Cantilever elevator

Abstract

The embodiment of the utility model discloses a cantilever elevator which comprises stand columns, the stand columns are vertically installed on a bottom frame, the tops of the two stand columns are connected with a top frame, a plurality of connecting rods are installed between the two stand columns, guide rails are arranged at the front ends of the stand columns, sliding blocks are installed on the two sides of a car frame, and the top of the car frame is connected with one ends of two synchronous belts. The two synchronous belts are both wound on the synchronous belt wheels, the other ends of the synchronous belts are connected with the top of the balance weight component, the centers of the two synchronous belt wheels are installed on the driving shaft, the two sides of the driving shaft are installed on the bearings, one end of the driving shaft is connected with the output end of the motor, the motor and the bearings are both installed on the top of the top frame, and the two sides of the balance weight component are each provided with two guide wheels. According to the elevator, chain transmission is omitted, product pollution is avoided, and meanwhile, the safety is improved through the design of a speed limiter.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, in particular to a cantilever hoist. Background Art

[0002] Among production equipment, lifting equipment is widely used. For example, elevators can realize docking and transportation between high and low floors. Pallet elevators can be used to lift food, beverages and dairy products. For example, the cantilever pallet elevator disclosed in application number 2017207663052 is used to lift canned milk powder and other products. However, the chain elevator needs to be greased, which can easily contaminate the product and is very noisy. In addition, when the elevator is raised or lowered, if the chain suddenly breaks, it will put the workers below in a dangerous environment. Utility Model Content

[0003] The utility model provides a cantilever hoist, which solves the defect of easily contaminating products.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model discloses a cantilever hoist, comprising two columns, the two columns are vertically mounted on a base frame, the tops of the two columns are connected to a top frame, a plurality of connecting rods are installed between the two columns, guide rails are provided at the front ends of the columns, sliders are installed on both sides of a car frame, the sliders are slidably connected to the guide rails, the top of the car frame is connected to one end of two synchronous belts, the two synchronous belts are both wound around synchronous belt pulleys, the other ends of the synchronous belts are connected to the top of a counterweight component, the centers of the two synchronous belt pulleys are installed on a driving shaft, both sides of the driving shaft are installed on bearings, one end of the driving shaft is connected to the output end of a motor, the motor and the bearings are both installed on the top of the top frame, two guide wheels are provided on both sides of the counterweight component, angle irons are provided on the inner sides of the columns, the guide wheels are rollingly connected to the angle irons, and two legs are provided at the lower end of the car frame, and roller conveyors are installed on the legs.

[0006] Preferably, a guide rail 1 is provided in the middle of the front end of the connecting rod, and the guide rail 1 is connected to the connecting rod and the base frame through a guide rail fixing bracket, and two synchronous belts are symmetrically arranged on both sides of the guide rail 1.

[0007] Preferably, the car frame includes two vertical square tubes, and a plurality of horizontal square tubes are installed between the two vertical square tubes.

[0008] Preferably, three horizontal square tubes are provided, one horizontal square tube is installed on the top and bottom of the two vertical square tubes, a reinforcing vertical tube is provided between the two upper horizontal square tubes, two fixing plates are installed on the top horizontal square tube, two rib plates are provided between the fixing plate one and the top horizontal square tube, two vertical screws are installed on the fixing plate one, shaft sleeves are installed on the outside of the screws, a chain break detection plate is installed at the bottom of the two shaft sleeves, a spring is provided between the chain break detection plate and the top of the shaft sleeve, a sensor one is installed in the middle of the chain break detection plate, a sensing plate is provided at the upper end of the sensor one, and the sensing plate is installed in the middle of the rear side of the fixing plate one.

[0009] Preferably, a synchronous belt shaft is installed at the upper ends of the two screw rods, the synchronous belt shaft is connected to the end of the synchronous belt, and two synchronous belt clamping blocks are arranged on the outer side of the end of the synchronous belt.

[0010] Preferably, a safety clamp bracket is installed in the middle of the horizontal square tube located at the bottom, and the safety clamp is installed on the safety clamp bracket. A slide groove is provided in the middle of the rear end of the safety clamp, and the front end of the guide rail is located in the slide groove. A cover plate is provided on one side of the rear end of the safety clamp, and a roller is installed at the front end of the cover plate. A lifting plate is installed at the rear end of the cover plate, and a safety clamp swing arm is installed on the top of the lifting plate. The safety clamp swing arm is connected to the safety clamp linkage rod, and the other end of the safety clamp linkage rod is connected to another safety clamp swing arm, and the other safety clamp swing arm is connected to the tensioning assembly, and the tensioning assembly is connected to both ends of the tensioning rope, and the tensioning rope is connected to two speed limiters, and the two speed limiters are respectively installed on the top frame and the bottom frame.

