Railway track wedge-shaped base plate and machining die thereof

Abstract

The utility model discloses a railway track wedge-shaped base plate and a processing mould thereof, the railway track wedge-shaped base plate comprises a wedge-shaped rubber base plate and a metal plate embedded in the rubber base plate, the metal plate is wedge-shaped, and the gradient of the metal plate is the same as that of the rubber base plate. The rubber cushion plate comprises an upper layer part formed above the metal plate and a lower layer part formed below the metal plate; and reinforcing layers are respectively arranged in the upper layer part and the lower layer part. The wedge-shaped metal plate is arranged in the rubber base plate, the compression strength of the rubber base plate is improved, meanwhile, the reinforcing layers are arranged on the upper side and the lower side of the metal plate, the tensile strength of rubber of the upper layer portion and the lower layer portion in the direction perpendicular to the thickness direction is enhanced, and the rubber of the upper layer portion and the lower layer portion is prevented from deforming in the direction perpendicular to the thickness direction. And the problem that the rubber base plate is compressed and deformed under repeated rolling of a train can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of processing railway track fasteners, in particular to a railway track wedge-shaped pad and a processing mold thereof. Background Art

[0002] During the construction process, it is usually necessary to use a wedge-shaped pad to be set between the track and the rail support to adjust the bottom slope of the railway track to meet the conventional requirement of 1:40. The wedge-shaped pads in the prior art are usually made of rubber. Since the wedge-shaped rubber pad is thick on one side and thin on the other side, the static stiffness of the thick side of the pad is relatively low and the deformation is large, resulting in uneven force on the pad: the thick side is subjected to a relatively large force, and the thin side is subjected to a smaller force. Under the repeated rolling of the train, the rubber pad is easily compressed and deformed, and the thick side is crushed.

[0003] In order to solve the problem that the wedge-shaped rubber pad is easily compressed and deformed, a Chinese patent (authorization announcement number: CN211571207U) discloses a wedge-shaped pad with a metal interlayer, which includes a wedge-shaped iron pad and two layers of rubber pads with uniform thickness bonded to the upper and lower sides of the iron pad. Although the wedge-shaped iron pad is provided in the two layers of rubber plates to increase the compressive strength of the pad, the rubber plate will still be compressed and deformed under the repeated rolling of the train. Utility Model Content

[0004] The utility model provides a railway track wedge-shaped pad and a processing die thereof, which are used to further enhance the compressive strength of the pad on the basis of the prior art, reduce the deformation of the rubber plate, and avoid the problem of the rubber plate being compressed and deformed.

[0005] On the one hand, the utility model provides a railway track wedge-shaped pad, which includes a wedge-shaped rubber pad and a metal plate embedded in the rubber pad, the metal plate is wedge-shaped and has the same slope as the rubber pad, and the rubber pad includes an upper layer formed above the metal plate and a lower layer formed below the metal plate;

[0006] Reinforcement layers are respectively arranged in the upper layer part and the lower layer part.

[0007] Optionally, the reinforcement layer includes transverse ribs extending in the transverse direction and longitudinal ribs extending in the longitudinal direction, and a plurality of transverse ribs and a plurality of longitudinal ribs are woven to form a reinforcement layer with a mesh structure.

[0008] Preferably, the reinforcement layer is made of metal material.

[0009] Optionally, the upper and lower surfaces of the metal plate are respectively formed with anti-slip patterns in a mesh structure, and the anti-slip patterns are grooves opened on the metal plate.

[0010] On the other hand, the utility model provides a processing mold for processing the aforementioned railway track wedge-shaped pad, the processing mold comprising a first clamping mold component and a second clamping mold component matched with each other up and down;

[0011] The first mold clamping assembly comprises an upper mold cavity, a cavity wall of the upper mold cavity is provided with a glue injection hole connected to the upper mold cavity, a limiting bolt for abutting against a metal plate to limit the installation of the metal plate, and a first limiting member for limiting the reinforcing layer between the top wall of the upper mold cavity and the metal plate;

[0012] The second mold clamping assembly comprises a lower mold cavity opposite to the upper mold cavity, and a second limiting member for limiting the reinforcing layer between the bottom wall of the lower mold cavity and the metal plate is arranged in the lower mold cavity.

