Rolling bearing friction force test bench

Abstract

The utility model discloses a rolling bearing friction force test bench, and specifically relates to the rolling bearing detection technology field, comprising a substrate, the lower end of the substrate is fixedly connected with a supporting seat, the right side of the front part of the upper end of the substrate is fixedly connected with a console, and the left side of the rear part of the upper end of the substrate is fixedly connected with a fixed plate; the upper part of the fixing plate is provided with a rotary fixing device, and the right side of the rear part of the upper end of the substrate is provided with a detection device. According to the rolling bearing friction test bench, through the designed rotary fixing device, a rolling bearing placed on the rotary fixing device can be fixed and driven to rotate, and the rolling bearing can be prevented from moving or deforming in the detection process, so that the accuracy of a measurement result is ensured; if the rolling bearing is detected under the condition that the rolling bearing is not fixed well, the measuring instrument may be damaged due to shaking or instability, the risk can be reduced by fixing the rolling bearing, and the measuring instrument is protected from being damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to rolling bearing detection technical field, in particular to a kind of rolling bearing friction test bench. BACKGROUND

[0002] Rolling bearing is the sliding friction between the shaft and the shaft seat during operation is changed into rolling friction, so as to reduce the friction loss of a kind of precision mechanical element.

[0003] Rolling bearing is generally composed of inner ring, outer ring, rolling body and retainer.

[0004] Rolling bearing friction torque refers to the resistance torque generated by friction when bearing is running, which mainly includes the friction between rolling body and raceway, and the sliding friction between rolling body, sleeve ring and retainer.

[0005] Rolling bearing friction detection mainly focuses on the friction torque generated during the operation of bearing, which is one of the main indicators for measuring the dynamic performance of bearing (especially precision bearing).

[0006] In prior art, rolling bearing friction test bench can only detect rolling bearings with consistent size, and it is necessary to replace the fixing clamp when detecting other models, thereby increasing the consumption of manpower, so a rolling bearing friction test bench is needed. UTILITY MODEL CONTENT

[0007] The main purpose of the utility model is to provide a kind of rolling bearing friction test bench, which can effectively solve the problem that test bench cannot detect rolling bearings of different sizes.

[0008] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0009] A kind of rolling bearing friction test bench, including base plate, the lower end of the base plate is fixedly connected with support seat, the front right side of the upper end of the base plate is fixedly connected with control console, the left side of the rear of the upper end of the base plate is fixedly connected with fixed plate, rotating fixing device is installed on the upper part of the fixed plate, detection device is installed on the right side of the rear of the upper end of the base plate.

[0010] Preferably, the rotating fixing device includes a stepper motor, the stepper motor is fixedly connected to the upper part of the rear end of the fixed plate, the output end of the stepper motor is fixedly connected with connecting column, the inner cavity of the connecting column is threadedly connected with threaded rod, the outer surface of the threaded rod is rotationally connected with connecting ring in front part, the outer surface of the connecting ring and the outer surface of the connecting column are rotationally connected with three opening mechanisms in common annular array.

[0011] Preferably, the connecting column is rotationally connected with the upper part of the front end of the fixed plate.

[0012] Preferably, the opening mechanism comprises two link rods II and two link rods I, the link rod II is rotationally connected to the outer surface of the connecting ring at a portion away from the connecting column, the two link rods I are rotationally connected to the front and rear portions of the outer surface of the connecting column at portions close to the threaded rod respectively, and the link rod II and the two link rods I away from the connecting column are rotationally connected with a support plate.

[0013] Preferably, the detection device comprises a fixing seat fixedly connected to the right side of the rear end of the upper end of the base plate, an electric telescopic cylinder fixedly connected to the upper end of the fixing seat, a push plate fixedly connected to the output end of the electric telescopic cylinder, a base fixedly connected to the lower end of the push plate, a pressure sensor fixedly connected to the upper end of the base, a thimble placed at the contact end of the pressure sensor, a friction plate fixedly connected to the upper end of the thimble, and guide rails slidably connected to the middle sides of the front and rear portions of the base.

