CN211452092U - Brake device of initiating explosive device testing machine - Google Patents
Brake device of initiating explosive device testing machine Download PDFInfo
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- CN211452092U CN211452092U CN201922485156.4U CN201922485156U CN211452092U CN 211452092 U CN211452092 U CN 211452092U CN 201922485156 U CN201922485156 U CN 201922485156U CN 211452092 U CN211452092 U CN 211452092U
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- brake
- steering shaft
- push wheel
- push
- testing machine
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Abstract
A brake device of an initiating explosive device testing machine is used for the initiating explosive device testing machine with a rotary interface, and comprises an operating rod, a steering shaft, a push wheel, a push block and a brake arm which are all rigid bodies; the included angle between the operating rod and the steering shaft is 75-105 degrees; the first positioning seat, the second positioning seat and the push wheel are sequentially sleeved along the steering shaft from the operating rod from near to far, the bottom of the push wheel is provided with a tangent plane and a flange facing forward, the brake arm is provided with a pair of major arc arcs which are symmetrically enclosed into a similar circle, and the push wheel tensions the brake arm through the push block to hold the rotary joint tightly. The utility model discloses can realize conveniently carrying out manual intervention brake to the swivelling joint in experimental storehouse, overall structure is succinct compact, and the brake is convenient effective, and the power supply of swivelling joint is cut off in the braking simultaneously, relieves brake state convenient operation. There is no need for the operating handle to be outside the device to cause a miss touch.
Description
Technical Field
The utility model relates to an initiating explosive device test equipment, an initiating explosive device testing machine brake equipment specifically says so.
Background
The initiating explosive device test mainly relates to the triggering safety and reliability test of shells, and tests the action of a contact switch under the autorotation or inertial motion of a set rotating speed by means of high-speed rotation of a test article by laboratory equipment. Emergency braking of the test procedure in special cases is a function that must be provided.
The rotary interface of the testing machine is driven by a variable frequency motor. The power supply of the motor is required to be synchronously cut off during emergency braking, and the physical braking is carried out while the motor circuit is braked reversely, so that the rotation of the rotary interface is rapidly stopped. The brake is manually operated, and the use is required to be convenient and reliable.
Disclosure of Invention
The utility model aims to solve the technical problem that solve provides an initiating explosive device testing machine brake equipment, can directly carry out the brake operation in experimental storehouse, is difficult for arousing the maloperation.
Initiating explosive device testing machine brake equipment for initiating explosive device testing machine that is equipped with rotary interface, its characterized in that: comprises an operating rod, a steering shaft, a push wheel, a push block and a brake arm which are all rigid bodies;
the steering shaft is in a long straight rod shape, the operating end of the steering shaft is integrally connected to the lower end of a rod-shaped operating rod through a fixedly connected transmission block, and the included angle between the operating rod and the steering shaft is 75-105 degrees; a first positioning seat, a second positioning seat and the push wheel are sequentially sleeved along the steering shaft from near to far away from the operating rod, the first positioning seat and the second positioning seat are respectively fixed with the bottom plate, and the push wheel is only fixedly connected with the steering shaft;
the push wheel is a cylinder body which is coaxial with the steering shaft, the bottom of the push wheel is provided with a tangent plane and a flange facing forwards, and the center line of the push wheel, which is perpendicular to the axis, passes through the circle center of the rotary interface;
the pushing block is an isosceles triangle cylinder with the bottom side parallel to the flange and is arranged below the tangent plane;
the brake arm is provided with a pair of excellent arc shapes which are symmetrically enclosed into a similar circle, an excellent arc rubber sheet is arranged between the brake arm and the rotary interface, one end of each of the pair of brake arms is connected in a positioning mode through a positioning pin shaft, the other end of each of the pair of brake arms is a free end, the positioning pin shaft and the push wheel are respectively arranged on two sides of the rotary interface, the free end is provided with a bent arm which is bent and extended outwards, the pair of bent arms are staggered and have a distance of 3-8mm, the inner side surfaces of the pair of bent arms are provided with oppositely arranged inclined surfaces, and the inclined surfaces face a pair of waist outer side walls of the push block.
Preferably, the rear end of the push wheel is closely adjacent to a limiting seat fixed with the bottom plate, and the top surface of the limiting seat is higher than the height of the axis of the push wheel.
