Open type gear and rack transmission structure

Abstract

The utility model discloses an open type gear rack transmission structure, which relates to the technical field of transmission structures and comprises a gear, a rack is arranged on one side of the gear, an oil storage tank is arranged at the top of the gear, an oil storage cavity is arranged in the oil storage tank, an oil passage is arranged in the gear, and plugging balls are arranged on two sides of part of teeth of the gear. And springs are arranged between the plugging balls. The oil storage tank is installed on the top of the gear, it is guaranteed that the oil leakage hole is aligned with the oil passing channel to enable lubricating oil to flow in, when the gear operates, the blocking balls on the two sides of the teeth are squeezed to move into the oil passing channel, and the lubricating oil seeps out through the gap to lubricate the meshed portion. Friction loss is reduced, overflow and waste of lubricating oil are avoided, an operator only needs to supplement the oil storage tank regularly, and the technical problem that waste is caused due to the fact that lubricating oil added to the meshing position of the gear and the rack regularly flows outside the gear and the rack is solved.

Description

Technical Field

[0001] This utility model relates to the field of transmission structure technology, specifically an open gear and rack transmission structure. Background Technology

[0002] An open-type rack and pinion drive module is a mechanical transmission device that achieves linear motion through the meshing of gears and racks. Its core components include a cylindrical gear and a linear rack with parallel teeth. When the gear rotates, it meshes with the rack, converting rotational motion into precise linear displacement. The open design exposes the structure, making it easy to install, easy to maintain, and providing good heat dissipation, while also reducing processing and manufacturing costs. This module is commonly used in automated equipment, CNC machine tools, industrial robots, and linear positioning systems, and is particularly suitable for medium to high load, high rigidity applications where dust protection requirements are not stringent.

[0003] In the prior art, when using gear racks, in order to reduce the friction at their meshing points, lubricating oil is usually added to the meshing points of the gears and racks. For open gear racks, operators will periodically add lubricating oil to the meshing points of the gear racks. However, this method of adding lubricating oil will cause the lubricating oil to flow through the meshing points of the gear racks and thus flow to the outside of the gear racks. Only a very small amount of lubricating oil remains on the gear racks, resulting in waste. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide an open gear and rack transmission structure to solve the technical problem that the lubricating oil added to the meshing part of the gear and rack periodically will flow to the outside of the gear and rack, causing waste.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an open gear and rack transmission structure, including a gear, a rack movably connected to one side of the gear, an oil storage tank fixedly connected to the top of the gear, an oil storage cavity inside the oil storage tank, an oil passage inside the gear, and sealing balls movably connected to both sides of some teeth of the gear, with each set of sealing balls located inside the oil passage. A spring is installed between every two sets of sealing balls, and the two sets of sealing balls are elastically connected.

[0006] By adopting the technical scheme, the gear and the rack are mutually engaged when in use, the top motor drives the gear to rotate after being started, the rack is fixed on the base, the gear drives the sliding seat to move along the slide rail to realize the transmission function, the oil storage tank is installed on the top of the gear, the bottom connecting rod penetrates through the gear and is fixed through the nut, the oil leakage hole is aligned with the oil passage to make the lubricating oil flow in, the gear teeth are embedded in the rack when the gear rotates, the blocking balls on both sides of the engaged gear teeth are extruded to move into the oil passage, the lubricating oil seeps out through the gap to lubricate the engaged part, the oil passage is arranged in the selected part of the gear teeth and the blocking ball is arranged, the lubricating effect can be ensured and the gear strength can be maintained, the design automatically releases the lubricating oil by the rotation of the gear, the friction loss is reduced and the lubricating oil is avoided from overflowing and wasting, the operator only needs to periodically supplement the oil storage tank, and the technical problem that the lubricating oil added to the gear rack engagement part flows to the outside of the gear rack to cause waste is solved.

[0007] Further, the resistance block is movably connected to the bottom of the oil storage tank, the connecting rod is fixedly connected to the bottom of the resistance block, the connecting rod penetrates through the gear, and the outer wall of the bottom of the connecting rod is provided with external threads.

[0008] By adopting the technical scheme, the gear is connected with the oil storage cavity through the oil passage, and the oil storage tank is provided with an oil inlet on the top.

[0009] Further, the gear is provided with a motor on the top, the output end of the motor is fixedly connected with the gear through a rotating shaft, the bottom of the rack is fixedly connected with a base, the top of the base is fixedly connected with two groups of slide rails, the rotating shaft of the output end of the motor is rotatably connected with a sliding seat outside, and the sliding seat is slidably connected with the slide rails.

