CN201459546U - Vibration drive mechanism of tamping device - Google Patents

Abstract

The utility model discloses a vibration drive mechanism of a tamping device on a tamping wagon of railway maintenance machinery. The vibration drive mechanism comprises a box body, drive couplings, a first main bearing, a first vibration shaft and a first vibration shaft connecting bearing; two middle portion half main bearing supports are disposed on the box body; the vibration drive mechanism further comprises a second vibration shaft in series connection with the first vibration shaft by employing the couplings; the first vibration shaft and the second vibration shaft are both provided with three eccentric journal and respectively equipped with connecting bearings; an inner support and an outer support are provided with side portion haft main bearing supports and further disposed on the box body; main bearings are respectively mounted on the main shaft journals at two ends of the first vibration shaft and the second vibration shaft; the main bearings are respectively mounted on the box body; the first vibration shaft is connected with a first flywheel and the couplings; and the second vibration shaft is connected with a second flywheel and the couplings. The vibration drive mechanism has compact structure and convenient maintenance, and can meet operating requirements of four tamping devices of a three-sleeper tamping wagon upon three sleepers.

Description

Vibration drive mechanism of tamping device

technical field

The utility model relates to a railway road maintenance mechanical equipment, in particular to a vibration driving mechanism of a tamping vehicle.

Background technique

At present, there are mainly 08-32 and 09-32 type tamping cars that are widely used on my country's railways as large-scale road maintenance machinery double-pillow tamping cars for maintenance. The vibration driving mechanism of the tamping device has an eccentric vibration shaft, which is mainly installed on the box body through the main bearing and the main bearing race, and the main bearing is lubricated with thin oil. The size of the middle part of the vibration shaft of the prior art 09-32 type tamping device is the largest, and there are seven grades of size from the journal to both ends. In order to take into account the assembly and strength requirements, the design size of the middle journal is relatively large. Due to the use of thin oil Lubrication, the main bearing is connected with the box body through the main bearing seat ring, and the main bearing seat ring is equipped with a seal, which requires the main bearing seat hole size of the box body to be larger, so the longitudinal dimension of the box body is larger.

The three-sleeper continuous tamping stabilizer is one of the line tamping machines with the highest operating precision and efficiency and the most advanced performance in the world. It can tamp three sleepers at the same time. The three-sleeper tamping car has four tamping devices in total, and two tamping devices are arranged in the front and rear of the three sleepers on each side of the rail. Due to space constraints, the vibration-driven structure of the original tamping device can no longer meet the requirements and must be improved. , to meet the operation needs of the three-pillar tamping device.

Contents of the invention

The purpose of the utility model is to provide a vibration driving mechanism of a tamping device, which has a compact structure, is easy to maintain, better solves the problem of insufficient space, and satisfies the use requirements of four tamping devices for simultaneously tamping three sleepers.

In order to achieve the above object, the technical solution of the present invention is: a vibration driving mechanism of a tamping device, including a box body, a drive coupling, a first main bearing, a first vibration shaft and a first vibration shaft connection bearing, the box The body has two main bearing seats in the middle, and also includes the second vibration shaft. The first vibration shaft and the second vibration shaft are connected in series by a coupling. The first vibration shaft has three eccentric journals, and the three eccentric journals are installed There is the first vibration shaft connection bearing used to connect the oil cylinder, and there are three eccentric journals on the second vibration shaft, and the second vibration shaft connection bearing used to connect the oil cylinder is installed on the three eccentric journals. , Outer support, the inner and outer supports respectively have side main bearing seats, the first main bearings are respectively installed on the main bearing journals at the two ends of the first vibrating shaft, and the second main bearings are respectively installed on the main bearing journals at the two ends of the second vibrating shaft. The main bearings, the first main bearing are respectively installed in the corresponding middle main bearing seat and the side main bearing seat on the box body, and the second main bearings are respectively installed in the corresponding middle main bearing seat and side main bearing seat on the box body In the seat, the inner end of the first vibration shaft is equipped with a first flywheel, the first flywheel is connected with the coupling, the outer end of the second vibration shaft is equipped with a second flywheel, the side main bearing seat on the box body and The main bearing housings in the middle adopt the Huff structure.

