Multifunctional measuring equipment for main bearing of RV speed reducer

Abstract

The utility model provides a multifunctional measuring device for a main bearing of an RV speed reducer. The multifunctional measuring device for the main bearing of the RV speed reducer comprises a base, a clamping assembly, a load ring, a detection frame and a rotating mechanism. The RV speed reducer main bearing multifunctional measuring device provided by the utility model can simulate the axial stress of the bearing through the load ring, and apply a starting torque to the bearing through the rotating mechanism. The value of the top of the load ring is detected again through the detection meter, and when the secondary detection value is larger than the primary detection value, the height of the second load ring is larger than that of the first load ring, and the second load ring is an axial clearance capable of generating looseness. And when the secondary detection numerical value is smaller than the primary detection numerical value, the height of the secondary loading ring is smaller than that of the primary loading ring, and the axial pre-tightening clearance is obtained. According to the equipment, the operation environment of the bearing can be directly simulated, so that repeated disassembly and assembly of the bearing are avoided, the labor force of operators is reduced, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing detection equipment, and particularly relates to a multi-functional measuring device for the main bearing of an RV reducer. Background Art

[0002] RV reducers are widely used in industrial robots, automation equipment, machine tools and other fields. RV reducers usually have two types: angular contact bearings and tapered roller bearings, both of which are in a back-to-back combination form. The main characteristics of the main bearing of an RV reducer are that it can bear large loads, so as to ensure sufficient rigidity and high positioning accuracy. During the production process of bearings, when high rigidity is required, axial preloading is needed. The magnitude of the axial preloading force is determined by the axial clearance of the bearing. The larger the axial clearance of the bearing, the greater the preloading force. Although the rigidity is qualified, the starting torque of the bearing also increases with the increase of the preloading force, resulting in unqualified starting torque. The clearance of the bearing is usually adjusted by controlling the height difference between the inner spacer and the outer spacer between the two bearings. When detecting the clearance of the bearing, the bearing usually needs to be installed in a simulated environment for detection, and during the detection process, the bearing needs to be disassembled and assembled repeatedly. The operation process is relatively complex and the debugging efficiency is low. Summary of the Utility Model

[0003] An embodiment of the utility model provides a multi-functional measuring device for the main bearing of an RV reducer, aiming to solve the problem that the operation is relatively complex and affects the detection efficiency when detecting the clearance of back-to-back bearings in the prior art.

[0004] To achieve the above object, the technical solution adopted by the utility model is: to provide a multi-functional measuring device for the main bearing of an RV reducer, including:

[0005] A base;

[0006] A clamping assembly, installed on the base, for fixing the inner ring or outer ring of the bearing to the base;

[0007] A load ring, detachably installed on the inner ring of the bearing and lapping on the top surface of the bearing, for applying gravity to the bearing;

[0008] A detection frame, installed on the base, and a detection meter for detecting the value of the top surface of the load ring is installed on the detection frame;

[0009] A rotating mechanism, installed on the base and connected to the load ring, for driving the load ring to rotate.

[0010] In a possible implementation manner, the rotating mechanism includes:

[0011] A pulling rope, wound around the outside of the load ring, for pulling the load ring to rotate;

[0012] The guide wheel is rotatably arranged on one side of the base, and the pulling rope is lapped on the outer side of the guide wheel;

[0013] The gravity block is installed at one end of the pulling rope away from the load ring and is used to apply a pulling force to the pulling rope.

[0014] In a possible implementation manner, a guiding portion that is slidably matched with the inner ring of the bearing is convexly arranged on one end face of the load ring.

[0015] In a possible implementation manner, the clamping assembly includes:

[0016] There are multiple clamping blocks, and the multiple clamping blocks form an annular clamping position for clamping the bearing, and the positions of the multiple clamping blocks on the base have the freedom to be adjusted radially along the annular clamping position.

[0017] In a possible implementation manner, the clamping block includes a sliding portion slidably arranged on the base and a clamping portion fixedly installed on the sliding portion, and an installation groove for placing the inner ring or outer ring of the bearing is formed between the sliding portion and the clamping portion.

