Moving assembly for crane

Abstract

The utility model relates to the technical field of moving components for cranes, in particular to a moving component for a crane, which comprises a middle frame, equipment frames are fixedly mounted at two ends of the middle frame, each equipment frame comprises a back plate and a front shell, each front shell is mounted on the front end face of the corresponding back plate and is fixedly connected with the back plate, and the front shell is fixedly connected with the back plate. A first driving belt wheel and a second driving belt wheel are installed at the two ends of the back plate correspondingly, the first driving belt wheel and the second driving belt wheel are both rotationally connected with the back plate, and the first driving belt wheel and the second driving belt wheel are fixedly sleeved with a walking belt. During use, a second driving belt wheel is driven to rotate through a driving part, then a first driving belt wheel is driven to rotate through a rear transmission belt, and it is guaranteed that a walking belt is driven to rotate and walk in a synchronous rotation mode of the first driving belt wheel and the second driving belt wheel; in use, the lower end face of the walking belt is in large-area contact with an equipment support.

Description

Technical Field

[0001] This utility model relates to the technical field of mobile components for cranes, and in particular to a mobile component for cranes. Background Technology

[0002] Gantry cranes, also known as portal cranes or port cranes, are lifting equipment widely used in ports, docks, railway freight yards, and large factories. During the operation of the crane, the moving component plays a crucial role, directly affecting the crane's mobility and work efficiency. In use, the moving component is used to drive the hook to move horizontally on the support.

[0003] Regarding the aforementioned technologies, it has been found that the moving components used in existing gantry cranes contact the frame through moving wheels during use. The contact area is small, resulting in low friction during start-up and shutdown, which can easily lead to slippage and hinders precise control. Utility Model Content

[0004] This utility model solves the problems in related technologies and proposes a mobile component for cranes.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] A mobile component for a crane includes a central frame with equipment frames fixedly mounted at both ends. Each equipment frame includes a back plate and a front shell. The front shell is mounted on the front end face of the back plate and is fixedly connected to the back plate. A first drive pulley and a second drive pulley are respectively mounted on both ends of the back plate. Both the first and second drive pulleys are rotatably connected to the back plate, and a traveling belt is fixedly fitted onto the first and second drive pulleys. A drive component for driving the second drive pulley to rotate is fixedly mounted on the front end face of the back plate. Two sets of brake components are symmetrically mounted in the front shell and are horizontally slidably connected to the front shell. A control component for driving the two sets of brake components to move synchronously is also fixedly mounted on the front shell.

[0007] As a preferred embodiment, the first drive pulley includes a first shaft and a first pulley, the first pulley is sleeved and fixed on the first shaft, and a rear driven pulley is sleeved and fixedly installed at the rear end of the first shaft.

[0008] As a preferred embodiment, the second drive pulley includes a second shaft and a second pulley. The second pulley is sleeved and fixed on the second shaft, and a front driven pulley is sleeved and fixed at the front end of the second pulley. A rear drive pulley is sleeved and fixed at the rear end of the second pulley. The rear drive pulley is connected to the rear driven pulley through a rear transmission belt.

[0009] As a preferred embodiment, the driving component includes a motor mount and a drive motor. The drive motor is fixedly mounted in the motor mount, and a front drive pulley is mounted on the output end of the drive motor. The front drive pulley is connected to the front driven pulley via a front transmission belt.

[0010] As a preferred embodiment, the brake component includes an arc-shaped brake pad, a guide slide rod, and a ramp seat. The guide slide rod is slidably installed in the front housing, and the arc-shaped brake pad and the ramp seat are fixedly installed at both ends of the guide slide rod. A support spring is also fixedly installed between the ramp seat and the front housing.

[0011] As a preferred embodiment, the control component includes an electric cylinder and a trapezoidal pressure block that slides with the inclined block seat. The electric cylinder is fixedly installed on the upper end face of the front housing, and the trapezoidal pressure block is fixedly installed on the output end of the electric cylinder.

