Workbench for engineering machinery counterweight production

Abstract

The utility model discloses a workbench for engineering machinery counterweight production. The workbench comprises a main frame and a transmission device, a main shaft is mounted on the main frame, and a first rotating plate and a second rotating plate are rotationally arranged on the main shaft; the transmission device is installed on the main frame, the main frame comprises a pair of first arc-shaped racks, second arc-shaped racks are arranged on the first arc-shaped racks in a sliding mode, a transmission shaft is arranged above the second arc-shaped racks, a pair of first gears are fixed to the transmission shaft, and the first gears are meshed with the transmission shaft. A pair of first rotating shafts is arranged below the first arc-shaped rack, a pair of second gears is fixed to each first rotating shaft, the second gears are meshed with the first arc-shaped rack, two pairs of fixing bases are fixed to the main frame, and damping rings are installed in the fixing bases. By means of the relevant structural design, the counter weight iron can be turned over directly on the workbench, so that the machining treatment of a lower surface is carried out, and the working efficiency is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical counterweight technology, specifically relating to a workbench for producing counterweights for engineering machinery. Background Technology

[0002] Mechanical counterweights are heavy objects used in mechanical equipment to balance weight or provide stability. Their main function is to counteract the unbalanced forces generated during the operation of mechanical equipment by increasing or adjusting the weight, thus ensuring the stability and normal operation of the equipment. The most common type of mechanical counterweight is made of cast metal, such as solid or integral counterweight iron. After being pressed and formed, counterweight iron generally needs to be placed on a workbench for further processing, such as sandblasting, to improve surface mechanical properties and fatigue resistance.

[0003] Since each side of the counterweight needs to be processed, it needs to be flipped over to process the bottom side after the other sides are processed. However, due to the large weight of the counterweight, the existing worktables cannot be flipped over. Therefore, other equipment is needed to flip it over, which is not only time-consuming and laborious, but also greatly reduces work efficiency.

[0004] Therefore, in order to address the aforementioned technical problems, it is necessary to provide a workbench for the production of counterweights for engineering machinery.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this utility model is to provide a workbench for the production of counterweights for engineering machinery, which can solve the problem that existing workbenches cannot be flipped over.

[0007] To achieve the above objectives, a specific embodiment of this utility model provides a workbench for producing counterweights for engineering machinery, comprising: a main frame and a transmission device;

[0008] A main shaft is mounted on the main frame, and a first rotating plate and a second rotating plate are rotatably mounted on the main shaft;

[0009] The transmission device is mounted on the main frame, which includes a pair of first arc-shaped racks. A second arc-shaped rack is slidably mounted on each of the first arc-shaped racks. A transmission shaft is mounted above the second arc-shaped racks, and a pair of first gears are fixed on the transmission shafts. The first gears mesh with the transmission shafts. A pair of first rotating shafts are mounted below the first arc-shaped racks, and a pair of second gears are fixed on each of the first rotating shafts. The second gears mesh with the first arc-shaped racks. Two pairs of fixed seats are fixed on the main frame, and damping rings are installed inside the fixed seats. Connecting blocks are fixed at both ends of the first rotating shafts inside the damping rings.

[0010] In one or more embodiments of this utility model, two pairs of extrusion blocks are fixed on the main frame. The rotation of the first arc-shaped rack drives the push block to rotate to the extrusion block, and the extrusion block pushes the push block into the fixing member first.

[0011] In one or more embodiments of this utility model, the end of the first arc-shaped rack near the first rotating plate is fixedly connected to the first rotating plate, and the end of the second arc-shaped rack near the second rotating plate is fixedly connected to the second rotating plate. The arc of the first arc-shaped rack and the second arc-shaped rack is centered on the main shaft. When the first arc-shaped rack rotates around the main shaft, it drives the first rotating plate to rotate around the main shaft. When the second arc-shaped rack rotates around the main shaft, it drives the second rotating plate to rotate around the main shaft.

