Grinding machine mechanism for main shaft

Abstract

The utility model provides a grinding machine mechanism for a main shaft, and belongs to the technical field of grinding machines. Comprising a grinding machine, a machine shell is arranged on the grinding machine, a main shaft is installed in the machine shell, a bearing is matched with the main shaft, the main shaft extends out of the machine shell, and the bearing is located in the machine shell; a detection ring is further fixed to the section, located in the machine shell, of the main shaft, a detection protruding block is arranged on the edge of the detection ring, a rotating speed sensor is arranged at the position, corresponding to the rotating track of the detection protruding block, of the top of the machine shell, an oil storage tank is installed on the upper end face of the machine shell, an oil supply pipe is fixed to the bottom of the oil storage tank, and a lower port of the oil supply pipe extends to the contact position of the main shafts. A control valve is arranged on the oil supply pipe and electrically connected with the rotating speed sensor. According to the utility model, a proper amount of lubricating oil can be automatically supplied according to the working state of the main shaft, the service life of equipment can be prolonged, the problem of too much or too little lubricating oil can be avoided, and the overall use effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to grinding machine technical field especially relates to a grinding machine mechanism for main shaft. BACKGROUND

[0002] The main shaft grinding machine mechanism is the core component of the grinding machine, mainly used for installing the grinding wheel or the grinding tool, and driving the high-speed rotation in the grinding process. The precision and rigidity of the main shaft directly affect the surface quality and dimensional accuracy of the processed workpiece, therefore, the lubrication and other maintenance operations are required.

[0003] At present, in the prior art, such as the Chinese patent with the announcement number CN216113286U discloses a cylindrical grinder self-lubricating main shaft, including cylindrical grinder shell and main shaft body, the main shaft body is installed in the inside of cylindrical grinder shell and penetrates cylindrical grinder shell and extends to the outside, the main shaft body is provided with bearing on the circumferential side of the inside of cylindrical grinder shell, the top surface of cylindrical grinder shell is fixedly connected with oil storage tank, the oil storage tank is placed with lubricating oil, the bottom end of oil storage tank is fixedly connected with connecting pipe, and the circumferential side of connecting pipe is fixedly installed with electromagnetic valve relay, and the connecting pipe penetrates the top wall of cylindrical grinder shell and is fixedly connected with oil supply pipe. The utility model discloses a kind of self-lubricating main shafts, which is characterized by: the main shaft body is provided with bearing on the circumferential side of the inside of cylindrical grinder shell, the top surface of cylindrical grinder shell is fixedly connected with oil storage tank, the oil storage tank is placed with lubricating oil, the bottom end of oil storage tank is fixedly connected with connecting pipe, and the circumferential side of connecting pipe is fixedly installed with electromagnetic valve relay, and the connecting pipe penetrates the top wall of cylindrical grinder shell and is fixedly connected with oil supply pipe. The utility model can complete automatic lubrication by injecting lubricating oil into the oil storage tank, adjusting the period of the timing switch of the electromagnetic valve relay, and periodically sending the lubricating oil from the oil storage tank to the contact position of the main shaft body and the bearing under the action of the limiting mechanism, thereby avoiding the step of opening the vehicle head by the operator.

[0004] However, in the actual use process of the prior art, the supply of lubricating oil is only controlled by the timing switch period of the electromagnetic valve relay, and due to different working environments, main shaft speeds and load conditions, the required amount of lubricating oil may vary greatly, resulting in the problem of being unable to accurately control the amount of lubricating oil. For example, when the main shaft is running at high speed and the load is large, the amount of lubricating oil supplied at a fixed time may not be sufficient to meet the demand for good lubrication, resulting in accelerated wear of the bearing and the main shaft; while when the main shaft is running at low speed and the load is small, the amount of lubricating oil supplied at a fixed time may be excessive, causing waste of lubricating oil and possible pollution of the working environment.

[0005] Therefore, the present application provides a grinding machine mechanism for main shaft to solve the above technical problems. UTILITY MODEL CONTENTS

[0006] The technical problem to be solved by the utility model is to provide a grinding machine mechanism for main shaft to solve the problem in the prior art that the main shaft in the grinding machine mechanism is not convenient to control the amount of lubricating oil according to the working state of the main shaft when self-lubricating, resulting in too little lubricating oil and poor lubrication effect, or too much lubricating oil and waste.

