A new mechanical gearbox structure

Abstract

The present invention discloses a novel mechanical gearbox structure, wherein a partition is provided in the middle of the gearbox, which divides the gearbox into two chambers, namely a first chamber and a second chamber, the partition has two surfaces, the surface facing the first chamber is surface A, and the surface facing the second chamber is surface B, and a through hole is opened in the middle of the partition; it also includes a transition sleeve, the transition sleeve includes a first annular member and a second annular member, which are respectively clamped in the first circular groove and the second circular groove, and the one side end surfaces of the first annular member and the second annular member are connected with a raised cylindrical clamping member, and the first annular member can be sleeved and matched with the second annular member; the first annular member, the second annular member and the annular clamping member are all penetrated by a plurality of groups of threaded holes, which are aligned with each other and are threadedly connected by long bolts, thereby greatly enhancing the ability to withstand external impact without changing the installation dimensions.

Description

Technical Field

[0001] The present invention relates to the technical field of gearboxes, and in particular to a novel mechanical gearbox structure. Background Art

[0002] In numerous fields, including logistics and warehousing, industrial manufacturing, and cargo handling, forklifts, as key material handling equipment, play a vital role in the smooth operation of production and operational processes through their efficient and stable operation. As a core component of the forklift's powertrain, the performance and reliability of the mechanical transmission directly determine the forklift's overall operating capacity and lifespan.

[0003] With the rapid development of modern industry, forklift usage scenarios are becoming increasingly diverse and complex. Forklifts frequently lift, lower, and transport cargo, as well as operate under diverse terrain and operating conditions. This requires mechanical transmissions to withstand a wide range of loads and varying torque demands. In the design and application of mechanical transmissions, the saddle, a key structural feature, is closely tied to the overall advancement of mechanical transmission technology. Early mechanical transmissions had relatively simple structures and limited functional requirements. The design of the saddle focused primarily on meeting basic connection and support requirements. Its shape and dimensions were often determined based on experience and simple mechanical calculations. It was typically cast in one piece from the same material as the transmission to ensure integrity and structural strength. However, with the rapid advancement of industrial technology, mechanical transmissions face increasingly complex operating conditions and higher performance requirements. The increasing power required for transmission significantly increases the loads on components such as gears and shafts within the transmission, indirectly increasing the forces acting on the saddle.

[0004] The typical thickness of the hole bottom slats will not damage them during normal forklift use. However, some users may use their forklifts as bulldozers, which can damage them if used beyond their intended use. Given the fixed installation dimensions, the slats' structure is limited, and their thickness cannot be increased. To adapt to the complex operating conditions and high reliability requirements of mechanical transmissions in modern industrial applications, slat design and manufacturing technology continues to evolve, evolving from traditional simple structures toward higher strength, multifunctionality, and high reliability. This has become a key research and innovation direction in the field of mechanical transmission technology. Summary of the Invention

[0005] In order to solve the technical problems existing in the background technology, the present invention proposes a new mechanical gearbox structure.

[0006] The present invention proposes a novel mechanical gearbox structure, wherein a partition is provided in the middle of the gearbox to separate the gearbox into two chambers, namely a first chamber and a second chamber. The partition has two surfaces, the surface facing the first chamber is surface A, and the surface facing the second chamber is surface B. A through hole is opened in the middle of the partition;

[0007] The invention also includes a transition sleeve, the transition sleeve including a first annular member and a second annular member, the A surface of the partition is provided with a first circular groove, the B surface of the partition is provided with a second circular groove, the inner diameters of the first circular groove and the second circular groove are equal and both are larger than the aperture of the through hole, the axes of the first circular groove, the second circular groove and the through hole are coincident, and the remaining portion of the partition located between the first circular groove and the second circular groove is an annular clamping member;

[0008] One end surface of each of the first and second annular members is connected to a protruding cylindrical clamping member, namely the first cylindrical clamping member and the second cylindrical clamping member. The inner ring of the first cylindrical clamping member coincides with the axis of the inner ring of the first annular member and has the same inner diameter as the inner ring of the second annular member. The inner ring of the second cylindrical clamping member coincides with the axis of the inner ring of the second annular member and has the same inner diameter as the inner ring of the second annular member. The thickness of the first cylindrical clamping member is equal to that of the annular clamping member.

[0009] The outer diameter of the first cylindrical clamping member is consistent with the outer diameter of the through hole, the inner diameter of the first cylindrical clamping member is consistent with the outer diameter of the second cylindrical clamping member, and the first annular member can be sleeved and matched with the second annular member;

[0010] The first annular member cooperates with the first circular groove, and the second annular member cooperates with the second circular groove. The first annular member, the second annular member and the annular clamping member are all provided with a plurality of groups of threaded holes that are aligned with each other and are threadedly connected by long bolts.

[0011] Preferably, the gearbox is made of HT250.

