CN220668184U

CN220668184U - Universal shaft for suction equipment

Info

Publication number: CN220668184U
Application number: CN202322290034.6U
Authority: CN
Inventors: 魏吉皓; 廖晋豪; 张振京
Original assignee: Hangzhou Quadrant Future Technology Co ltd
Current assignee: Hangzhou Quadrant Future Technology Co ltd
Priority date: 2023-08-25
Filing date: 2023-08-25
Publication date: 2024-03-26
Anticipated expiration: 2033-08-25

Abstract

The utility model discloses a universal shaft for suction equipment, which comprises the suction equipment, wherein a load sensor of the suction equipment is connected with the upper part of a suction test jig through a double-shaft universal shaft, the double-shaft universal shaft comprises an upper joint used for connecting the load sensor and a lower joint used for connecting the upper part of the suction test jig, the upper joint and the lower joint are connected through a sleeve, inclined plane locking blocks are symmetrically arranged in the sleeve up and down, the two inclined plane locking blocks are fixed on the sleeve through locking mechanisms, the upper joint is in rotary fit with the inclined plane locking blocks of the upper part, the lower joint is in rotary fit with the inclined plane locking blocks of the lower part, a locking ring is arranged on the inclined plane locking blocks of the upper part, the upper joint is limited by the locking ring, and a threaded cover is arranged at the upper end of the sleeve and is in threaded connection with the sleeve.

Description

Universal shaft for suction equipment

Technical Field

The utility model relates to the technical field of suction equipment, in particular to a universal shaft for suction equipment.

Background

The sensor 2 of the existing suction device 1 is hard-connected with the upper part 3 of the suction test fixture by adopting a hard connecting rod 12, as shown in fig. 1, however, the suction test fixture is easy to incline after hard connection, so that the data of the suction device test are unstable, and the device and the fixture are often required to be repeatedly checked and tried for many times to reach a more ideal device state.

To this end, the present application proposes a cardan shaft for a suction device, correcting the parallelism differences existing between the device itself and the sensor.

Disclosure of Invention

In view of the problems existing in the prior art, the utility model aims to provide a universal shaft for suction equipment, one end of the universal shaft is connected with a sensor, and the other end of the universal shaft is connected with the upper part of a suction test jig, so that the parallelism difference existing between the upper part of the suction test jig and the sensor can be effectively corrected.

The technical scheme of the utility model is as follows:

the utility model provides a universal shaft for suction equipment, includes suction equipment, and wherein load sensor and suction test jig upper portion of suction equipment pass through biax universal shaft connection, and wherein biax universal shaft is including the top connection that is used for connecting load sensor and the lower clutch that is used for connecting suction test jig upper portion, top connection and lower clutch pass through telescopic connection, the inside symmetry of sleeve is equipped with the inclined plane latch segment from top to bottom, and wherein two inclined plane latch segments are fixed in on the sleeve through locking mechanism, and wherein the inclined plane latch segment normal running fit of top connection and upper portion, the inclined plane latch segment normal running fit of lower part is equipped with the locking ring on the inclined plane latch segment of upper portion, the top connection passes through the locking ring spacing, the sleeve upper end is equipped with the screw cap, screw cap and sleeve threaded connection.

Further, the upper joint comprises an upper joint connecting shaft I, and one end of the upper joint connecting shaft I is provided with a spherical protrusion I; the lower joint comprises a lower joint connecting shaft II, and a spherical protrusion II is arranged at one end of the lower joint connecting shaft II.

Further, the inclined locking block comprises a round base and a locking block arranged on the round base.

Further, the round base is provided with a spherical groove matched with the two spherical protrusions in size, and the two joints are in running fit with the corresponding spherical grooves.

Further, the locking mechanism comprises a screw locking block and a butterfly screw, wherein locking grooves matched with the locking block in size are symmetrically formed in two end faces of the screw locking block, and a through hole I matched with the butterfly screw in size is formed in the center of the screw locking block.

Further, the screw locking blocks are arranged between the two inclined plane locking blocks and are inserted into the locking grooves through the locking blocks to realize connection; the sleeve is provided with a connecting hole matched with the first through hole, and the screw locking block and the sleeve penetrate through the connecting hole and the first through hole through butterfly screws to be fixed.

Further, a connecting groove for connecting the load sensor connecting rod is formed in the first upper joint connecting shaft.

Further, the diameter of the second spherical bulge is larger than that of the sleeve.

Further, a limiting ring used for limiting the position of the spherical protrusion is arranged at the end part of the locking ring, facing the sleeve, of the locking ring, wherein the outer diameter of the limiting ring is smaller than the inner diameter of the sleeve, and the limiting ring is inserted into the sleeve.

