CN206241620U - A kind of assembling device of train heavy duty vehicle coupler polymeric buffer device - Google Patents

Abstract

The utility model discloses an assembly device for a polymer buffer of a train heavy-duty coupler. It includes a steel structure platform used as a body for carrying and assembly operations, and an electro-hydraulic cylinder and a pressing assembly mechanism installed on the steel structure platform. The steel structure platform is supported by and welded to the steel structure legs, and the legs pass through The oblique channel steel is connected and supported; the electrohydraulic cylinder and the compression assembly mechanism are respectively fixed on both sides of the steel structure platform, and the buffer is placed between the electrohydraulic cylinder and the compression assembly mechanism, and the electrohydraulic cylinder exerts a pre-load on the buffer. The tightening force reaches the compression assembly mechanism, and the compression assembly is realized by the compression assembly mechanism. The utility model has the advantages of simple structure, safety, high integration and easy operation. Under the premise of satisfying the preload force of 15.5 tons, the buffer assembly accuracy and high operation rate are guaranteed.

Description

An assembly device for a polymer buffer of a heavy-duty train coupler

technical field

The utility model relates to an assembling device for a polymer buffer of a train heavy-duty coupler, which is used for assembling a novel polymer spring buffer.

Background technique

The buffer device is one of the most important parts of the rolling stock, mainly used to alleviate the longitudinal impact and vibration caused by the collision of the vehicles due to the change of the traction force of the locomotive during operation, so as to reduce the damage to the structure of the rolling stock and the cargo loaded.

Due to the huge loading capacity of my country's heavy-duty freight trains and the poor working conditions of railway lines, train derailment accidents are extremely prone to occur. Therefore, there is a lack of polymer buffer devices in the prior art to solve the problems of insufficient buffer capacity and reliability.

Utility model content

In order to solve the problems existing in the background technology, in order to meet the needs of localized polymer buffers and maintenance, the purpose of this utility model is to provide an assembly device for train heavy-duty coupler polymer buffers, which is simple in structure, safe and highly integrated. High and easy to operate, under the premise of meeting the preload of 15.5 tons, it ensures the buffer assembly operation is simple, safe, high precision and high operating rate.

In order to achieve the above object, the technical scheme that the utility model adopts is:

The utility model includes a steel structure platform used as a machine body for bearing and assembling operations, an electric hydraulic cylinder and a pressing assembly mechanism installed on the steel structure platform. The steel structure platform is connected and welded by supporting legs, and the legs pass through The oblique channel steel is connected and supported; the electrohydraulic cylinder and the compression assembly mechanism are respectively fixed on both sides of the steel structure platform, and the buffer is placed between the electrohydraulic cylinder and the compression assembly mechanism, and the electrohydraulic cylinder exerts a pre-load on the buffer. The tightening force reaches the compression assembly mechanism, and the compression assembly is realized by the compression assembly mechanism.

The electro-hydraulic cylinder is fixed on the steel structure platform with bolts, and includes an electro-hydraulic push rod and a push head. iron.

The pressing assembly mechanism includes an intermediate top block, a pressure bearing part, a protective cover and a guide rod, the pressure bearing part is welded on a steel structure platform, and an intermediate top is placed on the steel structure platform between the pressure bearing part and the electric hydraulic cylinder. block, between the middle top block and the pressure-bearing parts is the assembly area where the buffer is placed, and a detachable protective cover is provided outside the assembly area, the protective cover is connected to the steel structure platform, and the guide rod is used to insert into the buffer for Radial positioning, the end surface of the middle top block is provided with a central hole for the guide rod to move through; the pressure-bearing parts include steel plates, limit plates, top plates, middle rib plates and side rib plates, and the top plate is fixed vertically on the steel plate. On the structural platform, the front end of the roof faces the electric hydraulic cylinder, the middle part of the rear end of the roof is fixedly connected to the steel structure platform through two middle ribs, the two sides of the rear end of the roof are fixedly connected to the steel structure platform through side ribs, and the middle of the roof end There are through holes for passing through the guide rods, and the four corners of the end surface of the top plate are provided with through holes for the bolts of the buffer to pass through; The extension end is Γ-shaped, and is fixedly connected with a steel plate on the bottom surface of the extension end. The steel plate serves as a buffer height limit and safety protection; there are limit plates on both sides of the front end of the top plate, and the limit plates serve as buffer left and right limits. and safety protection.