In order to further meet the requirement of tamping three sleepers, the eccentric phase difference between the eccentric journal of the first vibrating shaft and the eccentric journal of the second vibrating shaft is 180°.

In order to ensure the phase requirements of the two vibrating shafts, the coupling is a spline coupling, including the first outer spline bushing, the second outer spline bushing, shaft retaining ring, inner spline bushing, positioning Screws and grease nozzles; the first external spline sleeve and the first vibration shaft are connected by a flat key, the second external spline sleeve and the second vibration shaft are connected by a flat key, and the inner spline sleeve is connected to the first vibration shaft. Spline engagement is adopted between the outer spline bushing and the second outer spline bushing, and positioning screws are used to position the inner spline bushing with the first outer spline bushing and the second outer spline bushing.

In order to control the lateral dimension of the vibration drive mechanism, the drive coupling includes claws arranged on the end face of the first flywheel, an elastic ring gear and a coupling with internal splines, wherein the elastic ring gear is connected to the claws and the shaft coupling respectively The joints are engaged, and the three constitute an elastic coupling.

In order to ensure safe use, the first flywheel and the second flywheel have flywheel guards on the outside respectively, and the flywheel guards are fixed on the inner and outer supports of the box body through their respective support arms.

The first main bearing, the second main bearing, the first vibration shaft connection bearing and the second vibration shaft connection bearing are all cylindrical roller bearings.

After adopting the above structure, since the second vibrating shaft is also included, the first vibrating shaft and the second vibrating shaft are connected in series by a coupling, and the side main bearing seat and the middle main bearing seat on the box adopt the Huff structure, On the premise of ensuring the strength of the vibrating shaft, the diameter of the main bearing gear of the vibrating shaft can be made smaller, and the diameter of the main bearing seat hole of the box is required to be reduced. The diameter of the main bearing seat hole is only 09-32 type tamping device box 2/3 of the main bearing seat hole of the main body, so that the longitudinal dimension of the box body is greatly compressed, which meets the operation requirements of the three sleeper tamping vehicle to arrange two tamping devices in the front and back of the three sleeper areas of each side rail, especially in maintenance Each vibrating shaft can be carried out separately, which is easy to assemble and disassemble, reduces the workload and reduces the cost; the two vibrating shafts are connected through a coupling, which has high strength, strong torque transmission capacity, accurate positioning, simple structure and easy assembly. Easy to disassemble. Furthermore, since the first flywheel is installed on the inner end of the first vibration shaft, and the second flywheel is installed on the outer end of the second vibration shaft, the moment of inertia of the vibration shaft is increased to make the vibration shaft run stably. In addition, the main bearing of the utility model adopts grease lubrication, cancels the main bearing race and sealing device in the prior art, simplifies the structure, eliminates the possible oil leakage problem of thin oil lubrication, and improves the reliability of the tamping device . The beneficial effects of the utility model are: the operation requirements of the four tamping devices of the three-sleeper tamping and stabilizing vehicle for the three sleepers are met, and the assembly and disassembly are convenient and the maintenance is convenient. The utility model can also be used for the vibration driving mechanism of the double-pillow tamping device, which can reduce the workload of maintenance and cost, solve the inertial quality problem of oil leakage in thin oil lubrication, and further improve the reliability of the double-pillow tamping device .

Description of drawings

Below in conjunction with the embodiment that accompanying drawing provides, the utility model is described in further detail.

