Improved torsion bar spring forced torsion device

Abstract

The utility model discloses an improved torsion bar spring forced twisting device, and belongs to the technical field of tracked vehicle part machining. The lathe comprises a main shaft mechanism, a tailstock mechanism and a lathe bed, the main shaft mechanism is fixedly installed at the left end of the lathe bed, and the tailstock mechanism is installed at the right end of the lathe bed; a torque motor is installed in the main shaft mechanism, a driving shaft is driven by the torque motor to rotate in a main shaft seat, an adjusting seat, a driven shaft seat and a driven shaft are arranged in the tailstock mechanism, and the position of the tailstock mechanism on the lathe bed is adjustable so as to be used for being matched with installation of a torsion rod spring to be machined. According to the utility model, the replaceable spline housing and the support are adopted, so that parts with different specifications can be adapted, the structure is simple, the installation part is compact, the weight is light, and the cost is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of track vehicle parts processing, in particular to a torsion bar spring strong torsion device. Background Art

[0002] Torsion bar spring is an important component in the suspension system of tracked armored vehicles. Made of high-quality alloy structural steel 45GrNiMoVA, it has high elasticity and can be twisted and deformed but also restored, similar to a coil spring. It plays a very important role in the action system. Each vehicle generally needs to be equipped with 8-12 torsion bar springs. For installation needs, the torsion bar spring has splines at both ends. One end of the spline is connected to the spline hole of the balance elbow bracket welded on the vehicle body and cannot rotate. The other end is inserted into the inner spline hole of the balance elbow and can rotate with the balance elbow. When the tracked vehicle is driving, due to uneven ground or obstacles, the road wheel moves upward and the balance elbow rotates upward. At this time, the torsion bar spring twists and deforms accordingly, absorbing the impact energy caused by bumps and vibrations, reducing the impact on the vehicle, thereby reducing the fatigue of the passengers, reducing the premature damage of vehicle parts, and increasing the driving speed.

[0003] After the torsion bar spring is subjected to the strong torsion process, the surface of the rod is plastically deformed, resulting in a plastic zone. The center of the cross section is still elastically deformed and tries to recover to its original state, but the plastic zone on the outer surface will prevent it from recovering, resulting in an interaction force between the layers along the radius of the rod. Strong torsion can increase the load-bearing capacity of the torsion bar spring, improve the uniform distribution of cross-sectional stress, and allow the load-bearing capacity of the material on the entire cross section to be exerted.

[0004] At present, the torsion bar spring torsion device has low adaptability to the length and size of the torsion bar spring parts that can be processed. Special tooling is required to complete the torsion bar spring torsion processing for torsion bar springs of different diameters and lengths. Utility Model Content

[0005] The utility model proposes an improved torsion bar spring strong torque device. A brief overview of the utility model is given below to provide a basic understanding of certain aspects of the utility model. It should be understood that this overview is not an exhaustive overview of the utility model. It is not intended to determine the key or important parts of the utility model, nor is it intended to limit the scope of the utility model.

[0006] The technical solution of this utility model:

[0007] An improved torsion bar spring strong torsion device comprises a main shaft mechanism, a tailstock mechanism and a bed, wherein the main shaft mechanism is fixedly mounted on the left end of the bed, and the tailstock mechanism is mounted on the right end of the bed;

[0008] The spindle mechanism comprises a torque motor, a driving shaft and a spindle seat, the torque motor is fixedly mounted on the motor base through a motor support, the motor base is fixedly mounted on the bed, the output shaft of the torque motor is installed with the driving shaft by a key connection, the driving shaft is rotatably mounted in the spindle seat through a bearing, a first square hole is processed at the right end of the driving shaft, a first spline sleeve is installed in the first square hole, and a first spline groove is processed at the center position of the first spline sleeve;

