Fixing device for large and small vehicle limit switch of travelling crane

Abstract

The fixing device comprises a first supporting frame, a second supporting frame and a track, the first supporting frame is connected to the upper portion of the second supporting frame in a sliding mode, the second supporting frame is connected to the track in a sliding mode, and the track is fixed to a steel structure of the track of the crane trolley. The first supporting frame comprises first transverse angle steel arranged transversely and first vertical angle steel arranged vertically, one end of the first transverse angle steel is connected with the upper end of the first vertical angle steel, and the first vertical angle steel is in sliding connection with the second supporting frame; a first mounting hole and second mounting holes are formed in the first transverse angle steel, the second mounting holes are formed in the two sides of the first mounting hole, the first mounting hole is used for mounting a proximity switch, and the second mounting holes are used for mounting a travel switch. And two corresponding switches are installed according to actual on-site requirements. The device is simple in principle and convenient and labor-saving to operate, ensures the operation safety of the travelling crane, can adjust the position of the limit switch at any time according to actual requirements, and achieves an accurate mounting effect.

Description

Technical Field

[0001] The utility model relates to the technical field of limit switch installation, in particular to a fixing device for the limit switches of the trolley and the bridge crane of a crane. Background Art

[0002] For the limit switches of the trolley and the bridge crane of a crane, due to the need for adjustment during on-site production and maintenance, the existing installation device cannot be adjusted, resulting in the limit switches not meeting the requirements of maintenance and production. Summary of the Utility Model

[0003] In view of the above-mentioned technical problems, a fixing device for the limit switches of the trolley and the bridge crane is provided.

[0004] The technical means adopted by the utility model are as follows:

[0005] A fixing device for the limit switches of the trolley and the bridge crane includes: a first support frame, a second support frame and a track. The first support frame is slidably connected above the second support frame, the second support frame is slidably connected to the track, and the track is fixed to the steel structure of the trolley and bridge crane tracks.

[0006] The first support frame includes a first horizontal angle steel arranged horizontally and a first vertical angle steel arranged vertically. One end of the first horizontal angle steel is connected to the upper end of the first vertical angle steel, and the first vertical angle steel is slidably connected to the second support frame.

[0007] The first horizontal angle steel is provided with a first mounting hole and at least two second mounting holes. The second mounting holes are arranged on both sides of the first mounting hole, and the first mounting hole and the second mounting holes are arranged in the longitudinal direction. The first mounting hole is used for mounting a proximity switch, and the second mounting holes are used for mounting travel switches.

[0008] Further, the second support frame includes a second vertical angle steel arranged vertically and a second horizontal angle steel arranged horizontally. The lower end of the second vertical angle steel is connected to one end of the second horizontal angle steel. The first vertical angle steel is slidably connected to the inner side of the second vertical angle steel, and the second horizontal angle steel is slidably connected to the track.

[0009] Further, at least one vertically elongated hole is formed in the second vertical angle steel, at least one bolt hole is formed in the first vertical angle steel, the bolt hole is connected to the vertically elongated hole through a bolt, and the first vertical angle steel slides vertically relative to the second vertical angle steel through the bolt and the vertically elongated hole.

[0010] Further, at least one horizontally elongated hole is formed in the second horizontal angle steel, a bolt is connected in the horizontally elongated hole in a mating manner, and the second horizontal angle steel slides horizontally relative to the track through the bolt and the horizontally elongated hole.

[0011] Further, the track is a C-shaped track with longitudinal slots opened at the top. The bolt is fitted and connected in the longitudinal slot, and the second transverse angle steel slides longitudinally relative to the track through the bolt and the longitudinal slot.

[0012] Further, the second mounting hole is a long hole.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] 1. The device principle of the utility model is simple, the operation is convenient and labor-saving, the safety of the crane operation is ensured, and it has good popularization and application value.

[0015] 2. The utility model can adjust the position of the limit switch in three directions of up and down, front and back, and left and right at any time according to actual needs, achieving an accurate installation effect. The travel limit switches of the crane's trolley and bridge can be adjusted up, down, left, right, front and back. Both mechanical travel limit switches and proximity switch limit switches can be installed.

[0016] 3. The utility model realizes the up and down movement of the limit switch by the vertical sliding of the first vertical angle steel on the second vertical angle steel; realizes the left and right movement of the limit switch by the horizontal sliding of the horizontal long hole of the second transverse angle steel along the bolt on the track; realizes the front and back movement of the limit switch by the longitudinal sliding of the bolt on the track along the longitudinal slot.

