Freight locomotive brake disc

Abstract

The utility model discloses a freight locomotive brake disc, which relates to the technical field of brake discs and comprises a fixed disc and supporting strips. Eight sets of evenly-distributed supporting strips are fixedly connected to the arc surface of the outer side of the fixing disc, damping rings are arranged in the fixing disc and the supporting strips, a plurality of evenly-distributed damping springs are arranged in the damping rings, and brake rings are fixedly connected to the surfaces of the outer sides of the eight sets of supporting strips. A friction layer is arranged on the arc surface of the outer side of the brake ring, a grip is arranged on the front side of the fixing disc and fixed to the surface of the front side of the fixing disc through fixing bolts, and a nut anti-striking protection pressing ring is arranged on the surface of the rear side of the fixing disc. And meanwhile, the braking speed and the braking effect are improved, heat generated by friction can be guided, heat dissipation is accelerated, the service life of the brake disc can be prolonged, the stability of the brake disc can be improved, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of brake discs, in particular to a brake disc for freight locomotives. Background Art

[0002] The brake disc is the friction component of the disc brake. In addition to having the strength and rigidity required as a component, it should also have the highest possible and stable friction coefficient, as well as appropriate wear resistance, heat resistance, heat dissipation and heat capacity. The brake disc is a metal disc, which is divided into two types: axle disc and wheel disc. The axle disc is mounted on the axle, and the wheel disc is mounted on the wheel. It is made of alloy steel and rotates with the wheel. When the vehicle brakes during driving, the caliper holds the brake disc, generating heat through friction, thereby converting the kinetic energy of the EMU into heat energy and dissipating it, achieving the purpose of deceleration.

[0003] Generally, there are round holes on the brake disc, which is used to reduce weight and increase friction. There are many types of brake discs, and the characteristic is thin wall. Different types of brake discs have different disc diameters, disc thickness and gap size between the two discs. The thickness and height of the disc hub are also different.

[0004] The existing locomotive brake disc, due to its lack of impact absorption components, cannot absorb the tiny vibrations generated when the locomotive starts, causing the brake disc to detach due to the vibration for a long time, which can easily cause brake failure, thereby affecting the user experience of the brake disc, and in severe cases can cause traffic accidents. For this reason, we propose a freight locomotive brake disc. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a freight locomotive brake disc with a shock-absorbing effect, which can absorb the vibration generated when the locomotive is started, while improving the braking speed and braking effect, and can also guide the heat generated by friction to accelerate the heat dissipation, thereby increasing the service life and stability of the brake disc, having high practicality and effectively solving the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a freight locomotive brake disc includes a fixed disc and a support bar;

[0007] The outer arc surface of the fixed plate is fixedly connected with eight groups of support bars which are evenly distributed. The fixed plate and the support bars are both provided with shock-absorbing rings. The shock-absorbing rings are provided with a number of evenly distributed shock-absorbing springs. The outer surfaces of the eight groups of support bars are fixedly connected with brake rings. The outer arc surface of the brake ring is set as a friction layer. A handle is set on the front side of the fixed plate. The handle is fixed to the front surface of the fixed plate by fixing bolts. The rear surface of the fixed plate is provided with a nut anti-impact protection pressure ring.

[0008] The fixed plate is used to fix the support bar, and the support bar is used to fix the brake ring. When the brake ring comes into contact with the external brake, the freight locomotive wheel can be braked to drive the freight locomotive to stop running. The handle is fixed to the front surface of the fixed plate by a fixing bolt, which can provide a fulcrum for the user to carry the brake disc of the freight locomotive, facilitating transportation and transfer. The nut anti-impact protection pressure ring can protect the fastening nut from being hit by flying stones from the vertical direction when the freight locomotive is running, thereby improving the reliability of the brake disc fasteners.

[0009] Furthermore, the friction layer includes a shock absorbing layer and a braking layer. The braking layer is distributed on the front and rear end surfaces of the shock absorbing layer. The friction layer is made of wear-resistant steel.

[0010] When the friction layer comes into contact with the external brake, it can wear first, thereby extending the service life of the brake disc.

[0011] Furthermore, three evenly distributed external boss clamp wheels are fixedly connected to the outer arc surface of the brake ring, the outer ends of the external boss clamp wheels are arc-shaped, and a mounting hole is opened on the front side of each external boss clamp wheel.