[0012] In one or more embodiments of this utility model, a pair of locking slots are chiseled at one end of the second arc-shaped rack near the first rotating plate. Each pair of locking slots is slidably provided with a locking block, which is used to lock in the fixing member so that when the second arc-shaped rack rotates, it drives the first arc-shaped rack to rotate.

[0013] In one or more embodiments of this utility model, a second spring is fixed between the card block and the inner wall of the card block groove, and the elastic force provided by the second spring pushes the card block to move into the fixing member.

[0014] In one or more embodiments of this utility model, a pair of fixing members are fixed at the middle position of the first arc-shaped rack for locking the block in the fixing members, so that when the second arc-shaped rack rotates, it drives the first arc-shaped rack to rotate. Each pair of fixing members is slidably provided with a pushing block, which is used to push the block out of the fixing member and push the block into the block slot.

[0015] In one or more embodiments of this utility model, a ball is slidably provided at one end of the push block outside the fixing member. The ball is used to assist the push block in sliding on the extrusion block when the push block contacts the extrusion block.

[0016] In one or more embodiments of this utility model, a plurality of damping strips are fixed on the damping ring. The damping strips are used to increase the friction between the damping ring and the fixed seat, so that the damping ring plays a damping role when rotating in the fixed seat. A plurality of slots are drilled in the damping ring for the pawl to engage with.

[0017] In one or more embodiments of this utility model, the connecting block is provided with a plurality of pawl grooves, the pawl grooves are used for pawls to be disposed therein, a second rotating shaft is fixed in the pawl grooves, and the pawls rotate about the second rotating shaft as the axis.

[0018] In one or more embodiments of this utility model, a pawl is rotatably provided on the second rotating shaft. The pawl is engaged in a slot. The pawl engages in the slot, causing the connecting block to rotate and driving the damping ring to rotate. A first spring is installed between the pawl and the inner wall of the pawl slot. The elastic force of the first spring pushes the pawl into the slot.

[0019] Compared with the prior art, this utility model, through its related structural design, enables the counterweight to be flipped directly on the workbench for low-side processing, thus effectively improving work efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of a workbench for producing counterweights for engineering machinery, according to one embodiment of the present invention.

[0022] Figure 2 This is a perspective view of another state of a workbench for producing counterweights for engineering machinery, according to one embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of the transmission device in one embodiment of the present invention;

[0024] Figure 4 for Figure 3 The structural diagram shown at point A in the middle;

[0025] Figure 5 This is a schematic diagram of the main frame in one embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of the fixing base in one embodiment of the present invention;

[0027] Figure 7 This is a perspective cross-sectional view of the fixing seat in one embodiment of the present invention;

[0028] Figure 8 for Figure 7 The structural diagram shown at point B in the middle;

[0029] Figure 9 This is a schematic diagram of the structure of the push block in one embodiment of the present invention;

[0030] Figure 10 This is a three-dimensional cross-sectional view of the pushing block in one embodiment of the present invention.

[0031] Explanation of key figure labels:

[0032] 1-Main frame, 101-Main shaft, 102-First rotating plate, 103-Second rotating plate, 104-Extrusion block, 2-Transmission device, 201-First arc-shaped rack, 202-Second arc-shaped rack, 203-Transmission shaft, 204-First gear, 205-First rotating shaft, 206-Second gear, 207-Connecting block, 208-Damping ring, 209-Fixed seat, 210-Slot, 211-Pawl slot, 212-Pawl, 213-First spring, 214-Second rotating shaft, 215-Slot slot, 216-Slot, 217-Second spring, 218-Push block, 219-Ball, 220-Fixed component, 221-Damping strip. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0034] like Figures 1 to 10 As shown, a workbench for producing counterweights for engineering machinery in one embodiment of this utility model includes: a main frame 1 and a transmission device 2.

