CN209823586U - Gear rack transmission device, panel translation structure and gas stove - Google Patents

Abstract

The utility model provides a rack and pinion transmission, panel translation structure, gas-cooker, a rack and pinion transmission includes: the rack is provided with a sliding chute; the movable support is provided with a first support part and a second support part, wherein the first support part partially extends into the sliding groove, and the second support part is arranged at an angle with the first support part; the balls are movably arranged on the first supporting part, and at least part of the balls is in contact with one groove wall of the sliding groove; and the gear is arranged on the second supporting part and meshed with the rack, and the gear drives the movable support to reciprocate on the rack under the action of external force. This implementation is novel has solved the gear rack transmission among the prior art not compact structure, the big problem of noise.

Description

Gear rack transmission device, panel translation structure and gas stove

Technical Field

The utility model relates to the technical field of household appliances, concretely relates to rack and pinion transmission, panel translation structure, gas-cooker.

Background

The gear transmission is one of the main forms in mechanical transmission, and has the advantages of large speed ratio range, wide power range, compact and reliable structure and the like, so that the gear transmission is widely applied to various mechanical equipment and instruments, becomes transmission with the largest proportion in the existing mechanical products, and has wide application prospect.

The existing rack and pinion linkage mechanism generally comprises the following structures: gear, rack and track groove, gear and rack adaptation meshing, rack slidable mounting is in the track inslot, and gear fixed connection is on motor shaft. The motor rotates to drive the gear to rotate, and the rack meshed with the gear moves in the track groove under the driving of the gear.

In the structure, on one hand, the contact area between the rack and the track groove is large, and the rack and the track groove have larger friction resistance when moving, so that the load of the motor is increased, and meanwhile, noise is easy to generate; on the other hand, the rack moves in the track groove, and the rack has a certain length and a movement stroke, so that a larger structural space is needed, and the problem of an incompact structure is easily caused.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the problem that the noise is big, the structure is not compact among the rack and pinion link gear among the prior art, the utility model provides a rack and pinion transmission, panel translation structure, gas-cooker.

In order to solve the above problem, the utility model provides a rack and pinion transmission includes: the rack is provided with a sliding chute; the movable support is provided with a first support part and a second support part, wherein the first support part partially extends into the sliding groove, and the second support part is arranged at an angle with the first support part; the balls are movably arranged on the first supporting part, and at least part of the balls is in contact with one groove wall of the sliding groove; and the gear is arranged on the second supporting part and meshed with the rack, and the gear drives the movable support to reciprocate on the rack under the action of external force.

Furthermore, the part of the first supporting part extending into the sliding groove is not in contact with the sliding groove.

Furthermore, a plurality of accommodating grooves are formed in the parts, extending into the sliding grooves, of the movable supports, and the balls are rotatably arranged in the accommodating grooves.

Further, the accommodating groove comprises a guiding-in part formed on the second supporting part and a clamping part formed on the first supporting part.

Further, the leading-in part is communicated with the clamping part, and at least one ball penetrates through the leading-in part and enters the clamping part.

Further, the minimum groove width of the clamping part is smaller than the ball diameter of the ball.

The utility model provides a rack and pinion transmission still includes: the baffle is detachably arranged on the leading-in part and used for blocking the leading-in part so as to limit the balls from sliding out of the leading-in part.

Furthermore, a ball ejector rod is formed on the baffle plate, penetrates through the leading-in portion and extends into the clamping portion, and is used for limiting displacement of the ball in the leading-in direction.

The utility model provides a rack and pinion transmission still includes: and the motor is arranged on the second supporting part, and the gear is fixed on a motor shaft of the motor.

A panel translation structure comprises any one of the gear rack transmission devices, wherein the rack of the gear rack transmission device is fixedly arranged; and the connecting plate is connected to the movable support and is provided with a panel.

The utility model provides a panel translation structure still includes: the sliding rail assembly is arranged side by side with the rack and is provided with a sliding rail and a sliding block movably arranged on the sliding rail, and one end of the connecting plate is connected with the sliding block.

A gas cooker comprising any one of the above-described gear and rack transmission devices, or

Any one of the above panel translation structures.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a rack and pinion transmission includes: the rack is provided with a sliding chute; the movable support is provided with a first support part and a second support part, wherein the first support part partially extends into the sliding groove, and the second support part is arranged at an angle with the first support part; the balls are movably arranged on the first supporting part, and at least part of the balls is in contact with one groove wall of the sliding groove; and the gear is arranged on the second supporting part and meshed with the rack, and the gear drives the movable support to reciprocate on the rack under the action of external force.

