A walking device for electric hoist

Abstract

The present invention relates to the technical field of lifting equipment, and discloses a walking device for an electric hoist, including a slide rail body, a fixing rod is provided at the bottom of the slide rail body, both ends of the fixing rod are fixedly equipped with a support mounting frame, and a driving assembly is fixedly equipped on the side of the outer wall of the support mounting frame away from the slide rail body. The inner wall shape of the inner teeth and the outer edge shape of the outer teeth are adapted to each other, so that the pulley assembly can be sleeved by the inner teeth and the outer teeth, and the inner teeth and the outer teeth are meshed with each other to achieve a driving connection between the driving assembly and the pulley assembly, so that the device does not need to rely on traditional conduction components to achieve power transmission, and at the same time, the driving assembly and the pulley assembly can be quickly installed and disassembled, and the driving assembly and the pulley assembly can be fixedly assembled or sleeved by bolts, so as to achieve a variety of options for connecting the driving assembly and the pulley assembly.

Description

Technical Field

[0001] The invention relates to the technical field of lifting equipment, in particular to a traveling device for an electric hoist. Background Art

[0002] Electric hoist is a special lifting equipment installed on overhead crane and gantry crane. Electric hoist has the characteristics of small size, light weight, simple operation and easy use. It is used in industrial and mining enterprises, warehouses, docks and other places.

[0003] The electric hoist has a compact structure. The motor axis is perpendicular to the drum axis. The electric hoist adopts a worm gear transmission device. Its disadvantages are: large length and width, bulky structure, low mechanical efficiency, difficult processing, etc. The hydraulic system is double-controlled, and the overflow regulating valve and magnetic contact pressure gauge can accurately control the pressure. The electrical control department adopts low voltage control to increase the safety of the control system.

[0004] The existing traveling device for electric hoists is generally composed of a driving motor, a reducer, a guide wheel, and a guide rail structure. The power is transmitted between the planetary reducer and the guide wheel through an external meshing gear. Due to the influence of the equipment's use environment, the external meshing gear may be affected by dust or untimely addition of lubricating oil, which increases the friction between the structures and causes damage to the transmission mechanism. On the other hand, after the external meshing gear has been used for a long time, the center axis of the external meshing gear will be offset. Therefore, a traveling device for an electric hoist is proposed. Summary of the invention

[0005] The present invention provides a traveling device for an electric hoist, which solves the problems raised by the above-mentioned background technology.

[0006] The present invention provides the following technical solution: a walking device for an electric hoist, comprising a fixed rod arranged at the bottom of a slide rail body, both ends of the fixed rod are fixedly equipped with a support mounting frame, the support mounting frame is fixedly equipped with a driving assembly on the side of the outer wall away from the slide rail body, the support mounting frame is rotatably connected to the inner wall of the side of the outer wall close to the slide rail body, and both ends of the support mounting frame are fixedly equipped with auxiliary scrapers.

[0007] As a preferred technical solution of the present invention: the support mounting frame includes a rectangular square tube body, the top and bottom ends of the rectangular square tube body are respectively provided with an inlay hole and a through hole, a side of the through hole away from the slide rail body is fixedly equipped with a bearing seat, and the inner wall of the bearing seat is inlaid with a bearing;

[0008] The pulley assembly is fixedly assembled with the support mounting frame through a bearing seat and a bearing.

[0009] As a preferred technical solution of the present invention: the pulley assembly includes a pulley body, a connecting tube body is fixedly assembled on the side of the pulley body close to the driving assembly, the end surface of the connecting tube body close to the driving assembly is provided with internal teeth, the end surface of the pulley body away from the driving assembly is provided with a groove, and the inner wall of the groove is provided with a through installation groove.

[0010] As a preferred technical solution of the present invention: the driving assembly includes a planetary reducer body, the inner cavity of the planetary reducer body is provided with a power output shaft, the end of the power output shaft and the connecting pipe body is provided with external teeth, and the end surface of the power output shaft close to the slide rail body is provided with a threaded hole;

[0011] The power output shaft is arranged on a side close to the slide rail body, and the inner wall of the threaded hole is provided with an internal thread;

[0012] The planetary reducer body is also provided with a driving motor for driving the planetary reducer body.

[0013] As a preferred technical solution of the present invention: the outer wall of the connecting tube body and the inner ring surface of the bearing are fixedly assembled.

[0014] As a preferred technical solution of the present invention: a protrusion is provided on the side of the auxiliary scraper close to the pulley assembly.

[0015] As a preferred technical solution of the present invention: at least one set of driving components and pulley components are connected to the power output shaft and the connecting pipe body through a spline.

