A kind of adjustment tool and adjustment method for railway freight car brake adjuster

Abstract

The present invention belongs to the field of railway freight car equipment maintenance auxiliary devices. When replacing the brake shoes of railway freight cars, the existing brake adjuster adjustment method is that the inspector climbs onto the brake platform and uses a wrench or a brake adjuster of other vehicle models to adjust the tightness, which is time-consuming, labor-intensive and has potential safety hazards. The present invention provides a loosening tool and an adjustment method for a railway freight car brake adjuster. The locking sleeve clamps the front cover of the brake shoe clearance adjuster, and the outer gear teeth of the locking sleeve mesh with the auxiliary gear of the bidirectional rotating gear set. The driving device drives the locking sleeve to rotate through the transmission part, the center gear and the bevel gear to achieve the tightness adjustment of the brake adjuster. When replacing the brake shoes, the rotation direction of the brake adjuster is converted multiple times and the rotation distance is extended. The locking sleeve and the front cover of the brake adjuster only need to be engaged to perform the operation, thereby improving the utilization rate of technical inspection time and effectively ensuring the personal safety, operation safety and driving organization of the inspector.

Description

Technical Field

[0001] The invention relates to daily maintenance auxiliary equipment for railway freight cars, and more particularly to an adjustment tool and an adjustment method for a brake adjuster of a railway freight car. Background Art

[0002] Railway freight cars require regular inspection and maintenance for daily operation. When replacing the brake shoes of railway freight cars, there are no special brake adjuster tensioning tools for C80 type vehicles. The existing brake adjuster adjustment method is that the inspector climbs onto the brake platform and uses a wrench or the brake adjuster of other models of vehicles to adjust the tension. The adjustment efficiency is not high, the tool is not practical, and it is time-consuming and physically demanding. In addition, due to the small space on the brake platform and limited operations, the foot and hand holding parts are unreliable during the tensioning of the brake adjuster on the brake platform. When external force is applied to the brake adjuster, excessive force may cause unstable grasping and stepping, resulting in personal injuries such as falling off the brake platform, bumping against the platform and the edge of the vehicle body, etc. There are relatively serious personal safety hazards, which do not meet the requirements of safe production management and are not conducive to production efficiency and driving organization. Summary of the invention

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an adjustment tool and an adjustment method for a railway freight car brake adjuster. The invention is used for adjusting the freight car brake adjuster, shortens the adjustment time, simplifies the operation process, reduces manual labor intensity, and reduces safety hazards in train operation.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] An adjusting tool for a railway freight car brake adjuster, the adjusting tool comprises a power part, a transmission part and a locking sleeve for locking a front cover of a bidirectional brake shoe clearance adjuster, wherein:

[0006] The locking sleeve includes an elastic part and a rotating part which are connected as one body. The rotating part is driven by a bidirectional rotating gear set. The bidirectional rotating gear set is connected to the power part through a transmission part. The power part is arranged on the outside of the truck body. The opening of the elastic part is an arc-shaped structure. The inner diameter of the arc-shaped structure is larger than the outer diameter of the end cover of the gate adjuster. Clips matching the end cover of the gate adjuster are respectively arranged on both sides of the elastic part. The locking sleeve clamps the end cover of the gate adjuster through the clips of the elastic part.

[0007] Furthermore, it also includes a frame, and the rotating part, the two-way rotating gear set and the transmission part are all arranged on the frame, and the rotating part is rotatable relative to the frame.

[0008] Furthermore, a rotating rail is arranged at the bottom of the rotating part, and the rotating rail is arranged at the same center as the elastic part. A rotating groove corresponding to the rotating rail is arranged on the frame, and openings are also arranged at the opening positions of the rotating part and the frame corresponding to the elastic part.

[0009] Furthermore, the outer side of the rotating part is a gear mechanism that cooperates with the bidirectional gear mechanism. The bidirectional rotating gear set includes a central gear and a plurality of auxiliary gears. The central gear is meshed with the bevel gear. The auxiliary gears are evenly distributed on both sides of the central gear, and the auxiliary gears are meshed with the central gear through gear teeth. The locking sleeve is placed between the auxiliary gears on both sides of the central gear, and a plurality of gear teeth are arranged on the outer side of the locking sleeve. The locking sleeve is meshed with the auxiliary gears on both sides through gear teeth.

[0010] Furthermore, the number of auxiliary gears is an even number, and there are at least two auxiliary gears.

[0011] Furthermore, the angle between the rotating portion and the elastic portion of the locking sleeve does not exceed 120°.

