Beam arm structure and beam arm module for car dumper and car dumper

Abstract

The utility model belongs to engineering machinery, and particularly relates to a beam arm structure for a car dumper, a beam arm module and the car dumper. The beam arm structure comprises a cross arm beam and hinge mechanisms, the cross arm beam can stretch out and draw back to change the length, and the hinge mechanisms are arranged at the two ends of the cross arm beam in the length direction and used for connecting the cross arm beam and a car pressing beam in the car dumper. Wherein the hinging mechanism comprises a hinging seat and a hinging shaft, and the hinging seat is connected to one end of the cross arm beam in the length direction through the hinging shaft, so that the cross arm beam has a floating space in the direction perpendicular to the rotating axis of the vehicle pressing beam in the rotating process of the vehicle pressing beam. The beam arm structure can be flexibly connected with the vehicle pressing beams, the beam arm module with the beam arm structure can adapt to the asynchronous operation situation of the vehicle pressing beams on the two sides, and the application scenes are richer.

Description

Technical Field

[0001] The utility model belongs to engineering machinery for transportation operations, in particular to a beam arm structure for a car tipping machine, a beam arm module and a car tipping machine. Background Art

[0002] In the field of railway freight, trains carry large amounts of cargo, and car dumpers are a common type of unloading equipment that flips a single carriage to quickly and efficiently unload cargo from the train.

[0003] The car hold-down beam and the purge device are important components of the car tipping machine. The car hold-down beam is mainly used to apply pressure to a single car section to ensure the stability of the car section during the tipping process. There are generally multiple car hold-down beams and they are spaced apart in the length direction of the car section.

[0004] In the current prior art, when one side of the car pressing beam moves, the other side of the car pressing beam must also move synchronously to maintain the stability of the beam arm structure, and the forced synchronous movement limits the independence of the movements of the car pressing beams on both sides. Utility Model Content

[0005] The utility model provides a beam arm structure, a beam arm module and a tipping machine for a car tipping machine, so as to solve the technical problem in the prior art that the existing beam arm is rigidly connected to the car pressing beam and is difficult to adapt to the application scenario of the asynchronous driving of the car pressing beam.

[0006] The first aspect of the utility model provides a beam arm structure for a car tipping machine, the beam arm structure includes a cross arm beam and an articulation mechanism, the articulation mechanism is arranged at both ends of the cross arm beam in the length direction and is used to connect the cross arm beam and the car pressing beam in the car tipping machine. The articulation mechanism includes an articulation seat and an articulation shaft, the articulation seat is connected to one end of the cross arm beam in the length direction through the articulation shaft, so that the cross arm beam has a floating space in the vertical direction of the rotation axis of the car pressing beam during the rotation of the car pressing beam.

[0007] In an optional solution of the utility model, the hinge seat includes a flange and a hinge plate; the hinge plate extends from the flange toward the cross arm beam and is connected to one end of the cross arm beam in the length direction through the hinge shaft. In this embodiment, the flange can ensure connection reliability.

[0008] In an optional solution of the utility model, the beam arm structure further includes a slewing drive device; the slewing drive device is connected to the car pressing beam, and the flange is connected to the slewing drive device. In this embodiment, the slewing drive device is used to ensure that the cross arm beam has a slewing degree of freedom.

[0009] In an optional solution of the utility model, the rotary drive device is a rotary oil cylinder. The use of the rotary oil cylinder is a hydraulic drive mode, which ensures the explosion-proof performance of the whole machine.

[0010] In an optional solution of the utility model, the cross arm beam includes an inner telescopic arm and an outer telescopic arm. The inner end of the inner telescopic arm in the length direction is arranged in the outer telescopic arm along the length direction of the outer telescopic arm, and the outer end of the inner telescopic arm in the length direction extends out of the outer telescopic arm, and the inner telescopic arm and the outer telescopic arm can slide relative to each other in the length direction of the outer telescopic arm. In this embodiment, the cross arm beam can adjust the length to adapt to the position adjustment change.

