Novel small grinding machine for belt pulley production
By designing a compact small grinding machine and utilizing electromagnet fixation and automated grinding equipment, the problems of inconvenient operation and dust hazards during the grinding process for pulley manufacturers have been solved, achieving efficient and convenient pulley surface grinding and dust control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI KUAIYU MECHANICAL & ELECTRICAL EQUIPMENT CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-04-21
AI Technical Summary
In the existing technology, pulley manufacturers with small production scale and low investment face problems such as inconvenient operation, low efficiency and harmful dust to health during the grinding process.
A compact small grinding machine was designed, equipped with an electric linear slide, an electric grinding device, a dust collection mechanism, and a rotating fixing mechanism. It uses an electromagnet to fix the pulley, and combines the electric linear slide and grinding device to perform automated grinding. Dust is collected through a dust leakage hole and a collection bin.
It achieves efficient and convenient belt pulley surface grinding, reduces the health hazards of dust, improves work efficiency, and reduces equipment space occupation and investment costs.
Smart Images
Figure CN224144172U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of auxiliary equipment for belt pulley production, and in particular to a novel small grinding machine for belt pulley production. Background Technology
[0002] Pulleys, belonging to the category of disc-shaped parts, are generally manufactured using casting and forging processes. The materials used for pulleys vary, including steel and aluminum. Pulleys are primarily used to transmit power in equipment. After the semi-finished pulley is manufactured, its surface usually requires grinding to ensure it meets actual working requirements (pulleys without surface grinding are prone to burrs that can cause injury and negatively impact their appearance).
[0003] In existing technologies, especially for pulley manufacturers with small production scales, low investment, and low output (e.g., manufacturers that don't specialize in single-batch production of pulleys but only produce a small number of pulleys for their own machinery), the common practice for post-production pulley grinding is to fix the pulley between two chucks of a fixture and then use a handheld electric grinder to grind the pulley surface. This method requires workers to fix and loosen the fixture, which is inconvenient and reduces work efficiency. Furthermore, since the pulleys and electric grinders are exposed to the air, the dust generated during grinding can negatively impact the respiratory health of workers. Therefore, it is highly necessary to provide a small pulley grinding machine specifically designed for manufacturers with small production scales and low investment, offering relative convenience to workers and posing no threat to their health. Utility Model Content
[0004] In order to overcome the shortcomings of existing belt pulley manufacturers with small production scale, low investment and low output, whose belt pulley grinding equipment has limitations in structure and function as described in the background art, this utility model provides a new type of small grinding machine for belt pulley production. It has a relatively compact structure, occupies little space, has low investment, can perform grinding operations on the surface of belt pulleys through simple operation, and minimizes the adverse effects of grinding dust on the health of workers.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] A new type of small grinding machine for producing pulleys includes an electric linear slide, a housing, an electric grinding device, a motor, a drive pulley, a driven pulley, and a transmission belt. It also features a dust collection mechanism and a rotating fixing mechanism. The front end of the housing has an open structure with a rotatable door. Multiple dust leakage holes are distributed in the lower part of the housing. The dust collection mechanism includes a lower housing and a collection chamber. The upper end of the lower housing has an opening, and the lower end of the housing is fixedly mounted on the upper end of the lower housing. The housing of the electric linear slide is vertically fixedly mounted inside one end of the housing, and a support base is fixedly mounted on the side of its sliding block. The housing of the electric grinding device is fixedly mounted on the side of the support base. The rotating fixing mechanism and the motor are respectively fixedly mounted at both ends of the lower part of the housing. The drive pulley is fixedly mounted on the upper end of the motor shaft. The driven pulley and the rotating fixing mechanism are fixedly mounted together. The transmission belt is looped around the outer ends of the drive pulley and the driven pulley.
[0007] Furthermore, the lower housing has an opening A at its front end, and the upper end of the collection chamber is an open structure, with the collection chamber sliding into the opening A.
[0008] Furthermore, the upper inner diameter of the collection chamber is larger than the lower outer diameter of the outer shell, the collection chamber is filled with water, and a handle is fixedly installed on its front outer end.
