Torsion bar hardening and tempering polishing stick for steering engine with small gear clearance

Abstract

The utility model relates to the technical field of polishing sticks, and discloses a torsion bar tempering polishing stick with small gear clearance for a steering machine, which comprises a stick body, the upper end and the lower end of the stick body are respectively provided with a threaded hole I, the left end and the right end of the stick body are respectively provided with a clamping groove, the outer wall of the stick body is provided with a lantern ring, and the left side and the right side of the inner wall of the lantern ring are respectively and fixedly connected with a clamping block. A gear is arranged on the outer wall of the lantern ring, a second fixing block is arranged at the bottom end of the gear, a third threaded hole is formed in the bottom end of the second fixing block, a second bolt is in threaded connection with the inner wall of the third threaded hole, a plurality of second threaded holes are formed in the top end of the gear, and first bolts are in threaded connection with the inner walls of the second threaded holes. According to the polishing stick, the gap between the stick body and the gear is filled through the lantern ring, so that the end face of the polishing stick does not make contact with the edge of a gear through hole to cause deformation in the assembling process, and meanwhile, only the lantern ring needs to be replaced after abrasion is generated in use, and cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing rods, in particular to a torsion bar tempering polishing rod for a steering machine with a small gear gap. Background Art

[0002] A polishing rod is a metal rod with a polished surface. It is usually made of stainless steel and is often used as a connecting shaft for coaxial welding and fixing between gears in various machine tools. When installing a gear, a hole of the same size as the polishing rod is usually machined on the axis of the gear to prevent the gear from shaking after the gear and the polishing rod are assembled.

[0003] After searching, the publication number CN216943250U is a fatigue-resistant automobile steering gear torsion bar tempering and polishing rod. When installing the polishing rod and the gear, first align the rod body with the gear. If they are not aligned, the gear will conflict with the support plate on the guide round table, and first conflict with the conflict wall of the support plate. Since the support plate is elastically rotatably connected to the guide round table, and the conflict plate is inclined, when the gear conflicts with the conflict wall, the conflict wall will be pressed downward. Since the conflict wall and the support wall are integrally arranged, the support wall also rotates toward the guide round table until the conflict wall conflicts with the inner wall of the gear. At this time, the rod body is accurately inserted into the gear through the guiding effect of the entire support plate, effectively avoiding the wear of the gear. At the same time, after the installation is completed, the elastic restoring force drives the support wall to always apply force to the inner wall of the gear, thereby further strengthening the tightness and firmness of the connection between the polishing rod and the gear.

[0004] Based on the above patent, its background technology mentioned that since the size of the polishing rod is consistent with that of the perforation on the gear, when the gear is installed on the polishing rod, the polishing rod is not easy to align with the perforation, and when the edge of the end face of the polishing rod contacts the edge of the perforation, it is easy to cause the edge of the perforation opening to deform, affecting the subsequent insertion of the polishing rod. In response to this technical problem, the present application proposes a torsion bar tempering polishing rod for a steering gear with a small gear gap. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art and proposes a torsion bar tempering and polishing rod for a steering gear with a small gear gap. The gap between the rod body and the gear is filled by a sleeve ring so that the end face of the polishing rod will not contact the perforated edge of the gear during the assembly process to cause deformation. At the same time, after wear occurs during use, only the sleeve ring needs to be replaced to save costs.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A torsion bar tempering and polishing rod for a steering gear with a small gear clearance comprises a rod body, wherein the upper and lower ends of the rod body are both provided with a threaded hole, the left and right ends of the rod body are both provided with a clamping groove, the outer wall of the rod body is provided with a collar, the left and right sides of the inner wall of the collar are fixedly connected with clamping blocks, the outer wall of the collar is provided with a gear, the bottom end of the gear is connected with a fixing block two through a first fixing component, and the top end of the gear is connected with a fixing block one through a second fixing component.

[0008] Furthermore, the first fixing assembly includes a threaded hole three opened at the bottom end of the second fixing block, the inner wall of the threaded hole three is threadedly connected with a second bolt, and the top end of the second fixing block is arranged at the bottom end of the gear.