[0011] In an optional solution of the utility model, one end of the outer telescopic arm away from the inner telescopic arm is set as a closed structure and a sealed end; the hinge mechanisms at both ends are respectively connected to the outer end of the inner telescopic arm in the length direction and the sealed end of the outer telescopic arm. In this embodiment, the sealed end of the outer telescopic arm is a closed structure, and the other end is sealed by the inner telescopic arm to prevent dust from entering and causing increased friction between the outer telescopic arm and the inner telescopic arm.

[0012] The second aspect of the utility model provides a beam-arm module for a car tipping machine, which includes a car-pressing beam and the above-mentioned beam-arm structure; the car-pressing beam is arranged at both ends of the cross arm beam in the beam-arm structure in the length direction, and the cross arm beam is hinged to the car-pressing beam through a hinge mechanism.

[0013] In this embodiment, when the press beams on both sides are in asynchronous operation, the beam arm structure can adaptively adjust the length and angle relative to the press beam to ensure that the pressure applied by the press beam is evenly distributed on the car body. In this way, the beam arm module with the beam arm structure can adapt to the asynchronous operation of the press beams on both sides, and has more application scenarios.

[0014] In an optional solution of the utility model, the press beam includes a beam body and a press seat; the beam body includes a press beam body, and the press seats are arranged at both ends of the length direction of the press beam body and are hinged to the press beam body. In this embodiment, the press seat is hinged to the beam body to ensure that the press beam body has a certain degree of swing freedom, so that the press beam body can swing and adjust to adapt to the orientation change of the beam arm structure.

[0015] In an optional solution of the utility model, the crimping seat includes a crimping bottom plate, a connecting plate and at least one limiting plate; the connecting plate and the limiting plate are arranged at intervals along the length direction of the pressure beam body, and the connecting plate is located on the outside of the limiting plate in the length direction of the pressure beam body; the connecting plate is hinged to the pressure beam body, and the limiting plate is provided with an avoidance notch, and part of the pressure beam body is embedded in the avoidance notch to limit the swing range of the beam body. In this embodiment, the swing range of the beam body is appropriately limited by the avoidance notch, ensuring that the pressure applied by the car pressure beam on the car body is appropriate.

[0016] The third aspect of the utility model provides a car tipping machine, which includes the above-mentioned beam arm module.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The beam arm module of the utility model has a beam arm structure and a car pressing beam, wherein the beam arm structure includes a cross arm beam and an articulated mechanism, and is articulated with the car pressing beam through the articulated mechanism. In this way, the beam arm structure and the car pressing beam are flexibly connected in an articulated form and can change the length, thereby having a certain floating space. At this time, even if the car pressing beams on both sides are in asynchronous operation, the beam arm structure can also adaptively adjust the length and the angle relative to the car pressing beam to ensure that the pressure applied by the car pressing beam is evenly distributed on the car body.

[0019] In this way, the beam arm module with the beam arm structure can adapt to the asynchronous operation of the car pressing beams on both sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A partial schematic diagram of a car tipping machine provided according to one embodiment of the present application;

[0022] Figure 2 for Figure 1 Schematic diagram of the center beam arm structure;

[0023] Figure 3 for Figure 2 A partial cross-sectional view of the center beam arm structure;

[0024] Figure 4 for Figure 1 A partial enlarged view of the S in the middle;

[0025] Figure 5 This is a schematic structural diagram of a hinge mechanism and its connecting parts in an optional embodiment of the present application;

[0026] Figure 6 A schematic structural diagram of an articulated mechanism and its connecting parts in another optional embodiment of the present application;

[0027] Figure 7 This is a schematic diagram of a crimping seat provided according to one of the embodiments of the present application.