[0018] In a possible implementation manner, a fixing component for fixing the clamping block to the base is further arranged between the clamping block and the base, and the fixing component includes:

[0019] The fixing rod penetrates through the clamping block, a limiting block is arranged at one end of the fixing rod, and a sliding groove for accommodating the limiting block is arranged on the base;

[0020] The tightening member is in threaded connection with the fixing rod and is used to fix the clamping block to the base.

[0021] In a possible implementation manner, a vertical rod is fixedly installed on the base, the length direction of the vertical rod is arranged along the vertical direction, the detection frame is installed on the vertical rod, and the position of the detection frame on the vertical rod has the freedom to be adjusted along the vertical direction.

[0022] In a possible implementation manner, the multi-functional measuring device for the main bearing of the RV reducer further includes a detection cover detachably installed on the outer ring of the bearing, and an installation hole that is slidably matched with the outer ring of the bearing is arranged on the detection cover.

[0023] The solution shown in the embodiments of this application, compared with the prior art, is provided with a base, on which a clamping assembly for fixing the inner or outer ring of a bearing is installed, and a load ring is provided to simulate the axial force. A detection frame is also installed on the base, and a detection gauge for detecting the height of the top surface of the load ring is installed on the detection frame. And a rotating mechanism for simulating the starting torque is installed on the base, and the rotating mechanism is used to drive the load ring to rotate. In this application, when detecting a bearing, the inner ring of the lower bearing can be fixed to the base through the clamping assembly. An outer ring is installed above the lower bearing, and the outer ring abuts against the end face of the outer ring of the lower bearing. Then a bearing is installed on the top of the outer ring, so that the outer ring of the upper bearing abuts against the top of the outer ring, and the load ring is installed on the upper bearing, so that the inner ring of the upper bearing is connected to the load ring. The axial force between the two bearings is simulated by the gravity of the load ring. Then the rotating mechanism is used to drive the load ring to rotate at the magnitude of the starting torque, and the load ring drives the inner ring of the upper bearing to rotate. After rotating several circles, when the bearing rotates smoothly, the value of the top of the load ring is recorded by the detection gauge on the detection frame. Then the outer ring between the two bearings is removed, and an inner ring is installed between the two bearings. Both ends of the inner ring abut against the inner rings of the upper and lower bearings respectively, and the value of the top of the load ring is detected again by the detection gauge. When the second detected value is greater than the first detected value, the height of the load ring in the second time is higher than that in the first time, which is the axial clearance that can cause looseness. When the second detected value is less than the first detected value, the height of the load ring in the second time is lower than that in the first time, which is the axial preloading clearance. Through the equipment in this application, the operating environment of the bearing can be directly simulated, thus avoiding repeated disassembly and assembly of the bearing, reducing the labor of the operator, and improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic structural diagram of the multi-functional measuring equipment for the main bearing of the RV reducer provided by the embodiment of the present utility model;

[0025] Figure 2 Schematic installation structure diagram of the outer ring provided by the embodiment of the present utility model;

[0026] Figure 3 Schematic installation structure diagram of the inner ring provided by the embodiment of the present utility model;

[0027] Figure 4 Schematic structural diagram for measuring the end face runout of the outer ring of the bearing provided by the embodiment of the present utility model;

[0028] Figure 5 Schematic structural diagram for measuring the end face runout of the inner ring of the bearing provided by the embodiment of the present utility model;

[0029] Figure 6 Schematic installation structure diagram of the clamping block provided by the embodiment of the present utility model.