[0012] As a preferred embodiment, a plurality of bottom wheel frames are fixedly installed on the lower end face of the front shell, and a pressure wheel assembly for pressing the walking belt is installed at the lower end of the bottom wheel frame, and the pressure wheel assembly is rotatably connected to the bottom wheel frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, this application drives the second drive pulley to rotate through a drive component, and then drives the first drive pulley to rotate through the rear transmission belt. This ensures that the travel belt rotates and moves by means of synchronous rotation of the first and second drive pulleys. In this way, the lower end surface of the travel belt makes contact with the equipment support over a large area. This driving method has high power transmission efficiency and can ensure the stable movement of the crane. At the same time, the setting of control components and brake components allows for simultaneous locking of the first and second pulleys during use, ensuring more stable stopping, improving the timeliness and reliability of braking, and ensuring the safe operation of the crane. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a perspective view of the overall structure of the device of this utility model from one side without the middle frame installed;

[0016] Figure 3 yes Figure 2 A front view of the device shown;

[0017] Figure 4 yes Figure 2 Top view of the device shown;

[0018] Figure 5 yes Figure 2 Rear view of the device shown.

[0019] In the diagram: 1. Mid-frame; 2. Equipment frame; 21. Back plate; 22. Front shell; 221. Bottom wheel frame; 222. Pressure wheel assembly; 3. First drive pulley; 31. First axle; 311. Rear driven pulley; 32. First pulley; 4. Second drive pulley; 41. Second axle; 42. Second pulley; 421. Front driven pulley; 422. Rear drive pulley; 43. Rear transmission belt; 5. Travel belt; 6. Drive component; 61. Motor mount; 62. Drive motor; 621. Front drive pulley; 63. Front transmission belt; 7. Brake component; 71. Arc-shaped brake pad; 72. Guide slide rod; 73. Inclined block seat; 74. Support spring; 8. Control component; 81. Electric cylinder; 82. Trapezoidal pressure block. Detailed Implementation

[0020] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0022] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0023] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" 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 simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0024] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0025] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0026] Reference Figure 1 , Figure 2 and Figure 3As shown, a mobile component for a crane includes a central frame 1. Equipment frames 2 are fixedly installed at both ends of the central frame 1. The equipment frames 2 include a back plate 21 and a front shell 22. The front shell 22 is installed on the front end face of the back plate 21 and is fixedly connected to the back plate 21. A first drive pulley 3 and a second drive pulley 4 are respectively installed at both ends of the back plate 21. The first drive pulley 3 and the second drive pulley 4 are rotatably connected to the back plate 21. A traveling belt 5 is sleeved and fixed on the first drive pulley 3 and the second drive pulley 4. A driving component 6 for driving the second drive pulley 4 to rotate is fixedly installed on the front end face of the back plate 21. Two sets of brake components 7 are symmetrically installed in the front shell 22. The brake components 7 are horizontally slidably connected to the front shell 22. A control component 8 for driving the two sets of brake components 7 to move synchronously is also fixedly installed on the front shell 22. The mobile assembly adopts a structure consisting of a central frame 1, an equipment frame 2, drive pulleys, a traveling belt 5, a drive unit 6, a brake unit 7, and a control unit 8 as its basic structure. This structural design enables the crane's mobile assembly to have complete drive and braking functions, achieving stable movement and timely braking of the crane, thus improving the crane's working efficiency and safety. In specific use, the traveling belt 5 is supported by the first drive pulley 3 and the second drive pulley 4 installed on the back plate 21. When the drive unit 6 drives the second drive pulley 4 to rotate, it can simultaneously drive the first drive pulley 3 to rotate synchronously, thereby driving the external traveling belt 5 to move stably. The control unit 8 and the two sets of brakes 7 are designed to simultaneously lock the first drive pulley 3 and the second drive pulley 4 when a stop is needed. Several bottom wheel frames 221 are fixedly installed on the lower end of the front shell 22. The lower end of the bottom wheel frame 221 is equipped with a pressure wheel assembly 222 that holds the traveling belt 5. The pressure wheel assembly 222 is rotatably connected to the bottom wheel frame 221. By installing a bottom wheel frame 221 and a pressure wheel assembly 222 at the lower end of the front housing 22, the traveling belt 5 can be pressed down. This structural design prevents the traveling belt 5 from loosening or slipping during operation, ensuring the stability of the crane's movement and improving the crane's working performance.

