Brake disc inner distance measuring scale

Abstract

The utility model relates to the technical field of brake disc inner distance measuring tools, in particular to a brake disc inner distance measuring ruler which comprises a scale rod, scale marks are arranged on the surface of the scale rod, a containing rod is fixedly installed at the front end of the scale rod, and a containing groove communicated with the outside is formed in the top side of the containing rod. Two limiting rods are fixedly installed on the groove wall of the rear side in the storage groove, a rotating shaft is rotationally connected between the groove walls of the left side and the right side in the storage groove, a second bevel gear is fixedly installed on the rotating shaft, two end abutting rods are further fixedly installed on the rotating shaft, a long rod is rotationally connected into the scale rod, and a first bevel gear is fixedly installed at the front end of the long rod; and the first bevel gear is meshed with the second bevel gear. According to the utility model, the end part of the scale rod passes through the inner side of the brake disc, so that the end part abutting rod can abut against the side surface of the brake disc, the stretching measurement operation is facilitated, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of brake disc inner distance measuring tools, in particular to a brake disc inner distance measuring ruler. Background Art

[0002] In modern transportation and industrial applications, brake discs are key components of the braking system, and their performance and safety are of vital importance. Brake discs are the friction components of disc brakes. Their main function is to convert the vehicle's kinetic energy into heat energy through friction with the brake pads, thereby achieving deceleration or stopping. Brake discs are mainly composed of a center sleeve and a disc body fixedly mounted on the annular side of the center sleeve. The center sleeve is used to be mounted on the vehicle axle for fixed installation.

[0003] When producing and preparing brake discs, it is usually necessary to perform multiple inspection operations on the brake discs. Among them, the inner distance of the brake disc is an important parameter for evaluating the working condition of the brake system and performing maintenance and adjustments. The inner distance of the brake disc refers to the length of its internal center sleeve. When measuring this inner distance, a conventional ruler is generally used for measurement. However, since a disc is provided on the outer surface of the center sleeve, it is difficult to measure the inner distance of the brake disc directly from the outside using a ruler due to the obstruction of the disc. In addition, since the inner diameter of the center sleeve is limited, it is difficult to use a conventional ruler to reach into the interior of the center sleeve and perform measurement operations from the inside, which affects the measurement effect and measurement accuracy and brings inconvenience to the user. In view of this, we propose a brake disc inner distance measuring ruler. Utility Model Content

[0004] The purpose of the present invention is to provide a brake disc inner distance measuring ruler to solve the defects mentioned in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A brake disc inner distance measuring ruler comprises a scale rod, the surface of the scale rod is provided with scale lines arranged along the length direction of the scale rod, the front end of the scale rod is fixedly installed with a storage rod, the top side of the storage rod is provided with a storage groove connected to the outside, two mutually symmetrical limit rods are fixedly installed on the rear side groove wall of the storage groove, a rotating shaft is rotatably connected between the left and right groove walls in the storage groove, a second bevel gear is fixedly installed on the rotating shaft, and two mutually symmetrical end clamping rods are also fixedly installed on the rotating shaft, a long rod arranged along the length direction of the scale rod is rotatably connected in the scale rod, the front end of the long rod extends into the storage groove and is fixedly installed with a first bevel gear, the first bevel gear and the second bevel gear are meshed with each other, and the rear end of the long rod extends to the outside of the front end of the scale rod and is fixedly installed with a collar.

[0007] Preferably, a conical tube is fixedly mounted on the front end of the storage rod.

[0008] Preferably, a fixing ring is fixedly mounted on the outer side of the rod body at the rear end portion of the scale rod, and a handle is fixedly mounted on the bottom side of the fixing ring.

[0009] Preferably, an anti-slip layer is provided on the surface of the handle, and an alignment indication arrow is provided on the top side of the rod body at the rear end portion of the scale rod.

[0010] Preferably, a direction arrow is provided on the rear end surface of the scale rod, and the direction arrow points to two rotation directions.

[0011] Preferably, bearings are fixedly installed in the rod bodies at both ends of the scale rod, and the two ends of the long rod respectively pass through the inner ring of the bearing and are fixedly installed on the inner ring of the bearing.

[0012] Preferably, a handle bar is slidably connected to the inner side of the collar, and both ends of the handle bar are fixedly mounted with limiting balls.

