CN211180864U

CN211180864U - Mounting device for gear shaft in counter

Info

Publication number: CN211180864U
Application number: CN201922170058.1U
Authority: CN
Inventors: 艾文强; 马欢乐; 路振宽
Original assignee: Hebei Huijin Electromechanical Co Ltd
Current assignee: Hebei Huijin Group Co.,Ltd.
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-08-04
Anticipated expiration: 2029-12-06

Abstract

The utility model discloses an installation device of gear shaft in counter belongs to counter technical field, including base and casing locating component and the gear shaft installation component of setting on the base, the key lies in: the shell positioning assembly comprises a turntable, a plurality of shell limiting blocks which are uniformly arranged along the circumferential direction of the turntable and used for limiting the shell, and a rotary driving assembly for driving the turntable to rotate; the gear shaft mounting assembly comprises a gear shaft limiting block for bearing a gear shaft and a pushing cylinder for driving the gear shaft limiting block to move towards the specified shell limiting block and mounting the gear shaft in the bearing gear shaft into the shell in the shell limiting block. The utility model has the advantages that: 1. the efficient and rapid installation of the gear shaft and the shell can be realized, the installation efficiency is greatly improved, and the labor intensity is reduced; 2. the high-precision positioning of the shell is realized through the ratchet wheel and pawl structure, the friction plate and the positioning plate; 3. compact structure, high space utilization rate, convenient maintenance and low cost.

Description

Mounting device for gear shaft in counter

Technical Field

The utility model belongs to the technical field of the counter, particularly, relate to an installation device of gear shaft in counter.

Background

The counter is used as a device for counting, and has a wide application range. Such as pipettes used in medical, biological, biochemical, chemical and other laboratories for dosing liquids, for recording the number of pipettes.

The counter comprises a digit wheel and gears for driving the digit wheel to rotate, and the gears are respectively arranged on corresponding shafts. In the prior art, the gear shaft is often connected with the matched shell in a manual mode, the efficiency is low, and meanwhile, the installation precision cannot be guaranteed.

Disclosure of Invention

The to-be-solved problem of the utility model is to provide an installation device of gear shaft in counter, carry on spacingly through casing locating component to the casing, then gear shaft installation component inserts the gear shaft to the spacing hole of casing, realizes the installation of gear shaft and casing, provides the installation effectiveness greatly, has reduced intensity of labour.

In order to solve the technical problem, the utility model discloses a technical scheme is:

the utility model provides a mounting device of gear shaft in counter for install the gear shaft on the casing, including the base and set up casing locating component and gear shaft installation component on the base, the key lies in: the shell positioning assembly comprises a turntable, a plurality of shell limiting blocks which are uniformly arranged along the circumferential direction of the turntable and used for limiting the shell, and a rotary driving assembly for driving the turntable to rotate; the gear shaft mounting assembly comprises a gear shaft limiting block used for bearing a gear shaft and a pushing cylinder used for driving the gear shaft limiting block to move towards the specified shell limiting block and mounting the gear shaft in the gear shaft limiting block into the shell in the shell limiting block.

Furthermore, the turntable is limited on the base in a rotating mode through the vertical shaft and a matched bearing, the rotary driving assembly comprises a ratchet wheel arranged below the turntable, a pawl matched with the ratchet wheel and a rotary driving cylinder for driving the pawl to move, and the rotary driving cylinder is arranged on a mounting seat fixed above the base.

Furthermore, a friction sleeve is fixed below the ratchet wheel, a friction plate matched with the friction sleeve is arranged on the base, and a tension spring is arranged between the friction plate and the mounting seat.

Furthermore, a positioning cylinder is arranged on the base, and a positioning plate matched with a positioning groove in the shell limiting block is arranged at the driving end of the positioning cylinder.

Furthermore, a gear shaft conveying assembly is arranged on the base and comprises a positioning plate with a gear shaft conveying channel, a conveying motor located above the gear shaft conveying channel, a conveying wheel fixed on an output shaft of the conveying motor, a gear shaft shifting block butted with the conveying tail end of the gear shaft conveying channel, and a shifting cylinder driving the gear shaft shifting block to transversely move so that a gear shaft located in the gear shaft shifting block is placed in the gear shaft limiting block.

The utility model has the advantages that: 1. the efficient and rapid installation of the gear shaft and the shell can be realized, the installation efficiency is greatly improved, and the labor intensity is reduced; 2. the high-precision positioning of the shell is realized through the ratchet wheel and pawl structure, the friction plate and the positioning plate; 3. compact structure, high space utilization rate, convenient maintenance and low cost.

