CN110329902B - Multi-sleeper grabbing lifting appliance with uniform distribution function - Google Patents
Multi-sleeper grabbing lifting appliance with uniform distribution function Download PDFInfo
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- CN110329902B CN110329902B CN201910575567.4A CN201910575567A CN110329902B CN 110329902 B CN110329902 B CN 110329902B CN 201910575567 A CN201910575567 A CN 201910575567A CN 110329902 B CN110329902 B CN 110329902B
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- sleeper
- centering
- sling
- hinged
- fixedly connected
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- 238000009827 uniform distribution Methods 0.000 title claims abstract description 19
- 241001669679 Eleotris Species 0.000 claims abstract description 97
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/28—Duplicate, e.g. pivoted, members engaging the loads from two sides
- B66C1/30—Duplicate, e.g. pivoted, members engaging the loads from two sides and also arranged to grip the sides of the loads
- B66C1/32—Duplicate, e.g. pivoted, members engaging the loads from two sides and also arranged to grip the sides of the loads of piled or stacked articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention discloses a multi-grab sleeper sling with a uniform distribution function, wherein a plurality of sleeper slings are connected to a main beam in a sliding way, and each sleeper sling is independently connected with a driving motor which can horizontally move the sleeper sling on the main beam; each sleeper sling comprises a cross beam, and a centering device which enables the center line of the sleeper to coincide with the center line of the sleeper sling is arranged on the cross beam; each sleeper sling is also fixedly connected with a position sensor, one side of the main beam is connected with detection blocks with the same number as the position sensors in a sliding manner, and the position sensors are matched with the detection blocks one by one; the multi-sleeper grabbing lifting appliance with the uniform distribution function further comprises a controller, wherein the input end of the controller is electrically connected with the position sensor, and the output end of the controller is electrically connected with the corresponding driving motor. According to the sleeper lifting device, the position of the sleeper lifting device is adjusted through the centering device, the distance between the sleepers is adjusted through the position sensor, the detection block, the driving motor and the controller after lifting, a plurality of sleepers can be lifted each time, accurate uniform distribution is achieved, and the working efficiency and the working accuracy are high.
Description
Technical Field
The invention relates to the technical field of railway construction equipment, in particular to a multi-sleeper-grabbing lifting appliance with a uniform distribution function.
Background
In railway construction, sleeper laying is one of the core links. The sleeper types are various, and different railway sleeper intervals are also different. In fact, when the sleeper leaves the factory, the sleepers are piled in rows, symmetrical sleepers are padded between each row, and each row is basically and uniformly distributed. The conventional process flow is as follows: after the project is determined, customizing special lifting appliances, lifting to the tracks one by one, assembling the track panels by manual scribing, and then laying the tracks. Although different lifting appliances are suitable for grabbing the sleeper, the sleeper grabbing is carried out one by one, and the efficiency and the precision of the method are low.
Disclosure of Invention
The invention aims to provide a multi-sleeper grabbing lifting appliance with a uniform distribution function so as to solve the problems.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a multi-sleeper grabbing lifting appliance with a uniform distribution function comprises two balance beams and two side main beams fixedly connected with the balance beams; the device is characterized in that a plurality of sleeper spreaders are connected to the main beam in a sliding manner, and each sleeper spreader is independently connected with a driving motor which can enable the sleeper spreader to horizontally move on the main beam; each sleeper sling comprises a cross beam, and a centering device enabling the center line of the sleeper to coincide with the center line of the sleeper sling is arranged on the cross beam; each sleeper sling is also fixedly connected with a position sensor, one side of the main beam is connected with detection blocks with the same number as the position sensors in a sliding manner, and the position sensors and the detection blocks are matched one by one for use; the multi-sleeper grabbing lifting appliance with the uniform distribution function further comprises a controller, wherein the input end of the controller is electrically connected with the position sensor, and the output end of the controller is electrically connected with the corresponding driving motor.
Preferably, a rack is arranged on the main beam at one side, and a gear meshed with the rack is connected to the output shaft of the driving motor.