[0009] Furthermore, the second fixing assembly includes a plurality of threaded holes 2 arranged at the top of the gear, the inner walls of the threaded holes 2 are threadedly connected with first bolts, the bottom end of the fixing block 1 is arranged at the top of the gear, and the bottom end of the fixing block 1 is provided with a plurality of through holes.

[0010] Furthermore, the outer walls of the card blocks are all arranged on the inner walls of the card slots.

[0011] Furthermore, the bottom end of the card block is arranged at the top end of the second fixing block, and the top end of the card block is arranged at the bottom end of the first fixing block.

[0012] Furthermore, the second inner wall of the fixing block is arranged at the bottom end of the rod body, and the outer wall of the second bolt is threadedly connected to the first inner wall of the lower threaded hole.

[0013] Furthermore, an inner wall of the fixing block is arranged on the outer wall of the rod body, and the outer walls of the first bolts are arranged on the inner wall of the through hole.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the gap between the rod body and the gear can be filled by the collar with the cooperation of the groove, the fixing block 1, the through hole, the first bolt, the fixing block 2 and the second bolt, so that the end face of the polished rod will not contact the edge of the gear perforation during the assembly process to cause deformation. At the same time, after wear and tear during use, only the collar needs to be replaced to save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a torsion bar tempering and polishing rod for a steering gear with a small gear gap proposed by the utility model;

[0017] Figure 2 The utility model provides a torsion bar tempering and polishing rod for a steering gear with a small gear gap. Figure 1 ;

[0018] Figure 3The utility model provides a torsion bar tempering and polishing rod for a steering gear with a small gear gap. Figure 2 .

[0019] Legend:

[0020] 1. Rod body; 2. Slot; 3. Threaded hole 1; 4. Fixing block 1; 5. Through hole; 6. Gear; 7. First bolt; 8. Ring; 9. Block; 10. Threaded hole 2; 11. Fixing block 2; 12. Second bolt; 13. Threaded hole 3. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Reference Figure 1-3 The utility model provides an embodiment: a torsion bar tempering and polishing rod for a steering machine with a small gear gap, comprising a rod body 1, a threaded hole 3 is arranged at both the upper and lower ends of the rod body 1, a clamping groove 2 is arranged at both the left and right ends of the rod body 1, a collar 8 is arranged on the outer wall of the rod body 1, and a clamping block 9 is fixedly connected to the left and right sides of the inner wall of the collar 8, the outer wall of the clamping block 9 is arranged on the inner wall of the clamping groove 2, the bottom end of the clamping block 9 is arranged on the top of the fixed block 11, the top of the clamping block 9 is arranged on the bottom end of the fixed block 4, the outer wall of the collar 8 is arranged on the gear 6, and the bottom end of the gear 6 is arranged on the fixed block 11, The inner wall of the fixing block 11 is arranged at the bottom end of the rod body 1, and a threaded hole 13 is arranged at the bottom end of the fixing block 11. The inner wall of the threaded hole 13 is threadedly connected with a second bolt 12, and the outer wall of the second bolt 12 is threadedly connected to the inner wall of the lower threaded hole 13. A plurality of threaded holes 10 are arranged at the top end of the gear 6, and the inner wall of the threaded hole 10 is threadedly connected with a first bolt 7. A fixing block 4 is arranged at the top end of the gear 6, and the inner wall of the fixing block 4 is arranged at the outer wall of the rod body 1, and the outer walls of the first bolt 7 are all arranged at the inner wall of the through hole 5. A plurality of through holes 5 are arranged at the bottom end of the fixing block 4;

[0023] Specifically, when assembling the polishing rod, first pass the rod body 1 through the through hole on the axis of the gear 6, and then assemble the fixing block 2 11 at the bottom of the rod body 1. Fix the rod body 1 and the fixing block 2 11 by the cooperation of the second bolt 12 in the threaded hole 3 and the threaded hole 1 3. The fixing block 2 11 is fitted on the bottom surface of the gear 6 to prevent the rod body 1 from detaching from the gear 6. Then align the clamping block 9 on the collar 8 with the clamping groove 2 on the rod body 1, so that the collar 8 slides on the rod body 1 to the through hole on the axis of the gear 6 to fill the gap between the rod body 1 and the gear 6, so that the rod body 1 can drive the gear 6 to rotate. At the same time, when it is worn out after being used for a long time, only the collar 8 needs to be replaced. Then, the fixing block 1 4 is sleeved on the rod body 1 so that the through hole 5 is aligned with the threaded hole 2 10, and then the first bolt 7 is passed through the through hole 5 to fix the fixing block 1 4 on the gear 6 to prevent the collar 8 from slipping out and cooperate with the fixing block 2 11 to clamp the gear 6 to prevent shaking during work.

