Transmission seat with internal circulation oil duct and temperature sensing interface

Abstract

The utility model provides a transmission seat with an internal circulation oil duct and a temperature sensing interface, which comprises a main seat body, the main seat body is provided with a first inner cavity and a second inner cavity in a penetrating manner along the central axis direction, the first inner cavity and the second inner cavity are coaxially arranged, and the inner diameter of the first inner cavity is larger than that of the second inner cavity to form a limiting step for propping against a bearing assembly; an oil inlet hole and an oil outlet hole are formed in the side wall of the first inner cavity in a penetrating mode, and an oil groove is further formed in the inner wall of the first inner cavity and communicated with the oil inlet hole and the oil outlet hole. A mounting hole for assembling a temperature sensor is further formed in the top of the first inner cavity in a penetrating mode. Through the design of the oil inlet hole, the oil outlet hole and the oil groove, cooling lubricating oil is directly guided to flow through a bearing assembly installation area, direct and efficient heat dissipation of the contact face of the bearing assembly and the transmission base is achieved, and the problem that the temperature of the transmission base is increased due to the fact that a servo motor drives a lead screw to rotate is fundamentally solved.

Description

[Technical Field]

[0001] This utility model relates to the field of transmission technology, specifically to a transmission seat with an internal circulation oil passage and a temperature sensing interface. [Background Technology]

[0002] In the field of high-speed precision transmission, the transmission housing is prone to thermal deformation and bearing lubrication failure due to the high temperature generated by the rotational friction of the lead screw over a long period of time, resulting in a decrease in transmission accuracy. Although existing technologies such as CN220592489U have cooling oil circuits inside the lead screw, they cannot solve the problem of temperature rise in the transmission housing itself. Traditional transmission housings mostly have a unidirectional straight-through structure for oil passages (such as CN107605970A), which limits the coverage area of ​​lubricating oil and results in insufficient heat dissipation in critical bearing areas. In addition, CN111828483B adopts a top oil inlet design, and the lubricating oil is unevenly distributed due to gravity and lacks a temperature monitoring mechanism, resulting in a lag in cooling response.

[0003] In view of this, this case involves in-depth research into the aforementioned issues, which led to the formation of this case. [Utility Model Content]

[0004] This invention aims to solve the aforementioned technical problems of existing transmission seats by providing a transmission seat with an internal circulation oil channel and a temperature sensing interface. Through the design of the oil inlet, oil outlet and oil groove, the cooling lubricating oil is directly guided to flow through the bearing assembly installation area, realizing direct and efficient heat dissipation of the contact surface between the bearing assembly and the transmission seat, fundamentally solving the problem of transmission seat overheating caused by the servo motor driving the lead screw to rotate.

[0005] This utility model is implemented as follows: A transmission seat with an internal circulation oil passage and a temperature sensing interface includes a main seat body. The main seat body has a first inner cavity and a second inner cavity extending through it along the central axis. The first inner cavity and the second inner cavity are coaxially arranged. The inner diameter of the first inner cavity is larger than the inner diameter of the second inner cavity, forming a limiting step for abutting the bearing assembly. An oil inlet hole and an oil outlet hole are extending through it on the side wall of the first inner cavity. An oil groove is also provided on the inner wall of the first inner cavity, which connects the oil inlet hole and the oil outlet hole. A mounting hole for assembling a temperature sensor is also extending through it on the top of the first inner cavity.

[0006] Furthermore, the oil groove is formed in the first inner cavity, and the oil groove is a plurality of intersecting grooves that cover the contact area between the inner wall of the first inner cavity and the first bearing assembly.

[0007] Furthermore, the depth of the groove is 2-5mm.

[0008] Furthermore, the oil inlet is located on the left side wall of the main body, and the oil outlet is located on the right side wall of the main body.

[0009] Furthermore, a convex ring is formed on the inner wall of the second inner cavity; the side of the convex ring forms a clearance step with the inner wall of the second inner cavity.

[0010] Furthermore, the inner diameter of the convex ring is larger than the outer diameter of the lead screw.

[0011] Furthermore, it also includes a support for fixing the motor, the support being fixedly connected to the main body via a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate being arranged opposite to each other.

[0012] Furthermore, it also includes a bearing cap for sealing the first inner cavity.

[0013] Furthermore, it also includes an oil seal for sealing the second inner cavity.

[0014] The advantages of this invention are as follows: The transmission seat with an internal circulation oil channel and temperature sensing interface, through the design of an oil inlet, an oil outlet, and an oil groove connecting them, directly guides the cooling lubricating oil through the bearing assembly mounting area, achieving direct and efficient heat dissipation of the contact surface between the bearing assembly and the transmission seat. This fundamentally solves the problem of the transmission seat overheating caused by the servo motor driving the lead screw to rotate. By providing mounting holes for the temperature sensor, a temperature monitoring function is added. The mounting holes are located at the top, facilitating the installation of the temperature sensor from top to bottom. The temperature sensor does not come into contact with the cooling lubricating oil and can monitor the oil temperature or transmission seat wall temperature in real time in the area closest to the heat source. [Attached Image Description]

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the transmission seat in this utility model.

