CN221192785U - Lightweight tamping mechanism - Google Patents
Lightweight tamping mechanism Download PDFInfo
- Publication number
- CN221192785U CN221192785U CN202322349978.6U CN202322349978U CN221192785U CN 221192785 U CN221192785 U CN 221192785U CN 202322349978 U CN202322349978 U CN 202322349978U CN 221192785 U CN221192785 U CN 221192785U
- Authority
- CN
- China
- Prior art keywords
- pick arm
- lightweight
- box body
- shaped
- eccentric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The utility model relates to a tamping device, in particular to a lightweight tamping mechanism, and belongs to the technical field of rail transit. The main body of the utility model is a W-shaped box body, the left end and the right end of the box body are respectively provided with a guide sleeve forming a vertical moving pair with a guide piece, the middle part of the W-shaped box body upwards extends out of an eccentric crankshaft part supporting structure, and the middle parts of a left pick arm and a right pick arm are respectively hinged between the left end and the right end and the middle part; the eccentric crankshaft part comprises eccentric crankshafts which respectively form a hinged pair with the inner ends of the cylinder bodies of the left clamping cylinder and the right clamping cylinder; the left clamping cylinder and the right clamping cylinder comprise left piston rods and right piston rods, the overhanging ends of which are respectively hinged with the upper parts of the left pick arm and the right pick arm; the lower parts of the left pick arm and the right pick arm are respectively provided with a pair of pick feet which are used for crossing a strand of steel rail. The W-shaped box body obviously reduces the vertical height of the whole tamping mechanism, is convenient to form a light tamping device after being assembled with a frame, and is particularly suitable for line maintenance with short track idle time between a front train and a rear train.
Description
Technical Field
The utility model relates to a tamping device, in particular to a lightweight tamping mechanism, and belongs to the technical field of rail transit.
Background
A typical structure of a tamping device for railway maintenance is disclosed in China patent literature with application number CN208563006U and name of an adjustable distance tamping device, and comprises a box body and a guide post penetrating through the box body, wherein an inner side assembling plate is arranged on the upper portion of the box body, a single-lug oil cylinder is arranged on one side of the inner side assembling plate, a fork-shaped oil cylinder is arranged on the other side of the inner side assembling plate, widening blocks are arranged on one sides of the single-lug oil cylinder and the fork-shaped oil cylinder, an eccentric wheel is arranged in the middle of the box body, a vibrating frame is fixedly connected to the lower portion of the eccentric wheel, a right tamping pick arm and a left tamping pick arm are arranged on the vibrating frame, tamping pick arms are connected to the lower sides of the right tamping pick arm and the left tamping pick arm, an oil tank is fixedly arranged on the upper portion of the box body, the oil tank is fixedly arranged on the mounting plate, and the oil tank is fixedly arranged through a hexagon bolt, and the inner side assembling plate is used for fixing two adjacent tamping devices. Long-term practice shows that the traditional tamping device has the defects of large volume, heavy weight and inconvenient transfer; the structure of the oil cylinder is characterized in that the guiding position is concentrated at the rear side (near the eccentric crankshaft) of the box body far away from the plane of the clamping oil cylinder, so that deflection moment is easy to generate to influence structural stability, and oil leakage faults are easy to be caused by unbalanced stress of the oil cylinder. When in practical application, the device is required to be installed on a bearing rack of a large-scale tamping car to be transported to a tamping operation site, the operation cost is high, the period is long, busy line resources are required to be occupied for a long time, and the rapid maintenance requirement of regional small-range lines is difficult to meet.
Disclosure of utility model
The utility model aims at: aiming at the defects of the prior art, through structural improvement, the lightweight tamping mechanism which is compact in structure, light in weight and convenient to transfer is provided, so that conditions are created for meeting the rapid maintenance requirements of regional small-range lines.