[0024] Working principle: when assembling the polishing rod, first pass the rod body 1 through the through hole of the axis of the gear 6, and then assemble the fixing block 2 11 at the bottom of the rod body 1, and fix the rod body 1 and the fixing block 2 11 through the cooperation of the threaded hole 3 13 and the threaded hole 1 3, and the fixing block 2 11 is fitted on the bottom surface of the gear 6 so that the rod body 1 will not be separated from the gear 6, and then the clamping block 9 on the collar 8 is aligned with the clamping groove 2 on the rod body 1, so that the collar 8 slides on the rod body 1 to the through hole on the axis of the gear 6 to fill the gap between the rod body 1 and the gear 6, so that the rod body 1 can drive the gear 6 to rotate. At the same time, when the collar 8 is worn out after being used for a long time, only the collar 8 needs to be replaced, and then the fixing block 1 4 is sleeved on the rod body 1 so that the through hole 5 is aligned with the threaded hole 2 10, and then the first bolt 7 is passed through the through hole 5 to fix the fixing block 1 4 on the gear 6 to prevent the collar 8 from slipping out and cooperate with the fixing block 2 11 to clamp the gear 6 to prevent shaking during work.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A torsion bar quenched and polished rod for a steering gear with small gear clearance, comprising a rod body (1), characterized in that: The rod body (1) is provided with a threaded hole (3) at both upper and lower ends, and a clamping groove (2) is provided at both left and right ends of the rod body (1). The outer wall of the rod body (1) is provided with a collar (8), and clamping blocks (9) are fixedly connected to the left and right sides of the inner wall of the collar (8). The outer wall of the collar (8) is provided with a gear (6), and the bottom end of the gear (6) is connected to a fixing block (11) through a first fixing component, and the top end of the gear (6) is connected to a fixing block (4) through a second fixing component.

2. The torsion bar tempering and polishing rod for a steering gear with small gear clearance according to claim 1, characterized in that: The first fixing assembly comprises a threaded hole three (13) opened at the bottom end of the fixing block two (11), the inner wall of the threaded hole three (13) is threadedly connected with a second bolt (12), and the top end of the fixing block two (11) is arranged at the bottom end of the gear (6).

3. The torsion bar tempering and polishing rod for a steering gear with small gear clearance according to claim 1, characterized in that: The second fixing assembly comprises a plurality of threaded holes (10) arranged at the top of the gear (6), the inner walls of the threaded holes (10) are all threadedly connected with first bolts (7), the bottom end of the fixing block (4) is arranged at the top of the gear (6), and the bottom end of the fixing block (4) is provided with a plurality of through holes (5).

4. The torsion bar tempering and polishing rod for a steering gear with small gear clearance according to claim 1, characterized in that: The outer walls of the clamping blocks (9) are arranged on the inner walls of the clamping slots (2).

5. The torsion bar tempering and polishing rod for a steering gear with small gear clearance according to claim 1, characterized in that: The bottom end of the clamping block (9) is arranged at the top end of the second fixing block (11), and the top end of the clamping block (9) is arranged at the bottom end of the first fixing block (4).

6. The torsion bar tempering and polishing rod for a steering gear with small gear clearance according to claim 2, characterized in that: The inner wall of the second fixing block (11) is arranged at the bottom end of the rod body (1), and the outer wall of the second bolt (12) is threadedly connected to the inner wall of the lower threaded hole (3).

7. The torsion bar tempering and polishing rod for a steering gear with small gear clearance according to claim 3, characterized in that: The inner wall of the fixing block (4) is arranged on the outer wall of the rod body (1), and the outer wall of the first bolt (7) is arranged on the inner wall of the through hole (5).

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