TW520424B - Guide mechanism for a wrapping power transmitter - Google Patents

Abstract

A guide mechanism of a wrapping power transmitter used in a wrapping power transmission system such as chain gearing system includes a slide contact member (2) having a front surface for contact with a wrapping power transmitter; a support member integrally formed with the slide contact member (2) to support the back of the slide contact member (2); an oil supply channel (6a) extending in the lengthwise direction of a contact surface of the slide contact member (2) for receiving lubricant oil; oil supply means located at an upstream portion of the slide contact member (2) with respect to the rotating direction of the power transmitter to supply lubricant oil onto the contact surface of the slide contact member (2); and a communication path (4) for communicating the oil supply means with the oil supply channel (6a).

Description

520424

Technical Scope This month relates to a guide mechanism of a power transmission member using, for example, a chain transmission mechanism (winding-type power transmission system, system, and more specifically, its lubrication device). 2. Description of the Related Art A conventional key-gear transmission mechanism 'its valve drive system for a knock-stroke cycle internal combustion engine' is disclosed, for example, in Japanese Patent Exhibition Publication No. 2000-97042. FIG. Π is a schematic view thereof, FIG. 14 is a front view of the tension arm shown in FIG. 13, FIG. 15 is a plan view thereof, and FIG. 16 is a cross-sectional view taken along the line XVI-XVI of FIG. 14 and FIG. The cross section taken. As shown in FIG. 13, the chain transmission mechanism includes a first key wheel 03 connected to a crank shaft, second and third sprocket wheels 0, 0, 7 connected to a cam shaft, and a chain which is wound around the three Sprockets 〇3, 〇6, 〇7 convey the rotation of the crankshaft to the camshaft. A chain tension device, which is arranged along the driven edge of the chain 08, includes an arm member 020, and a slider connected to the arm member 020 to allow the chain 08 to slide along it. The arm piece 〇2〇 has one end via a pivot pin 〇2 丨 pivotally supported 'and the other end (free end) is engaged by a piston 〇15a of a hydraulic tension device 〇15. As shown in FIG. 14 and FIG. The arm piece 020 has a pin slot 023 at one end thereof for receiving the pivot pin 021 (FIG. 13), and a through hole (inlet port) 20a formed at the other end thereof and having an oval cross section. The contact plane 020b extends approximately in an arc shape, and contacts the arm piece 020 and the slider 030, and an oil pipe 020c shown in FIGS. 16 and 17, which has a paper size of -4- suitable for China National Standard (CNS) A4 specification (210X297 mm) 520424 A7 B7 V. Description of the invention (2)-A roughly semi-circular cross section is made in the arm member 002 along the contact plane 002b. The oil pipe 020c communicates with the inlet port 020a, and the other end of the oil pipe reaches above the pin groove 023. The slider 03〇, which extends in an arc shape along the length direction, has a plurality of through holes 〇3 0a (two holes in the example shown). When the slider 03 is assembled with the arm member 0200, the through-holes 30a communicate with the oil pipe 020 of the arm member 0c. The slider also has a pipe 03 Ob opening upwards as shown in Figures 16 and 17 to guide the chain forward. The piston 0 1 5 a of the hydraulic tension device 0 1 5 has a spring (not shown), whereby the lubricant is supplied from a pressure oil supply source (not shown). In this type of chain transmission mechanism, when the first sprocket 03 (Fig. 13) rotates and the chain 08 is conveyed in the direction of the arrow, the hydraulic tension device 015 and the free end of the piston 015a pushing arm 020 are driven . Finally, the arm member 0 2 0 rotates around the frame pin 0 2 1 and the slider 0 3 0 advances the key bar 08 to distribute a proper tension to the chain 08. At that time, the lubricating oil from a pressure oil supply source (not shown) flows out from the piston 05a port (not shown) of the hydraulic tension device 015. The lubricating oil flowing out passes through the inlet port 0201 of the arm member 020, and enters the oil pipe 020c. The lubricating oil that has entered the oil pipeline 020c moves along the oil pipeline 020c toward the pin groove 023 of the arm member 020, and then enters the through hole 030a of the slider 030, which communicates with the oil pipeline 020c, and is moved by the slider The through hole 030a flows out on the outer surface. On the other hand, the chain 08 moves in the direction of the arrow (Fig. 13) and along the slider 03. At that time, the lubricating oil flowing out of the through hole 030a was scattered between the slider 030 and the chain 08. -5- This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) 520424 A7 B7 V. Description of the invention (3) Because the general guide mechanism cited above uses the contact along the arm piece 020 The oil pipeline 〇20c formed by the plane 020b and the slider 〇30, the object made on the arm piece 020 to communicate with the inlet port 020a of the oil pipeline 〇c, and the slider 030 component to make Similarly, a plurality of through holes 0300a communicating with the oil pipeline 020c is complicated and expensive. Furthermore, because the inlet port 020a is positioned close to the tail end relative to the circular movement direction of the chain 08, it makes the fuel consumption time supply to the surface of the slider 030. Disclosure of Invention In order to overcome the problems included in the prior art, such as the first aspect of the present invention, it provides a guide mechanism of a winding type power transmission member, the mechanism includes: a sliding contact member having a front surface for contacting the coil A wrap-around power transmission member; a support member integrally made in the sliding contact member to support its rear; an oil supply pipe extending in the lengthwise direction of the contact surface of the sliding contact member for receiving lubricating oil; The oil supply device is positioned upstream of the sliding contact member with respect to the rotation direction of the power transmission member to supply lubricating oil to the contact surface of the sliding contact member; and a communication path is used to communicate the oil supply device with This oil is supplied to the pipeline. Because the oil supply system

