CN103940631A - Wheel type cold milling machine pre-delivery detection device - Google Patents
Wheel type cold milling machine pre-delivery detection device Download PDFInfo
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- CN103940631A CN103940631A CN201410196972.2A CN201410196972A CN103940631A CN 103940631 A CN103940631 A CN 103940631A CN 201410196972 A CN201410196972 A CN 201410196972A CN 103940631 A CN103940631 A CN 103940631A
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Abstract
The invention discloses a wheel type cold milling machine pre-delivery detection device, comprising a running system dynamometer and a milling drum dynamometer; the running system dynamometer comprises a rack, a torque and seed sensor, a magnetic powder brake, a first roller, a second roller, a third roller and a fourth roller, wherein one end of a second central shaft on the second roller is connected with one end of a fourth central shaft on the fourth roller, one end of a first central shaft on the first roller is connected with one end of a third central shaft on the third roller, the other end of the third central shaft is connected with one end of a rotation shaft of the torque and speed sensor, and the other end of the rotation shaft of the torque and speed sensor is connected with an output shaft of the magnetic powder brake; the milling drum dynamometer comprises an electric eddy current dynamometer and a connection disc, wherein one end of the connection disc is connected with a rotation shaft of the electric eddy current dynamometer while the other end of the connection disc is connected with a rotation shaft of a milling drum. The detection device can rapidly obtain the speed parameter and torque parameter of the running system and the rotation speed and torque parameter of the milling drum, and can be applied to performing pre-delivery detection to the wheel type cold milling machine.
Description
Technical field
The invention belongs to wheeled cold milling and planing machine detection technique field, be specifically related to a kind of wheeled cold milling and planing machine outgoing detector.
Background technology
The highway communication cause of China is flourish in recent years, and highway construction has obtained huge progress, and it is main that standard highway will enter to build, and progressively turns to as building with maintenance and lays equal stress on, and then be transitioned into taking maintenance as the main new period.Road quality problem is also more simultaneously, the volume of traffic that transfinites heavy duty in addition and sharply increase, and maintenance of surface and regeneration task are by increasing year by year.Cold milling and planing machine is as the main type of asphalt pavement conserving, and overall performance especially transaction capabilities becomes cold milling and planing machine and manufactures the core content of process and factory inspection.
Along with the application in Cold Miller such as sensing technology, hydraulic pressure integration technology, microprocessor technology, the special control technology of engineering machinery, control accuracy and the serviceability of Cold Miller are largely increased.But Cold Miller work progress working condition complexity, asphalt pavement material type class is many, especially adopt in a large number in recent years modification technology, bituminous pavement intensity significantly improves, this fixes a cutting tool milling and planing drum and will bear larger load impacting in milling process, and this cyclic loading is cyclic fluctuation by zero to maximum, especially in the time of large width, large degree of depth milling, situation is more serious.In the Wheeled type milling machine course of work usually occur seriously trackslip, milling underpower, cause operation quality and Efficiency Decreasing, often can only change running parameter, and this certainly will affect the Proper Match between each parameter, cause tool wear aggravation, machine maintenance cost increases, and usually breaks down.Due to the singularity of milling machine structure, there is no special outgoing detector, make milling machine parameter matching in parameter designing manufacture process can not find in time and process with manufacture assembling relevant issues.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency of the prior art, a kind of wheeled cold milling and planing machine outgoing detector is provided.This pick-up unit can obtain running gear speed parameter and torque parameter fast, milling and planing drum rotating speed and torque parameter, carry out the work of wheeled cold milling and planing machine factory testing, pick-up unit can the wheeled cold milling and planing machine working condition of loading simulation, and realizes detection and the evaluation of milling machine performance in conjunction with complete machine hydraulic system parameters.
