A new type of rail vehicle drive device overhauls car axle fixing tool

Abstract

The utility model relates to a novel track vehicle drive device overhaul axle fixing frock, its characterized in that: including bottom plate, support frame, clamping seat and V type support block, the top of bottom plate is opened with a plurality of connection holes for installing support frame and clamping seat, the support frame is the placement site of big gear, it has is by the support base plate for fixing on the bottom plate and the first support vertical board and the second support vertical board welded on the support base plate, the second support vertical board be provided with two, first support vertical board with two second support vertical board appear one before and after setting, the support base plate between first support vertical board and second support vertical board and two second support vertical board between the second support vertical board set up have the T shape gap, the utility model fixes after the axle is dismantled to the axle, need not hoist axle, can complete installation induction heater, and can take down axle parts, can effectively simplify the operation, reduce the operation time.

Description

Technical Field

[0001] This utility model relates to the field of vehicle gear drive device disassembly technology, specifically to a novel overhaul axle fixing fixture for rail vehicle drive devices. Background Technology

[0002] During major overhauls of gear drive systems in rail transit vehicles, components such as sealing rings, slip rings, and bearing inner rings on the axles need to be disassembled. When disassembling these parts, the axle needs to be horizontally secured. The traditional method involves placing the gears in contact with the ground and using a support bracket on the axle to keep it horizontal before proceeding with disassembly. This method requires frequent lifting for each part removal, resulting in cumbersome operations and time-consuming processes. Therefore, designing a new type of axle securing fixture for major overhauls of rail vehicle drive systems is crucial to simplify the operation and reduce time. Summary of the Invention

[0003] To solve the above problems, this utility model designs a new type of axle fixing fixture for overhauling rail vehicle drive devices. With this design, the axle is fixed before disassembly, and the installation of the induction heater and the removal of parts on the axle can be completed without lifting the axle, which can effectively simplify the operation and reduce the operation time.

[0004] To solve the above-mentioned technical problems, this utility model provides a novel axle fixing fixture for overhauling a rail vehicle drive device. Its features include: a base plate, a support frame, a clamping seat, and a V-shaped support block. The top of the base plate has several connecting holes for mounting the support frame and the clamping seat. The support frame is the placement area for the large gear and consists of a support base plate fixed to the base plate, and a first support vertical plate and a second support vertical plate welded to the support base plate. Two second support vertical plates are provided, with the first support vertical plate and the two second support vertical plates arranged one in front of the other. A "T"-shaped notch is provided between the first and second support vertical plates and between the two second support vertical plates on the support base plate. The V-shaped support block is placed on the base plate at the "T"-shaped notch between the first and second support vertical plates. One end of the clamping seat extends between the two second support vertical plates.

[0005] Furthermore, the base plate is a rectangular plate with thickened corners and countersunk holes for fixing.

[0006] Furthermore, a rectangular plate is welded and fixed between each end of the first supporting vertical plate and the two second supporting vertical plates, and a lifting ring for hoisting and handling is detachably installed at the center of the rectangular plate.

[0007] Furthermore, the top of the first supporting vertical plate is provided with a circular notch, and the two second supporting vertical plates are provided with arc-shaped grooves that match the circular notch on opposite sides. First reinforcing ribs are provided between the first supporting vertical plate and the supporting base plate, and between the second supporting vertical plate and the supporting base plate.

[0008] Furthermore, the clamping seat is composed of a fixed block at the bottom and an mounting block and a sliding block at the top. One end of the fixed block is fixed to the base plate directly below the "T"-shaped notch between the two second support vertical plates by bolts. The mounting block is fixed to the top of the other end of the fixed block. The top of the fixed block has a dovetail groove for the sliding block to slide. The bottom of the sliding block has a boss structure that slides in the dovetail groove. A horizontally arranged long rod 3-4 is rotatably connected to the mounting block through a bearing. A handwheel is installed on one end of the long rod. The other end of the long rod passes through the mounting block and extends above the sliding block, and has a threaded structure. A connecting block is welded to the top of the sliding block near the mounting block. A threaded through hole is opened on the connecting block directly opposite the long rod. The long rod passes through the connecting block along the threaded through hole. A clamping plate for clamping the large gear is welded to the top of the other end of the sliding block. A second reinforcing rib is welded to the clamping plate and the sliding block.

[0009] Furthermore, the sliding block is machined with a waist-shaped groove, and a limiting bolt is connected to the top of the fixed block at a position relative to the waist-shaped groove. The limiting bolt passes through the sliding block along the waist-shaped groove, and a flat washer and a spring washer are connected to the limiting bolt above the sliding block. The sliding block is pressed and fixed on the fixed block by the limiting bolt, the flat washer, and the spring washer.

[0010] Furthermore, the V-shaped support block is composed of a rectangular plate and two triangular blocks symmetrically connected to the rectangular plate, with a V-shaped groove formed between the two triangular blocks to support the large gear.

