Double-roller brake arm rail clamping device

Abstract

The utility model discloses a double-roller brake arm track clamping device which comprises double-roller brake arm assemblies, wedge-shaped block assemblies, springs, an upper bearing seat and a lower bearing seat, the double-roller brake arm assemblies are arranged in a bilateral symmetry mode and fixedly connected with the lower bearing seat through pin shafts, and the double-roller brake arm assemblies can rotate around the pin shafts and apply pressure to a track; the wedge-shaped block assembly is fixedly connected with the upper bearing seat; the spring is connected with the upper bearing seat and the lower bearing seat, and the spring applies acting force to the wedge-shaped block assembly connected to the upper bearing seat; the wedge-shaped block assembly drives the left and right support rollers, one part of force of the support rollers is transmitted to the brake arm through the left and right supports, and the other part of force is transmitted to the brake arm through the brake arm roller. The track clamping device has the advantages that the inclined surface of the wedge block is contacted with the rollers, the double-roller brake arm rotates, the track clamping is realized, the structure is simple, and the work is reliable.

Description

Technical Field

[0001] The utility model relates to a spring brake and a hydraulically released brake for fixing cranes and port equipment, and belongs to the technical field of track clamping, and specifically relates to a double roller brake arm track clamping device. Background Technology

[0002] The track clamp is a track clamp used to clamp the two sides of the crane track to prevent the equipment from moving on the track. When the track clamp is working normally, with the help of spring or disc spring force, the inclined surface of the wedge block contacts the brake arm cam, which opens one end of the brake arm and rotates the brake arm. A pair of brake arms are equipped with brake calipers at their other ends to achieve clamping cooperation with the opposite sides of the track.

[0003] The inclined surface of the wedge block cooperates with the brake arm cam to transmit force. The disadvantage is that it contacts at the same position for a long time, which is prone to fatigue and wear. The equipment needs to replace spare parts frequently, and the unreliability will increase under long-term working conditions. Contents of utility model

[0004] Purpose of the utility model: to provide a double roller brake arm track clamping device, which has a simple structure, reliable operation, and small dimensions, ensuring that the equipment using the device will not move during operation, achieving stable and reliable braking of the equipment, and solving the above-mentioned problems.

[0005] Technical solution: A double roller brake arm track clamping device, comprising: a double roller brake arm assembly (Z1), a wedge block assembly (Z3), a spring (Z2), an upper bearing seat (Z4), and a lower bearing seat (Z5);

[0006] The double roller brake arm assembly (Z1) is arranged symmetrically and fixed to the lower bearing seat (Z5) by a pin (Z6); the wedge block assembly (Z3) is fixed to the upper bearing seat (Z4); the spring (Z2) is fixedly connected to the upper bearing seat (Z4) and the lower bearing seat (Z5), and applies a force to the wedge block assembly (Z3) connected to the upper bearing seat (Z4).

[0007] In a further embodiment, the double roller brake arm assembly (Z1) comprises a first outer fixing ring (1), a second outer fixing ring (2), a first hexagon socket screw (3), a second hexagon socket screw (4), a third hexagon socket screw (5), a wedge roller shaft (6), a first arm roller shaft (7), a second arm roller shaft (8), a clamping claw (9), a brake arm (10), a left bracket (11), a right bracket (12), a brake arm roller (13), and a wedge roller (14);

[0008] The clamping jaw (9) and the brake arm (10) are fixed with the first hexagon socket head cap screw (3); the left bracket (11), the right bracket (12) and the brake arm (10) are fixed; the arm roller (13) and the brake arm (10) are assembled and fixed with the first arm roller shaft (7), and the arm roller (13) can rotate freely around the first arm roller shaft (7). The first outer fixing ring (1) is assembled and fixed with the first arm roller shaft (7) to limit the axial movement of the first arm roller shaft (7); the wedge roller (14) and the left bracket (11), the right bracket (12) are fixed with the wedge roller shaft (6), and the wedge roller (14) can rotate freely around the wedge roller shaft (6). The second outer fixing ring (2) is fixed with the wedge roller shaft (6) to limit the axial movement of the wedge roller shaft (6).