[0035] like Figure 1 and 4 As shown, a main shaft 101 is mounted on the main frame 1. A first rotating plate 102 and a second rotating plate 103 are rotatably mounted on the main shaft 101. The first rotating plate 102 and the second rotating plate 103 are used to flip the counterweight. Two pairs of pressing blocks 104 are fixed on the main frame 1. The rotation of the first arc-shaped rack 201 drives the pushing block 218 to rotate to the pressing block 104. The pressing block 104 pushes the pushing block 218 into the fixing member 220.

[0036] like Figures 1 to 3 As shown, the transmission device 2 is mounted on the main frame 1. The main frame 1 includes a pair of first arc-shaped racks 201, which drive the first rotating plate 102 to rotate around the main shaft 101. A second arc-shaped rack 202 is slidably mounted on each of the first arc-shaped racks 201, and the second arc-shaped rack 202 drives the second rotating plate 103 to rotate around the main shaft 101. A transmission shaft 203 is mounted above the second arc-shaped racks 202, and the transmission shaft 203 is used to connect an external drive device to drive its rotation. A pair of first gears 204 are fixed on the transmission shaft 203, and the first gears 204 mesh with the transmission shaft 203, driving the second arc-shaped racks 202 to rotate via the first gears 204.

[0037] like Figures 1 to 3 As shown, a pair of first rotating shafts 205 are provided below the first arc-shaped rack 201. A pair of second gears 206 are fixed on each of the first rotating shafts 205. The second gears 206 mesh with the first arc-shaped rack 201. When the first arc-shaped rack 201 rotates, it drives the first rotating shafts 205 to rotate through the second gears 206. At the same time, the first rotating shafts 205 support the first arc-shaped rack 201. Two pairs of fixed seats 209 are fixed on the main frame 1. Damping rings 208 are installed in the fixed seats 209. Connecting blocks 207 are fixed at both ends of the first rotating shafts 205 within the damping rings 208.

[0038] like Figures 4 to 10 As shown, the first arc-shaped rack 201 is fixedly connected to the first rotating plate 102 at one end, and the second arc-shaped rack 202 is fixedly connected to the second rotating plate 103 at one end. The arcs of the first arc-shaped rack 201 and the second arc-shaped rack 202 are centered on the main shaft 101. When the first arc-shaped rack 201 rotates around the main shaft 101, it drives the first rotating plate 102 to rotate around the main shaft 101. When the second arc-shaped rack 202 rotates around the main shaft 101, it drives the second rotating plate 103 to rotate around the main shaft 101. The second arc-shaped rack 202 has a pair of locking slots 215 at one end near the first rotating plate 102. Each of the two locking slots 215 has a locking block 216 slidably disposed therein. The locking block 216 is used to lock in the fixing member 220, so that when the second arc-shaped rack 202 rotates, it drives the first arc-shaped rack 201 to rotate.

[0039] like Figures 6 to 8As shown, a second spring 217 is fixed between the locking block 216 and the inner wall of the locking block groove 215. The elastic force provided by the second spring 217 pushes the locking block 216 into the fixing member 220. A pair of fixing members 220 are fixed at the middle position of the first arc-shaped rack 201 for locking the locking block 216 in the fixing members 220, so that when the second arc-shaped rack 202 rotates, it drives the first arc-shaped rack 201 to rotate. Pushing blocks 218 are slidably arranged in both fixing members 220. Pushing blocks 218 are used to push the locking block 216 out of the fixing members 220 and push the locking block 216 into the locking block groove 215. A ball 219 is slidably arranged at one end of the pushing block 218 outside the fixing member 220. The ball 219 is used to assist the pushing block 218 in sliding on the pressing block 104 when the pushing block 218 contacts the pressing block 104.

