Encoder installation protection device and rail-mounted gantry crane

Abstract

The encoder installation protection device comprises an installation seat used for being fixedly installed at the position of a wheel of a cart mechanism, the installation seat comprises a bottom plate, a vertically-arranged supporting frame is detachably installed on the bottom plate, an installation hole is formed in the supporting frame, the diameter of the installation hole is the same as that of a rotating shaft of an encoder, and the installation seat is fixedly installed on the bottom plate. A protective shell is detachably arranged on the bottom plate, the supporting frame is located in the protective shell, the lower portion of a shell body of the protective shell is open, one side of the shell body is open, the encoder can be supported and limited through the installation base so that the installation stability of the encoder at the position of a wheel can be improved, the encoder can be prevented from falling off, the encoder can be covered and protected through the protective shell, and the service life of the encoder is prolonged. And the opening at the lower part of the shell body of the protective shell can be used for protecting and facilitating the extension of the cable at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to an encoder installation protection device and a rail-type gantry crane. Background Art

[0002] A rail-mounted gantry crane is a type of lifting equipment specifically used for loading, unloading, transporting, and stacking containers. The trolley mechanism is an important component of a rail-mounted gantry crane, which is responsible for driving the crane to move on the track. The trolley mechanism usually consists of wheels, a drive device, a braking device, etc. The wheels are installed under or on the side of the crane's main beam and contact the track to realize the movement of the crane.

[0003] When a rail-mounted gantry crane is in use, it is necessary to locate the moving position of the trolley mechanism. Currently, newly manufactured rail-mounted gantry cranes are equipped with encoders to detect the position of the trolley mechanism in real time. The encoder is usually installed on the output shaft of the drive device. By measuring the rotation angle and speed of the shaft, the mechanical motion is converted into an electrical signal output, thereby achieving precise control of the crane trolley mechanism.

[0004] However, the old cranes that have been purchased and used on site are not equipped with encoders. Encoders need to be installed to upgrade the cranes. In order to reduce the difficulty of installing the encoders, the encoders can be fixed on the trolley wheels. At this time, the encoder's shaft must be coaxial with the wheel to ensure synchronous rotation of the trolley wheel and the encoder. Since the encoder is fixed to the wheel only through one end of the shaft, the installation of the encoder is unstable and it is very easy to fall off the wheel. In addition, the encoder on the trolley wheel is easily damaged by rain and snow. Utility Model Content

[0005] In order to solve the technical problems in the above-mentioned background technology that when the old crane is modified and upgraded, the encoder is difficult to be stably fixed and installed at the center position of the trolley wheel, and the encoder on the trolley wheel cannot be effectively protected, the utility model provides an encoder installation protection device and a rail-mounted gantry crane.

[0006] The technical solution of this utility model is as follows:

[0007] The utility model provides an encoder installation and protection device, comprising: a mounting base for fixed installation on the wheel of a trolley mechanism, the mounting base comprising a bottom plate, a vertically arranged support frame detachably mounted on the bottom plate, a mounting hole being provided on the support frame, a protective shell being detachably provided on the bottom plate, the support frame being located in the protective shell, the lower shell portion of the protective shell being open, and one side of the shell being open, the mounting base can be used to support and limit the encoder, so as to improve the installation stability of the encoder at the wheel and avoid the encoder from falling off, the provision of the protective shell can cover and protect the encoder to prevent erosion by rain and snow, and the lower shell portion opening of the protective shell can facilitate the extension of the cable while providing protection.

[0008] Preferably, the support frame includes a horizontal plate and a vertical plate, the horizontal plate is detachably connected to the bottom plate, the vertical plate is fixedly set on the horizontal plate, and the mounting hole is set on the vertical plate. The position of the encoder can be limited by the vertical plate to ensure the coaxial setting of the encoder and the wheel.

[0009] Preferably, a flange is provided at the lower portion of the shell to facilitate connection between the shell and the base plate, and the flange is detachably connected to the base plate by bolts.

[0010] Preferably, the lower opening of the housing is an oblique opening, which facilitates the connection and outward extension of the cable connected to the encoder.

[0011] Preferably, the lower opening of the shell is arranged obliquely upward in a direction away from the open side surface of the shell.

