Travelling crane limiting stopper

Abstract

The utility model discloses a travelling crane limiter, which relates to the field of travelling crane limiters and comprises a track and a limiting mechanism mounted on the track, a mounting rack is arranged on one side of the limiting mechanism at the top of the track, a contact plate matched with a travelling crane limiting switch is mounted on the mounting rack, the limiting mechanism comprises a positioning seat, one side of the positioning seat is connected with a stop block, and the stop block is connected with a stop block. Positioning grooves matched with the traveling wheels are formed in the stop blocks, buffering assemblies are arranged on the inner sides of the limiting grooves, and limiting plates used for limiting the traveling wheels are symmetrically and fixedly connected to the two ends of the positioning base. According to the buffer plate, the impact force of the travelling crane wheel on the buffer plate is transmitted to the movable plate through the cross rod, so that the movable plate extrudes the spring, the travelling crane is buffered, the collision force between the travelling crane wheel and the stop block can be reduced, and the safety of the travelling crane is protected; the two sides of the traveling wheel are limited through the two limiting plates, the traveling wheel can be prevented from being separated from the track through cooperation with the stopping blocks, and the traveling safety is further improved.

Description

Technical Field

[0001] The utility model relates to the field of driving limiters, in particular to a driving limiter. Background Art

[0002] A crane limiter is a device used to control and limit the range of crane movement. It is widely used in the fields of industry and logistics, especially in cranes, cranes, electric hoists and other equipment. The main function of a crane limiter is to ensure that the crane operates within a predetermined safety area and prevent collisions or operations beyond the safety range caused by operating errors.

[0003] The utility model patent with application number CN202022116799.4 discloses a crane limiter, including a rail clamp protruding on the track, a fixed rod detachably connected to the track, a sleeve rod sleeved on the fixed rod that can reciprocate up and down along the fixed rod, a contact plate adapted to a limit switch provided on the top of the crane, and a power supply signal connection of the crane. The utility model realizes double protection through the rail clamp and the contact plate. The contact plate disconnects the power supply of the crane, activates the brake, and the rail clamp further prevents the crane from continuing to move forward, thereby limiting the crane from entering the maintenance area and avoiding accidents.

[0004] However, in actual applications, when the vehicle speed is fast, the impact force generated when the wheels collide with the track clamps is large, which can easily cause damage to the vehicle. There is also a risk of the wheels detaching from the track, which urgently needs improvement. Utility Model Content

[0005] The technical problem to be solved by the utility model is that when the traveling wheel collides with the track clamp, it is easy to cause damage to the traveling vehicle, and there is a risk that the traveling wheel will be separated from the track.

[0006] In order to solve the above problems, the technical solution of the utility model is: a driving limiter, including a track and a limiting mechanism installed on the track, a mounting frame is provided on the top of the track on one side of the limiting mechanism, a contact plate compatible with the driving limit switch is installed on the mounting frame, the limiting mechanism includes a positioning seat, a blocking block is connected to one side of the positioning seat, a positioning groove compatible with the running wheel is opened on the blocking block, a buffer assembly is provided on the inner side of the positioning groove, and limiting plates for limiting the running wheel are symmetrically fixed at both ends of the positioning seat.

[0007] Furthermore, the mounting frame is an L-shaped structure, and the limiting mechanism is located on the inner side of the mounting frame.

[0008] Furthermore, the positioning seat is installed on the track by bolts, and the width of the positioning seat is matched with the width of the running wheel.

[0009] Furthermore, the positioning groove is a semicircular groove, two circular holes are provided inside the blocking block, and a through hole is provided between the circular holes and the positioning groove.

[0010] Furthermore, the buffer assembly includes a movable plate arranged inside the circular hole, a cross bar is fixedly connected to one side of the movable plate, an end of the cross bar passes through the through hole and is connected to the buffer plate, and a spring is provided on the other side of the movable plate.

[0011] Furthermore, the movable plate is symmetrically fixed with limit blocks on both sides, and both sides of the through hole are provided with limit grooves matched with the limit blocks.

[0012] The advantages of the utility model compared with the existing technology are: the buffer plate of the utility model transmits the impact force of the running wheel on the buffer plate to the movable plate through the cross bar, prompting the movable plate to squeeze the spring, thereby achieving buffering of driving, and can reduce the collision force between the running wheel and the blocking block, thereby protecting the safety of driving; the two sides of the running wheel are limited by two limiting plates, and the cooperation with the blocking block can prevent the running wheel from leaving the track, thereby further improving the safety of driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a stereogram of the utility model.

[0014] Figure 2 It is a structural diagram of the limiting mechanism of the utility model.

[0015] Figure 3 This is a cross-sectional view of the limit mechanism of the utility model. Figure 1 .

[0016] Figure 4 This is a cross-sectional view of the limit mechanism of the utility model. Figure 2 .