[0011] Preferably, an L-shaped bracket is installed on the horizontal square tube in the middle, a torsion spring bracket is installed on the L-shaped bracket, the safety clamp linkage rod passes through the torsion spring bracket, and a torsion spring is installed on the torsion spring bracket and the safety clamp linkage rod.

[0012] Preferably, an aluminum profile is installed on one side of the connecting rod, a travel switch bracket and several photoelectric brackets are installed on the aluminum profile, a proximity switch is installed on the photoelectric bracket, a travel switch is installed on the travel switch bracket, and a sensor sheet is provided at the position corresponding to the proximity switch, and the sensor sheet is vertically installed on two horizontal square tubes.

[0013] Preferably, buffers are provided at the upper and lower ends of the vertical square tube, the buffer at the upper end is installed on the column through a buffer bracket, and a plurality of protective nets are provided at the rear ends of the two columns.

[0014] Preferably, the counterweight component includes a counterweight frame, in which a plurality of counterweight blocks are installed, guide wheel mounting frames are installed at both ends of the top and bottom of the counterweight frame, the guide wheel is installed on the guide wheel mounting frames, a groove is provided in the middle of the guide wheel, and the angle steel is stuck in the groove.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model utilizes the synchronous belt for lifting, eliminates the chain, does not need to use lubricating oil, avoids polluting the product, and improves safety by designing a speed limiter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of an embodiment of the utility model.

[0018] Figure 2 It is a partial schematic diagram of an embodiment of the utility model.

[0019] Figure 3 It is a partial schematic diagram of an embodiment of the utility model.

[0020] Figure 4 It is a partial schematic diagram of an embodiment of the utility model.

[0021] Figure 5 It is a partial schematic diagram of an embodiment of the utility model.

[0022] Figure 6 It is a partial schematic diagram of an embodiment of the utility model.

[0023] Figure 7 It is a partial schematic diagram of an embodiment of the utility model.

[0024] Figure 8 It is a partial schematic diagram of an embodiment of the utility model.

[0025] Fig. 9 It is a schematic diagram of a safety clamp according to an embodiment of the utility model. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] As shown in the figure, the utility model discloses a cantilever hoist, including two columns 1, the two columns 1 are vertically installed on the bottom frame 2, the tops of the two columns 1 are connected to the top frame 3, a plurality of connecting rods 4 are installed between the two columns 1, the front ends of the columns 1 are provided with guide rails 5, both sides of the car frame 6 are provided with sliders, the sliders are slidably connected to the guide rails 5, the top of the car frame is connected to one end of two synchronous belts 7, the two synchronous belts 7 are wound on the synchronous belt pulley 8, and the other end of the synchronous belt 8 is connected to the counterweight part The top of the frame 3 is connected to the top of the weight component 9, the centers of the two synchronous pulleys 8 are installed on the driving shaft 10, the two sides of the driving shaft 10 are installed on the bearings 11, one end of the driving shaft 10 is connected to the output end of the motor 12, the motor 12 and the bearings 11 are installed on the top of the top frame 3, two guide wheels 13 are arranged on both sides of the counterweight component 9, the inner side of the column 1 is provided with an angle iron 14, the guide wheel 13 is connected with the angle iron 14 in a rolling manner, and the lower end of the car frame 6 is provided with two legs 15, and the roller conveyor 16 is installed on the legs 15. The utility model uses the motor 12 to drive the driving shaft 10 to rotate, the driving shaft 10 drives the two synchronous pulleys 8 to rotate, the two synchronous pulleys 8 drive the synchronous belt 7 to move, the synchronous belt 7 drives the counterweight component 9 and the car frame 6 to move, the car frame 6 drives the legs 15 to move up and down, the legs 15 drive the roller conveyor 16 to move up and down, and the product A is located on the roller conveyor 16, so as to complete the lifting of the product A. The utility model utilizes a synchronous belt for lifting, eliminates a chain, does not need to use lubricating oil, and avoids contamination of product A.

[0028] In one embodiment of the utility model, a guide rail 17 is provided at the middle of the front end of the connecting rod 4, and the guide rail 17 is connected to the connecting rod 4 and the base frame 2 through a guide rail fixing bracket 18, and two synchronous belts are symmetrically arranged on both sides of the guide rail 17. The guide rail 17 plays a guiding role.

[0029] In an embodiment of the present invention, the car frame 6 includes two vertical square tubes 19 , and a plurality of horizontal square tubes 20 are installed between the two vertical square tubes 19 .

