Saw chain adjustment structure of oil pump

By designing a saw chain adjustment structure for an oil pump chain saw, the rotation rod and worm gear mechanism are used to achieve rapid adjustment of saw chain tension, and precisely control lubrication through quantitative lubrication components, the problem of cumbersome and low accuracy is solved, and the adjustment accuracy and operation efficiency of the chain saw are improved.

CN222726896UActive Publication Date: 2025-04-08ZHEJIANG CHAOHONG MASCH CO LTD
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Patent Information

Application Number
CN202421268472.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-05
Publication Date
2025-04-08
Estimated Expiration
2034-06-05

AI Technical Summary

Technical Problem

The traditional oil pump chain saw is complicated and has low precision when adjusting the tension of the saw chain, making it difficult to meet the demand for precise control of the tension of the saw chain.

Method used

A saw chain adjustment structure of an oil pump is designed, and the worm and worm gear are driven to mesh with each other through a rotating rod, which drives the second threaded rod to rotate, so that the moving parts move left and right, thereby adjusting the tension of the saw chain. At the same time, the addition of lubricating oil is accurately controlled through quantitative lubricating components to reduce chain friction.

Benefits of technology

It realizes rapid and convenient adjustment of saw chain tension, improves adjustment accuracy, saves operating time and energy, and extends the chain life through precise lubrication, improving the operating efficiency of chain saw.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of cutting equipment, and discloses a saw chain adjustment structure of an oil pump, including a housing, an assembly shell is fixedly connected to the outside of the housing, two second threaded rods are movably connected to the inside of the assembly shell through a bearing, one end of the second threaded rod is fixedly connected to a worm wheel, the outside of the second threaded rod is threadedly connected to a moving part, the outside of the moving part is fixedly connected to two limit rods, the outside of the limit rod is threadedly connected to a locking nut, a rotating rod is rotatably connected to the top through hole of the assembly shell, and two worms are fixedly connected to the outside of the rotating rod. In the utility model, by rotating the rotating rod, the two worms are rotated, and the second threaded rod is driven to rotate under the action of the worm wheel, so that the moving part moves left and right, so that the tension adjustment of the saw chain becomes faster and more convenient.
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Description

Technical Field

[0001] The utility model relates to the technical field of cutting equipment, in particular to a saw chain regulating structure of an oil pump. Background Art

[0002] With the development of industrialization, oil pump electric saws are widely used in logging, wood processing and other fields. In traditional oil pump electric saws, the saw chain is usually fixed by bolts and nuts, and the tightness of the saw chain is adjusted by adjusting the tension of the bolts. However, this adjustment method has some problems:

[0003] First, the adjustment process is cumbersome. The traditional adjustment method requires the use of tools such as bolt wrenches, which is complicated to operate. It is not only time-consuming and labor-intensive, but also prone to inaccurate adjustment. Second, the adjustment accuracy is not high. Since the traditional bolt adjustment method is limited by factors such as thread accuracy and operating technology, the adjustment accuracy is often not high enough to meet the demand for precise control of saw chain tension. For this reason, technicians in this field have proposed a saw chain adjustment structure of an oil pump to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a saw chain adjustment structure of an oil pump, aiming to improve the problem that the existing oil pump electric saw is inconvenient in adjusting the tension of the saw chain.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a saw chain adjustment structure of an oil pump, comprising a shell, an assembly shell is fixedly connected to the outside of the shell, two second threaded rods are movably connected to the inside of the assembly shell through a bearing, one end of the second threaded rod is fixedly connected to a worm gear, the outside of the second threaded rod is threadedly connected to a moving part, the outside of the moving part is fixedly connected to two limit rods, the outside of the limit rod is threadedly connected to a locking nut, a rotating rod is rotatably connected to the top through hole of the assembly shell, two worms are fixedly connected to the outside of the rotating rod, the worm and the worm gear are meshed with each other, a supporting steel plate is installed inside the shell, two mounting grooves are provided on the outer surface of the supporting steel plate, and a quantitative lubrication assembly is installed on the top of the shell.

[0006] As a further description of the above technical solution:

[0007] The quantitative lubrication assembly includes a mounting shell, which is fixedly connected to one side of the top end of the shell, a first threaded rod is rotatably connected inside the mounting shell, a threaded sleeve is threadedly connected to the outside of the first threaded rod, two connecting rods are fixedly connected to the outer surface of the threaded sleeve, a rubber piston is fixedly connected to one end of the connecting rod, a connecting pipe is connected to the lower side of the mounting shell, and a control valve is installed on the outside of the connecting pipe.

