Adjustable cart cross limit switch mounting structure

Abstract

The utility model discloses an adjustable cross limit switch mounting structure for a cart, which relates to the technical field of crane limit devices and is characterized in that a cross rod extending inwards is arranged on the inner side of an end beam of the cart, and a movable plate capable of sliding and adjusting along the axial direction of the cross rod is arranged on a rod body of the cross rod; a vertical rod which is perpendicular to the transverse rod and can be adjusted in a lifting and sliding mode is arranged on the movable plate, a limiting support is arranged on the side, facing the cart track bearing beam, of a rod body of the vertical rod, and a cross-shaped limiting switch matched with the limiting touch ruler is arranged on the limiting support; according to the utility model, the distance between the cross-shaped limit switch and the limit touch ruler can be adjusted, and the lifting adjustment of the cross-shaped limit switch can be realized, so that the cross-shaped limit switch can be accurately matched with the limit touch ruler in position, and a powerful guarantee is provided for the operation safety of the crane.

Description

Technical Field

[0001] The utility model relates to the technical field of crane limit devices, in particular to an adjustable trolley cross limit switch installation structure. Background Art

[0002] During the operation of the crane, in order to ensure the safety of the crane, an operating limit position limit protection mechanism is usually installed on the crane and the operating track to prevent the crane or trolley from running to the end of the track and hitting the rail end stop at high speed due to negligence or error in operation, or colliding with the adjacent crane on the same track, causing equipment and personal accidents.

[0003] The existing extreme position limit protection mechanism is usually composed of a limit ruler installed on the crane track and a matching cross limit switch installed on the crane travel mechanism. However, the existing installation method adopts welding fixation, which has the following disadvantages:

[0004] 1. The welding fixation method not only requires the staff to perform repeated measurements and positioning before installation, but also easily causes the cross limit switch and the limit ruler to fail to accurately match due to welding quality during the welding process;

[0005] 2. After welding and fixing, the limit ruler and cross limit switch cannot be applied to crane trolleys of various specifications. They cannot be adjusted according to actual needs during subsequent use. When adjustment is required, they often need to be disassembled and welded again, which is time-consuming and laborious.

[0006] Therefore, how to overcome the above-mentioned technical problems and defects becomes a key issue that needs to be solved. Utility Model Content

[0007] In order to overcome the deficiencies in the background technology, the utility model discloses an adjustable trolley cross limit switch installation structure. The utility model can not only adjust the distance between the cross limit switch and the limit ruler, but also adjust the lifting and lowering of the cross limit switch, so that the cross limit switch can be accurately matched with the limit ruler, providing a strong guarantee for the safe operation of the crane.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] An adjustable trolley cross limit switch installation structure includes a limit ruler installed on the inner side of the trolley track load-bearing beam, a cross bar extending inward is provided on the inner side of the trolley end beam, a movable plate that can be slidably adjusted along the axial direction of the cross bar is provided on the rod body of the cross bar, a vertical rod that is arranged perpendicular to the cross bar and can be raised, lowered, slid and adjusted is provided on the movable plate, a limit bracket is provided on the side of the vertical rod body facing the trolley track load-bearing beam, and a cross limit switch that cooperates with the limit ruler is provided on the limit bracket.

[0010] Furthermore, at least one U-shaped bolt A is provided on one side of the movable plate, and the cross bar is inserted into the U-shaped bolt A and is compressed and limited by the U-shaped bolt A.

[0011] Furthermore, the plate surface of the movable plate for installing the U-shaped bolt A is provided with a slide groove A which is arranged along the axial direction of the cross bar and has open structures at both ends. The cross bar is inserted into the slide groove A through the opening at the end of the slide groove A and slides with the slide groove A. Installation screw holes A for installing the U-shaped bolt A are symmetrically arranged on both sides of the slide groove A.

[0012] Furthermore, a plurality of limit slots A which are arranged in an orderly manner along the axial direction of the cross bar and are engaged with the U-bolts A are provided on one side of the cross bar which faces away from the inner bottom surface of the slide groove A.

