Cart end beam connected through n-shaped flexible connecting beam

Abstract

The utility model discloses a cart end beam connected through an n-shaped flexible connecting beam. The cart end beam comprises two main beam end beams and the n-shaped flexible connecting beam, the two main beam end beams are fixed to the ends, on the same side, of the two parallel main beams respectively, each main beam end beam comprises an end beam body and suspension wheel sets, the end beam bodies are fixed to the top faces of the main beams and arranged on the periphery of the cart track in a sleeving mode, the suspension wheel sets are symmetrically located on the two sides of the end beam bodies, and the suspension wheel sets are used for achieving movement of the main beams on the cart track; the connecting beam is arranged between two end beam bodies on a cart track and comprises vertical beams fixed on the top surfaces of the end beam bodies and a cross brace fixed between the two vertical beams and parallel to the cart track. The n-shaped connecting beams equally divide the bending moment, the inclination degree of the main beam end beams is reduced, wheels are not separated from rails, and the cart runs smoothly; meanwhile, the trolley can be more stable through supporting and buffering of the n-shaped connecting beam; and the n-shaped connecting beam is connected with the two main beam end beams, so that the stress of corresponding fixing bolts is indirectly reduced, and the consumption of related components is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of suspended double-beam cranes, in particular to a trolley end beam connected by an N-type flexible connecting beam. Background Art

[0002] The traditional suspended double-beam crane includes two parallel main beams, between which a trolley with a lifting mechanism is suspended. The trolley is located below the main beam and moves along the length of the main beam. The two main beams and the trolley end beams on both sides form a trolley, which moves along two I-shaped trolley tracks perpendicular to the main beams. The traditional trolley end beams are split, that is, there is a main beam end beam on each end of the same side of the two main beams, there is no connection between the two main beam end beams, and there is a suspension wheel set at each end of each main beam end beam. When the crane trolley is loaded, it will apply tension to the main beam. The tension on the inside of the main beam is greater than the tension on the outside of the main beam. When the trolley load increases to a certain extent or the trolley is running, the increase in tension will cause the main beam and the main beam end beam connected to it to tilt, causing the wheels of the outer wheel set of the main beam end beam to not touch the ground, affecting the operation of the trolley. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a connected trolley end beam, that is, to provide a connection method for the main beam end beam to support two main beam end beams on the same side to avoid the situation where the wheels do not touch the ground.

[0004] The utility model provides a trolley end beam connected by an n-type flexible connecting beam, which is symmetrically arranged at the two ends of two parallel main beams, and is used to realize the connection between the two main beams and the trolley track; it is characterized in that it includes two main beam end beams and an n-type flexible connecting beam; wherein,

[0005] The two main beam end beams are respectively arranged at one end of the two main beams on one of the trolley tracks; the main beam end beams include an end beam body fixedly arranged on the top surface of the corresponding main beam, and the end beam body is sleeved on the circumferential outer side of the corresponding trolley track; the end beam body is symmetrically arranged with a suspension wheel group on both sides along the length direction of the trolley track, which is used to realize the movement of the main beam on the trolley track;

[0006] The connecting beam is arranged between the two end beam bodies on one of the trolley tracks, and includes a vertical beam fixedly arranged on the top surface of the end beam body, and a horizontal brace parallel to the trolley track is fixedly arranged between the two vertical beams.

[0007] Furthermore, the end beam body is U-shaped, and the upper ends of the two side plates of the U-shaped end beam body are bent inwards to prevent it from falling off.

[0008] Furthermore, reinforcement brackets are fixedly provided on the outer sides of the two side plates of the end beam body to reinforce the connection between the end beam body and the main beam.

[0009] Furthermore, the suspension wheel group includes a U-shaped suspension bracket fixedly arranged at one end of the end beam body, and wheels are symmetrically and rotatably arranged on the inner sides of the two side plates of the U-shaped suspension bracket corresponding to the trolley track.

[0010] Furthermore, the vertical beams and the horizontal braces are both made of I-beams.

[0011] Furthermore, the U-shaped suspension bracket is symmetrically fixed with two groups of baffles along both sides of the length direction of the trolley track, and each group of baffles is located on both sides of the trolley track.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model discloses a trolley end beam connected by an N-type flexible connecting beam, which can share the bending moment through the vertical beam and the cross brace of the N-type structure, so that the wheels will not leave the track within a certain range and the normal operation of the trolley can be maintained; and through the support and buffering of the N-type flexible connecting beam, the shaking amplitude of the main beam can be reduced, the shaking frequency can be reduced, and the trolley suspended between the main beams can be made more stable; at the same time, the N-type flexible connecting beam connects the two main beam end beams, so that the two main beam end beams act on each other, which indirectly reduces the force on the corresponding fixing bolts, which is beneficial to reduce the consumption of related components and extend their service life.