Preferably, guide rails which are uniformly distributed are arranged on the main beam at the other side, the number of the guide rails is the same as that of the detection blocks, and the detection blocks are slidably connected to the guide rails.
Preferably, two lock pin holes are formed in the outer side of each cross beam, two vertical scales are fixedly connected to the cross beams through lock pins, the vertical scales are symmetrically arranged on the cross beams in pairs, and the vertical scales are symmetrically arranged on the cross beams in pairs; the upper part of the vertical ruler is uniformly provided with a plurality of adjusting holes matched with the lock pin holes in the vertical direction, and the lower part of the vertical ruler is provided with two fixing holes matched with the lock pin holes.
Preferably, the lower part of each vertical ruler is detachably and fixedly connected with a transverse ruler for adjusting the distance between the front sleeper and the rear sleeper when two groups of track panels are in butt joint.
Preferably, the centering device comprises a pair of centering adjusting seats and a connecting shaft which are fixedly connected to the cross beam, and the centering adjusting seats are hinged with scissor arms; the upper part of the centering adjustment seat is provided with a guide slot hole in the vertical direction, and the centering adjustment seat is slidably hinged with a central shaft through the guide slot hole; one end of a centering oil cylinder is hinged in the middle of the central shaft, and the other end of the centering oil cylinder is hinged on the cross beam; the two ends of the central shaft are respectively hinged with one end of a centering arm, the other end of the centering arm is hinged with one end of the scissor arm, and the two hinge points are fixedly connected through a connecting shaft, so that the scissor arm forms an enlarged clamp.
Preferably, each centering adjustment seat is provided with a plurality of mounting holes in the vertical direction, and the centering adjustment seat is hinged with the scissor arms through the mounting holes.
Preferably, two wheel seats are symmetrically and fixedly connected to two sides of the cross beam, two single-edge wheels are fixedly connected to the inner side surface of each wheel seat, and the single-edge wheels are in rolling connection with the main beam; one end of a gripper oil cylinder is hinged to the outer side face of each wheel seat, a fixed gripper is hinged to the other end of the gripper oil cylinder, and the fixed gripper is hinged to the end of the cross beam; the lower part of the fixed gripper is detachably and fixedly connected with a movable gripper.
Preferably, the fixed grip is provided with two shaft holes, the movable grip is provided with more than three positioning holes matched with the shaft holes, and the fixed grip and the movable grip are fixedly connected through two adjusting shafts.
Preferably, the movable grip is L-shaped, and an impact block is arranged on the contact surface of the movable grip and the sleeper.
The beneficial effects of the invention are as follows:
1. according to the sleeper lifting device, the position of the sleeper lifting device is adjusted through the centering device, the distance between the sleepers is adjusted through the position sensor, the detection block, the driving motor and the controller after lifting, a plurality of sleepers can be lifted each time, accurate uniform distribution is achieved, and the working efficiency and the working accuracy are high.
2. The height of the transverse ruler is adjusted through the vertical ruler, the distance between the transverse ruler and the previous sleeper and the distance between each row of sleepers are determined according to the condition that the transverse ruler touches the side face of the previous sleeper, and the vertical ruler and the transverse ruler are simple in structure and rapid and convenient to operate.
3. The scissor arm, the centering arm, the central shaft, the connecting shaft and the centering oil cylinder form a mechanical amplifying clamp, the mechanical amplifying clamp is hinged on the centering adjusting seat, the center line of the sleeper is overlapped with the center line of the sleeper lifting tool through driving of the centering oil cylinder, the movable grippers of the sleeper lifting tool can accurately move to two ends of the sleeper through the structure, the mechanical amplifying clamp is suitable for grabbing sleepers placed at different intervals, and grabbing is more reliable and stable.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged schematic view of the structure of FIG. 1 at A;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is an enlarged schematic view of the vertical scale;
FIG. 5 is an enlarged schematic perspective view of a single sleeper spreader;
FIG. 6 is an enlarged schematic view of the structure at B in FIG. 5;
FIG. 7 is a schematic view of the present invention in its configuration when gripping a tie;
fig. 8 is a schematic structural diagram of the sleeper sling according to the present invention after being uniformly distributed;
fig. 9 is a schematic view of the structure of the invention when laying the sleeper rows.
