to the slide groove. The screw (12) is threaded with a slider (13). The slider (13) slides with the slide groove. The bottom end of the slider (13) is fixed to the guide plate (4). The output shaft of the servo motor (9) is coaxially fixed to one end of the screw (12).

8. The explosion-proof European steel wire rope electric hoist according to claim 1, characterized in that: An electric motor (14) is fixedly connected to one side of the base (1). The output shaft of the electric motor (14) is coaxially fixedly connected to one end of the winding reel (2). A flameout limiter (15) is provided on the side wall of the base (1). The flameout limiter (15) is communicatively connected to the electric motor (14).

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