A wear-resistant half-shaft gear

Abstract

The present invention belongs to the technical field of half-shaft gears, and in particular relates to a wear-resistant half-shaft gear, comprising: a gear shaft, the gear shaft having a shaft hole, and a spline groove arranged in the shaft hole; a gear body, the outer side of the gear body being evenly provided with gear teeth, and the gear body being arranged at one end of the gear shaft and detachably connected to the gear shaft; a receiving assembly, wherein a receiving assembly is provided at the connection between the gear shaft and the gear body; wherein a stepped hole portion is provided at one end of the gear body connected to the gear shaft, and a stepped shaft portion is provided at one end of the gear shaft connected to the gear body, and the stepped shaft portion is inserted into the stepped hole portion and connected through the receiving assembly.

Description

Technical Field

[0001] The present invention belongs to the technical field of side shaft gears, and in particular relates to a wear-resistant side shaft gear. Background Art

[0002] Axle gears are important gears in mechanical transmissions and are used to transmit the power of the main power shaft. Axle gears are a type of bevel gear with a structure consisting of tapered outer teeth and an inner splined shaft hole. Existing gears are mainly used to transmit power when in use. Therefore, if the gears are suddenly rotated or stopped by force during use, fatigue damage to the gears may occur after long-term use. Summary of the Invention

[0003] The purpose of the present invention is to provide a gear half-shaft gear with vibration and wear resistance functions in order to solve the above-mentioned technical problems.

[0004] In view of this, the present invention provides a wear-resistant side gear, comprising:

[0005] The gear shaft has a shaft hole with a spline groove arranged in the shaft hole;

[0006] The gear body has gear teeth evenly arranged on the outside of the gear body, and the gear body is arranged at one end of the gear shaft and is detachably connected to the gear shaft;

[0007] A receiving assembly is provided at the connection between the gear shaft and the gear body;

[0008] One end of the gear body connected to the gear shaft is provided with a stepped hole portion, and one end of the gear shaft connected to the gear body is provided with a stepped shaft portion, which is inserted into the stepped hole portion and connected through a receiving assembly.

[0009] In the above technical solution, further, the stepped hole portion includes:

[0010] A first hole portion is located in the middle of the gear body, and a stepped countersunk portion communicating with the first hole portion is provided at one end of the gear body away from the gear shaft;

[0011] A second hole portion, the second hole portion is located on one end surface of the gear body connected to the gear shaft, and has a cross-sectional diameter larger than the first hole portion;

[0012] The stepped shaft includes:

[0013] a first shaft portion, the first shaft portion extending into the counterbore portion through the first hole portion and being in clearance fit with an inner wall of the counterbore portion;

[0014] a second shaft portion, the second shaft portion being in clearance fit with the second hole portion;

[0015] The components include:

[0016] The first adaptive mechanism, the axial floating mechanism is sleeved on the first shaft portion and is located between the first hole portion and the second hole portion and respectively the second hole portion and the second shaft portion;

[0017] The second adaptive mechanism is sleeved on the first shaft portion, located in the first hole portion and respectively connected to the first hole portion and the first shaft portion.

[0018] In the above technical solution, further, the first adaptive mechanism includes:

[0019] a supporting connecting plate, the supporting connecting plate abutting against the end surface of the second hole portion and being fixed to the end surface of the second hole portion by a plurality of end surface bolts evenly distributed along the circumference;

[0020] An upper supporting structure is provided at the upper end of the supporting connecting plate;

[0021] A lower supporting structure is provided at the lower end of the supporting connecting plate;

[0022] An upper connecting plate is provided at the upper end of the upper supporting structure and is fixed to the end face of the second shaft portion by a plurality of placement bolts evenly distributed around the circumference;

[0023] There are installation holes that pass through the upper connecting plate, the upper supporting structure, the supporting connecting plate and the lower supporting structure, and the installation bolts are set on the installation holes; the installation hole is located at one end of the upper supporting plate and is countersunk and abuts against the screw head of the installation bolt, and the installation holes on the connecting plate and the second shaft are all threaded holes, and the upper supporting structure, the lower supporting structure and the supporting connecting plate are all matched with the bolt clearance through the installation holes, and the connecting plate is slidably connected with the upper connecting plate and the end face of the second shaft respectively through the cooperation of the upper supporting structure and the lower supporting structure.

[0024] In the above technical solution, further, the first adaptive mechanism also includes:

[0025] An inner support sleeve is sleeved on the first shaft portion, and the lower end of the inner support sleeve abuts against the end surface of the second shaft portion, and the upper support structure, the lower support structure and the support connecting plate are all sleeved outside the inner support sleeve, and the lower end surface of the upper connecting plate abuts against the upper end of the inner support sleeve;

[0026] The upper support structure includes:

[0027] An upper support plate, the upper support plate sleeve is arranged outside the inner support sleeve and is located between the upper connecting plate and the supporting connecting plate;

[0028] The upper support ball is provided with a plurality of upper ball holes evenly distributed along the circumference on the upper support plate, each upper ball hole is provided with an upper support ball, and the ball diameter of the upper support ball is greater than the thickness of the upper support plate;

[0029] The lower support structure includes:

[0030] A lower support plate is sleeved outside the inner support sleeve and is located between the support connecting plate and the end surface of the second shaft portion. The end surface of the second shaft portion is provided with a lower support groove that is clearance-matched with the lower support plate;

[0031] The lower support ball is provided with a plurality of lower ball holes evenly distributed along the circumference on the lower support plate, each lower ball hole is provided with a lower support ball, and the ball diameter of the lower support ball is greater than the thickness of the lower support plate;

[0032] The upper supporting plate and the upper connecting plate are both clearance-matched with the first hole portion; and the supporting connecting plate is slidingly matched with the upper connecting plate and the end surface of the second shaft portion respectively through the upper supporting ball and the lower supporting ball.