[0014] It should be understood that the contents described in the summary of the utility model are not intended to limit the key or important features of the embodiments of the utility model, nor are they intended to limit the scope of the utility model.

[0015] Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0017] Figure 1 A schematic diagram of the structure of a trolley end beam connected by an n-type flexible connecting beam provided in an embodiment of the utility model;

[0018] Figure 2 A schematic diagram of a top view of a suspended double-beam crane trolley provided in an embodiment of the utility model;

[0019] Figure 3 This is a structural diagram that is enlarged for the end beam of the main beam;

[0020] Figure 4 It is a right view structural diagram of the trolley end beam;

[0021] Figure 5 It is a simplified schematic diagram of the principle of n-type flexible connecting beam;

[0022] Numbers in the figure:

[0023] 1. Main beam; 2. Cart track;

[0024] 3. Main beam end beam; 31. End beam body; 32. Suspension wheel set; 33. Reinforcement bracket;

[0025] 321, U-shaped suspension bracket; 322, wheel; 323, baffle;

[0026] 4. Connecting beam; 41. Vertical beam; 42. Horizontal brace. DETAILED DESCRIPTION

[0027] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings.

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] Please refer to Figures 1 to 4 An embodiment of the utility model provides a trolley end beam connected by an n-type flexible connecting beam, which is symmetrically arranged at both ends of two parallel main beams 1, and is used to realize the connection between the two main beams 1 and the trolley track 2; it is characterized in that it includes two main beam end beams 3 and an n-type flexible connecting beam 4.

[0030] Two main beam end beams 3 are respectively arranged at one end of two main beams 1 on a trolley track 2; the main beam end beam 3 includes an end beam body 31 fixedly arranged on the top surface of the corresponding main beam 1, and the end beam body 31 is sleeved on the circumferential outer side of the corresponding trolley track 2; the end beam body 31 is symmetrically arranged on both sides along the length direction of the trolley track 2 with a suspension wheel group 32, which is used to realize the movement of the main beam 1 on the trolley track 2.

[0031] The end beam body 31 as a whole does not contact the trolley track 2, so as to prevent interference and affect the operation of the trolley.

[0032] In a preferred embodiment, the end beam body 31 is U-shaped, and the upper ends of the two side plates of the U-shaped end beam body 31 are bent inwards to prevent it from falling off.

[0033] The bent portion of the end beam 31 is higher than the upper surface of the trolley track 2 .

[0034] In a preferred embodiment, reinforcement brackets 33 are fixedly provided on the outer sides of the two side plates of the end beam body 31 to reinforce the connection between the end beam body 31 and the main beam 1 .

[0035] In a preferred embodiment, the suspension wheel set 32 ​​includes a U-shaped suspension bracket 321 fixedly arranged at one end of the end beam body 31, and wheels 322 are symmetrically and rotatably arranged on the inner sides of the two side plates of the U-shaped suspension bracket 321 corresponding to the trolley track 2.

[0036] The wheel 322 in each suspension wheel group 32 may be a single wheel or a plurality of wheels connected in transmission, preferably two wheels connected in transmission.

[0037] Among them, one wheel 322 in the main beam end beam 3 is connected to the motor as the driving wheel, preferably the wheel 322 away from the trolley, and the other is the driven wheel. The driving wheel drives the end beam body 31 to move, and then drives the driven wheel connected to the end beam body 31 to operate.

[0038] Further optimized, the U-shaped suspension bracket 321 is symmetrically fixed with two groups of baffles 323 on both sides along the length direction of the trolley track 2, and each group of baffles 323 is located on both sides of the trolley track 2.

[0039] The connecting beam 4 is arranged between two end beam bodies 31 on a trolley track 2, and includes a vertical beam 41 fixedly arranged on the top surface of the end beam body 31, and a horizontal brace 42 parallel to the trolley track 2 is fixedly arranged between the two vertical beams 41.

[0040] The vertical beam 41 is preferably fixed in the middle of the corresponding end beam body 31 .

[0041] In a preferred embodiment, the vertical beam 41 and the horizontal brace 42 are both made of I-beams.

[0042] Working principle of the utility model: The utility model is applicable to suspended double-beam cranes. Traditional suspended double-beam cranes include two parallel main beams. A trolley with a lifting mechanism is suspended between the main beams. The trolley is not shown in the figure. The trolley is located below the two main beams and moves along the length of the main beams. The two main beams and the trolley end beams on both sides constitute a trolley. The trolley moves along two I-shaped trolley tracks perpendicular to the main beams. Traditional trolley end beams are split, that is, there is a main beam end beam on one end of the same side of the two main beams. There is no connection between the two main beam end beams. There is a suspension wheel set at each end of each main beam end beam. Please refer to Figure 5 Schematic diagram, line segment AB and line segment CD represent the two main beam end beams on the same side, and A, B, C, and D represent a suspended wheel group respectively.

