Inhaul cable sub-control box with amplification function

Abstract

The utility model discloses an inhaul cable sub-control box with an amplification function, which comprises a movable pulley transmission component, a power transmission component and a control component, wherein the movable pulley transmission component can amplify an input force and divide the input force into a plurality of output forces and is arranged in a box body; the input rod is slidably installed on the side face of the box body, the outer end of the input rod is connected with the input inhaul cable, and the inner end of the input rod is connected with the input force end of the movable pulley transmission assembly; and the output rods are installed on the side face of the box body in a sliding mode, the inner ends of the multiple output rods are connected with the multiple output force ends of the movable pulley transmission assembly correspondingly, and the outer ends of the multiple output rods are connected with output inhaul cables correspondingly. According to the scheme, the pulling force of the input inhaul cable is conveyed to the movable pulley transmission assembly through the input rod, the input pulling force is amplified through the movable pulley transmission assembly and divided into a plurality of output forces, and the output inhaul cables are pulled through the output rods. Therefore, a plurality of unit brakes are simultaneously driven to perform mechanical release parking braking by one-time pulling operation, and the mechanical release parking braking efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of parking brake relief, and in particular to a cable sub-control box with an amplification function. Background Art

[0002] Railway locomotives and EMUs need to mechanically release the parking brakes in abnormal parking relief situations. A parking brake mechanical release handle is provided at the unit brake position of the parking brake function, and pulling the handle can mechanically release the parking brake. However, the current parking brake mechanical release handle can only drive one unit brake to mechanically release the parking brake at a time, and cannot drive multiple unit brakes to mechanically release the parking brake. Therefore, a cable control box with an amplification function is designed to achieve the effect of force distribution and force amplification, so that a single pulling operation can simultaneously drive multiple unit brakes to mechanically release the parking brake, thereby improving the efficiency of mechanical parking brake release. Summary of the invention

[0003] The present invention provides a cable sub-control box with an amplification function, which transmits the pulling force of the input cable to the movable pulley transmission assembly through an input rod, amplifies the input pulling force through the movable pulley transmission assembly and divides it into multiple output forces, pulls multiple output cables through multiple output rods, and drives multiple unit brakes to work through the multiple output cables, thereby achieving one pulling operation and driving multiple unit brakes to perform mechanical relief parking braking at the same time, thereby improving the efficiency of mechanical relief parking braking.

[0004] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0005] The present invention provides a cable sub-control box with an amplification function, comprising:

[0006] A movable pulley transmission assembly capable of amplifying an input force and dividing the input force into a plurality of output forces, wherein the movable pulley transmission assembly is arranged inside the box body;

[0007] An input rod is slidably mounted on the side of the box body, the outer end of the input rod is connected to the input cable, and the inner end of the input rod is connected to the input force end of the movable pulley transmission assembly;

[0008] An output rod is slidably mounted on the side of the box body. A plurality of output rods are provided, and the inner ends of the plurality of output rods are respectively connected to the plurality of output force ends of the movable pulley transmission assembly, and the outer ends of the plurality of output rods are respectively connected to output cables.

[0009] Optionally, the movable pulley transmission assembly includes:

[0010] a first movable pulley rotatably connected to the input rod;

[0011] A second movable pulley rotatably connected to the output rod, wherein two second movable pulleys are provided and symmetrically distributed with respect to the axis of the input rod;

[0012] The steel wire rope has two ends connected to the bearing plate inside the box body, and the middle of the steel wire rope is respectively passed around the first movable pulley and the second movable pulley distributed in the shape of a finished product, and the steel wire rope is in sliding contact with the first movable pulley and the second movable pulley.

[0013] Optionally, the movable pulley transmission assembly further includes:

[0014] A first connecting frame in a horizontal U-shaped structure, the first connecting frame is connected to the inner end of the input rod, and the first movable pulley is rotatably mounted inside the first connecting frame via a first rotating shaft;

[0015] The second connecting frame is a horizontal U-shaped structure, the second connecting frame is connected to the inner end of the output rod, and the second movable pulley is rotatably installed inside the second connecting frame through a second rotating shaft.

