An automatic lifting and releasing mechanism for an acceleration weight

Abstract

The present invention provides an automatic lifting and releasing mechanism for an acceleration weight, comprising a frame, a weight, a guide assembly, a lifting assembly and a driving assembly, wherein the weight is arranged in the frame, a weight hanging ear is arranged on the outside of the weight, an opening slot is provided on the frame for the weight hanging ear to move up and down, the guide assembly is located on the outside of the opening slot, the lifting assembly is movably connected to the guide assembly, the lifting assembly is located below the weight hanging ear, and the lifting assembly is powered by the driving assembly, so that after the lifting assembly pushes the weight hanging ear to lift up to the designed height, the lifting assembly is separated from the weight hanging ear. The invention adopts a single hydraulic cylinder to lift the weight, and combines the mechanical structure design of the guide assembly, thereby solving the problem of complex and asynchronous coordination of multiple hydraulic cylinders in the current acceleration weight source structure design at home and abroad, and at the same time, after the weight is lifted to a certain height, the lifting assembly can be automatically separated from the weight to meet the movement requirements of releasing the weight, thus realizing the integration of lifting and releasing.

Description

Technical Field

[0001] The invention belongs to the technical field of urban shallow seismic exploration, and in particular relates to an automatic lifting and releasing mechanism of an acceleration weight. Background Art

[0002] Seismic exploration sources are divided into explosive sources and non-explosive sources, among which explosive sources are dynamite sources, and non-explosive sources can be divided into controllable sources and impact sources. Acceleration hammer sources belong to the impact sources among non-explosive sources, and impact sources also include artificial hammer sources, drop-weight hammer sources, and impact rammer sources. Acceleration hammer sources are gradually developed and improved from early drop-weight sources. Currently, most acceleration hammer sources increase the excitation speed and energy through strong coil springs, hydraulic or pneumatic drives, and lifting the hammer to accumulate power and releasing it is an important link to ensure the normal operation of the acceleration hammer source excitation device.

[0003] At present, most acceleration weight seismic sources divide lifting and releasing into two different mechanisms, that is, the weight is first lifted to store force for the spring and then suspended by a lock, and the release mechanism releases the weight when the seismic wave needs to be excited. The realization of the lifting and releasing functions makes the overall mechanical structure of the seismic source device complicated, which is inconvenient for later maintenance; moreover, the release mechanism of the seismic source devices at home and abroad currently suspends and releases the weight, which easily causes the weight to tilt slightly, increases the wear on the weight guide mechanism, and reduces the overall guidance accuracy of the seismic source device. Summary of the invention

[0004] The purpose of the present invention is to provide an acceleration weight automatic lifting and releasing mechanism, which can at least solve some of the defects existing in the prior art.

[0005] To achieve the above object, the present invention adopts the following technical solution:

[0006] An acceleration weight automatic lifting and releasing mechanism comprises a frame, a weight, a guide assembly, a lifting assembly and a driving assembly, wherein the weight is arranged in the frame, a weight hanging ear is arranged on the outside of the weight, an opening slot for the weight hanging ear to move up and down is opened on the frame, and the weight hanging ear at least partially extends out of the opening slot, the guide assembly is located outside the opening slot, the lifting assembly is movably connected to the guide assembly, the lifting assembly is located below the weight hanging ear, and the part of the weight hanging ear extending out of the opening slot is horizontally projected on the lifting assembly, the lifting assembly is powered by the driving assembly, so that after the lifting assembly pushes the weight hanging ear to lift upward along the frame direction to a designed height, the lifting assembly is separated from the weight hanging ear.

[0007] Furthermore, the frame is a cylindrical tube, and the heavy hammer is movably sleeved in the cylindrical tube.

[0008] Furthermore, a limiting ring for guiding the up and down movement of the weight is provided on the inner side of the frame.

[0009] Furthermore, the guide assembly includes a pair of annular guide plates, which are relatively arranged on both sides of the opening groove and welded to the frame; the inner side walls of the annular guide plates are provided with roller guide rails, and the roller guide rails have at least one vertical section and one inclined section, the vertical section is close to the frame side and arranged parallel to the frame axis, and the inclined section is arranged obliquely upward from the top of the vertical section to the side away from the frame, and the horizontal projection length of the inclined section is greater than the horizontal projection length of the weight hanging ear on the lifting assembly.