Preferably, the transmission block is cuboid, one edge of the bottom surface of the transmission block abuts against the bottom plate in the braking state, and the operating rod overcomes the friction rotation between the edge and the bottom plate.
Preferably, a bearing is arranged between the first positioning seat and the steering shaft, and the distance between the steering shaft and the bottom plate is gradually reduced from the first positioning seat to the wheel pushing direction.
Preferably, a travel switch is arranged on one side of the crank arm along the movement direction of the crank arm, an induction head of the travel switch is provided with an end wheel which freely rotates around a shaft, and the travel switch is used for controlling the power supply of a motor of the rotary interface.
Preferably, the bottom of the push block is provided with a backing plate which extends backwards, and the backing plate is arranged below the push wheel and is arranged at a gap with the bottom end of the push wheel.
The utility model discloses can realize conveniently carrying out manual intervention brake to the swivelling joint in experimental storehouse, overall structure is succinct compact, and the brake is convenient effective, and the power supply of swivelling joint is cut off in the braking simultaneously, relieves brake state convenient operation. There is no need for the operating handle to be outside the device to cause a miss touch.
The encircling friction braking of the opposite rotating interface is utilized, the friction force application is uniform and symmetrical, and the braking efficiency is high. The rod-shaped handle is used for amplifying the force application torque, effective braking can be achieved, the rectangular transmission block can keep the braking state by using the edge, and the braking operation is stable and reliable. The push block is pushed forwards by the push wheel, the pair of simultaneous braking arms is tightened by the crank arms, the braking force of the rotary interface is uniformly and stably applied, the braking efficiency is high, and the braking state is conveniently released. The limiting seat ensures that the steering shaft does not deform due to the resistance of the push block. The steering shaft and the bottom plate have an inclination angle, so that on one hand, the reverse acting force of the push block is resisted, and meanwhile, the arrangement of the first positioning seat bearing is facilitated.
Drawings
Figure 1 is a schematic top view of the overall structure of the present invention,
figure 2 is a view of the pushing mechanism a of figure 1,
fig. 3 is a view of the lever actuator B of fig. 1.
In the figure: 1-an operating rod, 2-a transmission block, 3-a first positioning seat, 4-a steering shaft, 5-a second positioning seat, 6-a brake arm, 7-a rotating sleeve, 8-a crank arm, 9-a push block, 10-a push wheel, 11-a limiting seat, 12-a positioning pin shaft, 13-an end wheel, 14-a travel switch, 15-a flange, 16-a bottom plate, 17-a rubber sheet and 18-a cushion plate.
Detailed Description
The invention will be further described with reference to the following figures and examples: as shown in fig. 1, 2, 3 initiating explosive device testing machine brake equipment for be equipped with the rotary interface brake of the initiating explosive device testing machine of rotary interface, the bottom plate below of initiating explosive device testing machine at experimental storehouse is equipped with the inverter motor of frequency conversion controller control, and the bottom plate that experimental storehouse was worn out to inverter motor's output is equipped with rotary interface, and brake equipment is used for manual compulsory rotary interface brake stall for running state, including action bars 1, steering spindle 4, throw-out pulley 10, ejector pad 9 and brake arm 6 that are the rigid body.
As shown in fig. 1, the steering shaft 4 is in the shape of a long straight rod, one side surface of a cuboid-shaped transmission block 2 is fixedly connected to the operating end of the steering shaft 4, the adjacent side surfaces of the transmission block are integrally connected to the lower end of a rod-shaped operating rod 1, and the included angle between the operating rod 1 and the steering shaft 4 is 75-105 degrees. Therefore, the rotation control of the steering shaft can be realized by pulling or pushing the operating rod on the principle of a labor-saving wheel shaft. As shown in fig. 3, the transmission block 2 is a rectangular parallelepiped, and in a braking state, an edge of the bottom surface of the transmission block abuts against the bottom plate 16, and the transmission block can rotate along with the rotation of the operating lever to overcome the friction with the bottom plate and also abut against the bottom plate 16, so that after the braking action is performed, the reaction force of the brake arm 6 on the steering shaft 4 needs to overcome the friction between the edge abutting against the bottom plate and the bottom plate to break away the constraint of the rotary interface, i.e., the rotating sleeve 7 in fig. 1, and break away from the braking state.