[0007] To solve the above technical problems, the utility model provides the following technical scheme:

[0008] A grinding mechanism for a main shaft, comprising a grinder, a machine shell is arranged on the grinder, a main shaft is installed in the machine shell, a bearing is matched on the main shaft, and the main shaft extends out of the machine shell, and the bearing is located in the machine shell;

[0009] A detection ring is further fixed on a section of the main shaft in the machine shell, a detection protrusion is arranged on the edge of the detection ring, a rotating speed sensor is arranged on the top of the machine shell corresponding to the rotating track of the detection protrusion, an oil storage tank is installed on the upper end surface of the machine shell, an oil supply pipe is fixed on the bottom of the oil storage tank, the lower end of the oil supply pipe extends to the contact position of the main shaft and the bearing, a control valve is arranged on the oil supply pipe, and the control valve is electrically connected with the rotating speed sensor.

[0010] Optionally, a recovery groove is fixed on the bottom of the machine shell, the recovery groove is located directly below the bearing, and a recovery pipe is connected with the recovery groove and extends out of the machine shell.

[0011] Optionally, the rotating speed sensor is an optical sensor, and the optical emission end and the receiving end of the rotating speed sensor are located on the two sides of the movement track of the detection protrusion, respectively.

[0012] Optionally, the control valve is a flow regulating valve, the rotating speed sensor is electrically connected with the control valve through a control unit, the control unit receives the rotating speed signal transmitted by the rotating speed sensor, calculates the corresponding oil supply amount according to a preset algorithm, and controls the oil supply amount through the control valve.

[0013] Optionally, a uniform oil distribution structure is further arranged on the main shaft corresponding to the mounting position of the bearing.

[0014] Optionally, the uniform oil distribution structure on the main shaft is an annular oil supply groove arranged at the contact position of the main shaft and the bearing.

[0015] Optionally, the uniform oil distribution structure on the main shaft is an oil distribution ring fixed on the main shaft, an oil brush for abutting against the side surface of the bearing is installed on one side of the oil distribution ring, and the oil brush is located directly below the lower end of the oil supply pipe.

[0016] Compared with the prior art, the utility model has at least the following beneficial effects:

[0017] In the above scheme, thanks to the cooperation of the main shaft, the detection ring, the detection protrusion, the rotating speed sensor, the oil storage tank, the oil supply pipe and the control valve, the oil supply amount can be controlled by detecting the rotating efficiency of the main shaft, accurate lubrication can be realized, the waste and deficiency of lubricating oil are avoided, the main shaft and the bearing can be properly lubricated in different working states, and the service life of the components is prolonged.

[0018] In the above scheme, thanks to the uniform oil distribution structure provided on the main shaft, more uniform lubrication can be achieved, the risk of local wear and overheating can be reduced, and the working efficiency and service life of the main shaft and the bearing can be improved by providing stable lubricating oil supply.

[0019] In summary, the device can automatically supply the appropriate amount of lubricating oil according to the working state of the main shaft, which is beneficial to improve the service life of the equipment, and can avoid the problem of too much or too little lubricating oil, and the overall use effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the application and, together with the description, further serve to explain the principles of the application and to enable a person skilled in the relevant art to implement and use the application.

[0021] Figure 1 is a structural schematic view of a grinding machine mechanism for a main shaft;

[0022] Figure 2 is a self-lubricating structure schematic view of a main shaft;

[0023] Figure 3 is a structural schematic view of a main shaft;

[0024] Figure 4 is a structural schematic view of a main shaft in the second embodiment;

[0025] Figure 5 is a structural schematic view of an oil distribution ring in the second embodiment.

[0026] [REFERENCE NUMERALS]

[0027] 1, grinding machine; 2, machine shell; 3, main shaft; 301, annular oil supply groove; 4, bearing; 5, oil storage tank; 501, oil supply pipe; 502, control valve; 6, detection ring; 601, detection bump; 7, rotational speed sensor; 8, recovery groove; 801, recovery pipe; 9, oil distribution ring; 901, oil brush.

[0028] As shown in the drawings, in order to clearly realize the structure of the embodiments of the present application, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the present application in this specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0029] The utility model provides a grinding machine mechanism for main shaft is described in detail below combining with the drawings and specific embodiment. Meanwhile, it is explained here, in order to make the embodiment more detailed, the following embodiment is best, preferred embodiment, and some public known technology skilled in the art can also be implemented by other alternative ways, and the part of the drawings is only for more specific description of the embodiment, and does not aim at the specific limitation of the utility model.

[0030] It should be noted that the description of the embodiments in the specification can include specific features, structures or characteristics, but not necessarily every embodiment includes the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in combination with an embodiment, it should be within the knowledge of the skilled in the art to realize such feature, structure or characteristic in combination with other embodiments, whether or not explicitly described.

[0031] Generally, the term can be understood at least partly from the use in the context. For example, depending at least partly on the context, the term "one or more" used herein can be used to describe any feature, structure or characteristic in the singular sense or can be used to describe a combination of features, structures or characteristics in the plural sense. In addition, the term "based on" can be understood as not necessarily conveying a set of exclusive factors, but can instead allow the existence of other factors not necessarily explicitly described, at least partly depending on the context.