[0033] In the above technical solution, further, the first adaptive mechanism also includes:

[0034] Anti-stretching components, wherein a plurality of anti-stretching components evenly distributed along a circumference are provided between the second hole portion and the second shaft portion;

[0035] A plurality of compression components are provided between the second hole portion and the second shaft portion and are evenly distributed along the circumference, wherein the tensile components, compression components and end bolts are alternately distributed and located at the outer edge of the lower support groove;

[0036] A stepped bolt hole is provided on the second shaft portion from one end surface connected to the second hole portion to the other side. The stepped bolt hole includes an inwardly facing matching hole portion provided on the end surface of the second shaft portion connected to the second hole portion. The threaded rod of the end face bolt is located in the matching hole portion and threadedly engaged with the matching hole portion. A mounting hole portion is provided in the middle of the matching hole portion, which passes through the second shaft portion. The mounting hole portion is clearance-matched with the screw head of the end face bolt.

[0037] An end buffer sheet is provided between the outer edge of the end surface of the second shaft portion and the end surface of the second hole portion;

[0038] a side buffer sheet provided between a side wall of the second shaft portion and a hole wall of the second hole portion;

[0039] The spring washers are sleeved on the end face bolts with a plurality of stacked spring washers, one end of the stacked spring washers is against the end face of the second hole portion, and the other end is against the screw head of the end face bolt.

[0040] In the above technical solution, further, the anti-stretching component includes:

[0041] The anti-tensile mounting hole extends from the outer end surface of the second shaft portion, penetrates the second shaft portion and the supporting connecting plate, and then extends from the end surface of the second hole portion into the gear body;

[0042] A tensile sleeve is inserted into the tensile mounting hole at the position between the second hole portion and the supporting connecting plate. A tensile stepped hole is formed inwardly on one side of the compression sleeve close to the second hole portion, and a tensile support hole is provided inwardly on the other end face of the tensile sleeve;

[0043] A tensile support rod is provided in the tensile mounting hole, and both ends of the tensile support rod extend into the tensile stepped hole and the tensile support hole respectively;

[0044] The upper support block, the tensile stepped hole includes a support hole portion with decreasing diameter and an upper tensile hole portion from the end surface inward, the support block is arranged in the support hole portion and is spherical, and is threadedly connected to the end surface of the tensile support rod;

[0045] An upper support spring is provided in the anti-tensile stepped hole, and the upper support spring extends from the bottom of the upper anti-tensile hole portion into the support hole portion and abuts against the upper support block;

[0046] The lower support block, the tensile support hole includes a lower tensile hole portion and an upper buffer hole portion whose diameters decrease gradually from the end surface to the inside. The lower support block is spherical and is arranged on the outer end surface of the second shaft portion. The outer end surface of the second shaft portion is provided with a matching groove for the free rolling of the lower support block, and the other end of the tensile support rod is slidably matched with the lower support block;

[0047] A lower support spring is provided on the anti-tensile support hole, and the lower support spring extends from the bottom end surface of the lower anti-tensile hole portion to the anti-tensile mounting hole on the second shaft portion and abuts against the lower support block;

[0048] The anti-tension sleeve is supported at the position of the second hole portion and the support connecting plate by the elastic force of the lower support spring, and the anti-tension support rod passes through the middle of the lower support block and a limited position limiting portion is provided at the bottom.

[0049] In the above technical solution, further, the pressure-resistant component includes:

[0050] A pressure-resistant mounting hole extends from an end surface of the supporting connecting plate close to the second shaft portion to an end surface of the second hole portion and into the gear body;

[0051] A compression support ball is provided in the compression support hole and can be freely fixed therein;

[0052] A pressure-resistant support spring is provided in the pressure-resistant mounting hole, and both ends of the pressure-resistant support spring respectively abut against the bottom of the pressure-resistant mounting hole and the pressure-resistant support ball, and the pressure-resistant support ball abuts against the end surface of the second shaft portion under the elastic support of the pressure-resistant support spring;

[0053] The conical surface placement block is provided with a groove on the end face of the second shaft portion and at the position where it abuts the pressure-resistant support ball. The conical surface placement block is provided on the groove. The second shaft portion abuts the pressure-resistant support ball through the conical surface placement block, and a conical recessed groove for the pressure-resistant support ball to roll freely is provided on the side where the conical surface placement block abuts the pressure-resistant support ball, and the conical recessed groove is coaxially arranged with the pressure-resistant mounting hole.

