Semi-self-discharging type rail four-wheel flat car with brake

Abstract

A semi-self-unloading rail four-wheel flatcar with a brake relates to the technical field of rail transport tools and mainly structurally comprises a fixed underframe and rail wheels, and brake components are arranged at the rail wheels; a rotating shaft is arranged at the bottom of the front part of the fixed underframe, penetrates through an upper end hole of a brake push rod bracket in the brake assembly and is fixedly connected with the brake push rod bracket; two brake fixing blocks are further fixedly installed at the bottom of the front portion of the fixing bottom frame, a brake limiting block is arranged between the two brake fixing blocks, the rotating shaft penetrates through the brake fixing blocks and through holes of the brake limiting block, and the rotating shaft is fixedly connected with the brake limiting block; one end of the brake rod is hinged to the top of one brake fixing block, and clamping grooves are formed in the tops of the other brake fixing block and the brake limiting block; the middle of the rotating shaft is fixedly connected with a brake relieving rod. The ramp parking device has a braking function, can be used for ramp parking, and is simple in structure, convenient to use, safe and reliable.

Description

Technical Field

[0001] This utility model relates to the field of rail transport vehicle technology, and in particular to a semi-self-unloading four-wheeled rail flatcar with brakes. Background Technology

[0002] In the past, ballast transportation during railway maintenance and construction relied on conventional four-wheeled flatbed wagons. However, on slopes, these flatbed wagons, lacking braking systems, were prone to slippage and accidents. Slippage could result in personal injury to workers, damage to equipment and track, and significant time wasted in resuming the transport of materials. Given the time constraints of railway maintenance and construction, which necessitate completion within designated maintenance windows, the need for flatbed wagons that are simple in structure, highly efficient, easy to use, capable of braking on slopes, and safe and reliable has become an urgent requirement in current railway maintenance and construction. Utility Model Content

[0003] The purpose of this utility model is to provide a rail flatbed transport vehicle that can brake on sloping road sections, is safe and reliable, has a simple structure, is efficient in operation, and is easy to use, effectively overcoming the shortcomings of the conventional rail flatbed transport method used in the past.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a semi-self-unloading rail four-wheel flatcar with brakes, including a fixed base frame and rail wheels installed at the bottom of the fixed base frame, wherein a set of brake components is respectively provided at the two rail wheels at the front of the fixed base frame;

[0005] The specific structure of each brake assembly is as follows: the brake shoe is connected to the rear end of the horizontally arranged brake push rod via a first pin; the front end of the brake push rod passes through a through hole in the spring baffle and is connected to the lower end hole of the brake push rod bracket via a second pin; a nut is installed at the front end of the brake push rod to abut against the second pin; a limiting component is also installed at the rear of the brake push rod; a spring is sleeved on the brake push rod and limited between the limiting component and the spring baffle; the spring baffle is fixedly installed at the bottom of the fixed base frame.

[0006] Two support seats are also fixedly installed at the bottom of the front part of the fixed base frame. A rotating shaft perpendicular to the brake push rod is set on the horizontal plane. The rotating shaft passes through the through holes of the two support seats and is rotatably connected to the support seats.

[0007] The rotating shaft also passes through the upper end hole of the brake push rod bracket and is fixedly connected to the brake push rod bracket;

[0008] Two brake fixing blocks are also fixedly installed at the bottom of the front part of the fixed base. A brake limit block is set between the two brake fixing blocks. The rotating shaft passes through the through holes of the brake fixing blocks and the brake limit block, and the rotating shaft is fixedly connected to the brake limit block.

[0009] One end of the brake lever is hinged to the top of one of the brake fixing blocks, and the other brake fixing block and the brake limiting block are both provided with slots on their tops;

[0010] A brake release lever is also fixedly connected to the middle of the pivot.

[0011] Furthermore, the limiting component is an adjusting nut. The rear of the brake push rod has threads, and the adjusting nut is installed at the rear of the brake push rod to abut against the spring. In this way, the position of the adjusting nut can be adjusted later according to the actual situation to adjust the extension and contraction of the spring and thus adjust the elastic force.

[0012] Furthermore, each of the brake push rod brackets includes two parallel bracket blocks.

[0013] Furthermore, each of the support bases includes two parallel support blocks.

[0014] Furthermore, the two brake push rod brackets are respectively set between the two support blocks of the corresponding support base.

