CN106926865A - Relief device for parking brake of locomotive - Google Patents

Abstract

The invention provides a relieving device of a locomotive parking brake, which comprises a hand lever arranged along the transverse direction, wherein a second supporting stopper is arranged on the peripheral surface of the hand lever, the second supporting stopper is fixedly connected with the hand lever, a transverse pushing assembly is arranged along the transverse side of the second supporting stopper, the transverse pushing assembly is contacted with the second supporting stopper, the transverse pushing assembly is connected with a driving piece which can drive the transverse pushing assembly to push the second supporting stopper to move along the transverse direction in a single direction, and the driving piece is positioned along the vertical side of the hand lever. The invention can improve the flexibility and the working efficiency of the locomotive parking brake relieving operation process.

Description

Relief device for parking brake of locomotive

technical field

The invention belongs to the technical field of rail vehicles, in particular to the field of foundation braking devices for locomotives, in particular to a relief device for parking brakes of locomotives.

Background technique

The foundation braking device of the locomotive generates braking force through the brake caliper unit or the tread brake unit, and pushes the brake pads to press the brake disc to realize the braking stop of the locomotive. When the rolling stock is parked in the garage or on the ramp, in order to keep the braking force constant, the foundation braking device is usually designed with a parking brake. The manual relief device is an important part of the parking brake of the locomotive. When the parking brake is applied to the parking brake, the hand lever of the manual release device can be pulled to completely relieve the braking force generated by the parking brake.

At present, most of the manual release devices of the parking brake need to manually pull the handle bar to complete the release operation of the parking brake of the locomotive. However, since the manual relief device is usually located at the lower part of the car body and requires the operator to complete the relief operation under the car, the way of manually pulling the handlebar to release the parking brake of the locomotive is time-consuming, laborious and inefficient.

Based on the above, Chinese invention patent CN106364523A discloses a relief auxiliary device for the parking brake mechanism of a locomotive, which includes a cylinder body fixed on the parking brake mechanism. On the outside of the handle rod, the outer peripheral side of the piston is attached to the inner wall of the cylinder. The device completely replaces the existing manual operation of the hand lever by adopting the automatic operation of the hand lever. However, when the components in the control air circuit stop working or fail, or the operator is outside the locomotive, due to the cylinder block hand lever Therefore, it is difficult to relieve the parking brake of the locomotive by manually pulling the handle rod, which affects the work efficiency.

Contents of the invention

The invention aims at the technical problem that the existing relief device affects the work efficiency due to mutual interference between the manual operation mode and the automatic operation mode, and proposes a locomotive parking brake relief device which can effectively avoid the movement interference between the manual operation and the automatic operation.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A release device for a parking brake of a locomotive, comprising a handle bar arranged transversely, a second support block is arranged on the outer peripheral surface of the handle bar, the second support block is fixedly connected with the handle bar, and the side of the second support block along the transverse direction The side is provided with a horizontal push-out assembly, which is in contact with the second support block, and the horizontal push-out assembly is connected with a driving member that can drive the horizontal push-out assembly to push the second support block to move in one direction in the horizontal direction. Vertical sideways.

Preferably, a first supporting stopper is provided on the outer peripheral surface of the handle bar, the first support stopper is fixedly connected with the handle bar, and an elastic member is connected between the first support stopper and the lateral push-out assembly, and the elastic member is arranged along the lateral direction.

Preferably, the elastic member is a spring or rubber.

Preferably, the lateral push-out assembly includes a fixed part that can be fixedly connected with the locomotive, and a rotating part connected with the fixed part, the rotating part is connected to the end of the fixed part along the lateral direction and close to the second support block, and one end of the rotating part along the lateral direction It is connected with the fixed part by means of screw transmission, and the other end of the rotating part along the transverse direction is in contact with the second supporting stopper.

Preferably, one end of the fixed part close to the rotating part is provided with an external thread, and one end of the rotating part close to the fixed part is provided with a threaded hole matching with the external thread of the fixed part, and the rotating part and the fixed part are connected by threads.

Preferably, the drive member is connected with a transmission member that can rotate synchronously with the rotation member, and the power output end of the drive member is connected with the transmission member to drive the transmission member to rotate.

Preferably, the driving member is one of servo motor, stepping motor or hydraulic motor.

Preferably, the transmission member is a first gear, and the rotating member is covered with a second gear meshing with the transmission member, and the second gear is fixedly connected with the rotating member.

Preferably, the lateral push-out assembly includes a guide part that can be fixedly connected with the locomotive, and a moving part that can move in a straight line on the guide part along the lateral direction. The parts are in contact, and the power output end of the driving part is connected with the moving part.

