Coupler yoke additionally provided with tail groove

Abstract

The utility model discloses a coupler yoke added with a tail groove, and relates to the technical field of coupler yokes, the coupler yoke comprises a coupler yoke main body and a buffer mounting through groove arranged at the end part of the coupler yoke main body, a connecting arc groove is arranged at the corner of the inner wall of the buffer mounting through groove, the connecting arc groove is incompletely circular, and the buffer mounting through groove is arranged in the buffer mounting through groove. And an arc slot is formed in the middle of the side wall of the buffer mounting through groove. According to the coupler yoke, the connecting arc groove is formed in the corner of the buffer mounting through groove of the coupler yoke body, and the arc open groove is formed in the middle of the side wall of the buffer mounting through groove, so that the stress on the coupler yoke at the corner of the buffer mounting through groove can be obviously reduced; the breakage risk at the corner of the buffer installation through groove pipe on the coupler yoke body is effectively reduced, and therefore the service life of the coupler yoke body is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of hook tail frames, in particular to a hook tail frame with a tail groove added. Background Art

[0002] The hook tail frame is an important component of the coupler buffer device. It is a key part for installing the follower plate and buffer and bearing the traction of the train vehicle. The railway vehicles are connected by the coupler, and the hook tail of the coupler is connected to the hook tail frame through the hook tail pin, thereby ensuring the connection between the train vehicles, forming a train transportation and transmitting traction.

[0003] In the prior art, one end of the hook tail frame has a through slot for installing the buffer, and the other end has a through slot for installing the follower plate. The follower plate is limited on the hook tail frame by a pin shaft, and the buffer is directly limited by the inner wall of the through slot on the hook tail frame, so that the hook tail frame can bear and connect the follower plate and the buffer.

[0004] At present, the inner wall corners of the through slot for installing the buffer on the hook tail frame are generally transitioned at right angles. In actual use, when the tensile force on the buffer is transmitted to the through slot position on the hook tail frame where the buffer is installed, the force intensity at the corner of the through slot is relatively large, resulting in a greater risk of fracture there, which affects the service life of the hook tail frame. For this reason, a hook tail frame with an additional tail groove is proposed. Utility Model Content

[0005] The utility model aims to provide a hook tail frame with an additional tail groove to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hook tail frame with an additional tail groove, comprising a hook tail frame main body and a buffer installation groove opened at the end of the hook tail frame main body, a connecting arc groove is opened at the corner of the inner wall of the buffer installation groove, and the connecting arc groove is an incomplete circle, and a circular arc groove is opened in the middle of the side wall of the buffer installation groove.

[0007] Preferably, one end of the hook tail frame body away from the buffer mounting through slot is provided with a slave plate mounting through slot connected to the buffer mounting through slot, and the slave plate mounting through slot is used for positioning the slave plate.

[0008] Preferably, the front and back sides of the buffer mounting slot are both provided with pin shaft mounting strip holes which are connected to the slave plate mounting slot, and the pin shaft mounting strip holes are used for positioning the hook tail pin.

[0009] Preferably, an auxiliary stopper which can move axially along the pin shaft mounting strip hole is movably provided inside the pin shaft mounting strip hole, and an arc-shaped slot is provided on one side of the auxiliary stopper facing the buffer mounting through slot.

[0010] Preferably, the auxiliary stop block is fixedly connected to a locking plate on one side away from the plate mounting slot, one end of the locking plate extends to the outside toward the side of the auxiliary stop block away from the buffer mounting slot, and a fixing plate is fixedly connected to the outer wall of the hook tail frame body and at positions on both sides of the pin shaft mounting strip hole away from one end of the buffer mounting slot, a clamping bolt is threadedly inserted into the outer wall of the fixing plate, and the end face of the clamping bolt can pass through the inner side of the fixing plate and fit against the side wall of the locking plate.

[0011] Preferably, a cushion block is provided on the side of the auxiliary stopper away from the arc-shaped groove, and mortise grooves are provided on one side of the cushion block and the auxiliary stopper. A mortise block is fixedly connected to the side of the cushion block facing the auxiliary stopper, and the mortise block can be movably plugged into the mortise groove.

[0012] Technical effects and advantages of the utility model:

[0013] The utility model arranges connecting arc grooves at the corners of the buffer installation slot of the hook tail frame body, and cooperates with the arc grooves arranged in the middle of the side walls of the buffer installation slot, so that the force on the hook tail frame at the corners of the buffer installation slot can be significantly reduced, thereby effectively reducing the risk of breakage at the corners of the buffer installation slot tube on the hook tail frame body, thereby effectively extending the service life of the hook tail frame body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the front structure of the utility model.

