Mechanical clamping and separating device

Abstract

The present invention discloses a mechanical snap-on separation device, which comprises: an upper separation mechanism, a snap-on shell and a reversing device; the upper separation mechanism is provided with a rotatable pin shaft and a positioning column vertically connected to the pin shaft, and the snap-on shell is provided with a snap-on hole; the reversing device is used to adjust the positioning position of the pin shaft of the upper separation mechanism to position it in a snap-on position or a release position; when the pin shaft is in the snap-on position, the pin shaft is snap-on with the snap-on hole; when the pin shaft is in the release position, the pin shaft can pass through the snap-on hole. The above-mentioned mechanical snap-on separation device of the present invention adopts a pure mechanical structure, and its performance is more reliable; in addition, it has strong environmental adaptability and does not require complex electrical mechanisms, thereby avoiding the problems of complex circuits and high failure rates.

Description

Technical Field

[0001] The invention relates to a connection device for connecting and separating two connection objects, and in particular to a mechanical clamping and separating device. Background Art

[0002] The connection and separation of two connected objects is a scenario that is often required in production practice. For example, electromagnetic lifting equipment is used to lift objects. The electromagnet is fixedly connected to the power lifting device, and the magnetic force of the electromagnet is used to attract the connected object to achieve the connection between the power lifting device and the connected object. When the connected object is moved to the specified position, the magnetic force of the electromagnet is adjusted to separate the connected object from the electromagnet. The lifting electromagnet is designed using the continuity principle of magnetic flux and the superposition principle of magnetic field. The magnetic circuit of the lifting electromagnet is designed into multiple magnetic systems. Through the relative movement of the magnetic system, the addition or cancellation of the magnetic field strength on the working magnetic pole surface is achieved, thereby achieving the purpose of holding and unloading. The lifting electromagnet has many advantages during use: the adsorption force can be kept consistent, and the tightness or looseness of the adsorption of the workpiece can be adjusted by the controller.

[0003] When conducting experiments related to falling objects, it is necessary to lift the object to the required specified height, and then let the object fall freely to conduct relevant tests and experiments. For example, when developing elevator safety mechanisms, it is necessary to conduct an elevator fall experiment, lift the elevator car to a high position, and then let it fall freely or stall to test the performance of the safety device. The lifting electromagnet rectifier control system has many components, complex circuits, and a high failure rate. After a failure occurs, it is time-consuming and laborious to find and repair it, which has a great impact on production. Electromagnetic devices have a safety hazard that the electromagnetic force disappears after power failure, so a safer and more reliable device is needed to simulate the fall of an object. Summary of the invention

[0004] The purpose of the present invention is to provide a mechanical clamping separation device to solve the safety problems existing in the existing lifting and separation devices.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a mechanical snap-on separation device, comprising: an upper separation mechanism, a snap-on shell and a reversing device; the upper separation mechanism is provided with a rotatable pin shaft and a positioning column vertically connected to the pin shaft, and the snap-on shell is provided with a snap-on hole; the reversing device is used to adjust the positioning position of the pin shaft of the upper separation mechanism so that it is positioned in a snap-on position or a release position; when the pin shaft is in the snap-on position, the pin shaft is snap-on with the snap-on hole; when the pin shaft is in the release position, the pin shaft can pass through the snap-on hole.

[0006] The mechanical snap-on separation device of the present invention as described above, further, the upper separation mechanism includes a rotating shaft, a connecting seat and a pin; the connecting seat is provided with an axial hole, the rotating shaft is installed in the axial hole, and the pin is vertically connected to the end of the rotating shaft.

[0007] The mechanical snap-on separation device of the present invention as described above, further, the upper separation mechanism also includes a first deep groove ball bearing and a second deep groove ball bearing, the first deep groove ball bearing is fixed to one end of the pin shaft, and the second deep groove ball bearing is fixed to the other end of the pin shaft.

[0008] The mechanical snap-on separation device of the present invention as described above, further, the upper separation mechanism also includes a limit column and a positioning rod, the limit column is fixed on the connecting seat, the limit column includes a first limit column and a second limit column, and the angle between the two is 90 degrees; the positioning rod is fixed on the rotating shaft, and when the rotating shaft rotates, the positioning rod swings between the first limit column and the second limit column.