The present invention will be described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural view of a mounting device for a gear shaft in a counter according to the present invention;

FIG. 2 is another schematic structural view of the mounting device for the gear shaft of the counter according to the present invention;

FIG. 3 is a schematic structural view of a housing positioning assembly of the mounting device for a gear shaft of the counter according to the present invention;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 5 is a schematic structural view of a gear shaft mounting assembly and a gear shaft conveying assembly in the device for mounting a gear shaft in a counter according to the present invention;

FIG. 6 is a schematic structural view of a gear shaft mounting assembly and a gear shaft conveying assembly in the device for mounting a gear shaft in a counter according to the present invention;

fig. 7 is a schematic structural view of the gear shaft and the housing after the installation is completed.

In the drawings: the device comprises a turntable 1, a shell limiting block 2, a pushing cylinder 3, a vertical shaft 4, a base 5, a ratchet wheel 6, a rotary driving cylinder 7, a mounting seat 8, a friction plate 9, a tension spring 10, a positioning cylinder 11, a positioning plate 12, a pawl 13, a gear shaft limiting block 14, a positioning plate 15, a conveying motor 16, a conveying wheel 17, a gear shaft shifting block 18, a shifting cylinder 19, a friction sleeve 20, a gear shaft A, a shell B and a gear shaft conveying channel C.

Detailed Description

Referring to fig. 1, 2 and 7, the present invention provides a mounting device for a gear shaft in a counter, which is used for mounting a gear shaft a in a hole of a housing B, and comprises a housing positioning component and a gear shaft mounting component.

Referring to fig. 1-4, the housing positioning assembly includes a turntable 1, housing stoppers 2 uniformly arranged along the circumference of the turntable 1, and a rotation driving assembly for driving the turntable 1. A vertical shaft 4 is arranged on a base 5, and the turntable 1 is rotatably limited on the base 5 through the vertical shaft 4 and a matched bearing. The limiting cavity in the shell limiting block 2 is matched with the appearance of the shell B, and the shell B can be stably limited. The shell B can be installed in the shell limiting block 2 in a manual mode or in a mechanical mode. The shell B with the installed gear shaft A can be manually taken out of the shell limiting block 2 or mechanically taken out.

The rotary driving assembly comprises a ratchet wheel 6 fixed below the turntable 1, a pawl 13 matched with the ratchet wheel 6 and a rotary driving cylinder 7 for driving the pawl to move. Wherein, the rotary driving cylinder 7 is arranged on a mounting seat 8 fixed on the base 5.

The ratchet wheel and pawl structure has one-way direction, and needs to be limited in the other direction so as to accurately position the position of the shell limiting block 2 when the gear shaft A is installed, a friction sleeve 20 is fixed below the ratchet wheel 6, a friction plate 9 matched with the friction sleeve 20 is arranged on the base 5, and a tension spring 10 is arranged between the friction plate 9 and the installation seat 8. The friction plate 9 is hinged to the base 5 and its ends act on the friction sleeve 20 by means of the tension spring 10 so that friction forces are always present against the turntable 1, the arrangement being such that the ratchet-pawl arrangement is held tightly together at any time on completion of the indexing movement.

In order to realize high-precision positioning, a positioning cylinder 11 is arranged on the base 5, and a positioning plate 12 matched with a positioning groove in the shell limiting block 2 is arranged at the driving end of the positioning cylinder 11. The positioning cylinder 11 is in a contracted state when the turntable 1 rotates, and the positioning cylinder 11 extends out when the gear shaft A is ready to be installed, so that the positioning plate 12 moves upwards to extend into the positioning groove in the shell limiting block 2 to realize fine positioning. The top of the positioning plate 12 and the positioning slots are preferably trapezoidal in shape. Furthermore, a pressure spring and a matched guide rod can be arranged between the driving end of the positioning cylinder 11 and the shell limiting block 2 to realize the buffering during the positioning.

Referring to fig. 1, 2, 5 and 6, the gear shaft mounting assembly includes a gear shaft stopper 14 for supporting the gear shaft a and a push cylinder 3 for driving the gear shaft stopper 14 to move toward the designated housing stopper 2 and mounting the gear shaft a within the gear shaft stopper 14 into a housing B within the housing stopper 2. A guide component (such as a slide rail and a slide block) is arranged between the gear shaft limiting block 14 and the base 5 to realize the stable movement. The gear shaft limiting block 14 is provided with a groove for bearing a gear shaft A, and one end of the gear shaft A is exposed out of the end face of the limiting block after being placed in the groove so as to be mounted in a mounting hole in the bottom of the shell B. The width of the gear shaft stopper 14 also matches the corresponding groove width in the housing B.

