阅读说明：本技术 一种变速器中锥齿轮副安装距调整装置及调整方法 (Bevel gear pair mounting distance adjusting device and method in transmission ) 是由 邵肖 于 2021-09-28 设计创作，主要内容包括：本发明公开一种变速器中锥齿轮副安装距调整装置及调整方法,该装置包括数显深度规、测量转接座以及标准主动锥齿轮,在测量转接座的顶部固定连接有数显深度规,在测量转接座的中心开设有通孔,且数显深度规的探针伸入通孔中,在通孔内滑动连接有标准主动锥齿轮,所述的探针与标准主动锥齿轮的顶部接触。本发明实现锥齿轮副变速器中锥齿轮副精确安装,装配工艺简单高效,操作方便,且批量装配带锥齿轮副变速器性能稳定性好。(The invention discloses a device and a method for adjusting the installation distance of a bevel gear pair in a transmission, wherein the device comprises a digital display depth gauge, a measuring adapter and a standard driving bevel gear, the top of the measuring adapter is fixedly connected with the digital display depth gauge, the center of the measuring adapter is provided with a through hole, a probe of the digital display depth gauge extends into the through hole, the through hole is connected with the standard driving bevel gear in a sliding manner, and the probe is contacted with the top of the standard driving bevel gear. The invention realizes the accurate installation of the bevel gear pair in the bevel gear pair transmission, has simple and efficient assembly process and convenient operation, and has good performance stability when the transmission with the bevel gear pair is assembled in batches.)

1. The utility model provides a bevel gear pair mounting distance adjusting device and adjustment method in derailleur, includes digital display depth gauge (1), measures adapter (3) and standard initiative bevel gear (6), its characterized in that: at top fixedly connected with digital display depth gauge (1) of measuring adapter (3), set up through-hole (4) at the center of measuring adapter (3), and during probe (2) of digital display depth gauge (1) stretched into through-hole (4), sliding connection had standard initiative bevel gear (4) in through-hole (4), probe (2) and the top contact of standard initiative bevel gear (6).

2. The bevel gear pair pitch adjustment device in a transmission according to claim 1, wherein: and an annular table (5) is arranged at the lower port part of the through hole (4).

3. The bevel gear pair pitch adjustment device in a transmission according to claim 1, wherein: the probe (2) is vertical to the top surface of the measuring adapter (3).

4. A method for adjusting the mounting distance of a bevel gear pair in a transmission based on the device for adjusting the mounting distance of a bevel gear pair in a transmission according to any one of claims 1 to 3, comprising the steps of:

adjusting the relative position relationship between a standard driving bevel gear (6) and a measuring adapter (3) to enable the extension length i of a probe (2) of the digital display depth gauge (1) to reach a theoretical value, and enabling the display value of the digital display depth gauge (1) to return to zero;

step two, mounting the adjusting device at a seam allowance of a transmission shell (10), and enabling the standard driving bevel gear (6) to be meshed with a driven bevel gear (9) of the transmission to ensure that all assembling surfaces are completely and smoothly attached;

step three, recording the reading of a display screen of the digital display depth gauge (1);

step four, converting a driven bevel gear mounting distance deviation value delta k according to a formula delta k which is cos beta delta i/cos alpha;

wherein: Δ i-the standard drive bevel gear setting distance deviation value;

alpha-standard drive bevel gear pitch angle;

beta-driven bevel gear pitch angle;

and step five, if the reading of the delta i is negative, indicating that the standard driving bevel gear (4) slides downwards, and feeding back that the actual mounting position of the driven bevel gear (9) deviates rightwards relative to the theoretical position, installing an adjusting washer with the thickness of |. delta k | at the mounting and attaching shaft shoulder of a right end bearing (7) and the driven bevel gear (9) of the transmission, otherwise, installing an adjusting washer with the thickness of |. delta k | at the mounting and attaching shaft shoulder of a left end bearing (11) and the driven bevel gear (9), and thus finishing the accurate mounting of the bevel gear pair in the bevel gear pair transmission.

5. The method of adjusting a bevel gear pair mounting distance in a transmission according to claim 4, characterized in that: when the adjusting device is arranged at a seam allowance of a transmission shell (10), an annular table (5) of the measuring adapter (3) is matched with the seam allowance by adopting a base hole system.

Technical Field

The invention relates to a bevel gear pair mounting distance adjusting device and method in a transmission, and belongs to the technical field of precision transmission.

