Radial rotary connecting device for electric locomotive and mine car
By designing the radial rotation connection device between the motor locomotive and the mine car, the safety risks, low efficiency and universal ring breakage in the unloading operation of the fixed car of the motor locomotive are solved, and safe and stable operation and production efficiency are achieved. .
Patent Information
- Application Number
- CN202420209008.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-29
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-01-29
AI Technical Summary
During the unloading operation of the motor locomotive towing fixed car mine truck, there are problems such as high safety risks for operators, low operating efficiency, easy breakage of universal rotary rings and insufficient safety spacing.
A radial rotational connection device between a locomotive and a mine truck is designed, including a locomotive connection, a rotary part and a mine truck connection part. It is connected to the locomotive through a pin, and a stable rotational connection is achieved using a single row of tapered roller bearings and bearing rings. , long rotary bearing structure is provided to ensure safety and stability.
It realizes operator safety, improves operating efficiency, avoids universal ring fracture and safety hazards, reduces maintenance costs and improves production efficiency.
Smart Images
Figure CN222136753U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a mining locomotive connection device, in particular to a radial rotation connection device for an electric locomotive and a mining car. Background Art
[0002] The mine rail transport system can be divided into ore rail transport system and waste rock rail transport system according to the type of transported raw materials. Its raw material loading equipment can be divided into bottom and side unloading mine cars, bottom unloading mine cars, side unloading mine cars and fixed-carriage mine cars. The corresponding unloading equipment can be divided into fixed unloading equipment and tipping unloading equipment. Among them, tipping unloading equipment generally refers to tipping machines, and its matching raw material loading equipment is fixed-carriage mine cars.
[0003] During the unloading process of the electric locomotive pulling the fixed-carriage mine car, due to the specific unloading process of the dumper and the transportation process of single-machine traction, it often involves the trailer unplugging operation link. That is, during the unloading operation, the front and rear positions of the electric locomotive need to be reversed many times to ensure that the train always has traction and the electric locomotive is in the correct position when leaving the dumper area after unloading.
[0004] The conventional electric locomotive hauled fixed carriage mine car is connected with a universal rotating ring, which has the following problems: First, in the process of switching and unhooking the vehicle by the electric locomotive, the operator needs to squat at 45 degrees, hold the rotating ring with one hand and hold the latch with the other hand to unhook and unhook. If the signal between the unhooking and unhooking personnel and the electric locomotive driver is unclear, the contact confirmation is not in place, or the operation is illegal, the safety risks such as pinching hands and bodies are extremely great, and if the unhooking and unhooking is unsuccessful once, it needs to be repeated many times, and the operation efficiency is low; second, during the unloading operation of the tipping machine, due to the universal rotating The large movement space of the ring often causes the universal ring to break during the tipping process, forcing the tipper to stop. This not only affects the integrity of the tipper equipment, but also increases the raw material and labor costs for the production of the universal ring and the maintenance of the tipper, and greatly affects the production efficiency. Third, during the unloading operation of the tipper, due to the short total length of the universal rotating ring between the electric locomotive and the mine car, when tipping the first mine car towed by the electric locomotive, the safe distance between the electric locomotive body and the tipper cage is small, which also poses a major safety hazard. Utility Model Content
[0005] In view of the problems existing in the above-mentioned background technology, the utility model discloses a radial rotation connection device between an electric locomotive and a mining car, which ensures that the electric locomotive pulls the fixed carriage safely, stably and reliably.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A radial rotation connection device for an electric locomotive and a mine car, comprising an electric locomotive connection part, a rotating part and a mine car connection part, wherein one end of the electric locomotive connection part is connected to the electric locomotive through a latch, and the other end forms a cavity to cooperate with the rotating part, the rotating part comprises a rotating shaft, a first single-row tapered roller bearing, a second single-row tapered roller bearing, a bearing ring and a gland, the rotating shaft extends into the cavity, and the rotating shaft is sequentially sleeved with the first single-row tapered roller bearing, the bearing ring and the second single-row tapered roller bearing from the inside to the outside; the first single-row tapered roller bearing The inner side of the sub-bearing is abutted and positioned against the inner end face of the cavity, and the outer side is abutted and positioned against the shoulder and bearing ring on the rotating shaft; the inner side of the second single-row tapered roller bearing is abutted and positioned against the shoulder and bearing ring on the rotating shaft, and the outer side is abutted and positioned against the pressure cover installed on the outer end face of the cavity; a mine car connecting part is installed at the exposed end of the rotating shaft, and the mine car connecting part includes a disc, a U-shaped ring, a slotted nut and a cotter pin. The disc and the U-shaped ring are integrally arranged and installed on the rotating shaft, and are positioned by screwing the slotted nut and the cotter pin at the end of the rotating shaft.