[0040] like Figures 6 to 8 As shown, multiple damping strips 221 are fixed on the damping ring 208. The damping strips 221 are used to increase the friction between the damping ring 208 and the fixed seat 209, so that the damping ring 208 plays a damping role when rotating within the fixed seat 209. Multiple slots 210 are carved inside the damping ring 208 for the pawl 212 to engage. Multiple pawl grooves 211 are carved on the connecting block 207 for the pawl 212 to be mounted therein. A second rotating shaft 214 is fixed inside the pawl groove 211, and the pawl 212 rotates around the second rotating shaft 214. The pawl 212 is rotatably mounted on the second rotating shaft 214.

[0041] like Figures 6 to 8 As shown, the pawl 212 is engaged in the slot 210, as... Figure 7 As shown, when the first rotating shaft 205 drives the connecting block 207 to rotate clockwise, the pawl 212 engages in the slot 210, causing the connecting block 207 to rotate and thus driving the damping ring 208 to rotate. The damping ring 208 rotates within the fixed seat 209. Because a damping strip 221 is fixed on the outer wall of the damping ring 208 that contacts the fixed seat 209, the damping ring 208 experiences significant friction when rotating within the fixed seat 209, allowing it to rotate only slowly. Therefore, the first rotating shaft 205 can also only rotate slowly. Figure 7 As shown, when the first rotating shaft 205 drives the connecting block 207 to rotate counterclockwise, the damping ring 208 pushes the pawl 212 into the pawl groove 211. At this time, the connecting block 207 rotates, but does not drive the damping ring 208 to rotate. Therefore, the rotation of the first rotating shaft 205 is not affected by resistance. A first spring 213 is installed between the pawl 212 and the inner wall of the pawl groove 211. The elastic force of the first spring 213 pushes the pawl 212 into the slot 210.

[0042] Working principle: First, before using this device, the drive shaft 203 needs to be connected to an external drive device to drive it to rotate. Then, the counterweight iron to be processed is placed on the first rotating plate 102 near the edge of the second rotating plate 103. The four sides and the top surface of the counterweight iron are first processed with borax or other methods. After the processing is completed, the drive device connected to the drive shaft 203 is started to drive the drive shaft 203 to rotate counterclockwise as shown in the main frame 1. The drive shaft 203 drives the second arc rack 202 to rotate counterclockwise around the main shaft 101 through the first gear 204. After the drive shaft 203 rotates 90 degrees, it is close to the side wall of the counterweight iron. When the second arc rack 202 rotates 90 degrees, it drives the locking block 216 to move to the position of the fixing part 220. At this time, the elastic force of the second spring 217 pushes the locking block 216 into the fixing part 220.

[0043] Then, the control drive device drives the transmission shaft 203 to rotate clockwise. The transmission shaft 203 drives the second arc-shaped rack 202 to rotate clockwise through the first gear 204. Since the locking block 216 is locked in the fixing member 220, the rotation of the second arc-shaped rack 202 simultaneously drives the first arc-shaped rack 201 to rotate. Therefore, the first rotating plate 102 and the second rotating plate 103 are always at a 90-degree angle, rotating around the main shaft 101. After rotating 90 degrees, the first rotating plate 102 and the second rotating plate 103 drive the counterweight from the first rotating plate 102. 02 rotates to the second rotating plate 103, rotating the side that was not processed on the bottom to the side for further processing. While the first arc-shaped rack 201 rotates, the first arc-shaped rack 201 drives the first rotating shaft 205 to rotate counterclockwise through the second gear 206. When the first rotating shaft 205 drives the connecting block 207 to rotate counterclockwise, the damping ring 208 pushes the pawl 212 into the pawl groove 211. At this time, the connecting block 207 rotates without driving the damping ring 208 to rotate, so the rotation of the first rotating shaft 205 is not affected by resistance.