Background

In the prior art, the mounting distance of the bevel gear pair needs to be adjusted in the assembly of the speed changer with the bevel gear pair, and because each part of the speed changer has certain manufacturing tolerance, the mounting distance of the large bevel gear needs to be adjusted by installing a proper adjusting gasket at a specified position in the speed reduction in the assembly and debugging process of the speed reducer, so that the bevel gear pair can be correctly meshed to reach the mechanical performance index of the speed reducer. The current adjusting method is to assemble and disassemble the bevel gear pair for multiple times and load a proper amount of adjusting gaskets, manually rotate the output shaft by an experienced assembly technician, and judge whether the installation distance of the bevel gear pair can flexibly and stably operate or not according to the rotation flexibility of the output shaft. The disadvantages of this adjustment are: 1. the assembly efficiency is low; 2. the assembly and disassembly can cause the damage of parts; 3. the conclusion obtained by means of the perceptual experience is not enough to be taken as the basis for judging whether the product is qualified or not; 4. the labor intensity of assembly workers is increased; 5. the mechanical performance stability of the transmission is poor.

Disclosure of Invention

In order to solve the technical problems, the invention provides a device and a method for adjusting the mounting distance of a bevel gear pair in a transmission, which are used for providing scientific data support for adjusting the mounting distance of the bevel gear pair in the transmission and can be used for assembling and debugging the transmission with the bevel gear pair, which has standard performance and stable batch performance, with high efficiency and low consumption.

The invention is formed as follows: the utility model provides a bevel gear pair installation distance adjusting device in derailleur, includes digital display depth gage, measures adapter and standard initiative bevel gear, at the top fixedly connected with digital display depth gage of measuring the adapter, has seted up the through-hole at the center of measuring the adapter, and during the probe of digital display depth gage stretched into the through-hole, sliding connection had standard initiative bevel gear in the through-hole, the top contact of probe and standard initiative bevel gear.

Further, the lower port part of the through hole is provided with an annular table.

Further, the probe is perpendicular to the top surface of measuring adapter.

Meanwhile, the invention also provides a method for adjusting the mounting distance of the bevel gear pair in the transmission based on the device for adjusting the mounting distance of the bevel gear pair in the transmission, which comprises the following steps:

adjusting the relative position relationship between a standard driving bevel gear and a measuring adapter to enable the extension length i of a probe of the digital display depth gauge to reach a theoretical value, and enabling the display value of the digital display depth gauge to return to zero;

step two, mounting the adjusting device at a seam allowance of a transmission shell, and meshing a standard driving bevel gear with a driven bevel gear of the transmission to ensure that all assembling surfaces are completely and smoothly attached;

step three, recording the reading of a display screen of the digital display depth gauge;

step four, converting a driven bevel gear mounting distance deviation value delta k according to a formula delta k which is cos beta delta i/cos alpha;

wherein: Δ i-the standard drive bevel gear setting distance deviation value;

alpha-standard drive bevel gear pitch angle;

beta-driven bevel gear pitch angle;

and step five, if the reading of the delta i is negative, indicating that the standard driving bevel gear slides downwards, and feeding back that the actual mounting position of the driven bevel gear deviates rightwards relative to the theoretical position, installing an adjusting washer with the thickness of | delta k | at the mounting and attaching shaft shoulder of the right end bearing and the driven bevel gear of the transmission, otherwise, installing an adjusting washer with the thickness of | delta k | at the mounting and attaching shaft shoulder of the left end bearing and the driven bevel gear, thus finishing the accurate mounting of the bevel gear pair in the bevel gear pair transmission.

In the method, when the adjusting device is arranged at the seam allowance of the transmission shell, the annular platform of the measuring adapter is matched with the seam allowance by adopting a base hole system.

Due to the adoption of the technical scheme, the invention has the advantages that: the invention realizes the accurate installation of the bevel gear pair in the bevel gear pair transmission, has simple and efficient assembly process and convenient operation, and has good performance stability when the transmission with the bevel gear pair is assembled in batches.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the present invention in use.

The labels in the figures are: the device comprises a 1-digital display depth gauge, a 2-probe, a 3-measurement adapter, a 4-through hole, a 5-annular table, a 6-standard driving bevel gear, a 7-right side bearing, an 8-transmission end cover, a 9-driven bevel gear, a 10-transmission shell and a 11-left side bearing.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples.

The embodiment of the invention comprises the following steps: as shown in fig. 1, a bevel gear pair mounting distance adjusting device in transmission, including digital display depth gauge 1, measure adapter 3 and standard initiative bevel gear 6, at the top fixedly connected with digital display depth gauge 1 of measuring adapter 3, set up through-hole 4 at the center of measuring adapter 3, and in digital display depth gauge 1's probe 2 stretched into through-hole 4, sliding connection had standard initiative bevel gear 6 in through-hole 4, standard initiative bevel gear 6 can float from top to bottom in through-hole 4 promptly, probe 2 and the top contact of standard initiative bevel gear 6. The lower port portion of the through hole 54 is provided with an annular table 5. The probe 2 is perpendicular to the top surface of the measuring adapter 3.

