A crown block power supply system and installation method

Abstract

The application discloses a crown block power receiving system and a mounting method, and relates to the technical field of crown block power receiving devices. The crown block power receiving system and the mounting method adopt telescopic rods as the support of the slide wire track, and are matched with proximity switches. When the brush holder is close to the proximity switch, the two telescopic rods adjacent to the proximity switch will be retracted from the mounting hole of the slide wire track. When the brush holder is close to the next proximity switch, the telescopic rod far away from the brush holder among the telescopic rods adjacent to the previous proximity switch will be extended into the mounting hole of the slide wire track. The support of the slide wire track can be maintained, and the surrounding power receiving device can temporarily pass through the telescopic rod, so that the running distance of the surrounding power receiving device on the slide wire track is lengthened.

Description

Technical Field

[0001] This invention relates to the field of overhead crane power receiving devices, specifically to an overhead crane power receiving system and its installation method. Background Technology

[0002] Overhead cranes are widely used in various industries and play a vital role in production. They are essential for large-scale and heavy-duty production. The effectiveness of the overhead crane's power receiving device is the primary guarantee of the crane's power, comparable to the importance of blood in the human body, serving as the crane's power source. Currently, small overhead crane power receiving devices are generally embedded or under-mounted, possessing a certain degree of reliability. However, due to their limited current carrying capacity, they are not suitable as power receiving devices for large overhead cranes in production workshops. The power receiving devices for large overhead cranes in production workshops are generally angle iron sliding rails or rail sliding rail devices. Their simple structure relies solely on the weight of the friction plates running above the sliding rail to supply power to the overhead crane. To ensure the effectiveness of its power supply, approximately three friction plates are generally required for the same phase line to adapt to the deformation of the sliding rail in the workshop and ensure effective contact between the friction plates and the sliding rail. However, this method not only results in high consumption of friction plates and cumbersome replacement, but also means that if any one of the friction plates fails, it will directly affect the stability of the overhead crane's power receiving device, easily causing production accidents.

[0003] In the prior art, in order to ensure the stability of the connection between the friction plate (brush) and the slide rail, the method of increasing friction is usually chosen to improve the stability of the connection (such as CN212289562U-rigid suspension busbar elastic positioning line). However, the increase of friction will also increase the friction between the friction plate (brush) and the slide rail, making it difficult for the friction plate to move. After a period of use, it will reduce the stability of the connection between the friction plate (brush) and the slide rail.

[0004] However, power receiving devices using a rotating clamp structure require a higher installation distance from the slide rails, especially when the length of the rotating clamp is greater than the distance between the slide rails. This can cause the rotating clamp to be blocked by the slide rail below (e.g., Figure 1 ). Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a crane power receiving system and installation method, solving the following technical problems:

[0007] 1. In the prior art, in order to ensure the stability of the connection between the friction plate (brush) and the slide rail, the friction is usually increased to improve the stability of the connection. However, the increase of friction will also increase the friction between the friction plate (brush) and the slide rail, making it difficult for the friction plate to move. After a period of use, it will reduce the stability of the connection between the friction plate (brush) and the slide rail.

[0008] 2. The power receiving device with a rotating clamp structure will increase the installation distance requirement of the slide rail, especially when the length of the rotating clamp is greater than the distance between the slide rails, which will cause the rotating clamp to be blocked by the slide rail below.

[0009] 3. Using an enclosed power receiving device will limit its application to shorter slide rails and make it unsuitable for longer slide rails.

[0010] (II) Technical Solution

[0011] To achieve the above objectives, the present invention provides the following technical solution: a multi-hinge anti-derailment overhead crane power receiving device, comprising a brush clamp for clamping onto a sliding rail, the brush clamp comprising a clamp body A and a clamp body B, the clamp body A being a U-shaped clamp body, one end of the clamp body A and the clamp body B being rotatably connected, a brush being disposed between the clamp body A and the clamp body B, the clamp body B comprising a clamp body C, both the clamp body B and the clamp body C being L-shaped clamp bodies, one end of the clamp body C being rotatably connected to the clamp body B, and the other end being connected to a locking structure.

[0012] Preferably, the rotation plane of the clamping body C does not overlap with the rotation plane of the clamping body B.

[0013] Preferably, a brush A is provided at the top of the inner side of the clamp A, and a brush B is provided at the bottom of the inner side of the clamp B.

[0014] Preferably, a spring A is provided between the brush A and the clamp A, and a spring B is provided between the clamp B and the brush B.

