CN105259022B - One kind prevents the secondary impact device that drops hammer - Google Patents
One kind prevents the secondary impact device that drops hammer Download PDFInfo
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- CN105259022B CN105259022B CN201510732342.7A CN201510732342A CN105259022B CN 105259022 B CN105259022 B CN 105259022B CN 201510732342 A CN201510732342 A CN 201510732342A CN 105259022 B CN105259022 B CN 105259022B
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- connecting rod
- lead
- locating piece
- bearing pin
- hammer
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Abstract
The invention discloses one kind to prevent the secondary impact device that drops hammer, including testing stand and drop hammer, the top of testing stand is provided with the left locating piece being parallel to each other and right locating piece, the top of left locating piece is provided with left lead, the top of right locating piece is provided with right lead, drop hammer and can while be slided up and down along left and right lead, pressure-bearing post is provided between left and right lead；The top of left locating piece is provided with left slider-crank mechanism, the top of right locating piece is provided with right slider-crank mechanism, left and right slider-crank mechanism includes first connecting rod and second connecting rod, the relative position of the opposite inner side of left and right lead offers stretching groove, one end of second connecting rod can be along groove disengaging be stretched out, and described device also includes being used to drive the trigger mechanism that first, second connecting rod in left and right slider-crank mechanism acts.The present invention effectively can prevent from dropping hammer secondary whereabouts when strike pressure-bearing post again, it is simple in construction, it is easy to operate.
Description
Technical field
Dropped hammer control technology field the invention belongs to gallery test system, more particularly to one kind prevents the secondary impact dress that drops hammer
Put.
Background technology
In deep tunnel excavates similar test, back needs to apply dynamic loading, and the realization of dynamic loading is by falling
Hammer the impact fallen into shape, lower backwardness of dropping hammer is upspring hits and result of the test can be impacted again to tunnel top, influences once
The accuracy of bump test experimental result.The research of anti-secondary impact mainly includes mechanical, pneumatic type, electromagnetism both at home and abroad at present
Formula, fluid pressure type etc..Such as semi-automatic pneumatic clamping device, height of drop computer controlled automatic and the lifting dropped hammer；Electromagnet is certainly
It is dynamic to catch, prevent sample by secondary pulse.And existing anti-secondary impact device is dropped hammer greatly both for small impingement testing machine
On anti-secondary impact device, lack for the anti-experimental rig that drops hammer of large-scale impact test.
As can be seen here, prior art is up for further improving.
The content of the invention
In place of the present invention is avoids above-mentioned the shortcomings of the prior art, there is provided a kind of for large-scale shock machine
Prevent the secondary impact device that drops hammer.
The technical solution adopted in the present invention is：
One kind prevents the secondary impact device that drops hammer, including testing stand and drops hammer, and the top of testing stand, which is provided with, to be parallel to each other
Left locating piece and right locating piece, the top of left locating piece be provided with left lead, the top of right locating piece is provided with right guiding
Post, left and right lead are parallel to each other, and drop hammer and can while be slided up and down along left and right lead, are set between left and right lead
There is pressure-bearing post, the top end face of left and right locating piece is higher than the top end face of pressure-bearing post；The inside of left and right lead is hollow structure,
The top of left locating piece is provided with left slider-crank mechanism, and the top of right locating piece is provided with right slider-crank mechanism, left and right song
Handle slide block mechanism includes first connecting rod and second connecting rod, and the relative position of the opposite inner side of left and right lead offers
Stretch out groove, one end of second connecting rod can be along stretching out groove disengaging for free end and the free end, the other end of second connecting rod and the
One end of one connecting rod is hinged, and the inwall of the other end of the first connecting rod of left slider-crank mechanism and left lead is connected, right song
The inwall of the other end of the first connecting rod of handle slide block mechanism and right lead is connected；The secondary impact device that prevents from dropping hammer also wraps
Include the trigger mechanism for driving first, second connecting rod in left and right slider-crank mechanism to act.