[0017] Based on the above reasons, the utility model can be widely promoted in the fields such as crane trolleys. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

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

[0020] Figure 2 It is a structural schematic diagram of the first support frame in the present utility model, where (a) is a front view, (b) is a side view, and (c) is a top view.

[0021] Figure 3 It is a structural schematic diagram of the second support frame in the present utility model, where (a) is a front view, (b) is a side view, and (c) is a top view.

[0022] Figure 4This is a schematic structural view of the C-shaped guide rail in the present utility model, where (a) is the front view, (b) is the side view, and (c) is the top view.

[0023] In the figure: 1. First support frame; 2. Second support frame; 3. Rail; 4. Bolt;

[0024] 11. First horizontal angle steel; 12. First vertical angle steel; 13. First mounting hole; 14. Second mounting hole; 15. Bolt hole;

[0025] 21. Second vertical angle steel; 22. Second horizontal angle steel; 23. Vertical long hole; 24. Horizontal long hole;

[0026] 31. Longitudinal slot hole. Specific implementation mode

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] The limit switches of the crane's trolley and bridge are prone to poor contact and failure during operation, leading to safety accidents. The original mounting base of the limit switch cannot be adjusted, and the safety factor is low.

[0029] Based on the surveying, mapping, analysis and design drawings of the limit of the crane's trolley and bridge, the present utility model redesigned the mounting device of the limit switch and applied it in practice.

[0030] The present utility model provides a fixing device for the limit switches of the crane's trolley and bridge, which relates to the field of crane trolleys. The device of the present utility model is composed of upper, middle and lower parts of parts fixed by bolts, and the mounting position of the limit switch can be adjusted front-back, left-right and up-down according to the actual situation on site. The limit switch includes a travel switch and a proximity switch. The present utility model can install both a mechanical travel limit switch and a proximity switch. At the limit switches of the trolley and bridge on the main girder of the overhead crane, weld this device of the present utility model. Install the corresponding two switches according to the actual requirements on site. The present utility model can adjust the position of the limit switch at any time according to actual needs, achieving an accurate installation effect.

[0031] A fixing device for the limit switches of the crane's trolley and bridge of the present utility model includes: a first support frame 1, a second support frame 2 and a rail 3. The first support frame 1 is slidably connected above the second support frame 2, and the second support frame 2 is slidably connected on the rail 3. The rail 3 is fixed (welded) to the steel structure at the original limit switch of the crane's trolley and bridge track;

[0032] The first support frame 1 includes a first horizontal angle steel 11 arranged horizontally and a first vertical angle steel 12 arranged vertically. One end of the first horizontal angle steel 11 is perpendicularly bent and connected (welded connection is possible) to the upper end of the first vertical angle steel 12, and the first vertical angle steel 12 is slidably connected to the second support frame 2;

[0033] The first horizontal angle steel 11 is provided with a first mounting hole 13 and at least two second mounting holes 14. The second mounting holes 14 are arranged on both sides of the first mounting hole 13, and the first mounting hole 13 and the second mounting holes 14 are arranged in a longitudinal direction. The first mounting hole 13 is used for mounting a proximity switch, and the second mounting holes 14 are used for mounting travel switches. The proximity switch and the travel switch can be fixedly installed according to the existing methods.

[0034] Preferably, the second support frame 2 includes a second vertical angle steel 21 arranged vertically and a second horizontal angle steel 22 arranged horizontally. The lower end of the second vertical angle steel 21 is perpendicularly bent and connected (welded connection is possible) to one end of the second horizontal angle steel 22. The first vertical angle steel 12 is slidably connected to the inner side of the second vertical angle steel 21, and the second horizontal angle steel 22 is slidably connected to the track 3.

[0035] Preferably, at least one vertically elongated hole 23 is provided on the second vertical angle steel 21, and at least one bolt hole 15 is provided on the first vertical angle steel 12. Each bolt hole 15 is connected to each vertically elongated hole 23 by a bolt, and the first vertical angle steel 12 slides vertically relative to the second vertical angle steel 21 through the bolt and the vertically elongated hole 23. Specifically, two vertically elongated holes 23 are spaced and parallelly provided, and two bolt holes 15 are provided on the first vertical angle steel 12. The two bolt holes 15 are respectively connected to the two vertically elongated holes 23 by bolts and can move up and down vertically along the vertically elongated holes 23.