[0009] Furthermore, the rotating fixing mechanism includes a fixed base, a rotating shaft, an electromagnet, a housing, bearing seats fixedly installed at the upper and lower ends of the fixed base, the outer side of the rotating shaft fixedly installed inside and outside the inner rings of the two bearing seats, the driven pulley fixedly installed outside the rotating shaft and located outside the upper end of the fixed base, the lower end of the housing fixedly installed at the top of the rotating shaft, and the electromagnet fixedly installed at the upper end of the housing.
[0010] Furthermore, an insulating sleeve is fixedly installed on the outer side of the middle part of the rotating shaft, and metal rings are fixedly installed on the outer sides of the upper and lower ends of the insulating sleeve, respectively. The inner side of the metal rings is electrically connected to the power input terminal of the electromagnet. An insulating seat is fixedly installed on the inner side of the fixed seat, and metal contact pieces are installed on the side of the insulating seat. The rear sides of the two metal contact pieces are in sliding electrical contact with the front outer sides of the two metal rings, respectively.
[0011] Compared with the prior art, the advantages of this utility model are: the structure of this new model is relatively compact, occupies less space, and has low investment. With simple operation, the surface of the pulley can be polished by an electric grinder or an electric linear slide. Since the pulley is fixed by an electromagnet, it is convenient for workers to pick up and put down the pulley, and the work efficiency is improved accordingly. The dust generated during polishing can be leaked into the collection chamber through the dust leakage hole. Moreover, the polishing process is carried out in a fully sealed shell, which minimizes the adverse effects of dust on the health of workers after polishing. Therefore, this new model has good application prospects. Attached Figure Description
[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0014] Figure 2 This is a partial structural schematic diagram of the present invention.
[0015] Figure 3 This is the circuit diagram of this utility model. Detailed Implementation
[0016] Figure 1 , 2 As shown in Figure 3, the small grinding machine for producing new pulleys includes an electric linear slide M3, a housing 1, an electric grinding device M1, a motor M2, a driving pulley 2, a driven pulley 3, a ring transmission belt 4, power switches S1, S2, S3, and S4, a power module T1, and also has a dust collection mechanism and a rotating fixing mechanism. The front end of the housing 1 has an open structure, and two movable doors 101 are rotatably installed at the front end of the housing 1. Multiple dust leakage holes 102 are distributed on the lower inner surface of the housing 1. The dust collection mechanism includes a lower housing 51 and a collection chamber 52. The upper middle part of the hollow lower housing 51 has an opening. The lower end is fixedly welded to the upper end of the lower housing 51; the housing of the electric linear slide table M3 is vertically distributed and fixedly installed in the middle of the left end inside the outer housing 1, and its sliding block is located at the right end. A support seat 6 is fixedly installed at the right end of the sliding block. The housing of the electric grinding device M1 is vertically distributed and fixedly installed at the right outer end of the support seat 6; the rotating fixing mechanism and the motor M2 are respectively fixedly installed in the middle of the left and right ends inside the outer housing 1. The driving pulley 2 is fixedly installed on the upper end of the rotating shaft of the motor M2. The driven pulley 3 and the rotating fixing mechanism are fixedly installed together. The annular transmission belt 4 is annularly sleeved on the outer ends of the driving pulley 2 and the driven pulley 3. Power switches S1, S2, S3, and S4 and power module T1 are installed in the electrical control box. The electrical control box is fixedly installed outside the upper end of the outer housing 1 (the handles of power switches S1, S2, S3, and S4 are located outside the four openings at the front end of the electrical control box).
