Brake structure of unpowered rail car

Abstract

The utility model discloses a brake structure of an unpowered rail car, and relates to the technical field of rail cars. The brake device comprises a mounting plate, baffles, a brake assembly and a lower pressing plate, a movable opening is formed in one side in the mounting plate in a penetrating mode, the baffles are symmetrically fixed to the position, behind the movable opening, of the rear side of the mounting plate, and the brake assembly is fixed to the upper portion between the two baffles and comprises a lifting plate, a return spring and a brake pad. Return springs are symmetrically fixed to the top of the lifting plate along the center line parallel to the long edge, a brake block is fixed to the bottom of the lifting plate, and a lower pressing plate is fixed to the edge, close to the mounting plate, of the top of the lifting plate. By arranging the mounting plate, the baffle, the brake assembly and the lower pressing plate, the problems that the stability of the idler wheels on the unpowered rail car is not high enough after parking, and the transportation resistance is increased due to the fact that the brake positions of the idler wheels are rubbed by deformation of the plate springs when the plate springs are connected with the brake structure are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to rail vehicles, and particularly relates to a brake structure of an unpowered rail vehicle. Background Art

[0002] Unpowered vehicles need to be towed by tractors. Unpowered railcars are a type of material transfer equipment that runs on rails. They do not have a drive system and require external auxiliary devices for traction transmission. Unpowered railcars have a simple and reliable structure, are economical in price, and are easy to maintain. They are suitable for various harsh working conditions, especially environments that are not suitable for electrical equipment. Such vehicles can be moved by operators pushing them by hand, towing them with a hoist, pushing or towing them with a forklift. Unpowered railcars are widely used in factories, ports, ranches and other places to transport heavy objects and materials. Unpowered railcars themselves have no drive and require manpower or traction equipment to provide power. Unpowered rail flatcars do not require electrical equipment, which greatly saves costs. During the transportation process, they push the goods, but it still has the following disadvantages in actual use:

[0003] During the movement of the unpowered rail car, the goods are transported after it stops at a suitable position directly by manual or driving equipment. During the process of cargo transportation, the rail car is prone to shaking, affecting the stability of cargo transportation and the safety of use. When resuming the movement of the rail car, the rotation of the rollers needs to be restored. The brake structure connected by the spring is prone to large plastic deformation during long-term use, causing friction in the brake position, increasing resistance in transportation, and reducing transportation efficiency. Utility Model Content

[0004] The utility model aims to provide a brake structure for an unpowered rail vehicle. By arranging a mounting plate, a baffle, a brake assembly and a lower pressure plate, the utility model solves the problem that the stability of the rollers on the unpowered rail vehicle is not high enough after parking, and the use of a leaf spring to connect the brake structure is prone to increase transportation resistance due to the deformation of the leaf spring and friction of the roller brake position.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a brake structure for an unpowered rail vehicle, comprising a mounting plate, a baffle plate, a brake assembly and a lower pressure plate, wherein a movable opening is formed through one side of the mounting plate, a baffle plate is symmetrically fixed to the rear side of the mounting plate behind the movable opening, a brake assembly is fixed to the upper part between the two baffle plates, the brake assembly comprises a lifting plate, a return spring and a brake shoe, a return spring is symmetrically fixed to the top of the lifting plate along a center line parallel to the long side, a brake block is fixed to the bottom of the lifting plate, and a lower pressure plate is fixed to the top of the lifting plate near the edge of the mounting plate. When working, the baffle plate, the brake assembly and the lower pressure plate are mounted together through the mounting plate, a roller is rotatably connected thereto through the baffle plate, and a braking effect is provided when the brake block included in the brake assembly abuts against the roller through the installation action of the roller, and the lifting plate is driven to descend when the lower pressure plate is pressed down.

[0007] Furthermore, the lower pressure plate is movably connected in the movable opening, an insert block is fixed on the mounting plate above the front side of the movable opening, an L-shaped limit block is fixed at a corner of the top of the insert block, the lower pressure plate is movably connected to the rotating rod through the insert block, and the position of the rotating plate is limited by the L-shaped limit block.