[0010] By adopting the technical scheme, the motor on the top of the gear drives the gear to rotate after being started, the gear and the rack are in the engaged state, the rack is fixed on the base, the gear drives the sliding seat to slide on the slide rail, and the transmission effect between the gear and the rack is realized.

[0011] In summary, the utility model mainly has following beneficial effect: the utility model discloses through using gear and rack interlock, top motor starts and drives gear rotation, because rack is fixed on base, gear rotation drives sliding seat to move along slide rail to realize transmission function, oil storage tank is installed at the top of gear, and its bottom connecting rod passes through gear and is fixed through nut, ensures that leak hole is aligned with oil passage to make lubricating oil flow, gear tooth is embedded in rack when gear runs, and the blocking ball of the gear tooth of interlock moves to the oil passage under extrusion, and lubricating oil seeps out through the gap and lubricates the interlock part, and the oil passage is set up in the gear tooth of selected part and is equipped with the blocking ball, which can not only guarantee the lubricating effect but also maintain the strength of gear, the design utilizes gear rotation to automatically release lubricating oil, which not only reduces friction loss but also avoids lubricating oil overflow and waste, and the operator only needs to supplement the oil storage tank regularly, which solves the technical problem that adding lubricating oil to the interlock part of gear and rack will flow to the outside of gear and rack, thereby causing waste. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural schematic view of the utility model;

[0013] Figure 2 It is a sectional view of part of the utility model;

[0014] Figure 3 It is a partial sectional view of the gear of the utility model;

[0015] Figure 4 It is the utility model Figure 2 A enlarged view of the place;

[0016] Figure 5 It is the utility model Figure 3 B enlarged view of the place.

[0017] In the drawing: 1, gear; 2, rack; 3, oil storage tank; 4, oil storage cavity; 5, oil passage; 6, spring; 7, blocking ball; 8, block; 9, connecting rod; 10, motor; 11, sliding seat; 12, slide rail; 13, base. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be described clearly and completely below in combination with the drawings of the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are used to explain the utility model, and cannot be understood as limiting the utility model.

[0019] The embodiments of the utility model will be described below according to the overall structure of the utility model.

[0020] An open gear and rack transmission structure, such as Figures 1-5As shown, including gear 1, gear 1 side movable connection with rack 2, gear 1 and rack 2 meshing, gear 1 top fixedly connected with oil tank 3, oil tank 3 inside opening has oil storage cavity 4, oil storage cavity 4 stores lubricating oil;

[0021] Further, the gear 1 inside opening has an oil passage 5, the gear 1 part of the tooth two sides movable connection has the plugging ball 7, and each group of plugging ball 7 is located inside the oil passage 5, and the spring 6 is installed between every two groups of plugging ball 7, and the elastic connection between every two groups of plugging ball 7;

[0022] Wherein the gear 1 rotates, and the gear tooth engaged with the rack 2, will extrude the plugging ball 7, make the plugging ball 7 move to the inside of the oil passage 5, and the plugging ball 7 between the gear tooth two sides is provided with oil spring 6, therefore a group of plugging ball 7 is extruded to move to the inside of the oil passage 5, will extrude another group of plugging ball 7 at the same time, at this time the lubricating oil in the oil passage 5 will flow out from the gap between the plugging ball 7 and the gear tooth, thereby lubricating the meshing part of the gear 1 and the rack 2, wherein several groups of gear teeth can be selected from the gear teeth of the outer ring of the gear 1, and the oil passage 5 is opened in the inside, and the plugging ball 7 is installed, which avoids opening too many which may reduce the strength of the gear 1;

[0023] In the example, the oil tank 3 bottom movable connection has the resistance block 8, the resistance block 8 bottom fixedly connected with the connecting rod 9, the connecting rod 9 penetrates the gear 1, and the outer wall of the connecting rod 9 bottom is provided with external thread, the gear 1 is communicated with the oil storage cavity 4 through the oil passage 5, the oil tank 3 top is provided with oil inlet, wherein the connecting rod 9 can be fixed after penetrating the gear 1, so that the oil tank 3 is fixed on the top of the gear 1, and at this time the oil leakage hole of the bottom of the oil tank 3 is inserted into the oil passage 5 of the gear 1, so that the lubricating oil in the oil tank 3 can flow into the oil passage 5.

