Pressure plate assembly for truck clutch

Abstract

The utility model relates to the technical field of clutch assemblies, and discloses a pressure plate assembly for a truck clutch, which comprises a clutch cover, the top end of the clutch cover is fixedly connected with a pressure plate body, the outer wall of the top end of the pressure plate body is provided with a plurality of mounting plates, and the left side and the right side of the outer wall of each mounting plate are in threaded connection with mounting bolts. Friction blocks are fixedly connected to the top sides of the opposite ends of the mounting plates, a connecting boss is connected to the top end of the pressure plate body through a wear-resistant assembly, a plurality of cooling fins are fixedly connected to the outer wall of the top end of the connecting boss, a mounting cover is fixedly connected to the top end of the connecting boss, and a fixing pipe is fixedly connected to the inner wall of the top end of the mounting cover; the outer wall of the bottom end of the fixing pipe is connected with a ventilation piece through a heat dissipation assembly. The heat dissipation effect of the device is improved, thermal fatigue and thermal cracks are reduced, the service life of parts is prolonged, the overall wear-resisting effect of the structure is improved, and friction and abrasion can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of clutch assemblies, in particular to a pressure plate assembly for a truck clutch. Background Art

[0002] The pressure plate assembly for truck clutches includes a pressure plate, friction plate, diaphragm spring, clutch cover and driven plate. These components work together to ensure that the clutch system can effectively separate and connect the engine and transmission to achieve smooth gear shifting and power transmission. The truck's pressure plate assembly is designed to be more robust to handle heavier loads and frequent use.

[0003] After searching, the dry friction clutch pressure plate assembly of announcement number CN217401494U includes a clutch cover, a diaphragm spring, a support ring, a pressure plate, a transmission plate and a booster disc spring; a first sub-assembly in which the clutch cover, the diaphragm spring and the support ring are fixedly connected as one, a second sub-assembly in which the first sub-assembly and the transmission plate are fixedly connected as one, and the second sub-assembly and the pressure plate and the booster disc spring are fixedly connected as one; the booster disc spring is arranged between the pressure plate and the diaphragm spring. The dry friction clutch pressure plate assembly provided by the utility model is provided with a booster disc spring between the pressure plate and the diaphragm spring, and the elastic force of the booster disc spring and the diaphragm spring cooperate with each other. When the friction plate is worn, the pressure plate moves to the left side under the action of the diaphragm spring and is pressed against the friction plate, and the force of the diaphragm spring on the pressure plate gradually increases, and the reaction force of the booster disc spring on the diaphragm spring also gradually increases, and the two offset each other, so that the maximum separation force increase after wear is reduced.

[0004] Based on the above patent, a booster disc spring is arranged between the pressure plate and the diaphragm spring, and the elastic forces of the booster disc spring and the diaphragm spring cooperate with each other. When the friction plate is worn, the pressure plate moves to the left under the action of the diaphragm spring and adheres to the friction plate, and the force of the diaphragm spring on the pressure plate gradually increases, and the reaction force of the booster disc spring on the diaphragm spring also gradually increases. The two offset each other, so that the maximum separation force increase after wear is reduced, effectively reducing the driver's fatigue when operating the clutch. However, the pressure plate assembly in this patent will generate high temperature during long-term use, and continuous high temperature will cause the materials of the clutch friction plate and pressure plate to age, harden or become brittle, shortening their service life. Overheating will reduce the friction performance of the clutch, causing slipping, affecting the efficiency of power transmission and driving smoothness. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a pressure plate assembly for a truck clutch, which improves the heat dissipation effect of the device, reduces thermal fatigue and thermal cracks, extends the service life of components, improves the overall wear resistance of the structure, and can reduce friction and wear.