[0054] In the above technical solution, further, the second adaptive mechanism includes:

[0055] An outer support ring is sleeved in the first hole portion, and the outer wall of the outer support ring is a regular polygon, and the inner wall of the first hole portion is a regular polygon hole adapted to the outer wall of the outer support ring;

[0056] An inner support ring, which is sleeved on the first shaft portion, and the inner wall of the inner support ring is a regular polygon, and the outer wall of the first shaft portion is a regular polygon that matches the inner wall of the inner support ring;

[0057] Adaptive spring, cylindrical support edges are formed on both sides of the inner support ring, and adaptive springs are provided on both sides of the inner support ring, and the adaptive spring on one side abuts against the end face of the inner support ring and the end face of the first hole portion, and the adaptive spring on the other side abuts against the end face of the support ring and the end face of the upper connecting plate;

[0058] An outer support assembly, wherein a plurality of outer support assemblies are evenly distributed around the circumference and connected to the end surface of the first hole portion.

[0059] A torsion buffer component is provided between the inner support ring and the outer support ring, and a plurality of torsion buffer components are evenly distributed along the circumference.

[0060] In the above technical solution, further, the outer support assembly includes:

[0061] An inner annular column, the inner annular column is located between the outer support ring and the first hole portion, and its two ends respectively abut against the end surface of the outer support ring and the first hole portion;

[0062] An outer annular column, the outer annular column is located at an end of the outer support ring away from the first hole portion, and one end of the outer annular column abuts against the outer support ring;

[0063] an outer support bolt, the outer support bolt passing through the outer annular column, the outer support ring and the inner annular column and abutting against the bottom end surface of the first hole portion;

[0064] The other end of the outer annular column abuts against the screw heads of the inner and outer supporting bolts; and the outer annular column, the inner annular column, the inner supporting sleeve, the end buffer sheet and the side buffer sheet are all made of elastic material.

[0065] In the above technical solution, further, the torsion buffer assembly is arranged obliquely, comprising:

[0066] The middle buffer part is formed by plugging two mutually symmetrical middle buffer rods;

[0067] An intermediate support spring is provided in the middle of the intermediate buffer portion;

[0068] Side hinge connection parts are respectively threadedly connected to the side hinge connection parts on both sides of the middle buffer part, and the outer support ring and the inner support ring are respectively provided with connection blocks hingedly connected to the side hinge connection parts;

[0069] Side buffer assemblies are respectively provided between the two sides of the middle buffer portion and the side hinge connection portions on both sides thereof;

[0070] The middle buffer rod includes a supporting part and a connecting part. The supporting part has a circular cross-section and is provided with a plurality of fan-shaped grooves evenly distributed along the circumference. The connecting part is composed of a fan-shaped connecting rod arranged at one end of the supporting part and having the same cross-section as the fan-shaped groove and alternately distributed with the fan-shaped groove. A head connecting external thread is provided on the outside of the connecting part. One of the two plug-in middle buffer rods is inserted into the fan-shaped groove on the other middle buffer rod through the supporting part, and the ends of the supporting parts on the two middle buffer rods that are not provided with the connecting rod are arranged relative to each other, and the middle support spring is arranged between the two supporting parts; the side buffer assembly includes two side support rings sleeved on the connecting part and a side support spring arranged between the two side support rings.

[0071] The beneficial effects of the present invention are:

[0072] 1. The setting of the first adaptive mechanism can play a role in combining axial vibration and radial vibration, thereby improving the structural strength of the side gear;

[0073] 2. The setting of the second adaptive mechanism can further integrate axial vibration and radial vibration, thereby greatly improving the overall practical life of the half-shaft gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] Figure 1 It is a structural schematic diagram of the present invention;

[0075] Figure 2 is a top view of the present invention;

[0076] Figure 3 yes Figure 2 Schematic diagram of the cross section at AA in the middle;

[0077] Figure 4 yes Figure 2 Schematic diagram of the cross section at the middle BB;

[0078] Figure 5 yes Figure 2 Schematic diagram of the cross section at CC;

[0079] Figure 6 yes Figure 5 Schematic diagram of the cross section at point Ⅰ;

[0080] Figure 7 is a schematic diagram of the partial structure of the second adaptive mechanism in the present invention;

[0081] Figure 8 It is a structural schematic diagram of the middle buffer rod in the present invention;

[0082] Figure 9 It is a structural schematic diagram of the middle buffer portion in the present invention;

[0083] Figure 10 It is a partial structural diagram of the torsion buffer assembly in the present invention;

[0084] The symbols in the figure are: 1-gear shaft, 2-gear body, 3-first hole portion, 4-second hole portion, 5-first shaft portion, 6-second shaft portion, 7-support connecting plate, 8-end bolt, 9-upper connecting plate, 10-placement bolt, 11-inner support sleeve, 12-upper support plate, 13-upper support ball, 14-lower support plate, 15-lower support ball, 16-step bolt hole, 17-end buffer plate, 18-side buffer plate, 19-spring washer, 20-tension sleeve, 21-tension support rod, 22-upper support Support block, 23-upper support spring, 24-lower support block, 25-lower support spring, 26-anti-compression support ball, 27-anti-compression support spring, 28-conical placement block, 30-conical groove, 31-outer support ring, 32-inner support ring, 33-adaptive spring, 34-inner annular column, 35-outer annular column, 36-outer support bolt, 37-middle buffer rod, 37a-support part, 37b-connecting rod, 37c-fan-shaped groove, 38-middle support spring, 39-side hinge connection part, 40-side support spring. DETAILED DESCRIPTION