[0008] Furthermore, a roller is rotatably connected to the lower part between the two baffles, and the roller is arranged below the brake block. The baffle connects the roller to the mounting plate, and the roller provides an installation function for the unpowered rail vehicle on the running track.

[0009] Furthermore, the brake assembly also includes a connecting plate and a telescopic rod. The top ends of the two return springs are commonly fixed with a connecting plate. A telescopic rod is fixed to the edge of the bottom of the connecting plate away from the mounting plate. The telescopic end of the telescopic rod is fixed to the lifting plate. The brake assembly connects the return spring and the top end of the telescopic rod together through the connecting plate, and prevents the position from changing when the position between the lifting plate and the connecting plate changes through the telescopic rod.

[0010] Furthermore, the brake assembly also includes a connecting column and a fixing plate. The four corners of the top of the connecting plate are all fixed with connecting columns. The tops of all the connecting columns are commonly fixed with a fixing plate. The fixing plate is fixed to the rear side of the mounting plate. The brake assembly is connected to the mounting plate through the connecting column and the fixing plate.

[0011] Furthermore, a rotating rod is rotatably connected to the top of the lower pressure plate in front of the mounting plate, and the rotating rod is inserted into the insertion block, and a rotating plate is fixed to the top of the rotating rod, and the rotating plate abuts against the corner in the L-shaped limit block. After the lower pressure plate is pressed down, the rotating rod and the rotating plate are driven to descend, and after the rotating plate descends into the L-shaped limit block, the rotating plate is rotated again to rotate the rotating plate into the L-shaped limit block, thereby limiting the position of the lifting plate, so that the brake block at the bottom of the lifting plate drops to abut the roller, and the roller brakes.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model solves the problem that the roller on the non-powered rail vehicle is not stable enough after parking by arranging a mounting plate, a baffle and a brake assembly. The mounting bolts are inserted into the mounting plate and then screwed into the non-powered rail vehicle. After the mounting plate is installed, the roller rotates during operation. During the rotation of the roller, the lower pressure plate is pressed down, and the lifting plate is driven to descend, and the brake block is pressed tightly onto the roller, so that a braking effect is generated on the roller, so that the non-powered rail vehicle is braked and positioned, and the roller on the non-powered rail vehicle has higher stability after parking.

[0014] 2. The utility model solves the problem that the unpowered rail vehicle adopts a leaf spring to connect the brake structure, which is easy to increase the transportation resistance due to the deformation of the leaf spring and the friction of the roller brake position by the leaf spring, by arranging the mounting plate, the baffle plate, the brake assembly and the lower pressure plate. When the roller needs to resume rolling, the rotating plate is rotated until the rotating plate leaves the L-shaped limit block, and the lifting plate is elastically reset by the return spring, the brake block leaves the roller, and the roller resumes rolling. The unpowered rail vehicle directly uses the spring for reset, which prevents the brake pad from remaining in place after braking due to the deformation of the leaf spring due to the reset using the leaf spring, thereby increasing the smoothness of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a stereoscopic diagram of the assembly structure of a brake structure of an unpowered rail vehicle;

[0017] Figure 2 It is a three-dimensional diagram of the combined structure of the mounting plate, the brake assembly and the lower pressure plate;

[0018] Figure 3 It is a three-dimensional diagram of the baffle structure;

[0019] Figure 4 It is a three-dimensional diagram of the baffle structure;

[0020] Figure 5 It is a three-dimensional diagram of the brake assembly structure;

[0021] Figure 6 It is a three-dimensional diagram of the lower pressure plate structure.