[0012] The outer end of the outer boss clamp wheel is arc-shaped, which can reduce the loss of other accessories during braking and extend the service life of the brake disc. The mounting hole is used to cooperate with the brake disc for installation and positioning.

[0013] Furthermore, a positioning hole is provided in the middle of the front side of the fixing plate, and evenly distributed threaded fixing holes are provided on the front side of the fixing plate, and fastening bolts are threadedly connected to the front sides of the threaded fixing holes.

[0014] The positioning hole is used for positioning the brake disc during installation, the threaded fixing hole is used to fix the brake disc, and the fastening bolt is used in conjunction with the nut anti-impact protection ring.

[0015] Furthermore, the front and rear end surfaces of the brake ring are fixedly connected with a plurality of evenly distributed raised strips, the raised strips are made of hard silicone material, the front and rear end surfaces of the brake ring are provided with a plurality of evenly distributed concave friction grooves, the concave friction grooves are arranged between two adjacent raised strips, and the front and rear end surfaces of the brake ring are provided with a plurality of evenly distributed heat dissipation holes, the heat dissipation holes are distributed on the upper and lower sides of the concave friction grooves.

[0016] The raised strips are made of hard silicone material, which can increase the roughness of the front and rear end surfaces of the brake ring. When braking occurs, the braking speed of the brake ring and the external brake can be increased. After the concave friction groove contacts the external convex friction strip, the friction between the brake disc and the wheel can be increased. The heat dissipation holes can guide the air on both sides of the connection, accelerate the dissipation of heat generated by friction, and improve the service life and stability of the brake disc.

[0017] Furthermore, an anti-collision protection cover corresponding to the threaded fixing hole is fixedly provided on the front surface of the nut anti-impact protection pressure ring, and a countersunk hole is opened inside each of the anti-collision protection covers, and a fastening nut is arranged in each of the countersunk holes, and the fastening nut is used in conjunction with the fastening bolt.

[0018] The provision of the anti-collision protective sleeve and the countersunk hole can protect the fastening nut from being hit by flying stones from a vertical direction when the freight locomotive is running, thereby improving the reliability of the brake disc fastener.

[0019] Compared with the prior art, the utility model has the following advantages:

[0020] 1. The fixed plate is used to fix the support bar, and the support bar is used to fix the brake ring. When the brake ring comes into contact with the external brake, the freight locomotive wheel can be braked to drive the freight locomotive to stop running. The handle is fixed to the front surface of the fixed plate by the fixing bolt, which can provide a fulcrum for the user to carry the brake disc of the freight locomotive, facilitating transportation and transfer. The nut anti-impact protection pressure ring can protect the fastening nut from being hit by flying stones from the vertical direction when the freight locomotive is running, thereby improving the reliability of the brake disc fastener.

[0021] 2. When the friction layer comes into contact with the external brake, it may wear out first, thereby extending the service life of the brake disc. The outer end of the outer boss card wheel is arc-shaped. During the braking process, it can reduce the loss of other accessories and extend the service life of the brake disc. The mounting hole is used to cooperate with the installation and positioning of the brake disc.

[0022] 3. The raised strips are made of hard silicone material, which can increase the roughness of the front and rear end surfaces of the brake ring. When braking occurs, the braking speed of the brake ring and the external brake can be increased. After the concave friction groove contacts the external convex friction strip, the friction between the brake disc and the wheel can be increased. The heat dissipation holes can guide the air on both sides of the connection, accelerate the dissipation of heat generated by friction, and improve the service life and stability of the brake disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model.

[0024] Figure 2 The utility model structure Figure 1 Enlarged schematic diagram at point A in the middle.

[0025] Figure 3 This is a schematic diagram of the brake ring structure of the utility model.

[0026] Figure 4 It is a schematic diagram of the anti-impact protection pressure ring of the structural nut of the utility model.