" Yue < and Ί 工 工 在 地 地. Drive it. In addition, the oil supply pipeline system is shown before the sliding contact member. In the present invention having the structure outlined above, the power supply member is provided upstream of the contact surface of the power transmission member. The surface of the family member. So, using a simple camera, $ 2〇424 A7

On the surface, and the lubricating oil is supplied, # h 总 Μ π, the lubricating oil is used to avoid splashing when sliding between the fins and the finding members. The existence of poor oil supply results in a reduction in the product a of the contact a between the power transmission member and the sliding contact member by V, which reduces the friction between them and slows down their wear. The mechanical structure may include a plurality of oil supply pipes.

In this case, it is easier for the lubricant to spread throughout the sliding contact member! And the shear resistance of the lubricant is reduced. In addition, since the contact area between the power transmission member and the sliding contact member in the oil supply pipe is small, the frictional force acting on the power transmission member is reduced. The mechanism may include oil supply pipes along each side of the contact surface of the contact member.

In this case, because the oil supply piping is positioned to extend along the opposite side of the contact surface of the sliding contact member, even if the power transmitting member is deflected to one side of the sliding contact member, and the lower end of one side of the power transmitting member is slid along The contact member-single-side contact-in the reservoir, the lubricating oil flowing along the corresponding sliding edge of the sliding contact member avoids abrasion of the part. The mechanism may include a storage mechanism in the oil supply pipe for storing the lubricating oil in the oil supply I. In this case, because the storage mechanism stores at least a fixed amount of the lubricating oil from the oil supply device, a sufficient amount of the lubricating oil can be supplied to the power transmission member even when the operation is started (the rotation of the power transmission member is started). Therefore, the power transmitting member can be smoothly rotated, and wear, vibration, and the like can be avoided. The storage mechanism may include a partition wall that distinguishes the oil supply pipe. In this case, the partition wall can not only store the lubricant, but also strengthen the oil.