[0009] The mechanical snap-on and separation device of the present invention as described above, further, the reversing device includes a reversing base, a reversing shaft and a reversing disk; a slot adapted to the positioning column is provided on the reversing disk; the reversing base is fixed in the snap-on shell, the reversing shaft is installed on the reversing base, and the reversing disk is fixed on the end of the reversing shaft.

[0010] The mechanical snap-on and release device of the present invention as described above further includes a power device, which drives the reversing shaft to rotate.

[0011] The mechanical clamping and separating device of the present invention as described above, further, the power device is a hydraulic power device, the power device includes a hydraulic cylinder, a hydraulic push rod, a first clamping plate and a second clamping plate; the reversing device also includes a reversing push rod, and the reversing push rod is vertically connected to the reversing shaft; the hydraulic cylinder is fixed in the clamping shell, and the first clamping plate and the second clamping plate are fixed to the ends of the hydraulic push rod; the first clamping plate and the second clamping plate are provided with connecting holes, and the first clamping plate and the second clamping plate are connected to the reversing push rod by bolts. Furthermore, the connecting hole is a connecting hole of a strip structure.

[0012] The mechanical snap-on separation device of the present invention as described above, further, the reversing device also includes a limit column and a positioning rod, the limit column is fixed on the reversing disk, the limit column includes a first limit column and a second limit column, and the angle between the two is 90 degrees; the positioning rod is fixed on the reversing shaft, and when the reversing shaft rotates, the positioning rod swings between the first limit column and the second limit column.

[0013] The mechanical snap-in and separation device of the present invention as described above, further, the reversing device also includes a limit column and a positioning rod, the limit column is fixed on the reversing disk; the positioning rod is fixed on the reversing shaft, the fixed position of the limit column corresponds to the snap-in position of the pin shaft, or the fixed position of the limit column corresponds to the release position of the pin shaft.

[0014] The mechanical clamping and separating device of the present invention adopts a purely mechanical structure, and has more reliable performance; in addition, it has strong environmental adaptability and does not require a complex electrical mechanism, thereby avoiding the problems of complex circuits and high failure rates. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or other advantages of the present invention will become clearer and easier to understand through the detailed description made in conjunction with the following drawings, which are only exemplary and do not limit the present invention, wherein:

[0016] Figure 1 A first schematic diagram of a mechanical snap-on separation device according to an embodiment of the present invention;

[0017] Figure 2 A second schematic diagram of a mechanical snap-on separation device according to an embodiment of the present invention;

[0018] Figure 3 A schematic diagram of an upper separation mechanism according to an embodiment of the present invention;

[0019] Figure 4 It is a partially enlarged schematic diagram of the upper separation mechanism of an embodiment of the present invention;

[0020] Figure 5 A schematic diagram of a reversing device according to an embodiment of the present invention;

[0021] Figure 6 It is a partial enlarged schematic diagram of a commutation device according to an embodiment of the present invention;

[0022] Figure 7 This is a schematic diagram of a limiting column and a positioning rod according to an embodiment of the present invention.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Upper separation mechanism, 11. Rotating shaft, 12. Pin shaft, 13. First deep groove ball bearing, 14. Second deep groove ball bearing, 15. Positioning column, 16. Connecting seat, 17. Limit column, 171. First limit column, 172. Second limit column, 18. Positioning rod, 19. Locking nut, 2. Guide frame, 21. Guide rod, 22. Guide slide block, 3. Reversing device, 31. Reversing base, 32. Reversing shaft, 33. Reversing push rod, 34. Reversing disk, 35. Slot, 4. Snap shell, 41. Snap hole, 5. Power device, 51. Hydraulic cylinder, 52. Hydraulic push rod, 53. First clamping plate, 54. Connecting hole, 55. Second clamping plate. DETAILED DESCRIPTION

[0025] Hereinafter, embodiments of the mechanical snap-on separation device of the present invention will be described with reference to the accompanying drawings.