The figure shows: the device comprises a 1-balance beam, a 2-vertical ruler, a 3-transverse ruler, a 4-lock nut, a 5-lock pin, a 6-guide rail, a 7-detection block, an 8-position sensor, a 9-driving motor, a 10-rack, a 11-cross beam, a 12-wheel seat, a 13-single-edge wheel, a 14-main beam, a 15-gripper cylinder, a 16-fixed gripper, a 17-collision block, an 18-adjusting shaft, a 19-movable gripper, a 20-scissor arm, a 21-centering adjusting seat, a 22-central shaft, a 23-centering cylinder, a 24-connecting shaft, a 25-centering arm, a 26-gear, a 27-adjusting hole, a 28-fixing hole, a 29-mounting hole, a 30-scissor shaft and a 31-guiding long hole.
Detailed Description
Embodiments of the present invention are further described below with reference to the accompanying drawings.
As shown in fig. 1-6, a multi-sleeper sling with uniform distribution function comprises two balance beams 1 and two side main beams 14 fixedly connected with the balance beams 1. Seven sleeper spreaders are connected to the main beam 14 in a sliding manner.
Each sleeper sling comprises a cross beam 11, and a centering device enabling the center line of the sleeper to coincide with the center line of the sleeper sling is arranged on the cross beam 11. The centering device comprises a pair of centering adjustment seats 21 and a connecting shaft 24 which are fixedly connected to the cross beam 11, each centering adjustment seat 21 is provided with two mounting holes 29 in the vertical direction, and the centering adjustment seats 21 are hinged with the scissor arms 20 through the mounting holes 29; the upper part of the centering adjustment seat 21 is provided with a guide long hole 31 in the vertical direction, and the centering adjustment seat 21 is slidably hinged with a central shaft 22 through the guide long hole 31; one end of a centering oil cylinder 23 is hinged in the middle of the central shaft 22, and the other end of the centering oil cylinder 23 is hinged on the cross beam 11 through an oil cylinder seat; each end of the central shaft 22 is hinged with one end of two centering arms 25, two ends are connected with four centering arms 25 in total, the other ends of the four centering arms 25 are hinged with four upper ends of the scissor arms 20, and every two hinge points parallel to the central shaft 22 are connected and fixed through a connecting shaft 24, so that the scissor arms 20 form a large clamp.
Two sides of the cross beam 11 are symmetrically and fixedly connected with two wheel seats 12, the inner side surface of each wheel seat 12 is fixedly connected with two single-edge wheels 13, and the single-edge wheels 13 are in sliding connection with the C-shaped main beam 14. Four single-edge wheels 13 form four points to hang on a C-shaped main beam 14 below the balance beam 1, so that the stability of the sleeper sling hanging is ensured.
One end of a gripper cylinder 15 is hinged to the outer side surface of each wheel seat 12, a fixed gripper 16 is hinged to the other end of the gripper cylinder 15, and the fixed gripper 16 is hinged to the end of the cross beam 11; the lower part of the fixed grip 16 is detachably and fixedly connected with a movable grip 19;
the fixed grip 16 is provided with two shaft holes, the movable grip 19 is provided with more than three positioning holes matched with the shaft holes, and the fixed grip 16 is fixedly connected with the movable grip 19 through two adjusting shafts 18. The movable handles 19 are L-shaped, and collision blocks 17 with buffer function are arranged on the contact surfaces of the movable handles 19 and the sleeper.
Each sleeper sling is independently connected with a driving motor 9 which can enable the sleeper sling to horizontally move on a C-shaped main beam 14, one side of the sleeper sling is provided with a rack 10 on the main beam 14, the output shaft of the driving motor 9 is connected with a gear 26 meshed with the rack 10, and the driving motor 9 is fixedly connected to the wheel seat 12 and moves together with the sleeper sling. The other side is provided with guide rails 6 uniformly distributed on the main beam 14, the number of the guide rails 6 is the same as that of the detection blocks 7, and the detection blocks 7 are slidably connected to the guide rails 6.
