Special Motor for Telescopic Boom Aerial Work Platform with Brake

Abstract

The present invention relates to the technical field of motors, and particularly to a special motor for a telescopic boom aerial work platform with a brake. Inside the motor housing, a stator, a rotor and a rotating shaft are sequentially arranged. The rotating shaft is sleeved with a front-end bearing and a rear-end bearing. A side plate is arranged between the rear-end bearing and the motor housing and is connected through the side plate. The side plate is connected with a sleeve for installing the stator inside. A brake for controlling the motor to stop is arranged inside the rear cover, and the brake is installed on the rotating shaft. Heat dissipation components for dissipating heat from the motor are arranged on the motor housing and the rear cover. In the invention of the special motor for a telescopic boom aerial work platform with a brake, the heat dissipation components cover the motor housing and the rear cover, and the heat dissipation fins are inserted into the interiors of the motor housing and the rear cover, so that the heat located inside the motor housing and the rear cover can be effectively dissipated, and the heat dissipation effect is good. At the same time, the problem that the side plate connecting the rear-end bearing inside the motor housing divides the interior of the motor into two front and rear cavities, resulting in uneven heat dissipation inside the motor, is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a special motor for a telescopic boom aerial work vehicle with a brake. Background Art

[0002] A motor refers to an electromagnetic device that realizes the conversion or transmission of electrical energy based on the law of electromagnetic induction. The main function of the motor is to generate a driving torque, convert mechanical energy into electrical energy, and serve as a power source for electrical appliances or various machines.

[0003] During the use of the motor, heat is generated. If the generated heat cannot be discharged in time, it will not only affect the performance of the motor, but also may pose a risk of explosion due to high temperature. Therefore, the motor has high requirements for heat dissipation performance.

[0004] For traditional motor heat dissipation, a heat dissipation method is adopted in which heat dissipation fins are provided on the motor housing and a heat dissipation fan is provided at the rear of the motor. The heat dissipation effect is poor and cannot fully meet the heat dissipation requirements of the motor. Summary of the Invention

[0005] The present invention provides a special motor for a telescopic boom aerial work vehicle with a brake in view of the deficiencies of the prior art.

[0006] The present invention solves the above technical problems by the following technical means:

[0007] A special motor for a telescopic boom aerial work vehicle with a brake includes a housing and a rear cover. Inside the housing, a stator, a rotor, and a rotating shaft are sequentially arranged. The rotating shaft is sleeved with a front bearing and a rear bearing.

[0008] A side plate is provided between the rear bearing and the housing and is connected through the side plate. The side plate is connected with a sleeve for installing the stator inside; a brake for controlling the motor to stop is arranged inside the rear cover, and the brake is installed on the rotating shaft.

[0009] A heat dissipation member for dissipating heat from the motor is provided on the housing and the rear cover. The heat dissipation member includes an arc-shaped plate, and heat dissipation fins are provided on the arc-shaped plate. One end of the heat dissipation fin protrudes from the arc-shaped plate, and the other end penetrates the side walls of the housing and the rear cover and extends into the inside of the housing and the rear cover.

[0010] As an improvement of the above technical solution, the heat dissipation fins include a first heat conduction fin, a second heat conduction fin, and a third heat conduction fin located on the inner arc surface of the arc-shaped plate, and a fourth heat conduction fin provided on the outer arc surface of the arc-shaped plate. The first heat conduction fin and the second heat conduction fin are located on the left side of the side plate, and the third heat conduction fin is located on the right side of the side plate.

[0011] The movable end of the first heat conducting sheet away from the arc-shaped plate contacts the stator. The connecting ends of the first heat conducting sheet and the second heat conducting sheet abut against the sleeve. The movable end of the second heat conducting sheet away from the arc-shaped plate abuts against the outer ring of the sleeve.

[0012] As an improvement of the above technical solution, the number of the arc-shaped plates is at least three, and a plurality of arc-shaped plates form a complete ring and are sleeved on the machine shell and the rear cover.

[0013] As an improvement of the above technical solution, a detachable installation is adopted between the heat dissipation member and the machine shell, and between the heat dissipation member and the rear cover;

[0014] Two positioning grooves are provided on the arc-shaped plate, and the two positioning grooves are respectively located on both sides of the heat dissipation fin;

[0015] Two groups of positioning plates corresponding to the two positioning grooves are provided outside the arc-shaped plate. One end of the positioning plate is matched with the positioning groove. The number of each group of positioning plates is at least three, and a plurality of positioning plates form a complete ring and are sleeved on the arc-shaped plate. The positioning plate is connected with a mounting plate, and a bolt is movably inserted into a through hole opened on the mounting plate, and the bolt is threadedly connected with threaded holes opened on the machine shell and the rear cover respectively.