In order to achieve the above purpose, the basic technical scheme of the lightweight tamping mechanism of the utility model is as follows: the left and right ends of the box body are respectively provided with a guide sleeve forming a vertical moving pair with a guide piece, the middle part of the W-shaped box body upwards extends out of an eccentric crankshaft part supporting structure, and the middle parts of a left pick arm and a right pick arm are respectively hinged between the left and right ends and the middle part;
the eccentric crankshaft part comprises eccentric crankshafts which respectively form a hinged pair with the inner ends of the cylinder bodies of the left clamping cylinder and the right clamping cylinder; the left clamping cylinder and the right clamping cylinder comprise left piston rods and right piston rods, the overhanging ends of which are respectively hinged with the upper parts of the left pick arm and the right pick arm; the lower parts of the left pick arm and the right pick arm are respectively provided with a pair of pick feet which are used for crossing a strand of steel rail.
The W-shaped box body obviously reduces the vertical height of the whole tamping mechanism, so that the tamping mechanism has compact structure and light weight, is convenient to assemble with a frame to form a light tamping device, is connected with an excavator boom for use, greatly improves the operation efficiency due to convenient transportation, and is particularly suitable for line maintenance with short track idle time (short 'skylight' operation time) between a front train and a rear train. And moreover, the left and right symmetrical W-shaped box bodies and the guide structures at the two ends of the W-shaped box bodies effectively avoid unbalanced load during operation and adverse influence on the stability of tamping operation.
During the operation, the mechanical forced vibration generated by the rotation of the eccentric crank shaft during the tamping operation enables the left pick arm and the right pick arm to drive the pick feet to generate reciprocating swinging motion through the hydraulic transformation of the left clamping cylinder and the right clamping cylinder, the upper ends of the left pick arm and the right pick arm are pushed to do reciprocating opening and closing clamping motion, a pair of pick feet respectively arranged at the bottoms of the left pick arm and the right pick arm are spanned on the steel rail, and meanwhile, the ballasts at the two sides of the steel rail are tamped.
The utility model is further perfected as follows:
the eccentric crankshaft part supporting structure is a U-shaped bracket with a supporting hole. The axes of the two supporting holes of the U-shaped bracket are vertical to the axial direction of the eccentric crankshaft.
The box body is composed of a W-shaped lower box body and an upper box body which is fixedly connected with the middle upper part of the lower box body in a closing way.
The lower box comprises two W-shaped plates, wherein the middle upper part of the W-shaped plates is fixedly connected with the two W-shaped plates through a U-shaped plate, the two W-shaped plates are arranged in parallel and perpendicular to the axis of the eccentric crankshaft, and the upper ends of the two sides of the U-shaped plates are respectively fixedly connected with a semicircular concave bearing mounting seat.
The upper box body comprises two arched beams, the lower ends of which are fixedly connected with semicircular concave bearing buckling seats respectively; the bearing mounting seat and the bearing buckling seat are buckled to form two coaxial buckling holes.
The W-shaped plate is formed by connecting or fixedly connecting two V-shaped parts, the bottom of each V-shaped part is provided with a corresponding coaxial through hole fixedly connected with one of two ends of the pick arm hinge sleeve, and the inner side edge part of one of the two V-shaped parts is provided with a coaxial through hole fixedly connected with one of two ends of the lifting oil cylinder mounting sleeve.
The outer ends of the V-shaped parts of the W-shaped plates are respectively fixedly connected with a left vertical guide sleeve and a right vertical guide sleeve, and the central axes of the vertical guide sleeves at the left end and the right end and the axial leads of the left clamping oil cylinder and the right clamping oil cylinder are positioned in the same plane vertical to the axial line of the eccentric crankshaft.
The bottom of the V-shaped part of the W-shaped plate is fixedly connected with a left pick arm hinge sleeve and a right pick arm hinge sleeve respectively, and one side, close to one of the two pick arm hinge sleeves, of the middle part of the protrusion formed by the joint of the V-shaped part of the lower box body W-shaped plate is fixedly connected with a lifting oil cylinder mounting sleeve.
The central axes of the pick arm hinged sleeve and the lifting oil cylinder mounting sleeve are parallel to the axial direction of the eccentric crankshaft.
The pick arm comprises two vertical plates with upper end holes and middle holes, and two sides of the lower ends of the two vertical plates are respectively connected with the arch bridge-shaped plates into a whole.