[0027] Reference Figure 3 and Figure 5 As shown, the first drive pulley 3 includes a first shaft 31 and a first pulley 32. The first pulley 32 is sleeved and fixed on the first shaft 31, and a rear driven pulley 311 is sleeved and fixedly installed at the rear end of the first shaft 31. By designing the first drive pulley 3 into a structure that includes the first shaft 31 and the first pulley 32 cooperating, and installing the rear driven pulley 311 at the rear end of the first shaft 31, this structural design makes the structure of the first drive pulley 3 clearer and facilitates better installation. At the same time, the setting of the rear driven pulley 311 provides a basis for power transmission, ensuring that power can be transmitted from the second drive pulley 4 to the first drive pulley 3.

[0028] Reference Figure 4 and Figure 5 As shown, the second drive pulley 4 includes a second shaft 41 and a second pulley 42. The second pulley 42 is sleeved and fixed on the second shaft 41, and a front driven pulley 421 is sleeved and fixed at the front end of the second pulley 42. A rear drive pulley 422 is sleeved and fixed at the rear end of the second pulley 42. The rear drive pulley 422 is connected to the rear driven pulley 311 via a rear transmission belt 43. By designing the second drive pulley 4 into a structure in which the second shaft 41, the second pulley 42, the front driven pulley 421, and the rear drive pulley 422 cooperate, and by connecting the rear drive pulley 422 and the rear driven pulley 311 via the rear transmission belt 43, the second drive pulley 4 can better cooperate with the drive component 6 and the first drive pulley 3, achieving effective power transmission and improving the power transmission efficiency of the crane's moving components.

[0029] Reference Figure 2 and Figure 3 As shown, the drive unit 6 includes a motor base 61 and a drive motor 62. The drive motor 62 is fixedly mounted in the motor base 61, and a front drive pulley 621 is mounted on the output end of the drive motor 62. The front drive pulley 621 is connected to the front driven pulley 421 via a front transmission belt 63. By designing the drive unit 6 into a structure where the motor base 61 and the drive motor 62 cooperate, the front drive pulley 621 at the output end of the drive motor 62 can drive the front driven pulley 421 to rotate during use, thereby outputting rotational power through the front driven pulley 421. This structural design enables the drive unit 6 to stably provide power to the second drive pulley 4, ensuring the normal operation of the crane's moving components.

[0030] Reference Figure 2 and Figure 3 As shown, the brake component 7 includes an arc-shaped brake pad 71, a guide slide rod 72, and a ramp seat 73. The guide slide rod 72 is slidably mounted in the front housing 22. The arc-shaped brake pad 71 and the ramp seat 73 are fixedly mounted at both ends of the guide slide rod 72. A support spring 74 is also fixedly mounted between the ramp seat 73 and the front housing 22. By designing the brake component 7 with a structure in which the arc-shaped brake pad 71, guide slide rod 72, ramp seat 73, and support spring 74 cooperate, this structural design allows the brake component 7 to accurately brake the travel belt 5 under the drive of the control component 8. At the same time, the support spring 74 ensures the reset of the brake component 7 in the non-braking state, improving the reliability of braking.

[0031] Reference Figure 3As shown, the control assembly 8 includes an electric cylinder 81 and a trapezoidal pressure block 82 that slides with the inclined block seat 73. The electric cylinder 81 is fixedly mounted on the upper end face of the front housing 22, and the trapezoidal pressure block 82 is fixedly mounted on the output end of the electric cylinder 81. By designing the control assembly 8 into a structure in which the electric cylinder 81 and the trapezoidal pressure block 82 cooperate, this structural design allows the control assembly 8 to easily drive the two sets of brake components 7 to move synchronously, thereby braking the travel belt 5 and improving the timeliness and synchronization of braking.

