Device for hoisting test of railway rescue crane

Abstract

A device for a hoisting test of a railway rescue crane comprises a hanging bracket, a main weight connected to the hanging bracket, a hanging piece used for connecting the main weight and the hanging bracket in series, and a fixing pin used for fixing the hanging piece. The main weight is provided with a hanger mounting seat hole; the hanger penetrates through the hanger mounting seat hole, and the upper end is connected with the hanger; a hanging beam connected with a crane is arranged on the hanging bracket; the lifting piece comprises a lower lifting part matched with the lifting piece mounting seat hole and an upper connecting part matched with the lifting piece assembling hole; the lower surface of the hoisting part is provided with a hoisting part connecting hole connected with the upper connecting part of the adjacent hoisting part; the connecting part of the hanging piece is provided with an upper fixing pin hole for assembling the fixing pin; and the hoisting part of the hoisting piece is provided with a lower fixing pin hole communicated with the hoisting piece connecting hole. The hanging bracket has a fixed tonnage and can be used as a weight, the plurality of main weights are arranged, and the adjacent main weights are connected through hanging pieces and are flexibly combined, so that the requirements of different tonnages are met. And during hoisting, the hoisting piece bears a hoisting load, and the weight does not bear the hoisting load, so that the service life of the weight can be prolonged.

Description

Technical Field

[0001] The utility model relates to a device for the load test of a railway rescue crane. Background Art

[0002] The NS1600 type railway rescue crane is a special-purpose vehicle dedicated to lifting and clearing railway locomotives, rolling stock or other obstacles in railway accidents. It has a large lifting tonnage and various working conditions. The inventor's research found that when conducting a load test, key factors affecting the efficiency and quality of the load test of the rescue crane include the convenience and reliability of the combination of weights under various working conditions after selection, the convenience and reliability of the connection between the overall weights and the lifting beam of the rescue crane, and whether there is an interference problem between the size and height of the combined weights and the vehicle body or the ground during the load test under various extreme working conditions. Currently, there is no suitable weight for the load test of the railway rescue crane when it is repaired and put into the factory, and there is an urgent need to design a set of weights that meet the test requirements for the load test of the railway rescue crane when it is repaired and put into the factory and before leaving the factory. Summary of the Invention

[0003] The invention object of the utility model is to overcome the above deficiencies of the prior art, and provide a device for the load test of a railway rescue crane to meet the test requirements of various working conditions of the NS1600 type railway rescue crane for lifting products.

[0004] The technical solution of the utility model is as follows: A device for the load test of a railway rescue crane includes a hanging frame, a main weight connected to the hanging frame, a hanging member for connecting the main weight and the hanging frame in series, and a fixing pin for fixing the hanging member;

[0005] A hanging member mounting seat hole and a fixing pin hole for assembling the fixing pin and communicating with the hanging member mounting seat hole are provided on the main weight; the hanging member passes through the hanging member mounting seat hole, and the upper end is connected to the hanging frame;

[0006] A hanging member assembly hole and a hanging frame fixing pin hole for assembling the fixing pin and communicating with the hanging member assembly hole are provided on the hanging frame;

[0007] A lifting beam for connecting with the crane is provided on the hanging frame; a lifting groove for assembling the crane hook is provided on the lifting beam; a hook fixing pin hole for assembling a hook fixing pin for a hook that is connected in cooperation with the lifting groove is provided on the lifting beam;

[0008] The hanging member includes a lower lifting part adapted to the hanging member mounting seat hole and an upper connecting part adapted to the hanging member assembly hole; a hanging member connecting hole for connecting with the upper connecting part of the adjacent hanging member is opened on the lower surface of the lifting part; an upper fixing pin hole for assembling the fixing pin is provided on the connecting part of the hanging member; a lower fixing pin hole communicating with the hanging member connecting hole is provided on the lifting part of the hanging member.

[0009] There are multiple main weights, and adjacent main weights are connected by hanging members.

[0010] The hanging frame has a fixed tonnage and can be used as a weight.

[0011] Anti-detachment pins for preventing the fixing pins from falling off are provided on both the hanging frame and the main weights; a retaining edge for mating with the large head of the anti-detachment pin is provided at the outer end of the fixing pin; a notch for mating with the large head of the anti-detachment pin to facilitate the quick installation and removal of the fixing pin is provided on the retaining edge.

[0012] The hanging beam has a cross-shaped structure; hanging beam reinforcing ribs are provided on the hanging beam; multiple triangular reinforcing ribs are provided between the hanging beam and the hanging frame.

[0013] The hanging frame includes a bottom plate and a fence connected to the outer edge of the bottom plate.