[0032] It can be understood that the meaning of "on", "above" and "above" in the utility model should be interpreted in the broadest way, so that "on" not only means "directly on" something, but also includes the meaning of "on" something with intervening characteristics or layers, and "above" or "above" not only means "above" or "above" something, but also can include the meaning of "above" or "above" something without intervening characteristics or layers.

[0033] In addition, spatially relative terms such as "below", "lower", "below", "above", "upper" and the like can be used herein for the convenience of description to describe the relationship between one element or feature and another element or feature, as shown in the drawings. The spatially relative terms are intended to cover different orientations in the use or operation of the device in addition to the orientation depicted in the drawings. The device can be oriented in another way, and the spatially relative description used herein can be similarly interpreted accordingly.

[0034] Embodiment one:

[0035] As Figure 1 ,Figure 2 With Figure 3 As shown in the utility model discloses an embodiment provides a kind of grinder mechanism for main shaft, including grinder 1, the machine shell 2 is provided on the grinder 1, the main shaft 3 is installed in the machine shell 2, the bearing 4 is cooperated with on the main shaft 3, and the main shaft 3 is stretched out from the machine shell 2, and the bearing 4 is located in the machine shell 2.

[0036] Wherein, the main shaft 3 is fixed with detection ring 6 on the section in the machine shell 2, the edge of the detection ring 6 is provided with detection lug 601, the top of the machine shell 2 is provided with rotational speed sensor 7 at the rotating track of the detection lug 601, the rotational speed sensor 7 is photoelectric sensor, and the photoelectric emission end and receiving end of the rotational speed sensor 7 are located on the two sides of the movement track of the detection lug 601 respectively.In other embodiments, the rotational speed sensor 7 can also use other non-contact sensors, such as magnetic sensor.

[0037] Meanwhile, the upper end surface of the machine shell 2 is installed with oil storage tank 5, the bottom of the oil storage tank 5 is fixed with oil supply pipe 501, the lower end of the oil supply pipe 501 is stretched to the contact position of the main shaft 3, the oil supply pipe 501 is provided with control valve 502, and the control valve 502 is electrically connected with the rotational speed sensor 7.

[0038] Specifically, the control valve 502 is flow regulating valve, and the rotational speed sensor 7 is electrically connected with the control valve 502 through control unit, and the control unit receives the rotating speed signal transmitted by the rotational speed sensor 7, and calculates the corresponding oil supply amount according to the preset algorithm, to control the oil supply amount through the control valve 502.

[0039] In the embodiment, the above-mentioned preset algorithm can be linear interpolation algorithm, piecewise function algorithm or formula-based empirical algorithm.In the embodiment, piecewise function algorithm is used, and the relationship between rotational speed and oil supply amount can be realized by defining piecewise function, which will not be described in detail here.Moreover, the above-mentioned control unit is used to adjust the flow of oil supply pipe 501 according to the rotating speed of main shaft 3, to ensure that appropriate lubrication can be provided under different working conditions, which can be realized by various ways, such as using microcontroller, PLC (Programmable Logic Controller) or other dedicated control equipment.

[0040] In addition, the bottom of the machine shell 2 is fixed with recovery groove 8, the recovery groove 8 is located directly below the bearing 4, and the recovery groove 8 is connected with recovery pipe 801, and the recovery pipe 801 is stretched out from the machine shell 2.

[0041] In the first embodiment, the installation position of the bearing 4 on the main shaft 3 is also provided with a uniform oil distribution structure. The uniform oil distribution structure is an annular oil supply groove 301 arranged at the contact position of the main shaft 3 and the bearing 4.

[0042] Embodiment two:

[0043] As Figure 4 With Figure 5 The second embodiment provides a grinding mechanism for a main shaft, which is different from the first embodiment in that:

[0044] The uniform oil distribution structure on the main shaft 3 is an oil distribution ring 9 fixed on the main shaft 3, one side of the oil distribution ring 9 is provided with an oil brush 901 for abutting the side surface of the bearing 4, and the oil brush 901 is located directly below the lower end of the oil supply pipe 501. Therefore, when the oil supply pipe 501 supplies lubricating oil, the lubricating oil can drop on the oil brush 901, and the oil distribution ring 9 can be uniformly brushed on the bearing 4 by rotating with the main shaft 3, thereby improving the uniformity of lubrication.

[0045] The working principle of the utility model provides a grinding mechanism for a main shaft, in use, the main shaft 3 rotates and drives the detection ring 6 to rotate, at this time, the rotation speed sensor 7 detects (701) the frequency between the photoelectric emission end and the receiving end, and detects the rotation efficiency of the main shaft 3.