(5) The rigidity of the parts of the supply pipe. Therefore, it avoids that the side wall surface of the oil supply pipe bends to the oil supply pipe with a load from the chain. Finally, the lubricating oil can protect the feet from ’, ′, Ό, and / or bone movement contact members from deterioration. The oil supply pipe may be closed at one end. "Here, this oil supply pipe can store insufficient lubricant when the power transmission member is stopped, and can reliably supply lubricating oil to the power transmission member when the power transmission member restarts and rotates. Therefore, in the long After the operation is stopped for a period of time, the power transmission member can smoothly rotate and protect against wear. The drawing briefly illustrates the enlarged side view of the free end part of the chain tension device in the embodiment of the invention, which is a section of Shaofen; Front view taken in the direction of the arrow n; FIG. 3 is a diagram illustrating the HHII line and a chain of FIG. 1 or FIG. 2; FIG. 4 is a front view of a chain tension device of the second embodiment of the present invention; ^ ^ 'FIG. 5 is a diagram illustrating a ν-ν line and a chain of FIG. 4; FIG. 5 is a view illustrating a chain of a third embodiment of the present invention: a free end of the force device i knife; FIG. 7 is a diagram Fig. 8f shows a front view of a free end portion of a chain tension device according to a fourth embodiment of the present invention; Fig. 9 is a front view of a fifth embodiment of the present invention; Tension device (free end Shao Figure 10 series Shows the free end of the chain tension device of the sixth embodiment of the present invention. -8- This paper is a national standard (CNS) A4 standard (21GX297 public s 520424 A7 ____ B7 ________ ^) 5. Front view of part of the description of the invention (6); Fig. 11 is a longitudinal sectional view taken along the line XI-X of Fig. 10; [Fig. 12 is a cross-sectional view taken along the line χΠ-χΙΙ of Fig. 10; Fig. 13 shows an existing chain drive Figure 14 is a front view of the tensioning device arm shown in Figure 13; Figure 15 is the same plan view; Figure 16 is a cross-sectional view taken along XVI-XVI of Figure 14; and Figure 17 is A cross-sectional view taken along XVII-XVII in Fig. 1. Best Mode for Carrying Out the Invention First Embodiment FIG. 1 is an enlarged side view of a free end part of a chain tension device in the embodiment of the present invention, which is a partial cross-section. Figure 2 is a front view taken from the direction of the arrow 11_11 in Figure 1. Figure 3 is a diagram showing the line of Figure 1 or Figure 2 iin_n; [line and a chain. In these figures, the reference number i indicates that the chain is a winding Type power transmission member, which is superimposed by a plurality of columns of chain plies 1 & in each layer, and in an infinite form It is connected to a bolt lb. The reference number 2 indicates that the slider is a 矸 sliding member, and its seven surfaces contact the chain 1. The slider 2 has a chain tension device royal body 3 as a supporting member, which is connected to the slider. The block 2 is integrally formed on the rear surface thereof. In this embodiment, the slider 2 has an oil supply pipe that extends along the front surface of the slider 2 along the length direction to supply lubricating oil. When the chain 1 When detached to one side of the slider 2, the oil supply pipe 6a has a width which prohibits the side of the chain 1 from falling into the oil supply pipe 6a. On the other hand, the piston of the hydraulic tension device is not shown in the figure ， 系 相 -9-This paper standard is applicable to China Standard (^ NS) A4 specification (21GX297 public director)-"520424 A7-_____B7 ____ 5. Description of the invention (7) For the direction of the chain The chain tension body 3 is arranged at an upstream position 'to work as an oil supply device for supplying lubricating oil to the surface of the slider 2' and the piston has an oil path therethrough. A lubricating oil path 4 is provided as a communication path for directly connecting the oil path to the oil supply pipe 6a 'and opening relative to the chain conveying direction into the oil supply pipe 6a upstream of the slider 2. The "upstream" side related to the direction of the chain transmission is used to indicate one of the longitudinal components of the slider, during which the transmission chain 1 starts to contact the slider 2, while the "downstream" side indicates the opposite side of the slider 2 during the transmission Each part of the chain 1 is separated from the slider 2 (continued in the description). The key chain 1 is wound around a sprocket, not shown in the figure, and guided and pushed by the slider 2 of the chain tension device. Moved by an oil pump, not shown, the lubricated oil is supplied by the hydraulic tension device behind the main body of the chain device, not shown, supplied by the piston, and then through the oil path 4, into the oil pipeline 6a at The upper surface of the slider 2. The lubricant moves along the lubricant path 4 in the length direction of the slider 2, thereby lubricating the entire contact surface of the chain 丨 and the slider 2. In this case, even by connecting a plurality of link plates It is obtained from pieces la to form, for example, a chain of a silent chain, and defines a flat surface for contacting the slider 2. The existence of the oil supply pipe 6a results in a reduction in the contact area between the chain and the slider 2, and can reduce friction Acts on the chain 2. Furthermore, even if the chain moves from the w lower level to the upper level, the lubricating oil is pulled up and spread in the chain conveying direction, and the lubricating oil can be supplied through the entire length of the slider 2. This embodiment also It is very effective, because the lubricant is directly supplied into the slider 2 -10- This paper size applies the Chinese national standard (21〇χ 297 公 董) 520424 A7 _ B7 " " " 1 ,, '... ~~ 'Fifth, the oil supply pipe 6a of the invention description (8)' in order to avoid-avoid the lubricating oil splashing due to the relative movement of the surface of the slider 2 and the chain i.-In this way, 'this instant embodiment can supply Lubricating oil to the entire length of the slider 2 and reducing the frictional force applied to the chain 1, and when a simple structure is used, it is driven smoothly. Second Embodiment FIG. 4 shows the freedom of the chain tension device of the second embodiment of the present invention Front view of the end portion. Fig. 5 is a diagram illustrating the V-V line and a chain of Fig. 4. In this embodiment, the two oil supply pipes 6b, 6b are along the front surface (contact surface of the slider 2). ) Provided by the side source. Lubricant supplied to the slider 2 passes through The oil path 4 flows into the oil supply pipes 6b, 6b, and moves through the entire length of the slider 2. In this way, the entire contact surface of the chain 1 and the slider 2 is lubricated. Furthermore, the oil supply pipe 6b, the compensation leads to the chain The contact area of 1 and the slider 2 is reduced, and therefore the frictional force is applied to the chain 1. In addition, since this second embodiment is certain that the lubricant flows along the two side edges of the slider 2, even if the chain 1 is deflected to as shown in FIG. One side of the slider 2 shown, and the lower end of the chain 1 along the side edge of one of the sliders 2 contact the reservoir and slow down the wear of its components. Furthermore, because this embodiment provides the oil supply pipe 6b at On the surface of the slider 2, the slider corresponds to the side edge angle of the chain, even when the chain follows during the rotation, avoiding the surface of the slider 2 from being worn by a corner of the chain. In addition, since part of the lubricating oil supplied to the contact surface is the remainder after the lubrication of the chain, it will flow into the oil supply pipe 61) on the opposite side. The embodiment of the Association can prevent the lubricating oil from splashing. -11-This paper size applies to China National Standard (CNS) A4 (210 x 297 mm)