[0085] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0086] Example 1:

[0087] This embodiment provides a wear-resistant side gear, comprising:

[0088] Gear shaft 1, gear shaft 1 has a shaft hole, and a spline groove is provided in the shaft hole;

[0089] The gear body 2 has gear teeth evenly arranged on the outside of the gear body 2, and the gear body 2 is arranged at one end of the gear shaft 1 and is detachably connected to the gear shaft 1;

[0090] A receiving assembly is provided at the connection between the gear shaft 1 and the gear body 2;

[0091] The gear body 2 is provided with a stepped hole portion at one end connected to the gear shaft 1, and the gear shaft 1 is provided with a stepped shaft portion at one end connected to the gear body 2. The stepped shaft portion is inserted into the stepped hole portion and connected through a receiving assembly.

[0092] In this embodiment, the gear body 2 and the gear shaft 1 are both made of metal materials, and a receiving assembly is provided between the gear shaft 1 and the gear body 2. The receiving assembly integrates certain axial and radial vibrations, thereby reducing fatigue wear of the gear and thereby improving the overall service life of the gear.

[0093] Example 2:

[0094] This embodiment provides a wear-resistant half-axle gear, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0095] The stepped hole section includes:

[0096] A first hole portion 3 is located in the middle of the gear body 2, and a stepped countersunk portion communicating with the first hole portion 3 is provided at one end of the gear body 2 away from the gear shaft 1;

[0097] The second hole portion 4 is located on the end surface of the gear body 2 connected to the gear shaft 1, and has a cross-sectional diameter larger than the first hole portion 3;

[0098] The stepped shaft includes:

[0099] a first shaft portion 5, the first shaft portion 5 extending through the first hole portion 3 into the counterbore portion and having a clearance fit with an inner wall of the counterbore portion;

[0100] a second shaft portion 6 , which is clearance-fitted with the second hole portion 4 ;

[0101] The components include:

[0102] The first adaptive mechanism, the axial floating mechanism is sleeved on the first shaft portion 5 and is located between the first hole portion 3 and the second hole portion 4 and respectively the second hole portion 4 and the second shaft portion 6;

[0103] The second adaptive mechanism is sleeved on the first shaft portion 5, located in the first hole portion 3 and respectively connecting the first hole portion 3 and the first shaft portion 5.

[0104] In this embodiment, the first hole portion 3 cooperates with the first shaft portion 5 to accommodate the second adaptive mechanism, thereby providing installation space for the second adaptive mechanism, and the second hole portion 4, the first hole portion 3 and the second shaft portion 6 cooperate to accommodate the first adaptive mechanism, thereby providing installation space for the first adaptive mechanism; and the setting of the first adaptive mechanism can integrate axial vibration and radial vibration, thereby improving the structural strength of the half-shaft gear, and the setting of the second adaptive mechanism can further integrate axial vibration and radial vibration, thereby greatly improving the overall practical life of the half-shaft gear.

[0105] Example 3:

[0106] This embodiment provides a wear-resistant half-axle gear, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0107] The first adaptive mechanism includes:

[0108] a supporting connecting plate 7, the supporting connecting plate 7 abutting against the end surface of the second hole portion 4 and being fixed to the end surface of the second hole portion 4 by a plurality of end surface bolts 8 evenly distributed around the circumference;

[0109] An upper supporting structure is provided at the upper end of the supporting connecting plate 7;

[0110] A lower supporting structure is provided at the lower end of the supporting connecting plate 7;

[0111] An upper connecting plate 9 is provided at the upper end of the upper supporting structure. The upper connecting plate 9 is fixed to the end surface of the second shaft portion 6 by a plurality of placement bolts 10 evenly distributed around the circumference.

[0112] There are installation holes passing through the upper connecting plate 9, the upper supporting structure, the supporting connecting plate 7 and the lower supporting structure, and the installation bolts 10 are arranged on the installation holes; the installation hole is located at one end of the upper supporting plate 12 and is a countersunk hole and is against the screw head of the installation bolt 10, and the installation holes on the connecting plate and the second shaft portion 6 are all threaded holes, and the upper supporting structure, the lower supporting structure and the supporting connecting plate 7 are all matched with the bolt clearance through the installation holes, and the connecting plate is slidably connected with the upper connecting plate 9 and the end face of the second shaft portion 6 respectively through the cooperation of the upper supporting structure and the lower supporting structure.

[0113] In this embodiment, the support connecting plate 7 is fixedly connected to the end face of the second hole portion 4 of the gear body 2 by the end face bolt 8, thereby fixing the support connecting plate 7, and the upper connecting plate 9 is fixedly connected to the second shaft portion 6 on the gear shaft 1 by the placement bolt 10, and the placement gear passes through the support connecting plate 7 so that the support connecting plate 7 is fixed to the gear shaft 1, thereby completing the connection and fixation between the gear body 2 and the gear shaft 1; and upper supporting structures and lower supporting structures are provided on the upper and lower sides of the support plate, and the support connecting plate 7 is slidably fitted between the upper connecting plate 9 and the lower second shaft portion 6 through the upper supporting structure and the lower supporting structure, so that the gear body 2 can float radially relative to the gear shaft 1, so as to achieve a good radial floating buffering and vibration reduction effect.