[0026] The embodiments described herein are specific embodiments of the present invention, which are used to illustrate the concept of the present invention, are illustrative and exemplary, and should not be construed as limiting the embodiments of the present invention and the scope of the present invention. In addition to the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the claims and the contents disclosed in the specification of this application, including technical solutions that adopt any obvious replacement and modification of the embodiments described herein.

[0027] The drawings of this specification are schematic diagrams, which assist in explaining the concept of the present invention and schematically show the shapes of various parts and their mutual relationships. Please note that in order to clearly show the structures of various components of the embodiments of the present invention, the drawings are not drawn according to the same scale. The same reference numerals are used to represent the same parts.

[0028] Figure 1 A mechanical snap-on separation device according to an embodiment of the present invention is shown, which comprises: an upper separation mechanism 1, a snap-on shell 4 and a reversing device 3; the upper separation mechanism 1 is provided with a rotatable pin shaft 12 and a positioning column 15 vertically connected to the pin shaft 12, and the snap-on shell 4 is provided with a snap-on hole 41; the reversing device 3 is used to adjust the positioning position of the pin shaft 12 of the upper separation mechanism 1 to position it at a snap-on position or a release position; when the pin shaft 12 is at the snap-on position, the pin shaft 12 is snap-on with the snap-on hole 41; when the pin shaft 12 is at the release position, the pin shaft 12 can pass through the snap-on hole 41.

[0029] The above-mentioned mechanical snap-on separation device is applied to the temporary connection between two main bodies. For example, when developing the elevator safety mechanism, it is necessary to conduct an elevator fall test, lift the elevator car to a high position, and then let it fall freely or stall to test the performance of the safety device. The snap-on shell is fixed to the top of the elevator car, and the upper separation mechanism is connected to the lifting device. In a specific embodiment, the tested elevator system is provided with a guide rail, and the elevator car moves up and down in the guide rail; the upper separation mechanism is connected to the guide frame, that is, the upper separation mechanism is fixed to the guide rod 21 of the guide frame 2 by a locking nut 19, and the guide slider 22 is respectively fixed to the two ends of the guide rod 21, and the guide slider 22 is slidably connected to the guide rail.

[0030] The mechanical clamping and separating device of the present invention adopts a purely mechanical structure, and has more reliable performance; in addition, it has strong environmental adaptability and does not require a complex electrical mechanism, thereby avoiding the problems of complex circuits and high failure rates.

[0031] In a preferred embodiment of a mechanical snap-on separation device, the upper separation mechanism 1 includes a rotating shaft 11, a connecting seat 16 and a pin 12; the connecting seat is provided with an axial hole, the rotating shaft 11 is installed in the axial hole, and the pin 12 is vertically connected to the end of the rotating shaft 11. In order to reduce the friction between the pin and the snap-on shell, the upper separation mechanism 1 also includes a first deep groove ball bearing 13 and a second deep groove ball bearing 14, the first deep groove ball bearing 13 is fixed at one end of the pin 12, and the second deep groove ball bearing 14 is fixed at the other end of the pin 12. After the pin is inserted into the snap-on hole of the snap-on shell, the snap-on shell and the object fixedly connected to the snap-on shell (such as an elevator car for a drop test) are pulled up by the pulling force of the pin. When the deep groove ball bearing is not provided, the friction between the pin and the snap-on shell is very large, requiring a very powerful power device, and the mutual wear between the pin and the snap-on shell is also very large, which affects the service life and maintenance frequency of the device.

[0032] In a preferred embodiment of a mechanical snap-on separation device, the upper separation mechanism 1 further includes a limit column 17 and a positioning rod 18. The limit column 17 is fixed on the connection seat 16. The limit column 17 includes a first limit column 171 and a second limit column 172, and the angle between the two is 90 degrees; the positioning rod 18 is fixed on the rotating shaft 11, and the positioning rod 18 swings between the first limit column 171 and the second limit column 172 when the rotating shaft 11 rotates. The cooperation of the limit column and the positioning rod can prevent the deflection position of the rotating shaft from exceeding the snap-on position or the release position. In a further preferred embodiment, it also includes a tie spring, one end of the tie spring is connected to the positioning rod, and the other end is connected to the connection seat. The tie spring tie the rotating shaft in the snap-on position to prevent the rotating shaft from rotating to the release position when the reversing device does not apply external force to the rotating shaft. The tie spring can further improve the safety of the operation and use of the device and prevent the object connected to the snap-on shell from accidentally falling.