And tamping pick installation bases with installation holes are welded at two ends of the arch bridge-shaped plate respectively and are used for fixedly installing a pair of pick feet crossing a steel rail.
The upper end holes of the left pick arm and the right pick arm are respectively hinged with the overhanging ends of the left clamping cylinder and the right clamping cylinder, and the middle holes of the left pick arm and the right pick arm are respectively hinged with the two bottoms of the lower box body.
A perforated locking plate is fixedly connected between the upper ends of two bow beams which are relatively parallel and parallel to the axis of the eccentric crankshaft; the locking plate is used for matching with a locking interface of the light-weight tamping mechanism on the frame carrying the light-weight tamping mechanism and is connected through a pin shaft.
The eccentric crank shaft part comprises eccentric crank shafts which respectively form a hinged pair with the inner ends of the cylinder bodies of the left clamping cylinder and the right clamping cylinder through eccentric sections with different phases.
The two ends of the eccentric crankshaft are non-eccentric coaxial support sections, and the eccentric crankshaft is rotatably arranged in the middle of the box body through a bearing.
The eccentric sections at the joint of the eccentric crankshafts and the left and right clamping cylinders respectively have 180-degree phase difference. Although the left pick arm and the right pick arm with smaller phase difference or phase difference can swing in the same direction or basically the same direction to drive the tamping, the cross driving vibration with 180 degrees of phase difference has ideal dynamic balance, and is more beneficial to keeping the stability of the tamping operation.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present utility model.
Fig. 2 is a schematic perspective exploded view of the main part of the embodiment of fig. 1.
Fig. 3 is a schematic perspective view of the case of the embodiment of fig. 1.
Fig. 4 is a schematic perspective view of the lower case of the embodiment of fig. 1.
Fig. 5 is a schematic perspective view of the upper case of the embodiment of fig. 1.
Fig. 6 is a perspective view of the pick arm of the embodiment of fig. 1.
Fig. 7 is a partially exploded perspective view of the clamp cylinder of the embodiment of fig. 1.
Fig. 8 is a schematic perspective view of a frame-type tamping device employing the embodiment of fig. 1.
Fig. 9 is a schematic view of a ballast tamping apparatus with an excavator employing the tamping device of fig. 8.
Description of the embodiments
Examples
The basic structure of the lightweight tamping mechanism unit of the embodiment is shown in fig. 1 and 2, a substantially symmetrical box body 1-1 is in a W shape, the left and right ends are respectively welded with a vertical guide sleeve 1-1-1-5,W which forms a vertical moving pair with a guide post 6-2 serving as a guide piece, the middle part of the vertical guide sleeve extends upwards to form an eccentric crankshaft part supporting structure, the supporting structure is specifically a U-shaped bracket with a supporting hole, the eccentric crankshaft part 1-2 is supported, and the middle parts of a left pick arm 1-5 and a right pick arm 1-5 are respectively hinged between the left and right ends and the middle part. The eccentric crank shaft part 1-2 drives the upper ends of the left pick arm 1-5 and the right pick arm 5 through the left clamping oil cylinder 1-3 and the right clamping oil cylinder 1-4 respectively. The axial lines of the left and right clamping cylinders 1-3 and 1-4 are positioned in the same plane perpendicular to the axis of the eccentric crankshaft.
The more specific structure of the box body 1-1 is shown in figure 3, and consists of a W-shaped lower box body 1-1-1 and an upper box body 1-1-2 fixedly connected with the upper middle part of the lower box body 1-1 in a butt joint way.