[0008] Compared with the prior art, the utility model has the following beneficial effects:
[0009] Through the implementation of the technical solution as described above, firstly, in the operation link of the electric locomotive switching and uncoupling the vehicle, the operator only needs to stand up and control the pin with one hand to complete the vehicle uncoupling operation, avoiding the potential safety risks of pinching hands and bodies, and achieving one-time successful uncoupling of the vehicle, thereby improving the operation efficiency; secondly, the special structure provided by the utility model solves the problem of the universal ring breaking during the unloading operation of the tipper, thereby forcing the tipper to stop, ensuring the integrity of the tipper main equipment, reducing the cost of maintenance materials and labor, and improving production efficiency; thirdly, the overall length of the utility model device is relatively long, which solves the problem of insufficient safety distance between the electric locomotive and the first towed mine car during the unloading operation of the tipper, thereby avoiding potential safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0011] Figure 2 It is a sectional view of the overall structure of the utility model.
[0012] In the figure, 1-electric locomotive connection part, 2-rotating part, 21-rotating shaft, 22-first single-row tapered roller bearing, 23-bearing ring, 24-second single-row tapered roller bearing, 25-pressure cover, 3-mine car connection part, 4-plunger. DETAILED DESCRIPTION
[0013] The present invention is further explained below in conjunction with the accompanying drawings and specific implementation methods.
[0014] like Figure 1 and 2 As shown, a radial rotation connection device between an electric locomotive and a mine car comprises an electric locomotive connection part 1, a rotating part 2 and a mine car connection part 3. One end of the electric locomotive connection part 1 is connected to the electric locomotive through a latch, and the other end forms a cavity to cooperate with the rotating part 2. An oil filling hole is provided on the side of the cavity, and a plunger 4 is threadedly connected to the oil filling hole; the rotating part 2 comprises a rotating shaft 21, a first single-row tapered roller bearing 22, a second single-row tapered roller bearing 24, a bearing ring 23 and a pressure cover 25. The rotating shaft 21 extends into the cavity, and the rotating shaft 21 is sequentially sleeved with the first single-row tapered roller bearing 22, the bearing ring 23 and the second single-row tapered roller bearing 24 from the inside to the outside; The inner side of a single-row tapered roller bearing 22 is abutted against the inner end face of the cavity, and the outer side is abutted against the shoulder and bearing ring 23 on the rotating shaft 21; the inner side of a second single-row tapered roller bearing 24 is abutted against the shoulder and bearing ring 23 on the rotating shaft 21, and the outer side is abutted against the pressure cover 25 installed on the outer end face of the cavity; a mine car connecting part 3 is installed at the exposed end of the rotating shaft 21, and the mine car connecting part 3 includes a disc 31, a U-shaped ring 32, a slotted nut 33 and a cotter pin 34. The disc 31 and the U-shaped ring 32 are welded as a whole and installed on the rotating shaft 21, and are positioned by the slotted nut 33 and the cotter pin 34 screwed on the end of the rotating shaft 21.
[0015] In the above device structure, the electric locomotive connecting part 1 is processed from a solid round steel, and the main body is divided into two ends, one end is connected to the electric locomotive through a pin, and the other end is matched with the rotating part 2, and the two ends are smoothly transitioned with rounded corners; the electric locomotive connecting end is machined into a crank shape, and a square hole is drilled in the crank to connect with the electric locomotive through a pin; the matching end of the rotating part 2 is machined into a cavity, and a step is formed inside the cavity, one is used to match the installation of the rotating shaft 21, and the other is used to position the single-row tapered roller bearing; at the same time, there are threaded holes on the side of the cavity and the end of the cavity, respectively, among which the side surface of the cavity is a through hole, serving as an oil filling hole, and the threaded hole at the end of the cavity is used to install the pressure cover 25.