[0016] As a preferred technical solution of the present invention: the driving assembly is a planetary reducer.

[0017] The present invention has the following beneficial effects:

[0018] 1. The traveling device for the electric hoist is adapted to the inner wall shape of the inner teeth and the outer edge shape of the outer teeth, so that the pulley assembly can be sleeved through the inner teeth and the outer teeth, and the inner teeth and the outer teeth are meshed with each other to achieve the driving connection between the driving assembly and the pulley assembly, so that the device does not need to rely on traditional conduction components to achieve power transmission, and at the same time, the driving assembly and the pulley assembly can be quickly installed and disassembled, and the driving assembly and the pulley assembly can be assembled or sleeved by bolts, so as to achieve a variety of options for connecting the driving assembly and the pulley assembly.

[0019] 2. The traveling device for the electric hoist is adapted to the inner wall shape of the inner teeth and the outer edge shape of the outer teeth, so that the pulley assembly can be sleeved by the inner teeth and the outer teeth, and the inner teeth and the outer teeth are engaged with each other. The inner teeth and the outer teeth are arranged on the inner wall of the inlay hole, and the teeth and the outer teeth are sealed through the bearing, thereby solving the problem of dust entering between the teeth and the outer teeth. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is another perspective schematic diagram of the present invention;

[0022] Figure 3 It is a schematic diagram of the fixing rod structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the driving assembly of the present invention;

[0024] Figure 5 It is a schematic diagram of the assembly of the drive assembly and the pulley assembly of the present invention;

[0025] Figure 6 It is a right view structural schematic diagram of the present invention;

[0026] Figure 7 It is a schematic diagram of the cross-sectional structure of the pulley assembly of the present invention;

[0027] Figure 8 It is a schematic diagram of the right side cross-sectional structure of the support mounting frame of the present invention;

[0028] Fig. 9 This is a schematic diagram of another bearing of the present invention.

[0029] In the figure: 1. Slide rail body; 2. Fixing rod; 3. Support mounting frame; 4. Auxiliary scraper; 5. Drive assembly; 6. Pulley assembly;

[0030] 301, rectangular square tube body; 302, inlay hole; 303, through hole; 304, bearing; 305, bearing seat;

[0031] 501, planetary reducer body; 502, power output shaft; 503, external gear; 504, threaded hole;

[0032] 601, pulley body; 602, connecting tube body; 603, internal teeth; 604, groove; 605, through-mounting groove. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-9 A walking device for an electric hoist includes a fixed rod 2 arranged at the bottom of a slide rail body 1. The bottom of the slide rail body 1 is provided with a fixed rod 2, and both ends of the fixed rod 2 are fixedly equipped with a support mounting frame 3. The support mounting frame 3 is fixedly equipped with a driving component 5 on the side of the outer wall away from the slide rail body 1. The inner wall of the support mounting frame 3 close to the outer wall of the slide rail body 1 is rotatably connected with a pulley component 6, and both ends of the support mounting frame 3 are fixedly equipped with auxiliary scrapers 4.

[0035] In one embodiment, the support mounting frame 3 includes a rectangular square tube body 301, and the top and bottom ends of the rectangular square tube body 301 are respectively provided with an inlay hole 302 and a through hole 303, and a bearing seat 305 is fixedly mounted on the side of the through hole 303 away from the slide rail body 1, and the inner wall of the bearing seat 305 is inlaid with a bearing 304;

[0036] The pulley assembly 6 is fixedly assembled with the support mounting frame 3 through the bearing seat 305 and the bearing 304 .

[0037] The fixing rod 2 is located on the inner wall of the through hole 303 . Both ends of the fixing rod 2 are threadedly connected with eight nuts. Two groups of nuts form a group. The four groups of nuts are respectively arranged on both sides of the two groups of support mounting frames 3 .

[0038] In the above structure, the pulley assembly 6 and the support mounting frame 3 are fixedly assembled by the bearing seat 305 and the bearing 304, so that the pulley assembly 6 is connected and rotated to the support mounting frame 3 through the bearing seat 305 and the bearing 304, and the through hole 303 is opened so that the fixing rod 2 can pass through the two groups of support mounting frames 3, and eight nuts are threadedly connected at both ends of the fixing rod 2, two groups of nuts form a group, and four groups of nuts are respectively arranged on both sides of the two groups of support mounting frames 3, and the friction between the two nuts is utilized to fix the two nuts, thereby realizing the fixed assembly of the support mounting frames 3.