Further, the end part of the sleeve, which is matched with the threaded cover, is provided with a connecting end, and the outer surface of the connecting end is provided with external threads, wherein the inner wall of the threaded cover is provided with internal threads.

Compared with the prior art, the utility model has the beneficial effects that:

1) The double-shaft universal shaft is used for connecting the load sensor of the suction device with the upper part of the suction test jig, and because the spherical protrusion of the upper joint is in rotary fit with the spherical groove of the upper part, the double-shaft universal shaft can rotate 360 degrees, and the spherical protrusion of the lower joint is in rotary fit with the spherical groove of the lower part, and can also rotate 360 degrees, so that the load sensor can be quickly and effectively regulated to be parallel to the upper part of the test jig;

2) Compared with the traditional hard connection through a shaft, the double-shaft universal shaft is utilized to connect, so that the adjustment is faster and more convenient;

3) The double-shaft universal shaft has the characteristics of reasonable structural design, convenience in installation, time saving and labor saving.

Drawings

FIG. 1 is a schematic diagram showing the connection between a sensor of a conventional suction device and the upper part of a suction test fixture;

FIG. 2 is a schematic view of a dual-axis gimbal for a suction apparatus according to the present utility model;

FIG. 3 is a cross-sectional view of a biaxial cardan shaft according to the present utility model;

FIG. 4 is an exploded view of a biaxial cardan shaft according to the present utility model;

FIG. 5 is a schematic view of a bevel lock block according to the present utility model;

FIG. 6 is a schematic diagram of a second embodiment of a bevel lock block according to the present utility model;

FIG. 7 is a schematic view of a screw locking block according to the present utility model;

fig. 8 is a schematic view of the upper joint structure in the present utility model.

In the figure: 1. a suction device; 2. a load sensor; 3. the upper part of the suction test fixture; 4. an upper joint; 401. the upper joint is connected with the first shaft; 4011. a connecting groove; 402. spherical protrusion I; 5. a lower joint; 501. the lower joint is connected with a second shaft; 502. spherical protrusion II; 6. a sleeve; 601. a connection hole; 602. a connection end; 7. an inclined plane locking block; 701. a circular base; 7011. a spherical groove; 702. a locking block; 8. a locking ring; 801. a limiting ring; 9. a screw cap; 10. a screw locking block; 101. a locking groove; 102. a first through hole; 11. butterfly screws; 12. a hard connecting rod.

Detailed Description

The utility model will be further described with reference to the accompanying drawings, but the scope of protection of the utility model is not limited to the described scope.

As shown in fig. 2, a universal shaft for a suction apparatus includes a suction apparatus 1 in which a load sensor 2 and a suction test jig upper part 3 of the suction apparatus are connected by a biaxial universal shaft, and parallelism between the load sensor 2 and the suction test jig upper part 3 of the suction apparatus connected by the biaxial universal shaft can be rapidly adjusted.

As shown in fig. 3, the biaxial cardan shaft comprises an upper joint 4 for connecting a load sensor, a lower joint 5 for connecting the upper portion of a suction test fixture, wherein the upper joint 4 and the lower joint 5 are connected through a sleeve 6, inclined locking blocks 7 are symmetrically arranged up and down inside the sleeve 6, wherein the two inclined locking blocks 7 are fixed on the sleeve 6 through locking mechanisms, the upper joint 4 is in running fit with the inclined locking blocks 7 on the upper portion, the lower joint 5 is in running fit with the inclined locking blocks 7 on the lower portion, locking rings 8 are arranged on the inclined locking blocks 7 on the upper portion, the upper joint 4 is limited by the locking rings 8, a threaded cover 9 is arranged at the upper end of the sleeve 6, and the threaded cover 9 is in threaded connection with the sleeve 6.

As shown in fig. 4, the upper joint 4 includes an upper joint connecting shaft 401, and one end of the upper joint connecting shaft 401 is provided with a spherical protrusion 402; the lower joint 5 comprises a second lower joint connecting shaft 501, and one end of the second lower joint connecting shaft 501 is provided with a second spherical protrusion 502.

As shown in fig. 5-6, the inclined locking block 7 comprises a circular base 701 and a locking block 702 mounted on the circular base 701, a spherical groove 7011 matched with two spherical protrusions in size is formed in the circular base 701, two joints are in running fit with the corresponding spherical groove 7011, the spherical protrusions of the two joints can rotate by 360 degrees in the spherical groove, and even if the load sensor 2 and the upper portion 3 of the suction testing jig are not parallel, the parallelism of the load sensor 2 and the upper portion 3 of the suction testing jig is realized by adjusting the angles of the spherical protrusions and the respective spherical grooves.

As shown in fig. 7, the screw locking block 10 is disposed between the two inclined locking blocks 7, and is inserted into the locking groove 101 through the locking block 702, thereby realizing connection.

