Abrasive disc belt sander with double-effect optimization
By fixing the motor shaft extension end in the sanding belt machine and setting heat dissipation holes at both ends of the motor, the negative pressure of the sanding disc is used for heat dissipation and dust collection, which solves the problems of unstable motor shaft extension end and poor heat dissipation, improves motor stability and heat dissipation efficiency, and extends the service life of the equipment and the synchronous belt.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-24
AI Technical Summary
In existing sanding belt machines, the motor shaft extension end runs unevenly, resulting in a short lifespan of the synchronous belt and poor motor heat dissipation, which affects the stability and lifespan of the equipment.
By fixing one shaft extension end of the motor to the side wall of the base and setting heat dissipation holes at both ends of the motor, the negative pressure generated by the rotation of the sand disc is used for heat dissipation. At the same time, a volute cover and dust removal components are designed to achieve airflow circulation, thereby enhancing the stability and heat dissipation effect of the motor.
It improves the stability and heat dissipation efficiency of the motor, extends the service life of the synchronous belt and motor, reduces maintenance costs, achieves dust collection effect, and enhances the overall reliability and comprehensive performance of the equipment.
Smart Images
Figure CN224027233U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of electric tools, in particular to a double-effect optimized abrasive disc and belt sander. BACKGROUND
[0002] During machining, workpieces often need to be ground, and the abrasive disc and belt sander is an indispensable high-efficiency processing equipment in modern industrial manufacturing, which is widely used in metal processing, wood processing, stone carving and other fields due to its excellent grinding performance, wide applicability and flexible operability.
[0003] The existing abrasive disc and belt sander is hoisted in the machine body by a motor as a power source, the motor shaft extends one end to directly drive the abrasive disc to run, and the other end drives the abrasive belt to run above the machine body through a synchronous belt, the abrasive belt and the abrasive disc share one dust collecting port, although the above arrangement can make full use of the space layout and make the overall structure of the equipment more compact, but there are still some problems with the above arrangement, on the one hand, since the motor body is hoisted, the motor shaft extension end is unstable, the high-speed running motor can cause dynamic shaking of the motor shaft, when the shaking motor shaft is transmitted to the synchronous belt, it is difficult to ensure the parallelism between the two pulleys connected on the synchronous belt, which directly affects the service life of the synchronous belt, therefore, the synchronous belt needs to be replaced frequently, on the other hand, the motor hoisted or fixed on the machine base does not make full use of the airflow generated inside the machine body during the dust collecting process, which results in poor heat dissipation of the motor, long-term work can cause the motor to overheat, and thus affect the service life.
[0004] Therefore, there is an urgent need for an abrasive disc and belt sander which can not only ensure stable transmission of power at the motor shaft extension end, but also effectively dissipate heat from the motor. CONTENT OF THE INVENTION
[0005] The present application aims to provide an abrasive disc and belt sander with double-effect optimization to solve the problems of unstable operation of the motor shaft extension end and poor heat dissipation of the motor in the prior art.
[0006] The embodiments of the present application can be implemented by the following technical solutions:
[0007] An abrasive disc and belt sander with double-effect optimization comprises a motor installed in a machine base, the end faces of the two shaft extension ends of the motor are provided with heat dissipation holes, the machine body of one shaft extension end of the motor is fixedly connected to the side wall of the machine base, the motor shaft of this end penetrates through the side wall of the machine base and is connected to a belt support through a transmission device, and the belt support is installed with a belt;
[0008] The machine body of the other shaft extension end of the motor is connected to a volute cover, the motor shaft of this end penetrates through the volute cover and is connected to a disc wheel, the disc wheel is installed with an abrasive disc, and a drainage port communicating with a dust removal assembly is formed below the volute cover.
[0009] Further, a center through hole is formed in the center of the volute cover, the motor shaft of the motor passes through the center through hole and is connected with the sanding disc, and at least one of the heat dissipation holes adjacent to one end of the volute cover is exposed to the center through hole.