[0009] The tailstock mechanism includes an adjusting seat, a driven shaft seat, a driven shaft, an end cover and a second spline sleeve. The adjusting seat is a U-shaped seat with two slide grooves processed on the adjusting seat. Slide blocks are provided on both sides of the driven shaft seat. The driven shaft seat is installed in the slide grooves of the adjusting seat through the slide blocks. The driven shaft is installed in the driven shaft seat through a bearing. An end cover is installed at the right end of the driven shaft seat. A second square hole is processed at the left end of the driven shaft. A second spline sleeve is installed in the second square hole. A second spline groove is processed at the center position of the second spline sleeve. A rack is installed at the bottom of the driven shaft seat. A second adjusting shaft is rotatably installed in the adjusting seat. An adjusting wheel is installed on a section of the second adjusting shaft. A gear is installed at the other end of the second adjusting shaft, and the gear is meshed with the rack.

[0010] Preferably, five pairs of fixing holes are processed at the right end of the bed, and the adjusting seat is fixedly mounted on the fixing holes by fastening bolts.

[0011] Preferably, two parallel slideways are processed on the bed, and a safety protection door is slidably installed in the slideways.

[0012] Preferably: a replaceable bracket for supporting the torsion bar spring to be processed is installed in the middle position of the bed, and the top of the replaceable bracket has a V-shaped groove.

[0013] Preferably, the end surface of the first spline sleeve is processed with a first boss.

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

[0015] 1. The purpose of the utility model is to greatly increase the range of parts that can be processed by the strong torsion equipment, improve the availability of the equipment, and adapt to the processing of torsion bar springs of different models and sizes through the replaceable first spline sleeve and the second spline sleeve, thereby greatly increasing the processing range of the equipment;

[0016] 2. The replaceable spline sleeve and bracket can cope with parts of various specifications, with simple structure, compact installation location, light weight and low cost;

[0017] 3. The tailstock mechanism of the utility model has an adjustment function, can adapt to the installation of torsion bar springs of different lengths, and complete strong torsion processing operations, and has the advantages of easy installation and high processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a stereoscopic diagram of an improved torsion bar spring torque strengthening device;

[0019] Figure 2 It is a front view of an improved torsion bar spring torque strengthening device;

[0020] Figure 3 It is a top view of an improved torsion bar spring torque strengthening device;

[0021] Figure 4 It is a cross-sectional view of the spindle mechanism;

[0022] Figure 5 It is a cross-sectional view of the tailstock mechanism;

[0023] Figure 6 is a stereogram of the first splined sleeve;

[0024] Figure 7 is a stereogram of the second splined hub;

[0025] In the figure, 1-spindle mechanism, 2-tailstock mechanism, 3-bed, 4-torque motor, 5-driving shaft, 6-spindle seat, 7-motor support, 8-motor base, 9-first square hole, 10-first spline sleeve, 11-first spline groove, 12-adjusting seat, 13-driven shaft seat, 14-driven shaft, 15-end cover, 16-second spline sleeve, 17-slide groove, 18-slider, 19-second square hole, 20-second spline groove, 21-rack, 22-second adjusting shaft, 23-adjusting wheel, 24-gear, 25-fixed hole, 26-slideway, 27-protective door, 28-replaceable bracket, 29-first boss. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described below by specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0027] The connection mentioned in the present invention is divided into fixed connection and detachable connection. The fixed connection is a non-detachable connection, including but not limited to conventional fixed connection methods such as folding connection, rivet connection, bonding connection and welding connection. The detachable connection includes but is not limited to conventional detachable methods such as threaded connection, snap connection, pin connection and hinge connection. When the specific connection method is not clearly defined, it is assumed that at least one connection method can always be found in the existing connection methods to achieve the function. Those skilled in the art can choose according to their needs. For example: choose welding connection for fixed connection and hinge connection for detachable connection.