[0014] Preferably, the two slide blocks are slidably connected with the friction plate at the ends close to each other.

[0015] Preferably, the lower end of the guide rail is fixedly connected to the upper end of the base plate.

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

[0017] 1、The rotating fixing device can fix and drive the rolling bearing on the rotating fixing device, prevent the rolling bearing from moving or deforming during detection, and ensure the accuracy of the measurement result.

[0018] 2、The rotating fixing device can fix rolling bearings of different sizes without replacing the fixing mechanism, thereby reducing the labor of personnel. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of the utility model;

[0020] Figure 2 It is a rotating fixing device structure schematic view of the utility model;

[0021] Figure 3 It is an opening mechanism structure schematic view of the utility model;

[0022] Figure 4 It is a detection device structure schematic view of the utility model;

[0023] Figure 5 Another view of the detection device structure schematic diagram of the utility model.

[0024] In the figure: 1, base plate; 2, support seat; 3, fixed plate; 4, rotating fixing device; 5, detection device; 6, control console; 41, stepping motor; 42, opening mechanism; 43, connecting ring; 44, threaded rod; 45, connecting column; 421, support plate; 422, connecting rod one; 423, connecting rod two; 51, fixed seat; 52, electric telescopic cylinder; 53, push plate; 54, friction plate; 55, sliding seat; 56, thimble; 57, guide rail; 58, pressure sensor; 59, base. DETAILED DESCRIPTION

[0025] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0026] As Figure 1 shown, a rolling bearing friction test bench, including base plate 1, the lower end of base plate 1 is fixedly connected with support seat 2, the front right side of the upper end of base plate 1 is fixedly connected with control console 6, the left side of the rear of the upper end of base plate 1 is fixedly connected with fixed plate 3, rotating fixing device 4 is installed on the upper part of fixed plate 3, and detection device 5 is installed on the right side of the rear of the upper end of base plate 1.

[0027] The device can be powered using an external power supply before implementation.

[0028] The control console 6 of the device can control the start of the rotating fixing device 4 and the detection device 5, and display the detection results.

[0029] In the above, the rolling bearing is placed on the rotating fixing device 4, then the rotating fixing device 4 is manually rotated, so that the rotating fixing device 4 supports and fixes the inner cavity of the rolling bearing, after the fixing is completed, the detection device 5 is controlled to move to the part close to the rotating fixing device 4, so that the detection device 5 contacts the rolling bearing fixed on the rotating fixing device 4 and is attached to the rolling bearing, then the rotating fixing device 4 is started to rotate, so that the rotating fixing device 4 drives the rolling bearing to rotate, then the detection device 5 is attached to the outer ring of the rolling bearing due to the reason, so that the detection device 5 exerts pressure on the outer ring of the rolling bearing, the rotating fixing device 4 drives the inner ring of the rolling bearing to rotate, so that the detection device 5 collects the friction generated when the rolling bearing rotates and transmits the information to the control console 6.

[0030] In the above, after detection, first stop rotating the rotating fixture 4 to move, and then control the detection device 5 to move to the left, so that the detection device 5 moves back to the original position, and finally manually rotate the rotating fixture 4 to release the fixation of the rolling bearing, and finally take down the rolling bearing, and install the next rolling bearing on the rotating fixture 4 for detection.

[0031] In the above, through the design of the rotating fixture 4 to expand the fixation of the rolling bearing outer ring, the rotating fixture 4 can be applied to rolling bearings of different sizes.