[0030] Description of Reference Numerals:

[0031] 1. Base; 2. Clamping Assembly; 21. Clamping Block; 211. Clamping Portion; 212. Sliding Portion; 22. Fixing Assembly; 221. Fixing Rod; 222. Limiting Block; 223. Tightening Member; 3. Load Ring; 31. Guiding Portion; 4. Detection Frame; 41. Detection Gauge; 5. Rotating Mechanism; 51. Tensile Rope; 52. Guide Pulley; 53. Gravity Block; 6. Outer Ring; 7. Inner Ring; 8. Detection Cover; 9. Upright Rod. Detailed Implementation Manner

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0033] Please refer to together Figures 1 to 6 , and now the multi-functional measuring device for the main bearing of the RV reducer provided by the present utility model will be described. The multi-functional measuring device for the main bearing of the RV reducer includes a base 1, a clamping assembly 2, a load ring 3, a detection frame 4 and a rotating mechanism 5. The clamping assembly 2 is installed on the base 1 and is used to fix the inner ring or outer ring of the bearing to the base 1; the load ring 3 is detachably installed on the inner ring of the bearing and is lapped on the top surface of the bearing, and is used to apply gravity to the bearing; the detection frame 4 is installed on the base 1, and a detection gauge 41 for detecting the value on the top surface of the load ring 3 is installed on the detection frame 4; the rotating mechanism 5 is installed on the base 1 and is connected to the load ring 3, and is used to drive the load ring 3 to rotate.

[0034] The main bearing multi-functional measuring device provided by this embodiment, compared with the prior art, is provided with a base 1. A clamping component 2 for fixing the inner ring or outer ring of the bearing is installed on the base 1, and a load ring 3 is provided to simulate the axial force. A detection frame 4 is also installed on the base 1, and a detection gauge 41 for detecting the height of the top surface of the load ring 3 is installed on the detection frame 4. A rotating mechanism 5 for simulating the starting torque is also installed on the base 1, and the rotating mechanism 5 is used to drive the load ring 3 to rotate. In this application, when detecting the bearing, the inner ring of the lower bearing can be fixed to the base 1 through the clamping component 2. An outer ring 6 is installed above the lower bearing, and the outer ring 6 abuts against the end face of the outer ring of the lower bearing. Then a bearing is installed on the top of the outer ring 6, so that the outer ring of the upper bearing abuts against the top of the outer ring 6, and the load ring 3 is installed on the upper bearing, so that the inner ring of the upper bearing is connected to the load ring 3. The axial force between the two bearings is simulated by the gravity of the load ring 3. Then the rotating mechanism 5 is used to drive the load ring 3 to rotate at the magnitude of the starting torque, and the inner ring of the upper bearing is driven to rotate through the load ring 3. After rotating several circles, when the bearing rotates smoothly, the value at the top of the load ring 3 is recorded by the detection gauge 41 on the detection frame 4. Then the outer ring 6 between the two bearings is removed, and an inner ring 7 is installed between the two bearings. Both ends of the inner ring 7 respectively abut against the inner rings of the upper and lower bearings, and the load ring 3 is installed on the upper bearing. The value at the top of the load ring 3 is detected again by the detection gauge 41. When the second detection value is greater than the first detection value, the height of the second load ring 3 is higher than the height of the first load ring 3, which is the axial clearance that can cause loosening. When the second detection value is less than the first detection value, the height of the second load ring 3 is lower than the height of the first load ring 3, which is the axial preloading clearance. Through the device in this application, the operating environment of the bearing can be directly simulated, thereby avoiding repeated disassembly and assembly of the bearing, reducing the labor of the operator, and improving the detection efficiency.

[0035] Specifically, in this embodiment, when the outer ring 6 is installed between the two bearings and the load ring 3 is installed on the inner ring of the top bearing, the inner ring of the bearing can be driven to rotate by the rotating mechanism 5. During the rotation process, the load ring 3 can be manually pressed multiple times to stop it, so as to simulate whether each point of the bearing is uniform under the action of the starting torque and whether there are jamming points.

[0036] Specifically, in this embodiment, mounting grooves for installing the outer ring of the bearing are provided at both ends of the outer ring 6, and the outer ring of the bearing is slidably arranged inside the mounting grooves; the bottom of the mounting grooves abuts against the end face of the outer ring of the bearing. Thus, the stability of the relative position between the upper bearing and the lower bearing can be ensured when the load ring 3 rotates.