[0017] Figure 2 This is one of the cross-sectional views of the transmission seat in this utility model.

[0018] Figure 3 This is the second sectional view of the transmission seat in this utility model.

[0019] Figure 4 This is a schematic diagram showing the connection relationship between the transmission seat, lead screw, bearing assembly, and coupling in this utility model.

[0020] Reference numerals: Main body 1, First inner cavity 11, Second inner cavity 12, Limiting step 13, Oil inlet hole 14, Oil outlet hole 15, Oil groove 16, Mounting hole 17, Left side wall 18, Right side wall 19, Protruding ring 2, Relief step 3, Support 4, First connecting plate 5, Second connecting plate 6, Bearing cover 7, Oil seal 8, O-ring 9, Bearing assembly 100, Motor 200, Coupling 300, Temperature sensor 400, Lead screw 500.

Detailed Implementation Methods

[0021] To better understand the technical solution of this utility model, the technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Please see Figures 1 to 4 As shown, this utility model provides a transmission seat with an internal circulation oil passage and a temperature sensing interface, including a main seat body 1. The main seat body 1 has a first inner cavity 11 and a second inner cavity 12 extending through it along the central axis. The first inner cavity 11 and the second inner cavity 12 are coaxially arranged. The inner diameter of the first inner cavity 11 is larger than the inner diameter of the second inner cavity 12, forming a limiting step 13 for abutting against the bearing assembly 100. The limiting step 13 precisely limits and supports the bearing assembly 100. The first inner cavity 11 and the second inner cavity 12 are connected to form an installation cavity for installing the bearing assembly 100 and the lead screw.

[0023] The sidewall of the first inner cavity 11 has an oil inlet 14 and an oil outlet 15. The inner wall of the first inner cavity 11 also has an oil groove 16, which connects the oil inlet 14 and the oil outlet 15. The top of the first inner cavity 11 also has a through-hole 17 for mounting a temperature sensor 400, which serves as a temperature sensing interface. The oil inlet 14, oil outlet 15, and oil groove 16 form an internal circulation oil channel, directly guiding the cooling lubricating oil through the bearing assembly 100 mounting area. This achieves direct and efficient heat dissipation from the contact surface between the bearing assembly 100 and the transmission seat, fundamentally solving the problem of the transmission seat heating up due to the servo motor 200 driving the lead screw to rotate. By opening the mounting hole 17 for mounting the temperature sensor, a temperature monitoring function is added. The mounting hole 17 is located at the top, facilitating the installation of the temperature sensor 400 from top to bottom. The temperature sensor 400 will not come into contact with the cooling lubricating oil and can monitor the oil temperature or transmission seat wall temperature in real time in the area closest to the heat source.

[0024] In this invention, the oil groove 16 is formed in the first inner cavity 11. The oil groove 16 consists of multiple intersecting grooves that cover the contact area between the inner wall of the first inner cavity 11 and the bearing assembly 100. The multiple intersecting grooves covering the key contact area greatly increase the flow path and contact area of ​​the cooling lubricating oil on the inner wall of the main body 1, more thoroughly removing the concentrated heat generated by friction and preventing heat accumulation in key parts of the transmission seat. This not only significantly improves heat exchange efficiency but also makes cooling more uniform, further enhancing the cooling effect. The grooves of the oil groove 16 can also be other irregular or regular shapes, as long as they are connected to the oil inlet hole 14 and the oil outlet hole 15 and are widely distributed on the inner wall of the first inner cavity 11.

[0025] In this invention, the depth of the groove is 2-5mm.

[0026] In this utility model, the mounting hole 17 is a threaded mounting hole, and the temperature sensor 400 is threadedly connected to the mounting hole 17.

[0027] In this invention, the oil inlet 14 is located on the left side wall 18 of the main body 1, and the oil outlet 15 is located on the right side wall 19 of the main body 1, which facilitates the connection and layout of external oil pipes. The oil inlet 14 and the oil outlet 15 are arranged opposite each other, further increasing the flow path of the cooling lubricating oil.

[0028] In this invention, a raised ring 2 is formed on the inner wall of the second inner cavity 12; a clearance step 3 is formed between the side of the raised ring 2 and the inner wall of the second inner cavity 12. The design of the clearance step 3 creates a certain gap between the side of the raised ring 2 and the bearing assembly 100, reducing the force-bearing area of ​​the bearing assembly 100, preventing accuracy deviation problems caused by excessive force-bearing area, and transferring the force point. The gap allows cooling lubricating oil to flow smoothly axially from the first inner cavity 11 (main cooling area) into the area of ​​the second inner cavity 12 near the root of the lead screw.