[0016] The end of the rotating shaft 21 extending into the cavity is processed with a shoulder, which is used to cooperate with the cavity and the bearing ring 23 to realize the positioning of the single-row tapered roller bearing; the single-row tapered roller bearing can bear radial load and axial load at the same time, and the two bearings are respectively installed on the inner side of the cavity of the motor vehicle connection part, and are installed back to back. The first single-row tapered roller bearing 22 is installed at the inner end of the cavity, and the inner ring is positioned with the shoulder of the rotating shaft 21 through the cavity step, and the outer ring is positioned through the bearing ring 23. The second single-row tapered roller bearing 24 is installed at the outer end of the cavity, and the inner ring is positioned through the shoulder of the rotating shaft 21. The outer ring is positioned by the bearing ring 23 and the pressure cover 25, and both bearings are axially positioned; the bearing ring 23 is installed between the first single-row tapered roller bearing 22 and the second single-row tapered roller bearing 24, and the whole is divided into three pieces, each of which has a guide groove on the outer surface, and there is a gap between each piece for the lubricating oil to flow to the inner side of the cavity; the rotating shaft 21 and the first single-row tapered roller bearing 22 and the second single-row tapered roller bearing 24 are interference fits, while achieving radial positioning of the rotating shaft 21, further enhancing the compactness and load-bearing capacity of the shaft and the bearing. The exposed end of the rotating shaft 21, that is, the rotating shaft 21 connected to the mine car, is provided with an external thread and a pin hole for cooperation with the mine car connection part 3, and at the same time facilitates the installation and disassembly of the mine car connection part 3.
[0017] The mine car connecting part 3 includes a disc 31, a U-shaped ring 32, a slotted nut 33 and a cotter pin 34. The two ends of the U-shaped ring 32 are respectively welded to the surface of the disc 31. The disc 31 and the U-shaped ring 32 are installed at the end of the rotating shaft 21 as a whole and are positioned by the slotted nut 33 and the cotter pin 34.
[0018] When the utility model is used, the electric locomotive connection part 1 is fixed to the electric locomotive by a latch, and the mine car connection part 3 is fixed to the mine car by a latch. Since the overall length is long and can rotate 360 degrees without obstacles, it does not need to be detached during the dumping operation.
[0019] Through the implementation of the technical solution of the utility model, firstly, the radial positioning and axial positioning of the vehicle connection rotating device are realized, thereby realizing the non-physical intervention in the operation link of the electric locomotive to swap and detach the vehicle, avoiding the potential safety risks of pinching hands and bodies; secondly, the integrity of the main equipment of the tipper during the unloading operation of the tipper is guaranteed, the maintenance material and labor costs are reduced, and the production efficiency is improved; thirdly, the problem of insufficient safety distance between the electric locomotive and the first mine car towed during the unloading operation of the tipper is solved, avoiding potential safety hazards.
Claims
1. A radial rotation connection device between an electric locomotive and a mining car, It is characterized in that The invention comprises an electric locomotive connection part (1), a rotating part (2) and a mine car connection part (3); one end of the electric locomotive connection part (1) is connected to the electric locomotive by a latch, and the other end forms a cavity to match the rotating part (2); the rotating part (2) comprises a rotating shaft (21), a first single-row tapered roller bearing (22), a second single-row tapered roller bearing (24), a bearing ring (23) and a pressure cover (25); the rotating shaft (21) extends into the cavity, and the rotating shaft (21) is sequentially sleeved with the first single-row tapered roller bearing (22), the bearing ring (23) and the second single-row tapered roller bearing (24) from the inside to the outside; the inner side of the first single-row tapered roller bearing (22) is abutted against the inner end surface of the cavity for positioning The outer side of the second single-row tapered roller bearing (24) is abutted against the shoulder and the bearing ring (23) on the rotating shaft (21) for positioning; the inner side of the second single-row tapered roller bearing (24) is abutted against the shoulder and the bearing ring (23) on the rotating shaft (21) for positioning, and the outer side is abutted against the gland (25) installed on the outer end surface of the cavity for positioning; a mine car connecting part (3) is installed at the exposed end of the rotating shaft (21), and the mine car connecting part (3) includes a disc (31), a U-shaped ring (32), a slotted nut (33) and a split pin (34); the disc (31) and the U-shaped ring (32) are integrally arranged and installed on the rotating shaft (21), and are positioned by the slotted nut (33) and the split pin (34) screwed on the end of the rotating shaft (21).
2. A radial rotation connection device for an electric locomotive and a mining car as claimed in claim 1, Features: An oil filling hole is provided on the side of the cavity, and a plunger (4) is threadedly connected to the oil filling hole.