Railway vehicle bogie swing bolster mechanism

Abstract

The utility model relates to the technical field of bogie swing bolsters, in particular to a railway vehicle bogie swing bolster mechanism which comprises a swing bolster body, a main body mechanism is fixed on the swing bolster body, an inserting rod is fixed on the swing bolster body, a lower center plate is clamped on the inserting rod, a center plate pin is installed on the lower center plate, and the center plate pin is fixed on the main body mechanism. A center plate wear-resistant plate is sleeved on the center plate pin, a clamping hole is arranged on the lower center plate, a fixing mechanism is clamped at the position of the clamping hole, the fixing mechanism comprises a clamping rod and a connecting rod, the clamping rod is fixed on the swing bolster body, the connecting rod is fixed on the clamping rod, a pressing plate is sleeved on the clamping rod, a sleeve rod and a fixing ring are mounted on the pressing plate, and the sleeve rod is sleeved on the fixing ring. A positioning block is rotationally arranged in the sleeve rod, the positioning block is in threaded connection with the insertion rod, an insertion hole is formed in the pressing plate, and a clamping block is installed on the pressing plate; the lower center plate is clamped on the inserting rod, the pressing plate slides to enable the inserting rod to be clamped with the pressing plate, and after the clamping block is clamped to the lower center plate, the positioning block is rotated to be in threaded connection with the inserting rod to limit the pressing plate.

Description

Technical Field

[0001] The utility model relates to a bolster, in particular to a bolster mechanism of a railway vehicle bogie, belonging to the technical field of bogie bolsters. Background Technique

[0002] Various parameters of the bogie also directly determine the stability of the vehicle and the riding comfort of the vehicle. With the installation and use of new bogies and the application of various advanced technologies, the vehicle operation is becoming more and more stable. The bolster is a connecting device between the car body of a railway freight gondola car and the bogie frame, mainly bearing and transmitting vertical force, lateral force and longitudinal force.

[0003] However, in railway freight cars, the bolsters of most bogies are not cast integrally with the center plates of the lower bolster, but are fastened together by bolts. Insufficient pre-tightening force of the fixing bolts of the center plates of the lower bolster or poor contact between the center plates of the lower bolster and the bolster will cause slight sliding misalignment of the center plates of the lower bolster during the traction and braking of the train, resulting in the bolts changing from a vertical state to an inclined state, thus affecting the firmness of the fixing of the center plates of the lower bolster. Content of the Utility Model

[0004] The purpose of the utility model is to provide a bolster mechanism of a railway vehicle bogie to solve the above problems. The center plate of the lower bolster is placed on the inserting rod, and the pressing plate is rotated and slid, so that the inserting rod can be engaged with the pressing plate. After the clamping block is engaged with the center plate of the lower bolster, the positioning block is rotated to be threadedly connected with the inserting rod, so as to facilitate the limiting of the pressing plate.

[0005] The utility model realizes the above purpose through the following technical solutions. A bolster mechanism of a railway vehicle bogie includes a bolster body. A main body mechanism is fixed on the bolster body. The bolster body is fixedly connected with a plurality of inserting rods. A center plate of the lower bolster is clamped and installed on the inserting rods. A center plate pin is installed on the center plate of the lower bolster. A center plate wear-resistant disc is sleeved on the center plate pin. A clamping hole is arranged on the center plate of the lower bolster. A fixing mechanism is clamped and installed at the clamping hole position. The fixing mechanism includes a clamping rod and a connecting rod. A plurality of clamping rods are fixedly installed on the bolster body. The connecting rod is fixedly connected to the clamping rod. A pressing plate is sleeved on the clamping rod. A sleeve rod and a fixing ring are fixedly installed on the pressing plate. A positioning block is rotatably installed in the sleeve rod. The positioning block is threadedly connected with the inserting rod. A jack is arranged at the bottom end of the pressing plate. A clamping block is fixedly installed on the pressing plate. The clamping block is clamped and connected with the center plate of the lower bolster.

[0006] Preferably, the pressing plate is slidably connected with the clamping rod, the fixing ring is rotatably connected with the connecting rod, and the diameter of the connecting rod is equal to the inner diameter of the fixing ring.

[0007] Preferably, an inserting rod is clamped and installed at the jack position. The pressing plate is in contact with the top end of the center plate of the lower bolster. The diameter of the inserting rod is equal to the diameter of the jack.

