Bearing heating measuring device

Abstract

The embodiment of the invention provides a bearing heating measuring device, and relates to the field of equipment detection. The bearing heating measurement device comprises a driving mechanism, a driven mechanism, a loading mechanism and a temperature acquisition mechanism, wherein the driven mechanism comprises a driven base, a driven main shaft, a driven bearing seat and a driven bearing, the driven main shaft is in transmission connection with the driving mechanism, the driven bearing seat is installed on the driven base and used for supporting the driven bearing, the driven bearing is arranged on the driven main shaft in a sleeving mode, and the loading mechanism abuts against the side wall of the driven main shaft. The temperature acquisition mechanism is used for acquiring temperature information of the passive bearing seat. In the working process, the driving mechanism is used for providing driving force to drive the driven main shaft to rotate, the driven main shaft drives the driven bearing to work, and the loading mechanism is used for applying load to the driven main shaft and obtaining temperature information of the driven bearing seat through the temperature collecting mechanism. Therefore, the calorific value of the passive bearing with the load can be tested.

Description

Technical Field

[0001] The invention relates to the field of equipment detection, and in particular to a bearing heating measurement device. Background Art

[0002] During the high-speed operation of the electric spindle, its motor and bearings will generate heat. When the heat is too high, it will have a negative impact on the operation of the electric spindle.

[0003] Existing measuring devices usually perform heat tests on bearings, but the heat generation will change due to changes in load, so it is not convenient to test the heat generation of bearings under load. Summary of the invention

[0004] The invention provides a bearing heating measurement device, which can test the heat under load.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] An embodiment of the present invention provides a bearing heat measurement device, which includes:

[0007] Driving mechanism, passive mechanism, loading mechanism and temperature collection mechanism;

[0008] Among them, the passive mechanism includes a passive base, a passive spindle, a passive bearing seat and a passive bearing, the passive spindle is transmission-connected to the driving mechanism, the passive bearing seat is installed on the passive base and is used to support the passive bearing, the passive bearing is sleeved on the passive spindle, the loading mechanism is against the side wall of the passive spindle, and the temperature collection mechanism is used to collect temperature information of the passive bearing seat.

[0009] Optionally, the loading mechanism includes a loading frame, an adjusting rod, a pressure sensor, an extension rod and a loading wheel, the adjusting rod is telescopically connected to the loading frame, the adjusting rod, the pressure sensor, the extension rod and the loading wheel are connected in sequence, and the loading wheel is abutted against the side wall of the passive spindle.

[0010] Optionally, the loading frame includes a frame base, a first frame arm and a second frame arm, the first frame arm and the second frame arm are both connected to the top surface of the frame base and are spaced apart, the adjustment rod is telescopically connected to the first frame arm, the extension rod is passed through the second frame arm, the pressure sensor is located between the first frame arm and the second frame arm, and the outer diameter of the pressure sensor is simultaneously larger than the outer diameter of the through hole on the first frame arm and the outer diameter of the through hole on the second frame arm.

[0011] Optionally, the loading mechanism further includes a locking member, wherein the locking member is connected to the adjusting rod and abuts against a side of the first frame arm away from the second frame arm.

[0012] Optionally, the loading mechanism further comprises a wheel frame, which is rotatably connected to an end of the extension rod away from the adjustment rod and is used to drive the loading wheel to rotate.

[0013] Optionally, the passive bearing seat is provided with a passive cooling water channel, and the temperature acquisition mechanism includes a first temperature sensor and a second temperature sensor, and the first temperature sensor and the second temperature sensor are respectively used to output the inlet temperature and outlet temperature of the passive cooling water channel.

[0014] Optionally, the passive mechanism further includes a pre-tightening sleeve and a pre-tightening spring, wherein the pre-tightening sleeve is installed on the passive bearing seat and abuts against the passive bearing, and the pre-tightening spring abuts between the pre-tightening sleeve and the passive bearing seat.

[0015] Optionally, the temperature acquisition mechanism includes a third temperature sensor, and the third temperature sensor is used to output a temperature representing the temperature of the passive bearing;

[0016] And / or, the temperature acquisition mechanism includes a fourth temperature sensor, and the fourth temperature sensor is used to output a temperature representing the temperature of the passive base.