[0013] Preferably, the diameter of the limiting ball is larger than the inner diameter of the ring, and the length of the handle rod is between 10 cm and 18 cm.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model is provided with a scale rod and scale lines on the scale rod. The outer diameter of the scale rod is small, so the scale rod can be extended into the brake disc to perform measurement operations. In addition, the first bevel gear and the second bevel gear are provided, and the second bevel gear can be driven to rotate by the rotation of the long rod, and the first bevel gear can be further driven to rotate, so that the end of the end-tightening rod is rotated to the outside of the storage groove, so that the end-tightening rod can be against the other side of the brake disc, so that the scale rod can remain stable, and the measurement and reading operations are smoother, thereby achieving the effect of being able to extend into the brake disc to perform portable measurement of the inner distance of the brake disc.

[0016] 2. The utility model is easy to hold and operate by the handle provided. The direction arrow and the alignment arrow provided can indicate the direction. The handle rod and the limit ball provided make it smoother to rotate the long rod by turning the handle rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0019] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 For this utility model Figure 2 Enlarged view of point B in the middle;

[0021] The meaning of each number in the figure is:

[0022] 1. Scale rod; 10. Scale line; 11. Fixing ring; 12. Handle; 121. Anti-slip layer; 13. Alignment arrow; 14. Bearing; 15. Direction arrow;

[0023] 2. Storage rod; 20. Storage slot; 21. Limit rod; 22. Conical cylinder;

[0024] 3. Long rod; 30. First bevel gear; 31. Rotating shaft; 32. Second bevel gear; 33. End abutment rod; 34. Collar; 35. Handle rod; 36. Limiting ball. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figures 1-4The utility model provides a technical solution: a brake disc inner distance measuring ruler, comprising a scale rod 1, the surface of the scale rod 1 is provided with scale lines 10 arranged along the length direction of the scale rod 1, and the scale lines 10 are used for observing and reading operations; a receiving rod 2 is fixedly installed at the front end of the scale rod 1, and a receiving groove 20 connected to the outside is opened on the top side of the receiving rod 2, and two symmetrical limit rods 21 are fixedly installed on the rear side groove wall of the receiving groove 20, and a rotating shaft 31 is rotatably connected between the left and right groove walls of the receiving groove 20. The rotating shaft 31 A second bevel gear 32 is fixedly mounted on the upper portion, and two mutually symmetrical end abutment rods 33 are also fixedly mounted on the rotating shaft 31. The two end abutment rods 33 can be stored in the storage groove 20. A long rod 3 arranged along the length direction of the scale rod 1 is rotatably connected to the scale rod 1. The front end of the long rod 3 extends into the storage groove 20 and is fixedly mounted with the first bevel gear 30. The first bevel gear 30 and the second bevel gear 32 are meshed with each other. The rear end of the long rod 3 extends to the outside of the front end of the scale rod 1 and is fixedly mounted with a collar 34. When the ends of the end abutment rods 33 rotate from the inside of the storage groove 20 to the outside and stand upright, the rear sides of the two end abutment rods 33 respectively fit against the front sides of the two limit rods 21, so that the limit rods 21 can prevent the end abutment rods 33 from continuing to rotate.

[0027] When in use, the rear end of the scale rod 1 is inserted from one side of the brake disc until the storage rod 2 is inserted from the other side of the brake disc, and then the end long rod 3 is driven to rotate by rotating the long rod 3. After that, the engagement transmission between the first bevel gear 30 and the second bevel gear 32 drives the clamping rod 33 to rotate, so that the end of the clamping rod 33 is rotated from the inside of the storage groove 20 to the outside. At this time, the end of the clamping rod 33 can be used to press against the other side surface of the brake disc, and the scale on the scale line 10 is read to realize the measurement operation.

[0028] In this embodiment, a conical tube 22 is fixedly mounted on the front end of the storage rod 2. The conical tube 22 is in a truncated cone shape, so that the conical tube 22 can be inserted into the brake disc more smoothly along the brake disc.

[0029] Specifically, a fixing ring 11 is fixedly mounted on the outer side of the rear end of the scale rod 1, and a handle 12 is fixedly mounted on the underside of the fixing ring 11. The handle 12 facilitates gripping. The handle 12 is provided with an anti-slip layer 121 on its surface. The anti-slip layer 121 can be made of an anti-slip rubber material. The anti-slip layer 121 provides anti-slip protection.

[0030] Furthermore, an alignment indicator arrow 13 is provided on the top side of the rear end of the scale rod 1, located behind the fixing ring 11. This arrow 13 is used to indicate the placement direction of the scale rod 1. A directional arrow 15 is provided on the rear end surface of the scale rod 1, pointing in both rotational directions to indicate left and right rotation.