[0013] Furthermore, at least one U-shaped bolt B is provided on the other side of the movable plate, and the vertical rod is inserted into the U-shaped bolt B and is tightened and limited by the U-shaped bolt B.

[0014] Furthermore, the plate surface of the movable plate for installing the U-bolt B is provided with a slide groove B which is arranged along the axial direction of the vertical rod and has open structures at both ends. The vertical rod is inserted into the slide groove B through the opening at the end of the slide groove B and slides with the slide groove B. Installation screw holes B for installing the U-bolt B are symmetrically arranged on both sides of the slide groove B.

[0015] Furthermore, a plurality of limit slots B which are arranged in an orderly manner along the axial direction of the vertical rod and are engaged with the U-bolts B are provided on one side of the vertical rod which faces away from the inner bottom surface of the sliding groove B.

[0016] Furthermore, the limit bracket includes a mounting plate and a support plate. The mounting plate is arranged parallel to the vertical rod and fixedly connected to the vertical rod by bolts. A support plate is provided on the side of the lower part of the mounting plate facing the trolley track load-bearing beam and is perpendicular to the mounting plate and used to install the cross limit switch.

[0017] Furthermore, an end plate for connecting to the trolley end beam is provided at one end of the crossbar.

[0018] Compared with the prior art, the beneficial effect of the utility model is that the utility model can realize the adjustment of the distance between the cross limit switch and the limit ruler and the lifting and lowering adjustment of the cross limit switch through the cooperation of the cross bar, the movable plate and the vertical bar, so that the cross limit switch can be accurately matched with the limit ruler, providing a strong guarantee for the safe operation of the crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the cooperation state of the cross bar and the movable plate of the utility model;

[0021] Figure 3 This is a schematic diagram of the coordination state of the vertical rod and the movable plate of the utility model;

[0022] Figure 4 It is a schematic diagram of the limiting bracket structure of the utility model.

[0023] In the figure: 1. Limit touch ruler; 2. Trolley track load-bearing beam; 3. Trolley end beam; 4. Cross bar; 5. Movable plate; 6. Vertical bar; 7. Cross limit switch; 8. Limit bracket; 9. End plate; 10. Limit slot A; 11. Mounting screw hole A; 12. Slide slot A; 13. U-bolt A; 14. Mounting screw hole B; 15. Slide slot B; 16. U-bolt B; 17. Limit slot B; 18. Mounting plate; 19. Support plate. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. indicating directions or positional relationships, they only correspond to the drawings of the present invention and are for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction.

[0025] Please refer to the instruction manual Figure 1-4 , the utility model provides a technical solution:

[0026] Embodiment 1, an adjustable trolley cross limit switch installation structure, including a limit ruler 1 installed on the inner side of the trolley track load-bearing beam 2, a cross bar 4 extending inwardly is provided on the inner side of the trolley end beam 3, specifically, an end plate 9 perpendicular to the cross bar 4 is provided at one end of the cross bar 4, the end plate 9 is fixedly connected to the trolley end beam 3 by bolts, and a movable plate 5 that can be slidably adjusted along the axial direction of the cross bar 4 is provided on the rod body of the cross bar 4. Specifically, at least one U-bolt A13 is provided on one side of the plate surface of the movable plate 5, and the cross bar 4 is inserted into the U-bolt A13. The U-bolt A13 can be used to realize the sliding cooperation between the movable plate 5 and the cross bar 4, which is convenient for the subsequent sliding adjustment of the movable plate 5, and the U-bolt A13 can be used to press and limit the movable plate 5 to realize the fixed connection between the movable plate 5 and the cross bar 4. The movable plate 5 is provided with a A vertical rod 6 is provided and capable of lifting, sliding and adjusting. Specifically, at least one U-bolt B16 is provided on the plate surface on the other side of the movable plate 5. The vertical rod 6 is inserted into the U-bolt B16. The U-bolt B16 can be used to realize the sliding cooperation between the movable plate 5 and the vertical rod 6, which is convenient for the subsequent sliding adjustment of the vertical rod 6. The U-bolt B16 can also be used to tighten and limit the position to realize the fixed connection between the movable plate 5 and the vertical rod 6. A limit bracket 8 is provided on the side of the vertical rod 6 body facing the trolley track load-bearing beam 2. The limit bracket 8 includes a mounting plate 18 and a support plate 19. The mounting plate 18 is arranged parallel to the vertical rod 6 and is fixedly connected to the vertical rod 6 by bolts. A support plate 19 perpendicular to the mounting plate 18 is provided on the side of the lower part of the mounting plate 18 facing the trolley track load-bearing beam 2, and the cross limit switch 7 is installed on the support plate 19;