[0033] In a preferred embodiment of a mechanical snap-in separation device, the reversing device 3 includes a reversing base 31, a reversing shaft 32 and a reversing disc 34; a slot 35 adapted to the positioning column 15 is provided on the reversing disc 34; the reversing base 31 is fixed in the snap-in shell 4, the reversing shaft 32 is installed on the reversing base 31, and the reversing disc 34 is fixed at the end of the reversing shaft 32; the position of the reversing disc corresponds to the position of the snap-in hole provided on the snap-in shell. The mechanical snap-in separation device embodiment also includes a power device 5, which drives the reversing shaft 32 to rotate. The function of the reversing disc is to realize the connection between the positioning column and the slot after the pin shaft is inserted into the snap-in hole, the power device drives the reversing shaft to rotate, and then drives the positioning column to rotate, so that the pin shaft rotates to the snap-in position with the snap-in shell, the length of the pin shaft is greater than the width of the snap-in hole, and it cannot escape from the snap-in hole. In a specific embodiment, the slot is a rectangular parallelepiped structure, and the corresponding positioning column is a rectangular parallelepiped structure adapted thereto. In another embodiment, the slot is a triangular prism structure, and the corresponding positioning column is a triangular prism structure adapted thereto.

[0034] In a preferred embodiment of the mechanical clamping and separating device, the power device 5 is a hydraulic power device, and the power device 5 includes a hydraulic cylinder 51, a hydraulic push rod 52, a first clamping plate 53 and a second clamping plate 55; the reversing device 3 also includes a reversing push rod 33, and the reversing push rod 33 is vertically connected to the reversing shaft 32; the hydraulic cylinder 51 is fixed in the clamping shell 4, and the first clamping plate 53 and the second clamping plate 55 are fixed to the ends of the hydraulic push rod 52; the first clamping plate 53 and the second clamping plate 55 are provided with connecting holes 54, and the first clamping plate 53 and the second clamping plate 55 are connected to the reversing push rod 33 by bolts. In a preferred embodiment of the mechanical clamping and separating device, the connecting hole 54 is a connecting hole 54 of a strip structure. When releasing a heavy object (such as an elevator car), the snap-on shell is subjected to a large downward pulling force from the heavy object; the power device drives the reversing shaft to rotate, thereby driving the positioning column to rotate, so that when the pin shaft rotates to near the release position with the snap-on shell, the pin shaft will quickly fall into the snap-on hole, thereby applying an active pulling force to the reversing shaft. If this pulling force is transmitted to the hydraulic push rod and the hydraulic cylinder, it will cause damage to the hydraulic cylinder. The connecting holes with a strip structure can avoid the above problems.

[0035] In a preferred embodiment of the mechanical snap-on separation device, the reversing device 3 further includes a limit column 17 and a positioning rod 18. The limit column 17 is fixed on the reversing disk 34. The limit column 17 includes a first limit column 171 and a second limit column 172, and the angle between the two is 90 degrees. The positioning rod 18 is fixed on the reversing shaft 32. When the reversing shaft 32 rotates, the positioning rod 18 swings between the first limit column 171 and the second limit column 172. The limit column and positioning rod of the above structure can avoid the power device pushing the reversing shaft to make too large a movement range, so that the upper separation mechanism and the snap-on shell can be snapped or released more accurately.

[0036] In a preferred embodiment of the mechanical snap-on separation device, the reversing device 3 further includes a limit column 17 and a positioning rod 18, wherein the limit column 17 is fixed on the reversing disk 34; the positioning rod 18 is fixed on the reversing shaft 32, and the fixed position of the limit column 17 corresponds to the snap-on position of the pin 12, or the fixed position of the limit column 17 corresponds to the release position of the pin 12. The limit column and the positioning rod of the above structure can prevent the power device from pushing the reversing shaft to make an excessively large movement, so that the snap-on or release of the upper separation mechanism and the snap-on shell is more accurate.