[0027] In the figure: 1 fixed plate, 2 support bar, 3 brake ring, 4 friction layer, 41 shock absorbing layer, 42 brake layer, 5 outer boss clamping wheel, 51 mounting hole, 6 positioning hole, 7 fastening bolt, 8 handle, 9 raised bar, 10 concave friction groove, 11 heat dissipation hole, 12 nut anti-impact protection pressure ring, 121 anti-collision protection cover, 122 countersunk hole, 123 fastening nut. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-4 ,This embodiment provides a technical solution: a freight locomotive brake disc includes a fixed disc 1 and a support bar 2;

[0030] Eight evenly distributed groups of support bars 2 are fixedly connected to the outer arc surface of the fixed plate 1, shock-absorbing rings are provided inside the fixed plate 1 and the support bars 2, and a number of evenly distributed shock-absorbing springs are provided inside the shock-absorbing rings. Braking rings 3 are fixedly connected to the outer surfaces of the eight groups of support bars 2, and the outer arc surface of the brake ring 3 is set as a friction layer 4. A handle 8 is provided on the front side of the fixed plate 1, and the handle 8 is fixed to the front surface of the fixed plate 1 by fixing bolts. A nut anti-impact protection pressure ring 12 is provided on the rear surface of the fixed plate 1.

[0031] The fixed plate 1 is used to fix the support bar 2, and the support bar 2 is used to fix the brake ring 3. When the brake ring 3 comes into contact with the external brake, the freight locomotive wheel can be braked to drive the freight locomotive to stop running. The handle 8 is fixed to the front surface of the fixed plate 1 by a fixing bolt, which can provide a fulcrum for the user to carry the brake disc of the freight locomotive, facilitating transportation and transfer. The nut anti-impact protection pressure ring 12 can protect the fastening nut 123 from being hit by flying stones from the vertical direction when the freight locomotive is running, thereby improving the reliability of the brake disc fastener.

[0032] The friction layer 4 includes a shock absorbing layer 41 and a brake layer 42. The brake layer 42 is distributed on the front and rear end surfaces of the shock absorbing layer 41. The friction layer 4 is made of wear-resistant steel.

[0033] When the friction layer 4 comes into contact with the external brake, it may be worn first, thereby extending the service life of the brake disc.

[0034] Three evenly distributed outer boss clamp wheels 5 are fixedly connected to the outer arc surface of the brake ring 3 . The outer ends of the outer boss clamp wheels 5 are arc-shaped, and a mounting hole 51 is opened on the front side of each outer boss clamp wheel 5 .

[0035] The outer end of the outer boss clamping wheel 5 is arc-shaped, which can reduce the loss of other accessories during braking and extend the service life of the brake disc. The mounting hole 51 is used to cooperate with the brake disc to install and position.

[0036] A positioning hole 6 is provided in the middle of the front side of the fixing plate 1 , and evenly distributed threaded fixing holes are provided on the front side of the fixing plate 1 , and fastening bolts 7 are threadedly connected to the front sides of the threaded fixing holes.

[0037] The positioning hole 6 is used for positioning the brake disc during installation, the threaded fixing hole is used for fixing the brake disc, and the fastening bolt 7 is used in conjunction with the nut anti-impact protection pressure ring 12.

[0038] The front and rear end surfaces of the brake ring 3 are fixedly connected with a number of evenly distributed raised strips 9, and the raised strips 9 are made of hard silicone material. The front and rear end surfaces of the brake ring 3 are provided with a number of evenly distributed concave friction grooves 10, and the concave friction groove 10 is arranged between two adjacent raised strips 9. The front and rear end surfaces of the brake ring 3 are provided with a number of evenly distributed heat dissipation holes 11, and the heat dissipation holes 11 are distributed on the upper and lower sides of the concave friction grooves 10.

[0039] The raised strip 9 is made of hard silicone material, which can improve the roughness of the front and rear end surfaces of the brake ring 3. When braking occurs, the braking speed of the brake ring 3 and the external brake can be increased. After the concave friction groove 10 contacts the external convex friction strip, the friction between the brake disc and the wheel can be increased. The heat dissipation hole 11 can guide the air on the front and rear sides of the connection, accelerate the dissipation of heat generated by friction, and improve the service life and stability of the brake disc.

[0040] An anti-collision protection cover 121 corresponding to the threaded fixing hole is fixed on the front surface of the nut anti-impact protection ring 12. A countersunk hole 122 is opened inside each anti-collision protection cover 121. A fastening nut 123 is arranged in each countersunk hole 122. The fastening nut 123 is used in conjunction with the fastening bolt 7.

[0041] The provision of the anti-collision protection cover 121 and the countersunk hole 122 can protect the fastening nut 123 from being hit by flying stones from a vertical direction when the freight locomotive is running, thereby improving the reliability of the brake disc fastener.