[0013] Specifically, the first mold clamping assembly includes an upper mold, and a first positioning block movably installed in a receiving cavity of the upper mold, and the upper mold cavity is defined by a bottom wall of the first positioning block and a side wall of the upper mold;

[0014] The second mold clamping assembly includes a lower mold and a second positioning block movably installed in the accommodating cavity of the lower mold, and the lower mold cavity is defined by the top wall of the second positioning block and the side wall of the lower mold.

[0015] Furthermore, the top edge of the lower mold extends toward the outer diameter to form a boss, and the second limiting member is a positioning step formed on the boss, and the positioning step can support and limit the reinforcing layer placed thereon.

[0016] Furthermore, the lower end surface of the upper mold can extend into the lower mold cavity and stop and position on the positioning step.

[0017] Optionally, the lower molding cavity includes a first cavity segment and a second cavity segment connected from top to bottom, the cross-sectional area of ​​the first cavity segment is larger than the cross-sectional area of ​​the second cavity segment, and the first cavity segment is coaxially connected with the second cavity segment to form the positioning step.

[0018] Optionally, the bottom wall of the first positioning block is arranged to be inclined to the horizontal plane, and the inclination angle is equal to the wedge angle of the wedge-shaped pad;

[0019] The top wall of the second positioning block is arranged parallel to the horizontal plane.

[0020] Optionally, the first mold clamping assembly further includes a first driving assembly, which is connected to the first positioning block and is used to drive the first positioning block to move up and down in the accommodating cavity of the upper mold.

[0021] Optionally, it further includes a mold opening and closing drive mechanism connected between the upper mold and the lower mold, and the mold opening and closing drive mechanism includes:

[0022] The driving cylinder is fixedly installed on the upper die;

[0023] The telescopic rod has one end connected to the driving cylinder and the other end fixedly connected to the lower mold. The driving cylinder drives the telescopic rod to move telescopically to drive the upper mold and the lower mold to move closer to or away from each other, thereby realizing opening and closing of the mold.

[0024] Compared with the prior art, the advantages of the utility model are:

[0025] 1. In this embodiment, a wedge-shaped metal plate is provided in the rubber pad, which increases the compressive strength of the rubber pad. At the same time, reinforcing layers are provided on the upper and lower sides of the metal plate to enhance the tensile strength of the upper and lower rubber layers in a direction perpendicular to the thickness, thereby preventing the upper and lower rubber layers from deforming in a direction perpendicular to the thickness. This can prevent the rubber pad from being compressed and deformed under repeated rolling of the train.

[0026] 2. In this embodiment, the upper and lower surfaces of the metal plate are respectively formed with anti-slip patterns in the form of mesh grooves. During the rubber vulcanization bonding process, the fluid rubber can penetrate into the mesh grooves, which can enhance the bonding effect between the rubber and the metal plate and ensure a firm bonding.

[0027] 3. The working principle of the processing mold in this embodiment is as follows:

[0028] Place a reinforcing rib obliquely into the upper mold cavity, and make the reinforcing rib parallel to the bottom wall of the first positioning block, and use the first limit piece to install and limit the reinforcing rib; place the metal plate into the upper mold cavity, and arrange the bottom wall of the first positioning block, the reinforcing rib, and the metal plate in sequence from top to bottom, and screw the limit bolt so that one end of the limit bolt stops on the side wall of the metal plate to fix the metal plate; place the reinforcing rib horizontally on the positioning step of the lower mold, and drive the oil cylinder to drive the telescopic rod to move telescopically to drive the upper mold and the lower mold to approach each other until the lower end surface of the upper mold stops on the positioning step; inject fluid rubber into the upper mold cavity from the glue injection hole until the fluid rubber fills the entire upper mold cavity and the lower mold cavity; operate the first drive assembly and the second drive assembly to make the first positioning block and the second positioning block approach each other to compact the upper and lower layers. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0030] Figure 1 It is a schematic diagram of the structure of a railway track wedge pad;