The electro-hydraulic push rod is integrated with a pressure regulating device and a pressure display. The push rod can stop at any position within the stroke range and keep the pressure to ensure that the workers can successfully complete the bolt installation work.

The steel plate is welded to the extended end of the middle rib, and the limiting plate is welded to the top plate and the steel structure platform.

The diameter of the guide rod is the same as that of the mandrel in the buffer, and both ends of the guide rod have chamfers.

The utility model has taken multiple measures in terms of safety protection: 1. A safety cover is adopted, which is placed in the middle of the buffer to prevent parts from popping up and hurting people when the polymer spring is compressed; 2. The protruding part of the Γ-shaped rib plate at the top plate The welded steel plate can prevent the buffer from popping up; 3. The limit plate can prevent the buffer from popping up left and right; 4. The guide rod is inserted into the top plate and the middle stopper, which can also effectively prevent the buffer from popping up.

The beneficial effect that the utility model has is:

1) The electro-hydraulic push rod is used as the pressurizing element, which is small in size and strong in strength. It only needs to be connected to the power supply, and the operation is simple. The electro-hydraulic push rod is integrated with a pressure regulating device and a pressure display, and the push rod can stop at any position within the stroke range and maintain pressure.

2) The middle and rear baffles and a group of polymer springs are first assembled by using the middle top block and guide rod, which can reduce the stroke and action time of the electro-hydraulic push rod, reduce the length of the electro-hydraulic push rod, increase the operating rate, and ensure the shock absorber Neutral.

3) When assembling the front and middle baffles and another group of polymer springs, the guide rod is used as the buffer center positioning and the buffer mandrel guide element, so that the buffer assembly process is simple and easy.

4) The assembly process is all completed on the assembly platform, and it only needs to be equipped with a small spreader to lift heavy parts and assembled buffers.

5) The top plate of the assembly platform is reinforced with 4 ribs, which can fully withstand the thrust of the electro-hydraulic push rod. The guide rod holes and bolt holes on the top plate are very convenient for the assembly of the buffer.

6) All-round safety measures such as protective cover, limit plate and upper protective steel plate are adopted, and the safety and reliability of assembly operation are very high.

Description of drawings

Fig. 1 is the front view of the utility model device.

Fig. 2 is a cross-sectional view along line A-A of Fig. 1 .

Fig. 3 is a sectional view along line B-B of Fig. 1 .

Figure 4 is a diagram of the assembly structure of the buffer.

Fig. 5 is a schematic diagram of the first assembly state of the buffer.

Fig. 6 is a schematic diagram of the second assembly state of the buffer.

Fig. 7 is a schematic diagram of the third assembly state of the buffer.

Fig. 8 is a schematic diagram of the fourth assembly state of the buffer.

In Figure 1: 1 platform outrigger, 2 steel structure platform, 3 thrust stop iron, 4 electro-hydraulic push rod, 5 push head, 6 middle top block, 7 protective cover, 8 steel plate, 9 top plate, 10 middle rib plate, 11 Side reinforcement plate, 12 guide rod, 13 limit plate, 14 bolt, 15 mandrel, 16 front baffle, 17 front spring group, 18 middle baffle, 19 middle baffle sleeve, 20 rear spring group, 21 rear baffle plate, 22 tailgate bushings.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