[0022] Reference numerals:

[0023] 1. Mounting plate; 101. Movable opening; 102. Insert block; 103. L-shaped limit block; 2. Baffle plate; 201. Roller; 3. Brake assembly; 301. Lifting plate; 302. Return spring; 303. Connecting plate; 304. Connecting column; 305. Fixed plate; 306. Telescopic rod; 307. Brake block; 4. Lower pressure plate; 401. Rotating rod; 402. Rotating plate. DETAILED DESCRIPTION

[0024] 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 of 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. Specific embodiment 1

[0026] See also Figure 1-5 The utility model is a brake structure for an unpowered rail vehicle, comprising a mounting plate 1, a baffle plate 2, a brake assembly 3 and a lower pressure plate 4. A movable opening 101 is provided on one side of the mounting plate 1. The mounting plate 1 mounts the baffle plate 2, the brake assembly 3 and the lower pressure plate 4 on the unpowered rail vehicle. The lower pressure plate 4 is movably connected to the mounting plate 1 through the movable opening 101. A baffle plate 2 is symmetrically fixed to the rear side of the mounting plate 1 behind the movable opening 101. A roller 201 is rotatably connected thereto through the baffle plate 2. A brake assembly 3 is fixed to the upper part between the two baffle plates 2. The roller 201 is braked through the brake assembly 3. Operation, the brake assembly 3 includes a lifting plate 301, a return spring 302 and a brake shoe. The top of the lifting plate 301 is symmetrically fixed with a return spring 302 along a center line parallel to the long side, and the bottom of the lifting plate 301 is fixed with a brake block 307. When the lifting plate 301 moves downward, the return spring 302 is stretched, and the bottom of the brake block 307 contacts the roller 201 and is pressed against the roller 201, thereby braking the roller 201. A lower pressure plate 4 is fixed at the top of the lifting plate 301 near the edge of the mounting plate 1, and the lifting plate 301 is driven downward by the lower pressure plate 4 when it is pressed downward.

[0027] Specifically, the lower pressure plate 4 is movably connected in the movable opening 101, an insert block 102 is fixed on the mounting plate 1 above the front side of the movable opening 101, an L-shaped limit block 103 is fixed at a corner on the top of the insert block 102, and the mounting plate 1 movably connects the rotating rod 401 therein through the insert block 102, and limits the position of the rotating plate 402 through the L-shaped limit block 103.

[0028] Furthermore, the lower part between the two baffles 2 is rotatably connected with a roller 201, which is arranged below the brake block 307. The baffles 2 provide support between the unpowered rail vehicle and a suitable track through the roller 201, and cooperate with the movement of the unpowered rail vehicle.

[0029] Furthermore, the brake assembly 3 also includes a connecting plate 303 and a telescopic rod 306. The top ends of the two return springs 302 are commonly fixed with the connecting plate 303. The bottom of the connecting plate 303 is fixed with a telescopic rod 306 at an edge away from the mounting plate 1. The telescopic end of the telescopic rod 306 is fixed to the lifting plate 301. The brake assembly 3 connects the telescopic rod 306 and the return spring 302 through the connecting plate 303, so that when working, the telescopic rod 306 is extended and retracted to drive the lifting plate 301 to rise and fall vertically.

[0030] Furthermore, the brake assembly 3 also includes a connecting column 304 and a fixing plate 305. The connecting columns 304 are fixed at the four corners of the top of the connecting plate 303. The tops of all the connecting columns 304 are commonly fixed with a fixing plate 305. The fixing plate 305 is fixed to the rear side of the mounting plate 1. The brake assembly 3 connects the fixing plate 305 and the connecting plate 303 together through the connecting column 304, and is fixed to the mounting plate 1 through the fixing plate 305, so that the brake assembly 3 is connected to the mounting plate 1.

