Movable safety limiting collision ruler device of bridge girder erection machine

Abstract

The utility model relates to the field of machinery, in particular to a movable safety limiting collision ruler device of a bridge girder erection machine. The whole device is composed of a bottom fixing support (1) and a contact rod with a scale collision contact inclined rod (4). A gap (7) is formed in the middle of the fixed support (1) and used for being clamped and fixed to a rail. The section of the fixed support (1) is in a U shape, a fixed bolt (5) capable of being squeezed downwards is further arranged on the fixed support (1), and a rotating handle (6) is arranged at the end of the fixed bolt (5). The contact rod comprises a ruler colliding vertical rod (2), the bottom of the ruler colliding vertical rod (2) is welded on the upper surface of the fixed support (1), a ruler colliding cross rod (3) is welded above the ruler colliding vertical rod (2), and an inclined ruler colliding contact inclined rod (4) is welded on one side of the ruler colliding cross rod (3); and the collision ruler contact inclined rod (4) is convenient for smoothly guiding a travel switch contact wheel into the lower end of the collision ruler cross rod (3).

Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to a movable safety limit striking ruler device for a bridge erecting machine. Background Art

[0002] During the operation of the bridge erection machine, there is a very important safety device, which is a travel limit control device composed of a travel switch and a safety anti-collision ruler to prevent the running trolley or crane from exceeding the operating limit or the running track. The safety collision ruler is generally made of angle steel, with a lever with a certain slope at the end, which plays a passive triggering emergency braking role in the system. When the trolley and the car are about to reach the end, the travel switch will hit the safety collision ruler, which will cause the running motor to lose power and the trolley or the car to stop. This device is the safety collision ruler.

[0003] At present, bridge erection machines often use primitive and bulky safety rulers during construction. The safety rulers need to be welded on the track or on the baffles at both ends of the track. This also leads to the fact that construction workers are often reluctant to correctly install and use the safety rulers, which brings greater safety risks and hidden dangers to the installation of bridge cranes. As early as August 25, 1994, Li Dibing published "Correct Installation and Selection of Safety Rulers".

[0004] On May 9, 2024, the search was conducted in the Chinese Patent Publication Database with "safety and limit and impact ruler" as the abstract keywords, and the option to allow synonym expansion was checked, and the following documents were found. These documents are completely different from the basic design of this patent.

[0005] CN219098545U A metallurgical crane trolley limit device; CN215666662U An adjustable mechanical limit mechanism for a crane trolley; CN214828774U A stacker operation speed limit and limit device; CN215215008U A device to prevent the internal limit failure of the blast furnace cold air vent valve; CN211545695U A crane trolley limit device; CN205472308U Double-beam crane trolley limit structure; CN203889917U Bridge and gantry cranes Mobile trolley towing cable positioning device; CN203728875U A molten iron tank clearance measuring device; CN203065024U Movable double-beam crane trolley limiting device; CN203021224U Cantilever crane cross anti-collision device; CN102923593A Cantilever crane cross anti-collision device and method; CN202379614U Driving maintenance anti-collision device; CN201809069U Adjustable cross-type heavy-duty limit switch based on C-rail installation; CN201713253U A heavy hammer type limit device.

[0006] The specific problems mainly include: 1. The equipment is not installed with a safety bumper. Welding and fixing the installation of the safety bumper is rather troublesome and the position needs to be frequently changed. The operator completely controls the start and stop of the trolley based on construction operation experience. 2. Since the equipment is frequently disassembled and installed during construction, due to its special structure and installation position, the safety bumper often collides and gets damaged or wears out during use. Over time, the operating personnel no longer repair or use the damaged or worn-out safety bumper, or make a simple baffle to replace the bumper, and completely rely on experience to operate and control, thus completely losing its safety protection function. 3. The installation setting or usage method of the safety bumper is incorrect, resulting in the safety bumper not functioning well, either delaying, advancing, or not functioning at all, which极易 leads to derailment of the operating facilities and causes safety accidents such as equipment damage and casualties. Utility Model Content

[0007] Purpose of the utility model: To provide a movable safety limit bumper device for a bridge erecting machine with better effects. The specific purpose can be seen in the multiple substantial technical effects in the specific implementation part.