[0016] As an improvement of the above technical solution, air holes are opened on the side plate, the sleeve and the rear cover;

[0017] A fan is provided at one end of the rotating shaft located inside the rear cover;

[0018] Support legs are connected to the machine shell and the rear cover and are arranged oppositely.

[0019] As an improvement of the above technical solution, a first annular groove is provided on the outer wall of the machine shell, and a second annular groove is provided on the outer wall of the rear cover. The first annular groove and the second annular groove form a complete annular groove, and the heat dissipation member is located inside the annular groove.

[0020] As an improvement of the above technical solution, a first preliminary positioning component is provided between the rear cover and the heat dissipation member;

[0021] The first preliminary positioning component includes a first installation cavity opened on the rear cover. The opening end of the first installation cavity is located inside the annular groove. Two L-shaped clamping pieces are provided on the inner wall of the first installation cavity, and an extension plate connected to the arc-shaped plate is clamped and fixed between the two L-shaped clamping pieces.

[0022] As an improvement of the above technical solution, a second preliminary positioning component is provided between the machine shell and the heat dissipation member;

[0023] The second preliminary positioning assembly includes a second mounting cavity opened on the casing, the open end of the second mounting cavity is arranged inside the annular groove, the inner wall of the second mounting cavity is connected to a cross rod through a spring, the end of the cross rod away from the spring is against the arc plate, and the upper and lower ends of the cross rod are slidably engaged with the inner wall of the second mounting cavity.

[0024] Beneficial effects of the present invention:

[0025] In the invention of the motor for telescopic boom aerial work platform with brake, the cable and waterproof connector are used for outlet, and the rotating shaft is directly connected to the reduction box of the telescopic boom aerial work platform. The setting without the front cover reduces the axial dimension and makes the structure more compact. At the same time, a connection link is removed, which improves the assembly accuracy. The setting of the brake controls the platform vehicle to stop accurately and safely.

[0026] The heat sink covers the housing and the rear cover, and the heat sink is inserted into the housing and the rear cover. This effectively conducts away the heat inside the housing and the rear cover, achieving a good heat dissipation effect. This also solves the problem of uneven heat dissipation inside the motor caused by the side plate connected to the rear end bearing inside the motor housing dividing the interior of the motor into two cavities, front and back.

[0027] The fourth heat conducting plate in the heat sink increases the contact area with the air outside the motor and improves the heat dissipation efficiency. The distribution of the first, second and third heat conducting plates improves the ability to evenly distribute heat inside the motor.

[0028] The heat sink is detachably mounted between the housing and the back cover, solving the problem of the heat sink covering the housing and the back cover, which makes it inconvenient to install and remove the back cover and repair the internal components of the motor. The heat sink not only dissipates heat inside the motor, but also serves as a connection between the housing and the back cover.

[0029] The setting of the first preliminary positioning component preliminarily fixes the back cover on the heat sink, thereby improving the stability of the back cover during installation and improving the convenience of installation; the setting of the second preliminary positioning component preliminarily fixes the heat sink on the casing, thereby improving the stability of the heat sink during installation and improving the convenience of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic structural diagram of a motor for a telescopic boom aerial work vehicle with a brake according to an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the internal structure of a motor for a telescopic boom aerial work vehicle with a brake according to an embodiment of the present invention;

[0032] Figure 3 This is a schematic structural diagram of a heat sink according to an embodiment of the present invention;

[0033] Figure 4 Schematic diagram of the housing and the rear cover structure according to the embodiment of the present invention;

[0034] Figure 5 Enlarged schematic diagram of structure A according to the embodiment of the present invention;

[0035] Figure 6 Enlarged schematic diagram of structure B according to the embodiment of the present invention;

[0036] Reference numerals: housing 1; side plate 101; sleeve 102; first annular groove 103; stator 2; rotor 3; rotating shaft 4; front end bearing 5; rear end bearing 6; brake 7; fan 8; rear cover 9; second annular groove 901; heat dissipation member 10; arc plate 1001; positioning groove 1002; first heat conduction sheet 1003; second heat conduction sheet 1004; third heat conduction sheet 1005; fourth heat conduction sheet 1006; positioning plate 11; mounting plate 12; bolt 13; support leg 14; first preliminary positioning assembly 15; first installation cavity 1501; extension plate 1502; L-shaped clip 1503; second preliminary positioning assembly 16; second installation cavity 1601; spring 1602; cross bar 1603. Detailed implementation manners

[0037] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0039] Embodiment

[0040] As Figure 1 、 2 shown, the special motor for telescopic boom aerial work vehicle with a brake in this embodiment includes a housing 1 and a rear cover 9. Inside the housing 1, a stator 2, a rotor 3 and a rotating shaft 4 are sequentially arranged. The rotating shaft 4 is sleeved with a front end bearing 5 and a rear end bearing 6.