[0010] Furthermore, the upper end surface of the opening groove is higher than the upper end surface of the roller guide rail, and the vertical height between the upper end surface of the opening groove and the top end of the inclined section of the roller guide rail is greater than the height of the lifting assembly.

[0011] Furthermore, the lifting assembly includes a lifting block and rollers, the lifting block is located between a pair of annular guide plates, the rollers are fixed on both sides of the lifting block, and the rollers are rollingly connected to roller guide rails on the annular guide plates.

[0012] Furthermore, a groove is provided on the annular guide plate at the bottom end of the vertical section of the roller guide rail, the groove is smoothly connected to the vertical section of the roller guide rail, and the roller is placed in the groove.

[0013] Furthermore, the driving assembly includes a hydraulic cylinder, a hydraulic cylinder mounting ear seat is provided on the frame, the bottom of the cylinder body of the hydraulic cylinder is hinged to the hydraulic cylinder mounting ear seat, the hydraulic cylinder piston rod of the hydraulic cylinder is arranged parallel to the axis of the frame, and the end of the hydraulic cylinder piston rod is connected to the lifting assembly.

[0014] Furthermore, a U-shaped spring is welded on the frame, and the U-shaped spring is clamped on the cylinder body of the hydraulic cylinder.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The automatic lifting and releasing mechanism of the acceleration weight provided by the present invention has a simple structure, adopts a single hydraulic cylinder to lift the weight, and is combined with the mechanical structure design of the guide component, thereby solving the problems of complex and unsynchronized coordination of multiple hydraulic cylinders in the current acceleration weight source structure design at home and abroad. At the same time, after the weight is lifted to a certain height, the lifting component can be automatically separated from the weight to meet the movement requirements of releasing the weight, thereby realizing the integration of lifting and releasing.

[0017] The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a structural schematic diagram of the automatic lifting and releasing mechanism of the acceleration weight of the present invention;

[0019] Figure 2 It is a side view of the automatic lifting and releasing mechanism of the acceleration weight of the present invention;

[0020] Figure 3 It is a cross-sectional view of the automatic lifting and releasing mechanism of the acceleration weight of the present invention.

[0021] Explanation of the reference numerals in the accompanying drawings: 1. Frame; 2. Open slot; 3. Weight; 4. Annular guide plate; 5. Weight hanging ear; 6. Roller; 7. Lifting block; 8. Hydraulic cylinder; 9. U-shaped spring; 10. Hydraulic cylinder mounting ear seat; 11. Groove; 12. Inclined section; 13. Vertical section; 14. Limiting ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; in the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0024] like Figure 1 , Figure 2 and Figure 3As shown, this embodiment provides an acceleration weight automatic lifting and releasing mechanism, including a frame 1, a weight 3, a guide assembly, a lifting assembly and a driving assembly, the weight 3 is arranged in the frame 1, and a weight hanging ear 5 is arranged on the outside of the weight 3, which is used to cooperate with the lifting assembly to drive the weight 3 to lift, the frame 1 is provided with an open slot 2 for the weight hanging ear 5 to move up and down, and the weight hanging ear 5 at least partially extends out of the open slot 2, the guide assembly is located outside the open slot 2, the lifting assembly is movably connected to the guide assembly, the lifting assembly is located below the weight hanging ear 5, and the weight The part of the ear 5 extending out of the open slot 2 is horizontally projected onto the lifting assembly. The driving assembly is connected to the lifting assembly. The driving assembly provides power to enable the lifting assembly to move upward along the axis of the frame 1. Since the weight ear 5 is located above the lifting assembly, the weight ear 5 is lifted upward during the upward movement of the lifting assembly, thereby driving the weight 3 to be lifted upward along the direction of the frame 1. After the weight 3 is lifted to the designed height, the lifting assembly is controlled to automatically disengage from the weight ear 5 through the power provided by the driving assembly and the guiding effect of the guide assembly on the movement direction of the lifting assembly, thereby completing the release of the weight.