For achieving the above object, the technical solution used in the present invention is: a kind of wheeled cold milling and planing machine outgoing detector, is characterized in that: comprise running gear dynamometer machine and milling and planing drum dynamometer machine, described running gear dynamometer machine comprises frame, torque rotary speed sensor, magnetic powder brake and be rotatably connected in frame and be the first cylinder that level is laid, second tin roller, the 3rd cylinder and the 4th cylinder, described the first cylinder and second tin roller are corresponding to be laid and is parallel to each other, described the 3rd cylinder and the 4th cylinder are corresponding to be laid and is parallel to each other, on described second tin roller, one end of the second central shaft is connected with one end of the 4th central shaft on the 4th cylinder, on described the first cylinder, one end of the first central shaft is connected with one end of the 3rd central shaft on the 3rd cylinder, the other end of described the 3rd central shaft is connected with one end of torque rotary speed sensor rotating shaft, the other end of described torque rotary speed sensor rotating shaft is connected with the output shaft of magnetic powder brake, described milling and planing drum dynamometer machine comprises electric eddy current dynamometer and terminal pad, and one end of described terminal pad is connected with the rotating shaft of electric eddy current dynamometer, and the other end of described terminal pad is connected with the rotating shaft of milling and planing drum.
The wheeled cold milling and planing machine outgoing detector of above-mentioned one, is characterized in that: one end of described terminal pad is connected with the rotating shaft of electric eddy current dynamometer by the first shaft coupling, and described the first shaft coupling is slide block type Hooks coupling universal coupling.
The wheeled cold milling and planing machine outgoing detector of above-mentioned one, it is characterized in that: on described the first central shaft, the first synchromesh gear is installed, on described the second central shaft, the second synchromesh gear is installed, described the first synchromesh gear is connected by the first synchronous cog belt with the second synchromesh gear; On described the 3rd central shaft, the 3rd synchromesh gear is installed, on described the 4th central shaft, the 4th synchromesh gear is installed, described the 3rd synchromesh gear is connected by the second synchronous cog belt with the 4th synchromesh gear.
The wheeled cold milling and planing machine outgoing detector of above-mentioned one, it is characterized in that: described running gear dynamometer machine comprises the first lifting jack for adjusting wheeled cold milling and planing machine one driving wheel height, and for adjusting the second lifting jack of another driving wheel height of wheeled cold milling and planing machine.
The wheeled cold milling and planing machine outgoing detector of above-mentioned one, it is characterized in that: described the first lifting jack comprises the first lifting motor, the first Worm gear feed screw lifter, the first swing bearing and the first raising board, the first lifting screw on described the first Worm gear feed screw lifter is vertically arranged between the first cylinder and second tin roller, the output shaft of described the first lifting motor is connected with the first Worm gear feed screw lifter, on described the first Worm gear feed screw lifter, the upper end of the first lifting screw is connected with the inner ring of the first swing bearing, described the first raising board is arranged on the outer ring of the first swing bearing, described the second lifting jack comprises the second lifting motor, the second Worm gear feed screw lifter, the second swing bearing and the second raising board, the second lifting screw on described the second Worm gear feed screw lifter is vertically arranged between the 3rd cylinder and the 4th cylinder, the output shaft of described the second lifting motor is connected with the second Worm gear feed screw lifter, the upper end of described the second lifting screw is connected with the inner ring of the second swing bearing, and described the second raising board is arranged on the outer ring of described the second swing bearing.
The wheeled cold milling and planing machine outgoing detector of above-mentioned one, it is characterized in that: in described frame, fixed installation is useful on two the first cylinder support plates that support the first cylinder and second tin roller, and for supporting two second tin roller back up pads of the 3rd cylinder and the 4th cylinder; The two ends of described the first central shaft are stretched out respectively two the first cylinder support plates and are rotationally connected with the first cylinder support plate; The two ends of described the second central shaft are stretched out respectively two the first cylinder support plates and are rotationally connected with the first cylinder support plate; The two ends of described the 3rd central shaft are stretched out respectively two second tin roller back up pads and are rotationally connected with second tin roller back up pad; The two ends of described the 4th central shaft are stretched out respectively two second tin roller back up pads and are rotationally connected with second tin roller back up pad.
The present invention compared with prior art has the following advantages:
1, of the present invention simple in structure, rationally novel in design.
2, the present invention progressively loads running gear by magnetic powder brake, and then simulate different operating modes, by controlling the rotating speed of four cylinders and then two driving wheels being loaded, and can obtain rotary speed parameter and torque parameter by torque rotary speed sensor, and then provide foundation for the performance that judges running gear, and can pinpoint the problems in time and debug, significantly improve and dispatch from the factory product quality and reduce operation fault, thereby improve effective operation time.
3, the present invention measures the power machine performance of milling and planing drum by electric eddy current dynamometer, by before dispatching from the factory, milling and planing drum being detected, can pinpoint the problems in time and debug, and significantly improves and dispatches from the factory product quality and reduce operation fault, improves milling quality and efficiency.