[0012] Furthermore, the transmission part comprises a first transmission rod (1) and a second transmission rod (2) which are perpendicular to each other, the two ends of the first transmission rod (1) are respectively connected to the first right-angle bevel gear (3) and the second right-angle bevel gear (4), the first transmission rod (1) and the second transmission rod (2) are transmitted through the second right-angle bevel gear (4), and one end of the second transmission rod (2) away from the second right-angle bevel gear (4) is connected to the bidirectional rotating gear set (7) through the gear teeth of the bevel gear (9).

[0013] Furthermore, the first transmission rod (1) is connected to the driving device via the first right-angle bevel gear (3).

[0014] A method for adjusting a railway freight car brake adjuster is provided. Based on the above-mentioned adjusting tool for a railway freight car brake adjuster, a locking sleeve of the adjusting tool is clamped on a front cover of the brake adjuster, and a driving device drives the locking sleeve to rotate through a transmission part and a bidirectional rotating gear set to complete the tightness adjustment of the brake adjuster. Specifically, the method comprises the following steps:

[0015] Step 1. Engage the locking sleeve of the adjustment tool for the railway freight car brake adjuster with the front cover of the brake adjuster, and loosen and tighten the brake adjuster by adjusting it in both forward and reverse directions;

[0016] Step 2. After the first right-angle bevel gear is connected to the driving device, the driving device is started. The driving device drives the locking sleeve to rotate through the transmission part and the bidirectional rotating gear set to realize the rotation adjustment of the gate adjuster;

[0017] Step 3. After the brake adjuster is adjusted, remove the adjustment tool and disassemble the drive unit.

[0018] In summary, the invention has the following beneficial effects:

[0019] The present invention provides a transmission part and a right-angle bevel gear to connect a bidirectional rotating gear set, and the brake adjuster is adjusted through the transmission part and the bidirectional rotating gear set, so that multiple conversions of the rotation direction of the brake adjuster and extension of the rotation distance are achieved when replacing the brake shoe, and the operation can be performed by simply engaging the locking sleeve and the front cover of the brake adjuster. The inspector can complete the adjustment of the brake adjuster by standing on the ground, and the operation is simple. By using the present invention to adjust the brake adjuster of a truck, there is no need for the inspector to climb onto the brake platform to perform the operation, thereby reducing safety hazards, reducing the labor intensity of the operating personnel, improving the utilization rate of the technical inspection time, reducing the bumps and injuries of the inspector when adjusting the brake adjuster, and effectively ensuring the personal safety, operation safety and driving organization of the inspector. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural front view of the present invention;

[0021] Figure 2 It is a partial enlarged view of the bidirectional rotating gear set of the present invention;

[0022] Figure 3 It is a partial enlarged view of the driving end of the first transmission rod of the present invention.

[0023] In the figure: 1-first transmission rod, 2-second transmission rod, 3-first right-angle bevel gear, 4-second right-angle bevel gear, 5-frame, 51-rotation groove, 6-locking sleeve, 61-rotation rail, 62-clamping piece, 7-bidirectional rotation gear set, 71-center gear, 72-auxiliary gear, 8-handle, 9-bevel gear. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] It should be noted that, for the sake of convenience, the directions described below are consistent with the directions of the drawings themselves, but do not limit the structure of the present invention.

[0026] like Figures 1 to 3 As shown, the present invention discloses an adjustment tool for a railway freight car brake adjuster, which is used for adjusting the freight car brake adjuster and shortening the adjustment time. The tool comprises a power unit, a transmission unit and a locking sleeve 6 for locking the front cover of a bidirectional brake shoe clearance adjuster, wherein:

[0027] The locking sleeve 6 includes an elastic part and a rotating part connected as one body, the rotating part is driven by a two-way rotating gear set 7, and the two-way rotating gear set 7 is connected to a power part through a transmission part, and the power part is arranged on the outside of the truck body; the opening of the elastic part is an arc-shaped structure, and the opening angle does not exceed 120°. The inner diameter of the arc structure is larger than the outer diameter of the end cover of the gate regulator. The two sides of the elastic part are respectively provided with clamping pieces 62 that match the end cover of the gate regulator. The locking sleeve 6 clamps the end cover of the gate regulator through the clamping piece 62 of the elastic part. In actual application, the locking sleeve 6 is clamped by the clamping piece 62 The front cover of the ST2-250 bidirectional brake shoe clearance adjuster, the rotating part, the bidirectional rotating gear set 7 and the transmission part are all arranged on the frame 5, and the rotating part can be rotatably arranged relative to the frame 5; a rotating rail 61 is arranged at the bottom of the rotating part, and the rotating rail 61 is arranged at the same center as the tensioning part, and a rotating groove 51 corresponding to the rotating rail 61 is arranged on the frame 5, and openings are also arranged at the opening positions of the rotating part and the frame 5 corresponding to the tensioning part; the transmission part is sleeved inside the bearing, and the bearing sleeved on the transmission part is installed on the frame 5, and the frame 5 is provided with a rotating groove 51 for rotating the locking sleeve 6.