[0114] Example 4:

[0115] This embodiment provides a wear-resistant half-axle gear, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0116] The first adaptive mechanism also includes:

[0117] The inner support sleeve 11 is sleeved on the first shaft portion 5, and the lower end of the inner support sleeve 11 abuts against the end surface of the second shaft portion 6, and the upper support structure, the lower support structure and the support connecting plate 7 are all sleeved outside the inner support sleeve 11, and the lower end surface of the upper connecting plate 9 abuts against the upper end of the inner support sleeve 11;

[0118] The upper support structure includes:

[0119] The upper support plate 12 is sleeved outside the inner support sleeve 11 and is located between the upper connecting plate 9 and the supporting connecting plate 7;

[0120] The upper support ball 13 is provided with a plurality of upper ball holes evenly distributed on the circumference on the upper support plate 12, each upper ball hole is provided with an upper support ball 13, and the ball diameter of the upper support ball 13 is greater than the thickness of the upper support plate 12;

[0121] The lower support structure includes:

[0122] The lower support plate 14 is sleeved outside the inner support sleeve 11 and is located between the support connecting plate 7 and the end surface of the second shaft portion 6. The end surface of the second shaft portion 6 is provided with a lower support groove that is clearance-matched with the lower support plate 14;

[0123] The lower support ball 15 is provided with a plurality of lower ball holes evenly distributed on the circumference on the lower support plate 14, each lower ball hole is provided with a lower support ball 15, and the ball diameter of the lower support ball 15 is greater than the thickness of the lower support plate 14;

[0124] The upper support plate 12 and the upper connecting plate 9 are both clearance-fitted with the first hole portion 3 ; and the supporting connecting plate 7 is slidingly fitted with the upper connecting plate 9 and the end surface of the second shaft portion 6 respectively through the upper supporting balls 13 and the lower supporting balls 15 .

[0125] In this embodiment, the inner support sleeve 11 is made of an elastic organic material, and the inner support sleeve 11 is used to limit the inner wall of the support connecting plate 7, the upper support structure, the lower support structure and the upper connecting plate 9, thereby preventing the support connecting plate 7, the upper support structure, the lower support structure and the upper connecting plate 9 from having excessive radial displacement; and the upper support plate 12 in the upper support structure is used to accommodate and limit the upper support balls 13, thereby preventing the upper support balls 13 from being misplaced, and at the same time, the upper support balls 13 ensure that the support connecting plate 7 can slide radially relative to the upper connecting plate 9, and at the same time, reduce the wear of the support connecting plate 7 and the upper connecting plate 9; and the lower support plate 14 in the lower support structure is used to accommodate and limit the lower support balls 15, thereby preventing the lower support balls 15 from being misplaced, and at the same time, the lower support balls 15 ensure that the support connecting plate 7 can slide radially relative to the second shaft portion 6, and at the same time reduce the wear of the support connecting plate 7 and the second shaft portion 6. The lower support groove provided on the second shaft portion 6 can limit the lower support plate 14 , thereby ensuring that the lower support plate 14 does not undergo a large displacement.

[0126] Example 5:

[0127] This embodiment provides a wear-resistant half-axle gear, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0128] The first adaptive mechanism also includes:

[0129] Anti-stretching components, a plurality of anti-stretching components evenly distributed along the circumference are provided between the second hole portion 4 and the second shaft portion 6;

[0130] Compression components, a plurality of compression components evenly distributed along the circumference are provided between the second hole portion 4 and the second shaft portion 6, wherein the tensile components, compression components and end bolts 8 are alternately distributed and located at the outer edge of the lower support groove;

[0131] A stepped bolt hole 16 is provided on the second shaft portion 6 from one end surface connected to the second hole portion 4 to the other side. The stepped bolt hole 16 includes an inwardly facing mating hole portion provided on the end surface of the second shaft portion 6 connected to the second hole portion 4. The threaded rod of the end face bolt 8 is located in the mating hole portion and threadedly engaged with the mating hole portion. A mounting hole portion is provided in the middle of the mating hole portion, which passes through the second shaft portion 6. The mounting hole portion is clearance-matched with the screw head of the end face bolt 8.

[0132] An end buffer piece 17 is provided between the outer edge of the end surface of the second shaft portion 6 and the end surface of the second hole portion 4.

[0133] A side buffer sheet 18 is provided between the side wall of the second shaft portion 6 and the hole wall of the second hole portion 4;

[0134] The spring washers 19 are sleeved on the end bolts 8 in a plurality of stacked spring washers 19 . One end of the stacked spring washers 19 abuts against the end face of the second hole portion 4 , and the other end abuts against the screw head of the end bolt 8 .

[0135] In this embodiment, the anti-tensile component provided therein can play a good anti-tensile effect between the gear body 2 and the gear shaft 1, and the provision of the anti-compression component can play a good anti-compression effect between the gear body 2 and the gear shaft 1; and the provided stepped bolt hole 16 can not only facilitate the placement of the end bolt 8, but also limit the radial floating space of the second shaft portion 6 through the clearance fit between the screw head of the end bolt 8 and the mounting hole; and the provided end buffer plate 17 and side buffer plate 18 can limit the floating gap of the gear body 2 and the gear shaft 1 when the clearance fits, and at the same time can play a good buffering and shock-absorbing effect; and the provided spring washer 19 can not only prevent the end spring from loosening, but also prevent the end spring from colliding with the gear body 2 when the gear body 2 and the gear shaft 1 float.

