Force-measuring brake beam, dynamic brake shoe pressure measuring device and railway wagon

Abstract

The utility model provides a dynamometric brake beam, a dynamic brake shoe pressure measuring device and a railway wagon. The dynamometric brake beam comprises a brake beam, a brake shoe pressure measuring device and a dynamometric brake shoe pressure measuring device, the brake head is provided with an inner wall surface and an outer wall surface which are oppositely arranged in the thickness direction of the brake head, and the outer wall surface is connected with the brake beam; the brake shoe is arranged on the inner wall surface of the brake shoe holder; the force measuring sensor is arranged on the inner wall face and abuts against the side, facing the inner wall face, of the brake shoe. Through the technical scheme provided by the invention, the problem that the mounting mode of the force transducer in the related technology is not suitable for detecting the dynamic brake shoe pressure can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to railway vehicle technical field, specifically, relate to a kind of force measuring brake beam, dynamic brake shoe pressure measuring device and railway wagon. BACKGROUND

[0002] In order to reduce the ten-ton heavy load combined railway wagon coupler force and longitudinal impulse, it is necessary to concentrate on cracking key technologies such as online dynamic comprehensive monitoring and detection method of heavy haul vehicle, build a relatively complete vehicle-mounted intelligent monitoring system, and monitor the brake system, coupler force, wheel-rail force, brake beam pressure, vibration acceleration and other technologies.

[0003] In related technologies, the most commonly used brake beam pressure measurement method for railway vehicles is to install a clamp on the brake shoe, the clamp extends between the brake shoe and the wheel tread, and the force sensor is installed on the clamp and located between the brake shoe and the wheel tread.

[0004] However, when detecting dynamic brake shoe pressure, the brake shoe will be randomly worn (even to eccentric wear), so that the shape of the brake shoe is irregular, and the installation method of the force sensor in related technologies is not suitable for detecting dynamic brake shoe pressure. SUMMARY

[0005] The utility model provides a kind of force measuring brake beam, dynamic brake shoe pressure measuring device and railway wagon to solve the problem of the installation method of the force sensor in related technologies is not suitable for detecting dynamic brake shoe pressure.

[0006] According to one aspect of the utility model, a force measuring brake beam is provided, which includes: a brake beam; a brake shoe holder having an inner wall surface and an outer wall surface oppositely arranged in its thickness direction, the outer wall surface being connected with the brake beam; a brake shoe arranged on the inner wall surface of the brake shoe holder; and a force sensor arranged on the inner wall surface and abutting against a side of the brake shoe facing the inner wall surface.

[0007] Further, a lead hole is provided on the brake shoe holder, the lead hole penetrating the outer wall surface and the inner wall surface, and the lead wire of the force sensor passes out of the lead hole.

[0008] Further, the force measuring brake beam further includes a wire harness seat provided on the brake beam, and the wire harness seat is used for fixing the lead wire.

[0009] Further, the wire harness seat includes a seat body and a wire clamping structure provided on the seat body.

[0010] Further, the force measuring brake beam further includes a brake shoe bolt movably provided in the brake shoe holder and the brake shoe along the length direction of the brake shoe holder, the force measuring brake beam includes at least two force sensors, and the force sensors are arranged on both sides of the brake shoe bolt in the width direction of the brake shoe holder.

[0011] Further, the axis of each force sensor intersects the shaft center of the brake shoe carrier.

[0012] Further, the brake shoe carrier comprises a brake shoe carrier body and a sensor mounting seat arranged on the brake shoe carrier body, one end of the sensor mounting seat is provided with a mounting hole, and the force sensor is arranged in the mounting hole.

[0013] Further, the brake shoe carrier further comprises a reinforcing rib block arranged between the brake shoe carrier body and the sensor mounting seat, the reinforcing rib block is located on the side of the sensor mounting seat away from the brake shoe, the reinforcing rib block has two adjacent connecting surfaces, and the two connecting surfaces are connected with the brake shoe carrier body and the sensor mounting seat respectively; and / or the brake shoe carrier is formed by an integral casting process.

[0014] According to another aspect of the present application, a dynamic brake shoe pressure measuring device is provided, which comprises the force measuring brake beam provided above.

[0015] According to still another aspect of the present application, a railway freight car is provided, which comprises the force measuring brake beam provided above.