[0017] Optionally, the driving mechanism includes a driving base, a driving spindle, a driving bearing seat and a driving bearing, the driving spindle is drivingly connected to the passive spindle, and the driving bearing seat is installed on the driving base and is used to support the driving bearing.

[0018] Optionally, the drive bearing seat is provided with a drive cooling water channel, and the temperature collection mechanism includes a fifth temperature sensor and a sixth temperature sensor, and the fifth temperature sensor and the sixth temperature sensor are respectively used to output the inlet temperature and the outlet temperature of the drive cooling water channel.

[0019] The beneficial effects of the bearing heat measurement device according to the embodiment of the present invention include, for example:

[0020] The bearing heating measurement device includes a driving mechanism, a passive mechanism, a loading mechanism and a temperature collection mechanism; wherein the passive mechanism includes a passive base, a passive spindle, a passive bearing seat and a passive bearing, the passive spindle is connected to the driving mechanism by transmission, the passive bearing seat is installed on the passive base and used to support the passive bearing, the passive bearing is sleeved on the passive spindle, the loading mechanism is against the side wall of the passive spindle, and the temperature collection mechanism is used to collect temperature information of the passive bearing seat. During operation, the driving mechanism is used to provide driving force to drive the passive spindle to rotate, and the passive bearing is driven to work through the passive spindle, the loading mechanism is used to apply a load to the passive spindle, and the temperature information of the passive bearing seat is obtained through the temperature collection mechanism, so as to test the heat generation of the passive bearing under load. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a cross-sectional schematic diagram of a bearing heat measurement device provided in an embodiment of the present invention at a first viewing angle;

[0023] Figure 2 It is a cross-sectional schematic diagram of the bearing heat measurement device provided in an embodiment of the present invention at a second viewing angle;

[0024] Figure 3 It is a structural schematic diagram of a passive mechanism provided in an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of the structure of a driving mechanism provided in an embodiment of the present invention;

[0026] Figure 5 It is a schematic diagram of the internal structure of the bearing heat measurement device provided in an embodiment of the present invention.

[0027] Icons: 100-bearing heat measurement device; 110-driving mechanism; 111-driving base; 112-driving spindle; 113-driving bearing seat; 1131-driving cooling water channel; 114-driving bearing; 120-passive mechanism; 121-passive base; 122-passive spindle; 123-passive bearing seat; 1231-passive cooling water channel; 124-passive bearing; 125-preload spacer; 126-preload spring; 130-loading mechanism; 131-loading frame; 1311-frame seat; 1312-first frame arm; 1313 - second arm; 132 - adjustment rod; 133 - pressure sensor; 134 - extension rod; 135 - loading wheel; 136 - locking piece; 137 - wheel frame; 140 - temperature collection mechanism; 141 - first temperature sensor; 142 - second temperature sensor; 143 - third temperature sensor; 144 - fourth temperature sensor; 145 - fifth temperature sensor; 146 - sixth temperature sensor; 147 - seventh temperature sensor; 148 - eighth temperature sensor; 150 - base; 160 - outer box. DETAILED DESCRIPTION

[0028] In order to make the purpose, 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 in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0033] The terms "comprises," "comprising," or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0034] Unless otherwise clearly specified and limited, the terms "disposed", "connected" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0036] Please refer to Figure 1 , Figure 2 and Figure 5 The bearing heat measurement device 100 provided in the embodiment of the present invention can solve the above problems, which will be described in detail below.

[0037] The bearing heat measurement device 100 includes a driving mechanism 110, a passive mechanism 120, a loading mechanism 130 and a temperature collection mechanism 140; wherein the passive mechanism 120 includes a passive base 121, a passive spindle 122, a passive bearing seat 123 and a passive bearing 124, the passive spindle 122 is transmission-connected to the driving mechanism 110, the passive bearing seat 123 is installed on the passive base 121 and is used to support the passive bearing 124, the passive bearing 124 is sleeved on the passive spindle 122, the loading mechanism 130 is against the side wall of the passive spindle 122, and the temperature collection mechanism 140 is used to collect temperature information of the passive bearing seat 123.