Each sleeper sling is also fixedly connected with a position sensor 8, one side of the main beam 14 is connected with detection blocks 7 with the same number as the position sensors 8 in a sliding manner, and the position sensors 8 are matched with the detection blocks 7 one by one; the multi-sleeper grabbing lifting appliance with the uniform distribution function further comprises a controller, wherein the input end of the controller is electrically connected with the position sensor 8, and the output end of the controller is electrically connected with the corresponding driving motor 9.
The detection block 7 slides on the guide rail 6 in advance for a certain distance, the driving motor 9 drives the sleeper sling to move on the main beam 14, when the position sensor 8 senses the detection block 7, the position sensor 8 transmits a signal to the controller, the controller stops the corresponding driving motor 9 to operate, the stay position of the sleeper sling is further determined, and the sleeper uniform distribution precision is ensured.
Two lock pin holes are formed in the outer side of each beam 1, two vertical scales 2 are fixedly connected to the beams 1 through lock pins 5, and the vertical scales 2 are symmetrically arranged on the beams 1 in pairs; seven adjusting holes 27 matched with the lock pin holes are uniformly distributed on the upper portion of the vertical ruler 2 along the vertical direction, and the hole pitch is half of the lock pin hole pitch. The lower part of the vertical ruler 2 is provided with two fixing holes 28 matched with the locking pin holes. Each vertical ruler lower part is connected with a transverse ruler 3, and the transverse ruler 3 is arranged at the lower part of the vertical ruler 2 through threads and is fixed through a lock nut 4.
The function of the adjusting hole 27 at the upper part of the vertical ruler 2 is to adjust the height of the transverse ruler 3 by adjusting the installation height of the vertical ruler 2, so that when the sleeper sling puts down the grabbed sleeper, the transverse ruler 3 can be ensured to touch the front sleeper, and the distance between the transverse ruler 3 and the sleeper of the previous group and the distance between each row of sleepers are ensured to be consistent. The lower fixing hole 28 of the vertical ruler 2 is used for lifting the vertical ruler 2 and the transverse ruler 3 to the highest point when grabbing the sleeper, so that the sleeper is avoided.
The working process of the sleeper lifting is completed through the following steps:
1. the vertical scales 2 of the balance beam 1 on one side are fixedly connected and retracted through the fixing holes 28, the vertical scales 2 of the balance beam 1 on the other side are used for adjusting the lower length of the vertical scales 2 through the adjusting holes 27 according to the thickness of the lifted sleeper, and then the transverse scales 3 are adjusted to enable the dimension B=A-D/2 in fig. 3 and 9 (A is the horizontal distance between the central lines of two adjacent rows of sleepers after being uniformly distributed, B is the horizontal distance between the central lines of the sleepers at two ends and the end parts of the transverse scales 3, and D is the width of the sleeper).
2. All sleeper spreaders are close to the middle (fourth sleeper spreader), the gripper cylinder 15 drives the fixed gripper 16 and the movable gripper 19 to be in a fully opened state, and the positions of the detection blocks 7 are adjusted so that the interval between every two adjacent detection blocks 7 is kept to be A.
3. The external power device capable of enabling the sleeper lifting device to integrally move is externally connected, as shown in fig. 7, the sleeper lifting device moves to the upper part of the sleeper row through the external power device, and the driving motors 9 of all sleeper lifting devices are in a free running state of breaking braking, so that the sleeper lifting devices can freely slide on the main beams 14.
4. The centering cylinder 23 drives the central shaft 22 to clamp the sleeper, the opposite thrust of the sleeper pushes the sleeper spreaders, so that each sleeper spreader coincides with the central line of each row of sleepers, centering is carried out, and the gripper cylinder 15 drives the fixed grippers 16 and the movable grippers 19 to clamp the two ends of the sleeper.
5. The external power device lifts the sleeper row clamping device integrally, as shown in fig. 8, each sleeper sling is driven by each driving motor 9 to move to two sides, when the position sensor 8 detects the corresponding detection block 7, the operation of the corresponding driving motor 9 is stopped, and the interval between every two adjacent sleeper spreaders is A after the sleeper spreaders are stopped.