In the application, the gear is reciprocating motion on the rack, the maximum stroke of the gear is the length of the rack, the problem that the structure of a product is not compact due to the fact that the gear drives the rack to move in the prior art is solved, the stroke which is required to reach the same rack length needs to reserve a motion space of one rack length at least, the gear moves on the rack through a movable support, balls are arranged on a first supporting part of the movable support, the position of the movable support in a rack sliding groove is moved through rolling of the balls, in essence, sliding friction in the prior art is replaced by rolling friction in the application, the friction resistance of the movable support in the sliding groove is reduced, and the contact area of the movable support with the sliding groove is reduced, and the noise is reduced.

2. The utility model provides an among the rack and pinion transmission first supporting part stretches into part in the spout with the spout contactless has avoided contact friction, and then further noise reduction's production to and the frictional resistance that contact friction probably produced.

3. The utility model provides an among the rack and pinion transmission movable support deepens part in the spout is provided with a plurality of storage tanks, the ball rotationally sets up in the storage tank, the setting of storage tank can make and separate each other between the ball, reduces the collision when rolling, further noise abatement's production.

4. The utility model provides an among the rack and pinion transmission leading-in portion with joint portion is linked together, at least one the ball passes leading-in portion gets into joint portion, the ball is set up in the spout of rack, and it is inconvenient to tear open and trade, and setting up of leading-in portion makes the operator can push the ball in joint portion through leading-in portion, has simplified the installation of ball.

5. The utility model provides an among the rack and pinion transmission the minimum groove width of joint portion is less than the ball footpath of ball, when rack and pinion telecontrol equipment assembles, gear and rack toothing produce decurrent pressure to the rack, this pressure conduction is used in on the ball, and then make ball butt spout be close to on the spout face of gear, above-mentioned design can make the ball accepted in the storage tank simultaneously, the pressure reaction that the ball received is on the movable support, the reaction that the gear received is used in on the movable support equally, the movable support atress is balanced, thereby realize the movable support, the assembly cooperation between gear and rack.

6. The utility model provides a rack and pinion transmission still includes: the baffle, baffle detachably sets up on the introduction part for the shutoff the introduction part is in order to restrict the ball is followed introduction part department roll-off, the setting of baffle has guaranteed that the ball can not break away from the storage tank at the roll in-process, has strengthened the stability and the reliability of structure.

7. The utility model provides an among the rack and pinion transmission the shaping has ball ejector pin on the baffle, ball ejector pin passes leading-in portion stretches into in the joint portion, be used for the restriction the ball is at leading-in ascending displacement of side, and the accommodation space of joint portion is big than the ball generally speaking, for preventing to take place the problem of off tracking at the ball roll in-process, uses ball ejector pin to reduce the activity space of ball, prevents the off tracking.

8. The panel translation structure in the utility model comprises any one of the gear rack transmission devices, and the rack of the gear rack transmission device is fixed; the gear and rack transmission device reduces the driving force required by the movement of the panel, and simultaneously ensures that the panel moves more smoothly and the noise is less.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a rack and pinion transmission structure provided in embodiment 1 of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1A;

FIG. 3 is an exploded view of FIG. 1;

fig. 4 is a schematic structural view of a movable support provided in embodiment 1 of the present invention;

fig. 5 is a schematic mechanism diagram of a baffle provided in embodiment 1 of the present invention;

fig. 6 is a schematic view of a panel translation structure provided in embodiment 1 of the present invention.

Description of reference numerals:

1-a rack; 11-a chute;

2-a movable support; 21-a first support part; 22-a second support; 23-a receiving groove; 231-an introduction part; 232-clamping part;

3-rolling balls;

4-a gear;

5-a baffle plate; 51-ball ejector pin;

6, a motor;

7-a connecting plate;

8-a slide rail assembly; 81-sliding rails; 82-sliding block.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

As shown in fig. 1 to 5, a rack and pinion transmission provided for the present embodiment includes: the rack 1 is provided with a chute 11; a movable bracket 2 having a first support 21 partially extended into the chute 11 and a second support 22 disposed at an angle to the first support 21; a plurality of balls 3 movably arranged on the first supporting part 21, and at least part of the balls is contacted with one groove wall of the sliding groove 11; and the gear 4 is arranged on the second supporting part 22 and is meshed with the rack 1, and the gear 4 drives the movable support 2 to do reciprocating motion on the rack 1 under the action of external force. In this embodiment, in the present application, the gear 4 makes a reciprocating motion on the rack 1, the maximum stroke of the gear 4 is the length of the rack 1, the problem that the gear drives the rack to move in the prior art is solved, a movement space of one rack length needs to be reserved at least for the stroke of the same rack length, and the product structure is not compact is caused, similarly, the gear 4 moves on the rack through the movable support 2, the ball 3 is arranged on the first supporting part of the movable support 2, the position movement in the rack sliding groove 11 is realized through the rolling of the ball 3, the sliding friction in the prior art is substantially replaced by the rolling friction, the friction resistance of the movable support 2 moving in the sliding groove 11 and the contact area with the sliding groove 11 are reduced, and further, the generation of noise is reduced.

