TWM480599U - Assembling positioning structure of motor of air compressor - Google Patents

Description

Combined positioning structure of motor of air compressor

The present invention is a combined positioning structure of a motor of an air compressor, and particularly refers to a practical technique that facilitates assembly of the motor and can be stably fixed on the substrate.

Referring to Figures 8 to 12, there is shown a conventional air compressor comprising a substrate 11, a cylinder 12 coupled to the substrate, a motor 13 assembled to the substrate, and a motor A piston body 14 that is driven to reciprocate within the cylinder 12. The piston body 14 is reciprocated in the cylinder 12 by the motor 13 to complete the suction, compression, and discharge of pressurized gas.

In general, the motor 13 of the conventional air compressor drives the piston body 14 to reciprocate by a gear mechanism and a crank mechanism. The gear mechanism includes a pinion gear 151 (refer to FIG. 9) mounted on the inner shaft 131 of the inner bearing seat 130 of the front end of the motor 13, and a large gear 152 meshing with the pinion gear 151. The pinion gear 151 is a base plate. The rear side of the 11 is extended toward the front side through the first positioning hole 111 provided on the substrate 11 (refer to the eighth figure), and the inner bearing seat 130 of the front end of the motor 13 is just received in the first positioning hole 111, the inner bearing The outer diameter L2 of the seat 130 is equal to the diameter of the first positioning hole 111, and the diameter of the tip circle L1 of the pinion 151 is smaller than the outer diameter L2 of the inner bearing housing 130 (as shown in the tenth figure), so that the pinion 151 can be worn smoothly. The first positioning hole 111 is extended, and the crank mechanism includes a crank body 16, a shaft 161 and an eccentric pin 162. One end of the shaft 161 passes through the large gear 152 and is mounted on the second positioning hole 112 of the substrate 11. One end of the eccentric pin 162 is pivotally disposed at the end 141 of the piston body 14. Since the eccentric pin 162 is eccentric with respect to the shaft 161, after the motor 13 is operated, the pinion 151 smoothly and stably moves the large gear 152, which is small. The gear 151 has a certain size to prevent the gear mechanism from being engaged when the gear mechanism is meshed. Upon wear or break, the piston body 14 reciprocates within the cylinder 12.

However, the motor 13 of the conventional air compressor has a certain size in order to maintain a certain driving horsepower for smooth driving, so that the space occupied by the storage is large. However, due to the advancement of technology and the in-depth study by the creators, a motor that can maintain the original driving horsepower and reduce the size is developed, so that the space occupied by the storage is reduced, and the pinion can maintain the original size to prevent the gear. Too small to avoid wear or breakage of the teeth when the gear mechanism is engaged.

In view of this, the creator is engaged in design and has created this creation. Accordingly, the main purpose of the present invention is to provide a combined positioning structure of a motor for assembling an air compressor that can be stably assembled on a substrate, thereby improving the disadvantages of the conventional air compressor and thereby reducing air compression. The storage space of the machine is occupied.

A combined positioning structure of a motor for an air compressor constructed according to an embodiment of the present invention includes a substrate, a cylinder coupled to the substrate, a piston body reciprocable in the cylinder, and a substrate assembled thereon a motor on the mandrel of the inner end of the motor; a pinion gear is assembled on the mandrel of the inner end of the motor, and the diameter of the pinion of the pinion gear is larger than the outer diameter of the inner bearing seat, and the pinion gear is connected with a large gear to drive the piston body Reciprocating in the cylinder, the substrate has a first positioning hole and a second positioning hole, and the hole wall of the first positioning hole is convexly provided with a plurality of spaced peaks and spaced teeth There are cogging grooves between the peaks, and the diameter of the cogging circle formed by the plurality of bottom walls of the cogging is greater than or equal to the diameter of the tip circle of the pinion, so that the pinion can smoothly penetrate the first positioning hole, and the front end of the motor The outer diameter of the inner bearing housing is slightly smaller than or equal to the diameter of the tooth peak of the plurality of peaks in the first positioning hole, which allows the inner bearing seat to closely fit the tooth peak dome of the first positioning hole Wall, let the motor drive the piston body in the cylinder The movement is not only smooth, and thus can increase the service life of the air compressor person, and at the same time so that the storage space narrowing.

