Motor power output end cover for installing and positioning motor by using threaded hole seat

Abstract

The utility model discloses a motor power output end cover for installing and positioning a motor through a threaded hole seat, and relates to the technical field of motor installation and connection of induction cookers, gas stove cooking machines and the like. According to the utility model, the bearing chamber matched with the motor output shaft is axially arranged, the threaded hole seat is arranged above the bearing chamber, and the threaded hole seat and the motor output shaft are coaxial; internal threads are processed in an inner cavity of the threaded hole seat or external threads are processed on the outer surface of the threaded hole seat, the external threads or the internal threads at the lower end of the motor shaft sleeve and the internal threads or the external threads on the threaded hole seat are fixedly connected into a whole, the upper end of the motor shaft sleeve is connected with the connecting piece, and installation and fixation of the motor are completed. According to the utility model, the motor can be installed and positioned by using the threaded hole seat on the end cover at the power output end of the motor, the installation coaxiality of the motor shaft and the motor shaft sleeve is easily ensured, transmission faults can be reduced, the reliability is enhanced, and the motor can be conveniently and quickly installed or disassembled with a furnace or a stove.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electromagnetic oven and gas stove frying machine motor installation, more specifically, it is a motor power output end cover that installs and positions motor with a threaded hole seat, and is especially suitable for the installation connection of small speed reducer motor matched with gas stove frying machine or electromagnetic oven frying machine. BACKGROUND

[0002] The applicant submitted an invention patent application with the patent number 2021103125403 and the name "a stove that can automatically fry food, a frying machine and its matching pot" in 2021. In the technical solution of this patent (see Figure 1 ), the motor 7 needs to be connected with the motor shaft sleeve pipe 9, and then fixedly connected with the motor installation support 13 on the stove. Before the motor shaft sleeve pipe 9 is connected with the speed reducer 6 and the motor 7, the lower end of the motor shaft outer threaded sleeve pipe 9 needs to be welded with the connecting plate 15 first, and then fastened with the multiple threaded seats on the installation surface of the traditional output end cover 1' through the multiple eyelets on the connecting plate 15 and the connecting pad plate 16 below, so as to realize the connection and fixation of the motor and the motor shaft sleeve pipe 9. Because the motor is driven through the long transmission of the transmission inner sleeve pipe 11, the motor shaft 4 and the motor shaft sleeve pipe 9 need to maintain high coaxial precision, and the bolt fastening will cause deviation and misplacement. In addition, the lower end of the motor shaft sleeve pipe 9 needs to be welded with the connecting plate 15 first, which will cause welding deformation, and the quality of the welding seam 17, which will affect the perpendicularity between the two, so that the coaxiality of the motor shaft 4 and the motor shaft sleeve pipe 9 during assembly cannot be guaranteed, and eccentric wear will occur, causing the motor and the transmission components to malfunction.

[0003] Specifically, in the gas stove frying machine scheme of implementing this patent, the motor is about 200mm away from the frying pot. Because various connection transmission, size matching and other problem factors need to be considered, such as installation space capacity, part structure strength, reliability, deformation under high-temperature flame heating, service life, manufacturing process simplification of parts and pot, the margin of part size design selection is very small. For example: the inner diameter of the motor shaft sleeve pipe 9 is 9mm, and the outer diameter of the transmission inner sleeve pipe 11 sleeved on the motor shaft 4 is 8mm. The transmission inner sleeve pipe 11 rotates in the motor shaft sleeve pipe 9, and the transmission torque is transmitted for about 200mm. In the gap of not more than 0.5mm on each side, the transmission inner sleeve pipe 11 needs to be guaranteed not to rub against the motor shaft sleeve pipe 9 during rotation, and the two need to maintain high coaxial precision.

[0004] In order to solve the above technical problems, the connection form between the motor shaft 4 and the motor shaft sleeve pipe 9 needs to be improved, and a connection structure that can easily guarantee the installation coaxiality of the motor shaft and the motor shaft sleeve pipe, provide accurate positioning for motor installation, reduce transmission failure and enhance reliability is designed. SUMMARY

[0005] The motor power output end cover for mounting and positioning a motor by a threaded hole seat is an integral end cover composed of a cover plate, a bearing chamber and an inner threaded hole seat, coaxially arranged bearing chamber, shaft shoulder hole and threaded cavity are sequentially machined along the central axis of the inner threaded hole seat from bottom to top, and an inner thread is machined on the inner cavity surface of the threaded cavity.