[0008] Preferably, the top end of the positioning block is arranged in a regular hexagon structure, the bottom end of the positioning block is arranged in a cylindrical structure, and the diameter of the bottom end of the positioning block is larger than the inner diameter of the top end of the sleeve rod.

[0009] Preferably, the pressing plate is snap-fitted with the lower center plate, and the part of the pressing plate in contact with the lower center plate is arranged in an arc surface structure.

[0010] Preferably, the insertion rod penetrates through the inner wall of the lower center plate, and the lower center plate is in contact with the top end of the bolster body.

[0011] Preferably, several of the card holes are respectively located at the four corner parts of the lower center plate, and a card block is snap-fitted and installed at the card hole part.

[0012] Preferably, the center plate pin is located at the center part of the lower center plate, and the center plate wear-resistant disc is snap-fitted with the lower center plate.

[0013] Preferably, the main body mechanism includes a side bearing box and a fulcrum seat. A side bearing box is fixedly installed on the bolster body, and a fulcrum seat is fixed on the bolster body.

[0014] Preferably, the side bearing box is installed at the top end of the bolster body, and the two side bearing boxes are symmetrically arranged.

[0015] The beneficial effect of the present utility model is that when installing the lower center plate, the operator can first align the through holes arranged at the four corner parts of the lower center plate with the insertion rods fixed on the bolster body. When the lower center plate is snap-fitted and installed on the side wall of the insertion rod, the bottom end of the lower center plate can be made to contact the bolster body. Then, after moving the pressing plate upward, making the fixing ring installed at its top end abut against the connecting rod and then rotating the pressing plate, when the end of the pressing plate rotates to align with the card slot provided on the lower center plate, the pressing plate can be moved downward again. When the pressing plate slides along the side wall of the card rod, the jack provided on the pressing plate can be made to be snap-fitted with the insertion rod. When the insertion rod is located inside the pressing plate, it abuts against the positioning block arranged inside the sleeve rod, thereby making the positioning block slide upward. Using a tool to rotate the positioning block, it can be threadedly installed on the side wall of the insertion rod. When the bottom end of the positioning block abuts against the pressing plate, the pressing plate can be fixed on the top of the lower center plate, thus facilitating the limiting of the lower center plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the connection structure of the bolster body and the side bearing box of the present utility model;

[0018] Figure 3 is Figure 2 the enlarged schematic diagram of part A shown in

[0019] Figure 4 Schematic diagram of the connection structure of the clamping rod and the pressing plate of the present utility model;

[0020] Figure 5 is Figure 4 Enlarged schematic diagram of part B shown;

[0021] Figure 6 Schematic diagram of the connection structure of the sleeve rod and the positioning block of the present utility model;

[0022] Figure 7 is Figure 6 Enlarged schematic diagram of part C shown.

[0023] In the figure: 1. bolster body; 2. main body mechanism; 201. side bearing box; 202. fulcrum seat; 3. center plate; 4. center plate wear-resistant disc; 5. center plate pin; 6. fixing mechanism; 601. clamping rod; 602. connecting rod; 603. pressing plate; 604. sleeve rod; 605. positioning block; 606. fixing ring; 607. jack; 608. clamping block; 7. inserting rod; 8. clamping hole. Specific implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figure 1-7 shown, a bolster mechanism of a railway vehicle bogie, including a bolster body 1, a main body mechanism 2 is fixed on the bolster body 1, several inserting rods 7 are fixedly connected to the bolster body 1, a center plate 3 is snap-fitted on the inserting rods 7, a center plate pin 5 is installed on the center plate 3, a center plate wear-resistant disc 4 is sleeved on the center plate pin 5, a clamping hole 8 is provided on the center plate 3, a fixing mechanism 6 is snap-fitted at the position of the clamping hole 8, the fixing mechanism 6 includes a clamping rod 601 and a connecting rod 602, several clamping rods 601 are fixedly installed on the bolster body 1, a connecting rod 602 is fixedly connected to the clamping rod 601, a pressing plate 603 is sleeved on the clamping rod 601, a sleeve rod 604 and a fixing ring 606 are fixedly installed on the pressing plate 603, a positioning block 605 is rotatably installed in the sleeve rod 604, the positioning block 605 is threadedly connected with the inserting rod 7, a jack 607 is provided at the bottom end of the pressing plate 603, a clamping block 608 is fixedly installed on the pressing plate 603, and the clamping block 608 is snap-fitted with the center plate 3.