[0008] As a further description of the above technical solution:

[0009] The outer side of the shell is fixedly connected with a storage box, the outer side of the storage box is fixedly connected with a micro pump body, the output end of the micro pump body is fixedly connected with a second transport pipe, and the input end of the micro pump body is fixedly connected with a first transport pipe.

[0010] As a further description of the above technical solution:

[0011] One end of the second transport pipe is connected to the top of the installation shell, the other end of the first transport pipe is connected to the outside of the storage box, and a control valve is installed outside the second transport pipe.

[0012] As a further description of the above technical solution:

[0013] A saw chain is arranged on the outer surface of the supporting steel plate, and the two limiting rods are arranged inside the mounting grooves at corresponding positions respectively.

[0014] As a further description of the above technical solution:

[0015] A driving gear is installed inside the housing, the driving gear is meshed with the saw chain, and the driving gear is driven by a motor.

[0016] As a further description of the above technical solution:

[0017] The longitudinal section of the rubber piston is arranged to be square, and the outer surface of the rubber piston is fitted with the inner wall of the mounting shell.

[0018] As a further description of the above technical solution:

[0019] One end of the first threaded rod is fixedly connected to a rotating handle, and the outer surface of the rotating handle is provided with anti-slip grooves.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, the two worms are rotated by rotating the rotating rod, and the second threaded rod is driven to rotate under the action of the worm wheel, so that the moving part moves left and right, thereby making the tension adjustment of the saw chain faster and more convenient. The operator does not need to use tools, but only needs to simply operate the adjustment structure to adjust the tension of the saw chain, saving a lot of time and energy.

[0022] 2. In the utility model, by adding a mounting shell, a rotating handle, a transport tube, a first threaded rod, a threaded sleeve, a connecting rod and other structures and using them in coordination with each other, the lubricating oil can be accurately controlled and adjusted to ensure that the chain saw obtains just the right amount of lubrication during use, thereby minimizing the friction between the chain and the chain guide plate, extending the life of the chain, and improving the operating efficiency of the electric saw. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of a saw chain adjustment structure of an oil pump proposed by the utility model;

[0024] Figure 2 A schematic diagram of a supporting steel plate structure of a saw chain adjustment structure of an oil pump proposed by the utility model;

[0025] Figure 3 A cross-sectional view of an assembly shell of a saw chain adjustment structure of an oil pump proposed by the utility model;

[0026] Figure 4 A cross-sectional view of a mounting shell of a saw chain adjustment structure of an oil pump proposed in the utility model;

[0027] Figure 5 The utility model provides a saw chain structure schematic diagram of a saw chain adjustment structure of an oil pump.

[0028] Legend:

[0029] 1. Shell; 201. Mounting shell; 202. Rotating handle; 203. Transport tube; 204. First threaded rod; 205. Threaded sleeve; 206. Connecting rod; 207. Rubber piston; 301. Storage box; 302. First transport tube; 303. Micro pump body; 304. Second transport tube; 401. Assembly shell; 402. Second threaded rod; 403. Moving part; 404. Worm; 405. Worm wheel; 406. Rotating rod; 407. Limiting rod; 408. Mounting groove; 409. Locking nut; 5. Supporting steel plate; 6. Saw chain; 7. Driving gear. DETAILED DESCRIPTION

[0030] 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.

[0031] Reference Figure 1 , Figure 3 and Figure 5The utility model provides an embodiment: a saw chain adjustment structure of an oil pump, comprising a shell 1, an assembly shell 401 is fixedly connected to the outside of the shell 1, two second threaded rods 402 are movably connected to the inside of the assembly shell 401 through a bearing, one end of the second threaded rod 402 is fixedly connected to a worm gear 405, the outer thread of the second threaded rod 402 is threadedly connected to a moving part 403, the outer side of the moving part 403 is fixedly connected to two limiting rods 407, the outer thread of the limiting rod 407 is threadedly connected to a locking nut 409, a rotating rod 406 is rotatably connected to the top through hole of the assembly shell 401, and two worms 404 are fixedly connected to the outside of the rotating rod 406, and the worm 404 and the worm gear 405 are meshed with each other, a supporting steel plate 5 is installed inside the shell 1, and two mounting grooves 408 are provided on the outer surface of the supporting steel plate 5, and a quantitative lubrication component is installed on the top of the shell 1.