[0010] Further, the motor comprises a front end cover arranged at one axial extension end of the motor, two or more than two support arms are arranged on the front end cover and extend outward along the radial direction, and the support arms are detachably fixedly connected with the side wall of the machine base.
[0011] Further, the motor shaft at one end of the motor passes through the front end cover and is connected with the driving wheel of the transmission device, and is connected with the driven wheel through a synchronous belt, the driven wheel is installed at the driving shaft end of the sand belt support, and the sand belt support is installed above the machine base.
[0012] Further, the motor further comprises a rear end cover arranged at the other axial extension end of the motor, two or more than two support arms are arranged on the rear end cover and extend outward along the axial direction, and the support arms are detachably fixedly connected with the volute cover.
[0013] Further, a plurality of heat dissipation holes are arranged on the end covers of the two axial extension ends of the motor, and the plurality of heat dissipation holes are distributed along the circumferential direction on the end faces.
[0014] Further, a plurality of heat dissipation holes are arranged on the volute cover, and the plurality of heat dissipation holes are distributed along the circumferential direction on the end face of the volute cover.
[0015] Further, the drainage port is located at the lower end of the volute cover and extends through to the dust discharge connector of the dust discharge assembly.
[0016] Further, the dust discharge assembly comprises a dust discharge baffle, a dust discharge cover, a dust discharge guard and a dust discharge connector, the dust discharge baffle is arranged at one end of the sand belt support, the dust discharge cover is sleeved on the boss of the dust discharge baffle, the dust discharge connector is installed on the dust discharge cover, and the dust discharge guard is installed above the inner side of the dust discharge cover.
[0017] Further, a plurality of air inlets are formed in the bottom surface of the machine base.
[0018] The sanding disc sanding machine with double-effect optimization provided by the embodiment has at least the following beneficial effects:
[0019] The application can significantly enhance the stability of the motor during work by fixing and connecting one shaft extension of the motor to the side wall of the machine base, and the stable connection mode can effectively reduce the phenomenon of slipping and deviation of the synchronous belt caused by motor vibration, thereby prolonging the service life of these components, and has the advantages of stable transmission device, low maintenance cost, high overall reliability of the equipment, etc.
[0020] The application can effectively dissipate heat during the work of the motor, especially when the negative pressure is generated by the rotation of the sand disc, the airflow in the machine base enters the motor body through the heat dissipation hole at one end of the motor along the central through hole of the volute cover, and flows along the axial direction of the motor to the other end and is sucked into the volute cover, and centrifugal rotation occurs at the volute cover, and finally is discharged through the drainage port and the dust removal assembly. At the same time, the dust and wood chips generated during the work of the sand disc and the sand belt can also be sucked into the dust collector at the dust removal assembly. This design not only has heat dissipation function, but also has dust removal effect, and has the advantages of simple structure, reasonable layout, high comprehensive performance, etc. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 It is a whole structure schematic diagram of a sand disc and sand belt machine with double-effect optimization of the application;
[0022] Figure 2 It is a schematic diagram of the air inlet and outlet flow direction of the sand disc and sand belt machine with double-effect optimization of the application in a half-section state on one side;
[0023] Figure 3 It is a schematic diagram of the air inlet and outlet flow direction of the sand disc and sand belt machine with double-effect optimization of the application in a half-section state on the other side;
[0024] Figure 4 It is a whole structure schematic diagram of the motor in the application;
[0025] Figure 5 It is a whole structure schematic diagram of the motor in the application;
[0026] Figure 6 It is a whole structure schematic diagram of the volute cover in the application.