[0136] Example 6:

[0137] This embodiment provides a wear-resistant half-axle gear, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0138] The stretch-resistant components include:

[0139] The tensile mounting hole extends from the outer end surface of the second shaft portion 6, penetrates the second shaft portion 6 and the supporting connecting plate 7, and then extends from the end surface of the second hole portion 4 into the gear body 2;

[0140] The tensile sleeve 20 is inserted into the tensile mounting hole at the position between the second hole portion 4 and the supporting connecting plate 7. The compression sleeve is provided with a tensile stepped hole on one side of the second hole portion 4, and a tensile support hole is provided inward on the other end face of the tensile sleeve 20.

[0141] A tensile support rod 21 is provided in the tensile mounting hole, and both ends of the tensile support rod 21 extend into the tensile stepped hole and the tensile support hole respectively;

[0142] The upper support block 22 has a tensile stepped hole which includes a support hole portion and an upper tensile hole portion with decreasing diameters from the end surface inward. The support block is arranged in the support hole portion and is spherical and is threadedly connected to the end surface of the tensile support rod 21.

[0143] An upper support spring 23 is provided in the anti-tensile stepped hole. The upper support spring 23 extends from the bottom of the upper anti-tensile hole portion into the support hole portion and abuts against the upper support block 22;

[0144] The lower support block 24, the tensile support hole includes a lower tensile hole portion and an upper buffer hole portion with decreasing diameters from the end surface inward. The lower support block 24 is spherical and is arranged on the outer end surface of the second shaft portion 6. The outer end surface of the second shaft portion 6 is provided with a matching groove for the free rolling of the lower support block 24, and the other end of the tensile support rod 21 is slidably matched with the lower support block 24;

[0145] A lower support spring 25 is provided on the tensile support hole. The lower support spring 25 extends from the bottom end surface of the lower tensile hole portion to the tensile mounting hole on the second shaft portion 6 and abuts against the lower support block 24;

[0146] The anti-tension sleeve 20 is supported at the position of the second hole portion 4 and the supporting connecting plate 7 by the elastic force of the lower support spring 25, and the anti-tension support rod 21 passes through the middle of the lower support block 24 and is provided with a limited position limit portion at the bottom.

[0147] In this embodiment, since the anti-tension sleeve 20 is supported by the second hole portion 4 and the support connecting plate 7 under the support of the lower support spring 25, the anti-tension sleeve 20 will not be deformed when radial floating occurs in the half-shaft gear; under normal circumstances, the upper support spring 23 and the lower support spring 25 are both subjected to a small compression force, and when axial tension occurs between the gear body 2 and the gear shaft 1, under the action of the lower support spring 25, the anti-tension support rod 21 will produce axial tensile displacement with the anti-tension sleeve 20, and at the same time accumulate a reset deformation force; when the anti-tension support rod 21 will produce axial contraction displacement with the anti-tension sleeve 20, it will cause the anti-tension support rod 21 to extend out of the lower support block 24 at one end of the lower support block 24, and at the same time, the upper support spring 23 and the lower support spring 25 will also be compressed, thereby accumulating a reset deformation force, so that the anti-tension component can play both an anti-tension effect and a certain anti-compression effect, thereby ensuring the floating buffering and shock absorption effect of the entire gear, so as to improve the service life of the entire half-shaft gear.

[0148] Example 7:

[0149] This embodiment provides a wear-resistant half-axle gear, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0150] Pressure-resistant components include:

[0151] The pressure-resistant mounting hole extends from the end surface of the supporting connecting plate 7 close to the second shaft portion 6 to the end surface of the second hole portion 4 and extends into the gear body 2;

[0152] The pressure-resistant support ball 26 is provided in the pressure-resistant support hole and can be freely fixed.

[0153] A pressure-resistant support spring 27 is provided in the pressure-resistant mounting hole, and the two ends of the pressure-resistant support spring 27 respectively abut against the bottom of the pressure-resistant mounting hole and the pressure-resistant support ball 26, and the pressure-resistant support ball 26 abuts against the end surface of the second shaft portion 6 under the elastic support of the pressure-resistant support spring 27;

[0154] The conical surface placement block 28 is provided with a groove on the end face of the second shaft portion 6 and at the position where it abuts the pressure-resistant support ball 26. The conical surface placement block 28 is provided on the groove. The second shaft portion 6 abuts the pressure-resistant support ball 26 through the conical surface placement block 28, and a conical sink groove 30 for the pressure-resistant support ball 26 to roll freely is provided on the side where the conical surface placement block 28 abuts the pressure-resistant support ball 26, and the conical sink groove 30 is coaxially arranged with the pressure-resistant mounting hole.

