Chain deviation preventing mechanism for elevator

Abstract

The utility model relates to the technical field of elevators, and discloses a chain deviation preventing mechanism for an elevator, which comprises a base, a support plate is mounted at the top end of the base, a traction component is mounted on the surface of the support plate, deviation preventing mechanisms are mounted on two sides of the support plate, and the deviation preventing mechanisms are mounted on the support plate. The anti-deviation mechanism comprises a telescopic assembly used for contracting, an adjusting assembly used for adjusting the width and a limiting assembly used for limiting, a plurality of sets of connecting plates are connected to one end of the supporting plate, and the telescopic assembly is fixedly installed on the supporting plate through the connecting plates. According to the chain deviation preventing mechanism for the elevator, the chain body is limited by arranging the adjusting assembly, so that adjustment can be conducted according to the chain bodies of different models and sizes, deviation prevention can be conducted on the chain bodies of more models and sizes, the device is more stable during working, and the service life of the device is prolonged. And the practicability of the device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, and in particular to a mechanism for preventing a chain from running off track for an elevator. Background Art

[0002] Hoists are large-scale mechanical equipment that transports by changing potential energy, such as mine hoists, dam hoists, etc. In a broad sense, elevators, overhead cranes, winches, stabilizers, cranes, hoists, etc. can all be called hoists. When a general hoist is in operation, it uses a traction mechanism in the form of a chain and sprocket for traction. When the traction mechanism in the form of a chain and sprocket runs too fast, it is easy to cause the sprocket and chain to deviate, thereby affecting the operation of the hoist. At this time, a mechanism to prevent the chain from running off is needed.

[0003] The existing patent publication number CN218708919U discloses a mechanism for preventing chain deviation for a feed elevator, including a mounting frame, a sprocket is arranged inside the mounting frame, a chain body is arranged on the sprocket, a fixed sleeve is fixedly installed on the top of the inner wall of the mounting frame, an active cavity is arranged inside the fixed sleeve, a return spring is fixedly installed inside the active cavity, a movable rod is fixedly installed at one end of the return spring, a limiting sleeve is fixedly installed at one end of the movable rod, a limiting groove is arranged on the limiting sleeve, a connecting slide rod is fixedly installed on one side of the limiting sleeve, and a slide groove is arranged on the inner wall of the mounting frame. The utility model effectively limits the chain body by arranging the limiting sleeve and the limiting groove, which can effectively prevent the chain body from easily deviating and falling off when the sprocket rotates rapidly, or the chain body is deviated due to the inclusion of foreign matter when the chain body cooperates with the sprocket, thereby affecting the lifting work of the elevator.

[0004] The above scheme has the following problems during implementation: the device is provided with a limit sleeve, a limit slot is opened in the limit sleeve, and then the chain is rotated in the limit slot to prevent the chain from deviating. However, there are many types of hoists, and different types of hoists use chains of different models and sizes. The limit slot size of the device is fixed and not easy to adjust, which limits the chain size that can be used by the device and greatly reduces the practicability of the device. For this reason, we provide a mechanism for preventing chain deviation for hoists to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a mechanism for preventing chain deviation for an elevator, so as to solve the problem that there are many types of elevators in the prior art, and different types of elevators use chains of different models and sizes. The size of the limit groove of the device is fixed and not easy to adjust, thereby limiting the chain size that the device can be used for, greatly reducing the practicality of the device.

[0006] The utility model provides the following technical solutions: a mechanism for preventing chain deviation for a hoist, comprising a base, a support plate installed on the top of the base, and a traction assembly installed on the surface of the support plate, anti-deviation mechanisms installed on both sides of the support plate, the anti-deviation mechanisms comprising a telescopic assembly for contraction, an adjustment assembly for adjusting the width and a limiting assembly for limiting, one end of the support plate is connected to a plurality of groups of connecting plates, the telescopic assembly is fixed to the support plate through the connecting plate, and the limiting assembly is installed on the side of the telescopic assembly close to the traction assembly through the adjustment assembly.

[0007] As a preferred embodiment of the above technical solution, the traction assembly includes a motor and sprocket 2, the output end of the motor passes through the support plate and is connected to sprocket 1, the sprocket 2 is installed on the lower side of the support plate, and the surfaces of sprocket 2 and sprocket 1 are covered with a chain body.

[0008] As a preferred embodiment of the above technical solution, the telescopic assembly includes a sleeve rod, which is fixedly connected to the connecting plate, a screw rod rotatably installed in the sleeve rod, and a movable rod is threadedly sleeved on the surface of the screw rod, the movable rod slides in the sleeve rod, and a handle is installed at one end of the screw rod.