The lower box body 1-1-1 is shown in fig. 4, and comprises two W-shaped plates 1-1-1-1 which are welded at the middle and upper parts through U-shaped plates 1-1-1-6 and are arranged relatively parallel and perpendicular to the axis of the eccentric crankshaft, and bearing mounting seats 1-1-1-3 with semicircular recesses are respectively welded at the upper ends of two sides of the U-shaped plates 1-1-1-6. The W-shaped plate 1-1-1 is formed by connecting two V-shaped parts, and the lowest parts of the two V-shaped parts (namely the bottoms of the V-shapes) are respectively welded with a pick arm hinge sleeve 1-1-1-2 for hinging the middle parts of the left pick arm 1-5 and the right pick arm 5. A lifting cylinder mounting sleeve 1-1-1-4 is welded at one side of the middle part of the protrusion of the lower box body 1-1 and close to one of the two pick arm hinge mounting sleeves 1-1-1-2, and vertical guide sleeves 1-1-1-5 are respectively welded at two outer ends of the W-shaped plate 1-1-1-1. The central axes of the pick arm hinge sleeves 1-1-1-2 and the lift cylinder mounting sleeves 1-1-4 are arranged parallel to the axial direction of the vibrating shaft (i.e., eccentric crankshaft) (the vibrating shaft is placed substantially parallel to the direction of the tie, i.e., the transverse direction of the rail). The W-shaped plate adopted by the lower box body 1-1-1 is provided with pick arm hinged sleeves at two bottom ends thereof, so that the overall height of the tamping mechanism 1 can be effectively reduced, the structure is more compact, unnecessary guide length is reduced, and better guide effect is obtained.
The upper box body 1-1-2 is shown in fig. 5, and comprises two bow beams 1-1-2-2 with semicircular concave bearing buckling seats 1-1-2-1 welded at the lower ends, a locking plate 1-1-2-4 with a perforation is welded between the upper ends of the two bow beams 1-1-2-2 which are relatively parallel and parallel to the axis of the eccentric crankshaft, and a stop plate 1-1-2-3 for limiting the lifting height of the tamping mechanism is welded on the outer side surface of one bow beam 1-1-2-2. The locking plates 1-1-2-4 are matched with the locking interfaces 2-6 of the tamping mechanism on the frame and are connected through pin shafts, so that the tamping mechanism 1 is prevented from falling down when the tamping mechanism is not used.
The concrete structure of the pick arm 1-5 is shown in fig. 6, the upper end is respectively provided with an upper end hole 1-5-1, and two sides of the lower end of two vertical plates 1-5-2 respectively provided with a middle hole in the middle are respectively connected with an arch bridge plate 1-5-4 into a whole, and two ends of the arch bridge plate 1-5-4 are respectively welded with a tamping pick mounting seat 1-5-5 provided with a mounting hole for fixedly mounting a pair of pick feet 1-6 crossing a steel rail. The lower portions of the left and right pick arms 1-5 are each provided with a pair of pick legs 1-6 (see fig. 1) which span a strand of rail.
The eccentric crankshaft part 1-2 includes eccentric crankshafts 1-2' (see fig. 2 and 7) forming hinge pairs with inner ends of cylinder bodies 1-3-1 and 1-4-1 of the left and right clamping cylinders 1-3 and 1-4, respectively. The left and right clamping cylinders 1-3, 1-4 comprise left and right piston rods 1-3-2, 1-4-2 with overhanging ends respectively hinged with the upper parts of the left and right pick arms 1-5. The bearing mounting seat 1-1-1-3 of the lower box body 1-1 and the bearing buckling seat 1-1-2-1 of the upper box body 1-1-2 are buckled to form two coaxial buckling holes for hinging the eccentric crankshaft 1-2' of the eccentric crankshaft component 1-2. The two ends 1-2 'of the eccentric crankshaft 1-2' of the eccentric crankshaft part 1-2 are non-eccentric coaxial supporting sections, and are rotatably supported on the bearing mounting seat 1-1-1-3 of the lower box body 1-1 and the bearing buckling seat 1-1-2-1 of the upper box body 1-1-2 through cylindrical roller bearings to form two coaxial buckling holes. The eccentric sections at the joint of the eccentric crankshafts 1-2' and the single-lug clamping cylinders 1-3 serving as left clamping cylinders and the double-lug clamping cylinders 1-4 serving as right clamping cylinders respectively have eccentricities with 180 degrees of phase difference, so that vibration is generated when the eccentric crankshafts rotate, and is transmitted to corresponding pick arms through the single-lug clamping cylinders 1-3 and the double-lug clamping cylinders 1-4, and the forced driving vibration of the eccentric crankshafts is enabled to generate tamping action by utilizing the asynchronous and voltage stabilizing principles. The asynchronous principle refers to that in the clamping operation process after the tamping pick is inserted into the ballast, the compaction degree of the ballast bed is different due to the fact that the pressure of the clamping oil cylinders is consistent, so that the resistance of the ballast to the tamping pick is different, the clamping speed and the distance of the tamping pick are different, and the voltage stabilizing principle refers to that when the resistance of the ballast bed and the clamping force of the tamping pick reach balance, the clamping movement is stopped, and the ballast reaches the corresponding compaction degree. The stroke of the tamping pick can be automatically adjusted according to the actual compaction degree of the ballasts at each position of the ballast bed by combining asynchronization and voltage stabilization, and finally, each clamping position reaches the same compaction degree of the ballasts. It is easily conceivable that a double-lug clamping cylinder may be used as the left clamping cylinder and a single-lug clamping cylinder may be used as the right clamping cylinder.