[0032] Specifically, the function of the mounting groove 408 is to facilitate the insertion of the rotating rod 406 into the mounting groove 408. The outer surface of the limiting rod 407 is provided with a thread, and the outer thread thereof is connected with a locking nut 409. The supporting steel plate 5 and the moving member 403 are connected by the locking nut 409. When the rotating rod 406 rotates, the worm 404 is driven to rotate synchronously. Under the action of the worm wheel 405, the second threaded rod 402 is driven to rotate coaxially, so that the moving member 403 moves along the outer surface of the second threaded rod 402. Since the supporting steel plate 5 is fixed on the outer surface of the moving member 403 by the locking nut 409, the movement of the moving member 403 drives the supporting steel plate 5 to move synchronously, thereby realizing the adjustment of the tension of the saw chain 6. The operator does not need to use tools, but only needs to simply operate the adjustment structure to adjust the tension of the saw chain 6, which saves a lot of time and energy. At the same time, since there is no need to disassemble bolts or other parts, the time required to adjust the tension of the saw chain 6 is greatly shortened. This can reduce the downtime during maintenance and improve the production efficiency of the electric saw.

[0033] Please see attached Figure 4 The quantitative lubrication assembly includes a mounting shell 201, which is fixedly connected to one side of the top of the housing 1. The first threaded rod 204 is rotatably connected inside the mounting shell 201, and the first threaded rod 204 is externally threadedly connected to a threaded sleeve 205. Two connecting rods 206 are fixedly connected to the outer surface of the threaded sleeve 205, and one end of the connecting rod 206 is fixedly connected to a rubber piston 207. The lower side of the mounting shell 201 is connected to a connecting pipe 203, and a control valve is installed outside the connecting pipe 203.

[0034] Specifically, the first threaded rod 204 is rotated by rotating the handle 202, and the threaded sleeve 205 is further driven to move left and right. Since the connecting rod 206 and the threaded sleeve 205 are connected to each other, the threaded sleeve 205 drives the connecting rod 206 to move synchronously when it moves, and at this time drives the rubber piston 207 to move synchronously, and injects the lubricating oil inside the mounting shell 201 into the outer surface of the saw chain 6 through the connecting pipe 203. The mounting shell 201 is made of transparent material, and the outer surface is engraved with scales, so the initial position of the rubber piston 207 is changed, so that the lubricating oil can be accurately controlled and adjusted. The function of the control valve is to facilitate the staff to flexibly open and close the connecting pipe 203.

[0035] Please see attached Figure 1 , Attachment Figure 2 The outer side of the shell 1 is fixedly connected with a storage box 301, the outside of the storage box 301 is fixedly connected with a micro pump body 303, the output end of the micro pump body 303 is fixedly connected with a second transport pipe 304, and the input end of the micro pump body 303 is fixedly connected with a first transport pipe 302; one end of the second transport pipe 304 is connected to the top of the installation shell 201, and the other end of the first transport pipe 302 is connected to the outside of the storage box 301, and a control valve is installed on the outside of the second transport pipe 304;

[0036] Specifically, by starting the micro pump body 303 , the lubricating oil in the storage box 301 is transported to the second transport pipe 304 through the first transport pipe 302 , and then enters the interior of the installation shell 201 from the second transport pipe 304 .

[0037] Please see attached Figure 5 A driving gear 7 is installed inside the housing 1, and the driving gear 7 is meshed with the saw chain 6, and the driving gear 7 is driven by a motor; the saw chain 6 is arranged on the outer surface of the supporting steel plate 5, and two limit rods 407 are respectively arranged inside the mounting grooves 408 at corresponding positions;

[0038] Specifically, the driving gear 7 is driven by an external motor, which is an existing mature technical means and is well known to those skilled in the art, so it will not be repeated here.

[0039] Please see attached Figure 4 , the longitudinal section of the rubber piston 207 is set to be square, and the outer surface of the rubber piston 207 is in contact with the inner wall of the mounting shell 201;

[0040] Specifically, when the rubber piston 207 moves, the lubricating oil inside the mounting shell 201 enters the outer surface of the saw chain 6 through the connecting pipe 203 .

[0041] Please see attached Figure 4 One end of the first threaded rod 204 is fixedly connected to a rotating handle 202 , and an outer surface of the rotating handle 202 is provided with anti-slip grooves.

[0042] Specifically, the first threaded rod 204 is rotated by rotating the rotating handle 202 , and the design of the anti-slip pattern facilitates the staff to rotate the rotating handle 202 better.