[0012] The utility model provides a rail-type gantry crane, comprising: an encoder installation protection device and a trolley mechanism, the wheels of the trolley mechanism are rotatably installed at the lower part of the support leg, the mounting seat is fixedly installed on the outer wall of the lower part of the support leg, the rotating shaft of the encoder is inserted into the mounting hole and fixedly connected to the axle of the wheel, and the protective shell is snap-fitted and installed on the mounting seat. When an old rail-type gantry crane is modified and upgraded, the encoder installation protection device can be used to support and limit the encoder by using the mounting seat, thereby improving the installation stability and positioning accuracy of the encoder and avoiding the encoder from falling off. At the same time, the protective shell is used to cover and protect the encoder to avoid the erosion of the encoder by rain and snow, thereby facilitating the modification and upgrading of the old crane.

[0013] Preferably, the mounting hole on the support frame is coaxially arranged with the wheel, so as to facilitate the coaxial connection between the encoder shaft and the wheel.

[0014] It can be seen from the above technical solutions that the advantages of the present invention are:

[0015] 1. The mounting base is fixed at the wheel, and the mounting base can be used to support and limit the encoder to improve the installation stability of the encoder at the wheel and prevent the encoder from falling off. The setting of the protective shell can cover and protect the encoder to prevent erosion by rain and snow. The opening at the bottom of the protective shell can provide protection while facilitating the extension of the cable.

[0016] 2. When renovating and upgrading old rail-mounted gantry cranes, the encoder installation protection device can be used to support and limit the encoder using the mounting base, thereby improving the installation stability and positioning accuracy of the encoder and preventing the encoder from falling off. At the same time, the encoder can be covered and protected with a protective shell to prevent the encoder from being corroded by rain and snow, facilitating the renovation and upgrading of old cranes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic structural diagram of a mounting base according to one or more embodiments of the present invention;

[0019] Figure 2 This is a schematic structural diagram of a protective case according to one or more embodiments of the present invention;

[0020] Figure 3 This is a partially enlarged structural diagram of an encoder mounting protection device in use according to one or more embodiments of the present invention (showing the protective housing);

[0021] Figure 4 This is a partially enlarged structural diagram of an encoder mounting protection device according to one or more embodiments of the present invention in use (protective housing not shown);

[0022] The components represented by the reference numerals in the figure are:

[0023] 1. Mounting base; 11. Base plate; 12. Support frame; 13. Bolt hole; 14. Mounting hole;

[0024] 2. Protective shell; 21. Shell; 22. Flanged edge;

[0025] 3. Encoder; 4. Support legs; 5. Wheels. DETAILED DESCRIPTION

[0026] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent.

[0027] Example 1

[0028] In a typical embodiment of the present invention, Figure 1-Figure 2 As shown, an encoder installation and protection device is proposed, including: a mounting base 1 and a protective shell 2, wherein the mounting base 1 is used to be fixedly mounted on the lower outer wall of the support leg 4 of the trolley mechanism for installation support of the encoder 3, and the rotating shaft of the encoder 3 can pass through the lower outer wall of the support leg 4 and be fixedly connected to the center of the wheel 5, and the protective shell 2 can be detachably mounted on the mounting base 1 to cover and protect the encoder 3.

[0029] like Figure 1 As shown, the mounting base 1 includes a base plate 11 and a vertically arranged support frame 12. The base plate 11 is a plate-like structure. A plurality of bolt holes 13 are provided in the middle and on both sides of the base plate 11. The support frame 12 is detachably mounted in the middle of the base plate 11 by bolts, and the protective shell 2 is detachably connected to both sides of the base plate 11 by bolts.

[0030] The cross section of the support frame 12 is T-shaped. The support frame 12 includes a horizontal plate and a vertical plate. The horizontal plate is detachably connected to the base plate 11, and the vertical plate is fixedly set on the horizontal plate. A mounting hole 14 is opened on the vertical plate for inserting the rotating shaft of the encoder 3. The rotating shaft of the encoder 3 is rotatably set in the mounting hole 14 through the bearing, thereby realizing support and limitation of the encoder 3 and improving the installation stability of the encoder 3.