As shown in fig. 1, a first positioning seat 3, a second positioning seat 5 and the push wheel 10 are sequentially sleeved along the steering shaft from the operating rod 1 from near to far, and the first positioning seat 3 and the second positioning seat 5 are respectively fixed with a bottom plate 16 for positioning the steering shaft. The push wheel 10 is only fixedly connected with the steering shaft 4, the push wheel 10 is used as an execution component of the steering shaft, and when the steering shaft rotates, the push wheel 10 rotates along with the steering shaft.
And a bearing is arranged between the first positioning seat 3 and the steering shaft 4 to reduce the brake resistance.
The distance between the steering shaft 4 and the bottom plate is gradually reduced towards the push wheel 10 at the first positioning seat 3. On the one hand, the reverse acting force of the push block is resisted, and meanwhile, the first positioning seat is lifted, so that the arrangement of a bearing of the first positioning seat is facilitated.
The push wheel 10 is a cylinder coaxial with the steering shaft 4, the bottom of the push wheel is provided with a tangent plane and a flange 15 facing forwards, the flange 15 is arranged behind the push block, and the push block can be pushed when the flange rotates forwards along with the steering shaft. The push wheel 10 is arranged at a position where a center line perpendicular to the axis passes through the center of the rotary interface.
The push block 9 is an isosceles triangle cylinder with the bottom side parallel to the flange 15 and is arranged below the tangent plane, the bottom side of the triangular push block is attached to the flange 15 of the push wheel, the push block is a main body and is provided with a top surface higher than the bottom end of the flange, and when the top surface can not contact with the tangent plane of the push wheel, the rotation of the push wheel is prevented from being limited.
As shown in fig. 2, a backing plate 18 extending rearward is provided at the bottom of the pushing block 9, and is provided below the pushing wheel with a gap from the bottom end of the pushing wheel. The backing plate 18 is arranged below the push wheel, so that the push block can be prevented from rising in the pushing process.
The brake arm 6 is provided with a pair of major arc shapes which are symmetrically enclosed into a closed arc shape, a major arc rubber sheet 17 is arranged between the brake arm 6 and the rotary interface, the vertical height of the rubber sheet 17 is equivalent to that of the brake arm 6, one end of each of the pair of brake arms is connected in a positioning mode through a positioning pin shaft 12, the other end of each of the pair of brake arms is a free end, and the positioning pin shafts and the push wheels are respectively arranged on two sides of the rotary interface, so that the rotary interface can be enclosed by the pair of brake arms 6, the pair of brake arms are only arranged at the overlapping positions in a staggered mode, and the two sides of each of the pair of brake arms are arranged.
The free end of the brake arm is provided with a bent and backward extending crank arm 8, the pair of crank arms 8 cross after being staggered in height, and the crank arms which are separated from the complementary interference are still set to be equal in thickness and height. The interval is 3-8mm after the staggering, the inner side surfaces of the pair of crank arms are provided with oppositely arranged inclined surfaces, and the inclined surfaces face the pair of waist outer side walls of the push block 9, so that the pair of inclined surfaces of the push block pushes the pair of crank arms when the push wheel 10 pushes forwards, and the pair of brake arms tightly hold the rotary connector.
The rear end of the push wheel 10 is closely adjacent to a limiting seat 11 fixed with a bottom plate 16, and the top surface of the limiting seat 11 is higher than the height of the axis of the push wheel 10. The limiting seat 11 can limit the steering shaft from deforming and bending under stress.
A travel switch 14 is arranged on one side of the crank arm 8 along the moving direction of the crank arm, as shown in figure 1, the travel switch 14 is arranged on the left side of the crank arm, and an induction head of the travel switch is provided with an end wheel 13 which freely rotates around a shaft, so that relative sliding friction can be avoided when the travel switch is in contact with the crank arm, and the travel switch is replaced by rolling contact. Deformation of the travel switch is avoided. The travel switch is used for controlling the power supply of a motor of the rotary interface, when the crank arm is pushed by the push block to stretch outwards, the crank arm is in contact with the end wheel 13 to trigger the travel switch, and the linkage circuit cuts off the power supply of the variable frequency motor or leads to reverse power supply to play a braking role.