[0012] Preferably, the transition sleeve is made of steel.

[0013] Preferably, there are six groups of threaded holes on the first annular member, the second annular member and the annular clamping member, all distributed around the axis center, and the long bolts are hexagon socket bolts.

[0014] Preferably, the inner ring of the first cylindrical clamp is provided with a vertical strip clamping groove, and the outer ring of the second cylindrical clamp is provided with a strip clamping piece vertically, and the strip clamping groove cooperates with the strip clamping piece.

[0015] Preferably, the strip-shaped slots and strip-shaped clamps are provided in multiple groups, which are respectively distributed around the axis centers of the first cylindrical clamp and the second cylindrical clamp.

[0016] Preferably, the end surface of the second cylindrical clamping member away from the second annular member is flush with the end surface of the first annular member away from the first cylindrical clamping member.

[0017] In the present invention, a new mechanical transmission structure is proposed. When the first annular member is clamped in the first circular groove and the second annular member is clamped in the second circular groove, the second cylindrical clamp is sleeved in the first cylindrical clamp, and each threaded hole is penetrated and fixed by long bolts. The transition sleeve can greatly enhance the ability to withstand external impact without changing the installation dimensions.

[0018] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the mechanical gearbox of the present invention after the transition sleeve is installed;

[0020] Figure 2 This is a schematic diagram of the mechanical gearbox structure of the present invention;

[0021] Figure 3 It is a structural schematic diagram of the transition sleeve in the present invention;

[0022] Figure 4 Schematic diagram of the structure of the partition layer in the present invention;

[0023] Figure 5 is a top view of the first annular member in the present invention;

[0024] Figure 6 is a top view of the second annular member of the present invention;

[0025] Explanation of the numbers in the figure: 1. partition; 101. first chamber; 102. second chamber; 103. annular clamping part; 104. through hole; 2. first circular groove; 3. second circular groove; 4. first annular part; 401. first cylindrical clamping part; 402. strip clamping groove; 5. second annular part; 501. second cylindrical clamping part; 502. strip clamping part; 6. threaded hole; 7. long bolt. DETAILED DESCRIPTION

[0026] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention, and are not to be construed as limiting the present invention.

[0027] like Figures 1-6A novel mechanical gearbox structure is shown. A partition 1 is provided in the middle of the gearbox to separate the gearbox into two chambers, namely a first chamber 101 and a second chamber 102. The partition 1 has two surfaces: the surface facing the first chamber 101 is surface A, and the surface facing the second chamber 102 is surface B. A through hole 104 is opened in the middle of the partition 1.

[0028] The utility model further comprises a transition sleeve, the transition sleeve comprising a first annular member 4 and a second annular member 5, the A surface of the partition layer 1 is provided with a first circular groove 2, the B surface of the partition layer 1 is provided with a second circular groove 3, the inner diameters of the first circular groove 2 and the second circular groove 3 are equal and both are larger than the aperture of the through hole 104, the axes of the first circular groove 2, the second circular groove 3 and the through hole 104 are coincident, and the remaining portion of the partition layer 1 located between the first circular groove and the second circular groove 3 is an annular clamping member 103;

[0029] One end surface of each of the first annular member 4 and the second annular member 5 is connected to a protruding cylindrical clamping member, namely a first cylindrical clamping member 401 and a second cylindrical clamping member 501. The inner ring of the first cylindrical clamping member 401 coincides with the axis of the inner ring of the first annular member 4 and has the same inner diameter as the inner ring of the second annular member 5. The inner ring of the second cylindrical clamping member 501 coincides with the axis of the inner ring of the second annular member 5 and has the same inner diameter as the inner ring of the second annular member 5. The thickness of the first cylindrical clamping member 401 is equal to the thickness of the annular clamping member 103.

[0030] The outer diameter of the first cylindrical clamping member 401 is consistent with the outer diameter of the through hole 104, and the inner diameter of the first cylindrical clamping member 401 is consistent with the outer diameter of the second cylindrical clamping member 501. The first annular member 4 can be sleeved with the second annular member 5;

[0031] The first annular member 4 cooperates with the first circular groove 2, and the second annular member 5 cooperates with the second circular groove 3. The first annular member 4, the second annular member 5 and the annular clamping member 103 are all penetrated by multiple groups of threaded holes 6 that are aligned with each other and are threadedly connected by long bolts 7.

[0032] When the first annular member 4 is clamped in the first circular groove 3 and the second annular member 5 is clamped in the second circular groove 3, the second cylindrical clamp 501 is sleeved in the first cylindrical clamp 502, and each threaded hole 6 is penetrated and fixed by a long bolt 7. The transition sleeve can greatly enhance the ability to withstand external impact without changing the installation dimensions.

[0033] Preferably, the gearbox is made of HT250.

[0034] Preferably, the transition sleeve is made of steel.