Fig. 1 is the structural representation of the vibration driving mechanism of existing double pillow tamping device;

Fig. 2 is a structural representation of one of four tamping devices of the three-rest tamping car;

Fig. 3 is the right view of Fig. 2;

Fig. 4 is the sectional view of Fig. 2 along A-A line; That is, the structural representation of the vibration drive mechanism of the tamping device of the present utility model;

Fig. 5 is a structural schematic diagram of the first vibration axis in the utility model;

Fig. 6 is a structural schematic diagram of the second vibration axis in the utility model;

Fig. 7 is the structural representation of the shaft coupling in the utility model;

Fig. 8 is a structural schematic diagram of the first flywheel in the utility model;

Fig. 9 is a schematic structural view of the box body in the utility model;

Figure 10 and Figure 9 are cross-sectional views along line B-B.

Detailed ways

As shown in Figure 1, it is a structural schematic diagram of the vibration drive mechanism of the 09-32 type tamping device of the prior art. The vibration drive mechanism of each tamping device has only one vibration shaft 29, and the vibration shaft 29 has six eccentric shafts neck 29-1, each eccentric journal 29-1 is equipped with a connecting bearing 38 for connecting the oil cylinder, main bearing races 27, 31 are installed outside the main bearings 26, 28, and the main bearing races 27, 31 are respectively fastened by The parts are connected with the box body 30, the main bearing races 27, 31 are respectively equipped with seals 32, the joint surfaces of the main bearing races 27, 31 and the box body 30 are coated with sealant, and the main bearings 26, 28 are lubricated with thin oil Due to assembly requirements, the size of the middle part of the vibration shaft 29 is the largest. The elastic coupling 36 is connected to the flywheel 33 through screws 34 and washers 35. The hydraulic motor 37 drives the vibration shaft 29 to rotate through the elastic coupling 36.

As shown in Figures 2, 3, 4, 5, 6, 7, 8, 9, and 10, the vibration drive mechanism of the tamping device of the present utility model includes a casing 9, a drive coupling 14, a first main bearing 8 , 8', the first vibration shaft 10 and the first vibration shaft connection bearing 11, there are two middle main bearing seats 9-1, 9-2 on the box body 9, and also include the second vibration shaft 4, the first vibration shaft 10 The second vibrating shaft 4 is connected in series with the coupling 7, the first vibrating shaft 10 has three eccentric journals 10-1, and the first vibrating shaft connecting bearing 11 for connecting the oil cylinder is installed on the three eccentric journals 10-1 , there are three eccentric journals 4-1 on the second vibrating shaft 4, and the second vibrating shaft connecting bearing 5 for connecting the oil cylinder is installed on the three eccentric journals 4-1, and the box body 9 is also provided with inner and outer Supports 9-3, 9-4, inner and outer supports 9-3, 9-4 respectively have side main bearing seats 9-3-1, 9-4-1, main bearing shafts at both ends of the first vibrating shaft 10 The first main bearings 8, 8' are respectively installed on the neck 10-2, the second main bearings 3, 3' are respectively installed on the main bearing journals 4-2 at both ends of the second vibrating shaft 4, and the first main bearings 8, 8' They are respectively installed in the corresponding middle main bearing housing 9-1 and the side main bearing housing 9-3-1 on the box body 9, and the second main bearings 3 and 3' are respectively installed in the corresponding middle main bearing on the box body 9 In the seat 9-2 and in the side main bearing seat 9-4-1, the inner end of the first vibration shaft 10 is equipped with a first flywheel 13, the first flywheel 13 is connected with the coupling 14, and the second vibration shaft 4 The second flywheel 2 is installed at the outer end of the box body, and the side main bearing seats 9-3-1, 9-4-1 and the middle main bearing seats 9-1, 9-2 on the box body 9 all adopt the Huff structure .

As shown in Figures 4, 5, and 6, in order to further meet the use requirements for tamping three sleepers, the eccentric journal 10-1 of the first vibrating shaft 10 and the eccentric journal 4-1 of the second vibrating shaft 4 The phase difference is 180°.