The above structure determines that when the operating lever 1 is pulled backwards, the pair of brake arms clasp the rotating sleeve 7 through the rubber sheet 17, and the rotating sleeve is in physical contact with the brake to brake the brake forcibly. The whole structure is simple and compact, the braking effect is good, and the control is convenient.
Claims (6)
1. The utility model provides an initiating explosive device testing machine brake equipment for initiating explosive device testing machine with rotary interface, its characterized in that: comprises an operating rod (1), a steering shaft (4), a push wheel (10), a push block (9) and a brake arm (6) which are all rigid bodies;
the steering shaft (4) is in a long straight rod shape, the operating end of the steering shaft (4) is integrally connected to the lower end of a rod-shaped operating rod (1) through a fixedly connected transmission block (2), and the included angle between the operating rod (1) and the steering shaft (4) is 75-105 degrees; a first positioning seat (3), a second positioning seat (5) and the push wheel (10) are sequentially sleeved along the steering shaft from near to far away from the operating rod, the first positioning seat (3) and the second positioning seat (5) are respectively fixed with a bottom plate (16), and the push wheel (10) is only fixedly connected with the steering shaft (4);
the push wheel (10) is a cylinder coaxial with the steering shaft (4), the bottom of the push wheel is provided with a tangent plane and a flange (15) facing forwards, and the center line of the push wheel (10) perpendicular to the axis passes through the circle center of the rotary interface;
the push block (9) is an isosceles triangle cylinder with the bottom side parallel to the flange (15) and is arranged below the tangent plane;
the brake arm (6) is provided with a pair of major arc arcs which are symmetrically enclosed to be similar to a circle, a rubber sheet (17) of the major arc is arranged between the brake arm (6) and the rotary interface, one end of each brake arm is connected with one end of the corresponding brake arm in a locating mode through a locating pin shaft (12), the other end of each brake arm is a free end, the locating pin shaft and the push wheel are respectively arranged on two sides of the rotary interface, the free ends of the brake arms are provided with bent arms (8) which are bent and extended outwards, the back spacing of the bent arms (8) is 3-8mm in a staggered mode, the inner side faces of the bent arms are provided with oppositely arranged inclined faces, and the inclined faces face to a pair of waist outer side walls of the push.
2. The initiating explosive device testing machine brake device according to claim 1, characterized in that: the rear end of the push wheel (10) is closely adjacent to a limiting seat (11) fixed with the bottom plate (16), and the top surface of the limiting seat (11) is higher than the axial line of the push wheel (10).
3. The initiating explosive device testing machine brake device according to claim 1, characterized in that: the transmission block (2) is cuboid, one edge of the bottom surface of the transmission block is abutted against the bottom plate in the braking state, and the operation rod overcomes the friction rotation between the edge and the bottom plate.
4. The initiating explosive device testing machine brake device according to claim 1, characterized in that: a bearing is arranged between the first positioning seat (3) and the steering shaft (4), and the distance between the steering shaft (4) and the bottom plate is gradually reduced in the direction from the first positioning seat (3) to the push wheel (10).
5. The initiating explosive device testing machine brake device according to claim 1, characterized in that: a travel switch (14) is arranged on one side of the crank arm (8) along the motion direction of the crank arm, an induction head of the travel switch is provided with an end wheel (13) which freely rotates around a shaft, and the travel switch is used for controlling the power supply of a motor of a rotary interface.
6. The initiating explosive device testing machine brake device according to claim 1, characterized in that: the bottom of the push block (9) is provided with a backing plate (18) which extends backwards, and the backing plate is arranged below the push wheel and is arranged with a gap with the bottom end of the push wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922485156.4U CN211452092U (en) | 2019-12-31 | 2019-12-31 | Brake device of initiating explosive device testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922485156.4U CN211452092U (en) | 2019-12-31 | 2019-12-31 | Brake device of initiating explosive device testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211452092U true CN211452092U (en) | 2020-09-08 |
Family
ID=72297546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922485156.4U Active CN211452092U (en) | 2019-12-31 | 2019-12-31 | Brake device of initiating explosive device testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211452092U (en) |
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2019
- 2019-12-31 CN CN201922485156.4U patent/CN211452092U/en active Active
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