[0017] Figure 1 , 2As shown in Figure 3, the lower housing 51 has a rectangular opening A at its front end. The upper end of the rectangular collection chamber 52 is an open structure, and the collection chamber 52 slides into the opening A of the lower housing 51. The inner diameter of the upper end of the collection chamber 52 is slightly larger than the outer diameter of the lower end of the outer housing 1. The collection chamber 52 is filled with water, and a handle 521 is fixedly installed on its front outer end. The inner diameter of the opening at the middle of the upper end of the hollow lower housing 51 is the same as the outer diameter of the lower end of the outer housing 1. The rotating and fixing mechanism includes a fixed base 71, a rotating shaft 72, an electromagnet DC, and a housing 73. A bearing seat 711 is installed at the middle of the upper end and the middle of the lower end of the hollow fixed base 71, respectively. The outer side of the hollow rotating shaft 72 is tightly fitted inside and outside the inner ring of the bearings of the two bearing seats 711. The driven pulley 3 is fixedly installed on the outside of the rotating shaft 72 and located outside the upper end of the fixed base 71. The lower end of the housing 73 is fixedly installed on the top of the rotating shaft 72. The electromagnet DC is fixedly installed on the upper end of the housing 73 (non-magnetic metal material). The wire A, which is connected to the DC of the electromagnet, enters the shaft 72 through the opening in the lower middle of the housing 72, and is led out to the fixed seat through the opening at the lower middle end of the shaft 72. An insulating plastic sleeve 74 is tightly fitted on the outer side of the middle of the shaft 72. A copper ring 75 is fixedly installed on the outer side of the upper and lower ends of the plastic sleeve 74, respectively. The wire A is led out through the openings at the upper and lower ends of the plastic sleeve and is electrically soldered to the inner side of the copper ring 75, respectively. An insulating seat 76 is fixedly installed in the middle right of the fixed seat. A copper contact piece 77 is installed on the upper and lower left sides of the insulating seat 76, respectively. The rear left ends of the two contact pieces 77 are in sliding electrical contact with the front outer sides of the two rings 75, respectively. The right sides of the two contact pieces 77 are connected to the power output terminals 3 and 4 of the fourth power switch S4 through wires.
[0018] Figure 1 , 2 As shown in Figure 3, one end of the power input of the electric grinding device M1 and the motor M2 is connected to one end of two power switches S1 and S2 via wires; the other end of the two power switches S1 and S2, the other end of the power input of the electric grinding device M1 and the motor M2, the power input terminals 1 and 2 of the power module T1 are connected to the AC 220V power supply via wires; the power output terminals 3 and 4 of the power module T1 are connected to the power input terminals 1 and 2 of the third power switch S3 and the fourth power switch S4 via wires; the power output terminals 3 and 4 of the third power switch S3 are connected to the positive and negative poles and the negative and positive poles of the electric linear slide M3 via wires; the power output terminals 3 and 4 of the fourth power switch S4 are connected to the two contact pieces 77 of the power input terminal of the rotating fixing mechanism via wires.
[0019] Figure 1 , 2As shown in Figure 3, this new structure is relatively compact, has the advantages of occupying less space and low investment. After the 220V power supply enters the power input terminal of the power module T1, the power module T1 outputs a stable DC 24V power supply through pins 3 and 4, which enters the power input terminals of power switches S3 and S4. Before polishing, the operator opens the movable door 101 (which can be made of transparent material to observe the internal polishing process from the outside), and then turns on the power switch S4. As a result, the electromagnet DC is energized and generates a magnetic force (the 24V power supply enters the two contact pieces 77 through pins 1 and 2 and pins 3 and 4 of the power switch S4, and then enters the power input terminal of the electromagnet DC through the two rings 75. Since the left rear side of the two contact pieces 77 is in sliding electrical contact with the front outer side of the two rings 75 respectively, the rotating electromagnet DC will be energized and work), attracting the lower end face of the pulley 8 to be polished onto the housing 73 (the electromagnet DC inside the housing generates a magnetic attraction). Then, the power switch S3 is turned on. When the handle is moved to the left, pins 1 and 2 and pins 3 and 4 of the power switch S3 are connected, energizing the positive and negative power input terminals of the electric linear slide M3. Its sliding block drives the electric grinding device M1 to descend. When the lower end of the grinding head of the electric grinding device M1 contacts the upper end of the pulley 8, the power switch S3 is turned off. Then, the power switches S1 and S2 are turned on, and the electric grinding device M1 is energized and operates. Its grinding head rotates clockwise. After the motor M2 is energized and operates, its shaft drives the housing and the pulley 8 attracted to the housing to rotate counterclockwise via the driving pulley 2, the transmission belt 4, and the driven belt 3. In this way, the electric grinding device M1 will grind the upper surface of the pulley. After the upper surface of pulley 8 is polished, turn off