Transmission mechanism of cleaning machine

Abstract

The utility model discloses a transmission mechanism of a cleaning machine. The transmission mechanism comprises a box body; the crankshaft is connected with power and used for transmitting rotating force; the connecting rod is arranged on the protruding part in a sleeving mode, a spiral groove is formed in the inner wall of the connecting rod, and the spiral groove spirally extends to the two ends of the connecting rod in the width direction of the inner wall of the connecting rod and is used for guiding and discharging chippings generated in the rotating process of the crankshaft; one end of the plunger is rotationally arranged on the connecting rod through a plunger pin, and a spiral groove is formed in the inner wall of the connecting rod, so that lubricating oil can be promoted to be uniformly distributed along the inner wall of the connecting rod, 360-degree all-dimensional lubrication is realized, and metal scraps, abrasion particles and other impurities generated in the operation process of the crankshaft can be effectively guided and discharged.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning machines, and in particular to a transmission mechanism of a cleaning machine. Background Art

[0002] High-pressure cleaners are an efficient cleaning tool widely used in industrial cleaning, vehicle cleaning and building maintenance. The crankshaft connecting rod assembly inside the high-pressure cleaner plays a key role in energy transmission and power conversion.

[0003] However, traditional crankshaft connecting rods often face some problems in long-term operation: First, the contact surface between the connecting rod and the crankshaft is prone to wear during high-speed rotation and frequent reciprocating motion of the crankshaft connecting rod, so it needs to be lubricated, but in traditional designs, the lubricant is often difficult to distribute evenly over the entire contact surface; Second, during the operation of the crankshaft connecting rod, metal debris, dust and wear particles are inevitably generated. If these impurities are not removed in time, they will accumulate inside the connecting rod, increase the friction between mechanical parts, and even block the lubrication channel, seriously affecting the normal operation and service life of the crankshaft connecting rod.

[0004] The above contents are only used to assist in understanding the technical solution of the present application, and do not constitute an admission that the above contents are the closest prior art to the present application. Summary of the invention

[0005] Based on this, the present application provides a transmission mechanism of a cleaning machine to solve one of the above technical problems.

[0006] The technical solution adopted by the present application to solve its technical problems is to include: a housing; a crankshaft connected to a power source for transmitting a rotational force; a connecting rod sleeved on the protrusion, the inner wall of which is provided with a spiral groove, the spiral groove extending in a spiral shape along the width direction of the inner wall of the connecting rod to both ends of the connecting rod, for guiding and discharging debris generated by the crankshaft during rotation; a plunger, one end of which is rotatably arranged on the connecting rod through a plunger pin.

[0007] In some embodiments, the connecting rod includes an upper connecting rod and a lower connecting rod cover, and the upper connecting rod and the lower connecting rod cover are connected by bolts.

[0008] In some embodiments, the inner walls of the upper connecting rod and the lower connecting rod cover are both provided with spiral grooves.

[0009] In some embodiments, a flange is disposed outside the box body.

[0010] In some embodiments, the crankshaft is provided with different connecting rod journals, and the connecting rods are respectively provided on the connecting rod journals on the crankshaft.

[0011] In some embodiments, both ends of the plunger pin are fixed at the connection between the plunger and the connecting rod by means of retaining springs.

[0012] In some embodiments, an oil seal is provided on the outer periphery of the plunger.

[0013] In some embodiments, a slot hole is disposed outside the housing through which the plunger passes.

[0014] The beneficial effect of the present application is that the spiral grooves provided on the inner wall of the connecting rod can promote the uniform distribution of lubricating oil along the inner wall of the connecting rod, achieving 360-degree all-round lubrication. This design ensures that when the connecting rod rotates at high speed and bears high load, all contact surfaces can be fully lubricated, reducing mechanical wear, and can also effectively guide and discharge metal debris, wear particles and other impurities generated during the operation of the crankshaft. These impurities are quickly discharged, avoiding their accumulation inside the connecting rod, reducing additional wear and potential mechanical failures caused by debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of this application.

[0017] Figure 2 It is a schematic diagram of the internal structure of this application.

[0018] Figure 3 It is a cross-sectional structural schematic diagram of the present application.

[0019] Figure 4 It is a schematic diagram of the connecting rod plunger connection of the present application.

[0020] Explanation of the accompanying figures: 1. Housing; 11. Slot; 2. Crankshaft; 21. Connecting rod journal; 3. Connecting rod; 31. Spiral groove; 32. Upper connecting rod; 33. Lower connecting rod cover; 34. Bolt; 4. Plunger; 5. Plunger pin; 6. Flange; 7. Circlip; 8. Oil seal. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to achieve. When the combination of technical solutions is contradictory or cannot be achieved, it should be considered that the combination of such technical solutions does not exist and is not within the scope of protection of this application.