(11) ‧‧‧Substrate
(111)‧‧‧First positioning hole
(112)‧‧‧Second positioning hole
(12) ‧‧ ‧ cylinder
(13)‧‧‧Motor
(130) ‧‧‧ inner bearing housing
(131)‧‧‧ mandrel
(14)‧‧‧ piston body
(141) ‧ ‧ end
(151)‧‧‧小小齿轮
(152) ‧‧‧Gears
(16)‧‧‧ crank body
(161)‧‧‧ shaft
(162) ‧ ‧ eccentric pin
(2) ‧‧‧Air compressor
(3) ‧‧‧Substrate
(31)‧‧‧First positioning hole
(311)‧‧‧ tooth peak
(312)‧‧‧ cogging
(32)‧‧‧Second positioning hole
(33)‧‧‧Positioning holes
(34) ‧ ‧ ‧ pin
(4) ‧‧‧ cylinder
(41)‧‧‧ gas storage seat
(411) (412) (413) ‧ ‧ Manifold
(42) ‧‧‧Bottom
(43) ‧ ‧ openings
(5) ‧‧‧ piston body
(51) ‧ ‧ end
(52)‧‧‧Piston rod
(61)‧‧‧小小齿轮
(62) ‧‧‧Gears
(63)‧‧‧ crank body
(631)‧‧‧ shaft
(632)‧‧‧Eccentric pin
(7)‧‧‧Motor
(70) ‧‧‧ inner bearing housing
(71)‧‧‧ mandrel
(72) (73) ‧‧‧Positioning holes
(8)‧‧‧ bolts

The first picture: is a group diagram of the creation of the air compressor.
The second picture: an exploded view of the air compressor of the present creation.
The third picture is a perspective view of the substrate of the creation.
The fourth picture: is the plan view of the first positioning hole of the creation.
Fig. 5 is a perspective view of the creation of the pinion gear at the front end of the motor.
Figure 6: The plan of the fourth figure.
Figure 7 is a cross-sectional plan view of the motor and the substrate assembled with the pinion.
Figure 8: A perspective view of a conventional substrate.
Ninth view: A perspective view of a conventional pinion that is placed at the front end of the motor.
Figure 10: The plan of the eighth figure.
Figure 11: A set of diagrams of a conventional air compressor.
Twelfth Figure: A cross-sectional plan view of a motor assembled with a pinion and a substrate.

Please refer to the first and second figures, which show a combined positioning structure of the motor of the present air compressor 2, the air compressor 2 includes a substrate 3, a cylinder 4 coupled to the substrate 3, and assembled on the substrate 3. A motor 7 and a piston body 5 that can be reciprocated within the cylinder 4 by the motor 7.

Referring to the third figure, the substrate 3 has a first positioning hole 31 and a second positioning hole 32. The positioning holes 33 are provided on the left and right sides of the first positioning hole 31, and the substrate 3 is behind. A pin 34 is protruded from the upper and lower sides of the first positioning hole 31 (refer to the second figure at the same time), the first positioning hole 31 can fix the motor 7, and the spindle 71 of the inner bearing seat 70 of the front end of the motor 7 can be extended. The first positioning hole 31 is out (refer to the seventh figure), and the inner bearing seat 70 is received in the first positioning hole 31.

The cylinder 4 can be integrated on the substrate 3 by using a connection technology (refer to the third figure), and a gas storage seat 41 and a manifold 411, 412, 413 for outputting gas are connected to the cylinder 4, and The cylinder 4 has a lower end 42 having an opening 43.

The piston head at the front end of the piston body 5 extends from the opening 43 into the cylinder 4, and the piston rod 52 of the end 51 of the piston body 5 extends out of the opening 43 of the cylinder 4, as shown in the first figure.

The transmission mechanism includes a pinion gear 61, a large gear 62 and a crank body 63. The crank body 63 is provided with a shaft 631 and an eccentric pin 632.

The inner bearing housing 70 of the front end of the motor 7 has a spindle 71 (refer to FIGS. 5 and 6). The spindle 71 is fixed with a pinion 61 which can pass through the first positioning hole 31 on the substrate 3. The positioning hole 33 on the substrate 3 is inserted by the bolt 8 and locked on the positioning hole 72 provided at the front end of the motor 7, and is placed in the positioning hole 73 of the motor 7 by the pin 34 behind the substrate 3 to make the motor 7 It is firmly bonded to the substrate 3 as shown in the second figure. a large gear 62 is coupled to a crank body 63. One end of the shaft 631 of the crank body 63 passes through the large gear 62 and is pivotally connected to the second positioning hole 32, and one end of the eccentric pin 632 The end portion 51 of the piston body 5 is pivotally connected. At this time, the pinion gear 61 is engaged with the large gear 62. When the motor 7 is operated, the pinion gear 61 drives the large gear 62 so that the piston body 5 reciprocates within the cylinder 4.

The present invention is characterized by a bearing housing 70 at the front end of the motor 7 and a pinion 61 fixed on a spindle 71 extending from the center of the inner bearing housing 70. The pinion gear diameter L1 of the pinion gear 61 is larger than the inner bearing. The seat 70 has an outer diameter L0 as shown in the sixth figure. With the third and fourth figures, the wall of the first positioning hole 31 on the substrate 3 is convexly provided with a plurality of spaced-apart peaks 311, and the spaced-apart peaks 311 are formed with a tooth groove 312 between the plurality of teeth. The groove diameter W1 of the bottom wall of the groove 312 is greater than or equal to the tip circle diameter L1 of the pinion gear 61, so that the pinion gear 61 can smoothly penetrate the first positioning hole 31, and the inner bearing seat 70 of the front end of the motor 7 The outer diameter L0 is slightly smaller than or equal to the toroidal circle diameter W0 of the plurality of tooth peaks 311 in the first positioning hole 31, which allows the inner bearing housing 70 to closely fit the teeth of the first positioning hole 31. The peak dome wall allows the motor 7 to drive the movement of the piston body 5 in the cylinder 4 not only smoothly, but also improves the service life of the air compressor 2, and at the same time reduces the occupied space during storage.