[0155] In this embodiment, the conical surface mounting block 28 can be made of PP material. Under normal circumstances, the pressure-resistant support spring 27 is subjected to a certain compression force; the provided pressure-resistant support ball 26 can make the pressure-resistant support ball 26 lean against the conical surface mounting block 28 through the pressure-resistant support spring 27 when the half-shaft gear is axially compressed, and accumulate the reset deformation force by compressing the pressure-resistant support spring 27 to facilitate reset; when the half-shaft gear is axially stretched, the compressed pressure-resistant spring will release the deformation force, thereby prompting the pressure-resistant support ball 26 to firmly press against the conical surface mounting block 28; and when the gear body 2 and the gear shaft 1 are radially offset, the pressure-resistant support ball 26 will be driven to roll on the conical groove 30, and in order to maintain stability, the pressure-resistant support ball 26 drives the gear body 2 or the gear shaft 1 to perform radial displacement to prompt the pressure-resistant support ball 26 to remain in the middle of the conical groove 30, thereby also having a certain anti-stretching and anti-compression effect, and also having a certain axial floating effect.

[0156] Example 8:

[0157] This embodiment provides a wear-resistant half-axle gear, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0158] The second adaptive mechanism includes:

[0159] The outer support ring 31 is sleeved in the first hole portion 3, and the outer wall of the outer support ring 31 is a regular polygon, and the inner wall of the first hole portion 3 is a regular polygon hole adapted to the outer wall of the outer support ring 31;

[0160] The inner support ring 32 is sleeved on the first shaft portion 5, and the inner wall of the inner support ring 32 is a regular polygon, and the outer wall of the first shaft portion 5 is a regular polygon that matches the inner wall of the inner support ring 32;

[0161] Adaptive spring 33, cylindrical support edges are formed on both sides of the inner support ring 32, and adaptive springs 33 are provided on both sides of the inner support ring 32, and the adaptive spring 33 on one side abuts against the end face of the inner support ring 32 and the end face of the first hole portion 3, and the adaptive spring 33 on the other side abuts against the end face of the support ring and the end face of the upper connecting plate 9;

[0162] External support components, a plurality of external support components evenly distributed around the circumference and connected to the end surface of the first hole portion 3 are provided on the external support ring 31;

[0163] Torsion buffer components: A plurality of torsion buffer components evenly distributed along the circumference are provided between the inner support ring 32 and the outer support ring 31.

[0164] In this embodiment, the outer support ring 31 is used to limit the cooperation with the first hole portion 3 of the gear body 2, and the inner support ring 32 is used to limit the cooperation with the first shaft portion 5 of the gear shaft 1, so as to prevent the outer support ring 31 or the support ring from rotating and affecting the buffering and anti-vibration effect of the torsion buffer assembly; and the provision of the adaptive spring 33 can provide good elastic support for the inner support ring 32, and the provision of the outer support assembly can provide good elastic support for the outer support ring 31, thereby reducing the impact of axial displacement of the half-shaft gear on the performance of the torsion buffer assembly.

[0165] Example 9:

[0166] This embodiment provides a wear-resistant half-axle gear, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0167] The external support assembly includes:

[0168] The inner annular column 34 is located between the outer support ring 31 and the first hole portion 3, and its two ends respectively abut against the end surface of the outer support ring 31 and the first hole portion 3;

[0169] An outer annular column 35 , the outer annular column 35 is located at an end of the outer support ring 31 away from the first hole portion 3 , and one end of the outer annular column abuts against the outer support ring 31 ;

[0170] An outer support bolt 36 , which passes through the outer annular column 35 , the outer support ring 31 , and the inner annular column 34 and abuts against the bottom end surface of the first hole portion 3 ;

[0171] The other end of the outer annular column 35 abuts against the screw heads of the inner and outer support bolts 36 ; and the outer annular column 35 , the inner annular column 34 , the inner support sleeve 11 , the end buffer sheet 17 and the side buffer sheet 18 are all made of elastic material.

[0172] In this embodiment, the inner annular column 34 and the outer annular column 35 provide good support for the outer support ring 31 on both sides thereof, and the provided outer support bolts 36 can provide good installation and fixing effects, thereby further ensuring the stability of the installation of the outer support ring 31.

[0173] Example 10:

[0174] This embodiment provides a wear-resistant half-axle gear, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0175] The torsion buffer assembly is arranged obliquely and comprises:

[0176] The middle buffer portion is formed by plugging two mutually symmetrical middle buffer rods 37;

[0177] An intermediate support spring 38 is provided in the middle of the intermediate buffer portion;

[0178] Side hinge connection parts 39 are respectively threadedly connected to the side hinge connection parts 39 on both sides of the middle buffer part, and the outer support ring 31 and the inner support ring 32 are respectively provided with connection blocks hingedly connected to the side hinge connection parts 39;

[0179] Side buffer assemblies are respectively provided between the two sides of the middle buffer portion and the side hinge connection portions 39 on both sides thereof;

[0180] The middle buffer rod 37 includes a support portion 3a and a connecting portion. The support portion 3a has a circular cross-section and is provided with a number of fan-shaped grooves 37c evenly distributed along the circumference. The connecting portion is composed of a fan-shaped connecting rod 37b arranged at one end of the support portion 3a and having the same cross-section as the fan-shaped groove 37c and alternately distributed with the fan-shaped groove 37c. A head connecting external thread is provided on the outside of the connecting portion. One of the two plug-in middle buffer rods 37 is inserted into the fan-shaped groove 37c on the other middle buffer rod 37 through the support portion 3a, and the ends of the support portions 3a on the two middle buffer rods 37 that are not provided with the connecting rod 37b are arranged relative to each other, and the middle support spring 38 is arranged between the two support portions 3a; the side buffer assembly includes two side support rings sleeved on the connecting portion and a side support spring 40 arranged between the two side support rings.