[0016] Optionally, the movable pulley transmission assembly further includes:

[0017] A third connecting frame in a horizontal U-shaped structure, wherein the third connecting frame is rotatably connected to the second rotating shaft;

[0018] A guide rod connected to the third connecting frame, the guide rod passes through the bearing plate, and the guide rod and the bearing plate are slidably matched;

[0019] A return spring is sleeved on the outside of the guide rod, and two ends of the return spring are respectively in contact with the bearing plate and the third connecting frame.

[0020] Optionally, a first limiting groove and a second limiting groove are formed on the inner bottom surface of the box body, and the first limiting groove and the second limiting groove extend along the axial direction of the input rod respectively; two second limiting grooves are symmetrically distributed on both sides of the first limiting groove, the bottom end of the first rotating shaft extends into the first limiting groove and slides with the first limiting groove, and the bottom end of the second rotating shaft extends into the second limiting groove and slides with the second limiting groove.

[0021] Optionally, the length of the first limiting groove is greater than twice the length of the second limiting groove, and one end of the first limiting groove in the length direction corresponds to the middle position of the length of the second limiting groove.

[0022] Optionally, the outer end of the input rod and the outer end of the output rod are both provided with a quick-connect connector for connecting a cable.

[0023] Optionally, the upper surface of the box body is an open structure, and a cover body is installed by bolts.

[0024] Optionally, a mounting ear plate is formed on the outer side of the box body.

[0025] The above solution of the present invention includes at least the following beneficial effects:

[0026] The above scheme of the present invention transmits the tension of the input cable to the movable pulley transmission assembly through the input rod, amplifies the input tension through the movable pulley transmission assembly and divides it into multiple output forces, pulls multiple output cables through multiple output rods, and drives multiple unit brakes to work through the multiple output cables, thereby achieving one pulling operation and driving multiple unit brakes to perform mechanical relief parking braking at the same time, thereby improving the efficiency of mechanical relief parking braking. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a top view of a cable sub-control box with a magnifying function provided by an embodiment of the present invention;

[0028] Figure 2 yes Figure 1 AA cross-section diagram of ;

[0029] Figure 3 yes Figure 1 BB cross-section diagram;

[0030] Figure 4 It is a schematic diagram of the distribution structure of the first limit groove and the second limit groove in the cable sub-control box with amplification function provided by an embodiment of the present invention;

[0031] Figure 5 is a schematic diagram of the three-dimensional structure of a cable sub-control box with a magnifying function provided by an embodiment of the present invention;

[0032] Figure 6 is an application schematic diagram of a cable sub-control box with an amplification function provided by an embodiment of the present invention;

[0033] Figure 7 It is a schematic diagram of an application example of a cable sub-control box with an amplification function provided by an embodiment of the present invention.

[0034] The following are the descriptions of the reference numerals:

[0035] 1. Box body; 2. Input rod; 3. Loading plate; 4. Guide rod; 5. Return spring; 6. Steel wire rope; 7. Third connecting frame; 8. Second movable pulley; 9. Second connecting frame; 10. Output rod; 11. First connecting frame; 12. First movable pulley; 13. First rotating shaft; 14. First limiting groove; 15. Second limiting groove; 16. Second rotating shaft; 17. Cover body; 18. Quick connector; 19. Mounting ear plate; 20. Input cable; 21. Output cable. DETAILED DESCRIPTION

[0036] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0037] like Figure 1-Figure 6 As shown, the present invention provides a cable sub-control box with an amplification function, comprising:

[0038] A movable pulley transmission assembly capable of amplifying input force and dividing the input force into multiple output forces, the movable pulley transmission assembly being arranged inside the box body 1;

[0039] An input rod 2 is slidably mounted on the side of the box body 1, the outer end of the input rod 2 is connected to the input cable 20, and the inner end of the input rod 2 is connected to the input force end of the movable pulley transmission assembly;

[0040] The output rod 10 is slidably mounted on the side of the box body 1. There are multiple output rods 10, and the inner ends of the multiple output rods 10 are respectively connected to the multiple output force ends of the movable pulley transmission assembly, and the outer ends of the multiple output rods 10 are respectively connected to the output cables 21.

[0041] In this embodiment, the input cable 20 is pulled, and the pulling force is transmitted to the movable pulley transmission assembly through the input rod 2. The input pulling force is amplified by the movable pulley transmission assembly and divided into multiple output forces. The force is transmitted through multiple output rods 10, thereby pulling multiple output cables 21, and multiple unit brakes are driven to work through the multiple output cables 21, so that one pulling operation can simultaneously drive multiple unit brakes to perform mechanical relief parking braking, thereby improving the efficiency of mechanical relief parking braking.