[0009] In a further embodiment, the wedge block assembly (Z3) includes a fourth hexagon socket head cap screw (21), a fifth hexagon socket head cap screw (22), a wedge support (23), a roller wedge (24), a guide plate (25), and a pull rod (26);

[0010] The wedge support (23) and the roller wedge (24) are fixed with the fifth hexagon socket head cap screw (22); the guide plate (25) and the roller wedge (24) are fixed with the fourth hexagon socket head cap screw (21); the pull rod (26) and the wedge support (23) are assembled and fixed.

[0011] In a further embodiment, the wedge block assembly (Z3) is fixedly installed on the lower plane of the upper bearing seat (Z4).

[0012] In a further embodiment, the double-roller brake arm assembly (Z1) is fixedly installed on both side surfaces in the middle of the lower bearing seat (Z5) and is connected with a pin shaft (Z6).

[0013] Beneficial effects: The brake arm structure of the present utility model is designed as an orbital clamping device in which double rollers are in contact with the inclined surface of the wedge block. With the help of spring force, the wedge block assembly is lifted and lowered to rotate the brake arm, so as to clamp and release the track. The double rollers are in contact with the inclined surface of the wedge block, and the friction coefficient is small. The parts are not easily worn, and the maintenance is simple. Compared with the prior art, the present utility model has the advantages of simple structure, reliable operation, small external dimensions, ensuring that the equipment using this device will not move during operation, and realizing reliable clamping and releasing during the operation of the equipment. Description of the Drawings

[0014] Figure 1 is the structural schematic diagram of the present utility model.

[0015] Figure 2 is the front view and left view structural schematic diagrams of the double-roller brake arm assembly of the present utility model.

[0016] Figure 3 is the front view and left view structural schematic diagrams of the wedge assembly of the present utility model.

[0017] Reference numerals: double-roller brake arm assembly (Z1), wedge block assembly (Z3), spring (Z2), upper bearing block (Z4), lower bearing block (Z5), pin shaft (Z6), first outer fixing ring (1), second outer fixing ring (2), first hexagon socket head cap screw (3), second hexagon socket head cap screw (4), third hexagon socket head cap screw (5), wedge roller shaft (6), first arm roller shaft (7), second arm roller shaft (8), clamp jaw (9), brake arm (10), left bracket (11), right bracket (12), brake arm roller (13), wedge roller (14), fourth hexagon socket head cap screw (21), fifth hexagon socket head cap screw (22), wedge support (23), roller wedge (24), guide plate (25), pull rod (26). Detailed implementation manners

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] A double-roller brake arm track clamping device, as Figure 1As shown, it includes: a double-roller brake arm assembly (Z1), a wedge block assembly (Z3), a spring (Z2), an upper bearing seat (Z4), a lower bearing seat (Z5), and a pin shaft (Z6).

[0022] In one embodiment, as Figure 1 shown, the double-roller brake arm assembly (Z1) is arranged symmetrically left and right and fixed to the lower bearing seat (Z5) with a pin shaft (Z6); the wedge block assembly (Z3) is fixed to the upper bearing seat (Z4); the spring (Z2) is fixedly connected to the upper bearing seat (Z4) and the lower bearing seat (Z5), applying a force to the wedge block assembly (Z3) connected to the upper bearing seat (Z4).

[0023] In one embodiment, as Figure 2 and Figure 3 shown, the double-roller brake arm assembly (Z1) includes a first outer fixing ring (1), a second outer fixing ring (2), a first hexagon socket head cap screw (3), a second hexagon socket head cap screw (4), a third hexagon socket head cap screw (5), a wedge roller shaft (6), a first arm roller shaft (7), a second arm roller shaft (8), a clamp jaw (9), a brake arm (10), a left bracket (11), a right bracket (12), a brake arm roller (13), and a wedge roller (14);

[0024] The clamp jaw (9) is fixed to the brake arm (10) with the first hexagon socket head cap screw (3); the left bracket (11) and the right bracket (12) are fixed to the brake arm (10); the arm roller (13) is assembled and fixed to the brake arm (10) with the first arm roller shaft (7), and the arm roller (13) can rotate freely around the first arm roller shaft (7). The first outer fixing ring (1) is assembled and fixed to the first arm roller shaft (7) to limit the axial movement of the first arm roller shaft (7); the wedge roller (14) is fixed to the left bracket (11) and the right bracket (12) with the wedge roller shaft (6), and the wedge roller (14) can rotate freely around the wedge roller shaft (6). The second outer fixing ring (2) is fixed to the wedge roller shaft (6) to limit the axial movement of the wedge roller shaft (6).