[0039] In one embodiment, the driving assembly 5 includes a planetary reducer body 501, the inner cavity of the planetary reducer body 501 is provided with a power output shaft 502, the end of the power output shaft 502 and the connecting tube body 602 is provided with an external gear 503, and the end surface of the power output shaft 502 close to the slide rail body 1 is provided with a threaded hole 504;

[0040] The power output shaft 502 is arranged on one side close to the slide rail body 1, and the inner wall of the threaded hole 504 is provided with an internal thread;

[0041] The planetary reducer body 501 is also provided with a driving motor for driving the planetary reducer body 501 .

[0042] In the above structure, the planetary reducer body 501 and the bearing seat 305 are fixedly assembled or the planetary reducer body 501 and the supporting mounting frame 3 are fixedly assembled;

[0043] The planetary reducer body 501 and the support mounting frame 3 can be connected by threads or welding.

[0044] In one embodiment: the pulley assembly 6 includes a pulley body 601, a connecting tube body 602 is fixedly assembled on the side of the pulley body 601 close to the driving assembly 5, an internal gear 603 is provided on the end face of the connecting tube body 602 close to the driving assembly 5, a groove 604 is provided on the end face of the pulley body 601 away from the driving assembly 5, and a through installation groove 605 is provided on the inner wall of the groove 604.

[0045] In one embodiment: a protrusion is provided on the outer edge of one side of the pulley body 601 close to the driving assembly 5 , and the protrusion is located between the rail body 1 and the supporting mounting frame 3 , and the inner wall shape of the inner tooth 603 is adapted to the outer edge shape of the outer tooth 503 .

[0046] In the above structure, the inner wall shape of the inner gear 603 and the outer edge shape of the outer gear 503 are adapted to each other, so that the pulley assembly 6 can be sleeved with the inner gear 603 and the outer gear 503, and the inner gear 603 and the outer gear 503 are meshed with each other to realize the driving connection between the driving assembly 5 and the pulley assembly 6;

[0047] In one embodiment: by providing a groove 604 and a through-mounting groove 605, the inner teeth 603 and the outer teeth 503 can be fixedly assembled by setting bolts in the inner cavity of the through-mounting groove 605 to achieve the pulley assembly 6 and the drive assembly 5;

[0048] In one embodiment: a protrusion is set on the outer edge of one side of the pulley body 601 close to the driving assembly 5, and the protrusion is located between the slide rail body 1 and the support mounting frame 3, so that when the pulley assembly 6 and the driving assembly 5 are sleeved together through the internal teeth 603 and the internal teeth 603, the slide rail body 1 is used to block the protrusion, so that the pulley assembly 6 is limited by the protrusion, thereby preventing the pulley assembly 6 and the driving assembly 5 from separating.

[0049] In one embodiment, the outer wall of the connecting tube 602 and the inner annular surface of the bearing 304 are fixedly assembled.

[0050] In the above structure, the connection between the pulley assembly 6 and the supporting mounting frame 3 is achieved by fixing the connecting tube body 602 and the inner ring of the bearing 304, and fixing the outer ring of the bearing 304 and the inner wall of the bearing seat 305. The bearing 304 is used to reduce the friction of the pulley assembly 6 during rotation.

[0051] In one embodiment, the bearing 304 may be used as Fig. 9 The double row full complement column bearing shown;

[0052] In one embodiment: a raised plate is provided on one side of the auxiliary scraper 4 close to the pulley assembly 6, the raised plate and the pulley assembly 6 are located in the same plane, the bottom outer edge of the raised plate and the top of the slide rail body 1 are spaced apart by X, and X satisfies 10 mm>X>2 mm, and a rubber column is fixedly mounted on the side of the raised plate away from the pulley assembly 6.

[0053] In the above structure, a raised plate is provided on the side of the auxiliary scraper 4 close to the pulley assembly 6, and the raised plate and the pulley assembly 6 are located in the same plane. The bottom outer edge of the raised plate and the top of the slide rail body 1 are spaced X, and X satisfies 10 mm>X>2 mm. When the driving assembly 5 drives the supporting mounting frame 3 and the auxiliary scraper 4 to move through the pulley assembly 6, the raised plate can scrape off the dust on the top of the slide rail body 1, thereby avoiding the accumulation of dust on the top of the slide rail body 1, which causes the problem of a gap between the pulley assembly 6 and the slide rail body 1. A rubber column is fixedly installed on the side of the raised plate away from the pulley assembly 6, so that when the driving assembly 5 drives the supporting mounting frame 3 and the auxiliary scraper 4 to move through the pulley assembly 6, the supporting mounting frame 3 can be buffered by the rubber column, thereby avoiding the problem of collision between the supporting mounting frames 3 and the supporting structures at both ends of the slide rail body 1.