[0028] Specific implementation method 1: Combination Figure 1-Figure 7 The present embodiment is described. An improved torsion bar spring strong torque device of the present embodiment comprises a spindle mechanism 1, a tailstock mechanism 2 and a bed 3. The spindle mechanism 1 is fixedly mounted on the left end of the bed 3, and the tailstock mechanism 2 is mounted on the right end of the bed 3; the spindle mechanism 1 comprises a torque motor 4, a driving shaft 5 and a spindle seat 6. The torque motor 4 is fixedly mounted on a motor base 8 through a motor support 7, and the motor base 8 is fixedly mounted on the bed 3. The output shaft of the torque motor 4 is installed with the driving shaft 5 by a key connection. The driving shaft 5 is rotatably mounted in the spindle seat 6 through a bearing. A first square hole 9 is machined on the right end of the driving shaft 5, and a first spline sleeve 10 is installed in the first square hole 9. A first spline groove 11 is machined at the center position of the first spline sleeve 10; the tailstock mechanism 2 comprises an adjusting seat 12, a driven shaft seat 13, a driven shaft 14, an end The driven shaft seat 13 is provided with a cover 15 and a second spline sleeve 16. The adjusting seat 12 is a U-shaped seat, and two slide grooves 17 are processed on the adjusting seat 12. The driven shaft seat 13 has sliders 18 on both sides. The driven shaft seat 13 is installed in the slide grooves 17 of the adjusting seat 12 through the sliders 18. The driven shaft 14 is installed in the driven shaft seat 13 through a bearing. The right end of the driven shaft seat 13 is installed with an end cover 15. The left end of the driven shaft 14 is processed with a second square hole 19. The second spline sleeve 16 is installed in the second square hole 19. The center position of the second spline sleeve 16 is processed with a second spline groove 20. A rack 21 is installed at the bottom of the driven shaft seat 13. A second adjusting shaft 22 is rotatably installed in the adjusting seat 12. An adjusting wheel 23 is installed on a section of the second adjusting shaft 22. A gear 24 is installed at the other end of the second adjusting shaft 22, and the gear 24 is meshed with the rack 21. With such arrangement, when the torsion bar spring is processed using the torsion bar spring torsion strengthening device, the adjusting wheel 23 is rotated, and the adjusting wheel 23 drives the gear 24 to rotate through the second adjusting shaft 22, and the driven shaft seat 13 slides to the right in the slide groove 17 through the engagement of the gear 24 with the rack 21, reserving the installation space of the torsion bar spring, and then one end of the torsion bar spring to be processed is inserted into the first spline groove 11 of the first spline sleeve 10, and the other end is inserted into the second spline groove 20 of the second spline sleeve 16, and then the adjusting wheel 23 is adjusted to make the driven shaft seat 13 slide to the left. After the torsion bar spring to be processed is installed, the torque motor 4 is started, and the torque motor 4 drives the driving shaft 5 to rotate, and applies torque to the torsion bar spring through the first spline sleeve 10, completing the torsion bar spring torsion strengthening process.

[0029] Specific implementation method 2: Combination Figure 1-Figure 7This embodiment is described as an improved torsion bar spring strong torque device. The right end of the bed 3 is processed with 5 pairs of fixing holes 25, and the adjustment seat 12 is fixedly installed on the fixing holes 25 by fastening bolts. In this way, 5 pairs of fixing holes 25 are added to the equipment bed, the tailstock of the equipment is moved and adjusted, and bolts are used to fix it, and at the same time, torsion bar springs of different models and sizes are used.

[0030] Specific implementation method three: Combination Figure 1-Figure 7 The present embodiment is described as an improved torsion bar spring strong torsion device of the present embodiment, wherein two parallel slideways 26 are processed on the bed 3, and a safety protection door 27 is slidably installed in the slideway 26. With such arrangement, when the strong torsion process of the torsion bar spring is processed, the protection door 27 is used to shield the torsion bar spring, thereby improving safety.

[0031] Specific implementation method four: Combination Figure 1-Figure 7 The present embodiment is described as an improved torsion bar spring strong torsion device of the present embodiment, wherein a replaceable bracket 28 for supporting the torsion bar spring to be processed is installed in the middle position of the bed 3, and a V-shaped groove is provided on the top of the replaceable bracket 28. In this way, the replaceable bracket 28 is used to support the torsion bar spring to be processed, so as to avoid the torsion bar spring to be processed from being too long and causing torsional stress concentration and local cracking.

