CN217542361U - Zero position locking mechanism for test bed - Google Patents

Abstract

The utility model provides a zero position locking mechanical system for test bench, including locking base and locking arm, the locking arm rotates around vertical axis to be connected in locking base to make the other end of locking arm rotate to the upside or the downside of the every single move rack that is in the zero position, or rotate to the position that allows the every single move rack to rotate; the movable rod is arranged at the other end of the locking arm in a vertically movable mode, the locking arm is connected to the locking base in a rotating mode around a vertical axis, and when the other end of the locking arm rotates to the upper side or the lower side of the pitching rack, the locking arm moves towards the pitching rack and further abuts against the pitching rack. The utility model discloses zero-bit locking mechanical system is used for the initial position of spacing locking every single move rack, and zero-bit locking effect is more stable.

Description

Zero position locking mechanism for test bed

Technical Field

The utility model relates to a test bench field, in particular to zero-bit locking mechanical system for test bench.

Background

With the development of industrial technology, the automation level of mechanical equipment is continuously improved, and the safety requirements on the equipment are higher and higher. The attitude gantry is widely applied in various large-scale industrial fields and is generally used for simulating the operation attitude of tested equipment and components. The attitude rack is probably in an eccentric state under the zero initial position, and the attitude rack is kept in the zero state by means of a driving motor or a hydraulic cylinder under the ordinary condition, so that once the motor or the hydraulic cylinder fails, the risk of out-of-control of the attitude rack exists, the safety coefficient is low, and the operation is easy to miss.

Disclosure of Invention

In view of the above, the present invention has been made in order to provide a zero locking mechanism for a test stand that overcomes or at least partially solves the above-mentioned problems, and enables an attitude stand to be locked in a limited manner when returning to an initial position.

Specifically, the utility model provides a zero position locking mechanism for a test bed, which comprises a locking base; a lock arm rotatably connected at one end thereof to the lock base about a vertical axis; and a moving rod which is arranged at the other end of the locking arm in a vertically movable manner.

Optionally, the moving rod is a vertically arranged screw rod, and the screw rod is connected to the locking arm in a threaded manner.

Optionally, the lower end of the screw rod is connected with an elastic buffer block.

Optionally, the locking mechanism further comprises a limiting mechanism, the limiting mechanism comprises a positioning bolt penetrating through the locking arm, and the locking base is provided with at least two vertically-arranged positioning holes; when the other end of the locking arm rotates to the upper side or the lower side of the pitching rack, the positioning bolt is inserted into one positioning hole, and when the other end of the locking arm rotates to a position allowing the pitching rack to rotate, the positioning bolt is inserted into the other positioning hole.

Optionally, the locking arm and the locking base are connected through a hinged hole bolt and a nut mounted on a threaded section of the hinged hole bolt; the hinge hole bolt is detachably connected with the lifting lug, and the lifting lug is located at the head of the hinge hole bolt.

Optionally, a hand wheel is fixed at the upper end of the screw rod; the locking base is of a box-type structure and extends along the horizontal direction, and the locking arm is connected to one end of the locking base in a rotating mode.

The utility model has the advantages that:

1. the test bench is in an eccentric state under the zero initial position, the zero position state of the pitching bench is maintained only by the motor, and once the motor fails, the risk of out-of-control of the pitching bench exists. The utility model discloses a zero-bit locking mechanical system carries out mechanical positioning, greatly reduced the safety risk of rack self.

2. When the test bench returns initial position, only need to revolve the locking arm to rack moving one end, unscrew the hand wheel again for the accurate location of every single move rack can be realized to lead screw and every single move rack contact, and structural style is reliable and stable, and the easy operation flow of shang shou is simple and convenient.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic diagram of a zero position locking mechanism of the zero position locking mechanism for a test bed according to the present invention;

FIG. 2 is a schematic view of a plurality of positions of a zero position locking mechanism for a zero position locking mechanism of a test bed according to the present invention;

FIG. 3 is an overall schematic view of a zero locking mechanism for a test bed according to the present invention when applied to the test bed;

FIG. 4 is an enlarged view of portion A of the zero position locking mechanism for the test rig shown in FIG. 3 in an applied state.

Fig. 5 is a schematic diagram after rotation of the zero-position locking mechanism for the test bed according to the present invention in an applied state.

Detailed Description

A zero position locking mechanism for a test stand according to an embodiment of the present invention is described below with reference to fig. 1 to 5.

Fig. 1 is a schematic diagram of a zero-position locking mechanism for a test bed according to an embodiment of the present invention, as shown in fig. 1, and referring to fig. 2 to 5, an embodiment of the present invention provides a zero-position locking mechanism for a test bed, which first introduces its application state for easy understanding, the present invention is generally installed on a test bed, and the test bed includes a main body base 1, a pitching table 2, a rolling table and a locking device, wherein the rolling table is not shown in the drawing. The main part base includes two support frames, two the support frame is in the both sides of every single move rack, every single move rack rotationally install in two on the support frame.

Generally all be a plurality of the utility model discloses be applied to the test bench simultaneously, for example: a plurality of the utility model are symmetrically arranged at both sides of the rotation axis of the pitching frame 2. Referring to fig. 1 and 2, the present invention includes a locking arm 31, a locking base 32, a moving rod, and a limiting mechanism.

The lock base 32 is fixedly connected to the body base 1. Specifically, the lock base 32 has a box-like structure, extends in a horizontal direction perpendicular to the rotation axis of the pitching table 2, and has one end fixedly connected to the main body base 1 by a bolt and disposed on the outer periphery of the pitching table 2.