[0009] As a preferred embodiment of the above technical solution, the adjustment component includes a movable plate, a movable groove is opened at one end of the movable plate, and screw rod 2 is rotatably installed in the movable groove, a fixed plate is slidably installed in the movable groove, and a threaded groove is opened at one end of the fixed plate, screw rod 2 is threadedly inserted in the threaded groove, and handle 2 is installed at one end of screw rod 2.

[0010] As a preferred embodiment of the above technical solution, the limit assembly includes a limit plate 1, a limit plate 2 and a disassembly assembly, and the ends of the limit plate 1 and the limit plate 2 that are close to each other are installed with several groups of support rods through the disassembly assembly, and a group of limit rollers is rotatably installed between every two groups of support rods.

[0011] As a preferred embodiment of the above technical solution, the disassembly assembly includes a fixed block and a limit slot, a slot is provided at one end of the fixed block, the support rod is inserted in the slot, a sliding groove is provided on the inner wall of the slot, and a spring is installed on the inner side of the sliding groove, a limit rod is slidably installed at the opening of the sliding groove, and the limit rod is inserted in the limit slot, and a pull rod is connected to the top end of the limit rod.

[0012] As a preferred embodiment of the above technical solution, the outer diameters of the support rod and the limiting rod are respectively matched with the inner diameters of the slot and the limiting groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model sets an adjustment component, so that the second limit plate drives the limit roller to fit with one side of the chain body first, and then the second handle is held and rotated, so that the second handle drives the second screw to rotate in the thread groove, and the thread rotation drives the movable plate to move along the outer wall of the fixed plate, so that the fixed plate moves in the movable groove, so that the movable plate can drive the limit plate one to move, until the limit plate one drives the limit roller to fit with the other side of the chain body, and the chain body is limited. In this way, the chain body can be adjusted according to different models and sizes, so as to prevent the deviation of chain bodies of more models and sizes, making the device more stable when working, and greatly increasing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a schematic diagram of the overall structure of a mechanism for preventing chain deviation in a hoist;

[0016] Figure 2 It is a schematic diagram of a side cross-sectional structure of a mechanism for preventing chain deviation in a hoist;

[0017] Figure 3 It is a schematic diagram of a top view cross-sectional structure of a mechanism for preventing chain deviation in a hoist;

[0018] Figure 4 The present invention is a cross-sectional view of a movable plate and a movable groove of a mechanism for preventing chain deviation in a hoist;

[0019] Figure 5 It is a cross-sectional view of a limit plate 1 and a limit plate 2 of a mechanism for preventing a chain from running off the track of a hoist;

[0020] Figure 6 for Figure 5 A is an enlarged schematic diagram.

[0021] In the figure: 1. base; 2. support plate; 21. connecting plate; 3. traction assembly; 31. motor; 32. sprocket one; 33. sprocket two; 34. chain body; 4. telescopic assembly; 41. sleeve rod; 42. screw rod one; 43. movable rod; 44. handle one; 5. adjustment assembly; 51. movable plate; 52. movable groove; 53. screw rod two; 54. fixed plate; 55. threaded groove; 56. handle two; 6. limit assembly; 61. limit plate one; 62. limit plate two; 63. support rod; 64. limit roller; 7. disassembly assembly; 71. fixed block; 72. slot; 73. slide groove; 74. spring; 75. limit rod; 76. limit groove; 77. pull rod. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] like Figure 1 and Figure 2 As shown, the utility model provides a technical solution: a mechanism for preventing chain deviation for a hoist, comprising a base 1, a support plate 2 is installed on the top of the base 1, and a traction assembly 3 is installed on the surface of the support plate 2, the traction assembly 3 comprises a motor 31 and a sprocket 33, the output end of the motor 31 passes through the support plate 2 and is connected to a sprocket 32, the motor 31 is installed on the upper side of an end of the support plate 2 away from the sprocket 32, the sprocket 33 is installed on the lower side of the support plate 2, and a chain body 34 is sleeved on the surfaces of the sprocket 33 and the sprocket 32. This structure makes it possible to realize traction work in the hoist, thereby moving objects.