[0043] Working principle: When the device is used specifically, when the tension of the saw chain 6 needs to be adjusted, the rotating rod 406 is rotated to rotate the worm 404, and further drives the two worm wheels 405 to rotate, driving the second threaded rod 402 to rotate coaxially, so that the moving member 403 moves along the outer surface of the second threaded rod 402. Since the supporting steel plate 5 is fixed to the outer surface of the moving member 403 by the locking nut 409, the movement of the moving member 403 drives the supporting steel plate 5 to move synchronously, thereby realizing the adjustment of the tension of the saw chain 6. The operator does not need to use tools, but only needs to simply operate the adjustment structure to adjust the tension of the saw chain 6, saving a lot of time and energy.

[0044] In addition, when the saw chain 6 needs to be lubricated, the micro pump body 303 is started to transport the lubricating oil inside the storage box 301 through the first transport pipe 302 to the second transport pipe 304, and then enters the interior of the mounting shell 201 from the second transport pipe 304. At this time, the rotating handle 202 is rotated to rotate the first threaded rod 204, further driving the threaded sleeve 205 to move along the outer surface of the first threaded rod 204. Under the action of the connecting rod 206, the rubber piston 207 is driven to move synchronously, and the lubricating oil inside the mounting shell 201 is injected into the outer surface of the saw chain 6 through the connecting pipe 203. The mounting shell 201 is made of transparent material and has scales engraved on the outer surface. Therefore, by changing the initial position of the rubber piston 207, the lubricating oil can be quantitatively added to ensure that the saw chain 6 obtains just the right lubrication during use, thereby minimizing the friction between the chain and the chain guide plate, extending the life of the chain, and improving the operating efficiency of the electric saw.

[0045] 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 saw chain adjustment structure for an oil pump, comprising a housing (1), characterized in that: The shell (1) is fixedly connected to an assembly shell (401) on the outside. Two second threaded rods (402) are movably connected to the assembly shell (401) via bearings. One end of the second threaded rod (402) is fixedly connected to a worm wheel (405). The second threaded rod (402) is externally threadedly connected to a moving part (403). Two limiting rods (407) are fixedly connected to the outside of the moving part (403). The limiting rod (407) is externally threadedly connected to a locking nut (409). A rotating rod (406) is rotatably connected to a through hole at the top of the assembly shell (401). Two worms (404) are fixedly connected to the outside of the rotating rod (406). The worms (404) and the worm wheel (405) are meshed with each other. A supporting steel plate (5) is installed inside the shell (1). Two mounting grooves (408) are provided on the outer surface of the supporting steel plate (5). A quantitative lubrication component is installed on the top of the shell (1).

2. The saw chain adjustment structure of an oil pump according to claim 1, characterized in that: The quantitative lubrication assembly comprises a mounting shell (201), the mounting shell (201) being fixedly connected to one side of the top end of the housing (1), the mounting shell (201) being rotatably connected to a first threaded rod (204) inside, the first threaded rod (204) being externally threadedly connected to a threaded sleeve (205), the outer surface of the threaded sleeve (205) being fixedly connected to two connecting rods (206), one end of the connecting rod (206) being fixedly connected to a rubber piston (207), the lower side of the mounting shell (201) being connected to a connecting pipe (203), the outside of the connecting pipe (203) being provided with a control valve.

3. The saw chain adjustment structure of an oil pump according to claim 1, characterized in that: The outer side of the housing (1) is fixedly connected to a storage box (301), the outside of the storage box (301) is fixedly connected to a micro pump body (303), the output end of the micro pump body (303) is fixedly connected to a second transport tube (304), and the input end of the micro pump body (303) is fixedly connected to a first transport tube (302).

4. The saw chain adjustment structure of the oil pump according to claim 3, characterized in that: One end of the second transport pipe (304) is connected to the top of the installation shell (201), the other end of the first transport pipe (302) is connected to the outside of the storage box (301), and a control valve is installed outside the second transport pipe (304).

5. The saw chain adjustment structure of an oil pump according to claim 1, characterized in that: A saw chain (6) is arranged on the outer surface of the supporting steel plate (5), and the two limiting rods (407) are respectively arranged inside the mounting grooves (408) at corresponding positions.

6. The saw chain adjustment structure of an oil pump according to claim 1, characterized in that: A driving gear (7) is installed inside the housing (1), the driving gear (7) is meshed with the saw chain (6), and the driving gear (7) is driven by a motor.

7. The saw chain adjustment structure of an oil pump according to claim 2, characterized in that: The longitudinal section of the rubber piston (207) is arranged to be square, and the outer surface of the rubber piston (207) is in contact with the inner wall of the mounting shell (201).

8. The saw chain adjustment structure of an oil pump according to claim 2, characterized in that: One end of the first threaded rod (204) is fixedly connected to a rotating handle (202), and the outer surface of the rotating handle (202) is provided with anti-slip grooves.