[0015] Furthermore, a set of brake assemblies is also provided at each of the two track wheels at the rear of the fixed base; and two support seats are also fixedly installed at the bottom of the rear of the fixed base. On the horizontal plane, there is also a rotating shaft of a brake push rod perpendicular to the rear brake assembly. The other rotating shaft passes through the through holes of the two rear support seats and is rotatably connected to the rear support seats; the other rotating shaft also passes through the upper end hole of the brake push rod bracket of the rear brake assembly and is fixedly connected to the brake push rod bracket.

[0016] It is also equipped with two synchronous linkage brackets at the front and rear. Two rotating shafts pass through the upper holes of the two synchronous linkage brackets and are fixedly connected to the synchronous linkage brackets. The lower holes of the synchronous linkage brackets are hinged to the drive linkage through pins and cotter pins.

[0017] In this way, the two rotating shafts at the front and rear can rotate synchronously through the drive linkage and the synchronous linkage bracket, and the two track wheels at the rear can brake or release the brake at the same time as the two track wheels at the front.

[0018] Furthermore, the synchronous linkage support includes two parallel support blocks.

[0019] Furthermore, a connecting rod is hinged to the front of the fixed base, and a tilting frame with a railing is hinged to the fixed base. Auxiliary wheels are installed at the bottom of the tilting frame.

[0020] The beneficial effects of this utility model are as follows:

[0021] The system utilizes a rotating shaft to drive a brake push rod, which in turn causes the brake shoes to disengage from or engage with the tread of the track wheel, thereby releasing the brake or applying the brake. It is equipped with a brake fixing block, a brake limit block, and a brake lever to maintain the released or applied brake state. It can be used for parking on slopes, has a simple structure, is easy to use, and is safe and reliable. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0023] Figure 2 This is a three-dimensional structural diagram of an embodiment of the present invention viewed from below.

[0024] Figure 3 for Figure 2 Enlarged view of section A in the middle;

[0025] Figure 4 This is a top-view perspective structural diagram of an embodiment of the present invention;

[0026] Figure 5 for Figure 4 Enlarged view of section B;

[0027] Figure 6 This is a three-dimensional structural diagram of the brake assembly and related parts of the rotating shaft according to an embodiment of the present utility model;

[0028] Figure 7 This is a side view of an embodiment of the present utility model.

[0029] To more clearly illustrate the structure, Figures 2-7 The flipping frame and connecting rod of this embodiment are omitted. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings.

[0031] Figures 1-7 This invention illustrates a specific embodiment of a semi-self-unloading rail four-wheel flatcar with brakes, comprising a fixed base frame 1 and four rail wheels 2 installed at the bottom of the fixed base frame 1, wherein there are two rail wheels 2 at the front and two at the rear, and each rail wheel 2 is provided with a set of brake components.

[0032] In this embodiment, each track wheel 2 is mounted on a pair of wheel support plates 22 by means of a pin, and the wheel support plates 22 are fixedly mounted on the bottom of the fixed base frame 1;

[0033] The specific structure of each brake assembly is as follows: the brake shoe 3 is connected to the rear end of the horizontally arranged brake push rod 5 through the first pin 4; the front end of the brake push rod 5 passes through the through hole on the spring baffle 9 and is connected to the lower end hole of the brake push rod bracket 7 through the second pin 6; a nut 8 is installed on the front end of the brake push rod 5 to abut against the second pin 6; a limiting member 10 is also installed at the rear of the brake push rod 5; a spring 11 is sleeved on the brake push rod 5 and limited between the limiting member 10 and the spring baffle 9; the spring baffle 9 is fixedly installed at the bottom of the fixed base frame 1.

[0034] In this embodiment, the limiting member 10 is an adjusting nut, that is, the rear part of the brake push rod 5 has threads, and the adjusting nut is installed on the rear part of the brake push rod 5 to abut against the spring 11.

[0035] The bottom of the fixed base frame 1 is also fixedly installed with four support seats 12, two at the front and two at the rear. Two rotating shafts 13 are arranged on the horizontal plane, perpendicular to the brake push rod 5. The rotating shafts 13 at the front pass through the through holes of the two front support seats 12 and are rotatably connected to the front support seats 12. The rotating shafts 13 at the rear pass through the through holes of the two rear support seats 12 and are rotatably connected to the rear support seats 12. Each support seat 12 includes two identical support blocks arranged in parallel, and each support block has a through hole.