The trigger mechanism includes being used to trigger the left trigger mechanism of left slider-crank mechanism and for triggering right slide crank
The right trigger mechanism of block mechanism, left and right trigger mechanism include the bearing pin for being arranged on the hinged place of first connecting rod and second connecting rod
And spring, the axis of bearing pin perpendicular to the plane where the top end face of left and right locating piece, one end of the spring of left trigger mechanism with
The hinged place of first, second connecting rod is connected, the inwall of the other end and left lead is connected, one end of the spring of right trigger mechanism and
The hinged place of first, second connecting rod is connected, the inwall of the other end and right lead is connected, and bullet after pressure-bearing post is encountered in whereabouts of dropping hammer
Rise, during upspringing, the left and right end dropped hammer carries bearing pin and moved up respectively, and first, second connecting rod is in bearing pin and the dual work of spring
Firmly move down and cause second connecting rod to be stretched out out of stretching groove, from the second connecting rod stretched out is stretched out in groove under holding again
What is fallen drops hammer.
The top of the bearing pin is fixed with block, and block is in coniform, and block includes mutually connected pointed cone portion and lifted
Portion, the top for lifting portion and bearing pin are connected, and pointed cone portion is located at the top in the portion that lifts.
The original state of the spring is tensioning state.
The left and right lead includes antetheca, rear wall, left wall and right wall；Wherein, the first connecting rod of left trigger mechanism with
The medial surface of the left wall of left lead is connected, and the medial surface of the spring of left trigger mechanism and the antetheca of left lead is connected, and a left side is led
The bottom of the right wall of left lead is opened in the stretching groove on post；The right wall of the first connecting rod of right trigger mechanism and right lead
Medial surface be connected, the medial surface of the spring of right trigger mechanism and the rear wall of right lead is connected, the stretching groove on right lead
It is opened in the bottom of the left wall of right lead.
The rear wall of the left lead is put with offering bearing pin resettlement groove, the half of bearing pin on the antetheca of right lead
In in bearing pin resettlement groove.
Hole slot is offered on the testing stand, pressure-bearing post is seated in hole slot.
The length of the second connecting rod is more than the length of first connecting rod.
By adopting the above-described technical solution, having the beneficial effect that acquired by the present invention：
1st, the invention provides a kind of device of the secondary impact that prevents from dropping hammer on large-scale shock machine, the present invention
In drop hammer whereabouts when bearing pin can be extruded into the whereabouts track to drop hammer, when drop hammer encounter pressure-bearing post after, drop hammer and upspring and carry
Bearing pin moves up, and the spring of tensioning can pull the hinged place of first, second connecting rod, pair of first, second connecting rod in bearing pin and spring
Recast is firmly lower to move and second connecting rod, to form the holding to dropping hammer during secondary whereabouts, is prevented from stretching in groove is stretched out
The secondary impact pressure-bearing post that drops hammer.
2nd, the present invention is simple and compact for structure, and easy to operate, cost of manufacture is relatively low.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the connection relationship diagram of first connecting rod in the present invention, second connecting rod, spring and bearing pin.
Wherein,
1st, left lead 2, drop hammer 3, right lead 4, right locating piece 5, testing stand 6, left locating piece 7, pressure-bearing post
8th, bearing pin 9, spring 10, first connecting rod 11, second connecting rod 12, block 13, stretching groove
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but the present invention is not limited to
These embodiments.
As depicted in figs. 1 and 2, one kind prevents the secondary impact device that drops hammer, including testing stand 5 and drops hammer 2, testing stand 5
Top is provided with the left locating piece 6 and right locating piece 4 being parallel to each other, and the top of left locating piece 6 is provided with left lead 1, and the right side is fixed
The top of position block 4 is provided with right lead 3, and left and right lead is parallel to each other, and dropping hammer 2 can be simultaneously along above and below left and right lead
Sliding, be provided with pressure-bearing post 7 between left and right lead, hole slot is offered on testing stand 5, pressure-bearing post 7 is seated in hole slot, left,
The top end face of right locating piece is higher than the top end face of pressure-bearing post 7；The inside of left and right lead is hollow structure, left locating piece 6
Top is provided with left slider-crank mechanism, and the top of right locating piece 4 is provided with right slider-crank mechanism, left and right crank block machine
Structure includes first connecting rod 10 and second connecting rod 11, and the length of second connecting rod 11 is more than the length of first connecting rod 10, left and right guiding
The relative position of the opposite inner side of post, which offers, stretches out groove 13, and one end of second connecting rod 11 is free end and the free end energy
Enough to be passed in and out along stretching groove 13, one end of the other end and first connecting rod 10 of second connecting rod 11 is hinged；It is described prevent from dropping hammer it is secondary
Percussion device also includes being used to drive the trigger mechanism that first, second connecting rod in left and right slider-crank mechanism acts.