Preferably, the driving member is one of an air cylinder, a hydraulic cylinder or a linear motor.

Compared with prior art, advantage and positive effect of the present invention are:

The relief device for the parking brake of the locomotive of the present invention realizes the indirect driving of the hand lever by the driving piece and the unidirectional push of the hand lever by the horizontal pushing component by setting the horizontal push-out assembly and the drive piece, thereby avoiding the parking brake of the locomotive parking brake. The manual release operation is limited by the driving parts; therefore, the release device of the locomotive parking brake of the present invention retains the manual release operation function while possessing the automatic release operation function, thereby improving the flexibility of the locomotive parking brake release operation process and work efficiency.

Description of drawings

Fig. 1 is the structure schematic diagram of embodiment 1 of the release device of the locomotive parking brake of the present invention;

Figure 2 is a schematic diagram of the internal structure of Figure 1;

In the above figures: 1. Hand pull rod; 11. The first support stopper; 12. The second support stopper; 2. Horizontal push-out assembly; 21. Fixing part; 22. Rotating part; 221. Second gear; 3. Driving part; 4. Pull handle; 5. Elastic part; 6. Transmission part.

detailed description

In the following, the present invention will be specifically described through exemplary embodiments. It should be understood, however, that elements, structures and characteristics of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present invention, it should be noted that the horizontal direction of the present invention is the horizontal direction shown in Figure 2, and the vertical direction of the present invention is the vertical direction shown in Figure 2, that is, the terms "horizontal" and "vertical" The orientation or positional relationship indicated by etc. is based on the positional relationship shown in Figure 2, and the above terms are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, so as to Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

Referring to Fig. 1 and Fig. 2, a relief device for a locomotive parking brake has a structure in the state where the locomotive parking brake applies a parking brake to the locomotive: it includes a hand lever arranged in the transverse direction (that is, the horizontal direction shown in Fig. 2 ) 1. A second support block 12 is provided on the outer peripheral surface of the handle bar 1, and the second support block 12 is fixedly connected with the handle bar 1. The second support block 12 is provided with a lateral push-out assembly 2 along the lateral side, and the horizontal push-out The assembly 2 is in contact with the second support block 12, so that the lateral push-out assembly 2 can push the hand lever 1 to move laterally through the second support block 12, thereby relieving the braking force of the locomotive parking brake. The lateral push-out assembly 2 is connected with a driveable The assembly 2 is pushed out laterally to push the driving part 3 which moves the second support stopper 12 in one direction laterally, and the driving part 3 is located on the side of the handle bar 1 along the vertical direction (ie, the vertical direction shown in FIG. 2 ).

Further, as shown in Figures 1 and 2, a first support stopper 11 is also provided on the outer peripheral surface of the handle bar 1, the first support stopper 11 is fixedly connected with the handle bar 1, and the first support stopper 11 is connected to the lateral push-out assembly 2 is connected with an elastic piece 5, and the elastic piece 5 is arranged along the horizontal direction. On the other hand, the hand lever 1 is automatically returned in the lateral direction, thereby enabling continuous and multiple operations of vehicle parking relief, and at the same time improving work efficiency.

Preferably, the elastic member 5 can be a spring or rubber.

In addition, the elastic member 5 can be set to be hollow along the transverse direction, and the elastic member 5 is sleeved on the handle rod 1 .

In addition, the elastic member 5 can also be arranged in multiple arrays around the handle bar 1 .

As shown in Figures 1 and 2, the position of the first support stopper 11 can be: the first support stopper 11 is located on the lateral side of the lateral ejection assembly 2 and away from the side of the second support stopper 12, so that When the hand lever 1 is pulled to release the parking brake of the vehicle, the elastic member 5 is stretched, and when the hand lever 1 is released, the hand lever 1 returns automatically.

In addition, the position of the first support stopper 11 can also be: the first support stopper 11 is located on the side of the second support stopper 12 along the lateral direction and away from the lateral push-out assembly 2, so that when the hand lever 1 is pulled by hand to ease When the vehicle is parked and braked, the elastic member 5 is compressed, and the handle bar 1 returns automatically when the hand is released.

Further, the present invention also includes a pull handle 4, which is fixedly connected to the handle rod 1, and the operator can directly complete the manual relief action by pulling the handle 4 under the vehicle, and the operation process saves time and effort.

For the structure of the above-mentioned first support stopper 11 and the second support stopper 12, referring to Fig. 1, the first support stopper 11 and the second support stopper 12 can be hollow sleeves, the first support stopper 11 and the second support stopper 12 The piece 12 is sleeved on the handle rod 1 , and the first support stopper 11 and the second support stopper 12 can be threaded, welded or integrally connected with the handle rod 1 .