[0037] In some embodiments, the above-mentioned rotating mechanism 5 can adopt the structure as Figure 1 shown. See Figure 1, the rotating mechanism 5 includes a tension rope 51, a guide pulley 52 and a gravity block 53. The tension rope 51 is wound around the outer side of the load ring 3 and is used to pull the load ring 3 to rotate; the guide pulley 52 is rotatably arranged on one side of the base 1, and the tension rope 51 is lapped on the outer side of the guide pulley 52; the gravity block 53 is installed at one end of the tension rope 51 away from the load ring 3 and is used to apply a pulling force to the tension rope 51. A support base is installed on the base 1, and an installation part extends outward from one end of the support base to the outside of the base 1, and the wire pulley is rotatably arranged at the installation part. One end of the tension rope 51 is wound around the load ring 3, the other end is installed with the gravity block 53, and the middle part of the tension rope 51 is lapped on the guide pulley 52. The starting torque for driving the outer ring of the bearing to rotate is simulated by the weight of the gravity block 53. When the gravity block 53 freely falls according to its own gravity, the tension rope 51 generates a pulling force on the load ring 3, thereby driving the load ring 3 to rotate.

[0038] Specifically, in this embodiment, an annular groove for installing the tension rope 51 is provided on the outer ring of the load ring 3, and the tension rope 51 is wound inside the annular groove.

[0039] Preferably, in this embodiment, the position of the support base on the base 1 can be adjusted along the axial direction of the guide pulley 52, and it can be applicable to load rings 3 with different outer diameters.

[0040] In some embodiments, the above-mentioned load ring 3 can adopt a structure as shown in Figure 2 , Figure 3 . Referring to Figure 2 , Figure 3 together, a guiding portion 31 that is slidably engaged with the inner ring of the bearing protrudes from one end surface of the load ring 3. The guiding portion 31 protrudes from one end surface of the load ring 3, and the guiding portion 31 is coaxially arranged with the load ring 3. The guiding portion 31 is slidably engaged with the inner ring of the bearing, so that the load ring 3 can be conveniently installed on the inner ring of the bearing, and the coaxial effect between the inner ring of the bearing and the load ring 3 can be ensured through the guiding between the guiding portion 31 and the inner ring of the bearing.

[0041] In some embodiments, the above-mentioned clamping assembly 2 can adopt a structure as shown in Figure 1 , Figure 2 and Figure 3 . Referring to Figure 1 , Figure 2 and Figure 3, the clamping assembly 2 includes a plurality of clamping blocks 21. The number of the clamping blocks 21 is multiple, and the multiple clamping blocks 21 form an annular clamping position for clamping the bearing, and the positions of the multiple clamping blocks 21 on the base 1 have the freedom to be adjusted radially along the annular clamping position. A center point for coinciding with the axis of the placed bearing is provided on the base 1, and the positions of the multiple clamping blocks 21 are inclined on the base 1 in a direction close to or away from the center point. And the multiple clamping blocks 21 form an annular clamping position for clamping the inner ring or the outer ring of the bearing. The structure is simple and convenient for fixing the bearing below.

[0042] Specifically, in this embodiment, the clamping block 21 is detachably installed on the base 1. When it is necessary to clamp the inner ring of the bearing, the clamping block 21 with an outer arc surface is adopted. When it is necessary to clamp the outer ring of the bearing, the clamping block 21 with an outer arc surface is adopted.

[0043] Specifically, in this embodiment, the number of the clamping blocks 21 is three, and the three clamping blocks 21 are arranged on the base 1 at equal intervals in the circumferential direction of the annular clamping position.