[0031] Figure 2 It is a schematic diagram of the structure of the metal plate;

[0032] Figure 3 It is a structural diagram of the reinforcement layer;

[0033] Figure 4 It is the isometric view of the processing mold;

[0034] Figure 5 It is a structural schematic diagram of the processing mold;

[0035] Figure 6 is a schematic diagram of the installation of the metal plate and the first mold clamping assembly;

[0036] Figure 7 It is a cross-sectional view of the second mold clamping assembly.

[0037] Reference numerals:

[0038] 1. Metal plate; 11. Anti-slip pattern; 2. Upper layer; 3. Lower layer;

[0039] 4. Reinforcement layer; 41. Transverse ribs; 42. Longitudinal ribs;

[0040] 100, first mold clamping assembly; 110, upper mold cavity; 120, upper mold; 121, glue injection hole; 130, first positioning block; 140, limit bolt; 150, first driving assembly; 151, lead screw; 152, ball bearing; 153, hand wheel;

[0041] 200, second mold clamping assembly; 210, lower mold cavity; 220, lower mold; 221, boss; 222, positioning step; 230, second positioning block; 240, second driving assembly;

[0042] 300, mold opening and closing driving mechanism; 310, driving cylinder; 320, telescopic rod. DETAILED DESCRIPTION

[0043] The following will be combined with the attached Figures 1 to 7 The utility model is further described.

[0044] Example 1

[0045] The utility model embodiment provides a railway track wedge-shaped pad, which includes a wedge-shaped rubber pad and a metal plate 1 embedded in the rubber pad, the metal plate 1 is wedge-shaped and has the same slope as the rubber pad, the rubber pad includes an upper layer 2 formed above the metal plate 1 and a lower layer 3 formed below the metal plate 1; a reinforcement layer 4 is respectively arranged in the upper layer 2 and the lower layer 3.

[0046] In this embodiment, a wedge-shaped metal plate 1 is provided in the rubber pad, which increases the compressive strength of the rubber pad. At the same time, a reinforcing layer 4 is provided on the upper and lower sides of the metal plate 1 to enhance the tensile strength of the rubber of the upper layer 2 and the lower layer 3 in a direction perpendicular to the thickness, thereby preventing the rubber of the upper layer 2 and the lower layer 3 from deforming in a direction perpendicular to the thickness, and avoiding the problem of compression deformation of the rubber pad under repeated rolling of the train.

[0047] The upper portion 2 has uniform thickness and is parallel to the upper surface of the metal plate 1 , and the number of reinforcing layers 4 in the upper portion 2 is at least one and is parallel to the upper surface of the metal plate 1 ; the lower portion 3 has uniform thickness, and the number of reinforcing layers 4 in the lower portion 3 is at least one and is parallel to the upper surface of the metal plate 1 .

[0048] The thickness of the lower layer 3 is greater than that of the upper layer 2 . There may be multiple reinforcing layers 4 disposed in the lower layer 3 , and the multiple reinforcing layers 4 are arranged at intervals along the thickness direction of the lower layer 3 .

[0049] The reinforcement layer 4 in this embodiment includes a transverse rib 41 extending in the transverse direction and a longitudinal rib 42 extending in the longitudinal direction. A plurality of transverse ribs 41 and a plurality of longitudinal ribs 42 are woven to form a reinforcement layer 4 with a mesh structure. A plurality of transverse ribs 41 are arranged at intervals in the longitudinal direction, and a plurality of longitudinal ribs 42 are arranged at intervals in the transverse direction. The reinforcement layer 4 is made of metal material. Both the transverse ribs 41 and the longitudinal ribs 42 are metal wires.