[0016] The technical scheme of the present application is applied to the force measuring brake beam, which comprises a brake beam, a brake shoe carrier, a brake shoe and a force sensor, the brake shoe is arranged on the inner wall surface of the brake shoe carrier, the force sensor is arranged on the inner wall surface and abuts against the side of the brake shoe facing the inner wall surface, in the process of train braking, the brake beam is close to the wheel, so that the brake shoe carrier drives the brake shoe to abut against the wheel, at this time, the dynamic braking force of the wheel exerted on the brake shoe is equal to the force of the brake shoe exerted on the brake shoe carrier body, the force sensor is used to detect the force of the brake shoe exerted on the brake shoe carrier body, so as to indirectly detect the dynamic braking force of the wheel exerted on the brake shoe. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the exemplary embodiments of the present application and their description, serve the purpose of explaining the present application, and do not constitute an improper limitation to the present application. In the drawings:

[0018] Fig. 1 A structural schematic view of the force measuring brake beam provided according to the embodiment of the present application is shown;

[0019] Fig. 2 A structural schematic view of the brake shoe carrier body of the force measuring brake beam provided according to the embodiment of the present application is shown;

[0020] Fig. 3 A structural schematic view of another perspective of the brake shoe carrier body of the force measuring brake beam provided according to the embodiment of the present application is shown.

[0021] Wherein, the above-mentioned drawings include the following reference signs:

[0022] 1, brake shoe body; 11, inner wall surface; 12, outer wall surface; 121, lead hole;

[0023] 40, sensor mounting seat; 41, mounting hole;

[0024] 50, reinforcing rib block; 70, brake beam. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0026] As shown in the drawings, Figs. 1 to 3 The embodiment of the present application provides a force measuring brake beam, which comprises a brake beam 70, a brake shoe body 1, a brake shoe and a force measuring sensor. The brake shoe body 1 has an inner wall surface 11 and an outer wall surface 12 arranged oppositely in the thickness direction thereof. The outer wall surface 12 is connected with the brake beam 70. The brake shoe is arranged on the inner wall surface 11 of the brake shoe body 1. The force measuring sensor is arranged on the inner wall surface 11 and abuts against the side of the brake shoe facing the inner wall surface 11.

[0027] The force measuring brake beam comprises a brake beam 70, a brake shoe body 1, a brake shoe and a force measuring sensor. The brake shoe is arranged on the inner wall surface 11 of the brake shoe body 1. The force measuring sensor is arranged on the inner wall surface 11 and abuts against the side of the brake shoe facing the inner wall surface 11. In the process of train braking, the brake beam is close to the wheel so as to drive the brake shoe to abut against the wheel. At this time, the dynamic braking force of the wheel acting on the brake shoe is equal to the force of the brake shoe acting on the brake shoe body 10. The force measuring sensor is used to detect the force of the brake shoe acting on the brake shoe body 10, so as to indirectly detect the dynamic braking force of the wheel acting on the brake shoe.

[0028] It should be noted that the brake beam is an important component for transmitting braking force on a railway vehicle. It bears large alternating load and impact force in the process of train running, especially needs to bear braking force and reaction force of the wheel on the brake shoe during braking.

[0029] As shown in the drawings, Fig. 2As shown, the brake shoe carrier 1 is provided with a lead hole 121 penetrating the outer wall surface 12 and the inner wall surface 11, and the lead wire of the force sensor is drawn out of the lead hole 121. The lead wire of the force sensor is drawn out of the lead hole 121, so that the lead wire is prevented from interfering with external structures and being damaged during the approach or departure of the force sensor brake shoe carrier to the wheel, thereby prolonging the service life of the lead wire.

[0030] In the embodiment, the force measuring brake beam further comprises a wire harness seat arranged on the brake beam 70, the wire harness seat is used for fixing the lead wire, so that the arrangement of the lead wire is neat, and the lead wire is further prevented from interfering with external structures and being damaged during the approach or departure of the force sensor brake shoe carrier to the wheel, thereby prolonging the service life of the lead wire.

[0031] In the embodiment, the wire harness seat comprises a seat body and a wire clamping jaw arranged on the seat body, the seat body is arranged on the brake beam 70, the wire clamping jaw comprises a fixed jaw and a movable jaw, the fixed jaw is fixedly arranged on the seat body, and the movable jaw is movably arranged on the seat body, the wire clamping jaw has a clamping state and a relaxed state, the fixed jaw and the movable jaw clamp the lead wire when the wire clamping jaw is in the clamping state, the fixed jaw and the movable jaw release the lead wire when the wire clamping jaw is in the relaxed state, and the movable jaw moves away from the fixed jaw during the switching of the wire clamping jaw from the clamping state to the relaxed state.