[0024] In the example, the gear 1 top is provided with motor 10, the motor 10 output is fixedly connected with the gear 1 through the rotating shaft, the rack 2 bottom is fixedly connected with the base 13, the base 13 top is fixedly connected with two groups of slide rails 12, the rotating shaft outside of the motor 10 output is rotatably connected with the sliding seat 11, the sliding seat 11 is slidably connected with the slide rail 12, wherein the motor 10 on the top of the gear 1 will drive the gear 1 to rotate after starting, because the gear 1 and the rack 2 are in meshing state, and the rack 2 is fixed on the base 13, so the gear 1 rotates will drive the sliding seat 11 to slide on the slide rail 12, thereby realizing the transmission effect between the gear 1 and the rack 2;

[0025] The utility model discloses a working principle is: when using, first gear 1 and rack 2 interlock each other, and the motor 10 at the top of gear 1 will drive gear 1 to rotate after starting, because gear 1 and rack 2 are in the interlocking state, and rack 2 is fixed on base 13, thus gear 1 rotates and drives sliding seat 11 to slide on slide rail 12, thereby realize the transmission effect between gear 1 and rack 2 each other,

[0026] Gear 1 top sets up the oil storage tank 3, simultaneously the connecting rod 9 at the bottom of storage tank 3 will pass through gear 1, and the outer wall of connecting rod 9 bottom is provided with external thread, thus after connecting rod 9 passes through gear 1, can use the nut and fix connecting rod 9, thereby make storage tank 3 fixed at the top of gear 1, and the oil leakage hole at the bottom of storage tank 3 at this time will be inserted into the oil passage 5 of gear 1, make the lubricating oil in storage tank 3 can flow into oil passage 5,

[0027] And gear 1 rotates, the gear teeth of gear 1 will be inserted into the inside of rack 2, wherein the both sides of some gear teeth are equipped with the blocking ball 7, at this time, the gear teeth that engage with rack 2, will extrude blocking ball 7, make blocking ball 7 move to the inside of oil passage 5, and the oil spring 6 is arranged between the both sides of gear teeth, thus a group of blocking ball 7 when being extruded and moving to the inside of oil passage 5, will extrude another group of blocking ball 7 simultaneously.

[0028] The lubricating oil in oil passage 5 will flow out from the gap between blocking ball 7 and gear teeth at this time, thereby lubricating the interlocking place of gear 1 and rack 2, wherein can select several groups of gear teeth from the gear teeth of the outer ring of gear 1, set up oil passage 5 in its inside, and install blocking ball 7, avoid that setting up too many can reduce the strength of gear 1;

[0029] And every time gear 1 rotates, the interlocking place will automatically leak lubricating oil, both reduce the friction between gear 1 and rack 2, and reduce the waste of lubricating oil, and the operator can only add lubricating oil to storage tank 3 regularly;

[0030] Through the above mechanism, the technical problem that adding lubricating oil to the interlocking place of gear and rack regularly can flow to the outside of gear and rack and cause waste can be solved.

[0031] Although the embodiments of the utility model have been shown and described, the specific embodiments are only the explanation of the utility model, and are not the limitation of the utility model, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable way, and the person skilled in the art can make the modification, replacement and change of the embodiment without creative contribution after reading the specification without departing from the principles and the purpose of the utility model, but as long as in the claim range of the utility model, it is protected by the patent law.

Claims

1. An open gear and rack transmission structure comprising a gear (1), characterized in that: The gear (1) is movably connected with a rack (2) on one side, the gear (1) is fixedly connected with an oil storage tank (3) on the top, the oil storage tank (3) is internally provided with an oil storage cavity (4), the gear (1) is internally provided with an oil passage (5), the gear (1) is movably connected with a blocking ball (7) on both sides of part of the teeth, and each group of blocking balls (7) is located in the oil passage (5), and a spring (6) is installed between every two groups of blocking balls (7), and the blocking balls (7) are elastically connected.

2. The open gear rack transmission structure according to claim 1, characterized in that: The oil storage tank (3) is movably connected with a blocking block (8) at the bottom, and the blocking block (8) is fixedly connected with a connecting rod (9) at the bottom.

3. The open gear rack transmission structure according to claim 2, characterized in that: The connecting rod (9) penetrates the gear (1), and an external thread is formed in the bottom outer wall of the connecting rod (9).

4. The open gear rack drive of claim 1, wherein: The gear (1) is provided with a motor (10) on the top, and the output end of the motor (10) is fixedly connected with the gear (1) through a rotating shaft.

5. The open gear rack drive of claim 1, wherein: The bottom of the rack (2) is fixedly connected with a base (13), and the top of the base (13) is fixedly connected with two groups of sliding rails (12).

6. The open gear rack drive of claim 4, wherein: The rotating shaft of the output end of the motor (10) is rotatably connected with a sliding seat (11) outside, and the sliding seat (11) is slidably connected with the sliding rails (12).

7. The open gear rack drive of claim 1, wherein: The gear (1) is connected with the oil storage cavity (4) through the oil passage (5), and the oil storage tank (3) is provided with an oil inlet on the top.

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