[0050] During the production process, the metal plate 1 is spaced apart from the reinforcing layers 4 located on the upper and lower sides thereof. During the rubber vulcanization process, the rubber is bonded to the metal plate 1 and the ribs of the reinforcing layer 4 respectively, and the bonding is firm.

[0051] Optionally, the upper and lower surfaces of the metal plate 1 are respectively formed with anti-skid patterns 11 in a mesh structure, and the anti-skid patterns 11 are grooves opened on the metal plate 1. The anti-skid patterns 11 on the metal plate 1 are mesh grooves, and during the rubber vulcanization bonding process, the fluid rubber can penetrate into the mesh grooves, which can enhance the bonding effect between the rubber and the metal plate 1 and ensure a firm bonding.

[0052] Of course, burrs may also be provided on the upper and lower surfaces of the metal plate 1 , which can also enhance the bonding effect between the rubber and the metal plate 1 .

[0053] Example 2

[0054] The utility model provides a processing mold for processing the aforementioned railway track wedge pad, and the processing mold includes a first clamping mold component 100 and a second clamping mold component 200 matched with each other up and down; the first clamping mold component 100 has an upper mold cavity 110, and the cavity wall of the upper mold cavity 110 is provided with a glue injection hole 121 connected with the upper mold cavity 110, a limiting bolt 140 used to stop on a metal plate 1 to limit the installation of the metal plate 1, and a first limiting member used to limit the reinforcing layer 4 located between the top wall of the upper mold cavity 110 and the metal plate 1; the second clamping mold component 200 has a lower mold cavity 210 opposite to the upper mold cavity 110, and a second limiting member used to limit the reinforcing layer 4 located between the bottom wall of the lower mold cavity 210 and the metal plate 1 is provided in the lower mold cavity 210.

[0055] The first clamping assembly 100 includes an upper mold 120, and a first positioning block 130 movably installed in the accommodating cavity of the upper mold 120, and the upper mold cavity 110 is defined by the bottom wall of the first positioning block 130 and the side wall of the upper mold 120. The first positioning block 130 is moved downward to compact the upper layer 2 above the metal plate 1. The limiting bolt 140 is penetrated on the side wall of the upper mold 120, and the glue injection hole 121 is opened on the side wall of the upper mold 120 and communicated with the upper mold cavity 110.

[0056] The second mold assembly 200 includes a lower mold 220 and a second positioning block 230 movably installed in the accommodating cavity of the lower mold 220, and the lower mold cavity 210 is defined by the top wall of the second positioning block 230 and the side wall of the lower mold 220. The second positioning block 230 is moved upward to compact the lower layer 3 below the metal plate 1.

[0057] The first limiting member is a positioning groove formed on the side wall of the upper mold 120 , and the positioning groove can limit the reinforcing layer 4 extending therein.

[0058] The top edge of the lower mold 220 extends toward the outer diameter to form a boss 221 . The second limiting member is a positioning step 222 formed on the boss 221 . The positioning step 222 can support and limit the reinforcing layer 4 placed thereon.

[0059] The lower end surface of the upper mold 120 can extend into the lower mold cavity 210 and stop and position on the positioning step 222 .

[0060] The lower mold cavity 210 includes a first cavity segment and a second cavity segment connected from top to bottom. The cross-sectional area of ​​the first cavity segment is greater than the cross-sectional area of ​​the second cavity segment. The first cavity segment and the second cavity segment are coaxially connected to form a positioning step 222.

[0061] The bottom wall of the first positioning block 130 is arranged to be inclined to the horizontal plane, and the inclination angle is equal to the wedge angle of the wedge-shaped pad; the top wall of the second positioning block 230 is arranged to be parallel to the horizontal plane.