[0025] Optionally, the frame 1 is a cylindrical tube, and the weight 3 is movably sleeved in the cylindrical tube, and the cylindrical tube can guide the up and down movement of the weight 3. Optimally, a limit ring 14 can be provided on the inner side wall of the frame 1, and the limit ring 14 can be used to limit the weight 3, effectively avoiding the tilting of the weight 3 during the lifting and release process, and can further guide the up and down movement of the weight 3, and the number of the limit rings 14 can be set according to actual conditions, and multiple limit rings 14 are arranged at intervals along the axis of the frame 1.

[0026] As a specific implementation scheme, Figure 1 and Figure 3As shown, the guide assembly includes a pair of annular guide plates 4, which are symmetrically arranged on both sides of the opening groove 2 and welded and fixed on the frame 1; the inner side wall of the annular guide plate 4 has a roller guide rail, and the roller guide rail has at least one vertical section 13 and an inclined section 12, the vertical section 13 is arranged close to the side of the frame 1 and parallel to the axis of the frame 1, and the inclined section 12 is arranged obliquely upward from the top of the vertical section 13 to the side away from the frame 1. In this embodiment, the lifting assembly moves along the roller guide rail, wherein the height of the lifting assembly lifting the weight hanging ear 5 upward movement is controlled by the length of the vertical section 13. After the weight 3 is lifted to the designed height, the lifting assembly moves along the inclined section 12 of the roller guide rail to the side away from the frame 1, thereby gradually reducing the contact with the weight hanging ear 5 until the two are no longer in contact. At this time, the weight 3 will accelerate down along the frame 1 under the action of the power source and its own gravity to complete the release of the weight. It should be noted during this process that the horizontal projection length of the inclined section 12 should be greater than the horizontal projection length of the weight hanging ear 5 on the lifting assembly to ensure that the lifting assembly and the weight hanging ear 5 are completely separated.

[0027] Furthermore, the upper end surface of the opening groove 2 is higher than the upper end surface of the roller guide rail, and the vertical height between the upper end surface of the opening groove 2 and the top end of the inclined section 12 of the roller guide rail is greater than the height of the lifting assembly.

[0028] Specifically, the lifting assembly includes a lifting block 7 and a roller 6. The lifting block 7 is located between a pair of annular guide plates 4 and is used to push the weight hanging ear 5 to move upward along the frame 1. The roller 6 is fixed on both sides of the lifting block 7, and the roller 6 is rollingly connected to the roller guide rail on the annular guide plate 4. The roller 6 drives the lifting block 7 to move along the designed roller guide rail path to complete the lifting and release of the weight 3.

[0029] Furthermore, a groove 11 is provided on the annular guide plate 4 at the bottom end of the vertical section 13 of the roller guide rail, and the starting lifting position of the lifting assembly is limited by the groove 11. The groove 11 is smoothly connected to the vertical section 13 of the roller guide rail, and the roller 6 is placed in this groove 11.

[0030] Specifically, the driving assembly includes a hydraulic cylinder 8, a hydraulic cylinder mounting ear seat 10 is provided on the frame 1, the bottom of the cylinder body of the hydraulic cylinder 8 is hinged to the hydraulic cylinder mounting ear seat 10, the hydraulic cylinder piston rod of the hydraulic cylinder 8 is arranged parallel to the axis of the frame 1, and the end of the hydraulic cylinder piston rod is connected to the lifting block 7 of the lifting assembly. During the lifting process of the weight 3, the hydraulic cylinder piston rod pushes the lifting block 7 upward vertically along the axis of the frame 1, and during this process, the axis of the hydraulic cylinder 8 is parallel to the axis of the frame 1; during the process of the lifting block 7 moving along the inclined section 12 of the roller guide rail and disengaging from the weight hanging ear, the hydraulic cylinder 8 swings to the side away from the frame 1 to cooperate with the lifting block 7 to complete the separation from the weight hanging ear 5.