Referring to fig. 2, the conventional transmission with a bevel gear pair includes a transmission case 10, a driven bevel gear 9 is mounted in the transmission case 10 through a left bearing 11 and a right bearing 7, and a transmission cover 8 is fixedly connected to one end of the transmission case 10.

The principle applied by the invention is as follows:

in the design of the bevel gear, the mathematical relationship of the crown pitch of a pair of meshing bevel gear pairs is as follows:

l '/cos α ═ k'/cos β (equation 1)

L' -standard drive bevel gear crown pitch;

k' -driven bevel gear crown distance;

alpha-standard drive bevel gear pitch angle;

beta-driven bevel gear pitch angle.

When a bevel gear pair is actually produced, the bevel gear crown pitch is actually a theoretical size and cannot be measured on a real bevel gear, so the bevel gear crown pitch is usually converted into a bevel gear mounting pitch, as shown in fig. 2, a standard driving bevel gear crown pitch L 'is converted into a standard driving bevel gear mounting pitch L, and a driven bevel gear crown pitch K' is converted into a K driven bevel gear mounting pitch K, that is:

l/cos α ═ k/cos β (equation 2)

L is the mounting distance of the standard driving bevel gear;

k is the mounting distance of the driven bevel gear;

alpha-standard drive bevel gear pitch angle;

beta-driven bevel gear pitch angle.

However, when the bevel gear pair is in a sealed box, the mounting distance L of the standard driving bevel gear and the mounting distance K of the driven bevel gear are still not measurable, so that the state that the power input of the driving wheel is loaded into the transmission is simulated, and the mounting distance L of the standard driving bevel gear which is not measurable in the sealed transmission is converted into the following steps:

l ═ U-i (formula 3)

U is a standard driving bevel gear mounting distance conversion theoretical value;

i-digital display depth gauge probe detection theoretical measurement value.

Due to manufacturing differences of parts in the transmission, a certain difference exists between a standard driving bevel gear mounting distance L and a driven bevel gear mounting distance k in the assembled transmission, the difference is marked as delta k, so that the actual measurement depth dimension of the transmission deviates from a probe detection theoretical value i of a depth indicator, the deviation value is marked as delta i, and the following steps can be deduced according to formulas 1, 2 and 3 and a triangular similarity principle:

Δ k ═ cos β Δ i/cos α (equation 4)

Delta k is the mounting distance deviation value of the driven bevel gear;

Δ i-the standard drive bevel gear setting distance deviation value;

alpha-standard drive bevel gear pitch angle;

beta-driven bevel gear pitch angle.

Based on the theory, the mounting distance of the bevel gear pair in the transmission is adjusted, and the following steps can be adopted:

adjusting the relative position relationship between a standard driving bevel gear 6 and a measuring adapter 3 to enable the extending length i of a probe 2 of the digital display depth gauge 1 to reach a theoretical value, and enabling the display numerical value of the digital display depth gauge 1 to return to zero;

step two, mounting the adjusting device at a seam allowance of a transmission shell 10, and enabling the standard driving bevel gear 6 to be meshed with a driven bevel gear 9 of the transmission to ensure that all assembling surfaces are completely and smoothly attached; when the adjusting device is arranged at the seam allowance of the transmission shell 10, the annular table 5 of the measuring adapter 3 is matched with the seam allowance by adopting a base hole system;

step three, recording the reading of a display screen of the digital display depth gauge 1;

step four, converting a driven bevel gear mounting distance deviation value delta k according to a formula delta k which is cos beta delta i/cos alpha;

wherein: Δ i-the standard drive bevel gear setting distance deviation value;

alpha-standard drive bevel gear pitch angle;

beta-driven bevel gear pitch angle;

and step five, if the reading of the delta i is negative, indicating that the standard driving bevel gear 6 slides downwards, and feeding back that the actual mounting position of the driven bevel gear 9 deviates rightwards relative to the theoretical position, installing an adjusting washer with the thickness of | delta k | at the mounting and attaching shaft shoulder of the right end bearing 7 and the driven bevel gear 9 of the transmission, otherwise, installing an adjusting washer with the thickness of | delta k | at the mounting and attaching shaft shoulder of the left end bearing 11 and the driven bevel gear 9, and thus finishing the accurate mounting of the bevel gear pair in the bevel gear pair transmission.