[0041] A side plate 101 is provided between the rear bearing 6 and the housing 1 and they are connected through the side plate 101. The side plate 101 is connected with a sleeve 102 for internally installing the stator 2; a brake 7 for controlling the motor to stop is arranged inside the rear cover 9, and the brake 7 is installed on the rotating shaft 4;

[0042] Heat dissipation components 10 for dissipating heat from the motor are arranged on the housing 1 and the rear cover 9. The heat dissipation components 10 include an arc-shaped plate 1001, and heat dissipation fins are arranged on the arc-shaped plate 1001. One end of the heat dissipation fin protrudes from the arc-shaped plate 1001, and the other end penetrates through the side walls of the housing 1 and the rear cover 9 and extends into the interior of the housing 1 and the rear cover 9.

[0043] In the invention of the special motor for the telescopic boom aerial work vehicle with a brake, a cable and a waterproof connector are used for wire outlet. The rotating shaft 4 is directly connected to the speed reducer of the telescopic boom aerial work vehicle. The absence of the front cover reduces the axial dimension and makes the structure more compact; at the same time, one connection link is removed, improving the assembly accuracy; the setting of the brake 7 controls the platform vehicle to stop accurately and safely;

[0044] The setting that the heat dissipation components 10 cover the housing 1 and the rear cover 9, and the setting that the heat dissipation fins are inserted into the interior of the housing 1 and the rear cover 9 can effectively conduct the heat located inside the housing 1 and the rear cover 9, with good heat dissipation effect. At the same time, it solves the problem that the side plate connecting the rear bearing inside the motor housing divides the interior of the motor into front and rear two cavities, resulting in uneven heat dissipation inside the motor.

[0045] As Figure 3 shown, the heat dissipation fins include a first heat conduction fin 1003, a second heat conduction fin 1004, and a third heat conduction fin 1005 located on the inner arc surface of the arc-shaped plate 1001, and a fourth heat conduction fin 1006 arranged on the outer arc surface of the arc-shaped plate 1001. The setting of the fourth heat conduction fin 1006 increases the contact area with the outside air of the motor, improving the heat dissipation efficiency. The first heat conduction fin 1003 and the second heat conduction fin 1004 are located on the left side of the side plate 101, and the third heat conduction fin 1005 is located on the right side of the side plate 101. The distribution of the first heat conduction fin 1003, the second heat conduction fin 1004, and the third heat conduction fin 1005 improves the ability of the motor to dissipate heat evenly inside;

[0046] The movable end of the first heat conduction fin 1003 away from the arc-shaped plate 1001 contacts the stator 2. The connecting ends of the first heat conduction fin 1003 and the second heat conduction fin 1004 abut against the sleeve 102. The movable end of the second heat conduction fin 1004 away from the arc-shaped plate 1001 abuts against the outer ring of the sleeve 102, contacting the components inside the motor, and improving the rate of heat transfer between the components inside the motor and the heat dissipation fins.

[0047] The number of the arc-shaped plates 1001 is at least three. Multiple arc-shaped plates 1001 form a complete ring and are sleeved on the housing 1 and the rear cover 9, increasing the distribution area of the heat dissipation components 10 and improving the heat dissipation effect.

[0048] like Figure 1 、 2 As shown, the heat sink 10 and the housing 1, and the heat sink 10 and the back cover 9 are detachably mounted, which solves the problem that the heat sink 10 covers the housing 1 and the back cover 9, making it inconvenient to install and remove the back cover 9 and to repair the internal components of the motor. The heat sink 10 not only dissipates heat inside the motor, but also serves to connect the housing 1 and the back cover 9. Two positioning grooves 1002 are provided on the curved plate 1001, and the two positioning grooves 1002 are respectively located on both sides of the heat sink.

[0049] Two groups of positioning plates 11 corresponding to the two positioning grooves 1002 are provided on the outside of the arc plate 1001. One end of the positioning plate 11 is matched with the positioning groove 1002. The number of positioning plates 11 in each group is at least three. Multiple positioning plates 11 form a complete circular ring sleeve on the arc plate 1001. The positioning plate 11 is connected to the mounting plate 12. Bolts 13 are movably inserted in the through holes opened on the mounting plate 12. The bolts 13 are threadedly connected to the threaded holes opened on the casing 1 and the back cover 9 respectively.