As shown in fig. 8, the frame-type tamping device adopting the lightweight tamping mechanism of the embodiment is characterized in that a pair of front and rear vertical guide post members 6 are respectively arranged on the left and right sides of a trapezoidal frame 2 with a large lower part and a small upper part, a pair of tamping mechanisms 1 which are driven to lift by a lifting cylinder member 3 and form a lifting and moving pair with the front and rear vertical guide post members 6 are respectively arranged on the left and right sides of the interior of the frame 2, and a rail clamping hook member 4 and a running wheel member 5 which mainly consists of a running wheel 5-1 are arranged at the bottom of the frame 2.
The ballast tamping apparatus with excavator using the frame type tamping device is shown in fig. 9, and the excavator WJ is connected with the frame type tamping device through the swing joint 2-1 of the overhanging end of the suspension arm WJ-1 and the center of the top of the terrace-shaped frame 2.
Practice shows that the tamping mechanism solves the deflection moment problem caused by concentration of the guide position on the rear side of the box body and separation from the clamping oil cylinder in the prior art, has small volume and light weight, and the approximately bilateral symmetrical W-shaped box body and reasonable guide structures at the two ends of the box body lead the box body to be balanced in stress and stable in structure, is not easy to generate unbalanced load, has good operation stability, obviously shortens the vertical height and is more compact in structure. The frame type tamping device adopting the light tamping mechanism has the advantages of compact overall structure, good rigidity, high strength, strong bearing capacity, accurate positioning, uniform stress, stability, reliability, wide applicability and the like. The frame type tamping device of the lightweight tamping mechanism can be quickly connected with the suspension arm of the excavator, the excavator provides electric and hydraulic power for the tamping device, an operator can realize automatic operation of tamping equipment in a cab of the excavator, and the excavator can realize quick up-and-down and transition, so that the frame type tamping device is particularly suitable for line maintenance with short operation time of a skylight, and meets the requirement of quick maintenance of railway lines.
In addition to the embodiments described above, other embodiments of the utility model are possible. All technical schemes formed by equivalent substitution or equivalent transformation fall within the protection scope of the utility model.
Claims (16)
1. A lightweight tamper characterized by comprising: the left and right ends of the box body are respectively provided with a guide sleeve forming a vertical moving pair with a guide piece, the middle part of the W-shaped box body upwards extends out of an eccentric crankshaft part supporting structure, and the middle parts of a left pick arm and a right pick arm are respectively hinged between the left and right ends and the middle part;
the eccentric crankshaft part comprises eccentric crankshafts which respectively form a hinged pair with the inner ends of the cylinder bodies of the left clamping cylinder and the right clamping cylinder; the left clamping cylinder and the right clamping cylinder comprise left piston rods and right piston rods, the overhanging ends of which are respectively hinged with the upper parts of the left pick arm and the right pick arm; the lower parts of the left pick arm and the right pick arm are respectively provided with a pair of pick feet which are used for crossing a strand of steel rail.