[0046] Meanwhile, the rotation speed sensor 7 calculates the appropriate oil supply amount according to the preset algorithm through the control unit, and controls the control valve 502 to adjust the oil supply amount of the oil supply pipe 501, so as to realize accurate lubrication, avoid waste and deficiency of lubricating oil, and make the main shaft and the bearing can obtain appropriate lubricating oil under different working conditions, thereby prolonging the service life of the parts.

[0047] Specifically, when the rotation speed of the main shaft is low, it means that the load is relatively small, and the required amount of lubricating oil is also small. The control unit sends a signal to the control valve 502 according to the preset rotation speed-oil supply table (for example, when the rotation speed of the main shaft is 1000-2000 revolutions per minute, the oil supply amount is 5-10 milliliters per minute; when the rotation speed is 2000-3000 revolutions per minute, the oil supply amount is 10-15 milliliters per minute, etc.), and adjusts the opening size of the oil supply pipe, so as to accurately control the oil supply amount.

[0048] In addition, the device can realize more uniform lubrication by providing a uniform oil distribution structure on the main shaft 3, reduce the risk of local wear and overheating, and improve the working efficiency and service life of the main shaft 3 and the bearing 4 by providing stable lubricating oil supply.

[0049] To sum up, the device can automatically supply appropriate amount of lubricating oil according to the working state of the main shaft, which is favorable for prolonging the service life of the equipment, and can avoid the problems of too much or too little lubricating oil, and has good overall use effect.

[0050] The utility model covers any alternative, modification, equivalent method and scheme which is made on the essence and range of the utility model. In order to make the public have the thorough understanding of the utility model, the specific details are explained in the following preferred embodiment of the utility model, and the utility model can be completely understood without the description of these details for the person skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the utility model, the well-known method, process, flow, element and circuit etc. are not explained in detail.

[0051] The above only is the preferred implementation mode of the utility model, should point out, for ordinary skill in the art of the present technology, on the premise of not departing from the principle of the utility model, can also make a number of improvements and refinements, these improvements and refinements also should be regarded as the protection range of the utility model.

Claims

1. A grinding mechanism for a main shaft, comprising a grinder (1), a machine shell (2) is arranged on the grinder (1), a main shaft (3) is installed in the machine shell (2), a bearing (4) is matched with the main shaft (3), and the main shaft (3) extends out of the machine shell (2), and the bearing (4) is located in the machine shell (2), characterized in that: a detection ring (6) is further fixed on a section of the main shaft (3) located in the machine shell (2), a detection protrusion (601) is arranged at the edge of the detection ring (6), a rotating speed sensor (7) is arranged at the top of the machine shell (2) corresponding to the rotating track of the detection protrusion (601), an oil storage tank (5) is installed on the upper end surface of the machine shell (2), an oil supply pipe (501) is fixed at the bottom of the oil storage tank (5), the lower end of the oil supply pipe (501) extends to the contact position of the main shaft (3), a control valve (502) is arranged on the oil supply pipe (501), and the control valve (502) is electrically connected with the rotating speed sensor (7). A recovery groove (8) is fixed at the bottom of the machine shell (2), the recovery groove (8) is located directly below the bearing (4), and a recovery pipe (801) is connected with the recovery groove (8) and extends out of the machine shell (2).

2. A grinding machine mechanism for a main shaft according to claim 1, characterized by, The rotating speed sensor (7) is an optical sensor, and the optical emission end and the receiving end of the rotating speed sensor (7) are located on the two sides of the movement track of the detection protrusion (601) respectively.

3. The grinder mechanism for a main shaft according to claim 1, characterized by, The control valve (502) is a flow regulating valve, the rotating speed sensor (7) is electrically connected with the control valve (502) through a control unit, the control unit receives the rotating speed signal transmitted by the rotating speed sensor (7), calculates the corresponding oil supply amount according to a preset algorithm, and controls the oil supply amount through the control valve (502).

4. A grinding machine mechanism for a main shaft according to claim 3, characterized by, A uniform oil distribution structure is further arranged on the main shaft (3) corresponding to the mounting position of the bearing (4).

5. The grinder mechanism for a spindle according to claim 1, wherein The uniform oil distribution structure on the main shaft (3) is an annular oil supply groove (301) arranged at the contact position of the main shaft (3) and the bearing (4).

6. A grinding machine mechanism for a main shaft according to claim 5, characterized by The uniform oil distribution structure on the main shaft (3) is an oil distribution ring (9) fixed on the main shaft (3), an oil brush (901) for abutting against the side surface of the bearing (4) is installed on one side of the oil distribution ring (9), and the oil brush (901) is located directly below the lower end of the oil supply pipe (501).

7. The grinder mechanism for a spindle according to claim 5, wherein ​

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