The other end of the lock base 32 is rotatably connected to one end of the lock arm 31 about a vertical axis so that the other end of the lock arm 31 is rotated to the upper or lower side of the pitch stand 2 at the null position, or to a position allowing the pitch stand 2 to be rotated. The rotational connection between the lock arm 31 and the lock base 32 may be set as follows: the lock arm 31 and the lock base 32 are connected by a hinge hole bolt 351 and a nut 352 mounted on a threaded section of the hinge hole bolt 351. The lifting lug 353 is detachably connected to the reamed hole bolt 351, the lifting lug 353 is located at the head of the reamed hole bolt 351, and in the process of replacing the reamed hole bolt 351 or other operations needing to disassemble the locking arm 31 and the locking base 32, the reamed hole bolt 351 can be lifted by using tools such as a crane and the like, so that the labor input is reduced.

The moving rod can move up and down relative to the locking arm 31 and is located at the other end of the locking arm, and when the locking arm 31 rotates around a vertical axis at one end of the locking arm at the upper side or the lower side of the pitching rack 2, the moving rod moves towards the pitching rack 2 and abuts against the pitching rack 2.

The limiting mechanism is mainly used for limiting the positions of the locking arm 31 before and after rotation, and comprises a positioning bolt 341 penetrating through the locking arm 31, and at least two positioning holes 342 are formed in the locking base 32; when the other end of the locking arm 31 is rotated to the upper side or the lower side of the pitching table frame 2, the positioning latch 341 is inserted into one of the positioning holes 342; when the other end of the lock arm 31 is rotated to a position where the pitch stand 2 is allowed to rotate, the positioning latch 341 is inserted into the other positioning hole 342.

Of course, the rotation position of the locking arm 31 may be set to three different positions, when the position of the lock base 32 is perpendicular to the rotation axis of the pitch gantry 2, the three positions of the locking arm 31 are respectively the position where the locking arm 31 and the lock base 32 are collinear, and the position where the locking arm 31 and the lock base 32 are ± 90 °, and similarly, the three positioning holes 342 need to be correspondingly set, the three corresponding holes and the three positions of the locking arm 31 of the null-position locking mechanism are in a one-to-one corresponding state, and the locking arm is rotated to the position and then performs the self-position limitation of the locking mechanism through the matching of the positioning pins 341 and the positioning holes 342.

When the lock arm 31 and the lock base 32 are in the postures of ± 90 °, one of the postures is that the lock arm 31 is located at the upper side or the lower side of the zero position of the pitch stage 2, so as to limit the movement of the pitch stage 2 due to failure; in the other posture, the lock arm 31 is away from the pitch stage 2, that is, the lock arm 31 is not on the upper side or the lower side of the pitch stage 2, and thus does not interfere with the rotation work of the pitch stage 2.

The moving rod is a screw rod 331 for abutting against the pitching frame 2, and the screw rod 331 is screwed to the locking arm 31.

In order to facilitate the person to rotate the lead screw 331, a hand wheel 332 is fixed to an end of the lead screw 331 remote from the pitch stand 2.

In addition, in order to avoid hard contact between the screw rod 331 and the pitching frame 2, an elastic buffer block 333 is connected to one end of the screw rod 331 close to the pitching frame 2, and the buffer block 333 can be made of rubber.

When the pitch stage 2 is in the null state, the locking arms 31 in all the null lock mechanisms are rotated so that the locking arms 31 are positioned at the upper side or the lower side of the pitch stage 2, and when the locking arms 31 are rotated to the right position, the positioning pins 341 are rotated and the lead screws 331 are rotated so that the buffer blocks 333 and the pitch stage 2 are in contact with each other, thereby restricting the movement of the pitch stage 2.

When the pitching rack 2 needs to rotate, the screw rods of all the zero-position locking mechanisms are screwed out upwards until all the buffer blocks 333 are separated from the surface of the pitching rack 2, and the positioning bolts 341 are detached; rotating all the locking arms 31 in the zero position locking mechanism until the locking arms 31 and the locking base 32 are in the collinear direction, and installing the positioning bolts 341; at this time, the pitching frame 2 is freely movable.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made to the invention consistent with the principles of the invention, which may be directly determined or derived from the disclosure of the present invention, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims (6)

1. A zero position locking mechanism for a test rig, comprising:

a locking base;

a lock arm rotatably connected at one end thereof to the lock base about a vertical axis;

and a moving rod which is arranged at the other end of the locking arm in a vertically movable manner.

2. A zero position locking mechanism for a test rig according to claim 1, wherein the moving rod is a vertically disposed lead screw threadedly connected to the locking arm.

3. The zero locking mechanism for the test bench according to claim 2, wherein the lower end of the screw rod is connected with an elastic buffer block.

4. The zero position locking mechanism for the test bed as claimed in claim 1, further comprising a limiting mechanism, wherein the limiting mechanism comprises a positioning bolt penetrating through the locking arm, and the locking base is provided with at least two vertically arranged positioning holes; when the other end of the locking arm rotates to the upper side or the lower side of the pitching rack of the test bench, the positioning bolt is inserted into one of the positioning holes, and when the other end of the locking arm rotates to a position allowing the pitching rack to rotate, the positioning bolt is inserted into the other positioning hole.

5. The zero position locking mechanism for the test bench of claim 1, wherein the locking arm and the locking base are connected through a reamed hole bolt and a nut mounted to a threaded section of the reamed hole bolt; the reaming hole bolt is detachably connected with a lifting lug, and the lifting lug is positioned at the head of the reaming hole bolt.

6. The zero locking mechanism for the test bed as claimed in claim 2, wherein a hand wheel is fixed at the upper end of the screw rod; the locking base is of a box-type structure and extends along the horizontal direction, and the locking arm is connected to one end of the locking base in a rotating mode.

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