[0008] To achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A movable safety limit bumper device for a bridge erecting machine, characterized in that

[0010] The overall device is composed of a bottom fixed support 1 and a contact rod with a bumper contact diagonal rod 4;

[0011] The middle of the fixed support 1 contains a gap 7 for clamping and fixing on the track; the cross-section of the fixed support 1 is in a "C" shape and is also provided with a fixing bolt 5 that can be pressed downward. The end of the fixing bolt 5 is provided with a rotating handle 6;

[0012] The contact rod includes a bumper vertical rod 2, the bottom of the bumper vertical rod 2 is welded on the upper surface of the fixed support 1, a bumper cross rod 3 is welded above the bumper vertical rod 2, and an inclined bumper contact diagonal rod 4 is welded on one side of the bumper cross rod 3;

[0013] The bumper contact diagonal rod 4 facilitates the smooth introduction of the travel switch contact wheel to the lower end of the bumper cross rod 3.

[0014] A further technical solution of the utility model lies in that the inclination angle between the bumper contact diagonal rod 4 and the horizontal plane is 30 degrees.

[0015] A further technical solution of the utility model lies in that the bottom fixed support with dimensions of 300mm * 150mm * 60mm is welded by two 10mm-thick steel plates, and a long strip-shaped steel plate is welded flush with the longest sides of the two steel plates to rigidly connect the upper and lower steel plates.

[0016] A further technical solution of the utility model is that the material of the vertical rod 2 of the impact ruler is a 60mm*60mm angle steel, and the height is set to 40-60mm.

[0017] A further technical solution of the utility model is that the impact ruler cross bar 3 is a 60mm*60mm angle steel parallel to the base, and the length is set to 200-500mm.

[0018] A further technical solution of the present invention is that the fixing supports 1 include two and are symmetrically arranged, so that the installation direction can be adjusted.

[0019] The utility model adopting the above technical scheme has the following beneficial effects compared with the prior art: it is a safe and reliable, efficient, environmentally friendly, easy to process, and low-cost safety protection device for bridge erection machines, and has great engineering promotion value and social and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to further illustrate the present invention, the following is further described in conjunction with the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the utility model structure;

[0022] Figure 2 It is a partial structural diagram of the utility model;

[0023] Figure 3 This is a front structural diagram of the invention;

[0024] Figure 4 It is a side structural diagram of the invention;

[0025] Figure 5 A diagram showing a further improvement of the invention;

[0026] Among them: 1-fixed base; 2-vertical rod of the impact ruler; 3-horizontal rod of the impact ruler; 4-diagonal rod of the impact ruler contacting; 5-fixing bolt; 6-turning handle; 7. gap. DETAILED DESCRIPTION

[0027] The present utility model will be further illustrated below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present utility model. In addition, unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0029] This patent provides multiple parallel solutions. For different expressions, they are improvement solutions or parallel solutions based on the basic solution. Each solution has its own unique features. In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. The fixing method not described in the text can be any one of screw fixing, bolt fixing or glue bonding, etc.

[0030] Embodiment 1: In combination with all the accompanying drawings; a movable safety limit impact ruler device for a bridge erection machine, characterized in that

[0031] The overall device is composed of a bottom fixed support 1 and a contact rod having an impact ruler contact inclined rod 4;

[0032] The middle of the fixed support 1 includes a gap 7 for clamping and fixing on the track; the cross-section of the fixed support 1 is in a "C" shape and there is also arranged a fixing bolt 5 that can be pressed downward, and a rotating handle 6 is arranged at the end of the fixing bolt 5;