[0062] When the metal plate 1 is installed in the upper mold cavity 110 by the stopper, the upper surface of the metal plate 1 is arranged parallel to and spaced from the bottom wall of the first positioning block 130, and the lower surface of the metal plate 1 is higher than the bottom opening of the upper mold cavity 110, so that the metal plate 1 is completely located in the upper mold cavity 110. There is a gap between the peripheral side wall of the metal plate 1 and the peripheral wall of the upper mold cavity 110, which can ensure that the upper mold cavity 110 is connected to the lower mold cavity 210 after the metal plate 1 is installed, so that the fluid rubber can flow from the upper mold cavity 110 into the lower mold cavity 210.

[0063] The first mold clamping assembly 100 further includes a first driving assembly 150 , which is connected to the first positioning block 130 and is used to drive the first positioning block 130 to move up and down in the accommodating cavity of the upper mold 120 .

[0064] The first driving assembly 150 includes a lead screw 151, a ball 152 and a hand wheel 153, wherein the lead screw 151 is disposed on the top wall of the upper mold 120, a hand wheel 153 is fixedly mounted on one end of the lead screw, and the other end penetrates the top wall of the upper mold 120, and the ball 152 is mounted on the lead screw 151 and fixedly mounted on the first positioning block 130. The hand wheel 153 drives the lead screw 151 to rotate, and the rotation of the lead screw 151 can drive the ball 152 thereon to move along the axial direction of the lead screw 151, thereby driving the first positioning block 130 to move up and down.

[0065] The second mold clamping assembly 200 further includes a second driving assembly 240, which is connected to the second positioning block 230 and is used to drive the second positioning block 230 to move up and down in the accommodating cavity of the lower mold 220. The second driving assembly 240 is installed on the lower mold 220, and its structure is the same as that of the first driving assembly 150, so the specific structure of the second driving assembly 240 is not further described.

[0066] Optionally, the processing mold further includes a mold opening and closing driving mechanism 300 connected between the upper mold 120 and the lower mold 220, and the mold opening and closing driving mechanism 300 includes a driving cylinder 310 and a telescopic rod 320. The driving cylinder 310 is fixedly mounted on the upper mold 120; one end of the telescopic rod 320 is connected to the driving cylinder 310, and the other end is fixedly connected to the lower mold 220. The driving cylinder 310 drives the telescopic rod 320 to move telescopically to drive the upper mold 120 and the lower mold 220 to move closer to or away from each other, thereby realizing mold opening and closing. The mold opening and closing driving mechanism 300 is set in two groups, and the two groups of mold opening and closing driving mechanisms 300 are respectively arranged on opposite sides of the upper mold 120 and the lower mold 220.

[0067] The working principle of the processing mold in this embodiment is as follows:

[0068] Place a reinforcing rib in the upper mold cavity 110 in an inclined manner, and make the reinforcing rib parallel to the bottom wall of the first positioning block 130, and use the first limiting member to limit the installation of the reinforcing rib; place the metal plate 1 in the upper mold cavity 110, and arrange the bottom wall of the first positioning block 130, the reinforcing rib, and the metal plate 1 in sequence, and screw the limiting bolt 140 so that one end of the limiting bolt 140 stops against the side wall of the metal plate 1 to fix the metal plate 1; place the reinforcing rib horizontally on the positioning step 222 of the lower mold 220, and drive the oil The cylinder 310 drives the telescopic rod 320 to telescope to drive the upper mold 120 and the lower mold 220 to approach each other until the lower end surface of the upper mold 120 stops on the positioning step 222; the fluid rubber is injected into the upper mold cavity 110 from the injection hole 121 until the fluid rubber fills the entire upper mold cavity 110 and the lower mold cavity 210; the first drive assembly 150 and the second drive assembly 240 are operated to make the first positioning block 130 and the second positioning block 230 approach each other to compact the upper part 2 and the lower part 3.

[0069] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A railway track wedge-shaped pad, characterized in that: The invention comprises a wedge-shaped rubber pad and a metal plate embedded in the rubber pad, wherein the metal plate is wedge-shaped and has the same slope as the rubber pad, and the rubber pad comprises an upper layer formed above the metal plate and a lower layer formed below the metal plate; Reinforcement layers are respectively arranged in the upper layer part and the lower layer part.