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

[0007] A pressure plate assembly for a truck clutch comprises a clutch cover, a pressure plate body being fixedly connected to the top of the clutch cover, a plurality of mounting plates being installed on the outer wall of the top of the pressure plate body, mounting bolts being threadedly connected to the left and right sides of the outer walls of the mounting plates, friction blocks being fixedly connected to the top sides of the opposite ends of the mounting plates, a connecting boss being connected to the top of the pressure plate body via a wear-resistant component, a plurality of heat sinks being fixedly connected to the outer wall of the top of the connecting boss, a mounting cover being fixedly connected to the top of the connecting boss, a fixing tube being fixedly connected to the inner wall of the top of the fixing cover, and a breathable sheet being connected to the outer wall of the bottom end of the fixing tube via a heat dissipation component.

[0008] Furthermore, the heat dissipation assembly includes a plurality of heat dissipation grooves on the inner wall of the mounting cover, a plurality of air holes on the outer wall of the breathable sheet, a plurality of honeycomb panels fixedly connected to the inner wall of the pressure plate body, exhaust holes on the outer walls of the honeycomb panels, and a plurality of air outlet grooves on the inner wall of the pressure plate body.

[0009] Furthermore, the wear-resistant component includes a high-carbon cast iron layer arranged on the outer side of the connecting boss, a boron-carbon alloy layer is arranged on the inner wall of the high-carbon cast iron layer, a nickel-based alloy layer is arranged on the outer side of the pressure plate body, a vanadium-chromium alloy layer is arranged on the inner side of the nickel-based alloy layer, a phosphor bronze layer is arranged on the inner side of the vanadium-chromium alloy layer, a vanadium-titanium alloy layer is arranged on the outer side of the clutch cover, and a monel alloy layer is arranged on the inner side of the vanadium-titanium alloy layer.

[0010] Furthermore, the outer wall of the connecting boss is fixedly connected to the opposite end of the mounting plate, and the bottom end of the mounting bolt is detachably connected to the outer wall of the top end of the pressure plate body.

[0011] Furthermore, the top of the honeycomb plate is fixedly connected to the top of the clutch cover, and the outer wall of the exhaust hole at the opposite end is tightly attached to the opposite end of the air outlet groove.

[0012] Furthermore, the bottom end of the air hole is in close contact with the top end of the honeycomb plate, and the opposite end of the heat dissipation slot is in close contact with the outer wall of the air permeable sheet.

[0013] Furthermore, the bottom end of the boron-carbon alloy layer is installed on the top end of the nickel-based alloy layer, and the bottom end of the phosphor bronze layer is installed on the top end of the monel alloy layer.

[0014] Furthermore, the boron-carbon alloy layer and the high-carbon cast iron layer have a thickness and diameter of 20 mm, and the monel alloy layer has a thickness and diameter of 10 mm.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, the heat dissipation effect of the device is improved, thermal fatigue and thermal cracks are reduced, and the service life of the components is extended by using a combination of heat sinks, air-permeable sheet heat dissipation grooves, air holes, honeycomb plates, exhaust holes and air outlet grooves. Good heat dissipation performance can maintain a stable friction coefficient, ensure the normal operation of the clutch, and improve the working stability and reliability of the clutch.

[0017] 2. In the utility model, by using a high-carbon cast iron layer, a boron-carbon alloy layer, a nickel-based alloy layer, a vanadium-chromium alloy layer, a phosphor bronze layer, a vanadium-titanium alloy layer and a monel alloy layer in combination, the overall wear resistance of the structure is improved, friction and wear can be reduced, thereby significantly extending the service life of the pressure plate assembly and the friction plate, reducing the replacement frequency, reducing the frequency of maintenance and replacement, and thus reducing the overall maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of a pressure plate assembly for a truck clutch proposed by the utility model;

[0019] Figure 2 A half-section view of a connecting boss of a pressure plate assembly for a truck clutch proposed by the utility model;

[0020] Figure 3 A half-section view of a clutch cover of a pressure plate assembly for a truck clutch proposed by the utility model;

[0021] Figure 4 A half-section diagram of a boron-carbon alloy layer of a pressure plate assembly for a truck clutch proposed by the utility model;

[0022] Figure 5 A half-section view of a vanadium-chromium alloy layer of a pressure plate assembly for a truck clutch proposed by the utility model;

[0023] Figure 6 This is a half-section view of a monel alloy layer of a pressure plate assembly for a truck clutch proposed by the utility model.