[0032] In the embodiment, the force measuring brake beam further comprises a brake shoe bolt, the brake shoe bolt is movably arranged in the brake shoe carrier 1 and the brake shoe along the length direction of the brake shoe carrier 1, the force measuring brake beam comprises at least two force sensors, and the force sensors are arranged on both sides of the brake shoe bolt in the width direction of the brake shoe carrier 1. The brake shoe bolt is used for connecting the brake shoe and the brake shoe carrier 1, and the force sensors are arranged on both sides of the brake shoe bolt in the width direction of the brake shoe carrier 1, so that the arrangement position of the force sensors can avoid the brake shoe bolt and the movement path of the brake shoe bolt, and the installation position of the force sensors does not interfere with the brake shoe bolt, thereby reducing the structural modification of the brake shoe carrier 1, retaining the connection structure between the existing brake shoe carrier 1 and the brake shoe, retaining the cooperation relationship between the brake shoe bolt, the brake shoe and the brake shoe carrier in actual application, and making the detection result of the force sensor better reflect the dynamic brake shoe pressure in the actual application environment.

[0033] It should be noted that the length direction of the brake shoe carrier 1 is the up-down direction in the figure, Fig. 3 and the width direction of the brake shoe carrier 1 is the left-right direction in the figure. Fig. 3

[0034] ​The at least two force sensors arranged as described above can effectively transmit positive pressure in the length direction of the brake shoe carrier 1 during braking, improving detection accuracy. Moreover, the force balance of the two groups of force sensors on both sides of the brake shoe pin in the width direction of the brake shoe carrier 1 is improved, so that the detection results of the force sensors can better reflect the dynamic brake shoe pressure in the actual application environment.

[0035] In the present embodiment, the axis of each force sensor intersects the axis of the brake shoe carrier body 10, and the force sensor can measure the radial pressure in the radial direction of the wheel corresponding to the brake shoe carrier body 10, so that the at least two force sensors effectively transmit positive pressure.

[0036] The axis of the brake shoe carrier body 10 refers to the intersection of the symmetry plane of the brake shoe carrier body 10 in the width direction and the axis of the wheel corresponding to the brake shoe carrier body 10.

[0037] As shown in Fig. 2 The brake shoe carrier 1 includes a brake shoe carrier body 10 and a sensor mounting seat 40 arranged on the brake shoe carrier body 10. One end of the sensor mounting seat 40 is provided with a mounting hole 41, and the force sensor is arranged in the mounting hole 41. By arranging the sensor mounting seat 40 and arranging the force sensor in the mounting hole 41 of the sensor mounting seat 40, the force sensor is conveniently and accurately installed, and the force sensor is protected by the sensor mounting seat 40.

[0038] As shown in Fig. 2 The brake shoe carrier 1 further includes a reinforcing rib 50 arranged between the brake shoe carrier body 10 and the sensor mounting seat 40. The reinforcing rib 50 is located on the side of the sensor mounting seat 40 away from the brake shoe, and the reinforcing rib 50 has two adjacent connecting surfaces connected with the brake shoe carrier body 10 and the sensor mounting seat 40, respectively. By arranging the reinforcing rib 50, the connection reliability between the brake shoe carrier body 10 and the sensor mounting seat 40 is improved.

[0039] In the present embodiment, the brake shoe carrier 1 is formed by an integral casting process, which simplifies the processing process and improves the structural strength and consistency of the brake shoe carrier 1.

[0040] The utility model discloses a further embodiment provides a kind of dynamic brake shoe pressure measuring device, dynamic brake shoe pressure measuring device includes the force measuring brake beam provided above. Application brake shoe pressure measuring device provided in this embodiment, brake shoe is arranged on the inner wall surface 11 of brake shoe carrier 1, force sensor is arranged on the inner wall surface 11 and is abutted with the side of brake shoe towards inner wall surface 11, during train braking process, brake beam is close to wheel, to make brake shoe carrier 1 drive brake shoe and wheel abut, dynamic braking force of wheel on brake shoe at this time is equal with the force that brake shoe exerts on brake shoe carrier main body 10, the force that brake shoe exerts on brake shoe carrier main body 10 is detected using force sensor, to indirectly detect the dynamic braking force of wheel on brake shoe.

[0041] Specifically, as shown in Fig. 3 Brake shoe pressure measuring device further includes base, wheel set support, wheel set, brake shoe, push rod and brake cylinder, wheel set support is arranged on base, wheel set is rotatably arranged on wheel set support, brake cylinder is arranged on base and is drivenly connected with push rod, push rod is drivenly connected with brake beam 70, the extension direction of brake beam 70 is parallel with the axial direction of wheel set, the moving direction of brake beam 70 is perpendicular to the axial direction of wheel set, brake shoe carrier is arranged on the side of brake beam towards wheel set, brake shoe is arranged on the side (i.e. inner wall surface 11) of brake shoe carrier towards wheel set, brake cylinder drives push rod, brake beam 70, brake shoe and brake shoe carrier to be close to or away from wheel set.