2. The lightweight tamper as in claim 1, wherein: the eccentric crankshaft part supporting structure is a U-shaped bracket with a supporting hole.
3. The lightweight tamper as in claim 1, wherein: the box body is composed of a W-shaped lower box body and an upper box body which is fixedly connected with the middle upper part of the lower box body in a closing way.
4. A lightweight tamper according to claim 3, wherein: the lower box comprises two W-shaped plates, wherein the middle upper part of the W-shaped plates is fixedly connected with the two W-shaped plates through a U-shaped plate, the two W-shaped plates are arranged in parallel and perpendicular to the axis of the eccentric crankshaft, and the upper ends of the two sides of the U-shaped plates are respectively fixedly connected with a semicircular concave bearing mounting seat.
5. A lightweight tamper according to claim 3, wherein: the upper box body comprises two arched beams, the lower ends of which are fixedly connected with semicircular concave bearing buckling seats respectively; the bearing mounting seat and the bearing buckling seat are buckled to form two coaxial buckling holes.
6. The lightweight tamper mechanism of claim 4, wherein: the W-shaped plate is formed by connecting or fixedly connecting two V-shaped parts, the bottom of each V-shaped part is provided with a corresponding coaxial through hole fixedly connected with one of two ends of the pick arm hinge sleeve, and the inner side edge part of one of the two V-shaped parts is provided with a coaxial through hole fixedly connected with one of two ends of the lifting oil cylinder mounting sleeve.
7. The lightweight tamper mechanism of claim 6, wherein: the outer ends of the V-shaped parts of the W-shaped plates are respectively fixedly connected with a left vertical guide sleeve and a right vertical guide sleeve, and the central axes of the vertical guide sleeves at the left end and the right end and the axial leads of the left clamping oil cylinder and the right clamping oil cylinder are positioned in the same plane vertical to the axial line of the eccentric crankshaft.
8. The lightweight tamper mechanism of claim 7, wherein: the bottom of the V-shaped part of the W-shaped plate is fixedly connected with a left pick arm hinge sleeve and a right pick arm hinge sleeve respectively, and one side, close to one of the two pick arm hinge sleeves, of the middle part of the protrusion formed by the joint of the V-shaped part of the lower box body W-shaped plate is fixedly connected with a lifting oil cylinder mounting sleeve.
9. The lightweight tamper mechanism of claim 6, wherein: the central axes of the pick arm hinged sleeve and the lifting oil cylinder mounting sleeve are parallel to the axial direction of the eccentric crankshaft.
10. The lightweight tamper mechanism of claim 5, wherein: the pick arm comprises two vertical plates with upper end holes and middle holes, and two sides of the lower ends of the two vertical plates are respectively connected with the arch bridge-shaped plates into a whole.
11. The lightweight tamper mechanism of claim 10, wherein: and tamping pick installation bases with installation holes are welded at two ends of the arch bridge-shaped plate respectively and are used for fixedly installing a pair of pick feet crossing a steel rail.
12. The lightweight tamper of claim 11, wherein: the upper end holes of the left pick arm and the right pick arm are respectively hinged with the overhanging ends of the left clamping cylinder and the right clamping cylinder, and the middle holes of the left pick arm and the right pick arm are respectively hinged with the two bottoms of the lower box body.
13. The lightweight tamper mechanism of claim 12, wherein: a perforated locking plate is fixedly connected between the upper ends of two bow beams which are relatively parallel and parallel to the axis of the eccentric crankshaft; the locking plate is used for matching with a locking interface of the light-weight tamping mechanism on the frame carrying the light-weight tamping mechanism and is connected through a pin shaft.
14. The lightweight tamper as in claim 1, wherein: the eccentric crank shaft part comprises eccentric crank shafts which respectively form a hinged pair with the inner ends of the cylinder bodies of the left clamping cylinder and the right clamping cylinder through eccentric sections with different phases.
15. The lightweight tamper mechanism of claim 14, wherein: the two ends of the eccentric crankshaft are non-eccentric coaxial support sections, and the eccentric crankshaft is rotatably arranged in the middle of the box body through a bearing.