[0036] The front rotating shaft 13 also passes through the upper holes of the two front brake push rod brackets 7 and is fixedly connected to the front brake push rod brackets 7 by welding; the rear rotating shaft 13 also passes through the upper holes of the two rear brake push rod brackets 7 and is fixedly connected to the rear brake push rod brackets 7 by welding.

[0037] In this embodiment, each brake push rod bracket 7 includes two identical bracket blocks arranged in parallel, and each bracket block has an upper end hole and a lower end hole; the four brake push rod brackets 7 are respectively arranged between the two support blocks of the corresponding support base 12.

[0038] Two brake fixing blocks 14 are also fixedly installed at the bottom of the front part of the fixed base frame 1. A brake limiting block 15 is provided between the two brake fixing blocks 14. The front rotating shaft 13 passes through the through holes of the brake fixing blocks 14 and the brake limiting block 15, and the front rotating shaft 13 and the brake limiting block 15 are fixedly connected by welding.

[0039] One end of the brake lever 16 is connected to the top of one of the brake fixing blocks 14 by a pin hinge, and the other brake fixing block 14 and the brake limiting block 15 are both provided with slots on their tops.

[0040] A brake release lever 17 is also fixedly connected to the middle of the front pivot 13; the user selects a suitable sleeve and puts it on the brake release lever 17 to extend it for use as a push rod.

[0041] It is also provided with two synchronous linkage brackets 18 at the front and rear. Two rotating shafts 13 pass through the upper holes of the two synchronous linkage brackets 18 respectively and are fixedly connected to the synchronous linkage brackets 18 by welding. The lower hole of the synchronous linkage bracket 18 is hinged to the drive linkage 19 through a pin and a cotter pin. In this embodiment, each synchronous linkage bracket 18 includes two identical bracket blocks arranged in parallel. Each bracket block has an upper hole and a lower hole.

[0042] In this embodiment, a connecting rod 23 is hinged to the front of the fixed base frame 1 via a pin. A tilting frame 20 with a railing is also hinged to the fixed base frame 1, and two auxiliary wheels 21 are installed at the bottom of the tilting frame 20. As a tilting frame used for loading goods on a semi-dump truck, its connection with the fixed base frame is conventional prior art and will not be elaborated here. The connecting rod 23 can be connected to different models of excavators. After the ballast is packed, it is installed inside the tilting frame 20, and the auxiliary wheels 21 are used to support the rear of the tilting frame 20 when the ballast is being loaded.

[0043] by Figure 7 For example, the working principle of this utility model for braking or releasing the brake is as follows:

[0044] When it is necessary to "release the brakes", such as Figure 7 As shown by the arrow in the image, rotating the brake release lever 17 on the front rotating shaft 13 clockwise causes the front rotating shaft 13 to rotate clockwise, which in turn drives the rear rotating shaft 13 to rotate synchronously via the synchronous connecting rod bracket 18 and the drive connecting rod 19.

[0045] The front and rear rotating shafts 13 respectively drive the two front and rear brake push rod brackets 7 to rotate clockwise. The lower end of the brake push rod bracket 7 drives the brake push rod 5 to move to the left. The brake push rod 5 drives the brake shoe 3 to move to the left and disengage from the tread of the track wheel 2, thereby realizing the simultaneous "brake release" of the four track wheels 2. Since the spring baffle 9 is fixedly installed at the bottom of the fixed base frame 1, the spring 11 sleeved on the brake push rod 5 is compressed at this time.

[0046] At the same time, the rotation of the front shaft 13 will drive the brake limit block 15 to rotate. Rotate the brake release rod 17 to a certain angle so that the slot on the top of the brake limit block 15 is aligned with the slot on the top of the brake fixing block 14. Then, manually lower the brake rod 16 into the slot, so that the front shaft 13 is locked and will no longer rotate. The spring 11 is also in a compressed state, so that the brake shoe 3 remains in the "released brake" state, and the four-wheel flatcar can run on the track.

[0047] When "braking" is required, the brake lever 16 is struck upwards to disengage it from the slot, the spring 11 extends and returns to its original position, driving the brake push rod 5 to move to the right, causing the brake shoe 3 to grip the tread of the track wheel 2 to the right, thus achieving "braking".