[0042] A further embodiment of the utility model provides a kind of railway freight car, railway freight car includes the force measuring brake beam provided above. Application railway vehicle provided in this embodiment, brake shoe is arranged on the inner wall surface 11 of brake shoe carrier 1, force sensor is arranged on the inner wall surface 11 and is abutted with the side of brake shoe towards inner wall surface 11, during train braking process, brake beam is close to wheel, to make brake shoe carrier 1 drive brake shoe and wheel abut, dynamic braking force of wheel on brake shoe at this time is equal with the force that brake shoe exerts on brake shoe carrier main body 10, the force that brake shoe exerts on brake shoe carrier main body 10 is detected using force sensor, to indirectly detect the dynamic braking force of wheel on brake shoe.

[0043] Specifically, railway vehicle can measure the radial normal pressure of brake shoe to wheel in static or running state using the force measuring brake beam provided above, and measurement accuracy is higher.

[0044] It should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0045] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the Examples are not intended to limit the scope of the present application unless otherwise specified. Also, it is to be understood that the dimensions of the various parts shown in the drawings are not drawn to scale for the sake of convenience. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail because such techniques, methods, and apparatus are considered to be part of the instant application. In all examples shown and discussed herein, any specific value is to be interpreted as illustrative only and not as a limitation. Thus, other examples of exemplary embodiments can have different values. It is to be noted that like numbers and letters refer to like elements throughout the several views of the drawings and, as such, no further discussion with regard thereto is deemed necessary.

[0046] In the description of the present application, it is to be understood that the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal", and "top, bottom" and the like indicated orientation or position relationship are usually based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0047] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0048] In addition, it should be noted that the use of the words "first", "second" and the like to define parts of components is only for the convenience of distinguishing the corresponding parts of components, and the above words have no special meaning unless otherwise stated, therefore, it cannot be understood as a limitation on the scope of protection of the present application.

[0049] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. 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 force measuring brake beam, characterized by, The force measuring brake beam comprises: a brake beam (70); a brake shoe plate (1) having an inner wall surface (11) and an outer wall surface (12) oppositely arranged in a thickness direction of the brake shoe plate (1), the outer wall surface (12) being connected with the brake beam (70); a brake shoe arranged on the inner wall surface (11) of the brake shoe plate (1); a force sensor arranged on the inner wall surface (11) and abutting against a side of the brake shoe facing the inner wall surface (11).

2. The force measuring brake beam of claim 1, wherein, The brake shoe plate (1) is provided with a lead hole (121) penetrating through the outer wall surface (12) and the inner wall surface (11), and a lead wire of the force sensor passes through the lead hole (121).

3. The force measuring brake beam of claim 2, wherein, The force measuring brake beam further comprises a wire harness seat arranged on the brake beam (70), the wire harness seat being used for fixing the lead wire.

4. The force measuring brake beam of claim 3, wherein, The wire harness seat comprises a seat body and a wire clamping structure arranged on the seat body.

5. The force measuring brake beam of claim 1, wherein, The force measuring brake beam further comprises a brake shoe bolt movably penetrating the brake shoe plate (1) and the brake shoe along a length direction of the brake shoe plate (1), the force measuring brake beam comprises at least two force sensors, and the brake shoe bolt is provided with the force sensors on both sides of the brake shoe plate (1) in a width direction of the brake shoe plate (1).

6. The force measuring brake beam of claim 5, wherein, An axis of each force sensor intersects with an axis of the brake shoe plate (1).

7. The force measuring brake beam according to any one of claims 1 to 6, characterized in that, The brake shoe plate (1) comprises a brake shoe plate main body (10) and a sensor mounting seat (40) arranged on the brake shoe plate main body (10), one end of the sensor mounting seat (40) is provided with a mounting hole (41), and the force sensor is arranged in the mounting hole (41).

8. The force measuring brake beam according to claim 7, wherein the brake shoe plate (1) further comprises a reinforcing rib block (50) arranged between the brake shoe plate main body (10) and the sensor mounting seat (40), the reinforcing rib block (50) is located on a side of the sensor mounting seat (40) away from the brake shoe, the reinforcing rib block (50) has two adjacent connecting surfaces, and the two connecting surfaces are connected with the brake shoe plate main body (10) and the sensor mounting seat (40) respectively; and / or the brake shoe plate (1) is formed by an integral casting process.

9. A dynamic brake shoe pressure measuring device characterized by, The dynamic brake shoe pressure measuring device comprises the force measuring brake beam according to any one of claims 1 to 8.

10. A railway wagon characterised in that, The railway wagon comprises the force measuring brake beam according to any one of claims 1 to 8.

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