[0011] Furthermore, a nylon sheet is installed on the side of the triangular block plate that supports the large gear.

[0012] With the above structure, this utility model can install the induction heater and remove the parts on the axle without lifting the axle after fixing the axle before disassembly, which can effectively simplify the operation and reduce the operation time. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a diagram showing the usage state of this utility model.

[0015] Figure 2This is a schematic diagram of the structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the base plate.

[0017] Figure 4 This is a schematic diagram of the support frame.

[0018] Figure 5 This is a schematic diagram of the clamping seat.

[0019] Figure 6 This is a schematic diagram of the V-shaped support block.

[0020] In the diagram: 1 is the base plate, 1-1 is the countersunk hole, 1-2 is the connecting hole, 2 is the support frame, 2-1 is the support base plate, 2-2 is the first support vertical plate, 2-3 is the second support vertical plate, 2-4 is the rectangular plate, 2-5 is the lifting ring, 2-6 is the first reinforcing rib, 3 is the clamping seat, 3-1 is the fixing block, 3-2 is the mounting block, 3-3 is the sliding block, 3-4 is the long rod, 3-5 is the handwheel, 3-6 is the connecting block, 3-7 is the clamping plate, 3-8 is the second reinforcing rib, 4 is the V-shaped support block, 4-1 is the rectangular plate, 4-2 is the triangular block plate, and 4-3 is the nylon sheet. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] In the description of this utility model, it should be noted that certain terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] In the description of this utility model, it should be noted that the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The present invention will be further described in detail below through specific embodiments.

[0025] like Figure 1 , Figure 2 and Figure 3 The above describes a novel axle fixing fixture for overhauling a rail vehicle drive unit, comprising a base plate 1, a support frame 2, a clamping seat 3, and a V-shaped support block 4. The top of the base plate has several connecting holes 1-2 for mounting the support frame and clamping seat. The support frame is the placement area for the large gear and consists of a support base plate 2-1 fixed to the base plate, and a first support vertical plate 2-2 and a second support vertical plate 2-3 welded to the support base plate. Two second support vertical plates are provided, with the first support vertical plate and the two second support vertical plates arranged one in front of the other. A "T"-shaped notch is provided between the first and second support vertical plates and between the two second support vertical plates on the support base plate. The V-shaped support block is placed on the base plate at the "T"-shaped notch between the first and second support vertical plates. One end of the clamping seat extends between the two second support vertical plates.

[0026] like Figure 3 The base plate shown is a rectangular plate with thickened corners and countersunk holes 1-1 for fixing.

[0027] like Figure 4 A rectangular plate 2-4 is welded and fixed to each end of the first supporting vertical plate and between each of the two second supporting vertical plates. A lifting ring 2-5 for hoisting and handling is detachably installed at the center of the rectangular plate.

[0028] like Figure 4 The top of the first support vertical plate shown has a circular notch, and the two second support vertical plates each have an arc-shaped groove matching the circular notch on their opposite sides. First reinforcing ribs 2-6 are provided between the first support vertical plate and the support base plate, and between the second support vertical plate and the support base plate.

[0029] like Figure 5The clamping seat shown consists of a fixed block 3-1 at the bottom and an mounting block 3-2 and a sliding block 3-3 at the top. One end of the fixed block is fixed to the base plate directly below the "T"-shaped notch between two second support vertical plates by bolts. The mounting block is fixed to the top of the other end of the fixed block. The top of the fixed block has a dovetail groove for the sliding block to slide. The bottom of the sliding block has a boss structure that slides in the dovetail groove. A horizontally arranged long rod 3-4 is rotatably connected to the mounting block through a bearing. A handwheel 3-5 is installed on one end of the long rod. The other end of the long rod passes through the mounting block and extends above the sliding block, and has a threaded structure. A connecting block 3-6 is welded to the top of the sliding block near the mounting block. A threaded through hole is opened on the connecting block directly opposite the long rod. The long rod passes through the connecting block along the threaded through hole. A clamping plate 3-7 for clamping the large gear is welded to the top of the other end of the sliding block. A second reinforcing rib 3-8 is welded to the clamping plate and the sliding block.

[0030] like Figure 5 The sliding block shown has a waist-shaped groove. A limit bolt is connected to the top of the fixed block relative to the waist-shaped groove. The limit bolt passes through the sliding block along the waist-shaped groove. A flat washer and a spring washer are connected to the limit bolt above the sliding block. The sliding block is pressed and fixed to the fixed block by the limit bolt, the flat washer and the spring washer.

[0031] like Figure 6 The V-shaped support block shown is composed of a rectangular flat plate 4-1 and two triangular plates 4-2 symmetrically connected to the rectangular flat plate. A V-shaped groove for supporting the large gear is formed between the two triangular plates. A nylon sheet 4-3 is installed on the side of the triangular plate that supports the large gear. This design provides good protection for the large gear through the nylon sheet.