[0031] In addition, bearings 14 are fixedly installed in the rod body at both ends of the scale rod 1, and the two ends of the long rod 3 pass through the inner ring of the bearing 14 and are fixedly installed on the inner ring of the bearing 14, so that the long rod 3 can rotate more smoothly.

[0032] It is worth noting that a handle rod 35 is slidably connected to the inner side of the collar 34, and limiting balls 36 are fixedly installed at both ends of the handle rod 35. The ball diameter of the limiting ball 36 is larger than the inner diameter of the collar 34. The length of the handle rod 35 is between 10 cm and 18 cm. By rotating the handle rod 35, the long rod 3 can be driven to rotate more smoothly.

[0033] When the brake disc inner distance measuring ruler of the present invention is in use, first, the conical cylinder 22 and the graduated rod 1 are inserted from one side of the brake disc along the center part of the brake disc until the conical cylinder 22 passes through the other side of the brake disc; after passing through, the handle rod 35 is rotated. As the handle rod 35 rotates, the long rod 3 can be driven to rotate, and the long rod 3 rotates to drive the first bevel gear 30 to rotate. The rotation of the first bevel gear 30 drives the first bevel gear 30 meshing with it to rotate. The rotation of the first bevel gear 30 drives the rotating shaft 31 to rotate. The rotation of the rotating shaft 31 drives the end of the end-tightening rod 33 to rotate to the outside of the receiving groove 20. At this time, the end-tightening rod 33 is used to press against the other side surface of the brake disc, and then the scale on the graduated rod 1 corresponding to the front side of the brake disc is read to complete the measuring operation;

[0034] After the measurement is completed, the handle rod 35 is rotated in the reverse direction to drive the end of the end-tightening rod 33 to be stored in the storage groove 20, and the scale rod 1 is then taken out.

[0035] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A brake disc inner distance measuring ruler, comprising a graduated rod (1), characterized in that: The surface of the scale rod (1) is provided with scale lines (10) arranged along the length direction of the scale rod (1), the front end of the scale rod (1) is fixedly mounted with a receiving rod (2), the top side of the receiving rod (2) is provided with a receiving groove (20) connected to the outside, two mutually symmetrical limiting rods (21) are fixedly mounted on the rear side groove wall of the receiving groove (20), a rotating shaft (31) is rotatably connected between the left and right groove walls of the receiving groove (20), and a second bevel gear (31) is fixedly mounted on the rotating shaft (31). 2), two mutually symmetrical end-holding rods (33) are fixedly mounted on the rotating shaft (31), a long rod (3) arranged along the length direction of the scale rod (1) is rotatably connected in the scale rod (1), the front end of the long rod (3) extends into the receiving groove (20) and is fixedly mounted with a first bevel gear (30), the first bevel gear (30) and the second bevel gear (32) are meshed with each other, and the rear end of the long rod (3) extends to the outside of the front end of the scale rod (1) and is fixedly mounted with a collar (34).

2. The brake disc inner distance measuring ruler according to claim 1, characterized in that: A conical cylinder (22) is fixedly mounted on the front end of the storage rod (2).

3. The brake disc inner distance measuring ruler according to claim 1, characterized in that: A fixing ring (11) is fixedly mounted on the outer side of the rod body at the rear end of the scale rod (1), and a handle (12) is fixedly mounted on the bottom side of the fixing ring (11).

4. The brake disc inner distance measuring ruler according to claim 3, characterized in that: An anti-slip layer (121) is provided on the surface of the handle (12), and an alignment indication arrow (13) is provided on the top side of the rod body at the rear end of the scale rod (1).

5. The brake disc inner distance measuring ruler according to claim 1, characterized in that: A direction arrow (15) is provided on the rear end surface of the scale rod (1), and the direction arrow (15) points to two rotation directions.

6. The brake disc inner distance measuring ruler according to claim 1, characterized in that: Bearings (14) are fixedly installed in the rod bodies at both ends of the scale rod (1), and the two ends of the long rod (3) respectively pass through the inner ring of the bearing (14) and are fixedly installed on the inner ring of the bearing (14).

7. The brake disc inner distance measuring ruler according to claim 1, characterized in that: The inner side of the collar (34) is slidably connected to a handle bar (35), and both ends of the handle bar (35) are fixedly mounted with limiting balls (36).

8. The brake disc inner distance measuring ruler according to claim 7, characterized in that: The ball diameter of the limiting ball (36) is larger than the inner diameter of the collar (34), and the length of the handle rod (35) is between 10 cm and 18 cm.

Images