As shown in Figures 1 and 2, the utility model includes a steel structure platform 2 as a body and is used for carrying and assembling operations, and an electro-hydraulic cylinder and a pressing assembly mechanism installed on the steel structure platform 2. The steel structure platform 2 consists of Outrigger 1 is supported and connected and welded. The frame of outrigger 1 and platform 2 is combined and welded by channel steel. Outrigger 1 is connected and supported by oblique channel steel to form a firm and stable structure that can maintain Its strength and rigidity; the electrohydraulic cylinder and the compression assembly mechanism are respectively fixed on both sides of the steel structure platform 2, the buffer is placed between the electrohydraulic cylinder and the compression assembly mechanism, and the electrohydraulic cylinder applies preload to the buffer The force reaches the compression assembly mechanism, and the compression assembly is realized by the compression assembly mechanism.

The electro-hydraulic cylinder is fixed on the steel structure platform 2 with bolts, including the electro-hydraulic push rod 4 and the push head 5. The push iron 3 is used to bear the reaction force of the push rod, so that the bolts of the fixed electric hydraulic cylinder do not bear the shearing force. The electro-hydraulic push rod is integrated with a pressure regulating device and a pressure display. The push rod can stop at any position within the stroke range and maintain pressure to ensure the assembly of the buffer bolts.

As shown in Figure 2, the pressing assembly mechanism includes an intermediate top block 6, a pressure-bearing component, a protective cover 7 and a guide rod 12, the pressure-bearing component is fixedly installed on the steel structure platform 2, and the pressure-bearing component and the electric hydraulic cylinder The steel structure platform 2 is provided with an intermediate jacking block 6, an assembly area for placing a buffer between the intermediate jacking block 6 and the pressure-bearing parts, and a detachable protective cover 7 is arranged outside the assembly area, and the protective cover 7 is connected to the steel structure. The structural platform 2 and the guide rod 12 are used to be inserted into the buffer for radial positioning, and the end surface of the middle top block 6 is provided with a central hole for the guide rod 12 to move through. As shown in Figure 3, the protective cover 7 is installed on the support plates on both sides of the platform with a pin shaft, which is convenient for disassembly and assembly.

The pressure-bearing parts include a steel plate 8, a limit plate 13, a top plate 9 for bearing the thrust generated by the electro-hydraulic push rod, a middle rib 10 and a side rib 11. The top plate 9 is vertically and fixedly installed on the steel structure platform 2, and the front end of the top plate 9 Facing the electric hydraulic cylinder, the middle part of the rear end of the top plate 9 is fixedly connected to the steel structure platform 2 through two middle ribs 10, and the two sides of the rear end of the top plate 9 are fixedly connected to the steel structure platform 2 through side ribs 11. There is a through hole for penetrating the guide rod 12 in the middle, and the four corners of the end surface of the top plate 9 are provided with through holes for the bolt 14 of the buffer to pass through.

The upper end of the middle rib plate 10 extends toward the assembly area, and forms an extension end extending to the upper rear side of the assembly area, which is Γ-shaped, and a steel plate 8 is fixedly connected to the bottom surface of the extension end. The steel plate 8 serves as a buffer height limit and safety protection, buffering The upper end of the device is connected to the steel plate 8, and is protected by the limit protection of the steel plate 8; the both sides of the front end of the top plate 9 are respectively provided with a limit plate 13, and the limit plate 13 is used as the left and right limit and safety protection of the buffer.

Thus the utility model is provided with all-round personal safety protection measures. During the working period of the electro-hydraulic push rod 4, the protective cover 7 is adopted, and at the same time, the limit plate 13 is used to prevent the buffer from popping up left and right, and the upper protective steel plate 8 prevents the buffer from popping up. All-round safety measures, the safety and reliability of the assembly operation are high .