[0006] The purpose of the utility model can be realized through the following technical measures:

[0007] The motor power output end cover for mounting and positioning a motor by a threaded hole seat is an integral end cover composed of a cover plate, a bearing chamber and an inner threaded hole seat, coaxially arranged bearing chamber, shaft shoulder hole and threaded cavity are sequentially machined along the central axis of the inner threaded hole seat from bottom to top, and an inner thread is machined on the inner cavity surface of the threaded cavity.

[0008] The inner thread in the inner threaded hole seat is matched and connected with the outer thread machined on the outer surface of the bottom end of the outer threaded sleeve pipe matched with the motor shaft.

[0009] The diameter of the shaft shoulder hole is smaller than the diameter of the threaded cavity, the diameter of the shaft shoulder hole is smaller than the diameter of the bearing chamber, and the diameter of the shaft shoulder hole is larger than the diameter of the motor shaft.

[0010] The motor power output end cover for mounting and positioning a motor by a threaded hole seat is an integral end cover composed of a cover plate, a bearing chamber and an outer threaded hole seat, coaxially arranged bearing chamber, shaft shoulder through hole are sequentially machined along the central axis of the outer threaded hole seat from bottom to top, and the outer surface of the outer threaded hole seat is a two-step cylindrical surface with a small upper end and a large lower end, and an outer thread is machined on the small diameter section of the two-step cylindrical surface.

[0011] The outer thread in the outer threaded hole seat is matched and connected with the inner thread machined on the outer surface of the bottom end of the inner threaded sleeve pipe matched with the motor shaft.

[0012] The diameter of the shaft shoulder through hole is smaller than the diameter of the bearing chamber, and the diameter of the shaft shoulder through hole is larger than the diameter of the motor shaft.

[0013] The diameter of the bearing chamber is matched with the outer diameter of the matched bearing.

[0014] The design principle of the utility model is as follows:

[0015] The utility model discloses an upgrade improvement and perfection to the application number 2021103125403, the name is "a stove, a frying machine and its matching cookware that can automatically fry" of invention patent application - mainly new design is carried out to the connecting part of motor and motor shaft sleeve tube. The utility model designs a motor power output end cover of installing and positioning motor with a threaded hole seat - its representative structure one (example one) is the integral type end cover that is formed by cover, bearing chamber and internal thread hole seat, and the bearing chamber, shaft shoulder hole, threaded cavity that are arranged coaxially are processed in succession from below to above along the central axis of internal thread hole seat, and the inner thread is processed on the inner chamber surface of threaded cavity. Its representative structure two (example two) is the integral type end cover that is formed by cover, bearing chamber and external thread hole seat, and the bearing chamber, shaft shoulder through hole that are arranged coaxially are processed in succession from below to above along the central axis of external thread hole seat, and the outer surface of external thread hole seat is two stepped cylindrical surfaces of small end at upper end and big end at lower end, and the external thread is processed on the small diameter section of two stepped cylindrical surfaces. In summary, since the bearing chamber in the hole cover (whether representative structure one or representative structure two) of the utility model is coaxially processed in the same machine tool with shaft shoulder hole, threaded cavity, internal thread or external thread, it is easy to ensure that the bearing chamber and internal thread or external thread have high machining coaxiality, and the bearing chamber is coaxial with the motor shaft after embedding the bearing, and the internal thread or external thread is also coaxial after combining with the motor shaft sleeve pipe thread, so that the installation coaxiality of the motor shaft and the motor shaft sleeve pipe can be easily ensured, accurate positioning is provided for motor installation, transmission failure can be reduced, reliability can be enhanced, cost can be reduced, and the advantages of accurate positioning, reliable transmission, low failure rate, low cost are achieved. At the same time, through the bottom end thread combination of the utility model and the motor shaft sleeve pipe, the upper end of the motor shaft sleeve pipe and the motor installation support thread on the stove, and the motor shaft and the transmission inner sleeve pipe thread combination, the motor and the frying machine can be quickly installed and fixed between them, and the advantages of compact structure, few parts, convenient assembly and disassembly, small space occupation and the like are achieved.

[0016] The utility model discloses the beneficial technical effects are as follows:

[0017] The utility model discloses easy to ensure the installation coaxiality of motor shaft and motor shaft sleeve pipe, provide accurate positioning for motor installation, can reduce transmission failure, enhance reliability, reduce cost, also convenient quick installation or disassembly between motor and frying machine, have the advantages such as accurate positioning, reliable transmission, low failure rate, compact structure, few parts, low cost, convenient assembly and disassembly, small space occupation. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the use state schematic diagram of prior art.

[0019] Figure 2 It is the structure schematic diagram of example one in the utility model.