[0027] REFERENCE NUMERALS
[0028] 1-base; 110-air inlet; 2-motor; 210-vent hole; 22-front end cover; 221-branch arm; 23-rear end cover; 231-support column; 3-transmission device; 31-driving wheel; 32-synchronous belt; 33-driven wheel; 4-abrasive belt support; 5-abrasive belt; 6-volute cover; 60-center through hole; 61-drainage port; 62-vent hole; 7-grinding disc; 8-dust removal assembly; 81-dust removal baffle; 82-dust removal cover; 83-dust removal guard; 84-dust removal connector; 9-grinding disc. DETAILED DESCRIPTION
[0029] Hereinafter, the present application will be further described based on the preferred embodiments and with reference to the accompanying drawings.
[0030] In addition, for the convenience of understanding, various components on the drawings are enlarged or reduced, but this practice is not intended to limit the scope of protection of the present application.
[0031] The singular form also includes the plural meaning, and vice versa.
[0032] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the embodiments of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, in the description of the present application, in order to distinguish different units, the first, second and the like are used in the specification, but these are not limited by the order of manufacture, and cannot be understood as indicating or implying relative importance, and the name may be different in the detailed description and claims of the present application.
[0033] The words in the specification are used to illustrate the embodiments of the present application, but are not intended to limit the present application. It should be noted that, unless otherwise explicitly specified and limited, if the terms "provided", "connected", "connected" appear, they should be understood in a broad sense, for example, they can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, can be directly connected, or indirectly connected through an intermediate medium, can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be specifically understood.
[0034] Figure 1 The overall structure of a sand disc abrasive belt machine with double-effect optimization of the present application is shown in the figure Figure 1As shown, a sand disc belt sander with double-effect optimization comprises a motor 2 installed in a base 1, a body of an axial extension of the motor 2 is fixedly connected to a side wall of the base 1, and a motor shaft at the axial extension passes through the side wall of the base 1 and is connected to a sand belt support 4 through a transmission device 3, the sand belt support 4 is provided with a sand belt 5, and one end of the motor 2 connected with the transmission device 3 is stably connected to the base 1, so as to reduce the slippage phenomenon of the motor shaft at the end when cooperating with the transmission device due to the vibration of the body in the working state, and further prolong the service life of related accessories of the transmission device 3.
[0035] Further, the body of the other axial extension of the motor 2 is connected to a volute cover 6, and a motor shaft at the axial extension passes through the volute cover 6 and is connected to a sand disc wheel 7, the sand disc wheel 7 is provided with a sand disc 9, a drainage port 61 communicating with a dust removal assembly 8 is formed below the volute cover 6, and the dust removal assembly 8 can be externally connected to a dust collector.
[0036] In some preferred embodiments, in order to fully utilize the negative pressure airflow when the dust collector is working, the end faces of the two axial extensions of the motor 2 are each provided with a heat dissipation hole 210 for heat dissipation, as shown in Figure 2 、 Figure 3 As shown, when the sand disc 9 rotates, the rotating sand disc 9 forms a negative pressure between the sand disc 9 and the volute cover 6, and the airflow passes through a central hole of the volute cover 6 to suck the air at one end of the motor 2 into the body through the heat dissipation hole 210 at the end, and flows along the axial direction of the motor 2 inside the motor 2, until passing through the heat dissipation hole 210 at the end of the motor 2 connected with the volute 6 to the volute cover 6, and centrifugally rotating along the circumferential direction in the volute cover 6, and then flowing out through the drainage port 61, so as to realize the dust removal process by means of the negative pressure generated in the rotating process of the sand disc 9, and fully dissipate heat for the motor.
[0037] In some preferred embodiments, as shown in Figure 4 The motor 2 comprises a front end cover 22 provided at one axial extension thereof, two or more than two support arms 221 distributed along the circumferential direction and extending outward along the radial direction are provided on the front end cover 22, threaded holes are formed in the support arms 221, and the support arms 221 are detachably fixedly connected to the side wall of the base 1 through bolts, so as to increase the stability of the connection and the convenience of disassembly.