[0032] Further, in order to realize the purpose of the rotating fixture 4 to support and fix the rolling bearing and drive it to rotate, referring to Figure 2 and Figure 3 , the rotating fixture 4 comprises a stepping motor 41 fixedly connected to the upper part of the rear end of the fixed plate 3, the output end of the stepping motor 41 is fixedly connected with a connecting column 45, the inner cavity of the connecting column 45 is threadedly connected with a threaded rod 44, the outer surface of the threaded rod 44 is rotationally connected with a connecting ring 43 at the front part, and the outer surface of the connecting ring 43 and the outer surface of the connecting column 45 are rotationally connected with three opening mechanisms 42 in a common annular array.

[0033] The connecting column 45 is rotationally connected with the upper part of the front end of the fixed plate 3.

[0034] The opening mechanism 42 comprises two connecting rods 423 and two connecting rods 422, one part of the connecting rod 423 away from the connecting column 45 is rotationally connected with the outer surface of the connecting ring 43, and the two connecting rods 422 close to the threaded rod 44 are rotationally connected with the front and rear parts of the outer surface of the connecting column 45, respectively, and the connecting rod 423 and the two connecting rods 422 away from the connecting column 45 are commonly rotationally connected with a support plate 421.

[0035] In the above, the rolling bearing is placed on the opening mechanism 42, and then the threaded rod 44 is rotated to move backward through the threaded connection with the connecting column 45, and when the threaded rod 44 moves backward, it drives the connecting ring 43 to move downward through the rotational connection with the connecting ring 43, so that the connecting ring 43 expands the opening mechanism 42 to fix the rolling bearing, and then the stepping motor 41 is started to rotate, which drives the connecting column 45 to rotate through the coupling, so that the connecting column 45 drives the opening mechanism 42 to rotate, and the power is transmitted to the rolling bearing to drive the rolling bearing to rotate, and the friction of the rolling bearing is detected.

[0036] In the above, when the connecting ring 43 moves backward, it drives the connecting rod two 423 to rotate in the opposite direction to the vertical state, and then drives the support plate 421 to move upward through the rotating connection relationship, when the support plate 421 moves upward, it drives the connecting rod one 422 to rotate in the direction of the vertical state, so that the connecting rod one 422 supports the rear of the support plate 421, when the rear stepping motor 41 drives the connecting column 45 to rotate, the connecting column 45 drives the support plate 421 to rotate through the connecting rod one 422, so that the support plate 421 drives the inner ring of the rolling bearing to rotate, and then detects the friction force of the rolling bearing.

[0037] Further, in order to realize the purpose of controlling the detection device 5 to detect the friction force of the rolling bearing, and then transmitting the detection information to the control console 6, referring to Figure 4 and Figure 5 , the detection device 5 comprises a fixed seat 51 fixedly connected to the right side of the upper end rear of the base plate 1, an electric telescopic cylinder 52 fixedly connected to the upper end of the fixed seat 51, a push plate 53 fixedly connected to the output end of the electric telescopic cylinder 52, a base 59 fixedly connected to the lower end of the push plate 53, a pressure sensor 58 fixedly connected to the upper end middle of the base 59, a thimble 56 placed on the contact end of the pressure sensor 58, a friction plate 54 fixedly connected to the upper end of the thimble 56, two sliding seats 55 fixedly connected to the front and rear middle sides of the upper end of the base 59, and a guide rail 57 slidingly connected to the front and rear middle sides of the base 59.

[0038] The two sliding seats 55 are slidingly connected to the friction plate 54 at one end close to each other;

[0039] The lower end of the guide rail 57 is fixedly connected to the upper end of the base plate 1.