The trigger mechanism includes being used to trigger the left trigger mechanism of left slider-crank mechanism and for triggering right slide crank
The right trigger mechanism of block mechanism, left and right trigger mechanism include being arranged on first connecting rod 10 and the hinged place of second connecting rod 11
Bearing pin resettlement groove is offered on bearing pin 8 and spring 9, the rear wall of the left lead 1 and the antetheca of right lead 3, bearing pin 8
Half is placed in bearing pin resettlement groove, the axis of bearing pin 8 perpendicular to the plane where the top end face of left and right locating piece, spring 9
Original state is tensioning state (i.e. in the state before falling for the first time of dropping hammer)；The left and right lead include antetheca, after
Wall, left wall and right wall；Wherein, the first connecting rod 10 of left trigger mechanism and the medial surface of the left wall of left lead 1 are connected, left triggering
The medial surface of the spring 9 of mechanism and the antetheca of left lead 1 is connected, and the stretching groove on left lead 1 is opened in left lead 1
The bottom of right wall；The first connecting rod 10 of right trigger mechanism and the medial surface of the right wall of right lead 3 are connected, the bullet of right trigger mechanism
The medial surface of spring 9 and the rear wall of right lead 3 is connected, and the stretching groove on right lead 3 is opened under the left wall of right lead 3
Portion；Drop hammer after pressure-bearing post 7 is encountered in 2 whereabouts and upspring, during upspringing, the 2 left and right end of dropping hammer carries bearing pin 8 and moved up respectively, and
First, second connecting rod moves under the double reaction plus of bearing pin 8 and spring 9 and causes second connecting rod 11 to be stretched out out of stretching groove, from
That stretches out that the second connecting rod 11 stretched out in groove is used for that holding to fall again drops hammer 2, effectively prevent and drops hammer the two of 2 pairs of pressure-bearing posts 7
Secondary shock.
For meet drop hammer 2 whereabouts when smoothly bearing pin 8 can be extruded into drop hammer 2 whereabouts track in and drop hammer 2 upspring when energy
Smoothly carry bearing pin 8 to move up, be connected block 12 on the top of bearing pin 8, and block 12 is in coniform, and block 12 includes mutually connected
Pointed cone portion and lift portion, lift portion and the top of bearing pin 8 and be connected, pointed cone portion drops hammer 2 positioned at the top in the portion that lifts so as to meet
The requirement smoothly fallen and smoothly lift bearing pin 8.
The part do not addressed in the present invention uses or used for reference prior art and can be achieved.
In the description of the invention, it is to be understood that term " " on ", " under ", it is "front", "rear", "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " top ", " bottom " " interior ", " outer " or position relationship are based on orientation shown in the drawings or position
Relation, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must have
There is specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
Specific embodiment described herein is only the spiritual example explanation to the present invention.Belonging to the present invention
Those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitutes, but without departing from the spiritual of the present invention or surmounts scope defined in appended claims.