A matched gear shaft conveying assembly is arranged on the base 5, and the gear shaft conveying assembly comprises a positioning plate 15 with a gear shaft conveying channel, a conveying motor 16 positioned above the gear shaft conveying channel, a conveying wheel 17 fixed on an output shaft of the conveying motor 16, a gear shaft shifting block 18 butted with the conveying tail end of the gear shaft conveying channel, and a shifting cylinder 19 driving the gear shaft shifting block 18 to transversely move so that a gear shaft A positioned in the gear shaft shifting block 18 is placed in a gear shaft limiting block 14. The feeding end of the gear shaft conveying channel in the positioning plate 15 is communicated with the discharging end of the matched feeding equipment. The middle of the gear shaft conveying channel of the positioning plate 15 is provided with an opening for the conveying wheel 17 to contact with the gear shaft A in the channel to drive the gear shaft A to move along the channel. The gear shaft stopper 14 is used for receiving a gear shaft A from the end of the channel, the lower end surface of the gear shaft stopper 14 is provided with a groove matched with the gear shaft A, the gear shaft stopper 14 drives the gear shaft A to transversely move along the plane outside the channel in the positioning plate 15 under the action of the displacement cylinder 19, and the gear shaft A falls into the groove of the gear shaft stopper 14 when the gear shaft A moves into the groove.

The novel device is used as follows, firstly the gear shaft A enters the gear shaft conveying channel of the positioning plate 15 through the feeder, and the gear shaft A is moved to the groove of the gear shaft displacement block 18 under the driving of the conveying motor 16. The shift cylinder 19 drives the gear shaft shift block 18 so that the gear shaft a in its groove moves toward the gear shaft stopper 14 and falls into the groove therein.

Meanwhile, the turntable 1 is rotated by the rotation of the rotation driving cylinder 7 through the ratchet and pawl structure to rotate the housing stopper 2 having the housing B, to which the gear shaft a is not yet mounted, to the side of the gear shaft stopper 14. Then the positioning cylinder 11 drives the positioning plate 12 to move upwards to match with the positioning groove in the housing limiting block 2, so as to complete the fine positioning of the housing limiting block. Then the pushing cylinder 3 drives the gear shaft stopper 14 to move and installs the gear shaft a in the gear shaft stopper 14 into the hole of the case B in the case stopper 2.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. A mounting device of gear shaft in counter for install gear shaft (A) on casing (B), including base (5) and set up casing locating component and gear shaft installation component on base (5), its characterized in that:

the shell positioning assembly comprises a turntable (1), a plurality of shell limiting blocks (2) which are uniformly arranged along the circumferential direction of the turntable (1) and used for limiting the shell (B), and a rotary driving assembly for driving the turntable (1) to rotate;

the gear shaft mounting assembly comprises a gear shaft limiting block (14) used for bearing a gear shaft (A) and a pushing cylinder (3) used for driving the gear shaft limiting block (14) to move towards an appointed shell limiting block (2) and mounting the gear shaft (A) in the gear shaft limiting block (14) into a shell (B) in the shell limiting block (2).

2. The mounting device for a gear shaft in a counter according to claim 1, wherein: the rotary table (1) is limited on a base (5) in a rotating mode through a vertical shaft (4) and a matched bearing, the rotary driving assembly comprises a ratchet wheel (6) fixed below the rotary table (1), a pawl (13) matched with the ratchet wheel (6) to drive the ratchet wheel (6) to rotate and a rotary driving cylinder (7) driving the pawl (13) to move, and the rotary driving cylinder (7) is arranged on a mounting seat (8) fixed above the base (5).

3. The mounting device for a gear shaft in a counter according to claim 2, wherein: a friction sleeve (20) is fixed below the ratchet wheel (6), a friction plate (9) matched with the friction sleeve (20) is arranged on the base (5), and a tension spring (10) is arranged between the friction plate (9) and the mounting seat (8).

4. The mounting device for a gear shaft in a counter according to claim 2, wherein: a positioning cylinder (11) is arranged on the base (5), and a positioning plate (12) matched with a positioning groove in the shell limiting block (2) is arranged at the driving end of the positioning cylinder (11).

5. The mounting device for a gear shaft in a counter according to any one of claims 1 to 4, wherein: the base (5) is provided with a gear shaft conveying assembly, and the gear shaft conveying assembly comprises a positioning plate (15) with a gear shaft conveying channel, a conveying motor (16) positioned above the gear shaft conveying channel, a conveying wheel (17) fixed on an output shaft of the conveying motor (16), a gear shaft shifting block (18) butted with the conveying tail end of the gear shaft conveying channel, and a shifting cylinder (19) driving the gear shaft shifting block (18) to transversely move so that a gear shaft (A) positioned in the gear shaft shifting block (18) is placed in the gear shaft limiting block (14).