[0040] Among the above, the electric telescopic cylinder 52 is started to work, the output end of the electric telescopic cylinder 52 is extended, the output end of the electric telescopic cylinder 52 pushes the push plate 53, the push plate 53 drives the base 59 to move on the outer surface of the guide rail 57, the base 59 drives the sliding seat 55, the friction plate 54 and the pressure sensor 58 to move in sequence when moving, when the left end of the friction plate 54 is attached to the rolling support outer ring, the electric telescopic cylinder 52 stops moving, and then the rotating fixing device 4 drives the rolling bearing inner ring to rotate, at this time, because the friction plate 54 exerts pressure on the rolling bearing outer ring, when the rolling bearing inner ring rotates, the outer ring does not rotate, when no pressure is exerted on the rolling bearing outer ring, the inner ring rotates, and the friction force drives the outer ring to rotate together, and the friction plate 54 exerts pressure on the rolling bearing outer ring, so that the rolling bearing outer ring cannot rotate, at this time, the friction force is transmitted to the friction plate 54, the friction plate 54 is driven to slide on the sliding seat 55, and the pressure is transmitted to the pressure sensor 58 through the thimble 56, after the pressure sensor 58 receives the signal, the signal is transmitted to the control console 6 in the form of information, and the rolling bearing is detected.

[0041] It should be particularly pointed out that the specific installation mode of the electric telescopic cylinder 52, the pressure sensor 58 and the stepping motor 41, the connection mode of the circuit and the control method all belong to conventional design, and the utility model will not be described in detail.

[0042] The basic principle and main features of the utility model and the advantages of the utility model are shown and described. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A rolling bearing friction test bench comprising a base plate (1), characterized in that: The lower end of the substrate (1) is fixedly connected with a support seat (2), the front right upper end of the substrate (1) is fixedly connected with a control console (6), the left rear upper end of the substrate (1) is fixedly connected with a fixed plate (3), the upper portion of the fixed plate (3) is provided with a rotating fixing device (4), and the right rear upper end of the substrate (1) is provided with a detection device (5).

2. A rolling bearing friction test rig according to claim 1, characterised in that: The rotating fixing device (4) comprises a stepping motor (41), the stepping motor (41) is fixedly connected to the rear end of the fixed plate (3), the output end of the stepping motor (41) is fixedly connected with a connecting column (45), the inner cavity of the connecting column (45) is threadedly connected with a threaded rod (44), the front portion of the outer surface of the threaded rod (44) is rotatably connected with a connecting ring (43), and the outer surface of the connecting ring (43) and the outer surface of the connecting column (45) are rotatably connected with three opening mechanisms (42) in a common annular array.

3. A rolling bearing friction test rig according to claim 2, characterised in that: The connecting column (45) is rotatably connected with the front upper end of the fixed plate (3).

4. A rolling bearing friction test rig according to claim 2, characterised in that: The opening mechanism (42) comprises two connecting rods II (423) and two connecting rods I (422), one portion of the connecting rod II (423) away from the connecting column (45) is rotatably connected with the outer surface of the connecting ring (43), and the other portions of the two connecting rods I (422) are rotatably connected with the front portion and the rear portion of the outer surface of the connecting column (45), respectively, and the one portion of the connecting rod II (423) and the two connecting rods I (422) away from the connecting column (45) are rotatably connected with a support plate (421) in common.

5. A rolling bearing friction test rig according to claim 1, characterized in that: The detection device (5) comprises a fixed seat (51), the fixed seat (51) is fixedly connected to the right rear upper end of the substrate (1), the upper end of the fixed seat (51) is fixedly connected with an electric telescopic cylinder (52), the output end of the electric telescopic cylinder (52) is fixedly connected with a push plate (53), the lower end of the push plate (53) is fixedly connected with a base (59), the upper end of the base (59) is fixedly connected with a pressure sensor (58), the contact end of the pressure sensor (58) is placed with a thimble (56), the upper end of the thimble (56) is fixedly connected with a friction plate (54), the upper end of the base (59) is fixedly connected with a sliding seat (55) on the front portion and the rear portion, and the base (59) is fixedly connected with a guide rail (57) on the front portion and the rear portion.

6. A rolling bearing friction test rig according to claim 5, characterised in that: The two sliding seats (55) are slidably connected with the friction plate (54) on one end thereof.

7. A rolling bearing friction test rig according to claim 5, characterised in that: The lower end of the guide rail (57) is fixedly connected with the upper end of the substrate (1).

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