[0024] Legend:

[0025] 1. Clutch cover; 2. Pressure plate body; 3. Mounting plate; 4. Friction block; 5. Mounting bolts; 6. Connecting boss; 7. Heat sink; 8. Mounting cover; 9. Breathable sheet; 10. Fixing pipe; 11. Heat sink; 12. Breathing hole; 13. Honeycomb plate; 14. Exhaust hole; 15. Air outlet groove; 16. High carbon cast iron layer; 17. Boron-carbon alloy layer; 18. Nickel-based alloy layer; 19. Vanadium-chromium alloy layer; 20. Phosphor bronze layer; 21. Vanadium-titanium alloy layer; 22. Monel alloy layer. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Reference Figure 1-Figure 6 The utility model provides an embodiment: a pressure plate assembly for a truck clutch, including a clutch cover 1, characterized in that: a pressure plate body 2 is fixedly connected to the top of the clutch cover 1, a plurality of mounting plates 3 are installed on the outer wall of the top of the pressure plate body 2, mounting bolts 5 are threadedly connected to the left and right sides of the outer wall of the mounting plate 3, and friction blocks 4 are fixedly connected to the top sides of the opposite ends of the mounting plates 3, a plurality of heat sinks 7 are fixedly connected to the outer wall of the top of the connecting boss 6, a mounting cover 8 is fixedly connected to the top of the connecting boss 6, and a fixing pipe 10 is fixedly connected to the inner wall of the top of the mounting cover 8, and the outer wall of the connecting boss 6 is fixedly connected to the opposite end of the mounting plate 3, and the bottom end of the mounting bolt 5 is detachably connected to the outer wall of the top of the pressure plate body 2, and the connecting boss 6 connected to the mounting plate 3 is installed at the pressure plate body 2 through the mounting bolt 5, and the friction block 4 facilitates the device to provide friction, and the heat sink 7 conducts cold air to the fixing pipe 10 when the vehicle moves, so that the fixing pipe 10 conducts cold air to the air permeable sheet 9.

[0028] Specifically:

[0029] Reference Figure 2 , Figure 3 and Figure 4 The inner wall of the mounting cover 8 is provided with a plurality of heat dissipation grooves 11, the outer wall of the air-permeable sheet 9 is provided with a plurality of air holes 12, the inner wall of the pressure plate body 2 is fixedly connected with a plurality of honeycomb plates 13, the outer walls of the honeycomb plates 13 are provided with exhaust holes 14, and the inner wall of the pressure plate body 2 is provided with a plurality of air outlet grooves 15. When the air in the fixed pipe 10 is conducted, the fixed pipe 10 transmits the air to the honeycomb plate 13, and the exhaust holes 14 conduct the cold air to the air outlet grooves 15, so that the air outlet grooves 15 dissipate heat for the pressure plate body 2, and the cold air at the air-permeable sheet 9 is reflected and conducted to the air outlet holes 12 at the honeycomb plate 13. , so that the air vents 12 are conducted to the heat dissipation groove 11, so that the heat dissipation groove 11 dissipates heat to the mounting cover 8, the top of the honeycomb plate 13 is fixedly connected to the top of the clutch cover 1, the outer wall of the exhaust hole 14 at the opposite end is tightly attached to the opposite end of the air outlet groove 15, the bottom end of the air vent 12 is tightly attached to the top of the honeycomb plate 13, and the opposite end of the heat dissipation groove 11 is tightly attached to the outer wall of the breathable sheet 9, which improves the heat dissipation effect of the device, reduces thermal fatigue and thermal cracks, and extends the service life of the components. In addition, good heat dissipation performance can maintain a stable friction coefficient, ensure the normal operation of the clutch, and improve the working stability and reliability of the clutch.