[0037] The technical features disclosed above are not limited to the disclosed combinations with other features. Those skilled in the art may also make other combinations between the technical features according to the purpose of the invention to achieve the purpose of the invention.

Claims

1. A mechanical snap-on separation device, characterized in that: include: An upper separation mechanism (1), a snap-on shell (4) and a reversing device (3); the upper separation mechanism (1) is provided with a rotatable pin shaft (12) and a positioning column (15) vertically connected to the pin shaft (12); the snap-on shell (4) is provided with a snap-on hole (41); the reversing device (3) is used to adjust the positioning position of the pin shaft (12) of the upper separation mechanism (1) so that it is positioned at a snap-on position or a release position; when the pin shaft (12) is at the snap-on position, the pin shaft (12) is snap-on with the snap-on hole (41); when the pin shaft (12) is at the release position, the pin shaft (12) can pass through the snap-on hole (41); The reversing device (3) comprises a reversing base (31), a reversing shaft (32) and a reversing disc (34); a slot (35) adapted to the positioning column (15) is provided on the reversing disc (34); the reversing base (31) is fixed in the card shell (4), the reversing shaft (32) is mounted on the reversing base (31), and the reversing disc (34) is fixed to the end of the reversing shaft (32); The mechanical clamping and separating device further comprises a power device (5), wherein the power device (5) drives the reversing shaft (32) to rotate; The power device (5) is a hydraulic power device, and the power device (5) comprises a hydraulic cylinder (51), a hydraulic push rod (52), a first clamping plate (53) and a second clamping plate (55); the reversing device (3) also comprises a reversing push rod (33), and the reversing push rod (33) is vertically connected to the reversing shaft (32); the hydraulic cylinder (51) is fixed in the clamping shell (4), and the first clamping plate (53) and the second clamping plate (55) are fixed to the ends of the hydraulic push rod (52); the first clamping plate (53) and the second clamping plate (55) are provided with connecting holes (54), and the first clamping plate (53) and the second clamping plate (55) are connected to the reversing push rod (33) by bolts; The upper separation mechanism (1) comprises a rotating shaft (11), a connecting seat (16) and a pin shaft (12).

2. The mechanical snap-on separation device according to claim 1, characterized in that: The upper separation mechanism (1) further comprises a first deep groove ball bearing (13) and a second deep groove ball bearing (14), wherein the first deep groove ball bearing (13) is fixed to one end of the pin shaft (12), and the second deep groove ball bearing (14) is fixed to the other end of the pin shaft (12).

3. The mechanical snap-on separation device according to claim 2, characterized in that: The upper separation mechanism (1) further comprises a limiting column (17) and a positioning rod (18); the limiting column (17) is fixed on the connecting seat (16); the limiting column (17) comprises a first limiting column (171) and a second limiting column (172); the included angle between the first limiting column (171) and the second limiting column (172) is 90 degrees; the positioning rod (18) is fixed on the rotating shaft (11); when the rotating shaft (11) rotates, the positioning rod (18) swings between the first limiting column (171) and the second limiting column (172).

4. The mechanical snap-on separation device according to claim 1, characterized in that: The connection hole (54) is a connection hole (54) with a strip-shaped structure.

5. The mechanical snap-on separation device according to claim 1, characterized in that: The reversing device (3) further comprises a limit column (17) and a positioning rod (18); the limit column (17) is fixed on the reversing disk (34); the limit column (17) comprises a first limit column (171) and a second limit column (172); the included angle between the first limit column (171) and the second limit column (172) is 90 degrees; the positioning rod (18) is fixed on the reversing shaft (32); when the reversing shaft (32) rotates, the positioning rod (18) swings between the first limit column (171) and the second limit column (172).

6. The mechanical snap-on separation device according to claim 1, characterized in that: The reversing device (3) further comprises a limit column (17) and a positioning rod (18), wherein the limit column (17) is fixed on the reversing disk (34); the positioning rod (18) is fixed on the reversing shaft (32), and the fixed position of the limit column (17) corresponds to the clamping position of the pin shaft (12), or the fixed position of the limit column (17) corresponds to the release position of the pin shaft (12).

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