[0024] As an implementation method in this embodiment, Figure 3 and Figure 4 As shown, both sides of the support plate 2 are equipped with anti-deviating mechanisms, which include a telescopic component 4 for contraction, an adjusting component 5 for adjusting the width, and a limiting component 6 for limiting. One end of the support plate 2 is connected with a plurality of connecting plates 21, and the telescopic component 4 is fixedly installed with the support plate 2 through the connecting plate 21. The limiting component 6 is installed on the side of the telescopic component 4 close to the traction component 3 through the adjusting component 5. The telescopic component 4 includes a sleeve rod 41, which is fixedly connected with the connecting plate 21. A screw rod 42 is rotatably installed in the sleeve rod 41, and a movable rod 43 is threadedly sleeved on the surface of the screw rod 42. The movable rod 43 slides in the sleeve rod 41. In order to make it more convenient to rotate the screw rod 42, a handle 44 is installed at one end of the screw rod 42. This structure makes it possible to rotate the screw rod 42 more conveniently. In order to drive the limiting assembly 6 to move closer to and away from the chain body 34, which makes it more convenient to disassemble and replace the chain body 34, the adjusting assembly 5 includes a movable plate 51, one end of the movable plate 51 is provided with a movable groove 52, and a screw rod 2 53 is rotatably installed in the movable groove 52, a fixed plate 54 is slidably installed in the movable groove 52, the movable rod 43 is fixedly connected to the fixed plate 54, and one end of the fixed plate 54 is provided with a threaded groove 55, and the screw rod 2 53 is threadedly inserted in the threaded groove 55. In order to make it more convenient to rotate the screw rod 2 53, a handle 2 56 is installed at one end of the screw rod 2 53. This structure makes it possible to adjust the width of the limiting assembly 6, so that chain bodies 34 of various models and sizes can be limited, which greatly increases the practicality of the device.

[0025] It should be noted that several groups of anti-drift mechanisms are provided, and anti-drift mechanisms are symmetrically provided on both sides of the sprocket 1 32 and the sprocket 2 33 , which has a better effect of preventing the chain body 34 from drifting.

[0026] Furthermore, the movable rod 43 is fixedly connected to the fixed plate 54, and the movable plate 51 is slidably mounted on the surface of the fixed plate 54, so a groove adapted to the movable rod 43 is opened on the outer wall of the movable plate 51 on one side close to the movable rod 43, so that when the movable plate 51 moves along the outer wall of the fixed plate 54, the movable rod 43 can be in the groove, so that the movement of the movable plate 51 will not be affected, and better adjustment can be achieved.

[0027] As an implementation method in this embodiment, Figure 5 and Figure 6 As shown, the limiting assembly 6 includes a limiting plate 1 61, a limiting plate 2 62 and a disassembly assembly 7. The limiting plate 1 61 and the limiting plate 2 62 are fixedly connected to the movable plate 51 and the fixed plate 54 respectively. The ends of the limiting plate 1 61 and the limiting plate 2 62 that are close to each other are installed with a plurality of groups of support rods 63 through the disassembly assembly 7. A group of limiting rollers 64 is rotatably installed between each two groups of support rods 63. This structure can limit the chain body 34, so as to better prevent the chain body 34 from deflecting and affecting the work. The disassembly assembly 7 includes a fixed block 71 and a limiting groove 76. The plurality of fixed blocks 71 are connected to the limiting plate 1 61 and the limiting plate 2 62 respectively. The fixed block 7 A slot 72 is provided at one end of 1, and the support rod 63 is inserted in the slot 72. A slide groove 73 is provided on the inner wall of the slot 72, and a spring 74 is installed on the inner side of the slide groove 73. A limit rod 75 is slidably installed at the opening of the slide groove 73, and the limit rod 75 is inserted in the limit groove 76. The limit groove 76 is provided at one end of the support rod 63. The outer diameters of the support rod 63 and the limit rod 75 are respectively adapted to the inner diameters of the slot 72 and the limit groove 76. A pull rod 77 is connected to the top of the limit rod 75, and the pull rod 77 passes through the outer wall of the fixing block 71 and extends to the outside. This structure makes it convenient to disassemble and install the limit roller 64, thereby making it easier to replace the limit roller 64.

[0028] It should be noted that the limiting roller 64 is fitted with the chain body 34 to prevent the chain body 34 from being limited, so that the chain body 34 can drive the limiting roller 64 to rotate when moving, thereby reducing the wear caused by limiting the chain body 34.