[0015] Preferably, the locking structure includes a hinge and a latch, one end of the hinge is connected to the clamping body C, and the other end has a hole that engages with the latch.

[0016] Preferably, there are multiple sliding rails arranged in parallel to each other, the distance between two adjacent sliding rails is a, the sum of the lengths of clamps B and C is greater than a, and the length of clamp C is less than a.

[0017] A method for installing a power receiving device for a multi-hinge anti-derailment overhead crane includes the following steps:

[0018] Step 1: Move the brush clip, which is in the open position, above the slide rail;

[0019] Step 2: Attach clamp A to the slide rail and make the brush of clamp A contact the slide rail;

[0020] Step 3: Rotate clamp B so that the end of clamp B is below the slide rail;

[0021] Step 4: Rotate clamp C so that the end of clamp C contacts the end of clamp A;

[0022] Step 5: Lock the latch structure to complete the installation.

[0023] A multi-hinge anti-detachment overhead crane power receiving system includes a multi-hinge anti-detachment overhead crane power receiving device. Proximity switches and telescopic rods are alternately arranged on the side of the sliding rail. The sliding rail is supported in the air by the telescopic rods arranged on its side. Mounting holes are opened at the positions of the sliding rail and the telescopic rods, and the telescopic section of the telescopic rod can be inserted into the mounting holes.

[0024] When the brush clip approaches the proximity switch, both telescopic rods adjacent to the proximity switch will retract from the mounting holes of the slide rail.

[0025] When the brush clip approaches the next proximity switch, the telescopic rod that is farther from the brush clip from the previous proximity switch will extend into the mounting hole of the sliding rail.

[0026] (III) Beneficial Effects

[0027] This invention provides a power receiving system for overhead cranes and its installation method. It has the following beneficial effects:

[0028] (1) The overhead crane power receiving system and installation method adopts a rotating clamp structure, which can effectively improve the connection stability with the sliding rail and get rid of the traditional method of increasing the friction between the brush and the sliding rail.

[0029] (2) The overhead crane power receiving system and installation method adopt a multi-hinge design, which can reduce the radius required for the rotating clamp to rotate and improve space utilization efficiency, especially when the distance between the sliding rails is small.

[0030] (3) The overhead crane power receiving system and installation method use telescopic rods as supports for the sliding rail. When the brush clip approaches the proximity switch, the two telescopic rods adjacent to the proximity switch will retract from the mounting holes of the sliding rail. When the brush clip approaches the next proximity switch, the telescopic rod that is farther away from the brush clip from the previous proximity switch will extend into the mounting hole of the sliding rail. This can maintain the support of the sliding rail and ensure that the enclosed power receiving device can temporarily pass through the telescopic rods, thus increasing the operating distance of the enclosed power receiving device on the sliding rail. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the installation process of a single-hinge clamp-type power receiving device.

[0032] Figure 2 This is a schematic diagram of the structure of the present invention in use;

[0033] Figure 3This is a bottom view of the structure of the present invention;

[0034] Figure 4 This is a bottom view of the structure of the present invention (with a notch on clamp A);

[0035] Figure 5 This is a schematic diagram of the locking mechanism;

[0036] Figure 6 This is the first installation step of the present invention;

[0037] Figure 7 This is step two of the installation process for the present invention;

[0038] Figure 8 This is step three of the installation process for the present invention;

[0039] Figure 9 This is the second installation step of the present invention, which features a notch structure.

[0040] Figure 10 This is a schematic diagram of the power receiving system of the present invention (the brush clip is not close to the first proximity switch);

[0041] Figure 11 This is a schematic diagram of the power receiving system of the present invention (the brush clip is close to the first proximity switch);

[0042] Figure 12 This is a schematic diagram of the power receiving system of the present invention (the brush clip is close to the second proximity switch);

[0043] Figure 13 This is a schematic diagram of the power receiving system of the present invention (the brush clip is close to the third proximity switch).

[0044] In the diagram: 1. Sliding rail; 11. Proximity switch; 12. Telescopic rod; 2. Clamp A; 21. Brush A; 22. Spring A; 23. Notch; 3. Clamp B; 4. Clamp C; 41. Brush B; 42. Spring B; 5. Rotating rod; 6. Connecting rod; 7. Shaft; 8. Locking structure; 81. Hinge; 82. Lock. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] Example 1: Single-hinge clamp-type power receiving device

[0047] like Figure 1A single-hinge clamp-type power receiving device includes a brush clamp, which comprises two clamping bodies rotatably connected to each other. When the two clamping bodies are separated, a slide rail 1 can be placed between the two clamping bodies. After the clamping bodies are closed, the installation of the power receiving device is completed.