4, the present invention has ensured that by the first synchronous cog belt and the second synchronous cog belt are set four cylinders synchronously rotate, while making to load by magnetic powder brake, the damping force loading can be fast, synchronous be delivered to four cylinders, improved detection efficiency, avoided error.
5, of the present invention to realize cost low, and result of use is good, is convenient to promote the use of.
In sum, the present invention is simple in structure, and rationally novel in design, functional reliability is high, long service life, and detection accuracy is high, and result of use is good, is convenient to promote the use of.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Brief description of the drawings
Fig. 1 is the front view of running gear dynamometer machine of the present invention.
Fig. 2 is the vertical view of running gear dynamometer machine of the present invention.
Fig. 3 is the left view of running gear dynamometer machine of the present invention.
Fig. 4 is the stereographic map of running gear dynamometer machine of the present invention.
Fig. 5 is the structural representation of milling and planing drum dynamometer machine of the present invention.
Description of reference numerals:
1-frame; The 2-the first cylinder; The 3-the first cylinder support plate;
4-bearing seat; The 5-the first synchronous cog belt; The 6-the first central shaft;
The 7-the 5-linked axial organ; The 8-the three central shaft; The 9-the second lifting motor;
The 10-the second raising board; The 11-the three cylinder; The 12-the three shaft coupling;
13-torque rotary speed sensor; The 14-the second shaft coupling; 15-magnetic powder brake;
16-brake support; 17-second tin roller back up pad; The 18-the four cylinder;
The 19-the four central shaft; The 20-the second synchronous cog belt; The 21-the tetrad axial organ;
The 22-the second central shaft; The 23-the first lifting motor; 24-second tin roller;
25-sensor support base; The 26-the second Worm gear feed screw lifter;
The 27-the second lifter bearing; The 28-the second motor support base; The 29-the first motor support base;
The 30-the first lifter bearing; The 31-the first Worm gear feed screw lifter;
The 32-the first raising board; The 33-the first lifting screw; The 34-the first swing bearing;
35-electric eddy current dynamometer; 36-ring flange; The 37-the first shaft coupling;
38-terminal pad; 39-milling and planing drum; The 40-the first synchromesh gear;
The 41-the second synchromesh gear; The 42-the three synchromesh gear; The 43-the four synchromesh gear.
Embodiment
As Fig. 1, Fig. 2, the wheeled cold milling and planing machine outgoing detector of one shown in Fig. 3 and Fig. 4, comprise running gear dynamometer machine, described running gear dynamometer machine comprises frame 1, torque rotary speed sensor 13, magnetic powder brake 15 and be rotatably connected in frame 1 and be the first cylinder 2 that level is laid, second tin roller 24, the 3rd cylinder 11 and the 4th cylinder 18, described the first cylinder 2 and second tin roller 24 correspondences are laid and are parallel to each other, described the 3rd cylinder 11 and the 4th cylinder 18 correspondences are laid and are parallel to each other, on described second tin roller 24, one end of the second central shaft 22 is connected with one end of the 4th central shaft 19 on the 4th cylinder 18, on described the first cylinder 2, one end of the first central shaft 6 is connected with one end of the 3rd central shaft 8 on the 3rd cylinder 11, the other end of described the 3rd central shaft 8 is connected with one end of torque rotary speed sensor 13 rotating shafts, the other end of described torque rotary speed sensor 13 rotating shafts is connected with the output shaft of magnetic powder brake 15.
As depicted in figs. 1 and 2, in the present embodiment, in described frame 1, be provided with brake support 16 for supporting magnetic powder brake 15 and for supporting the sensor support base 25 of torque rotary speed sensor 13.One end of described the first central shaft 6 is connected by 5-linked axial organ 7 with one end of the 3rd central shaft 8, one end of described the second central shaft 22 is connected by tetrad axial organ 21 with one end of the 4th central shaft 19, and one end of described the 3rd central shaft 8 is connected with torque rotary speed sensor 13 rotating shafts by the 3rd shaft coupling 12.One end of described torque rotary speed sensor 13 rotating shafts is connected with the output shaft of magnetic powder brake 15 by the second shaft coupling 14.