[0020] Figure 3 is the installation state diagram of the embodiment one in the utility model.

[0021] Figure 4 is the structure schematic diagram of the embodiment two in the utility model.

[0022] Figure 5 is the installation state diagram of the embodiment two in the utility model.

[0023] Part serial number in the drawing is explained:

[0024] 1, cover plate, 1', traditional power output end cover, 2, bearing chamber, 2', bearing, 3, internal thread hole seat, 3-1, shaft shoulder hole, 3-2, thread cavity, 3', external thread hole seat, 3-1', shaft shoulder through hole, 4, motor shaft, 5, internal thread, 5', external thread, 6, speed reducer, 7, motor, 7', speed reducer hidden type integrated motor, 8, lock nut, 9, motor shaft sleeve, 9' motor shaft external thread sleeve, 9" motor shaft internal thread sleeve, 10, adjusting nut, 11, transmission inner sleeve, 12, rotation-stopping outer sleeve, 13, motor installation support on the stove, 14, gasket, 15, connecting plate, 16, connecting gasket, 17, weld. DETAILED DESCRIPTION

[0025] The utility model will be further described below with the combination of drawings and two embodiments. Embodiment one

[0026] As shown in Figure 2 , Figure 3 , the motor power output end cover of the embodiment one for installing and positioning motor is the integral end cover that is constituted by cover plate 1, bearing chamber 2 and internal thread hole seat 3, and the bearing chamber 2, shaft shoulder hole 3-1, thread cavity 3-2 of coaxial arrangement are sequentially processed along the central axis of the internal thread hole seat 3 from bottom to top.

[0027] The internal thread 5 in the internal thread hole seat 3 of the embodiment one is matched and connected with the external thread that is processed on the bottom end portion outer surface of the motor shaft external thread sleeve 9'.

[0028] The diameter of the shaft shoulder hole 3-1 in the embodiment one is less than the diameter of the thread cavity 3-2, the diameter of the shaft shoulder hole 3-1 is less than the diameter of the bearing chamber 2, and simultaneously the diameter of the shaft shoulder hole 3-1 is greater than the diameter of the motor shaft 4.

[0029] The diameter of the bearing chamber 2 in the embodiment one is matched with the outer diameter of the bearing 2' that is matched. Embodiment two

[0030] As shown in Figure 4 ,Figure 5 As shown, the motor power output end cover of the motor installed and positioned by a threaded hole seat of the utility model of example two is an integral end cover composed of a cover plate 1, a bearing chamber 2 and an outer threaded hole seat 3', and the bearing chamber 2 and a shaft shoulder through hole 3-1' arranged on the same axis are sequentially machined along the central axis of the outer threaded hole seat 3' from bottom to top; the outer surface of the outer threaded hole seat 3' is a two-step cylindrical surface with a small upper end and a large lower end, and an outer thread 5' is machined on the small diameter section of the two-step cylindrical surface.

[0031] The outer thread 5' in the outer threaded hole seat 3' in example two is matched and connected with the inner thread machined on the outer surface of the bottom end of the motor shaft inner threaded sleeve 9".

[0032] The shaft shoulder through hole 3-1' in example two is smaller than the diameter of the bearing chamber 2, and the diameter of the shaft shoulder through hole 3-1' is larger than the diameter of the motor shaft 4.

[0033] The diameter of the bearing chamber 2 in example two is matched with the outer diameter of the bearing 2'.

[0034] The specific use of the utility model is as follows:

[0035] In example one, the bottom end part with an outer thread of the motor shaft outer threaded sleeve 9' is screwed into the lock nut 8 first; then, the gasket 14 is added and screwed into the threaded cavity 3-2 in the inner threaded hole seat 3 to be combined and connected with the inner thread 5, and the screwing depth is adjusted; then, the lock nut 8 is reversely tightened. Among them, the screwing torque of the motor shaft outer threaded sleeve 9' into the inner threaded hole seat 3 or the reverse tightening torque of the lock nut 8 is much larger than the maximum torque of the motor 7 in forward and reverse rotation, so that the connection between the motor 7 and the motor shaft outer threaded sleeve 9' can be ensured not to be loose during normal use; subsequently, the use operation of the application number 2021103125403, the name of a stove, a frying machine and a matching pot capable of automatically frying is referred to - that is, the upper end thread of the motor shaft outer threaded sleeve 9' is screwed into the adjusting nut 10, the gasket 14 is added, the reserved eyelet hole is passed upwards through the motor installation support 13 on the stove, and is combined with the inner thread of the anti-rotation outer sleeve 12 above it, the anti-rotation outer sleeve 12 is turned to make the anti-rotation outer sleeve 12 and the adjusting nut 10 on the motor shaft outer threaded sleeve 9' clamp the motor installation support 13 on the stove, so that the overall installation and positioning of the motor 7 and the speed reducer 6 on the stove is completed. At the same time, the transmission inner sleeve 11 is combined with the motor shaft 4, the power of the motor 7 is transmitted to the frying paddle in the frying pot to perform the frying action, and the top surface of the anti-rotation outer sleeve 12 is matched with the contact surface shape of the pot bottom to prevent the rotation of the pot body during frying.