[0028] The transmission part includes a first transmission rod 1 and a second transmission rod 2 which are perpendicular to each other. The two ends of the first transmission rod 1 are respectively connected to a first right-angle bevel gear 3 and a second right-angle bevel gear 4. The first transmission rod 1 is connected to a driving device through the first right-angle bevel gear 3. Figure 1 In the illustrated embodiment, the driving device is a handle 8, and the driving device may also use a bidirectional motor or other driving device. The first transmission rod 1 and the second transmission rod 2 are driven by the second right-angle bevel gear 4, and the end of the second transmission rod 2 away from the second right-angle bevel gear 4 is connected to the bidirectional rotating gear set 7 through the gear teeth of the bevel gear 9.

[0029] The outer side of the rotating part is a gear mechanism that cooperates with the bidirectional gear mechanism. The bidirectional rotating gear set 7 includes a central gear 71 and a plurality of auxiliary gears 72. The central gear 71 is meshed with the bevel gear 9. The auxiliary gears 72 are evenly distributed on both sides of the central gear 71, and the auxiliary gears 72 are meshed with the central gear 71 through gear teeth. The number of auxiliary gears 72 is an even number, and there are at least two auxiliary gears 72. Figure 1 In the illustrated embodiment, there are four auxiliary gears 72 , which are distributed on both sides of the central gear 71 , and adjacent auxiliary gears 72 are meshed with each other through gear teeth.

[0030] The locking sleeve 6 is placed between the auxiliary gears 72 on both sides of the central gear 71, and a plurality of gear teeth are arranged on the outer side of the locking sleeve 6, and the locking sleeve 6 is meshed with the auxiliary gears 72 on both sides through the gear teeth; the clamping piece 62 of the locking sleeve 6 is placed between the 6 reinforcing ribs of the front cover of the gate adjuster, that is, each clamping piece 62 can fit with two reinforcing ribs; a rotating rail 61 for rotating the locking sleeve 6 is arranged on one side of the locking sleeve 6 that is close to the frame 5, and the rotating rail 61 is placed in the rotating groove 51; when the locking sleeve 6 is rotated driven by the auxiliary gear 72, it can ensure that at least one gear tooth of the auxiliary gear 72 can mesh with the gear teeth on the outer side of the locking sleeve 6, and the locking sleeve can be rotated without derailing under the action of the auxiliary gear 72, the rotating rail 61 and the rotating groove 51, so that the locking sleeve of the gate adjuster loosening tool and the gate adjuster cylindrical screw can be quickly inserted without obstruction, Figure 1 In the illustrated embodiment, when the center gear 71 rotates clockwise driven by the second transmission rod 2, the two auxiliary gears 72 on the left and right sides of the center gear 71 close to the center gear 71 rotate counterclockwise, and the two auxiliary gears 72 on the left and right sides of the center gear 71 close to the locking sleeve 6 rotate clockwise, driving the locking sleeve 6 to rotate counterclockwise, and the gate adjuster completes the rotation adjustment under the action of the bidirectional rotating gear set 7; when the center gear 71 rotates counterclockwise driven by the second transmission rod 2, the reverse rotation of the gear set gears can realize the reverse rotation adjustment of the gate adjuster, and the operation is convenient and quick.

[0031] The present invention also discloses a method for adjusting a railway freight car brake adjuster. Based on the above-mentioned adjusting tool for the railway freight car brake adjuster, a locking sleeve 6 of the adjusting tool is clamped on the front cover of the brake adjuster, and a driving device drives the locking sleeve 6 to rotate through a transmission part and a bidirectional rotating gear set 7 to complete the tightness adjustment of the brake adjuster. Specifically, the method comprises the following steps:

[0032] Step 1. Engage the locking sleeve 6 of the adjustment tool for the railway freight car brake adjuster with the front cover of the brake adjuster, and loosen and tighten the brake adjuster by adjusting it in both forward and reverse directions;

[0033] Step 2. After the first right-angle bevel gear 3 is connected to the driving device, the driving device is started, and the driving device drives the locking sleeve 6 to rotate through the transmission part and the bidirectional rotating gear set 7 to realize the rotation adjustment of the gate adjuster;

[0034] Step 3. After the brake adjuster is adjusted, remove the adjustment tool and disassemble the drive unit.