[0030] In one embodiment of the utility model, three horizontal square tubes 20 are provided, one horizontal square tube is installed on the top and bottom of two vertical square tubes 19, a reinforcing vertical tube 21 is provided between the two upper horizontal square tubes, two fixing plates 22 are installed on the top horizontal square tube, two rib plates 23 are provided between the fixing plate 22 and the top horizontal square tube, two vertical screws 24 are installed on the fixing plate 22, shaft sleeves 25 are installed on the outside of the screws 24, a chain break detection plate 26 is installed at the bottom of the two shaft sleeves 25, a spring 27 is provided between the chain break detection plate 26 and the top of the shaft sleeve, a sensor 28 is installed in the middle of the chain break detection plate 26, a sensing plate 29 is provided at the upper end of the sensor 28, and the sensing plate 29 is installed in the middle of the rear side of the fixing plate 22. During lifting, under normal conditions, the spring 27 is compressed, and the sensor 28 is released from the sensing plate 29. If the synchronous belt 7 breaks, the spring 27 is stretched, and the sensor 28 is separated from the sensing plate 29. The sensor 28 can send a signal to the control center to serve as a warning.

[0031] In one embodiment of the utility model, the upper ends of the two screw rods 24 are equipped with a synchronous belt shaft 30, which is connected to the end of the synchronous belt 7, and the outer side of the end of the synchronous belt is provided with two synchronous belt clamping blocks 31. The synchronous belt clamping blocks 31 tighten the end of the synchronous belt 7.

[0032] In one embodiment of the utility model, a safety clamp bracket 32 ​​is installed in the middle of the horizontal square tube at the bottom, a safety clamp 33 is installed on the safety clamp bracket 32, a slide groove 331 is provided in the middle of the rear end of the safety clamp 33, the front end of the guide rail 17 is located in the slide groove 331, a cover plate 34 is provided on one side of the rear end of the safety clamp 33, a roller 35 is installed at the front end of the cover plate 34, a lifting plate 36 is installed at the rear end of the cover plate 34, a safety clamp swing arm 37 is installed on the top of the lifting plate 36, the safety clamp swing arm 37 is connected to the safety clamp linkage rod 38, the other end of the safety clamp linkage rod 38 is connected to another safety clamp swing arm 37, the other safety clamp swing arm 37 is connected to the tensioning assembly 39, the tensioning assembly 39 is connected to both ends of the tensioning rope 40, the tensioning rope 40 is connected to two speed limiters 41, and the two speed limiters 41 are respectively installed on the top frame 2 and the bottom frame 3. The speed limiter 41 can be selected from OX-208, and of course other types of speed limiters can also be selected. When the synchronous belt 7 breaks, the safety clamp swing arm 37 will swing.

[0033] The tensioning assembly 39 can select an existing tensioning assembly, which includes two clamps 57, and clamp blocks 58 are fixed on the top and bottom of the two clamps 57. One side of the safety clamp swing arm is located between the two clamp blocks 58. One side of the safety clamp swing arm is fixed between the two clamps 57, and the clamp block 58 is connected to the tensioning rope 40.

[0034] In one embodiment of the utility model, the horizontal square tube 20 located in the middle is installed with an L-shaped bracket 42, a torsion spring bracket 43 is installed at the L-shaped bracket 42, the safety clamp linkage rod 38 passes through the torsion spring bracket 43, and a torsion spring 44 is installed at the torsion spring bracket and the safety clamp linkage rod.

[0035] In one embodiment of the utility model, an aluminum profile 45 is installed on one side of the connecting rod 4, a travel switch bracket 46 and a plurality of photoelectric brackets 47 are installed at the aluminum profile 45, a proximity switch 48 is installed at the photoelectric bracket 47, a travel switch 49 is installed at the travel switch bracket, and a sensing sheet 50 is provided at the position corresponding to the proximity switch, and the sensing sheet is vertically installed on two horizontal square tubes. The travel switch is used to record the travel, and the proximity switch is used to determine the position.

[0036] In one embodiment of the utility model, buffers 51 are provided at the upper and lower ends of the vertical square tube. The buffer at the upper end is installed on the column 1 through a buffer bracket 52. A plurality of protective nets 53 are provided at the rear ends of the two columns 1.

[0037] In one embodiment of the utility model, the counterweight component 9 includes a counterweight frame 54, in which a plurality of counterweight blocks 55 are installed, guide wheel mounting frames 56 are installed at both ends of the top and bottom of the counterweight frame 54, and the guide wheel 13 is installed on the guide wheel mounting frame 56. A groove is provided in the middle of the guide wheel 13, and an angle steel is stuck in the groove.

[0038] The above contents are merely examples and explanations of the structure of the present utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the present utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the present utility model.