[0042] like Figure 1 As shown, in an optional embodiment of the present invention, the movable pulley transmission assembly includes:

[0043] A first movable pulley 12 rotatably connected to the input rod 2;

[0044] A second movable pulley 8 rotatably connected to the output rod 10, wherein two second movable pulleys 8 are provided and symmetrically distributed with the axis of the input rod 2 as the reference;

[0045] The steel wire rope 6 has two ends connected to the bearing plate 3 inside the box body 1, and the middle of the steel wire rope 6 passes around the first movable pulley 12 and the second movable pulley 8 distributed in the shape of a finished product, and the steel wire rope 6 is in sliding contact with the first movable pulley 12 and the second movable pulley 8.

[0046] In this embodiment, the input rod 2 drives the first movable pulley 12 to move, and the steel wire rope 6 is used to enable the first movable pulley 12 to drive the two second movable pulleys 8 to move, and the two second movable pulleys 8 drive the output rod 10 to slide, thereby achieving a force distribution effect. The force is transmitted through the first movable pulley 12, the steel wire rope 6 and the second movable pulley 8, so that the input tension can be amplified;

[0047] When the tensions of the two second output cables 21 are different, the steel wire rope 6 slides relative to the first movable pulley 12 and the second movable pulley 8, thereby ensuring that the two second movable pulleys 8 can move with the first movable pulley 12 under the force transmission of the steel wire rope 6, ensuring smooth force distribution.

[0048] like Figure 2 and Figure 3 As shown, in an optional embodiment of the present invention, the movable pulley transmission assembly further includes:

[0049] A first connecting frame 11 having a horizontal U-shaped structure, the first connecting frame 11 is connected to the inner end of the input rod 2, and a first movable pulley 12 is rotatably mounted inside the first connecting frame 11 via a first rotating shaft 13;

[0050] The second connecting frame 9 is a horizontal U-shaped structure, and the second connecting frame 9 is connected to the inner end of the output rod 10 . The second movable pulley 8 is rotatably installed inside the second connecting frame 9 via a second rotating shaft 16 .

[0051] In this embodiment, the first movable pulley 12 and the input rod 2 can be rotationally connected through the first connecting frame 11, and the second movable pulley 8 and the input rod 2 can be rotationally connected through the second connecting frame 9, thereby ensuring smooth force transmission.

[0052] like Figure 1 and Figure 3 As shown, in an optional embodiment of the present invention, the movable pulley transmission assembly further includes:

[0053] A third connecting frame 7 in a horizontal U-shaped structure, the third connecting frame 7 is rotatably connected to the second rotating shaft 16;

[0054] The guide rod 4 is connected to the third connecting frame 7, the guide rod 4 passes through the bearing plate 3, and the guide rod 4 and the bearing plate 3 are slidably matched;

[0055] The return spring 5 is sleeved on the outer side of the guide rod 4 , and two ends of the return spring 5 are respectively in contact with the bearing plate 3 and the third connecting frame 7 .

[0056] In this embodiment, the guide rod 4 and the second movable pulley 8 are rotationally connected through the third connecting frame 7, so that the movement of the second movable pulley 8 is guided by the guide rod 4 and the supporting plate 3; when the pulling force on the input cable 20 is removed, the input cable 20 and the output cable 21 reset themselves, so that the first movable pulley 12 and the second movable pulley 8 are reset. At the same time, the elastic force of the reset spring 5 can be used to push the second movable pulley 8 to reset, which helps to speed up the reset of the first movable pulley 12 and the second movable pulley 8.

[0057] like Figure 2 and Figure 3 As shown, in an optional embodiment of the present invention, a first limiting groove 14 and a second limiting groove 15 are formed on the inner bottom surface of the box body 1, and the first limiting groove 14 and the second limiting groove 15 extend respectively along the axial direction of the input rod 2; the two second limiting grooves 15 are symmetrically distributed on both sides of the first limiting groove 14, the bottom end of the first rotating shaft 13 extends into the first limiting groove 14 and slides with the first limiting groove 14, and the bottom end of the second rotating shaft 16 extends into the second limiting groove 15 and slides with the second limiting groove 15.