power switches S1, S2, and S4. The motor and electric polishing equipment will stop working (the DC electromagnet will no longer generate attraction). Then, turn the handle of power switch S3 to the right. Pins 1 and 2, and pins 5 and 6 of power switch S3 will be connected respectively. The positive and negative power input terminals of the electric linear slide M1 will be energized. The movable block of the electric linear slide M1 will drive the electric polishing equipment M1 to rise to the desired height. After reaching the desired height, turn off the power switch. Then, the operator can flip pulley 8 over and polish the original lower surface of the pulley. Finally, turn on power switches S1, S2, and S4. The DC electromagnet will engage the pulley, and the motor will drive the pulley to rotate again, allowing the electric polishing equipment to polish the pulley. Through the above, this new type of equipment can polish the surface of pulleys with simple operation using an electric polisher and an electric linear slide. Because the pulley is fixed by an electromagnet, it makes it convenient for operators to pick up and put down the pulley, and correspondingly improves work efficiency. The dust generated during the grinding process can be leaked into the collection chamber 52 through the dust leakage hole, and the grinding process is carried out in the fully sealed outer shell 1, which minimizes the adverse effects of grinding dust on the health of workers (the water containing dust can be poured out after pulling out the collection chamber, and it can be reused after replacing it with clean water and reinstalling the collection chamber). Figure 2In the diagram, power module T1 is a finished product of AC 220V to DC 24V power module; motor M2 has an AC 220V operating voltage and a power of 800W; electric grinding equipment M1 has a power of 2KW; electric lead screw slide M3 is a finished product of electric lead screw linear slide with a power of 200W; and electromagnet has a DC power of 80W.
[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.
[0021] Furthermore, it should be understood that although this specification describes the embodiments, the embodiments do not necessarily contain only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A small grinding machine for producing new type of pulleys, comprising an electric linear slide, a housing, an electric grinding device, a motor, a driving pulley, a driven pulley, and a transmission belt, characterized in that, It also features a dust collection mechanism and a rotating fixing mechanism; the front end of the outer shell is an open structure with a movable door rotatably installed at the front end of the outer shell, and multiple dust leakage holes are distributed in the lower part of the outer shell. The dust collection mechanism includes a lower shell and a collection chamber, with an opening at the upper end of the lower shell, and the lower end of the outer shell is fixedly installed at the upper end of the lower shell; the housing of the electric linear slide is vertically fixedly installed at one end of the outer shell, and a support base is fixedly installed on the side end of its sliding block, and the housing of the electric grinding equipment is fixedly installed on the side end of the support base; the rotating fixing mechanism and the motor are respectively fixedly installed at both ends of the lower part of the outer shell, the driving pulley is fixedly installed on the upper end of the motor shaft, the driven pulley and the rotating fixing mechanism are fixedly installed together, and the transmission belt is looped around the outer ends of the driving pulley and the driven pulley.
2. The novel small-sized grinding machine for pulley production according to claim 1, characterized in that, The lower shell has an opening A at the front end, and the upper end of the collection chamber is an open structure, with the collection chamber sliding into the opening A.
3. The novel small-sized grinding machine for pulley production according to claim 2, characterized in that, The upper inner diameter of the collection chamber is larger than the lower outer diameter of the outer shell. The collection chamber is filled with water and a handle is fixedly installed on its front outer end.
4. The novel small-sized grinding machine for pulley production according to claim 1, characterized in that, The rotating and fixing mechanism includes a fixed base, a rotating shaft, an electromagnet, a housing, bearing seats fixedly installed at the upper and lower ends of the fixed base, the outer side of the rotating shaft is fixedly installed inside and outside the inner rings of the bearings in the two bearing seats, the driven pulley is fixedly installed outside the rotating shaft and located outside the upper end of the fixed base, the lower end of the housing is fixedly installed on the top of the rotating shaft, and the electromagnet is fixedly installed inside the upper end of the housing.
5. The novel small-sized grinding machine for pulley according to claim 4, wherein An insulating sleeve is fixedly installed on the outer side of the middle part of the rotating shaft. Metal rings are fixedly installed on the outer sides of the upper and lower ends of the insulating sleeve. The inner side of the metal rings is electrically connected to the power input terminal of the electromagnet. An insulating seat is fixedly installed on the inner side of the fixed seat. Metal contact pieces are installed on the side of the insulating seat. The rear sides of the two metal contact pieces are in sliding electrical contact with the front outer sides of the two metal rings, respectively.