Train brake cylinder hoisting tool

Abstract

The utility model discloses a lifting tool for a train brake cylinder. The lifting tool comprises a cuboid extending rod, side grooves formed in the four side surfaces of the extending rod, movable clamping plates with the bottom ends rotationally connected into the side grooves, and high-strength rotating shafts connected between the bottom ends of the movable clamping plates and the bottoms of the side grooves. Through the designed assemblies such as an extending rod, a side groove, a movable clamping plate, a high-strength rotating shaft, an ejector rod, a hydraulic rod and a traction steel wire, when the cylinder body needs to be hoisted through the tool, the extending rod extends into a center hole of the cylinder body, in the process, the movable clamping plate is collected in the side groove, after the extending rod extends, the movable clamping plate is opened, and then the cylinder body is hoisted through the high-strength rotating shaft; and then the stretching-in rod is pulled upwards, at the moment, the opened movable clamping plate can be clamped with the interior of the cylinder body, so that the cylinder body can be hoisted, and the cylinder body hoisting tool has the beneficial effects that the adaptability of the tool is high, and the cylinder body hoisting tool can be flexibly adapted to hoisting of cylinder bodies of different specifications.

Description

Technical Field

[0001] This utility model belongs to the field of train brake cylinder manufacturing technology, specifically relating to a train brake cylinder lifting fixture. Background Technology

[0002] Train braking is achieved through pneumatic assistance, with the brake cylinder being a key component. The brake cylinder requires handling during manufacturing. The cylinder body is a smooth cylinder with a central vent hole on its end face. Due to the significant weight of the train brake cylinder, manual handling is inconvenient, necessitating the use of specialized lifting equipment. A search revealed a lifting device for a train brake cylinder in Chinese patent application CN202122664413.8. This patent utilizes a designed connecting rod, lower support block, and eccentric limiting post to secure the cylinder body inside its top, thus completing the lifting process.

[0003] However, the above-mentioned patent has certain shortcomings in actual use. To complete the hoisting, the outer wall of the limiting post and the inner wall of the central hole on the cylinder body need to match. If the limiting post is thicker or thinner than the central hole, it is not convenient to lift the cylinder body. The adaptability is poor and there are limitations in use. Therefore, a new hoisting tool needs to be designed to solve this problem. Utility Model Content

[0004] The purpose of this utility model is to provide a lifting fixture for train brake cylinders, so as to solve the problem that the lifting fixtures in the cited patents mentioned in the background art have poor adaptability and limited use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lifting fixture for a train brake cylinder, comprising...

[0006] The rod is a cuboid, the rod has side grooves on its four sides, the rod has a movable locking plate rotatably connected to the bottom of the side groove, and a high-strength rotating shaft is connected between the bottom of the movable locking plate and the bottom of the side groove. The high-strength rotating shaft only allows the movable locking plate to rotate 30 degrees.

[0007] The top rod is connected to the top of the extension rod, the hydraulic rod is installed inside the top rod, and the traction steel wire is connected to the bottom protruding end of the hydraulic rod. The bottom end of the traction steel wire is divided into four strands, which slide through the extension rod and are fixedly connected to the four movable snap-fit ​​plates around the perimeter.

[0008] Preferably, the inside of the extension rod is provided with a wire groove, which includes a main wire groove vertically opened inside the extension rod and four branch wire grooves that are connected to the bottom end of the main wire groove. The traction steel wire is placed inside the main wire groove, and its bottom end is divided into four strands that pass through the branch wire grooves and are fixedly connected to the movable snap-fit ​​plate.

[0009] Preferably, the movable snap-fit ​​plate includes a steel plate and an engineering plastic head, wherein the engineering plastic head is fixed to the top of the steel plate.

[0010] Preferably, a connecting assembly is provided between the bottom end of the top rod and the top end of the extension rod. The connecting assembly includes a fixing cover and bolts. The fixing cover is fixed to the bottom end of the top rod and covers the outside of the top end of the extension rod. The fixing cover is fixedly connected to the top end of the extension rod by bolts. The bolts and the traction wire are misaligned.

[0011] Preferably, a lifting ring is provided at the top of the top rod, and the lifting ring and the top rod are welded together for fixation.

[0012] Preferably, auxiliary support plates are fixed on the four sides of the extension rod at the bottom outer side of the side groove, and the auxiliary support plates and the extension rod form a 30-degree angle.