[0038] During the operation, the driving mechanism 110 is used to provide driving force to drive the passive main shaft 122 to rotate, and the passive bearing 124 is driven to work through the passive main shaft 122. The loading mechanism 130 is used to apply a load to the passive main shaft 122, and obtain the temperature information of the passive bearing seat 123 through the temperature collection mechanism 140, so as to test the heat generation of the passive bearing 124 under load.

[0039] It is worth noting that in order to prevent heat from being conducted between the passive spindle 122 and the drive mechanism 110 , a high-speed coupling may be provided at the connection between the two. The high-speed coupling is made of polymer thermal insulation material to block heat from being conducted toward the drive mechanism 110 .

[0040] Furthermore, in order to support each mechanism, the calorific value test device may further include a base 150, and each mechanism may be movably mounted on the base 150 for convenient position adjustment. At the same time, the base 150 may also be equipped with a heat insulation pad to prevent heat from being conducted toward the base 150.

[0041] In addition, in order to isolate the ambient heat, the bearing heat measurement device 100 may further include an outer box 160, and the outer box 160 may be evacuated. The thermal conductivity in a vacuum environment is greatly reduced, and the heat loss or heat exchange heat of the device affects the heat of the device.

[0042] refer to Figure 2 The loading mechanism 130 includes a loading frame 131, an adjusting rod 132, a pressure sensor 133, an extension rod 134 and a loading wheel 135. The adjusting rod 132 is telescopically connected to the loading frame 131. The adjusting rod 132, the pressure sensor 133, the extension rod 134 and the loading wheel 135 are connected in sequence. The loading wheel 135 is against the side wall of the passive spindle 122.

[0043] During operation, the loading frame 131 plays a supporting role, and the adjusting rod 132 is used to telescopically move relative to the loading frame 131 under the action of external force to squeeze the pressure sensor 133, the extension rod 134 and the loading wheel 135, and apply a load to the passive spindle 122 through the loading wheel 135. During the rotation of the passive spindle 122, the loading wheel 135 rotates relative to the passive spindle 122, thereby not hindering the rotation of the passive spindle 122 while applying the load.

[0044] Specifically, the loading frame 131 includes a frame base 1311, a first frame arm 1312 and a second frame arm 1313. The first frame arm 1312 and the second frame arm 1313 are both connected to the top surface of the frame base 1311 and are spaced apart. The adjusting rod 132 is telescopically connected to the first frame arm 1312. The extension rod 134 is passed through the second frame arm 1313. The pressure sensor 133 is located between the first frame arm 1312 and the second frame arm 1313. The outer diameter of the pressure sensor 133 is larger than the outer diameter of the through hole on the first frame arm 1312 and the outer diameter of the through hole on the second frame arm 1313. By locating the pressure sensor 133 between the first arm and the second arm, the two arms can limit the pressure sensor 133 to avoid the pressure sensor 133 and the extension rod 134 from being misplaced when the external force is too large.

[0045] Furthermore, in order to limit and lock the adjustment rod 132 , the loading mechanism 130 may further include a locking member 136 . The locking member 136 is connected to the adjustment rod 132 and abuts against a side of the first arm 1312 away from the second arm 1313 .

[0046] In this embodiment, the adjustment rod 132 is a bolt or a screw, the through hole on the first arm 1312 is provided with an internal thread, and the locking member 136 is a nut.

[0047] refer to Figure 2 When the direction of the loading wheel 135 is relatively fixed, a load in a fixed direction can be applied to the passive spindle 122; and in order to verify the influence of loads in different directions, the loading mechanism 130 can also include a wheel frame 137, which is rotatably connected to one end of the extension rod 134 away from the adjustment rod 132 and is used to drive the loading wheel 135 to rotate.

[0048] refer to Figure 3 In order to improve the cooling effect of the passive bearing 124 and facilitate the acquisition of relevant parameters of the heat generation, the passive bearing seat 123 can be provided with a passive cooling water channel 1231, and the temperature collection mechanism 140 includes a first temperature sensor 141 and a second temperature sensor 142. The first temperature sensor 141 and the second temperature sensor 142 are respectively used to output the inlet temperature and outlet temperature of the passive cooling water channel 1231.