[0032] Specific implementation method five: Combination Figure 1-Figure 7 The present embodiment is described as an improved torsion bar spring strong torque device of the present embodiment, and the end surface of the first spline sleeve 10 is processed with a first boss 29. In this way, the first boss 29 can improve the installation efficiency of the torsion bar spring to be processed. Specifically, during installation, a section of the torsion bar spring to be processed can be placed on the first boss 29, and then the torsion bar spring can be rotated so that the spline at the end of the torsion bar spring is inserted into the first spline groove 11.

[0033] It should be noted that in the above embodiments, as long as the technical solutions are not contradictory, they can be arranged and combined, and those skilled in the art can exhaust all possibilities based on the mathematical knowledge of arrangement and combination. Therefore, the present utility model will no longer describe the technical solutions after arrangement and combination one by one, but it should be understood that the technical solutions after arrangement and combination have been disclosed by the present utility model.

[0034] This implementation is only an exemplary description of this patent and does not limit its protection scope. Those skilled in the art may also make partial changes to it, as long as they do not exceed the spirit of this patent, they are all within the protection scope of this patent.

Claims

1. An improved torsion bar spring torque device, Features: The machine comprises a spindle mechanism (1), a tailstock mechanism (2) and a bed (3), wherein the spindle mechanism (1) is fixedly mounted on the left end of the bed (3), and the tailstock mechanism (2) is mounted on the right end of the bed (3); The spindle mechanism (1) comprises a torque motor (4), a driving shaft (5) and a spindle seat (6); the torque motor (4) is fixedly mounted on a motor base (8) via a motor support (7); the motor base (8) is fixedly mounted on a bed (3); the output shaft of the torque motor (4) is mounted with the driving shaft (5) in a key connection manner; the driving shaft (5) is rotatably mounted in the spindle seat (6) via a bearing; a first square hole (9) is machined at the right end of the driving shaft (5); a first spline sleeve (10) is mounted in the first square hole (9); and a first spline groove (11) is machined at the center of the first spline sleeve (10); The tailstock mechanism (2) comprises an adjusting seat (12), a driven shaft seat (13), a driven shaft (14), an end cover (15) and a second spline sleeve (16); the adjusting seat (12) is a U-shaped seat, two slide grooves (17) are processed on the adjusting seat (12), two sides of the driven shaft seat (13) are provided with sliders (18), the driven shaft seat (13) is installed in the slide grooves (17) of the adjusting seat (12) through the sliders (18), the driven shaft (14) is installed in the driven shaft seat (13) through the bearing, and the right end of the driven shaft seat (13) is provided with an end cover (15), a second square hole (19) is processed at the left end of the driven shaft (14), a second spline sleeve (16) is installed in the second square hole (19), a second spline groove (20) is processed at the center position of the second spline sleeve (16), a rack (21) is installed at the bottom of the driven shaft seat (13), a second adjustment shaft (22) is rotatably installed in the adjustment seat (12), an adjustment wheel (23) is installed at one section of the second adjustment shaft (22), a gear (24) is installed at the other end of the second adjustment shaft (22), and the gear (24) is meshed with the rack (21).

2. An improved torsion bar spring torque strengthening device according to claim 1, Features: The right end of the bed (3) is processed with five pairs of fixing holes (25), and the adjustment seat (12) is fixedly mounted on the fixing holes (25) by means of fastening bolts.

3. An improved torsion bar spring torque strengthening device according to claim 1, Features: The bed (3) is processed with two parallel slideways (26), and a safety protection door (27) is slidably installed in the slideway (26).

4. An improved torsion bar spring torque strengthening device according to claim 1, Features: A replaceable bracket (28) for supporting a torsion bar spring to be processed is installed in the middle of the bed (3), and a V-shaped groove is provided on the top of the replaceable bracket (28).

5. An improved torsion bar spring torque strengthening device according to claim 1, Features: The end surface of the first spline sleeve (10) is processed with a first boss (29).

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