[0038] In some preferred embodiments, as shown in Figure 5As shown, the motor shaft at one end of the motor 2 passes through the front end cover 22 and the driving wheel 31 of the transmission device 3, and is connected with the driven wheel 33 through the synchronous belt 32, the driven wheel 33 of the transmission device is installed at the driving shaft end of the abrasive belt bracket 4, the abrasive belt bracket 4 is installed above the machine base 1, since the front end cover 22 is fixedly connected with the machine base 1, the power output by the motor shaft at the front end cover 22 can be reliably transmitted to the synchronous belt 32, reducing the instability of the power output end, which causes the synchronous belt 32 to slip, deviate and other phenomena when cooperating with the synchronous belt 32, and improving the service life of the synchronous belt 32.
[0039] In some preferred embodiments, a plurality of heat dissipation holes 210 are arranged on the front end cover 22, and the plurality of heat dissipation holes 210 are distributed along the circumference of the front end cover 22, for increasing the ventilation efficiency.
[0040] In some preferred embodiments, a plurality of air inlets 110 are formed on the bottom surface of the machine base 1, for allowing the air outside the machine base 1 to enter the inside of the machine base 1 through the air inlets 110, and then enter the motor 2 through the heat dissipation holes 210 of the front end cover 22. Preferably, the air inlets 110 can also be formed on the side surface of the machine base 1, but considering that the side wall of the machine base 1 needs to be connected with the motor 2, too many air inlets 110 formed on the side wall will reduce the rigidity of the side wall and the stability of the support for the motor 2.
[0041] In some preferred embodiments, the motor 2 further comprises a rear end cover 23 arranged at the other shaft extending end of the motor 2, two or more than two support columns 231 are arranged on the rear end cover 23 and extend outward along the axial direction of the rear end cover 23, threaded holes are formed on the support columns 231, and the rear end cover 23 is detachably fixedly connected with the volute cover 6 through screws. Preferably, a plurality of heat dissipation holes 210 are formed on the rear end cover 23 and distributed along the circumference of the rear end cover 23, for cooperating with the heat dissipation holes 210 on the front end cover 22 to realize the airflow flowing along the axial direction of the motor 2 to the volute cover 6.
[0042] In some preferred embodiments, in order to improve the heat dissipation and ventilation efficiency of the motor 2, a central through hole 60 is formed in the center of the volute cover 6, as shown in the figure. Figure 6 As shown, the motor shaft of the motor 2 passes through the central through hole 60 and is connected with the abrasive disc wheel 7, and when the motor shaft of the motor 2 is contained in the central through hole 60, at least one heat dissipation hole 210 at one end (the end where the rear end cover 23 is located) is exposed to the central through hole 60, so that the airflow in the axial direction of the motor 2 can be quickly discharged through the central through hole 60.
[0043] In some preferred embodiments, a plurality of heat dissipation openings 62 are formed on the volute cover 6, and the heat dissipation openings 62 are distributed along the circumferential direction of the end surface of the volute cover 6, so as to improve the heat dissipation efficiency.
[0044] In some preferred embodiments, the drainage opening 61 is located at the lower end of the volute cover 6 and extends to the dust discharge joint 84 of the dust discharge assembly 8. Preferably, the dust discharge assembly 8 comprises a dust discharge baffle 81, a dust discharge cover 82, a dust discharge guard 83 and the dust discharge joint 84. The dust discharge baffle 81 is arranged at one end of the abrasive belt support 4. The dust discharge cover 82 is sleeved on the boss of the dust discharge baffle 81. The dust discharge joint 84 is mounted on the dust discharge cover 82. The dust discharge guard 83 is mounted above the inner side of the dust discharge cover 82. The dust discharge joint 84 can be mounted with a dust collector, so as to timely discharge the wood chips generated during work and take away the heat conducted from the motor 2 to the volute cover 6 through the drainage opening 61, thereby realizing the functions of dust discharge and heat dissipation.
[0045] The specific embodiments of the present application are described in detail above, and those skilled in the art can make some improvements and modifications to the present application without departing from the principles of the present application. These improvements and modifications also belong to the protection scope of the present application.