The rack 1 in this embodiment is in a regular quadrangular prism shape, is made of metal copper, has high structural strength, and may be made of 45 steel or the like in other embodiments.

In this embodiment, the teeth are formed on one of the faces, and the slot 11 is formed on the face adjacent to the teeth, which facilitates the mounting of the mobile support 2, and in other embodiments the slot 11 may also be formed on the opposite face.

As shown in fig. 1, the movable bracket 2 in this embodiment is a sheet metal structure formed by bending, and the bending angle between the first supporting portion 21 and the second supporting portion 22 is 90 degrees, which is a simple structure, and in other embodiments, the connecting angle between the two portions may be 60 degrees, 45 degrees, and the like, which are not listed here.

The part of the first supporting part 21 extending into the sliding chute 11 in the embodiment is not in contact with the sliding chute 11, and the first supporting part 21 is arranged between the upper and lower chute walls of the sliding chute 11 in the embodiment, so that contact friction is avoided, and further noise is further reduced, and friction resistance possibly generated by the contact friction is reduced.

Further, the part of the movable bracket 2 extending into the sliding groove 11 is provided with a plurality of accommodating grooves 23, and the balls 3 are rotatably disposed in the accommodating grooves 23, as shown in fig. 4, the number of the accommodating grooves 23 in this embodiment is three, wherein the end of the part of the movable bracket 2 extending into the sliding groove 11 is not in contact with the bottom of the accommodating groove 23, so as to avoid sliding friction, and the balls 3 are rotatably disposed in the accommodating grooves 23, and the accommodating grooves 23 are disposed to separate the balls 3 from each other, so as to reduce collision during rolling and further reduce noise.

Further, the receiving groove 23 includes a guiding portion 231 formed on the second supporting portion 22 and a clamping portion 232 formed on the first supporting portion 21, the guiding portion 231 is communicated with the clamping portion 232, at least one of the balls 3 passes through the guiding portion 231 and enters the clamping portion 232, as shown in fig. 3, one ball 3 is respectively disposed on the clamping portion 232 in this embodiment, and one ball 3 is disposed in each receiving groove 23 to prevent the balls 3 from contacting, colliding and rubbing with each other and generating noise when a plurality of balls 3 are disposed in one receiving groove 23.

Of course, as a preferred embodiment, a single ball 3 placing recess may be formed separately on the receiving groove 23, and the distance between the centers of the adjacent recesses is larger than the ball diameter of the ball 3, so that a plurality of balls 3 can be placed in the same receiving groove 23, and the balls 3 are prevented from colliding with each other.

The minimum groove width of clamping part 232 is less than the sphere diameter of ball 3 in this embodiment, when the rack-and-pinion movement device is assembled, gear 4 meshes with rack 1, produce downward pressure to rack 1, this pressure conduction acts on ball 3, and then make ball 3 butt spout be close to on the spout face of gear 4, and above-mentioned design can make ball 3 be accepted in storage tank 23 simultaneously, the pressure reaction that ball 3 received is on movable support 2, the reaction that gear 4 received is also used on movable support 2, movable support 2 atress is balanced, thereby realize movable support 2, the assembly cooperation between gear 4 and rack 1.

The embodiment further comprises the following steps: the baffle 5 is detachably arranged on the leading-in part 231 and used for blocking the leading-in part 231 to limit the ball 3 to slide out of the leading-in part 231, so that the ball 3 is prevented from being separated from the accommodating groove 23 in the rolling process, and the stability and the reliability of the structure are enhanced.

Further, a ball ejector rod 51 is formed on the baffle 5, the ball ejector rod 51 penetrates through the leading-in portion 231 and extends into the clamping portion 232 to limit displacement of the ball 3 in the leading-in direction, generally, an accommodating space of the clamping portion 232 is larger than that of the ball 3, and in order to prevent the problem that the ball 3 deviates in the rolling process, the moving space of the ball 3 is reduced by using the ball ejector rod, and the deviation is prevented.