[0058] In this embodiment, the first rotating shaft 13 is limited by the first limiting groove 14, so that the stability of the first movable pulley 12 can be improved, the first movable pulley 12 can be prevented from flipping over, and the first movable pulley 12 is ensured to be in accurate contact with the wire rope 6; the second rotating shaft 16 is limited by the second limiting groove 15, so that the stability of the second movable pulley 8 can be improved, the second movable pulley 8 can be prevented from flipping over, and the second movable pulley 8 is ensured to be in accurate contact with the wire rope 6, thereby ensuring smooth force transmission.

[0059] like Figure 4 As shown, in an optional embodiment of the present invention, the length of the first limiting groove 14 is greater than twice the length of the second limiting groove 15 , and one end of the first limiting groove 14 in the length direction corresponds to the middle position of the length of the second limiting groove 15 .

[0060] In this embodiment, the first limiting groove 14 and the second limiting groove 15 adopt the above structure, and cooperate with the first movable pulley 12, the wire rope 6 and the second movable pulley 8 to ensure that when any output cable 21 is abnormal, the normal output cable 21 can be pulled, thereby ensuring the smooth implementation of mechanical parking brake release;

[0061] The details are as follows:

[0062] like Figure 7As shown, the two second movable pulleys 8 are respectively movable pulley a and movable pulley b; the output cable 21 connected to the movable pulley a is cable c, and the output cable 21 connected to the movable pulley b is cable d; the second rotating shaft 16 corresponding to the movable pulley a is rotating shaft e, and the second rotating shaft 16 corresponding to the movable pulley b is rotating shaft f; the second limiting groove 15 slidingly matched with the rotating shaft e is limiting groove g, and the second limiting groove 15 slidingly matched with the rotating shaft f is limiting groove h;

[0063] Example 1:

[0064] Cable c and cable d are both normal, and the tension of cable c is less than that of cable d;

[0065] When the first movable pulley 12 is moved by the tension, since the tension of the cable c is less than the tension of the cable d, the wire rope 6 slides relative to the first movable pulley 12 and the second movable pulley 8. Through the transmission of the wire rope 6, the movable pulley a is first moved by the tension, thereby pulling the cable c. When the tension is sufficient to pull the cable d, the movable pulley b is moved by the tension, thereby pulling the cable d.

[0066] Example 2:

[0067] Cable c is stuck and cannot be pulled, but cable d is normal;

[0068] When the first movable pulley 12 is moved by the tension, the cable c is stuck and cannot be pulled. At this time, the wire rope 6 slides relative to the first movable pulley 12 and the second movable pulley 8. Through the transmission of the wire rope 6, the movable pulley b is forced to move, thereby pulling the cable d, and the cable d drives the unit brake to work, and mechanically release the parking brake;

[0069] Example 3:

[0070] Cable c is disconnected, cable d is normal;

[0071] When the first movable pulley 12 moves under the tension, since the cable c is disconnected, the wire rope 6 slides relative to the first movable pulley 12 and the second movable pulley 8 at this time. The movable pulley a is first moved under the tension through the wire rope 6. As the movable pulley a moves, the rotating shaft e slides inside the limiting groove g. As the movable pulley a moves, the rotating shaft e contacts the end of the limiting groove g, and the rotating shaft e can no longer move. At this time, the movable pulley b is forced to move through the wire rope 6, thereby pulling the cable d, and the unit brake is driven to work through the cable d to perform mechanical release of the parking brake.

[0072] like Figure 5 As shown, in an optional embodiment of the present invention, the outer ends of the input rod 2 and the output rod 10 are both provided with quick-connect connectors 18 for connecting cables.

[0073] In this embodiment, the quick connector 18 can realize the quick disassembly and assembly of the input rod 2 and the input cable 20 , and the output rod 10 and the output cable 21 , thereby facilitating the disassembly and assembly of the input cable 20 and the output cable 21 .

[0074] like Figure 5 As shown, in an optional embodiment of the present invention, the upper surface of the box body 1 is an open structure, and a cover body 17 is installed by bolts.

[0075] In this embodiment, the components inside the box body 1 can be protected by the detachable cover 17 to ensure smooth force transmission, while opening the cover 17 facilitates maintenance of the internal components.