[0049] Specifically, the heat generated by the passive bearing 124 can be calculated according to the formula Q1=c*ρ*q1*(T2-T1) / n1, wherein c is the specific heat capacity of the cooling water, ρ is the density of the cooling water, q1 is the cooling water flow rate in the passive cooling water channel 1231, T2 is the outlet temperature of the passive cooling water channel 1231, T1 is the inlet temperature of the passive cooling water channel 1231, and n1 is the number of passive bearings 124 mounted on the same passive spindle 122.

[0050] refer to Figure 3 In order to facilitate the adjustment of the preload force of the passive bearing 124, the passive mechanism 120 may further include a preload sleeve 125 and a preload spring 126. The preload sleeve 125 is installed on the passive bearing seat 123 and is supported against the passive bearing 124. The preload spring 126 is supported between the preload sleeve 125 and the passive bearing seat 123.

[0051] In this embodiment, the pre-tensioning spacer 125 is annular in structure, and a plurality of mounting holes are opened along a ring on one side of the pre-tensioning spacer 125. The pre-tensioning springs 126 are accommodated in the mounting holes. The number of assembled pre-tensioning springs 126 can be changed, thereby realizing the adjustment of the pre-tensioning force of the passive spindle 122.

[0052] refer to Figure 5 In order to further improve the accuracy of heat collection, the temperature collection mechanism 140 may include a third temperature sensor 143, which is used to output a temperature representing the passive bearing 124; the temperature collection mechanism 140 may also include a fourth temperature sensor 144, which is used to output a temperature representing the passive base 121.

[0053] Specifically, corresponding reserved holes may be opened on the passive bearing seat 123 to facilitate the collection ends of the third temperature sensor 143 and the fourth temperature sensor 144 to pass through and contact the passive bearing 124 and the passive base 121 respectively to achieve temperature collection operation.

[0054] refer to Figure 4 The structure of the driving mechanism 110 is similar to that of the passive mechanism 120. The driving mechanism 110 includes a driving base 111, a driving spindle 112, a driving bearing seat 113 and a driving bearing 114. The driving spindle 112 is transmission-connected to the passive spindle 122. The driving bearing seat 113 is installed on the driving base 111 and is used to support the driving bearing 114.

[0055] In addition, the driving bearing seat 113 is provided with a driving cooling water channel 1131 , and the temperature collection mechanism 140 includes a fifth temperature sensor 145 and a sixth temperature sensor 146 , and the fifth temperature sensor 145 and the sixth temperature sensor 146 are respectively used to output the inlet temperature and the outlet temperature of the driving cooling water channel 1131 .

[0056] Specifically, the total heat generation of the drive spindle 112 can be calculated according to the formula Q2=c*ρ*q2*(T4-T3), wherein c is the specific heat capacity of the cooling water, ρ is the density of the cooling water, q2 is the cooling water flow rate in the drive cooling water channel 1131, T4 is the outlet temperature of the drive cooling water channel 1131, and T3 is the inlet temperature of the drive cooling water channel 1131.

[0057] Furthermore, the heat generated by the driving power source for driving the driving main shaft 112 to rotate can be calculated according to the formula Q3=Q2-n2*Q1, where n2 is the number of driving bearings 114 sleeved on the driving main shaft 112. In this embodiment, the driving power source is preferably a driving motor.

[0058] refer to Figure 5 In order to further improve the accuracy of heat collection, the temperature collection mechanism 140 may include a seventh temperature sensor 147 and an eighth temperature sensor 148. The seventh temperature sensor 147 is used to output the temperature of the drive bearing 114, and the eighth temperature sensor 148 is used to output the temperature of the drive base 111.

[0059] Similarly, corresponding reserved holes can be opened on the driving bearing seat 113 to facilitate the collection ends of the seventh temperature sensor 147 and the eighth temperature sensor 148 to pass through and contact the driving bearing 114 and the driving base 111 respectively to achieve temperature collection operations.

[0060] In summary, the operating method of the calorific value measuring device provided in the embodiment of the present invention specifically includes the following steps:

[0061] The driving mechanism 110 is started to drive the passive spindle 122 to rotate, and the load mechanism is controlled to apply a load to the passive spindle 122, and the load information is output and expressed, and then the temperature collection mechanism 140 collects temperature information and outputs an expression to calculate the heat generated by the driving spindle 112 or the passive spindle 122.