[0044] In some embodiments, the above clamping block 21 can adopt the structure as Figure 2 , Figure 6 shown. Referring to Figure 2 , Figure 6 together, the clamping block 21 includes a sliding part 212 slidably arranged on the base 1 and a clamping part 211 fixedly installed on the sliding part 212. An installation groove for placing the inner ring or the outer ring of the bearing is formed between the sliding part 212 and the clamping part 211. The bottom of the clamping block 21 is the sliding part 212, and the top of the clamping block 21 is the clamping part 211. The sliding part 212 extends outward relative to the clamping part 211, so that the sliding part 212 protrudes a part relative to the clamping part 211 and forms an installation groove for placing the inner ring or the outer ring of the bearing with the clamping part 211. The structure is simple and convenient for positioning and clamping the inner ring or the outer ring of the bearing.

[0045] In some embodiments, the above clamping block 21 can adopt the structure as Figure 2 , Figure 6 shown. Referring to Figure 2 , Figure 6 , the above fixing component 22 can adopt the structure as Figure 2 shown. Referring to Figure 2, a fixing component 22 for fixing the clamping block 21 to the base 1 is further arranged between the clamping block 21 and the base 1. The fixing component 22 includes a fixing rod 221 and a tightening member 223. The fixing rod 221 penetrates through the clamping block 21, a limiting block 222 is arranged at one end of the fixing rod 221, and a sliding groove for accommodating the limiting block 222 is arranged on the base 1; the tightening member 223 is in threaded connection with the fixing rod 221 and is used for fixing the clamping block 21 to the base 1. A sliding groove with a length direction arranged along the sliding direction of the clamping block 21 is arranged on the base 1. The cross section of the sliding groove is a T-shaped structure, the limiting block 222 is slidably arranged inside the sliding groove, and the outer dimension of the limiting block 222 is larger than the outer dimension of the fixing rod 221. When the limiting block 222 slides inside the sliding groove, the fixing rod 221 can be driven to move together. A through hole for installing the fixing rod 221 is arranged on the clamping block 21, the fixing rod 221 is located inside the through hole, and when the fixing rod 221 moves, the clamping block 21 can be driven to move together. A tightening member 223 is in threaded connection at the top end of the fixing rod 221, and the tightening member 223 is a nut. The clamping block 21 can be fixed to the base 1 through the tightening member 223 in combination with the limiting block 222. The structure is simple and the operation is convenient.

[0046] Specifically, in this embodiment, by disassembling the clamping block 21 from the fixing rod 221, the disassembly of the clamping block 21 from the base 1 is realized, which is convenient for replacing the clamping block 21.

[0047] In some embodiments, the above-mentioned base 1 can adopt the structure as Figure 1 shown. Refer to Figure 1 , a vertical rod 9 is fixedly installed on the base 1, the length direction of the vertical rod 9 is arranged along the vertical direction, the detection frame 4 is installed on the vertical rod 9, and the position of the detection frame 4 on the vertical rod 9 has the freedom of adjustment along the vertical direction. The vertical rod 9 is fixedly installed on the base 1 along the vertical direction, a sliding sleeve is sleeved outside the vertical rod 9, and the sliding sleeve is slidably arranged on the vertical rod 9 along the vertical direction. A tightening member is in threaded connection with the side wall of the sliding sleeve, the tightening member penetrates through the side wall of the sliding sleeve and can abut against the vertical rod 9, so that the sliding sleeve can be fixed to the vertical rod 9.

[0048] Specifically, in this embodiment, the sliding sleeve can rotate on the vertical rod 9 with the axis of the vertical rod 9 as the center, the detection frame 4 is arranged perpendicular to the vertical rod 9, and the position of the detection table 41 on the detection frame 4 has the freedom of adjustment along the radial direction of the vertical rod 9, and the position of the detection table 41 can be freely adjusted according to the position of the bearing and the load ring 3.

[0049] In some embodiments, the above-mentioned multi-functional measuring device for the main bearing of the RV reducer can adopt the structure as Figure 4 、 Figure 5 shown. Refer to Figure 4 、Figure 5 In addition, the multi-functional measuring device for the main bearing of the RV reducer further includes a detection cover 8 detachably mounted on the outer ring of the bearing. An installation hole slidably engaged with the outer ring of the bearing is provided on the detection cover 8. By providing the detection cover 8, the inner ring of the bearing can be fixed to the base 1, and then the detection cover 8 is covered on the top of the bearing, with the outer ring of the bearing located inside the installation hole. When the outer ring of the bearing rotates, the value on the top of the detection cover 8 can be detected by the detection meter 41, so that the runout of the end face of the outer ring of the bearing can be obtained.