[0035] The present invention adjusts the brake adjuster through the transmission part and the bidirectional rotating gear set, and realizes multiple conversions of the rotation direction of the brake adjuster and extension of the rotation distance when replacing the brake shoe. The operation can be carried out by simply engaging the locking sleeve and the front cover of the brake adjuster. The inspector can complete the adjustment of the brake adjuster while standing on the ground, thereby reducing the labor intensity of the operating personnel and improving the utilization rate of the technical inspection time.

[0036] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An adjustment tool for a railway freight car brake adjuster, characterized in that: The adjusting tool comprises a power unit, a transmission unit and a locking sleeve (6) for locking a front cover of a bidirectional brake shoe clearance adjuster, wherein: The locking sleeve (6) comprises an elastic part and a rotating part connected as one body, the rotating part is driven by a bidirectional rotating gear set (7), the bidirectional rotating gear set (7) is connected to a power part via a transmission part, and the power part is arranged on the outside of the truck body; the opening of the elastic part is an arc-shaped structure, the inner diameter of the arc-shaped structure is larger than the outer diameter of the end cover of the brake regulator, and clamping pieces (62) matching the end cover of the brake regulator are respectively arranged on both sides of the elastic part, and the locking sleeve (6) clamps the end cover of the brake regulator through the clamping piece (62) of the elastic part; It also includes a frame (5), the rotating part, the bidirectional rotating gear set (7) and the transmission part are all arranged on the frame (5), and the rotating part is arranged to rotate relative to the frame (5); A rotating rail (61) is arranged at the bottom of the rotating part, and the rotating rail (61) is arranged at the same center as the elastic part. A rotating groove (51) corresponding to the rotating rail (61) is arranged on the frame (5), and openings are also arranged at the rotating part and the frame (5) corresponding to the opening of the elastic part.

2. The adjusting tool for railway freight car brake adjuster according to claim 1, characterized in that: The outer side of the rotating part is a gear mechanism that cooperates with the bidirectional gear mechanism. The bidirectional rotating gear set (7) includes a central gear (71) and a plurality of auxiliary gears (72). The central gear (71) is meshed with the bevel gear. The auxiliary gears (72) are evenly distributed on both sides of the central gear (71), and the auxiliary gears (72) are meshed with the central gear (71) through gear teeth. The locking sleeve (6) is arranged between the auxiliary gears (72) on both sides of the central gear (71). A plurality of gear teeth are arranged on the outer side of the locking sleeve (6), and the locking sleeve (6) is meshed with the auxiliary gears (72) on both sides through gear teeth.

3. The adjusting tool for railway freight car brake adjuster according to claim 2, characterized in that: The number of the auxiliary gears (72) is an even number, and there are at least two auxiliary gears (72).

4. The adjusting tool for railway freight car brake adjuster according to claim 1, characterized in that: The opening angles of the rotating part and the elastic part of the locking sleeve (6) do not exceed 120°.

5. The adjusting tool for railway freight car brake adjuster according to claim 1, characterized in that: The transmission part comprises a first transmission rod (1) and a second transmission rod (2) which are perpendicular to each other, the two ends of the first transmission rod (1) are respectively connected to a first right-angle bevel gear (3) and a second right-angle bevel gear (4), the first transmission rod (1) and the second transmission rod (2) are driven by the second right-angle bevel gear (4), and one end of the second transmission rod (2) away from the second right-angle bevel gear (4) is meshed with a bidirectional rotating gear set (7) through the gear teeth of a bevel gear (9).

6. The adjusting tool for railway freight car brake adjuster according to claim 5, characterized in that: The first transmission rod (1) is connected to a driving device via a first right-angle bevel gear (3).

7. A method for adjusting a railway freight car brake regulator, based on the adjusting tool for railway freight car brake regulator according to any one of the above claims, characterized in that: The locking sleeve (6) of the adjustment tool is clamped on the front cover of the gate adjuster, and the driving device drives the locking sleeve to rotate through the transmission part and the two-way rotating gear set (7) to complete the tightness adjustment of the gate adjuster, which specifically includes the following steps: Step 1. Engage the locking sleeve (6) of the adjustment tool for the railway freight car brake adjuster with the front cover of the brake adjuster, and loosen and tighten the brake adjuster by adjusting it in both forward and reverse directions; Step 2. After the first right-angle bevel gear (3) is connected to the driving device, the driving device is started, and the driving device drives the locking sleeve (6) to rotate through the transmission part and the bidirectional rotating gear set (7), thereby realizing the rotation adjustment of the gate adjuster; Step 3. After the brake adjuster is adjusted, remove the adjustment tool and disassemble the drive unit.

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