[0076] like Figure 5 As shown, in an optional embodiment of the present invention, a mounting ear plate 19 is formed on the outer side of the box body 1.

[0077] In this embodiment, the installation of the box body 1 is facilitated by installing the ear plate 19 .

[0078] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A cable sub-control box with amplification function, characterized in that: include: A movable pulley transmission assembly capable of amplifying an input force and dividing the input force into a plurality of output forces, wherein the movable pulley transmission assembly is arranged inside the box body (1); An input rod (2) is slidably mounted on the side of the box body (1), the outer end of the input rod (2) is connected to the input cable (20), and the inner end of the input rod (2) is connected to the input force end of the movable pulley transmission assembly; An output rod (10) is slidably mounted on the side of the box body (1), and a plurality of output rods (10) are provided, and the inner ends of the plurality of output rods (10) are respectively connected to the plurality of output force ends of the movable pulley transmission assembly, and the outer ends of the plurality of output rods (10) are respectively connected to output cables (21).

2. The cable sub-control box with amplification function according to claim 1 is characterized in that: The movable pulley transmission assembly comprises: a first movable pulley (12) rotatably connected to the input rod (2); a second movable pulley (8) rotatably connected to the output rod (10), wherein two second movable pulleys (8) are provided and are symmetrically distributed with the axis of the input rod (2) as the reference; A steel wire rope (6), both ends of which are connected to a load-bearing plate (3) inside the box body (1), a middle portion of the steel wire rope (6) respectively passes around a first movable pulley (12) and a second movable pulley (8) arranged in a finished product shape, and the steel wire rope (6) is in sliding contact with the first movable pulley (12) and the second movable pulley (8).

3. The cable sub-control box with amplification function according to claim 2 is characterized in that: The movable pulley transmission assembly also includes: A first connecting frame (11) having a horizontal U-shaped structure, the first connecting frame (11) being connected to the inner end of the input rod (2), and the first movable pulley (12) being rotatably mounted inside the first connecting frame (11) via a first rotating shaft (13); A second connecting frame (9) is in a horizontal U-shaped structure, the second connecting frame (9) is connected to the inner end of the output rod (10), and the second movable pulley (8) is rotatably mounted inside the second connecting frame (9) via a second rotating shaft (16).

4. The cable sub-control box with amplification function according to claim 3 is characterized in that: The movable pulley transmission assembly also includes: a third connecting frame (7) in a horizontal U-shaped structure, the third connecting frame (7) being rotatably connected to the second rotating shaft (16); A guide rod (4) connected to the third connecting frame (7), the guide rod (4) passing through the bearing plate (3), and the guide rod (4) and the bearing plate (3) are slidably matched; A return spring (5) is sleeved on the outside of the guide rod (4), and two ends of the return spring (5) are respectively in contact with the bearing plate (3) and the third connecting frame (7).

5. The cable sub-control box with amplification function according to claim 3 is characterized in that: A first limiting groove (14) and a second limiting groove (15) are formed on the inner bottom surface of the box body (1), and the first limiting groove (14) and the second limiting groove (15) respectively extend along the axial direction of the input rod (2); two second limiting grooves (15) are symmetrically distributed on both sides of the first limiting groove (14); the bottom end of the first rotating shaft (13) extends into the first limiting groove (14) and is slidably matched with the first limiting groove (14); the bottom end of the second rotating shaft (16) extends into the second limiting groove (15) and is slidably matched with the second limiting groove (15).

6. The cable sub-control box with amplification function according to claim 5 is characterized in that: The length of the first limiting groove (14) is greater than twice the length of the second limiting groove (15), and one end of the first limiting groove (14) in the length direction corresponds to the middle position of the length of the second limiting groove (15).

7. The cable sub-control box with amplification function according to claim 1 is characterized in that: The outer end of the input rod (2) and the outer end of the output rod (10) are both provided with a quick-connect joint (18) for connecting a cable.

8. The cable sub-control box with amplification function according to claim 1 is characterized in that: The upper surface of the box body (1) is an open structure, and a cover body (17) is installed by bolts.

9. The cable sub-control box with amplification function according to claim 1 is characterized in that: A mounting ear plate (19) is formed on the outer side of the box body (1).

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