[0025] In one embodiment, as Figure 2 and Figure 3 shown, the wedge block assembly (Z3) includes a fourth hexagon socket head cap screw (21), a fifth hexagon socket head cap screw (22), a wedge-shaped support (23), a roller wedge (24), a guide plate (25), and a pull rod (26);

[0026] The wedge-shaped support (23) and the roller wedge (24) are fixed with the fifth hexagon socket head cap screw (22); the guide plate (25) and the roller wedge (24) are fixed with the fourth hexagon socket head cap screw (21); the pull rod (26) is assembled and fixed to the wedge-shaped support (23).

[0027] In one embodiment, as Figure 2 andFigure 3 As shown, the wedge block assembly (Z3) is fixedly installed on the lower plane of the upper bearing block (Z4).

[0028] In one embodiment, as Figure 2 and Figure 3 shown, the double-roller brake arm assembly (Z1) is fixedly installed on both side faces in the middle of the lower bearing block (Z5) and is connected by a pin shaft (Z6).

[0029] When the oil cylinder is depressurized, the wedge block assembly (Z3) rises under the action of the spring force. The inclined surface of the wedge block presses against the rollers of the left and right brackets, and the double-roller brake arm assembly rotates to clamp the track. When the oil cylinder is pressurized, the spring is compressed, the wedge block descends, the inclined surface of the wedge block separates from the bracket rollers, and the double-roller brake arm releases the track.

[0030] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present utility model.

Claims

1. A double roller brake arm track clamping device, characterized in that: include: Double roller brake arm assembly (Z1), wedge block assembly (Z3), spring (Z2), upper bearing seat (Z4), lower bearing seat (Z5); The double roller brake arm assembly (Z1) is arranged symmetrically and fixed to the lower bearing seat (Z5) by a pin (Z6); the wedge block assembly (Z3) is fixed to the upper bearing seat (Z4); the spring (Z2) is fixedly connected to the upper bearing seat (Z4) and the lower bearing seat (Z5) to apply a force to the wedge block assembly (Z3) connected to the upper bearing seat (Z4).

2. A double roller brake arm track clamping device according to claim 1, characterized in that: The double roller brake arm assembly (Z1) comprises a first outer fixing ring (1), a second outer fixing ring (2), a first hexagon socket screw (3), a second hexagon socket screw (4), a third hexagon socket screw (5), a wedge roller shaft (6), a first arm roller shaft (7), a second arm roller shaft (8), a clamping claw (9), a brake arm (10), a left bracket (11), a right bracket (12), a brake arm roller (13), and a wedge roller (14); The clamp claw (9) and the brake arm (10) are fixed by a first hexagon socket screw (3); the left bracket (11) and the right bracket (12) are fixed by the brake arm (10); the arm roller (13) and the brake arm (10) are assembled and fixed by a first arm roller shaft (7), the arm roller (13) can rotate freely around the first arm roller shaft (7), the first outer fixing ring (1) and the first arm roller shaft (7) are assembled and fixed to limit the axial movement of the first arm roller shaft (7); the wedge roller (14) and the left bracket (11) and the right bracket (12) are fixed by a wedge roller shaft (6), the wedge roller (14) can rotate freely around the wedge roller shaft (6), the second outer fixing ring (2) and the wedge roller shaft (6) are fixed to limit the axial movement of the wedge roller shaft (6).

3. A double roller brake arm track clamping device according to claim 1, characterized in that: The wedge block assembly (Z3) comprises a fourth hexagon socket screw (21), a fifth hexagon socket screw (22), a wedge support (23), a roller wedge (24), a guide plate (25), and a pull rod (26); The wedge-shaped support (23) and the roller wedge (24) are fixed by a fifth hexagon socket screw (22); the guide plate (25) and the roller wedge (24) are fixed by a fourth hexagon socket screw (21); and the pull rod (26) and the wedge-shaped support (23) are assembled and fixed.

4. A double roller brake arm track clamping device according to claim 1, characterized in that: The wedge-shaped block assembly (Z3) is fixedly mounted on the lower plane of the upper bearing seat (Z4).

5. A double roller brake arm track clamping device according to claim 1, characterized in that: The double roller brake arm assembly (Z1) is fixedly mounted on the two side surfaces in the middle of the lower bearing seat (Z5) and connected by a pin shaft (Z6).

Images