The sleeve 6 is provided with a connecting hole 601 matched with the first through hole 102, and after the angles of the spherical protrusions and the respective spherical grooves are adjusted, the screw locking block 10 and the sleeve 6 are fixed through the connecting hole 601 and the first through hole 102 by a butterfly screw 11.

As shown in fig. 8, a connection groove 4011 for connecting the connection rod of the load sensor 2 is formed in the first upper joint connection shaft 401.

The second lower joint connecting shaft 501 is provided with a second through hole for connecting with the upper part 3 of the suction test fixture.

Assuming that the biaxial cardan shaft is used, even if the load sensor 2 of the suction device and the suction test jig upper portion 3 are inclined, the adjustment process is as follows:

firstly, the butterfly screw 11 is screwed to a loosening state, the upper joint 4 and the lower joint 5 are in a state capable of freely moving at the moment, the inclination error between the suction jig and the load sensor can be adjusted through free swinging between the two upper joints and the lower joint, when two ends tend to be in a relatively vertical state, the butterfly screw 11 is locked to enable the upper joint 4 and the lower joint 5 to be in a locked position, so that the upper part and the lower part of the suction jig connected with the butterfly screw are in a relatively parallel state, and possible angle errors between the jig and equipment are corrected by the universal shaft.

Claims

1. The utility model provides a cardan shaft for suction equipment, includes suction equipment (1), and wherein load sensor (2) and suction test jig upper portion (3) of suction equipment pass through biax cardan shaft connection, and wherein biax cardan shaft is including upper joint (4) that are used for connecting load sensor and lower joint (5) that are used for connecting suction test jig upper portion, upper joint (4) and lower joint (5) are connected through sleeve (6), its characterized in that sleeve (6) inside upper and lower symmetry is equipped with inclined plane latch segment (7), and wherein two inclined plane latch segments (7) are fixed in on sleeve (6) through locking mechanism, and wherein upper joint (4) and inclined plane latch segment (7) normal running fit on upper portion, be equipped with locking ring (8) on inclined plane latch segment (7) on lower part, upper joint (4) are spacing through locking ring (8), sleeve (6) upper end is equipped with screw cap (9), screw cap (9) and sleeve (6) threaded connection.

2. A cardan shaft for a suction device according to claim 1, characterised in that said upper joint (4) comprises an upper joint connection shaft (401), one end of said upper joint connection shaft (401) being provided with a spherical protrusion (402); the lower joint (5) comprises a second lower joint connecting shaft (501), and a second spherical bulge (502) is arranged at one end of the second lower joint connecting shaft (501).

3. A cardan shaft for a suction device according to claim 2, characterised in that the bevel locking block (7) comprises a circular base (701) and a locking block (702) mounted on the circular base (701).

4. A cardan shaft for a suction device according to claim 3, characterised in that said circular base (701) is provided with spherical grooves (7011) of a size matching the size of two spherical projections, with which the two joints are in a running fit.

5. The universal shaft for suction equipment according to claim 4, wherein the locking mechanism comprises a screw locking block (10) and a butterfly screw (11), locking grooves (101) matched with the locking block (702) in size are symmetrically formed in two end faces of the screw locking block (10), and a through hole I (102) matched with the butterfly screw (11) in size is formed in the center of the screw locking block (10).

6. A cardan shaft for a suction device according to claim 5, characterised in that the screw locking blocks (10) are arranged between two inclined locking blocks (7) and they are inserted into the locking grooves (101) by means of locking blocks (702) to effect the connection; the sleeve (6) is provided with a connecting hole (601) matched with the first through hole (102), and the screw locking block (10) and the sleeve (6) penetrate through the connecting hole (601) and the first through hole (102) through butterfly screws (11) to be fixed.

7. The universal shaft for suction equipment according to claim 6, characterized in that the first upper joint connecting shaft (401) is provided with a connecting groove (4011) for connecting a connecting rod of the load sensor (2).

8. A cardan shaft for a suction device according to claim 7, characterised in that the diameter of the spherical projection two (502) is greater than the diameter of the sleeve (6).

9. A cardan shaft for a suction device according to claim 1, characterised in that the end of the locking ring (8) facing the sleeve (6) is provided with a stop ring (801) for limiting the position of the spherical protrusion (402), wherein the outer diameter of the stop ring (801) is smaller than the inner diameter of the sleeve (6), and the stop ring (801) is inserted in the sleeve (6).

10. Cardan shaft for a suction device according to claim 9, characterised in that the end of the sleeve (6) cooperating with the screw cap (9) is provided with a connecting end (602), the outer surface of the connecting end (602) being provided with an external screw thread, wherein the inner wall of the screw cap (9) is provided with an internal screw thread.