[0013] Preferably, the inner wall of the side groove is provided with a rubber pad, which is located on the bottom side of the side groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] By incorporating components such as the extension rod, side groove, movable locking plate, high-strength rotating shaft, top rod, hydraulic rod, and traction steel wire, when the cylinder body needs to be lifted using the tooling, the extension rod is first inserted into the center hole of the cylinder body. During this process, the movable locking plate is retracted inside the side groove. After the extension rod is inserted, the movable locking plate is opened, and then the extension rod is pulled up. At this point, the opened movable locking plate can engage with the inside of the cylinder body, thus enabling the lifting of the cylinder body. The advantage of this design is that the tooling has high adaptability and can flexibly adapt to the lifting of cylinder bodies of different specifications. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0017] Figure 2 This is a front sectional view of the present invention in its working state;

[0018] Figure 3 This utility model Figure 1 Enlarged view of area A in the middle;

[0019] Figure 4 This utility model Figure 1 Enlarged diagram of area B in the middle;

[0020] Figure 5 This utility model Figure 1 Enlarged diagram of area C;

[0021] In the diagram: 100, extension rod; 200, side groove; 300, movable snap-fit ​​plate; 301, steel plate; 302, engineering plastic head; 400, high-strength rotating shaft; 500, top rod; 600, hydraulic rod; 700, traction steel wire; 800, connecting assembly; 801, fixing cover; 802, bolt; 900, cable tray; 901, main cable tray; 902, branch cable tray; 1000, auxiliary support plate; 1100, lifting ring; 1200, rubber pad. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0023] Please see Figures 1 to 5 This embodiment provides a technical solution: a lifting fixture for a train brake cylinder, comprising...

[0024] The cylinder has a rectangular extension rod 100, side grooves 200 on its four sides, a movable locking plate 300 rotatably connected to the bottom of the side groove 200, and a high-strength rotating shaft 400 connecting the bottom of the movable locking plate 300 and the bottom of the side groove 200. The high-strength rotating shaft 400 only allows the movable locking plate 300 to rotate 30 degrees. Under normal conditions, the movable locking plate 300 is retracted inside the side groove 200, allowing the extension rod 100 to smoothly extend into the center hole of the cylinder. After extending into the cylinder, the movable locking plate 300 opens, and then the extension rod 100 is lifted upward. The cylinder is then locked from the inside by the opened movable locking plate 300, thus enabling hoisting.

[0025] A top rod 500 is connected to the top of the extension rod 100, a hydraulic rod 600 is installed inside the top rod 500, and a traction steel wire 700 is connected to the bottom protruding end of the hydraulic rod 600. The bottom end of the traction steel wire 700 is divided into four strands, which slide through the extension rod 100 and are fixedly connected to four movable locking plates 300 around the perimeter. When it is necessary to retract the movable locking plates 300, the traction steel wire 700 can be pulled by the hydraulic rod 600, and the traction steel wire 700 can be used to pull the four movable locking plates 300 around the perimeter, thereby completing the retraction. After retraction, the extension rod 100 can be pulled out from the center hole of the cylinder.

[0026] In this embodiment, preferably, the inside of the extension rod 100 is provided with a wire groove 900. The wire groove 900 includes a main wire groove 901 vertically opened inside the extension rod 100 and four branch wire grooves 902 that are connected to the bottom end of the main wire groove 901. The traction steel wire 700 is placed inside the main wire groove 901, and its bottom end is divided into four strands that pass through the branch wire grooves 902 and are fixedly connected to the movable snap-fit ​​plate 300, so that the traction steel wire 700 can move along the wire groove 900.

[0027] In this embodiment, preferably, the movable snap-fit ​​plate 300 includes a steel plate 301 and an engineering plastic head 302. The engineering plastic head 302 is fixed to the top of the steel plate 301. When the movable snap-fit ​​plate 300 snaps into the cylinder, the engineering plastic head 302 can play a buffering and protective role to avoid scratching the inner wall of the cylinder.