[0027] When it is necessary to adjust the position of the cross limit switch 7, the staff only needs to loosen the U-bolt A13, and push the movable plate 5 to slide along the cross bar 4 to drive the vertical bar 6 and its cross limit switch 7 to slide synchronously in the same direction, thereby realizing the adjustment of the distance between the cross limit switch 7 and the limit touch ruler 1. By loosening the U-bolt B16, the vertical bar 6 can be pushed up and down to drive the cross limit switch 7 to be raised and lowered synchronously in the same direction, thereby realizing the lifting and lowering adjustment of the cross limit switch 7, ensuring the precise correspondence between the cross limit switch 7 and the limit touch ruler 1.

[0028] In the second embodiment, although the sliding adjustment of the movable plate 5 and the vertical rod 6 can be achieved through the limiting of the U-bolt A13 and the U-bolt B16, there must be a certain interval between the U-bolt A13 and the cross bar 4, and between the U-bolt B16 and the vertical rod 6, which can easily cause the subsequent cross limit switch 7 to tilt to a certain extent, thereby affecting the corresponding cooperation between the cross limit switch 7 and the limit ruler 1. In order to ensure the precise position adjustment of the cross limit switch 7, the plate surface of the movable plate 5 on which the U-bolt A13 is installed is provided with a slide groove A12 which is arranged axially along the cross bar 4 and has open structures at both ends. The cross bar 4 is inserted into the slide groove A12 through the opening at the end of the slide groove A12 and slidably cooperates with the slide groove A12. The slide groove A12 is symmetrically provided with mounting screws for installing the U-bolt A13 on both sides. Hole A11, the plate surface of the movable plate 5 for installing the U-bolt B16 is provided with a slide groove B15 which is arranged along the axial direction of the vertical rod 6 and has an open structure at both ends. The vertical rod 6 is inserted into the slide groove B15 through the open end of the slide groove B15 and slides with the slide groove B15. The two sides of the slide groove B15 are symmetrically provided with mounting screw holes B14 for installing the U-bolt B16. The setting of the slide groove A12 can ensure the horizontal stability of the movable plate 5 during the sliding process, and the setting of the slide groove B15 can ensure the vertical stability of the vertical rod 6 during the lifting and lowering adjustment process, wherein the side of the cross bar 4 facing away from the inner bottom surface of the slide groove A12 is located outside the slide groove A12, and the side of the vertical rod 6 facing away from the inner bottom surface of the slide groove B15 is located outside the slide groove B15, which enables the subsequent U-bolt A13 and U-bolt B16 to effectively press the cross bar 4 and the vertical rod 6.

[0029] In the third embodiment, although the movable plate 5 and the vertical rod 6 can be limited by tightening the U-bolts A13 and the U-bolts B16, since the contact surface is a plane, it is easy to slide under force during long-term use, affecting the precise matching of the cross limit switch 7 and the limit touch ruler 1. In order to ensure that the U-bolts A13 and the U-bolts B16 firmly and stably limit the movable plate 5 and the vertical rod 6, a plurality of cross bar 4 are provided on the side facing away from the inner bottom surface of the slide groove A12. A plurality of limit slots A10 are arranged in sequence and are engaged with the U-bolt A13. A side of the vertical rod 6 facing away from the inner bottom surface of the slide groove B15 is provided with a plurality of limit slots B17 which are arranged in sequence along the axial direction of the vertical rod 6 and are engaged with the U-bolt B16. After tightening the U-bolt A13 and the U-bolt B16, the U-bolt A13 and the U-bolt B16 are respectively inserted into the corresponding limit slots A10 and the limit slots B17, which effectively avoids accidental movement of the movable plate 5 and the vertical rod 6.