[0050] Specifically, in this embodiment, the outer ring of the bearing can be clamped by replacing the clamping block 21, and the load ring 3 is placed on the top of the inner ring of the bearing. By rotating the bearing, the value on the top of the load ring 3 can be detected by the detection meter 41, so as to obtain the runout of the end face of the inner ring of the bearing.

[0051] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multifunctional measuring device for the main bearing of an RV reducer, characterized in that: include: Base (1); A clamping assembly (2) is mounted on the base (1) and is used to fix the inner ring or outer ring of the bearing to the base (1); A load ring (3) is detachably mounted on the inner ring of the bearing and overlapped on the top surface of the bearing, and is used to apply gravity to the bearing; A detection frame (4) is mounted on the base (1), and a detection meter (41) for detecting the value of the top surface of the load ring (3) is installed on the detection frame (4); The rotating mechanism (5) is mounted on the base (1) and connected to the load ring (3) to drive the load ring (3) to rotate.

2. The multifunctional measuring device for the main bearing of the RV reducer according to claim 1, characterized in that: The rotating mechanism (5) comprises: A pulling rope (51) is wound around the outside of the load ring (3) and is used to pull the load ring (3) to rotate; A guide wheel (52) is rotatably arranged on one side of the base (1), and the tension rope (51) is overlapped on the outer side of the guide wheel (52); A gravity block (53) is installed at one end of the pulling rope (51) away from the load circle (3) and is used to apply a pulling force to the pulling rope (51).

3. The multifunctional measuring device for the main bearing of the RV reducer according to claim 2, characterized in that: One end surface of the load ring (3) is protrudingly provided with a guide portion (31) that is slidably matched with the inner ring of the bearing.

4. The multifunctional measuring device for main bearing of RV reducer according to claim 1, characterized in that: The clamping assembly (2) comprises: The clamping blocks (21) are multiple in number, and the multiple clamping blocks (21) form an annular clamping position for clamping the bearing, and the positions of the multiple clamping blocks (21) on the base (1) have the freedom to be adjusted radially along the annular clamping position.

5. The multifunctional measuring device for the main bearing of the RV reducer according to claim 4, characterized in that: The clamping block (21) comprises a sliding portion (212) slidably arranged on the base (1) and a clamping portion (211) fixedly mounted on the sliding portion (212); a mounting groove for placing an inner ring or an outer ring of a bearing is formed between the sliding portion (212) and the clamping portion (211).

6. The multifunctional measuring device for the main bearing of the RV reducer according to claim 4, characterized in that: A fixing assembly (22) for fixing the clamping block (21) to the base (1) is also provided between the clamping block (21) and the base (1), and the fixing assembly (22) comprises: A fixing rod (221) is arranged to pass through the clamping block (21); a limiting block (222) is arranged at one end of the fixing rod (221); and a sliding groove for accommodating the limiting block (222) is arranged on the base (1); A tightening member (223) is threadedly connected to the fixing rod (221) and is used to fix the clamping block (21) to the base (1).

7. The multifunctional measuring device for the main bearing of the RV reducer according to claim 1, characterized in that: A vertical pole (9) is fixedly mounted on the base (1), the length direction of the vertical pole (9) is arranged in the vertical direction, the detection frame (4) is mounted on the vertical pole (9), and the position of the detection frame (4) on the vertical pole (9) has the freedom to be adjusted in the vertical direction.

8. The multifunctional measuring device for the main bearing of the RV reducer according to claim 7, characterized in that: The multifunctional measuring device for the main bearing of the RV reducer further comprises a detection cover (8) which is detachably mounted on the outer ring of the bearing, and the detection cover (8) is provided with a mounting hole which is slidably matched with the outer ring of the bearing.

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