[0026] As a technical optimization solution of the present utility model, the pressing plate 603 is slidably connected to the clamping rod 601, the fixed ring 606 is rotatably connected to the connecting rod 602, the diameter of the connecting rod 602 is equal to the inner diameter of the fixed ring 606, and the clamping rod 601 limits the pressing plate 603, so that the pressing plate 603 can only slide along the side wall of the clamping rod 601.

[0027] As a technical optimization solution of the present utility model, a plug rod 7 is snap-fitted at the position of the jack 607, the pressing plate 603 is in contact with the top end of the lower bolster 3, the diameter of the plug rod 7 is equal to the diameter of the jack 607, and when the plug rod 7 is snap-fitted with the pressing plate 603, the pressing plate 603 can be in contact with the lower bolster 3.

[0028] As a technical optimization solution of the present utility model, the top end of the positioning block 605 is arranged in a regular hexagon structure, the bottom end of the positioning block 605 is arranged in a cylindrical structure, and the diameter of the bottom end of the positioning block 605 is larger than the inner diameter of the top end of the sleeve rod 604. When the plug rod 7 is located inside the pressing plate 603, the positioning block 605 can be located at the top of the sleeve rod 604.

[0029] As a technical optimization solution of the present utility model, the pressing plate 603 is snap-fitted with the lower bolster 3, and the contact part between the pressing plate 603 and the lower bolster 3 is arranged in an arc surface structure. When the pressing plate 603 is snap-fitted with the lower bolster 3, the lower bolster 3 can be limited.

[0030] As a technical optimization solution of the present utility model, the plug rod 7 penetrates through the inner wall of the lower bolster 3, and the lower bolster 3 is in contact with the top end of the bolster body 1. The plug rod 7 limits the lower bolster 3, which can facilitate the preliminary limitation of the lower bolster 3.

[0031] As a technical optimization solution of the present utility model, several card holes 8 are respectively located at the four corner parts of the lower bolster 3, and a card block 608 is snap-fitted at the position of the card hole 8. When the card block 608 is located at the position of the card hole 8, the pressing plate 603 can be limited.

[0032] As a technical optimization solution of the present utility model, the bolster pin 5 is located at the center of the lower bolster 3, and the bolster wear plate 4 is snap-fitted with the lower bolster 3. Sleeving the bolster wear plate 4 on the side wall of the bolster pin 5 can facilitate its installation.

[0033] As a technical optimization solution of the present utility model, the main body mechanism 2 includes a side bearing box 201 and a fulcrum seat 202. The side bearing box 201 is fixedly installed on the bolster body 1, and the fulcrum seat 202 is fixed on the bolster body 1. Through the fulcrum seat 202, it is convenient for the operator to install the fixed lever.

[0034] As a technical optimization solution of the present utility model, the side bearing box 201 is installed at the top of the bolster body 1, and the two side bearing boxes 201 are symmetrically arranged. The setting of the side bearing box 201 can facilitate the subsequent installation of the elastic side bearing by the operator.

[0035] When the present utility model is in use, first, when the operator installs the center plate 3, the through holes provided at the four corner parts of the center plate 3 can be aligned with the insertion rods 7 fixed on the bolster body 1. After the center plate 3 is snap-fitted onto the side wall of the insertion rod 7, the bottom end of the center plate 3 can be in contact with the bolster body 1. Then, after the pressing plate 603 is lifted, the fixing ring 606 installed at its top end can be made to abut against the connecting rod 602 and then the pressing plate 603 is rotated. When the end of the pressing plate 603 rotates to align with the card slot provided on the center plate 3, the pressing plate 603 can be lowered again. When the pressing plate 603 slides along the side wall of the clamping rod 601, the jack 607 provided on the pressing plate 603 can be engaged with the insertion rod 7. When the insertion rod 7 is located inside the pressing plate 603, it abuts against the positioning block 605 provided inside the sleeve rod 604, thereby causing the positioning block 605 to slide upward. Using a tool to rotate the positioning block 605, it can be threadedly installed on the side wall of the insertion rod 7. When the bottom end of the positioning block 605 abuts against the pressing plate 603, the pressing plate 603 can be fixed on the top of the center plate 3, thus facilitating the limitation of the center plate 3; after the center plate 3 is fixed, the center plate wear plate 4 is sleeved on the center plate pin 5 installed on the center plate 3. The main function of the center plate 3 is to support the car body and ensure the stability and safety of the vehicle during operation; the center plate wear plate 4 is installed between the upper center plate and the center plate 3 and has good wear resistance. Its main function is to solve the problem of severe wear of the upper and lower center plates that has long troubled the vehicle maintenance department, and at the same time contribute to the stability of the relative rotational resistance moment value of the car body with respect to the bogie; then the elastic side bearing is installed in the side bearing box 201 fixed at the top of the bolster body 1. Through structures such as the limiting plate and the limiting bolt, it can be ensured that the elastic side bearing is restricted in the vertical direction but cannot be separated from the side bearing box 201, thus facilitating the limitation of the elastic side bearing.