As shown in Figure 5, this wheeled cold milling and planing machine outgoing detector also comprises milling and planing drum dynamometer machine, described milling and planing drum dynamometer machine comprises electric eddy current dynamometer 35 and terminal pad 38, one end of described terminal pad 38 is connected with the rotating shaft of electric eddy current dynamometer 35, and the other end of described terminal pad 38 is connected with the rotating shaft of milling and planing drum 39.
As shown in Figure 5, one end of described terminal pad 38 is connected with the rotating shaft of electric eddy current dynamometer 35 by the first shaft coupling 37, and described the first shaft coupling 37 is slide block type Hooks coupling universal coupling.Concrete, described the first shaft coupling 37 is connected with the rotating shaft of electric eddy current dynamometer 35 by ring flange 36.Described the first shaft coupling 37 is by adopting slide block type Hooks coupling universal coupling, on the one hand can be in the time that electric eddy current dynamometer 35 departs from milling and planing drum 39 axis, not affecting described milling and planing drum dynamometer machine normally works, on the other hand, this slide block type Hooks coupling universal coupling can also regulate to be connected with different size milling and planing drum 39 around milling and planing drum 39 axis all directions.
In conjunction with Fig. 2 and Fig. 4, on described the first central shaft 6, the first synchromesh gear 40 is installed, on described the second central shaft 22, the second synchromesh gear 41 is installed, described the first synchromesh gear 40 is connected by the first synchronous cog belt 5 with the second synchromesh gear 41; On described the 3rd central shaft 8, the 3rd synchromesh gear 42 is installed, on described the 4th central shaft 19, the 4th synchromesh gear 43 is installed, described the 3rd synchromesh gear 42 is connected by the second synchronous cog belt 20 with the 4th synchromesh gear 43.
In conjunction with Fig. 1, Fig. 2 and Fig. 3, described running gear dynamometer machine comprises the first lifting jack for adjusting wheeled cold milling and planing machine one driving wheel height, and for adjusting the second lifting jack of another driving wheel height of wheeled cold milling and planing machine.Described the first lifting jack comprises the first lifting motor 23, the first Worm gear feed screw lifter 31, the first swing bearing 34 and the first raising board 32, the first lifting screw 33 on described the first Worm gear feed screw lifter 31 is vertically arranged between the first cylinder 2 and second tin roller 24, the output shaft of described the first lifting motor 23 is connected with the first Worm gear feed screw lifter 31, on described the first Worm gear feed screw lifter 31, the upper end of the first lifting screw 33 is connected with the inner ring of the first swing bearing 34, and described the first raising board 32 is arranged on the outer ring of the first swing bearing 34; Described the second lifting jack comprises the second lifting motor 9, the second Worm gear feed screw lifter 26, the second swing bearing and the second raising board 10, the second lifting screw on described the second Worm gear feed screw lifter 26 is vertically arranged between the 3rd cylinder 11 and the 4th cylinder 18, the output shaft of described the second lifting motor 9 is connected with the second Worm gear feed screw lifter 26, the upper end of described the second lifting screw is connected with the inner ring of the second swing bearing, and described the second raising board 10 is arranged on the outer ring of described the second swing bearing.In the present embodiment, in described frame 1, be provided with the first lifter bearing 30 for supporting the first Worm gear feed screw lifter 31, for supporting the second lifter bearing 27 of the second Worm gear feed screw lifter 26, for supporting the first motor support base 29 of the first lifting motor 23 and for supporting the second motor support base 28 of the second lifting motor 9.Preferably, described the first Worm gear feed screw lifter 31 and the second Worm gear feed screw lifter 26 all adopt Ward SWL series Worm gear feed screw lifter.
In conjunction with Fig. 1, Fig. 2 and Fig. 3, described the first lifting jack and the second lifting jack are in use, taking the first lifting jack as example, the first lifting motor 23 drives the first Worm gear feed screw lifter 31, the first Worm gear feed screw lifter 31 drives the first lifting screw 33, and then drive the first raising board 32, thus by the first raising board 32, lifting or reduction are carried out in cold milling and planing machine chassis, and then adjustment driving wheel contacts with the first cylinder 2 and second tin roller 24.
In conjunction with Fig. 1, Fig. 2 and Fig. 4, the interior fixed installation of described frame 1 is useful on two the first cylinder support plates 3 that support the first cylinder 2 and second tin roller 24, and for supporting two second tin roller back up pads 17 of the 3rd cylinder 11 and the 4th cylinder 18; The two ends of described the first central shaft 6 are stretched out respectively two the first cylinder support plates 3 and are rotationally connected with the first cylinder support plate 3; The two ends of described the second central shaft 22 are stretched out respectively two the first cylinder support plates 3 and are rotationally connected with the first cylinder support plate 3; The two ends of described the 3rd central shaft 8 are stretched out respectively two second tin roller back up pads 17 and are rotationally connected with second tin roller back up pad 17; The two ends of described the 4th central shaft 19 are stretched out respectively two second tin roller back up pads 17 and are rotationally connected with second tin roller back up pad 17.Concrete, two described the first cylinder support plates 3 are all provided with the corresponding bearing seat 4 of above-mentioned each central shaft with in two described second tin roller back up pads 17, on described bearing seat 4, bearing are installed, and above-mentioned each central shaft is arranged on described bearing.
When the present embodiment uses, a driving wheel of wheeled cold milling and planing machine is positioned at the top of the first cylinder 2 and second tin roller 24, another driving wheel of wheeled cold milling and planing machine is positioned at the top of the 3rd cylinder 11 and the 4th cylinder 18, by the first lifting jack, one of them driving wheel is carried out to lifting, so that driving wheel is contacted with the first cylinder 2 and second tin roller 24, by the second lifting jack, another driving wheel is carried out to lifting, so that driving wheel is contacted with the 3rd cylinder 11 and the 4th cylinder 18 simultaneously.Start wheeled cold milling and planing machine, a driving wheel utilizes friction force to drive the first cylinder 2 and second tin roller 24 to rotate, another driving wheel utilizes friction force to drive the 3rd cylinder 11 and the 4th cylinder 18 to rotate, and by being set, the first synchronous cog belt 5 and the second synchronous cog belt 20 ensure that four cylinders synchronously rotate, then by magnetic powder brake 15, running gear is progressively loaded, and then simulate different operating modes, by controlling the rotating speed of four cylinders and then two driving wheels being loaded, and can obtain rotary speed parameter and torque parameter by torque rotary speed sensor 13, and then provide foundation for the performance that judges running gear, and can pinpoint the problems in time and debug, significantly improve and dispatch from the factory product quality and reduce operation fault, thereby raising effective operation time, meanwhile, in the time that running gear is worked, milling and planing drum 39 is running simultaneously also, and the rotating speed of milling and planing drum 39 and transmission of torque be to electric eddy current dynamometer 35, and then measure the power machine performance of milling and planing drum 39.By before dispatching from the factory, milling and planing drum 39 being detected, can pinpoint the problems in time and debug, significantly improve and dispatch from the factory product quality and reduce operation fault, improve milling quality and efficiency.Simultaneously, ensured that by the first synchronous cog belt 5 and the second synchronous cog belt 20 are set four cylinders synchronously rotate, while making to load by magnetic powder brake 15, the damping force of loading can be fast, synchronous be delivered to four cylinders, improve detection efficiency, avoided error.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every any simple modification, change and equivalent structure transformation of above embodiment being done according to the technology of the present invention essence, all still belongs in the protection domain of technical solution of the present invention.
Claims (6)
1. a wheeled cold milling and planing machine outgoing detector, is characterized in that: comprise running gear dynamometer machine and milling and planing drum dynamometer machine, described running gear dynamometer machine comprises frame (1), torque rotary speed sensor (13), magnetic powder brake (15) and be rotatably connected in frame (1) and be the first cylinder (2) that level is laid, second tin roller (24), the 3rd cylinder (11) and the 4th cylinder (18), described the first cylinder (2) and second tin roller (24) are corresponding to be laid and is parallel to each other, described the 3rd cylinder (11) and the 4th cylinder (18) are corresponding to be laid and is parallel to each other, one end of upper the second central shaft of described second tin roller (24) (22) is connected with one end of upper the 4th central shaft (19) of the 4th cylinder (18), one end of upper the first central shaft of described the first cylinder (2) (6) is connected with one end of upper the 3rd central shaft (8) of the 3rd cylinder (11), the other end of described the 3rd central shaft (8) is connected with one end of torque rotary speed sensor (13) rotating shaft, the other end of described torque rotary speed sensor (13) rotating shaft is connected with the output shaft of magnetic powder brake (15), described milling and planing drum dynamometer machine comprises electric eddy current dynamometer (35) and terminal pad (38), one end of described terminal pad (38) is connected with the rotating shaft of electric eddy current dynamometer (35), and the other end of described terminal pad (38) is connected with the rotating shaft of milling and planing drum (39).
2. the wheeled cold milling and planing machine outgoing detector of one according to claim 1, it is characterized in that: one end of described terminal pad (38) is connected with the rotating shaft of electric eddy current dynamometer (35) by the first shaft coupling (37), and described the first shaft coupling (37) is slide block type Hooks coupling universal coupling.
3. the wheeled cold milling and planing machine outgoing detector of one according to claim 1, it is characterized in that: the first synchromesh gear (40) is installed on described the first central shaft (6), the second synchromesh gear (41) is installed on described the second central shaft (22), and described the first synchromesh gear (40) is connected by the first synchronous cog belt (5) with the second synchromesh gear (41); On described the 3rd central shaft (8), the 3rd synchromesh gear (42) is installed, on described the 4th central shaft (19), the 4th synchromesh gear (43) is installed, described the 3rd synchromesh gear (42) is connected by the second synchronous cog belt (20) with the 4th synchromesh gear (43).
4. the wheeled cold milling and planing machine outgoing detector of one according to claim 1, it is characterized in that: described running gear dynamometer machine comprises the first lifting jack for adjusting wheeled cold milling and planing machine one driving wheel height, and for adjusting the second lifting jack of another driving wheel height of wheeled cold milling and planing machine.
5. the wheeled cold milling and planing machine outgoing detector of one according to claim 4, it is characterized in that: described the first lifting jack comprises the first lifting motor (23), the first Worm gear feed screw lifter (31), the first swing bearing (34) and the first raising board (32), the first lifting screw (33) on described the first Worm gear feed screw lifter (31) is vertically arranged between the first cylinder (2) and second tin roller (24), the output shaft of described the first lifting motor (23) is connected with the first Worm gear feed screw lifter (31), the upper end of described the first upper the first lifting screw of Worm gear feed screw lifter (31) (33) is connected with the inner ring of the first swing bearing (34), described the first raising board (32) is arranged on the outer ring of the first swing bearing (34), described the second lifting jack comprises the second lifting motor (9), the second Worm gear feed screw lifter (26), the second swing bearing and the second raising board (10), the second lifting screw on described the second Worm gear feed screw lifter (26) is vertically arranged between the 3rd cylinder (11) and the 4th cylinder (18), the output shaft of described the second lifting motor (9) is connected with the second Worm gear feed screw lifter (26), the upper end of described the second lifting screw is connected with the inner ring of the second swing bearing, described the second raising board (10) is arranged on the outer ring of described the second swing bearing.
6. the wheeled cold milling and planing machine outgoing detector of one according to claim 1, it is characterized in that: in described frame (1), fixed installation is useful on two the first cylinder support plates (3) that support the first cylinder (2) and second tin roller (24), and for supporting two second tin roller back up pads (17) of the 3rd cylinder (11) and the 4th cylinder (18); The two ends of described the first central shaft (6) are stretched out respectively two the first cylinder support plates (3) and are rotationally connected with the first cylinder support plate (3); The two ends of described the second central shaft (22) are stretched out respectively two the first cylinder support plates (3) and are rotationally connected with the first cylinder support plate (3); The two ends of described the 3rd central shaft (8) are stretched out respectively two second tin roller back up pads (17) and are rotationally connected with second tin roller back up pad (17); The two ends of described the 4th central shaft (19) are stretched out respectively two second tin roller back up pads (17) and are rotationally connected with second tin roller back up pad (17).
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| CN201410196972.2A CN103940631B (en) | 2014-05-09 | 2014-05-09 | A kind of wheeled cold milling and planing machine outgoing detector |
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| CN201410196972.2A CN103940631B (en) | 2014-05-09 | 2014-05-09 | A kind of wheeled cold milling and planing machine outgoing detector |
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| CN103940631B CN103940631B (en) | 2017-01-04 |
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| CN109029972A (en) * | 2018-06-13 | 2018-12-18 | 徐州徐工筑路机械有限公司 | Milling machine milling and planing drum drive system dynamic load torsional moment test device |
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