The following is an embodiment in which the release device for the parking brake of a locomotive of the present invention drives the lateral push-out assembly 2 to push the second support block 12 through the driving member 3, so as to realize the release of the parking brake and the return of the hand lever 1:

Embodiment one

As shown in Figures 1 and 2, the lateral ejection assembly 2 includes a fixing part 21 that can be fixedly connected with the locomotive (for example, fixed on the parking cylinder of the locomotive), and is connected to the fixing part 21 along the lateral direction and is close to the second support block 12 One end of the rotating part 22, one end of the rotating part 22 along the horizontal direction is connected with the fixed part 21 through a screw transmission mode, and the other end of the rotating part 22 along the lateral direction is in contact with the second support stopper 12, so that the rotating part 22 is in contact with the second supporting stopper 12. The rotary motion on the fixed part 21 is transformed into a linear motion along the transverse direction, so as to realize the pushing of the second supporting stopper 12 by the rotating part 22;

As further shown in Figure 2, the driving member 3 is located on the vertical side of the handle bar 1, and the power output end of the driving member 3 is connected with a rotatable transmission member 6, and the transmission member 6 can rotate synchronously with the rotating member 22. The power output end of 3 drives the rotating member 22 to rotate through the transmission member 6;

When in use, the driving member 3 drives the transmission member 6 to rotate, and then drives the rotating member to rotate synchronously, and then makes the rotating member move linearly in the lateral direction, so as to push the second supporting stopper 12 .

It should be noted that the elastic member 5 can be connected with the fixed member 21 or the rotating member 22. Those skilled in the art can select the connecting position of the elastic member 5 and the lateral push-out assembly 2 according to actual needs. The elastic member 5 and the first The connection mode of the support block 11 and the lateral push-out assembly 2, as well as the rigidity of the elastic member 5, can solve the technical problems to be solved by the present invention.

Preferably, as shown in FIG. 2 , both the fixing part 21 and the rotating part 22 can be sleeves, and at this time, the fixing part 21 and the rotating part 22 are both sleeved outside the handle bar 1 .

In addition, the driving member 3 can be one of a servo motor, a stepping motor or a hydraulic motor.

The structure to realize the connection between the rotating part 22 and the fixing part 21 through screw transmission can be as follows: the end of the fixing part 21 close to the rotating part 22 is provided with an external thread, and the end of the rotating part 22 close to the fixing part 21 is provided with an external thread to cooperate with the fixing part 21. The threaded hole, the rotating part 22 and the fixing part 21 are connected by threads.

In addition, the rotating part 22 can also be connected with the fixed part 21 through a screw pair.

The structure that realizes the synchronous rotation of transmission member 6 and rotating member 22 can be: as shown in Figure 1 and 2, transmission member 6 can be the first gear, and the second gear 221 that meshes with transmission member 6 is sleeved on rotating member 22, the second The second gear 221 is fixedly connected with the rotating member 22, and the transmission member 6 rotates synchronously with the rotating member 22 through gear transmission.

In addition, the transmission member 6 can also be a worm, and the transmission member 6 rotates synchronously with the rotating member 22 through the transmission of the worm.

In order to reduce the occupied space and improve the stability of the working process of the relief device, as shown in Figure 2, the transmission part 6 can be arranged on the fixed part 21, and the two ends of the transmission part 6 along the rotation axis are connected with the fixed part 21. In addition, The driving part 3 can also be fixedly connected with the fixing part 21 .

Embodiment two

The lateral push-out assembly includes a guide part that can be fixedly connected with the locomotive, and a moving part that can move in a straight line on the guide part along the lateral direction. The guide part is arranged along the lateral direction. The power output end of the driving part is connected with the moving part;

In use, the driving member drives the moving part to move laterally, so that the second supporting block is pushed through the moving part.

It should be noted that the elastic member can be connected to the limiting part or the moving part. Those skilled in the art can choose the connection position of the elastic member and the lateral push-out assembly according to actual needs, and the elastic member can be connected to the first support stopper and the lateral push-out assembly. The connection mode of the push-out assembly and the rigidity of the elastic member can solve the technical problems to be solved by the present invention.

Preferably, the driving member may be one of an air cylinder, a hydraulic cylinder or a linear motor.