2. The railway track wedge-shaped pad according to claim 1, characterized in that: The reinforcement layer includes transverse ribs extending in the transverse direction and longitudinal ribs extending in the longitudinal direction. A plurality of transverse ribs and a plurality of longitudinal ribs are woven to form a reinforcement layer with a mesh structure.

3. The railway track wedge-shaped pad according to claim 1 or 2, characterized in that: The reinforcement layer is made of metal material.

4. The railway track wedge-shaped pad according to claim 1, characterized in that: The upper and lower surfaces of the metal plate are respectively formed with anti-skid patterns in a mesh structure, and the anti-skid patterns are grooves opened on the metal plate.

5. A processing mold for processing the railway track wedge-shaped pad according to any one of claims 1 to 4, characterized in that: It includes a first mold clamping assembly and a second mold clamping assembly matched with each other up and down; The first mold clamping assembly comprises an upper mold cavity, a cavity wall of the upper mold cavity is provided with a glue injection hole connected to the upper mold cavity, a limiting bolt for abutting against a metal plate to limit the installation of the metal plate, and a first limiting member for limiting the reinforcing layer between the top wall of the upper mold cavity and the metal plate; The second mold clamping assembly comprises a lower mold cavity opposite to the upper mold cavity, and a second limiting member for limiting the reinforcing layer between the bottom wall of the lower mold cavity and the metal plate is arranged in the lower mold cavity.

6. The processing mold for the railway track wedge-shaped pad according to claim 5, characterized in that: The first mold clamping assembly includes an upper mold, and a first positioning block movably mounted in a receiving cavity of the upper mold, wherein the upper mold cavity is defined by a bottom wall of the first positioning block and a side wall of the upper mold; The second mold clamping assembly includes a lower mold and a second positioning block movably installed in the accommodating cavity of the lower mold, and the lower mold cavity is defined by the top wall of the second positioning block and the side wall of the lower mold.

7. The processing mold for the railway track wedge-shaped pad according to claim 6, characterized in that: The top edge of the lower mold extends toward the outer diameter to form a boss, and the second limiting member is a positioning step formed on the boss, and the positioning step can support and limit the reinforcing layer placed thereon.

8. The processing mold for the railway track wedge-shaped pad according to claim 7, characterized in that: The lower end surface of the upper mold can extend into the lower mold cavity and stop and position on the positioning step.

9. The processing mold for the railway track wedge-shaped pad according to claim 7 or 8, characterized in that: The lower molding cavity includes a first cavity segment and a second cavity segment which are connected from top to bottom. The cross-sectional area of ​​the first cavity segment is larger than the cross-sectional area of ​​the second cavity segment. The first cavity segment and the second cavity segment are coaxially connected to form the positioning step.

10. The processing mold for the railway track wedge-shaped pad according to claim 6, characterized in that: The bottom wall of the first positioning block is inclined to the horizontal plane, and the inclination angle is equal to the wedge angle of the wedge-shaped pad; The top wall of the second positioning block is arranged parallel to the horizontal plane.

11. The processing mold for the railway track wedge-shaped pad according to claim 6, characterized in that: The first mold clamping assembly also includes a first driving assembly, which is connected to the first positioning block and is used to drive the first positioning block to move up and down in the accommodating cavity of the upper mold.

12. The processing mold for the railway track wedge-shaped pad according to claim 6, characterized in that: The mold opening and closing driving mechanism is also included, and is connected between the upper mold and the lower mold. The mold opening and closing driving mechanism includes: The driving cylinder is fixedly installed on the upper die; The telescopic rod has one end connected to the driving cylinder and the other end fixedly connected to the lower mold. The driving cylinder drives the telescopic rod to move telescopically to drive the upper mold and the lower mold to move closer to or away from each other, thereby realizing opening and closing of the mold.

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