[0028] Reference numerals

[0029] 1000, beam arm module;

[0030] 100. Beam arm structure;

[0031] 110, cross arm beam; 111, inner telescopic arm; 112, outer telescopic arm;

[0032] 120, hinge mechanism; 121, hinge seat; 1211, flange; 1212, hinge plate; 122, hinge shaft;

[0033] 130. Rotary drive device;

[0034] 200, press beam; 210, beam body; 211, press beam body; 212, transfer beam body; 220, press seat; 221, press bottom plate; 222, connecting plate; 223, limit plate;

[0035] 300, carriage;

[0036] C. Avoid gaps. DETAILED DESCRIPTION

[0037] In order to make the above and other features and advantages of the utility model more clear, the utility model is further described below in conjunction with the accompanying drawings. It should be understood that the specific embodiments given herein are for the purpose of explaining to those skilled in the art and are only exemplary and not restrictive.

[0038] It should be noted that, at present, a beam arm structure for installing a purge device is provided between two adjacent press beams. Since the existing beam arm structure has a fixed length and both ends are rigidly connected to the press beams on both sides, the press beams on both sides must move synchronously, which results in an overly single application scenario. In some applications, for example, a purge device needs to be installed here, and synchronous movement cannot achieve such flexibility. The beam arm structure 100 provided in the embodiment of the utility model is intended to solve this technical problem.

[0039] Figure 1 This is a partial schematic diagram of a dumper provided according to one embodiment of the present application. Figure 1 The beam arm module 1000 includes a beam arm structure 100 and a press beam 200 .

[0040] Figure 2 for Figure 1 Schematic diagram of the center beam arm structure 100. Figure 3 for Figure 2 A partial cross-sectional view of the center beam arm structure 100. Figure 2 and Figure 3 The beam-arm structure 100 includes a cross-arm beam 110 and a hinge mechanism 120 .

[0041] The articulated mechanism 120 is disposed at both ends of the cross arm beam 110 in the length direction and is used to connect the cross arm beam 110 and the car pressing beam 200 in the car tipping machine.

[0042] The articulation mechanism 120 includes an articulation seat 121 and an articulation shaft 122. The articulation seat 121 is connected to one end of the cross beam 110 in the length direction through the articulation shaft 122, so that the cross beam 110 has floating space in the vertical direction of the rotation axis of the press beam 200 during the rotation of the press beam 200.

[0043] In a preferred embodiment, the cross arm 110 includes an inner telescopic arm 111 and an outer telescopic arm 112. The inner end of the inner telescopic arm 111 in the longitudinal direction is arranged in the outer telescopic arm 112 along the longitudinal direction of the outer telescopic arm 112, and the outer end of the inner telescopic arm 111 in the longitudinal direction extends out of the outer telescopic arm 112, and the inner telescopic arm 111 and the outer telescopic arm 112 can slide relative to each other in the longitudinal direction of the outer telescopic arm 112.

[0044] Please combine Figure 1 In other words, the press beam 200 is arranged at both ends of the cross arm beam 110 in the beam arm structure 100 in the length direction, and the cross arm beam 110 is hinged to the press beam 200 through the hinge mechanism 120.

[0045] In this embodiment, both ends of the cross arm beam 110 in the beam arm structure 100 in the length direction are hinged to the car pressing beam 200 through the hinge mechanism 120. In addition, the cross arm beam 110 is composed of an inner telescopic arm 111 and an outer telescopic arm 112, which are nested and can slide against each other along the length direction of the cross arm beam 110, that is, the inner telescopic arm 111 and the outer telescopic arm 112 can move relative to each other in the length direction of the cross arm beam 110, so that the cross arm beam 110 can change its length.

[0046] From the above, it can be seen that, firstly, the beam arm structure 100 and the car pressing beam 200 are hinged, that is, the two are flexibly connected, and secondly, the beam arm structure 100 can change its length.

[0047] In a specific application, in order to ensure the pressure applied to the carriage, each individual car pressing beam 200 is driven and provided with pressure by a corresponding oil cylinder, that is, the car pressing beams 200 on both sides can move independently.

[0048] It should be understood that when the press beams 200 on both sides are in asynchronous operation, the beam arm structure 100 can adaptively adjust the length and the angle relative to the press beam 200 to ensure that the pressure applied by the press beam 200 is evenly distributed on the carriage. In this way, the beam arm module 1000 with the beam arm structure 100 can adapt to the asynchronous operation of the press beams 200 on both sides, and has more application scenarios.