[0033] The contact rod comprises a vertical rod 2, the bottom of which is welded to the upper surface of the fixed support 1, a horizontal rod 3 is welded above the vertical rod 2, and an inclined contact rod 4 is welded on one side of the horizontal rod 3;

[0034] The impact ruler contact inclined rod 4 facilitates the smooth introduction of the travel switch contact wheel into the lower end of the impact ruler cross rod 3. The substantial technical effect and implementation process of the technical solution herein, i.e., the basic function, are as follows:

[0035] First, according to the requirements of different construction conditions, the running track of the bridge erection machine should be leveled and free of debris. The maximum position that the running trolley needs to reach and the actual safe distance for stopping the operation should be accurately measured. According to the handle position of the touch-type safety travel switch, the installation position of the safety impact ruler should be determined. The protruding edge of the running track should be clamped through the open base. After adjusting the insertion depth, the fixing bolts with two rotating handles welded on the base should be used to fix the entire safety impact ruler. There should be no shaking or displacement.

[0036] After installation, a contact test stop test should be carried out to ensure that the front end of the impact ruler can smoothly contact the travel switch. At the same time, it should be ensured that the contact width of the transverse rod can ensure good and continuous contact with the travel switch, so that the operating mechanism can decelerate smoothly until it stops safely.

[0037] When the position of the safety ruler needs to be adjusted, first loosen the two fixing bolts so that the safety ruler can slide along the edge of the track to the appropriate position and then fix it; if the distance to be moved is longer, completely loosen the two fixing bolts, remove the safety ruler as a whole, and then install it to the appropriate position for work.

[0038] Embodiment 2: As a further improved solution or parallel solution or optional independent solution, the angle of inclination of the impact ruler contacting the inclined rod 4 and the horizontal plane is 30 degrees. The substantial technical effect and the implementation process of the technical solution here, i.e. the basic function, are as follows: the overall device is composed of a bottom fixed support welded from steel plates and a contact rod welded from angle steel with a certain upward angle. The bottom fixed support with a size of 300*150*60mm is welded from two 10mm thick steel plates. A long strip of steel plate is welded on the longest sides of the two steel plates to rigidly connect the upper and lower steel plates to ensure that the welding has sufficient strength and rigidity. A 60*60mm angle steel is vertically welded in the middle of the steel plate base as a vertical rod of the impact ruler, and the height is generally set to 40-60mm according to the height of different travel switches. A circular hole with a diameter of 10mm is opened on the upper steel plates on both sides of the vertical rod of the impact ruler, and an M10 nut is welded above the circular hole to facilitate the smooth passage of the M10 bolt. Select two M10*50 bolts with a strength of 8.8, and weld a section of round steel on the bolts as a rotating handle. By rotating the handle, rotate the screw into the round hole as a fixing device for the entire safety impact ruler. Weld an angle steel of the same specification parallel to the base at the upper end of the vertical impact ruler vertical rod. The length is generally set to 200-500mm based on the contact braking distance. Then weld a short angle steel of the same specification with an upward inclination angle of 30 degrees at the front end of the horizontal angle steel to facilitate the smooth introduction of the travel switch contact wheel into the lower end of the horizontal angle steel.

[0039] Embodiment 3: As a further improved solution or parallel solution or optional independent solution, the bottom fixed support with a size of 300mm*150mm*60mm is welded from two 10mm thick steel plates, and a long strip of steel plate is welded to the longest sides of the two steel plates to rigidly connect the upper and lower steel plates. The substantial technical effect and its implementation process, i.e., the basic function, of the technical solution here are as follows: Similar sizes are within the protection scope of this patent.

[0040] Embodiment 4: As a further improved solution or parallel solution or optional independent solution, the material of the vertical rod 2 of the impact ruler is 60mm*60mm angle steel, and the height is set to 40-60mm. The substantial technical effect and implementation process of the technical solution here, i.e. the basic function, are as follows: Similar sizes are within the protection scope of this patent.