[0036] The second embodiment is to first wrap the gasket 14 of a suitable thickness on the outer threaded hole seat 3', and then screw the motor shaft inner threaded sleeve 9" with an inner thread at the bottom end into the outer surface of the small diameter section at the upper end of the outer threaded hole seat 3', and connect it in combination with the outer thread 5' of the small diameter section. Among them, the screwing torque of the motor shaft inner threaded sleeve 9" into the outer thread 5' of the outer threaded hole seat 3' is much larger than the maximum torque of the forward and reverse rotation of the reducer hidden integrated motor 7', so as to ensure that the reducer hidden integrated motor 7' and the motor shaft inner threaded sleeve 9" will not be loose during normal use. Subsequently, refer to the use of the application number 2021103125403, the name of a stove that can automatically cook, a cooking machine and its matching pot, which is to further screw the upper end thread of the motor shaft inner threaded sleeve 9" into the adjusting nut 10, add the gasket 14, pass through the reserved eyelet on the motor mounting support 13 on the stove, and combine with the inner thread of the anti-rotation outer sleeve 12 on it, turn the anti-rotation outer sleeve 12, make the anti-rotation outer sleeve 12 and the adjusting nut 10 on the motor shaft inner threaded sleeve 9" clamp the motor mounting support 13 on the stove, so as to complete the overall installation and positioning of the reducer hidden integrated motor 7' on the stove. At the same time, the transmission inner sleeve 11 combines with the motor shaft 4 to transmit the power of the reducer hidden integrated motor 7' to the cooking paddle in the cooking pot for stir-frying action, while the top surface of the anti-rotation outer sleeve 12 prevents the rotation of the pot body during cooking by matching the contact surface shape of the pot bottom.

Claims

1. A motor power output end cover for mounting a positioning motor using a threaded hole seat, characterized in that: The motor power output end cover is an integral end cover composed of a cover plate (1), a bearing chamber (2) and an internal thread hole seat (3), and the bearing chamber (2), a shaft shoulder hole (3-1) and a threaded cavity (3-2) are sequentially machined along the central axis of the internal thread hole seat (3) from bottom to top.

2. A motor power output end cover for mounting a motor in a threaded boss according to claim 1, wherein: The internal thread (5) in the internal thread hole seat (3) is matched and connected with the external thread machined on the bottom end surface of the external thread sleeve (9') of the motor shaft.

3. A motor power output end cover for mounting a motor in a threaded boss according to claim 1, wherein: The diameter of the shaft shoulder hole (3-1) is smaller than the diameter of the threaded cavity (3-2), the diameter of the shaft shoulder hole (3-1) is smaller than the diameter of the bearing chamber (2), and the diameter of the shaft shoulder hole (3-1) is larger than the diameter of the motor shaft (4).

4. A motor power output end cover for mounting a positioning motor using a threaded hole seat, characterized in that: The motor power output end cover is an integral end cover composed of a cover plate (1), a bearing chamber (2) and an external thread hole seat (3'), and the bearing chamber (2) and a shaft shoulder through hole (3-1') are sequentially machined along the central axis of the external thread hole seat (3') from bottom to top.

5. A motor power output end cover for mounting a motor in a motor mount according to claim 4, wherein: The external surface of the external thread hole seat (3') is a two-step cylindrical surface with a small upper end and a large lower end, and an external thread (5') is machined on the small diameter section of the two-step cylindrical surface.

6. A motor power output end cover for mounting a motor in a motor mount according to claim 4, wherein: The external thread (5') in the external thread hole seat (3') is matched and connected with the internal thread machined on the bottom end surface of the internal thread sleeve (9'') of the motor shaft.

7. A motor power output end cover for mounting a motor in a motor mount according to claim 1 or 4, wherein: The diameter of the shaft shoulder through hole (3-1') is smaller than the diameter of the bearing chamber (2), and the diameter of the shaft shoulder through hole (3-1') is larger than the diameter of the motor shaft (4). The diameter of the bearing chamber (2) is matched with the outer diameter of the bearing (2').

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