[0048] As the brake push rod 5 moves to the right, it drives the brake push rod bracket 7 to rotate counterclockwise. The rotating shaft 13 rotates counterclockwise under the drive of the brake push rod bracket 7, and the brake limit block 15 also rotates counterclockwise. The slot on the top of the brake limit block 15 is misaligned with the slot on the top of the brake fixing block 14.

Claims

1. A railcar with brakes and semi-dump car with four wheels, characterized in that: Including fixed chassis (1) and install in fixed chassis (1) bottom track wheel (2), wherein fixed chassis (1) front two track wheels (2) are respectively provided with a set of brake assembly; The specific structure of each brake assembly is that the brake shoe (3) is connected with the rear end of the horizontally arranged brake push rod (5) through the first pin shaft (4), the front end of the brake push rod (5) passes through the through hole of the spring baffle (9) and is connected with the lower end hole of the brake push rod support (7) through the second pin shaft (6), the front end of the brake push rod (5) is provided with a nut (8) abutting against the second pin shaft (6); The brake push rod (5) is further provided with a limiting piece (10), and the spring (11) is sleeved on the brake push rod (5) and limited between the limiting piece (10) and the spring baffle (9); The spring baffle (9) is fixedly installed on the bottom of the fixed chassis (1); The bottom of the front of the fixed chassis (1) is further fixedly provided with two support seats (12), and a rotation shaft (13) perpendicular to the brake push rod (5) is arranged on the horizontal plane, and the rotation shaft (13) is rotatably connected to the support seat (12) through the through hole of the two support seats (12); The rotation shaft (13) further passes through the upper end hole of the brake push rod support (7) and is fixedly connected with the brake push rod support (7); The bottom of the front of the fixed chassis (1) is further fixedly provided with two brake fixing blocks (14), and a brake limiting block (15) is arranged between the two brake fixing blocks (14), the rotation shaft (13) passes through the through hole of the brake fixing block (14) and the brake limiting block (15), and the rotation shaft (13) is fixedly connected with the brake limiting block (15); One end of the brake lever (16) is hingedly connected to the top of one of the brake fixing blocks (14), and the other brake fixing block (14) and the brake limiting block (15) are both provided with a clamping groove on the top; The middle of the rotation shaft (13) is further fixedly connected with a brake relief lever (17).

2. The semi-dump rail four-wheel flat car with brake according to claim 1, characterized in that: The limiting piece (10) is an adjusting nut.

3. The semi-dump rail four-wheel flat car with brake according to claim 1, characterized in that: Each brake push rod support (7) comprises two support blocks arranged in parallel.

4. The semi-dump rail four-wheel flat car with brakes of claim 1, wherein: Each support seat (12) comprises two support blocks arranged in parallel.

5. A semi-dump rail four-wheel flat car with brakes as claimed in claim 4, characterized in that: The two brake push rod supports (7) are respectively arranged between the two support blocks of the corresponding support seat (12).

6. A semi-dump rail four-wheel flat car with brakes as claimed in claim 1, characterized in that: The rear of the fixed chassis (1) is also provided with a set of brake assemblies at the two track wheels (2), and the bottom of the rear of the fixed chassis (1) is also fixedly provided with two support seats (12), and another rotation shaft (13) perpendicular to the brake push rod (5) of the rear brake assembly is arranged on the horizontal plane, the other rotation shaft (13) passes through the through hole of the two rear support seats (12) and is rotatably connected to the rear support seat (12), and the other rotation shaft (13) further passes through the upper end hole of the brake push rod support (7) of the rear brake assembly and is fixedly connected with the brake push rod support (7); Two front and rear synchronous link supports (18) are further provided, the two rotation shafts (13) pass through the upper end holes of the two synchronous link supports (18) and are fixedly connected with the synchronous link supports (18), and the lower end holes of the synchronous link supports (18) are hingedly connected with the driving link (19) through a pin shaft and a split pin.

7. A semi-dump rail four-wheel flat car with brakes as claimed in claim 6, characterized in that: The synchronous connecting rod support (18) comprises two support blocks arranged in parallel.

8. A semi-dump rail four-wheel flat car with brakes as claimed in claim 1, characterized in that: The fixed chassis (1) is hingedly connected with a connecting rod (23) at the front part, and a turnover frame (20) with a fence is hingedly connected to the fixed chassis (1), and the turnover frame (20) is provided with auxiliary wheels (21) at the bottom.

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