[0036] Preferably, at least one horizontally elongated hole 24 is provided on the second horizontal angle steel 22. A bolt 4 is connected in the horizontally elongated hole 24 in a mating manner, and the second horizontal angle steel 22 slides horizontally relative to the track 3 through the bolt 4 and the horizontally elongated hole 24. Specifically, two horizontally elongated holes 24 are spaced and parallelly provided, and one bolt 4 is connected in each of the two horizontally elongated holes 24. The second horizontal angle steel 22 can slide horizontally under the action of the bolt 4. The bolt 4 and the horizontally elongated hole 24 can move relatively horizontally.

[0037] Preferably, the track 3 adopts a C-shaped track (this track is a special-shaped steel C40 type track), and a longitudinal slot hole 31 is provided at the top. The bolt 4 is connected in the longitudinal slot hole 31 in a mating manner, and the second horizontal angle steel 22 slides longitudinally relative to the track 3 through the bolt 4 and the longitudinal slot hole 31. The two bolts 4 provided are both connected in the longitudinal slot hole 31, and the bolt 4 slides in the longitudinal slot hole 31.

[0038] Preferably, the second mounting hole 14 is an elongated hole, which is convenient for adjusting the mounting position of the travel switch. There are two second mounting holes 14, and both ends of the travel switch are connected to the two second mounting holes 14 by bolts.

[0039] In the utility model, through the vertical sliding of the first vertical angle steel 12 on the second vertical angle steel 21, the whole first support frame 1 drives the limit switch to move up and down; through the horizontal sliding of the horizontal long hole of the second horizontal angle steel 22 along the bolt 4 on the track 3, the second support frame 2 drives the first support frame 1 and the limit switch to move left and right; through the longitudinal sliding of the bolt 4 on the track 3 along the longitudinal slot 31, the second support frame 2 drives the first support frame 1 and the limit switch to move back and forth.

[0040] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fixing device for a limit switch of a vehicle, characterized in that: include: A first support frame (1), a second support frame (2) and a track (3), wherein the first support frame (1) is slidably connected to the top of the second support frame (2), the second support frame (2) is slidably connected to the track (3), and the track (3) is fixed to the steel structure of the crane trolley track; The first support frame (1) comprises a first transverse angle steel (11) arranged transversely and a first vertical angle steel (12) arranged vertically, one end of the first transverse angle steel (11) is connected to the upper end of the first vertical angle steel (12), and the first vertical angle steel (12) is slidably connected to the second support frame (2); The first transverse angle steel (11) is provided with a first mounting hole (13) and at least two second mounting holes (14), the second mounting holes (14) being arranged on both sides of the first mounting hole (13), and the first mounting hole (13) and the second mounting hole (14) being arranged in a longitudinal direction, the first mounting hole (13) being used for mounting a proximity switch, and the second mounting hole (14) being used for mounting a travel switch.

2. The fixing device for the limit switch of a vehicle or large vehicle according to claim 1 is characterized in that: The second support frame (2) comprises a second vertical angle steel (21) arranged vertically and a second transverse angle steel (22) arranged transversely, the lower end of the second vertical angle steel (21) is connected to one end of the second transverse angle steel (22), the first vertical angle steel (12) is slidably connected to the inner side of the second vertical angle steel (21), and the second transverse angle steel (22) is slidably connected to the track (3).

3. The fixing device for the limit switch of a vehicle or large vehicle according to claim 2 is characterized in that: The second vertical angle steel (21) is provided with at least one vertical long hole (23), the first vertical angle steel (12) is provided with at least one bolt hole (15), the bolt hole (15) is connected to the vertical long hole (23) via a bolt, and the first vertical angle steel (12) vertically slides relative to the second vertical angle steel (21) via the bolt and the vertical long hole (23).

4. The fixing device for the limit switch of a vehicle or large vehicle according to claim 2 is characterized in that: At least one transverse long hole (24) is formed on the second transverse angle steel (22), a bolt (4) is connected in the transverse long hole (24), and the second transverse angle steel (22) slides transversely relative to the track (3) via the bolt (4) and the transverse long hole (24).

5. The fixing device for the limit switch of a vehicle or large vehicle according to claim 4 is characterized in that: The track (3) is a C-shaped track with a longitudinal slot (31) on the top. The bolt (4) is connected in the longitudinal slot (31). The second transverse angle steel (22) slides longitudinally relative to the track (3) through the bolt (4) and the longitudinal slot (31).

6. The fixing device for the limit switch of a vehicle or large vehicle according to claim 1, characterized in that: The second mounting hole (14) is a long hole.

Images