[0049] In other words, the cross arm beam 110 has a certain floating space to adapt to the asynchronous operation of the two side press beams 200. It should be noted that in the illustrated embodiment, the length direction of the cross arm beam 110 is the horizontal direction, the extension direction of the rotation axis of the press beam 200 is the horizontal direction, and the vertical direction of the rotation axis is the longitudinal direction, that is, the up and down direction.

[0050] It should be noted that the outer telescopic arm 112 is a hollow structure with a hollow chamber. The relationship between "inside" and "outside" here is mainly judged based on the hollow chamber of the outer telescopic arm 112. Specifically, the inside of the hollow chamber of the outer telescopic arm 112 is "inside", and the outside of the hollow chamber of the outer telescopic arm 112 is "outside".

[0051] In a further optional embodiment, the outer telescopic arm 112 is configured as a closed structure and a sealed end at one end in the length direction away from the inner telescopic arm 111. The hinge mechanisms 120 at both ends are respectively connected to the outer end in the length direction of the inner telescopic arm 111 and the sealed end of the outer telescopic arm 112.

[0052] In this embodiment, the two ends of the outer telescopic arm 112 in the length direction are a closed end and an open end respectively, and the open end of the outer telescopic arm 112 is provided with an opening to allow the inner end of the inner telescopic arm 111 in the length direction to pass through.

[0053] The sealed end of the outer telescopic arm 112 is a closed structure to prevent dust from entering the hollow chamber of the outer telescopic arm 112. It can be understood that since the outer telescopic arm 112 and the inner telescopic arm 111 are nested inside and outside and the two are slidably connected, if dust enters, the friction between the two is increased. Therefore, the end of the outer telescopic arm 112 away from the inner telescopic arm 111 is set as a closed structure to prevent dust from entering to reduce friction and ensure the service life of the two.

[0054] It can be understood that the open end of the outer telescopic arm 112 is sealed by the inner telescopic arm 111 .

[0055] It should be understood that the above-mentioned hinge mechanism 120 is arranged at both ends of the cross arm beam 110 in the length direction, which means that one hinge mechanism 120 is fixedly installed at the outer end of the inner telescopic arm 111 in the length direction, and another hinge mechanism 120 is fixedly installed at the closed end of the outer telescopic arm 112. That is, the two ends of the cross arm beam 110 in the length direction refer to the closed end of the outer telescopic arm 112 and the inner end of the inner telescopic arm 111 in the length direction, respectively.

[0056] In a specific application, the inner telescopic arm 111 and the outer telescopic arm 112 are clearance-matched, so that the two can slide against each other. In the illustrated embodiment, the inner telescopic arm 111 and the outer telescopic arm 112 are both rectangular hollow tubes, that is, the opening size of the hollow structure of the outer telescopic arm 112 is larger than the cross-sectional size of the inner telescopic arm 111, so as to ensure the clearance-matching of the two.

[0057] Of course, the inner telescopic arm 111 and the outer telescopic arm 112 are not limited to rectangular hollow tubes, and may be, for example, circular hollow tubes, elliptical hollow tubes, etc.

[0058] In this embodiment, the articulated mechanism 120 is composed of an articulated seat 121 and an articulated shaft 122 , wherein the articulated seat 121 is articulated with the cross arm beam 110 via the articulated shaft 122 , thereby ensuring that the articulated seat 121 has rotational freedom.

[0059] It should be noted that the hinge shaft 122 can be, for example, a single shaft, a cross shaft, etc., and a suitable hinge shaft 122 can be selected according to the rotational freedom required by the cross arm beam 110.

[0060] In a further optional embodiment, the beam arm structure 100 further includes a rotary drive device 130 , the rotary drive device 130 is connected to the press beam 200 , and the flange 1211 is connected to the rotary drive device 130 .