[0181] In this embodiment, the two intermediate buffer rods 37 will squeeze the intermediate support spring 38 when stretched, and the two intermediate support rods will squeeze the side buffer assembly when compressed, so that the torsion buffer assembly can play a bidirectional anti-vibration effect. At the same time, due to the inclined setting of the torsion, the torsion buffer assembly can better absorb the torsion and amplitude generated in the clockwise and counterclockwise directions, thereby better playing an anti-vibration effect; and the side hinge connection part 39 provided can facilitate the connection between the two ends of the torsion buffer assembly and the outer support ring 31 and the inner support ring 32.

[0182] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A wear-resistant side gear, characterized in that: include: A gear shaft (1), wherein the gear shaft (1) has a shaft hole, and a spline groove is provided in the shaft hole; A gear body (2), wherein gear teeth are evenly arranged on the outer side of the gear body (2), and the gear body (2) is arranged at one end of the gear shaft (1) and is detachably connected to the gear shaft (1); A receiving assembly is provided at the connection between the gear shaft (1) and the gear body (2); One end of the gear body (2) connected to the gear shaft (1) is provided with a stepped hole portion, and one end of the gear shaft (1) connected to the gear body (2) is provided with a stepped shaft portion, and the stepped shaft portion is inserted into the stepped hole portion and connected to the receiving member; The stepped hole portion includes: a first hole portion (3), the first hole portion (3) being located in the middle of the gear body (2), and a stepped countersunk portion communicating with the first hole portion (3) being provided at one end of the gear body (2) away from the gear shaft (1); A second hole portion (4), the second hole portion (4) being located on an end surface of the gear body (2) connected to the gear shaft (1), and having a cross-sectional diameter larger than that of the first hole portion (3); The stepped shaft portion comprises: a first shaft portion (5), the first shaft portion (5) extending into the counterbore portion through the first hole portion (3) and being in clearance fit with the inner wall of the counterbore portion; A second shaft portion (6), wherein the second shaft portion (6) is clearance-fitted with the second hole portion (4); The receiving assembly includes: A first adaptive mechanism, wherein the first adaptive mechanism is sleeved on the first shaft portion (5), is located between the first hole portion (3) and the second hole portion (4), and respectively connects the second hole portion (4) and the second shaft portion (6); A second adaptive mechanism, wherein the second adaptive mechanism is sleeved on the first shaft portion (5), is located in the first hole portion (3) and respectively connects the first hole portion (3) and the first shaft portion (5); The first adaptive mechanism comprises: A supporting connecting plate (7), wherein the supporting connecting plate (7) abuts against the end surface of the second hole portion (4) and is fixed to the end surface of the second hole portion (4) via a plurality of end surface bolts (8) evenly distributed along the circumference; An upper supporting structure is provided at the upper end of the supporting connecting plate (7); A lower supporting structure is provided at the lower end of the supporting connecting plate (7); An upper connecting plate (9) is provided at the upper end of the upper supporting structure, and the upper connecting plate (9) is fixed to the end face of the second shaft portion (6) by a plurality of placement bolts (10) evenly distributed along the circumference; The first adaptive mechanism further comprises: An inner support sleeve (11), wherein the inner support sleeve (11) is sleeved on the first shaft portion (5), and the lower end of the inner support sleeve (11) abuts against the end surface of the second shaft portion (6); The upper support structure includes: An upper support plate (12), the upper support plate (12) being arranged outside the inner support sleeve (11) and between the upper connecting plate (9) and the supporting connecting plate (7); An upper supporting ball (13), wherein a plurality of upper ball holes evenly distributed along a circumference are provided on the upper supporting plate (12), and an upper supporting ball (13) is provided on each of the upper ball holes; The lower support structure includes: A lower support plate (14), wherein the lower support plate (14) is sleeved outside the inner support sleeve (11) and is located between the support connecting plate (7) and the end surface of the second shaft portion (6); The lower supporting ball (15) is provided with a plurality of lower ball holes evenly distributed along the circumference on the lower supporting plate (14), and each of the lower ball holes is provided with a lower supporting ball (15).

2. The wear-resistant side gear according to claim 1, characterized in that: The first adaptive mechanism further comprises: Anti-stretching components, wherein a plurality of anti-stretching components evenly distributed along a circumference are provided between the second hole portion (4) and the second shaft portion (6); A pressure-resistant component, wherein a plurality of pressure-resistant components evenly distributed along a circumference are provided between the second hole portion (4) and the second shaft portion (6); A stepped bolt hole (16) is provided on the second shaft portion (6) from one end surface connected to the second hole portion (4) to the other side. An end buffer sheet (17) is provided between the outer edge of the end surface of the second shaft portion (6) and the end surface of the second hole portion (4); A side buffer sheet (18) is provided between the side wall of the second shaft portion (6) and the hole wall of the second hole portion (4); A spring washer (19) is provided on the end face bolt (8) with a plurality of stacked spring washers (19), one end of the stacked spring washers (19) abuts against the end face of the second hole portion (4), and the other end abuts against the screw head of the end face bolt (8).

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