[0022] In the embodiments of this application, please refer to Figure 1-4 As shown, the present application provides a transmission mechanism of a cleaning machine, which mainly includes: a housing 1; a crankshaft 2, which is connected to a power source and is used to transmit a rotational force; a connecting rod 3, which is sleeved on the protrusion and has an inner wall with a spiral groove 31, wherein the spiral groove 31 extends in a spiral shape along the width direction of the inner wall of the connecting rod 3 to both ends of the connecting rod 3, and is used to guide and discharge debris generated by the crankshaft 2 during rotation; a plunger 4, one end of which is rotatably arranged on the connecting rod 3 through a plunger pin 5.

[0023] Specifically, when the crankshaft 2 needs to be lubricated, the design of the spiral groove 31 allows the lubricating oil to gradually lubricate all parts as the crankshaft 2 rotates. Metal debris, dust and wear particles will inevitably be generated as the crankshaft 2 rotates, and the design of the spiral groove 31 allows these debris to enter the spiral groove 31 and be discharged as the crankshaft 2 rotates, reducing the possibility of these debris entering the crankshaft 2 and the connecting rod 3.

[0024] Some preferred / improved embodiments based on the above embodiments will be described below. Any one of the following embodiments may be selected, or multiple embodiments may be selected and combined.

[0025] Reference Figure 4 As shown, in order to stably install the connecting rod 3 on the crankshaft 2 , the connecting rod 3 includes an upper connecting rod 32 and a lower connecting rod cover 33 , and the upper connecting rod 32 and the lower connecting rod cover 33 are connected by bolts 34 .

[0026] Specifically, the inner walls of the upper connecting rod 32 and the lower connecting rod cover 33 are both provided with spiral grooves 31 , and such a configuration enables the spiral grooves 31 to achieve a better chip removal effect.

[0027] Reference Figure 1 As shown, a flange 6 is arranged outside the box body 1, and such arrangement enables the box body 1 to be better connected to a water pump or a motor.

[0028] Reference Figure 3As shown, in order to make the plunger 4 reciprocate at different times as the crankshaft 2 rotates, different connecting rod journals 21 are provided on the crankshaft 2 , and the connecting rods 3 are respectively provided on the connecting rod journals 21 on the crankshaft 2 .

[0029] Preferably, the two ends of the plunger pin 5 are fixed at the connection between the plunger 4 and the connecting rod 3 by means of retaining springs 7. This arrangement prevents the plunger pin 5 from falling off due to slight vibrations and thus damaging internal parts.

[0030] Reference Figure 2 As shown, in order to prevent the movement of the plunger 4 from affecting the internal parts of the housing 1 and to prevent liquid from entering the housing 1 and causing damage to the parts, an oil seal 8 is provided on the periphery of the plunger 4 .

[0031] Specifically, in order to enable the box body 1 to be connected to the water pump, a slot 11 through which the plunger 4 passes is provided outside the box body 1 .

[0032] So far, various embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed herein.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present application, and the aforementioned embodiments are only used to illustrate the technical solution of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that it is still possible to modify the technical solutions recorded in the aforementioned embodiments, or to make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not drive the essence of the corresponding technical solutions away from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A transmission mechanism of a cleaning machine, characterized in that: include: Box; The crankshaft is connected to the power source and is used to transmit the rotational force; A connecting rod, sleeved on the crankshaft, with a spiral groove on the inner wall, the spiral groove extending in a spiral shape along the width direction of the inner wall of the connecting rod to both ends of the connecting rod, for guiding and discharging debris generated during the rotation of the crankshaft; A plunger, one end of which is rotatably arranged on the connecting rod through a plunger pin.

2. The transmission mechanism of a cleaning machine according to claim 1, characterized in that: The connecting rod comprises an upper connecting rod and a lower connecting rod cover, and the upper connecting rod and the lower connecting rod cover are connected by bolts.

3. The transmission mechanism of a cleaning machine according to claim 2, characterized in that: The inner walls of the upper connecting rod and the lower connecting rod cover are both provided with spiral grooves.

4. The transmission mechanism of a cleaning machine according to claim 1, characterized in that: A flange is arranged outside the box body.

5. The transmission mechanism of a cleaning machine according to claim 1, characterized in that: The crankshaft is provided with different connecting rod journals, and the connecting rods are respectively arranged on the connecting rod journals on the crankshaft.

6. The transmission mechanism of a cleaning machine according to claim 1, characterized in that: The two ends of the plunger pin are fixed at the connection between the plunger and the connecting rod by means of retaining springs.

7. The transmission mechanism of a cleaning machine according to claim 1, characterized in that: An oil seal is arranged on the outer periphery of the plunger.

8. The transmission mechanism of a cleaning machine according to claim 1, characterized in that: The box body is provided with a slot hole through which the plunger passes.

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