The ball carrier rod 51 in this embodiment is a cylindrical rod, but in other embodiments, a cylindrical rod with other shape may be used, a gap, which is about 0.5mm to 1mm, may exist between the top end of the cylindrical rod and the ball 3, and the existence of the gap can prevent the ball carrier rod 51 from directly contacting the ball to press the ball 3, which may affect the normal rotation of the ball 3,

the embodiment further comprises the following steps: and a motor 6 disposed on the second supporting portion 22, and a gear 4 fixed on a motor shaft of the motor 6. The second supporting portion 22 is provided with a motor mounting hole, a motor shaft penetrates through the motor mounting hole, and the motor is locked on the second supporting portion 22 through a screw. The gear 4 is provided with a fastening screw, and the gear 4 is screwed on the motor shaft through the fastening screw, but in other embodiments, the gear 4 can also press the gear 4 on the motor shaft through an interference fit relation with the motor shaft.

Example 2

As shown in fig. 6, the panel translation structure provided for this embodiment includes: in the gear and rack transmission device of embodiment 1, the rack 1 itself of the gear and rack transmission device is fixedly arranged, in this embodiment, the rack 1 is fixed on an external frame, and the connecting plate 7 is connected to the movable support 2 and provided with a panel thereon.

The embodiment further comprises the following steps: the sliding rail assembly 8 is arranged side by side with the rack 1 and is provided with a sliding rail 81 and a sliding block 82 movably arranged on the sliding rail 81, one end of the connecting plate 7 is connected with the sliding block 82, the panel can move more smoothly due to the arrangement of the sliding rail assembly 8, a mounting hole is formed in the connecting plate 7 in the embodiment, and the panel is locked on the connecting plate 7 through the mounting hole.

Example 3

The present embodiment provides a gas stove, which includes the gear and rack transmission device in embodiment 1 or the panel translation structure in embodiment 2, and has all the technical advantages thereof, which are not described in detail herein.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims (12)

1. A rack and pinion gear comprising:

the rack (1) is provided with a chute (11);

a movable bracket (2) which is provided with a first supporting part (21) partially extending into the sliding groove (11) and a second supporting part (22) arranged at an angle with the first supporting part (21);

the balls (3) are movably arranged on the first supporting part (21) and at least partially contact with one groove wall of the sliding groove (11);

the gear (4) is arranged on the second supporting portion (22) and meshed with the rack (1), and the gear (4) is driven by external force to drive the movable support (2) to reciprocate on the rack (1).

2. A rack and pinion transmission as claimed in claim 1, characterised in that the portion of the first support (21) projecting into the chute (11) is not in contact with the chute (11).

3. A rack and pinion transmission as claimed in claim 2, characterised in that the parts of the movable carriage (2) extending into the chute (11) are provided with a plurality of receiving grooves (23) side by side, the balls (3) being rotatably arranged in the receiving grooves (23).

4. A rack and pinion transmission as claimed in claim 3 wherein the receiving slot (23) comprises a lead-in portion (231) formed on the second support portion (22) and a snap-in portion (232) formed on the first support portion (21).

5. A rack and pinion transmission as claimed in claim 4, characterised in that said lead-in portion (231) communicates with said snap-in portion (232), at least one said ball (3) passing through said lead-in portion (231) into said snap-in portion (232).

6. A rack and pinion transmission as claimed in claim 5, characterised in that the minimum groove width of the snap-in portion (232) is smaller than the ball diameter of the ball (3).

7. The rack and pinion drive of claim 6, further comprising: the baffle plate (5) is detachably arranged on the introducing part (231) and used for blocking the introducing part (231) to limit the balls (3) from sliding out of the introducing part (231).

8. A rack and pinion transmission as claimed in claim 7, characterised in that said blocking plate (5) is formed with a ball plunger (51), said ball plunger (51) extending through said lead-in portion (231) into said snap-in portion (232) for limiting displacement of said balls (3) in the lead-in direction.

9. A rack and pinion drive as claimed in any one of claims 1 to 8, further comprising:

and the motor (6) is arranged on the second supporting part (22), and the gear (4) is fixed on a motor shaft of the motor (6).

10. A panel translation structure, comprising:

a rack and pinion drive as claimed in any one of claims 1 to 9, the rack (1) of the rack and pinion drive being fixedly arranged on itself;

and the connecting plate (7) is connected to the movable support (2) and is provided with a panel.

11. The panel translation structure according to claim 10, further comprising:

the sliding rail assembly (8) is arranged side by side with the rack (1) and is provided with a sliding rail (81) and a sliding block (82) movably arranged on the sliding rail (81), and one end of the connecting plate (7) is connected with the sliding block (82).

12. A gas range, comprising:

a rack and pinion drive as claimed in any one of claims 1 to 9, or

The panel translation structure of any of claims 10-11.