[0062] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A bearing heat measurement device, characterized in that: include: A driving mechanism (110), a passive mechanism (120), a loading mechanism (130), and a temperature collecting mechanism (140); The passive mechanism (120) comprises a passive base (121), a passive spindle (122), a passive bearing seat (123) and a passive bearing (124); the passive spindle (122) is transmission-connected to the driving mechanism (110); the passive bearing seat (123) is mounted on the passive base (121) and is used to support the passive bearing (124); the passive bearing (124) is sleeved on the passive spindle (122); the loading mechanism (130) is abutted against the side wall of the passive spindle (122); and the temperature collection mechanism (140) is used to collect temperature information of the passive bearing seat (123).

2. The bearing heat measurement device according to claim 1, characterized in that: The loading mechanism (130) comprises a loading frame (131), an adjusting rod (132), a pressure sensor (133), an extension rod (134) and a loading wheel (135); the adjusting rod (132) is telescopically connected to the loading frame (131); the adjusting rod (132), the pressure sensor (133), the extension rod (134) and the loading wheel (135) are connected in sequence; and the loading wheel (135) is abutted against a side wall of the passive spindle (122).

3. The bearing heat measurement device according to claim 2, characterized in that: The loading frame (131) comprises a frame seat (1311), a first frame arm (1312) and a second frame arm (1313); the first frame arm (1312) and the second frame arm (1313) are both connected to the top surface of the frame seat (1311) and are arranged at intervals; the adjustment rod (132) is telescopically connected to the first frame arm (1312); the extension rod (134) is passed through the second frame arm (1313); the pressure sensor (133) is located between the first frame arm (1312) and the second frame arm (1313); and the outer diameter of the pressure sensor (133) is larger than the outer diameter of the through hole on the first frame arm (1312) and the outer diameter of the through hole on the second frame arm (1313).

4. The bearing heat measurement device according to claim 3, characterized in that: The loading mechanism (130) further comprises a locking member (136), wherein the locking member (136) is connected to the adjusting rod (132) and abuts against a side of the first arm (1312) away from the second arm (1313).

5. The bearing heat measurement device according to claim 2, characterized in that: The loading mechanism (130) further comprises a wheel frame (137), wherein the wheel frame (137) is rotatably connected to an end of the extension rod (134) away from the adjustment rod (132), and is used to drive the loading wheel (135) to rotate.

6. The bearing heat measurement device according to claim 1, characterized in that: The passive bearing seat (123) is provided with a passive cooling water channel (1231), and the temperature collection mechanism (140) comprises a first temperature sensor (141) and a second temperature sensor (142), wherein the first temperature sensor (141) and the second temperature sensor (142) are respectively used to output an inlet temperature and an outlet temperature of the passive cooling water channel (1231).

7. The bearing heat measurement device according to claim 1, characterized in that: The passive mechanism (120) further comprises a preload sleeve (125) and a preload spring (126); the preload sleeve (125) is mounted on the passive bearing seat (123) and abuts against the passive bearing (124); the preload spring (126) abuts between the preload sleeve (125) and the passive bearing seat (123).

8. The bearing heat measurement device according to claim 1, characterized in that: The temperature collection mechanism (140) comprises a third temperature sensor (143), and the third temperature sensor (143) is used to output a temperature representing the temperature of the passive bearing (124); And / or, the temperature collection mechanism (140) comprises a fourth temperature sensor (144), and the fourth temperature sensor (144) is used to output a temperature representing the temperature of the passive base (121).

9. The bearing heat measurement device according to claim 1, characterized in that: The driving mechanism (110) comprises a driving base (111), a driving main shaft (112), a driving bearing seat (113) and a driving bearing (114); the driving main shaft (112) is drivingly connected to the passive main shaft (122); the driving bearing seat (113) is mounted on the driving base (111) and is used to support the driving bearing (114).

10. The bearing heat measurement device according to claim 9, characterized in that: The driving bearing seat (113) is provided with a driving cooling water channel (1131), and the temperature collection mechanism (140) includes a fifth temperature sensor (145) and a sixth temperature sensor (146), and the fifth temperature sensor (145) and the sixth temperature sensor (146) are respectively used to output an inlet temperature and an outlet temperature of the driving cooling water channel (1131).

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