[0042] The working principle of a freight locomotive brake disc provided by the utility model is as follows: a fixed disc 1 is used to fix a support bar 2, and the support bar 2 is used to fix a brake ring 3. When the brake ring 3 comes into contact with an external brake, the wheel of the freight locomotive can be braked to drive the freight locomotive to stop running. The handle 8 is fixed to the front surface of the fixed disc 1 by a fixing bolt, which can provide a fulcrum for the user to carry the freight locomotive brake disc, thereby facilitating transportation and transfer. When the friction layer 4 comes into contact with an external brake, it can be worn first, thereby extending the service life of the brake disc. The outer end of the outer boss clamping wheel 5 is arc-shaped. During braking, the loss of other accessories can be reduced, thereby extending the service life of the brake disc. The mounting hole 51 is used to cooperate with the brake disc installation positioning, and the positioning hole 6 is used for the brake disc. Positioning during installation, the threaded fixing hole is used to fix the brake disc, the fastening bolt 7 is used in conjunction with the nut anti-impact protection pressure ring 12, the raised strip 9 is made of hard silicone material, which can improve the roughness of the front and rear end faces of the brake ring 3. When braking occurs, the braking speed of the brake ring 3 and the external brake can be increased. After the concave friction groove 10 contacts the external convex friction strip, the friction between the brake disc and the wheel can be increased. The heat dissipation hole 11 can guide the air on the front and rear sides of the connection, accelerate the dissipation of heat generated by friction, and improve the service life and stability of the brake disc. The setting of the anti-collision protection cover 121 and the countersunk hole 122 can protect the fastening nut 123 from being hit by flying stones from the vertical direction when the freight locomotive is running, thereby improving the reliability of the brake disc fastener.

[0043] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A freight locomotive brake disc, characterized in that: It comprises a fixing plate (1) and a supporting bar (2); Eight groups of support bars (2) are evenly distributed and fixedly connected to the outer arc surface of the fixed disk (1); shock-absorbing rings are provided inside the fixed disk (1) and the support bars (2); a plurality of evenly distributed shock-absorbing springs are provided inside the shock-absorbing rings; brake rings (3) are fixedly connected to the outer surfaces of the eight groups of support bars (2); the outer arc surface of the brake ring (3) is provided as a friction layer (4); a handle (8) is provided on the front side of the fixed disk (1); the handle (8) is fixed to the front side surface of the fixed disk (1) by fixing bolts; and a nut anti-impact protection pressure ring (12) is provided on the rear side surface of the fixed disk (1).

2. A freight locomotive brake disc according to claim 1, characterized in that: The friction layer (4) comprises a shock absorbing layer (41) and a braking layer (42). The braking layer (42) is distributed on the front and rear end surfaces of the shock absorbing layer (41). The friction layer (4) is made of wear-resistant steel.

3. A freight locomotive brake disc according to claim 1, characterized in that: Three evenly distributed external boss clamping wheels (5) are fixedly connected to the outer arc surface of the brake ring (3); the outer ends of the external boss clamping wheels (5) are arc-shaped, and a mounting hole (51) is provided on the front side of each external boss clamping wheel (5).

4. A freight locomotive brake disc according to claim 1, characterized in that: A positioning hole (6) is provided in the middle of the front side of the fixing plate (1), and evenly distributed threaded fixing holes are provided on the front side of the fixing plate (1), and fastening bolts (7) are threadedly connected to the front sides of the threaded fixing holes.

5. A freight locomotive brake disc according to claim 1, characterized in that: The front and rear end surfaces of the brake ring (3) are fixedly connected with a plurality of evenly distributed raised strips (9), the raised strips (9) being made of a hard silicone material, the front and rear end surfaces of the brake ring (3) are provided with a plurality of evenly distributed concave friction grooves (10), the concave friction grooves (10) being arranged between two adjacent raised strips (9), and the front and rear end surfaces of the brake ring (3) are provided with a plurality of evenly distributed heat dissipation holes (11), the heat dissipation holes (11) being distributed on the upper and lower sides of the concave friction grooves (10).

6. A freight locomotive brake disc according to claim 1, characterized in that: An anti-collision protection sleeve (121) corresponding to the threaded fixing hole is fixedly provided on the front surface of the nut anti-impact protection ring (12), a countersunk hole (122) is provided inside each of the anti-collision protection sleeves (121), a fastening nut (123) is provided inside each of the countersunk holes (122), and the fastening nut (123) is used in conjunction with the fastening bolt (7).

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