6. The external power device moves the invention for clamping the sleeper rows to a designated position to be placed (the distance between the external power device and the sleeper rows of the previous group is ensured to be kept A when the transverse ruler touches the sleeper rows of the previous group), the external power device drives the sleeper rows through the centering oil cylinder 23 once, the centering device is opened, the fixed grippers 16 and the movable grippers 19 are driven to be opened through the gripper oil cylinder 15, and then the external power device lifts the sleeper rows. As shown in fig. 9, after the first falling, the measurement is performed to verify whether C (the horizontal distance between the central lines of two adjacent sleeper rows in two adjacent sleeper rows) is equal to a, and if the adjustable transverse ruler 3 is unequal, the clamping, uniform distribution, hoisting and butt joint operation of the whole track panel is completed.
If the sleeper model is changed, when the sleeper height increases, three positions need to be adjusted: the first is to remove the adjusting shaft 18, move the movable gripper 19 downwards, and connect the fixed gripper 16 with two positioning holes on the upper part of the movable gripper 19. And secondly, the scissor shaft 30 is removed, the scissor arm 20 is moved downwards and hinged with the lower mounting hole 29 of the centering adjustment seat 21. And thirdly, the lock pin 5 is disassembled, and the vertical ruler 2 is moved downwards. Since the centering cylinder 23 is formed and the guide long hole 31 of the centering adjustment seat 21 is left with a margin in design, adjustment is not required.
If the sleeper width is changed, the length of the transverse ruler 3 is adjusted, and the length is not adjusted.
If the sleeper interval A is changed, the position of the detection block 7 and the length of the transverse ruler 3 are only required to be adjusted.
The above embodiments are only for illustrating the technical solution of the present invention, and it should be understood by those skilled in the art that although the present invention has been described in detail with reference to the above embodiments: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention, which is intended to be encompassed by the claims.
Claims (4)
1. A multi-sleeper grabbing lifting appliance with a uniform distribution function comprises two balance beams and two side main beams fixedly connected with the balance beams; the device is characterized in that a plurality of sleeper spreaders are connected to the main beam in a sliding manner, and each sleeper spreader is independently connected with a driving motor which can enable the sleeper spreader to horizontally move on the main beam; each sleeper sling comprises a cross beam, and a centering device enabling the center line of the sleeper to coincide with the center line of the sleeper sling is arranged on the cross beam; each sleeper sling is also fixedly connected with a position sensor, one side of the main beam is connected with detection blocks with the same number as the position sensors in a sliding manner, and the position sensors and the detection blocks are matched one by one for use; the multi-sleeper grabbing lifting appliance with the uniform distribution function further comprises a controller, wherein the input end of the controller is electrically connected with the position sensor, and the output end of the controller is electrically connected with the corresponding driving motor; a rack is arranged on one side of the main beam, and the output shaft of the driving motor is connected with a gear meshed with the rack; the main beams on the other side are provided with uniformly distributed guide rails, the number of the guide rails is the same as that of the detection blocks, and the detection blocks are connected to the guide rails in a sliding manner; two lock pin holes are formed in the outer side of each cross beam, two vertical scales are fixedly connected to the cross beams through lock pins, and the vertical scales are symmetrically arranged on the cross beams in pairs; the upper part of the vertical ruler is uniformly provided with a plurality of adjusting holes matched with the lock pin holes in the vertical direction, and the lower part of the vertical ruler is provided with two fixing holes matched with the lock pin holes; the lower part of each vertical ruler is detachably and fixedly connected with a transverse ruler for adjusting the distance between the front sleeper and the rear sleeper when two groups of track panels are butted; the centering device comprises a pair of centering adjusting seats and a connecting shaft which are fixedly connected to the cross beam, and the centering adjusting seats are hinged with scissor arms; the upper part of the centering adjustment seat is provided with a guide slot hole in the vertical direction, and the centering adjustment seat is slidably hinged with a central shaft through the guide slot hole; one end of a centering oil cylinder is hinged in the middle of the central shaft, and the other end of the centering oil cylinder is hinged on the cross beam; one end of a centering arm is hinged to each of two ends of the central shaft, the other end of the centering arm is hinged to one end of the scissor arm, and two hinge points are fixedly connected through a connecting shaft, so that the scissor arm forms a large clamp; two wheel seats are symmetrically and fixedly connected to two sides of the cross beam, two single-edge wheels are fixedly connected to the inner side surface of each wheel seat, and the single-edge wheels are in rolling connection with the main beam; one end of a gripper oil cylinder is hinged to the outer side face of each wheel seat, a fixed gripper is hinged to the other end of the gripper oil cylinder, and the fixed gripper is hinged to the end of the cross beam; the lower part of the fixed gripper is detachably and fixedly connected with a movable gripper.