[0014] Multiple installation and positioning rods for connecting auxiliary weights are provided on the hanging frame; the auxiliary weights have a disc-shaped structure, and an installation hole adapted to the installation and positioning rods is provided in the middle.

[0015] A radial locking pin hole for assembling a locking pin to prevent the auxiliary weight from falling off is provided at the upper end of the installation and positioning rod.

[0016] The main weights have multiple specifications of 30t, 20t, and 10t. The structures of the main weights of various specifications are the same, only the thicknesses are different.

[0017] The auxiliary weight weighs 500 kg.

[0018] The weights of this utility model are made of castings, formed according to the designed dimensions, and the surfaces are treated with rust prevention. Special lifting parts are used for lifting the weights, and the lifting parts are installed in the installation holes of each weight. The weights can be flexibly combined to meet different tonnage requirements. When lifting a set of weights, the lifting parts bear the lifting load, and the weights do not bear the lifting load, which can extend the service life of the weights. The connection of the weight lifting parts uses fixed pins, and a proper clearance is reserved between the fixed pins and the pin holes to ensure automatic adjustment of the clearance for the connection of the weights, making it convenient to insert and remove. The lifting beam of the weights adopts a cross-shaped structure. The lower part of the lifting beam is combined with the lifting parts at the upper end of the weights, and the fixed pins are inserted. The weight lifting beam itself has a fixed tonnage and can be used as a weight. The lifting beam is applicable to two configurations of the No. 32 hook of the NS1600 crane and the No. 40 hook of the NS2000 crane. When using the No. 32 hook for hoisting, select and match the No. 32 hook fixed pin for fixation. When using the No. 40 hook for hoisting, select and match the No. 40 hook fixed pin for fixation. Place the corresponding crane hook into the lifting slot of the lifting beam, insert the hook fixed pin after aligning the pin holes, and rotate a certain angle to enter the anti-drop pin to prevent the hook fixed pin from falling off. The combined height of the weights under various working conditions can meet the requirements of the height for gauge repair during hoisting. The weights are reserved with interfaces for subsequent addition of weights to increase the combined tonnage, and can be used for the load test of the NS2000 rescue crane. The periphery of various weights is designed with lifting lugs, which are only used for hoisting these weights, facilitating the lifting and assembly of individual weights. Brief Description of the Drawings

[0019] 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 use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a three-dimensional structure schematic diagram of the present utility model.

[0021] Figure 2 It is the front view of the present utility model.

[0022] Figure 3 It is a top view structure schematic diagram of the present utility model.

[0023] Figure 4 It is a structure schematic diagram of the lifting frame.

[0024] Figure 5 It is the top view of the lifting frame.

[0025] Figure 6 For Figure 5 A - A cross-sectional view of

[0026] Figure 7 is Figure 6 the sectional view taken along line B-B.

[0027] Figure 8 is the top view of the weight.

[0028] Figure 9 is Figure 8 the sectional view taken along line A-A.

[0029] Figure 10 is Figure 8 the sectional view taken along line B-B.

[0030] Figure 11 is the structural schematic diagram of the hanger.

[0031] Figure 12 is Figure 11 the sectional view taken along line A-A.

[0032] Figure 13 is the structural schematic diagram of the fixing pin.

[0033] Figure 14 is Figure 13 the left view.

[0034] Figure 15 is the structural schematic diagram of the anti-detaching pin.

[0035] Figure 16 is Figure 15 the sectional view taken along line A-A.

[0036] In the figure, there are hanger 1, bottom plate 11, fence 12, lifting part assembly hole 101, hanger fixing pin hole 102, lifting beam 103, lifting groove 104, hook fixing pin hole 105, lifting beam stiffener 106, triangular stiffener 107, installation positioning rod 108, radial locking pin hole 1081, main weight 2, lifting part mounting seat hole 201, fixing pin hole 202, lifting part fixing pin 203, anti-rotation pin hole 204, lifting part 3, hoisting part 301, connecting part 302, lifting part connecting hole 303, lower fixing pin hole 304, upper fixing pin hole 305, anti-rotation pin hole 306, fixing pin 4, anti-detaching pin 5, auxiliary weight 6, installation hole 601, locking pin 7, hook fixing pin 8, anti-detaching pin 81, suspension pin 9. Specific embodiments

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way restricts the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0038] Known technologies, methods, and devices for those of ordinary skill in the relevant fields may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification.