[0061] In this embodiment, the beam arm structure 100 further includes a rotary drive device 130, which can be fixedly mounted on the press beam 200. That is, both ends of the cross arm beam 110 in the length direction are connected to the rotary drive device 130 through the hinge mechanism 120, and then connected to the press beam 200 through the rotary drive device 130.

[0062] It should be understood that when the rotation drive devices 130 are provided at both ends of the cross arm beam 110 in the longitudinal direction, the rotation drive devices 130 on both sides can drive the cross arm beam 110 to rotate. In a specific application, the cross arm beam 110 can be used to install a purge device, thus ensuring that the purge device has more freedom of movement.

[0063] The slewing drive device 130 here can be, for example, a motor, a slewing oil cylinder, etc. Preferably, the slewing drive device 130 is a slewing oil cylinder. As can be seen from the foregoing, the car pressing beam 200 is driven by an oil cylinder, so the slewing drive device 130 and the oil cylinder driving the car pressing beam 200 share a hydraulic system, which reduces costs and ensures that the entire tipping machine has better explosion-proof performance.

[0064] Figure 4 for Figure 1 A partial enlarged view of the S in the figure. Figure 4 In a further optional embodiment, the press beam 200 includes a beam body 210 and a press seat 220. The beam body 210 includes a press beam body 211, and the press seat 220 is arranged at both ends of the press beam body 211 in the length direction and is hinged to the press beam body 211.

[0065] In this embodiment, the car pressing beam 200 is composed of a beam body 210 and a crimping seat 220, wherein the beam body 210 includes a pressing beam body 211, and the two ends of the pressing beam body 211 in the length direction cooperate with the crimping seat 220 to straddle the carriage 300. In this way, the beam body 210 can make the crimping seat 220 press down the carriage 300 under the drive of the oil cylinder.

[0066] In addition, as can be seen from the foregoing, the beam arm structure 100 can be telescopically adjusted in length and change its relative angle with the press beam 200. It should be understood that in the process of changing the length and adaptively adjusting the orientation of the beam arm structure 100, the beam body 210 will inevitably have slight swings. In the present embodiment, the crimping seat 220 is hinged to the beam body 210 to ensure that the press beam body 210 has a certain degree of freedom of swing.

[0067] In the illustrated embodiment, the beam body 210 further includes a transition beam body 212 extending from the compression beam body 211. The transition beam body 212 is mainly used to connect the driving cylinder. It can be seen that the beam body 210 is a special-shaped structural beam.

[0068] In an alternative embodiment, Figure 5 As shown, the rotary drive device 130 is fixedly integrated on the hinge shaft 122, the hinge seat 121 is connected to the pressure beam body 211, the hinge shaft 122 is rotatably connected to the hinge seat 121, and the rotary drive device 130 is rotatably connected to the end of the corresponding cross arm beam 110.

[0069] In this embodiment, the cross arm beam 110 can rotate around the slewing drive device 130. When the slewing drive device 130 is activated, since the articulated seat 121 itself does not have the rotational freedom in the length direction of the cross arm beam 110, only the rotation of the cross arm beam 110 is realized. And since the slewing drive device 130 is fixedly integrated on the articulated shaft 122, and the articulated shaft 122 is rotatably connected to the articulated seat 121, this connection method ensures the stability and reliability of power transmission. It is allowed to rotate relative to the cross arm beam 110, thereby further increasing flexibility and adaptability.

[0070] In another alternative embodiment, if Figure 6 As shown, the rotary drive device 130 is fixed on the pressure beam body 211, the hinge seat 121 is connected to the pressure beam body 211, and the hinge shaft 122 is located at the end of the cross arm beam 110 and can be rotatably connected to the hinge seat 121. At the same time, the rotary drive device 130 is connected to the end of the corresponding cross arm beam 110 to drive the entire hinge mechanism 120 and the cross arm beam 110 to rotate synchronously. Since the rotary drive device 130 is directly fixed on the pressure beam body 211, the structural stability of the entire system is enhanced. It can reduce unnecessary swings or, thereby improving the stability of the equipment.

[0071] According to this embodiment, the hinge seat 121 includes a flange 1211 and a hinge plate 1212. The hinge plate 1212 extends from the flange 1211 toward the cross arm beam 110 and is connected to one end of the cross arm beam 110 in the length direction through the hinge shaft 122.

[0072] In this embodiment, the hinge seat 121 is composed of a flange 1211 and a hinge plate 1212 , wherein the hinge plate 1212 extends from the flange 1211 and is used to cooperate with the hinge shaft 122 to achieve hinge connection with the cross arm beam 110 .

[0073] In a specific application, the flange 1211 can be directly fixed on the press beam 200 to realize the hinged connection between the cross arm beam 110 and the press beam 200. It should be noted that the flange 1211 is generally a circular disk and is provided with screw holes arranged symmetrically relative to the center of the circle. The flange 1211 is connected to the press beam 200 through screw connections, and the connection strength between the two is ensured.

[0074] In the illustrated embodiment, an ear seat is formed at the end of the cross arm beam 110 in the longitudinal direction. The ear seat is formed by ear plates arranged at intervals. The hinge plate 1212 extends between the ear plates arranged at intervals. The hinge shaft 122 can pass through the hinge plate 1212 and the ear seat to achieve hinge connection.

[0075] It should be understood that the ear seats are formed at the outer ends of the inner telescopic arm 111 in the length direction and at the sealed ends of the outer telescopic arm 112 .

[0076] like Figure 7 , which is a schematic diagram of a crimping seat 220 provided according to one embodiment of the present application. Figure 5 In a further optional embodiment, the crimping seat 220 includes a crimping bottom plate 221, a connecting plate 222 and at least one limiting plate 223. The connecting plate 222 and the limiting plate 223 are both arranged at intervals along the length direction of the compression beam body 211, and the connecting plate 222 is located outside the limiting plate 223 in the length direction of the compression beam body 211. The connecting plate 222 is hinged to the compression beam body 211, and the limiting plate 223 is provided with an avoidance notch C, and a part of the compression beam body 211 is embedded in the avoidance notch C to limit the swing range of the beam body 210.

[0077] In this embodiment, the crimping seat 220 is composed of a crimping bottom plate 221, a connecting plate 222 and at least one limiting plate 223. The connecting plate 222 and the limiting plate 223 are arranged on the crimping bottom plate 221 at intervals, and the connecting plate 222 is located outside relative to the limiting plate 223 in the length direction of the compression beam body 211.

[0078] The connecting plate 222 is hinged to the compression beam body 211, thereby realizing the hinge connection between the compression beam body 211 and the compression seat 220. In addition, the limiting plate 223 is provided with an avoidance notch C, which can accommodate part of the compression beam body 211, and the swing range of the beam body 210 is limited by the avoidance notch C.

[0079] It should be understood that if the swing angle of the beam body 210 relative to the crimping seat 220 is too large, it will affect the pressure applied to the car body 300. By limiting the swing range of the beam body 210 to an appropriate level by avoiding the gap C, it is ensured that the pressure applied by the pressing beam 200 on the car body 300 is appropriate.

[0080] In the illustrated embodiment, the number of the limiting plates 223 is two, but it is not limited thereto and the number can be adjusted according to the requirements. In addition, the avoidance notch C is V-shaped, and the lower end side of the pressure beam body 211 is pointed, and the tip can be embedded in the V-shaped notch.

[0081] In a specific application, the size of the V-shaped notch is slightly larger than the tip of the pressure beam body 211, ensuring that the pressure beam body 211 has a swing angle range of ±5° relative to the vertical center line of the V-shaped notch.

[0082] In summary, the beam arm module 1000 comprises a beam arm structure 100 and a press beam 200 located on both sides of the beam arm structure 100 . The beam arm structure 100 comprises a cross arm beam 110 and an articulated mechanism 120 , and is articulated with the press beam 200 through the articulated mechanism 120 .

[0083] In this way, when the car-pressing beams 200 on both sides are driven asynchronously, the beam arm structure 100 can adaptively adjust the length and orientation. Furthermore, the beam body 210 in the car-pressing beam 200 can also adaptively swing to adapt to the changes of the beam arm structure 100 to ensure that the pressure applied to the car body 300 is uniform.