Claims

1. Cantilever hoist, characterized by: It includes 2 columns, which are vertically installed on the base frame. The tops of the 2 columns are connected to the top frame. Several connecting rods are installed between the 2 columns. Guide rails are provided at the front ends of the columns. Slide blocks are installed on both sides of the car frame. The slide blocks are slidably connected to the guide rails. The top of the car frame is connected to one end of 2 synchronous belts, and the 2 synchronous belts are wound around synchronous pulleys. The other end of the synchronous belt is connected to the top of the counterweight component. The centers of the 2 synchronous pulleys are installed on the drive shaft, and both sides of the drive shaft are installed on bearings. One end of the drive shaft is connected to the output end of the motor. The motor and the bearings are installed on the top of the top frame. Two guide wheels are provided on both sides of the counterweight component, and angle irons are provided on the inner sides of the columns. The guide wheels are rollingly connected to the angle irons. Two legs are provided at the lower end of the car frame, and roller conveyors are installed on the legs.

2. The cantilever lifting machine according to claim 1, characterized in that: A guide rail 1 is arranged in the middle of the front end of the connecting rod. The guide rail 1 is connected with the connecting rod and the base frame through a guide rail fixing bracket. Two synchronous belts are symmetrically arranged on both sides of the guide rail 1.

3. The cantilever lifting machine according to claim 2, characterized in that: The car frame includes two vertical square tubes, and a plurality of horizontal square tubes are installed between the two vertical square tubes.

4. The cantilever lifting machine according to claim 3, characterized in that: There are three horizontal square tubes, one horizontal square tube is installed on the top and bottom of the two vertical square tubes, a reinforcing vertical tube is provided between the two upper horizontal square tubes, two fixing plates are installed on the top horizontal square tube, two rib plates are provided between the fixing plate one and the top horizontal square tube, two vertical screws are installed on the fixing plate one, shaft sleeves are installed on the outside of the screws, a chain break detection plate is installed at the bottom of the two shaft sleeves, a spring is provided between the chain break detection plate and the top of the shaft sleeve, a sensor one is installed in the middle of the chain break detection plate, a sensing plate is provided at the upper end of the sensor one, and the sensing plate is installed in the middle of the rear side of the fixing plate one.

5. The cantilever lifting machine according to claim 4, characterized in that: A synchronous belt shaft is installed on the upper ends of the two screw rods, the synchronous belt shaft is connected to the end of the synchronous belt, and two synchronous belt clamping blocks are arranged on the outer side of the end of the synchronous belt.

6. The cantilever lifting machine according to claim 4, characterized in that: A safety clamp bracket is installed in the middle of the horizontal square tube at the bottom, and a safety clamp is installed on the safety clamp bracket. A slide groove is provided in the middle of the rear end of the safety clamp, and the front end of the guide rail is located in the slide groove. A cover plate is provided on one side of the rear end of the safety clamp, and a roller is installed at the front end of the cover plate. A lifting plate is installed at the rear end of the cover plate, and a safety clamp swing arm is installed on the top of the lifting plate. The safety clamp swing arm is connected with the safety clamp linkage rod, and the other end of the safety clamp linkage rod is connected with another safety clamp swing arm, and the other safety clamp swing arm is connected with a tensioning assembly, and the tensioning assembly is connected with both ends of a tensioning rope, and the tensioning rope is connected with two speed limiters, and the two speed limiters are respectively installed on the top frame and the bottom frame.

7. The cantilever lifting machine according to claim 6, characterized in that: An L-shaped bracket is installed on the horizontal square tube located in the middle, a torsion spring bracket is installed on the L-shaped bracket, a safety clamp linkage rod passes through the torsion spring bracket, and a torsion spring is installed on the torsion spring bracket and the safety clamp linkage rod.

8. The cantilever lifting machine according to claim 7, characterized in that: An aluminum profile is installed on one side of the connecting rod, a travel switch bracket and several photoelectric brackets are installed on the aluminum profile, a proximity switch is installed on the photoelectric bracket, a travel switch is installed on the travel switch bracket, and a sensor sheet is provided at the position corresponding to the proximity switch, and the sensor sheet is vertically installed on two horizontal square tubes.

9. The cantilever lifting machine according to claim 4, characterized in that: Buffers are provided at the upper and lower ends of the vertical square tube. The buffer at the upper end is installed on the column through a buffer bracket. A plurality of protective nets are provided at the rear ends of the two columns.

10. The cantilever lifting machine according to claim 8, characterized in that: The counterweight component includes a counterweight frame, in which a plurality of counterweight blocks are installed. Guide wheel mounting frames are installed at both ends of the top and bottom of the counterweight frame. The guide wheel is installed on the guide wheel mounting frame. A groove is provided in the middle of the guide wheel, and the angle steel is stuck in the groove.

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