[0030] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the above-mentioned embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the content of the claims involved.

Claims

1. An adjustable trolley cross limit switch installation structure, comprising a limit stopper (1) installed on the inner side of a trolley track load-bearing beam (2), characterized in that: A cross bar (4) extending inward is provided on the inner side of the trolley end beam (3); a movable plate (5) capable of sliding and adjusting along the axial direction of the cross bar (4) is provided on the rod body of the cross bar (4); a vertical rod (6) arranged perpendicular to the cross bar (4) and capable of lifting and sliding and adjusting is provided on the movable plate (5); a limit bracket (8) is provided on the rod body of the vertical rod (6) on the side facing the trolley track load-bearing beam (2); and a cross limit switch (7) cooperating with the limit contact ruler (1) is provided on the limit bracket (8).

2. The adjustable cross limit switch installation structure for a large vehicle according to claim 1, characterized in that: At least one U-shaped bolt A (13) is provided on one side of the movable plate (5), and the cross bar (4) is inserted into the U-shaped bolt A (13) and is compressed and limited by the U-shaped bolt A (13).

3. The adjustable cross limit switch installation structure for a large vehicle according to claim 2 is characterized in that: The plate surface of the movable plate (5) for mounting the U-bolts A (13) is provided with a slide groove A (12) which is arranged along the axial direction of the cross bar (4) and has an open structure at both ends. The cross bar (4) is inserted into the slide groove A (12) through the open end of the slide groove A (12) and slidably cooperates with the slide groove A (12). The slide groove A (12) is symmetrically provided with mounting screw holes A (11) for mounting the U-bolts A (13) on both sides.

4. The adjustable cross limit switch installation structure for a large vehicle according to claim 3 is characterized in that: A plurality of limit slots A (10) are provided on one side of the inner bottom surface of the cross bar (4) facing away from the slide groove A (12) and are arranged in an orderly manner along the axial direction of the cross bar (4) and are engaged with the U-shaped bolts A (13).

5. The adjustable cross limit switch installation structure for a large vehicle according to claim 2, characterized in that: At least one U-shaped bolt B (16) is provided on the other side of the movable plate (5), and the vertical rod (6) is inserted into the U-shaped bolt B (16) and is compressed and limited by the U-shaped bolt B (16).

6. The adjustable cross limit switch installation structure for a large vehicle according to claim 5, characterized in that: The plate surface of the movable plate (5) for mounting the U-bolts B (16) is provided with a slide groove B (15) which is arranged along the axial direction of the vertical rod (6) and has an open structure at both ends. The vertical rod (6) is inserted into the slide groove B (15) through the open end of the slide groove B (15) and slidably cooperates with the slide groove B (15). The slide groove B (15) is symmetrically provided with mounting screw holes B (14) for mounting the U-bolts B (16) on both sides.

7. The adjustable cross limit switch installation structure for a large vehicle according to claim 6, characterized in that: A plurality of limit slots B (17) are provided on one side of the vertical rod (6) facing away from the inner bottom surface of the slide groove B (15) and are arranged in an orderly manner along the axial direction of the vertical rod (6) and are engaged with the U-shaped bolts B (16).

8. The adjustable cross limit switch installation structure for a large vehicle according to claim 1, characterized in that: The limit bracket (8) comprises a mounting plate (18) and a support plate (19); the mounting plate (18) is arranged parallel to the vertical rod (6) and is fixedly connected to the vertical rod (6) by bolts; a support plate (19) is provided on the lower part of the mounting plate (18) on the side facing the trolley track load-bearing beam (2) and is perpendicular to the mounting plate (18) and is used to mount a cross limit switch.

9. The adjustable cross limit switch installation structure for a large vehicle according to claim 1, characterized in that: An end plate (9) for connecting to the trolley end beam (3) is provided at one end of the crossbar (4).

Images