Based on the above, referring to Fig. 1 and Fig. 2, the working principle of the release device of the locomotive parking brake of the present invention is:

When the parking brake of the locomotive is automatically released, the driving member 3 operates and drives the lateral push-out assembly 2 to move laterally, and then the lateral push-out assembly 2 pushes the second support stopper 12 to move laterally, and then drives the hand lever 1 to move laterally move, thereby completing the automatic release of the parking brake of the locomotive; the driving member 3 runs in reverse and drives the lateral push-out assembly 2 to move in reverse, and then the second support block 12 moves in reverse under the drive of the elastic member 5 , and then drive the hand lever 1 to move in reverse, thus completing the reset operation of the hand lever 1.

When the parking brake of the locomotive parking brake is manually released, manually pull the hand lever 1 to overcome the elastic force of the elastic force and move laterally, thus completing the manual release of the parking brake of the locomotive; release the hand lever 1, and then manually The pull bar 1 returns automatically under the action of the elastic force of the elastic member 5, thereby completing the reset operation of the hand pull bar 1.

As can be seen from the above, the release device of the locomotive parking brake of the present invention realizes the indirect driving of the driving member 3 to the handle rod 1 by setting the lateral push-out assembly 2 and the drive member 3, and the one-way push of the handle rod 1 by the lateral push-out assembly 2, thereby avoiding Therefore, the relief device of the locomotive parking brake of the present invention retains the manual relief operation function while possessing the automatic relief operation function, and then improves the The flexibility and work efficiency of the locomotive parking brake release operation process.

Claims (10)

1. A relief device for the parking brake of a locomotive, comprising a handle bar (1) arranged laterally, characterized in that: the outer peripheral surface of the handle bar (1) is provided with a second support stopper (12), the second support stopper (12) is fixedly connected with the hand pull rod (1), and the second support block (12) is provided with a lateral push-out component (2) along the lateral side, and the horizontal push-out component (2) is in contact with the second support block (12) , the lateral push-out assembly (2) is connected with a driving member (3) that can drive the lateral push-out assembly (2) to push the second support block (12) to move in one direction laterally, and the driving member (3) is located on the hand lever (1) along the vertical side. 2. The release device for the parking brake of a locomotive according to claim 1, characterized in that: a first support block (11) is also arranged on the outer peripheral surface of the hand lever (1), and the first support block (11) is connected with the handle The pull rod (1) is fixedly connected, and an elastic member (5) is connected between the first support stopper (11) and the lateral push-out assembly (2), and the elastic member (5) is arranged along the lateral direction. 3. The release device for the parking brake of a locomotive according to claim 2, characterized in that: the elastic member (5) is a spring or rubber. 4. The release device for the parking brake of the locomotive according to claim 1, characterized in that: the lateral push-out assembly (2) includes a fixed part (21) that can be fixedly connected with the locomotive, and a rotating part connected with the fixed part (21) (22), the rotating part (22) is connected to the end of the fixed part (21) along the lateral direction and close to the second support block (12), and one end of the rotating part (22) along the lateral direction and the fixed part (21) are driven by a screw The other end of the rotating member (22) along the transverse direction is in contact with the second supporting stopper (12). 5. The release device for the parking brake of a locomotive according to claim 4, characterized in that: the end of the fixed part (21) close to the rotating part (22) is provided with an external thread, and the end of the rotating part (22) close to the fixed part (21) One end is provided with a threaded hole cooperating with the external thread of the fixing part (21), and the rotating part (22) is connected with the fixing part (21) through threads. 6. The release device for the parking brake of a locomotive according to claim 4, characterized in that: the driving member (3) is connected with a transmission member (6) that can rotate synchronously with the rotating member (22), and the power of the driving member (3) The output end is connected with the transmission member (6) to drive the transmission member (6) to rotate. 7. The release device for the parking brake of a locomotive according to any one of claims 1-6, characterized in that the driving member (3) is one of a servo motor, a stepping motor or a hydraulic motor. 8. The release device for the parking brake of a locomotive according to claim 6, characterized in that: the transmission member (6) is a first gear, and the rotating member (22) is sleeved with a second gear ( 221), the second gear (221) is fixedly connected with the rotating member (22). 9. The release device for the parking brake of a locomotive according to claim 1, wherein the lateral push-out assembly includes a guide part that can be fixedly connected with the locomotive, and a moving part that can move in a straight line on the guide part along the transverse direction, and the guide part can move along the transverse direction It is provided that the moving part is slidably connected with the guide part, the moving part is in contact with the second support block, and the power output end of the driving part is connected with the moving part. 10. The release device for the parking brake of a locomotive according to claim 1, 2, 3 or 9, wherein the driving member is one of a cylinder, a hydraulic cylinder or a linear motor.