In view of the pre-existing theory, the present invention provides a combined positioning structure of a motor 7 that facilitates assembly of the motor 7 and that can be stably fixed to the substrate 3 of the air compressor 2. The motor 13 of the conventional air compressor has a certain size in order to maintain a certain driving horsepower for smooth driving, so that it takes up a large space during storage. In contrast, the inner bearing housing 70 of the front end of the motor 7 and the pinion gear 61 fixed on the mandrel 71 extending from the center of the inner bearing housing 70 have a tip diameter L1 larger than that of the inner bearing housing 70. The outer diameter L0, and the wall of the first positioning hole 31 on the substrate 3 is convexly provided with a plurality of spaced-apart tooth peaks 311, and the spaced-apart tooth peaks 311 are formed with a tooth groove 312 between the plurality of tooth grooves 312 The cog wheel diameter W1 enclosed by the wall is greater than or equal to the addendum circle diameter L1 of the pinion gear 61, so that the pinion gear 61 larger than the outer diameter of the inner bearing housing 70 can smoothly penetrate the first positioning hole 31, and the front end of the motor 7 The outer diameter L0 of the inner bearing housing 70 is slightly smaller than or equal to the toroidal circle diameter W0 of the plurality of tooth peaks 311 in the first positioning hole 31, which allows the inner bearing housing 70 to closely fit the first The tooth peak dome wall of the positioning hole 31 allows the motor 7 to drive the movement of the piston body 5 in the cylinder 4 not only smoothly, but also improves the service life of the air compressor 2, and at the same time reduces the occupied space during storage. In comparison with the two, the structure of the creation is not only different from the previous conventional structure, but also more progressive in the use efficiency, and has the industrial use value.

(2) ‧‧‧Air compressor

(3) ‧‧‧Substrate

(4) ‧‧‧ cylinder

(41)‧‧‧ gas storage seat

(411) (412) (413) ‧ ‧ Manifold

(42) ‧‧‧Bottom

(43) ‧ ‧ openings

(5) ‧‧‧ piston body

(51) ‧ ‧ end

(52)‧‧‧Piston rod

(61)‧‧‧小小齿轮

(62) ‧‧‧Gears

(63)‧‧‧ crank body

(631)‧‧‧ shaft

(632)‧‧‧Eccentric pin

(7)‧‧‧Motor

(8)‧‧‧ bolts

Claims (4)

A combined positioning structure of a motor of an air compressor, comprising:
a substrate having a first positioning hole and a second positioning hole;
a cylinder, which is coupled to the substrate, the cylinder has a lower end, the lower end of which has an opening, and the upper end is connected to a gas storage seat;
a piston body, the front end of the piston head extends into the cylinder, and the piston rod end of the piston body extends out of the opening of the lower end of the cylinder;
a motor having a mandrel, the motor is assembled on the substrate, and the mandrel is extended beyond the first positioning hole;
a transmission mechanism having a pinion gear, a large gear and a crank body, the crank body is provided with a shaft rod and an eccentric pin, and the crank body can be coupled to the large gear, and one end of the shaft of the crank body passes through The large gear is pivotally connected to the second positioning hole, and one end of the eccentric pin is pivotally connected to the end of the piston body. At this time, the pinion gear meshes with the large gear, and is characterized by: inside the front end of the motor The mandrel provided on the bearing seat is fixed with the aforementioned pinion gear, and the pinion circle diameter of the pinion gear is larger than the outer diameter of the inner bearing seat. The combined positioning structure of the motor of the air compressor according to the first aspect of the invention, wherein the wall of the first positioning hole on the substrate is convexly provided with a plurality of phase-toothed peaks, and between the spaced peaks The cogging groove is formed, and the diameter of the cogging circle formed by the plurality of the bottom walls of the cogging is greater than or equal to the diameter of the tip circle of the pinion, so that the pinion can smoothly penetrate the first positioning hole. The combined positioning structure of the motor of the air compressor according to the second aspect of the invention, wherein the outer diameter of the inner bearing seat provided at the front end of the motor is slightly smaller than or equal to the plurality of peak top walls in the first positioning hole. The enclosed toroidal circle diameter allows the inner bearing housing to closely fit the toroidal dome wall of the first positioning hole. The combination positioning structure of the motor of the air compressor according to claim 3, wherein the positioning holes are provided on the left and right sides of the first positioning hole of the substrate, and the first positioning holes behind the substrate are up and down. A pin is protruded on both sides, and a plurality of bolts are inserted through the positioning holes on the substrate and locked on the positioning holes provided at the front end of the motor, and are placed in the positioning holes of the motor by the pins, so that the motor is firmly combined On the substrate.