[0041] Embodiment 5: As a further improved solution or parallel solution or optional independent solution, the cross bar 3 of the impact ruler is a 60mm*60mm angle steel parallel to the base, and the length is set to 200-500mm. The substantial technical effect and implementation process of the technical solution here, i.e. the basic function, are as follows: Similar dimensions are within the protection scope of this patent.

[0042] Embodiment 6: As a further improved solution or parallel solution or optional independent solution, the fixed support 1 includes two and is symmetrically arranged, so that the installation direction can be adjusted. The substantial technical effect of the technical solution here and its implementation process, i.e., the basic function, are as follows: Similar dimensions are within the protection scope of this patent.

[0043] In general: bridge erection machines often use primitive and bulky safety rulers during construction. The safety rulers need to be welded on the track or on the baffles at both ends of the track. The construction efficiency is low and it is time-consuming and labor-intensive. This also leads to the fact that construction workers are often unwilling to correctly install and maintain the safety rulers, which brings greater safety risks and hidden dangers to the installation of bridge erection beams, and seriously causes safety accidents such as equipment overturning, derailment and injury. In order to fundamentally solve the above problems, after a lot of experiments and improvements, a mobile safety ruler was invented. The technical problem that can be solved is to provide a simple, convenient and efficient mobile and fixed safety ruler to replace the original old fixed welded safety ruler. It is a safe, reliable, efficient, environmentally friendly, easy to process and low-cost safety protection device for bridge erection machines, which has great engineering promotion value and social and economic benefits.

[0044] Innovatively, each of the above effects exists independently, and a set of structures can be used to combine the above results.

[0045] It should be noted that the multiple solutions provided by this patent include the basic solution itself, which are independent of each other and do not restrict each other, but they can also be combined with each other without conflict to achieve multiple effects together.

[0046] The basic principle, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the protection required.

Claims

1. A movable safety limit impact ruler device for a bridge erecting machine, characterized in that the overall device is composed of a bottom fixed support (1) and a contact rod with an impact ruler contact inclined rod (4); the middle of the fixed support (1) includes a gap (7) for clamping and fixing on the track; the cross-section of the fixed support (1) is in the shape of "匚", and a fixing bolt (5) capable of pressing downward is also arranged thereon, and a rotating handle (6) is arranged at the end of the fixing bolt (5); the contact rod includes an impact ruler vertical rod (2), the bottom of the impact ruler vertical rod (2) is welded on the upper surface of the fixed support (1), an impact ruler cross rod (3) is welded above the impact ruler vertical rod (2), and an inclined impact ruler contact inclined rod (4) is welded on one side of the impact ruler cross rod (3); the impact ruler contact inclined rod (4) facilitates the smooth introduction of the travel switch contact wheel to the lower end of the impact ruler cross rod (3).

2. A movable safety limit striker device for a bridge erecting machine as claimed in claim 1, characterized in that: The inclination angle between the impact ruler contact inclined rod (4) and the horizontal plane is 30 degrees.

3. A movable safety limit striker device for a bridge erecting machine as claimed in claim 1, characterized in that: The bottom fixed support with dimensions of 300mm * 150mm * 60mm is welded by two 10mm-thick steel plates. A long strip-shaped steel plate is welded along the longest sides of the two steel plates to rigidly connect the upper and lower steel plates.

4. A movable safety limit striker device for a bridge erecting machine as claimed in claim 1, characterized in that: The material of the impact ruler vertical rod (2) is an angle steel of 60mm * 60mm, and the height is set to 40 - 60mm.

5. A movable safety limit striker device for a bridge erecting machine as claimed in claim 1, characterized in that: The impact ruler cross rod (3) is an angle steel of 60mm * 60mm parallel to the base, and the length is set to 200 - 500mm.

6. A movable safety limit striker device for a bridge erecting machine as claimed in claim 1, characterized in that: There are two fixed supports (1) and they are symmetrically arranged, so the installation direction can be adjusted.

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