Brothers consistently

The track 6c is on its surface. This structure is conducive to the spread of the lubricant and reduces the shear resistance of the lubricant. Now, the free end of the chain tension device of the embodiment fJ in the slider 2 has formed a sawtooth oil supply tube through the full width of the slider 2 and further

The center line of the slider 2 such as that shown in Fig. 7 is extended in the first embodiment. In the dry example, the oil supply pipe 6c extends through the sawtooth; however, the oil supply pipe can be modified in various modes, in which the terminal parts of the oil supply pipe 6 (1 are along the same fourth embodiment, FIG. ^ This is a perspective view of the free end injury of the chain tension device of the fourth embodiment of the present invention. In this embodiment, the oil supply pipe cores are parallel to each other and inclined to the length direction of the slider 2. This embodiment is intended when it is intended The choice is to deflect the chain to one side. During this period, for example, a leftward force is generated by the cantilever bracket of the chain sprocket, which is canceled by a rightward reaction force. If the chain is deflected to the left, then lubricate The oil also guides to the left and slows down the friction and wear of the left part of the slider 2. Fifth embodiment. Figure 9 is a front view illustrating the free end portion of the chain tension device of the fifth embodiment of the present invention. Implemented here In the example, a part of the slider 2 is positioned upstream for the chain 1 to initially contact the slider 2; in other words, the slider 2 is used to contact the chain i. This paper size applies to the Chinese National Standard (CNS) A4 specification (210X 297 mm). Centimeters) 520 424 V. Description of the invention (102) For the rotation direction of the chain 1, it is wider than the remainder of the slider 2. In addition, the oil supply pipe 6f extends from the upstream of the lubricating oil path 4 to the initial contact position 7, and its terminal system Closed: Because in this embodiment the upstream part of the slider 2 at the initial contact position 7 is fortunately wider than the rest, to provide a large contact area such as the instrument, the chain 1 can be stably positioned and rigid. The enhanced slider 2 can slow down the impact caused by contact with the chain i. Therefore, even if the pivot point of the main body 3 of the chain tensioning device exists in its downstream position with the rotation of the key bar 1, it avoids the slider 2Vibrate and hit the chain 1 to generate vibration or noise, or the rotation of the chain will not disturb. Moreover, in this embodiment, because the oil supply pipe 6f extends to the initial contact position 7, it is used to contact the chain and its The upstream end is closed. Even when the chain is stopped, a sufficient amount of lubricating oil can be stored in the oil supply pipe ", so that when the chain 1 restarts and rotates, the lubricating oil is reliably supplied to the chain 1. So in the internal combustion engine After a long period of time, the chain 丨 can rotate smoothly and avoid wear. Α If the slider 2 is positioned at a position, where the chain 丨 rotates downward from the upper position, approximately the same effect is positioned and lubricated If the oil path 4 reaches the uppermost position, it can be assured that it touches the upstream of position 7. If the slider 2 is arranged at a position where the chain 1 rotates upward from the lower part ρ, the oil supply pipe 6f exceeds the upstream of the lubricant path 4. Extension = ^ Will store lubricating oil in it 'and will resume gravity after a long stop ^