[0054] In one embodiment, at least one set of driving assembly 5 and pulley assembly 6 is connected to the power output shaft 502 and the connecting pipe body 602 via a spline.

[0055] In one embodiment, the driving assembly 5 is a planetary reducer.

[0056] Working principle: the pulley assembly 6 and the support mounting frame 3 are fixedly assembled through the bearing seat 305 and the bearing 304, so that the pulley assembly 6 is connected and rotated with the support mounting frame 3 through the bearing seat 305 and the bearing 304, and the fixing rod 2 can penetrate the two sets of support mounting frames 3 by opening the through hole 303, thereby realizing the fixed assembly of the support mounting frame 3;

[0057] By matching the inner wall shape of the inner gear 603 with the outer edge shape of the outer gear 503, the pulley assembly 6 can be sleeved with the inner gear 603 and the outer gear 503, and the inner gear 603 and the outer gear 503 are meshed with each other to realize the driving connection between the driving assembly 5 and the pulley assembly 6.

[0058] A raised plate is provided on the side of the auxiliary scraper 4 close to the pulley assembly 6, and the raised plate and the pulley assembly 6 are located in the same plane. The distance between the bottom outer edge of the raised plate and the top of the slide rail body 1 is X, and X satisfies 10 mm>X>2 mm. When the driving assembly 5 drives the supporting mounting frame 3 and the auxiliary scraper 4 to move through the pulley assembly 6, the raised plate can scrape off the dust on the top of the slide rail body 1, thereby avoiding the accumulation of dust on the top of the slide rail body 1, which causes the problem of a gap between the pulley assembly 6 and the slide rail body 1. A rubber column is fixedly installed on the side of the raised plate away from the pulley assembly 6, so that when the driving assembly 5 drives the supporting mounting frame 3 and the auxiliary scraper 4 to move through the pulley assembly 6, the supporting mounting frame 3 can be buffered by the rubber column, thereby avoiding the problem of collision between the supporting mounting frames 3 and the supporting structures at both ends of the slide rail body 1.

[0059] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A traveling device for an electric hoist, comprising a fixing rod (2) arranged at the bottom of a slide rail body (1), characterized in that: Both ends of the fixed rod (2) are fixedly equipped with a support mounting frame (3); a driving assembly (5) is fixedly equipped on the side of the outer wall of the support mounting frame (3) away from the slide rail body (1); a pulley assembly (6) is rotatably connected to the inner wall of the side of the outer wall of the support mounting frame (3) close to the slide rail body (1); and auxiliary scrapers (4) are fixedly equipped on both ends of the support mounting frame (3); The support mounting frame (3) comprises a rectangular square tube body (301), the top and bottom ends of the rectangular square tube body (301) are respectively provided with an inlay hole (302) and a through hole (303), a bearing seat (305) is fixedly mounted on the side of the through hole (303) away from the slide rail body (1), and the inner wall of the bearing seat (305) is inlaid with a bearing (304); The pulley assembly (6) is fixedly assembled with the support mounting frame (3) via a bearing seat (305) and a bearing (304); The driving assembly (5) comprises a planetary reducer body (501), the inner cavity of the planetary reducer body (501) is provided with a power output shaft (502), and the end where the power output shaft (502) and the connecting pipe body (602) are connected is provided with external gears (503); The pulley assembly (6) comprises a pulley body (601), a connecting tube body (602) is fixedly mounted on a side of the pulley body (601) close to the driving assembly (5), an end surface of the connecting tube body (602) close to the driving assembly (5) is provided with an internal toothing (603), and an end surface of the pulley body (601) away from the driving assembly (5) is provided with a groove (604), and an inner wall of the groove (604) is provided with a penetrating installation groove (605); The auxiliary scraper (4) is provided with a raised plate on one side close to the pulley assembly (6).

2. The traveling device for an electric hoist according to claim 1, characterized in that: A threaded hole (504) is formed on an end surface of the power output shaft (502) close to the slide rail body (1); The power output shaft (502) is arranged on a side close to the slide rail body (1), and the inner wall of the threaded hole (504) is provided with an internal thread; The planetary reducer main body (501) is also provided with a driving motor for driving the planetary reducer main body (501).

3. The traveling device for an electric hoist according to claim 1, characterized in that: The outer wall of the connecting tube body (602) and the inner annular surface of the bearing (304) are fixedly assembled.

4. The traveling device for an electric hoist according to claim 2, characterized in that: At least one set of driving components (5) and pulley components (6) are connected to the power output shaft (502) and the connecting pipe body (602) via splines.

5. The traveling device for an electric hoist according to claim 1, characterized in that: The driving assembly (5) is a planetary reducer.

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