[0029] In this invention, the inner diameter of the convex ring 2 is larger than the outer diameter of the lead screw 500, which further optimizes the internal oil passage and forms a space for the flow of cooling lubricating oil around the lead screw 500. This ensures that the cooling oil can effectively flow around the root of the lead screw 500, helping to remove the heat conducted from the lead screw 500 to the transmission seat, and significantly improving the comprehensiveness and effectiveness of cooling.

[0030] This invention also includes a support 4 for fixing the motor 200. The support 4 is fixedly connected to the main body 1 via a first connecting plate 5 and a second connecting plate 6, which are arranged opposite to each other. An assembly space for the coupling 300 and the lead screw is formed between the first connecting plate 5 and the second connecting plate 6. A through hole is formed in the middle of the support 4 for the output end of the drive motor 200 to pass through, allowing the output end of the drive motor 200 to connect with the coupling 300. By directly fixing the support 4 to the main body 1 via the connecting plates, a compact and rigid connection between the drive motor 200 and the transmission seat is achieved. This integrated design improves the structural rigidity of the transmission seat, reduces vibration, ensures the coaxiality of the drive motor 200-coupling 300-lead screw transmission, and indirectly helps to reduce abnormal frictional heat generation.

[0031] This invention also includes a bearing cap 7 for sealing the first inner cavity 11, and an O-ring 9. The O-ring 9 provides a sealing function, enhancing the bearing positioning and sealing structure. The bearing cap 7 is used to axially fix the bearing assembly 100 to prevent it from moving around, and also assists in sealing the first inner cavity 11, working in conjunction with the oil seal 8 to ensure the sealing of the internal oil passage.

[0032] This invention also includes an oil seal 8 and an O-ring 9 for sealing the second inner cavity 12. The O-ring 9 acts as a seal to effectively prevent leakage of internal cooling lubricating oil, while preventing external contaminants from entering the transmission seat, protecting the bearing assembly 100 and the oil circuit, and ensuring the long-term reliable operation of the cooling system.

[0033] In this invention, the oil inlet hole 14 is used to install an oil inlet nozzle, and the oil outlet hole 15 is used to install an oil outlet nozzle. The oil inlet nozzle is connected to the oil cooler via an oil pipe, and the oil outlet nozzle is also connected to the oil cooler via an oil pipe. The temperature sensor 400 provides real-time temperature feedback to the oil cooler, and the oil cooler adjusts the cooling intensity (such as compressor power and fan speed) and delivery speed (oil pump flow rate) of the cooling lubricating oil based on the signal returned by the temperature sensor 400.

[0034] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A transmission seat with an internal circulation oil passage and a temperature sensing interface, comprising a main seat body, characterized in that: The main body has a first inner cavity and a second inner cavity through it along the central axis. The first inner cavity and the second inner cavity are coaxially arranged. The inner diameter of the first inner cavity is larger than that of the second inner cavity, forming a limiting step for supporting the bearing assembly. The side wall of the first inner cavity has an oil inlet and an oil outlet through it. The inner wall of the first inner cavity also has an oil groove that connects the oil inlet and the oil outlet. The top of the first inner cavity also has a mounting hole for assembling a temperature sensor through it.

2. The transmission seat with internal circulation oil passage and temperature sensing interface as described in claim 1, characterized in that: The oil groove is formed in the first inner cavity, and the oil groove is a series of intersecting grooves that cover the contact area between the inner wall of the first inner cavity and the first bearing assembly.

3. The transmission seat with internal circulation oil passage and temperature sensing interface as described in claim 2, characterized in that: The depth of the groove is 2-5mm.

4. The drive block of any one of claims 1-3, wherein: The oil inlet is located on the left side wall of the main body, and the oil outlet is located on the right side wall of the main body.

5. The transmission seat with internal circulation oil passage and temperature sensing interface as described in claim 4, characterized in that: The inner wall of the second inner cavity is formed with a convex ring; the side of the convex ring forms a clearance step with the inner wall of the second inner cavity.

6. The transmission seat with internal circulation oil passage and temperature sensing interface as described in claim 5, characterized in that: The inner diameter of the convex ring is larger than the outer diameter of the lead screw.

7. The transmission seat with internal circulation oil passage and temperature sensing interface as described in claim 6, characterized in that: It also includes a support for fixing the motor, the support being fixedly connected to the main body via a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate being arranged opposite to each other.

8. The transmission seat with internal circulation oil passage and temperature sensing interface as described in claim 7, characterized in that: It also includes a bearing cap for sealing the first inner cavity.

9. The transmission seat with internal circulation oil passage and temperature sensing interface as described in claim 8, characterized in that: It also includes an oil seal used to seal the second inner cavity.

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