Can effectively lubricate the chain. I Sixth Embodiment FIG. 10 is a diagram illustrating a seventh embodiment of the present invention < Key bar tension installer & l < Head of the end-13- 520424 A7 __________B7 ___ V. Description of the invention (11) VII Nine Seven Views. Figure n is a longitudinal section taken along the χι_χι line of Figure 丨 〇. FIG. 12 is a cross-sectional view taken along the χπ_χπ line of FIG. In this embodiment, the oil supply pipe 6g extends along the center line of the sliding block which is the same as that of the first embodiment, and a plurality of dividing weirs 8 having a low depth of the oil supply pipe are provided as partition walls. In other words, the oil supply pipe 6g is divided into a plurality of sections by the partition weir 8 to form respective oil storage tanks 9. Therefore, a fixed amount of lubricating oil is always stored in each oil storage tank, and a key bar < smooth drive is provided. Moreover, even when, for example, sufficient lubricant is not supplied when the engine is started, because some lubricant is stored in the oil storage tank 9, it helps the key bar 1 to move smoothly, and avoids abrasion, vibration, etc., until the lubricant is normal. supply. Furthermore, in this embodiment, since the dividing weir 8 is provided to the oil supply pipe 6g to distinguish it, its contribution not only stores the lubricating oil, but also enhances the rigidity of the 6g of the oil supply pipe. Therefore, it prevents the side wall surface of the oil supply pipe 6g from being bent into the oil supply pipe 6g due to the load from the chain 1. Finally, the lubricant can be supplied stably, and the slider 2 is protected against deterioration. Furthermore, in this embodiment, the partition weir 8 is lower than the depth of the oil supply pipe 6g. The chain 1 cannot contact the partition weir 8 and avoid wear and noise. In addition, the lubricating oil can be stored in the oil supply pipe 6g without disturbing the movement of the lubricating oil in the oil supply pipe 6g. The partition weir 8 does not need to be those shown in the figure, and it spans between the opposing wall surfaces of the oil supply pipe 6g. For example, it may extend in a zigzag manner. However, in order to make sure that the rotation of the chain 1 spreads the lubricant over the length of the oil supply pipe 6g, it is important that the height of the partition weir 8 is lower than the side wall of the oil supply pipe 6g. In other words, the oil supply -14-

This paper size is in accordance with China National Standard (CNS) A4 specification (21 × 297 mm) 520424 A7 _____ B7 V. Description of the invention (12) Give the pipe a depth of 6g. The previous embodiment has explained that the supply of lubricating oil comes from the rear of the main body 3 of the chain tension device, and passes through the lubricating oil passage 4 to the front surface (contact surface) of the slider 2. However, the device for supplying lubricating oil is not limited to this. For example, lubrication can be filled with oil through the space between the chain 1 and the slider 2 and flowed into the oil supply pipe and other components. In the previous embodiment, the oil supply pipes 遒 6a, 讣, see below, are fully in the length direction of the slider 2 and need not extend over the entire length. The front surface of the slider 2 (its surface is used to contact the chain 1) is preferably facing up, but ^ ^ K is facing down, because the chain 1 covers it, and the lubricant has -viscosity, and the surface can be stored -15-

Claims (1)

520424 6. Scope of patent application! · A guide mechanism for a winding type power transmission member, including a sliding contact member, which has a front surface dagger 3: type power transmission member; for contacting a winding support member ' It is integrally formed at the back of the support; the contact member is actuated to support the oil supply pipe, which extends in the direction of the sliding degree for receiving the lubricating oil; the long oil supply device of the contact surface is opposite to The power transmission structure foot is located upstream of the sliding contact member: the universal contact surface of the moving contact member; and ^ to supply lubricating oil to the slideway: communication road! It is used to communicate the oil supply ^ with the oil supply pipe 2_ I = the guide mechanism of the winding type power transmission member of the first item of the range ', wherein it provides a plurality of the oil supply pipes. 3. If the patent scope is declared! The guide mechanism of a winding type power transmission member, wherein the oil supply pipe is provided along each pair of vertical side edges of the contact surface of the sliding member. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 4. If the guidance mechanism of the coiled-type power transmission component of the scope of application for the patent application, one of the storage mechanisms is provided in the oil supply pipe to store the oil Lubricant supplied by the supply device. 5. The guiding mechanism of the winding type power transmission member according to item 1 of the patent application, wherein the storage mechanism is used to store the lubricating oil supplied from the oil supply device, and distinguishes the oil supply pipeline. Teng Nian. 6. The guide mechanism of the winding type power transmission member as described in the first item of the patent application, wherein the oil supply pipe end is closed. 16 This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)