[0030] Specifically:

[0031] Reference Figure 5 and Figure 6 A high-carbon cast iron layer 16 is arranged on the outer side of the connecting boss 6, and the high-carbon cast iron layer 16 has excellent pressure resistance and wear resistance. A boron-carbon alloy layer 17 is arranged on the inner wall of the high-carbon cast iron layer 16. The boron-carbon alloy layer 17 is a very hard and light material with extremely high wear resistance and corrosion resistance. The nickel-based alloy layer 18 has excellent high temperature resistance and oxidation resistance and can be used in high-temperature working environments. A nickel-based alloy layer 18 is arranged on the outer side of the pressure plate body 2, and a vanadium-chromium alloy layer 19 is arranged on the inner side of the nickel-based alloy layer 18. A phosphor bronze layer 20 is arranged on the inner side of the vanadium-chromium alloy layer 19. A vanadium-titanium alloy layer 21 is arranged on the outer side of the clutch cover 1, and a monel alloy layer 22 is arranged on the inner side of the vanadium-titanium alloy layer 21. The vanadium-chromium alloy layer 19 has It has excellent high-temperature strength and corrosion resistance, the phosphor bronze layer 20 has good wear resistance and corrosion resistance, the vanadium-titanium alloy layer 21 and the monel alloy layer 22 have extremely high corrosion resistance and mechanical strength, the bottom of the boron-carbon alloy layer 17 is installed on the top of the nickel-based alloy layer 18, and the bottom of the phosphor bronze layer 20 is installed on the top of the monel alloy layer 22. The thickness and diameter of the boron-carbon alloy layer 17 and the high-carbon cast iron layer 16 are both 20 mm, and the thickness and diameter of the monel alloy layer 22 are both 10 mm, which improves the overall wear resistance of the structure, can reduce friction and wear, thereby significantly extending the service life of the pressure plate assembly and the friction plate, reducing the replacement frequency, reducing the frequency of maintenance and replacement, and thus reducing the overall maintenance cost.

[0032] Working principle: The connecting boss 6 connected to the mounting plate 3 is installed on the pressure plate body 2 by installing the bolts 5, and the friction block 4 facilitates the device to provide friction, and the heat sink 7 conducts the cold air to the fixed pipe 10 when the vehicle moves, so that the fixed pipe 10 conducts the cold air to the breathable sheet 9, and when the air in the fixed pipe 10 is conducted, the fixed pipe 10 transmits the cold air to the honeycomb plate 13, so that the exhaust hole 14 conducts the cold air to the air outlet groove 15, so that the air outlet groove 15 dissipates heat to the pressure plate body 2, and the cold air at the breathable sheet 9 is reflected and conducted to the air hole 12 at the honeycomb plate 13, so that the air hole 12 is conducted to the heat dissipation groove 11, so that the heat dissipation groove 11 dissipates heat to the mounting cover 8, thereby improving the heat dissipation effect of the device, reducing thermal fatigue and thermal cracks, extending the service life of the components, and having good heat dissipation. The thermal performance can maintain a stable friction coefficient, ensure the normal operation of the clutch, and improve the working stability and reliability of the clutch. The high carbon cast iron layer 16 has excellent pressure resistance and wear resistance. The boron carbon alloy layer 17 is a very hard and light material with extremely high wear resistance and corrosion resistance. The nickel-based alloy layer 18 has excellent high temperature resistance and oxidation resistance and can be used in high temperature working environments. 19 has excellent high temperature strength and corrosion resistance. The phosphor bronze layer 20 has good wear resistance and corrosion resistance. The vanadium-titanium alloy layer 21 and the monel alloy layer 22 have extremely high corrosion resistance and mechanical strength, thereby improving the overall wear resistance of the structure, reducing friction and wear, thereby significantly extending the service life of the pressure plate assembly and the friction plate, reducing the replacement frequency, and reducing the frequency of maintenance and replacement, thereby reducing the overall maintenance cost.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pressure plate assembly for a truck clutch, comprising a clutch cover (1), characterized in that: The clutch cover (1) is fixedly connected to the top of a pressure plate body (2), and a plurality of mounting plates (3) are installed on the outer wall of the top of the pressure plate body (2). The left and right sides of the outer wall of the mounting plate (3) are threadedly connected with mounting bolts (5). The top side of the mounting plate (3) is fixedly connected with a friction block (4). The top of the pressure plate body (2) is connected to a connecting boss (6) through a wear-resistant component. The outer wall of the top of the connecting boss (6) is fixedly connected to a plurality of heat sinks (7). The top of the connecting boss (6) is fixedly connected to a mounting cover (8). The inner wall of the top of the mounting cover (8) is fixedly connected to a fixing tube (10), and the outer wall of the bottom end of the fixing tube (10) is connected to a breathable sheet (9) through a heat dissipation component.