[0048] In Example 1, it is important to note that the length of the clamp should not exceed the distance between two adjacent slide rails 1 during use. Otherwise, the rotation of the clamp will be blocked by the slide rail 1 below during installation, thus affecting the installation.

[0049] Example 2: Multi-hinge clamp-type power receiving device

[0050] A multi-hinge anti-derailment overhead crane power receiving device includes a brush clamp for clamping onto a sliding rail 1. The brush clamp includes a clamp body A2 and a clamp body B3. The clamp body A2 is a U-shaped clamp body. One end of the clamp body A2 and the clamp body B3 are rotatably connected. A brush is disposed between the clamp body A2 and the clamp body B3. The clamp body B3 includes a clamp body C4. Both the clamp body B3 and the clamp body C4 are L-shaped clamp bodies. One end of the clamp body C4 is rotatably connected to the clamp body B3, and the other end is connected to a locking structure 8.

[0051] in:

[0052] A brush A21 is installed on the top of the inner side of clamp A2, and a brush B41 is installed on the bottom of the inner side of clamp B3. A spring A22 is installed between brush A21 and clamp A2, and a spring B42 is installed between clamp B3 and brush B41. The lower end of spring B42 can be connected to clamp C4 and rotate with clamp C4.

[0053] The locking structure 8 includes a hinge 81 and a latch 82. One end of the hinge 81 is connected to the clamping body C4, and the other end has a hole that mates with the latch 82.

[0054] In this embodiment, in order to allow the clamping body C4 to have a larger rotation space and to improve a certain degree of storage capacity, the rotation plane of the clamping body C4 does not overlap with the rotation plane of the clamping body B3.

[0055] In this embodiment, if there are multiple sliding rails 1 arranged in parallel, then the following additional requirement applies: the distance between two adjacent sliding rails 1 is 'a'. If the sum of the lengths of clamps B3 and C4 is greater than 'a', the length of clamp C4 must be less than 'a'. Compared to Embodiment 1, in this embodiment, the sum of the lengths of clamps B3 and C4 is still greater than the distance between two adjacent sliding rails 1. However, due to the rotatable connection between clamp C4 and clamp B3, the rotatable installation is completed simply by ensuring that the length of clamp C4 is less than the distance between two adjacent sliding rails 1.

[0056] The installation steps in this embodiment are as follows:

[0057] Step 1: Move the brush clip, which is in the open position, above the slide rail 1;

[0058] Step 2: Attach clamp A2 to slide rail 1 and make the brush of clamp A2 contact slide rail 1;

[0059] Step 3: Rotate clamp B3 so that the end of clamp B3 is below slide rail 1;

[0060] Step 4: Rotate clamp C4 so that the end of clamp C4 contacts the end of clamp A2;

[0061] Step 5: Lock the latch structure 8 to complete the installation.

[0062] Example 3: For easy storage

[0063] like Figure 4 Based on embodiment 2, a notch 23 is provided on the front side of clamp A2 near clamp B3. The notch 23 is used to receive the end of clamp C4 (e.g., Figure 8 ).

[0064] Example 4: To increase the operating distance of the encircling power receiving device

[0065] In Examples 1-3, since an enclosed power receiving device is used, the surface requirements of the slide rail are high. Ideally, the slide rail should be long and smooth. However, in actual use, conventional slide rails are quite long and therefore require support at intervals via mounting structures. This prevents the enclosed power receiving device from passing through the support or mounting structure of the slide rail, limiting its application to shorter slide rails. For this reason, this embodiment is proposed. The purpose of this embodiment is to allow the support or mounting structure of the slide rail to temporarily disconnect from the slide rail 1 when the enclosed power receiving device approaches, allowing the device to pass through, and then reconnect to the slide rail 1 after passing through.

[0066] This embodiment is a power receiving system for a multi-hinge anti-detachment crane. The side of the slide rail 1 is alternately provided with a proximity switch 11 and a telescopic rod 12. The slide rail 1 is supported in the air by the telescopic rod 12 provided on its side. Mounting holes are opened at the corresponding positions of the slide rail 1 and the telescopic rod 12. The telescopic section of the telescopic rod 12 can be inserted into the mounting hole.