As shown in Figures 4 and 7, in order to ensure the phase requirements of the two vibrating shafts, the coupling 7 is a spline coupling, including a first external spline sleeve 7-1, a second external spline sleeve 7-5. Shaft retaining ring 7-4, inner spline sleeve 7-3, positioning screw 7-2 and grease nozzle 7-6; between the first outer spline sleeve 7-1 and the first vibration shaft 10 Adopt flat key 6' to connect, adopt flat key 6 to connect between the second external spline shaft sleeve 7-5 and the second vibrating shaft 4, internal spline sleeve 7-3 and first external spline shaft sleeve 7-1, Spline engagement is adopted between the second external spline shaft sleeve 7-5, and the set screw 7-2 is used to make the internal spline sleeve 7-3 and the first external spline shaft sleeve 7-1, the second external spline shaft Set 7-5 positioning.

As shown in Figures 9, 10 and 4, there is a pick arm pin hole 9-5 for installing the inner and outer pick arms on the lower support beam of the box body 9, and the inner mounting plate 9-3-2 is used to fix the support arm 15 and the hydraulic motor 16, Outboard mounting plate 9-4-2 is used for fixing support arm 0.

As shown in Figures 4 and 8, in order to control the lateral dimension of the vibration drive mechanism, the drive coupling 14 includes a claw 13-1 arranged on the end face of the first flywheel 13, an elastic ring gear 14-1 and a ring with an inner ring. The coupling 14-2 of the key, wherein the elastic ring gear 14-1 meshes with the claw 13-1 and the coupling 14-2 respectively, and the three constitute an elastic coupling. Since the end face of the first flywheel 13 is processed with the claw 13-1 of the coupling, it forms an elastic coupling with the elastic ring gear 14-1 and the coupling 14-2 with internal splines, which simplifies the coupling The structure eliminates the connecting bolts, washers and other parts between the coupling and the flywheel in the prior art, so as to achieve the purpose of compressing the transverse dimension of the vibration driving mechanism.

As shown in Figure 4, in order to ensure the safety of use, the first flywheel 13 and the second flywheel 2 have flywheel guards 12, 1 on the outside respectively, and the flywheel guards 12, 1 are fixed on the box by respective support arms 15, 0 On the interior and exterior support 9-3,9-4 of 9. The first flywheel 13 and the second flywheel 2 are respectively connected with the corresponding first vibration shaft 10 and the second vibration shaft 4 by means of flat keys.

As shown in Figure 4, the first main bearings 8, 8', the second main bearings 3, 3', the first vibration shaft connection bearing 11 and the second vibration shaft connection bearing 5 are all cylindrical roller bearings.

The utility model work process is as follows, as shown in Figure 2,3,4, its main working principle: install hydraulic motor 16 at support arm 15 before work. The hydraulic motor 16 drives the first vibration shaft 10 and the second vibration shaft 4 to rotate through the elastic coupling 14, and the eccentric journals 10-1 and 4-1 of the first vibration shaft 10 and the second vibration shaft 4 drive the inner Oil cylinders 17,18 make the inner oil cylinders 17,18 realize reciprocating motion, and the inner oil cylinders 17,18 promote the inner pick arms 20,19 to swing left and right through their piston rods, so that the inner pounding picks 21 mounted on the inner pick arms 20,19 , 22 produce swing-type forced vibration. The inner oil cylinder 17 is hinged with the outer oil cylinder 23, and the inner oil cylinder 17 drives the outer pick arm 24 to swing left and right by the piston rod of the outer oil cylinder 23, so that the outer hammer 25 mounted on the outer pick arm 24 produces a swinging forced vibration equally.