[0039] Figure 1 、 2 In FIGS. 3 and 4, the present invention includes a suspension bracket 1, a main weight 2 connected to the suspension bracket 1, a suspension member 3 for connecting the main weight 2 and the suspension bracket 1 in series, and a fixing pin 4 for fixing the suspension member 3. The suspension bracket 1 includes a bottom plate 11 and a fence 12 connected to the outer edge of the bottom plate 11. The suspension bracket 1 is provided with a suspension member assembly hole 101 and a suspension bracket fixing pin hole 102 for assembling the fixing pin 4 and communicating with the suspension member assembly hole 101. The suspension bracket 1 is provided with a suspension beam 103 for connecting with a crane. The suspension beam 103 is provided with a lifting groove 104 for assembling the crane hook. The suspension beam 103 is provided with a hook fixing pin hole 105 for assembling a hook fixing pin 8. The hook fixing pin 8 is connected with the lifting groove 104 to cooperate in connecting the hook. The main weights are multiple, and adjacent main weights are connected by the suspension member 3. Four suspension members 3 are fixed on each main weight. The main weight 2 has various specifications of 30t, 20t, and 10t. The structures of the main weights of various specifications are the same, only the thicknesses are different. A lifting pin 9 is designed on the periphery of the weight. The lifting pin 9 is only used for the lifting of this weight, which is convenient for the lifting and assembly of a single weight.

[0040] The suspension bracket 1 is provided with a plurality of installation positioning rods 108 for connecting the auxiliary weight 6. The auxiliary weight 6 has a disc-shaped structure and weighs 500 kg. The middle part of the auxiliary weight 6 is provided with an installation hole 601 adapted to the installation positioning rod 108. The upper end of the installation positioning rod 108 is provided with a radial locking pin hole 1081 for assembling a locking pin 7 to prevent the auxiliary weight 6 from falling off. The locking pin 7 can be a bolt.

[0041] Figure 5 、 6 In FIGS. 7, the suspension beam 103 has a cross-shaped structure. The suspension beam 103 is provided with a suspension beam reinforcing rib 106, and there are a plurality of triangular reinforcing ribs 107 between the suspension beam 103 and the suspension bracket 1.

[0042] Figure 8 、 9In FIGS. 10, on the main weight 2, there are provided a suspension member mounting seat hole 201 and a fixing pin hole 202 that communicates with the suspension member mounting seat hole 201 for assembling the fixing pin 4; the suspension member 3 passes through the suspension member mounting seat hole 201, and the upper end is connected to the suspension bracket 1. The suspension bracket 1 has a fixed tonnage and can be used as a weight. On the main weight 2, there is provided an anti-rotation pin hole 204 for assembling the anti-rotation pin, and the anti-rotation pin is installed in the anti-rotation pin hole by threading to fix the suspension member 3.

[0043] Figure 11 、 12 In FIGS. 15 and 16, the suspension member 3 includes a lower hoisting portion 301 adapted to the suspension member mounting seat hole 201 and an upper connecting portion 302 adapted to the suspension member assembly hole 101. On the lower surface of the hoisting portion 301, there is provided a suspension member connection hole 303 for connecting to the connecting portion 302 on the adjacent suspension member 3. On the connecting portion 302 of the suspension member 3, there is provided an upper fixing pin hole 305 for assembling the fixing pin. On the hoisting portion 301 of the suspension member 3, there is provided a lower fixing pin hole 304 that communicates with the suspension member connection hole 303. On the suspension member 3, there is provided an anti-rotation pin hole 306 for assembling the anti-rotation pin, and the anti-rotation pin is installed in the anti-rotation pin hole by threading to fix the suspension member 3.

[0044] Figure 13 、 14 In FIGS. 15 and 16, on both the suspension bracket 1 and the main weight 2, there is provided an anti-drop pin 5 for preventing the fixing pin 4 from falling off. On the outer end of the fixing pin 4, there is provided a retaining edge 401 that cooperates with the large head portion 501 of the anti-drop pin. On the retaining edge 401, there is provided a notch 4011 that is adapted to the large head portion 501 of the anti-drop pin to facilitate the quick installation and removal of the fixing pin. The rear end of the fixing pin 4 is connected with a handle 402.

[0045] The device for the lifting weight test of the rescue crane provided by the present utility model mainly consists of a lifting beam 1, a hook fixing pin 8, an anti-drop pin 81, a suspension member fixing pin 203, a 30t weight, a 30t suspension member, a weight fixing pin 8, a 20t weight, a 20t suspension member, a 10t weight, a 10t suspension member, a 500kg auxiliary weight 6, a locking pin 7, etc. Among them, the installation and use methods of various fixing pins and weight suspension members are the same, and only one of each is selected for the installation and use description.