[0050] In the present invention, the arc-shaped plate 1001 with the heat sink is inserted into the side wall of the casing 1, the left positioning plate 11 covers the left positioning groove 1002, the mounting plate 12 and the casing 1 are connected by bolts 13, and the heat sink 10 is fixed on the casing 1; the back cover 9 is docked with the casing 1, and the heat sink is inserted into the side wall of the back cover 9. The right positioning plate 11 covers the right positioning groove 1002, and the mounting plate 12 and the back cover 9 are connected by bolts 13. The relative positions of the casing 1, the back cover 9 and the heat sink 10 are fixed, and the operation is simple and the disassembly and assembly are convenient.

[0051] like Figure 1 、 2 As shown, air holes are provided on the side panels 101, the sleeve 102 and the back cover 9. The provision of the air holes on the side panels 101, the sleeve 102 and the back cover 9 is conducive to the flow of air and the dissipation of heat inside the motor. A fan 8 is provided at one end of the rotating shaft 4 located inside the back cover 9. When the rotating shaft 4 rotates, the fan 8 is driven to rotate to dissipate heat from the motor.

[0052] The housing 1 and the rear cover 9 are connected with oppositely arranged support feet 14 ; the support feet 14 are provided to support the motor, making it convenient to connect external devices to the motor, while not affecting the installation of the heat sink 10 .

[0053] like Figure 2 、 4As shown, a first annular groove 103 is provided on the outer wall of the housing 1, and a second annular groove 901 is provided on the outer wall of the rear cover 9. The first annular groove 103 and the second annular groove 901 form a complete annular groove. The heat dissipation member 10 is located inside the annular groove. The provision of the first annular groove 103 and the second annular groove 901 reduces the volume of the motor.

[0054] As Figure 5 shown, a first preliminary positioning assembly 15 is provided between the rear cover 9 and the heat dissipation member 10; the first preliminary positioning assembly 15 includes a first installation cavity 1501 opened on the rear cover 9. The open end of the first installation cavity 1501 is located inside the annular groove. Two L-shaped clips 1503 are provided on the inner wall of the first installation cavity 1501. An extension plate 1502 connected to the arc-shaped plate 1001 is clamped and fixed between the two L-shaped clips 1503.

[0055] In the first preliminary positioning assembly 15, when the rear cover 9 is docked with the housing 1, at this time the extension plate 1502 is inserted between the two L-shaped clips 1503. The extension plate 1502 extrudes the L-shaped clips 1503 outwards, and the two L-shaped clips 1503 clamp and fix the extension plate 1502.

[0056] As Figure 6 shown, a second preliminary positioning assembly 16 is provided between the housing 1 and the heat dissipation member 10; the second preliminary positioning assembly 16 includes a second installation cavity 1601 opened on the housing 1. The open end of the second installation cavity 1601 is located inside the annular groove. A cross bar 1603 is connected to the inner wall of the second installation cavity 1601 through a spring 1602. The end of the cross bar 1603 away from the spring 1602 abuts against the arc-shaped plate 1001. The upper and lower ends of the cross bar 1603 are slidably matched with the inner wall of the second installation cavity 1601.

[0057] In the second preliminary positioning assembly 16, when the heat dissipation member 10 is placed outside the housing 1 and the heat dissipation fins are inserted into the housing 1, the arc-shaped plate 1001 squeezes the cross bar 1603 into the interior of the second installation cavity 1601. At this time, the spring 1602 is compressed. Under the action of the spring 1602, the cross bar 1603 abuts against the arc-shaped plate 1001, and the side plates 101 and the sleeves 102 abut against the heat dissipation fins, completing the clamping and fixing of the heat dissipation member 10.

[0058] The provision of the first preliminary positioning assembly 15 initially fixes the rear cover 9 on the heat dissipation member 10, improves the stability during the installation of the rear cover 9, and improves the convenience during installation;

[0059] The provision of the second preliminary positioning assembly 16 initially fixes the heat dissipation member 10 on the housing 1, improves the stability during the installation of the heat dissipation member 10, and improves the convenience during installation.