[0031] like Figure 2 As shown, the protective shell 2 includes a shell body 21, which is an open structure at the bottom, and one side surface of the shell body 21 (the side surface close to the support leg 4 in actual use) is open, the shell body 21 is snapped on the base plate 11, and the support frame 12 is placed in the shell body 21, so as to cover and protect the support frame 12 and the encoder 3 supported thereon through the shell body 21, and a flange 22 is provided at the bottom of the shell body 21, and a plurality of bolt holes 13 are provided on the flange 22 for connecting to the base plate 11 by bolts, and a cable extension port is provided between the lower part of the shell body 21 and the base plate 11 to allow the cable of the encoder 3 to extend.

[0032] The lower opening of the shell 21 is an oblique opening. Specifically, the lower opening of the shell 21 is arranged obliquely upward in a direction away from its open side (which can also be understood as away from the wheel 5 in actual use). The oblique opening is a cable extension port to facilitate the connection and outward extension of the cable connected to the encoder 3.

[0033] Example 2

[0034] In another typical embodiment of the present invention, Figure 3-Figure 4 As shown, a rail-type gantry crane is proposed, including the encoder installation protection device mentioned in Example 1, and the rail-type gantry crane also includes: a trolley mechanism, the wheel 5 of the trolley mechanism is rotatably mounted on the lower part of the support leg 4 through a bearing, the axle of the wheel 5 is connected to the reducer, the mounting seat 1 is fixedly mounted on the outer wall of the lower part of the support leg 4, the mounting hole 14 on the support frame 12 is coaxially arranged with the wheel 5, the rotating shaft of the encoder 3 is inserted into the mounting hole 14, and at the same time, the rotating shaft of the encoder 3 is fixedly connected to the axle of the wheel 5, thereby realizing the coaxial arrangement and synchronous rotation of the encoder 3 and the wheel 5, the protective shell 2 is buckled on the mounting seat 1 to cover and protect the encoder 3, and the cable connected to the encoder 3 extends outward through the lower opening of the protective shell 2.

[0035] When renovating and upgrading an old rail-mounted gantry crane, the encoder installation protection device can be used to support and limit the encoder 3 using the mounting base 1, thereby improving the installation stability and positioning accuracy of the encoder 3 and preventing the encoder 3 from falling off. At the same time, the encoder 3 can be covered and protected by the protective shell 2 to prevent the encoder 3 from being corroded by rain and snow, thereby facilitating the renovation and upgrading of old cranes.

[0036] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An encoder installation protection device, comprising: A mounting seat (1) for fixed installation at a wheel of a trolley mechanism, characterized in that the mounting seat (1) includes a base plate (11), a vertically arranged support frame (12) is detachably mounted on the base plate (11), a mounting hole (14) is provided on the support frame (12), a protective shell (2) is detachably provided on the base plate (11), the support frame (12) is located in the protective shell (2), the lower portion of the shell (21) of the protective shell (2) is open, one side of the shell (21) is open, and a cable outlet is provided between the lower portion of the shell (21) and the base plate (11).

2. An encoder installation protection device according to claim 1, characterized in that: The support frame (12) comprises a horizontal plate and a vertical plate. The horizontal plate is detachably connected to the bottom plate (11). The vertical plate is fixedly arranged on the horizontal plate. The mounting holes (14) are arranged on the vertical plate.

3. The encoder installation protection device according to claim 1, characterized in that: The lower part of the shell (21) is provided with a flange (22), and the flange (22) is detachably connected to the bottom plate (11) through bolts.

4. The encoder installation protection device according to claim 1, characterized in that: The lower opening of the shell (21) is an oblique opening.

5. The encoder installation protection device according to claim 4, characterized in that: The lower opening of the shell (21) is arranged obliquely upward in a direction away from the open side of the shell (21).

6. A rail-mounted gantry crane, characterized in that: It comprises an encoder installation protection device as described in any one of claims 1 to 5, and also comprises: a trolley mechanism, the wheel (5) of the trolley mechanism is rotatably mounted on the lower part of the support leg (4), the mounting seat (1) is fixedly mounted on the outer wall of the lower part of the support leg (4), the rotating shaft of the encoder (3) is inserted into the mounting hole (14) and fixedly connected to the axle of the wheel (5), and the protective shell (2) is snap-fitted and mounted on the mounting seat (1).

7. The rail-mounted gantry crane according to claim 6, characterized in that: The mounting hole (14) on the support frame (12) is coaxially arranged with the wheel (5).

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