2. The multi-sleeper sling with uniform distribution function according to claim 1, wherein each centering adjustment seat is provided with a plurality of vertical mounting holes, and the centering adjustment seat is hinged with the scissor arms through the mounting holes.
3. The multi-sleeper sling with uniform distribution function according to claim 1, wherein the fixed gripper is provided with two shaft holes, the movable gripper is provided with more than three positioning holes matched with the shaft holes, and the fixed gripper is fixedly connected with the movable gripper through two adjusting shafts.
4. The multi-sleeper sling with uniform distribution function according to claim 1, wherein the movable handles are L-shaped, and collision blocks are installed on the contact surfaces of the movable handles and the sleeper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910575567.4A CN110329902B (en) | 2019-06-28 | 2019-06-28 | Multi-sleeper grabbing lifting appliance with uniform distribution function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910575567.4A CN110329902B (en) | 2019-06-28 | 2019-06-28 | Multi-sleeper grabbing lifting appliance with uniform distribution function |
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| Publication Number | Publication Date |
|---|---|
| CN110329902A CN110329902A (en) | 2019-10-15 |
| CN110329902B true CN110329902B (en) | 2024-04-02 |
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| CN201910575567.4A Active CN110329902B (en) | 2019-06-28 | 2019-06-28 | Multi-sleeper grabbing lifting appliance with uniform distribution function |
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| CN114728767A (en) * | 2020-02-20 | 2022-07-08 | 三菱电机大楼技术服务株式会社 | Counterweight block carrying auxiliary tool of elevator |
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| CN107165005A (en) * | 2017-05-06 | 2017-09-15 | 中铁五局集团有限公司 | It is a kind of to ensure the double-block type framework section of track assembling device and method of track geometry status |
| CN206827907U (en) * | 2017-06-15 | 2018-01-02 | 河南卫华特种车辆有限公司 | A kind of hydraulic pressure gripping suspender and the crane using the suspender |
| CN108002219A (en) * | 2017-11-30 | 2018-05-08 | 株洲天桥起重机股份有限公司 | A kind of suspender and method for being exclusively used in hanged brick fuel, and its crane |
| CN207672349U (en) * | 2017-12-14 | 2018-07-31 | 邯郸中铁桥梁机械有限公司 | A kind of roller bearing detent mechanism for sleeper anchoring production line |
| CN208716348U (en) * | 2018-09-12 | 2019-04-09 | 北京好运达智创科技有限公司 | Double-block sleeper mould automatic stacking system |
| CN208791046U (en) * | 2018-09-12 | 2019-04-26 | 中铁第五勘察设计院集团有限公司 | A kind of intelligence section of track spreading machine |
| CN210655819U (en) * | 2019-06-28 | 2020-06-02 | 河南卫华特种车辆有限公司 | Multi-grab sleeper lifting appliance with uniform distribution function |
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| CN110329902A (en) | 2019-10-15 |
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Effective date of registration: 20240304 Address after: No. 18 Shanhai Avenue, Changyuan City, Xinxiang City, Henan Province, 453000 Applicant after: Henan Weihua Heavy Machinery Co.,Ltd. Country or region after: China Address before: 453400 Puxi office, Changyuan County, Xinxiang City, Henan Province Applicant before: HENAN WEIHUA SPECIAL VEHICLE Co.,Ltd. Country or region before: China |
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