A railway crane, bogie and brake beam thereof

Abstract

The present invention discloses a railway crane, a bogie and a brake beam thereof. The brake beam includes a beam frame, a fulcrum seat, two brake shoe holders and two brake shoes; wherein, the beam frame has a hollow beam body with a constant cross-section configured along the length direction; the fulcrum seat is fixed on the side beam body relative to the middle of the beam frame, and the fulcrum seat has an interface for matching with a brake lever; the two brake shoe holders are respectively fixed at both ends of the beam frame, and the outer ends of the brake shoe holders have brake shoe matching parts; the two brake shoes are respectively arranged corresponding to the two brake shoe holders, one side body of the brake shoe has a brake shoe mounting surface, and the other side body has a mounting part adapted to the brake shoe matching part. This solution reduces the space occupation through structural optimization to improve the adaptability of the brake beam.

Description

Technical Field

[0001] The present invention relates to the technical field of rail vehicles, and particularly relates to a railway crane, a bogie and a brake beam thereof. Background Art

[0002] The brake beam is an important part of the basic braking device of a railway vehicle bogie and is used to transmit the braking force generated by the brake cylinder. During braking operation, the braking force is applied to the brake shoe through the brake shoe carriers arranged at both ends of the brake beam, and the brake shoe generates pressure on the wheel tread to achieve braking of the vehicle.

[0003] In the prior art, a typical combined brake beam is widely used in general railway freight cars and mainly consists of a brake beam frame, brake shoe carriers, slider wear sleeves, struts, clips and safety chains, etc. The brake beam frame of this solution is in an arch shape with a convex middle part. For a bogie that requires self-propelling function, a gear for transmitting power, that is, a driving axle, needs to be arranged on one axle of the bogie. The gear on it occupies the space of the bogie. Therefore, there will be an interference in the spatial layout between the convex middle part of the existing arch-shaped brake beam frame and the gear on the driving axle, and it cannot be applied to the corresponding bogie braking system.

[0004] In view of this, it is urgent to find a new way to optimize the structure of the brake beam for the bogie to solve the above-mentioned defects existing in the prior art. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides a railway crane, a bogie and a brake beam thereof, which reduce the space occupation through structural optimization to improve the adaptability of the brake beam.

[0006] The brake beam provided by the present invention includes a beam frame, a fulcrum seat, two brake shoe carrier seats and two brake shoe carriers; wherein, the beam frame has a hollow beam body with a constant cross-section arranged along the length direction; the fulcrum seat is fixed on the side beam body relative to the middle part of the beam frame, and the fulcrum seat has an interface for adapting to the brake lever; the two brake shoe carrier seats are respectively fixed at both ends of the beam frame, and the outer end of the brake shoe carrier seat has a brake shoe mating part; the two brake shoe carriers are respectively arranged corresponding to the two brake shoe carrier seats, one side body of the brake shoe carrier has a brake shoe mounting surface, and the other side body has a mounting part adapted to the brake shoe mating part.

[0007] Preferably, the outer contour of the cross-section of the beam body is rectangular.

[0008] Preferably, the beam frame is formed by butt-welding two channel steels.

[0009] Preferably, the inner end of the brake shoe carrier seat has an insertion part, and the insertion part is inserted and fixed in the hollow beam body.

[0010] Preferably, the brake shoe fitting portion includes a vertical plate and a clamping block fixedly arranged on one side plate surface of the vertical plate. The installation portion of the brake shoe carrier is a clamping groove formed on the other side body thereof, and the clamping groove is adapted to the clamping block. Moreover, an insertion through hole is formed on the plate surface of the vertical plate beside the clamping block, and a pin hole is formed on the body of the brake shoe carrier beside the clamping groove. The pin hole and the insertion through hole are concentrically arranged to fix the adapted brake shoe carrier seat and the brake shoe carrier through a fastening member.

[0011] Preferably, a rib plate extending horizontally is fixedly arranged on the other side plate surface of the vertical plate.

[0012] Preferably, it further includes a safety chain connected to the beam frame.

[0013] Preferably, it further includes: two slider wear sleeves, which are respectively sleeved on the sliders at the outer ends of the corresponding side brake shoe carriers.

[0014] The present invention also provides a bogie, including a braking system, and the braking system adopts the braking beam as described above.

[0015] The present invention also provides a railway crane, including the bogie as described above.

[0016] Compared with the prior art, the present invention provides a braking beam that can reduce space occupation. Specifically, the beam frame of the braking beam has a hollow beam body with a constant cross-section configured along the length direction, and provides a braking lever interface through a fulcrum seat fixed on the beam body. The fulcrum seat is fixed beside the middle of the beam frame, effectively reducing the space occupation in the middle region as a whole. At the same time, two brake shoe carrier seats are respectively fixed at both ends of the beam frame, and the outer ends of the brake shoe carrier seats have brake shoe fitting portions; two brake shoe carriers for installing brake shoes are respectively fixed to the brake shoe fitting portions of the corresponding side brake shoe carrier seats by using the installation portions to achieve the braking function. With such a setting, the problem that a traditional braking beam cannot be installed on the side of the driving wheel axle of the bogie is solved. This solution rationally utilizes the structural space position, can meet the requirement of adding a basic braking device on the basis of a cast steel three-piece bogie, and can reliably realize the braking function of the powered bogie. For example, but not limited to, it can be widely applicable to the functional requirements of vehicle types such as railway cranes, providing a safety technical guarantee for improving the operation safety of railway cranes and the improvement of operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the front view of the braking beam described in the specific implementation manner;

[0018] Figure 2 It is Figure 1 the top view of;

[0019] Figure 3 It is Figure 1 the side view of;

[0020] Figure 4 Is an axonometric schematic diagram of the brake beam described in the specific implementation manner;

[0021] Figure 5 Is an axonometric schematic diagram of the brake beam formed from another angle;

[0022] Figure 6 Is Figure 1 A structural schematic diagram of the brake shoe holder shown in

[0023] Figure 7 Is Figure 6 The A-A sectional view of

[0024] Figure 8 Is Figure 1 A structural schematic diagram of the brake shoe shown in

[0025] In the figure:

[0026] Beam frame 1, fulcrum seat 2, interface 21, brake shoe holder 3, brake shoe mating part 31, vertical plate 311, insertion through hole 3111, clamping block 312, rib plate 313, insertion part 32, brake shoe 4, brake shoe mounting surface 41, mounting part 42, card slot 421, pin hole 422, slider 43, slider wear sleeve 5, safety chain 6, fastener 7. Specific implementation manner

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Please refer to Figure 1 , Figure 2 And Figure 3 , wherein, Figure 1 Shows the front view of the brake beam described in this embodiment, Figure 2 Is Figure 1 The top view of Figure 3 Is Figure 1 The side view of

[0029] The brake beam provided by this solution for the bogie braking system includes a beam frame 1 and two fulcrum seats 2. Along the length direction of the beam frame, it is in an equal cross-section shape as a whole and does not occupy the middle space after assembly; the beam body of the beam frame 1 is in an equal cross-section hollow shape to obtain better load-bearing strength.

[0030] Among them, the two fulcrum seats 2 are respectively fixed on the beam bodies on both sides relative to the middle part of the beam frame 1, and each fulcrum seat 2 is provided with an interface 21 for adapting to the brake lever; correspondingly, the layout of the brake lever can reasonably utilize the spatial positions on both sides in the transverse direction and does not occupy the middle space either. Overall, it can effectively reduce the space occupation in the middle area and meet the functional requirements of installing a basic braking device on the basis of a three-piece cast steel bogie.

[0031] Here, the interface 21 for adapting to the brake lever can be set according to the brake lever (not shown in the figure), rather than being limited to the preferred exemplary structural form shown in the figure. As shown in the figure, the interface 21 of the fulcrum seat 2 is formed on two support plates, and the adaptation interface part of the brake lever is located between the two support plates, so as to form a hinged connection relationship with the brake lever through a round pin to meet the functional requirement of the brake lever driving the brake beam to displace. Please refer to Figure 4 and Figure 5 , the axonometric schematic diagrams of the beam frame formed from different angles in the two figures respectively.

[0032] Among them, the two brake shoe holders 3 are respectively fixed at both ends of the beam frame 1 for installing the brake shoe carriers 4. The outer end of each brake shoe holder 3 has a brake shoe mating portion 31. Please refer to Figure 6 and Figure 7 , among which, Figure 6 is Figure 1 the structural schematic diagram of the brake shoe holder shown in Figure 7 is Figure 6 the A-A sectional view of . As a preference, the brake shoe holder can be an integral forging or casting.

[0033] Among them, the two brake shoe carriers 4 are respectively arranged corresponding to the two brake shoe holders 3. One side body of each brake shoe carrier 4 has a brake shoe mounting surface 41, and the other side body has a mounting portion 42 adapted to the brake shoe mating portion (not shown in the figure), that is, the brake shoe carrier 4 is mounted on the brake shoe mounting surface 41 of the brake shoe holder 3 through the mounting portion 42. Please refer to Figure 8 , this figure is the structural schematic diagram of the brake shoe carrier.

[0034] The orientation term "outer end" used in this article, and the orientation term "inner end" used below, are defined based on the center of the beam body of the beam frame 1 in the length direction. That is to say, the end far from the orientation where the center of the beam body is located is the outer end, and the end close to the orientation where the center of the beam body is located is the inner end. It should be understood that the use of the above orientation terms is only for clearly describing the composition and structural adaptation relationship and does not constitute a limitation on the essential content defined by this solution.

[0035] In this solution, the outer contour of the cross-section of the beam body of the beam frame 1 can be selected according to the associated components to be adapted, for example, but not limited to, in the form of a rectangular cross-section outer contour.

[0036] In order to further control the manufacturing cost, the beam frame structure can be further optimized. The beam frame 1 can be formed by butt-welding two channel steels, preferably standard profiles. Specifically, after cutting two channel steels according to the length of the beam body, the notch openings are butt-welded together to enclose and form a hollow beam body. In this way, on the basis of meeting the same load-bearing capacity, the cost can be minimized.

[0037] Furthermore, the inner end of the brake shoe carrier 3 can have an insertion part 32, and the insertion part 32 is inserted and fixed in the hollow beam body. After the insertion is completed, it can be fixed by welding, which is convenient to operate and can form a reliable connection relationship.

[0038] Combined Figure 6 and Figure 7 As shown, the brake shoe mating part 31 includes a vertical plate 311 and a clamping block 312 fixedly arranged on one side plate surface of the vertical plate 311; correspondingly, as Figure 8 shown, the installation part 42 of the brake shoe 4 is a clamping groove 421 formed on the other side body thereof and adapted to the clamping block 312. The clamping block 312 is adapted to the clamping groove 421 to achieve the basic positioning connection between the brake shoe 4 and the brake shoe carrier 3.

[0039] On this basis, an insertion through hole 3111 is formed on the plate surface of the vertical plate 311 beside the clamping block 312, and a pin hole 422 is formed on the body of the brake shoe 4 beside the clamping groove 421. The pin hole 422 is concentrically arranged with the insertion through hole 3111 to fix the adapted brake shoe carrier 3 and brake shoe 4 through a riveting fastener 7. Of course, the two can also be fixedly connected by using threaded fasteners.

[0040] Furthermore, a rib plate 313 extending horizontally is fixedly arranged on the other side plate surface of the vertical plate 311 to obtain good overall load-bearing strength.

[0041] In addition, the brake beam provided in this solution further includes two slider wear sleeves 5, which are respectively sleeved on the sliders 43 at the outer ends of the corresponding brake shoes 4 and can be further fixed by riveting.

[0042] In addition, it further includes a safety chain 6 connected to the beam frame 1 to be connected to the bogie frame body through the safety chain 6 to prevent abnormal detachment onto the rail surface and affect the train operation safety.

[0043] Without loss of generality, this embodiment takes the clamping block and clamping groove adaptation structure shown in the figure as a preferred example to elaborate the fixed connection scheme between the brake shoe carrier 3 and the brake shoe 4. It should be noted that the connection method between the brake shoe carrier 3 and the brake shoe 4 can also adopt other structures. For example, the brake shoe can be optionally equipped with existing general products to achieve interchange with general parts, as long as the use function requirements are met, they are all within the scope claimed in this application.

[0044] It should be further noted that for the pivot seat 2 adapted to the brake lever, two pivot seats 2 are taken as the preferred example in this embodiment. It should be understood that the number of the pivot seats 2 can be configured according to the number of the adapted lever interfaces, rather than being limited to the two shown in the figure. As long as the pivot seat 2 is fixed on the side beam body relative to the middle of the beam frame 1, it is within the scope of protection claimed in this application.

[0045] In addition to the aforementioned brake beam, this embodiment also provides a bogie, including a braking system that adopts the brake beam as described above to reduce the occupation of the middle assembly space. It should be understood that the other functional components of this braking system are not the core inventive points of this application. For example, brake cylinders, brake levers, brake shoes, etc. can be implemented by those skilled in the art based on the prior art, so they will not be elaborated herein.

[0046] In addition to the aforementioned bogie, this embodiment also provides a railway crane, including the bogie as described above. It should be understood that the other functional components of this bogie are not the core inventive points of this application and can be implemented by those skilled in the art based on the prior art, so they will not be elaborated herein.

[0047] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. Brake beam, characterized in that, Comprising: A beam frame having a hollow beam body with a constant cross-section arranged along the length direction. The outer contour of the cross-section of the beam body is rectangular and is formed by butt-welding two channel steels; A fulcrum seat fixed to the side beam body relative to the middle of the beam frame. The fulcrum seat has an interface for adapting to a brake lever; Two brake shoe brackets respectively fixed at both ends of the beam frame. The inner end of the brake shoe bracket has an insertion part which is inserted and fixed in the hollow beam body, and the outer end of the brake shoe bracket has a brake shoe matching part; Two brake shoes respectively corresponding to the two brake shoe brackets. One side body of the brake shoe has a brake shoe mounting surface, and the other side body has a mounting part adapted to the brake shoe matching part; The brake shoe matching part includes a vertical plate and a block fixed to one side plate surface of the vertical plate. The mounting part of the brake shoe is a slot formed on the other side body of the brake shoe, and the slot is adapted to the block; moreover, an insertion through-hole is formed on the plate surface of the vertical plate beside the block, and a pin hole is formed on the body of the brake shoe beside the slot. The pin hole and the insertion through-hole are concentrically arranged to fix the adapted brake shoe bracket and the brake shoe through a fastener; The brake beam further includes a safety chain connected to the beam frame.

2. The brake beam according to claim 1, wherein, A rib plate extending horizontally is fixedly arranged on the other side plate surface of the vertical plate.

3. The brake beam according to claim 1, characterized in that, Also comprising: Two slider wear sleeves respectively sleeved on the sliders at the outer ends of the corresponding brake shoes.

4. Bogie, including a braking system, characterized in that, The braking system adopts the brake beam according to any one of claims 1 to 3.

5. Railway crane, including a bogie, characterized in that, The bogie adopts the bogie according to claim 4.

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