[0016] Figure 3 For this utility model Figure 2 Schematic diagram of the local enlarged structure at point A.

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the auxiliary stopper of the utility model.

[0018] In the figure: 100, hook tail frame body; 101, buffer installation slot; 102, slave plate installation slot; 103, connecting arc slot; 104, pin shaft installation strip hole; 105, fixing plate; 106, clamping bolt; 107, arc slot; 200, auxiliary stopper; 201, arc slot; 202, cushion block; 203, mortise slot; 204, mortise block; 205, locking plate. DETAILED DESCRIPTION

[0019] 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 in 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.

[0020] The utility model provides Figure 1-4 The hook tail frame with an additional tail groove shown in the figure comprises a hook tail frame body 100 and a buffer installation groove 101 opened at the end of the hook tail frame body 100. The buffer installation groove 101 corresponds to the buffer to facilitate the installation and positioning of the buffer. A connecting arc groove 103 is opened at the corner of the inner wall of the buffer installation groove 101. The connecting arc groove 103 is incompletely circular. A circular arc groove 107 is opened in the middle of the side wall of the buffer installation groove 101. Figure 1 and Figure 2 As shown, by adding a connecting arc groove 103 at the corner of the buffer installation slot 101 for transition, and further cooperating with the buffer installation slot 101 and the connecting arc groove 103 at the middle position of the inner wall on the same side of the connecting arc groove 103, the force on the buffer at the corner of the tail of the buffer installation slot 101 can be significantly reduced, eliminating the problem that the corner of the tail of the buffer installation slot 101 is difficult to withstand a large load due to its weak rigidity, thereby reducing the risk of easy breakage at the corner of the tail of the buffer installation slot 101 on the hook tail frame body 100, which helps to extend the service life of the hook tail frame body 100; secondly, the end of the hook tail frame body 100 away from the buffer installation slot 101 is provided with a 1 is connected to the slave plate mounting groove 102, and the slave plate mounting groove 102 is used for positioning the slave plate. The end of the slave plate is extended into the slave plate mounting groove 102 of the hook tail frame body 100 for positioning, so that both the slave plate and the buffer can be positioned on the hook tail frame body 100; further, the front and back sides of the buffer mounting groove 101 are provided with pin shaft mounting strip holes 104 connected to the slave plate mounting groove 102, and the pin shaft mounting strip holes 104 are used for positioning the hook tail pin. Through the setting of the pin shaft mounting strip holes 104, the hook tail pin vertically inserted into the slave plate can be inserted into the slave plate from the pin shaft mounting strip holes 104, so as to realize the limiting between the slave plate and the hook tail frame body 100, thereby achieving the purpose of fixing the slave plate on the hook tail frame body 100.

[0021] In some embodiments, an auxiliary stopper 200 is movably provided inside the pin shaft mounting hole 104 and can move axially along the pin shaft mounting hole 104. An arc-shaped slot 201 is provided on the side of the auxiliary stopper 200 facing the buffer mounting slot 101. In the prior art, the hook tail pin is directly inserted into the pin shaft mounting hole 104 to limit the position between the hook tail frame body 100 and the slave plate. After long-term use, the hook tail pin will wear the inner end of the pin shaft mounting hole 104, which will increase the length of the pin shaft mounting hole 104, easily leading to the displacement of the installation position of the slave plate on the hook tail frame body 100, resulting in an increase in the positioning error, thereby affecting the subsequent use of the hook tail frame body 100. The pin shaft mounting hole 104 is directly formed on the hook tail frame body 100, which makes it difficult to repair the pin shaft mounting hole 104 in the future. Generally, the entire hook tail frame body 100 is directly replaced, which increases the cost of use. Therefore, in this embodiment, the auxiliary stopper 200 is arranged in conjunction with the arc-shaped slot 201 to fit and block the outer wall of the hook tail pin inserted into the pin shaft mounting hole 104, so that the force on the hook tail pin acts on the auxiliary stopper 200. When the arc-shaped slot 201 of the auxiliary stopper 200 is worn due to the influence of the force on the hook tail pin, it can be replaced separately, which not only increases the convenience of subsequent maintenance, but also reduces the maintenance cost, and has high practicality.