[0084] Another aspect of the present application is to provide a tipping machine, which includes the above-mentioned beam arm module 1000. Obviously, since the tipping machine has the above-mentioned beam arm module 1000, it can adapt to the situation where the pressure beams 200 on both sides are driven asynchronously, and has more abundant application scenarios. Of course, the tipping machine also has other advantages brought by the above-mentioned beam arm module 1000, which will not be repeated here one by one.

[0085] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A beam arm structure for a car tipper, characterized in that: The beam arm structure (100) comprises: A cross arm beam (110); and An articulated mechanism (120) is arranged at both ends of the cross arm beam (110) in the length direction and is used to connect the cross arm beam (110) and a car pressing beam (200) in the car tipping machine; The articulated mechanism (120) comprises an articulated seat (121) and an articulated shaft (122); the articulated seat (121) is connected to one end of the cross arm beam (110) in the length direction via the articulated shaft (122), so that the cross arm beam (110) has floating space in the vertical direction of the rotation axis of the press beam (200) during the rotation of the press beam (200).

2. The beam arm structure according to claim 1, characterized in that: The beam arm structure (100) further comprises a rotation driving device (130); Wherein, the hinge shaft (122) is connected to the rotary drive device (130), and the hinge seat (121) is connected to the pressure beam body (211); or The hinge shaft (122) is connected to the end of the cross arm beam (110), and the rotary drive device (130) is connected to the pressure beam body (211).

3. The beam arm structure according to claim 2, characterized in that: When the rotary drive device (130) is connected to the pressure beam body (211), the hinge seat (121) comprises a flange (1211) and a hinge plate (1212); The hinge plate (1212) extends from the flange (1211) toward the cross arm beam (110), and is connected to one end of the cross arm beam (110) in the length direction through the hinge shaft (122).

4. The beam arm structure according to claim 3, characterized in that: The rotary drive device (130) is connected to the car pressing beam (200), and the flange (1211) is connected to the rotary drive device (130).

5. The beam arm structure according to claim 3, characterized in that: The rotary drive device (130) is a rotary oil cylinder.

6. The beam arm structure according to claim 5, characterized in that: The cross arm beam (110) comprises an inner telescopic arm (111) and an outer telescopic arm (112); One end of the outer telescopic arm (112) away from the inner telescopic arm (111) is configured as a closed structure and is a sealed end; The hinge mechanisms (120) at both ends are respectively connected to the outer ends of the inner telescopic arm (111) in the length direction and the sealing ends of the outer telescopic arm (112).

7. A beam arm module for a car tipper, characterized in that: The beam arm module (1000) comprises a press beam (200) and a beam arm structure (100) according to any one of claims 1 to 6; The press beam (200) is arranged at both ends of the cross arm beam (110) in the beam arm structure (100) in the length direction, and the cross arm beam (110) is hinged to the press beam (200) via the hinge mechanism (120).

8. The beam arm module according to claim 7, characterized in that: The press beam (200) comprises a beam body (210) and a press seat (220); The beam body (210) comprises a compression beam body (211), and the compression seats (220) are arranged at both ends of the compression beam body (211) in the length direction and are hinged to the compression beam body (211).

9. The beam arm module according to claim 8, characterized in that: The crimping seat (220) comprises a crimping base plate (221), a connecting plate (222) and at least one limiting plate (223); The connecting plate (222) and the limiting plate (223) are both arranged at intervals along the length direction of the pressure beam body (211), and the connecting plate (222) is located outside the limiting plate (223) in the length direction of the pressure beam body (211); The connecting plate (222) is hinged to the pressure beam body (211), the limiting plate (223) is provided with an avoidance notch (C), and a portion of the pressure beam body (211) is embedded in the avoidance notch (C) to limit the swing range of the beam body (210).

10. A dumper, characterized in that: The tipping machine comprises a beam arm module (1000) according to any one of claims 7 to 9.

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