[0044] When the first arc-shaped rack 201 rotates 90 degrees, it drives the pushing block 218 to the pressing block 104. After the pushing block 218 contacts the pressing block 104, the pressing block 104 pushes the pushing block 218 into the fixing member 220. Therefore, the pushing block 218 pushes the locking block 216 into the locking slot 215. When the first arc-shaped rack 201 has just rotated 90 degrees, the locking block 216 is completely pushed into the locking slot 215. At this time, the locking block 216 is no longer locked in the fixing member 220. At this time, the first arc-shaped rack 201 is subjected to the first rotating plate 102 and its own gravity, causing it to rotate counterclockwise. At the same time, the first arc-shaped rack 201 passes through the second Gear 206 drives the first rotating shaft 205 to rotate counterclockwise, and the first rotating shaft 205 drives the connecting block 207 to rotate clockwise. The elastic force of the first spring 213 pushes the pawl 212 into the slot 210, causing the connecting block 207 to rotate and drive the damping ring 208 to rotate. The damping ring 208 rotates in the fixed seat 209. Since the damping strip 221 is fixed on the outer wall of the damping ring 208 that contacts the fixed seat 209, the damping ring 208 is subjected to a large frictional force when rotating in the fixed seat 209, so that it can only rotate slowly. Therefore, the first rotating shaft 205 can only rotate slowly. Thus, the first arc-shaped rack 201 drives the first rotating plate 102 to slowly fall onto the main frame 1.

[0045] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A workbench for producing counterweights for engineering machinery, characterized in that, The A main frame, on which a main shaft is mounted, and a first rotating plate and a second rotating plate are rotatably mounted on the main shaft; A transmission device is mounted on a main frame. The main frame includes a pair of first arc-shaped racks, each of which has a second arc-shaped rack slidably mounted on it. A transmission shaft is positioned above the second arc-shaped racks, and a pair of first gears are fixed on the transmission shafts. The first gears mesh with the transmission shafts. A pair of first rotating shafts are positioned below the first arc-shaped racks, and a pair of second gears are fixed on each of the first rotating shafts. The second gears mesh with the first arc-shaped racks. Two pairs of fixed seats are fixed on the main frame, and damping rings are installed inside the fixed seats. Connecting blocks are fixed at both ends of the first rotating shafts within the damping rings.

2. The workbench for producing counterweights for engineering machinery according to claim 1, characterized in that, Two pairs of compression blocks are fixed on the main frame.

3. The workbench for producing counterweights for engineering machinery according to claim 1, characterized in that, The first arc-shaped rack is fixedly connected to the first rotating plate at one end, and the second arc-shaped rack is fixedly connected to the second rotating plate at one end. The arc of the first and second arc-shaped racks is centered on the main shaft.

4. The workbench for producing counterweights for engineering machinery according to claim 1, characterized in that, The second arc-shaped rack has a pair of locking slots at one end near the first rotating plate, and a locking block is slidably disposed in each of the two locking slots.

5. A workbench for producing counterweights for engineering machinery according to claim 4, characterized in that, A second spring is fixed between the card block and the inner wall of the card block slot.

6. A workbench for producing counterweights for engineering machinery according to claim 1, characterized in that, A pair of fixing members are fixed at the middle position of the first arc-shaped rack, and a pushing block is slidably arranged in each pair of fixing members.

7. A workbench for producing counterweights for engineering machinery according to claim 6, characterized in that, The push block has a rolling ball slidably disposed at one end outside the fixed component.

8. A workbench for producing counterweights for engineering machinery according to claim 1, characterized in that, Multiple damping strips are fixed on the damping ring, and multiple slots are drilled inside the damping ring.

9. A workbench for producing counterweights for engineering machinery according to claim 8, characterized in that, The connecting block has multiple ratchet grooves, and a second rotating shaft is fixed in the ratchet grooves.

10. A workbench for producing counterweights for engineering machinery according to claim 9, characterized in that, A pawl is rotatably mounted on the second rotating shaft. The pawl is engaged in a slot, and a first spring is installed between the pawl and the inner wall of the pawl slot.

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