2. A truck clutch pressure plate assembly according to claim 1, characterized in that: The heat dissipation assembly comprises a plurality of heat dissipation grooves (11) provided on the inner wall of the mounting cover (8), a plurality of air holes (12) provided on the outer wall of the air permeable sheet (9), a plurality of honeycomb panels (13) fixedly connected to the inner wall of the pressure plate body (2), exhaust holes (14) provided on the outer walls of the honeycomb panels (13), and a plurality of air outlet grooves (15) provided on the inner wall of the pressure plate body (2).

3. A truck clutch pressure plate assembly according to claim 1, characterized in that: The wear-resistant component comprises a high-carbon cast iron layer (16) arranged on the outer side of the connecting boss (6), a boron-carbon alloy layer (17) being arranged on the inner wall of the high-carbon cast iron layer (16), a nickel-based alloy layer (18) being arranged on the outer side of the pressure plate body (2), a vanadium-chromium alloy layer (19) being arranged on the inner side of the nickel-based alloy layer (18), a phosphor bronze layer (20) being arranged on the inner side of the vanadium-chromium alloy layer (19), a vanadium-titanium alloy layer (21) being arranged on the outer side of the clutch cover (1), and a monel alloy layer (22) being arranged on the inner side of the vanadium-titanium alloy layer (21).

4. A truck clutch pressure plate assembly according to claim 1, characterized in that: The outer wall of the connecting boss (6) is fixedly connected to the opposite end of the mounting plate (3), and the bottom end of the mounting bolt (5) is detachably connected to the outer wall of the top end of the pressure plate body (2).

5. The pressure plate assembly for a truck clutch according to claim 2, characterized in that: The top end of the honeycomb plate (13) is fixedly connected to the top end of the clutch cover (1), and the outer wall of the exhaust hole (14) at the opposite end is tightly attached to the opposite end of the exhaust groove (15).

6. A truck clutch pressure plate assembly according to claim 2, characterized in that: The bottom end of the air hole (12) is in close contact with the top end of the honeycomb plate (13), and the opposite end of the heat dissipation groove (11) is in close contact with the outer wall of the air permeable sheet (9).

7. The pressure plate assembly for a truck clutch according to claim 3, characterized in that: The bottom end of the boron-carbon alloy layer (17) is installed on the top end of the nickel-based alloy layer (18), and the bottom end of the phosphor bronze layer (20) is installed on the top end of the monel alloy layer (22).

8. The pressure plate assembly for a truck clutch according to claim 3, characterized in that: The boron-carbon alloy layer (17) and the high-carbon cast iron layer (16) both have a thickness of 20 mm and a diameter of 10 mm, and the monel alloy layer (22) both have a thickness of 10 mm and a diameter of 10 mm.

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