[0022] Furthermore, the auxiliary stopper 200 is fixedly connected with a locking plate 205 on one side away from the plate mounting slot 102, and one end of the locking plate 205 extends to the outside toward the auxiliary stopper 200 away from the buffer mounting slot 101, and the outer wall of the hook tail frame body 100 and the positions on both sides of the pin shaft mounting strip hole 104 away from the buffer mounting slot 101 are fixedly connected with a fixing plate 105, and the outer wall of the fixing plate 105 is threadedly inserted with a clamping bolt 106, and the end surface of the clamping bolt 106 can penetrate the fixing plate 1 05 and fits with the inner side of the locking plate 205. Through the coordinated use of the fixing plate 105, the clamping bolt 106 and the locking plate 205, the position of the auxiliary stop block 200 in the pin shaft mounting strip hole 104 can be manually adjusted. By rotating the clamping bolt 106 and moving it inward, the clamping bolt 106 squeezes the outer wall of the locking plate 205 to lock and fix the position of the auxiliary stop block 200. The position of the auxiliary stop block 200 in the pin shaft mounting strip hole 104 can be adjusted to better meet the usage requirements.

[0023] Moreover, a pad 202 is provided on the side of the auxiliary stopper 200 away from the arc-shaped groove 201, and a tenon groove 203 is provided on one side of the pad 202 and the auxiliary stopper 200. A tenon block 204 is fixedly connected to the side of the pad 202 facing the auxiliary stopper 200, and the tenon block 204 can be movably plugged with the tenon groove 203. The pad 202 and the tenon groove 203 are both matched with the tenon groove 203, and the pad 202 is matched with the tenon groove 203. The matching mortise and tenon block 204 allows the overall length of the auxiliary block 200 to be adjusted between the auxiliary block 200 and the inner wall of the pin shaft mounting hole 104 by adding a corresponding number of pads 202, thereby ensuring the stability of the force applied to the auxiliary block 200 in the pin shaft mounting hole 104. As a result, when the arc-shaped groove 201 on the auxiliary block 200 is worn, the width difference can be compensated by adding pads 202, which helps to improve the flexibility and convenience of subsequent maintenance operations.

[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hook tail frame with an additional tail groove, comprising a hook tail frame body (100) and a buffer installation through groove (101) opened at the end of the hook tail frame body (100), characterized in that: A connecting arc groove (103) is provided at a corner of the inner wall of the buffer installation through groove (101), the connecting arc groove (103) is in an incomplete circle, and a circular arc groove (107) is provided in the middle of the side wall of the buffer installation through groove (101).

2. A hook tail frame with an additional tail groove according to claim 1, characterized in that: One end of the hook tail frame body (100) away from the buffer installation slot (101) is provided with a slave plate installation slot (102) connected to the buffer installation slot (101), and the slave plate installation slot (102) is used for positioning the slave plate.

3. A hook tail frame with an additional tail groove according to claim 2, characterized in that: The front and back sides of the buffer mounting slot (101) are both provided with pin shaft mounting holes (104) that are connected to the slave plate mounting slot (102), and the pin shaft mounting holes (104) are used for positioning the hook tail pin.

4. A hook tail frame with an additional tail groove according to claim 3, characterized in that: An auxiliary stopper (200) is movably provided inside the pin shaft mounting hole (104) and is movable along the axial direction of the pin shaft mounting hole (104). The auxiliary stopper (200) is provided with an arc-shaped slot (201) on one side facing the buffer mounting slot (101).

5. A hook tail frame with an additional tail groove according to claim 4, characterized in that: The auxiliary stopper (200) is fixedly connected to a locking plate (205) on one side away from the plate mounting slot (102); one end of the locking plate (205) extends to the outside of the auxiliary stopper (200) away from the buffer mounting slot (101); and a fixing plate (105) is fixedly connected to the outer wall of the hook tail frame body (100) and located on both sides of the pin shaft mounting strip hole (104) away from one end of the buffer mounting slot (101); a clamping bolt (106) is threadedly inserted into the outer wall of the fixing plate (105); and the end surface of the clamping bolt (106) can pass through the inner side of the fixing plate (105) and fit with the side wall of the locking plate (205).

6. A hook tail frame with an additional tail groove according to claim 4, characterized in that: A cushion block (202) is provided on the side of the auxiliary stopper (200) facing away from the arc-shaped slot (201); a tenon slot (203) is provided on one side of the cushion block (202) and the auxiliary stopper (200); a tenon block (204) is fixedly connected to the side of the cushion block (202) facing the auxiliary stopper (200); and the tenon block (204) can be movably plugged into the tenon slot (203).

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