[0028] In this embodiment, preferably, a connecting assembly 800 is provided between the bottom end of the top rod 500 and the top end of the extension rod 100. The connecting assembly 800 includes a fixing cover 801 and a bolt 802. The fixing cover 801 is fixed to the bottom end of the top rod 500 and covers the outside of the top end of the extension rod 100. The fixing cover 801 is fixedly connected to the top end of the extension rod 100 by the bolt 802. The bolt 802 and the traction wire 700 are misaligned. The connecting assembly 800 can fix the extension rod 100 and the top rod 500 together. Personnel can remove the bolt 802 to separate the extension rod 100 and the top rod 500, and the hydraulic rod 600 and the traction wire 700 can be inspected and maintained.

[0029] In this embodiment, preferably, a lifting ring 1100 is provided at the top of the top rod 500. The lifting ring 1100 and the top rod 500 are welded and fixed together, and can be connected to the steel cable of an external lifting device to lift the cylinder body.

[0030] In this embodiment, preferably, auxiliary support plates 1000 are fixed on the four sides of the extension rod 100 at the bottom outer side of the side groove 200. The auxiliary support plates 1000 and the extension rod 100 form a 30-degree angle. After the movable latching plate 300 is opened, the auxiliary support plates 1000 can provide auxiliary support for the movable latching plate 300.

[0031] In this embodiment, preferably, a rubber pad 1200 is provided on the inner wall of the side groove 200. The rubber pad 1200 is located on the bottom side of the side groove 200. When the movable locking plate 300 is retracted, under the traction of the traction steel wire 700, the movable locking plate 300 will be squeezed against the rubber pad 1200, causing the rubber pad 1200 to deform. When it is necessary to open the movable locking plate 300, the traction force is released, and under the rebound of the rubber pad 1200, the movable locking plate 300 can be popped out to achieve opening.

[0032] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lifting fixture for a train brake cylinder, characterized in that: include The cuboid extension rod (100), the side grooves (200) formed on the four sides of the extension rod (100), the movable snap-fit ​​plate (300) rotatably connected to the bottom of the side groove (200), and the high-strength rotating shaft (400) connected between the bottom of the movable snap-fit ​​plate (300) and the bottom of the side groove (200), wherein the high-strength rotating shaft (400) only allows the movable snap-fit ​​plate (300) to rotate by thirty degrees; A top rod (500) is connected to the top of the extension rod (100), a hydraulic rod (600) is installed inside the top rod (500), and a traction wire (700) is connected to the bottom protruding end of the hydraulic rod (600). The bottom end of the traction wire (700) is divided into four strands, which slide through the extension rod (100) and are fixedly connected to four movable snap-fit ​​plates (300) around the perimeter.

2. The lifting fixture for a train brake cylinder according to claim 1, characterized in that: The extension rod (100) has a wire groove (900) inside. The wire groove (900) includes a main wire groove (901) vertically opened inside the extension rod (100) and four branch wire grooves (902) that are connected to the bottom end of the main wire groove (901). The traction steel wire (700) is placed inside the main wire groove (901), and its bottom end is divided into four strands that pass through the branch wire grooves (902) and are fixedly connected to the movable snap-fit ​​plate (300).

3. The lifting fixture for a train brake cylinder according to claim 2, characterized in that: The movable snap-fit ​​plate (300) includes a steel plate (301) and an engineering plastic head (302), the engineering plastic head (302) being fixed to the top of the steel plate (301).

4. The lifting fixture for a train brake cylinder according to claim 3, characterized in that: A connecting assembly (800) is provided between the bottom end of the top rod (500) and the top end of the extension rod (100). The connecting assembly (800) includes a fixing cover (801) and a bolt (802). The fixing cover (801) is fixed to the bottom end of the top rod (500) and covers the outside of the top end of the extension rod (100). The fixing cover (801) is fixedly connected to the top end of the extension rod (100) by the bolt (802). The bolt (802) and the traction wire (700) are misaligned.

5. A lifting fixture for a train brake cylinder according to claim 4, characterized in that: The top of the top rod (500) is provided with a lifting ring (1100), and the lifting ring (1100) and the top rod (500) are welded and fixed.

6. A lifting fixture for a train brake cylinder according to claim 5, characterized in that: The four sides of the extension rod (100) are fixed with auxiliary support plates (1000) on the outer side of the bottom end of the side groove (200), and the auxiliary support plates (1000) and the extension rod (100) form a 30-degree angle.

7. A lifting fixture for a train brake cylinder according to claim 6, characterized in that: The inner wall of the side groove (200) is provided with a rubber pad (1200), and the rubber pad (1200) is located on the bottom side of the side groove (200).

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