16. The lightweight tamper mechanism of claim 15, wherein: the eccentric sections at the joint of the eccentric crankshafts and the left and right clamping cylinders respectively have 180-degree phase difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322349978.6U CN221192785U (en) | 2023-08-31 | 2023-08-31 | Lightweight tamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322349978.6U CN221192785U (en) | 2023-08-31 | 2023-08-31 | Lightweight tamping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221192785U true CN221192785U (en) | 2024-06-21 |
Family
ID=91488295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322349978.6U Active CN221192785U (en) | 2023-08-31 | 2023-08-31 | Lightweight tamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221192785U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117166297A (en) * | 2023-08-31 | 2023-12-05 | 常州中车瑞泰装备科技有限公司 | Tamping unit, frame-type tamping device comprising such a unit, and ballast tamping installation |
| CN117867903A (en) * | 2023-08-31 | 2024-04-12 | 常州中车瑞泰装备科技有限公司 | Frame type tamping device and railway ballast tamping machine adopting same |
-
2023
- 2023-08-31 CN CN202322349978.6U patent/CN221192785U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117166297A (en) * | 2023-08-31 | 2023-12-05 | 常州中车瑞泰装备科技有限公司 | Tamping unit, frame-type tamping device comprising such a unit, and ballast tamping installation |
| CN117867903A (en) * | 2023-08-31 | 2024-04-12 | 常州中车瑞泰装备科技有限公司 | Frame type tamping device and railway ballast tamping machine adopting same |
| CN117867903B (en) * | 2023-08-31 | 2024-09-24 | 常州中车瑞泰装备科技有限公司 | Frame type tamping device and railway ballast tamping machine adopting same |
| CN117166297B (en) * | 2023-08-31 | 2024-11-26 | 常州中车瑞泰装备科技有限公司 | Tamping unit, frame-type tamping device and ballast tamping equipment containing the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN221192785U (en) | Lightweight tamping mechanism | |
| CN207919375U (en) | Front leg strut for large-tonnage prestressed concrete box girder construction equipment Bridge Erector | |
| CN110952550B (en) | Suspended self-supporting pile driving method and pile driver | |
| CN108645632B (en) | A multifunctional suspension test bench for simulating multiple road conditions | |
| CN111088756A (en) | Segmental assembling bridge girder erection machine | |
| CN117166297B (en) | Tamping unit, frame-type tamping device and ballast tamping equipment containing the same | |
| CN109629350B (en) | Prestressed seamless connection concrete track beam for empty iron and construction method thereof | |
| CN201217612Y (en) | Aerial rail U shaped beam hoisting device | |
| CN201799576U (en) | Core setting jig | |
| CN213358344U (en) | Adjustable bracket for cast-in-situ beam | |
| CN211689939U (en) | Segmental assembling bridge girder erection machine | |
| CN217867806U (en) | Supplementary gantry crane equipment of municipal pipeline engineering construction | |
| CN116499722A (en) | Rotation fatigue test device and method for four-bar linkage traction mechanism | |
| CN216075525U (en) | Assembled rag bolt positioner | |
| CN214613644U (en) | Heightening optimized front supporting leg mounting device for bridge girder erection machine | |
| CN212477430U (en) | Wave form steel web SCC worker method hangs basket with hoisting accessory | |
| CN210975570U (en) | Operation platform for construction of large-section steel-concrete composite beam | |
| CN113235432A (en) | Heightening optimized front supporting leg mounting device for bridge girder erection machine | |
| CN219862398U (en) | Bottom die overturning type single-girder movable formwork for quick construction | |
| CN201068114Y (en) | Electrification railroad contact net bow support | |
| CN220150082U (en) | Walking wheel bearing structure for suspension bridge mobile construction platform | |
| CN220246705U (en) | Cantilever bridge fabrication machine main truss bearing structure and cantilever bridge fabrication machine | |
| CN216737325U (en) | Universal tower crane lower support | |
| CN220133644U (en) | 7-shaped cross-railway light portal frame | |
| CN115258982B (en) | A heavy tower crane boom structure based on improved steel pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |