A vertical locking mechanism for a milling device under multiple working conditions and a milling device

Abstract

The present invention relates to a vertical locking mechanism and a milling device for use in multiple working conditions of a milling device, wherein the locking mechanism comprises a milling device vertical moving component (7), a transverse support plate (1), a locking tongue mechanism (4) and a drive holding device (6), wherein a toothed part (2) is mounted on the transverse support plate (1), the locking tongue mechanism (4) is hinged to the milling device vertical moving component (7), the drive holding device (6) is hinged to the milling device vertical moving component (7), the locking tongue mechanism (4) is hinged to the drive holding device (6) and enters the toothed groove through the drive holding device (6). The present invention can meet the locking requirements of the milling device under working conditions such as car retraction, high-speed operation, emergency lifting, and power failure of the control system. The locking mechanism of the present invention adopts a toothed part as a locking fixed end, has multiple locking positions, and meets the requirements for inspection and maintenance of the milling device.

Description

Technical Field

[0001] The invention relates to railway maintenance equipment, in particular to a vertical locking mechanism and a milling device used for a milling device under multiple working conditions. Background Art

[0002] The milling device on the rail milling vehicle includes vertical and horizontal transmission mechanisms. During the milling process, the milling device is driven by power to achieve vertical and horizontal feed movements. The vertical and horizontal transmission mechanisms must be reliably locked during vehicle collection, high-speed vehicle operation, and inspection and maintenance to ensure the safety of the milling device and driving. Secondly, under conditions such as operating system failure, power failure of the milling device, activation of the emergency mode, and emergency lifting of the milling device, the milling device needs to be moved to a fixed position and reliably locked. In addition, the vertical locking mechanism must provide multiple locking positions, that is, the milling device can be locked in multiple positions to meet the inspection and maintenance needs of the milling device in multiple positions.

[0003] Although the existing one-way locking mechanism of rail milling vehicles can be used to lock the milling operation device of rail milling vehicles, the current rail milling vehicle locking mechanism still has technical defects such as non-compact structure, inability to achieve multi-position locking, and inability to lock in place in emergency situations. Therefore, it is necessary to design a vertical locking mechanism with the above functions to achieve reliable vertical locking of the milling device under various working conditions, that is, the mechanism can achieve effective vertical locking of the milling device under working conditions such as high-speed operation of the rail milling vehicle, failure of the milling device operating system, and emergency lifting of the milling device, and the vertical locking mechanism can provide multiple locking positions.

[0004] The Chinese invention patent with patent number ZL201610687559.5 relates to a multi-directional adjustable concealed hinge, comprising a sash hinge shaft (1) installed on a door and window sash with its axis perpendicular to the rotating surface of the door and window sash, a hinge arm (2) connected to the sash hinge shaft (1) at one end so as to rotate relative to the door and window sash around the sash hinge shaft (1), a frame hinge shaft (3) arranged in a frame of the door and window frame and connected to the other end of the hinge arm (2), a sash adjustment mechanism having a sash adjustment device arranged between the door and window sash and the sash hinge shaft (1), and an arm adjustment mechanism arranged between a sash side arm (21) and a frame side arm (22) constituting the hinge arm (2); the adjustment directions of the sash adjustment mechanism and the arm adjustment mechanism are perpendicular to each other. The technical solution makes the adjustment more intuitive and convenient by adjusting the sash adjustment mechanism and the arm adjustment mechanism in mutually perpendicular adjustment directions, thereby improving the adjustment efficiency. The arm adjustment mechanism also has a vertical locking mechanism arranged between the sash side arm (21) and the frame side arm (22). However, the vertical locking mechanism of the invention is only applicable to door and window hinges, and is not applicable to the milling device on the rail milling vehicle, so it still needs to be improved.

[0005] The Chinese utility model patent with patent number ZL201520866268.3 relates to a screen lock with an integrated handle and lock body design, which is characterized in that it includes a handle body, a vertical locking mechanism, and a horizontal unlocking mechanism; one end of the handle body is made with an integrally formed installation chamber; the vertical locking mechanism and the horizontal unlocking mechanism are installed in the installation chamber, a top pressing portion is made on the side of the vertical locking mechanism, and a locking portion that cooperates with the top pressing portion is made on the side of the horizontal unlocking mechanism, a locking hand-pressing portion extending to the outside of the installation chamber is provided on the vertical locking mechanism, and an unlocking hand-pressing portion extending to the outside of the installation chamber is provided on the horizontal unlocking mechanism. The utility model has the characteristics of an integrated design of the handle body and the lock body, so that the handle body and the lock body do not need to be assembled, a simple structure, high production efficiency, reduced enterprise expenditure, and improved market competitiveness of the enterprise. However, the vertical locking mechanism of the utility model is only applicable to door and window locks, and is not applicable to the milling device on the rail milling vehicle, so it still needs to be improved. Summary of the invention

[0006] In order to solve the technical defects of the above-mentioned existing screen locks with integrated design of multi-directional adjustable concealed hinges and handle lock bodies, the present invention provides a vertical locking mechanism for a rail milling device, through which the vertical locking of the milling device under various working conditions is realized, which can adapt to reliable locking under working conditions such as high-speed operation of the rail milling vehicle, failure of the milling device operating system, and emergency lifting of the milling device, so as to solve the technical problems of the existing locking mechanism with complex structure and non-compactness. The technical solutions adopted by the present invention are as follows:

[0007] A vertical locking mechanism for a milling device under multiple working conditions comprises a milling device vertical moving part, a transverse support plate, a locking tongue mechanism and a drive holding device, wherein the transverse support plate is provided with a toothed part, the locking tongue mechanism is hinged to the milling device vertical moving part, the drive holding device is hinged to the milling device vertical moving part, the locking tongue mechanism is hinged to the drive holding device and enters the toothed groove through the drive holding device.

[0008] The toothed member provides a plurality of locking positions for the milling device, thereby meeting the locking requirements under various working conditions such as inspection, maintenance and servicing of the milling device.

[0009] Preferably, the toothed part is provided with a plurality of toothed grooves at a certain pitch, the locking tongue mechanism is mounted on the vertical moving part of the milling device via a rotating shaft, and the driving and holding device is hinged to the vertical moving part of the milling device via an ear seat.

[0010] In any of the above schemes, preferably, two position detection elements are provided at two rotation limit positions of the locking tongue mechanism, and the two position detection elements are used to feed back the position state of the locking tongue mechanism to the milling device control system to achieve safety interlocking.

[0011] In any of the above schemes, it is preferred that the two position detection elements adopt position detection sensors.

[0012] In any of the above schemes, it is preferred that the toothed part has a mounting hole on the back side of the toothed groove, and the toothed part is fixedly mounted on the transverse support plate through the mounting hole. The toothed part moves laterally with the transverse support plate to bear the weight of the vertically moving part of the milling device.

[0013] In any of the above solutions, it is preferred that the driving and holding device adopts a linear drive.

[0014] In any of the above schemes, it is preferred that the power source of the linear actuator is driven by any one of electricity, liquid and gas, and can maintain a reliable extension position when there is no power source input.

[0015] In any of the above schemes, it is preferred that, under the action of the driving and holding device, the locking tongue mechanism is always reliably embedded in the toothed groove until the driving and holding device introduces power to move the locking tongue mechanism out.

[0016] In any of the above solutions, it is preferred that when the milling device has a tendency to move upward, the locking tongue mechanism can smoothly leave the toothed groove without interference.

[0017] In any of the above schemes, preferably, the locking tongue mechanism includes a locking tongue, and each time the locking tongue mechanism moves upward by one tooth pitch, the locking tongue is completely embedded in the next tooth-shaped groove.

[0018] The locking tongue mechanism can rotate freely around the rotating shaft in a set space, and the locking tongue is embedded in the toothed groove after the locking tongue mechanism rotates a certain angle, so as to realize the locking of the milling device.

[0019] In any of the above schemes, it is preferred that when the driving and holding device has no power source input and the milling device has a tendency to move downward, the locking tongue mechanism is tightly attached to the upper surface of the inner wall of the toothed groove and forms a self-locking structure to ensure that the milling device does not move downward.

[0020] When there is no power source input, the driving and holding device can push the locking tongue mechanism to the maximum limit position, so that the locking tongue is embedded in the toothed groove and always maintains the maximum limit position. When unlocking is required, the milling device control system inputs power source to the driving and holding device, and the driving and holding device drives the locking tongue to rotate to the minimum limit position under the action of the power source to complete the unlocking of the mechanism.

[0021] In any of the above solutions, preferably, the number of the toothed grooves is set according to actual needs.

[0022] In any of the above schemes, it is preferred that the position detection sensor adopts a contact position sensor.

[0023] In any of the above schemes, it is preferred that the position detection sensor adopts a proximity position sensor.

[0024] In any of the above solutions, it is preferred that the contact position sensor adopts a travel switch or a two-dimensional matrix position sensor.

[0025] In any of the above solutions, it is preferred that the proximity position sensor adopts an electromagnetic position sensor.

[0026] In any of the above solutions, it is preferred that the proximity position sensor adopts a photoelectric position sensor.

[0027] In any of the above schemes, it is preferred that the proximity position sensor adopts a differential transformer position sensor.

[0028] In any of the above solutions, it is preferred that the proximity position sensor adopts an eddy current position sensor.

[0029] In any of the above solutions, it is preferred that the proximity position sensor adopts a capacitive position sensor.

[0030] In any of the above solutions, it is preferred that the proximity position sensor adopts a reed switch position sensor.

[0031] In any of the above solutions, it is preferred that the proximity position sensor adopts a Hall position sensor.

[0032] A milling device comprises the vertical locking mechanism used for the milling device under multiple working conditions according to any one of the above preferred schemes.

[0033] The beneficial effects of the present invention compared with the prior art are:

[0034] (1) This vertical locking mechanism can meet the locking requirements under working conditions such as milling device retraction, high-speed operation, emergency lifting, and control system power failure;

[0035] (2) The vertical locking mechanism adopts modular design, with ingenious and compact structure, saving installation space, simple assembly, and easy operation and control;

[0036] (3) The present invention adopts a toothed part as a locking fixed end, so that the locking mechanism has multiple locking positions, meeting the inspection and maintenance requirements of the milling device;

[0037] (5) The drive holding device adopts a linear drive with a reset holding function, which further reduces the number of parts and has a good degree of integration. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 The figure is a schematic diagram of the locking state structure of a preferred embodiment of the vertical locking mechanism for a milling device under multiple working conditions according to the present invention.

[0039] Figure 2 The vertical locking mechanism for a milling device under multiple working conditions according to the present invention is Figure 1 A schematic diagram of the unlocked state structure of the illustrated embodiment.

[0040] Figure 3 The vertical locking mechanism for a milling device under multiple working conditions according to the present invention is Figure 1 Axonometric view of the illustrated embodiment.

[0041] Figure 4 The vertical locking mechanism for a milling device under multiple working conditions according to the present invention is Figure 1 Front view of the illustrated embodiment.

[0042] Figure 5 The vertical locking mechanism for a milling device under multiple working conditions according to the present invention is Figure 1 Top view of the illustrated embodiment.

[0043] Description of reference numerals:

[0044] 1 horizontal support plate; 2 toothed part; 3 rotating shaft; 4 locking tongue mechanism; 5 position detection sensor; 6 driving holding device; 7 vertical moving part of milling device; 8 ear seat. DETAILED DESCRIPTION

[0045] Combine the following Figure 1-5 The preferred technical solution of the vertical locking mechanism for the milling device under multiple working conditions is described in detail:

[0046] A vertical locking mechanism for a milling device under multiple working conditions, comprising a milling device vertical moving component 7, a transverse support plate 1, a locking tongue mechanism 4 and a drive retaining device 6, wherein the transverse support plate 1 is provided with a toothed part 2, the locking tongue mechanism 4 is hinged to the milling device vertical moving component 7, the drive retaining device 6 is hinged to the milling device vertical moving component 7, the locking tongue mechanism 4 is hinged to the drive retaining device 6 and enters the toothed groove through the drive retaining device 6.

[0047] The toothed part 2 is provided with a plurality of toothed grooves at a certain pitch. The locking tongue mechanism 4 is installed on the vertical moving part 7 of the milling device through the rotating shaft 3. The driving and holding device 6 is hinged on the vertical moving part 7 of the milling device through the ear seat 8.

[0048] The toothed member 2 provides a plurality of locking positions for the milling device, thereby meeting the locking requirements under various working conditions such as inspection, maintenance, and servicing of the milling device.

[0049] The plurality of tooth-shaped grooves are used to adapt to the locking of the milling device at different vertical positions. The number of the tooth-shaped grooves is set according to actual needs.

[0050] Two position detection elements are provided at two rotation limit positions of the locking tongue mechanism 4 , and the two position detection elements are used to feed back the position state of the locking tongue mechanism 4 to the milling device control system to achieve safety interlocking.

[0051] The two position detection elements preferably use position detection sensors 5. The position detection sensor 5 can be a contact position sensor or a proximity position sensor. The contact position sensor can be a travel switch or a two-dimensional matrix position sensor. The proximity position sensor can be any one of electromagnetic, photoelectric, differential transformer, eddy current, capacitor, reed switch, and Hall position sensor.

[0052] The toothed member 2 has a mounting hole at the back of the toothed groove, and the toothed member 2 is fixedly mounted on the transverse support plate 1 through the mounting hole. The toothed member 2 moves transversely with the transverse support plate 1 to bear the weight of the vertical moving component 7 of the milling device.

[0053] The driving and holding device 6 preferably adopts a linear drive. The power source of the linear drive can be selected to be driven by any one of electricity, liquid and gas.

[0054] Under the action of the drive and retention device 6, the locking tongue mechanism 4 is always reliably embedded in the tooth-shaped groove until the drive and retention device 6 introduces power to move the locking tongue mechanism 4 out. When the milling device has an upward movement trend, the locking tongue mechanism 4 can smoothly leave the tooth-shaped groove without interference. The locking tongue mechanism 4 includes a locking tongue, and when the locking tongue mechanism 4 moves upward by one tooth pitch each time, the locking tongue is completely embedded in the next tooth-shaped groove. When there is no power source input to the drive and retention device 6 and the milling device has a downward movement trend, the locking tongue mechanism 4 is close to the upper surface of the inner wall of the tooth-shaped groove and forms a self-locking structure to ensure that the milling device does not move downward.

[0055] Working principle of the present invention:

[0056] like Figure 1The figure shows the locking state of the vertical locking mechanism: when the rail milling vehicle is running at high speed, the milling device is in the car retracting position. At this time, the vertical locking mechanism locks the milling device in the car retracting position. The locked position remains reliably locked without power source input, and there is no risk of unlocking. The vertical locking mechanism is realized by driving the holding device 6. The driving holding device 6 remains in an extended state without power source input, pushes the lock tongue into the toothed groove on the toothed part 2, and applies a reverse force to keep it in the extended state. When the milling device has a downward movement tendency, on the one hand, the reverse force prevents the lock tongue from rotating toward the initial position, so that it can always be embedded in the toothed groove on the toothed part 2; on the other hand, the lock tongue mechanism 4 is subjected to an oblique upward force from the inner wall of the toothed groove of the toothed part 2, so that it has a clockwise rotation tendency, thereby ensuring that the lock tongue mechanism 4 is always embedded in the toothed groove of the toothed part 2.

[0057] like Figure 2 The figure shows the unlocked state of the vertical locking mechanism: when the milling device is unlocked and descended during the milling operation, the driving holding device 6 inputs the power source, and under the action of the power source, the linear drive overcomes its own reaction force to rotate the lock tongue mechanism 4 to the initial position, and the lock tongue mechanism 4 leaves the toothed groove on the toothed part 2, and the milling device completes the vertical unlocking.

[0058] When the milling device finishes the milling operation and is lifted vertically, the driving and holding device 6 drives the locking tongue mechanism 4 to rotate to the initial position, ensuring that the locking tongue and the toothed part 2 maintain a certain distance in space. After the milling device is lifted normally to the locking position, the driving and holding device 8 drives the locking tongue mechanism 4 to rotate to the locking limit position to complete the locking.

[0059] When the milling device is urgently lifted, considering the power-off condition of the operating system, the milling device has no other power source input except the accumulator supplying oil to the lifting cylinder. At this time, the locking mechanism drives the holding device 6 without a power source to drive the locking tongue mechanism 4 to rotate to the initial position. The locking tongue mechanism 4 and the toothed part 2 interfere with each other in space. When the milling device is lifted, the tooth tip on the toothed part 2 collides with the locking tongue mechanism 4. During this process, the locking tongue mechanism 4 rotates to the initial position by a certain angle under the oblique force of the tooth tip on the toothed part 2 until the locking tongue mechanism 4 leaves the tooth tip of the toothed part 2, and the locking tongue mechanism 4 is embedded in a toothed groove on the toothed part 2. With the emergency lifting of the milling device, the locking tongue and the tooth tip of the toothed part 2 continue the above process until the milling device is lifted to a safe height, at which time the locking tongue mechanism 4 is embedded in the toothed groove of the toothed part 2.

[0060] During inspection and maintenance, the toothed part 2 has a plurality of toothed grooves arranged at a certain pitch. As long as the vertical movement distance of the milling device is an integer multiple of the pitch of the toothed grooves of the toothed part 2, the milling device can find the corresponding locking position on the toothed part 2.

[0061] A milling device comprises the vertical locking mechanism used for the milling device under multiple working conditions according to any one of the above preferred schemes.

[0062] The above embodiments are only preferred technical solutions, and the various components and connection relationships involved are not limited to the above described implementation plans. The settings and connection relationships of the various components in the preferred solutions can be arbitrarily arranged and combined to form a complete technical solution.

Claims

1. A vertical locking mechanism for a milling device under multiple working conditions, comprising a milling device vertical moving component (7), a transverse support plate (1), a locking tongue mechanism (4) and a drive holding device (6), characterized in that: A toothed part (2) is mounted on the transverse support plate (1); a locking tongue mechanism (4) is hingedly connected to a milling device vertical moving part (7); a driving and holding device (6) is hingedly connected to the milling device vertical moving part (7); the locking tongue mechanism (4) is hingedly connected to the driving and holding device (6) and enters the toothed groove through the driving and holding device (6); a plurality of toothed grooves are arranged on the toothed part (2) at a certain pitch; the locking tongue mechanism (4) is mounted on the milling device vertical moving part (7) through a rotating shaft (3); the driving and holding device (6) is hingedly connected to the milling device vertical moving part (7) through an ear seat (8); under the action of the driving and holding device (6), the locking tongue mechanism (4) is always reliably embedded in the toothed groove until the driving and holding device (6) introduces power to move the locking tongue mechanism (4) out; when the milling device has a tendency to move upward, the locking tongue mechanism (4) can smoothly leave the toothed groove without interference. shaped groove; the locking tongue mechanism (4) comprises a locking tongue, and each time the locking tongue mechanism (4) moves upward by one tooth pitch, the locking tongue is completely embedded in the next tooth-shaped groove; two position detection elements are provided at two rotation limit positions of the locking tongue mechanism (4), and the two position detection elements are used to feed back the position state of the locking tongue mechanism (4) to the milling device control system to achieve safety interlocking; the toothed member (2) has a mounting hole at the back of the tooth-shaped groove, and the toothed member (2) is fixedly mounted on the transverse support plate (1) through the mounting hole, and the toothed member (2) moves transversely with the transverse support plate (1) to bear the weight of the vertical moving component (7) of the milling device; when the driving holding device (6) has no power source input and the milling device has a downward movement tendency, the locking tongue mechanism (4) is closely attached to the upper surface of the inner wall of the tooth-shaped groove and forms a self-locking structure to ensure that the milling device does not move downward.

2. The vertical locking mechanism for a milling device under multiple working conditions according to claim 1, characterized in that: The two position detection elements adopt position detection sensors (5).

3. The vertical locking mechanism for a milling device under multiple working conditions as claimed in claim 1, characterized in that: The driving and holding device (6) adopts a linear drive.

4. The vertical locking mechanism for a milling device under multiple working conditions as claimed in claim 3, characterized in that: The power source of the linear drive is driven by any one of electricity, liquid and gas.

5. The vertical locking mechanism for a milling device under multiple working conditions as claimed in claim 1, characterized in that: The number of the toothed grooves is set according to actual needs.

6. The vertical locking mechanism for a milling device under multiple working conditions as claimed in claim 2, characterized in that: The position detection sensor (5) adopts a contact type position sensor.

7. The vertical locking mechanism for a milling device under multiple working conditions as claimed in claim 2, characterized in that: The position detection sensor (5) adopts a proximity position sensor.

8. The vertical locking mechanism for a milling device under multiple working conditions as claimed in claim 6, characterized in that: The contact type position sensor adopts a travel switch or a two-dimensional matrix position sensor.

9. The vertical locking mechanism for a milling device under multiple working conditions as claimed in claim 7, characterized in that: The proximity position sensor adopts an electromagnetic position sensor.

10. The vertical locking mechanism for a milling device under multiple working conditions as claimed in claim 7, characterized in that: The proximity position sensor adopts a photoelectric position sensor.

11. The vertical locking mechanism for a milling device under multiple working conditions according to claim 7, characterized in that: The proximity position sensor adopts a differential transformer position sensor.

12. The vertical locking mechanism for a milling device under multiple working conditions as claimed in claim 7, characterized in that: The proximity position sensor adopts an eddy current position sensor.

13. The vertical locking mechanism for a milling device under multiple working conditions according to claim 7, characterized in that: The proximity position sensor adopts a capacitive position sensor.

14. The vertical locking mechanism for a milling device under multiple working conditions as claimed in claim 7, characterized in that: The proximity position sensor adopts a reed switch position sensor.

15. The vertical locking mechanism for a milling device under multiple working conditions as claimed in claim 7, characterized in that: The proximity position sensor adopts a Hall type position sensor.

16. A milling device, characterized in that: The vertical locking mechanism for a milling device under multiple working conditions comprises the vertical locking mechanism described in any one of claims 1 to 15.

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