[0017] As shown in the figure: 1. Track; 2. Mounting frame; 3. Contact plate; 4. Positioning seat; 5. Blocking block; 6. Wheel; 7. Limiting plate; 8. Movable plate; 9. Cross bar; 10. Buffer plate; 11. Spring; 12. Limiting block. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] like Figure 1As shown, a driving limit switch includes a track 1 and a limit mechanism installed on the track 1. A mounting frame 2 is provided on the top of the track 1 on one side of the limit mechanism. A contact plate 3 compatible with the driving limit switch is installed on the mounting frame 2. The mounting frame 2 is an L-shaped structure, and the limit mechanism is located on the inner side of the mounting frame 2.

[0020] The contact plate 3 and the limit switch on the top of the crane sense each other. When the crane passes by, the limit switch senses the contact plate 3 and provides a conversion signal to disconnect the power supply of the crane and start the brake to achieve the limit effect of the crane.

[0021] like Figure 2 As shown, the limiting mechanism includes a positioning seat 4, a blocking block 5 is connected to one side of the positioning seat 4, a positioning groove adapted to the running wheel 6 is opened on the blocking block 5, a buffer component is provided on the inner side of the positioning groove, and limiting plates 7 for limiting the running wheel 6 are symmetrically fixed at both ends of the positioning seat 4. The positioning seat 4 is installed on the track 1 by bolts, and the width of the positioning seat 4 is adapted to the width of the running wheel 6.

[0022] The blocking block 5 can block and limit the wheels 6 to achieve secondary limiting of the vehicle. The two limiting plates 7 limit the two sides of the wheels 6 to prevent the wheels 6 from leaving the track 1.

[0023] like Figure 3 to Figure 4 As shown, the positioning groove is a semicircular groove, two circular holes are opened inside the blocking block 5, and a through hole is provided between the circular hole and the positioning groove, the buffer assembly includes a movable plate 8 arranged inside the circular hole, a cross bar 9 is fixedly connected to one side of the movable plate 8, the end of the cross bar 9 is connected to a buffer plate 10 after passing through the through hole, a spring 11 is provided on the other side of the movable plate 8, and limit blocks 12 are symmetrically fixedly connected to the upper and lower sides of the movable plate 8, and limit grooves matching the limit blocks 12 are provided on both sides of the through hole.

[0024] When the wheel 6 collides with the buffer plate 10, the buffer plate 10 transmits the impact force to the movable plate 8 through the cross bar 9, causing the movable plate 8 to squeeze the spring 11, thereby buffering the driving, thereby reducing the collision force between the wheel 6 and the blocking block 5 and protecting the driving safety.

[0025] During specific use, the buffer plate 10 transmits the impact force of the running wheel 6 on the buffer plate 10 to the movable plate 8 through the cross bar 9, causing the movable plate 8 to squeeze the spring 11, thereby achieving buffering of driving, reducing the collision force between the running wheel 6 and the blocking block 5, and protecting the safety of driving; the two sides of the running wheel 6 are limited by the two limiting plates 7, and the cooperation with the blocking block 5 can prevent the running wheel 6 from leaving the track 1, further improving the safety of driving.

[0026] The undisclosed parts in the present invention are all prior art, and their specific structures and working principles are not described in detail.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0029] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A travel limit switch, comprising a track (1) and a limit mechanism mounted on the track (1), a mounting frame (2) being provided at the top of the track (1) on one side of the limit mechanism, a contact plate (3) adapted to the travel limit switch being mounted on the mounting frame (2), characterized in that: The limiting mechanism comprises a positioning seat (4), one side of the positioning seat (4) is connected to a blocking block (5), a positioning groove adapted to the running wheel (6) is provided on the blocking block (5), a buffer assembly is provided inside the positioning groove, and limiting plates (7) for limiting the running wheel (6) are symmetrically fixedly connected at both ends of the positioning seat (4).

2. A vehicle limiter according to claim 1, characterized in that: The mounting frame (2) is an L-shaped structure, and the limiting mechanism is located inside the mounting frame (2).

3. A vehicle limiter according to claim 1, characterized in that: The positioning seat (4) is installed on the track (1) by means of bolts, and the width of the positioning seat (4) is adapted to the width of the running wheel (6).

4. A vehicle limiter according to claim 1, characterized in that: The positioning groove is a semicircular groove, two circular holes are provided inside the blocking block (5), and a through hole is provided between the circular holes and the positioning groove.

5. A vehicle limiter according to claim 4, characterized in that: The buffer assembly comprises a movable plate (8) arranged inside the circular hole, a cross bar (9) is fixedly connected to one side of the movable plate (8), an end of the cross bar (9) passes through the through hole and is connected to a buffer plate (10), and a spring (11) is provided on the other side of the movable plate (8).

6. A vehicle limiter according to claim 5, characterized in that: The movable plate (8) is symmetrically fixed with limit blocks (12) on both sides, and both sides of the through hole are provided with limit grooves matched with the limit blocks (12).

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