Claims
1. A sand disc belt sander with double-effect optimization, comprising a motor (2) mounted in a base (1), characterized in that: the end faces of both shaft extending ends of the motor (2) are provided with heat dissipation holes (210), wherein the motor body of one shaft extending end of the motor (2) is fixedly connected to the side wall of the base (1), and the motor shaft at this end penetrates through the side wall of the base (1) and is connected with a belt sander bracket (4) through a transmission device (3), and the belt sander bracket (4) is provided with a sand belt (5); the motor body of the other shaft extending end of the motor (2) is connected with a volute cover (6), and the motor shaft at this end penetrates through the volute cover (6) and is connected with a sand disc wheel (7), the sand disc wheel (7) is provided with a sand disc (9), and the lower portion of the volute cover (6) is provided with a drainage opening (61) which is communicated with a dust removal assembly (8).
2. The sand disc belt sander with double-effect optimization according to claim 1, characterized in that: a central through hole (60) is formed in the center of the volute cover (6), the motor shaft of the motor (2) penetrates through the central through hole (60) and is connected with the sand disc wheel (7), and at least one heat dissipation hole (210) adjacent to one end of the volute cover (6) is exposed at the central through hole (60).
3. The sand disc belt sander with double-effect optimization according to claim 1, characterized in that: the motor (2) comprises a front end cover (22) arranged at one shaft extending end thereof, the front end cover (22) is provided with two or more than two support arms (221) which are distributed along the circumferential direction thereof and extend outward along the radial direction thereof, and the support arms (221) are detachably fixedly connected with the side wall of the base (1).
4. The sand disc belt sander with double-effect optimization according to claim 3, characterized in that: the motor shaft at one end of the motor (2) penetrates through the front end cover (22) and is connected with a driving wheel (31) of the transmission device (3), and is connected with a driven wheel (33) through a synchronous belt (32), the driven wheel (33) is arranged at the driving shaft end portion of the belt sander bracket (4), and the belt sander bracket (4) is arranged above the base (1).
5. The sand disc belt sander with double-effect optimization according to claim 1, characterized in that: the motor (2) further comprises a rear end cover (23) arranged at the other shaft extending end thereof, the rear end cover (23) is provided with two or more than two support columns (231) which are distributed along the circumferential direction thereof and extend outward along the axial direction thereof, and the support columns (231) are detachably fixedly connected with the volute cover (6).
6. The sand disc belt sander with double-effect optimization according to claim 1, characterized in that: a plurality of heat dissipation holes (210) are arranged on the end covers of both shaft extending ends of the motor (2), respectively, and the plurality of heat dissipation holes (210) are distributed along the circumferential direction of the end faces thereof.
7. The sand disc belt sander with double-effect optimization according to claim 1, characterized in that: a plurality of heat dissipation openings (62) are further formed in the volute cover (6), and the plurality of heat dissipation openings (62) are distributed along the circumferential direction of the end face of the volute cover (6). 8. The double-effect optimized abrasive disc belt sander according to claim 1, characterized in that: The drainage port (61) is located at the lower end of the volute cover (6) and extends through to the dust exhaust joint (84) of the dust exhaust assembly (8).
9. The double-effect optimized abrasive disc belt sander according to claim 1, characterized in that: The dust exhaust assembly (8) comprises a dust exhaust baffle (81), a dust exhaust cover (82), a dust exhaust guard (83) and a dust exhaust joint (84), the dust exhaust baffle (81) is arranged at one end of the abrasive belt support (4), the dust exhaust cover (82) is sleeved on the boss of the dust exhaust baffle (81), the dust exhaust joint (84) is installed on the dust exhaust cover (82), and the dust exhaust guard (83) is installed above the inner side of the dust exhaust cover (82).
10. The double-effect optimized abrasive disc belt sander according to claim 1, characterized in that: The bottom surface of the machine base (1) is provided with a plurality of air inlets (110).