As shown in Figure 4, the buffer involved in the utility model is a heavy-duty buffer, which specifically includes a bolt 14, a mandrel 15, a front baffle 16, a front spring group 17, a middle baffle 18, a middle baffle sleeve 19, a rear Spring group 20, rear baffle 21 and rear baffle sleeve 22, front spring group 17 is placed between front baffle 16 and middle baffle 18, rear spring group 20 is placed between rear baffle 21 and middle baffle 18 After assembly, the front spring group 17 and the rear spring group 20 are respectively fixed by bolts 14, the mandrel 15 runs through the front baffle 16, the middle baffle 18 and the rear baffle 21, the mandrel 15 and the middle baffle 18 A middle baffle sleeve 19 is arranged between them, and a rear baffle sleeve 22 is arranged between the mandrel 15 and the rear baffle 21 .

The diameter of the guide rod 12 is the same as that of the mandrel 15 in the buffer. Both ends of the guide rod 12 have chamfers, which are convenient for insertion into the bushing in the buffer. The guide rod plays a role in the centering of the buffer and the installation of the buffer mandrel during assembly. oriented.

The middle top block is welded by steel pipe and steel plate, and there is a guide rod passing hole in the middle, which is used for the assembly of the buffer, the tailgate and a group of polymer springs.

In specific implementation, the buffer targeted by the utility model is a large-load component, and also bears a large load force when the extrusion spring is assembled. The buffer capacity is greater than 70 kJ, the buffer force can reach 2500 kN (250 ton force), the preload is 155 kN (15.5 ton force), and the rated stroke of each polymer spring is 55 mm. The key points of the buffer assembly are: 1. There must be enough axial force to overcome the pre-tightening force. 2. The centering must be ensured while applying the axial force. The mandrel and bolts must be able to be smoothly inserted into their respective holes. 3. To ensure the axial dimension after assembly 4. To ensure the safety of operators.

Fig. 5～Fig. 8 has provided that the implementation process of the present utility model is:

As shown in Figure 5, first assemble the middle and rear baffles and a group of polymer springs, the bushings are installed in the respective baffles, the rear baffle leans against the top plate 9, and the guide rod 12 is inserted into the bushings and the rear baffles. The polymer spring hole ensures neutrality. The diameter of the guide rod 12 is the same as that of the buffer mandrel, and the two ends are designed with larger chamfers for easy insertion into the shaft sleeve. Now the size of the equipment under the spring free state is greater than L1, put the middle stopper 6 against the middle baffle plate, and install the protective cover 7.

Start the electro-hydraulic push rod 4, the rear baffle is limited by the steel plate 8 and the limit plate 12, and the middle baffle is pushed by the push head 5 and guided by the guide rod 12, and compresses the polymer spring until the design size L2 stops ( As shown in Figure 6). The electro-hydraulic push rod 4 can maintain pressure continuously to ensure that the parking position does not change. Then insert the connecting bolts through the holes on the top plate 9 and fasten them with nuts, so far the middle and rear baffles and one group of polymer springs are assembled. Return the electro-hydraulic push rod 4 to the initial position.

Next, assemble the front baffle and another set of polymer springs, remove the middle block 6 as shown in Figure 7, put the polymer spring set, front baffle and mandrel in the position shown in the figure, and the mandrel passes through the front baffle Insert the central hole and the polymer spring hole into the middle baffle sleeve, and at the same time, the guide rod 6 moves out a part to the right through the middle hole of the top plate 9, and at this time, the end of the mandrel should be on the middle baffle axis with the end of the guide rod. contact in the cover, so that the front, middle and rear baffles can be guaranteed to be on a central line, and the equipment size in the spring free state is greater than L3 (as shown in Figure 7).

Start the electro-hydraulic push rod 4, and push the buffer mandrel and the front baffle to the right. During the pushing process, the mandrel moves to the left under the guidance of the guide rod 6 and is gradually installed in place, and the guide rod 6 is gradually lifted from the top plate. The middle hole of 9 exits from the buffer and is removed manually. When the overall size of the buffer is compressed to the size L4 required by the drawings, the electro-hydraulic push rod 4 stops, inserts the connecting bolt from the left side of the front baffle, and tightens it with a nut (as shown in Figure 8). So far the buffer assembly is completed, and the total length dimension is L.