[0067] like Figures 10-13 When the brush clip approaches the proximity switch 11, the two telescopic rods 12 adjacent to the proximity switch 11 will retract from the mounting holes of the slide rail 1.

[0068] When the brush clip approaches the next proximity switch 11, the telescopic rod 12 that is farther away from the brush clip from the previous proximity switch 11 will extend into the mounting hole of the sliding rail 1.

[0069] in:

[0070] Example 4 can be implemented independently or in combination with Examples 1 to 3.

[0071] In actual use, this embodiment relies on a controller and a computer program. Existing trigger-type computer programs can achieve the technical effects to be achieved in this embodiment, so they will not be described in detail here.

[0072] In this embodiment, the telescopic rod 12 used should at least keep the part in contact with the slide rail 1 insulated. The telescopic rod 12 can be an electric, pneumatic or other type of telescopic rod.

[0073] It should be noted that in the description of the invention, the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the description of the structure of the invention shown in the accompanying drawings. They are only for the convenience of describing the invention 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 the invention.

[0074] The terms "first" and "second" in this technical solution are merely designations for corresponding structures that are identical or similar, or that perform similar functions. They do not represent an arrangement of the importance of these structures, nor do they imply any ranking, comparison of size, or other meaning.

[0075] Furthermore, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two structures. Those skilled in the art can understand the specific meaning of the above terms in this invention by considering the overall concept of the invention and the specific context of the solution.

Claims

1. A crane power receiving system, comprising a brush clamp and a sliding rail (1), wherein the brush clamp is used to clamp onto the sliding rail (1), characterized in that: The brush clip is a surround-type brush clip. The side of the slide rail (1) is alternately provided with a proximity switch (11) and a telescopic rod (12). The slide rail (1) is supported in the air by the telescopic rod (12) provided on its side. The slide rail (1) and the telescopic rod (12) are provided with mounting holes at the corresponding positions. The telescopic section of the telescopic rod (12) can be inserted into the mounting hole. When the brush clip approaches the proximity switch (11), the two telescopic rods (12) adjacent to the proximity switch (11) will retract from the mounting holes of the slide rail (1); When the brush clip approaches the next proximity switch (11), the telescopic rod (12) that is farther away from the brush clip from the previous proximity switch (11) will extend into the mounting hole of the sliding rail (1); The brush clamp includes a clamp body A (2) and a clamp body B (3). The clamp body A (2) is a U-shaped clamp body. One end of the clamp body A (2) and the clamp body B (3) are rotatably connected. A brush is provided between the clamp body A (2) and the clamp body B (3). The clamp body B (3) and the clamp body C (4) are both L-shaped clamp bodies. One end of the clamp body C (4) is rotatably connected to the clamp body B (3), and the other end is connected to a locking structure (8).

2. The overhead crane power receiving system according to claim 1, characterized in that: The rotation plane of clamp C (4) does not overlap with the rotation plane of clamp B (3).

3. The overhead crane power receiving system according to claim 1, characterized in that: The brush includes brush A (21) and brush B (41). Brush A (21) is provided on the top of the inner side of the clamp A (2), and brush B (41) is provided on the bottom of the inner side of the clamp B (3).

4. The overhead crane power receiving system according to claim 3, characterized in that: A spring A (22) is provided between the brush A (21) and the clamp A (2), and a spring B (42) is provided between the clamp B (3) and the brush B (41).

5. The overhead crane power receiving system according to claim 1, characterized in that: The locking structure (8) includes a hinge (81) and a latch (82). One end of the hinge (81) is connected to the clamping body C (4), and the other end has a hole that cooperates with the latch (82).

6. The overhead crane power receiving system according to claim 1, characterized in that: The number of the sliding rails (1) is multiple and they are arranged in parallel to each other. The distance between two adjacent sliding rails (1) is a. The sum of the lengths of the clamps B (3) and C (4) is greater than a, and the length of the clamp C (4) is less than a.

7. A method for installing a crane power receiving system as described in claim 1, characterized in that: Includes the following steps: Step 1: Move the brush clip in the open state above the slide rail (1); Step 2: Attach clamp A (2) to slide rail (1) and make the brush of clamp A (2) contact slide rail (1); Step 3: Rotate clamp B (3) so that the end of clamp B (3) is below the slide rail (1); Step 4: Rotate clamp C (4) so ​​that the end of clamp C (4) contacts the end of clamp A (2); Step 5: Lock the latch structure (8) to complete the installation.

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