Claims (6)

1. the vibratory drive mechanism of a tamping unit, comprise casing (9), drive shaft coupling (14), first base bearing (8,8 '), first vibrating shaft (10) and the first vibrating shaft connection bearing (11), have two middle part main bearing seats (9-1,9-2) on the casing (9), it is characterized in that:

A, also comprise second vibrating shaft (4), first vibrating shaft (10) and second vibrating shaft (4) adopt shaft coupling (7) to be in series,

B, first vibrating shaft (10) have three road rotor journals (10-1), the first vibrating shaft connection bearing (11) that is used to connect oil cylinder is installed on the three road rotor journals (10-1), three road rotor journals (4-1) are arranged on second vibrating shaft (4), the second vibrating shaft connection bearing (5) that is used to connect oil cylinder is installed on the three road rotor journals (4-1)

C, in on casing (9), also being provided with, external support (9-3,9-4), in, external support (9-3, has sidepiece main bearing seat (9-3-1 9-4) respectively, 9-4-1), on the main bearing journal (10-2) at first vibrating shaft (10) two ends first base bearing (8 is installed respectively, 8 '), on the main bearing journal (4-2) at second vibrating shaft (4) two ends second base bearing (3 is installed respectively, 3 '), first base bearing (8,8 ') be installed in respectively in the upward corresponding middle part main bearing seat (9-1) of casing (9) and in the sidepiece main bearing seat (9-3-1), second base bearing (3,3 ') be installed in respectively in the upward corresponding middle part main bearing seat (9-2) of casing (9) and in the sidepiece main bearing seat (9-4-1)

The inner end of d, first vibrating shaft (10) is equipped with first flywheel (13), and first flywheel (13) is connected with shaft coupling (14),

Second flywheel (2) is equipped with in the outer end of e, second vibrating shaft (4),

Sidepiece main bearing seat (9-3-1,9-4-1) and middle part main bearing seat (9-1,9-2) on f, the casing (9) all adopt Hough formula structure.

2. the vibratory drive mechanism of tamping unit according to claim 1, it is characterized in that: the rotor journal (10-1) of described first vibrating shaft (10) is 180 ° with the eccentric phasic difference mutually of the rotor journal (4-1) of second vibrating shaft (4).

3. the vibratory drive mechanism of tamping unit according to claim 1, it is characterized in that: described shaft coupling (7) is a spline coupling, comprises the first external splines axle sleeve (7-1), the second external splines axle sleeve (7-5), shaft block ring (7-4), inner spline housing (7-3), dog screw (7-2) and pump nozzle (7-6); Adopt flat key (6 ') to be connected between the first external splines axle sleeve (7-1) and first vibrating shaft (10), adopt flat key (6) to be connected between the second external splines axle sleeve (7-5) and second vibrating shaft (4), adopt spline engagement between the inner spline housing (7-3) and the first external splines axle sleeve (7-1), the second external splines axle sleeve (7-5), and adopt dog screw (7-2) to make inner spline housing (7-3) and the first external splines axle sleeve (7-1), the second external splines axle sleeve (7-5) location.

4. according to the vibratory drive mechanism of claim 1 or 2 or 3 described tamping units, it is characterized in that: described driving shaft coupling (14) comprises the pawl (13-1) that is located at first flywheel (13) end face, resilience gear ring (14-1) and have the shaft coupling (14-2) of internal spline, wherein resilience gear ring (14-1) meshes with pawl (13-1) and shaft coupling (14-2) respectively, and the three constitutes yielding coupling.

5. the vibratory drive mechanism of tamping unit according to claim 1, it is characterized in that: described first flywheel (13) and second flywheel (2) outside have flywheel protective cover (12,1) respectively, and flywheel protective cover (12,1) is fixed in the inside and outside supporting (9-3,9-4) of casing (9) by supporting arm (15,0) separately.

6. the vibratory drive mechanism of tamping unit according to claim 1, it is characterized in that: described first base bearing (8,8 '), second base bearing (3,3 '), the first vibrating shaft connection bearing (11) and the second vibrating shaft connection bearing (5) are cylinder roller bearing.

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