[0046] The 20t suspension member 10 is fixed in the weight mounting seat hole with bolts, and 4 identical 20t suspension members are fixed on the weight. When combining the weights, the suspension member is sleeved into the hole of the previous weight suspension member, and the weight fixing pin 8 is inserted to complete the combination of the weights. The fixing pin has an anti-drop pin. Rotate the fixing pin to clamp the retaining edge between the large head portion of the anti-drop pin and the weight, which can prevent the fixing pin from falling off. Other weights are assembled and installed according to this method.

[0047] The suspension beam 103 adopts a cross-shaped structure. The lower part of the suspension beam is combined with the lifting piece at the upper end of the weight, and the lifting piece fixing pin is inserted. Place the No. 32 hook of NS1600 into the lifting slot 104 of the suspension beam 1. After aligning with the lifting hole, insert 2 pieces of hook fixing pins 8 respectively, and insert and fix the anti-drop pin 81. The NS1600 rescue crane is a double-hook lifting crane.

Claims

1. A device for testing the lifting weight of a railway rescue crane, characterized in that: It comprises a hanger (1), a main weight (2) connected to the hanger (1), a hanger (3) used for connecting the main weight (2) and the hanger (1) in series, and a fixing pin (4) used for fixing the hanger (3); The main weight (2) is provided with a hanger mounting seat hole (201) and a fixing pin hole (202) which is in communication with the hanger mounting seat hole (201) and is used to assemble a fixing pin (4); the hanger (3) passes through the hanger mounting seat hole (201) and the upper end is connected to the hanger (1); The hanger (1) is provided with a hanger assembly hole (101) and a hanger fixing pin hole (102) which is in communication with the hanger assembly hole (101) and is used to assemble a fixing pin (4); The hanger (1) is provided with a hanging beam (103) for connecting to a crane; the hanging beam (103) is provided with a lifting groove (104) for assembling a hanging hook of the crane; the hanging beam (103) is provided with a hanging hook fixing pin hole (105) for assembling a hanging hook fixing pin; The hanging piece (3) comprises a lower hanging part (301) adapted to the hanging piece mounting seat hole (201), and an upper connecting part (302) adapted to the hanging piece assembly hole (101); a hanging piece connecting hole (303) for connecting to the upper connecting part (302) of an adjacent hanging piece (3) is provided on the lower surface of the hanging part (301); an upper fixing pin hole (305) for assembling a fixing pin is provided on the connecting part (302) of the hanging piece (3); and a lower fixing pin hole (304) is provided on the hanging part (301) of the hanging piece (3) and is communicated with the hanging piece connecting hole (303).

2. The device for testing the lifting weight of a railway rescue crane according to claim 1, characterized in that: There are multiple main weights, and adjacent main weights are connected via hanging pieces (3).

3. The railway rescue crane hoisting test device according to claim 1, characterized in that: The hanger (1) has a fixed tonnage and can be used as a weight.

4. The railway rescue crane hoisting test device according to claim 1, characterized in that: The hanger (1) and the main weight (2) are both provided with an anti-drop pin (5) for preventing the fixing pin (4) from falling off; the outer end of the fixing pin (4) is provided with a retaining edge (401) that cooperates with the large head (501) of the anti-drop pin; and the retaining edge (401) is provided with a notch (4011) that is adapted to the large head (501) of the anti-drop pin for facilitating quick removal of the fixing pin.

5. The railway rescue crane hoisting test device according to claim 1, characterized in that: The suspension beam (103) is in a cross-shaped structure; a suspension beam reinforcement rib (106) is provided on the suspension beam (103); and a plurality of triangular reinforcement ribs (107) are provided between the suspension beam (103) and the hanger (1).

6. The railway rescue crane hoisting test device according to claim 1, characterized in that: The hanger (1) comprises a bottom plate (11) and a fence (12) connected to the outer edge of the bottom plate (11).

7. The railway rescue crane hoisting test device according to claim 1, characterized in that: The hanger (1) is provided with a plurality of mounting positioning rods (108) for connecting the auxiliary weights (6); the auxiliary weights (6) are of a round pancake-shaped structure, and a mounting hole (601) adapted to the mounting positioning rods (108) is provided in the middle thereof.

8. The railway rescue crane hoisting test device according to claim 7, characterized in that: The upper end of the installation positioning rod (108) is provided with a radial locking pin hole (1081) for assembling a locking pin (7) to prevent the auxiliary weight (6) from falling off.

9. The railway rescue crane hoisting test device according to claim 1, characterized in that: The main weight (2) has various specifications, such as 30 t, 20 t, and 10 t. The main weights of various specifications have the same structure and differ only in thickness.

10. The railway rescue crane hoisting test device according to claim 7, characterized in that: The auxiliary weight weighs 500 kg.

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