[0035] Preferably, there are six groups of threaded holes 6 on the first annular member 4 , the second annular member 5 and the annular clamping member 103 , all distributed around the axis center, and the long bolts 7 are hexagon socket bolts.

[0036] Preferably, a vertical strip-shaped slot 402 is provided on the inner ring of the first cylindrical clamp 401 , and a strip-shaped clamp 502 is provided vertically on the outer ring of the second cylindrical clamp 501 , and the strip-shaped slot 402 cooperates with the strip-shaped clamp 502 .

[0037] Preferably, the strip-shaped slots 402 and the strip-shaped clamping members 502 are provided in multiple groups, which are respectively distributed around the axis centers of the first cylindrical clamping member 401 and the second cylindrical clamping member 501 .

[0038] The first cylindrical clamping member 401 and the second cylindrical clamping member 501 can achieve docking and fixation of the first annular member 4 and the second annular member 5 through the clamping of the strip clamping groove 501 and the strip clamping member 502, thereby enhancing the connection firmness between the first annular member and the second annular member and enhancing the firmness of the annular clamping member at the partition.

[0039] Preferably, the end surface of the second cylindrical clamping member 501 away from the second annular member 5 is flush with the end surface of the first annular member 4 away from the first cylindrical clamping member 401 to ensure that the installation dimensions are not changed and to avoid occupying the space of the first chamber 101.

[0040] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0042] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0043] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0044] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A novel mechanical gearbox structure, wherein a partition (1) is provided in the middle of the gearbox to separate the gearbox into two chambers, namely a first chamber (101) and a second chamber (102); the partition (1) has two surfaces, the surface facing the first chamber (101) is surface A, and the surface facing the second chamber (102) is surface B; a through hole (104) is opened in the middle of the partition (1); Its characteristics are: The invention also includes a transition sleeve, wherein the transition sleeve includes a first annular member (4) and a second annular member (5); a first circular groove (2) is provided on the A surface of the partition (1); a second circular groove (3) is provided on the B surface of the partition (1); the inner diameters of the first circular groove (2) and the second circular groove (3) are equal and both are larger than the aperture of the through hole (104); the axes of the first circular groove (2), the second circular groove (3) and the through hole (104) are coincident; and the remaining portion of the partition (1) located between the first circular groove and the second circular groove (3) is an annular clamping member (103); One end face of each of the first annular member (4) and the second annular member (5) is connected with a protruding cylindrical clamping member, namely a first cylindrical clamping member (401) and a second cylindrical clamping member (501). The inner ring of the first cylindrical clamping member (401) coincides with the axis of the inner ring of the first annular member (4) and has the same inner diameter as the inner ring of the second annular member (5). The inner ring of the second cylindrical clamping member (501) coincides with the axis of the inner ring of the second annular member (5) and has the same inner diameter as the inner ring of the second annular member (5). The thickness of the first cylindrical clamping member (401) is equal to the thickness of the annular clamping member (103). The outer diameter of the first cylindrical clamping member (401) is consistent with the outer diameter of the through hole (104), the inner diameter of the first cylindrical clamping member (401) is consistent with the outer diameter of the second cylindrical clamping member (501), and the first annular member (4) can be sleeved and matched with the second annular member (5); The first annular member (4) cooperates with the first circular groove (2), and the second annular member (5) cooperates with the second circular groove (3). The first annular member (4), the second annular member (5) and the annular clamping member (103) are all provided with a plurality of groups of threaded holes (6) that are aligned with each other and are threadedly connected by long bolts (7).

2. A novel mechanical gearbox structure according to claim 1, characterized in that: The gearbox is made of HT250.

3. A novel mechanical gearbox structure according to claim 1, characterized in that: The transition sleeve is made of steel.

4. A novel mechanical gearbox structure according to claim 3, characterized in that: There are six groups of threaded holes (6) on the first annular member (4), the second annular member (5) and the annular clamping member (103), all distributed around the axis center, and the long bolts (7) are hexagon socket bolts.

5. The novel mechanical transmission structure according to claim 3 is characterized in that: The inner ring of the first cylindrical clamping member (401) is provided with a vertical strip clamping groove (402), and the outer ring of the second cylindrical clamping member (501) is provided with a strip clamping member (502) vertically, and the strip clamping groove (402) is matched with the strip clamping member (502).

6. A novel mechanical transmission structure according to claim 5, characterized in that: The strip-shaped clamping slots (402) and the strip-shaped clamping pieces (502) are both provided in multiple groups, and are respectively distributed around the axis centers of the first cylindrical clamping piece (401) and the second cylindrical clamping piece (501).

7. A novel mechanical transmission structure according to claim 3, characterized in that: The end surface of the second cylindrical clamping member (501) away from the second annular member (5) is flush with the end surface of the first annular member (4) away from the first cylindrical clamping member (401).

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