[0036] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0037] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bolster mechanism for a railway vehicle bogie, comprising a bolster body (1), characterized in that: A main body mechanism (2) is fixed on the bolster body (1). A plurality of insertion rods (7) are fixedly connected to the bolster body (1). A center plate (3) is snap-fitted and installed on the insertion rods (7). A center plate pin (5) is installed on the center plate (3). A center plate wear-resistant disc (4) is sleeved on the center plate pin (5). A clamping hole (8) is provided on the center plate (3). A fixing mechanism (6) is snap-fitted and installed at the clamping hole (8). The fixing mechanism (6) includes a clamping rod (601) and a connecting rod (602). A plurality of clamping rods (601) are fixedly installed on the bolster body (1). The connecting rod (602) is fixedly connected to the clamping rod (601). A pressing plate (603) is sleeved on the clamping rod (601). A sleeve rod (604) and a fixing ring (606) are fixedly installed on the pressing plate (603). A positioning block (605) is rotatably installed in the sleeve rod (604). The positioning block (605) is threadedly connected to the insertion rod (7). An insertion hole (607) is provided at the bottom end of the pressing plate (603). A clamping block (608) is fixedly installed on the pressing plate (603). The clamping block (608) is snap-fitted and connected to the center plate (3).

2. The bolster mechanism of a railway vehicle bogie according to claim 1, characterized in that: The pressing plate (603) is slidably connected to the clamping rod (601). The fixing ring (606) is rotatably connected to the connecting rod (602). The diameter of the connecting rod (602) is equal to the inner diameter of the fixing ring (606).

3. The bolster mechanism of the bogie of a rail vehicle according to claim 1, characterized in that: The insertion rod (7) is snap-fitted and installed at the insertion hole (607). The pressing plate (603) is in contact with the top end of the center plate (3). The diameter of the insertion rod (7) is equal to the diameter of the insertion hole (607).

4. The bolster mechanism of a railway vehicle bogie according to claim 1, characterized in that: The top end of the positioning block (605) is arranged in a regular hexagon structure. The bottom end of the positioning block (605) is arranged in a cylindrical structure. And the diameter of the bottom end of the positioning block (605) is greater than the inner diameter of the top end of the sleeve rod (604).

5. The bolster mechanism of a railway vehicle bogie according to claim 1, characterized in that: The pressing plate (603) is snap-fitted and connected to the center plate (3). And the part of the pressing plate (603) in contact with the center plate (3) is arranged in an arc surface structure.

6. The bolster mechanism of a railway vehicle bogie according to claim 1, characterized in that: The insertion rod (7) penetrates through the inner wall of the center plate (3). And the center plate (3) is in contact with the top end of the bolster body (1).

7. The bolster mechanism of a railway vehicle bogie according to claim 1, characterized in that: A plurality of the clamping holes (8) are respectively located at the four corner parts of the center plate (3). The clamping block (608) is snap-fitted and installed at the clamping hole (8).

8. The bolster mechanism of a rail vehicle bogie according to claim 1, characterized in that: The center plate pin (5) is located at the center part of the center plate (3). The center plate wear-resistant disc (4) is snap-fitted and connected to the center plate (3).

9. The bolster mechanism of a railway vehicle bogie according to claim 1, characterized in that: The main body mechanism (2) includes a side bearing box (201) and a fulcrum seat (202). The side bearing box (201) is fixedly installed on the bolster body (1). The fulcrum seat (202) is fixed on the bolster body (1).

10. The bolster mechanism of a railway vehicle bogie according to claim 9, characterized in that: The side bearing box (201) is installed on the top end of the bolster body (1). And the two side bearing boxes (201) are symmetrically arranged.

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