[0032] In this embodiment, during actual use, the second drive pulley 4 is driven to rotate by the drive component 6, which in turn drives the first drive pulley 3 to rotate via the rear transmission belt 43, thereby causing the travel belt 5 to rotate and enabling the equipment to move. When braking is required, the electric cylinder 81 drives the trapezoidal pressure block 82 to move downward. The trapezoidal pressure block 82 slides in conjunction with the inclined block seat 73, causing the two sets of brake components 7 to move synchronously towards the first pulley 32 and the second pulley 42. After the arc-shaped brake pad 71 contacts the first pulley 32 and the second pulley 42, braking is achieved. The pressure wheel assembly 222 on the lower end face of the front shell 22 can press and hold the travel belt 5, preventing the travel belt 5 from loosening or slipping during operation and ensuring the stability of the crane's movement.

[0033] The above are preferred embodiments of this utility model. Those skilled in the art to which this utility model pertains should not make changes or modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.

Claims

1. A mobile assembly for a crane, comprising a middle frame (1), equipment racks (2) are fixedly installed at both ends of the middle frame (1), characterized in that: The equipment rack (2) comprises a back plate (21) and a front shell (22), the front shell (22) is installed at the front end surface of the back plate (21), and the front shell (22) is fixedly connected with the back plate (21); first driving pulleys (3) and second driving pulleys (4) are respectively installed at the two ends of the back plate (21); the first driving pulleys (3) and the second driving pulleys (4) are rotatably connected with the back plate (21), and walking belts (5) are sleeved and fixed on the first driving pulleys (3) and the second driving pulleys (4); a driving member (6) for driving the second driving pulleys (4) to rotate is fixedly installed at the front end surface of the back plate (21); two groups of brake members (7) are symmetrically installed in the front shell (22); the brake members (7) are horizontally slidably connected with the front shell (22); a control assembly (8) for driving the two groups of brake members (7) to move synchronously is fixedly installed on the front shell (22).

2. A mobile assembly for a crane according to claim 1, characterized in that: The first driving pulley (3) comprises a first shaft (31) and a first pulley (32), the first pulley (32) is sleeved and fixed on the first shaft (31), and a rear driven pulley (311) is sleeved and fixed at the rear end of the first shaft (31).

3. A mobile assembly for a crane according to claim 2, characterized in that: The second driving pulley (4) comprises a second shaft (41) and a second pulley (42), the second pulley (42) is sleeved and fixed on the second shaft (41), a front driven pulley (421) is sleeved and fixed at the front end of the second pulley (42), and a rear driving pulley (422) is sleeved and fixed at the rear end of the second pulley (42); the rear driving pulley (422) is connected with the rear driven pulley (311) through a rear transmission belt (43).

4. A mobile assembly for a crane according to claim 3, characterized in that: The driving member (6) comprises a motor base (61) and a driving motor (62), the driving motor (62) is fixedly installed in the motor base (61), a front driving pulley (621) is installed at the output end of the driving motor (62), and the front driving pulley (621) is connected with the front driven pulley (421) through a front transmission belt (63).

5. A mobile assembly for a crane according to claim 4, characterized in that: The brake member (7) comprises an arc-shaped brake pad (71), a guide sliding rod (72) and an inclined block seat (73), the guide sliding rod (72) is slidably installed in the front shell (22), the arc-shaped brake pad (71) and the inclined block seat (73) are fixedly installed at the two ends of the guide sliding rod (72), and a supporting spring (74) is further fixedly installed between the inclined block seat (73) and the front shell (22).

6. A mobile assembly for a crane according to claim 5, characterized in that: The control assembly (8) comprises an electric cylinder (81) and a trapezoidal pressing block (82) which is slidably connected with the inclined block seat (73), the electric cylinder (81) is fixedly installed at the upper end surface of the front shell (22), and the trapezoidal pressing block (82) is fixedly installed at the output end of the electric cylinder (81).

7. A mobile assembly for a crane according to any one of claims 2-6, characterized in that: A plurality of bottom wheel frames (221) are fixedly installed at the lower end surface of the front shell (22), a pressing wheel group (222) for pressing the walking belt (5) is installed at the lower end of each bottom wheel frame (221), and the pressing wheel group (222) is rotatably connected with the bottom wheel frame (221).

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