[0032] During operation, the axle is lifted and slowly moved to the upper part of the fixture, aligning the large gear between the two vertical plates of the support frame. Then, the axle is slowly lowered so that the large gear contacts the V-shaped support block. The handwheel is rotated to clamp the large gear onto the flat plate of the slider on the clamping seat. The limiting bolts in the oblong hole of the upper slider are tightened to secure the upper slider. Next, the lifting sling is removed, and disassembly begins. After disassembly, the lifting sling is reinstalled, the limiting bolts in the oblong hole of the upper slider are loosened, and the handwheel is rotated in the opposite direction to disengage the flat plate of the slider on the clamping seat from the large gear. Finally, the axle is slowly lifted to complete the operation. This invention, by fixing the axle before disassembly, eliminates the need to lift the axle, allowing for the installation of the induction heater and the removal of parts from the axle, effectively simplifying the operation and reducing operation time.

[0033] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should be considered within its protection scope.

Claims

1. A novel axle fixing fixture for overhauling a rail vehicle drive unit, characterized in that: The device includes a base plate (1), a support frame (2), a clamping seat (3), and a V-shaped support block (4). The top of the base plate has several connecting holes (1-2) for installing the support frame and the clamping seat. The support frame is the placement part of the large gear. It has a support base plate (2-1) for fixing to the base plate and a first support vertical plate (2-2) and a second support vertical plate (2-3) welded to the support base plate. There are two second support vertical plates. The first support vertical plate and the two second support vertical plates are arranged one in front of the other. A "T" shaped notch is opened on the support base plate between the first support vertical plate and the second support vertical plate and between the two second support vertical plates. The V-shaped support block is placed on the base plate at the "T" shaped notch between the first support vertical plate and the second support vertical plate. One end of the clamping seat extends into the space between the two second support vertical plates.

2. The novel overhaul axle fixing fixture for a rail vehicle drive unit according to claim 1, characterized in that: The base plate is a rectangular plate with thickened corners and countersunk holes (1-1) for fixing.

3. The novel overhaul axle fixing fixture for a rail vehicle drive unit according to claim 1, characterized in that: A rectangular plate (2-4) is welded and fixed between each end of the first support vertical plate and the two second support vertical plates. A lifting ring (2-5) for hoisting and transportation is detachably installed at the center of the rectangular plate.

4. The novel overhaul axle fixing fixture for a rail vehicle drive unit according to claim 1, characterized in that: The top of the first support vertical plate is provided with a circular notch, and the two second support vertical plates are provided with arc-shaped grooves that match the circular notch on opposite sides. First reinforcing ribs (2-6) are provided between the first support vertical plate and the support base plate, and between the second support vertical plate and the support base plate.

5. A novel overhaul axle fixing fixture for a rail vehicle drive unit according to claim 1, characterized in that: The clamping seat consists of a lower fixing block (3-1), an upper mounting block (3-2), and a sliding block (3-3). One end of the fixing block is bolted to the base plate directly below the "T"-shaped notch between the two second support vertical plates. The mounting block is fixed to the top of the other end of the fixing block. The top of the fixing block has a dovetail groove for the sliding block to slide. The bottom of the sliding block has a boss structure that slides within the dovetail groove. A horizontally positioned long rod (3-1) is rotatably connected to the mounting block via a bearing. -4) A handwheel (3-5) is installed on one end of the long rod. The other end of the long rod passes through the mounting block and extends above the sliding block, and a threaded structure is provided thereon. A connecting block (3-6) is welded and fixed to the top of the sliding block near the mounting block. A threaded through hole is opened on the connecting block directly opposite the long rod. The long rod passes through the connecting block along the threaded through hole. A clamping plate (3-7) for clamping the large gear is welded and fixed to the top of the other end of the sliding block. A second reinforcing rib (3-8) is welded and fixed between the clamping plate and the sliding block.

6. A novel overhaul axle fixing fixture for a rail vehicle drive unit according to claim 5, characterized in that: The sliding block is machined with a waist-shaped groove. A limiting bolt is connected to the top of the fixed block at a position relative to the waist-shaped groove. The limiting bolt passes through the sliding block along the waist-shaped groove. A flat washer and a spring washer are connected to the limiting bolt above the sliding block. The sliding block is pressed and fixed on the fixed block by the limiting bolt, the flat washer, and the spring washer.

7. A novel overhaul axle fixing fixture for a rail vehicle drive unit according to claim 1, characterized in that: The V-shaped support block is composed of a rectangular plate (4-1) and two triangular plates (4-2) symmetrically connected on the rectangular plate. A V-shaped groove for supporting the large gear is formed between the two triangular plates.

8. A novel overhaul axle fixing fixture for a rail vehicle drive unit according to claim 7, characterized in that: A nylon sheet (4-3) is installed on one side of the triangular block plate that supports the large gear.

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