Referring to the accompanying drawings, the above-described embodiments are provided. The examples will help to understand the utility model, but do not limit the content of the utility model. All deformations that a person skilled in the art can derive or associate directly from the content disclosed in the utility model shall be considered as the protection scope of the utility model.

Claims (5)

1. a kind of assembling device of train heavy duty vehicle coupler polymeric buffer device, it is characterised in that：Including as body and for holding Carry and carry out the steel structure platform (2) and electrohydraulic cylinder and compression group on steel structure platform (2) of assembling operation Mounting mechanism, steel structure platform (2) is connected and welded by supporting leg (1) support, and support is connected by oblique channel-section steel between supporting leg (1)； Electrohydraulic cylinder and compression assembling mechanism are separately fixed at the both sides on steel structure platform (2), and buffer is placed in electrohydraulic cylinder And compression assembling mechanism between, pretightning force is applied to buffer to assembling mechanism is compressed by electrohydraulic cylinder, assembled by compressing Mechanism realizes compressing assembling.

2. the assembling device of a kind of train heavy duty vehicle coupler polymeric buffer device according to claim 1, it is characterised in that：Institute The electrohydraulic cylinder bolt stated is fixed on steel structure platform (2), including electric drive hydraulic thruster (4) and cut somebody's hair (5), electric hydaulic Push rod (4) head is installed and cut somebody's hair (5), and thrust buting iron (3) is welded by the sidepiece of counter-force side in electrohydraulic cylinder mounting base.

3. the assembling device of a kind of train heavy duty vehicle coupler polymeric buffer device according to claim 1, it is characterised in that：Institute The compression assembling mechanism stated includes middle jacking block (6), pressure-containing member, protective cover (7) and guide post (12), and pressure-containing member is welded on On steel structure platform (2), middle jacking block (6) is equipped with the steel structure platform (2) between pressure-containing member and electrohydraulic cylinder, it is middle Jacking block (6) is the assembling area of the placement buffer and pressure-containing member between, and is provided with outside assembling area dismountable anti- Shield (7), protective cover (7) bearing pin is connected on steel structure platform (2), and guide post (12) enters conduct for being inserted into buffer To positioning, the end face of middle jacking block (6) is provided with the centre bore passed through for guide post (12) activity；

Described pressure-containing member includes steel plate (8), limiting plate (13), top board (9), middle gusset (10) and side gusset (11), top board (9) be fixedly mounted on vertically on steel structure platform (2), top board (9) front end face towards electrohydraulic cylinder, top board (9) rear end face Middle part is fixedly connected steel structure platform (2) by two middle gussets (10), and the both sides of top board (9) rear end face respectively pass through side gusset (11) steel structure platform (2) is fixedly connected, the centre of top board (9) end face is provided with for the through hole through guide post (12), top board (9) corner of end face is provided with the through hole run through for the bolt (14) of the buffer；

Middle gusset (10) upper end extends to the assembling area, and forms the elongated end for extending to assembling area back side top, is in Γ types, and be fixedly connected with steel plate (8) in the bottom surface of elongated end, steel plate (8) is used as buffer height is spacing and security protection； The both sides of top board (9) front end face are respectively provided with limiting plate (13), and limiting plate (13) is used as buffer or so is spacing and security protection.

4. the assembling device of a kind of train heavy duty vehicle coupler polymeric buffer device according to claim 3, it is characterised in that：Institute Steel plate (8) and middle gusset (10) elongated end welding stated, described limiting plate (13) are welded with top board (9) and steel structure platform (2) Connect.

5. the assembling device of a kind of train heavy duty vehicle coupler polymeric buffer device according to claim 3, it is characterised in that：Institute Guide post (12) diameter stated is identical with the mandrel (15) in the buffer, and guide post (12) two ends have chamfering.