[0043] When the trolley suspended between the two main beams and moving along the length direction of the main beams is loaded, it will exert tension on the main beams, and the tension on the inner side of each main beam is greater than the tension on the outer side. When the trolley load exceeds a certain range or the trolley is running, the large tension will cause the main beam to tilt, and then drive the main beam end beams AB and CD connected to it to tilt. Because the main beam end beams AB and CD are connected to the trolley track by the wheels of the suspension wheel group, the tilt of the main beam end beam will cause the wheels of the suspension wheel groups A and D on the outer side of the main beam end beam to not touch the ground, affecting the operation of the trolley. Therefore, a cross brace with certain flexibility and resilience is needed to support the two main beam end beams to keep them horizontal; however, changes in the main beam end beams AB and CD will affect the force on the trolley suspension bracket under the main beam, so the flexibility and resilience cannot be too high, and a certain buffer is needed to control the amplitude and frequency of changes, so an n-type structure is considered; the deflection is transmitted and alleviated step by step, and finally the bending moment M1 is shared by the n-type structure. Since the end beam body is more rigid and the vertical beam is shorter, the rotation angle θ of point E can be considered to be the rotation angle θ of AB, and CD is symmetrical with it, and then the deflection range of the main beam end beam is determined according to the performance parameters of the cross brace, and the installation error of the main beam is obtained.

[0044] Under the action of the n-type flexible connecting beam, the wheels of the suspended wheel group can be kept from leaving the track within a certain range, thereby maintaining the normal operation of the trolley; and through the support and buffering of the n-type flexible connecting beam, the amplitude and frequency of the main beam change can be reduced, thereby making the trolley more stable; at the same time, the n-type flexible connecting beam connects the two main beam end beams, allowing the two main beam end beams to interact with each other, so that during the operation of the trolley, there is not only the drive of the active wheel, but also the force between the main beam end beams, which reduces the force on the fixing bolts, thereby reducing the consumption of related components and extending their service life.

[0045] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] In the description of this specification, the description of the terms "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A trolley end beam connected by an n-type flexible connecting beam, symmetrically arranged at both ends of two parallel main beams (1), used to achieve the connection between the two main beams (1) and the trolley track (2); characterized in that: It comprises two main beam end beams (3) and an n-shaped flexible connecting beam (4); wherein, The two main beam end beams (3) are respectively arranged at one end of the two main beams (1) on one of the trolley tracks (2); the main beam end beams (3) include end beam bodies (31) fixedly arranged on the top surface of the corresponding main beam (1), and the end beam bodies (31) are sleeved on the circumferential outer side of the corresponding trolley tracks (2); the end beam bodies (31) are symmetrically arranged on both sides along the length direction of the trolley tracks (2) with suspension wheel groups (32) for realizing the movement of the main beams (1) on the trolley tracks (2); The connecting beam (4) is arranged between the two end beam bodies (31) on one of the trolley tracks (2), and comprises a vertical beam (41) fixedly arranged on the top surface of the end beam body (31), and a horizontal brace (42) parallel to the trolley track (2) is fixedly arranged between the two vertical beams (41).

2. The trolley end beam connected by the n-type flexible connecting beam according to claim 1, characterized in that: The end beam body (31) is U-shaped, and the upper ends of the two side plates of the U-shaped end beam body (31) are bent inwards to prevent it from falling off.

3. The trolley end beam connected by the n-type flexible connecting beam according to claim 2, characterized in that: Reinforcement brackets (33) are fixedly provided on the outer sides of the two side plates of the end beam body (31) for reinforcing the connection between the end beam body (31) and the main beam (1).

4. The vehicle end beam connected by the n-type flexible connecting beam according to claim 1, characterized in that: The suspension wheel set (32) comprises a U-shaped suspension bracket (321) fixedly arranged at one end of the end beam body (31), and wheels (322) are symmetrically and rotatably arranged on the inner sides of two side plates of the U-shaped suspension bracket (321) corresponding to the trolley track (2).

5. The vehicle end beam connected by the n-type flexible connecting beam according to claim 1, characterized in that: The vertical beam (41) and the horizontal brace (42) are both made of I-beam.

6. The vehicle end beam connected by the n-type flexible connecting beam according to claim 4, characterized in that: The U-shaped suspension bracket (321) is symmetrically fixed with two groups of baffles (323) along both sides of the length direction of the trolley track (2), and each group of baffles (323) is located on both sides of the trolley track (2).

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