Claims (6)
1. one kind prevents the secondary impact device that drops hammer, it is characterised in that including testing stand and drops hammer, the top of testing stand is provided with
The left locating piece and right locating piece being parallel to each other, the top of left locating piece are provided with left lead, and the top of right locating piece is set
There is right lead, left and right lead is parallel to each other, and drops hammer and can while be slided up and down along left and right lead, left and right lead
Between be provided with pressure-bearing post, the top end face of left and right locating piece is higher than the top end face of pressure-bearing post；The inside of left and right lead is
Hollow structure, the top of left locating piece are provided with left slider-crank mechanism, and the top of right locating piece is provided with right crank block machine
Structure, left and right slider-crank mechanism include first connecting rod and second connecting rod, and the length of the second connecting rod is more than first connecting rod
Length, the relative position of the opposite inner side of left and right lead offer stretching groove, one end of second connecting rod for free end and
The free end can be along groove disengaging be stretched out, and the other end of second connecting rod and one end of first connecting rod are hinged, left crank block machine
The inwall of the other end of the first connecting rod of structure and left lead is connected, the other end and the right side of the first connecting rod of right slider-crank mechanism
The inwall of lead is connected；The secondary impact device that prevents from dropping hammer is also including being used to drive in left and right slider-crank mechanism
The trigger mechanism of first, second connecting rod action, the trigger mechanism include being used for the left triggering machine for triggering left slider-crank mechanism
Structure and the right trigger mechanism for triggering right slider-crank mechanism, left and right trigger mechanism include being arranged on first connecting rod and the
The bearing pin and spring of the hinged place of two connecting rods, the axis of bearing pin touch perpendicular to the plane where the top end face of left and right locating piece, a left side
One end of the spring of hair mechanism is connected with the hinged place of first, second connecting rod, the inwall of the other end and left lead is connected, and the right side is touched
One end of the spring of hair mechanism is connected with the hinged place of first, second connecting rod, the inwall of the other end and right lead is connected, and drops hammer
Whereabouts is upspring after encountering pressure-bearing post, and during upspringing, the left and right end dropped hammer carries bearing pin and moved up respectively, and first, second connecting rod exists
Moved under the double reaction plus of bearing pin and spring and cause second connecting rod to be stretched out out of stretching groove, second stretched out out of stretching groove
Connecting rod drops hammer for what holding was fallen again.
2. one kind according to claim 1 prevents the secondary impact device that drops hammer, it is characterised in that the top of the bearing pin is consolidated
Block is connected with, block is in coniform, and block includes mutually connected pointed cone portion and lifts portion, and the top for lifting portion and bearing pin is consolidated
Even, pointed cone portion is located at the top in the portion that lifts.
3. one kind according to claim 1 prevents the secondary impact device that drops hammer, it is characterised in that the initial shape of the spring
State is tensioning state.
4. one kind according to any one of claims 1 to 3 claim prevents the secondary impact device that drops hammer, its feature exists
In the left and right lead includes antetheca, rear wall, left wall and right wall；Wherein, the first connecting rod of left trigger mechanism is led with a left side
It is connected to the medial surface of the left wall of post, the medial surface of the spring of left trigger mechanism and the antetheca of left lead is connected, left lead
On stretching groove be opened in left lead right wall bottom；The first connecting rod of right trigger mechanism is interior with the right wall of right lead
Side is connected, and the medial surface of the spring of right trigger mechanism and the rear wall of right lead is connected, and the stretching groove on right lead opens up
In the bottom of the left wall of right lead.
5. one kind according to claim 4 prevents the secondary impact device that drops hammer, it is characterised in that after the left lead
With offering bearing pin resettlement groove on the antetheca of right lead, the half of bearing pin is placed in bearing pin resettlement groove wall.
6. one kind according to claim 1 prevents the secondary impact device that drops hammer, it is characterised in that is opened up on the testing stand
There is hole slot, pressure-bearing post is seated in hole slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510732342.7A CN105259022B (en) | 2015-11-02 | 2015-11-02 | One kind prevents the secondary impact device that drops hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510732342.7A CN105259022B (en) | 2015-11-02 | 2015-11-02 | One kind prevents the secondary impact device that drops hammer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105259022A CN105259022A (en) | 2016-01-20 |
| CN105259022B true CN105259022B (en) | 2017-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510732342.7A Active CN105259022B (en) | 2015-11-02 | 2015-11-02 | One kind prevents the secondary impact device that drops hammer |
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| Country | Link |
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| CN (1) | CN105259022B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520696B (en) * | 2018-12-10 | 2024-05-24 | 山东科技大学 | Multi-point multi-directional drop hammer impact device and test method |
| CN113804562B (en) * | 2021-09-18 | 2024-06-28 | 上海仪器仪表自控系统检验测试所有限公司 | Pendulum bob protection device |
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| CN101936846A (en) * | 2009-06-30 | 2011-01-05 | 上海华龙测试仪器有限公司 | Anti-secondary hit device of drop hammer impact tester |
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| CN105259022A (en) | 2016-01-20 |
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