[0031] Optimally, a U-shaped spring 9 is welded on the frame 1, and the U-shaped spring 9 is clamped on the cylinder body of the hydraulic cylinder 8. The hydraulic cylinder 8 is fixed by the U-shaped spring 9, and the swing amplitude of the hydraulic cylinder 8 can be controlled at the same time.

[0032] In this embodiment, only a single hydraulic cylinder is needed to lift the weight, and combined with the mechanical structure design of the guide component, the problem of complex and asynchronous coordination of multiple hydraulic cylinders in the current acceleration weight source structure design at home and abroad is solved. At the same time, after the weight is lifted to a certain height, the guide path of the guide component is designed so that the lifting component can be automatically separated from the weight during the movement to meet the movement requirements of releasing the weight, thereby realizing the integration of jacking and release.

[0033] The above examples are merely illustrative of the present invention and do not constitute a limitation on the protection scope of the present invention. All designs that are the same or similar to the present invention fall within the protection scope of the present invention.

Claims

1. An automatic lifting and releasing mechanism for an acceleration weight. Features: The invention comprises a frame, a weight, a guide assembly, a lifting assembly and a driving assembly, wherein the weight is arranged in the frame, a weight hanging ear is arranged on the outside of the weight, an opening slot for the weight hanging ear to move up and down is opened on the frame, and the weight hanging ear at least partially extends out of the opening slot, the guide assembly is located outside the opening slot, the lifting assembly is movably connected to the guide assembly, the lifting assembly is located below the weight hanging ear, and the part of the weight hanging ear extending out of the opening slot is horizontally projected on the lifting assembly, the lifting assembly is powered by the driving assembly, so that after the lifting assembly pushes the weight hanging ear to be lifted upward along the frame direction to a designed height, the lifting assembly is separated from the weight hanging ear; The guide assembly includes a pair of annular guide plates, which are arranged on both sides of the opening groove relative to each other and are welded and fixed to the frame; the inner side walls of the annular guide plates are provided with roller guide rails, and the roller guide rails have at least one vertical section and one inclined section, the vertical section is arranged close to the frame side and parallel to the frame axis, and the inclined section is arranged obliquely upward from the top of the vertical section to the side away from the frame, and the horizontal projection length of the inclined section is greater than the horizontal projection length of the weight hanging ear on the lifting assembly; the lifting assembly includes a lifting block and a roller, the lifting block is located between the pair of annular guide plates, the rollers are fixed on both sides of the lifting block, and the rollers are rollingly connected to the roller guide rails on the annular guide plates.

2. The automatic lifting and releasing mechanism of the acceleration weight as claimed in claim 1, Features: The frame is a cylindrical tube, and the heavy hammer is movably sleeved in the cylindrical tube.

3. The automatic lifting and releasing mechanism of the acceleration weight as claimed in claim 2, Features: A limiting ring for guiding the up and down movement of the weight is arranged on the inner side of the frame.

4. The automatic lifting and releasing mechanism of the acceleration weight as claimed in claim 1, Features: The upper end surface of the opening groove is higher than the upper end surface of the roller guide rail, and the vertical height between the upper end surface of the opening groove and the top end of the inclined section of the roller guide rail is greater than the height of the lifting assembly.

5. The automatic lifting and releasing mechanism of the acceleration weight as claimed in claim 1, Features: The annular guide plate is provided with a groove at the bottom end of the vertical section of the roller guide rail, the groove is smoothly connected to the vertical section of the roller guide rail, and the roller is placed in the groove.

6. The automatic lifting and releasing mechanism of the acceleration weight as claimed in claim 1, Features: The driving assembly includes a hydraulic cylinder, a hydraulic cylinder mounting ear seat is provided on the frame, the bottom of the cylinder body of the hydraulic cylinder is hinged to the hydraulic cylinder mounting ear seat, the hydraulic cylinder piston rod of the hydraulic cylinder is arranged parallel to the axis of the frame, and the end of the hydraulic cylinder piston rod is connected to the lifting assembly.

7. The automatic lifting and releasing mechanism of the acceleration weight as claimed in claim 6, Features: A U-shaped spring is welded on the frame, and the U-shaped spring is clamped on the cylinder body of the hydraulic cylinder.

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