[0060] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0061] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A special motor for an extensible boom aerial work platform with a brake, comprising a housing (1) and a rear cover (9). Inside the housing (1), a stator (2), a rotor (3) and a rotating shaft (4) are sequentially arranged. The rotating shaft (4) is sleeved with a front-end bearing (5) and a rear-end bearing (6). It is characterized in that: A side plate (101) is arranged between the rear-end bearing (6) and the housing (1) and is connected through the side plate (101). The side plate (101) is connected with a sleeve (102) for internally installing the stator (2); a brake (7) for controlling the motor to stop is arranged inside the rear cover (9), and the brake (7) is installed on the rotating shaft (4); A heat dissipation component (10) for dissipating heat from the motor is arranged on the housing (1) and the rear cover (9). The heat dissipation component (10) includes an arc-shaped plate (1001), and heat dissipation fins are arranged on the arc-shaped plate (1001). One end of the heat dissipation fin protrudes from the arc-shaped plate (1001), and the other end penetrates through the side walls of the housing (1) and the rear cover (9) and extends into the inside of the housing (1) and the rear cover (9); The heat dissipation fin includes a first heat conduction fin (1003), a second heat conduction fin (1004) and a third heat conduction fin (1005) located on the inner arc surface of the arc-shaped plate (1001), and a fourth heat conduction fin (1006) arranged on the outer arc surface of the arc-shaped plate (1001). The first heat conduction fin (1003) and the second heat conduction fin (1004) are located on the left side of the side plate (101), and the third heat conduction fin (1005) is located on the right side of the side plate (101); The movable end of the first heat conduction fin (1003) away from the arc-shaped plate (1001) contacts the stator (2). The connecting ends of the first heat conduction fin (1003) and the second heat conduction fin (1004) abut against the sleeve (102). The movable end of the second heat conduction fin (1004) away from the arc-shaped plate (1001) abuts against the outer ring of the sleeve (102).

2. The special motor for telescopic boom aerial work platform with brake according to claim 1, wherein: The number of the arc-shaped plates (1001) is at least three, and multiple arc-shaped plates (1001) form a complete ring and are sleeved on the housing (1) and the rear cover (9).

3. The special motor for the telescopic boom aerial work platform with a brake according to claim 1, characterized in that: The heat dissipation component (10) is detachably installed between the heat dissipation component (10) and the housing (1) and between the heat dissipation component (10) and the rear cover (9); Two positioning grooves (1002) are arranged on the arc-shaped plate (1001), and the two positioning grooves (1002) are respectively located on both sides of the heat dissipation fin; Two groups of positioning plates (11) corresponding to the two positioning grooves (1002) are arranged outside the arc-shaped plate (1001). One end of the positioning plate (11) is matched with the positioning groove (1002). The number of each group of positioning plates (11) is at least three, and multiple positioning plates (11) form a complete ring and are sleeved on the arc-shaped plate (1001). The positioning plate (11) is connected with a mounting plate (12), and a bolt (13) is movably inserted into a through hole opened on the mounting plate (12), and the bolt (13) is threadedly connected with threaded holes opened on the housing (1) and the rear cover (9) respectively.

4. The special motor for the telescopic boom aerial work platform with a brake according to claim 1, characterized in that: Air holes are formed in the side plate (101), the sleeve (102) and the rear cover (9). One end of the rotating shaft (4) located inside the rear cover (9) is provided with a fan (8). Support feet (14) are connected to the housing (1) and the rear cover (9) and are arranged oppositely.

5. The special motor for telescopic boom aerial work platform with brake according to claim 1, characterized in that: A first annular groove (103) is formed on the outer wall of the housing (1), and a second annular groove (901) is formed on the outer wall of the rear cover (9). The first annular groove (103) and the second annular groove (901) form a complete annular groove, and the heat dissipation member (10) is located inside the annular groove.

6. The special motor for the telescopic boom aerial work platform with a brake according to claim 5, characterized in that: A first preliminary positioning assembly (15) is arranged between the rear cover (9) and the heat dissipation member (10). The first preliminary positioning assembly (15) includes a first installation cavity (1501) formed in the rear cover (9). The open end of the first installation cavity (1501) is located inside the annular groove. Two L-shaped clips (1503) are arranged on the inner wall of the first installation cavity (1501), and an extension plate (1502) connected to the arc-shaped plate (1001) is clamped and fixed between the two L-shaped clips (1503).

7. The special motor for telescopic boom aerial work platform with brake according to claim 5, characterized in that: A second preliminary positioning assembly (16) is arranged between the housing (1) and the heat dissipation member (10). The second preliminary positioning assembly (16) includes a second installation cavity (1601) formed in the housing (1). The open end of the second installation cavity (1601) is located inside the annular groove. A cross bar (1603) is connected to the inner wall of the second installation cavity (1601) through a spring (1602). The end of the cross bar (1603) away from the spring (1602) abuts against the arc-shaped plate (1001), and the upper and lower ends of the cross bar (1603) are slidably matched with the inner wall of the second installation cavity (1601).

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