[0031] The operation process of this embodiment is as follows: when working, first insert the mounting bolts into the mounting plate 1, and then screw it into the non-powered rail vehicle to install the mounting plate 1. During operation, the roller 201 rotates, and during the rotation of the roller 201, the lower pressure plate 4 is pressed down, and the lower pressure plate 4 is pressed down to drive the lifting plate 301 to descend, and drive the brake block 307 to be pressed tightly onto the roller 201, so that a braking effect is generated on the roller 201, so that the non-powered rail vehicle is braked and positioned. Specific embodiment 2

[0033] See also Figure 1-6 On the basis of the specific embodiment 1, the top of the lower pressure plate 4 in front of the mounting plate 1 is rotatably connected with a rotating rod 401, the rotating rod 401 is inserted into the plug block 102, and a rotating plate 402 is fixed to the top of the rotating rod 401, and the rotating plate 402 abuts against the corner in the L-shaped limit block 103. The mounting plate 1 is movably connected to the plug block 102 through the rotating rod 401, and after the rotating plate 402 is rotated into the L-shaped limit block 103, the rotating plate 402 limits the position of the lifting plate 301.

[0034] The operation process of this embodiment is as follows: when braking is needed, the lower pressure plate 4 is pressed down until the rotating plate 402 moves to the lower part of the L-shaped limit block 103, and then the rotating plate 402 is rotated to rotate the rotating plate 402 into the L-shaped limit block 103, and the lifting plate 301 is lowered and the position is restricted so that the bottom of the brake block 307 and the roller 201 are pressed tightly. When the roller 201 needs to resume rolling, the rotating plate 402 is rotated until the rotating plate 402 leaves the L-shaped limit block 103, and the lifting plate 301 is elastically reset by the return spring 302, and the brake block 307 leaves the roller 201, and the roller 201 resumes rolling.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A brake structure for an unpowered rail vehicle, comprising a mounting plate (1), a baffle (2), a brake assembly (3) and a lower pressure plate (4), characterized in that: A movable opening (101) is formed through one side of the mounting plate (1), a baffle (2) is symmetrically fixed to the rear side of the mounting plate (1) behind the movable opening (101), a brake assembly (3) is fixed to the upper portion between the two baffles (2), the brake assembly (3) comprising a lifting plate (301), a return spring (302) and a brake shoe, a return spring (302) is symmetrically fixed to the top of the lifting plate (301) along a center line parallel to the long side, a brake shoe (307) is fixed to the bottom of the lifting plate (301), and a lower pressure plate (4) is fixed to the top of the lifting plate (301) near the edge of the mounting plate (1).

2. The brake structure of an unpowered rail vehicle according to claim 1, characterized in that: The lower pressing plate (4) is movably connected in the movable opening (101), an insert block (102) is fixed on the mounting plate (1) above the front side of the movable opening (101), and an L-shaped limit block (103) is fixed at a corner of the top of the insert block (102).

3. The brake structure of a non-powered rail vehicle according to claim 1, characterized in that: A roller (201) is rotatably connected to the lower portion between the two baffles (2), and the roller (201) is arranged below the brake block (307).

4. The brake structure of an unpowered rail vehicle according to claim 1, characterized in that: The brake assembly (3) further comprises a connecting plate (303) and a telescopic rod (306); the top ends of the two return springs (302) are commonly fixed with the connecting plate (303); the bottom of the connecting plate (303) is fixed with a telescopic rod (306) at an edge away from the mounting plate (1); and the telescopic end of the telescopic rod (306) is fixed to the lifting plate (301).

5. The brake structure of a non-powered rail vehicle according to claim 4, characterized in that: The brake assembly (3) further comprises a connecting column (304) and a fixing plate (305), wherein the four corners of the top of the connecting plate (303) are all fixed with a connecting column (304), and the tops of all the connecting columns (304) are commonly fixed with a fixing plate (305), and the fixing plate (305) is fixed to the rear side of the mounting plate (1).

6. The brake structure of a non-powered rail vehicle according to claim 1, characterized in that: The top of the lower pressing plate (4) in front of the mounting plate (1) is rotatably connected to a rotating rod (401), the rotating rod (401) is inserted into the insert block (102), a rotating plate (402) is fixed to the top of the rotating rod (401), and the rotating plate (402) abuts against a corner in the L-shaped limiting block (103).

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