[0029] Working principle: To prevent the chain body 34 from deflecting during operation, just hold the handle 1 44 and turn it, so that the handle 1 44 drives the screw 1 42 to rotate, and through the rotation of the thread, drives the movable rod 43 to move laterally in the sleeve rod 41, until the movable rod 43 moves the limit plate 1 61 and the limit plate 2 62 to the two sides of the chain body 34 respectively through the movable plate 51 and the fixed plate 54. Because the fixed plate 54 is fixedly connected to the limit plate 2 62, it is necessary to first drive the limit plate 2 62 to drive the limit roller 64 to fit one side of the chain body 34. At this time, you can hold the handle 2 56 and turn it, so that the handle 2 56 drives the screw 2 53 to rotate in the thread groove 55, and then By rotating the thread, the movable plate 51 is driven to move along the outer wall of the fixed plate 54, so that the fixed plate 54 moves in the movable groove 52, so that the movable plate 51 can drive the limiting plate 1 61 to move, until the limiting plate 1 61 drives the limiting roller 64 to fit with the other side of the chain body 34, and the chain body 34 is limited, so that the chain body 34 of different models and sizes can be adjusted, and finally the motor 31 can be started to drive the sprocket 1 32 to rotate, and the chain body 34 is driven to rotate by the sprocket 1 32, and the chain body 34 also drives the sprocket 2 33 to rotate, so that the chain body 34 is not easy to deviate when rotating, which greatly increases the practicality of the device;

[0030] In addition, if the limiting roller 64 needs to be replaced due to wear and damage, it is only necessary to pull the pull rod 77 to drive the limiting rod 75 to move until the limiting rod 75 is pulled out of the limiting groove 76 and moves to the slide groove 73 to compress the spring 74. At this time, the support rod 63 can be pulled out of the slot 72, thereby realizing the disassembly and replacement of the limiting roller 64, which greatly increases the convenience of the device.

[0031] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A chain deviation prevention mechanism for a hoist, comprising a base (1), a support plate (2) being mounted on the top of the base (1), and a traction assembly (3) being mounted on the surface of the support plate (2), characterized in that: Anti-deviation mechanisms are installed on both sides of the support plate (2), and the anti-deviation mechanisms include a telescopic component (4) for contraction, an adjustment component (5) for adjusting the width, and a limit component (6) for limiting the position. One end of the support plate (2) is connected to a plurality of groups of connecting plates (21), the telescopic component (4) is fixedly mounted on the support plate (2) via the connecting plates (21), and the limit component (6) is installed on a side of the telescopic component (4) close to the traction component (3) via the adjustment component (5).

2. The chain deviation prevention mechanism for a hoist according to claim 1, characterized in that: The traction assembly (3) comprises a motor (31) and a second sprocket (33); the output end of the motor (31) passes through the support plate (2) and is connected to a first sprocket (32); the second sprocket (33) is mounted on the lower side of the support plate (2); and the surfaces of the second sprocket (33) and the first sprocket (32) are sleeved with a chain body (34).

3. The chain deviation prevention mechanism for a hoist according to claim 1, characterized in that: The telescopic assembly (4) comprises a sleeve rod (41), the sleeve rod (41) is fixedly connected to the connecting plate (21), a screw rod (42) is rotatably installed in the sleeve rod (41), and a movable rod (43) is threadedly sleeved on the surface of the screw rod (42), the movable rod (43) slides in the sleeve rod (41), and a handle (44) is installed at one end of the screw rod (42).

4. The chain deviation prevention mechanism for a hoist according to claim 1, characterized in that: The adjustment assembly (5) comprises a movable plate (51), one end of the movable plate (51) is provided with a movable groove (52), and a second screw rod (53) is rotatably installed in the movable groove (52), a fixed plate (54) is slidably installed in the movable groove (52), and one end of the fixed plate (54) is provided with a thread groove (55), the second screw rod (53) is threadedly inserted in the thread groove (55), and one end of the second screw rod (53) is provided with a handle (56).

5. The chain deviation prevention mechanism for a hoist according to claim 1, characterized in that: The limiting assembly (6) comprises a limiting plate 1 (61), a limiting plate 2 (62) and a disassembly assembly (7); the ends of the limiting plate 1 (61) and the limiting plate 2 (62) close to each other are both installed with a plurality of groups of support rods (63) through the disassembly assembly (7); and a group of limiting rollers (64) is rotatably installed between every two groups of the support rods (63).

6. The chain deviation prevention mechanism for a hoist according to claim 5, characterized in that: The disassembly assembly (7) comprises a fixed block (71) and a limiting groove (76), a slot (72) is provided at one end of the fixed block (71), the support rod (63) is inserted into the slot (72), a sliding groove (73) is provided on the inner wall of the slot (72), and a spring (74) is installed on the inner side of the sliding groove (73), a limiting rod (75) is slidably installed at the opening of the sliding groove (73), and the limiting rod (75) is inserted into the limiting groove (76), and the top end of the limiting rod (75) is connected to a pull rod (77).

7. The chain deviation prevention mechanism for a hoist according to claim 6, characterized in that: The outer diameters of the support rod (63) and the limiting rod (75) are respectively matched to the inner diameters of the slot (72) and the limiting groove (76).

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